Briefly describe the working process of a complete machine vision system

The machine vision system consists of the following accessories:
1. Camera: black and white smart camera, line scan smart camera, color smart camera, CMOS smart camera, code reader, etc.; 2.
Board: black and white image capture card, image compression/decompression Boards, color capture cards, 1394 interface boards, image processing boards, etc.;
3. Software packages: image processing software, machine vision tool software;
4. Industrial cameras: cmos cameras, CCD color cameras, area scan cameras, CAMERA-LINK camera, line scan camera, infrared camera, high-speed camera, 1394 interface camera;
5. Industrial lens: camera lens, magnifying glass, high-resolution lens, image scanning lens, condenser lens, telescope, camera lens
6 .Light source: LED light source, xenon lighting system, ultraviolet lighting system, infrared light source, fiber optic lighting system, fluorescent lighting system; 7.
Auxiliary products: calibration block, grating, enclosure, wiring and connectors, power supply, base plate;
8. Image processing system: optical text, recognition system, automation/robotics technology, infrared image system
9. Optical system: microscope, laser scanner, electronic video endoscope, industrial endoscope

Machine vision system working process:

1. The workpiece positioning detector detects that the object has moved close to the center of the camera system's field of view, and sends a trigger pulse to the image acquisition part.
2. The image acquisition part sends start pulses to the camera and lighting system respectively according to the preset program and delay.
3. The camera stops the current scan and restarts a new frame scan, or the camera is in a waiting state before the start pulse arrives, and starts a frame scan after the start pulse arrives.
4. Open the exposure mechanism before the camera starts scanning a new frame, and the exposure time can be set in advance.
5. Another start pulse turns on the light illumination. The turn-on time of the light should match the exposure time of the camera.
6. After the camera is exposed, the scanning and output of a frame of image officially begins.
7. The image acquisition part receives analog video signals and digitizes them through A/D, or directly receives the digital video data digitized by the camera.
8. The image acquisition part stores digital images in the memory of the processor or computer.
9. The processor processes, analyzes, and identifies the image to obtain measurement results or logical control values.
10. The processing results control the movement of the assembly line, positioning, correcting motion errors, etc.