| 摘要 |
The present invention relates to an airfield lighting system comprising a constant current regulator configured to output a constant current, a plurality of insulating transformers configured to be electrically connected to the constant current regulator to supply an electric power, and a plurality of individual lighting devices each electrically connected to the insulating transformer to turn on or off an LED lamp, wherein the individual lighting device includes an LED unit including an AC-DC converter (ADC) and at least one LED lamp connected to a secondary side of the ADC and transmitting defect information of the LED lamp, and a defect information receiver configured to measure current and voltage at a primary side of the ADC, measure electricity or a resistance value using the measured current and voltage, and generate status information of the LED lamp. [Reference numerals] (123) Control unit; (125) Powerless lamp opening detection unit; (126,135) Wireless communication unit; (132) Current interface; (133) LED current control unit; (AA) AC; (BB) Communication data; (CC) Control data; (DD) Opening detecting signal |
