A control method of defect visual detection equipment
A technology of visual detection and control method, applied in the field of control, can solve the problems of high real-time requirements, and achieve the effect of high-speed and reliable operation, small number of threads, and no resource competition phenomenon
Active Publication Date: 2022-05-27
ZHONGKAI UNIV OF AGRI & ENG
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Problems solved by technology
It takes only a few milliseconds for the object to be inspected to pass through the camera and nozzle of the high-speed defect visual inspection equipment, that is, the time error between photographing and jetting is only a few milliseconds, and the real-time requirements are extremely high. The above shortcomings cannot meet this real-time requirement
Method used
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Embodiment 1
[0046] like figure 1 As shown, the defect visual inspection equipment includes a feeder 1 , a photoelectric sensor 2 , a turntable 3 , a first camera 4 , a second camera 5 , a good nozzle 6 and a bad nozzle 7 .
[0047] The turntable 3 is transparent and rotates clockwise at a given speed. The feeder 1 sequentially puts a plurality of detected objects 8 on the turntable 3, and the detected objects 8 pass through the photoelectric sensor 2, the first camera 4, and the second camera 5 in sequence. , Good nozzle 6 and bad nozzle 7, photoelectric sensor 2 is used to detect the detected object 8, the first camera 4 and the second camera 5 are used to take the front and back photos of the detected object 8, the good nozzle 6 and the bad nozzle 7 will According to the photo analysis result obtained by the given image judgment algorithm, the detected object 8 is blown into the corresponding cup to realize the classification.
[0048] A control method of defect visual inspection equip...
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The invention provides a control method of defect visual detection equipment, by controlling the sensor, more than one camera and multiple types of nozzles in the defect visual detection device to take pictures and classify the detected objects passing sequentially on the turntable, the control method Including the initialization of the control software of the defect visual detection equipment in step 1, the process of detecting the detected object through the sensor in step 2, and initializing a new node at the same time, the reading and analysis of each node in the linked list in step 3, and the initialization of the defect visual detection equipment in step 4 Execute to complete the photographing and classification of the detected object; the control method of the defect visual inspection device provided by the present invention has the advantages of small and fixed number of threads, no resource competition, high-speed and reliable operation, and is suitable for defect detection with strict requirements on control speed equipment.
Description
technical field [0001] The invention belongs to the technical field of control, relates to a control scheduling method, and in particular relates to a control method of a defect visual detection device. Background technique [0002] In the industrial production process, it is usually necessary to use machine vision to judge whether the product has defects. The defect visual inspection equipment has a loader, a turntable, a sensor, a camera and a nozzle, etc. Micro-detected objects such as wafers are put into the edge of the turntable by the loader, and are arranged in sequence on the edge of the turntable. The sensor is used for the positioning of the detected object. , when the detected object reaches the position of the camera, start taking pictures, and after image recognition of the photos taken, the judgment results such as good products and bad products are obtained. When the detected object reaches the position of the nozzle corresponding to the judgment result, the c...
Claims
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IPC IPC(8): G01N21/84G01N21/01G01N21/88G01N21/89B07C5/34B07C5/36
CPCG01N21/84G01N21/8851G01N21/89G01N21/01B07C5/34B07C5/365G01N2021/8416G01N2021/887G01N2021/8887G01N2021/0112
Inventor 刘毅肖明明
Owner ZHONGKAI UNIV OF AGRI & ENG