http://www.phoenixcontact.com/transportation
Phoenix Contact’s lighting automation, control, and monitoring solution works to minimize dangerous driving conditions by measuring the intensity of the light conditions outdoors and then automatically adjusting the tunnel lights to a luminance level that matches outside conditions.
In addition to providing a one-stop-shop solution for Tunnel Lighting control systems - which include NFPA 502-compliant cables, connectors, PLC-based control, HMI hardware,
آی-ویدئو