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The cellular phone is a necessity which we can not live without and gives much help. However, if the user send messages or listen to the music etc while walking, the surrounding environment perception ability and accident coping ability decreases apparently and this many cause deaths even. Thus, perception of the danger in advance and inducing safety behavior of the cellular phone user is necessary.
It was designed with the periscope type as the motive which detects movements of the objects and induces the behavior of the user.


Gachon University

Gachon University
Incheon, South Korea


Gachon University

Gachon University
Seochecon-gun, Chungcheongnam-do, South Korea

Jong Gyu Hwang