论文编号:JD060  此设计附开题报告,原理图,仿真,程序,文献综述,字数:11310,页数:39

摘 要
医院的护士每天都要给住院的病人把脉记录病人每分钟脉搏数，方法是用手按在病人腕部的动脉上，根据脉搏的跳动进行计数。为了节省时间，一般不会作1分钟的测量，通常是测量10秒钟时间内心跳的数，再把结果乘以6即得到每分钟的心跳数，即使这样做还是比较费时，而且精度也不高。本文介绍一种用单片机制作的脉搏测量仪，只要人把手指放在传感器内2秒钟就可以精确测量出每分钟脉搏数，测量结果用三位数字显示。

关键词: AT89C2051 单片机 脉搏测量仪

Abstract
Nurse hospital wants to give in hospital every day the patient takes the pulse to record the patient each minute pulse number, the method is with the hand according to on the patient wrist's department artery, carries on the counting according to pulse's beat. For the saving of time, will not make 1 minute survey generally, usually will be surveys in 10 seconds time palpitation's number, will be multiplied by again the result 6 namely obtains each minute palpitation number, even if will do this is quite time-consuming, moreover the precision will not be high. This article introduced that one kind the pulse measuring instrument which manufactures with the monolithic integrated circuit, so long as the human places the finger in the sensor 2 seconds to be possible the precision measuring each minute pulse number, the measurement result showed with three digit.

key word: AT89C2051 monolithic integrated circuit pulse measuring instrument

目  录
摘 要 ............................................................2
Abstract .........................................................3
目  录........................................................... 4
引  言........................................................... 6
第一章  硬件电路设计 .............................................7
1.1 AT89C2051主要性能 ............................................7
1.2  AT89C2051的结构框图 .........................................8
1.3  AT89C2051的引脚说明..........................................9
1.4复位电路 ......................................................11
1.5 振荡电路 .....................................................12
第二章 基本结构模块 ..............................................13
2.1脉搏波检测电路 ................................................13
2.2脉搏信号拾取电路 ..............................................13
2.3信号的放大 ....................................................15
2.4 波形整形部分 .................................................18
第三章 整体电路分析...............................................21
3.1 光发射电路 ...................................................21
3.2 光电转换电路 .................................................21
3.3信号采集及处理系统 ............................................22
3.4 过采样技术的应用 .............................................22
3.5整体硬件电路设计...............................................24
第四章  软件设计 .................................................25
4.1程序设计.......................................................26
4.2程序源代码.....................................................28
第五章   系统调试与测试结果分析 ..................................31
5.1安装 ..........................................................31
5.2 调试 .........................................................32
5.2.1硬件调试 ....................................................32
5.2.2软件调试 ....................................................33
5.2.3软硬联调 ....................................................33
设计总结 .........................................................35
致    谢 .........................................................38
参考文献 .........................................................40

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