Development and experimental validation of a minimalistic shape-changing haptic navigation device

摘要: This paper presents a minimalistic handheld haptic interface designed to provide pedestrian navigation assistance via the intuitive and unobtrusive stimulus of shape-changing. The new device, named Haptic Taco, explores novel region robotic interfaces which we believe have benefits over other communication methods. In previous work, demonstrated use 2DOF shape changing for without sight. this seek explore potential minimal 1DOF interfaces, whose simplicity may increase intuitiveness performance despite conveying less information. Taco utilizes same ‘variable volume’ concept as Lotus (2010), but with reduced body compliance higher force exertion capability. Both devices modulate their perceived volume in relation proximity navigational target (a destination or waypoint). As users walk within an environment, they also attempt minimize device volume, finding targets embodied ‘steepest descent’ method. Experimental comparison target-finding study revealed that increased motion path efficiency by 24% Lotus, 47% average efficiency. result is highly comparable mean 43.6–48% observed prior experiments shape-changing interface, Animotus. findings indicate emerging field.