CN-121981973-A - Intelligent surface detection method and system for medium plate

Abstract

The invention discloses an intelligent surface detection method for a medium plate, which relates to the technical field of steel plate detection and comprises the steps of collecting image data of a steel plate to be detected, dividing the collected image data of the steel plate into a first detection area and a second detection area, presetting the first detection precision and the second detection precision of a detection model, carrying out defect detection on the image data of the first detection area by adopting the first detection precision, and carrying out defect detection on the second detection area by adopting the second detection precision. The invention can rapidly identify the head and tail block steel plates in the production of the medium plate, enhance the identification precision of key areas with high defects, effectively reduce the false detection rate of abnormal steel billets, further optimize the detection flow and improve the overall working efficiency on the basis of improving the identification accuracy of the defects and guaranteeing the surface quality of the steel plates.

Inventors

• JI YUN
• WANG SHENG
• QIN LIANGKAI

Assignees

• 南京钢铁股份有限公司

Dates

Publication Date

20260505

Application Date

20260107

Claims (7)

1. 1. The intelligent surface detection method for the medium plate is characterized by comprising the following steps of: Collecting image data of a steel plate to be detected; dividing the acquired steel plate image data into a first detection area and a second detection area; the method comprises the steps of presetting a first detection precision and a second detection precision of a detection model, carrying out defect detection on image data of a first detection area by adopting the first detection precision, and carrying out defect detection on a second detection area by adopting the second detection precision.
2. 2. The intelligent surface inspection method for a medium plate according to claim 1, wherein the first inspection area comprises a secondary head plate area, a secondary tail plate area and side areas on both sides of the rolled steel plate, and the second inspection area comprises a middle area of the rolled steel plate.
3. 3. The intelligent surface inspection method for a medium plate according to claim 2, wherein the first inspection area further comprises a head plate area, a tail plate area and side areas on both sides of the steel plate of the flat rolled steel plate, and the second inspection area further comprises a middle area of the flat rolled steel plate.
4. 4. The intelligent surface inspection method for a medium plate according to claim 3, wherein the first inspection area further includes all areas of the abnormal steel plate.
5. 5. The intelligent surface inspection method for a medium plate according to claim 1, wherein after the first inspection accuracy and the second inspection accuracy of the predetermined inspection model are set, and the image data of the first inspection area is inspected for defects with the first inspection accuracy, and the second inspection area is inspected for defects with the second inspection accuracy, further comprising: Outputting defect detection image data of the steel plate to be detected, and marking the detected mark.
6. 6. An intelligent surface inspection system for a medium plate, comprising: the data acquisition module is used for acquiring image data of the steel plate to be detected; the region dividing module is used for dividing the acquired steel plate image data into a first detection region and a second detection region; The defect detection module is used for presetting a first detection precision and a second detection precision of the detection model, carrying out defect detection on the image data of the first detection area by adopting the first detection precision, and carrying out defect detection on the second detection area by adopting the second detection precision.
7. 7. The intelligent surface inspection method for a medium plate according to claim 6, further comprising a data output module for outputting defect inspection image data of the steel plate to be inspected and labeling inspected marks.

Description

Intelligent surface detection method and system for medium plate Technical Field The invention relates to the technical field of steel plate inspection, in particular to an intelligent surface detection method and system for a medium plate. Background In the production process of the medium plate, the conventional intelligent meter inspection algorithm equipment for the medium plate has obvious technical limitations due to the influence of objective factors with faster production rhythm, and has the core problems that the steel plate head and tail plates and abnormal blanks in the production link cannot be accurately identified, so that the detection result cannot be matched with the dual requirements of actual production on efficiency and quality, the actual requirements of high-efficiency production scheduling and strict quality control of enterprises are difficult to meet, and the smooth promotion of the subsequent production flow and the stable guarantee of the product quality are restricted. Disclosure of Invention The invention aims to solve the technical problem of overcoming the defects of the prior art and providing an intelligent surface detection method and system for a medium plate. In order to solve the technical problems, the technical scheme of the invention is as follows: an intelligent surface detection method for a medium plate, comprising: Collecting image data of a steel plate to be detected; dividing the acquired steel plate image data into a first detection area and a second detection area; the method comprises the steps of presetting a first detection precision and a second detection precision of a detection model, carrying out defect detection on image data of a first detection area by adopting the first detection precision, and carrying out defect detection on a second detection area by adopting the second detection precision. As a preferable scheme of the intelligent surface detection method for the medium plate, the first detection area comprises a secondary head plate area, a secondary tail plate area and side areas on two sides of the rolled steel plate, and the second detection area comprises a middle area of the rolled steel plate. As a preferable scheme of the intelligent surface detection method for the medium plate, the first detection area further comprises a head plate area, a tail plate area and side areas on two sides of the steel plate of the flat rolled steel plate, and the second detection area further comprises a middle area of the flat rolled steel plate. As a preferable scheme of the intelligent surface detection method for the medium plate, the first detection area further comprises all areas of the abnormal steel plate. The intelligent surface detection method for the medium plate, which is a preferable scheme of the invention, comprises the steps of after the first detection precision and the second detection precision of the preset detection model are adopted to detect the defects of the image data of the first detection area, and the second detection precision is adopted to detect the defects of the second detection area, further comprises the following steps: Outputting defect detection image data of the steel plate to be detected, and marking the detected mark. The invention also provides an intelligent surface detection system for the medium plate, which is characterized by comprising the following steps: the data acquisition module is used for acquiring image data of the steel plate to be detected; the region dividing module is used for dividing the acquired steel plate image data into a first detection region and a second detection region; The defect detection module is used for presetting a first detection precision and a second detection precision of the detection model, carrying out defect detection on the image data of the first detection area by adopting the first detection precision, and carrying out defect detection on the second detection area by adopting the second detection precision. As an optimal scheme of the intelligent surface detection system for the medium plate, the intelligent surface detection system for the medium plate further comprises a data output module, wherein the data output module is used for outputting defect detection image data of the steel plate to be detected and labeling detected marks. The beneficial effects of the invention are as follows: (1) The invention divides the detection areas of the steel plate, adopts different detection precision to detect different detection areas, enhances the identification precision of key areas with high defects, and ensures the accuracy of defect identification. (2) According to the invention, all areas of the abnormal steel plate are divided into the first detection areas, so that the false detection rate of the abnormal steel plate is effectively reduced, the detection flow is further optimized on the basis of improving the defect identification accuracy and guaranteeing the surfac