Abstract
Braille points are characters for visually handicapped persons. However, learning Braille points requires great efforts. This paper is a study on the development of a tactile sensor system for reading Braille points. The sensor is a tactile sensor using a PVDF film as the sensory receptor and is slid over the Braille points with a constant space. Furthermore, the signal processing for distinguishing the characters regardless of the rubbing speed is proposed. The obtained results show that the sensor with the proposed signal processing can recognize the characteristics appropriately.
