Occupancy identification based energy efficient illuminance controller with improved visual comfort in buildings

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2017

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Under this research Smart energy efficient and visual comfort lighting system has been developed based on the presence of occupancy and occupancy localization information. The developed system consist of non-contact occupancy identification system, wireless sensor network, and wireless light intensity control device. The controller is constructed on a fuzzy logic based closed loop controller developed on a single board computer powered by 900MHz quad-core ARM Cortex-A7 CPU. Lighting is an important factor in maintaining the visual comfort in a living premise. According to literature, the lighting consumes about 40% of total electricity consumption in a building. Since lighting energy requirement contains a larger share of energy demand any saving from that demand will result in a reduction in areas of energy wastage, negative impact to the environment and the cost to the consumers and so on. The results of the experiment indicate that the improvement of visual comfort and enhanced energy performance by avoiding of unwanted visual comfort level in a living premise.

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