CN206932369U - A kind of earphone control system - Google Patents
A kind of earphone control system Download PDFInfo
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- CN206932369U CN206932369U CN201720738561.0U CN201720738561U CN206932369U CN 206932369 U CN206932369 U CN 206932369U CN 201720738561 U CN201720738561 U CN 201720738561U CN 206932369 U CN206932369 U CN 206932369U
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- 238000001914 filtration Methods 0.000 claims abstract description 23
- 230000001133 acceleration Effects 0.000 claims abstract description 20
- 238000004146 energy storage Methods 0.000 claims abstract description 17
- 230000005236 sound signal Effects 0.000 claims abstract description 12
- 230000003321 amplification Effects 0.000 claims abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 4
- 239000000872 buffer Substances 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
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- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
- Headphones And Earphones (AREA)
Abstract
Technical field of electronic products is the utility model is related to, especially a kind of earphone control system.It includes controlling module, audio-frequency information acquisition module, acceleration sensing module and the energy-storage battery module being linked in sequence, on-off circuit module, boosting filtration module and power amplifier module in earphone；Audio-frequency information acquisition module is connected with controlling module radio communication in earphone, and on-off circuit module and acceleration sensing module are directly connected with controlling module in earphone.The utility model carries out power amplification output using power amplifier module to the audio signal exported by audiogenic device, the improper voice signal in environment is acquired using audio-frequency information acquisition module, the action signal of headset body is acquired using acceleration sensing module, make in earphone control module after improper voice signal is received or judge headset body time of repose reach preset time after, loop between controlling switch circuit module off time energy accumulation battery module and boosting filtration module, makes power amplifier module dead electricity and closes the earphone of normal work.
Description
Technical field
Technical field of electronic products is the utility model is related to, especially a kind of earphone control system.
Background technology
It is known, the product of a kind of earphone audio frequency process relatively conventional in being people's daily life and working and output.So
And the presence in terms of bulk properties and practical performance of existing earphone greatly improves space, it is mainly reflected in：1st, industry
The interior improvement to Portable earphone focuses primarily upon weight and portable two convenience, because its internal control circuit and system are set
That counts is not very reasonable, causes the audio output effect of Portable earphone can not effectively to be lifted all the time；2nd, when people wear
Earphone is carried out when prolonged music is listened to (especially in a sleep state), it is easy to duct is caused to damage, so as to because of it
Hearing；3rd, when wearing earphone is being walked on road, due to the sound (sound of blowing a whistle of such as vehicle of external environment condition can not be obtained
Sound), it is easy to cause personal safety accident；4th, Control system architecture is complicated, improve to a certain extent earphone cost and
Fault rate.
Utility model content
For above-mentioned the shortcomings of the prior art, the purpose of this utility model is to provide a kind of earphone control system.
To achieve these goals, the utility model adopts the following technical scheme that：
A kind of earphone control system, it includes energy-storage battery module, the audio of voice signal for gathering external environment condition
Information acquisition module, the acceleration sensing module of action signal for gathering headset body, for what is exported to audiogenic device
Power amplifier module, the voltage for being exported to energy-storage battery module that audio signal carries out power amplification and exported boost
And voltage stabilizing processing be powered to power amplifier module boosting filtration module, for control energy-storage battery module with boosting filter
The on-off circuit module of loop break-make between ripple module and for according to audio-frequency information acquisition module and acceleration sensing mould
The signal of block input carries out controlling module in the earphone of keying control to on-off circuit module；
The audio-frequency information acquisition module is connected with controlling module radio communication in earphone, the energy-storage battery module, switch
Circuit module, boosting filtration module and power amplifier module are linked in sequence, the acceleration sensing module and on-off circuit module
It is connected simultaneously with controlling module in earphone.
Preferably, the audio-frequency information acquisition module includes Electret condenser microphone sensor, the first triode, the two or three pole
Pipe, LM567 types tone decoder and CC2430 type wireless launchers；The Electret condenser microphone sensor is serially connected with the first triode
Base stage and emitter stage between, the colelctor electrode of first triode is defeated in the audio of tone decoder by the first capacitance connection
Enter pin, the logic output pin of the tone decoder is connected with the input of wireless launcher, second triode
Base stage and emitter stage are connected with the logic output pin of tone decoder simultaneously；
It is defeated for receiving wireless launcher including a CD4046 type phaselocked loop integrated chips and one that module is controlled in the earphone
The CC2430 type wireless receivers of the wireless signal gone out, the wireless receiver, on-off circuit module and acceleration sensing module
It is connected respectively with phaselocked loop integrated chip.
Preferably, the on-off circuit module includes a SI2301 type FETs, the grid and ear of the FET
Connected module, the output end of source electrode connection energy-storage battery module, the input of drain electrode connection boosting filtration module are controlled in machine.
Preferably, the boosting filtration module includes an AX5302 types boost pressure controller and a N-channel MOS pipe, the liter
The enabled pin and power pins of pressure controller are connected with the output end of on-off circuit module simultaneously, the grid of the N-channel MOS pipe
Pole and source electrode are connected respectively with the control input pin and sampling input pin of boost pressure controller, drained while and boost pressure controller
Enabled pin be connected with the power input of power amplifier module.
Preferably, the power amplifier module includes AD797 types operational amplifier and a BUF634 type buffers, the fortune
Output end of the power input of amplifier and buffer simultaneously with the filtration module that boosts is calculated to be connected, the operational amplifier it is anti-
Phase input is connected by a duplex potentiometer with the audio signal output interface of audiogenic device, output end is connected to buffer
Input, the output end of the buffer is as audio signal output end.
As a result of such scheme, the utility model is believed the audio exported by audiogenic device using power amplifier module
Number carry out power amplification output, the improper voice signal in environment is acquired using audio-frequency information acquisition module, utilize
Acceleration sensing module is acquired to the action signal of headset body, control module in earphone is being received improper sound letter
After number or judge headset body time of repose reach preset time after, controlling switch circuit module off time energy accumulation battery module
Loop between boosting filtration module, makes power amplifier module dead electricity and closes the earphone of normal work；The letter of its system architecture
Single, utility function is enriched, sound output and quality can be protected, and has very strong practical value and marketing valency
Value.
Brief description of the drawings
Fig. 1 is the system control principle block diagram of the utility model embodiment；
Fig. 2 is the circuit structure reference chart of the control section of the utility model embodiment；
Fig. 3 is the circuit structure reference chart of the boosting filtration module of the utility model embodiment；
Fig. 4 is the circuit structure reference chart of the power amplifier module of the utility model embodiment.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
As shown in Figures 1 to 4, a kind of earphone control system that the present embodiment provides, it includes controlling module a, sound in earphone
Frequency information acquisition module b, acceleration sensing module c and the energy-storage battery module d being linked in sequence, on-off circuit module e, boosting
Filtration module f and power amplifier module g；Wherein：
Audio-frequency information acquisition module b is mainly used in gathering the voice signal of external environment condition and by the frequency to voice signal
The judgement (such as distinguish normal sound of speaking and vehicle blow a whistle sound) to improper sound is realized in surface analysis, its with earphone
Control module a is coupled for the control module a in earphone in a manner of radio communication to be exported to audio-frequency information acquisition module b
Signal gathered in real time；
The action signal that acceleration sensing module c is mainly used in gathering headset body (is mainly what earphone moved with head
Signal), to enable control module a in earphone to judge whether to close according to the length of acceleration sensing module c silence period
The earphone of normal work, it is directly connected with controlling module a in earphone；
Energy-storage battery module d mainly from least one lithium ion battery and with charge-discharge control circuit form, in order to
Whole system provides normally operating voltage with electrical component；
Power amplifier module g is mainly used in putting the audio signal progress power exported by the audiogenic device such as mobile phone A
Greatly and export to strengthen earpiece audio output effect；
Boosting filtration module f be mainly used in energy-storage battery module d output voltage boosted and voltage stabilizing processing with to
Power amplifier module g provides operating voltage；
On-off circuit module e is mainly used in the loop break-make for controlling energy-storage battery module d between the filtration module f that boosts,
It is connected with controlling module a in earphone simultaneously, to control module a in earphone according to audio-frequency information acquisition module b and acceleration sensing
The signal of module c inputs carries out keying control to on-off circuit module e.
With this, by the optimization to earphone control system, using audio-frequency information acquisition module b to exceeding in external environment condition
Improper voice signal in the range of normal frequency is gathered in real time, then can be to headset body using acceleration sensing module c
Action signal gathered in real time；Using controlling the hardware carriers that are provided of module a in earphone and by its Functional Design, when
Module a is controlled in earphone to receive after improper voice signal or judge earphone according to the acceleration sensing module c signals exported
After the time of repose of body reaches preset time, controllable switch circuit module e off time energy accumulation battery module d and boosting filtering mould
Loop between block e, so as to close the earphone of normal work because of power amplifier module g dead electricity；Utilize power amplification mould simultaneously
Block g can carry out power amplification output to the audio signal exported by audiogenic device A, so as to ensure the audio output of whole earphone
Power and quality.Based on this, the earphone control system of the present embodiment is not only able to be lifted the audio output effect of earphone, Er Qieke
The utility function of automatic shutdown is carried out according to the action relationships of outside environmental sounds and earphone in itself.
To ensure that audio-frequency information acquisition module b can gather the sound in environment exactly, think that module a is controlled in earphone to be made
Go out accurately action and foundation is provided, as shown in Fig. 2 the audio-frequency information acquisition module b of the present embodiment is mainly passed by Electret condenser microphone
The members such as sensor N, the first triode Q1, second triode Q2, LM567 type tone decoder U1 and CC2430 type wireless launcher U2
Device is formed；Wherein, Electret condenser microphone sensor N is serially connected between the first triode Q1 base stage and emitter stage, the one or three pole
Pipe Q1 colelctor electrode is connected to tone decoder U1 audio input pin, tone decoder U1 logic by the first electric capacity C1
Output pin is connected with wireless launcher U2 input, the second triode Q2 base stage and emitter stage while and tone decoder
U1 logic output pin is connected；Meanwhile module a is controlled in earphone then mainly by a CD4046 types phaselocked loop integrated chip U3 and one
The components such as the CC2430 type wireless receivers U4 of wireless signal for receiving wireless launcher U2 outputs are formed, wireless receiving
Device U4, on-off circuit module e and acceleration sensing module c are connected with phaselocked loop integrated chip U3 respectively.Thus, using electret
Body microphone sensor N gathers the voice signal in environment, passes through the first triode Q1 and the such as resistance, electric capacity that coordinate with it
Voice signal is amplified Deng component and exported to tone decoder U1, utilizes tone decoder U1 audio input pin
Shu enters Fu Du≤25mV, frequency when it sets the signal in bandwidth, and logic output pin can switch to low level by high level
The characteristics of, tone decoder U1 centre frequency and bandwidth can be set, can (such as vehicle be blown a whistle with the sound of external environment condition
Sound) frequency be consistent, when collect vehicle blow a whistle sound when, whole tone decoder U1 can export low level, and utilize wireless
Transmitter U2 then can be to tone decoder U1 output carry out continual scanning, if finding low level, it can be to wirelessly connecing
Receive device U1 and send low level, so that the level signal that phaselocked loop integrated chip U3 can receive according to wireless receiver U1
Keying control is carried out to on-off circuit module e, at the same time, phaselocked loop integrated chip U3 detects acceleration sensing module c simultaneously
Signal, to judge whether the break period of this signal reaches preset time to decide whether to open on-off circuit module e
Close control.
To optimize the circuit structure of whole system to greatest extent, as shown in Fig. 2 the on-off circuit module e of the present embodiment
Mainly it is made up of a SI2301 type FETs Q3, it (is specially phaselocked loop collection that module a is controlled in FET Q3 grid and earphone
Into chip U3) connected, source electrode connects energy-storage battery module d output end, draining then connects boosting filtration module f input.
Can be to returning between energy-storage battery module d and boosting filtration module f using the FET Q3 function that turns on and off with this
Road break-make control offer condition.
As a preferred scheme, as shown in figure 3, the boosting filtration module f of the present embodiment is mainly by an AX5302 type liters
The component such as pressure controller U5, a N-channel MOS pipe Q4 and several electric capacity, resistance and diode is formed；Wherein, boost
Controller U5 enabled pin and power pins is connected with on-off circuit module e output end simultaneously, N-channel MOS pipe Q4 grid
Pole and source electrode are connected respectively with boost pressure controller U5 control input pin and sampling input pin, drained while and boosting rectifier control
Device U5 enabled pin is connected with power amplifier module g power input.Thus, can be realized entirely using boost pressure controller U5
Anti- startup overshoot, current limit and the Thermal shutdown defencive function of module or whole control system, think that power amplifier module g is carried
For stable supply voltage.
To optimize the performance of whole system to greatest extent, ensure the quality of audio output, as shown in figure 4, the present embodiment
Power amplifier module g be mainly made up of AD797 types operational amplifier A 1 and a BUF634 type buffers A2, operational amplifier A 1
With buffer A2 power input output end (being specially N-channel MOS pipe Q4 drain electrode) phase with the filtration module f that boosts simultaneously
Even, the audio signal output interface phase that the inverting input of operational amplifier A 1 passes through a duplex potentiometer R and audiogenic device A
Even, output end is connected to buffer A2 input, and audio of the buffer A2 output end then as whole control system is believed
Number output end.Thus, by the audio signal that audiogenic device A is exported via duplex potentiometer R after, using R pairs of duplex potentiometer
Sound is adjusted (i.e.：Make the regulation of sound field size and low-and high-frequency extensibility by increasing or reducing resistance), believe in audio
It can be exported after number entering operational amplifier A 1 by voltage amplification to buffer A2, in utilization buffer A2 to the electricity of audio signal
Directly output after stream is amplified.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or directly or indirectly fortune
Used in other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (5)
- A kind of 1. earphone control system, it is characterised in that：It includes energy-storage battery module, believed for gathering the sound of external environment condition Number audio-frequency information acquisition module, action signal for gathering headset body acceleration sensing module, for being set to source of sound Power amplifier module, the voltage for being exported to energy-storage battery module that the audio signal of standby output carries out power amplification and exported Boosted and voltage stabilizing processing be powered to power amplifier module boosting filtration module, for controlling energy-storage battery module Boosting filtration module between loop break-make on-off circuit module and for according to audio-frequency information acquisition module and acceleration The signal of degree sensing module input carries out controlling module in the earphone of keying control to on-off circuit module；The audio-frequency information acquisition module is connected with controlling module radio communication in earphone, the energy-storage battery module, on-off circuit Module, boosting filtration module and power amplifier module are linked in sequence, and the acceleration sensing module and on-off circuit module are simultaneously It is connected with controlling module in earphone.
- A kind of 2. earphone control system as claimed in claim 1, it is characterised in that：The audio-frequency information acquisition module includes staying Electret microphone sensor, the first triode, the second triode, LM567 types tone decoder and CC2430 type wireless launchers；Institute State Electret condenser microphone sensor to be serially connected between base stage and the emitter stage of the first triode, the colelctor electrode of first triode leads to The first capacitance connection is crossed in the audio input pin of tone decoder, the logic output pin of the tone decoder and wireless hair The input of emitter is connected, the base stage and emitter stage of second triode while the logic output pin phase with tone decoder Even；Module is controlled in the earphone includes a CD4046 type phaselocked loop integrated chips and one for receiving wireless launcher output The CC2430 type wireless receivers of wireless signal, the wireless receiver, on-off circuit module and acceleration sensing module difference It is connected with phaselocked loop integrated chip.
- A kind of 3. earphone control system as claimed in claim 1, it is characterised in that：The on-off circuit module includes one SI2301 type FETs, the grid of the FET is with controlling that module is connected, source electrode connects energy-storage battery module in earphone The input of output end, drain electrode connection boosting filtration module.
- A kind of 4. earphone control system as claimed in claim 1, it is characterised in that：The boosting filtration module includes one AX5302 types boost pressure controller and a N-channel MOS pipe, the enabled pin and power pins of the boost pressure controller simultaneously with switch The output end of circuit module is connected, the grid and source electrode of the N-channel MOS pipe control input pin with boost pressure controller respectively It is connected with sampling input pin, drain the power input phase with the enabled pin and power amplifier module of boost pressure controller simultaneously Even.
- A kind of 5. earphone control system as any one of claim 1-4, it is characterised in that：The power amplifier module It is same including AD797 types operational amplifier and a BUF634 type buffers, the power input of the operational amplifier and buffer When with boost filtration module output end be connected, the inverting input of the operational amplifier passes through a duplex potentiometer and source of sound The audio signal output interface of equipment is connected, output end is connected to the input of buffer, the output end conduct of the buffer Audio signal output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738561.0U CN206932369U (en) | 2017-06-23 | 2017-06-23 | A kind of earphone control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720738561.0U CN206932369U (en) | 2017-06-23 | 2017-06-23 | A kind of earphone control system |
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| Publication Number | Publication Date |
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| CN206932369U true CN206932369U (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720738561.0U Expired - Fee Related CN206932369U (en) | 2017-06-23 | 2017-06-23 | A kind of earphone control system |
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| Country | Link |
|---|---|
| CN (1) | CN206932369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113811848A (en) * | 2019-05-06 | 2021-12-17 | 苹果公司 | Apparatus, method and user interface for adaptively providing audio output |
-
2017
- 2017-06-23 CN CN201720738561.0U patent/CN206932369U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113811848A (en) * | 2019-05-06 | 2021-12-17 | 苹果公司 | Apparatus, method and user interface for adaptively providing audio output |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 |