An elevator motion alert system is configured to alert a person (46) of an object (24, 26) moving in at least one hoistway (28) of an elevator system (20). The elevator motion alert system includes a sensor (40, 56) configured to detect object motion. A transmitter (42, 54) of the elevator motion alert system is carried by the object and is configured to transmit a pressure wave (50, 60) at a pre-defined frequency upon movement of the object. An electronic device (44) of the elevator motion alert system is configured to receive and process the pressure wave (50, 60) for alerting the person (46) of object movement.


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    Title :

    ELEVATOR MOTION ALERT SYSTEM


    Additional title:

    AUFZUGSBEWEGUNGSWARNSYSTEM
    SYSTÈME D'ALERTE DE MOUVEMENT D'ASCENSEUR


    Contributors:

    Publication date :

    2017-05-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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