Visual inspection

    Visual inspection machine manufacturers introduce visual inspection.

    Visual inspection is the use of machines instead of human eyes for measurement and judgment. Visual inspection refers to the use of machine vision products (ie, image capture devices, divided into CMOS and CCD) to convert the captured target into image signals, which are sent to a dedicated image processing system, and converted into image signals based on pixel distribution and information such as brightness and color. Digital signal; the image system performs various operations on these signals to extract the characteristics of the target, and then controls the action of the equipment on the spot according to the result of the discrimination. It is a valuable mechanism for production, assembly or packaging. It has inestimable value in detecting defects and preventing defective products from being delivered to consumers.

    The feature of machine vision inspection is to improve the flexibility and automation of production. In some dangerous working environments that are not suitable for manual operations or occasions where artificial vision is difficult to meet the requirements, machine vision is often used to replace artificial vision; at the same time, in the mass industrial production process, manual visual inspection of product quality is inefficient and inaccurate. , The use of machine vision inspection methods can greatly improve production efficiency and production automation. Moreover, machine vision is easy to realize information integration, and it is the basic technology to realize computer integrated manufacturing.

    Image Acquisition:

    The frame grabber is only a part of a complete machine vision system, but it plays a very important role. The frame grabber directly determines the interface of the camera: black and white, color, analog, digital and so on.

    The more typical is a PCI or AGP compatible capture card, which can quickly transfer the image to the computer memory for processing. Some capture cards have built-in multiplexers. For example, you can connect 8 different cameras, and then tell the capture card to use the information captured by which camera. Some capture cards have a built-in digital input to trigger the capture card to capture. When the capture card captures an image, the digital output port triggers the gate.

    Vision processor

    The vision processor integrates a capture card and a processor. In the past, when the computer speed was slow, the visual processor was used to speed up the visual processing task. Since the capture card can quickly transfer images to the memory, and the computer is much faster, the vision processor is used less. The frame grabber is only a part of a complete machine vision system, but it plays a very important role. The frame grabber directly determines the interface of the camera: black and white, color, analog, digital and so on.

    The more typical is a PCI or AGP compatible capture card, which can quickly transfer the image to the computer memory for processing. Some capture cards have built-in multiplexers. For example, you can connect 8 different cameras, and then tell the capture card to use the information captured by which camera. Some capture cards have a built-in digital input to trigger the capture card to capture. When the capture card captures an image, the digital output port triggers the gate.

    Vision processor   

    The vision processor integrates a capture card and a processor. When the computer speed was slow in the past, the vision processor was used to speed up the vision processing task. Since the capture card can quickly transfer images to the memory, and the computer is much faster, the vision processor is used less.