Railway stations are common places for people to travel in their daily life. The safety and stability of these places play a very important role in ensuring social stability and unity and people's safety. Especially during holidays, passenger travel more densely, Flow of traffic at the railway station is larger than usual. Therefore, the security management of the station has become particularly important. When working how to improve security in transportation, we need to extend it beyond video and consider how audio can increase safety for passengers and employees.
 

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