CN105423923B - A kind of take turns demarcates verification method to shape size detecting system - Google Patents
A kind of take turns demarcates verification method to shape size detecting system Download PDFInfo
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- CN105423923B CN105423923B CN201511033171.5A CN201511033171A CN105423923B CN 105423923 B CN105423923 B CN 105423923B CN 201511033171 A CN201511033171 A CN 201511033171A CN 105423923 B CN105423923 B CN 105423923B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/02—Profile gauges, e.g. loading gauges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention provides a kind of take turns and demarcates verification device and calibration verification method to shape size detecting system, and the first calibration plane and the second calibration plane that at least two linear light sources irradiate calibration verification device is respectively adopted；Using the light transversal of the first calibration plane of image collecting device shooting and the second calibration plane；Calculate the first calibration plane, the spatial plane equation of the line segment equation of the second calibration plane glazing transversal, the spatial plane equation of the first calibration plane, the second calibration plane；Judge whether the first calibration plane glazing transversal is respectively less than given threshold to the first distance of the spatial plane equation of the second calibration plane, the second calibration plane glazing transversal to the second distance of the empty facial plane equation of the first calibration plane, and then judges whether wheel is qualified to the calibration of shape size detecting system.Whether such method can determine whether to take turns the calibration to shape size detecting system qualified, and then judge that subsequent detection could be used for, and prevent the Wheel set detecting mistake caused by systematic error is excessive.
Description
Technical field
The present invention relates to rolling stock wheels to automatic measurement technique field, more particularly to a kind of wheel is to shape size detection system
System calibration verification device；It separately further relates to a kind of take turns and verification method is demarcated to shape size detecting system.
Background technology
The critical component to being locomotive walking is taken turns, wheel is directly related to traffic safety to shape critical size.Therefore how
Fast and effectively wheelset profile is accurately measured, the attrition of detection wheel pair determines a need for replacing wheel pair, to protecting
Card safety of railway traffic is of great significance.
Currently, mainly having contact measuring method, image measuring method to the method that appearance and size is detected to wheel.Wherein,
Image measurement method is that untouchable detection is used widely because of it.Existing non-contact Wheel set detecting method is shone using linear light source
Wheel pair is penetrated, light is captured in wheel to upper light transversal by image capture device, realizes measurement of the wheel to shape geometric dimension, by
Appearance and size is measured in being taken turns using image measurement method, needs the position for demarcating determining linear light source and image capture device
Set the position relationship between relationship and different images collecting device.It is existing wheel to shape size detecting system calibration whether
Be correctly by judge the distance between all parts, angle whether meet set angle judge calibration it is whether correct, but due to
Manual operation reason and measurement error although calibration is completed but still may make equipment is in demarcate unqualified state, and do not conform to
The calibration of lattice will to take turns system deviation occur to the measurement data of appearance and size, and subsequent test result is caused not meet really
Wheelset profile situation.Therefore, the technical issues of whether calibration succeeds, be those skilled in the art's urgent need to resolve how judged.
Invention content
Calibration and unqualified and shadow may be caused using calibration in advance to shape size detecting system to solve existing wheel
The problem of ringing follow-up test result, the present invention provide a kind of take turns and are tested with calibration verification device and calibration shape size detecting system
Card method.
The present invention provides a kind of take turns to shape size detecting system calibration verification device, including the first scaling board, second
Scaling board, the intermediate bar for being fixedly connected with first scaling board and second scaling board；First scaling board has first
Plane is demarcated, second scaling board has the second calibration plane, the first calibration plane and the second calibration plane total
Face.
Optionally, there is handle member on the intermediate bar.
Optionally, also there is the supporting rib for preventing first scaling board and second scaling board from deforming.
The present invention provides a kind of take turns and demarcates verification method to shape size detecting system, using foregoing wheel to shape
Size detecting system calibration verification device, it is characterised in that：
At least two linear light sources irradiation, the first calibration plane and the second calibration plane is respectively adopted；
Using shot with the corresponding image collecting device of the first calibration plane the first calibration plane light transversal,
The light transversal of the second calibration plane is shot using image collecting device corresponding with the second calibration plane；
Calculate separately the first calibration plane, the line segment equation of the second calibration plane glazing transversal, by described the
At least two light transversals are fitted to obtain the spatial plane equation of the first calibration plane, be put down by second calibration in one calibration plane
At least two light transversals are fitted to obtain the spatial plane equation of the second calibration plane on face；
Judge it is described first calibration plane glazing transversal to it is described second demarcate plane spatial plane equation first away from
From, it is described second calibration plane glazing transversal to it is described first demarcate plane empty facial plane equation second distance it is whether small
In given threshold；
If first distance and the second distance are respectively less than given threshold, judge the wheel to shape size detection system
System calibration is qualified；If at least one first distance or the second distance are greater than or equal to given threshold, described in judgement
Wheel demarcates shape size detecting system unqualified.
Wheel provided by the invention is to shape size detecting system calibration verification device and calibration verification method, wherein demarcating
Verifying device has the first calibration plane in the same plane, the second calibration plane, utilizes the first calibration of linear light source irradiation
The light transversal that plane, the second calibration plane are formed, the line segment equation of light transversal is obtained using image collecting device, can be obtained two
Whether the plane equation of plane meets setting according to the distance of a plane glazing transversal to the plane equation of another plane
Threshold value just can determine that whether wheel is correct to the calibration of shape size detecting system, can prevent the appearance and size that do not demarcate correctly to examine
Examining system is used for subsequent detection, prevents the testing result mistake caused by mark calibration is unqualified.
Description of the drawings
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 technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings；
Fig. 1 is that wheel demarcates verification schematic device to shape size detecting system in the specific embodiment of the invention；
Wherein：The first scaling boards of 1-, the second scaling boards of 2-, 3- handle members, 4- supporting ribs, 5- intermediate bars；
Fig. 2 is to be taken turns to shape size detecting system scaling method schematic diagram in the specific embodiment of the invention.
Specific implementation mode
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 describes, 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.
If Fig. 1, Fig. 1 are that wheel demarcates verification device signal to shape size detecting system in the specific embodiment of the invention
Figure, this verification device include the first scaling board 1, the second scaling board 2, are fixedly connected in the first calibration and the second scaling board 2
Between bar 5；There is the first calibration plane, the second scaling board 2 to have the second calibration plane, the first calibration plane on first scaling board 1
With the second calibration co-planar.
Aforementioned first calibration plane and the second calibration co-planar do not imply that the two is absolutely coplanar, due to actual processing work
Skill limits, and two calibration planes can not be completely coplanar, but as long as ensureing difference in height between the two, differential seat angle in setting range
It is interior to meet calibration verification demand.
In actual use, calibration verification device is placed on wheel on the rail on the upside of shape size detecting system, distinguishing
The the first calibration plane and the second calibration plane that verification device is demarcated by corresponding linear light source irradiation on calibration verification device, due to
Practical two calibration planes are same plane, and the light transversal being radiated in two calibration planes also is located at same plane, still
If since wheel is not properly positioned corresponding image capture device in shape size detecting system, according to image capture device
Just it will appear between first calibration plane of shooting, the second obtained corresponding two plane equations of calibration plane larger inclined
Difference, deviation just can determine whether corresponding image capture device position is correct accordingly, that is, judgement wheel is to shape size detection
Whether the calibration of system is correct.
In practical application, it is placed on rail for convenience of the hand-held calibration verification device of operating personnel and carries out calibration verification,
Also there is handle member 3, operating personnel are hand-held just easily to pick and place addressee calibration verification device on intermediate bar.
Further, because the first scaling board 1, the second scaling board 2 need large-size, and it is to reduce entire calibration verification
The weight of device, 5 sectional dimension of corresponding intermediate bar is smaller, and the first scaling board 1 and the second scaling board 2 is caused to deform, make in this way
The authentication function failure of verification device must be demarcated.For this purpose, in the specific implementation mode of the present invention, also have and the first scaling board
1 and intermediate bar be fixedly connected, be fixedly connected with the second scaling board 2 and intermediate bar, prevent respectively the first scaling board 1 and second mark
The supporting rib 4 that fixed board 2 deforms.Such as Fig. 1, the reverse side of plane, the second calibration plane is demarcated in the setting of supporting rib 4 first, can be direct
It is welded on scaling board and intermediate bar, can also be used bonding or mode that other skilled in the art is contemplated that is fixed.
In addition, the present invention also provides a kind of wheels to demarcate verification method to shape size detecting system.It can according to the prior art
Know, position relationship of the wheel to linear light source, image capture device in shape size verification system is just may be assumed that after being demarcated
Meet and meet preset space location relationship, using wheel to linear light source, the image collecting device and preceding in shape size verification device
The calibration verification device and preset space location relationship stated, so that it may which whether judgement calibration is correct.
Specifically, the step of this verification method, is as follows：
S101：Using the first calibration plane of at least two linear light sources irradiation and the second calibration plane；
S102：Using the light transversal of image capture device shooting corresponding with the first calibration plane the first calibration plane, adopt
With the light transversal of image capture device shooting corresponding with the second calibration plane the second calibration plane；
S103：The line segment equation for calculating the first calibration plane glazing transversal is fitted by the first calibration plane glazing transversal
To the spatial plane equation of the first calibration plane；It calculates the line segment equation of the second calibration plane glazing transversal, put down by the second calibration
Face glazing transversal is fitted to obtain the spatial plane equation of the second calibration plane；
S104：Judge first calibration plane glazing transversal to second calibration plane spatial plane equation first distance,
Whether the second distance of the second calibration plane glazing transversal to the spatial plane equation of the first calibration plane is respectively less than given threshold；
If the first distance and second distance are respectively less than given threshold, it is correct to judge that wheel demarcates shape size detecting system；
If at least one first distance or second distance are more than or equal to given threshold, judge that wheel demarcates shape size detecting system
Mistake.
Above-mentioned scaling method is written in software, after completing the calibration of linear light source and image capture device, so that it may adopt
It is whether qualified with calibration verification device verification calibration.
It should be noted that the first foregoing distance is the first calibration plane glazing transversal to the space of the second calibration plane
The shortest distance of plane equation, same second distance are that the space of the second calibration plane glazing transversal to the first calibration plane is flat
The shortest distance of face equation.
In a specific embodiment, two the first calibration planes of linear light source irradiation and the second calibration plane is respectively adopted,
Obtain the light transversal line segment L being located in the first calibration plane1、L2, obtain the light transversal line segment L being located in the second calibration plane3、
L4.Utilize L1、L2To the first distance of the spatial plane equation of the second calibration plane, L3、L4Space to the first calibration plane is flat
The second distance of face equation determines whether that calibration is qualified；Certainly, the calibration verification more than can also being realized using more linear light sources
Function.
Above to the wheel in the embodiment of the present invention to shape size detecting system with calibration verification device and verification method into
It has gone and has been discussed in detail.Applying specific case herein, principle and implementation of the present invention are described, above example
Explanation be merely used to help understand the core idea of the present invention, without departing from the principles of the present invention, can also be to this hair
Bright some improvement and modification can also be carried out, these improvement and modification are also fallen within the scope of the present invention.
Claims (1)
1. a kind of wheel demarcates verification method to shape size detecting system, the calibration of shape size detecting system is tested using a kind of wheel
Card device, the verification device include the first scaling board, the second scaling board, are fixedly connected with first scaling board and second mark
The intermediate bar of fixed board；There is first scaling board the first calibration plane, second scaling board to have the second calibration plane, institute
State the first calibration plane and the second calibration co-planar；It is characterized in that：
At least two linear light sources irradiation, the first calibration plane and the second calibration plane is respectively adopted；
The light transversal of the first calibration plane is shot using image collecting device corresponding with the first calibration plane, is used
Image collecting device corresponding with the second calibration plane shoots the light transversal of the second calibration plane；
It calculates separately the first calibration plane, the line segment equation of the second calibration plane glazing transversal, marked by described first
At least two light transversals on face are allocated to be fitted to obtain the spatial plane equation of the first calibration plane, be demarcated in plane by described second
At least two light transversals are fitted to obtain the spatial plane equation of the second calibration plane；
Judge the first distance, the institute of the spatial plane equation that the first calibration plane glazing transversal demarcates plane to described second
Whether the second distance for stating the second calibration plane glazing transversal to the empty facial plane equation of the first calibration plane, which is respectively less than, sets
Determine threshold value；
If first distance and the second distance are respectively less than given threshold, judge the wheel to shape size detecting system mark
Fixed qualification；If at least one first distance or the second distance are greater than or equal to given threshold, the wheel pair is judged
The calibration of appearance and size detecting system is unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033171.5A CN105423923B (en) | 2015-12-31 | 2015-12-31 | A kind of take turns demarcates verification method to shape size detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033171.5A CN105423923B (en) | 2015-12-31 | 2015-12-31 | A kind of take turns demarcates verification method to shape size detecting system |
Publications (2)
| Publication Number | Publication Date |
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| CN105423923A CN105423923A (en) | 2016-03-23 |
| CN105423923B true CN105423923B (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511033171.5A Active CN105423923B (en) | 2015-12-31 | 2015-12-31 | A kind of take turns demarcates verification method to shape size detecting system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110196033A (en) * | 2019-06-21 | 2019-09-03 | 中国神华能源股份有限公司 | Dynamic calibration apparatus and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202814413U (en) * | 2012-09-28 | 2013-03-20 | 北京航天计量测试技术研究所 | High-precision calibration plate for calibrating camera parameters |
| CN204214634U (en) * | 2014-12-03 | 2015-03-18 | 东莞市神州视觉科技有限公司 | Multifunction high-precision scaling board |
| CN204854773U (en) * | 2015-08-19 | 2015-12-09 | 深圳科澳汽车科技有限公司 | Many scaling boards composite set |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910707Y (en) * | 2006-06-23 | 2007-06-13 | 西南交通大学 | On-line dynamic testing equipment for shape and size of rolling stock wheel set |
| NL1032662C2 (en) * | 2006-10-11 | 2008-04-14 | Maasland Nv | System for delimiting an area. |
| CN104482870B (en) * | 2014-12-18 | 2018-07-06 | 成都铁安科技有限责任公司 | A kind of locomotive wheel diameter detection method |
| CN204388802U (en) * | 2015-01-19 | 2015-06-10 | 长春师范大学 | Line-structured light vision system calibration plate |
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2015
- 2015-12-31 CN CN201511033171.5A patent/CN105423923B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202814413U (en) * | 2012-09-28 | 2013-03-20 | 北京航天计量测试技术研究所 | High-precision calibration plate for calibrating camera parameters |
| CN204214634U (en) * | 2014-12-03 | 2015-03-18 | 东莞市神州视觉科技有限公司 | Multifunction high-precision scaling board |
| CN204854773U (en) * | 2015-08-19 | 2015-12-09 | 深圳科澳汽车科技有限公司 | Many scaling boards composite set |
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