WO2011160553A1

WO2011160553A1 - Method and system for data synchronization in internet protocol television

Info

Publication number: WO2011160553A1
Application number: PCT/CN2011/075686
Authority: WO
Inventors: 邵济平; 刘群
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-06-24
Filing date: 2011-06-13
Publication date: 2011-12-29
Also published as: CN101873354A; CN101873354B

Abstract

The present invention discloses a method and system for data synchronization in an internet protocol television. The method includes the steps: establishing an index server, configuring resource index information of a resource providing device on the index server; according to the resource change on the resource providing device, synchronously updating the resource index information. By establishing the index server, the present invention configures the resource index information of the resource providing device and synchronously updates, according to the resource change on the resource providing device, the resource index information, thus being capable of utilizing a resource server to obtain the location of the resources quickly and implementing data synchronization in the internet protocol television more quickly and stably.

Description

Data synchronization method and system in interactive television

The present invention relates to IPTV (Internet Protocol TV, Internet TV, or Internet TV) technology, and more particularly to a data synchronization method and system in an interactive television. Background technique

IPTV is an Internet-based multimedia communication technology that utilizes broadband infrastructure, uses home TV or computers as the primary terminal equipment, transmits TV signals over IP protocols, and provides a variety of interactive digital media services, including television, to home users. .

The resource providing process in the IPTV is generally: the web server sends an EPG (Electronic Program Guide) information about the IPTV service to the browser according to the request of the browser, and the user requests the server to view the program according to the EPG information. The web server returns program information after receiving the request.

Currently, the information required by the EPG server includes posters, incremental data, full-size data, etc., which are downloaded from a single File Transfer Protocol (FTP) server. As the IPTV service continues to be rich and complex, EPG presentations are becoming more complex and complex, and the amount of information that needs to be synchronized is increasing. This traditional synchronization method exposes many drawbacks, such as the existence of a single point of failure, file types that need to distinguish between binary files (BIN) and US information. The standard code (ASCII) mode is interchanged, so there is a problem that the complexity is increased and the probability of traveling is increased, and the data synchronization speed is not fast enough, and a new solution is urgently needed. Summary of the invention

The main technical problem to be solved by the present invention is to provide a data synchronization method and system in an interactive television, which can realize data synchronization in an interactive television more quickly and stably. In order to solve the above technical problems, the present invention uses the following technical solutions:

A data synchronization method in an interactive television, comprising:

An indexing server is configured to configure resource index information of the resource providing device on the index server. In an embodiment of the method, the resource indexing information includes a resource index file of the resource providing device, or The index of the resource index file of the resource providing device.

In an embodiment of the method of the present invention, the resource index information is synchronously updated according to the resource change on the resource providing device: the resource providing device generates a resource index file for indexing its own resource and monitors its own resource change. And updating the resource index file and passing it to the index server when the resource changes.

In an embodiment of the method of the present invention, the method further includes: when the resource is changed to the resource content being updated, the resource for performing content update is re-detected after a predetermined time delay.

In an embodiment of the method of the present invention, the resource providing device includes a resource providing server and a client node.

In an embodiment of the method of the present invention, the resource comprises electronic program listing data. The present invention also provides a data synchronization system in an interactive television, comprising: an index server configured with resource index information of a resource providing device, the index server being used according to an implementation of the system according to the present invention In an example, the resource providing device includes a resource providing server and a client node.

The present invention also provides a method for implementing data synchronization by using the above data synchronization system, including:

The client requests resource index information from the index server;

The resource providing device request resource where the resource index information returned by the client to the index server is located In an embodiment of the foregoing method, the resource index information includes a resource index file of the resource providing device, or an index of a resource index file of the resource providing device.

In an embodiment of the foregoing method, the client requests the resource from the corresponding resource providing device according to the resource index information returned by the index server:

The client requests a resource index file from the index server;

The resource requesting resource index file provided by the client to the resource index file returned by the index server;

The client requests the resource from the resource providing device according to the resource index file returned by the resource providing device.

The invention realizes the resource indexing information of the resource providing device by setting up the index server and can quickly obtain the resource where the server is located, so that the data synchronization in the interactive television can be realized more quickly and stably. DRAWINGS

1 is a structural diagram of a synchronization system in an embodiment of the present invention;

2 is a flow chart of server-side signaling according to an embodiment of the present invention. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings.

The data synchronization method in the IPTV of the embodiment of the present invention mainly configures the resource index information of the resource providing device on the index server by establishing an index server;

- Source index information. In the embodiment of the present invention, the resource providing device includes not only a resource providing server but also a client node. Both the resource providing server and the client node can be one or more. 1 shows a data synchronization system constructed by a data synchronization method for an IPTV according to an embodiment of the present invention. As shown in FIG. 1, the resource providing device takes a resource providing server as an example, and the resource providing server includes a synchronization management server DTS-S-SM and The content source server DTS-S-SP, the index server DTS-S-RM, is used to configure resource index information of the resource providing servers (DTS-S-SM and DTS-S-SP). The client DTS-C requests the resource index information from the index server DTS_S_RM; and the resource providing device requesting the resource where the resource index information returned to the index server is located.

The resource index information, in this example, includes a resource index file of the resource providing device, or an index of the resource index file of the resource providing device. That is, the resource index file of the resource providing device may be directly configured on the index server, or each resource providing device may configure its own resource index file, and then the index of the resource index file is established on the index server.

When data synchronization is performed by using the above data synchronization system, the client sends a content query request to the index server, requests resource index information, and the index server responds to the query request, and returns a resource providing server and a client node list with the requested content to the client, the client The end requests the media content from the resource providing server or client node.

It should be noted that the client and the client node are actually clients, and the client node is a client other than the client requesting the content. In this paper, the concepts of "client" and "client node" are used. Distinguish between the roles played by the two. Here, the "client" refers to the client that requests the content, and the "client node" refers to other clients that can provide resources to the client, that is, the client can request resources from the resource providing server, or The client node requests the resource.

The resource index files configured by the resource providing devices are described as an example. As shown in FIG. 1, the resource providing server includes a synchronization management server DTS-S-SM and a content source server DTS-S-SP. The synchronization management server DTS-S-SM is deployed on the library of the resource providing server to ensure that file updates (including file addition, file deletion, file content update) on the library can be detected in time, and an index file of the current monitoring directory is generated. , and then notify the content source service DTS - S - SP.

The Synchronization Management Server DTS-S-SM includes the following features:

A. At startup, scan the directory that needs to be monitored, index all file information, and generate an index file.

B. Monitor the specified directory (for example, the mechanism using the Linux operating system), and generate an index update signal when the monitored directory has a file update.

C. After the index update signal is generated, a scan of the corresponding directory is started to generate a new index file.

D. According to the comparison between the old and new indexes, it is determined that the file update (file addition, file content update, file deletion, etc.) is recorded in the new index file.

When the file is updated according to the old and new index files, if there is file content update, or when there are new files, you need to scan the updated directory again. For those files with updates, if the file size is the same as the last scan, It is determined that there is no update for this file. If the file size changes, indicating that the file content is being updated, it is necessary to delay the predetermined time to rescan to determine whether the updated file is completely updated.

The content source server DTS-S-SP parses the index file, and notifies the index server one by one for the content in the index file, and establishes an index of the index file on the index server, and synchronously updates the resource index information.

The resource providing device can provide the correct file content response for all content requested segments, fragments, including the provision of index files, and the provision of each media content file described in the index file.

When a new client starts, it first logs in to the index server, registers, and reports its own status and resource information. In order to establish corresponding resource index information in the index server, the index server uniformly manages the client, so that the client can serve as a client node for resource provisioning. The resource supply mainly refers to providing the client with a content file containing the media content requested by the client, and the client can obtain various content files from the resource providing server or the client node, and if The content file of the resource providing server or the client node is updated, that is, when the resource change occurs, the client can also update the content file by logging in to the index server, and the client may first request the index file from the index server according to the index file. After confirming that the content file is updated, and then requesting the updated content file, the main processes for the client to log in to the index server to request content include:

A. Client login.

B. The client queries the index server for the latest index file.

C. The index server returns to the client a list of addresses of the resource providing server and the client node where the requested index file exists.

D. The client sends a request index message to the resource providing server or the client node of the index file that exists.

E. The resource providing server or the client node returns the requested index file to the client.

F. After the client obtains the index file, the index file is parsed.

G. The client requests the updated content file according to the index file.

Step G further includes the following steps:

Gl, the client queries the index server for the requested content file;

G2. The index server returns a list of addresses of the resource providing server or the client node where the requested content file exists;

G3. The client sends a request content message to a resource providing server or a client node that has the requested content file;

G4. The resource providing server or the client node returns the requested content file to the client. As shown in Figure 2, the resource providing server establishes an index on the index server. The detailed implementation steps are as follows:

1. DTS—S—SM generates an index file, and when a file update signal is received, an index file is updated.

2. DTS S SM detects the file addition, deletion or content update before the old index file is used. Pieces, generate a new file index list, and save it in a new index file.

3. DTS-S-SM informs DTS-S-SP to go online.

4. The DTS-S-SP parses the new index file generated in step 2, and verifies the legality of each file in the index file. For each of the files, sends a message to the DTS_S_RM, notifying the index file. Each file is online, that is, each file that indexes the index file to the index server can provide services.

5. Index Server DTS—S—The RM receives the message sent by the DTS—S—SP, and establishes an index in the memory so that the client can correctly return the result when requested, and returns a confirmation message to the DTS—S—SP.

6. The DTS-S-SP sends a message containing the index file name to the index server DTS_S_RM, and indexes the index file on the index server DTS_S_RM.

7. Similarly, for other resources, such as EPG, posters, emergency data, etc., use the above steps to build an index on the index server DTS-S-RM.

After the index is built on the index server DTS-S-RM, the content file of the index file index can provide services to the client. For the resource providing server, the DTS-S-SP distributes the content file to the client, and The way other client nodes provide data is consistent.

The invention realizes synchronous synchronization of resource index information by establishing an index server and correspondingly changing resources of the resource providing device, so that data synchronization in the IPTV can be realized more quickly and stably.

The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. It is to be understood by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention. .

Claims

Claim

A data synchronization method in an interactive television, the method comprising: establishing an index server, configuring a resource index of the resource providing device on the index server

The method according to claim 1, wherein the resource index information includes a resource index file of the resource providing device, or an index of a resource index file of the resource providing device.

The method according to claim 2, wherein the updating the resource index information according to the resource change on the resource providing device is: the resource providing device generates a resource index file for indexing its own resource and monitoring itself The resource is changed, and the resource index file is updated and passed to the index server when the resource is changed.

The method according to claim 3, wherein the method further comprises: when the resource is changed to the resource content being updated, the resource for performing content update is re-detected after a predetermined time delay.

The method according to any one of claims 1 to 4, wherein the resource providing device comprises a resource providing server and a client node.

The method of claim 5 wherein the resource comprises electronic program listing data.

7. A data synchronization system in an interactive television, characterized in that the system comprises: an index server configured with resource index information of a resource providing device, the index server being used for rooting

The data synchronization system according to claim 7, wherein the resource providing device comprises a resource providing server and a client node.

9. A method of implementing data synchronization using the data synchronization system of claim 7 or 8. The method is characterized in that: the method comprises:

The client requests resource index information from the index server;

The resource requesting resources of the resource index information returned by the client to the index server.

The method according to claim 9, wherein the resource index information includes a resource index file of the resource providing device, or an index of a resource index file of the resource providing device.

The method according to claim 10, wherein the client requests the resource from the corresponding resource providing device according to the resource index information returned by the index server:

The client requests a resource index file from the index server;