学校代码：10904机械工程测试技术课程设计红外防盗报警器的设计姓名：田德阳学号：201215120143指导教师：卢纪丽院系：机电工程学院专业：机械设计制造及其自动化完成日期：2014年12月3日摘要本系统是基于单片机AT89C51设计的家用无线防盗报警器。它采用的元件是热释电红外传感器，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，灵敏度高、安全可靠、抗干扰能力强。该报警器成本较低，易于安装可靠性和稳定性高，并且在功能上具有良好的可扩展性，便于市场应用与推广。本设计分硬件设计和软件设计两个部分，硬件部分包括红外探头电路、单片机控制电路、驱动执行报警电路、LED控制电路等部分组成。整个系统是在系统软件控制下工作的。AbstractThissystemisdesignedbasedonsinglechipAT89C51homewirelessburglaralarm.Itusestheelementpyroelectricinfraredsensors,anditsproductionissimple,lowcost,moreconvenienttoinstall,andanti-theftperformanceisrelativelystable,highsensitivity,safe,reliable,anti-interferenceability.Thealarmislowcost,easytoinstallhighreliabilityandstability,andhasagoodscalabilityinfunctionality,easeofmarketapplicationandpromotion.Thedesignpointsofhardwaredesignandsoftwaredesignintwoparts,hardwaresectionincludesinfraredsensorcircuit,MCUcontrolcircuittodrivetheimplementationofthealarmcircuit,LEDcontrolcircuitandothercomponents.Thewholesystemisworkingunderthecontrolofthesystemsoftware.Keywords:SCM;infraredsensor；Wirelessalarm；datacollection目录摘要.............................................................IAbstract.......................................................................................................................II目录.....................................................................................................................III第一章绪论...............................................................................................................11.1选题背景............................................................................................................11.2设计任务与要求...............................................................................................1第二章主要元器件选择与介绍..........................................................................22.1传感器介绍........................................................................................................22.1.1热释电红外线传感器简单介绍.............................................................22.1.2热释电红外传感器结构.........................................................................2第三章系统硬件设计.............................................................................................33.1整体设计方案....................................................................................................33.2信号放大电路....................................................................................................33.2.1主要电路元件介绍.................................................................................33.2.2实现功能.................................................................................................43.3比较电路............................................................................................................53.3.1实现功能.................................................................................................53.4声音报警电路....................................................................................................53.4.1主要...