CN102523298A - Video acquiring and sharing system based on mobile terminal and process method thereof - Google Patents
Video acquiring and sharing system based on mobile terminal and process method thereof Download PDFInfo
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Abstract
The invention discloses a video acquiring and sharing system based on a mobile terminal and a process method thereof. The video acquiring and sharing system comprises the mobile terminal, a center node and a plurality of city nodes, the center node and the city nodes are connected through the content delivery network, the center node comprises a data delivery server cluster, a data cache server cluster, a data synchronous server cluster and a user authentication server cluster, each city node comprises a stream media server cluster, and the data cache server cluster, the data synchronous server cluster and the user authentication server cluster are connected mutually through the network. The video acquiring and sharing system based on the mobile terminal and the process method thereof have the advantages that due to the fact that the center node is provided with the data synchronous server cluster and the data cache server cluster, tree-like delivery servers and multi-cast of 'application layer' of stream media are realized, stress on a center node server and the backbone network is reduced and service quality for users accessing contents of the stream media is improved.
Description
Technical field
The present invention relates to a kind of video acquisition share system and processing method thereof, relate in particular to a kind of video acquisition share system and processing method thereof based on portable terminal.
Background technology
Portable terminals such as mobile phone have become the requisite means of communication of people gradually.Along with popularizing of 3G,, originally use can be linked into to move and use based on the Streaming Media of desktop in conjunction with the continuous development of Streaming Media application and the lifting of mobile terminal performance.Stream media technology based on portable terminal can be widely used in multimedia news briefing, online live; The web advertisement, ecommerce, video request program, long-distance education, tele-medicine, network radio station, real-time video meeting etc.; It has enriched the form of expression of traditional internet content, and it is more recreational and interactive to give broadband application.To become the professional mainstream technology of following broadband network round the multiplication technique field that mobile flow medium is used.
Streaming media service is big owing to data traffic, thereby is prone to backbone traffic is impacted.Because real-time and quality are the key issues of Streaming Media, therefore, be necessary video acquisition share system and the processing method thereof that provide new based on portable terminal for guaranteeing time delay and quality.
Summary of the invention
Technical problem to be solved by this invention provides a kind of video acquisition share system and processing method thereof based on portable terminal; Not only improved the service quality of user capture audio-video frequency content effectively; Alleviate the pressure of Centroid server and backbone network, and support up to ten million concurrent users to share the mobile flow medium application service simultaneously.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of video acquisition share system based on portable terminal; Comprise portable terminal, Centroid and a plurality of urban node; Said Centroid links to each other through content distributing network with a plurality of urban nodes; Said Centroid comprises the data distributing server cluster, and said urban node comprises the streaming media server cluster, wherein; Said Centroid also comprises data synchronization server cluster and subscriber authentication server cluster, and said synchronization server cluster, subscriber authentication server cluster and data distributing server cluster are through network interconnection.
Above-mentioned video acquisition share system based on portable terminal; Wherein, Said Centroid also comprises the metadata cache server cluster; Said metadata cache server cluster and subscriber authentication server cluster, data distributing server cluster are through network interconnection, and real-time update is stored user login information, positional information, transmitting-receiving video recordings, urban node information.
The above-mentioned video acquisition share system based on portable terminal, wherein, said portable terminal inserts the Internet through 3G/Wifi and links to each other with said Centroid, a plurality of urban node.
The present invention solves the problems of the technologies described above the processing method that a kind of video acquisition share system based on portable terminal also is provided; Comprise the steps: 1) mobile phone users logging on client program, submit username and password information to the subscriber authentication server cluster of Centroid; 2) the subscriber authentication server cluster carries out authentication to the user profile of submitting to, judges that it whether can login system; 3) the data distributing server cluster is logined the position that the mobile device of use obtains the user according to the user; 4) the data distributing server cluster is resolved user's address according to user's position; 5) all urban nodes of data distributing server cluster inquiry system, and according to user's address are from closely to ordering far away; 6) the data distributing server cluster is from closely to judging far one by one whether urban node is available, if available with regard to this node logon information of distributing user; 7) portable terminal is opened video acquisition module, and the acquisition parameter of adjustment camera and microphone apparatus, coded format; 8) portable terminal is set up session connection according to the urban node address login that the user distributes with urban node; 9) portable terminal is according to the parameter acquisition video/audio, and carries out the audio, video data coding according to coded format; 10) portable terminal is real-time transmitted to the data that encode the streaming media server cluster of urban node with the Streaming Media mode; 11) the streaming media server cluster of urban node obtains file path, calls memory function and is saved in coded data in the file.
The processing method of above-mentioned video acquisition share system based on portable terminal; Wherein, Data between said Centroid and a plurality of urban node share comprise the steps: 1 synchronously) mobile phone users logging on client program, submit username and password information to the subscriber authentication server cluster of Centroid; 2) the subscriber authentication server cluster carries out authentication to the user profile of submitting to, judges that it whether can login system; 3) the metadata cache server is judged the video information whether this login user has the good friend that do not read to share; 4) the data synchronization server cluster is logined the position that the mobile device of use obtains the user according to the user; 5) the data synchronization server cluster is resolved user's address according to user's position; 6) all urban nodes of data synchronization server cluster inquiry system, and, obtain suitable urban node information according to user's address; 7) the data synchronization server cluster distributes the urban node address for the user; 8) portable terminal is opened sharing video frequency information, sets up session connection with the urban node that distributes; 9) if the urban node that distributes has the sharing video frequency file, then mobile terminal playing is stored in the sharing video frequency file on the streaming media server cluster of urban node; If the urban node that distributes does not have the sharing video frequency file, then the data synchronization server cluster of Centroid is synchronized to the urban node of this distribution with corresponding video file from ancestor node, and by this sharing video frequency file of portable terminal online playing.
The processing method of above-mentioned video acquisition share system based on portable terminal; Wherein, Said Centroid also comprises the metadata cache server cluster, said metadata cache server cluster real-time update storage user login information, positional information, transmitting-receiving video recordings, urban node information; When video is shared logging in system by user; The metadata cache server cluster judges to concentrate in the buffer memory whether have corresponding information earlier; Then directly read the data cached authentification of user that carries out if exist; If not having this user of explanation is the login system first time, then remove the database of calling party certificate server cluster; After authentification of user passed through, the metadata cache server cluster took out urban node information from buffer memory, matees with customer position information, and user's urban node information updating of distributing is saved in the metadata cache server cluster; The metadata cache server cluster directly takes out the video recordings of Gong sharing from buffer memory.
The present invention contrasts prior art has following beneficial effect: video acquisition share system and processing method thereof based on portable terminal provided by the invention; Through data synchronization server cluster and metadata cache server cluster are set at Centroid; Realize the tree type distribution services and " application layer " multicast of Streaming Media; Thereby alleviate the pressure of Centroid server and backbone network, improve the service quality of user capture streaming medium content.
Description of drawings
Fig. 1 is the video acquisition share system structural representation that the present invention is based on portable terminal;
Fig. 2 is that the video acquisition that the present invention is based on portable terminal is uploaded flow chart;
Fig. 3 is that the video acquisition that the present invention is based on portable terminal is shared synchronous flow chart.
Among the figure:
1 portable terminal, 2 3G/Wifi, 3 the Internets
4 Centroids, 5 content distributing networks, 6 urban nodes
41 metadata cache server clusters, 42 data distributing server clusters
43 data synchronization server clusters, 44 subscriber authentication server clusters
61 streaming media server clusters
62 WAP/WEB server clusters.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further description.
Fig. 1 is the video acquisition share system structural representation that the present invention is based on portable terminal.
See also Fig. 1; Video acquisition share system based on portable terminal provided by the invention comprises portable terminal 1, Centroid 4 and a plurality of urban node 6; Said Centroid 4 links to each other through content distributing network 5 with a plurality of urban nodes 6; Said Centroid 4 comprises data distributing server cluster 42; Said urban node 6 comprises streaming media server cluster 61; Wherein, said Centroid 4 also comprises metadata cache server cluster 41, data synchronization server cluster 43 and subscriber authentication server cluster 44, and said metadata cache server cluster 41, synchronization server cluster 43, subscriber authentication server cluster 44 and data distributing server cluster 42 are through network interconnection.Said portable terminal 1 inserts the Internet 3 (Internet) through 3G/Wifi and links to each other with said Centroid 4, a plurality of urban node 6; Said urban node 6 can also comprise WAP/WEB server cluster 62, details no longer one by one at this.
The above-mentioned video acquisition share system based on portable terminal is divided into three parts, 1 video management platform (Centroid), shares net, a plurality of urban node based on the video of CDN (content distributing network).Wherein, the mainly responsible mobile phone users authentication of video management platform, metadata cache, video distribution are shared with video synchronously.Share net based on the video of CDN and comprise the Internet and backbone network, be responsible for request scheduling with the user to suitable network node.Urban node is the content providing platform towards the end user, is responsible for Streaming Media authentication, storage, broadcast and other services etc.The user utilizes the built-in camera of portable terminal, with the audio frequency and video of taking,, and can handle as follows with the Streaming Media mode end that uploads onto the server through networks such as 3G, WiFi: (a) real-time live streaming media; (b) get off with the media file stored in form, supply the authorized user program request; (c) audio frequency and video are sent to user's the object of sharing, receiving terminal comprises mobile phone, computer or special terminal equipment etc.
Fig. 2 is that the video acquisition that the present invention is based on portable terminal is uploaded flow chart.
Please continue referring to Fig. 2, the invention discloses a kind of automatic dispensing applications of node and implementation method based on video acquisition user mobile phone address.Concrete grammar and flow process are following:
1) portable terminal 1 user's logging on client program is submitted user's information such as username and password to the server of Centroid 4;
2) user profile of 44 pairs of submissions of subscriber authentication server cluster of Centroid 4 is carried out authentication, judges whether it can login system.
3) the data distributing server cluster 42 of Centroid 4 is logined the mobile device such as the mobile phone of use, the position that obtains the user according to the user.
4) the data distributing server cluster 42 of Centroid 4 is resolved user's address according to user's position.
5) all urban nodes 6 of data distributing server cluster 42 inquiry systems of Centroid 4, and according to user's address are from closely to ordering far away.
6) the data distributing server cluster 42 of Centroid 4 is from closely to judging far one by one whether urban node is available, if available with regard to this node logon information of distributing user.
7) portable terminal 1 is opened video acquisition module, and the acquisition parameter of adjustment camera and microphone apparatus, coded format.
8) portable terminal 1 is set up session connection according to the urban node address login that the user distributes with urban node.
9) portable terminal 1 is according to the parameter acquisition video/audio, and carries out the audio, video data coding according to coded format.
10) portable terminal 1 is real-time transmitted to the data that encode the streaming media server cluster 61 of urban node with the Streaming Media mode.
11) the streaming media server cluster 61 of urban node obtains file path, calls memory function and is saved in coded data in the file.
Said method is compared other system, has used advanced caching technology, and the metadata cache server cluster 41 of Centroid is for the hot spot data that needs frequent access; Such as: a lot of configuration informations; User login information or the like adopt to be concentrated buffer memory (system data buffer memory and business datum buffer memory, a plurality of can adopt load balancing); Effectively reduce network traffic data, alleviate the pressure of database; Avoid the data process repeats, under the prerequisite of the real-time, interactive demand that does not reduce data, most data are got up by various ways buffer memorys such as database, file, internal memories.Simultaneously; Carry out the adjustment of the cache policy and the term of validity on the system backstage, formulate buffer update mechanism and garbage reclamation mechanism, ensure to be buffered in when upgrading system load pressure is reduced to minimum; The guarantee cache contents can forcibly not occupied system resource for a long time, remains operation mode efficiently.Data cached user login information, positional information, transmitting-receiving video recordings, the urban node information etc. of comprising of the present invention.During the video acquisition logging in system by user, server end judges in the concentrated buffer memory whether have corresponding information earlier, then directly reads the data cached authentification of user that carries out if exist, and is the login system first time if there is not this user of explanation, then removes accessing database.System takes out urban node information from buffer memory, mate with customer position information, and user's urban node information of distributing is kept in the buffer memory.
In addition; The present invention also has the technical characterictic that following outstanding video data is distributed: the streaming medium content that the data distributing server cluster 42 of Centroid is uploaded portable terminal is shared net through the video based on CDN, distributes the nearest network edge service node storage of most user's distribution.Significantly reduced the pressure of Centroid 4 data sources.Each service node of traditional C DN causes data source pressure big if acquisition Centroid data source data all needs direct visit data source server, and bandwidth consumed is many, and the center of causing can not get ensureing to the data link at edge.And pass through the direct and CDN service node transmission data of user, and greatly reduce the pressure in centre data source, shorten communication distance simultaneously, the stable high bandwidth of Video Applications and the high QoS of having guaranteed effectively guarantees demand.
Fig. 3 is that the video acquisition that the present invention is based on portable terminal is shared synchronous flow chart.
Please continue referring to Fig. 3, the invention discloses a kind of application of node file synchronization and implementation method of sharing object mobile phone address based on video.Concrete grammar and flow process are following:
1) portable terminal 1 user's logging on client program is submitted user's information such as username and password to the server of Centroid.
2) user profile of 44 pairs of submissions of subscriber authentication server cluster of Centroid 4 is carried out authentication, judges whether it can login system.
3) the metadata cache server cluster 41 of Centroid 4 is judged the video information (Centroid can be notified and share object during good friend's sharing video frequency) whether this login user has the good friend that do not read to share.
4) the data synchronization server cluster 43 of Centroid 4 is logined the mobile device such as the mobile phone of use, the position that obtains the user according to the user.
5) the data synchronization server cluster 43 of Centroid 4 is resolved user's address according to user's position.
6) all urban nodes 6 of data synchronization server cluster 43 inquiry systems of Centroid 4, and, obtain suitable urban node information according to user's address.
7) the data synchronization server cluster 43 of Centroid 4 distributes the urban node address for the user.
8) portable terminal 1 is opened sharing video frequency information, sets up session connection with the urban node that distributes.
9) if the urban node that distributes has the sharing video frequency file, then mobile terminal playing is stored in the sharing video frequency file on the streaming media server cluster 61 of urban node 6; If the urban node that distributes does not have the sharing video frequency file, then the data synchronization server cluster 43 of Centroid 4 is synchronized to the urban node of this distribution with corresponding video file from ancestor node, and by this sharing video frequency file of portable terminal online playing.
Said method is compared other system, has used advanced caching technology, and the metadata cache server cluster 41 of Centroid is for the hot spot data that needs frequent access; Such as: a lot of configuration informations; User login information or the like adopt to be concentrated buffer memory (system data buffer memory and business datum buffer memory, a plurality of can adopt load balancing); Effectively reduce network traffic data, alleviate the pressure of database; Avoid the data process repeats, under the prerequisite of the real-time, interactive demand that does not reduce data, most data are got up by various ways buffer memorys such as database, file, internal memories.Simultaneously; Carry out the adjustment of the cache policy and the term of validity on the system backstage, formulate buffer update mechanism and garbage reclamation mechanism, ensure to be buffered in when upgrading system load pressure is reduced to minimum; The guarantee cache contents can forcibly not occupied system resource for a long time, remains operation mode efficiently.Data cached user login information, positional information, transmitting-receiving video recordings, the urban node information etc. of comprising of the present invention.When video was shared logging in system by user, server end judged in the concentrated buffer memory whether have corresponding information earlier, then directly reads the data cached authentification of user that carries out if exist, and was the login system first time if there is not this user of explanation, then removed accessing database.After authentification of user passed through, system took out urban node information from buffer memory, mated with customer position information, and user's urban node information of distributing is kept in the buffer memory.System takes out the video recordings of Gong sharing from buffer memory.
In addition; The present invention also has the following outstanding synchronous technical characterictic of video data: the user watches when playing the video information share at portable terminal; This video information is asked for to the urban node of data synchronization server cluster 43 distribution of Centroid by elder generation; If this urban node of content that the user needs does not have, then node is asked for to Centroid 4 through sharing net based on the video of CDN, like this; The data synchronization server cluster 43 of Centroid through the data image simultaneous techniques, backups to this video file and shares the corresponding urban node of user from the original urban node of the video information of storage.Between this node and user, connect portable terminal online playing video file then.If this urban node of content that the user needs existing (user watches the user who plays this video file or belong to this urban node together to play this video for the second time), then portable terminal directly connects this urban node and playing video file.Compare with traditional C DN mode; The present invention adopts and organizes the CDN node device with the mode of P2P, utilizes directory service and the multicast communication ability of P2P, realizes content exchange, backup mutually between the CDN node device; Strengthening video from the center to the fringe node thus shares the content transmission efficiency of net, system redundancy property is improved; Thereby promote the content distribution capability of CDN, increase content, user's manageability, make that simultaneously network traffics are more orderly.
In sum; Through the present invention, can a large amount of streaming medium contents be distributed in province's net, the local network scope in advance, the business service point that makes the user is more near the user; Shorten communication distance; Stable high bandwidth that guarantees Video Applications effectively and high QoS guarantee demand (as video bandwidth need up to 500kbit/s-1Mbit/s, the MMS/TCP Media Stream of 750kbit/s requires end-to-end packet loss less than 2%, two-way time delay is less than 140ms).Through caching mechanism of the present invention, can alleviate the impact that streaming media service flows to backbone traffic greatly.Dispose through the node type distribution; Streaming media server is disperseed and transfers; Can effectively alleviate the pressure that SP is inserted; Fully satisfy simultaneously a large amount of concurrent streaming media service requests (general server can support 1000 with interior concurrent Streaming Media visit, utilizes the concurrent ability of reprocessing of the present invention to become hundreds of times to increase).
Though the present invention discloses as above with preferred embodiment; Right its is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing a little modification and perfect, so protection scope of the present invention is when being as the criterion with what claims defined.
Claims (6)
1. video acquisition share system based on portable terminal; Comprise portable terminal (1), Centroid (4) and a plurality of urban node (6); Said Centroid (4) links to each other through content distributing network (5) with a plurality of urban nodes (6); Said Centroid (4) comprises data distributing server cluster (42); Said urban node (6) comprises streaming media server cluster (61); It is characterized in that said Centroid (4) also comprises data synchronization server cluster (43) and subscriber authentication server cluster (44), said synchronization server cluster (43), subscriber authentication server cluster (44) and data distributing server cluster (42) are through network interconnection.
2. the video acquisition share system based on portable terminal as claimed in claim 1; It is characterized in that; Said Centroid (4) also comprises metadata cache server cluster (41); Said metadata cache server cluster (41) and subscriber authentication server cluster (44), data distributing server cluster (42) are through network interconnection, and real-time update is stored user login information, positional information, transmitting-receiving video recordings, urban node information.
3. according to claim 1 or claim 2 the video acquisition share system based on portable terminal is characterized in that, said portable terminal (1) inserts the Internet (3) through 3G/Wifi (2) and links to each other with said Centroid (4), a plurality of urban node (6).
4. the processing method of the video acquisition share system based on portable terminal as claimed in claim 1 is characterized in that, comprises the steps:
1) portable terminal (1) user's logging on client program is submitted username and password information to subscriber authentication server cluster (44);
2) subscriber authentication server cluster (44) carries out authentication to the user profile of submitting to, judges that it whether can login system;
3) data distributing server cluster (42) is logined the position that the mobile device of use obtains the user according to the user;
4) data distributing server cluster (42) is resolved user's address according to user's position;
5) all urban nodes (6) of data distributing server cluster (42) inquiry system, and according to user's address are from closely to ordering far away;
6) data distributing server cluster (42) is from closely to judging far one by one whether urban node (6) is available, if available with regard to this node logon information of distributing user;
7) portable terminal (1) is opened video acquisition module, and the acquisition parameter of adjustment camera and microphone apparatus, coded format;
8) portable terminal (1) is set up session connection according to the urban node address login that the user distributes with urban node (6);
9) portable terminal (1) is according to the parameter acquisition video/audio, and carries out the audio, video data coding according to coded format;
10) portable terminal (1) is real-time transmitted to the data that encode the streaming media server cluster (61) of urban node (6) with the Streaming Media mode;
11) the streaming media server cluster (61) of urban node (6) obtains file path, calls memory function and is saved in coded data in the file.
5. the processing method of the video acquisition share system based on portable terminal as claimed in claim 4 is characterized in that, the data between said Centroid (4) and a plurality of urban node (6) are shared synchronously and comprised the steps:
1) portable terminal (1) user's logging on client program is submitted username and password information to the subscriber authentication server cluster (44) of Centroid (4);
2) subscriber authentication server cluster (44) carries out authentication to the user profile of submitting to, judges that it whether can login system;
3) metadata cache server (41) is judged the video information whether this login user has the good friend that do not read to share;
4) data synchronization server cluster (43) is logined the position that the mobile device of use obtains the user according to the user;
5) data synchronization server cluster (43) is resolved user's address according to user's position;
6) all urban nodes (6) of data synchronization server cluster (43) inquiry system, and, obtain suitable urban node information according to user's address;
7) data synchronization server cluster (43) distributes the urban node address for the user;
8) portable terminal (1) is opened sharing video frequency information, sets up session connection with the urban node (6) that distributes;
9) if the urban node that distributes has the sharing video frequency file, then mobile terminal playing is stored in the sharing video frequency file on the streaming media server cluster (61) of urban node (6); If the urban node that distributes does not have the sharing video frequency file, then the data synchronization server cluster (43) of Centroid is synchronized to the urban node of this distribution with corresponding video file from ancestor node, and by this sharing video frequency file of portable terminal online playing.
6. like the processing method of claim 4 or 5 described video acquisition share systems based on portable terminal; It is characterized in that; Said Centroid (4) also comprises metadata cache server cluster (41), said metadata cache server cluster (41) real-time update storage user login information, positional information, transmitting-receiving video recordings, urban node information; When video is shared logging in system by user; Metadata cache server cluster (41) judges to concentrate in the buffer memory whether have corresponding information earlier; Then directly read the data cached authentification of user that carries out if exist; If not having this user of explanation is the login system first time, then remove the database of calling party certificate server cluster (44); After authentification of user passed through, metadata cache server cluster (41) took out urban node information from buffer memory, matees with customer position information, and user's urban node information updating of distributing is saved in the metadata cache server cluster (41); Metadata cache server cluster (41) directly takes out the video recordings of Gong sharing from buffer memory.
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