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designing lighting (dl) Aug/Sep 2024

Page 44

GET CONTROL!

After the control system is installed, the decentralized architecture of Bluetooth NLC allows it to be expanded based on changing needs, ensuring scalability and for the control system to be realized over time, highly suited to existing buildings.

ADVANTAGES OF WIRELESS

BUILDING ON PREVIOUS TECHNOLOGY

Networked lighting control systems may be wired, wireless, or a combination of the two. The advantages of wireless lighting controls, such as reduced installation cost and flexibility of application, will propel them to overtake shipments of wired lighting control systems by 2027, according to ABI Research, which projects global shipments of wireless controls to grow from 2022 to 2027 at a CAGR of 115%.

Bluetooth NLC covers the device layer to build on Bluetooth LE (2010/radio layer) and Bluetooth Mesh (2017/communication layer) to achieve the first full-stack standard for wireless mesh-networked lighting controls.

The architecture of a typical wireless control solution includes three layers. The radio layer defines how devices send data. The communication layer defines how they communicate. And the device layer defines the roles and responsibilities for each device node in the network. Each layer may be based on a proprietary technology or a standard like Bluetooth.

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designing lighting

Its inaugural round of specifications spans six device roles, including occupancy sensor (occupancy sensing), ambient light sensor (light level sensing), energy monitor (energy data reporting), scene selector (wall switch/station for on/off and/or lighting scenes), dimming control (dimmer), and lightness controller (luminaire with an integrated controller). A single hardware device may combine multiple roles, such as a Bluetooth NLC occupancy sensor with a DALI/D4i port that provides the roles of occupancy


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