An elevator safety system comprises a plurality of door safety units (12); a communication bus (16) connecting the plurality of door safety units (12); a control unit (13) connected to the communication bus (16) for allowing communication between the plurality of door safety units (12) and the control unit (13); and at least one position sensor (19) configured for providing information about the current position of an elevator car (6) within a hoistway (4). Each door safety unit (12) is assigned to an elevator hoistway door (10) and configured for monitoring a condition of the assigned elevator hoistway door (10). The control unit (13) is configured for polling door safety units (12) included in a subset (S1, S2) of the door safety units (12) which are located within a predetermined distance (D1, D2) from the current position of the elevator car (6). The control unit (13) is further configured for polling the door safety units (12) not included in said subset (S1, S2) less frequently or not at all.


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    Title :

    ELEVATOR SAFETY SYSTEM, ELEVATOR SYSTEM AND METHOD OF OPERATING AN ELEVATOR SYSTEM


    Additional title:

    SICHERHEITSSYSTEM FÜR EINEN AUFZUG, AUFZUGSYSTEM UND VERFAHREN ZUM BETRIEB EINES AUFZUGSYSTEMS
    SYSTÈME DE SÉCURITÉ D'ASCENSEUR, SYSTÈME D'ASCENSEUR ET PROCÉDÉ DE FONCTIONNEMENT D'UN SYSTÈME D'ASCENSEUR


    Contributors:

    Publication date :

    2020-06-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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