RU132991U1 - ORIENTATION AND INFORMATION SYSTEM - Google Patents

Abstract

Orientation and information system, consisting of at least one information unit and a wearable device, characterized in that a microphone and an operational amplifier are inserted into the wearable unit, the corresponding output of which is connected to the control circuit of the wearable unit, which, in turn, connected to the digital volume control introduced into the wearable unit, and in the body of the wearable unit there is an opening for the receiving part of the microphone.

Description

The scope of the utility model relates to radio electronics, and more specifically, to means of orientation in space and the provision of information.

It is preferable to use a utility model in the field of rehabilitation of people with visual impairments, as a means of orienting and informing visually impaired and blind people when they move through various infrastructures (street, institution, parks, etc.).

A common problem with the operation of orientation and information systems is that the mobile device of this system operates using a power source - a battery. The specified battery, depending on capacity, is designed for different operating times. Due to the fact that the battery’s operating time is limited, there may be situations in which its full discharge occurs earlier than the user can charge it, and therefore the device stops working and the user is deprived of the possibility of operating both the mobile device and the system as a whole .

A prior art device is known for orienting the blind, adopted as an analogue to the claimed utility model (Patent of the Russian Federation No. 43161, September 23, 2004, October 10, 2005). The specified device contains an information block including a radio transmitter equipped with an antenna with a narrow radiation pattern, a digital storage device, a timer and a control circuit; and a wearable voice alert unit including a radio receiver and memory, a decoder, a digital-to-analog converter loaded with an electro-acoustic converter, and a control circuit.

Known communication system for informing and orienting the blind, consisting of at least one information unit, including a digital storage device, encoder, radio transmitter, timer, control circuit, digital clock calendar, radio, decoder, generator, digital volume control, amplifier and an electro-acoustic transducer and a wearable unit including a manual control device, an encoder, a radio transmitter, a control circuit, a tactile device, a radio receiver, a decoder, a digital ovoe memory digital to analog converter, manual volume control, power, and electro-acoustic transducer (Russian Federation Patent №97918 of. 29.03.2010, op. 27.09.2010). The specified system is selected as a prototype, as the closest in its technical solution.

The work of the prototype is as follows.

In the first digital storage device of the information unit installed on the object, information about the object is digitally contained. The first radio transmitter with a frequency set by the timer sends a message encoded by the first encoder to the air containing the specified information.

The transmitted message is received by the radio of the wearable unit, decoded and recorded in a digital storage device, after which the reception is blocked, and a vibration signal is supplied to the user through the tactile device in order to attract the user's attention. Then the message is extracted from the storage device, converted into an analog signal and through a manual volume control and amplifier is fed to an electro-acoustic transducer, which is reproduced as a voice message, listened to by the user in real time.

The disadvantage of analogue and prototype is that they lack the technical ability to control the level of energy consumption, the battery of the wearable unit. So, for example, when scoring information through a wearable unit, the volume level of the wearable unit does not depend on the noise level of the environment. At the same time, depending on the environment in which the wearable unit is used - in a noisy or quiet environment, automatic volume control, for example, lowering the volume level when the user is in a quiet environment, will allow you to economically consume the electric energy of the battery of the wearable unit.

The task to which the claimed utility model is directed is to save the electrical energy of the power source of the wearable unit, depending on its operating conditions.

The technical result of the claimed utility model is to save power consumption of the battery of the wearable unit of the orientation and information system, and increase the time of its operation without recharging.

Orientation and information system, consisting of an information block and a wearable block, into which a microphone, an operational amplifier, and a digital volume control are additionally introduced.

As an operational amplifier, any operational sound amplifier, for example, manufactured by Texas Instruments, can be used.

As a digital volume control, an angular encoder for controlling volume and sound balancing can be used, for example, MAX5440 manufactured by Maxim Integrated Products;

Orientation and information system, consisting of at least one information unit and a wearable device, into which a microphone and an operational amplifier are connected in series, the corresponding output of which is connected to the control circuit of the wearable unit, which in turn is connected to a digital input into the wearable unit volume control, and in the body of the wearable unit there is an opening for the receiving part of the microphone.

The work is as follows. After the message is received from the information block, it is decoded and recorded in the digital storage device of the wearable block, and the user is given a vibration signal in order to attract attention, before voicing the received information, the microphone converts the sound vibrations into electric current fluctuations. Depending on the ambient noise level, such vibrations can be strong or weak. The electrical signal obtained as a result of the conversion is fed to an operational amplifier, and then, in turn, to the control circuit of the wearable unit. From the control circuit of the wearable unit, the corresponding signal is fed to a digital volume control, by means of which the necessary volume level is set depending on the ambient noise.

After that, the message received by the wearable unit is extracted from the storage device, converted into an analog signal and through a digital volume control and amplifier is fed to an electro-acoustic transducer, which is reproduced as a voice message, taking into account the automatically set volume level.

For example, if the ambient noise level is insignificant, that is, when there is no need for an increased volume level, the signal is fed to the control circuit via a microphone, an operational amplifier, and the control circuit sends a signal to reduce the volume level, for example, to 25% of the maximum volume control.

A variant of work is possible, in which the user, being in an environment with a high noise level, increased the volume of the wearable unit, for example, to the maximum possible. Entering an environment with an average noise level, the microphone transmits a signal about the noise level to the operational amplifier, from it to the control circuit, and it, in turn, transmits a signal to the digital volume control to lower the volume level to, for example, 50% of the maximum volume level .

Due to the automatic reduction of the volume level depending on the noise level of the environment, there is a significant saving in electrical energy of the battery of the wearable unit, which will increase the operating time of the wearable unit, which, in turn, will allow the user to use the communication system for a longer time.

Claims (1)

Orientation and information system, consisting of at least one information unit and a wearable device, characterized in that a microphone and an operational amplifier are inserted into the wearable unit, the corresponding output of which is connected to the control circuit of the wearable unit, which, in turn, connected to the digital volume control introduced into the wearable unit, and in the body of the wearable unit there is an opening for the receiving part of the microphone.