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Security guards / 汽車/運輸工具/自行車

Security guards

In life, we need to take the subway to travel. And a relatively large flow of people underground, often someone hurried subway And when the door is about to close the screen door and re-enter the car ride, so it is likely to cause an accident, it is sandwiched between the door and the PSD Accidents have also occurred. For this reason, this protection warning device subway security guards can cast out before the door is closed, and issued a red stripe ban Stop the passage of sound, the greatest degree of protection of the safety of passengers, for our trip erected a green barrier. Its energy comes from Wind energy, energy saving, green,

University

Zhongyuan University of Technology

Zhongyuan University of Technology
Zhengzhou, China

Zhibin li,
Zhongyuan University of Technology

wenshuai Yang,
Zhongyuan University of Technology

liujie Jing,
Zhongyuan University of Technology