A distribution network three-dimensional scene modeling method based on a mixed reality technology

Abstract

The invention provides a distribution network three-dimensional scene modeling method based on a mixed reality technology. The method comprises the following steps: S1, image acquisition: carrying outmulti-angle shooting on a distribution network engineering area by adopting an unmanned aerial vehicle; S2, image preprocessing: images shot by the unmanned aerial vehicle are screened, denoised andcalibrated; S3, obtaining feature points: carrying out feature extraction on the preprocessed image; S4, camera calibration: establishing a geometric model of camera imaging, and solving geometric model parameters of the camera; S5, acquiring sparse point cloud: through a calibration result, reversely deriving the three-dimensional positions of the two-dimensional feature points in the image, andreversely deducing all the two-dimensional feature points into a three-dimensional space to form the sparse point cloud; S6, obtaining dense point cloud: processing the sparse point cloud data to formdense point cloud; And S7, surface reconstruction: performing surface reconstruction on the dense point cloud data. The invention provides the distribution network three-dimensional scene modeling method which can improve the design efficiency and reduce the design errors.

Description

technical field [0001] The invention relates to the technical field of distribution network engineering, in particular to a method for modeling a three-dimensional distribution network scene based on mixed reality technology. Background technique [0002] Mixed reality technology (Mix Reality, MR) is a form between virtual scenes and real scenes, including augmented reality and augmented virtuality, and refers to a new visual environment generated by merging reality and virtuality. Physical and digital objects coexist and interact in real time in a new visual environment. [0003] At present, the distribution network has problems such as unreasonable structure, low power supply reliability, long power supply radius and unreasonable distribution of power supply, which seriously limits the implementation of planned maintenance, peak summer and fault recovery. Therefore, the optimization of the distribution network frame has become an urgent problem to be solved by the power s...

AI Technical Summary

Problems solved by technology

[0005] The workload of on-site measurement is huge. Although the steps are standardized and many instruments and meters will be assisted, there are still a large number of human-subjective factors in the measurement process, which will have an uncertain impact on the design results. resulting in design errors and low design efficiency

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