Snag detection includes monitoring angular deflection of the load (110) with respect to an at-rest position, and halting movement of the crane in a direction of increasing angular deflection. Controlling off center lifting includes detecting a side load condition for a load, and preventing a hoist operation when the side load condition is detected. Auto-centering a load includes determining a position of a block coupled to the load with respect to a trolley (104) of the crane, and centering the trolley over the block (104) prior to a moving operation. Centering includes comparing a position of a block marker (116) using a trolley camera (114) to a known centered position of the marker with respect to the camera, and moving the trolley to match the determined position of the marker to its known centered position.


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    Title :

    CRANE MOTION CONTROL


    Additional title:

    COMMANDE DE DEPLACEMENT DE GRUE


    Contributors:

    Publication date :

    2016-02-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES



    CRANE MOTION CONTROL

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    CRANE MOTION CONTROL

    SORENSEN KHALID LIEF / SINGHOSE WILLIAM | European Patent Office | 2016

    Free access