RU178198U1 - BRAIL FONT INFORMATION INPUT - Google Patents

Abstract

The invention relates to a device for inputting information in Braille. The technical result is to increase the accuracy of the character set of braille. The technical result is achieved by a device for inputting information in Braille, which contains a panel for writing and an electronic control circuit. The panel for writing is divided into 16 cells, consisting of six holes for entering points 3 by 2. The device further comprises an optical system made in the form of intersecting 32 vertical and 3 horizontal light lines, the intersections of which are opposite the input holes dots forming the six-digit braille symbol. On the ends of the optical lines, infrared LEDs are located on one side, and photodetectors are located on the opposite side. The electronic circuit contains a microcontroller configured to turn on the LEDs one by one, read the status of the respective photodetectors, determine the exact position of the blocked point in the character input field and transmit information to a number of electronic cells in the Braille font of the reading panel. The reading panel is configured to display the entered character. Moreover, above each cell of the reading panel there is a button configured to clear the contents of the cell.

Description

The utility model relates to educational devices for the blind, and in particular to a device for entering information in Braille.

The Braille code, which is mainly used by a visually impaired person, consists of six 3 by 2 points or 8 4 by 2 points. The Braille code was commonly used to make books. However, in accordance with the recent development of electronic technology, not only a book, but also the screen of an electronic device is used as a means for presenting text these days. An electronic device typically uses a keyboard or touchpad to enter text. However, the keyboard that is commonly used is made with a specification that is convenient for the average person who does not have any visual impairment, but a visually impaired person cannot conveniently use such a keyboard.

Known keyboard for typing in Braille, selected as the closest analogue, having a base, six keys for typing, on the left and right of the base, one space key located in the lower, central part of the base, two function keys "Slaughter "and" Print ", two indicator buttons of the attribute of the" Uppercase "and" Digital "mode, and the indicator buttons are located above the Space bar, and the function keys" Face "and" Print "are located to the left and right of the keys for typing (RU 23211 U1, May 27. 2002).

The disadvantage of the closest analogue is the low accuracy of typing in Braille using six keys in the absence of the ability to verify and quickly correct the entered character.

In this regard, there is a need to create a device for entering text in Braille, which has increased typing accuracy.

This problem is solved by the proposed device for entering information in Braille, which contains a panel for writing and an electronic control circuit. The panel for writing is divided into 16 cells, consisting of six holes for entering points 3 by 2. The device further comprises an optical system made in the form of intersecting 32 vertical and 3 horizontal light lines, the intersections of which are opposite the input holes dots forming the six-digit braille symbol. On the ends of the optical lines, infrared LEDs are located on one side, and photodetectors are located on the opposite side. The electronic circuit contains a microcontroller configured to turn on the LEDs one by one, read the status of the respective photodetectors, determine the exact position of the blocked point in the character input field and transmit information to a number of electronic cells in the Braille font of the reading panel. The reading panel is configured to display the entered character. Moreover, above each cell of the reading panel there is a button configured to clear the contents of the cell.

The technical result achieved by the implementation of this utility model is to increase the accuracy of the character set of the Braille font.

The invention is illustrated by drawings.

Figure 1 - diagram of the optical system of a device for entering information in Braille.

A device for inputting information in Braille is a panel for writing divided into 16 cells (7), consisting of six holes (6) for entering points 3 by 2 and contains an optical system and an electronic control circuit.

A set of points in Braille is made on the panel for writing using a special stylus or sharpened pencil.

The optical system is made in the form of intersecting 32 vertical (9) and 3 horizontal (8) light lines, at the intersections (5) forming the six-digit Braille symbol. On the ends of the optical lines, infrared LEDs (1, 2) are located on one side, and photodetectors (3, 4) are located on the opposite side. The LEDs (1, 2) and photodetectors (3, 4) are soldered to the printed circuit board, covered with a lid of opaque material on top. Holes (6) were drilled in the cover opposite the intersections (5) of the optical lines (8, 9) in the form of six-point braille. Fiber optic grooves and recesses for LEDs (1, 2) and photodetectors (3, 4) are cut from the inside of the lid.

An electronic control circuit is located on the back of the circuit board. It consists of a microcontroller and shift registers. Shift registers are used to increase the number of input / output ports of the microcontroller. The microcontroller turns on the LEDs one by one and reads the status of the respective photodetectors.

When optical lines (8, 9) are blocked at the point of pressing with the stylus, the microcontroller determines the exact position of the point in the character input field and transmits the corresponding information via the serial interface, which is connected to a number of electronic cells in the Braille font of the reading panel, which allow reading the entered text, or to other devices.

The entered point is displayed on the reading panel by raising the plastic convex point in the corresponding cell. Thus, by pressing a point on the panel for writing, a Braille symbol is formed on the reading panel.

After entering text into the cells for writing, a person can check the written text in the appropriate cells for reading.

If an error is detected when checking the entered text, then the device provides the ability to correct the entered information. There is a button above each cell in the reading panel, when you click on it, the contents of the cell are cleared and you can enter the character again.

To save the typed text on a digital medium, a person presses a special button. The controller converts Braille code characters to text characters and writes to electronic media.

Claims (1)

A device for inputting information in Braille containing a panel for writing and an electronic control circuit, characterized in that the panel for writing is divided into 16 cells, consisting of six holes for entering points 3 by 2, the device further comprises an optical system made in the form of intersecting 32 vertical and 3 horizontal light lines, the intersections of which are located opposite the holes for entering the points forming the six-digit Braille symbol, at the ends of the optical lines on the one hand there are LEDs inf red light, photodetectors are located on the opposite side, the electronic circuit contains a microcontroller, which is capable of alternately turning on the LEDs, reading the status of the respective photodetectors, determining the exact position of the overlapped point in the character input field and transmitting information to a number of corresponding electronic cells in the Braille font of the reading panel made with the ability to display the entered character, and above each cell of the reading panel there is a button made with the ability to clear the contents of the cell.

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