浮动车信息处理系统关键技术的研究

本文介绍了智能交通领域中一种先进的交通信息采集发布系统-浮动车信息系统。浮动车使用GPS车载装置采集车辆的行驶参数(如时间、速度、坐标、方向等),并将这些数据通过GPRS网络传送到浮动车信息中心,经过汇总、处理后生成实时的路况交通信息,并通过互联网和GPRS、CDMA网络向公众发布。本文提出了浮动车信息处理的核心算法模型,主要包括地图匹配、路径推测和道路路况计算三部分,并分别对这些算法进行了详细描述。

Study on The Key Technology of Floating Car Information Processing System

This paper introduces a system of traffic information collection and distribution in ITS - Floating Car Information System, which is composed of on- board system on floating car and server in center. Floating car collects real- time data, including location, speed, and time, and uplinks it to center through commercial GPRS network. Center integrates and distributes road congestion and other public information to users via Internet, GPRS or CDMA. In this paper, a important algorithm of floating car system is proposed and described in detail, which is composed of Map- matching, route estimation and road states computing.