摘要： 成功的导航应用不仅需要稳定的通信技术，精确的定位方法和高效的路径选择算法，同时还需要合理高效的数据组织，主要包括：合理管理空间数据以实现多尺度数据表达，实时数据组织，不同层的数据安排，数据分区，支持高效的多模式个人导航算法，在数据传输中采用最有效的数据压缩算法。该文基于NAVISTAR的实例研究，讨论了数据组织方法。
关键词:
个人导航服务,
数据组织,
数据模型,
实时数据,
位置服务
Abstract: A successful personal navigation application needs not only stable communication technique, accurate positioning methods and highly efficient routing algorithms, but also reasonable data organization. The key problems of data organization for personal navigation lie in several aspects. One is properly to manage the spatial data for representation with multiple scale levels. Another is to cope with the real-time data organization. The third is to arrange data in different layers and sections. The fourth is to make multiple levels of network representation for navigation computing. Also data compression and data model are also important. The paper discusses the data organization for an application case, NAVISTAR.
Key words:
Personal navigation service,
Data organization,
Data model,
Real-time data,
Location Based Services (LBS)
郑江华;晏 磊;刘岳峰;何丽娜;. 个人导航服务的数据组织研究[J]. 计算机工程, 2006, 32(24): 41-43.
ZHENG Jianghua; YAN Lei; LIU Yuefeng; HE Lina;. Study on Data Organization of Personal Navigation Services[J]. Computer Engineering, 2006, 32(24): 41-43.