CN208386895U - A kind of sound system of wireless transmission - Google Patents
A kind of sound system of wireless transmission Download PDFInfo
- Publication number
- CN208386895U CN208386895U CN201820957150.5U CN201820957150U CN208386895U CN 208386895 U CN208386895 U CN 208386895U CN 201820957150 U CN201820957150 U CN 201820957150U CN 208386895 U CN208386895 U CN 208386895U
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- processor
- dsp
- wireless
- audio
- signal
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of sound systems of wireless transmission, including wireless audio pusher and wireless receiving active audio amplifier；Audio playback stereo phonic signal receiver in wireless audio pusher is sequentially connected signal shifter, the first analog-digital converter and DSP from processor；Real-time microphone signal receiver is sequentially connected signal mixer, the second analog-digital converter, DSP from processor；DSP connects audio output interface by digital analog converter from processor；MCU Interface Control single-chip microcontroller connects ARM primary processor, and three tunnels of ARM primary processor point connect DSP from processor, signal shifter and signal mixer, and DSP connects 2.4G wireless transmitter from processor；The standby power of wireless receiving active audio amplifier connects 2.4G wireless receiver, three tunnels of 2.4G wireless receiver point are separately connected antenna switcher, DSP audio processor and resonant switching power, DSP audio processor and resonant switching power are connected to D class switch power amplifier, and D class switch power amplifier connects loudspeaker.
Description
Technical field
The utility model relates to stereo set more particularly to a kind of sound systems of wireless transmission.
Background technique
Sound system, which refers to, is converted to electric signal the acoustic signals of primary sound field sound with microphone, and wants by certain
The processing by electric signal by some electronic equipments is asked, electric signal is finally reconverted into acoustic signals with loudspeaker and is reset, this
The one entire composition from microphone to loudspeaker is exactly sound system.The line of previous sound system is complicated, strongly professional, system
Extension is difficult, and most user uses difficult.
Utility model content
The utility model is to provide a kind of sound system of wireless transmission to solve above-mentioned deficiency.
The above-mentioned purpose of the utility model is realized by technical solution below: a kind of sound system of wireless transmission,
Including transmitting terminal and receiving end, the transmitting terminal is wireless audio pusher, and receiving end is wireless receiving active audio amplifier；
The wireless audio pusher includes audio playback stereo phonic signal receiver, signal shifter, the first modulus turn
Parallel operation；Real-time microphone signal receiver, signal mixer, the second analog-digital converter；DSP is from processor, digital analog converter, audio
Output interface, 2.4G wireless transmitter, ARM primary processor and MCU Interface Control single-chip microcontroller；
The audio playback stereo phonic signal receiver connection signal switch, signal shifter pass through the first analog-to-digital conversion
Device connects DSP from processor；
The real-time microphone signal receiver connection signal mixer, signal mixer are connected by the second analog-digital converter
DSP is from processor；The DSP connects audio output interface by digital analog converter from processor；
The MCU Interface Control single-chip microcontroller connects ARM primary processor, and three tunnels of ARM primary processor point connect DSP from processing
Device, signal shifter and signal mixer, DSP connect 2.4G wireless transmitter from processor；
The wireless receiving active audio amplifier includes standby power, antenna switcher, antenna, 2.4G wireless receiver, DSP sound
Frequency processor, D class switch power amplifier, loudspeaker, resonant switching power；
The standby power connects 2.4G wireless receiver, and three tunnels of 2.4G wireless receiver point are separately connected antenna switching
Device, DSP audio processor and resonant switching power, antenna switcher connect antenna, DSP audio processor and resonant switching power
It is connected to D class switch power amplifier, D class switch power amplifier connects loudspeaker.
Further, the wireless receiving active audio amplifier is at least one, and can infinite expanding.
Further, the audio playback stereo phonic signal receiver is two groups, is connected to signal shifter.
Further, the real-time microphone signal receiver is three, is connected to signal mixer.
Further, the digital analog converter is three, is connected with DSP from processor, and be separately connected there are three sound
Frequency output interface.
Further, it is communicated between the transmitting terminal and receiving end using coding encrypting form.
The utility model compared with prior art the advantages of be: a whole set of wireless system of the utility model is inserted using simple
Electricity is used, and is not needed professional and is debugged use.Terminal automatic switching is received, it is compact and flexible, it is moved easily use, is easily expanded
Exhibition system, the occasion of any required public address uses, anyone can operate with, without worrying that misoperation causes to damage
It loses.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model.
The structural schematic diagram of wireless audio pusher in Fig. 2 the utility model.
The structural schematic diagram of wireless receiving active audio amplifier in Fig. 3 the utility model.
Specific embodiment
The utility model is described in further detail below with reference to embodiment.
As shown in Figure 1, a kind of sound system of wireless transmission, including transmitting terminal and receiving end, the transmitting terminal are wireless
Audio pusher, receiving end are wireless receiving active audio amplifier；
As shown in Fig. 2, the wireless audio pusher include audio playback stereo phonic signal receiver, signal shifter,
First analog-digital converter；Real-time microphone signal receiver, signal mixer, the second analog-digital converter；DSP is from processor, digital-to-analogue
Converter, audio output interface, 2.4G wireless transmitter, ARM primary processor and MCU Interface Control single-chip microcontroller；
The audio playback stereo phonic signal receiver connection signal switch, signal shifter pass through the first analog-to-digital conversion
Device connects DSP from processor；
The real-time microphone signal receiver connection signal mixer, signal mixer are connected by the second analog-digital converter
DSP is from processor；The DSP connects audio output interface by digital analog converter from processor；
The MCU Interface Control single-chip microcontroller connects ARM primary processor, and three tunnels of ARM primary processor point connect DSP from processing
Device, signal shifter and signal mixer, DSP connect 2.4G wireless transmitter from processor；
As shown in figure 3, the wireless receiving active audio amplifier includes that standby power, antenna switcher, antenna, 2.4G wirelessly connect
Receive device, DSP audio processor, D class switch power amplifier, loudspeaker, resonant switching power；
The standby power connects 2.4G wireless receiver, and three tunnels of 2.4G wireless receiver point are separately connected antenna switching
Device, DSP audio processor and resonant switching power, antenna switcher connect antenna, DSP audio processor and resonant switching power
It is connected to D class switch power amplifier, D class switch power amplifier connects loudspeaker.
Further, the wireless receiving active audio amplifier is at least one, and can infinite expanding.
Further, the audio playback stereo phonic signal receiver is two groups, is connected to signal shifter.
Further, the real-time microphone signal receiver is three, is connected to signal mixer.
Further, the digital analog converter is three, is connected with DSP from processor, and be separately connected there are three sound
Frequency output interface.
Further, it is communicated between the transmitting terminal and receiving end using coding encrypting form.
The wireless sound box automatic switching of the utility model, stereo lossless Digital Audio Transmission.Automatic frequency adjustment is avoided doing
It disturbs.Realize that transmitting terminal is communicated with receiving end using coding encrypting form.Power supply uses active power-factor correction circuit
Reduce the loss (being commonly called as energy conservation) of exchange power.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model specification and embodiment content, directly or indirectly use
In other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (6)
1. a kind of sound system of wireless transmission, including transmitting terminal and receiving end, it is characterised in that: the transmitting terminal is wireless sound
Frequency pusher, receiving end are wireless receiving active audio amplifier；
The wireless audio pusher includes audio playback stereo phonic signal receiver, signal shifter, the first analog-digital converter；
Real-time microphone signal receiver, signal mixer, the second analog-digital converter；DSP is from processor, digital analog converter, audio output
Interface, 2.4G wireless transmitter, ARM primary processor and MCU Interface Control single-chip microcontroller；
The audio playback stereo phonic signal receiver connection signal switch, signal shifter are connected by the first analog-digital converter
DSP is met from processor；
The real-time microphone signal receiver connection signal mixer, signal mixer connect DSP by the second analog-digital converter
From processor；The DSP connects audio output interface by digital analog converter from processor；
The MCU Interface Control single-chip microcontroller connects ARM primary processor, and three tunnels of ARM primary processor point connect DSP from processor, letter
Number switch and signal mixer, DSP connect 2.4G wireless transmitter from processor；
The wireless receiving active audio amplifier include standby power, antenna switcher, antenna, 2.4G wireless receiver, at DSP audio
Manage device, D class switch power amplifier, loudspeaker, resonant switching power；
The standby power connects 2.4G wireless receiver, and three tunnels of 2.4G wireless receiver point are separately connected antenna switcher, DSP
Audio processor and resonant switching power, antenna switcher connect antenna, and DSP audio processor and resonant switching power are all connected with
To D class switch power amplifier, D class switch power amplifier connects loudspeaker.
2. a kind of sound system of wireless transmission according to claim 1, it is characterised in that: the active sound of wireless receiving
Case is at least one, and can infinite expanding.
3. a kind of sound system of wireless transmission according to claim 1, it is characterised in that: the audio playback is stereo
Signal receiver is two groups, is connected to signal shifter.
4. a kind of sound system of wireless transmission according to claim 1, it is characterised in that: the real-time microphone signal connects
Receiving device is three, is connected to signal mixer.
5. a kind of sound system of wireless transmission according to claim 1, it is characterised in that: the digital analog converter is three
It is a, it is connected with DSP from processor, and be separately connected there are three audio output interface.
6. a kind of sound system of wireless transmission according to claim 1, it is characterised in that: the transmitting terminal and receiving end
Between communicated using coding encrypting form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820957150.5U CN208386895U (en) | 2018-06-21 | 2018-06-21 | A kind of sound system of wireless transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820957150.5U CN208386895U (en) | 2018-06-21 | 2018-06-21 | A kind of sound system of wireless transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208386895U true CN208386895U (en) | 2019-01-15 |
Family
ID=64967787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820957150.5U Expired - Fee Related CN208386895U (en) | 2018-06-21 | 2018-06-21 | A kind of sound system of wireless transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208386895U (en) |
-
2018
- 2018-06-21 CN CN201820957150.5U patent/CN208386895U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20210621 |