DALMA – Location Aware Alarm System for People with Disabilities

  • Roberto Casas
  • Álvaro Marco
  • Jorge L. Falcó
  • Héctor Gracia
  • José I. Artigas
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4061)


This paper presents a location aware alarm system developed to give each person greater and safer mobility by automatically detecting risk situations. Location awareness has been possible thanks to an indoors positioning system (IPS) based on Bluetooth and ultrasounds, developed by the authors. The IPS is able to give accuracies of several centimetres, using a reduced infrastructure (6 fixed beacons every 100 m2). The alarm system has been implemented in several stances of a special education school. Preliminary evaluation results show its reliability and usability.


Central Processor Assistive Technology Alarm System Smart Sensor Indoor Position 
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

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Roberto Casas
    • 1
  • Álvaro Marco
    • 1
  • Jorge L. Falcó
    • 1
  • Héctor Gracia
    • 1
  • José I. Artigas
    • 1
  1. 1.TecnoDiscap GroupUniversity of ZaragozaZaragozaSpain

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