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CPLD controller special for detecting defects of weft-knitted fabrics

A technology for detecting control systems, knitted fabrics, applied in the direction of program control, electrical program control, etc. in sequence/logic controllers

Inactive Publication Date: 2011-04-13
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after using digital image processing technology to complete the defect detection of weft-knitted fabrics, there is no clear solution on how to identify the defects and perform preliminary processing.

Method used

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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  • CPLD controller special for detecting defects of weft-knitted fabrics
  • CPLD controller special for detecting defects of weft-knitted fabrics
  • CPLD controller special for detecting defects of weft-knitted fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The entire weft-knitted fabric defect detection controller is mainly composed of CPLD system, and the weft-knitted fabric defect detection processor is mainly composed of CPLD, memory, communication interface and keyboard display, etc., which are used to receive, store and process weft knitting during work Knitted fabric defect data, the composition block diagram is as follows figure 2 shown. When the defect data of the weft-knitted fabric is changed, the system microcomputer is used to input the defect data through the RS232 interface and stored in the defect processor of the weft-knitted fabric.

[0017] The weft-knitted fabric defect memory is used to store defect data; the keyboard and display are used to input weft-knitted fabric structural parameters and other working parameters; the RS-232 serial communication interface receives defect data transmitted from the host computer; the CPLD system is responsible for the entire Operational control and data processing ...

example 2

[0021] The entire weft-knitted fabric defect detection controller is mainly composed of FLEX10k Altera CPLD system, and the fabric defect processor is mainly composed of FLEX10kAltera CPLD system, memory, communication interface and keyboard display, etc., which are used to receive, store and process fabric defects during work Data, composed of block diagrams such as Figure 4 shown. When the fabric defect data is changed, the processed fabric defect data is stored in the U disk, and the fabric defect data of the U disk is read into the memory of the fabric defect processor through the USB interface.

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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PUM

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Abstract

A CPLD controller special for detecting defects of weft-knitted fabrics belongs to the field of novel textile machinery. The defects of weft-knitted fabrics are characterized by wide varieties and complex detection algorithm, so the specific detect treatment flow needs to be selected according to the variety and relevant characteristics of the defects during defect detection. Adopting simple single software treatment method obviously can not meet the real-time control requirement of defect detection. In order to solve the technical problem, in the invention, CPLD is taken as the core of a control system and a CPLD system is used for reading the variety and relevant characteristics of the defects and controlling the subsequent treatment flow of the defects of weft-knitted fabrics so as to meet the real-time control requirement of defect detection treatment, thus completing the treatment flow of the defects of weft-knitted fabrics.

Description

technical field [0001] The invention relates to the development of a special control system for weft-knitted fabric defect detection with the CPLD system as the core, and specifically relates to using the CPLD system to read the defect types and related characteristic data of weft-knitted fabrics and store the information in the memory, and use the data to control the step in real time. The action of the motor can realize the control of the defect detection and processing mechanism, so as to achieve the effect of real-time processing of defects. Background technique [0002] During the production process of weft-knitted fabrics, defects such as bamboo knots, holes, and oil stains will be formed on the fabric surface due to the yarn and weaving process. After the production of weft-knitted fabric is completed, the computer digital image processing technology can be used to locate the fabric defect and extract the characteristic parameters of the fabric defect to classify the ...

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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Application Information

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IPC IPC(8): G05B19/04
Inventor 潘如如刘基宏王鸿博高卫东刘建立
Owner JIANGNAN UNIV
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