Abstract: Circuitry comprises memory address translation circuitry to access memory circuitry storing translation information defining memory address translations from input memory addresses to respective output memory addresses; in which the translation information stored by the memory circuitry comprises a hierarchy of page table levels from a highest page table level to a lowest page table level, each page table level having one or more level tables each comprising two or more entries, in which an entry of a level table at a page table level other than a last page table level of the hierarchy points to a level table at a next lower page table level in the hierarchy; the memory address translation circuitry being configured to select an entry of a level table at each page table level according to a selection value, the selection value being dependent upon a portion, applicable to that page table level, of a given input memory address; in which the memory circuitry is configured to store entries as groups of entries,

Abstract: Circuitry comprises memory address translation circuitry to access memory circuitry storing translation information defining memory address translations from input memory addresses to respective output memory addresses; in which the translation information stored by the memory circuitry comprises a hierarchy of page table levels from a highest page table level to a lowest page table level, each page table level having one or more level tables each comprising two or more entries, in which an entry of a level table at a page table level other than a last page table level of the hierarchy points to a level table at a next lower page table level in the hierarchy; the memory address translation circuitry being configured to select an entry of a level table at each page table level according to a selection value, the selection value being dependent upon a portion, applicable to that page table level, of a given input memory address; in which the memory circuitry is configured to store entries as groups of entries,

Abstract: A method for locating a railway vehicle includes: measuring an acoustic signature of a railway vehicle passing over a railway switch for switching between a first railway track and a second railway track diverging from the first railway track, using a distributed acoustic sensing apparatus including an optical fiber sensor placed along the railway switch; analyzing the measured acoustic signature, using an electronic processing unit, by identifying, in the measured acoustic signature, vibration patterns representative of track geometry and/or track curvature; and determining which of the first railway track or the second railway track is occupied by the railway vehicle, using the electronic processing unit, based on the identified vibration patterns.

Abstract: The present invention concerns an insulating joint for electrically insulating a pair of adjacent rail sections of a railway track, each rail section extending along a longitudinal axis and defining at least one connecting surface substantially perpendicular to the longitudinal axis and a plurality of lateral surfaces extending along the longitudinal axis. The insulating joint comprises a joint body having substantially the same cross section as the rail sections and defining two contacting surfaces, each contacting surface being intended to be in contact with the connecting surface of one of the rail sections. The joint body is made from an insulating material comprising a reinforcing structure made of metal or carbon fibers, the reinforcing structure being placed inside of the joint body with a distance from the contacting surfaces.

Abstract: A train detection system for a railway track defines a first lateral side and a second lateral side opposite the first lateral side. Two cameras are arranged along the railway track spaced apart from each other. Each camera is placed on either the first lateral side or the second lateral side. The system includes at least one passive target. Each of the passive targets is placed within the field of view of at least one of the cameras and on the opposite lateral side of the railway track with respect to the at least one of the cameras in whose field of view the respective passive target is placed. The system also includes at least one controller adapted to recognise the passive target in the images provided by at least one of the cameras to the controller to determine whether a train is located on the railway track.

Abstract: A method for locating a railway vehicle includes: measuring an acoustic signature of a railway vehicle passing over a railway switch for switching between a first railway track and a second railway track diverging from the first railway track, using a distributed acoustic sensing apparatus including an optical fiber sensor placed along the railway switch; analyzing the measured acoustic signature, using an electronic processing unit, by identifying, in the measured acoustic signature, vibration patterns representative of track geometry and/or track curvature; and determining which of the first railway track or the second railway track is occupied by the railway vehicle, using the electronic processing unit, based on the identified vibration patterns.

Abstract: This automatic vehicle control apparatus comprises a first image sensor positioned on a vehicle, able to capture a first global image of a first scene, including an area in front of the vehicle, in a first field of view of said first image sensor; a track occupancy detector for receiving the first global image and deducing therefrom a track occupancy of the vehicle among at least two set of parallel tracks positioned in front of the vehicle; a distinguishable object disposed in the first field of view; and a proper functioning checking apparatus configured for searching, in the first global image, a first specific image of the distinguishable object, and for generating an alert signal in case the first specific image is not found in the first global image.

Abstract: The invention concerns a method for determining the location of a railway vehicle comprising a first navigation module determining a regular resolution position of the railway vehicle with a first accuracy measurement and a second navigation module determining a high resolution position of the railway vehicle with a second accuracy measurement, using the received signals. The method comprises the steps of determining a first confidence area around the regular resolution position, based on the first accuracy measurement, of determining a second confidence area around the high precision position, based on the second accuracy measurement, and of assigning a weight of confidence to the knowing of the actual location of the railway vehicle, by analyzing the overlay of the first and the second confidence areas and the first and the second accuracy measurements.

Abstract: A train detection system for a railway track section placed on a track bed, the track section having two rails, the train detection system comprising at least one cable, the cable being placed across the two rails, a transmitter connected to the cable and configured to emit an emitted signal into the at least one cable, a receiver connected to the cable and configured to receive a received signal related to the emitted signal having passed through the cable, and capable of determining, according to the received signal, between an unoccupied state where no railway vehicle is present on the track section, and an occupied state where the track section is occupied by a railway vehicle. The cable is buried under the track bed.

Abstract: A train detection system for a railway track defines a first lateral side and a second lateral side opposite the first lateral side. Two cameras are arranged along the railway track spaced apart from each other. Each camera is placed on either the first lateral side or the second lateral side. The system includes at least one passive target. Each of the passive targets is placed within the field of view of at least one of the cameras and on the opposite lateral side of the railway track with respect to the at least one of the cameras in whose field of view the respective passive target is placed. The system also includes at least one controller adapted to recognise the passive target in the images provided by at least one of the cameras to the controller to determine whether a train is located on the railway track.

Abstract: System for determining train information relative to a train moving along a railway track having a pressure measuring device placed along the railway track and arranged to measure the speed of an airflow generated by the train when moving on the railway track, and to generate a speed signal; and a controller arranged to receive said speed signal and to determine train information relative to the train in function of said speed signal.

Abstract: The invention concerns a method for determining the location of a railway vehicle comprising a first navigation module determining a regular resolution position of the railway vehicle with a first accuracy measurement and a second navigation module determining a high resolution position of the railway vehicle with a second accuracy measurement, using the received signals. The method comprises the steps of determining a first confidence area around the regular resolution position, based on the first accuracy measurement, of determining a second confidence area around the high precision position, based on the second accuracy measurement, and of assigning a weight of confidence to the knowing of the actual location of the railway vehicle, by analyzing the overlay of the first and the second confidence areas and the first and the second accuracy measurements.

Abstract: The present invention concerns an insulating joint for electrically insulating a pair of adjacent rail sections of a railway track, each rail section extending along a longitudinal axis and defining at least one connecting surface substantially perpendicular to the longitudinal axis and a plurality of lateral surfaces extending along the longitudinal axis. The insulating joint comprises a joint body having substantially the same cross section as the rail sections and defining two contacting surfaces, each contacting surface being intended to be in contact with the connecting surface of one of the rail sections. The joint body is made from an insulating material comprising a reinforcing structure made of metal or carbon fibers, the reinforcing structure being placed inside of the joint body with a distance from the contacting surfaces.

Abstract: This automatic vehicle control apparatus comprises a first image sensor positioned on a vehicle, able to capture a first global image of a first scene, including an area in front of the vehicle, in a first field of view of said first image sensor; a track occupancy detector for receiving the first global image and deducing therefrom a track occupancy of the vehicle among at least two set of parallel tracks positioned in front of the vehicle; a distinguishable object disposed in the first field of view; and a proper functioning checking apparatus configured for searching, in the first global image, a first specific image of the distinguishable object, and for generating an alert signal in case the first specific image is not found in the first global image.

Abstract: System for determining train information relative to a train moving along a railway track having a pressure measuring device placed along the railway track and arranged to measure the speed of an airflow generated by the train when moving on the railway track, and to generate a speed signal; and a controller arranged to receive said speed signal and to determine train information relative to the train in function of said speed signal.

Abstract: A method and system for identifying cargo-carrying vehicles (CCV) to be included in a vehicle system that are non-propulsion-generating vehicles scheduled to depart from a vehicle yard and travel to one or more destination locations at a predetermined departure time. Further includes, calculating a minimum tractive effort threshold required by one or more propulsion-generating vehicles (PGV) to propel the vehicle system to the one or more destination locations along a route within a predetermined time period. And selecting a set of one or more PGV from a larger group of PGV within the vehicle yard to be included in the vehicle system. The set of one or more PGV produce a tractive effort of at least the minimum tractive effort threshold, and having at least one of a lower fuel consumption or lower emissions than selecting one or more of the remaining PGV from the larger group of PGV, respectively.

Abstract: A method for vehicle control comprises determining a braking capability of a braking system of a vehicle, and modifying application of at least one control parameter by a control system of the vehicle based on the determined braking capability. Braking capability may be determined by activating the braking system of the vehicle to apply a braking force on the vehicle, and concurrently, applying a level of tractive effort of the vehicle that is sufficient to overcome the braking force. The braking capability is determined based on the level of tractive effort.

Abstract: A method and system for identifying cargo-carrying vehicles (CCV) to be included in a vehicle system that are non-propulsion-generating vehicles scheduled to depart from a vehicle yard and travel to one or more destination locations at a predetermined departure time. Further includes, calculating a minimum tractive effort threshold required by one or more propulsion-generating vehicles (PGV) to propel the vehicle system to the one or more destination locations along a route within a predetermined time period. And selecting a set of one or more PGV from a larger group of PGV within the vehicle yard to be included in the vehicle system. The set of one or more PGV produce a tractive effort of at least the minimum tractive effort threshold, and having at least one of a lower fuel consumption or lower emissions than selecting one or more of the remaining PGV from the larger group of PGV, respectively.

Abstract: A method and system for identifying cargo-carrying vehicles (CCV) to be included in a vehicle system that are non-propulsion-generating vehicles scheduled to depart from a vehicle yard and travel to one or more destination locations at a predetermined departure time. Further includes, calculating a minimum tractive effort threshold required by one or more propulsion-generating vehicles (PGV) to propel the vehicle system to the one or more destination locations along a route within a predetermined time period. And selecting a set of one or more PGV from a larger group of PGV within the vehicle yard to be included in the vehicle system. The set of one or more PGV produce a tractive effort of at least the minimum tractive effort threshold, and having at least one of a lower fuel consumption or lower emissions than selecting one or more of the remaining PGV from the larger group of PGV, respectively.

Abstract: A method for vehicle control comprises determining a braking capability of a braking system of a vehicle, and modifying application of at least one control parameter by a control system of the vehicle based on the determined braking capability. Braking capability may be determined by activating the braking system of the vehicle to apply a braking force on the vehicle, and concurrently, applying a level of tractive effort of the vehicle that is sufficient to overcome the braking force. The braking capability is determined based on the level of tractive effort.