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Author Elejoste, P.; Angulo, I.; Perallos, A.; Chertudi, A.; Zuazola, I.J.G.; Moreno, A.; Azpilicueta, L.; Astrain, J.J.; Falcone, F.; Villadangos, J.
Title An easy to deploy street light control system based on wireless communication and LED technology Type Journal Article
Year 2013 Publication Sensors (Basel, Switzerland) Abbreviated Journal Sensors (Basel)
Volume 13 Issue 5 Pages 6492-6523
Keywords Lighting
Abstract This paper presents an intelligent streetlight management system based on LED lamps, designed to facilitate its deployment in existing facilities. The proposed approach, which is based on wireless communication technologies, will minimize the cost of investment of traditional wired systems, which always need civil engineering for burying of cable underground and consequently are more expensive than if the connection of the different nodes is made over the air. The deployed solution will be aware of their surrounding's environmental conditions, a fact that will be approached for the system intelligence in order to learn, and later, apply dynamic rules. The knowledge of real time illumination needs, in terms of instant use of the street in which it is installed, will also feed our system, with the objective of providing tangible solutions to reduce energy consumption according to the contextual needs, an exact calculation of energy consumption and reliable mechanisms for preventive maintenance of facilities.
Address Deusto Institute of Technology (DeustoTech), University of Deusto, Bilbao 48007, Spain. perallos@deusto.es
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1424-8220 ISBN Medium
Area Expedition Conference
Notes PMID:23681092; PMCID:PMC3690067 Approved no
Call Number (down) LoNNe @ kagoburian @ Serial 631
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Author Ge, A.; Du, Z.; Wang, W.; Qiu, P.; Wang, J.; Cai, J.; Song, X.
Title A composite optical system for a LED based headlamp low beam module Type Journal Article
Year 2013 Publication Lighting Research and Technology Abbreviated Journal Lighting Research and Technology
Volume 45 Issue 6 Pages 752-757
Keywords Lighting
Abstract In this paper, we propose a composite optical system for automotive headlamps. The system is composed of a paraboloid collimating reflector, an off-axis paraboloid reflector, a baffle and an imaging len. By using a LED as the light source, precise light distribution can be achieved. When making ray-tracing simulation for the composite optical system in TracePro, a clear cut-off line can be seen on the measuring screen, as well as a hotspot at the centre. The power consumption for the LED light sources in this system is less than 10 W, resulting in an energy efficiency of more than 58% and a maximum illumination of 26.76 lux at the centre hotspot.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1477-1535 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) LoNNe @ kagoburian @ Serial 632
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Author Jackett, M.; Frith, W.
Title Quantifying the impact of road lighting on road safety -- A New Zealand Study Type Journal Article
Year 2013 Publication IATSS Research Abbreviated Journal IATSS Research
Volume 36 Issue 2 Pages 139-145
Keywords Lighting; roadway lighting; road safety; traffic safety; public safety
Abstract It is well known from the literature that road lighting has significant safety benefits. The NZTA Economic Evaluation Manual (EEM) quotes a 35% reduction in crashes as the effect of upgrading or improving lighting where lighting is poor.

However, no well-established dose–response relationship to lighting parameters exists from which one can deduce benchmark levels of lighting for safety.

This study looked at a sample of street lighting installations spread over the urban areas of nine territorial local authorities. Standard street lighting parameters were measured in the field using a variety of instruments including illuminance meter, luminance meter and digital camera. Field measurements were related to the ratio of night-time to day time crashes as a measure of night time safety vis-a-vis daytime safety.

A statistically significant dose–response relationship was found between average road luminance and safety across all traffic volume groups, with an indication that the relationship may be stronger where more serious crashes are involved.

Threshold increment was also a significant variable but not so longitudinal uniformity or overall uniformity.

The results related to luminance will allow practitioners to better estimate the safety benefits of different levels of lighting resulting in better targeting of expenditure.
Address Jackett Consulting, Lower Hutt, New Zealand; jackett(at)paradise.net.nz
Corporate Author Thesis
Publisher Elsevier Place of Publication Editor
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0386-1112 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) LoNNe @ kagoburian @ Serial 638
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Author Juntunen, E.; Tetri, E.; Tapaninen, O.; Yrjänä S.; Kondratyev, V; . Sitomaniemi, A.; Siirtola, H.; Sarjanoja, E.M.; Aikio, J.; Heikkinen, V
Title A smart LED luminaire for energy savings in pedestrian road lighting. Type Journal Article
Year 2013 Publication Lighting Research and Technology Abbreviated Journal
Volume 47 Issue 1 Pages 103-115
Keywords Lighting
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) LoNNe @ kagoburian @ Serial 639
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Author E. Olvera-Gonzalez; D. Alaniz-Lumbreras; V. Torres-Argüelles; E. González-Ramírez; J. Villa-Hernández; M. Araiza-Esquivel; R. Ivanov-Tsonchev; C. Olvera-Olvera; V.M. Castaño
Title A LED-based smart illumination system for studying plant growth Type Journal Article
Year 2013 Publication Lighting Research and Technology Abbreviated Journal
Volume Issue Pages 1-12
Keywords Lighting
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number (down) LoNNe @ kagoburian @ Serial 644
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