Abstract

At least one fiber-optic sensor unit measures a mechanical variable which affects a rail having a certain length and a neutral axis that extends along said length of the rail. The at least one fiber-optic sensor unit is disposed at an angle of 30° to 60°, in particular 45°, relative to the neutral axis or at an angle of −30° to −60°, in particular −45°, relative to the neutral axis. The at least one fiber-optic sensor unit is irradiated with primary light in order to generate a signaling light in a reflection mode or transmission mode. The intensity of the signaling light is sensed. The signaling light is evaluated.

IPC Classes  ?

• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01M 11/08 - Testing mechanical properties
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• B61K 9/08 - Measuring installations for surveying permanent way
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains

Abstract

In summary, the present invention proposes a safe train remote control of an automated train (ATR), wherein the track section ahead of the automated train (ATR) is watched with a video camera system (CAM) producing high resolution image frames (HRI). The high resolution image frames (HRI) are converted to low resolution image frames (LRI) and transmitted via a mobile communication network (MCN) to a train remote control console in a trackside control centre (COC) via a fist data channel (CH1). Further, the high resolution image frames (HRI) undergo a pattern recognition, and for identified objects corresponding to reference objects in a map data base (MDB), a reconstruction information is transmitted via the mobile communication network (MCN) to the train remote control console via a second data channel (CH2). At the train remote control console, high resolution object appearances (HROA) for the identified objects is reconstructed using the reconstruction information and a corresponding map data base (MDB). The high resolution object appearances (HROA) are overlayed onto the low resolution image frames (LRI) received via the first data channel (CH1) and displayed at the train remote control console. Thus both safety relevant details and a general impression of the track section ahead are made available to a remote train driver at low bandwidth consumption of the mobile communication network.

IPC Classes  ?

• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• B61L 25/06 - Indicating or recording the setting of track apparatus, e.g. of points, of signals
• B61L 27/04 - Automatic systems, e.g. controlled by trainChange-over to manual control

Abstract

Power distribution system (1) for use in a control system having a 200N architecture with N=2 or 3 at least n controller loads (2a, 2b), the power distribution system (1) comprising: = a common power supply source (3) providing electrical input power to the control system; = at least n independent power channels (4a, 4b), wherein each power channel (4a, 4b) is connected to the common power supply source (3) through a power feed line (5a, 5b) and a return line (6a, 6b) and wherein each power channel (4a, 4b) is adapted to feed power to one of the controller loads (2a, 2b); = a splitting device (7) for multiplexing the common input power to the at least two independent power channels (4a, 4b). The inventive power distribution system enables safety channel separation and independent channels while using a common power source without the need of components having inherent failsafe properties or requiring elaborate tests.

IPC Classes  ?

• H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
• B61C 17/00 - Arrangement or disposition of partsDetails or accessories not otherwise provided forUse of control gear and control systems
• B64D 47/00 - Equipment not otherwise provided for
• F41H 13/00 - Means of attack or defence not otherwise provided for
• H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

Abstract

A method for data transmission inside a rail-bound traffic system has of a plurality of field elements, in which the data transmission takes place via a flexible wireless transmission path between a sender field element and a control unit along available field elements. A data transmission system is for application of the method and a rail-bound traffic system having such a data transmission system. Furthermore, there is use of communication units on field elements of a rail-bound traffic system to form the data transmission system.

IPC Classes  ?

• B61L 27/70 - Details of trackside communication
• B61L 27/40 - Handling position reports or trackside vehicle data
• B61L 27/50 - Trackside diagnosis or maintenance, e.g. software upgrades
• B61L 27/53 - Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions
• H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes

Abstract

A fastening element for a sensor is disclosed, which fastening element can be fastened to a structure by means of a light-curing adhesive. The light-curing adhesive is cured within the cavities provided for receiving the light-curing adhesive by direct and/or indirect illumination. Furthermore, a sensor unit having a sensor and a fastening element, an arrangement having a sensor unit and a structure, and a method for providing an arrangement is disclosed.

IPC Classes  ?

• G01D 11/30 - Supports specially adapted for an instrumentSupports specially adapted for a set of instruments
• B29C 65/14 - Joining of preformed partsApparatus therefor by heating, with or without pressure using wave energy or particle radiation
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass
• B61K 9/08 - Measuring installations for surveying permanent way

Abstract

A rail contact element for drop off detection is disclosed, wherein the rail contact element is mountable to a rail and includes a spring element, a main body which holds the spring element and an optical fiber. The spring element is in a tension state or in a relax state depending on a mounting state of the rail contact element. The optical fiber includes an outlet surface for emitting a light beam and the rail contact element further includes a reflector element. The spring element, the reflector element and the optical fiber are arranged so that the influence of the reflector element on the light beam is different in the tension state than in the relax state.

IPC Classes  ?

• B61L 1/20 - Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
• B61L 1/02 - Electric devices associated with track

Abstract

A device for fixing and positioning a rail monitoring element on a rail web of a rail having a rail foot, the rail web, and a rail head, includes a clamping device which can be fastened to the rail. A pressing ram is for pressing the rail monitoring element against the rail web. The pressing ram can be pressed against the rail web when the device is in the mounted state by means of force generated by a force element. A holder is for receiving the force element.

IPC Classes  ?

• E01B 29/32 - Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors
• E01B 26/00 - Tracks or track components not covered by any one of main groups

Abstract

A rail-monitoring element includes a carrier on which a strain sensor is attached. The strain sensor may be an optical fiber having a fiber Bragg grating. The carrier has an adhesive layer for adhesive attachment to a rail having a thermally activatable or thermally curable adhesive. The adhesive layer has a heating element having contacts for receiving electrical energy. The rail-monitoring element can be installed more easily and in a manner which saves more energy.

IPC Classes  ?

• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings

Abstract

A fiber optic sensor unit for detecting a mechanical force acting on a rail includes at least a first sensor fiber, a first elongated fiber optic strain sensor and a second elongated fiber optic strain sensor. The first sensor fiber includes the first strain sensor and is characterized in that the at least one sensor fiber is attached to a sensor plate. The first fiber strain sensor and the second strain sensor are arranged in an x-type or v-type geometry, wherein the first strain sensor and the second strain sensor are arranged in an angle of 60° to 120°, in particular of 90°, to each other. Measurements with increased amplification of the measurement signal and improved raw data can be made.

IPC Classes  ?

• B61K 9/08 - Measuring installations for surveying permanent way
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings

Abstract

The invention relates to a system for monitoring a train (10) having a first signal unit (12) at a first train end (E1) and a second signal unit (14) at a second train end (E2), wherein the first signal unit (12) comprises a first receiver unit (12.1) which is designed to receive first signal data from a location system (18) on at least one first frequency (f1). The system further comprises an evaluation unit (16) which is designed to determine position data of the first receiver unit (12.1) from the first signal data. The second signal unit (14) comprises a second receiver unit (14.1) which is designed to receive second signal data from a location system (18) on the at least one first frequency (f1). The second signal unit (14) has a first frequency converter (14.2) which is designed to covert the second signal data to at least one second frequency and to transmit on the at least one second frequency. The first receiver unit (12.1) is designed to receive the second signal data on the at least one second frequency. The evaluation unit (16) is designed to determine position data of the second receiver unit (14.1) from the second signal data. The invention further relates to a method for monitoring a train (10).

IPC Classes  ?

• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• G01S 19/50 - Determining position whereby the position solution is constrained to lie upon a particular curve or surface, e.g. for locomotives on railway tracks
• G01S 19/09 - Cooperating elementsInteraction or communication between different cooperating elements or between cooperating elements and receivers providing processing capability normally carried out by the receiver
• G01S 19/42 - Determining position

Abstract

The invention relates to a method for data transmission inside a rail transport system (1) consisting of a plurality of field elements (12, 14 I-V, 16 I-V, 18 I-II), in which the data transmission takes place via a flexible wireless transmission path (36, 40) between a sender field element (16 I) and a control unit (24) along available field elements (12, 14 I-V, 16 I-V, 18 I-II). Furthermore, the invention relates to a data transmission system (10) for application of the method and a rail transport system (1) having such a data transmission system (10). Furthermore, the invention relates to the use of communication units (26) on field elements (12, 14 I-V, 16 I-V, 18 I-II) of a rail transport system (1) to form the data transmission system (10).

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• B61L 5/12 - Visible signals

Abstract

The invention relates to a method for data transmission inside a rail transport system (1) consisting of a plurality of field elements (12, 14 I-V, 16 I-V, 18 I-II), in which the data transmission takes place via a flexible wireless transmission path (36, 40) between a sender field element (16 I) and a control unit (24) along available field elements (12, 14 I-V, 16 I-V, 18 I-II). Furthermore, the invention relates to a data transmission system (10) for application of the method and a rail transport system (1) having such a data transmission system (10). Furthermore, the invention relates to the use of communication units (26) on field elements (12, 14 I-V, 16 I-V, 18 I-II) of a rail transport system (1) to form the data transmission system (10).

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• B61L 5/12 - Visible signals

Abstract

The invention concerns a rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) for drop off detection, wherein the rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) is mountable to a rail (12) and comprises a spring element (14), a main body (16) which holds the spring element and an optical fibre (18), wherein the spring element (14) is in a tension state or in a relax state depending on a mounting state of the rail contact element. The optical fibre (18) comprises an outlet surface (20) for emitting a light beam (22) and the rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) further comprises a reflector element (24). The spring element (14), the reflector element (24) and the optical fibre (18) are arranged so that the influence of the reflector element (24) on the light beam (22) is different in the tension state than in the relax state.

IPC Classes  ?

• B61L 1/02 - Electric devices associated with track
• B61L 1/06 - Electric devices associated with track actuated by deformation of railElectric devices associated with track actuated by vibration in rail
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• B61L 1/20 - Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning

Abstract

The invention relates to a retaining device (10) for a sensor (12), which can be secured to a structure (3) by means of a light-cured adhesive (24). The light-cured adhesive (24) is cured within the hollow space (20) provided for receiving the light-cured adhesive (24) by means of direct and/or indirect illumination. The invention also relates to a sensor unit (2) comprising a sensor (12) and a retaining device (10), an assembly (1) comprising a sensor unit (2) and a structure (3), and also to a method for providing an assembly (1).

IPC Classes  ?

• G01D 11/30 - Supports specially adapted for an instrumentSupports specially adapted for a set of instruments
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Abstract

The invention relates to a retaining device (10) for a sensor (12), which can be secured to a structure (3) by means of a light-cured adhesive (24). The light-cured adhesive (24) is cured within the hollow space (20) provided for receiving the light-cured adhesive (24) by means of direct and/or indirect illumination. The invention also relates to a sensor unit (2) comprising a sensor (12) and a retaining device (10), an assembly (1) comprising a sensor unit (2) and a structure (3), and also to a method for providing an assembly (1).

IPC Classes  ?

• G01D 11/30 - Supports specially adapted for an instrumentSupports specially adapted for a set of instruments
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Abstract

The invention concerns a rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) for drop off detection, wherein the rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) is mountable to a rail (12) and comprises a spring element (14), a main body (16) which holds the spring element and an optical fibre (18), wherein the spring element (14) is in a tension state or in a relax state depending on a mounting state of the rail contact element. The optical fibre (18) comprises an outlet surface (20) for emitting a light beam (22) and the rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) further comprises a reflector element (24). The spring element (14), the reflector element (24) and the optical fibre (18) are arranged so that the influence of the reflector element (24) on the light beam (22) is different in the tension state than in the relax state.

IPC Classes  ?

• B61L 1/02 - Electric devices associated with track
• B61L 1/06 - Electric devices associated with track actuated by deformation of railElectric devices associated with track actuated by vibration in rail
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• B61L 1/20 - Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning

Abstract

The invention relates to a control system (10) for a traffic network (50), which has an output interface (26) which is configured to issue outputs to the traffic network (50) during an operating phase, the outputs being able to change states of elements of the traffic network (50), also having an input interface (28) which is configured to receive inputs (28) from the traffic network (50) during the operating phase, said inputs relating to states of elements of the traffic network (50), the control system (10) comprising a knowledge base (16) which was generated during a preparation phase outside the operating phase, and the data saved in the knowledge base (16) having a data structure comprising a trio of bit switch, characteristic and action. The invention further relates to a method for preparing and/or adapting a control system.

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• B61L 27/04 - Automatic systems, e.g. controlled by trainChange-over to manual control

Abstract

The invention relates to a control system (10) for a traffic network (50), which has an output interface (26) which is configured to issue outputs to the traffic network (50) during an operating phase, the outputs being able to change states of elements of the traffic network (50), also having an input interface (28) which is configured to receive inputs (28) from the traffic network (50) during the operating phase, said inputs relating to states of elements of the traffic network (50), the control system (10) comprising a knowledge base (16) which was generated during a preparation phase outside the operating phase, and the data saved in the knowledge base (16) having a data structure comprising a trio of bit switch, characteristic and action. The invention further relates to a method for preparing and/or adapting a control system.

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• B61L 27/04 - Automatic systems, e.g. controlled by trainChange-over to manual control

Abstract

A method for assembling a strain gauge arrangement for an axle counter, includes: a strain sensor element; a carrier, to which the strain sensor element is fastened; and a railroad track structure to be monitored. When the carrier is fastened to the structure at least a part of it is kept in an elastically deformed state. The carrier is embodied with a first carrier piece opposing a second carrier piece. The strain sensor element is fastened to the first carrier piece with a first fixing point, to the second carrier piece with a second fixing point, and to neither the first nor the second carrier piece with a central section between the fixing points. At least the part of the carrier is elastically braced by means of a bracing element for when adhesively bonding to the structure to be monitored. Thereafter the bracing element is removed.

IPC Classes  ?

• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
• G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge

Abstract

A method for safely determining a position information of a train on a track includes an on-board system determining appearance characteristics, current distances relative to the train and current angular positions relative to the train of passive trackside structures with a first sensor arrangement of a first localization stage of the on-board system. The on-board system stores a map data base in which georeferenced locations and appearance characteristics of the passive trackside structures are registered. A first position information about the train is derived from a comparison of determined current distances and current angular positions and the registered locations of allocated passive trackside structures by the first localization stage. A second position information about the train is derived from satellite signals determined by a second sensor arrangement of a second localization stage. The first and second position information undergo a data fusion resulting in a consolidated position information.

IPC Classes  ?

• B61L 25/04 - Indicating or recording train identities
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains

Abstract

The invention relates to a device (10) for fixing and positioning a rail monitoring element (14) on a rail web (16) of a rail (12) with a rail foot (18), the rail web (16), and a rail head (34), having a clamping device, via which the device (10) can be secured to the rail (12), a pressing punch (22) for pressing the rail monitoring element (14) against the rail web (16), a force element (20), wherein the pressing punch (22) can be pressed against the rail web (16) by means of a force generated by the force element when the device is installed, and a mounting (36, 48, 52) for receiving the force element.

IPC Classes  ?

• E01B 29/32 - Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors

Abstract

The invention relates to a method for controlling a train within a train control system, comprising the following method steps - creating an accident model (AccM), wherein accident classes and accident influence factors are determined; - determining a route reservation (RES) specific to the train, comprising a route reservation region and a route profile; - sending a request (A) for releasing the determined route reservation (RES) to a risk analysis device (MAXd); - carrying out a real-time risk analysis for the route reservation (RES) by means of the risk analysis device (MAXd) for at least some of the determined different accident classes, wherein a risk factor (RF) for the route reservation (RES) is determined, and as an outcome it is determined whether the risk factor (RF) is acceptable; - releasing or rejecting the route reservation (RES) depending on the outcome of the risk analysis. The planning, configuration/project planning and approval can thus be simplified and the route utilization can be optimized at a high safety level (safety integrity level SIL4).

IPC Classes  ?

• B61L 3/00 - Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor

Abstract

Device (10) for fixing and positioning a rail monitoring element (14) on a rail web (16) of a rail (12) comprising a rail foot (18), the rail web (16), and a rail head (34), having a clamping device via which the device (10) can be fastened to the rail (12), a pressing ram (22) for pressing the rail monitoring element (14) against the rail web (16), and a force element (20), wherein the pressing ram (22) can be pressed against the rail web (16) when the device is in the mounted state by means of force generated by the force element, and a holder (36, 48, 52) for receiving the force element.

IPC Classes  ?

• E01B 29/32 - Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors

Abstract

The invention relates to a method for controlling a train within a train control system, comprising the following method steps - creating an accident model (AccM), wherein accident classes and accident influence factors are determined; - determining a route reservation (RES) specific to the train, comprising a route reservation region and a route profile; - sending a request (A) for releasing the determined route reservation (RES) to a risk analysis device (MAXd); - carrying out a real-time risk analysis for the route reservation (RES) by means of the risk analysis device (MAXd) for at least some of the determined different accident classes, wherein a risk factor (RF) for the route reservation (RES) is determined, and as an outcome it is determined whether the risk factor (RF) is acceptable; - releasing or rejecting the route reservation (RES) depending on the outcome of the risk analysis. The planning, configuration/project planning and approval can thus be simplified and the route utilization can be optimized at a high safety level (safety integrity level SIL4).

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• B61L 3/00 - Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal

Abstract

The invention relates to a rail monitoring element (SUE) comprising a carrier (T) on which a strain sensor, in particular comprising an optical fibre (F) having a fibre Bragg grating (FBG), is attached. According to the invention, the carrier (T) has an adhesive layer (K) for adhesive attachment to a rail (S) having a thermally activatable or thermally curable adhesive, the adhesive layer (K) comprising a heating element (HE) having contacts (KO) that can be supplied with electrical energy. The rail monitoring element according to the invention can be installed more easily and in a manner which saves more energy.

IPC Classes  ?

• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• B61L 1/02 - Electric devices associated with track
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• G01K 5/48 - Measuring temperature based on the expansion or contraction of a material the material being a solid
• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings

Abstract

The invention relates to a rail monitoring element (SUE) comprising a carrier (T) on which a strain sensor, in particular comprising an optical fibre (F) having a fibre Bragg grating (FBG), is attached. According to the invention, the carrier (T) has an adhesive layer (K) for adhesive attachment to a rail (S) having a thermally activatable or thermally curable adhesive, the adhesive layer (K) comprising a heating element (HE) having contacts (KO) that can be supplied with electrical energy. The rail monitoring element according to the invention can be installed more easily and in a manner which saves more energy.

IPC Classes  ?

• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01K 5/48 - Measuring temperature based on the expansion or contraction of a material the material being a solid
• B61L 1/02 - Electric devices associated with track
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings

Abstract

A method for safely determining position information of a train on a track, wherein an on-board train system identifies trackside structures, in that the trackside structures comprise passive trackside structures which are passive in their identification by the on-board system, wherein the on-board system determines appearance characteristics, current distances relative to the train and current angular positions relative to the train of the passive trackside structures by means of a first sensor arrangement of a first localization stage of the on-board system, wherein the on- board system stores a map database in which georeferenced locations and appearance characteristics of the passive trackside structures are registered.

IPC Classes  ?

• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains

Abstract

A train control network includes a rail, a first communication element and a second communication element, which are to communicate with each other. The first communication element includes a first HF-injector, adapted for injecting HF-signals into the rail. The second communication element includes a HF-receiver, adapted for receiving HF-signals transmitted via the rail. An evaluation unit is provided for analyzing the received HF-signals.

IPC Classes  ?

• G01N 27/00 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
• G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
• H04B 3/60 - Systems for communication between relatively movable stations, e.g. for communication with lift
• B61L 27/70 - Details of trackside communication
• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 3/24 - Continuous control along the route using magnetic or electrostatic inductionContinuous control along the route using electromagnetic radiation employing different frequencies or coded pulse groups

Abstract

A fiber optic sensor unit (la) for detecting a mechanical force acting on a rail (15) comprising at least a first sensor fiber (2, 3), a first elongated fiber optic strain sensor (4) and a second elongated fiber optic strain sensor (5), wherein the first sensor fiber (2)comprises the first strain sensor (4), is characterized in that the at least one sensor fiber (2, 3) is attached to a sensor plate, and that the first fiber strain sensor (4) and the second strain sensor (5) are arranged in an x-type or v-type geometry, wherein the first strain sensor (4) and the second strain sensor (5) are arranged in an angle of 60° to 120°, in particular of 90°, to each other. Measurements with increased amplification of the measurement signal and improved raw data can be made.

IPC Classes  ?

• G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings

Abstract

A fiber optic sensor unit (la) for detecting a mechanical force acting on a rail (15) comprising at least a first sensor fiber (2, 3), a first elongated fiber optic strain sensor (4) and a second elongated fiber optic strain sensor (5), wherein the first sensor fiber (2)comprises the first strain sensor (4), is characterized in that the at least one sensor fiber (2, 3) is attached to a sensor plate, and that the first fiber strain sensor (4) and the second strain sensor (5) are arranged in an x-type or v-type geometry, wherein the first strain sensor (4) and the second strain sensor (5) are arranged in an angle of 60° to 120°, in particular of 90°, to each other. Measurements with increased amplification of the measurement signal and improved raw data can be made.

IPC Classes  ?

• G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route

Abstract

A method for wagon-to-wagon communication between wagons of a train is disclosed. The train includes a first train wagon and at least one further train wagon, the first train wagon having a first transmitter/receiver device, and the further train wagon having a further transmitter/receiver device. The first transmitter/receiver device sends a request message using short distance communication. The further transmitter/receiver device sends an acknowledgement to the first transmitter/receiver device using short distance communication. The first transmitter/receiver device sends a first identification code identifying the first train wagon to the further train wagon. A method for checking train integrity and a train wagon is also disclosed.

IPC Classes  ?

• H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• H04W 4/46 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• B61L 25/04 - Indicating or recording train identities
• H04L 5/00 - Arrangements affording multiple use of the transmission path

Abstract

The invention concerns a method for wagon-to-wagon-communication between wagons of a train (10), the train comprising a first train wagon (12) and at least one further train wagon (22), the first train wagon comprising a first transmitter/receiver device (14), and the further train wagon (22) comprising a further transmitter/receiver device (26). The method comprises the following steps: the first transmitter/receiver device (14) sends a request message using short distance communication (20), the further transmitter/receiver device (26) sends an acknowledgement to the first transmitter/receiver device (14) using short distance communication (20), the first transmitter/receiver device (14) sends a first identification code identifying the first train wagon (12) to the further train wagon (22). The invention further concerns a method for checking train integrity and a train wagon.

IPC Classes  ?

• H04B 11/00 - Transmission systems employing ultrasonic, sonic or infrasonic waves
• H04W 84/10 - Small scale networksFlat hierarchical networks
• H04B 10/114 - Indoor or close-range type systems
• B60R 16/027 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
• B61K 13/00 - Other auxiliaries or accessories for railways
• H04L 12/40 - Bus networks

Abstract

A method of mounting a rail monitoring member/element at a mounting location of a rail for rail traffic, in particular on a railway track, is disclosed. The rail monitoring member includes a strain sensor member with a carrier on which a strain gauge, being an optical fiber with a fiber Bragg grating, is fixed. The method steps include: determination of the temperature of the rail and/or rail monitoring member at the mounting location; checking whether the determined temperature is within a predefined temperature interval; providing heating or cooling application to the rail and/or rail monitoring member at the mounting location, if the determined temperature is not within the predefined temperature interval; positioning and adhesively fixing of the carrier of the rail monitoring member at the mounting location. The method can be carried out easily and allows reliable and accurate monitoring of the rail using a strain sensor member.

IPC Classes  ?

• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• G01K 13/00 - Thermometers specially adapted for specific purposes
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis

Abstract

A strain gauge arrangement for an axle counter has a strain sensor element, a carrier and a railway line structure that is to be monitored. At least one part of the carrier is maintained in an elastically deformed state by the structure when the carrier is secured to the structure. The carrier is formed from a first carrier piece and a second carrier piece, which lie opposite one another at a distance from one another. The strain sensor element has one first fixing point fixed to the first carrier piece, and one second fixing point fixed to the second carrier piece, and a middle section mounted between the fixing points which are not fixed to the first or second carrier piece. The strain gauge arrangement is simple to handle and a drop can be reliably detected and a strain state of the strain sensor element can be predetermined more easily.

IPC Classes  ?

• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Abstract

The invention relates to a method for controlling and monitoring a functional unit (2) having a display apparatus (3) for displaying state patterns and functional elements (4), a state pattern describing the switching state/the switching states of the at least one functional element (4), which method comprises: a) transmitting a control signal from a control apparatus (5) to the functional unit (2), the control signal comprising information content regarding a state pattern to be displayed by means of the display apparatus (3); b) displaying a state pattern by means of the display apparatus (3) using the control signal, c) generating a readback signal, the readback signal comprising information content regarding the displayed state pattern, d) transmitting the readback signal to the control apparatus (5); e) comparing the information content of the readback signal to the information content of the control signal. The method is characterized in that the information content regarding the state pattern to be displayed is transmitted in the form of DC signals on one or more control lines (8a) from the control unit (5) to the functional unit (2) and the readback signal is transmitted back in the form of an AC signal from the functional unit (2) to the control apparatus (5).

IPC Classes  ?

• B61L 5/18 - Light signalsMechanisms associated therewith, e.g. blinders
• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor

Abstract

i,n is larger than a threshold THR, the satellite signals are disallowed for position determination at all GNSS receivers.

IPC Classes  ?

• G01S 19/08 - Cooperating elementsInteraction or communication between different cooperating elements or between cooperating elements and receivers providing integrity information, e.g. health of satellites or quality of ephemeris data

Abstract

In conclusion, the present invention proposes a test metric for GNSS code signals received at GNSS receivers (1-4), wherein for each satellite i, a signal sent by that satellite i is received at the different GNSS receivers (1-4), and bias-removed, averaged over the receivers and normalized measurement values are derived out of autocorrelation function values (110, 120) from the received GNSS code signals, wherein a correlation matrix R i,n is built (130) from a matrix X i,n containing the measurement values in the form of measurement value vectors X i,k from the present time epoch t n and from previous time epochs t k with k=1,...,n-1, wherein a principal component analysis is done (150) of matrix R i,n, wherein a transformed vector T i,n = PC T i,n .cndot. X i,n is calculated (160), with PC i,n containing at least two eigenvectors belonging to eigenpairs having the largest eigenvalues of all eigenpairs, wherein a signal quality monitor test metric SQM i,n is built (170) from the square sum of the entries of transformed vector T i,n, and wherein if SQM i,n is larger than a threshold THR, the signals of satellite i are disallowed (190) for position determination at all GNSS receivers (1-4). The invention allows monitoring GNSS code signals with respect to satellite signal deformation with an improved integrity and continuity.

IPC Classes  ?

• G01S 19/08 - Cooperating elementsInteraction or communication between different cooperating elements or between cooperating elements and receivers providing integrity information, e.g. health of satellites or quality of ephemeris data
• G01S 19/28 - Satellite selection

Abstract

A train traffic control system comprising a traffic management system (IMS) for executing safety critical operations, a route and train control system (RTCS), and a command and status adapter (COST), wherein the train traffic control system is adapted to exchange information and commands between the traffic management system (TMS) and the route and train control system (RTCS), wherein the command and status adapter (COST) comprises software components for carrying out functions with basic integrity, wherein the traffic control system further comprises a software component for carrying out a function for controlling safety critical operations, is characterized in that the function for controlling safety critical operations is outsourced from the command and status adapter (COST). The inventive train traffic control system on the one hand realizes a high safety level and on the other hand allows considerable cost reduction.

IPC Classes  ?

• B61L 19/06 - Interlocking devices having electrical operation
• B61L 21/06 - Vehicle-on-line indicationMonitoring locking and release of the route
• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• B61L 25/06 - Indicating or recording the setting of track apparatus, e.g. of points, of signals

Abstract

A train control network according to the invention comprises a rail (3), a first communication element (1') and a second communication element (2'), which are to communicate with each other, wherein the first communication element (1') comprises a first HF-injector (4), adapted for injecting HF-signals into the rail (3), wherein the second communication element (2') comprises a HF-receiver (5), adapted for receiving HF-signals transmitted via the rail (3); and wherein an evaluation unit (6) is provided for analyzing the received HF-signals.

IPC Classes  ?

• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 27/70 - Details of trackside communication
• B61L 3/24 - Continuous control along the route using magnetic or electrostatic inductionContinuous control along the route using electromagnetic radiation employing different frequencies or coded pulse groups

Abstract

A train control network according to the invention comprises a rail (3), a first communication element (1') and a second communication element (2'), which are to communicate with each other, wherein the first communication element (1') comprises a first HF-injector (4), adapted for injecting HF-signals into the rail (3), wherein the second communication element (2') comprises a HF-receiver (5), adapted for receiving HF-signals transmitted via the rail (3); and wherein an evaluation unit (6) is provided for analyzing the received HF-signals.

IPC Classes  ?

• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 3/24 - Continuous control along the route using magnetic or electrostatic inductionContinuous control along the route using electromagnetic radiation employing different frequencies or coded pulse groups
• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor

Abstract

The invention relates to a method for mounting a rail monitoring element at a mounting point of a rail for rail traffic, in particular on a railway rail, wherein the rail monitoring element comprises a strain sensor element having a support, on which a strain gauge, in particular an optical fibre having a fibre Bragg grating, is fixed, comprising the following method steps: determining the temperature of the rail and/or the rail monitoring element at the mounting point, checking whether the determined temperature is within a predefined temperature interval, applying heat or cold to the rail and/or the rail monitoring element at the mounting point if the determined temperature is not within the predefined temperature interval, positioning and fixing the support of the rail monitoring element at the mounting point, wherein the fixing is carried out adhesively. The method according to the invention can firstly be carried out simply and, in addition, permits reliable and accurate monitoring of the rail by using a strain sensor element.

IPC Classes  ?

• B61L 1/06 - Electric devices associated with track actuated by deformation of railElectric devices associated with track actuated by vibration in rail
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles

Abstract

The invention relates to a strain gauge arrangement (1), in particular for an axle counter (91), comprising at least one strain sensor element (5), in particular an optical fibre (6) having a fiber Bragg-grating (6a, FBG), a carrier (2) on which the strain sensor element (5) is secured, and a structure (4) that is to be monitored, in particular a railway line, on which the carrier (2) is secured. At least one part of the carrier (2) is maintained in an elastically deformed state by the structure (4) when the carrier (2) is secured to the structure (4). The invention is characterized in that the carrier (2) is formed from a first carrier piece (T1) and a second carrier piece (T2), which lie opposite one another at a distance from one another, and in that the strain sensor element (5) comprises at least one first fixing point (7) which is fixed to the first carrier piece (T1), and at least one second fixing point (8) which is fixed to the second carrier piece (T2), and a middle section (5a) mounted between the fixing points (7, 8) which are not fixed to either the first or to the second carrier piece (T1, T2). The invention provides a strain gauge arrangement which is simple to handle and in which a drop can be reliably detected and a strain state of the strain sensor element can be predetermined more easily.

IPC Classes  ?

• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Abstract

The invention relates to a strain gauge arrangement (1), in particular for an axle counter (91), comprising at least one strain sensor element (5), in particular an optical fibre (6) having a fiber Bragg-grating (6a, FBG), a carrier (2) on which the strain sensor element (5) is secured, and a structure (4) that is to be monitored, in particular a railway line, on which the carrier (2) is secured. At least one part of the carrier (2) is maintained in an elastically deformed state by the structure (4) when the carrier (2) is secured to the structure (4). The invention is characterized in that the carrier (2) is formed from a first carrier piece (T1) and a second carrier piece (T2), which lie opposite one another at a distance from one another, and in that the strain sensor element (5) comprises at least one first fixing point (7) which is fixed to the first carrier piece (T1), and at least one second fixing point (8) which is fixed to the second carrier piece (T2), and a middle section (5a) mounted between the fixing points (7, 8) which are not fixed to either the first or to the second carrier piece (T1, T2). The invention provides a strain gauge arrangement which is simple to handle and in which a drop can be reliably detected and a strain state of the strain sensor element can be predetermined more easily.

IPC Classes  ?

• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• G01D 5/353 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Abstract

The invention relates to a method for mounting a rail monitoring element at a mounting point of a rail for rail traffic, in particular on a railway rail, wherein the rail monitoring element comprises a strain sensor element having a support, on which a strain gauge, in particular an optical fibre having a fibre Bragg grating, is fixed, comprising the following method steps: determining the temperature of the rail and/or the rail monitoring element at the mounting point, checking whether the determined temperature is within a predefined temperature interval, applying heat or cold to the rail and/or the rail monitoring element at the mounting point if the determined temperature is not within the predefined temperature interval, positioning and fixing the support of the rail monitoring element at the mounting point, wherein the fixing is carried out adhesively. The method according to the invention can firstly be carried out simply and, in addition, permits reliable and accurate monitoring of the rail by using a strain sensor element.

IPC Classes  ?

• B61L 1/06 - Electric devices associated with track actuated by deformation of railElectric devices associated with track actuated by vibration in rail
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles

Abstract

A Global Navigation Satellite System receiver for position determination receives from a multitude of satellites a respective GNSS code signal, which are correlated with a reference code signal to obtain an autocorrelation function. A multitude of function values of the autocorrelation function at different discrete chip spacings (chosen asymmetrically with respect to a prompt chip spacing) are analyzed and used in obtaining a test metric. Using the test metric, a decision is made whether the received GNSS code signal is suitable or unsuitable (thereafter excluded) for a position determination due to multipath signal components. A bias removal is performed taking into account corresponding function values of an autocorrelation function that would result from a received GNSS code signal of the satellite unaffected by multipath signal components. This provides a simple method for operating a GNSS receiver minimizing errors in position determination caused by multipath signal components.

IPC Classes  ?

• G01S 19/00 - Satellite radio beacon positioning systemsDetermining position, velocity or attitude using signals transmitted by such systems
• G01S 19/23 - Testing, monitoring, correcting or calibrating of a receiver element
• G06F 17/18 - Complex mathematical operations for evaluating statistical data
• H04L 27/227 - Demodulator circuitsReceiver circuits using coherent demodulation

Abstract

A method for operating a GNSS (=Global navigation satellite system) receiver (12), wherein for a position determination, the GNSS receiver (12) receives from a multitude of satellites (10) a respective GNSS code signal (30), and wherein for each signal (11) from a satellite (10), the received GNSS code signal (30) is correlated with a reference code signal (31) generated by the GNSS receiver (12) to obtain an autocorrelation function (70), wherein a multitude of function values (Ai) of the autocorrelation function (70) at different discrete chip spacings (Pi) are analyzed and used in obtaining a test metric (TM), is characterized in that using the test metric (TM), a decision is made whether the received GNSS code signal (30) is suitable for a position determination or unsuitable for a position determination due to multipath signal components, that a position determination of the GNSS receiver (12) is made based on the received GNSS code signals (30) from the multitude of satellites (10), with received GNSS code signals (30) considered unsuitable for position determination being excluded from the position determination, that the chip spacings (Pi) of the multitude of function values (Ai) of the autocorrelation function (70) are chosen asymmetrically with respect to a prompt chip spacing (P0), that during analysis of the multitude of function values (Ai) of the autocorrelation function (70), a bias removal is performed, taking into account corresponding function values of an autocorrelation function (60) that would result from a received GNSS code signal (30) of the satellite (10) unaffected by multipath signal components, and that the multitude of function values (Ai) contribute to the test metric (TM) in an order higher than first order. The invention provides a simple method for operating a GNSS receiver, which minimizes errors in position determination caused by multipath signal components.

IPC Classes  ?

• G01S 19/22 - Multipath-related issues

Abstract

A method for safe supervising train integrity includes: (a) acquiring first position data of the first carriage via a first tracking unit which is installed on-board of a first carriage and acquiring second position data of a second carriage via a second tracking unit which is installed on-board of the second carriage, wherein the position data is related to a rail route coordinate system; (b) determining a deviation between a reference value which depends on the length of the train and a position value which depends on position data of at least one of the tracking units; (c) detecting whether train integrity is given by analyzing the deviation; (d) repeating steps a) through c); wherein the tracking units are part of on-board units of an automatic train protection system. Thus a cost-efficient method for supervising train integrity which complies with safety level SIL4 can be realized.

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 23/34 - Control, warning or like safety means along the route or between vehicles or trains for indicating the distance between vehicles or trains by the transmission of signals therebetween

Abstract

A method for determining the speed of a rail-bound vehicle, includes the following method steps: detection of a reference element, wherein the first detection device generates a first detection signal when the reference element passes the first detection device; detection of the reference element, wherein the second detection device generates a second detection signal when the reference element passes the second detection device; conversion of the detection signals into digital detection pulses; determining the time difference between the two detection pulses; wherein an XOR signal is generated in an XOR gate by linking the first and the second detection pulse using an XOR logic; and the duration of the XOR signal is determined; and wherein the time difference between the two detection pulses is determined by halving the duration of the XOR signal. The speed can be measured with higher accuracy when using an existing infrastructure without additional assembly work.

IPC Classes  ?

• G01P 3/66 - Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles

Abstract

The invention concerns a method for evaluation of an authorization of a component instance (A, B, C, D, E), i.e. whether the execution of a component instance (A, B, C, D, E) within a component framework (1, 1') in a safety relevant context is authorized by an approval authority, the method comprising : providing the information necessary for the evaluation in a form suitable for automated processing by software; providing a list of approval statements (7) each comprising a recommendation and a scope, wherein the scope is specified by means of metadata; providing an approval control function (5) with access to the list of approval statements (7), and carrying out an approval control by means of the approval control function (5).The inventive method enable to host a multitude of application modules on one computing node while preserving or even reinforcing the safety levels reached by current practices.

IPC Classes  ?

• G06F 21/12 - Protecting executable software
• G06F 21/51 - Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems at application loading time, e.g. accepting, rejecting, starting or inhibiting executable software based on integrity or source reliability
• G06Q 50/26 - Government or public services
• G06F 9/44 - Arrangements for executing specific programs

Abstract

A server device (1; 30), operating a piece of software for controlling a function of a rail transport safety system, wherein the software (11, 12, 13; 31, 32, 33) operates at least two processes (11a-11b; 12a-12b; 13a-13b; 31a-31c; 32a-32c; 33a-33c) physically separately from one another, the results of which are compared with one another in order to perform control of the function, is characterized in that the software (11, 12, 13; 31, 32, 33) is operated on a virtual operating level of the server device (1; 30), in that the server device (1; 30) comprises at least two physically separate server clusters (SC1, SC2, SC3), and in that the software (11, 12, 13; 31, 32, 33) comprises at least two parts that are installed on different server clusters from the at least two server clusters (SC1, SC2, SC3), so that the at least two processes (11a-11 b; 12a-12b; 13a- 13b; 31a-31c; 32a-32c; 33a-33c) are operated on different server clusters from the at least two server clusters (SC1, SC2, SC3). The invention provides a server device in which improved availability of a software application can be ensured amid simultaneously high dependability of the rail transport.

IPC Classes  ?

• B61L 19/06 - Interlocking devices having electrical operation
• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor

Abstract

The invention concerns a method for safe supervising train integrity, the method comprising: a) acquiring first position data (PI) of the first carriage (C1) via a first tracking unit (TU1) which is installed on-board of a first carriage (C1) and acquiring second position data (P2) of a second carriage (C2) via a second tracking unit (TU2) which is installed on-board of the second carriage (C2), wherein the position data (P1, P3) is related to a rail route coordinate system. b) determining a deviation Δ between a reference value which depends on the length L of the train and a position value which depends on position data (P1, P2) of at least one of the tracking units (TU1, TU2); c) detecting whether train integrity is given by analyzing the deviation; d) Repeating steps a) through c); wherein the tracking units (TU1, TU2) are part of on-board units (OBU1, OBU2) of an automatic train protection system. Thus a cost-efficient method for supervising train integrity which complies with safety level SIL4 can be realized.

IPC Classes  ?

• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains

Abstract

The invention concerns a method for safe supervising train integrity, the method comprising: a) acquiring first position data (PI) of the first carriage (C1) via a first tracking unit (TU1) which is installed on-board of a first carriage (C1) and acquiring second position data (P2) of a second carriage (C2) via a second tracking unit (TU2) which is installed on-board of the second carriage (C2), wherein the position data (P1, P3) is related to a rail route coordinate system. b) determining a deviation ? between a reference value which depends on the length L of the train and a position value which depends on position data (P1, P2) of at least one of the tracking units (TU1, TU2); c) detecting whether train integrity is given by analyzing the deviation; d) Repeating steps a) through c); wherein the tracking units (TU1, TU2) are part of on-board units (OBU1, OBU2) of an automatic train protection system. Thus a cost-efficient method for supervising train integrity which complies with safety level SIL4 can be realized.

IPC Classes  ?

• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains

Abstract

A method for maintenance support comprising interaction between an maintainer at an maintenance area and an expert at a remote located expert, wherein the method comprises the following steps: • detection of an object to be maintained by analyzing video data generated by a head mounted camera; • streaming of the video data from the maintainer to the expert; • transmission of support data from the expert to the maintainer; is characterized in that the support data comprise pointer data for creating a pointer to be displayed to the maintainer, wherein the pointer is assigned to the detected object, and the pointer is displayed at a see-through display of augmented reality glasses.

IPC Classes  ?

• G06Q 10/00 - AdministrationManagement

Abstract

The invention concerns a method for controlling vehicles in case of a conflict situation, with the following steps: (a) determination of an actual operation state of the vehicle and/or of a planned route; (b) classification of the conflict situation thereby determining an action space; (c) searching a knowledge base comprising rated solutions which are assigned to an operation state equal or similar to the actual operation state; in case one or more rated solutions are found which are assigned to an operation state which is similar to the actual operation state: (d) selection of at least one rated solution from the knowledge base; (e) optimization of the at least one selected solution applied to the actual operation state, wherein the optimization uses a genetic algorithm and results in an optimized solution; (f) carrying out the optimized solution. Suitable solutions to solve the conflict can be found with reduced time effort.

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor

Abstract

A method for controlling a rail vehicle (12) within a working area is provided, wherein a working area (16) is allocated (104) to the rail vehicle (12) by an external control device (14), wherein the external control device (14) determines (110) the position of the rail vehicle (12) within the working area (16), and wherein the external control device (14) controls a driving condition of the rail vehicle (12), in order to prevent the rail vehicle (12) from leaving the working area (16). This method allows save operation of a rail vehicle within a working area of a railway network.

IPC Classes  ?

• B61L 27/00 - Central railway traffic control systemsTrackside controlCommunication systems specially adapted therefor
• B61L 15/00 - Indicators provided on the vehicle or train for signalling purposes
• B61L 23/00 - Control, warning or like safety means along the route or between vehicles or trains
• B61L 3/12 - Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control controlling electrically using magnetic or electrostatic inductionDevices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control controlling electrically using radio waves
• B61L 21/06 - Vehicle-on-line indicationMonitoring locking and release of the route
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains

Abstract

The invention relates to a method for determining the speed of a rail-bound vehicle, comprising the following steps: detecting a reference element (2), wherein a first detection signal (4a) is produced by the first detection device (3a) when the reference element (2) passes the first detection device (3a); detecting the reference element (2), wherein a second detection signal (4b) is produced by the second detection device (3b) when the reference element (2) passes the second detection device (3b); converting the detection signals (4a, 4b) into digital detection pulses (7a, 7b); determining the time difference between the two detection pulses (7a, 7b); characterized in that an XOR signal (8) is produced by linking the first and the second detection pulses (7a, 7b) by means of an XOR operation in an XOR gate (12), that the duration of the XOR signal (8) is determined, and that the time difference between the two detection pulses (7a, 7b) is determined by halving the duration of the XOR signal (8). Speed measurement with greater accuracy is thereby enabled while using existing infrastructure and without additional assembly expenditure.

IPC Classes  ?

• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles

Abstract

The invention relates to a method for determining the speed of a rail-bound vehicle, comprising the following steps: detecting a reference element (2), wherein a first detection signal (4a) is produced by the first detection device (3a) when the reference element (2) passes the first detection device (3a); detecting the reference element (2), wherein a second detection signal (4b) is produced by the second detection device (3b) when the reference element (2) passes the second detection device (3b); converting the detection signals (4a, 4b) into digital detection pulses (7a, 7b); determining the time difference between the two detection pulses (7a, 7b); characterized in that an XOR signal (8) is produced by linking the first and the second detection pulses (7a, 7b) by means of an XOR operation in an XOR gate (12), that the duration of the XOR signal (8) is determined, and that the time difference between the two detection pulses (7a, 7b) is determined by halving the duration of the XOR signal (8). Speed measurement with greater accuracy is thereby enabled while using existing infrastructure and without additional assembly expenditure.

IPC Classes  ?

• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles

Abstract

At least one fiber-optic sensor unit measures a mechanical variable which affects a rail having a certain length and a neutral axis that extends along said length of the rail. The at least one fiber-optic sensor unit is disposed at an angle of 30° to 60°, in particular 45°, relative to the neutral axis or at an angle of −30° to −60°, in particular −45°, relative to the neutral axis. The at least one fiber-optic sensor unit is irradiated with primary light in order to generate a signaling light in a reflection mode or transmission mode. The intensity of the signaling light is sensed. The signaling light is evaluated.

IPC Classes  ?

• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
• G01M 11/08 - Testing mechanical properties
• B61K 9/08 - Measuring installations for surveying permanent way

Abstract

The invention relates to a fastening device for fastening a sensor element (7) to a rail (5), wherein the fastening device has at least one clamping element (1) for clamping the sensor element (7) against the rail (5). Said fastening device is characterized in that the clamping element (8) is provided with a conductor element (8), which extends at least over a point (9) of the clamping element (1) at risk of fracture and which is part of a closed electrical circuit in the correctly mounted state of the sensor element (7). In this way, reliable detection of the mounting state of the sensor element is enabled even if the clamping element is damaged.

IPC Classes  ?

• B61L 1/20 - Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
• B61L 1/16 - Devices for counting axlesDevices for counting vehicles

Abstract

The invention relates to an axle counting method for rail-bound vehicles, having the following method steps: .cndot. coupling light into at least one sensor fiber (SF, SF1, SF2), the sensor fiber (SF, SF1, SF2) comprising at least one fiber Bragg grating (FBG1, FBG2) mounted on a rail (T), wherein each fiber Bragg grating (FBG1, FBG2) has a reflection spectrum with a reflection peak (P1, P2) at a Bragg wavelength (.lambda.1, .lambda.2) with a half-value width (FWHM), .cndot. generating a differential signal of two shear stress signals by detecting and filtering the time intensity curve of the light power reflected through the two mutually spaced fiber Bragg gratings (FBG1, FBG2, FBG2'), and .cndot. generating a wheel signal if the deferential signal exceeds a specified shear stress differential threshold.

IPC Classes  ?

• B61L 1/16 - Devices for counting axlesDevices for counting vehicles
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis

Abstract

Described is a use of at least one fiber-optic sensor unit for measuring a mechanical variable which affects a rail having a certain length and a neutral fiber that extends along said length of the rail. The at least one fiber-optic sensor unit is disposed at an angle of 30° to 60°, in particular 45°, relative to the neutral fiber or at an angle of -30° to -60°, in particular - 45°, relative to the neutral fiber. The at least one fiber-optic sensor unit is irradiated with primary light in order to generate a signaling light in a reflection mode or transmission mode. The intensity of the signaling light is sensed. The signaling light is evaluated.

IPC Classes  ?

• G01M 11/08 - Testing mechanical properties
• B61K 9/08 - Measuring installations for surveying permanent way
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
• G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis

Abstract

Described is a Fiber-optic sensor unit for detecting a mechanical force acting on a rail, comprising an optical fiber, a fiber Bragg grating provided in the optical fiber which has a Bragg wavelength that depends on the mechanical force, a converter structure, wherein the converter structure has a signal amplification lever, and an edge filter for filtering the first part of the signal light.

IPC Classes  ?

• G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
• B61L 23/04 - Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route