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Siemens AG of Germany issued a communique on the 15th that the company and the scientists of the Heinrich Hertz Institute have used special methods to make the light-emitting diodes (LEDs) flash at high frequency, and nearby photodetectors will receive such light signals into The electric pulse has an information transmission speed of 500 megabits per second.
Previously, the maximum transmission speed of visible light communication was 200 megabits per second, which was also jointly created by Siemens and Heinrich Hertz Institute. Compared with wireless local area networks, visible light communication technology can transmit signals using indoor lighting devices such as fluorescent lamps or light-emitting diodes. With a computer with receiving and sending information and a mobile information terminal, users can download and upload data in the place where indoor lighting is illuminated. This technology is highly secure, as long as the curtains are used to cover the light, the information will not leak out to the outside, reducing the possibility of data theft.
German scientists rewrite LED visible light communication data transmission records
German researchers have created a new record for 500 megapixels of visible light communication per second.