Universal real-time navigational assistance (URNA)

S. Bohonos, A. Lee, A. Malik, C. Thai, R. Manduchi
2007 Proceedings of the 1st ACM SIGMOBILE international workshop on Systems and networking support for healthcare and assisted living environments - HealthNet '07  
We describe a complete hardware/software system, dubbed Universal Real-Time Navigational Assistance (URNA), which enables communication of relevant location-aware information to a blind person carrying a Bluetooth-enabled cell phone. Although URNA can be used for a number of different applications (e.g., an information kiosk at a shopping mall or public transit information at a bus stop), we concentrate on the challenging case of an urban intersection. Information provided to the user as he or
more » ... he approaches the intersection includes a description of the intersection topology and real-time notification of the state of the traffic lights. The main FPGAbased control board (NavCon) interfaces with a traffic controller and with the Bluetooth modules, which are each mounted atop the intersection's pedestrian heads (pedheads)the lights signaling a pedestrian when to 'WALK' or 'DON'T WALK'. The cell phone software (PedNav), written in Java 2 Micro Edition (J2ME), uses Text-To-Speech (TTS) for presenting the information transmitted by NavCon to the blind user.
doi:10.1145/1248054.1248080 dblp:conf/mobisys/BohonosLMTM07 fatcat:nytiq6lrczg3xa3xqzhcz6txqm