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Most of the commercial lighting control solutions use PIR sensors for occupancy sensing. PIR detects the occupancy whenever there is a change in the infrared radiation. PIR sensors may sense unoccupied even if there is very little movement. This is referred to as the snoozing effect. Because of the PIR snoozing effect, lights may be turned off and on frequently that leads to visual discomfort. To address this issue, lights are grouped in zones to avoid visual flicker and are turned off only when all the lights in a zone are sense un-occupied.
Lighting control devices are energy efficient but still there exists an energy efficiency gap in the communication technologies. Energy consumption of communication devices has an impact on electricity generation which in turn affects greenhouse gases and carbon footprint. Usage of energy efficient VLC not only reduces energy consumption but also reduces the emission of Green House Gases.
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IEEE/ICACT20230182 Slide.09
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