文档介绍：红外防盗报警器的设计
胡锐锋
电子信息工程专业 学号:6１0210６01０
摘 要:本系统采用了热释电红外传感器，它的制作简单、成本低、安装比较方便,而且防盗性能比较稳定,抗干扰能力强、灵敏度高、安全可靠。这种防盗器安装隐蔽,不易被盗贼发现，同时它的信号经过单片机系统处理后方便和PC机通信,便于多用户统一管理。、红外探头电路、驱动执行报警电路、ＬED控制电路等部分组成。处理器采用51系列单片机AＴ89Ｃ51，整个系统是在系统软件控制下工作的.
关键词:单片机;红外传感器；数据采集;报警电路
目 录
0 摘要···································································1
1引言····································································4
·······················································4
2 基础知识介绍···························································4
·············································4
ＰIR的原理特性·························································５
２．3 AT89C5１单片机简单概述·················································５
．1 AT89Ｃ51单片机的结构·················································5
2．3。2 AT8９C５1单片机管脚说明···············································6
3 方案设计································································8
3。1总体设计思路 ··························································8
3．２具体电路模块设计 ······················································9
。１ 热释电红外传感器原理 ················································9
。2 放大电路的设计 ······················································9
3。2．３ 时钟电路的设计 ······················································9
。4 复位电路的设计······················································１０
３． 发光二极管报警电路的设计············································10
。6 声音报警电路的设计··················································11
3．３ 系统硬件电路的选择及说明·············································1１
3．4 软件的程序实现·······················································12
····················································１２
3。4．2中断服务程序工作流程图···············································13
４ 软件仿真·······························································1３
5总结···································································１