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Multi-source heterogeneous spatial data archiving method based on self-adaptive metadata template

A spatial data, multi-source and heterogeneous technology, applied in the field of multi-source and heterogeneous spatial data archiving, can solve the problems of frequent software modification and reduced efficiency of archiving and storage.

Active Publication Date: 2020-10-30
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of a lot of new data, it is necessary to frequently modify the software
Moreover, when the amount of spatial data becomes large, the efficiency of archiving and storage will often be greatly reduced, which will have many adverse effects on subsequent data processing, data sharing and other operations

Method used

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  • Multi-source heterogeneous spatial data archiving method based on self-adaptive metadata template

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Embodiment Construction

[0022] Below, the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0023] like figure 1 As shown, a multi-source heterogeneous spatial data archiving method based on an adaptive metadata template includes the following steps:

[0024] (1) For a new data type, by uploading the metadata file, the tree structure information of the metadata file is automatically parsed and extracted;

[0025] (2) Obtain the element information of all leaf nodes according to the tree structure of the metadata file, configure its corresponding database fields and Chinese meaning information,

[0026] (3) Jointly extract element information and corresponding database fields and Chinese meaning information, classify and summarize the information, automatically generate a metadata analysis template and save it in the database; the metadata analysis template includes element path, database field, field type and Chinese meaning;

[...

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Abstract

The invention discloses a multi-source heterogeneous spatial data archiving method based on an adaptive metadata template, and belongs to the technical field of spatial data management. According to the method, a metadata analysis template is constructed, template information is read from a database in real time in the data archiving and storage process, and dynamic analysis of spatial data metadata cataloguing information is completed; concurrent starting and recycling of data archiving threads are achieved by utilizing a working mechanism of a thread pool, so that software can be operated ina multi-thread and high-efficiency manner; a data archiving task management mechanism is designed, the processes of metadata analysis, standardized processing, cataloguing storage, archiving storageand the like of data archiving storage are comprehensively considered, and batch, high-concurrency and high-reliability operation of data archiving storage tasks is achieved. According to the method,the metadata analysis template is customized and generated according to the characteristics of various spatial data, various problems in the existing data archiving process are avoided, and dynamic self-adaptive, high-reliability and high-efficiency multi-source heterogeneous spatial data archiving can be achieved.

Description

technical field [0001] The invention relates to the technical field of spatial data management, in particular to a multi-source heterogeneous spatial data archiving method based on an adaptive metadata template, which can be applied to archiving remote sensing data, ocean data, meteorological data and geographic information data. Background technique [0002] At present, satellite remote sensing technology has been widely used in military, civilian, and commercial fields, and there are many satellite series. All kinds of spatial data need to be stored after processing. After the data file is obtained, the metadata file (usually an XML file) needs to be parsed, and then the parsed metadata catalog information is stored in the database. Store the data files in the specified location according to the rules. [0003] At present, mainstream data archiving methods are roughly divided into steps such as data analysis, metadata warehousing, and data archiving. Among them, the meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/16G06F16/31G06F16/35G06F9/50
CPCG06F16/164G06F16/322G06F16/35G06F9/5038
Inventor 汪家瑞赵汝哲李峰田小玲王士成徐小刚徐炎
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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