Braille learning is essential to communicate and work for visually impaired people(VI).However,a convenient and portable Braille learning device has not been investigated.Herein,a convenient and high-accuracy Braille ...Braille learning is essential to communicate and work for visually impaired people(VI).However,a convenient and portable Braille learning device has not been investigated.Herein,a convenient and high-accuracy Braille learning-enabled tactile sensing system is developed to help VI learning Braille themselves.The tactile sensing system based on tailored micropatterned tactile sensor through sliding mode on Braille,which is bio-inspired by human touching sensation.It achieved a high recognition accuracy of 98.96%for 26 English letters for Braille.The tactile sensor with a tiny size(3 mm×3 mm×2 mm)exhibited a high sensitivity of 0.11 kPa^(-1),which is based on two micro-dome structures with the same dimension as the dot on Braille.The tactile sensing device is fabricated by the tailored sensor,process circuit and microprogrammed control unit to recognize Braille;the sensing device can help VI learning and writing Braille.This work presents a practical theory for VI learning Braille themselves.展开更多
基金supported by the National Natural Science Foundation of China(62201537)the Natural Science Foundation of Shandong Province(ZR2022QF008)+3 种基金the Shandong Province Science and Technology SMES Innovation Ability Improvement Project(2024TSGC1015)the Qingdao Key Technology Breakthrough Project for Industrial Cultivation and Leadership(International and Hong Kong Science and Technology Cooperation)(25-1-1-gjgg-96-hz)the Joint Key Innovation Project of the Yangtze River Delta Science and Technology Innovation Community(2023CSJZN0203)the China Postdoctoral Science Foundation(2025M770666)。
文摘Braille learning is essential to communicate and work for visually impaired people(VI).However,a convenient and portable Braille learning device has not been investigated.Herein,a convenient and high-accuracy Braille learning-enabled tactile sensing system is developed to help VI learning Braille themselves.The tactile sensing system based on tailored micropatterned tactile sensor through sliding mode on Braille,which is bio-inspired by human touching sensation.It achieved a high recognition accuracy of 98.96%for 26 English letters for Braille.The tactile sensor with a tiny size(3 mm×3 mm×2 mm)exhibited a high sensitivity of 0.11 kPa^(-1),which is based on two micro-dome structures with the same dimension as the dot on Braille.The tactile sensing device is fabricated by the tailored sensor,process circuit and microprogrammed control unit to recognize Braille;the sensing device can help VI learning and writing Braille.This work presents a practical theory for VI learning Braille themselves.
