CN101902389A - Method for downloading multimedia data based on network - Google Patents
Method for downloading multimedia data based on network Download PDFInfo
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- CN101902389A CN101902389A CN2009100859334A CN200910085933A CN101902389A CN 101902389 A CN101902389 A CN 101902389A CN 2009100859334 A CN2009100859334 A CN 2009100859334A CN 200910085933 A CN200910085933 A CN 200910085933A CN 101902389 A CN101902389 A CN 101902389A
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Abstract
The invention provides a method for transmitting multimedia data based on a network. The network comprises a plurality of set top boxes (STB), an audio and video output device, at least one encapsulating server and at least one system management server, wherein the audio and video output device is respectively connected with the STBs; and P2P (Peer-to-Peer) circuit modules are respectively arranged in the STBs. The method comprises the following steps of: partitioning and encapsulating data by the encapsulating server; grouping the STBs by the system management server so that the STBs in the same group are associated; and uploading and/or downloading the data among the STBs according to association by the P2P circuit modules in the STBs. By adopting a P2P network transmission working mode, the STBs accessed into a P2P network can mutually transmit the data; and the more the STBs accessed into the network are, the faster the downloading speed of a user terminal is, thereby effectively solving the problem of service quality reduction along with the increase of user quantity, which is caused by carrying out multimedia data transmission in a C/S (Client/Server) working mode.
Description
Technical field
The present invention relates to multimedia technology field, relate in particular to based on network method for downloading multimedia data.
Background technology
Set-top box makes such as video display terminals such as TVs and has inserted the Internet, therefore, the user also can enjoy on the video display terminals such as TV with the Internet on identical multimedia resource, that is to say, pass through set-top box, the user can enjoy and hold same multimedia service at PC (Personal Computer, personal computer).
Present set-top box mostly is the (Client/Server based on C/S, client/server) terminal of mode development, it is the C/S set-top box, data-transmission mode as shown in Figure 1 between itself and the operator, Fig. 1 shows C/S mode of operation schematic diagram in the prior art, as can be seen from the figure, in this pattern, server is with mode and each client of clean culture, it is set-top box 1, set-top box 2, set-top box 3, set-top box 4, ..., set-top box 2N, set-top box 2N+1 connects, set-top box is sent service request, and server selects suitable data content to send to corresponding set-top box, finishes service conversation one time by the mode of asking and reply.The shortcoming of this mode of operation is that the ability and the output bandwidth of server have certain limit.Along with the increase of the set-top box quantity of request server, the average bandwidth that each set-top box can be enjoyed will reduce gradually, and for using the user of set-top box, the response speed of server can significantly descend, even can't obtain service.Therefore, if in peak period, when watching content of multimedia, can not well satisfy client's demand based on the multi-medium data transmission of C/S model by video display terminals such as TVs.
Summary of the invention
Technical problem to be solved by this invention is: a kind of based on network multimedia data transmission method is provided, effectively solved adopt the C/S mode of operation carry out that the multi-medium data transmission is produced, cause the problem that service quality descends with the number of users increase.
In order to address the above problem, the invention provides a kind of based on network method for downloading multimedia data, described network comprises a plurality of set-top box, the audio frequency and video output device that is connected with described set-top box respectively, at least one package server, at least one system management server, be respectively arranged with the P2P circuit module in described a plurality of set-top box, described method comprises the steps: that carrying out data by package server cuts apart, encapsulates; By described system management server described set-top box is divided into groups, making on the same group, set-top box mutual is associated; P2P circuit module in the set-top box carries out data upload and/or download according to described being associated between described a plurality of set-top box.
Preferably, describedly carry out data by package server and cut apart, encapsulate and further comprise the steps: described data are divided into a plurality of packets; Be followed successively by the continuous sequence number of each packet marking, and give described each packet marking timestamp according to reproduction time.
Preferably, describedly by system management server described set-top box is divided into groups, the request authentication information that set-top box mutual on the same group is associated specifically comprise the steps: the P2P circuit module that receives described set-top box to send determines to add each set-top box of network; Be divided into one group principle according to the set-top box that will upload or download same program or channel, described each set-top box is divided into groups; According to shortest path and optimum bandwidth principle, be set-top box selection connection tabulation on the same group, and according to described connection tabulation, making on the same group, set-top box mutual is associated.
Preferably, P2P circuit module in the described set-top box carries out data upload and/or downloads further comprising the steps: to send request authentication information by the Internet to described system management server according to described being associated between described a plurality of set-top box, so that described set-top box becomes the node of described network; According to described connection tabulation, obtain the described association between the set-top box on the same group; According to described association, carrying out uploading and/or downloading of packet on the same group between the set-top box; Packet is reverted to the data file of finishing according to described sequence number, and control decoding speed to realize level and smooth decoding by described timestamp.
In the present invention is based on the method for downloading multimedia data of network, by adopting P2P Network Transmission mode of operation, make the set-top box that inserts in the P2P network can carry out the transmission of data each other, and, the set-top box quantity of access network is many more, the speed of download of user terminal is fast more, effectively solved adopt the C/S mode of operation carry out that the multi-medium data transmission is produced, cause the problem that service quality descends with the number of users increase.
Description of drawings
Fig. 1 is a C/S mode of operation schematic diagram in the prior art;
Fig. 2 is the structure diagram of P2P network involved in the present invention;
Fig. 3 is the flow chart of steps that the present invention is based on the method for downloading multimedia data of network;
Fig. 4 is that package server carries out the concrete steps flow chart that embodiment is cut apart, encapsulated to data;
Fig. 5 is divided into groups to described set-top box by system management server, makes the inter-related flow chart of steps of set-top box on the same group;
Fig. 6 is the described flow chart of steps of carrying out data upload and/or download between described a plurality of set-top box that is associated in of P2P circuit module foundation in the set-top box;
Fig. 7 is under the P2P downloading mode, and data file is divided into the schematic diagram of packet;
Fig. 8 is under the P2P downloading mode, and the data packet recovery of cutting apart is the schematic diagram of complete data file;
Fig. 9 is under the P2P downloading mode, the present invention is based on the downloading process schematic diagram of the multi-media data downloading system of network;
Figure 10 is the structural representation that adopts the video system of multimedia data transmission method of the present invention;
Figure 11 is the flow chart of steps that the system of video system shown in Figure 10 once downloads.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
In the present invention, by adopting P2P (peer-to-peer, the partner is to the partner) Network Transmission mode of operation, make the set-top box that inserts in the P2P network can carry out the transmission of data each other, and the set-top box quantity of access network is many more, and the speed of download of user terminal is fast more.
With reference to Fig. 2, Fig. 2 is the structure diagram that the present invention is based on the multi-media data downloading system of network, this system mainly comprises four chief components: a plurality of set-top box 203 of package server 201, system management server 202, access the Internet 204, and, in set-top box 203, be provided with P2P module 2031.Wherein, package server 201 is used to carry out data and cuts apart, encapsulates; System management server 202 is used for set-top box is divided into groups, and makes that set-top box 203 is interrelated on the same group, and P2P module 2031 is used for according to carrying out data upload and/or download between related a plurality of set-top box.
With reference to Fig. 3, Fig. 3 is the flow chart of steps that the present invention is based on the method for downloading multimedia data of network, comprises the steps:
Step 301: carry out data by package server and cut apart, encapsulate;
Step 302: by described system management server described set-top box is divided into groups, making on the same group, set-top box mutual is associated;
Step 303: the P2P circuit module in the set-top box carries out data upload and/or download according to described being associated between described a plurality of set-top box.
With reference to Fig. 4, Fig. 4 is that package server carries out the concrete steps flow chart that embodiment is cut apart, encapsulated to data, comprising:
Step 401: data are divided into a plurality of packets;
Step 402: be followed successively by the continuous sequence number of each packet marking, and give each packet marking timestamp according to reproduction time.
With reference to Fig. 5, Fig. 5 is divided into groups to described set-top box by system management server, makes the inter-related flow chart of steps of set-top box on the same group, comprises the steps:
Step 501: receive the request authentication information of the P2P circuit module transmission of described set-top box, determine to add each set-top box of network;
Step 502: be divided into one group principle according to the set-top box that will upload or download same program or channel, described each set-top box is divided into groups;
Step 503:, be set-top box selection connection tabulation on the same group, and according to described connection tabulation, making on the same group, set-top box mutual is associated according to shortest path and optimum bandwidth principle.
With reference to Fig. 6, Fig. 6 is the described flow chart of steps of carrying out data upload and/or download between described a plurality of set-top box that is associated in of P2P circuit module foundation in the set-top box, comprises the steps:
Step 601: send request authentication information by the Internet to described system management server, so that described set-top box becomes the node of described network;
Step 602:, obtain the described association between the set-top box on the same group according to described connection tabulation;
Step 603:, carrying out uploading and/or downloading of packet on the same group between the set-top box according to described association;
Step 604: packet is reverted to the data file of finishing according to described sequence number, and control decoding speed to realize level and smooth decoding by described timestamp.
With reference to Fig. 7, Fig. 7 is under the P2P downloading mode, and data file is divided into the schematic diagram of packet.In this schematic diagram; a complete raw data file; according to certain rule; be split into the packet of one or several fixed sizes, packet 1, packet 2, packet 3, packet 4 ..., packet N, each packet can use specific algorithm for encryption protection (also can not use encipherment protection); among Fig. 6, packet is not through encrypting.Packet in transmission course, the sequence arrangement during no longer according to initial segmentation.They are distributed on a plurality of different user terminals.
Decoder need to prove that each packet can also have the timestamp mark except sequence label, so that can be realized level and smooth decoding.
The present invention is in the application of reality the time, and the set-top box of access network is carried out registration, mandate and authentication management, is called a node of P2P network.Then, set-top box by all adding P2P networks of P2P management system is divided into groups, its implementation procedure is: built-in EPG (the Electronic Program Guide of set-top box at first, electric program menu) program or the channel information selected of recording user, when set-top box is sent transmission grouping request EPG information is also sent to the P2P management system, system adopts automatic searching algorithm through after authenticating, and seeks all P2P network nodes that transmitting or downloading same program or channel; Then the set-top box of the request of sending as one of them adjacent P2P network node, divide in a group with them, form grouped data, grouped data is stored in the database, grouping is just finished automatically by database: the P2P management system is according to shortest path and optimum bandwidth principle then, be P2P network node selection P2P connection tabulation on the same group, each P2P network node is according to the connection tabulation search of returning automatically on the same group, and some on the same group or a plurality of P2P network nodes of selecting to have shortest path and Shan transmission speed also therefrom obtain needed packet.Therefore set-top box can be obtained packet to a plurality of P2P connected nodes simultaneously, has improved transmission speed; P2P connects the P2P node that tabulation also can only provide limited quantity simultaneously, the node number can be controlled and adjust according to the P2P network bandwidth and program situation, be convenient to centralized management, in the P2P of limited quantity network node, search for automatically and interconnect with the transmission data.
Each can require to add certain grouping at any time as P2P network node set-top box, in case by set-top box EPG information and solicited message are sent to the P2P management system, implementation procedure is the description of institute's face as above.Therefore when the user changed the program channel of watching or downloading, the P2P management system can be sought one group again with the fastest speed and have the adjacent P2P network node of shortest path and optimum bandwidth and be connected tabulation, the transmission of realization packet and shared.
By said method, all P2P network nodes on the internet all can receive that P2P connects tabulation, carries out mutual shared data and Data transmission under the condition of relative the fastest transmission speed.A P2P management system can be managed the set-top box of tens thousand of P2P network nodes, and a plurality of P2P management systems can be used simultaneously, the set-top box of the P2P network node that management increases arbitrarily.
With reference to Fig. 8, Fig. 8 is under the P2P downloading mode, and the data packet recovery of cutting apart is the schematic diagram of complete data file.Among Fig. 7 as can be seen, the client in the P2P network, after having downloaded a plurality of packets, according to sequence label, regrouping is the schematic diagram of complete file.
With reference to Fig. 9, Fig. 9 is under the P2P downloading mode, the present invention is based on the downloading process schematic diagram of the multi-media data downloading system of network, data downloading system comprises: package server 901, complete content owner 902, system management server 903, set-top box 904,905,906 etc.Set-top box 904 is sent request of data to initial complete content owner 902, and the beginning data download.In corresponding downloading process, the packet state that set-top box 904 periodically has to system management server 903 these machines of report.This process and traditional C/S mode of operation do not have the difference of essence, and still along with the increase of set-top box 904 quantity, mode of operation begins to change.When set-top box 904 when system management server 903 is initiated the request service, the network state that system management server 903 is informed (existence of packet in the P2P network) will comprise complete content owner 902 address and the address of set-top box 904 (if set-top box 904 still in downloading process or still online).Set-top box 905 will be initiated the request of data download the while to set-top box 904 and complete content owner.Notice that this moment, set-top box 904 one side were downloaded the data that do not obtain from the complete content owner, provided the data that oneself had to set-top box 905 again simultaneously, promptly carried out the work of downloading (from the complete content owner) and uploading (to set-top box 905) simultaneously.The noticeable phenomenon of another one is, set-top box 905 might have been downloaded set-top box 904 unexistent data content packets from the complete content owner, such data packet can provide (uploading) to give set-top box 904 from set-top box 905, and set-top box 904 and set-top box 905 all are the peer-to-peer network entities that can upload simultaneously and download.Download situation and foregoing description that set-top box 906 adds behind the network are similar, just relative complex.
Adopt the video system of multimedia data transmission method of the present invention below in conjunction with Figure 10, explanation.This video system comprises: user's high definition terminal 1001, the download platform subsystem 1003 that is connected with a plurality of user's high definition terminals 1001 by the Internet 1002, and the content disposal subsystem 1005 that is connected with download platform subsystem 1003 respectively, maintenance subsystem 1006, and content disposal subsystem 1005, maintenance subsystem 1006 also are connected with database subsystem simultaneously.Wherein, the download platform subsystem includes package server 10031, system management server 10032.
In user's high definition terminal 1001, comprise set-top box, be provided with the P2P module in the set-top box, the structure of this P2P module is described in the above, does not repeat them here.Package server 10031, system management server 10032 are superincumbent to be described in detail, at this, repeats no more.
The high definition video system is by main subsystem such as content disposal subsystem 1005, download platform subsystem 1003, maintenance subsystem 1006, database subsystem 1007, finish introducing from the high definition video content, download to control and realization that user terminal is watched the whole service flow process, wherein download platform subsystem 1003 adopts P2P to download transmission modes.
1005 pairs of outside movie and television contents of introducing of content disposal subsystem are distributed to download platform subsystem 1003 through after a series of processing, use for professional, and download platform is issued movie and television contents, can download for user terminal access.After the user terminal access download platform, seek the movie and television contents that needs download, download platform after business support subsystem 1004 carries out authentication, charging, allows user terminal to download this movie and television contents.After the user terminal downloads movie and video programs, can play by TV.
Further introduce Content Management below in system 1005, the Content Management of high definition video be meant the control and the processing of the video display resource that the outside is introduced make it to form the high definition video content that can meet service application, comprise following several aspect:
Gather:, make it to store in the content disposal subsystem 1005 of the collection of outside original quality than higher video display resource.Its unprocessed form may be diversified.
Audit: the content of introducing is examined, make its content meet the needs of national every laws and regulations and high definition video business.To delete undesirable video display resource.
Mark: according to certain rule movie and television contents is carried out brief description, carry out mark.
Classification: movie and television contents is carried out classification setting according to certain rule (as, more common video display classification etc.).
Index: the video display resource is carried out the processing of data aspect, make the user can better search for film.
Conversion: original movie and television contents is carried out format conversion, and it is required to make it to meet the high definition video business.Same original video display resource may convert multiple form to, adapts to the different user terminals needs.
Distribution: to coming from the service request of download platform, the movie and television contents that will meet its demand is distributed to download platform, enters the service application flow process.
High definition video described above system is provided with the P2P module in set-top box, by adopting the P2P download technology, improved the download quality, and the high definition video content by the video display platform provides has improved user's viewing quality.Strengthened the business experience that the user uses broadband video display platform, made " network " home theater really enter into family.
With reference to Figure 11, Figure 11 is the flow chart of steps that the system of video system shown in Figure 10 once downloads, and specifically comprises the steps:
Step 1101: user's starter motor top box,
Step 1102: by the input of the remote controller in hand user's user name, password;
Step 1103: system management server 11032 will be verified user profile;
Step 1104: judge that the user registers? under situation about having registered, execution in step 1106, under the situation that does not have registration, execution in step 1105;
Step 1105: register, and return step 1001;
Step 1106: enter system;
Step 1107: the subscriber computer top box is added the P2P network, to become a node of P2P network;
Step 1108: the user browses by the web server can be for the multimedia resource of downloading;
Step 1109: use a teleswitch and choose required multimedia resource, send download request;
Step 1110: other have the node set-top box of this multimedia resource in the system search P2P network;
Step 1111: judge that multimedia resource exists in other set-top box nodes of P2P network? if exist, execution in step 1112 is not if exist execution in step 1108;
Step 1112: download multimedia resource.
Each embodiment in this specification adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
More than based on network multi-media data downloading system provided by the present invention, video system are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. based on network method for downloading multimedia data, it is characterized in that, described network comprises a plurality of set-top box, the audio frequency and video output device that is connected with described set-top box respectively, at least one package server, at least one system management server, be respectively arranged with the P2P circuit module in described a plurality of set-top box, described method comprises the steps:
Carrying out data by package server cuts apart, encapsulates;
By described system management server described set-top box is divided into groups, making on the same group, set-top box mutual is associated;
P2P circuit module in the set-top box carries out data upload and/or download according to described being associated between described a plurality of set-top box.
2. method according to claim 1 is characterized in that, describedly carries out data by package server and cuts apart, encapsulates further and comprise the steps:
Described data are divided into a plurality of packets;
Be followed successively by the continuous sequence number of each packet marking, and give described each packet marking timestamp according to reproduction time.
3. method according to claim 2 is characterized in that, describedly by system management server described set-top box is divided into groups, and set-top box mutual is associated specifically comprises the steps:
Receive the request authentication information of the P2P circuit module transmission of described set-top box, determine to add each set-top box of network;
Be divided into one group principle according to the set-top box that will upload or download same program or channel, described each set-top box is divided into groups;
According to shortest path and optimum bandwidth principle, be set-top box selection connection tabulation on the same group, and according to described connection tabulation, making on the same group, set-top box mutual is associated.
4. method according to claim 3 is characterized in that, the P2P circuit module in the described set-top box carries out data upload and/or download further comprising the steps: according to described being associated between described a plurality of set-top box
Send request authentication information by the Internet to described system management server, so that described set-top box becomes the node of described network;
According to described connection tabulation, obtain the described association between the set-top box on the same group;
According to described association, carrying out uploading and/or downloading of packet on the same group between the set-top box;
Packet is reverted to the data file of finishing according to described sequence number, and control decoding speed to realize level and smooth decoding by described timestamp.
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| CN2009100859334A CN101902389A (en) | 2009-05-27 | 2009-05-27 | Method for downloading multimedia data based on network |
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| CN2009100859334A CN101902389A (en) | 2009-05-27 | 2009-05-27 | Method for downloading multimedia data based on network |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196314A (en) * | 2011-03-28 | 2011-09-21 | 苏州汉辰数字多媒体有限公司 | System and method for realizing streaming media transmission by using peer-to-peer (P2P) set-top box |
| CN106060596A (en) * | 2016-06-29 | 2016-10-26 | 江苏省公用信息有限公司 | User grouping system and method of internet protocol television |
| CN107948717A (en) * | 2017-12-01 | 2018-04-20 | 广东九联科技股份有限公司 | A kind of set-top box broadband network shared system |
| CN109688417A (en) * | 2018-12-12 | 2019-04-26 | 广州虎牙信息科技有限公司 | A kind of data distribution systems, method, apparatus, TV box and storage medium |
| CN112822510A (en) * | 2020-12-30 | 2021-05-18 | 深圳市亿联智能有限公司 | Content distribution acceleration method of intelligent set top box |
-
2009
- 2009-05-27 CN CN2009100859334A patent/CN101902389A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196314A (en) * | 2011-03-28 | 2011-09-21 | 苏州汉辰数字多媒体有限公司 | System and method for realizing streaming media transmission by using peer-to-peer (P2P) set-top box |
| CN106060596A (en) * | 2016-06-29 | 2016-10-26 | 江苏省公用信息有限公司 | User grouping system and method of internet protocol television |
| CN106060596B (en) * | 2016-06-29 | 2020-06-02 | 天翼智慧家庭科技有限公司 | User grouping system and method for interactive network television |
| CN107948717A (en) * | 2017-12-01 | 2018-04-20 | 广东九联科技股份有限公司 | A kind of set-top box broadband network shared system |
| CN109688417A (en) * | 2018-12-12 | 2019-04-26 | 广州虎牙信息科技有限公司 | A kind of data distribution systems, method, apparatus, TV box and storage medium |
| CN112822510A (en) * | 2020-12-30 | 2021-05-18 | 深圳市亿联智能有限公司 | Content distribution acceleration method of intelligent set top box |
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Application publication date: 20101201 |