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Autonomous Light Control by Wireless Sensor and Actuator Networks

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5 Author(s)
Lun-Wu Yeh ; Dept. of Comput. Sci., Nat. Chiao-Tung Univ., Hsin-Chu, Taiwan ; Che-Yen Lu ; Chi-Wai Kou ; Yu-Chee Tseng
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Recently, wireless sensor and actuator networks (WSANs) have been widely discussed in many applications. In this paper, we propose an autonomous light control system based on the feedback from light sensors carried by users. Our design focuses on meeting users' preferences and energy efficiency. Both whole and local lighting devices are considered. Users' preferences may depend on their activities and profiles and two requirement models are considered: binary satisfaction and continuous satisfaction models. For controlling whole lighting devices, two decision algorithms are proposed. For controlling local lighting devices, a surface-tracking scheme is proposed. Our solutions are autonomous because, as opposed to existing solutions, they can dynamically adapt to environment changes and do not need to track users' current locations. Simulations and prototyping results are presented to verify the effectiveness of our designs.

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Sensors Journal, IEEE  (Volume:10 ,  Issue: 6 )