Sensor Placement for 3-Coverage with Minimum Separation Requirements
DCOSS '08 Proceedings of the 4th IEEE international conference on Distributed Computing in Sensor Systems
SAL: a simulation and analysis tool for assistive living applications
Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments
Optimal 3-Coverage with Minimum Separation Requirements for Ubiquitous Computing Environments
Mobile Networks and Applications
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As the elderly population increases, the elderly care using inexpensive technological means becomes critical. This paper presents our prototype system that provides real-time indoor tracking of elderly residents and their belongings, which is essential to assist and secure their independent living. For high-fidelity real-time tracking, we propose novel scheduling algorithms. Our scheduling algorithms are designed by harmonizing both sensing and communication signals and leveraging location-awareness and mobility-consciousness, in order to improve the tracking accuracy while reducing the energy consumption. We performed extensive experiments through both simulation and actual implementation. Our experimental result says that our scheduling algorithms can provide real-time tracking of residents within 20 cm error bound in the typical range of human mobility.