基于多源信息融合的车辆定位系统设计

车辆定位是智能交通系统中实现车际信息交互的关键支撑技术.针对现有通用车辆定位算法存在的定位漂移、精度不足、实时性差、鲁棒性弱等特点,在分析全球定位系统(GPS)及ZigBee技术基础上,设计了一种使用GPS和ZigBee多源信息融合的车辆定位系统.通过ZigBee组建网络,以GPS与接收信号强度指示(RSSI)多源联合...

Design of Vehicle Positioning System Based on Multi-Source Information Fusion

Vehicle positioning is the key supporting technology for information interaction between vehicles inan intelligent transportation system.Aiming at the shortcomings of existing general vehicle location algorithms,such as location drift,insufficient accuracy,real-time performance and robustness,etc.,a vehicle positioning system using global positioning system(GPS)and ZigBee multi-source fusion information is designed based on the analysis of GPS and ZigBee.Through the ZigBee network,the target node is located in the form of multi-source joint positioning in fusion of GPS and received signal strength indieation(RSSI).The information collection of vehicle groups equipped with a positioning device is carried out.The hardware is selected and designed,and the positioning application program is developed to realize the precise positioning of the vehicle.The system provides a user interface,which effectively solves the accuracy problem of inter-vehicle positioning.The experiment results show that the maximum absolute error of measurement is 3~5 m,the correctness and feasibility of the system applied to vehicle positioning are verified,and it can meet the practical requirements.