CN108766126A - One kind being used for blind person's tutoring system - Google Patents
One kind being used for blind person's tutoring system Download PDFInfo
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- CN108766126A CN108766126A CN201810200466.4A CN201810200466A CN108766126A CN 108766126 A CN108766126 A CN 108766126A CN 201810200466 A CN201810200466 A CN 201810200466A CN 108766126 A CN108766126 A CN 108766126A
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- Prior art keywords
- blind person
- singlechip
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- touch
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B21/00—Teaching, or communicating with, the blind, deaf or mute
- G09B21/001—Teaching or communicating with blind persons
- G09B21/007—Teaching or communicating with blind persons using both tactile and audible presentation of the information
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Toys (AREA)
Abstract
The invention discloses one kind being used for blind person's tutoring system, including blind person's touch intelligent plate and Teaching Service terminal, blind person's touch intelligent plate outer surface is provided with touch tablet, the touchpad surface is provided with telescopic rod, blind person's touch intelligent intralamellar part is provided with second singlechip, second singlechip output end end is provided with D/A conversion modules and intelligent control module, the second singlechip input terminal is provided with data reception module, and the D/A conversion modules output end is provided with voice playing module.The present invention controls telescopic rod using control panel by intelligent control module and stretches, blind person student is set to touch aware fonts by finger, blind person is set to may learn more knowledge, and it is not limited solely to " saying ", it can also accomplish " writing ", achieve the effect that enrich one's knowledge, and this system is simple in structure, it is easy to operate, it is safe to use, can be that blind person learns to more advantageous knowledge.
Description
Technical field
The present invention relates to tutoring system fields, more particularly to a kind of to be used for blind person's tutoring system.
Background technology
In existing technical field, there are no a set of tutoring systems for complying fully with blind person's study, so that blind person is existed in this way
It is more difficult in learning process, so that it is confined to because eyes can not see font especially for the child to babble out one's first speech sounds
On " listening " and " saying ", it is unable to reach the writing to word, so that blind person is caused many difficulties in learning process in this way, is unable to reach
Study and utilization to knowledge.Therefore, invention is a kind of necessary to solve the above problems for blind person's tutoring system.
Invention content
The purpose of the present invention is to provide one kind being used for blind person's tutoring system, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：One kind being used for blind person's tutoring system, including blind person touches
Intelligent plate and Teaching Service terminal are touched, blind person's touch intelligent plate outer surface is provided with touch tablet, and the touchpad surface is set
It is equipped with telescopic rod, blind person's touch intelligent intralamellar part is provided with second singlechip, the setting of second singlechip output end end
There are D/A conversion modules and intelligent control module, the second singlechip input terminal to be provided with data reception module, the D/A turns
Mold changing block output end is provided with voice playing module, and the intelligent control module output end is provided with control panel, the teaching
Service terminal is internally provided with first singlechip, and the first singlechip input terminal is provided with speech reception module, and described first
Single-chip microcomputer output is provided with A/D conversion modules and data outputting module.
Preferably, the touch tablet side is provided with loudspeaker and control switchs, and the loudspeaker and control switch are all provided with
It is placed in blind person touch intelligent plate outer surface side, the control switch includes that level setting switches, power control switch, cleaning are opened
It closes and replay switchs.
Preferably, blind person's touch intelligent plate is provided with multiple, and multiple blind person's touch intelligent plates are by wireless
Communication is connect with Teaching Service terminal.
Preferably, the telescopic rod is electrically connected with control panel, and the loudspeaker is electrically connected with voice playing module.
Preferably, blind person's touch intelligent intralamellar part is provided with memory, and the memory and second singlechip are electrical
Connection.
Preferably, the telescopic rod is provided with multiple, and multiple telescopic rods may be contained within touchpad surface, described flexible
Bar is sequentially connected with control panel, and described telescopic rod one end is handled by rounding.
Preferably, the telescopic rod input terminal is provided with Miniature retractable motor, the Miniature retractable input end of motor and control
Panel processed is electrically connected.
Preferably, memory includes Flash memory chip and model AT45DB161D, in the Flash memory chip
Set that there are two the SRAM datas of 512B/528B to cache, second singlechip 5 can be by SPI interface to memory high speed writein data.
Preferably, the first singlechip and the model of second singlechip be ATmega16 and it is built-in have optional difference
Divide the A/D conversion modules of input stage and programmable-gain, the speech reception module includes integrated chip NE5532, the integrated core
The sign-changing amplifier of two-stage high input impedance built in piece NE5532, the data reception module include with data outputting module
Nrf2401 chips, the first singlechip are carried out wireless communication with second singlechip by Nrf2401 chips.
Preferably, the flow of the wireless communication is：First determine whether reiving/transmitting state, in the transmit mode, first singlechip
It is sent to data outputting module 14 after the voice data received is carried out CVSD codings inside 11, and passes through Nrf2401 chips
The Nrf2401 chips being sent in data reception module 8, second singlechip 5 connect data reception module 8 and receive the voice number
According to progress CVSD decodings, then send data to D/A conversion modules 6 later, until all data are sent.
The technique effect and advantage of the present invention：The present invention is by the way that Teaching Service terminal to be worn on lecturer, by blind person
Touch intelligent plate is placed on blind person's student learning school table, and hand is positioned on touch tablet, and lecturer is when imparting knowledge to students, language
Sound receiving module by lecturer what is said or talked about receive, then through A/D module processings, convert analog signals into digital signal,
Then digital signal is passed to blind person's touch intelligent plate, blind person's touch intelligent by data outputting module through wireless communication
Data reception module in plate receives the data of transmission, and D/A conversion modules convert the data of reception, will be digital
Signal is converted to analog signal, and reports out using loudspeaker by voice playing module, is listened for blind person student, Er Qiesuo
The analog signal of conversion is stored in memory simultaneously, is made when blind person student learns, by replaying switch control second
Microcontroller transfers the data of storage out of memory, and then the data transferred are passed through touch tablet and speech play by second singlechip
Module is learnt, and second singlechip can carry out analyzing processing to analog signal, then be utilized by intelligent control module
Control panel controls multiple Miniature retractable motors according to the font of input and works, and drives telescopic rod to carry out using Miniature retractable motor
It is flexible, so that blind person student is touched aware fonts by finger, so that blind person is may learn more knowledge, and not only
It is confined to " saying ", can also accomplish " writing ", achievees the effect that enrich one's knowledge, and this system is simple in structure, it is easy to operate, it uses
Safety can be that blind person learns to more advantageous knowledge.
Description of the drawings
Fig. 1 is blind person's touch intelligent plate structure schematic diagram of the present invention；
Fig. 2 is the tutoring system schematic diagram of the present invention；
Fig. 3 is the circuit diagram of speech reception module in the present invention；
Fig. 4 is the wiring diagram of first singlechip and data reception module in the present invention；
Fig. 5 is the wiring diagram of second singlechip and D/A conversion modules in the present invention；
Fig. 6 is the circuit diagram of D/A conversion modules and loudspeaker in the present invention；
Fig. 7 is the wiring diagram of second singlechip and memory in the present invention；
In figure：1 blind person's touch intelligent plate, 2 Teaching Service terminals, 3 touch tablets, 4 telescopic rods, 5 second singlechips, 6D/A turn
Change the mold block, 7 intelligent control modules, 8 data reception modules, 9 voice playing modules, 10 control panels, 11 first singlechips, 12 languages
Sound receiving module, 13A/D conversion modules, 14 data outputting modules, 15 loudspeakers, 16 control switches.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
According to figure 1 a kind of for blind person's tutoring system, 1 outer surface of blind person's touch intelligent plate is provided with touch
Plate 3,3 surface of the touch tablet are provided with telescopic rod 4, are conducive to stretch, concavo-convex according to font generation, to make blind
When people touches, it straightaway can know that the ways of writing of this word, 3 side of the touch tablet are provided with loudspeaker 15
With control switch 16, is conducive to adjust sound size, when avoiding external noise excessive, influences what voice playing module 9 was sent out
Sound, the loudspeaker 15 and control switch 16 may be contained within 1 outer surface side of blind person's touch intelligent plate, the control switch 16
Level setting switches, power control switch, cleaning switch and replay switch, the telescopic rod 4 are provided with multiple, Duo Gesuo
It states telescopic rod 4 and may be contained within 3 surface of touch tablet, the telescopic rod 4 is sequentially connected with control panel 10,4 one end of the telescopic rod
It is handled by rounding, when advantageously reducing touch, the frictional force between finger and telescopic rod 4 avoids causing to fray to finger.
One kind according to Fig.2, is used for blind person's tutoring system, including blind person's touch intelligent plate 1 and Teaching Service terminal 2,
Blind person's touch intelligent plate 1 is internally provided with second singlechip 5, and 5 output end end of the second singlechip is provided with D/A conversions
Module 6 and intelligent control module 7,5 input terminal of the second singlechip are provided with data reception module 8, the D/A conversion modules
6 output ends are provided with voice playing module 9, and 7 output end of the intelligent control module is provided with control panel 10, the teaching clothes
Business terminal 2 is internally provided with first singlechip 11, and 11 input terminal of the first singlechip is provided with speech reception module 12, described
11 output end of first singlechip is provided with A/D conversion modules 13 and data outputting module 14, and blind person's touch intelligent plate 1 is arranged
Have multiple, multiple blind person's touch intelligent plates 1 are connect with Teaching Service terminal 2 by radio communication, the telescopic rod 4 with
Control panel 10 is electrically connected, and the loudspeaker 15 is electrically connected with voice playing module 9, in blind person's touch intelligent plate 1
Portion is provided with memory, is conducive to store the data that second singlechip 5 receives, can be from memory convenient for blind person student
Interior called data is learnt, and the memory is electrically connected with second singlechip 5, and 4 input terminal of the telescopic rod is provided with micro-
Type telescope motor, the Miniature retractable input end of motor are electrically connected with control panel 10.
Operation principle of the present invention：In use, with Teaching Service terminal 2 is worn on by lecturer, blind person student touches blind person
It touches intelligent plate 1 to be placed on desk, and hand is positioned on touch tablet 3, lecturer is when imparting knowledge to students, speech reception module 12
By lecturer what is said or talked about receive, then through A/D conversion modules 13 handle, convert analog signals into digital signal, then data
Digital signal is passed to blind person's touch intelligent plate 1 by output module 14 through wireless communication, in blind person's touch intelligent plate 1
Data reception module 8 data of transmission are received, D/A conversion modules 6 convert the data of reception, by number believe
Analog signal number is converted to, and is come out using the report of loudspeaker 15 by voice playing module 9, is listened for blind person student, and
It the analog signal converted while being stored in memory, makes when blind person student learns, by replaying switch control the
Two microcontrollers 5 transfer the data of storage out of memory, and then the data transferred are passed through touch tablet 3 and language by second singlechip 5
Sound playing module 9 is learnt, and second singlechip 5 can carry out analyzing processing to analog signal, then pass through intelligent control
Module 7 controls multiple Miniature retractable motors according to the font of input using control panel 10 and works, and utilizes Miniature retractable motor band
Dynamic telescopic rod 4 stretches, and so that blind person student is touched aware fonts by finger, so that blind person is may learn and more know
Know, and be not limited solely to " saying ", can also accomplish " writing ", achieve the effect that enrich one's knowledge, and this system is simple in structure,
It is easy to operate, it is safe to use, can be that blind person learns to more advantageous knowledge.
With reference to figure 3 to Fig. 7, first singlechip 11 and the model of second singlechip 5 are ATmega16, built-in with optional
The A/D conversion modules 13 of differential input stage programmable-gain.Speech reception module 12 includes integrated chip NE5532, built-in two-stage
The sign-changing amplifier of high input impedance amplifies collected faint voice signal, and two stage gains are respectively Av1=-R30/R29
≈ -2.56 ≈ -4.17, Av2=-R36/R32, total maximum gain are Avmax=Av1*Av2 ≈ 10.7.
In addition, data reception module 8 includes Nrf2401 chips with data outputting module 14, and utilize Nrf2401 chips
It is communicated, the output power of the chip can be configured by program, and chip power-consumption is very low, be well suited for being applied to this hair
Wireless communication in bright.The software flow of wireless communication is：First determine whether reiving/transmitting state, in the transmit mode, first singlechip
It is sent to data outputting module 14 after the voice data received is carried out CVSD codings inside 11, and passes through Nrf2401 chips
The Nrf2401 chips being sent in data reception module 8, second singlechip 5 connect data reception module 8 and receive the voice number
According to progress CVSD decodings, then send data to D/A conversion modules 6 later, until all data are sent.D/A moduluss of conversion
Block 6 includes 10 D/A conversion chips and model TLC5615.
In addition, the voice signal amplitude after D/A conversion modules 6 is 0 to 5V, it can be used for earphone and directly listen to, but examine
Consider to use in practice and be put outside loud speaker, therefore increase loudspeaker 15 in the present invention, loudspeaker 15 includes audio-amplifying circuit, should
Audio-amplifying circuit includes OP07 chips and LM386 chips.The circuit gain is 50~200, is continuously adjusted, maximum distortion output work
Rate 325mW, output termination capacitor C5, resistance R4, the frequency characteristic of recoverable loudspeaker prevent high-frequency self-excitation.
In addition, memory includes Flash memory chip and model AT45DB161D, main storage area capacity is
16Mbit, also carries the SRAM data caching of 2 512B/528B, and second singlechip 5 can be by SPI interface to memory high speed
Data are written, which is highly suitable for storing digital audio.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (9)
1. one kind being used for blind person's tutoring system, including blind person's touch intelligent plate (1) and Teaching Service terminal (2), it is characterised in that：
Blind person's touch intelligent plate (1) outer surface is provided with touch tablet (3), and touch tablet (3) surface is provided with telescopic rod (4),
Blind person's touch intelligent plate (1) is internally provided with second singlechip (5), and second singlechip (5) the output end end is provided with
D/A conversion modules (6) and intelligent control module (7), second singlechip (5) input terminal are provided with data reception module (8),
D/A conversion modules (6) output end is provided with voice playing module (9), and intelligent control module (7) output end is provided with
Control panel (10), the Teaching Service terminal (2) are internally provided with first singlechip (11), and the first singlechip (11) is defeated
Enter end and be provided with speech reception module (12), first singlechip (11) output end is provided with A/D conversion modules (13) sum number
According to output module (14).
2. according to claim 1 a kind of for blind person's tutoring system, it is characterised in that：Touch tablet (3) side is set
It is equipped with loudspeaker (15) and control switch (16), the loudspeaker (15) and control switch (16) may be contained within blind person's touch intelligent
Plate (1) outer surface side, the control switch (16) include level setting switches, power control switch, cleaning switch and replay
Switch.
3. according to claim 1 a kind of for blind person's tutoring system, it is characterised in that：Blind person's touch intelligent plate
(1) it is provided with multiple, multiple blind person's touch intelligent plates (1) connect with Teaching Service terminal (2) by radio communication.
4. according to claim 1 a kind of for blind person's tutoring system, it is characterised in that：The telescopic rod (4) and control
Panel (10) is electrically connected, and the loudspeaker (15) is electrically connected with voice playing module (9).
5. according to claim 1 a kind of for blind person's tutoring system, it is characterised in that：Blind person's touch intelligent plate
(1) it is internally provided with memory, the memory is electrically connected with second singlechip (5).
6. according to claim 1 a kind of for blind person's tutoring system, it is characterised in that：The telescopic rod (4) is provided with
Multiple, multiple telescopic rods (4) may be contained within touch tablet (3) surface, and the telescopic rod (4) connects with control panel (10) transmission
It connects, described telescopic rod (4) one end is handled by rounding.
7. according to claim 1 a kind of for blind person's tutoring system, it is characterised in that：Telescopic rod (4) input terminal
It is provided with Miniature retractable motor, the Miniature retractable input end of motor is electrically connected with control panel (10).
8. according to claim 5 a kind of for blind person's tutoring system, it is characterised in that：Memory includes that Flash is deposited
Chip and model AT45DB161D are stored up, the Flash memory chip is built-in, and there are two the SRAM datas of 512B/528B to cache, the
Two microcontrollers (5) can be to memory high speed writein data.
9. according to claim 1 a kind of for blind person's tutoring system, it is characterised in that：The first singlechip (11) with
The model of second singlechip (5) is ATmega16 and the built-in A/D conversions with optional differential input stage and programmable-gain
Module (13), the speech reception module (12) include integrated chip NE5532, and two-stage height built in integrated chip NE5532 is defeated
Enter the sign-changing amplifier of impedance, the data reception module (8) includes Nrf2401 chips, institute with data outputting module (14)
It states first singlechip (11) to carry out wireless communication by Nrf2401 chips with second singlechip (5), the flow of the wireless communication
For：First determine whether reiving/transmitting state, in the transmit mode, first singlechip (11) is internal to carry out CVSD by the voice data received
It is sent to data outputting module (14) after coding, and is sent in data reception module (8) by Nrf2401 chips
Nrf2401 chips, second singlechip (5) connection data reception module (8) simultaneously receive the voice data, carry out CVSD solutions later
Code, then send data to D/A conversion modules (6), until all data are sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200466.4A CN108766126A (en) | 2018-03-12 | 2018-03-12 | One kind being used for blind person's tutoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200466.4A CN108766126A (en) | 2018-03-12 | 2018-03-12 | One kind being used for blind person's tutoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108766126A true CN108766126A (en) | 2018-11-06 |
Family
ID=63980297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200466.4A Pending CN108766126A (en) | 2018-03-12 | 2018-03-12 | One kind being used for blind person's tutoring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108766126A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801535A (en) * | 2019-03-28 | 2019-05-24 | 王乐 | A kind of blind person's character learning system |
| CN113317630A (en) * | 2021-05-20 | 2021-08-31 | 江苏谷德运维信息技术有限公司 | Terminal equipment for intercommunication of big data teaching data |
| CN114038276A (en) * | 2021-11-12 | 2022-02-11 | 江苏大学 | Blind touch learning system and method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073070A (en) * | 1977-04-26 | 1978-02-14 | Boston Jacquelin Vaughan | Coloring book for the blind |
| US20050022108A1 (en) * | 2003-04-18 | 2005-01-27 | International Business Machines Corporation | System and method to enable blind people to have access to information printed on a physical document |
| CN101639823A (en) * | 2009-06-01 | 2010-02-03 | 北京联合大学 | Braille electronic dictionary |
| CN105100346A (en) * | 2015-08-10 | 2015-11-25 | 京东方科技集团股份有限公司 | Terminal, system and method for displaying Braille |
| CN204990821U (en) * | 2015-08-12 | 2016-01-20 | 殷雪梅 | Teaching system is assisted in high school's english listening, speaking, reading and writing based on wireless and cell -phone |
| CN206789126U (en) * | 2017-04-19 | 2017-12-22 | 吕益贤 | A kind of multimedia teaching apparatus |
-
2018
- 2018-03-12 CN CN201810200466.4A patent/CN108766126A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4073070A (en) * | 1977-04-26 | 1978-02-14 | Boston Jacquelin Vaughan | Coloring book for the blind |
| US20050022108A1 (en) * | 2003-04-18 | 2005-01-27 | International Business Machines Corporation | System and method to enable blind people to have access to information printed on a physical document |
| CN101639823A (en) * | 2009-06-01 | 2010-02-03 | 北京联合大学 | Braille electronic dictionary |
| CN105100346A (en) * | 2015-08-10 | 2015-11-25 | 京东方科技集团股份有限公司 | Terminal, system and method for displaying Braille |
| CN204990821U (en) * | 2015-08-12 | 2016-01-20 | 殷雪梅 | Teaching system is assisted in high school's english listening, speaking, reading and writing based on wireless and cell -phone |
| CN206789126U (en) * | 2017-04-19 | 2017-12-22 | 吕益贤 | A kind of multimedia teaching apparatus |
Non-Patent Citations (5)
| Title |
|---|
| 刘海成: "《AVR单片机原理及测控工程应用——基于ATmega16/ATmaga48》", 30 June 2015 * |
| 刘联会: "《通信电路与系统》", 31 October 2014 * |
| 孙锦华: "《现代调制解调技术》", 31 August 2014 * |
| 陈慧琴: "《电子技术及应用》", 31 August 2016 * |
| 陈有卿: "《集成电路巧用妙用300例》", 30 June 1999 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801535A (en) * | 2019-03-28 | 2019-05-24 | 王乐 | A kind of blind person's character learning system |
| CN113317630A (en) * | 2021-05-20 | 2021-08-31 | 江苏谷德运维信息技术有限公司 | Terminal equipment for intercommunication of big data teaching data |
| CN114038276A (en) * | 2021-11-12 | 2022-02-11 | 江苏大学 | Blind touch learning system and method thereof |
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Application publication date: 20181106 |
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