摘要
车辆定位是智能交通系统的核心部分,现有车载导航大多采用GPS与DR航位推算系统组合的方式。针对GPS/DR车载导航系统在高楼、遂道等GPS被遮挡情况下存在定位盲区的问题,该文利用蓝牙路标信息,在导航盲区安装蓝牙路标传感器,对GPS/DR定位结果进行修正。该课题中重点研究了蓝牙路标传感器定位误差修正方法,并分析了路标定位误差模型。研究结果表明:当车速<70 km/h,通过路标定位修正位置精度可以达到10 m;当车速>70 km/h,且<170 km/h,位置修正精度可以达到20 m以内。
The vehicle location is the core part of intelligent transportation system, most of the existing vehicle navigation use GPS and Dead Reckoning（DR） navigation system. To solve the GPS/DR system problems of positioning blind area problem in high-rise buildings or tunnels,this paper uses bluetooth information, and installs bluetooth signposts sensor in navigation blind area,to correct the GPS/DR positioning results.This topic mainly studies the positioning error correction methods of bluetooth signposts sensor, and analyzes the signpost positioning error model.The results show that when the speed is less than 70 km/h, fixed position accuracy using bluetooth signposts can reach 10 meters;when the speed is more than 70km/h, and less than 170km/h, position correction precision can reach within 20 meters.
出处
《科技创新导报》
2015年第26期26-27,30,共3页
Science and Technology Innovation Herald
关键词
车载导航
蓝牙路标
航位推算
位置修正
Vehicle navigation
Bluetooth signposts
Dead reckoning
Position correction
