循環生理參數量測分析系統之建構與初步功能評估

Construction and elementary function estimate of circulation physiology parameter measurement analysis system

林文吉(Wen Chi Lin)

指導教授 ： 許昕

元智大學/電機通訊學院/電機工程學系/碩士(2008年)

https://doi.org/10.6838/YZU.2008.00111

摘要

循環生理的相關理論已經發展許多年，因此如何以科學的方法來測量並提供研究人員一個實驗的數據是相當重要的，本研究重點是建構出一套測量生理參數循環系統，並給與研究人員一些基礎的數據，使其在研究時可以透過此系統來發展或驗證循環理論的相關研究，透過偵測ECG訊號來截取R波以瞭解HRV心率變異的變化，並透過小波轉換的頻域分析來找出心率改變的時間點，在未來系統擴充上可透過不同心率來調整馬達轉速，以馬達來驅動水床以產生不同振波，來驗證穴道在不同頻率刺激下對人體有那些影響。
在系統構想上分為三個主電路與系統軟體部份，第一是類比電路主要用來偵測人體ECG信號，系統使用儀表放大器來放大ECG電壓訊號，並透過主動濾波器來將我們所要的頻率截取出來，第二是類比數位通信電路，在經過放大濾波的信號，我們需將訊號由類比轉為數位訊號至MCU經由RS232介面傳進電腦，軟體系統部份則使用Labview來做系統分析透過ECG來偵測心率，與HRV經小波轉換後之頻域圖形，最後經系統分析出心率之後，第三為D/A電路經D/A電路轉換驅動馬達，以產生不同轉數，系統驗證部份則實際量測人體並透過標準ECG波形來比對此系統是否準確量測心率且藉由加熱穴道的訊號來分析人體HRV上的變化。

關鍵字

循環理論 ； ECG ； HRV ； Labview

並列摘要

The physiological relevant theory of circulation has been developed for many years. Hence, it is very important measure with the scientific method and offers experimental data to researchers. The emphases of this research is to build one physiological parameter circulatory measurement system and to provide researchers some basic data so that they can develop or prove relevant research of the circulation theory through this system. For example, the R wave could be intercepted in order to understand the HRV change of the heart rate variation via detection of ECG signal, and the timing of heart rate change via frequency domain analyze of wavelet. Regarding system expansion in the future, the rotational speed of the motor could be adjusted through different heart rate and different shaking waves could be produced by motor driving water bed to prove the influences on the human body by stimulating the acupuncture point in different frequency.
There are three parts in system conception of the main circuit and system software. First, the analogy circuit is used for human ECG signal detection. The system uses the instrument amplifier to amplify ECG voltage signal and uses the filter to cut out the frequency we want, Second, the analogy and digital communication circuit. After filter and amplify signal, we need to transfer the signal from analogy to digital into the computer by RS232 interface of MCU. The software system uses Labview to analyze and detect the heart rate of ECG and HRV to produce domain graph by wavelet transform frequency. Finally the heart rate is analyzed with system. Third is D/A circuit. D/A circuit drives the motor to produce different rotational speed. Regarding the system proof, the human body shall be surveyed actually for the accurate measurement of heart rate against the system via standard ECG wave and variation of HRV in the human body analyzed by the signal of heating acupuncture point.

並列關鍵字

Circulation theory ； ECG ； HRV ； Labview

參考文獻

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