自行車玩家生醫資訊守護神

The Medicine Information Guardian for Bicycler

黃仲麟(Zhoung-Lin Huang)

指導教授 ： 黃文增

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2009年)

摘要

本研究將自行車玩家身上之生理訊號粹取並透過藍芽無線傳輸至PDA手機上進行監控。粹取的生理訊號有：
(1) ECG：本研究應用可導電織品當作ECG電極，有別於傳統生理電極。可導電織品能避免傳統電極因化學物質導致皮膚病變而無法長期使用的缺點，且能夠減少傳統電極使用的不舒適感，本研究實作不同的環境參數比較標準電級與可導電織品電極，並證明其可在某些條件下可以替代傳統電極。
(2) 體溫：使用NTC感應體溫，並利用平均濾波器對因壓力不同導致溫度感應變化之缺點進行改善，同時監測運動中體溫是否因排汗功能失調而導致升高。
(3) 汗溼：使用可導電織品與吸水布進行相對汗濕度的感測，並監測運動時排汗功能正常與否。
(4) 跌倒偵測：使用三軸加速規進行跌倒與跌倒方向偵測。
另外為了減少ECG受到雜訊影響，在MSP430中利用FIR(Finite Impulse Response)對心電訊號濾波，並利用演算法將FIR在MSP430內做有效的資源節省。最後透過藍芽傳輸將在玩家的生醫訊號：心跳、溫度、溼度及跌倒偵測作在手機上做監控與提出警示訊息，並引用文獻上的能量消耗公式對感測到之心跳轉換成熱量的消耗，則玩家即能夠知道運動時間和其熱量消耗的多寡。

關鍵字

心電圖 ； 織品 ； 可穿戴 ； 體溫 ； 汗濕度 ； 跌倒偵測

並列摘要

In this study, we will retrieve the physiological signals of bicycler and transmit them to PDA via Bluetooth wireless transmission to precede monitor. The retrieved physiological signals include follows:

(1) Electrocardiogram (ECG): the electric fabric is used as the ECG sensors, to substitute for traditional ECG leads. This electric fabric can avoid the disadvantages of the traditional ECG leads which can cause pathological changes of skin according long term use. Moreover, it can reduce the uncomfortable feel when use the traditional one. Various environment parameters will be implemented and then compared between the standard electrode and electric fabric electrode. Finally, we want to prove that the electric fabric can substitute for traditional electrode under some conditions.
(2) Body temperature: NTC is used our body temperature sensor. The average filter is employed to improve the disadvantage which will cause of different pressures leading to temperature variation. Meanwhile, our system can monitor user’s body temperature in exercise under abnormal cases because the sweating function is imbalance.
(3) Sweat humidity: the electric fabric and sucking cloth are used as the relative sweat humidity sensor. Also, our system can monitor users if one’s sweating function is abnormal.
(4) Fall detection: 3D accelerator will be employed here to proceed the fall detection or not and the fall direction.
For reducing the noise affection of ECG signal, we use the FIR filter algorithm to filter weaves aimed at ECG signal within the microprocessor. And, our utilized algorithm can save resources in MSP430. At last, we use PDA with the Bluetooth function for transmitting the physiological signals of bicycler and then produce alarm message under the abnormal conditions. Meanwhile, the well-known algorithm is used and shown in bibliography to transform user’s measured heart rate from sensor into calorific capacity consumption such that the player can know how many calorific capacity to be consumed during the exercise.

並列關鍵字

Electrocardiogram, Fabric electrode, Wearable ； Body temperature ； Sweat humidity ； Fall detection

參考文獻

[19] K. Bourke, J. Karol, J. Nelson, and M.

[6] S. Park and Jayaraman, “Enhancing the quality of life through wearable technology,”IEEE on Engineering in Medicine and Biology, Vol. 22, Issue 3, May 2003, pp.41-48.

[8] J. Muhlsteff and O. Such, “Dry electrodes for monitoring of vital signs in functional textiles,” IEEE Conference on IEMBS '04. 26th Annual International, Vol. 1, Sept. 2004, pp.2212-2215.

[9] Dozio, R. Baba, A. Assambo, and C. Burke, “Time Based Measurement of the Impedance of the Skin-Electrode Interface for Dry Electrode ECG Recording,” IEEE Conference on EMBS Annual International, Vol. 6, Aug. 2007, pp.5001-5004.

[11] E. Pasquale Scilingo, A. Gemignani, R. Paradiso, N. Taccini, B. Ghelarducci, and D. De Rossi, “Performance Evaluation of Sensing Fabrics for Monitoring Physiological and Biomechanical Variables,” IEEE Transactions on information