交通信息分发及查询系统的设计与实现*

车载无线网络技术包括集中式模式及自组织模式。结合了两种模式优点的可扩展车载实时信息发布及信息查询平台是实现各种基于车载无线网络技术的应用基础。V -traffic系统利用基于排序的路况信息分发算法在车载无线自组网上实现高效的路况信息发布，同时利用较可靠的移动通信网络为司机提供路况详情的查询服务。通过对V -traffic系统的现场测试及对该系统核心分发算法的仿真测试，验证了系统的实用性与可扩展性。作为一个演示系统，V-traffic系统实现了可扩展的车载实时信息发布平台及信息查询平台的框架。

Design and implementation of traffic information dissemination and query system

There were two kinds of vehicular wireless networks: the centralized networks and the Adhoc networks.It was important to build a platform which made use of both networks to provide information dissemination and query functions.V-traffic system realized an efficient traffic information dissemination algorithm based on VANET's.At the same time,V-traffic system provided drivers with the function of detailed traffic information query based on mobile communications network.The viability and extendibility of the ...