A vehicle communicates with a remote key fob while ensuring an RF environment is sufficient to maintain adequate power from an RF-harvesting power supply that allows the fob to operate without a battery. The vehicle has a receiver adapted to detect a backscatter communication signal from the fob. A harvesting emulator in the vehicle is responsive to ambient RF around the vehicle to duplicate a concurrent response of the fob power supply. A vehicle-powered RF transmitter is activated to broadcast energizing RF radiation around the vehicle when the duplicated response is below a threshold.


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    Titel :

    Ambient RF backscatter communication for vehicle remote control and sensing


    Beteiligte:

    Erscheinungsdatum :

    2021-02-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G06K Erkennen von Daten , RECOGNITION OF DATA / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



    AMBIENT RF BACKSCATTER COMMUNICATION FOR VEHICLE REMOTE CONTROL AND SENSING

    ELANGOVAN VIVEKANANDH / DELONG AARON M / VAN WIEMEERSCH JOHN R | Europäisches Patentamt | 2020

    Freier Zugriff

    Ambient RF backscatter communication for vehicle remote control

    ELANGOVAN VIVEKANANDH / DELONG AARON M / VAN WIEMEERSCH JOHN R | Europäisches Patentamt | 2020

    Freier Zugriff


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    Zeng, Tengchan / Wang, Gongpu / Wang, Yanwen et al. | IEEE | 2016