Ultrasonic Bracelet Helps Blind People Navigate From: Medical Design Technology - 11/19/2015 Based on the resonance location system (echo) used by bats and dolphins to navigate, Marco Antonio Trujillo Tejeda and Cuauhtli Padilla Arias, mechatronic engineers from the Tec de Monterrey in Mexico, devised a bracelet that makes mobility simpler and safer for the blind. Sunu band bracelet emits high-frequency sound waves (30 pulses per second) that bounce after hitting an object and are recorded by a proximity sensor that calculates the distance, which translates into vibrations directly into the wearer's wrist; as the person get closer to the objects, the pulses will be more frequent. Read the entire article at: http://www.mdtmag.com/news/2015/11/ultrasonic-bracelet-helps-blind-people-navigate Links: Entrepreneurs create bracelet that uses an ultrasonic system to help blind people navigate http://www.alphagalileo.org/ViewItem.aspx?ItemId=158651&CultureCode=en The Mexican Innovator of the Year recommends promoting multi- disciplinary entrepreneurship http://www.centrodeinnovacionbbva.com/en/news/mexican-innovator-year-recommends-promoting-multi-disciplinary-entrepreneurship Related: Wearable Clip Helps the Blind Navigate with Ultrasound http://www.mdtmag.com/video/2015/10/wearable-clip-helps-blind-navigate-ultrasound The Navbelt - A computerized Travel Aid for the Blind Based on Mobile Robotics Technology http://www-personal.umich.edu/~johannb/Papers/Paper45/Paper45.html Discrete Distance and Water Pit Indicator using AVR ATmega8 in Electronic Travel Aid for Blind http://www.sersc.org/journals/IJDRBC/vol2/1.pdf The Miniguide mobility aid http://www.gdp-research.com.au/minig_1.htm Past Electronic Travel Aids (Japanese) http://www.ne.jp/asahi/michiko/visionrehab/past_ETAs New Developments in Mobility and Orientation Aids for the Blind http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.476.159&rep=rep1&type=pdf