CN107153068A - A kind of defect inspection device and measuring method - Google Patents
A kind of defect inspection device and measuring method Download PDFInfo
- Publication number
- CN107153068A CN107153068A CN201710430748.9A CN201710430748A CN107153068A CN 107153068 A CN107153068 A CN 107153068A CN 201710430748 A CN201710430748 A CN 201710430748A CN 107153068 A CN107153068 A CN 107153068A
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- Prior art keywords
- expansion link
- pipeline
- camera
- defect inspection
- defect
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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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- 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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8874—Taking dimensions of defect into account
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (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)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of defect inspection device and measuring method, including fixed support (1), it is arranged on the expansion link (2) in the middle of fixed support (1), expansion link lower end is connected with the test platform (3) of detection device, and described test platform (3) connects computer by wire.The present invention obtains the clear pictures in different depth pipeline by way of being taken pictures in mouth of pipe zoom, and by photographic intelligence and correspondence camera internal reference, the positional distance and size of defect of pipeline are measured according to geometrical relationship.Compared with conventional pipeline periscope is detected, while efficient work is ensured, the accurate measurement to defect of pipeline position and size is realized；Compared with conventional pipeline robot is measured, on the premise of defect of pipeline position accurate positioning is ensured, the accurate measurement to defect of pipeline size is realized, and substantially increase operating efficiency.
Description
Technical field
The present invention relates to a kind of defect inspection device and measuring method, specially a kind of detection means for pipeline
And defect of pipeline position, the accurate measurement method of size.
Background technology
In recent years, with the continuous quickening of urbanization process, urban population is significantly increased, municipal drainage, blow-off line number
Amount is increased sharply with length, because municipal engineering environmental problem is highlighted caused by defect of pipeline.For example, due to pipeline breaking, mismatch etc.
Structural defect causes pipeline liquid to flow out pipeline, not only brings pollution to surrounding enviroment, and washes away leaching for a long time, past
Toward tube circumference surface collapse can be caused, huge potential safety hazard is brought；In addition, the feature such as plumbing obstacles and deposition lacks
Fall into, greatly reduce the transportation function of pipeline, cause waterlogging caused by excessive rain season city seeping phenomenon serious, give city dweller's lives and properties peace
Bring grave danger entirely.
It is to ensure the necessary means that function pipeline is normally run that pipeline, which is periodically detected and repaired,.At present, applied to pipeline
The method of detection mainly includes pipeline periscope detection and detects two kinds with pipe robot., will during pipeline periscope detection operations
Camera is probeed near inspection shaft inner spout, gathers pipeline internal image, testing staff is according to the image of display and regarding for recording
Frequency file provides appraisal report to pipeline conditions；During pipe robot detection operations, camera is carried by pipe robot and entered
Enter inside pipeline, gather pipeline internal image, testing staff is according to the image of display and the video file of recording to pipeline conditions
Provide appraisal report.The characteristics of pipeline periscope detection is had rapidly and efficiently, but because camera is located at the mouth of pipe, belong to remote
Shoot, the judgement subjectivity to pipeline internal flaw position and size is big；Pipe robot is detected, according to robot crawling distance
The accurate position for judging defect of pipeline of energy, despite shooting at close range, but passes through image subjective judgement flaw size size
Larger error is still suffered from, and due to needing the whole pipeline of robot crawling, detection efficient is extremely low.
Therefore, a kind of efficient, accurate pipe detection device and its detection method are studied, being one is worth research
Problem.
The content of the invention
The problem of existing for above-mentioned existing pipeline inspection technology, the invention provides a kind of pipe detection device and pipeline
The accurate measurement method of defective locations, size, while detection efficient is ensured can be greatly improved defect of pipeline position, big
The accuracy of small judgement.
The object of the present invention is achieved like this：
A kind of defect inspection device, including fixed support (1), are arranged on the expansion link in the middle of fixed support (1)
(2), expansion link lower end is connected with the test platform (3) of detection device, and described test platform (3) is connected by wire to be counted
Calculation machine；
Described fixed support (1) is the telescope support set in triangle solid space, constitutes the expansion bracket of telescope support
The upper end of support bar with support terminal pad by being hinged, and middle part is positioned by locating rod and the expansion link being enclosed on expansion link (2)
Disk is hinged, and lower end is contacted with ground；
It is fixed in the middle of the upper end of described expansion link (2) and support terminal pad, stretching for flexible connection is cased with the body of rod of middle part
Contracting bar positioning disk, lower end is located at directly over pipe under test inspection shaft well head, and is connected with test platform (3)；
It is provided with the body of rod of described expansion link (2) and is accurate to millimetre-sized scale marker；
Described test platform (3) includes the deck (11) that suspension (12) is fixed with suspension (12) top, and deck (11) is same
When be connected with expansion link lower end；Suspension (12) bottom is connected with detection device housing (5), is provided with detection device housing (5)
Detection device；Described detection device includes being arranged on the control panel (9) controlled in detection device housing (5) and by computer,
Control panel (9) connects and controls zoom camera (6) respectively, stepper motor (7) and illuminating lamp (13)；
The stepper motor (7) is arranged in detection device housing (5), and is acted on and suspension by driving wheel (10)
(12) the camera anglec of rotation, is adjusted；
Described detection device housing (5) is provided with protecgulum (4) and bonnet (8)；
The zoom camera (6) is located in detection device housing (5), for zoom function camera, focal length is by accurate
Determine；
Camera position is adjusted by expansion link (2), stepper motor (7), makes camera lens align with tube axis direction；
Described defect inspection device detects pipeline defective locations, the accurate measurement method of size, it is characterised in that
Concretely comprise the following steps：
A, fixed support (1) is fixed on pipe under test inspection shaft well head；
B, test platform (3) fixed by deck (11) with expansion link (2) lower end, the middle part and upper end of expansion link (2)
It is connected respectively with support (1)；
C, adjustment expansion link (2) length, make zoom camera (6) be located at pipe under test center；
D, by computer by control panel (9) control stepper motor (7), adjust camera (6) angle, make camera lens pair
Quasi- conduit axis direction；
E, change camera (6) shooting focal length, imaging of taking pictures is carried out to pipeline inside, and image data and corresponding focal length are joined
Number is transferred to computer；
F, with reference to focus information, camera internal reference and caliber information, be created as using geometrical relationship as picture and inner-walls of duct
Corresponding relation, according to imaging measuring pictures defect of pipeline positional distance and size.
Positive beneficial effect：The present invention obtains the clear photograph in different depth pipeline by way of being taken pictures in mouth of pipe zoom
Piece, by photographic intelligence and correspondence camera internal reference, the positional distance and size of defect of pipeline are measured according to geometrical relationship.With
The detection of conventional pipeline periscope is compared, and while efficient work is ensured, is realized to the accurate of defect of pipeline position and size
Measurement；Compared with conventional pipeline robot is measured, on the premise of defect of pipeline position accurate positioning is ensured, realize to pipeline
The accurate measurement of flaw size, and substantially increase operating efficiency.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the side structure profile of test platform；
Fig. 3 is the positive structure schematic of test platform；
Fig. 4 is that pipeline is imaged measuring pictures defect of pipeline geometrical relationship figure.
In figure：Fixed support 1, expansion link 2, test platform 3, protecgulum 4, detection device casing 5, zoom camera 6, stepping electricity
Machine 7, bonnet 8, control panel 9, driving wheel 10, deck 11, suspension 12, illuminating lamp 13.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the inventive system comprises 1, fixed support, 2, expansion link, 3, test platform, 4, protecgulum,
5th, shell, 6, zoom camera, 7, stepper motor, 8, bonnet, 9, control panel, 10, driving wheel, 11, deck, 12, suspension, 13, shine
Bright lamp.
The fixed support (1) is arranged in inspection shaft well head, is connected by expansion link 2 with test platform 3；
The expansion link (2) has scale marker, and precision is grade；
The zoom camera (6) is located in test platform (3), for zoom function camera, and known to camera internal reference；
The stepper motor (7) is acted on and suspension (12), the regulation camera anglec of rotation by driving wheel (10)；
The illuminating lamp (13) can need adjustment brightness and illumination distances according to detection；
As shown in figure 3, the control panel (9) is connected with zoom camera (6), stepper motor (7), illuminating lamp (13), and led to
Cross connecting line with computer to be connected, zoom camera (6) focal length, stepper motor (7) anglec of rotation and illuminating lamp (13) can be controlled
Brightness.
The method of the present invention is concretely comprised the following steps：
A, fixed support 1 is fixed on to pipe under test inspection shaft well head；
B, test platform 3 is connected by expansion link 2 with support 1；
C, the adjustment length of expansion link 2, make camera 7 be located at mouth of pipe center；
D, by control panel 9 control stepper motor 7, adjust the angle of camera 6, make camera lens align with tube axis direction；
E, the change shooting focal length of camera 7, imaging of taking pictures is carried out to pipeline inside, and each zoom distance is no more than 10mm；
F, the corresponding relation as picture and inner-walls of duct can be created as according to geometrical relationship, you can survey according to imaging picture
The position of defect of pipeline is measured, geometrical relationship is shown in accompanying drawing 4, specific correspondence formula is：
R is detection pipe radius (reality is known), and y is distances of certain imaging point p away from axis on imaging picture, and f is shooting
When focal length, z be the imaging point correspondence pipeline defective locations and camera axial distance.
The present invention obtains the clear pictures in different depth pipeline by way of being taken pictures in mouth of pipe zoom, is believed by photo
Breath and correspondence camera internal reference, the positional distance and size of defect of pipeline are measured according to geometrical relationship.With the latent prestige of conventional pipeline
Mirror detection is compared, and while efficient work is ensured, realizes the accurate measurement to defect of pipeline position and size；With conventional pipe
Pipeline robot measurement is compared, and on the premise of defect of pipeline position accurate positioning is ensured, realizes the standard to defect of pipeline size
Really measurement, and substantially increase operating efficiency.
Above case study on implementation is merely to illustrate the preferred embodiment of the present invention, but the present invention is not limited to above-mentioned embodiment party
Formula, in the knowledge that the field those of ordinary skill possesses, that is made within the spirit and principles in the present invention is any
Modification, equivalent substitute and improvement etc., are regarded as the protection domain of the application.
Claims (10)
1. a kind of defect inspection device, it is characterised in that：Including fixed support（1）, it is arranged on fixed support（1）Middle
Expansion link（2）, expansion link lower end is connected with the test platform of detection device（3）, described test platform（3）Pass through wire
Connect computer.
2. a kind of defect inspection device according to claim 1, it is characterised in that：Described fixed support（1）For
In triangle solid space set telescope support, constitute telescope support expansion bracket support bar upper end by with support terminal pad
It is hinged, middle part is by locating rod and is enclosed on expansion link（2）On expansion link positioning disk be hinged, lower end is contacted with ground.
3. a kind of defect inspection device according to claim 1, it is characterised in that：Described expansion link（2）It is upper
End is cased with the expansion link positioning disk being flexibly connected with being fixed in the middle of support terminal pad on the body of rod of middle part, lower end is located at pipe under test
Directly over inspection shaft well head, and and test platform（3）Connection.
4. a kind of defect inspection device according to claim 1, it is characterised in that：Described expansion link（2）Bar
It is provided with body and is accurate to millimetre-sized scale marker.
5. a kind of defect inspection device according to claim 1, it is characterised in that：Described test platform（3）Bag
Include suspension（12,）With suspension（12）The deck that top is fixed（11）, deck（11）It is connected simultaneously with expansion link lower end；Suspension
（12,）Bottom and detection device housing（5）Connection, detection device housing（5）Inside it is provided with detection device；Described detection device
Including being arranged on detection device housing（5）Control panel that is interior and being controlled by computer（9）, control panel（9）Connect and control respectively
Zoom camera（6）, stepper motor（7）And illuminating lamp（13）.
6. a kind of defect inspection device according to claim 5, it is characterised in that：The stepper motor（7）Set
In detection device housing（5）It is interior, and pass through driving wheel（10）Act on and suspension（12）, adjust the camera anglec of rotation.
7. a kind of defect inspection device according to claim 5, it is characterised in that：Described detection device housing
（5）It is provided with protecgulum（4）And bonnet（8）.
8. a kind of defect inspection device according to claim 1, it is characterised in that：The zoom camera（6）It is located at
Detection device housing（5）It is interior, for zoom function camera, focal length is by accurate measure.
9. a kind of defect inspection device according to claim 1, it is characterised in that：Pass through expansion link（2）, stepping electricity
Machine（7）Camera position is adjusted, makes camera lens align with tube axis direction.
10. defect inspection device detection pipeline defective locations as claimed in claim 1, the accurate measurement method of size,
Its
It is characterised by, concretely comprises the following steps：
A, by fixed support（1）It is fixed on pipe under test inspection shaft well head；
B, by test platform（3）Pass through deck（11）With expansion link（2）Lower end is fixed, expansion link（2）Middle part and upper end distinguish
With support（1）It is connected；
C, adjustment expansion link（2）Length, makes zoom camera（6）Positioned at pipe under test center；
D, control panel passed through by computer（9）Control stepper motor（7）, adjust camera（6）Angle, makes camera lens alignment pipe
Road axis direction；
E, change camera（6）Shooting focal length, imaging of taking pictures is carried out to pipeline inside, and image data and corresponding focal length parameter are passed
It is defeated by computer；
F, with reference to focus information, camera internal reference and caliber information, pair as picture and inner-walls of duct is created as using geometrical relationship
It should be related to, according to the positional distance and size of imaging measuring pictures defect of pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710430748.9A CN107153068A (en) | 2017-06-09 | 2017-06-09 | A kind of defect inspection device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710430748.9A CN107153068A (en) | 2017-06-09 | 2017-06-09 | A kind of defect inspection device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107153068A true CN107153068A (en) | 2017-09-12 |
Family
ID=59796299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710430748.9A Pending CN107153068A (en) | 2017-06-09 | 2017-06-09 | A kind of defect inspection device and measuring method |
Country Status (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331147A (en) * | 2018-01-10 | 2018-07-27 | 曹先锋 | The heavy mud groove of inspection shaft clears up auxiliary device |
| CN108360660A (en) * | 2017-12-29 | 2018-08-03 | 曹先锋 | The heavy mud groove method for cleaning of the inspection shaft of inspection shaft and system |
| CN108426889A (en) * | 2018-03-13 | 2018-08-21 | 山东省特种设备检验研究院有限公司 | Non-destructive testing imaging device and its working method inside a kind of bearing device |
| CN109623879A (en) * | 2019-01-28 | 2019-04-16 | 浙江省特种设备检验研究院 | A kind of gas storage well detection robot test platform |
| CN112666079A (en) * | 2020-12-14 | 2021-04-16 | 道雨耐节能科技宿迁有限公司 | Pipeline detection device |
| CN114673938A (en) * | 2021-04-21 | 2022-06-28 | 天圜工程有限公司 | Pipeline internal information detection device for pipeline maintenance |
| CN115343750A (en) * | 2022-07-22 | 2022-11-15 | 西北核技术研究所 | Telescopic multi-directional rotating mobile detection platform and use method thereof |
| CN116203045A (en) * | 2023-05-06 | 2023-06-02 | 成都维迦科技有限公司 | Artificial intelligence detection device of pipeline inner wall |
| CN116577337A (en) * | 2023-05-10 | 2023-08-11 | 广东银浩智能技术有限公司 | Pipeline disease detection method and system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360660A (en) * | 2017-12-29 | 2018-08-03 | 曹先锋 | The heavy mud groove method for cleaning of the inspection shaft of inspection shaft and system |
| CN108360660B (en) * | 2017-12-29 | 2020-09-29 | 徐州腾盛新型建材有限公司 | Method and system for cleaning inspection well mud settling tank of inspection well |
| CN108331147A (en) * | 2018-01-10 | 2018-07-27 | 曹先锋 | The heavy mud groove of inspection shaft clears up auxiliary device |
| CN108426889A (en) * | 2018-03-13 | 2018-08-21 | 山东省特种设备检验研究院有限公司 | Non-destructive testing imaging device and its working method inside a kind of bearing device |
| CN109623879A (en) * | 2019-01-28 | 2019-04-16 | 浙江省特种设备检验研究院 | A kind of gas storage well detection robot test platform |
| CN112666079A (en) * | 2020-12-14 | 2021-04-16 | 道雨耐节能科技宿迁有限公司 | Pipeline detection device |
| CN114673938A (en) * | 2021-04-21 | 2022-06-28 | 天圜工程有限公司 | Pipeline internal information detection device for pipeline maintenance |
| CN115343750A (en) * | 2022-07-22 | 2022-11-15 | 西北核技术研究所 | Telescopic multi-directional rotating mobile detection platform and use method thereof |
| CN116203045A (en) * | 2023-05-06 | 2023-06-02 | 成都维迦科技有限公司 | Artificial intelligence detection device of pipeline inner wall |
| CN116203045B (en) * | 2023-05-06 | 2024-02-06 | 中设（深圳）设备检验检测技术有限公司 | Artificial intelligence detection device of pipeline inner wall |
| CN116577337A (en) * | 2023-05-10 | 2023-08-11 | 广东银浩智能技术有限公司 | Pipeline disease detection method and system |
| CN116577337B (en) * | 2023-05-10 | 2024-04-19 | 广东银浩智能技术有限公司 | Pipeline disease detection method and system |
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