红外防盗报警器姓名：马飞班级：08级电信2班学号：P081613567红外防盗报警器的设计目录1引言·························································31.1设计任务与要求·············································42基础知识介绍·················································42.1热释电红外传感器简单介绍···································42.2PIR的原理特性··············································42.3AT89C51单片机简单概述······································52.3.1AT89C51单片机的结构······································52.3.2AT89C51单片机管脚说明····································53方案设计·····················································73.1总体设计思路···············································73.2具体电路模块设计···········································83.2.1热释电红外传感器原理·····································83.2.2放大电路的设计··········································93.2.3时钟电路的设计···········································93.2.4复位电路的设计···········································103.2.5发光二极管报警电路的设计·································103.2.6声音报警电路的设计·······································103.3系统硬件电路的选择及说明···································113.4软件的程序实现············································113.4.1中断服务程序工作流程图····································114软件仿真····················································125总结·························································12附录一设计编程程序···········································13附录二Proteus仿真原理图······································151引言随着社会的不断进步和科学技术、经济的不断发展，人们生活水平得到很大的提高，对私有财产的保护意识在不断的增强，因而对防盗措施提出了新的要求。本设计就是为了满足现代住宅防盗的需要而设计的家庭式电子防盗系统。就目前市面上装备主要有压力触发式防盗报警器、开关电子防盗报警器和压力遮光触发式防盗报警器等各种报警器，但这几种比较常见的报警器都存在一些缺点。而本设计中所使用的红外线是不可见光，有很强的隐蔽性和保密性，因此在防盗、警戒等安保装置中得到了广泛的应用。这种热释电红外传感器能以非接触形式检测出人体辐射的红外线，并将其转变为电压信号，同时，热释电红外传感器既可用于防盗报警装置，也可用于制动控制、接近开关、遥测等领域。1.1设计任务与要求(1)该设计包括硬件和软件设计两个部分。模块划分为数据采集、键盘控制、报警等模块子函数。(2)本红外线防盗报警系统由热释电红外传感器、报警器、单片机控制电路、LED控制电路及相关的控制管理软件组成。用户终端完成信息采集、处理、数据传送、功能设定、本地报警等功能。终端由中央处理器、输入模块、输出模块、通信模块、功能设定模块等部分组成。(3)系统可实现功能。当人员外出时，可把报警系统设置在外出