A containment area can be defined by a single cable carrying an asymmetric electromagnetic signal that generates a magnetic field comprising an asymmetric waveform. A single inductor circuit configured to detect a single axis of the magnetic field can detect the asymmetric waveform and determine which direction the inductor is traveling relative to the cable. A human-propelled cart can have a wheel that includes the single inductor circuit and detect whether the cart is being pushed from inside-to-outside the containment area (which may reflect the cart is being stolen or improperly used) or from outside-to-inside (which may reflect the cart is being returned). The cart can include an anti-theft system (e.g., a locking or braking wheel), which can be triggered if the cart is being moved from inside to outside the containment area. The single cable, single inductor system can be less expensive and more efficient than multi-cable, multi-inductor systems.


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    Title :

    DIRECTION CROSSING DETECTOR FOR CONTAINMENT BOUNDARY


    Additional title:

    RICHTUNGSKREUZENDER DETEKTOR FÜR EINSCHLUSSGRENZE
    DÉTECTEUR DE FRANCHISSEMENT DE DIRECTION POUR UNE LIMITE DE CONFINEMENT


    Contributors:

    Publication date :

    2022-04-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01V Geophysik , GEOPHYSICS / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



    DIRECTION CROSSING DETECTOR FOR CONTAINMENT BOUNDARY

    CARTER SCOTT J / CHANDLER JAMES E | European Patent Office | 2018

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    DIRECTION CROSSING DETECTOR FOR CONTAINMENT BOUNDARY

    CARTER SCOTT J / CHANDLER JAMES E | European Patent Office | 2018

    Free access

    Direction crossing detector for containment boundary

    CARTER SCOTT J / CHANDLER JAMES E | European Patent Office | 2019

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    DIRECTION CROSSING DETECTOR FOR CONTAINMENT BOUNDARY

    CARTER SCOTT J / CHANDLER JAMES E | European Patent Office | 2018

    Free access

    Direction crossing detector for containment boundary

    CARTER SCOTT J / CHANDLER JAMES E | European Patent Office | 2017

    Free access