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SVIM / visual impairment aids


Once we went swimming, and saw a blind man walking in the water carefully, worrying about bumping into other swimmers. This is why we design SVIM.

Two main problems the blind encounter during swimming:
1. They can’t ascertain the boundary of the pool, so they often bump into the wall.
2. They can’t judge the direction in the pool. This causes them to deviate.

SVIM reminds the user when he deviates or gets near the wall. We adopt bone conduction technology on SVIM, enabling the user to hear the surrounding simultaneously. PPG wafer detects the user’s heartbeat, and notifies lifeguards when urgency occurs.


National Cheng Kung University

National Cheng Kung University
Tainan, Taiwan

Ze En Chien,
National Cheng Kung University

Nien-Pu Lin,
National Cheng Kung University

Tzu-Hsuan Hung,
National Cheng Kung University

Tong Hsieh,
National Cheng Kung University