TactiBelt: Integrating Spatial Cognition and Mobility Theories into the Design of a Novel Orientation and Mobility Assistive Device for the Blind

The aim of this paper is to introduce a novel functional design for an indoor and outdoor mobility assistive device for the visually impaired, based on the theoretical frameworks of mobility and spatial cognition. The originality of the proposed approach comes from the integration of two main aspects of navigation, locomotion and wayfinding. The cognitive theories which underpin the design of the proposed sensory substitution device, called TactiBelt, are identified and discussed in the framework of spatial knowledge acquisition.