摘要： 支持实时交通信息是新一代动态导航应用的基本特征。该文以现有导航电子地图物理存储格式中较成熟的分层道路模型为基础，结合线性参照方法提出多层路网统一编码方法以及基于该方法的动态分层路网存储模型DyHiRD，解决交通信息在冗余数据模型下的一致性更新问题。实验结果表明，该模型的更新效率满足支持大型城市交通信息服务的终端动态导航应用需求。
关键词:
动态导航,
存储模型,
动态分段
Abstract: It’s a fundament feature of the next generation dynamic navigation system to support Real-Time Traffic Information(RTTI). Based on the existing hierarchal road model of navigation electronical map, this paper proposes an uniform method for multilayer road coding and a Dynamic Hierarchal Road Model(DyHiRD) to improve the efficiency and correctness of RTTI storage. Experimental results show that this model can satisfy the requirements of dynamic navigation application in large cities.
Key words:
dynamic navigation,
storage model,
dynamic segment
中图分类号:
李 楷;钟耳顺. 面向车载导航地图的动态交通信息存储模型[J]. 计算机工程, 2009, 35(7): 245-246,.
LI Kai; ZHONG Er-shun. Vehicle Navigation Map Oriented Dynamic Traffic Information Storage Model[J]. Computer Engineering, 2009, 35(7): 245-246,.