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Basic study on traffic information system using LED traffic lights
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DOI：10.1109/6979.969365.png)
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Vehicle Information and Communication System (VICS) is starting to become practicable. The infrared system of VICS detects vehicles on the road by using optical beacons to control traffic and to supply real-time traffic information. But it needs an enormous budget because the optical beacons must be located on every lane of the road throughout the country. In this paper, we propose a traffic information system using existing LED traffic lights, and focus on its visible rays and power used for traffic control, the number and location of the traffic lights, and the movement toward LED traffic lights. We design the best service area not to interfere with other service areas and analyze its basic performance such as the suitable modulation, required SNR and the amount of receivable information.
Keyword:
LED traffic light
lightwave
optical beacon
traffic information system
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