便携式电力参数监测系统的设计与实现

Design and Implementation of Portable Power Parameter Monitoring System

为了解决复杂环境下无法实时监测电力参数的问题,设计出一种远距离(long range,LoRa)无线电组网的便携式电力参数监测系统。该系统基于STM32-Corbe-M4处理器内核和IM1281B电量计能模块,实现电压、电流、功率、频率等电力参数的采集;采用LoRa通信方式,实现远距离低功耗的数据传输。针对不同负载进行测试,结果表明,当电路的功率因素提高时,总电流明显减小,电路消耗的功率减少,有功功率增大,电源的利用率得以提高;该系统能够替代三表法测试,能够摆脱传统实验室的束缚,实际采集的功率参数与上位机显示的功率参数基本一致,测试数据的准确性为98%。

In order to solve the problem of real-time power parameter monitoring in complex environments,this study presents a portable power parameter monitoring system based on long range(LoRa)radio network.Utilizing the STM32-Corbe-M4 processor core and IM1281B energy metering module,the system enables the acquisition of voltage,current,power,and frequency parameters.It uses LoRa communication technology to realize long-distance low-power data transmission.Test results based on different loads show that when the power factor of the circuit is improved,the total current reduces remarkably,the power consumption by the circuit reduces,the active power increases,and the utilization rate of power supply is improved.The system can replace the three-meter test and get rid of the defects of the traditional laboratory.The power parameters actually collected are basically the same as those displayed by the upper computer,and the accuracy of the test data is 98%.