Last week we mentioned the possibilities of wireless mesh controls integrating with LED light
fixtures. When the time comes that we are able to offer lighting options like this on a large
scale, the energy savings and environmental impact could be quite significant. Last Thursday
(August 3, 2017), an article came out that discussed a current application, in southern Holland
(yes - across the pond), at the Chemelot Industrial Park in Geleen. One top priority of the
conversion from fluorescent lighting to wireless mesh controlled LED lighting was to be able to
control the 17,000 outdoor lights to either turn on or off and/or increase or decrease the lumen
output when and where it is necessary. Now that is awesome!
The article that I am referring to is “Wireless mesh controls augur huge savings, slash light
pollution at Dutch chemical plant” Published on August 3, 2017, By Mark Halper, Contributing
Editor, LEDs Magazine, and Business/Energy/Technology Journalist. The article states:
“The new ability to turn lights off and to dim them augurs enormous savings in electricity and
CO 2 emissions. It should also drastically reduce light pollution…The combination of the LED
luminaires and the wireless mesh controls should also slash maintenance costs, given the
expected long life of the LEDs as well as the modules' ability to monitor the performance of the
“Because we 'switch' the lights with software, dimming and switching is now possible,” said Han
Bak, CEO of Haarlem-based Chess Wise, the company providing the mesh technology which it
calls MyriaMesh [Chess Wise is one of several lighting-related companies involved in a one-for-
one replacement of existing fluorescent luminaires with LED models in a 15-year service-based
scheme]. “The main thing is the lights are only on when you really need light, which is
completely the opposite of the existing situation, when the lights were on 24/7.”
“MyriaMesh uses Bluetooth radio chips, but Chess Wise deploys its own proprietary radio-
agnostic mesh protocol, rather than using the recently ratified Bluetooth mesh standard. Chess
Wise builds modules that operate at either 868 MHz or at the Bluetooth frequency of 2.4 GHz,
as it has done for Chemelot.
Bak said Chess Wise is considering a Bluetooth mesh version to support customers who might
prefer it. Different requirements would benefit from different protocols. For example,
MyriaMesh might work better when signals have to travel longer distances between luminaires.
Chemelot's 17,000 lights are an apt fit with the MyriaMesh brand name, as “myria” literally
means a unit of 10,000.”
We will keep our eyes out for more examples and do our best to keep you updated on the
progress of Bluetooth mesh and LED lighting.
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