Aids to navigation provided with necessary equipment，automatically control the turning on and off the lights，change the electric bulbs, and in cases of power failure，switch on to a reserve power source （electric generator or batteries）．　At lighthouses with diesel generators（electric generator), the starting and stopping the engine，switching to a reserve power source，turning on and off the lights are operated automatically． The operating condition of facilities at the lighthouses are supervised by the aids to navigation offices by the radio and the NTT circuits between the lighthouse and the office．

In the case of lighted buoys，a light failure alarm system of wireless radio is attached so that light failures are immediately notified to the office．
In case of fogs and snow，an equipment to recognize the situation is attached，and fog signals are blown automatically．