Research on the Application of Vehicle-Following Lighting Control System for Low-Traffic Highway Tunnels Based on Stepless Dimming

Under the policy background of carbon peaking and carbon neutrality, to address the issue of ineffective lighting in low-traffic and seasonal highway tunnels during long periods of no vehicle passage, a vehicle-following lighting control technology for highway tunnels under low traffic volume based on stepless dimming is proposed. This technology, built upon the existing stepless dimming system, divides the tunnel into several sections, each equipped with infrared vehicle detectors, zone controllers, and wireless subcontrol modules. By leveraging LORA Internet of Things and infrared detection technologies, it provides precise lighting following the vehicle's travel trajectory, achieving a vehicle-following lighting control system in low-traffic tunnels that operates on the principle of “lights on when vehicles approach, lights off when vehicles leave, and lights follow the vehicle”. This system can reduce lighting energy consumption and extend the lifespan of lighting fixtures, thereby achieving the dual goals of “safe and low-carbon” tunnel operation and “cost reduction and efficiency improvement”.