EP4208382A1 - Verfahren zum betrieb eines schienenfahrzeugs sowie schienenfahrzeug - Google Patents
Verfahren zum betrieb eines schienenfahrzeugs sowie schienenfahrzeugInfo
- Publication number
- EP4208382A1 EP4208382A1 EP21773001.9A EP21773001A EP4208382A1 EP 4208382 A1 EP4208382 A1 EP 4208382A1 EP 21773001 A EP21773001 A EP 21773001A EP 4208382 A1 EP4208382 A1 EP 4208382A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail vehicle
- tunnel
- image
- exit
- detected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0058—On-board optimisation of vehicle or vehicle train operation
-
- 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
-
- 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
- B61L23/041—Obstacle detection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0072—On-board train data handling
Definitions
- the invention relates to a method for operating a rail vehicle and a rail vehicle.
- a method for detecting a tunnel entrance or a tunnel exit of a rail vehicle is also described.
- a rail vehicle drives into or out of a tunnel during its journey, this usually leads to a very rapid change in environmental parameters, e.g. air temperature, air humidity and ambient pressure.
- environmental parameters e.g. air temperature, air humidity and ambient pressure.
- a pressure change can occur when the rail vehicle strikes the air arranged in the tunnel. The intensity of these changes depends on the speed of the rail vehicle.
- the change can also affect a pantograph of the rail vehicle, in particular the contact made between the pantograph and an overhead line.
- the pantograph can lose contact due to the pressure change. This in turn can lead to undesired arcing.
- Air conditioning systems of the rail vehicle should be equipped with valves that close air inlets when the pressure wave hits the rail vehicle.
- EP 3 528 009 A1 discloses a system and a method for detecting a tunnel for motor vehicles.
- the publication describes that the detection of a tunnel by a detection system comprising cameras in the vehicle is known.
- the teaching of this document relates to the Detection of the tunnel when the vehicle is already in the tunnel.
- the technical problem arises of creating a method for operating a rail vehicle and a rail vehicle that enable reliable and early detection and thus enable operational safety and/or improved driving comfort.
- a method for operating a rail vehicle is proposed.
- the method can include a detection of a tunnel entrance or a tunnel exit of a rail vehicle.
- a tunnel can refer to an underground structure that, for example, allows obstacles such as mountains, bodies of water or other traffic routes to be crossed.
- a spatial region in front of the rail vehicle in the direction of travel is imaged in at least one image.
- This image is generated by at least one image acquisition device.
- the image capturing device can be an image capturing device of the rail vehicle and can thus be arranged, for example, in or on the rail vehicle.
- An image acquisition device can be a camera, in particular a CCD or CMOS camera. Of course, other embodiments of an image acquisition device are also conceivable, which are explained in more detail below in exemplary embodiments.
- An image acquisition device can be a black-and-white camera, a camera for generating depth images, an infrared camera, in particular a short-wave infrared camera, a lidar sensor or a radar sensor for generating two- or three-dimensional images.
- the image capturing device is arranged in/on the rail vehicle in such a way that a capturing area encompasses the spatial area in front of the rail vehicle in the direction of travel.
- the at least one image capturing device can be part of a set of sensors that includes exactly one or more than one image capturing device. If the set of sensors includes more than one image capturing device, then the spatial area can be imaged by selected, but not all, or all image capturing devices of the sensor set. In this case, several images can then be generated.
- an image acquisition device in the sense of this invention designates a device or a sensor that generates a two-dimensional or three-dimensional representation of an environment, this representation designating an image.
- information about objects in the detection area of the image capturing device can be encoded in an image generated by the image capturing device, in particular topographical information or information about a shape and/or a size of such objects.
- the image capture device generates an image of objects in the capture area of the image capture device.
- An image can be a two-dimensional image. As explained in more detail below, a three- or four-dimensional image can also be generated by one or more image acquisition devices.
- the presence of a tunnel entrance or a tunnel exit is detected by evaluating the at least one image before the rail vehicle enters the tunnel or before the rail vehicle exits the tunnel.
- an image can be generated during the trip before entering the tunnel, with the entrance to the tunnel being imaged in the image.
- Methods of image processing and evaluation known to those skilled in the art can be used to detect the entrance or exit of the tunnel in such an image.
- Such methods can, for example, segmentation methods, pattern recognition methods, filter methods and other methods for processing or a combination of several such methods.
- an output signal can be generated which represents the presence of the tunnel entrance or the tunnel exit. If no presence of a tunnel entrance or exit is detected in the at least one image, no output signal or an output signal which represents the lack of presence can be generated.
- This output signal can then be used to control (rail vehicle) systems, as will be explained in more detail below.
- a current distance between the rail vehicle and the tunnel entrance or tunnel exit is determined.
- This distance can also be determined by evaluating the at least one image.
- a person skilled in the art can use suitable methods of image processing and evaluation.
- the distance can only be determined if the presence of a tunnel entrance or exit has been detected.
- the distance determination can be started when a corresponding output signal was generated during or after the evaluation of the at least one image.
- the output signal can be a start signal for the distance determination.
- a device for determining distance can be used that does not evaluate the at least one image of the image acquisition device to determine the distance.
- Such devices for distance determination are known to the person skilled in the art and can, for example, enable an ultrasound-based determination or a distance determination using other physical measurement principles for the distance determination.
- a distance signal can be generated which represents the value of the distance.
- Rail vehicle can also be controlled depending on this distance.
- a distance-specific control or distance-interval-specific control of the operation can then take place.
- control adapted to the changing environmental parameters due to the tunnel entrance or exit in good time, in particular at a predetermined time interval before reaching the tunnel entrance or exit, which can ensure that the changed control takes place in good time before it is reached . It can also be ensured that control adapted to the current environmental parameters continues to take place for as long as possible. In this case, the control adapted to the changing environmental parameters not immediately after detection of the presence but only at a point in time that depends on the time it takes to reach the tunnel entrance or exit.
- an air duct which can be part of an air conditioning system of the rail vehicle, which can also be referred to as an air conditioning system, for as long as possible before entering a tunnel in an open state or as long as possible before exiting to leave a tunnel in a closed state and then to change the corresponding state in good time before entering or exiting, i.e. to close or open the air duct by actuating the valve.
- the control signal can be generated 3.1 seconds before reaching the tunnel entrance, assuming that the transmission time to the valve takes 100 ms and the closing of the valve takes 3 seconds. If the vehicle speed is 200 km/h, the corresponding control signal must be generated 166.6 m before entering the tunnel.
- a minimum time value and a maximum time value and a maximum time value of the time interval can be selected depending on the system and/or application.
- the distance is determined by evaluating the at least one image. This has already been explained above. This results in an advantageous manner in that two pieces of information, namely information about the presence and information about the distance, can be generated by evaluating the at least one image, which in turn enables a cost-effective and space-saving design of a device for carrying out the method. since, in particular, no separate device for determining the distance has to be provided.
- an image of a spatial area in front of the rail vehicle in the direction of travel is captured by a plurality of image capturing devices, with the presence of the tunnel entrance or tunnel exit being determined before the rail vehicle enters the tunnel or before the rail vehicle exits by evaluating the images the tunnel is detected.
- the rail vehicle can include a plurality of image capturing devices that are arranged in or on the rail vehicle.
- the multiple Image detection devices can each be a detection device of a set of sensors. Capturing areas of these image capturing devices can overlap, with the overlapping area in particular also including the area in front of the rail vehicle in the direction of travel.
- These multiple image capturing devices can be image capturing devices of the same type, i.e. these image capturing devices generate an image based on the same measurement principle.
- the rail vehicle can include multiple cameras, e.g. CMOS or CCD cameras.
- the image capturing devices can also include a plurality of image capturing devices of different types. This can mean that two image capturing devices that are different from one another each generate an image on the basis of physical measurement principles that are different from one another.
- a first image capturing device can be a camera, with a further image capturing device being a lidar or radar sensor for generating a two-dimensional or three-dimensional image.
- each image is evaluated separately and the presence of the tunnel entrance or exit is checked for each image. Then the presence of the tunnel entrance or exit can be detected if it is detected in more than a predetermined percentage of all images. If the tunnel entrance or exit is not detected in this predetermined percentage of images, then no presence of such entrance or exit is detected.
- the images generated by the image acquisition devices are merged, with the presence of the tunnel entrance or the tunnel exit being detected by evaluating the merged image.
- the person skilled in the art can use suitable methods for fusing images.
- the computing effort for detecting the entrance or exit of the tunnel can be reduced, in particular when the merging requires less computing effort than the evaluation of a large number of images.
- the reliability of the detection is advantageously increased.
- At least one of the image capturing devices is a CMOS or CCD camera and at least one further image capturing device is a lidar or radar sensor, which can generate a two-dimensional or three-dimensional image.
- two or more than two of the multiple image capturing devices are the image capturing devices of a stereo camera system.
- the rail vehicle it is possible for the rail vehicle to have two or more than two image capturing devices, with at least two or exactly two of these image capturing devices being part of a stereo camera system.
- the image generated by the stereo camera system in particular the three-dimensional image generated with this stereo camera system, to be merged with a two-dimensional image of at least one further image acquisition device.
- This can therefore mean that before the merging, a three-dimensional image is generated from the two-dimensional images of the image acquisition device of the stereo camera system, which image is then fused with at least one other image.
- the three-dimensional image generated by the stereo camera system can be evaluated in order to detect the presence of a tunnel entrance or exit.
- the three-dimensional image generated in this way can designate the image of the at least one image acquisition device.
- the tunnel entrance or the tunnel exit are detected by methods for shape recognition or by methods of machine learning. Corresponding methods are known to the person skilled in the art. This advantageously results in reliable detection, in particular for different light conditions.
- a preferred method of machine learning is the use of a neural network, which is trained in advance to detect the presence of a tunnel entrance or exit in one or more images.
- a method for operating a rail vehicle is proposed.
- a spatial area in the direction of travel in front of the rail vehicle is mapped into at least one image by at least one image acquisition device, with at least one control signal for at least one rail vehicle system being generated if there is a tunnel entrance before the rail vehicle enters a tunnel or before the exit of the rail vehicle from the tunnel, the presence of a tunnel exit is detected with a method for detecting a tunnel entrance or a tunnel exit according to one of the embodiments described in this disclosure.
- control signal can likewise be generated in time before entry or in time before exit.
- a rail vehicle system can in particular be a driver assistance system of the rail vehicle, in particular for setting driving dynamics properties or parameters such as a speed.
- a rail vehicle system can also be a system that does not have driving-dynamic properties or parameters of the rail vehicle, for example properties of a passenger compartment of the rail vehicle, such as a temperature or a Lighting state, set.
- the rail vehicle system can include at least one control device that is arranged in or on the rail vehicle.
- the rail vehicle system can include at least one actuator, which is also arranged in or on the rail vehicle. This actuator can be controlled by the control device, for example.
- the control signal can be from a
- Evaluation device are generated, which evaluates the at least one image. Furthermore, the control signal can be transmitted to the rail vehicle system, in particular the control device of this rail vehicle system.
- the corresponding devices can be connected in terms of data and/or signals, for example via a bus system.
- control signal in addition to information about the presence of a tunnel entrance or exit, also includes information about a distance to the tunnel entrance or tunnel exit.
- the distance can also be determined--as explained above.
- the rail vehicle system is a pantograph control system or an air conditioning system of the rail vehicle.
- the rail vehicle system can also be a ventilation system of the rail vehicle.
- the air conditioning or ventilation system can include at least one air duct that connects an interior of the rail vehicle with an external environment or is part of such a connection. Furthermore, the system can include at least one valve and/or at least one flap, through which this air duct can be placed in an open or closed state.
- an opening state of the air duct can be adjustable. In particular, a closed state in which the interior is not fluidly connected via the air duct with the outside environment, or an open state in which the interior via the Air duct is fluidly connected to the outside environment can be adjusted. Intermediate states can also be set.
- the rail vehicle in particular the system, can include a suitable adjustment means.
- the opening state of the air duct can then be set to a predetermined state, e.g. the at least one air duct can be set to an open or closed state, e.g. by a corresponding activation of the valve. This can mean that the opening state is changed if it does not correspond to the predetermined state.
- the opening state of the air duct can be set or shifted to a tunnel entrance-specific state, in particular to the closed state, in particular after a predetermined or speed-dependent period of time after the time of detection.
- the air duct can be put into a tunnel exit-specific state, e.g. a closed state or an open state, in particular after a predetermined or speed-dependent time period after the time of detection.
- the speed-dependent period of time can be determined as explained below in relation to the pressing force, in particular based on assignment or based on distance.
- a point in time for opening or closing is determined as a function of the distance and possibly a vehicle speed, and then for the air duct to be opened or closed at this corresponding point in time.
- the opening state set as described for passing or when passing is changed again.
- the closed state set for passing or while passing can be changed back to an open state. It is thus possible for the closed state set for passing or when passing through a tunnel entrance, which prevents the pressure surge caused by the tunnel from being felt and/or heard in the interior, to be changed back to an open state before the tunnel exit is reached. Then this can be closed again for passing or when passing the tunnel exit state.
- the renewed change in the state set after passing through the tunnel entrance or the tunnel exit can take place in particular after a predetermined or speed-dependent period of time. In this case, the change can take place at a predetermined speed, ie rapid or slow opening or closing can take place.
- the rate of change when changing the state set after passing the tunnel exit can be higher, but preferably lower, than the rate of change when changing the state set after passing the tunnel entrance again.
- the opening state can be set as a function of pressure, in particular as a function of a pressure change.
- the pressure can in particular be an external pressure in the surroundings, in particular on an external wall, of the rail vehicle or an internal pressure in the interior of the rail vehicle.
- a closed state can be set if the pressure or the pressure change is greater than a predetermined threshold value.
- the external pressure can be higher than when driving outside of a tunnel.
- the opening state can be set as a function of a carbon dioxide concentration in the interior of the rail vehicle.
- This concentration can be detected, for example, by at least one sensor.
- an open or partially open state may be set when the concentration is higher than a predetermined threshold.
- a pressing force with which the pantograph is pressed onto an overhead line can be changed if the presence of the tunnel entrance or a tunnel exit is detected, the contact pressure being able to be changed, for example, after a predetermined or speed-dependent time period after the time of detection, in particular to a predetermined or speed-dependent value.
- the pressing force can be increased, in particular when the presence of a tunnel entrance is detected.
- the pressing force is reduced, in particular when the presence of a tunnel entrance is detected.
- the change can take place in accordance with a change profile, with this profile being able to predetermine a period of time for the change and a change in the pressing force over time.
- the speed-dependent time period can be determined, for example, based on a previously known association of speeds with time periods, the time period being determined as the time period associated with the current speed.
- the current speed can be determined here, e.g. by a speed sensor of the rail vehicle or as a function of output signals from other sensors, in particular by evaluating images.
- the speed-dependent period of time can be determined by determining a distance between the rail vehicle and the tunnel entrance and determining the period of time until the tunnel entrance is reached as a function of the distance and a vehicle speed. The speed-dependent period of time can then correspond to this period of time until it is reached or be less than this period of time by a predetermined amount.
- the contact pressure changed, in particular increased, for a tunnel entrance can be changed again, in particular reduced, upon detection of the presence of a tunnel exit, in particular—according to the explanations above—after a predetermined or speed-dependent period of time.
- the contact pressure can be changed back to the value that was set before the tunnel entrance was reached.
- the pressing force can also be set to a predetermined or speed-dependent value to be changed.
- a point in time at which the contact pressure force is reduced is determined as a function of the distance and is then only changed at this point in time.
- a contact pressure force that has been changed for entering or exiting a tunnel is reduced again after entering the tunnel, i.e. independently of the detection of the presence of a tunnel exit, or after exiting the tunnel, e.g. immediately after entering or exiting the tunnel. Exit or a predetermined period of time after entry or exit.
- a rail vehicle comprising at least one image acquisition device and at least one evaluation device.
- This evaluation device can be embodied as a microcontroller or an integrated circuit or can include one(s).
- a spatial region in front of the rail vehicle in the direction of travel can be imaged in at least one image by the at least one image capturing device.
- the presence of a tunnel entrance or tunnel exit can be detected before the rail vehicle enters the tunnel or before the rail vehicle exits the tunnel.
- the rail vehicle is thus configured in such a way that a method for detecting a tunnel entrance or a tunnel exit according to one of the embodiments described in this disclosure can be carried out by the rail vehicle with the corresponding technical advantages.
- the rail vehicle prefferably has a control device for generating a control signal depending on the detection of the presence of a tunnel entrance or a tunnel exit.
- Rail vehicle configured to carry out a method for operating a rail vehicle according to one of the embodiments disclosed in this invention with the corresponding technical advantages.
- At least one control signal for at least one rail vehicle system can be generated if the presence of a tunnel entrance is detected before the rail vehicle enters a tunnel or the presence of a tunnel exit is detected before the rail vehicle leaves the tunnel, the rail vehicle system being a pantograph control system of the rail vehicle and a pressing force with which the pantograph is pressed against an overhead line is changed, in particular increased, after a speed-dependent period of time after a detection time if the presence of the tunnel entrance is detected, or wherein the rail vehicle system is an air conditioning system or a ventilation system of the rail vehicle which comprises at least one air duct, with an opening state of the air duct after a speed-dependent period of time after the time of detection to a predetermined state, in particular a g closed state, when the presence of the tunnel entrance is detected.
- the pressing force with which the pantograph is pressed against an overhead line can also be changed, in particular reduced, after a speed-dependent period of time after a detection time when the presence of the tunnel exit is detected.
- the opening state of the air duct can be set to a predetermined state, in particular a closed state, after a speed-dependent period of time after the time of detection, if the presence of the tunnel exit is detected.
- the rail vehicle can comprise a number of image acquisition devices.
- the rail vehicle can also comprise at least one controllable device which can be controlled by a control signal generated as explained above.
- the rail vehicle can include at least one controllable valve, which can be set to an open or closed state by a control signal generated as explained above, wherein an air duct, for example, can be blocked by the valve in the closed state and can be opened in the open state.
- the controllable device can also be a light source include or be designed as such.
- the controllable device can be part of a rail vehicle system.
- the rail vehicle can also include a controllable pantograph, with a pressing force of the pantograph on an overhead line being adjustable.
- the distance of the rail vehicle from the tunnel entrance or the tunnel exit can also be determined by the evaluation device, a further evaluation device of the rail vehicle, and the control signal, e.g. a point in time at which the control signal was generated, is then generated as a function of the distance.
- the rail vehicle includes a device for determining a speed of the rail vehicle, in which case the control signal, e.g. a point in time at which the control signal was generated, can also be generated as a function of the current speed.
- the rail vehicle can comprise at least one of the rail vehicle systems explained above. These can be controlled depending on the presence and possibly the distance and further possibly the speed.
- FIG. 1 shows a schematic diagram of a rail vehicle according to the invention
- FIG. 2a shows a schematic flow chart of a method for detecting a tunnel entrance or a tunnel exit
- FIG. 2b shows a schematic flow chart of a method according to the invention for operating a rail vehicle
- 3a shows a schematic diagram of a set of sensors in a first embodiment
- 3b shows a schematic diagram of a set of sensors according to a further embodiment
- 3c shows a schematic diagram of a set of sensors according to a further embodiment.
- FIG. 1 shows a schematic diagram of a rail vehicle 1 which is configured to detect a method for detecting a tunnel entrance TE or a tunnel exit (not shown) of the rail vehicle 1 .
- FIG. 1 also shows that a tunnel T with a tunnel entrance TE is arranged in front of the rail vehicle 1 in the direction of travel 5 .
- a distance D between the rail vehicle and the tunnel entrance TE is also shown.
- the rail vehicle comprises a set of sensors 2 with at least one or exactly one image acquisition device 3 (see Fig. 3a) and a control and evaluation device 4 which, in terms of data and/or signals, is connected to the sensors 3, 3a, 3b, 3c (see Fig. 3a, 3b, 3c) of the sensor set 2 is connected.
- a detection area EB of the image detection device(s) 3, 3a, 3b, 3c of the sensor set 2 is shown, which - in an embodiment with several image detection device(s) 3, 3a, 3b, 3c - in particular a common detection area EB of all image detection devices 3, 3a , 3b, 3c.
- a direction of travel of the rail vehicle 1 is represented by an arrow 5 . It can thus be seen from FIG. 1 that a spatial area in the direction of travel 5 in front of the rail vehicle 1 can be imaged by the image acquisition devices 3 , 3a , 3b , 3c of the sensor set 2 .
- the control and evaluation device 4 can then evaluate the at least one image A (see FIG. 2a) in order to detect a tunnel entrance TE in the at least one image A.
- Known methods of image processing and evaluation can be used for this purpose are applied, in particular methods for shape recognition and/or methods of machine learning, preferably neural networks, are used.
- pantograph 6 of the rail vehicle and a device 7 for setting a contact pressure force of the pantograph 6 on an overhead line 8.
- This device 7 is connected to the evaluation device 4 in terms of data and/or signals.
- an air conditioning system 9 for air conditioning and/or ventilation of a vehicle interior of the rail vehicle 1.
- This device/system 7, 9 can include actuators, for example motors or controllable valves, which can be controlled by control signals SS (see FIG. 2b). These control signals SS can be generated by the control and evaluation device 4 as a function of a detected tunnel entrance TE.
- controllable devices of the rail vehicle 1 can also be connected to the evaluation device 4 in terms of data and/or signals and can be controlled by control signals SS.
- the control and evaluation device 4 can, for example, be in the form of a microcontroller or include one.
- Fig. 2a shows a schematic flowchart of a method according to the invention for detecting a tunnel entrance TE (see Fig. 1) or a tunnel exit of a rail vehicle 1.
- a spatial region in the direction of travel 5 in front of the rail vehicle 1 is imaged in at least one image A by at least one image acquisition device 3, 3a, 3b, 3c of a set of sensors 2.
- a second step S2 the at least one image A is evaluated in order to detect the presence of the tunnel entrance TE or a tunnel exit before the rail vehicle 1 enters the tunnel T or before the rail vehicle 1 exits the tunnel T. If a tunnel entrance TE or a tunnel exit is detected, a detection signal DS is generated. will not Tunnel entrance TE or no tunnel exit is detected, no detection signal DS is generated.
- FIG. 2b shows a schematic flow chart of a method according to the invention for operating a rail vehicle 1 (see FIG. 1).
- the first two steps S1, S2 of the embodiment shown in FIG. 2b correspond to the first two steps S1, S2 of the embodiment shown in FIG. 2a.
- a distance D (see Fig. 1) between the Rail vehicle 1 and the tunnel entrance TE or the tunnel exit is determined.
- a speed V of the rail vehicle 1 is then determined in a fourth step S4.
- a control signal depending on the detection signal DS, the distance D and the vehicle speed V is then generated.
- properties of the control signal SS depending on the detection signal DS, the distance D and the vehicle speed V can be adjusted.
- a property can be, for example, a point in time at which execution of a function to be controlled by the control signal begins.
- Another property can be a level of a setpoint value of a variable that is to be generated by an actuator of a controllable device or a controllable vehicle system of the rail vehicle 1 that can be controlled by the control signal SS.
- a pressing force with which the pantograph 6 is pressed against an overhead line 8 can be changed after a speed-dependent time period after a detection time when the presence of a tunnel entrance TE or a tunnel exit is detected (see FIG. 1).
- an opening state of an air duct which connects a vehicle interior with an external environment of the rail vehicle 1, is set to a predetermined state after a speed-dependent period of time after the time of detection if the presence of the tunnel entrance TE or a tunnel exit is detected.
- the opening state can be set, for example, by a valve of the air conditioning system 9 .
- a control signal SS it is therefore possible for a control signal SS to be generated only when a detection signal DS has been generated.
- control signal SS can be generated with predetermined properties, in particular at a predetermined point in time. If the distance and/or the vehicle speed V is determined, then the property of the control signal can also be determined and set as a function of these variables. It is of course possible that--if a distance D and no vehicle speed V is determined--a control signal SS with at least one property dependent on the distance D, but not on the vehicle speed V, is generated.
- the speed-dependent time period can be determined based on assignment.
- determining the distance in the fourth step S4 and determining the vehicle speed V in the fifth step S5 are optional.
- the set of sensors 2 comprises an image acquisition device 3, which can in particular be embodied as a camera, for example a CCD camera or CMOS camera. It is possible for the camera to be a black-and-white camera, a camera for generating depth images or an infrared camera, in particular a short-wave infrared camera.
- the image acquisition device 3 can also be a lidar sensor or a radar sensor for generating two-dimensional or three-dimensional images. Any other sensor or sensors that generate signals based on other physical principles of action are also suitable for generating two- or three-dimensional images, e.g. sensors based on ultrasound or electrical impulses.
- 3b shows a schematic diagram of a set of sensors 2 according to a further embodiment.
- the set of sensors 2 comprises a first and a further image acquisition device 3a, 3b.
- These can be image acquisition devices 3a, 3b of a stereo camera system. It is possible, by evaluating the images generated by the stereo camera system A, the distance D (see Fig. 1) between To determine rail vehicle 1 and tunnel entrance TE. Methods of so-called stereo matching can be used for this purpose.
- lidar/radar sensor it is also possible to use a lidar/radar sensor to determine the distance D, which can generate 4D radar information, for example.
- 3c shows another schematic diagram of a set of sensors 2.
- This includes a first image capturing device 3a and a further image capturing device 3b, which can be embodied as CMOS or CCD cameras, for example.
- the set of sensors 2 also includes a lidar/radar sensor 3c.
- the image capture devices 3a, 3b in turn form image capture devices of a stereo camera system.
- instead of the lidar/radar sensor 3c--as explained above--a sensor can also be used which generates output signals according to a different physical operating principle.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020211117.0A DE102020211117A1 (de) | 2020-09-03 | 2020-09-03 | Verfahren zur Detektion einer Tunneleinfahrt oder einer Tunnelausfahrt eines Schienenfahrzeugs, Betriebsverfahren sowie Schienenfahrzeug |
| PCT/EP2021/074038 WO2022049079A1 (de) | 2020-09-03 | 2021-08-31 | Verfahren zum betrieb eines schienenfahrzeugs sowie schienenfahrzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4208382A1 true EP4208382A1 (de) | 2023-07-12 |
| EP4208382B1 EP4208382B1 (de) | 2025-07-16 |
Family
ID=77821716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21773001.9A Active EP4208382B1 (de) | 2020-09-03 | 2021-08-31 | Verfahren zum betrieb eines schienenfahrzeugs sowie schienenfahrzeug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12195060B2 (de) |
| EP (1) | EP4208382B1 (de) |
| CN (1) | CN116261541A (de) |
| DE (1) | DE102020211117A1 (de) |
| WO (1) | WO2022049079A1 (de) |
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| KR102371502B1 (ko) * | 2021-01-19 | 2022-03-08 | (주)뷰런테크놀로지 | 라이다 센서를 이용하여 터널 및 고가도로를 검출하는 방법 및 상기 방법을 수행하는 터널 검출 장치 |
| US12344291B2 (en) * | 2021-08-30 | 2025-07-01 | Siemens Mobility, Inc. | System and method for monitoring failure of trains inside tunnels |
| CN115610478B (zh) * | 2022-11-03 | 2026-02-10 | 中车株洲电力机车有限公司 | 一种气密度控制方法、系统及轨道车辆 |
| CN116793245B (zh) * | 2023-08-24 | 2023-12-01 | 济南瑞源智能城市开发有限公司 | 一种基于轨道机器人的隧道检测方法、设备及介质 |
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| DE4238034C1 (de) * | 1992-11-11 | 1994-03-31 | Michael Dipl Ing Sartori | Verfahren und Vorrichtung zum inspektierenden, berührungslosen Abtasten der unmittelbaren Umgebung einer Gleisstrecke hinsichtlich bestimmter Meßkriterien |
| DE19940350C2 (de) * | 1999-08-25 | 2003-06-05 | Deutsche Bahn Ag | Verfahren und Anordnung zur Überwachung des Fahrdrahtes einer Fahrtstrecke für elektrisch antreibbare Schienenfahrzeuge |
| DE102010048059A1 (de) | 2010-10-12 | 2012-04-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Assistenzvorrichtung |
| US9238468B2 (en) * | 2011-09-20 | 2016-01-19 | General Electric Company | Systems and methods for controlling exhaust flow through an aftertreatment device |
| KR101228349B1 (ko) * | 2012-07-03 | 2013-02-13 | (주)스마텍 | 철도시설물 동기화 감시 시스템 |
| US9920715B2 (en) * | 2013-01-28 | 2018-03-20 | General Electric Company | Method and system for EGR control for ambient conditions |
| DE102012215533A1 (de) | 2012-08-31 | 2014-03-06 | Siemens Aktiengesellschaft | Positionsbestimmung eines Schienenfahrzeugs |
| JP6216983B2 (ja) * | 2013-07-04 | 2017-10-25 | 株式会社明電舎 | 架線測定装置及び方法 |
| KR101632179B1 (ko) * | 2013-12-24 | 2016-07-01 | 엘지전자 주식회사 | 차량 운전 보조 장치 및 이를 구비한 차량 |
| DE102015207026A1 (de) | 2015-04-17 | 2016-10-20 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Steuern eines Erfassungssystems zum Erfassen eines Umfelds eines Fahrzeugs |
| CN105818694A (zh) * | 2016-03-17 | 2016-08-03 | 中车株洲电力机车有限公司 | 一种弓网接触压力自适应调节方法、装置和系统 |
| JP6691266B2 (ja) * | 2017-03-27 | 2020-04-28 | 株式会社日立国際電気 | 列車映像監視システム |
| FR3077885B1 (fr) | 2018-02-15 | 2020-08-28 | Delphi Tech Llc | Systeme et methode de detection de tunnel pour vehicule automobile |
| CN108372825B (zh) * | 2018-03-22 | 2021-07-02 | 长安大学 | 一种基于图像识别的隧道洞口车辆自动开关灯方法 |
| CN108839662A (zh) * | 2018-06-25 | 2018-11-20 | 中车青岛四方机车车辆股份有限公司 | 一种轨道车辆车内压力保护方法、装置及系统 |
| CN108834283A (zh) * | 2018-07-13 | 2018-11-16 | 汪海玉 | 一种车辆进入隧道的灯光提前识别控制系统 |
| CN109489584B (zh) * | 2018-12-03 | 2021-02-26 | 大连维德集成电路有限公司 | 一种基于3d技术的隧道限界检测系统及隧道限界识别方法 |
| CN109455187A (zh) * | 2019-01-30 | 2019-03-12 | 新誉轨道交通科技有限公司 | 列车压力波控制方法、装置以及电子设备 |
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- 2021-08-31 US US18/024,396 patent/US12195060B2/en active Active
- 2021-08-31 EP EP21773001.9A patent/EP4208382B1/de active Active
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| Publication number | Publication date |
|---|---|
| DE102020211117A1 (de) | 2022-03-03 |
| WO2022049079A1 (de) | 2022-03-10 |
| US20230311958A1 (en) | 2023-10-05 |
| CN116261541A (zh) | 2023-06-13 |
| EP4208382B1 (de) | 2025-07-16 |
| US12195060B2 (en) | 2025-01-14 |
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