Li Wenyu: LED five major trends in the development of rail transit lighting

Analysis of LED in rail transit

Operation structure of urban rail transit in China

By the end of 2014, 22 cities nationwide total of urban rail transit line length of 3173 km. Among them, the subway 2365 kilometers, accounting for 75%; light rail of 239 km, accounting for about 8%; monorail of 89 km, accounting for about 3%; modern tram for 141 kilometers, accounting for about 4%; maglev traffic of 30 kilometers, accounting for 1%; city fast track of 308 km, accounting for.

Requirements for rail transit lighting

At present, most of the types of lighting used in rail transit are fluorescent lamp, metal halide lamp and high pressure sodium lamp. A wide variety of lamps, power, not only convenient procurement and maintenance, but also energy saving and environmental protection, and the following problems:

The bare light, glare hazard; the illumination is low, there are differences between stations, illumination uniformity is not enough; the lighting light small proportion; the used lighting appliances are mostly non energy efficient products, large energy consumption, high operating costs.

Energy consumption of rail transit lighting

Is the city rail transportation hub, rail transit lighting system for electric power system about metro overall consumption of about 13%, the subway lighting in China the average energy consumption in 26W/ square meters, far higher than the national standard (200lx lighting standards, energy consumption value to control under the 6 W/ square meters). The energy consumption problem of rail transit lighting is becoming more and more serious, and the requirement of lighting energy saving is more and more high.

Application of LED in rail transit

LED business opportunities

Compared with the traditional lighting, LED has many advantages, such as high energy saving, green environmental protection, strong earthquake resistance, strong stability and so on.

Because of the high stability coefficient and seismic resistance of the lighting, the energy consumption is high. LED is very suitable for the field of rail transportation.

Distribution of rail transit lighting applications

There are many kinds of LED lighting products in railway transportation, which are mainly embodied in the following aspects: the indoor lighting of the car, the external lamp of the car, the public station of the station and the lighting of the platform and entrance.

Application field:

LED energy-saving lighting demonstration project case

In July 2015, Sanyuanli to Guangzhou section of the original Pazhou metro line two (excluding Xiaogang, Chigang Station) LED energy-saving lighting demonstration project has been completed, 14 subway stations in the public area of general lighting system were dismantled 8790 sets of fluorescent lamps, LED lamps installed 7527 sets, the total number of lamps is reduced by 14.4%, a new year is as high as 2 million 450 thousand degrees.

From the economic perspective, lighting effect of similar or even better at the same illumination, the LED lamp, compared to fluorescent lamp energy saving is about 30%, taking into account the factors of LED yuenchiu long-life fluorescent lamps, a year can save a lot of maintenance cost.

From the aspect of social benefit, the brightness of the LED plane light source is even, the lamp shade is not dark, and the glare will not appear. In addition, LED because of its rich, pure color, easy to create a variety of atmosphere.

Guangzhou metro line two LED energy-saving lighting demonstration project

Development trend of LED in rail transit

Development trend forecast

A trend: with rail transit as well as the development of semiconductor lighting technology to improve the level of city, the range of application of LED in the field of rail transportation will continue to expand, from LED to LED lighting lights, LED display applications. City operators are not only concerned about the safety of rail traffic LED products, the basic functionality of the product's comfort, the scene, the design and decorative needs will continue to improve.

Two: with the trend after the national introduction of "Metro lighting LED lighting technology standard", the construction of rail transit LED lighting standard system will continue to perfect the national relevant supporting policies favorable to the environment.

Three trends: with the wisdom of the city to promote the construction of communication, the demand of rail transit, rail transportation LED products continue to intelligent control, can see LED optical communication technology in the field of rail transportation application prospect.

Trend four: over the next few years, with the city to speed up the process, improve the permeability of LED, focusing on the city subway, trams and other LED lighting renovation project will usher in the climax, the application of LED products to the two or three line of the city in depth.

Trend five: because of the complexity, rail traffic engineering design system and the closed, the city rail transit operators are more inclined to adopt LED rail traffic overall application solutions, rather than individual product procurement.

Strategic layout of enterprises

The general idea of strategic layout: the layout in advance, according to local conditions, tailored.

According to the previous analysis, the application of LED in Metro Rail promising, broad prospects for development, is a new blue ocean market segments LED. And rail transportation as an important window of the external display of the city image, but also the best image of LED production enterprises to promote the brand to promote the excellent platform.

Whether it is LED or traditional lighting companies, should seize the opportunity to develop, as soon as possible in the application of LED rail transport into the future strategic layout, but not blind development. Based on this, the general idea of strategic layout: the layout in advance, according to local conditions.

Ahead of the layout: grasp the process of urbanization in China, the development trend of China's rail transportation, strategic layout planning in advance, to seize the development opportunities.

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