关键词: 物联网, 定位, ZigBee, 信号强度, 优化算法

Abstract: The Internet of Things is a tightly coupled system composed of embedded computer and physical device, which is widely applied in many fields, such as, intelligent transportation, medical and smart mine. However, how to effectively design the personnel location algorithm based on ZigBee technology has become a challenging research topic. This paper proposes a method for personnel locating based on the ZigBee technology in one-dimension case by analyzing the advantages and disadvantages of the existing technologies, then optimizes it by using the filters and navigation algorithm. The algorithm can improve the location precision and realistic of moving trace, thus ensuring to meet the actual requirement. It demonstrates the algorithm and verifies its feasibility by an actual case.

Key words: Internet of Things（IOT）, location, ZigBee, Received Signal Strength Indicator（RSSI）, optimization algorithm