基于單片機(jī)的心率檢測(cè)系統(tǒng)設(shè)計(jì)畢業(yè)論文(已修改)
2025-03-20 06:38 本頁(yè)面
【正文】 1 I 基于單片機(jī)的心率監(jiān)測(cè)系統(tǒng)設(shè)計(jì) 摘要 隨著社會(huì)的發(fā)展，心率監(jiān)測(cè)系統(tǒng)已經(jīng) 得到 廣泛的應(yīng) 用 ，但醫(yī)學(xué)心率監(jiān)測(cè)系統(tǒng)還存在著 單一地點(diǎn)、實(shí)時(shí)性不精確等缺點(diǎn) 。 本設(shè)計(jì)就是為了克服傳統(tǒng)心率監(jiān)測(cè)系統(tǒng)的局限性，突出價(jià)格低廉、使用簡(jiǎn)單方便、維護(hù)成本低的特點(diǎn)。 所設(shè)計(jì) 心率監(jiān)測(cè)系統(tǒng) 采 用光學(xué)感應(yīng)原理做成的傳感器，把心率信號(hào)轉(zhuǎn)換為可測(cè)量的電信號(hào)模擬量。在 CPU的選型上，使用價(jià)格低、功能強(qiáng)大的 AT89S52單片機(jī)。利用中斷和定時(shí)器功能，能夠精確的計(jì)算出心率。在做出硬件和完整的軟件算法后， 進(jìn)行了 多次測(cè)試，測(cè)試結(jié)果表明，本設(shè)計(jì)能夠達(dá)到預(yù)期的效果。 關(guān)鍵詞： 心率監(jiān)測(cè)系統(tǒng)； AT89S52 單片機(jī)；光電傳感器 II Design of the heartrate monitoring system based on single chip microputer Abstract With the development of society, The heartrate monitoring system has been widely used, but the heartrate monitoring system has a single location, realtime imprecise and other shortings. To overe these limitations of conventional heartrate monitoring system, highlight the characteristics of inexpensive, easy to use, low maintenance costs, this heartrate monitoring system made use of an optical sensor, the heartrate signal was directly converted into the analog electrical signals. Using interrupt and timer functions, this heartrate was calculated accurately. After making a plete hardware and software algorithms, several tests were achieved. The test results show this design could obtain the desired effect. Keywords： Heartrate monitoring system。 AT89S52。 photoelectric sensor III 目 錄 摘 要 .............................................................................................................................I Abstract ......................................................................................................................... II 第 1 章 概述 .................................................................................................................. 1 選題的背景和意義 .......................................................................................... 1 心率監(jiān)測(cè)系統(tǒng)的 設(shè)計(jì)設(shè)想 .............................................................................. 1 心率監(jiān)測(cè)系統(tǒng)方案的選擇 .............................................................................. 2 第 2 章 心率監(jiān)測(cè)系統(tǒng)系統(tǒng)結(jié)構(gòu) .................................................................................. 3 光電心率監(jiān)測(cè)系統(tǒng)的結(jié)構(gòu) .............................................................................. 3 工作原理 .......................................................................................................... 3 光電心率監(jiān)測(cè)系統(tǒng)的優(yōu)點(diǎn) .............................................................................. 4 光電心率監(jiān)測(cè)系統(tǒng)的適用范 圍 ...................................................................... 4 第 3 章 硬件系統(tǒng) .......................................................................................................... 6 控制器 .............................................................................................................. 6 AT89S52 簡(jiǎn)介 ........................................................................................ 6 AT89S52 的結(jié)構(gòu) .................................................................................... 6 信號(hào)采集 .......................................................................................................... 7 光電傳感器的原理 ................................................................................. 7 光電傳感器的結(jié)構(gòu) ................................................................................. 8 信號(hào)采集電路 ......................................................................................... 8 信號(hào)放大 .......................................................................................................... 9 波形整形電路 ................................................................................................ 11 單片機(jī)處理電路 ............................................................................................ 12 顯示電路 ........................................................................................................ 13 1602 字 符型 LCD 簡(jiǎn)介 ........................................................................ 13 1602LCD 的指令說(shuō)明及時(shí)序 .............................................................. 13 1602LCD 的 RAM 地址映射及標(biāo)準(zhǔn)字庫(kù)表 ....................................... 14 電源模塊電路原理圖 ........................................................................... 14 第 4 章 軟件系統(tǒng) ........................................................................................................ 15 主程序流程： ................................................................................................ 15 中斷程序流程 ................................................................................................ 16 顯示程序流程： ............................................................................................ 16 軟件說(shuō)明 .....
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