新型城镇化的建设和管理经常涉及到多源异构时空数据的集成和协同应用,其中基础地理数据因具有数据描述信息可被快速识别,有些数据如实时感知数据等,因没有描述信息而难以被识别,使得数据无法及时共享应用。因此,本文分析了不同新型城...新型城镇化的建设和管理经常涉及到多源异构时空数据的集成和协同应用,其中基础地理数据因具有数据描述信息可被快速识别,有些数据如实时感知数据等,因没有描述信息而难以被识别,使得数据无法及时共享应用。因此,本文分析了不同新型城镇化途径下时空数据共享应用需求,总结了时空数据的时间属性、空间属性和内容属性在共享应用中的作用,并从其可共享性快速识别的角度出发,以时空数据的时间、空间和内容等属性为主要内容设计了一个轻量级的时空数据共享信息描述框架(description framework of spatial data sharing information,DFSDSI)实现多标准时空本体数据共享特征的统一表达,从而为城镇多源异构时空数据可共享性的快速识别提供判断依据。展开更多
This paper proposes a theoretical framework of spatial information sharing in a digital city, and analyzes its technical characteristics. According to the service-oriented architecture (SOA) framework, a geospatial in...This paper proposes a theoretical framework of spatial information sharing in a digital city, and analyzes its technical characteristics. According to the service-oriented architecture (SOA) framework, a geospatial information sharing platform is put forward. The spatial information sharing model based on SOA is designed. A prototype platform realizing multiple-source spatial information sharing based on ArcGIS Server is developed.展开更多
文摘新型城镇化的建设和管理经常涉及到多源异构时空数据的集成和协同应用,其中基础地理数据因具有数据描述信息可被快速识别,有些数据如实时感知数据等,因没有描述信息而难以被识别,使得数据无法及时共享应用。因此,本文分析了不同新型城镇化途径下时空数据共享应用需求,总结了时空数据的时间属性、空间属性和内容属性在共享应用中的作用,并从其可共享性快速识别的角度出发,以时空数据的时间、空间和内容等属性为主要内容设计了一个轻量级的时空数据共享信息描述框架(description framework of spatial data sharing information,DFSDSI)实现多标准时空本体数据共享特征的统一表达,从而为城镇多源异构时空数据可共享性的快速识别提供判断依据。
基金Supported by the National Key Basic Research and Development Program of China (No2004CB318206) the Basic Research of Survey and MappingBureau Project (No1469990711111)
文摘This paper proposes a theoretical framework of spatial information sharing in a digital city, and analyzes its technical characteristics. According to the service-oriented architecture (SOA) framework, a geospatial information sharing platform is put forward. The spatial information sharing model based on SOA is designed. A prototype platform realizing multiple-source spatial information sharing based on ArcGIS Server is developed.