CN105207722B - A kind of intelligent jamproof system and its anti-interference method - Google Patents
A kind of intelligent jamproof system and its anti-interference method Download PDFInfo
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Abstract
The invention discloses a kind of intelligent jamproof system and its anti-interference method.Intelligent jamproof system includes the anti-interference terminal of intelligence and audio frequency apparatus, audio frequency apparatus is connected with the anti-interference terminal of intelligence, the anti-interference terminal of intelligence includes detection module, main control singlechip module and the two-way selector module being sequentially connected, detection module is used to detect the impedance existing for audio frequency apparatus relatively, use reference voltage by the impedance conversion detected for corresponding magnitude of voltage, and magnitude of voltage is output to main control singlechip module；Main control singlechip module is used to magnitude of voltage being converted into data signal, and judge that audio frequency apparatus is common mode output or differential mode output, two-way selector module is opened according to judged result, and export corresponding control command to two-way selector module, two-way selector module is used for the noise suicide circuit according to corresponding to the control command startup that main control singlechip module inputs and carries out noise reduction and denoising Processing to audio signal, so as to substantially increase tonequality.
Description
Technical field
The present invention relates to technical field of electronic products, more particularly to a kind of intelligent jamproof system and its anti-interference method.
Background technology
In the modern life, electronic product intellectuality has turned into the main trend of industry development, smart mobile phone, smart home, puts down
The end products such as plate computer, car networking, intelligence wearing are more and more, and use is more and more frequent, and user is generally by using intelligence
Bluetooth function in terminal carries out mutual transmission data, or the standard agreement provided by bluetooth to control bluetooth equipment
The broadcasting of song suspends and changes song, or is connected by cable.And because power network, wireless network and various smart electronicses products are mutual
Crosstalk, produce audio disturbances.
Conventionally, as different electronic products is different according to self character, the audio output mode of use is big
Cause is divided into differential mode output and exported with common mode, and grounded part is also classified into floating ground, single-point grounding, multipoint earthing, mixing ground connection.Existing skill
After the voice frequency terminal of art is connected with the said equipment, because the earth point of input is using fixed single-point grounding, cause to input
Impedance can not compatible all electronic equipments, when these equipment applications are in identical power network, High-frequency Interference will be produced.Can not
Meets the needs of people are to smart electronicses product.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of intelligent jamproof system and its resist dry
Disturb method, it is intended to solve existing voice frequency terminal with electronic equipment because the earth point of input uses fixed single-point grounding,
Cause input impedance can not compatible all electronic equipments and the technical problem of High-frequency Interference be present.
Technical scheme provided by the invention is：A kind of intelligent jamproof system, including the anti-interference terminal of intelligence and audio are set
Standby, the audio frequency apparatus be connected with intelligence anti-interference terminal, the anti-interference terminal of intelligence including be sequentially connected detection module,
Main control singlechip module and two-way selector module, the detection module are used to detect the resistance existing for audio frequency apparatus relatively
It is anti-, use reference voltage by the impedance conversion detected for corresponding magnitude of voltage, and magnitude of voltage is output into main control singlechip mould
Block；The main control singlechip module is used to magnitude of voltage being converted into data signal, and judges that audio frequency apparatus is that common mode output is gone back
It is differential mode output, two-way selector module is opened according to judged result, and corresponding control life is exported to two-way selector module
Order, the two-way selector module are used for the noise according to corresponding to the control command startup that main control singlechip module inputs and eliminate electricity
Road carries out noise reduction and denoising Processing to audio signal.
Technical scheme also includes：The anti-interference terminal of intelligence also includes signal amplification module, the signal
Amplification module is connected with two-way selector module, for being exported after the audio signal pre-amplification after denoising Processing, and root
The power-saving control instruction sent according to main control singlechip module enters battery saving mode.
Technical scheme also includes：The anti-interference terminal of intelligence also includes noise isolation module, the noise
Isolation module is connected with detection module and two-way selector module respectively, and the detection module receives the audio of audio frequency apparatus output
Signal, and the audio signal received is exported to noise isolation module, the noise isolation module is used to receive detection module
The audio signal of input, the input of audio frequency apparatus and the anti-interference terminal of intelligence are subjected to isolation processing, and audio signal is defeated
Go out to the processing of two-way selector module Awaiting Triage.
Technical scheme also includes：The anti-interference terminal of intelligence also includes efficiency detection module, the efficiency
Detection module is connected with two-way selector module and main control singlechip module respectively, for entering to the audio signal after denoising Processing
Output to main control singlechip module, the main control singlechip module is sentenced according to energy efficiency state after row amplifies and changes into control signal
It is disconnected whether to enter battery saving mode, and power-saving control instruction is sent to the signal amplification module according to judged result.
Technical scheme also includes：The two-way selector module also includes signal storage unit, common mode is made an uproar
Sound arrester unit and differential mode noise arrester unit, the signal storage unit respectively with common-mode noise arrester unit and
Differential mode noise arrester unit is connected, and common-mode noise arrester unit and differential mode noise the arrester unit is examined with efficiency respectively
Module is surveyed to connect with signal amplification module,
The signal storage unit is used for the audio signal for storing the output of noise isolation module；
The common-mode noise arrester unit is used to utilize diode list when receiving common-mode noise and eliminating control command
To conductive characteristic and directionality impedance operator and electric capacity composition filter circuit, the audio signal in signal storage unit is carried out
Noise reduction is respectively outputted to efficiency detection module and signal amplification mould with eliminating noise processed, and by the audio signal after denoising Processing
Block；
The differential mode noise arrester unit is used to utilize differential mode circuit when receiving differential mode noise and eliminating control command
The noise that electromagnetic disturbance caused by power network in audio signal in signal storage unit is propagated along power line is suppressed, passes through ratio
Compared with calculating, noise voltage value is obtained, Ripple Suppression, suppresses function using amplifier common mode and abates the noise, then filtered device is by nothing
With target signal filter, and the audio signal after denoising Processing is respectively outputted to efficiency detection module and signal amplification module.
Technical scheme also includes：The anti-interference terminal of intelligence includes audio amplifier, intelligence wearing product or wireless
Audio amplifier, the audio frequency apparatus include sound equipment, home appliance interconnection, communication apparatus, mobile phone, tablet personal computer, PC, desk lamp or audio amplifier.
Another technical scheme provided by the invention is：A kind of anti-interference method of intelligent jamproof system, including following step
Suddenly：
Step a：Impedance existing for audio frequency apparatus relatively is detected by detection module, will be detected using reference voltage
Impedance conversion be corresponding magnitude of voltage, and magnitude of voltage is output to main control singlechip module；
Step b：The magnitude of voltage of detection module output is received by main control singlechip module, magnitude of voltage is converted into digital letter
Number and judge audio frequency apparatus be common mode output or differential mode output, according to judged result open two-way selector module, and to
Two-way selector module exports corresponding control command；
Step c：By two-way selector module control command, and the noise suicide circuit according to corresponding to starting control command
Noise reduction and denoising Processing are carried out to audio signal.
Technical scheme also includes：The step a also includes：Receive what audio frequency apparatus exported by detection module
Audio signal, and the audio signal received is exported to noise isolation module, received and detected by the noise isolation module
The audio signal of module input, and after the input of audio frequency apparatus is carried out into isolation processing with intelligence anti-interference terminal, by audio
Signal output is to two-way selector module.
Technical scheme also includes：The step c is specifically included：
Step c1：Control command is received by two-way selector module, and judges that the order is that common-mode noise eliminates control
Order or differential mode noise eliminate control command, if common-mode noise eliminates control command, perform step c2；If differential mode
Noise eliminates control command, performs step c3；
Step c2：Start common-mode noise arrester unit, utilize diode unilateal conduction characteristic and directionality impedance operator
Filter circuit is formed with electric capacity, noise reduction is carried out with eliminating noise processed to the audio signal of two-way selector module storage, and hold
Row step c4；
Step c3：Start differential mode noise arrester unit, believed the audio in signal storage unit using differential mode circuit
The noise that electromagnetic disturbance caused by power network is propagated along power line in number suppresses, and is calculated by comparing, and obtains noise voltage value, ripple
Suppress, suppressing function using amplifier common mode abates the noise, then filtered device filters out garbage signal；
Step c4：Audio signal after denoising Processing is output to signal amplification module, will be disappeared by signal amplification module
Exported after the audio signal pre-amplification after handling of making an uproar.
Technical scheme also includes：The step c4 also includes：Audio signal after denoising Processing is output to
Efficiency detection module, after being amplified to the audio signal after denoising Processing by efficiency detection module and change into control signal
To main control singlechip module, the main control singlechip module judges whether to enter battery saving mode, and root according to energy efficiency state for output
It is judged that result sends power-saving control instruction to signal amplification module, signal amplification module power-saving control instruction, which enters, to be saved
Power mode.
Technical scheme has the following advantages that or beneficial effect：The intelligent jamproof system of the embodiment of the present invention and
Its anti-interference method judges the earthing mode of audio frequency apparatus, root according to impedance by detecting the earth impedance size of audio frequency apparatus
Start different noise suicide circuit according to earthing mode audio signal abate the noise and export again after processing, eliminate
Interference caused by the electrical potential difference of traditional grid equipment difference earth point, eliminate such as different acoustic, home appliance interconnection, communication and set
Standby, mobile phone, the equipment InterWorking Equipment of wireless network, Apple Computers and noise jamming caused by universal PC interconnection connection, so that
Equipment obtains the signal of real low distortion, substantially increases tonequality, and is advantageous to save energy consumption.
Brief description of the drawings
Fig. 1 is the structural representation of the intelligent jamproof system of the embodiment of the present invention；
Fig. 2 is the flow chart of the anti-interference method of the intelligent jamproof system of the embodiment of the present invention.
Embodiment
The present invention provides a kind of intelligent jamproof system, for make the purpose of the present invention, technical scheme and effect it is clearer,
Clearly, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only explaining this
Invention, is not intended to limit the present invention.
Referring to Fig. 1, the structural representation of the intelligent jamproof system for the embodiment of the present invention.The intelligence of the embodiment of the present invention
Energy jamproof system includes the anti-interference terminal 100 of intelligence and audio frequency apparatus 200, audio frequency apparatus 200 and the anti-interference terminal 100 of intelligence
Connection, the anti-interference terminal 100 of intelligence specifically include detection module 101, noise isolation module 102, main control singlechip module 103,
Two-way selector module 104, efficiency detection module 105 and signal amplification module 106, wherein,
Detection module 101 is connected with noise isolation module 102 and main control singlechip module 103 respectively, for receiving audio
The audio signal that equipment 200 exports, and the audio signal received is exported to noise isolation module 102 and waits further place
Reason；Meanwhile detection module 101 detects the relatively impedance of (abbreviation between phase line and ground wire) existing for audio frequency apparatus 200, adopts
By the impedance conversion detected it is corresponding magnitude of voltage with reference voltage, and magnitude of voltage is output to main control singlechip module 103；
Noise isolation module 102 is connected with two-way selector module 104, for receiving the audio of the input of detection module 101
Signal, and the input of audio frequency apparatus 200 and the anti-interference terminal 100 of intelligence are subjected to isolation processing, avoid two connection equipment
Between the anti-matching problem of master caused by mutual crosstalk, and audio signal is output to two-way selector module 104, Awaiting Triage
Processing；
Main control singlechip module 103 is connected with two-way selector module 104 and signal amplification module 106 respectively, for connecing
The magnitude of voltage that detection module 101 exports is received, magnitude of voltage is converted into data signal using the ADC (more A/D converters) of inside
And after accurate calculate, it is common mode output or differential mode output to judge audio frequency apparatus 200, and two-way choosing is opened according to judged result
Device module 104 is selected, and corresponding control command is exported to two-way selector module 104；Wherein, audio frequency apparatus 200 is that common mode is defeated
Go out or the judgment mode of differential mode output is：Due to floating different impedances be present from ground connection, if reference resistance now over the ground
Value is very low, you can judges audio frequency apparatus 200 for ground connection, as common mode exports；Similarly, if impedance now over the ground is very big,
Audio frequency apparatus 200 can be judged for floating ground, as differential mode exports；The control command that main control singlechip module 103 exports is specific
Control command is eliminated for common-mode noise and differential mode noise eliminates control command；
Two-way selector module 104 is used for the audio signal and main control singlechip for receiving the output of noise isolation module 102
The control command that module 103 exports, and noise suicide circuit is carried out accordingly to audio signal according to corresponding to starting control command
Noise reduction and denoising Processing；Specifically, two-way selector module 104 includes signal storage unit 107, common-mode noise arrester
Unit 108 and differential mode noise arrester unit 109, signal storage unit 107 respectively with common-mode noise arrester unit 108 and
Differential mode noise arrester unit 109 connects, common-mode noise arrester unit 108 and differential mode noise arrester unit 109 respectively with
Efficiency detection module 105 and signal amplification module 106 connect,
Signal storage unit 107 is used for the audio signal for storing the output of noise isolation module 102；
Common-mode noise arrester unit 108 is used for unidirectional using diode when receiving common-mode noise and eliminating control command
Conductive characteristic and directionality impedance operator and electric capacity composition filter circuit, enter to the audio signal in signal storage unit 107
Audio signal after denoising Processing is respectively outputted to efficiency detection module 105 and signal by row noise reduction with eliminating noise processed
Amplification module 106；
Differential mode noise arrester unit 109 is used for will using differential mode circuit when receiving differential mode noise and eliminating control command
The noise that electromagnetic disturbance caused by power network is propagated along power line in audio signal in signal storage unit 107 suppresses, and passes through
Compare calculating, obtain noise voltage value, Ripple Suppression, suppress function using amplifier common mode and abate the noise, then filtered device will
Garbage signal is filtered out, and the audio signal after denoising Processing is respectively outputted into efficiency detection module 105 and signal amplification module
106；Wherein, the noise-cancellation parameters of common-mode noise arrester unit 108 and differential mode noise arrester unit 109 can be according to reality
Using being adjusted, to reach optimal matching effect.
Efficiency detection module 105 is connected with main control singlechip module 103, for the He of common-mode noise arrester unit 108
Audio signal after the denoising Processing of differential mode noise arrester unit 109 is amplified and exported after changing into control signal to master control
One-chip computer module 103, main control singlechip module 103 judges whether to enter battery saving mode according to energy efficiency state, and is tied according to judgement
Fruit sends power-saving control instruction to signal amplification module；
Signal amplification module 106 is used for common-mode noise arrester unit 108 and the de-noising of differential mode noise arrester unit 109
Exported after audio signal pre-amplification after processing, and the power-saving control instruction sent according to main control singlechip module enters province
Power mode；This invention removes caused by the electrical potential difference of traditional grid equipment difference earth point interference, eliminate as different acoustic,
Home appliance interconnection, communication apparatus, mobile phone, the equipment InterWorking Equipment of wireless network, Apple Computers and universal PC interconnection connection are made
Into noise jamming so that equipment obtains the signal of real low distortion, substantially increase tonequality, and be advantageous to save energy
Consumption.
In embodiments of the present invention, the anti-interference terminal 100 of intelligence can be audio amplifier, intelligence wearing product or wireless sound box
Deng the type of audio frequency apparatus 200 includes sound equipment, home appliance interconnection, communication apparatus, mobile phone, tablet personal computer, PC, desk lamp or sound
Case etc..
The embodiment provided in patent of the present invention, the present invention is incorporated in an application in the anti-interference terminal of intelligence
All applications, i.e., only need to apply patented technology terminal device of the present invention, no matter connected equipment be common mode output also
It is differential mode output, noise will not be produced when other connected audio-frequence player devices can be made to be output to this intelligent terminal.
So as to simplify complicated de-noising design of the prior art, tonequality is substantially increased.
Referring to Fig. 2, the flow chart of the anti-interference method for the intelligent jamproof system of the embodiment of the present invention.It is of the invention real
Apply the anti-interference terminal of intelligence and audio frequency apparatus that the intelligent jamproof system of example includes being connected with each other, the intelligence of the embodiment of the present invention
The anti-interference method of jamproof system comprises the following steps：
S1：By detection module receive audio frequency apparatus export audio signal, and by the audio signal received export to
Noise isolation module, wait further processing；Meanwhile the impedance existing for audio frequency apparatus relatively is detected, using benchmark electricity
The impedance conversion detected is corresponding magnitude of voltage by pressure, and magnitude of voltage is output into main control singlechip module；
S2：The audio signal of detection module input is received, and the input of audio frequency apparatus and the anti-interference terminal of intelligence are entered
Row isolation processing, mutual crosstalk caused by the anti-matching problem of master between two connection equipment is avoided, and audio signal is exported
To two-way selector module, Awaiting Triage processing；
S3：Audio signal is received by two-way selector module, and audio signal is stored；
S4：The magnitude of voltage of detection module output is received by main control singlechip module, is turned magnitude of voltage using the ADC of inside
Turn to data signal and after accurate calculate, it is common mode output or differential mode output to judge audio frequency apparatus, according to judged result
Two-way selector module is opened, and corresponding control command is exported to two-way selector module；
In step s 4, audio frequency apparatus is that common mode exports or the judgment mode of differential mode output is：Due to floating with ground connection
Different impedances be present, if reference resistance now over the ground is very low, you can judge audio frequency apparatus for ground connection, as common mode is defeated
Go out；Similarly, if impedance now over the ground is very big, you can judge audio frequency apparatus for floating ground, as differential mode exports；Master control monolithic
The control command of machine module output is specially that common-mode noise eliminates control command and differential mode noise elimination control command.
S5：Control command is received by two-way selector module, and judges that the order is that common-mode noise eliminates control command
Or differential mode noise eliminates control command, if common-mode noise eliminates control command, step S6 is performed；If differential mode noise
Control command is eliminated, performs step S7；
S6：Start common-mode noise arrester unit, utilize diode unilateal conduction characteristic and directionality impedance operator and electricity
Hold composition filter circuit, noise reduction is carried out with eliminating noise processed to the audio signal of two-way selector module storage, and perform step
Rapid S8；
S7：Start differential mode noise arrester unit, using differential mode circuit by the audio signal in signal storage unit
The noise that electromagnetic disturbance caused by power network is propagated along power line suppresses, and is calculated by comparing, and obtains noise voltage value, ripple suppression
System, suppress function using amplifier common mode and abate the noise, then filtered device filters out garbage signal；
S8：Audio signal after denoising Processing is respectively outputted to efficiency detection module and signal amplification module；
S9：The audio signal after denoising Processing is amplified by efficiency detection module and changed into defeated after control signal
Going out to main control singlechip module, main control singlechip module judges whether to enter battery saving mode according to energy efficiency state, and according to judgement
As a result power-saving control instruction is sent to signal amplification module；
S10：It will be exported by signal amplification module after the audio signal pre-amplification after denoising Processing, and according to master control
The power-saving control instruction that one-chip computer module is sent enters battery saving mode.
The intelligent jamproof system and its anti-interference method of the embodiment of the present invention are by detecting the earth impedance of audio frequency apparatus
Size, the earthing mode of audio frequency apparatus is judged according to impedance, different noise suicide circuits is started to audio according to earthing mode
Signal abate the noise and exported again after processing, caused by the electrical potential difference for eliminating traditional grid equipment difference earth point
Interference, eliminate such as different acoustic, home appliance interconnection, communication apparatus, mobile phone, the equipment InterWorking Equipment of wireless network, apple electricity
Brain and noise jamming caused by universal PC interconnection connection, so that equipment obtains the signal of real low distortion, are substantially increased
Tonequality, and be advantageous to save energy consumption.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of intelligent jamproof system, including the anti-interference terminal of intelligence and audio frequency apparatus, the audio frequency apparatus are anti-dry with intelligence
Disturb terminal connection, it is characterised in that the anti-interference terminal of intelligence includes detection module, the main control singlechip module being sequentially connected
With two-way selector module, the detection module is used to detect the impedance existing for audio frequency apparatus relatively, using reference voltage
It is corresponding magnitude of voltage by the impedance conversion detected, and magnitude of voltage is output to main control singlechip module；The master control monolithic
Machine module is used to magnitude of voltage being converted into data signal, and judges that audio frequency apparatus is that common mode output or differential mode export, according to
Judged result opens two-way selector module, and exports corresponding control command, the two-way selection to two-way selector module
Device module is used for the noise suicide circuit according to corresponding to starting the control command that main control singlechip module inputs and audio signal is entered
Row noise reduction and denoising Processing.
2. intelligent jamproof system according to claim 1, it is characterised in that the anti-interference terminal of intelligence also includes letter
Number amplification module, the signal amplification module is connected with main control singlechip module and two-way selector module respectively, for offseting
Exported after the audio signal pre-amplification after handling of making an uproar, and the power-saving control sent according to main control singlechip module is instructed and entered
Battery saving mode.
3. intelligent jamproof system according to claim 1, it is characterised in that the anti-interference terminal of intelligence also includes making an uproar
Module is acoustically separated from, the noise isolation module is connected with detection module and two-way selector module respectively, and the detection module connects
The audio signal of audio frequency apparatus output is received, and the audio signal received is exported to noise isolation module, the noise isolation
Module is used for the audio signal for receiving detection module input, and the input of audio frequency apparatus is isolated with the anti-interference terminal of intelligence
Processing, and audio signal is output to the processing of two-way selector module Awaiting Triage.
4. intelligent jamproof system according to claim 2, it is characterised in that the anti-interference terminal of intelligence also includes energy
Detection module is imitated, the efficiency detection module is connected with two-way selector module and main control singlechip module respectively, for offseting
The audio signal after handling of making an uproar is amplified and exported after changing into control signal to main control singlechip module, the master control monolithic
Machine module judges whether to enter battery saving mode according to energy efficiency state, and is sent and saved to the signal amplification module according to judged result
Electric control instructs.
5. the intelligent jamproof system according to claim 3 or 4, it is characterised in that the two-way selector module also wraps
Include signal storage unit, common-mode noise arrester unit and differential mode noise arrester unit, the signal storage unit point
It is not connected with common-mode noise arrester unit and differential mode noise arrester unit, the common-mode noise arrester unit and differential mode are made an uproar
Sound arrester unit is connected with efficiency detection module and signal amplification module respectively,
The signal storage unit is used for the audio signal for storing the output of noise isolation module；
The common-mode noise arrester unit is used to unidirectionally lead using diode when receiving common-mode noise and eliminating control command
Electrical characteristics and directionality impedance operator and electric capacity composition filter circuit, noise reduction is carried out to the audio signal in signal storage unit
With eliminating noise processed, and the audio signal after denoising Processing is respectively outputted to efficiency detection module and signal amplification module；
The differential mode noise arrester unit is used to using differential mode circuit to believe when receiving differential mode noise and eliminating control command
The noise that electromagnetic disturbance caused by power network is propagated along power line in audio signal in number memory cell suppresses, by comparing meter
Calculate, obtain noise voltage value, Ripple Suppression, suppress function using amplifier common mode and abate the noise, then filtered device is by useless letter
Number filter out, and the audio signal after denoising Processing is respectively outputted to efficiency detection module and signal amplification module.
6. the intelligent jamproof system stated according to claim 1, it is characterised in that the anti-interference terminal of intelligence include audio amplifier,
Intelligence wearing product or wireless sound box, the audio frequency apparatus include sound equipment, home appliance interconnection, communication apparatus, mobile phone, flat board electricity
Brain, PC, desk lamp or audio amplifier.
7. a kind of anti-interference method of intelligent jamproof system, it is characterised in that comprise the following steps：
Step a：Impedance existing for audio frequency apparatus relatively, the resistance that will be detected using reference voltage are detected by detection module
Anti-rotation turns to corresponding magnitude of voltage, and magnitude of voltage is output into main control singlechip module；
Step b：The magnitude of voltage of detection module output is received by main control singlechip module, magnitude of voltage is converted into data signal simultaneously
It is common mode output or differential mode output to judge audio frequency apparatus, and two-way selector module is opened according to judged result, and to two-way
Selector module exports corresponding control command；
Step c：Control command, and the noise suicide circuit according to corresponding to starting control command are received by two-way selector module
Noise reduction and denoising Processing are carried out to audio signal.
8. the anti-interference method for the intelligent jamproof system stated according to claim 7, it is characterised in that the step a also includes：
The audio signal of audio frequency apparatus output is received by detection module, and the audio signal received is exported to noise isolation mould
Block, the audio signal that detection module inputs is received by the noise isolation module, and by the input and intelligence of audio frequency apparatus
After anti-interference terminal carries out isolation processing, audio signal is output to two-way selector module.
9. the anti-interference method for the intelligent jamproof system stated according to claim 7, it is characterised in that the step c is specifically wrapped
Include：
Step c1：Control command is received by two-way selector module, and judges that the order is that common-mode noise eliminates control command
Or differential mode noise eliminates control command, if common-mode noise eliminates control command, step c2 is performed；If differential mode noise
Control command is eliminated, performs step c3；
Step c2：Start common-mode noise arrester unit, utilize diode unilateal conduction characteristic and directionality impedance operator and electricity
Hold composition filter circuit, noise reduction is carried out with eliminating noise processed to the audio signal of two-way selector module storage, and perform step
Rapid c4；
Step c3：Start differential mode noise arrester unit, using differential mode circuit by the audio signal in signal storage unit
The noise that electromagnetic disturbance caused by power network is propagated along power line suppresses, and is calculated by comparing, and obtains noise voltage value, ripple suppression
System, suppress function using amplifier common mode and abate the noise, then filtered device filters out garbage signal；
Step c4：Audio signal after denoising Processing is output to signal amplification module, by signal amplification module by de-noising
Exported after audio signal pre-amplification after reason.
10. the anti-interference method for the intelligent jamproof system stated according to claim 9, it is characterised in that the step c4 is also wrapped
Include：Audio signal after denoising Processing is output to efficiency detection module, by efficiency detection module to the sound after denoising Processing
Output is to main control singlechip module after frequency signal is amplified and changes into control signal, and the main control singlechip module is according to energy
Whether effect condition adjudgement enters battery saving mode, and sends power-saving control instruction to signal amplification module according to judged result, described
Signal amplification module enters battery saving mode according to power-saving control instruction.
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| CN107748512A (en) * | 2017-09-28 | 2018-03-02 | 深圳市行者机器人技术有限公司 | A kind of antidisturbance control system of biped robot |
| CN113905119A (en) * | 2020-06-22 | 2022-01-07 | 阿里巴巴集团控股有限公司 | Terminal cradle, control method thereof, audio processing method, audio processing system, electronic device, and computer-readable storage medium |
| CN112887052B (en) * | 2021-02-24 | 2023-01-17 | 南方电网调峰调频发电有限公司信息通信分公司 | Mobile anti-interference equipment for telephone conference |
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