技术领域technical field
本发明涉及充电桩领域，更具体的说，尤其涉及一种基于LoRa通信的具有电量控制功能的充电桩系统。The present invention relates to the field of charging piles, and more specifically, to a charging pile system based on LoRa communication with power control function.
背景技术Background technique
部分小区采用固定停车位的方式，车子只能够停在指定的停车位上，且一个停车位只能停一辆车，以防止一张卡被多次刷卡停入多辆车的情况，而且对于电动车的停车位，很难合理的收取停车费，有些人停车不需要充电，有些人停车经常充电，若按照只收车位的方式对不需要充电的人来说费用收的不合理。Some communities adopt the method of fixed parking spaces. Cars can only park in designated parking spaces, and only one car can be parked in one parking space, so as to prevent one card from being swiped multiple times to park multiple cars. It is difficult to charge reasonable parking fees for the parking spaces of electric vehicles. Some people do not need to charge for parking, and some people often charge for parking.
现在市场上很多公司的充电桩，采用5-10个充电桩共用一个GPRS模块，用一个GPRS模块来将它管辖的5-10个充电桩与后台云服务器实现通讯。若一个地下车库要安装200台充电桩，那么就需要20-40个GPRS模块，这必然会增加硬件成本，同时GPRS模块通讯每月要交服务费用，从长远来看这也是一比不容忽视的费用。At present, the charging piles of many companies in the market use 5-10 charging piles to share a GPRS module, and use a GPRS module to communicate between the 5-10 charging piles under its jurisdiction and the background cloud server. If an underground garage needs to install 200 charging piles, then 20-40 GPRS modules are needed, which will inevitably increase the hardware cost. At the same time, the GPRS module communication needs to pay a service fee every month. In the long run, this ratio cannot be ignored. cost.
充电桩用于为电动自行车充电，极大地便利了电动自行车的使用。通常，为便于管理，充电站内的多个充电桩需要与后台控制系统进行通信，充电桩可将历史充电车辆、充电时间等信息通过GPRS传输至后台控制系统，便于后台控制系统对充电桩的统一管理和监测。Charging piles are used to charge electric bicycles, which greatly facilitates the use of electric bicycles. Usually, in order to facilitate management, multiple charging piles in the charging station need to communicate with the background control system. The charging piles can transmit historical charging vehicles, charging time and other information to the background control system through GPRS, which is convenient for the background control system to unify the charging piles. management and monitoring.
目前电动自行车充电桩主要是联网充电桩与离散充电桩两种，尤其是离散充电桩，地理布局分散，数量众多现有的许多充电桩并没有通信功能，无法实时监控设备状态，属于“呆”桩，联网充电桩则采用独立GPRS或独立以太网的通信方式，不仅成本比较高，而且维护量大。采用独立GPRS通信方式会存在以下问题：地下停车库信号差导致信息延时会造成客户使用体验较差，GPRS通信产生流量费用会增加设备后期的维护费用。采用独立以太网通信方式同样会出现一些问题，比如，每一个充电桩都要有以太网网口，每台充电桩需要通过网线和路由器或者交换机连接这样就无形中增加了布线的复杂度以及布线成本，比如，路由器或者交换机上网的问题成为了一个新的问题，这就可能每个充电桩服务的校区需要办理独立的上网账号为充电桩提供流量。At present, there are mainly two types of charging piles for electric bicycles: networked charging piles and discrete charging piles. In particular, discrete charging piles have a scattered geographical layout and a large number. Many existing charging piles do not have communication functions and cannot monitor the status of equipment in real time. The networked charging pile adopts independent GPRS or independent Ethernet communication mode, which is not only costly, but also requires a lot of maintenance. The use of independent GPRS communication will have the following problems: the signal delay of the underground parking garage will lead to poor user experience, and the traffic fee generated by GPRS communication will increase the maintenance cost of the equipment in the later stage. There will also be some problems when using an independent Ethernet communication method. For example, each charging pile must have an Ethernet network port, and each charging pile needs to be connected to a router or switch through a network cable, which will virtually increase the complexity of wiring and wiring. Cost, for example, the problem of routers or switches to access the Internet has become a new problem, which means that each campus served by the charging pile needs to apply for an independent Internet account to provide traffic for the charging pile.
而LoRa作为一种无线技术，基于Sub-GHz的频段使其更易以较低功耗远距离通信，。通信频率为433Mhz，灵敏度达到-142dbm，LoRa的抗干扰能力极强，loRa调制解调器经配置后，可划分的范围为64-4096码片/比特，最高可使用4096码片/比特中的最高扩频因子(12)，同时LoRa的有极强的抗干扰能力，在地下停车库依旧能够完成通信任务。LoRa的通信距离在郊区可达十几公里，在建筑物复杂的城区可达几公里。现在尚无将LORA应用到电动自行车充电桩的先例。As a wireless technology, LoRa is based on the Sub-GHz frequency band, making it easier to communicate over long distances with lower power consumption. The communication frequency is 433Mhz, the sensitivity reaches -142dbm, and the anti-interference ability of LoRa is extremely strong. After the loRa modem is configured, the range that can be divided is 64-4096 chips/bit, and the highest spread spectrum in 4096 chips/bit can be used at most factor (12), and LoRa has a strong anti-interference ability, and it can still complete the communication task in the underground parking garage. The communication distance of LoRa can reach more than ten kilometers in the suburbs, and several kilometers in urban areas with complex buildings. There is no precedent for applying LORA to electric bicycle charging piles.
由于同一个电动车充电桩往往具有多个充电接口，在对充电桩进行功率限制时，只会对充电桩上每个充电接口进行功率控制，这对一部分具有大功率电动车的充电用户来说往往是无法进行充电的，或者是在多个充电桩进行同时供电时很容易超过输入线路所能承载的总功率，因此这些充电桩已经无法适应用户的需要。Since the same electric vehicle charging pile often has multiple charging interfaces, when the power of the charging pile is limited, only the power of each charging interface on the charging pile will be controlled. It is often impossible to charge, or when multiple charging piles supply power at the same time, it is easy to exceed the total power that the input line can carry, so these charging piles can no longer meet the needs of users.
发明内容Contents of the invention
本发明的目的在于解决上述问题而提供一种基于LoRa通信的具有电量控制功能的充电桩系统，低成本、低功耗实现电动自行车充电桩通信功能且覆盖距离广阔，并且对用户的充电功率进行了限制，最大程度的确保了供电线路的安全。The purpose of the present invention is to solve the above problems and provide a charging pile system with power control function based on LoRa communication, which realizes the communication function of the electric bicycle charging pile with low cost and low power consumption and has a wide coverage distance, and controls the charging power of the user. The limit is set, and the safety of the power supply line is ensured to the greatest extent.
本发明通过以下技术方案来实现上述目的：一种基于LoRa通信的具有电量控制功能的充电桩系统，包括通讯控制器、充电桩、继电器、电量计量芯片，所述通讯控制器为LoRa物联网基站，所述通电控制器的主线上串联有10～32个最小充电单元，每个最小充电单元通过RS-485总线串联在一起，所有的RS-485总线汇入到车库入口处的通讯控制器的总线上，通讯控制器内部设置有GPRS模块；每个所述最小充电单元均包括具有8条输出线路的充电桩、与充电桩串联的继电器和电量计量芯片，所述充电桩内还设置有功率限制模块和LoRa模块，所述LoRa物联网基站还与每个充电桩内的LoRa模块连接，每一个充电桩通过LoRa模块将数据发送到LoRa物联网基站中，所述LoRa物联网基站与公网云端相互连接，LoRa物联网基站通过以太网或GPRS将数据传输到公网云端；The present invention achieves the above object through the following technical solutions: a charging pile system with power control function based on LoRa communication, including a communication controller, a charging pile, a relay, and a power metering chip, and the communication controller is a LoRa Internet of Things base station 10 to 32 minimum charging units are connected in series on the main line of the power-on controller, and each minimum charging unit is connected in series through the RS-485 bus, and all the RS-485 buses are connected to the communication controller at the entrance of the garage. On the bus, a GPRS module is installed inside the communication controller; each of the minimum charging units includes a charging pile with 8 output lines, a relay connected in series with the charging pile and a power metering chip, and a power meter is also installed in the charging pile. Limit module and LoRa module, the LoRa Internet of Things base station is also connected with the LoRa module in each charging pile, and each charging pile sends data to the LoRa Internet of Things base station through the LoRa module, and the LoRa Internet of Things base station is connected to the public network The clouds are connected to each other, and the LoRa IoT base station transmits data to the public cloud through Ethernet or GPRS;
所述功率限制模块对充电功率进行识别，并根据充电功率判断是否进行充电；当用户待充电的电动自行车充电功率大于或等于600W时，充电桩会拒绝充电并发出无法充电的语音提示；若电动自行车的充电功率小于600W，但如果进行充电则会使充电桩输电线的总负载功率大于或等于2500W，则充电桩会拒绝充电并发出稍后充电的语音提示；只有同时满足充电功率小于600W和总负载功率小于2500W的情况才允许用户进行充电。The power limiting module identifies the charging power, and judges whether to charge according to the charging power; when the charging power of the electric bicycle to be charged by the user is greater than or equal to 600W, the charging pile will refuse to charge and issue a voice prompt that cannot be charged; The charging power of the bicycle is less than 600W, but if charging will make the total load power of the charging pile power line greater than or equal to 2500W, the charging pile will refuse to charge and give a voice prompt for charging later; only if the charging power is less than 600W and Users are only allowed to charge when the total load power is less than 2500W.
进一步的，功率限制模块包括单片机、工作状态指示模块、数据检测模块、继电器、设定功率显示模块、实测功率显示模块、光电耦合电路和A/D转换模块，单片机分别连接工作状态指示模块、设定功率显示模块、实测功率显示模块、光电耦合电路、A/D转换电路，A/D转换电路连接数据检测模块，光电耦合电路与继电器连接，继电器和数据检测模块与保护模块串联，单片机完成数据处理和输出控制功能，数据检测模块完成对负载用电回路电流的采集功能，光电耦合电路和继电器完成控制负载用电回路通断的功能，保护模块完成短路保护功能。Further, the power limiting module includes a single-chip microcomputer, a working state indicating module, a data detection module, a relay, a set power display module, a measured power display module, a photoelectric coupling circuit and an A/D conversion module, and the single-chip microcomputer is respectively connected to the working state indicating module, the setting Constant power display module, measured power display module, photoelectric coupling circuit, A/D conversion circuit, A/D conversion circuit is connected to the data detection module, the photoelectric coupling circuit is connected to the relay, the relay and the data detection module are connected in series with the protection module, and the single chip computer completes the data Processing and output control functions, the data detection module completes the collection function of the load power circuit current, the photoelectric coupling circuit and relay complete the function of controlling the load power circuit on and off, and the protection module completes the short circuit protection function.
进一步的，所述LoRa模块为SX1278芯片组成电路模块。Further, the LoRa module is a circuit module composed of an SX1278 chip.
进一步的，所述LoRa物联网基站设置有两个，分别为主要基站和备用基站，当主要基站长期不能接受到充电桩内部的LoRa模块发送的数据时主要基站立即向公网云端发送报警信号并启动备用基站继续接受充电桩内部的LoRa模块发送的数据，实现LoRa物联网基站热备份。Further, the LoRa Internet of Things base station is provided with two, which are the main base station and the backup base station respectively. When the main base station cannot receive the data sent by the LoRa module inside the charging pile for a long time, the main base station immediately sends an alarm signal to the public network cloud and Start the standby base station to continue to receive the data sent by the LoRa module inside the charging pile, and realize the hot backup of the LoRa IoT base station.
充电桩中的LoRa模块以SX1278芯片为核心，采用LoRa扩频无线通信技术，通信频率为433Mhz，灵敏度达到-142dbm，LoRa的抗干扰能力极强，loRa调制解调器经配置后，可划分的范围为64-4096码片/比特，最高可使用4096码片/比特中的最高扩频因子相对于ZigBee仅能划分的范围为10-12码片/比特。LoRa物联网基站范围内的充电桩均配置LoRa模块，模块本身由充电桩内部供电与核心CPU进行SPI通信，负责将数据远距离发送。The LoRa module in the charging pile takes the SX1278 chip as the core, adopts LoRa spread spectrum wireless communication technology, the communication frequency is 433Mhz, the sensitivity reaches -142dbm, and the LoRa anti-interference ability is extremely strong. After the LoRa modem is configured, the range that can be divided is 64 -4096 chips/bit, the highest spreading factor in 4096 chips/bit can be used at most. Compared with ZigBee, the range that ZigBee can only divide is 10-12 chips/bit. The charging piles within the range of the LoRa Internet of Things base station are all equipped with LoRa modules. The module itself is powered by the internal power supply of the charging pile and communicates with the core CPU through SPI, responsible for sending data over long distances.
本发明的工作流程如下：LoRa物联网基站与LoRa通信之间采用LoRaWAN协议中class A协议，LoRa模块定时向LoRa物联网基站发送数据并立即开启接受窗口，LoRa物联网基站接收到loRa模块发送的数据并及时回应，以此确定本充电桩是否处于联网状态，LoRa物联网基站接收到充电桩发送的有效信息组织并转发给公网云端的云服务器，管理人员可以通过L公网云端查看充电桩的运行情况。用户通过微信可以连接公网云端查看自己的电动自行车的充电情况以及消费情况。LoRa模块长时间未于基站保持通信，可判定该充电桩处于掉线状态，LoRa物联网基站将充电桩情况发送到公网，工作人员看到情况后可以做到及时响应突发情况。LoRa物联网基站长时间未与公网云端保持联网状态更新充电桩状态，可判定该LoRa物联网基站处于掉线，公网云端报警并提示备用基站启动。The working process of the present invention is as follows: the class A protocol in the LoRaWAN protocol is adopted between the LoRa Internet of Things base station and the LoRa communication, the LoRa module regularly sends data to the LoRa Internet of Things base station and immediately opens the receiving window, and the LoRa Internet of Things base station receives the data sent by the loRa module Data and timely response to determine whether the charging pile is in the networked state. The LoRa IoT base station receives the effective information sent by the charging pile and forwards it to the cloud server on the public network cloud. Managers can view the charging pile through the L public network cloud. operating conditions. Users can connect to the public network cloud to check the charging status and consumption status of their electric bicycles through WeChat. The LoRa module has not maintained communication with the base station for a long time, and it can be determined that the charging pile is in a disconnected state. The LoRa IoT base station sends the charging pile situation to the public network, and the staff can respond to emergencies in a timely manner after seeing the situation. If the LoRa IoT base station has not been connected to the public network cloud to update the charging pile status for a long time, it can be determined that the LoRa IoT base station is offline, and the public network cloud will alarm and prompt the backup base station to start.
本发明的有益效果在于：The beneficial effects of the present invention are:
1、因为充电桩本身是不带充电线，而是采用用户的电动自行车自身的充电器进行充电的，因此使用本发明的充电桩进行充电的同时不会对用户的电动自行车的电瓶产生损害，提高电瓶的使用寿命。1. Because the charging pile itself does not have a charging line, but uses the charger of the user's electric bicycle for charging, so the charging pile of the present invention will not cause damage to the battery of the user's electric bicycle. Improve battery life.
2、本发明内部设置有电费计量模块，能准确的测出电瓶车使用电的度数，可以反映不同充电功率的电动自行车的真实电量消费，打破传统通过时间计算费用，对用户更加的公平，并且可以防止商家亏损或倒贴电费。2. The invention is equipped with an electricity metering module inside, which can accurately measure the degree of electricity used by the battery car, and can reflect the real electricity consumption of electric bicycles with different charging powers, breaking the traditional calculation of fees through time, which is more fair to users, and can Prevent merchants from losing money or subsidizing electricity bills.
3、本发明采用LoRa数据传输方案，LoRa物联网基站不仅功耗低而且覆盖范围广，有效避免GPRS信号差以及以太网布线问题，降低了整体的成本低。3. The present invention adopts the LoRa data transmission scheme. The LoRa Internet of Things base station not only has low power consumption but also has a wide coverage area, which effectively avoids poor GPRS signals and Ethernet wiring problems, and reduces the overall cost.
4、本发明在充电桩上设置有蓝牙连接模块，利用蓝牙连接模块与插拔式的蓝牙收发装置的连接实现充电桩与维修人员手持终端的连接，方便维修人员仅依靠插拔式的蓝牙收发装置和手持终端来实现对充电桩数据的拷贝、充电桩位置的确定以及充电桩位置分布图的绘制。4. The present invention is equipped with a Bluetooth connection module on the charging pile, and uses the connection between the Bluetooth connection module and the plug-in Bluetooth transceiver device to realize the connection between the charging pile and the handheld terminal of the maintenance personnel, so that the maintenance personnel can only rely on the plug-in Bluetooth transceiver. The device and the handheld terminal are used to copy the charging pile data, determine the location of the charging pile, and draw the distribution map of the charging pile location.
5、本发明通过设置在充电桩机箱上的二维码实现机箱的对应后台操作，顾客通过手机刷机箱上的二维码进入充电桩后台，在充电桩后台实现充电、控制插座开启和关闭等操作。5. The present invention realizes the corresponding background operation of the chassis through the two-dimensional code set on the chassis of the charging pile. The customer enters the background of the charging pile by swiping the two-dimensional code on the chassis with the mobile phone, and realizes charging in the background of the charging pile, and controls the opening and closing of the socket, etc. operate.
6、本发明能够通过刷卡、微信、支付宝等支付方式，尽可能的为用户支付提供方便，同时能够准确计算用户的耗电量、合理计费，把结算单元从“元”精确到“分”，并且对用户的充电功率进行了限制，功率超过600W的电动车将无法付费充电，最大程度的确保了供电线路的安全。6. The present invention can provide convenience for users to pay as much as possible through credit card, WeChat, Alipay and other payment methods. At the same time, it can accurately calculate the user's power consumption and reasonable billing, and the settlement unit is accurate from "yuan" to "fen". , and the user's charging power is limited, and electric vehicles with a power exceeding 600W will not be able to pay for charging, which ensures the safety of the power supply line to the greatest extent.
附图说明Description of drawings
图1是本发明所述充电桩和云服务器的连接示意图。Fig. 1 is a schematic diagram of the connection between the charging pile and the cloud server according to the present invention.
图2是本发明充电桩系统的连接示意图。Fig. 2 is a schematic diagram of the connection of the charging pile system of the present invention.
图3是本发明功率限制模块的流程示意图。Fig. 3 is a schematic flow diagram of the power limiting module of the present invention.
具体实施方式detailed description
下面结合附图对本发明作进一步说明：The present invention will be further described below in conjunction with accompanying drawing:
如图1～3所示，一种基于LoRa通信的具有电量控制功能的充电桩系统，包括通讯控制器、充电桩、继电器、电量计量芯片，所述通讯控制器为LoRa物联网基站，所述通电控制器的主线上串联有10～32个最小充电单元，每个最小充电单元通过RS-485总线串联在一起，所有的RS-485总线汇入到车库入口处的通讯控制器的总线上，通讯控制器内部设置有GPRS模块；每个所述最小充电单元均包括具有8条输出线路的充电桩、与充电桩串联的继电器和电量计量芯片，所述充电桩内还设置有功率限制模块和LoRa模块，所述LoRa物联网基站还与每个充电桩内的LoRa模块连接，每一个充电桩通过LoRa模块将数据发送到LoRa物联网基站中，所述LoRa物联网基站与公网云端相互连接，LoRa物联网基站通过以太网或GPRS将数据传输到公网云端；As shown in Figures 1 to 3, a charging pile system with power control function based on LoRa communication includes a communication controller, a charging pile, a relay, and a power metering chip. The communication controller is a LoRa Internet of Things base station, and the There are 10 to 32 minimum charging units in series on the main line of the power-on controller, and each minimum charging unit is connected in series through the RS-485 bus, and all the RS-485 buses are connected to the bus of the communication controller at the entrance of the garage. A GPRS module is arranged inside the communication controller; each of the minimum charging units includes a charging pile with 8 output lines, a relay connected in series with the charging pile and a power metering chip, and a power limiting module and a power meter are also arranged in the charging pile. LoRa module, the LoRa Internet of Things base station is also connected to the LoRa module in each charging pile, and each charging pile sends data to the LoRa Internet of Things base station through the LoRa module, and the LoRa Internet of Things base station is connected to the public network cloud , the LoRa IoT base station transmits data to the public network cloud through Ethernet or GPRS;
所述功率限制模块对充电功率进行识别，并根据充电功率判断是否进行充电；当用户待充电的电动自行车充电功率大于或等于600W时，充电桩会拒绝充电并发出无法充电的语音提示；若电动自行车的充电功率小于600W，但如果进行充电则会使充电桩输电线的总负载功率大于或等于2500W，则充电桩会拒绝充电并发出稍后充电的语音提示；只有同时满足充电功率小于600W和总负载功率小于2500W的情况才允许用户进行充电。The power limiting module identifies the charging power, and judges whether to charge according to the charging power; when the charging power of the electric bicycle to be charged by the user is greater than or equal to 600W, the charging pile will refuse to charge and issue a voice prompt that cannot be charged; The charging power of the bicycle is less than 600W, but if charging will make the total load power of the charging pile power line greater than or equal to 2500W, the charging pile will refuse to charge and give a voice prompt for charging later; only if the charging power is less than 600W and Users are only allowed to charge when the total load power is less than 2500W.
进一步的，功率限制模块包括单片机、工作状态指示模块、数据检测模块、继电器、设定功率显示模块、实测功率显示模块、光电耦合电路和A/D转换模块，单片机分别连接工作状态指示模块、设定功率显示模块、实测功率显示模块、光电耦合电路、A/D转换电路，A/D转换电路连接数据检测模块，光电耦合电路与继电器连接，继电器和数据检测模块与保护模块串联，单片机完成数据处理和输出控制功能，数据检测模块完成对负载用电回路电流的采集功能，光电耦合电路和继电器完成控制负载用电回路通断的功能，保护模块完成短路保护功能。Further, the power limiting module includes a single-chip microcomputer, a working state indicating module, a data detection module, a relay, a set power display module, a measured power display module, a photoelectric coupling circuit and an A/D conversion module, and the single-chip microcomputer is respectively connected to the working state indicating module, the setting Constant power display module, measured power display module, photoelectric coupling circuit, A/D conversion circuit, A/D conversion circuit is connected to the data detection module, the photoelectric coupling circuit is connected to the relay, the relay and the data detection module are connected in series with the protection module, and the single chip computer completes the data Processing and output control functions, the data detection module completes the collection function of the load power circuit current, the photoelectric coupling circuit and relay complete the function of controlling the load power circuit on and off, and the protection module completes the short circuit protection function.
进一步的，所述LoRa模块为SX1278芯片组成电路模块。Further, the LoRa module is a circuit module composed of an SX1278 chip.
进一步的，所述LoRa物联网基站设置有两个，分别为主要基站和备用基站，当主要基站长期不能接受到充电桩内部的LoRa模块发送的数据时主要基站立即向公网云端发送报警信号并启动备用基站继续接受充电桩内部的LoRa模块发送的数据，实现LoRa物联网基站热备份。Further, the LoRa Internet of Things base station is provided with two, which are the main base station and the backup base station respectively. When the main base station cannot receive the data sent by the LoRa module inside the charging pile for a long time, the main base station immediately sends an alarm signal to the public network cloud and Start the standby base station to continue to receive the data sent by the LoRa module inside the charging pile, and realize the hot backup of the LoRa IoT base station.
充电桩中的LoRa模块以SX1278芯片为核心，采用LoRa扩频无线通信技术，通信频率为433Mhz，灵敏度达到-142dbm，LoRa的抗干扰能力极强，loRa调制解调器经配置后，可划分的范围为64-4096码片/比特，最高可使用4096码片/比特中的最高扩频因子相对于ZigBee仅能划分的范围为10-12码片/比特。LoRa物联网基站范围内的充电桩均配置LoRa模块，模块本身由充电桩内部供电与核心CPU进行SPI通信，负责将数据远距离发送。The LoRa module in the charging pile takes the SX1278 chip as the core, adopts LoRa spread spectrum wireless communication technology, the communication frequency is 433Mhz, the sensitivity reaches -142dbm, and the LoRa anti-interference ability is extremely strong. After the LoRa modem is configured, the range that can be divided is 64 -4096 chips/bit, the highest spreading factor in 4096 chips/bit can be used at most. Compared with ZigBee, the range that ZigBee can only divide is 10-12 chips/bit. The charging piles within the range of the LoRa Internet of Things base station are all equipped with LoRa modules. The module itself is powered by the internal power supply of the charging pile and communicates with the core CPU through SPI, responsible for sending data over long distances.
本发明的工作流程如下：LoRa物联网基站与LoRa通信之间采用LoRaWAN协议中class A协议，LoRa模块定时向LoRa物联网基站发送数据并立即开启接受窗口，LoRa物联网基站接收到loRa模块发送的数据并及时回应，以此确定本充电桩是否处于联网状态，LoRa物联网基站接收到充电桩发送的有效信息组织并转发给公网云端的云服务器，管理人员可以通过L公网云端查看充电桩的运行情况。用户通过微信可以连接公网云端查看自己的电动自行车的充电情况以及消费情况。LoRa模块长时间未于基站保持通信，可判定该充电桩处于掉线状态，LoRa物联网基站将充电桩情况发送到公网，工作人员看到情况后可以做到及时响应突发情况。LoRa物联网基站长时间未与公网云端保持联网状态更新充电桩状态，可判定该LoRa物联网基站处于掉线，公网云端报警并提示备用基站启动。The working process of the present invention is as follows: the class A protocol in the LoRaWAN protocol is adopted between the LoRa Internet of Things base station and the LoRa communication, the LoRa module regularly sends data to the LoRa Internet of Things base station and immediately opens the receiving window, and the LoRa Internet of Things base station receives the data sent by the loRa module Data and timely response to determine whether the charging pile is in the networked state. The LoRa IoT base station receives the effective information sent by the charging pile and forwards it to the cloud server on the public network cloud. Managers can view the charging pile through the L public network cloud. operating conditions. Users can connect to the public network cloud to check the charging status and consumption status of their electric bicycles through WeChat. The LoRa module has not maintained communication with the base station for a long time, and it can be determined that the charging pile is in a disconnected state. The LoRa IoT base station sends the charging pile situation to the public network, and the staff can respond to emergencies in a timely manner after seeing the situation. If the LoRa IoT base station has not been connected to the public network cloud to update the charging pile status for a long time, it can be determined that the LoRa IoT base station is offline, and the public network cloud will alarm and prompt the backup base station to start.
上述实施例只是本发明的较佳实施例，并不是对本发明技术方案的限制，只要是不经过创造性劳动即可在上述实施例的基础上实现的技术方案，均应视为落入本发明专利的权利保护范围内。The above-described embodiments are only preferred embodiments of the present invention, and are not limitations to the technical solutions of the present invention. As long as they are technical solutions that can be realized on the basis of the above-mentioned embodiments without creative work, they should be regarded as falling into the scope of the patent of the present invention. within the scope of protection of rights.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421822.0ACN107255957A (en) | 2017-06-07 | 2017-06-07 | A kind of charging pile system with electricity quantity control function communicated based on LoRa |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421822.0ACN107255957A (en) | 2017-06-07 | 2017-06-07 | A kind of charging pile system with electricity quantity control function communicated based on LoRa |
| Publication Number | Publication Date |
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| CN107255957Atrue CN107255957A (en) | 2017-10-17 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710421822.0APendingCN107255957A (en) | 2017-06-07 | 2017-06-07 | A kind of charging pile system with electricity quantity control function communicated based on LoRa |
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| CN (1) | CN107255957A (en) |
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