目 录
摘 要 .....................................................................................................................................................................I
第 1 章 绪论.........................................................................................................................................................1
1.1、课题背景意义........................................................................................................................................1
1.2、国内外发展现状....................................................................................................................................1
1.3、研究内容................................................................................................................................................2
第 2 章 软硬件开发平台.....................................................................................................................................3
2.1 系统开发工具...........................................................................................................................................3
2.1.1 硬件开发工具介绍........................................................................................................................3
2.1.2 软件开发工具介绍.......................................................................................................................4
2.2 系统元器件介绍.......................................................................................................................................5
2.2.1 信号采集模块介绍........................................................................................................................5
2.2.2 ADC 模块介绍 ............................................................................................................................10
2.2.3 单片机控制模块介绍.................................................................................................................12
2.2.4 显示模块介绍.............................................................................................................................17
2.3 程序设计介绍......................................................................................................................................18
第 3 章 系统硬件设计.......................................................................................................................................21
3.1、整体设计方案......................................................................................................................................21
3.1.1、设计原理...................................................................................................................................21
3.1.2、系统框图...................................................................................................................................21
3.2、元器件方案选择..................................................................................................................................22
3.2.1、 单片机芯片选择.....................................................................................................................22
3.2.2、红外温度传感器选择...............................................................................................................22
3.3、系统的模块设计..................................................................................................................................23
3.3.1 信号采集模块电路图..................................................................................................................23
3.3.2 AD 转换电路图...........................................................................................................................23
3.3.3 单片机控制模块..........................................................................................................................24
3.3.4 显示模块.....................................................................................................................................24
3.4、系统改进设计......................................................................................................................................25
3.4.1 时钟显示模块.............................................................................................................................25
第四章 系统软件设计.........................................................................................................................................28
4.1、软件实现..............................................................................................................................................28
4.2、程序模块分析......................................................................................................................................29
4.2.1 ADC 模块程序分析 ....................................................................................................................29
4.2.2 时钟显示模块程序分析.............................................................................................................29
4.2.3 主程序分析.................................................................................................................................30
结 论.....................................................................................................................................................................31
致 谢...................................................................................................................................................................32
参考文献...............................................................................................................................................................33
