WO2008074225A1 - Procédé de remplacement de modèle, système et périphérique - Google Patents

Procédé de remplacement de modèle, système et périphérique Download PDF

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Publication number
WO2008074225A1
WO2008074225A1 PCT/CN2007/003685 CN2007003685W WO2008074225A1 WO 2008074225 A1 WO2008074225 A1 WO 2008074225A1 CN 2007003685 W CN2007003685 W CN 2007003685W WO 2008074225 A1 WO2008074225 A1 WO 2008074225A1
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WO
WIPO (PCT)
Prior art keywords
template
edge node
user terminal
node device
management
Prior art date
Application number
PCT/CN2007/003685
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English (en)
French (fr)
Inventor
Zhigang Wei
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP07855717A priority Critical patent/EP2104345A4/en
Publication of WO2008074225A1 publication Critical patent/WO2008074225A1/zh
Priority to US12/485,250 priority patent/US20090260039A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/04—Network management architectures or arrangements
    • H04L41/044—Network management architectures or arrangements comprising hierarchical management structures
    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/4722—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting additional data associated with the content
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6175—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving transmission via Internet
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6338—Control signals issued by server directed to the network components or client directed to network
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64746—Control signals issued by the network directed to the server or the client
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/654—Transmission by server directed to the client
    • H04N21/6547—Transmission by server directed to the client comprising parameters, e.g. for client setup
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8166—Monomedia components thereof involving executable data, e.g. software
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals

Definitions

  • the present invention relates to the field of IPTV and DTV services, and in particular, to a method, system and device for template replacement. Background technique
  • IPTV Internet Protocol Television or Interactive Television, IP TV
  • DTV Digital TV
  • EPG Electronic Program Guide
  • the specific implementation of the template change function is: STB (Set Top Box) displays the thumbnails of different styles on the TV screen. Users can select their favorite interface styles and operating habits on the TV screen through the remote control. The STB will replace the currently used template according to the user's choice. Compared with the single operation style display mode, the multi-style template can more effectively improve the richness of the IPTV system and the two-way DTV system business.
  • STB Set Top Box
  • a simple technical solution for replacing a template in the prior art is to replace only the background image of the operation interface, and there is no functional change except for the picture. There is no substantial technical change in this way, and it can only give users a shallow level of sensory impact. After a period of use, the user's freshness of the new background image will disappear.
  • Another technical solution for replacing a template in the prior art is that all EPG display templates are stored in the STB, and the specific operation is completely controlled by the STB. After the new EPG presentation template is written, the template is upgraded through the network. The information is all loaded into the STB of the user terminal, and the user selects and replaces the template.
  • the disadvantages of this technical solution are as follows: The terminal needs to provide as much storage space and memory resolution space as possible, which leads to excessive cost of the overall solution, and the implementation of the terminal is also very complicated. Taking the IPTV network as an example, the terminal needs to be able to parse multiple sets of template information, and a complete set of EPG templates including the necessary function updates are ranging from 6M to 10M, and the EPG template is upgraded to the STB.
  • the problem to be solved by the embodiment of the present invention is to provide a template replacement method, system and device, which solves the defects of limited storage space of the set top box, complicated template replacement process, and high resource occupation rate in the prior art.
  • an embodiment of the present invention provides a template replacement method, including the following steps:
  • the user terminal sends a replacement template request to the central node control device
  • the central node control device controls the edge node device to replace the template for the user terminal.
  • Another embodiment of the present invention further provides a template replacement system, including a central node management device and at least one edge node device.
  • the central node management device manages templates of each of the edge node devices and each of the edge node devices, and controls each edge node device to replace a template for the user terminal;
  • the edge node device stores a template under the control of the central node management device and replaces the template for the user terminal.
  • Another embodiment of the present invention further provides a central node management device, including a management unit and a storage unit.
  • the management unit maintains and manages each edge node device, and controls each edge node device to replace the template for the user terminal;
  • the storage unit stores a template and provides a template to each of the edge node devices under the control of the management unit.
  • a further embodiment of the present invention further provides an edge node device, which includes a template storage unit and a template loading unit.
  • the template storage unit stores a template sent by the central node, and sorts all templates sent by the central node;
  • the template loading unit replaces the template for the user terminal under the control of the central node device.
  • the embodiment of the present invention provides a template replacement method, system, and device.
  • the central node management device performs management and maintenance of each edge node device.
  • the central node management device controls the edge node device as a user.
  • the terminal replaces the template. Thereby, the processing speed of the user terminal to replace the template request is improved, the storage space of the user terminal and the transmission resource of the backbone network are saved, and the performance of the entire system is improved.
  • Embodiment 1 is a flow chart of a template replacement method in Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart of a method for a central node management device to send an EPG template to an edge node device according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic structural view of a template replacement system in Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of a central node management device according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of an edge node device according to Embodiment 3 of the present invention.
  • the core of the present invention is that the template is deployed on each edge node device, and the central node management device deploys and manages the template stored on each edge node device.
  • the edge node device sends the template to the user terminal.
  • Optional template information and replace the template for the user terminal under the control of the central node management device.
  • edge node devices already exist in the existing IPTV architecture and two-way DTV architecture, such as edge EPG servers, and their main purposes are currently to store program data streams, channel lists, and communication with user terminals STB.
  • FIG. 1 a template replacement method is shown in FIG. 1 , and the method specifically includes Next steps:
  • Step S101 The user terminal sends a template replacement request to the central node management device on the network side through the STB.
  • Step S102 The central node management device indicates, according to the location information of the user terminal, that the edge node device of the edge node where the user terminal is located or the edge node device closest to the user terminal displays the template information that can be selected to the user terminal.
  • the edge node device queries the current EPG template information available on the edge node device through the SOAP (Simple Object Access Protocol) protocol, and sends the query result to the user terminal in the form of a thumbnail for the user terminal to select.
  • SOAP Simple Object Access Protocol
  • Step S103 The user terminal sends a request for replacing the specified template to the edge node device.
  • the user terminal selects an EPG template to be replaced in the thumbnail and sends a replacement template request to the edge node device.
  • Step S104 The edge node device detects whether the EPG template exists in the current edge node device, if yes, proceeds to step S105, otherwise proceeds to step S107.
  • Step S105 The central node management device performs a template replacement operation, and the control edge node device sends the specified template to the user terminal, and replaces the EPG template currently used by the user terminal with the specified EPG template.
  • Step S106 The STB updates the EPG template used by the user terminal and ends. After the central node confirms that the replacement is successful, the STB updates the currently used template to the newly selected EPG template of the user terminal acquired from the edge node device and ends.
  • Step S107 The edge node device prompts the user terminal that the template does not exist and ends.
  • the possible causes of the absence of the EPG template selected by the user terminal include: network communication failure, edge node device failure, or template file corruption stored on the edge node device.
  • the edge node device and the STB also have a memory function capable of memorizing the template configuration information newly selected by the user terminal. After the set-top box is re-opened, the template of the user terminal can be directly displayed as the last updated EPG template. At the same time, if the EPG template used by the user terminal has been suspended by the central node, the edge node device and the STB will automatically replace the template with the default EPG template.
  • the process of replacing the EPG template by the user terminal in the first embodiment is based on the EPG template management performed by the central node management device on the edge node device, and the management includes sending, deleting, updating, and the like of the EPG template.
  • the method for the central node management device to send the EPG template to the edge node device is as shown in FIG. 2, and specifically includes the following steps:
  • Step S201 The central node management device stores and compresses a new EPG template, and the central node management device may be an ECS (EPG Control Sub-system, EPG Control Subsystem) or the like.
  • ECS EPG Control Sub-system, EPG Control Subsystem
  • Step S202 The central node management device sends a template update instruction message to the edge node device.
  • the ECS sends the EPG template message to the specified edge node device or all the edge node devices according to the distribution of the edge node device.
  • the ECS may send a template update instruction message through the SOAP protocol, where the message includes the template name, the physical storage location of the template, and the physical file.
  • the permission control name, password, and the sending of the message can be selected in two ways: encrypted sending and non-encrypting sending.
  • Step S203 The edge node device sends a template file acquisition request. After receiving the message, the target edge node device first determines whether the template update instruction message needs to be decrypted, decrypts according to a preset decryption manner, and then manages the device to the central node through the FTP protocol according to the information specified in the message. Issue a template file to get the request.
  • Step S204 The central node management device sends the template file to the edge node device.
  • Step S205 The edge node device receives the template file and loads the template file. After obtaining the template file correctly, the edge node device first decompresses the template file and verifies the correctness of the data. After confirming that the template file is in the correct state, the edge node device is based on the current state of the existing template and the to-be-loaded The template queue is used to perform priority loading on the new template. After the loading is completed, the template is deployed, and finally the operation result is returned to the central node management device such as ECS.
  • the priority loading in the step refers to that the edge node device presets the priority of the new template file according to information such as the template record of each user terminal under the current edge node, that is, when the thumbnail display is performed to the user terminal. The location of the template, the level of recommendation, etc. In addition, if the edge node has a limited storage space, the edge node device deletes some template files with lower usage rates while deploying the new template according to the different user terminals on the edge node.
  • Step S206 the central node management device confirms that the new template can be enabled.
  • the new template is sent to After the edge node device is deployed and the deployment is completed, the central node manages the device, such as ECS, to confirm that the template can be enabled.
  • Step S207 The user terminal uses the new template. After the central node management device enables the specified EPG template, the user terminal can select the preferred functional style through the STB, and use the new template according to the method described in the first embodiment.
  • the process of updating and deleting the EPG template is similar to the above process, and is controlled by the central node management device.
  • the difference is that the central node management device sends different message instructions to the edge node device:
  • the EPG template needs to be sent when the template is updated.
  • the update instruction is similar to the sending process described in the second embodiment. It also includes the necessary information that the edge node device needs to obtain the template from the central node management device, such as the template name, template physical storage location, and physical acquisition. The file's permissions control the name and password.
  • the central node management device needs to send an EPG template deletion command when deleting the template stored by the edge node device, and the edge node device storage only needs to delete the specified EPG template according to the instruction.
  • one or more edge node devices can be acquired at any time on a central node management device such as an ECS by timing communication with one or more edge node devices, such as a heartbeat (HEARTBEAT) request to a specified EPG template on the edge node device.
  • HEARTBEAT heartbeat
  • the file status includes the file name, file size, and version number. It is convenient to repair the problematic edge node device or template in time.
  • the central node management device deploys and manages the template on each edge node device by using the method as described in the first embodiment and the second embodiment.
  • the central node management device controls the edge node device to
  • the user terminal sends optional template information and replaces the template for the user terminal.
  • the method enables the user terminal to directly obtain the template information directly from the edge node device that is close to the terminal device, thereby improving the processing speed of the network side to the user terminal to replace the template request, and saving the storage space of the user terminal and the transmission resource of the backbone network. Loss.
  • the embodiment of the present invention further provides a template replacement system, which includes a central node management device, an edge node device, and a user terminal.
  • the deployment location and the number of deployments of the edge node device for storing the template may be changed according to the distribution of the user terminal in the network. .
  • the network There are three edge nodes as an example.
  • the template replacement system includes a central node management device 100, an edge node device 200, and a user terminal 300.
  • the central node management device 100 manages the storage templates on each edge node device 200 and each edge node device 200, including notifying the edge node device 200 of the sending, updating, and deleting messages of the EPG template; and also sending a heartbeat request to the designated EPG template.
  • the health status and operation status of all edge node devices 200 and all EPG templates are checked at any time, so that the problematic edge node device 200 or EPG template can be repaired in time.
  • the edge node device 200 that controls the edge node where the user terminal is located or the edge node device 200 closest to the user terminal is the user terminal according to the location of the user terminal 300. Replace the template.
  • the edge node device 200 responds to the EPG template of the central node management device 100 to send, update, and delete instructions, and prioritizes the EPG templates stored by the device for use by the user terminal 300. Further, upon receiving a message transmitted from the center node management device 100 confirming that the user terminal 300 replaces the EPG template, the locally stored EPG template is transmitted to the user terminal 300 and the template is replaced for the user terminal 300.
  • the user terminal 300 is configured to send an EPG template replacement request and receive an EPG template from the edge node device 200.
  • the third embodiment of the present invention further provides a central node management device.
  • the central node management device includes a management unit 101 and a storage unit 102, where
  • the management unit 101 maintains and manages each edge node device, and controls each edge node device to perform replacement of the user terminal template.
  • the unit further includes an edge node device management subunit 1011 and a user terminal management subunit 1012: the edge node device management subunit 101 1 . Maintaining and managing each edge node device, and periodically acquiring the state of each edge node device and each template; the user terminal management subunit 1012 processes the request of the user terminal to replace the template, confirms the request of the user terminal, and controls the user terminal.
  • the edge node device at the edge node or the edge node device closest to the user terminal replaces the template for the user terminal.
  • the storage unit 102 stores templates and provides templates to the edge node devices under the control of the management unit 101.
  • the third embodiment of the present invention further provides an edge node device, as shown in FIG. 5, the edge node is set.
  • a template storage unit 201 and a template loading unit 202 are provided, wherein:
  • the template storage unit 201 stores a template sent by the network side.
  • the template loading unit 202 receives the EPG template sending, updating, and deleting instructions of the central node, and sorts all the templates sent by the central node; and sends the locally stored EPG template to the user terminal and replaces the template for the user terminal when the central node management device confirms .
  • the information of the EPG template is stored on each edge node device in the network, and the EPG template stored on each edge node device is deployed and managed by the central node management device, and each edge node is simultaneously
  • the device and the working status of each EPG template are monitored in real time, so that the distributed deployment and management of the EPG template is implemented, so that the speed at which the network side processes the user terminal to replace the template request is improved, and the storage space and backbone network of the user terminal are saved. Loss of transmission resources.

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  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
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Description

模板更换的方法、 系统和设备 技术领域
本发明涉及 IPTV与 DTV业务领域， 尤其涉及一种模板更换的方法、 系统 与设备。 背景技术
在 IPTV ( Internet Protocol Television or Interactive Television, IP电视)和 双向 DTV ( Digital TV, 数字电视）业务中， 有一种由用户自主选择操作风格 以及界面功能的 EPG ( Electronic Program Guide, 电子节目指南）展示手段， 一般称其为模板更换功能。 不同的模板包括不同的界面风格以及不同的功能。
更换模板功能的具体实现方法是： STB ( Set Top Box, 机顶盒）将不同风 格的界面缩略图在电视屏幕上展示， 用户可通过遥控器， 在电视屏幕上选择 个人喜欢的界面风格和操作习惯。 STB会根据用户的选择， 更换当前所使用的 模板。与单一操作风格的展示方式相比，多风格的模板可以更有效的提高 IPTV 系统和双向 DTV系统业务的丰富性。
现有技术中的一种简单的更换模板的技术方案为， 只将操作界面的背景 图片进行替换， 除图片外， 没有任何功能上的变化。 这种方式没有实质上的 技术改变， 只能给用户以浅层次的感观冲击， 用户在使用一段时间后， 对新 背景图片的新鲜感就会消失。
现有技术中的另一种更换模板的技术方案为 ,将所有的 EPG展示模板全部 存储在 STB中，具体的运行完全由 STB控制，当新的 EPG展示模板编写完成后， 通过网络将升级模板信息全部加载到用户终端的 STB中，由用户进行模板的选 择和更换。 该技术方案的缺点在于： 需要终端提供尽可能多的存储空间以及 内存解析空间， 会导致整体方案的成本过高， 同时， 终端的实现也十分复杂。 以 IPTV网络为例， 终端需要能够解析多套模板信息， 同时一套完整的、 包括 必要的功能更新的 EPG模板大小为 6M至 10M不等，在 EPG模板向 STB升级更新 过程中， 即使以压缩的方式传递，对带宽以及 STB存储空间也会存在极大的消 耗，而且 STB的存储空间毕竟有限，能够同时提供的模板数量必然会受到限制.。 同样对于 DTV网络， 虽然传输介质不同， 但对传输资源以及存储资源的消耗 问题同样存在。 发明内容
本发明实施例要解决的问题是提供一种模板更换方法、 系统和设备， 以 解决现有技术中机顶盒存储空间有限， 模板更换过程复杂、 资源占用率高的 缺点。
为达到上述目的， 本发明的一实施例提供一种模板更换方法， 包括以下 步骤：
用户终端向中心节点控制设备发送更换模板请求；
所述中心节点控制设备控制边缘节点设备为所述用户终端更换模板。 本发明的另一实施例还提供一种模板更换系统， 包括中心节点管理设备 和至少一个边缘节点设备，
所述中心节点管理设备， 管理各所述边缘节点设备和各所述边缘节点设 备上的模板 , 并控制各所述边缘节点设备为用户终端更换模板；
所述边缘节点设备， 在所述中心节点管理设备控制下存储模板并为用户 终端更换模板。
本发明的另一实施例还提供一种中心节点管理设备，包括管理单元和存储单 元，
所述管理单元， 维护和管理各边缘节点设备， 并控制各所述边缘节点设备为 用户终端更换模板；
所述存储单元，存储模板并在所述管理单元控制下向各所述边缘节点设备提 供模板。
本发明的再一实施例还提供一种边缘节点设备， 其特征在于， 包括模板存储 单元和模板加载单元， 所述模板存储单元， 存储中心节点发送的模板， 并对所述中心节点发送的所 有模板进行排序；
所述模板加载单元， 在中心节点设备控制下为用户终端更换模板。
与现有技术相比， 具有以下优点：
本发明实施例提供一种模板更换方法、 系统与设备， 由中心节点管理设 备进行各边缘节点设备的管理和维护， 在用户终端发送更换模板请求时， 由 中心节点管理设备控制边缘节点设备为用户终端更换模板。 从而提高了网络 侧对用户终端更换模板请求的处理速度， 节约了用户终端的存储空间和主干 网传输资源的损耗， 提高了整个系统的性能。 附图说明
图 1 是本发明的实施例一中模板更换方法的流程图；
图 2是本发明的实施例二中中心节点管理设备向边缘节点设备发送 EPG 模板的方法流程图；
图 3是本发明的实施例三中一种模板更换系统的结构示意图；
图 4是本发明的实施例三中一种中心节点管理设备的结构示意图； 图 5是本发明的实施例三中一种边缘节点设备的结构示意图。 具体实施方式
本发明的核心在于将模板部署在各个边缘节点设备上， 并由中心节点管 理设备部署和管理各个边缘节点设备上存储的模板； 在用户终端需要进行模 板更换时， 由边缘节点设备向用户终端发送可选模板信息， 并在中心节点管 理设备控制下为用户终端更换模板。 这些边缘节点设备在现有 IPTV架构和双 向 DTV架构中是已经存在的， 如边缘 EPG服务器， 目前其主要用途在于存储 节目数据流、 频道列表以及与用户终端 STB进行通信等。
下面通过结合附图与实施例， 对本发明的实施方式做进一步说明。
本发明的实施例一中， 一种模板更换方法如图 1所示， 该方法具体包括以 下步骤：
步骤 S101 ,用户终端通过 STB向网络侧的中心节点管理设备发送更换模板 请求。
步骤 S102, 中心节点管理设备根据用户终端的位置信息， 指示该用户终 端所在边缘节点的边缘节点设备或距离该用户终端最近的边缘节点设备向该 用户终端显示可供选择的模板信息。 边缘节点设备通过 SOAP ( Simple Object Access Protocol, 简单对象访问协议）协议 ， 查询目前边缘节点设备上可用 的 EPG模板信息，并将查询结果以缩略图的形式向用户终端发送，供用户终端 选择。
步骤 S103， 用户终端向边缘节点设备发送更换指定模板的请求。 用户终 端在缩略图中选定要更换的某个 EPG模板， 发送更换模板请求至边缘节点设 备。
步骤 S 104 , 边缘节点设备检测该 EPG模板在当前边缘节点设备是否存在 , 若存在， 则进行步骤 S105, 否则进行步骤 S107。
步骤 S105， 中心节点管理设备进行模板更换操作， 控制边缘节点设备向 用户终端发送被该指定模板，并将用户终端当前所使用的 EPG模板更换为上述 指定的 EPG模板。
步骤 S106， STB更新用户终端所使用的 EPG模板并结束。 中心节点确认更 换成功后， STB将当前使用的模板更新为从边缘节点设备上获取的该用户终端 新选择的 EPG模板并结束。
步骤 S107, 边缘节点设备提示用户终端该模板不存在并结束。 该种情况 中， 用户终端选择的 EPG模板不存在的可能原因包括： 网络通信故障、 边缘节 点设备故障或边缘节点设备上存储的模板文件损坏等原因。
此外，该边缘节点设备和 STB还具有记忆功能， 能够记忆用户终端最新选 择的模板配置信息。 在重新开启机顶盒后， 可以将用户终端的模板直接显示 为最近一次更新的 EPG模板。 同时，如果用户终端使用的 EPG模板已被中心节 点暂停使用， 则边缘节点设备和 STB会自动将模板更换至默认的 EPG模板。 以上实施例一所述的用户终端更换 EPG模板的过程，是建立在中心节点管 理设备对边缘节点设备进行 EPG模板管理的基础上的，该管理包括 EPG模板的 发送、 删除、 更新等等。 本发明的实施例二中， 中心节点管理设备向边缘节 点设备发送 EPG模板的方法如图 2所示， 具体包括以下步骤：
步骤 S201 , 中心节点管理设备存储并压缩新的 EPG模板， 该中心节点管 理设备可以为 ECS ( EPG Control Sub-system , EPG控制子系统）等。
步骤 S202, 中心节点管理设备向边缘节点设备发送模板更新指令消息。 ECS根据边缘节点设备的分布， 向指定边缘节点设备，或所有边缘节点设备发 送该 EPG模板消息， ECS可以通过 SOAP协议发送模板更新指令消息， 消息中 包括模板名称、 模板物理存储位置、 获取物理文件的权限控制名称、 密码， 该消息的发送， 可选择加密发送和非加密发送两种方式。
步骤 S203, 边缘节点设备发送模板文件获取请求。 目标边缘节点设备收 到该消息后， 首先判断该模板更新指令消息是否需要解密， 如需解密则按照 预先设定的解密方式解密， 然后根据消息中指定的信息， 通过 FTP协议向中心 节点管理设备发出模板文件获取请求。
步骤 S204 , 中心节点管理设备向边缘节点设备发送模板文件。
步骤 S205 , 边缘节点设备接收模板文件并加载该模板文件。 边缘节点设 备在正确获取模板文件后， 首先解压缩该模板文件， 并校验数据的正确性； 当确认模板文件状态正确无误后， 边缘节点设备根据当前已有模板的使用状 态， 及待加载的模板队列， 对新模板进行优先级加载， 加载完成后， 对该模 板实施部署，最后将操作结果返回至中心节点管理设备如 ECS。该步骤中所指 的优先级加载， 是指边缘节点设备根据当前边缘节点下各用户终端使用模板 记录等信息， 预先设定新模板文件的优先级， 即在向用户终端进行缩略图显 示时新模板的位置以及推荐程度等。 另外， 若边缘节点存储空间有限时， 根 据对边缘节点下不同的用户终端使用模板记录， 边缘节点设备在部署新模板 的同时， 删除某些原有使用率较低的模板文件。
步骤 S206, 中心节点管理设备确认新模板可以启用。 待新模板均下发至 边缘节点设备且部署完成后， 由中心节点管理设备如 ECS，确认该模板可以启 用。
步骤 S207, 用户终端使用新模板。 在中心节点管理设备启用指定的 EPG 模板后，用户终端即可通过 STB选择喜好的功能风格，按照实施例一中所述的 方法使用新模板。
EPG模板的更新和删除过程与上述的流程类似，都是由中心节点管理设备 来控制， 不同之处在于中心节点管理设备向边缘节点设备发送的消息指令不 同： 需要对模板进行更新时发送 EPG模板更新指令， 更新时的具体操作与实施 例二中所描述的发送过程相似， 同样包括边缘节点设备从中心节点管理设备 获取模板时所需的必要信息， 如模板名称、 模板物理存储位置、 获取物理文 件的权限控制名称和密码。 中心节点管理设备需要对边缘节点设备存储的模 板进行删除时发送 EPG模板删除指令，边缘节点设备存储只需按照该指令将指 定 EPG模板删除即可。
此外，可在中心节点管理设备如 ECS上，通过与一个或多个边缘节点设备 定时通信， 如向边缘节点设备上的指定 EPG模板发送心跳（HEARTBEAT )请 求， 随时获取一个或多个边缘节点设备的运行情况、 以及边缘节点设备中各 模板的文件状态， 该文件状态包括文件名、 文件大小、 版本号是否正确等， 便于对出现问题的边缘节点设备或模板及时进行修复。
通过使用如实施例一与实施例二所述的方法， 由中心节点管理设备部署 和管理各个边缘节点设备上的模板， 在用户终端需要进行模板更换时， 由中 心节点管理设备控制边缘节点设备向用户终端发送可选模板信息并为用户终 端更换模板。 该方法使得用户终端可以直接从与本终端设备距离很近的边缘 节点设备直接获取模板信息， 提高了网络側对用户终端更换模板请求的处理 速度， 节约了用户终端的存储空间和主干网传输资源的损耗。
本发明实施例还提供一种模板更换系统， 包括中心节点管理设备、 边缘 节点设备和用户终端， 其中用于存储模板的边缘节点设备的部署位置和部署 数量可以参考网络中用户终端的分布而变化。 本发明的实施例三中， 以网络 中存在三个边缘节点为例， 如图 3所示， 模板更换系统包括中心节点管理设备 100、 边缘节点设备 200和用户终端 300。
中心节点管理设备 100管理各边缘节点设备 200和各边缘节点设备 200上 的存储模板， 包括向各边缘节点设备 200通知 EPG模板的发送、 更新和删除消 息；还可以通过向指定 EPG模板发送心跳请求，随时查看所有边缘节点设备 200 和所有 EPG模板的健康状况和运行情况， 便于对出现问题的边缘节点设备 200 或 EPG模板及时进行修复。 另外， 在接收到用户终端 300发送的更换模板的请 求时， 根据用户终端 300所在的位置， 控制该用户终端所在边缘节点的边缘节 点设备 200或距该用户终端最近的边缘节点设备 200为用户终端更换模板。
边缘节点设备 200，响应中心节点管理设备 100的 EPG模板发送、更新和删 除指令，并将本设备存储的 EPG模板进行优先级排序，以供用户终端 300使用。 另外，在接收到中心节点管理设备 100发送的确认为用户终端 300更换 EPG模板 的消息时， 向用户终端 300发送本地存储的 EPG模板并为用户终端 300更换模 板。
用户终端 300,用于发送 EPG模板更换请求，并接收来自边缘节点设备 200 的 EPG模板。
本发明的实施例三还提供一种中心节点管理设备， 如图 4所示， 中心节 点管理设备包括管理单元 101和存储单元 102， 其中，
管理单元 101 维护和管理各边缘节点设备， 并控制各边缘节点设备进行 用户终端模板的更换； 该单元进一步包括边缘节点设备管理子单元 1011和用 户终端管理子单元 1012: 边缘节点设备管理子单元 101 1 , 维护和管理各所述 边缘节点设备， 定时获取各所述边缘节点设备和各模板的状态； 用户终端管 理子单元 1012处理用户终端更换模板的请求， 确认用户终端的请求并控制该 用户终端所在边缘节点的边缘节点设备或距该用户终端最近的边缘节点设备 为用户终端更换模板。 存储单元 102存储模板并在管理单元 101 的控制下向 各边缘节点设备提供模板。
本发明的实施例三还提供一种边缘节点设备， 如图 5 所示， 边缘节点设 备包括模板存储单元 201和模板加载单元 202， 其中：
模板存储单元 201， 存储网络侧发送的模板。 模板加载单元 202, 接收中 心节点的 EPG模板发送、更新和删除指令，将中心节点发送的所有模板进行排 序；在中心节点管理设备确认时向用户终端发送本地存储的 EPG模板并为用户 终端更换模板。
通过使用如实施例三所述的方法，在网络中的各边缘节点设备上存储 EPG 模板的信息， 并由中心节点管理设备部署和管理各个边缘节点设备上存储的 EPG模板， 同时对各个边缘节点设备和各 EPG模板的工作状态进行实时监控， 从而实现了 EPG模板的分布式部署与管理，使得网络侧处理用户终端更换模板 请求的速度得到了提高， 同时节约了用户终端的存储空间和主干网传输资源 的损耗。
以上公开的仅为本发明的几个具体实施例， 但是， 本发明并非局限于此， 任何本领域的技术人员能思之的变化都应落入本发明的保护范围。

Claims

权 利 要 求
1、 一种模板更换方法， 其特征在于， 包括以下步骤：
接收用户终端发送的更换模板请求；
控制边缘节点设备为所述用户终端更换模板。
2、 如权利要求 1所述模板更换方法， 其特征在于， 所述控制边缘节点设 备为所述用户终端更换模板的步骤具体包括：
控制所述边缘节点设备向所述用户终端发送可选的模板信息；
控制所述的边缘节点设备在接收用户终端发送的更换指定模版请求时向 用户终端发送用户终端指定的模板。
3、 如权利要求 2所述模板更换方法， 其特征在于， 在所述控制边缘节点 设备为所述用户终端更换模板之前包括：
在边缘节点设备上存储模板。
4、 如权利要求 2或 3所述模板更换方法， 其特征在于， 在所述控制边缘 节点设备为所述用户终端更换模板之前包括：
更新所述边缘节点设备上的模板； 和 /或
删除所述边缘节点设备上的模板。
5、如权利要求 2所述模板更换方法，其特征在于， 所述方法进一步包括： 获取各边缘节点设备的运行状况和 /或各所述边缘节点设备上的模板的状 态；
修复异常的边缘节点设备和 /或所述边缘节点设备上的异常模板。
6、 如权利要求 4所述模板更换方法， 其特征在于， 所述更新所述边缘节 点设备上存储的模板的步骤具体包括：
向所述边缘节点设备发送模板更新指令消息；
接收所述边缘节点设备根据所述模板更新指令消息发送的获取模板请 求；
向所述边缘节点设备发送所述模板；
7、 如权利要求 6所述模板更换方法， 其特征在于， 所述模板更新指令消 息包括： 模板名称、 模板物理存储位置、 获取物理文件的权限控制名称和密 码。
8、 如权利要求 6所述模板更换方法， 其特征在于， 所述向所述边缘节点 设备发送模板更新指令消息具体包括：
以加密方式或非加密方式向所述边缘节点设备发送模板更新指令消息。
9、 如权利要求 3所述模板更换方法， 其特征在于， 还包括步骤： 所述边 缘节点设备对当前存储的所有模板进行排序。
10、 一种模板更换方法， 其特征在于， 包括以下步骤：
根据中心节点管理设备的指示向用户终端发送可选的模板信息； 接收用户终端发送的更换指定模版请求；
根据中心节点管理设备的指示向用户终端发送用户终端指定的模板。
11、 一种模板更换系统， 其特征在于， 包括： 中心节点管理设备和至少 一个边缘节点设备，
所述中心节点管理设备， 接收用户终端发送的更换模板请求， 并控制各 所述边缘节点设备为用户终端更换模板；
所述边缘节点设备， 在所述中心节点管理设备控制下存储模板并为用户 终端更换模板。
12、 如权利要求 11所述模板更换系统， 其特征在于， 所述中心节点管理 设备进一步用于向边缘节点设备更新和 /或删除所述模版；
13、 如权利要求 11所述模板更换系统， 其特征在于， 所述中心节点管理 设备进一步用于向边缘节点设备获取所述边缘节点设备的运行状况和 /或所述 边缘节点设备上模板的状态； 修复异常的边缘节点设备和 /或所述边缘节点设 备上存储的异常模板。
14、 一种中心节点管理设备， 其特征在于， 包括管理单元和存储单元， 所述管理单元， 接收用户终端发送的更换模板请求并控制各所述边缘节 点设备为用户终端更换模板； 所述存储单元， 存储模板并在所述管理单元控制下向各所述边缘节点设 备提供模板。
15、 如权利要求 14所述中心节点管理设备， 其特征在于， 所述管理单元 进一步用于向边缘节点设备更新和 /或删除所述的模板。
16、 如权利要求 14所述中心节点管理设备， 其特征在于， 所述管理单元 进一步包括边缘节点设备管理子单元和用户终端管理子单元。
所述边缘节点设备管理子单元， 维护和管理各边缘节点设备， 定时获取 各所述边缘节点设备的运行状态和各所述边缘节点设备上模板的状态；
所述用户终端管理子单元， 处理用户终端更换模板的请求。
17、 一种边缘节点设备， 其特征在于， 包括模板存储单元和模板加载单 元，
所述模板存储单元， 存储中心节点管理设备发送的模板；
所述模板加载单元， 在中心节点管理设备控制下为用户终端更换所述模 板存储单元中存储的模板。
18、 如权利要求 17所述边缘节点设备， 其特征在于， 所述模板加载单元 进一步用于对所述中心节点管理设备发送的所有模板进行排序。
19、 如权利要求 17所述边缘节点设备， 其特征在于， 所述模板加载单元 进一步用于根据用户终端根据心节点管理设备的指示向用户终端发送可选的 模板信息； 接收用户终端发送的更换指定模版请求； 根据心节点管理设备的 指示向用户终端发送用户终端指定的模板。
PCT/CN2007/003685 2006-12-21 2007-12-19 Procédé de remplacement de modèle, système et périphérique WO2008074225A1 (fr)

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CN1997145B (zh) 2010-05-19

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