Take the lead in research and development of cold light film traffic sign in China

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Take the lead in research and development of cold light film traffic sign in China

In order to further improve the traffic safety of the road at night and reduce the potential safety hazards, recently, the EL cold light flashing sign board was successfully installed and tested in the Jinfu branch line of Xiqing District, Tianjin, where the road facility maintenance is located, to explore the construction and maintenance mode of "smart road".

"EL cold light sheet luminous and flashing sign" of Xiqing pilot project

At present, this scientific and technological research and development achievement has obtained the national utility model patent, and began to prepare the project application. During this period, the R & D team adopted the "intelligent luminous flashing sign" in the R & D process. The so-called "intelligent luminous flashing sign" is because it has the function of self luminous and dynamic flashing. The cold light sheet material mainly used has many advantages, such as ultra-thin, extremely light weight, low electrode consumption, high photoelectric conversion efficiency, earthquake resistance, compression resistance, impact resistance, pure light color and continuous variable brightness. Therefore, after using the cold light sheet and solar energy, we completed the photoelectric conversion process, and then used the time controller to strictly control its luminous time, which not only realized the application of the cold light sheet technology to the luminous part of the road traffic sign, but also realized the application of the surface light source technology to the luminous part of the road traffic sign, creating a new mode of luminous and reflective sign.

30 flashes in one minute, and drivers and pedestrians 300 meters away can know the "road conditions". Recently, this new type of cold light traffic sign board has been "on duty" in Jingfu branch line, Xiqing District, Tianjin.

Near the intersection of Jingfu branch line and Jinjing road in Xiqing District, the reporter saw this new type of traffic sign board, which has no difference from the traditional traffic sign board in appearance, but the two patterns on it keep flashing. "We have attached a cold light sheet under the reflective film of the original reflective sign, which is only 0.5mm thin." Zhao Lin, head of the municipal highway maintenance Institute, told reporters. Traditional traffic signs mainly rely on the reflection of car lights and street lights. Drivers can not quickly recognize the reflection type of traffic sign information, and it is difficult to fully grasp the road conditions. And the sign board of cold light sheet, whose power comes from solar energy, can light independently. Especially in the rain, snow, haze and other bad weather, it can reach people's eyes faster. Night is also more bright and eye-catching, night vision distance is about 150 meters away from the traditional way, which can play a better safety warning effect.

Zhao Lin said that the municipal road maintenance department of the city explored the "smart road" construction and maintenance mode, improved the traditional traffic signs of ordinary roads, took the lead in the research and development of the successful cold light flashing traffic signs in the country, obtained the national utility model patent, and began to use it in the road maintenance projects of districts and counties. During the year, the city will also put in a batch of cold light shining traffic signs on ordinary roads in suburban counties.