A design of the multi-portal human interface considering user´s line of sight and controlling stability

In this study, we propose a multi-portal human interface (M-HI) as an innovative human interface for power assist systems. The M-HI allows users to apply the operational force anywhere in the power assist system. Because of that, the workspace of the power assist system is extended with their end-effecter can be controlled as user think. We design the M-HI considering the user´s line of sight. Because we researched the relation between user´s operational force and user´ s line of sight in terms of human vision. In this paper, We show that the M-HI considering user´s line of sight enables PAS to control more stable.