Energy-saving approaches to solid state street lighting

Pranciškus Vitta; Rytis Stanikūnas; Arūnas Tuzikas; Ignas Reklaitis; Andrius Stonkus; Andrius Petrulis; Henrikas Vaitkevičius; Artūras Žukauskas

doi:10.1117/12.893250

24 September 2011 Energy-saving approaches to solid state street lighting

Pranciškus Vitta, Rytis Stanikūnas, Arūnas Tuzikas, Ignas Reklaitis, Andrius Stonkus, Andrius Petrulis, Henrikas Vaitkevičius, Artūras Žukauskas

Author Affiliations +

Proceedings Volume 8123, Eleventh International Conference on Solid State Lighting; 81231H (2011) https://doi.org/10.1117/12.893250
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

We consider the energy-saving potential of solid-state street lighting due to improved visual performance, weather sensitive luminance control and tracking of pedestrians and vehicles. A psychophysical experiment on the measurement of reaction time with a decision making task was performed under mesopic levels of illumination provided by a highpressure sodium (HPS) lamp and different solid-state light sources, such as daylight and warm-white phosphor converted light-emitting diodes (LEDs) and red-green-blue LED clusters. The results of the experiment imply that photopic luminances of road surface provided by solid-state light sources with an optimized spectral power distribution might be up to twice as low as those provided by the HPS lamp. Dynamical correction of road luminance against road surface conditions typical of Lithuanian climate was estimated to save about 20% of energy in comparison with constant-level illumination. The estimated energy savings due to the tracking of pedestrians and vehicles amount at least 25% with the cumulative effect of intelligent control of at least 40%. A solid-state street lighting system with intelligent control was demonstrated using a 300 m long test ground consisting of 10 solid-state street luminaires, a meteorological station and microwave motion sensor network operated via power line communication.

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Pranciškus Vitta, Rytis Stanikūnas, Arūnas Tuzikas, Ignas Reklaitis, Andrius Stonkus, Andrius Petrulis, Henrikas Vaitkevičius, and Artūras Žukauskas "Energy-saving approaches to solid state street lighting", Proc. SPIE 8123, Eleventh International Conference on Solid State Lighting, 81231H (24 September 2011); https://doi.org/10.1117/12.893250

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