Heterogeneous geospatial data management technique based on spatial object generalized model and grid body indexing

A technology of geospatial data and spatial objects, applied in the field of geographic information, to improve decentralized and independent management, ensure consistency and integrity, and improve management security

Inactive Publication Date: 2013-04-17
北京峰盛博远科技股份有限公司
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Problems solved by technology

[0007] The present invention proposes a set of geospatial data management technology based on spatial object classification and grid body indexing, the purpose of which is to solv

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  • Heterogeneous geospatial data management technique based on spatial object generalized model and grid body indexing
  • Heterogeneous geospatial data management technique based on spatial object generalized model and grid body indexing
  • Heterogeneous geospatial data management technique based on spatial object generalized model and grid body indexing

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Embodiment Construction

[0017] 1. Technical framework for heterogeneous geospatial data management based on spatial object classification model and grid index

[0018] figure 1 The basic framework of this heterogeneous geospatial data management technique is described. The unified management interface for heterogeneous spatial data (hereinafter referred to as "management interface") realizes the organizational management and efficient indexing of heterogeneous spatial data through two parts of work. On the one hand, the management interface unifies the classification model through spatial objects, and draws on ideas such as abstraction, inheritance, and instantiation of classes to integrate multi-source geospatial data (Shape files, ArcGrid files, GeoTiff files, PostGis and other spatial map databases, WMS map services, etc.) ) Classify and abstract according to the properties of spatial objects, and associate and merge objects according to their attributes such as longitude, latitude, and elevation...

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Abstract

The invention discloses a heterogeneous geospatial data management technique based on spatial object generalization and grid body indexing to well achieve effective management and efficient search of geospatial data on the multi-source heterogeneous condition. A heterogeneous geospatial data unified management interface is designed, and heterogeneous multi-source geospatial data are uniformly organized and managed in a heterogeneous spatial object generalization method according to the general attribute of spatial objects; and efficient indexing of heterogeneous multi-source geospatial data is achieved by adopting the hybrid heterogeneous spatial data grid body indexing technique based on R tree indexing and grid dividing indexing. The heterogeneous geospatial data management technique effectively improves efficiency of multi-source heterogeneous geospatial data management, reduces complexity of data accessing and indexing, and is an effective practice for solving the realistic problem of a geographic information system (GIS).

Description

technical field [0001] The invention belongs to the geospatial data management technology in the field of geographic information, and is a set of technical methods for solving problems such as centralized management, organizational storage, and efficient indexing of highly complex and highly heterogeneous geospatial data. Background technique [0002] Geographic Information System (GIS, Geographic Information System) is a computer system that collects, stores, manages, analyzes, describes and applies the data information related to the spatial geographical distribution of the entire or part of the earth's surface (including the atmosphere), and is widely used. In urban planning, municipal management, government management, environment, resources, transportation, public security, disaster prediction, economic consulting, investment evaluation and military and other fields related to geographic information. With the continuous expansion of application fields and the continuous...

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Application Information

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IPC IPC(8): G06F17/30
Inventor 蒋亚群张昱梅彦铮徐永生刘星邓宝松
Owner 北京峰盛博远科技股份有限公司
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