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    초록·키워드

    When a task requires two robot arms to move in a cooperative manner sharing a common workspace, potential collision exists between the two robot arms. In this paper, a novel approach for collision-free trajectory planning along paths of two SCARA-type robot arms is presented. Specifically, in order to describe potential collision between the links of two moving robot arms along the designated paths, an explicit form of "Virtual Obstacle" is adopted, according to which links of one robot arm are made to grow while the other robot arm is forced to shrink as a point on the path. Then, a notion of "Coordination Chart" is introduced to visualize the collision-free relationship of two trajectories.

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      UCI(KEPA) : I410-ECN-0101-2014-569-001396639