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OKey / assistive device for keys

OKey
OKey

~~~~( Oh, this is the right key! )~~~~How does that happen? Well, a big round piece containing a button battery should adhered on the door near the lock. When the small round piece on the key gets near to thelock, the big piece will transfer electrical signal and power to the small piece by a physical phenomenon called electromagnetic resonance; then the small piece will glow.

University

School of Manufacturing Science and Engineering, Sichuan University

School of Manufacturing Science and Engineering, Sichuan University
Chengdu, China

Zhengkui Li,
School of fine arts, Sichuan University

Zhonghe / Wen,
School of Manufacturing Science and Engineering, Sichuan University

Fan / Li,
School of Manufacturing Science and Engineering, Sichuan University

Hongyi / Chen,
School of Manufacturing Science and Engineering, Sichuan University