CN115412273A - Communication method and device for power line low-voltage transformer area - Google Patents

Abstract

The application relates to a communication method and a device for a low-voltage distribution area of a power line, wherein the method comprises the following steps: the first root node receives an access network request message of a target slave node, wherein the access network request message comprises identity information of the target slave node; the first root node determines whether the target slave node is accessed to a low-voltage distribution area where the first root node is located or not according to the identity information of the target slave node; the target slave nodes comprise slave nodes corresponding to the first root node and slave nodes corresponding to the second root node. In the method, the slave node corresponding to the first root node and the slave node corresponding to the second root node in the low-voltage distribution area are configured in a topological network in a low-voltage distribution area communication link layer, so that the communication performance of the low-voltage distribution area is improved, the stable operation of services is ensured, the service expansion of the low-voltage distribution area is facilitated, and the service development requirements are met.

Description

Translated fromChinese

一种电力线低压台区的通信方法及装置Communication method and device for power line low-voltage station area

技术领域technical field

本申请涉及通信技术领域，尤其涉及一种电力线低压台区的通信方法及装置。The present application relates to the technical field of communication, and in particular to a communication method and device for a power line low-voltage station area.

背景技术Background technique

在电力网络中，低压台区中的设备一般归属于营销部或设备部，其中，营销部所管理的设备组建为营销采集抄表网络，设备部所管理的设备组建为设备配置网络；这两个网络在低压台区的通信链路层为两个彼此独立的拓扑网络(Topology，TOPO)，两个拓扑网络中的设备在通信链路上互不融通，影响了低压台区的通信性能，无法保证低压台区中业务的稳定运行；同时，低压台区中的设备分属两个拓扑网络，不利于低压台区的业务扩展。In the power network, the equipment in the low-voltage station area generally belongs to the marketing department or the equipment department. Among them, the equipment managed by the marketing department is organized into a marketing collection meter reading network, and the equipment managed by the equipment department is organized into an equipment configuration network; The communication link layer of the network in the low-voltage station area is two independent topological networks (Topology, TOPO). The devices in the two topological networks are not compatible with each other on the communication link, which affects the communication performance of the low-voltage station area. The stable operation of the business in the low-voltage station area cannot be guaranteed; at the same time, the equipment in the low-voltage station area belongs to two topological networks, which is not conducive to the business expansion of the low-voltage station area.

发明内容Contents of the invention

本申请提出了一种电力线低压台区的通信方法、装置、存储介质及计算机程序。The application proposes a communication method, device, storage medium and computer program for a power line low-voltage station area.

第一方面，本申请的实施例提供了一种电力线低压台区的通信方法，所述方法包括：第一根节点接收目标从节点的接入网络请求报文，所述接入网络请求报文包括所述目标从节点的身份信息；所述第一根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第一根节点所在的低压台区；其中，所述目标从节点包括所述第一根节点对应的从节点，及第二根节点对应的从节点。In the first aspect, an embodiment of the present application provides a communication method for a power line low-voltage station area. The method includes: the first root node receives a network access request message from a target slave node, and the network access request message Including the identity information of the target slave node; the first root node determines whether the target slave node accesses the low-voltage station area where the first root node is located according to the identity information of the target slave node; wherein, the The target slave node includes a slave node corresponding to the first root node, and a slave node corresponding to the second root node.

基于上述技术方案，可以将第一根节点对应的从节点及第二根节点对应的从节点在低压台区通信链路层中配置到一个拓扑网络中，低压台区中的节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。Based on the above technical solution, the slave nodes corresponding to the first root node and the slave nodes corresponding to the second root node can be configured in a topology network in the communication link layer of the low-voltage station area, and the nodes in the low-voltage station area are in the communication link layer In order to improve the communication performance of the low-voltage station area and ensure the stable operation of the business in the low-voltage station area; at the same time, the nodes in the low-voltage station area belong to the same topology network, which is convenient for the business expansion of the low-voltage station area, so as to meet the needs of business development needs.

在一种可能的实现方式中，所述第一根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第一根节点所在的低压台区，包括：所述第一根节点在所述第一根节点对应的白名单中查找所述目标从节点的身份信息，所述第一根节点对应的白名单包括所述第一根节点对应的从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单的情况下，所述第一根节点向所述目标从节点发送接入网络成功报文；否则，所述第一根节点向所述第二根节点发送所述接入网络请求报文。In a possible implementation manner, the first root node determines whether the target slave node accesses the low-voltage platform area where the first root node is located according to the identity information of the target slave node, including: the The first root node searches for the identity information of the target slave node in the white list corresponding to the first root node, and the white list corresponding to the first root node includes the identity information of the slave node corresponding to the first root node ; When the identity information of the target slave node belongs to the white list corresponding to the first root node, the first root node sends a network access success message to the target slave node; otherwise, the first root node A node sends the network access request packet to the second root node.

基于上述技术方案，第一根节点接收到目标从节点的接入网络请求报文后，在目标从节点的身份信息属于第一根节点对应的白名单的情况下，允许目标从节点入网；并在目标从节点的身份信息不属于第一根节点对应的白名单的情况下，将网络请求报文发送至第二根节点，以便第二根基点进行认证，从而将第一根节点对应的从节点及第二根节点对应的从节点在低压台区通信链路层中配置到一个拓扑网络中，这样，低压台区中的节点在通信链路上互相融通，两个节点之间的通信路径中，可以以第一根节点的从节点、第二根节点对应的从节点中的至少一项作为中继，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。Based on the above technical solution, after receiving the network access request message of the target slave node, the first root node allows the target slave node to access the network when the identity information of the target slave node belongs to the white list corresponding to the first root node; and When the identity information of the target slave node does not belong to the white list corresponding to the first root node, the network request message is sent to the second root node so that the second root node can perform authentication, so that the slave corresponding to the first root node Nodes and the slave nodes corresponding to the second root node are configured in a topological network in the communication link layer of the low-voltage station area. In this way, the nodes in the low-voltage station area communicate with each other on the communication link, and the communication path between the two nodes Among them, at least one of the slave node of the first root node and the slave node corresponding to the second root node can be used as a relay, thereby improving the communication performance of the low-voltage station area and ensuring the stable operation of the business in the low-voltage station area; At the same time, the nodes in the low-voltage station area belong to the same topology network, which is convenient for the business expansion of the low-voltage station area, so as to meet the business development needs.

在一种可能的实现方式中，所述方法还包括：所述第一根节点接收所述第二根节点发送的所述目标从节点的接入网络请求报文；所述第一根节点在所述第一根节点对应的白名单中查找所述目标从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单的情况下，所述第一根节点向所述第二根节点发送接入网络成功报文，并由所述第二根节点转发至所述目标从节点。In a possible implementation manner, the method further includes: the first root node receiving the network access request message of the target slave node sent by the second root node; Find the identity information of the target slave node in the white list corresponding to the first root node; when the identity information of the target slave node belongs to the white list corresponding to the first root node, the first root node The node sends a network access success message to the second root node, and is forwarded by the second root node to the target slave node.

基于上述技术方案，第二根节点接收到目标从节点的接入网络请求报文后，可以转发到第一根节点，由第一根节点及第二根节点分别在对应的白名单中查找目标从节点的身份信息，从而通过共同认证组网，将第一根节点对应的从节点及第二根节点对应的从节点在低压台区通信链路层中配置到一个拓扑网络中，这样，低压台区中的节点在通信链路上互相融通，两个节点之间的通信路径中，可以以第一根节点的从节点、第二根节点对应的从节点中的至少一项作为中继，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。Based on the above technical solution, after the second root node receives the network access request message from the target slave node, it can forward it to the first root node, and the first root node and the second root node search for the target in the corresponding white list respectively. The identity information of the slave node, so that through the joint authentication network, the slave node corresponding to the first root node and the slave node corresponding to the second root node are configured in a topology network in the communication link layer of the low-voltage station area. In this way, the low-voltage The nodes in the station area communicate with each other on the communication link. In the communication path between the two nodes, at least one of the slave node of the first root node and the slave node corresponding to the second root node can be used as a relay. In this way, the communication performance of the low-voltage station area is improved, and the stable operation of the business in the low-voltage station area is ensured; at the same time, the nodes in the low-voltage station area belong to the same topology network, which facilitates the business expansion of the low-voltage station area, thereby meeting the needs of business development.

在一种可能的实现方式中，所述第一根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第一根节点所在的低压台区，包括：所述第一根节点接收所述第二根节点对应的白名单；所述第二根节点对应的白名单包括所述第二根节点对应的从节点的身份信息；所述第一根节点在所述第一根节点对应的白名单及所述第二根节点对应的白名单中查找所述目标从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单或所述第二根节点对应的白名单的情况下，所述第一根节点向所述目标从节点发送接入网络成功报文。In a possible implementation manner, the first root node determines whether the target slave node accesses the low-voltage platform area where the first root node is located according to the identity information of the target slave node, including: the The first root node receives the white list corresponding to the second root node; the white list corresponding to the second root node includes the identity information of the slave node corresponding to the second root node; the first root node is in the Find the identity information of the target slave node in the white list corresponding to the first root node and the white list corresponding to the second root node; the identity information of the target slave node belongs to the white list corresponding to the first root node Or in the case of the whitelist corresponding to the second root node, the first root node sends a network access success message to the target slave node.

基于上述技术方案，第二根节点将第二根节点对应的白名单授权给第一根节点，第一根节点接收到目标从节点的接入网络请求报文后，通过在第一根节点对应的白名单及第二根节点对应的白名单中查找目标从节点的身份信息，实现认证组网，从而将第一根节点对应的从节点及第二根节点对应的从节点在低压台区通信链路层中配置到一个拓扑网络中，这样，低压台区中的节点在通信链路上互相融通，两个节点之间的通信路径中，可以以第一根节点的从节点、第二根节点对应的从节点中的至少一项作为中继，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。Based on the above technical solution, the second root node authorizes the white list corresponding to the second root node to the first root node, and after receiving the network access request message from the target slave node, the first root node Find the identity information of the target slave node in the white list corresponding to the second root node and the white list corresponding to the second root node, and realize authentication networking, so that the slave node corresponding to the first root node and the slave node corresponding to the second root node communicate in the low-voltage station area The link layer is configured in a topological network, so that the nodes in the low-voltage station area can communicate with each other on the communication link, and the communication path between the two nodes can be based on the slave node of the first root node and the second root node. At least one of the slave nodes corresponding to the node acts as a relay, thereby improving the communication performance of the low-voltage station area and ensuring the stable operation of the business in the low-voltage station area; at the same time, the nodes in the low-voltage station area belong to the same topology network, which is convenient The business expansion of the low-voltage station area, so as to meet the needs of business development.

在一种可能的实现方式中，所述方法还包括：所述第一根节点向所述第二根节点发送所述第一根节点对应的白名单。In a possible implementation manner, the method further includes: the first root node sending a whitelist corresponding to the first root node to the second root node.

基于上述技术方案，第一根节点将第一根节点对应的白名单授权给第二根节点，以便第二根节点接收到目标从节点的接入网络请求报文后，通过在第二根节点对应的白名单及第一根节点对应的白名单中查找目标从节点的身份信息，实现认证组网。Based on the above technical solution, the first root node authorizes the whitelist corresponding to the first root node to the second root node, so that after the second root node receives the network access request message from the target slave node, Find the identity information of the target slave node in the corresponding white list and the white list corresponding to the first root node to realize authentication networking.

在一种可能的实现方式中，所述方法还包括：所述第一根节点监听网络中的根节点；所述网络包括至少一个低压台区；所述第一根节点在所监听到的根节点中，确定与所述第一根节点匹配的第二根节点。In a possible implementation manner, the method further includes: the first root node monitors a root node in the network; the network includes at least one low-voltage station area; Among the nodes, a second root node matching the first root node is determined.

在第一根节点不进行根节点配对的情况下，第一根节点无法确定与其位于同一低压台区的根节点，进而影响低压台区中通信链路层的同一拓扑网络的共同组建、管理及维护。基于上述技术方案，第一根节点确定与第一根节点匹配的第二根节点，第一根节点与第二根节点属于同一低压台区，从而可以共同组建、管理和维护低压台区中通信链路层的同一拓扑网络。In the case that the first root node does not perform root node pairing, the first root node cannot determine the root node located in the same low-voltage station area, which will affect the common establishment, management and communication of the same topology network at the communication link layer in the low-voltage station area. maintain. Based on the above technical solution, the first root node determines the second root node that matches the first root node, and the first root node and the second root node belong to the same low-voltage station area, so that communication in the low-voltage station area can be jointly established, managed and maintained Same topology network at the link layer.

在一种可能的实现方式中，所述方法还包括：所述第一根节点接收所述第一根节点对应的从节点的网络信息，所述第一根节点对应的从节点的网络信息包括：所述第一根节点对应的从节点的离线信息或所述第一根节点对应的从节点的在线信息中的至少一项；所述第一根节点根据所接收的所述第一根节点对应的从节点的网络信息，更新所述第一根节点对应的路由信息；所述第一根节点对应的路由信息包括所述第一根节点与所述第一根节点对应的从节点之间的通信路径或第一路由度量值中的至少一项；所述第一根节点向所述第二根节点发送所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息。In a possible implementation manner, the method further includes: the first root node receiving network information of a slave node corresponding to the first root node, where the network information of the slave node corresponding to the first root node includes : at least one of the offline information of the slave node corresponding to the first root node or the online information of the slave node corresponding to the first root node; the first root node according to the received first root node The network information of the corresponding slave node, and update the routing information corresponding to the first root node; the routing information corresponding to the first root node includes the relationship between the first root node and the slave node corresponding to the first root node at least one of the communication path or the first route metric value; the first root node sends the network information of the slave node corresponding to the first root node and/or the first root node to the second root node The routing information corresponding to the node.

基于上述技术方案，第一根节点可以根据所接收的第一从节点的网络信息，更新第一根节点对应的路由信息，并可以主动向第二根节点发送第一根节点对应的从节点的网络信息和/或更新后的第一根节点对应的路由信息，从而实现两个根节点之间的网络信息同步。Based on the above technical solution, the first root node can update the routing information corresponding to the first root node according to the received network information of the first slave node, and can actively send the routing information of the slave node corresponding to the first root node to the second root node. Network information and/or updated routing information corresponding to the first root node, so as to realize synchronization of network information between two root nodes.

在一种可能的实现方式中，所述方法还包括：所述第一根节点接收所述第一根节点对应的从节点的网络信息；所述第一根节点根据所接收的所述第一根节点对应的从节点的网络信息，更新所述第一根节点对应的路由信息；所述第一根节点接收所述第二根节点的获取网络信息请求报文；所述第一根节点向所述第二根节点发送所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息。In a possible implementation manner, the method further includes: the first root node receiving network information of a slave node corresponding to the first root node; the first root node according to the received first the network information of the slave node corresponding to the root node, and update the routing information corresponding to the first root node; the first root node receives the network information acquisition request message of the second root node; the first root node sends The second root node sends the network information of the slave node corresponding to the first root node and/or the routing information corresponding to the first root node.

基于上述技术方案，第一根节点可以根据所接收的第一从节点的网络信息，更新第一根节点对应的路由信息；同时，可以在接收到第二根节点的获取网络信息请求报文之后，向第二根节点发送从节点的网络信息和/或更新后的第一根节点对应的路由信息，从而实现两个根节点之间的信息同步。Based on the above technical solution, the first root node can update the routing information corresponding to the first root node according to the received network information of the first slave node; at the same time, after receiving the network information request message of the second root node , sending the network information of the slave node and/or the updated routing information corresponding to the first root node to the second root node, so as to realize information synchronization between the two root nodes.

在一种可能的实现方式中，所述方法还包括：所述第一根节点接收所述第二根节点发送的所述第二根节点对应的从节点的网络信息和/或所述第二根节点对应的路由信息；所述第二根节点对应的从节点的网络信息包括：所述第二根节点对应的从节点的离线信息或所述第二根节点对应的从节点的在线信息中的至少一项；所述第二根节点对应的路由信息包括所述第二根节点与所述第二根节点对应的从节点之间的通信路径或第二路由度量值中的至少一项。In a possible implementation manner, the method further includes: the first root node receiving the network information of the slave node corresponding to the second root node sent by the second root node and/or the second The routing information corresponding to the root node; the network information of the slave node corresponding to the second root node includes: the offline information of the slave node corresponding to the second root node or the online information of the slave node corresponding to the second root node at least one item; the routing information corresponding to the second root node includes at least one item of a communication path between the second root node and a slave node corresponding to the second root node or a second routing metric value.

基于上述技术方案，第一根节点可以接收第二根节点主动发送的从节点的网络信息和/或第二根节点对应的路由信息，从而实现两个根节点之间的网络信息同步。Based on the above technical solution, the first root node can receive the network information of the slave node and/or the routing information corresponding to the second root node actively sent by the second root node, so as to realize the synchronization of network information between the two root nodes.

在一种可能的实现方式中，所述方法还包括：所述第一根节点向所述第二根节点发送获取网络信息请求报文；所述第一根节点接收所述第二根节点发送的所述第二根节点对应的从节点的网络信息和/或所述第二根节点对应的路由信息。In a possible implementation manner, the method further includes: the first root node sending a network information acquisition request message to the second root node; the first root node receiving the request message sent by the second root node The network information of the slave node corresponding to the second root node and/or the routing information corresponding to the second root node.

基于上述技术方案，第一根节点向第二根节点发起获取网络信息的请求，并接收第二根节点发送的从节点的网络信息和/或第二根节点对应的路由信息，从而实现信息同步。Based on the above technical solution, the first root node initiates a request to obtain network information from the second root node, and receives the network information of the slave node sent by the second root node and/or the routing information corresponding to the second root node, thereby realizing information synchronization .

在一种可能的实现方式中，所述方法还包括：所述第一根节点发送第一业务报文，所述第一业务报文中包括第一目的节点标识和下一级节点标识，其中，所述第一目的节点为所述第一根节点对应的第一从节点，所述第一从节点为所述第一根节点对应的从节点中的任一个从节点，所述第一下一级节点为所述第二根节点对应的从节点、所述第二根节点或所述第一根节点对应的第二从节点中的任一节点，所述第二从节点为所述第一根节点对应的从节点中除所述第一从节点之外的任一个从节点。In a possible implementation manner, the method further includes: the first root node sending a first service packet, the first service packet including a first destination node identifier and a lower-level node identifier, wherein , the first destination node is the first slave node corresponding to the first root node, the first slave node is any one of the slave nodes corresponding to the first root node, and the first lower The first-level node is any one of the slave node corresponding to the second root node, the second root node, or the second slave node corresponding to the first root node, and the second slave node is the first Any one of the slave nodes corresponding to one node except the first slave node.

在第一根节点对应的从节点与第二根节点对应的从节点在通信链路层分属于不同拓扑网络时，第一根节点在向目的节点发送业务报文的时候，通信路径只能包括第一根节点的从节点，这样，通信路径可能较长，信道衰减和噪声较大，通信稳定性和可靠性较差；基于上述技术方案，由于第一根节点、第一根节点对应的从节点、第二根节点和第二根节点对应的从节点在通信链路层属于同一个网络，第一根节点可以获取第二根节点的从节点的路由信息，在向目的节点发送业务报文的时候，通信路径并不是只能包括第一根节点的从节点，第一根节点可以综合考虑第一根节点对应的从节点、第二根节点对应的从节点及第二根节点，选择最优的发送路径，例如，在第一根节点向第一从节点发送业务报文时，以第二根节点、第二从节点或第二根节点对应的从节点中至少一个节点作为中继，转发该业务报文，通信路径较短，通信更加稳定和可靠；从而提升通信性能，确保业务的稳定运行。When the slave node corresponding to the first root node and the slave node corresponding to the second root node belong to different topological networks at the communication link layer, when the first root node sends a service message to the destination node, the communication path can only include The slave node of the first root node, in this way, the communication path may be longer, the channel attenuation and noise are larger, and the communication stability and reliability are poor; The node, the second root node and the slave node corresponding to the second root node belong to the same network at the communication link layer, the first root node can obtain the routing information of the slave node of the second root node, and send a service message to the destination node When the communication path does not only include the slave nodes of the first root node, the first root node can comprehensively consider the slave nodes corresponding to the first root node, the slave nodes corresponding to the second root node, and the second root node, and choose the most An optimal sending path, for example, when the first root node sends a service message to the first slave node, at least one of the second root node, the second slave node, or the slave node corresponding to the second root node is used as a relay, The service message is forwarded, the communication path is shorter, and the communication is more stable and reliable; thereby improving the communication performance and ensuring the stable operation of the service.

在一种可能的实现方式中，所述方法还包括：所述第一根节点接收第二业务报文，所述第二业务报文中包括第二目的节点标识，其中，所述第二目的节点为所述第二根节点对应的从节点或所述第二根节点。In a possible implementation manner, the method further includes: the first root node receiving a second service packet, the second service packet including a second destination node identifier, wherein the second destination The node is a slave node corresponding to the second root node or the second root node.

基于上述技术方案，在第二根节点与第二根节点对应的从节点交互业务报文时，以第一根节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the second root node and the slave node corresponding to the second root node exchange service messages, the first root node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the service .

在一种可能的实现方式中，所述方法还包括：在所述第一根节点无法获取到达目的节点的路由信息的情况下，所述第一根节点将第三业务报文发送给所述第二根节点，并由所述第二根节点转发至所述目的节点；所述目的节点为所述第一根节点对应的从节点。In a possible implementation manner, the method further includes: when the first root node cannot obtain routing information to the destination node, the first root node sends a third service packet to the the second root node, and forwarded by the second root node to the destination node; the destination node is the slave node corresponding to the first root node.

目的节点为第一根节点对应的从节点，若第一根节点对应的从节点与第二根节点对应的从节点在通信链路层分属于不同拓扑网络，在第一根节点无法获取到达目的节点的路由信息的情况下，则第一根节点无法与目的节点交互业务报文，使得业务无法稳定运行；基于上述技术方案，由于第一根节点、第一根节点对应的从节点、第二根节点和第二根节点对应的从节点在通信链路层属于同一个网络，在第一根节点无法获取到达目的节点的路由信息的情况下，第一根节点可以综合考虑第一根节点对应的从节点、第二根节点对应的从节点及第二根节点，选择其他的发送路径，例如，以第二根节点作为中继，将业务报文转发至目的节点，从而提升通信性能，确保业务的稳定运行。The destination node is the slave node corresponding to the first root node. If the slave node corresponding to the first root node and the slave node corresponding to the second root node belong to different topological networks at the communication link layer, the destination node cannot be obtained at the first root node. In the case of the routing information of the node, the first root node cannot exchange service packets with the destination node, so that the business cannot run stably; based on the above technical solution, because the first root node, the slave node corresponding to the first root node, The slave nodes corresponding to the root node and the second root node belong to the same network at the communication link layer. When the first root node cannot obtain the routing information to the destination node, the first root node can comprehensively consider the corresponding The slave node corresponding to the second root node and the second root node select other transmission paths, for example, use the second root node as a relay to forward the service message to the destination node, thereby improving communication performance and ensuring stable operation of the business.

在一种可能的实现方式中，所述方法还包括：所述第一根节点接收所述第二根节点转发的第四业务报文，所述第四业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the method further includes: the first root node receiving a fourth service message forwarded by the second root node, the fourth service message being the first root node A message sent by the corresponding slave node to the first root node.

基于上述技术方案，在第一根节点对应的从节点向第一根节点发送业务报文时，以第二根节点作为中继，将该业务报文转发至第一根节点，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the slave node corresponding to the first root node sends a service message to the first root node, the second root node is used as a relay to forward the service message to the first root node, thereby improving communication performance , to ensure the stable operation of the business.

在一种可能的实现方式中，所述方法还包括：所述第一根节点将第五业务报文发送给所述第二根节点对应的从节点，并由所述第二根节点对应的从节点转发至目的节点；所述目的节点为所述第一根节点对应的从节点。In a possible implementation manner, the method further includes: the first root node sending the fifth service message to the slave node corresponding to the second root node, and the second root node corresponding The slave node forwards to the destination node; the destination node is a slave node corresponding to the first root node.

基于上述技术方案，由于第一根节点、第一根节点对应的从节点、第二根节点和第二根节点对应的从节点在通信链路层属于同一个网络，第一根节点可以获取第二根节点对应的从节点的路由信息，在向目的节点发送业务报文的时候，发送路径并不是只能包括第一根节点对应的从节点，第一根节点可以综合考虑第一根节点对应的从节点以及第二根节点对应的从节点，选择最优的发送路径，例如，在第一根节点向第一根节点对应的从节点发送业务报文时，可以以第二根节点对应的从节点作为中继，转发该业务报文，从而提升通信性能，确保业务稳定运行；同时，无需通过第二根节点转发，从而减少了第一根节点与第二根节点之间的报文交互，节省了带宽。Based on the above technical solution, since the first root node, the slave node corresponding to the first root node, the second root node, and the slave node corresponding to the second root node belong to the same network at the communication link layer, the first root node can obtain the first The routing information of the slave node corresponding to the second root node. When sending a service message to the destination node, the sending path does not only include the slave node corresponding to the first root node. The first root node can comprehensively consider the corresponding The slave node corresponding to the second root node and the slave node corresponding to the second root node select the optimal sending path. For example, when the first root node sends a service message to the slave node corresponding to the first root node, the The slave node acts as a relay to forward the service message, thereby improving the communication performance and ensuring the stable operation of the service; at the same time, it does not need to be forwarded through the second root node, thereby reducing the message interaction between the first root node and the second root node , saving bandwidth.

在一种可能的实现方式中，所述方法还包括：所述第一根节点接收所述第二根节点对应的从节点转发的第六业务报文，所述第六业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the method further includes: the first root node receiving a sixth service packet forwarded by a slave node corresponding to the second root node, the sixth service packet being the A message sent by the slave node corresponding to the first root node to the first root node.

基于上述技术方案，在第一根节点对应的从节点向第一根节点发送业务报文时，以第二根节点对应的从节点作为中继，将该业务报文转发至第一根节点，从而提升通信性能，确保业务稳定运行；同时，无需通过第二根节点转发，从而减少了第一根节点与第二根节点之间的报文交互，节省了带宽。Based on the above technical solution, when the slave node corresponding to the first root node sends a service message to the first root node, the slave node corresponding to the second root node is used as a relay to forward the service message to the first root node, This improves communication performance and ensures stable business operation; at the same time, it does not need to be forwarded through the second root node, thereby reducing message interaction between the first root node and the second root node and saving bandwidth.

在一种可能的实现方式中，所述方法还包括：所述第一根节点监听所述第一根节点所在低压台区中的流量信息；所述流量信息包括单位时间监听到的所述第一根节点所在低压台区的报文总量；在所述流量信息满足预设条件的情况下，所述第一根节点向所述第二根节点发送带宽协商报文；所述带宽协商报文用于确定所述第一根节点所在低压台区中各待发送报文的优先级；所述第一根节点根据所述各待发送报文的优先级，发送所述各待发送报文；或者，所述第一根节点接收所述第二根节点的带宽协商报文，所述带宽协商报文用于确定所述第一根节点所在低压台区中各待发送报文的优先级；所述第一根节点根据所确定的各待发送报文的优先级，发送所述各待发送报文。In a possible implementation manner, the method further includes: the first root node monitors flow information in the low-voltage platform area where the first root node is located; the flow information includes the first root node monitored per unit time. The total amount of messages in the low-voltage station area where a node is located; when the flow information meets the preset conditions, the first root node sends a bandwidth negotiation message to the second root node; the bandwidth negotiation report The text is used to determine the priority of each message to be sent in the low-voltage station area where the first root node is located; the first root node sends each message to be sent according to the priority of each message to be sent ; Or, the first root node receives the bandwidth negotiation message of the second root node, and the bandwidth negotiation message is used to determine the priority of each message to be sent in the low-voltage station area where the first root node is located ; The first root node sends each message to be sent according to the determined priority of each message to be sent.

基于上述技术方案，在流量信息满足预设条件的情况下，例如，单位时间内低压台区中国发送的报文总量超过一定阈值时，第一根节点与第二根节点可以进行带宽协调，并根据所确定的各待发送报文的优先级，发送各待发送报文，从而确保报文传输的实时性，避免出现网络拥塞。Based on the above technical solution, when the traffic information satisfies the preset conditions, for example, when the total amount of messages sent by China in the low-voltage station area per unit time exceeds a certain threshold, the first root node and the second root node can carry out bandwidth coordination. And send each message to be sent according to the determined priority of each message to be sent, so as to ensure the real-time performance of message transmission and avoid network congestion.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别或三相不平衡治理中的至少一项；或者，所述第一根节点用于设备配置业务，所述第二根节点用于营销采集抄表业务。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification, or three-phase imbalance control; or, the first root node is used for equipment configuration services, and the second root node is used for marketing collection Meter reading business.

基于上述技术方案，可以将低压台区中不同部门所管理的节点在该低压台区通信链路层中配置到一个拓扑网络中，这些节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了营销采集抄表业务及设备配置业务的稳定运行；同时，不同部门所管理的节点属于同一拓扑网络，便于扩展新的业务，从而满足业务发展需求。Based on the above technical solutions, the nodes managed by different departments in the low-voltage station area can be configured in a topological network in the communication link layer of the low-voltage station area. These nodes communicate with each other on the communication link, thereby improving the low-voltage station area. Excellent communication performance ensures the stable operation of marketing collection meter reading business and equipment configuration business; at the same time, the nodes managed by different departments belong to the same topology network, which facilitates the expansion of new services to meet the needs of business development.

第二方面，本申请的实施例提供了一种电力线低压台区的通信方法，所述方法包括：第二根节点接收目标从节点的接入网络请求报文，所述接入网络请求报文包括所述目标从节点的身份信息；所述第二根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第二根节点所在的低压台区；其中，所述目标从节点包括所述第二根节点对应的从节点，及第一根节点对应的从节点。In a second aspect, an embodiment of the present application provides a communication method for a power line low-voltage station area. The method includes: the second root node receives a network access request message from a target slave node, and the network access request message Including the identity information of the target slave node; the second root node determines whether the target slave node accesses the low-voltage station area where the second root node is located according to the identity information of the target slave node; wherein, the The target slave node includes a slave node corresponding to the second root node, and a slave node corresponding to the first root node.

基于上述技术方案，可以将低压台区中第一根节点对应的从节点及第二根节点对应的从节点在低压台区通信链路层中配置到一个拓扑网络中，低压台区中的节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。Based on the above technical solution, the slave nodes corresponding to the first root node in the low-voltage station area and the slave nodes corresponding to the second root node can be configured in a topological network in the communication link layer of the low-voltage station area, and the nodes in the low-voltage station area Mutual integration on the communication link, thereby improving the communication performance of the low-voltage station area and ensuring the stable operation of the business in the low-voltage station area; at the same time, the nodes in the low-voltage station area belong to the same topology network, which is convenient for the business expansion of the low-voltage station area , so as to meet the needs of business development.

在一种可能的实现方式中，所述第二根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第二根节点所在的低压台区，包括：所述第二根节点接收所述第一根节点发送的所述目标从节点的接入网络请求报文；所述第二根节点在所述第二根节点对应的白名单中查找所述目标从节点的身份信息；所述第二根节点对应的白名单包括所述第二根节点对应的从节点的身份信息；在所述目标从节点的身份信息属于所述第二根节点对应的白名单的情况下，所述第二根节点向所述第一根节点发送接入网络成功报文，并由所述第一根节点转发至所述目标从节点。In a possible implementation manner, the second root node determines whether the target slave node accesses the low-voltage station area where the second root node is located according to the identity information of the target slave node, including: the The second root node receives the network access request message of the target slave node sent by the first root node; the second root node searches for the target slave node in the whitelist corresponding to the second root node identity information; the white list corresponding to the second root node includes the identity information of the slave node corresponding to the second root node; the identity information of the target slave node belongs to the white list corresponding to the second root node In this case, the second root node sends a network access success message to the first root node, and the first root node forwards it to the target slave node.

基于上述技术方案，第一根节点接收到目标从节点的接入网络请求报文后，可以转发到第二根节点，由第一根节点及第二根节点分别在对应的白名单中查找目标从节点的身份信息，从而通过共同认证组网，将第一根节点对应的从节点及第二根节点对应的从节点在低压台区通信链路层中配置到一个拓扑网络中，这样，低压台区中的节点在通信链路上互相融通，两个节点之间的通信路径中，可以以第一根节点的从节点、第二根节点对应的从节点、第一根节点或第二根节点中的至少一项作为中继，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。Based on the above technical solution, after the first root node receives the network access request message from the target slave node, it can forward it to the second root node, and the first root node and the second root node search for the target in the corresponding white list respectively. The identity information of the slave node, so that through the joint authentication network, the slave node corresponding to the first root node and the slave node corresponding to the second root node are configured in a topology network in the communication link layer of the low-voltage station area. In this way, the low-voltage The nodes in the station area communicate with each other on the communication link. In the communication path between two nodes, the slave node of the first root node, the slave node corresponding to the second root node, the first root node or the second root node can be At least one of the nodes acts as a relay, thereby improving the communication performance of the low-voltage station area and ensuring the stable operation of the business in the low-voltage station area; at the same time, the nodes in the low-voltage station area belong to the same topology network, which is convenient for the low-voltage station area Business expansion to meet business development needs.

在一种可能的实现方式中，所述方法还包括：所述第二根节点向所述第一根节点发送所述第二根节点对应的白名单。In a possible implementation manner, the method further includes: the second root node sending a whitelist corresponding to the second root node to the first root node.

基于上述技术方案，第二根节点将第二根节点对应的白名单授权给第一根节点，以便第一根节点接收到目标从节点的接入网络请求报文后，通过在第一根节点对应的白名单及第二根节点对应的白名单中查找目标从节点的身份信息，实现认证组网。Based on the above technical solution, the second root node authorizes the white list corresponding to the second root node to the first root node, so that after the first root node receives the network access request message from the target slave node, Find the identity information of the target slave node in the corresponding white list and the white list corresponding to the second root node to realize authentication networking.

在一种可能的实现方式中，所述方法还包括：所述第二根节点接收所述第一根节点发送的所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息；所述第一根节点对应的从节点的网络信息包括：所述第一根节点对应的从节点的离线信息或所述第一根节点对应的从节点的在线信息中的至少一项；所述第一根节点对应的路由信息包括所述第一根节点与所述第一根节点对应的从节点之间的通信路径或第二路由度量值中的至少一项。In a possible implementation manner, the method further includes: the second root node receiving the network information of the slave node corresponding to the first root node sent by the first root node and/or the first The routing information corresponding to the root node; the network information of the slave node corresponding to the first root node includes: the offline information of the slave node corresponding to the first root node or the online information of the slave node corresponding to the first root node at least one item; the routing information corresponding to the first root node includes at least one item of a communication path between the first root node and a slave node corresponding to the first root node or a second routing metric value.

基于上述技术方案，第二根节点可以接收第一根节点主动发送的从节点的网络信息和/或第一根节点对应的路由信息，从而实现两个根节点之间的网络信息同步。Based on the above technical solution, the second root node can receive the network information of the slave node and/or the routing information corresponding to the first root node actively sent by the first root node, so as to realize the synchronization of network information between the two root nodes.

在一种可能的实现方式中，所述方法还包括：所述第二根节点向所述第一根节点发送获取网络信息请求报文；所述第二根节点接收所述第一根节点发送的所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息。In a possible implementation manner, the method further includes: the second root node sending a network information acquisition request message to the first root node; the second root node receiving the request message sent by the first root node The network information of the slave node corresponding to the first root node and/or the routing information corresponding to the first root node.

基于上述技术方案，第二根节点向第一根节点发起获取网络信息的请求，并接收第一根节点发送的从节点的网络信息和/或第一根节点对应的路由信息，从而实现两个根节点之间的网络信息同步。Based on the above technical solution, the second root node initiates a request to obtain network information from the first root node, and receives the network information of the slave node sent by the first root node and/or the routing information corresponding to the first root node, thereby realizing two Network information synchronization between root nodes.

在一种可能的实现方式中，所述方法还包括：所述第二根节点接收第一业务报文，所述第一业务报文中包括第一目的节点标识，其中，所述第一目的节点为所述第一根节点对应的从节点或所述第一根节点。In a possible implementation manner, the method further includes: the second root node receiving a first service packet, the first service packet including a first destination node identifier, wherein the first destination The node is a slave node corresponding to the first root node or the first root node.

基于上述技术方案，在第一根节点对应的从节点与第一根节点之间互发业务报文时，可以以第二根节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the service message is exchanged between the slave node corresponding to the first root node and the first root node, the second root node can be used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the business.

在一种可能的实现方式中，所述方法还包括：所述第二根节点接收所述第一根节点发送的第二业务报文，并将所述第二业务报文转发至目的节点，所述目的节点为所述第一根节点对应的从节点。In a possible implementation manner, the method further includes: the second root node receiving the second service packet sent by the first root node, and forwarding the second service packet to the destination node, The destination node is a slave node corresponding to the first root node.

基于上述技术方案，在第一根节点向第一根节点对应的从节点发送业务报文时，可以以第二根节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the first root node sends a service message to the slave node corresponding to the first root node, the second root node can be used as a relay to forward the service message, thereby improving communication performance and ensuring business stability run.

在一种可能的实现方式中，所述方法还包括：所述第二根节点接收第三业务报文，并将所述第三业务报文转发至所述第一根节点，所述第三业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the method further includes: the second root node receiving a third service packet, and forwarding the third service packet to the first root node, and the third The service message is a message sent to the first root node by a slave node corresponding to the first root node.

基于上述技术方案，在第一根节点对应的从节点向第一根节点发送业务报文时，以第二根节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the slave node corresponding to the first root node sends a service message to the first root node, the second root node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the service .

在一种可能的实现方式中，所述方法还包括：所述第二根节点接收所述第一根节点的带宽协商报文，所述带宽协商报文用于确定所述第二根节点所在低压台区中各待发送报文的优先级；所述第二根节点根据所确定的各待发送报文的优先级，发送所述各待发送报文。In a possible implementation manner, the method further includes: the second root node receiving a bandwidth negotiation message from the first root node, where the bandwidth negotiation message is used to determine where the second root node is located. The priority of each message to be sent in the low-voltage station area; the second root node sends each message to be sent according to the determined priority of each message to be sent.

基于上述技术方案，第二根节点与第一根节点可以进行带宽协调，并根据所确定的各待发送报文的优先级，发送各待发送报文，从而确保报文传输的实时性，避免出现网络拥塞。Based on the above technical solution, the second root node and the first root node can perform bandwidth coordination, and send each message to be sent according to the determined priority of each message to be sent, thereby ensuring the real-time performance of message transmission and avoiding There is network congestion.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别或三相不平衡治理中的至少一项；或者，所述第一根节点用于设备配置业务，所述第二根节点用于营销采集抄表业务。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification, or three-phase imbalance control; or, the first root node is used for equipment configuration services, and the second root node is used for marketing collection Meter reading business.

基于上述技术方案，可以将不同部门所管理的节点在该低压台区通信链路层中配置到一个拓扑网络中，这些节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了营销采集抄表业务及设备配置业务的稳定运行；同时，不同部门所管理的节点属于同一拓扑网络，便于扩展新的业务，从而满足业务发展需求。Based on the above technical solution, nodes managed by different departments can be configured in a topological network in the communication link layer of the low-voltage station area. These nodes communicate with each other on the communication link, thereby improving the communication performance of the low-voltage station area. It ensures the stable operation of marketing collection meter reading business and equipment configuration business; at the same time, the nodes managed by different departments belong to the same topology network, which is convenient for expanding new business, so as to meet the needs of business development.

第三方面，本申请的实施例提供了一种电力线低压台区的通信方法，所述方法包括：第一从节点向第一根节点发送接入网络请求报文，所述接入网络请求报文包括所述第一从节点的身份信息；所述第一从节点接收所述第一根节点发送的接入网络成功报文，所述接入网络成功报文为表示所述第一从节点成功接入所述第一根节点所在的低压台区的报文；其中，所述第一从节点包括所述第一根节点对应的从节点，及所述第二根节点对应的从节点。In a third aspect, an embodiment of the present application provides a communication method for a power line low-voltage station area. The method includes: a first slave node sends a network access request message to a first root node, and the network access request message The document includes the identity information of the first slave node; the first slave node receives the network access success message sent by the first root node, and the network access success message indicates that the first slave node A message for successfully accessing the low-voltage station area where the first root node is located; wherein the first slave node includes a slave node corresponding to the first root node and a slave node corresponding to the second root node.

基于上述技术方案，可以将第一根节点对应的从节点及第二根节点对应的从节点配置在低压台区通信链路层的一个拓扑网络中，低压台区中的节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。Based on the above technical solution, the slave nodes corresponding to the first root node and the slave nodes corresponding to the second root node can be configured in a topological network of the communication link layer of the low-voltage station area, and the nodes in the low-voltage station area are on the communication link Mutual integration improves the communication performance of the low-voltage station area and ensures the stable operation of the business in the low-voltage station area; at the same time, the nodes in the low-voltage station area belong to the same topology network, which is convenient for the business expansion of the low-voltage station area to meet business development need.

在一种可能的实现方式中，所述方法还包括：在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第一从节点向所述第一根节点发送所述第一从节点的网络信息，所述第一从节点的网络信息包括：所述第一从节点的离线信息或所述第一从节点的在线信息中的至少一项。In a possible implementation manner, the method further includes: when the first slave node is a slave node corresponding to the first root node, sending the first slave node to the first root node Sending the network information of the first slave node, where the network information of the first slave node includes: at least one of offline information of the first slave node or online information of the first slave node.

在一种可能的实现方式中，所述方法还包括：所述第一从节点发送第一业务报文，其中，所述第一业务报文包括第一目的节点标识和下一级节点标识；在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第一目的节点为所述第一根节点，所述第一下一级节点为所述第一根节点对应的从节点或所述第二根节点对应的从节点。In a possible implementation manner, the method further includes: the first slave node sending a first service packet, where the first service packet includes a first destination node identifier and a lower-level node identifier; When the first slave node is the slave node corresponding to the first root node, the first destination node is the first root node, and the first lower-level node is the first root node A slave node corresponding to the node or a slave node corresponding to the second root node.

基于上述技术方案，在第一从节点向第一根节点发送业务报文时，以第二根节点或第二根节点对应的从节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the first slave node sends a service message to the first root node, the second root node or the slave node corresponding to the second root node is used as a relay to forward the service message, thereby improving communication performance, Ensure the stable operation of the business.

在一种可能的实现方式中，所述方法还包括：所述第一从节点接收第二业务报文，其中，所述第二业务报文包括第二目的节点标识；在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第二目的节点为所述第二根节点或所述第二根节点对应的从节点。In a possible implementation manner, the method further includes: the first slave node receiving a second service message, wherein the second service message includes a second destination node identifier; When the node is a slave node corresponding to the first root node, the second destination node is the second root node or a slave node corresponding to the second root node.

基于上述技术方案，在第二根节点对应的从节点与第二根节点交互业务报文时，以第一从节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the slave node corresponding to the second root node exchanges service messages with the second root node, the first slave node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the business .

在一种可能的实现方式中，所述方法还包括：所述第一从节点接收所述第一根节点发送的第三业务报文，并将所述第三业务报文转发至目的节点，所述目的节点为所述第一根节点对应的从节点。In a possible implementation manner, the method further includes: the first slave node receiving a third service packet sent by the first root node, and forwarding the third service packet to a destination node, The destination node is a slave node corresponding to the first root node.

基于上述技术方案，在第一根节点向第一根节点对应的从节点发送业务报文时，以第一从节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the first root node sends a service message to the slave node corresponding to the first root node, the first slave node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the service .

在一种可能的实现方式中，所述方法还包括：所述第一从节点接收第四业务报文，并将所述第四业务报文转发至所述第一根节点，所述第四业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the method further includes: the first slave node receiving a fourth service packet, and forwarding the fourth service packet to the first root node, and the fourth The service message is a message sent to the first root node by a slave node corresponding to the first root node.

基于上述技术方案，在第一根节点对应的从节点向第一根节点发送业务报文时，以第一从节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。Based on the above technical solution, when the slave node corresponding to the first root node sends a service message to the first root node, the first slave node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the business .

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别、三相不平衡治理中的至少一项；或者，所述第一根节点用于设备配置业务，所述第二根节点用于营销采集抄表业务。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification, and three-phase imbalance management; or, the first root node is used for equipment configuration services, and the second root node is used for marketing collection Meter reading business.

基于上述技术方案，可以将低压台区中不同部门所管理的节点在该低压台区通信链路层中配置到一个拓扑网络中，这些节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了营销采集抄表业务及设备配置业务的稳定运行；同时，不同部门所管理的节点属于同一拓扑网络，便于扩展新的业务，从而满足业务发展需求。Based on the above technical solutions, the nodes managed by different departments in the low-voltage station area can be configured in a topological network in the communication link layer of the low-voltage station area. These nodes communicate with each other on the communication link, thereby improving the low-voltage station area. Excellent communication performance ensures the stable operation of marketing collection meter reading business and equipment configuration business; at the same time, the nodes managed by different departments belong to the same topology network, which facilitates the expansion of new services to meet the needs of business development.

第四方面，本申请的实施例提供了一种电力线低压台区的通信装置，包括：In the fourth aspect, the embodiments of the present application provide a communication device for a power line low-voltage station area, including:

接收模块，用于第一根节点接收目标从节点的接入网络请求报文，所述接入网络请求报文包括所述目标从节点的身份信息；组网模块，用于所述第一根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第一根节点所在的低压台区；其中，所述目标从节点包括所述第一根节点对应的从节点，及第二根节点对应的从节点。The receiving module is used for the first root node to receive the access network request message of the target slave node, and the access network request message includes the identity information of the target slave node; the networking module is used for the first root node The node determines whether the target slave node accesses the low-voltage station area where the first root node is located according to the identity information of the target slave node; wherein the target slave node includes a slave node corresponding to the first root node , and the slave nodes corresponding to the second root node.

在一种可能的实现方式中，所述组网模块，还用于：所述第一根节点在所述第一根节点对应的白名单中查找所述目标从节点的身份信息，所述第一根节点对应的白名单包括所述第一根节点对应的从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单的情况下，所述第一根节点向所述目标从节点发送接入网络成功报文；否则，所述第一根节点向所述第二根节点发送所述接入网络请求报文。In a possible implementation manner, the networking module is further configured to: the first root node searches for the identity information of the target slave node in the whitelist corresponding to the first root node, and the first root node The white list corresponding to a node includes the identity information of the slave node corresponding to the first root node; when the identity information of the target slave node belongs to the white list corresponding to the first root node, the first The root node sends a network access success message to the target slave node; otherwise, the first root node sends the network access request message to the second root node.

在一种可能的实现方式中，所述组网模块，还用于：所述第一根节点接收所述第二根节点发送的所述目标从节点的接入网络请求报文；所述第一根节点在所述第一根节点对应的白名单中查找所述目标从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单的情况下，所述第一根节点向所述第二根节点发送接入网络成功报文，并由所述第二根节点转发至所述目标从节点。In a possible implementation manner, the networking module is further configured to: the first root node receives the network access request message of the target slave node sent by the second root node; A node searches the identity information of the target slave node in the white list corresponding to the first root node; in the case that the identity information of the target slave node belongs to the white list corresponding to the first root node, the The first root node sends a network access success message to the second root node, and the second root node forwards it to the target slave node.

在一种可能的实现方式中，所述组网模块，还用于：所述第一根节点接收所述第二根节点对应的白名单；所述第二根节点对应的白名单包括所述第二根节点对应的从节点的身份信息；所述第一根节点在所述第一根节点对应的白名单及所述第二根节点对应的白名单中查找所述目标从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单或所述第二根节点对应的白名单的情况下，所述第一根节点向所述目标从节点发送接入网络成功报文。In a possible implementation manner, the networking module is further configured to: the first root node receives a whitelist corresponding to the second root node; the whitelist corresponding to the second root node includes the The identity information of the slave node corresponding to the second root node; the first root node searches for the identity information of the target slave node in the white list corresponding to the first root node and the white list corresponding to the second root node ; In the case where the identity information of the target slave node belongs to the white list corresponding to the first root node or the white list corresponding to the second root node, the first root node sends a receiving node to the target slave node Incoming network success message.

在一种可能的实现方式中，所述组网模块，还用于：所述第一根节点向所述第二根节点发送所述第一根节点对应的白名单。In a possible implementation manner, the networking module is further configured to: the first root node sends a whitelist corresponding to the first root node to the second root node.

在一种可能的实现方式中，所述装置还包括配对模块，用于：所述第一根节点监听网络中的根节点；所述网络包括至少一个低压台区；所述第一根节点在所监听到的根节点中，确定与所述第一根节点匹配的第二根节点。In a possible implementation manner, the device further includes a pairing module, configured to: the first root node listens to a root node in the network; the network includes at least one low-voltage station area; the first root node is in Among the monitored root nodes, a second root node matching the first root node is determined.

在一种可能的实现方式中，所述装置还包括同步模块，用于：所述第一根节点接收所述第一根节点对应的从节点的网络信息，所述第一根节点对应的从节点的网络信息包括：所述第一根节点对应的从节点的离线信息或所述第一根节点对应的从节点的在线信息中的至少一项；所述第一根节点根据所接收的所述第一根节点对应的从节点的网络信息，更新所述第一根节点对应的路由信息；所述第一根节点对应的路由信息包括所述第一根节点与所述第一根节点对应的从节点之间的通信路径或第一路由度量值中的至少一项；所述第一根节点向所述第二根节点发送所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息；或者，所述第一根节点接收所述第一根节点对应的从节点的网络信息；所述第一根节点根据所接收的所述第一根节点对应的从节点的网络信息，更新所述第一根节点对应的路由信息；所述第一根节点接收所述第二根节点的获取网络信息请求报文；所述第一根节点向所述第二根节点发送所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息。In a possible implementation manner, the device further includes a synchronization module, configured to: the first root node receives network information of a slave node corresponding to the first root node, and the slave node corresponding to the first root node The network information of the node includes: at least one of the offline information of the slave node corresponding to the first root node or the online information of the slave node corresponding to the first root node; The network information of the slave node corresponding to the first root node, and update the routing information corresponding to the first root node; the routing information corresponding to the first root node includes that the first root node corresponds to the first root node At least one of the communication path between the slave nodes or the first routing metric value; the first root node sends the network information of the slave node corresponding to the first root node to the second root node and/or The routing information corresponding to the first root node; or, the first root node receives the network information of the slave node corresponding to the first root node; the first root node according to the received first root node The corresponding network information of the slave node updates the routing information corresponding to the first root node; the first root node receives the network information acquisition request message of the second root node; the first root node sends the The second root node sends the network information of the slave node corresponding to the first root node and/or the routing information corresponding to the first root node.

在一种可能的实现方式中，所述装置还包括同步模块，用于：所述第一根节点接收所述第二根节点发送的所述第二根节点对应的从节点的网络信息和/或所述第二根节点对应的路由信息；所述第二根节点对应的从节点的网络信息包括：所述第二根节点对应的从节点的离线信息或所述第二根节点对应的从节点的在线信息中的至少一项；所述第二根节点对应的路由信息包括所述第二根节点与所述第二根节点对应的从节点之间的通信路径或第二路由度量值中的至少一项；或者，所述第一根节点向所述第二根节点发送获取网络信息请求报文；所述第一根节点接收所述第二根节点发送的所述第二根节点对应的从节点的网络信息和/或所述第二根节点对应的路由信息。In a possible implementation manner, the device further includes a synchronization module, configured to: the first root node receives the network information of the slave node corresponding to the second root node sent by the second root node and/or Or the routing information corresponding to the second root node; the network information of the slave node corresponding to the second root node includes: the offline information of the slave node corresponding to the second root node or the slave node corresponding to the second root node At least one of the online information of the node; the routing information corresponding to the second root node includes the communication path between the second root node and the slave node corresponding to the second root node or the second routing metric value or, the first root node sends a network information request message to the second root node; the first root node receives the second root node corresponding to the second root node sent by the second root node The network information of the slave node and/or the routing information corresponding to the second root node.

在一种可能的实现方式中，所述装置还包括业务模块，用于：所述第一根节点发送第一业务报文，所述第一业务报文中包括第一目的节点标识和下一级节点标识，其中，所述第一目的节点为所述第一根节点对应的第一从节点，所述第一从节点为所述第一根节点对应的从节点中的任一个从节点，所述第一下一级节点为所述第二根节点对应的从节点、所述第二根节点或所述第一根节点对应的第二从节点中的任一节点，所述第二从节点为所述第一根节点对应的从节点中除所述第一从节点之外的任一个从节点；或者，所述第一根节点接收第二业务报文，所述第二业务报文中包括第二目的节点标识，其中，所述第二目的节点为所述第二根节点对应的从节点或所述第二根节点。In a possible implementation manner, the device further includes a service module, configured to: the first root node sends a first service message, and the first service message includes the first destination node identifier and the next A level node identifier, wherein the first destination node is the first slave node corresponding to the first root node, and the first slave node is any one of the slave nodes corresponding to the first root node, The first lower-level node is any one of the slave node corresponding to the second root node, the second root node, or the second slave node corresponding to the first root node, and the second slave The node is any slave node other than the first slave node among the slave nodes corresponding to the first root node; or, the first root node receives a second service message, and the second service message includes a second destination node identifier, where the second destination node is a slave node corresponding to the second root node or the second root node.

在一种可能的实现方式中，所述业务模块，还用于：在所述第一根节点无法获取到达目的节点的路由信息的情况下，所述第一根节点将第三业务报文发送给所述第二根节点，并由所述第二根节点转发至所述目的节点；所述目的节点为所述第一根节点对应的从节点；或者，所述第一根节点接收所述第二根节点转发的第四业务报文，所述第四业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the service module is further configured to: in the case that the first root node cannot obtain the routing information to the destination node, the first root node sends the third service message to the second root node, and forwarded to the destination node by the second root node; the destination node is the slave node corresponding to the first root node; or, the first root node receives the A fourth service message forwarded by the second root node, where the fourth service message is a message sent to the first root node by a slave node corresponding to the first root node.

在一种可能的实现方式中，所述业务模块，还用于：所述第一根节点将第五业务报文发送给所述第二根节点对应的从节点，并由所述第二根节点对应的从节点转发至目的节点；所述目的节点为所述第一根节点对应的从节点；或者，所述第一根节点接收所述第二根节点对应的从节点转发的第六业务报文，所述第六业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the service module is further configured to: the first root node sends the fifth service message to the slave node corresponding to the second root node, and the second root node The slave node corresponding to the node is forwarded to the destination node; the destination node is the slave node corresponding to the first root node; or, the first root node receives the sixth service forwarded by the slave node corresponding to the second root node message, the sixth service message is a message sent to the first root node by a slave node corresponding to the first root node.

在一种可能的实现方式中，所述装置还包括流量控制模块，用于：所述第一根节点监听所述第一根节点所在低压台区中的流量信息；所述流量信息包括单位时间监听到的所述第一根节点所在低压台区的报文总量；在所述流量信息满足预设条件的情况下，所述第一根节点向所述第二根节点发送带宽协商报文；所述带宽协商报文用于确定所述第一根节点所在低压台区中各待发送报文的优先级；所述第一根节点根据所述各待发送报文的优先级，发送所述各待发送报文；或者，所述第一根节点接收所述第二根节点的带宽协商报文，所述带宽协商报文用于确定所述第一根节点所在低压台区中各待发送报文的优先级；所述第一根节点根据所确定的各待发送报文的优先级，发送所述各待发送报文。In a possible implementation manner, the device further includes a flow control module, configured to: the first root node monitors flow information in the low-voltage platform area where the first root node is located; the flow information includes unit time The total amount of monitored messages in the low-voltage station area where the first root node is located; when the flow information meets the preset conditions, the first root node sends a bandwidth negotiation message to the second root node ; The bandwidth negotiation message is used to determine the priority of each message to be sent in the low-voltage station area where the first root node is located; the first root node sends the priority of each message to be sent according to the priority of the message to be sent each of the messages to be sent; or, the first root node receives the bandwidth negotiation message of the second root node, and the bandwidth negotiation message is used to determine the The priority of the message to be sent: the first root node sends each message to be sent according to the determined priority of the message to be sent.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别或三相不平衡治理中的至少一项。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification or at least one of three-phase unbalance treatment.

上述第四方面及第四方面的各种可能的实现方式的技术效果，参见上述第一方面及第一方面的各种可能的实现方式的技术效果。For the above fourth aspect and the technical effects of various possible implementations of the fourth aspect, refer to the above first aspect and the technical effects of various possible implementations of the first aspect.

第五方面，本申请的实施例提供了一种电力线低压台区的通信装置，包括：接收模块，用于第二根节点接收目标从节点的接入网络请求报文，所述接入网络请求报文包括所述目标从节点的身份信息；组网模块，用于所述第二根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第二根节点所在的低压台区；其中，所述目标从节点包括所述第二根节点对应的从节点，及第一根节点对应的从节点。In the fifth aspect, an embodiment of the present application provides a communication device for a power line low-voltage station area, including: a receiving module, configured for a second root node to receive a network access request message from a target slave node, and the network access request The message includes the identity information of the target slave node; the networking module is used for the second root node to determine whether the target slave node is connected to the second root node according to the identity information of the target slave node The low-voltage platform area; wherein, the target slave node includes a slave node corresponding to the second root node, and a slave node corresponding to the first root node.

在一种可能的实现方式中，所述组网模块，还用于：所述第二根节点接收所述第一根节点发送的所述目标从节点的接入网络请求报文；所述第二根节点在所述第二根节点对应的白名单中查找所述目标从节点的身份信息；所述第二根节点对应的白名单包括所述第二根节点对应的从节点的身份信息；在所述目标从节点的身份信息属于所述第二根节点对应的白名单的情况下，所述第二根节点向所述第一根节点发送接入网络成功报文，并由所述第一根节点转发至所述目标从节点。In a possible implementation manner, the networking module is further configured to: the second root node receives the network access request message of the target slave node sent by the first root node; The second root node searches for the identity information of the target slave node in the white list corresponding to the second root node; the white list corresponding to the second root node includes the identity information of the slave node corresponding to the second root node; When the identity information of the target slave node belongs to the white list corresponding to the second root node, the second root node sends a network access success message to the first root node, and the second root node sends A node forwards to the target slave node.

在一种可能的实现方式中，所述组网模块，还用于：所述第二根节点向所述第一根节点发送所述第二根节点对应的白名单。In a possible implementation manner, the networking module is further configured to: the second root node sends a whitelist corresponding to the second root node to the first root node.

在一种可能的实现方式中，所述装置还包括同步模块，用于：所述第二根节点接收所述第一根节点发送的所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息；所述第一根节点对应的从节点的网络信息包括：所述第一根节点对应的从节点的离线信息或所述第一根节点对应的从节点的在线信息中的至少一项；所述第一根节点对应的路由信息包括所述第一根节点与所述第一根节点对应的从节点之间的通信路径或第二路由度量值中的至少一项；或者，所述第二根节点向所述第一根节点发送获取网络信息请求报文；所述第二根节点接收所述第一根节点发送的所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息。In a possible implementation manner, the device further includes a synchronization module, configured to: the second root node receives the network information of the slave node corresponding to the first root node sent by the first root node and/or Or the routing information corresponding to the first root node; the network information of the slave node corresponding to the first root node includes: the offline information of the slave node corresponding to the first root node or the slave node corresponding to the first root node At least one of the online information of the node; the routing information corresponding to the first root node includes the communication path between the first root node and the slave node corresponding to the first root node or the second routing metric value or, the second root node sends an acquisition network information request message to the first root node; the second root node receives the first root node corresponding to the first root node sent by the first root node The network information of the slave node and/or the routing information corresponding to the first root node.

在一种可能的实现方式中，所述装置还包括业务模块，用于：所述第二根节点接收第一业务报文，所述第一业务报文中包括第一目的节点标识，其中，所述第一目的节点为所述第一根节点对应的从节点或所述第一根节点。In a possible implementation manner, the device further includes a service module, configured to: the second root node receives a first service message, and the first service message includes a first destination node identifier, wherein, The first destination node is a slave node corresponding to the first root node or the first root node.

在一种可能的实现方式中，所述业务模块，还用于：所述第二根节点接收所述第一根节点发送的第二业务报文，并将所述第二业务报文转发至目的节点，所述目的节点为所述第一根节点对应的从节点；或者，所述第二根节点接收第三业务报文，并将所述第三业务报文转发至所述第一根节点，所述第三业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the service module is further configured to: the second root node receives the second service message sent by the first root node, and forwards the second service message to a destination node, where the destination node is a slave node corresponding to the first root node; or, the second root node receives a third service message and forwards the third service message to the first root node node, the third service message is a message sent to the first root node by a slave node corresponding to the first root node.

在一种可能的实现方式中，所述装置还包括流量控制模块，用于：所述第二根节点接收所述第一根节点的带宽协商报文，所述带宽协商报文用于确定所述第二根节点所在低压台区中各待发送报文的优先级；所述第二根节点根据所确定的各待发送报文的优先级，发送所述各待发送报文。In a possible implementation manner, the device further includes a flow control module, configured to: the second root node receives the bandwidth negotiation message of the first root node, and the bandwidth negotiation message is used to determine the The priority of each message to be sent in the low-voltage station area where the second root node is located; the second root node sends each message to be sent according to the determined priority of each message to be sent.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别或三相不平衡治理中的至少一项；或者，所述第一根节点用于设备配置业务，所述第二根节点用于营销采集抄表业务。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification, or three-phase imbalance control; or, the first root node is used for equipment configuration services, and the second root node is used for marketing collection Meter reading business.

上述第五方面及第五方面的各种可能的实现方式的技术效果，参见上述第二方面及第二方面的各种可能的实现方式的技术效果。For the above fifth aspect and the technical effects of various possible implementations of the fifth aspect, refer to the above second aspect and the technical effects of various possible implementations of the second aspect.

第六方面，本申请的实施例提供了一种电力线低压台区的通信装置，包括：发送模块，用于第一从节点向第一根节点发送接入网络请求报文，所述接入网络请求报文包括所述第一从节点的身份信息；入网模块，用于所述第一从节点接收所述第一根节点发送的接入网络成功报文，所述接入网络成功报文为表示所述第一从节点成功接入所述第一根节点所在的低压台区的报文；其中，所述第一从节点包括所述第一根节点对应的从节点，及所述第二根节点对应的从节点。In a sixth aspect, an embodiment of the present application provides a communication device for a power line low-voltage station area, including: a sending module, configured for a first slave node to send an access network request message to a first root node, and the access network The request message includes the identity information of the first slave node; the network access module is used for the first slave node to receive the network access success message sent by the first root node, and the network access success message is A message indicating that the first slave node has successfully accessed the low-voltage station area where the first root node is located; wherein, the first slave node includes a slave node corresponding to the first root node, and the second The slave node corresponding to the root node.

在一种可能的实现方式中，所述装置还包括上报模块，用于在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第一从节点向所述第一根节点发送所述第一从节点的网络信息，所述第一从节点的网络信息包括：所述第一从节点的离线信息或所述第一从节点的在线信息中的至少一项。In a possible implementation manner, the device further includes a reporting module, configured to report the first slave node to the The first root node sends the network information of the first slave node, and the network information of the first slave node includes: at least one of offline information of the first slave node or online information of the first slave node .

在一种可能的实现方式中，所述装置还包括业务模块，用于所述第一从节点发送第一业务报文，其中，所述第一业务报文包括第一目的节点标识和下一级节点标识；在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第一目的节点为所述第一根节点，所述第一下一级节点为所述第一根节点对应的从节点或所述第二根节点对应的从节点；或者，所述第一从节点接收第二业务报文，其中，所述第二业务报文包括第二目的节点标识；在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第二目的节点为所述第二根节点或所述第二根节点对应的从节点。In a possible implementation manner, the device further includes a service module, configured for the first slave node to send a first service message, where the first service message includes the first destination node identifier and the next level node identifier; in the case where the first slave node is the slave node corresponding to the first root node, the first destination node is the first root node, and the first lower-level node is the first The slave node corresponding to the first root node or the slave node corresponding to the second root node; or, the first slave node receives a second service message, wherein the second service message includes the second destination node Identification; when the first slave node is the slave node corresponding to the first root node, the second destination node is the second root node or the slave node corresponding to the second root node.

在一种可能的实现方式中，所述业务模块，还用于：所述第一从节点接收所述第一根节点发送的第三业务报文，并将所述第三业务报文转发至目的节点，所述目的节点为所述第一根节点对应的从节点；或者，所述第一从节点接收第四业务报文，并将所述第四业务报文转发至所述第一根节点，所述第四业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the service module is further configured to: the first slave node receives the third service message sent by the first root node, and forwards the third service message to a destination node, where the destination node is a slave node corresponding to the first root node; or, the first slave node receives a fourth service message and forwards the fourth service message to the first root node node, the fourth service message is a message sent to the first root node by a slave node corresponding to the first root node.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别、三相不平衡治理中的至少一项；或者，所述第一根节点用于设备配置业务，所述第二根节点用于营销采集抄表业务。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification, and three-phase imbalance management; or, the first root node is used for equipment configuration services, and the second root node is used for marketing collection Meter reading business.

上述第六方面及第六方面的各种可能的实现方式的技术效果，参见上述第三方面及第三方面的各种可能的实现方式的技术效果。For the above sixth aspect and the technical effects of various possible implementations of the sixth aspect, refer to the above third aspect and the technical effects of various possible implementations of the third aspect.

第七方面，本申请的实施例提供了一种电力线低压台区的通信装置，包括：处理器和传输接口；所述处理器通过所述传输接口接收或发送数据；所述处理器被配置为执行存储在存储器中的指令时实现上述第一方面或者第一方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法，或实现上述第二方面或者第二方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法，或实现上述第三方面或者第三方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法。In the seventh aspect, an embodiment of the present application provides a communication device for a power line low-voltage station area, including: a processor and a transmission interface; the processor receives or sends data through the transmission interface; the processor is configured to When the instructions stored in the memory are executed, one or more of the above-mentioned first aspect or one or more of the multiple possible implementations of the first aspect is implemented, or the communication method of the above-mentioned second aspect or the second aspect is realized. One or several of the multiple possible implementations of the communication method of the power line low-voltage station area, or the realization of the above third aspect or one or more of the multiple possible implementations of the third aspect of the power line low-voltage The communication method of the station area.

第八方面，本申请的实施例提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序指令，当所述计算机程序指令被计算机或处理器执行时实现上述第一方面或者第一方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法，或实现上述第二方面或者第二方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法，或实现上述第三方面或者第三方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法。In an eighth aspect, the embodiments of the present application provide a computer-readable storage medium, on which computer program instructions are stored, and when the computer program instructions are executed by a computer or a processor, the above-mentioned first Aspect or one or several of the multiple possible implementations of the first aspect, the communication method for the power line low-voltage station area, or one or more of the above-mentioned second aspect or the multiple possible implementations of the second aspect Several communication methods for low-voltage power line areas, or one or more communication methods for low-voltage power line areas to achieve the third aspect or one or more of the multiple possible implementations of the third aspect.

第九方面，本申请的实施例提供了一种包含指令的计算机程序产品，当所述指令在计算机或处理器上运行时，使得所述计算机或所述处理器执行上述第一方面或者第一方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法，或实现上述第二方面或者第二方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法，或实现上述第三方面或者第三方面的多种可能的实现方式中的一种或几种的电力线低压台区的通信方法。In the ninth aspect, the embodiments of the present application provide a computer program product containing instructions. When the instructions are run on a computer or a processor, the computer or the processor executes the above-mentioned first aspect or the first One or more of the multiple possible implementations of the aspect, the communication method of the power line low-voltage station area, or the power line that realizes the above-mentioned second aspect or one or more of the multiple possible implementations of the second aspect A communication method for a low-voltage station area, or a communication method for a power line low-voltage station area that implements the third aspect or one or more of the multiple possible implementations of the third aspect.

上述第七方面、第八方面及第九方面的技术效果，参见上述第一方面及第一方面的各种可能的实现方式的技术效果，或者上述第二方面及第二方面的各种可能的实现方式的技术效果，或者上述第三方面及第三方面的各种可能的实现方式的技术效果。For the technical effects of the seventh, eighth, and ninth aspects above, refer to the technical effects of the above-mentioned first aspect and various possible implementations of the first aspect, or the various possible implementations of the above-mentioned second aspect and the second aspect The technical effect of the implementation manner, or the technical effect of the above third aspect and various possible implementation manners of the third aspect.

附图说明Description of drawings

包含在说明书中并且构成说明书的一部分的附图与说明书一起示出了本申请的示例性实施例、特征和方面，并且用于解释本申请的原理。The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the specification, serve to explain the principles of the application.

图1示出了本申请一实施例中的一种低压台区分布的示意图。Fig. 1 shows a schematic diagram of distribution of low-voltage platforms in an embodiment of the present application.

图2示出了上述图1中低压台区1物理拓扑图。FIG. 2 shows a physical topological diagram of the low-voltage platform area 1 in the above-mentioned FIG. 1 .

图3示出了上述图1中低压台区1的通信链路层的两个拓扑网络的示意图。FIG. 3 shows a schematic diagram of two topological networks of the communication link layer of the low-voltage station area 1 in the above-mentioned FIG. 1 .

图4示出了本申请一实施例的一种电力线低压台区的通信方法的流程图。Fig. 4 shows a flow chart of a communication method for a power line low-voltage station area according to an embodiment of the present application.

图5示出了本申请一实施例的一种根节点配对的流程图。Fig. 5 shows a flowchart of root node pairing according to an embodiment of the present application.

图6示出了图1中的低压台区1中根节点配对的示意图。FIG. 6 shows a schematic diagram of the pairing of root nodes in the low-voltage platform area 1 in FIG. 1 .

图7示出了本申请一实施例的一种认证组网的流程图。FIG. 7 shows a flowchart of an authentication networking according to an embodiment of the present application.

图8示出了本申请一实施例的另一种认证组网的流程图。FIG. 8 shows a flow chart of another authentication networking according to an embodiment of the present application.

图9示出了本申请一实施例的另一种认证组网的流程图。FIG. 9 shows a flowchart of another authentication networking according to an embodiment of the present application.

图10示出了本申请一实施例中构建的图1中的低压台区1的通信链路层的一个网络拓扑的示意图。FIG. 10 shows a schematic diagram of a network topology of the communication link layer of the low-voltage station area 1 in FIG. 1 constructed in an embodiment of the present application.

图11示出了本申请一实施例的一种同步网络信息的流程图。Fig. 11 shows a flow chart of synchronizing network information according to an embodiment of the present application.

图12示出了本申请一实施例的另一种同步网络信息的流程图。Fig. 12 shows another flow chart of synchronizing network information according to an embodiment of the present application.

图13示出了本申请一实施例的一种进行业务通信的流程图。Fig. 13 shows a flow chart of performing business communication according to an embodiment of the present application.

图14示出了本申请一实施例的另一种进行业务通信的流程图。Fig. 14 shows another flow chart of performing service communication according to an embodiment of the present application.

图15a示出了图1中的低压台区1中节点间一种进行业务通信的示意图。FIG. 15a shows a schematic diagram of service communication between nodes in the low-voltage station area 1 in FIG. 1 .

图15b示出了图1中的低压台区1中节点间另一种进行业务通信的示意图。FIG. 15b shows another schematic diagram of service communication between nodes in the low-voltage station area 1 in FIG. 1 .

图16示出了本申请一实施例的另一种进行业务通信的流程图。Fig. 16 shows another flow chart of performing business communication according to an embodiment of the present application.

图17示出了本申请一实施例的另一种进行业务通信的流程图。Fig. 17 shows another flow chart of performing service communication according to an embodiment of the present application.

图18a示出了图1中的低压台区1中节点间另一种进行业务通信的示意图。FIG. 18a shows another schematic diagram of service communication between nodes in the low-voltage station area 1 in FIG. 1 .

图18b示出了图1中的低压台区1中节点间另一种进行业务通信的示意图。FIG. 18b shows another schematic diagram of service communication between nodes in the low-voltage station area 1 in FIG. 1 .

图19示出了本申请一实施例的一种进行带宽协调的流程图。Fig. 19 shows a flow chart of bandwidth coordination according to an embodiment of the present application.

图20示出了本申请一实施例的一种电力线低压台区的通信装置的结构示意图。Fig. 20 shows a schematic structural diagram of a communication device in a power line low-voltage station area according to an embodiment of the present application.

图21示出了本申请实施例的另一种电力线低压台区的通信装置的结构示意图。FIG. 21 shows a schematic structural diagram of another communication device in a power line low-voltage station area according to an embodiment of the present application.

图22示出了本申请实施例的另一种电力线低压台区的通信装置的结构示意图。FIG. 22 shows a schematic structural diagram of another communication device in a power line low-voltage station area according to an embodiment of the present application.

图23示出了本申请实施例的另一种电力线低压台区的通信装置的结构示意图。Fig. 23 shows a schematic structural diagram of another communication device in a power line low-voltage station area according to an embodiment of the present application.

具体实施方式Detailed ways

以下将参考附图详细说明本申请的各种示例性实施例、特征和方面。附图中相同的附图标记表示功能相同或相似的元件。尽管在附图中示出了实施例的各种方面，但是除非特别指出，不必按比例绘制附图。Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

在这里专用的词“示例性”意为“用作例子、实施例或说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

应当理解，在本申请中，“至少一个(项)”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系，例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b或c中的至少一项(个)，可以表示：a，b，c，“a和b”，“a和c”，“b和c”，或“a和b和c”，其中a，b，c可以是单个，也可以是多个。It should be understood that in this application, "at least one (item)" means one or more, and "multiple" means two or more. "And/or" is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, "A and/or B" can mean: only A exists, only B exists, and A and B exist at the same time , where A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c ", where a, b, c can be single or multiple.

另外，为了更好的说明本申请，在下文的具体实施方式中给出了众多的具体细节。本领域技术人员应当理解，没有某些具体细节，本申请同样可以实施。在一些实例中，对于本领域技术人员熟知的方法、手段、元件和电路未作详细描述，以便于凸显本申请的主旨。In addition, in order to better illustrate the present application, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present application may be practiced without certain of the specific details. In some instances, methods, means, components and circuits well known to those skilled in the art have not been described in detail in order to highlight the gist of the present application.

为了便于对本申请实施例的理解，下面首先对本申请实施例涉及的一些概念进行介绍。In order to facilitate the understanding of the embodiments of the present application, some concepts involved in the embodiments of the present application are firstly introduced below.

在电力网络中，通过高压输电线将电力输送到各个地方，经过一个个变压器，可以将高压电转换为低压电，并通过低压配电网络输送到用户；其中，每台变压器下带的，由一个或多个节点组成的低压配电网络，可以称为一个低压电力台区，也称低压台区。同一低压台区中的节点通过电力线彼此相连，其中，位于通信链路层的同一拓扑网络中的节点，彼此之间可以互相通信，位于通信链路层的不同拓扑网络中的节点，彼此之间不能进行通信。In the power network, the power is transmitted to various places through high-voltage transmission lines, and the high-voltage power can be converted into low-voltage power through transformers one by one, and then transmitted to users through the low-voltage power distribution network; among them, each transformer is equipped with, A low-voltage power distribution network composed of one or more nodes can be called a low-voltage power station area, also known as a low-voltage station area. Nodes in the same low-voltage station area are connected to each other through power lines. Among them, nodes in the same topology network at the communication link layer can communicate with each other, and nodes in different topology networks at the communication link layer can communicate with each other. Cannot communicate.

图1示出了本申请一实施例中的一种低压台区分布的示意图，高压输电线上的高压电经变压器转换为低压电，不同变压器下带的低压台区如图1所示，即低压台区1、低压台区2、低压台区3…等等，其中，每一低压台区中可以包括至少一个根节点及至少一个从节点，不同低压台区中根节点和/或从节点的数量可以不同，如图1所示，低压台区1中可以包括根节点CCO1、CCO2，从节点STA1、STA2、STA3…等；低压台区2中可以包括根节点CCO3、CCO4，从节点STA4、STA5、STA6、STA7…等；低压台区3中可以包括根节点CCO5、CCO6、CCO7，从节点STA8、STA9、STA10…等。Fig. 1 shows a schematic diagram of the distribution of a low-voltage station area in an embodiment of the present application. The high-voltage electricity on the high-voltage transmission line is converted into low-voltage electricity through a transformer. The low-voltage station areas under different transformers are shown in Figure 1. That is, low-voltage platform area 1, low-voltage platform area 2, low-voltage platform area 3...etc., wherein, each low-voltage platform area can include at least one root node and at least one slave node, and the root node and/or slave node in different low-voltage platform areas The number can be different, as shown in Figure 1, low-voltage station area 1 can include root nodes CCO1, CCO2, slave nodes STA1, STA2, STA3...etc.; low-voltage station area 2 can include root nodes CCO3, CCO4, slave node STA4 , STA5, STA6, STA7...etc.; the low-voltage station area 3 may include root nodes CCO5, CCO6, CCO7, slave nodes STA8, STA9, STA10...etc.

其中，根节点，又称主节点、头端节点、中央协调器(Central Coordinator，CCO)等，示例性地，根节点可以包括集中器(或能源控制器)、融合终端等设备，还可以包括电力线载波(Power Line Carrier，PLC)通信模块或装置，该PLC通信模块或装置可以独立设置，也可以集成在集中器、融合终端等设备中。根节点作为每个低压台区的总代理，可以通过光纤专网/无线公网与主站(电力局服务器)通信，并接受主站的管理；还可以通过PLC网络与低压台区内与其对应的从节点通信，实现对低压台区内从节点的业务管理和数据监测。Among them, the root node is also called master node, head-end node, central coordinator (Central Coordinator, CCO), etc. Exemplarily, the root node may include concentrators (or energy controllers), fusion terminals and other devices, and may also include A power line carrier (Power Line Carrier, PLC) communication module or device. The PLC communication module or device can be set independently, or integrated in concentrators, fusion terminals and other devices. As the general agent of each low-voltage station area, the root node can communicate with the main station (power bureau server) through the optical fiber private network/wireless public network, and accept the management of the master station; it can also communicate with the low-voltage station area through the PLC network The slave node communication realizes the business management and data monitoring of the slave nodes in the low-voltage station area.

从节点，也称站点(Station，STA)，示例性地，从节点可以包括智能断路器开关、电能表、采集器、电力线路故障指示器(简称故指)、无功补偿器、计量表计等设备；还可以包括PLC通信模块或装置，该PLC通信模块或装置可以集成在智能断路器开关、电能表、采集器、电力线路故障指示器等设备中，也可以独立设置，并可以通过RS232、RS485、串口、串行外设接口(serial peripheral interface，SPI)等中的任一种与智能断路器开关、电能表、采集器、电力线路故障指示器等设备内部通信。从节点可以通过PLC网络与低压台区内与其对应的根节点通信，并可以接受根节点的控制及管理；进一步地，从节点还可以具有电能、功率、电压、电流等数据的采集和上报能力，可以接收根节点下发的控制或采集指令，并进行数据的采集和上报；还可以具有故障、报警、操作等运行维护参数的记录及上报功能，从而使线路免受过载、短路、接地/漏电、电流不平衡、过/欠压等故障的危害。Slave nodes, also called stations (Stations, STAs), exemplarily, slave nodes can include intelligent circuit breaker switches, electric energy meters, collectors, power line fault indicators (referred to as finger), reactive power compensators, meter meters and other equipment; it can also include PLC communication modules or devices, which can be integrated in intelligent circuit breaker switches, electric energy meters, collectors, power line fault indicators, etc. , RS485, serial port, serial peripheral interface (serial peripheral interface, SPI), etc., communicate with devices such as intelligent circuit breaker switches, electric energy meters, collectors, and power line fault indicators. The slave node can communicate with the corresponding root node in the low-voltage station area through the PLC network, and can accept the control and management of the root node; further, the slave node can also have the ability to collect and report data such as electric energy, power, voltage, current, etc. , can receive the control or collection instructions issued by the root node, and collect and report data; it can also record and report operation and maintenance parameters such as faults, alarms, and operations, so as to protect the line from overload, short circuit, grounding/ Leakage, current imbalance, over/under voltage and other fault hazards.

为了便于描述，下面以图1中所示的低压台区1为例，对相关技术中方案及本申请实施例提供的电力线低压台区的通信方法进行说明。For ease of description, the following uses the low-voltage station area 1 shown in FIG. 1 as an example to describe the solution in the related art and the communication method for the power line low-voltage station area provided by the embodiment of the present application.

图2示出了上述图1中低压台区1物理拓扑图。如图2所示，在低压台区1中包括两个根节点，即CCO1及CCO2，其中，根节点CCO1可以为集中器、根节点CCO2可以为融合终端；还包括多个从节点STA1、STA2、STA3…，如入线开关、出线开关、分支开关、故指、表前开关、电能表、无功补偿器、计量表计等等，其中，入线开关、出线开关、分支开关、表前开关均可以为智能断路器开关。可以理解的是，图2中低压台区1中根节点与从节点的数量，以及根节点与从节点的类型等仅为示例，实际应用中可以进行灵活配置，本申请实施例对此不作限定。FIG. 2 shows a physical topological diagram of the low-voltage platform area 1 in the above-mentioned FIG. 1 . As shown in Figure 2, there are two root nodes in the low-voltage station area 1, namely CCO1 and CCO2, where the root node CCO1 can be a concentrator, and the root node CCO2 can be a fusion terminal; it also includes multiple slave nodes STA1 and STA2 , STA3..., such as incoming line switch, outgoing line switch, branch switch, fault finger, front switch, electric energy meter, reactive power compensator, meter, etc., among them, incoming line switch, outgoing line switch, branch switch, front of meter All switches can be intelligent circuit breaker switches. It can be understood that the number of root nodes and slave nodes and the types of root nodes and slave nodes in the low-voltage station area 1 in FIG.

低压台区1中的根节点及主节点一般归属于营销部或设备部，其中，用户侧的电能表、表前开关，及台变侧的集中器、计量表计归属于营销部，这些设备组成了营销采集抄表网络，主站及集中器管理该网络中的各从节点，这些从节点即为集中器对应的从节点；线路侧的分支开关、故指，及台变侧的融合终端、入线开关、出线开关、无功补偿器、漏电保护器等设备归属于设备部，这些设备组成了设备配置网络，主站及融合终端管理该网络中的各从节点，这些从节点即为融合终端对应的从节点。The root node and main node in the low-voltage station area 1 generally belong to the marketing department or the equipment department. Among them, the electric energy meter and the switch in front of the meter on the user side, and the concentrator and the meter on the transformer side belong to the marketing department. The marketing collection meter reading network is formed. The master station and the concentrator manage the slave nodes in the network. These slave nodes are the slave nodes corresponding to the concentrator; the branch switch and fault finger on the line side, and the fusion terminal on the transformer side , incoming line switch, outgoing line switch, reactive power compensator, leakage protector and other equipment belong to the equipment department. These equipment form the equipment configuration network. The master station and the fusion terminal manage the slave nodes in the network. These slave nodes are The slave node corresponding to the fusion terminal.

相关技术中，通过同频双网、异频双网、异构双网等方式，将营销采集抄表网络及设备配置网络在低压台区的通信链路层组建为两张彼此独立的拓扑网络。图3示出了上述图1中低压台区1的通信链路层的两个拓扑网络的示意图。如图3所示，营销采集抄表网络与设备配置网络彼此独立，其中，营销采集抄表网络可以包括根节点CC01及其对应的从节点STA1、STA2、STA3、STA4、STA5、STA6；设备配置网络可以包括根节点CCO2及其对应的从节点STA1*、STA2*、STA3*、STA4*、STA5*、STA6*。In related technologies, through the same frequency dual network, different frequency dual network, heterogeneous dual network, etc., the marketing collection meter reading network and equipment configuration network are formed into two independent topological networks at the communication link layer of the low-voltage station area . FIG. 3 shows a schematic diagram of two topological networks of the communication link layer of the low-voltage station area 1 in the above-mentioned FIG. 1 . As shown in Figure 3, the marketing collection meter reading network and the equipment configuration network are independent of each other, wherein the marketing collection meter reading network may include the root node CC01 and its corresponding slave nodes STA1, STA2, STA3, STA4, STA5, STA6; the equipment configuration The network may include a root node CCO2 and its corresponding slave nodes STA1*, STA2*, STA3*, STA4*, STA5*, STA6*.

其中，在同频双网方式中，图3中的营销采集抄表网络及设备配置网络的通信频段相同、通信协议相同，CC01、CCO2、STA1、STA1*等节点通过载波通信报文中的帧控制域“网络类型”区分不同的网络。在异频双网方式中，图3中的营销采集抄表网络及设备配置网络的通信频段不同、通信协议相同；营销采集抄表网络通信频段可以为0.7～3MHz，设备配置网络的通信频段可以为3～4.2MHz，CC01、STA1等节点与CCO2、STA1*等节点运行不同的通信频段，从而将两个网络进行隔离。在异构双网方式中，图3中的营销采集抄表网络及设备配置网络的通信频段、通信协议均不相同；营销采集抄表网络中通信协议可以为国网宽带载波协议，通信频段可以为0.7～3MHz，设备配置网络中通信协议可以为G3协议，通信频段可以为200～500kHz。Among them, in the same-frequency dual-network mode, the communication frequency bands and communication protocols of the marketing collection meter reading network and equipment configuration network in Figure 3 are the same, and the nodes such as CC01, CCO2, STA1, STA1* pass the frame in the carrier communication message The control field "network type" distinguishes different networks. In the different-frequency dual-network mode, the communication frequency bands of the marketing collection meter reading network and the equipment configuration network in Figure 3 are different, and the communication protocols are the same; the communication frequency band of the marketing collection meter reading network can be 0.7~3MHz, and the communication frequency band of the equipment configuration network can be 3-4.2MHz, CC01, STA1 and other nodes and CCO2, STA1* and other nodes run different communication frequency bands, thus isolating the two networks. In the heterogeneous dual network mode, the communication frequency bands and communication protocols of the marketing collection meter reading network and the equipment configuration network in Figure 3 are different; the communication protocol in the marketing collection meter reading network can be the national network broadband carrier protocol, and the communication frequency band can be 0.7~3MHz, the communication protocol in the device configuration network can be G3 protocol, and the communication frequency band can be 200~500kHz.

然而，上述同频双网、异频双网、异构双网等方式中，营销采集抄表网络及设备配置网络中的节点在通信链路上互不融通，在通信时无法互为中继，影响了低压台区的通信性能；例如，如图3所示，根节点CC01在与其对应的从节点STA6进行通信时，仅能通过通信路径CCO1->STA1->STA2->STA5->STA6，即以营销采集抄表网络中的节点作为中继，由于根节点CC01与从节点STA6之间的通信路径较长，信道衰减和噪声较大，通信稳定性和可靠性较差，同时，无法以设备配置网络中的节点作为中继，增大了根节点CC01与从节点STA6之间的通信时延，影响了低压台区的通信性能，无法保证低压台区中业务的稳定运行。However, in the above-mentioned methods such as dual networks with the same frequency, dual networks with different frequencies, and heterogeneous dual networks, the nodes in the marketing collection meter reading network and the equipment configuration network are not compatible with each other on the communication link, and cannot be mutually relayed during communication. , which affects the communication performance of the low-voltage station area; for example, as shown in Figure 3, when the root node CC01 communicates with its corresponding slave node STA6, it can only pass through the communication path CCO1->STA1->STA2->STA5->STA6 , that is, the nodes in the marketing collection meter reading network are used as relays. Due to the long communication path between the root node CC01 and the slave node STA6, the channel attenuation and noise are large, and the communication stability and reliability are poor. At the same time, it is impossible to Using nodes in the device configuration network as relays increases the communication delay between the root node CC01 and the slave node STA6, affects the communication performance of the low-voltage station area, and cannot guarantee the stable operation of services in the low-voltage station area.

同时，上述营销采集抄表网络及设备配置网络中的节点位于同一台区，在通信链路层分属于两个拓扑网络，不利于低压台区的业务扩展；例如，若图3中的从节点STA2为图2中的表前开关，从节点STA5*为与该表前开关位于同一分支的分支开关；在基于信道特征对图3中低压台区1进行线路分支识别时，由于从节点STA2与从节点STA5*在通信链路上不互通，通过两者之间的信道特征难以分辨两者位于同一分支，从而难以开展精准的线路分支识别业务。At the same time, the nodes in the above-mentioned marketing collection meter reading network and equipment configuration network are located in the same station area, and belong to two topological networks at the communication link layer, which is not conducive to the business expansion of the low-voltage station area; for example, if the slave node in Figure 3 STA2 is the switch in front of the meter in Figure 2, and the slave node STA5* is a branch switch located in the same branch as the switch in front of the meter; when identifying the line branch of the low-voltage station area 1 in Figure 3 based on the channel characteristics, because the slave node STA2 and The slave node STA5* does not communicate with each other on the communication link, and it is difficult to distinguish that the two are located in the same branch through the channel characteristics between the two, so it is difficult to carry out accurate line branch identification services.

为了解决上述技术问题，本申请提供了一种电力线低压台区的通信方法(具体描述参见下文)，示例性地，可以通过对上述图1中的低压台区1的根节点和/或从节点配置执行本申请实施例的电力线低压台区的通信方法，将低压台区1中的节点在低压台区通信链路层中配置到一个拓扑网络中，各节点在通信链路上互相融通，从而提升了低压台区1的通信性能，确保了低压台区1中业务的稳定运行；同时，低压台区1中的节点归属于同一拓扑网络，有利于低压台区1的业务扩展，满足业务发展需求。In order to solve the above technical problems, the present application provides a communication method for the power line low-voltage station area (see below for a detailed description), for example, the root node and/or slave node of the low-voltage station area 1 in Figure 1 above can be used Configure and implement the communication method of the power line low-voltage station area of the embodiment of the present application, and configure the nodes in the low-voltage station area 1 into a topological network in the communication link layer of the low-voltage station area, and each node communicates with each other on the communication link, so that The communication performance of the low-voltage station area 1 is improved to ensure the stable operation of the business in the low-voltage station area 1; at the same time, the nodes in the low-voltage station area 1 belong to the same topology network, which is conducive to the business expansion of the low-voltage station area 1 and meets the needs of business development. need.

需要说明的是，本申请实施例描述的上述应用场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着PLC网络架构的演变和新业务场景的出现，以及其他有线通信网络架构，本申请实施例提供的技术方案对于类似的技术问题，同样适用。It should be noted that the above application scenarios described in the embodiments of the present application are for the purpose of more clearly explaining the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. With the evolution of the PLC network architecture and the emergence of new business scenarios, as well as other wired communication network architectures, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

下面对本申请实施例提供的电力线低压台区的通信方法进行具体阐述。The communication method for the power line low-voltage station area provided by the embodiment of the present application will be described in detail below.

图4示出了本申请一实施例的一种电力线低压台区的通信方法的流程图，如图4所示，该方法可以包括以下步骤：Fig. 4 shows a flowchart of a communication method for a power line low-voltage station area according to an embodiment of the present application. As shown in Fig. 4, the method may include the following steps:

步骤401、目标从节点向第一根节点发送接入网络请求报文。Step 401, the target slave node sends a network access request message to the first root node.

其中，接入网络请求报文包括目标从节点的身份信息。示例性地，目标从节点的身份信息可以包括目标从节点的唯一地址。Wherein, the network access request message includes the identity information of the target slave node. Exemplarily, the identity information of the target slave node may include a unique address of the target slave node.

目标从节点可以为任一从节点，示例性地，目标从节点可以包括第一根节点对应的从节点，及第二根节点对应的从节点。The target slave node may be any slave node. Exemplarily, the target slave node may include a slave node corresponding to the first root node and a slave node corresponding to the second root node.

第一根节点可以为低压台区中的任一根节点，第二根节点可以为低压台区中除第一根节点之外的至少一个根节点，第一根节点对应的从节点表示低压台区中由第一根节点管理的一个或多个从节点，第二根节点对应的从节点表示低压台区中由第二根节点管理的一个或多个从节点，其中，第一根节点对应的从节点与第二根节点对应的从节点为不同的节点。The first root node can be any root node in the low-voltage station area, the second root node can be at least one root node in the low-voltage station area except the first root node, and the slave node corresponding to the first root node represents the low-voltage station One or more slave nodes managed by the first root node in the area, and the slave nodes corresponding to the second root node represent one or more slave nodes managed by the second root node in the low-voltage station area, where the first root node corresponds to The slave node of is different from the slave node corresponding to the second root node.

例如，低压台区可以为图1所示的低压台区1，第一根节点可以为根节点CCO1，第二根节点可以为根节点CCO2，目标从节点可以为从节点STA1、STA2、STA3…等中的任一从节点。For example, the low-voltage station area can be the low-voltage station area 1 shown in Figure 1, the first root node can be the root node CCO1, the second root node can be the root node CCO2, and the target slave nodes can be slave nodes STA1, STA2, STA3... and so on to any slave node.

步骤402、第一根节点接收目标从节点的接入网络请求报文。Step 402, the first root node receives the network access request message of the target slave node.

可选的，第一根节点可以根据所接收的接入网络请求报文，确定目标从节点的身份信息。Optionally, the first root node may determine the identity information of the target slave node according to the received network access request message.

步骤403、第一根节点根据目标从节点的身份信息，确定目标从节点是否接入第一根节点所在的低压台区。Step 403, the first root node determines whether the target slave node is connected to the low-voltage station area where the first root node is located according to the identity information of the target slave node.

可以理解的是，第一根节点所在的低压台区即为第二根节点、第一根节点对应的从节点及第二根节点对应的从节点所在的低压台区。或者说，第一根节点、第二根节点、第一根节点对应的从节点及第二根节点对应的从节点在同一个低压台区中。It can be understood that the low-voltage platform area where the first root node is located is the low-voltage platform area where the second root node, the slave node corresponding to the first root node, and the slave node corresponding to the second root node are located. In other words, the first root node, the second root node, the slave node corresponding to the first root node, and the slave node corresponding to the second root node are in the same low-voltage station area.

示例性地，第一根节点可以根据目标从节点的身份信息，确定该目标从节点是否为第一根节点对应的从节点或第二根节点对应的从节点，从而确定目标从节点是否接入第一根节点所在的低压台区。Exemplarily, the first root node can determine whether the target slave node is a slave node corresponding to the first root node or a slave node corresponding to the second root node according to the identity information of the target slave node, so as to determine whether the target slave node accesses The low-voltage platform area where the first root node is located.

示例性地，第一根节点可以向目标从节点发送接入网络响应报文，例如，第一根节点可以在确定目标从节点接入第一根节点所在的低压台区时，向目标从节点发送接入网络成功报文；也可以在拒绝目标从节点接入第一根节点所在的低压台区时，向目标从节点发送接入网络失败报文。Exemplarily, the first root node may send an access network response message to the target slave node. For example, the first root node may send the target slave node Sending a network access success message; or sending a network access failure message to the target slave node when denying the target slave node from accessing the low-voltage station area where the first root node is located.

步骤404、目标从节点接收第一根节点发送的接入网络响应报文。Step 404, the target slave node receives the access network response message sent by the first root node.

示例性地，若目标从节点接收到接入网络成功报文，则表明目标从节点为第一根节点对应的从节点或第二根节点对应的从节点，并已成功接入第一根节点所在的低压台区；若目标节点接收到接入网络失败报文，则表明目标从节点不是第一根节点对应的从节点，也不是第二根节点对应的从节点，目标从节点不能接入第一根节点所在的低压台区。For example, if the target slave node receives the network access success message, it indicates that the target slave node is the slave node corresponding to the first root node or the slave node corresponding to the second root node, and has successfully connected to the first root node The low-voltage station area where the target node is located; if the target node receives the network access failure message, it indicates that the target slave node is not the slave node corresponding to the first root node, nor the slave node corresponding to the second root node, and the target slave node cannot be connected The low-voltage platform area where the first root node is located.

本申请实施例中，可以将第一根节点对应的从节点及第二根节点对应的从节点在低压台区通信链路层中配置到一个拓扑网络中，低压台区中的节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。In the embodiment of this application, the slave nodes corresponding to the first root node and the slave nodes corresponding to the second root node can be configured in a topological network in the communication link layer of the low-voltage station area, and the nodes in the low-voltage station area are in the communication link layer Interconnection on the road improves the communication performance of the low-voltage station area and ensures the stable operation of the business in the low-voltage station area; at the same time, the nodes in the low-voltage station area belong to the same topology network, which facilitates the business expansion of the low-voltage station area and meets the requirements of the low-voltage station area. Business development needs.

示例性地，第一根节点与第二根节点可以为不同部门管理的根节点，第一根节点及第一根节点对应的从节点为同一部门管理的节点，第二根节点及第二根节点对应的从节点为同一部门管理的节点。Exemplarily, the first root node and the second root node can be root nodes managed by different departments, the first root node and the slave nodes corresponding to the first root node are nodes managed by the same department, the second root node and the second root node The slave nodes corresponding to the nodes are nodes managed by the same department.

在一些示例中，第一根节点及第一根节点对应的从节点可以用于营销采集抄表业务；第二根节点及第二根节点对应的从节点可以用于设备配置业务。其中，设备配置业务可以包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别或三相不平衡治理中的至少一项。例如，图2中的低压台区1，第一根节点可以为集中器，第二根节点可以为融合终端，第一根节点对应的从节点可以包括：电能表、表前开关、计量表计等，第二根节点对应的从节点可以包括：分支开关、故指、入线开关、出线开关、无功补偿器、漏电保护器等。In some examples, the first root node and the slave nodes corresponding to the first root node can be used for marketing collection meter reading service; the second root node and the slave nodes corresponding to the second root node can be used for device configuration service. Among them, the equipment configuration service may include: at least one of line branch identification, power outage fault point research and judgment, line loss analysis and management, line fault early warning, line aging identification, or three-phase imbalance treatment. For example, in the low-voltage station area 1 in Figure 2, the first root node can be a concentrator, the second root node can be a fusion terminal, and the slave nodes corresponding to the first root node can include: electric energy meters, switches in front of meters, meters etc., the slave nodes corresponding to the second root node may include: branch switches, fault fingers, incoming line switches, outgoing line switches, reactive power compensators, leakage protectors, and the like.

在另一些示例中，第一根节点及第一根节点对应的从节点可以用于设备配置业务；第二根节点及第二根节点对应的从节点可以用于营销采集抄表业务。例如，图2中的低压台区1，第一根节点可以为融合终端，第二根节点可以为集中器，第一根节点对应的从节点可以包括：分支开关、故指、入线开关、出线开关、无功补偿器、漏电保护器等，第二根节点对应的从节点可以包括：电能表、表前开关、计量表计等。In some other examples, the first root node and the slave nodes corresponding to the first root node may be used for device configuration services; the second root node and the slave nodes corresponding to the second root nodes may be used for marketing collection and meter reading services. For example, in the low-voltage station area 1 in Figure 2, the first root node can be a fusion terminal, the second root node can be a concentrator, and the slave nodes corresponding to the first root node can include: a branch switch, an old finger, an incoming switch, Outlet switches, reactive power compensators, leakage protectors, etc., and the slave nodes corresponding to the second root node may include: electric energy meters, switches in front of meters, metering meters, etc.

这样，可以将低压台区中不同部门所管理的节点在该低压台区通信链路层中配置到一个拓扑网络中，这些节点在通信链路上互相融通，从而提升了低压台区的通信性能，确保了营销采集抄表业务及设备配置业务的稳定运行；同时，不同部门所管理的节点属于同一拓扑网络，便于扩展新的业务，从而满足业务发展需求。In this way, the nodes managed by different departments in the low-voltage station area can be configured in a topological network in the communication link layer of the low-voltage station area. These nodes communicate with each other on the communication link, thereby improving the communication performance of the low-voltage station area. , to ensure the stable operation of marketing collection meter reading business and equipment configuration business; at the same time, the nodes managed by different departments belong to the same topology network, which is convenient for expanding new business, so as to meet the needs of business development.

在一种可能的实现方式中，在上述步骤401之前，第一根节点可以通过配对确定与第一根节点匹配的第二根节点。In a possible implementation manner, before step 401 above, the first root node may determine a second root node matching the first root node through pairing.

图5示出了本申请一实施例的一种根节点配对的流程图，如图5所示，可以包括以下步骤：Fig. 5 shows a flow chart of root node pairing according to an embodiment of the present application. As shown in Fig. 5, the following steps may be included:

步骤501、第一根节点监听网络中的根节点。Step 501, the first root node monitors the root nodes in the network.

其中，该网络指第一根节点可以监听搜索到的该第一根节点附近的网络，一般可以包括至少一个低压台区，例如，可以包括第一根节点所在的低压台区，及与第一根节点所在的低压台区相邻的低压台区；图6示出了图1中的低压台区1中根节点配对的示意图，如图6所示，低压台区1中的根节点CCO1可以监听到低压台区1中的根节点CCO2及低压台区2中的根节点CCO3。Wherein, the network refers to the network near the first root node that can be monitored and searched by the first root node, and generally can include at least one low-voltage station area, for example, it can include the low-voltage station area where the first root node is located, and the first The low-voltage station area adjacent to the low-voltage station area where the root node is located; Figure 6 shows a schematic diagram of the root node pairing in the low-voltage station area 1 in Figure 1, as shown in Figure 6, the root node CCO1 in the low-voltage station area 1 can monitor To the root node CCO2 in the low-voltage platform area 1 and the root node CCO3 in the low-voltage platform area 2.

示例性地，第一根节点可以在首次上电或者重启之后，监听网络中的根节点。Exemplarily, the first root node may listen to the root nodes in the network after being powered on for the first time or restarted.

步骤502、第一根节点在所监听到的根节点中，确定与第一根节点匹配的第二根节点。Step 502, the first root node determines a second root node matching the first root node among the listened root nodes.

示例性地，若第一根节点本地存有历史配对信息，则可以根据历史配对信息，在所监听到的根节点中选取其配对过的根节点进行配对，从而确定与第一根节点匹配的第二根节点。Exemplarily, if the first root node has historical pairing information locally, then according to the historical pairing information, the paired root node can be selected from the monitored root nodes for pairing, so as to determine the the second root node.

示例性地，第一根节点监听到根节点后，可以基于无扰识别进行配对，即可以通过第一根节点与所监听到的各根节点之间的物理通信质量或电力线特征中的至少一项进行配对，从而确定与第一根节点匹配的第二根节点。其中，物理通信质量可以包括信噪比(Signal-to-noise ratio，SNR)，电力线特征可以包括过零点网络基准时间(Network TimeBase，NTB)信息。Exemplarily, after the first root node monitors the root node, it can perform pairing based on non-disturbance identification, that is, at least one of physical communication quality or power line characteristics between the first root node and the monitored root nodes can be used. Items are paired to determine the second root node that matches the first root node. Wherein, the physical communication quality may include signal-to-noise ratio (Signal-to-noise ratio, SNR), and the power line characteristics may include zero-crossing network reference time (Network TimeBase, NTB) information.

在一些示例中，第一根节点可以将第一根节点与所监听到的各根节点之间的SNR或过零点NTB信息，与预设阈值进行比较，并将超过预设阈值的SNR或过零点NTB信息所对应的根节点确定为与第一根节点匹配的第二根节点。例如，如图6所示，根节点CCO1与根节点CCO2之间的SNR为30db，根节点CCO1与根节点CCO3之间的SNR为10db，设预设阈值为25db，则可确定根节点CCO2为与根节点CCO1匹配的根节点。In some examples, the first root node can compare the SNR or zero-crossing point NTB information between the first root node and the detected root nodes with a preset threshold, and compare the SNR or NTB information that exceeds the preset threshold The root node corresponding to the zero point NTB information is determined as the second root node matching the first root node. For example, as shown in Figure 6, the SNR between the root node CCO1 and the root node CCO2 is 30db, the SNR between the root node CCO1 and the root node CCO3 is 10db, and the preset threshold is 25db, then it can be determined that the root node CCO2 is The root node that matches the root node CCO1.

在另一些示例中，第一根节点可以通过第一根节点与所监听到的各根节点之间的SNR进行快速初步配对，将最高SNR值所对应的根节点作为候选根节点，进而利用候选根节点与第一根节点之间的过零点NTB信息进行精确配对，若过零点NTB信息超过预设阈值，则将该候选根节点确定为与第一根节点匹配的第二根节点。例如，如图6所示，根节点CCO1与根节点CCO2之间的SNR为30db，根节点CCO1与根节点CCO3之间的SNR为10db，则可筛选出根节点CCO2为候选根节点，经判断根节点CCO1与根节点CCO2之间过零点NTB信息超过预设阈值，则可确定根节点CCO2为与根节点CCO1匹配的根节点。In some other examples, the first root node can perform quick preliminary pairing through the SNR between the first root node and the monitored root nodes, and use the root node corresponding to the highest SNR value as a candidate root node, and then use the candidate The zero-crossing NTB information between the root node and the first root node is precisely matched, and if the zero-crossing NTB information exceeds a preset threshold, the candidate root node is determined as the second root node matching the first root node. For example, as shown in Figure 6, the SNR between the root node CCO1 and the root node CCO2 is 30db, and the SNR between the root node CCO1 and the root node CCO3 is 10db, then the root node CCO2 can be screened out as the candidate root node, after judging If the NTB information of the zero-crossing point between the root node CCO1 and the root node CCO2 exceeds a preset threshold, it can be determined that the root node CCO2 is a root node matching the root node CCO1.

本申请实施例中，第一根节点确定与第一根节点匹配的第二根节点，第一根节点与第二根节点属于同一低压台区，从而可以共同组建、管理和维护低压台区中通信链路层的同一拓扑网络。In the embodiment of this application, the first root node determines the second root node that matches the first root node, and the first root node and the second root node belong to the same low-voltage station area, so that they can be jointly established, managed and maintained in the low-voltage station area The same topology network at the communication link layer.

下面对组建低压台区中通信链路层的同一拓扑网络的几种方式进行具体说明：The following is a specific description of several ways to build the same topology network of the communication link layer in the low-voltage station area:

方式一：method one:

图7示出了本申请一实施例的一种认证组网的流程图，如图7所示，可以包括以下步骤：Fig. 7 shows a flowchart of an authentication networking according to an embodiment of the present application. As shown in Fig. 7, the following steps may be included:

步骤701、目标从节点向第一根节点发送接入网络请求报文。Step 701, the target slave node sends a network access request message to the first root node.

该步骤的具体说明可参照上述步骤401的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 401 .

步骤702、第一根节点接收目标从节点的接入网络请求报文。Step 702, the first root node receives the network access request message of the target slave node.

该步骤的具体说明可参照上述步骤402的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 402 .

步骤703、第一根节点在第一根节点对应的白名单(也称认证名单)中查找目标从节点的身份信息，在目标从节点的身份信息属于第一根节点对应的白名单的情况下，第一根节点向目标从节点发送接入网络成功报文。Step 703, the first root node searches for the identity information of the target slave node in the white list (also called the authentication list) corresponding to the first root node, if the identity information of the target slave node belongs to the white list corresponding to the first root node , the first root node sends a network access success message to the target slave node.

其中，第一根节点对应的白名单可以包括第一根节点对应的从节点的身份信息。Wherein, the white list corresponding to the first root node may include identity information of the slave nodes corresponding to the first root node.

示例性地，第一根节点可以从主站预先获取第一根节点对应的白名单，可以理解的是，随着业务发展，新的节点需要加入低压台区，则主站可以不断更新第一根节点对应的白名单，并将更新后的第一根节点对应的白名单发送给第一根节点。Exemplarily, the first root node can pre-acquire the white list corresponding to the first root node from the main station. The white list corresponding to the root node, and the updated white list corresponding to the first root node is sent to the first root node.

步骤704、目标从节点接收第一根节点发送的接入网络成功报文。Step 704, the target slave node receives the network access success message sent by the first root node.

这样，目标从节点通过认证成功接入第一根节点所在的低压台区，该目标从节点即为第一根节点对应的从节点。In this way, the target slave node successfully accesses the low-voltage station area where the first root node is located through authentication, and the target slave node is the slave node corresponding to the first root node.

该方式中，第一根节点接收到目标从节点的接入网络请求报文后，通过在第一根节点对应的白名单中查找目标从节点的身份信息，实现独立认证组网。In this way, after the first root node receives the network access request message of the target slave node, it searches for the identity information of the target slave node in the whitelist corresponding to the first root node to realize independent authentication networking.

方式二：Method 2:

图8示出了本申请一实施例的另一种认证组网的流程图，如图8所示，可以包括以下步骤：Fig. 8 shows a flowchart of another authentication networking according to an embodiment of the present application. As shown in Fig. 8, the following steps may be included:

步骤801、目标从节点向第一根节点发送接入网络请求报文。Step 801, the target slave node sends a network access request message to the first root node.

该步骤的具体说明可参照上述步骤401的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 401 .

步骤802、第一根节点接收目标从节点的接入网络请求报文。Step 802, the first root node receives the network access request message of the target slave node.

该步骤的具体说明可参照上述步骤402的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 402 .

步骤803、第一根节点在第一根节点对应的白名单中查找目标从节点的身份信息；并在目标从节点的身份信息不属于第一根节点对应的白名单的情况下，第一根节点向第二根节点发送目标从节点的接入网络请求报文。Step 803, the first root node searches for the identity information of the target slave node in the white list corresponding to the first root node; and when the identity information of the target slave node does not belong to the white list corresponding to the first root node, the first root node The node sends the network access request message of the target slave node to the second root node.

其中，第一根节点对应的白名单的具体介绍可参照上述步骤703中的相关表述。Wherein, for the specific introduction of the white list corresponding to the first root node, refer to the relevant expressions in the above step 703 .

步骤804、第二根节点接收第一根节点发送的目标从节点的接入网络请求报文。Step 804, the second root node receives the network access request message of the target slave node sent by the first root node.

步骤805、第二根节点在第二根节点对应的白名单中查找目标从节点的身份信息；在目标从节点的身份信息属于第二根节点对应的白名单的情况下，第二根节点向第一根节点发送接入网络成功报文，并由第一根节点转发至目标从节点。Step 805, the second root node searches the identity information of the target slave node in the white list corresponding to the second root node; when the identity information of the target slave node belongs to the white list corresponding to the second root node, the second root node sends The first root node sends a network access success message, and is forwarded by the first root node to the target slave node.

其中，第二根节点对应的白名单包括第二根节点对应的从节点的身份信息，示例性地，第二根节点对应的白名单与第一根节点对应的白名单中不存在相同的身份信息。Wherein, the white list corresponding to the second root node includes the identity information of the slave node corresponding to the second root node, for example, the white list corresponding to the second root node does not have the same identity as the white list corresponding to the first root node information.

示例性地，第二根节点可以从主站预先获取第二根节点对应的白名单，可以理解的是，随着业务发展，新的节点需要加入低压台区，则主站可以不断更新第二根节点对应的白名单，并将更新后的第二根节点对应的白名单发送给第二根节点。Exemplarily, the second root node can pre-acquire the white list corresponding to the second root node from the main station. The white list corresponding to the root node, and the updated white list corresponding to the second root node is sent to the second root node.

步骤806、目标从节点接收第一根节点转发的接入网络成功报文。Step 806, the target slave node receives the network access success message forwarded by the first root node.

这样，目标从节点通过认证成功接入第一根节点所在的低压台区，该目标从节点即为第二根节点对应的从节点。In this way, the target slave node successfully accesses the low-voltage station area where the first root node is located through authentication, and the target slave node is the slave node corresponding to the second root node.

该方式中，第一根节点接收到目标从节点的接入网络请求报文后，可以转发到第二根节点，从而由第一根节点及第二根节点分别在对应的白名单中查找目标从节点的身份信息，实现共同认证组网。In this method, after the first root node receives the network access request message from the target slave node, it can forward it to the second root node, so that the first root node and the second root node search for the target in the corresponding white list From the identity information of the node, the joint authentication network is realized.

方式三：Method 3:

图9示出了本申请一实施例的另一种认证组网的流程图，如图9所示，可以包括以下步骤：Fig. 9 shows a flowchart of another authentication networking according to an embodiment of the present application. As shown in Fig. 9, the following steps may be included:

步骤901、第二根节点向第一根节点发送第二根节点对应的白名单。Step 901, the second root node sends a white list corresponding to the second root node to the first root node.

其中，第二根节点对应的白名单的具体介绍可参照上述步骤805中的相关表述。Wherein, for the specific introduction of the white list corresponding to the second root node, reference may be made to the relevant expressions in the above-mentioned step 805 .

步骤902、第一根节点接收第二根节点对应的白名单。Step 902, the first root node receives the whitelist corresponding to the second root node.

步骤903、目标从节点向第一根节点发送接入网络请求报文。Step 903, the target slave node sends a network access request message to the first root node.

该步骤的具体说明可参照上述步骤401的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 401 .

步骤904、第一根节点接收目标从节点的接入网络请求报文。Step 904, the first root node receives the network access request message of the target slave node.

该步骤的具体说明可参照上述步骤402的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 402 .

需要说明的是，步骤903及步骤904可以在步骤901之前执行，对此不作限定。It should be noted that step 903 and step 904 may be performed before step 901, which is not limited.

步骤905、第一根节点在第一根节点对应的白名单及第二根节点对应的白名单中查找目标从节点的身份信息；在目标从节点的身份信息属于第一根节点对应的白名单或第二根节点对应的白名单的情况下，第一根节点向目标从节点发送接入网络成功报文。Step 905, the first root node searches for the identity information of the target slave node in the white list corresponding to the first root node and the white list corresponding to the second root node; the identity information of the target slave node belongs to the white list corresponding to the first root node Or in the case of the white list corresponding to the second root node, the first root node sends a network access success message to the target slave node.

步骤906、目标从节点接收第一根节点发送的接入网络成功报文。Step 906, the target slave node receives the network access success message sent by the first root node.

这样，目标从节点通过认证成功接入第一根节点所在的低压台区，该目标从节点即为第一根节点对应的从节点或第二根节点对应的从节点。In this way, the target slave node successfully accesses the low-voltage station area where the first root node is located through authentication, and the target slave node is the slave node corresponding to the first root node or the slave node corresponding to the second root node.

该方式中，第二根节点将第二根节点对应的白名单授权给第一根节点，第一根节点接收到目标从节点的接入网络请求报文后，通过在第一根节点对应的白名单及第二根节点对应的白名单中查找目标从节点的身份信息，实现认证组网。In this method, the second root node authorizes the whitelist corresponding to the second root node to the first root node, and after receiving the network access request message from the target slave node, the first root node passes the Find the identity information of the target slave node in the white list and the white list corresponding to the second root node to realize authentication networking.

这样，通过上述图7、图8、图9所示的认证组网方式，即可完成低压台区中通信链路层的同一拓扑网络的构建。这样，低压台区中的节点在通信链路上互相融通，两个节点之间的通信路径中，可以以第一根节点的从节点、第二根节点对应的从节点、第一根节点或第二根节点中的至少一项作为中继，从而提升了低压台区的通信性能，确保了低压台区中业务的稳定运行；同时，低压台区中的节点归属于同一拓扑网络，便于低压台区的业务扩展，从而满足业务发展需求。In this way, the construction of the same topology network of the communication link layer in the low-voltage station area can be completed through the authentication networking methods shown in Fig. 7, Fig. 8, and Fig. 9 above. In this way, the nodes in the low-voltage station area communicate with each other on the communication link. In the communication path between two nodes, the slave node of the first root node, the slave node corresponding to the second root node, the first root node or At least one of the second root nodes acts as a relay, thereby improving the communication performance of the low-voltage station area and ensuring the stable operation of services in the low-voltage station area; at the same time, the nodes in the low-voltage station area belong to the same topology network, which is convenient for low-voltage The business expansion of the Taiwan area, so as to meet the needs of business development.

举例来说，图10示出了本申请一实施例中构建的图1中的低压台区1的通信链路层的一个网络拓扑的示意图，如图10所示，CCO1与CCO2为成功配对的根节点，STA1、STA2、STA3、STA4、STA5、STA6、STA7、STA8为通过认证并成功接入低压台区的从节点，其中，STA2、STA3、STA4、STA5、STA6为根节点CCO1对应的从节点，STA1、STA7、STA8为根节点CCO2对应的从节点。For example, FIG. 10 shows a schematic diagram of a network topology of the communication link layer of the low-voltage station area 1 in FIG. 1 constructed in an embodiment of the present application. As shown in FIG. 10 , CCO1 and CCO2 are successfully paired Root nodes, STA1, STA2, STA3, STA4, STA5, STA6, STA7, and STA8 are slave nodes that have passed authentication and successfully connected to the low-voltage station area, among which STA2, STA3, STA4, STA5, STA6 are slave nodes corresponding to the root node CCO1 Nodes, STA1, STA7, and STA8 are slave nodes corresponding to the root node CCO2.

区别于上述图3中低压台区1的通信链路层的两个网络拓扑，图10中节点在通信链路上互相融通，在通信时可以互为中继，例如，根节点CCO1与其对应的从节点STA2通信时，若通信路径中不包括CCO2对应的从节点，则需要多个CCO1对应的从节点进行转发，通信路径较长，信道衰减和噪声较大，通信稳定性和可靠性较差；若以CCO2对应的从节点STA1作为中继，则可以通过通信路径CCO1->STA1->STA2实现根节点CCO1与从节点STA2之间的通信，该通信路径较短，通信更加稳定和可靠，提升了通信性能。Different from the two network topologies of the communication link layer of the low-voltage station area 1 in Figure 3 above, the nodes in Figure 10 communicate with each other on the communication link and can act as relays for each other during communication. For example, the root node CCO1 and its corresponding When the slave node STA2 communicates, if the communication path does not include the slave node corresponding to CCO2, multiple slave nodes corresponding to CCO1 are required to forward, the communication path is long, the channel attenuation and noise are large, and the communication stability and reliability are poor. ; If the slave node STA1 corresponding to CCO2 is used as the relay, the communication between the root node CCO1 and the slave node STA2 can be realized through the communication path CCO1->STA1->STA2. The communication path is shorter and the communication is more stable and reliable. Improved communication performance.

进一步地，第一根节点及第二根节点可以共同管理和维护上述组建的低压台区中通信链路层的同一拓扑网络。由于第一根节点对应的从节点与第二根节点对应的从节点均位于同一拓扑网络，相比于图3中的同频双网方式中两个根节点各自发送网络维护报文，该拓扑网络中的第一根节点与第二根节点无需重复发送网络维护报文，提升了管理和维护的效率；同时，节约了通信资源，确保了低压台区中业务的稳定运行。Further, the first root node and the second root node can jointly manage and maintain the same topological network of the communication link layer in the above-mentioned low-voltage station area. Since the slave nodes corresponding to the first root node and the slave nodes corresponding to the second root node are located in the same topology network, compared with the same-frequency dual-network mode in Figure 3, the two root nodes send network maintenance messages respectively. The first root node and the second root node in the network do not need to repeatedly send network maintenance messages, which improves the efficiency of management and maintenance; at the same time, it saves communication resources and ensures the stable operation of services in low-voltage station areas.

示例性地，所组建的同一拓扑网络中的通信频段可以采用一个较宽的通信频段，该拓扑网络中的节点均可采用该通信频段进行通信；相比于图3中异频双网方式中所采用的频域上不重叠的两个通信频段，该拓扑网络中的采用一个通信频段可以有效避免两个频段间的通信干扰，提高了通信的稳定性和可靠性，同时，采用较宽的通信频段，通信速率更高，且可以支撑实时处理业务和大报文量的业务，确保了低压台区中业务的稳定运行。Exemplarily, the communication frequency band in the same topological network can adopt a wider communication frequency band, and the nodes in the topology network can all use this communication frequency band for communication; Two communication frequency bands that do not overlap in the frequency domain are used. Using one communication frequency band in this topology network can effectively avoid communication interference between the two frequency bands and improve the stability and reliability of communication. At the same time, using a wider The communication frequency band has a higher communication rate, and can support real-time processing services and services with a large amount of messages, ensuring the stable operation of services in low-voltage station areas.

示例性地，所组建的同一拓扑网络中的通信协议可以采用国网宽带载波协议。相比于图3中的异构双网方式中所采用的G3协议，国网宽带载波协议传输效率更高，通信的稳定性和可靠性更高，通信性能更优，同时，可以支撑实时处理业务和大报文量的业务，确保了低压台区中业务的稳定运行。Exemplarily, the communication protocol in the established network of the same topology can adopt the national network broadband carrier protocol. Compared with the G3 protocol used in the heterogeneous dual network mode in Figure 3, the State Grid broadband carrier protocol has higher transmission efficiency, higher communication stability and reliability, and better communication performance. At the same time, it can support real-time processing The business and the business with a large amount of packets ensure the stable operation of the business in the low-voltage station area.

下面以同步网络信息为例，对第一根节点及第二根节点共同管理和维护上述所构建的同一拓扑网络进行进一步说明。Taking synchronous network information as an example below, the first root node and the second root node jointly manage and maintain the same topology network constructed above will be further described.

其中，网络信息可以包括路由信息、节点的网络信息等等，示例性地，第一根节点与第二根节点可以同步路由信息、从节点的网络信息等。The network information may include routing information, network information of nodes, etc. Exemplarily, the first root node and the second root node may synchronize routing information, network information of slave nodes, and the like.

图11示出了本申请一实施例的一种同步网络信息的流程图，如图11所示，可以包括以下步骤：Fig. 11 shows a flow chart of synchronizing network information according to an embodiment of the present application. As shown in Fig. 11, the following steps may be included:

步骤1101、第一从节点向第一根节点发送第一从节点的网络信息。Step 1101, the first slave node sends the network information of the first slave node to the first root node.

其中，第一从节点为第一根节点对应的从节点中的任一从节点，第一从节点的网络信息可以包括：第一从节点的离线信息或第一从节点的在线信息中的至少一项。Wherein, the first slave node is any slave node in the slave nodes corresponding to the first root node, and the network information of the first slave node may include: at least one of the offline information of the first slave node or the online information of the first slave node one item.

步骤1102、第一根节点接收第一从节点的网络信息。Step 1102, the first root node receives network information of the first slave node.

步骤1103、第一根节点根据所接收的第一从节点的网络信息，更新第一根节点对应的路由信息。Step 1103, the first root node updates routing information corresponding to the first root node according to the received network information of the first slave node.

其中，第一根节点对应的路由信息可以包括第一根节点与第一根节点对应的从节点之间的通信路径或路由度量值中的至少一项；其中，路由度量值可以包括跳数、路径带宽、路径时延、路径使用率、路径可信度中的至少一项。Wherein, the routing information corresponding to the first root node may include at least one of a communication path between the first root node and a slave node corresponding to the first root node or a routing metric value; wherein, the routing metric value may include hop count, At least one of path bandwidth, path delay, path utilization, and path reliability.

该步骤中，第一从节点可以通过第一从节点的网络信息，确定第一从节点是否在线，从而更新第一根节点对应的与第一从节点相关的路由信息(例如，以第一从节点为中继或目的节点的通信路径)。示例性地，在第一从节点离线后，与第一从节点相关的原有通信路径不再可用，则第一根节点可以更新这些通信路径，并可以确定相应的路由度量值；在第一从节点上线时，第一根节点以第一从节点作为目的节点进行通信，或者可以利用第一从节点作为中继进行通信，则第一根节点可以更新与第一根节点对应的从节点之间的通信路径，并可以确定相应的路由度量值。In this step, the first slave node can determine whether the first slave node is online through the network information of the first slave node, thereby updating the routing information related to the first slave node corresponding to the first root node (for example, using the first slave node Node is the communication path of relay or destination node). Exemplarily, after the first slave node goes offline, the original communication path related to the first slave node is no longer available, then the first root node can update these communication paths, and can determine the corresponding routing metric value; When the slave node goes online, the first root node communicates with the first slave node as the destination node, or can use the first slave node as a relay to communicate, then the first root node can update the slave node corresponding to the first root node. The communication path between them, and can determine the corresponding routing metric.

步骤1104、第一根节点向第二根节点发送第一从节点的网络信息和/或第一根节点对应的路由信息。Step 1104, the first root node sends the network information of the first slave node and/or the routing information corresponding to the first root node to the second root node.

示例性地，第一根节点可以向第二根节点发送第一从节点的网络信息，还可以向第二根节点发送更新后的第一根节点对应的路由信息。Exemplarily, the first root node may send the network information of the first slave node to the second root node, and may also send updated routing information corresponding to the first root node to the second root node.

步骤1105、第二根节点接收第一从节点的网络信息和/或第一根节点对应的路由信息。Step 1105, the second root node receives the network information of the first slave node and/or the routing information corresponding to the first root node.

可选的，第二根节点在接收到第一从节点的网络信息之后，还可以根据所接收的第一从节点的网络信息，更新第二根节点对应的路由信息；其中，更新路由信息的具体介绍可参照上述步骤1103。Optionally, after receiving the network information of the first slave node, the second root node may also update the routing information corresponding to the second root node according to the received network information of the first slave node; For specific introduction, refer to the above step 1103.

本申请实施例中，第一根节点可以根据所接收的第一从节点的网络信息，更新第一根节点对应的路由信息，并可以主动向第二根节点发送第一从节点的网络信息和/或更新后的第一根节点对应的路由信息，从而实现两个根节点之间的网络信息同步。In this embodiment of the application, the first root node can update the routing information corresponding to the first root node according to the received network information of the first slave node, and can actively send the network information of the first slave node and /or the updated routing information corresponding to the first root node, so as to realize the synchronization of network information between the two root nodes.

图12示出了本申请一实施例的另一种同步网络信息的流程图，如图12所示，可以包括以下步骤：Fig. 12 shows another flow chart of synchronizing network information according to an embodiment of the present application. As shown in Fig. 12, the following steps may be included:

步骤1201、第一从节点向第一根节点发送第一从节点的网络信息。Step 1201, the first slave node sends the network information of the first slave node to the first root node.

该步骤的具体说明可参照上述步骤1101的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1101.

步骤1202、第一根节点接收第一从节点的网络信息。Step 1202, the first root node receives network information of the first slave node.

步骤1203、第一根节点根据所接收的第一从节点的网络信息，更新第一根节点对应的路由信息。Step 1203, the first root node updates routing information corresponding to the first root node according to the received network information of the first slave node.

该步骤的具体说明可参照上述步骤1103的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1103 .

步骤1204、第二根节点向第一根节点发送获取网络信息请求报文。Step 1204, the second root node sends a network information acquisition request message to the first root node.

该步骤中，第二根节点可以主动向第一根节点发起获取网络信息的请求。In this step, the second root node may initiate a request to the first root node to acquire network information.

步骤1205、第一根节点接收第二根节点的获取网络信息请求报文。Step 1205, the first root node receives the network information acquisition request message from the second root node.

步骤1206、第一根节点向第二根节点发送第一从节点的网络信息和/或第一根节点对应的路由信息。Step 1206, the first root node sends the network information of the first slave node and/or the routing information corresponding to the first root node to the second root node.

该步骤的具体说明可参照上述步骤1104的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1104 .

步骤1207、第二根节点接收第一从节点的网络信息和/或第一根节点对应的路由信息。Step 1207, the second root node receives the network information of the first slave node and/or the routing information corresponding to the first root node.

该步骤的具体说明可参照上述步骤1105的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1105 .

本申请实施例中，第一根节点可以根据所接收的第一从节点的网络信息，更新第一根节点对应的路由信息；同时，第二根节点可以向第一根节点发起获取网络信息的请求，第一根节点在接收到第二根节点的请求之后，可以向第二根节点发送第一从节点的网络信息和/或更新后的第一根节点对应的路由信息，从而实现两个根节点之间的网络信息同步。In this embodiment of the application, the first root node can update the routing information corresponding to the first root node according to the received network information of the first slave node; at the same time, the second root node can initiate a request to obtain network information from the first root node request, after receiving the request from the second root node, the first root node can send the network information of the first slave node and/or the updated routing information corresponding to the first root node to the second root node, so as to realize two Network information synchronization between root nodes.

下面对上述所构建的低压台区中通信链路层的拓扑网络中节点间进行业务通信的方式进行具体阐述。The manner in which service communication is performed between nodes in the topological network of the communication link layer in the low-voltage station area constructed above will be described in detail below.

示例性地，拓扑网络中的节点之间交互的业务报文中可以包括目的节点标识，当拓扑网络中的任一节点接收到业务报文后，首先判断自己是否为该业务报文中的目的节点标识所指示的目的节点，若自己为目的节点标识所指示的目的节点，则进一步对该业务报文进行解析处理；若自己不是目的节点标识所指示的目的节点，则不对该业务报文进行解析处理，直接转发到下一级节点。这样，第一根节点在向第一根节点对应的从节点发送业务报文时，可以将该业务报文中的目的节点标识所指示的目的节点设置为第一根节点对应的从节点；相应的，第二根节点在向第二根节点对应的从节点发送业务报文时，可以将该业务报文中的目的节点标识所指示的目的节点设置为第二根节点对应的从节点，从而实现了第一根节点与第二根节点，独立管理和运行各自的业务，互不干扰。Exemplarily, the service messages exchanged between nodes in the topological network may include the destination node identifier. When any node in the topological network receives the service message, it first judges whether it is the destination node in the service message. If the destination node indicated by the node identifier is the destination node indicated by the destination node identifier, the service message will be further analyzed; if it is not the destination node indicated by the destination node identifier, then the service message will not be processed. Parsing and processing are directly forwarded to the next level node. In this way, when the first root node sends a service message to the slave node corresponding to the first root node, the destination node indicated by the destination node identifier in the service message can be set as the slave node corresponding to the first root node; Yes, when the second root node sends a service message to the slave node corresponding to the second root node, the destination node indicated by the destination node identifier in the service message can be set as the slave node corresponding to the second root node, so that The first root node and the second root node are realized, independently manage and run their respective services without interfering with each other.

示例性地，第一根节点与第一根节点对应的从节点之间进行业务报文交互时，可以以拓扑网络中的节点作为中继，从而提升通信性能，确保业务的稳定运行。Exemplarily, when the first root node and the slave node corresponding to the first root node exchange service messages, nodes in the topology network can be used as relays, thereby improving communication performance and ensuring stable operation of services.

图13示出了本申请一实施例的一种进行业务通信的流程图，如图13所示，可以包括以下步骤：Fig. 13 shows a flowchart of business communication according to an embodiment of the present application. As shown in Fig. 13, the following steps may be included:

步骤1301、第一根节点发送第一业务报文。Step 1301, the first root node sends a first service packet.

其中，第一业务报文中包括目的节点标识，该目的节点标识所指示的目的节点为第一从节点，即第一业务报文为第一根节点发送给第一从节点的业务报文。Wherein, the first service message includes a destination node identifier, and the destination node indicated by the destination node identifier is the first slave node, that is, the first service message is a service message sent by the first root node to the first slave node.

示例性地，第一根节点可以在接收到主站下发的第一业务报文之后，将第一业务报文发送给第二根节点，并由第二根节点进一步转发至第一从节点。Exemplarily, the first root node may send the first service message to the second root node after receiving the first service message from the master station, and the second root node further forwards the first service message to the first slave node .

示例性地，第一根节点可以根据本地路由信息，确定通信路径，通过该通信路径向第一从节点发送第一业务报文，该通信路径中包括第二根节点。其中，第一根节点的本地路由信息可以包括第一根节点对应的路由信息，还可以包括上述通过网络信息同步所获得的第二根节点对应的路由信息。Exemplarily, the first root node may determine a communication path according to local routing information, and send the first service packet to the first slave node through the communication path, and the communication path includes the second root node. Wherein, the local routing information of the first root node may include routing information corresponding to the first root node, and may also include routing information corresponding to the second root node obtained through network information synchronization.

示例性地，在第一根节点无法获取到达第一从节点的路由信息的情况下，第一根节点将第一业务报文发送给第二根节点，其中，无法获取到达第一从节点的路由信息是指第一根节点对应的路由信息中不包括第一根节点与第一从节点之间的通信路径。Exemplarily, in the case that the first root node cannot obtain the routing information to the first slave node, the first root node sends the first service packet to the second root node, wherein the routing information to the first slave node cannot be obtained The routing information means that the routing information corresponding to the first root node does not include the communication path between the first root node and the first slave node.

步骤1302、第二根节点接收并转发第一业务报文。Step 1302, the second root node receives and forwards the first service packet.

示例性地，第二根节点接收到第一业务报文之后，确定自己不是第一业务报文中目的节点标识所指示的目的节点，不对第一业务报文进行解析，直接将第一业务报文转发至第一从节点。Exemplarily, after receiving the first service message, the second root node determines that it is not the destination node indicated by the destination node identifier in the first service message, does not parse the first service message, and directly sends the first service message to The text is forwarded to the first slave node.

可以理解的是，第二根节点将第一业务报文转发至第一从节点的通信路径中，还可以包括其他节点作为中继，例如，第二根节点对应的从节点，第一根节点对应的除第一从节点之外的从节点。It can be understood that the second root node forwards the first service message to the communication path of the first slave node, which may also include other nodes as relays, for example, the slave node corresponding to the second root node, the first root node Corresponding slave nodes other than the first slave node.

步骤1303、第一从节点接收第一业务报文。Step 1303, the first slave node receives the first service message.

示例性地，第一从节点接收到第一业务报文之后，确定自己为第一业务报文中目的节点标识所指示的目的节点，进而对第一业务报文进行解析处理。Exemplarily, after receiving the first service message, the first slave node determines that it is the destination node indicated by the destination node identifier in the first service message, and then parses and processes the first service message.

本申请实施例中，在第一根节点向第一从节点发送业务报文时，以第二根节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。In the embodiment of the present application, when the first root node sends a service message to the first slave node, the second root node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the service.

图14示出了本申请一实施例的另一种进行业务通信的流程图，如图14所示，可以包括以下步骤：Fig. 14 shows another flow chart of business communication according to an embodiment of the present application. As shown in Fig. 14, the following steps may be included:

步骤1401、第一从节点发送第二业务报文。Step 1401, the first slave node sends a second service packet.

其中，第二业务报文包括目的节点标识，该目的节点标识所指示的目的节点为第一根节点，即第二业务报文为第一从节点发送给第一根节点的业务报文。Wherein, the second service message includes a destination node identifier, and the destination node indicated by the destination node identifier is the first root node, that is, the second service message is a service message sent from the first slave node to the first root node.

示例性地，第一从节点可以根据本地路由信息，确定通信路径，通过该通信路径向第一根节点发送第二业务报文，该通信路径中包括第二根节点。其中，第一从节点的本地路由信息可以包括第一从节点与第一根节点之间的通信路径。Exemplarily, the first slave node may determine a communication path according to local routing information, and send the second service packet to the first root node through the communication path, and the communication path includes the second root node. Wherein, the local routing information of the first slave node may include a communication path between the first slave node and the first root node.

可以理解的是，第一从节点将第二业务报文发送至第二根节点的通信路径中，还可以包括其他节点作为中继，例如，第二根节点对应的从节点，第一根节点对应的除第一从节点之外的从节点。It can be understood that the communication path where the first slave node sends the second service message to the second root node may also include other nodes as relays, for example, the slave node corresponding to the second root node, the first root node Corresponding slave nodes other than the first slave node.

步骤1402、第二根节点接收并转发第二业务报文。Step 1402, the second root node receives and forwards the second service message.

该步骤的具体说明可参照上述步骤1302的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1302 .

该步骤，第二根节点将第二业务报文转发至第一根节点。In this step, the second root node forwards the second service packet to the first root node.

步骤1403、第一根节点接收第二业务报文。Step 1403, the first root node receives the second service message.

该步骤中，第一根节点接收到第二业务报文之后，对第二业务报文进行解析处理，并可以进一步将解析处理后的数据上报到主站。In this step, after receiving the second service message, the first root node analyzes and processes the second service message, and may further report the analyzed and processed data to the master station.

本申请实施例中，在第一从节点向第一根节点发送业务报文时，以第二根节点作为中继，转发该业务报文，从而提升通信性能，确保业务的稳定运行。In the embodiment of the present application, when the first slave node sends a service message to the first root node, the second root node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the service.

举例来说，图15a示出了图1中的低压台区1中节点间一种进行业务通信的示意图，在图15a中，从节点STA1、STA3、STA5为根节点CCO2对应的从节点，从节点STA2、STA4、STA6为根节点CCO1对应的从节点。如图15a所示，根节点CCO1向从节点STA6发送业务报文时，通信路径可以为CCO1->CCO2->STA3->STA6，即根节点CCO1可以将业务报文发送给根节点CCO2，并由根节点CCO2转发至从节点STA6(经由从节点STA3转发)。图15b示出了图1中的低压台区1中节点间另一种进行业务通信的示意图，在图15b中，从节点STA1、STA3、STA5为根节点CCO2对应的从节点，从节点STA2、STA4、STA6为根节点CCO1对应的从节点；如图15b所示，从节点STA6向根节点CC01发送业务报文时，通信路径可以为STA6->STA3->CCO2->CCO1，即从节点STA6可以将业务报文发送给根节点CCO2(经由从节点STA3转发)，并由根节点CCO2转发至根节点CCO1；从而实现根节点CCO1与从节点STA6之间的双向业务报文交互。For example, FIG. 15a shows a schematic diagram of a service communication between nodes in the low-voltage station area 1 in FIG. 1. In FIG. 15a, the slave nodes STA1, STA3, and STA5 are slave nodes corresponding to the root node CCO2. Nodes STA2, STA4, and STA6 are slave nodes corresponding to the root node CCO1. As shown in Figure 15a, when the root node CCO1 sends a service message to the slave node STA6, the communication path can be CCO1->CCO2->STA3->STA6, that is, the root node CCO1 can send the service message to the root node CCO2, and It is forwarded by the root node CCO2 to the slave node STA6 (via the slave node STA3). Figure 15b shows another schematic diagram of service communication between nodes in the low-voltage station area 1 in Figure 1. In Figure 15b, the slave nodes STA1, STA3, and STA5 are slave nodes corresponding to the root node CCO2, and the slave nodes STA2, STA4 and STA6 are the slave nodes corresponding to the root node CCO1; as shown in Figure 15b, when the slave node STA6 sends a service message to the root node CC01, the communication path can be STA6->STA3->CCO2->CCO1, that is, the slave node STA6 The service message can be sent to the root node CCO2 (forwarded by the slave node STA3), and forwarded by the root node CCO2 to the root node CCO1; thus realizing the two-way service message interaction between the root node CCO1 and the slave node STA6.

图16示出了本申请一实施例的另一种进行业务通信的流程图，如图16所示，可以包括以下步骤：Fig. 16 shows another flow chart of business communication according to an embodiment of the present application. As shown in Fig. 16, the following steps may be included:

步骤1601、第一根节点发送第三业务报文。Step 1601, the first root node sends a third service message.

其中，第三业务报文中包括目的节点标识，该目的节点标识所指示的目的节点为第一从节点，即第三业务报文为第一根节点发送给第一从节点的业务报文。Wherein, the third service message includes a destination node identifier, and the destination node indicated by the destination node identifier is the first slave node, that is, the third service message is a service message sent by the first root node to the first slave node.

示例性地，第一根节点可以根据第一根节点对应的路由信息，确定通信路径，在该通信路径中以第二从节点为下一跳节点时，第一根节点将第三业务报文发送至第二从节点，并由第二从节点进一步转发至第一从节点；其中，第二从节点可以为第二根节点对应的从节点中的任一从节点。Exemplarily, the first root node can determine the communication path according to the routing information corresponding to the first root node, and when the second slave node is used as the next-hop node in the communication path, the first root node sends the third service message sent to the second slave node, and further forwarded by the second slave node to the first slave node; wherein, the second slave node may be any slave node in the slave nodes corresponding to the second root node.

示例性地，第一根节点可以监听一跳可达的从节点，第二从节点可以为第一根节点监听到的一跳可达的从节点，第一根节点可以通过第二从节点转发第三业务报文。Exemplarily, the first root node can monitor one-hop reachable slave nodes, the second slave node can be the one-hop reachable slave nodes monitored by the first root node, and the first root node can forward the The third service message.

步骤1602、第二从节点接收并转发第三业务报文。Step 1602, the second slave node receives and forwards the third service packet.

该步骤的具体说明可参照上述步骤1302的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1302 .

步骤1603、第一从节点接收第三业务报文。Step 1603, the first slave node receives the third service message.

该步骤的具体说明可参照上述步骤1303的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1303 .

本申请实施例中，在第一根节点向第一从节点发送业务报文时，以第二从节点作为中继，转发该业务报文，从而提升通信性能，确保业务稳定运行；同时，无需通过第二根节点转发，从而减少了第一根节点与第二根节点之间的报文交互，节省了带宽。In the embodiment of the present application, when the first root node sends a service message to the first slave node, the second slave node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the service; at the same time, no Forwarding through the second root node reduces message interaction between the first root node and the second root node and saves bandwidth.

图17示出了本申请一实施例的另一种进行业务通信的流程图，如图17所示，可以包括以下步骤：Fig. 17 shows another flow chart of business communication according to an embodiment of the present application. As shown in Fig. 17, the following steps may be included:

步骤1701、第一从节点发送第四业务报文。Step 1701, the first slave node sends a fourth service packet.

该步骤的具体说明可参照上述步骤1401的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1401.

该步骤中，第一从节点所确定的向第一根节点发送第四业务报文的通信路径中包括第二从节点。In this step, the communication path for sending the fourth service packet to the first root node determined by the first slave node includes the second slave node.

步骤1702、第二从节点接收并转发第四业务报文。Step 1702, the second slave node receives and forwards the fourth service message.

该步骤的具体说明可参照上述步骤1302的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1302 .

该步骤，第二从节点将第四业务报文转发至第一根节点。In this step, the second slave node forwards the fourth service packet to the first root node.

步骤1703、第一根节点接收第二从节点转发的第四业务报文。Step 1703, the first root node receives the fourth service packet forwarded by the second slave node.

该步骤的具体说明可参照上述步骤1403的相关表述。For a specific description of this step, reference may be made to the relevant expression of the above-mentioned step 1403 .

本申请实施例中，在第一从节点向第一根节点发送业务报文时，以第二从节点作为中继，转发该业务报文，从而提升通信性能，确保业务稳定运行；同时，无需通过第二根节点转发，从而减少了第一根节点与第二根节点之间的报文交互，节省了带宽。In the embodiment of the present application, when the first slave node sends a service message to the first root node, the second slave node is used as a relay to forward the service message, thereby improving communication performance and ensuring stable operation of the service; at the same time, no Forwarding through the second root node reduces message interaction between the first root node and the second root node and saves bandwidth.

举例来说，图18a示出了图1中的低压台区1中节点间另一种进行业务通信的示意图，在图18a中，从节点STA1、STA2、STA6为根节点CCO2对应的从节点，从节点STA3、STA4、STA5为根节点CCO1对应的从节点。如图18a所示，根节点CCO2向从节点STA6发送业务报文时，通信路径可以为CCO2->STA3->STA6，即根节点CCO2可以将业务报文发送给从节点STA3，并由从节点STA3转发至从节点STA6。图18b示出了图1中的低压台区1中节点间另一种进行业务通信的示意图；在图18b中，从节点STA1、STA2、STA6为根节点CCO2对应的从节点，从节点STA3、STA4、STA5为根节点CCO1对应的从节点；如图18b所示，从节点STA6向根节点CCO2发送业务报文时，通信路径可以为STA6->STA3->CCO2，即从节点STA6可以将业务报文发送给从节点STA3，并由从节点STA3转发至根节点CCO2；从而实现根节点CCO2与从节点STA6之间的双向业务报文交互。For example, Fig. 18a shows a schematic diagram of another kind of business communication between nodes in the low-voltage station area 1 in Fig. 1. In Fig. 18a, the slave nodes STA1, STA2, and STA6 are the slave nodes corresponding to the root node CCO2, The slave nodes STA3, STA4, and STA5 are slave nodes corresponding to the root node CCO1. As shown in Figure 18a, when the root node CCO2 sends a service message to the slave node STA6, the communication path can be CCO2->STA3->STA6, that is, the root node CCO2 can send the service message to the slave node STA3, and the slave node STA3 forwards it to the slave node STA6. Figure 18b shows another schematic diagram of service communication between nodes in the low-voltage station area 1 in Figure 1; in Figure 18b, slave nodes STA1, STA2, and STA6 are slave nodes corresponding to the root node CCO2, and slave nodes STA3, STA4 and STA5 are the slave nodes corresponding to the root node CCO1; as shown in Figure 18b, when the slave node STA6 sends a service message to the root node CCO2, the communication path can be STA6->STA3->CCO2, that is, the slave node STA6 can transfer the service The message is sent to the slave node STA3, and forwarded by the slave node STA3 to the root node CCO2; thus realizing the two-way service message exchange between the root node CCO2 and the slave node STA6.

需要说明的是，除上述方式以外，第一根节点还可以根据路由信息，直接与第一从节点进行业务通信，或者由其他第一根节点对应的从节点中除第一从节点外的其他从节点转发，实现与第一从节点的业务通信。例如，如上述图15a所示，根节点CCO1与其对应的从节点STA2进行业务通信时，根节点CCO1可以直接向从节点STA2发送业务报文；根节点CCO1与从节点STA4进行业务通信时，根节点CCO1可以将业务报文发送到从节点STA2，并由从节点STA2转发至从节点STA4。It should be noted that, in addition to the above methods, the first root node can also directly communicate with the first slave node according to the routing information, or other slave nodes corresponding to other first root nodes except the first slave node The slave node forwards to implement service communication with the first slave node. For example, as shown in Figure 15a above, when the root node CCO1 conducts business communication with its corresponding slave node STA2, the root node CCO1 can directly send service messages to the slave node STA2; when the root node CCO1 conducts business communication with the slave node STA4, the root The node CCO1 can send the service message to the slave node STA2, and the slave node STA2 forwards it to the slave node STA4.

这样，第一根节点与第一根节点对应的从节点可以通过上述方式进行业务通信，示例性地，第一根节点在向第一根节点对应的从节点发送业务报文时，业务报文中可以包括目的节点标识和下一级节点标识，其中，目的节点为第一根节点对应的从节点；下一级节点可以为第二根节点对应的从节点、第二根节点或第一根节点对应的从节点中除上述目的节点之外的任一从节点。第一从节点向第一根节点发送业务报文时，该业务报文可以包括目的节点标识和下一级节点标识；其中，目的节点为第一根节点，下一级节点可以为第一根节点对应的从节点或第二根节点对应的从节点。In this way, the first root node and the slave node corresponding to the first root node can perform business communication through the above method. For example, when the first root node sends a service message to the slave node corresponding to the first root node, the service message may include the target node ID and the next-level node ID, wherein the target node is the slave node corresponding to the first root node; the next-level node can be the slave node corresponding to the second root node, the second root node or the first root node Any slave node other than the above-mentioned destination node among the slave nodes corresponding to the node. When the first slave node sends a service message to the first root node, the service message may include a destination node identifier and a lower-level node identifier; wherein, the destination node is the first root node, and the lower-level node may be the first root node The slave node corresponding to the node or the slave node corresponding to the second root node.

区别于相关技术中在第一根节点对应的从节点与第二根节点对应的从节点在通信链路层分属于不同拓扑网络时，第一根节点在向第一从节点发送业务报文的时候，通信路径只能包括第一根节点的从节点，这样，通信路径可能较长，信道衰减和噪声较大，通信稳定性和可靠性较差；本申请实施例中，由于第一根节点、第一根节点对应的从节点、第二根节点和第二根节点对应的从节点在通信链路层属于同一个网络，第一根节点可以获取第二根节点的从节点的路由信息，在向第一从节点发送业务报文的时候，通信路径并不是只能包括第一根节点的从节点，第一根节点可以综合考虑第一根节点的从节点以、第二根节点的从节点及第二根节点，选择最优的发送路径；即第一根节点与第一从节点交互业务报文时，可以以第二根节点、第一根节点对应的从节点中除第一从节点之外的任一从节点或第二根节点对应的从节点中至少一个节点作为中继，转发该业务报文，通信路径较短，通信更加稳定和可靠，从而提升通信性能，确保业务的稳定运行。同时，在第一根节点及第二根节点与各自对应的从节点交互业务报文时，第一根节点及第二根节点独立管理和运行各自的业务，互不干扰，满足业务需求。Different from when the slave node corresponding to the first root node and the slave node corresponding to the second root node belong to different topology networks at the communication link layer in the related art, when the first root node sends a service message to the first slave node At this time, the communication path can only include the slave nodes of the first root node. In this way, the communication path may be longer, the channel attenuation and noise are larger, and the communication stability and reliability are poor; in the embodiment of this application, because the first root node , the slave node corresponding to the first root node, the second root node and the slave node corresponding to the second root node belong to the same network at the communication link layer, the first root node can obtain the routing information of the slave node of the second root node, When sending a service message to the first slave node, the communication path does not only include the slave nodes of the first root node. The first root node can comprehensively consider the slave nodes of the first root node and the slave nodes of the second root node. Node and the second root node, select the optimal transmission path; that is, when the first root node exchanges business messages with the first slave node, the first slave node can be divided by the second root node and the slave node corresponding to the first root node. Any slave node other than the node or at least one of the slave nodes corresponding to the second root node acts as a relay to forward the service message, the communication path is shorter, and the communication is more stable and reliable, thereby improving communication performance and ensuring business continuity. Stable operation. At the same time, when the first root node and the second root node exchange service messages with their corresponding slave nodes, the first root node and the second root node independently manage and run their respective services without interfering with each other to meet business needs.

进一步地，考虑到低压台区中存在大量报文交互时，存在网络拥塞的风险，因此，第一根节点和/或第二根节点还可以监听低压台区中的流量信息，并在流量信息过大时，进行带宽协调，从而确保报文传输的实时性，避免出现网络拥塞。Further, considering that there is a risk of network congestion when there are a large number of message exchanges in the low-voltage station area, the first root node and/or the second root node can also monitor the flow information in the low-voltage station area, and in the flow information When it is too large, bandwidth coordination is performed to ensure real-time packet transmission and avoid network congestion.

图19示出了本申请一实施例的一种进行带宽协调的流程图，如图19所示，可以包括以下步骤：Fig. 19 shows a flowchart of bandwidth coordination according to an embodiment of the present application. As shown in Fig. 19, the following steps may be included:

步骤1901、第一根节点监听第一根节点所在低压台区中的流量信息。Step 1901, the first root node monitors the flow information in the low-voltage station area where the first root node is located.

其中，流量信息包括单位时间监听到的第一根节点所在低压台区的报文总量。Wherein, the flow information includes the total amount of messages monitored per unit time in the low-voltage station area where the first root node is located.

可选的，第一根节点可以与第二根节点交互各自所监听到的流量信息。Optionally, the first root node may exchange monitored traffic information with the second root node.

步骤1902、在流量信息满足预设条件的情况下，第一根节点向第二根节点发送带宽协商报文。Step 1902, when the flow information satisfies the preset condition, the first root node sends a bandwidth negotiation message to the second root node.

其中，带宽协商报文用于确定第一根节点所在低压台区中各待发送报文的优先级。Wherein, the bandwidth negotiation message is used to determine the priority of each message to be sent in the low-voltage station area where the first root node is located.

示例性地，预设条件可以为低压台区的报文总量超过一定阈值，当流量信息超过该阈值时，表明低压台区中存在大量待发送报文，存在网络拥塞的风险；此时，第一根节点向第二根节点发送带宽协商报文，触发带宽协商。Exemplarily, the preset condition may be that the total amount of messages in the low-voltage station area exceeds a certain threshold. When the flow information exceeds the threshold, it indicates that there are a large number of messages to be sent in the low-voltage station area, and there is a risk of network congestion; at this time, The first root node sends a bandwidth negotiation message to the second root node to trigger bandwidth negotiation.

步骤1903、第二根节点接收第一根节点的带宽协商报文。Step 1903, the second root node receives the bandwidth negotiation message of the first root node.

可以理解的是，第一根节点与第二根节点之间可以进行一次或多次带宽协商报文交互，从而确定低压台区中各待发送报文的优先级。It can be understood that one or more bandwidth negotiation message exchanges may be performed between the first root node and the second root node, so as to determine the priority of each message to be sent in the low-voltage station area.

示例性地，第一根节点与第二根节点可以定义相同的服务质量(Quality ofService，QoS)机制对各待发送报文进行优先级分类，即将实时性强且重要的业务报文设置为高优先级，将实时性相对不强的业务报文设置为较低优先级；例如，电能表充值对实时性要求高，电能表升级对实时性要求相对较低，因此，可以将指示电能表充值的业务报文设置为高优先级，将指示电能表升级的业务报文设置为较低优先级。Exemplarily, the first root node and the second root node can define the same Quality of Service (Quality of Service, QoS) mechanism to classify the priority of each message to be sent, that is, set the real-time and important service message to be high Priority, set the service packets with relatively low real-time performance to a lower priority; for example, the recharge of the electric energy meter has high real-time requirements, and the upgrade of the electric energy meter has relatively low real-time requirements. Set the service message of the energy meter as a high priority, and set the service message indicating the upgrade of the electric energy meter as a lower priority.

步骤1904、第一根节点根据所确定的各待发送报文的优先级，发送各待发送报文。Step 1904, the first root node sends each message to be sent according to the determined priority of each message to be sent.

该步骤，第一根节点优先发送各待发送报文中优先级高的报文，从而保证高优先级的报文传输的实时性，从而保证业务的稳定运行。例如，各待发送报文包括指示电能表充值的业务报文、指示电能表升级的业务报文、指示智能断路器开关升级的业务报文，则第一根节点优先发送指示电能表升级的业务报文；进而根据指示电能表升级的业务报文与指示智能断路器开关升级的业务报文的优先级高低，发送这两个报文。In this step, the first root node gives priority to sending messages with higher priority among the messages to be sent, so as to ensure real-time transmission of high-priority messages, thereby ensuring stable operation of services. For example, each message to be sent includes a service message indicating the recharge of the electric energy meter, a service message indicating the upgrade of the electric energy meter, and a service message indicating the upgrade of the smart circuit breaker switch. message; and then send these two messages according to the priority of the service message indicating the upgrade of the electric energy meter and the service message indicating the upgrade of the smart circuit breaker switch.

步骤1905、第二根节点根据所确定的各待发送报文的优先级，发送各待发送报文。Step 1905, the second root node sends each message to be sent according to the determined priority of each message to be sent.

该步骤可参见上述步骤1904。For this step, refer to step 1904 above.

本申请实施例中，第一根节点与第二根节点可以在流量信息满足预设条件的情况下，进行带宽协调，并根据所确定的各待发送报文的优先级，发送各待发送报文，从而确保报文传输的实时性，避免出现网络拥塞。In this embodiment of the application, the first root node and the second root node can perform bandwidth coordination when the traffic information meets the preset conditions, and send each message to be sent according to the determined priority of each message to be sent. To ensure the real-time performance of message transmission and avoid network congestion.

基于上述方法实施例的同一发明构思，本申请的实施例还提供了一种电力线低压台区的通信装置，该电力线低压台区的通信装置可以用于执行上述方法实施例所描述的技术方案。Based on the same inventive concept of the above-mentioned method embodiments, the embodiments of the present application also provide a communication device for a power line low-voltage station area, which can be used to implement the technical solutions described in the above-mentioned method embodiments.

图20示出了本申请一实施例的一种电力线低压台区的通信装置的结构示意图，如图20所示，该装置可以包括：第一接收模块2001，用于第一根节点接收目标从节点的接入网络请求报文，所述接入网络请求报文包括所述目标从节点的身份信息；第一组网模块2002，用于所述第一根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第一根节点所在的低压台区；其中，所述目标从节点包括所述第一根节点对应的从节点，及第二根节点对应的从节点。Fig. 20 shows a schematic structural diagram of a communication device in a power line low-voltage station area according to an embodiment of the present application. As shown in Fig. 20, the device may include: afirst receiving module 2001, used for the first root node to receive the target slave A node's access network request message, the access network request message including the identity information of the target slave node; thefirst networking module 2002, used for the first root node according to the identity information of the target slave node information, to determine whether the target slave node is connected to the low-voltage station area where the first root node is located; wherein, the target slave node includes the slave node corresponding to the first root node, and the slave node corresponding to the second root node node.

在一种可能的实现方式中，所述第一组网模块2002，还用于：所述第一根节点在所述第一根节点对应的白名单中查找所述目标从节点的身份信息，所述第一根节点对应的白名单包括所述第一根节点对应的从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单的情况下，所述第一根节点向所述目标从节点发送接入网络成功报文；否则，所述第一根节点向所述第二根节点发送所述接入网络请求报文。In a possible implementation manner, thefirst networking module 2002 is further configured to: the first root node searches for the identity information of the target slave node in the whitelist corresponding to the first root node, The white list corresponding to the first root node includes the identity information of the slave node corresponding to the first root node; when the identity information of the target slave node belongs to the white list corresponding to the first root node, the The first root node sends a network access success message to the target slave node; otherwise, the first root node sends the network access request message to the second root node.

在一种可能的实现方式中，所述第一组网模块2002，还用于：所述第一根节点接收所述第二根节点发送的所述目标从节点的接入网络请求报文；所述第一根节点在所述第一根节点对应的白名单中查找所述目标从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单的情况下，所述第一根节点向所述第二根节点发送接入网络成功报文，并由所述第二根节点转发至所述目标从节点。In a possible implementation manner, thefirst networking module 2002 is further configured to: the first root node receives the network access request message of the target slave node sent by the second root node; The first root node searches for the identity information of the target slave node in the white list corresponding to the first root node; when the identity information of the target slave node belongs to the white list corresponding to the first root node Next, the first root node sends a network access success message to the second root node, and the second root node forwards it to the target slave node.

在一种可能的实现方式中，所述组网模块2002，还用于：所述第一根节点接收所述第二根节点对应的白名单；所述第二根节点对应的白名单包括所述第二根节点对应的从节点的身份信息；所述第一根节点在所述第一根节点对应的白名单及所述第二根节点对应的白名单中查找所述目标从节点的身份信息；在所述目标从节点的身份信息属于所述第一根节点对应的白名单或所述第二根节点对应的白名单的情况下，所述第一根节点向所述目标从节点发送接入网络成功报文。In a possible implementation manner, thenetworking module 2002 is further configured to: the first root node receives a whitelist corresponding to the second root node; the whitelist corresponding to the second root node includes the The identity information of the slave node corresponding to the second root node; the first root node searches for the identity of the target slave node in the white list corresponding to the first root node and the white list corresponding to the second root node information; when the identity information of the target slave node belongs to the white list corresponding to the first root node or the white list corresponding to the second root node, the first root node sends to the target slave node Access to the network success message.

在一种可能的实现方式中，所述组网模块2002，还用于：所述第一根节点向所述第二根节点发送所述第一根节点对应的白名单。In a possible implementation manner, thenetworking module 2002 is further configured to: the first root node sends a whitelist corresponding to the first root node to the second root node.

在一种可能的实现方式中，所述装置还包括第一配对模块，用于：所述第一根节点监听网络中的根节点；所述网络包括至少一个低压台区；所述第一根节点在所监听到的根节点中，确定与所述第一根节点匹配的第二根节点。In a possible implementation manner, the device further includes a first pairing module, configured to: the first root node listens to a root node in the network; the network includes at least one low-voltage station area; the first root node The node determines a second root node matching the first root node among the monitored root nodes.

在一种可能的实现方式中，所述装置还包括第一同步模块，用于：所述第一根节点接收所述第一根节点对应的从节点的网络信息，所述第一根节点对应的从节点的网络信息包括：所述第一根节点对应的从节点的离线信息或所述第一根节点对应的从节点的在线信息中的至少一项；所述第一根节点根据所接收的所述第一根节点对应的从节点的网络信息，更新所述第一根节点对应的路由信息；所述第一根节点对应的路由信息包括所述第一根节点与所述第一根节点对应的从节点之间的通信路径或第一路由度量值中的至少一项；所述第一根节点向所述第二根节点发送所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息；或者，所述第一根节点接收所述第一根节点对应的从节点的网络信息；所述第一根节点根据所接收的所述第一根节点对应的从节点的网络信息，更新所述第一根节点对应的路由信息；所述第一根节点接收所述第二根节点的获取网络信息请求报文；所述第一根节点向所述第二根节点发送所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息。In a possible implementation manner, the device further includes a first synchronization module, configured to: the first root node receives network information of a slave node corresponding to the first root node, and the first root node corresponds to The network information of the slave node includes: at least one of the offline information of the slave node corresponding to the first root node or the online information of the slave node corresponding to the first root node; the first root node according to the received The network information of the slave node corresponding to the first root node, and update the routing information corresponding to the first root node; the routing information corresponding to the first root node includes the first root node and the first root node At least one of the communication path between the slave nodes corresponding to the node or the first routing metric value; the first root node sends the network information and the slave node corresponding to the first root node to the second root node /or the routing information corresponding to the first root node; or, the first root node receives the network information of the slave node corresponding to the first root node; the first root node receives the first root node according to the received first the network information of the slave node corresponding to the root node, and update the routing information corresponding to the first root node; the first root node receives the network information acquisition request message of the second root node; the first root node sends The second root node sends the network information of the slave node corresponding to the first root node and/or the routing information corresponding to the first root node.

在一种可能的实现方式中，所述第一同步模块，还用于：所述第一根节点接收所述第二根节点发送的所述第二根节点对应的从节点的网络信息和/或所述第二根节点对应的路由信息；所述第二根节点对应的从节点的网络信息包括：所述第二根节点对应的从节点的离线信息或所述第二根节点对应的从节点的在线信息中的至少一项；所述第二根节点对应的路由信息包括所述第二根节点与所述第二根节点对应的从节点之间的通信路径或第二路由度量值中的至少一项；或者，所述第一根节点向所述第二根节点发送获取网络信息请求报文；所述第一根节点接收所述第二根节点发送的所述第二根节点对应的从节点的网络信息和/或所述第二根节点对应的路由信息。In a possible implementation manner, the first synchronization module is further configured to: the first root node receives the network information of the slave node corresponding to the second root node sent by the second root node and/or Or the routing information corresponding to the second root node; the network information of the slave node corresponding to the second root node includes: the offline information of the slave node corresponding to the second root node or the slave node corresponding to the second root node At least one of the online information of the node; the routing information corresponding to the second root node includes the communication path between the second root node and the slave node corresponding to the second root node or the second routing metric value or, the first root node sends a network information request message to the second root node; the first root node receives the second root node corresponding to the second root node sent by the second root node The network information of the slave node and/or the routing information corresponding to the second root node.

在一种可能的实现方式中，所述装置还包括第一业务模块，用于：所述第一根节点发送第一业务报文，所述第一业务报文中包括第一目的节点标识和下一级节点标识，其中，所述第一目的节点为所述第一根节点对应的第一从节点，所述第一从节点为所述第一根节点对应的从节点中的任一个从节点，所述第一下一级节点为所述第二根节点对应的从节点、所述第二根节点或所述第一根节点对应的第二从节点中的任一节点，所述第二从节点为所述第一根节点对应的从节点中除所述第一从节点之外的任一个从节点；或者，所述第一根节点接收第二业务报文，所述第二业务报文中包括第二目的节点标识，其中，所述第二目的节点为所述第二根节点对应的从节点或所述第二根节点。In a possible implementation manner, the device further includes a first service module, configured to: the first root node sends a first service message, and the first service message includes the first destination node identifier and The next-level node identifier, wherein the first destination node is the first slave node corresponding to the first root node, and the first slave node is any one of the slave nodes corresponding to the first root node node, the first lower-level node is any one of the slave node corresponding to the second root node, the second root node, or the second slave node corresponding to the first root node, and the second The second slave node is any slave node other than the first slave node among the slave nodes corresponding to the first root node; or, the first root node receives a second service message, and the second service The message includes a second destination node identifier, where the second destination node is a slave node corresponding to the second root node or the second root node.

在一种可能的实现方式中，所述第一业务模块，还用于：在所述第一根节点无法获取到达目的节点的路由信息的情况下，所述第一根节点将第三业务报文发送给所述第二根节点，并由所述第二根节点转发至所述目的节点；所述目的节点为所述第一根节点对应的从节点；或者，所述第一根节点接收所述第二根节点转发的第四业务报文，所述第四业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the first service module is further configured to: when the first root node cannot obtain routing information to the destination node, the first root node reports the third service The text is sent to the second root node, and forwarded by the second root node to the destination node; the destination node is the slave node corresponding to the first root node; or, the first root node receives The fourth service message forwarded by the second root node, where the fourth service message is a message sent to the first root node by a slave node corresponding to the first root node.

在一种可能的实现方式中，所述第一业务模块，还用于：所述第一根节点将第五业务报文发送给所述第二根节点对应的从节点，并由所述第二根节点对应的从节点转发至目的节点；所述目的节点为所述第一根节点对应的从节点；或者，所述第一根节点接收所述第二根节点对应的从节点转发的第六业务报文，所述第六业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the first service module is further configured to: the first root node sends the fifth service message to the slave node corresponding to the second root node, and the fifth service packet is sent by the first root node The slave node corresponding to the second root node forwards to the destination node; the destination node is the slave node corresponding to the first root node; or, the first root node receives the second root node forwarded by the slave node corresponding to the second root node Six service messages, the sixth service message is a message sent to the first root node by the slave node corresponding to the first root node.

在一种可能的实现方式中，所述装置还包括第一流量控制模块，用于：所述第一根节点监听所述第一根节点所在低压台区中的流量信息；所述流量信息包括单位时间监听到的所述第一根节点所在低压台区的报文总量；在所述流量信息满足预设条件的情况下，所述第一根节点向所述第二根节点发送带宽协商报文；所述带宽协商报文用于确定所述第一根节点所在低压台区中各待发送报文的优先级；所述第一根节点根据所述各待发送报文的优先级，发送所述各待发送报文；或者，所述第一根节点接收所述第二根节点的带宽协商报文，所述带宽协商报文用于确定所述第一根节点所在低压台区中各待发送报文的优先级；所述第一根节点根据所确定的各待发送报文的优先级，发送所述各待发送报文。In a possible implementation manner, the device further includes a first flow control module, configured to: the first root node monitors flow information in the low-voltage platform area where the first root node is located; the flow information includes The total amount of messages monitored per unit time in the low-voltage station area where the first root node is located; when the flow information meets the preset conditions, the first root node sends a bandwidth negotiation to the second root node message; the bandwidth negotiation message is used to determine the priority of each message to be sent in the low-voltage station area where the first root node is located; the first root node according to the priority of each message to be sent, Send the messages to be sent; or, the first root node receives the bandwidth negotiation message of the second root node, and the bandwidth negotiation message is used to determine the location of the first root node in the low-voltage station area the priority of each message to be sent; the first root node sends each message to be sent according to the determined priority of each message to be sent.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别或三相不平衡治理中的至少一项。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification or at least one of three-phase unbalance treatment.

本申请实施例中，电力线低压台区的通信装置及其各种可能的实现方式的具体说明及技术效果可以参照前文相关介绍，此处不再赘述。In the embodiment of the present application, the specific description and technical effect of the communication device in the power line low-voltage station area and its various possible implementations can refer to the relevant introduction above, and will not be repeated here.

图21示出了本申请实施例的另一种电力线低压台区的通信装置的结构示意图，如图21所示，该装置可以包括：第二接收模块2101，用于第二根节点接收目标从节点的接入网络请求报文，所述接入网络请求报文包括所述目标从节点的身份信息；第二组网模块2102，用于所述第二根节点根据所述目标从节点的身份信息，确定所述目标从节点是否接入所述第二根节点所在的低压台区；其中，所述目标从节点包括所述第二根节点对应的从节点，及第一根节点对应的从节点。Fig. 21 shows a schematic structural diagram of another communication device in a power line low-voltage station area according to an embodiment of the present application. As shown in Fig. 21, the device may include: asecond receiving module 2101, used for the second root node to receive the target slave A node's access network request message, the access network request message including the identity information of the target slave node; thesecond networking module 2102, used for the second root node according to the identity information of the target slave node information to determine whether the target slave node is connected to the low-voltage station area where the second root node is located; wherein, the target slave node includes the slave node corresponding to the second root node and the slave node corresponding to the first root node node.

在一种可能的实现方式中，所述第二组网模块2102，还用于：所述第二根节点接收所述第一根节点发送的所述目标从节点的接入网络请求报文；所述第二根节点在所述第二根节点对应的白名单中查找所述目标从节点的身份信息；所述第二根节点对应的白名单包括所述第二根节点对应的从节点的身份信息；在所述目标从节点的身份信息属于所述第二根节点对应的白名单的情况下，所述第二根节点向所述第一根节点发送接入网络成功报文，并由所述第一根节点转发至所述目标从节点。In a possible implementation manner, thesecond networking module 2102 is further configured to: the second root node receives the network access request message of the target slave node sent by the first root node; The second root node searches the identity information of the target slave node in the white list corresponding to the second root node; the white list corresponding to the second root node includes the slave node corresponding to the second root node Identity information; when the identity information of the target slave node belongs to the white list corresponding to the second root node, the second root node sends a network access success message to the first root node, and the The first root node forwards to the target slave node.

在一种可能的实现方式中，所述第二组网模块2102，还用于：所述第二根节点向所述第一根节点发送所述第二根节点对应的白名单。In a possible implementation manner, thesecond networking module 2102 is further configured to: the second root node sends a whitelist corresponding to the second root node to the first root node.

在一种可能的实现方式中，所述装置还包括第二同步模块，用于：所述第二根节点接收所述第一根节点发送的所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息；所述第一根节点对应的从节点的网络信息包括：所述第一根节点对应的从节点的离线信息或所述第一根节点对应的从节点的在线信息中的至少一项；所述第一根节点对应的路由信息包括所述第一根节点与所述第一根节点对应的从节点之间的通信路径或第二路由度量值中的至少一项；或者，所述第二根节点向所述第一根节点发送获取网络信息请求报文；所述第二根节点接收所述第一根节点发送的所述第一根节点对应的从节点的网络信息和/或所述第一根节点对应的路由信息。In a possible implementation manner, the device further includes a second synchronization module, configured to: the second root node receives the network information of the slave node corresponding to the first root node sent by the first root node And/or the routing information corresponding to the first root node; the network information of the slave node corresponding to the first root node includes: the offline information of the slave node corresponding to the first root node or the corresponding At least one of the online information of the slave node; the routing information corresponding to the first root node includes a communication path or a second routing metric between the first root node and the slave node corresponding to the first root node at least one of the values; or, the second root node sends a network information request message to the first root node; the second root node receives the first root node sent by the first root node The network information of the slave node corresponding to the node and/or the routing information corresponding to the first root node.

在一种可能的实现方式中，所述装置还包括第二业务模块，用于：所述第二根节点接收第一业务报文，所述第一业务报文中包括第一目的节点标识，其中，所述第一目的节点为所述第一根节点对应的从节点或所述第一根节点。In a possible implementation manner, the device further includes a second service module, configured to: the second root node receives a first service message, the first service message includes the first destination node identifier, Wherein, the first destination node is a slave node corresponding to the first root node or the first root node.

在一种可能的实现方式中，所述第二业务模块，还用于：所述第二根节点接收所述第一根节点发送的第二业务报文，并将所述第二业务报文转发至目的节点，所述目的节点为所述第一根节点对应的从节点；或者，所述第二根节点接收第三业务报文，并将所述第三业务报文转发至所述第一根节点，所述第三业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the second service module is further configured to: the second root node receives the second service message sent by the first root node, and transmits the second service message Forwarding to a destination node, where the destination node is a slave node corresponding to the first root node; or, the second root node receives a third service message, and forwards the third service message to the first root node A node, the third service message is a message sent to the first root node by a slave node corresponding to the first root node.

在一种可能的实现方式中，所述装置还包括第二流量控制模块，用于：所述第二根节点接收所述第一根节点的带宽协商报文，所述带宽协商报文用于确定所述第二根节点所在低压台区中各待发送报文的优先级；所述第二根节点根据所确定的各待发送报文的优先级，发送所述各待发送报文。In a possible implementation manner, the device further includes a second flow control module, configured to: the second root node receives the bandwidth negotiation message of the first root node, and the bandwidth negotiation message is used for Determine the priority of each message to be sent in the low-voltage station area where the second root node is located; the second root node sends each message to be sent according to the determined priority of each message to be sent.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别或三相不平衡治理中的至少一项；或者，所述第一根节点用于设备配置业务，所述第二根节点用于营销采集抄表业务。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification, or three-phase imbalance control; or, the first root node is used for equipment configuration services, and the second root node is used for marketing collection Meter reading business.

本申请实施例中，电力线低压台区的通信装置及其各种可能的实现方式的具体说明及技术效果可以参照前文相关介绍，此处不再赘述。In the embodiment of the present application, the specific description and technical effect of the communication device in the power line low-voltage station area and its various possible implementations can refer to the relevant introduction above, and will not be repeated here.

图22示出了本申请实施例的另一种电力线低压台区的通信装置的结构示意图，如图22所示，该装置可以包括：发送模块2201，用于第一从节点向第一根节点发送接入网络请求报文，所述接入网络请求报文包括所述第一从节点的身份信息；入网模块2202，用于所述第一从节点接收所述第一根节点发送的接入网络成功报文，所述接入网络成功报文为表示所述第一从节点成功接入所述第一根节点所在的低压台区的报文；其中，所述第一从节点包括所述第一根节点对应的从节点，及所述第二根节点对应的从节点。Fig. 22 shows a schematic structural diagram of another communication device in a power line low-voltage station area according to an embodiment of the present application. As shown in Fig. 22, the device may include: Sending a network access request message, the network access request message including the identity information of the first slave node; anetwork access module 2202, configured for the first slave node to receive the access message sent by the first root node A network success message, the network access success message is a message indicating that the first slave node has successfully accessed the low-voltage station area where the first root node is located; wherein the first slave node includes the A slave node corresponding to the first root node, and a slave node corresponding to the second root node.

在一种可能的实现方式中，所述装置还包括上报模块，用于在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第一从节点向所述第一根节点发送所述第一从节点的网络信息，所述第一从节点的网络信息包括：所述第一从节点的离线信息或所述第一从节点的在线信息中的至少一项。In a possible implementation manner, the device further includes a reporting module, configured to report the first slave node to the The first root node sends the network information of the first slave node, and the network information of the first slave node includes: at least one of offline information of the first slave node or online information of the first slave node .

在一种可能的实现方式中，所述装置还包括第三业务模块，用于所述第一从节点发送第一业务报文，其中，所述第一业务报文包括第一目的节点标识和下一级节点标识；在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第一目的节点为所述第一根节点，所述第一下一级节点为所述第一根节点对应的从节点或所述第二根节点对应的从节点；或者，所述第一从节点接收第二业务报文，其中，所述第二业务报文包括第二目的节点标识；在所述第一从节点为所述第一根节点对应的从节点的情况下，所述第二目的节点为所述第二根节点或所述第二根节点对应的从节点。In a possible implementation manner, the device further includes a third service module, configured for the first slave node to send a first service message, where the first service message includes the first destination node identifier and Subordinate node identification; in the case where the first slave node is the slave node corresponding to the first root node, the first destination node is the first root node, and the first subordinate node is the slave node corresponding to the first root node or the slave node corresponding to the second root node; or, the first slave node receives a second service message, wherein the second service message includes the second Destination node identifier; when the first slave node is the slave node corresponding to the first root node, the second destination node is the second root node or the slave node corresponding to the second root node .

在一种可能的实现方式中，所述第三业务模块，还用于：所述第一从节点接收所述第一根节点发送的第三业务报文，并将所述第三业务报文转发至目的节点，所述目的节点为所述第一根节点对应的从节点；或者，所述第一从节点接收第四业务报文，并将所述第四业务报文转发至所述第一根节点，所述第四业务报文为所述第一根节点对应的从节点发送给所述第一根节点的报文。In a possible implementation manner, the third service module is further configured to: the first slave node receives the third service message sent by the first root node, and transmits the third service message Forwarding to a destination node, where the destination node is a slave node corresponding to the first root node; or, the first slave node receives a fourth service message, and forwards the fourth service message to the first root node A node, the fourth service message is a message sent to the first root node by a slave node corresponding to the first root node.

在一种可能的实现方式中，所述第一根节点用于营销采集抄表业务，所述第二根节点用于设备配置业务；所述设备配置业务包括：线路分支识别、停电故障点研判、线损分析和管理、线路故障预警、线路老化识别、三相不平衡治理中的至少一项；或者，所述第一根节点用于设备配置业务，所述第二根节点用于营销采集抄表业务。In a possible implementation, the first root node is used for marketing collection meter reading service, and the second root node is used for device configuration service; the device configuration service includes: line branch identification, power outage fault point research and judgment , line loss analysis and management, line fault early warning, line aging identification, and three-phase imbalance management; or, the first root node is used for equipment configuration services, and the second root node is used for marketing collection Meter reading business.

本申请实施例中，电力线低压台区的通信装置及其各种可能的实现方式的具体说明及技术效果可以参照前文相关介绍，此处不再赘述。In the embodiment of the present application, the specific description and technical effect of the communication device in the power line low-voltage station area and its various possible implementations can refer to the relevant introduction above, and will not be repeated here.

本申请实施例提供了另一种电力线低压台区的通信装置，该装置可以包括：处理器和传输接口；所述处理器通过所述传输接口接收或发送数据；所述处理器被配置为执行存储在存储器中的指令时实现上述任一实施例中的电力线低压台区的通信方法。An embodiment of the present application provides another communication device for a power line low-voltage station area, which may include: a processor and a transmission interface; the processor receives or sends data through the transmission interface; the processor is configured to execute The instructions stored in the memory are used to realize the communication method of the power line low-voltage station area in any of the above-mentioned embodiments.

图23示出了本申请实施例的另一种电力线低压台区的通信装置的结构示意图，如图23所示，该装置可以包括：至少一个处理器2301，通信线路2302，存储器2303以及至少一个传输接口2304。Fig. 23 shows a schematic structural diagram of another communication device for a power line low-voltage station area according to an embodiment of the present application. As shown in Fig. 23, the device may include: at least oneprocessor 2301, a communication line 2302, amemory 2303 and at least onetransmission interface 2304 .

处理器2301可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。Theprocessor 2301 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, a specific application integrated circuit (application-specific integrated circuit, ASIC), or one or more devices used to control the execution of the program program of this application. integrated circuit.

通信线路2302可包括一通路，在上述组件之间传送信息。Communications link 2302 may include a path for passing information between the components described above.

传输接口2304，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，RAN，PLC网络、无线局域网(wireless local area networks，WLAN)等。Thetransmission interface 2304 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, RAN, PLC network, wireless local area networks (wireless local area networks, WLAN) and so on.

存储器2303可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compactdisc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路2302与处理器相连接。存储器也可以和处理器集成在一起。本申请实施例提供的存储器通常可以具有非易失性。其中，存储器2303用于存储执行本申请方案的计算机执行指令，并由处理器2301来控制执行。处理器2301用于执行存储器2303中存储的计算机执行指令，从而实现本申请上述任一实施例中提供的方法。Thememory 2303 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, a random access memory (random access memory, RAM) or other types that can store information and instructions The dynamic storage device can also be an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a read-only disc (compactdisc read-only memory, CD-ROM) or other optical disc storage, optical disc storage ( including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be stored by a computer Any other medium, but not limited to. The memory may exist independently and be connected to the processor through the communication line 2302 . Memory can also be integrated with the processor. The memory provided by the embodiment of the present application may generally be non-volatile. Wherein, thememory 2303 is used to store computer-executed instructions for implementing the solutions of the present application, and the execution is controlled by theprocessor 2301 . Theprocessor 2301 is configured to execute computer-executed instructions stored in thememory 2303, so as to implement the method provided in any one of the above-mentioned embodiments of the present application.

可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。Optionally, the computer-executed instructions in the embodiments of the present application may also be referred to as application program codes, which is not specifically limited in the embodiments of the present application.

在具体实现中，作为一种实施例，处理器2301可以包括一个或多个CPU，例如图23中的CPU0和CPU1。In a specific implementation, as an example, theprocessor 2301 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 23 .

在具体实现中，作为一种实施例，通信装置可以包括多个处理器，例如图23中的处理器2301和处理器2307。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。In a specific implementation, as an embodiment, the communication device may include multiple processors, for example, theprocessor 2301 and theprocessor 2307 in FIG. 23 . Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

在具体实现中，作为一种实施例，该装置还可以包括输出设备2305和输入设备2306。输出设备2305和处理器2301通信，可以以多种方式来显示信息。例如，输出设备2305可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备2306和处理器2301通信，可以以多种方式接收用户的输入。例如，输入设备2306可以是鼠标、键盘、触摸屏设备或传感设备等。In a specific implementation, as an example, the apparatus may further include anoutput device 2305 and aninput device 2306 .Output device 2305 is in communication withprocessor 2301 and can display information in a variety of ways. For example, theoutput device 2305 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a cathode ray tube (cathode ray tube, CRT) display device, or a projector (projector) Wait. Theinput device 2306 communicates with theprocessor 2301 and can receive user input in various ways. For example, theinput device 2306 may be a mouse, a keyboard, a touch screen device, or a sensory device, among others.

作为一个示例，结合图23所示的装置，图20中的第一接收模块2001可以由图23中的传输接口2304，第一组网模块2002可以由图23中的处理器2301来实现，本申请实施例对此不作任何限制。As an example, in combination with the device shown in FIG. 23 , thefirst receiving module 2001 in FIG. 20 can be implemented by thetransmission interface 2304 in FIG. 23 , and thefirst networking module 2002 can be implemented by theprocessor 2301 in FIG. 23 . The application embodiment does not impose any limitation on this.

作为另一个示例，结合图23所示的装置，图21中的第二接收模块2101可以由图23中的传输接口2304，第二组网模块2102可以由图23中的处理器2301来实现，本申请实施例对此不作任何限制。As another example, in combination with the apparatus shown in FIG. 23 , thesecond receiving module 2101 in FIG. 21 may be implemented by thetransmission interface 2304 in FIG. 23 , and thesecond networking module 2102 may be implemented by theprocessor 2301 in FIG. 23 , The embodiments of the present application do not impose any limitation on this.

作为另一个示例，结合图23所示的装置，图22中的发送模块2201可以由图23中的传输接口2304，入网模块2202可以由图23中的处理器2301来实现，本申请实施例对此不作任何限制。As another example, in combination with the device shown in FIG. 23, the sendingmodule 2201 in FIG. 22 can be realized by thetransmission interface 2304 in FIG. 23, and thenetwork access module 2202 can be realized by theprocessor 2301 in FIG. This is without any limitation.

本申请实施例提供了一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序指令，当计算机程序指令被计算机或处理器执行时实现本申请上述任一实施例中提供的方法。示例性地，可以执行上述图4、图5、图7、图8、图9、图11、图12、图13、图14、图16、图17或图19中至少一个图中的发送侧或接收侧的方法。An embodiment of the present application provides a computer-readable storage medium, on which computer program instructions are stored, and when the computer program instructions are executed by a computer or a processor, the method provided in any of the above-mentioned embodiments of the present application is implemented. Exemplarily, the sending side in at least one of the above-mentioned figures 4, 5, 7, 8, 9, 11, 12, 13, 14, 16, 17 or 19 may be executed or methods on the receiving side.

本申请实施例提供了一种包含指令的计算机程序产品，当指令在计算机或处理器上运行时，使得计算机或处理器执行本申请上述任一实施例中提供的方法。示例性地，可以执行上述图4、图5、图7、图8、图9、图11、图12、图13、图14、图16、图17或图19中至少一个图中的发送侧或接收侧的方法。An embodiment of the present application provides a computer program product containing instructions, and when the instructions are run on a computer or a processor, the computer or processor is made to execute the method provided in any of the above-mentioned embodiments of the present application. Exemplarily, the sending side in at least one of the above-mentioned figures 4, 5, 7, 8, 9, 11, 12, 13, 14, 16, 17 or 19 may be executed or methods on the receiving side.

计算机可读存储介质可以是可以保持和存储由指令执行设备使用的指令的有形设备。计算机可读存储介质例如可以是――但不限于――电存储设备、磁存储设备、光存储设备、电磁存储设备、半导体存储设备或者上述的任意合适的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：便携式计算机盘、硬盘、随机存取存储器(RandomAccess Memory，RAM)、只读存储器(Read Only Memory，ROM)、可擦式可编程只读存储器(Electrically Programmable Read-Only-Memory，EPROM或闪存)、静态随机存取存储器(Static Random-Access Memory，SRAM)、便携式压缩盘只读存储器(Compact Disc Read-Only Memory，CD-ROM)、数字多功能盘(Digital Video Disc，DVD)、记忆棒、软盘、机械编码设备、例如其上存储有指令的打孔卡或凹槽内凸起结构、以及上述的任意合适的组合。A computer readable storage medium may be a tangible device that can retain and store instructions for use by an instruction execution device. A computer readable storage medium may be, for example, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (Random Access Memory, RAM), read-only memory (Read Only Memory, ROM), erasable Electrically Programmable Read-Only-Memory (EPROM or flash memory), Static Random-Access Memory (Static Random-Access Memory, SRAM), Portable Compact Disk Read-Only Memory (Compact Disc Read-Only Memory, CD- ROM), Digital Video Disc (DVD), memory sticks, floppy disks, mechanically encoded devices, such as punched cards or raised structures in grooves with instructions stored thereon, and any suitable combination of the foregoing.

这里所描述的计算机可读程序指令或代码可以从计算机可读存储介质下载到各个计算/处理设备，或者通过网络、例如因特网、局域网、广域网和/或无线网下载到外部计算机或外部存储设备。网络可以包括铜传输电缆、光纤传输、无线传输、路由器、防火墙、交换机、网关计算机和/或边缘服务器。每个计算/处理设备中的网络适配卡或者网络接口从网络接收计算机可读程序指令，并转发该计算机可读程序指令，以供存储在各个计算/处理设备中的计算机可读存储介质中。Computer readable program instructions or codes described herein may be downloaded from a computer readable storage medium to a respective computing/processing device, or downloaded to an external computer or external storage device over a network, such as the Internet, local area network, wide area network, and/or wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and/or edge servers. A network adapter card or a network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing/processing device .

用于执行本申请操作的计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture，ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码，所述编程语言包括面向对象的编程语言—诸如Smalltalk、C++等，以及常规的过程式编程语言—诸如“C”语言或类似的编程语言。计算机可读程序指令可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络—包括局域网(Local Area Network，LAN)或广域网(WideArea Network，WAN)—连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。在一些实施例中，通过利用计算机可读程序指令的状态信息来个性化定制电子电路，例如可编程逻辑电路、现场可编程门阵列(Field-ProgrammableGate Array，FPGA)或可编程逻辑阵列(Programmable Logic Array，PLA)，该电子电路可以执行计算机可读程序指令，从而实现本申请的各个方面。Computer program instructions for performing the operations of the present application may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or in one or more source or object code written in any combination of programming languages, including object-oriented programming languages—such as Smalltalk, C++, etc., and conventional procedural programming languages—such as the “C” language or similar programming languages. Computer readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server implement. In cases involving a remote computer, the remote computer can be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or it can be connected to an external computer (e.g., using Internet Service Provider to connect via the Internet). In some embodiments, electronic circuits, such as programmable logic circuits, field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or programmable logic arrays (Programmable Logic Array, PLA), the electronic circuit can execute computer-readable program instructions, thereby realizing various aspects of the present application.

这里参照根据本申请实施例的方法、装置(系统)和计算机程序产品的流程图和/或框图描述了本申请的各个方面。应当理解，流程图和/或框图的每个方框以及流程图和/或框图中各方框的组合，都可以由计算机可读程序指令实现。Aspects of the present application are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It should be understood that each block of the flowcharts and/or block diagrams, and combinations of blocks in the flowcharts and/or block diagrams, can be implemented by computer-readable program instructions.

这些计算机可读程序指令可以提供给通用计算机、专用计算机或其它可编程数据处理装置的处理器，从而生产出一种机器，使得这些指令在通过计算机或其它可编程数据处理装置的处理器执行时，产生了实现流程图和/或框图中的一个或多个方框中规定的功能/动作的装置。也可以把这些计算机可读程序指令存储在计算机可读存储介质中，这些指令使得计算机、可编程数据处理装置和/或其他设备以特定方式工作，从而，存储有指令的计算机可读介质则包括一个制造品，其包括实现流程图和/或框图中的一个或多个方框中规定的功能/动作的各个方面的指令。These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine such that when executed by the processor of the computer or other programmable data processing apparatus , producing an apparatus for realizing the functions/actions specified in one or more blocks in the flowchart and/or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause computers, programmable data processing devices and/or other devices to work in a specific way, so that the computer-readable medium storing instructions includes An article of manufacture comprising instructions for implementing various aspects of the functions/acts specified in one or more blocks in flowcharts and/or block diagrams.

也可以把计算机可读程序指令加载到计算机、其它可编程数据处理装置、或其它设备上，使得在计算机、其它可编程数据处理装置或其它设备上执行一系列操作步骤，以产生计算机实现的过程，从而使得在计算机、其它可编程数据处理装置、或其它设备上执行的指令实现流程图和/或框图中的一个或多个方框中规定的功能/动作。It is also possible to load computer-readable program instructions into a computer, other programmable data processing device, or other equipment, so that a series of operational steps are performed on the computer, other programmable data processing device, or other equipment to produce a computer-implemented process , so that instructions executed on computers, other programmable data processing devices, or other devices implement the functions/actions specified in one or more blocks in the flowcharts and/or block diagrams.

附图中的流程图和框图显示了根据本申请的多个实施例的装置、系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或指令的一部分，所述模块、程序段或指令的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。The flowchart and block diagrams in the figures show the architecture, functions and operations of possible implementations of apparatuses, systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in a flowchart or block diagram may represent a module, a portion of a program segment, or an instruction that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved.

也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行相应的功能或动作的硬件(例如电路或ASIC(Application SpecificIntegrated Circuit，专用集成电路))来实现，或者可以用硬件和软件的组合，如固件等来实现。It should also be noted that each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented with hardware (such as circuits or ASIC (Application SpecificIntegrated Circuit, application-specific integrated circuit)), or can be implemented by a combination of hardware and software, such as firmware.

尽管在此结合各实施例对本发明进行了描述，然而，在实施所要求保护的本发明过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其它变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其它单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。Although the present invention has been described in conjunction with various embodiments herein, in the process of implementing the claimed invention, those skilled in the art can understand and Other variations of the disclosed embodiments are implemented. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

以上已经描述了本申请的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择，旨在最好地解释各实施例的原理、实际应用或对市场中的技术的改进，或者使本技术领域的其它普通技术人员能理解本文披露的各实施例。Having described various embodiments of the present application above, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope of the described embodiments. The terminology used herein is chosen to best explain the principle of each embodiment, practical application or improvement of technology in the market, or to enable other ordinary skilled in the art to understand each embodiment disclosed herein.

Claims (30)

1. A communication method for a low-voltage power line station, the method comprising:

a first root node receives an access network request message of a target slave node, wherein the access network request message comprises identity information of the target slave node;

the first root node determines whether the target slave node is accessed to a low-voltage distribution area where the first root node is located according to the identity information of the target slave node;

wherein the target slave node comprises a slave node corresponding to the first root node and a slave node corresponding to the second root node.

2. The method according to claim 1, wherein the first root node determines whether the target slave node accesses the low-voltage area where the first root node is located according to the identity information of the target slave node, including:

the first root node searches the identity information of the target slave node in a white list corresponding to the first root node, wherein the white list corresponding to the first root node comprises the identity information of the slave node corresponding to the first root node;

under the condition that the identity information of the target slave node belongs to a white list corresponding to the first root node, the first root node sends an access network success message to the target slave node;

otherwise, the first root node sends the access network request message to the second root node.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

the first root node receives an access network request message of the target slave node sent by the second root node;

the first root node searches the identity information of the target slave node in a white list corresponding to the first root node;

and under the condition that the identity information of the target slave node belongs to the white list corresponding to the first root node, the first root node sends an access network success message to the second root node, and the second root node forwards the access network success message to the target slave node.

4. The method according to claim 1 or 3, wherein the determining, by the first root node, whether the target slave node accesses the low-voltage area where the first root node is located according to the identity information of the target slave node comprises:

the first root node receives a white list corresponding to the second root node; the white list corresponding to the second root node comprises identity information of a slave node corresponding to the second root node;

the first root node searches the identity information of the target slave node in a white list corresponding to the first root node and a white list corresponding to the second root node;

and under the condition that the identity information of the target slave node belongs to the white list corresponding to the first root node or the white list corresponding to the second root node, the first root node sends an access network success message to the target slave node.

5. The method according to any one of claims 1-4, further comprising: and the first root node sends a white list corresponding to the first root node to the second root node.

6. The method according to any one of claims 1-5, further comprising:

the first root node monitors a root node in a network; the network comprises at least one low-voltage station area;

the first root node determines a second root node matching the first root node among the monitored root nodes.

7. The method according to any one of claims 1-6, further comprising:

the first root node receives network information of a slave node corresponding to the first root node, wherein the network information of the slave node corresponding to the first root node comprises: at least one of offline information of a slave node corresponding to the first root node or online information of a slave node corresponding to the first root node;

the first root node updates the routing information corresponding to the first root node according to the received network information of the slave node corresponding to the first root node; the routing information corresponding to the first root node comprises at least one of a communication path between the first root node and a slave node corresponding to the first root node or a first routing metric value;

the first root node sends network information of a slave node corresponding to the first root node and/or routing information corresponding to the first root node to the second root node;

or,

the first root node receives network information of a slave node corresponding to the first root node;

the first root node updates the routing information corresponding to the first root node according to the received network information of the slave node corresponding to the first root node;

the first root node receives a request message of the second root node for acquiring the network information;

and the first root node sends network information of a slave node corresponding to the first root node and/or routing information corresponding to the first root node to the second root node.

8. The method according to any one of claims 1-6, further comprising:

the first root node receives network information of a slave node corresponding to the second root node and/or routing information corresponding to the second root node, which are sent by the second root node; the network information of the slave node corresponding to the second root node includes: at least one of offline information of a slave node corresponding to the second root node or online information of a slave node corresponding to the second root node; the routing information corresponding to the second root node comprises at least one of a communication path between the second root node and a slave node corresponding to the second root node or a second routing metric value;

or,

the first root node sends a request message for acquiring network information to the second root node;

and the first root node receives network information of a slave node corresponding to the second root node and/or routing information corresponding to the second root node, which are sent by the second root node.

9. The method according to any one of claims 1-8, further comprising:

the first root node sends a first service message, where the first service message includes a first destination node identifier and a next-level node identifier, where the first destination node is a first slave node corresponding to the first root node, the first slave node is any one of slave nodes corresponding to the first root node, the first next-level node is any one of a slave node corresponding to the second root node, or a second slave node corresponding to the first root node, and the second slave node is any one of the slave nodes corresponding to the first root node except the first slave node;

or,

and the first root node receives a second service message, wherein the second service message comprises a second destination node identifier, and the second destination node is a slave node corresponding to the second root node or the second root node.

10. The method according to any one of claims 1-9, further comprising:

under the condition that the first root node cannot acquire routing information reaching a destination node, the first root node sends a third service message to the second root node, and the third service message is forwarded to the destination node by the second root node; the destination node is a slave node corresponding to the first root node; or,

and the first root node receives a fourth service message forwarded by the second root node, where the fourth service message is a message sent to the first root node by a slave node corresponding to the first root node.

11. The method according to any one of claims 1-10, further comprising:

the first root node monitors flow information in a low-voltage distribution room where the first root node is located; the flow information comprises the total amount of the messages of the low-voltage distribution area where the first root node is located, which are monitored in unit time;

under the condition that the flow information meets a preset condition, the first root node sends a bandwidth negotiation message to the second root node; the bandwidth negotiation message is used for determining the priority of each message to be sent in a low-voltage distribution area where the first root node is located;

the first root node sends each message to be sent according to the priority of each message to be sent;

or,

the first root node receives a bandwidth negotiation message of the second root node, wherein the bandwidth negotiation message is used for determining the priority of each message to be sent in a low-voltage platform area where the first root node is located;

and the first root node transmits each message to be transmitted according to the determined priority of each message to be transmitted.

12. The method of any of claims 1-11, wherein the first root node is for a marketing collection meter reading service and the second root node is for a device configuration service; the device configuration service includes: at least one of line branch identification, power failure fault point study and judgment, line loss analysis and management, line fault early warning, line aging identification or three-phase imbalance treatment;

or, the first root node is used for equipment configuration service, and the second root node is used for marketing acquisition meter reading service.

13. A communication method for a low-voltage power line station, the method comprising:

a first slave node sends an access network request message to a first root node, wherein the access network request message comprises identity information of the first slave node;

the first slave node receives an access network success message sent by the first root node, wherein the access network success message is a message indicating that the first slave node successfully accesses a low-voltage distribution room where the first root node is located;

wherein the first slave node includes a slave node corresponding to the first root node and a slave node corresponding to the second root node.

14. The method of claim 13, further comprising:

if the first slave node is a slave node corresponding to the first root node, the first slave node sends network information of the first slave node to the first root node, where the network information of the first slave node includes: at least one of offline information of the first slave node or online information of the first slave node.

15. The method according to claim 13 or 14, characterized in that the method further comprises:

the first slave node sends a first service message, wherein the first service message comprises a first destination node identifier and a next-level node identifier;

when the first slave node is a slave node corresponding to the first root node, the first destination node is the first root node, and the first lower-level node is a slave node corresponding to the first root node or a slave node corresponding to the second root node;

or,

the first slave node receives a second service message, wherein the second service message comprises a second destination node identifier;

and in a case that the first slave node is a slave node corresponding to the first root node, the second destination node is the second root node or a slave node corresponding to the second root node.

16. The method of any of claims 13-15, wherein the first root node is configured for a marketing collection meter reading service and the second root node is configured for a device configuration service; the device configuration service includes: at least one of line branch identification, power failure fault point study and judgment, line loss analysis and management, line fault early warning, line aging identification and three-phase imbalance treatment;

or, the first root node is used for equipment configuration service, and the second root node is used for marketing acquisition meter reading service.

17. A communication device for a low-voltage power line station, comprising: a receiving module, configured to receive, by a first root node, an access network request packet of a target slave node, where the access network request packet includes identity information of the target slave node; the networking module is used for determining whether the target slave node is accessed to a low-voltage distribution area where the first root node is located or not by the first root node according to the identity information of the target slave node; wherein the target slave node comprises a slave node corresponding to the first root node and a slave node corresponding to the second root node.

18. The apparatus of claim 17, wherein the networking module is further configured to: the first root node searches the identity information of the target slave node in a white list corresponding to the first root node, wherein the white list corresponding to the first root node comprises the identity information of the slave node corresponding to the first root node; under the condition that the identity information of the target slave node belongs to a white list corresponding to the first root node, the first root node sends an access network success message to the target slave node; otherwise, the first root node sends the access network request message to the second root node.

19. The apparatus of claim 17 or 18, wherein the networking module is further configured to: the first root node receives an access network request message of the target slave node sent by the second root node; the first root node searches the identity information of the target slave node in a white list corresponding to the first root node; and under the condition that the identity information of the target slave node belongs to the white list corresponding to the first root node, the first root node sends an access network success message to the second root node, and the second root node forwards the access network success message to the target slave node.

20. The apparatus of claim 17 or 19, wherein the networking module is further configured to: the first root node receives a white list corresponding to the second root node; the white list corresponding to the second root node comprises identity information of a slave node corresponding to the second root node; the first root node searches the identity information of the target slave node in a white list corresponding to the first root node and a white list corresponding to the second root node; and under the condition that the identity information of the target slave node belongs to the white list corresponding to the first root node or the white list corresponding to the second root node, the first root node sends an access network success message to the target slave node.

21. The apparatus according to any one of claims 17-20, wherein the networking module is further configured to: and the first root node sends a white list corresponding to the first root node to the second root node.

22. The apparatus according to any of claims 17-21, wherein the apparatus further comprises a pairing module configured to: the first root node monitors a root node in a network; the network includes at least one low-voltage zone; the first root node determines a second root node matching the first root node among the monitored root nodes.

23. The apparatus according to any of claims 17-22, further comprising a synchronization module configured to: the first root node receives network information of a slave node corresponding to the first root node, wherein the network information of the slave node corresponding to the first root node comprises: at least one of offline information of a slave node corresponding to the first root node or online information of a slave node corresponding to the first root node; the first root node updates the routing information corresponding to the first root node according to the received network information of the slave node corresponding to the first root node; the routing information corresponding to the first root node comprises at least one of a communication path between the first root node and a slave node corresponding to the first root node or a first routing metric value; the first root node sends network information of a slave node corresponding to the first root node and/or routing information corresponding to the first root node to the second root node; or the first root node receives network information of a slave node corresponding to the first root node; the first root node updates the routing information corresponding to the first root node according to the received network information of the slave node corresponding to the first root node; the first root node receives a request message of the second root node for acquiring the network information; and the first root node sends network information of a slave node corresponding to the first root node and/or routing information corresponding to the first root node to the second root node.

24. The apparatus according to any of claims 17-23, wherein the apparatus further comprises a traffic module configured to: the first root node sends a first service message, where the first service message includes a first destination node identifier and a next-level node identifier, where the first destination node is a first slave node corresponding to the first root node, the first slave node is any one of slave nodes corresponding to the first root node, the first next-level node is any one of a slave node corresponding to the second root node, or a second slave node corresponding to the first root node, and the second slave node is any one of the slave nodes corresponding to the first root node except the first slave node; or the first root node receives a second service packet, where the second service packet includes a second destination node identifier, and the second destination node is a slave node or the second root node corresponding to the second root node.

25. A communication device for a low voltage power line station, the device comprising: a sending module, configured to send, by a first slave node, an access network request packet to a first root node, where the access network request packet includes identity information of the first slave node; the network access module is used for the first slave node to receive an access network success message sent by the first root node, wherein the access network success message is a message indicating that the first slave node successfully accesses the low-voltage distribution room where the first root node is located; wherein the first slave node includes a slave node corresponding to the first root node and a slave node corresponding to the second root node.

26. The apparatus of claim 25, further comprising a reporting module, configured to, if the first slave node is a slave node corresponding to the first root node, send, by the first slave node, network information of the first slave node to the first root node, where the network information of the first slave node includes: at least one of offline information of the first slave node or online information of the first slave node.

27. The apparatus according to claim 25 or 26, wherein the apparatus further comprises a service module, configured to send a first service packet from the first slave node, where the first service packet includes a first destination node identifier and a next node identifier; when the first slave node is a slave node corresponding to the first root node, the first destination node is the first root node, and the first lower-level node is a slave node corresponding to the first root node or a slave node corresponding to the second root node; or, the first slave node receives a second service packet, where the second service packet includes a second destination node identifier; and if the first slave node is a slave node corresponding to the first root node, the second destination node is the second root node or a slave node corresponding to the second root node.

28. A communication device for a low-voltage power line station, comprising:

a processor and a transmission interface; the processor receives or sends data through the transmission interface;

the processor is configured to implement the method of any of claims 1-12 or the method of any of claims 13-16 when executing instructions stored in the memory.

29. A computer readable storage medium having computer program instructions stored thereon, the computer program instructions when executed by a computer or processor implementing the method of any of claims 1-12 or the method of any of claims 13-16.

30. A computer program product comprising instructions which, when run on a computer or processor, cause the computer or processor to perform the method of any of claims 1-12 or the method of any of claims 13-16.

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