Chongqing pilot, a bright LED lights on the Internet

Reporters learned that in the future without the WiFi signal, through the green lighting LED lights will be able to high-speed Internet access to visible light communication technology, faster than traditional networks faster than 100 times, Download 1G movie just about 0.2 seconds. Chongqing as a pilot city, is currently in the integration stage of technical research.

Yesterday, reporters in the China visible light communication industry technology innovation alliance (chips) and China research financing alliance signing ceremony was informed that in the future no WiFi signal, through the green lighting LED lamp can high-speed Internet visible light communication technology, will bring to people's life of great change, the speed is 100 times faster than the traditional network. Download 1G movie just 0.2 seconds.

At the signing ceremony, Chongqing as the application of visible technology pilot city, four group will undertake the development and application of coal mine visible navigation, is currently in the stage of integrated technology research.

At least five years into the average family

National digital exchange system engineering technology research center director Wu Jiangxing introduction, light and radio waves are the same as the electromagnetic wave, the basic principle of network signal transmission is consistent. Therefore, as long as people in the LED light bulb in a chip, bulb into Internet transmitters, millions of times per second can control the flash, because the frequency is too fast, people simply not aware of, but the photosensitive sensor can receive these changes, "the flashing is actually a kind of opening and closing process, the flicker frequency binary fast data encoding 0 and 1 signal lights, and effective transmission. So, the light will have a wireless router, communication base station, WiFi access point or even GPS function, the light of the computer through a special receiver can receive signals to achieve Internet access. At present, the technology in the application is limited to the industrial and commercial areas, to enter the ordinary family at least 5 years. As for the price, because it has not yet to the stage of industrialization, so the current price of expensive lighting.

Expected to play a role in the engine room

What will be the impact of visible light communication in our lives?

Wu Jiangxing said that the use of visible light communication technology, you can easily build a home broadband integrated information service system. Through the ordinary family power line, the television signal can be sent to the ceiling lamp, and can be received on the TV set by the visible light box.

Visible light communication can also be combined with existing wireless networks, such as WiFi, mobile networks, constitute an interactive network. "Wu Kong Hing for example, using the technology of TV drama can be inserted into the potential advertising, such as watching a television drama, the heroine's clothes feel particularly good-looking, the mobile phone can be directly used in front of the television advertisement information scanning potential appeared, tell you this dress, how much money can buy where.

For example, now you have the hands of cards, once lost a lot of trouble, the future will not need to use this technology to real savings card, only use LED lamp LED lamp with mobile phone docking on automatic teller machine, can complete the withdrawals, deposits.

Wu Jiangxing also introduced, with the deepening of communication functions, the shape of the lamp will also be a huge change, our coffee table, dining table, furniture are likely to become practical lighting and high-speed wireless access point. And in the streets, the technique can be used for traffic control or broadcast news, weather and other public information, such as car equipped with LED LED headlights, taillights, can thus exchange traffic information to prevent or reduce accidents, traffic lights can also and auto communication. In addition, this technology can also play a role in places such as the engine room, the hospital, the underground, where it is not possible to use the radio transmission network.

Can not and will not replace the traditional network

Wu Jiangxing said that China's 863 program started in 2011 to study the deployment of visible light communication technology, after more than two years of scientific research, in the modulation bandwidth expansion, real-time transmission rate, integrated network architecture has been made in a number of important research results, at present, our country based on visible light communication and practical applications, and the developed countries in the same starting line. "

"Although the visible light communication has many advantages, such as no electromagnetic interference, is also harmless to the human body, but it is not, it is not necessary to completely replace the traditional wired network and wireless communication, it only provides a new way to wireless communication. You can imagine, in the near future, we will be able to turn on the lights at home watching TV, the lights will be able to have high-speed Internet access, high-speed digital devices can light information sharing between the high, get rid of the current mobile broadband is not convenient. Wu said.