CN107888860A - A kind of implementation method of high definition HDMI video signal acquiring system - Google Patents
A kind of implementation method of high definition HDMI video signal acquiring system Download PDFInfo
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- CN107888860A CN107888860A CN201610860692.6A CN201610860692A CN107888860A CN 107888860 A CN107888860 A CN 107888860A CN 201610860692 A CN201610860692 A CN 201610860692A CN 107888860 A CN107888860 A CN 107888860A
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- hdmi
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- high definition
- video
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 241001269238 Data Species 0.000 claims abstract description 7
- 230000005236 sound signal Effects 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 210000004209 hair Anatomy 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- GJWAPAVRQYYSTK-UHFFFAOYSA-N [(dimethyl-$l^{3}-silanyl)amino]-dimethylsilicon Chemical compound C[Si](C)N[Si](C)C GJWAPAVRQYYSTK-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The present invention relates to a kind of implementation method of high definition HDMI video signal acquiring system, the signal input of input module first passes through HDMI coding rods, the HDMI signals of high definition is encoded, H264 compressions are carried out by chip, pass through high speed data conversion, the USB Large Volume Datas of standard are converted into, access cell phone apparatus USB interface；Cell phone apparatus APP softwares receive usb data and decoded, and show the vision signal and audio signal collected；After mobile phone receives audio, video data, image is handled, the signal such as insertion figure layer, word, video, audio, the video signal of a mixing is converted into, passes through net distribution.The present invention has the beneficial effect that：Without powering in addition；WIFI or netting twine is not needed to carry out data transmission；The mixing of HDMI video and external audio frequency can be achieved；There is simple circuit, system stabilization, zero configuration, plug and play；It is convenient for carrying；Cost is low, and small product size is small.
Description
Technical field
The present invention relates to video signal collective technology, more particularly to a kind of realization of high definition HDMI video signal acquiring system
Method.
Background technology
Vision signal refers to TV signal, still image signal and visual TV image signal.HDMI is to be based on DVI
(Digital Visual Interface) is formulated, and is considered as DVI reinforcing and extension, and both can be compatible.HDMI exists
Keep that in the case of high-quality uncompressed high-resolution video and multichannel audb data can be transmitted with digital form, most
High data transmission bauds is 5Gbps；HDMI can support all ATSC HDTV standards, can not only meet current highest image quality
1080p resolution ratio, moreover it is possible to support the state-of-the-art digital audio format such as DVDAudio, only connected with a HDMI wire, exempted
Digital audio wiring.
Compared with DVI, the volume of HDMI is smaller and can simultaneous transmission audio and vision signal.HDMI(High-
Definition Multimedia Interface) be otherwise known as HDMI, and it is first support in single cable
Upper transmission, connect without digital fine definition, multichannel audio and the intelligent format of overcompression and the numeral of control command data
Mouthful.
HDMI comes from DVI interface technology, and generally, HDMI connections are made up of a pair of signal sources and recipient, sometimes
Also comprising multiple HDMI inputs or output equipment in one system.Each HDMI signal input interfaces establishing criteria, which receives, to be connected
The information of device is connect, same signal output interface can also carry all signal messages.HDMI data wires and receiver include three
Different TMDS data messages passages and a clock lane, these passages support video, voice data and additional information, depending on
Frequently, voice data and additional information are sent on receiver by three passages
The source code form of HDMI inputs includes wrapping in video pixel data, control data and packet wherein packets
Containing voice data and side information data, the processing of HDMI data message has various ways；HDMI data pass
Defeated process is divided into three parts：Video data transmission phase, island data transfer period and control data transmission phase.Video data transmission
Phase, video pixel signal is transmitted on HDMI data wires, vision signal is encoded, generates video data stream, is input to HDMI hairs
In emitter.
The purpose of this case system implementation is in use, can coordinate seedlings of cereal crops LIVE softwares (Android Android systems in addition
System, apple IOS systems), HDMI signals are gathered, net cast is carried out by mobile phone, solving HDMI high-definition digitals signal can not enter
Enter mobile phone and carry out live problem.Meanwhile by coordinating seedlings of cereal crops LIVE softwares to realize the function of instructor in broadcasting's platform, divided by wechat
Enjoy, realize live broadcasting, while can also solve the on-the-spot broadcasting demand of professional TV programme producers.
Therefore, in view of the above, needing effectively to innovate prior art.
The content of the invention
For disadvantages described above, the present invention provides a kind of system stabilization, zero configuration, plug and play, is convenient for carrying, implementation cost
The implementation method of relatively low high definition HDMI video signal acquiring system, to solve many deficiencies of prior art.
To achieve the above object, the present invention uses following technical scheme：
A kind of implementation method of high definition HDMI video signal acquiring system, is comprised the steps of：
(1) arrangement coding rod, input module, USB power source module, cell phone apparatus and cloud distribution platform equipment composition system
System；
(2) the signal input of input module first passes through HDMI coding rods, and the HDMI signals of high definition is encoded, passes through core
Piece carries out H264 compressions, by high speed data conversion, is converted into the USB Large Volume Datas of standard, accesses cell phone apparatus USB and connect
Mouthful；
(3) cell phone apparatus APP softwares receive usb data and decoded, and show the vision signal and audio signal collected；
If USB interface data can not be converted into Wifi networks by MT7688 modules by mobile phone USB interface input data,
Received by mobile phone WIFI network, cell phone application software carries out decoding the vision signal collected and audio letter after receiving data
Number；
(4) after mobile phone receives audio, video data, image is handled, the letter such as insertion figure layer, word, video, audio
Number, the video signal of a mixing is converted into, cloud platform server is pushed to by mobile phone 4G networks or WIFI network
It is distributed.
The coding rod uses band external audio frequency input module；Encode rod or using WIFI module.
The implementation method of high definition HDMI video signal acquiring system of the present invention has the beneficial effect that：
(1) by the system, the USB interface of mobile phone is directly powered to HDMI coding rods, without power supply in addition；
(2) data can directly be transmitted by android system mobile phone USB interface, it is not necessary to which WIFI or netting twine carry out data
Transmission；
(3) rod can be encoded by WIFI connections by IOS systems, realizes data transfer；
(4) inputted by increasing external audio frequency, the mixing of HDMI video and external audio frequency can be achieved；
(5) there is simple circuit, system stabilization, zero configuration, plug and play；
(6) system bulk is identical with USB flash disk size, is convenient for carrying, using more convenient；
(7) cost is low, and small product size only has the 30% of other products.
Brief description of the drawings
The present invention is described in further detail below according to accompanying drawing.
Fig. 1 is in the HDMI coding rods of the implementation method of high definition HDMI video signal acquiring system described in the embodiment of the present invention
Portion's schematic diagram；
Fig. 2 is outside the HDMI coding rods of the implementation method of high definition HDMI video signal acquiring system described in the embodiment of the present invention
Shell schematic diagram；
Fig. 3 is that the HDMI coding rods of the implementation method of high definition HDMI video signal acquiring system described in the embodiment of the present invention connect
Mouth schematic diagram；
Fig. 4 is that the band external audio frequency of the implementation method of high definition HDMI video signal acquiring system described in the embodiment of the present invention is defeated
The HDMI coding rod schematic internal views entered；
Fig. 5 is that the band external audio frequency of the implementation method of high definition HDMI video signal acquiring system described in the embodiment of the present invention is defeated
Enter and encode rod schematic internal view with WIFI HDMI；
Fig. 6 is the theory of constitution signal of the implementation method of high definition HDMI video signal acquiring system described in the embodiment of the present invention
Figure.
In figure：
1st, rod is encoded；2nd, ventilative housing；3rd, signal input module；4th, USB power source module；5th, cell phone apparatus；6th, cloud is distributed
Platform device；
11st, high definition HDMI signal input units；12nd, coding and compression process chip；13rd, the conversion of USB Large Volume Datas is single
Member；14th, USB changes output interface.
Embodiment
As shown in figures 1 to 6, the implementation method of the high definition HDMI video signal acquiring system described in the embodiment of the present invention, by with
Lower step composition：
(1) coding rod 1, input module 3, USB power source module 4, cell phone apparatus 5 and cloud distribution platform equipment are sequentially connected
6 and system is formed, in the ventilative housing 2 of periphery fixed setting of coding rod 1, coding uses EM28386D with compression process chip 12
Coding with compression process chip 12；Correspondingly, coding rod 1 carry high definition HDMI signal input units 11, at coding and compression
The output end of chip 12 connection USB Large Volume Datas converting unit 13 is managed, the outside of USB Large Volume Datas converting unit 13 therein is matched somebody with somebody
There is USB to change output interface 14；
(2) because high definition HDMI signal data bands are roomy, it live can not access mobile phone and be acquired, therefore, first pass through
HDMI encodes rod, and the HDMI signals of high definition is encoded, carries out H264 compressions by special chip, is turned by high-speed data
Change, be converted into the USB Large Volume Datas of standard, access mobile phone USB interface；
(3) cell phone application software receives usb data and decoded, and shows the vision signal and audio signal collected；If nothing
USB interface data are then converted into Wifi networks by MT7688 modules, passed through by method by mobile phone USB interface input data
Mobile phone WIFI network receives, and cell phone application software carries out decoding the vision signal and audio signal collected after receiving data；
(4) after mobile phone receives audio, video data, image is handled, the letter such as insertion figure layer, word, video, audio
Number, the video signal of a mixing is converted into, cloud platform server is pushed to by mobile phone 4G networks or WIFI network
It is distributed.
Encode rod or using band external audio frequency input module, or using WIFI module.
The above-mentioned description to embodiment is it will be appreciated that and using this for the ease of those skilled in the art
Case technology, person skilled in the art obviously can make various modifications to these examples easily, and described herein one
As principle be applied in other embodiments without by performing creative labour.Therefore, this case is not limited to above example, ability
For the technical staff in domain according to the announcement of this case, the improvement made for this case and modification all should be in the protection domains of this case.
Claims (3)
1. a kind of implementation method of high definition HDMI video signal acquiring system, it is characterised in that comprise the steps of：
(1) arrangement coding rod, input module, USB power source module, cell phone apparatus and cloud distribution platform equipment composition system；
(2) the signal input of input module first passes through HDMI coding rods, and the HDMI signals of high definition is encoded, is entered by chip
Row H264 compresses, and by high speed data conversion, is converted into the USB Large Volume Datas of standard, accesses cell phone apparatus USB interface；
(3) cell phone apparatus APP softwares receive usb data and decoded, and show the vision signal and audio signal collected；If nothing
USB interface data are then converted into Wifi networks by MT7688 modules, passed through by method by mobile phone USB interface input data
Mobile phone WIFI network receives, and cell phone application software carries out decoding the vision signal and audio signal collected after receiving data；
(4) after mobile phone receives audio, video data, image is handled, the signal such as insertion figure layer, word, video, audio, turned
Change the video signal for a mixing into, cloud platform server is pushed to by mobile phone 4G networks or WIFI network and divided
Hair.
2. the implementation method of high definition HDMI video signal acquiring system according to claim 1, it is characterised in that：The volume
Code rod uses band external audio frequency input module.
3. the implementation method of high definition HDMI video signal acquiring system according to claim 1, it is characterised in that：The volume
Code rod or using WIFI module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860692.6A CN107888860A (en) | 2016-09-29 | 2016-09-29 | A kind of implementation method of high definition HDMI video signal acquiring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610860692.6A CN107888860A (en) | 2016-09-29 | 2016-09-29 | A kind of implementation method of high definition HDMI video signal acquiring system |
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| CN107888860A true CN107888860A (en) | 2018-04-06 |
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| CN201610860692.6A Pending CN107888860A (en) | 2016-09-29 | 2016-09-29 | A kind of implementation method of high definition HDMI video signal acquiring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274903A (en) * | 2018-12-03 | 2019-01-25 | 郑州云海信息技术有限公司 | A kind of server and its video signal output circuit shown for screen |
| CN110087010A (en) * | 2019-05-13 | 2019-08-02 | 泰山医学院 | A kind of video coding system |
| CN114513618A (en) * | 2022-04-13 | 2022-05-17 | 新华三智能终端有限公司 | System, method and equipment for collecting high-definition HDMI video signal |
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| CN109274903A (en) * | 2018-12-03 | 2019-01-25 | 郑州云海信息技术有限公司 | A kind of server and its video signal output circuit shown for screen |
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Application publication date: 20180406 |
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