A soft medium edge detection device
An edge detection device and medium technology, which is applied to measurement devices, optical devices, instruments, etc., can solve problems such as poor detection accuracy, light source interference, and dirt contamination.
Inactive Publication Date: 2017-12-08
HANGZHOU DIANZI UNIV
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[0006] The purpose of the present invention is to provide a soft medium edge detection device and its detection method to overcome the shortcomings of external light source interference, dirt pollution, poor detection accuracy, etc., and not limited by the shape of the object to be measured and the detection environment
The invention is mainly used in the field of soft medium segmentation processing
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[0018] The present invention will be further described below in conjunction with accompanying drawing.
[0019] In the embodiment of the present invention, the wide soft medium is divided into multiple narrow mediums by a cutter, and one medium at the edge of the division (that is, the medium to be tested) enters the round holes of the fixed frames on the front and rear sides of the edge detection device and the gap at the bottom , passing through the inside of the black box, the line array image sensor detects the width of the medium to be tested, so as to determine the relative position of the cut slice and the edge of the soft medium.
[0020] The left view of the internal structure of the edge detection device of the embodiment of the present invention is as follows figure 2 As shown, the front view (part of the structure) is as image 3 As shown, the edge detection device includes: an image acquisition system, a light source system 207 and a light-tight black box 206 . ...
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The invention relates to a method and device for detecting the edge of a flexible medium. The top of a light-proof black box in the device is an inclined plane, the included angle between the inclined plane and a horizontal plane is alpha, and a round hole is formed in the position close to the middle of the bottom of the inclined plane. The middles of the bottom edges of the front face and the back face of the black box are respectively provided with a rectangular notch so that a medium to be detected can penetrate through the detection device. The middles of the front portion and the back portion of a base of the black box are respectively and fixedly provided with a strip-shaped abrasion-resisting fixing ring, and a round hole is formed in the middle of each fixing ring. The medium to be detected penetrates into the rectangular notches of the black box through the round holes in the middles of the fixing rings. It is guaranteed that when the medium to be detected penetrates through the detection device at a constant speed, stable tensioning force is kept. A light source system is located below the middle of the top end of the inclined plane. After the detected flexible medium is cut by cutters which are fixedly arranged, the width of a thread on the edge of the flexible medium is detected through an image acquisition system, and therefore the position of the edge of the flexible medium relative to an edge blade of the cutter on the same side is determined. According to the method and device for detecting the edge of the flexible medium, detection precision is high, and interference caused by the surfaces and colors of objects to be detected, external light and external dirt is avoided.
Description
technical field [0001] The invention provides a soft medium edge detection device and a detection method thereof, which are mainly used in the field of soft medium cutting, and relate to industrial product detection technology, photoelectric technology, sensor technology and image processing technology, especially edge detection technology, through The photoelectric sensor detects the real image under uniform parallel light illumination to determine the position of the edge of the media. Background technique [0002] At present, in the field of industrial control, it is necessary to detect the edge position of soft media (such as film, cloth, paper, etc.) in many cases to ensure that the media moves along the correct track. Edge detection is mainly to accurately measure the shape and size of objects. Current edge detection methods include: (1) infrared detection, (2) microscope detection, and (3) optical coupling device detection. The detection accuracy is affected by the ...
Claims
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IPC IPC(8): G01B11/00
Inventor 朱礼尧吴涛公晓丽
Owner HANGZHOU DIANZI UNIV