KR20180125817A - Server and multi-media service device for detecting update of target site - Google Patents

Abstract

The present invention relates to a server for tracking update of at target site which comprises: a distributing unit for collecting at least one selector from a web document of a plurality of target sites, and generating selector information composed of the collected selector to distribute the selector information to a multimedia service terminal; a receiving unit for receiving a detecting record generated by detecting an element forming the web document of the plurality of target sites based on the selector information from the multimedia service terminal; and a document object model managing unit for storing a document object model (DOM) for the web document of the plurality of sites based on the detecting record.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a server and a multimedia service terminal for tracking update of a target site,

The present invention relates to a server for tracking update of a target site and a multimedia service terminal.

Internet Protocol Television (IPTV) is a bi-directional broadcasting and communication service that provides a variety of multimedia contents such as video contents such as movies and broadcast programs and Internet search to a television receiver using a high-speed Internet network. Viewers can receive a variety of contents and additional services provided by the Internet such as movie watching, home shopping, home banking, online games, and MP3, as well as browsing the Internet using a remote controller.

Korean Patent No. 10-1107319 discloses a method and system for providing an open API-based web portal service in connection with web search service through IPTV.

Recently, IPTV is providing web search service through customized UI / UX that can be browsed. However, the web search service has a disadvantage that it becomes difficult to provide a web search service through a customized UI / UX because the route and name are unavailable when a large and small reorganization is executed on a web site.

An update tracking server and a multimedia service terminal that enable web browsing in IPTV easily. And to provide a method for facilitating web browsing in a multimedia service terminal in an environment where a keyboard or a mouse is difficult to use. An update tracking server and a multimedia service terminal providing a web service that is blocked by a selector (a predefined person) of a specific area of a web document. An update tracking server and a multimedia service terminal for providing a blocked web service by actively tracking and managing a selector when a selector becomes invalid due to reorganization of a web document. It is to be understood, however, that the technical scope of the present invention is not limited to the above-described technical problems, and other technical problems may exist.

According to one embodiment of the present invention, at least one selector is collected from a plurality of target web documents of a target site, and selector information composed of the collected selectors is generated and transmitted to the multimedia service terminal A receiving unit for receiving from the multimedia service terminal a detection record generated by detecting an element constituting a web document of the plurality of target sites based on the selector information; And a document object model manager for storing a document object model (DOM) for the web document of the target site.

According to another embodiment of the present invention, there is provided a content distribution system including a distribution unit for distributing selector information including at least one selector selected from a plurality of target sites from an update tracking server, A detector for generating a detection record in accordance with whether or not an element is detected from the web document of the connected target site based on the selector information when the target site is accessed; And a multimedia service terminal including a transmission unit.

The above-described task solution is merely exemplary and should not be construed as limiting the present invention. In addition to the exemplary embodiments described above, there may be additional embodiments described in the drawings and the detailed description of the invention.

According to any one of the above-mentioned objects, there is provided an update tracking server and a multimedia service terminal that enable easy web browsing in IPTV. It is possible to provide a method of facilitating web browsing in a multimedia service terminal in an environment where a keyboard or a mouse is difficult to use. It is possible to provide an update tracking server and a multimedia service terminal that provide a web service that is blocked through a selector (a predefined person) of a specific area of a web document. It is possible to provide an update tracking server and a multimedia service terminal that provide a blocked web service by actively tracking and managing a selector when a selector becomes invalid due to reorganization of a web document.

1 is a configuration diagram of an update tracking system according to an embodiment of the present invention.
2 is a configuration diagram of an update tracking server according to an embodiment of the present invention.
3A and 3B are exemplary diagrams illustrating a process of collecting a selector from a web document of a target site in an update tracking server according to an exemplary embodiment of the present invention.
4A and 4B are exemplary diagrams illustrating a process of simplifying a rendered document object model according to an embodiment of the present invention.
FIGS. 5A and 5B are exemplary diagrams for explaining a process of updating pre-stored selector information by determining similarity between a pre-stored document object model and a rendered document object model according to an embodiment of the present invention.
FIGS. 6A and 6B illustrate an exemplary comparison between a search result page for a general web document and a search result page using a document object model for a web document according to an exemplary embodiment of the present invention.
7 is a flowchart of a method for tracking an update of a target site in an update tracking server according to an embodiment of the present invention.
8 is a configuration diagram of a multimedia service terminal according to an embodiment of the present invention.
FIG. 9 is a flowchart illustrating a method of tracking an update of a target site in a multimedia service terminal according to an exemplary embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "including" an element, it is to be understood that the element may include other elements as well as other elements, And does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

In this specification, the term " part " includes a unit realized by hardware, a unit realized by software, and a unit realized by using both. Further, one unit may be implemented using two or more hardware, or two or more units may be implemented by one hardware.

In this specification, some of the operations or functions described as being performed by the terminal or the device may be performed in the server connected to the terminal or the device instead. Similarly, some of the operations or functions described as being performed by the server may also be performed on a terminal or device connected to the server.

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

1 is a configuration diagram of an update tracking system according to an embodiment of the present invention. Referring to FIG. 1, the update tracking system 1 may include an update tracking server 110, a multimedia service terminal 120, and a display device 130. The update tracking server 110, the multimedia service terminal 120 and the display device 130 illustratively illustrate components that can be controlled by the update tracking system 1.

Each component of the update tracking system 1 of FIG. 1 is generally connected via a network. For example, as shown in FIG. 1, the update tracking server 110 may be connected to the multimedia service terminal 120 at the same time or at a time interval.

The network refers to a connection structure in which information can be exchanged between each node such as terminals and servers. The network includes a local area network (LAN), a wide area network (WAN), a wide area network (WWW) Wide Web, wired / wireless data communication network, telephone network, wired / wireless television communication network, and the like. Examples of wireless data communication networks include 3G, 4G, 5G, 3GPP, LTE, WIMAX, Wi-Fi, Bluetooth, infrared, Communications, Visible Light Communication (VLC), LiFi, and the like.

The update tracking server 110 may collect at least one selector from web documents of a plurality of target sites, generate selector information composed of the collected selectors, and distribute the generated selector information to the multimedia service terminal 120. Here, the target site refers to a web site, a web document, a web page, and the like, to which a web browsing service, a web search service, and the like are to be provided through the multimedia service terminal 120. The web document of the target site is displayed on the display device 130 through the multimedia service terminal 120. In addition, the focus moving operation and the browsing operation can be controlled through the remote controller 125, voice input, gesture input, and the like on the web site of the target site.

The update tracking server 110 may receive detection records generated by the detection of the elements constituting the web documents of the plurality of target sites from the multimedia service terminal 120 based on the selector information. Here, the detection record may include at least one selector detected from an area corresponding to an element related to selector information among a plurality of elements constituting a URL of a plurality of target sites and a plurality of web documents of a target site.

The update tracking server 110 may store a document object model (DOM) for a plurality of target sites of the web document based on the detection record. For example, the update tracking server 110 may render a document object model for a web document of a plurality of target sites in a virtual browser, and store the rendered document object model. At this time, the simplified document object model can be stored by replacing the text area of the rendered document object model with one or more substitute characters, or by deleting a part corresponding to a predetermined command in the attribute area. The update tracking server 110 also maps the rendered document object model to URLs for a plurality of target sites, and corresponds to a plurality of regions of the rendered document object model and at least one detected selector corresponding to the plurality of regions .

When it is determined that at least one target site among a plurality of target sites corresponding to the service request input through the multimedia service terminal 120 has been updated, the update tracking server 110 updates the selected target site according to the update from the updated target site To update the selector information and the document object model. Here, the service request may be input through the remote controller 125 that is interlocked with the multimedia service terminal 120 or the multimedia service terminal 120.

For example, if the update tracking server 110 fails to detect an element from a web document of a target site of any one of a plurality of target sites by the multimedia service terminal 120, It is possible to receive an error occurrence message for the failed target site. In this case, when receiving the error occurrence message, the document object model for the web document of the target site corresponding to the error occurrence message is rendered in the virtual browser, and the degree of similarity between the rendered document object model and the previously stored plurality of document object models And may detect an area determined from the rendered document object model and a previously stored plurality of document object models and a predetermined similarity degree or more.

The update tracking server 110 can detect the selector again from the detected area and update the previously stored selector information based on the detected selector again. At this time, the update tracking server 110 can detect the selector from the detected area again with the same structure as the previously stored selector information with respect to the target site corresponding to the error occurrence message.

The update tracking server 110 may distribute the updated selector information to the multimedia service terminal 120 when the selector information is updated.

The multimedia service terminal 120 can receive the selector information including the selectors collected from the plurality of target sites from the update tracking server 110. [

When the multimedia service terminal 120 accesses one of the target sites of a plurality of target sites according to a service request received from the user, the multimedia service terminal 120 determines whether or not the element is detected from the web document of the connected target site based on the selector information A detection record can be generated. For example, the multimedia service terminal 120 detects at least one selector from a region corresponding to an element related to the selector information among a plurality of elements constituting the URL of the connected target site and the web document of the connected target site Generate a detection record, and transmit the generated detection record to the update tracking server 110. [

When the multimedia service terminal 120 fails to detect the element from the web document of the connected target site, the multimedia service terminal 120 may transmit an error occurrence message for the target site that has failed detection to the update tracking server 110. Here, in the case where the element detection fails, it may mean that the selector corresponding to the selector information is not detected from the website of the connected target site.

When the selector information is updated based on the selector extracted from the target site that has failed to be detected, the multimedia service terminal 120 can receive the updated selector information from the update tracking server 110 again. At this time, if the updated selector information is distributed, the multimedia service terminal 120 may re-detect the element from the web document of the target site that has failed detection based on the updated selector information.

The display device 130 may output UI / UX required for retrieving image contents, a search result page, a web page of a target site, and a web document corresponding to a service request input from a user.

2 is a configuration diagram of an update tracking server according to an embodiment of the present invention. Referring to FIG. 2, the update tracking server 110 may include a distribution unit 210, a receiving unit 220, and a document object model management unit 230.

The distribution unit 210 may collect the selectors from the web documents of the plurality of target sites. Also, the distribution unit 210 can generate selector information composed of the collected selectors. The process of collecting the selectors from the web documents of a plurality of target sites and generating the selector information will be described in detail with reference to FIGS. 3A and 3B.

3A and 3B are exemplary diagrams illustrating a process of collecting a selector from a web document of a target site in an update tracking server according to an exemplary embodiment of the present invention.

3A is an exemplary diagram showing a search result screen retrieved from a portal site according to an embodiment of the present invention. Referring to FIG. 3A, a user can search for a "memory management program" in the portal site through the multimedia service terminal 120. [

3B is an exemplary diagram illustrating a process of collecting a selector for a first search result among search results according to an embodiment of the present invention. 3A and 3B, a selector for the first search result 300 among the search results of the "memory management program" may be collected. The first search result 300 corresponds to an element constituting the web document and the selector can be collected from the source code of the web document corresponding to the first search result 300. [ The selectors may include, for example, '# rso' 310, '.srg' 320, '.mnr-c' For example, the distribution unit 210 may generate selector information composed of collected selectors. The selector information may include, for example, information about an id / element / object.

3B, among the children of the element whose id is 'rso' through the selector information composed of 'id = rso', 'class = srg', and 'class = mnr-c', 'class' You can find all the children of all elements whose class name is 'mnr-c'. Here, the selector information can be used as a kind of selection query in a similar JS library such as jQuery.

Returning to FIG. 2, the distributor 210 may generate selector information composed of selectors and distribute the selector information to the multimedia service terminal 120. At this time, at the time of initial distribution, the distribution unit 210 can distribute each selector by embedding it in a contents script. Also, when the selector information is updated, the distributing unit 210 may distribute the updated selector information to the multimedia service terminal 120 again. At this time, the distribution unit 210 can distribute the query corresponding to the selector information only when the selector information is updated.

The receiving unit 220 can receive, from the multimedia service terminal 120, detection records generated by the detection of the elements constituting the web documents of a plurality of target sites, based on the selector information. Here, the detection record may include a selector that is detected from an area corresponding to an element related to selector information among a plurality of elements constituting a URL of a plurality of target sites and a plurality of web documents of a target site. For example, when searching for a "memory management program" on a portal site A, the selector corresponding to the search result on the portal A site includes a total of ten selectors A to J, but in the current user's site, The selector D, and the selector F, a detection record for a total of three selectors can be received from the multimedia service terminal 120.

When the multimedia service terminal 120 fails to detect the element from the web document of any one of the target sites by the multimedia service terminal 120, the receiver 220 detects failure from the multimedia service terminal 120 It is possible to receive an error occurrence message for the target site.

The document object model management unit 230 may store a document object model (DOM) for the web documents of a plurality of target sites based on the detection record. Specifically, the document object model management unit 230 may render a document object model for a web document of a plurality of target sites in a virtual browser, and store the rendered document object model. Here, the virtual browser is not visualized through the UI, but may be loaded on the memory.

The document object model management unit 230 may store the simplified document object model by replacing the text area of the rendered document object model with one or more substitute characters or deleting a part corresponding to a predetermined command in the attribute area. For example, the document object model managing unit 230 may store the document object model by replacing the text area of the rendered document object model with specific alphabetical characters. For example, the document object model management unit 230 may store the document object model by deleting the id, class, href, and onclick corresponding to the predetermined command in the attribute area. The process of simplifying the document object model will be described in detail with reference to FIGS. 4A and 4B.

4A and 4B are exemplary diagrams illustrating a process of simplifying a rendered document object model according to an embodiment of the present invention.

4A is an exemplary diagram illustrating a search result screen searched on a portal site according to an embodiment of the present invention. Referring to FIG. 4A, the update tracking server 110 may search a portal site for a "memory management program " input from a user, and store a document object model for a web document as a search result.

4B is an exemplary diagram illustrating a process of simplifying a document object model according to an embodiment of the present invention. Referring to FIG. 4B, the update tracking server 110 may store the simplified document object model by replacing the text area of the rendered document object model with 'A'.

Thus, by storing the simplified document object model, it is possible to compress the web document, and even if the result of the search engine is updated, the degree of similarity between the configuration forms of the simplified document object model, .

In other words, even if the present invention is the same URL, a page whose content changes according to time can be targeted. Accordingly, since the position and size of a block to be tracked can be changed at any time, it is possible to perform tracking of a block in a web document based on the similarity to the configuration type of the document object model rather than the size of the structure in the web document.

2, the document object model managing unit 230 associates the rendered document object model with the URL, associates the plurality of regions of the rendered document object model with at least one detected selector corresponding to the plurality of regions Can be stored. For example, the document object model management unit 230 may include a URL object such as {URL: url, {Selector: #id .class .class, structure, , {Selector: ...} ...} can be stored corresponding to the rendered document object model, URL, and selector.

When receiving the error occurrence message from the multimedia service terminal 120, the document object model management unit 230 renders the document object model for the web document of the target site corresponding to the error occurrence message in the virtual browser, The degree of similarity between the model and a plurality of previously stored document object models can be determined. In addition, the document object model management unit 230 can simplify the rendered document object model and the previously stored plurality of document object models, and determine the similarity between the simplified document object models. At this time, the document object model management unit 230 may detect at least one region that is determined to be equal to or greater than a predetermined degree of similarity. The process of determining the degree of similarity will be described in detail with reference to FIGS. 5A and 5B.

FIGS. 5A and 5B are exemplary diagrams for explaining a process of updating pre-stored selector information by determining similarity between a pre-stored document object model and a rendered document object model according to an embodiment of the present invention.

5A is an exemplary diagram illustrating a pre-stored document object model according to an embodiment of the present invention. Referring to FIG. 5A, the pre-stored document object model includes a dom, a structure, a selector, and may include pre-stored selector information 500. The pre-stored selector information 500 may be, for example, a structure including ["id "," class ", "class"

5B is an exemplary diagram illustrating a rendered document object model in accordance with an embodiment of the present invention. Referring to FIGS. 5A and 5B, the document object model management unit 230 may determine the similarity between the rendered document object model and the pre-stored document object model. For example, if pre-stored selector information 500 is not detected in the web document of the target site, the document object model manager 230 renders the entire target site in the virtual browser, The candidate document object model 520 can be detected by searching an area having the highest degree of similarity with the document object model 510.

For example, the document object model management unit 230 may detect a new selector for the candidate document object model 520 configured as follows.

{URL: url,

   {

      selector: "#id .class .class",

      structure: "id class class",

      dom: DOM element},

   {

      selector2: ...},

   {selector3: ...} ...}

The document object model management unit 230 can detect the 'selector' of the candidate document object model 520 in the same form as the 'structure' 500 of the document object model previously stored in the candidate document object model 520 have.

Returning to FIG. 2, the document object model managing unit 230 may detect the selector again from the detected area, and update the previously stored selector information based on the detected selector again.

The document object model management unit 230 can detect the selector from the detected area again with the same structure as the previously stored selector information with respect to the target site corresponding to the error occurrence message.

FIGS. 6A and 6B illustrate an exemplary comparison between a search result page for a general web document and a search result page using a document object model for a web document according to an exemplary embodiment of the present invention.

6A is an exemplary diagram illustrating a search result page for a conventional general web document. 6A, when the multimedia service terminal 120 receives a search word 'memory management program' 600 from a user, the multimedia service terminal 120 displays a search result screen 610 corresponding to the search word through the display device 130 can do.

6B is an exemplary diagram illustrating a search result page displayed using a document object model for a web document according to an embodiment of the present invention. Referring to FIG. 6B, the multimedia service terminal 120 may display a search result corresponding to the "memory management program" 600 as a document object modeled search result screen through the display device 130. [ The document object modeled search result screen may display a plurality of search result areas in different colors and may be displayed in order. Further, even if the layout and structure of the site are changed, it is possible to provide a search page in which the document object is modeled. This makes it possible for the user to easily move or browse the focusing area on the search result screen through the remote controller, voice input, gesture input, etc., even in an environment where the use of a keyboard or a mouse is difficult.

7 is a flowchart of a method for tracking an update of a target site in an update tracking server according to an embodiment of the present invention. The method for tracking the update of the target site performed by the update tracking server 110 shown in FIG. 7 includes steps that are processed in a time-series manner in the update tracking system 1 according to the embodiment shown in FIGS. 1 to 6B . Accordingly, the following description also applies to a method of tracking an update of a target site performed by the update tracking system 1 according to the embodiment shown in Figs. 1 to 6B.

In step S710, the update tracking server 110 may collect at least one selector from the web documents of the plurality of target sites.

In step S720, the update tracking server 110 may generate selector information composed of the collected selectors and distribute the selector information to the multimedia service terminal 120. [

In step S730, the update tracking server 110 may receive, from the multimedia service terminal 120, a detection record, which is generated by detecting an element constituting a web document of a plurality of target sites, based on the selector information.

In step S740, the update tracking server 110 may store the document object model for the web documents of the plurality of target sites based on the detection record.

In the above description, steps S710 to S740 may be further divided into further steps or combined into fewer steps, according to an embodiment of the present invention. In addition, some of the steps may be omitted as necessary, and the order between the steps may be switched.

8 is a configuration diagram of a multimedia service terminal according to an embodiment of the present invention. Referring to FIG. 8, the multimedia service terminal 120 may include a distribution unit 810, a detection unit 820, and a transmission unit 830.

The distribution unit 810 may receive distributor information including at least one selector collected from a plurality of target sites from the update tracking server 110. For example, at the time of initial distribution, the distribution unit 810 can receive the content script having the respective selectors from the update tracking server 110.

The distributing unit 810 can receive the updated selector information from the update tracking server 110 again when the selector information is updated based on the selector extracted from the target site that has failed detection. For example, the distribution unit 810 can receive the query corresponding to the updated selector information again.

The detection unit 820 detects whether or not an element is detected from the web document of the connected target site based on the selector information when accessing any one of the plurality of target sites according to a service request received from the user, Can be generated. Specifically, the detecting unit 820 can detect a selector from an area corresponding to the element related to the selector information among the plurality of elements constituting the URL of the connected target site and the web document of the connected target site, have. For example, the detecting unit 820 can detect a selector from a partial area corresponding to an element of the web document of the target site, based on the selector information defined in advance. For example, when the layout of the visual layout, the structure of the element, and the attribute information are changed by the reorganization of the target site, the element region associated with the predefined selector information is not detected. Therefore, Since the detection result is '0' even though it is an object, the detection failure of the element can be derived. Here, when the detection of the element fails, it may include a case in which a selector corresponding to the selector information is not detected from the website of the connected target site. In other words, when the detection of the element fails, it may mean that the connected target site is updated unintentionally so that the selector constituting the target site has been updated. Therefore, the present invention can provide a system for detecting an option so that the target site can be updated dynamically even if it is updated unintentionally.

When the updated selector information is distributed, the detecting unit 820 can re-detect the element from the web document of the target site that has failed detection based on the updated selector information. The transmitting unit 830 may transmit the generated detection record to the update tracking server 110. If the transmission unit 830 fails to detect an element from the web document of the connected target site, the transmission unit 830 may transmit an error occurrence message for the target site whose detection has failed to the update tracking server 110.

FIG. 9 is a flowchart illustrating a method of tracking an update of a target site in a multimedia service terminal according to an exemplary embodiment of the present invention. The method of tracking the update of the target site performed by the multimedia service terminal 120 shown in FIG. 9 is the same as that of the update tracking system 1 according to the embodiment shown in FIGS. 1 to 8 . Accordingly, the following description also applies to the method of tracking update of the target site performed by the multimedia service terminal 120 performed by the update tracking system 1 according to the embodiment shown in Figs. 1 to 8 do.

In step S910, the multimedia service terminal 120 may distribute selector information including at least one selector collected from a plurality of target sites from the update tracking server 110. [

In step S920, when the multimedia service terminal 120 accesses one of the target sites of the plurality of target sites according to the service request received from the user, it is determined whether the element is detected from the web document of the connected target site based on the selector information It is possible to generate a detection record according to whether or not it is detected.

In step S930, the multimedia service terminal 120 may transmit the generated detection record to the update tracking server 110. [

In the above description, steps S910 to S930 may be further divided into further steps or combined into fewer steps, according to an embodiment of the present invention. In addition, some of the steps may be omitted as necessary, and the order between the steps may be switched.

The update tracking server and the method of tracking an update of a target site in a multimedia service terminal described with reference to Figs. 1 to 9 may be performed by a computer program stored in a medium executed by a computer, or in the form of a recording medium including instructions executable by the computer . ≪ / RTI > In addition, the update tracking server and the method of tracking the update of the target site in the multimedia service terminal described with reference to Figs. 1 to 9 can also be implemented in the form of a computer program stored in a medium executed by a computer.

Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. The computer-readable medium may also include computer storage media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

110: Update Tracking Server
120: Multimedia service terminal
125: Remote control
130: Display device
210: Distributor
220:
230: Document object model management unit
810:
820:
830:

Claims (19)

A server for tracking updates of a target site,
A distribution unit for collecting at least one selector from web documents of a plurality of target sites, generating selector information composed of the collected selectors, and distributing the generated selector information to the multimedia service terminal;
A receiving unit for receiving, from the multimedia service terminal, detection records generated by detecting elements constituting a web document of the plurality of target sites based on the selector information; And
And a document object model manager (DB) for storing a document object model (DOM) for a web document of the plurality of target sites based on the detection record
The update tracking server.
The method according to claim 1,
When the update tracking server determines that at least one target site among the plurality of target sites corresponding to the service request input through the multimedia service terminal has been updated, the update tracking server extracts the changed selector according to the update from the updated target site And updates the selector information and the document object model.
3. The method of claim 2,
The service request is input through a remote controller interlocked with the multimedia service terminal or the multimedia service terminal,
Wherein an image content or a search result page corresponding to the service request is displayed through a display device connected to the multimedia service terminal.
The method according to claim 1,
Wherein the document object model management unit renders a document object model for a web document of the plurality of target sites in a virtual browser, and stores the rendered document object model.
5. The method of claim 4,
Wherein the document object model management unit stores the simplified document object model by replacing a text area of the rendered document object model with one or more substitute characters or by deleting a part corresponding to a predetermined command in an attribute area.
The method according to claim 1,
Wherein the detection record includes at least one selector that is detected from an area corresponding to an element related to the selector information among a plurality of elements constituting a URL of the plurality of target sites and a web document of the plurality of target sites Tracking server.
The method according to claim 6,
Wherein the document object model manager associates the rendered document object model with the URL and stores the plurality of regions of the rendered document object model and the at least one detected selector corresponding to the plurality of regions in association with each other, Update tracking server.
The method according to claim 1,
When the multimedia service terminal fails to detect the element from the web document of any one of the plurality of target sites, the receiver receives from the multimedia service terminal an error occurrence message The update tracking server.
9. The method of claim 8,
When receiving the error occurrence message, the document object model management unit renders a document object model for a web document of a target site corresponding to the error occurrence message in a virtual browser, and extracts a plurality of previously stored document object models from the rendered document object model And detects at least one region determined as a document object model and a predetermined similarity or more.
10. The method of claim 9,
Wherein the document object model management unit determines similarity between the rendered document object model and the previously stored plurality of document object models.
10. The method of claim 9,
The document object model management section detects the selector again from the detected area, and updates the pre-stored selector information based on the detected selector again.
12. The method of claim 11,
Wherein the document object model management unit again detects the selector from the detected region with a structure identical to the previously stored selector information in relation to the target site corresponding to the error occurrence message.
12. The method of claim 11,
Wherein the distributing unit distributes the updated selector information back to the multimedia service terminal when the selector information is updated.
1. A multimedia service terminal for tracking an update of a target site,
A distribution unit for distributing selector information including at least one selector collected from a plurality of target sites from an update tracking server;
Generating a detection record according to whether or not an element is detected from a web document of the connected target site based on the selector information when the target site is accessed to any one of the plurality of target sites according to a service request received from a user ; And
And a transmission unit for transmitting the generated detection record to the update tracking server
The multimedia service terminal.
15. The method of claim 14,
Wherein the detecting unit detects at least one selector from an area corresponding to an element related to the selector information among a plurality of elements constituting a URL of the connected target site and a web document of the connected target site to generate the detection record A multimedia service terminal.
15. The method of claim 14,
When the detection of the element from the connected web site of the target site fails, the transmission unit transmits an error occurrence message for the target site whose detection has failed to the update tracking server.
17. The method of claim 16,
And a case where a selector corresponding to the selector information is not detected from the web site of the connected target site when the detection of the element fails.
17. The method of claim 16,
Wherein the distributing unit redistributes the updated selector information from the update tracking server when the selector information is updated based on a selector extracted from the target site that has failed detection.
19. The method of claim 18,
Wherein when the updated selector information is distributed, the detecting unit re-detects the element from the web document of the target site whose detection has failed based on the updated selector information.

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