测绘通报 ›› 2019, Vol. 0 ›› Issue (5): 134-138.doi: 10.13474/j.cnki.11-2246.2019.0166

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Linkage incremental update method of multilevel spatiotemporal database

WEI Xuemei1,2   

  1. 1. Provincial Fundamental Geomatic Center of Anhui, Hefei 230031, China;
    2. Anhui Key Laboratory of Smart City and Geographical Condition Monitoring, Hefei 230031, China
  • Received:2019-01-14 Online:2019-05-25 Published:2019-06-04

Abstract:

With the examle of Anhui Geoinformation Public Data System,this paper researches on the reform of multilevel spatiotemporal database,establishes the linkage update model of multilevel spatiotemporal database.Based on this model,the mechanism of linkage update combined with bottom-driven and demend-driven is proposed,the flow of linkage update is realized, the related method is applied and verified in the update task of Anhui Geoinformation Public Platform.

Key words: geographical information, spatial data, spatiotemporal database, incremental update, linkage update

CLC Number: