A telematics device located on-board a vehicle or other enclosure assists in detecting a glass break event for a window of the vehicle or enclosure based on acceleration measurements obtained from acceleration sensors of the telematics device. A power spectral density (PSD) for a plurality of packets of acceleration data within a higher frequency band and/or a lower frequency band are determined. A glass break event is detected upon determining that an average PSD for the higher frequency band exceeds an upper PSD threshold. Alternatively or additionally, a glass break event is detected upon determining that a second maximum PSD is greater than a first PSD threshold for the lower frequency band, and that a difference between the second maximum PSD and a minimum PSD is greater than a second PSD threshold for the lower frequency band.


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    Title :

    ACCELERATION-BASED WINDOW GLASS BREAK DETECTION


    Contributors:

    Publication date :

    2019-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



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