Free-flying space robotic devices, in which manipulators are mounted on a thruster-equipped spacecraft, will assist in the construction, repair and maintenance of satellites and future space stations. Operation in a free-floating mode, in which spacecraft thrusters are turned off, increases a system's life. The teleoperation of free-floating systems is complicated due to the dynamic coupling between a system's manipulator and its spacecraft. Controlling such a system using visual feedback is not straightforward, especially when the task is to move the end-effector with respect to an inertially fixed target. In addition, free-floating systems are subject to path-dependent Dynamic Singularities, which restrict the paths by which Path Dependent Workspace points can be reached. These characteristics can result in increased operator burden during system teleoperation. A teleoperation planning system to assist the operator of a free-floating space robot is presented. Given an initial and a target end-effector location, and an optimal connecting path, this system examines the feasibility of reaching the target from the initial location. If a problem is detected, the system proposes an alternative feasible path. An example demonstrates the value of such a teleoperator planning aid.


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    Titel :

    Teleoperation of free-floating space manipulator systems


    Beteiligte:

    Kongress:

    Telemanipulator Technology ; 1992 ; Boston,MA,United States


    Erschienen in:

    Erscheinungsdatum :

    26.03.1993





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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