Track plate defect online detection system and detection method based on three-dimensional laser scanning

A three-dimensional laser, detection system technology, applied in the direction of optical testing flaws/defects, measuring devices, using optical devices, etc., can solve the problems of low accuracy and slow detection of track plate defects, and achieve accurate detection, simple structure, and easy operation. Simple and fast effects

Pending Publication Date: 2022-04-22
XIAN UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide an online track slab defect detection system based on three-dimensional laser scanning, which is applied to the track slab defect detection after the demoulding process, and overcomes the shortcomings of the traditional track slab defect detection speed and low accuracy

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  • Track plate defect online detection system and detection method based on three-dimensional laser scanning

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Embodiment Construction

[0025] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The present invention is based on a three-dimensional laser scanning track plate defect online detection system, through the trolley uniform speed movement after the release of the track plate for detection, including data acquisition module, data processing module, human-computer interaction module and signal input and output module;

[0027] The data acquisition module includes a line laser profile sensor, and the line laser profile sensor relies on the active light source emitted by itself to scan the track plate surface when it moves at a uniform speed with the trolley, and collects the three-dimensional point cloud data on the track plate surface;

[0028] The data processing module includes a host computer PC, the host computer PC is set up with a human-computer interaction module and an image processing module, the human-computer interac...

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Abstract

The invention discloses a track plate defect online detection system based on three-dimensional laser scanning, which comprises a data acquisition module, a data processing module, a man-machine interaction module and a signal input and output module, is applied to track plate defect detection after a demolding process, and overcomes the defects of low speed and low accuracy of traditional track plate defect detection. The invention further discloses a track plate defect detection method based on three-dimensional laser scanning, after the track plate is demolded, the track plate is conveyed by the trolley to enter a code spraying procedure, the trolley moves at a constant speed on a production line, and the non-contact line laser contour sensor is adopted to scan the surface of the track plate in the conveying process; each piece of collected point cloud data is accurately registered with a standard three-dimensional model of the track plate, so that the position of the defect is quickly judged and positioned; according to the method, the production takt of the track plate is not affected, the defect detection of the track plate is completed only in the two-process transmission process, and the method is accurate in detection and high in detection efficiency.

Description

Technical field [0001] The present invention belongs to the field of automatic online detection technology for defects, relates to an online detection system for track plate defects based on three-dimensional laser scanning, and also to a track plate defect detection method based on three-dimensional laser scanning. Background [0002] Since entering the 21st century, with the development of intercity rail transit technology, the speed of high-speed rail and subway has become faster and faster, and the manufacturing quality and accuracy requirements of ballastless track slabs used in high-speed rail and subway have also been greatly improved. Among them, CRTIII type high-speed rail ballastless track plate is a track plate with independent research and development intellectual property rights in China, and its production process adopts the pre-tensioning method to reduce the generation of prestress, through the clearance of molds, spraying release agents, installation of embedded...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01B11/24
CPCG01N21/8851G01B11/24G01N2021/8887
Inventor 李淑娟马雪姣王嘉宾任朋欣王久峰薛丁丹赵智渊
Owner XIAN UNIV OF TECH
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