多级时空数据库联动增量更新方法

Linkage incremental update method of multilevel spatiotemporal database

以安徽省地理信息公共服务数据资源体系为例,本文研究了多级结构的时空数据库组织形式,建立了多级时空数据库联动增量更新模型。基于该模型提出了底层驱动与需求驱动相结合的联动更新机制,实现联动更新技术流程,并在安徽省地理信息公共服务平台的更新工作中进行了应用和验证。

With the examle of Anhui Geoinformation Public Data System,this paper researches on the reform of multilevel spatiotemporal database,establishes the linkage update model of multilevel spatiotemporal database.Based on this model,the mechanism of linkage update combined with bottom-driven and demend-driven is proposed,the flow of linkage update is realized,the related method is applied and verified in the update task of Anhui Geoinformation Public Platform.