目 录
摘要 .............................................................................................................................................I
Abstract .....................................................................................................................................II
第 1 章 绪论.............................................................................................................................1
1.1 研究的目的和意义....................................................................................................1
1.2 国内外的研究现状....................................................................................................2
1.3 设计内容....................................................................................................................3
第 2 章 课题方案论证.............................................................................................................4
2.1 采用压电式脉搏传感器............................................................................................4
2.2 采用光电式脉搏传感器............................................................................................5
2.3 方案确定....................................................................................................................6
第 3 章 硬件电路设计.............................................................................................................7
3.1 元器件介绍................................................................................................................7
3.1.1 AT89C2051 单片机........................................................................................7
3.1.2 LM324 简介..................................................................................................10
3.1.3 7809 和 7805 简介........................................................................................11
3.2 整体电路分析............................................................................................................13
3.2.1 脉搏信号采集电路.......................................................................................13
3.2.2 脉搏信号处理电路.......................................................................................14
3.2.3 单片机控制显示电路...................................................................................17
第 4 章 软件设计.....................................................................................................................19
4.1 系统总体软件流程..................................................................................................19
4.2 整体程序设计..........................................................................................................19
第 5 章 软件仿真与系统实物.................................................................................................22
5.1 Keil 编译软件..........................................................................................................22
5.2 Protues 软件仿真.....................................................................................................26
5.2.1 Protues 软件简介..........................................................................................26
5.2.2 电路仿真.......................................................................................................27
5.3 PCB 板生成 .............................................................................................................29
