KR20140004368A - Sound signal apparatus for person who is visually impaired - Google Patents

Abstract

The present invention relates to a sound signal apparatus for a visually impaired person which adjusts the volume automatically. The sound signal apparatus for a visually impaired person which provides voice alerts on the status of a traffic light, includes a master sound signal apparatus which adjusts the sound volume of the traffic light voice alert to a sound volume corresponding to a certain time period, where the sound volume for each time period has been preset. The sound signal apparatus can reduce civil complaints against noise and contribute to the safe ambulation of a visually impaired person when operating normally. [Reference numerals] (110) Master sound signal apparatus; (111) Timer unit; (112) Volume control unit; (113,121) Communications unit; (114,122) Signal strength detecting unit; (115,123) Signal status obtaining unit; (116,124) Signal guide information processing unit; (117,125) Sound output unit; (120) Slave sound signal apparatus

Description

Sound signal for visually impaired {SOUND SIGNAL APPARATUS FOR PERSON WHO IS VISUALLY IMPAIRED}

The present invention relates to an acoustic signal for the visually impaired, and more particularly, to an acoustic signal for the visually impaired.

The acoustic signal for the visually impaired is a traffic light auxiliary device for expressing the green and red of the traffic signal as a voice, and is usually set and operated with a loudness of about 5 (dB) based on road noise.

Due to this operating system, complaints are often raised due to noise from the area in which the acoustic signal is installed, and there is a problem in which residents can arbitrarily adjust the sound of the acoustic signal and make a point where normal operation is not possible.

Korean Patent No. 10-1030506 relates to an input / output control device for an audio signal device for the visually impaired. More specifically, it is connected to a walking signal light of a pedestrian crossing and is an additional device such as a pedestrian traffic light that notifies the signal by sound. When the sound signal is activated by supplying the power of the sound signal and pressing the pushbutton switch or the button on the remote control, the power control and input / output control can be used to use the voltage generated here as the input of the pedestrian-operated exchange signal controller. For the purpose of According to the disclosed technology, the output of the power driver is controlled using a signal input from a traffic signal controller, but when a flashing signal is input, the output of the power driver is turned on, and when the flashing signal is not input, a pedestrian signal A control unit for turning on the output when the signal is a red light; A power driver converting the signal input from the controller into a DC signal and outputting the converted signal; A voltage detector which detects a voltage (AC voltage) output from the power driver and feeds it back to the controller and checks whether a correct signal is output by comparing with an input data signal; An input detector for detecting the operation of the acoustic signal and converting the input AC voltage into a direct current and transmitting the same to a relay driver; And a relay driving unit for connecting the signal from the input detection unit to the input of the traffic signal controller through each channel contact point. According to the present invention, when the night light is turned off, the walking light is turned off, but the power supply (red light output) to the sound signal to be in a standby state as usual, and the push button switch for the sound signal or the button switch of the remote control Press to enable the output of a walking signal, it is also possible to operate at each crosswalk.

Korean Utility Model Registration No. 20-0364127 is a sound signal device for time-disabled people who can visually cross the crosswalk in the desired direction stably by using the sound specified for each cross direction according to the direction of the cross board where the sound signal device is installed. The present invention relates to a directional sound, which stores a sound code identifying a desired direction among all possible direction codes and corresponding acoustic data for each direction, and reads the sound code when a wireless signal including the sound code is received. A sound signal having a function of radiating, communicating with a wireless signal in order to check the sound for each direction code and the direction code, and having a power saving function to reduce power; A wireless controller which reads the direction requested from the key input unit and outputs a sound code corresponding thereto as a wireless signal and simultaneously outputs a confirmation sound; Characterized in that it comprises a braille block displayed on the strut and braille map with the acoustic signal installed to check the position and direction of the acoustic signal. According to the disclosed technology, it is possible to reduce the confusion in the direction detection generated, and to solve the difficulty of managing the unique code generated, and to reduce the cost and the power saving.

Korea Patent Registration No. 10-1030506 Korea Registration Utility Model No. 20-0364127

An embodiment of the present invention is to provide a sound signal for the visually impaired to automatically adjust the size of the sound.

Among the embodiments, in the audio signal for the visually impaired providing a guide voice for the state of the traffic lights, the audio signal for the visually impaired adjusts the volume of the guide voice to the size of the volume corresponding to each time zone already set It includes a master sound signal.

In one embodiment, the master sound signal includes a timer unit for checking a current time to determine a time zone that is already set; A volume control unit applying a volume control value corresponding to the time zone checked by the timer unit; A signal strength detector for detecting a signal strength for adjusting a volume of sound from a volume control value applied by the volume controller; A signal state obtaining unit obtaining the state of the traffic light; A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And a voice output unit configured to output the guide voice after adjusting the volume of the guide voice read by the signal guide information processor according to the control signal generated by the signal guide information processor.

In one embodiment, the master sound signal may further include a communication unit for transmitting a volume control value applied from the volume control unit to a slave sound signal.

In another embodiment, the audio signal for the visually impaired further includes a slave sound signal for receiving the volume control value for adjusting the volume of the guide voice from the master sound signal to adjust the volume of the guide voice and then output the guide voice. can do.

In one embodiment, the slave sound signal unit is a communication unit for receiving a volume control value transmitted from the master sound signal; A signal strength detector for detecting a signal strength for adjusting a sound level from the volume control value received by the communication unit; A signal state obtaining unit obtaining the state of the traffic light; A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And a voice output unit configured to output the guide voice after adjusting the volume of the guide voice read by the signal guide information processor according to the control signal generated by the signal guide information processor.

Among the embodiments, in the audio signal for the visually impaired providing a guide voice for the state of the traffic lights, the audio signal for the visually impaired adjusts the volume of the guide voice to the size of the volume corresponding to each time zone already set A master sound signal generator for generating and transmitting a volume control value for adjusting the volume of the guide voice; And a plurality of slave sound signals that receive the volume control value transmitted from the master sound signal and adjust the volume of the guide voice and then output the guide voice.

In one embodiment, the master sound signal includes a timer unit for checking a current time to determine a time zone that is already set; A volume control unit applying a volume control value corresponding to the time zone checked by the timer unit; A communication unit which transmits a volume control value applied from the volume control unit to the slave acoustic signal; A signal strength detector for detecting a signal strength for adjusting a volume of sound from a volume control value applied by the volume controller; A signal state obtaining unit obtaining the state of the traffic light; A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And a voice output unit configured to output the guide voice after adjusting the volume of the guide voice read by the signal guide information processor according to the control signal generated by the signal guide information processor.

In one embodiment, the slave sound signal unit is a communication unit for receiving a volume control value transmitted from the master sound signal; A signal strength detector for detecting a signal strength for adjusting a sound level from the volume control value received by the communication unit; A signal state obtaining unit obtaining the state of the traffic light; A signal guide information processor configured to read a guide voice corresponding to a traffic light state obtained by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And a voice output unit configured to output the guide voice after adjusting the volume of the guide voice read by the signal guide information processor according to the control signal generated by the signal guide information processor.

Among the embodiments, in the audio signal for the visually impaired to provide a guide voice for the state of the traffic lights, the audio signal for the visually impaired to each of the volume of the guide voice to the volume corresponding to each time zone that is already set A plurality of master sound signals for generating and transmitting a volume control value for adjusting the volume of the guide voice; And a plurality of slave sound signal receivers respectively receiving volume control values transmitted from the master sound signal signals and adjusting the volume of the guide sound and outputting the guide sound.

10. The apparatus of claim 9, wherein the master sound signal unit comprises: a timer unit for checking a current time to confirm a time zone already set; A volume control unit applying a volume control value corresponding to the time zone checked by the timer unit; A communication unit which transmits a volume control value applied from the volume control unit to a slave sound signal having a communication channel corresponding to itself; A signal strength detector for detecting a signal strength for adjusting a volume of sound from a volume control value applied by the volume controller; A signal state obtaining unit obtaining the state of the traffic light; A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And a voice output unit configured to output the guide voice after adjusting the volume of the guide voice read by the signal guide information processor according to the control signal generated by the signal guide information processor.

In an embodiment, the slave sound signal unit may include: a communication unit receiving a volume control value transmitted from a master sound signal device having a communication channel corresponding to itself; A signal strength detector for detecting a signal strength for adjusting a sound level from the volume control value received by the communication unit; A signal state obtaining unit obtaining the state of the traffic light; A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And a voice output unit configured to output the guide voice after adjusting the volume of the guide voice read by the signal guide information processor according to the control signal generated by the signal guide information processor.

The acoustic signal for the visually impaired according to an embodiment of the present invention automatically adjusts the size of the sound, so that complaints due to noise can be reduced, and the normal operation of the audio signal can contribute to the walking safety of the visually impaired. Can be.

1 is a block diagram illustrating a sound signal for the visually impaired according to an embodiment of the present invention.
FIG. 2 is an operation diagram illustrating a 1: N network type in which one timer module is applied to an intersection reference master acoustic signal in FIG. 1.
3 is an operation diagram illustrating a 1: 1 network type in which four timer modules are applied to an intersection reference master acoustic signal in FIG. 1.
FIG. 4 is an operation diagram illustrating a 1: 0 network type in which eight timer modules are applied to all the master sound signals based on the intersection in FIG. 1.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

Meanwhile, the meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions describing the relationship between the components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring to", should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

1 is a block diagram illustrating a sound signal for the visually impaired according to an embodiment of the present invention.

Referring to FIG. 1, the sound signal generator 100 for the visually impaired is implemented to perform a volume control function with a volume corresponding to a time zone which is already set. The master sound signal 110 and the slave ) Is made of an acoustic signal 120. At this time, the communication between the master sound signal 110 and the slave sound signal 120 uses 235.3000 (MHz) wireless communication.

The master acoustic signal 110 includes a timer 111, a volume controller 112, a communication unit 113, a signal strength detector 114, a signal state acquirer 115, a signal guide information processor 116, and a voice output unit. 117.

In addition, the master sound signal 110 transmits a volume control value for controlling the volume to the volume of the sound that is already set for each time zone to the slave sound signal 120 through the communication unit 113.

The timer unit 111 checks the current time, checks the time zone already set for adjusting the volume for each time zone, and informs the volume controller 112 of the checked time zone.

The volume controller 112 stores the volume control values for controlling the volume in the memory according to the sound volume already set for each time zone, and reads the volume control value corresponding to the time zone informed by the timer unit 111 to communicate with the communication unit. (113).

The communication unit 113 applies the volume control value applied from the volume control unit 112 to the signal strength detection unit 114, converts the volume control value into a wireless communication signal, and transmits the converted volume control value to the slave sound signal device 120.

The signal strength detector 114 checks the volume control value applied from the communication unit 113 to detect signal strength for adjusting the volume of the sound for each time zone, and applies the detected signal strength to the signal guide information processor 116. do.

The signal state acquisition unit 115 is connected to a traffic light installed at a place such as a pedestrian crossing to obtain a state of the traffic light (that is, status information on whether it is a green light or a red light), and the obtained traffic light state Is applied to the signal guide information processing unit 116.

The signal guide information processing unit 116 stores the traffic guide voice (that is, the guide voice for the traffic light state) and the additional guide voice in the memory, and then the traffic light state applied from the signal state acquirer 115. The voice output unit 117 reads the guide voice corresponding to the voice signal and applies it to the voice output unit 117 and adjusts the control signal to a volume corresponding thereto according to the signal strength applied from the signal strength detector 114. To apply.

The voice output unit 117 adjusts the volume of the guide voice applied from the signal guide information processor 116 according to the control signal applied from the signal guide information processor 116 and then outputs the adjusted guide voice through the speaker. Make it visually impaired.

The slave acoustic signal 120 includes a communication unit 121, a signal strength detector 122, a signal state acquisition unit 123, a signal guide information processor 124, and a voice output unit 125. Here, the communicator 121, the signal strength detector 122, the signal state acquirer 123, the signal guide information processor 124, and the voice output unit 125 may include the communicator 113, the signal strength detector 114, Since it is the same as the structure of the signal state acquisition part 115, the signal guide information processing part 116, and the audio output part 117, respectively, the description is abbreviate | omitted.

In addition, the slave sound signal 120 receives the volume control value transmitted from the master sound signal 110 through the communication unit 121 and adjusts the volume of the guide voice corresponding to the traffic light state, and then adjusts the adjusted guide voice. Output through speakers so that the visually impaired can hear.

On the other hand, the visually impaired sound signal 100 according to an embodiment of the present invention, for example, the master sound signal through the communication between the sound signal device 100 is set as a group of the eight sound signal signals 100 installed at the intersection By implementing the 110 to control the slave sound signal 120, the timer unit 111 and the volume control unit 112 are attached only to the master sound signal 110 to adjust the volume of each slave sound signal 120. give.

At this time, the mounting of the timer unit 111 to the intersection reference master acoustic signal 110 is 1: 1: network type (Type), 1: 1 network type, 1: 0 network type (that is, network It can be configured and operated in three ways.

If the volume control function needs to be added to the sound signal 100 that is already installed and operated instead of the new sound signal 100, the existing sound signal 100 may be configured in a 1: N network type and a 1: 1 network type. In addition, it is necessary to add the timer unit 111 to the hardware, and to upgrade the software of the signal guidance information processing unit 116, whereas in the 1: 0 network type, without the software upgrade of the signal guidance information processing unit 116, By adding the timer unit 111, it is possible to further apply the sound control function.

FIG. 2 is an operation diagram illustrating a 1: N network type in which one timer module is applied to an intersection reference master acoustic signal in FIG. 1.

As shown in FIG. 2, in the case where the volume control function is added to the sound signal 100 already installed and operating instead of the new sound signal 100, the master sound signal ( The timer unit 111 may be added to M1 in hardware and a software upgrade of the signal guidance information processor 116 may be performed to further apply the sound control function.

At this time, the master sound signal (M1) by transmitting the volume control value for controlling the volume to the size of the sound already set for each time zone through the communication unit 113 to each slave sound signal (S1 ~ S7), each slave sound Allows you to adjust the volume of the signal (S1 ~ S7).

3 is an operation diagram illustrating a 1: 1 network type in which four timer modules are applied to an intersection reference master acoustic signal in FIG. 1.

As shown in FIG. 3, in the case of adding a volume control function to the sound signal 100 already installed and operating instead of the new sound signal 100, each master sound signal is configured in a 1: 1 network type configuration. Software upgrades of the signal guidance information processing unit 116 are required at M1 to M4, respectively, and the timer control unit 111 may be added in hardware to further apply the sound control function.

At this time, each of the master sound signal (M1 ~ M4) transmits a volume control value for controlling the volume to the volume of the sound already set for each time zone through the communication unit 113 to each slave sound signal (S1 ~ S4). As a result, the volume of each slave sound signal S1 to S4 is adjusted. At this time, the master sound signal (M1 ~ M4) allows to adjust only the volume of each of the slave sound signal (S1 ~ S4) is formed through the communication unit 113 and the corresponding communication channel, respectively.

FIG. 4 is an operation diagram illustrating a 1: 0 network type in which eight timer modules are applied to all the master sound signals based on the intersection in FIG. 1.

As shown in FIG. 4, in the case where the volume control function is added to the sound signal signal 100 that is already installed and operated instead of the new sound signal signal signal 100, each master sound signal signal M1 is used in the 1: 0 network type. M-8) without the software upgrade of the signal guide information processing unit 116, it is possible to additionally apply the sound control function only by adding the timer unit 111 in hardware.

The following describes in more detail the operation of the acoustic signal for the blind according to an embodiment of the present invention.

First, the volume of the guidance voice corresponding to the state of the traffic light (i.e., green light or red light) can be set in three steps, for example. Daytime road noise level is +5 (dB). Second, the evening time zone is -10 (dB), which is the standard time zone of 21 o'clock to 24 o'clock. Third, the night time zone is 0 to 7 It is set to -20 (dB) which is a standard acoustic time zone standard until hour.

In this case, the above-described setting may be flexibly set according to a road or a surrounding situation of the point where the visually impaired sound signal 100 is installed, and in order to implement this, the sound band of the visually impaired sound signal 100 is different from time to time. The volume is controlled so as to be set, and together with the timer module 111, which is a timer module, the controller sets a time zone to be operated.

That is, the volume control unit 112 is a volume control value for controlling the guide voice at a volume of +5 (dB) from 7 o'clock to 21 o'clock, and a guide voice at a volume of -10 (dB) from 21 o'clock to 24 o'clock. The volume control value for controlling the control, and the volume control value for controlling the guide voice to a volume of -20 (dB) from 0 o'clock to 7 o'clock are set in advance and stored.

Thus, the timer unit 111 checks the current time and checks whether the current time is a time zone that is already set to adjust the volume for each time zone. In this case, if the current time is the set time zone, the corresponding time zone is checked. The volume controller 112 is informed.

Accordingly, the volume control unit 112 reads the volume control value corresponding to the time zone informed by the timer unit 111 from the memory and inputs it to the communication unit 113, and the communication unit 113 is input from the volume control unit 112. The volume control value is transmitted to the signal strength detector 114.

In this case, when there is a slave sound signal 120 to be sound-controlled together with the master sound signal 110, after the communication unit 113 performs a wireless communication connection with the slave sound signal 120, the volume controller 112. The volume control value input from the signal is converted into a wireless communication signal and transmitted to the slave sound signal device 120.

Then, the slave acoustic signal signal 120 receives the wireless communication signal transmitted from the master acoustic signal signal 110 through the communication unit 121 and checks the volume control value and transmits it to the signal strength detection unit 122.

Accordingly, the signal strength detectors 114 and 122 detect the signal strength for adjusting the volume of sound for each time zone by checking the volume control values applied from the communication units 113 and 121, and using the detected signal strength as signal guide information. Input to the processing units 116 and 124.

And the signal state acquisition unit (115, 123) connected to the traffic lights installed in places such as pedestrian crossing, etc. acquires the current traffic light status (ie, green or red light status information), and The obtained traffic light state is input to the signal guidance information processing units 116 and 124.

Accordingly, the signal guide information processing unit 116, 124 reads the guide voice corresponding to the traffic light state input from the signal state obtaining unit 115, 123 from the memory and applies it to the voice output units 117, 125. At the same time, a control signal for adjusting the volume corresponding to the signal strength input from the signal strength detectors 114 and 122 is generated and input to the voice output units 117 and 125.

Then, the voice output unit 117, 125 adjusts the volume of the guide voice input from the signal guide information processing unit 116, 124 according to the control signal input from the signal guide information processing unit 116, 124, and then adjusts the corresponding volume. The guided voice is output through the speaker so that the visually impaired can hear it.

As described above, the acoustic signal for the visually impaired according to an embodiment of the present invention, the sound signal for the specified time in order to prevent the night noise to be described in the bar item of the performance option of the "visual signal system for the visually impaired" It is possible to selectively use the function that adjusts the size. 'By setting the size of the sound for each time zone, it can contribute to the walking safety of the visually impaired by the normal operation of the sound signal.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

100: Acoustic signal for the blind
110: master sound signal
120: slave sound signal
111: timer unit
112: volume control unit
113, 121: communication unit
114, 122: signal strength detector
115, 123: signal state acquisition unit
116, 124: signal guidance information processing unit
117, 125: audio output unit

Claims (11)

In the sound signal for the visually impaired to provide a guide voice for the state of the traffic light, the sound signal for the visually impaired
Sound signal for the visually impaired including a master sound signal for adjusting the volume of the guide voice to the size of the volume corresponding to each time zone already set.
The method of claim 1, wherein the master sound signal
A timer unit for checking a current time to check a time zone already set;
A volume control unit applying a volume control value corresponding to the time zone checked by the timer unit;
A signal strength detector for detecting a signal strength for adjusting a volume of sound from a volume control value applied by the volume controller;
A signal state obtaining unit obtaining the state of the traffic light;
A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And
And a voice output unit configured to output a guide voice after adjusting a volume of the guide voice read by the signal guide information processing unit according to a control signal generated by the signal guide information processing unit.
The method of claim 2, wherein the master sound signal is
And a communication unit for transmitting the volume control value applied from the volume control unit to a slave sound signal unit.
The method of claim 1, wherein the visually impaired sound signal
And a slave sound signal receiving the volume control value for adjusting the volume of the guide voice from the master sound signal and outputting the guide voice after adjusting the volume of the guide voice.
The method of claim 4, wherein the slave sound signal is
A communication unit receiving a volume control value transmitted from the master acoustic signal;
A signal strength detector for detecting a signal strength for adjusting a sound level from the volume control value received by the communication unit;
A signal state obtaining unit obtaining the state of the traffic light;
A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And
And a voice output unit configured to output a guide voice after adjusting a volume of the guide voice read by the signal guide information processing unit according to a control signal generated by the signal guide information processing unit.
In the sound signal for the visually impaired to provide a guide voice for the state of the traffic light, the sound signal for the visually impaired
A master sound signal generator that adjusts the volume of the guide voice to a volume corresponding to a preset time zone, and generates and transmits a volume control value for adjusting the volume of the guide voice; And
And a plurality of slave sound signals for controlling the volume of the guide voice after receiving the volume control value transmitted from the master sound signal and outputting the guide voice.
The method of claim 6, wherein the master sound signal is
A timer unit for checking a current time to check a time zone already set;
A volume control unit applying a volume control value corresponding to the time zone checked by the timer unit;
A communication unit which transmits a volume control value applied from the volume control unit to the slave acoustic signal;
A signal strength detector for detecting a signal strength for adjusting a volume of sound from a volume control value applied by the volume controller;
A signal state obtaining unit obtaining the state of the traffic light;
A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And
And a voice output unit configured to output a guide voice after adjusting a volume of the guide voice read by the signal guide information processing unit according to a control signal generated by the signal guide information processing unit.
The method of claim 6, wherein the slave sound signal is
A communication unit receiving a volume control value transmitted from the master acoustic signal;
A signal strength detector for detecting a signal strength for adjusting a sound level from the volume control value received by the communication unit;
A signal state obtaining unit obtaining the state of the traffic light;
A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And
And a voice output unit configured to output a guide voice after adjusting a volume of the guide voice read by the signal guide information processing unit according to a control signal generated by the signal guide information processing unit.
In the sound signal for the visually impaired to provide a guide voice for the state of the traffic light, the sound signal for the visually impaired
A plurality of master sound signal generators that adjust the volume of the guide voice according to a volume corresponding to each preset time zone, and generate and transmit a volume control value for adjusting the volume of the guide voice; And
And a plurality of slave sound signals respectively receiving volume control values transmitted from the master sound signals and outputting guide voices after adjusting the volume of the guide voices.
10. The apparatus of claim 9, wherein the master acoustic signal is
A timer unit for checking a current time to check a time zone already set;
A volume control unit applying a volume control value corresponding to the time zone checked by the timer unit;
A communication unit which transmits a volume control value applied from the volume control unit to a slave sound signal having a communication channel corresponding to itself;
A signal strength detector for detecting a signal strength for adjusting a volume of sound from a volume control value applied by the volume controller;
A signal state obtaining unit obtaining the state of the traffic light;
A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And
And a voice output unit configured to output a guide voice after adjusting a volume of the guide voice read by the signal guide information processing unit according to a control signal generated by the signal guide information processing unit.
The method of claim 9, wherein the slave sound beacon
A communication unit receiving a volume control value transmitted from a master acoustic signal having a communication channel corresponding to itself;
A signal strength detector for detecting a signal strength for adjusting a sound level from the volume control value received by the communication unit;
A signal state obtaining unit obtaining the state of the traffic light;
A signal guide information processor configured to read a guide voice corresponding to a traffic light state acquired by the signal state acquirer and to generate a control signal for adjusting the volume corresponding to the signal strength detected by the signal strength detector; And
And a voice output unit configured to output a guide voice after adjusting a volume of the guide voice read by the signal guide information processing unit according to a control signal generated by the signal guide information processing unit.

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