CN206832243U - A kind of contact line geometric parameter detection means based on computer vision - Google Patents
A kind of contact line geometric parameter detection means based on computer vision Download PDFInfo
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- CN206832243U CN206832243U CN201720608616.6U CN201720608616U CN206832243U CN 206832243 U CN206832243 U CN 206832243U CN 201720608616 U CN201720608616 U CN 201720608616U CN 206832243 U CN206832243 U CN 206832243U
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- mark post
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- contact line
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Abstract
The utility model discloses a kind of contact line geometric parameter detection means based on computer vision, it includes：Inspection locomotive, calibrating device, image collecting device, image processing server and detection calculation server；Wherein, the calibrating device includes the rigid mark post for being arranged on described first cantilever one end, and be separately positioned on rigid mark post both ends it is upper it is telescopic insulation mark post and under telescopic insulation mark post, and it is upper it is telescopic insulation mark post and under it is telescopic insulate mark post respectively with contact line and rail contact；The detection calculation server is used for the altitude information according to calibrated length image and benchmark calibration parameter acquiring contact line.The device imaging resolution is high, recognition speed is fast, acquired contact line geometric parameter precision is high, the fault detection efficiency of contact net in fast electrified track traffic can be effectively improved, and data basis is provided further to improve the safety and reliability of contact net.
Description
Technical field
It the utility model is related to Rail Detection inspection technical field, more particularly to a kind of contact line based on computer vision
Geometric parameter detection means.
Background technology
Contact net is the main truss of railway electrification project, is the spy to be powered to electric locomotive that downline overhead is set up
The transmission line of electricity of different form.It is made up of contact suspension, support device, positioner, several parts of pillar and basis.Contact Netcom
Often set up along rail overhead "the" shape, the high voltage transmission line of stream is taken for pantograph.The stagger of contact net sets accurate ability
Ensure the service life of pantograph, contact line is accurately fixed；The height of contact line, which is set, accurately just can guarantee that pantograph with connecing
There is appropriate contact force between tactile line.Therefore the various geometric parameters of contact line in often detection contact net are needed, so as to timely
It is adjusted.
It is existing mainly to have to contact line geometry parameter progress detection method：Pendant line adds steel ruler, track forces mensuration；Measurement bar
Add special calculator mensuration；Optical measuring method；Multi-functional contact net detection instrument etc..These detection methods all achieve certain
Effect, but inaccurate measurement, danger height, complex operation, expensive heavy, the Detection task weight intensity of equipment be present in many methods
Greatly, the problems such as poor anti jamming capability.Application publication number is that CN103217111 A Chinese invention patent application discloses a kind of base
In the novel non-contact contact line geometric parameter detection method of image procossing, although its can be used for partly solving tactile line it is several
The shortcomings of what parameter detecting efficiency is low, device very flexible, but the imaging resolution of this method, recognition speed and the degree of accuracy compared with
It is low, the contact line geometric parameter detection of the high-speed electrified track traffic of big interval range can not be applied to.
Utility model content
One of the purpose of this utility model at least that, in view of the above-mentioned problems of the prior art, provide one kind be based on
The contact line geometric parameter detection means of computer vision, its imaging resolution is high, recognition speed is fast, and acquired includes contact
Contact line geometric parameter precision including height and deviation distance is high, can effectively improve and be contacted in fast electrified track traffic
The fault detection efficiency of net, and provide data basis further to improve the safety and reliability of contact net.
To achieve these goals, the technical solution adopted in the utility model includes following aspects.
A kind of contact line geometric parameter detection means based on computer vision, it includes：Inspection locomotive, calibrating device,
Image collecting device, image processing server and detection calculation server；
Wherein, inspection locomotive includes compartment, power-equipment, stretches out compartment and horizontally disposed first cantilever and perpendicular to the
The second cantilever that one cantilever is set, power-equipment are used to make the speed operation of survey monitor overall height in orbit；
The calibrating device includes the rigid mark post for being arranged on described first cantilever one end, and is separately positioned on rigid mark
Upper telescopic insulation mark post telescopic insulation mark post with at bar both ends, and upper telescopic insulation mark post telescopic insulation mark with
Bar respectively with contact line and rail contact；
Described image harvester includes the first high speed camera and the second high speed phase for being separately positioned on the second cantilever both ends
Machine, the first high speed camera are oppositely arranged with upper telescopic insulation mark post, and the second high speed camera telescopic insulation mark post with is relative
Set, be respectively used to obtain the calibrated length image of every telescopic insulation mark post；
Described image processing server is used to carry out center point calibration, Fast Compression and storage to calibrated length image；
The detection calculation server is used for the height according to calibrated length image and benchmark calibration parameter acquiring contact line
Data.
Preferably, the calibrating device is arranged in the plane vertical with contact line and track bearing of trend, rigid mark post
It is arranged on first cantilever one end and can be with being rotated in the plane of the first cantilever vertical centered on the first cantilever.
Preferably, it is described it is it is telescopic insulation mark post using U-type groove structure with contacting linear contact lay, under telescopic insulation mark post
Using U-type groove structure and rail contact, and the scale set on upper and lower telescopic insulation mark post can because contact line height not
Show or hide together.
Preferably, described device further comprises the 3rd high speed camera and angle scale；3rd high speed camera is set
In the second cantilever and the first cantilever intersection, corresponding with angle scale angular image is demarcated for obtaining；The angle scale
It is fixedly installed on rigid mark post, and can be rotated together with rigid mark post around the first cantilever.
Preferably, the angle scale is annular, and sets a radial direction scale every fixed angle from the central point of ring；Angle
Anale settting scale is arranged to rotate as rigid mark post rotates around the first cantilever.
Preferably, the detection calculation server is further used for obtaining the reality of rigid mark post according to demarcation angular image
Rotational angle, and the distance for obtaining contact line and being horizontally offset from wire center is calculated according to the total length of calibrating device.
Preferably, it is provided with shock-absorbing device between first cantilever and the second cantilever.
Preferably, the shooting speed of first high speed camera and the second high speed camera is disposed as the row with inspection locomotive
Speed is sailed into preset ratio.
Preferably, floor light device corresponding with image collecting device is provided with second cantilever.
In summary, by adopting the above-described technical solution, the utility model at least has the advantages that：
High-resolution contact line image is obtained by high-resolution high speed camera, and used in non-contact measurement
Contact calibrating device, the high speed measurement of contact line in high-speed electrified track traffic can be realized, its imaging resolution is high, knows
Other speed is fast, the measurement accuracy of contact line geometric parameter is high, and the device is effectively improved the detection effect of contact net geometric parameter
Rate and detection accuracy, targetedly to improve the fault detect of contact net and maintenance efficiency in fast electrified track traffic,
And further the safety and reliability of contact net provides data basis.
Brief description of the drawings
Fig. 1 is the contact line geometric parameter detection means based on computer vision according to the embodiment of the utility model one
Structural representation；
Fig. 2 is the structural representation of the calibrating device in Fig. 1 device；
Fig. 3 is the contact line geometric parameter detection means based on computer vision according to another embodiment of the utility model
Structural representation；
Fig. 4 is the structural representation of the calibrating device in Fig. 3 device.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the utility model is further elaborated, so that of the present utility model
Object, technical solution and advantage are more clearly understood.It should be appreciated that specific embodiment described herein is only explaining this reality
With new, it is not used to limit the utility model.
Embodiment one
As shown in figure 1, detected according to the contact line geometric parameter based on computer vision of the embodiment of the utility model one
Device includes：Inspection locomotive, calibrating device, image collecting device, image processing server and detection calculation server.
Specifically, inspection locomotive include compartment, power-equipment, stretch out compartment and horizontally disposed first cantilever and perpendicular to
The second cantilever that first cantilever is set, inspection locomotive can be in orbit by power-equipment high-speed cruising, for example, speed is reachable
250 kilometers per hour.
Calibrating device includes being arranged on the rigid mark post of horizontally disposed first cantilever one end and is separately positioned on rigid mark
Bar both ends it is upper it is telescopic insulation mark post and under telescopic insulation mark post, and two it is telescopic insulation mark posts respectively with contact line and
Rail contact.
Image collecting device is arranged on inspection locomotive, including is separately positioned on first high speed camera at the second cantilever both ends
With the second high speed camera, the first high speed camera is oppositely arranged with upper telescopic insulation mark post, and the second high speed camera is telescopic with
Insulation mark post is oppositely arranged, and is respectively used to obtain the calibrated length image of every telescopic insulation mark post.Wherein, high speed camera can
To use resolution ratio 2560*1920 pixels, highest shooting speed is the complementary metal oxide semiconductor CMOS works of 2000 frames/second
Industry camera.Moreover, the shooting speed of high speed camera could be arranged to the travel speed with inspection locomotive into preset ratio, for example,
It is arranged to inspection locomotive and often travels 0.1 meter of unlatching camera shutter once.Preferably, can also be set on pendency straight-arm and high speed
Floor light device corresponding to camera, such as high intensity LED light supplement lamp, to obtain stable intensity of illumination and the uniformity.
Image processing server, survey monitor in-car is arranged on, for the calibrated length image obtained to image collecting device
Carry out center point calibration and Fast Compression, and the calibrated length view data after correction and compression is stored in image processing services
In storage device built in device, for example, forming up to 500T large-capacity high-speed storage device using solid state hard disc array.It can
With by PCIe (Peripheral Component Interconnect Express, periphery component interconnection) standard interfaces with
Image collecting device connects, and can realize 700MB/s writing speed and highest 1700MB/s reading speed.
Calculation server is detected, survey monitor in-car can be arranged on, it passes through high speed interface and image processing services
The storage device connection of device, to obtain calibrated length view data.Calculation server is detected to be used for according to calibrated length picture number
According to the calibrated length image length for obtaining telescopic insulation mark post, and further according to the length of rigid mark post, upper and lower telescopic
The altitude information of the benchmark calibration parameter acquiring contact lines such as the natural spread length of insulation mark post.
Fig. 2 is shown detects dress according to the contact line geometric parameter based on computer vision of the embodiment of the utility model one
Put the structural representation of middle calibrating device.As shown in Fig. 2 calibrating device be arranged on it is vertical with contact line and track bearing of trend
In plane, wherein, and upper telescopic insulation mark post is with contacting linear contact lay, under telescopic insulate mark post and a rail contact, just
Property mark post is arranged on first cantilever one end and can be with being rotated in the plane of the first cantilever vertical centered on the first cantilever.On
Telescopic insulation mark post can use the U-type groove structure similar with pantograph with contacting linear contact lay in structure；Under it is telescopic absolutely
Edge mark post can use the U-type groove structure and rail contact with wheel track, and the quarter set on telescopic insulation mark post in structure
Degree can because of the height of contact line show or hide.Accordingly, the high speed camera in image collecting device respectively with it is telescopic
Insulation mark post is oppositely arranged, and the length in pixels of telescopic insulation mark post is as contact line in acquired calibrated length image
Height it is different and convert, therefore can be by detecting calculation server acquisition calibrated length image length, and further basis
The natural spread length passing ratio conversion of the length of rigid mark post, upper and lower telescopic insulation mark post obtains the height of contact line
Data.
Fig. 3 is the contact line geometric parameter detection means based on computer vision according to another embodiment of the utility model
Structural representation.Fig. 4 shows the structural representation of calibrating device in Fig. 3 embodiment.
On the basis of above-described embodiment, the device may further include the 3rd high speed camera and angle scale.Such as Fig. 3
Shown, the 3rd high speed camera is arranged on the second cantilever and the first cantilever intersection, for obtaining demarcation corresponding with angle scale
Angular image.Angle scale can be fixedly installed on rigid mark post, and can be rotated together with rigid mark post around the first cantilever.
Angle scale could be arranged to annular, and set a radial direction scale every fixed angle (such as 5 degree) from the central point of ring.When connecing
When tactile line is more than or less than half of the interorbital away from (such as 1435 millimeters) with the distance of track in the horizontal direction, angle
Anale settting scale can rotate around the first cantilever with rigid mark post, pass through the demarcation angular image that the 3rd high speed camera obtains, Ke Yitong
Cross trigonometric function and ratiometric conversion obtains the actual rotation angle of rigid mark post, and then can be according to the total length meter of calibrating device
Calculate and obtain the distance that contact line is horizontally offset from wire center.
In above-described embodiment, high-resolution contact line is obtained by high-resolution high speed camera and contacted in calibrating device
Under uncalibrated image, can accurately obtain wiring geometric parameter (for example, height of contact wire, deviation distance etc.).The device is imaged
High resolution, recognition speed are fast, and the acquired contact line geometric parameter precision including contact height and deviation distance is high,
The fault detection efficiency of contact net in fast electrified track traffic can be effectively improved, and further to improve the peace of contact net
Full property and reliability provide data basis.
It is described above, the only detailed description of the utility model embodiment, rather than to limitation of the present utility model.
Those skilled in the technology concerned in the case where not departing from principle and scope of the present utility model, the various replacements made,
Modification and improvement should be included within the scope of protection of the utility model.
Claims (9)
1. a kind of contact line geometric parameter detection means based on computer vision, it is characterised in that described device includes：Inspection
Locomotive, calibrating device, image collecting device, image processing server and detection calculation server；
Wherein, inspection locomotive includes compartment, power-equipment, stretching compartment and horizontally disposed first cantilever and hanged perpendicular to first
The second cantilever that arm is set, power-equipment are used to make the speed operation of survey monitor overall height in orbit；
The calibrating device includes the rigid mark post for being arranged on described first cantilever one end, and is separately positioned on rigid mark post two
Upper telescopic insulation mark post telescopic insulation mark post with at end, and upper telescopic insulation mark post telescopic insulation mark post point with
Not with contact line and rail contact；
Described image harvester includes the first high speed camera and the second high speed camera for being separately positioned on the second cantilever both ends, the
One high speed camera is oppositely arranged with upper telescopic insulation mark post, and the second high speed camera telescopic insulation mark post with is oppositely arranged,
It is respectively used to obtain the calibrated length image of every telescopic insulation mark post；
Described image processing server is used to carry out center point calibration, Fast Compression and storage to calibrated length image；
The detection calculation server is used for the altitude information according to calibrated length image and benchmark calibration parameter acquiring contact line.
2. device according to claim 1, it is characterised in that the calibrating device is arranged on and contact line and track extension
In the vertical plane in direction, rigid mark post be arranged on first cantilever one end and can with the plane of the first cantilever vertical with
Rotated centered on one cantilever.
3. device according to claim 2, it is characterised in that it is described it is it is telescopic insulation mark post using U-type groove structure with
Contact linear contact lay, under telescopic insulation mark post use U-type groove structure and rail contact, and set on the upper and lower telescopic mark post that insulate
The scale put can and show or hide different because of the height of contact line.
4. device according to claim 1, it is characterised in that described device further comprises the 3rd high speed camera and angle
Scale；3rd high speed camera is arranged on the second cantilever and the first cantilever intersection, corresponding with angle scale for obtaining
Demarcate angular image；The angle scale is fixedly installed on rigid mark post, and can be together with rigid mark post around the first cantilever
Rotate.
5. device according to claim 4, it is characterised in that the angle scale is annular, and every from the central point of ring
Every fixed angle, one radial direction scale is set；Angle scale is arranged to rotate as rigid mark post rotates around the first cantilever.
6. device according to claim 5, it is characterised in that the detection calculation server is further used for according to demarcation
Angular image obtains the actual rotation angle of rigid mark post, and is calculated according to the total length of calibrating device and obtain contact line in level
The distance at route deflection center on direction.
7. device according to claim 1, it is characterised in that be provided with shock-absorbing between first cantilever and the second cantilever
Device.
8. device according to claim 1, it is characterised in that the shooting of first high speed camera and the second high speed camera
Speed is disposed as with the travel speed of inspection locomotive into preset ratio.
9. device according to claim 1, it is characterised in that be provided with and image collecting device pair on second cantilever
The floor light device answered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608616.6U CN206832243U (en) | 2017-05-27 | 2017-05-27 | A kind of contact line geometric parameter detection means based on computer vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608616.6U CN206832243U (en) | 2017-05-27 | 2017-05-27 | A kind of contact line geometric parameter detection means based on computer vision |
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| CN206832243U true CN206832243U (en) | 2018-01-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782193A (en) * | 2021-02-02 | 2021-05-11 | 成都国铁电气设备有限公司 | Performance test platform and method for contact net suspension state detection and monitoring device |
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2017
- 2017-05-27 CN CN201720608616.6U patent/CN206832243U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782193A (en) * | 2021-02-02 | 2021-05-11 | 成都国铁电气设备有限公司 | Performance test platform and method for contact net suspension state detection and monitoring device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20200527 |