CN103391418A - Fusion method based on network video meeting system and broadcasting and television system - Google Patents
Fusion method based on network video meeting system and broadcasting and television system Download PDFInfo
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- CN103391418A CN103391418A CN201310287681XA CN201310287681A CN103391418A CN 103391418 A CN103391418 A CN 103391418A CN 201310287681X A CN201310287681X A CN 201310287681XA CN 201310287681 A CN201310287681 A CN 201310287681A CN 103391418 A CN103391418 A CN 103391418A
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Abstract
The invention provides a fusion method based on a network video meeting system and a broadcasting and television system. A network video meeting is connected in a tandem mode through a network meeting station server, a set top box and a personal computer (PC) client are used as terminals of the network video meeting and added into the network video meeting. In the network video meeting, a host terminal in the PC client controls set top box audios and videos through a network meeting server and a fusion meeting gateway, voice data is converted into a transport stream (TS), document data of the network video meeting is converted into the TS, data flow direction is controlled by controlling an enhanced multimedia router (EMR) device, and finally the TS is issued to the set top box. The fusion method absorbs advantages of the PC network meeting system and the broadcasting and television system, and fusion and unification and seamless combination of network meeting control and broadcasting and television networks and devices are achieved.
Description
Technical field
The present invention relates to Video Conference System and Broadcast and TV system field, particularly with the fusion method of these two kinds of system seamless links.
Background technology
At present conference system hardware video conference system based on the H323 agreement is arranged, based on the netmeeting of PC.
Along with the development of computer network, Video Conference System has been widely used in all trades and professions.But there are two subject matters in network PC conference system:
A problem is the stable bandwidth that depends critically upon internet system.Because the internet system bandwidth is unstable at present, bad during the meeting fashion, the smooth broadcast of audio frequency and video for Video Conference System can produce a very large impact, particularly people's ear is responsive especially to sound, the speech play promptness requires very high, if time delay is too much or the speech data packet loss too much all can affect effect of meeting.
Another problem is the netmeeting based on PC, depends on PC audio-video collection and playback equipment in addition.A lot of times are to link up with voice in meeting, this just needs PC that sound card is arranged, just can hear other people speech by headset or loud speaker, need to there is the microphone could be to voice collecting, coding, just can send data to other users, so just require the PC system to need support voice play and record, need to have earphone and microphone just can carry out voice-frequency telephony.
PC conference system advantage is to carry out audio frequency and video and shares, and Various types of data is shared.
In Broadcast and TV system, general data stream is unidirectional, can not carry out real-time interaction.But program issues by coaxial cable, so can solve the impact that part causes due to bandwidth stability.As long as the set-top box of television set and reception is arranged, not participating in interactive user does not need extra equipment just can receive conferencing information.Need to participate in interactive user and just can carry out real-time interactive with other meeting-place as long as receiving set up box is changed into the interactive machine top box.
Summary of the invention
The object of the present invention is to provide the fusion method of a kind of video conferencing system Network Based and Broadcast and TV system, realize that the fusion of Web conference control and CHINA RFTCOM Co Ltd and equipment is unified.For this reason, the present invention is by the following technical solutions:
The fusion method of video conferencing system Network Based and Broadcast and TV system, is characterized in that,
Described Video Conference System comprises:
1.1, Web conference server in station (being WebService),
Web conference server in station major function is create and start the network teleconference, configuration network video conference parameter, supplies terminal access and obtains the meeting relevant information;
1.2, the Web conference server,
Conference server, as the connector of all conference terminals, sends to the information of each conference terminal in the network teleconference conference terminal of appointment, all conference terminal information in synchronous conferencing;
1.3, the Web conference pc client,
Described Web conference pc client and Web conference server are set up data communication and are contacted, and display conference information, participant's list, collection and playing audio-video data, share and show and share;
1.4, merge the meeting gateway,
Be responsible for data interaction between set-top box and Web conference server, Data Format Transform, conference terminal synchronous;
Described Broadcast and TV system realizes that set-top box joins in meeting, realizes the audio, video data Real-Time Sharing, realizes that EMR equipment, headend equipment receive audio, video data and document data, and by CHINA RFTCOM Co Ltd, be issued to set-top box; Described Broadcast and TV system comprises:
2.1, set-top box,
Be divided into interactive machine top box and receiving set up box, the interactive machine top box is realized the audio, video data Real-Time Sharing, realize to receive the audio, video data and the document data that issue, and receiving set up box can only receiving video data and document data;
2.2, EMR(Enhanced multimedia router media integrated treatment platform) equipment
Mixing audio data and document data that the video data that responsible receiving set up box is uploaded, fusion meeting gateway send, the mixed video data that the mosaic system sends also forward, main broadcaster's video wherein directly sends to headend equipment, the single channel video that enters the mosaic system sends to the mosaic system, and the mixed video data that the mixing audio data that fusion meeting gateway sends and document data, mosaic system send send to headend equipment;
2.3, the mosaic system,
Be responsible for receiving a plurality of single channel video datas that the EMR device forwards is come, according to the split screen that pre-sets, a plurality of single channel videos blended together a road mixed video, resend EMR equipment;
2.4, headend equipment,
Be responsible for receiving audio, video data and document data, and by coaxial cable, be issued to set-top box;
Described fusion method is by the Web conference server in station serial connection network teleconference, described set-top box, pc client are added in the network teleconference as the terminal of the network teleconference, in the network teleconference, host's terminal in pc client is passed through the Web conference server, fusion meeting gateway is controlled set-top box audio and video, speech data is converted to TS stream, the document data of the network teleconference is converted to TS stream, control data flow by controlling EMR equipment, be issued to finally set-top box.
On the basis of adopting technique scheme, the present invention also can adopt following further technical scheme:
When set-top box need add the network teleconference, add in advance the set-top box of attending a meeting in the Web conference server in station, after set-top-box opening, the parameter that first reads network teleconference information and need from the Web conference server in station; Conferencing information comprises Conference ID number, theme, time started, scheduled time and state, and parameter comprises the IP address of merging the meeting gateway, frequency and the program number of audio/video flow;
After set-top box gets the IP address of merging the meeting gateway, connect and merge the meeting gateway and by merging the meeting gateway, be connected to the Web conference server and add the network teleconference.
After set-top box adds the network teleconference, set-top box can give merge the meeting gateway to the Voice ﹠ Video capability report of oneself, merges the meeting gateway and again the Voice ﹠ Video capacity data is passed through the Web conference server sync to the host's terminal in pc client;
Host's terminal in described pc client is passed through the Web conference server, fusion meeting gateway is controlled set-top box audio and video, converts speech data to TS and flows and be issued to set-top box, comprises following flow process:
A, open set-top box audio and control audio stream to flow process, it comprises:
1), host's terminal sends to the Web conference server to the message of opening voice,
2), the Web conference server is transmitted to the message of opening voice to merge the meeting gateway,
3), merge the meeting gateway message of opening voice sent to corresponding set-top box, and tell this set-top box sends to speech data which port that merges the meeting gateway,
4), set-top box the opening of current speech by merging the meeting gateway and the Web conference server returns to host's terminal,
5), set-top box sends to speech data to merge the meeting gateway,, if current only have the voice of this set-top box to open, merge so the meeting gateway and can convert speech data to TS and flow and send to EMR equipment; If there are the voice of a plurality of set-top box to be opened, can voice interface between set-top box, interactive speech data sends by IP network, simultaneously, participates in interactive multi-path voice mixed and convert TS stream to and send to EMR equipment;
B, close the flow process of set-top box audio, it comprises:
1), host's terminal sends to the Web conference server to the message of closing voice,
2), the Web conference server is transmitted to the message of closing voice to merge the meeting gateway,
3), merge the meeting gateway message of closing voice sent to corresponding set-top box,
4), set-top box the closed condition of current speech by merging the meeting gateway and the Web conference server returns to host's terminal,
5), set-top box stops sending speech data;
C, open set-top box video and control the flow process that video data flows to, it comprises:
1), host's terminal opens a video window in split screen,
2), host's terminal sends to the Web conference server to the message of opening video,
3), the Web conference server is transmitted to the message of opening video to merge the meeting gateway,
4), merge the meeting gateway message of opening video sent to corresponding set-top box, and tell this set-top box is delivered to video data transmitting which port of EMR equipment,
5), set-top box sends video data toward EMR equipment;
D, close the flow process of set-top box video, it comprises:
1), pc client closes corresponding video window,
2), host's terminal sends to the Web conference server to the message of closing video,
3), the Web conference server is transmitted to the message of closing video to merge the meeting gateway,
4), merge the meeting gateway message of closing video sent to corresponding set-top box,
5), set-top box stops sending video data;
A wherein road in E, multichannel set-top box video is set to the flow process of main broadcaster's video, and it comprises:
1), according to described, open set-top box video and control flow process that video data flows to and open the video of a plurality of set-top box,
2), host's terminal one of them set-top box is set video as main broadcaster's video, and the message that main broadcaster's video is set is sent to the Web conference server,
3), the Web conference server is transmitted to the message that main broadcaster's video is set to merge the meeting gateway,
4), merge meeting gateway control EMR equipment, the video of Set For Current is sent to headend equipment as main broadcaster's video;
F, other set-top box videos except main broadcaster's video enter the mosaic system and are treated to secondary screen, set in advance receiving port and split screen in the mosaic system, and corresponding one by one, output port is set corresponding with the receiving port of mosaic system in EMR equipment, split screen in host's terminal and mosaic split screen are corresponding one by one, host's terminal to video flowing to control also comprise that dragging video window controls the flow process of the position of set-top box video in the mosaic split screen, this flow process comprises:
1), host's terminal drags opened video window position on its display interface,
2), host's terminal sends video window change in location information to the Web conference server,
3), the Web conference server is transmitted to the video window location message to merge the meeting gateway,
4), merge meeting gateway control EMR equipment the output port that the input video source of respective set-top box is forwarded to after adjustment is realized the variation of split screen position.
Document data is converted to TS flows and the flow process that is issued to set-top box comprises:
G, document data is converted to the flow process of TS stream, it comprises:
1), host's terminal sends to the Web conference server to the shared document data of the network teleconference,
2), the Web conference server give to merge the meeting gateway to the shared document data retransmission,
3), merge the meeting gateway shared document data transaction become TS stream, and send to EMR equipment,
H, document data shield as pair, and the flow process switched of mosaic video,, if current have a document data, so with regard to the display document data, otherwise show mosaic video, and this flow process comprises:
1), merge the meeting gateway and receive that host's terminal is shared or the message of close document
2), when receive when the shared document message, merge meeting gateway control EMR equipment and the document data input source is transparent to the pair screen output port of EMR equipment, when receive for the message of close document the time, merge meeting gateway control EMR equipment the input source of mosaic video be transparent to secondary screen output port.
Described headend equipment is for being modulated into the IP signal modulating equipment of coaxial signal.
Owing to adopting technical scheme of the present invention, the present invention draws PC network conference system and Broadcast and TV system advantage, has realized that the fusion of Web conference control and CHINA RFTCOM Co Ltd and equipment is unified, seamless combination.When the opening network video conference, open the interactive machine top box and join in the network teleconference in each meeting-place, if opened the multichannel set-top box video and wherein a road be set to main broadcaster's video, all interactive machine top boxs all will be watched main broadcaster's video so; If receiving set up box is arranged in meeting-place simultaneously, mosaic video or document video can also be watched in this meeting-place so; If opened simultaneously multi-path voice, all right voice interface of the interactive machine top box between each meeting-place so; Do not participate in interactive interactive machine top box can uppick all participate in interactive voice; If platform drags the video window of non-main broadcaster's video, the video in mosaic that so can the video replacing in different meeting-place is original; Receiving set up box receives only mosaic video or document video, does not receive voice.
Description of drawings
Fig. 1 is the agreement carrying figure of fusion meeting gateway of the present invention and set top box interactive.
Fig. 2 is the agreement carrying figure of fusion meeting gateway control EMR equipment of the present invention.
Fig. 3 is the flow chart of fusion meeting gateway of the present invention and set top box interactive.
Embodiment
The fusion method of video conferencing system Network Based and Broadcast and TV system, is characterized in that,
Described Video Conference System comprises:
1.1, Web conference server in station (being WebService),
Web conference server in station major function is create and start the network teleconference, configuration network video conference parameter, supplies terminal access and obtains the meeting relevant information;
1.2, the Web conference server,
Conference server, as the connector of all conference terminals, sends to the information of each conference terminal in the network teleconference conference terminal of appointment, all conference terminal information in synchronous conferencing;
1.3, the Web conference pc client,
Described Web conference pc client and Web conference server are set up data communication and are contacted, and display conference information, participant's list, collection and playing audio-video data, share and show and share;
1.4, merge the meeting gateway,
Be responsible for data interaction between set-top box and Web conference server, Data Format Transform, conference terminal synchronous;
Described Broadcast and TV system realizes that set-top box joins in meeting, realizes the audio, video data Real-Time Sharing, realizes that EMR equipment, headend equipment receive audio, video data and document data, and by CHINA RFTCOM Co Ltd, be issued to set-top box; Described Broadcast and TV system comprises:
2.1, set-top box,
Be divided into interactive machine top box and receiving set up box, the interactive machine top box is realized the audio, video data Real-Time Sharing, realize to receive the audio, video data and the document data that issue, and receiving set up box can only receiving video data and document data;
2.2, EMR equipment, in the present embodiment, it can adopt EMR3.0 equipment
Mixing audio data and document data that the video data that responsible receiving set up box is uploaded, fusion meeting gateway send, the mixed video data that the mosaic system sends also forward, main broadcaster's video wherein directly sends to headend equipment, the single channel video that enters the mosaic system sends to the mosaic system, and the mixed video data that the mixing audio data that fusion meeting gateway sends and document data, mosaic system send send to headend equipment;
2.3, the mosaic system,
Be responsible for receiving a plurality of single channel video datas that the EMR device forwards is come, according to the split screen that pre-sets, a plurality of single channel videos blended together a road mixed video, resend EMR equipment;
2.4, headend equipment,
Be responsible for receiving audio, video data and document data, and by coaxial cable, be issued to set-top box; Described headend equipment adopts the modulating equipment that the IP signal is modulated into coaxial signal.
Described fusion method is by the Web conference server in station serial connection network teleconference, described set-top box, pc client are added in the network teleconference as the terminal of the network teleconference, in the network teleconference, host's terminal in pc client is passed through the Web conference server, fusion meeting gateway is controlled set-top box audio and video, speech data is converted to TS stream, the document data of the network teleconference is converted to TS stream, control data flow by controlling EMR equipment, be issued to finally set-top box.
When set-top box need add the network teleconference, add in advance the set-top box of attending a meeting in the Web conference server in station, after set-top-box opening, the parameter that first reads network teleconference information and need from the Web conference server in station; Conferencing information comprises Conference ID number, theme, time started, scheduled time and state, and parameter comprises the IP address of merging the meeting gateway, frequency and the program number of audio/video flow;
After set-top box gets the IP address of merging the meeting gateway, connect and merge the meeting gateway and by merging the meeting gateway, be connected to the Web conference server and add the network teleconference.
After set-top box adds the network teleconference, set-top box can give merge the meeting gateway to the Voice ﹠ Video capability report of oneself, merges the meeting gateway and again the Voice ﹠ Video capacity data is passed through the Web conference server sync to the host's terminal in pc client;
Host's terminal in described pc client is passed through the Web conference server, fusion meeting gateway is controlled set-top box audio and video, converts speech data to TS and flows and be issued to set-top box, comprises following flow process:
A, open set-top box audio and control audio stream to flow process, it comprises:
1), host's terminal sends to the Web conference server to the message of opening voice,
2), the Web conference server is transmitted to the message of opening voice to merge the meeting gateway,
3), merge the meeting gateway message of opening voice sent to corresponding set-top box, and tell this set-top box sends to speech data which port that merges the meeting gateway,
4), set-top box the opening of current speech by merging the meeting gateway and the Web conference server returns to host's terminal,
5), set-top box sends to speech data to merge the meeting gateway,, if current only have the voice of this set-top box to open, merge so the meeting gateway and can convert speech data to TS and flow and send to EMR equipment; If there are the voice of a plurality of set-top box to be opened, can voice interface between set-top box, interactive speech data sends by IP network, simultaneously, participates in interactive multi-path voice mixed and convert TS stream to and send to EMR equipment;
B, close the flow process of set-top box audio, it comprises:
1), host's terminal sends to the Web conference server to the message of closing voice,
2), the Web conference server is transmitted to the message of closing voice to merge the meeting gateway,
3), merge the meeting gateway message of closing voice sent to corresponding set-top box,
4), set-top box the closed condition of current speech by merging the meeting gateway and the Web conference server returns to host's terminal,
5), set-top box stops sending speech data;
C, open set-top box video and control the flow process that video data flows to, it comprises:
1), host's terminal opens a video window in split screen,
2), host's terminal sends to the Web conference server to the message of opening video,
3), the Web conference server is transmitted to the message of opening video to merge the meeting gateway,
4), merge the meeting gateway message of opening video sent to corresponding set-top box, and tell this set-top box is delivered to video data transmitting which port of EMR equipment,
5), set-top box sends video data toward EMR equipment;
D, close the flow process of set-top box video, it comprises:
1), pc client closes corresponding video window,
2), host's terminal sends to the Web conference server to the message of closing video,
3), the Web conference server is transmitted to the message of closing video to merge the meeting gateway,
4), merge the meeting gateway message of closing video sent to corresponding set-top box,
5), set-top box stops sending video data;
A wherein road in E, multichannel set-top box video is set to the flow process of main broadcaster's video, and it comprises:
1), according to described, open set-top box video and control flow process that video data flows to and open the video of a plurality of set-top box,
2), host's terminal one of them set-top box is set video as main broadcaster's video, and the message that main broadcaster's video is set is sent to the Web conference server,
3), the Web conference server is transmitted to the message that main broadcaster's video is set to merge the meeting gateway,
4), merge meeting gateway control EMR equipment, the video of Set For Current is sent to headend equipment as main broadcaster's video;
F, other set-top box videos except main broadcaster's video enter the mosaic system and are treated to secondary screen, set in advance receiving port and split screen in the mosaic system, and corresponding one by one, output port is set corresponding with the receiving port of mosaic system in EMR equipment, split screen in host's terminal and mosaic split screen are corresponding one by one, host's terminal to video flowing to control also comprise that dragging video window controls the flow process of the position of set-top box video in the mosaic split screen, this flow process comprises:
1), host's terminal drags opened video window position on its display interface,
2), host's terminal sends video window change in location information to the Web conference server,
3), the Web conference server is transmitted to the video window location message to merge the meeting gateway,
4), merge meeting gateway control EMR equipment the output port that the input video source of respective set-top box is forwarded to after adjustment is realized the variation of split screen position.
Document data is converted to TS flows and the flow process that is issued to set-top box comprises:
G, document data is converted to the flow process of TS stream, it comprises:
1), host's terminal sends to the Web conference server to the shared document data of the network teleconference,
2), the Web conference server give to merge the meeting gateway to the shared document data retransmission,
3), merge the meeting gateway shared document data transaction become TS stream, and send to EMR equipment,
H, document data shield as pair, and the flow process switched of mosaic video,, if current have a document data, so with regard to the display document data, otherwise show mosaic video, and this flow process comprises:
1), merge the meeting gateway and receive that host's terminal is shared or the message of close document
2), when receive when the shared document message, merge meeting gateway control EMR equipment and the document data input source is transparent to the pair screen output port of EMR equipment, when receive for the message of close document the time, merge meeting gateway control EMR equipment the input source of mosaic video be transparent to secondary screen output port.
2, system interface content
2.1, the interface carrier:
With reference to Fig. 1, communicating by letter between the fusion meeting gateway of Web conference and set-top box used ICP/IP protocol and carried as bottom, and application layer realizes exchanges data by the XML agreement.
With reference to Fig. 2, the fusion meeting gateway of Web conference carries as bottom with the udp protocol of communicating by letter between EMR equipment, and application layer realizes exchanges data by snmp protocol.
2.2, communication process
, with reference to Fig. 3, be fusion meeting gateway and the direct interaction flow of set-top box of Web conference.
2.3, merge meeting gateway and set-top box message definition
2.3.1, protocol header
2.3.1.1, set-top box
2.3.1.2, merge the meeting gateway
2.3.2 connect
2.3.2.1, set-top box
2.3.2.2, merge the meeting gateway
2.3.2.2.1, allow
2.3.2.2.2, the refusal
2.3.3, set-top box revises the audio frequency and video ability
2.3.3.1, set-top box
2.3.4, set-top box revises the audio frequency and video state
2.3.4.1, set-top box
2.3.5, broadcast audio
2.3.5.1, merge the meeting gateway
2.3.5.1.1 go on the air
2.3.5.1.2 go off the air
2.3.6, broadcasting video
2.3.6.1, merge the meeting gateway
2.3.6.1.1, go on the air
2.3.6.1.2, go off the air
2.3.7, force the set-top box defection
2.3.7.1, merge the meeting gateway
2.3.8, send out message to set-top box
2.3.8.1, merge the meeting gateway
2.3.9, close connection
Claims (5)
1. the fusion method of video conferencing system Network Based and Broadcast and TV system, is characterized in that,
Described Video Conference System comprises:
1.1, the Web conference server in station,
Web conference server in station major function is create and start the network teleconference, configuration network video conference parameter, supplies terminal access and obtains the meeting relevant information;
1.2, the Web conference server,
Conference server, as the connector of all conference terminals, sends to the information of each conference terminal in the network teleconference conference terminal of appointment, all conference terminal information in synchronous conferencing;
1.3, the Web conference pc client,
Described Web conference pc client and Web conference server are set up data communication and are contacted, and display conference information, participant's list, collection and playing audio-video data, share and show and share;
1.4, merge the meeting gateway,
Be responsible for data interaction between set-top box and Web conference server, Data Format Transform, conference terminal synchronous;
Described Broadcast and TV system realizes that set-top box joins in meeting, realizes the audio, video data Real-Time Sharing, realizes that EMR equipment, headend equipment receive audio, video data and document data, and by CHINA RFTCOM Co Ltd, be issued to set-top box; Described Broadcast and TV system comprises:
2.1, set-top box,
Be divided into interactive machine top box and receiving set up box, the interactive machine top box is realized the audio, video data Real-Time Sharing, realize to receive the audio, video data and the document data that issue, and receiving set up box can only receiving video data and document data;
2.2, EMR equipment,
Mixing audio data and document data that the video data that responsible receiving set up box is uploaded, fusion meeting gateway send, the mixed video data that the mosaic system sends also forward, main broadcaster's video wherein directly sends to headend equipment, the single channel video that enters the mosaic system sends to the mosaic system, and the mixed video data that the mixing audio data that fusion meeting gateway sends and document data, mosaic system send send to headend equipment;
2.3, the mosaic system,
Be responsible for receiving a plurality of single channel video datas that the EMR device forwards is come, according to the split screen that pre-sets, a plurality of single channel videos blended together a road mixed video, resend EMR equipment;
2.4, headend equipment,
Be responsible for receiving audio, video data and document data, and by coaxial cable, be issued to set-top box;
Described fusion method is by the Web conference server in station serial connection network teleconference, described set-top box, pc client are added in the network teleconference as the terminal of the network teleconference, in the network teleconference, host's terminal in pc client is passed through the Web conference server, fusion meeting gateway is controlled set-top box audio and video, speech data is converted to TS stream, the document data of the network teleconference is converted to TS stream, control data flow by controlling EMR equipment, be issued to finally set-top box.
2. the fusion method of video conferencing system Network Based as claimed in claim 1 and Broadcast and TV system, is characterized in that when set-top box need add the network teleconference,
Add in advance the set-top box of attending a meeting in the Web conference server in station, after set-top-box opening, the parameter that first reads network teleconference information and need from the Web conference server in station; Conferencing information comprises Conference ID number, theme, time started, scheduled time and state, and parameter comprises the IP address of merging the meeting gateway, frequency and the program number of audio/video flow;
After set-top box gets the IP address of merging the meeting gateway, connect and merge the meeting gateway and by merging the meeting gateway, be connected to the Web conference server and add the network teleconference.
3. the fusion method of video conferencing system Network Based as claimed in claim 1 and Broadcast and TV system, it is characterized in that after set-top box adds the network teleconference, set-top box can give merge the meeting gateway to the Voice ﹠ Video capability report of oneself, merges the meeting gateway and again the Voice ﹠ Video capacity data is passed through the Web conference server sync to the host's terminal in pc client;
Host's terminal in described pc client is passed through the Web conference server, fusion meeting gateway is controlled set-top box audio and video, converts speech data to TS and flows and be issued to set-top box, comprises following flow process:
A, open set-top box audio and control audio stream to flow process, it comprises:
1), host's terminal sends to the Web conference server to the message of opening voice,
2), the Web conference server is transmitted to the message of opening voice to merge the meeting gateway,
3), merge the meeting gateway message of opening voice sent to corresponding set-top box, and tell this set-top box sends to speech data which port that merges the meeting gateway,
4), set-top box the opening of current speech by merging the meeting gateway and the Web conference server returns to host's terminal,
5), set-top box sends to speech data to merge the meeting gateway,, if current only have the voice of this set-top box to open, merge so the meeting gateway and can convert speech data to TS and flow and send to EMR equipment; If there are the voice of a plurality of set-top box to be opened, can voice interface between set-top box, interactive speech data sends by IP network, simultaneously, participates in interactive multi-path voice mixed and convert TS stream to and send to EMR equipment;
B, close the flow process of set-top box audio, it comprises:
1), host's terminal sends to the Web conference server to the message of closing voice,
2), the Web conference server is transmitted to the message of closing voice to merge the meeting gateway,
3), merge the meeting gateway message of closing voice sent to corresponding set-top box,
4), set-top box the closed condition of current speech by merging the meeting gateway and the Web conference server returns to host's terminal,
5), set-top box stops sending speech data;
C, open set-top box video and control the flow process that video data flows to, it comprises:
1), host's terminal opens a video window in split screen,
2), host's terminal sends to the Web conference server to the message of opening video,
3), the Web conference server is transmitted to the message of opening video to merge the meeting gateway,
4), merge the meeting gateway message of opening video sent to corresponding set-top box, and tell this set-top box is delivered to video data transmitting which port of EMR equipment,
5), set-top box sends video data toward EMR equipment;
D, close the flow process of set-top box video, it comprises:
1), pc client closes corresponding video window,
2), host's terminal sends to the Web conference server to the message of closing video,
3), the Web conference server is transmitted to the message of closing video to merge the meeting gateway,
4), merge the meeting gateway message of closing video sent to corresponding set-top box,
5), set-top box stops sending video data;
A wherein road in E, multichannel set-top box video is set to the flow process of main broadcaster's video, and it comprises:
1), according to described, open set-top box video and control flow process that video data flows to and open the video of a plurality of set-top box,
2), host's terminal one of them set-top box is set video as main broadcaster's video, and the message that main broadcaster's video is set is sent to the Web conference server,
3), the Web conference server is transmitted to the message that main broadcaster's video is set to merge the meeting gateway,
4), merge meeting gateway control EMR equipment, the video of Set For Current is sent to headend equipment as main broadcaster's video;
F, other set-top box videos except main broadcaster's video enter the mosaic system and are treated to secondary screen, set in advance receiving port and split screen in the mosaic system, and corresponding one by one, output port is set corresponding with the receiving port of mosaic system in EMR equipment, split screen in host's terminal and mosaic split screen are corresponding one by one, host's terminal to video flowing to control also comprise that dragging video window controls the flow process of the position of set-top box video in the mosaic split screen, this flow process comprises:
1), host's terminal drags opened video window position on its display interface,
2), host's terminal sends video window change in location information to the Web conference server,
3), the Web conference server is transmitted to the video window location message to merge the meeting gateway,
4), merge meeting gateway control EMR equipment the output port that the input video source of respective set-top box is forwarded to after adjustment is realized the variation of split screen position.
4. the fusion method of video conferencing system Network Based as claimed in claim 1 and Broadcast and TV system is characterized in that document data is converted to that TS flows and the flow process that is issued to set-top box comprises:
G, document data is converted to the flow process of TS stream, it comprises:
1), host's terminal sends to the Web conference server to the shared document data of the network teleconference,
2), the Web conference server give to merge the meeting gateway to the shared document data retransmission,
3), merge the meeting gateway shared document data transaction become TS stream, and send to EMR equipment,
H, document data shield as pair, and the flow process switched of mosaic video,, if current have a document data, so with regard to the display document data, otherwise show mosaic video, and this flow process comprises:
1), merge the meeting gateway and receive that host's terminal is shared or the message of close document
2), when receive when the shared document message, merge meeting gateway control EMR equipment and the document data input source is transparent to the pair screen output port of EMR equipment, when receive for the message of close document the time, merge meeting gateway control EMR equipment the input source of mosaic video be transparent to secondary screen output port.
5. the fusion method of video conferencing system Network Based as claimed in claim 1 and Broadcast and TV system, is characterized in that described headend equipment is for being modulated into the IP signal modulating equipment of coaxial signal.
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