【摘要】 针对高压开关柜的高压、强电磁场的工作环境,设计了高压端测温模块和低压端接收模块的电路,采用射频传输方式解决了信号的高压隔离问题,并通过互感实现了测温模块的自供电。设计的基于无线传输的高压母线温度在线监测系统,实现了显示被测母线温度、实时报警、控制处理等功能。接收模块和主机间采用RS-485接口,使系统扩展更为灵活。更多还原

【Abstract】 This paper discusses the principle and property of the temperature measurement module、the receive module and the wireless signal transmission, solving the problem of isolating the electric potential of transmission signal and obtaining the power supply of t he temperature measurement module in a high voltage position. The hardware and software design of the distributed online temperature monitoring system is mainly introduced. The system can monitor the temperature by showing the state report on the PC, setup the parameter conveniently, and handle the emergency properly, also the system can be expanded flexiblely by use RS -485 bus interface.更多还原