Exploring the current status and characteristics of LED lighting in subway applications

Current status of subway LED lighting applications

In 2008, the Hong Kong MTR and Jiuzhou Optoelectronics introduced LED light source as the first interior lighting of subway cars in the world, which opened the LED era of subway lighting. In 2011, the relevant state departments issued the "Technical Specifications for LED Lighting for Metro Places", which detailed the procurement specifications for subway LED lighting, and opened the standardization road for subway LED lighting. “Considering the diverse needs of metro lighting, LED is undoubtedly the best choice for metro lighting. It has the unparalleled advantages of traditional lighting in terms of energy saving, stability and durability, and the strong shock resistance of LED is very suitable for subway operation. Environment.” A hydropower management engineer in charge of the Shenzhen Metro Line 2 told the reporter. "In view of the problems existing in the current subway lighting system, LED provides a subway lighting solution with novel structure, long service life, good power saving effect and high reliability." The person in charge said.

Exploring the current status and characteristics of LED lighting in subway applications

The subway LED lighting market has been opened up. It is understood that Shenzhen Metro Line 2 is about 33 kilometers in length, all of which are underground lines, with a total of 29 stations, of which 9 are transfer stations, and the number of LED lamps purchased is about 25,500 sets. The project was built by Shanghai Sansi Technology Development Co., Ltd. The entire lighting system uses dimming control to facilitate different brightness during different working hours to achieve better energy saving and longer life. According to a survey by the reporter, at present, there are about 48 domestic subways, and 28 cities are building subways. In the existing domestic subway network, taking the Shenzhen Metro as an example, in addition to the use of LED lighting in the entire line of Line 2, the rest of the use of traditional lighting, the LED market potential of subway lighting can be described as quite large. In addition, Guangzhou Metro Line 2 Sanyuanli, Railway Station, Yuexiu Park, Memorial Hall, Park Front, Haizhu Square, City Ergong, Jiangnan West, Zhongda, Lujiang, Kecun, Moshasha, Xingangdong, Weizhou A total of 14 stations in the public area lighting system and other fields, will begin to replace energy-saving LED lamps this year, the number of lamps is about 18,000 sets

EMC is "not convinced." However, unlike the large-scale commercial promotion model in Europe and the United States, LED lighting in mainland China is also a tentative project led by the government. The commercialization idea is still unclear, which has caused great impact on the commercialization of domestic LED engineering. Troubled. The EMC energy contract management model has played an important role in large-scale LED projects such as subway lighting in foreign countries. Through the new cooperation mechanism of EMC, the MTRC does not have to bear the project cost in the early stage of the project, and cooperates with the LED enterprise with “zero cost” investment, while the LED enterprise recovers the investment and obtains the energy saving benefits obtained during the project implementation process. profit. As an "imported product", the EMC model has suffered from "water and soil discomfort" in China, and the market promotion situation is difficult to open. An industry insider told reporters: "The reason why the EMC model is difficult to promote in China, in addition to the domestic understanding of it, there are still many institutional obstacles."

Intelligence is not "smart." In the era of LED application, the attributes of lamps are no longer scattered individuals, but a collection of LED lamps into a single lighting system, and then an intelligent management platform to achieve a variety of control modes. “When LED light efficiency reaches the limit of use, the energy-saving effect is no longer the final interest point of LED lighting. In the future, LED lighting competition is more reflected in the intelligent demand.” Dr. Xu Chen, deputy director of Guangdong Standardization Research Institute said, "LEDs determine their future intelligent lighting direction based on their light source characteristics." However, the High-Tech LED Industry Research Institute (GLII) data show that the current domestic LED intelligent lighting penetration rate is less than 2%.

Policy encourages the transformation of subway LED lamps

It is understood that after the national policy subsidies spare no effort to popularize the application of LED lighting in public places and indoor areas, LED lighting products are gradually applied to outdoor lighting, indoor lighting and so on. At present, statistics show that in the first quarter of 2013, the tender for street lamps and tunnel lights in Guangdong Province from January to March 2013 has reached 76,000 baht, compared with 75,000 baht in the whole year. Moreover, Lu Fang, director of the National Development and Reform Commission's Elimination of Incandescent Projects Office, recently pointed out at the China Lighting Forum hosted by the China Lighting Society that in 2013, the number of LED lighting products will reach 30 million, covering the types of tunnel lights, street lights, downlights, Based on the spotlights, a new bulb was added this year.

Exploring the current status and characteristics of LED lighting in subway applications

The Beijing Metro Department plans to complete the renovation of 100,000 LED lights in 2015. According to the relevant person in charge of the department, the energy consumption of the subway continues to grow, and energy conservation and consumption reduction has become an important work content of the Beijing subway department. Since 2005, the Beijing Subway has invested 8.5 billion yuan in the transformation of more than 70 equipment systems for two subway lines. The data shows that last year, the Beijing Metro implemented LED lighting and energy-saving pilot projects, and replaced nearly 2,000 LED lamps, saving 156,000 kWh annually. This year, Beijing Metro Operation Company will expand the promotion of LED green lighting, and it is expected to replace 20,000 LED lamps, with an estimated annual energy saving of 1.7 million kWh.

Qinshang Optoelectronics won the bid for the amount of 5.68 million LED lighting fixtures in Guangzhou Metro. Qinshang Optoelectronics (002638) announced on the evening of December 19th. On November 21st, the company disclosed the “Prompt Announcement on the Procurement Project of the Guangzhou Metro Demonstration Project of the Cross-Strait Semiconductor Lighting Cooperation Project”. Recently, the company received the “Notice of Winning Bid” issued by the bidding agency Guoyi Tendering Co., Ltd., confirming that the company and Xuming Optoelectronics Co., Ltd. jointly purchased the project for the “Guangzhou Metro Demonstration Project of the Cross-Strait Semiconductor Lighting Cooperation Project” (paragraph 2) The winning bidder, the winning bid price is 5,683,300 yuan.

Zhouming LED lighting products won the bid for Shenzhen Metro Line 3. In recent years, the leading LED company in China----Zhangming Technology Co., Ltd. won the bid for the Tiananmen Square, the Turkmenistan anniversary celebration, the World Expo, the Guangzhou Pazhou Complex, the Asian Games and other major projects. The related lighting projects of Shenzhen Metro Line 3 are showing great vitality in continuous innovation and rapid development.

Metro LED lighting solutions and LED lighting specifications

Metro LED lighting design: LED lights used in subway stations can save a lot of electricity and a lot of copper cables. It also saves a lot of maintenance costs. It also ensures the quality of the lighting. Aiming at the problems existing in the current subway lighting system. It provides a novel structure and low cost. Long service life and good power saving effect. Highly reliable metro lighting solutions.

"Technical Specifications for LED Lamps for Lighting in Metro Places": The National Semiconductor Lighting Engineering R&D and Industry Alliance recently released the "Technical Specification for LED Lamps for Lighting in Metro Places". The technical content of the specification is recommended. The recommended technical specification will guide the design, production and use of LED lighting for subway lighting, and can be used in the pilot demonstration project of semiconductor lighting. The recommended technical specifications include preface, scope of application, normative references, definitions, general regulations, technical requirements, emergency lighting, duty lighting, transition lighting, lighting quality, lighting energy saving, special technical requirements for LED lighting equipment, and operation and maintenance. Detailed regulations have been made for LED lamps for lighting in subways.