|AKJI has since 2008, together with the company Out-Sider A/S developed an intelligent electronic controller for LED lamps based on PV cells. During the project DTU has participated, by taking part of a EUDP project called "PV LED Engine".
The development project has now gone so far that
The controller can control a LED light source of up to 50 W. The light level is adjusted dependtly of the date, time and the available energy stored on the battery. Thereby the controller can make sure that there are always light when it is needed, no matter how much sunlight there have been. The light level will simply be a little lower if there havent been much sunny days. The amount of energy that is harvested from the PV cells and stored on the battery is constantly monitored. So that the controller in the best possible way can forecast how much energy there are required in the coming week to be in balance.
The controller also has a number of more advanged features such as PIR movement sensors, datalogger, and remote control and data extraction via the GSM network.
if you are interested in applying the controller in a project, or want to develop another similar product, pleace feel free to contact Allan Krogh Jensen, and get a quote.
|Jello bike rack with embedded LED light, PV cells and intelligent control electronics, installed in Oerestaden, Copenhagen, Denmark (Photo: Out-Sider A/S)|