Abstract
Reporters obtained the following quote from the background information supplied by the inventors:“When a robot, such as an industrial robot or a cooperative ro bot, and a person coexist or work together,safety sensors or other devices are sometimes used to ensure a safe distance between the robot and theperson, and a speed limit is sometimes imposed on the robot. In either case, to meet requirem entsfor safety certification, movement of the robot is restricted when a person approaches the robot. Thisreduces operational availability and productivity of the system. Patent Document 1 discloses stopping themovement of the robot when it is determined that a position of the person is within a predetermined radius. Patent Document 2 discloses judging whether there is a possibility that the ro bot will come into contactwith a human in the future and, if there is such a po ssibility, modifying a trajectory of the robot.”
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NSTL