無線感測網路應用於醫院建築環境之監測

Wireless Sensor Networks for Monitoring Indoor Environment: An Application to Hospital Buildings

林子軒(Tzu-Hsuan Lin) ； 洪士林(Shih-Lin Hung) ； 吳仁彰(Ren-Jang Wu) ； 黃裕清(Yu-Ching Huang) ； 陸翔寧(Hsiang-Ning Liu) ； 柴梅熙(Murthy Chavali)

《科儀新知》 154期 (2006/10) Pp. 86-94

https://doi.org/10.29662/IT.200610.0010

摘要

相對於傳統感測器，無線感測網路具有低耗電、低成本、可自我調適、無線傳輸及微小化等優點，因此利用無線感測網路所發展之監測系統具有相當大的優勢。本研究的目的為發展無線感測系統來監測醫院建築內部的環境，尤其以外科手術室環境的麻醉氣體為主。此系統結合了導電性高分子氣體感測器與無線傳輸系統來監測麻醉氣體。本文將介紹筆者研究團隊所發展之無線氣體感測系統，包含系統架構、硬體設計與感測器整合，並進行相關實驗以驗證本系統之可行性與效能，最後並針對實驗結果作討論。本研究所發展的無線感測系統於架設與實際測試時不僅相當有效率，且具有高度的機動性。實際測試時也可有效的量測到感測器電壓的變化值，可證明本系統之可行性。同時該研究所發展的系統除了可以接上自行製備之導電性高分子感測器外，也可以外接各種不同的商用感測器，包含溼度、溫度及一氣化碳等感測器，具備快速安裝與可調性之特性，相信在實際應用上將會有很大的幫助。

並列摘要

The total design and development of wireless gas sensor system using in situ UV photopolymerized conducting polypyrrole, as a sensing material was investigated for measuring volatile organic compounds like most common inhalation anesthetic agent, fluoromethyl 2,2,2,-trifluoro-1-(trifluoromethyl) ethyl ether, sevoflurane. This sensor shows promising application towards hospital surgical indoor environments especially in postoperative recovery phase. The conducting polypyrrole films were dip coated over a pair of interdigitated comb shaped gold electrodes that were previously screen printed on an alumina substrate, subsequently integrated with the system electronics. Results shown the response of the sensor is rapid with multifold change in resistance and was very stable. The response time T90 (T90 represents the time to 90% signal with the equilibrium signal) of 5.77% sevoflurane sensing curve is less than 60 second, and recovery time was also less than 60 second. The response to different vapors was also investigated, with vapors from alcohol and acetone.