Road lighting energy saving potential. Our country city street line length of 560000 kilometers, about street lamp about 18000000. The annual power consumption is very large, estimated at more than 5500000000 degrees, it also represents an enormous energy saving potential. Intelligent lighting is a better solution.
Light vehicle intelligent road lighting requirements that the opening is bright, light not preheating; high pressure sodium lamp and metal halide lamp does not meet the requirements of LED street lamp is the light source; suitable; but the LED street lamp current need further improvement.
Technological progress. Xenon lamp and the white light LED new car headlight brightness higher, as further have fully replace halogen lamp trend. New car headlights to find and identify targets to reduce dependence on street. A new intelligent automobile headlamp, headlight lighting system, automobile internal infrared visual system and target recognition, the more easily found when driving at night.
Road lighting to brightness standard. Waldram silhouette principle is the road lighting basis: Road brightness decides whether to see distant target, the standard to determine the brightness of road lighting. Note: road lighting standards can not use illumination instead.
Need to re positioning of the street lamp function. The main function of the street lamp will recognise and indication range lights function changes: not to find and identify targets but recognize and indication range, its design and the standard of road lighting should also face big change. The study also found that micro sleep the night 415 kilometer driver (Micro-sleep) time amounted to 6 minutes, micro sleep is one of the main causes of traffic accidents at night.
Another function of street lamp: reducing traffic monotonous and micro sleep.
Effects of light spectrum of road motor vehicles. Some people doubt, which is more conducive to the distant illumination spectrum discovery and identification of target? Answer: color white lighting more high color to identify the target, but to find a target. Because the identification color is eye center area (cone cells) that goal depends more on eye offline visual (columnar cells).
Motor vehicle road lamp metal halide lamp or LED white light illumination to replace high pressure sodium lamp, have certain effect to identify the target, but to find a target.
Taking into account the scattering reflection, the rainy day road fog, high brightness white light illumination acceptance limits.
Street lighting. Street lighting needs both pedestrians and vehicles; and in Europe on the sidewalk for pedestrians; enough illumination environment more than or equal to 0.5. Street lighting not only make the passerby safety but also make people feel safe, the pedestrian is in the habit of lighting and security together, namely, adequate lighting can be: (1) find the obstacle (the ground 2.5mm above); (2) the intention enough distance to nearby passers-by. So, street lighting and vehicle lighting different tasks.
Highway transportation sector energy consumption accounts for about 8% of the total energy consumption of the whole society. Transportation is one of China's energy-saving emission reduction of three key areas. China currently opened nearly 6300 kilometers of highway tunnel, calculated in accordance with the traditional high pressure sodium lamp lighting system, the annual national tunnel lighting costs up to 2759000000 yuan.
The industry level
In 2011, the Ministry of transport issued on the "road transport energy saving and emission reduction" Twelfth Five Year Plan "notice", clearly put forward the popularization and application of energy-saving lighting technology of tunnel.
In 2011, the Ministry of transport and the Ministry of Finance issued "Interim Measures" energy conservation and emission reduction of transportation management of special funds to encourage the use of technology is mature, reliable function specification of energy-saving lighting products in the newly built highway tunnel and tunnel, green lighting engineering tunnel, popularization and application of long life, function reliable emitting two tubes (LED) energy saving lamps.
In 2011, the Ministry of Transport Department of policies and regulations compilation "LED tunnel lighting products application demonstration project implementation rules", and to give financial support to 15 LED tunnel lighting demonstration project.
The transportation industry "Twelfth Five Year Plan" period, accelerate the construction of "three systems", organize and carry out the "two special action", to promote the "ten key projects", that is energy-saving lighting technology, ground source heat pump technology, warm mix asphalt technology, natural gas vehicle use, transport energy-saving projects, green driving and repair engineering, traffic engineering, energy saving and emission reduction of highway construction and project operation, energy-saving emission reduction technology green port construction project.
The national level
Energy saving and emission reduction is the "Twelfth Five Year Plan" of our country an important strategic decision.
2010: the short listed companies bidding, unified bidding to determine three kinds of LED lighting products 28 listed companies and product specifications, agreement procurement price; selected a group of semiconductor lighting products application demonstration projects, including: 15 LED tunnel lighting project; 20 indoor LED lighting application project; 15 LED street lamp application project.
2012: Premier Wen Jiabao chaired a State Council executive meeting to discuss through, "the national basic public service system" 1025 "planning", determined to promote the consumption of energy-saving appliances and other products of policy measures, to arrange 2200000000 yuan to support the promotion of energy-saving lamps and LED lamps.
Status of LED lighting application of tunnel
In accordance with the "specifications for design of ventilation and lighting" (JTJO26.1-1999), length of more than 100 meters of highway tunnel lighting facilities shall be provided. Domestic: first using LED lighting tunnel in Guizhou, pioneered the use of highway tunnel LED lamp. So far, the vast majority of provinces highway |
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