Presence-specific lighting ‘cloud’ aims to save energy and money

by FM Media
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Melbourne-based entrepreneurs Chris Duffield and Danny Bishop are looking to raise $5 million in capital to scale up their production of a wireless lighting control system based on a sensor device, smaller than the size of a matchbox, integrated into light fittings.

As the Organic Response sensors detect human presence within a building, the Australian Financial Review reports, infrared connectivity allows the lights to adjust to occupancy levels. There’s no need to install and wire a separate control system, as the sensors communicate with each other.

“Existing lighting control systems use a wired network and have high levels of complexity,” Duffield told the newspaper. “That results in high costs and requires large amounts of skilled labour to install and maintain.”

The moment a Sensor Node within any of the luminaires detects occupancy, Organic Response says, the luminaire responds by outputting a predetermined light level (for example 100 percent). At the same time it coveys this information to neighbouring luminaires using a level 1 proximity-limited infrared signal.

On receipt of this signal, the neighbouring nodes know someone is located within one light fitting of them and they respond by outputting “a predetermined light level appropriate to an occupant in that vicinity” (such as 80 percent brightness), and relay a level 2 signal to their own neighbours, telling them that there is an occupant two light fittings away.

This communication quickly spreads across the floor, creating an Occupancy Information Cloud. Each Sensor Node knows at all times how close the nearest occupant is, and can adjust its light level to correspond with this position.

“The result, Organic Response says, “is comfortable lighting conditions around all occupants, lower light levels in areas adjacent to them, but importantly no wasted lighting of unoccupied or naturally lit areas.”

 

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