CN105292178B - Online tramcar wheel diameter measuring method - Google Patents
Online tramcar wheel diameter measuring method Download PDFInfo
- Publication number
- CN105292178B CN105292178B CN201510657099.7A CN201510657099A CN105292178B CN 105292178 B CN105292178 B CN 105292178B CN 201510657099 A CN201510657099 A CN 201510657099A CN 105292178 B CN105292178 B CN 105292178B
- Authority
- CN
- China
- Prior art keywords
- high speed
- speed camera
- wheel
- end points
- field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003384 imaging method Methods 0.000 claims abstract description 19
- 230000000007 visual effect Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 15
- 230000001186 cumulative effect Effects 0.000 abstract description 3
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
A kind of online tramcar wheel diameter measuring method, comprises the following steps：(1) image, is obtained, one group of imaging modules is provided, the imaging modules include the first high speed camera, the second high speed camera, first laser light source, second laser light source and alignment sensor, and the distance of the first high speed camera and the second high speed camera field of view center direction along ng a path is L；(2) offset distance, is detected, when alignment sensor is sensed corresponding to alignment sensor that the minimum point of wheel is pressed on track, the first high speed camera is triggered and the second high speed camera is taken pictures to wheel；(3) the diameter D that wheel diameter, the offset distance of the relatively corresponding field of view center of end points P1, P2 in photo, and the distance between the first high speed camera and the second high speed camera field of view center L calculate wheel, is calculated.The present invention by setting imaging modules, can direct measurement tramcar wheel diameter, measurement is accurate, and error is small, avoids the cumulative errors for measuring and bringing indirectly, simple and fast.
Description
Technical field
The present invention relates to a kind of wheel diameter measuring method, more particularly to a kind of online tramcar wheel diameter measurement side
Method.
Background technology
Wheel is the critical component of railcar train running gear, is the part that train is in contact with rail, and industry institute
The wheel pair said.And the important parameter that wheel diameter is run as train wheel, it is related to train traffic safety, wheel diameter
Deviation value will cause greatly very much the accidents such as train off-axis, rollover, derailing, therefore, straight to wheel to ensure the safety of train driving
It is very necessary that footpath carries out accurately measurement.
Because tramcar wheel nearby has the shelters such as pilot, blast tube, magnetic rail brake device, common diameter detection
Method does not apply to.At present, domestic train wheel diameter detection is broadly divided into two parts of Static Detection and dynamic detection, uses
During Static Detection, real-time is poor, expends a large amount of manpowers, and efficiency is low.And car inspection and repair acts out one's plan maintenance, operation
The wheel parameter changing condition and catastrophic failure of vehicle are not easy to find in time, and hand inspection workload is big, and missing inspection easily occurs.
The deficiency of Static Detection can be made up to a certain extent by the way of dynamic detection, reduce the workload of detection, mesh
Preceding dynamic detection in the industry is mostly use indirect measure, and system complex, the stability of this kind of amount of there not being mode are poor, install maintenance
Measure larger and measurement error be difficult reach require, reliability is not high so that train in the process of moving, exist safety it is hidden
Suffer from.
The content of the invention
Based on this, it is necessary to for deficiency of the prior art, there is provided high online of a kind of direct measurement diameter, accuracy
Tramcar wheel diameter measuring method.
A kind of online tramcar wheel diameter measuring method, the wheel diameter measuring method comprise the following steps：
Step (1)：Obtain image, there is provided one group of imaging modules, the imaging modules include the first high speed camera, second at a high speed
Camera, first laser light source, second laser light source and alignment sensor, the imaging modules are installed on the inner side of track, described
First laser light source, the first high speed camera, alignment sensor, the second high speed camera, second laser light source are arranged successively from left to right
Row, the alignment sensor are centrally located between the first high speed camera and the second high speed camera；First high speed camera
The distance of the relative position of the field of view center direction along ng a path of field of view center and the second high speed camera is L；
When top of the wheel of train Jing Guo imaging modules, the alignment sensor senses that the minimum point of wheel is pressed in
The position of track corresponding to orientation sensing, the alignment sensor trigger the first high speed camera and the second high speed camera to wheel
Taken pictures side；Now the first high speed camera and the second high speed camera photographed wheel parallel to the two of the diameter line of track respectively
The photo of piece wheel wheel rim where end points P1, the P2 at end, and the end points P1 is located at what the first high speed camera was taken a picture
High order end, end points P2 are located at the right-hand member that the second high speed camera is taken a picture；
Step (2)：Offset distance is detected, the photo photographed is back in a central processing unit and surveyed by the imaging modules
Amount；And detect the end points P1 and second on the leftmost side at the wheel edge in the photo that first high speed camera is taken at a high speed
Camera clap photo in wheel edge the rightmost side end points P2 position, set respectively in photo the first high speed camera and
The position of second high speed camera field of view center；Using track as X-axis coordinate line, central processing unit is relatively corresponding to the end points P1 of photo
The first high speed camera relatively corresponding second high speed camera of field of view center, end points P2 field of view center in the inclined of X-direction
Away from measuring；
Step (3)：Wheel diameter is calculated, according to relatively corresponding first high speed camera of end points P1, end points P2 in photo
Field of view center, the field of view center of the second high speed camera calculate the diameter D of wheel in the offset distance of X-direction；End points P1 is in X-direction
On the offset distance of field of view center of relatively corresponding first high speed camera be L1, end points P2 in the X-axis direction relatively corresponding second
The offset distance of the field of view center of high speed camera is L2, then D=L+L1+L2.
Further, in the step (1), the visual field width of first high speed camera and the second high speed camera be less than or
Equal to 140mm.
Further, in the step (3), the end points P1 is located at the left side of the field of view center of the first high speed camera, then
Offset distance L1 is positive, conversely, then offset distance L1 is negative value positioned at right side；The point P2 is located in the visual field of the second high speed camera
The right side of the heart, then offset distance L2 is positive, conversely, then offset distance L2 is negative value positioned at left side.
Compared with prior art, the laser that the present invention is sent by first laser light source and second laser light source is to wheel
Irradiation, the first high speed camera and the second high speed camera, which take pictures, reads wheel parallel to the both ends on the same diameter line of track
Point position, and detect the two-end-point relative to corresponding first high speed camera, the second high speed camera field of view center it is inclined
Away from along with the first high speed camera and the spacing L of the field of view center direction along ng a path of the second high speed camera, so as to can obtain wheel
Diameter, measurement is accurate, and error is small, simple and fast.And the present invention can direct measurement wheel diameter, avoid indirectly measurement bring
Cumulative errors.
Brief description of the drawings
Fig. 1 is imaging modules and the main view of wheel used in the online tramcar wheel diameter measuring method of the present invention
Figure.
Fig. 2 to Fig. 3 be end points P1, P2 relative to viewing field of camera center different deviation positions when two kinds of schematic diagrames.
Embodiment
In order that technical scheme can more clearly show, the present invention is made below in conjunction with the accompanying drawings further
Explanation.
With reference to shown in Fig. 1, a kind of online tramcar wheel diameter measuring method provided by the invention, for track rail
The diameter of the wheel passed through on road measures, and comprises the following steps：
Step (1)：Obtain image, there is provided one group of imaging modules, it is high that the imaging modules include the first high speed camera 21, second
Fast camera 22, first laser light source 31, second laser light source 32 and alignment sensor 10, the imaging modules are installed on track
Inner side, the first laser light source 31, the first high speed camera 21, alignment sensor 10, the second high speed camera 22, second laser light
Source 32 is arranged in order from left to right, and the first laser light source 31 is arranged at the left side of the first high speed camera 21, is the first high speed
Camera 21 provide light source, enable the first high speed camera 21 it is apparent photograph wheel；The second laser light source 32 is arranged at
The right side of second high speed camera 22, light source is provided for the second high speed camera 22, the alignment sensor 10 is centrally located in first
Between the high speed camera 22 of high speed camera 21 and second；
The phase of the field of view center of first high speed camera 21 and the field of view center direction along ng a path of the second high speed camera 22
Distance to position is L；The visual field width of first high speed camera 21 and the second high speed camera 22 is less than or equal to 140mm, and car
Wheel diameter is between 540-620mm, by the measurement that the measurement of major diameter is converted into small size so that the first high speed camera 21
And second high speed camera 22 can carry out high-precision measurement；
When the wheel of train passes through corresponding to the imaging modules on track, the alignment sensor 10 senses wheel
Minimum point be pressed in the position of track corresponding to orientation sensing 10, the alignment sensor 10 triggers the first high speed camera 21 and the
Two high speed cameras 22 are taken pictures to the side of wheel；Now, the first high speed camera 21 and the second high speed camera 22 photographed respectively
Wheel parallel to the piece wheel wheel rim where two-end-point P1, P2 of the diameter line of track photo, specifically, the first high speed phase
The left photo A that machine 21 photographed is the left part edge of wheel, and the right photograph B that the second high speed camera 22 photographed is wheel
Right part edge, and the end points P1 is located at the leftmost side that the first high speed camera 21 claps left photo A, end points P2 is positioned at the
Two high speed cameras 22 clap the right photograph B rightmost side；
Step (2)：Offset distance is detected, the photo photographed is back in a central processing unit and surveyed by the imaging modules
Amount；And detect the end points P1 and the second high speed camera of the leftmost side in the left photo A that first high speed camera 21 is clapped
The end points P2 of the rightmost side in the 22 right photograph B clapped positional information is clapped, respectively in left photo 30 and right photograph 40
The position of the first high speed camera 21 of middle setting and the field of view center of the second high speed camera 22；Using track as X-axis coordinate line, central processing
Device is to relatively corresponding second high speed cameras 22 of field of view center, end points P2 of relatively corresponding first high speed cameras 21 of end points P1
Field of view center measures in the offset distance of X-direction；
Step (3)：Wheel diameter is calculated, according to relatively corresponding first high speed camera 21 of end points P1, end points P2 in photo
Field of view center, the second high speed camera 22 field of view center X-direction offset distance calculate wheel diameter D；End points P1 is in X-axis
The offset distance of the field of view center of relatively corresponding first high speed camera 21 is L1 on direction, and end points P2 is relatively corresponding in the X-axis direction
The offset distance of field of view center of the second high speed camera 22 be L2, then D=L+L1+L2；If end points P1 is located at the first high speed camera 21
The left side of field of view center, then L1 is positive；If point P1 is located at the right side of the field of view center of the first high speed camera 21, L1 is negative
Value；If point P2 is located at the right side of the field of view center of the second high speed camera 22, L2 is positive, if point P2 is located at the second high speed camera
The left side of 22 field of view center, then L2 is negative value；As shown in Fig. 2 in the left photo A, end points P1 is deviated to the right in visual field
The heart, then P1 to field of view center point offset distance L1 is negative value；In the right photograph B, end points P2 is deviated to the left field of view center, then
P2 is negative value with respect to the offset distance L2 of field of view center.As shown in figure 3, in the left photo A, end points P1 is deviated to the left in visual field
The heart, then P1 to field of view center point offset distance L3 is positive；In the right photograph B, end points P2 is deviated to the right field of view center, then
P2 is positive with respect to the offset distance L4 of field of view center.
In the present embodiment, the operation principle of the alignment sensor 10 be by inside magnet steel fill high-intensity magnetic field with after,
The coil of high strength enamelled wire coiling is put, covers aluminium cover again with epoxy packages；When train, which passes through, to be passed through, the wheel rim of wheel from
Magnetic head end face on the inside of track is stuck in by, cutting magnetic line, the induced electromotive force of a sine wave, i.e. wheel are produced on coil
That moment with the line of centres of magnetic head with track into vertical line, this moment induced voltage change, the first high speed camera 21 and
Second high speed camera 22 is in this time trigger, so as to photograph the photo of the left side edge of wheel and right side edge.
Irradiation of the laser that the present invention is sent by first laser light source 31 and second laser light source 32 to wheel, first is high
The fast high speed camera 22 of camera 21 and second, which take pictures, reads position of the wheel parallel to the two-end-point on the same diameter line of track
Put, and detect the two-end-point relative to corresponding first high speed camera 21, the offset distance of the field of view center of the second high speed camera 22,
Along with the first high speed camera 21 and the spacing L of the field of view center direction along ng a path of the second high speed camera 22, so as to can obtain car
The diameter of wheel, measurement is accurate, and error is small, simple and fast.And the present invention can direct measurement wheel diameter, avoid indirectly measurement band
The cumulative errors come.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (3)
- A kind of 1. online tramcar wheel diameter measuring method, it is characterised in that：The wheel diameter measuring method includes as follows Step：Step (1)：Obtain image, there is provided one group of imaging modules, the imaging modules include the first high speed camera, the second high speed phase Machine, first laser light source, second laser light source and alignment sensor, the imaging modules are installed on the inner side of track, and described One LASER Light Source, the first high speed camera, alignment sensor, the second high speed camera, second laser light source are arranged in order from left to right, The alignment sensor is centrally located between the first high speed camera and the second high speed camera；The visual field of first high speed camera Center and the distance of the relative position of the field of view center direction along ng a path of the second high speed camera are L；When top of the wheel of train Jing Guo imaging modules, the alignment sensor senses that the minimum point of wheel is pressed in positioning The position of track corresponding to sensor, the alignment sensor trigger the side of the first high speed camera and the second high speed camera to wheel Taken pictures in face；Now the first high speed camera and the second high speed camera photographed both ends of the wheel parallel to the diameter line of track respectively End points P1, P2 where piece wheel wheel rim photo, and the end points P1 is located at the first high speed camera and taken a picture most Left end, end points P2 are located at the right-hand member that the second high speed camera is taken a picture；Step (2)：Offset distance is detected, the photo photographed is back in a central processing unit and measured by the imaging modules； And detect end points P1 and the second high speed phase on the leftmost side at the wheel edge in the photo that first high speed camera is taken The end points P2 of the rightmost side at the wheel edge in the photo that machine is clapped position, the first high speed camera and the are set in photo respectively The position of two high speed camera field of view center；Using track as X-axis coordinate line, central processing unit is relatively corresponding to the end points P1 of photo Offset distance of the field of view center of relatively corresponding second high speed camera of field of view center, end points P2 of first high speed camera in X-direction Measure；Step (3)：Wheel diameter is calculated, according to the visual field of relatively corresponding first high speed camera of end points P1, end points P2 in photo Center, the field of view center of the second high speed camera calculate the diameter D of wheel in the offset distance of X-direction；End points P1 phases in the X-axis direction Offset distance to the field of view center of corresponding first high speed camera is L1, and end points P2 is in the X-axis direction relatively corresponding second at a high speed The offset distance of the field of view center of camera is L2, then D=L+L1+L2.
- 2. online tramcar wheel diameter measuring method as claimed in claim 1, it is characterised in that：In the step (1), The visual field width of first high speed camera and the second high speed camera is less than or equal to 140mm.
- 3. online tramcar wheel diameter measuring method as claimed in claim 1, it is characterised in that：In the step (3), The end points P1 is located at the left side of the field of view center of the first high speed camera, then offset distance L1 is positive, conversely, then inclined positioned at right side It is negative value away from L1；The point P2 is located at the right side of the field of view center of the second high speed camera, then offset distance L2 is positive, conversely, Positioned at left side, then offset distance L2 is negative value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510657099.7A CN105292178B (en) | 2015-10-13 | 2015-10-13 | Online tramcar wheel diameter measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510657099.7A CN105292178B (en) | 2015-10-13 | 2015-10-13 | Online tramcar wheel diameter measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105292178A CN105292178A (en) | 2016-02-03 |
| CN105292178B true CN105292178B (en) | 2017-12-29 |
Family
ID=55190192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510657099.7A Active CN105292178B (en) | 2015-10-13 | 2015-10-13 | Online tramcar wheel diameter measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105292178B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415985A (en) * | 2017-03-24 | 2017-12-01 | 东莞市诺丽电子科技有限公司 | Train wheel diameter detection method |
| JP7014204B2 (en) * | 2019-06-04 | 2022-02-01 | 株式会社ダイフク | Wheel diameter measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749870A (en) * | 1985-06-26 | 1988-06-07 | Wilhelm Hegenscheidt Gesellschaft Mbh | Method and apparatus for measuring data for calculating the diameter of wheels, especially railroad wheel sets |
| CN101219672A (en) * | 2008-01-16 | 2008-07-16 | 北京交通大学 | Non-contact type dynamic measuring device and method for wheel diameter based on laser and method thereof |
| CN102221331A (en) * | 2011-04-11 | 2011-10-19 | 浙江大学 | Measuring method based on asymmetric binocular stereovision technology |
| CN104520162A (en) * | 2012-08-28 | 2015-04-15 | 西门子公司 | Method and device for determining wheel diameter of vehicle, in particular of rail vehicle |
| CN104848795A (en) * | 2015-03-16 | 2015-08-19 | 东莞市诺丽电子科技有限公司 | On-line wheel diameter measuring method |
-
2015
- 2015-10-13 CN CN201510657099.7A patent/CN105292178B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749870A (en) * | 1985-06-26 | 1988-06-07 | Wilhelm Hegenscheidt Gesellschaft Mbh | Method and apparatus for measuring data for calculating the diameter of wheels, especially railroad wheel sets |
| CN101219672A (en) * | 2008-01-16 | 2008-07-16 | 北京交通大学 | Non-contact type dynamic measuring device and method for wheel diameter based on laser and method thereof |
| CN102221331A (en) * | 2011-04-11 | 2011-10-19 | 浙江大学 | Measuring method based on asymmetric binocular stereovision technology |
| CN104520162A (en) * | 2012-08-28 | 2015-04-15 | 西门子公司 | Method and device for determining wheel diameter of vehicle, in particular of rail vehicle |
| CN104848795A (en) * | 2015-03-16 | 2015-08-19 | 东莞市诺丽电子科技有限公司 | On-line wheel diameter measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105292178A (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105115976B (en) | A kind of rail abrasion defect detecting system and method | |
| CN102901457B (en) | Dynamic measurement method and system for train wheel diameter | |
| CN103630088B (en) | High accuracy tunnel cross-section detection method based on bidifly light belt and device | |
| CN206420439U (en) | Contact net geometric parameter detection means based on machine vision | |
| CN106080662A (en) | A kind of contactless wheelset profile online test method and system | |
| CN205655844U (en) | Robot odometer based on ROS | |
| CN105300295B (en) | A kind of contactless contact net geometric parameter detecting system of portable single track and method | |
| CN112172862A (en) | Multifunctional track detection system | |
| CN103808256B (en) | A kind of non-contact object measurement of in-plane motion device and implementation method | |
| CN104833317A (en) | Medium or heavy steel plate morphology detection system based on controllable symmetrical double-line laser angle and method thereof | |
| CN107401979A (en) | A kind of body oscillating displacement compensation device and method for Contact Line Detection | |
| CN105292178B (en) | Online tramcar wheel diameter measuring method | |
| CN110553663A (en) | Comprehensive track detection method and system based on RFID (radio frequency identification) positioning technology | |
| CN204286406U (en) | Use the portable railway Geometrical Parameter Testing system of MEMS gyro instrument | |
| CN104567783A (en) | System and method for detecting geometric quantity of portable track through MEMS gyroscope | |
| CN107685748A (en) | Train wheel dimensional parameters online test method based on laser displacement sensor | |
| CN104535039B (en) | Crane beam track eccentricity measurement device and method | |
| CN105302135A (en) | Navigation aid lamp light intensity detection vehicle navigation and positioning system based on binocular vision | |
| CN104570044A (en) | Real-time detecting system and method for radioactive materials carried by personnel | |
| CN104848795A (en) | On-line wheel diameter measuring method | |
| CN208887650U (en) | A kind of rail polling car mileage counting device | |
| CN108844465B (en) | Online dynamic measurement device and measurement method for geometric parameters of train wheels | |
| CN108819980A (en) | A kind of device and method of train wheel geometric parameter on-line dynamic measurement | |
| KR20150034860A (en) | Pole position detection system through number recognition | |
| CN105292179A (en) | Rim size detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 10, Wansheng Road, Wanjiang Street, Dongguan, Guangdong 523000 Patentee after: Dongguan Nuoli Technology Co.,Ltd. Address before: 523000 3rd Floor, Wanhongcun Building, Wanjiang Community, Dongguan City, Guangdong Province Patentee before: DONGGUAN NANNAR ELECTRONICS TECHNOLOGY Co.,Ltd. |