基于usb接口的脈搏檢測(cè)儀的設(shè)計(jì)畢業(yè)論文(已修改)
2025-07-21 09:34 本頁(yè)面
【正文】 編號(hào) 淮安信息職業(yè)技術(shù)學(xué)院 畢業(yè)論文 題 目 基于 USB接口的脈搏檢測(cè)儀的設(shè)計(jì) 學(xué)生姓名 劉巍 學(xué) 號(hào) 11012111 院 系 電子信息工程 專(zhuān) 業(yè) 電子信息技術(shù) 班 級(jí) 110121 指導(dǎo)教師 楊金紅 顧問(wèn)教師 孫云龍 二〇一五年六月摘 要 I 摘 要 本文設(shè)計(jì)、制作了一種基于 USB 接口的脈搏檢測(cè)儀，硬件電路包括數(shù)據(jù)采集電路、放 大濾波電路、控制電路及電源電路。其中數(shù)據(jù)采集部分采用的是光電脈搏傳感器；放大電路采用了 AD620；濾波電路由二階有源低通濾波器構(gòu)成；控制電路選用了帶 USB 控制器、 ADC 的微控制器 C8051F320；儀器軟件設(shè)計(jì)分 MCU 固件程序設(shè)計(jì)、 USB 設(shè)備驅(qū)動(dòng)程序設(shè)計(jì)、數(shù)據(jù)采集程序設(shè)計(jì)及軟件濾波程序設(shè)計(jì)等四部分組成。儀器的硬件、軟件各部分配合良好，測(cè)試所得脈搏波形能夠正確反映人體脈搏的真實(shí)特征。該儀器同時(shí)具有使用、攜帶方便等優(yōu)點(diǎn)，現(xiàn)場(chǎng)測(cè)試表明：本系統(tǒng)已達(dá)到預(yù)期設(shè)計(jì)要求。 關(guān)鍵詞： 脈搏 光電傳感器 低通濾波 基線(xiàn)漂移 C8051F320 Abstract II Abstract In this paper, design and production of a kind of pulse detector based on USB interface, enlarge hardware circuit including data acquisition circuit and filter circuit, control circuit and power circuit. The data acquisition part adopts photoelectric pulse sensor。 Amplifier AD620 is adopted。 Filter circuit posed of secondorder active lowpass filter。 Control circuit selects the microcontroller with USB controller and ADC with C8051F320。 Instrument software design of MCU firmware program design, USB device driver design, data acquisition program design and the design of the software filtering programs of four parts. The parts of hardware and software of the instrument with good, testing the pulse waveform can correctly reflect the real characteristics of the pulse of the human body. The instrument also has the advantages of use, easy to carry, field test shows that this system has reached the expected design requirements. Keywords:Pulse Photosensor Low pass filtering C8051F320 USB interface 目 錄 III 目 錄 摘 要 .......................................................................................................................I ABSTRACT ........................................................................................................... II 第一章 引言 ............................................................................................................ 1 脈搏檢測(cè)儀研究現(xiàn)狀和未來(lái)的發(fā)展趨勢(shì) ................................................... 1 設(shè)計(jì)研究的內(nèi)容 .......................................................................................... 2 脈搏波檢測(cè)電路 ................................................................................... 2 信號(hào)采集及處理系統(tǒng) ............................................................................ 3 第二章 系統(tǒng)硬件設(shè)計(jì) .......................................................................................... 5 傳感器電路設(shè)計(jì) ........................................................................................... 5 傳感器的定義與組成 ............................................................................ 5 光電容積式麥博傳感器的原理 ............................................................ 5 光電傳感器的電路設(shè)計(jì) ........................................................................ 6 光電式脈搏傳感器實(shí)驗(yàn)測(cè)量和噪聲分析 ............................................ 6 放大濾波電路設(shè)計(jì) ....................................................................................... 7 放大電路的設(shè)計(jì) .................................................................................... 7 低通濾波電路設(shè)計(jì) ................................................................................ 9 USB 總線(xiàn)簡(jiǎn)介 ............................................................................................... 9 USB 體系結(jié)構(gòu) ...................................................................................... 10 MCU 及外圍電路設(shè)計(jì) ................................................................................. 11 C8051F320 介紹 .................................................................................. 11 USB 寄存器訪(fǎng)問(wèn) .................................................................................. 14 USB 時(shí)鐘配置 ...................................................................................... 14 MCU 為外圍電路設(shè)計(jì) .......................................................................... 14 本章小結(jié) .................................................................................................... 15 第三章 系統(tǒng)軟件設(shè)計(jì) ........................................................................................ 17 MCU 固件程序設(shè)計(jì) ..................................................................................... 17 數(shù)據(jù)采集程序設(shè)計(jì) ..................................................................................... 18 VISUAL BASIC 簡(jiǎn)介 ................................................................... 18 數(shù)據(jù)采集系統(tǒng) ..........
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