CN105913626A - Device for mirroring from source-end display screen to destination-end display screen - Google Patents
Device for mirroring from source-end display screen to destination-end display screen Download PDFInfo
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- CN105913626A CN105913626A CN201510662590.9A CN201510662590A CN105913626A CN 105913626 A CN105913626 A CN 105913626A CN 201510662590 A CN201510662590 A CN 201510662590A CN 105913626 A CN105913626 A CN 105913626A
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Abstract
The invention discloses a device for mirroring from a source-end display screen to a destination-end display screen. The device comprises a processor, a memory which is connected to the processor and is used for data caching, a USB-HUB expansion interface module which is connected to the processor and is used for providing an external interface, a first radio signal module which is connected to the processor and is used for wireless connection with an external terminal device, a second radio signal module which is connected to the USB-HUB expansion interface module and is used for connection with an external wireless network, a HDMI port which is connected to the processor and is used for connection with an external displayer, and a power module which is connected to the processor, the first radio signal module and the second radio signal module. The device can receive a WIFI signal from a computer or a hand-held terminal, is connected to a far-end large-size displayer or projector and realizes mirroring from a source-end display screen to a destination-end display screen.
Description
Technical field
The present invention relates to a kind of equipment realized from source display screen to the image feature of destination display screen, particularly relate to one and fly figure box.
Background technology
In the work of reality and life, the real-time Transmission of video flowing is a difficult problem.As in meeting room, if it is desired to the picture on mobile phone or video are sent to projector, generally require and the content on mobile phone is first copied on computer, then computer is connected to projector by VGA line, then realize sharing of picture, video and sound；And for example sharing the picture on mobile phone together with household, the most individuals gather together, stare at mobile phone screen and see, and cannot Real-Time Sharing on TV or other display device together.
To this end, applicant designs a kind of equipment, this equipment is for receiving the WIFI signal of computer or handheld terminal, and is connected to far-end large-sized monitor or projector, it is achieved from source display screen to the image feature of destination display screen.This functional realiey can be by computer or the picture of handheld terminal, video and sound Real-Time Sharing to far-end large-sized monitor or projector by shirtsleeve operation, similarly being that picture has been flown to far-end large-sized monitor or projector by computer or handheld terminal, we are named to it to cry and fly figure box.
Summary of the invention
For realizing by receiving computer or the WIFI signal of handheld terminal, and by computer or the image of handheld terminal, video and sound synchronous wireless transmission to far-end large-sized monitor or projector, the present invention provides one to fly figure box, for receiving the WIFI signal of computer or handheld terminal, and it is connected to far-end large-sized monitor or projector, it is achieved from source display screen to the image feature of destination display screen.
The present invention flies figure box, including:
Processor；
It is connected with described processor, for data cached memorizer；
It is connected with described processor, for providing the USB-HUB expansion connection module of external interface；
It is connected with described processor, for the first wireless signal module of wireless connections exterior terminal equipment；
It is connected with described USB-HUB expansion connection module, for connecting the second wireless signal module of external wireless network；
It is connected with described processor, for connecting the HDMI of exterior display device；
The power module being connected with described processor, the first wireless signal module and the second wireless signal module.
As the improvement of such scheme, described in fly what figure box also included being connected with described processor, control and the startup/clock circuit of clock alignment for starting, described startup/clock circuit is also connected with described power module.
As the improvement of such scheme, described in fly what figure box also included being connected with described processor, for transmitting the Audio interface of audio signal.
As the improvement of such scheme, described in fly the VGA input interface that figure box also includes being connected with described processor.
As the improvement of such scheme, described in fly the LAN interface that figure box also includes being connected with described processor.
As the improvement of such scheme, described in fly what figure box also included being connected with described processor, for sending the bluetooth module of audio signal.
Compared with prior art, the figure box that flies disclosed by the invention can receive the WIFI signal of computer or handheld terminal, and is connected to far-end large-sized monitor or projector, it is achieved from source display screen to the image feature of destination display screen.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention flies one specific embodiment of figure box；
Fig. 2 is audio frequency and video and the flow chart of picture that the present invention flies figure box reception Windows transmitting terminal；
Fig. 3 is audio frequency and video and the flow chart of picture that the present invention flies figure box reception Android and IOS handheld terminal.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Referring to Fig. 1, the present invention flies figure box, including processor 1；It is connected with described processor 1, for data cached memorizer 2；It is connected with described processor 1, for providing the USB-HUB expansion connection module 3 of external interface；It is connected with described processor 1, for the first wireless signal module 4 of wireless connections exterior terminal equipment；It is connected with described USB-HUB expansion connection module 3, for connecting the second wireless signal module 5 of external wireless network；It is connected with described processor, for connecting the HDMI 6 of exterior display device；The power module 7 being connected with described processor the 1, first wireless signal module 4 and the second wireless signal module 5.
As a preferred embodiment of the present invention, described in fly what figure box also included being connected with described processor 1, control and the startup/clock circuit 8 of clock alignment for starting, described startup/clock circuit 8 is also connected with described power module 7.Described startup/clock circuit 8 may be used for: one is can to receive remote controller to send the control signal of coming, and operates flying figure box；Two is that carry out clock with computer synchronization, and starts more newer command, updates with timing and flies figure box software version and built in video content.
As another preferred embodiment of the present invention, described in fly what figure box also included being connected with described processor 1, for transmitting the Audio interface 9 of audio signal.Audio interface 9 is for being connected to the audio interface of outer audio equipment or display device, to realize the transmission of audio signal.
As another preferred embodiment of the present invention, described in fly the VGA input interface 10 that figure box also includes being connected with described processor 1.By internal circuit, fly figure box and the VGA signal format of input can be converted to HDMI form, then exported by HDMI 6, thus realize the VGA conversion to HDMI..
As another preferred embodiment of the present invention, described in fly the LAN interface 11 that figure box also includes being connected with described processor 1.Fly figure box and may be coupled to Internet network by LAN interface 11, and connect described first wireless signal module 4 and the second wireless signal module 5 by a bridging functionality module, thus realize data interaction.Described first wireless signal module 4 is used for connecting the terminal unit such as computer, mobile phone；Second wireless signal 5 is used for connecting external wireless network.Wherein said first wireless signal module 4 for being operated in AP/P2P pattern, when have android system by Miracast agreement attempt with fly figure box be connected time, the first wireless signal module 4 is operated in P2P pattern；When outside Windows/IOS equipment with fly figure box be connected time, the first wireless signal module 4 is operated in ap mode to transmit data.
As another preferred embodiment of the present invention, described in fly what figure box also included being connected with described processor 1, for sending the bluetooth module (not shown) of audio signal.Bluetooth module may be connected to external subwoofer or other audio frequency apparatus.
Fly in the terminal of figure box requiring connect to, have and fly the software that figure box matches.Wherein the transmitting terminal of IOS system and android system uses AirPlay and the Miracast software carried to send video data.Below as a example by the transmitting software of Windows system source, explain picture and the transmission process of audio, video data.
After the software of transmitting terminal starts, first can be confirmed whether and fly figure box and have built up and be connected, without setting up connection, then can find the wireless access points flying figure box, and set up connection therewith；If have changed password or there occurs other fault, can manually complete WiFi and connect.
Setting up after connecting, software judges firstly the need of to the display content of screen, and confirmation is to play dynamic video or still image.If in play still image, then software can direct screen printing content and acoustic information, and use H.264 to picture compression encode, use ACC to sound compression encode, then use Transmission Control Protocol encapsulation transmission.It addition, program also can start another separate threads, individually capture mouse, send after TCP encapsulation.
If dynamic video play by screen, then first program can obtain the state of player, and player status is sent to fly figure box；The state of player includes broadcasting, stopping, playing progress rate, F.F., falls back.Meanwhile, another thread also can directly read video file data according to the video file path of player plays, and with TCP, video file data encapsulated, and is then sent to fly figure box.
If existing still image on computer screen, have again dynamic video, i.e. dynamic video window not to maximize, then two above thread independent operating, does not interfere with each other, so flying figure box both can receive dynamic video stream, can receive again still image.
At Windows transmitting terminal, four class data are mainly had to be sent to fly figure box: mouse state information, static images and acoustic information, dynamic video stream, player status information, four category informations are all individually to be sent by four independent threads, are independent of each other.
When have terminal unit attempt with fly figure box be connected time, fly figure box first determine whether connect terminal type.Fly figure box at present and support the connection terminal of three types.One be operating system be the terminal of Windows system, mainly notebook and desktop computer；Two is the handheld terminal being provided with android system, including mobile phone and Pad；Three is the handheld terminal installing iOS, including iPhone and iPad.Fly figure box according to different connection terminal types, use different reception handling processes.The most respectively three handling processes are illustrated.
Fig. 2 is the terminal being provided with Windows system and fly the process chart after figure box is connected.After confirming that terminal is Windows system, the data type received is judged.The data type received has four kinds, respectively mouse message, static images and audio-frequency information, dynamic video stream, player status.For the mouse message obtained, after directly carrying out Transmission Control Protocol parsing, according to mouse code, reduction mouse shape, and put into video memory；For the static images obtained and voice data, it is also desirable to directly carry out Transmission Control Protocol parsing, then carry out audio frequency and video separation.Video signal sends into video memory, and audio signal sends into audio driver；For the dynamic video stream obtained, after carrying out protocol analysis, it is directly placed into video file buffer.And after another road obtains the broadcast state of dynamic video streaming player, video file can be read in video file buffer according to broadcast state, and send into separation audio/video flow module.The video signal separated enters video memory, and audio signal enters audio driver.Video memory signal out gives HDMI 6, and the signal that audio driver is out is divided into two-way, one tunnel is to again send out to audio amplifier by bluetooth module or the second wireless signal module 5, and another road is that the video signal with HDMI 6 converges, and is sent to display device by HDMI 6.It addition, audio signal externally exports also by Audio interface 9.
Fig. 3 is that to connect terminal be the process chart that Android device or iOS terminal connect when flying figure box.
Due to version after android system 4.2, itself carry Miracast mirror image and send agreement, so we avoid the need for installing router at Android device end, use the Miracast agreement that it carries.Flying figure box receiving terminal, after having Miracast protocol connection request, first having to network interface card to be set to GO&STA state, being held consultation with Android device end by P2P pattern is connected.After in connection, owing to the Streaming Media of Miracast agreement is RTSP pattern, so needing the data stream received is carried out RTSP Streaming Media parsing, thus obtain audio, video data.The audio, video data obtained is sent into and is separated audio frequency and video functional module, separates.Flow chart of data processing below is the most the same with the flow process of Windows system terminal, carries out audio frequency and video transmission process.
As follows for connecting the reception flow process that terminal is iOS system: when having iOS terminal when flying near figure box, figure box can be flown by mDNS protocol discovery, after finding to fly figure box, can be connected by the AirPlay agreement that iOS terminal carries and fly figure box.Connection completes, and flies figure box and the data stream received carries out Transmission Control Protocol parsing, and be decrypted, the data after resolving this is because iOS has carried out once encrypting for its mirror image data sent.I.e. obtaining complete audio, video data after deciphering, these data are sent into audio frequency and video separation module, processing below is the most identical with the handling process of Windows system.
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (6)
1. one kind realizes from source display screen to the equipment of the image feature of destination display screen, it is characterised in that including:
Processor；
It is connected with described processor, for data cached memorizer；
It is connected with described processor, for providing the USB-HUB expansion connection module of external interface；
It is connected with described processor, for the first wireless signal module of wireless connections exterior terminal equipment；
It is connected with described USB-HUB expansion connection module, for connecting the second wireless signal module of external wireless network；
It is connected with described processor, for connecting the HDMI of exterior display device；
The power module being connected with described processor, the first wireless signal module and the second wireless signal module.
Realization the most according to claim 1 from source display screen to the equipment of the image feature of destination display screen, it is characterized in that, also including being connected with described processor, controlling and the startup/clock circuit of clock alignment for starting, described startup/clock circuit is also connected with described power module.
Realization the most according to claim 1 from source display screen to the equipment of the image feature of destination display screen, it is characterised in that also include being connected with described processor, for transmitting the Audio interface of audio signal.
Realization the most according to claim 1 from source display screen to the equipment of the image feature of destination display screen, it is characterised in that also include the VGA input interface being connected with described processor.
Realization the most according to claim 1 from source display screen to the equipment of the image feature of destination display screen, it is characterised in that also include the LAN interface being connected with described processor.
6., according to realizing from source display screen to the equipment of the image feature of destination display screen described in any one of claim 1-6, it is characterised in that also include being connected with described processor, it is used for sending the bluetooth module of audio signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510662590.9A CN105913626A (en) | 2015-10-14 | 2015-10-14 | Device for mirroring from source-end display screen to destination-end display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510662590.9A CN105913626A (en) | 2015-10-14 | 2015-10-14 | Device for mirroring from source-end display screen to destination-end display screen |
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| CN105913626A true CN105913626A (en) | 2016-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327607A (en) * | 2018-09-03 | 2019-02-12 | 南京理工大学 | One kind is based on the mobile lecture system of smart phone |
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Application publication date: 20160831 |