Machine vision is the use of machines instead of human eyes for measurement and judgment. It is to use machines instead of human eyes to make measurements and judgments. Machine vision system The machine vision system refers to converting the ingested target into an image signal through machine vision products (ie, image capture device, which is divided into CMOS and CCD), and sending it to a dedicated machine vision product (ie, image capture device, There are two types of CMOS and CCD) to convert the captured object into an image signal, and send it to a dedicated image processing system. The image processing system converts it into a digital signal according to the pixel distribution, brightness, color and other information; Operation to extract the features of the target, and then control the on-site equipment action according to the result of the discrimination. According to the pixel distribution, brightness, color and other information, it is converted into digital signals; the image system performs various operations on these signals to extract the characteristics of the target, and then controls the on-site equipment actions according to the results of the discrimination.

Machine Vision System Machine vision system is characterized by improving the flexibility and automation of production. Some notable features are to improve the flexibility and automation of production. In some dangerous working environments where people are not suitable for manual work or where artificial vision is difficult to meet the requirements, the dangerous working environment of common work industries or where artificial vision is difficult to meet the requirements Occasionally, machine vision is often used to replace artificial vision; at the same time, it is used to replace artificial vision in large quantities; at the same time, in the industrial production process of mass industrial production, artificial vision is used to check product quality with low efficiency and low precision. Can greatly improve production efficiency and production automation. Moreover, in the process, using manual vision to check product quality is low in efficiency and accuracy, and using machine vision inspection methods can greatly improve production efficiency and production automation. Moreover, machine vision is easy to realize and easy to realize information integration. Information integration is the basic technology for realizing computer integrated manufacturing and computer integrated manufacturing.

At present, the machine vision inspection system includes lighting system, lens, camera system and image processing system. For each industry application, the configuration of machine vision-related system equipment needs to consider the operating speed, image processing speed, whether the camera is color or black and white, whether the detection target is a size or a defect, how large the field of view needs to be, how high the resolution needs to be, and how much the contrast ratio needs to be. and many more.

The detection accuracy of the machine vision system is high, and it can quickly acquire a large amount of information and process it automatically. Therefore, this technology is widely used in the field of industrial inspection. For the traditional manual-intensive inspection mode, the machine vision system can replace a large number of inspection workers, and upgrade the inspection mode of "simple tools for human eyes" to high-precision and fast automatic inspection results. It is precisely because the machine vision system can quickly obtain a large amount of information, and is easy to automatically process and integrate information. Therefore, in the modern automated production process, people use the machine vision system widely for assembly positioning, product quality inspection, product identification, product size, etc. measurement etc.

 (Source: Industrial Control Network (Hundred Stations))