This paper presents the development and implementation of an electronic axle detection system applied to trains passing a predetermined point on a railway. The system permits detection even if the train is travelling at a velocity of up to 350 Km/h, depending on the diameter of the train wheel. The system uses two coils placed on either side of the rail, one used as an emitter and the other as a receiver, which, as a result of the attenuation of the electromagnetic field between the coils, detect the passing of the train wheel. In contrast to other systems with similar characteristics, in this case the signal emitted is specially coded (using a 13-bit Barker code). On reception, a correlation algorithm (implemented in an FPGA) enables the signal emitted to be detected even if there is a low signal-to-noise ratio. By using this technique, the system is also able to reject a great deal of interference coming from electric motors or other electromagnetic sources. Furthermore, a slight variation of the frequency of modulation of the signal emitted allows two systems to be used with no interference between them; useful when the direction of travel has to be determined.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Train axle detector based signal codification with a barker code


    Contributors:
    Urena, J. (author) / Mazo, M. (author) / Garcia, J.J. (author) / Hernandez, A. (author) / Villadangos, J.M. (author) / Marron, M. (author) / Pastor, J. (author) / Escudero, S. (author) / Garcia, R. (author)


    Publication date :

    2001


    Size :

    4 Seiten, 6 Bilder, 4 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Train Axle Detector Based on Signal Codification with a Barker code

    García, J. Jesús / Ureña, Jesús / Villadangos, José M. et al. | SAE Technical Papers | 2001


    2001-01-3257 Train Axle Detector Based On Signal Codification With a Barker Code

    Urena, J. / Mazo, M. / Garcia, J. J. et al. | British Library Conference Proceedings | 2001


    Train axle connecting unit and train

    JIN XIHONG / LI MINGMING / ZENG YANJUN et al. | European Patent Office | 2023

    Free access

    TRAIN AXLE CONNECTING UNIT AND TRAIN

    ZHENG LONGGANG / LIU YONGQIANG / LI MINGMING et al. | European Patent Office | 2023

    Free access

    MULTI-AXLE FREIGHT TRAIN

    KIM NAM PO / YOU WON HEE | European Patent Office | 2015

    Free access