KR20130107486A - Apparatus and method for monitoring content - Google Patents

Apparatus and method for monitoring content Download PDF

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Publication number
KR20130107486A
KR20130107486A KR1020120029314A KR20120029314A KR20130107486A KR 20130107486 A KR20130107486 A KR 20130107486A KR 1020120029314 A KR1020120029314 A KR 1020120029314A KR 20120029314 A KR20120029314 A KR 20120029314A KR 20130107486 A KR20130107486 A KR 20130107486A
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KR
South Korea
Prior art keywords
header
download
data
mot
information
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Application number
KR1020120029314A
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Korean (ko)
Inventor
최지훈
양규태
차지훈
김진웅
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한국전자통신연구원
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Priority to KR1020120029314A priority Critical patent/KR20130107486A/en
Publication of KR20130107486A publication Critical patent/KR20130107486A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/29—Arrangements for monitoring broadcast services or broadcast-related services
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4425—Monitoring of client processing errors or hardware failure

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

PURPOSE: A content monitoring apparatus and a method thereof are provided to provide a digital multimedia broadcasting (DMB) file casting service by transmitting and receiving bulk supplementary data in a DMB environment. CONSTITUTION: A first decoder (110) divides one or more broadcast packet stream data and outputs to one or more data groups. A data group managing unit (120) classifies one or more of header information according to one or more data groups. The data group managing unit extracts download map information which corresponds to each of header information. A second decoder (130) analyzes a body of a multimedia object transmission (MOT) header which is included in the download map information. The second decoder extracts the expansion parameter of the MOT header and the download map information. A download monitoring unit (140) comprises and stores the download map information based on each of the header information and the expansion parameter of the MOT header. [Reference numerals] (110) First decoder; (120) Data group managing unit; (130) Second decoder; (140) Download monitoring unit; (AA) Stream data; (BB) File casting contents

Description

Content monitoring device and method {APPARATUS AND METHOD FOR MONITORING CONTENT}

Embodiments of the present invention relate to a monitoring apparatus and method for downloading, storing, and managing contents of a transmission frame structure for digital multimedia broadcasting (DMB) file casting.

DMB broadcasting has typically been a simple download service that specializes in the form of audio, slide shows, text messages, video, graphics, text, and additional data combining the respective components.

In the age of broadcasting and telecommunications, where broadcasting and telecommunications are converged, information and contents are converged, media consumption patterns are becoming more personalized, and the participation, spread, and sharing by individuals are accelerated, various types of contents are combined in various forms. Now you have the content of.

DMB- is a common framework that can contain all of these diverse contents, store descriptions of the contents themselves, that is, metadata together, and enable the protection and distribution management of the contents as necessary, thus creating new business opportunities. The standardization of the file format called AF is complete.

Here, DMB-AF is a standard file format dedicated to DMB content based on MPEG-4 Part 12 ISO Base Media File Format for enjoying DMB contents, and systematically expresses and effectively stores various types of terrestrial DMB and satellite DMB contents. Techniques for accessing, safeguarding and distributing are included.

The DMB-AF standard not only provides a common framework for creating diverse business opportunities in broadcasting convergence environment by appropriately linking various DMB contents, but also allows users to select a desired program at a desired time through a storage medium. Various types of multimedia services are possible, such as a customized service for viewing on a device and an interactive service that enables two-way communication between a user and a content provider.

As such, today's DMB broadcasts contain a variety of user events that may occur during the download of content, such as channel changes, reception terminations, reception waits, and receptions, in order for various types and mass media content to be provided through DMB filecasting services. It should be able to deal with cancellation and minimize the error of receiving download data.

To this end, the DMB receiver should be able to temporarily store and manage the download completion information for the existing downloaded file or pieces of content when the download is not completed.

When the viewer finishes watching DMB broadcasting of another channel, the DMB receiver should be able to connect and download from the point where the download is stopped, or re-receive from the part not received through the bidirectional channel.

Therefore, if AT-DMB broadcasting starts in earnest, the bandwidth for additional data transmission in the DMB broadcasting environment will be expanded, and large-capacity multimedia data transmission such as a file casting service is essential, and a system more sensitive to various user events and reception errors is required. Will require.

In general DMB broadcasting service, there is no minimal monitoring of additional data transmission / reception periodically.

In the T-DMB broadcasting environment that is currently being serviced, a large amount of additional data is rarely transmitted / received. Therefore, a low-capacity data service such as text has been common. In the same high quality / multi-functional mobile broadcasting environment, there is a need for technology development for monitoring reception status of additional data, storing and managing received content, and improving download error.

One embodiment of the present invention is to provide a DMB file casting service for transmitting and receiving a large amount of additional data in a DMB environment.

An embodiment of the present invention provides a method for monitoring reception status of content, storing and managing content, and improving download error in a high quality multifunctional mobile broadcasting environment in which additional data bandwidth is expanded and a large amount of additional data service is provided.

An apparatus for monitoring content according to an embodiment of the present invention includes a first decoder for dividing one or more broadcast packet stream data and outputting the data into one or more data groups, and classifying one or more header information for each of the one or more data groups, respectively, A data group management unit which extracts download map information corresponding to the information, and analyzes a body of a multimedia object transmission (MOT) header included in the download map information to determine an extension parameter of the download map information and the MOT header. And a download monitoring unit configured to configure and store the download map information based on the extracted second decoder and the respective header information and the extension parameter of the MOT header.

The content monitoring method according to an embodiment of the present invention comprises the steps of: dividing one or more broadcast packet stream data into one or more data groups, dividing one or more header information for each of the one or more data groups, Extracting corresponding download map information, analyzing a body of a multimedia object transmission (MOT) header included in the download map information, extracting the download map information and extension parameters of the MOT header; And configuring and storing the download map information based on the header information and the extension parameter of the MOT header.

According to an embodiment of the present invention can provide a DMB file casting service for transmitting and receiving a large amount of additional data in a DMB environment.

According to an embodiment of the present invention, it is possible to provide a reception state monitoring, content storage and management, and download error improvement method for additional data in a high quality multifunctional mobile broadcasting environment in which additional data bandwidth is expanded and a large amount of additional data service is provided.

1 is a block diagram showing the configuration of a content monitoring apparatus according to an embodiment of the present invention.
2 is a flowchart illustrating a content monitoring method according to an embodiment of the present invention.
3 is a diagram illustrating an example of download map information according to an embodiment of the present invention.
4 is a diagram illustrating an example of an extension parameter of a MOT header according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and accompanying drawings, but the present invention is not limited to or limited by the embodiments.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terminology used herein is a term used for appropriately expressing an embodiment of the present invention, which may vary depending on the user, the intent of the operator, or the practice of the field to which the present invention belongs. Therefore, the definitions of the terms should be made based on the contents throughout the specification.

1 is a block diagram showing the configuration of a content monitoring apparatus according to an embodiment of the present invention.

Content monitoring apparatus according to an embodiment of the present invention, the first decoder 110 for dividing one or more broadcast packet stream data to output to one or more data groups, and distinguishes one or more header information for each of the one or more data groups, The data group manager 120 extracting download map information corresponding to each header information, and analyzes a body of a multimedia object transmission (MOT) header included in the download map information to analyze the body of the download map information and the download map information. The second decoder 130 extracts the extension parameter of the MOT header and the download monitoring unit 140 configures and stores the download map information based on the respective header information and the extension parameter of the MOT header.

Hereinafter, a method of monitoring content using the above-described content monitoring apparatus will be described.

2 is a flowchart illustrating a content monitoring method according to an embodiment of the present invention.

1 and 2, the content monitoring apparatus according to an embodiment of the present invention divides one or more broadcast packet stream data and outputs them to one or more data groups (210).

For example, the first decoder 110 according to an embodiment of the present invention may receive and analyze DMB packet stream data as broadcast packet stream data, and divide and output the DMB packet stream data for each data group.

In this case, the data group may be a data group related to MSC (Mobile, Social, Cloud) data. However, the data group is not limited thereto.

In operation 220, the content monitoring apparatus classifies one or more header information for each of the one or more data groups, and extracts download map information corresponding to each header information.

The data group manager 120 according to an embodiment of the present invention may analyze header information including data group type information of an input data group and classify the data into corresponding data groups.

3 is a diagram illustrating an example of download map information according to an embodiment of the present invention.

The data group manager 120 according to an embodiment of the present invention extracts data from the divided data group and analyzes the session header and segment header information included in the data, and then includes the EnsembleECC, EId, ServiceECC, and Sid shown in FIG. 3. Download map information such as SCIdS, Data Group Type, Transport ID, and DownloadFlag may be transmitted to the download monitoring unit 140.

In this case, the extracted data may be MSC (Mobile, Social, Cloud) data, but is not limited thereto.

The data group manager 120 according to an embodiment of the present invention may continuously monitor the Data Group Type and extract only the corresponding part when the MOT header body is downloadable and transmit it to the second decoder 130.

The content monitoring apparatus according to an embodiment of the present invention analyzes a body of a multimedia object transmission (MOT) header included in the download map information, and extracts the download map information and the extension parameter of the MOT header. (230).

4 is a diagram illustrating an example of an extension parameter of a MOT header according to an embodiment of the present invention.

The second decoder 130 according to an embodiment of the present invention preferentially analyzes only the MOT header body extracted by the data group manager 120, and then analyzes ContentName and Parent Service information included in the information illustrated in FIGS. 3 and 4. It may be delivered to the download monitoring unit 140.

The content monitoring apparatus according to an embodiment of the present invention configures and stores the download map information based on the respective header information and the expansion parameter of the MOT header (240).

According to an aspect of the present invention, the download monitoring unit 140 includes main indexing information such as transport ID and segment number of a session header, a repeat count and segment size of a segment header, and 'ContentName' and 'ParentService' in a MOT header extension. You can configure the download map information of the DMB file casting content received based on the parameter.

In addition, the download monitoring unit 140 according to an embodiment of the present invention may store the binary MSC data as it is or temporarily store only the pure data portion except the segment information in the local storage device.

In this case, the content monitoring apparatus according to an embodiment of the present invention may systematically store and manage additional data of all channels when the download map information is stored in a hierarchical structure.

When the download data group manager 120 according to an embodiment of the present invention downloads all data using the download map information, the download data group manager 120 may transmit a completion message to the second decoder 130.

When the second decoder 130 according to an embodiment of the present invention receives the completion message from the data group manager 120, the second decoder 130 receives data from the local storage device based on the configuration map information and the location information included in the completion message. MOT body can be configured.

According to an aspect of the present invention, the content files for the DMB file casting service may be repeatedly transmitted through a packet mode subchannel as a multimedia object transfer (MOT) carousel by the multimedia object transfer (MOT) directory mode. .

In this case, a subchannel through which files based on DMB-Application Format (AF) are transmitted may be referred to as a “filecasting channel”.

According to one aspect of the present invention, the content files are each transmitted as a multimedia object transfer (MOT) object in a filecasting channel, and the multimedia object transfer (MOT) directory object may carry a list of multimedia object transfer (MOT) objects.

According to one aspect of the present invention, multimedia object transfer (MOT) parameters to be applied to an individual multimedia object transfer (MOT) object may be transmitted in multimedia object transfer (MOT) header information, which is a separate item in the multimedia object transfer (MOT) directory.

According to one aspect of the present invention, the MOT header information may be composed of a multimedia object transport (MOT) header core and a multimedia object transport (MOT) header extension.

For example, the content monitoring apparatus according to an aspect of the present invention may set the ContentsType and ContentSubType field values of the multimedia object transmission (MOT) header core to “000000” and “00000000”, respectively, as binarization values.

According to one aspect of the present invention, the PermitOutdatedVersions, Expiration, ContentName, CompressionType, UniqueBodyVersion, and CAInfo parameters described in the download map information shown in FIG. 3 may be utilized according to the existing multimedia object transport (MOT) standard.

According to one aspect of the invention, the ContentName parameter must be the same as the downloaded file name and can be unique within the multimedia object transfer (MOT), the same as the broadcast program name described in the DMB Electronic Content Announcement (ECG) metadata and The extension name can be set to “dmb”.

According to one aspect of the present invention, the 'ContentDescription' parameter is an essential parameter of the multimedia object transmission (MOT) object and describes title name information of the transmitted content.

The title name information of the content follows the UTF-8 encoding method which is a general purpose conversion format, and the maximum size may be limited to 512 bytes, and may be described in the <Title> or <ShortTitle> element of DMB Electronic Content Guide (ECG) metadata. It can be the same as the content.

According to one aspect of the present invention, the 'ContentCategory' parameter is an optional parameter of the multimedia object transmission (MOT) object and may describe genre information of the downloaded content file.

The genre information of the content file follows the UTF-8 encoding method and the maximum size may be limited to 256 bytes. When the 'ContentCategory' parameter is used, the content and description of the <Genre> element of the DMB electronic content guide (ECG) metadata It may be the same as the method.

According to an aspect of the present invention, the 'ParentService' parameter is an optional parameter of the multimedia object transmission (MOT) object and may describe connection information between a video / audio service and a data service related to the downloaded content.

The connection information may be in accordance with the DMB electronic content guide (ECG) locator description.

According to one aspect of the present invention, the 'AvailabilityStart' parameter is an optional parameter of a multimedia object transfer (MOT) object and may describe date and time information to be transmitted of a content file transmitted through a file casting channel.

The 'AvailabilityStart' parameter may be used when the date and time of the parameter are future, but are not included in the current carousel transmission but provide information to the receiver so that the content file can be downloaded at the corresponding time.

The 'AvailabilityStart' parameter may mean that the date and time of the parameter are included in the carousel currently being transmitted if they are not defined in the past.

The 'AvailabilityStart' parameter information is more useful for service scenarios that require periodic updates.

According to an aspect of the present invention, a content monitoring apparatus includes parameter information (ContentName, ParentService) of MOT header extension, information of FIG (EnsembleECC, EId, ServiceECC, Sid, SCIdS), MSC Data Group Type, and Transport id information. The status of the downloaded content can be monitored by using the data, for example, the download degree (%), the download status (error), the download content list information, and the like.

Embodiments according to the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as a hard disk, a floppy disk, and a magnetic tape; optical media such as CD-ROM and DVD; magnetic recording media such as a floppy disk; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by specific embodiments such as specific components and the like. For those skilled in the art, various modifications and variations are possible from these descriptions. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

110: first decoder
120: data group management
130: second decoder
140: download monitoring unit

Claims (1)

A first decoder for dividing one or more broadcast packet stream data into one or more data groups;
A data group manager for classifying one or more header information for each of the one or more data groups and extracting download map information corresponding to each header information;
A second decoder configured to analyze a body of a multimedia object transmission (MOT) header included in the download map information and extract extension information of the download map information and the MOT header; And
A download monitoring unit configured to store and download the download map information based on the header information and the extension parameter of the MOT header
Content monitoring device comprising a.
KR1020120029314A 2012-03-22 2012-03-22 Apparatus and method for monitoring content KR20130107486A (en)

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KR1020120029314A KR20130107486A (en) 2012-03-22 2012-03-22 Apparatus and method for monitoring content

Applications Claiming Priority (1)

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KR20130107486A true KR20130107486A (en) 2013-10-02

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