高速公路沿线供电线路故障短信息报警电路设计研究

Research on Design of Short Message Alarm Circuit for Power Supply Line Fault along Expressways

为解决高速公路沿线供电故障报警问题,基于移动通信系统基本结构、接口标准、短信业务及AT指令对通信模块进行研究开发,设计出一套远程短信息报警电路,通过对SIM900A外部电路设计、通信模块与单片机外部电路设计、通信模块与PC上位机外部电路设计,实现高速公路沿线供电线路短路、断路远程短信息故障报警功能,确保第一时间排除故障,恢复供电。

In order to solve the problem of power supply fault alarm along expressways,a set of remote short message alarm circuit is designed based on the basic structure of mobile communication system,interface standard,short message service and AT command for the communication module,so as to carry out the research and development.The alarm function of short circuit of power supply lines along expressways and remote short message fault of open circuit is realized by designing the external circuit of SIM900A,the external circuit of communication module and microcontroller,and the external circuit of communication module and PC upper computer,so as to ensure timely troubleshooting and restoration of power supply.