The Research And Application Of WSN On Vehicle Location

Intelligent Transportation System(ITS) will go gradually into people's lives. It is important to study the vehicle positioning program. The Zigbee as one of the mature WSN techniques turns into the first choice to construct the ITS network.In this paper,the location information of Zigbee base station is known and a vehicle location algorithm based on automatic model switching is put forward, which is based on TOA ranging, least squares algorithm and Kalman filter. The stability of the algorithm is proved, the precision analysis of the algorithm and the system-level Matlab simulation are provided. Theoretical proof and simulation results show that: the algorithm is stable and reliable, high precision and practical. And the foundation about the future project implementation and in-depth study is to some degree founded.At last, the next-step work about the vehicle location algorithm is discussed.