Journal of Geo-information Science >
Application Research of Global Geo-grid Location Service in Natural Resources Data Service
Received date: 2022-03-04
Revised date: 2022-05-02
Online published: 2023-09-05
Supported by
National Key Research and DevelopmentProgram(2018YFB0505305)
Based on the methods and standards of global grid subdivision, using the National Key Research and Development Program research achievement, i.e., Geo-grid location service in natural resources informatization, this paper investigated how to apply Geo-grid subdivision and grid encoding in real property registration information management and natural resources big data integration. This paper analyzed current situation of natural resources property registration information management and service and proposed a new real property identifier coding scheme based on the Geo-grid location service. This identifier coding scheme is based on the natural attributes such as location, size, shape of a real property unit. This new identifier coding scheme includes real property unit location identifier code and independent property right code. Real property unit location identifier code consists of location grid code, location scale code, longitude span code, latitude span code, and feature code. With a given longitude and latitude string of a real property unit, the real property unit location identifier code can be calculated automatically. Compared with the current identifier coding rule, this new identifier coding scheme realizes the functions of encoding stability, location correlation, and historical traceability. The encoding scheme can overcome the defects of current property identifier coding rule in information management and service. As a functional supplement, this identifier coding schema based on Geo-grid subdivision can be applied in real property registration information management and service with current coding rule. In natural resource big data integration, this paper studied data organization and indexes based on global grid subdivision. By means of setting mapping relationship between real locations of spatial elements and Geo-grid subdivision code, Geo-grid spatial index was established. This paper adopted land use data, land planning data, real property data of XiCheng District, Beijing, and compared two data indexes, Geo-grid spatial index and traditional spatial index. This paper tested the above index scheme in multi-data inquiry and retrieval of land planning, land use, and real property registration. As a result, the above data index scheme is efficient in multi-data integration of natural resources. The spatial index based on Geo-grid subdivision can break the bottleneck of traditional spatial index and improve the ability of multi-data integration. Also, the spatial index could improve the ability of natural resource survey, supervision, and macroscopic analysis. Our studies can promote the application of global grid subdivision and location service in natural resources big data, and improve the ability of natural resource big data management and data service.
WU Hongqiao , ZHANG Jingbo , HE Wei , LIU Juhai , HAO Shuo , CHENG Chengqi . Application Research of Global Geo-grid Location Service in Natural Resources Data Service[J]. Journal of Geo-information Science, 2023 , 25(9) : 1774 -1783 . DOI: 10.12082/dqxxkx.2023.220093
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