Does Li-Fi affect the quality of LED lighting?

Release date: 2018-02-01 Source: Guzhen Lighting News Sharing:

According to the data, LiFi uses a well-laid device (ubiquitous LED light) to form a device similar to an AP (WiFi hotspot) by implanting a small chip on the bulb, so that the terminal can access the network at any time. This skill is transmitted by changing the blinking frequency of the room lighting light. It is only necessary to turn on the light indoors and access the Internet without WiFi.

This skill means that you only have access to a wireless Internet connection with a light bulb. The number of light bulbs in the world is now about 14 billion. In fact, this also means that any street light can be an Internet access point. However, the visible-light communication skills nicknamed "Li-Fi" not only improve the coverage of the Internet.

Recently, researchers at the University of Edinburgh in the UK conducted a one-year seminar to determine whether Li-Fi would have a suffocating effect on the power of LEDs. The seminar was sponsored by the UK Engineering and Natural Sciences Research Council (EPSRC).

The researchers explained the project in a paper entitled "Study on the Influence of Visible Light Communication on Lighting and Visual Quality". They found that LEDs are able to satisfy the needs of wireless communications without affecting the quality or environmental benefits they provide.

The study indicated that the digital data is transmitted while the LED is emitting light, and the LED does not discolor or darken the light, nor does it cause the LED to consume more energy. Adhering to the quality of lighting is an important consideration because it can have a serious impact on the physical and mental health of people in the home and workplace.

Dr. Wasio Popoola, Principal Investigator of the Li-Fi Research Center and Digital Communications Research Institute at the University of Edinburgh, said that these are the top issues that the industry values, which prevent consumers from using Li-Fi in combination with home LEDs and also prevent Li- Wide selection of Fi.

With the help of two different data transmission skills, the researchers discussed LEDs with warm white and cool white light. The first is to open the vital control. During the period, the LED works in the same way as the Morse code. It can be quickly switched on and off, and the human eye is not easy to detect. Second, during the transmission, the light intensity is changed to complete the same policy.

Both of these skills were successful and did not significantly reduce the brightness or expected life of the LED bulb, nor did it cause any significant color change. Both of these skills have only a slight effect on the heat generated by the LED. The occurrence of heat is another important consideration. As the temperature rises, it means that the LED will use more power to generate light and reduce its power.

Dr. Popoola made up: "The more international bandwidth we need to connect, the more bandwidth we can provide than the RF part of the spectrum. Our research results make up for the critical knowledge gap. For future optical communications, Our results are very encouraging, which will help to complete the full economic and social potential of the wireless future. LED manufacturers need to know the impact of adding data transmission to their products. Our research indicates that LED lights can be used to make up for Wi. -Fi has no effect."

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