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Shaking Metro Coin / Shaking Metro Coin

Shaking Metro Coin

A lot of people always listen to music, play phone, read a newspaper or sleep in the subway, therefore, they always missed the outbound time .Or when they outbounded, couldn't find the subway coin, and caused some trouble. This is called "sharking metro coin ",just like ring, wearing in hand, don't worry could not find the subway coins, when arrive theb station, underground currency would shark and remind you.It’s time to outbound.

University

Jiangxi University of Finance and Economics

Jiangxi University of Finance and Economics
Nangchang, China

Yongshi Liu,
Jiangxi University of Finance and Economics

Bingcong Zhao,
Jiangxi University of Finance and Economics

Junbin Zou,
Jiangxi University of Finance and Economics

Weiwen Xiong,
Jiangxi University of Finance and Economics