Under the background of industry 4.0 era with intelligent manufacturing as the core, with the deepening of made in China 2025 strategy, the industrial intelligent robot industry market presents an explosive growth momentum, among which machine vision plays an important role in the role of industrial robot. So what kind of "insight" does machine vision give industrial robot? Can it greatly help industrial robot in the future To industrial automation, intelligent industry 4.0 development on the road to great success?
As the "brain central nervous system" of industrial robots, artificial intelligence has been in a sustained high-speed development stage in the past few years. Many industrial robots have also possessed quite high intelligent characteristics, but they are far from reaching the level of intelligence that human beings have imagined. If Rome is not built in a day, robots cannot become very intelligent at once.
The real realization of industrial automation requires highly intelligent industrial robots to replace part of human work. Obviously, if you want robots to replace human work well, the first thing to do is to make them "see". Not only that, we also need to see a lot of intelligent things in our daily life, including intelligence Drones and intelligent vacuum cleaners.
Of course, industrial robots are no exception. When industrial robots have the ability to observe things, they can judge things well, so as to be intelligent and flexible, and solve some problems by themselves. Moreover, under the great power of industry 4.0, the requirements of intelligent manufacturing for industrial robots are also higher and higher. The traditional robots that execute a specific action through programming will no longer be able to To meet the needs of the manufacturing industry to move forward.
Many times, we will need robots to be able to identify, analyze, process and other advanced functions, that is to say, we need to install a pair of "golden eyes" for industrial machines to replace human eyes for measurement and judgment. Machine vision is equivalent to installing "eyes" for industrial robots, so that they can clearly and indefatigably see objects and play the function of human eye inspection and detection This is very important in highly automated mass production.
The machine vision system can convert the captured object into image signal through the machine vision product, that is, the image capture device, and then transmit it to the special image processing system to obtain the shape information of the object. According to the pixel distribution, brightness, color and other information, the image system can convert these signals into digital signals, and then the image system will perform various operations on these signals to extract the characteristics of the target According to the result of discrimination, the equipment action on site is controlled.
Generally speaking, machine vision is to use computer to simulate human visual function. It has part of the function of human brain. It extracts information from the image of objective things, processes and understands it. Finally, it is used in industrial intelligent manufacturing for actual detection, measurement and control automation.
Intelligent manufacturing combines industrial robot and machine vision closely. Machine vision will be the next direction of artificial intelligence.
Machine vision is widely used in industry and has four main functions
1. Guidance and positioning, vision positioning requires that machine vision system can quickly and accurately find the part to be measured and confirm its position. Loading and unloading use machine vision to locate, guide the manipulator to grasp accurately.
In the field of semiconductor packaging, the device needs to adjust the pickup head according to the chip position information obtained by machine vision, accurately pick up the chip and bind it. This is the most basic application of visual positioning in the field of machine vision industry.
2. Appearance inspection: to detect the quality problems of products on the production line, which is also the link that takes the most place of labor. Machine vision is involved in the field of medicine, its main detection includes size detection, bottle body appearance defect detection, bottle shoulder defect detection, bottle mouth detection and so on.
3. High precision detection: the precision of some products is high, reaching 0.01-0.02 m or even u level, which cannot be detected by human eyes and must be completed by machine.
4. Recognition is to use machine vision to process, analyze and understand the image, so as to identify various targets and objects with different patterns. It can be used in auto parts, food, medicine and so on.
Generally speaking, the characteristics of machine vision system is to improve the flexibility and automation of production. Machine vision is often used to replace artificial vision in some dangerous working environment which is not suitable for manual operation or when artificial vision is difficult to meet the requirements. At the same time, in the process of mass industrial production, the efficiency and accuracy of product quality inspection with artificial vision are low, and the machine vision is used Sensory detection method can greatly improve the production efficiency and automation of production. Moreover, machine vision is easy to realize information integration, which is the basic technology of computer integrated manufacturing.
The rapid development of China's industrial robot industry has become the top of the world. The industrial upgrading demand of manufacturing industry to intelligent manufacturing development, the huge market scale of manufacturing industry, the promotion of made in China 2025 strategy and the layout of many industries have created the "favorable time, favorable place and harmonious people" for the development of industrial robots. All the big manufacturing companies are competing to lay out intelligent factories. It can be said that the development of robot industry has a strong rhythm, and the demand scale of the whole manufacturing industry is not allowed The development of industrial robot industry will provide many opportunities for the application of machine vision.
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