KR101829756B1 - Smart earplug having gas sensor and announcement transfering system using thesame - Google Patents

Abstract

The present invention relates to a smart earplug having a gas sensing sensor and a notification message delivery system using the same.
According to an aspect of the present invention, there is provided a smart earplug capable of being worn on a user's double ear, comprising: a microphone for receiving an external sound including an external sound and external noise or an audio signal of the user and outputting the audio signal; An audio filter for selecting a predetermined frequency band including a voice frequency range of a person from an audio signal output from the microphone and outputting the selected frequency band; An amplifying unit for amplifying the selected output audio signal; An output unit for outputting an audio signal amplified by the amplifying unit; A gas detection sensor for sensing the surrounding gas; A control unit for comparing a result detected by the gas sensor with a preset value to determine whether or not a dangerous situation exists; And a danger warning unit for outputting a danger signal to the outside according to the determination result of the control unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a smart earplug having a gas sensing sensor,

The present invention relates to a smart earplug having a gas sensing sensor and a notification message delivery system using the same.

Generally, workers use ear plugs with simple functions in order to prevent or reduce various kinds of noises generated in factories and work places, and to prevent industrial accidents such as hearing loss of workers.

Such simple ear plugs have the effect of blocking the generated noise, but they also interfere with the dialogue between the workers, making it impossible to communicate necessary during the work, causing inconveniences such as signing or writing on paper, The lack of communication results in a decrease in efficiency of work and a bigger problem.

In addition, some workers do not wear earplugs because of the inconvenience caused by the wear of the earplugs and the inconvenience of not being able to hear a conversation sound, which causes the loss of the enterprise and the individual due to the hearing loss of the workers.

On the other hand, there is a risk of serious safety accidents such as a sudden drop in oxygen concentration due to the influence of the work or leakage of dangerous gas. However, in most cases, on-site workers are not aware of the danger until a direct accident occurs and the evacuation order is issued. Therefore, accidents involving many human casualties are frequently occurring.

Korean Patent Publication No. 10-2015-0021290

In an embodiment of the present invention, when the earplug is worn at a work site or an industrial site where noise is generated, both noise and conversation are blocked, thereby making it difficult to communicate among workers, preventing productivity and industrial accidents due to lack of communication And a notification message delivery system using the same.

In addition, one embodiment of the present invention relates to a smart earplug with a gas sensor capable of solving the problem that noise field workers do not wear a soundproof earplug due to difficulty of communication and inconvenience of wearing while knowing the risk of hearing loss, and And to provide a notification message delivery system using the same.

In addition, one embodiment of the present invention provides a smart ear plug with a gas sensing sensor that allows easy communication between workers while wearing only when wearing, And to provide the above objects.

In addition, one embodiment of the present invention provides a smart earplug with a gas sensing sensor that performs a notification function to a specific group or related worker at a noise site through a wireless communication function, And a message delivery system.

It is another object of the present invention to provide a smart earplug having a gas detection sensor capable of reducing the casualties caused by a gas-related safety accident that may occur in a worksite, and a notification message delivery system using the same.

According to an aspect of the present invention, there is provided a smart earplug capable of being worn on a user's double ear, comprising: a microphone for receiving an external sound including an external sound and external noise or an audio signal of the user and outputting the audio signal; An audio filter for selecting a predetermined frequency band including a voice frequency range of a person from an audio signal output from the microphone and outputting the selected frequency band; An amplifying unit for amplifying the selected output audio signal; An output unit for outputting an audio signal amplified by the amplifying unit; A gas detection sensor for sensing the surrounding gas; A control unit for comparing a result detected by the gas sensor with a preset value to determine whether or not a dangerous situation exists; And a danger warning unit for outputting a danger signal to the outside according to the determination result of the control unit.

Also, the gas sensing sensor senses the concentration of oxygen in the air, and the controller may provide a smart earplug having a gas sensing sensor for determining a dangerous situation when it is determined that the oxygen concentration is lower than a predetermined value.

Further, the gas sensing sensor senses the concentration of at least one of noxious gas and explosive gas in the air, and the control unit determines that the concentration is in a dangerous state when it is determined that the concentration is lower than a predetermined value, a smart earplug .

In addition, the predetermined value may be provided with a smart earplug having a gas sensing sensor that is lower or higher than a human perceivable limit value.

Further, the danger warning section may be provided with a smart ear plug having a gas detection sensor including at least one of a light emitting means for outputting a visual danger signal and a speaker for outputting an audible danger signal.

The controller may be provided with a smart earplug having a gas sensor for informing a wearer of a dangerous situation through the output unit when the dangerous situation is determined.

The portable terminal further includes a communication unit for communicating with at least one of at least one other user's smart earplug or server, and the control unit transmits a result of the risk situation determination to the smart earplug or the server of the other user through the communication unit And a gas sensing sensor for outputting a dangerous situation due to gas detection transmitted through the communication unit through the danger warning unit or the output unit.

According to one aspect of the present invention, there is provided a method of making a device, comprising: at least one smart earplug; An administrator terminal for generating a notification message; And a server for receiving the notification message from the administrator terminal and transmitting a voice signal associated with the notification message to a predetermined smart earplug among the one or more smart earplugs, A notification message delivery system using a smart earplug having a gas detection sensor for delivering a danger signal according to at least one other smart earplug can be provided.

Also, the manager terminal may be one of the smart ear plugs or a manager PC or a mobile terminal that is provided independently, and a notification message delivery system using a smart ear plug having a gas sensor may be provided.

Also, a notification message delivery system using a smart ear plug having a gas sensing sensor may be provided, wherein the predetermined smart earplug receiving the voice signal from the server is based on the information input by the administrator terminal.

According to the embodiment of the present invention, when the earplug is worn in a workplace or an industrial site where noise is generated, both noise and conversation are blocked, thereby making it difficult for workers to communicate with each other. Can be prevented.

In addition, according to the embodiment of the present invention, it is possible to solve the problem that the noise field workers do not wear the ear muffs due to difficulty of communication and inconvenience of wearing while knowing the risk of hearing loss.

In addition, according to the embodiment of the present invention, it is possible to communicate between workers while shielding only noise at the time of wearing, and it is advantageous that the ear is comfortable even if it is used for a long time through ergonomic design.

In addition, according to an embodiment of the present invention, it is possible to perform a notification function to a specific group or related workers at a noise site through a wireless communication function, or to communicate with each other conveniently.

In addition, according to one embodiment of the present invention, it is possible to reduce personal injury due to a gas-related safety accident that may occur at a work site.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a front view of a smart earplug having a gas sensing sensor according to an embodiment of the invention. FIG.
1B is a perspective view illustrating a smart earplug with a gas sensing sensor according to an embodiment of the present invention.
2 is a block diagram illustrating components of a smart earplug having a gas sensing sensor according to an embodiment of the present invention.
3 is a side cross-sectional view illustrating a microphone of a smart earplug having a gas sensing sensor according to an embodiment of the present invention.
4 is a cross-sectional side view showing another example of a microphone of a smart earplug having a gas sensing sensor according to an embodiment of the present invention.
5 is a side cross-sectional view illustrating the output of a smart earplug with a gas sensing sensor in accordance with an embodiment of the present invention.
6 is a block schematic diagram of a smart earplug wireless communication system having a gas sensing sensor in accordance with an embodiment of the present invention.
7 is a front view showing an example of a smart earplug according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The configuration of the present invention and the operation and effect thereof will be clearly understood through the following detailed description.

FIG. 1A is a front view of a smart earplug having a gas sensing sensor according to an embodiment of the present invention, and FIG. 1B is a perspective view illustrating a smart earplug having a gas sensing sensor according to an embodiment of the present invention. 2 is a block diagram illustrating components of a smart earplug having a gas sensing sensor according to an embodiment of the present invention.

1 and 2, a smart earplug 100 having a gas sensing sensor according to an embodiment of the present invention includes a connection part 111, a hanger 112, a housing 120, an ear pad 130, An audio filter 150, an amplification unit 160, an output unit 170, a gas detection sensor 185, and a danger warning unit 186.

The hanger 100 is connected to both ends of the connection part 111 and is positioned behind the ear so that the ear pad 130 can be fixed to the ear. (112). For example, the connection portion 111 may be formed in a flexible line or band shape, and the hanger 112 may be made of a flexible plastic or rubber material that can be flexibly worn on the ear, The housing 120 and the ear pad 130 are brought into close contact with the side of the user's ear through the hanger 112 after wearing, so that the wearing comfort can be improved as compared with a conventional ear plug. Here, the connection portion 111 may be used as a means for transmitting electrical signals and electric power. For example, the power supply unit 210 may be provided on only one of the housings 210 on both sides and the power supply unit 210 may be supplied with electricity through the connection unit 111 on the other side.

The housing 120 is provided on the side of the ear pad 130 so as to be positioned on the side of the ear of the user. The housing 120 includes an output unit 170, a power supply unit 210, and a PCB 191, And so on.

The ear pad 130 is provided to each of the housings 120 so as to face the ear of the user and is closely attached to the ear or the ear so that the output unit 170 is exposed to thereby prevent noise from entering the ear of the user together with the housing 120 And may have a structure in which the output portion 170 protrudes from the housing 120 to closely adhere to the ear or the ear canal.

The microphone 140 receives a sound from the outside and outputs the sound as an audio signal. The microphone 140 may be installed in the two side housings 120 as an example. That is, they may be arranged to correspond to the respective side ears of the user.

3, the microphone 140 includes, for example, a collection tube 141 installed to be connected to the outside of the housing 120 for receiving or collecting sound, A front side plate 142 and a rear side plate 143 that are spaced apart from each other and power is applied to the front side plate 142 and the rear side plate 143 and a front plate 142 And a circuit unit 144 for outputting an electric signal converted by the rear side plate 143 as an audio signal. Here, the collection pipe 141 is fixed to the inside of the housing 120, and may be connected to the outside through a hole (not shown) formed in the housing 120. The front side plate 142 and the rear side plate 143 may be made of a plate of a conductive material and may be installed inside the collection tube 141 so as to be vibrated by the circuit portion 144.

4, the microphone 240 may include a membrane 241 positioned to be external to the housing 120 (shown in FIG. 1) and receiving or collecting sound, as well as an outer circumferential surface 241 of the membrane 241, A coil 242 which is wound around the coil 242 and outputs an electric signal by the vibration of the membrane 241 in the magnetic field as an audio signal; And the second permanent magnets 243 and 244 and the elastic connecting portion 245 for elastically supporting the membrane 241 so that the membrane 241 vibrates by receiving sound. The elastic connecting portion 245 may be formed of a material having elasticity as an example, or may have a structure capable of providing elasticity such as a wrinkle structure. The elastic connecting portion 245 may be fixed to the main body 246 in a state of being connected to the membrane 241 . The membrane 241 is located inside the housing 120 and is connected to the outside through a hole (not shown) formed in the housing 120 so that sound transmitted from the outside can be received.

Here, the microphone 240 may be installed in both the housing 120 on both sides.

Referring again to FIG. 2, the audio filter 150 performs a function of filtering a noise signal band from an audio signal output from the microphone 140 to selectively output a voice signal band.

In general, the range of human voice frequency or audible frequency is 200 Hz to 3,500 Hz. Accordingly, when the audio filter 150 passes only the frequency band of, for example, 3,500 Hz or 4,000 Hz in order to select and output the human voice frequency band, a range of 3,500 Hz or 4,000 Hz or less is selected as the voice frequency band, A high frequency band of 3,500 Hz or more than 4,000 Hz can be filtered or noise canceled. In this case, in order to separate a signal corresponding to a noise and a signal corresponding to a noise from an audio signal, a low pass filter which passes only a low frequency range may be used, and an undesired frequency band, So that only the voice signal band can be transmitted to the amplification unit 160.

It is also possible to use a band pass filter instead of the low pass filter to pass only the frequency band within 200 Hz to 3,500 Hz or near this range, and the frequency band for selective output is, for example, 200 Hz to 4,000 Hz, 250Hz ~ 3,500Hz or 250Hz ~ 3,000Hz.

Here, the audio filter 150 may be composed of a digital filter or an analog filter. In particular, in the case of a digital filter, the characteristics of the filter can be precisely adjusted by software, and a high-precision filter can be implemented.

In order to cancel the audio signal only in the range of the frequency band determined by the noise band, the audio filter 150 first detects the audio signal in the range of the noise band, and then outputs the opposite signal inverted signal or antiphase signal as an interference signal and adding the original signal and the interference signal in the range of the noise band to cancel only the signal in the range of the noise band.

The amplification unit 160 amplifies the voice signal output from the audio filter 150 and transmits the amplified voice signal to the output unit 170, as shown in FIG. The output unit 170 is provided to be exposed from the housing 120 to output a voice to the user's ear according to the voice signal amplified by the amplification unit 160.

The output unit 170 may have a driver unit structure as shown in Fig. 5 as an example. 5, the diaphragm 171 corresponding to the diaphragm may be installed on the main body 175 so as to be vibrated toward the user's ear side, and may be mounted on the armature 172 mounted on the main body 175, A permanent magnet 174 may be provided to apply a magnetic field to the coil 173 side and the diaphragm 171 may be provided through a coil 173 to which an electric signal is applied in a magnetic field, So that the sound is outputted to the user's ear. It is needless to say that various known speakers may be used in addition to the speaker structure.

The switch 181 may be provided in the housing 120 to control the reception of sound through the microphone 140 and the output of sound through the output unit 170. For example, And a switch that is provided to protrude from the housing 120 to turn on / off the power supplied from the power supply unit 210 to the power supply unit 210.

Meanwhile, the switch 181 may be provided to protrude from the housing 120, and may be configured to output an operation signal to the controller 180 as an example different from the switch. In this case, the control unit 180 may operate the microphone 140 and the amplification unit 160 during the first set time through the switch 181. A timer 182 may be provided for counting the first set time period. The timer 182 counts a first set time, e.g., 1 minute to 5 minutes, As a signal.

As another example, the controller 180 operates the microphone 140 and the amplification unit 160 through the on / off operation of the switch 181, The operation of the microphone 140 and the amplification unit 160 can be stopped when a voice signal is not output for a predetermined period of time. Also, the timer 182 may count the second set time, e.g., 30 seconds to 3 minutes, and transmit the second set time to the control unit 180 as a signal.

The control unit 180 may sense the number of consecutive operations of the switch 181 and implement the function of automatically adjusting the first and second set times based on the number of operations and the interval of the switch 181. [ The controller 180 may include a part or all of the PCB 191 and may be installed inside the housing 120 as an example. In addition, the power supply unit 190 may be installed in the housing 120 as a battery, for example, and may supply power necessary for operation.

The communication unit 183 includes a communication module for transmitting and receiving a user's voice signal through a communication method such as unicast, multicast, or broadcast. In the case of voice signal transmission, multicast can be used when a recipient is a specific person, multicast when a recipient is a specific group, and broadcasting when all recipients can communicate with the recipient.

The communication unit 183 may include, for example, a communication module that supports at least one of a Bluetooth, IEEE 802.11, or UWB communication protocol. The smart earplug 100 receives important notifications or voice messages from the central server through the communication unit 183 and outputs a notification through the output unit 170. [

In addition, the control unit 180 can transmit the voice signal of the user through the communication unit 183 to a plurality of users within a communicable range, It is also possible to transmit voice signals only to the smart earplugs in the group by cast communication, and to designate all smart earplugs within the communicable range as recipients and perform voice signal transmission to all smart earplugs through broadcast communication.

When the dangerous gas is detected through the gas sensing sensor 185, the smart ear cap 100 informs the central server of the detection of the dangerous gas through the communication unit 183, The detection of gas can be received.

In addition, it may further include a transmission mode switch 184 for activating a transmission mode operation for transmitting a user's voice signal in one example. When the transmission mode switch 184 is turned off, it operates in a normal mode for receiving external voice or noise. When the transmission mode switch 184 is turned on, the operation of the transmission mode is activated The user's voice signal can be received via the microphone 140 and the voice signal can be transmitted to the predetermined recipient, i.e., other smart ear plugs, via the communication unit 183. [ In this case, the user's voice signal can also remove the noise through the audio filter 150 and the amplification unit 160 as in the case of processing the external sound, and in the case of the voice reception by the user, It is also possible to transmit the signal directly to the control unit 180 without processing the audio filter 150 or the amplification unit 160 and transmit the signal.

For example, in order for a user to transmit his or her voice to a different pre-set smart earplug during a task, the user may turn on the transmission mode switch 184 to activate the transmission mode operation, And other users can directly hear the voice of another user by clearly outputting the voice signal directly received through the communication unit 183 through the output unit 170 and listening to the voice of another user clearly and clearly .

Meanwhile, the smart ear cap 100 may be provided with a gas detection sensor 185 capable of sensing the gas around the wearer wearing the smart ear cap 100. The gas sensing sensor 185 may be installed in the housing 120 and may be electrically connected to the PCT 191 to transmit a sensing signal. In this embodiment, the gas sensor 185 is installed directly on the PCT 191, but the concept of the present invention is not limited thereto. In addition, a part of the gas sensing sensor 185 may be installed to be exposed to the outside or may be accommodated inside the housing 120. In the latter case, a gas communication path (not shown) may be provided in the housing 120 so that gas can be introduced from the outside.

In addition, the smart earplug 100 may include a danger warning portion 186 that can send a danger signal to the outside. The danger warning section 186 is a device for perceiving a danger to the surrounding people. The danger warning section 186 is a lighting device such as an LED that emits light so as to visually recognize a danger, A sounding device such as a speaker, etc., which can be provided. Of course, both visual and auditory notification may be provided.

It is preferable that the danger warning unit 186 is exposed to the outside of the housing 120 so that the surrounding user can recognize the danger signal. For example, as shown in the drawing, the danger warning portion 186 may be formed along the front and periphery of the housing 120 so as to be recognized from the sides, front, and rear of the wearer.

Here, the gas sensing sensor 185 may be a sensor for sensing the oxygen concentration. In this case, the control unit 180 can inform the surrounding user of the danger through the danger warning unit 186 when the oxygen concentration detected from the gas detection sensor 185 is lower than a preset concentration. For example, when the concentration of oxygen drops to 15% or less, the control unit 180 may determine a dangerous situation and notify the danger through the danger warning unit 186.

Alternatively, the gas detection sensor 185 may be a sensor for detecting noxious gas or explosive gas. For example, the gas detection sensor 185 may be a sensor for detecting carbon monoxide, carbon dioxide, methane, sulfur oxides, nitrogen oxides, fluorine compounds, ammonia, and the like. In this case, when the concentration of the gas detected from the gas sensing sensor 185 is equal to or higher than a predetermined concentration, the controller 180 determines that the gas is in a dangerous state and can notify the danger through the danger warning unit 186.

Here, the gas detection sensor 185 may be provided at a level that can detect a concentration that can not be perceived by a person, and the preset range is set to a concentration that can not be perceived by a person, .

If the result detected by the gas sensor 185 is a dangerous level, the control unit 180 notifies the danger warning unit 186 as well as the user wearing the smart earpiece 100 through the output unit 170 And notify all users of the smart earplug 100 or other users of the smart earplug 100 or the smart earplug 100 through the communication unit 183 of the detection of the danger have.

According to the smart earplug according to the present invention, most of the noise generated at the work site such as the machine sound and the human speech have different frequency bands. Therefore, since the audio earphone 150 separating sounds according to frequency bands is provided inside the smart ear cap 100 of the present invention, it is possible to prevent the noise of the workplace such as the machine noise from being heard in the user's ear, To be heard.

As described above, the smart earplug 100 according to the present invention allows communication between workers even in a state of wearing earplugs for noise shielding by allowing the operator to hear a conversation sound while blocking various noises generated in the workplace, It is possible to prevent a decrease in productivity and an industrial disaster due to the absence of communication. In addition, according to the present invention, effective communication can be performed by transmitting a voice signal to all users who work in the same work group or through the communication unit. In addition, the present invention can improve the work efficiency by providing the ease of use so as to provide excellent noise shielding ability and comfortable feeling to the ear and not to disturb the work.

In addition, depending on the situation, the leakage or lack of gas may cause a dangerous situation on the construction site, and the damage caused by the gas may become serious. However, when the smart earplug 100 according to the embodiment of the present invention as described above is used, the user who uses the smart earplug 100 and the user around the smart earplug 100 can promptly notify the user of the danger when a dangerous situation occurs, It can lead to necessary safety measures or quick evacuation. As a result, there is an effect of preventing human accidents that can occur at construction sites.

6 is a block diagram illustrating a wireless earpiece communication system having a gas sensing sensor according to an embodiment of the present invention.

6, an alert message delivery system using a smart ear plug includes a first group 620 and a second group 630 including an administrator terminal 610, a plurality of smart ear plugs, and a server 640 .

The administrator terminal 610 can send an alarm or voice message using wireless communication by connecting to the server, or set and control a user group, thereby transmitting an alarm signal, a voice message, or a danger signal according to the gas detection only to specific users. Here, the alarm includes an electronic sound, a notification sound, a warning sound, etc. for notifying a specific situation, and the voice message may include a directly recorded upbringing or an electronic voice. Or voice input, but is not limited thereto.

Here, the administrator terminal 610 may be any one of a smart earplug or a mobile terminal such as a personal computer (PC) or a smart phone, a tablet, etc., provided independently.

Users wearing smart earplugs in the field can be grouped according to work group or work environment. For example, the first smart earplug 621, the second smart earplug 622, the third smart earplug 623 and the fourth smart earplug 624 of the users performing the first task may be set to the first group The fifth smart earplug 631, the sixth smart earplug 632, the seventh smart earplug 633 and the eighth smart earplug 634 of the users performing another second task are set as the second group . The group setting and management can be performed through the server 640 and users of the central manager or the smart ear terminal can access the server 640 through the administrator terminal 610 such as a smart phone or a computer Setting and management such as adding or changing a new group may be performed.

All the smart earplugs 621, 622, 623, 624, 631, 632, 633 and 634 in FIG. 6 can communicate with the server 640 using the communication unit 183, Warning messages, and the like. Accordingly, it is possible to send the entire announcement related to the task to all of the smart earplugs 621, 622, 623, 624, 631, 632, 633, 634 which are communicable via the server 640, You can hear the related announcement. In addition, the server 640 stores identification information of each smart earplug, and can transmit notifications or voice messages through any one of unicast, multicast, and broadcast as needed. For example, if a central manager or a smart earplug user wants to send a message only to a particular group of users, e.g., the smart earplugs 621, 622, 623, 624 in the first group 620, the identification information of the smart earplugs 621, 622, 623, 624 in the first group 620 It is possible to access the server 640 through the administrator terminal 610 to set the recipient, and then send an important notification or announcement to only the first group 620.

Pre-defined grouping also allows a user of the first smart earplug 621 to forward her voice to other smart earplugs 622, 623, and 624 in the same group. In this case, the smart earplugs 621, 622, 623 and 624 in the first group have identification information of the smart earplugs in their group, and at the time of transmission of their voice, The voice signal can be transmitted using the multicast method only to the smart ear plugs belonging to the group of the group.

In addition, if the controller 180 determines that the controller 180 is in a dangerous state according to the detection result of the gas detection sensor 185, the risk message may be transmitted only to the smart earplugs in the predetermined group. For example, if the work area is physically distinct for each group, and the first smart earplug 621 in the first group has recognized a hazard situation, the risk message is sent to the other smart earplugs 622, 623, Lt; / RTI >

In addition, when group management and recipient designation are performed only through the server 640, after the voice signal of the first smart earplug 621 is transmitted to the server 640, It is also possible to transmit voice signals only to the other smart ear plugs 622, 623, In addition, if a group setting is not required, a user who desires to transmit his / her voice can transmit voice signals using a broadcast method. In this case, all the smart earplugs in a communicable range can be set to receive the voice signal. In this case, the communicable range may be different according to the communication protocol such as Bluetooth, IEEE 802.11 or UWB.

Such a smart earplug has a wireless communication function that performs important notices or notifications to all users at a noise site, notifies a specific group or related worker only or voice transmission function, Lt; / RTI >

7 is a front view showing an example of a smart earplug according to another embodiment of the present invention.

Referring to FIG. 7, the smart earplug 200 according to another embodiment of the present invention can be provided in a form that can be worn by a user.

Specifically, the smart earplug 200 includes a pair of housings 220, a connecting portion 211 connecting the housing 220 to the back of the user's neck, a connecting line 212 extending from the housing 220, And an output unit 270 and an ear pad 230 provided at an end of the connection line 212. [

A microphone 240 for collecting an external acoustic signal, and an audio filter, an amplifier, a PCB, a communication unit, and the like may be installed inside the housing 220. The microphone 240 may be provided on both side housings 220 as shown in the figure. The housing 220 can have a large area so that it can be seated in the user's body or clothes in front of the neck when the user hangs the smart earplug 200 on the neck.

The connection part 211 may be composed of a tube having a predetermined rigidity so as to maintain its shape and an electric wire provided inside the tube and electrically connecting components provided to the two side housings 220. For example, as in the case of the connecting portion 211 of the above-described embodiment, a battery may be provided only in one of the two side housings 220, and power may be supplied to the other housing through the connecting portion 211.

The switch 281 may be disposed on the front surface of the housing 220 so that the user can conveniently operate the power of the smart earplug 200.

Meanwhile, in this embodiment, the output unit 270 for transmitting a voice signal to a user may be separately provided outside the housing 220. As shown in the drawing, the output unit 270 may be formed in a structure similar to that of the earphone, and an ear pad 230 for fixing the output unit 270 to the user's ear canal and blocking external noise is coupled to the end of the output unit 270 . Here, the ear pad 230 may be provided interchangeably.

The smart earplug 200 according to the present embodiment can minimize the load burden on the user when the smart earplug 200 is used. In the case of the smart earplug 200, for example, the user can support the load of the housing 220 at the neck portion, Only the output unit 270 and the ear pad 230 are inserted, so that the inconvenience described above can be minimized.

While the present invention has been shown and described with reference to certain exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, Should be construed as having the broadest scope of thought. Skilled artisans may implement the pattern of features that have not been explicitly described in combination, substitution of the disclosed embodiments, but which, too, do not depart from the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

100, 200: smart earplug 111, 211: connection
112: hangers 120, 220: housing
130, 230: ear pad 140: microphone
141: collection tube 142: front plate
143: rear side plate 144:
150: Audio filter 160:
170, 270: output portion 171: diaphragm
172: Amateur 173: Coil
174: permanent magnet 175: body
180: control unit 181, 281: switch
182: Timer 183:
184: Transmission mode switch 190: Power supply
191: PCB 240: microphone
241: Membrane 242: Coil
243: first permanent magnet 244: second permanent magnet
245: elastic connection portion 246:
610: Administrator terminal 620:
630: second group 640: server

Claims (10)

In a smart earplug that can be worn on the user's double ear,
A microphone for receiving an external sound including external sound and external noise or the user's voice and outputting the audio signal as an audio signal;
An audio filter for selecting a predetermined frequency band including a voice frequency range of a person from an audio signal output from the microphone and outputting the selected frequency band;
An amplifying unit for amplifying the selected output audio signal;
An output unit for outputting an audio signal amplified by the amplifying unit;
A gas detection sensor for sensing the surrounding gas;
A control unit for comparing a result detected by the gas sensor with a preset value to determine whether or not a dangerous situation exists;
A danger warning unit for outputting a danger signal to the outside according to the determination result of the control unit; And
And a communication unit for communicating with at least one of a smart earplug or a server of at least one other user,
The control unit transmits a dangerous situation determination result to the smart earplug or the server of the other user through the communication unit and outputs a dangerous situation according to the gas detection transmitted through the communication unit through the danger warning unit or the output unit
Smart earplug with gas sensor. The method according to claim 1,
The gas sensing sensor senses the concentration of oxygen in the air,
If the oxygen concentration is determined to be lower than a preset value, the controller determines that the oxygen concentration is in a dangerous state
Smart earplug with gas sensor. The method according to claim 1,
The gas sensing sensor senses the concentration of one or more of the noxious gas and the explosive gas in the air,
If the concentration is determined to be lower than the predetermined value,
Smart earplug with gas sensor. The method according to claim 2 or 3,
The predetermined value may be lower or higher than a human perceivable limit value
Smart earplug with gas sensor. The method according to claim 1,
Wherein the danger warning section includes at least one of a light emitting means for outputting a visual danger signal and a speaker for outputting an audible danger signal
Smart earplug with gas sensor. The method according to claim 1,
The control unit, when determining the dangerous situation, informs the wearer of the dangerous situation through the output unit
Smart earplug with gas sensor. delete At least one smart earplug according to claim 1;
An administrator terminal for generating a notification message; And
And a server for receiving the notification message from the administrator terminal and transmitting a voice signal associated with the notification message to a predetermined smart earplug among the one or more smart earplugs,
The server transmits a danger signal according to the gas detection from one of the smart earplugs to at least another one of the other smart earplugs
Notification message delivery system using smart earplug with gas sensor. 9. The method of claim 8,
The administrative terminal,
And one of the smart earplugs or an independently provided manager's PC or mobile terminal.
Notification message delivery system using smart earplug with gas sensor. 9. The method of claim 8,
Wherein the predetermined smart earplug receiving the voice signal from the server is based on information input by the administrator terminal.
Notification message delivery system using smart earplug with gas sensor.

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