智能电表数据传输通讯多重保护机制设计

Design of Multiple Protection Mechanism for Smart Meter Data Transmission Communication

对远程控制的单相智能电表的通讯系统进行了可靠性设计。首先对其要完成的功能进行了描述,然后对其通讯的硬件外围电路了设计,最后用485总线与上位机进行通讯,完成了远程控制所需要的三个关键寄存器的参数设置,对通讯系统进行了可靠性设计,包括上下位机单片机时钟频率的选择和参数的设置使得波特率一致,通过数据通讯的偶校验、数据加密、数据和校验、数据的多次发送来使得通讯可靠性大大提高。

The reliability design of the remotely controlled single-phase smart meter communication system is carried out.This article first describes the functions to be completed,and then designs the hardware peripheral circuits for communication.Finally,it uses the 485 bus to communicate with the upper computer,and completes the parameter settings of the three key registers required for remote control.The system has been designed for reliability,including the selection of the clock frequency of the upper and lower computer and the setting of parameters to make the baud rate consistent.Through the even communication of data communication,data encryption,data and verification,and multiple transmission of data,the reliability of communication is greatly improved.