Product quality inspection is an indispensable link before listing. There are many disadvantages in traditional quality inspection, and the qualified rate of quality inspection is also low. Product quality inspection based on visual inspection system technology is used in quality control by more and more enterprises. In particular, some work in high temperature, dust, vibration environment will cause a certain degree of harm to the human body, and the machine vision detection system can effectively solve this problem.
In the process of product quality inspection based on visual inspection system technology, the main technologies are as follows:
Light source lighting technology: feature extraction, stability, uniformity, color temperature, spectrum;
Photoelectric conversion: CCD, CMOS, SNR, pixel size, linear array, area array;
Image data transmission: camlink, USB, Ethernet, 1394;
Data acquisition and synchronous control;
Image correction technology: flat field correction, dark field correction, color correction, distortion correction, multi camera consistency correction;
Image processing algorithm: positioning, blob analysis, dynamic mask;
In the process of visual automatic detection, for each kind of image, it is necessary to analyze and comprehensively consider various means to process to achieve the effect. Generally speaking, the gray value of the defective part is darker than that of the surrounding normal part, that is, the gray value of the defective part is smaller; moreover, most of them are on smooth surface, so the gray change of the whole picture is generally very uniform, lacking of texture features. That is to say, the defect detection generally uses the method of statistical gray level feature or threshold segmentation to mark the defect part.
Shandong Hongbao Automation Co., Ltd. is a high-tech enterprise integrating R & D, production, sales and service of automatic detection equipment and online detection equipment. It has served the field of machine vision for many years, effectively helping production enterprises to achieve harsh production and packaging objectives and ensure the quality and safety of products. Such as magnetic tile defect visual inspection system, according to customer demand, detect the surface of magnetic products, such as scratches, cracks, pinholes, sticky powder, grooves, etc.
Visual inspection technology plays an important role in industry 4.0 automation, which can not only effectively improve the production efficiency, but also improve the quality of products. Based on rich experience in automation industry, Shandong Hongbao Automation Co., Ltd. develops advanced visual inspection technology solutions for enterprise customers.