A method and system for three-dimensional modeling of substations based on surveying and mapping and two-dimensional images

Abstract

The invention discloses a transformer station three-dimensional modeling method and system based on surveying and mapping and a two-dimensional image. The method comprises the following steps: obtaining the two-dimensional images of transformer station equipment; by use of a K-means algorithm, segmenting objects in the two-dimensional image; by use of a fast Fourier algorithm, extracting shape features of the shapes of the objects; retrieving three-dimensional shapes matching the shape features from a shape database; combining the three-dimensional shapes to form three-dimensional models of the transformation equipment; obtaining surveying and mapping data of the transformer station equipment, wherein the surveying and mapping data at least comprises the actual dimension and the actual spacing of the transformer station equipment; according to the surveying and mapping data, determining relative position relations between the three-dimensional models; and establishing a three-dimensional scene model of a transformer station where the transformer station equipment is located by use of each three-dimensional model. By use of the method and system provided by the invention, three-dimensional modeling for the transformer station can be automatically realized, the modeling cost and time can be greatly reduced, and the efficiency is improved.

Description

technical field [0001] The invention relates to the field of graphic modeling, in particular to a method and system for three-dimensional modeling of substations based on surveying and mapping and two-dimensional images. Background technique [0002] At present, the scale of the power grid is expanding day by day, and the complexity of the equipment layout in the substation is increasing. The establishment of a three-dimensional model of the substation is convenient for new employees to familiarize themselves with the environment of the substation. [0003] In the prior art, a three-dimensional modeling technique is usually used to establish a scene model of a substation for new employees to be familiar with the environment of the substation. Specifically, there are mainly two types of 3D modeling methods: the 3D modeling method of substation based on 3D laser scanning technology, and the 3D modeling method of substation based on geometric modeling. The 3D modeling method o...

AI Technical Summary

Problems solved by technology

[0004] However, the 3D modeling method of substation based on laser scanning technology needs to rely on high-precision scanning to obtain massive point information, and the scanned data also requires complex and precise processing by background processing software before it can be converted into a real 3D equipment model, so the workload and costly

The 3D modeling method of substation based on geometric modeling needs to manually select similar shapes in the software for combined modeling according to the pictures of substation equipment, which cannot realize automatic matching modeling

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