數位式氣喘尖峰氣流量監測系統設計

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姓名

蘇志偉(Jr-Wei Su) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

數位式氣喘尖峰氣流量監測系統設計
(Design of Asthma Peak Flow monitor System)

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摘要(中)

最近研究指出，氣喘病情不能有效控制，其中重要因素之ㄧ為病人不能與醫生實際配合控制。此乃因為傳統氣喘的監控方式是利用紙本紀錄好尖峰吐氣流量資料，並將資料交給醫生，再由醫生來做診斷。由於氣喘是屬於慢性疾病，因此需要長期的監控才能控制好病情。可是病人常在病情好轉之後便沒有照醫生指示去控制氣喘，而導致治療效果受到影響甚至死亡。因此本研究的目的是要建立一套數位式氣喘尖峰氣流量監測系統，藉由個人數位助理 (PDA) 及網路傳輸，能讓氣喘病人與醫生透過這樣的監測方式來改善其氣喘症狀。
此系統是以Windows CE 為作業系統之PDA為主體，使用由ADInstruments公司(Sydney,Australia)所設計的呼吸流量器將氣喘病人吐氣之尖峰值轉為類比電壓，而此類比訊號透過單晶片處理器轉換成數位訊號，再藉由串列埠傳輸至PDA。氣喘病人可將其尖峰吐氣資料存放在設計好的PDA資料庫內，同時也可利用PDA接上電腦做同步資料傳輸或透過無線網路方式，將PDA內部的資料與遠端醫生之電腦同步更新。醫生也可藉由本研究所開發之軟體介面，發送簡訊給病患。在此模式下，病人與醫生不僅不會受到時間與距離的限制，而且可以達到氣喘病人病情之監測與改善的目的。

摘要(英)

Recent study indicates that one of the important reasons that asthmatic condition could not be effectively controlled is that patients could not comply with the prescription of physician. One possible reason for this is that the conventional approach for physician to monitor the symptoms of asthmatic patients is based on the daily peak expiratory flow records of the patient. Because of the chronic essence of asthma, a long-term patient monitoring would be the necessary step to control the asthmatic condition. However, the asthmatic patients often stop following the prescription of physician once their symptoms of asthma were largely improved. This often leads to deterioration of treatment efficacy or even the patient’s death. The main purpose of this study is to design an asthmatic peak expiratory flow monitor that is based on a personal digital assistant (PDA) and internet communication to. Such a system would improve not only the communication between the asthmatic patients and
physician but also the symptom of asthmatic patients.
The device developed in this study is based on a Windows CE-based PDA. The peak expiratory flow (PEF) of asthmatic patient are converted into analog signals via a pneumotachometer (ADInstruments Inc., Sydney, Australia). These analog signals are digitized by a microcontroller and transfered to PDA by a serial interface (RS-232). The PEF data of asthmatic patients can be stored in the database of PDA or synchronized with the computer in the office of physician to update the data through the internet or wireless local area network (LAN). The physician can also use a software program developed from this study to send short message to patients. Therefore, communication between the patients and physician not only will not be limited by time and distance, but also can achieve the
goal of monitoring and improvement of patients’ symptoms.

關鍵字(中)

★ 氣喘
★ 尖峰氣流吹氣値
★ 呼吸量計

關鍵字(英)

★ asthma
★ peak expiratory flow rates
★ spirometer

論文目次

目錄
中文摘要
Abstract
目錄 I
圖目錄 IV
表目錄 VII
第一章緒論 1
1.1 前言 1
1.2 相關研究及文獻回顧 3
1.3 研究目的與動機 4
1.4 論文架構 6
第二章研究背景與基本原理 7
2.1 氣喘的簡介 7
2.2 氣喘的診斷 9
2.3 依據尖峰流速値對病人的病情控制 13
第三章軟硬體設計 14
3.1 系統架構 14
3.2 硬體設備 15
3.2.1 呼吸流量器 15
3.2.2 呼吸流量計偏壓電路 16
3.2.3 呼吸流量計放大電路 19
3.2.4 單晶片電路 21
3.2.4.1 類比/數位轉換 22
3.2.4.2 RS232 通訊埠傳輸 24
3.3 軟體設計 29
3.3.1 個人數位助理(Personal Digital Assistant, PDA) 29
3.3.1.1 Windows CE 簡介 29
3.3.1.2 PDA之介面開發 30
3.3.1.3 PDA內部資料庫 - SQL CE 33
3.3.2 遠端伺服器資料庫 – SQL Server 2000 34
第四章結果與討論 38
4.1 單晶片數位轉類比結果驗證 38
4.2 Spirometer 量測電壓 39
4.3 電壓與氣流速之轉換 40
4.4 PDA之信號接收測試 43
第五章結論與未來展望 48
參考文獻 51

參考文獻

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指導教授

吳炤民(Chao-Min Wu)

審核日期

2007-1-26

推文