基于EPS地理信息工作站的地形数据连库增量更新技术研究  

Research on Database-connect Incremental Updating Technology of Topographic Data Based on EPS Geographic Information Workstation

作　　者：耿俊[1] 周旋[1] GENG Jun;ZHOU Xuan(Jiangsu Geomatics Center,Nanjing 210013,China)

机构地区：[1]江苏省基础地理信息中心,江苏南京210013

出　　处：《测绘与空间地理信息》2018年第9期86-88,共3页Geomatics & Spatial Information Technology

基　　金：江苏省测绘地理信息科研项目--1∶10 000 DLG数据库连库自动更新技术的研究(JSCHKY201702)资助

摘　　要：随着社会的飞速发展,地形数据的持续更新问题逐步成为新的研究课题。本文提出了基于EPS地理信息工作站的地形数据连库增量更新方法,通过对比获取两期数据增量进行数据连库的更新。使用快速上传下载技术,通过多个子库的在线更新,实现主库的离线协同更新。同时,针对图幅间的要素更新冲突,采用局部快速更新方式,最终形成连库增量更新数据库。本文提出的技术路线已应用于实际的生产实践中,为快速完成地形数据连库增量更新提供了技术方法。With the rapid development of society, the continuous updating of topographic data is becoming a new research topic. This paper presents a database-connect incremental updating method of topographic data based on EPS geographic information workstation, which obtains the data increment between two periods through comparison to complete database-connect update. This method uses quick upload and download technology to realize the offline collaborative updating of the main database by updating sub-databases. Besides, the local fast update method is adopted to form an incremental updating database which resolves conflicts between updating elements of different maps. The technical route proposed in this paper has been applied to actual production practice, and provides a rapid method for the database-connect incremental update of topographic data.

关 键 词：地形数据 数据增量 连库更新 快速上传下载 局部快速更新 

分 类 号：P208.1[天文地球—地图制图学与地理信息工程]