Electronic Locomotion Aids for the Blind: Towards More Assistive Systems

This chapter first presents a review of existing locomotion assistance devices for the blind. These devices are merely proximeters, that measure the distance to the closest obstacles, and convey this information to their users. We introduce the measurement methods (infrared sensors, ultrasonic sensors, laser telemeters) and the user interfaces (sounds and tactile vibrations). Then, we analyse the shortcomings of these systems, and thus explain what additional features new devices could offer. To study the feasibility of such systems, we tackle the different issues raised in the process: localizing users, modeling their environment and adding semantic annotations. Finally, we explain how such devices could fit into a view of ambient intelligence, and how the problems raised extend beyond the field of assistance to blind people.

[1]  Joëlle Coutaz,et al.  Foundations for a Theory of Contextors , 2002, CADUI.

[2]  James L. Crowley,et al.  Localisation intra-bâtiment multi-technologies: RFID, wifi et vision , 2005, UbiMob '05.

[3]  Yunhao Liu,et al.  LANDMARC: Indoor Location Sensing Using Active RFID , 2004, Proceedings of the First IEEE International Conference on Pervasive Computing and Communications, 2003. (PerCom 2003)..

[4]  Bill N. Schilit,et al.  Context-aware computing applications , 1994, Workshop on Mobile Computing Systems and Applications.

[5]  Kay Römer,et al.  Smart identification frameworks for ubiquitous computing applications , 2003, Proceedings of the First IEEE International Conference on Pervasive Computing and Communications, 2003. (PerCom 2003)..

[6]  Andrea Fusiello,et al.  Synthesis of indoor maps in presence of uncertainty , 1997, Robotics Auton. Syst..

[7]  Bill N. Schilit,et al.  The PARCTAB mobile computing system , 1993, Proceedings of IEEE 4th Workshop on Workstation Operating Systems. WWOS-III.

[8]  Y. Bellik,et al.  Locomotion Assistance for the Blind , 2002 .

[9]  Wolfram Burgard,et al.  Mapping and localization with RFID technology , 2004, IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004.

[10]  Yin Jianghui.  Method of Map Matching for Personal Positioning System , 2005 .

[11]  M. Harrison,et al.  Reasoning about Uncertainty in Location Identification with RFID , 2003 .

[12]  Olivier Venard,et al.  Le projet RAMPE: système interactif d'information auditive pour la mobilité des personnes aveugles dans les transports publics , 2005, UbiMob '05.

[13]  Gregory D. Abowd,et al.  Rapid prototyping of mobile context-aware applications: the Cyberguide case study , 1996, MobiCom '96.

[14]  Eric Horvitz,et al.  RightSPOT: A Novel Sense of Location for a Smart Personal Object , 2003, UbiComp.

[15]  René Farcy,et al.  Comparison of Various Interface Modalities for a Locomotion Assistance Device , 2002, ICCHP.

[16]  Nectaria Tryfona,et al.  An extended entity-relationship model for geographic applications , 1997, SGMD.

[17]  Anind K. Dey,et al.  UbiComp 2003 : ubiquitous computing : 5th International Conference, Seattle, WA, USA, October 12-15, 2003 : proceedings , 2003 .

[18]  Gregory D. Abowd,et al.  A Conceptual Framework and a Toolkit for Supporting the Rapid Prototyping of Context-Aware Applications , 2001, Hum. Comput. Interact..

[19]  R Farcy,et al.  Triangulating laser profilometer as a navigational aid for the blind: optical aspects. , 1996, Applied optics.

[20]  P. Rouzet,et al.  Principle and Motivations of UWB Technology for High Data Rate WPAN Applications , 2002 .

[21]  K. Ducatel,et al.  Scenarios for Ambient Intelligence in 2010 Final Report , 2001 .

[22]  Christian Floerkemeier,et al.  Issues with RFID Usage in Ubiquitous Computing Applications , 2004, Pervasive.

[23]  Deborah L. McGuinness,et al.  OWL Web ontology language overview , 2004 .

[24]  Gaetano Borriello,et al.  Location Systems for Ubiquitous Computing , 2001, Computer.

[25]  Bill N. Schilit,et al.  Place Lab: Device Positioning Using Radio Beacons in the Wild , 2005, Pervasive.

[26]  Nel Samama,et al.  La localisation en intérieur à l'aide de répéteurs GPS vers un système de positionnement universel? , 2005, UbiMob '05.

[27]  Ryosuke Shibasaki.  A Method of Map Matching for Personal Positioning System , 2001 .

[28]  James Brusey,et al.  Reasoning about uncertainty in location identification with auto-ID , 2003 .

[29]  John F. Sowa,et al.  Conceptual Graphs for a Data Base Interface , 1976, IBM J. Res. Dev..