單片機脈搏測量儀

電子機電論文編號:JD060  此設計附開題報告,原理圖,仿真,程序,文獻綜述,字數:11310,頁數:39

目  錄
摘 要 ............................................................2
Abstract .........................................................3
目  錄........................................................... 4
引  言........................................................... 6
第一章  硬件電路設計 .............................................7
1.1 AT89C2051主要性能 ............................................7
1.2  AT89C2051的結構框圖 .........................................8
1.3  AT89C2051的引腳說明..........................................9
1.4復位電路 ......................................................11
1.5 振蕩電路 .....................................................12
第二章 基本結構模塊 ..............................................13
2.1脈搏波檢測電路 ................................................13
2.2脈搏信號拾取電路 ..............................................13
2.3信號的放大 ....................................................15
2.4 波形整形部分 .................................................18
第三章 整體電路分析...............................................21
3.1 光發射電路 ...................................................21
3.2 光電轉換電路 .................................................21
3.3信號采集及處理系統 ............................................22
3.4 過采樣技術的應用 .............................................22
3.5整體硬件電路設計...............................................24
第四章  軟件設計 .................................................25
4.1程序設計.......................................................26
4.2程序源代碼.....................................................28
第五章   系統調試與測試結果分析 ..................................31
5.1安裝 ..........................................................31
5.2 調試 .........................................................32
5.2.1硬件調試 ....................................................32
5.2.2軟件調試 ....................................................33
5.2.3軟硬聯調 ....................................................33
設計總結 .........................................................35
致    謝 .........................................................38
參考文獻 .........................................................40

摘 要
醫院的護士每天都要給住院的病人把脈記錄病人每分鐘脈搏數，方法是用手按在病人腕部的動脈上，根據脈搏的跳動進行計數。為了節省時間，一般不會作1分鐘的測量，通常是測量10秒鐘時間內心跳的數，再把結果乘以6即得到每分鐘的心跳數，即使這樣做還是比較費時，而且精度也不高。本文介紹一種用單片機制作的脈搏測量儀，只要人把手指放在傳感器內2秒鐘就可以精確測量出每分鐘脈搏數，測量結果用三位數字顯示。

關鍵詞: AT89C2051 單片機 脈搏測量儀

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