技术领域technical field
本发明涉及充电桩运维设备领域，具体涉及一种可以远程重启充电桩以及对充电桩停送电状态进行报警的控制装置。The invention relates to the field of charging pile operation and maintenance equipment, in particular to a control device capable of remotely restarting a charging pile and giving an alarm to the state of power failure of the charging pile.
背景技术Background technique
国家电网在全国范围推行“一车一桩”的电动车充电站全面覆盖计划，该项目服务器端为车联网平台，终端是基于搭载TCU计费装置并安装在充电站内的充电桩。充电桩控制核心为通过基于3G、4G网络的PPP协议连接至车联网平台的TCU计费装置，TCU计费装置通过通讯总线连接充电设备控制器为电动汽车充电。每个充电桩由充电站内整流柜引出的主供电母线提供直流电源，主供电母线在充电桩内分为两路，一路供给充电桩内的TCU计费装置，以及由TCU计费装置控制的人机交互设备、多功能电流表、照明系统等二次设备，另一路供给充电设备控制器，由充电设备控制器调制输出给电动车BMS。现有充电桩在实际运行中，一般存在下列问题：a）充电桩启动和运行过程中TCU计费装置与车联网平台的连接存在一定的失败率，当出现连接失败时，需要人工对TCU计费装置重启以恢复；b）由TCU计费装置控制的人机交互设备一般使用嵌入式系统，由于系统比较复杂，也存在系统死机的情况，需要人工对人机交互设备重启以恢复运行；c）TCU计费装置在网络连接失败、死机、母线失压、充电桩跳闸等无响应状态时，车联网平台判断其为离线，累积离线时间是车联网平台的重要考核指标，但由于TCU计费装置在这些故障状态时已无法完成其基本功能，造成实际离线时间与系统累计时间严重不符，以半小时巡检周期计算，每次故障最长误差可达1小时；d）母线失压时，TCU计费装置同时掉电，维修人员不能及时知晓并排除故障，也客观上增加了累积离线时间。当充电桩的TCU计费装置出现的离线、故障、死机等非正常工作状态时，现有技术一般是通过在充电桩的安装现场对充电桩的TCU计费装置的电源开关（接触器或空气开关）进行重启操作，从而恢复充电桩的正常整机功能。The State Grid is implementing a "one vehicle, one pile" comprehensive coverage plan for electric vehicle charging stations across the country. The server side of the project is the Internet of Vehicles platform, and the terminal is based on charging piles equipped with TCU billing devices and installed in charging stations. The control core of the charging pile is the TCU billing device connected to the Internet of Vehicles platform through the PPP protocol based on 3G and 4G networks. The TCU billing device is connected to the charging equipment controller through the communication bus to charge the electric vehicle. Each charging pile is provided with DC power by the main power supply bus drawn from the rectifier cabinet in the charging station. The main power supply bus is divided into two lines in the charging pile, and one is supplied to the TCU billing device in the charging pile and the people controlled by the TCU billing device. Computer interaction equipment, multi-function ammeter, lighting system and other secondary equipment, the other is supplied to the charging equipment controller, and the charging equipment controller modulates the output to the electric vehicle BMS. In the actual operation of existing charging piles, there are generally the following problems: a) There is a certain failure rate in the connection between the TCU billing device and the Internet of Vehicles platform during the start-up and operation of the charging pile. Restart the billing device to recover; b) The human-computer interaction equipment controlled by the TCU billing device generally uses an embedded system. Due to the complexity of the system, there are also cases where the system crashes, and it is necessary to manually restart the human-computer interaction equipment to resume operation; c ) When the TCU billing device is in a non-responsive state such as network connection failure, crash, bus voltage loss, charging pile tripping, etc., the Internet of Vehicles platform judges it as offline, and the accumulated offline time is an important assessment index for the Internet of Vehicles platform. When the device is in these fault states, it can no longer complete its basic functions, resulting in a serious discrepancy between the actual offline time and the accumulated system time. Calculated based on the half-hour inspection cycle, the longest error of each fault can reach 1 hour; d) When the bus loses pressure, The TCU billing device is powered off at the same time, the maintenance personnel cannot know and troubleshoot in time, and the accumulated offline time is objectively increased. When the TCU billing device of the charging pile is in an abnormal working state such as offline, failure, or crash, the existing technology generally uses the power switch (contactor or air switch) of the TCU billing device of the charging pile at the installation site of the charging pile Switch) to restart the operation, so as to restore the normal function of the charging pile.
现有技术中有通过4G信号通讯的远程重启装置，可以对充电桩的TCU计费装置进行远程重启，但因为使用的是4G网络通讯，而充电桩分布广泛，大量充电桩位于高速服务区或者边远山区等4G通讯设备未覆盖或覆盖不良地带，造成这种重启装置无法实现相应控制功能。In the prior art, there is a remote restart device through 4G signal communication, which can remotely restart the TCU billing device of the charging pile. However, because 4G network communication is used, and the charging piles are widely distributed, a large number of charging piles are located in high-speed service areas or 4G communication equipment such as remote mountainous areas is not covered or has poor coverage, which makes the restart device unable to realize the corresponding control function.
另外，充电桩所在充电站可能因受恶劣天气、线路检修等原因造成主供电母线失压而使整站充电桩离线，在主供电母线电压恢复后，应在充电桩的车联网平台中及时配置离线充电桩重新在线。如果能够缩短从主供电母线电压恢复到配置离线充电重新在线的时间间隔，将改善电动汽车用户的整体使用体验。In addition, the charging station where the charging pile is located may be offline due to the loss of voltage of the main power supply bus due to bad weather, line maintenance, etc. The offline charging pile is back online. If the time interval from the restoration of the main power supply bus voltage to the configuration of offline charging and back online can be shortened, the overall experience of electric vehicle users will be improved.
发明内容Contents of the invention
本发明旨在提供一种应用于充电桩的远程重启和停送电报警装置，可代替人工对充电桩进行远程重启、状态遥感、停送电报警等功能操作。The present invention aims to provide a remote restart and power stop alarm device applied to charging piles, which can replace manual operations on charging piles such as remote restart, state remote sensing, and power stop alarms.
本发明采用如下技术方案：The present invention adopts following technical scheme:
一种充电桩远程重启和停送电报警装置，包括为装置供电的独立电源模块，还包括：天线，用于与移动基站交互2G数据；GSM模块，包括数字通讯端口、DTMF收发端口、振铃信号输出端口和摘机信号输入端口；DTMF收发单元，包括DTMF数据存储器，以及DTMF接收接口电路和DTMF发送接口电路；开关单元，包括串接在主供电母线与TCU计费装置之间用于通断电源的开关部件、控制开关部件通断状态的控制电路和连接在所述开关部件的主供电母线一侧端口上的电压传感器；中央处理单元，用于运行业务处理程序，并在业务处理程序的作用下控制所述GSM模块、DTMF收发单元和所述开关部件的至少一个；独立供电模块，包括功率输出端口、蓄电池和连接至主供电母线的功率输入端口；其中，独立供电模块的功率输出端口连接至GSM模块、DTMF收发单元、开关单元和中央处理单元并为这些设备供电，所述天线与所述GSM模块连接，所述GSM模块的数字通讯端口和振铃信号端口与中央处理单元连接，所述GSM模块的DTMF收发端口与DTMF接收接口电路和DTMF发送接口电路连接，所述开关单元的控制电路与中央处理单元连接并受中央处理器控制，所述开关单元的电压传感器与中央处理单元连接。通过将可以通过控制电路控制通断的开关单元串接入主供电母线与TCU计费装置之间，可以将原系统必须由人工操作TCU计费装置电源的空气开关或者接触器启停的充电桩，改造为可远程控制的充电桩，同时在开关单元的开关部件的主供电母线一侧端口（即电源输入端）增装电压传感器，并将电压传感器连接到中央处理单元，使中央处理器可以监视主供电母线的电压状态，判断电压异常或者从异常中恢复时发送消息给远端工作人员或者车联网平台，从而尽快重新配置充电桩在线。A remote restart and stop power transmission alarm device for charging piles, including an independent power supply module for powering the device, and also includes: an antenna for exchanging 2G data with a mobile base station; a GSM module including a digital communication port, a DTMF transceiver port, a ringing Signal output port and off-hook signal input port; DTMF transceiver unit, including DTMF data memory, and DTMF receiving interface circuit and DTMF sending interface circuit; The switching part of the power supply, the control circuit for controlling the on-off state of the switching part and the voltage sensor connected to the port on the side of the main power supply bus of the switching part; the central processing unit is used to run the business processing program, and Under the action of controlling at least one of the GSM module, the DTMF transceiver unit and the switch part; the independent power supply module includes a power output port, a storage battery and a power input port connected to the main power supply bus; wherein, the power output of the independent power supply module The port is connected to the GSM module, the DTMF transceiver unit, the switch unit and the central processing unit and supplies power to these devices, the antenna is connected to the GSM module, and the digital communication port and the ringing signal port of the GSM module are connected to the central processing unit , the DTMF transceiver port of the GSM module is connected with the DTMF receiving interface circuit and the DTMF sending interface circuit, the control circuit of the switch unit is connected with the central processing unit and controlled by the central processing unit, the voltage sensor of the switch unit is connected with the central processing unit unit connection. By connecting the switch unit that can be controlled on and off through the control circuit in series between the main power supply bus and the TCU billing device, the charging pile that the original system must be manually operated by the air switch or contactor of the power supply of the TCU billing device can be turned on and off. , transform it into a charging pile that can be remotely controlled, and at the same time add a voltage sensor to the main power supply bus side port (ie, power input end) of the switch unit of the switch unit, and connect the voltage sensor to the central processing unit, so that the central processing unit can Monitor the voltage status of the main power supply bus, and send a message to the remote staff or the Internet of Vehicles platform when the voltage is abnormal or recovers from the abnormality, so as to reconfigure the charging pile online as soon as possible.
对本发明技术方案的一个改进在于：所述DTMF处理单元的DTMF数据存储器和中央处理单元位于所述充电桩远程重启和停送电报警装置的同一半导体芯片内。通过选用具有大容量程序存储器的半导体芯片，通过执行DTMF解码编码程序段，将从GSM模块获取的DTMF的模拟信号转化为数字信号并存储到DTMF数据存储器供中央处理单元调用。这种方案电气结构简单，但需通过软件解码编码，需要较高的晶振频率。An improvement to the technical solution of the present invention is that: the DTMF data memory of the DTMF processing unit and the central processing unit are located in the same semiconductor chip of the charging pile remote restart and power failure alarm device. By selecting a semiconductor chip with a large-capacity program memory and executing the DTMF decoding and encoding program segment, the DTMF analog signal obtained from the GSM module is converted into a digital signal and stored in the DTMF data memory for the central processing unit to call. This scheme has a simple electrical structure, but needs to be decoded and coded by software, and requires a higher crystal oscillator frequency.
对本发明技术方案的另一个改进在于：所述DTMF处理单元的DTMF数据存储器位于所述充电桩远程重启和停送电报警装置的第一半导体芯片内，所述中央处理单元位于所述充电桩远程重启和停送电报警装置的第二半导体芯片内，DTMF数据存储器与中央处理单元通过第一半导体芯片与第二半导体芯片之间的电路连接。第一半导体芯片仅通过硬件对DTMF模拟信号解码编码，同样将从GSM模块获取的DTMF的模拟信号转化为数字信号并存储到DTMF数据存储器供中央处理单元调用。这种方案电气结构稍复杂，但硬件编码解码解码编码不占用中央处理器的时钟周期，同时可靠性较高。Another improvement to the technical solution of the present invention is that: the DTMF data memory of the DTMF processing unit is located in the first semiconductor chip of the charging pile remote restart and stop power transmission alarm device, and the central processing unit is located in the charging pile remote In the second semiconductor chip of the alarm device for restarting and stopping power transmission, the DTMF data memory and the central processing unit are connected through a circuit between the first semiconductor chip and the second semiconductor chip. The first semiconductor chip only decodes and encodes the DTMF analog signal through hardware, and also converts the DTMF analog signal obtained from the GSM module into a digital signal and stores it in the DTMF data memory for calling by the central processing unit. The electrical structure of this scheme is slightly complicated, but the hardware encoding, decoding, decoding and encoding does not occupy the clock cycle of the central processing unit, and has high reliability at the same time.
对本发明技术方案的改进还在于：所述天线通过SMA接头与所述GSM模块可拆卸连接。充电桩一般为金属外壳，对信号有屏蔽作用，优选考虑天线部署时，可拆卸连接支持将天线置于充电桩外部，并通过较短的连接线和SMA接头与GSM模块连接，提高充电桩远程重启和停送电报警装置安装时的适配性。The improvement to the technical solution of the present invention also lies in that: the antenna is detachably connected to the GSM module through an SMA connector. The charging pile is generally a metal shell, which has a shielding effect on the signal. When the antenna is deployed, the detachable connection supports placing the antenna outside the charging pile and connecting it to the GSM module through a short cable and SMA connector to improve the remote control of the charging pile. The adaptability of the installation of the restart and stop power transmission alarm device.
对本发明上述各技术方案的进一步改进还在于：天线固定于充电桩外部；所述充电桩远程重启和停送电报警装置还包括语音模块，所述语音模块包括存储有设备状态语音信息的语音数据存储器和与语音数据存储器连接的语音控制单元，所述语音控制单元通过传输模拟信号的电路与GSM模块的语音输入模拟端口连接。这样在充电桩远程重启和停送电报警装置短信无应答时，也可通过直接语音拨号的方式查询其工作状态，增加工业应用的系统可靠性。Further improvements to the above-mentioned technical solutions of the present invention lie in that: the antenna is fixed outside the charging pile; the charging pile remote restart and stop power transmission alarm device also includes a voice module, and the voice module includes voice data that stores voice information about the device status memory and a voice control unit connected to the voice data memory, the voice control unit is connected to the voice input analog port of the GSM module through a circuit for transmitting analog signals. In this way, when the remote restart of the charging pile and the short message of the power failure alarm device do not respond, the working status can also be queried through direct voice dialing, increasing the system reliability of industrial applications.
本发明产生的积极效果如下：The positive effect that the present invention produces is as follows:
本发明所述一种充电桩远程重启和停送电报警装置，可实现在3G、4G信号覆盖不良的偏远地区使用SMS、DTMF等2G通讯协议替代GPRS网络协议实现可靠远程重启充电桩、检查充电桩运行状态等功能，同时选用DTMF远程通讯可以兼容人工拨号通讯和计算机系统拨号通讯等不同应用场景的需要。2G网络语音通道可靠稳定，在中国甚至全球基本实现了基础的全覆盖，而3G、4G网络仍然不能在短时间内实现偏远地区的全覆盖，特别是光纤铺设也难以到达的地区，可以以较低成本实质增加充电桩可安装地的覆盖范围。The remote restart and stop power transmission alarm device of charging piles described in the present invention can realize reliable remote restarting of charging piles and check charging by using 2G communication protocols such as SMS and DTMF instead of GPRS network protocols in remote areas with poor 3G and 4G signal coverage. Functions such as pile running status, and the selection of DTMF remote communication can be compatible with the needs of different application scenarios such as manual dial-up communication and computer system dial-up communication. The 2G network voice channel is reliable and stable, and has basically achieved basic full coverage in China and even the world. However, 3G and 4G networks still cannot achieve full coverage in remote areas in a short period of time, especially in areas where optical fiber laying is difficult to reach. The low cost substantially increases the coverage of where charging piles can be installed.
附图说明Description of drawings
图1为本发明实施例一的一种充电桩远程重启和停送电报警装置的安装位置及接线示意图；Figure 1 is a schematic diagram of the installation location and wiring of a charging pile remote restart and stop power transmission alarm device according to Embodiment 1 of the present invention;
图2为本发明实施例一的一种充电桩远程重启和停送电报警装置的系统信息结构简化示意图；Fig. 2 is a simplified schematic diagram of the system information structure of a charging pile remote restart and power transmission stop alarm device according to Embodiment 1 of the present invention;
图3为本发明实施例二的一种充电桩远程重启和停送电报警装置的GSM模块、DTMF收发单元和中央处理单元的电路简化示意图；Fig. 3 is a simplified circuit schematic diagram of a GSM module, a DTMF transceiver unit and a central processing unit of a charging pile remote restart and stop power transmission alarm device according to Embodiment 2 of the present invention;
其中，10是GSM模块，20是第一半导体芯片，30是第二半导体芯片。Wherein, 10 is a GSM module, 20 is a first semiconductor chip, and 30 is a second semiconductor chip.
具体实施方式Detailed ways
以下结合实施例及附图详细描述本发明的实施方式。 Embodiments of the present invention will be described in detail below in conjunction with examples and accompanying drawings.
实施例一Embodiment one
如图1、图2所示，本实施例是一种充电桩远程重启和停送电报警装置（以下简称装置），应用于安装有TCU计费装置的充电桩，所述充电桩的主供电母线（DC400V）分出一路接入空气开关入线侧，空气开关出线连接分线板后为TCU计费装置、人机交互设备、照明设备供电。本实施例串接入主供电母线和空气开关入线侧之间。本装置包括为装置内部所有部件供电的独立供电模块（输出DC16V），还包括：天线、GSM模块、DTMF收发单元、中央处理单元、开关单元和语音模块。开关单元包括串接在主供电母线与空气开关之间用于通断电源的开关部件（本实施例中为继电器，也可以是晶闸管、IGBT等无触点开关器件）、控制开关部件通断状态的控制电路（本实施例为续流二极管和驱动三极管组成的常规驱动电路，本领域技术人员可以根据具体需要进行进一步改进）和连接在所述开关部件的主供电母线一侧端口上的电压传感器，本实施例中采用单进线电压传感器方案，即，仅从主供电母线引入正母线到继电器干接点一侧接线柱，同时从该接线处引出导线接电压传感器第一输入端，从独立供电模块的功率输出端口负极连接到电压传感器第二输入端，电压传感器将第一输入端和第二输入端的实时电压处理为标准信号后传输给中央处理单元，继电器干接点另一侧接线柱接入空气开关输入接线孔。本领域技术人员容易根据常规技术手段选择其他形式的电路如双进线非接触式电压传感器方案等实现本装置要求的连接关系。As shown in Figure 1 and Figure 2, this embodiment is a charging pile remote restart and stop power transmission alarm device (hereinafter referred to as the device), which is applied to a charging pile equipped with a TCU billing device, and the main power supply of the charging pile One branch of the busbar (DC400V) is connected to the incoming side of the air switch, and the outgoing line of the air switch is connected to the distribution board to supply power for the TCU billing device, human-computer interaction equipment, and lighting equipment. In this embodiment, it is connected in series between the main power supply bus and the incoming side of the air switch. This device includes an independent power supply module (output DC16V) for powering all components inside the device, and also includes: antenna, GSM module, DTMF transceiver unit, central processing unit, switch unit and voice module. The switch unit includes a switch component (relay in this embodiment, or a non-contact switch device such as a thyristor, IGBT, etc.) connected in series between the main power supply bus and the air switch to control the on-off state of the switch component. The control circuit (this embodiment is a conventional drive circuit composed of a freewheeling diode and a drive triode, which can be further improved by those skilled in the art according to specific needs) and a voltage sensor connected to the port on the side of the main power supply bus of the switch component , In this embodiment, the single-incoming line voltage sensor solution is adopted, that is, only the positive bus bar is introduced from the main power supply bus bar to the terminal post on the side of the dry contact of the relay, and at the same time, the lead wire is drawn from this connection point to connect to the first input terminal of the voltage sensor, from the independent power supply The negative electrode of the power output port of the module is connected to the second input terminal of the voltage sensor. The voltage sensor processes the real-time voltage of the first input terminal and the second input terminal into a standard signal and then transmits it to the central processing unit. The terminal on the other side of the dry contact of the relay is connected to the Air switch input wiring hole. Those skilled in the art can easily select other forms of circuits, such as a dual-inlet non-contact voltage sensor solution, according to conventional technical means, to realize the connection relationship required by the device.
本实施例所述GSM模块优选为SIM800C模块，该模块是将GSM射频芯片、基带处理芯片、存储器、功放器件等集成在一块线路板上，具有独立的操作系统、GSM射频处理功能、基带处理功能并提供标准接口的功能模块，其标准接口有数字通讯端口，并分别提供了音频接口、振铃信号接口和摘机信号接口。数字通讯端口可以通过串行指令与其他设备通讯，音频接口可以提供收发声音信号的功能。The GSM module described in this embodiment is preferably a SIM800C module, which integrates GSM radio frequency chips, baseband processing chips, memory devices, power amplifier devices, etc. on a circuit board, and has independent operating systems, GSM radio frequency processing functions, and baseband processing functions. It also provides functional modules with standard interfaces. The standard interfaces include digital communication ports, and provide audio interfaces, ringing signal interfaces and off-hook signal interfaces respectively. The digital communication port can communicate with other devices through serial commands, and the audio interface can provide the function of sending and receiving sound signals.
本实施例所述装置中：天线，用于与移动基站交互2G数据；GSM模块，包括数字通讯端口、DTMF收发端口、振铃信号输出端口和摘机信号输入端口；DTMF收发单元，包括DTMF数据存储器，以及DTMF接收接口电路和DTMF发送接口电路；中央处理单元，用于运行业务处理程序，并在业务处理程序的作用下控制所述GSM模块、DTMF收发单元和所述开关部件的至少一个；其中，所述天线与所述GSM模块连接，所述GSM模块的数字通讯端口和振铃信号端口与中央处理单元连接，所述GSM模块的DTMF收发端口与DTMF接收接口电路和DTMF发送接口电路连接，所述开关单元的控制电路与中央处理单元连接并受中央处理器控制，所述开关单元的电压传感器与中央处理单元连接。通过将可以通过控制电路控制通断的开关单元串接入主供电母线与TCU计费装置之间，可以将原系统必须由人工操作空气开关或者接触器启停的充电桩，改造为可远程控制启停的充电桩，同时在开关单元的开关部件的主供电母线一侧端口（即电源输入端）增装电压传感器，并将电压传感器连接到中央处理单元，使中央处理器可以监视主供电母线的电压状态，判断电压异常或者从异常中恢复时发送消息给远端工作人员或者车联网平台，从而尽快重新配置充电桩在线。In the device described in this embodiment: antenna, for exchanging 2G data with the mobile base station; GSM module, including digital communication port, DTMF transceiver port, ringing signal output port and off-hook signal input port; DTMF transceiver unit, including DTMF data Memory, and DTMF receiving interface circuit and DTMF sending interface circuit; Central processing unit, for running business processing program, and under the effect of business processing program, control at least one of described GSM module, DTMF transceiver unit and described switch part; Wherein, the antenna is connected with the GSM module, the digital communication port and the ring signal port of the GSM module are connected with the central processing unit, and the DTMF transceiver port of the GSM module is connected with the DTMF receiving interface circuit and the DTMF sending interface circuit , the control circuit of the switch unit is connected with the central processing unit and controlled by the central processing unit, and the voltage sensor of the switch unit is connected with the central processing unit. By connecting the switching unit that can be controlled on and off through the control circuit in series between the main power supply bus and the TCU billing device, the charging pile that must be started and stopped by a manual air switch or contactor in the original system can be transformed into a remote control Start and stop the charging pile, and at the same time install a voltage sensor on the main power supply bus side port (that is, the power input end) of the switch unit of the switch unit, and connect the voltage sensor to the central processing unit, so that the central processor can monitor the main power supply bus When judging the abnormal voltage or recovering from the abnormal voltage, send a message to the remote staff or the Internet of Vehicles platform, so as to reconfigure the charging pile online as soon as possible.
本实施例所述天线通过SMA接头与所述GSM模块可拆卸连接。天线安装于充电桩的金属外壳外部，通过延长引线链接到装置的SMA接头，SMA接头与GSM模块的天线端口连接。The antenna described in this embodiment is detachably connected to the GSM module through an SMA connector. The antenna is installed outside the metal shell of the charging pile, and is connected to the SMA connector of the device through an extension lead, and the SMA connector is connected to the antenna port of the GSM module.
本实施例中所述DTMF处理单元的DTMF数据存储器和中央处理单元位于所述充电桩远程重启和停送电报警装置的同一半导体芯片内。本实施例选用64位或32位ARM处理器等具有大容量程序存储器的半导体芯片，使用半导体芯片内部分RAM作为DTMF数据存储器，通过执行DTMF解码编码程序段，将从GSM模块获取的DTMF的模拟信号转化为数字信号并存储到DTMF数据存储器供中央处理单元调用。In this embodiment, the DTMF data memory of the DTMF processing unit and the central processing unit are located in the same semiconductor chip of the charging pile remote restart and power transmission stop alarm device. The present embodiment selects 64 or 32 ARM processors and other semiconductor chips with large-capacity program memory for use, uses part of the RAM in the semiconductor chip as the DTMF data memory, by executing the DTMF decoding and encoding program segment, the simulation of the DTMF obtained from the GSM module The signal is converted into a digital signal and stored in the DTMF data memory for calling by the central processing unit.
本实施例所述充电桩远程重启和停送电报警装置还包括语音模块，所述语音模块包括存储有设备状态语音信息（如正常运行状态，失压状态，正在重启状态等）的语音数据存储器和与语音数据存储器连接的语音控制单元，所述语音控制单元通过传输模拟信号的电路与GSM模块的语音输入模拟端口连接。这样在充电桩远程重启和停送电报警装置短信无应答时，也可通过直接语音拨号的方式查询其工作状态，增加工业应用的系统可靠性。The charging pile remote restart and power transmission stop alarm device described in this embodiment also includes a voice module, and the voice module includes a voice data memory storing voice information of the equipment status (such as normal operation status, voltage loss status, restarting status, etc.) and a voice control unit connected to the voice data memory, the voice control unit is connected to the voice input analog port of the GSM module through a circuit for transmitting analog signals. In this way, when the remote restart of the charging pile and the short message of the power failure alarm device do not respond, the working status can also be queried through direct voice dialing, increasing the system reliability of industrial applications.
以下对本实施例的工作原理做出简单说明。The working principle of this embodiment is briefly described below.
一般目前解决充电桩运行中的各种问题时，必须面对下面两个事实：1）TCU计费装置的复位按照软复位、硬复位、TCU系统复位三个层级递进进行，过程复杂难以调试；2）TCU计费装置内部具有独立的SIM卡，通过PPP协议连接服务器进行通讯，因为网络层级较高，所以通讯错误率也高，在PPP拨号失败的情况下则无法获取运营商分配IP，设备基本处于功能完全丧失的状态。本发明技术方案要可靠解决充电桩远程重启和停送电报警问题也要面对上述两个情况。DTMF是双音多频技术的简称，曾用于传统电话拨号系统，现在基本作为向老旧系统兼容而保留，甚至大部分通讯模块已经取消对该功能的支持，本实施例的充电桩远程重启和停送电报警装置在原有TCU计费装置外部另建2G网络所支持的DTMF、SMS服务通讯通道，相当于实现了通讯的热备份，从而解决要解决充电桩远程重启和停送电报警时必须要面对的上述两个问题。同时，本实施例在连接至TCU计费装置等控制设备的供电线路设置电压传感器和电流传感器间接监视TCU计费装置等控制设备的运行状态，在主供电母线失压时，充电桩远程重启和停送电报警装置利用独立供电模块的蓄电池提供的电力同时利用基于2G网络的DTMF和SMS服务向运维工作人员或车联网平台发送信号，即停送电报警功能，直接或者辅助完成充电桩离线时间的同步。当TCU计费装置复位或者运行过程中被检测到处于无法通讯的状态，充电桩远程重启和停送电报警装置通过上述的电压传感器和电流传感器检测充电桩的主供电母线状态，分析后，通过电压电流遥测，将数据回传给远端工作人员或者车联网平台，远端工作人员或者车联网平台经过综合分析，远程操作本发明的开关部件通过完全断电的方式实现对具体充电桩控制系统的重启而不影响主供电母线或者充电站上整流柜、变压器等功率设备的运行。Generally, when solving various problems in the operation of charging piles, the following two facts must be faced: 1) The reset of the TCU billing device is carried out in three levels: soft reset, hard reset, and TCU system reset. The process is complicated and difficult to debug ;2) The TCU billing device has an independent SIM card inside, and communicates with the server through the PPP protocol. Because the network level is high, the communication error rate is also high. In the case of PPP dialing failure, the operator cannot obtain the IP assigned by the operator. The device is essentially in a state of complete loss of functionality. In order to reliably solve the problems of remote restart of charging piles and stop power transmission alarms, the technical solution of the present invention must also face the above two situations. DTMF is the abbreviation of dual-tone multi-frequency technology. It was used in the traditional telephone dialing system. Now it is basically reserved for compatibility with the old system. Even most communication modules have canceled the support for this function. The charging pile in this embodiment can be restarted remotely. The DTMF and SMS service communication channels supported by the 2G network are built outside the original TCU billing device, which is equivalent to realizing the hot backup of communication, so as to solve the problem of remote restart of charging piles and power failure alarms. The above two problems must be faced. At the same time, in this embodiment, a voltage sensor and a current sensor are installed on the power supply line connected to the control equipment such as the TCU billing device to indirectly monitor the operating status of the control equipment such as the TCU billing device. The power supply stop alarm device uses the power provided by the battery of the independent power supply module and simultaneously uses the DTMF and SMS services based on 2G network to send signals to the operation and maintenance staff or the Internet of Vehicles platform, that is, the power supply stop alarm function, directly or auxiliary completion of the charging pile offline Synchronization of time. When the TCU billing device is reset or is detected to be unable to communicate during operation, the charging pile remote restart and stop power transmission alarm device detects the state of the main power supply bus of the charging pile through the above-mentioned voltage sensor and current sensor. After analysis, pass Voltage and current telemetry, the data is sent back to the remote staff or the Internet of Vehicles platform, and the remote staff or the Internet of Vehicles platform undergoes comprehensive analysis, and the remote operation of the switch part of the present invention realizes the control system of the specific charging pile by completely cutting off the power. The restart without affecting the operation of the main power supply bus or power equipment such as rectifier cabinets and transformers on the charging station.
实施例二Embodiment two
本实施例与实施例一的区别为，如图3所示，所述DTMF处理单元的DTMF数据存储器位于所述充电桩远程重启和停送电报警装置的第一半导体芯片20（本实施例选用单片DTMF信号收发器MT8880，片内有专用寄存器作为DTMF数据存储器）内，所述中央处理单元位于所述充电桩远程重启和停送电报警装置的第二半导体芯片30（本实施例选用51系列单片机AT89S52）内，DTMF数据存储器与中央处理单元通过第一半导体芯片与第二半导体芯片之间的电路连接。如图二所示，其中C2、R5、R7以及MT8880内部的集成运放和拨号音滤波器组成DTMF接收接口电路，通过MT8880内部逻辑控制电路将接收的DTMF信息保存到MT8880内的DTMF数据存储器；其中R9、R10、R11、C3、8050（三极管）以及MT8880内部的双音频门控电路和D/A转换器组成DTMF发送接口电路，通过MT8880内部逻辑控制电路将DTMF数据存储器需要发送的DTMF信息发送给GSM模块；其中DTMF接收接口电路和DTMF发送接口电路一起与GSM模块10的DTMF收发端口连接，实现半双工通讯；其中第一半导体芯片20和第二半导体芯片30之间通过连接的D0、D1、D2、D3引线传递DTMF数据存储器的数据。这种方案允许使用价格较低廉的8位或16单片机作为中央处理单元，可以实现与实施例一接近的功能效果。The difference between this embodiment and Embodiment 1 is that, as shown in Figure 3, the DTMF data memory of the DTMF processing unit is located in the first semiconductor chip 20 of the charging pile remote restart and stop power transmission alarm device (selected in this embodiment) The single-chip DTMF signal transceiver MT8880 has a dedicated register on the chip as a DTMF data memory), and the central processing unit is located in the second semiconductor chip 30 of the charging pile remote restart and stop power transmission alarm device (this embodiment selects 51 series microcontroller AT89S52), the DTMF data memory and the central processing unit are connected through the circuit between the first semiconductor chip and the second semiconductor chip. As shown in Figure 2, C2, R5, R7, and the integrated operational amplifier and dial tone filter inside the MT8880 form the DTMF receiving interface circuit, and the received DTMF information is saved to the DTMF data memory in the MT8880 through the internal logic control circuit of the MT8880; Among them, R9, R10, R11, C3, 8050 (transistor), dual audio gating circuit and D/A converter inside MT8880 form the DTMF sending interface circuit, and the DTMF information that needs to be sent by the DTMF data memory is sent through the MT8880 internal logic control circuit To the GSM module; wherein the DTMF receiving interface circuit and the DTMF sending interface circuit are connected together with the DTMF transceiver port of the GSM module 10 to realize half-duplex communication; wherein between the first semiconductor chip 20 and the second semiconductor chip 30 by connecting D0, The D1, D2, and D3 leads transmit the data of the DTMF data memory. This solution allows the use of a relatively cheap 8-bit or 16 single-chip microcomputer as the central processing unit, and can achieve a functional effect close to that of the first embodiment.
| Application Number | Priority Date | Filing Date | Title |
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| CN201810635026.1ACN108614497B (en) | 2018-06-20 | 2018-06-20 | A kind of charging pile remote reboot and stop power transmission warning device |
| Application Number | Priority Date | Filing Date | Title |
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| CN201810635026.1ACN108614497B (en) | 2018-06-20 | 2018-06-20 | A kind of charging pile remote reboot and stop power transmission warning device |
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| CN108614497Btrue CN108614497B (en) | 2019-11-26 |
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| CN201810635026.1AActiveCN108614497B (en) | 2018-06-20 | 2018-06-20 | A kind of charging pile remote reboot and stop power transmission warning device |
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