2017 - Universal lighting control system
This paper presents a lighting control system based on natural light monitoring and on occupancy control,characterized by installation easiness, even for existing plants, and cheapness.The system is based on a smart control unit and lighting control devices that can be directly mountedon the lamps in series connection. The installation is noninvasive and does not require any changes inthe wiring system, since the communication between each lamp and the control system is realized bymeans of a 2.4 GHz wireless protocol. The system functionality is ensured with any lamps, also withnon-dimmable ones. Tests and functionality verifications on the system were performed in laboratory,proving the applicability to real cases and performances that are comparable to the ones achievable withdimmable LED lamps, but with a significant cost saving.Hypothesizing the application of the proposed system and of different control technologies and strate-gies to a real academic classroom case study, different lighting scenarios have been simulated. Obtainedresults allow quantifying the effects in terms of energy consumption and CO2emissions relative to suchscenarios, achieving up to 69.6% of energy saving and 30.5% of CO2emissions avoided. From an economicpoint of view, the comparison between the proposed control system and commercial systems shows ashorter PayBack Period, from 9 to 5 years.
Illuminance distribution for artificial lighting. (a) 2D contour plot. (b) Render with lamps switched on.
T de Rubeis, M Muttillo, L Pantoli, I Nardi, I Leone, V. Stornelli, D. Ambrosini - Energy and Buildings 152, 24 (2017)
A first approach to universal daylight and occupancy control system for any lamps: Simulated case in an academic classroom