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Participants also visited the LED system laboratory and production workshop of Shanghai Sansi Electronic Engineering Co., Ltd., as well as the Shanghai LED tunnel light standard demonstration project - Shanghai Dalian Road Tunnel LED lighting project and monitoring center high-density LED large screen, for smart traffic LED The application of energy-saving and emission-reducing technologies has a deeper understanding, indicating that the future will jointly create a new situation for China's highway LED applications. 
The “Twelfth Five-Year Plan†energy conservation and emission reduction plan of the State Council puts forward new requirements for LED road applications.
The "Twelfth Five-Year Plan for Energy Saving and Emission Reduction" and the "Twelfth Five-Year Plan for Controlling Greenhouse Gas Emissions" issued by the State Council require that the national unit GDP energy consumption and carbon dioxide emission ratio be at the end of the "Twelfth Five-Year Plan" period. In 2010, it fell by 16% and 17%. In the transportation industry, road transportation accounts for 39.5% of the total transportation energy consumption. It is imperative to promote green and low-carbon transportation.
Since 2011, the Ministry of Transport has set up a special fund for energy conservation and emission reduction of transportation, and used the method of “rewarding by awards†to encourage enterprises and institutions to obtain energy-saving and emission-reduction application results. Now, five batches of 100 batches have been launched. Ministry-level energy conservation and emission reduction demonstration project. This fund focuses on institutional, management and technological innovations to drive the development of green transportation. In the field of transportation, how to more effectively exert the energy-saving effect of LED lighting and display products, so that the heads of highway construction and design units of various provinces and cities agree and accept the LED transformation plan, which has also become a topic of discussion among many experts. Experts believe that LED road lighting and display need to provide multi-level, all-round energy-saving emission reduction programs in order to win market recognition.
Strengthening the development of LED road application standards is imperative
How to strengthen the standardization of the LED industry has become a topic of general concern in the industry. The inconsistency of highway lighting systems is not conducive to ensuring the quality of LED road lighting products. It will bring many problems and problems to the procurement, installation, maintenance and service of products. In this regard, Jiang Haifeng, an associate researcher at the Highway Science Research Institute of the Ministry of Transport, explained in detail the standards of the "Highway LED Lighting" and the tracking test results of the LED lighting demonstration project of the three ministries, which pointed out a new direction for the development of the industry.
The LED lighting demonstration project of the Three-Party Tunnel involves 15 road tunnel LED lighting demonstration projects, which spans 14 provinces and cities, and through rigorous experimental measurements, finally obtains higher-pressure sodium lamps for LED lamps: the average power saving during the daytime is about 73.1%, 72.6%, and 61.4%; fine dimming is more than graded dimming: the average energy saving of 48h is about 32.07%.
The industry standard for "road LED lighting" compiled by the Highway Research Institute of the Ministry of Transport and Shanghai Sansi, and finally the scope, normative references, terminology and definitions, classification and naming, technical requirements of the LED highway lighting industry, Test methods, inspection rules, marking, packaging, transportation and storage have been clearly defined, which provides a strong basis for the standardization and development of the LED highway lighting industry.
Shanghai Sansi LED road application won praise
During the meeting, the experts also shared some classic cases of LED road applications in China since the 1990s. In December 2008, Quanzhou (State) San (Ming) Expressway Caoyuan Tunnel selected LED lighting lamps produced by Shanghai Sansi Company through public bidding. The system has been operating stably and safely for 5 years. Subsequently, they still mainly used Shanghai Sansi Electronic Engineering Co., Ltd. as the lighting renovation manufacturer of Nanhui Expressway. The results of the use show that the project's power consumption is reduced by about 50%. LED lighting fixtures are 40% more energy efficient than high pressure sodium lighting. Among the 15 demonstration tunnel LED lighting projects of the three ministries (NDRC, Ministry of Construction, and Ministry of Communications), the lighting project of the road section passed the first acceptance. In 2010, when the Xiamen-Xiamen Expressway was rebuilt, the stability and reliability of the gantry-type variable information board provided by Shanghai Sansi 10 years ago without any faults in 10 years of use was greatly appreciated.
The LED lighting system energy-saving renovation project of Dalian Road Tunnel in Shanghai was also deeply impressed by the participants. Compared with traditional lamps, LED lighting fixtures have the advantages of energy saving, long life, good display, good orientation and easy dimming. The comparison of various indicators shows that the illuminance maintenance value of the LED is higher than that of the original fluorescent lamp, and the overall light environment performs well. Calculated according to the electricity price of 0.93 yuan / kWh, after the transformation, LED power consumption is only 40% of the original fluorescent lamp power consumption, saving energy of 587,000 degrees per year and saving electricity costs of 546,000 yuan. 
Participants will observe the lighting scene of Dalian Road Tunnel in Shanghai
The Hebei Provincial Transportation Planning and Design Institute co-owners, Shanghai Sansi and Huatong Yuanhang set up a variable information sign solar power supply research group to demonstrate and verify the variable information sign solar power supply system solution, and explore solar energy sources in highway traffic LED applications. Provides ideas for reference.
Implementation and operation of Shenda Express LED variable information sign system. Shanghai Sansi provides LED variable information sign display system in the form of 81 gantry, F-frame and T-shaped frame on Shenda Expressway. Its function is reasonable in design, safe and stable in use, with "high continuous reading, reasonable viewing angle; display color is mainly red, green and yellow; display brightness is automatically adjustable; all-weather work, complex environmental conditions; remote control, intelligent detection. Security Real-time, accuracy, and reliability have reached a certain level." "It has been running for nearly ten years, has withstood the erosion of various bad weather, the equipment function is stable, the operating state is good, and it will continue to operate to ensure Shen Da. High speed normal traffic."
At the meeting, Shanghai Sansi personnel explained the company's LED lighting system and LED variable information logo, monitoring center high pixel density LED full color display large screen, "Tianyan" system testing service platform new technology and new products. “Shanghai Sansi is oriented to the needs of usersâ€. Therefore, in terms of smart transportation, according to the requirements of customers in terms of energy saving, lighting and light quality, reliability, maintainability, operational intelligence, and intelligent transportation, Solid light efficiency design, heat dissipation technology and lamp structure, drive technology, related materials research, optical design technology, intelligent lighting control technology field have made solid and in-depth research. Since the beginning of China's highway LED lighting construction in 2007, Sansi has completed more than 100 highway LED lighting projects, and more than 300 tunnel projects have been widely recognized by the industry.
Over the years, Shanghai Sansi has completed more than 1,000 LED variable information sign projects in 28 provinces, municipalities and autonomous regions in China, providing 15,000 sets of equipment. The energy-saving products developed in recent years have been successfully applied. Take the expressway project as an example: an energy-saving gantry-type variable information sign with an area of ​​1m×10m and a dot spacing of 31.25mm, the power saving rate is as high as 80%. It also saves a significant amount of disposable cable purchases. The energy-saving high-pixel-density LED display developed by Sansi has light weight and no seams; unique grayscale processing, fine and flicker-free picture, high-speed picture without smear; distributed power supply is more energy efficient; dual backup signal path and power supply are more Reliable; touch, somatosensory intelligent control, realize group network synchronization control; carrier technology, instead of plug-in flat line transmission, P1.66, P2.0, P2.5 and P2.75 high pixel density screen have been applied The traffic monitoring center of highway operation management has been approved by users.
Shanghai Sansi, which has become the industry benchmark, deeply feels that he is shouldering the burden and not scorning. He has taken a step forward in exploring the energy-saving potential of LED, and has played an exemplary role in energy-saving and emission reduction of LED traffic applications. At the same time, he participated in the promotion of LED industry. The formulation and implementation of standardization regulates the industry. At present, the “Intelligent Control Integrated System†has been developed, and the “Intelligent Lighting Monitoring System†demonstrated by the system laboratory is a testing ground.
LED highway application prospects are brilliant
As China Communications and Communication Information Center and Beijing Jiaoke Survey and Design Institute have summarized in their speeches, energy saving and emission reduction is an important national policy in China for a long time now and in the future. With the development of LED chip technology, the light efficiency is continuously improved and the cost is increased. Gradually, the temperature rise and light decay problems are gradually solved, and LED lighting will be quickly promoted and applied. The various types of highway LED variable information signs are indispensable and irreplaceable important information release equipment in the traffic information development industry chain. With the continuous implementation of the "Highway Monitoring Technical Requirements", with the intelligent transportation and traffic informationization, The promotion of the service-oriented concept will surely usher in a better tomorrow.
It is reported that the special seminar on energy saving and emission reduction technologies and standards for traffic engineering is the first time in China. This is of great significance for promoting the promotion and application of LED technology in China's traffic engineering and implementing energy conservation and emission reduction in the transportation industry.
(This article is based on Shanghai Sansi submission) 
Promote smart transportation Shanghai Sansi LED road application won praise
On December 6th and 7th, the “2013 Smart Traffic LED Energy Saving and Emission Reduction Technology and Standards Seminar†was successfully held in Shanghai. A total of 10 experts from the relevant leaders of the Ministry of Communications, the highway construction and design department and excellent manufacturers gave speeches. The 120 leaders and experts attending the conference will further promote LED application technology in the future national road lighting and variable signal display fields. Level discussion.