基于对象关系数据库的时空数据管理研究  

Research on Spatio-Temporal Data Management Based on Object Relational Database

作　　者：彭霞[1] 方裕[1] 黄舟[1] 尹双石[1] 陈斌[1] 

机构地区：[1]北京大学遥感与地理信息系统研究所,北京100871

出　　处：《地理与地理信息科学》2006年第5期16-20,共5页Geography and Geo-Information Science

基　　金：国家自然科学基金资助项目(40501052);2005年测绘基金项目

摘　　要：现实世界中的地理实体具有空间及时态属性,有效的时空数据管理技术是实现地理信息广泛应用的基础。概括目前时空数据管理的一般策略,给出基于对象关系数据库的时空数据管理结构模型。在此基础上,介绍该模型所涉及的相关技术,并提出完整的模型实现的技术框架,给出时空数据库管理系统的原型实现TSpatialService。实例研究表明,该模型能够很好地支撑时空数据的管理及操纵。Recently, there has been a fast proliferation of applications creating spatio- temporal data that has to be processed, stored and queried efficiently. Consequently, there is a need for spatio - temporal data management systems that are able to support such storage or query operations. Spatio - temporal data management based on ORDB was derived in this paper. After bringing forward the structure model of spatio- temporal data management, one actual system named TSpatialService was designed and then implemented. The system is based on data model of Dynamic Field and accomplished through spatio - temporal extension on Postgre.SQL. Various spatio- temporal operations could be carried out in the system through simple SQL statements as well. By using the system, effective spatio- temporal data management was achieved.

关 键 词：时空数据 管理 对象关系数据库 地理信息系统 

分 类 号：P208[天文地球—地图制图学与地理信息工程]