KR200217026Y1 - sound generating system for the blind - Google Patents

Abstract

The present invention provides a unique code according to the installation position of the sound generator and a separate code for each type of sound generated so that the visually impaired can selectively control the generation of a desired sound at a desired position. A sound generating system for the visually impaired.

The sound generation system for the visually impaired of the present invention has a location code selection function for selecting a desired location code among all possible location codes and a sound type code selection function for selecting a desired sound type code among all possible sound type codes. A wireless controller that modulates a location code and a sound type code together and outputs it as a wireless control signal, and stores a magnetic location code and a sound type code corresponding to a sound in which magnetism can occur, and then includes a wireless control signal including the magnetic location code. And a sound generator that reads the received sound type code accompanying the magnetic location code and outputs a sound corresponding to the received sound type code when is received.

Description

Sound generating system for the blind

The present invention relates to a sound generation system for the visually impaired, in particular to give a unique code according to the installation location of the sound generator, and to give a separate code for each type of sound generated by the visually impaired It relates to a sound generation system for the visually impaired to selectively control the generation of sound.

In recent years, as our country enters the advanced society, social awareness for the disabled has been increasing day by day. As a part of this, in the state where sound generators which generate related guidance sounds are installed in props such as traffic lights, government offices, etc., these sound generators are considered to be controlled by a radio controller possessed by a visually impaired person.

1 is a perspective view schematically showing the appearance of a wireless controller in a conventional sound generation system for the visually impaired. As shown in FIG. 1, the wireless controller 10 in the conventional sound generation system for the visually impaired is largely instructed to generate a signal guide sound for each direction of east, west, south, and north based on a range of traffic lights. Two traffic light guide sound generating keys 12 and one position guide sound generating key 14 for instructing the generation of the position guide sound.

In the above-described configuration, when the visually impaired person presses the position guide sound generating key 14 provided in the wireless controller 10, the unique position guide sound pre-recorded and stored in all sound generators (not shown) existing within a predetermined area, For example, in the case of the Seoul office of Yeoksam-dong Patent Office, 'This is in front of the Seoul Office of Yeoksam-dong Patent Office', 'This is in front of Yeoksam-dong City Bank', 'This is in front of Yeoksam-dong Housing Bank.' And 'This is in front of the US Bank in Yeoksam-dong' will be output at the same time.

On the other hand, a visually impaired person must listen to a traffic light guidance sound when he / she reaches a crosswalk that must be crossed. In order for the visually impaired person to listen to a traffic light guidance sound for a crosswalk, a visually impaired person is required to match the location code. It also occurs when all the traffic light guide sound generating keys 12 need to be pressed. That is, the traffic light guide sound generating key 12 corresponding to the crosswalk to be crossed is checked by the sense of the distance of the traffic light guide sound generated by operating the traffic light guide sound generating key 12, and the thus confirmed traffic light guide sound generating key. By operating 12, for example, the 'green light is on. You can cross the road after you see the sound.

If the conventional sound generation system for the visually impaired is coded in the form of a code, it may be expressed as shown in Table 1 below.

code division One Traffic light guide point 1 2 Traffic light guide at point 2 3 Traffic light guide sound of point 3 4 Traffic light guide point 4 5 Location guide sound

As described above, according to the conventional sound generation system for the visually impaired, the unique code for each position is considered only in relation to the signal guide sound generation, and the position code is not considered in relation to the position guide sound generation. Therefore, not only the visually impaired person can receive accurate guidance by the positional guide sound output at the same time, but also the positional guide sound generated at the same time acts as a noise for the normal person.

On the other hand, in view of the above-described problems, when the visually impaired person enters a limited distance, that is, when the level of the received radio signal is more than a predetermined reference, the sound generator is designed to generate the sound guide so that the visually impaired In order to hear the guidance sound, it is cumbersome to continuously operate the position guidance sound generating key several times while going to the close distance of the sound generator.

In addition, four keys are provided on the wireless controller to generate the traffic light, so it is very difficult for the visually impaired to recognize the east, west, south and north. In order to listen to all the traffic light guidance sound generation key, such as the case of operating only a large number of keys, there is a problem that does not operate the key efficiently.

The present invention is to solve the above-described problems, by assigning a unique code according to the installation position of the sound generator, and by assigning a sound type code for each type of sound generated by the integrated operation to the desired position It is an object of the present invention to provide a sound generation system for the visually impaired to selectively control the generation of the desired sound.

Another object of the present invention is to generate a sound to induce the visually impaired to the position of the sound generator, and furthermore reduce the occurrence of noise factors by operating together with the location code in the state assigned a unique sound type code to the location guidance sound In addition, the present invention provides a sound generation system for the visually impaired to guide the visually impaired from afar.

Still another object of the present invention is to provide a sound generation system for the visually impaired, which can perform more various functions with fewer keys than those provided in the conventional wireless controller.

The sound generation system for the visually impaired according to the present invention for achieving the above object has a location code selection function for selecting a desired location code among all possible location codes and a sound type for selecting a desired sound type code among all possible sound type codes It has a code selection function, and stores a radio controller for modulating the position code and the sound type code together and outputs it as a radio control signal, and stores a magnetic location code and a sound type code corresponding to a sound that can be generated. And a sound generator for reading out a sound type code received with the position code and outputting a sound corresponding to the received sound type code when the radio control signal including the position code is received.

1 is a perspective view schematically showing the appearance of a wireless controller in a conventional sound generation system for the visually impaired;

Figure 2 is a perspective view schematically showing the appearance according to an embodiment of the radio controller in the sound generation system for the visually impaired of the present invention,

3 is a functional block diagram according to an embodiment of a radio controller in the sound generation system for the visually impaired according to the present invention;

Figure 4 is a functional block diagram according to an embodiment of the sound generator in the sound generation system for the visually impaired of the present invention,

FIG. 5 is a bird's eye view showing an example of a crossroad where various buildings and structures are installed in order to explain the operation of a sound generation system for the visually impaired according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: radio controller,

12: signal light guide key, 14: position guide sound key,

16: transmit antenna, 20: radio controller,

22: position guide sound generating key, 24: traffic light guide sound generating key,

26: position selection key, 31: control unit,

32: key input section, 34: power supply section,

36: low voltage detection unit, 38: shock detection unit,

40: wireless signal generator, 42: transmitting antenna,

44: timer, 46: sound type chord storage,

48: location code storage, 50: holding state storage,

52: selection position storage unit, 54: operation sound generator,

56: speaker,

60: sound generator, 61: control unit,

62: receiving antenna, 63: reception level determining unit,

64: wireless signal receiver, 66: waveform shaping unit,

67: operation level setting unit, 68: green traffic light detection unit,

70: red traffic light detection unit, 72: power supply unit,

74: sound data storage unit, 76: sound output unit,

78: speaker, 80: location code storage,

82: location code setting section, 84: sound type code storage section,

91-95: traffic light props, 91a-96a: sound generator,

96: public office, 97: blind,

98, 99: pedestrian crossing

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the sound generation system for the blind according to a preferred embodiment of the present invention.

Figure 2 is a perspective view schematically showing the appearance according to an embodiment of the radio controller in the sound generating system for the visually impaired according to the present invention. As shown in Fig. 2, the radio controller 20 according to an embodiment of the present invention has a position selection key 26, which is used to select each sound generator (described later) to which a unique code has been previously assigned, at a selected position. And a total of three keys assigned to the position guide sound generating key 22 for instructing the generation of the position guide voice and the signal light guide sound generating key 24 for instructing the generation of the traffic light guide sound for the selected position. . Each of the keys 22, 24, and 26 may be different in size so that the visually impaired person can recognize only the size thereof. In addition, by embossing or engraving a mark that can be perceived as tactile, for example, Braille, the visually impaired person can easily grasp the function of the key.

Figure 3 is a functional block diagram according to an embodiment of a radio controller for the visually impaired sound generation system of the present invention. As shown in FIG. 3, the wireless controller 20 for the sound generation system for the visually impaired according to the present invention includes a power supply unit 34 made of an independent power source such as a battery, a position selection, a position guide sound generation, and a traffic light guide sound generation key. A key input unit 32 for inputting signals, a selection position storage unit 52 for storing a position code of a currently selected sound generator, a position code storage unit 48 for storing a position code for each selection position, and a location guide sound And a sound type code storage unit 46 for storing sound type codes capable of controlling the generation of signals such as traffic lights and guide lights, and modulating the selected position code and sound type codes to predetermined frequencies and outputting them as radio control signals through the antenna 42. The overall operation of the operation sound generator 54 and the speaker 56 and the wireless controller 20 for outputting various operation states of the wireless signal generator 40 and the wireless controller 20 to different sounds. It comprises a control unit 31 for controlling.

In the above-described configuration, a total of five position codes that can be selected by the position selection key 26 are required in the case of a five-way crosswalk which is a very complicated form, and in addition, codes for selecting public offices and the like that are not related to the crosswalk are added together. It is preferable to become at least six or more. In addition, the location code selection is performed by the control unit 31 in the predetermined position storage unit 52 among the position codes stored in the predetermined order in the position code storage unit 48 whenever a one-time input of the position selection key signal is received. This can be done by reading the location code following the code and updating the contents of the selection location storage 52.

On the other hand, when it is necessary to repeatedly listen to the sound contents of the sound generator 20 in the same position, it is necessary to hold the selected current position. Thus, the holding or releasing operation of the selected position is made longer than the normal key operation time. It may be performed by whether or not the position selection key 26 is pressed for a predetermined reference time, for example, 2-3 seconds or more. To this end, in the wireless controller 20 of the present invention, the timer 44 is set for each operation of the position selection key 26 and outputs a holding related signal according to whether the reference time has elapsed, that is, a holding signal or a holding release signal. And a holding state storage unit 50 for storing the holding state. In this case, when the position selection key 26 is pressed for a time shorter than the reference time, the control unit 31 next to the contents of the selection position storage unit 48 based on the contents stored in the holding state storage unit 50. The wireless control signal is generated based on the stored position codes in the state of changing or holding the position codes in order.

That is, when the position guide sound generation key signal is input while the position code of the sound generator by the position selection key 26 is selected, the control unit 31 uses the sound type code storage unit 46 for the position guide voice. The code stored in the code is read and stored and output to the wireless signal generator 40 together with the location code. The wireless signal generator 40 modulates the provided location code and sound type code to a predetermined frequency to control the wireless control signal. After the generation is output to the air through the transmission antenna 42. Then, when the traffic light guide sound generation key signal is input while the position code of the sound generator by the position selection key 26 is selected, the control unit 31 assigns the sound type code storage unit 46 for the traffic light guide sound. The stored code is read and output to the wireless signal generator 40 together with the location code.

Meanwhile, the wireless controller 20 may output a predetermined pattern of location guidance sounds, for example, a 'ding' sound generated at an interval of 0.5 seconds, for 10 seconds by the wireless controller 20. For example, it may be generated by the operation of the position selection key 26. In this case, with the unique sound type code assigned to the position-induced sound and stored in advance in the sound type code storage unit 46, the control unit 31 selects the currently selected position code and the sound every time the position selection key signal is input. By providing the kind code together with the wireless signal generator 40, the position induced sound may be generated in the sound generator. Each time the position selection key 26 is input, a sound corresponding to the currently selected position code, for example, 'beep' for the first sound generator and 'beep' for the second sound generator, etc. It is desirable to make it easier to recognize the visually impaired location code by causing the speaker 56 to output a number of beeping intermittent sounds that match the number of generators. In FIG. 3, reference numeral 36 denotes a low voltage detection unit for detecting a low voltage state of the power supply unit 34, and 38 denotes a shock detection unit for detecting a shock when a predetermined value or more is applied to the wireless controller 20.

Figure 4 is a functional block diagram according to an embodiment of a sound generator in the sound generating system for the visually impaired according to the present invention. In the sound generation system for the visually impaired according to the present invention, the sound generator 60 may be installed at a main point in which a traffic light is installed, for example, a traffic light prop or a government office. There may be a traffic light guide sound generator, etc. In the present embodiment, they will be described as being integrally installed in one main body. As shown in FIG. 4, the visually impaired sound generator 60 of the present invention has a signal captured by a receiving antenna 62 and a receiving antenna 62 for capturing a radio control signal output from the radio controller 20. Receiving and demodulating the waveform of the signal demodulated by the radio signal receiving unit 64, the waveform shaping unit 66 provided to the control unit 61 to be described later, the power supply unit 72, the green signal Acoustic data for storing various sounds required such as a green traffic light detection unit 68 for detecting lighting, a red traffic light detection unit 70 for detecting red lighting, and a traffic light guide sound, a position guide sound, or a location guidance sound. A storage type 74, a sound type code storage unit 84 for storing a unique code for identifying a traffic light guide sound, a location guide sound or a location guidance sound, a location code storage unit 80 for storing a location code of its own; Location code Position code setting unit 82 for setting the code data stored in the unit 80, the control unit 61 for controlling the overall operation of the sound generator 60, the sound data storage unit 74 under the control of the control unit 61 And a speaker 78 for converting the electrical energy provided from the sound output unit 76 into mechanical energy and generating sound by receiving digital sound data required from the digital signal. .

In the above-described configuration, it is convenient for the visually impaired to operate at a longer distance than the position guidance sound in the case of the position guidance sound, and in view of this, the reception level determination unit 63 and the position determining the reception level of the radio control signal are performed. If the operation level setting unit 67 is further provided to set the minimum operation level that is the reference of the generation of the guide sound and the position guidance sound, and the operation level is changed according to the distance situation, etc., more convenient and flexible operation will be possible.

Table 2 below shows the position code and the sound type code that can be given by each distance, etc. according to the present invention by way of example.

division Location code Sound type chord 1 point 2 points 3 points 4 points 5 points 6 points Position induction Location guide sound Traffic light 2 distance One 2 - - - - a b c 3 distance One 2 3 - - - a b c 4 distance One 2 3 4 - - a b c 5th Street One 2 3 4 5 - a b c Offices - - - - - 6 a b -

As can be seen from Table 2, in the case of the sound generator installed in the government office, it is preferable to give a number other than the code number that can be given to the traffic light, and it is understood that the traffic light guide sound is unnecessary.

FIG. 5 is a bird's eye view showing an example of a crossroad where various buildings and structures are installed in order to explain the operation of a sound generation system for the visually impaired according to the present invention. In Fig. 5, reference numerals 91-95 denote traffic light props, reference numerals 91a-95a denote acoustic generators installed in place of respective traffic light props 91-95, and reference numeral 96a is installed in public office 96. Represents a sound generator. In the above-described configuration, for example, the position code storage unit of the sound generator 91 has a position code '1', the position code storage units of the sound generators 92 and 93 have a position code '2', The position codes '3' are stored in the position code storage units of the generators 94 and 95, and the position guide sound, the traffic light guide sound, and the position guide sound are stored in the sound data storage units of all the sound generators 91-95. Assume this is stored. As can be seen in this assumption, the sound generators 92, 93 facing the crosswalk 98 operate in pairs, and the sound generators 94, facing the crosswalk 99, ( 95) also works in a pair, the reason for the design is to allow the visually impaired (97) to more accurately recognize the direction crossing when crossing the crosswalk. However, the contents of the position guide sound will be different even if the sound generator is given the same position code.

In this state, when the blind person 97 crosses the pedestrian crossing 98 and the pedestrian crossing 99 at the point where it is shown, and proceeds with the example of seeing the business in the public office 96, the description is different. Unless it is visually impaired (97) is the subject. In this situation, the first thing that the visually impaired 97 should do is go to the nearest sound generator and listen to the guidance sound for the location. To this end, the visually impaired 97 manipulates the position selection key 26 of the wireless controller 20 to be carried out once or several times, so that the position-induced sound generated by the sound generator corresponding to each position code, that is, the 'ding' sound By the sense of distance, the closest distance, that is, the position code corresponding to the sound generator 91a installed in the traffic light prop 91a is checked. In this process, as described above, the 'beep' sound for position code identification output from the wireless controller 20 may be helpful.

In this way, after confirming that the position code of the closest sound generator 91a is '1' by the short sound, the manipulator selects the position selection key 26 until the short sound of the 'beep' sound is heard again. Press and hold the position selection key 26 again for 2-3 seconds to hold the current position. In this case, the position code '1' is stored in the selected position storage unit 52 of the wireless controller 20. Next, whenever the output of the position guidance sound generated by the sound generator 91a is cut off, by pressing the position selection key 26 to continuously generate the position guidance sound, the sound generator 91a is installed with the help of the position guidance sound. A traffic light prop 91 is reached.

Next, the position guide sound generating key 22 is operated to hear the guide voice for the position where the sound generator 91a is installed, since the visually impaired 97 must cross the crosswalk 98 in the above home. The guide sound output from the sound generator 91a confirms that it is not a crosswalk to be crossed and searches for another sound generator. To do this, press and hold the position selection key for 2 to 3 seconds to release the holding state for the current position and then use the position selection key 26 and the position guidance sound generating key 22 in the same manner as when the sound generator 91a is found. By manipulating and finally receiving a sound guide of the location of the sound generator 92a, it is confirmed that it is a crosswalk 98 to be crossed. Next, in this state (holding to the current position), you will be informed of the traffic light condition for this crosswalk (98) by operating the traffic light guide key (24), for example 'green light on. It is OK to cross. 'The guide sound is output from the sound generator (92a, 93a) and crosses the crosswalk (98).

Again, in the same manner as described above, the position selection key 26 and the position guide sound generating key 22 are operated to search for another sound generator, and while the position is held, the position is guided by sound and the crosswalk in front ( 99) crosses the crosswalk 99 when the green light guide sound is output by manipulating the traffic light guide sound generating key 24 in the state confirming that he should cross next.

Finally, in the same manner as described above to find the sound generator of the closest distance by repeating the process of receiving the location guidance by voice, the position of the public office (96) can be seen by voice to see the business.

The sound generation system for the visually impaired of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the range allowed by the technical idea of the present invention. For example, unlike the embodiment described above, a dedicated key for generating a holding related signal may be provided separately. In this case, the timer may be unnecessary in FIG. 3. In addition, the type and occurrence pattern of the position induced sound, the number and coding schemes of the position code and the sound type code may be changed as appropriate. In addition, the timer provided in the wireless controller may be implemented in a software manner.

According to the sound generation system for the visually impaired according to the present invention as described above, a unique code is assigned according to the installation position of the sound generator, and a sound type code is also provided for each type of generated sound to operate visually. There is a convenience that allows the disabled to selectively control the generation of the desired sound for the desired location.

In addition, it is possible to perform more various functions with fewer keys than those provided in the conventional wireless controller, and to reduce the occurrence of noise factors and generate the visually impaired by generating sound that induces visual impairment to the position of the sound generator. It is effective to guide from far away.

Claims (15)

A position code selection function for selecting a desired position code among all possible position codes and a sound type code selection function for selecting a desired sound type code among all possible sound type codes, and the position code and the sound type code together A radio controller for modulating and outputting a radio control signal; A sound type code corresponding to a magnetic position code and a sound that can be generated is stored, and when the wireless control signal including the magnetic position code is received, the sound type code received along with the position code is read and received. And a sound generator for outputting a sound corresponding to a sound type code. The sound generation system of claim 1, wherein the type of sound controllable by the wireless controller includes a location guide sound and a traffic light guide sound. 3. The wireless controller of claim 2, wherein the wireless controller comprises a position guide sound generating key for selecting the position guide sound, a traffic light guide sound generating key for selecting the traffic light guide sound, and a position selection key for selecting a desired position code. A sound generation system for the visually impaired. The method of claim 2, wherein the wireless controller is A key input unit having a location code selection key for selecting a desired location code, a location guide sound generation key for selecting a location guide sound, and a traffic light guide sound generation key for selecting a traffic light guide sound; A location code storage for storing all possible location codes; A sound type code storage unit for storing all possible sound type codes; A selection location storage unit for storing the currently selected location code; A wireless control signal output unit for outputting a wireless control signal by modulating a currently selected location code and a sound type code; It includes a control unit for collectively controlling the operation of each unit, The determination of the currently selected position code in the controller is performed after the position code stored in the selection position storage unit among the position codes stored in the predetermined order in the position code storage unit each time a one-time input of the position selection key signal is received. A sound generation system for the visually impaired, characterized in that performed by reading a location code. The sound generation system of claim 4, wherein the location selection key, the location guide sound generating key, and the traffic light guide sound generating key are all different in size. The sound generating system for the visually impaired according to claim 4 or 5, wherein an embossed mark for function guide is formed on or around the position selection key, the position guidance sound generating key, and the traffic light guide sound generating key. . The system of claim 4, wherein the wireless controller further comprises a holding state storage unit configured to store whether the currently selected location code is held. 8. The system of claim 7, wherein the wireless controller inverts the stored contents of the holding state storage unit whenever there is a key input exceeding a predetermined reference time of the position selection key. The system of claim 7, wherein the wireless controller further comprises a dedicated holding key for repeatedly inputting a holding and holding release key signal at each operation. The sound generation system of claim 4, wherein the wireless controller further comprises an operation sound output unit configured to output a sound for identifying a currently selected location code every time the location selection key is operated. The sound generator according to claim 4, wherein the sound generator is a traffic light guide sound generator. A wireless signal receiver for receiving a radio control signal, demodulating and shaping a waveform, and outputting a location code and a sound type code included in the wireless control signal; A traffic light state detection unit detecting a lighting state of the traffic light; A sound data storage unit for storing the traffic light guide sound data; A sound output unit for outputting a traffic light guide sound; A location code storage unit for storing a location code of the self; A location code setting unit for setting contents of the location code storage unit; A sound type code storage unit for storing a sound type code that can be generated; The location code provided by the wireless signal receiver is compared with the location code stored in the location code storage unit to determine whether the location code is a magnetic location code. And a control unit for reading and outputting the sound output unit. The sound generator of claim 4, wherein the sound generator is a position guide sound generator. A wireless signal receiver for receiving a radio control signal, demodulating and shaping a waveform, and outputting a location code and a sound type code included in the wireless control signal; A sound data storage for storing location guide sound data; A sound output unit configured to output a location guide sound; A location code storage unit for storing a location code of the self; A location code setting unit for setting contents of the location code storage unit; A sound type code storage unit for storing a sound type code that can be generated; The location code provided by the wireless signal receiver is compared with the location code stored in the location code storage unit to determine whether the location code is a magnetic location code. And a control unit for reading and outputting through the sound output means. The method of claim 11 or 12, wherein the sound type code that can be generated in the wireless controller further comprises a position-induced sound code for inducing the position of the sound generator, The radio controller outputs the sound type code as a radio control signal accompanying the position code at every operation of the signal selection key. The sound controller further comprises a position-induced sound storage unit for storing the position-induced sound data. The apparatus of claim 13, wherein the sound generator comprises: a reception level determination unit determining a reception level of a radio control signal received through the radio signal receiver; And an operation level setting unit for setting a minimum operation level for generating the position guidance sound or the position guidance sound. The controller of the sound generator controls whether the position guidance sound or the position guide sound is generated based on a setting level of the operation level setting unit and a reception level determined by the reception level determination unit. Generation system. The sound generation system of claim 14, wherein the operation setting level of the position guidance sound is set lower than the operation setting level of the position guidance sound.