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System for detecting quality of carpet threads based on visual method

A quality system and carpet technology, applied in the direction of optical testing flaws/defects, etc., can solve the problems of missed detection and wrong detection, and achieve the effect of improving the efficiency of data processing

Inactive Publication Date: 2012-09-19
ZHEJIANG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the shortcomings of the existing manual online visual inspection and offline sampling inspection, which are prone to missed inspections and false inspections, and proposes a method that can detect carpet broken wires and multi-wire defects online and in real time. Visual method for weaving thread control machine communication to detect the quality system of carpet weaving thread

Method used

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  • System for detecting quality of carpet threads based on visual method
  • System for detecting quality of carpet threads based on visual method
  • System for detecting quality of carpet threads based on visual method

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Refer to attached figure 1 , 2 , code description in the figure: 1 light source; 2 object under test (carpet); 3 camera group; 4 high-speed acquisition and processing card; 5 signal card;

[0013] The visual method detects the carpet weaving thread quality system, which is characterized in that: it includes a light source, a camera group, a high-speed acquisition and processing card, and a server; the light source system adopts a line light source, and the light source adopts an oblique lighting method; the camera adopts a line array camera, The camera group adopts the mode of format splicing; the output line of the line array camera is connected to a high-speed image acquisition and processing card, and the high-speed image acquisition and processing card is integrated with an FPGA module, and the FPGA module includes a brightness correction unit, Gray balanc...

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Abstract

The invention discloses a system for detecting quality of carpet threads based on a visual method, which comprises a light source, a camera set, a high-speed acquisition and processing card and a server, wherein the light source is a linear light source and adopts an oblique illumination way; the camera is a linear camera and the camera set adopts a breadth splicing way; the output cable of the linear camera is connected with the high-speed image acquisition and processing card which is integrated with a field programmable gate array (FPGA) module, and the FPGA module comprises a brightness correction unit, a gray balancing unit, a target segmentation unit, and a region of interest (ROI) unit; the high-speed image acquisition and processing card is in signal connection with the server; and the server comprises a defect judgment module for analyzing an ROI image, and is communicated with a carpet thread controller by a signal card.

Description

(1) Technical field [0001] The invention relates to a system for visually detecting the quality of carpet weaving threads, which is suitable for the textile field. (2) Background technology [0002] Foshan, China is the main production area of ​​thread-woven carpets, but due to the lack of testing equipment in the production process, the defect rate of the products is too high, which not only affects the overall production efficiency, but also keeps the products in a low-quality and low-price situation. Market research It can be seen that more than 80% of the defects of thread-woven carpets are broken threads and multi-threads. At present, the domestic inspection method still adopts the working method of manual online visual inspection and offline sampling inspection. , it is easy to miss and wrongly detect, and the off-line random inspection cannot fully guarantee the quality of the product, so an online detection device is urgently needed. (3) Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G01N21/88
Inventor 张洪涛
Owner ZHEJIANG UNIV OF TECH
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