Indoor navigation and audiovisual aiding within public transport

Abstract

In this paper, we present a specially designed indoor navigation and audiovisual aiding system for blind or visually impaired people within public transport. The developed system relies on a positioning algorithm, which is based on inertial and radio signal data. With an additional map-matching process, the position solution is restricted to a routing graph, which is designed on the basis of a tactile paving network. In addition, we developed an audiovisual operator help service. With this webRTC based technology, the help seeking user can make an audiovisual call to an acquaintance or professional operator.