Fudan LED lighting Internet technology was poured back cold water data how to break?

Recently, Fudan University successfully completed an experiment, and the network download speed under lighting was 3.7G/sec, which also set a new world record. The researchers connected the network signal to a 1W LED bead, and the four computers under the light could access the Internet. In the experiment, the highest one-way transmission rate reached 3.7G per second, creating a one-way transmission in the field of visible light wireless communication. Speed ​​record. The real-time system in the experiment has an average Internet speed of 150M, which is the fastest “lighting Internet” in the world.

After the news of the lighting Internet technology was reported by the media, many netizens appeared to be very excited. However, Chi Nan, a professor at the School of Information Science and Engineering at Fudan University, who is responsible for this research project, also poured cold water on the technology, in order to truly mass production applications. There are two problems in front of them. The first is the two-way transmission of data. The Internet is not only downloaded but also uploaded. It is easy to illuminate the computer on the computer. But how big is the light bulb installed in the computer or mobile phone to return the data?

Another problem is the chip, which is also the core issue. In Chi Nan's lab, her equipment is as big as two notebooks. How do you make them the same size as a mobile phone? This requires the development of chips. But research and development requires a lot of money. Under the premise that people already have Wi-Fi, will they spend a lot of money to develop the chips needed for Li-Fi? Chi Nan believes that the promotion of this technology may depend on the application in a certain field. Li-Fi has a long way to go if it is really popular.

Chi Nan said that the earliest breakthrough of Li-Fi is a special industry application field, such as Europe, which is placed in a large aircraft or secure communication, which may be the first application in these areas. But it really may take a while to really spread to thousands of households.

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