CN107607397A - Defect inspection method and device - Google Patents
Defect inspection method and device Download PDFInfo
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- CN107607397A CN107607397A CN201710839395.8A CN201710839395A CN107607397A CN 107607397 A CN107607397 A CN 107607397A CN 201710839395 A CN201710839395 A CN 201710839395A CN 107607397 A CN107607397 A CN 107607397A
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Abstract
The invention provides a kind of defect inspection method and device, it is related to building structure field.The defect inspection method includes：When concrete-pile is in loading status, obtains and be used to detect image of the concrete-pile with the presence or absence of the pattern of defect on the concrete-pile；Based on described image, judge whether the concrete-pile is Defect Piles.Defect inspection method and device provided by the invention provide a kind of simpler, more accurate, lossless non-contacting scheme for the detection of defect steel tube concrete pile, based on numerical value Speckles Technique, the deformation data of body surface can be quickly drawn only in accordance with strain image position of the body surface key point before and after load, and judgment object whether there is defect, its is economical and practical, simple to operate.
Description
Technical field
The present invention relates to building structure field, in particular to a kind of defect inspection method and device.
Background technology
Steel tube concrete pile has high capacity, shock resistance high, plasticity and good toughness, making and easy for construction etc. excellent
Point, it is widely used in the building stress system of high level, bridge, harbour and large span space.In work progress, due to work
Sequence controls not tight, and the uncompacted quality problems of concrete in steel pipe occur unavoidably.This defect steel tube concrete pile is tight
The security and durability of building are endangered again, and therefore, the inspection strengthened to inner concrete quality is particularly significant.
According to the standard of present, the regulation of specification, the defects of inner concrete detection have hammering method, core drilling method and super
The methods of sonic method (radially to surveying method and pipe laying supercritical ultrasonics technology).
But the existing inner concrete the defects of in detection method, hammering method relies on the technology of technical staff completely
And experience, it is theoretically unsound, the concrete filled steel tube larger to wall thickness is difficult to accurate judgement.Hammering method can only be used as one kind
Aid in detection means.
Core drilling method judges the overall condition of stake with local circumstance, and limitation is larger, and drills to exist and destroy concrete
The risk of stake globality, the stress of concrete can be seriously undermined.
Supercritical ultrasonics technology is included radially to surveying method and pipe laying supercritical ultrasonics technology.Radially to survey method require steel pipe tube wall and concrete it
Between strong bonding, otherwise can cause the mistake for detecting data and defect dipoles；Pipe laying supercritical ultrasonics technology detection range has certain limitations,
The quality of sound detecting pipe inner concrete can only be detected, it is impossible to detect coagulation between pile pipe wall and inner concrete and lateral stiffening plate
The combination situation of soil.Meanwhile the requirement detected to the age of concrete can make a big impact to the duration.
Nowadays, intelligentized needs are transported to comply with increasingly increased freight demand and berth, various new high stakes are upright
Formula structure has become the most durable dock structure type of Upper Yangtze River.Detection for long piled wharf or bridge, is all suffered from
The problem of a high water level difference and high stake, existing detection method is all contact, i.e., detection device is installed in stake,
The detection method of this contact is the even infeasible of inconvenience in the case of some large water-head stakes.
The content of the invention
It is an object of the invention to provide a kind of defect inspection method and device, and it can be effectively improved above mentioned problem.
What embodiments of the invention were realized in：
In a first aspect, the embodiments of the invention provide a kind of defect inspection method, methods described includes：At concrete-pile
When loading status, obtain and be used to detect image of the concrete-pile with the presence or absence of the pattern of defect on the concrete-pile；
Based on described image, judge whether the concrete-pile is Defect Piles.
Second aspect, the embodiment of the present invention additionally provide a kind of defect detecting device, and it includes image collection module, is used for
When concrete-pile is in loading status, obtains and be used to detect the concrete-pile on the concrete-pile with the presence or absence of defect
The image of pattern；Defect dipoles module, for based on described image, judging whether the concrete-pile is Defect Piles.
The third aspect, the embodiment of the present invention additionally provide a kind of defect detecting device, and it is included at picture shooting assembly and image
Unit is managed, the picture shooting assembly connects with described image processing unit, when concrete-pile is in loading status, the shooting group
Part is used to obtain to be used to detect image of the concrete-pile with the presence or absence of the pattern of defect on the concrete-pile；Described image
Processing unit, for based on described image, judging whether the concrete-pile is Defect Piles.
Defect inspection method and device provided in an embodiment of the present invention, by when concrete-pile is in loading status, obtaining
Take and be used to detect image of the concrete-pile with the presence or absence of the pattern of defect on the concrete-pile, according in described image
Pattern form characterize after the concrete-pile load in the structural mechanics state of each position corresponding to the pattern；It is based on again
Described image, judge whether the concrete-pile is Defect Piles, deformation extent that can be by pattern in described image after load
Know Displacement-deformation of the concrete-pile in the pattern correspondence position, finally judged according to the size of Displacement-deformation tested mixed
Coagulate native stake and whether there is defect.Compared to the prior art, defect inspection method and device provided by the invention are that defect steel pipe mixes
The detection for coagulating native stake provides a kind of simpler, more accurate, lossless non-contacting scheme, based on numerical value Speckles Technique, only in accordance with
Strain image position of the body surface key point before and after load can quickly draw the deformation data of body surface, and intuitively
Judgment object whether there is defect, and its is economical and practical, simple to operate, be easy to detect steel tube concrete pile peace that may be present in real time
Full hidden danger, also provided the foundation data for the follow-up position for judging defect.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of structured flowchart for the electronic equipment that can be applied in the embodiment of the present invention；
The FB(flow block) of the defects of Fig. 2 provides for first embodiment of the invention detection method；
Fig. 3 is the sub-step FB(flow block) of step S210 in first embodiment of the invention；
Fig. 4 is the sub-step FB(flow block) of step S310 in first embodiment of the invention；
The FB(flow block) of the first preferred scheme of the defects of Fig. 5 provides for first embodiment of the invention detection method；
The FB(flow block) of second of preferred scheme of the defects of Fig. 6 provides for first embodiment of the invention detection method；
The structured flowchart of the defects of Fig. 7 provides for second embodiment of the invention detection means；
The structured flowchart of the defects of Fig. 8 provides for second embodiment of the invention judge module；
The structured flowchart of the defects of Fig. 9 provides for second embodiment of the invention judging unit；
The structured flowchart of the defects of Figure 10 provides for third embodiment of the invention detection means.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be configured to arrange and design with a variety of herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
Fig. 1 shows a kind of structured flowchart for the electronic equipment 100 that can be applied in the embodiment of the present application.As shown in figure 1,
Electronic equipment 100 can include memory 110, storage control 120, processor 130, display screen 140 and defects detection dress
Put.For example, the electronic equipment 100 can be PC (personal computer, PC), tablet personal computer, smart mobile phone,
Personal digital assistant (personal digital assistant, PDA) etc..
It is directly or indirectly electric between memory 110, storage control 120, processor 130,140 each element of display screen
Connection, to realize the transmission of data or interaction.For example, one or more communication bus or signal can be passed through between these elements
Bus realizes electrical connection.The defect inspection method respectively include it is at least one can be with the shape of software or firmware (firmware)
Formula is stored in the software function module in memory 110, such as the software function module or meter that the defect detecting device includes
Calculation machine program.
Memory 110 can store various software programs and module, the defects of being provided such as the embodiment of the present application detection side
Programmed instruction/module corresponding to method and device.Processor 130 by run storage software program in the memory 110 and
Module, so as to perform various function application and data processing, that is, realize the defects of the embodiment of the present application detection method.Storage
Device 110 can include but is not limited to random access memory (Random Access Memory, RAM), read-only storage (Read
Only Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM) is erasable
Read-only storage (Erasable Programmable Read-Only Memory, EPROM), electricallyerasable ROM (EEROM)
(Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Processor 130 can be a kind of IC chip, have signal handling capacity.Above-mentioned processor can be general
Processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit (Network
Processor, abbreviation NP) etc.；It can also be digital signal processor (DSP), application specific integrated circuit (ASIC), ready-made programmable
Gate array (FPGA) either other PLDs, discrete gate or transistor logic, discrete hardware components.It can
To realize or perform disclosed each method, step and the logic diagram in the embodiment of the present application.General processor can be micro-
Processor or the processor can also be any conventional processors etc..
Electronic equipment 100 applied in the embodiment of the present invention is to realize defects detection, should also be possessed from display function, its
In display screen 140 can be provided between the electronic equipment 100 and user an interactive interface (such as user operate boundary
Face) or for display image data give user reference.For example, the image and concrete that can be obtained with display defect detection means
The related data of stake deformation state.
First embodiment
Fig. 2 is refer to, present embodiments provides a kind of defect inspection method, applied to defect detecting device, methods described
Including：
Step S200：When concrete-pile is in loading status, obtains and be used to detect the coagulation on the concrete-pile
Image of the native stake with the presence or absence of the pattern of defect；
It is described to be used for that to detect the pattern whether concrete-pile deforms to be detected concrete stake knot in the present embodiment
The existing natural texture in structure top layer or artificial manufactured speckle pattern, wherein, each point on pattern can be worked as
Work is a displaced trace mark.In the present embodiment, it can be acquired by the CCD camera image current to concrete-pile,
And image transmitting is subjected to the analysis of follow-up concrete-pile image to the graphics processing unit for image procossing.
In the present embodiment, the loading status refers to carrying weight on concrete-pile, the weight can be it is movable,
Such as the vehicle that bridge top passes through；Can also be it is fixed existing for, such as the building that concrete-pile top adds.
Step S210：Based on described image, judge whether the concrete-pile is Defect Piles.
For the different two images of the pattern form of same position on image, pattern position corresponding to this two images
The deformation and displacement of the concrete pile structure at place are different, by when concrete-pile is in loading status, obtaining described mix
Coagulate and be used to detect image of the concrete-pile with the presence or absence of the pattern of defect in native stake, you can pass through the shape of pattern on the image
Shape reflects deformation and displacement of the concrete-pile current time in pattern corresponding position.
, can be by being carried out respectively to two images corresponding to pattern of the detected concrete stake before and after the load in the present embodiment
Gathering, the shape of pattern is contrasted on the image obtained on the image that will be obtained after load when the shape and no-load of pattern,
The relevant criterion of pattern form change and concrete pile structure deformation is resettled, each pixel on image may finally be passed through
Transposed matrix extracts top layer whole audience shift value and strain value of the detected concrete stake within the period, that is, obtains the concrete
Stake is after load relative to the deformation extent of no-load.It is understood that the image obtained during no-load is used as in rear acquisition
Anamorphose criterion, the transposed matrix finally obtained is characteristic point on the pattern by image in subrange not
Relative displacement with the time is formed, it is thereby possible to select structure not damaged, security performance height are concrete-pile of the pattern without deformation
Image compares as standard picture, and by the image shot after load with standard picture, you can more intuitively analyzes
The deformation extent of concrete-pile after load, finally judge whether the concrete-pile is scarce according to the size of the deformation extent
Fall into stake.It is understood that when deformation extent of the concrete-pile after load is more than certain threshold value, it is believed that the concrete-pile
Existing defects, the i.e. concrete-pile are Defect Piles.
Fig. 3 is refer to, in the present embodiment, specifically, the step S210 can include following sub-step：
Step S300：Based on described image, the deformation vector figure of the concrete-pile is obtained；
The image of acquisition can be converted in corresponding deformation vector figure by carrying out image procossing by computer.
Step S310：According to the deformation vector figure, judge whether the concrete-pile is Defect Piles.
The deformation vector figure more can intuitively show pattern on the concrete-pile relative to common shooting image
Geometrical properties in each position.
Fig. 4 is refer to, in the present embodiment, specifically, the step S310 can include following sub-step：
Step S400：Based on the deformation vector figure, the deformation cloud charts of the concrete-pile are obtained；
By handling the deformation vector figure obtained in real time, you can be translated into mathematical modeling, obtain deformation point
Cloth cloud atlas.The deformation cloud charts can intuitively reflect the malformation of the opening position.
Step S410：According to the deformation cloud charts and standard cloud atlas, judge whether the concrete-pile is Defect Piles.
In the present embodiment, deformation corresponding to lossless concrete-pile that lot of experimental data in calling device is drawn can be passed through
Cloud charts are opposed as standard cloud atlas by cloud charts are deformed corresponding to the detected concrete stake of acquisition with the standard cloud atlas
Than, you can analyzing detected concrete stake, this is engraved in misalignment in image each position, can when displacement exceeds normal range (NR)
To think current concrete-pile existing defects, as Defect Piles.
Refer to Fig. 5, in the present embodiment, when step S410 judge the concrete-pile for Defect Piles when, in the step
Following steps can also be carried out after S410：
Step S500：According to the deformation cloud charts and standard cloud atlas, the defects of obtaining the concrete-pile position.
Compared cloud charts are deformed corresponding to the detected concrete stake of acquisition with the standard cloud atlas, you can pass through office
The Cloud-Picture Characteristics of portion's deformation judge the position of defect.When the displacement of a certain position on cloud atlas exceeds normal range (NR), the position
The corresponding position the position on actual concrete-pile is the concrete-pile the defects of.
It refer to Fig. 6, in the present embodiment, following steps can also be carried out before the step S200：
Step S600：Key position based on the concrete-pile chooses detection faces；
Step S610：Sprayed in the body structure surface of the detection faces for detecting the concrete-pile with the presence or absence of defect
Pattern.
In the present embodiment, the key position of the concrete-pile can be the concrete summed up in previous experimental data
The position of the easy existing defects of stake, or have the position of considerable influence to the security performance of concrete-pile.
Specifically, in the present embodiment, speckle pattern is made in the detection faces of concrete-pile, can be used color white with dumb light
Color is bottom, and dumb light black carries out the spraying of concrete pile structure for the spraying method of speckle point, and specific spraying process is as follows：First
Body structure surface is polished；Then the region for carrying out needing to be detected is sprayed with white paint；Finally using it is pitch-dark with
Vaporific even application is on white paint bottom.Preferably, tiny and densely distributed scattered spot effect is preferable.For large area concrete
Stake, the spraying of structure can be carried out using modes such as unmanned plane sprinklings.
The defects of traditional metering system, the deformation or strain of a point can only be measured, and have that to destroy concrete-pile overall
Property and weaken concrete stress risk, and detection method the defects of provided by the present embodiment can obtain a certain region
Overall deformation or deformation cloud charts, are more conducive in the detection faces of large area directly judge that concrete-pile whether there is
Defect, and the position of quick obtaining defect.
Second embodiment
Fig. 7 is refer to, present embodiments provides a kind of defect detecting device 700, it includes：
Image collection module 710, it is used to examine on the concrete-pile for when concrete-pile is in loading status, obtaining
Survey image of the concrete-pile with the presence or absence of the pattern of defect；
Defect dipoles module 720, for based on described image, judging whether the concrete-pile is Defect Piles.
Fig. 8 is refer to, in the present embodiment, specifically, defect dipoles module 720 can include such as lower unit：
Polar plot acquiring unit 800, for based on described image, obtaining the deformation vector figure of the concrete-pile；
Defect dipoles unit 810, for according to the deformation vector figure, judging whether the concrete-pile is Defect Piles.
Fig. 9 is refer to, in the present embodiment, specifically, defect dipoles unit 810 can include following subelement：
Cloud atlas obtains subelement 812, for based on the deformation vector figure, obtaining the deformation distribution clouds of the concrete-pile
Figure；
Defect dipoles subelement 814, for according to the deformation cloud charts and standard cloud atlas, judging the concrete-pile
Whether it is Defect Piles.
Defective locations obtain subelement 816, for according to the deformation cloud charts and standard cloud atlas, obtaining the coagulation
The defects of native stake position.
3rd embodiment
Figure 10 is refer to, present embodiments provides a kind of defect detecting device 900, it includes picture shooting assembly 910 and image
Processing unit 920, the shooting unit 910 and described image processing unit 920 connect.When concrete-pile is in loading status
When, the picture shooting assembly 910 is used to obtain to be used to detect the figure that the concrete-pile whether there is defect on the concrete-pile
The image of case；Described image processing unit 920, for based on described image, judging whether the concrete-pile is Defect Piles.
In the present embodiment, the picture shooting assembly 910 can be CCD camera, and the picture shooting assembly 910 can pass through installation
Steel tube concrete pile is shot in the air on unmanned plane.When installing picture shooting assembly 910, it is necessary to by instrument leveling, CCD
Angle between camera should be noted that general 8mm short-focus lens, angle is preferably 25 °~60 °；35mm standard lens, folder
Angle is preferably 20 °~60 °；75mm telephoto lenses, angle are preferably 15 °~60 °.When carrying out camera calibration, image calibration value
Smaller, the projection error of picture is smaller, and numerical stability is higher, and should try one's best during detection reduces calibration value.
In the present embodiment, it can carry out data transmission between the shooting unit 910 and graphics processing unit 920, it is described
Connected mode between shooting unit 910 and graphics processing unit 920 can be that wired connection can also be wireless connection.
The present embodiment detects mainly for the defects of some facial plane, if necessary to measure lacking in three dimensions
Fall into, can be by arranging multiple cameras in tested structure periphery, each camera is set perpendicular to different planes, it is possible to
The defects of detecting to exist in three dimensions.
In summary, defect inspection method and device provided in an embodiment of the present invention, by being in load when concrete-pile
During state, obtain and be used to detect image of the concrete-pile with the presence or absence of the pattern of defect on the concrete-pile, carry out foundation
In the structural mechanics of each position corresponding to the pattern after the pattern form sign concrete-pile load in described image
State；Described image is based on again, judges whether the concrete-pile is Defect Piles, can be by pattern in described image after load
Deformation extent know Displacement-deformation of the concrete-pile in the pattern correspondence position, finally according to the size of Displacement-deformation
Judge that detected concrete stake whether there is defect.Compared to the prior art, defect inspection method and device provided by the invention are
The detection of defect steel tube concrete pile provides a kind of simpler, more accurate, lossless non-contacting scheme, based on numerical value speckle skill
Art, the change figurate number of body surface can be quickly drawn only in accordance with strain image position of the body surface key point before and after load
According to, and intuitively judgment object whether there is defect, its is economical and practical, simple to operate, is easy to detect steel tube concrete pile in real time
Potential safety hazard that may be present, also provided the foundation data for the follow-up position for judging defect.It the foregoing is only the present invention's
Preferred embodiment, be not intended to limit the invention, for those skilled in the art, the present invention can have it is various more
Change and change.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in
Within protection scope of the present invention.
Claims (10)
1. a kind of defect inspection method, it is characterised in that methods described includes：
When concrete-pile is in loading status, obtains and be used to detect the concrete-pile on the concrete-pile with the presence or absence of scarce
The image of sunken pattern；
Based on described image, judge whether the concrete-pile is Defect Piles.
2. according to the method for claim 1, it is characterised in that based on described image, judge the concrete-pile whether be
Defect Piles, including：
Based on described image, the deformation vector figure of the concrete-pile is obtained；
According to the deformation vector figure, judge whether the concrete-pile is Defect Piles.
3. according to the method for claim 2, it is characterised in that according to the deformation vector figure, obtain the concrete-pile
Deformation state, including：
Based on the deformation vector figure, the deformation cloud charts of the concrete-pile are obtained；
According to the deformation cloud charts and standard cloud atlas, judge whether the concrete-pile is Defect Piles.
4. according to the method for claim 3, it is characterised in that when the concrete-pile is Defect Piles, methods described is also
Including：
According to the deformation cloud charts and standard cloud atlas, the defects of obtaining the concrete-pile position.
5. according to the method for claim 1, it is characterised in that methods described also includes：
Key position based on the concrete-pile chooses detection faces；
The pattern that whether there is defect for detecting the concrete-pile is sprayed in the body structure surface of the detection faces.
A kind of 6. defect detecting device, it is characterised in that including：
Image collection module, it is described for detecting on the concrete-pile for when concrete-pile is in loading status, obtaining
Image of the concrete-pile with the presence or absence of the pattern of defect；
Defect dipoles module, for based on described image, judging whether the concrete-pile is Defect Piles.
7. device according to claim 6, it is characterised in that the defect dipoles module includes：
Polar plot acquiring unit, for based on described image, obtaining the deformation vector figure of the concrete-pile；
Defect dipoles unit, for according to the deformation vector figure, judging whether the concrete-pile is Defect Piles.
8. device according to claim 7, it is characterised in that the defect dipoles unit includes：
Cloud atlas obtains subelement, for based on the deformation vector figure, obtaining the deformation cloud charts of the concrete-pile；
Defect dipoles subelement, for according to the deformation cloud charts and standard cloud atlas, judge the concrete-pile whether be
Defect Piles.
9. device according to claim 8, it is characterised in that the defect dipoles unit also includes：
Defective locations obtain subelement, for according to the deformation cloud charts and standard cloud atlas, obtaining the concrete-pile
Defective locations.
A kind of 10. defect detecting device, it is characterised in that including picture shooting assembly and graphics processing unit, the picture shooting assembly and
Described image processing unit connects,
When concrete-pile is in loading status, the picture shooting assembly is used to obtain to be used to detect described mix on the concrete-pile
Coagulate image of the native stake with the presence or absence of the pattern of defect；
Described image processing unit, for based on described image, judging whether the concrete-pile is Defect Piles.
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| CN201710839395.8A CN107607397A (en) | 2017-09-15 | 2017-09-15 | Defect inspection method and device |
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| CN201710839395.8A CN107607397A (en) | 2017-09-15 | 2017-09-15 | Defect inspection method and device |
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| CN108286995A (en) * | 2018-02-06 | 2018-07-17 | 重庆交通大学 | To the detection method and device of temporary steel platform stabilization |
| CN108320284A (en) * | 2018-02-06 | 2018-07-24 | 重庆交通大学 | To the detection method and device of concrete filled steel tube interface state |
| CN110390630A (en) * | 2018-04-17 | 2019-10-29 | 上海碧虎网络科技有限公司 | Image distortion method, device, storage medium, display system and automobile |
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Application publication date: 20180119 |