CN111665256A - Surface defect detection equipment based on machine vision - Google Patents
Surface defect detection equipment based on machine vision Download PDFInfo
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- CN111665256A CN111665256A CN201910177238.4A CN201910177238A CN111665256A CN 111665256 A CN111665256 A CN 111665256A CN 201910177238 A CN201910177238 A CN 201910177238A CN 111665256 A CN111665256 A CN 111665256A
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- film roll
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- 238000001514 detection method Methods 0.000 title claims abstract description 67
- 230000007547 defect Effects 0.000 title claims abstract description 51
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000004458 analytical method Methods 0.000 claims abstract description 3
- 238000001179 sorption measurement Methods 0.000 claims description 17
- 230000000007 visual effect Effects 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 10
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 230000002950 deficient Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011179 visual inspection Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention aims to provide surface defect detection equipment based on machine vision, which is used for detecting surface defects of a film roll and comprises a rack, a film roll assembly and a vision detection system, wherein the rack comprises an operating platform, side brackets and an upper frame, and the operating platform comprises a detection area; the membrane winding group includes consecutive material loading roller, receives the material roller from type paper, tightens the roller, from type paper material loading roller and unloading roller, vision detecting system includes industry camera, light source, PLC controller, vision detecting system pass through system's support mounting in the frame and set up in detection area's top, after the product gets into detection area, the PLC controller gives camera trigger signal shoots, gets the picture analysis processes back through the camera, the PLC controller control actuating mechanism moves. The invention can quickly and efficiently search and find the position of the defect area as soon as possible, and can treat the defect film from the source.
Description
Technical Field
A method and a device for detecting defects of a discontinuous lithium battery film based on machine vision.
Technical Field
The invention relates to the technical field of machine vision, in particular to a machine vision-based surface defect detection device for online detection of surface defects of film roll products.
Background
The traditional film surface quality detection is realized by manual online visual inspection and offline finished product sampling inspection, and is only suitable for occasions with small production scale. The manual detection uses subjective impression as a detection standard, the consistency of detection between different products in the transverse direction and at different time in the longitudinal direction is difficult to achieve, and the quality of the products of the manual detection is difficult to guarantee due to the limitations of detection speed and sampling frequency, the limitations of human visual sensitivity and resolution. In addition, the method has great harm to the physical and psychological aspects of the testers. Therefore, the development of an automatic defect detection system to replace the traditional manual detection is always the target and the direction of the development of the film surface quality detection technology.
The machine vision technology is to use a machine to replace human eyes for measurement and judgment. The machine vision system is to convert the target to be detected into digital signals through a machine vision product (i.e. an image pickup device), and then the digital signals are transmitted to a special image processing system, and the image processing system sets a detection task according to the task requirement to be detected and then records the detection result or controls the on-site equipment action according to the judgment result. The machine vision technology is applied to the online detection of surface defects, and is a new research direction for the online detection of surface quality.
For film products which are discontinuously and intermittently arranged on a continuous film roll carrier, if conventional detection equipment for the continuous film roll is adopted, the film products are warped or sunken due to the uneven tension of the film roll, the distortion of image shooting of the film products is caused to different degrees, and the defect misjudgment of the film products is caused. Therefore, how to search for the position of the defect area quickly and efficiently can process the defect film from the source, avoid the waste of subsequent procedures, better improve the quality and reduce the production cost.
Disclosure of Invention
The invention aims to provide surface defect detection equipment based on machine vision, which can quickly and efficiently monitor the position of a defect area on a film roll product on line.
The invention adopts the technical scheme that the surface defect detection equipment based on machine vision is used for detecting the surface defects of a film roll, wherein the film roll comprises a carrier tape roll, a film product and release paper which is attached to the carrier tape roll and used for protecting the film product; the film winding group is used for conveying a film roll and comprises a feeding roller shaft, a release paper receiving roller shaft, a tightening roller shaft, a release paper feeding roller shaft and a discharging roller shaft which are sequentially connected, the feeding roller shaft and the discharging roller shaft are respectively arranged on side brackets at two sides of an operating platform, the release paper receiving roller shaft and the release paper feeding roller shaft are respectively arranged below the feeding roller shaft and the discharging roller shaft, the tightening roller shafts are divided into two groups and are respectively arranged at two ends of the operating platform, the visual detection system comprises an industrial camera, a light source and a PLC (programmable logic controller), the visual detection system is arranged on the rack and is arranged above a detection area through a system bracket, when a product enters the detection area, the PLC takes a picture for a camera trigger signal, and after the camera performs image taking analysis processing, the camera gives a qualified/unqualified signal to the PLC, and the PLC controller controls the actuating mechanism to act.
Further, every group adjust the tight roller and be two and set up from top to bottom, the membrane book set up in two adjust between the tight roller.
Further, still be provided with the mounting panel on the operation panel, the sunken spacing track that is provided with two parallel arrangement on the mounting panel, the membrane is rolled up move between the spacing track, laser sensor set up in on the spacing track.
Furthermore, a vacuum adsorption plate is arranged below the limiting rail.
Furthermore, the vacuum adsorption plate is of a double-layer structure, the upper layer is provided with a plurality of adsorption small holes, the lower layer is provided with a vacuum adsorption port, and the vacuum adsorption port is connected with a vacuum pump through a vacuum tube.
Further, the visual detection system comprises a display and a touch screen, wherein the display and the touch screen are connected with the visual detection system, the display is fixed on the upper frame and faces to the operation side, and the touch screen is arranged on the operation side of the operation table and used for displaying and manually operating the detection result.
Furthermore, the visual inspection system also comprises an optical fiber sensor arranged at the feeding end and used for detecting whether a product on the film roll carrier tape enters a detection area or not, and if so, a trigger signal is sent to start the light source and the camera to acquire images.
Further, the visual inspection system further comprises a laser sensor arranged at the receiving end and used for indicating the defect area of the product on the film roll carrier when receiving the product defect signal.
Further, the actuating mechanism comprises a driving motor used for driving the film roll to move and a laser sensor used for indicating a defect area of the film product, and the laser sensor is arranged on a limiting track on the material receiving side and used for stopping the movement of the film roll and indicating the defect area to facilitate manual operation when receiving a product defect signal.
Furthermore, a plurality of rows of film products are arranged on the carrier tape roll in parallel, the light source is shared, and a plurality of groups of optical fiber sensors, laser sensors, cameras and PLC controllers are arranged in parallel and used for detecting the plurality of rows of film products arranged on the carrier tape roll in parallel.
Has the advantages that: the surface defect detection equipment based on machine vision can quickly and efficiently search and early find the position of a defect area by adopting a machine vision system, can treat a defect film from the source, avoids subsequent program waste, better improves the quality and reduces the production cost. Furthermore, the film roll can be accurately positioned through the limiting rail, the vacuum adsorption plate and the like, the flatness of the film roll in the detection area is ensured to be consistent, the film products on the film roll are prevented from being raised or sunken, the detection consistency is ensured, and the film roll positioning device is particularly suitable for the situation that multiple rows of film products are arranged on the same film roll.
Drawings
FIG. 1 is a schematic structural diagram of a surface defect detection device based on machine vision according to the present invention.
Fig. 2 is a schematic view of the structure of a film roll of the present invention provided with multiple rows of film products.
Reference numerals: 1. the device comprises a rack, 11, an operation table, 12, side supports, 13, an upper frame, 14, a limiting track, 15, a mounting plate, 16, a vacuum adsorption plate, 2, a film roll assembly, 21, a feeding roller shaft, 22, a discharging roller shaft, 23, a release paper receiving roller shaft, 24, a release paper feeding roller shaft, 25, a tightening roller shaft, 3, a vision detection system, 31, a camera, 32, a light source, 33, an optical fiber sensor, 34 and a laser sensor.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings of the specification.
As shown in fig. 1 and 2, the present invention adopts a technical solution that a machine vision-based surface defect detecting apparatus is used for detecting surface defects of a film roll 26, wherein the film roll 26 comprises a carrier roll, a film product and a release paper attached to the carrier roll for protecting the film product, and comprises a frame 1, a film roll 26 assembly 2 for conveying the film roll 26 and a vision detecting system 3 for detecting the film roll 26, the frame 1 comprises a console 11, side brackets 12 arranged at two sides of the console 11 and an upper frame 13 arranged above the console 11, and the console 11 comprises a detecting area; the film roll 26 winding is used for conveying a film roll 26 and comprises a feeding roller shaft 21, a release paper receiving roller shaft 23, a tightening roller shaft 25, a release paper feeding roller shaft 24 and a discharging roller shaft 22 which are sequentially connected, wherein the feeding roller shaft 21 and the discharging roller shaft 22 are respectively arranged on side brackets 12 at two sides of an operating platform 11, the release paper receiving roller shaft 23 and the release paper feeding roller shaft 24 are respectively arranged below the feeding roller shaft 21 and the discharging roller shaft 22, the tightening roller shafts 25 are divided into two groups and are respectively arranged at two ends of the operating platform 11, the visual detection system 3 comprises an industrial camera 31, a light source 32 and a PLC (programmable logic controller), the visual detection system 3 is arranged on the rack 1 through a system bracket and is arranged above a detection area, and when a product enters the detection area, the PLC controls the camera 31 to shoot a trigger signal, after the image is taken by the camera 31 and analyzed, the camera 31 sends a pass/fail signal to the PLC controller, and the PLC controller controls the actuating mechanism to act. Wherein the release paper receiving roll shaft 23 is used for peeling off and receiving the release paper used for protecting the film product on the film roll before the visual detection is carried out on the film roll, and the release paper feeding roll shaft 24 is used for carrying out interlayer isolation protection on the film product after the detection is finished.
Further, the tightening roller shafts 25 of each group are arranged up and down, and the film roll 26 is arranged between the two tightening roller shafts 25.
Further, still be provided with mounting panel 15 on the operation panel 11, the sunken two parallel arrangement's of being provided with spacing track 14 on mounting panel 15, film roll 26 is in move between spacing track 14, laser sensor 34 set up in on spacing track 14.
Further, a vacuum adsorption plate 16 is arranged below the limit rail 14.
Further, the vacuum adsorption plate 16 is a double-layer structure, the upper layer is provided with a plurality of adsorption pores, the lower layer is provided with a vacuum adsorption port, and the vacuum adsorption port is connected with a vacuum pump through a vacuum tube.
Further, the visual detection system comprises a display and a touch screen which are connected with the visual detection system 3, the display is fixed on the upper frame 13 and faces to the operation side, and the touch screen is arranged on the operation side of the operation table 11 and used for displaying and manually operating the detection result.
Further, the vision inspection system 3 further includes an optical fiber sensor 33 disposed at the feeding end, and is configured to detect whether a product on the film roll 26 is loaded into the inspection area, and if so, send a trigger signal to start the light source 32 and the camera 31 to perform image acquisition.
Further, the visual inspection system further comprises a laser sensor 34 disposed at the receiving end, and configured to indicate a defective area of the product on the film roll carrier when receiving the product defect signal.
Further, the actuating mechanism comprises a driving motor for driving the film roll to move and a laser sensor 34 for indicating a defect area of the film product, wherein the laser sensor 34 is arranged on a limiting track on the material receiving side and used for stopping the movement of the film roll and indicating the defect area to facilitate manual operation when receiving a product defect signal.
Further, the optical fiber sensor 33, the laser sensor 34 and the cameras are arranged in parallel in multiple groups for detecting multiple rows of film products, preferably two groups, such as the first film product 261 and the second film product 262, which are arranged in parallel on the carrier tape roll, all fall within the detection area, i.e. the light source range 321, and fall within the first visual field 311 and the second visual field 312 of the corresponding first camera and second camera.
Has the advantages that: the surface defect detection equipment based on machine vision can quickly and efficiently search and early find the position of a defect area by adopting a machine vision system, can treat a defect film from the source, avoids subsequent program waste, better improves the quality and reduces the production cost. Furthermore, the film roll can be accurately positioned through the limiting rail, the vacuum adsorption plate and the like, the flatness of the film roll in the detection area is ensured to be consistent, the film products on the film roll are prevented from being raised or sunken, the detection consistency is ensured, and the film roll positioning device is particularly suitable for the situation that multiple rows of film products are arranged on the same film roll.
Claims (10)
1. A surface defect detection device based on machine vision is used for surface defect detection of a film roll, wherein the film roll comprises a carrier tape roll, a film product and release paper which is attached to the carrier tape roll and used for protecting the film product, and the surface defect detection device is characterized by comprising a rack, a film roll assembly used for conveying the film roll and a visual detection system used for detecting the film roll, wherein the rack comprises an operation table, side brackets arranged at two sides of the operation table and an upper frame arranged above the operation table, and the operation table comprises a detection area; the film winding group is used for conveying a film roll and comprises a feeding roller shaft, a release paper receiving roller shaft, a tightening roller shaft, a release paper feeding roller shaft and a discharging roller shaft which are sequentially connected, the feeding roller shaft and the discharging roller shaft are respectively arranged on side brackets at two sides of an operating platform, the release paper receiving roller shaft and the release paper feeding roller shaft are respectively arranged below the feeding roller shaft and the discharging roller shaft, the tightening roller shafts are divided into two groups and are respectively arranged at two ends of the operating platform, the visual detection system comprises an industrial camera, a light source and a PLC (programmable logic controller), the visual detection system is arranged on the rack and is arranged above a detection area through a system bracket, when a product enters the detection area, the PLC takes a picture for a camera trigger signal, and after the camera performs image taking analysis processing, the camera gives a qualified/unqualified signal to the PLC, and the PLC controller controls the actuating mechanism to act.
2. The visual system for inspecting the appearance of an energy storage battery pole piece as claimed in claim 1, wherein the tightening roller shafts of each group are two and are arranged up and down, and the film roll is arranged between the two tightening roller shafts.
3. The machine vision-based surface defect detection equipment as claimed in claim 1, wherein a mounting plate is further arranged on the operating platform, two parallel limiting rails are concavely arranged on the mounting plate, the film roll moves between the limiting rails, and the laser sensor is arranged on the limiting rails.
4. The machine-vision-based surface defect detecting apparatus of claim 3, wherein a vacuum suction plate is disposed below the limit rail.
5. The machine vision-based surface defect detection equipment as claimed in claim 4, wherein the vacuum adsorption plate is of a double-layer structure, the upper layer is provided with a plurality of adsorption small holes, the lower layer is provided with a vacuum adsorption port, and the vacuum adsorption port is connected with a vacuum pump through a vacuum tube.
6. The machine vision-based surface defect detecting device of claim 1, further comprising a display and a touch screen connected to the vision detecting system, wherein the display is fixed on the upper frame and faces an operation side, and the touch screen is arranged on the operation side of the operation table and used for displaying and manually operating the detection result.
7. The machine vision-based surface defect detection equipment as claimed in any one of claims 1-6, wherein the vision detection system further comprises an optical fiber sensor arranged at a feeding end and used for detecting whether a product on the film roll carrier tape enters a detection area, and if so, sending a trigger signal to start the light source and the camera to perform image acquisition.
8. The machine-vision based surface defect inspection apparatus of claim 7, wherein the vision inspection system further comprises a laser sensor disposed at the take-up end for indicating a defective area of a product on the film roll carrier upon receipt of a product defect signal.
9. The machine vision-based surface defect detecting device of claim 8, wherein the actuator comprises a driving motor for driving the film roll to move and a laser sensor for indicating a defect area of the film product, the laser sensor is arranged on a limiting track on a receiving side and used for stopping the movement of the film roll and indicating the defect area for manual operation when receiving a product defect signal.
10. The machine-vision based surface defect detection apparatus of claim 9, wherein multiple rows of film products are disposed in parallel on the carrier tape roll, sharing a set of said light sources, and wherein multiple sets of said fiber optic sensor, said laser sensor, said camera and said PLC controller are disposed in parallel for detecting multiple rows of film products disposed in parallel on the carrier tape roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177238.4A CN111665256A (en) | 2019-03-08 | 2019-03-08 | Surface defect detection equipment based on machine vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177238.4A CN111665256A (en) | 2019-03-08 | 2019-03-08 | Surface defect detection equipment based on machine vision |
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| CN111665256A true CN111665256A (en) | 2020-09-15 |
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| CN201910177238.4A Pending CN111665256A (en) | 2019-03-08 | 2019-03-08 | Surface defect detection equipment based on machine vision |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320409A (en) * | 2020-11-18 | 2021-02-05 | 深圳市智动力精密技术股份有限公司 | Coiled material automated inspection machine |
| CN114486903A (en) * | 2021-12-06 | 2022-05-13 | 浙江大学台州研究院 | Gray-scale self-adaptive coiled material detection system, device and algorithm |
| WO2023102952A1 (en) * | 2021-12-06 | 2023-06-15 | 浙江大学台州研究院 | Coiled material detection device, system and method capable of achieving real-time detection |
| CN120044034A (en) * | 2025-02-28 | 2025-05-27 | 安徽点宇新材料科技有限公司 | Optical film quality detection equipment and control method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548177A (en) * | 2007-08-23 | 2009-09-30 | 日东电工株式会社 | Method and apparatus for inspecting defect of laminated film |
| CN203845521U (en) * | 2014-04-25 | 2014-09-24 | 桐乡市红旗塑料包装袋厂 | Rolling device for packaging bag film rolls |
| CN204712163U (en) * | 2015-04-07 | 2015-10-21 | 深圳市威利特自动化设备有限公司 | A kind of structure improved dislocation double end coiled strip puncher |
| CN105510338A (en) * | 2016-01-07 | 2016-04-20 | 苏州市璟硕自动化设备有限公司 | Solder paste and red glue detection method |
| TWM531436U (en) * | 2016-06-03 | 2016-11-01 | Label Long Printing Mechanism Ltd Company | Online in-mold adhesion device |
| CN107097993A (en) * | 2017-05-19 | 2017-08-29 | 深圳市卓翼科技股份有限公司 | full-automatic film sticking machine |
| CN107490578A (en) * | 2016-06-12 | 2017-12-19 | 英泰克普拉斯有限公司 | Semiconductor element check device |
| CN207357496U (en) * | 2017-09-08 | 2018-05-15 | 佛山缔乐视觉科技有限公司 | A kind of automatic ceramic glue spreading apparatus based on machine vision |
| CN108693194A (en) * | 2018-06-22 | 2018-10-23 | 湖南大学 | Plate Production line lattice ink jet numbering machine device vision automatic checkout system |
| CN112858174A (en) * | 2021-03-05 | 2021-05-28 | 深圳鸿泽自动化科技有限公司 | AOI check out test set |
-
2019
- 2019-03-08 CN CN201910177238.4A patent/CN111665256A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548177A (en) * | 2007-08-23 | 2009-09-30 | 日东电工株式会社 | Method and apparatus for inspecting defect of laminated film |
| CN203845521U (en) * | 2014-04-25 | 2014-09-24 | 桐乡市红旗塑料包装袋厂 | Rolling device for packaging bag film rolls |
| CN204712163U (en) * | 2015-04-07 | 2015-10-21 | 深圳市威利特自动化设备有限公司 | A kind of structure improved dislocation double end coiled strip puncher |
| CN105510338A (en) * | 2016-01-07 | 2016-04-20 | 苏州市璟硕自动化设备有限公司 | Solder paste and red glue detection method |
| TWM531436U (en) * | 2016-06-03 | 2016-11-01 | Label Long Printing Mechanism Ltd Company | Online in-mold adhesion device |
| CN107490578A (en) * | 2016-06-12 | 2017-12-19 | 英泰克普拉斯有限公司 | Semiconductor element check device |
| CN107097993A (en) * | 2017-05-19 | 2017-08-29 | 深圳市卓翼科技股份有限公司 | full-automatic film sticking machine |
| CN207357496U (en) * | 2017-09-08 | 2018-05-15 | 佛山缔乐视觉科技有限公司 | A kind of automatic ceramic glue spreading apparatus based on machine vision |
| CN108693194A (en) * | 2018-06-22 | 2018-10-23 | 湖南大学 | Plate Production line lattice ink jet numbering machine device vision automatic checkout system |
| CN112858174A (en) * | 2021-03-05 | 2021-05-28 | 深圳鸿泽自动化科技有限公司 | AOI check out test set |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320409A (en) * | 2020-11-18 | 2021-02-05 | 深圳市智动力精密技术股份有限公司 | Coiled material automated inspection machine |
| CN114486903A (en) * | 2021-12-06 | 2022-05-13 | 浙江大学台州研究院 | Gray-scale self-adaptive coiled material detection system, device and algorithm |
| WO2023102952A1 (en) * | 2021-12-06 | 2023-06-15 | 浙江大学台州研究院 | Coiled material detection device, system and method capable of achieving real-time detection |
| CN114486903B (en) * | 2021-12-06 | 2024-05-14 | 浙江大学台州研究院 | A grayscale adaptive coil detection system, device and algorithm |
| CN120044034A (en) * | 2025-02-28 | 2025-05-27 | 安徽点宇新材料科技有限公司 | Optical film quality detection equipment and control method thereof |
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Application publication date: 20200915 |