In previous works, we have treated the collision-free path-planning problem for a nonholonomic mobile robot in a cluttered environment. We have used a method based on a representation of the obstacles on the robot's veloc- ity space. This representation is called Feasible Velocities Polygon (FVP). In this paper, we have extended our work to an articu- lated mobile robot evolving in a cluttered environment. This robot is composed by a differential mobile robot and one or several modules that together form the trailer which are linked by off-center joints. This kind of robot is a strongly constrained system. Even in a free environment, under some circumstances, the robot may be blocked by its trailers in its progression towards the goal. The proposed approach, compared to other methods, has the main advantage of in- tegrating anti-collision constraints between the articulated robot itself and the environment, in order to avoid and re- solve dead-lock situations. To show the capabilities of our method to lead the articulated robot to the final position in a stable way, a numerical result is presented.


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    Title :

    A Collision-Free Path Planner for Articulated Mobile Robots




    Publication date :

    2007-09-01


    Size :

    635698 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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