Does Li-Fi affect LED lighting quality?

- Feb 06, 2018-

Recently, researchers at the University of Edinburgh conducted a one-year study to determine if Li-Fi could adversely affect the energy efficiency of LEDs. The study was funded by the British Engineering and Natural Sciences Research Council (EPSRC).


The researchers explained the project in a paper on "Studies of the Effects of Visible Light Communication on Illumination and Display Quality." They found that LEDs can meet the needs of wireless communications without compromising the light or environmental benefits they provide.


Research shows that while transmitting digital data while the LEDs are emitting light, the LEDs neither discolor nor darken the light, nor does the LED consume more energy. Maintaining the quality of lighting is an important consideration as it can have a significant impact on the physical and mental health of people in the home and workplace.


Wasiu Popoola, Ph.D., principal investigator at the University of Edinburgh's Li-Fi Research Center and the Institute of Digital Communications, said these are major concerns for the industry, hindering consumers' use of Li-Fi with home-use LEDs and hindering Li-Fi The widespread adoption.


With the help of two different data transmission techniques, researchers studied LEDs that produce warm white light and cool white light. The first is on-off keying, during which the LED's operating mode is the same as the Morse code and can be quickly switched on and off for the human eye. Second, in the meantime, the light intensity is changed to achieve the same goal.


Both of these technologies have been successful without significantly reducing the brightness or life expectancy of LED bulbs and without causing any significant light color change. Both of these technologies have a slight subtle effect on the amount of heat generated by the LEDs. The generation of heat is another important consideration, as rising temperatures mean that LEDs use more power to generate light and reduce their energy efficiency.


Dr Popoola added: "Our increasingly connected world requires more bandwidth than the bandwidth available in the crowded radio spectrum of our spectrum, and our results make up for the key knowledge gaps that, for future optical communications, Our results are very encouraging and will help to realize the full economic and social potential of the wireless future.LED manufacturers need to know the impact of joining the data transmission capability on their products.Our research shows that the use of LED lights to supplement Wi -Fi does not affect. "


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