WO2010083736A1 - 节目内容处理的方法、系统及设备 - Google Patents
节目内容处理的方法、系统及设备 Download PDFInfo
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- WO2010083736A1 WO2010083736A1 PCT/CN2010/070066 CN2010070066W WO2010083736A1 WO 2010083736 A1 WO2010083736 A1 WO 2010083736A1 CN 2010070066 W CN2010070066 W CN 2010070066W WO 2010083736 A1 WO2010083736 A1 WO 2010083736A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23116—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving data replication, e.g. over plural servers
Definitions
- the present invention relates to video on demand technology, and more particularly to a method, system and device for processing program content in a video on demand service, the device comprising a program content scheduling center and a program content subcenter.
- the video on demand service in the two-way digital TV interactive service has changed the traditional "you broadcast me” mode. Previously watching TV, it was the user and other programs. What did the TV station broadcast, the user had to watch what, if there was a favorite program, it would have to Wait until the TV station plays to watch.
- the video on demand business classifies the rich content of movies, TV dramas, column programs, popular music, exciting events, etc. on the server, adopts the "I want you to broadcast” mode, what the user wants to see, the server What program content is played to the user.
- the content of the program is played to the user through the content distribution network.
- the content distribution network includes at least three levels of server groups, which are centers, sub-centers, and sub-edges.
- the center includes a central storage area and a central backup area in which all program content is stored, and the central backup area backs up all program content in the central storage area.
- the content of all programs includes popular content and unpopular content. For example, popular content accounts for 20%, and unpopular content accounts for 80%. So-called popular content, that is, program content with high user viewing rate, is the latest and best of all program contents.
- the content of the program, the so-called unpopular content is the content of the program with low user viewing rate.
- the center evaluates all the content of the program, evaluates the popular content and the unpopular content, and distributes the popular content to each sub-center.
- Each sub-center has multiple sub-edges, and the sub-center then displays the program with a relatively high viewing rate among the popular content.
- the content is sent to each sub-edge.
- the terminal requests service from the nearest sub-edge to obtain the desired program content, and the terminal may be a two-way digital television.
- FIG. 1 it is a schematic structural diagram of a content distribution network in the prior art. In the figure, it is assumed that the content distribution network has N sub-centers, and the figure shows N sub-edges of the sub-center.
- the terminal When the user views the program content, the terminal sends a program request to the sub-edge closest to the program, where the program request includes the instruction information of the program content selected by the user, and after receiving the program request, the sub-edge searches for whether the storage is stored in the storage space.
- the content of the program selected by the user if any, plays the content to the terminal; If not, the program request is sent to the upper-level sub-center of the sub-edge.
- the sub-center After receiving the program request, the sub-center searches whether the program content selected by the user is stored in the storage space of the sub-center itself, and if so, The program content is sent to the sub-edge, and the sub-edge plays the program content to the terminal; if the sub-center does not find the program content in its storage space, the program request is sent to the center, and after receiving the program request, the center The central storage area finds the content of the program and sends it to the sub-center. The sub-center stores the program content and plays it to the terminal through the sub-edge.
- the center is set in the existing content distribution network, and all the program contents are stored in the central storage area of the center, and all program contents are backed up in the central backup area.
- the content stored in the center will continue to increase, and the central storage area and the central backup area will continue to expand capacity, which will increase the cost of the center; and, there is a risk of collapse, when the center stores In the event of a crash, all program content will be lost, and the loss of program content will have a bearing on the operation.
- Embodiments of the present invention provide a method, system, and device for processing program content to reduce program content storage cost.
- a method of processing program content comprising:
- the dispatching center monitors all sub-centers, stores description information of all sub-centers, determines a destination sub-center that can be backed up, and sends a backup instruction to the source sub-center, so that the source sub-center backs up and stores the program content stored by itself.
- the destination sub-center corresponding to the destination address included in the instruction;
- the dispatching center stores the correspondence between the indication information of the program content backed up by the source subcenter and the destination subcenter.
- a system for processing program content including a dispatch center and a plurality of sub-centers;
- the sub-center is configured to store program content uploaded to the local sub-center, and receive a backup instruction sent by the dispatching center, where the backup instruction includes a backup destination address, and the sub-center backs up the program content stored by itself to the destination address.
- the backup instruction includes a backup destination address
- the sub-center backs up the program content stored by itself to the destination address.
- the scheduling center is configured to monitor the status of all sub-centers, store description information of all sub-centers, determine sub-centers that can be backed up, and send backup instructions to each sub-center to store backups in the sub-center that actively performs backup.
- a program content dispatching center includes a monitoring module and a backup instruction issuing module; the monitoring module is configured to monitor all sub-center conditions, store description information of all sub-centers, and determine a sub-center that can be backed up and The backup instruction issuing module sends a backup instruction, where the backup instruction includes a backup destination address;
- the backup instruction issuing module is configured to receive the backup instruction, send the message to the child center, and store the correspondence between the instruction information of the program content in the sub-center that is actively performing backup and the sub-center that is passively backed up. relationship.
- a program content sub-center including a storage module and a backup module
- the storage module is configured to store program content uploaded to a local sub-center
- the backup module is configured to receive a backup instruction sent by the scheduling center, and back up the program content stored by itself to a sub-center corresponding to the destination address included in the backup instruction.
- each sub-center stores program content uploaded to the local sub-center, and the dispatch center monitors all sub-center conditions, and backs up the program content uploaded to the local sub-center to other Subcenter.
- the program content processing scheme provided by the present invention, it is no longer necessary to set a center for storing all program contents and all backed up program contents, thereby saving storage costs.
- FIG. 1 is a schematic structural diagram of a content distribution network in the prior art
- FIG. 2 is a schematic flowchart of a method for processing program content in an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a content distribution network in an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a system for processing program content according to an embodiment of the present invention.
- each sub-center is large enough, in addition to providing on-demand services for a specified number of terminals, there is still some surplus.
- the program content of the other sub-centers is backed up and stored by using the remaining storage space in each sub-center, so that the center of storing all program content and all the backup program content is no longer set in the content distribution network, thereby saving storage. Resources.
- An exemplary flowchart of a method for processing program content of an embodiment of the invention includes the following steps:
- Step 201 Each sub-center stores program content uploaded to the local sub-center.
- the local control device can upload program content to the sub-center where it is located according to actual needs, and the program content can include current hot content. For example, for a sub-center in the Shenzhen area, the content of the program uploaded to the Shenzhen sub-center can be received and stored.
- Step 202 The dispatching center monitors the status of all the sub-centers, stores the description information of all the sub-centers, determines the sub-centers that can be backed up, and sends a backup instruction to each sub-center, where the backup instruction includes the backup destination address.
- the dispatching center monitors the status of all sub-centers, and obtains and stores description information for all sub-centers, including the remaining status of each sub-center storage space, the distance between each sub-center, and the indication information of the program content stored in each sub-center. , the click rate of the user's content on the program within the coverage of each sub-center, and so on.
- the respective sub-center storage spaces may be only for each sub-center itself; or for each sub-center and sub-edges of the sub-center, that is, if sub-edges of a sub-center subordinate If there is enough remaining space, the remaining storage space of the sub-edge can be considered as the remaining storage space of the sub-center.
- the dispatching center generates, according to the indication information of the program content stored in each sub-center, a program list, where the program table includes indication information of all program contents in all sub-centers; and then, the dispatching center sends the program table to each sub-center through a sub-edge of each sub-center, the sub-edge displays the program list to the user through the terminal, and the user selects indication information about a certain program content from the program list; the terminal sends a program request to the sub-edge according to the user's selection to obtain the program content, The program request includes indication information of the program content selected by the user.
- the dispatch center also updates the program schedules sent to each sub-edge in real time.
- the scheduling center determines the backup relationship between the sub-centers according to the description information of all the sub-centers, and sends a backup instruction to each sub-center, where the backup instruction includes the backup destination address.
- the dispatching center sends a backup command according to the remaining conditions of the storage space of each sub-center. Specifically, if there is enough remaining storage space in a sub-center, the remaining storage space can ensure that the sub-center is used for storage and uploading.
- the program content of the local sub-center, and the storage space of the sub-center, and the redundant storage space, the dispatching center sends a backup instruction to the other specified at least one sub-center, and the designated at least one sub-center
- the program content is backed up to the redundant storage of the sub-center Storage space, after backup, the dispatch center stores the correspondence between the sub-centers for backup.
- the dispatch center performs the backup instruction according to the remaining status of the storage space of each sub-center and the distance between the sub-centers, specifically, if the dispatch center finds a certain child If there is enough remaining space in the center, a backup instruction is sent to the sub-center adjacent to the sub-center, so that the sub-center adjacent to the sub-center backs up the program content to the sub-center, and after the backup, the dispatch center stores the storage.
- the correspondence between the sub-centers of the backup so that the backed up program content can be conveniently obtained from the adjacent sub-centers when needed.
- the two sub-centers that will perform the backup are referred to as the source sub-center and the destination sub-center, respectively, wherein the sub-center corresponding to the destination address included in the backup instruction is referred to as the destination sub-center, and the other sub-center is referred to as the source sub-center Center, the source sub-center is the sub-center that actively performs backup, and the destination sub-center is the sub-center that passively performs backup.
- the correspondence between the sub-centers includes a correspondence between the indication information of the program content backed up in the source sub-center and the destination sub-center.
- the correspondence between the sub-centers includes not only a correspondence between an address of the source sub-center and an address of the destination sub-center, but also an address between the address of the source sub-center and the indication information of the program content to be backed up. Correspondence.
- the corresponding relationship between the sub-centers that are backed up is stored in the dispatching center, when the content of the program in a sub-center is found to be broken, the corresponding relationship between the sub-centers stored in the dispatching center may be used in the corresponding purpose.
- the sub-center obtains the content of the program to be backed up; it should be noted that the content of the program stored in one sub-center may be divided into several parts and backed up to two or more sub-centers respectively. At this time, according to the corresponding relationship of the sub-centers, Get the backed up program content to more than two sub-centers.
- Step 203 Each sub-center backs up the program content stored by itself to a sub-center corresponding to the destination address included in the backup instruction.
- the source sub-center copies the program content stored by itself to the destination sub-center one by one. During the copying process, if it is determined that the target sub-center has stored a certain program content, in order to save storage space, the program content is not copied. Go to the destination subcenter.
- a scheduling center is added to the content distribution network, and the scheduling center monitors the status of all the sub-centers, so that each sub-center backs up the program content uploaded to the local sub-center to other sub-centers.
- the embodiment of the invention adopts a program content storage scheme different from the existing one, and does not need to set a center for storing all program content and all backed up program content, and the dispatching center stores description information of all sub-centers, and the storage capacity thereof is much smaller than the existing one.
- the storage capacity of the center in technology, which reduces the cost of content storage.
- FIG. 3 is an example of a structure of a content distribution network according to an embodiment of the present invention.
- a scheduling center is added to a content distribution network, and a center is no longer set.
- each sub-center is provided.
- Subordinates have multiple sub-edges.
- the arrows in the figure point to the backup direction of the program content, and the sub-centers can be backed up each other.
- the dispatching center also evaluates the program content stored in each sub-center, and if it is hot content, sends an acquisition instruction to the other sub-centers, in the obtaining instruction The address of the sub-center where the hot content is located and the indication information of the hot content; after receiving the acquisition instruction, the other sub-center obtains the popular content and stores it in the sub-center where the hot content is located.
- the evaluation may be performed according to characteristics of the program content. For example, if a movie is directed by Zhang Yimou, the movie is evaluated as popular content; and the evaluation may also be performed according to the user's click rate of the program content. , evaluate the content of the program with high user click-through rate as popular content.
- the program content processing scheme of the embodiment of the present invention further includes a program content publishing process: the terminal sends a program request to the sub-edge, and after receiving the program request, the sub-edge searches for whether the program content selected by the user is stored in the storage space of the user. , if so, play the content to the terminal;
- the sub-center searches for storage in the storage space of the sub-center.
- the program content selected by the user if so, the content is delivered to the sub-edge, and the sub-edge plays the content to the terminal; if the sub-center does not find the program content in its storage space, the program is sent to the dispatch center.
- the dispatching center After receiving the program request, the dispatching center searches for the sub-center where the program content selected by the user is located in the indication information of the program content stored in each sub-center stored by itself, and feeds back the found sub-center to the sub-center requesting the program content.
- Location information after receiving the location information sent by the dispatching center, the sub-center requesting the program content obtains the program content from the sub-center corresponding to the location information, stores and plays to the terminal.
- the content can be played to the terminal, including the program content uploaded to the local sub-center, the program content of other sub-centers backed up, the popular content obtained from other sub-centers, and the programs acquired from other sub-centers according to the location information sent by the dispatch center.
- the popular content obtained from other sub-centers is the content of the program passively acquired by each sub-center according to the instructions of the dispatching center. In actual operation, in order to ensure sufficient redundant storage space in the sub-center, the sub-centers may be deleted from other sub-centers. Get popular content.
- FIG. 4 is a schematic structural diagram of a system for processing program content according to an embodiment of the present invention, where the system is a content distribution network system, including a dispatch center 401 and a plurality of sub-centers 402;
- the sub-center 402 is configured to store program content uploaded by another sub-center to the local sub-center, and receive a backup instruction sent by the dispatching center, where the backup instruction includes a backup destination address, and the program stored by the backup instruction according to the backup instruction The content is backed up to a sub-center corresponding to the destination address;
- the dispatching center 401 is configured to monitor all sub-centers, store description information of all sub-centers, determine sub-centers that can be backed up, and send backup instructions to each sub-center to store backups in the sub-center that actively performs backup. Correspondence between the indication information of the program content and the sub-center that passively performs the backup. Of course, the system also includes multiple sub-edges of the sub-center subordinates.
- the scheduling center 401 includes a monitoring module 411 and a backup instruction issuing module 412.
- the monitoring module 411 is configured to monitor all sub-center conditions, store description information of all sub-centers, and determine that the sub-center can be backed up.
- the sub-center sends a backup instruction to the backup instruction issuing module, where the backup instruction includes the backup destination address;
- the backup instruction issuing module 412 is configured to receive the backup instruction, deliver the corresponding sub-center, and store the indication information of the program content in the sub-center actively performing backup and the sub-center that is passively backed up. Correspondence.
- the sub-center 402 includes a storage module 421 and a backup module 422.
- the storage module 421 is configured to store program content uploaded to a local sub-center.
- the backup module 422 is configured to receive a backup instruction sent by the scheduling center, and back up the content of the stored program to the sub-center corresponding to the destination address included in the backup instruction.
- the scheduling center 401 includes a program acquisition instruction delivery module 413, and the sub-center 402 includes a program content acquisition module 423;
- the program acquisition instruction issuance module 413 is configured to evaluate program content stored in each sub-center, and if it is hot content, send an acquisition instruction to the program content acquisition module of the other sub-center.
- the obtaining instruction includes an address of the sub-center where the hot content is located and indication information of the hot content; the program content obtaining module 423 is configured to receive an obtaining instruction sent by the sending module of the program obtaining instruction, to the sub-center where the hot content is located Get the hot content and store it.
- the description information includes indication information of the program content stored in each sub-center, the sub-center 402 includes a program content requesting module 424, and the scheduling center 401 includes a program request feedback module 414;
- the program content requesting module 424 is configured to receive a program request sent by the terminal through the sub-edge, where the request includes indication information of the program content selected by the user, and the program content requesting module 424 determines that the sub-center does not store the program selected by the user. And sending the program request to the program request feedback module 414, receiving the location information fed back by the program request feedback module 414, obtaining the program content to the sub-center corresponding to the location information, storing and playing to the terminal;
- the program request feedback module 414 is configured to receive the program request sent by the program content requesting module 424, and search for the sub-center where the program content selected by the user is located in the indication information of the program content stored in each sub-center stored in the dispatching center 402. The location content information of the sub-center where the program content selected by the user is found is fed back to the program content requesting module 424.
- the solution of the embodiment of the present invention can be applied to a video on demand service in a two-way digital television, and can also be applied to a telecom video on demand service.
- each sub-center stores program content uploaded to the local sub-center, and the dispatch center monitors all sub-centers, and uses the remaining storage space in the sub-center to back up the program content uploaded to the local sub-center to other
- the sub-center adopts the program content processing scheme of the embodiment of the present invention, which eliminates the need to set a center for storing all program content and all the backed program content, thereby saving storage cost; and, the program content of one sub-center can be backed up to at least one or more
- the other sub-centers when a content collapses in a sub-center, can get the backup program content to other sub-centers, thus dispersing the risk, and there is no problem of losing the program content of all sub-center backups, reducing the cause The impact of a crash on the loss of program content.
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Description
节目内容处理的方法、 系统及设备
本申请要求于 2009 年 1 月 20 日提交中国专利局、 申请号为 200910077231.1、 发明名称为"节目内容处理的方法、 系统及设备"的中国专利 申请的优先权， 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及视频点播技术， 尤其涉及视频点播业务中节目内容处理的方 法、 系统及设备， 所述设备包括节目内容调度中心和节目内容子中心。
背景技术
双向数字电视互动业务中的视频点播业务， 改变了传统的 "你播我看"模 式， 以前看电视， 是用户等节目， 电视台播什么， 用户就得看什么， 要是有喜 欢的节目， 就得等着电视台播放才能观看。 视频点播业务将电影、 电视剧、 专 栏节目、热门音乐、精彩赛事 ......等丰富多彩的节目内容，分类结集在服务器， 采用"我点你播"的模式， 用户想看什么， 服务器就给用户播放什么节目内容。
节目内容通过内容发布网播放给用户，内容发布网中包括至少三个级别的 服务器群组，为中心、子中心和子边缘等。中心包括中心存储区和中心备份区， 中心存储区内存储了所有的节目内容，中心备份区备份了中心存储区内的所有 节目内容。 所述所有节目内容包括热门内容和冷门内容， 例如， 热门内容占 20 % , 冷门内容占 80 % , 所谓热门内容， 也就是用户收看率高的节目内容， 是所有节目内容中最新、 最好的节目内容， 所谓冷门内容， 也就是用户收看率 低的节目内容。中心对所有的节目内容进行评估，评估出热门内容和冷门内容， 将热门内容下发到各个子中心， 各个子中心下属有多个子边缘， 子中心再将热 门内容中收看率相对较高的节目内容下发给各个子边缘。终端向距离其最近的 子边缘请求服务以获得需要的节目内容， 所述终端可以是双向数字电视。如图 1所示， 为现有技术中内容发布网的结构示意图， 图中， 假设该内容发布网有 N个子中心， 图中示出了子中心一下属的 N个子边缘。
用户收看节目内容时，通过终端向距离其最近的子边缘发送节目请求， 该 节目请求中包括用户选择的节目内容的指示信息， 子边缘接收该节目请求后， 在自身的存储空间查找是否存储有用户选择的节目内容，如果有则将该内容播 放给终端；
如果没有， 则向该子边缘的上一级子中心发送该节目请求， 子中心接收该 节目请求后， 在该子中心自身的存储空间查找是否存储有用户选择的节目内 容，如果有则将该节目内容下发给该子边缘， 该子边缘再将该节目内容播放给 终端； 如果子中心在其存储空间没有找到该节目内容， 则向中心发送该节目请 求， 中心接收该节目请求后， 在其中心存储区查找出该节目内容， 下发给子中 心， 子中心存储该节目内容， 并通过子边缘播放给终端。
现有的内容发布网络中设置了中心，中心的中心存储区内存储了所有的节 目内容， 并在中心备份区备份了所有的节目内容。 随着双向数字电视互动业务 的深入， 中心存储的节目内容将不断增加， 中心存储区和中心备份区将不断地 扩大容量， 这将增加中心的成本； 并且， 存在崩溃的风险， 当中心的存储发生 崩溃时， 将丟失所有的节目内容， 节目内容的丟失对运营将造成承重的打击。 发明内容
本发明实施例提供一种节目内容处理的方法、 系统及设备， 以降低节目内 容存储成本。
为此， 本发明实施例提供如下技术方案：
一种节目内容处理的方法， 该方法包括：
调度中心监控所有子中心状况， 存储对所有子中心的描述信息， 确定可以 备份的目的子中心并向源子中心发送备份指令，以使所述源子中心将自身存储 的节目内容备份到与备份指令中包含的目的地址对应的目的子中心；
调度中心存储所述源子中心进行备份的节目内容的指示信息与目的子中 心之间的对应关系。
一种节目内容处理的系统， 包括调度中心和多个子中心；
所述子中心， 用于存储上传给本地子中心的节目内容， 接收调度中心发送 的备份指令， 所述备份指令中包含备份的目的地址， 子中心将自身存储的节目 内容备份到所述目的地址对应的子中心；
所述调度中心， 用于对所有子中心状况的监控， 存储对所有子中心的描述 信息，确定可以备份的子中心并向各个子中心发送备份指令，存储主动进行备 份的子中心内进行备份的节目内容的指示信息与被动进行备份的子中心之间 的对应关系。
一种节目内容调度中心， 包括监控模块和备份指令下发模块； 所述监控模块， 用于对所有子中心状况进行监控， 存储对所有子中心的描 述信息，确定可以备份的子中心并向所述备份指令下发模块发送备份指令， 所 述备份指令中包含备份的目的地址；
所述备份指令下发模块， 用于接收所述备份指令， 下发给子中心， 并存储 主动进行备份的子中心内进行备份的节目内容的指示信息与被动进行备份的 子中心之间的对应关系。
一种节目内容子中心， 包括存储模块和备份模块，
所述存储模块， 用于存储上传给本地子中心的节目内容，
所述备份模块， 用于接收调度中心发送的备份指令， 将自身存储的节目内 容备份到与备份指令中包含的目的地址对应的子中心。
从上述方案可以看出， 本发明实施例中，每个子中心存储上传给本地子中 心的节目内容， 并且， 调度中心对所有子中心状况进行监控， 将上传给本地子 中心的节目内容备份到其他子中心。采用本发明提供的节目内容处理方案， 无 需再设置存储所有节目内容和所有备份的节目内容的中心，从而节省了存储成 本。
附图说明
图 1为现有技术中内容发布网络的结构示意图；
图 2为本发明实施例中节目内容处理的方法示意性流程图；
图 3为本发明实施例中内容发布网络的结构示意图实例；
图 4为本发明实施例中节目内容处理的系统结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白， 下面结合实施例和附 图， 对本发明进一步详细说明。
实际运用中，每个子中心的存储空间足够大， 除了能够为规定数量的终端 提供点播服务外，还有部分剩余。 本发明实施例利用各个子中心内存储空间的 剩余， 对其他子中心的节目内容进行备份存储， 这样， 在内容发布网络中不再 设置存储所有节目内容和所有备份节目内容的中心， 节省了存储资源。
具体地， 本发明实施例在内容发布网络中增加调度中心， 参见图 2, 为本
发明实施例节目内容处理的方法示例性流程图， 包括以下步骤：
步骤 201 , 每个子中心存储上传给本地子中心的节目内容。
本地控制设备可根据实际需要向其所在的子中心上传节目内容，该节目内 容可以包括当前的热门内容。 例如， 对于深圳地区的子中心， 可接收并存储上 传给深圳地区子中心的节目内容。
步骤 202, 调度中心对所有子中心状况进行监控， 存储对所有子中心的描 述信息，确定可以备份的子中心并向各个子中心发送备份指令， 所述备份指令 中包含备份的目的地址。
调度中心对所有子中心状况进行监控，获取并存储对所有子中心的描述信 息， 包括各个子中心存储空间的剩余状况、 各个子中心之间的距离、 各子中心 内所存储节目内容的指示信息、各个子中心覆盖范围内用户对节目内容的点击 率， 等等。
需要说明的是， 所述各个子中心存储空间可以只针对各个子中心自身而 言； 也可以针对各个子中心以及该子中心下属的子边缘而言， 也就是， 如果某 子中心下属的子边缘存储空间有足够的剩余，则可以将该子边缘的剩余存储空 间认为是该子中心的剩余存储空间。 并且，调度中心根据各子中心内存储节目 内容的指示信息， 生成节目表， 该节目表包含所有子中心内的所有节目内容的 指示信息； 然后，调度中心通过各个子中心将节目表下发到各个子中心下属的 子边缘， 子边缘通过终端将节目表展示给用户， 用户从节目表中选择关于某个 节目内容的指示信息；终端根据用户的选择向子边缘发送节目请求以获取节目 内容， 所述节目请求包括用户选择的节目内容的指示信息。 另外， 调度中心还 对下发到各个子边缘的节目表实时进行更新。
本步骤中，调度中心根据对所有子中心的描述信息，确定出各个子中心之 间的备份关系， 向各个子中心下发备份指令， 所述备份指令包含备份的目的地 址。 例如， 调度中心根据各个子中心存储空间的剩余状况下发备份指令， 具体 地，如果某子中心内的存储空间有足够多的剩余， 该剩余存储空间除了能够保 证该子中心用于存储上传给本地子中心的节目内容，以及保证该子中心的活动 空间外，还有冗余的存储空间， 则调度中心向其他指定的至少一个子中心下发 备份指令，将所述指定的至少一个子中心的节目内容备份到该子中心冗余的存
储空间， 备份后， 调度中心存储进行备份的子中心之间的对应关系。 再比如， 为了进一步优化对子中心内节目内容的备份，调度中心根据各个子中心存储空 间的剩余状况和各个子中心之间的距离进行备份指令的下发， 具体地，如果调 度中心发现某子中心内的存储空间有足够多的剩余，则向与该子中心邻近的子 中心发送备份指令， 使与该子中心邻近的子中心将节目内容备份到该子中心， 备份后， 调度中心存储进行备份的子中心之间的对应关系， 这样， 当需要时可 方便地从邻近的子中心获取备份的节目内容。
这里，将进行备份的两个子中心分别称为源子中心和目的子中心， 其中将 与备份指令中包含的目的地址相对应的子中心称为目的子中心，将另一个子中 心称为源子中心， 源子中心为主动进行备份的子中心， 目的子中心为被动进行 备份的子中心。所述子中心之间的对应关系包括源子中心内进行备份的节目内 容的指示信息与目的子中心之间的对应关系。具体地， 所述子中心之间的对应 关系不仅包括源子中心的地址与目的子中心的地址之间的对应关系，还包括该 源子中心的地址与进行备份的节目内容的指示信息之间的对应关系。这样，将 进行备份的子中心之间的对应关系存储在调度中心后，当某个子中心内的节目 内容发现崩溃时，可根据调度中心存储的所述子中心之间的对应关系在相应的 目的子中心获取备份的节目内容； 需要说明的是， 一个子中心内存储的节目内 容可能分为几份， 分别备份到两个以上的子中心， 此时， 根据所述子中心的对 应关系， 需要到两个以上的子中心获取备份的节目内容。
步骤 203 , 各个子中心将自身存储的节目内容备份到与备份指令中包含的 目的地址相对应的子中心。
在最初建立子中心的时候需要对上传给各个子中心的节目内容按照图 2 流程进行备份， 建立子中心之后， 也需要对上传给各个子中心的节目内容按照 图 2流程进行备份。
备份过程中， 源子中心将自身存储的节目内容逐一拷贝到目的子中心，拷 贝过程中， 如果判断出目的子中心已经存储了某一节目内容， 为了节省存储空 间， 则不将该节目内容拷贝到目的子中心。
本发明实施例在内容发布网中增加调度中心，调度中心对所有子中心状况 进行监控，使各子中心将上传给本地子中心的节目内容备份到其他子中心， 本
发明实施例采用与现有不同的节目内容存储方案，无需再设置存储所有节目内 容和所有备份的节目内容的中心，并且，调度中心存储所有子中心的描述信息， 其存储容量远远小于现有技术中中心的存储容量， 从而降低了内容存储的成 本。
参见图 3 , 为本发明实施例内容发布网的结构示意图实例， 与现有技术不 同的是， 内容发布网中增加了调度中心，而不再设置中心，与现有技术相同地， 每个子中心下属有多个子边缘。 图中的箭头指向为节目内容的备份方向， 子中 心之间可互为备份。
进一步地， 为了使各个子中心内存储的热门节目内容可以共享， 调度中心 还对各个子中心内存储的节目内容进行评估，如果为热门内容， 则向其他子中 心发送获取指令，该获取指令中包含该热门内容所在子中心的地址以及该热门 内容的指示信息； 其他子中心接收该获取指令后， 到该热门内容所在子中心获 取该热门内容， 并存储。
可选地， 所述评估可依据节目内容的特点进行， 例如， 若某部电影是张艺 谋导演的， 则将该电影评估为热门内容； 所述评估也可依据用户对该节目内容 的点击率进行， 将用户点击率高的节目内容评估为热门内容。
进一步地， 本发明实施例的节目内容处理方案还包括节目内容的发布过 程： 终端向子边缘发送节目请求， 子边缘接收该节目请求后， 在自身的存储空 间查找是否存储有用户选择的节目内容， 如果有则将该内容播放给终端；
如果没有， 则向该子边缘的上一级子中心发送该节目请求， 该节目请求中 包含用户选择的节目内容的指示信息， 子中心接收该节目请求后，在子中心的 存储空间查找是否存储有用户选择的节目内容，如果有则将该内容下发给该子 边缘， 子边缘再将该内容播放给终端； 如果子中心在其存储空间没有找到该节 目内容， 则向调度中心发送该节目请求， 调度中心接收该节目请求后， 在自身 存储的各子中心内所存储节目内容的指示信息中查找用户选择的节目内容所 在的子中心， 向请求节目内容的子中心反馈查找到的子中心的位置信息；请求 节目内容的子中心接收调度中心发送的位置信息后，到该位置信息对应的子中 心获取该节目内容， 存储并播放给终端。
需要说明的是， 在节目内容的发布过程中， 每个子中心内存储的所有节目
内容都可播放给终端， 包括上传给本地子中心的节目内容、备份的其他子中心 的节目内容、从其他子中心获取的热门内容， 以及根据调度中心发送的位置信 息从其他子中心获取的节目内容。从其他子中心获取的热门内容， 为各个子中 心根据调度中心的指令被动获取的节目内容，在实际运用中， 为了保证子中心 内有足够的冗余的存储空间， 还可删除从其他子中心获取的热门内容。
参见图 4, 为本发明实施例节目内容处理的系统结构示意图， 该系统也就 是内容发布网络系统， 包括调度中心 401和多个子中心 402;
所述子中心 402, 用于存储其他子中心上传给本地子中心的节目内容， 接 收调度中心发送的备份指令， 所述备份指令中包含备份的目的地址，根据所述 备份指令将自身存储的节目内容备份到所述目的地址对应的子中心；
所述调度中心 401 , 用于对所有子中心状况进行监控， 存储对所有子中心 的描述信息，确定可以备份的子中心并向各个子中心发送备份指令，存储主动 进行备份的子中心内进行备份的节目内容的指示信息与被动进行备份的子中 心之间的对应关系。 当然， 该系统还包括子中心下属的多个子边缘。
可选地， 所述调度中心 401包括监控模块 411和备份指令下发模块 412; 所述监控模块 411 , 用于对所有子中心状况进行监控， 存储对所有子中心 的描述信息，确定可以备份的子中心并向备份指令下发模块发送备份指令， 所 述备份指令中包含备份的目的地址；
所述备份指令下发模块 412,用于接收所述备份指令，下发相应的子中心， 并存储主动进行备份的子中心内进行备份的节目内容的指示信息与被动进行 备份的子中心之间的对应关系。
可选地， 所述子中心 402包括存储模块 421和备份模块 422,
所述存储模块 421 , 用于存储上传给本地子中心的节目内容，
所述备份模块 422 , 用于接收调度中心发送的备份指令， 将自身存储的节 目内容备份到与备份指令中包含的目的地址对应的子中心。
可选地， 所述调度中心 401包括节目获取指令下发模块 413 , 所述子中心 402包括节目内容获取模块 423 ;
所述节目获取指令下发模块 413 , 用于对各个子中心内存储的节目内容进 行评估，如果为热门内容，则向其他子中心的节目内容获取模块发送获取指令，
该获取指令中包含该热门内容所在子中心的地址以及该热门内容的指示信息； 所述节目内容获取模块 423 , 用于接收节目获取指令下发模块发送的获取 指令， 到该热门内容所在子中心获取该热门内容， 并存储。
可选地， 所述描述信息包括各子中心内所存储节目内容的指示信息， 所述 子中心 402包括节目内容请求模块 424 , 所述调度中心 401包括节目请求反馈 模块 414;
所述节目内容请求模块 424 , 用于接收终端通过子边缘发送的节目请求， 该请求中包含用户选择的节目内容的指示信息，该节目内容请求模块 424判断 出子中心没有存储用户选择的该节目内容，则向节目请求反馈模块 414发送该 节目请求，接收节目请求反馈模块 414反馈的位置信息， 到该位置信息对应的 子中心获取该节目内容， 存储并播放给终端；
所述节目请求反馈模块 414, 用于接收节目内容请求模块 424发送的节目 请求，在调度中心 402存储的各子中心内所存储节目内容的指示信息中查找用 户选择的节目内容所在的子中心，向所述节目内容请求模块 424反馈查找到的 用户选择的节目内容所在子中心的位置信息。
本发明实施例的方案可以运用于双向数字电视中的视频点播业务，也可运 用于电信视频点播业务等。
本发明实施例中， 每个子中心存储上传给本地子中心的节目内容， 并且， 调度中心对所有子中心进行监控，利用子中心内存储空间的剩余将上传给本地 子中心的节目内容备份到其他子中心， 采用本发明实施例的节目内容处理方 案， 无需再设置存储所有节目内容和所有备份的节目内容的中心， 节省了存储 成本； 并且， 可将一个子中心的节目内容备份到至少一个以上的其他子中心， 当一个子中心出现内容崩溃时，可以到其他子中心获取备份的节目内容，这样， 分散了风险， 不会出现丟失所有子中心的备份的节目内容的问题， 减小了因发 生崩溃对节目内容的丟失带来的影响。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进 一步详细说明， 所应理解的是， 以上所述仅为本发明的具体实施例而已， 并不 用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。
Claims
1、 一种节目内容处理的方法， 其特征在于， 该方法包括：
调度中心监控所有子中心状况， 存储对所有子中心的描述信息， 确定可以 备份的目的子中心并向源子中心发送备份指令，以使所述源子中心将自身存储 的节目内容备份到与备份指令中包含的目的地址对应的目的子中心；
调度中心存储所述源子中心进行备份的节目内容的指示信息与目的子中 心之间的对应关系。
2、 如权利要求 1所述的方法， 其特征在于， 所述方法还包括：
每个子中心存储上传给本地子中心的节目内容。
3、 如权利要求 1所述的方法， 其特征在于， 所述调度中心向源子中心发 送备份指令包括：
所述调度中心根据各个子中心存储空间的剩余状况向源子中心发送所述 备份指令；所述各个子中心存储空间的剩余状况为各个子中心自身存储空间的 剩余状况， 或者， 为各个子中心自身存储空间的剩余状况以及各个子中心下属 的子边缘存储空间的剩余状况；
或者，所述调度中心根据各个子中心存储空间的剩余状况以及子中心之间 的距离向源子中心发送所述备份指令。
4、 如权利要求 1所述的方法， 其特征在于， 所述描述信息包括各子中心 内所存储节目内容的指示信息； 所述方法还包括：
所述收到备份指令的源子中心将自身存储的节目内容备份到与备份指令 中包含的目的地址对应的目的子中心。
5、 如权利要求 1所述的方法， 其特征在于， 所述方法还包括：
子中心接收终端通过子边缘发送的节目请求，该节目请求中包含用户选择 的节目内容的指示信息；
所述子中心在自身存储的节目内容中查找是否存储有用户选择的节目内 容， 如果没有， 则向调度中心发送该节目请求， 并接收所述调度中心发送的查 找到的子中心的位置信息；
所述子中心接收调度中心发送的位置信息后，到该位置信息对应的子中心 获取该节目内容， 存储并播放给所述终端。
6、 如权利要求 5所述的方法， 其特征在于， 所述方法还包括： 所述调度中心接收子中心发送的节目请求后，在自身存储的各子中心内所 存储节目内容的指示信息中查找用户选择的节目内容所在的子中心，向请求节 目内容的子中心发送查找到的子中心的位置信息。
7、 如权利要求 1至 6中任一项所述的方法， 其特征在于， 该方法包括： 如果所述源子中心存储的节目内容发生崩溃，则所述源子中心根据所述对 应关系， 到对应的目的子中心获取备份的节目内容。
8、 一种节目内容调度中心， 其特征在于， 包括监控模块和备份指令下发 模块；
所述监控模块， 用于对所有子中心状况进行监控， 存储对所有子中心的描 述信息，确定可以备份的子中心并向所述备份指令下发模块发送备份指令， 所 述备份指令中包含备份的目的地址；
所述备份指令下发模块， 用于接收所述备份指令， 下发给子中心， 并存储 主动进行备份的子中心内进行备份的节目内容的指示信息与被动进行备份的 子中心之间的对应关系。
9、 如权利要求 8所述的节目内容调度中心， 其特征在于， 所述节目内容 调度中心还包括：
节目获取指令下发模块， 用于对各个子中心内存储的节目内容进行评估， 如果为热门内容， 则向其他子中心发送获取指令， 该获取指令中包含该热门内 容所在子中心的地址以及该热门内容的指示信息。
10、 如权利要求 8或 9所述的节目内容调度中心， 其特征在于， 所述描述 信息包括各子中心内所存储节目内容的指示信息；
所述节目内容调度中心还包括：
节目请求反馈模块， 用于接收子中心发送的节目请求， 并在所述备份指令 下发模块存储的各子中心内所存储节目内容的指示信息中查找用户选择的节 目内容所在的子中心，向请求节目内容的子中心反馈查找到的子中心的位置信 息。
11、 一种节目内容子中心， 其特征在于， 包括存储模块和备份模块， 所述存储模块， 用于存储上传给本地子中心的节目内容，
所述备份模块， 用于接收调度中心发送的备份指令， 将自身存储的节目内 容备份到与备份指令中包含的目的地址对应的子中心。
12、 如权利要求 11所述的节目内容子中心， 其特征在于， 所述节目内容 子中心还包括：
节目内容获取模块， 用于接收所述调度中心发送的获取指令， 该获取指令 中包含该热门内容所在子中心的地址以及该热门内容的指示信息，所述节目内 容获取模块到该热门内容所在子中心获取该热门内容， 并存储。
13、 如权利要求 11或 12所述的节目内容子中心， 其特征在于， 所述节目 内容子中心还包括：
节目内容请求模块， 用于接收终端通过子边缘发送的节目请求， 并根据该 节目请求中包含的用户选择的节目内容的指示信息，判断出子中心没有存储用 户选择的该节目内容， 向所述调度中心发送该节目请求，接收所述调度中心反 馈的位置信息， 到该位置信息对应的子中心获取该节目内容，存储并播放给终 端。
14、一种节目内容处理的系统，其特征在于， 包括调度中心和多个子中心； 所述子中心， 用于存储上传给本地子中心的节目内容， 接收调度中心发送 的备份指令， 所述备份指令中包含备份的目的地址， 子中心将自身存储的节目 内容备份到所述目的地址对应的子中心；
所述调度中心， 用于对所有子中心状况的监控， 存储对所有子中心的描述 信息，确定可以备份的子中心并向各个子中心发送备份指令，存储主动进行备 份的子中心内进行备份的节目内容的指示信息与被动进行备份的子中心之间 的对应关系。
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| CN2009100772311A CN101489108B (zh) | 2009-01-20 | 2009-01-20 | 节目内容处理的方法、系统及设备 |
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| CN102195986A (zh) * | 2011-05-19 | 2011-09-21 | 南京中兴新软件有限责任公司 | 一种基于内容分发网络的数据处理方法及装置 |
| CN105357193A (zh) * | 2015-10-30 | 2016-02-24 | 深圳云聚汇数码有限公司 | 数据防爆破的存储方法 |
| CN111629226A (zh) * | 2020-05-15 | 2020-09-04 | 上海幕革科技有限公司 | 一种基于中心存储的数据处理设备及其处理方法 |
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| CN1476197A (zh) * | 2003-07-18 | 2004-02-18 | 迪 邓 | 一种在互联网上实现大规模在线视音频播放的方法 |
| CN1545275A (zh) * | 2003-11-21 | 2004-11-10 | 清华大学深圳研究生院 | 基于Netfilter架构的流媒体集群服务内容调度方法 |
| CN1816053A (zh) * | 2006-03-10 | 2006-08-09 | 清华大学 | 基于会话初始化协议的流媒体直播p2p网络方法 |
| US20070250887A1 (en) * | 2006-03-21 | 2007-10-25 | Yi-Liang Ting | Integrated broadcasting system for digital broadcasting programs |
| CN101094107A (zh) * | 2006-06-21 | 2007-12-26 | 北京网视天元信息技术有限公司 | 视听节目p2p流媒体网络传播效果精确测量的系统及方法 |
| CN101489108A (zh) * | 2009-01-20 | 2009-07-22 | 深圳市同洲电子股份有限公司 | 节目内容处理的方法、系统及设备 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1476197A (zh) * | 2003-07-18 | 2004-02-18 | 迪 邓 | 一种在互联网上实现大规模在线视音频播放的方法 |
| CN1545275A (zh) * | 2003-11-21 | 2004-11-10 | 清华大学深圳研究生院 | 基于Netfilter架构的流媒体集群服务内容调度方法 |
| CN1816053A (zh) * | 2006-03-10 | 2006-08-09 | 清华大学 | 基于会话初始化协议的流媒体直播p2p网络方法 |
| US20070250887A1 (en) * | 2006-03-21 | 2007-10-25 | Yi-Liang Ting | Integrated broadcasting system for digital broadcasting programs |
| CN101094107A (zh) * | 2006-06-21 | 2007-12-26 | 北京网视天元信息技术有限公司 | 视听节目p2p流媒体网络传播效果精确测量的系统及方法 |
| CN101489108A (zh) * | 2009-01-20 | 2009-07-22 | 深圳市同洲电子股份有限公司 | 节目内容处理的方法、系统及设备 |
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| HK1134194A1 (en) | 2010-04-16 |
| CN101489108B (zh) | 2011-06-15 |
| CN101489108A (zh) | 2009-07-22 |
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