有鑑於最近有關情境感知、位置感知的研究領域逐漸受到重視，許多產品也開始加入定位的功能，本篇論文著重在如何建構一套低成本的室內定位系統，希望可應用於博物館導覽、居家照顧等;整個系統主要使用廣登電子所支援的QRZ2400 ZigBee模組來實現室內定位系統，連接以ARM920T S3C2443為核心的嵌入式開發平台做為主要控制端與使用者介面端，而在室內定位布局方面採用三組ZigBee模組節點作為定位的參考端，並以ZigBee模組的RSSI數值作為定位演算依據，本研究採用傳統與幾何概念的定位法來加以實現並顯示目前位置在螢幕上，好讓控制端可以知道自己本身的位置。

Context-Aware and Location-Aware received much attention in recent year, more and more products also have added the feature of positioning. This thesis emphasizes that how to development a low-cost indoor positioning system that can apply it in Museum Guide, Home Health-Care, etc. It uses QRZ2400 ZigBee Module supported by QuadRep Electronic to implement. The ZigBee Module can connect to the Embedded System that uses ARM920T S3C2443 CPU core as control-end and User-Interface function. In the indoor positioning environment, we use three End-nodes of ZigBee Modules as reference nodes for the purpose of positioning and we can take the RSSI value as a valid source for positioning algorithms. In the thesis, we use the traditional and geometric algorithms to implement and show the “Current Position” on the touch screen for control-end.

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