CN205940468U - Rail limit train spare part height measurement system - Google Patents
Rail limit train spare part height measurement system Download PDFInfo
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- CN205940468U CN205940468U CN201620712923.4U CN201620712923U CN205940468U CN 205940468 U CN205940468 U CN 205940468U CN 201620712923 U CN201620712923 U CN 201620712923U CN 205940468 U CN205940468 U CN 205940468U
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Abstract
The embodiment of the utility model discloses rail limit train spare part height measurement system, include: set up in railway the rail outside and distance the area -array camera of a railway rail predetermined distance, with the controller that the area -array camera electricity is connected, the controller includes: the module is establish to the coordinate system for establish world coordinate system and the corresponding image pixel coordinate system of train image that the true space in train place corresponds respectively, with the coordinate system establish the module and the sub - calculator of pixel coordinate that the area -array camera electricity is connected, and with the high sub - calculator of train spare part that the sub - calculator of pixel coordinate electricity is connected. The technical scheme of the utility model can realize the precision measurement to train spare part height.
Description
Technical field
This utility model is related to train overhaul technical field, more particularly to a kind of rail side Train Parts elevation carrection system
System.
Background technology
With the development of national economy, the flow of personnel and goods is gradually increased, correspondingly, the transport burden of train
With travelling speed also gradually stepping up, and then lead to the probability that Train Parts break down also increasing.Zero, train
The probability that part breaks down increases, and can seriously threaten the safety traffic of train, therefore, Train Parts be checked,
Most important safely to the operation guaranteeing train.
In order to ensure the operation safety of train, maintainer typically requires and carries out all kinds of detections to train, wherein, train zero
The elevation carrection of part (such as sand pipe, pilot, sweep stone implement and hitch) is the important component part of train detection, if this
The setting height(from bottom) standard against regulation at a little train zero positions；Or in train life-time service, Train Parts highly occur
Large change is it is easy to cause the derailing of train or the major accident such as topple.
The height detection scheme of existing Train Parts, typically inside train base track, arranges Laser emission
The height sensor part such as device and laser pickoff, then passes through generating laser and projects laser to Train Parts, according to laser
Launch to time of Train Parts and laser the height of the Time Calculation Train Parts being back to described laser pickoff, so
Determining whether whether the height of Train Parts exceeds preset height scope afterwards, if exceeding preset height scope, judging key
The setting height(from bottom) at position transfinites.
But in this mode, need to be positioned over inside the track of train bottom by height detection device, it is right just to enable
The detection of Train Parts, however, Train Parts are easily overlapped in train short transverse, leads to from generating laser
The laser sending is blocked by the Train Parts of bottom it is difficult to detect the Train Parts of upper layer time, even if there is a small amount of sending out
The laser-bounce being mapped to the Train Parts of upper layer time returns laser pickoff it is also difficult to ensure the essence to parts height detection
Degree；Secondly, height detection device is arranged inside the track of train bottom, and height detection device is easily and zero of train bottom
Part comes in contact, or even because mutual collision is damaged.
Utility model content
A kind of rail side Train Parts altitude measurement system is provided, to solve prior art in this utility model embodiment
In Train Parts height detection scheme Train Parts height detection precision is difficult to ensure that, and be susceptible to damaged in collision
Problem.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme：
This utility model provides a kind of rail side Train Parts altitude measurement system, and this system includes：
It is arranged at railway and prop up the area array cameras propping up rail preset distance outside rail and away from described railway, for absorbing train figure
Picture；
The controller electrically connecting with described area array cameras, described controller includes：
Establishment of coordinate system module, for setting up the corresponding world coordinate system of train place real space and described train respectively
Image corresponding image pixel coordinates system, determines that the coordinate pair between described world coordinate system and described image pixel coordinate system should
Parameter；
The sub- computer of pixel coordinate electrically connecting with described establishment of coordinate system module and described area array cameras, for according to institute
State image pixel coordinates system, calculate the pixel coordinate that Train Parts and railway in described train image prop up rail respectively；
The highly sub- computer of Train Parts that computer with described pixel coordinate electrically connects, for according to described train
Parts and described railway prop up the pixel coordinate of rail and described coordinate pair answers parameter, calculate zero, train described in real space
Part and described railway prop up distance between rail, as the height of described Train Parts.
Preferably, described rail side Train Parts altitude measurement system also includes：
The the first light filling source electrically connecting with described controller, described first irradiation area in light filling source and becoming of area array cameras
As region overlaps and covers described imaging region.
Preferably, described rail side Train Parts altitude measurement system also includes：
It is fixed on the magnetic steel component that tests the speed that described railway props up rail medial surface, for detecting train translational speed；
Described controller also includes the sub- computer of train traveling time electrically connecting with the described magnetic steel component that tests the speed, for root
According to described train translational speed and described test the speed the distance between magnetic steel component and described area array cameras, calculate described train and arrive
Reach the traveling time of the imaging region of described area array cameras；
The sub- computer of described train traveling time is also electrically connected with described area array cameras, for being opened according to described traveling time
Move described area array cameras to start to take pictures；
Preferably, described controller also includes：
The train translational speed comparator electrically connecting with the described magnetic steel component that tests the speed, for judging the mobile speed of described train
Whether degree is less than or equal to preset vehicle speed；
The film speed selector being electrically connected with described train translational speed comparator and described area array cameras respectively, is used for
Select the film speed corresponding with train speed that described train is taken pictures.
Preferably, described rail side Train Parts altitude measurement system also includes：
It is arranged at described railway and prop up the line-scan digital camera propping up rail preset distance outside rail and away from described railway, for shooting linear array
Train image；
Described controller also includes：The pixel getter electrically connecting with described line-scan digital camera, for obtaining described linear array
Train Parts described in car image to described railway props up the pixel quantity between rail；Electrically connect with described pixel getter
Length calculator, props up rail and is located for calculating Train Parts described in the corresponding real space of each pixel and described railway
Physical length in vertical plane；
The highly sub- computer of described Train Parts is also electrically connected with described length calculator, is additionally operable to according to described pixel
Point quantity and described physical length, calculate described Train Parts to described railway and prop up distance between rail, as described train zero
The height of part.
Preferably, described rail side Train Parts altitude measurement system also includes：
The the second light filling source electrically connecting with described controller, the irradiation area in described second light filling source and described line-scan digital camera
Imaging region overlap and cover the imaging region of described line-scan digital camera；Wherein,
The width of the linear array train image of described line-scan digital camera is more than or equal to the train operation distance of unit shooting time.
Preferably, described area array cameras include：
Prop up the single area array cameras of rail preset distance away from described railway, wherein, described single area array cameras are provided with level
Tumbler.
Preferably, described area array cameras include：
Away from described railway prop up rail preset distance and along described railway prop up rail length direction arrangement area array cameras array, institute
The optical axis stating each area array cameras in multiple area array cameras arrays props up rail perpendicular to described railway.
Preferably, in the Train Parts altitude measurement system of described rail side, adjacent surface battle array phase in described area array cameras array
The shooting interval time of machine is equal to the ratio of distance and train translational speed between described adjacent area array cameras.
Preferably, described rail side Train Parts altitude measurement system also includes：
Prop up rail length direction along railway in the imaging region of described area array cameras and the optical axis direction of area array cameras moves
Dynamic scaling board；
Described area array cameras are additionally operable to gather several scaling board images in described scaling board moving process；
Described controller, is additionally operable to the pixel according to multiple angle points on several scaling boards described in scaling board Image Acquisition described
Coordinate, and parameter is answered according to the described coordinate pair of pixel coordinate calculating of the plurality of angle point.
The beneficial effects of the utility model include：Area array cameras are arranged at railway and prop up outside rail, with respect in background technology
The height detection device mentioned is positioned over the Train Parts elevation carrection scheme inside the track of train bottom, area array cameras energy
Enough train image is absorbed with the angle close to level, in the height direction, the Train Parts image in train image will not phase
It is mutually overlapping that such that it is able to be accurately detected the image of each Train Parts, and area array cameras are arranged at railway and prop up outside rail,
It is difficult to touch with train bottom, the probability of damage of area array cameras can be reduced.By absorbing train image, set up truly empty
Between world coordinate system and train image image pixel coordinates system, and determine that coordinate pair between the two answers parameter, Neng Gougen
Prop up the pixel coordinate of rail according to Train Parts in image pixel coordinates system and railway, and then calculate Train Parts in real space
Prop up the distance of rail with railway, and then accurately detect Train Parts height, because the precision of image detection is higher, therefore this is
System is capable of the accurate measurement to Train Parts height.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of application scenarios schematic diagram that Fig. 1 provides for this utility model embodiment；
A kind of structural representation of rail side Train Parts altitude measurement system that Fig. 2 provides for this utility model embodiment
Figure；
A kind of structural representation of rail side Train Parts altitude measurement system that Fig. 3 provides for this utility model embodiment
Figure；
A kind of structural representation of rail side Train Parts altitude measurement system that Fig. 4 provides for this utility model embodiment
Figure；
A kind of structural representation of rail side Train Parts altitude measurement system that Fig. 5 provides for this utility model embodiment
Figure；
A kind of structural representation of rail side Train Parts altitude measurement system that Fig. 6 provides for this utility model embodiment
Figure.
In Fig. 1 to Fig. 6, each structure is as follows with the corresponding relation of reference：
101- area array cameras, 102- controller, 1021- establishment of coordinate system module, the sub- computer of 1022- pixel coordinate,
The highly sub- computer of 1023- Train Parts, the sub- computer of 1024- train traveling time, 1025- train translational speed compare
Device, 1026- film speed selector, 1027- pixel getter, 1028- length calculator, 103- the first light filling source, 104- survey
Fast magnetic steel component, 105- line-scan digital camera, 106- the second light filling source, 107- scaling board.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in this utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in this utility model embodiment is clearly and completely described it is clear that
Described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on this utility model
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of not making creative work
Example, all should belong to the scope of this utility model protection.
Refer to Fig. 1, a kind of application scenarios schematic diagram providing for this utility model embodiment, as shown in figure 1, this practicality
The application scenarios that new embodiment provides at least include：
It is arranged at railway and prop up the area array cameras 101 propping up rail preset distance outside rail and away from railway, this area array cameras 101
Shooting direction towards train, for absorbing train image；
Then prop up, according to the Train Parts in train image and railway, the coordinate that rail is fastened in image pixel coordinates, calculate
In the corresponding world coordinate system of real space, Train Parts and railway prop up distance between rail, as the height of Train Parts.
Wherein, the image-forming principle of area array cameras 101 is lens imaging principle, and lens imaging principle specifically refers to Fig. 1, tool
Body is：The light sending in the object at object plane (Train Parts and railway the prop up rail place vertical plane) place of object distance u is through lens
Refraction, converges to focus F at focal length f, and the image planes (train image place plane) being ultimately imaged to image distance v.Wherein, thing
It is the distance with respect to optical center of lens away from, focal length and image distance.
Refer to Fig. 2 and Fig. 3, the knot of the rail side Train Parts altitude measurement system providing for this utility model embodiment
Structure schematic diagram, as shown in Figures 2 and 3, this rail side Train Parts altitude measurement system includes：
It is arranged at railway and prop up the area array cameras 101 propping up rail preset distance outside rail and away from railway, for absorbing train figure
Picture；
Area array cameras 101 are arranged at railway and prop up outside rail and prop up rail preset distance away from railway, mention compared to background technology
The height detection device being arranged inside the track of train bottom, area array cameras 101 can with close to level angle picked-up
Train image, in train image, Train Parts image in train short transverse will not overlapped such that it is able to from row
Structure that is clear in car image, being accurately detected different Train Parts.Additionally, area array cameras 101 are arranged at railway props up rail
Outside, area array cameras 101 are difficult to touch with train bottom, can reduce the probability of damage of area array cameras 101.Wherein, arrange
Car parts include sweeping the parts such as stone implement, sand pipe, pilot and hitch.
As shown in Fig. 2 the rail side Train Parts height detecting system that the present embodiment provides also includes and area array cameras 101
The controller 102 of electrical connection, specifically refers to Fig. 3, this controller 102 includes：
Establishment of coordinate system module 1021, for setting up the corresponding world coordinate system of train place real space and train respectively
Image corresponding image pixel coordinates system, determines that the coordinate pair between world coordinate system and image pixel coordinates system answers parameter；
World coordinate system is a three-dimensional system of coordinate, and with space, physical length is coordinate system unit, for describing train
Parts, railway prop up position in real space for the object such as rail and area array cameras 101.Image pixel coordinates system is a two dimension
Coordinate system, with pixel quantity for coordinate system unit, for describing Train Parts, railway props up rail and the thing such as area array cameras 101
Position in train image for the body.Wherein, train image images in the image of image planes position for area array cameras 101.
Establishment of coordinate system module 1021 is by setting up the corresponding world coordinate system of train place real space and train image
Corresponding image pixel coordinates system, can determine that Train Parts and railway prop up coordinate position in real space for the structures such as rail
And the coordinate position in train image.Should be joined by determining the coordinate pair between world coordinate system and image pixel coordinates system
Number, can prop up coordinate bit in image pixel coordinates system for the rail according to Train Parts and railway in the train image absorbed
Put, calculate that in real space, Train Parts and railway prop up coordinate position in world coordinate system for the rail.
The sub- computer of pixel coordinate 1022 being electrically connected with described establishment of coordinate system module 1021 and area array cameras 101, is used
In the pixel coordinate according to image pixel coordinates system, calculating Train Parts and railway in train image respectively and propping up rail；
The sub- computer of pixel coordinate 1022 obtains Train Parts by image pixel coordinates system and railway props up the pixel of rail
Coordinate, can accurately determine that Train Parts and railway prop up picture position in train image for the rail, conveniently to Train Parts
Demarcated, and then accurately determined that Train Parts and railway prop up rail according to the picture position that Train Parts and railway prop up rail
Physical location.
The highly sub- computer 1023 of the Train Parts that computer 1022 sub- with pixel coordinate electrically connects, for according to train
Parts and railway prop up the pixel coordinate of rail and coordinate pair answers parameter, calculate Train Parts and railway in real space and prop up rail
Between distance, as the height of Train Parts.
Parameter and Train Parts and railway is answered to prop up pixel respectively in train image for the rail and sit according to above-mentioned coordinate pair
Mark, the highly sub- computer 1023 of Train Parts Accurate Estimation Train Parts and railway can prop up reality in real space for the rail
Border position, and determine that in real space, Train Parts and railway prop up rail according to the physical location that Train Parts and railway prop up rail
Between distance such that it is able to accurately determine the true altitude of Train Parts.
The rail side Train Parts altitude measurement system that this utility model embodiment provides, area array cameras 101 are arranged at ferrum
Road is propped up outside rail and is propped up rail certain distance away from railway, is positioned over train bottom with respect to the height detection device mentioned in background technology
Train Parts elevation carrection scheme inside the track in portion, area array cameras 101 can absorb train with the angle close to level
Image, in the height direction, Train Parts image in train image will not overlapped such that it is able to be accurately detected each
The image of individual Train Parts, and area array cameras 101 are arranged at railway and prop up outside rail, are difficult to touch with train bottom,
The probability of damage of area array cameras 101 can be reduced.Controller 102 absorbs train image by area array cameras 101, sets up truly empty
Between world coordinate system and train image image pixel coordinates system, and determine that coordinate pair between the two answers parameter, Neng Gougen
Prop up the pixel coordinate of rail according to Train Parts in image pixel coordinates system and railway, and then calculate Train Parts in real space
Prop up the distance of rail with railway, accurately detect Train Parts height further.Because the precision of image detection is higher, therefore originally
System is capable of the Accurate Calibration to Train Parts height.
Refer to Fig. 2, as a kind of preferred embodiment of this utility model, rail side Train Parts altitude measurement system removes
Also include outside structure described in foregoing embodiments：
The the first light filling source 103 electrically connecting with controller 102, the irradiation area in the first light filling source 103 and area array cameras 101
Imaging region overlap and cover described imaging region.
By arranging the first light filling source 103, the direction of illumination in the first light filling source 103 and the shooting direction of area array cameras 101
Identical, light filling process can be carried out for the imaging region of the train captured by area array cameras 101, so that area array cameras 101
Get the train image of higher resolution, reduce that to obscure the image resolution ratio leading to not high because of images dim, to train image
Upper parts and railway prop up the situation that the structures such as rail are difficult to accurately differentiate.And the irradiation area in the first light filling source 103 and face battle array
The imaging region of camera 101 overlaps, and improves the overall brightness of the train image that area array cameras 101 get.
Wherein, the direction of illumination in the first light filling source 103 and the shooting direction of area array cameras 101 have certain angle.Due to
Train Parts size is different with position, so in the shooting direction with the first light filling source 103 direction of illumination with certain angle
Observing, being able to observe that the shape of light tortuous change with Train surface parts depth in the first light filling source 103, thus adopting
Collect train 3-D view.By this train 3-D view, more clearly from can observe train composition, it is more accurate to get
Train Parts height.
When using area array cameras 101 detection Train Parts height, train is likely to be at running status, now, if face
Array camera 101 shoots not in time, easily causes the situation of Train Parts missing inspection, in order to solve this problem, in conjunction with Fig. 2 and Fig. 4
Rail side Train Parts altitude measurement system that is shown, providing as a kind of preferred embodiment of this utility model, the present embodiment
Also include in addition to the structure that above-described embodiment is mentioned：
It is fixed on the magnetic steel component 104 that tests the speed that railway props up rail medial surface, for detecting train translational speed.
The magnetic steel component 104 that tests the speed be a kind of have magnetic equipment, when train process this test the speed magnetic steel component 104 when, by
In train wheel cutting magnetic line, the magnetic steel component 104 that tests the speed can produce the signal of telecommunication, can determine that row by detecting this signal of telecommunication
This magnetic steel component 104 that tests the speed of car wheel process, generally, the magnetic steel component 104 that tests the speed includes two along rail length setting
Individual magnet steel, spacing between this two magnet steel it is known that pass through the time of this two magnet steel according to train wheel, you can calculates train
Translational speed.
In the present embodiment, as shown in figure 4, the train that controller 102 also includes electrically connecting with the magnetic steel component 104 that tests the speed moves
Dynamic chronon computer 1024, for according to train translational speed and test the speed between magnetic steel component 104 and area array cameras 101
Distance, calculates the traveling time that train reaches the imaging region of area array cameras 101.
The sub- computer of train traveling time 1024 is also electrically connected with area array cameras 101, for starting face according to traveling time
Array camera 101 starts to take pictures.
According to distance and the train translational speed between magnetic steel component 104 and the shooting area of area array cameras 101 of testing the speed, count
Calculate the traveling time that train reaches the shooting area of area array cameras 101, you can select to start area array cameras according to this traveling time
101 speed reduces the missing inspection of Train Parts with opportunity such that it is able to control area array cameras 101 to obtain train image in time
Situation.
Further, since the definition of the train image of area array cameras 101 picked-up is relevant with train speed, when train speed is big
When preset vehicle speed, the train image that area array cameras 101 get is more fuzzy, in order to solve this problem, as shown in figure 5, control
Device 102 processed also includes：
The train translational speed comparator 1025 electrically connecting with the magnetic steel component 104 that tests the speed, for judging the mobile speed of train
Whether degree is less than or equal to preset vehicle speed；
Whether preset vehicle speed is less than or equal to by the translational speed judging train, can be less than in the translational speed of train
Or when being equal to preset vehicle speed, train is taken pictures, to obtain the train image of higher resolution.
The film speed selector 1026 electrically connecting with train translational speed comparator 1025 and area array cameras 101 respectively,
Film speed for selecting corresponding with train speed is taken pictures to train.
When the translational speed of train is less than or equal to preset vehicle speed, selected and train by film speed selector 1026
The corresponding camera exposure speed of speed is taken pictures to train, can get the train image of fine definition it is ensured that absorbing
To train image quality such that it is able to exactly rail image pair be propped up by the Train Parts image in train image and railway
The height of Train Parts is detected.
As another preferred embodiment of this utility model, refer to Fig. 2 and Fig. 5, as shown in Fig. 2 zero, rail side train
Part altitude measurement system also includes：
It is arranged at railway and prop up the line-scan digital camera 105 propping up rail preset distance outside rail and away from railway, for shooting linear array car
Image.
Line-scan digital camera 105 is the camera using linear array images, can get the linear array train figure of the two dimension in " line " shape
Picture, by obtaining the linear array train image of " line " shape of train, i.e. detection is propped up including rail Bao Kuo Train Parts and railway
" line " shape image, it is possible to increase accuracy of detection simultaneously excludes the interference of other structures.
In addition, as shown in Figure 2 and Figure 5, the rail side Train Parts altitude measurement system that this utility model embodiment provides
Also include：
The the second light filling source 106 electrically connecting with controller 102, the irradiation area in the second light filling source 106 and line-scan digital camera 105
Imaging region overlap and cover the imaging region of line-scan digital camera 105；Wherein, the linear array train figure that line-scan digital camera 105 shoots
The width of picture is more than or equal to the train operation distance of unit shooting time.
The irradiation area in the second light filling source 106 covers the imaging region of line-scan digital camera 105, can be line-scan digital camera 105 institute
The imaging region shooting carries out light filling, so that line-scan digital camera 105 gets the train image of fine definition, reduces because of image
Dim to specified image resolution ratio not high, parts in linear array train image and railway propped up with the structures such as rail be difficult to accurately point
Situation about distinguishing.Wherein, unit shooting time is to obtain a train image to terminate from starting to shoot to shooting for area array cameras
Shooting time.
As shown in figure 5, controller 102 also includes：The pixel getter 1027 electrically connecting with line-scan digital camera 105, is used for obtaining
Train Parts to railway in train image is taken to prop up pixel quantity between rail.
Train image is made up of substantial amounts of pixel, especially in the two-dimentional linear array car image that line-scan digital camera 105 shoots,
Often there is K pixel of number in the length direction of linear array train image, and width often only has several pixels,
Facilitate pixel getter 1027 to obtain Train Parts to railway in train image and prop up the pixel quantity between rail.By detection
This pixel quantity can obtain Train Parts and railway in train image and prop up distance between rail.
The length calculator 1028 electrically connecting with pixel getter 1027, for calculating the corresponding true sky of each pixel
Between middle Train Parts and railway prop up the physical length in the vertical plane of rail place.
The air line distance that area array cameras 101 and Train Parts in real space and railway prop up rail place vertical plane is constant,
Therefore, the physical length of each pixel this vertical plane corresponding is constant, by calculating zero, the corresponding train of each pixel
Part and railway prop up the physical length in the vertical plane of rail place, can accurately calculate the reality that Train Parts to railway props up rail further
Border distance.
The highly sub- computer 1023 of Train Parts is also electrically connected with length calculator 1028, is additionally operable to according to pixel number
Amount and physical length, calculate Train Parts and railway props up distance between rail, as the height of Train Parts.
Prop up pixel quantity and the corresponding physical length of each pixel between rail by calculating Train Parts and railway
Product, obtain the actual range that Train Parts to railway props up rail, can easily get the height of Train Parts.
There is more piece compartment in train, correspondingly, train has substantial amounts of component structural, when to train overhaul, such as enters
Storehouse is overhauled it is difficult to carry out elevation carrection to all component structurals, in order to solve this problem, as a kind of preferred embodiment,
Area array cameras 101 include：Prop up the single area array cameras of rail preset distance away from railway, this single area array cameras is provided with and horizontally rotates
Device (in figure is unmarked), can horizontally rotate；
Single area array cameras prop up rail preset distance away from railway, and the visual field of area array cameras 101 is more open, the train figure of picked-up
Train Parts and railway as comprising needs detection prop up rail；Area array cameras 101 horizontally rotate, and can prop up rail along railway long
Degree direction is with different angle shot train image, and then realizes railway is propped up with the height of different Train Parts on rail length direction
Detection.
Or, area array cameras 101 include away from railway prop up rail preset distance and along railway prop up the section of track row area array cameras battle array
Row, in this area array cameras array, the optical axis of each area array cameras props up rail perpendicular to railway.
Area array cameras array props up section of track row along railway, and props up rail shooting train image perpendicular to railway, can be with for the moment
Between get the image of the substantial amounts of Train Parts of train various location, thus realizing the quick inspection to Train Parts height
Survey.
In addition, the rail that this utility model embodiment provides is when Train Parts altitude measurement system is arranged on train rail,
In measurement process, train may be currently running, and single area array cameras 101 prop up rail perpendicular to railway and shoot it may only be possible to reach
Photograph and once include Train Parts and railway props up the train image of rail, therefore pass through to arrange area array cameras array, control
The shooting interval time of adjacent area array cameras 101, so that zero, train in the train image of adjacent area array cameras 101 shooting
Part and railway prop up the position difference of rail less it is preferable that in area array cameras array adjacent area array cameras 101 the shooting interval time
Ratio equal to distance between adjacent area array cameras 101 and train translational speed.
By arranging distance and train between the shooting interval time of adjacent area array cameras 101 and adjacent area array cameras 101
The ratio of translational speed is identical, then in the train image that area array cameras 101 shoot every time, Train Parts and railway prop up the position of rail
Put difference less, by comparing several train image that this adjacent area array cameras 101 shoots, you can according to several train image essences
Really measure Train Parts and railway props up the pixel coordinate of rail, thus accurately calculate Train Parts and railway in real space propping up
Distance between rail, i.e. the height of Train Parts.
In order to realize coordinate between train image corresponding image pixel coordinates system and the corresponding world coordinate system of real space
Conversion, need the coordinate pair obtaining between each coordinate system to answer parameter.In order to accurately obtain the coordinate between each coordinate system
Corresponding parameter, as a kind of preferred embodiment of this utility model, as shown in fig. 6, rail side Train Parts altitude measurement system
Also include：
Prop up rail length direction and the optical axis direction of area array cameras 101 along railway in the imaging region of area array cameras 101
The scaling board 107 of movement.Area array cameras 101 are additionally operable to gather several scaling board images in scaling board 107 moving process.
In the imaging region of area array cameras 101, scaling board 107 props up rail length direction and area array cameras 101 along railway
Optical axis direction move, then in the scaling board image getting, the coordinate of scaling board 107 same position is different, by same
The different coordinate in position, that is, can determine that the coordinate pair between each coordinate system answers parameter.Wherein, this scaling board 107 can be
Black and white gridiron pattern.
Controller 102, is additionally operable to the pixel coordinate according to multiple angle points on several scaling board Image Acquisition scaling boards 107；
And parameter is answered according to the described coordinate pair of pixel coordinate calculating of multiple angle points.
By the pixel coordinate of multiple angle points, obtain coordinate pair and answer parameter, when area array cameras 101 obtain train image,
Parameter is answered to realize in train image and real space according to this coordinate pair, Train Parts and railway prop up the conversion of rail coordinate, enter
And it is accurately obtained the distance that Train Parts and railway in real space prop up rail.Wherein, this coordinate pair answers parameter mainly to include
The intrinsic parameter of area array cameras 101, specifically includes：X in each pixel of image pixel coordinates system corresponding image physical coordinates system
Coordinate in image pixel coordinates system for the coordinate origin of the physical size of axle and Y-axis and image physical coordinates system.
Each embodiment in this specification is all described by the way of going forward one by one, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiments.
Above this utility model embodiment, does not constitute the restriction to this utility model protection domain.Any this
Modification, equivalent and improvement of being made within the spirit of utility model and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. a kind of rail side Train Parts altitude measurement system is it is characterised in that include：
It is arranged at railway and prop up the area array cameras propping up rail preset distance outside rail and away from described railway；
The controller electrically connecting with described area array cameras, described controller includes：
Establishment of coordinate system module, corresponding with train image for setting up the corresponding world coordinate system of train place real space respectively
Image pixel coordinates system；
The sub- computer of pixel coordinate electrically connecting with described establishment of coordinate system module and described area array cameras；And
The highly sub- computer of Train Parts that computer with described pixel coordinate electrically connects.
2. rail side according to claim 1 Train Parts altitude measurement system is it is characterised in that also include：
The the first light filling source electrically connecting with described controller, the irradiation area in described first light filling source and the imaging area of area array cameras
Domain overlaps and covers described imaging region.
3. rail side according to claim 1 Train Parts altitude measurement system is it is characterised in that also include：
It is fixed on the magnetic steel component that tests the speed that described railway props up rail medial surface；
Described controller also includes the sub- computer of train traveling time electrically connecting with the described magnetic steel component that tests the speed；
The sub- computer of described train traveling time is also electrically connected with described area array cameras.
4. rail side according to claim 3 Train Parts altitude measurement system is it is characterised in that described controller also wraps
Include：
The train translational speed comparator electrically connecting with the described magnetic steel component that tests the speed；
The film speed selector electrically connecting with described train translational speed comparator and described area array cameras respectively.
5. rail side according to claim 1 Train Parts altitude measurement system is it is characterised in that also include：
It is arranged at described railway and prop up the line-scan digital camera propping up rail preset distance outside rail and away from described railway, for shooting linear array
Car image；
Described controller also includes：The pixel getter electrically connecting with described line-scan digital camera, for obtaining described linear array train figure
Described in picture, Train Parts to described railway props up the pixel quantity between rail；The length electrically connecting with described pixel getter
Computer, props up rail and is located vertically for calculating Train Parts described in the corresponding real space of each pixel and described railway
Physical length in face；
The highly sub- computer of described Train Parts is also electrically connected with described length calculator, is additionally operable to according to described pixel number
Amount and described physical length, calculate described Train Parts to described railway and prop up distance between rail, as described Train Parts
Height.
6. rail side according to claim 5 Train Parts altitude measurement system is it is characterised in that also include：
The the second light filling source electrically connecting with described controller, described second irradiation area in light filling source and becoming of described line-scan digital camera
As region overlaps and covers the imaging region of described line-scan digital camera；Wherein,
The width of the linear array train image of described line-scan digital camera is more than or equal to the train operation distance of unit shooting time.
7. rail side according to claim 1 Train Parts altitude measurement system is it is characterised in that described area array cameras bag
Include：
Prop up the single area array cameras of rail preset distance away from described railway, wherein, described single area array cameras are provided with and horizontally rotate
Device.
8. rail side according to claim 1 Train Parts altitude measurement system is it is characterised in that described area array cameras bag
Include：
Away from described railway prop up rail preset distance and along described railway prop up rail length direction arrangement area array cameras array, described face
In array camera array, the optical axis of each area array cameras props up rail perpendicular to described railway.
9. rail side according to claim 8 Train Parts altitude measurement system it is characterised in that
In described area array cameras array, the shooting interval time of adjacent area array cameras is equal to distance between described adjacent area array cameras
Ratio with train translational speed.
10. rail side according to claim 1 Train Parts altitude measurement system is it is characterised in that also include：
Prop up the optical axis direction movement of rail length direction and area array cameras along railway in the imaging region of described area array cameras
Scaling board；
Described area array cameras are additionally operable to gather several scaling board images in described scaling board moving process；
Described controller, is additionally operable to the pixel according to multiple angle points on several scaling boards described in scaling board Image Acquisition described and sits
Mark, and parameter is answered according to the described coordinate pair of pixel coordinate calculating of the plurality of angle point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620712923.4U CN205940468U (en) | 2016-07-07 | 2016-07-07 | Rail limit train spare part height measurement system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620712923.4U CN205940468U (en) | 2016-07-07 | 2016-07-07 | Rail limit train spare part height measurement system |
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| CN205940468U true CN205940468U (en) | 2017-02-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588732A (en) * | 2016-07-07 | 2018-01-16 | 苏州华兴致远电子科技有限公司 | Rail side Train Parts height measurement method and system |
| CN107621229A (en) * | 2017-10-23 | 2018-01-23 | 福州大学 | Real-time railroad track width measure system and method based on face battle array black and white camera |
| CN110349220A (en) * | 2019-07-12 | 2019-10-18 | 刘涛 | It is a kind of for measuring the high-precision calibration gridiron pattern of train wheel |
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2016
- 2016-07-07 CN CN201620712923.4U patent/CN205940468U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588732A (en) * | 2016-07-07 | 2018-01-16 | 苏州华兴致远电子科技有限公司 | Rail side Train Parts height measurement method and system |
| CN107588732B (en) * | 2016-07-07 | 2024-03-26 | 苏州华兴致远电子科技有限公司 | Rail side train part height measurement method and system |
| CN107621229A (en) * | 2017-10-23 | 2018-01-23 | 福州大学 | Real-time railroad track width measure system and method based on face battle array black and white camera |
| CN110349220A (en) * | 2019-07-12 | 2019-10-18 | 刘涛 | It is a kind of for measuring the high-precision calibration gridiron pattern of train wheel |
| CN110349220B (en) * | 2019-07-12 | 2021-09-07 | 山东华歌建筑设计有限公司 | High-precision calibration checkerboard for measuring train wheels |
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