CN208353556U - It is a kind of wirelessly to frequency audio device - Google Patents
It is a kind of wirelessly to frequency audio device Download PDFInfo
- Publication number
- CN208353556U CN208353556U CN201820690654.5U CN201820690654U CN208353556U CN 208353556 U CN208353556 U CN 208353556U CN 201820690654 U CN201820690654 U CN 201820690654U CN 208353556 U CN208353556 U CN 208353556U
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- frequency
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- audio
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Abstract
The utility model discloses a kind of wirelessly to frequency audio device, including pickup component and audio frequency power amplifier component, pickup component includes sound pick-up, wireless transmitter module, single-chip microcontroller, frequency-selecting unit, frequency-selecting unit is electrically connected with single-chip microcontroller, wireless transmitter module respectively, and single-chip microcontroller adjusts the tranmitting frequency of wireless transmitter module by frequency-selecting unit and can emit adjusted frequency information by wireless transmitter module；Audio frequency power amplifier component include wireless receiving module corresponding with wireless transmitter module, audio demodulation unit, microprocessor, audio amplification output end, to frequency unit, frequency unit is electrically connected with wireless receiving module, audio demodulation unit respectively, microprocessor is electrically connected with to frequency unit to adjust the reception frequency of wireless receiving module to frequency unit according to the received frequency information control of wireless receiving module, match so that receiving frequency with tranmitting frequency, the design can set tranmitting frequency certainly and receive frequency, frequency can be handled when replacing component, it is easy to use.
Description
Technical field
The utility model relates to audio collection power amplifier field, especially a kind of wireless acoustic apparatus.
Background technique
Traditional wireless acoustic apparatus sends wireless audio for acquiring the microphone of audio signal and receiving microphone
Signal and the sound equipment for carrying out power amplifier are the transmittings of default fixation when leaving the factory, receive frequency, so that the wheat of same specification
Gram wind can only be matched with the sound equipment of the specification, to realize the transmission of wireless signal, and work as the emission element or sound of microphone
Loud receiving part breaks down, and user can only select the microphone of identical specification or sound equipment to replace, otherwise with regard to nothing
The matching of method realization frequency.
Utility model content
It can be wirelessly to the audio device of frequency in order to solve the above technical problems, the purpose of the utility model is to provide one kind.
The technical solution adopted in the utility model is:
It is a kind of wirelessly to frequency audio device, including pickup component and audio frequency power amplifier component, the pickup component includes picking up
Sound device, wireless transmitter module, single-chip microcontroller, frequency-selecting unit, wireless transmitter module are electrically connected with sound pick-up and are adopted with emitting sound pick-up
The audio signal of collection, frequency-selecting unit are electrically connected with single-chip microcontroller, wireless transmitter module respectively, and single-chip microcontroller is adjusted by frequency-selecting unit
The tranmitting frequency of wireless transmitter module and frequency information that can be adjusted by wireless transmitter module transmitting；
The audio frequency power amplifier component includes wireless receiving module corresponding with wireless transmitter module, audio demodulation unit, micro-
Processor, audio amplify output end, to frequency unit, electrically connect with wireless receiving module, audio demodulation unit respectively to frequency unit
It connects, microprocessor is electrically connected with to frequency unit to be adjusted according to the received frequency information control of wireless receiving module to frequency unit
The reception frequency of wireless receiving module matches so that receiving frequency with tranmitting frequency, and audio demodulation unit is amplified defeated with audio
Outlet is electrically connected to demodulate and export to the received audio signal of wireless receiving module.
Audio frequency power amplifier component further includes muting unit, and muting unit and microprocessor are electrically connected to audio signal noise reduction
Processing.
The pickup component further includes for providing user's frequency input module for inputting frequency information, which inputs mould
Block and single-chip microcontroller are electrically connected.
The pickup component includes power module and energy supply control module, and power module is single-chip microcontroller power supply, power supply control
Molding block is electrically connected with single-chip microcontroller, power module, wireless transmitter module respectively, and single-chip microcontroller controls energy supply control module to power supply
Electric current, the voltage of module output carry out transformation and think that wireless module is powered.
The audio frequency power amplifier component includes power supply module, power supply module respectively with alternating current input, wireless receiving module, audio
Demodulating unit, microprocessor, audio amplification output end, which are electrically connected convert to electric current, the voltage of city's electricity output, to be thought wirelessly
Receiving module, audio demodulation unit, microprocessor, audio amplification output end power supply.
The frequency-selecting unit includes at least two by monolithic processor controlled bandpass filtering component, at least two bandpass filtering
Component is parallel with one another between sound pick-up, wireless transmitter module.
The wireless transmitter module is infrared transmitter or bluetooth transmitters, and the wireless receiving module is and wireless hair
Penetrate the corresponding infrared remote receiver of module or Bluetooth Receiver.
The pickup component further includes delay unit, single-chip microcontroller and delay unit be electrically connected with can delay emission adjusted
Frequency information.
The utility model has the beneficial effects that
The utility model audio device, in pickup component, single-chip microcontroller can change wireless transmission mould by frequency-selecting unit
The tranmitting frequency of block, and adjusted frequency information is emitted into audio frequency power amplifier component by wireless transmitter module, microprocessor
The reception frequency of wireless receiving module is adjusted to frequency unit according to the received frequency information control of wireless receiving module, so that receiving
Frequency matches with tranmitting frequency, and the design can set tranmitting frequency certainly and receive frequency, when pickup component and audio frequency power amplifier portion
When any failure of part, the component of failure is replaced and by handling frequency, that is, can be used, it is easy to use.
Detailed description of the invention
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.
Fig. 1 is the utility model wirelessly to the schematic diagram of frequency audio device.
Fig. 2 is the circuit diagram of audio demodulation unit.
Fig. 3 is the control principle drawing of pickup component.
Fig. 4 is the control principle drawing of audio frequency power amplifier component.
Specific embodiment
As shown in Figure 1 and Figure 2, the utility model is wirelessly to frequency audio device, including pickup component 1 and audio frequency power amplifier portion
Part 2, the pickup component 1 include sound pick-up 11, wireless transmitter module 12, single-chip microcontroller 13, frequency-selecting unit 14, wireless transmitter module
12 with sound pick-up 11 be electrically connected with emit sound pick-up 11 acquisition audio signal, frequency-selecting unit 14 respectively with single-chip microcontroller 13, nothing
Line transmitting module 12 is electrically connected, and single-chip microcontroller 13 adjusts the tranmitting frequency and energy of wireless transmitter module 12 by frequency-selecting unit 14
Enough emit adjusted frequency information by wireless transmitter module 12；
The audio frequency power amplifier component 2 includes wireless receiving module 21 corresponding with wireless transmitter module 12, audio demodulation list
Member 22, microprocessor 23, audio amplification output end 24, to frequency unit 25, to frequency unit 25 respectively with wireless receiving module 21, sound
Frequency demodulating unit 22 is electrically connected, and microprocessor 23 is electrically connected with to frequency unit 25 with received according to wireless receiving module 21
Frequency information control adjusts the reception frequency of wireless receiving module 21 to frequency unit 25, so that receiving frequency and tranmitting frequency phase
Match, audio demodulation unit 22 and audio amplification output end 24 are electrically connected to the received audio signal solution of wireless receiving module 21
Adjust output, wherein sound pick-up 11, wireless transmitter module 12, single-chip microcontroller 13, wireless receiving module 21, microprocessor 23, audio are put
Big output end 24 is that can carry out selection replacement in conventional component, and the preferred audio demodulation unit 22 of the design can refer to figure
Shown in 2, wireless transmitter module 12 is infrared transmitter or bluetooth transmitters, and the wireless receiving module 21 is and wireless transmission
The corresponding infrared remote receiver of module 12 or Bluetooth Receiver.
Meanwhile frequency-selecting unit 14 can be setting of the program of single-chip microcontroller 13 to wireless transmitter module 12, it can also be by hard
Part is constituted, and the design frequency-selecting unit 14 may include at least two bandpass filtering components controlled by single-chip microcontroller 13, this is at least
Two bandpass filtering components are parallel with one another between sound pick-up 11, wireless transmitter module 12, and bandpass filtering component can be by electricity
Hold, the multistage bandpass filter of inductance composition, likewise, can be the program of microprocessor 23 to wireless receiving to frequency unit 25
The setting of module 21 can also be provided corresponding signal to wireless receiving module 21 by hardware circuit, it is made to receive respective frequencies
Signal.
Pickup component 1 further includes for providing user's frequency input module 15 for inputting frequency information, which inputs mould
Block 15 and single-chip microcontroller 13 are electrically connected, and frequency input module 15 can be key and be also possible to touch screen, input frequency letter herein
Breath is set by single-chip microcontroller 13 again.
Pickup component 1 further includes delay unit 16, and single-chip microcontroller 13 and delay unit 16 are electrically connected with being capable of delay emission
The frequency information adjusted.
Audio frequency power amplifier component 2 further includes muting unit 26, and muting unit 26 and microprocessor 23 are electrically connected to audio
Signal de-noising processing, muting unit 26 herein can be that several capacitors are parallel with one another to be formed.
Pickup component 1 includes power module 17 and energy supply control module 18, and power module 17 is the power supply of single-chip microcontroller 13, electricity
Source control module 18 is electrically connected with single-chip microcontroller 13, power module 17, wireless transmitter module 12 respectively, and single-chip microcontroller 13 controls power supply
Electric current that control module 18 exports power module 17, voltage carry out transformation and think that wireless transmitter module 12 is powered, electricity herein
Source module 17 can be storage battery, and energy supply control module 18 can be the adjustable voltage of the control of single-chip microcontroller 13, current circuit plate.
Audio frequency power amplifier component 2 include power supply module 27, power supply module 27 respectively with alternating current input, wireless receiving module 21,
Audio demodulation unit 22, microprocessor 23, the audio amplification electric connection of output end 24 become electric current, the voltage of city's electricity output
It changes to amplify output end 24 for wireless receiving module 21, audio demodulation unit 22, microprocessor 23, audio and power, power supply module
27 can be can be to the power supply adaptor that alternating current is converted.
The control principle of the design is, as shown in Figure 3, Figure 4, pickup component and audio frequency power amplifier component it is default there are two
Frequency point, respectively A and B, wherein B is the frequency point that do not make an amendment, and single-chip microcontroller can control wireless transmitter module by frequency-selecting unit
Switching between frequency point A and frequency point B, pickup component sends audio frequency power amplifier component by frequency point A or frequency point B for audio signal,
Audio frequency power amplifier component receives frequency point A or the effective instruction of any frequency point of frequency point B and can be acted later according to command information, and more
Either component has been changed, when needing to change frequency point again, such as has needed for frequency point to be changed to X, single-chip microcontroller is first by the frequency of X at frequency point A
Rate information is sent to audio frequency power amplifier component, is delayed by delay unit, then is again sent to the frequency information of X at frequency point B
In audio frequency power amplifier component, microprocessor receives X frequency information twice, and frequency point A is switched to frequency point X, while single-chip microcontroller
Frequency point A is switched to frequency point X.
The foregoing is merely the preferred embodiments of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, if with essentially identical means realize the utility model aim technical solution belong to the protection scope of the utility model it
It is interior.
Claims (8)
1. a kind of wirelessly to frequency audio device, including pickup component and audio frequency power amplifier component, it is characterised in that: the pickup portion
Part includes sound pick-up, wireless transmitter module, single-chip microcontroller, frequency-selecting unit, and wireless transmitter module is electrically connected with sound pick-up to emit
The audio signal of sound pick-up acquisition, frequency-selecting unit are electrically connected with single-chip microcontroller, wireless transmitter module respectively, and single-chip microcontroller passes through frequency-selecting
Unit adjusts the tranmitting frequency of wireless transmitter module and can emit adjusted frequency information by wireless transmitter module；
The audio frequency power amplifier component includes wireless receiving module corresponding with wireless transmitter module, audio demodulation unit, micro process
Device, audio amplify output end, to frequency unit, are electrically connected respectively with wireless receiving module, audio demodulation unit to frequency unit, micro-
Processor is electrically connected with to frequency unit to be adjusted wirelessly according to the received frequency information control of wireless receiving module to frequency unit
The reception frequency of receiving module matches so that receiving frequency with tranmitting frequency, and audio demodulation unit and audio amplify output end
It is electrically connected to demodulate and export to the received audio signal of wireless receiving module.
2. according to claim 1 a kind of wirelessly to frequency audio device, it is characterised in that: the audio frequency power amplifier component also wraps
Muting unit is included, muting unit and microprocessor are electrically connected to audio signal noise reduction process.
3. according to claim 1 a kind of wirelessly to frequency audio device, it is characterised in that: the pickup component further includes using
In providing user's frequency input module for inputting frequency information, the frequency input module and single-chip microcontroller are electrically connected.
4. according to claim 1 a kind of wirelessly to frequency audio device, it is characterised in that: the pickup component includes power supply
Module and energy supply control module, power module be single-chip microcontroller power supply, energy supply control module respectively with single-chip microcontroller, power module,
Wireless transmitter module is electrically connected, and electric current, the voltage that single-chip microcontroller control energy supply control module exports power module convert
Think that wireless module is powered.
5. according to claim 1 a kind of wirelessly to frequency audio device, it is characterised in that: the audio frequency power amplifier component includes
Power supply module, power supply module are defeated with alternating current input, wireless receiving module, audio demodulation unit, microprocessor, audio amplification respectively
Outlet, which is electrically connected convert to electric current, the voltage of city's electricity output, thinks wireless receiving module, audio demodulation unit, micro process
Device, audio amplification output end power supply.
6. according to claim 1 a kind of wirelessly to frequency audio device, it is characterised in that: the frequency-selecting unit includes at least
Two by monolithic processor controlled bandpass filtering component, at least two bandpass filterings component is parallel with one another in sound pick-up, wireless hair
It penetrates between module.
7. according to claim 1 a kind of wirelessly to frequency audio device, it is characterised in that: the wireless transmitter module is red
Perhaps the bluetooth transmitters wireless receiving module is infrared remote receiver corresponding with wireless transmitter module or indigo plant to external transmitter
Tooth receiver.
8. according to claim 1 a kind of wirelessly to frequency audio device, it is characterised in that: the pickup component further includes prolonging
Shi Danyuan, single-chip microcontroller and delay unit are electrically connected with being capable of the frequency information adjusted of delay emission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820690654.5U CN208353556U (en) | 2018-05-09 | 2018-05-09 | It is a kind of wirelessly to frequency audio device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820690654.5U CN208353556U (en) | 2018-05-09 | 2018-05-09 | It is a kind of wirelessly to frequency audio device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208353556U true CN208353556U (en) | 2019-01-08 |
Family
ID=64889028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820690654.5U Expired - Fee Related CN208353556U (en) | 2018-05-09 | 2018-05-09 | It is a kind of wirelessly to frequency audio device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208353556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510823A (en) * | 2020-04-16 | 2020-08-07 | 北京雷石天地电子技术有限公司 | Method, device, terminal and non-transitory computer readable storage medium for interconnection of microphone and loudspeaker boxes |
| CN114025269A (en) * | 2021-11-05 | 2022-02-08 | 昆腾微电子股份有限公司 | Wireless microphone and wireless receiver |
-
2018
- 2018-05-09 CN CN201820690654.5U patent/CN208353556U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510823A (en) * | 2020-04-16 | 2020-08-07 | 北京雷石天地电子技术有限公司 | Method, device, terminal and non-transitory computer readable storage medium for interconnection of microphone and loudspeaker boxes |
| CN111510823B (en) * | 2020-04-16 | 2021-06-04 | 北京雷石天地电子技术有限公司 | Method, device, terminal and non-transitory computer readable storage medium for interconnection of microphone and loudspeaker boxes |
| CN114025269A (en) * | 2021-11-05 | 2022-02-08 | 昆腾微电子股份有限公司 | Wireless microphone and wireless receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20210509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |