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本文介绍基于ST电力线Modem器件ST7536和单片机89C51的电表联网管理系统设计以及多机通讯技术，其特点是可以不占用其它通讯电缆，安装使用方便，经济实用。
This article describes the design of meter network management system based on the ST power line Modem device ST7536 and the single-chip microcomputer 89C51 and the multi-machine communication technology. The utility model can not occupy other communication cables, and is convenient to install and use, and is economical and practical.