The role of industrial computer in each link
1. Image capture: generally, it is a network port camera and a USB camera. The higher the interface speed and bandwidth, the higher the upper limit of the captured image pixels and frames. (most use USB 3.0 and Intel chips 1g, 2.5G and 10g)
2. Visual analysis: analyze captured images. The higher the image pixels, the more analysis points, and the higher the demand for GPU and graphics card. In the same case, the higher the performance of the graphics card, the faster the analysis speed. (independent graphics card is generally used for high-speed detection equipment)
3. Track separation: generally, the detected problems are separated according to the different attributes. For example, if the food is only empty and there are no items, it is filtered by strong wind. Generally, the serial port sends the switch closing signal or connects the PLC for more complicated operations.
Examples of actual use:
SMT tin effect detection
Through analysis and comparison with the set picture, it is found that the circuit board with tin loading effect not conforming to the standard will have ng error. In this step, the robot arm will automatically take it away or it will flow to the repair post in the next step, and it will be handled by the repair personnel. In the case of low automation, someone will open the cover and take away the PCB board, and then press start to continue production.
Detection of backlight film applicator:
The backlight film of the mobile phone is pasted by the manipulator through the network port or USB to catch the real object, and then the analysis is carried out. After confirming that the material positions are correct, the next step of combination is entered, and then the camera catches the film to ensure that the paste is consistent and flows into the next step;
These are relatively complicated, the number of picture frames read is not large, and the required graphics processing capacity is not high. Basically, most machine interfaces can meet the standards.
Component testing equipment:
This type of detection is fast. Tens or even hundreds of pieces are detected every second. The number of pixels read is not high, the number of frames is very high, and there is no frame loss. This type of detection requires relatively high network interfaces. Generally, Intel gigabit network cards are used. However, with the improvement of equipment speed, the requirements for capturing image and image processing of the network interface are also higher. Then we must keep up with the market and upgrade.
