CN110458899B - Calibrating device for TFDS, TVDS and TEDS system rail side imaging device - Google Patents

Calibrating device for TFDS, TVDS and TEDS system rail side imaging device Download PDF

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Publication number
CN110458899B
CN110458899B CN201910783677.XA CN201910783677A CN110458899B CN 110458899 B CN110458899 B CN 110458899B CN 201910783677 A CN201910783677 A CN 201910783677A CN 110458899 B CN110458899 B CN 110458899B
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fixedly connected
calibration
truss
fixing
pipes
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CN110458899A (en
Inventor
任崇巍
赵俊彦
居伟强
李光明
朱玉军
曲正君
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Beijing Gtv Technology Development Co ltd
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Beijing Gtv Technology Development Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/041Allowing quick release of the apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043Allowing translations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/18Heads with mechanism for moving the apparatus relatively to the stand
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/42Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/80Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention relates to the technical field of application and maintenance of railway operation safety monitoring system equipment, and discloses a calibration device for a track side imaging device of a TFDS (TFDS), a TVDS and a TEDS system, which comprises a left side base, a right side base, two vertical trusses, a fixing mechanism, a transverse truss and a calibration platform, wherein the calibration platform can be fixed on the transverse truss and can also carry out left-right movement to detect in-track imaging equipment, and the calibration platform can also be hung on the end part of the transverse truss and can move up and down along the vertical trusses along with the transverse trusses to detect out-track imaging equipment. The invention adopts the screw thread and magnet modes, can be quickly assembled and disassembled, and improves the portability of the instrument, and the standard pole of the invention adopts the carbon fiber material pipe, and the base, the middle beam and the upper beam adopt the hollowed-out technology, thereby reducing the weight of the calibration instrument, facilitating the turnover and transportation, providing convenient conditions for field operation, and further improving the calibration efficiency.

Description

Calibrating device for TFDS, TVDS and TEDS system rail side imaging device
Technical Field
The invention relates to the technical field of application and maintenance of railway operation safety monitoring system equipment, in particular to a calibration device for a track side imaging device of a TFDS, TVDS and TEDS system.
Background
TFDS (dynamic image detection system for truck operation faults), TVDS (dynamic image detection system for passenger train operation faults), TEDS (dynamic image detection system for motor train unit operation faults) are intelligent systems which are used for installing a high-speed camera array on the rail side of a railway, collecting the body image information of the railway vehicle in operation, transmitting the body image information to a train inspection detection center in real time through a network, and identifying faults by combining pattern identification and manual inspection technology. The method can realize the conversion from a manual maintenance mode to an mechanical maintenance mode in the railway vehicle fault detection technology, and the conversion from manual control to mechanical control in the railway vehicle maintenance quality.
With the development of heavy load and high-speed railways, the operation mode of the former personnel inspection and repair can not meet the development of heavy load and high-speed railways, the improvement of the railway transportation capacity is seriously restricted, the normal transportation order and the driving safety face huge risks, and the TFDS, TVDS and TEDS devices are increasingly important as railway driving safety monitoring devices.
The overhaul and maintenance working quality of TFDS, TVDS and TEDS equipment has direct influence on the normal and stable operation of the equipment, but at present, the equipment installation and configuration parameters of different detection stations are relatively different by means of personal experience, the equipment performance in operation is degraded, the acquired image information is quite different, a set of equipment can be adjusted through being on line for several times, and meanwhile, no standard image brings trouble to the fault judgment of dynamic inspectors in a train inspection and detection center, so that potential safety hazards are caused.
In installing or servicing a rail side image detection system, field workers are often required to perform work at multiple locations. Before the calibration device is invented, in each installation and debugging process, the judgment is carried out by the feeling of a truck or an installation master, and the cost of the truck is too high, and the spectrum is not too reliable by the feeling.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a calibration device for a track side imaging device of a TFDS (TFDS), TVDS and TEDS system, which solves the problems.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a calibration device that can be used to TFDS, TVDS and TEDS system rail limit imaging device, includes left side base, right side base, vertical truss, fixed establishment, horizontal truss and marks the platform and constitute, the quantity of vertical truss is two, and two vertical trusss respectively with left side base and right side base fixed connection, left side base is including left side lower seat, the mount is installed on the upper portion of left side lower seat, and the mount is connected with laser pointer, the round hole has all been seted up to the both sides at left side lower seat top, and the inside of left side lower seat round hole passes through screw fixedly connected with left fixed station, and the inside of left side lower seat is provided with liftable magnet, right side base includes right lower seat, two round holes have been seted up at the top of right side lower seat, the inside of right side lower seat round hole passes through screw fixedly connected with right fixed station, the middle part fixedly connected with at right lower seat top shows the frame, and the inside of right lower seat is provided with liftable magnet.
Both ends of the transverse truss are slidably and fixedly connected with one sides of the two vertical trusses corresponding to each other through a fixing mechanism.
The calibration table can be fixed on the transverse truss, the calibration table can also move left and right on the transverse truss to detect the imaging equipment in the rail, and the calibration table can also be hung at the end part of the transverse truss and move up and down along the vertical truss along with the transverse truss to detect the imaging equipment outside the rail.
The calibration table comprises a supporting plate, square holes are formed in the middle of the supporting plate, one side, away from the transverse truss, of the supporting plate is fixedly connected with an instrument, one end, close to the transverse truss, of the supporting plate is fixedly connected with a clamping block, grooves and threaded holes are formed in the clamping block, the threaded holes are communicated with the grooves, and threaded rods are connected with internal threads of the threaded holes.
The utility model discloses a motor, including horizontal truss, backup pad, bearing frame, table cylinder fixed connection, design target is arranged in the one side fixedly connected with cardboard that the backup pad is close to horizontal truss, one side fixedly connected with bearing frame first and bearing frame second that the cardboard was kept away from to the backup pad, the inside of bearing frame is connected with first through the bearing rotation, the inside of bearing frame second is connected with second through the bearing rotation, one side that first and second corresponds of pivot fixedly connected with plectane and plectane respectively, through table cylinder fixed connection between plectane and the plectane, and the outside of table cylinder is attached with the design target, one side fixedly connected with direct current motor that the plectane was kept away from to the bearing frame first, direct current motor's outside is provided with the protecting crust.
Preferably, each vertical truss comprises two lower pipes, the bottoms of the four lower pipes are respectively fixedly connected with the tops of the two left fixing tables and the two right fixing tables, each lower pipe is provided with a lower thread sleeve in a threaded connection mode, each lower thread sleeve is provided with an upper thread sleeve in a threaded connection mode, each upper thread sleeve is sleeved with an upper pipe in a threaded connection mode, and each upper pipe is fixedly connected with the top of each upper pipe through the upper table.
Preferably, each fixing mechanism comprises a fixing plate, two vertical locating holes and vertical square holes are formed in each fixing plate, four upper pipes are respectively fixed in the four locating holes, each square hole is movably connected with a movable plate, each fixing plate is provided with arc grooves on two sides, each fixing plate is fixedly connected with a squeezing plate through a threaded rod, each fixing plate is provided with fixing holes on two sides, each fixing hole is communicated with each square hole, a bottom plate is fixedly connected to the outer side of each fixing plate, and each bottom plate is provided with a square groove.
Preferably, the transverse truss comprises two left pipes, the left ends of the two left pipes are respectively fixed inside two arc-shaped grooves of the left fixing plate, the right ends of the two left pipes are respectively connected with left thread sleeves in a threaded mode, the right ends of the left thread sleeves are respectively connected with right thread sleeves in a threaded mode, the right ends of the right thread sleeves are respectively connected with right pipes in a threaded mode, the right ends of the two right pipes are respectively connected inside two arc-shaped grooves of the right fixing plate in a fixed mode, and the size and the shape of the left pipes are identical to those of the right pipes.
A TFDS, TVDS and TEDS rail edge imaging calibration method adopts the calibration device, and comprises the following steps:
1) The calibration device is placed on a rail, and then the lower part of the calibration device preliminarily pushes the calibration rack to the upper part of the imaging equipment through the roller.
2) And opening the laser indicator, and moving the calibration device to enable the light beam of the laser indicator to be aligned with the middle point of the aperture of the imaging device.
3) And stabilizing the calibration device, enabling the magnet to move downwards to the upper surface of the guide rail, enabling the magnet to be attracted with the steel rail, and firmly fixing the calibration device on the steel rail by utilizing the magnets on the left lower seat and the right lower seat.
4) The calibration table is taken and placed on the transverse truss rod of the calibration device, and the semicircular groove of the calibration table is clamped on the transverse truss rod of the calibration device.
5) And manually moving the calibration table to the position right above the imaging equipment to be calibrated, switching on a power supply to supply power to the power source, and enabling the power source to drive the meter roller to rotate, so as to realize the dot matrix imaging requirement, and switching on the camera imaging to be calibrated to finish the calibration of the imaging equipment on the inner side of the rail.
6) The calibration table is hung on the outer side of the fixing mechanism, the semicircular groove below the calibration table is clamped on the vertical rod of the vertical truss, the clamping block below the calibration table is hung inside the square groove in the fixing mechanism, the transverse truss is moved up and down to the required position, the meter roller is rotated, the camera imaging to be calibrated is opened, and the calibration of the imaging equipment on the outer side of the rail is completed.
7) According to the optimal focal length requirement of the imaging equipment, the transverse truss of the calibration device is adjusted to move up and down along the vertical truss so as to drive the adjustment of the height direction of the calibration table.
(III) beneficial effects
Compared with the prior art, the invention provides a calibration device for a track side imaging device of a TFDS, TVDS and TEDS system, which has the following beneficial effects:
1. the invention adopts the screw thread and magnet modes, can be quickly assembled and disassembled, and improves the portability of the instrument.
2. The invention adopts the carbon fiber material pipe, and the base, the lower pipe, the upper pipe, the left pipe and the right pipe all adopt the hollowed-out technology, thereby reducing the weight of the calibrator, facilitating the turnover and transportation, providing convenient conditions for field operation and improving the calibration efficiency.
3. According to the invention, the base is centered by the laser, and the calibration platform is calibrated by motor rotation pushing, so that the automation degree of the equipment is improved, and the debugging efficiency is improved.
In a word, the calibration device for the TFDS, TVDS and TEDS system rail side imaging devices reduces the operation cost, improves the working efficiency, and enables the train inspection operation to be more standardized and standardized.
Drawings
FIG. 1 is a schematic diagram of the front view of a calibration stage of the present invention positioned on a transverse truss;
FIG. 2 is a schematic diagram of the front view of the calibration stand of the present invention on a vertical truss;
FIG. 3 is a schematic view of a split structure of the calibration stand of the present invention on a vertical truss;
FIG. 4 is a schematic diagram of the front view of the calibration stand of the present invention;
FIG. 5 is an enlarged schematic view of a portion of the invention at A in FIG. 3;
FIG. 6 is an enlarged schematic view of a portion of the invention at B in FIG. 3;
FIG. 7 is an enlarged schematic view of a portion of the invention at C in FIG. 3;
FIG. 8 is an enlarged schematic view of a portion of the invention at D in FIG. 3;
FIG. 9 is a schematic top view of a transverse truss of the present invention;
FIG. 10 is a schematic side view of a vertical truss of the present invention;
FIG. 11 is a schematic elevational cross-sectional view of the present invention of FIG. 2;
FIG. 12 is an enlarged partial schematic view of the invention at E in FIG. 11;
fig. 13 is an enlarged partial schematic view of the invention at F in fig. 11.
In the figure: 1 left side base, 11 left lower seat, 12 fixed frame, 13 laser indicator, 14 left fixed table, 2 right side base, 21 right lower seat, 22 representation frame, 23 right fixed table, 3 vertical truss, 31 lower tube, 32 lower thread sleeve, 33 upper thread sleeve, 34 upper tube, 35 upper table, 4 fixed mechanism, 41 fixed plate, 42 positioning hole, 43 square hole, 44 movable plate, 45 arc groove, 46 squeeze plate, 47 fixed hole, 48 bottom plate, 49 square groove, 5 horizontal truss, 51 left tube, 52 left thread sleeve, 53 right thread sleeve, 54 right tube, 6 calibration table, 61 support plate, 62 instrument, 63 fixture block, 64 groove, 65 fixture plate, 66 bearing seat I, 67 spindle I, 68I, 69 DC motor, 610 protecting shell, 611 bearing seat II, 612 spindle II, 613 II, 614 table roller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-13, a calibration device for TFDS, TVDS, and TEDS system rail side imaging devices includes a left base 1, a right base 2, a vertical truss 3, a fixing mechanism 4, a transverse truss 5, and a calibration table 6.
The number of the vertical trusses 3 is two, the two vertical trusses 3 are respectively and fixedly connected with the left side base 1 and the right side base 2, the left side base 1 comprises a left lower base 11, the upper part of the left lower base 11 is fixedly connected with a laser indicator 13 through an adjustable fixing frame 12, the adjustable fixing frame 12 consists of a light marking frame and a light marking clamp, the light marking frame is fixed at the top of the left lower base 11 through a screw, a round hole is formed in the light marking frame, the light marking clamp is rotationally connected with the light marking frame through the round hole in the light marking frame, a thread groove is formed in the right side of the light marking clamp, a nut is arranged on the thread groove of the light marking clamp, the rotation tightness of the light marking clamp can be adjusted through the tightness of the nut, the angle of the light marking clamp can be conveniently adjusted, the laser indicator 13 is fixedly connected with the light marking frame through a fixing hole in the light marking clamp, so make the angle of laser indicator 13 can change as required, the round hole has all been seted up to the both sides at left lower seat 11 top, and the inside of left lower seat 11 round hole is through screw fixedly connected with left fixed station 14, the inside of left lower seat 11 is provided with liftable magnet, right side base 2 includes right lower seat 21, two round holes have been seted up at the top of right lower seat 21, the inside of right lower seat 21 round hole is through screw fixedly connected with right fixed station 23, the middle part fixedly connected with at right lower seat 21 top shows frame 22, the inside of right lower seat 21 is provided with liftable magnet, the movable hole has all been seted up on left lower seat 11 and the right lower seat 21, be provided with the hand in the inside of movable hole and twist, the bottom of turning by hand is through screw fixedly connected with magnet, can change the height of magnet through twisting the hand.
Both ends of the transverse truss 5 are slidably and fixedly connected with one sides corresponding to the two vertical trusses 3 through fixing mechanisms 4.
Each vertical truss 3 comprises two lower pipes 31, the bottoms of the four lower pipes 31 are fixedly connected with the tops of the two left fixing tables 14 and the two right fixing tables 23 respectively, the tops of the lower pipes 31 are all in threaded connection with lower threaded sleeves 32, the tops of the lower threaded sleeves 32 are all in threaded connection with upper threaded sleeves 33, the tops of the upper threaded sleeves 33 are all in threaded connection with upper pipes 34, the tops of the two corresponding upper pipes 34 are fixedly connected through an upper table 35, and the pipe bodies of the vertical trusses 3 are manufactured by adopting carbon fiber material pipes and hollowed-out technology.
Each fixing mechanism 4 comprises a fixing plate 41, two vertical locating holes 42 and vertical square holes 43 are formed in each fixing plate 41, four upper pipes 34 are respectively fixed in the four locating holes 42, movable plates 44 are movably connected in each square hole 43, arc grooves 45 are formed in two sides of each fixing plate 41, extrusion plates 46 are fixedly connected to two sides of each fixing plate 41 through threaded rods, fixing holes 47 are formed in two sides of each fixing plate 41, the fixing holes 47 are communicated with the square holes 43, bottom plates 48 are fixedly connected to the outer sides of each fixing plate 41, and square grooves 49 are formed in each bottom plate 48.
The transverse truss 5 comprises two left pipes 51, the left ends of the two left pipes 51 are respectively fixed inside the two arc-shaped grooves 45 of the left fixing plate 41, the right ends of the two left pipes 51 are respectively connected with left threaded sleeves 52 in a threaded manner, the right ends of the two left threaded sleeves 52 are respectively connected with right threaded sleeves 53 in a fixedly manner, the right ends of the two right threaded sleeves 53 are respectively connected with a right pipe 54 in a fixedly manner, the right ends of the two right pipes 54 are respectively connected inside the two arc-shaped grooves 45 of the right fixing plate 41 in a fixedly manner, the size and shape of the left pipes 51 are identical to the size and shape of the right pipes 54, and the pipe bodies of the transverse truss 5 are manufactured by adopting carbon fiber material pipes and hollowed-out technology.
The calibration table 6 can be fixed on the transverse truss 5, the calibration table 6 can also move left and right on the transverse truss 5 to detect the in-orbit imaging equipment, and the calibration table 6 can also be hung at the end part of the transverse truss 5 and move up and down along the vertical truss 3 along with the transverse truss 5 to detect the out-orbit imaging equipment.
The calibration stand 6 comprises a support plate 61, a square hole is formed in the middle of the support plate 61, an instrument 62 is fixedly connected to one side, away from the transverse truss 5, of the support plate 61, a clamping block 63 is fixedly connected to one end, close to the transverse truss 5, of the support plate 61, a groove 64 and a threaded hole are formed in the clamping block 63, the threaded hole is communicated with the groove 64, a threaded rod is connected to the threaded hole in an internal thread mode, and the size and the shape of the groove 64 are identical to those of the right tube 54.
One end of the supporting plate 61, which is close to the transverse truss 5, is fixedly connected with a clamping plate 65, one side of the supporting plate 61, which is far away from the clamping plate 65, is fixedly connected with a first bearing seat 66 and a second bearing seat 611, a first rotating shaft 67 is rotatably connected to the inner portion of the first bearing seat 66 through a bearing, a second rotating shaft 612 is rotatably connected to the inner portion of the second bearing seat 611 through a bearing, one sides, corresponding to the first rotating shaft 67 and the second rotating shaft 612, of the first rotating shaft 67 are respectively fixedly connected with a circular plate 68 and a second circular plate 613, the first circular plate 68 is fixedly connected with the second circular plate 613 through a surface roller 614, a design target is attached to the outer portion of the surface roller 614, one side, which is far away from the first circular plate 68, of the first bearing seat 66 is fixedly connected with a direct current motor 69, a protective shell 610 is arranged on the outer portion of the direct current motor 69, and an output shaft of the direct current motor 69 is fixedly connected with the first rotating shaft 67.
A TFDS, TVDS and TEDS rail edge imaging calibration method comprises the following steps:
1) Placing the calibration device on a rail, and then primarily pushing the calibration table 6 frame to the upper part of the imaging equipment by a roller below the calibration device;
2) The laser pointer 13 is turned on and the calibration means is moved such that the beam of light of the laser pointer 13 is directed at an intermediate point at the aperture of the imaging device.
3) Stabilizing the calibration device, enabling the magnet to move downwards to the upper surface of the guide rail, enabling the magnet to be attracted with the steel rail, and firmly fixing the calibration device on the steel rail by utilizing the magnets on the left lower seat 11 and the right lower seat 21;
4) The calibration table 6 is taken and placed on the transverse truss 5 rod of the calibration device, and a semicircular groove 64 of the calibration table 6 is clamped on the transverse truss 5 rod of the calibration device;
5) Manually moving the calibration table 6 to the position right above the imaging equipment to be calibrated, turning on a power supply to supply power to the power source, wherein the power source drives the meter roller 614 to rotate to realize the dot matrix imaging requirement, turning on the camera imaging to be calibrated, and completing the calibration of the imaging equipment on the inner side of the rail;
6) Hanging a calibration table 6 on the outer side of the fixing mechanism 4, clamping a semicircular groove 64 below the calibration table 6 on a vertical rod of the vertical truss 3, hanging a clamping block 63 below the calibration table 6 into a square groove 49 in the fixing mechanism 4, moving the horizontal truss 5 up and down to a required position, rotating a meter roller 614, opening a camera to be calibrated for imaging, and completing calibration of the imaging equipment on the outer side of the rail;
7) According to the optimal focal length requirement of the imaging equipment, the transverse truss 5 of the calibration device is adjusted to move up and down along the vertical truss 3 so as to drive the calibration table 6 to adjust in the height direction.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. The utility model provides a calibration device that can be used to TFDS, TVDS and TEDS system rail limit imaging device, includes left side base (1), right side base (2), vertical truss (3), fixed establishment (4), horizontal truss (5) and marks platform (6) and constitutes its characterized in that: the number of the vertical trusses (3) is two, and the two vertical trusses (3) are fixedly connected with the left base (1) and the right base (2) respectively;
both ends of the transverse truss (5) are slidably and fixedly connected with one sides corresponding to the two vertical trusses (3) through fixing mechanisms (4);
the calibration table (6) is fixed on the transverse truss (5), the calibration table (6) also moves left and right on the transverse truss (5) to detect the imaging equipment in the rail, the calibration table (6) is also hung at the end part of the transverse truss (5) and moves up and down along the vertical truss (3) along with the transverse truss (5) to detect the imaging equipment outside the rail,
wherein the left side base (1) comprises a left lower seat (11), a fixing frame (12) is arranged on the upper part of the left lower seat (11), the fixing frame (12) is connected with a laser indicator (13), round holes are formed in two sides of the top of the left lower seat (11), a left fixing table (14) is fixedly connected in the round holes of the left lower seat (11) through screws, a liftable magnet is arranged in the left lower seat (11),
the right side base (2) comprises a right lower seat (21), two round holes are formed in the top of the right lower seat (21), a right fixing table (23) is fixedly connected to the inside of the round holes of the right lower seat (21) through screws, a representation frame (22) is fixedly connected to the middle of the top of the right lower seat (21), a liftable magnet is arranged in the right lower seat (21),
four groups of rollers are respectively hidden in the left base (1) and the right base (2), the rollers are connected to the base through screw shafts,
each vertical truss (3) comprises two lower pipes (31), the bottoms of the four lower pipes (31) are respectively and fixedly connected with the tops of the two left fixing tables (14) and the two right fixing tables (23), the tops of the lower pipes (31) are respectively and fixedly connected with a lower thread sleeve (32), the tops of the lower thread sleeves (32) are respectively and fixedly connected with an upper thread sleeve (33), the tops of the upper thread sleeves (33) are respectively and fixedly connected with an upper pipe (34),
the tops of every two corresponding upper pipes (34) are fixedly connected through an upper table (35),
each fixing mechanism (4) comprises a fixing plate (41), two vertical positioning holes (42) and vertical square holes (43) are formed in each fixing plate (41), four upper pipes (34) are respectively fixed in the four positioning holes (42), movable plates (44) are movably connected in each square hole (43), arc-shaped grooves (45) are formed in two sides of each fixing plate (41), extrusion plates (46) are fixedly connected to two sides of each fixing plate (41) through threaded rods, fixing holes (47) are formed in two sides of each fixing plate (41), and the fixing holes (47) are communicated with the square holes (43),
a bottom plate (48) is fixedly connected to the outer side of each fixing plate (41), square grooves (49) are formed in each bottom plate (48),
the transverse truss (5) comprises two left pipes (51), the left ends of the two left pipes (51) are respectively fixed in two arc-shaped grooves (45) of a left fixing plate (41), the right ends of the two left pipes (51) are respectively connected with left threaded sleeves (52) in a threaded manner, the right ends of the two left threaded sleeves (52) are respectively connected with right threaded sleeves (53) in a fixed manner, the right ends of the two right threaded sleeves (53) are respectively connected with right pipes (54) in a fixed manner, the right ends of the two right pipes (54) are respectively and fixedly connected in two arc-shaped grooves (45) of the right fixing plate (41), the size and shape of the left pipes (51) are the same as those of the right pipes (54),
the calibration table (6) comprises a supporting plate (61), a square hole is formed in the middle of the supporting plate (61), an instrument (62) is fixedly connected to one side, away from the transverse truss (5), of the supporting plate (61), a clamping block (63) is fixedly connected to one end, close to the transverse truss (5), of the supporting plate (61), a groove (64) and a threaded hole are formed in the clamping block (63), the threaded hole is communicated with the groove (64), a threaded rod is connected to the internal threads of the threaded hole, and the size and the shape of the groove (64) are identical to those of the right tube (54); and
one end fixedly connected with cardboard (65) that backup pad (61) is close to horizontal truss (5), one side fixedly connected with bearing frame one (66) and bearing frame two (611) that cardboard (65) were kept away from to backup pad (61), the inside of bearing frame one (66) is connected with pivot one (67) through the bearing rotation, the inside of bearing frame two (611) is connected with pivot two (612) through the bearing rotation, one side that pivot one (67) corresponds with pivot two (612) is fixedly connected with plectane one (68) and plectane two (613) respectively, through table cylinder (614) fixedly connected with between plectane one (68) and plectane two (613), and the outside of table cylinder (614) is attached to the design target, one side fixedly connected with direct current motor (69) that plectane one (68) were kept away from to bearing frame one (66), the outside of direct current motor (69) is provided with protective housing (610).
2. A method for calibrating TFDS, TVDS and TEDS rail side imaging, which adopts the calibration device as set forth in claim 1, comprising the steps of:
1) Placing a calibration device on a rail, and then primarily pushing a calibration table (6) frame to the upper part of the imaging equipment by a roller below the calibration device;
2) Opening the laser indicator (13), and moving the calibration device to enable the light beam of the laser indicator (13) to be aligned with the middle point of the aperture of the imaging device;
3) Stabilizing the calibration device, enabling the magnet to move downwards to the upper surface of the guide rail, enabling the magnet to be attracted with the steel rail, and firmly fixing the calibration device on the steel rail by utilizing the magnets on the left lower seat (11) and the right lower seat (21);
4) The calibration table (6) is taken and placed on the rod of the transverse truss (5) of the calibration device, and a semicircular arc groove (64) of the calibration table (6) is clamped on the rod of the transverse truss (5) of the calibration device;
5) Manually moving the calibration table (6) to the position right above the imaging equipment to be calibrated, switching on a power supply to supply power to a power source, wherein the power source drives the meter roller (614) to rotate so as to realize the dot matrix imaging requirement, and switching on the camera imaging to be calibrated to finish the calibration of the imaging equipment on the inner side of the rail;
6) Hanging the calibration table (6) on the outer side of the fixing mechanism (4), clamping a semicircular groove (64) under the calibration table (6) on a vertical rod of the vertical truss (3), hanging a clamping block (63) under the calibration table (6) into a square groove (49) in the fixing mechanism (4), moving the transverse truss (5) up and down to a required position, rotating a meter roller (614), opening a camera to be calibrated for imaging, and completing calibration of imaging equipment on the outer side of a rail;
7) According to the optimal focal length requirement of the imaging equipment, the transverse truss (5) of the calibration device is adjusted to move up and down along the vertical truss (3) so as to drive the calibration table (6) to adjust in the height direction.
CN201910783677.XA 2019-08-23 2019-08-23 Calibrating device for TFDS, TVDS and TEDS system rail side imaging device Active CN110458899B (en)

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CN104851088A (en) * 2015-04-27 2015-08-19 长安大学 Calibration equipment and calibration method for linear array camera of high-speed rail detection system
WO2017197369A1 (en) * 2016-05-12 2017-11-16 Cognex Corporation Calibration for vision system
CN108061225A (en) * 2017-12-13 2018-05-22 北京京天威科技发展有限公司 A kind of rail side is imaged caliberating device
CN208999562U (en) * 2018-11-02 2019-06-18 赵波 A kind of trailer-mounted radar calibration facility
CN210804519U (en) * 2019-08-23 2020-06-19 北京京天威科技发展有限公司 Calibration device of rail edge imaging device

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Publication number Priority date Publication date Assignee Title
CN104851088A (en) * 2015-04-27 2015-08-19 长安大学 Calibration equipment and calibration method for linear array camera of high-speed rail detection system
WO2017197369A1 (en) * 2016-05-12 2017-11-16 Cognex Corporation Calibration for vision system
CN108061225A (en) * 2017-12-13 2018-05-22 北京京天威科技发展有限公司 A kind of rail side is imaged caliberating device
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CN210804519U (en) * 2019-08-23 2020-06-19 北京京天威科技发展有限公司 Calibration device of rail edge imaging device

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