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The Study of Energy Saving on LED Highway Tunnel Lighting

Author: ZhuLei
Tutor: MaRongGui
School: Chang'an University
Course: Computer System Architecture
Keywords: highway tunnel lighting LED energy saving PWM information fusion
CLC: TM923.34
Type: Master's thesis
Year: 2011
Downloads: 229
Quote: 1
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Abstract


As the traffic mileage of the highway increases rapidly, and the number of highway tunnel raises at high speed. The cost of the lighting system has been a great burden of the operation department of the highway. Nowadays, the existing energy saving technology on tunnel lighting can not meet the needs of current demand. Thus, the study of new energy saving technology, through adopting advanced electronic and computer technology, can not only save energy, but also can provide a more comfortable driving environment of drivers by improving the quality of tunnel lighting.According to the characteristics of tunnel lighting and the main factors that affect the quality of tunnel lighting, the paper puts forward some energy saving strategies by analyzes the lights and lighting control mode. It is aim at overcoming the defect of existing energy saving technology. The strategies are advanced lighting control mode and energy saving lights. On the basis of advanced electronic technology and control technique, the paper designs the brightness regulator which is based on PWM technique, mainly including EMI filter, power supplier and brightness regulating module with MCU. The paper also constructs the lighting network which is based on CAN-BUS. According to the parameter of the tunnel such as the environment brightness, vehicle flow and average speed, the paper, though adopting multi-sensor information fusion technology, designs advanced lighting control algorithm, therefore realizing the remote and automatic control system of tunnel lighting.Finally, with the example of Huang Shaling tunnel of Shaanxi, the paper makes an evaluation on the economic benefits of the tunnel lighting energy saving and the illuminating effect from the aspect of the investment cost and operating cost. The evaluation indicates that the tunnel lighting energy saving control system can gain not only considerable economic benefits, but also can provide a more comfortable driving environment of drivers. The paper provides useful experience and lessons for the design of tunnel lighting energy saving system.

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