基于单片机和GSM模块的红外探测远程报警系统

GSM网络作为无线智能监控系统的信息传输平台是一种很有效的方法,本文介绍了一个基于单片机、GSM网络收发技术和热释电红外传感器的红外报警器,这个对人们的住宅安全防护智能化的发展,满足人们对居住安全的强烈要求方面有一定的实际意义。本设计利用STC89C52单片机为控制器,SIM300作为无线通信模块,红外传感器作为监控单元,单片机和SIM300通过串口进行通讯。如果监控单元探测到有人闯入,作为信号产生的红外探测器发出一个信号,初始的热释电红外传感器信号经过滤波技术消除噪声从而平滑和变为一个方波信号,通过这个方波信号的作用,STC89C52能够控制SIM300模块发送短消息给用户报警。

Infrared remote alarm system based on single-chip microcomputer and GSM module

It is a very effective method to take advantage of GSM networks as the information transport platform of wireless intelligent monitor system. A infrared alarm system based on the technologies of single chip microcomputer, GSM networks and pyroelectric infrared sensor is introduced. It have some practical significance to the development of intelligent residential security systems and to meet users strong requirements for security. In the plan design of security systems, the controller uses STC89C52 as main controller, SIM300 as Wireless communication module,infrared sensor as the monitoring unit. The communication between single chip computer and the SIM300 module is done through the serial ports. If the monitoring unit detects that someone breaks into or not, infrared sensor as signal generator give a signal. Initial signal of pyroelectric infrared sensor were smoothed by using filtering technique for eliminating noise data and were convert to a square-wave signal, through the triggering square-wave signal, STC89C52 could control SIM300 module to send short messages to users for alarms.