Learn about the working principle, characteristics, and application fields of machine vision in three minutes

    The so-called machine vision is to use a CCD camera to convert the detected target into an image signal, transmit it to a dedicated image processing system, and convert it into a digital signal according to the pixel distribution and brightness, color and other information, and the image processing system performs various operations on these signals to collect the characteristics of the target, such as area, quantity, position, length, and then outputs the result according to the preset allowable degree and other conditions. Including size, angle, number, pass/fail, have/no, etc., to achieve automatic identification function.

Machine Vision Features:

1. The camera takes pictures at a speed that automatically matches the speed of the object to be measured, and the ideal image is captured;

2. The size range of the parts is 2.4mm to 12mm, and the thickness can be different;

3. The system selects different sizes of workpieces according to the operator, calls the corresponding visual program for size detection, and outputs the results;

4. For parts of different sizes, the sorting device and the conveying device can accurately adjust the width of the forehearth, so that the parts can move on the fixed path and carry out visual inspection;

5. The resolution of the machine vision system reaches 2448×2048, and the dynamic detection accuracy can reach 0.02mm; 6. The rate of missed detection of waste products is 0;

7. The system can monitor the detection process by displaying the image, and can also dynamically view the detection results through the detection data displayed on the interface;

8. It has the function of timely and accurately sending out the rejection control signal and rejecting the waste product for the wrong workpiece;

9. The system can self-check whether the status of its main equipment is normal, equipped with a status indicator; At the same time, it can set different operation permissions for system maintenance personnel and users;

10. Real-time display detection screen, Chinese interface, you can browse the image of several nonconforming products, with the function of being able to store and view the wrong workpiece image in real time;

11. Error result information file, containing the corresponding error image, and can be printed.

Application areas of machine vision:

1. Identification

2. Decoding of standard one-dimensional code and two-dimensional code

3. Optical Character Recognition (OCR) and Confirmation (OCV)

4. Detection

5. Color and defect detection

6. Presence or absence of parts or components

7. Target position and direction detection and measurement

8. Size and capacity detection

9. Measurement of preset markers, such as the distance from hole position to hole position

10. Manipulator guidance

11. Output spatial coordinates to guide the manipulator to precise positioning