CN105954008A - Real-time fiber winding defect visual inspection device based on double CDDs - Google Patents
Real-time fiber winding defect visual inspection device based on double CDDs Download PDFInfo
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- CN105954008A CN105954008A CN201610395902.9A CN201610395902A CN105954008A CN 105954008 A CN105954008 A CN 105954008A CN 201610395902 A CN201610395902 A CN 201610395902A CN 105954008 A CN105954008 A CN 105954008A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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Abstract
The present invention discloses a real-time fiber winding defect visual inspection device based on double CDDs. The device comprises a visual detection unit which comprises a global CCD camera which has a fixed position and is used for collecting a whole fiber winding image and a local CCD camera which has an adjustable position and is used for collecting a fiber winding local image. Both the global CCD camera and the local CCD camera are connected to an industrial computer. The industrial computer is connected to the local CCD camera through an electrical transmission unit and is connected to a display screen. According to the device, the double-CCD camera automatic online detection technology is used, the working position of the local CCD camera is adjusted through tracking fiber winding wire diameter change by the global CCD camera, thus the local CCD camera carries out online monitoring on a fiber winding in real time, the improvement of the fiber winding quality and defect detection efficiency is facilitated, the production cost is reduced, at the same time, the improvement of the degree of automation of fiber winding defect detection is facilitated, in an online real-time detection process, the fiber winding defect image information is recorded, and the problem backtracking is helped.
Description
Technical field
The invention belongs to industrial vision and calculate field, detect device particularly to a kind of real-time Optical Fiber Winding defective visions based on double CCD.
Background technology
The longest owing to completing a luminous fine winding, and wrap volume is big, the number of plies is many, and in winding process, optical fiber winding need to move left and right within the specific limits, the most easily occur optical fiber climb platform, extrude, sink, glide, the defect such as brush bristles residual.Present stage Optical Fiber Winding quality is checked mainly by human eye, the situation of " missing inspection " easily occurs.
For Optical Fiber Winding defects detection, the Chinese patent of Application No. 201210189025.1 discloses a kind of real-time optical fiber coiling defect inspection method based on machine vision technique, it is to use machine vision technique, by sampling Detection method, the defect of detection ordinary optic fibre ring, the method is applicable to that volume is little, speed of wrap is compared with the object slow, precision is low.The Chinese patent of Application No. 201210477554.1 discloses a kind of on-line monitoring for fiber optic loop coiling and warning system and method, it is that light source is irradiated along fiber optic loop tangential direction, shadow is produced by imaging system, shadow according to fiber optic loop judges the defect of optical fiber, and whether the method can only have folded fine, the fine defect of leakage by detection fiber ring.
Summary of the invention
It is an object of the invention to, for above-mentioned the deficiencies in the prior art, it is provided that a kind of real-time Optical Fiber Winding defective visions based on double CCD detection device, it is adaptable to the optical fiber winding of various volumes and speed of wrap, it is possible to detect multiple winding defect, accuracy of detection is high.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
A kind of real-time Optical Fiber Winding defective visions based on double CCD detection device, including visual detection unit, described visual detection unit include position fixing for the adjustable Local C CD camera for gathering optical fiber winding topography of the overall CCD camera and position that gather whole optical fiber winding image, described overall situation CCD camera and local CCD camera all electrically connect with industrial computer, this industrial computer is in transmission connection with Local C CD camera by Electrified Transmission unit, and this industrial computer electrically connects with display screen simultaneously.
By said structure, the overall situation CCD camera visual field is relatively big, is used for observing the overall situation, and whether detection fiber winding is close to Local C CD camera and the outer dia of optical fiber winding.Local C CD camera fields of view is less, is used for observing optical fiber winding local, gathers image in order to judge optical fiber winding whether existing defects.Due to Local C CD camera precision is high and can not autozoom, when optical fiber winding radius change, Local C CD camera must be by the movable imaging to ensure optical fiber winding all the time on Local C CD camera focal plane.Industrial computer controls the position of Electrified Transmission unit regulation Local C CD camera.The present invention uses the defect in double CCD camera detection spindle optical fiber winding process, and efficiently control optical fiber winding takes figure scope, improves the optical fiber defects detection rate around winding, reduces production cost.
As a kind of optimal way, the camera lens of described overall situation CCD camera is perpendicular to the axis of optical fiber winding, and the visual angle of overall situation CCD camera covers the external diameter of whole optical fiber winding.
Further, described vision inspection apparatus also includes two position adjustable arc light sources, and said two arc light source divides the left and right sides being positioned at Local C CD camera, and the radian of these two arc light sources is consistent with the radian of optical fiber winding.
Use the arc light source consistent with optical fiber winding radian, enable light source to be distributed uniformly, thus obtain the imaging effect of optimum.
As a kind of optimal way, described Electrified Transmission unit includes PLC, motor and guide rail, and described industrial computer is electrically connected with motor by PLC, and this motor is in transmission connection with Local C CD camera by guide rail.
As a kind of optimal way, described motor is in transmission connection with said two arc light source by guide rail.
Local C CD camera and two arc light sources are fixedly mounted on guide rail, and arc light source, for supplementing light source to Local C CD camera, makes luminous energy uniformly the field range of Local C CD camera be illuminated.
Further, described PLC is connected with alarm.
As defective, then industrial computer control PLC sends alarm signal, alarm equipment alarm.
The present invention uses double CCD camera automatic on-line detection technique, by overall situation CCD camera, the tracking of optical fiber winding wire diameter size variation is adjusted effectively the operating position of Local C CD camera, so that Local C CD camera is to optical fiber winding real time on-line monitoring, the method is conducive to improving optical fiber coiling quality and defects detection efficiency, reduce production cost, be conducive to improving the automaticity of optical fiber coiling defects detection simultaneously, simultaneously during on-line real-time measuremen, record Optical Fiber Winding defect image information, contributes to problem backtracking.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is overall situation CCD camera and the station structure figure of local CCD camera.
Fig. 3 is workflow diagram of the present invention.
Wherein, 1 is overall situation CCD camera, and 2 is Local C CD camera, and 3 is industrial computer, and 4 is display screen, and 5 is arc light source, and 6 is PLC, and 7 is motor, and 8 is guide rail, and 9 is alarm, and 10 is mouse, and 11 is optical fiber winding.
Detailed description of the invention
The present invention is to install visual detection unit additional on the control station of original optical fiber winding 11 to carry out detection fiber winding mass.Optical fiber winding to be detected 11 is in spindle, and optical fiber winding 11 side-to-side movement during coiling.
As shown in Figure 1 to Figure 2, one embodiment of the invention includes visual detection unit, described visual detection unit include position fixing for the adjustable Local C CD camera 2 for gathering optical fiber winding 11 topography of overall CCD camera 1 and position gathering whole optical fiber winding 11 image, described overall situation CCD camera 1 and local CCD camera 2 are all electrically connected with industrial computer 3 by netting twine, this industrial computer 3 is in transmission connection with Local C CD camera 2 by Electrified Transmission unit, and this industrial computer 3 electrically connects with display screen 4 simultaneously.Industrial computer 3 is also connected with mouse 10 and keyboard.
Overall situation CCD camera 1 and local CCD camera 2 are high accuracy CCD camera.
Overall situation CCD camera 1 and local CCD camera 2 are installed in optical fiber winding 11 dead ahead.
The camera lens of described overall situation CCD camera 1 is perpendicular to the axis of optical fiber winding 11, and the visual angle of overall situation CCD camera 1 covers the external diameter of whole optical fiber winding 11.
Described vision inspection apparatus also includes two position adjustable arc light sources 5, and said two arc light source 5 points is positioned at the left and right sides of Local C CD camera 2, and the radian of these two arc light sources 5 is consistent with the radian of optical fiber winding 11.Arc light source 5 is arc LED light source.
Described Electrified Transmission unit includes that PLC6, motor 7 and guide rail 8, described industrial computer 3 are electrically connected with motor 7 by PLC6, and this motor 7 is in transmission connection with Local C CD camera 2 by guide rail 8.
Described motor 7 is in transmission connection with said two arc light source 5 by guide rail 8.
Described PLC6 is connected with alarm 9.Alarm 9 is audible-visual annunciator 9.
The workflow of the present invention is as shown in Figure 3.
Specifically, when industrial computer 3 collects the picture of overall situation CCD camera 1, identify optical fiber winding 11 movement position and optical fiber winding 11 external diameter through Image semantic classification, Fast image segmentation, rim detection, rotating shaft extraction, pivot location change-detection, then draw the working distance deviation of Local C CD camera 2 and optical fiber winding 11 local with the contrast conversion of original outer diameter size.Industrial computer 3 sends a command to PLC6, PLC6 and identifies instruction and signal is passed to motor 7, and motor 7 controls guide rail 8 thus drives Local C CD camera 2 to carry out radial motion, it is ensured that optical fiber winding 11 imaging in Local C CD camera 2 is constantly in focal length state.
When optical fiber winding 11 imaging is in the focal plane of Local C CD camera 2, industrial computer 3 gathers the picture of Local C CD camera 2, Local C CD camera 2 image detection algorithm rough flow is Image semantic classification, image segmentation, Preliminary detection, texture feature extraction and Extraction of Geometrical Features, then according to the feature extracted, be wound arranging compactness detection, optical fiber width is wound around number of turn detection, end face extrusion with climb platform defects detection, the defect such as whether final detection fiber winding 11 climbs platform, extrude, sink, glide, bristle residual, output detections result.
To sum up, during winding, whole optical fiber winding 11 image is passed through network collection to industrial computer 3 by overall situation CCD camera 1, industrial computer 3 monitors the change of optical fiber winding 11 external diameter in real time, thus judge that Local C CD camera 2 is whether in the position range of applicable shooting, and control motor 7 radial motion according to the size of optical fiber winding 11 outer dia calculated, motor 7 thus drive two arc light sources 5 and Local C CD camera 2 to move so that with optical fiber winding 11 local just in the operating position of Local C CD camera 2 camera lens blur-free imaging.Optical fiber winding 11 local high-definition image collection to industrial computer 3, is monitored the defect in winding process in real time, and is accomplished that all standing is sampled by Local C CD camera 2 by algorithm process.After being wound around a circle, it is fibre external diameters that optical fiber winding 11 external diameter increases 2R(R), the graphical analysis that now industrial computer 3 is gathered by overall situation CCD camera 1, available optical fiber winding 11 external diameter increases 2R, industrial computer 3 will control motor 7 by PLC6 makes it drive guide rail 8 horizontal direction to be moved rearwards by 2R distance, and Local C CD camera 2 horizontal direction is moved rearwards by 2R simultaneously.By that analogy until coiling completes.When local CCD camera 2 collects picture and there is drawbacks described above by Algorithm Analysis, then PLC6 sends alarm signal, and audible-visual annunciator 9 is reported to the police.
In the present invention, optical fiber winding 11 picture utilizing overall situation CCD camera 1 to collect asks optical fiber winding 11 external diameter can continue to use the method seeking external diameter in existing image analyzing and processing technology.The optical fiber winding 11 local picture that algorithm simultaneously can not also be used to collect local CCD camera 2 carries out image analysis processing, but after Local C CD camera 2 collects optical fiber winding 11 local picture, directly utilize industrial computer 3 picture is delivered to display screen 4 to show, utilize and manually the picture collected is carried out defect recognition, the picture precision collected due to apparatus of the present invention is high, compared to the winding defect of original artificial with the naked eye Direct Recognition optical fiber winding 11, even if also can be reduced the loss of optical fiber winding 11 defect by the defect on artificial judgment picture.When detecting abnormal, operator controls alarm 9 by industrial computer 3 and reports to the police.
Claims (6)
1. real-time Optical Fiber Winding defective visions based on a double CCD detection device, including visual detection unit, it is characterized in that, described visual detection unit include position fixing for the adjustable Local C CD camera (2) for gathering optical fiber winding (11) topography of overall CCD camera (1) and position gathering whole optical fiber winding (11) image, described overall situation CCD camera (1) and local CCD camera (2) all electrically connect with industrial computer (3), this industrial computer (3) is in transmission connection with Local C CD camera (2) by Electrified Transmission unit, this industrial computer (3) electrically connects with display screen (4) simultaneously.
2. real-time Optical Fiber Winding defective visions based on double CCD detection device as claimed in claim 1, it is characterized in that, the camera lens of described overall situation CCD camera (1) is perpendicular to the axis of optical fiber winding (11), and the visual angle of overall situation CCD camera (1) covers the external diameter of whole optical fiber winding (11).
3. real-time Optical Fiber Winding defective visions based on double CCD detection device as claimed in claim 1, it is characterized in that, described vision inspection apparatus also includes two positions adjustable arc light source (5), said two arc light source (5) point is positioned at the left and right sides of Local C CD camera (2), and the radian of these two arc light sources (5) is consistent with the radian of optical fiber winding (11).
4. real-time Optical Fiber Winding defective visions based on double CCD detection device as claimed in claim 3, it is characterized in that, described Electrified Transmission unit includes PLC(6), motor (7) and guide rail (8), described industrial computer (3) passes through PLC(6) electrically connect with motor (7), this motor (7) is in transmission connection with Local C CD camera (2) by guide rail (8).
5. real-time Optical Fiber Winding defective visions based on double CCD detection device as claimed in claim 4, it is characterised in that described motor (7) is in transmission connection with said two arc light source (5) by guide rail (8).
6. based on double CCD the real-time Optical Fiber Winding defective vision detection device as described in claim 4 or 5, it is characterised in that described PLC(6) it is connected with alarm (9).
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| CN201610395902.9A CN105954008A (en) | 2016-06-07 | 2016-06-07 | Real-time fiber winding defect visual inspection device based on double CDDs |
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| CN201610395902.9A CN105954008A (en) | 2016-06-07 | 2016-06-07 | Real-time fiber winding defect visual inspection device based on double CDDs |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226178A (en) * | 2017-12-26 | 2018-06-29 | 广东美的智能机器人有限公司 | equipment appearance detecting system |
| CN108489986A (en) * | 2018-03-19 | 2018-09-04 | 长沙理工大学 | A kind of increasing material manufacturing on-line checking and restorative procedure |
| CN109862256A (en) * | 2018-12-25 | 2019-06-07 | 武汉凌云光电科技有限责任公司 | A kind of device and localization method of vision positioning band fibre |
| CN113432592A (en) * | 2021-06-23 | 2021-09-24 | 中国船舶重工集团公司第七0七研究所 | Automatic winding defect identification and correction system of optical fiber ring winding machine |
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| CN108489986A (en) * | 2018-03-19 | 2018-09-04 | 长沙理工大学 | A kind of increasing material manufacturing on-line checking and restorative procedure |
| CN109862256A (en) * | 2018-12-25 | 2019-06-07 | 武汉凌云光电科技有限责任公司 | A kind of device and localization method of vision positioning band fibre |
| CN109862256B (en) * | 2018-12-25 | 2020-10-27 | 武汉凌云光电科技有限责任公司 | Device and method for visually positioning belt fiber |
| CN113432592A (en) * | 2021-06-23 | 2021-09-24 | 中国船舶重工集团公司第七0七研究所 | Automatic winding defect identification and correction system of optical fiber ring winding machine |
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Application publication date: 20160921 |