基于单片机的自动报警系统的设计

Design of Auto-alarm System Based on Single-chip Microcomputer

设计了一种以公共电话网作为媒介的电话自动报警系统。该系统分为硬件和软件两大部分。硬件部分以单片机AT89C51为控制核心[1],包括自动拨号、检测和放音等电路。软件部分主要为操作界面程序、铃声识别拨号程序、放音程序。重点阐述了人性化的操作界面和自动拨号原理。实验表明,系统具有较高的可靠性。

An Auto-Alarm System based on public telephone net is designed.This system is composed by hardware and software part.The hardware part which contains auto dialing,detecting and playing and etc is controled by microcontroler At89C51.The software part which mainly include operational interface program,dailing and ditecting program,play voice program. Humanization operational inerface and auto dialing principle are described sufficiently. The experimentations indicate that this system has high reliability.