2.2 ZigBee 合同分析 .....................................................................................................7
第 3 章 家居环境监测系统方案.............................................8
3.1 系统构造.................................................................................................................8
3.2 系统功能定义.........................................................................................................8
3.3 系统设计规定.......................................................................................................10
第 4 章 家居环境监测系统硬件设计........................................11
4.1 系统电源电路.......................................................................................................11
4.2 STC12C5608AD 单片机 .......................................................................................12
4.3 家居环境参数采集模块.......................................................................................13
4.3.1 数字温湿度传感器 DHT11.......................................................................13
4.3.2 烟雾传感器 MQ-2 .....................................................................................14
4.3.3 光照强度传感器........................................................................................14
4.3.4 电压电流检测及保护................................................................................15
4.4 RS485 通讯模块....................................................................................................16
4.5 LCD 液晶显示模块...............................................................................................17
第 5 章 系统软件设计....................................................18
5.1 ZigBee 无线通讯合同 ...........................................................................................18
5.2 温湿度传感器程序...............................................................................................18
5.3 烟雾传感器程序...................................................................................................19
5.4 电压电流检测及程序...........................................................................................20
第 6 章 系统性能测试与评述..............................................21
6.1 硬件测试...............................................................................................................21
6.2 软件测试...............................................................................................................21
总 结..................................................................22
致 谢..................................................................23
