英文内容
Machine vision, a branch of artificial intelligence, is developing rapidly.In short, machine vision is to use machines to replace human eyes to measure and judge.Computer vision system is through the machine vision products to absorb the object into the image signal, the image system through the various operations of the image signal to extract the characteristics of the object, and then according to the recognition results to control the action of the equipment in the scene.Machine vision are essential to realize the industrial automation and intelligent method, equivalent to an extension of the visual on the machines, machine vision has a high degree of automation, high efficiency, high precision and strong ability to adapt to bad environment etc, and today is to introduce the five application advantages of machine vision in industrial automation
1. Guidance and orientation
Visual positioning requires that the machine vision system can quickly and accurately find the part under test and determine its position. The loading and unloading is positioned by machine vision, and the manipulator is guided to grasp accurately.
Robot guidance and localization are the most common application scenarios for the combination of machine vision and robot.The position guidance of the robot can be roughly divided into three modes: the camera is mounted on the frame and does not follow the movement of the robot
Fixed camera mode means that the camera is installed on the equipment frame and does not move with the movement of the robot. From left to right, it is divided into grasping conditions, grasping offset correction conditions and grasping positioning conditions.In the grasping condition, the camera takes pictures of the transmitted materials and roughly locates them, and the positioning information is transmitted to the robot, so that the robot can grasp the incoming materials according to the positioning information. In this way, the accuracy requirement of transmission mechanism between stations can be reduced and the stability of grasping can be guaranteed.
The active camera mode means that the camera is installed on the top of the manipulator and moves together with the manipulator.Although different from the fixed camera mode mentioned above, the fixed camera mode and the mobile camera mode have the same functional path, both of which can realize positioning capture and guided placement.These two systems guarantee the function at the same time, but also can provide more installation opportunities to adapt to different environments and hardware conditions
In order to improve the adaptability of the hardware installation, the fixed camera mode and the mobile camera mode are combined. For different equipment installation scenarios, the fixed camera mode and the mobile camera mode can be combined
2. Appearance inspection test
production
3. Accurate detection
Some products have high precision, up to 0.01~0.02 m, or even up to U grade, human eyes can not be detected by machine.In the production and life, each product needs to be inspected, the need for inspection certificate, to say that inspection is the most widely used in machine vision, should be no one will have an opinion.In the past, the development of machine vision is slow, and the artificial naked eye detection often encountered many problems, such as low accuracy rate, prone to errors, unable to work continuously, easy fatigue, time-consuming and laborious.The extensive application of computer vision makes the production and detection of products into a high degree of automation.
4. The identity
image
5. Object classification
Target sorting application in the machine vision application link, is established in a link after recognition and detection, through the machine vision system for target image processing, combined with the use of manipulator to achieve product sorting.In the old assembly line, materials were manually placed into the injection machine, and then the next process was carried out.Now the use of automatic equipment material, which uses machine vision system to grab the image of the product, image analysis, output results, and then through the robot, the corresponding material, placed in a fixed position, so as to achieve the intelligent, modern, automation of industrial production.
An overview of the
With the development of industry and the arrival of the era of Industry 4.0, the intellectualization of machines has gradually become a reality.Especially in recent years, the development of machine vision technology in industrial automation, the continuous update and iteration of visual technology, so that its position in intelligent manufacturing is increasingly prominent, but also led to the progress of industrial automation, artificial intelligence, intelligent manufacturing and other fields, for the development of various fields into a strong impetus.
