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A Particle Swarm Optimization Algorithm-Based Automatic Mold Closing Method of Prefabricated Component Point Cloud

A technology of particle swarm algorithm and prefabricated components, which is applied in the field of construction safety management, can solve problems such as unreliable mold closing results, and achieve the effect of solving unreliability and uncertainty and accurate mold closing results

Active Publication Date: 2021-04-27
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the current stage, the process of mold-closing detection needs to manually specify the pairing points. Due to the result of artificial selection, there are errors in the matching points themselves, which will make the mold-closing results even more unreliable.

Method used

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  • A Particle Swarm Optimization Algorithm-Based Automatic Mold Closing Method of Prefabricated Component Point Cloud
  • A Particle Swarm Optimization Algorithm-Based Automatic Mold Closing Method of Prefabricated Component Point Cloud
  • A Particle Swarm Optimization Algorithm-Based Automatic Mold Closing Method of Prefabricated Component Point Cloud

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Experimental program
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Embodiment 1

[0038] see figure 1 , this embodiment discloses a prefabricated component based on particle swarm optimization algorithm for the problems of low degree of automation, low reliability of results, and inoperability when the number of detections is large in the existing prefabricated component mold closing detection technology. The point cloud automatic mold clamping method comprises the following steps:

[0039] 1) Input the point cloud data of prefabricated components.

[0040] 2) In the BIM database, find the corresponding BIM design model of the prefabricated components, and convert the BIM design model into the desired point cloud.

[0041] 3) see figure 2 , discrete BIM design model, obtain the outline point set of BIM design model. Among them, 2a is the point cloud data of the concrete exterior wall panel, and 2b is the point set of the outer contour of the BIM model.

[0042] 4) Use the Max Leverage (maximum leverage) resampling algorithm to resample the BIM model ou...

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Abstract

The invention provides a prefabricated component point cloud automatic mold closing method based on particle swarm algorithm. The automatic mold closing method includes the steps of inputting prefabricated component point cloud, corresponding BIM model retrieval, discrete extraction of contour point cloud data of BIM model, resampling, rough matching judgment, classification of important parts of BIM model, matching point search and pairing, spatial position optimization and other steps. The invention provides a technical method for automatically matching the prefabricated component point cloud with the BIM design model, which effectively solves the problem that a large amount of human intervention is required for prefabricated components to be matched with the BIM model during quality inspection, and provides a basis for later dimension data estimation. method support.

Description

technical field [0001] The invention relates to the field of building safety management, in particular to a particle swarm algorithm-based automatic mold-closing method for point clouds of prefabricated components. Background technique [0002] In the prefabricated construction industry, in order to ensure the successful installation of prefabricated components at the construction site, strict quality inspections are required before transportation. The quality inspection method currently used is the traditional manual measurement method. Manual measurement of prefabricated components has obvious disadvantages, such as: large personnel consumption, high time and money costs during the detection process, and once the workload is too large, it is easy to cause human detection errors. Therefore, when faced with a large number of prefabricated components and complex component forms, the use of three-dimensional laser scanning measurement technology can effectively solve these pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/25G06F30/13G06Q10/06G06Q50/08G06N3/00
CPCG06Q10/06395G06Q50/08
Inventor 冯亮刘界鹏李东声
Owner CHONGQING UNIV
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