届别2013届学号毕业设计智能家庭烟雾检测火灾报警系统姓名系别、专业导师姓名、职称完成时间淘宝搜店铺：79211941目录摘要.............................................................................................................................................................3Abstract.......................................................................................................................................................41绪论.......................................................................................................................................................51.1课题背景...................................................................................................................................51.2设计概述...................................................................................................................................51.3烟雾报警器的国内外现状.......................................................................................................61.4烟雾报警器的发展趋势...........................................................................................................61.5设计任务分析...........................................................................................................................72总体方案设计.......................................................................................................................................72.1烟雾检测传感器选型...............................................................................................................82.2.1烟雾传感器的介绍.......................................................................................................92.2.2MQ-2半导体气体烟雾传感器.....................................................................................122.2单片机选型.............................................................................................................................132.2.1STC89C52单片机简介.................................................................................................132.2.2单片机的引脚功能描述............................................................................................142.1.3温度采集模块.............................................................................................................153系统的硬件电路.................................................................................................................................163.1单片机最小系统.....................................................................................................................163.2单片机的时钟电路与复位电路设计......................................................................................173.3烟雾检测AD采集电路............................................................................................................173.4显示模块.................................................................................................................................183.5声音报警电路.........................................................................................................................183.6按键控制电路.........................................................................................................................193.7电源模块................................................................
