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Distributed lighting control with daylight and occupancy adaptation
Highlights Present distributed lighting control methods for daylight and occupancy adaptation. Algorithms based on proportional-integral control under constrained networking. Performance of control methods compared using open-office lighting system model.
Abstract A distributed lighting system of multiple intelligent luminaires is considered for providing daylight and occupancy adaptive illumination. Each intelligent luminaire has a light sensor and an occupancy sensor that provides information on local light level and presence, respectively, and has a controller that adapts dimming level of the light source and a communication module. The illumination objective is to provide a desired average illuminance value over occupied/unoccupied zones at the workspace, specified in turn by occupancy-based set-points at corresponding light sensors. Two classes of proportional-integral (PI) controllers are considered to adapt the dimming levels of the luminaires to varying daylight levels under two networking scenarios. In one scenario, each controller operates stand-alone, sharing no information across other controllers, and has information about global occupancy. In the second scenario, controllers exchange control information within a neighborhood. The performance of the considered controllers is evaluated using photometric data from a DIALux implementation of an example open-plan office under different daylight and occupancy scenarios.
Distributed lighting control with daylight and occupancy adaptation
Highlights Present distributed lighting control methods for daylight and occupancy adaptation. Algorithms based on proportional-integral control under constrained networking. Performance of control methods compared using open-office lighting system model.
Abstract A distributed lighting system of multiple intelligent luminaires is considered for providing daylight and occupancy adaptive illumination. Each intelligent luminaire has a light sensor and an occupancy sensor that provides information on local light level and presence, respectively, and has a controller that adapts dimming level of the light source and a communication module. The illumination objective is to provide a desired average illuminance value over occupied/unoccupied zones at the workspace, specified in turn by occupancy-based set-points at corresponding light sensors. Two classes of proportional-integral (PI) controllers are considered to adapt the dimming levels of the luminaires to varying daylight levels under two networking scenarios. In one scenario, each controller operates stand-alone, sharing no information across other controllers, and has information about global occupancy. In the second scenario, controllers exchange control information within a neighborhood. The performance of the considered controllers is evaluated using photometric data from a DIALux implementation of an example open-plan office under different daylight and occupancy scenarios.
Distributed lighting control with daylight and occupancy adaptation
van de Meugheuvel, Niels (author) / Pandharipande, Ashish (author) / Caicedo, David (author) / van den Hof, P.P.J. (author)
Energy and Buildings ; 75 ; 321-329
2014-02-06
9 pages
Article (Journal)
Electronic Resource
English
Distributed lighting control with daylight and occupancy adaptation
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