The present disclosure relates to an alarm circuit (130) comprising an alarm mechanism with a wireless communication interface and a sensor for sensing a relative displacement of a frame (105) mounted on ground engaging wheels from a first position; the sensor being in communication with the alarm mechanism for activating the alarm mechanism if the frame is displaced beyond a predetermined threshold. The alarm circuit is accommodated in a housing configured to be mounted internally within the frame (105). The alarm circuit further comprises a transmission mechanism incorporated in to the configuration of the frame, for overcoming a Faraday effect generated by the configuration of the frame. The transmission mechanism comprises a conducting material located at least partially externally of an interior volume of the frame.


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    Title :

    A BICYCLE SECURITY SYSTEM


    Additional title:

    FAHRRAD SICHERUNGS SYSTEM
    SYSTÈME DE SÉCURITÉ DE VÉLO


    Contributors:

    Publication date :

    2019-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62H CYCLE STANDS , Fahrrad- oder Motorradständer



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