CN208780140U - A kind of laser image method wave contant net measuring instrument - Google Patents
A kind of laser image method wave contant net measuring instrument Download PDFInfo
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- CN208780140U CN208780140U CN201821562000.0U CN201821562000U CN208780140U CN 208780140 U CN208780140 U CN 208780140U CN 201821562000 U CN201821562000 U CN 201821562000U CN 208780140 U CN208780140 U CN 208780140U
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- laser
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- measurement bay
- traveling platform
- measuring instrument
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Abstract
The utility model discloses a kind of laser image method wave contant net measuring instrument, it includes: traveling platform, shaft encoder, support frame, measurement bay, laser, 3D camera and data processor.Laser and 3D camera are fixed on measurement bay, laser transmitting fan laser face upward, and with traveling platform direction of travel axial symmetry；The camera lens of 3D camera upward and is biased to laser, 3D viewing field of camera also with traveling platform direction of travel axial symmetry；Shaft encoder measures traveling distance, and controls laser device laser output and data processor acquisition storage processing data.3D camera automatically identifies laser facula, and the geometric parameter of contact net is obtained with camera image location of pixels and the polar angular relationship of camera body.The equipment operation is easy, safe and reliable, accurately can continuously measure the geometric parameter of a plurality of railway contact line.
Description
Technical field
The utility model relates to railway contact line parameter measuring technical field, specifically a kind of contact net leads high, stagger
The measuring instrument of equal geometric parameters detection and diagnosis.
Background technique
Currently, railway contact line geometric parameter mainly uses static measurement, mainly there are insulating bar hand dipping and Laser Measuring
Away from method.Using the above method measuring instrument can only one position of one-shot measurement, time-consuming, efficiency for the measurement of this measuring instrument
It is low, and geometry parameter information is required to be manually entered with railway position, is unfavorable for the management of data.For the above technological deficiency,
A kind of laser image method wave contant net measuring instrument is researched and developed, it can be achieved that continuous measurement, high-efficient, measurement data can automatically save and be convenient for
Management.
Utility model content
In order to improve railway contact line geometric parameter measurement efficiency, overcome in existing measurement method that time-consuming, low efficiency, and
Geometry parameter information is required to the shortcomings that being manually entered, being unfavorable for data management with railway position.The present utility model provides
It is a kind of easy to operate, safe and reliable, it accurately can continuously measure laser image method wave contant net measuring instrument.
The present utility model specifically includes that traveling platform, shaft encoder, support frame, measurement bay, laser, 3D camera
And data processor.The traveling platform, support frame and measurement bay form a rigid structure, which makes during measurement bay is located at
Between, and it is parallel with traveling platform direction of travel axis；The laser and 3D camera are fixed on measurement bay, laser transmitting fan
Shape laser faces upward, and with traveling platform direction of travel axial symmetry；The camera lens of the 3D camera upward and is biased to laser, 3D phase
Machine visual field also with traveling platform direction of travel axial symmetry；The shaft encoder measures traveling distance, and it is defeated to control laser device laser
Storage processing data are acquired with data processor out.
Firstly, traveling plateau levels are placed on rail, after each component is fixed by structure chart installation, power on；Its
Secondary log-on data processor special-purpose software, it is artificial to push traveling platform, axis coding into acquisition data acquisition storage processing status
Device triggers laser and issues fan laser, and 3D camera continuously intensively acquires image and data, identifies laser facula；Finally, complete
After image and data acquisition, data processing is carried out, generates report, that completes railway contact line leads the geometric parameters such as height, stagger
Number calculates measurement work.
The present utility model designs sampling gap according to shaft encoder traveling distance, obtains intensive sampling gap,
Realizing Image Acquisition can recognize that multiple laser faculas, and it is several to show that contact net leads height, stagger etc. by back-end data processing
What parameter.Compared with prior art, advantage of the present utility model is: (1) can measure the several of a plurality of contact line simultaneously
What parameter；(2) it not only can continuously measure, but also can be with data Coutinuous store.
Detailed description of the invention
Fig. 1, Fig. 2, Fig. 3 are respectively that structure of the invention is faced, side view and schematic top plan view, Fig. 4 are traveling platform structure
Schematic diagram.
Specific embodiment
Specific embodiments of the utility model will be further explained with reference to the accompanying drawing.
The utility model is mainly by traveling platform 1, shaft encoder 2, support frame 3, measurement bay 4, laser 5,6 and of 3D camera
Data processor 7 is constituted.Wherein, the traveling platform 1 is a kind of rigid mobile platform based on railroad track, by car body 10,
Wheel 11, fixed wheel 12 and push rod 13.Wheel 11, fixed wheel 12 are installed on 10 two sides of car body, and wheel 11 connects with track upper surface
Touching, fixed wheel 12 is contradicted when car body 10 is deflected with track side surfaces, with correcting car body 10.Traveling platform 1 is added using lighter material
Work carries out smooth running, installs portable.
The shaft encoder 2 is mounted on the one of wheel of traveling platform 1, for measuring the stroke of traveling platform, and
The transmitting of control triggering 5 laser beam of laser.
The measurement bay 4 is rigidly connected by support frame 3 with traveling platform 1, and the geometric dimension of support frame 3 is by 3D phase
Depending on 6 visual angle of machine, resolution ratio and contact measurement precision.
The laser 5 and 3D camera 6 are mounted on measurement bay 4, when equipment is integrally placed on railroad track, measurement bay 4
It is parallel with rail and centrally located；The symmetry axis that laser 5 emits fan laser face is vertical with track level；3D camera 6
Central axis intersects with fan laser face symmetry axis, forms triangle relation, planar delta is vertical with railroad track face, 6 mirror of 3D camera
The angle that head central axis is biased to laser 5 is determined jointly by 6 visual angle of 3D camera, support frame 3,3D camera 6 and laser geometric size
It is fixed.
The data processor 7 is directly compressed, shown to the image data that 3D camera 6 acquires, storing and analysis in real time,
In the case of carrying out traveling platform 1, by the synchronous triggering 3D camera 6 of shaft encoder 2 and laser 5, contact net image data is realized
Continuous acquisition, while field programmable gate array (FPGA) is handled in real time in drive data processor 7, automatically identifies laser light
Spot, and realize the Coutinuous store and real-time display of the up to original image data of 400MB speed per second, and by image data
Reason software analysis meter calculating contact net leads high and stagger, and is diagnosed to be contact net automatically and leads high, stagger abnormal conditions.
In the software of image real time transfer, the determination of camera parameter is the key link, the stabilization of precision and algorithm
Property directly affects the accuracy of measuring instrument.In the present utility model, using camera image position and camera body polar coordinates
Angle geometrical relationship, accurate Analytic triangular method mathematical model is established, according to model by known contact net laser feature point
Image coordinate solves its spatial point three-dimensional coordinate, and you can get it railway contact line leads the geometric parameters such as height, stagger.
The utility model has done an example according to the needs of railway contact net measuring, specific as follows: the high 1.7m of support frame,
The long 1.2m of measurement bay, 3D camera pixel are 8,000,000, and vertically upward, camera is towards being biased to 17 degree of laser, laser and phase for laser
Machine is at a distance of 1.2m, and measuring instrument measurement interval minimum range can arrive 10mm, and the high level measurement accuracy of leading of contact net is ± 3mm, draws
Value measurement accuracy is ± 4mm out.
Claims (3)
1. a kind of laser image method wave contant net measuring instrument, it is characterised in that: including traveling platform (1), shaft encoder (2), support
Frame (3), measurement bay (4), laser (5), 3D camera (6) and data processor (7), the traveling platform (1) is that one kind is based on
The rigid mobile platform of railroad track, is processed using light material；The shaft encoder (2) measures traveling distance, and controls and swash
The output of light device (5) laser and data processor (7) acquisition storage processing data；Institute's support frame (3) and measurement bay (4) form one
Rigid structure makes measurement bay be located at traveling platform (1) intermediate and parallel with traveling platform direction of travel axis；Shown laser (5)
Be fixed on measurement bay (4), laser (5) transmitting fan laser face upward, and with traveling platform (1) direction of travel axial symmetry；
The 3D camera (6) is fixed on measurement bay (4), its camera lens upward and is biased to laser (5), 3D viewing field of camera also with traveling
Platform direction of travel axial symmetry；The data processor (7) completes image recognition, and is calculated according to laser facula geometric position
Contact line geometric parameter.
2. laser image method wave contant net measuring instrument according to claim 1, it is characterised in that: laser (5) and 3D camera
(6) measurement bay (4) are mounted on, when equipment is placed on railroad track, measurement bay (4) is parallel with rail and centrally located.
3. laser image method wave contant net measuring instrument according to claim 1, it is characterised in that: 3D camera (6) central axis with
The intersection of fan laser face symmetry axis, forms triangle relation, and planar delta is vertical with railroad track face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821562000.0U CN208780140U (en) | 2018-09-25 | 2018-09-25 | A kind of laser image method wave contant net measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821562000.0U CN208780140U (en) | 2018-09-25 | 2018-09-25 | A kind of laser image method wave contant net measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208780140U true CN208780140U (en) | 2019-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821562000.0U Active CN208780140U (en) | 2018-09-25 | 2018-09-25 | A kind of laser image method wave contant net measuring instrument |
Country Status (1)
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| CN (1) | CN208780140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174057A (en) * | 2018-09-25 | 2019-08-27 | 中铁电气化局集团有限公司 | A kind of laser image method wave contant net measuring instrument |
| CN110285762A (en) * | 2019-07-08 | 2019-09-27 | 四川艾德瑞电气有限公司 | Contact net dynamic characteristic real-time monitoring system |
-
2018
- 2018-09-25 CN CN201821562000.0U patent/CN208780140U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174057A (en) * | 2018-09-25 | 2019-08-27 | 中铁电气化局集团有限公司 | A kind of laser image method wave contant net measuring instrument |
| CN110285762A (en) * | 2019-07-08 | 2019-09-27 | 四川艾德瑞电气有限公司 | Contact net dynamic characteristic real-time monitoring system |
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