A lift car movement control system has a reference strip 118, such as a QR code strip, carrying positioning information extending along the lift shaft with first and second sensors 120 on the lift car reading the reference strip. A lift controller 100 determines, based on information received from the first sensor, a first parameter relating to the movement of the lift car in the lift shaft, and to control movement of the lift car based on the first parameter, and determine, based on information received from the second sensor, a second parameter relating to the movement of the lift car in the lift shaft, and to modify the movement of the lift car based on the second parameter. The lift controller may have a means for recording data relating to the floor positions in the shaft and based upon origin and destination floors may calculate a speed profile for the journey which may minimise jerk. A brake controller 900 has an actuator 902, which may actuate a pair of shoes on a sheave, activated using a switch BR and control loop 907, 908. The controller may also monitor the brake or an overspeed governor.


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    Titel :

    Lift control


    Beteiligte:

    Erscheinungsdatum :

    28.08.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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