摘要
超宽带(UWB)技术因其定位精度高、通信速率高、多径分别率强等优点,广泛应用于各类定位系统中。设计一种基于UWB定位技术的隧道智能交通系统,该系统包含车辆定位系统和智能交通系统。其中车辆定位系统是采用基于TOF的UWB对称双边双向测距原理提高精度,对车辆进行定位。隧道智能交通系统根据隧道车辆定位信息和红绿灯控制算法,控制隧道内交通运输。测试试验表明该基于UWB定位技术的隧道智能交通系统通讯稳定、收发数据时间短,满足现实使用需求,对提高隧道交通运输效率有重要意义。
UWB has been used in all kinds of positioning systems because of its high positioning accuracy,high communication rate and strong multipath separation rate.A tunnel intelligent transportation system based on UWB positioning technology is designed,which includes vehicle positioning system and intelligent transportation system.The vehicle positioning system adopts the principle of symmetrical bilateral two-way ranging to improve the accuracy and uses TOF to calculate its position,which base on UWB positioning technology.The tunnel intelligent transportation system controls the traffic in the tunnel according to the vehicle positioning information and traffic light control algorithm.The test results show that the communication of the tunnel intelligent transportation system based on UWB positioning is stable.The time of sending and receiving data is short,which is able to fulfil our requirements.The system is of great significance to improve the efficiency of tunnel transportation.
出处
《工业控制计算机》
2021年第3期105-107,共3页
Industrial Control Computer
关键词
UWB
车辆定位
TOF
对称双边双向测距
智能交通系统
隧道
UWB
vehicle positioning
TOF
Symmertric Double-Sided Two-Way Ranging
intelligent transportation system
tunnel
