摘要
导航电子地图路网数据的描述,组织和管理是移动导航系统的设计中涉及的关键问题。从移动导航系统对路网数据的信息要求出发,针对以往路网数据模型的不足,探讨了一种名为HOT的层次化路网模型。详细论述了该模型的数据对象描述和层次结构定义,特别是针对网络拓扑结构的刻画给出了解决方案。通过在某市交通信息网格项目中的应用,表明该模型具有信息完备、结构清晰、简洁实用等优点。
The description, organization and management of navigation digital map route data are the key techniques in navigation system design. Based on the analysis of mobile navigation system＇s information requirement to route data, a hiberarehy of topologized （HOT） route network model was proposed. The detailed discussion on data objects description and hiberarehy structure definition were described, especially the resolution of network topology. The utilization of this data model in some city traffic information grid confirms its advantages of self-contained description, legible structure and practicability.
出处
《计算机应用》
CSCD
北大核心
2005年第11期2673-2675,共3页
journal of Computer Applications
基金
国家自然科学基金资助项目(60125205)
关键词
移动导航系统
导航电子地图
路网数据
mobile navigation system
navigation digital map
route data
