Embedded Wireless System for Pedestrian Localization in Indoor Environments

Nicolas Fourty (1) , Yoann Charlon (2) , Eric Campo (2)

1 LCIS - Laboratoire de Conception et d'Intégration des Systèmes
2 LAAS-N2IS - Équipe Nano Ingénierie et Intégration des Systèmes

The paper presents an embedded telemetry system used in combination of localization algorithm for a precise indoor pedestrian localization. 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 of energy consumption and packet error rate was conducted.

Mots clés: Wireless sensors; Telemetry; Low power; Ultrasonic; Localization; 802.15.4

Domaines: Réseaux et télécommunications [cs.NI]

Nicolas Fourty, Yoann Charlon, Eric Campo. Embedded Wireless System for Pedestrian Localization in Indoor Environments. Sensors & Transducers., 2012, 14-2, pp.211-227. ⟨hal-00815272⟩