【作者】 翁剑成； 荣建； 任福田；

【Author】 Weng Jiancheng, Rongjian, Ren Futian(Key Lab of Traffic Engineering, Beijing University of Technology, Beijing 100022)

【机构】 北京工业大学交通工程重点实验室；

【摘要】 交通信息的采集和实时发布是动态车载导航系统高效运作的重要保证。基于探测车的交通数据采集方法是对传统交通信息采集方法的有益补充,也具有投入低、数据精度高、实时性好的特点。本文依托现有的探测车采集实验系统,从区间速度的定义出发,针对实时上传的探测车数据,提出了以探测车的区间运行时间和路段长度为基础的区间速度处理算法和地图匹配失败情况下的数据处理方法。最后,通过对比跟车实验实测的区问速度和计算结果,验证了该算法的区间速度计算结果精度达到了90%以上,从而为探测车信息处理提供了简单、准确的区间速度计算方法。更多还原

【Abstract】 The collection and timely broadcasting of traffic information are the premises for Dynamic Vehicle Navigation System (DVNS) to operate effectively. The collection method based on Probe Vehicle (PV) which has the traits of low investment, high precision and timely processed will be favorable supplement of traditional methods. Relied on the PV experiment system, the paper starts with the definition of road section speed; then, based on the PV data, a section speed processing algorithm of road and data processing measures when map matching is failed was put forward. By means of comparing with the field experiment, the result shows that the average calculate accuracy of algorithm is over 90 percents, so the processing algorithm is capable of processing the traffic data based on the probe vehicle into road-section speed simply and accurately.更多还原