Yarn state discrimination method based on feature two-dimensional description
A state discrimination and yarn technology, applied in textiles, papermaking, knitting, etc., can solve the problems of easy interference, narrow detection area, large gain of amplifier circuit, etc., and achieve the effect of reliable operation and simple principle.
Inactive Publication Date: 2021-05-07
HANGZHOU JINGYI INTELLIGENT SCI & TECH
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0018] Now in conjunction with accompanying drawing, the present invention will be further described:
[0019] refer to figure 1 -4. The yarn state discrimination method based on the two-dimensional description of the feature is provided with a U-shaped housing and an electronic control device inside the housing. The electronic control device includes a power supply circuit that provides power and performs calculation processing A processor, an infrared emitting unit 1 and an image sensor 2 connected to the processor, and an infrared filter 3 is arranged on the image sensor 2.
[0020] The power supply circuit converts the input power level and stabilizes the voltage to provide power for other circuits.
[0021] The image sensor 2 is configured as a CCD linear image sensor or a CMOS linear image sensor sensitive to infrared rays, and the processor can read image data as required.
[0022] The infrared filter 3 can filter out light other than infrared light, which can greatly...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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The invention discloses a yarn state discrimination method based on feature two-dimensional description. A U-shaped shell and an electronic control device arranged in the shell are provided; the electronic control device comprises a power supply circuit for providing a power supply, a processor for operation processing, and an infrared emission unit and an image sensor which are connected with the processor; an infrared filter is arranged on the image sensor; the infrared emission unit is arranged right above the image sensor; and a yarn state discrimination method is performed in the processor and comprises the following steps of (1) collecting image data ft (x, y) output by the image sensor by the processor; (2) carrying out binarization processing on the image data ft (x, y) by adopting a binarization algorithm to obtain Bt (x, y); (3) extracting a contour line B't (x, y) of the binary function Bt (x, y); (4) extracting a numerical descriptor Rt of the contour line B't (x, y); and (5) comparing numerical descriptors Rt and Rt-1: when a formula as shown in the specification is greater than or equal to a preset threshold value K, judging that the yarn is in a motion state; otherwise, judging that the yarn is in a static state.
Description
technical field [0001] The invention relates to a yarn state discrimination method based on two-dimensional feature description, which belongs to the technical field of textile electronics. Background technique [0002] The fully automated seamless underwear machine, as well as the automated sock machine, can completely weave one piece and one sock without human intervention. Unmanned and high efficiency can lead to increased production and reduced costs, but if a group of yarns are broken or missing, if not found in time, the entire garment will be scrapped. Therefore, yarn state detection has become an indispensable equipment for seamless underwear machines and socks machines. The currently used yarn state sensor uses a differential infrared photosensitive diode for detection. This method has the advantages of simple principle and low cost, but the gain of the amplifying circuit is very large, it is easy to be interfered, and the detection area is very narrow, which requ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): D04B35/10D04B35/14
CPCD04B35/10D04B35/14
Inventor 不公告发明人
Owner HANGZHOU JINGYI INTELLIGENT SCI & TECH