Distributed light control using wireless sensor and actuator networks

Wireless sensor and actuator networks (WSANs) emerging from WSN conduce to many control applications like light control. This work focuses on meeting human preferences and energy cost. In this paper, a distributed light control system with WSANs considering daylight is constructed. Sensors measure illuminations while actuators make decisions and carry out appropriate actions. The feedback from sensors makes the system achieve a target illumination accuracy and thus human perceptions are improved. The control inputs are determined by local interaction between sensors and actuators. Thus, our method is distributed and hence the system can be easily extended to a large scale. Simulation results verify the effectiveness of our design.