云环境下的时空实体模型研究

摘要

在地理空间框架升级为时空信息云平台过程中,不仅面临着信息量、支撑技术和应用模式的提档升级,还面临着数据组织模式、管理模式以及应用模式等方面的挑战.在综合考虑人类认知、云计算特征以及地理空间框架现状的基础上,本文提出了时空实体对象化模型,依托行为与事件,实现几何、属性以及时态的一体化建模,并探讨了以地名地址为实体单元的地理空间框架实体化重构步骤,以期更好地满足云环境下的存储、管理以及服务要求.%In the process of upgrading the geospatial framework into the spatio-temporal information cloud platform,it not only faces the challenge of upgrading the information volume,supporting technology and application mode,but also facing the data organization mode,management mode and application mode.Based on the consideration of human cognition,characteristics of cloud computing and the current situation of geospatial framework,this paper proposes an object-oriented model of space-temporal entities,which realizes the integrated modeling of geometry,attributes and tense.The entity structure of the geospatial framework is reconstructed in order to better meet the storage,management and service requirements in the cloud environment.