【正文】 2 第一章 概述 選題的背景和意義脈搏攜帶有豐富的人體健康狀況的信息，自公元三世紀(jì)我國(guó)最早的脈學(xué)專著《脈經(jīng)》問(wèn)世以來(lái)，脈學(xué)理論得到不斷的發(fā)展和提高。系統(tǒng)以 STC89C52 單片機(jī)為核心，以光電傳感器利用單片機(jī)系統(tǒng)內(nèi)部定時(shí)器來(lái)計(jì)算時(shí)間，由光電傳感器感應(yīng)產(chǎn)生信號(hào)，單片機(jī)通過(guò)對(duì)信號(hào)累加得到脈搏跳動(dòng)次數(shù)，時(shí)間由定時(shí)器定時(shí)而得。 Pulse measuring instrument0 引 言脈搏測(cè)量在有脈搏時(shí)遮擋光線，無(wú)脈搏時(shí)透光強(qiáng)，所采用的傳感器是紅外接收二極管和紅外發(fā)射二極管。系統(tǒng)可以供用戶測(cè)量當(dāng)時(shí)的脈搏次數(shù)，同時(shí)還可以設(shè)定上限次數(shù)和下限次數(shù)，當(dāng)測(cè)量的范圍超過(guò)設(shè)定的范圍則驅(qū)動(dòng)蜂鳴器報(bào)警提醒，除此外用戶還可以設(shè)定每天鬧鐘提醒測(cè)量，時(shí)間可以自行設(shè)定，結(jié)果最終可以把采集到的脈搏信號(hào)顯示在LCD1602 上。系統(tǒng)運(yùn)行中可以通過(guò)觀察指示燈閃爍，若均勻閃爍說(shuō)明測(cè)量值準(zhǔn)確。XXXX 本 科 畢 業(yè) 論 文 基于單片機(jī)的脈搏測(cè)量?jī)x設(shè)計(jì)Design of Pulse Measuring Instrument Based on Single Chip學(xué)院名稱： 電子信息與電氣工程學(xué)院 專業(yè)班級(jí)： 111111111111111111111111111 學(xué)生姓名： 11111 學(xué) 號(hào)： 11111111111111 指導(dǎo)教師姓名： 11111111 指導(dǎo)教師職稱： 11111 2022 年 05 月目 錄摘要 ...............................................................................................................................IAbstract.......................................................................................................................II引言 ..............................................................................................................................1第一章 概述 ..............................................................................................................2 選題的背景和意義 ............................................................................................2 脈搏測(cè)量?jī)x的發(fā)展與應(yīng)用 ................................................................................3第二章 總體方案的論證與設(shè)計(jì) ........................................................................5 主控模塊的選型和論證 ....................................................................................5 顯示模塊的選型和論證 ....................................................................................5 傳感器的選型和論證 ........................................................................................5 系統(tǒng)整體設(shè)計(jì)概述 ............................................................................................6第三章 系統(tǒng)硬件電路設(shè)計(jì) ..................................................................................8 主控模塊 ............................................................................................................8 STC89C52 單片機(jī)主要特性 ..........................................................................8 STC89C52 單片機(jī)的中斷系統(tǒng) ....................................................................12 單片機(jī)最小系統(tǒng)設(shè)計(jì) ...................................................................................12 LCD 液晶顯示器簡(jiǎn)介 .....................................................................................12 液晶原理介紹 ...............................................................................................13 液晶模塊簡(jiǎn)介 ...............................................................................................13 液晶顯示部分與 STC89C52 的接口 ...........................................................14 信號(hào)采集電路設(shè)計(jì) ..........................................................................................16 傳感器簡(jiǎn)介 ...................................................................................................16 濾波電路 .......................................................................................................17 放大整形電路 ...............................................................................................17第四章 系統(tǒng)軟件設(shè)計(jì) .........................................................................................17 系統(tǒng)軟件總體設(shè)計(jì) ..........................................................................................17 程序設(shè)計(jì)原理 ..................................................................................................19第五章 系統(tǒng)調(diào)試 ..................................................................................................21 軟件調(diào)試 ..........................................................................................................21 硬件調(diào)試 ..........................................................................................................21 調(diào)試結(jié)果 ..........................................................................................................22 誤差分析 ..........................................................................................................22結(jié)論 ............................................................................................................................24致謝 ............................................................................................................................25參考文獻(xiàn) ..................................................................................................................26附錄 ............................................................................................................................27 基于單片機(jī)的脈搏測(cè)量?jī)x設(shè)計(jì)摘要： 脈搏測(cè)量?jī)x在我們的日常生活中已經(jīng)得到了非常廣泛的應(yīng)用,通過(guò)觀測(cè)脈搏信號(hào)，可以對(duì)人體的健康進(jìn)行檢查，通常被用于保健中心和醫(yī)院。系統(tǒng)停止運(yùn)行時(shí)，能夠顯示總的脈搏次數(shù)和時(shí)間。關(guān)鍵詞：STC89C52；脈搏測(cè)量?jī)x；LCD 顯示器；光電傳感器I Design of pulse measuring instrument based on single chipAbstract：Pulse measurement apparatus has been widely used in our daily life. In order to improve the measurement apparatus is simple and accuracy, this paper designs a pulse measuring instrument based on 51 single chip microputer. System to STC89C52 microcontroller as