Featured Research

from universities, journals, and other organizations

Intelligent street lights adapt to conditions in Finland

Date:
May 27, 2013
Source:
Technical Research Centre of Finland (VTT)
Summary:
Researchers in Finland have developed a dimmable LED street light that consumes significantly less energy than current lighting systems, while improving the lighting characteristics. The street lights were tested in Helsinki with user experiences collected.

VTT Technical Research Centre of Finland has developed a dimmable LED street light that consumes significantly less energy than current lighting systems, while improving the lighting characteristics. The street lights were tested in Helsinki with user experiences collected.

Traditional street lights work on full power when turned on, and the amount of light is not usually adjusted. The new LED street lights developed by VTT adapt to the ambient conditions with the help of sensors and wireless control, allowing them to be dimmed on the basis of natural light, environmental conditions (for example light reflected from snow) and the number of pedestrians. In order to maintain comfort, several characteristics important to road users, such as the amount and colour of light and the shape of the light beam, are considered in the luminaire design. Particular attention was paid to glare control, light distribution and sufficient lighting of road shoulders.

The intelligent street lighting system stores information on energy consumption, temperature, lighting level, and number of pedestrians, among others. According to laboratory measurements, the new LED street light is 50 per cent more energy-efficient than traditional lights on the market -- without the intelligence factored in. With lighting levels adjusted according to the number of users or to natural lighting conditions, an additional energy saving potential of 40 per cent with added intelligence has been observed. The developed lighting method is based on available components (for example, LEDs and sensors).

The street lights were tested along a pedestrian road in Helsinki, where initially a total of 20 reference street lights were installed. These represented five different luminaires on the market, three of which were LED luminaires and two others a traditional high pressure sodium and a metal halide lamp luminaire. Aalto University carried out a user survey in the pilot installation area, based on which VTT designed the new LED street light. Demo lights were installed at the end of 2012 as an extension of the first test installation, after which Aalto University carried out another survey on the experiences of the people using the road. The demo street light received the best feedback in the survey.

The AthLEDics project, funded by Tekes -- the Finnish Funding Agency for Technology and Innovation, research institutes and companies, is implemented by VTT and Aalto University, partnered by Alppilux, Helsingin Energia, the City of Helsinki, the City of Jyväskylä, Enerpoint, Ensto Finland, Hella Lighting Finland, Helvar, Herrmans, LumiChip, MTG-Meltron, Oplatek, Sabik, Senate Properties, Valopaa and YIT.


Story Source:

The above story is based on materials provided by Technical Research Centre of Finland (VTT). Note: Materials may be edited for content and length.


Cite This Page:

Technical Research Centre of Finland (VTT). "Intelligent street lights adapt to conditions in Finland." ScienceDaily. ScienceDaily, 27 May 2013. <www.sciencedaily.com/releases/2013/05/130527100441.htm>.
Technical Research Centre of Finland (VTT). (2013, May 27). Intelligent street lights adapt to conditions in Finland. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2013/05/130527100441.htm
Technical Research Centre of Finland (VTT). "Intelligent street lights adapt to conditions in Finland." ScienceDaily. www.sciencedaily.com/releases/2013/05/130527100441.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) — Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) — 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com
Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) — Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Car Market on the Rebound?

Europe's Car Market on the Rebound?

Reuters - Business Video Online (July 23, 2014) — Daimler kicks off a round of second-quarter earnings results from Europe's top carmakers with a healthy set of numbers - prompting hopes that stronger sales in Europe will counter weakness in emerging markets. Hayley Platt reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins