CN208908483U - Wear the hearing-protection earphone of induction - Google Patents
Wear the hearing-protection earphone of induction Download PDFInfo
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- CN208908483U CN208908483U CN201820944609.8U CN201820944609U CN208908483U CN 208908483 U CN208908483 U CN 208908483U CN 201820944609 U CN201820944609 U CN 201820944609U CN 208908483 U CN208908483 U CN 208908483U
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Abstract
The utility model is suitable for audio frequency apparatus technical field; provide a kind of hearing-protection earphone for wearing induction; voice control system includes: to wear the current wear condition of induction module monitoring earphone to send the first monitoring signals when monitoring to be converted to non-wearing state by wearing state again；When monitoring to be converted to wearing state by non-wearing state, the second monitoring signals are sent；Main control module suspends the timing to the time for wearing earphone when receiving the first monitoring signals；When receiving the second monitoring signals, restore the timing to the time for wearing earphone, and when timing time reaches preset first time threshold, sends first control signal；For audio playing control module when receiving first control signal, the audio for stopping loudspeaker playing or reduces the volume that the audio of loudspeaker plays.Whereby, the accurate timing of the utility model is worn the time that earphone listens audio, and time and/or the volume of audio are played with time control earphone.
Description
Technical field
The utility model relates to audio frequency apparatus technical field more particularly to a kind of hearing-protection earphones for wearing induction.
Background technique
For present people, music has become essential a kind of life flavoring agent in people's life.For
Better enjoyment music, earphone also become one of standing article with young man.Earphone is taken, people can enter
Inside the fine scene that earphone is presented for us, and do not have to worry that others can be bothered.But with the development of industrial technology, respectively
Kind noise source can issue noisy sound, for example the automobile on road thunders, noise in subway etc..In order to better
Catch the content of music, Many times we can select to increase volume.However, being received under relatively high volume for a long time
Concert damages our hearing, and this hearing impairment is substantially irreversible.Medical research shows that audience is listening to
Volume should be limited in 100 decibels hereinafter, and continuously listening period should be limited in one hour when music.Otherwise, will
It may cause permanent hearing impairment.
It is in the prior art, entitled if number of patent application is CN201320237049.X for hearing protection
Sound and volume sensor, control is arranged in the earpiece portion of earphone in the Chinese utility model patent of " earphone of overtime automatic control "
Device, when earphone begins to use, sound and volume sensor automatically record output volume and the time of earphone, and COMPREHENSIVE CALCULATING is to ear
Piece influence degree voice indices, when user uses or louder volume uses earphone for a long time, control device voluntarily controlled,
Volume is cut off, user is prompted to pay attention to easy ear health care, switch is set on earphone cable, controls the use state of control device, is controlled
Device processed has the function of automatic tuning volume, and the earphone of above-mentioned time-out automatic control prevents from user's long-time, louder volume makes
With earphone, ears are protected.Thus audience can be set audio playing apparatus max volume and continuous listening period, when continuous
The audio playing apparatus, which will be automatically stopped, when listening period reaches plays music and automatic shutdown.
In addition, there are also kind situations to be, and if user takes earphone during listening to music and does other thing, earphone at this time
Music is being played always, while calculating listening period, reduces volume automatically after reaching longest listening period.This carrys out user
Say it is unreasonable.If number of patent application is CN201510081249.4, the Chinese invention of entitled " Headphone structure " is special
Benefit application, a kind of Headphone structure of the disclosure of the invention, including an audio output unit and a sensor.Audio output unit includes a machine
Shell, a mainboard, a driving unit, a baffle and an earmuff.Sensor is set to the place not covered by earmuff on baffle and company
It is connected to mainboard.When sensor perception human ear there are when, mainboard judge that user has worn Headphone structure, and works as sensor and do not feel
Know human ear there are when, mainboard judges that user does not wear Headphone structure.Therefore, mainboard can wear earphone knot according to user
The audio content that coupled electronic device is controlled whether structure plays, and electronic device is made to suspend or stop to play in audio
Hold, or close the power module or wireless communication module of Headphone structure when not in use for a long time, to achieve the purpose that power saving.With
And number of patent application is CN201020645538.5, the Chinese utility model patent Shen of entitled " audio frequency broadcast system "
Please, utility model discloses a kind of audio frequency broadcast system, including an audio playing apparatus and an earphone.Earphone includes two pieces of electrodes
Piece and a resistance detection module.The utility model can be by earphone real-time detection human body resistance, and passes through surveyed human body electricity
Resistance is to judge whether user wears earphone, to automatically control the operating mode of audio frequency broadcast system.After user pulls up earphone
Can automatic pause play, can be replayed at pause automatically after user plugs in the earphone or pull up earphone in user
The audio frequency broadcast system can be closed after time is longer, can thus extend life of product and can also be energy saving.This two
In the technical solution of a patent, if user takes earphone during listening to music and does other thing, although ear can be suspended
Machine sowing is put the music on, but it is calculating listening period simultaneously, reduces volume either shutdown automatically after reaching longest listening period,
This is unreasonable for user.
In summary, the prior art is in actual use, it is clear that there is inconvenient and defect, so it is necessary to be improved.
Utility model content
For above-mentioned defect, the purpose of this utility model is to provide a kind of hearing-protection earphone for wearing induction, with
According to the wear condition of hearing-protection earphone, accurate timing is worn the time that earphone listens audio, and is according to control with the time
Earphone plays time and/or the volume of audio, and the user experience is improved.
To achieve the goals above, the utility model provides a kind of hearing-protection earphone for wearing induction, including ear casing
Body, the loudspeaker and voice control system being arranged in inside the earphone case, the voice control system include: again
Induction module is worn, the current wear condition of the hearing-protection earphone is monitored, is monitoring the hearing protection
When earphone is converted to non-wearing state by wearing state, the first monitoring signals are sent；Monitor the hearing-protection earphone by
When non-wearing state is converted to wearing state, the second monitoring signals are sent；
Main control module suspends described in wearing when receiving the first monitoring signals that the wearing induction module is sent
The timing of the time of hearing-protection earphone；When receiving the second monitoring signals that the wearing induction module is sent, recovery pair
The timing of the time of the hearing-protection earphone is worn, and when the timing time reaches preset first time threshold,
Send first control signal；
Audio playing control module is raised described in stopping when receiving the first control signal that the main control module is sent
The audio of sound device plays or reduces the volume that the audio of the loudspeaker plays.
According to the hearing-protection earphone, the voice control system includes sound acquisition module and noise reduction module again；
The sound acquisition module acquires the noise signal under the earphone case external environment, and by the noise signal
It is sent to the main control module；
The main control module judges that the noise loudness under the external environment reaches preset and makes an uproar according to the noise signal
When sound threshold value, sends and open noise reduction command signal to the noise reduction module；
The noise reduction module receives the unlatching noise reduction command signal, executes the noise reduction for playing audio to the loudspeaker and grasps
Make.
According to the hearing-protection earphone, the main control module includes:
Main control unit is sent out after the currently playing audio signal of the noise signal and the loudspeaker is carried out digital-to-analogue conversion
It is sent to signal processing module, and controls the noise reduction module adjustment noise reduction parameters；
Signal processing unit is connect with the main control unit and the noise reduction module respectively, by the institute after digital-to-analogue conversion
The noise reduction module is sent to after stating noise signal and audio signal progress signal enhanced processing.
According to the hearing-protection earphone, the voice control system includes: again
The manually opened module of noise reduction, is connected to the main control module, and receives and transmits starting to the main control module or close
Close decrease of noise functions operational order；After the main control module receives the starting or closing decrease of noise functions operational order, Xiang Suoshu
Noise reduction module sends the open signal or shutdown signal.
According to the hearing-protection earphone, the noise reduction module includes:
Noise reduction unit adjusts the noise reduction parameters according to the control of the main control unit, the signal processing unit is sent out
The noise signal and audio signal sent carries out noise reduction operation；
Audio mixing unit exports drop after being mixed the noise signal after the noise reduction operation with audio signal
Noise frequency.
According to the hearing-protection earphone, the noise reduction parameters include noise reduction depth, noise reduction audio volume and
Regulating time interval；The main control unit controls the noise reduction module according to the size of the ambient noise loudness and adjusts the drop
Depth of making an uproar is to corresponding preset range；
The main control unit is when the time for monitoring the hearing-protection earphone broadcasting reaching the second time threshold, root
The volume of the noise reduction audio is successively reduced according to the regulating time interval according to the noise loudness and the noise reduction depth；Its
In, the second time threshold is less than the first time threshold.
According to the hearing-protection earphone, the voice control system further include:
The noise threshold adjustment module being connect with the main control unit, for the noise threshold to be arranged；
The noise reduction parameters adjustment module being connect with the main control unit, for the noise reduction parameters to be arranged.
According to the hearing-protection earphone, noise threshold adjustment module and noise reduction parameters adjustment module setting with
The communication terminal of the earphone wireless communication connection.
According to the hearing-protection earphone, the wearing induction module be set to corresponding in the range of ear profile or
On the position of the earphone case of proximal end；
The wearing induction module includes pressure sensor and optical sensor.
According to the hearing-protection earphone, the sound acquisition module be by wire microphone or wireless microphone into
Row acquisition.
According to the hearing-protection earphone, the noise reduction module of the noise reduction unit and Audio mixing unit is integrated, and is wrapped
The active noise reduction unit control circuit for including active noise reduction unit and being connect with the active noise reduction unit.
According to the hearing-protection earphone, the active noise reduction unit is provided with CSCL interface, CSDA interface, LINR and connects
Mouth, LINL interface, BPR interface, BPL interface and audio output left and right acoustic channels；The active noise reduction unit control circuit includes
One group of bipolar double open switch circuit, includes two double-pole switches in parallel in the bipolar double open switch circuit, and one bipolar to open
One pole of the input terminal of pass is converted with the signal and the right-channel signals output end of amplifying circuit is connect, another double-pole switch
The homopolarity of input terminal converted with the signal and the left channel signals output end of amplifying circuit is connect, two double-pole switches it is defeated
Outlet is connect with the LINR interface and LINL interface respectively.
According to the hearing-protection earphone, the wearing induction module includes an at least sensor；The main control unit
Including micro-control unit, the micro-control unit is provided with digital analog converter, bus extender, transducing signal receiver, wired
Audio interface, wireless audio receiver, analog switch, left channel pin interface, right channel pin interface, control line pin interface
Data line pin interface；Wherein, the transducing signal receiver is connect with an at least sensor；The wireline audio interface
Wire microphone is connected, the wireless audio receiver connects the wireless microphone；The left channel pin interface, right channel
Pin interface is connect with the left and right sound channels signal input part of signal transformation and amplifying circuit respectively；The control wire pin
Interface and data wire pin interface are separately connected the CSCL interface and CSDA interface of the noise reduction module.
According to the hearing-protection earphone, the active noise reduction unit control circuit further includes an earphone male connector, described
The left and right acoustic channels output end of earphone male connector respectively with another pole of one group of bipolar double open switch and the BPL interface and
The connection of BPR interface.
According to the hearing-protection earphone, the manually opened module of noise reduction is set on the shell or is set to
On the communication terminal of earphone communication connection, and it is connect with the bus extender.
According to the hearing-protection earphone, the main control module monitors the volume that the loudspeaker plays audio, and
When monitoring that the volume reaches preset volume threshold and/or the timing time reaches second time threshold, sends and open
Noise reduction command signal is to the noise reduction module.
According to the hearing-protection earphone, the main control module is in pause to the time for wearing the hearing-protection earphone
Timing while, send second control signal；And restoring in the main control module to the wearing hearing-protection earphone
Time timing while, send third control signal；
The audio playing control module when receiving the second control signal, broadcast by the audio for suspending the loudspeaker
It puts, when receiving the third control signal, the audio for restoring the loudspeaker plays the audio playing control module.
The utility model is by the way that the hearing-protection earphone for wearing induction to be set as including earphone case, setting in the ear
The loudspeaker and voice control system of machine enclosure interior, wherein the voice control system includes: to wear induction module, master again
Module and audio playing control module are controlled, monitors the current wear condition of hearing-protection earphone by wearing induction module, and
Monitoring signals are sent to main control module, main control module is temporary when not wearing hearing-protection earphone according to the monitoring signals received
Stop the timing to wear time；Restore the timing to wear time when wearing hearing-protection earphone, and in the timing
Between when reaching preset first time threshold, the audio that control audio playing control module stops the loudspeaker playing or drop
The volume that the audio of the low loudspeaker plays.Thus according to the wear condition of hearing-protection earphone, earphone is worn in accurate timing
It listens the time of audio, and is time and/or the volume for playing audio according to control earphone with the time, to make hearing protection ear
Machine is according to the length of time actually listened to music come adjust automatically volume.The user experience is improved.In addition, when main control module is according to sound
Sound acquisition module acquires the noise signal under the earphone case external environment, judges that the noise loudness of the external environment reaches
When preset noise threshold, sends and open noise reduction command signal；When noise reduction module receives the unlatching noise reduction command signal, execute
The noise reduction operation of audio is played to the loudspeaker.As a result, under the environment according to locating for earphone noise parameter, to earphone loudspeaking
The audio that device plays executes noise reduction operation, improves user and listens to the hearing impression that earphone plays audio.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the hearing-protection earphone provided by the embodiment of the utility model for wearing induction；
Fig. 2 be the voice control system of hearing-protection earphone provided by the embodiment of the utility model composition schematic diagram it
One；
Fig. 3 be the voice control system of hearing-protection earphone provided by the embodiment of the utility model composition schematic diagram it
Two；
Fig. 4 be the voice control system of hearing-protection earphone provided by the embodiment of the utility model composition schematic diagram it
Three；
Fig. 5 is the circuit diagram of the voice control system of hearing-protection earphone provided by the embodiment of the utility model.
Wherein, appended drawing reference:
10- earphone case 311- sensor
20- loudspeaker 321- main control unit
30- voice control system 322- signal processing unit
31- wears induction module 351- noise reduction unit
32- main control module 352- Audio mixing unit
33- audio playing control module 353- noise reduction unit control circuit
The bipolar double open switch circuit of mono- group of 34- sound acquisition module 3531-
35- noise reduction module 3211- micro-control unit
Manually opened 3221 signal of the module transformation of 36- noise reduction and amplifying circuit
37- noise threshold adjusts module 35311- double-pole switch
38- noise reduction parameters adjust module
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specification in for " one embodiment ", " embodiment ",
The reference of " example embodiment " etc. refers to that the embodiment of description may include specific feature, structure or characteristic, but not necessarily
Each embodiment must include these a particular feature, structure, or characteristics.In addition, this statement not refers to the same implementation
Example.Further, it when describing specific feature, structure or characteristic in conjunction with the embodiments, is described with or without specific, table
Bright such feature, structure or characteristic are integrated in other embodiments is in the knowledge of those skilled in the range.
Some vocabulary is used in specification and following claims to censure specific components or component, this field
The member of ordinary skill, it is to be appreciated that technology user or manufacturer can be different noun or term come call the same component or
Component.This specification and following claims not in such a way that the difference of title is as component or component is distinguished, and
It is the criterion with component or component difference functionally as differentiation.In specification in the whole text and subsequent claim
Mentioned " comprising " and "comprising" is an open term, therefore should be construed to " including but not limited to ".In addition, " connection "
One word includes any direct and indirect means of electrical connection herein.Indirect means of electrical connection include by other devices into
Row connection.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and is not instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.
Referring to Fig. 1 and Fig. 2, in one embodiment of the utility model, a kind of hearing protection for wearing induction is provided
Earphone 100, including earphone case 10, the loudspeaker being arranged in inside earphone case 10 20 and voice control system 30, sound
Control system 30 includes: again
Induction module 31 is worn, the current wear condition of monitoring hearing-protection earphone 100 is monitoring hearing-protection earphone
100 when being converted to non-wearing state by wearing state, sends the first monitoring signals；Monitoring hearing-protection earphone 100 by not
When wearing state is converted to wearing state, the second monitoring signals are sent；
Main control module 32, when receiving the first monitoring signals for wearing the transmission of induction module 31, pause is to wearing hearing
Protect the timing of the time of earphone 100；When receiving the second monitoring signals for wearing the transmission of induction module 31, restore to wearing
The timing of the time of the hearing-protection earphone 100, and when the timing time reaches preset first time threshold, hair
Send first control signal；
Audio playing control module 33 stops loudspeaker when receiving the first control signal of the transmission of main control module 32
20 audio plays or reduces the volume that the audio of the loudspeaker 20 plays.
In this embodiment, the current wear condition of hearing-protection earphone 100 is monitored by wearing induction module 31, and will
Relevant monitoring signals are sent to main control module 32.Main control module 32 when user is converted to non-wearing state by wearing state,
The timing for stopping wearing user hearing-protection earphone 100 continues pair when user is converted to wearing state by non-wearing state
User wears the timing of hearing-protection earphone 100, it is possible thereby to which accurately timing user wears earphone, that is to say, that accurately meter
When user wear time for listening to music of earphone.And when the time reaching preset first time threshold, such as 1 hour, then send out
Send control signal to audio playing control module 33, which, which stops broadcasting audio either, reduces what audio played
Volume realizes hearing protection.
Preferably, main control module 32 sends the while timing of the pause to the time for wearing hearing-protection earphone 100
Two control signals；And it is sent while restoring the timing to the time for wearing hearing-protection earphone 100 in main control module 32
Third controls signal；Audio playing control module 33 suspends the loudspeaker 20 when receiving the second control signal
Audio plays, and the audio playing control module 33 restores the loudspeaker 20 when receiving the third control signal
Audio plays.The detection for wearing the sensor of induction for earphone wearing state is increased in the utility model, is incuded wearing
After detecting that earphone is taken, music can be suspended and interrupt timing；It, can be after after wearing induction and detecting and put on earphone again
Continued broadcasting puts the music of interruption and continues timing, actually listens to music the time accurately to calculate.Thus, it is possible to guarantee that user listens to
The continuity and integrality of audio.
In one embodiment of the utility model, wears induction module 31 and be set to corresponding in the range of ear profile
Or on the position of the earphone case 10 of proximal end；By the way that sensing is arranged on the position of the earphone case 10 close to ear profile
Device, what can be prepared monitors the case where user wears earphone case 10.Such as wear induction module 31 include pressure sensor and
Optical sensor, when wearing upper earphone, the corresponding position on earphone case 10 must will receive external pressure, by monitoring the external pressure
The generation and disappearance of power may determine that whether user has worn hearing-protection earphone 100.When wearing earphone, earphone case 10
On corresponding position light can be dimmed, the variation of the luminous intensity by monitoring these positions equally can be determined that whether user wears
Hearing-protection earphone 100 is worn.
Referring to Fig. 3, in one embodiment of the utility model, voice control system 30 includes sound acquisition module 34 again
With noise reduction module 35；
Sound acquisition module 34 acquires the noise signal under 10 external environment of earphone case, and the noise signal is sent
To main control module 32；
Main control module 32 judges that the noise loudness under the external environment reaches preset noise according to the noise signal
When threshold value, sends and open noise reduction command signal to noise reduction module 35；
Noise reduction module 35 receives the unlatching noise reduction command signal, executes the noise reduction operation that audio is played to loudspeaker 20.
In this embodiment, it is contemplated that since the noise outside hearing-protection earphone 100 may also will affect hearing protection
Earphone 100 plays the quality of audio, and the sense of hearing for making user play audio using hearing-protection earphone 100 is bad, therefore in sound
The parameter index of 100 ambient external noise of hearing-protection earphone is increased in the noise reduction operation of control system 30.Pass through sound first
Sound acquisition module 34 acquires the noise signal under 10 external environment of earphone case, and main control module 32 is according to the noise signal received
And pre-set noise threshold judges whether to need to issue to open noise reduction command signal unlatching noise reduction module 35, when noise reduction mould
When block 35 receives the unlatching noise reduction command signal, then audio is played to loudspeaker 20 and execute noise reduction operation, thus loudspeaker
20 noise reduction audios played are corresponding noise reduction operation to be executed, due to examining according to the parameter of 10 ambient external noise of earphone case
The influence for having considered environmental noise improves sense of hearing comfort level of the user using hearing-protection earphone 100 when.
Referring to Fig. 3, in one embodiment of the utility model, main control module 32 includes:
Main control unit 321, after the currently playing audio signal of the noise signal and loudspeaker 20 is carried out digital-to-analogue conversion
It is sent to signal processing unit 322, and controls noise reduction module 35 and adjusts noise reduction parameters；
Signal processing unit 322 is connect with main control unit 321 and noise reduction module 35 respectively, by the institute after digital-to-analogue conversion
Noise reduction module 35 is sent to after stating noise signal and audio signal progress signal enhanced processing.
In this embodiment, hearing-protection earphone 100 can play audio by wireless mode or wireline mode, such as make
With the mode playback music of bluetooth headset or wired earphone.When playing Bluetooth music, main control unit 321 receives bluetooth sound
Turn after music signal by 321 inside DAC of main control unit (Digital to analog converter, digital analog converter)
Analog signal output is changed into signal processing unit 322, after audio analog signals are carried out preliminary treatment by signal processing unit 322
It is sent into noise reduction module 35.Signal processing unit 322 realizes to include a signal transformation and amplifying circuit 3221.Booting, which plays, to be had
When line audio, then wireline audio is sent directly by noise reduction module 35 by the analog switch of main control unit 321.Being achieved in is having
Noise reduction music can also be listened under ray mode.
In one embodiment of the utility model, sound acquisition module 34 includes wired audio collection unit and wireless sound
Frequency acquisition unit, wireline audio acquisition unit acquire the first noise signal under the external environment, and by first noise
Signal is sent to main control module 32；Wireless audio acquisition unit acquires the second noise signal under the external environment, and by institute
It states the second noise signal and is sent to main control module 32；The acquisition of noise signal under the external environment can be passed through respectively
Wireline audio acquisition unit and wireless audio acquisition unit carry out, or are acquired simultaneously using two kinds of audio collection units.
Preferably, sound acquisition module 34 is acquired by wire microphone or wireless microphone.The then basis of main control unit 321
When first noise signal judges that the noise loudness reaches preset noise threshold, noise reduction module 35 is opened, by described the
One noise signal exports after digital-to-analogue conversion, and sends noise reduction module for the wireline audio signal that current speaker 20 plays
35, and control noise reduction module 35 and adjust noise reduction parameters；And/or main control unit 321 is according to second noise signal judgement
When noise loudness under external environment reaches preset noise threshold, open noise reduction module 35, by second noise signal with
And the wireless audio signal that current speaker 20 plays exports after digital-to-analogue conversion, and controls noise reduction module 35 and adjust noise reduction ginseng
Number；Signal processing unit 322 is then connect with main control unit 321 and noise reduction module 35 respectively, described first will received respectively
Noise signal and/or second noise signal, the wireless audio signal are converted by signal and amplifying circuit 3221 is handled
After be sent to noise reduction module 35.
Unlike the automatic decrease of noise functions of the hearing-protection earphone 100 of above-described embodiment description: hearing-protection earphone
100 also have the function of manual active noise reduction.Specifically, voice control system 30 includes: again
The manually opened module 36 of noise reduction, connect with main control module 32, receives and transmits starting to main control module 32 or close
Decrease of noise functions operational order；After main control module 32 receives the starting or closing decrease of noise functions operational order, to noise reduction module
35 send the open signal or shutdown signal.The manually opened module 36 of the noise reduction is set on the shell 10 or is arranged
Change function mould on the mobile communication terminal communicated to connect with the hearing-protection earphone 100, thus user can be manually pressed by
Block starts the decrease of noise functions of hearing-protection earphone 100.Therefore, main control unit 321 can also according to the needs of users, wired
Under audio-frequency play mode, the decrease of noise functions of hearing-protection earphone 100 is switched according to their needs, to realize in wired play mode
Under can also play noise reduction audio.
In one embodiment of the utility model, noise reduction module 35 includes:
Noise reduction unit 351 adjusts the noise reduction parameters according to the control of main control unit 321, by the signal processing unit
322 noise signals sent and audio signal carry out noise reduction operation；
Audio mixing unit 352, it is defeated after the noise signal after the noise reduction operation is mixed with audio signal
Noise reduction audio out.
In this embodiment, the noise reduction parameters that noise reduction unit 351 is configured according to main control unit 321, by the noise
Signal carries out noise reduction operation；Audio mixing unit 352 respectively mixes the noise signal after noise reduction with audio signal later
After export noise reduction audio, realize hearing-protection earphone 100 export audio noise reduction.
In addition, the sound acquisition module 34 in above-described embodiment description is adopted by wired acquisition unit, wireless collection unit
The first noise signal and/or second noise signal are collected；Then noise reduction unit 351 is according to the configuration of main control unit 321
First noise signal and/or second noise signal are carried out noise reduction operation by noise reduction parameters；Audio mixing unit 352 later
The first, second noise signal after noise reduction is mixed with the wireline audio signal or the wireless audio signal respectively respectively
Noise reduction audio is exported after conjunction, realizes the noise reduction that hearing-protection earphone 100 exports audio.
The noise reduction parameters include noise reduction depth, the volume of noise reduction audio and regulating time interval；The master control list
Member 321 adjusts the noise reduction depth according to the size of the ambient noise loudness control noise reduction module 35 and presets to corresponding
Range；
Main control unit 321 when monitoring the time that the hearing-protection earphone 100 plays and reaching the second time threshold,
The volume of the noise reduction audio is successively reduced according to the regulating time interval according to the noise loudness and the noise reduction depth；
Wherein, the second time threshold is less than the first time threshold.
Specifically, the noise reduction parameters include noise reduction depth, the volume of noise reduction audio and regulating time interval；Master control
Unit 321 controls noise reduction module 35 according to the size of the noise loudness and adjusts the noise reduction depth to corresponding preset range；
And
Main control unit 321 is when the play time for monitoring loudspeaker 20 reaches the preset time threshold, according to described
Noise loudness and the noise reduction depth successively reduce the volume of the noise reduction audio according to the regulating time interval.Such as it is current
The noise loudness of environmental noise reached 80 decibels it is serious influenced user and listen to the music that plays in earphone,
It needs to carry out noise reduction, and influences the listening music of user to make the noise not, the noise loudness needs to be reduced to 60 decibels
Hereinafter, so noise reduction depth -30 decibel, can be configured, Huo Zhejie according to the needs of users as specifically how many decibel
It closes other specific noise reduction parameters to be configured, is the preset range met the requirements at 60~0 decibels.Noise reduction depth is maximum
Adjustable extent is preferred are as follows: different noise reduction audios does not also can be set in 0-35dB and the habit that is listened to music according to different user
Volume, if habit listen it is loud can be set to 70 decibels, if habit listen small sound can be set to 50 decibels etc..And it is
User is allowed once not feel the obvious row of noise reduction, it can be to setting regulating time interval, such as every 3 minutes reduction institutes
State 10 decibels of noise loudness, and the volume every the volume of the noise reduction audio of adjustment in 5 minutes, with last time noise reduction audio
Difference of 5 decibels than difference, is comfortable on user acoustically, rather than makes biggish change acoustically suddenly.In addition
The time threshold is such as configured according to conventional, and if noise reduction audio broadcast sound volume is at 100 decibels, time threshold is 1 hour.
Or noise reduction audio broadcast sound volume, at 70 decibels, time threshold is 2 hours.Or the noise reduction audio no matter exported be respectively
How much, it is unified to set time threshold to 1 hour.
In addition, 5 class Standard of Environmental Noise value of city is as follows:
The suitable application region of 3 each class standards
(1) 0 class standard is suitable for the region that convalescence area, advanced villa quarter, area, luxurious hotel etc. especially need peace and quiet.It is located at
Outskirts of a town and rural this kind region are respectively by being strict in 5 decibels of 0 class standard execution.
(2) 1 class standards are suitable for the region based on inhabitation, culture and education organ.Rural living environment, which can refer to, executes such
Standard.
(3) 2 class standards are suitable for inhabitation, business, industrial hybrid region.
(4) 3 class standards are suitable for industrial area.
Road traffic arterial road two side areas of (5) 4 class standards suitable for city, passes through the cruiseway two in city
Side region.Pass through ambient noise (referring to noise level when the not passing through train) limit of the railway primary and secondary main line two side areas in city
Value.The hearing-protection earphone 100 provided by the utility model for wearing induction can carry out noise reduction parameters with reference to above-mentioned numerical value, make an uproar
The setting of the numerical value such as sound threshold value.
Referring to fig. 4, in one embodiment of the utility model, voice control system 30 further include:
The noise threshold adjustment module 37 being connect with main control unit 321, for the noise threshold to be arranged；
The noise reduction parameters adjustment module 38 being connect with main control unit 321, for the noise reduction parameters to be arranged；Pass through above-mentioned two
A adjustment module can need to carry out respectively according to individual subscriber the adjustment of the noise threshold and noise reduction parameters.For example, if with
Family is more sensitive to environmental noise, can reduce the noise threshold, as the threshold value is set as 50 decibels.Or user is to dropping
The time interval that audio volume lowers during making an uproar has different needs, and can voluntarily be configured.Preferably, noise threshold tune
Mould preparation block 37 and noise reduction parameters adjustment module 38 are arranged in whole with the mobile communication of the wireless communication connection of hearing-protection earphone 100
End.Relevant APP (Application, computer applied algorithm) can be installed such as on mobile phone；Related ginseng is carried out convenient for user
Several adjustment meets the needs of it plays audio to hearing-protection earphone 100.
Referring to fig. 4, in one embodiment of the utility model, noise reduction unit 351 and Audio mixing unit 352 are integrated
Noise reduction module 35, and include the noise reduction unit control circuit 353 being connect with noise reduction unit 352.Referring to Fig. 5, voice control system
30 specifically include:
Noise reduction unit 352 is provided with CSCL interface, CSDA interface, LINR interface, LINL interface, BPR interface, BPL interface
And audio output left and right acoustic channels (FB_MICR, FB-MICL；LSPK,HPR)；Noise reduction unit control circuit 353 includes one group double
Pole double open switch circuit 3531,3341 include two double-pole switches 35311 in parallel in bipolar double open switch circuit, and one bipolar
One pole of the input terminal of switch 35311 is converted with signal and the right-channel signals output end (OUT-R) of amplifying circuit 3221 is connect,
The homopolarity and signal of the input terminal of another double-pole switch 35311 convert and the left channel signals output end of amplifying circuit 3221
(OUT-L) it connects, the output end of two double-pole switches 35311 is connect with the LINR interface and LINL interface respectively.
In addition, wearing induction module 31 includes an at least sensor 311；Main control unit 321 includes micro-control unit (MCU)
3211, micro-control unit 3211 is provided with digital analog converter, bus extender (GPIO), wireline audio interface (MIC_L, MIC_
R), wireless audio receiver (RF), analog switch, left channel pin interface (SPKL), right channel pin interface (SPKR), control
Wire pin interface (SCL), data line pin interface (SDA)；Wherein, transducing signal receiver (Capsense) and described at least one
Sensor 311 connects；Wireline audio interface connects (MIC_L, MIC_R) wire microphone, wireless audio receiver (RF) connection
The wireless microphone；Left channel pin interface (SPKL), right channel pin interface (SPKR) respectively with the signal transformation and
The left and right sound channels signal input part of amplifying circuit 3221 connects；Control line pin interface (SCL) and data wire pin interface
(SDA) the CSCL interface and CSDA interface of noise reduction unit 352 are separately connected.
Noise reduction unit control circuit 353 further includes an earphone female (JACK) or male connector (Plug), and it is public for not limiting to herein
Head can be headset body base and then match a tone frequency channel wire again, can also be with earphone itself even the tone frequency channel wire of a band male connector.
The left and right acoustic channels output end (L, R) of earphone male connector, respectively with another pole of one group of bipolar double open switch 35311 and BPL interface
It is connected with BPR interface.In addition, the manually opened module 36 of noise reduction is connect with bus extender (GPIO).In specific implementation, noise reduction hand
Dynamic opening module 36 is set as the ANC key in Fig. 5.
In the present embodiment, the detection that earphone wearing state is carried out by wearing inductive pick-up, such as pressure sensor and
Optical sensor, by the variation of the pressure either optical signal of 10 corresponding portion of sensor test earphone shell, then by the letter
Number variation be transmitted to micro-control unit 3211, micro-control unit 3211 wears the state of earphone.It wears in micro-control unit 3211
It wears after induction detects that earphone is taken, the music of loudspeaker 20 can be suspended and interrupt timing；Weight is detected wearing induction
After newly putting on earphone, it will continue to play the music of loudspeaker 20 and continue timing, can accurately calculate and actually listen to music the time,
And to make hearing-protection earphone according to the length of time actually listened to music come adjust automatically volume or to the music of broadcasting
Carry out noise reduction operation.Noise reduction unit 352 is made an uproar by the environment that MIC (Microphone, microphone) acquires 10 periphery of earphone outer covering
Acoustical signal, after being sent to micro-control unit (MCU) 3211, digital analog converter passes through left sound after carrying out digital to analog conversion to noise signal
Road pin interface (SPKL), right channel pin interface (SPKR) are transmitted to the transformation that signal transformation amplifying circuit 3221 carries out signal
And enhanced processing.If similarly currently playing is wireless audio signal, the wireless audio signal is also transmitted to signal and is become
Change transformation and enhanced processing that amplifying circuit 3221 carries out signal.Later, amplifying circuit 3221 will treated makes an uproar for signal transformation
Acoustical signal and wireless audio signal are transmitted to noise reduction unit 352 via CSCL interface and CSDA interface, and do inside it corresponding
Signal processing after mixed with audio signal after by audio output left and right acoustic channels (FB_MICR, FB-MICL；LSPK, HPR) output,
To realize active noise reduction function.Area for currently playing wireline audio signal, with wireless audio signal processing mode
It is not, noise reduction unit 352 is delivered directly to by analog switch.Main control unit 321 can pass through communication bus and noise reduction list
Member 352 communicates, and control noise reduction unit 352 configures noise reduction parameters, controls the switch of decrease of noise functions, adjusts noise reduction depth etc..Noise reduction
The mode of functional switch can also realize automatic switch decrease of noise functions by automatically turning on function by manual mode.When
When using automatic switch decrease of noise functions, the MIC for being connected to main control unit 321 can acquire external sound to main control unit 321, master control list
First 321 judge whether to reach preset noise threshold according to the loudness size of outside noise, these parameters of noise threshold can lead to
Cell phone application is crossed to be set.When reaching given threshold, main control MCU automatically opens decrease of noise functions, and according to the sound of outside noise
The depth of big minor adjustment noise reduction is measured, to adapt to different noise circumstances.For there is the people of specific demand, can also be dropped by ANC
It makes an uproar to switch and to turn on or off active noise reduction function manually.
In one embodiment of the utility model, main control module 32 monitors the volume that the loudspeaker 20 plays audio,
And when monitoring that the volume reaches preset volume threshold and/or the timing time reaches second time threshold, send
Noise reduction command signal is opened to noise reduction module 35.Second time threshold is less than first time threshold.If first time threshold is 1 small
When, and second time threshold is then half an hour or 1 hour.I.e. before stopping playing audio, can also to the audio of broadcasting into
Row noise reduction.The play time of the monitoring loudspeaker 20 of main control module 32, it may also be said to be that hearing protection ear is worn according to monitoring user
The length of 100 time of machine carrys out adjust automatically volume, to achieve the purpose that protect hearing user.Main control module 32 automatically records user
The time of music is played, if what is set before is active noise reduction, the music of this time is after active noise reduction
Music；If the manual noise reduction switch set before, carried out according to actual switch noise reduction operation；And it combines over time, become
The parameters such as ambient noise loudness, noise reduction depth are played by the reduction hearing-protection earphone 100 of main control module 32 controlled slowly
The volume of music realizes the purpose of protection hearing in the case where user is noninductive.Hearing-protection earphone 100 can be according to extraneous ring
The noise loudness in border is automatically switched ANC (Active Noise Cancellation, active noise reduction) function, and adaptive tune
Whole noise reduction depth.
Hearing-protection earphone 100 is according to the length of wear time come adjust automatically volume.Induction module 31 is worn to be used to
The detection for carrying out earphone wearing state, after wearing induction and detecting that earphone is taken, meeting main control module 32 can control audio broadcasting
Control module 33 suspends 20 music of loudspeaker, and main control module 32 simultaneously can interrupt timing；It detects in wearing induction and wears again
After upper earphone, audio playing control module 33 will continue to control loudspeaker 20 and play the music interrupted and continue timing, thus may be used
The time is actually listened to music accurately to calculate, to make hearing-protection earphone according to the length of time actually listened to music to adjust automatically
Whole volume.Thus hearing-protection earphone 100 is according to the length of wear time come adjust automatically volume.Main control module 32 can be automatic
The time that user plays music, and the parameters such as combining environmental noise loudness, noise reduction depth over time, become are recorded, control is passed through
The loudness for reducing earphone and playing music of algorithm processed slowly, the purpose of protection hearing is realized in the case where user is noninductive.
In conclusion the utility model will be by that will wear the hearing-protection earphone of induction, to be set as include earphone case, is set
The loudspeaker and voice control system inside the earphone case are set, wherein the voice control system includes: to wear again
Induction module, main control module and audio playing control module, current by wearing induction module monitoring hearing-protection earphone
Wear condition, and monitoring signals are sent to main control module, main control module is tried hard to keep according to the monitoring signals received not wearing to listen
Timing of the pause to wear time when earflap machine；Timing of the recovery to wear time when wearing hearing-protection earphone, and
When the timing time reaches preset first time threshold, control audio playing control module stops the audio of the loudspeaker
Play or reduce the volume that the audio of the loudspeaker plays.It is accurate to count thus according to the wear condition of hearing-protection earphone
When wear earphone and listen time of audio, and be time and/or the volume that audio is played according to control earphone with the time, to make
Hearing-protection earphone is according to the length of time actually listened to music come adjust automatically volume.The user experience is improved.In addition, working as master control
Module acquires the noise signal under the earphone case external environment according to sound acquisition module, judges making an uproar for the external environment
When sound loudness reaches preset noise threshold, sends and open noise reduction command signal；Noise reduction module receives the unlatching noise reduction instruction
When signal, the noise reduction operation that audio is played to the loudspeaker is executed.As a result, under the environment according to locating for earphone noise ginseng
Number executes noise reduction operation to the audio that earphone speaker plays, and improves user and listens to the hearing impression that earphone plays audio.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art work as can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (17)
1. a kind of hearing-protection earphone for wearing induction, including earphone case, the loudspeaker being arranged in inside the earphone case
And voice control system, which is characterized in that the voice control system includes: again
Induction module is worn, the current wear condition of the hearing-protection earphone is monitored, is monitoring the hearing-protection earphone
When being converted to non-wearing state by wearing state, the first monitoring signals are sent；Monitoring the hearing-protection earphone by not wearing
When the state of wearing is converted to wearing state, the second monitoring signals are sent；
Main control module, when receiving the first monitoring signals that the wearing induction module is sent, pause is to the wearing hearing
Protect the timing of the time of earphone；When receiving the second monitoring signals that the wearing induction module is sent, restore to wearing
The timing of the time of the hearing-protection earphone, and when the timing time reaches preset first time threshold, it sends
First control signal；
Audio playing control module stops the loudspeaker when receiving the first control signal that the main control module is sent
Audio play or reduce the loudspeaker audio play volume.
2. hearing-protection earphone according to claim 1 again, which is characterized in that the voice control system is adopted including sound
Collect module and noise reduction module；
The sound acquisition module acquires the noise signal under the earphone case external environment, and the noise signal is sent
To the main control module；
The main control module judges that the noise loudness under the external environment reaches preset noise threshold according to the noise signal
When value, sends and open noise reduction command signal to the noise reduction module；
The noise reduction module receives the unlatching noise reduction command signal, executes the noise reduction operation that audio is played to the loudspeaker.
3. hearing-protection earphone according to claim 2, which is characterized in that the main control module includes:
Main control unit is sent to after the currently playing audio signal of the noise signal and the loudspeaker is carried out digital-to-analogue conversion
Signal processing module, and control the noise reduction module adjustment noise reduction parameters；
Signal processing unit is connect with the main control unit and the noise reduction module respectively, will be made an uproar described in after digital-to-analogue conversion
Sound signal and audio signal are sent to the noise reduction module after carrying out signal enhanced processing.
4. hearing-protection earphone according to claim 2, which is characterized in that the voice control system includes: again
The manually opened module of noise reduction, is connected to the main control module, and receives and transmits starting to the main control module or close drop
It makes an uproar functional command；After the main control module receives the starting or closing decrease of noise functions operational order, Xiang Suoshu noise reduction
Module sends open signal or shutdown signal.
5. hearing-protection earphone according to claim 3, which is characterized in that the noise reduction module includes:
Noise reduction unit adjusts the noise reduction parameters according to the control of the main control unit, the signal processing unit is sent
The noise signal and audio signal carry out noise reduction operation；
Audio mixing unit exports noise-reducing after being mixed the noise signal after the noise reduction operation with audio signal
Frequently.
6. hearing-protection earphone according to claim 5, which is characterized in that the noise reduction parameters include noise reduction depth, drop
The volume of noise frequency and regulating time interval；The main control unit controls the noise reduction according to the size of ambient noise loudness
Module adjusts the noise reduction depth to corresponding preset range；
The main control unit is made an uproar when the time for monitoring the hearing-protection earphone broadcasting reaching second time threshold according to described
Sound loudness and the noise reduction depth successively reduce the volume of the noise reduction audio according to the regulating time interval；Wherein, described
Second time threshold is less than the first time threshold.
7. hearing-protection earphone according to claim 6, which is characterized in that the voice control system further include:
The noise threshold adjustment module being connect with the main control unit, for the noise threshold to be arranged；
The noise reduction parameters adjustment module being connect with the main control unit, for the noise reduction parameters to be arranged.
8. hearing-protection earphone according to claim 7, which is characterized in that the noise threshold adjustment module and noise reduction ginseng
The communication terminal with earphone wireless communication connection is arranged in number adjustment module.
9. hearing-protection earphone according to claim 1, which is characterized in that the wearing induction module, which is set to, to be corresponded to
On the position of the earphone case of in the range of ear profile or proximal end；
The wearing induction module includes pressure sensor and optical sensor.
10. hearing-protection earphone according to claim 2, which is characterized in that the sound acquisition module is by wired
What microphone or wireless microphone were acquired.
11. hearing-protection earphone according to claim 5, which is characterized in that integrate the noise reduction unit and audio mix
The noise reduction module of unit, and controlled including active noise reduction unit and the active noise reduction unit being connect with the active noise reduction unit
Circuit.
12. hearing-protection earphone according to claim 11, which is characterized in that the active noise reduction unit is provided with CSCL
Interface, CSDA interface, LINR interface, LINL interface, BPR interface, BPL interface and audio output left and right acoustic channels；The active
Noise reduction unit control circuit includes one group of bipolar double open switch circuit, includes two in parallel in the bipolar double open switch circuit
Double-pole switch, a pole of the input terminal of a double-pole switch and the signal convert and the right-channel signals output end of amplifying circuit
Connection, the homopolarity of the input terminal of another double-pole switch and the signal convert and the left channel signals output end of amplifying circuit connects
It connects, the output end of two double-pole switches is connect with the LINR interface and LINL interface respectively.
13. hearing-protection earphone according to claim 12, which is characterized in that the wearing induction module includes at least one
Sensor；The main control unit includes micro-control unit, the micro-control unit be provided with digital analog converter, bus extender,
Transducing signal receiver, wireline audio interface, wireless audio receiver, analog switch, left channel pin interface, right channel pin
Interface, control line pin interface data line pin interface；Wherein, the transducing signal receiver and an at least sensor connect
It connects；The wireline audio interface connects wire microphone, and the wireless audio receiver connects wireless microphone；The L channel
Pin interface, right channel pin interface are connect with the left and right sound channels signal input part of signal transformation and amplifying circuit respectively；
The control line pin interface and data wire pin interface are separately connected the CSCL interface and CSDA interface of the noise reduction module.
14. hearing-protection earphone according to claim 13, which is characterized in that the active noise reduction unit control circuit is also
Including an earphone male connector, the left and right acoustic channels output end of the earphone male connector another pole with one group of bipolar double open switch respectively
And the BPL interface is connected with BPR interface.
15. hearing-protection earphone according to claim 13, which is characterized in that the manually opened module of noise reduction is set to described
It on shell or is set on the communication terminal communicated to connect with the earphone, and is connect with the bus extender.
16. according to hearing-protection earphone described in claim 2,3,4,6,8,10,11,12 or 14, which is characterized in that the master
Control module monitors described in loudspeaker play audio volume, and monitor the volume reach preset volume threshold and/or
When the timing time reaches second time threshold, sends and open noise reduction command signal to the noise reduction module.
17. hearing-protection earphone according to claim 1, which is characterized in that the main control module is in pause to wearing institute
While stating the timing of the time of hearing-protection earphone, second control signal is sent；And in the main control module in recovery pair
While wearing the timing of the time of the hearing-protection earphone, sends third and control signal；
When receiving the second control signal, the audio for suspending the loudspeaker plays the audio playing control module,
When receiving the third control signal, the audio for restoring the loudspeaker plays the audio playing control module.
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| CN201820944609.8U CN208908483U (en) | 2018-06-19 | 2018-06-19 | Wear the hearing-protection earphone of induction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112312258A (en) * | 2020-09-08 | 2021-02-02 | 深圳市逸音科技有限公司 | Intelligent earphone with hearing protection and hearing compensation |
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