A Brief Review on Safety Strategies of Physical Human-robot Interaction

Nowadays, intelligent robotics are found in many places and always seem to be growing in complexity. The need to consider the human-robot interaction was further motivated by a growing number of collisions occurred among humans and robotics. The potential accidents need to be concerned and addressed urgently. This paper briefly reviewed some relevant researches on physical Human-robot Interactions, especially for the safety strategy issues. The suggestion to solve the physical Human-robot Interaction safety issues has been also proposed given to the review works

A constraint-based strategy for task-consistent safe human-robot interaction

Tight human-robot interaction and collaboration will characterize future robot tasks. Robot working environments will be increasingly unstructured, as safety barriers will be removed to allow a continuous cooperation of robotic and human workers. Such a working scenario calls for novel safety systems capable of combining productivity with workers’ safety. In this paper, a method for the definition of a task-consistent collision avoidance safety strategy is presented. A classification of task constraints based on relevance for task completion is introduced. Control of task constraints enforcement is performed through a state machine. A template for such state machine is proposed. Experimental validation of the proposed safety system on a dual-arm industrial robot prototype is presented