CN203327219U - Multifunctional wireless sound system - Google Patents
Multifunctional wireless sound system Download PDFInfo
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- CN203327219U CN203327219U CN2013203508609U CN201320350860U CN203327219U CN 203327219 U CN203327219 U CN 203327219U CN 2013203508609 U CN2013203508609 U CN 2013203508609U CN 201320350860 U CN201320350860 U CN 201320350860U CN 203327219 U CN203327219 U CN 203327219U
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- sound system
- transceiver
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Abstract
The utility model relates to a multifunctional wireless sound system, and belongs to the technical field of multimedia wireless communication. The multifunctional wireless sound system mainly comprises a host computer and an audio receiving slave computer. The host computer is connected with the audio receiving slave computer via a wireless mode. Audio wireless transmission is realized via the PurePath Wireless technology. The host computer comprises an RCA, a coaxial optical fiber receiver, a computer USB, an SD card, a USB flash disc and an IPOD interface. Based on the prerequisite that high-quality wireless transmission of audio signals is realized by the multifunctional wireless sound system, the transmission distance and the system efficiency are enhanced to a larger degree so that functions of the system are enriched, and the multifunctional wireless sound system is suitable for promotion and application.
Description
Technical field
The utility model belongs to the multi-media radio communication technical field, particularly relates to a kind of multifunction wireless sound system.
Background technology
Tradition sound system great majority are all that power signal transfers to audio amplifier by sound wire by the audio signal power amplification, and in use procedure, not only the audio amplifier placement is dumb, and need a large amount of wirings, and operating efficiency is very low.In recent years, the wireless technologys such as bluetooth, infrared and FM start to be applied to the sound equipment field, yet adopt the sound system narrow bandwidth of Bluetooth technology, and transmission range is near, and anti-interference aspect is unsatisfactory; Adopt the sound system directive property of infrared technique strong, can not clear the jumps and be transmitted; And adopt the sound system antijamming capability of FM technology poor, without any confidentiality measure.
Summary of the invention
Goal of the invention:
The utility model provides a kind of multifunction wireless sound system, its purpose is to utilize the advantage of PurePath Wireless technology, realize the non-compression of CD Quality audio signal, the low wireless transmission that postpones, improve the operating efficiency of sound system, realize the wireless transmission distance of audio signal more than 100 meters, expand the audio interface of sound system simultaneously, enrich systemic-function.
Technical scheme:
The utility model is achieved through the following technical solutions:
A kind of multifunction wireless sound system is characterized in that: this sound system mainly comprises that main frame and audio frequency receive slave, and main frame receives slave by wireless mode and audio frequency and is connected.
It is one or two that described audio frequency receives slave.
Main frame comprises signal interface circuit, demonstration and control circuit and wireless audio transceiver, signal interface circuit comprises RCA interface circuit, computer USB decoder, coaxial optical fiber receiver, USB flash disk/SD card/IPOD interface circuit, signal selector, RCA interface circuit, computer USB decoder, coaxial optical fiber receiver, USB flash disk/SD card/IPOD interface circuit are connected with signal selector respectively, show with control circuit and comprise main control MCU, liquid crystal display screen and keyboard, liquid crystal display screen, keyboard and signal selector are connected with main control MCU, and wireless audio transceiver is connected with signal selector.
Audio frequency receives slave and comprises wireless audio transceiver, digital to analog converter, power amplifier and audio amplifier binding post, wireless audio transceiver linking number weighted-voltage D/A converter, and digital to analog converter connects power amplifier, and power amplifier connects the audio amplifier binding post.
Described wireless audio transceiver comprises ANTENN AUDIO chip, peripheral circuit, audio network status indicator lamp and pairing button, ANTENN AUDIO built-in chip type ARM Cortex M3 processor, 2.4G wireless transceiver, the audio frequency coprocessor, the audio network status indicator lamp is connected with the ANTENN AUDIO chip with the pairing button.
Advantage and effect:
Enforcement by technical solutions of the utility model, can realize from analog audio interface, coaxial interface, optical fiber interface, computer USB interface, USB flash disk, SD card, IPOD interface the selective reception stereophonic signal and carry out the non-compression wireless transmission of CD Quality level, be reduced to analog signal and carry out power amplification output at receiving terminal, drive the function of audio amplifier sounding, wireless transmission distance can reach more than 100 meters.
Advantage of the present utility model and good effect are:
1, the audio signal wireless transmission, removed wiring from, and audio amplifier is put flexibly;
2, without the sound wire insertion loss, the high efficiency of system, low-carbon environment-friendly;
2, the wireless audio frequency transmission function scheme has AFH, forward error correction, and the voice data mistake retransmits, and a series of characteristics such as healing automatically after network loss, have good compossibility with other 2.4G system;
4, audio signal quality is high, supports 24bit, the non-compression wireless transmission of 48KHz signal stream;
5, transmission delay is low to moderate 15ms, and synchronism is good;
6, the audio wireless transmission range is larger than the lifting of conventional wireless sound system, can reach more than 100 meters;
7, host function is abundant, and audio interface comprises analogue audio frequency RCA interface, coaxial interface, optical fiber interface, computer USB interface, USB flash disk, SD card, the multiple audio interface of IPOD interface.
The accompanying drawing explanation:
Fig. 1 is the utility model overall schematic;
Fig. 2 is the utility model main machine structure schematic diagram;
Fig. 3 is that the utility model audio frequency receives the slave structural representation;
Fig. 4 is the utility model host circuit schematic diagram;
Fig. 5 is that the utility model audio frequency receives the slave circuit theory diagrams;
Fig. 6 is the utility model wireless audio transceiver circuit theory diagrams.
Description of reference numerals:
Main frame, 2. audio frequency receives slave, 3. RCA interface circuit, 4. computer USB decoder, 5. coaxial optical fiber receiver, 6. USB flash disk/SD card/IPOD interface circuit, 7. signal selector, 8. main control MCU, 9. liquid crystal display screen, 10. wireless audio transceiver, 11. keyboards, 12. digital to analog converters, 13. power amplifiers, 14. audio amplifier binding posts, 15. audio network status indicator lamps, 16. pairing buttons.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is added and is described further:
The utility model is a kind of multifunction wireless sound system, it is characterized in that: Fig. 1 is general structure schematic diagram of the present utility model, as shown in fig. 1: this sound system comprises that main frame 1 and audio frequency receive slave 2, and main frame 1 receives slave 2 by wireless mode and audio frequency and is connected.
It is one (monophonic mode) or two (stereo mode) that described audio frequency receives slave 2.
Fig. 2 is main machine structure schematic diagram of the present utility model, as shown in Figure 2: main frame 1 comprises signal interface circuit, demonstration and control circuit and wireless audio transceiver 10, signal interface circuit comprises RCA interface circuit 3, computer USB decoder 4, coaxial optical fiber receiver 5, USB flash disk/SD card/IPOD interface circuit 6, signal selector 7, RCA interface circuit 3, computer USB decoder 4, coaxial optical fiber receiver 5, USB flash disk/SD card/IPOD interface circuit 6 is connected with signal selector 7 respectively, show with control circuit and comprise main control MCU 8, liquid crystal display screen 9 and keyboard 11, liquid crystal display screen 9, keyboard 11 is connected with main control MCU 8 with signal selector 7, wireless audio transceiver 10 is connected with signal selector 7.
Fig. 3 is that audio frequency of the present utility model receives the slave structural representation, as shown in Figure 3: audio frequency receives slave 2 and comprises wireless audio transceiver 10, digital to analog converter 12, power amplifier 13 and audio amplifier binding post 14, wireless audio transceiver 10 linking number weighted-voltage D/A converters 12, digital to analog converter 12 connects power amplifier 13, and power amplifier 13 connects audio amplifier binding post 14.
Fig. 6 is wireless audio transceiver circuit theory diagrams of the present utility model, as shown in Figure 6: wireless audio transceiver 10 comprises ANTENN AUDIO chip, peripheral circuit, audio network status indicator lamp 15 and pairing button 16, ANTENN AUDIO built-in chip type ARM Cortex M3 processor, 2.4G wireless transceiver, the audio frequency coprocessor, audio network status indicator lamp 15 is connected with the ANTENN AUDIO chip with pairing button 16.
The physical circuit principle of main frame and slave is as shown in Figure 4, Figure 5:
As shown in Figure 4: the RCA interface circuit in main frame comprises audio frequency analog to digital converter, pll clock circuit and RCA interface, the pll clock circuit produces audio clock to the audio frequency analog to digital converter, the audio frequency analog to digital converter constantly by the simulated audio signal of RCA interface with 44.1KHz, the specification of 16bit is carried out the digitlization conversion, the I of output
2S audio data stream access signal selecting circuit; USB flash disk/SD card/IPOD interface circuit comprises the SD deck, flash disk and IPOD socket and managing chip circuit, and managing chip passes through I
2The mode of C bus is communicated by letter with main control MCU, and managing chip inside carries device interface protocol, can read voice data and be converted into I from above-mentioned three kinds of equipment according to the MCU order
2The output of S audio data stream, data flow access signal selecting circuit; The computer USB interface circuit comprises protocol chip and interlock circuit, chip self-carried USB agreement and driving, and peripheral circuit is I by chip configuration
2The S output mode, protocol chip with can automatically the in progress audio frequency of computer be walked around to the output of sound card number, the I of output after computer is connected
2S audio data stream access signal selecting circuit; The coaxial optical fiber interface circuit comprises protocol chip and peripheral circuit, can control selective reception coaxially or fiber-optic signal according to MCU, and be decoded as I
2S output, the I of output
2S audio data stream access signal selecting circuit; Signal selecting circuit consists of data selector, can, according to the control of MCU, select different I
2The S audio signal stream is exported to wireless audio transceiver; Button is for the system control command input; Liquid crystal is for display system running parameter and man-machine interaction; Wireless audio transceiver in main frame receives I
2The S audio data stream is also carried out wireless transmission; Governor circuit comprises MCU and peripheral circuit, and MCU drive system each several part hardware device carries out integral body to system and controls.
As shown in Figure 5: audio frequency receive wireless audio transceiver received audio signal in slave and by audio signal with I
2The data flow output of S, I
2The S data flow is reduced to simulated audio signal after entering digital to analog converter, and simulated audio signal connects the audio amplifier binding post after power amplification circuit, and then drives audio amplifier to occur, and power circuit is whole slave power supply.
The physical circuit principle of wireless audio transceiver is as shown in Figure 6: wireless audio transceiver mainly comprises protocol chip and radio-frequency front-end power amplifier.
Wireless audio transceiver is configured by PurePath Wireless Configurator software, by CC Debugger downloader loading configuration file download, used a pair of two modes of wireless audio transceiver in this system, wireless audio transceiver in main frame is configured to the Master pattern, the wireless audio transceiver that two audio frequency receive in slave is configured to the Slave pattern, receive respectively left and right sound track signals, by the wireless transmission of the Configuration stereo audio passage to inside modules audio stream and IO mapping, program needs after having downloaded wireless audio transceiver Master and wireless audio transceiver Slaver are carried out to pre-networking pairing, process is as follows: wireless audio transceiver Master and two wireless audio transceiver Slaver are powered on, can see that three audio network status indicator lamps 15 are all with approximately bright with 0.02 second, 0.98 the rule of going out second flicker, at this moment press the pairing button 16 of a wireless audio transceiver Master, then press respectively the pairing button 16 of a wireless audio transceiver Slaver, can see that three audio network status indicator lamps 15 are all bright with about 0.5 second, 0.5 the rule of going out second starts flicker, mean pre-networking success, so far, after powering on, wireless audio transceiver just can automatically initiate network, automatically add network transmitting data in real time.
This multifunction wireless sound system of the utility model, its purpose is that its purpose is to utilize the technical advantage of PurePath Wireless, guaranteeing the non-compression of audio signal, the low delay under the transmission prerequisite, enrich systemic-function, improve system works efficiency, realize audio signal than remote wireless transmission.
Claims (4)
1. a multifunction wireless sound system, it is characterized in that: this sound system mainly comprises that main frame (1) and audio frequency receive slave (2), main frame (1) receives slave (2) by wireless mode and audio frequency and is connected, main frame (1) comprises signal interface circuit, demonstration and control circuit and wireless audio transceiver (10), signal interface circuit comprises RCA interface circuit (3), computer USB decoder (4), coaxial optical fiber receiver (5), USB flash disk/SD card/IPOD interface circuit (6), signal selector (7), RCA interface circuit (3), computer USB decoder (4), coaxial optical fiber receiver (5), USB flash disk/SD card/IPOD interface circuit (6) is connected with signal selector (7) respectively, show with control circuit and comprise main control MCU (8), liquid crystal display screen (9) and keyboard (11), liquid crystal display screen (9), keyboard (11) is connected with main control MCU (8) with signal selector (7), wireless audio transceiver (10) is connected with signal selector (7).
2. a kind of multifunction wireless sound system according to claim 1 is characterized in that: described audio frequency receives slave (2) for one or two.
3. a kind of multifunction wireless sound system according to claim 1, it is characterized in that: audio frequency receives slave (2) and comprises wireless audio transceiver (10), digital to analog converter (12), power amplifier (13) and audio amplifier binding post (14), wireless audio transceiver (10) linking number weighted-voltage D/A converter (12), digital to analog converter (12) connects power amplifier (13), and power amplifier (13) connects audio amplifier binding post (14).
4. a kind of multifunction wireless sound system according to claim 1, it is characterized in that: described wireless audio transceiver (10) comprises ANTENN AUDIO chip, peripheral circuit, audio network status indicator lamp (15) and pairing button (16), ANTENN AUDIO built-in chip type ARM Cortex M3 processor, 2.4G wireless transceiver, the audio frequency coprocessor, audio network status indicator lamp (15) is connected with the ANTENN AUDIO chip with pairing button (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203508609U CN203327219U (en) | 2013-06-19 | 2013-06-19 | Multifunctional wireless sound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203508609U CN203327219U (en) | 2013-06-19 | 2013-06-19 | Multifunctional wireless sound system |
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| CN203327219U true CN203327219U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203508609U Expired - Fee Related CN203327219U (en) | 2013-06-19 | 2013-06-19 | Multifunctional wireless sound system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471565A (en) * | 2018-03-21 | 2018-08-31 | 春秋航空技术发展江苏有限公司 | Ground wireless headphone system |
| 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 |
| CN112565982A (en) * | 2019-09-26 | 2021-03-26 | 北京塞宾科技有限公司 | Interactive sound box and sound reinforcement method using same |
-
2013
- 2013-06-19 CN CN2013203508609U patent/CN203327219U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471565A (en) * | 2018-03-21 | 2018-08-31 | 春秋航空技术发展江苏有限公司 | Ground wireless headphone system |
| CN112565982A (en) * | 2019-09-26 | 2021-03-26 | 北京塞宾科技有限公司 | Interactive sound box and sound reinforcement method using same |
| CN112565982B (en) * | 2019-09-26 | 2022-03-25 | 北京塞宾科技有限公司 | Interactive sound box and sound reinforcement method using same |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131204 Termination date: 20170619 |