Spatio-temporal data integrated management method based on chain storage

A spatiotemporal data, chain storage technology, applied in the field of geospatial information data processing, can solve the problems of not establishing the relationship between update elements and original elements, lack of practical spatiotemporal data management methods, and difficulty in effectively exerting the huge value of geographic information, etc. To achieve the effect of saving time sorting overhead, saving user costs, and wide application

Active Publication Date: 2019-07-19
CHONGQING GEOMATICS & REMOTE SENSING CENT
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Problems solved by technology

[0002] The management of spatio-temporal data has always been a difficult problem in the field of geospatial information applications. At this stage, mainstream GIS platforms such as ArcGIS and Hypermap are mainly used to establish multiple time versions to manage spatio-temporal data of different time dimensions. This management method requires storage for each version. The full amount of data in the version causes a large amount of data redundancy. At the same time, the data update efficiency is low and the update cy

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  • Spatio-temporal data integrated management method based on chain storage
  • Spatio-temporal data integrated management method based on chain storage
  • Spatio-temporal data integrated management method based on chain storage

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[0045] The specific embodiments and working principles of the present invention will be described in further detail below with reference to the accompanying drawings.

[0046] Such as figure 1 As shown, a method for integrated management of spatiotemporal data based on chain storage, the specific steps are as follows:

[0047] Step 1: Analyze the original data, create a chain storage structure, use the chain storage structure to establish the chain relationship between spatiotemporal data elements in different temporal versions, and form a spatiotemporal data link;

[0048] Such as figure 2 As shown, the chain storage structure includes four fields GUID, Time, OldGUID, and Status. The GUID field is used to store the global unique identifier of the current tense of the spatiotemporal data element, and the Time field is used to store the spatiotemporal data element. The time of adding, deleting, or editing, the OldGUID field is used to store the globally unique identifier of the last ...

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Abstract

The invention discloses a spatio-temporal data integrated management method based on chain storage. The method comprises the following steps: analyzing original data, creating a chain type storage structure comprising four fields of GUID, Time, OldGUID and Status, establishing a chain type relation among spatio-temporal data elements of different time versions by adopting the chain type storage structure, and forming a space-time data chain; selecting a layer to be updated, setting an updating range, and updating spatio-temporal data elements and current states and global unique identifiers thereof to complete element updating and spatio-temporal data chain updating in the spatio-temporal data layer; and carrying out integrated management on the spatio-temporal data by utilizing the updated spatio-temporal data chain. The method has the remarkable effects that the spatio-temporal data chain is formed based on chain storage, only the updated data needs to be stored when space-time datamanagement is carried out, redundancy caused by repeated storage of data of different versions is remarkably reduced, and the efficiency of element space-time tracing query is improved.

Description

technical field [0001] The invention relates to the technical field of geospatial information data processing, in particular to a chain storage-based spatio-temporal data integrated management method. Background technique [0002] The management of spatio-temporal data has always been a difficult problem in the field of geospatial information applications. At this stage, mainstream GIS platforms such as ArcGIS and Hypermap are mainly used to establish multiple time versions to manage spatio-temporal data of different time dimensions. This management method requires storage for each version. The full amount of data in the version causes a large amount of data redundancy. At the same time, the data update efficiency is low and the update cycle is long. Moreover, because the data is updated simply after editing the data, there is no relationship between the updated elements and the original elements. Realize element-level spatio-temporal retrospective query. [0003] With the ...

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Application Information

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IPC IPC(8): G06F16/29
CPCG06F16/29
Inventor 杨航曾安明余静贾敦新张治清梁星袁超李林赵翔宇余洋陈雪洋程宇翔王炜刘骏黄潇莹
Owner CHONGQING GEOMATICS & REMOTE SENSING CENT
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