RU171871U1 - SOUND DEVICE FOR INFORMATION BOARD FOR THE BLIND AND DEFFICIENT - Google Patents

Abstract

The utility model relates to the field of means of facilitating orientation, obtaining information by persons with various diseases of the organs of visual perception, in particular to devices for transmitting audio information. It is preferable to use a utility model in the field of rehabilitation of people suffering from visual impairment, including blind people. The task that the utility model aims to solve is to increase the operating time of the sound device of the information stand for the blind and visually impaired. The technical result of the claimed useful model is to increase the time until the sound device information stand for the blind and visually impaired and increase its MTBF The sound device of the information stand for the blind and visually impaired, comprising a housing with a working field on the surface of the housing facing the user, a power source, a microcontroller connected to the acoustic unit, and buttons displayed on the working field, the active surface of which is tactilely distinguishable and protrudes above a working field, characterized in that the buttons are made touch, and the microcontroller is connected to a sensor module connected to the touch buttons and configured to measure the level of change s capacity.

Description

 The utility model relates to the field of means of providing orientation facilitation, obtaining information by persons with various diseases of the organs of visual perception, in particular to devices for transmitting audio information. It is preferable to use a utility model in the field of rehabilitation of persons suffering from impaired functions of the organs of vision, including blind people.

The information stand for the blind and visually impaired is a complex technical device consisting of a body, a working field, on which tactile-distinct (plane-convex) elements and inscriptions are applied, usually made in Braille, and (or) the letters of the Russian alphabet, and (or ) foreign alphabet, in numbers.

Moreover, all the inscriptions on the working field of the information stand for the blind and visually impaired are tactile-distinguishable (plano-convex). It is allowed to duplicate in flat letters and symbols. At the same time, the information stand is equipped with interconnected technical devices that allow the user to play back pre-recorded audio information at the request of the user, which helps to more fully inform people suffering from visual impairment about the information that is applied to the work field, for example, information about the institution, working hours, and routes to the institution, the location of the various infrastructures of the building and other relevant information.

A device is known tactile-sound mnemonic (http://neo-vo.ru/catalog/mnemoshemi-dion-taktil/mimic/standartnaia-mnemoskhema-dion-taktil/#here), consisting of a housing, a working field with tactile applied on it - distinguishable elements and inscriptions, and push buttons. The device has the technical ability at the press of a button to reproduce acoustic information previously recorded and stored on the device.

A device is known - a tactile-sound mnemonic circuit described in the patent of the Russian Federation for utility model No. 135173 (application No. 2013135902, priority date 07/31/2013), consisting of a housing with a first surface and a second surface, a first region, a second region and a third region with elements schema of the object, while the first area is provided with text made in standard font, the second area is equipped with text made in Braille. The described product implements the possibility of sound informing users by introducing into the tactile-sound mnemonic diagram an audio device consisting of a power supply unit, a memory unit, a DAC, a button, a speaker, while the power supply unit, a memory unit and a DAC are located in the tactile-sound mnemonic circuitry, and the button is located within the third area of the working field with ensuring its accessibility from the outside of the case.

This device operates as follows.

User - a person suffering from a violation of the function of the organs of vision, using his fingers, feels the surface of the device on which tactile-distinguishable (flat-convex) elements and inscriptions are applied. As a result of tactile perception, such a user receives the required information. If it is necessary to obtain this or other additional information in the form of audio information, the user presses the buttons, resulting in an acoustic reproduction of the recorded information.

The sound device implemented in the tactile-sound mimic diagram under consideration is taken as a prototype of a utility model.

The disadvantage of the prototype is the limited resource of the button and, as a result, the entire device as a whole. A button is a mechanical device for transmitting a signal / entering information by closing or opening two or more contacts. Due to the fact that the button is a pressing device, the mechanism used for pressing (pressing) has a limited resource associated with the material of the return mechanism, such as a mechanism that can structurally fail. In this case, the contact group of the button also has a limited resource.

A great influence on reducing the time between failures is, among other things, the strength of pressing the button by the user. Excessive pressure can cause the button to fail immediately at the time of pressing.

In the event of a button failure, the use of the sound device of the information stand for the blind and visually impaired in their functional purpose becomes limited, and the sound device itself is simply impossible.

The problem, which the utility model is aimed at, is to increase the operating time of the sound device of the information stand for the blind and visually impaired.

The technical result of the claimed utility model is to increase the time until the sound device information stand for the blind and visually impaired and increase its MTBF.

The specified technical result is achieved due to the exclusion from the hardware component of the device element - the button, the operation of which is based on the closure or opening of the contacts that occur when a structurally specified force is applied along the imaginary axis of pressing, which is most often perpendicular to the plane of attachment of the button.

Exclusion from the hardware component of the device of the described element is carried out by replacing the described type of button design with another button type, in which there is no mechanism for closing and opening contacts, and the implementation of the functional is carried out due to another physical property - capacity change and the ability to measure this change.

The sound device of the information stand for the blind and visually impaired, comprising a housing with a working field on the surface of the housing facing the user, a power source, a microcontroller connected to the acoustic unit, and buttons displayed on the working field, whose active surface is tactilely distinguishable and protrudes above the working field, characterized in that the buttons are touch, and the microcontroller is connected to a sensor module connected to the touch buttons and configured to measure the level of change and capacity.

Since the type of power source does not affect the achievement of the technical result, any device known from the prior art can be used as a power source.

The working field is a surface facing the user on which visualized and tactile-distinguishable elements and inscriptions are applied.

The acoustic unit of the utility model is capable of storing digital information, the possibility of converting it from a digital file to an analog signal and playback through the speaker. A hardware-acoustic unit may consist, for example, of a microcontroller of an acoustic unit, to which a command is received from a microcontroller of a device, a digital storage device that stores pre-recorded audio information in the form of a digital file and which has a connection to the microcontroller of an acoustic unit, as well as a speaker, which has a connection to the microcontroller of the acoustic unit.

The sensor module implemented in the utility model should provide the ability to measure the level of change in the capacity of the touch buttons, and depending on the level of such a change, send a signal that corresponds to the fact that the corresponding touch button is activated on the microcontroller.

As an example of the material equivalent of the sensor module, for example, the MPR121 capacitive touch keyboard controller can be proposed, which allows to provide the desired implementation of the utility model.

The active surface of the touch buttons is a part of the touch button that the user has the ability to touch and whose capacity changes as a result of such a touch.

The tactile distinguishability of the touch buttons suggests that the user can distinguish the tactile button with the fingers of the hand - that is, by touch with the fingertips.

The implementation of the utility model is as follows.

The user through the pads of the fingers carries out tactile perception of the working field of the information stand for the blind and visually impaired. When you touch the active surface of the sensor button with your fingertips, the capacity of the sensor button changes, which is measured by the sensor module, and as a result of such measurement, the generated signal is fed to the microcontroller. The microcontroller, in the case of a corresponding signal, issues a command to the microcontroller of the acoustic unit, which extracts digital information from the digital storage device, converts it into an analog signal, and through the speaker of the acoustic unit, acoustic information is reproduced that corresponds to the touch button to which user exposure.

As a result of the fact that the user is deprived of the opportunity to directly press the button, including with excessive force, the possibility of mechanical destruction of the button and its elements is excluded, as a result of which the operating time of the sound device of the information stand for the blind and visually impaired significantly increases.

Claims (1)

 The sound device of the information stand for the blind and visually impaired, comprising a housing with a working field on the surface of the housing facing the user, a power source, a microcontroller connected to the acoustic unit, and buttons displayed on the working field, whose active surface is tactilely distinguishable and protrudes above the working field, characterized in that the buttons are touch, and the microcontroller is connected to a sensor module connected to the touch buttons and configured to measure the level of change and capacity.