Multi-precision Indoor Location System Based on Ultrasonic and ZigBee

摘要

Propose a multi-precision indoor location system which is constituted by a new receiver network. The system integrates advantages of ZigBee and Ultrasonic location system, using TOA and RSSI algorithm to complete the location. There are multi-precision, low-cost, low-power, flexible installation and maintenance features. Experimental results show that the location precision of the location system can be changed by arranging the receiver network flexible.