| Summary: | 碩士 === 世新大學 === 資訊管理學研究所(含碩專班) === 99 === Today, GPS is the most popular and wildly used outdoor positioning technology. Since indoor environment are limited in size to rooms and buildings, there is a higher demand for relative accuracy indoors. Even with high sensitivity GPS receiver, accuracies are typically of the order of tens to hundreds of meters at best. As a result, a new strain of indoor positioning technologies that make use of wireless networks is emerging.
In this thesis, a wireless indoor positioning system is developed with the ZigBee technology. Using Texas Instrument's CC2430 and CC2431 system-on-chip modules for 2.4 GHz IEEE 802.15.4 and ZigBee, we developed an indoor positioning system.
Our system firstly uses conventional techniques for predicting mobile objects location by combining estimates drawn from received signal strength (RSS) using ZigBee modules. Then we propose a path-assisted positioning mechanism to enhance the accuracy. Our system is easy to deploy and the experiments show that it yields good positioning accuracy.
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