全球网格位置服务在自然资源数据服务中的应用研究

Application Research of Global Geo-grid Location Service in Natural Resources Data Service

本文以单一专题数据的挖掘应用和多专题数据的整合应用为切入点,研究了基于全球网格剖分和网格编码基础上实现的网格位置服务在自然资源数据服务中的应用。在单一专题数据的挖掘应用方面,本文针对当前不动产登记信息管理与服务现状和具体需求,提出了一种基于不动产单元位置、大小和形状的不动产单元网格剖分编码解决方案。该编码方案实现了不动产单元标识的稳定性、位置关联性与可溯源性等功能特性,解决了现有编码方法在不动产登记信息管理与服务方面的不足,并开展了上述功能特性的业务场景应用验证。在自然资源多专题数据整合应用方面,本文开展了基于全球网格剖分编码的数据组织与索引机制研究和应用,并在土地利用规划、土地利用现状和自然资源不动产等自然资源多专题数据整合方面做了应用和验证,验证了基于网格剖分编码的数据组织与索引机制在自然资源多专题空间要素整合应用方面的高效性。上述研究对于推动全球网格剖分与编码服务在自然资源数据服务中的应用,提升自然资源数据服务能力具有重要意义。

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.