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VLC enabled luminaires are fixed on the ceilings and visible light is used as a medium of communication between the adjacent luminaire. In addition to illumination LEDs, each luminaire consists of a VLC Transceiver module.
VLC requires line of sight to establish communication between the adjacent luminaire on all four sides. So, a quad directional full duplex VLC transceiver has been designed with 4 communication LEDs that acts as a transmitter and 4 photo detectors that acts as a receiver.
Luminaires are grouped into zones based on user preferences. VLC Transceiver is designed with adjustable slits for enabling zone control.
Luminaires are controlled through visible light based on the occupancy state. Upon detection of occupancy by any luminaire in a zone, all the luminaires under the zone are turned ON. Upon detection of non-occupancy state, a luminaire will be turned OFF only when all other luminaires in a zone is non-occupied.
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IEEE/ICACT20230182 Slide.12
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