SU1460735A1 - Device for providing raised-pattern graphic information for blind persons - Google Patents

Abstract

The invention relates to devices for training and communicating with the blind and visually impaired. The purpose of the invention is to increase reliability in operation. The device comprises a flat information carrier and a cassette with holes therein for accommodating ferromagnetic balls therein. Between them, a flat plate with a rectangular cutout oriented along the rows of the matrix is located with the possibility of moving along the rows of the matrix. Electromagnets located above the rectangular cutout and a synchronization sensor connected to the plate are mechanically connected to the plate. electromagnet control unit. Each hole has the shape of a truncated cone. 2 Il. from 1 (L

Description

one

The invention relates to devices for presenting information perceived by the use of OSI.

The aim of the invention is to increase reliability in operation.

Fig. 1 shows the functional layout of the devices in Fig. 2, the structure of the device (section A-A in Fig. 1).

The device for presenting the relief graphic information contains a flat carrier: information, made of a non-magnetic material, in which holes 2 are made, arranged in the form of a matrix. In the cassette 3 for storage of ferromagnetic balls 4, holes 5 are made, similar to the apertures of the information carrier.

Holes 2 and 5 are cylindrical. A locking plate 6 is placed between the information carrier 1 and the cassette 3 with a rectangular notch 7 oriented along the columns of the matrix.

Above the information carrier 1 s zao; The rum is placed on the information wiping tool 8, executed in the form of a profiled rail located along the edge of a rectangular plate. Electromagnets 10, located on top of the information carriers 1 above the rectangular notch 7, are connected to the outputs of the control unit 9, their number corresponds to the number of rows of the matrix.

To synchronize the operation of the control unit 9 on the carrier 1 information4

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The sensor is located connected to the control input of the electromagnet control unit 11 synchronization sensor, which can be made according to any known principle of displacement sensors (for example, a number of coding holes 12 are printed on the information carrier 1 with a matrix pitch).

The execution of control block 9 depends on the source of input information (computer, communication equipment, various kinds of graphic information readers, etc.) and the task set (display of input information without changes or with scaling, conversion with transcoding, for example, to one of Braille, etc.), but in any case, its main function in relation to the proposed device is to turn on and off various combinations of electromagnets 10 depending on the input information and the position of the media 1 in The relative deformations of flax is electromagnets 10. If necessary, the control unit can be obtained and the control function of the propulsor, if such is used. The profiled rail 8, the electromagnets 10 and the synchronization sensor 11 are mechanically connected to the fixing plate 6 arranged to move along the array of holes along the rows relative to the information carrier 1 and the cassette 3 for the ferromagnetic balls 4.

Movable can be either plate 6 or media .1 information and cassette 3.

More constructively preferred is the version with movable information carrier 1 and cassette 3.

The dimensions of the carrier and the matrix of holes on it (the number of rows and columns in the matrix) are not limited in principle and can be selected according to the desired image size, but it is preferable to perform the matrix with a 2.7 mm slope, which corresponds to the standard distance of points in Braille.

The device for presenting the relief gphic information is as follows.

The initial state of the device is the state with the

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end to the right of Fig. 1 (in the embodiment with a movable image carrier) or plate 6 pushed to the left (in the variant with a movable fixing plate). In this state, the information previously collected on the carrier 1 is read out and in this state the device can be indefinitely long.

In order to receive new data on the carrier 1, it is necessary to erase the old information and type the new one. To do this, it is sufficient to move plate 6 to the end to the right and then return to the initial state.

After erasing the entire old image, the control of the previously de-energized electromagnets 10 is turned on, the movement sensor 11 is turned on and changed to the opposite direction of movement of the movement drive. The movement of the carrier 1 and the cassette 3 in the opposite direction begins and the set of the new image is carried out.

In this case, as the synchronization signals from the displacement sensor 11 arrive, the control unit 9 turns on and off a certain, corresponding to the displayed information, combinations of electromagnets 10, and those balls that come from the next, currently passing by electromagnets 10 column of the matrix, are turned on electromagnets, rise from their sockets 5 in the cassette 3, fall through the notch 7 into the corresponding apertures of the carrier 1, are held in a raised position until they are firmly fixed next to the cutout th part of the plate 6.

After the entire image has been collected in this way, i. E. when the carrier 1 reaches the extreme position, all electromagnets, displacement sensor 11 and power supply to the drive are de-energized again. The device comes to its original position.

Claims (1)

Compared with the known, the device has a simpler design, is easier to handle and has a higher reliability. Invention Formula thirty 40 45 50 Device for the presentation of embossed graphic information for the device; Device for the presentation of embossed graphic information for the user. containing a flat storage medium with vertical holes in the form of a matrix for placing ferromagnetic balls in them, a cartridge for storing balls, a plate with a rectangular cutout oriented along the columns of the matrix placed between the carrier and the cartridge, connected to the unit managing them characterized in that, in order to increase reliability in operation, it is equipped with a synchronization sensor connected to the control input of the electromagnet control unit, an information erasing device, implemented in . Signal shaped reiki, in the cassette there are holes similar to the holes of the information carrier, and the synchronization sensor, electromagnets and the profiled rail is rigidly connected to the plate and mounted above the information carrier, the electromagnets are located above the rectangular notch, and the profiled rail is along the edge of the rectangular notch of the II plate, while the information carrier and the plate are installed with relative displacement along the rows of matrix 1 , the storage medium is rigidly connected to the cassette, and all the openings of the dies are cylindrical. 0 Жл.1 .-. J tv f sync. Use of Electro / HMagni / Pami. Aa