[Text / high-tech LED Gan Qin] Recently, Zhonglong traffic related staff told the Gaogong Golden Globe Awards Organizing Committee, the company will compete with the 2015 High-tech Product of the Year Award with the stepless dimming color temperature LED tunnel light. ".
It is understood that the stepless dimming color temperature lamp of this product includes two sets of LED light source modules with different color temperatures. The company defines it as a high color temperature module and a low color temperature module respectively, including two analog dimming modules. For DIM-1, DIM-2. Two sets of LED light source modules with different color temperatures adopt a common negative structure.
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The above staff introduced that DIM-1 can accept 0~5V or 0~10V analog signals and adjust the total output current of the two sets of light source modules to achieve stepless change of brightness from 0% to 100%. DIM-2 can accept the analog signal of 0~5V or 0~10V and adjust the current distribution ratio of the two groups of light source modules. Through the two groups of different color temperature occupancy ratios, the color temperature changes from low to high. By controlling the signal changes of the two interfaces of DIM-1 and DIM-2, the brightness and color temperature of the whole lamp can be changed steplessly.
"This product can meet the needs of color temperature and power infinitely adjustable, with environmental protection technology and comfortable lighting function. Advanced product technology, reliable quality, high cost performance, high market competitiveness, has been successfully applied to multiple tunnel lighting The project is well received by customers," the staff said.
In addition, Zhonglong Transportation's Jiaoyan Tunnel Project in Guizhou Province, which will be completed this year, will also compete for the 2015 Engineering Excellence Award.
The above staff introduced that the tunnel is a pilot project, the lighting system uses intelligent control, and the luminaire can realize the function of stepless dimming color temperature. “This project is the first tunnel project in Guizhou Province to adopt dual-color temperature lamps. If the effect is good, it will lay the foundation for the future use of tunnels with dual-color lamps to promote the development of dual-color lamps.â€
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The system of the project consists of external color temperature and brightness detector, LED color temperature and brightness intelligent stepless control device, single lamp color temperature and brightness controllable LED tunnel light, communication system and PC monitoring and management software.
The system's external color temperature and brightness monitoring device converts the detected tunnel color temperature and brightness signal into a 4-20 mA standard signal and transmits it to the LED brightness intelligent stepless control device, and then converts it into a DC 0~5V DC analog signal. Output (0V of the analog control signal corresponds to the maximum power of the luminaire, 5V corresponds to the minimum power of the luminaire, and the middle is in a reverse linear relationship), to control the voltage control current source on the LED lamp (output current controllable LED drive power).
The color temperature and brightness control system of the project can track and control the color temperature and intensity of the reinforced section or the basic section of the tunnel according to the color temperature and brightness change of the tunnel tunnel. The color temperature and brightness control system can communicate with the central control room. The central control room can set the relevant parameters of the color temperature and brightness control system, including the system clock, to enhance the percentage of the lighting output power.
In addition, the color temperature and brightness control system can perform real-time and fine dimming of the color temperature and brightness in the tunnel hole, and the time interval of the adjacent two dimming operations is not more than 2S, and the brightness dimming level is not less than 256 levels.
"In order to meet the tunnel lighting requirements of the road tunnel LED lighting fixtures and meet the requirements of JTJ026.1-1999, the harmonic current limit of Zhonglong traffic lamps complies with GB17625.1-2003" Electromagnetic compatibility limit harmonic current The emission limit (input current per phase of the equipment is ≤16A) is in compliance with the provisions of GB7000.1. Compared with the design of sodium lamp, it can save more than 50% of the electricity cost." The above staff said.
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