Wi-Fi has had a huge impact on the use of mobile computing, allowing people to access the network from anywhere. But Wi-Fi also has its shortcomings, so a new standard was born: Li-Fi, if it can be successfully listed, it will be able to fill the gap in Wi-Fi technology.
What is Li-Fi?
Li-Fi, visible light wireless communication, is an emerging wireless protocol that uses visible spectrum to provide wireless network access. Li-Fi transmitters use LEDs to adjust the light intensity, mostly beyond what our eyes can perceive, and are read as data by a light-sensitive receiver. Since LEDs already use chips to control their output, they can modulate millions of times per second, and theoretically transfer data at 100 times faster than Wi-Fi.
What does this technology mean? As long as you have a light bulb, you can get a wireless internet connection. However, this technology has not yet been listed, and some people have begun to question that LiFi technology will adversely affect the energy efficiency of LEDs.
Does Li-Fi really affect the quality of lighting?
According to foreign media reports, researchers at the University of Edinburgh in the United Kingdom conducted a one-year study to determine whether Li-Fi would adversely affect the energy efficiency of LEDs.
The researchers explained the project in a paper entitled "Study on the Effects of Visible Light Communication on Lighting and Display Quality." They found that LEDs can meet the needs of wireless communications without affecting the quality or environmental benefits they provide.
Studies have shown that when digital light is transmitted while the LED is emitting light, the LED does not discolor or darken the light, nor does it cause the LED to consume more energy. Maintaining lighting quality is an important consideration because it can have a major impact on the physical and mental health of people in the home and workplace.
Dr. Wasio Popoola, Ph.D., researcher at the University of Edinburgh's Li-Fi R&D Center and Digital Communications Research Institute, said that these are the main concerns of the industry, which have prevented consumers from using Li-Fi with home LEDs and hindering Li-Fi. Widely adopted.
With the help of two different data transmission technologies, the researchers studied LEDs that produced warm white and cool white light. The first is to open the key control. During the period, the working mode of the LED is the same as that of the Morse code. It can be switched quickly and the human eye is not easy to detect. Second, during continuous transmission, the light intensity is changed to achieve the same goal.
Both of these techniques were successful and did not significantly reduce the brightness or life expectancy of the LED bulbs, nor did it cause any significant color change. Both of these technologies have only a slight impact on the heat generated by the LEDs. Heat generation is another important consideration because rising temperatures mean that LEDs use more electricity to generate light and reduce its energy efficiency.
Dr. Popoola added: "Our increasingly connected world needs more bandwidth than the bandwidth that the crowded RF portion of the spectrum can provide. Our findings compensate for critical knowledge gaps 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 adding data transmission capabilities to their products. Our research shows that LED lights are used to supplement Wi -Fi has no effect."
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