Key Techniques for Dynamic Updating of National Fundamental Geographic Information Database

doi:10.11947/j.AGCS.2015.20150089

Abstract

Abstract:

One of the most important missions of fundamental surveying and mapping work is to keep the fundamental geographic information fresh. In this respect, National Administration of Surveying, Mapping and Geoinformation has launched the project of dynamic updating of national fundamental geographic information database since 2012, which aims to update 1:50 000, 1:250 000 and 1:1 000 000 national fundamental geographic information database continuously and quickly, by updating and publishing once a year. This paper introduces the general technical thinking of dynamic updating, states main technical methods, such as dynamic updating of fundamental database, linkage updating of derived databases, and multi-tense database management and service and so on, and finally introduces main technical characteristics and engineering applications.

Key words: fundamental geographic information, database, dynamic updating, linkage updating

CLC Number:

P282

WANG Donghua, LIU Jianjun. Key Techniques for Dynamic Updating of National Fundamental Geographic Information Database[J]. Acta Geodaetica et Cartographica Sinica, 2015, 44(7): 822-825.

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