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A Lighting direction and Luminous Flux Control for Energy-efficiency under Illuminance Requirements in Indoor Lighting Systems
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 Title & Authors
A Lighting direction and Luminous Flux Control for Energy-efficiency under Illuminance Requirements in Indoor Lighting Systems
Kim, Hoon;
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 Abstract
The management of energy resources for efficient utilization of the energy resources while reducing the system costs is a critical technical issue. Among many kinds of the energy resource management, the energy reduction for indoor lighting systems is getting much concern as a large portion of energy consumption has been made for indoor lightings. In this paper, an energy-efficient lighting control scheme for indoor lighting systems in order to reduce the energy consumption by controlling the luminous flux and the lighting direction under the illuminance constraints is proposed. With the use of the user location information for the luminaire which is closely located to the user, the proposed scheme firstly sets the light direction of the luminaire to be aligned to the user location. Then, an optimization problem to find the luminous flux of each luminaire is formulated in order to minimize the luminous flux sum of the luminaires with the constraints for the dynamic ragne of the luminous flux, and the light flux for each luminaire is determined by the solution of the problem. Simulation results show that the proposed scheme outperforms the luminaire control scheme with only the luminous flux control in the evaluation of satisfaction of the required illuminance level.
 Keywords
Indoor Lighting Systems;Optimization;Luminaire Control;Lighting Direction;Luminous Flux;
 Language
Korean
 Cited by
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