心肺偵測、無線定位與無線數據之整合射頻系統

An Integrated System of Cardiopulmonary Detection, Wireless Positioning and Wireless Data Transmission

何杰霖(Ho, Chiehlin)

指導教授 ： 張盛富

國立中正大學/工學院/電機工程學系/碩士(2012年)

摘要

本論文結合都卜勒雷達、相列天線和無線網路通訊技術，研發一套「急難E護系統」，此「急難E護系統」具備三項功能：非侵入配戴式心肺檢測雷達、室內定位和戶外行蹤追蹤。此系統含有隨身E護卡、現場定位接收機以及行動裝置系統(智慧型手機)。隨身E護卡在硬體方面包含(1)都卜勒雷達感應器、(2)微控制處理器與、(3)無線網路傳輸模組，其尺寸如名片般大小，配掛於胸前，使用者無須植入生醫晶片或穿戴接觸型晶片，其心跳和呼吸等生理訊號可以在無感覺狀態下持續被檢測。現場定位接收機使用圓極化天線陣列接收隨身E護卡本身所發射的訊號，達到現場定位之功能。隨身E護卡上的無線傳輸機亦可將生理訊號，傳輸至行動裝置上，透過行動裝置將其生理訊號與定位座標傳送至後端控制中心，達到即時健康狀況和動態位置的監測。
為了確定其定位效果，我們在一空曠環境(6.45×6.75 m^2)進行一維方位角量測，方均根誤差為〖2.42〗^°。二維定位量測，方均根誤差為22cm。另外，為了驗證心肺檢測結合定位系統的功能性，我們在一間模擬居家環境空間中(6×10 m^2)，將其隨身E護卡配戴於人體胸口，定點進行心肺量測且進行二維定位系統量測，實驗結果顯示在40個量測點中，最大定位誤差為63.1cm、最小定位誤差為1.0cm，其方均根定位誤差為35.2cm，定位更新速度為20次/秒，可以同時偵測40人。

關鍵字

急難E護系統 ； 配戴式心肺檢測雷達 ； 室內定位 ； E護卡 ； 無線資料傳輸

並列摘要

An emergency E-Nurse system based on of Doppler radar, phased array antenna and wireless LAN techniques was developed in this thsis. The Emergency E-Nurse system provides three functions: noninvasive vital-sign detection, wirless indoor positioning, and outdoor global positioning. The system is composed of three modules: wearable E-Nurse card, positioning reader, and handheld mobile device. The wearable E-Nurse card, containing of the vital Doppler radar sensor, embedded microprocessor and wireless LAN, perform the noninvasive heartbeat and breath rate measurement. The transmitted signal from E-nurse card received for indoor positioning by the positioning reader. The E-nurse card is also linked to the handheld mobile device for outdoor positioning through the GPS function.
The two-dimensional indoor positioning was tested in two environments with different levels of multipath distortion, including unfurnitured (6.45m x 6.75m) and a furnitured household ( ) room, respectively. The root-mean-square error is 22cm in the unfurnitured room and is 35.2cm in the furnitured room. The updated rate is 20 times and 40 people can be tracked at the same time.

並列關鍵字

Vital-sign Detection ； Wireless Positioning ； Wireless Global Positioning ； Wireless Data Transmission ； E-Nurse Card

參考文獻

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