Analysts pointed out that China's lighting industry brands are highly fragmented, the industry has low barriers to entry, and the technical content is not high. Nearly 10,000 companies in the market have gathered together. Most lighting companies are struggling to get OEM orders. The average R&D of sales in the industry is only 5%. The top ten brands account for only 20.35% of the total profit of the lighting industry. In home appliances, communications and automobiles. In the industry, the top 10 companies accounted for more than 80% of the total profit of the industry.
The analyst predicts that strengthening the company's creative genes, strengthening independent research and development, upgrading the industry, and improving the core competitiveness of enterprises and added value of products will become the way out for the Chinese lighting industry to get out of trouble, and also the key to the global safety of the Chinese lighting industry. . Looking back at many multinational brands in Japan and South Korea, they have taken a road from imitation, low-cost manufacturing to impact the market to improve innovation and export brands.
R & D, NVC breakthrough
The transition is difficult and painful for many companies, but the forerunners who are prepared early are on the move. Recently, the NVC Lighting R&D Center in Pujiang Town, Minhang District, Shanghai, which is located in Shanghai, was officially completed.
In the research and development of technology, it is so popular. In the lighting enterprises with low-end products, NVC Lighting is the forerunner of the special case.
Energy saving, cutting the pulse
At present, energy-saving and environmentally-friendly green lighting products and light sources are the development trend of the industry. This year, the Ministry of Finance and the National Development and Reform Commission jointly issued the Interim Measures for the Administration of Financial Subsidy Funds for Efficient Lighting Products Promotion, which is to increase efforts to promote high-efficiency lighting products and promote Important measures for energy conservation and emission reduction targets.
Wang Jinxi, chairman of the China Lighting Association, told reporters that energy conservation and emission reduction is a very important issue for the lighting industry. Overall, the overall lighting consumption accounts for about 30% of the country's total, equivalent to 300 billion kWh in the lighting industry. Therefore, it is necessary to vigorously promote more efficient and energy-saving electrical lighting products, and to improve the efficiency of the use of lighting appliances themselves, and eliminate backward electrical lighting products.
NVC's efforts in energy conservation and emission reduction have achieved considerable business value.
In the middle of the process of industrial transformation, we also hope to have more companies like NVC Lighting, so that our products will be improved in quality, further enhance the world influence of national brands, and make China from lighting appliances. The big country of production is moving towards a strong country. Wang Jinxi said.
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WDM (Wavelength Division Multiplexing) combines two or more optical carrier signals of different wavelengths (carrying various information) at the transmitting end through a multiplexer (also known as a multiplexer), and The technology of transmitting in the same optical fiber coupled to the optical line; at the receiving end, the optical carrier of various wavelengths is separated by a demultiplexer (also called a demultiplexer or demultiplexer), and then the optical carrier is The receiver performs further processing to restore the original signal. This technology of simultaneously transmitting two or more optical signals of different wavelengths in the same optical fiber is called wavelength division multiplexing.
Wavelength division multiplexing is a technology that uses multiple lasers to simultaneously send multiple lasers of different wavelengths on a single fiber. Each signal is transmitted in its unique color band after being modulated by data (text, voice, video, etc.). WDM can greatly increase the capacity of the existing fiber optic infrastructure of telephone companies and other operators. Manufacturers have introduced WDM systems, also called DWDM (Dense Wavelength Division Multiplexing) systems. DWDM can support the simultaneous transmission of more than 150 light waves of different wavelengths, and each light wave can reach a data transmission rate of up to 10Gb/s. This system can provide a data transmission rate of more than 1Tb/s on an optical cable that is thinner than a hair.
Optical communication is a way in which light carries signals for transmission. In the field of optical communications, people are accustomed to naming them by wavelength instead of frequency. Therefore, the so-called Wavelength Division Multiplexing (WDM) is essentially frequency division multiplexing. WDM is a system that carries multiple wavelengths (channels) on one optical fiber, and converts one optical fiber into multiple "virtual" fibers. Of course, each virtual fiber works independently on a different wavelength, which greatly improves the transmission capacity of the optical fiber. . Because of the economy and effectiveness of the WDM system technology, it has become the main means of expanding the capacity of the current optical fiber communication network. As a system concept, wavelength division multiplexing technology usually has three multiplexing methods, namely, wavelength division multiplexing with wavelengths of 1 310 nm and 1 550 nm, sparse wavelength division multiplexing (CWDM, Coarse Wavelength Division Multiplexing) and dense wave Division Multiplexing (DWDM, Dense Wavelength Division Multiplexing).
CWDM, DWDM, FWDM,AAWG WDM
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