时空知识中心的研究进展与应用

Research progress and application of spatiotemporal knowledge center

时空知识是对实体空间位置、形态、分布、关系、运动、变化、趋势等信息进行概括和凝练,形成具有时间和空间特性的知识。时空知识中心是时空知识获取、积累、创造、演化和利用的服务平台或环境。构建时空知识中心是智能化测绘面临的机遇和挑战,相关研究还处在起步探索阶段,尚无可供借鉴的、成熟的建设和服务模式。本文瞄准测绘“两服务,两支撑”的基本定位,借鉴国内外知识中心建设的实践,融入智能化测绘的有关理念,提出时空知识中心概念、内涵、技术框架、主体实现方法及研究进展,指出时空知识中心是现有地理信息中心智能化转型升级的发展方向。

Spatiotemporal knowledge is the knowledge with temporal and spatial characteristics formed by summarizing and condensing the information of spatial location,shape,distribution,relationship,movement,change and trend of entity.Spatiotemporal knowledge center is a service platform or environment for acquiring,accumulating,creating,evolving and utilizing spatiotemporal knowledge.The construction of space-time knowledge center is an opportunity and challenge for intelligent mapping.The relevant research is still in the initial stage of exploration,and there is no mature construction and service mode to be used for reference.This article aims at the new needs of natural resource management for surveying and mapping services,draws on the practice of knowledge center construction at home and abroad,incorporates the relevant concepts of intelligent surveying and mapping,and proposes the concept,connotation,technical framework,subject realization methods and research progress of the spatiotemporal knowledge center,and finally introduces the future development direction of spatiotemporal knowledge center from three aspects of development trend,key technology and engineering application.