CN107566945A - A kind of Multifunctional mobile pull bar audio amplifier - Google Patents
A kind of Multifunctional mobile pull bar audio amplifier Download PDFInfo
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- CN107566945A CN107566945A CN201710898539.7A CN201710898539A CN107566945A CN 107566945 A CN107566945 A CN 107566945A CN 201710898539 A CN201710898539 A CN 201710898539A CN 107566945 A CN107566945 A CN 107566945A
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Abstract
A kind of Multifunctional mobile pull bar audio amplifier, including speaker body, the outside of the speaker body are provided with loudspeaker and control panel, and the inside of the speaker body is provided with audio amplifier control system；The audio amplifier control system includes power module, signal input module, signal DSP processing modules, MCU controllers, wireless amusing module and power amplifier；The signal DSP processing modules include ADC analog-digital converters, DSP and the DAC digital analog converters being sequentially connected, and the signal DSP processing modules connect signal input module, MCU controllers and power amplifier respectively.The invention provides a kind of Multifunctional mobile pull bar audio amplifier, using DSP as core, with multiple functions such as the input of musical instrument guitar, Karaoke, bluetooth/USB flash disk/TF card broadcasting, smart mobile phone and tablet personal computer APP manipulations, it is easy to use, novel functions are various, Mobile loudspeaker box more existing than market is more recreational, fully meets the needs of user is to multi-functional, high-performance mobile sound-box device.
Description
Technical field
The present invention relates to speaker technology field, particularly a kind of Multifunctional mobile pull bar audio amplifier.
Background technology
Modern society, Mobile loudspeaker box are widely applied in many different occasions, and it has become curbside sales field, square
Dance, the small-sized performance in field etc. need the capital equipment used during public address, but most of Mobile loudspeaker boxes at present on the market are main
Form to carry battery and loudspeaker horn, be provided simultaneously with USB flash disk broadcasting, wireless blue tooth plays, plays Karaoka, circuit input interface
Etc. function, for circuit structure then substantially based on analog circuit, function is few and recreational not strong enough, and user can not be met to more work(
Energy, the demand of high-performance mobile sound-box device.
The content of the invention
In order to overcome the disadvantages mentioned above of prior art, it is an object of the invention to provide a kind of Multifunctional mobile pull bar audio amplifier,
Using DSP as core, there is the input of musical instrument guitar, Karaoke, bluetooth/USB flash disk/TF card broadcasting, smart mobile phone
And the multiple functions such as tablet personal computer APP manipulations；Its musical instrument guitar input function has most effects in professional industry, example
Such as former qin, classical distortion, heavy metal distortion, overload, flange, chorus, delay, guitar bullet can be carried out and sing performance；It is played Karaoka
There is function DSP specialties to disappear voice this characteristic, can provide bigger enjoyment to sing；And user can be by intelligent APP in hand
It is functional that the institute of this Multifunctional mobile pull bar audio amplifier is operated on machine or tablet personal computer, it is easy to use, novel functions are various, compare market
Existing Mobile loudspeaker box is more recreational, fully meets the needs of user is to multi-functional, high-performance mobile sound-box device.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Multifunctional mobile pull bar audio amplifier, including sound
Case body, the outside of the speaker body are provided with loudspeaker and control panel, and the inside of the speaker body is provided with audio amplifier control system
System；The audio amplifier control system includes power module, signal input module, signal DSP processing modules, MCU controllers, wireless joy
Happy module and power amplifier；
The power module is used to power to speaker body；
The signal DSP processing modules include ADC analog-digital converters, DSP and the DAC digital-to-analogues being sequentially connected
Converter, wherein, DSP is English Digital Signal Processing abbreviation, is a kind of digital particularly suitable for carrying out
The microprocessor of signal transacting computing, mainly application is to realize various digital signal processing algorithms real-time for it.The DSP
Digital signal processor be used for audio signal is handled, realize guitar effect, Karaoke effect, the voice function that disappears,
The functions such as EQ well-balanced adjustments, volume adjusting；The signal DSP processing modules connect respectively signal input module, MCU controllers and
Power amplifier；
The MCU controllers connect control panel, for carrying out all feature operations and Intelligent treatment to the speaker body；
MCU controllers, i.e. micro-control unit (Microcontroller Unit), also known as one chip microcomputer or single-chip microcomputer, it is
The computer of chip-scale, can be that various combination control is done in different application scenarios.
The DAC digital analog converters connect power amplifier, and the power amplifier connects loudspeaker, for signal DSP
The treated signal of processing module carries out power amplification, then drives loudspeaker to play out；The ADC analog-digital converters connection letter
Number input module, the signal input module include CH1 balanced signals input block, the stereo input blocks of CH3, CH2 balances
Signal input unit and wireless microphone receiving unit；The CH2 balanced signals input block connects wireless microphone receiving unit, institute
State the stereo input block connection wireless amusing modules of CH3；
The wireless amusing module includes bluetooth unit, USB flash disk unit and TF card unit, for realize Bluetooth audio frequency receive, USB flash disk and
TF card is read, and a variety of audio formats such as MP3, WMA, WAV can be supported to play；The wireless amusing module passes through RX/TX serial ports
Communication is connected with MCU controllers.
As a further improvement on the present invention：The control panel is provided with external power supply adaptor interface；The power supply
Module includes external power supply interface circuit, battery charging circuit, battery, electronic switch and DC/DC reduction voltage circuits, described outer
Power interface circuit is put to be connected with battery by battery charging circuit, and it is external by the connection of external power supply adaptor interface
Power supply adaptor；The external power supply adapter is used for for speaker body work power supply and battery is charged, the battery
It is speaker body work power supply during for outdoor use；The electronic switch connect respectively external power supply interface circuit, battery,
DC/DC reduction voltage circuits and power amplifier, the DC/DC reduction voltage circuits connect signal DSP processing modules and MCU controls respectively
Device；The electronic switch is by MCU controller controlling switches, and power module divides duplex feeding when the electronic switch is opened, all the way directly
Connect and supply electricity to power amplifier, another way supplies electricity to signal DSP processing modules and MCU controllers through DC/DC reduction voltage circuits.
As a further improvement on the present invention：The stereo input blocks of CH3 respectively with the CH3 on control panel
Circuit input interface, bluetooth input, USB flash disk interface and TF card groove are connected, the stereo input blocks of CH3 be used for circuit,
The signal input of bluetooth, USB flash disk and TF card；The bluetooth input is with mobile terminal by bluetooth wireless connection, and the movement is eventually
End is provided with audio amplifier control APP；The bluetooth input is used for audio transmission and control data is transmitted, and coordinates the mobile terminal
On audio amplifier control APP, realize intelligent control.The Bluetooth function of the present invention supports recording, also in addition to supporting audio transmission
Control data transmission is supported, is supported the use with the audio amplifier control APP installed on mobile phone, tablet personal computer, effectively realizes intelligent control,
Greatly improve the usage experience of the machine.
As a further improvement on the present invention：The CH1 balanced signals input block respectively with control panel
CH1 circuits input interface, CH1 microphones input interface and CH1 guitar input interfaces are connected, and the CH1 balanced signals input is single
Member includes CH1 signal switch, and the CH1 signal switch is used for the circuit/words for switching CH1 balanced signal input blocks
Cylinder/guitar inputs.
The CH2 balanced signals input block respectively with the CH2 circuits input interface and CH2 microphones on control panel
Input interface is connected, and the CH2 balanced signals input block includes CH2 signal switch, the CH2 signal switch
For switching circuit/microphone input of CH2 balanced signal input blocks.
As a further improvement on the present invention：The loudspeaker include bass horn and loudspeaker；On the control panel
Provided with human-machine operation unit and LED display unit；The human-machine operation unit includes control button and control handle, the LED
Display unit includes LED and LED display.
The upper end of the head unit is provided with pull bar；The bottom of the speaker body is provided with pulley, and the pulley is unidirectional
Wheel, universal wheel or stair climbing wheel.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of Multifunctional mobile pull bar audio amplifier, believed with DSP numerals
Number processor is core, there is the input of musical instrument guitar, Karaoke, bluetooth/USB flash disk/TF card to play, smart mobile phone and tablet personal computer
The multiple functions such as APP manipulations；Its musical instrument guitar input function has most effects in professional industry, can carry out guitar bullet
Sing performance；There is its Kara OK function DSP specialties to disappear voice this characteristic, can provide bigger enjoyment to sing；And user can
Functional, the easy to use, function of this Multifunctional mobile pull bar audio amplifier is operated on mobile phone or tablet personal computer by intelligent APP
Novel and diversified, Mobile loudspeaker box more existing than market is more recreational, fully meets that user sets to multi-functional, high-performance mobile audio amplifier
Standby demand.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the electrical block diagram of the power module of the present invention.
Fig. 3 is the electrical block diagram of the signal input module of the present invention.
Fig. 4 is the electrical block diagram of the signal DSP processing modules of the present invention.
Fig. 5 is the electrical block diagram of the wireless amusing module of the present invention.
Embodiment
In conjunction with brief description of the drawings, the present invention is further described with embodiment：
Case study on implementation one：With reference to figure 1, a kind of Multifunctional mobile pull bar audio amplifier, including speaker body, the outside of the speaker body
Provided with loudspeaker and control panel, the inside of the speaker body is provided with audio amplifier control system；The audio amplifier control system includes electricity
Source module, signal input module, signal DSP processing modules, MCU controllers, wireless amusing module and power amplifier；
The power module is used to power to speaker body；
With reference to figure 3, the signal DSP processing modules include ADC analog-digital converters, the DSP being sequentially connected
And DAC digital analog converters, wherein, DSP is English Digital Signal Processing abbreviation, is that one kind is particularly suitable for
In the microprocessor for carrying out Digital Signal Processing computing, mainly application is to realize that various Digital Signal Processing are calculated real-time for it
Method.The DSP be used for audio signal is handled, realize guitar effect, Karaoke effect, disappear
The functions such as voice function, EQ well-balanced adjustments, volume adjusting；The effect of the guitar includes the overwhelming majority effect in professional industry
Fruit, such as former qin, classical distortion, heavy metal distortion, overload, flange, chorus, delay etc., guitar bullet can be carried out and sing performance；It blocks
Drawing OK effect function, there is DSP specialties to disappear voice function, can provide bigger enjoyment for performance；The signal DSP handles mould
Block connects signal input module, MCU controllers and power amplifier respectively；
The MCU controllers connect control panel, for carrying out all feature operations and Intelligent treatment to the speaker body；
MCU controllers, i.e. micro-control unit (Microcontroller Unit), also known as one chip microcomputer or single-chip microcomputer, it is
The computer of chip-scale, can be that various combination control is done in different application scenarios.
The DAC digital analog converters connect power amplifier, and the power amplifier connects loudspeaker, for signal DSP
The treated signal of processing module carries out power amplification, then drives loudspeaker to play out；The ADC analog-digital converters connection letter
Number input module；With reference to figure 2, the signal input module include CH1 balanced signals input block, the stereo input blocks of CH3,
CH2 balanced signals input block and wireless microphone receiving unit；The CH2 balanced signals input block connection wireless microphone receives
Unit, the stereo input block connection wireless amusing modules of CH3；
With reference to figure 4, the wireless amusing module includes bluetooth unit, USB flash disk unit and TF card unit, for realizing that Bluetooth audio frequency connects
Receipts, USB flash disk and TF card are read, and a variety of audio formats such as MP3, WMA, WAV can be supported to play；The wireless amusing module passes through
RX/TX serial communications are connected with MCU controllers.
The control panel is provided with external power supply adaptor interface；The power module includes external power supply interface electricity
Road, battery charging circuit, battery, electronic switch and DC/DC reduction voltage circuits, the external power supply interface circuit pass through electric power storage
Pond charging circuit is connected with battery, and connects external power supply adapter by external power supply adaptor interface；The external electricity
Source adapter is used for for speaker body work power supply and battery is charged, and it is audio amplifier sheet that the battery, which is used for during outdoor use,
Body running is powered；The electronic switch connects external power supply interface circuit, battery, DC/DC reduction voltage circuits and power and put respectively
Big device, the DC/DC reduction voltage circuits connect signal DSP processing modules and MCU controllers respectively；The electronic switch is controlled by MCU
Device controlling switch processed, power module divides duplex feeding when the electronic switch is opened, and directly supplies electricity to power amplifier all the way, another
Road supplies electricity to signal DSP processing modules and MCU controllers through DC/DC reduction voltage circuits.
Electronic switch refers to the running unit that connecting and disconnecting of the circuit is realized using electronic circuit and power electronic devices, at least wraps
Include a controllable electric drive device, such as IGCT, transistor, FET, controllable silicon, relay.
The stereo input blocks of CH3 input with the CH3 circuits input interface on control panel, bluetooth respectively
End, USB flash disk interface and TF card groove are connected, and the signal that the stereo input blocks of CH3 are used for circuit, bluetooth, USB flash disk and TF card is defeated
Enter；For the bluetooth input with mobile terminal by bluetooth wireless connection, the mobile terminal is provided with audio amplifier control APP；Institute
State bluetooth input and be used for audio transmission and control data transmission, coordinate the audio amplifier on the mobile terminal to control APP, realize intelligence
Can control.The Bluetooth function of the present invention supports recording in addition to supporting audio transmission, control data transmission is also supported, with hand
The audio amplifier control APP installed on machine, tablet personal computer is supported the use, and is effectively realized intelligent control, is greatly improved the use of the machine
Experience.
The CH1 balanced signals input block respectively with CH1 circuits input interface, the CH1 microphones on control panel
Input interface and CH1 guitar input interfaces are connected, and the CH1 balanced signals input block includes CH1 signal switch, institute
State circuit/microphone/guitar input that CH1 signal switch is used to switch CH1 balanced signal input blocks.The CH2 balances
Signal input unit is connected with the CH2 circuits input interface on control panel, CH2 microphone input interfaces respectively, described
CH2 balanced signals input block includes CH2 signal switch, and the CH2 signal switch is used to switch CH2 balanced signals
The circuit of input block/microphone input.
The loudspeaker include bass horn and loudspeaker；The control panel is provided with human-machine operation unit and LED shows
Show unit；The human-machine operation unit includes control button and control handle, and the LED display unit includes LED and LED shows
Display screen.The upper end of the head unit is provided with pull bar；The bottom of the speaker body is provided with pulley, the pulley be one-way wheel,
Universal wheel or stair climbing wheel, pull bar audio amplifier easy to remove are easy to use.
The major function of the present invention：A kind of Multifunctional mobile pull bar audio amplifier, using DSP as core, tool
There are the multiple functions such as the input of musical instrument guitar, Karaoke, bluetooth/USB flash disk/TF card broadcasting, smart mobile phone and tablet personal computer APP manipulations；
Its musical instrument guitar input function has most effects in professional industry, for example, former qin, classical distortion, heavy metal distortion,
Overload, flange, chorus, delay etc., guitar bullet can be carried out and sing performance；There is its Kara OK function DSP specialties to disappear, and this is special for voice
Color, bigger enjoyment can be provided to sing；And user can operate this multi-functional shifting by intelligent APP on mobile phone or tablet personal computer
The institute of dynamic pull bar audio amplifier is functional, easy to use, novel functions are various, and Mobile loudspeaker box more existing than market is more recreational, fills
Point meets the needs of user is to multi-functional, high-performance mobile sound-box device.
In summary, after one of ordinary skill in the art reads file of the present invention, technique according to the invention scheme and
Technical concept makes other various corresponding conversion schemes without creative mental labour, belongs to the model that the present invention is protected
Enclose.
Claims (7)
1. a kind of Multifunctional mobile pull bar audio amplifier, including speaker body, it is characterised in that：The outside of the speaker body is provided with loudspeaker
And control panel, the inside of the speaker body be provided with audio amplifier control system；The audio amplifier control system include power module,
Signal input module, signal DSP processing modules, MCU controllers, wireless amusing module and power amplifier；
The power module is used to power to speaker body；
The signal DSP processing modules include ADC analog-digital converters, DSP and the DAC digital-to-analogues being sequentially connected
Converter, the DSP are used to handle audio signal, realize the function of speaker body；The letter
Number DSP processing modules connect signal input module, MCU controllers and power amplifier respectively；
The MCU controllers connect control panel, for carrying out all feature operations and Intelligent treatment to the speaker body；
The DAC digital analog converters connect power amplifier, and the power amplifier connects loudspeaker, for signal DSP processing
The signal that resume module is crossed carries out power amplification, then drives loudspeaker to play out；The ADC analog-digital converters connection signal is defeated
Enter module, the signal input module includes CH1 balanced signals input block, the stereo input blocks of CH3, CH2 balanced signals
Input block and wireless microphone receiving unit；The CH2 balanced signals input block connects wireless microphone receiving unit, described
The stereo input block connection wireless amusing modules of CH3；
The wireless amusing module includes bluetooth unit, USB flash disk unit and TF card unit, for realize Bluetooth audio frequency receive, USB flash disk and
TF card is read；The wireless amusing module is connected by RX/TX serial communications with MCU controllers.
A kind of 2. Multifunctional mobile pull bar audio amplifier according to claim 1, it is characterised in that：The control panel is provided with
External power supply adaptor interface；The power module includes external power supply interface circuit, battery charging circuit, battery, electricity
Sub switch and DC/DC reduction voltage circuits, the external power supply interface circuit are connected by battery charging circuit with battery, and logical
Cross external power supply adaptor interface connection external power supply adapter；The external power supply adapter is used to supply for speaker body work
Electricity and battery is charged, powered when the battery is used for outdoor use for speaker body work；The electronic switch difference
Connection external power supply interface circuit, battery, DC/DC reduction voltage circuits and power amplifier, the DC/DC reduction voltage circuits connect respectively
Connect signal DSP processing modules and MCU controllers；The electronic switch is by MCU controller controlling switches, when the electronic switch is opened
Power module divides duplex feeding, directly supplies electricity to power amplifier all the way, and another way supplies electricity to signal through DC/DC reduction voltage circuits
DSP processing modules and MCU controllers.
A kind of 3. Multifunctional mobile pull bar audio amplifier according to claim 1, it is characterised in that：The CH3 solids vocal input
Unit is connected with CH3 circuits input interface, bluetooth input, USB flash disk interface and the TF card groove on control panel respectively, institute
State the signal input that the stereo input blocks of CH3 are used for circuit, bluetooth, USB flash disk and TF card；The bluetooth input and mobile terminal
By bluetooth wireless connection, the mobile terminal is provided with audio amplifier control APP；The bluetooth input is used for audio transmission and control
Data transfer processed, coordinate the audio amplifier on the mobile terminal to control APP, realize intelligent control.
A kind of 4. Multifunctional mobile pull bar audio amplifier according to claim 1, it is characterised in that：The CH1 balanced signals are defeated
Enter unit respectively with the CH1 circuits input interface on control panel, CH1 microphones input interface and CH1 guitar input interfaces
It is connected, the CH1 balanced signals input block includes CH1 signal switch, and the CH1 signal switch is used to switch
Circuit/microphone of CH1 balanced signal input blocks/guitar input.
A kind of 5. Multifunctional mobile pull bar audio amplifier according to claim 1, it is characterised in that：The CH2 balanced signals are defeated
It is defeated with the CH2 circuits input interface on control panel, CH2 microphone input interfaces, the CH2 balanced signals respectively to enter unit
Entering unit includes CH2 signal switch, and the CH2 signal switch is used for the line for switching CH2 balanced signal input blocks
Road/microphone input.
A kind of 6. Multifunctional mobile pull bar audio amplifier according to claim 1, it is characterised in that：The loudspeaker include bass loudspeaker
And loudspeaker；The control panel is provided with human-machine operation unit and LED display unit；The human-machine operation unit includes
Control button and control handle, the LED display unit include LED and LED display.
A kind of 7. Multifunctional mobile pull bar audio amplifier according to claim 1, it is characterised in that：The upper end of the head unit
Provided with pull bar；The bottom of the speaker body is provided with pulley, and the pulley is one-way wheel, universal wheel or stair climbing wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710898539.7A CN107566945A (en) | 2017-09-28 | 2017-09-28 | A kind of Multifunctional mobile pull bar audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710898539.7A CN107566945A (en) | 2017-09-28 | 2017-09-28 | A kind of Multifunctional mobile pull bar audio amplifier |
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| Publication Number | Publication Date |
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| CN107566945A true CN107566945A (en) | 2018-01-09 |
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| CN201710898539.7A Pending CN107566945A (en) | 2017-09-28 | 2017-09-28 | A kind of Multifunctional mobile pull bar audio amplifier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108271101A (en) * | 2018-03-13 | 2018-07-10 | 广州国光音频科技有限公司 | A kind of method for obtaining pull rod speaker song information and playing |
| CN108281142A (en) * | 2018-02-05 | 2018-07-13 | 北京唱吧科技股份有限公司 | A kind of requesting songs method and system |
| CN108668201A (en) * | 2018-08-16 | 2018-10-16 | 广东辉杰智能科技股份有限公司 | A kind of mobile pull rod speaker with network direct broadcasting pattern |
| CN109343400A (en) * | 2018-10-22 | 2019-02-15 | 广东浪庭电器科技有限公司 | A kind of circuit control panel of open air intelligent sound |
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| CN207427421U (en) * | 2017-09-28 | 2018-05-29 | 广州国光音频科技有限公司 | A kind of Multifunctional mobile pull rod speaker |
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| US20060159291A1 (en) * | 2005-01-14 | 2006-07-20 | Fliegler Richard H | Portable multi-functional audio sound system and method therefor |
| CN203206447U (en) * | 2013-04-26 | 2013-09-18 | 宁波柏人艾电子有限公司 | Multimedia sound box |
| CN106941643A (en) * | 2017-05-03 | 2017-07-11 | 广州市花都区国光音频科技中心（普通合伙） | The multi-functional intelligent sound control method of one kind set |
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| CN108281142A (en) * | 2018-02-05 | 2018-07-13 | 北京唱吧科技股份有限公司 | A kind of requesting songs method and system |
| CN108271101A (en) * | 2018-03-13 | 2018-07-10 | 广州国光音频科技有限公司 | A kind of method for obtaining pull rod speaker song information and playing |
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