Acta Geodaetica et Cartographica Sinica ›› 2021, Vol. 50 ›› Issue (9): 1183-1193.doi: 10.11947/j.AGCS.2021.20210160

• Smart Surveying and Mapping • Previous Articles     Next Articles

Research progress and application of spatiotemporal knowledge center

LIU Wanzeng1, CHEN Jun1, ZHAI Xi1, LI Ran1, WANG Xinpeng1, ZHAO Yong1, ZHU Xiuli1, XU Zhu2, ZHAO Tingting1, PENG Yunlu1, SHEN Li2   

  1. 1. National Geomatics Center of China, Beijing 100830, China;
    2. Faculty of Geosciences&State-Province Joint Engineering Laboratory of Spatial Information Technology for High-speed Railway Safety, Southwest Jiaotong University, Chengdu 611756, China
  • Received:2021-03-29 Revised:2021-05-15 Published:2021-10-09
  • Supported by:
    The National Key Research and Development Program of China (No.2018YFC0807005)

Abstract: 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.

Key words: spatiotemporal knowledge center, spatial knowledge graph, spatiotemporal data ecology, spatiotemporal knowledge data base

CLC Number: