Bluetooth Mesh, Commercial Lighting and the Distributed Sensor Problem

Background

The Bluetooth Mesh specification was recently been published which enables standards based interoperability for lighting systems.

The design point for this specification is a discrete sensor such as a manual switch or occupancy sensor on the wall or ceiling sending information to a group of fixtures; however, in commercial lighting the trend has been to integrate controls directly into fixtures. This sensor integration creates a new set of stresses on the network in coordinating the various sensors and thus challenges the 1,000 node scalability Bluetooth Mesh claims.

Discrete vs. Embedded Sensor Lighting Systems

Discrete Sensors

A discrete sensor lighting system has one set of sensors per group – typical sensors would include an occupancy sensor, an ambient light sensor for daylight harvesting and a manual switch for dimming and over-ride. …

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