The working process of industrial machine vision system

1. When the sensor detects that the detected object is close to the shooting center of the camera, it will send the trigger pulse to the image acquisition card;

2. The image acquisition card will send the starting pulse to the lighting system and camera respectively according to the preset program and delay;

3. A startup pulse is sent to the camera, the camera ends the current photo and starts a new photo, or the camera is in a waiting state before the arrival of the startup pulse, and starts after detecting the startup pulse. Before starting a new photo, the camera opens the exposure components (the esposure time is set in advance); Another startup pulse is sent to the light source, which needs to be turned on for a time that matches the camera's exposure time; the camera scans and outputs an image;

4. The image acquisition card receives the signal and digitizes the analog signal through A/D conversion, or directly receives the digital video data digitized by the camera;

5. The image acquisition card stores the digital image in the memory of the computer;

6. The computer processes, analyzes and recognizes the images to obtain the detection results;

7. Control the movement of the pipeline, carry out positioning and correct the error of the movement, etc.