VibroCap: A mobility supporting hat for blind

In this paper, we present the VibroCap, a mobility aiding hat which is designed to detect obstacles and alert the visually impaired user. By using low cost PVDF (Polyvinylidene Fluoride) ultrasonic sensors, hat detects obstacles, which are located across the upper part of the human body and cannot normally be detected by white cane. Depending on the distance of the detected obstacle, visually impaired person is informed by three vibration motors placed on the forehead. The design stages and experimental results of the obstacle detection system are presented.