With the sustained and rapid growth of China's economy, energy consumption is increasing, and the contradiction of energy shortage is becoming increasingly prominent. "Research and development of high-efficiency, energy-saving, long-life semiconductor lighting products" is included in the national medium- and long-term scientific and technological development plan (2006-2020) "energy" field "industrial energy saving" priority theme, the development of China's semiconductor lighting industry is welcoming from the main A major historical opportunity for innovation and leapfrog development.
In 2008, major natural disasters such as ice and snow and earthquakes occurred in the southern part of China, and power interruptions have seriously affected the disaster relief work and the lives of people in the disaster areas. Emergency lighting products are particularly important in disaster relief and medical rescue, especially LEDs have small size. Long life, high efficiency, low voltage, safe use, energy saving and other advantages, so the Ministry of Science and Technology will "LED emergency lighting efficient drive technology and system reliability research" as the 2008 863 project for research and development.
First, the importance of LED emergency lighting applications
Emergency lighting is an important safety facility for modern public buildings and industrial buildings. It is closely related to personal safety and building safety. When a building has a fire or other disaster, and the power supply is interrupted, the emergency lighting has an important role in personnel evacuation, fire rescue work, and the continued operation or necessary operation and disposal of important production and work. Through the research and development and application of LED lighting application products, it can change the current situation that China's current daily lighting and emergency lighting integration products are scarce and can not guarantee the production and living requirements in an emergency; combined with the implementation of national energy conservation and emission reduction targets, a series of civilian applications should be developed. Emergency semiconductor lighting products, in addition to meeting energy-saving requirements in daily use, provide sufficient illumination and lighting time in emergency situations to escape, rescue and repair power systems. Develop lighting products with built-in power generation function in special emergency environment, which is easy to carry and use, can be recycled many times, and has its own protection function.
When natural disasters such as fires and earthquakes occur, emergency lighting is an essential equipment for escape and disaster relief. It is expected that the market demand for semiconductor lighting series applications with emergency functions will exceed 2 billion yuan in the next three years. With the development of China's economy, the safety awareness and safety standards of the society have been greatly improved, and the requirements for emergency lighting products are also getting higher and higher. This not only requires such products to meet emergency needs, but also has the performance of energy saving, humanization, high reliability, and the biggest advantage of emergency semiconductor lighting is here. At the same time, with the development of China's economy and society, the demand for lighting in disaster relief, field construction and off-grid and harsh environments is increasing, and there is also a huge market demand for emergency semiconductor lighting products.
The goal of the "Emergency Lighting Efficient Drive Technology and System Reliability Research" project is to promote development by application, break through the key industrialization technologies urgently needed for LED lighting applications, and improve the semiconductor lighting industry chain. Through the integration of lighting technology design , secondary optical design, thermal design, light source structure design, drive circuit and other application technology systems, the scaled application of domestically produced devices in domestic products is promoted.
It mainly studies the development of LED light source for emergency lighting, the design of LED emergency lighting, the secondary optical light distribution design of LED emergency lighting, the overall heat dissipation design, the special drive power for emergency lighting and the development of intelligent control system.
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