【摘要】 快速提供信息聚焦服务是新型智慧城市时空信息云平台迫切需要解决的难题。本文结合智慧城市时空信息云平台建设实践,以全空间城市信息模型为基础,分析了城市信息模型(CIM)与时空大数据的关系,研究了基于位置和主题聚焦的多源时空数据建库、基于工作流的时空大数据计算和可视化引擎等关键技术。在时空信息云平台应用全空间城市信息模型,快速提供城市信息聚焦服务应用。更多还原

【Abstract】 The rapid provision of information-focused services is a problem that the new smart city spatio-temporal information cloud platform urgently needs to solve.Based on the practice of building a smart city spatio-temporal information cloud platform,this paper analyzes the relationship between the city information model(CIM) and spatiotemporal big data based on the all-spatial city information model,and studies the key technologies such as multi-source spatio-temporal database construction based on location and topic focus,spatio-temporal big data calculation and visualization engine based on workflow.On this basis,the all-spatial city information model is used to provide informationfocused services in the spatio-temporal information cloud platform.更多还原