【摘 要】
：
介绍一种利用２２０伏同相电力线载波传送ＤＴＭＦ编码数据的系统中的通讯及控制电路的设计，它与数据采集电路及数据处理电路构成一个完整的系统。其抗干扰强、精度较高，测量参数可为电压、电
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介绍一种利用２２０伏同相电力线载波传送ＤＴＭＦ编码数据的系统中的通讯及控制电路的设计，它与数据采集电路及数据处理电路构成一个完整的系统。其抗干扰强、精度较高，测量参数可为电压、电流、有功功率等。
This paper introduces a design of communication and control circuit in the system of transmitting DTMF coded data by 220V power line carrier, which forms a complete system with data acquisition circuit and data processing circuit. Its strong anti-interference, high accuracy, measurement parameters for the voltage, current, active power.
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