CN101079727A - A media data stream content management method - Google Patents

A media data stream content management method Download PDF

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CN101079727A
CN101079727A CN 200610078410 CN200610078410A CN101079727A CN 101079727 A CN101079727 A CN 101079727A CN 200610078410 CN200610078410 CN 200610078410 CN 200610078410 A CN200610078410 A CN 200610078410A CN 101079727 A CN101079727 A CN 101079727A
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content
streaming media
media data
heat
time
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CN 200610078410
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CN100518088C (en
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沈灿
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中兴通讯股份有限公司
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Abstract

The invention discloses a managing method of flow media data content, which is characterized by the following: managing the flow media data content on the rim buffer equipment; detecting the heat degree of the flow media data content; recording the knocking number of the managed data file within the present detecting time segment; obtaining the heat degree of the data file within front time segment as the initiating value of the heat degree; calculating the knocking number and the initiating value to obtain the present heat degree. The invention provides the high-effective judgment evidence for higher layer content buffer, which can utilize the system resource to the most degree.

Description

一种流媒体数据内容管理方法 A media data stream content management method

技术领域 FIELD

本发明涉及一种数据内容管理方法,尤其涉及一种流媒体数据内容管理方法。 The present invention relates to a data content management method, particularly to a content management method for streaming media data.

背景技术 Background technique

传统网络上承载的内容以网页为主。 Content carried on a conventional network-based web page. 通常,服务器端根据网站的容量需求,布置合适的网络服务器和存储设备,不同的网络用户访问该网站,下载相关网页。 Typically, the server-side capacity requirements based on site, arrangement of appropriate network servers and storage devices, different network users visit the site, download the relevant pages. 随着互联网上用户的不断增加,网站的访问量也随之剧增,这样就使得网站的网络设备和存储设备不堪重负。 With the increase of Internet users, the site's traffic increase sharply, thus making the site's network and storage devices overwhelmed. 对此,各厂商采用服务器镜像技术,在用户相对集中的地方放上缓存设备,作为对原始服务器的镜像服务器,用户访问原来的服务器时,被网络重新定向到离用户最近的镜像服务器,从而提高了网络用户的访问质量和访问速度。 In this regard, the manufacturers using server mirroring technology, put the device in the user cache relatively concentrated, as a mirror of the original server, users access the original server, the network is redirected to mirror server closest to the user, thereby enhancing access to quality and access speed network users.

近年来,基础网络的高速发展促进了网络业务的发展,互联网上出现了各种多媒体业务,其中以流媒体业务的发展最为迅速。 In recent years, the rapid development of infrastructure network to promote the development of network services, the emergence of a variety of multimedia services on the Internet, which developed most rapidly streaming service. 流媒体业务是以提供内容为主的业务,内容需要分类,以决定存放的时间长度及存放的地点,因此在流媒体业务中对内容的管理尤为重要。 Streaming media business is to provide content business, content need to be classified, in order to determine the length of storage time and place of storage, the management of the content is particularly important in the streaming media business. 而流媒体在发展过程中也遇到了和传统网站同样的问题,又由于流媒体数据内容的多样化特点,因此需要更多的网络开销和网络存储设备,仅采用服务器镜像的方式远不能满足网络流媒体的应用。 The streaming media in the development process also encountered the same problem and the traditional sites, but also due to the characteristics of a variety of streaming media data content, and therefore require more network overhead and network storage devices, using only server mirroring the way the network can not meet application of streaming media. 由此,一些设备厂商推出专业的内容存储网络设备SAN(Storage Area Network),可是SAN价格昂贵,限制了网络业务的开展。 As a result, a number of equipment manufacturers to launch professional content storage networking equipment SAN (Storage Area Network), SAN but expensive, limiting the conduct of network services.

为解决这个矛盾,目前的通常做法是:互联网用户每次访问边缘缓存设备上的内容时,服务器首先到原始服务器上查询当前的内容是否和服务器上的内容相同,如相同,则将本机上的内容直接提供给用户,用户从而得到较高的服务质量;如本机上的内容比原始服务器旧,本机将向原始服务器请求最新的内容,然后才为用户提供服务,同时缓存最新的内容。 To resolve this contradiction, the current common practice: an Internet user every time the content on the edge caching device access, the server first on the original server to query whether the current content and content on the same server, such as the same, then this machine content directly to users, resulting in higher quality of service; such as content on this machine than the original old server, the server machine will request the latest original content before providing services to users, and caches the latest content . 在内容删除方面,边缘缓存只是执行上级管理器的删除命令,删除指定本机上的内容。 In terms of content deletion, edge caching just delete order from a superior manager, delete the contents on the specified machine.

而当本机的任何内容文件与原始服务器上的内容不同时,边缘缓存需要到原始服务器上将内容取到本机,然后才能为用户提供服务。 When the contents of any of the contents of this file server machine is not the same as the original, edge caching server will need original content to get to the machine before they can provide services for users. 这样,每次用户访问到达时,边缘缓存设备都要做同样的操作,一方面用户得到的服务质量将会降低,另一方面使边缘缓存的开销增大,尤其是中央处理器和硬盘的开销将是该业务开展的瓶颈。 In this way, each time a user accesses arrival, edge caching devices to do the same operation, on the one hand that users get the quality of service will be reduced, on the other hand the edge caching increases the cost, especially the cost of the central processor and hard drive It will be the bottleneck of business development. 本机内容的删除只是被动执行上级设备的删除命令,而不是根据本机内容文件的分布状况,点击率,新鲜度,文件的属性,文件大小等实现自动删除,来自动优化本机内容文件的存储和利用,没有达到边缘缓存的自动优化,从而降低了设备的利用效率,也降低了服务质量。 Delete local content merely passive delete order from a superior device, rather than the distribution of native content file, CTR, freshness, file attributes, file size, automatic deletion to automatically optimize native content file storage and use, does not reach the edge cache is automatically optimized, thereby reducing the utilization efficiency of the apparatus, but also reduces the quality of service.

发明内容 SUMMARY

本发明所要解决的技术问题在于提供一种流媒体数据内容管理方法,以提高传送到终端用户的流媒体数据内容的质量,并在流媒体网络的边缘缓存设备上实现内容的自动管理和更新。 The present invention solves the technical problem is to provide a content management method for streaming media data, to improve the transport to the end user streaming media data content quality, and automatically update and manage content on edge caching streaming media network device.

为解决上述问题,本发明提供一种流媒体数据内容管理方法,在流媒体网络的边缘缓存设备上,根据流媒体数据内容的热度对边缘缓存设备上的流媒体数据内容进行管理,所述流媒体数据内容的热度通过如下步骤检测:(1)记录在当前检测时间段内被管理数据文件的被点击数;(2)获取该数据文件在前一时间段的热度,并将其作为当前时间段热度的初始值;(3)根据所述当前时间段热度的初始值与该数据文件在当前时间段内的被点击数的加权平均值,计算得到该数据文件在当前时间段的热度。 To solve the above problems, the present invention provides a content management method for streaming media data, at the edge caching streaming media network device, according to the heat content of the streaming media data to manage the streaming media data content on the edge caching apparatus, said stream the heat content of the media data is detected by the steps: (1) recording management data file is in the current detection period by the number of clicks; (2) acquiring a first data file of the heat period, and as the current time the initial value of the segment of heat; (3) the weighted average of the data file in the current time period is the number of clicks, the calculated heat data file in the current period based on the current value of the initial period of the heat.

其中,所述流媒体数据内容的检测,是以固定时间间隔Δt进行的。 Wherein the content of the media data flow detection, it is carried out a fixed time interval Δt.

如果是第一次计算热度时,则所述前一时间段的热度值可以由内容提供者自行给出一个初始值。 If the heat is first calculated, the heat value of the previous time period by the content provider may be given an initial value itself.

其中,通过以下公式确定当前热度:热度=(前一时间段的热度×W+当前时间段的点击数/Δt)/(1+W),其中,所述W表示加权系数,可根据情况调节。 Which is determined by the following equation current popularity: heat = (previous time period heat × W + current hits / Δt period) / (1 + W), wherein W represents a weighting coefficient can be adjusted according to the situation.

其中,所述时间段值根据边缘缓存设备的用户日志文件、流媒体数据文件的属性及其他统计数据确定。 Wherein, said time period value according to a user log file edge cache apparatus, the attribute data of the streaming media files and other statistics determined.

其中,所述根据流媒体数据内容的热度对边缘缓存设备上的流媒体数据内容进行管理的步骤,包括:当所述流媒体数据内容的热度上升时,则为该流媒体分配更长的边缘缓存设备存储时间、更多网络带宽及其他资源;当所述流媒体数据内容的热度下降时,则缩短为该流媒体分配的边缘缓存设备存储时间,并减少为其分配的网络带宽及其他资源。 Wherein the content of the streaming data caching on the edge device managing step according to the heat content of the streaming media data, comprising: a heat when the streaming media data content is increased, compared to the longer edges of streaming media distribution cache device storage time, more network bandwidth and other resources; heat when the streaming media data content is decreased, the shorter edge cache memory device for streaming distribution of time and reduce the assigned network bandwidth and other resources .

其中,进一步包括:在流媒体网络的边缘缓存设备上,根据流媒体数据内容的新鲜度对边缘缓存设备上的流媒体数据内容进行管理,包括:当所述流媒体数据内容的新鲜度上升时,则为该流媒体分配更长的边缘缓存设备存储时间、更多网络带宽及其它资源;当所述流媒体数据内容的新鲜度下降时,则缩短为该流媒体分配的边缘缓存设备存储时间,并减少为其分配的网络带宽及其他资源,当所述的新鲜度低于一定的门限时,边缘缓存设备自动删除有关流媒体数据内容。 Wherein, further comprising: at the edge caching of streaming media network devices, manages the streaming media data content on the edge caching apparatus according to the freshness of content streaming media data, comprising: when the stream media content data increase freshness , streaming media distribution, compared with the longer edge caching device storage time, more network bandwidth and other resources; streaming media data when the content is decreased freshness, is shortened for media distribution edge cache device stores time streams and reduce the network bandwidth and other resources assigned to it, the freshness when below a certain threshold, the device automatically deletes the relevant edge caching streaming media data content.

其中,所述流媒体数据内容的新鲜度值为所述时间段值除以检测进行的当时时间与流媒体数据文件创建之时的差值。 When the difference between the time of creation and streaming media data file at the time wherein the content of the streaming media data freshness value by the value of the time period of detection.

本发明所采用的热度计算方法中增加了热度的初始值即为前一个时间段的热度,此值是由内容提供者提供的,在内容还没有点播之前,就能预知其当前的热度。 Heat calculation method adopted in the present invention increases the heat of the heat is the initial value of the previous time period, this value is provided by the content provider, before the contents have not been demand, which can predict the current heat. 采用此算法,能更加准确的反映节目的热度。 Using this algorithm, to more accurately reflect the heat program.

本发明所述的在流媒体网络的边缘缓存设备上,根据边缘缓存设备上内容文件的热度、新鲜度、文件的属性及相关信息、文件大小等,为边缘缓存介质的高效利用和内容缓存的更高层设置提供高效率的判断依据。 On the edge cache streaming media network device, according to the upper edge of the heat content file cache device, freshness, and file attribute information, file size, etc. of the present invention, efficient use of the media and edge caching cached content higher-level settings provide an efficient basis to judge. 从而一方面提高传送到终端用户流媒体数据内容的质量,另一方面节省内容网络投资的成本,达到在内容网络上实现以最小的开销,提供质量最好的媒体内容服务的目的,并在流媒体网络的边缘缓存设备上实现自动管理、内容自动更新以及最大可能的利用系统资源(如边缘缓存的存储设备、中央处理器、网络带宽等)。 Transferred to the end user on the one hand to improve the quality of content streaming media data, on the other hand the content of network investment cost, to achieve with minimal overhead, the purpose of providing the best quality of the media content on the content network and services, and stream automatic management edge caching network media device, and automatically update the contents of the maximum possible use of system resources (e.g., edge cache storage device, CPU, network bandwidth, etc.).

附图说明 BRIEF DESCRIPTION

图1是根据本发明实施例所述的流媒体数据内容用户访问走势图;图2是根据本发明实施例所述的确定流媒体数据内容热度的流程示意图;图3是根据本发明实施例所述的确定流媒体数据内容新鲜度的流程示意图。 FIG 1 is a streaming media content data described in the user access Chart embodiment according to the present invention; FIG. 2 is a flow chart to determine the heat content streaming media data according to the embodiment of the present invention; FIG. 3 is a diagram of the embodiment of the present invention determining said data content schematic flow freshness media stream.

具体实施方式 Detailed ways

在流媒体网络的边缘缓存设备上,根据流媒体数据内容的热度、新鲜度、文件的属性、文件的大小等对该设备上的流媒体数据内容进行自动管理、删除和更新,达到边缘缓存的自动优化。 On the edge cache streaming media network device, according to the heat content of the streaming media data, freshness, file attributes, file size or the like of the streaming media data content on the device to automatically manage, update, and delete, reach the edge cache automatic optimization.

参考图1,为本发明实施例所述的流媒体数据内容用户访问走势图,其纵轴显示用户点击数,横轴显示时间。 Referring to FIG 1, a user accessing streaming media content data described in the charts embodiment of the present invention, which displays the user clicks the longitudinal axis, the horizontal axis shows time. 流媒体文件从放到边缘缓存设备上开始,访问该文件的单位时间内的用户数就会逐渐增加,在一定时间后将会达到峰值,然后访问用户数就会下降。 Streaming media file starts from the upper edge into the cache device, the number of users to access the file in unit time will be increased gradually, after a certain time will reach a peak, then the access number will drop. 而流媒体数据内容热度则具体体现为单位时间内使用该内容的用户数,热度值越大表明该内容越受用户欢迎,因而在边缘缓存上保存的价值就越大。 The popularity of streaming media content data is embodied as a number of users use the content per unit of time, the greater the heat value indicates that the content of the more popular with users, thus saving on the edge cache value will be. ΔT是指,从媒体文件在边缘缓存设备开始创建之时到用户点击率趋于0时的合理存在时间,可以采用概率统计方法获得。 ΔT means, from the media files to the user hits rationalize the existence of time is 0:00 in the creation of edge caching device starts, probability and statistics obtained can be used. 而定时间隔Δt的取值是根据不同的媒体文件属性(如新闻、电视剧、教育片、电影)取不同的值,可以提供给用户选择,也可以采用概率统计方法获得。 The timing interval Δt values ​​are different values ​​depending on the media file properties (such as news, drama, education, movies), can be provided to the user to select, probability and statistics obtained may be used.

参考图2,为本发明实施例所述的确定流媒体数据内容热度的流程示意图。 Referring to Figure 2, a schematic flowchart of streaming media data content is determined according to the popularity of the embodiment of the present invention. 从流媒体数据文件创建之时起,以定时间隔Δt循环对热度进行检测,检测进行的当前时间t与流媒体数据文件创建时间的差值大于流媒体热度的合理存在时间段值ΔT时,设定相应的热度值为0,将该流媒体数据文件从边缘缓存的存储设备上删除。 From the time of creation from the streaming media data file, at timed intervals of Δt heat cycle is detected, the current detection time t when the presence of a reasonable time period value ΔT is greater than the difference of the heat medium flow and creation time streaming media data file, provided heat set the corresponding value is 0, the streaming media data file is deleted from the edge cache storage device. 对于热度的计算,则要考虑到初始的热度值即前一个时间段的热度,热度应当是前N个时间段的点击数的加权平均值,参见下式:热度=(前一时间段的热度×W+当前时间段的点击数/Δt)/(1+W)其中,W表示加权系数,是可以调节的,一般取0.5。 For the calculation of the heat, we will have to take into account the initial temperature of the heat value of a period prior i.e., heat should be a weighted average of the number of clicks of the first N time periods, see the following formula: = heat (heat of previous time period current hits × W + / Δt) / (1 + W) period wherein, W represents a weighting factor, is adjustable, and generally 0.5. 如果是第一次计算热度,则前一时间段的热度值可以由内容提供者给出。 If the heat is first calculated, the heat value of the previous period of time may be given by a content provider.

确定流媒体数据内容热度的具体过程为:步骤201:启动热度计算定时器;步骤202:判断定时时间是否已到,若是,进入步骤203,若不是,则重新判断,直至定时时间到为止;步骤203:读取系统当前时间t;步骤204:判断t与文件创建时间的差值是否大于ΔT,若是,进入步骤205,若不是,进入步骤206;步骤205:该文件的热度为0;步骤206:读取该文件在t-Δt~t这个时间段的日志文件;步骤207:计算该文件的热度值。 Determining the specific process heat content of streaming media data is: Step 201: Start a timer calculating heat; Step 202: determining whether the alarm time is reached, if so, proceeds to step 203, if not, re-determination, until the time up to the timing; a step 203: reading the current time t; step 204: determining whether the file creation time t and the difference is greater than [Delta] T, and if yes, proceeds to step 205, if not, proceeds to step 206; step 205: the heat of the file is 0; step 206 : read the file t-Δt ~ t this time log file; step 207: calculating heat value of the file.

参考图3,为本发明实施例所述的确定流媒体数据内容新鲜度的流程示意图。 Referring to Figure 3, a schematic flow streaming media data content is determined according to the freshness of the embodiment of the present invention. 从流媒体数据文件创建之时起,以定时间隔Δt循环对新鲜度进行检测,检测进行的当前时间t与流媒体数据文件的创建时间t1的差值大于新鲜度的合理存在时间段值ΔT时,设定相应的新鲜度值为0,将该流媒体数据文件从边缘缓存的存储设备上删除。 From time to time to create the streaming media data from a file, at timed intervals Δt cycle of freshness detection, a current detection time t of the difference streaming media data file creation time t1 of the presence of greater than a reasonable time period value ΔT freshness set corresponding freshness value 0, the streaming media data file is deleted from the edge cache storage device. 而流媒体数据内容的新鲜度值为合理存在时间段值ΔT除以检测进行的当时时间与流媒体数据文件创建之时的差值,参见此式:新鲜度=ΔT/t-t1。 The content of streaming media data freshness is reasonable when there is a difference in time of the time period [Delta] T value created by dividing the detection data streaming media file, see this formula: Freshness = ΔT / t-t1.

确定流媒体数据内容新鲜度的具体过程为:步骤301:启动新鲜度计算定时器:步骤302:判断定时时间是否已到,若是,进入步骤303,若不是,则重新判断,直至定时时间到为止;步骤303:读取系统当前时间t;步骤304:读取文件的创建时间t1;步骤305:判断t与t1的差值是否大于ΔT,若是,进入步骤306,若不是,进入步骤307;步骤306:该文件的新鲜度为0;步骤307:计算该文件的新鲜度值。 DETAILED process determines the streaming media content data freshness is: Step 301: Start timer freshness calculation: Step 302: determining whether the alarm time is reached, if so, proceeds to step 303, if not, re-determination, until the time until the timing ; step 303: reading the current time t; step 304: reading the file creation time t1; step 305: determining whether the difference value t and t1 is greater than [Delta] T, and if yes, proceeds to step 306, if not, proceeds to step 307; step 306: freshness file is 0; step 307: calculating the value of the freshness of the file.

由以上所述可知,当流媒体数据内容的热度和新鲜度高时,则为该流媒体分配更长的边缘缓存设备存储时间、更多网络带宽及其它资源,以方便用户从距离自己最近的服务器下载相关内容。 The apparent from the above, when fresh and high heat content of the streaming media data, streaming media distribution, compared with the longer edge caching device storage time, more network bandwidth and other resources to the user from their recent server download content. 系统设置将这些文件存储在硬盘的连续扇区,当用户请求访问这些文件时,由于文件的存储是连续的,硬盘驱动器的寻道时间将大大降低,系统能在最短的时间内读出媒体文件,用户的等待时间将大幅减少;在分配网络带宽时,系统根据当前的本机网络忙闲状况,事先预留部分本机网卡带宽资源,一旦有用户访问热度值和新鲜度值高的媒体文件,系统便将预留的本机网卡带宽资源立即分配给该媒体文件,以最快时间响应用户的请求,从而提高了服务质量。 The system stores these files in the set of contiguous sectors of the hard disk, when a user requests access to these files, since the storage file is continuous, a hard disk drive seek time will be greatly reduced, the system can read the media file in the shortest possible time , the user will significantly reduce waiting time; when allocating the network bandwidth, the system according to the current status of the computer network busy, reserved in advance part of the machine NIC bandwidth, once the user has access to the high heat value of the media file and the freshness value the system they put aside the native LAN bandwidth resources allocated immediately to the media file, with the fastest time response to user requests, thereby improving the quality of service.

反之,当流媒体数据内容的热度和新鲜度下降时,则缩短为该流媒体分配的边缘缓存设备存储时间,并减少为其分配的网络带宽及其他资源,系统将释放相应的连续磁盘空间和预留的本机网卡带宽资源,将资源留给其他新鲜度值和热度值高的流媒体文件,从而达到了最大限度利用边缘服务器的有限硬件资源的目的。 Conversely, when heat and freshness of streaming media data content is decreased, the shorter edge cache memory device for streaming distribution of time and reduce the assigned network bandwidth and other resources, the system will release the corresponding contiguous disk space, and this machine NIC reserved bandwidth resources, the resource available for other high heat value and a freshness value of streaming media files, so as to achieve the purpose of maximizing use of the limited hardware resources of the edge server.

Claims (10)

1.一种流媒体数据内容管理方法,在流媒体网络的边缘缓存设备上,根据流媒体数据内容的热度对边缘缓存设备上的流媒体数据内容进行管理,其特征在于,所述流媒体数据内容的热度通过如下步骤检测:(1)记录在当前检测时间段内被管理数据文件的被点击数;(2)获取该数据文件在前一时间段的热度,并将其作为当前时间段热度的初始值;(3)根据所述当前时间段热度的初始值与该数据文件在当前时间段内的被点击数的加权平均值,计算得到该数据文件在当前时间段的热度。 A content management method of the media data stream, the edge caching streaming media network devices, manages the streaming media data content on the edge caching apparatus according to the popularity of streaming data content, wherein said streaming media data heat content through the steps of detecting: (1) recording management data file is in the current detection period by the number of clicks; (2) acquiring a first data file of the heat period, and time period as the current popularity an initial value; (3) the data file is currently weighted average number of clicks time period, the calculated heat data file according to the current time period to the current value of the initial period of the heat.
2.如权利要求1所述的方法,其特征在于,所述流媒体数据内容的检测,是以固定时间间隔Δt进行的。 2. The method according to claim 1, wherein the content of the media data flow detection, is carried out a fixed time interval Δt.
3.如权利要求1所述的方法,其特征在于,所述步骤(2),如果是第一次计算热度时,则所述前一时间段的热度值可以由内容提供者自行给出一个初始值。 It gives a self 3. The method according to claim 1, wherein said step (2), if the heat is first calculated, the heat value of the previous time period may be provided by a content of the initial value.
4.如权利要求1所述的方法,其特征在于,所述步骤(3)中,通过以下公式确定当前热度:热度=(前一时间段的热度×W+当前时间段的点击数/Δt)/(1+W),其中,W表示加权系数。 4. The method according to claim 1, wherein said step (3), a heat current is determined by the following equation: = heat (heat previous time period × W + current hits / Δt period) / (1 + W), wherein, W represents a weighting coefficient.
5.如权利要求4所述的方法,其特征在于,所述W可根据情况调节。 5. The method according to claim 4, characterized in that, the W can be adjusted according to the situation.
6.如权利要求4所述的方法,其特征在于,所述W为0.5。 The method according to claim 6, wherein said W is 0.5.
7.如权利要求1所述的方法,其特征在于,所述时间段值根据边缘缓存设备的用户日志文件、流媒体数据文件的属性及其他统计数据确定。 7. The method according to claim 1, wherein said time period value according to a user log file edge cache apparatus, the attribute data of the streaming media files and other statistics determined.
8.如权利要求1所述的方法,其特征在于,所述根据流媒体数据内容的热度对边缘缓存设备上的流媒体数据内容进行管理的步骤,包括:当所述流媒体数据内容的热度上升时,则为该流媒体分配更长的边缘缓存设备存储时间、更多网络带宽及其他资源;当所述流媒体数据内容的热度下降时,则缩短为该流媒体分配的边缘缓存设备存储时间,并减少为其分配的网络带宽及其他资源。 8. The method according to claim 1, wherein the step of managing the content of streaming media data on the edge caching apparatus according to the heat content of the streaming media data, comprising: when the heat content of the streaming media data rising, streaming media distribution, compared with the longer edge caching device storage time, more network bandwidth and other resources; heat when the streaming media data content is decreased, the distribution of streaming media for shortening the edge caching storage device time, and reduce its distribution network bandwidth and other resources.
9.权利要求1所述的方法,其特征在于,进一步包括:在流媒体网络的边缘缓存设备上,根据流媒体数据内容的新鲜度对边缘缓存设备上的流媒体数据内容进行管理,包括:当所述流媒体数据内容的新鲜度上升时,则为该流媒体分配更长的边缘缓存设备存储时间、更多网络带宽及其它资源;当所述流媒体数据内容的新鲜度下降时,则缩短为该流媒体分配的边缘缓存设备存储时间,并减少为其分配的网络带宽及其他资源,当所述的新鲜度低于一定的门限时,边缘缓存设备自动删除有关流媒体数据内容。 9. The method as claimed in claim 1, characterized in that, further comprising: at the edge caching of streaming media network devices, manages the streaming media data content on the edge caching apparatus according to the freshness of content streaming media data, comprising: when the content of the streaming media data freshness increase, compared with the longer edge streaming cache device allocated storage time, more network bandwidth and other resources; streaming media data when the content freshness drops, device for the stream edge cache shorten storage time media distribution and reduce the assigned network bandwidth and other resources, the freshness when below a certain threshold, the device automatically deletes the relevant edge caching streaming media data content.
10.如利要求9所述的方法,其特征在于,所述流媒体数据内容的新鲜度值为所述时间段值除以检测进行的当时时间与流媒体数据文件创建之时的差值。 10. The method according to claims 9, wherein, said streaming media data content freshness value by the value of the time period when the time difference between the time of creation and detection of streaming media data file.
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