CN105423923A - Calibration verification device and calibration verification method for wheel pair external dimension detecting system - Google Patents
Calibration verification device and calibration verification method for wheel pair external dimension detecting system Download PDFInfo
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- CN105423923A CN105423923A CN201511033171.5A CN201511033171A CN105423923A CN 105423923 A CN105423923 A CN 105423923A CN 201511033171 A CN201511033171 A CN 201511033171A CN 105423923 A CN105423923 A CN 105423923A
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- plane
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- demarcation
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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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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a calibration verification device and a calibration verification method for a wheel pair external dimension detecting system. The calibration verification method comprises the steps of irradiating a first calibration plane and a second calibration plane of a calibration verification device by means at least two line light sources; photographing light intercepting lines of the first calibration plane and the second calibration plane by means of an image acquisition device; calculating a line segment equation of light intercepting lines on the first calibration surface and the second calibration surface, a spatial plane equation of the first calibration plane, and a spatial plane equation of the second calibration plane; determining whether a first distance between the light intercepting line on the first calibration plane to the spatial plane equation of the second calibration plane and a second distance between the light intercepting line on the second calibration plane to the spatial plane equation of the first calibration plane are smaller than a preset threshold, and further determining whether calibration of the wheel pair dimension detecting system is qualified. The calibration verification method can determine whether calibration of the wheel pair external dimension detecting system is qualified and furthermore determines whether the wheel pair external dimension detecting system can be used for subsequent detection, thereby preventing wheel pair detection mistakes caused by an overlarge system error.
Description
Technical field
The present invention relates to rolling stock wheel to Automatic Measurement Technique field, particularly one wheel is to profile size detecting system demarcation demo plant; The another one wheel that also relates to demarcates verification method to profile size detecting system.
Background technology
Taking turns the critical component to being locomotive walking, taking turns and traffic safety is directly connected to profile critical size.Therefore how fast and effectively wheelset profile accurately to be measured, detect the right attrition of wheel, determine whether that needs replacing wheel is right, significant to guarantee safety of railway traffic.
At present, to the method that physical dimension detects, contact measuring method, image measuring method are mainly contained to wheel.Wherein, image measurement method is used widely for untouchable detection because of it.It is right that existing noncontact Wheel set detecting method adopts line source to irradiate wheel, by image capture device capture light wheel on light transversal, realize the measurement of wheel to profile physical dimension, owing to adopting image measurement method to carry out taking turns measuring physical dimension, the position relationship between position relationship and different images collecting device determining line source and image capture device demarcated by needs.Existing take turns to profile size detecting system demarcate be correctly whether by judging distance between all parts, whether angle meets set angle judges whether demarcation correct, but due to manual operation reason and measuring error, although demarcated but still equipment may be made to be in and demarcated defective state, and underproof demarcation occurs system deviation by making wheel to the measurement data of physical dimension, follow-up test result is caused not meet true wheelset profile situation.Therefore, how judging that whether demarcation is successful, is the technical matters that those skilled in the art need solution badly.
Summary of the invention
For solve existing take turns to adopt to demarcate to cause on profile size detecting system in advance to demarcate and defective and affect the problem of follow-up test result, the invention provides a kind of wheel and demo plant and demarcation verification method demarcated to profile size detecting system.
The invention provides a kind of wheel to profile size detecting system demarcation demo plant, comprise the first scaling board, the second scaling board, be fixedly connected with the intermediate bar of described first scaling board and described second scaling board; Described first scaling board has the first demarcation plane, and described second scaling board has the second demarcation plane, and described first demarcates plane and described second demarcates co-planar.
Optionally, described intermediate bar has handle member.
Optionally, also there is the brace rod for preventing described first scaling board and described second scaling board distortion.
The invention provides a kind of wheel and demarcate verification method to profile size detecting system, the foregoing wheel of employing, is characterized in that with demarcating demo plant profile size detecting system:
Adopt at least two line sources to irradiate described first respectively and demarcate plane and described second demarcation plane;
Adopt and described first demarcate image collecting device corresponding to plane and take the described first light transversal demarcating plane, adopt and demarcate image collecting device corresponding to plane with described second and take the light transversal that described second demarcates plane;
Calculate respectively described first demarcate plane, described second demarcate plane glazing transversal line segment equation, to demarcate by described first at least two light transversals matching in plane obtain the first demarcation plane space plane equation, demarcate at least two light transversals matching in plane by described second and obtain the space plane equation of the second demarcation plane;
Judge that described first demarcation plane glazing transversal is demarcated plane glazing transversal to the first distance, described second that described second demarcates the space plane equation of plane and whether is all less than setting threshold value to the second distance that described first demarcates the empty facial plane equation of plane;
If second distance is all less than setting threshold value described in described first Distance geometry, judge described take turns to profile size detecting system demarcate qualified; If have at least described first distance or described second distance to be more than or equal to setting threshold value, judge that described wheel is demarcated defective to profile size detecting system.
Provided by the invention wheel demarcates demo plant and demarcation verification method to profile size detecting system, wherein demarcate demo plant and there is the first demarcation plane in the same plane, second demarcates plane, utilize line source to irradiate first and demarcate plane, the light transversal that second demarcation plane is formed, image collecting device is utilized to obtain the line segment equation of light transversal, the plane equation of two planes can be obtained, whether meet setting threshold value according to a plane glazing transversal to the distance of the plane equation of another one plane and just can judge whether wheel is correct to the demarcation of profile size detecting system, incorrect physical dimension detection system of demarcating can be prevented for follow-up detection, prevent because demarcating the defective testing result mistake caused.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings;
Fig. 1 takes turns in the specific embodiment of the invention to demarcate demo plant schematic diagram to profile size detecting system;
Wherein: 1-first scaling board, 2-second scaling board, 3-handle member, 4-brace rod, 5-intermediate bar;
Fig. 2 takes turns in the specific embodiment of the invention profile size detecting system scaling method schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As Fig. 1, Fig. 1 take turns in the specific embodiment of the invention to demarcate demo plant schematic diagram to profile size detecting system, this demo plant comprises the first scaling board 1, second scaling board 2, is fixedly connected with the intermediate bar 5 of the first demarcation and the second scaling board 2; First scaling board 1 has the first demarcation plane, the second scaling board 2 has the second demarcation plane, and first demarcates plane and second demarcates co-planar.
Aforementioned first demarcation plane and second is demarcated co-planar and is not referred to that the two is definitely coplanar, because actual processing technology limits, demarcating plane for two can not be completely coplanar, as long as but guarantee difference in height therebetween, differential seat angle just can meet demarcation checking demand in setting range.
During actual use, demarcation demo plant is placed on wheel on the rail on the upside of profile size detecting system, demarcate plane and second by demarcate corresponding line source irradiation demarcation demo plant on demo plant first respectively and demarcate plane, due to two demarcate plane actual be same plane, and the light transversals be radiated in two demarcation planes are also positioned at same plane, if but owing to taking turns, image capture device corresponding in profile size detecting system is not correctly located, according to image capture device shooting first demarcates plane, larger deviation is just there will be between corresponding two plane equations that second demarcation plane obtains, deviation just can judge that whether corresponding image capture device position is correct accordingly, namely judge that whether wheel is correct to the demarcation of profile size detecting system.
In practical application, be placed on the enterprising rower of rail surely verify also have handle member 3 on intermediate bar for convenience of operating personnel's hand-held demarcation demo plant, operating personnel are hand-held just picks and places demarcation demo plant easily addressee.
Further, because the first scaling board 1, second scaling board 2 needs large-size, and being the weight reducing whole demarcation demo plant, corresponding intermediate bar 5 sectional dimension is less, causes the first scaling board 1 and the second scaling board 2 to be out of shape like this, the authentication function demarcating demo plant was lost efficacy.For this reason, in the specific embodiment of the present invention, also there is the brace rod 4 being fixedly connected with intermediate bar with the first scaling board 1, being fixedly connected with, preventing the first scaling board 1 and the second scaling board 2 to be out of shape respectively with the second scaling board 2 with intermediate bar.As Fig. 1, brace rod 4 arranges the first demarcation plane, second and demarcates the reverse side of plane, and it can directly be welded on scaling board and intermediate bar, and the mode that bonding or other those skilled in the art also can be adopted to expect is fixed.
In addition, the present invention also provides a kind of wheel to demarcate verification method to profile size detecting system.According to prior art, after carrying out demarcation, just can suppose that wheel meets the position relationship of the line source in profile size verification system, image capture device meet set spatial position relation, adopt wheel to the line source in profile size verification device, image collecting device and aforesaid demarcation demo plant and set spatial position relation, just can judge whether demarcation is correct.
Concrete, the step of this verification method is as follows:
S101: adopt at least two line sources to irradiate first and demarcate plane and the second demarcation plane;
S102: employing and first is demarcated image capture device corresponding to plane and taken the light transversal that first demarcates plane, employing and second is demarcated image capture device corresponding to plane and is taken the light transversal that second demarcates plane;
S103: calculate the line segment equation that first demarcates plane glazing transversal, demarcates by first the space plane equation that the matching of plane glazing transversal obtains the first demarcation plane; Calculate the line segment equation of the second demarcation plane glazing transversal, demarcate by second the light transversal that the matching of plane glazing transversal obtains the second demarcation plane;
S104: judge that the first demarcation plane glazing transversal is demarcated plane glazing transversal to the first distance, second that second demarcates the space plane equation of plane and whether is all less than setting threshold value to the second distance that first demarcates the space plane equation of plane;
If the first Distance geometry second distance is all less than setting threshold value, judge that wheel is demarcated correct to profile size detecting system; If have at least one first distance or second distance to be more than or equal to setting threshold value, then judge that wheel demarcates mistake to profile size detecting system.
By in above-mentioned scaling method write software, after the demarcation completing line source and image capture device, the checking of demarcation demo plant just can be adopted whether qualified to demarcate.
It should be noted that above said first distance is the first demarcation plane glazing transversal to second demarcating the bee-line of the space plane equation of plane, same second distance is the second demarcation plane glazing transversal demarcates the space plane equation of plane bee-line to first.
In an embodiment, adopt two line sources to irradiate first respectively and demarcate plane and the second demarcation plane, obtain the light transversal line segment L be positioned in the first demarcation plane
1, L
2, obtain the light transversal line segment L be positioned in the second demarcation plane
3, L
4.Utilize L
1, L
2the first distance of the space plane equation of plane is demarcated, L to second
3, L
4determine whether that demarcation is qualified to the first second distance demarcating the space plane equation of plane; Certainly, more line source is adopted also can to realize above demarcation authentication function.
Above the wheel in the embodiment of the present invention is described in detail profile size detecting system demarcation demo plant and verification method.Apply specific case herein to set forth principle of the present invention and embodiment; the explanation of above embodiment just understands core concept of the present invention for helping; without departing from the principles of the present invention; also can carry out some improvement and modification to the present invention, these improve and modify and also fall within the scope of protection of the present invention.
Claims (4)
1. wheel is to profile size detecting system with demarcating a demo plant, it is characterized in that: comprise the first scaling board, the second scaling board, be fixedly connected with the intermediate bar of described first scaling board and described second scaling board; Described first scaling board has the first demarcation plane, and described second scaling board has the second demarcation plane, and described first demarcates plane and described second demarcates co-planar.
2. according to claim 1 wheel demarcates demo plant to profile size detecting system, it is characterized in that: described intermediate bar has handle member.
3. according to claim 2 wheel demarcates demo plant to profile size detecting system, it is characterized in that: also have the brace rod for preventing described first scaling board and described second scaling board distortion.
4. wheel demarcates a verification method to profile size detecting system, adopts the wheel as described in any one of claim 1-3 to demarcate demo plant to profile size detecting system, it is characterized in that:
Adopt at least two line sources to irradiate described first respectively and demarcate plane and described second demarcation plane;
Adopt and described first demarcate image collecting device corresponding to plane and take the described first light transversal demarcating plane, adopt and demarcate image collecting device corresponding to plane with described second and take the light transversal that described second demarcates plane;
Calculate respectively described first demarcate plane, described second demarcate plane glazing transversal line segment equation, to demarcate by described first at least two light transversals matching in plane obtain the first demarcation plane space plane equation, demarcate at least two light transversals matching in plane by described second and obtain the space plane equation of the second demarcation plane;
Judge that described first demarcation plane glazing transversal is demarcated plane glazing transversal to the first distance, described second that described second demarcates the space plane equation of plane and whether is all less than setting threshold value to the second distance that described first demarcates the empty facial plane equation of plane;
If second distance is all less than setting threshold value described in described first Distance geometry, judge described take turns to profile size detecting system demarcate qualified; If have at least described first distance or described second distance to be more than or equal to setting threshold value, judge that described wheel is demarcated defective to profile size detecting system.
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 |
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| 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 |
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| CN105423923A true CN105423923A (en) | 2016-03-23 |
| CN105423923B CN105423923B (en) | 2018-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN105423923B (en) | 2018-10-16 |
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