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Energy Efficient Embedded Wireless System Used For Localisation In Indoor Environments

Authors:
Nicolas Fourty
Yoann Charlon
Eric Campo

Keywords: wireless sensors; telemetry; low power; ultrasonic; localization; 802.15.4; indoor environment.

Abstract:
The paper presents an embedded telemetry system used in combination of localisation algorithm for a precise indoor pedestrian localisation. The system is based on the association of two wireless technologies: ultrasonic and 802.15.4. The novelty is the use of 802.15.4 RF signal to give the reference starting time of the ultrasonic emission. A ToA (Time of Arrival) measurement provides the distance between two mobiles or a mobile and a fixed beacon with a few centimeters accuracy. A material prototype implementing this method was performed and a first evaluation was conducted.

Pages: 44 to 49

Copyright: Copyright (c) IARIA, 2011

Publication date: August 21, 2011

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-145-8

Location: Nice/Saint Laurent du Var, France

Dates: from August 21, 2011 to August 27, 2011