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A method and system for out-of-square detection based on machine vision

A technology of machine vision and off-square, applied in the direction of instruments, image analysis, image enhancement, etc., can solve problems such as failures in the rolling process, operational errors, etc., and achieve the effect of reducing safety hazards and labor intensity of workers

Active Publication Date: 2021-04-02
JIANGSU JINHENG INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a machine vision-based method and system for square billet detection, which can be used to solve the technical problem that manual detection of square billets in the prior art can easily lead to operational errors and lead to failures in the rolling process

Method used

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  • A method and system for out-of-square detection based on machine vision
  • A method and system for out-of-square detection based on machine vision
  • A method and system for out-of-square detection based on machine vision

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Embodiment Construction

[0078] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0079] Please refer to figure 1 , which exemplarily shows a structural schematic diagram of a billet production system applicable to the embodiment of the present application. Such as figure 1 As shown, the billet production system 1 includes production equipment 11 , a conveyor belt 12 , a steel fork 13 , a furnace-feeding roller table 14 and a heating furnace 15 .

[0080] Among them, the production equipment 11 is used to produce billets.

[0081] One end of the conveyor belt 12 is connected with the production equipment 11 , and the other end is connected with the roller table 14 for entering the furnace, and is used for transporting the billet produced by the production equipment 11 .

[0082] The steel fork is located be...

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Abstract

The present application provides a machine vision-based off-square detection method and detection system. A three-dimensional vision device is installed at the end of the furnace roller table, and the billet on the furnace roller table is photographed by the three-dimensional vision device to obtain the end face image of the billet, and the three-dimensional point cloud data is determined from the end face image of the billet, according to the three-dimensional point cloud Multiple ridges screened out in the data determine the pose of the billet; if the billet is in a normal pose, then determine the distance between the two intersecting ridges based on the 3D point cloud data of the point cloud in any two intersecting ridges. included angle; if the included angles all meet the first preset angle range, then it is determined that the steel billet is a qualified billet. Compared with the method of manually detecting stripped billets in the prior art, the embodiment of the present application realizes the detection of stripped billets through machine vision technology, and automatically rejects the identified stripped billets, reducing the labor intensity of workers, Reduce the potential safety hazards and improve the accuracy of billet detection.

Description

technical field [0001] The present application relates to the field of billet detection, in particular to a machine vision-based method and system for detecting square off. Background technique [0002] The steel rolling heating furnace occupies an important position in the iron and steel enterprises. Its task is to heat the steel slab so that the temperature and temperature distribution of the steel slab meet the rolling requirements. The feeding device of the heating furnace is a device for transporting the billet to the heating furnace. It is mainly composed of a feeding platform, a steel retaining hook, a steel fork and a conveying roller table. In the feeding blank, the square and rectangular steel billets evolve into a parallelogram, trapezoid or rhombus due to the four corners not forming 90°, which is called off-square billet. Billet stripping is always an important hidden danger affecting the heating and production of the heating furnace. Every year, accidents suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/70G06T7/10
CPCG06T7/0004G06T2207/10028G06T2207/30164G06T7/10G06T7/70
Inventor 朱正清孙茂杰李福存张楠徐宗立苏循亮汪光明周鼎
Owner JIANGSU JINHENG INFORMATION TECH CO LTD
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