【摘要】 <正> 1 引言时空数据库(Spatio-temporal Database)是指存储随着时间发生变化的空间对象的数据库系统,这里的变化包括对象的位置和/或范围的变化。时空数据库的应用涉及到全球变化(如气候、陆地的变化)、交通运输(交通监控、智能传输系统)、社会(人口统计、健康)及多媒体系统等多个方面。因为涉及到时间因素,时空数据库需要管理大量的带有更多还原

【Abstract】 Spatio-temporal database manages the large amount of spatial objects that change over time. It is necessary to query the spatio-temporal objects of the past and the current and to anticipate the future of spatio-temporal object-s. It is important to design an efficient index mechanism for accessing the spatio-temporal data efficiently.The paper analyzes the features of the spatio-temporal objects , studies the methods of spatio-temporal index mechanisms , classifies the index mechanisms, and discusses the key technologies of spatio-temporal indexes. And it also presents the index methods of STADBS that we are studying.更多还原