Real-time safety for human - robot interaction

This paper presents a strategy for ensuring safety during human-robot interaction in real time. A measure of danger during the interaction is explicitly computed, based on factors affecting the impact force during a potential collision between the human and the robot This danger index is then used as an input to real-time trajectory generation when the index exceeds a predefined threshold. The danger index is formulated to produce stable motion in the presence of multiple surrounding obstacles. A motion strategy to minimize the danger index is developed for articulated multi degree of freedom robots. Simulations and experiments demonstrate the efficacy of this approach

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