技术领域technical field
本申请涉及无线通信领域，尤其涉及一种无线自组网方法及系统。The present application relates to the field of wireless communication, and in particular, to a wireless ad hoc network method and system.
背景技术Background technique
目前在无线通信领域，通常由无线路由器对站设备(STA)提供网络服务。但STA距离无线路由器越远，无线网络信号越差，且当有墙壁等阻挡物时，信号强度会急剧衰减。故在多层建筑内部或宽广区域内部，通常需要布置中心路由器及多个无线路由器来放大信号，但组网上繁琐，操作不便。Currently, in the field of wireless communication, network services are usually provided by wireless routers to station equipment (STA). However, the farther the STA is from the wireless router, the worse the wireless network signal, and when there are obstacles such as walls, the signal strength will be sharply attenuated. Therefore, in a multi-storey building or a wide area, a central router and multiple wireless routers are usually arranged to amplify the signal, but the networking is cumbersome and the operation is inconvenient.
发明内容SUMMARY OF THE INVENTION
有鉴于此，本申请提供一种无线自组网方法及系统，以解决在多层建筑内部或宽广区域内部，需要布置中心路由器及多个无线路由器来放大信号的组网繁琐，操作不便的问题。In view of this, the present application provides a wireless ad hoc network method and system to solve the problems of cumbersome networking and inconvenient operation that need to arrange a central router and a plurality of wireless routers to amplify signals in a multi-story building or a wide area. .
根据本发明实施例的第一方面，提供一种无线自组网方法，该方法包括：According to a first aspect of the embodiments of the present invention, a wireless ad hoc network method is provided, the method comprising:
站设备广播私有链路认证请求，在预设时间内接收到接入设备的认证响应时，接入所述接入设备提供的无线网络；所述接入设备根据接收到的所述私有链路认证请求，判断所述站设备与自身是否属于相同厂商，若属于相同厂商，则向所述站设备发送认证响应；The station device broadcasts a private link authentication request, and when receiving an authentication response from the access device within a preset time, it accesses the wireless network provided by the access device; the access device accesses the private link according to the received Authentication request, judge whether the station equipment and itself belong to the same manufacturer, if they belong to the same manufacturer, send an authentication response to the station equipment;
站设备在预设时间内未接收到接入设备的认证响应时，发送通用探测请求，查询网络中的无线路由器，并在查询到无线路由器时接入该无线路由器提供的无线网络。When the station device does not receive the authentication response from the access device within the preset time, it sends a general detection request, queries the wireless router in the network, and accesses the wireless network provided by the wireless router when the wireless router is queried.
根据本发明实施例的第二方面，提供一种无线自组网系统，该系统包括：站设备、接入设备和无线路由器；According to a second aspect of the embodiments of the present invention, a wireless ad hoc network system is provided, and the system includes: a station device, an access device, and a wireless router;
所述站设备，用于广播私有链路认证请求，在预设时间内接收到接入设备的认证响应时，接入所述接入设备提供的无线网络；The station device is configured to broadcast a private link authentication request, and when receiving an authentication response from the access device within a preset time, access the wireless network provided by the access device;
所述接入设备，用于根据接收到的所述私有链路认证请求，判断所述站设备与自身是否属于相同厂商，若属于相同厂商，则向所述站设备发送认证响应；The access device is configured to determine whether the station device and itself belong to the same manufacturer according to the received private link authentication request, and if they belong to the same manufacturer, send an authentication response to the station device;
所述站设备，还用于在预设时间内未接收到接入设备的认证响应时，发送通用探测请求，查询网络中的无线路由器，并在查询到无线路由器时接入该无线路由器提供的无线网络；The station device is further configured to send a general detection request when the authentication response from the access device is not received within a preset time, query the wireless router in the network, and access the wireless router provided by the wireless router when the wireless router is queried. wireless network;
所述无线路由器，用于向所述站设备提供无线网络服务。The wireless router is used for providing wireless network services to the station equipment.
应用本发明公开的技术方案，通过将站设备集成无线保真WIreless-Fidelity(WI-FI)芯片，当站设备接入到无线网络后，开启接入模式以作为接入设备向外提供无线服务，自行组建无线WI-FI网络，无需用户布置多个无线路由器来放大信号，组网简单，操作方便；同时限定接入设备只能向相同厂商的站设备提供无线服务，保证了自组网的网络安全性；站设备在接入网络后，还会周期性动态更新接入的网络，使自身的网络状态最佳。By applying the technical solution disclosed in the present invention, by integrating the station equipment with a wireless fidelity WIreless-Fidelity (WI-FI) chip, when the station equipment is connected to a wireless network, the access mode is turned on to serve as an access equipment to provide wireless services to the outside world. , build a wireless WI-FI network by yourself, without the need for users to arrange multiple wireless routers to amplify the signal, the networking is simple, and the operation is convenient; at the same time, the access equipment can only provide wireless services to the station equipment of the same manufacturer, ensuring the self-organized network. Network security: After the station equipment is connected to the network, it will periodically update the connected network dynamically to make its own network state the best.
附图说明Description of drawings
图1是本申请一示例性实施例示出的一种无线自组网方法的流程示意图；FIG. 1 is a schematic flowchart of a wireless ad hoc network method according to an exemplary embodiment of the present application;
图2是本申请一示例性实施例示出的一种无线自组网系统的架构示意图。FIG. 2 is a schematic structural diagram of a wireless ad hoc network system according to an exemplary embodiment of the present application.
具体实施方式Detailed ways
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.
在本申请使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请。在本申请和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
应当理解，尽管在本申请可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本申请范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information without departing from the scope of the present application. Depending on the context, the word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determining."
本发明提供的一种无线自组网系统，包括站设备(STA)、接入设备(AP)、无线路由器。其中站设备可以是集成WI-FI芯片的设备，比如网络摄像机IPC、无线开关等智能家居，本发明不对站设备的具体形态进行限制。站设备接入网络后，开启接入模式(AP模式)作为网络中的接入设备，对外提供无线服务。本实例中，为便于说明，将接入网络后开启AP模式的站设备称为接入设备，将提供无线服务的无线路由器仍然称为无线路由器。A wireless ad hoc network system provided by the present invention includes a station device (STA), an access device (AP), and a wireless router. The station equipment may be a device integrating a WI-FI chip, such as a network camera IPC, a wireless switch and other smart homes, and the present invention does not limit the specific form of the station equipment. After the station device is connected to the network, it turns on the access mode (AP mode) as an access device in the network to provide wireless services to the outside world. In this example, for the convenience of description, the station device that enables the AP mode after accessing the network is referred to as an access device, and the wireless router that provides wireless services is still referred to as a wireless router.
请参见图1，图1为本发明实施例提供的一种无线自组网方法的流程示意图，如图1所示，该无线自组网方法包括：Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a wireless ad hoc networking method according to an embodiment of the present invention. As shown in FIG. 1, the wireless ad hoc networking method includes:
步骤S101、站设备广播私有链路认证请求，在预设时间内接收到接入设备的认证响应时，接入所述接入设备提供的无线网络；所述接入设备根据接收到的所述私有链路认证请求，判断所述站设备与自身是否属于相同厂商，若属于相同厂商，则向所述站设备发送认证响应。Step S101: The station device broadcasts a private link authentication request, and when receiving an authentication response from the access device within a preset time, it accesses the wireless network provided by the access device; the access device accesses the wireless network provided by the access device according to the received The private link authentication request determines whether the station equipment and itself belong to the same manufacturer, and if they belong to the same manufacturer, an authentication response is sent to the station equipment.
站设备上电后，向外广播私有链路认证请求，该私有链路认证请求携带站设备的厂商信息，并在预设时间(比如1秒、2秒)内等待接入设备的回应。接入设备在接收到站设备发送的私有链路认证请求后，分析该私有链路认证请求中的厂商信息，判断站设备与自身是否属于相同厂商，若属于相同厂商，则向该站设备发送认证响应；若不属于相同厂商，则丢弃该请求报文不作回应。本实施限定接入设备只能向相同厂商的站设备提供无线服务，保证了自组网的网络安全性。站设备在预设时间内接收到接入设备的认证响应时，接入该接入设备提供的无线网络。其中，预设时间可以根据实际场景设置，本发明不限制预设时间的具体值。After the station device is powered on, it broadcasts a private link authentication request. The private link authentication request carries the manufacturer information of the station device, and waits for a response from the access device within a preset time (eg, 1 second, 2 seconds). After receiving the private link authentication request sent by the station device, the access device analyzes the manufacturer information in the private link authentication request to determine whether the station device and itself belong to the same manufacturer, and if they belong to the same manufacturer, send a message to the station device Authentication response; if it does not belong to the same manufacturer, the request message will be discarded and no response will be made. In this implementation, the access device can only provide wireless services to station devices of the same manufacturer, which ensures the network security of the ad hoc network. When receiving the authentication response from the access device within the preset time, the station device accesses the wireless network provided by the access device. The preset time can be set according to the actual scene, and the present invention does not limit the specific value of the preset time.
优选地，接入设备判断该站设备与自身属于相同厂商时，先向所述站设备获取站设备的带宽需求，当所述站设备的带宽需求小于所述接入设备的剩余可提供带宽时，再向所述站设备发送认证响应。Preferably, when the access device determines that the station device belongs to the same manufacturer as itself, it first obtains the bandwidth requirement of the station device from the station device, and when the bandwidth requirement of the station device is less than the remaining available bandwidth of the access device , and then send an authentication response to the station device.
接入设备获取站设备的带宽需求，并比较站设备的带宽需求与自身剩余可提供带宽，当站设备的带宽需求小于自身剩余可提供带宽时，认为自身可以向该站设备提供网络服务，故向该站设备发送认证响应，允许该站设备接入自身提供的无线网络；当站设备的带宽需求大于自身剩余可提供带宽时，认为自身不可以向该站设备提供网络服务，否则可能会超负载影响整个网络质量，引起网络拥塞，故不向该站设备发送认证响应。还可以根据实际场景决定当站设备的带宽需求等于自身剩余可提供带宽时，是否向该站设备提供网络服务。接入设备根据站设备的带宽需求与自身剩余可提供带宽来决定是否向该站设备提供网络服务，来保证网络不超负载运行，保证了网络质量。The access device obtains the bandwidth requirements of the station equipment, and compares the bandwidth requirements of the station equipment with the remaining available bandwidth. When the bandwidth requirements of the station equipment are less than the remaining available bandwidth of the station equipment, it is considered that it can provide network services to the station equipment. Therefore, Send an authentication response to the station equipment to allow the station equipment to access the wireless network provided by itself; when the bandwidth demand of the station equipment is greater than its remaining available bandwidth, it is considered that it cannot provide network services to the station equipment, otherwise it may exceed the bandwidth requirement. The load affects the quality of the entire network and causes network congestion, so no authentication response is sent to the station device. It is also possible to decide whether to provide network services to the station device when the bandwidth demand of the station device is equal to the remaining available bandwidth of the station device according to the actual scenario. The access equipment decides whether to provide network services to the station equipment according to the bandwidth requirements of the station equipment and the remaining available bandwidth, so as to ensure that the network is not overloaded and the network quality is guaranteed.
优选地，站设备在预设时间内接收到接入设备的认证响应时，向该接入设备发送接入请求，并接收该接入设备发送的接入响应，该接入响应包括服务集标识SSID、密码和网络强度。Preferably, when receiving an authentication response from an access device within a preset time, the station device sends an access request to the access device, and receives an access response sent by the access device, where the access response includes a service set identifier SSID, password and network strength.
站设备在预设时间内接收到接入设备的认证响应时，还需向该接入设备发送接入请求，以获取接入设备的SSID、密码和网络强度。站设备在接收到接入响应时，根据接入设备的SSID、密码来接入该接入设备提供的无线网络。When the station device receives the authentication response from the access device within the preset time, it also needs to send an access request to the access device to obtain the SSID, password and network strength of the access device. When receiving the access response, the station device accesses the wireless network provided by the access device according to the SSID and password of the access device.
优选地，当存在多个接入设备向该站设备发送接入响应时，站设备比较各接入设备的网络强度，并选择接入到网络强度最强的接入设备提供的无线网络。Preferably, when there are multiple access devices sending access responses to the station device, the station device compares the network strengths of the access devices, and selects to access the wireless network provided by the access device with the strongest network strength.
由于站设备是广播私有链路认证请求，当网络中存在多个接入设备时，站设备可能会收到多个接入设备发送的认证响应，从而站设备会向各发送认证响应的接入设备发送接入请求，故站设备可能会收到多个接入设备向其发送的接入响应。当站设备收到多个接入设备向其发送的接入响应时，先比较各接入设备的网络强度，从中选择网络强度最强的接入设备，并接入该网络强度最强的接入设备提供的无线网络。Since the station device broadcasts the private link authentication request, when there are multiple access devices in the network, the station device may receive authentication responses sent by multiple access devices, so the station device will send an authentication response to each access device. The device sends an access request, so the station device may receive access responses sent to it by multiple access devices. When the station device receives the access responses sent by multiple access devices, it first compares the network strength of each access device, selects the access device with the strongest network strength, and accesses the access device with the strongest network strength. into the wireless network provided by the device.
步骤S102、站设备在预设时间内未接收到接入设备的认证响应时，发送通用探测请求，查询网络中的无线路由器，并在查询到无线路由器时接入该无线路由器提供的无线网络。Step S102: When the station device does not receive an authentication response from the access device within a preset time, it sends a general probe request, queries the wireless router in the network, and accesses the wireless network provided by the wireless router when the wireless router is queried.
当该站设备作为第一个站设备请求接入网络(即还未有站设备接入网络后开启AP模式作为接入设备向外提供无线服务)或接入设备故障或由于距离接入设备较远等等因素，该站设备在预设时间内没有接收到接入设备的认证响应。站设备发送通用探测请求(比如Probe Request)，查询周围其他可用的无线网络(无线路由器或其他无线通讯设备)，并在查询到无线路由器或其他无线通讯设备时，接入无线路由器其他无线通讯设备所提供的无线网络。When the station device as the first station device requests to access the network (that is, the AP mode is turned on as the access device to provide wireless services after no station device has accessed the network), or the access device fails or the distance to the access device is relatively long. Due to factors such as distance, the station device does not receive an authentication response from the access device within a preset time. The station device sends a general probe request (such as Probe Request), inquires about other available wireless networks (wireless routers or other wireless communication devices) around it, and when the wireless router or other wireless communication devices is inquired, it connects to the wireless router and other wireless communication devices. provided wireless network.
步骤S103、站设备在接入接入设备或无线路由器提供的无线网络后，开启接入模式以作为接入设备，周期广播接入信息，所述接入信息包括服务集标识SSID和网络强度。Step S103: After accessing the wireless network provided by the access device or the wireless router, the station device turns on the access mode as the access device, and periodically broadcasts access information, where the access information includes the service set identifier SSID and network strength.
站设备连接网络后，开启AP模式，成为接入设备对外提供网络服务，周期(比如5秒、10秒)广播接入信息，告知自身SSID和当前网络强度。其中，接入设备向外广播接入信息的周期可以根据实际场景设置，本发明不限制该周期的具体值。After the station device is connected to the network, it turns on the AP mode and becomes an access device to provide network services to the outside world. It broadcasts access information periodically (such as 5 seconds and 10 seconds), and informs its own SSID and current network strength. The period for the access device to broadcast the access information to the outside may be set according to the actual scene, and the present invention does not limit the specific value of the period.
步骤S104、站设备接入无线网络后，按预设周期侦听网络中的各接入设备的网络强度，在比较各接入设备的网络强度后，选择接入到网络强度最强的接入设备提供的无线网络。Step S104: After the station device is connected to the wireless network, it monitors the network strength of each access device in the network according to a preset period, and after comparing the network strength of each access device, selects the access with the strongest network strength. The wireless network provided by the device.
站设备接入无线网络后，按预设周期(比如10分钟、30分钟)侦听网络中的各接入设备的网络强度，并比较各接入设备的网络强度，选择网络强度最强的接入设备。为便于说明，本实施例将选择的网络强度最强的接入设备称为第二接入设备，将站设备当前所接入网络的网络提供者(接入设备或无线路由器)称为第一接入设备。当第二接入设备与第一接入设备不是同一个设备时，需要切换网络，即向第二接入设备单播私有链路认证请求，并在获取到第二接入设备的SSID和密码信息时，断开与第一接入设备的网络连接，切换接入到第二接入设备所提供的无线网络中，并在网络连接成功后，按预设周期侦听网络中的各接入设备的网络强度；当第二接入设备与第一接入设备是同一个设备时，不需要切换网络，继续按预设周期侦听网络中的各接入设备的网络强度。After the station device is connected to the wireless network, it listens to the network strength of each access device in the network at a preset period (such as 10 minutes, 30 minutes), compares the network strength of each access device, and selects the connection with the strongest network strength. into the device. For the convenience of description, in this embodiment, the selected access device with the strongest network strength is referred to as the second access device, and the network provider (access device or wireless router) of the network currently accessed by the station device is referred to as the first access device. Access the device. When the second access device and the first access device are not the same device, the network needs to be switched, that is, the private link authentication request is unicast to the second access device, and the SSID and password of the second access device are obtained after the second access device is obtained. information, disconnect the network connection with the first access device, switch to access the wireless network provided by the second access device, and after the network connection is successful, monitor each access in the network according to a preset period The network strength of the device; when the second access device and the first access device are the same device, there is no need to switch networks, and continue to monitor the network strength of each access device in the network at a preset period.
应用本发明公开的技术方案，通过将站设备集成WI-FI芯片，当站设备接入到无线网络后，开启接入模式以作为接入设备向外提供无线服务，自行组建无线WI-FI网络，无需用户布置多个无线路由器来放大信号，组网简单，操作方便；同时限定接入设备只能向相同厂商的站设备提供无线服务，保证了自组网的网络安全性；站设备在接入网络后，还会周期性动态更新接入的网络，使自身的网络状态最佳。By applying the technical solution disclosed in the present invention, by integrating the station equipment with a WI-FI chip, when the station equipment is connected to a wireless network, the access mode is turned on to serve as an access equipment to provide wireless services to the outside, and a wireless WI-FI network can be established by itself. , there is no need for the user to arrange multiple wireless routers to amplify the signal, the networking is simple, and the operation is convenient; at the same time, the access equipment can only provide wireless services to the station equipment of the same manufacturer, which ensures the network security of the ad hoc network; After entering the network, it will also dynamically update the connected network periodically to make its own network state the best.
为了使本领域技术人员更好地理解本发明实施例提供的技术方案，下面结合具体应用场景对本发明实施例提供的技术方案进行描述。In order for those skilled in the art to better understand the technical solutions provided by the embodiments of the present invention, the technical solutions provided by the embodiments of the present invention are described below with reference to specific application scenarios.
本发明实施例提供的一种应用场景可以包括一个无线路由器和若干个IPC。其中各IPC均集成WI-FI芯片，IPC在接入网络前被称为站设备，当IPC接入网络后，开启接入模式(AP模式)作为网络中的接入设备，可以向其他IPC提供无线服务。为便于说明，本实施例将第一个请求接入网络的IPC称为IPC1，将第二个请求接入网络的IPC称为IPC2，以此类推。基于该应用场景，本发明实施例提供的无线自组网方法流程实现如下：An application scenario provided by the embodiment of the present invention may include a wireless router and several IPCs. Each IPC integrates a WI-FI chip. The IPC is called a station device before it is connected to the network. After the IPC is connected to the network, the access mode (AP mode) is turned on as an access device in the network, which can provide other IPCs with Wireless service. For convenience of description, in this embodiment, the first IPC requesting to access the network is called IPC1, the second IPC requesting to access the network is called IPC2, and so on. Based on this application scenario, the process of the wireless ad hoc network method provided by the embodiment of the present invention is implemented as follows:
1、IPC1上电后，作为STA广播私有链路认证请求，并在预设时间内等待接入设备发送的认证响应。1. After the IPC1 is powered on, it broadcasts a private link authentication request as a STA, and waits for an authentication response sent by the access device within a preset time.
站设备可以依次在每个信道上发出私有链路认证请求，并在预设时间内等待认证响应。The station device can send a private link authentication request on each channel in turn, and wait for an authentication response within a preset time.
本实施例中，私有链路认证请求可以根据802.11定义的数据帧格式来定义，其中以MAC头开始部分帧控制Frame control字段中的位类型Type与子类型Subtype来指定帧类型。其中Type定义厂商类型，假设为N；Subtype定义私有链路认证请求类型，假设为A。即Type和Subtype共同确定帧类型。In this embodiment, the private link authentication request may be defined according to the data frame format defined by 802.11, wherein the frame type is specified by the bit type Type and subtype Subtype in the frame control field of the MAC header. Among them, Type defines the manufacturer type, assuming N; Subtype defines the private link authentication request type, assuming A. That is, Type and Subtype jointly determine the frame type.
2、IPC1在预设时间内未接收到接入设备的认证响应，发送通用探测请求，查询网络中的无线路由器，并在查询到无线路由器时接入该无线路由器提供的无线网络。2. The IPC1 does not receive an authentication response from the access device within the preset time, sends a general probe request, queries the wireless router in the network, and accesses the wireless network provided by the wireless router when the wireless router is queried.
由于IPC1是第一个请求接入网络的IPC，故IPC1周围无其他可提供无线服务的IPC。故IPC1在预设时间内未接收到接入设备的认证响应时，发送通用探测请求(ProbeRequest)，查询周围其他可用的无线网络。IPC1在查询到无线路由器时接入该无线路由器提供的无线网络。Since IPC1 is the first IPC to request access to the network, there are no other IPCs around IPC1 that can provide wireless services. Therefore, when the IPC1 does not receive an authentication response from the access device within the preset time, it sends a general probe request (ProbeRequest) to query other available wireless networks around. When the IPC1 finds the wireless router, it accesses the wireless network provided by the wireless router.
3、IPC1在接入无线网络后，开启AP模式以作为接入设备，周期广播接入信息(比如：定时向外发送私有广播Beacon帧)，告知自身SSID和当前网络强度。3. After the IPC1 accesses the wireless network, it turns on the AP mode as an access device, periodically broadcasts access information (for example: regularly sends out private broadcast Beacon frames), and informs its own SSID and current network strength.
本实施例中，私有广播Beacon帧可以根据802.11定义的数据帧格式来定义，其中以MAC头开始部分帧控制Frame control字段中的位类型Type与子类型Subtype来指定帧类型，并在MAC头Frame Body部分携带SSID和网络强度。其中Type定义厂商类型，假设为N；Subtype定义私有广播Beacon帧类型，假设为B。即Type和Subtype共同确定帧类型。In this embodiment, the private broadcast Beacon frame can be defined according to the data frame format defined by 802.11, wherein the frame type is specified by the bit type Type and subtype Subtype in the frame control field of the MAC header, and the frame type is specified in the MAC header Frame control field. The Body part carries the SSID and network strength. Type defines the manufacturer type, assuming N; Subtype defines the private broadcast Beacon frame type, assuming B. That is, Type and Subtype jointly determine the frame type.
4、IPC2上电后，作为STA广播私有链路认证请求，并在预设时间内等待接入设备发送的认证响应。4. After the IPC2 is powered on, it broadcasts a private link authentication request as a STA, and waits for an authentication response sent by the access device within a preset time.
5、IPC1接收IPC2发送的私有链路认证请求，并判断IPC2与自身是否属于相同厂商，若属于相同厂商，则向IPC2获取其带宽需求。5. IPC1 receives the private link authentication request sent by IPC2, and determines whether IPC2 and itself belong to the same manufacturer, and if they belong to the same manufacturer, obtain their bandwidth requirements from IPC2.
由于IPC1已作为接入设备向外提供无线服务。当IPC1接收到IPC2发送的私有链路认证请求时，IPC1分析该私有链路认证请求，获知IPC2的厂商为N，与自身所属厂商相同，则向IPC2获取其带宽需求。Because IPC1 has provided wireless services as an access device. When IPC1 receives the private link authentication request sent by IPC2, IPC1 analyzes the private link authentication request and learns that the manufacturer of IPC2 is N, which is the same as its own manufacturer, and then obtains its bandwidth requirements from IPC2.
本实施例中，IPC1向IPC2获取其带宽需求，可以在回复该私有链路认证请求的同时携带请求信息，也可以单独发送带宽请求帧来获取IPC2的带宽需求。IPC2的带宽需求，可以是IPC2当前需要传输的视频流码率值，比如IPC2的视频流码率值为每秒8M比特，则IPC2的带宽需求为8M。In this embodiment, IPC1 obtains its bandwidth requirement from IPC2, and may carry the request information while replying to the private link authentication request, or may separately send a bandwidth request frame to obtain the bandwidth requirement of IPC2. The bandwidth requirement of IPC2 can be the video stream bit rate value that IPC2 currently needs to transmit. For example, if the video stream bit rate value of IPC2 is 8M bits per second, the bandwidth requirement of IPC2 is 8M.
带宽请求帧可以根据802.11定义的数据帧格式来定义，其中以MAC头开始部分帧控制Frame control字段中的位类型Type与子类型Subtype来指定帧类型，并在MAC头FrameBody部分携带SSID。其中Type定义厂商类型，假设为N；Subtype定义带宽请求帧类型，假设为M1。即Type和Subtype共同确定帧类型。The bandwidth request frame can be defined according to the data frame format defined by 802.11, wherein the frame type is specified by the bit type Type and subtype Subtype in the frame control field of the frame control field of the MAC header, and the SSID is carried in the FrameBody part of the MAC header. Among them, Type defines the manufacturer type, which is assumed to be N; Subtype defines the bandwidth request frame type, which is assumed to be M1. That is, Type and Subtype jointly determine the frame type.
6、IPC2向IPC1回复自身的带宽需求。6. IPC2 replies to IPC1 with its own bandwidth requirements.
带宽请求回复帧可以根据802.11定义的数据帧格式来定义，其中以MAC头开始部分帧控制Frame control字段中的位类型Type与子类型Subtype来指定帧类型，并在MAC头Frame Body部分携带带宽需求值。其中Type定义厂商类型，假设为N；Subtype定义带宽请求回复帧类型，假设为M2。即Type和Subtype共同确定帧类型。The bandwidth request reply frame can be defined according to the data frame format defined by 802.11, in which the frame type is specified by the bit type Type and subtype Subtype in the frame control field of the frame control field of the MAC header, and the bandwidth requirement is carried in the Frame Body part of the MAC header. value. Among them, Type defines the manufacturer type, which is assumed to be N; Subtype defines the frame type of the bandwidth request and reply, which is assumed to be M2. That is, Type and Subtype jointly determine the frame type.
7、IPC1根据IPC2回复的带宽需求值，决定是否向IPC2提供网络服务。7. IPC1 decides whether to provide network services to IPC2 according to the bandwidth demand value returned by IPC2.
假设IPC2的带宽需求为8M，IPC1的剩余可提供带宽为20M，即IPC2的带宽需求小于IPC1的剩余可提供带宽，故可以向IPC2提供网络服务，IPC1向IPC2发送私有链路认证请求的认证响应。Assuming that the bandwidth requirement of IPC2 is 8M, and the remaining available bandwidth of IPC1 is 20M, that is, the bandwidth requirement of IPC2 is less than the remaining available bandwidth of IPC1, so it can provide network services to IPC2, and IPC1 sends the authentication response of the private link authentication request to IPC2 .
8、IPC2在预设时间内接收到IPC1发送的认证响应，向IPC1发送接入请求，请求IPC1的SSID、密码和网络强度。8. The IPC2 receives the authentication response sent by the IPC1 within the preset time, and sends an access request to the IPC1 to request the SSID, password and network strength of the IPC1.
本实施例中，接入请求可以根据802.11定义的数据帧格式来定义，其中以MAC头开始部分帧控制Frame control字段中的位类型Type与子类型Subtype来指定帧类型。其中Type定义厂商类型，假设为N；Subtype定义接入请求类型，假设为C。即Type和Subtype共同确定帧类型。In this embodiment, the access request can be defined according to the data frame format defined by 802.11, wherein the frame type is specified by the bit type Type and subtype Subtype in the frame control field of the MAC header. Among them, Type defines the manufacturer type, assuming N; Subtype defines the access request type, assuming C. That is, Type and Subtype jointly determine the frame type.
9、IPC1在接收到IPC2发送的接入请求后，回复自身的SSID、密码和当前的网络强度。9. After receiving the access request sent by IPC2, IPC1 replies with its own SSID, password and current network strength.
本实施例中，接入响应可以根据802.11定义的数据帧格式来定义，其中以MAC头开始部分帧控制Frame control字段中的位类型Type与子类型Subtype来指定帧类型，并在MAC头Frame Body部分携带SSID、密码和网络强度。其中Type定义厂商类型，假设为N；Subtype定义私有广播Beacon帧类型，假设为D。即Type和Subtype共同确定帧类型。In this embodiment, the access response can be defined according to the data frame format defined by 802.11, wherein the frame type is specified by the bit type Type and subtype Subtype in the frame control field of the MAC header, and the frame type is specified in the MAC header Frame Body Parts carry SSID, password and network strength. Among them, Type defines the manufacturer type, which is assumed to be N; Subtype defines the private broadcast Beacon frame type, which is assumed to be D. That is, Type and Subtype jointly determine the frame type.
10、IPC2根据获得的IPC1的SSID、密码和网络强度，接入IPC1提供的无线网络。10. The IPC2 accesses the wireless network provided by the IPC1 according to the obtained SSID, password and network strength of the IPC1.
由于当前只有单个IPC提供的无线网络，IPC2在无其他选择的情况下，与IPC1提供的AP1进行关联和接入认证，IPC1作为无线路由器的中继AP向IPC2提供网络服务。Since there is currently only a wireless network provided by a single IPC, IPC2 associates and authenticates with AP1 provided by IPC1 when there is no other choice, and IPC1 acts as a relay AP of a wireless router to provide network services to IPC2.
11、IPC2在接入无线网络后，开启AP模式以作为接入设备，周期广播接入信息(比如：定时向外发送私有广播Beacon帧)，告知自身SSID和当前网络强度。11. After the IPC2 accesses the wireless network, it turns on the AP mode as an access device, periodically broadcasts access information (for example, regularly sends out private broadcast Beacon frames), and informs its own SSID and current network strength.
12、IPC3上电后，作为STA广播私有链路认证请求，并在预设时间内等待接入设备发送的认证响应。12. After the IPC3 is powered on, it broadcasts a private link authentication request as a STA, and waits for an authentication response sent by the access device within a preset time.
13、IPC1和/或IPC2接收到IPC3发送的私有链路认证请求，并向IPC3作出回应。13. IPC1 and/or IPC2 receive the private link authentication request sent by IPC3, and respond to IPC3.
由于IPC1和IPC2已作为接入设备向外提供无线服务。假设IPC1和IPC2均接收到IPC3发送的私有链路认证请求，分析该私有链路认证请求后获知IPC3的厂商为N，与自身所属厂商相同，则向IPC3获取其带宽需求。假设IPC3的带宽需求均小于IPC1或IPC2的剩余可提供带宽，即IPC1和IPC2均允许IPC3接入其提供的无线网络。Because IPC1 and IPC2 have provided wireless services as access devices. Assuming that both IPC1 and IPC2 receive the private link authentication request sent by IPC3, after analyzing the private link authentication request, they know that the manufacturer of IPC3 is N, which is the same as the manufacturer to which they belong, and then obtain their bandwidth requirements from IPC3. It is assumed that the bandwidth requirement of IPC3 is smaller than the remaining available bandwidth of IPC1 or IPC2, that is, both IPC1 and IPC2 allow IPC3 to access the wireless network provided by it.
14、IPC3比较IPC1和IPC2的网络强度，并选择接入到网络强度最强的接入设备提供的无线网络。14. IPC3 compares the network strengths of IPC1 and IPC2, and chooses to access the wireless network provided by the access device with the strongest network strength.
由于存在多个接入设备向IPC3发送接入响应，IPC3需要比较各接入设备的网络强度，并选择接入到网络强度最强的接入设备提供的无线网络。本实施例中，假设IPC2的网络强度大于IPC1的网络强度，则IPC3选择接入网络强度最强的IPC2所提供的无线网络，保证自身的网络状态最佳。Since there are multiple access devices sending access responses to IPC3, IPC3 needs to compare the network strength of each access device, and select to access the wireless network provided by the access device with the strongest network strength. In this embodiment, assuming that the network strength of IPC2 is greater than that of IPC1, IPC3 selects the wireless network provided by IPC2 with the strongest network strength to ensure its own network status is optimal.
15、IPC3在接入无线网络后，开启AP模式以作为接入设备，周期广播接入信息(比如：定时向外发送私有广播Beacon帧)，告知自身SSID和当前网络强度。15. After the IPC3 accesses the wireless network, it turns on the AP mode as an access device, periodically broadcasts access information (for example, regularly sends out private broadcast Beacon frames), and informs its own SSID and current network strength.
本实施例，仅以3个IPC接入网络的过程进行说明，但并不限制本方案支持的应用场景及场景规模。In this embodiment, only the process of accessing the network by three IPCs is described, but the application scenarios and scenario scales supported by this solution are not limited.
当IPC接入无线网络后，按预设周期侦听网络中的各接入设备的网络强度，在比较各接入设备的网络强度后，选择接入到网络强度最强的接入设备提供的无线网络。After the IPC is connected to the wireless network, it monitors the network strength of each access device in the network at a preset period, and after comparing the network strength of each access device, selects the one provided by the access device with the strongest network strength. wireless network.
各IPC在接入到无线网络后，均会作为接入设备对外提供无线服务，周期广播自身的SSID和当前网络强度。比如IPC3按预设周期10分钟网络中的各接入设备的网络强度，而IPC1、IPC2广播自身的网络强度的周期为10秒，即IPC3每隔10秒侦听到IPC1和/或IPC2的网络强度，统计10分钟内侦听到的网络强度值，计算IPC1和/或IPC2在10分钟内的网络强度均值，假设IPC1在10分钟内的网络强度均值为100，IPC2在10分钟内的网络强度均值为90，则IPC1在预设周期内的网络强度均值大于IPC2，且IPC3当前接入的无线网络由IPC2提供，故IPC3需要切换接入IPC1提供的无线网络。IPC3向IPC1单播私有链路认证请求，IPC1在接收到该私有链路认证请求时会进行同上文描述的厂商判断、带宽需求请求等处理，本实施在此不再赘述。After each IPC is connected to the wireless network, it will act as an access device to provide wireless services to the outside world, and periodically broadcast its own SSID and current network strength. For example, IPC3 schedules the network strength of each access device in the network at a preset period of 10 minutes, while IPC1 and IPC2 broadcast their own network strength with a period of 10 seconds, that is, IPC3 listens to the network of IPC1 and/or IPC2 every 10 seconds. Intensity, count the network strength values detected within 10 minutes, calculate the average network strength of IPC1 and/or IPC2 within 10 minutes, assuming that the average network strength of IPC1 within 10 minutes is 100, and the network strength of IPC2 within 10 minutes If the mean value is 90, the mean value of the network strength of IPC1 in the preset period is greater than that of IPC2, and the wireless network currently accessed by IPC3 is provided by IPC2, so IPC3 needs to switch to the wireless network provided by IPC1. The IPC3 unicasts the private link authentication request to the IPC1, and when the IPC1 receives the private link authentication request, it will perform the same processing as the manufacturer judgment and bandwidth demand request described above, and this implementation will not be repeated here.
由上述实施例可见，通过将站设备集成WI-FI芯片，当站设备接入到无线网络后，开启接入模式以作为接入设备向外提供无线服务，自行组建无线WI-FI网络，无需用户布置多个无线路由器来放大信号，组网简单，操作方便；同时限定接入设备只能向相同厂商的站设备提供无线服务，保证了自组网的网络安全性；站设备在接入网络后，还会周期性动态更新接入的网络，使自身的网络状态最佳。It can be seen from the above embodiment that by integrating the station equipment with the WI-FI chip, when the station equipment is connected to the wireless network, the access mode is turned on to provide wireless services as the access equipment, and the wireless WI-FI network can be built by itself without the need for The user arranges multiple wireless routers to amplify the signal, the networking is simple, and the operation is convenient; at the same time, the access equipment can only provide wireless services to the station equipment of the same manufacturer, which ensures the network security of the ad hoc network; the station equipment is connected to the network After that, the connected network will be dynamically updated periodically to make its own network state the best.
与前述无线自组网方法的实施例相对应，本申请还提供了无线自组网系统的实施例。Corresponding to the foregoing embodiments of the wireless ad hoc network method, the present application also provides an embodiment of a wireless ad hoc network system.
请参考图2，为本发明实施例提供的一种无线自组网系统的架构示意图。该无线自组网系统包括：站设备、接入设备和无线路由器。Please refer to FIG. 2 , which is a schematic structural diagram of a wireless ad hoc network system according to an embodiment of the present invention. The wireless ad hoc network system includes: station equipment, access equipment and wireless routers.
所述站设备，用于广播私有链路认证请求，在预设时间内接收到接入设备的认证响应时，接入所述接入设备提供的无线网络；The station device is configured to broadcast a private link authentication request, and when receiving an authentication response from the access device within a preset time, access the wireless network provided by the access device;
所述接入设备，用于根据接收到的所述私有链路认证请求，判断所述站设备与自身是否属于相同厂商，若属于相同厂商，则向所述站设备发送认证响应；The access device is configured to determine whether the station device and itself belong to the same manufacturer according to the received private link authentication request, and if they belong to the same manufacturer, send an authentication response to the station device;
所述站设备，还用于在预设时间内未接收到接入设备的认证响应时，发送通用探测请求，查询网络中的无线路由器，并在查询到无线路由器时接入该无线路由器提供的无线网络；The station device is further configured to send a general detection request when the authentication response from the access device is not received within a preset time, query the wireless router in the network, and access the wireless router provided by the wireless router when the wireless router is queried. wireless network;
所述无线路由器，用于向所述站设备提供无线网络服务。The wireless router is used for providing wireless network services to the station equipment.
在可选实施例中，所述接入设备，还用于在判断所述站设备与自身属于相同厂商时，在向所述站设备发送认证响应前，向所述站设备获取站设备的带宽需求，当所述站设备的带宽需求小于所述接入设备的剩余可提供带宽时，向所述站设备发送认证响应。In an optional embodiment, the access device is further configured to obtain the bandwidth of the station device from the station device before sending an authentication response to the station device when judging that the station device and itself belong to the same manufacturer When the bandwidth requirement of the station device is less than the remaining available bandwidth of the access device, an authentication response is sent to the station device.
在可选实施例中，所述站设备，还用于在接入接入设备或无线路由器提供的无线网络后，开启接入模式以作为接入设备，周期广播接入信息，所述接入信息包括服务集标识SSID和网络强度。In an optional embodiment, the station device is further configured to, after accessing the wireless network provided by the access device or the wireless router, turn on the access mode as an access device, and periodically broadcast access information, and the access Information includes service set identification SSID and network strength.
在可选实施例中，所述站设备，还用于在预设时间内接收到接入设备的认证响应时，向所述接入设备发送接入请求，并接收所述接入设备根据所述接入请求发送的接入响应，所述接入响应包括服务集标识SSID、密码和网络强度；In an optional embodiment, the station device is further configured to send an access request to the access device when receiving an authentication response from the access device within a preset time, and receive the access device according to the The access response sent by the access request, the access response includes the service set identifier SSID, password and network strength;
所述站设备，还用于当存在多个接入设备向所述站设备发送接入响应时，比较各接入设备的网络强度，并选择接入到网络强度最强的接入设备提供的无线网络。The station device is further configured to compare the network strength of each access device when there are multiple access devices sending an access response to the station device, and select the access device provided by the access device with the strongest network strength. wireless network.
在可选实施例中，所述站设备，还用于在接入无线网络后，按预设周期侦听网络中的各接入设备的网络强度，在比较各接入设备的网络强度后，选择接入到网络强度最强的接入设备提供的无线网络。In an optional embodiment, the station device is further configured to, after accessing the wireless network, listen to the network strength of each access device in the network according to a preset period, and after comparing the network strength of each access device, Choose to connect to the wireless network provided by the access device with the strongest network strength.
由上述实施例可见，通过将站设备集成WI-FI芯片，当站设备接入到无线网络后，开启接入模式以作为接入设备向外提供无线服务，自行组建无线WI-FI网络，无需用户布置多个无线路由器来放大信号，组网简单，操作方便；同时限定接入设备只能向相同厂商的站设备提供无线服务，保证了自组网的网络安全性；站设备在接入网络后，还会周期性动态更新接入的网络，使自身的网络状态最佳。It can be seen from the above embodiment that by integrating the station equipment with the WI-FI chip, when the station equipment is connected to the wireless network, the access mode is turned on to provide wireless services as the access equipment, and the wireless WI-FI network can be built by itself without the need for The user arranges multiple wireless routers to amplify the signal, the networking is simple, and the operation is convenient; at the same time, the access equipment can only provide wireless services to the station equipment of the same manufacturer, which ensures the network security of the ad hoc network; the station equipment is connected to the network After that, the connected network will be dynamically updated periodically to make its own network state the best.
上述系统中各组成设备的功能和作用的实现过程具体详见上述方法中对应步骤的实现过程，在此不再赘述。For details of the implementation process of the functions and functions of each component device in the above system, please refer to the implementation process of the corresponding steps in the above method, which will not be repeated here.
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本申请方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。As for the apparatus embodiments, since they basically correspond to the method embodiments, reference may be made to the partial descriptions of the method embodiments for related parts. The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the present application. Those of ordinary skill in the art can understand and implement it without creative effort.
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请保护的范围之内。The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the present application. within the scope of protection.
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| CN201610339307.3ACN106060816B (en) | 2016-05-20 | 2016-05-20 | A wireless ad hoc network method and system |
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| CN201610339307.3ACN106060816B (en) | 2016-05-20 | 2016-05-20 | A wireless ad hoc network method and system |
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| CN201610339307.3AActiveCN106060816B (en) | 2016-05-20 | 2016-05-20 | A wireless ad hoc network method and system |
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