Introduces the basic work of telephone terminal process. It is controlled by 89C51 single chip microcomputer,and it have all kinds of detectors,alarm,sensors.Signals are detected by sensors and convert to digital signal according to certain rules. Read the signal by single-chip microcomputer,then sended a control signal to the designated circuit,at the same time the speech report system is started and report to the master or a security system for by telephone.%终端电话机的基本工作过程是由89C51单片机控制，并接有各种探测器、报警器、传感器。由传感器检测到信号并按一定的规律将它转换成数字信号。由单片机把信号读入，经处理后向指定的电路发送控制信号，同时启动语音报告系统，通过电话向主人或安全系统进行远程报告。
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