A fool or a real goods Taiwan ITRI and pushed for visible light communications

LED visible light communication technology Research Institute Taiwan development, visible light communication module device in LED lamps, providing about 60 Mbps transmission capacity through lighting, to provide watching high-definition video and broadband Internet service, makes the LED lamp energy-saving lighting and intelligent communication features, can achieve the indoor positioning function, indoor navigation, location management, service personnel and the mobile phone to store location services and other commercial applications.

Taiwan Zitong Institute ITRI que Zhike said, because the LED with energy efficiency and advantages of long service life, LED has gradually become the most popular major indoor lighting lamps. Compared with the traditional incandescent lamp and fluorescent lamp, LED bandwidth can provide about 60Mbps transmission rate, so the use of LED to provide broadband Internet visible light communication technology in the past 1 years, the rapid rise.

Because LED is necessary only to indoor lighting, with visible light communication module can provide Internet access, and the LED luminescence band without expensive spectrum (License Free), authorized with the cost advantage, after the place as long as there is LED lamp, can achieve the function of networking. In addition, LED has no electromagnetic interference, so the LED visible light communication can be used in hospitals, airports and other special environment, and because the lighting angle and range has limitation, signal transmission does not penetrate, so the need for secure communication, conference room low electromagnetic field, such as hospitals, airports etc..

Taiwan ITRI Zitong deputy director Zheng Shengqing said that Taiwan invested ITRI LED visible light communication technology research and development has been more than three years, at present this technology to the product stage, and has been transferred to Taiwan Netcom manufacturers. In addition, visible in the sea penetration than the general RF band high several times, the future is also suitable for use in high-speed underwater wireless communication, the application and the Taiwan ITRI diving mask combination, and through the water LED flashlight, the diver can through visible light to replace the traditional sign language the diver or handwritten board, communication is convenient.

In order to make the LED visible light communication application is extensive, Taiwan will also start ITRI visible light communication module into small wearable module, as well as the development of visible light communications applications APP mobile phone, smart handheld devices that can receive visible light communication signals, providing positioning card, multimedia information receiving applications such as exhibition booth.

Zheng Shengqing also pointed out that Taiwan ITRI also further development of visible light precise indoor positioning algorithm to overcome the interference between multiple LED lights, visible light indoor positioning accuracy to within 20 cm, the future can also be used to store shopping, so customers can enjoy the indoor positioning guide service, convenient for specific commodities. The store can also view the product launch active commodity information push service, when customers close to the goods, visible light communications mobile phone can accurate positioning to automatically detect and automatically receive the goods related information, to enhance the customer shopping convenience and to store rate.

For more information about LED, please click on China LED network or pay attention to WeChat public account (cnledw2013).