CN201352834Y - High-definition conference system based on digital television HDTV platform - Google Patents
High-definition conference system based on digital television HDTV platform Download PDFInfo
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- CN201352834Y CN201352834Y CN 200820183541 CN200820183541U CN201352834Y CN 201352834 Y CN201352834 Y CN 201352834Y CN 200820183541 CN200820183541 CN 200820183541 CN 200820183541 U CN200820183541 U CN 200820183541U CN 201352834 Y CN201352834 Y CN 201352834Y
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Abstract
The utility model provides a high-definition conference system based on a digital television HDTV platform, which comprises an acquisition module used for collecting high-definition data of the conference scene, a coding module used for coding the high-definition data collected by the acquisition module, and a transmitting module used for transmitting the high-definition data coded by the coding module. The high-definition conference system improves the definition of the video in the videoconference.
Description
Technical field
The utility model relates to the video conferencing technology field, particularly based on the high definition conference system of Digital TV and HDTV (HDTV) platform.
Background technology
Video conference is the virtual meeting that realizes by the network communications technology, make geographically the user that disperses can copolymerization one place, by multiple mode exchange of information such as figure, sound, support people to carry out real time information at a distance and exchange and the application system of sharing, carrying out collaborative work.Video conference greatly facilitates between the cooperation member and exchanges truly, intuitively, for remote teaching and meeting very important effect is arranged also.
Along with development of science and technology, video conference has occupied more and more important position in the commercial affairs contacts, the definition of video, the time delay of transmission, transmission bandwidth, video stabilization and price become the key factor of weighing video conference, wherein the definition that how to improve video is stood in the breach, and becomes the problem that solution is needed in video conference most badly.
The utility model content
The utility model provides the high definition conference system based on Digital TV and HDTV (HDTV) platform, improves the definition of video in the video conference.
The utility model provides a kind of high definition conference system based on digital television HDTV platform, and this system comprises:
Acquisition module is used for conference scenario is carried out the high definition data acquisition;
Coding module, the high definition data that are used for described acquisition module is collected are encoded;
Sending module is used to send the high definition data after described coding module is encoded.
Further, described acquisition module comprises:
The audio frequency submodule is used for the audio frequency of conference scenario is gathered;
The video submodule is used for the video of conference scenario is gathered.
Further, described acquisition module also comprises:
Adjust submodule, be used to adjust angle, the direction that described video submodule is gathered.
Further, described acquisition module is integrated on the high definition camera.
Further, described sending module comprises:
Multiplexing submodule is used for the high definition data multiplex behind the high definition data behind one road coding and other roads coding;
Send submodule, be used to send the high definition data of described multiplexing submodule after multiplexing.
The utility model also provides a kind of high definition conference system based on digital television HDTV platform, and this system comprises:
Receiver module is used for the high definition data behind the received code;
Decoder module, the high definition data that are used for described receiver module is received are decoded;
Display module is used to show the decoded high definition data of described decoder module.
Further, described receiver module comprises:
The chooser module is used for selecting according to demand the high definition data of required reception;
Receive submodule, be used for result, optionally the high definition data behind the received code according to described chooser module.
Further, described decoder module comprises:
The demultiplexing submodule, the high definition data that are used for described receiver module is received are carried out demultiplexing;
The decompression submodule, a road or the multichannel that are used for high definition data that described demultiplexing submodule demultiplexing is come out decompress respectively.
Further, described display module is integrated in the HDTV.
As seen, in the utility model, adopt the high definition data, can improve the definition of video in the video conference as the object that transmits in the video conference.
Description of drawings
Fig. 1 shows the utility model is realized the method for high definition conference system based on Digital Television embodiment;
Fig. 2 shows 8 road high definition conference application architectures;
Fig. 3 shows the internal structure of high definition conference system among Fig. 2;
Fig. 4 shows among Fig. 3 any one tunnel workflow;
Fig. 5 shows the embodiment of the utility model based on the high definition conference system of digital television HDTV platform;
Fig. 6 shows the utility model another embodiment based on the high definition conference system of digital television HDTV platform.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done and to be elaborated.
See also Fig. 1, Fig. 1 shows the embodiment (transmitting terminal) of the utility model based on the high definition conference system of digital television HDTV platform, and this system comprises:
Further, acquisition module 101 can comprise:
Audio frequency submodule 101-1 is used for the audio frequency of conference scenario is gathered;
Video submodule 101-2 is used for the video of conference scenario is gathered.
Further, acquisition module can also comprise:
Adjust submodule, be used to adjust angle, the direction that the video submodule is gathered.Adjust submodule and can also adjust the size of the audio frequency of audio frequency submodule collection.Wherein, acquisition module can be integrated on the high definition camera.
When only needing to send one tunnel high definition data, sending module directly sends the high definition data behind the coding module coding, sends the above high definition data of two-way or two-way if desired, and then sending module 103 can comprise:
Multiplexing submodule 103-1 is used for the high definition data multiplex behind the high definition data behind one road coding and other roads coding;
Send submodule 103-2, be used to send the high definition data of multiplexing submodule after multiplexing.
See also Fig. 2, Fig. 2 shows the utility model another embodiment (receiving terminal) based on the high definition conference system of digital television HDTV platform, and this system comprises:
If only need receive one tunnel high definition data, then the high definition data behind the direct received code of receiver module receive the above high definition data of two-way or two-way if desired, and then receiver module 201 can comprise:
Chooser module 201-1 is used for selecting according to demand the high definition data of required reception;
Receive submodule 201-2, be used for result, optionally the high definition data behind the received code according to the chooser module.
Corresponding, decoder module 202 can comprise:
Demultiplexing submodule 202-1, the high definition data that are used for receiver module is received are carried out demultiplexing;
Decompression submodule 202-2, a road or the multichannel that are used for high definition data that demultiplexing submodule demultiplexing is come out decompress respectively.
In the present embodiment, display module can be integrated in the HDTV.
Adopt the technical scheme of present embodiment, adopt the high definition data, can improve the definition of video in the video conference as the object that transmits in the video conference.
See also Fig. 3, Fig. 3 shows the utility model is realized the method for high definition conference system based on Digital Television embodiment, this method is carried out the collection of high definition data respectively to two or more conference scenario, the high definition transfer of data with one of them conference scenario collection shows in other one or several conference scenario again.
Concrete, for one of them conference scenario, can comprise the steps:
301, conference scenario is carried out the high definition data acquisition.
Concrete, can gather audio frequency, the video of conference scenario by the high definition camera.When gathering, can adjust angle, the direction of high definition camera; According to adjusted angle, direction, the video of conference scenario is gathered.Can also adjust the size of the audio frequency that collects.
For the ease of participant or meeting staff operation, can adjust the high definition camera by remote controller.
302, the high definition data that collect are encoded.
Can adopt multiple coded system, in the present embodiment to the mode of the high definition The data compressed encoding that collects.
303, the high definition data behind the transmission coding.
If only the high definition data of a conference scenario collection need be sent, then can directly the high definition data behind the coding be sent; High definition data with two or more conference scenario collections send if desired, then can will send behind two-way or the high definition data multiplex more than the two-way as required, and concrete can comprise:
With the high definition data multiplex behind the high definition data behind one road coding and other roads coding;
Send the high definition data after multiplexing.
In the process of transmission, can carry out Resource Allocation in Networks and management by built-in watch-dog (MCU).
By corresponding procotol the high definition transfer of data that one of them conference scenario collects is arrived other one or several conference scenario, for other one or several conference scenario, can comprise the steps:
304, the high definition data behind the received code.
Conference scenario can select to show the image data of the other side's meeting, therefore, for this conference scenario, can be according to demand high definition data behind the received code optionally.
305, the high definition data that receive are decoded.
If what receive is the high definition data of a conference scenario of the other side, and the coded system of the high definition The data of this conference scenario collection is compression, then can directly decompress to the high definition data that receive, thus the high definition data that obtain showing.
If what receive is the high definition data of two or more conference scenario of the other side, and the coded system of the high definition The data of these conference scenario collections is compressions, then needs to carry out following operation:
The high definition data that receive are carried out demultiplexing;
A road or multichannel in the high definition data that demultiplexing is come out decompress respectively.
306, show decoded high definition data.
If decoded high definition data are high definition data of a conference scenario of the other side, then can directly show; If the high definition data that decoded high definition data are two or more conference scenario of the other side then can adopt multiple modes such as picture-in-picture, picture out picture to show the conference scenario of the high definition data correspondence behind the multipath decoding simultaneously.
Adopt the technical scheme of present embodiment, adopt the high definition data, can improve the definition of video in the video conference as the object that transmits in the video conference.
See also Fig. 4, Fig. 4 shows 8 road high definition conference application architectures.The method that provides among Fig. 3 can be applied in the multi-path high-definition meeting, is that example describes with 8 the tunnel among Fig. 4, and other multichannel application principle is identical.
Wherein, the high definition camera: the audio frequency and video that are used to finish certain scene are gathered, and can carry out the adjustment of angle direction and audio frequency size by remote controller simultaneously.
HDTV: be used for selecting to show the other side's meeting collection picture.
High definition conference system (in Fig. 2, being called for short high definition conference system) based on digital television HDTV platform: be used for input signal is carried out compressed encoding and transmission, carry out the decompress(ion) output of contracing and show that built-in watch-dog (MCU) can carry out Resource Allocation in Networks and management receiving compressed signal.
Local Area Network: be used for transmission medium as high definition conference system.
See also Fig. 5, Fig. 5 shows the internal structure of high definition conference system among Fig. 4.Wherein, communicate by the high speed serial ports between each module.Eight channel parallels, the CPU that can set in advance in the first passage can directly communicate with local PC.
Being described as follows of each unit among the figure:
CPU: be used for carrying out communication with long-distance user's control end, and each local processing unit of control; H.264, standard resolution/high-res (SD/HD) is decoded; Elementary stream (ES) is packaged into transmitting data stream (TS); TS is carried on the Internet protocol (IP).
Field programmable gate array (FPGA): be used for TS stream multiplex/demultiplex; Process identifier (PID) mapping and filtration; The de-embedding of SD/HD audio frequency; The insertion of TS packing, TS transmission matrix and program specific information (PSI); High-speed synchronous serial (SPI) interface, high speed data transfer (DDR2) interface, differential signal (LVDS) interface are provided.
Multimedia digital signal is handled (MDSP): be used for H.264 encoding and decoding of high-res (HD); (2) H.264 encoding and decoding of the HD of dual code stream or SD; H.264 encoding and decoding (support 1920x1080i, promptly code check is supported scope: 64kbps to 62.5Mbps); Audio-frequency unit function: high-fidelity (High-fidelity), 2 sound channel AAC-LC encoding and decoding, MP2 encoding and decoding, the decoding of MP1 and MP3, Dolby Digital (DolbyDigital) 5.1 decodings etc.
Every road can provide high-definition multimedia (HDMI) interface, IP interface, USB (USB) interface, asynchronous serial (ASI) interface, digital component serial (SDI) interface, serial communication (RS232) interface to link to each other with other external equipments, wherein, the HDMI interface is used for receiving and the output high resolution audio and video signal; The IP interface is used to provide the gigabit networking interface; USB interface is used to provide the interface of storage system configuration information; ASI interface: be used for TS stream output monitoring; The SDI interface can be applicable to SDI input and output environment; The RS232 interface can be used for system debug and configuration.
See also Fig. 6, Fig. 6 shows among Fig. 5 any one tunnel workflow.Wherein,
Browser/server (B/S): control based on WEB2.0, this is the main mode of operation of USB (universal serial bus) (USI), by adopting the B/S framework of web2.0, the user can easily finish the control of equipment between giving directions, and obtains the operating state of equipment from the lively page.
Client/server (C/S): control based on Simple Network Management Protocol (SNMP) local network management
Conversation initialized protocol (SIP), H323: the basic agreement of conference system
Decoding unit (DEC) is according to the signal automatic decoding of input.
Coding unit (ENC) is according to the signal autocoding of input.
Matrix unit (MATRIX) is used for different TS stream is distributed
Internet Protocol Gateway (IP-GW), internet protocol router (IP-ROUTER): the control of IP signal and processing
Multiplexing Unit (MUX): carry out multiplexing and distribution to TS stream.
After the data of high definition camera collection are input to coding module ENC by the HDMI interface, according to corresponding SIP or H.232 protocol packing become IP bag and deliver to the designated destination to show, then export to DEC by the MARTIX module for the IP bag that sends from IP and decode, decoded data are transferred to HDTV by the HDMI interface and show.So just, realized the application of high definition conference.
Concrete, when meeting begins, the every road of conference system platform of two scenes (decide according to hardware performance on supported several roads at most) receives the audio frequency and video input source of high definition camera collection by HDMI, be directly inputted to ENC and carry out encoding compression, the control terminal operator carries out the parameter configuration that different scenes are inserted, and utilizes SIP or H323 agreement to send to and carries out exchanges data in the network.The recipient receives by respective protocol and distributes and by DEC decoded portion output high resolution audio and video signal, show by HDTV.
The technical solution of the utility model can be carried out the application of different modes:
For for the conference system of SPTS SPTS, if the corresponding conference scenario of conference scenario, then the high definition data of high definition camera collection are directly inputted to ENC and carry out encoding compression, need not to carry out multiplexing, and the recipient directly shows.If corresponding conference scenario of a plurality of conference scenario, the high definition data of then every road high definition camera collection, be directly inputted to ENC and carry out encoding compression, need not to carry out multiplexing, by built-in MCU the high definition data of the scene that will receive and show are selected, the recipient can realize that many scenes such as picture-in-picture/picture out picture (PIP/POP) show.
For conference system based on MPTS MPTS, the high definition data of then every road high definition camera collection, be directly inputted to ENC and carry out encoding compression, carry out multiplexing according to needed configuration, by built-in MCU the high definition data of the scene that will receive and show are selected, the recipient can realize PIP/POP) etc. many scenes show.
Adopt the technical scheme of present embodiment, adopt the high definition data, can improve the definition of video in the video conference as the object that transmits in the video conference.
The above only is an embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1, a kind of high definition conference system based on digital television HDTV platform is characterized in that, this system comprises:
Acquisition module is used for conference scenario is carried out the high definition data acquisition;
Coding module, the high definition data that are used for described acquisition module is collected are encoded;
Sending module is used to send the high definition data after described coding module is encoded.
2, system according to claim 1 is characterized in that, described acquisition module comprises:
The audio frequency submodule is used for the audio frequency of conference scenario is gathered;
The video submodule is used for the video of conference scenario is gathered.
3, system according to claim 2 is characterized in that, described acquisition module also comprises:
Adjust submodule, be used to adjust angle, the direction that described video submodule is gathered.
4, system according to claim 1 and 2 is characterized in that, described acquisition module is integrated on the high definition camera.
5, system according to claim 1 is characterized in that, described sending module comprises:
Multiplexing submodule is used for the high definition data multiplex behind the high definition data behind one road coding and other roads coding;
Send submodule, be used to send the high definition data of described multiplexing submodule after multiplexing.
6, a kind of high definition conference system based on digital television HDTV platform is characterized in that, this system comprises:
Receiver module is used for the high definition data behind the received code;
Decoder module, the high definition data that are used for described receiver module is received are decoded;
Display module is used to show the decoded high definition data of described decoder module.
7, system according to claim 6 is characterized in that, described receiver module comprises:
The chooser module is used for selecting according to demand the high definition data of required reception;
Receive submodule, be used for result, optionally the high definition data behind the received code according to described chooser module.
8, system according to claim 6 is characterized in that, described decoder module comprises:
The demultiplexing submodule, the high definition data that are used for described receiver module is received are carried out demultiplexing;
The decompression submodule, a road or the multichannel that are used for high definition data that described demultiplexing submodule demultiplexing is come out decompress respectively.
9, system according to claim 8 is characterized in that, described display module is integrated in the HDTV.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036077A (en) * | 2010-12-31 | 2011-04-27 | 太原理工大学 | Device for transmitting high-definition video in local area network (LAN) |
| CN106027949A (en) * | 2016-07-04 | 2016-10-12 | 安徽天达网络科技有限公司 | Network video conference system |
-
2008
- 2008-12-22 CN CN 200820183541 patent/CN201352834Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036077A (en) * | 2010-12-31 | 2011-04-27 | 太原理工大学 | Device for transmitting high-definition video in local area network (LAN) |
| CN106027949A (en) * | 2016-07-04 | 2016-10-12 | 安徽天达网络科技有限公司 | Network video conference system |
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Address after: 100085 C, block 9, 3rd Street, Beijing, Haidian District, C612 Patentee after: Beijing horizon Technology Co., Ltd. Address before: 100080, room 5026, Shen Chang building, No. 51, Zhichun Road, Beijing, Haidian District Patentee before: Beijing BVCOM Technology Co., Ltd. |
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