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Proceedings Paper

Analysis and simulation of an automated LED lighting system for pedestrian crosswalk
Author(s): Ioan Ileana; Mircea Risteiu; Gheorghe Marc; Ionut Sofalca
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Paper Abstract

This paper approaches the design of a smart lighting system for efficient lighting of pedestrian crosswalks on streets, using power LEDs. Starting with existing solid-state lighting - SSL (power LEDs with individual directivity diagram, lighting efficiency and color rendering index - CRI) in the paper we propose a design technique and methodology in order to find the distribution geometry of light sources (sources number, spatial coordinates, fixing angles) that simultaneously satisfy the lighting regulation requests and energetic efficiency. The major achievements are the simulations of using of a great number of LED lighting sources and of spatial lighting configurations in order to obtain of a uniform lighting of the area of interest (fig.1) and in conformity with actual standards in a specified scenario. The direct consequence of these simulations is the using of an intelligent management system of LED lighting sources that will allow the optimization of light flux in real traffic conditions of cars and pedestrians. This means the monitoring of traffic level and surrounding conditions (temperature, humidity, natural lighting etc.) in order to efficient use the existing resources.

Paper Details

Date Published: 20 February 2015
PDF: 6 pages
Proc. SPIE 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII, 925820 (20 February 2015); doi: 10.1117/12.2071208
Show Author Affiliations
Ioan Ileana, 1 Decembrie 1918 Univ. of Alba Iulia (Romania)
Mircea Risteiu, 1 Decembrie 1918 Univ. of Alba Iulia (Romania)
Gheorghe Marc, 1 Decembrie 1918 Univ. of Alba Iulia (Romania)
Ionut Sofalca, 1 Decembrie 1918 Univ. of Alba Iulia (Romania)


Published in SPIE Proceedings Vol. 9258:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII
Ionica Cristea; Marian Vladescu; Razvan Tamas, Editor(s)

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