CN210401196U - Fabric color difference detection device based on machine vision recognition technology - Google Patents
Fabric color difference detection device based on machine vision recognition technology Download PDFInfo
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- CN210401196U CN210401196U CN201920627882.2U CN201920627882U CN210401196U CN 210401196 U CN210401196 U CN 210401196U CN 201920627882 U CN201920627882 U CN 201920627882U CN 210401196 U CN210401196 U CN 210401196U
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Abstract
The utility model discloses a fabric color difference detection device based on machine vision identification technology, which comprises a conveying system and a detection box, wherein the conveying system comprises a front conveying section, a conveying roller and a rear conveying section, a first detection box is vertically arranged above the front conveying section, and a second detection box is vertically arranged below the rear conveying section; the periphery of the bottom edge of the interior of the first detection box and the periphery of the bottom edge of the interior of the second detection box are both provided with uniform and constant standard light sources, and the middle of the bottom edge of the interior of the detection box is provided with a CCD high-definition camera; the CCD high-definition camera is externally connected with an image processing computer, and the image processing computer controls an alarm system and a conveying start-stop system. The utility model discloses the device is simple, and the automatic quick bar of testing process, the result is accurate reliable, good reproducibility, fabric detection demand when can satisfying large-scale production.
Description
Technical Field
The utility model belongs to fabric appearance quality detection area is a fabric colour difference detection device based on machine vision identification technique particularly.
Background
The color of the fabric is an important evaluation index in the production process of the fabric, and is directly related to the quality, price, grade and the like of the fabric. Because the fabric production line is influenced by various complex factors, the color of the product is difficult to keep completely consistent with that of a standard color sample, and generally, the color difference exists. Therefore, in actual production, it is necessary to detect the color of the fabric and compare the color with a standard sample so that the color difference of the fabric is controlled within an acceptable range.
The traditional fabric color difference detection method is mainly characterized in that the detection is carried out by identifying with human eyes of workers or adopting handheld measuring equipment such as a spectrophotometer and the like. The human eye detection has strong subjectivity, low detection precision and easy occurrence of conditions such as missing detection, false detection and the like; when the handheld measuring equipment is used for detection, the detection efficiency is low, time and labor are wasted, and the fabric detection requirement in large-scale production cannot be met; therefore, the fabric color difference detection device with the visual identification capability can be used for rapidly and accurately detecting the fabric color difference.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fabric colour difference detection device based on machine vision identification technique to solve the fabric colour difference detection device inefficiency, the low scheduling problem of precision that exist among the prior art.
The utility model relates to a fabric color difference detection device based on machine vision recognition technology, which is realized by the following technical scheme, comprising a conveying system and a detection box, wherein the conveying system comprises a front conveying section, a conveying roller and a rear conveying section, a first detection box is vertically arranged above the front conveying section, and a second detection box is vertically arranged below the rear conveying section; the periphery of the bottom edge of the interior of the first detection box and the periphery of the bottom edge of the interior of the second detection box are both provided with uniform and constant standard light sources, and the middle of the bottom edge of the interior of the detection box is provided with a CCD high-definition camera; the CCD high-definition camera is externally connected with an image processing computer, and the image processing computer controls an alarm system and a conveying start-stop system.
Further, the image processing computer automatically converts image signals acquired by the camera into color analysis RGB values, performs area division, compares the color difference degrees of different areas on the fabric in the analysis process, and returns a result whether the color difference is qualified or not; if the result is qualified, the material is still normally conveyed, and if the result is unqualified, the alarm system is started, the conveying start-stop system is stopped, and the material distribution conveying is stopped.
Furthermore, the front conveying section is connected with the cloth roll to be measured through a conveying roller, and the front conveying section is connected with the measured cloth roll through the conveying roller.
Further, the conveying roller shaft comprises a driving roller and a driven roller, and the driving roller is controlled by a conveying start-stop system.
Further, the pixels of the CCD high-definition camera are not less than 1000 ten thousand, and the photographing speed is not less than 25 frames per second.
The utility model provides a fabric colour difference detection device based on machine vision identification technique, the device compares with prior art, has following advantage:
1. the utility model discloses the first detection case and the second detection case of device can realize detecting the textile fabric positive and negative simultaneously, and detection efficiency is high, and the result is accurate more comprehensive.
2. The utility model discloses use the invariable standard light source of homogeneous in the device, do benefit to the photographic clarity, and interference to the testing result such as reducible ambient light, human operation error, detection efficiency is high, good reproducibility.
3. The image processing computer in the device of the utility model converts the image signal collected by the camera into a color analysis RGB value automatically, and carries out region division, the analysis process contrasts the color difference conditions of different regions on the fabric, and returns the result whether the color difference is qualified or not; if the result is qualified, the material is still normally conveyed, and if the result is unqualified, an alarm system is started and the material distribution conveying is stopped. The whole testing, analyzing and result feedback process is spontaneous and rapid, the analyzing process is strict and comprehensive, and the reliability is high.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, 1 conveying system, 2 detection system, 11 front conveying section, 12 conveying rollers, 13 rear conveying section, 21 first detection box, 22 second detection box, 200 standard light source, 210CCD high-definition camera, 220 image processing computer, 3 fabric roll to be detected, 121 first driven roller, 122 first driving roller, 123 second driven roller and 124 second driving roller.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the scope of the present invention.
As shown in fig. 1, a fabric color difference detection device based on a machine vision recognition technology comprises a conveying system 1 and a detection system 2, wherein the conveying system 1 comprises a front conveying section 11, a conveying roller 12 and a rear conveying section 13, a first detection box 21 is vertically arranged above the front conveying section 11, and a second detection box 22 is vertically arranged below the rear conveying section 13; the periphery of the bottom edges of the interior of the first detection box 21 and the second detection box 22 is provided with a uniform and constant standard light source 200, and the middle of the bottom edges of the first detection box 21 and the second detection box 22 is provided with a CCD high-definition camera 210; the CCD high-definition camera 210 is externally connected with an image processing computer 220, and the image processing computer 220 controls an alarm system and a conveying start-stop system. The conveying roll shaft comprises a driving roll and a driven roll, and the driving roll is controlled by a conveying start-stop system.
The process of detecting the color difference of the cloth fabric by the device comprises the following steps: the fabric roll 3 to be detected is conveyed by the first driven roller 121, passes through the front conveying section 11 and the first detection box 21 in a cloth unfolding state, the first detection box 21 transmits picture information to the image processing computer 220, and the image processing computer 220 processes, detects and analyzes whether the front color difference of the fabric is qualified or not; the detected qualified fabric is transmitted to the rear conveying section 13 through the first driving roller 122 and the second driven roller 123, the second detection box 22 takes pictures of the reverse side of the fabric and transmits picture information to the image processing computer 220, and the image processing computer 220 processes and detects whether the color difference of the reverse side of the fabric is qualified or not; if the detection result is qualified, the cloth is continuously conveyed forwards and is wound by the second driving roller 124. If the analysis result is not qualified when the cloth is detected in the first detection box 21 or the second detection box 22, the image processing computer 220 will return a notification that the color difference is not qualified, and automatically start the alarm system and stop the cloth transportation.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A fabric color difference detection device based on a machine vision recognition technology comprises a conveying system and a detection box, and is characterized in that the conveying system comprises a front conveying section, a conveying roller and a rear conveying section, a first detection box is vertically arranged above the front conveying section, and a second detection box is vertically arranged below the rear conveying section; the periphery of the bottom edge of the interior of the first detection box and the periphery of the bottom edge of the interior of the second detection box are both provided with uniform and constant standard light sources, and the middle of the bottom edge of the interior of the detection box is provided with a CCD high-definition camera; the CCD high-definition camera is externally connected with an image processing computer, and the image processing computer controls an alarm system and a conveying start-stop system.
2. The fabric color difference detection device based on the machine vision recognition technology as claimed in claim 1, wherein the front conveying section is connected with the fabric roll to be detected through conveying rollers, and the front conveying section is connected with the fabric roll to be detected through conveying rollers.
3. The fabric color difference detection device based on the machine vision identification technology of claim 1, wherein the conveying roller shaft comprises a driving roller and a driven roller, and the driving roller is controlled by a conveying start-stop system.
4. The fabric color difference detection device based on the machine vision recognition technology as claimed in claim 1, wherein the pixels of the CCD high-definition camera are not less than 1000 ten thousand, and the photographing speed is not less than 25 frames/second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627882.2U CN210401196U (en) | 2019-05-05 | 2019-05-05 | Fabric color difference detection device based on machine vision recognition technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920627882.2U CN210401196U (en) | 2019-05-05 | 2019-05-05 | Fabric color difference detection device based on machine vision recognition technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210401196U true CN210401196U (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920627882.2U Active CN210401196U (en) | 2019-05-05 | 2019-05-05 | Fabric color difference detection device based on machine vision recognition technology |
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| Country | Link |
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| CN (1) | CN210401196U (en) |
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2019
- 2019-05-05 CN CN201920627882.2U patent/CN210401196U/en active Active
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