基于單片機(jī)的指脈檢測(cè)系統(tǒng)的設(shè)計(jì)(已修改)
2025-08-06 09:31 本頁(yè)面
【正文】 畢 業(yè) 論 文 基于單片機(jī)的指脈檢測(cè)系統(tǒng)的設(shè)計(jì) 系（部） 信息工程系 專 業(yè) 電子信息工程 I 摘要 脈搏測(cè)試儀是用來(lái)測(cè)量一個(gè)人脈搏跳動(dòng)次數(shù)的電子儀器，也是心電圖的主要組成部分，因此，在現(xiàn)代醫(yī)學(xué)上具有重要的作用。目前檢測(cè)脈搏的儀器雖然很多，但是價(jià)格都比較昂貴，本文擬設(shè)計(jì)一款適合家庭使用的簡(jiǎn)易的脈搏測(cè)試儀。 脈搏波 所呈現(xiàn)出的形態(tài) (波形 )、強(qiáng)度 (波幅 )、速率 (波速 )和節(jié)律 (周期 )等方面的綜合信息，在很大程度上反映出人體心血管系統(tǒng)中許多生理病理的血流特征，因此對(duì)脈搏波采集和處理具有很高的醫(yī)學(xué)價(jià)值和應(yīng)用前景。但人體的生物信號(hào)多屬于強(qiáng)噪聲背景下的低頻弱信號(hào)， 脈搏波信號(hào)更是低頻微弱的非電生理信號(hào)，必需經(jīng)過(guò)放大和后級(jí)濾波以滿足采集的要求。 本文的設(shè)計(jì)使用光電傳感器來(lái)獲得人體的脈搏信息，通過(guò)信息處理，單片機(jī)的控制將脈搏信息傳遞到 LCD顯示屏上，從而可以直觀清晰的獲得人體脈搏跳動(dòng)的頻率等信息，自此構(gòu)成了我們?cè)O(shè)計(jì)的脈搏測(cè)試系統(tǒng)。從中 可以得知脈搏跳動(dòng)是否正常以及每分鐘跳動(dòng)的次數(shù)。 最后，本文對(duì)脈搏測(cè)試系統(tǒng)的進(jìn)一步發(fā)展提出了自己的看法。 關(guān)鍵字 ： 指脈檢測(cè)、光電傳感器、單片機(jī)、 LCD 顯示 II Microcontrollerbased design refers to the pulse detection system Abstract Pulse test instrument was used to measure an individual pulse number of electronic instruments, and electrocardiogram of main ponent, therefore, in the modern medicine has an important role in. The detection of pulse instrument although many, but the price is relatively expensive, this paper is intended to design a suitable for household use remended pulse tester. Pulse wave by showing the morphology ( waveform ), strength ( amplitude ), velocity ( velocity ) and rhythm ( cycle ) and other aspects of the prehensive information, largely reflect the human cardiovascular system in many physiological and pathological blood flow characteristics, so the pulse wave acquisition and processing have high medical value and application prospect. But the human biological signals belonging to strong noise background and low frequency weak signal, pulse wave signal is low frequency weak nonelectrophysiologic signals, required after amplification and filtering to meet after the acquisition request. In this paper, the design of photoelectric sensor is used to obtain the pulse information, the information processing of singlechip control of the pulse information is passed to the LCD display screen, which can be intuitively clear access to human pulse frequency and other information, since pose our design pulse test system. From that the pulse is normal and the number of beats per minute. Finally, this article on pulse test system further development to propose own view. Keywords: Finger pulse detection 、 Photoelectric sensor 、 Single chip microputer、 LCD Display III 目 錄 1 緒論 .................................................... 1 本文的研究現(xiàn)狀 ..................................................... 1 本文的研究目的 ..................................................... 3 本文的研究?jī)?nèi)容 ..................................................... 3 2 本系統(tǒng)的整體設(shè)計(jì)方案 ...................................... 4 系統(tǒng)的整體框圖 .................................................... 4 系統(tǒng)的主要組成部分 ................................................ 4 光電脈搏傳感器 ............................................... 4 信號(hào)采集系統(tǒng) ................................................. 5 放大電路 ..................................................... 5 濾波電路 ..................................................... 5 數(shù)據(jù)采集電路 ................................................. 6 AT89S51 單片機(jī) ............................................... 6 顯示電路 ..................................................... 6 3 指脈檢測(cè)電路的設(shè)計(jì) ....................................... 7 指脈傳感器的基本原理 ............................................... 7 檢測(cè)電路的設(shè)計(jì) ..................................................... 7 4 單片機(jī)控制電路的設(shè)計(jì) ...................................... 9 單片機(jī)的選擇 ...................................................... 9 指脈信息的檢測(cè)與控制 ............................................. 11 硬件設(shè)計(jì) .................................................... 11 軟件設(shè)計(jì) .................................................... 12 顯示電路的設(shè)計(jì) ................................................... 18 5 總結(jié)與展望 .............................................. 20 參考文獻(xiàn) ..................................................
研究報(bào)告相關(guān)推薦
鄂ICP備17016276號(hào)-1