Digital earth model construction method and device

Abstract

The invention relates to a digital earth model construction method and device, and the method comprises the steps: carrying out the space division of the earth according to the longitude, latitude and altitude of the earth, obtaining a plurality of grid units, carrying out the coding according to the three-dimensional space range information and geological information corresponding to the grid units, and obtaining the coding information; combining the set of each grid unit into a geologic body identifier, and carrying out coding information labeling on the grid units in the geologic body identifier to obtain a digital earth model. On the basis, the earth is subjected to standardized subdivision and divided into space grids which are similar in size and free of gaps and overlapping, grid units in the space grids are subjected to unified three-dimensional space range information coding and geological information coding, digital coding description of the earth is achieved, and a digital earth model based on coding is formed. The retrieval, transmission and analysis efficiency of the digital earth model is greatly improved, and the informatization requirement is met.

Description

technical field [0001] The invention relates to the technical field of geological modeling, in particular to a method and device for constructing a digital earth model. Background technique [0002] The 3D geological model is a 3D quantitative model that combines geological, well logging, geophysical data and various interpretation results or conceptual models to generate a 3D quantitative model, which is widely used in solid mineral exploration, oil and gas evaluation, urban geology, environmental geology and other fields. However, the current 3D geological models each serve a specific purpose or demand, and the models constructed by quantitative and qualitative methods are only suitable for a specific application scenario. When the requirements or application scenarios change, even if the changes are very small, the 3D geological model needs to be rebuilt. Among them, as a kind of three-dimensional geological model, digital earth is based on computer technology, multimedi...

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Problems solved by technology

[0003] At the same time, due to the different basic grids for modeling of each 3D geological model, the geological bodies cannot be uniformly represented among the models, let alone information indexing, sharing or comprehensive analysis, which is not conducive to the digitization and informatization of the 3D geological model

Traditional digital earth models such as Google Earth are mainly aimed at the surface of the earth, and it is difficult to express the deep information of the earth. There is no unified model for digitization and informatization, and it is difficult to meet the needs of digital earth in the era of big data.

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