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An online intelligent identification and detection system and detection method for steel strip surface defects

An intelligent identification and detection method technology, applied in image analysis, instruments, calculations, etc., can solve the problem of single detection means of strip steel surface defect detection technology, achieve precise classification accuracy, eliminate imaging interference, and optimize acquisition and imaging effect of technology

Inactive Publication Date: 2018-08-03
刘强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the present invention provides an online intelligent identification and detection method for strip surface defects with real-time detection, precise classification and high accuracy for the technical problems to be solved. The problem of a single detection method in the technology

Method used

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  • An online intelligent identification and detection system and detection method for steel strip surface defects
  • An online intelligent identification and detection system and detection method for steel strip surface defects
  • An online intelligent identification and detection system and detection method for steel strip surface defects

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Embodiment 1

[0034] figure 1 It is a flow chart of target sample simulation training and defect detection and identification in this embodiment. The online intelligent identification and detection method for steel strip surface defects comprises the following steps,

[0035] Step 101 The light source irradiates the upper and lower surfaces of the steel strip, and the original image of the surface of the steel strip is collected by a high-speed linear array CCD, and the collected original defect image is converted into digital information and then transmitted to the image processor;

[0036] The identification and detection method of this embodiment optimizes the collection and imaging technology of defect images, adopts the image imaging method of high-speed line array camera and linear monochromatic light source, and can collect clear defect images; at the same time, the optical correction function based on statistics can effectively eliminate defects The interference of the external env...

Embodiment 2

[0051] Figure 4 It is a working principle diagram of the online intelligent identification and detection system for steel strip surface defects in this embodiment. The system including the system of this embodiment is divided into four levels: an imaging acquisition system, a detection and identification system, a control service system, and a quality inspection browsing system.

[0052] Among them, the acquisition system includes lighting system, imaging system, mechanical structure and three-proof system. The detection and identification system includes several defect detection computers. The detection and identification system controls the light source, camera control and system status monitoring of the imaging acquisition system. Data collection and transmission. The detection and recognition system detects and recognizes defects through head and tail detection, weld detection, hardware control, defect detection, defect filtering, defect merging, defect classification, d...

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Abstract

The invention provides an online intelligent identification and detection method for steel strip surface defects, including image acquisition, feature extraction, multi-level defect detection identification and result output and other steps; the invention also provides an online intelligent identification and detection system for steel surface defects , including encoders, linear LED light sources, high-speed linear array CCD cameras, image processors, testing computers, server computers, quality inspection computers and printers. The detection system and detection method of the present invention optimize the collection and imaging technology of defect images, can collect clear defect images, and improve the processing technology of defect images, which can completely and effectively extract the image features in the image, A multi-level defect detection and identification method including primary defect detection and identification, secondary defect detection and identification and SVM identification is designed, which overcomes the problem of single detection means in the prior art, and detects various types of strip defects with real-time detection and accuracy Advantages of classification and high accuracy.

Description

technical field [0001] The invention relates to an online detection technology for surface quality information of a cold-rolled steel plate, in particular to an online intelligent identification and detection system and a detection method for surface defects of a strip steel. Background technique [0002] my country is a big country of steel production. Strip steel has become an indispensable raw material for automobile production, machinery manufacturing, chemical industry, aerospace, shipbuilding and other industries due to its wide range of applications. play a decisive role. The strip steel preparation process is divided into cold-rolled strip steel process and hot-rolled strip steel process. Among them, the cold-rolled strip steel process includes: pickling, rolling, annealing, synchronous lubrication of the rolled size, anti-rust oil, leveling and sizing, polishing and packaging; the hot-rolled strip steel process includes: heating furnace, dephosphorization machine, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
Inventor 刘强
Owner 刘强
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