CN114495650A - Magnetic traction type blind person reading equipment facing touch screen and reading method thereof - Google Patents
Magnetic traction type blind person reading equipment facing touch screen and reading method thereof Download PDFInfo
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- CN114495650A CN114495650A CN202111638227.5A CN202111638227A CN114495650A CN 114495650 A CN114495650 A CN 114495650A CN 202111638227 A CN202111638227 A CN 202111638227A CN 114495650 A CN114495650 A CN 114495650A
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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
- G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
- G09B21/004—Details of particular tactile cells, e.g. electro-mechanical or mechanical layout
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- 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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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Abstract
The invention discloses a magnetic traction type blind person reading device facing a touch screen and a reading method thereof. The device platform comprises a base, a touch screen, a direct current motor, a solenoid, a mechanical arm and a control circuit. The finger stall includes strong magnet, fixed bolster, braille module, control module, bluetooth module and power module. The direct current motor drives the solenoid to move in the whole area below the touch screen through controlling the mechanical arm. When the Braille device is used, the blind person puts fingers in finger holes formed in the fixed support, and the probe array in the Braille module can present Braille information to the belly of the fingers. Current is introduced into the solenoid to generate attractive force on the strong magnet, and when the solenoid moves, the finger is pulled to move to any position on the touch screen. The method can help the blind to read according to the character typesetting sequence of the virtual page, solves the problem that the blind cannot accurately position on the touch screen, and expands the learning way of the blind.
Description
Technical Field
The invention relates to blind person reading equipment, in particular to magnetic traction type blind person reading equipment facing a touch screen and a reading method thereof.
Background
Traditionally, the blind knows about information such as images and characters mainly through paper materials, such as blind documents for the blind to read. In the case of vision loss, the blind knows very little information relative to normal if the blind is simply reading the blind document. The blind document is made up by printing braille convex points on the book by means of a braille plate, a braille machine and a braille printer. Normally, the braille of each square consists of six points, and the blind can sense the braille by touching the convex points. However, the current blind documents face the problems of high cost, serious paper waste, single function and use and the like.
Nowadays, the application of touch screen technology is very common, and normal people can browse a large amount of digital information such as characters, images and the like through the touch screen. The touch screen has the advantages that data can be updated in real time, and information can be displayed to a user in real time according to the position touched by the user. Unfortunately, however, because the touch screen is a flat, featureless surface, the blind cannot capture digital information such as images and text on a conventional touch screen device.
Disclosure of Invention
Aiming at the problem that the blind person cannot acquire digital information such as images and characters on common touch screen equipment, the invention provides magnetic traction type blind person reading equipment facing a touch screen and a reading method thereof.
In order to solve the above problems, the present invention adopts the following technical solutions.
A magnetic traction type blind person reading device facing a touch screen comprises a mounting table and finger sleeves, wherein the finger sleeves are positioned above the mounting table; the device platform comprises a base, a moving mechanism, a touch screen and a solenoid, wherein the touch screen and the moving mechanism are both arranged on the upper surface of the base, the touch screen is positioned above the moving mechanism, and the solenoid is arranged on the moving mechanism; the finger stall comprises a fixed support, a strong magnet, a Braille module and a control block; the number of the fixing supports is multiple, and the finger holes are formed in the multiple fixing supports; the Braille module is arranged below the fixed bracket; the bottom of the Braille module is provided with a strong magnet which is matched with the solenoid for use; the Braille module is electrically connected with the control block, and the control block is bound on the arm of a user through a binding band.
According to a further technical scheme, the moving mechanism comprises a control circuit, 2 direct current motors and two-degree-of-freedom diamond-shaped mechanical arms; the solenoid is arranged at the common end of the two-degree-of-freedom rhombic mechanical arm, and the other two ends of the two-degree-of-freedom rhombic mechanical arm are respectively connected with output shafts of two direct current motors; the control circuit is electrically connected with the direct current motor and the solenoid respectively.
According to the technical scheme, the Braille module comprises a plurality of probes and a plurality of electromagnetic actuators, and the number of the probes is consistent with that of the electromagnetic actuators; the plurality of electromagnetic actuators are arranged in a square array, and the probe is movably arranged above the electromagnetic actuators.
According to a further technical scheme, the number of the electromagnetic actuators and the number of the probes are 6, and the 6 electromagnetic actuators are arranged in three rows and two columns.
According to a further technical scheme, the distance between two adjacent probes is 2.5 mm.
According to a further technical scheme, the diameter of the probe is 1.5 mm.
In a further technical scheme, a control module and a Bluetooth module are arranged in the control block; the touch screen is in communication connection with the control module, and the output end of the touch screen is electrically connected with the control circuit; the control module is in communication connection with the control circuit through the Bluetooth module, and the output end of the control module is connected with the input end of the Braille module; the control module receives coordinates and character information of a contact position of the strong magnet and the touch screen, which are input by the touch screen, converts the character information into braille information and transmits the braille information to the braille module for display.
The technical scheme is that the device further comprises a gesture detection module, wherein the gesture detection module is arranged above the fixed support and used for detecting the motion gesture of the finger sleeve; the gesture detection module is electrically connected with the control module through a data line.
According to the further technical scheme, a power supply module is further arranged in the control block and respectively supplies power to the attitude detection module, the Braille module, the control module and the Bluetooth module.
A magnetic force traction type blind person reading method facing a touch screen adopts any one of the magnetic force traction type blind person reading devices facing the touch screen, and the using method is as follows:
step one, the blind wears a finger stall, a control block is tied on an arm, and a strong magnet at the lower end of the finger stall is in contact with a touch screen
The control circuit drives the direct current motor to move the two-degree-of-freedom diamond-shaped mechanical arm according to the contact position of the strong magnet and the touch screen, and the position of the solenoid is adjusted to be right below the contact position of the strong magnet and the touch screen; the control circuit supplies power to the solenoid to enable the strong magnet and the solenoid to be attracted together under the condition that the touch screen is clamped between the strong magnet and the solenoid;
thirdly, the control circuit guides the finger stall to the beginning position of the characters through the solenoid according to the typesetting sequence of the characters on the touch screen, and then guides the fingers of the blind to read movably through the finger stall according to the typesetting sequence of the characters on the touch screen; the touch screen detects the position of interaction and the moving speed of the strong magnet on the touch screen in real time, and transmits the detected position information and the moving speed to the control circuit; the control circuit sends the position information and the text information at the position to the control module through the Bluetooth module; the control module converts the received character information into corresponding braille information, the braille information is transmitted to the braille module, the control probe and the electromagnetic brake form corresponding braille information, and the blind reads the braille through the finger touch probe.
Compared with the prior art, the invention has the beneficial effects that:
(1) the reading equipment of the invention well solves the problem that the blind person can not accurately position on the touch screen by using the magnetic traction device, and can guide the blind person to correctly read the characters on the touch screen according to the character typesetting sequence of the virtual page.
(2) The invention can bring good immersion and reality for the blind to read on the touch screen, and has good practical use value
(3) The reading device has the advantages of high popularization degree, portability and small size, and is convenient for the blind to carry and use.
(4) The invention adopts the touch screen device with the data refreshing function as a carrier for the blind to read words, and provides a realization way with revolutionary significance for the blind to read words.
Drawings
FIG. 1 is a state diagram of the use of the present invention;
FIG. 2 is a schematic view of the inventive fixture table configuration;
FIG. 3 is a schematic structural view of a finger cuff of the present invention;
FIG. 4 is a schematic view of a two degree-of-freedom diamond robot arm of the present invention;
FIG. 5 is a schematic structural diagram of a Braille module of the present invention;
FIG. 6 is a schematic diagram of the structure of a probe according to the present invention;
FIG. 7 is a schematic view of the structure of the strong magnet according to the present invention;
fig. 8 is a control flow chart of the present apparatus.
The reference numbers in the figures denote: 1. a control circuit; 2. a direct current motor; 3. a touch screen; 4. a base; 5. the posture detection module 6 and the fixed bracket; 7. strong magnets; 8. a Braille module; 801. a probe; 802. an electromagnetic actuator; 9. a control module; 10. a two-degree-of-freedom diamond-shaped mechanical arm; 11. a support; 12. a Bluetooth module; 13. a power supply module; 14. a data line; 15. a solenoid; 16. a control block;
Detailed Description
The invention is further described with reference to specific embodiments and the accompanying drawings.
Examples
The embodiment provides a magnetic traction type blind person reading device facing a touch screen, which comprises a device table and a finger stall, wherein the finger stall is positioned above the device table, and the finger stall is fixed on an arm of a blind person and used for drawing the blind person to move on the device table for reading, as shown in fig. 1.
As shown in fig. 2, the device stage includes a base 4, a moving mechanism, a touch screen 3, a support 11 and a solenoid 15, and the volume of the whole device stage is about 300mm by 200mm by 80 mm. Wherein, touch-sensitive screen 3 passes through support 11 fixed mounting at the upper surface of base 4, and when the user slided touch-sensitive screen 3, touch-sensitive screen 3's position can not change, can play protection and fixed effect to touch-sensitive screen 3. The moving mechanism is also installed on the upper surface of the base 4 and is located below the touch screen 3. The solenoid 15 is mounted on the moving mechanism for energisation to generate a corresponding magnetic field.
As shown in fig. 4, the moving mechanism includes a control circuit, 2 direct current motors and two-degree-of-freedom diamond-shaped mechanical arms 10, and there are 2 direct current motors 2. The solenoid 15 is made by winding an enameled copper wire on a cylindrical iron core made of DT4C, and is installed at the common end of the two-degree-of-freedom rhombic mechanical arm 10, and the other two ends of the two-degree-of-freedom rhombic mechanical arm 10 are respectively connected with output shafts of the two direct current motors 2; the control circuit 1 is electrically connected to the dc motor 2. The control circuit 1 controls the direct current motors 2, the two direct current motors 2 rotate in a matched mode under the control of the control circuit 1, and the common end of the two-degree-of-freedom diamond-shaped mechanical arm 10 can move in the whole area below the touch screen 3. In consideration of the actual situation, the dc motor 2 of the present embodiment uses a small circular stepping motor.
As shown in fig. 3, the finger stall comprises a gesture detection module 5, a fixed bracket 6, a strong magnet 7, a braille module 8, a control module 9, a bluetooth module 12 and a power module 13; the bluetooth module 12, the power module 13 and the control module 9 are integrated in a control block 16, and the control block 16 is strapped to the arm of the user. The fixed bolster 6 is equipped with a plurality ofly, and a plurality of fixed bolsters 6 form the finger hole. The braille module 8 is installed below the fixing bracket 6. The bottom of the Braille module 8 is provided with a strong magnet 7, and the strong magnet 7 is matched with a solenoid 15 for use. The gesture detection module 5 is installed above the fixing support 6 and used for detecting the motion gesture of the fingers of the user. And the Braille module 8 and the gesture detection module 5 are both electrically connected with the control module 9 through a data line 14.
Wherein, integrated bluetooth communication function in the control circuit 1, control module 9 sends the instruction to control circuit 1 through bluetooth module 12, and control circuit 1 is used for controlling direct current motor 2 to rotate. The power module 13 is electrically connected with the attitude detection module 5, the braille module 8, the control module 9 and the bluetooth module 12 respectively, and supplies power to the attitude detection module 5, the braille module 8, the control module 9 and the bluetooth module 12. The touch screen 3 is in communication connection with the control module 9, and the output end of the touch screen 3 is electrically connected with the control circuit 1; the control module 9 is in communication connection with the control circuit 1 through a Bluetooth module 12, and the output end of the control module 9 is electrically connected with the input end of the Braille module 8; the control module 9 receives coordinates and character information of a contact position of the strong magnet 7 and the touch screen 3 transmitted by the touch screen 3, and the control module 9 converts the character information into corresponding braille information and sends the braille information to the braille module 8 for displaying.
As shown in fig. 5 and 6, the braille module 8 includes a plurality of probes 801 and a plurality of electromagnetic actuators 802, the number of the probes 801 corresponding to the number of the electromagnetic actuators 802; the plurality of electromagnetic actuators 802 are arranged in a square array, the probes 801 are movably arranged above the electromagnetic actuators 802, and each probe 801 can independently move up and down to achieve characters formed by required arrangement and combination. The array of the plurality of probes 801 is in contact with the finger pad to reproduce braille corresponding to letters on the touch panel 3.
As shown in fig. 6, in the present embodiment, there are 6 electromagnetic actuators 802 and 6 probes 801, the 6 electromagnetic actuators 802 are arranged in three rows and two columns, and the 6 probes 801 are also arranged in three rows and two columns. According to the standard Braille specification requirement, the distance between two adjacent probes 801 is 2.5mm, and the diameter of each probe 801 is 1.5 mm.
As shown in fig. 7, the ferromagnetic member 7 is formed by stacking a plurality of disk-shaped ndfeb ferromagnetic members each having a diameter of about 5 mm.
The blind person can stretch the forefinger into the finger hole formed by the fixed support 6, the braille information formed by the probe 801 on the braille module 8 is touched for reading, the size and the direction of the current passing through the solenoid 15 are changed through the control circuit 1, the movement of the finger sleeve worn by the blind person on the touch screen is pulled or blocked through the strong magnet 7, and then the character or image information needing to be read is found on the touch screen 3.
The use method of the reading device of the embodiment is as follows:
step one, the blind wears a finger stall, a control block 16 is tied on the arm, and a strong magnet 7 at the lower end of the finger stall is in contact with the touch screen 3;
secondly, the control circuit 1 drives the direct current motor 2 to move the two-degree-of-freedom diamond-shaped mechanical arm 10 according to the contact position of the strong magnet 7 and the touch screen 3, and the position of the solenoid 15 is adjusted to be right below the contact position of the strong magnet 7 and the touch screen 3; the control circuit 1 supplies power to the solenoid 15, and attracts the strong magnet 7 and the solenoid 15 together with the touch panel 3 interposed therebetween;
and step three, the control circuit 1 firstly guides the finger stall to the beginning position of the characters through the solenoid 15 according to the typesetting sequence of the characters on the touch screen, and then guides the fingers of the blind to move and read through the finger stall according to the typesetting sequence of the characters on the touch screen. The touch screen 3 detects the position where interaction occurs and the moving speed of the strong magnet 7 on the touch screen in real time, the touch screen 3 transmits the detected position information and the detected moving speed to the control circuit 1, and the control circuit 1 sends the position information and the character information of the position to the control module 9 through the Bluetooth module 12. The control module 9 converts the received character information into corresponding braille information, the control module 9 transmits the converted braille information to the braille module 8, the control probe 801 and the electromagnetic brake 802 form a corresponding probe array to represent the braille information, and the braille is read by the blind through touching the probe 801 with fingers. The gesture detection module 5 is located at the uppermost part of the finger stall and used for detecting the motion gesture of the finger stall in real time.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a towards magnetic force towed blind person's reading equipment of touch-sensitive screen which characterized in that: the finger stall type fingerstall comprises a device table and a fingerstall, wherein the fingerstall is positioned above the device table;
the device platform comprises a base (4), a moving mechanism, a touch screen (3) and a solenoid (15), wherein the touch screen (3) and the moving mechanism are both arranged on the upper surface of the base (4), the touch screen (3) is positioned above the moving mechanism, and the solenoid (15) is arranged on the moving mechanism;
the pulling finger sleeve comprises a fixed support (6), a strong magnet (7), a Braille module (8) and a control block (16); a plurality of fixing supports (6) are arranged, and finger holes are formed in the plurality of fixing supports (6); the Braille module (8) is arranged below the fixed bracket (6); a strong magnet (7) is arranged at the bottom of the Braille module (8), and the strong magnet (7) is matched with the solenoid (15) for use; the Braille module (8) is electrically connected with the control block (16), and the control block (16) is bound on the arm of a user through a binding band.
2. A touch screen-oriented magnetic traction blind-reading device according to claim 1, characterized in that: the moving mechanism comprises a control circuit (1), a direct current motor (2) and two-degree-of-freedom diamond-shaped mechanical arms (10), and the number of the direct current motors (2) is 2; the solenoid (15) is installed at the common end of the two-degree-of-freedom rhombic mechanical arm (10), and the other two ends of the two-degree-of-freedom rhombic mechanical arm (10) are respectively connected with output shafts of the two direct current motors (2); the control circuit (1) is electrically connected with the direct current motor (2) and the solenoid (15) respectively.
3. A magnetic-traction blind-reading device facing a touch screen, as in claim 2, characterized in that: the Braille module (8) comprises a plurality of probes (801) and a plurality of electromagnetic actuators (802), wherein the number of the probes (801) is consistent with that of the electromagnetic actuators (802); the plurality of electromagnetic actuators (802) are arranged in a square array, and the probes (801) are movably mounted above the electromagnetic actuators (802).
4. A magnetic-traction blind-reading device facing a touch screen, according to claim 3, characterized in that: the electromagnetic actuators (802) and the probes (801) are respectively provided with 6, and the 6 electromagnetic actuators (802) are arranged in three rows and two columns.
5. A magnetically-tractable blind-reading device facing a touch-screen according to claim 4, characterised in that: the distance between two adjacent probes (801) is 2.5 mm.
6. A magnetically-tractable blind-reading device facing a touch-screen according to claim 4, characterised in that: the diameter of the probe (801) is 1.5 mm.
7. A magnetic-traction blind-reading device facing a touch screen, as in claim 1, characterized in that: a control module (9) and a Bluetooth module (12) are arranged in the control block (16); the touch screen (3) is in communication connection with the control module (9), and the output end of the touch screen is electrically connected with the control circuit (1); the control module (9) is in communication connection with the control circuit (1) through the Bluetooth module (12), and the output end of the control module (9) is connected with the input end of the Braille module (8); the control module (9) receives coordinates and character information of the contact position of the strong magnet (7) and the touch screen (3) input by the touch screen (3), converts the character information into braille information and transmits the braille information to the braille module (8) for display.
8. The touch screen-oriented magnetic-traction blind-reading device of claim 7, wherein: the device is characterized by further comprising a gesture detection module (5), wherein the gesture detection module (5) is installed above the fixed support (6) and used for detecting the motion gesture of the finger sleeve; the gesture detection module (5) is electrically connected with the control module (9) through a data line (14).
9. The touch screen-oriented magnetic-traction blind-reading device of claim 8, wherein: still be equipped with power module (13) in control block (16), power module (13) are gesture detection module (5), braille module (8), control module (9) and bluetooth module (12) power supply respectively.
10. A magnetic force traction type blind person reading method facing a touch screen, which adopts the magnetic force traction type blind person reading device facing the touch screen as claimed in any one of claims 3 to 9, and is characterized in that the use method is as follows:
step one, the blind wears a finger stall and ties a control block (16) on an arm; the strong magnet (7) at the lower end of the finger sleeve is contacted with the touch screen (3);
secondly, the control circuit (1) drives the direct current motor (2) to move the two-degree-of-freedom diamond-shaped mechanical arm (10) according to the contact position of the strong magnet (7) and the touch screen (3), and the position of the solenoid (15) is adjusted to be right below the contact position of the strong magnet (7) and the touch screen (3); the control circuit (1) supplies power to the solenoid (15) to enable the strong magnet (7) and the solenoid (15) to be attracted together under the condition that the touch screen (3) is clamped between the strong magnet and the solenoid;
thirdly, the control circuit (1) guides the finger stall to the beginning position of the characters through the solenoid (15) according to the typesetting sequence of the characters on the touch screen, and then guides the fingers of the blind to move and read through the finger stall according to the typesetting sequence of the characters on the touch screen; the touch screen (3) detects the position of interaction and the moving speed of the strong magnet (7) on the touch screen in real time, and the touch screen (3) transmits the detected position information and the moving speed to the control circuit (1); the control circuit (1) sends the position information and the text information at the position to the control module (9) through the Bluetooth module (12); the control module (9) converts the received character information into corresponding braille information and transmits the braille information to the braille module (8), the control probe (801) and the electromagnetic brake (802) form corresponding braille information, and the braille is read by the blind through the finger touch probe (801).
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| CN202111638227.5A CN114495650B (en) | 2021-12-29 | 2021-12-29 | Magnetic traction type blind person reading device oriented to touch screen and reading method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171485A (en) * | 2022-08-04 | 2022-10-11 | 南京信息工程大学 | Electromagnetic drive type braille display device |
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