基于信息网格平台的车载交通信息服务系统研究  

In-Vehicle Traffic Information Service System Based On Information Grid Platform

作　　者：陈林[1] 蒋昌俊[1] 刘磊[1] 方钰[1] 

机构地区：[1]同济大学计算机系,上海 200092

出　　处：《ITS通讯》2005年第3期46-50,共5页

摘　　要：随着移动计算和嵌入式技术的飞速发展，嵌入式自主导航车载系统正得到广泛的应用。本文提出了一种建立在信息网格平台上的车载交通信息服务系统。该服务系统后台依托上海交通信息网格这样一个强大的智能交通信息中心，为前台车载终端用户提供包括实时交通信息，动态路径决策，公共设施查询等高附加值的交通信息服务，克服了传统的自主导航车载系统为用户提供的信息服务单一，不能够提供实时动态交通信息的缺陷。本系统的车载终端硬件采用龙芯处理器，软件采用Linux操作系统和基于JAVA的开发环境。在对上海信息网格的关键技术和体系结构做了简要介绍之后，本文对前台车载终端系统的架构、硬件设施和关键功能的实现算法做了详细介绍，并给出了系统运行的效果和性能测试结果。With the rapid development of the mobile computing and embedded technology, embedded in-vehicle navigator systems are being accepted widely. Based on ShangHai Traffic information Grid, a powerful intelligent traffic information center, this paper presents a in-vehicle traffic information service system based on information grid platform. The system provides in-vehicle equipment users with high value-added traffic information service, such as real time traffic information, dynamic route scheme, public establishments search, and etc, which overcome the limitations of the traditional in-vehicle traffic information service system that can＇t provide enough kinds of services and real dynamic traffic information. The hardware and software of the in- vehicle equipment adopt “GODSON”CPU, Linux operating system and JAVA development environment respectively. After a brief introduction about key technologies and the architecture of ShangHai Traffic information Grid, a detail description of the architecture, hardware and implement algorithm of main functions of the in-vehicle equipment is presented. Last, the effects of the system running and the results of the performance test are also presented.

关 键 词：智能交通系统 交通信息网格 车载终端 动态交通信息 

分 类 号：U491.7[交通运输工程—交通运输规划与管理] TP393[交通运输工程—道路与铁道工程]