目 录
第 1 章 绪 论 ...........................................................................................................1
1.1 课题的来源及意义 ....................................................................................1
1.2 CAN 总线 ..................................................................................................2
1.3 国内外研究现状 ........................................................................................2
1.4 论文研究的内容 ........................................................................................3
第 2 章 方案论证 .....................................................................................................5
2.1 概述 ............................................................................................................5
2.2 方案论证 ....................................................................................................5
2.2.1 控制器模块论证 .............................................................................5
2.2.2 电源模块论证 .................................................................................6
2.2.3 压力采集模块论证 .........................................................................7
2.2.4 流量采集模块论证 .........................................................................7
2.2.5 温度采集模块论证 .........................................................................8
2.3 远程数据采集系统设计方案 ....................................................................8
2.4 系统总体设计方案 ....................................................................................9
第 3 章 硬件设计 ...................................................................................................11
3.1 AT89S52 单片机 .....................................................................................11
3.2 复位电路 ..................................................................................................12
3.3 晶振电路 ..................................................................................................12
3.4 A/D 转换电路 ..........................................................................................13
3.5 电源电路 ..................................................................................................15
3.6 报警电路 ..................................................................................................17
3.7 显示电路 ..................................................................................................18
3.8 CAN 总线接口电路 ................................................................................19
3.9 I/O 口扩展电路........................................................................................20
3.10 滤波电路 ................................................................................................21
3.11 放大电路 ................................................................................................22
3.12 键盘电路 ................................................................................................23
3.13 压力传感器的选择 ................................................................................24
