Wi-Fi is flashing, and the speed of the network is 100 times faster.

Wi-Fi is flashing, and the speed of the network is 100 times faster.

What is the fastest running? The answer must be light. From the perspective of physics, the speed of light in a vacuum is the maximum velocity of the movement of natural objects found today. What will happen if light is used as a carrier to transmit data? At present, the industry has studied the Optical Communication Technology Based on LED indoor light waves instead of radio waves for data transmission. It will be 100 times faster than Wi-Fi, that is to say, the network will be connected at a speed of 1 GB per second, and it is cheaper and safer than Wi-Fi.

It is easy to implement Li-Fi. It only requires one light source, such as a standard LED bulb, a network connection interface, and a light detector as a control device, you can have a 100 times faster than Wi-Fi. In fact, this theory is easy to understand. The Li-Fi technology uses various light sources as signal emission sources, and controls the light switch through the Controller to control the data transmission between the light source and the terminal receiver.

The device is being tested by Velmenni in the capital of Estonia. Velmenni uses a light bulb that can transmit Li-Fi signals to achieve 1G transmission speed per second in the working environment, and the test results under the ideal laboratory conditions are as follows, the maximum transmission speed is 224 Gbps.

Harald Hass, a physicist at the University of Edinburgh, inventor of Li-Fi, said in his TED speech that he could use LED bulbs to flash as a computer to receive data, in the future, hundreds of millions of bulbs may become wireless hotspots. At the same time, he said that the biggest advantage of Li-Fi is that it does not interfere with other wireless signals like Wi-Fi, so it can be used on the plane or in other places where interference needs to be excluded.

Traditional broadband radio waves that send Wi-Fi signals are scarce and may be disturbed by other frequency waves, resulting in slow network speeds. Last year, Bell's lab records showed that the world's fastest broadband speed could reach 10 Gbps, which seems to give some psychological comfort to many people in the world who are slow to access the Internet.

Although the speed of Li-Fi is faster than that of Wi-Fi, at present, Li-Fi cannot completely replace Wi-Fi, and it cannot penetrate walls like radio waves or control directions, it can be used to supplement the Wi-Fi network, and it cannot work outdoors in direct sunlight.

However, in an ideal scenario, Li-Fi technology can be used in indoor areas with lighting such as offices and factories. The spectrum of radio waves is in short supply, and the visible spectrum resources are about 10000 times that of the former, which means that it will not be exhausted in a short period of time.

Hass said that the technology will be available to citizens in the next two to three years. But Deepak Solanki, CEO of the International Business Times, said it would take three to four years for the technology to reach consumers.