LAUSR

Abstract In order to achieve the goal of energy-saving and safety driving in tunnel, this paper proposes an energy-saving fuzzy control system for highway tunnel lighting. Firstly, a control system for highway tunnel lighting based on IoT technology is constructed. Then, by considering tunnel exterior environmental luminance, traffic volume and vehicle speed as inputs and tunnel interior luminance as output, a fuzzy control model is designed. Based on experts’ experience and “Guidelines for Design of Lighting of Highway Tunnels (China)” (JTG/T D70/2-01-2014), membership functions and fuzzy control rules of different zones are designed. Furthermore, this system has been deployed at the Duan tunnel of Guangxi Province in China and stably operated for more than half a year. The operation results demonstrate that the proposed control method can effectively avoid the “black hole effect” and “white hole effect”, and have a significant energy-saving effect (saving nearly 41% daily energy consumption).