LiFi market opportunities LED lights do network entrance effortless

According to the first financial daily reported that WiFi vendors may not be another WiFi manufacturers, but halfway out of the lamp manufacturer.

LiFi (LightFidelity), a branch of visible light communication technology, LED vendors are frequently on the television and LED high handsome combination of Bai Fumei". By embedding in the LED chip, LED lights become a wireless hotspot, an alternative "WiFi" - it also has WiFi does not have the characteristics of ultra-high speed, secure communications, precision positioning, etc..

However, WiFi manufacturers do not have to be too nervous, everything has just begun.

Indoor information network convergence agent?

Optical communication is not new. People have been accustomed to fixed optical fiber transmission of optical signals, high-speed Internet access. The field of mobile communications, but also experienced 2G, 3G, 4G iteration. Visible light communication (VLC) and it is not essentially different, the nature of light is wave, VLC uses a wider frequency of visible light transmission signal. However, the communication industry is becoming more and more troubled by the limited spectrum resources, and each iteration is not open to discuss how to allocate new spectrum. The visible spectrum width is at least 10000 times of the radio spectrum, has not yet been developed.

The generation of LiFi technology was originally designed to solve the problem of spectrum utilization. By combining the high frequency switch LED lamps and communication technology, scientists have created LED-LiFi lamps similar to Morse code, and the corresponding receiving, by carrying on a terminal transmission device to form VLC communication circuit is feasible.

"The LED lights in the implanted chip, LED lights into a wireless hotspot, and to achieve the purpose of communication using rapid pulse, wireless transmission, binary encoding, the use of LED visible light to replace the new technology of electromagnetic wave transmission of data, called LiFi. KingSun display.

Communication technology, founder of telegraph inventor Baer had envisioned as a visible light communication media, however, a useful optical carrier generation technology at that time neither, nor will the light from one place to another place. The LED lamp has a high profile rate, the human eye can not feel the light flashes, and with the help of new technology, LED lights have been able to transfer data to 5 meters away, LiFi has a feasibility.

Compared to WiFi, the data transmission rate of LiFi lamp now can reach 10Gbps (100 times the rate of 4G), and visible light cannot pass through walls, home Internet will become safer in precise positioning, but also shows the advantages of LiFi. Supporters believe that LiFi technology has the basis of alternative WiFi. However, some people believe that, although the substitution effect of LiFi, although there will be visible light as a carrier of communication there are some limitations in the future, LiFi may complement the coexistence of WiFi, applied to the smart city.

"I think the visible light communication will become the future interior fusion agent information network, not only can provide valuable spectrum resources for the triple play and N network integration, will be more convenient, broadband, green, energy saving, safety and other advantages of this technology into full play. Triple play proposal, the Chinese Academy of Engineering Wu Jiangxing said.

Wu Jiangxing believes that for the upgrading of traditional industries and emerging industries, the birth of business model innovation and prosperity of service industry, VLC will play a strong role, "will be a starting point for strategic emerging industry output value has trillion. "

Commercial start

The 2014 Mobile World Congress, a company engaged in NETs (new energy) of the French engineering company said, the company is listed with the French Research Institute CEA-Leti jointly developed a LiFi receiver, the company also said that in the first half of this year with a foreign company to carry out joint research and development of Intelligent Mobile phone for 12 months.

However, LiFi technology system has always been independent of the existing radio technology, another system, access to the system is not easy to support.

The Ministry of science and technology in the first half of 2013 launched the first Chinese visible light communication related national high technology research and development program (863 Program) and the national basic research program (973 Program) research project. In 863, the 973 issue, many domestic universities and research institutions in carrying out the research of visible light communication, a university can validate the technology of LiFi communication and positioning in the laboratory, such as University of Science and Technology of China professor Xu Zhengyuan team, Fudan University Professor Chi Nan team, Peking University professor Li Hongbin team etc..

There are business enterprises in Beijing City CY for the 5 billion yuan scale "fund" visible light communication industry for coal mine safety production network, LiFi network, indoor spots on the network, mobile payment network, indoor visible light positioning, media advertising network 6 industrial R & D projects.

For LED manufacturers, the traditional LED lights into the network entrance, do not have too much effort, but there is a huge potential market opportunities, LED vendors therefore showed enthusiasm. However, the realization of the other half of the LiFi industry also requires terminal manufacturers, chip manufacturers. It is not enough just to use heavy equipment to receive data, such as the scale of the application in the field of consumer electronics, but also need to achieve data return, miniaturization and optimize the user experience.

Guangdong provincial government on the research and development of LiFi very seriously, relying on the advantages of local LED industry, to set up a major scientific and technological projects, invested 150 million yuan a year to promote technology research and industrialization. KingSun LED manufacturers have also been keen on the industrialization of LiFi and Tsinghua University in 2013