城市空间资源数据库同步技术研究

城市空间资源数据库实时同步问题,是当前城市空间信息资源开发与应用亟待解决的问题,它对于提高地理空间信息现势性与应用水平具有重要的理论和实践意义。通过分析空间信息资源同步技术需求和现有技术的不足,提出了基于空间匹配分类更新模式的同步技术方案,重点探讨了＂空间要素快速匹配技术＂、＂基于WCF信息快速传输技术＂、＂Arc SDE版本管理＂、＂原子钟授时同步控制技术＂等关键技术的开发与应用。技术方案在Arc Engine10.1＋VS.NET 2010平台上实现,并经过福州市勘测院生产实践的检验,证明其可行性实用性。

Research on Synchronization Technology of Urban Spatial Resource Database

Urban spatial resource database real- time synchronization problems,is the current development and application of urban spatial information resource problems,it has important theoretical and practical significance to improve the currency of geospatial information and application level. This paper analyzes the spatial information resources deeply synchronization technology needs and the deficiency of existing technology. puts forward a synchronization scheme based on spatial matching classification update mode,focusing on the ＂spatial feature fast matching technology＂,＂fast information transmission technology based on WCF＂,＂Arc SDE version management＂,＂atomic clock timing synchronous control technology＂and soon on key technology development and application. Technical proposal on ＂Arc Engine10. 1 ＋ 2010 VS. NET＂platform implementation,by the production test of Fuzhou Survey Mapping Institute has proved it＇feasibility Practicability. Research results can provide reference for the same type urban to spatial database update maintenance.