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Discrete geographic data archiving management method

A technology of geographic data and management methods, applied in the field of data archive management, can solve problems such as low access efficiency, difficult storage, and complicated reading and writing, so as to improve access efficiency and storage capacity, facilitate identity authentication, and facilitate data security and confidentiality. The effect of migration upgrade

Active Publication Date: 2019-02-12
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0003] Aiming at the problems existing in the use of existing discrete geographic data, the present invention discloses an efficient archiving management method for discrete geographic data. Based on the location and precision information contained in a large number of discrete geographic data, the method first constructs a globally unique code, and then Establish an efficient index access mechanism, and finally use memory file mapping technology to realize efficient real-time data reading and writing. This method solves the problems of difficult storage, complex reading and writing, and low access efficiency encountered in the use of discrete geographic data

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0033] Such as figure 1 As shown, the present invention discloses an efficient archiving management method for discrete geographic data, comprising the following steps:

[0034] S1: Analyze and read in the regional location and data accuracy information contained in the discrete geographic data, and construct a globally unique geographic code;

[0035] Note that the standardized geographic data structure is expressed as GeoDataStruct:

[0036] GeoDataStruct i = {Lng, Lat, Precision}

[0037] Among them, GeoDataStruct i Represent the i-th geographic data, Lng represents the geographic longitude of the data, Lat represents the geographic latitude of the data, Precision is expressed as data accuracy in the present invention, but it can also be set to information such as data type and data source in specific events, It is mainly used to establish a global...

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Abstract

The invention discloses a discrete geographic data archiving management method, comprising the following steps of: 1 uniformly encoding the discrete small data or files; 2 designing an efficient retrieval tree based on unified coding, which is convenient for quick query; 3 utilizing a large file memory mapping technology to realize fast read and write access. The method of the invention effectively realizes the efficient access and storage control of the discrete small data or files.

Description

technical field [0001] The invention relates to the technical field of data archiving management, in particular to a discrete geographical data archiving management method. Background technique [0002] In the current various geographic information systems and simulation platforms, various geographical data are widely relied on, such as image data describing landforms, elevation data describing terrain, and vector data. Such data are generated based on regions in actual use. Yes, it is easy to generate a large amount of discrete small data, and the computer has problems such as fragmented storage, complex reading and writing, and low efficiency when processing such discrete data. Contents of the invention [0003] Aiming at the problems existing in the use of existing discrete geographic data, the present invention discloses an efficient archiving management method for discrete geographic data. Based on the location and precision information contained in a large number of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/29G06F16/13
Inventor 李彭伟李亚钊王玉珠郭婉梁新媛刘玲
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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