三相多功能电能表自动抄表系统的设计

Design of automatic meter reading system of three-phase multifunction meter

阐述了三相电能表远程抄表的复合式通信结构,根据RS-485总线可靠性高、硬件设计简单、控制方便、成本低廉等优点,提出了三相多功能电能表的串行通信方案,设计了硬件电路、主机通信程序和电表通信程序。实践结果表明,电能表自动抄表系统数据传输稳定,适用于供电局集中抄表和居民电气自动抄表。

This paper introduces a compound communication structure of remote meter reading of three-phase meter,proposes serial communication plan for three-phase multifunction meter on the basis of RS-485 bus＇s advantages,including high reliability,simple hardware design,convenient control and low cost,and designs hardware circuit,host communication program and meter communication program.Practice demonstrates that automatic meter reading system stably transmit data and is adequate for centralized meter reading of power supply bureau and automatic meter reading of residents.