Let LED lights have China's "core"

The electromagnetic interference of conventional wireless communication will threaten the safety of the aircraft, and the aircraft in operation cannot communicate and access the Internet. Recently, the visible light communication (LIFI) products released by the China Aerospace Science and Technology Corporation's No.8 Second Edition will completely ruin this bottleneck in the industry.

The electrical signal is used to control the high-speed flicker signal from the light-emitting diode ( LED ) that is invisible to the naked eye to transmit information. As long as a tiny chip is implanted on the bulb, it can become a device similar to an AP (WiFi hotspot), allowing the terminal to access the network at any time. At present, two LIFI optical communication equipments successfully developed, one with a high speed of 150Mbps, have the characteristics of no electromagnetic interference and high confidentiality, and can be applied to radio-sensitive occasions such as airplanes and operating rooms. The other is low speed 10Kbps, suitable for indoor positioning, shopping mall advertising, intelligent transportation, photon access control and so on. At present, the positioning equipment on the market has certain limitations, and closed places such as indoors and tunnels cannot be accurately positioned. With the fixed fixture position and LIFI technology, the precise location can be determined in large supermarkets, shopping malls and tunnels, so that the positioning can be fully covered.

As one of the main force of energy saving and emission reduction, semiconductor lighting (LED) has attracted worldwide attention in recent years. Shanghai is one of the earliest four national semiconductor lighting industrialization bases in China. It has a solid technology and industrial base, and its annual output value continues to grow at a rate of more than 10%. At present, Shanghai's industrial development has basically formed an industrial structure dominated by high-end technology, high-end applications and high-end services, and has penetrated into various cross-cutting fields, and has made good progress in the fields of automobile, agriculture, medicine, and intelligent lighting. In the agricultural field, led light source is applied to greenhouse fill light, plant tissue culture, plant factories, edible fungi cultivation and other fields. LED has been widely used in the automotive industry for taillights and interior lighting. In recent years, technological breakthroughs have extended the application of LEDs to headlights. LEDs have a unique advantage in control, combined with networking, terminal equipment and applications, can be used to transmit information and data to create new business value.

Shanghai Zhangjiang is the core area of ​​the National Semiconductor Lighting Shanghai Industrialization Base. The Shanghai Semiconductor Lighting Engineering Technology Research Center, which is a combination of production, education and research, was formally established and became the core platform to support the development of Shanghai's LED industry. In 2011, the only national semiconductor lighting application system engineering technology research center in China's LED application field was approved by the Ministry of Science and Technology to settle in Zhangjiang. It was established on the basis of Shanghai Semiconductor Lighting Engineering Technology Research Center and established Shanghai's leading position in semiconductor lighting applications. Further leading and supporting the development of China's semiconductor lighting industry.

Zhangjiang Hi-Tech Park is home to all of Shanghai's high-end LED equipment companies. Shanghai LED industry features high-end equipment, high-end technology and application innovation, and has become a technological highland in the country. Equipment manufacturers such as Zhongwei, Zhonghao and Ideal Energy have independently developed cutting-edge MOCVD ( led chip manufacturing) equipment through Zhangjiang's funds, talents and policy support, reaching the international advanced level. Among them, Zhongwei's MOCVD equipment has been successfully launched, and it has been put into production at Dehao Runda and Sanan Optoelectronics.

At present, Shanghai Semiconductor Lighting Engineering Technology Association has become an indispensable platform for industrial promotion, helping enterprises to develop in testing services, consulting and evaluation, research and development services, and personnel training. It has a substrate testing laboratory, a material and device analysis laboratory, a light color characteristic testing laboratory, a packaging and reliability laboratory, an optoelectronic functional analysis laboratory, an electrical testing laboratory, a vehicle testing laboratory, etc. , cma certification. In addition, through the center's scientific research strength, it also plays an important role in industrial orientation. It undertakes the “Eleventh Five-Year Plan”, “Twelfth Five-Year Plan” and “Thirteenth Five-Year Plan” of Shanghai Optoelectronics Industry, and proposes the concept of LED beyond lighting.

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