A wireless three-phase electrical parameters measurement system based on the FreeModbus protocol is implemented. How to migrate the FreeModbus protocol on the main chip ARM of STM32 series is elaborated. A full digital and wireless measurement of the three-phase electrical parameters is achieved. As a result of the industry standard FreeModbus is used, it is very good with the compatible configuration software.%设计实现了一套基于FreeModbus协议的无线三相电参数测量系统.详述了FreeModbus协议在主控芯片STM32系列ARM上的移植方法.实现了三相电参数测量的全数字化和无线化.由于采用了符合工业标准FreeModbus协议,因此对现有组态软件的兼容性非常好.
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