Initial Development of a PDA Mobility Aid for Visually Impaired People

  • David McGookin
  • Maya Gibbs
  • Annu-Maaria Nivala
  • Stephen Brewster
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4663)


We discuss requirements surrounding a mobile navigation system for visually impaired people. We describe an initial prototype based on a PDA using GPS location tracking. This prototype has so far failed to provide reliable location detection, due to the use of GPS in built up environments. We discuss how our system may improve detection by switching between a range of different location tracking technologies. However, we conclude that there may still be times when these technologies fail, and more work is needed on how to support the user in such circumstances.


Global Position System Global Position System Receiver Global Position System Satellite Location Tracking Impaired People 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© IFIP International Federation for Information Processing 2007

Authors and Affiliations

  • David McGookin
    • 1
  • Maya Gibbs
    • 1
  • Annu-Maaria Nivala
    • 2
  • Stephen Brewster
    • 1
  1. 1.Department of Computing Science, University of Glasgow, Glasgow G12 8QQUK
  2. 2.Finnish Geodetic Institute, Geodeetinrinne 2, P.O. Box 15Finland

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