Power grid infrastructure construction checking method based on airborne laser radar system

An airborne laser radar and laser radar technology, applied in radio wave measurement system, information technology support system, 3D modeling, etc., can solve problems such as difficult workload estimation, low accuracy of budget funds, and unintuitive data, and achieve The effect of improving work efficiency

Pending Publication Date: 2020-06-26
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD +1
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  • Application Information

AI Technical Summary

Problems solved by technology

Compared with manual measurement, aerial photogrammetry is a big breakthrough, but it can only obtain pictures of routes, which is easily affected by occlusion, and the measurement accuracy is low. There are still problems such as unintuitive data, heavy field workload, difficult promotion, and work Therefore, how to

Method used

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Example Embodiment

[0035] To facilitate understanding, first explain some technical terms involved in the present invention:

[0036] Digital orthophoto data DOM (Digital Orthophoto Map): It uses Digital Elevation Model (DEM) to carry out projection correction and mosaic on digital aerial photographs that have been scanned and processed pixel by pixel. The topographic map is based on the national basic scale. Crop the generated digital orthophoto dataset. It is an image with both map geometric accuracy and image characteristics, and has the advantages of high accuracy, rich information, intuitive and real.

[0037] Digital Elevation Model DEM (Digital Elevation Model): It is a data set of the plane coordinates (X, Y) and elevation (Z) of regular grid points in a certain range. It mainly describes the spatial distribution of regional landforms through contour Line or similar three-dimensional model is formed by data collection (including sampling and measurement), and then data interpolation. DEM is a

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Abstract

The invention discloses a power grid infrastructure construction checking method based on an airborne laser radar system. The high-precision three-dimensional power grid digital scene is realized; according to flexible setting, house demolition amount automatic checking, vegetation tree felling amount automatic checking, power grid line hidden danger automatic checking and engineering budget automatic checking in power grid infrastructure construction are carried out. The working efficiency is greatly improved; the technical scheme is generally characterized by comprising; constructing a three-dimensional digital power tower model; according to the three-dimensional digital electric power tower model, conducting wire sag fitting between towers; generating a power transmission line digitalelevation model DEM and power transmission line digital orthoimage data DOM; carrying out scene construction on the three-dimensional digital power tower model, the power transmission line digital elevation model DEM and the power transmission line digital orthoimage data DOM; the high-precision three-dimensional power grid digital scene is obtained, and in the high-precision three-dimensional power grid digital scene, the method is suitable for the power grid infrastructure construction checking method based on the three-dimensional digital model according to the setting automatic checking requirement.

Description

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Claims

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Application Information

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Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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