Physical Sciences and Mathematics Commons^™

Indoor Inertial Waypoint Navigation For The Blind, Timothy H. Riehle, Shane M. Anderson, Patrick A. Lichter, William E. Whalen, Nicholas A. Giudice

Spatial Information Science and Engineering Faculty Scholarship

Indoor navigation technology is needed to support seamless mobility for the visually impaired. This paper describes the construction and evaluation of an inertial dead reckoning navigation system that provides real-time auditory guidance along mapped routes. Inertial dead reckoning is a navigation technique coupling step counting together with heading estimation to compute changes in position at each step. The research described here outlines the development and evaluation of a novel navigation system that utilizes information from the mapped route to limit the problematic error accumulation inherent in traditional dead reckoning approaches. The prototype system consists of a wireless inertial sensor unit, …