Space data distributed publishing and sharing method based on subdivision grids

Abstract

The invention discloses a space data distributed publishing and sharing method based on subdivision grids. The method comprises the following steps: S1, a distributed spatial data publishing and gathering mechanism: data producers / publishers exist in a multi-point distributed manner, autonomously publish data and continuously maintain the data; and the data aggregation / server dynamically aggregates the grid data published by each point according to user requirements; s2, constructing of a distributed spatial data sharing system: the system provides a unified publishing tool, and each department autonomously performs grid data publishing; and the center node dynamically gathers corresponding grid data according to user requirements, and generates a grid chart conforming to an OCG standard; and S3, a data and technology processing flow: a grid data publisher tool is proposed, and a data publishing flow and a data service flow are determined. The invention provides a distributed spatial data publishing and sharing mechanism and architecture based on a subdivision grid and related technologies, which are beneficial to solving the problem of sharing and fusion analysis of spatial data in a big data era.

Description

technical field [0001] The invention belongs to the technical field of information technology, and in particular relates to a method for distributed release and sharing of spatial data based on subdivided grids. Background technique [0002] data exchange technology [0003] Data exchange refers to the integration of several business systems that have been constructed separately to realize the transmission and sharing of data or files between several business subsystems, improve the utilization of information resources, and ensure the integrity of information distributed among heterogeneous systems. interconnection. [0004] The way of data exchange is generally distinguished according to the type of data. For example, structured or semi-structured data can be exchanged through ETL, and unstructured data such as compressed files, movies, pictures, etc. can be transmitted through files. Exchange, and for some exchanges with high real-time performance, the interface form is ...

AI Technical Summary

Problems solved by technology

[0022] 1. In terms of mechanism, the essence of the existing data sharing and exchange platform architecture is that each department collects data one-way to the central node (such as the big data management department). Each department often thinks that the data will lose its control after the data flows out. Resistance and lack of enthusiasm for subsequent continuous updates of data

[0023] 2. Technically, the data level in the existing data sharing and exchange platform is actually the provision of the original data set, without necessary processing such as data integration and assimilation, which is not convenient for direct use; at the same time, the original data set has not undergone certain processing , easy to expose the original data source and even personal privacy

[0024] 3. Although the existing spatial information service platform has a release process (mechanism) for spatial data, they are all released according to the layers of preset themes. It is difficult to cut and use different layers directly and flexibly, and it does not support the dynamics of custom layers. Mapping function requirements; at the same time, data update can only be done by layer, it is difficult to guarantee the current situation of the data

[0025] 4. Although the indexing of spatial data has been realized based on subdivided grid coding, deep functions such as grid data assignment, further grid data release, and grid map dynamic generation have not been formed.

In addition to being used for data query and retrieval, the application value of grid technology for data calculation and analysis needs to be tapped urgently

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