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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: A telemetry system embedded in clothes for indoor localization and elderly health monitoring.
    Author: Charlon Y, Fourty N, Campo E.
    Journal: Sensors (Basel); 2013 Sep 04; 13(9):11728-49. PubMed ID: 24008286.
    Abstract:
    This paper presents a telemetry system used in a combined trilateration method for the precise indoor localization of the elderly who need health monitoring. The system is based on the association of two wireless technologies: ultrasonic and 802.15.4. The use of the 802.15.4 RF signal gives the reference starting time of the ultrasonic emission (time difference of arrival method). A time of flight measurement of the ultrasonic pulses provides the distances between the mobile node and three anchor points. These distance measurements are then used to locate the mobile node using the trilateration method with an accuracy of a few centimetres. The originality of our work lies in embedding the mobile node in clothes. The system is embedded in clothes in two ways: on a shoe in order to form a "smart" shoe and in a hat in order to form a "smart" hat. Both accessories allow movements, gait speed and distance covered to be monitored for health applications. Experiments in a test room are presented to show the effectiveness of our system.
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