摘要
交通数据采集是建设智能交通系统的首要环节,如何通过较为经济的方式及时获得质量可靠的交通数据是当前国内外交通数据采集面临的重大问题。首先介绍了手机定位技术应用于交通数据采集的发展背景和需求,同时介绍了TDOA,A-GPS,CELLIDwithTA,Handover等常用定位技术,并对其定位精度进行对比。分析了基于手机定位技术的交通数据采集技术的关键问题,总结了近年国外高校、交通研究机构的主要研究成果和项目经验,最后提出进一步需要解决的问题。
Traffic data collection is the construction of the ITS system and how to gain the traffic data with reliable quality by an economical way is an important issue. This paper firstly introduces the background and demand of the mobile phone location based traffic data collection, then several mobile phone location technologies are introduced and their location accuracy is compared. Some key issues about the mobile phone based traffic data collection are analyzed. the program experience and research results by the foreign transportation agency and universities are reviewed. At last, several problems which need further study are put forward.
出处
《城市交通》
2005年第4期63-68,共6页
Urban Transport of China
关键词
手机定位
交通数据采集
辅助GPS
切换
定位精度
mobile phone location
traffic data collection
A-GPS
handover
location accuracy
