CN214152169U - Braille learning device - Google Patents
Braille learning device Download PDFInfo
- Publication number
- CN214152169U CN214152169U CN202120278873.4U CN202120278873U CN214152169U CN 214152169 U CN214152169 U CN 214152169U CN 202120278873 U CN202120278873 U CN 202120278873U CN 214152169 U CN214152169 U CN 214152169U
- Authority
- CN
- China
- Prior art keywords
- braille
- control system
- embedded control
- braille learning
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electrically Operated Instructional Devices (AREA)
Abstract
The utility model discloses a braille learning device, which comprises an embedded control system, a voice input unit, a voice playing unit and a braille learning board; the voice input unit is connected with the embedded control system and sends the collected voice information to the embedded control system; the embedded control system is connected with the Braille learning board, converts the received voice information into text information and converts the text information into Braille information, and controls the Braille learning board to display Braille through the liftable salient points according to the Braille information; the embedded control system is connected with the voice playing unit and controls the voice playing unit to broadcast the braille displayed by the braille learning board. The utility model discloses can assist the sight barrier personage faster and more efficient study braille, just can realize a large amount of study such as chinese characters under the condition that does not use a large amount of braille boards, save the use quantity of braille board in the braille learning process, reduce the cost of braille study.
Description
Technical Field
The utility model relates to a braille learning technical field, in particular to braille learning device
Background
According to the data display of the world health organization authority, the number of the visual handicapped people all over the world is more than 1.5 hundred million, wherein the number of the blind people reaches 4500 ten thousand, the blind people are increased at an astonishing speed, and the average time is only 5 seconds. The population of China is huge, about 7551.2 million people with visual impairment exist in China according to data published by official websites of the Chinese blind person association, wherein the number of the blind persons is about 824.8 million people, about 6727.4 million people with low vision account for about 0.005 percent of the population of the nation, the population is the first in the world, and the population is a large group which is not negligible among disabled people.
According to research and development, on the one hand, devices for assisting visually impaired people in learning braille are rarely available on the market, and the related braille display technology has not been further developed. On the other hand, for the teaching of the braille, a relatively efficient solution is not provided at home and abroad, and the braille teaching method is usually only used for teaching the blind to learn the braille through a traditional braille board. Because the teaching needs a specially-assigned person to perform one-to-one auxiliary teaching beside the blind, and because the utilization rate of the traditional Braille board is low, a plurality of Braille boards need to be purchased when the teaching is actually performed, the Braille learning cost of the blind is greatly increased, most blind people cannot normally participate in the learning easily, and the expected teaching effect cannot be achieved. Therefore, the Braille learning machine which can be repeatedly used, can be networked, is easy to be controlled by the blind independently and can be linked with the teacher is urgent.
At present, some braille learning machines are also available, but the braille learning machines generally aim at some basic learning, including the learning of braille letters, numbers, initials, finals and the like, specifically, braille keys of the braille letters, the numbers, the initials and the finals are arranged on the learning machine, and after the corresponding braille keys are pressed, the learning machine plays the corresponding braille through voice.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming with not enough, provide a braille learning device, this braille learning device can assist the sight barrier personage faster and more efficient study braille, just can realize a large amount of study such as chinese characters under the condition that does not use a large amount of braille boards, has saved the use quantity of braille board in the braille learning process, has reduced the cost of braille study.
The purpose of the utility model is realized through the following technical scheme: a Braille learning device comprises an embedded control system, a voice input unit, a voice playing unit and a Braille learning board;
the voice input unit is connected with the embedded control system and is used for sending the collected voice information to the embedded control system;
the embedded control system is connected with the Braille learning board, is used for converting the received voice information into text information and converting the text information into Braille information, and is used for controlling the Braille learning board to display Braille through the liftable salient points according to the Braille information;
the embedded control system is connected with the voice playing unit and controls the voice playing unit to broadcast the content corresponding to the braille displayed by the braille learning board.
Preferably, the embedded system comprises a raspberry pi and a singlechip connected with the raspberry pi; the voice input unit and the voice playing unit are connected with the raspberry group, and the Braille learning board is connected with the single chip microcomputer.
Furthermore, the power supply device comprises an input power supply, a first power supply voltage conversion circuit and a second power supply voltage conversion circuit which are sequentially connected, wherein the first power supply voltage conversion circuit converts 12V voltage output by the input power supply into 5V voltage to supply power for the raspberry group; the second power voltage conversion circuit converts the 5V voltage into the 3.3V voltage to supply power for the singlechip.
Preferably, the Braille learning board comprises at least 3 groups of Braille salient points, and each group of Braille salient points comprises 6 liftable salient points; the lifting convex points are respectively arranged on the lifting control mechanisms, and are controlled by the lifting control mechanisms to ascend and extend out of the machine shell on which the Braille learning board is arranged or descend and retract into the machine shell on which the Braille learning board is arranged;
each lifting control mechanism is respectively connected with an embedded control system, and the working state of the lifting control mechanism is controlled by the embedded control system.
Furthermore, the lifting salient point comprises a nut keycap, a nut, a bolt and a bolt fixer; the casing on which the Braille learning board is installed is provided with a lifting channel for installing each lifting convex point;
the lifting control mechanism comprises a motor and a motor driver, and the motor is connected with the embedded control system through the motor driver;
the nut is arranged inside the nut keycap, and the nut keycap is sleeved on the bolt through the nut; the bolt is fixedly arranged on the bolt fixer, the bolt fixer is sleeved on an output shaft of the motor, and the bolt fixer is driven to rotate by the motor so as to drive the bolt to rotate;
the outer wall of the nut keycap is provided with a protruding part along the length direction of the lifting channel, and when the lifting salient points are arranged in the lifting channel, the protruding part of the nut keycap is positioned in the groove in the inner wall of the lifting channel.
Furthermore, a plurality of protruding parts are arranged on the outer wall of the nut keycap along the length direction of the lifting channel, the protruding parts are arranged around the circumferential direction of the nut keycap, and when the lifting salient points are arranged in the lifting channel, the protruding parts of the nut keycap are positioned in grooves on the inner wall of the lifting channel.
Preferably, the system also comprises a user terminal;
the user terminal is directly connected with the embedded control systems in one or more Braille learning devices through the wireless communication unit, or the user terminal is connected with the server through the communication unit and is connected with the embedded control systems in one or more Braille learning devices through the server.
Preferably, the system also comprises a function selection key, a recording key, a forward switching key, a backward switching key and a collection key which are connected with the embedded control system.
Preferably, one end of the function selection key, the recording key, the forward switching key, the backward switching key and the collection key is connected with the positive terminal of the direct current power supply through pull-up resistors respectively, and is correspondingly connected with each IO port of the embedded control system respectively, and the other end of the function selection key, the recording key, the forward switching key, the backward switching key and the collection key are grounded respectively.
Preferably, the voice input unit is a microphone, and the voice playing unit is a loudspeaker or a sound box.
The utility model discloses for prior art have following advantage and effect:
(1) the utility model discloses braille learning device, including embedded control system, voice input unit, voice play unit and braille learning board; the voice input unit is connected with the embedded control system and sends the collected voice information to the embedded control system; the embedded control system is connected with the Braille learning board, converts the received voice information into text information and converts the text information into Braille information, and controls the Braille learning board to display Braille through the liftable salient points according to the Braille information; the embedded control system is connected with the voice playing unit and controls the voice playing unit to broadcast the content corresponding to the braille displayed by the braille learning board, such as Chinese characters, English, numbers, letters and the like. The utility model discloses in the braille learning device, the learner inputs voice information to embedded control system through the speech playback unit, converts text message to by embedded control system, and to text message, embedded control system can convert it to braille information, then shows through the liftable bump in the braille learning board, and based on this, the learner can teach study and self-study etc. through the braille learning device can assist the sight barrier personage faster and more efficient study braille. In addition, the embedded control system can display different Braille English, numbers, initials and finals through the liftable salient points in the Braille learning board, so that Braille is formed, a large number of Braille boards are not needed, a large amount of learning of Chinese characters and the like can be realized under the condition of not using a large number of Braille boards, the using number of the Braille boards in the Braille learning process is saved, and the Braille learning cost is reduced.
(2) The utility model discloses in the braille learning device, including user terminal, wherein user terminal can be through the embedded control system in wireless communication unit direct connection one or more braille learning devices, perhaps user terminal passes through communication unit and connects the server, connects the embedded control system in one or more braille learning devices by the server; when the user terminal and the embedded control system are in the connection relation of the user terminal and the embedded control system, short-range communication can be achieved, the user terminal can be a teacher, and under the condition, the teacher can send teaching contents to a certain area range through the user terminal, for example, in a Braille learning device of students in the same classroom, and traditional one-to-many teaching is achieved. When the user terminal and the embedded control system are in the connection relation of the latter, a teacher uploads relevant Braille teaching contents to the server through the user terminal, the teacher user terminal and the information interaction of the embedded control systems in the Braille learning devices are all transferred to the cloud server, the teacher accesses the server through the user terminal to obtain the relevant teaching contents and uniformly controls the multiple learning machines to display Braille, so that one-to-multiple teaching is realized, the Braille vocabulary teaching efficiency is improved, the teaching cost is reduced, and a good teaching effect is achieved; in addition, remote teaching can be realized, and the learner can realize teaching at any place as long as the embedded control system in the Braille learning device can be accessed to the network.
(3) The utility model discloses among the braille learning device, the braille learning board includes 3 at least group's braille bumps, and it has 2 rows of 3 liftable bumps altogether to correspond on every group braille bump, based on this kind of structure, the utility model discloses braille learning board can show a braille chinese character at least, also can set up the quantity of braille board according to actual demand to can show more braille. In addition, in the utility model, each lifting convex point comprises a nut keycap, a nut, a bolt and a bolt fixer; the nut keycap with the liftable salient points is arranged in the lifting channel through the upper protruding part, the bolt is fixed on the bolt fixer, when the motor provides torque for the bolt fixer, the bolt is driven to rotate, the longitudinal position of the bolt and the rotation direction of the nut are limited, the nut has longitudinal displacement, and therefore the nut keycap is driven to ascend and descend.
(4) In the braille learning device of the utility model, the embedded control system comprises a raspberry group with each high-speed operation function and a singlechip connected with the raspberry group; speech input unit and speech playback unit connect the raspberry group, and the singlechip is connected to the braille study board, the utility model discloses a raspberry group can realize speech recognition, draw the keyword in the text, the keyword converts the braille to and acquires complicated functions such as data from the public network through the reptile technique, the singlechip through the high performance of connecting, low-cost, low-power consumption can realize the extension of IO port again to realize the control of liftable bump in more peripheral equipment such as braille study board, the utility model discloses based on the embedded control system of raspberry group and singlechip constitution, guaranteed powerful function promptly and realized saving of cost again.
(5) The Braille learning device also comprises a function selection key, a recording key, a forward switching key, a backward switching key and a collection key which are connected with the embedded control system; the function selection key can control the mobile terminal to enter various working modes, such as a teaching mode, an autonomous learning mode, a high-frequency word learning mode and a review word collection mode, and different learning is performed in different working modes; the recording function can be driven through the recording key; the mode of learning high-frequency words and reviewing collected words can be switched to the previous high-frequency words or the Braille word information in the collected words by switching the keys forwards and backwards; in the one-to-many teaching, autonomous learning and high-frequency word learning mode, the system can record the current words and the Braille information thereof through collecting keys. In the invention, different functions can be realized and driven based on the keys, and learning in different modes is realized, so that learners can learn braille more efficiently.
Drawings
Fig. 1 is a schematic structural diagram of the braille learning device of the present invention.
Fig. 2a is a schematic view of the housing structure of the braille learning device of the present invention.
Fig. 2b and 2c are the top view and the bottom view of the case of the braille learning device according to the present invention.
Fig. 3 is a schematic structural diagram of the liftable salient points in the braille learning device of the utility model.
Fig. 4a is a circuit schematic diagram of a raspberry pi switch pin.
FIG. 4b is a schematic circuit diagram of the keys connected to the raspberry pi.
Fig. 5a and 5b are circuit schematic diagrams of a first power supply voltage conversion circuit and a second power supply voltage conversion circuit, respectively.
FIG. 5c is a schematic diagram of a motor driver circuit corresponding to each Braille block on the Braille learning board.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example 1
The present embodiment discloses a braille learning device for assisting visually impaired people to learn braille more quickly and efficiently, as shown in fig. 1, the device includes an embedded control system, a voice input unit, a voice playing unit, and a braille learning board.
In the implementation, the voice input unit is connected with the embedded control system and used for sending the collected voice information to the embedded control system; in this embodiment, the voice input unit may be a microphone connected to the embedded control system, and the user can input a voice signal to the embedded control system through the microphone.
In this embodiment, the embedded control system is connected to the braille learning board, and is configured to convert the received voice information into text information and convert the text information into braille information, and is configured to control the braille learning board to display braille through the liftable protruding points according to the braille information.
In this embodiment, the embedded control system is connected to the voice playing unit, and controls the voice playing unit to broadcast the content corresponding to the braille displayed on the braille learning board. In this embodiment, the voice playing unit may be a device having a voice playing function, such as a speaker or a stereo.
In this embodiment, as shown in fig. 1, the embedded control system includes a raspberry pi and a single chip connected to the raspberry pi; the voice input unit and the voice playing unit are connected with the raspberry pi, the Braille learning board is connected with the single chip microcomputer, the Braille learning board is controlled through the single chip microcomputer, and the single chip microcomputer can be STM32 series, such as STM32F103C8T 6. In this embodiment, the raspberry group can realize the complex functions of voice recognition, extracting keywords from texts, converting the keywords into braille, acquiring data from a public network through a crawler technology, and the like, has high-speed operational capability, and can realize the expansion of an IO port of the raspberry group through a connected single chip microcomputer, so that the lifting control of lifting convex points in more peripheral devices such as a braille learning board in this embodiment is realized.
In this embodiment, as shown in fig. 2a, the braille learning board includes 3 at least groups of braille bumps, and every group braille bump includes 2 rows of 3 total 6 liftable bumps, based on this kind of structure, the utility model discloses braille learning board can show a braille chinese character at least, also can set up the quantity of braille board according to actual demand to can show more braille contents.
In this embodiment, the liftable protruding points are respectively arranged on the liftable control mechanisms, and are controlled by the liftable control mechanisms to ascend to the outside of the housing 6 where the braille learning board is installed or descend to the inside of the housing 6 where the braille learning board is installed, as shown in fig. 2 a. In the present embodiment, as shown in fig. 2a to 2c, the cabinet is composed of three parts, namely, a body, a cover and a bottom plate, and the size of the cabinet is 126mm × 195mm × 83 mm. 18 lift passageways have been designed at the fuselage middle part, have designed an intermediate layer directly over the fuselage, and this intermediate layer is used for placing raspberry group, STM32 control panel and other parts, and there is a rectangle incision that the size is 38mm x 195mm at the intermediate layer top, can be used for installing the OLED display screen, and the fuselage bottom has designed 6 PMKD's bolt hole for PMKD constitutes the enclosure space. In this embodiment, as shown in fig. 2b and 2c, grooves are provided on the inner wall of the hoistway.
In this embodiment, each lifting control mechanism is connected to an embedded control system, and the embedded control system controls the operating state thereof, in this embodiment, each lifting control mechanism includes a motor and a motor driver, the motor is connected to a single chip microcomputer in the embedded control system through the motor driver, the single chip microcomputer controls the motor to rotate forward or backward through the motor driver, the motor is a speed reduction motor, as shown in fig. 5c, the motor driver can use an RZ7889DC two-way motor driving chip, the operating range of the chip is 3-15V, and the chip has overheat, overcurrent, and short circuit protection, and the single chip controls the motor to move forward and backward through two logic inputs, so as to adjust the speed of the motor. In this embodiment, every group braille bump corresponds there has 6 liftable bumps, and in this embodiment, 6 motors are controlled respectively by 6 motor driver chips, realize the lifting control of 6 liftable bumps.
In the present embodiment, as shown in fig. 3, the liftable bumps include nut caps 1, nuts 2, bolts 3, and bolt holders;
in the embodiment, the nut 2 is arranged inside the nut keycap 1, and the nut keycap 1 is sleeved on the bolt 3 through the nut 2; the bolt 3 is fixedly arranged on the bolt fixer, the bolt fixer is sleeved on an output shaft of the motor, and the bolt fixer is driven to rotate by the motor so as to drive the bolt to rotate; wherein, for the convenience of display, in fig. 3, the nut is not yet installed inside the nut key cap 1. The outer wall of the nut keycap 1 is provided with a protruding part 101 along the length direction of the lifting channel, and when the lifting salient points are arranged in the lifting channel, the protruding part of the nut keycap is positioned in the groove on the inner wall of the lifting channel. The outer wall of the nut keycap is provided with a plurality of protruding parts along the length direction of the lifting channel, 4 protruding parts are arranged around the circumference direction of the nut keycap as shown in fig. 3, and when the lifting salient points are arranged in the lifting channel, the protruding parts of the nut keycap are positioned in grooves on the inner wall of the lifting channel.
In this embodiment, nut key cap 1 first half is used for with user's contact, makes its ability discernment braille, has carried out the design of radius angle in its structure to possess more comfortable sense of touch, 4 protruding portions 101 have been designed to the latter half, and 4 protruding portions 101 correspond respectively and are located 4 recesses of lift passageway inner wall, can restrict the nut key cap rotation, make the liftable protruding longitudinal motion that can only carry out along lift passageway inner wall recess.
In this embodiment, the bolt fixer may include a first bolt fixer 4 and a second bolt fixer 5, the first bolt fixer is fixedly sleeved on the bolt, after the bolt is inserted into the through hole of the second bolt fixer 4, the first bolt fixer 4 is sleeved outside the second bolt fixer, and the two are fixed by glue or screw, so as to prevent the bolt from separating from the second bolt fixer in the rotation process. The second bolt fixer 5 is sleeved on the output shaft of the motor through the bottom of the second bolt fixer. When the motor rotates, when providing the moment of torsion for the bolt fixer, drive the bolt rotation, and when the bolt vertical position and nut turned to all by the restriction, the nut had longitudinal displacement to drive the rising and the decline of nut key cap, make on the study board liftable bump can rise and stand out to the casing outside, also can descend and retract inside the casing.
In this embodiment, the system further includes a user terminal. The user terminal is directly connected with the embedded control systems in the one or more Braille learning devices through the wireless communication unit, in the embodiment, the user terminal can be a mobile phone of a teacher, an ipad and the like, the wireless communication unit can be a WIFI unit, the user terminal and the embedded control systems are both connected with the WIFI unit, and the user terminal can simultaneously send teaching contents to the embedded systems in the Braille learning devices of a plurality of student terminals through a Socket protocol.
In the embodiment, the user terminal can also be connected with the server through the communication unit, and the server is connected with the embedded control systems in one or more braille learning devices. A teacher uploads relevant braille teaching contents to a server through a user terminal, all information interaction between the teacher user terminal and an embedded control system in each braille learning device is transferred to a cloud server, and the teacher accesses the server through the user terminal to obtain the relevant teaching contents and uniformly controls a plurality of learning machines to display braille, so that one-to-many teaching is realized.
In this embodiment, the IO port of the raspberry pi in the embedded control system is connected with a function selection key B1, a recording key B2, a forward switch key B3, a backward switch key B4, and a collection key B5. Fig. 4a and 4b show a circuit schematic diagram of the raspberry pi switch pin and the above keys, and GPIO is an IO port of the raspberry pi. The function selection button B1, the record button B2, the forward switch button B3, the backward switch button B4 and the collection button B5 are respectively arranged at both sides of the housing as shown in FIG. 2 a.
In this embodiment, the function selection key B1 may control to enter various working modes, such as a teaching mode, an autonomous learning mode, a learning high-frequency word mode, and a review word collection mode, in this embodiment, one end of the function selection key is connected to a positive terminal of a dc power supply through a pull-up resistor, and is connected to a corresponding IO port of a raspberry pi through a raspberry pi switch pin, and the other end is grounded, where the function selection key is pressed and the corresponding IO port of the raspberry pi receives a low-level signal.
In the embodiment, the recording function can be driven by the recording button B2; in this embodiment, one end of the recording button B2 is connected to the positive terminal of the dc power supply through a pull-up resistor, and is connected to the corresponding IO port of the raspberry pi through the raspberry pi switch pin, and the other end is grounded, wherein when the recording button B2 is pressed, the corresponding IO port of the raspberry pi receives a low level signal, and when the raspberry pi detects the low level signal of the corresponding IO port, the recording function is driven, and the voice information input by the voice input unit, i.e., the microphone, is received.
In this embodiment, one end of the forward switching key B3 and one end of the backward switching key B4 are respectively connected to the positive terminal of the dc power supply through pull-up resistors, and are respectively and correspondingly connected to two corresponding IO ports of the raspberry pi through the raspberry pi switch pin, and the other ends are grounded; in the modes of learning high-frequency words and reviewing collected words, the Braille word information in the previous high-frequency words or collected words to be learned next can be switched by the forward switching key B3 and the backward switching key B4.
In this embodiment, the collection function of the raspberry group can be driven by the collection key B5, one end of the collection key B5 is connected to the positive terminal of the dc power supply through a pull-up resistor, and is connected to the corresponding IO port of the raspberry group through the raspberry group switching pin, the other end is grounded, and the raspberry group can record the current word and the braille information thereof through the collection key B5 in the one-to-many teaching and autonomous learning and learning high-frequency word mode.
In this embodiment, the power supply apparatus further includes a power supply apparatus, where the power supply apparatus includes an input power supply, a first power voltage converting circuit and a second power voltage converting circuit, and as shown in fig. 5a, the first power voltage converting circuit converts a 12V voltage into a 5V voltage; power is supplied to the raspberry pie; as shown in fig. 5b, the second power voltage converting circuit converts the 5V voltage obtained by the first power voltage converting circuit into 3.3V voltage; the input power supply inputs 12V voltage for the power adapter, and after the voltage is respectively and correspondingly converted to 5V and 3.3V through the first power supply voltage conversion circuit and the second power supply voltage conversion circuit, the power is respectively and correspondingly supplied to the raspberry group and the single chip microcomputer.
In the braille learning device, a learner inputs voice information into a raspberry group of an embedded control system through a voice playing unit, the raspberry group of the embedded control system is converted into text information, the text information is obtained by receiving the text information from a user terminal or converting the voice information, the raspberry group of the embedded control system can convert the text information into braille information based on braille programming rules and then sends the braille information to a single chip microcomputer, and the single chip microcomputer correspondingly controls the working state of each motor through each motor driver according to the position of each liftable salient point in each group of braille salient points so as to control each liftable salient point of a braille learning board to move up and down and form corresponding braille. Based on this, the learner can carry out teaching study and self-learning etc. through the utility model discloses the braille learning device can assist the blind personage faster and more efficient study braille. The embedded control system can display different Braille English, numbers, initials and finals through the liftable salient points in the Braille learning board, thereby forming the Braille.
In the braille learning device of the embodiment, the function-based selection button B1 can be controlled to enter various working modes, including a teaching mode, an autonomous learning mode, a high-frequency word learning mode and a review word collection mode, as described above, wherein in the teaching mode, teaching contents issued by a teacher through a user terminal can be learned; in the autonomous learning mode, a learner can record after pressing a recording key to autonomously learn the Braille which the learner wants to learn; the Braille information corresponding to the high-frequency words is pre-stored in the embedded control system in a text format data mode, and Braille learning can be carried out on the high-frequency words when the high-frequency word learning mode is entered; in the teaching mode, the autonomous learning mode and the high-frequency word learning mode, the corresponding learning content can be collected through the collection key, and the collected words can be learned in the review word collection mode. In addition, in the learning process of various modes, the raspberry party can access the public network to obtain paraphrases of corresponding contents (such as Chinese characters, English words, numbers, letters, pinyin and the like) through a crawler technology, and then the voice playing unit is controlled to broadcast the contents corresponding to the braille and the paraphrases thereof, so that the learner can check the correct and wrong results, different learning requirements of the learner are effectively met, and the braille learning efficiency is further improved.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. A Braille learning device is characterized by comprising an embedded control system, a voice input unit, a voice playing unit and a Braille learning board;
the voice input unit is connected with the embedded control system and sends the collected voice information to the embedded control system;
the embedded control system is connected with the Braille learning board, converts the received voice information into text information and converts the text information into Braille information, and controls the Braille learning board to display Braille through the liftable salient points according to the Braille information;
the embedded control system is connected with the voice playing unit and controls the voice playing unit to broadcast the content corresponding to the braille displayed by the braille learning board.
2. A braille learning device according to claim 1, characterized in that the embedded system comprises a raspberry pi and a single chip connected to the raspberry pi; the voice input unit and the voice playing unit are connected with the raspberry group, and the Braille learning board is connected with the single chip microcomputer.
3. The braille learning device of claim 2, characterized by further comprising a power supply device, wherein the power supply device comprises an input power supply, a first power voltage converting circuit and a second power voltage converting circuit which are sequentially connected, and the first power voltage converting circuit converts 12V voltage output by the input power supply into 5V voltage to supply power for the raspberry group; the second power voltage conversion circuit converts the 5V voltage into the 3.3V voltage to supply power for the singlechip.
4. A braille learning device according to claim 1, characterized in that the braille learning board comprises at least 3 groups of braille bumps, each group of braille bumps comprising 6 liftable bumps; the lifting convex points are respectively arranged on the lifting control mechanisms, and are controlled by the lifting control mechanisms to ascend and extend out of the machine shell on which the Braille learning board is arranged or descend and retract into the machine shell on which the Braille learning board is arranged;
each lifting control mechanism is respectively connected with an embedded control system, and the working state of the lifting control mechanism is controlled by the embedded control system.
5. A braille learning device according to claim 4, characterized in that the liftable bumps comprise nut keycaps, nuts, bolts and bolt holders; the casing on which the Braille learning board is installed is provided with a lifting channel for installing each lifting convex point;
the lifting control mechanism comprises a motor and a motor driver, and the motor is connected with the embedded control system through the motor driver;
the nut is arranged inside the nut keycap, and the nut keycap is sleeved on the bolt through the nut; the bolt is fixedly arranged on the bolt fixer, the bolt fixer is sleeved on an output shaft of the motor, and the bolt fixer is driven to rotate by the motor so as to drive the bolt to rotate;
the outer wall of the nut keycap is provided with a protruding part along the length direction of the lifting channel, and when the lifting salient points are arranged in the lifting channel, the protruding part of the nut keycap is positioned in the groove in the inner wall of the lifting channel.
6. A braille learning device according to claim 5, characterized in that the outer wall of the nut key cap is provided with a plurality of protrusions along the length direction of the lifting channel, each protrusion being arranged around the circumference of the nut key cap, and when the liftable protruding points are provided in the lifting channel, each protrusion of the nut key cap is located in each groove of the inner wall of the lifting channel.
7. A braille learning device according to claim 1, characterized by further comprising a user terminal;
the user terminal is directly connected with the embedded control systems in one or more Braille learning devices through the wireless communication unit, or the user terminal is connected with the server through the communication unit and is connected with the embedded control systems in one or more Braille learning devices through the server.
8. A braille learning device according to claim 1, characterized by further comprising a function selection key, a recording key, a forward switch key, a backward switch key and a collection key connected with the embedded control system.
9. The braille learning device according to claim 1, characterized in that one end of the function selection key, the recording key, the forward switch key, the backward switch key and the collection key is connected to a positive terminal of a dc power supply through a pull-up resistor, and is connected to each IO port of the embedded control system correspondingly, and the other end is grounded.
10. A braille learning device according to claim 1, characterized in that the speech input unit is a microphone and the speech playing unit is a loudspeaker or a sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120278873.4U CN214152169U (en) | 2021-02-01 | 2021-02-01 | Braille learning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120278873.4U CN214152169U (en) | 2021-02-01 | 2021-02-01 | Braille learning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214152169U true CN214152169U (en) | 2021-09-07 |
Family
ID=77549339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120278873.4U Active CN214152169U (en) | 2021-02-01 | 2021-02-01 | Braille learning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214152169U (en) |
-
2021
- 2021-02-01 CN CN202120278873.4U patent/CN214152169U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120094257A1 (en) | Remote braille education system and device | |
| CN205264171U (en) | This sign indicating number receiving and dispatching training ware of mole | |
| CN214152169U (en) | Braille learning device | |
| CN112767792A (en) | Braille learning device and working method | |
| CN201255931Y (en) | Learning machine for the blind children | |
| CN209842887U (en) | English teaching aid and teaching auxiliary device | |
| CN106603939A (en) | Teaching central control system | |
| CN210722032U (en) | Braille learning machine for converting plaintext into Braille | |
| CN113327489A (en) | Layered mechanical intelligent braille reader based on machine vision | |
| Gatti et al. | Voice-controlled artificial handspeak system | |
| CN201025562Y (en) | A portable intelligent language learning machine | |
| CN108735049A (en) | Deaf-mute's assistant phonation system and its vocal technique | |
| CN113963603A (en) | Novel blind person electronic book | |
| Ohene-Djan et al. | Mak-Messenger and Finger-Chat, communications technologies to assist in teaching of signed languages to the deaf and hearing | |
| CN206480192U (en) | Political auxiliary electron board of education | |
| CN2159047Y (en) | Intelligent and amusing computer for children learning chinese character and English | |
| CN101639823A (en) | Braille electronic dictionary | |
| US20030171912A1 (en) | Translation apparatus | |
| CN218825881U (en) | Word auxiliary memory device for English learning | |
| CN220509577U (en) | Electronic question-answering equipment for learning disabled people | |
| CN114356026A (en) | Intelligent braille computer | |
| CN208421785U (en) | A kind of wireless device for answering question with double bond disk | |
| CN219476206U (en) | Language learning machine and control system thereof | |
| Sun et al. | A Study of an All-in-One Machine for Braille Learning and Testing | |
| CN113306291B (en) | Intelligent printing method, printing device, printer and intelligent printing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |