A Study on Illumination Analysis of an Intelligent LED Lighting Fixture Applied to Underground Common Duct and Visibility Measurement by a Low-light Camera

This paper analyzed adaptability optical performance of an intelligent LED lighting fixture capable of variable CCTs (3,000K, 5,000K) replacing a fluorescent lighting fixture applied in a underground common duct. In addition, visibility of a camera was tested under a low light condition to save energy. As a result of simulation using the IES File of the LED fixture generated by light distribution measurement, the average illuminance of the LED fixture was improved by about 2 times compared to that of the existing fluorescent lighting fixture. In addition, the installation distance between the LED fixtures was increased from the current 5m up to 10m to save more energy. The visibility of the camera image was confirmed by two methods of adjusting the distance under the same low illumination condition and the illumination adjustment method.