目 录
摘 要……..............................................................................................................I
Abstract.................................................................................................................II
第 1 章 绪论 .........................................................................................................1
1.1 课题背景 ................................................................................................1
1.2 国内外文献综述.....................................................................................3
1.3 论文研究内容.........................................................................................3
第 2 章 数据采集系统设计思路 ..........................................................................5
2.1 系统主要功能.........................................................................................5
2.2 方案比较 ................................................................................................5
2.2.1 主从式结构 ...................................................................................5
2.2.2 单片机与 PC 机相连结构.............................................................7
2.3 系统主程序设计......................................................................................7
2.4 本章小结 ................................................................................................9
第 3 章 数据采集系统的硬件设计 ....................................................................10
3.1 主控制器部分.......................................................................................10
3.1.1 单片机的组成 ............................................................................10
3.1.2 单片机的特点 ............................................................................10
3.1.3 单片机的选择 ............................................................................11
3.2 输入部分的选择...................................................................................13
3.2.1 A/D 转换芯片的选择 .................................................................13
3.2.2 开关量的采集 ............................................................................14
3.2.3 脉冲信号的采集 ........................................................................15
3.3 通信部分的选择....................................................................................15
3.4 显示接口部分.......................................................................................19
3.5 键盘接口部分.......................................................................................20
3.6 电源部分的设计...................................................................................21
3.7 单片机抗干扰电路 ...............................................................................21
3.8 本章小结 ..............................................................................................22
