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Multi-rate detection method of high temperature steel billet motion state based on machine vision

A motion state and machine vision technology, applied in the field of measurement and control, to achieve good matching, miniaturization, and reduction of computation.

Active Publication Date: 2017-09-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is still no effective and feasible method for how to use machine vision to automatically collect images and detect the motion state of billets in motion.

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  • Multi-rate detection method of high temperature steel billet motion state based on machine vision
  • Multi-rate detection method of high temperature steel billet motion state based on machine vision
  • Multi-rate detection method of high temperature steel billet motion state based on machine vision

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Embodiment Construction

[0047] In order to describe the present invention more specifically, a vision-based multi-rate detection method for high-temperature steel slab motion states of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] Such as figure 1 As shown, a vision-based multi-rate detection method for high-temperature billet motion state includes the following steps:

[0049] Step 1. Each section sets the sampling frequency of the image and the physical size corresponding to the unit pixel of the image through calibration.

[0050] In the current embodiment, an image acquisition system that works in parallel with two threads is constructed, each thread controls a camera to collect images of corresponding sections and calculates them, and each section sets a corresponding sampling frequency f through calibration i And the physical size M corresponding to the unit pixel i .

[0051] Such as figure 2 As sho...

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Abstract

The invention discloses a multi-rate detection method based on machine vision for the motion state of a high-temperature billet, which includes the following steps: firstly, constructing an image acquisition system with multiple threads working in parallel, each thread controls a camera to collect images of corresponding sections and For calculation, each section sets its own sampling frequency and the physical size corresponding to the unit pixel of the image through calibration; then, each section collects images, extracts feature information, and calculates the motion state according to the set sampling frequency. The invention is based on the machine vision technology, does not contact with the measured object, and solves the problem that the traditional mechanical contact device is difficult to measure the high-temperature object.

Description

technical field [0001] The invention relates to the technical field of measurement and control, in particular to a machine vision-based multi-rate detection method for the motion state of a high-temperature billet. Background technique [0002] In the iron and steel industry, the high-intensity hot continuous rolling integrated automatic production mode is widely respected at home and abroad. The high-temperature steel billet from the continuous casting machine directly enters the continuous rolling unit after being warmed and soaked by the online heating equipment. During the transmission process of the high-temperature steel billet, if the phenomenon of steel jamming occurs, it will cause serious consequences (such as the melting of the steel billet, etc.), so it is necessary to detect whether the motion state is still and alarm processing; in addition, in order to realize the heating and rolling For precise control, it is also necessary to detect and control the motion sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/38
Inventor 毛维杰陈凯
Owner ZHEJIANG UNIV