Data organization and storage method and device for dynamic geographic phenomenon

Abstract

The invention provides a data organization and storage method and device for a dynamic geographic phenomenon. According to the method, a geographic process semantic expression structure of a dynamic geographic phenomenon and a geographic process expression model in a graph structure form are sequentially established. The geographic process storage model finally realizes organic organization and unified storage of geographic objects of dynamic geographic phenomena, geographic object changes and behavior (evolution relationship) information causing the object changes in a graph structure form byutilizing a graph database. So visible, According to the invention, the behavior causing the object change is effectively expressed and stored in the form of a graph structure. Behavior expression and storage modes based on the graph structure form can be unified on the whole. The evolution relation between the geographic object entities of the dynamic geographic phenomenon is comprehensively, intuitively and vividly reflected, so that the problems existing in data organization and storage of the dynamic geographic phenomenon in the prior art can be effectively overcome, and support can be better provided for analyzing and mining a space-time change mechanism of the dynamic geographic phenomenon.

Description

technical field [0001] The invention belongs to the technical field of organizational expression and storage of geographic spatiotemporal data, and in particular relates to a data organization and storage method and device for dynamic geographic phenomena. Background technique [0002] Dynamic geographical phenomena refer to dynamic phenomena with the characteristics of "birth-development-death" in the geographical world, such as typhoons, rainstorms, and oceanic mesoscale eddies. Integrated earth observation and crowd source data acquisition technology provide technical support for obtaining high-temporal-spatial-resolution data of dynamic geographical phenomena with the characteristics of "genesis-development-death", which can further analyze and mine the temporal-spatial pattern and evolution of dynamic geographical phenomena The data foundation is provided, but this requires an effective spatio-temporal data organization and storage model to organize and store the spatio...

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Problems solved by technology

[0003] Geographic spatio-temporal data organization and storage models have gone through the development stages of object-oriented expression, object-oriented change, oriented simulation event sequence and oriented geographical process. The first three modeling theories lack the evolution relationship of continuous dynamic geographical phenomena. The description and characterization of geographic objects make it difficult to further analyze the evolution mechanism of geographic object entities and predict the dynamic changes of geographic object entities; for the above-mentioned geographic process-oriented modeling theory, the existing research carried out in dynamic geography Some attempts have been made in conceptual logical expression of the relationship between geographical process objects and geographical processes and physical storage in databases, but the following problems still exist:

[0005] 2) Although some research attempts to use object-relational databases to store the evolution relationship of geographic object entities, this storage method needs to store data related to the evolution relationship of geographic object entities based on many data tables. This storage feature leads to the overall dynamic geographic phenomenon. The data storage structure of the evolution relationship is relatively scattered, which fails to realize the organic organization and unified storage of the overall evolution relationship of dynamic geographical phenomena, and makes it difficult to realize the in-depth analysis of the evolution relationship of geographic objects and entities, which brings great benefits for the analysis and mining of the spatiotemporal change mechanism of dynamic geographical phenomena. Inconvenience, especially for complex evolution relations

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