分析了几种常见的导航地图数据格式与模型,研究了其在开发导航系统时存在的问题,提出了支持地图数据动态更新和集成实时交通信息为未来导航地图数据模型的发展趋势。
Several popular navigable digital map data formats and models are explicated. Their disadvantages of developing navigation system are also analyzed. The development trend of the model is put forward, that is the model should support digital map dynamic update and integrate real-time traffic information.