Subdivision identification generation method and data search method of multi-source space data

Abstract

The invention discloses a subdivision identification generation method and a data search method of multi-source space data, and relates to the field of terrestrial space information organizations, geographic information systems and remote sensing and surveying and mapping technologies. The subdivision identification generation method includes steps of dividing the whole world into regular grids, encoding the grids, finding out grids containing the geographic range of the space data for the space data to be processed, utilizing codes of the grids as subdivision identifications of the space data to be processed, and storing the space data to be processed and the subdivision identifications in a related mode. The data search method includes steps of generating the subdivision identifications of all space data according to the subdivision identification generation method, finding out grids containing the geographic range of the space data for space data requiring searching, utilizing codes of the grids as accession numbers, finding out subdivision identifications corresponding to the accession numbers, extracting space data related to the subdivision identifications so as to obtain the space data of the learned searching. The methods are suitable for organizing and searching of the space data.

Description

technical field [0001] The present invention relates to the technical fields of geospatial information organization, geographic information system, remote sensing and surveying and mapping, and specifically relates to an automatic monitoring and analysis of spatial data files, further reading of spatial coordinate information, generation of global unified grid identification codes, and use of the identification to The method of data retrieval is used for the association and retrieval of multi-source spatial data. Background technique [0002] The application of geographic information system (GIS) has played a huge role in the stable and rapid development of social economy and human progress. [0003] Now GIS and data management systems use identification code ID to uniquely identify spatial data. However, due to the different degrees of understanding of the real world and different business needs of users or individuals, there are various ways to describe spatial information...

AI Technical Summary

Problems solved by technology

It is precisely because of the numerous and independent identification methods that cause the difficulty of multi-source spatial data association

[0004] Moreover, these spatial information identification codes ID are a kind of "static" identification codes, which cannot express the multi-scale nature of information, nor have the ability to express spatial positions

This results in users having to look up their own data dictionaries or metadata to match the same entity when sharing data, which will inevitably affect the efficiency of data sharing

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