摘要：

浮动车的实时路况信息采集存在采集内容复杂、信息不准确等问题。为此，提出一种基于GPS终端的实时路况信息采集方法。采用面向简化路网模型的采集方法，只考虑路段行程时间与路段中途停车时间，将GPS终端替代服务器负责采集内容和地图匹配。实验结果表明，与传统的基于服务器端采集方法相比，该方法能使采集内容更简单，采集信息更准确，可减轻服务器端的高负荷，便于采集信息的传输。

关键词: GPS终端, 简化路网模型, 信息采集, 路段行程时间, 停车时间, 节点临界区

Abstract:

The research on information collection of real-time rode traffic based on floating car is not perfect currently, with the problems of the complexity of collection content, inaccuracy of collection information. This paper presents a method for information collection of real-time road condition for the simplified road network model based on the GPS terminal, which includes information collection method for simplified network model considering road segment travel time and stopping time on the road. GPS terminals are in charge of the calculation of collection content and map matching rather than the server. Experimental results show that the method simplifies collection content and makes collected information more accurate, which can not only reduce the high load of the server-side, but also provide convenience for the transmission of collection information.

Key words: GPS terminal, simplified road network model, information collection, road segment travel time, stopping time, node critical region

中图分类号: 

• TP18