CN202694803U - WIFI (wireless fidelity)-based portable high-fidelity voice frequency transmission device and system - Google Patents
WIFI (wireless fidelity)-based portable high-fidelity voice frequency transmission device and system Download PDFInfo
- Publication number
- CN202694803U CN202694803U CN 201220261325 CN201220261325U CN202694803U CN 202694803 U CN202694803 U CN 202694803U CN 201220261325 CN201220261325 CN 201220261325 CN 201220261325 U CN201220261325 U CN 201220261325U CN 202694803 U CN202694803 U CN 202694803U
- Authority
- CN
- China
- Prior art keywords
- wifi
- module
- transmission device
- interface
- portable high
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The utility model provides a WIFI (wireless fidelity)-based portable high-fidelity voice frequency transmission device and a WIFI-based portable high-fidelity voice frequency transmission system. The device comprises a control module, and a radio frequency module, a program storage unit, an RAM (random access memory) memory unit and an interface module respectively connected with the control module as well as a voice frequency conversion module connected with the interface module. According to the WIFI-based portable high-fidelity voice frequency transmission device provided by the utility model, a received voice frequency signal is processed by a processor, a process result is transmitted into a voice frequency decoder, and an analog signal is output to terminal equipment after the process result is processed by the voice frequency decoder, so that the high-fidelity music broadcasting can be carried out. According to the utility model, the high-fidelity voice frequency signal can be output on mobile equipment; and meanwhile, the voice frequency data can be transmitted to the mobile equipment, and the process of recording and storing can be completed. The utility model has the advantages of being simple in structure, convenient, practical and the like.
Description
Technical field
The utility model relates to stereo set, relates in particular to a kind of portable audio transmitting device and system that carries out audio transmission by WIFI.
Background technology
Along with improving constantly of people's living standard, mobile intelligent terminal equipment as: smart mobile phone, notebook computer, panel computer etc. have progressed in each family, and people can experience the amusements such as online, music, video by mobile device.
And people's amusement, an important component part is to listen to music.In listening to the process of music, though above-mentioned mobile intelligent terminal equipment can be used to receive and music playing, satisfy people to the requirement of the appreciation of music, but, be not only the audiophile, increasing listener has not satisfied simple music, and they more wish to hear professional high-fidelity audio.Therefore, part family buys professional stereo set, can enjoy high-quality music at home.
But, for ordinary consumer, buy on the one hand professional stereo set, need the no small spending of cost; On the other hand, this professional stereo set, usually volume ratio is larger, is not easy to frequent movement, brings certain constant to the user.
For this reason, need a kind of portable equipment of design badly, play so that carry out the high-fidelity of audio frequency, for people provide high-quality audio frequency result of broadcast.
Summary of the invention
Primary and foremost purpose of the present utility model is to provide a kind of portable newspaper fidelity audio transmission device based on WIFI, and this device can with Hi-Fi audio signal harmless lost territory transmission, be convenient to realize export Hi-Fi audio signal on portable terminal or other playback equipment.
Another purpose of the present utility model is to provide a kind of Portable high fidelity audio transmission system based on WIFI, has simple in structurely, is easy to realize, is convenient to carry out the relay of voice data, and is convenient and practical.
For achieving the above object, the purpose of this utility model is achieved through the following technical solutions.
A kind of Portable high fidelity audio transmission device based on WIFI comprises: be used for docking as received basis band signal and process, and result is transferred to the audio conversion module control module by interface module;
And the radio-frequency module, program storage unit (PSU), memory ram unit, the interface module that link to each other with control module respectively, and the audio conversion module that links to each other with interface module.
Preferably, described interface module comprises: usb data interface, power interface and digital audio interface connect power subsystem by power interface in the interface module.
Preferably, described power subsystem comprises: the battery management system that is connected with USB port, battery is connected between battery management system and the ground, the output of battery links to each other with the input end of DC/DC supply convertor by battery management system again, and the whole system of exporting to of DC/DC supply convertor provides the power supply supply.
Preferably, also comprise linking to each other with described control module, be used for the Ethernet expansion connection module that system firmware upgrades.
Preferably, also comprise the encrypting module that links to each other with described control module.
Preferably, described interface module is provided with user's expansion interface.
Preferably, described radio-frequency module is supported WiFi and Bluetooth transmission function.
A kind of aforesaid Portable high fidelity audio transmission system based on WIFI, comprise intelligent terminal, playback equipment, described intelligent terminal and described audio transmission device are set up wireless connections by the WIFI network, and described playback equipment is connected by audio conversion module with described audio transmission device.
The utility model compared with prior art, beneficial effect is: the Portable high fidelity audio transmission device based on WIFI that the utility model provides, after will receiving sound signal and processing by processor, result is sent into audio decoder, and outputting analog signal carries out the hi-fi music broadcast to terminal device after being processed by audio decoder.The utility model can realize exporting on the mobile device Hi-Fi audio signal; Simultaneously, also voice data can be returned to mobile device, finish and record and storing process.Have the advantages such as simple in structure, convenient and practical.
Description of drawings
Fig. 1 is the utility model audio transmission device theory diagram.
Fig. 2 is control module cut-away view in the utility model audio transmission device.
Fig. 3 is the utility model audio transmission device power subsystem circuit diagram.
Fig. 4 is the utility model audio transmission system theory diagram.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also shown in Figure 1, the utility model comprises based on the portable audio transmitting device of WIFI: control module 4 and the radio-frequency module 2 that links to each other with control module 4 respectively, Ethernet expansion connection module 3, program storage unit (PSU) 5, memory ram unit 6, encrypting module 7, interface module 8.
Radio-frequency module 2 is used for its radiofrequency signal that receives is converted to baseband signal, and this base band signal transmission is arrived control module 4.Adopt SDIO (Secure Digital Input and Output Card) interface at a high speed in this module and being connected of control module, SDIO is a kind of Peripheral Interface that defines in the SD standard, the signal transfer mode of SDIO has three kinds of SPI, 1-bit, 4-bit, wherein the 4-bit mode speed is the fastest, the utility model adopts the 4-bit pattern, to satisfy the high speed requirement of HD Audio transmission.Comprise WiFi module and bluetooth module in this radio-frequency module, it supports IEEE 802.11b/g/n agreement; Emissive power is+12.5dBm ~+20dBm, receiving sensitivity-89dBm ~-73dBm.
Control module 4 is used for docking as received basis band signal to be processed, and result is transferred to audio conversion module 10 by interface module 8.Audio conversion module 10 is used for that the digital audio and video signals that receives is converted to simulated audio signal and carries out music through playback equipment.
Control module 4 also is used for the digital audio and video signals that audio reception modular converter 10 transmits, and after this digital audio and video signals carried out being converted to base band signal transmission after the dissection process and modulates to radio-frequency module 2, data layout with certain agreement sends intelligent terminal (smart mobile phone, notebook computer, panel computer iPad etc.) to by the WiFI wireless network, intelligent terminal is recorded this voice data, to realize the sound-recording function of audio frequency.
See also shown in Figure 2, the control module cut-away view, comprise: control subsystem, ARM subsystem, DSP subsystem and peripheral system resource, wherein the peripheral system resource mainly comprises DMA, audio frequency and video port, serial line interface (IIC, SPI, UART, McASP, McBSP), LCD control interface, general parallel port (uPP), 128KB RAM, timer, USB controller, SATA interface, 10/100M b/s EMAC, MDIO interface, Flash and MDDR interface etc.After system's operation, at first the operation authority is carried out verification, verification begins the initialization related linear program by rear ARM subsystem, starts related service, such as: TCP service main thread, play sub-thread, UDP serves sub-thread, the sub-thread of button, the sub-thread of serial ports, the sub-thread of heartbeat etc.Under play mode, the signal that the WIFI module is sent here enters into the inside of control module by the MDIO interface, the ARM subsystem is to the signal processing of decoding, while separating audio signals and control signal, isolate digital audio and video signals after decoding, and then digital audio and video signals sent into carry out audio frequency in the DSP subsystem and process, the voice data after the processing is exported to the external audio converting unit by the McASP port again, realizes that finally audio frequency plays.Under recording mode, analogue audio frequency after the external audio converting unit will gather converts DAB to, sending the audio frequency that carries out specialty in the inner DSP subsystem to by the McASP port processes, sound signal after the audio frequency that carries out specialty in the DSP subsystem process to be processed is given the ARM subsystem again and is encoded, the ARM subsystem also is responsible for coded audio and control signal are processed together, and the MDIO interface by control module sends the WIFI module to and sends again.Peripheral hardware and the interface of assisting ARM subsystem and the operation of DSP subsystem in modules such as DMA, the IIC of whole control module inside, SPI, UART, USB.
Program storage unit (PSU) 5 is used for the storage system source program and calls the guidance system startup for control module, and is encrypted processing by 7 pairs of systems of encrypting module.Simultaneously also can be by upgrading to the local media playback equipment after the update system program, this moment, media content can be stored in the storer of this unit.
Ethernet expansion connection module 3 is used for the renewal of system firmware, also can realize the Function Extension of native system simultaneously, realizes the expanded application of wired connection.
As shown in Figure 3; the utility model audio transmission device power subsystem circuit diagram; be connected to power subsystem 9 by USB port; detect and control through inner; export to rechargeable battery; the state of power subsystem 9 monitoring rechargeable batteries simultaneously is in case corresponding protection action occurs making when unusual.And information passed to control module 4, realize the purpose of charging and discharging monitoring.The output of rechargeable battery is again as the input of the multichannel DC/DC supply convertor of battery management system in the power subsystem 9, realizes multi-power supply of the present utility model system.Equally, the work state information of power supply also passes to control module 4, realizes the purpose of power conversion monitoring.
User's expansion interface is the functional interface that system keeps for the user, is in order to satisfy different product, and different clients' demand is waited for such as state indication, input and output button, also can be more complicated control system etc.
The audio transmission device that the utility model provides has following function:
Compatible IEEE 802.11b/g/n agreement;
Support many speed rates, namely in the situation that does not affect the music quality, in different wireless environment automatic switchover message transmission rates;
Support the either-way operation of intelligent terminal and this mancarried device, namely support audio file to receive and the audio coding emission;
The highest support high-fidelity 192K sampled audio data transmission;
Support multiple audio format, can carry out encoding and decoding to multiple several audio files (such as mp3, wav, wma, aac, flac, ape);
Support multiple man-machine interface, such as keyboard, LCD display, touch-screen etc.;
Support multi storage, such as SD card, USB flash disk etc.;
Support SymbianOS, WindowsCE and (SuSE) Linux OS, namely make things convenient for software transplanting;
Support ICP/IP protocol;
Support the WiFI wireless network management, have encryption function.
As shown in Figure 4, be the utility model audio transmission system theory diagram, intelligent terminal 1 with WIFI function is set up wireless connections by WIFI network and the utility model audio transmission device, finishes transmitted in both directions and the control of audio frequency, and plays by playback equipment.The utility model provides the functions such as broadcast, storage, control and processing of remote media take autonomous home control network communication protocol as the basis, realizes the possibility that Multifunctional audio is used.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. the Portable high fidelity audio transmission device based on WIFI is characterized in that, comprising: be used for docking as received basis band signal and process, and result is transferred to the audio conversion module control module by interface module;
And the radio-frequency module, program storage unit (PSU), memory ram unit, the interface module that link to each other with control module respectively, and the audio conversion module that links to each other with interface module.
2. the Portable high fidelity audio transmission device based on WIFI as claimed in claim 1 is characterized in that described interface module comprises: usb data interface, power interface and digital audio interface connect power subsystem by power interface in the interface module.
3. the Portable high fidelity audio transmission device based on WIFI as claimed in claim 2, it is characterized in that, described power subsystem comprises: the battery management system that is connected with USB port, battery is connected between battery management system and the ground, the output of battery links to each other with the input end of DC/DC supply convertor by battery management system again, and the whole system of exporting to of DC/DC supply convertor provides the power supply supply.
4. the Portable high fidelity audio transmission device based on WIFI as claimed in claim 1 is characterized in that, also comprises linking to each other with described control module, is used for the Ethernet expansion connection module that system firmware upgrades.
5. the Portable high fidelity audio transmission device based on WIFI as claimed in claim 1 is characterized in that, also comprises the encrypting module that links to each other with described control module.
6. the Portable high fidelity audio transmission device based on WIFI as claimed in claim 4 is characterized in that described interface module is provided with user's expansion interface.
7. the Portable high fidelity audio transmission device based on WIFI as claimed in claim 1 is characterized in that, described radio-frequency module is supported WiFi and Bluetooth transmission function.
8. one kind such as each described Portable high fidelity audio transmission system based on WIFI of claim 1-7, it is characterized in that, comprise intelligent terminal, playback equipment, described intelligent terminal and described audio transmission device are set up wireless connections by the WIFI network, and described playback equipment is connected by audio conversion module with described audio transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261325 CN202694803U (en) | 2012-06-05 | 2012-06-05 | WIFI (wireless fidelity)-based portable high-fidelity voice frequency transmission device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261325 CN202694803U (en) | 2012-06-05 | 2012-06-05 | WIFI (wireless fidelity)-based portable high-fidelity voice frequency transmission device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694803U true CN202694803U (en) | 2013-01-23 |
Family
ID=47550386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261325 Expired - Lifetime CN202694803U (en) | 2012-06-05 | 2012-06-05 | WIFI (wireless fidelity)-based portable high-fidelity voice frequency transmission device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105677292A (en) * | 2016-01-31 | 2016-06-15 | 深圳市牧声美科技有限公司 | Control method and system of WIFI lossless music player |
-
2012
- 2012-06-05 CN CN 201220261325 patent/CN202694803U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105677292A (en) * | 2016-01-31 | 2016-06-15 | 深圳市牧声美科技有限公司 | Control method and system of WIFI lossless music player |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9078058B2 (en) | Applications for a two-way wireless speaker system | |
| CN202310099U (en) | Wireless sounder and system for playing audio through same | |
| US20070232234A1 (en) | Method of wireless conversion by emulation of a non-wireless device | |
| CN104093103A (en) | Wireless smart sound box based on WIFI connection | |
| US8693951B2 (en) | Wireless audio frequency playing apparatus and wireless playing system using the same | |
| CN105307102A (en) | Bluetooth wireless audio transmitter | |
| CN202634685U (en) | Mobile terminal for playing hi-fi music | |
| CN104768105A (en) | Integrated intelligent audio equipment | |
| CN203352726U (en) | DLNA/Airplay/Miracast wireless technology-based audio/video player | |
| CN202694803U (en) | WIFI (wireless fidelity)-based portable high-fidelity voice frequency transmission device and system | |
| CN203132103U (en) | Electric water heater with music playing function | |
| CN103794200A (en) | Portable karaoke device capable of achieving audio access based on WIFI | |
| CN201063615Y (en) | Signal conversion adapter of bluetooth reception and FM signal emission | |
| CN102708914A (en) | Portable high-fidelity audio transmission device and system based on WIFI (Wireless Fidelity) | |
| CN205302942U (en) | On -vehicle audio processing system | |
| CN103152669A (en) | Method for utilizing intelligent terminal to operate voice frequency effector | |
| CN204539423U (en) | Integral intelligent sound equipment | |
| CN208707868U (en) | A kind of microphone and microphone system | |
| CN202696846U (en) | Wireless high-fidelity active earphone | |
| CN203193862U (en) | Wireless Bluetooth sound equipment converter | |
| CN205305087U (en) | Audio amplifier with wifi transmit system | |
| CN203366738U (en) | Audio playing device and audio playing system | |
| CN204229840U (en) | A kind of WiFi music box with sound-recording function | |
| CN203813947U (en) | Intelligent multi-channel surround sound equipment | |
| CN203608359U (en) | Portable wireless digital teaching public address system device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |