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OBJECTIVE Extensive efforts have been made in both academia and industry in the research and development of smart wearable systems (SWS) for health monitoring (HM). Primarily influenced by skyrocketing healthcare costs and supported by recent technological advances in micro- and nanotechnologies, miniaturisation of sensors, and smart fabrics, the continuous(More)
In the era of information technology, the elderly and disabled can be monitored with numerous intelligent devices. Sensors can be implanted into their home for continuous mobility assistance and non-obtrusive disease prevention. Modern sensor-embedded houses, or smart houses, cannot only assist people with reduced physical functions but help resolve the(More)
Today's industrial sensor networks require strong reliability and guarantees on messages delivery. These needs are even more important in real time applications like control/command, such as robotic wireless communications where strong temporal constraints are critical. For these reasons, classical random-based Medium Access Control (MAC) protocols present(More)
A multisensor home monitoring system has been developed within a telecare project to help elderly people by observing mobility changes indicative of abnormal events. This paper assesses the motor activity and the relationships between activity measures using the system. The motor activity data (in bed, getting up, getting out, visiting the toilets) are(More)
A single elderly, dependent subject was monitored for a period of three months. Data were collected from 12 sensors in his apartment. We investigated new criteria for diagnosing abnormal events with more reliability. Initial results suggested that six diagnostic functions could be achieved using only presence sensors. These were: immobility detection; the(More)
This paper presents the TIISSAD project and its main results. It is related to a telemedicine system type, remote monitoring or follow-up systems. Patients with chronic diseases or elderly (or handicapped) people are the main target for such systems and we aim at preventing accidents or aggravation of the health status of the concerned patients. After an(More)
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(More)