A door system for an elevator system includes: a door frame framing a door opening and having a door jamb; and a monitoring unit mounted on the door frame and monitoring a region of the door opening. A region of the door frame has a retroreflective surface that extends over at least 20% of a height of the door jamb. The monitoring unit has a light source that illuminates the retroreflective surface with light beams and a light sensor that measures the angle-resolved intensity of the light beams reflected by the retroreflective surface. The monitoring unit determines an output value based upon the angle-resolved intensity and detects when the angle-resolved intensity falls below a threshold intensity for at least one angle. The output value includes whether there is an obstacle in the monitored region.


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    Title :

    TÜRSYSTEM FÜR EINE AUFZUGSANLAGE


    Additional title:

    DOOR SYSTEM FOR A LIFT INSTALLATION
    SYSTÈME DE PORTE POUR INSTALLATION D'ASCENSEUR


    Contributors:

    Publication date :

    2024-10-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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