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Bending detection method for bar steel material

A detection method and technology for steel materials, applied in the field of computer vision and image detection, can solve problems such as damage to conveying equipment, waste of time and manpower and material resources, equipment failure and damage, and achieve the effect of avoiding subsequent accidents.

Pending Publication Date: 2021-06-11
南京耘瞳科技有限公司 +1
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AI Technical Summary

Problems solved by technology

[0002] The rolled bar steel material will be bent and deformed during processing or conveying, which will cause damage to the subsequent conveying equipment. When the bent steel material is sent into the heating furnace, steel jamming may occur, due to The temperature of the heating furnace is extremely high, and it is difficult to remove the jammed steel, which will seriously waste time, manpower and material resources, and even cause equipment failure and damage

Method used

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  • Bending detection method for bar steel material
  • Bending detection method for bar steel material
  • Bending detection method for bar steel material

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Embodiment Construction

[0039] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, the present invention is a kind of bar steel bending detection method, comprises the following steps:

[0041] Step S1: Fix a high-temperature-resistant network camera above the bar and steel to collect images of the steel on the conveyor belt in real time;

[0042] Since the detection environment is located next to the heating furnace, the ambient temperature is relatively high. In order not to affect the image collection effect, the DS-NXCN3A204 CMOS starlight-grade high-temperature resistant air-cooled cylindrical network camera is used to collect images. When the steel material is bent, there will be at least one surface (two side edges) are bent, so it is only necessary to detect three of the four side edges to determine whether the steel material is bent. edge) can be completely located within the field...

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Abstract

The invention discloses a bending detection method for bar steel material, which comprises the following steps of: shooting a bar material on a conveyor belt to be fed into a heating furnace in real time by using a high-temperature-resistant camera, segmenting an image of the steel material in real time by using a segmentation network based on deep learning, and detecting boundary characteristics of the steel material on the segmented steel material image through an edge detection algorithm to extract three side edge features, judging whether the steel material is bent or not according to the side edge features to prevent the bent steel material from being fed into the heating furnace so that automatic bar steel material bending detection is achieved, and the problem that the bent steel material enters the heating furnace to cause steel clamping is solved.

Description

technical field [0001] The invention belongs to the technical field of computer vision and image detection, and in particular relates to a method and device for detecting bending of bar steel. Background technique [0002] The rolled bar steel material will be bent and deformed during processing or transportation, which will cause damage to the subsequent conveying equipment. When the bent steel material is sent into the heating furnace, steel jamming may occur, due to The temperature of the heating furnace is extremely high, and it is difficult to take out the jammed steel, which will seriously waste time, manpower and material resources, and even cause equipment failure and damage. Therefore, before the steel material is transported to the heating furnace, it is necessary to measure the bending of the steel material. When it is detected that the steel material is bent beyond a certain level, the conveyor belt is prevented from continuing to be conveyed, and an alarm is sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/13G06T7/11G06K9/46G06N3/04G06N3/08
CPCG06T7/0004G06T7/13G06T7/11G06N3/04G06N3/08G06T2207/20081G06V10/44
Inventor 李桂东
Owner 南京耘瞳科技有限公司
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