目录摘要··································································1引言···································································11设计任务与要求·················································22基础知识介绍···························································22.1热释电红外传感器简单介绍·············································32.2PIR的原理特性······················································32.3AT89C51单片机简单概述··············································33方案设计·····························································43.1总体设计思路·······················································43.2具体电路模块设计····················································53.2.1热释电红外传感器原理···············································53.3系统硬件电路的选择及说明·············································73.4软件的程序实现·······················································83.4.1主程序工作流程图····················································83.4.2中断服务程序工作流程图············································94软件仿真·······························································95总结································································106参考文献·····························································117致谢·····························································128附录································································13摘要：基于社会安全保障的需要，电子报警这门综合技术的正在不断的发展。与此同时，红外技术已成为先进科学技术的重要组成部分，由于红外线是不可见光，因此用它进行红外探测监控，具有良好的隐蔽性，白天和黑夜都可以使用，而且其抗干扰能力强。防盗报警系统利用单片机控制技术，自动探测发生在布防区内的侵入行为，产生报警信号，一旦发生突发事件，就会向人们发出报警提示，从而让人即使采取应对措施。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。本设计包括硬件和软件设计两个部分。硬件部分包括单片机控制电路、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。因...