WO2024033933A1 - Système de surveillance de voies autonome - Google Patents
Système de surveillance de voies autonome Download PDFInfo
- Publication number
- WO2024033933A1 WO2024033933A1 PCT/IN2023/050326 IN2023050326W WO2024033933A1 WO 2024033933 A1 WO2024033933 A1 WO 2024033933A1 IN 2023050326 W IN2023050326 W IN 2023050326W WO 2024033933 A1 WO2024033933 A1 WO 2024033933A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chassis
- track
- linear actuators
- wheel assembly
- tracks
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000007689 inspection Methods 0.000 claims description 11
- 239000004575 stone Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/045—Rail wear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/08—Railway inspection trolleys
- B61D15/12—Railway inspection trolleys power propelled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/047—Track or rail movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/048—Road bed changes, e.g. road bed erosion
Definitions
- the present invention relates to a field track monitoring system and more, particularly, the present invention relates to autonomous track monitoring system, especially for railway track monitoring.
- the Indian railway network today has a track length of 113,617 km (70,598 miles), over a route of 63,974 km (39,752 miles) and 7,083 stations.
- India has fourth largest railway network in the world exceeded only by those of the United States, Russia and China.
- the US 10029708 patent discloses a railroad scout vehicle system which includes a scout vehicle and a processing unit.
- the scout vehicle may include at least two wheels configured to engage a set of railroad tracks, a motor mechanically coupled to at least one of the wheels, a speed controller, an electromagnetic sensor aimed at the set of railroad tracks, a positioning receiver, a local speed sensing device and a transceiver.
- the speed controller may be coupled to the motor and configured to control the speed of the scout vehicle in order to maintain an appropriate distance between the scout vehicle and a train traveling behind.
- the processing unit may be configured to transmit the track status information via the transceiver, receive train speed and position signals from the train via the transceiver.
- the device for railway track monitoring of the above US Patent sends signal to locopilot who is driving the train on the same track if there is any defect in the track so that the locopilot can stop the train and thus avoids accident.
- the device mentioned in the prior art patent has to be removed from the track if the train is running on the same track on which the track monitoring device is and if there is no damage/defect in the track. This is the major drawback of the device of prior art which halts the regular running of the train if the tracks are normal and thus renders the device for monitoring the tracks not useful.
- An object of the present invention is to avoid to manual search of the defects for track maintenance. Another object of the present invention is to avoid trains halts while the track monitoring is in process.
- Another object of the present invention is to reduce cost of inspection for maintenance significantly.
- Yet another object of the present invention is to collect data of frequently failed rail track location with type of failures.
- the present invention provides an autonomous track monitoring system (100) for inspection of railway tracks (50) and the like.
- the autonomous track monitoring system (100) comprises a chassis (10) having a front side (A), a rear side (B), a first side (C) and a second side (D) and a sensor assembly configured on the chassis (10).
- the sensor assembly comprises at least one image capturing unit (14) configured centrally on the front portion (A) and the rear portion (B) of the chassis (10), at least two depth sensors (16) configured on either side of the front portion (A), and the rear portion (B) of the chassis (10), a vibration sensor operatively coupled to the horizontal linear actuator (22) and the vertical linear actuator (28) and a foldable image capturing unit (18) configured on the wheel assembly on either side for inspection of external side of the track;
- the system further comprises at least one horizontal linear actuators (22) configured within the first side and the second side of the chassis (10), and a wheel assembly (20) attached to each horizontal linear actuators (20).
- the wheel assembly (20) is capable of being retracted and expanded through horizontal linear actuators (22) and the wheel assembly (20) is configured to sit on the track when in expanded position.
- the system furthermore comprises at least four vertical linear actuators (28) configured below the chassis (10) for lifting and lowering the chassis (10), a communication means configured on the chassis;, a microcontroller for controlling the sensor assembly and a power source for powering the microcontroller, and the sensor assembly.
- Figure 1 represents an isometric view of autonomous track monitoring system, in accordance with the present invention
- Figure 2 represents a side view of the autonomous track monitoring system of figure 1;
- Figure 3 represents an isometric view of the autonomous track monitoring system after gaining maximum height
- Figure 4 represents a side view of the autonomous track monitoring system when is lifted at its maximum height, its maximum height with fully stretched foldable arm position, its maximum height with fully stretched foldable arm position and when resting on the rails using its wheels with the fully stretched foldable arm;
- FIG. 5 shows a flowchart of working of the autonomous track monitoring system, in accordance with the present invention.
- an autonomous track monitoring system (100) (hereinafter 'the system (100)') in accordance with the present invention.
- the system (100) of the present invention provides unmanned robotic vehicle, which can run on the railway tracks and inspect the tracks for any irregularities, hindrances, cracks, stone density, deviation, angle of banking of tracks, encroachments and the likes.
- the track (50) referred herein is railway track (50).
- the system (100) comprises a chassis (10), a sensor assembly configured on the chassis (10), at least two linear actuators (22), at least two wheel assembly (20), at least four vertical linear actuators (28), a microcontroller (34), a communication means, and a power source (32) for powering the microcontroller (34), and the sensor assembly.
- FIG 1 shows the chassis (10).
- the chassis (10) may be configured in a rectangular shape or hexagonal shape and includes a front side (A), a rear side (B), a first side (C) and a second side (D).
- the chassis (10) is covered by a cover (12) so as to form cabin like structure.
- the chassis (10) includes at least one head lights (12a) configured on front side (A) and rear side (B).
- the chassis (10) is developed in such a way that it can take the load of self-retracting system and other electronic instruments needed for inspection.
- the chassis (10) is made of aluminum, steel and the like.
- the sensor assembly is configured on the chassis (10).
- the sensor assembly comprises at least one image capturing unit (14) configured centrally on the front portion (A) and the rear portion (B) of the chassis (10) so that system (100) can work in both direction i.e. forward and reverse direction.
- the least one image capturing unit (14) is camera.
- the sensor assembly further comprises at least two depth sensors (16) configured on either side of the front portion (A), or the rear portion (B) of the chassis.
- the images captured by the camera (14) and the depth sensors (16) gives most factual results to the microcontroller (34) when used in combination.
- the depth sensors (16) act like complimentary to the camera (14).
- the sensor assembly furthermore comprises a foldable image capturing unit (18), for example, a camera configured on a wheel assembly (20) on either side for inspection of external side of the track.
- a foldable image capturing unit (18) for example, a camera configured on a wheel assembly (20) on either side for inspection of external side of the track.
- the folding of the mounting unit of the foldable camera (18) is done to reduce stroke length of both horizontal and vertical linear actuator, which eventually reduces overall size of robot which helps robot to hide in between tracks (50) while train passes over it.
- the folding of the folding camera (18) is done by two rotary actuators (26) mounted on wheel assembly (20).
- Each horizontal linear actuator of the two horizontal linear actuators (22) is configured within the first side (C) and the second side (D) of the chassis (10).
- the wheel assembly (20) is attached to each horizontal linear actuator (22).
- the wheel assembly (20) is capable of being retracted and expanded through the horizontal linear actuators (22).
- the linear actuators (22) are operated by electro-mechanical switches (22a).
- the microcontroller (34) gives signal to open or close to individual electro-mechanical switches (22a) of respective linear actuators (22), then these switches operate the linear actuator (22). These electro mechanical switches are part of the main PCB.
- each wheel assembly (20) has two wheels (24) powered by two rotary actuators (26).
- the rotary actuator (26) is a two way rotary actuator so that the system (100) can inspect tracks (50) in both reverse and forward direction. These rotary actuators control the speed and direction of the robot on the track (50).
- the microcontroller (34) gives signal for forward movement or reverse movement to individual electro-mechanical switches of respective rotary actuators (26), and then these electro-mechanical switches operate the rotary actuators (26). These electro mechanical switches are part of main PCB.
- the wheel assembly (20) has collar from inside to keep wheels on the track (50) just like railway wheels. Specifically, the wheel assembly (20) is configured to sit on the track (50) when in expanded position by means of horizontal linear actuator (22).
- the horizontal linear actuator (22) provides self-retracting mechanism to retract the system (100) from the track (50). Specifically, the system (100) hides itself under the rail height at the center of rails, so that the train can pass over it without needing to be taken out.
- the four vertical linear actuators (28) are configured below the chassis (10) lifting and lowering the chassis (10) as and when required.
- the system (100) includes a vibration sensor (not shown) configured on the chassis (10) and coupled operatively to the horizontal linear actuator (22) and the four vertical linear actuators (28).
- the vibration sensor senses the vibration in the rail track (50) caused due to upcoming train.
- the vibration sensor actuates the vertical linear actuator (28) to lift the entire chassis (10) so that the wheel assembly (20) is above the track (50) and then the horizontal linear actuator (22) retracts so that the wheel assembly (20) is at the center of the chassis.
- the vertical linear actuator (28) then again unlifts the entire chassis (10) so that train can pass over the system (100).
- the system (100) get lifted itself by vertical linear actuators (28) and the wheel assembly (20) is pushed away from the centre of the chassis (10) to get the wheels on the track.
- the communication means is configured on the chassis (10).
- the communication means is at least one foldable antenna (30) configured over the chassis (10) for seamless communication using internet or similar communication means.
- the communication means send the collected data from the sensors and cameras to the master computer on a cloud server.
- the master computer processes the data and gives the results in terms of type of failure and its magnitude with the exact location of the track (50)
- the microcontroller (34) controls the sensor assembly and a power source such as battery (32) for powering the microcontroller (34), the sensor assembly and other electronics of the system (100).
- a power source such as battery (32) for powering the microcontroller (34), the sensor assembly and other electronics of the system (100).
- FIG. 5 shows a flowchart of working of the autonomous track monitoring system (100) in accordance with the present invention.
- the system (100) is placed in rest position in between the tracks (50) supported by the vertical linear actuators (28) on the track block (52).
- the system (100) is lifted by the vertical linear actuators (28) supported on the track blocks (52). Then the system (100) extends the wheels assembly (20) using the horizontal linear actuators (22) over the track (50) wherein the system (100) is supported by vertical linear actuators (28) on the track blocks (52).
- the system (100) then unfold its communication antenna (30) and the external camera (18), wherein the system (100) is still supported by vertical linear actuators (28) on the track blocks (52).
- system (100) is supported by vertical linear actuators (28) on the track blocks (52) and also supported on the tracks (50) through the wheels assembly (20) as the wheels assembly (20) is expanded by means of horizontal linear actuator (22). Now, the system (100) is ready to move on the track (16).
- the system (100) can sense upcoming the train on the track (50) and can retract itself to the center of track (50), so that trains don’t need to stop and passes over the system (100).
- the system (100) of the present invention is capable of performing following operations
- the system (100) detects any fracture or any crack in the track (50).
- the system (100) detects any kink or misalignment or dip in track (50).
- the system (100) detects foreign elements on or off the tracks (50) which may affect transportation.
- the system (100) detects any missing parts like fishplates, fish bolts and elastic rail clip or other missing parts in track (50).
- the system (100) detects position of elastic rail clips.
- the system (100) detects abnormalities at rail crossings.
- the system (100) detects overflow of water, stagnation of water near track.
- the system (100) detects condition of height gauges near crossings. 9. The system (100) immediately reports unsafe track condition to respective authority.
- the system (100) raises an e alarm and stop the train or permit the train movement at reduced speed as per situations requirement.
- the system (100) has ability to detect health of power transmission wire of electric train.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
L'invention divulgue un système de surveillance de voies autonome (100). Le système (100) selon la présente invention fournit un véhicule robotisé sans pilote, qui peut circuler sur les voies ferrées et inspecter les voies en ce qui concerne des conditions quelconques parmi des irrégularités, des gênes, des fissures, une densité de pierres, un écart, un angle de dévers de voies, des empiètements, et analogues. Le système (100) comprend un châssis (10), un ensemble capteur conçu sur le châssis (10), au moins deux actionneurs linéaires (22), au moins deux ensembles roues (20), au moins quatre actionneurs linéaires verticaux (28), un microcontrôleur, un moyen de communication et une source d'alimentation servant à alimenter le microcontrôleur et l'ensemble capteur. Le système (100) peut détecter l'arrivée du train sur la voie (50) et peut se retirer au centre de la voie (50), de sorte que les trains n'ont pas besoin de s'arrêter et qu'ils passent au-dessus du système (100).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN202221045601 | 2022-08-10 | ||
IN202221045601 | 2022-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2024033933A1 true WO2024033933A1 (fr) | 2024-02-15 |
Family
ID=89851124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IN2023/050326 WO2024033933A1 (fr) | 2022-08-10 | 2023-04-03 | Système de surveillance de voies autonome |
Country Status (1)
Country | Link |
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WO (1) | WO2024033933A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160002865A1 (en) * | 2014-07-07 | 2016-01-07 | Rail Pod Incorporated | Automated track inspection system |
US20190161095A1 (en) * | 2017-11-29 | 2019-05-30 | Sperry Rail Holdings, Inc. | System and method for inspecting a rail |
-
2023
- 2023-04-03 WO PCT/IN2023/050326 patent/WO2024033933A1/fr unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160002865A1 (en) * | 2014-07-07 | 2016-01-07 | Rail Pod Incorporated | Automated track inspection system |
US20190161095A1 (en) * | 2017-11-29 | 2019-05-30 | Sperry Rail Holdings, Inc. | System and method for inspecting a rail |
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