基于51单片机的寝室防盗警报监控系统设计

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1、0902班张德欢2009118010232目录1绪论................................................................................................11.1发展概况与设计背景............................................................11.2本设计概述....................................................

2、....................22总体设计方案...........................................................................32.1方案选择论证....................................................................32.2主控芯片单片机的选择....................................................32.2.1AT8

3、9C51的主要性能...................................................42.2.2AT89C51的引脚结构...................................................52.3传感器的选择..........................................................................62.3.1传感器的超声波探测的原理结构.......................

4、...........72.3.2超声波探测原理..............................................................72.3.3超声波传感器的结构.....................................................83系统硬件设计.........................................................................133.1低频带通放大电路........

5、...................................................133.2电压比较整形电路...........................................................143.2.1双限电压比较器的工作原理.......................................143.3报警电路..................................................................

6、..........153.4灯光警示电路....................................................................163.5状态显示电路....................................................................173.6供电电源电路....................................................................173.7单片机最

7、小系统................................................................184系统软件..................................................................................194.1主程序流程图....................................................................194.2中断函数流程图.........

8、.......................................................205结论...........................................................................................21致谢.....................................................