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Method for monitoring yarns of thread spinner based on edge projection analysis

A projection and yarn technology, used 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: 2020-05-12
HANGZHOU JINGYI INTELLIGENT SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has the advantages of simple principle and low cost, but the gain of the amplifier circuit is ver

Method used

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  • Method for monitoring yarns of thread spinner based on edge projection analysis
  • Method for monitoring yarns of thread spinner based on edge projection analysis
  • Method for monitoring yarns of thread spinner based on edge projection analysis

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[0016] The present invention will be further explained in conjunction with the drawings:

[0017] Reference figure 1 -3. A yarn monitoring method for spinning machines based on edge projection analysis, with a U-shaped housing and an electronic control device arranged inside the housing. The electronic control device includes a power supply circuit for supplying power and performing arithmetic processing The processor, the infrared emitting unit 1 and the image sensor 2 connected to the processor, and the infrared filter 3 is set on the image sensor 2.

[0018] The said power supply circuit performs level conversion on the input power and stabilizes it to provide power for other circuits.

[0019] 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.

[0020] The infrared filter 3 can filter out light other than infrared light, which can greatly improve environmental ad...

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Abstract

The invention discloses a method for monitoring yarns of a thread spinner based on edge projection analysis. A shell is arranged and an electronic control device is arranged in the shell; the electronic control device comprises a power circuit, a processor, an infrared emission unit and an image sensor; the infrared emission unit and the image sensor are connected with the processor, an infrared filter is arranged on the image sensor, and the infrared emission unit is arranged right above the image sensor. The method for monitoring the yarns of the thread spinner set in the processor comprisesthe following steps that (1) every a fixed period T, the processor collects image data f<t> (x, y) output by the image sensor; (2) a binarization algorithm is used for performing binarization processing on the image data f<t> (x, y) to obtain a binary function y <t> (x, y); (3) the projection area of the binary function y<t>(x, y) is projected to the x axis to obtain a histogram W<t>[M]; (4) if W<t>[i] is greater than N/2, W<t>[i] is set to be 0; and the sum S<t> of the histogram W<t>[M] is calculated; and (5) the difference value delta S between the sum S<t> and the sum S<t-1> of the histogram is calculated: when delta S is larger than or equal to a preset threshold value K, the yarns are determined in a motion state; otherwise, the yarns are determined in a static state.

Description

technical field [0001] The invention relates to a method for monitoring yarns of spinning machines based on edge projection analysis, which belongs to the technical field of textile electronics. Background technique [0002] The seamless underwear machine is a special equipment for producing one-time forming underwear. Seamless underwear uses high-tech technology for producing high-elastic knitted outerwear, underwear and high-elastic sportswear, so that the neck, waist, hips and other parts do not need seams. Seamless underwear completely integrates comfort, fashion and change. In order to improve work efficiency and reduce production costs, the seamless underwear machine has realized unmanned production. However, seamless underwear machines are generally made of multiple or even more than ten groups of yarns, even if one group of yarns is broken or lacks yarns, the currently woven clothes will be scrapped. Therefore, it is particularly important to monitor yarn breakage...

Claims

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Application Information

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IPC IPC(8): D04B35/14D04B35/20
CPCD04B35/14D04B35/20
Inventor 不公告发明人
Owner HANGZHOU JINGYI INTELLIGENT SCI & TECH
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