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系統識別號 U0026-2807201014373400
論文名稱(中文) 應用於放鬆評估之嵌入式生醫分析系統設計
論文名稱(英文) Design of an Embedded Biomedical Analysis System for Evaluating Body Relaxation State
校院名稱 成功大學
系所名稱(中) 電機工程學系碩博士班
系所名稱(英) Department of Electrical Engineering
學年度 98
學期 2
出版年 99
研究生(中文) 魏英宇
研究生(英文) Ying-Yu Wei
學號 n2697498
學位類別 碩士
語文別 中文
論文頁數 76頁
口試委員 指導教授-楊明興
口試委員-廖斌毅
口試委員-黃克穠
中文關鍵字 心電圖  心率變異度  放鬆  音樂治療  自律神經系統 
英文關鍵字 electrocardiogram  heart rate viriabilit (HRV)  relaxation  music therapy  automatic nervous system 
學科別分類
中文摘要 當我們內心壓力過大時,若沒有及時有效地紓解壓力,持續累積下來,將對於身體特定器官系統或機能造成危害。為了立即了解個人的生理狀態,以避免壓力累積造成傷害,本研究主要是建立一套可用以了解生理參數與放鬆指標的系統。
本研究設計一套自行建構的即時HRV分析系統,包括:心電圖量測模組、QRS偵測模組和HRV分析模組等三部份。心電圖量測模組用於量測心電圖;QRS偵測模組用於進行類比數位轉換及即時R波偵測;HRV分析模組則用於將接收到心電圖資訊以及每5分鐘計算出的HRV頻譜和參數,儲存於SD卡,並且顯示於LCD上,亦可透過藍芽模組,將資料傳送到電腦上進行進一步的分析,以立即了解個人的相關生理狀況。
本研究中利用所建構的系統進行音樂放鬆的實驗,實驗分成對照組和三個實驗組,對照組為不聆聽音樂,實驗組1為聆聽薩替的第一號金諾佩第曲,實驗組2則聆聽貝多芬的「悲愴」第二樂章,而實驗組3則聆聽海莉薇思特娜唱的奇異恩典,然後比較這些實驗的生理參數變化,觀察放鬆與生理參數的關係。
實驗結果顯示,在三個實驗組,聆聽音樂有效增加平均心跳間隔,且有效增強心率變異度(HRV)的高頻(HF)與高頻比(HFn);在實驗組2和實驗組3中,則LF和LF/HF則明顯地降低。這些參數的變化則可能為人體放生鬆時的指標。
英文摘要 When we are situated at high mental stress for a long time, the organ systems of our bodys may be damaged and their related functions will be out of order. To understand the physiological state of the body is very important for us to avoid the harm from mental stress. The aim of this research is to establish an evaluation system for mental relaxation states by analyzing the related physiological signals of the participants.
In this study, a real-time heart rate variability (HRV) analysis system is designed. The system includes three modules. One is electrocardiogram (ECG) circuit, which collects the ECG waveforms from the surface of body. The other is QRS detector module. It provides a real-time R peak detector and A/D converter interface. Another is HRV analysis module. It can store not only the ECG data, but also HRV spectrum and parameters for analyzing each of 5-min RR-interval data in SD card. It also can display the information on LCD and transmit them by Bluetooth interface to PC for monitoring.
In this study, we also adopted music stimulations for assessing body relaxation. We divide the participants into control group and three experimental groups. The control group is experimented under a no-music condition. The first experimental group listened Gymnopédie NO.1 of Satie, while the second experimental group is stimulated by piano Sonata NO.8 ‘Pathetique’ of Beethoven during the experiments. The third experimental group listened the Amazing grace by Hayley Westenra during the experiment.
The results show that mean RR component of HRV is significantly increased in all of three experimental groups. The high frequncey (HF) and HF norm conponents are also significantly increased in these three conponents. The low frequency (LF) and LF/LF are significantly decreased in classic-music 2 and Amazing-grace groups. These findings imply that the body in relaxation state is associated with the increases of the mean RR and HF components and the decreases of the LF and LF/HF cononents of HRV.
論文目次 摘要 I
Abstract III
致謝 V
目錄 VI
表目錄 IX
圖目錄 X
第一章 緒論1
1-1 研究動機與目的 1
1-2 音樂放鬆文獻 2
1-3 論文架構 4
第二章 系統設計 5
2-1穩壓電路 6
2-2 心電圖量測模組 7
2-2-1儀表放大器 7
2-2-2低通濾波器 8
2-2-3 高通濾波器 10
2-3 C8051F413簡介與特性 12
2-3-1 12位元A/D轉換器 13
2-4 PHILIPS LPC2378簡介與特性 14
2-4-1 LPC2378 SD/MMC介面 15
2-4-2 TFT LCD 彩色液晶顯示器 16
2-5 藍芽無線模組 17
第三章 系統測試 19
3-1 心電圖量測電路模組測試 21
3-2 QRS波偵測演算法測試 21
3-2-1 QRS波偵測步驟 21
3-2-2 QRS波精確度驗證 25
3-3 LPC2378 LCD顯示與SD卡資料儲存驗證 25
3-3-1 LCD顯示 25
3-3-2 SD卡資料儲存 27
3-4 HRV時域和頻域參數驗證 29
3-4-1 HRV時域參數驗證 29
3-4-2 HRV頻域參數驗證 30
3-5 PC端HRV分析平台 32
第四章 實驗程序與結果 40
4-1實驗參與者 40
4-2 實驗環境 40
4-3實驗設計與流程 41
4-4 實驗結果與分析 45
4-4-1受測者量測結果顯示 45
4-4-2 實驗結果分析比較 50
4-4-3 HRV參數統計分析 56
第五章 討論 60
5-1實驗結果討論 60
5-2音樂選擇討論 61
5-3系統設計討論 62
第六章 結論與未來發展 63
6-1 結論 63
6-2 未來發展 63
參考文獻 64
附錄A 心電圖訊號量測原理與分析方法 66
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