CN103024448A - IPQAM (internet protocol quadrature amplitude modulation)-based multi-screen interacting method and IPQAM-based video terminal equipment - Google Patents
IPQAM (internet protocol quadrature amplitude modulation)-based multi-screen interacting method and IPQAM-based video terminal equipment Download PDFInfo
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- CN103024448A CN103024448A CN2012105719286A CN201210571928A CN103024448A CN 103024448 A CN103024448 A CN 103024448A CN 2012105719286 A CN2012105719286 A CN 2012105719286A CN 201210571928 A CN201210571928 A CN 201210571928A CN 103024448 A CN103024448 A CN 103024448A
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Abstract
The invention discloses an IPQAM (internet protocol quadrature amplitude modulation)-based multi-screen interacting method and IPQAM-based video terminal equipment. The method includes the steps: enabling a video control module to receive a broadcast request file or channel identification information selected by a user, and sending the same to signal source equipment to enable the signal source equipment to return corresponding radio-frequency signals by the aid of IPQAM equipment; modulating and demodulating the radio-frequency signals, and sending the demodulated video radio-frequency signals to a streaming media generation module; using the streaming media generation module for processing the video radio-frequency signals so as to generate a streaming media file and sending the streaming media file to a streaming media server; and using the streaming media server for providing streaming media service according to requests of multiple multimedia playing equipment in a local area network. The IPQAM-based multi-screen interacting method and the IPQAM-based video terminal equipment can take full advantages of a natural broadcast transmission mode and high bandwidth in an existing HFC (hybrid fiber-coaxial) network, and do not occupy data transmission bandwidth while high-definition video transmission is achieved, and broadcast and television network existing equipment and network resource investment are protected to the utmost extent.
Description
Technical field
The present invention relates to the video playback field, relate in particular to a kind of multi-screen interaction method based on IPQAM and video frequency terminal apparatus.
Background technology
Mainstream technology live, order program service that IPQAM is that present Broadcast and TV system provides, set-top box is reduced to the analog or digital TV signal after receiving the IPQAM data flow, outputs in the television equipment and plays.The shortcoming of this scheme mainly is to only have an equipment can play the TV programme that restores from IPQAM, can't utilize the miscellaneous equipments such as computer, portable terminal to watch program.
In the Broadcast and TV system that has carried out bidirectional network reconstruction, the multi-screen interactive scheme utilizes data channel to realize video request program, and a plurality of smart machines in the family are directly accessed the video data among the Internet.The data bandwidth of broadcasting and TV hfc plant is substantially at 2-8Mbps, and this scheme need to take data bandwidth, and then affects user's data service, and is particularly especially large on the impact of data business during the program request HD video.
Summary of the invention
When the technical problem to be solved in the present invention is to access simultaneously video data among the Internet for a plurality of smart machines in the prior art, can take data bandwidth affects the defective of user's data service, a kind of natural broadcasting transmitting mode and high bandwidth in the existing hfc plant that take full advantage of is provided, realize simultaneously watching video data of a plurality of smart machines, and do not take multi-screen interaction method and the video frequency terminal apparatus based on IPQAM of data transfer bandwidth.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of multi-screen interaction method based on IPQAM is provided, may further comprise the steps:
S1, video control module receive program request file or the channel identication information of user selection, and send to signal source equipment, so that described signal source equipment returns corresponding radiofrequency signal by IPQAM equipment;
S2, coaxial cable modem receive described radiofrequency signal and it are carried out modulation /demodulation, and the video radiofrequency signal that demodulates is sent to the Streaming Media generation module;
S3, described Streaming Media generation module are processed the generation files in stream media with described video radiofrequency signal, and described files in stream media are sent to streaming media server;
S4, described streaming media server provide streaming media service according to the request of a plurality of multimedia play equipments in the local area network (LAN).
In the method for the present invention, during video request program, when the files in stream media of described Streaming Media generation module generation took buffering area, described video control module sent the signal that suspends transmission to described signal source equipment.
In the method for the present invention, during net cast, described Streaming Media generation module upgrades the data in the buffering area automatically, so that up-to-date data that receive always in the buffering area.
The present invention solves another technical scheme that its technical problem adopts:
A kind of video frequency terminal apparatus based on IPQAM is provided, with coaxial cable gateway equipment connection, described coaxial cable gateway equipment comprises coaxial cable modem and radio network gateway, and described radio network gateway connects a plurality of multimedia play equipments, and this video frequency terminal apparatus comprises:
The video control module, be used for receiving program request file or the channel identication information of user selection, and send to signal source equipment, so that described signal source equipment returns corresponding radiofrequency signal by coaxial cable to described coaxial cable modem by IPQAM equipment;
Described Streaming Media generation module is used for the video radiofrequency signal that described coaxial cable modem demodulates is processed the generation files in stream media, and described files in stream media is sent to streaming media server;
Described streaming media server is used for providing streaming media service according to the request of a plurality of multimedia play equipments in the local area network (LAN).
In the video frequency terminal apparatus of the present invention, when the files in stream media of described Streaming Media generation module generation took buffering area, described video control module also was used for sending the signal that suspends transmission to described signal source equipment.
In the video frequency terminal apparatus of the present invention, during net cast, described Streaming Media generation module also is used for automatically upgrading the data of buffering area, so that up-to-date data that receive always in the buffering area.
The present invention solves the 3rd technical scheme that its technical problem adopts:
A kind of integrated video frequency terminal apparatus based on IPQAM is provided, comprise coaxial cable gateway equipment and connected such as each described video frequency terminal apparatus among the claim 4-9, described coaxial cable gateway equipment comprises coaxial cable modem and radio network gateway, and described radio network gateway connects a plurality of multimedia play equipments.
In the integrated video frequency terminal apparatus of the present invention, described radio network gateway is used for transmitting the interactive information between described a plurality of multimedia play equipment and described streaming media server or the described video control module, perhaps directly links to each other with the Internet.
In the integrated video frequency terminal apparatus of the present invention, described multimedia play equipment is intelligent television, PC, smart mobile phone, panel computer or high definition player.
In the integrated video frequency terminal apparatus of the present invention, described radio network gateway is supported the access way of Ethernet, wireless wifi, and supports power line or based on the mutual contact mode of G.hn.
The beneficial effect that the present invention produces is: the present invention is by arranging Streaming Media generation module and streaming media server at the user place, vision signal is generated files in stream media and be buffered in the streaming media server according to the request of a plurality of multimedia play equipments, can with the content of originally watching at a TV, expand to easily on a plurality of smart machines and play by streaming media server; The present invention can take full advantage of natural broadcasting transmitting mode and high bandwidth in the existing hfc plant, when realizing the HD video transmission, do not take data transfer bandwidth, and the data bandwidth that the broadcasting and TV hfc plant is provided does not require; On the system, the equipment such as original local side signal source, IPQAM and the hfc plant of finishing bidirectional network reconstruction remain unchanged, and can protect to greatest extent the investment of CHINA RFTCOM Co Ltd existing equipment and Internet resources.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is that the embodiment of the invention is based on the flow chart of the multi-screen interaction method of IPQAM;
Fig. 2 is the structural representation that embodiment of the invention video frequency terminal apparatus separates with coaxial home gateway;
Fig. 3 is the system that comprises a plurality of equipment in equipment, hfc plant, video frequency terminal apparatus and the home networks such as local side signal source, IPQAM in the complete use scenes of the embodiment of the invention;
Fig. 4 is the structural representation of the integrated video frequency terminal apparatus of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the invention is utilized the existing HFC(HybridFiber-Coaxial of broadcasting and TV, hybrid fiber coax) network and equipment, streaming media service is combined with the present popular home network interconnection interworking technologies such as DLNA, realize that the multi-screen HD video in the home network is interactive.In addition, because the transmission of HD video does not take the data transmission channel in the hfc plant, the broadcasting and TV investment be can effectively protect, and convenience and the view reception effect of user's watching video program increased.The embodiment of the invention in being applied to home network, can also be applied in a plurality of other environment or the scene, such as enterprise's office, hotel or intelligent residential district etc.
As shown in Figure 1, the embodiment of the invention may further comprise the steps based on the multi-screen interaction method of IPQAM:
S1, video control module receive program request file or the channel identication information of user selection, and send to signal source equipment, so that signal source equipment returns corresponding radiofrequency signal by IPQAM equipment;
S2, coaxial cable modem received RF signal also carry out modulation /demodulation to it, and the video radiofrequency signal that demodulates is sent to the Streaming Media generation module; Namely take full advantage of natural broadcasting transmitting mode and high bandwidth in the existing hfc plant, when realizing the HD video transmission, do not take data transfer bandwidth, and the data bandwidth that the broadcasting and TV hfc plant is provided does not require.
S3, Streaming Media generation module are processed the generation files in stream media with the video radiofrequency signal, and files in stream media is sent to streaming media server;
S4, streaming media server provide streaming media service according to the request of a plurality of multimedia play equipments in the home network.Can with the content of originally watching at a TV, expand to easily on a plurality of smart machines and play by streaming media server.
In an embodiment of the present invention, during video request program, when the files in stream media of Streaming Media generation module generation took buffering area, the video control module sent the signal that suspends transmission to signal source equipment.
In an embodiment of the present invention, during net cast, the Streaming Media generation module upgrades the data in the buffering area automatically, so that up-to-date data that receive always in the buffering area, and need not the intervention of video control module.
As shown in Figure 2, said method is applied to family as example, the embodiment of the invention is based on the video frequency terminal apparatus of IPQAM, with coaxial cable gateway equipment connection, coaxial cable gateway equipment is coaxial family gateway equipment, coaxial family gateway equipment comprises coaxial cable modem 106 and wireless home gateway 107, wireless home gateway 107 connects a plurality of multimedia play equipments (connecting or wireless connections by ethernet line is arranged), wherein signal source equipment 101 and IPQAM equipment 102 generally are distributed in the machine room of Video service provider, and video frequency terminal apparatus then is deployed in the user family.
This video frequency terminal apparatus comprises:
Video control module 104, be used for receiving program request file or the channel identication information (being the IP control signal) of user selection, and send to signal source equipment 101, can control signal be transmitted to signal source equipment 101 by coaxial cable modem 106 and IPQAM equipment 102, so that signal source equipment 101 returns corresponding radiofrequency signal by coaxial cable to coaxial cable modem 106 again by IPQAM equipment 102; Video control module 104 is mainly controlled Streaming Media generation module 103 and streaming media server 105 according to user's order, and mutual by coax modem 106 and signal source equipment 101, sends the response of service request and processing signals source device 101.The hfc plant that the realization of the embodiment of the invention can not change the equipment such as the signal source, IPQAM of existing local side and finish bidirectional network reconstruction is protected the investment of CHINA RFTCOM Co Ltd existing equipment and Internet resources to greatest extent.
Streaming Media generation module 103 is used for the video radiofrequency signal that coaxial cable modem 106 demodulates is processed the generation files in stream media, and files in stream media is sent to streaming media server 105; In embodiments of the present invention, 103 pairs of video radiofrequency signals of Streaming Media generation module are processed specifically, the flag information that transmits according to transport stream carries out demultiplexing to the transport stream that receives, then by descrambling information program stream is carried out descrambling, TS flow point behind the descrambling do not decoded to be reduced into packet and to export, and finally forms files in stream media.
Streaming media server 105 is used for providing streaming media service according to the request of a plurality of multimedia play equipments in the home network.The major function of streaming media server 105 is with streaming protocol (RTP/RTSP, MMS, RTMP etc.) the video file burst to be transferred to client, watches online for the user; Also can receive live video stream from video acquisition, compressed software, again with the live client of giving of streaming protocol.
In embodiments of the present invention, when the files in stream media of Streaming Media generation module 103 generations took buffering area, video control module 104 also was used for sending the signal that suspends transmission to signal source equipment.
During net cast, Streaming Media generation module 103 also is used for automatically upgrading the data of buffering area, so that up-to-date data that receive always in the buffering area.
As shown in Figure 3 and Figure 4, the embodiment of the invention is based on the integrated video frequency terminal apparatus of IPQAM, comprise the video frequency terminal apparatus (being not repeated herein) that coaxial cable gateway equipment and connected as mentioned embodiment describe, with the example that is applied as in the family, coaxial cable gateway equipment is coaxial family gateway equipment, comprise coaxial cable modem 106 and wireless home gateway 107, wireless home gateway 107 connects a plurality of multimedia play equipments.
In one embodiment of the invention, wireless home gateway 107 is used for transmitting the interactive information between a plurality of multimedia play equipments and streaming media server or the video control module, perhaps directly links to each other with the Internet.
In one embodiment of the invention, multimedia play equipment is intelligent television, PC, smart mobile phone, panel computer or high definition player etc., but is not limited to this.Multimedia play equipment can link to each other with streaming media server 105 by similar home network interconnection intercommunication standards such as DLNA/UPNP, and multi-screen interactive is realized on Intelligent portable ground more.
In one embodiment of the invention, wireless home gateway 107 is supported the access way of Ethernets, wireless wifi, and supports power line or based on the mutual contact mode of G.hn.
The present invention can take full advantage of natural broadcasting transmitting mode and high bandwidth in the existing hfc plant, when realizing the HD video transmission, do not take data transfer bandwidth, and the data bandwidth that the broadcasting and TV hfc plant is provided does not require; Can with the content of originally watching at a TV, expand to easily on a plurality of smart machines and play by streaming media server; On the system, the equipment such as original local side signal source, IPQAM and the hfc plant of finishing bidirectional network reconstruction remain unchanged, and can protect to greatest extent the investment of CHINA RFTCOM Co Ltd existing equipment and Internet resources.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. the multi-screen interaction method based on IPQAM is characterized in that, may further comprise the steps:
S1, video control module receive program request file or the channel identication information of user selection, and send to signal source equipment, so that described signal source equipment returns corresponding radiofrequency signal by IPQAM equipment;
S2, coaxial cable modem receive described radiofrequency signal and it are carried out modulation /demodulation, and the video radiofrequency signal that demodulates is sent to the Streaming Media generation module;
S3, described Streaming Media generation module are processed the generation files in stream media with described video radiofrequency signal, and described files in stream media are sent to streaming media server;
S4, described streaming media server provide streaming media service according to the request of a plurality of multimedia play equipments in the local area network (LAN).
2. method according to claim 1 is characterized in that, during video request program, when the files in stream media of described Streaming Media generation module generation took buffering area, described video control module sent the signal that suspends transmission to described signal source equipment.
3. method according to claim 1 is characterized in that, during net cast, described Streaming Media generation module upgrades the data in the buffering area automatically, so that up-to-date data that receive always in the buffering area.
4. video frequency terminal apparatus based on IPQAM, with coaxial cable gateway equipment connection, described coaxial cable gateway equipment comprises coaxial cable modem and radio network gateway, and described radio network gateway connects a plurality of multimedia play equipments, it is characterized in that this video frequency terminal apparatus comprises:
The video control module, be used for receiving program request file or the channel identication information of user selection, and send to signal source equipment, so that described signal source equipment returns corresponding radiofrequency signal by coaxial cable to described coaxial cable modem by IPQAM equipment;
Described Streaming Media generation module is used for the video radiofrequency signal that described coaxial cable modem demodulates is processed the generation files in stream media, and described files in stream media is sent to streaming media server;
Described streaming media server is used for providing streaming media service according to the request of a plurality of multimedia play equipments in the local area network (LAN).
5. video frequency terminal apparatus according to claim 4 is characterized in that, when the files in stream media of described Streaming Media generation module generation took buffering area, described video control module also was used for sending the signal that suspends transmission to described signal source equipment.
6. video frequency terminal apparatus according to claim 4 is characterized in that, during net cast, described Streaming Media generation module also is used for automatically upgrading the data of buffering area, so that up-to-date data that receive always in the buffering area.
7. integrated video frequency terminal apparatus based on IPQAM, it is characterized in that, comprise coaxial cable gateway equipment and connected such as each described video frequency terminal apparatus among the claim 4-9, described coaxial cable gateway equipment comprises coaxial cable modem and radio network gateway, and described radio network gateway connects a plurality of multimedia play equipments.
8. integrated video frequency terminal apparatus according to claim 7, it is characterized in that, described radio network gateway is used for transmitting the interactive information between described a plurality of multimedia play equipment and described streaming media server or the described video control module, perhaps directly links to each other with the Internet.
9. integrated video frequency terminal apparatus according to claim 7 is characterized in that, described multimedia play equipment is intelligent television, PC, smart mobile phone, panel computer or high definition player.
10. integrated video frequency terminal apparatus according to claim 9 is characterized in that, described radio network gateway is supported the access way of Ethernet, wireless wifi, and supports power line or based on the mutual contact mode of G.hn.
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Application publication date: 20130403 |