Distributed illumination control of light-emitting diodes networked systems based on multi-agent consensus

Distributed illumination control is considered for a wireless networked lighting system with illuminance and dimming constraints based on the multi-agent consensus in this paper. The lighting system contains multiple luminaires, with co-located light-emitting diodes (LEDs) lamps, an occupancy sensor and a controller. The dimming information can be exchanged within a local neighborhood through a communication module. In this paper, our objective is to achieve energy saving and personalized lighting control. Specifically, the optimum dimming levels of LED sources need to be determined to minimize the electrical power consumption and meet the special illuminance requirements. Then, a distributed optimization problem is formulated with constraints on the bounded illuminance change and the control information exchange with a neighborhood. Subsequently, a distributed receding horizon algorithm is proposed to solve this problem and its convergence property is also guaranteed. Finally, a case study is provided to verify the effectiveness of the proposed approach.