CN110296995A - Image acquisition device applied to power cable damage detection - Google Patents
Image acquisition device applied to power cable damage detection Download PDFInfo
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- CN110296995A CN110296995A CN201910570473.8A CN201910570473A CN110296995A CN 110296995 A CN110296995 A CN 110296995A CN 201910570473 A CN201910570473 A CN 201910570473A CN 110296995 A CN110296995 A CN 110296995A
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- 238000001514 detection method Methods 0.000 title abstract description 25
- 238000012360 testing method Methods 0.000 claims description 34
- 238000004080 punching Methods 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 description 1
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000011241 protective layer Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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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
- G01N21/8806—Specially adapted optical and illumination features
-
- 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
- G01N21/8901—Optical details; Scanning details
- G01N21/8903—Optical details; Scanning details using a multiple detector array
-
- 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
-
- 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
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/04—Batch operation; multisample devices
- G01N2201/0438—Linear motion, sequential
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
- G01N2201/06146—Multisources for homogeneisation, as well sequential as simultaneous operation
- G01N2201/06153—Multisources for homogeneisation, as well sequential as simultaneous operation the sources being LED's
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- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Textile Engineering (AREA)
- Engineering & Computer Science (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
本发明公开了一种用于电力电缆破损检测的图像采集装置，包括暗箱箱体，暗箱箱体其中两个相对的面开设有电缆穿孔，剩余四个面上均开设有采集机构安装孔；待测电缆穿过电缆穿孔；采集机构安装孔内均安装有图像采集设备，且暗箱箱体内部固定设置有光源机构。图像采集设备为CCD相机，光源机构为LED环形光源。本发明提供的一种用于电力电缆表面破损检测的图像采集装置，能屏蔽环境光对电力电缆图像质量的影响，克服电缆材质光滑和反光等因素，实时获取电缆表面细节视频图像，以实现高的破损检测率。
The invention discloses an image acquisition device for power cable damage detection, which comprises a black box body, wherein two opposite surfaces of the dark box box are provided with cable perforations, and the remaining four surfaces are provided with acquisition mechanism installation holes; The measuring cable passes through the cable perforation; the image acquisition equipment is installed in the installation holes of the acquisition mechanism, and the light source mechanism is fixed inside the dark box. The image acquisition device is a CCD camera, and the light source mechanism is an LED ring light source. The invention provides an image acquisition device for detecting damage on the surface of a power cable, which can shield the influence of ambient light on the image quality of the power cable, overcome factors such as the smoothness and reflection of the cable material, and obtain detailed video images of the cable surface in real time, so as to achieve high damage detection rate.
Description
Technical field
The present invention relates to power cable defect detection equipment technical fields, more particularly to a kind of to be applied to electric power
The image collecting device of cable failure detection.
Background technique
Power cable is the basic profile for conveying electric energy, is necessary basic product in electrified and informationized society,
Critically important effect is played in the infrastructure in China, is widely used in each department of national economy, is each industry, state
Anti- construction and significant enginnnring etc. provide important mating support, are modern economy and the basic guarantee that society runs well.
Power cable is mainly made of conductor thread core, insulating layer, shielded layer and four part of protective layer, and cable skin is slightly broken
It, can be because water inlet corrosion, reduces current-carrying capacity of cable, more serious breakage, when long although damage will not influence electric property
Between overheat will aging, cable can be breakdown.Therefore, cable failure will cause electric leakage, or even personal contact casualty accident occurs；
Short circuit thermal occurs, causes fire, causes huge property loss；Cause and have a power failure, needs repairing, cause economic loss etc..Especially
It is that damage testing is carried out to cable in cable laying construction front end, can have both clearly defined cable and go wrong in which in stage,
The case where avoiding manufacturer, construction party and user's responsibility from mutually shifting responsibility onto others, can also to avoid have damaged cable installation it is good after it is right
Security risk caused by electric power safety is run.Therefore, before power cable laying, the breakage of its any degree is examined in real time
Measuring tool has important practical significance.
Currently, traditional electric cable stoppage detection mostly uses lacking for artificial detection or laser detecting apparatus detection cable surface
It falls into, there are high omission factor, low efficiencys and the obvious drawbacks such as artificial detection is at high cost for artificial detection；And there is detection in laser detecting apparatus
The critical defect of blind area, be easy to cause missing inspection.
Moreover, generally there are reflection, refraction and absorbing phenomenons for light irradiation object, and the surface of cable is smooth, is easy to produce
Mirror-reflection phenomenon, if directlying adopt open light-source system, the image brightness distribution of acquisition is uneven, is easy to produce
Exposure or supersaturation；Meanwhile mirror-reflection can also make surrounding objects be easy to be mapped in acquisition image, cause detection error.
Therefore, the damaged for power cable of power cable tiny defect can be detected to non-blind area by how providing one kind
The problem of image collecting device of detection is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, can be shielded the present invention provides a kind of image collecting device applied to power cable damage testing
Influence of the environment light to power cable picture quality, the factors such as overcome cable material smooth and reflective obtain cable surface in real time
Details video image, to realize high damage testing rate.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of image collecting device applied to power cable damage testing, including camera bellows cabinet, the camera bellows cabinet its
In two opposite faces offer cable punching hole, offer collecting mechanism mounting hole on remaining four faces；Cable under test passes through
The cable punching hole；Image capture device is mounted in the collecting mechanism mounting hole, and the camera bellows box house is fixed
It is provided with light source mechanism.
Image collecting device disclosed by the invention for power cable damage testing, camera bellows case construction one kind are closed
Left and right two sides is opened up cable punching hole by lighting system, passes through cable under test, image capture device is fixedly mounted on other four
The center in face is provided with light source mechanism in camera bellows cabinet, using the principle of visual imaging, is scientifically and rationally set using Image Acquisition
Standby and light source mechanism, can 360 degree without dead angle power cable surface blemish defect is accurately obtained, can with non-blind area examine
The tiny defect for measuring power cable, it is small even if defect and also high speed and can detect.
Preferably, described image acquisition equipment is CCD camera.
Preferably, the center in four faces in the front and back of the camera bellows cabinet or more is arranged in the CCD camera, and passes through letter
Number line connect with detection early warning platform, and CCD camera may be implemented to power cable without dead angle capture, when CCD camera detects electricity
When power cable surface breakage has abnormal, detection early warning platform is transmitted to by signal wire, realizes sound-light alarm.
Preferably, the light source mechanism is LED annular light source, LED light source energy-saving and environmental protection, efficient, long service life.
Preferably, the LED annular light source is looped around around the cable under test, guarantees good illuminating effect.
Preferably, the LED annular light source is 2.
Preferably, the LED annular light source is the more LED light source lamp dot matrix groups of annular, and the spacing of adjacent lamps is equal, can be with
Guarantee the uniformity of the luminous intensity in detection zone, the image that can be got well improves the resolution ratio of whole system, simplifies software and calculates
The operation of method, and then enhance the real-time of whole system, improve detection efficiency.
It preferably, further include that the light source being fixed on outside camera bellows adjusts unit.
Preferably, rubber round frame and baffle are provided on the cable punching hole.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides one kind to be applied to electric power
The image collecting device of cable failure detection, by a kind of closed lighting system of camera bellows case construction, for solving strong mirror surface
The problem of reflection, the center on left and right two sides offer cable punching hole, and cable under test is passed through from cable punching hole, up and down in the four sides of front and back
The heart offers collecting mechanism mounting hole, is equipped with CCD camera in collecting mechanism mounting hole, the figure for cable under test surface quality
As acquisition；Camera bellows box house is looped around the more LED light sources of annular, for providing light source for cable under test.
It is disclosed by the invention for power cable surface fracture detection image collecting device, can shielding environment light to electricity
The influence of power cable picture quality, the factors such as overcome cable material smooth and reflective obtain cable surface details video figure in real time
Picture, to realize high damage testing rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing be the present invention relates to position of the image collecting device in cable laying and detection system exemplary application
Set schematic diagram；
Fig. 2 attached drawing is the power cable insulation surface defects detection systematic schematic diagram of application example of the present invention；
Fig. 3 attached drawing is the structural schematic diagram of image collecting device provided by the invention；
Fig. 4 attached drawing is the diagrammatic cross-section of image collecting device provided by the invention；
Fig. 5 attached drawing provides the irradiating structure schematic diagram of light source mechanism for the present invention.
Wherein, appended drawing reference are as follows:
1- camera bellows cabinet, 2- cable under test, 3-CCD camera, 4- signal wire, 5- detect early warning platform, 6-LED ring light
Source, 7- rubber round frame, 8- baffle, 9- cable hoist, 10- cable drawing machine, 11- support pulley, 12- cable shaft, 13- image
Processing unit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of image collecting devices applied to power cable damage testing, as shown in Figure 1,
Be set to cable under test 2 be laid with and detection system in, cable drawing machine 10 is drawn from cable hoist 9 into cable shaft 12,
Cable shaft 12 enters well head and is equipped with support pulley 11, the Image Acquisition disclosed by the invention for the detection of power cable surface fracture
Device is fixed on the workbench among cable drawing machine 10 and support pulley 11.
Referring to Fig. 2, whole system principle is shown, image capture device is by more CCD cameras 3 and two groups of annular LED light sources 6
Composition, two groups of annular LED light sources constitute equal uniform brightness, and every CCD camera 3 can be covered each by three more than cable 2 to be measured/
One region treats survey line cable 2 and carries out 360 ° around scanning, can non-blind area collect uniformly clearly image.Cable under test 2 passes through
The scanning area of CCD camera 3, more CCD cameras 3 synchronize shooting according to the collected line speed signal of encoder,
Then acquired image is transmitted to image processing apparatus 13 by system, is analyzed by efficient learning algorithm image, from
And it effectively finds and determines that flaw is bad, while by detection 5 automatic sound-light alarm of early warning platform, reminding the work people at scene
Member.
As shown in figure 3, being used for the image collecting device of power cable damage testing, including camera bellows cabinet 1, camera bellows cabinet 1
On front and back up and down four faces center at be provided with CCD camera 3, be provided with cable punching hole at the center on left and right two sides,
Cable under test 2 passes through cable punching hole, and rubber round frame 7 and baffle 8 are provided on cable punching hole, it is ensured that internal LED light source 6 is complete
For irradiating cable under test 2, enhances the real-time of system, improve detection efficiency.
As shown in figure 4, the position of CCD camera 3 and cable under test 2 that about 1 four faces in front and back of camera bellows cabinet are installed is closed
It is diagrammatic cross-section；Can 360 degree without dead angle power cable surface blemish defect is accurately obtained, can with non-blind area examine
The tiny defect for measuring power cable, it is small even if defect and also high speed and can detect.
As shown in figure 5, the relative position relation figure of cable under test 2 and LED light source 6.On the lamp source disc of annulus, it is mounted with
The more LED light source lamp dot matrix groups of annular, constitute the dispersion effect of light source, avoid forming speck on 2 surface of cable under test, influence to detect
Effect.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of image collecting device for power cable damage testing, which is characterized in that described including camera bellows cabinet (1)
The opposite face of camera bellows cabinet (1) two of them offers cable punching hole, offers collecting mechanism mounting hole on remaining four faces；
Cable under test (2) passes through the cable punching hole；Image capture device is mounted in the collecting mechanism mounting hole, and described dark
Light source mechanism is fixedly installed inside box body (1).
2. a kind of image collecting device for power cable damage testing according to claim 1, which is characterized in that institute
Stating image capture device is CCD camera (3).
3. a kind of image collecting device for power cable damage testing according to claim 2, which is characterized in that institute
The center that four faces up and down are arranged before and after the camera bellows cabinet (1) in CCD camera (3) is stated, and passes through signal wire (4) and inspection
Survey early warning platform (5) connection.
4. a kind of image collecting device for power cable damage testing according to claim 3, which is characterized in that institute
Stating light source mechanism is LED annular light source (6).
5. a kind of image collecting device for power cable damage testing according to claim 4, which is characterized in that institute
LED annular light source (6) is stated to be looped around around the cable under test (2).
6. a kind of image collecting device for power cable damage testing according to claim 5, which is characterized in that institute
Stating LED annular light source (6) is 2.
7. a kind of image collecting device for power cable damage testing according to claim 6, which is characterized in that institute
LED annular light source (6) are stated as the more LED light source lamp dot matrix groups of annular, and the spacing of adjacent lamps is equal.
8. a kind of image collecting device for power cable damage testing according to claim 7, which is characterized in that also
Unit is adjusted including being fixed on the external light source of the camera bellows cabinet (1).
9. a kind of image collecting device for power cable damage testing according to claim 8, which is characterized in that institute
It states and is provided with rubber round frame (7) and baffle (8) on cable punching hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910570473.8A CN110296995A (en) | 2019-06-27 | 2019-06-27 | Image acquisition device applied to power cable damage detection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910570473.8A CN110296995A (en) | 2019-06-27 | 2019-06-27 | Image acquisition device applied to power cable damage detection |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351801A (en) * | 2020-03-11 | 2020-06-30 | 春光线缆有限公司 | Wire and cable defect detection system |
| CN112161985A (en) * | 2020-07-18 | 2021-01-01 | 国网辽宁省电力有限公司电力科学研究院 | Detection device, detection method, detection device, and computer-readable storage medium |
| CN112487916A (en) * | 2020-11-25 | 2021-03-12 | 上海电力大学 | Binocular three-dimensional identification system for electrical equipment |
| CN113478133A (en) * | 2021-08-16 | 2021-10-08 | 南通科钛机器人系统有限公司 | Six-axis robot is with full-automatic welded platform that has protective structure |
| CN113533367A (en) * | 2021-05-24 | 2021-10-22 | 国网河北省电力有限公司涉县供电分公司 | Surface detection and damage repair device for power supply overhead cables |
| CN114047196A (en) * | 2021-10-25 | 2022-02-15 | 上海仪电智能科技有限公司 | High-precision detection equipment for surface flaws of cable and using method thereof |
| CN114062369A (en) * | 2021-11-12 | 2022-02-18 | 佛山光之瞳电子科技有限公司 | A kind of testing equipment and testing method for the production quality of power cable joints |
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