基于Web服务的数字城市空间数据资源共享研究  

Research on spatial data resource sharing in digital city based on Web Service

作　　者：林俞先[1] 李琦[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：《测绘科学》2008年第4期209-211,208,共4页Science of Surveying and Mapping

基　　金：国家973计划资助项目(2006CB701306)

摘　　要：数据异构、处理复杂、海量管理、部门专有等问题制约了空间数据在数字城市中广泛的共享与应用。本文以Web服务技术为核心,提出了一个包括管理层、数据层、服务层以及应用层的数字城市空间数据资源共享框架。研究了共享数据服务平台层基本服务的实现,以及服务的组合、服务的注册与发布、服务的Qos等关键技术。最后通过共享服务平台支撑下的数字城市应用系统的实现,验证了本文提出的方法在数字城市建设中的实用性和有效性。Some problems in spatial data, such as heterogeneous format, complexity of processing, enormous data management and possessed by department have become obstacles to realize wide sharing and application of spatial data in digital city. Based on web service a framework of spatial data resource sharing is proposed in this paper, which composed of management tier, data tier, service tier and application tier. Then a data sharing service platform is designed and implemented. Services composition, services registra- tion, services publication and Qos of service are discussed as main technologies. Finally, some applications in digital city supported by service platform have been implemented to prove the usability and feasibility of this data sharing framework.

关 键 词：数字城市 空间数据共享 服务平台 WEB服务 

分 类 号：P208[天文地球—地图制图学与地理信息工程]