Online detection system for surface defects of coldly-rolled aluminum plate and detection method of online detection system

Abstract

The invention relates to the technical field of high-speed detection for surface defects of an aluminum plate and particularly discloses an online detection system for surface defects of a coldly-rolled aluminum plate and a detection method of the online detection system. The online detection system for the surface defects of the coldly-rolled aluminum plate comprises an aluminum plate production line and is characterized in that LED (Light Emitting Diode) light sources and high-speed camera arrays which are arrayed transversely in parallel are mounted on the upper and lower sides of the aluminum plate production line; each high-speed camera array is composed of a plurality of paths of linear array CCD (Charge Coupled Device) cameras; each path of the camera is connected with a respective corresponding industrial personal computer processor through a GigE interface; an Ethernet interface control unit in each industrial personal computer processor is connected to a switchboard through a kilomega network and is connected to a central server or a field computer by an Ethernet switchboard. According to the online detection system provided by the invention, rapid acquisition of defect images is realized by connecting the linear array CCD cameras by the GigE interfaces and the Ethernet; the industrial personal computer processors are used for realizing rapid detection and positioning for the defects of the aluminum plate so as to effectively prevent data from being blocked.

Description

(1) Technical field [0001] The invention relates to the technical field of high-speed detection of surface defects of aluminum plates, in particular to an on-line detection system and detection method for surface defects of cold-rolled aluminum plates. (2) Background technology [0002] In recent years, the aluminum processing industry has risen rapidly in China, and the products of enterprises have gradually become high-end. Aluminum plates that require high surface quality for aircraft, automobiles, and high-end electronic products have become popular. However, the surface quality of aluminum plates is very serious. The detection method of the aluminum plate is mainly through the naked eye manual detection method. Visual inspection is prone to high false detection and missed detection rates, especially now that the production line speed is getting faster and faster, it is difficult for this detection method to meet production requirements. [0003] With the developmen...

AI Technical Summary

Problems solved by technology

However, during the detection process, all processing operations such as defect image collection, preprocessing, and defect judgment are completed by this single processor in coordination with cameras and other equipment, which makes the processor transportation load larger, and once the processing equipment has problems, There is no backup measure to continue to ensure the monitoring, so it is difficult to meet the stable and high-speed detection requirements and quality assurance of the production line with this solution

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