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Power transmission line engineering construction progress monitoring method based on three-dimensional model comparison

A transmission line, three-dimensional model technology, applied in 3D modeling, character and pattern recognition, image data processing and other directions, can solve the problems of subjective analysis errors, waste of energy and other problems of staff, achieve good application prospects, improve quality and efficiency, Visualization and highly automated effects

Pending Publication Date: 2021-03-05
STATE GRID JIANGSU ELECTRIC POWER ENG CONSULTING CO LTD +1
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Problems solved by technology

This construction progress monitoring method not only consumes a lot of energy of the staff, but also is prone to errors in the subjective analysis of the staff. Therefore, it is urgent to introduce new methods and new technologies to improve the status quo of transmission line project construction progress monitoring

Method used

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  • Power transmission line engineering construction progress monitoring method based on three-dimensional model comparison
  • Power transmission line engineering construction progress monitoring method based on three-dimensional model comparison
  • Power transmission line engineering construction progress monitoring method based on three-dimensional model comparison

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Embodiment

[0101] Such as figure 1 As shown, the method for monitoring the construction progress of the transmission line project based on the comparison of three-dimensional models in this embodiment includes the following steps:

[0102] (1) The laser point cloud data in LAS format obtained by scanning needs to be filtered to remove noise points first, and then filter out ground object points through point cloud classification to realize the extraction of laser point cloud models of power transmission lines. The process is as follows figure 2 As shown, step (1) includes the following steps:

[0103] 1-1) Input the original point cloud data of the transmission line construction site in LAS format, and use the statistical analysis method to filter out outliers (to prevent noise points from affecting the accuracy of the data);

[0104] 1-2) According to the LAS specification issued by the American Society for Photogrammetry and Remote Sensing, in the point cloud in LAS format, the class...

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Abstract

The invention discloses a power transmission line engineering construction progress monitoring method based on three-dimensional model comparison. The power transmission line engineering constructionprogress monitoring method comprises the following steps: firstly, performing point cloud filtering on LAS format laser point cloud data obtained by scanning to remove noise points; converting the GIMdesign model into a GIM point cloud model to provide a data basis for matching and comparative analysis among subsequent models; then adopting a point cloud registration algorithm to realize accuratesuperposition between the power transmission line GIM point cloud model and the laser point cloud model; and finally, realizing transmission line engineering construction progress monitoring according to difference analysis between the transmission line GIM point cloud model and the laser point cloud model. According to the method, the defects of high operation intensity, high error rate and thelike in the current construction progress monitoring are effectively improved, the method has the advantages of three-dimensional visualization, high automation degree and the like, and the fusion application of the BIM technology and the three-dimensional laser point cloud technology in the field of power transmission and transformation engineering construction is promoted.

Description

technical field [0001] The invention relates to the field of power transmission and transformation project construction, in particular to a method for monitoring the construction progress of a power transmission line project based on three-dimensional model comparison. Background technique [0002] With the increasing scale of transmission line construction year by year, my country's quality and efficiency requirements for transmission line engineering construction are also getting higher and higher, and effective construction progress monitoring methods are an important way to improve the quality and efficiency of transmission line engineering construction. At present, the construction progress monitoring of transmission line projects is still mainly based on manual monitoring. The staff first search for the 2D drawing information of the corresponding position, and build a corresponding 3D model in their minds, and then superimpose the model on what the staff sees at the mom...

Claims

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Application Information

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IPC IPC(8): G06F30/18G06T5/00G06T7/10G06T7/33G06T17/00G06K9/62
CPCG06F30/18G06T7/10G06T7/344G06T17/00G06T2207/10028G06T2207/20024G06T2207/30184G06F18/23213G06T5/70Y04S10/50
Inventor 杜长青陈兵俞越中孙铭泽袁星陈锋王子涵
Owner STATE GRID JIANGSU ELECTRIC POWER ENG CONSULTING CO LTD
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