Embedded Wireless System for Pedestrian Localization in Indoor Environments
نویسندگان
چکیده
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. Copyright © 2012 IFSA.
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