KR100652844B1 - Method and system for providing data service with metadata linked - Google Patents

Abstract

A method and a system for providing data broadcasting service are provided to make metadata and application synchronize with each other according to broadcasting programming information, thereby synchronizing various services with audio and video. Meta data are created by synchronizing with broadcasting programming information at the creating time of application(S200). The metadata includes service subordination content information changed by types of information data. Information data, which are to be transmitted together with the application, are processed with reference to the metadata(S207). The application and the information data are transmitted to the receiver of a user.

Description

Method for providing linked data broadcasting service using metadata and system for providing data broadcasting service {Method and System for providing data service with metadata linked}

1 is a configuration diagram of a data broadcasting system in which a separate information providing system is provided according to a type of provided information data service.

2 is a configuration diagram of a data broadcast service system according to an embodiment of the present invention.

3 is a configuration diagram of a data broadcast service system according to an embodiment of the present invention.

4 is a flowchart illustrating a data broadcasting service providing method according to an embodiment of the present invention.

5 is a flowchart illustrating a method of providing a data broadcast service according to an embodiment of the present invention.

The present invention relates to a data broadcasting service providing method and a data broadcasting service providing system using meta data in a data broadcasting service.

Recently, with the rapid development of communication technology, digital broadcasting technology has also started to spread in broadcasting technology. Digital broadcasting is a next-generation broadcasting technology that can operate, reproduce, and accumulate, unlike conventional analog broadcasting, and is a television broadcasting that compresses and exports a television signal in a digital form in which information signals are encoded and recorded. Has become a key technology in the multimedia age.

Digitalization of broadcasts enables data broadcasting or interactive broadcasting such as auctions, games, purchases of goods, and viewing additional information while watching TV, thereby developing applications provided with the broadcast programs in data broadcasting, and developing each application. Various data are provided to users as information.

On the other hand, data broadcasting is classified into linked data broadcasting and independent data broadcasting. In this case, interlocking / independence is determined based on whether information provided in the corresponding data broadcast is information related to A / V (Audio Video: AV) being broadcast or independent information.

For example, if the data broadcast that comes together when an A / V such as drama or sports is broadcast is related to the drama or the content of the sports, it is classified as a linked data broadcast, and is not related to the A / V contents. If you provide other information such as information, news, weather forecasts, securities services, games, etc., it is classified as a standalone data broadcast.

At this time, an important point in the linked data broadcasting service is that the information content of the data broadcasting should be consistent with the A / V programming being aired. In other words, the linked data broadcast for the drama should start the service together when the drama starts and ends together when the drama ends. Therefore, application transmission of data broadcasting is performed based on a programming information database which stores programming information of a broadcast program.

In addition, when the data broadcasting content provides real time information, a real time information processing system that collects, processes, and provides real time information required by the data broadcasting content should be linked to the service while the broadcast is live.

Therefore, when various types of data providing services are organized and executed according to the broadcasting time zone of each broadcasting program, various servers or systems for the corresponding services are needed.

For example, as shown in Figure 1, according to the schedule of each broadcast program sports real-time information service, weather real-time information service, securities real-time information service, traffic real-time information service, news real-time information service, voting When various information providing services such as status information providing service are implemented, each system configuration according to the contents of each service is required.

At this time, the number of systems required by the number of services provided must be increased, and when there is a need to provide new information during broadcasting, there is a problem that the network configuration, etc., needs to be newly configured by interlocking during broadcasting.

On the other hand, with reference to the coordinated information when the linked data broadcast, it operates a data broadcast service linked with the metadata transmission time of the corresponding content between the systems.

 When providing a data broadcast service, the amount of information to be provided is always limited by the broadcast bandwidth. When a large number of data is transmitted, there is a risk of being limited by the bandwidth allocated to the data broadcast. Bandwidth limitations can also affect the initial startup speed of an application. In addition, even if the application is downloaded and executed, the narrower the bandwidth, the slower the transmission speed, which increases the execution of the application itself.

Therefore, the technical problem to be achieved by the present invention is to be able to link various information providing services with AV by interworking metadata according to the organization information.

In addition, another technical problem to be achieved by the present invention is to overcome the limitations of the broadcast bandwidth when providing a data broadcast service.

According to an aspect of the present invention, there is provided a method for providing a data broadcast service using metadata according to an aspect of the present invention. Generating meta data comprising information; b) processing the information data to be transmitted with the application by referring to the metadata; And c) the application and the information data are sent to a user receiving end.

In addition, according to another aspect of the present invention, a method for providing a data broadcast service using metadata includes a) at the time of application creation, between a first application that a user receives through a broadcast channel and a second application that the user receives through a return channel. Generating meta data including classification information; b) when the transmission target application is a second application, the second application and the information data are registered with a return sending server and a return sending server registration fact is transmitted through a broadcast channel or a return channel; c) transmitting the second application and data to a connected user receiving end via return sending server location information.

The data broadcasting service providing system using metadata according to an aspect of the present invention for achieving the above technical problem includes an application and service dependent content information which varies according to the type of information data provided as metadata for the application. A content management server storing meta data; A transmission server for transmitting the application and the metadata stored in the content management server based on organization information; An information processing server which processes and transmits the information data based on the meta data contents transmitted from the transmitting server; A content delivery server which transmits the meta data transmitted from the delivery server to the information processing server and receives the processed information data from the information processing server; And a data encoder for transmitting the information data received from the content delivery server to the user together with the application received from the delivery server.

In addition, the data broadcasting service providing system using meta data according to another aspect of the present invention, the application and the first application that the user is transmitted through the broadcast channel and the second application that the user is transmitted through the return channel includes the identification information A content management server for storing the metadata; A transmission server for transmitting the application and the metadata stored in the content management server based on organization information; A return sending agent for separating and specifying a sending path according to whether the application transmitted from the sending server is a first application or a second application, so that the second sending application is stored in the return sending server; And a return sending server that stores the second application and sends the second application on a return channel upon request.

In the data broadcasting service providing system and the data broadcasting service providing method using meta data according to an embodiment of the present invention, an information processing server that provides various types of information data linked to broadcast programming information is formalized to be service independent. The service-dependent contents are included in the metadata of the corresponding application so that the service-dependent contents can be linked and operated in conjunction with the broadcast programming information, and thus can be configured as a unified system regardless of the type of the information providing service.

In addition, the data broadcasting service providing system and the data broadcasting service providing method using meta data according to an embodiment of the present invention include transmission path information of a transmission target application in metadata of the corresponding application and return a part of the transmission target application. It may be configured to transmit on the channel. Since the return channel utilizes a high speed internet network, high bandwidth can be used for application transmission, thereby overcoming the bandwidth limitation of the broadcasting network.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the data broadcasting service providing system using meta data according to an embodiment of the present invention includes an editor 100, a content management server 200, a transmission server 300, a data encoder 400, And a content delivery server 500 and an information processing server 600.

 The editor 100 is a content authoring tool, which authors an application and generates metadata (Application Information, API) containing information about each application. In this case, the editor 100 may be configured as a data broadcasting-only authoring tool for generating a source in a structure suitable for the function of the application to be authored, and is generally used by a person to directly generate source code according to the function of the application to be authored. It may also be a source code generation tool.

In this case, the editor 100 may determine an application transmission channel when generating an application.

More specifically, the editor 100 may determine whether the corresponding application is a return channel transmission target or a broadcast channel transmission target, and when the return channel transmission target is included, the user receiver may include URL information to receive the corresponding application. URL information may be added to an API that is content metadata and distributed with an application.

The content management server 200 registers and manages information necessary for application transmission. The content management server 200 registers and manages initial data and resource information of an application, and registers and manages meta information files such as data structure and transmission cycle of the application and sends the server. To provide.

The transmission server 300 reads the information on the content configuration from the API file generated by the editor in association with the program information of the broadcast program and transmits the information to the data encoder. At this time, the meta information file of the transmitted application is transmitted to the content delivery server, and when the application is terminated, the content delivery server is notified of the termination.

The sending server 300 determines whether to generate HttpProfileBody when sending an application and a meta file linked to the organization information based on the API of the application. In other words, if the application's API contains URL information, add HttpProfileBody information to the communication packet structure for the application and pass it to the data encoder.

The content delivery server 500 automatically receives the meta information file of the application being sent by the delivery server according to the organization information and checks the data item. Then, the received meta information is distributed to the information processing server.

In addition, when the content delivery server 500 receives the data according to the meta information from the information processing server, the content delivery server 500 transmits the data to the data encoder.

When the content delivery server 500 receives the termination notification of the running application according to the broadcast program configuration information from the transmission server, the content transmission server 500 notifies the information processing server having the corresponding meta information about the termination status of the application, and terminates the application. Delete meta information from

The information processing server 600 receives the meta file automatically transmitted by the sending server according to the organization information and receives detailed information such as data location, data import method, data import cycle, data transmission cycle, and the like. Can be set. The data is transmitted to the content delivery server based on the set detail information value, and upon receiving the termination notification for the running application from the content delivery server, the data transmission is stopped and the corresponding meta information is deleted.

At this time, the information processing server may include a real time information processing server 601 and a bidirectional information processing server 603 according to the characteristics of the information provided. For example, in the case of content (real-time information such as sports, weather, news, stocks, traffic, etc.) generated in real time as the content that requires real-time information processing, it is necessary to provide real-time information on the corresponding application linked to the organization information The real time information processing server 601 may process the corresponding data and transmit the processed data to the content delivery server 500.

In addition, in the case of content such as information (two-way information such as voting and quiz) in which information is transmitted in both directions as content that requires bidirectional information processing between the user and the broadcaster, the bidirectional information processing server 603 processes the data and sends the content to the server. 500 may be sent.

The data encoder 400 may receive an application and metadata from the transmission server 300 to encode the application and add program and system related information.

For example, the data encoder 400 may use an OC engine therein, and may add an HttpProfileBody through an internal OC engine. At this time, the OC engine encodes data according to the Object Carousel update protocol. More specifically, the data encoder 400 may receive information for generating the HttpProfileBody from the sending server and add HttpProfileBody information to the communication packet structure with the sending server through an OC engine function call.

In general, the BIOPProfilebody makes a reference to the updated location of the updated file in the set-top box of the user's receiver by using a broadcast channel when transmitting a file such as an OC update or a stream event. HttpProfilebody, on the other hand, uses the return channel to retrieve the necessary resource or file location from another server.

That is, the data encoder 400 is generally used for referencing an object in the same object carousel, and adds an HttpProfilebody in addition to the BIOPProfileBody where the referenced file indicates a directory path and a file name.

At this time, the data encoder 400 is composed of a first encoder 401 and a second encoder 403, the HttpProfilebody is added to the data to be transmitted by the first encoder 401, the second encoder 403 By the program and system-related information may be added and transmitted to the broadcast channel.

In addition, as shown in FIG. 3, the data encoder 400 includes a return sending agent 405, and works in conjunction with the sending server 300 to route an application to the data encoder 400 and the return sending server 700. Can be specified separately. When the application designated as the return sending server 700 is sent out by the sending server 300, the application is transmitted to the return sending server 700.

In addition, the return sending agent 405 transmits a completion signal to the data encoder 400 when the application is registered with the sending server. Then, the application that has been sent out by the sending schedule is deleted from the return sending server 700.

The return sending server 700 may register a return channel sending target application received through the return sending agent 405 of the sending server 300 and transmit the corresponding application to the receiving end of the user through the return channel.

Hereinafter, a method of providing a linked data service using meta data according to an embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5.

As shown in FIG. 4, first, when the editor 100 generates a data structure of an application to configure metadata, the content management server 200 registers a corresponding application and a meta file.

In this case, the meta data is data transmitted from the information processing server 600, and includes contents that vary depending on the type of information providing service, that is, contents dependent on the providing service, and newly configures an information providing system according to the contents of the service. This saves you the trouble of linking.

At this time, an example of metadata including service-dependent contents is as follows.

In this case, each data information may be processed by the real-time information processing server 601 or the bidirectional information processing server 603 and transmitted to the content delivery server 500 according to the characteristics of the information provided. As shown in the example, each is represented by a DS structure and an RDS structure.

The transmission server 300 transmits the corresponding application and the metadata file to the data encoder 400 and the content transmission server 500, respectively, when there is programming information based on the broadcasting program programming information (S100, S101, and S107).

At this time, the transmission server 300 checks whether the termination target application exists according to the organization information, and if the termination target application exists, the application is terminated and terminated at the content transmission server 500 and the data encoder 400. The message is transmitted (S103, S105).

The message packet sent from the transmission server 300 to the data encoder 400 is, for example, as follows.

If the content delivery server 500 also terminates the application being transmitted by the organization information by the transmission server 300, the information processing server 600 is notified of the application termination and the service operated by the corresponding metadata is terminated (S110).

Then, the content delivery server 500 receives the metadata file by the organization information and transmits the metadata file to the currently connected information processing server 600. For example, the real-time information processing server 601 and the bidirectional information processing server 603 are transmitted. In step S111, the metadata file may be transmitted.

The information processing server 600 stops data transmission and automatically deletes the meta data file upon receiving the application termination notification by the organization information (S113 and S115). The information processing server 600 such as the real time information processing server 601 and the bidirectional information processing server 603 collects and processes data by referring to the information of the metadata file received in association with the organization information from the content delivery server. After that, the content is sent to the content delivery server 500 (S117).

At this time, an example of a message packet transmitted from the information processing server 600 to the data encoder 400 is as follows.

The content delivery server 500 transmits the received data to the data encoder 400. The data encoder 400 starts the application transmission when the application is received from the delivery server 300. At this time, when the data encoder 400 receives the real-time or bidirectional information data file from the content delivery server 500, the data encoder 400 transmits the received data together with the application (S119, S123). Similarly, if the data encoder 400 receives the application termination notification, the data encoder 400 terminates the corresponding application (S120, S121).

Therefore, the information processing server collects and processes data by referring to the metadata of the corresponding application linked with the organization information without having to configure an information processing system for each individual content such as sports, weather, traffic, voting, and quiz. Since the transmission, the number of systems according to the information data type and the burden on the system interworking change is reduced, and at the same time, various information providing services can be linked with the AV.

In addition, as shown in FIG. 5, when the application is generated in the editor 100, the user receiving terminal generates and generates an application transmitted through a return channel, an application received through a broadcast channel, and its metadata, and generates the generated application and Meta data may be stored in the content management server 200 (S200, S201).

For example, as shown in the example metadata representation below,

If <HttpProfileBodyURL> 222.106.22.133 </ HttpProfileBodyURL> is present, the application is classified as an application that is sent to the user on the return channel from that URL (222.106.22.133 in the example above), and if there is no HttpProfileBody, over the broadcast channel. Categorized as an application sent to the user.

The transmission server 300 transmits the registered application and the metadata file to the data encoder 400 and the content transmission server 500 according to the organization information. At this time, the transmission server 300 refers to the contents of the HttpProfileBody and delivers the information to the data encoder 400 (S203).

Thus, for example

To the transmission server 300 and the data encoder 400 communication packet before the change.

As shown, the HttpProfileBody is added.

The content transmission server 500 transmits the metadata file received from the transmission server to the currently connected information processing server, and the information processing server 600 which has received the new metadata file receives the data by referring to the contents of the metadata file. Collected, processed, and generated, and the data is transmitted to the content delivery server 500 (S205, S207). In addition, the content transmission server 500 may transmit the received data to the data encoder 400 (S209).

When the data encoder 400 receives the application from the transmission server 300, the application starts transmission, and when the information data file is received from the information processing server 600, the data encoder 400 is transmitted together (S210).

At this time. If the application is an application to be sent through the return channel, that is, if the application's metadata includes HttpProfileBody information, the application and the information data are registered with the return sending server 700, and this return sending server 700 ) Is transmitted through the broadcast channel (S211, S213, S215).

Then, the user receiving end executes the return channel transmission target application and data through the server location information of the HttpProfileBody (S217, S219). At this time, the broadcast channel transmission target application is transmitted through the broadcast channel is executed in the user receiver is a matter of course (S221).

Therefore, an application transmitted only through the existing broadcasting network can be transmitted through the return channel according to the selection, thereby overcoming the limitation of the given bandwidth. As a result, abundant data broadcasting services can be achieved beyond the limited bandwidth without slowing down. In particular, the return channel utilizes a high-speed Internet network, which is useful in that high bandwidth can be used for application transmission.

What has been described above is only an embodiment of the present invention, and various modifications can be made to the obvious matters for those skilled in the art. The scope of the present invention will include all technical components recognized as the claims described below and equivalents thereof.

As described above, according to the present invention, the metadata and the application are linked according to the organization information, so that the data and the AV required by each application can be linked.

In addition, according to the present invention, since the application can be transmitted using the return channel as well as the general broadcast channel, it is possible to overcome the limitations of the existing broadcast network bandwidth, and abundant data broadcasting service beyond the limited bandwidth without degrading the application loading speed.

Claims (12)

In the linked data broadcast service providing method using meta data, a) generating meta data including service dependent content information which changes according to the type of information data provided in association with broadcast programming information when the application is generated; b) processing the information data to be transmitted with the application by referring to the metadata; And c) the application and the information data are transmitted to a user receiving end Method of providing a linked data broadcast service using meta data including a. The method of claim 1, The information data includes one or more of real-time processing target information data and bidirectional processing target information data between a user and a broadcaster. Method of providing linked data broadcasting service using meta data. The method of claim 1, Step a) is a-1) when the application is generated, further comprising the step of including, in the metadata, the division information of the first application that the user receives through the broadcast channel and the second application that the user receives through the return channel; C), c-1) if the application is a second application, the second application and the information data are registered with a return sending server and a return sending server registration fact is transmitted through a broadcast channel or a return channel; c-2) transmitting the second application and the information data to a user receiving end connected via return sending server location information. Method of providing linked data broadcasting service using meta data. In the linked data broadcast service providing method using meta data, a) generating, when the application is generated, metadata including distinguishing information between a first application that is transmitted through a broadcast channel and a second application that is transmitted through a return channel; b) if the application to be transmitted is the second application, the second application and the information data are registered with a return dispatch server and a return dispatch server registration fact is transmitted through a broadcast channel or a return channel; c) transmitting the second application and data to a user receiving end connected via return sending server location information. Method of providing linked data broadcasting service using meta data. The method of claim 4, wherein The distinguishing information of the first application and the second application is HttpProfileBody, and the metadata of the second application includes the HttpProfileBody information having the return sending server location information in which the second application is stored. Method of providing linked data broadcasting service using meta data. In the linked data broadcast service providing system using meta data, A content management server that stores meta data including service dependent content information that changes according to an information data type provided as an application and metadata about the application; A transmission server for transmitting the application and the metadata stored in the content management server based on organization information; An information processing server for processing and transmitting information data based on the contents of the metadata transmitted from the transmitting server; A content delivery server which transmits the meta data transmitted from the delivery server to the information processing server and receives the processed information data from the information processing server; And It includes a data encoder for transmitting the information data received from the content delivery server to the user with the application received from the delivery server; Linked data broadcasting service providing system using meta data. The method of claim 6, The information processing server may set one or more of the location of the information data, the method of bringing the information data, the period of bringing the information data, and the information data transmission period based on the transmitted metadata content. Linked data broadcasting service providing system using meta data. The method of claim 7, wherein The metadata stored in the content management server may further include distinguishing information between a first application that the user receives through a broadcast channel and a second application that the user receives through a return channel. The data encoder includes a return sending agent to separately designate a first application sending path and a second application sending path among applications transmitted from the sending server, And a return sending server for storing the second application and transmitting the stored second application to a user through a return channel according to a request. Linked data broadcasting service providing system using meta data. In the linked data broadcast service providing system using meta data, A content management server configured to store metadata including distinguishing information of a first application that the application and the user receive through the broadcast channel and a second application that the user receives through the return channel; A transmission server for transmitting the application and the metadata stored in the content management server based on organization information; A return sending agent for designating a sending path according to whether the application transmitted from the sending server is the first application or the second application, and storing the second sending application in the case of the second application; And A return sending server that stores the second application and sends the corresponding second application on a return channel upon request Linked data broadcast service providing system using a meta data comprising a. The method of claim 9, And a data encoder for transmitting the first application to a user through a broadcast channel. The return sending agent causes the first application of the applications sent from the sending server to be sent to the user by the data encoder. Linked data broadcasting service providing system using meta data. The method of claim 10, The data encoder includes the return sending agent Linked data broadcasting service providing system using meta data. The method according to any one of claims 9 to 11, The first application and the second application distinguishing information is HttpProfileBody, and the metadata of the second application includes HttpProfileBody information having the return sending server location information where the second application is stored. Linked data broadcasting service providing system using meta data.

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