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Boldly imagine that in the future you can access the public network through street lights, and how magical it is for autopilot cars to exchange data through headlights.
Whether you are using a wireless network in a cafe, or “borrowing†a network from the guy next door, or competing for bandwidth resources at a conference, when more than one device is connected to the network, the speed of the network is slow. . As more people and more and more devices access the wireless network, blocked waves will make it difficult to obtain reliable signals.
And radio waves carry only one band in the frequency of data. If we can use other bands to surf the Internet, what will happen?
The German physicist Harald Haas thought of a "lighting data transmission" method to solve the problem of data transmission congestion. This method releases the transmitted data from the fiber and uses the LED beam to transmit in an open space. The brightness of an LED lamp will constantly change at a speed that exceeds the perceived range of the human eye to carry data.
Haas said that the invention he referred to as the "D lamp" can transmit data at speeds exceeding 10 Mb/s, which is faster than normal access bandwidth. In the future, laptops, smart phones, etc. in the home will most likely transmit data in the beam of the room. As a result, the security will be greatly improved. Once you can't see the beam, you won't be able to get the data.
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