Visual detection controller

Abstract

The invention discloses a visual detection controller. The visual detection controller comprises an image acquisition module, an image preprocessing module, an interface module, a time stamp management module, a buffer memory and a camera. The image acquisition module is used for controlling the camera to photograph linear images of a product to be detected and store the linear images of the product to be detected in the buffer memory. The time stamp management module is used for sorting the stored linear images according to time stamp order and transmitting a sorting result to the image preprocessing module. The image preprocessing module is used for extracting the linear images and preprocessing the linear images in turn according to the order. The interface module is used for uploading the preprocessed images to an industrial control computer, receiving detection results fed back by the industrial control computer and outputting the detection results to external equipment. According to the visual detection controller, computing amount of the industrial control computer required for image analysis is reduced, the overall detection speed of the detection system is enhanced, the risk of data packet loss can be greatly reduced, and the visual detection controller can be greatly adaptive to high-speed and complex detection environment.

Description

technical field [0001] The invention relates to a vision detection controller. Background technique [0002] Existing visual inspection controllers mostly use encoders, IO cards (input and output cards) to link with industrial computers to complete signal input and output. Although this mode is simple and versatile, it is not designed specifically for visual inspection, so it is suitable for high-speed and complex inspection environments. Such visual detection controller has the following deficiencies: [0003] 1. Since the existing visual inspection controller has no cache mechanism, the risk of losing data packets is high. If the upper computer is busy processing a lot of data, the network card can still only send the image data captured by the camera to the upper computer, and it is very likely to discard the data packets. [0004] 2. Since there is no image preprocessing mechanism and the image data is large, it is difficult for the host computer to perform real-time ...

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to overcome the visual detection controller in the prior art, which has a high risk of losing data packets, low overall system efficiency, and lack of a sufficiently accurate time stamp function, making it difficult to adapt to high-speed and complex detection environments. defects, a vision detection controller is proposed

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