Wireless technology approach LED lighting bulb can own network

Light is unreachable dream, but it is light, one can control the weapon. Haas, a professor at the University of Edinburgh School of engineering, predicts that the bulbs may soon be used for wireless networks. In fact, the imaginative Professor, has been achieved through the ordinary light bulb data transmission, the potential speed of more than 10 megabits per second.

Haas put a small piece of microchips installed on the ordinary LED bulb, so that the lamp has a signal emission function. A small "bulb wireless network" formed. As soon as you turn on the lights in the room, the Internet is connected. In a speech, Haas showed a LED lamp lamp, can transmit data to a receiver on the table below. As long as the hand into the beam, the video signal will be transmitted to the screen behind, once the blocking signal, it will stop playing. Haas will be such a device called the "Light FidELity" (Li-Fi), which can be used for wireless data transmission from the television band "white space" or unused satellite signal, it can be applied to hospitals, airports, military and even underwater. In theory, the aircraft passengers can also use the light emitted by the cabin to surf the internet.

Haas said that there are many limitations of radio waves, they are rare, expensive and only a certain band. These limitations make it unable to keep up with the speed of wireless data transmission and affect the transmission efficiency. The light is part of the spectrum of electromagnetic waves, the visible spectrum of the space is 10 thousand times the radio waves, the world's use of light bulbs have 40 billion, with higher efficiency. "Any light source is a potential source of data transmission. In my opinion, the application prospect of this technology is beyond our imagination. All we have to do is to install microchips for all potential lighting devices, which will be linked to data transmission. "

With 40 billion bulbs on the earth, instead of the existing millions of wireless signal base stations, each LED bulb, can be turned into a network signal transmitter, energy saving, efficient, environmentally friendly, convenient. As long as there is light, there is a network signal, control the light of the times, so that wireless communication more magical and wonderful.