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Lumenpulse’s Lumentalk turns existing electrical wiring into a stable, noise-free high-speed communications link for data, enabling LED fixtures to be reliably controlled without additional wiring. The technology is protocol independent, making it compatible with common dimmer and control standards: Triac, 0-10V, DALI, DMX, ELV.
The Lumentalk system would be of particu- lar use in applications where low dimming levels are needed and when used with colour changing or dynamic white lumi- naires that require DMX control. Lumentalk can handle DMX although apparently there is quite a slow data transfer rate so any ef- fects requiring rapid scene changes or video would be problematic. One of the novel features of Lumentalk is its ability to read and translate dimming levels from a wide range of standard dim- mer types including Triac, 0-10V, DALI, DMX and ELV. The Lumentranslator system con- verts them to a standard format and sends them over the system to be decoded at the luminaire end. In addition to sending signals to the lu- minaires over the mains, the system also allows data to be collected at the luminaire
end via motion, light level or other sensors and transmitted back down the mains to the building automation system where it can be used in daylight harvesting or for security purposes thus reducing overall building cabling costs and effecting increased energy savings. In large buildings with multiple electrical circuits and phases an additional element – Lumenlink - is required. Control panels on one phase or circuit can then control lu- minaires in other parts of the building that may not be on the same phase or circuit. This allows Lumentalk to be scalable for any building size to create a seamless system. Although so far I have only seen Lumentalk working in an exhibition setting, it seems to offer a good solution for certain specific projects where rewiring costs could be an obstacle to changing to LED lighting. The
system would also seem to have wider ap- plications for non LED luminaire projects where DALI or 0 – 10 V dimming is required but rewiring costs to provide the data lines would be an issue. It will be fascinating to see how widespread the use of this interesting system becomes over the next few years.
www.lumenpulse.com
David Morgan runs David Morgan Associates, a London-based international design consultancy specialising in luminaire design and development.
Email:
david@dmadesign.co.uk Web:
www.dmadesign.co.uk Tel: +44 ( 0) 20 8340 4009 © David Morgan Associates 2012
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