CN108320284A - To the detection method and device of concrete filled steel tube interface state - Google Patents
To the detection method and device of concrete filled steel tube interface state Download PDFInfo
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- CN108320284A CN108320284A CN201810118803.5A CN201810118803A CN108320284A CN 108320284 A CN108320284 A CN 108320284A CN 201810118803 A CN201810118803 A CN 201810118803A CN 108320284 A CN108320284 A CN 108320284A
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- steel tube
- concrete filled
- concrete
- filled steel
- steel pipe
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30132—Masonry; Concrete
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30168—Image quality inspection
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention relates to technical field of buildings, and in particular to a kind of detection method and device to concrete filled steel tube interface state, the detection method and device to concrete filled steel tube interface state are applied to terminal device, which connect with high-definition camera instrument.First, speckle field is arranged on the concrete filled steel tube in user, and sample areas is set on the speckle field, the image of the sample areas of the speckle field is acquired by high-definition camera instrument in turn as standard picture, after applying different size power to the concrete filled steel tube by other equipment, the image for acquiring the sample areas by high-definition camera instrument again is used as target image, and then determines whether the steel pipe of the concrete filled steel tube and concrete disengage after being compared and analyzed to the standard picture and target image.
Description
Technical field
The present invention relates to technical field of buildings, in particular to a kind of inspection to concrete filled steel tube interface state
Survey method and device.
Background technology
Concrete filled steel tube have high capacity, plasticity and good toughness, anti-seismic performance is superior, fire resistance is good, construction
The advantages such as convenient have been widely applied at present among the structures such as bridge both domestic and external, building, port and pier.Concrete filled steel tube
The pattern of composite structure, mechanical property will necessarily be by concrete material, the shadows of reinforcing bar and steel pile casting mechanics of materials feature
It rings.Meanwhile the bond stress between steel pile casting and core concrete can influence the load transfer mechanism at steel-concrete interface and interior
Power distribution characteristics is the guarantee of steel tube-concrete composite structure cooperative bearing and deformation, therefore equally can be to the power of composite structure
Performance is learned to have an impact.
Traditional concrete filled steel tube exposes some defects in the upper also report of application.When core concrete area of section is excessive
When, since steel pipe sidewise restraint is limited, structure causes integrally-built security risk it is possible that brittle failure by shear.
Steel tube-concrete composite structure under the action of constant load, core concrete can by steel pile casting and steel bar stress it is dual about
Shu Zuoyong, due to the difference of concrete and steel material characteristics, the difference of the TERM DEFORMATION of core concrete and steel pile casting can be led
The sliding at steel-concrete interface is caused, and then it is surplus after the effect of a period of time constant load to influence steel tube-concrete composite structure
Remaining bearing capacity.This phenomenon will serious steel tube concrete pile performance, seriously endanger safety and the durability of building,
Make building that original reliability be not achieved.Whether research steel pipe disengages with concrete, and studies steel pipe and distinguish with concrete
Stressing conditions, the error being affected is controlled, to reduce Engineering Error, this to improve quality control on construction master
Dynamic property, ensures that the reliability of building has important meaning.
The method that traditional detection steel pipe is disengaged with concrete has ultrasonic detection method.Basic principle is in outer diameter of steel pipes
One end using transmitting transducer radiate high-frequency vibration, the reception energy converter of the outer diameter of steel pipes other end is transmitted to through the steel pipe center of circle.It is super
Sound wave will change the direction of propagation and path when encountering the interface formed by various defects in communication process, energy will be
Fault location is attenuated, and is caused when sound when ultrasonic wave arrival reception energy converter, the opposite of sound width, frequency changes.Ultrasound examination
Concrete filled steel tube is exactly according to ultrasonic wave in communication process when sound, the opposite variation of sound width, frequency, to the matter of concrete filled steel tube
Amount is analyzed and determined.
But type ultrasonic testing tube inner concrete defect will according to parameters,acoustic sound when, the parameters phase such as wave amplitude, phase, frequency
The variation answered, to judge position and the size of its internal clearance.And the precondition differentiated is：Ultrasonic wave is passed by concrete
The sound duration broadcast is necessarily less than the sound duration directly by steel pipe walls diffraction, otherwise, head wave of ultrasonic wave will not pass through concrete and
Receiving transducer directly is reached along steel pipe walls, can not just judge internal defects.
Invention content
The purpose of the present invention is to provide a kind of detection methods to concrete filled steel tube interface state, with by more
Simple accurate, contactless means carry out defects detection to concrete filled steel tube.
Another object of the present invention is to provide a kind of detection devices to concrete filled steel tube interface state, to pass through
More simple accurate, contactless means carry out defects detection to concrete filled steel tube.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows：
In a first aspect, an embodiment of the present invention provides a kind of detection method to concrete filled steel tube interface state, answer
For terminal device, the terminal device is connect with high-definition camera instrument, the method includes：The operation of user is responded in the steel
Speckle field is set in pipe concrete structure；Receive the sample of the high-definition camera instrument acquisition determined in the speckle field by user
The standard picture of one's respective area；Receive high-definition camera instrument acquisition different size power is applied to the concrete filled steel tube after
The target image of sample areas；The steel pipe of the concrete filled steel tube is analyzed according to the standard picture and target image and is mixed
Whether solidifying soil disengages.
Second aspect, the embodiment of the present invention additionally provide a kind of detection device to concrete filled steel tube interface state,
Applied to terminal device, the terminal device is connect with high-definition camera instrument, and described device includes：Setup module is used for responding
Speckle field is arranged on the concrete filled steel tube in the operation at family；First receiving module, for receiving the high-definition camera instrument
The standard picture for the sample areas of acquisition determined in the speckle field by user；Second receiving module, it is described for receiving
The target image for applying sample areas after different size power to the concrete filled steel tube of high-definition camera instrument acquisition；Analyze mould
Whether block, steel pipe and concrete for analyzing the concrete filled steel tube according to the standard picture and target image take off
It opens.
A kind of detection method and device to concrete filled steel tube interface state provided in an embodiment of the present invention, this is to steel
The detection method and device of pipe concrete structural interface state are applied to terminal device, which connects with high-definition camera instrument
It connects.First, speckle field is arranged in user on the concrete filled steel tube, and sample areas, Jin Eryou are arranged on the speckle field
High-definition camera instrument acquires the image of the sample areas of the speckle field as standard picture, by other equipment to the steel tube concrete
It after soil structure applies different size power, then acquires by high-definition camera instrument the image of the sample areas and is used as target image, in turn
Determine whether the steel pipe of the concrete filled steel tube and concrete take off after being compared and analyzed to the standard picture and target image
It opens.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of stream of detection method to concrete filled steel tube interface state provided in an embodiment of the present invention
Journey schematic diagram.
Fig. 2 shows the schematic diagrames of speckle field on concrete filled steel tube provided in an embodiment of the present invention.
Fig. 3 shows a kind of son of detection method to concrete filled steel tube interface state provided in an embodiment of the present invention
The flow diagram of step.
Fig. 4 shows a kind of work(of detection device to concrete filled steel tube interface state provided in an embodiment of the present invention
It can module diagram.
Diagram：Detection devices of the 100- to concrete filled steel tube interface state；110- setup modules；120- first is received
Module；The second receiving modules of 130-；140- analysis modules；150- position determination modules.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.Meanwhile the present invention's
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
A kind of detection method to concrete filled steel tube interface state provided in an embodiment of the present invention is set applied to terminal
Standby, which may be, but not limited to, the intelligent electronic devices such as tablet computer, laptop, the terminal device and height
Clear video camera connection, the high-definition camera instrument are used to acquire the figure in each orientation for the concrete filled steel tube for being installed on construction site
Picture, and the image of acquisition is sent to terminal device and is handled.The high-definition camera instrument can be, but be not limited to, CCD camera
Or site operation monitors high-definition camera instrument.
Fig. 1 is please referred to, is a kind of detection method to concrete filled steel tube interface state provided in an embodiment of the present invention
Flow diagram, this method includes：
Speckle field is arranged on the concrete filled steel tube in step S110, the operation for responding user.
Specifically, to concrete filled steel tube carry out body structure surface grinding process, by manually spray or unmanned plane spray
Mode select the paint spray of dumb light white to spray concrete filled steel tube, ensure concrete filled steel tube it is mute
Light white paint covers, and then, is sprayed to the paint of concrete filled steel tube coated matte black by the spraying method of spot style
Mist, to leave the spot of multiple dumb light black on the concrete filled steel tube of even application dumb light white, with completion pair
The setting of concrete filled steel tube speckle field, as shown in Fig. 2, being speckle on concrete filled steel tube provided in an embodiment of the present invention
The schematic diagram of field.
It should be noted why selecting dumb light white as the background color sprayed to concrete filled steel tube, choosing here
Select dumb light black as to concrete filled steel tube spray spot color, be because dumb light white and dumb light black difference compared with
Greatly, be easy distinguish, convenient for subsequently handling image, this two kinds spraying color can as needed optional two kinds of aberration compared with
Big color, such as green and red.In addition, when spraying, size and dense degree to spot made of spraying do not require, but
It is that cannot form color lump.
Step S120 receives the sample areas of the high-definition camera instrument acquisition determined in the speckle field by user
Standard picture.
User can be directed to the steel pipe of the concrete filled steel tube and concrete is easy the location determination sample areas disengaged, should
The speckle field for including in sample areas is standard picture, it is emphasized that, the concrete filled steel tube adds not yet at this time
Add and come into operation, therefore the steel pipe and concrete of concrete filled steel tube at this time, acquire at this time there is no disengaging
Standard picture can be used as concrete filled steel tube normal condition (i.e. the steel pipe of concrete filled steel tube and concrete do not disengage)
Under reference.Since concrete filled steel tube is more, it is preferred to use two or more high-definition camera instruments are respectively from different
UAV flight's high-definition camera instrument also can be used to the higher situation in concrete filled steel tube present position in angle acquisition image
Image Acquisition is carried out, chooses the corresponding image of the sample areas of high-definition camera instrument acquisition as standard picture, using as rear
The reference picture of continuous image.It should be noted that when acquiring image using high-definition camera instrument, by the mark of the high-definition camera instrument
Definite value is set as minimum, to reduce error, improves stability.
Step S130, receive high-definition camera instrument acquisition different size power is applied to the concrete filled steel tube after
The target image of sample areas.
It, need to be specifically, when carrying out experiment to the concrete filled steel tube and detecting its steel pipe and concrete and whether disengage
After the sample areas acquisition standard picture delimited concrete filled steel tube, the concrete filled steel tube is applied using other equipment
Add different size of power, and then is again target image by the corresponding image in high-definition camera instrument collecting sample region.It acquires at this time
Target image and standard picture be inconsistent because the concrete filled steel tube under force may occur shape
Become, so that the spot in sample areas is deviated.It is installed in actual construction environment in concrete filled steel tube, is then
The corresponding image of sample areas set before using high-definition camera instrument acquisition after certain interval of time is target image, due to this
Concrete filled steel tube receives integrally-built force effect, and therefore, the target image and standard picture acquired at this time is also not
Consistent, the situation of change of the concrete filled steel tube can be obtained by the comparative analysis standard picture and target image.
Step S140 analyzes the steel pipe and coagulation of the concrete filled steel tube according to the standard picture and target image
Whether soil disengages.
Specifically, according to the change in displacement situation of spot on the comparative analysis standard picture and target image, it should with analysis
Concrete filled steel tube whether there is defect, that is, judge whether the steel pipe of the concrete filled steel tube and concrete disengage, if should
The steel pipe of concrete filled steel tube has been disengaged with concrete, then other measures can be taken to remedy in time, and then reduces engineering
Error.Fig. 3 is please referred to, is the son of the step S140 of the detection method of concrete filled steel tube provided in an embodiment of the present invention a kind of
The flow diagram of step, step S140 include：
Step S141 determines that the distribution trajectory of spot on the standard picture is standard profile track.
Since the standard picture acquires before applying active force to concrete filled steel tube, by the standard
The distribution trajectory of spot is as standard profile track in image, and the target image of subsequent acquisition is ginseng with the standard profile track
It examines.
Step S142 determines that the distribution trajectory of spot on the target image is target distribution track.
Step S143 calculates multiple offsets that the target distribution track corresponds to spot with the standard profile track
Amount.
Since standard picture and target image are the images that high-definition camera instrument acquires same sample areas, then the standard
There is identical spot in image and target image, then its offset is calculated one by one to corresponding spot in two images.
Step S144 analyzes the steel pipe of the concrete filled steel tube according to the multiple offset and whether concrete takes off
It opens.
Since spot distribution is distributed according to standard profile track on the concrete filled steel tube, if subsequent acquisition
Image display dot offset in exist more than predetermined threshold value, then it is larger to show that the concrete filled steel tube is subject to
It destroys, steel pipe and concrete have disengaged.Further, it is also possible to according to the offset pair for being more than predetermined threshold value in multiple offsets
The position that the steel pipe and concrete of the location determination concrete filled steel tube where the spot answered disengage, in order to construction personnel
It takes timely measure and is remedied.
It can be seen that a kind of detection method to concrete filled steel tube interface state provided in an embodiment of the present invention passes through
Comparative analysis standard picture and target image whether there is defect to detect the concrete filled steel tube, be a kind of non-destructive testing sides
Method, there is no the risks for destroying concrete structure globality, and this method realization rate is simply accurate, it is only necessary to fix height
Clear video camera carries out the acquisition of image, and image analysis carried out i.e. by terminal device it could be assumed that.In addition, this programme is to environment
And the requirement of light path condition is not stringent, measurement can easily be unfolded, and be suitable for a variety of construction environments.
Fig. 4 is please referred to, is a kind of detection device to concrete filled steel tube interface state provided in an embodiment of the present invention
100 high-level schematic functional block diagram, the device include setup module 110, the first receiving module 120, the second receiving module 130, divide
Analyse module 140 and position determination module 150.
Speckle field is arranged on the concrete filled steel tube in setup module 110, the operation for responding user.
In embodiments of the present invention, step S110 can be executed by setup module 110.
First receiving module 120, for receiving the determining in the speckle field by user of the high-definition camera instrument acquisition
Sample areas standard picture.
In embodiments of the present invention, step S120 can be executed by the first receiving module 120.
Second receiving module 130, for receiving applying to the concrete filled steel tube for the high-definition camera instrument acquisition
The target image of sample areas after different size power.
In embodiments of the present invention, step S130 can be executed by the second receiving module 130.
Analysis module 140, the steel for analyzing the concrete filled steel tube according to the standard picture and target image
Whether pipe and concrete disengage.
In embodiments of the present invention, step S140 can be executed by analysis module 140.
Position determination module 150, for determined according to the multiple offset the concrete filled steel tube steel pipe and
The position that concrete disengages.
In embodiments of the present invention, step S140 can be executed by being also required to position determination module 150.
It is no longer superfluous herein due to being had been described in the detection method part to concrete filled steel tube interface state
It states.
In conclusion a kind of detection method and dress to concrete filled steel tube interface state provided in an embodiment of the present invention
It sets, which is applied to terminal device, the terminal device and high definition
Video camera connects.First, speckle field is arranged in user on the concrete filled steel tube, and sample area is arranged on the speckle field
Domain, so acquired by high-definition camera instrument the speckle field sample areas image as standard picture, passing through other equipment pair
After the concrete filled steel tube applies different size power, then acquires by high-definition camera instrument the image of the sample areas and be used as target
Image, and then the steel pipe and coagulation of the concrete filled steel tube are determined after being compared and analyzed to the standard picture and target image
Whether soil disengages.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, the flow chart in attached drawing and block diagram
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part for the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that at some as in the realization method replaced, the function of being marked in box can also be to be different from
The sequence marked in attached drawing occurs.For example, two continuous boxes can essentially be basically executed in parallel, they are sometimes
It can execute in the opposite order, this is depended on the functions involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use function or the dedicated base of action as defined in executing
It realizes, or can be realized using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each function module in each embodiment of the present invention can integrate to form an independent portion
Point, can also be modules individualism, can also two or more modules be integrated to form an independent part.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
It should be noted that herein, relational terms such as first and second and the like are used merely to an entity or behaviour
Make with another entity or operate distinguish, without necessarily requiring or implying between these entities or operation there are it is any this
The actual relationship of kind or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include so that including a series of elements process, method, article or equipment not only include those elements, but also
Including other elements that are not explicitly listed, or further include for this process, method, article or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that wanted including described
There is also other identical elements in the process, method, article or equipment of element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and is explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of detection method to concrete filled steel tube interface state is applied to terminal device, the terminal device and height
Clear video camera connection, which is characterized in that the method includes：
Speckle field is arranged on the concrete filled steel tube in the operation of response user；
Receive the standard picture for the sample areas of the high-definition camera instrument acquisition determined in the speckle field by user；
Receive the mesh for applying sample areas after different size power to the concrete filled steel tube of the high-definition camera instrument acquisition
Logo image；
The steel pipe of the concrete filled steel tube is analyzed according to the standard picture and target image and whether concrete disengages.
2. the method as described in claim 1, which is characterized in that described according to described in the standard picture and target image analysis
The step of whether steel pipe and concrete of concrete filled steel tube disengage include：
Determine that the distribution trajectory of spot on the standard picture is standard profile track；
Determine that the distribution trajectory of spot on the target image is target distribution track；
Calculate multiple offsets that the target distribution track corresponds to spot with the standard profile track；
The steel pipe of the concrete filled steel tube is analyzed according to the multiple offset and whether concrete disengages.
3. method as claimed in claim 2, which is characterized in that described to analyze the concrete filled steel tube knot according to the offset
The step of whether steel pipe and concrete of structure disengage include：
If there is the offset more than predetermined threshold value in the multiple offset, the steel pipe of the concrete filled steel tube and mixed
Solidifying soil has disengaged.
4. method as claimed in claim 2, which is characterized in that the method further includes：
The position that the steel pipe of the concrete filled steel tube and concrete disengage is determined according to the multiple offset.
5. method as claimed in claim 4, which is characterized in that the method includes：
It chooses mixed for the steel pipe more than the position where the corresponding spot of offset of predetermined threshold value in the multiple offset
The position that the steel pipe and concrete of Xtah Crude Clay structure disengage.
6. a kind of detection device to concrete filled steel tube interface state is applied to terminal device, the terminal device and height
Clear video camera connection, which is characterized in that described device includes：
Speckle field is arranged on the concrete filled steel tube in setup module, the operation for responding user；
First receiving module, the sample area determined in the speckle field by user for receiving the high-definition camera instrument acquisition
The standard picture in domain；
Second receiving module applies different size for receive high-definition camera instrument acquisition to the concrete filled steel tube
The target image of sample areas after power；
Analysis module, steel pipe and coagulation for analyzing the concrete filled steel tube according to the standard picture and target image
Whether soil disengages.
7. device as claimed in claim 6, which is characterized in that the analysis module is additionally operable to：It determines on the standard picture
The distribution trajectory of spot is standard profile track；
Determine that the distribution trajectory of spot on the target image is target distribution track；
Calculate multiple offsets that the target distribution track corresponds to spot with the standard profile track；
The steel pipe of the concrete filled steel tube is analyzed according to the multiple offset and whether concrete disengages.
8. device as claimed in claim 7, which is characterized in that the analysis module is additionally operable to：
If there is the offset more than predetermined threshold value in the multiple offset, the steel pipe of the concrete filled steel tube and mixed
Solidifying soil has disengaged.
9. device as claimed in claim 7, which is characterized in that described device further includes：
Position determination module, the steel pipe and concrete for determining the concrete filled steel tube according to the multiple offset are de-
The position opened.
10. device as claimed in claim 9, which is characterized in that the position determination module is additionally operable to：
It chooses mixed for the steel pipe more than the position where the corresponding spot of offset of predetermined threshold value in the multiple offset
The position that the steel pipe and concrete of Xtah Crude Clay structure disengage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810118803.5A CN108320284A (en) | 2018-02-06 | 2018-02-06 | To the detection method and device of concrete filled steel tube interface state |
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| CN201810118803.5A CN108320284A (en) | 2018-02-06 | 2018-02-06 | To the detection method and device of concrete filled steel tube interface state |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021806A1 (en) * | 2020-07-30 | 2022-02-03 | 冉浩 | Packaging bag unequal edge defect automatic detection system and method |
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