测控技术2024，Vol.43Issue(4)：35-43,49,10.DOI:10.19708/j.ckjs.2024.02.210
用于盲人数字化阅读的指套式全锁止盲文显示装置
Fingertip-Type Fully Locked Braille Display Device for Blind People's Digital Reading
摘要
Abstract
The problem of reading accessibility for blind people has not been well solved due to the visual im-pairment and lack of social attention.In view of he problems of low locking force and high energy consumption of existing Braille display devices,a fingertip-type fully locked Braille display device is developed for blind people's digital reading,and it is simulated and optimized through theoretical derivation and finite element a-nalysis.The Braille dot actuator of this device relies on the crossbeam structure for full locking,which can pro-vide sufficient feedback force for the users and improve the accuracy of Braille dot recognition and reading effi-ciency.The performance test results show that the average upper spring force of the Braille dot actuator is 101.67 mN,the locking force is more than 5 N,and the average refresh frequency is 17.7 Hz,which meets the de-sign requirements.The experimental results show that the average accuracy of Braille dots recognition is 94%,and the subjective evaluation is high.It can be seen that the device can improve the level of blind people's digital reading,and provide a good way for the blind people to read digital text portable.关键词
盲文显示装置/盲人数字化阅读/指套式装置/全锁止功能/电磁驱动Key words
Braille display device/digital reading for the blind people/fingertip device/full locking function/electromagnetic drive分类
机械工程引用本文复制引用
张运杰,陈大鹏,陈旭,方映平,陈庚..用于盲人数字化阅读的指套式全锁止盲文显示装置[J].测控技术,2024,43(4):35-43,49,10.基金项目
国家自然科学基金(62003169) （62003169）
江苏省自然科学基金青年基金(BK20200823) （BK20200823）
江苏省研究生科研与实践创新计划项目(SJCX22_0351,KYCX22_1202,SJCX22_0348) （SJCX22_0351,KYCX22_1202,SJCX22_0348）
