INSPECTION OF RAIL HEALTH
    84.
    发明申请

    公开(公告)号:US20220135094A1

    公开(公告)日:2022-05-05

    申请号:US17264674

    申请日:2019-07-23

    Abstract: A method and system for inspecting a rail by guided waves, the rail being instrumented by sensors. The method comprises the steps of receiving elastic wave measurements from one or more sensors, as a train passes, releasing energy as guided waves into the rail; and of determining a function representative of the impulse response of the rail and the sensors. Developments describe how to determine the existence, position and characterisation of a defect in the rail (e.g. fracture, incipient fracture, etc.), the use of inter-correlation analyses, correlation of the coda of correlations, Passive Inverse Filter, imaging techniques. Other aspects are described for exploring rail defects: sensor position and movement, acquisition time, sampling frequency, frequency filters, amplifications, techniques for learning during successive train passes, signal injection by transducers. Software aspects are described.

    RAILWAY VEHICLE BOGIE, ASSOCIATED VEHICLE AND AXLE INSTALLATION METHOD

    公开(公告)号:US20220089200A1

    公开(公告)日:2022-03-24

    申请号:US17448347

    申请日:2021-09-21

    Abstract: A bogie for a railway vehicle includes a frame, at least one axle, at least one axle box internally receiving the at least one axle, and a suspension of each axle box on the frame. The suspension includes an arm supporting the axle box and at least one elastic member interposed between the arm and the frame. The frame includes a cavity for receiving each elastic member. The cavity includes an opening and a bottom. An upper end of the elastic member is engaged in the cavity through the opening and bears on the bottom.

    Method and system for health assessment of a track circuit and/or of a track section

    公开(公告)号:US11260888B2

    公开(公告)日:2022-03-01

    申请号:US16193444

    申请日:2018-11-16

    Abstract: A method and system for health assessment of a track circuit and/or of a track section, the track circuit being configured for detecting the presence of a vehicle on the track section between a transmitting end and a receiving end of the track circuit. The method, implemented by an electronic device, comprises obtaining, from a sensor device placed near the receiving end, samples of an electrical parameter of an electric signal transmitted between the transmitting end and the receiving end of the track section, forming a temporal series of received samples, applying an automatic clustering algorithm to separate the received samples in a predetermined number of clusters, selecting one of the clusters and determining, for the selected cluster, a first peak value of the received samples classified within the selected cluster, and calculating a track circuit health indicator depending on the first peak value determined for the selected cluster.

    METHOD FOR SENDING INFORMATION TO AN INDIVIDUAL LOCATED IN THE ENVIRONMENT OF A VEHICLE

    公开(公告)号:US20220009533A1

    公开(公告)日:2022-01-13

    申请号:US17292696

    申请日:2019-11-08

    Inventor: Thomas BRUEL

    Abstract: The present invention relates to a method for sending information to an individual (11) located in the environment of a vehicle (10), the method comprising the following steps: acquiring an image of the environment of the vehicle (10), detecting, where applicable, at least one individual (11) on the acquired image, determining a probability of collision between the individual (11) detected on the acquired image and the vehicle (10), sending at least one item of information to the detected individual (11), the information sent depending on the determined probability of collision, the steps of detecting, determining and sending being repeated, for the same individual (11), with subsequent acquired images as long as said individual (11) is detected on said images and as long as the probability of collision is greater than a threshold.

    On-board device for recharging an electric vehicle by conduction

    公开(公告)号:US11152784B2

    公开(公告)日:2021-10-19

    申请号:US16440290

    申请日:2019-06-13

    Abstract: A device is electrically connected to first and second terminals of an energy collector and provided with first and second electrical contacts intended to be placed in contact, for the electrical supply of the energy collector, respectively with first and second conjugated electrical contacts of a supply device on the ground, in turn electrically connected to an electrical power source. The device has a mesh connecting the second electrical contact and an output terminal connected to the second terminal of the energy collector, the mesh having a diode inserted between the second electrical contact and the second terminal of the energy collector so as to avoid the circulation of a current toward the second terminal of the energy collector.

    Method, system, and software code for calibration of rail track circuits, and related rail track circuit

    公开(公告)号:US11148690B2

    公开(公告)日:2021-10-19

    申请号:US16367936

    申请日:2019-03-28

    Abstract: Method, system and software code for calibrating a rail track circuit comprising a plurality of rails coupled to form a track section having a predefined length, a transmit processing unit coupled to the track section at a first end of the track section, and a receive processing unit coupled at the second end of the track section. A transfer function between a transmit voltage applied by the transmit processing unit at the track section and a resulting receive current detected at the receive processing unit is first determined and then applied to the rail track circuit for automatic initial calibration or recalibration.

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