Research and Design of ZigBee-based Indoor Positioning System

The positioning system consists of three parts, namely the hardware platform, the node communications and PC monitoring software program. Hardware platform mainly CC2530 chip as the core, including RF modules, auxiliary circuits, LED status indication circuit and so on. Node communication program is mainly based on the selection procedure for the preparation of localization algorithm, the process of selecting a location positioning algorithm based on acceptable signal strength indicator RSSI (Received Signal Strength Indication) in. PC monitoring software is written in Visual Basi6.0 environment, the main visualization graphics. According to the actual test, the more open the roof, the system can achieve accuracy error of less than 1m; in the classroom, and the system can achieve accuracy error of less than 2m. The wireless location system with low cost, low power consumption, high reliability notable features.