CN205657799U - Wireless audio frequency and video emitter of USB interface - Google Patents
Wireless audio frequency and video emitter of USB interface Download PDFInfo
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- CN205657799U CN205657799U CN201620493805.9U CN201620493805U CN205657799U CN 205657799 U CN205657799 U CN 205657799U CN 201620493805 U CN201620493805 U CN 201620493805U CN 205657799 U CN205657799 U CN 205657799U
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Abstract
The utility model provides a wireless audio frequency and video emitter of USB interface relates to wireless communication technology field. Wireless audio frequency and video emitter includes PC end and dongle end, the PC end is held in dongle through USB interface connection. The PC hand ladle is drawn together and is used for the audio acquisition unit gathering video information's video acquisition unit and be used for gathering audio information, video acquisition unit is including catching mouse module, catching screen module, the screen processing module of zooming and video encoding module, video acquisition unit and audio acquisition unit connection in USB interface. Central processing module is drawn together to the dongle hand ladle, central processing module is connected with the wiFi module, the button state that are used for launching video information and audio information and detects monitoring module and LED lamp display module. The utility model discloses can solve among the prior art user action and experience poorly, PC is owing to take PC's wireless network interface card and the latter that results in surfing the net the not smooth problem of surfing the net in video transmission.
Description
Technical field
This utility model relates to wireless communication technology field, particularly refers to the wireless audio and video discharger of a kind of USB interface.
Background technology
At present, the wireless audio-video transmission technology of main flow is technology based on WiFi, because WiFi use is wide, the producer of offer chip is many, technology maturation, low cost.And along with the commercialization of 802.11n and 802.11ac agreement so that WiFi transmission bandwidth is greatly improved, and the HD video having enough bandwidth to support multichannel encoded in theory transmits simultaneously.
But, on market, most employing technology based on WiFi realizes the product of wireless audio-video transmission, and it is bad that Consumer's Experience all does, and these products the most all exist following shortcoming:
1. need on PC install software, software operation extremely complex, the operating experience brought to user is very poor, user need certain IT background knowledge could this series products that gets up；
2. take the wireless network card of PC so that wireless with the when of shielding transmission, it is impossible to online or online that can not be the most smooth, limit the online demand of user.
Utility model content
For the deficiencies in the prior art, the utility model proposes the wireless audio and video discharger of a kind of USB interface, it is poor that this discharger can solve the problem that in prior art that user operation is experienced, and PC surfs the Net slack problem.
To achieve these goals, the technical scheme that this utility model is taked is as follows:
The utility model proposes the wireless audio and video discharger of a kind of USB interface, described wireless audio and video discharger includes that PC end and dongle end, described PC end are connected to dongle end by USB interface.
Described PC end includes the video acquisition unit for gathering video information and for gathering the audio collection unit of audio-frequency information, described video acquisition unit includes capturing mouse module, capture screen module, screen scaling processing module and video encoding module, described capture mouse module and capture screen module are connected to screen scaling processing module, described screen scaling processing module is connected to video encoding module, described audio collection unit includes audio sample module and the audio sample rate modular converter being sequentially connected with, described video acquisition unit and audio collection unit are connected to USB interface.
Described dongle end includes the central processing module for processing video information and audio-frequency information being connected with USB interface, and described central processing module connects to be had for launching the WiFi module of video information and audio-frequency information, key-press status detection monitoring modular and LED display module.
Further, described PC end includes windows PC and MAC OS X PC.
Further, described central processing module is Imx283 chip.
Further, described WiFi module is MT7612 chip.
The beneficial effects of the utility model:
1. this utility model uses USB interface, can map out a USB flash disk or CD dish, all modules of PC end is stored in dongle end and is mapped in USB flash disk or the CD dish of PC end, thus can make to plug dongle end on PC and will automatically run or click on and i.e. run；
2.USB interface is general-purpose interface, and USB interface enumerates two kinds of general-purpose interface types, and one is USB HID, and one is Mass Storage, it is possible to accomplish whether windows PC or MAC is OS X PC, can free drive plug and play；
3. this utility model is with WiFi module, can take the wireless network card of PC end, it is achieved wireless same screen transmission and online use simultaneously；
4. with a hardware button on discharger, by short by or long can realize screen by button and start to share to exit with screen to share to wait and operate, bring ultimate attainment simple operations to experience to user；
5. this utility model is provided with USB interface, is powered can be run by USB interface, it is not necessary to extra interface or battery are powered.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the wireless audio and video discharger of a kind of USB interface of this utility model；
Fig. 2 is the block diagram of the PC end of the wireless audio and video discharger of a kind of USB interface of this utility model；
Fig. 3 is the block diagram of the dongle end of the wireless audio and video discharger of a kind of USB interface of this utility model.
Wherein, 100-PC end, 200-dongle end, 300-USB interface, 1-captures mouse module, and 2-captures screen module, 3-screen scaling processing module, 4-video encoding module, 5-audio sample module, 6-audio sample rate modular converter, 7-central processing module, 8-WiFi module, 9-key-press status monitoring modular, 10-LED lamp display module.
Detailed description of the invention
Referring now to accompanying drawing, embodiment of the present utility model is described in detail.It should be noted that what following description was merely exemplary, and be not intended to limit this utility model.Additionally, in the following description, the same or analogous parts being indicated with like reference numerals in different accompanying drawing will be adopted.Different characteristic in different embodiment described below, can be bonded to each other, to form other embodiments in the range of this utility model.
As it is shown in figure 1, the utility model proposes the wireless audio and video discharger of a kind of USB interface, it includes that PC end 100, dongle200 end and USB interface 300, PC end 100 are connected to dongle end 200 by USB interface 300.
With reference to Fig. 2, in this utility model one detailed description of the invention, PC end 100 includes the video acquisition unit for gathering video information and for gathering the audio collection unit of audio-frequency information, described video acquisition unit includes capturing mouse module 1, capture screen module 2, screen scaling processing module 3 and video encoding module 4, described capture mouse module 1 and capture screen module 2 are connected to screen scaling processing module 3, described screen scaling processing module 3 is connected to video encoding module 4, described audio collection unit includes audio sample module 5 and the audio sample rate modular converter 6 being sequentially connected with, described video acquisition unit 5 and audio collection unit 6 are connected to USB interface 300.
Preferably, above-mentioned PC end 100 application program is pure software exploitation, and including two versions, one is windows PC version, and one is MAC OS X PC version.The major function that PC end 100 realizes is capture screen content and mouse, and screen scaling processes, screen coding, sampled voice and audio sample rate conversion, USB HID communication etc..On windows with realize on MAC OS X function above use know-why the most different.For version of window, use assembly and the interface driver of windows offer, it is achieved the sampling of screen, mouse and sound, and the communication of USB HID.Video encoding module uses H.264 algorithm, and the storehouse that screen scaling processes and audio sample rate conversion uses FFmpeg to provide realizes；For MAC OS X version, use assembly and the interface driver of OS X offer, it is achieved screen, mouse and sampled voice, and the communication of USB HID.Video encoding module uses H.264 algorithm, and the storehouse that screen scaling processes and audio sample rate conversion uses OS X to provide realizes.
This utility model uses USB interface 300 to connect PC end 100 and dongle end 200, dongle end 200 can map out a USB flash disk or CD dish on PC end 100, all modules of PC end 100 are stored in dongle end 200 be mapped in USB flash disk or the CD dish of PC end 100, thus can make to plug dongle end on PC and will automatically run or click on and i.e. run；USB interface is general-purpose interface, and USB interface enumerates two kinds of general-purpose interface types, and one is USB HID, and one is Mass Storage, it is possible to accomplish whether windows PC or MAC is OS X PC, can free drive plug and play.
With reference to Fig. 2, dongle end 200 includes the central processing module 7 for processing video information and audio-frequency information being connected with USB interface 300, and described central processing module 7 connects to be had for launching the WiFi module 8 of video information and audio-frequency information, key-press status detection monitoring modular 9 and LED display module 10.Wherein, above-mentioned central processing module 7 is Imx283 chip.
Dongle end 200 leads to USB 2.0 interface and is connected with PC end, is mapped as USB Composite Device on PC, and USB enumeration type is all standard, either windows PC or MAC is OS X PC, all need not install and drives, it is achieved free drive plug and play.On central processing module 7 i.e. iMX283 chip, realize above-mentioned USB Composite Device by software and drive.Then driven by USB Composite Device and realize 3 functions: 1, realize the Signalling exchange with PC end 100 application program and the transmission of audio, video data；2, mapping out a USB flash disk or CD dish by the USB Mass Storage agreement of standard at PC end 100, all modules of PC end 100 are just placed in the USB flash disk mapped out or CD dish；3, by USB HID mouse and the keypad protocol of standard, it is achieved touch display end reverse control signal returns to PC end function.
WiFi module of the present utility model uses the MT7612 chip of MTK company to realize, and this chip supports 2.4GHz and 5GHz two-band, supports 802.11n, 802.11ac agreement, and double antenna, maximum rate is up to 867Mbps.Realize Wi-Fi STA function on software, use Bao Jiang company based on RTSP proprietary protocol and main frame to carry out Signalling exchange and audio, video data transmission.Key-press status monitoring modular Real-time Collection key-press status, short by button is realized pushing away screen, moving back screen and full frame operation by two states by with long.LED display module shows the duty of dongle end in real time, and duty includes electrifying startup state, and with main frame just in connection status, and main frame successful connection and do not push away screen state, with main frame successful connection and pushing away screen state.
In addition to the above, USB interface 300 power supply capacity is 5V/500mA to the maximum, uses Imx283 chip and the MT7612 module of low-power consumption, coordinates the Low-power Technology of software to reduce overall power；Wi-Fi antenna uses onboard PCB double screen antenna, designs shielding case structure, and it is the highest that requirement is put in layout design and antenna model selection and position；By using 6 laminate large area floor file to dispel the heat, and radiation fin mode is dispelled the heat.
This utility model carries WiFi module 8, can take the wireless network card of PC end 100, it is achieved wireless same screen transmission and online use simultaneously；With a hardware button on dongle end, by short by or long can realize screen by button and start to share to exit with screen to share to wait and operate, bring ultimate attainment simple operations to experience to user.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with scope of the claims.
Claims (4)
1. the wireless audio and video discharger of a USB interface, it is characterised in that described wireless audio and video discharger includes PC end (100) and dongle end (200), described PC end (100) is connected to dongle end (200) by USB interface (300)；
Described PC end (100) includes the video acquisition unit for gathering video information and for gathering the audio collection unit of audio-frequency information, described video acquisition unit includes capturing mouse module (1), capture screen module (2), screen scaling processing module (3) and video encoding module (4), described capture mouse module (1) and capture screen module (2) are connected to screen scaling processing module (3), described screen scaling processing module (3) is connected to video encoding module (4), described audio collection unit includes audio sample module (5) and the audio sample rate modular converter (6) being sequentially connected with, described video acquisition unit and audio collection unit are connected to USB interface (300)；
Described dongle end (200) includes the central processing module (7) for processing video information and audio-frequency information being connected with USB interface (300), and described central processing module (7) connects WiFi module (8), key-press status monitoring modular (9) and the LED display module (10) for launching video information and audio-frequency information.
The wireless audio and video discharger of a kind of USB interface the most according to claim 1, it is characterised in that described PC end (100) includes windows PC and MAC OS X PC.
The wireless audio and video discharger of a kind of USB interface the most according to claim 1, it is characterised in that described central processing module (7) is Imx283 chip.
The wireless audio and video discharger of a kind of USB interface the most according to claim 1, it is characterised in that described WiFi module (8) is MT7612 chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620493805.9U CN205657799U (en) | 2016-05-27 | 2016-05-27 | Wireless audio frequency and video emitter of USB interface |
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| CN201620493805.9U CN205657799U (en) | 2016-05-27 | 2016-05-27 | Wireless audio frequency and video emitter of USB interface |
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| CN205657799U true CN205657799U (en) | 2016-10-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106412683A (en) * | 2016-11-16 | 2017-02-15 | 深圳市宝疆科技有限公司 | System and method for realizing audio and video transmission and interactive signaling through USB interface |
| CN106990964A (en) * | 2017-03-30 | 2017-07-28 | 成都伟德利普信息技术有限公司 | A kind of wireless screen transmission method and wireless screen transmission system |
| CN107205175A (en) * | 2017-05-13 | 2017-09-26 | 西安天济网络科技有限公司 | A kind of smart city multi-screen interactive operating system based on video cloud |
| CN107368273A (en) * | 2017-07-07 | 2017-11-21 | 深圳市海勤科技有限公司 | The key operation local area network wireless of plug and play one passes screen operator, system and method |
| WO2018077105A1 (en) * | 2016-10-25 | 2018-05-03 | 中兴通讯股份有限公司 | Dual-stream conference device and method |
| CN109521987A (en) * | 2019-01-17 | 2019-03-26 | 珠海恒宇新科技有限公司 | USB-HID, MS display system and method |
-
2016
- 2016-05-27 CN CN201620493805.9U patent/CN205657799U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018077105A1 (en) * | 2016-10-25 | 2018-05-03 | 中兴通讯股份有限公司 | Dual-stream conference device and method |
| CN106412683A (en) * | 2016-11-16 | 2017-02-15 | 深圳市宝疆科技有限公司 | System and method for realizing audio and video transmission and interactive signaling through USB interface |
| CN106990964A (en) * | 2017-03-30 | 2017-07-28 | 成都伟德利普信息技术有限公司 | A kind of wireless screen transmission method and wireless screen transmission system |
| CN107205175A (en) * | 2017-05-13 | 2017-09-26 | 西安天济网络科技有限公司 | A kind of smart city multi-screen interactive operating system based on video cloud |
| CN107368273A (en) * | 2017-07-07 | 2017-11-21 | 深圳市海勤科技有限公司 | The key operation local area network wireless of plug and play one passes screen operator, system and method |
| CN109521987A (en) * | 2019-01-17 | 2019-03-26 | 珠海恒宇新科技有限公司 | USB-HID, MS display system and method |
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