目 录
1 绪论 ...........................................................................................................................1
1.1 引言 ........................................................................................................................1
1.2 课题研究背景及意义 ............................................................................................2
1.3 本文主要内容安排 ................................................................................................4
2 系统总体设计方案 ...................................................................................................6
2.1 火灾监控系统整体设计 ........................................................................................6
2.2 火灾报警系统类型及火灾探测器选型 ................................................................6
2.2.1 火灾报警系统类型 .............................................................................................6
2.2.2 火灾探测器原理 .................................................................................................7
2.3 防盗系统整体设计 ................................................................................................8
2.4 防盗系统主要功能模块设计 ................................................................................9
3 系统硬件设计 .........................................................................................................10
3.1 主要器件选型 ......................................................................................................10
3.1.1 核心处理器单片机的选择 ...............................................................................10
3.1.2 气体传感器的选择 ...........................................................................................11
3.1.3 温度传感器的选择 ...........................................................................................12
3.1.4 无线通信模块芯片的选择 ...............................................................................13
3.1.5 A/D 转换芯片的选择 .......................................................................................14
3.1.6 键盘输入模块芯片选择 ...................................................................................14
3.2 系统各功能子模块设计 ......................................................................................15
3.2.1 电源模块 ...........................................................................................................15
3.2.2 单片机内部结构及最小系统 ...........................................................................16
3.2.3 火灾探测器的设计 ...........................................................................................18
3.2.4 RS232 串口设计 ...............................................................................................18
3.2.5 A/D 模块设计 ...................................................................................................19
3.2.6 无线通信模块 ...................................................................................................20
3.2.7 电机驱动模块 ...................................................................................................20
