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Assembly type prefabricated part quality control method based on laser scanning point cloud

A quality control method and technology of prefabricated components, applied in the direction of using optical devices, measuring devices, computer parts, etc., can solve the problems of low efficiency and non-automation of quality management, and achieve the effect of reducing follow-up workload and difficulty

Pending Publication Date: 2021-02-05
江苏东印智慧工程技术研究院有限公司
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Problems solved by technology

[0005] Purpose of the invention: The purpose of the present invention is to provide a method for quality control of fabricated prefabricated components based on laser scanning point cloud to overcome the shortcomings of inefficient and non-automated quality management in the prior art

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  • Assembly type prefabricated part quality control method based on laser scanning point cloud
  • Assembly type prefabricated part quality control method based on laser scanning point cloud
  • Assembly type prefabricated part quality control method based on laser scanning point cloud

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Embodiment Construction

[0033]The technical solution of the present invention will be further described below.

[0034]The quality control method of fabricated prefabricated components based on laser scanning point cloud includes the following steps:

[0035]S1: Use laser scanner to obtain 3D point cloud data of prefabricated building components;

[0036]S2: Preprocess the obtained 3D point cloud data to remove noise and streamline the data volume of point cloud data;

[0037]S3: Perform further segmentation on the preprocessed point cloud data, extract the characteristic surface, and establish a surface mesh to lock the area where the quality problem occurs;

[0038]S4: Use the Delaunay triangle network and Alpha Shape algorithm to extract the characteristic data of the characteristic surface, and fit the extracted data to obtain the relevant quality parameters;

[0039]S5: Analyze and synthesize the obtained quality parameters combined with quality control requirements, and use the weighted scoring method to overall evalu...

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Abstract

The invention provides a method for acquiring surface quality information of a prefabricated part by using a laser scanning technology and automatically calculating quality data such as tapping, overall size, damage area and the like of the prefabricated part, which replaces a traditional manual measurement method, and calculates accurate production quality indexes so that stricter and more automatic production quality control is realized. Meanwhile, in order to unify evaluation standards, a production quality comprehensive evaluation system is provided in combination with domestic and overseas standards, and a basis is provided for production, evaluation and improvement of prefabricated parts.

Description

Technical field[0001]The invention relates to the technical field of civil engineering and surveying and mapping, in particular to a quality control method for assembled prefabricated components based on laser scanning point clouds.Background technique[0002]As a new technology of construction methods in the construction industry, prefabricated buildings are very different from the traditional cast-in-place buildings before. Through the production of building components in factory buildings, they participate in the construction of the building by transporting them to the construction site for hoisting. Due to the limitations of current technology and production conditions, it is temporarily unrealistic and uneconomical to completely replace the cast-in-place construction method. Therefore, in most cases, prefabricated components are required to be used in conjunction with cast-in-place construction.[0003]Since the production of prefabricated components is not on site, the possibility...

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Application Information

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IPC IPC(8): G06T7/521G06T7/00G06K9/62G06T17/20G01B11/24
CPCG06T7/521G06T7/0004G06T17/20G01B11/24G06T2207/10028G06T2207/20081G06T2207/30132G06T2200/08G06F18/24147
Inventor 张华康蕊
Owner 江苏东印智慧工程技术研究院有限公司