Trend master: LED lights will become the cornerstone of the LiFi Market

Apple Daily News in the popular wireless communication environment, modern people over exposure to electromagnetic waves on the threat from unabated, mobile communications to a wide area network, wireless local area network, but by radio transmitting information, waves of higher strength, better transmission efficiency, but the potential risk to human health is higher. Scientists began to search for wireless information transmission without radio waves, visible light to become the best choice of health without worry on the human body, using optical visible light transmission of information, become the offbeat wireless network technology.

LED lamp as base station

As early as 2000, Japan Keio University Tanaka and SONY Computer Science Research Institute of Spring Hill et al. Proposed using LED lamp as the communication base station information transmission; and a small peak in 2002 Tanaka et al., the data transmission system is a combination of power line carrier communication and LED visible light communication; 2008 Taiyo Yuden Japan. Show the white LED wireless communication system, the maximum transmission distance of 20 meters.

In 2009, Brien et al., at the University of Oxford, reached a 100 Mb/s (per million bit) communication rate for visible light communication technology. In 2010, Germany's Fraunhofer HHI Institute, the visible light communication transmission rate increased to 513 Mb/s.

In 2011 the British University of Edinburgh professor Haas (Harald Haas), in a public speech, featuring the LED visible light communication technology, named LiFi (Light Fidelity, light network, known as WiFi) with only one word. 2012 Haas founded PureVLC (later renamed PureLiFi) company, research and development of LiFi products, in cooperation with the French LED lighting company Lucibel in 2015, plans to launch this year to support LiFi products.

Reduce electromagnetic waves

After more than 10 years of research and development, LiFi has been out of the laboratory into the commercialization of technology, the current highest transmission rate of LiFi technology up to 224 Gb/s (at least 1 billion bits per second), far more than WiFi transmission rate. Because LiFi is the transmission of information through the visible light, must be in the range of LED bulb lighting can be transmitted, unable to penetrate the wall.

This year is the first year of the LiFi technology, PureLiFi and Lucibel will promote the LiFi function with the LED lamps, this lamp has the function of wireless transmission. By converting the traditional lighting into a wave of LED lamps, LiFi can get a free ride, reducing the cost and barriers to building LiFi infrastructure. LiFi function with the LED lamps listed, will become a pioneer in the LiFi market.

The biggest challenge is the popularization of LiFi technology to build LiFi ecosystem, such as the development of IC chip supporting LiFi functions listed, and support LiFi communication devices (such as smart mobile phone, etc.) are required to achieve the time and investment.

Sensitive to electromagnetic interference, it will be the most willing to import LiFi places, hospitals, nuclear power plants, petrochemical plants and aircraft cabin, etc., will be the most vulnerable bridgehead LiFi attack. The birth of LiFi technology, will be able to improve the quality of the network, and to achieve the benefits of reducing the spread of electromagnetic waves.

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