Ultrasound technology used to guide the blind

At the Centre for Research and Advanced Studies in Guadalajara, Mexico, researchers have developed special lenses for the blind.
The idea is to turn traditional glasses into a navigation device to allow users to freely move from a specific point while avoiding both static and moving obstacles. It uses ultrasound technology, sound sensors, GPS guides and an artificial voice to guide the user.
Similar "smart" glasses have already been developed, but what sets these Mexican-made lenses apart is t…
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