CN104742937B - Track operational process dynamic state of parameters detection platform - Google Patents
Track operational process dynamic state of parameters detection platform Download PDFInfo
- Publication number
- CN104742937B CN104742937B CN201310734339.XA CN201310734339A CN104742937B CN 104742937 B CN104742937 B CN 104742937B CN 201310734339 A CN201310734339 A CN 201310734339A CN 104742937 B CN104742937 B CN 104742937B
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- China
- Prior art keywords
- image
- processing unit
- rail
- laser sensor
- high precision
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
Abstract
The invention discloses a kind of track operational process dynamic state of parameters detection platform, including mechanical erection and position height regulating mechanism, image acquisition units, High-speed Image Acquisition compression processing unit and image high Precision Processing units；Wherein, with position height regulating mechanism for installing sensor and adjusting detection unit left and right horizontal position, image acquisition units acquire Rail Surface and form rail profile pattern image mechanical erection for being irradiated to the rail cross section in detection platform；Recompression is sent to image high Precision Processing unit after High-speed Image Acquisition compression processing unit is used to carry out lens distortion correction, geometric correction, image mosaic processing to the image of acquisition；Described image high Precision Processing unit includes computer and image processing software, the computer receives and stores the compression image of High-speed Image Acquisition compression processing unit transmission by network, described image processing software carries out image high Precision Processing and calibration restores, and further increases the measuring precision.
Description
Technical field
The present invention relates to track fields, specifically, it is dynamic to be related specifically to a kind of track operational process parameter
The model foundation of state detection platform.
Background technology
For track as train operation basis, its effect is steady, safely This train is bound for XXX for guiding, directly bears vehicle
The pressure of the rolling stock transmitted is taken turns, and pressure diffusion is satisfied to roadbed or bridge on works.Rail traffic at high speed, it is highly dense
The direction of degree is developed, and the work of traffic operation safety guarantee becomes more and more arduous, and traffic safety and comfort problem have become transport
Critical issue in production.In railway infrastructure, track is always weak link, therefore city rail dynamic detection becomes
One important measures.
For the track detecting of country's rail traffic still based on track checking car, automation and the level of informatization be not high at present, detection
Technology is not perfect, constrains the precision and reliability of detection to a certain extent.
After running speed or detection speed improve, the inadaptable of domestic track checking car becomes increasingly conspicuous, existing track checking car
Technology thinking of development and external advanced track checking car technological development direction are inconsistent, will influence inspection result it is objective with it is public
It just, will be increasing with the gap of advanced country track checking car technology.
Invention content
The present invention be actually needed solve the technical issues of be：In view of the deficiencies of the prior art, a kind of track is provided to run
The model of journey dynamic state of parameters detection platform, including image acquisition units, High-speed Image Acquisition compression processing unit and image are high-precision
Processing unit is spent, the precision and reliability of track detecting are improved.
Following technical scheme may be used to realize in technical problem solved by the invention：
Track operational process dynamic state of parameters detection platform, it is characterised in that：It include image acquisition units, image high speed adopt
Collect compression processing unit and image high Precision Processing unit；
Described image collecting unit includes mounting bracket, laser sensor, image pick-up card, rotary encoder and guiding
Platform；The mounting bracket includes two metallic rods, and one end of two metallic rods is connected and fixed with train bottom, two metals
The other end of bar is located at the both sides of rail, is mounted on laser sensor in the nearly rail side of the metallic rod and image is adopted
Truck, the laser sensor are used for being irradiated on the inside of rail, and described image capture card is formed for acquiring Rail Surface
Rail profile pattern image；The end of two metallic rods is also separately installed with rotary encoder and guide table, the rotary coding
The data-out port of device is connect with laser sensor, and for accurately controlling laser sensor displacement distance, the guide table is used
In ensure metallic rod moving range in the reconnaissance range of laser sensor；
Described image high speed acquisition compression processing unit to image acquisition units the image collected for carrying out figure progress
Lens distortion correction, geometric correction, image mosaic processing, obtain a wide range of, the high-definition picture for meeting track detecting requirement,
Then buffer compression processing is carried out to rail profile pattern image, and compression image is sent to image high Precision Processing unit；
Described image splicing is to overlap the laser scanning line of two laser transmitter projects by experimental method, obtains best survey
The method of amount data determines sensor mounting location, and carries out splicing to image；
Described image high Precision Processing unit includes computer and image processing software, and the computer is received by network
And the compression image of High-speed Image Acquisition compression processing unit transmission is stored, described image processing software carries out at image high-precision
Reason and calibration reduction, further increase the measuring precision；Described image high Precision Processing is passed through according to acquired image
The mathematical model established by experimental method obtains data result.
Further, further include movement and position control system, the movement and position control system include servo motor,
Lead screw, slide unit and pulley；The output shaft of the servo motor and one end of lead screw connect, for converting the rotation of servo motor
For linear motion；One is equipped on the lead screw to have mounting groove, peace along the slide unit that lead screw axial direction moves, the slide unit
Connecting bracket is provided in tankage；The connecting bracket includes the first keel and the second keel disposed in parallel, the first keel and
It is provided with several locating rods between second keel, mounting assembly, the pulley are equipped in the first keel and bicarinate end
The other end of connecting bracket is fixed on by mounting assembly.
Further, the mounting bracket is c-type structural frames, for installing laser sensor, image pick-up card and guiding
Platform.
Further, the laser sensor is respectively arranged in the left and right sides of c-type structural frames, the maximum of laser sensor
It is 120 ° to strafe angle, and the angle of two laser sensors is 90 °, for realizing 180 ° of coverings comprehensively.
The end of c-type structural frames one end is equipped with height-adjustable pulley platform, the lower section installation of pulley platform
There are 2 directive wheels, the ground plane of directive wheel to be equipped with rubber adhesive；
The end of the c-type structural frames other end is equipped with guide table, and the guide table passes through shaft coupling and servo motor
Driving lead screw linkage, for controlling c-type structural frames entirety uniform motion；
The side of the guide table is also equipped with rotary encoder, the data-out port and laser of the rotary encoder
Sensor connects, for judging c-type structural frames entirety travel distance.
Compared with prior art, beneficial effects of the present invention are as follows：
By specially designed mechanical erection and regulating mechanism, at blending image collecting unit, High-speed Image Acquisition compression
The structure design of unit and image high Precision Processing unit is managed, measurement accuracy and measurement result reliability are high, and measurement data is more
It is comprehensively and intuitive.
Description of the drawings
Fig. 1 is the structure diagram of track operational process dynamic state of parameters detection platform of the present invention.
Fig. 2 is the structural schematic diagram of image acquisition units of the present invention.
Fig. 3 is the structural schematic diagram of movement and position control system of the present invention.
Figure label explanation：Mounting bracket 110, laser sensor 120, rotary encoder 130, guide table 140, rail
150, servo motor 210, lead screw 220, slide unit 230, pulley 240.
Specific implementation mode
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, with reference to
Specific implementation mode, the present invention is further explained.
Referring to Fig. 1, Fig. 2 and Fig. 3, track operational process dynamic state of parameters detection platform of the present invention, it includes mainly
Image acquisition units, High-speed Image Acquisition compression processing unit and image high Precision Processing unit.
Wherein, image acquisition units include mounting bracket 110, laser sensor 120, image pick-up card, rotary encoder
130 and guide table 140；The mounting bracket 110 includes two metallic rods, and one end and the train bottom of two metallic rods connect
Fixation is connect, the other end of two metallic rods is located at the both sides of rail 150, pacifies in 150 side of nearly rail of the metallic rod
Equipped with laser sensor 120 and image pick-up card, the laser sensor 120 is used to be irradiated 150 inside of rail, described
Image pick-up card forms 150 cut surface character figure of rail for acquiring 150 surface of rail；Also pacify respectively the end of two metallic rods
Equipped with rotary encoder 130 and guide table 140.
The device is installed on detection train, can be measured into Mobile state.The measuring system is to be based on laser triangulation, will
Structure laser sensor 120 is divided to is mounted on track checking car bottom for two sets for a formula, measures the abrasion of left and right rail 150 respectively.By height
150 inside of laser plane alignment rail of intensity is irradiated, and characterization 150 cut surface character figure of rail is formed on 150 surface of rail
Shape.
Described image high speed acquisition compression processing unit to image acquisition units the image collected for carrying out figure progress
Lens distortion correction, geometric correction, image mosaic processing, obtain a wide range of, the high-definition picture for meeting track detecting requirement,
Then buffer compression processing is carried out to 150 cut surface character figure of rail, and compression image is sent to image high Precision Processing list
Member.
Since real image is influenced by ambient light, diffusing reflection, the oxidation of rail 150, the stain point that oils of rail 150, together
When rail 150 coarse, scanning rail 150 section laser plane have certain thickness, optical distortion, the vibration of sensor equal
Pattern distortion can be caused, the accuracy of measuring system is influenced so that the shape identification of 150 section of rail becomes complex.?
So lens distortion correction must be carried out to the sequence image of acquisition, a series of geometric correction, processing such as splicing meet rail to obtain
A wide range of, the high-definition picture of road testing requirements.
Described image high Precision Processing unit includes computer and image processing software, and the computer is received by network
And the compression image of High-speed Image Acquisition compression processing unit transmission is stored, described image processing software carries out at image high-precision
Reason and calibration reduction, further increase the measuring precision.
The invention also includes having movement and position control system, the movement and position control system include servo motor
210, lead screw 220, slide unit 230 and pulley 240；The output shaft of the servo motor 210 is connect with one end of lead screw 220, is used for
The rotation of servo motor 210 is converted into linear motion；One is equipped on the lead screw 220 to be moved along 220 axial direction of lead screw
Dynamic slide unit 230, the slide unit 230 have mounting groove, connecting bracket are provided in mounting groove；The connecting bracket includes parallel
The first keel and the second keel being arranged, are provided with several locating rods between the first keel and the second keel, in the first keel and
Bicarinate end is equipped with mounting assembly, and the pulley 240 is fixed on the other end of connecting bracket by mounting assembly.
Mounting bracket is c-type structural frames, for installing laser sensor 120, image pick-up card and guide table 140.
Laser sensor 120 is high-precision sensor, is respectively arranged in two shoulder of left and right of c-type structural frames, the two is at 90 degree
Angle.Angle maximum itself is strafed up to 120 degree of characteristic using laser sensor 120, realizes that railhead part 180 degree is covered comprehensively
Lid.
It is connected with the pulley platform of adjustable height (0-2cm) below c-type structural frames left end, is equipped under the pulley platform
2 directive wheels, directive wheel ground plane coat 0.5cm rubber, are hit with reducing possible hard hit during frame is carried out.
Directive wheel other side design 1 rotary encoder 130 of installation, to judge frame entirety travel distance.
The height-adjustable integral level for being designed to balance c-type structural frames of pulley platform, it is ensured that laser sensor 120
Sweep angle covers rail head omnidirection.
Connection is integrally at the uniform velocity transported by the guide table 140 of servo-drive with controlling c-type structural frames below c-type structural frames right end
It is dynamic.What this model considered is 2 meters of detection range, and servo motor drives lead screw to rotate by shaft coupling, and then drives guide table
The whole c-type structure of 140 connections is mad, final to realize that servo-drive c-type structural frames at the uniform velocity be moved along another rail of track, with
Detection is tested all kinds of parameters of rail, realizes the testing requirements of unlimited distance.
The present invention can not only detect the dynamic parameter of rail 150, and to the data that front-end collection arrives carry out safety,
It efficiently transmits, and the real-time display of processing and data result in real time is carried out to detection data, to improve track detecting
Information-based and automation, reduces the breakdown maintenance period, improves working efficiency.According to the position of front end data point, take corresponding
Communication mode, such as wifi, GPRS, GSM, RFID, TCP/IP etc., by data with the format transmission that standardizes to main control computer
Systematic unity stores, and processing is further analysed to collected data by establishing relevant mathematical model.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. track operational process dynamic state of parameters detection platform, it is characterised in that：It includes image acquisition units, High-speed Image Acquisition
Compression processing unit and image high Precision Processing unit；
Described image collecting unit includes mounting bracket, laser sensor, image pick-up card, rotary encoder and guide table；Institute
It includes two metallic rods to state mounting bracket, and one end of two metallic rods is connected and fixed with train bottom, two metallic rods
The other end is located at the both sides of rail, and laser sensor and Image Acquisition are mounted in the nearly rail side of the metallic rod
Card, the laser sensor are used for being irradiated on the inside of rail, and described image capture card forms steel for acquiring Rail Surface
Rail cut surface character figure；The end of two metallic rods is also separately installed with rotary encoder and guide table, the rotary encoder
Data-out port connect with laser sensor, for accurately controlling laser sensor displacement distance, the guide table is used for
Ensure the moving range of metallic rod in the reconnaissance range of laser sensor；
Described image high speed acquisition compression processing unit is used to carry out figure to image acquisition units the image collected to carry out lens
Distortion correction, geometric correction, image mosaic processing, obtain a wide range of, the high-definition picture for meeting track detecting requirement, then
Buffer compression processing is carried out to rail profile pattern image, and compression image is sent to image high Precision Processing unit；It is described
Image mosaic processing obtains optimum measurement number to overlap the laser scanning line of two laser transmitter projects by experimental method
According to method determine sensor mounting location, and splicing is carried out to image；
Described image high Precision Processing unit includes computer and image processing software, and the computer is received and deposited by network
Store up High-speed Image Acquisition compression processing unit send compression image, described image processing software carry out image high Precision Processing and
Calibration reduction, further increases the measuring precision；Described image high Precision Processing is according to acquired image, by passing through
The mathematical model that experimental method is established obtains data result；
Further include movement and position control system, the movement and position control system include servo motor, lead screw, slide unit and cunning
Wheel；The output shaft of the servo motor and one end of lead screw connect, for the rotation of servo motor to be converted to linear motion；Institute
State one is equipped on lead screw can be along the slide unit that lead screw axial direction moves, the slide unit has mounting groove, is provided in mounting groove
Connecting bracket；The connecting bracket includes the first keel and the second keel disposed in parallel, between the first keel and the second keel
Several locating rods are provided with, are equipped with mounting assembly in the first keel and bicarinate end, the pulley passes through mounting assembly
It is fixed on the other end of connecting bracket.
2. track operational process dynamic state of parameters detection platform according to claim 1, it is characterised in that：The mounting bracket
For c-type structural frames, for installing laser sensor, image pick-up card and guide table.
3. track operational process dynamic state of parameters detection platform according to claim 2, it is characterised in that：The laser sensing
Device is respectively arranged in the left and right sides of c-type structural frames, and it is 120 ° that the maximum of laser sensor, which strafes angle, two laser sensors
Angle is 90 °, for realizing 180 ° of coverings comprehensively.
4. track operational process dynamic state of parameters detection platform according to claim 2, it is characterised in that：The c-type structure
The end of frame one end is equipped with height-adjustable pulley platform, and 2 directive wheels are equipped with below pulley platform, directive wheel
Ground plane is equipped with rubber adhesive；
The end of the c-type structural frames other end is equipped with guide table, the drive that the guide table passes through shaft coupling and servo motor
Dynamic lead screw linkage, for controlling c-type structural frames entirety uniform motion；
The side of the guide table is also equipped with rotary encoder, and the data-out port and control system of the rotary encoder are defeated
Enter end connection, acquisition angles change pulse signal, by conversion for judging c-type structural frames entirety travel distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734339.XA CN104742937B (en) | 2013-12-27 | 2013-12-27 | Track operational process dynamic state of parameters detection platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734339.XA CN104742937B (en) | 2013-12-27 | 2013-12-27 | Track operational process dynamic state of parameters detection platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104742937A CN104742937A (en) | 2015-07-01 |
| CN104742937B true CN104742937B (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310734339.XA Expired - Fee Related CN104742937B (en) | 2013-12-27 | 2013-12-27 | Track operational process dynamic state of parameters detection platform |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336722A (en) * | 2017-07-25 | 2017-11-10 | 西南交通大学 | Track light belt distribution detection car and equipment |
| CN109979362A (en) * | 2017-12-27 | 2019-07-05 | 苏州锐创广告有限公司 | A kind of lift advertisement system |
| CN109297417B (en) * | 2018-08-30 | 2019-06-11 | 汕头市昊哲网络科技有限公司 | Intelligent track train height adjustment system |
| CN109798850B (en) * | 2019-02-01 | 2020-10-20 | 湖南大学 | Rail corrugation measuring method |
| CN110080049B (en) * | 2019-04-04 | 2020-08-11 | 华中科技大学 | Device and method for repairing steel rail by increasing and decreasing materials by combining laser cladding and machining |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2820643Y (en) * | 2004-11-23 | 2006-09-27 | 湖南科技大学 | Intelligent online detecting system for train tread bruise |
| CN200964120Y (en) * | 2006-09-25 | 2007-10-24 | 北京福斯达高科技公司 | High speed vehicle mounted orbital image recognition system |
| CN100480627C (en) * | 2007-10-26 | 2009-04-22 | 北京航空航天大学 | Steel rail wearing integrative parameter vehicle-mounted dynamic measuring device and method |
| CN102310869A (en) * | 2011-06-01 | 2012-01-11 | 王平 | Trolley for testing profile of steel rail |
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