Collision risk reduction system for assembly task partner robot

We have been developing a novel human-friendly/cooperative work support robot. This system named PaDY (in-time Parts/tools Delivery to You robot) supports worker by delivering parts and tools to worker based on statistical analysis of the worker´s work in an automobile assembly line to reduce the worker´s physical workload and improve work efficiency. So far, it has been shown to improve work efficiency by introducing this robot system. However, the robot to work together in the same workspace with humans have a risk of collision with the workers. Therefore, discussion of safety can not be avoided. In this paper, the collision risk reduction system is proposed.