CN106937208A - A kind of Bluetooth speaker system - Google Patents
A kind of Bluetooth speaker system Download PDFInfo
- Publication number
- CN106937208A CN106937208A CN201511020250.2A CN201511020250A CN106937208A CN 106937208 A CN106937208 A CN 106937208A CN 201511020250 A CN201511020250 A CN 201511020250A CN 106937208 A CN106937208 A CN 106937208A
- Authority
- CN
- China
- Prior art keywords
- bluetooth
- audio device
- transmitting terminal
- speaker system
- bluetooth audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention relates to field of audio, more particularly to a kind of Bluetooth speaker system.The Bluetooth speaker system includes some Bluetooth audio devices, and each Bluetooth audio device includes main control chip, bluetooth module, operational amplifier, power amplifier, FM transmitter modules, FM receiver modules and loudspeaker.The present invention increases FM transmitter modules and FM receiver modules by improveing existing Bluetooth audio device, realizes that multiple Bluetooth audio devices synchronously play sound.
Description
【Technical field】
The present invention relates to field of audio, more particularly to a kind of Bluetooth speaker system.
【Background technology】
Current Bluetooth audio device all of on the market, is all Bluetooth signal one Bluetooth audio device of correspondence,
Can not multiple Bluetooth audio devices use simultaneously, even if being also required to connect cumbersome by holding wire.
【The content of the invention】
Can realize that multiple Bluetooth audio devices synchronously broadcast soniferous bluetooth it is an object of the invention to provide one kind
Sound system.
The object of the present invention is achieved like this：
A kind of Bluetooth speaker system, the Bluetooth speaker system includes some Bluetooth audio devices, each bluetooth
Sound equipment include main control chip, bluetooth module, operational amplifier, power amplifier, FM transmitter modules,
FM receiver modules and loudspeaker, some Bluetooth audio devices are included as the transmitting terminal bluetooth sound of transmitting terminal
Ring the receiving terminal Bluetooth audio device as receiving terminal with least one.
Preferably, the bluetooth module of the transmitting terminal Bluetooth audio device receives Bluetooth signal and exports the first sound
Frequency signal, first audio signal is passed to by the operational amplifier of the transmitting terminal Bluetooth audio device
The main control chip of the transmitting terminal Bluetooth audio device, at the main control chip decoding of the transmitting terminal Bluetooth audio device
Manage first audio signal and export audio-frequency information, the main control chip of the transmitting terminal Bluetooth audio device will
The audio-frequency information passes to the transmitting terminal bluetooth by the power amplifier of the transmitting terminal Bluetooth audio device
The loudspeaker of sound equipment.
Preferably, the audio-frequency information is also passed to institute by the main control chip of the transmitting terminal Bluetooth audio device
State the FM transmitter modules of transmitting terminal Bluetooth audio device, the FM transmitter modules of the transmitting terminal Bluetooth audio device
Modulate the audio-frequency information and generate FM FM signals and launch.
Preferably, the FM receiver modules of the receiving terminal Bluetooth audio device receive the transmitting terminal bluetooth sound
The FM FM signals that sound sends, the FM receiver modules of the receiving terminal Bluetooth audio device demodulate the FM
FM signal simultaneously generates the main control chip that the second audio signal passes to the receiving terminal Bluetooth audio device, institute
State the second audio signal described in the main control chip decoding process of receiving terminal Bluetooth audio device and export the audio
Information.
Preferably, the main control chip of the receiving terminal Bluetooth audio device connects the audio-frequency information by described
The power amplifier of receiving end Bluetooth audio device passes to the loudspeaker of the receiving terminal Bluetooth audio device.
Preferably, FM is disconnected when the bluetooth module of some Bluetooth audio devices receives Bluetooth signal automatically
Receiver module.
Preferably, the FM transmitter modules of some Bluetooth audio devices are provided with control FM transmitter modules
The switch of opening and closing.
Preferably, the FM receiver modules of some Bluetooth audio devices are provided with control FM receiver modules
The switch of opening and closing.
The present invention has advantages below：The present invention increases FM hairs by improveing existing Bluetooth audio device
Module and FM receiver modules are penetrated, realizes that multiple Bluetooth audio devices synchronously play sound.
【Brief description of the drawings】
The schematic diagram of the Bluetooth speaker system that Fig. 1 is provided for the present invention；
The structural representation of the one of Bluetooth audio device of Bluetooth speaker system that Fig. 2 is provided for the present invention；
The signal principle figure of the transmitting terminal Bluetooth audio device of the Bluetooth speaker system that Fig. 3 is provided for the present invention；
The signal principle figure of the receiving terminal Bluetooth audio device of the Bluetooth speaker system that Fig. 4 is provided for the present invention.
【Specific embodiment】
Below in conjunction with the accompanying drawings, the present invention is elaborated.
As shown in Figures 1 to 4, it is a kind of Bluetooth speaker system for providing of the invention.Reference picture 1,
The Bluetooth speaker system includes some Bluetooth audio devices, and some Bluetooth audio devices are included as transmitting terminal
Transmitting terminal Bluetooth audio device and at least one as receiving terminal receiving terminal Bluetooth audio device, this specific implementation
Mode illustrates the present invention in order to understand by taking the Bluetooth speaker system that 3 Bluetooth audio devices are constituted as an example, so
And the situation of the Bluetooth speaker system that the present invention is not constituted with 3 Bluetooth audio devices is limited, the present invention
The situation of the Bluetooth speaker system constituted including multiple Bluetooth audio devices of more than 3.
In this embodiment, Bluetooth audio device 1 is used as transmitting terminal Bluetooth audio device, Bluetooth audio device 2
With Bluetooth audio device 3 as receiving terminal Bluetooth audio device, in fact, it is also an option that Bluetooth audio device 2 is used as hair
Penetrate end Bluetooth audio device, Bluetooth audio device 1 and Bluetooth audio device 3 as receiving terminal Bluetooth audio device mode,
Bluetooth audio device 3 can be selected as transmitting terminal Bluetooth audio device, Bluetooth audio device 1 and the conduct of Bluetooth audio device 2
The mode of receiving terminal Bluetooth audio device, that is to say, that the Bluetooth audio device in Bluetooth speaker system of the invention can
With transmitting terminal Bluetooth audio device each other or receiving terminal Bluetooth audio device.
Reference picture 2, each Bluetooth audio device includes main control chip, bluetooth module, operational amplifier, work(
Electric discharge road, FM transmitter modules, FM receiver modules and loudspeaker, wherein bluetooth module receive bluetooth letter
Number when can automatically disconnect FM receiver modules.Preferably, FM transmitter modules are provided with control FM transmitting moulds
The switch of the opening and closing of block, FM receiver modules are provided with control FM receiver modules and beat on and off
The switch for closing, user can according to demand open or close FM transmitter modules and FM receiver modules.
The operation principle of Bluetooth speaker system of the invention：Reference picture 3, the transmitting terminal Bluetooth audio device
Bluetooth module receive Bluetooth signal and export the first audio signal, first audio signal is by institute
The operational amplifier for stating transmitting terminal Bluetooth audio device passes to the main control chip of the transmitting terminal Bluetooth audio device,
First audio signal described in the main control chip decoding process of the transmitting terminal Bluetooth audio device simultaneously exports audio letter
Breath, the main control chip of the transmitting terminal Bluetooth audio device is by the audio-frequency information by the transmitting terminal bluetooth
The power amplifier of sound equipment passes to the loudspeaker of the transmitting terminal Bluetooth audio device, broadcasts sound, meanwhile, institute
The audio-frequency information is also passed to the transmitting terminal bluetooth sound by the main control chip for stating transmitting terminal Bluetooth audio device
Loud FM transmitter modules, the FM transmitter modules of the transmitting terminal Bluetooth audio device modulate the audio letter
Cease and generate FM FM signals to launch, reference picture 4, the FM of the receiving terminal Bluetooth audio device connects
Receive module and receive the FM FM signals that the transmitting terminal Bluetooth audio device sends, the receiving terminal bluetooth sound
The loud FM receiver modules demodulation FM FM signals and the second audio signal of generation passes to described
The main control chip of receiving terminal Bluetooth audio device, the main control chip decoding process institute of the receiving terminal Bluetooth audio device
State the second audio signal and export the audio-frequency information, the main control chip of the receiving terminal Bluetooth audio device will
The audio-frequency information passes to the receiving terminal bluetooth by the power amplifier of the receiving terminal Bluetooth audio device
The loudspeaker of sound equipment, it is synchronous to play sound.
The present invention increases FM transmitter modules and FM receiver modules by improveing existing Bluetooth audio device,
Realize that multiple Bluetooth audio devices synchronously play sound.
Above-described is only embodiments of the present invention, it should be noted here that general for this area
For logical technical staff, without departing from the concept of the premise of the invention, improvement can also be made,
But these belong to protection scope of the present invention.
Claims (8)
1. a kind of Bluetooth speaker system, it is characterised in that the Bluetooth speaker system includes some bluetooths
Sound equipment, each Bluetooth audio device include main control chip, bluetooth module, operational amplifier, power amplifier,
FM transmitter modules, FM receiver modules and loudspeaker, some Bluetooth audio devices are included as transmitting terminal
Transmitting terminal Bluetooth audio device and at least one as receiving terminal receiving terminal Bluetooth audio device.
2. Bluetooth speaker system according to claim 1, it is characterised in that the transmitting terminal is blue
The bluetooth module of tooth sound equipment receives Bluetooth signal and exports the first audio signal, first audio signal
The master control of the transmitting terminal Bluetooth audio device is passed to by the operational amplifier of the transmitting terminal Bluetooth audio device
Chip, the first audio signal described in the main control chip decoding process of the transmitting terminal Bluetooth audio device is simultaneously exported
Audio-frequency information, the main control chip of the transmitting terminal Bluetooth audio device is by the audio-frequency information by the transmitting
The power amplifier of end Bluetooth audio device passes to the loudspeaker of the transmitting terminal Bluetooth audio device.
3. Bluetooth speaker system according to claim 2, it is characterised in that the transmitting terminal is blue
The audio-frequency information is also passed to the main control chip of tooth sound equipment the FM hairs of the transmitting terminal Bluetooth audio device
Module is penetrated, the FM transmitter modules of the transmitting terminal Bluetooth audio device modulate the audio-frequency information and generate FM
FM signal is launched.
4. Bluetooth speaker system according to claim 1, it is characterised in that the receiving terminal is blue
The FM receiver modules of tooth sound equipment receive the FM FM signals that the transmitting terminal Bluetooth audio device sends, institute
The FM receiver modules for stating receiving terminal Bluetooth audio device demodulate the FM FM signals and generate the second audio
Signal transmission gives the main control chip of the receiving terminal Bluetooth audio device, the master control of the receiving terminal Bluetooth audio device
Second audio signal described in chip decoding process simultaneously exports the audio-frequency information.
5. Bluetooth speaker system according to claim 4, it is characterised in that the receiving terminal is blue
The main control chip of tooth sound equipment passes the audio-frequency information by the power amplifier of the receiving terminal Bluetooth audio device
Pass the loudspeaker of the receiving terminal Bluetooth audio device.
6. Bluetooth speaker system according to claim 1, it is characterised in that some bluetooths
The bluetooth module of sound equipment is automatic when receiving Bluetooth signal to disconnect FM receiver modules.
7. Bluetooth speaker system according to claim 1, it is characterised in that some bluetooths
The FM transmitter modules of sound equipment are provided with the switch of the opening and closing of control FM transmitter modules.
8. Bluetooth speaker system according to claim 1, it is characterised in that some bluetooths
The FM receiver modules of sound equipment are provided with the switch of the opening and closing of control FM receiver modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020250.2A CN106937208A (en) | 2015-12-30 | 2015-12-30 | A kind of Bluetooth speaker system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020250.2A CN106937208A (en) | 2015-12-30 | 2015-12-30 | A kind of Bluetooth speaker system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106937208A true CN106937208A (en) | 2017-07-07 |
Family
ID=59441382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511020250.2A Pending CN106937208A (en) | 2015-12-30 | 2015-12-30 | A kind of Bluetooth speaker system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106937208A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166899A (en) * | 2019-06-06 | 2019-08-23 | 惠州市璧玉音响有限公司 | A kind of 5.1 sound channel wireless sound system of high-fidelity |
| CN110995550A (en) * | 2019-11-20 | 2020-04-10 | 厦门讴歌电子有限公司 | Intelligent home dial-up networking background audio system |
-
2015
- 2015-12-30 CN CN201511020250.2A patent/CN106937208A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166899A (en) * | 2019-06-06 | 2019-08-23 | 惠州市璧玉音响有限公司 | A kind of 5.1 sound channel wireless sound system of high-fidelity |
| CN110995550A (en) * | 2019-11-20 | 2020-04-10 | 厦门讴歌电子有限公司 | Intelligent home dial-up networking background audio system |
| CN110995550B (en) * | 2019-11-20 | 2021-11-30 | 厦门讴歌电子有限公司 | Intelligent home dial-up networking background audio system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |
|
| WD01 | Invention patent application deemed withdrawn after publication |