Safety Strategy for Human–Robot Collaboration: Design and Development in Cellular Manufacturing

Our research aims to design and develop a safety strategy for a human–robot collaboration system. Although robotic assistance in a cellular manufacturing system is promising, safety is the uppermost consideration before it can be materialized. Five main safety designs are developed in this work. (i) Safe working areas for humans and robots. (ii) To control the behavior of the robot based on the collaboration requirements, light curtains defined safe collaborative working zones. (iii) Additionally, the robot system was developed using safe mechanical design and Dual Check Safety control strategies in terms of robot speed and travel area to minimize collaboration risks. (iv) A vision system using IP cameras was developed to monitor operator safety conditions by measuring the body posture and position of the operator. (v) The operation control system coordinated the collaborative flow between the operator and robot system. Apart from these developments, risk assessments were conducted to evaluate the safety ...

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