JP3591029B2 - Braille data input / output terminal - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a terminal device that involves data input / output operations, and more particularly to a terminal device that requires data input / output operations in consideration of low vision users.
[0002]
[Prior art]
Data input of input / output terminals, which have become widespread, is performed by pressing a key top using a keyboard, or by inputting specific information displayed on a display screen or touch panel by clicking a mouse cursor or touching a finger. ing.
[0003]
[Problems to be solved by the invention]
However, such an operation / display terminal device is intended for a person with normal visual acuity, and is not in a data input / output processing mode in consideration of a low-vision person.
[0004]
In view of this, as an aid to data input / output performed by a low-vision person, Japanese Patent Application Laid-Open No. 5-158607 discloses a method in which heating elements are provided in a matrix instead of protrusions, and data input based on Braille information using a heat pattern based on the heating points is performed. In this case, the Braille data in this case has a drawback that it becomes unrecognizable due to the body temperature of the customer's fingertip due to lack of heat capacity at the heat generation point, or the operation of the terminal device is disclosed in Japanese Patent Application Laid-Open No. 3-105462. There is a drawback in that only predetermined Braille information is displayed at a fixed position on the surface, and information to be displayed is limited. There are also terminal devices that output operation information by voice or the like. However, there are cases where it is difficult to hear due to the surrounding noise, and there are cases where the display information (for example, the amount of money) is not desired to be known to others. There was a difficult surface.
[0005]
The present invention provides a Braille data input / output operation terminal device that can variably display various kinds of information in Braille on an operation surface of a terminal having a limited area, and can be easily used by people with low vision. The purpose is to:
[0006]
[Means for Solving the Problems]
The above problems are solved by the present invention configured as follows.
FIG. 1 is a diagram illustrating the principle of the present invention. In the figure, 1 is a touch panel, 2 is a projection means, 3 is a Braille block including a plurality of projection means 2 provided in the touch panel 1, 4 is a pressure sensor for sensing depression of the Braille block 3, and 5 is Braille to be displayed and read. Correspondingly, a braille data control unit for controlling the projection position in the braille block 3 at the display position, a projection control unit 6 for controlling the projection means 2 in the braille block, and a pressure detection unit 7 for detecting the output of the pressure sensor 4 is there.
[0007]
[Action]
In the configuration shown in FIG. 1 described above, a plurality of Braille blocks 3 are arranged on the touch panel 1, and a plurality of projection means 2 are provided in each of the Braille blocks 3. The Braille data control unit 5 displays the operation guide for the terminal operator as Braille information, and outputs the position information of the Braille block 3 to be displayed and the position information of the projection means 2 to be projected in the block. With this position information, the Braille block 3 and the excitation position in the Braille block 3 are instructed and output from the projection control unit 6, and Braille data is displayed on the touch panel 1. When the braille block 3 on which the braille data is displayed is pressed by the terminal operator, a signal is output from the pressure sensor 4. The pressing signal of the pressure sensor 4 is verified by the pressure detecting unit 7 as to whether it is a signal output pressed by a malfunction, only a normal signal is adopted, and the Braille data control unit 5 recognizes the Braille data input without error.
[0008]
【Example】
Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 2 is an explanatory diagram for selecting a projection position of the Braille block 3 to which the present invention is applied. FIG. 5A is a diagram corresponding to the selection of the braille projection position. In the figure, reference numerals 31-1 to 31-n denote braille blocks, respectively. A square indicated by 21 is a projection, and a shaded state is a projection state. Letters Y and X indicate selection signal lines, and the same reference numerals as those in FIG. 1 indicate the same components. FIG. 7B is a schematic circuit diagram of the selection of the projection position, and each projection 21 is selected as the intersection of the crossing signal lines (X, Y).
[0009]
With this selection circuit, in the case of FIG. 2A, the first Braille block 31-1 selects three points of (Y2, X1), (Y1, X2), and (Y3, X2) at the positions indicated by shading. There are protrusions. Since the next second Braille block 31-2 is not selected, no projection is generated. In the third Braille block 31-3, two points (Y1, X5) and (Y3, X6) are selected and projected at the shaded positions. Has occurred.
[0010]
The customer of a low-vision person can easily know the information currently displayed by touching the Braille blocks 31-1 to 31-n on the touch panel 1 with a fingertip or the like. Then, if the information being displayed is information for guiding input, the corresponding Braille block (31-1, 31-3) is pressed. The pressure sensor 4 provided in the depressed Braille block 3 emits an output in response. In the present embodiment, the pressure sensors 4 are provided for each of the positions of the individual projections 21, and when any one of them outputs an output, the output of the remaining five pressure sensors is prohibited. Of course, only one pressure sensor may be provided in one Braille block.
[0011]
FIG. 3 is a control block diagram of the embodiment of the present invention. In the figure, 500 is a processing device, 600 is a projection processing unit, 700 is an input processing unit, and 701 is a collation unit.
The processing device 500 has a braille display pattern registered in a table or the like (not shown), and shifts to a braille input / output mode by inputting a mode selection key (not shown).
[0012]
The processing device 500 extracts the braille information for operation guidance from the table, the number (No.) of the braille block 3 on the touch panel 1 on which the braille is to be displayed, and the projection position indicating signal (X, Y /. ../X, Y) is output. The number (No.) of the Braille block 3 is input to the projection processing unit 600 and the input processing unit 700, respectively, and the projection position indication signal (X, Y /... / X, Y) in the block is output to the projection processing unit 600. Is input to
[0013]
The projection processing section 600 selects and controls the display circuit as described in FIG. 2 based on the input two information signals, and generates the projection 21 in the designated block position on the touch panel 1. When the customer presses the braille blocks 31-1 and 31-3 including the protruding state, a signal from the pressure sensor 4 at the position of the braille block is input to the input processing unit 700. A collating unit 701 is provided in the input processing unit 700 in a pair with the braille block 3 on the touch panel 1, and the number (No.) of the braille block 3 described above becomes an input to each of the collating units 701. ing. The signal from each pressure sensor 4 is the other input of the matching unit 701 forming a pair, and the input of the pressure sensor 4 due to a malfunction is avoided by comparing the two inputs.
[0014]
Therefore, when the braille blocks 31-1 and 31-3 are pressed in the protruding state in FIG. 2, the matching of the matching units 701-1 and 701-3 is enabled in the input processing unit 700 and an output is generated, and the processing device 500 Is input with a Braille input data signal. When receiving a signal (Braille data input) from the input processing unit 700, the processing device 500 outputs confirmation of the input data by a voice device (not shown).
[0015]
FIG. 4 is an explanatory view of a projection mechanism according to a first embodiment of the present invention. In the first embodiment, pump equipment is used for projection control, and FIG. 7A shows a projection state, and FIG. 7B shows a non-projection state. As described with reference to FIGS. 2 and 3, when the processing unit 500 instructs the braille block 3 and the projection position (X, Y) in the block, the instruction signal is input to the pump equipment by the projection processing unit 600 and the pump is Is driven, and the on-off valve 22 at the projection designated position (X, Y) is selectively driven. That is, the on-off valve 22 provided at the lower end of the reservoir 25 moves to the left to open the inlet and close the outlet, so that the liquid 23 in the pipe 26 is injected into the reservoir 25. The top of the reservoir 25 is sealed with the elastic material 20 and protrudes by the injection pressure. In order to release the protruding state, the pump 24 is operated on the discharge side, and the on-off valve 22 is moved to the right to open the outlet and close the inlet, thereby discharging the liquid 23 inside.
[0016]
The fluid used in the above embodiment may be either liquid or gas, and the pump may be provided for each projection or for each Braille block.
FIG. 5 is an explanatory view of a projection mechanism according to a second embodiment of the present invention. In the second embodiment, a pair of a magnet and an electromagnet is used for projection control. FIG. 7A shows a projection state due to magnetization, and FIG. 7B shows a non-projection state due to non-magnetization. As described with reference to FIGS. 2 and 3, when the processing device 500 specifies the braille block 3 and the projection position (Xk, Yi) in the block, a current flows through the electromagnet 28 at the position. As a result, the upper portion of the electromagnet 28 becomes “S pole” and repels the “S pole” of the magnet 27. An elastic material 20 is attached to the top of the head, and the magnet 27 protrudes by repulsion with the electromagnet 28. If the current of the electromagnet 28 is cut, the magnet 27 returns to the original position.
[0017]
【The invention's effect】
As is apparent from the above description, according to the present invention, a variety of information can be variably displayed in Braille on the operation surface of a terminal having a limited area, and furthermore, an undesired position can be displayed at an undesired position. Even if Braille is depressed, it can be excluded without input data, and a special effect can be obtained that can be used accurately and easily even by people with low vision.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating the principle of the present invention.
FIG. 2 is an explanatory diagram for selecting a projection position of a Braille block.
FIG. 3 is a control block configuration diagram of the embodiment.
FIG. 4 is an explanatory diagram of a configuration according to a first embodiment.
FIG. 5 is an explanatory diagram of a configuration according to a second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Touch panel 2 Projection means 3 Braille block 4 Pressure sensor 5 Braille data control unit 6 Projection control unit 7 Pressure detection unit 20 Elastic material 21 Projection 22 Open / close valve 23 Liquid 24 Pump 25 Storage unit 26 Tube 27 Magnet 28 Electromagnet 500 Processing device 600 Projection Processing unit 700 Input processing unit

Claims (1)

On the touch panel, a plurality of Braille blocks for displaying Braille in the state of point projections and non-projections are arranged, and a pressure sensor is provided for each of the Braille blocks to detect that the Braille block has been pressed and to generate a press detection signal. A Braille data input / output terminal,
A signal output from the processing device based on a display pattern of Braille registered in advance, a signal for selecting a Braille block indicating the number of a Braille block on which a Braille to be displayed on the touch panel, and a projection position of a point in the Braille block instruction signal a is set to enter the projection instruction signal, and a projection unit for displaying braille generate a projection on the point-shaped blocks,
It is provided corresponding to each Braille block, and checks whether there is an input from both a selection signal of the Braille block input to the projection processing unit and a press detection signal generated by the pressure sensor. A matching unit that outputs a braille input data signal indicating that the braille block has been instructed,
A Braille data input / output terminal, comprising:

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