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Today, the prevalence of fog and haze, and there are a variety of unexpected situations driving at night. An acceptable WIFI signal holographic projection device is designed on the street lamp,the traffic police department can use the device to issue various reminder information. Drivers can also use their smart phones to alert message to the previous car in unexpected situations.
Nanjing University of Sci. & Tech.
School of Design Art & Media Nanjing University of Science & Technology