The invention relates to a method in a theft detection unit wherein the unit is secured to a movable object. The method repeatedly receives acceleration data from a three axes acceleration sensor (4), determines a reference orientation of the three axes acceleration sensor from the acceleration data, determines a difference signal representing a change in angle of the received acceleration data with respect to the reference orientation; and generates a control signal for activating an alarm when the difference signal exceeds a first threshold value for a predefined period of time. The method is very suitable for an object that rolls repeatedly from one side to the other without generating a false alarm due to said regular movement.


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    Title :

    A THEFT DETECTION UNIT AND A THEFT DETECTION METHOD USING THE UNIT


    Additional title:

    DIEBSTAHLERKENNUNGSEINHEIT UND DIEBSTAHLERKENNUNGSVERFAHREN MIT DIESER EINHEIT
    UNITÉ DE DÉTECTION DE VOL ET PROCÉDÉ DE DÉTECTION DE VOL AU MOYEN DE L'UNITÉ


    Contributors:

    Publication date :

    2019-02-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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