摘要： 交通诱导系统将经过处理的交通状态数据发布在公共平台上,供人们作为选择路径的参考。在一定时间内用户接收过多的信息,不仅影响到所需信息的辨别率,而且分散驾驶员的注意力,从而产生安全隐患。针对该问题,采用交通路网动态规划方法,提出一种基于位置服务的动态虚拟交通诱导系统,利用用户所处环境数据以及地图匹配算法提高用户定位精度;通过交通路网动态规划,过滤多余的道路交通状态信息,精简发布信息量;运用数据交换层技术以及坐标转换算法,扩大系统在移动设备上的适用范围,提高交通状态信息的发布效率。实验结果表明,该系统定位准确率达到95% 以上,平均减少了70% 的信息发布量。
关键词:
可变信息板,
交通诱导,
虚拟,
地图匹配,
移动终端
Abstract: Traffic guidance system is a method publishing the processed traffic data in a public platform and as a
reference for the user to select the path. Amount of information user receiving in a short time,not only a effects the identify rate of information,but also distracts the driver’ s attention,threats to their safety. Aiming at this problem,a system is proposed with a method of road network dynamic programming. With the environmental data of users and mapmatching algorithm to improve the accuracy of locate position. the method of road network dynamic programming is involved into this system to reduce the unnecessary road status information,and the data exchange technology and coordinate transformation are used to improve system performance at the application of the mobile terminal. Experimental results show that the system can prove the positioning accuracy rate is above 95% ,and compared with the traditional method of publication,which can effectively reduce the amount of information published by 70% .
Key words:
Variable Message Signs(VMS),
traffic guidance,
virtual,
map-matching,
mobile terminal
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