Prefabricated part point cloud automatic mold closing method based on particle swarm optimization variable domain search pairing points

A particle swarm algorithm and prefabricated component technology, applied in the field of building 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: 2019-11-26
CHONGQING UNIV
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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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  • Prefabricated part point cloud automatic mold closing method based on particle swarm optimization variable domain search pairing points
  • Prefabricated part point cloud automatic mold closing method based on particle swarm optimization variable domain search pairing points
  • Prefabricated part point cloud automatic mold closing method based on particle swarm optimization variable domain search pairing points

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Embodiment 1

[0040] see figure 1 , this embodiment discloses a variable domain search based on the particle swarm optimization algorithm for the problems of low automation, low reliability of results, and inoperability when the number of detections is large in the existing prefabricated component mold closing detection technology. The automatic mold clamping method of the prefabricated component point cloud of paired points comprises the following steps:

[0041] 1) Input the point cloud data of prefabricated components.

[0042] 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.

[0043] 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.

[0044] 4) Use the Max Leverage (maximum leverage) resampli...

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Abstract

The invention provides a prefabricated part point cloud automatic mold closing method based on particle swarm optimization variable domain search matching points. The prefabricated part point cloud automatic mold closing method comprises the steps: inputting prefabricated part point cloud, retrieving a corresponding BIM model, discretely extracting contour point cloud data by the BIM model, re-sampling, roughly matching and judging, grading important parts of the BIM model, searching and pairing matching points, optimizing a spatial position and the like. The invention provides a technical method for automatically carrying out mold closing by the prefabricated part point cloud and the BIM design model, effectively solving the problem that a large amount of human intervention is needed forassembling the prefabricated part point cloud and the BIM design model during quality detection, and providing method support for later size data estimation.

Description

technical field [0001] The invention relates to the field of building safety management, in particular to a prefabricated component point cloud automatic mold-closing method based on particle swarm algorithm variable domain search pairing points. 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 technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q10/06G06Q50/08
CPCG06Q10/06395G06Q50/08
Inventor 冯亮刘界鹏李东声
Owner CHONGQING UNIV
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