Item Details

ALARM-NET: Wireless Sensor Networks for Assisted-Living and Residential Monitoring

Wood, A; Virone, G; Doan, T; Cao, Q; Selavo, Leo; Wu, Y; Fang, L; He, Z; Lin, S; Stankovic, Jack
Wood, A
Virone, G
Doan, T
Cao, Q
Selavo, Leo
Wu, Y
Fang, L
He, Z
Lin, S
Stankovic, Jack
We describe ALARM-NET, a wireless sensor network for assisted-living and residential monitoring. It integrates envi- ronmental and physiological sensors in a scalable, heteroge- neous architecture. A query protocol allows real-time col- lection and processing of sensor data by user interfaces and back-end analysis programs. One such program determines circadian activity rhythms of residents, feeding activity in- formation back into the sensor network to aid context-aware power management, dynamic privacy policies, and data as- sociation. Communication is secured end-to-end to protect sensitive medical and operational information. The ALARM-NET system has been implemented as a network of MICAz sensors, stargate gateways, iPAQ PDAs, and PCs. Customized infrared motion and dust sensors, and integrated temperature, light, pulse, and blood oxygenation sensors are present. Software components include: TinyOS query processor and security modules for motes; AlarmGate, an embedded Java application for managing power, privacy, security, queries, and client connections; Java resident mon- itoring and sensor data querying applications for PDAs and PCs; and a circadian activity rhythm analysis program. We show the correctness, robustness, and extensibility of the system architecture through a scenario-based evaluation of the integrated ALARM-NET system, as well as perfor- mance data for individual software components.
Date Received
University of Virginia, Department of Computer Science, 2006
Published Date
Libra Open Repository
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