Abstract
Wireless sensor and actuator network (WSAN) is a new generation of wireless sensor network (WSN) and has been widely used in various applications. WSANs are not only able to monitor physical environment, but also to change the environment by appropriate action. This paper presents a typical WSAN application: a collaborative control system for intelligent lighting based on an illuminance distribution model. The system focuses on meeting human illuminance and human uniformity requirements simultaneously as far as possible. To reach the goal, a collaborative control method including collaborative sensing and collaborative actuation is used. In the process of calculating the control signals, a simple yet efficient gradient descent algorithm is applied. Simulation is implemented to verify the effectiveness of our design.
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