Date Added: Jan 2010
Recently, Wireless Sensor and Actuator Networks (WSANs) have been widely discussed in many applications. In this paper, the authors propose an autonomous light control system based on the feedback from light sensors carried by users. Their 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.