论文部分内容阅读
本文介绍了一种利用公用电话网进行远程预警的系统。它是由AT89C52单片机、DTMF收发器MT8880、APR9600芯片来发送语音信号的一种报警装置。此电话远程报警系统可以通过电话线发送语音报警信号。
This article describes a system that uses the public telephone network for remote alerting. It is by AT89C52 microcontroller, DTMF transceiver MT8880, APR9600 chip to send voice signals an alarm device. This telephone remote alarm system can send voice alarm signals over the telephone line.