Presentation Information
[17a-M_135-3]Human interface for objects detection behind using hypersonic echo sensors and vibrators
〇Shun Narita1, Sawahata Hirohito1 (1.KOSEN Ibaraki Col.)
Keywords:
Hearing assistive systems
Patients with severe hearing impairment may fail to notice vehicles or obstacles approaching from behind in traffic situations, which can lead to dangerous circumstances. To address this issue, we proposed and prototyped a belt-type assistive system that detects objects behind the user using ultrasonic proximity sensors and conveys their direction via vibrotactile cues delivered to the posterior neck region. The prototype implements two channels corresponding to 45° right-rear and 45° left-rear. In evaluation experiments with six participants, the system achieved a mean correct identification rate of 81.3% for discriminating whether an object was located on the right-rear or left-rear side. With further development toward practical use, the proposed system is expected to contribute to welfare-oriented assistive technology for patients with hearing impairment.