臺灣博碩士論文加值系統

可攜式的醫療裝置在近年來吸引許多人的注意，隨著無線通訊技術日益的發展與成熟，無線可攜式的醫療儀器勢必成為廣泛的應用項目。在本研究中，以藍芽技術實現了三個通道的無線心電圖機設計。一般來說，多通道的心電圖量測系統除了有較大的體積之外，價格上面亦高了許多。為了克服體積與價格上的問題，採用了加入類比多工器的設計，再加上藍芽技術將資料以無線傳輸的方式從量測單元傳送到PC接收端。在這樣的架構之下，受測者可以帶著身上的可攜式量測單元，而不用再受到傳輸線的限制，並且可以在10公尺的範圍內自由行動。本研究中所提出的無線可攜式心電圖機，對於專業醫師或是研究人員來說，會有很大的幫助，可以根據此系統觀察受測者於自由行動或是靜止時的心臟活動狀況。

The portable medical device has attracted much interest in recent years. With the development of wireless technology, the wireless portable medical instruments will be applied extensively. We have implemented the three-channel ECG measurement unit via Bluetooth technique in this study. It has been known that multi-channel ECG measurement instruments got the big sizes and high prices in general. In order to decrease the size, we put the analog multiplexer in front of the input stage to get the three-channel ECG signals. The signals, transferred by analog-to-digital converter, would be transmitted using Bluetooth module to the remote computer. There is no cable connected between the portable ECG instrument and the computer, and the subject can move freely in 10-meter radius. The wireless portable ECG measurement instrument presented in this study would be helpful to the specialist and the subject. It can be used to measure the ECG under rest or free-moving without cables.

誌謝 i
中文摘要 ii
Abstract iii
目錄 iv
圖目錄 vi
表目錄 ix
第一章 緒論 1
1.1研究背景 1
1.2研究動機及目的 3
1.3國內外相關研究 4
第二章 理論背景 5
2.1 心電圖 5
2.1.1 生理電訊號 5
2.1.2 心電圖 5
2.2 無線藍芽技術 9
2.2.1 藍芽(Bluetooth)概論 9
2.2.2 技術規格與標準演進 10
2.2.3 藍芽系統架構 13
第三章 研究方法 18
3.1 系統概述 18
3.1.1 心電訊號電氣特性 18
3.1.2 類比多工器 (Analog multiplexer) 19
3.1.3 前置放大器(Pre-amplifier) 20
3.1.4 驅動右腳電路 (Driven-right leg circuit) 21
3.1.5 高通濾波器 (High-pass filter) 23
3.1.6 低通濾波器 (Low-pass filter) 25
3.1.7 輸出級放大器 (Output stage amplifier) 27
3.1.8 微控制器單元 (Microcontroller unit) 28
3.1.9 藍芽模組 (Bluetooth module) 33
3.1.10 程式單元 (Package software) 34
3.2 電極位置 34
3.3 心電信號的雜訊干擾 37
3.3.1 電極與皮膚電位關係 37
3.3.2 外在量測環境的干擾 39
第四章 實驗結果 42
4.1 類比電路驗證 42
4.2 數位電路驗證 44
4.3 系統量測結果 46
第五章 討論與結論 51
5.1 討論 51
5.2 結論 52
參考文獻 53

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