Dear editor, Due to visual impairment and lack of social attention,the reading problem of the blind has not been well resolved.Many existing Braille reading devices still have many problems and are not accepted by the public.This paper developed a portable Braille reading system based on electrotactile display technology.The proposed system is composed of a six-channel electrotactile stimulator,a flexible electrode array for Braille display and a graphical user interface(GUI)for monitoring and control.Based on the flexibility of the system,two Braille reading strategies have been designed:spatial mode and sequential mode.The system was preliminary tested by six sighted subjects.The results showed that subjects were able to recognize Braille characters with more than 80％accuracy within less than 10 seconds for the initial use.Compared to existing Braille reading systems,this system is portable,wearable and flexible in control.

Ziliang Zhou;Yicheng Yang;Honghai Liu

State Key Laboratory of Mechanical System and Vibration,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Laboratory of Robotics and Systems,Harbin Institute of Technology Shenzhen,Shenzhen,China

自动化学报（英文版）

[1]Ziliang Zhou;Yicheng Yang;Honghai Liu-.A Braille Reading System Based on Electrotactile Display With Flexible Electrode Array)[J].自动化学报（英文版）,2022(04):735-737

Braille,Electrotactile,electrotactile,sighted

Reading,System,Based,Display,With,Flexible,Electrode,Array,Dear,editor, Due,visual,impairment,lack,social,attention,reading,blind,has,not,been,well,resolved,Many,existing,devices,still,have,many,problems,accepted,by,public,This,paper,developed,portable,display,technology,proposed,composed,six,channel,stimulator,flexible,electrode,array,graphical,user,interface,GUI,monitoring,control,flexibility,two,strategies,designed,spatial,mode,sequential,was,preliminary,tested,subjects,results,showed,that,were,recognize,characters,more,than,accuracy,within,less,seconds,initial,Compared,systems,this,wearable

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