KR20110067923A - Performance estimation system and method for iptv interactive broadcasting program - Google Patents

Abstract

PURPOSE: An IPTV bidirectional broadcasting program performance evaluation system and method thereof are provided to evaluate the service performance of an IPTV bidirectional broadcasting program performance without using log information of an IPTV bidirectional broadcasting program service. CONSTITUTION: A control signal generator(104) transmits a control signal for the reception of an IPTV bidirectional broadcast program to a STB(Set Top Box)(108) according to a previously designated scenario. An image signal receiving unit(103) receives an image signal of the IPTV bidirectional broadcast program from the STB. A control unit(102) determines the service failure of an IPTV bidirectional broadcast program based on an image that is received to the image signal receiving unit.

Description

Performance Estimation System And Method for IPTV Interactive Broadcasting Program

The present invention relates to a system and method for evaluating performance of an IPTV bidirectional broadcast program, and more particularly, to quantitatively measure performance of a specific broadcast program without using log information on an IPTV bidirectional broadcast program generated in a set-top box receiving an IPTV bidirectional broadcast program. The present invention relates to an IPTV interactive broadcasting program performance evaluation system and method that can accurately and reliably evaluate and fully reflect a user's usage behavior in performance evaluation.

Recently, with the convergence of broadcasting and communication technology, IPTV, which is gaining worldwide attention as a new media means, is a two-way service that can interact with viewers rather than unilaterally transmitting programs like conventional TV broadcasting. The IPTV two-way broadcasting service uses a two-way digital broadcast signal transmitted through a broadband cable network, and requires software and a set-top box capable of handling the viewer's request for a broadcast medium. IPTV is connected to a set-top box that processes IP video signals and converts them into standard TV signals. When using a switched video service (SVS) system, IPTV can be used for services such as broadband network channels, subscriber services, and movie watching. Can be connected selectively.

According to the IPTV bidirectional broadcasting service, the content server divides audio and video data into digital data into packets according to the Internet Protocol (IP), and then transmits the data to each client through the Internet. The set-top box, which acts as a client, merges audio and video data packets received from the server into audio and video data completed by the Internet protocol and converts them into analog and provides them to analog display devices, or digital audio and The video data is directly provided to the digital display device.

However, an IP network providing an IP bidirectional broadcasting service does not guarantee QoS (Quality of Service) because it provides a service according to a best effort method. Therefore, when the number of users increases and data is congested or there is a traffic failure, there is a problem that the quality of service is deteriorated due to packet loss and error insertion. In particular, due to the rapid increase in TCP / IP and UDP / IP networks in which IPTV is being activated, the problem of deterioration of the quality of IP-based services is emerging.

Therefore, in order to stably provide IPTV interactive broadcasting programs, not only network status monitoring of a service provider such as a content server and a middleware server, but also continuous monitoring of network status of each set-top box device and prompt action in the event of a failure are essential.

To this end, in the related art, an IPTV bidirectional broadcasting service provider or a service operator operates a remote controller so that an IPTV bidirectional broadcasting program can be transmitted to the set-top box to monitor errors that can be issued when the program is operated and to identify when the error occurs. The service performance of the IPTV interactive broadcasting program can be manually assessed through the use of the service, or the network and the set-top box may be diagnosed in each set-top box by using log information on the status of each set-top box. Such log information may be used to determine interface status, line status, etc., depending on the type.

However, according to the conventional method in which the IPTV interactive broadcasting service provider or service operator evaluates the performance of a service qualitatively manually by operating a remote controller, it is difficult to quantitatively evaluate the service performance of the provided IPTV interactive broadcasting program. have. In addition, in recent years, a set-top box has been developed that can generate log information. However, even in the case of using the log information, a broadcast service provider or a service operator manually evaluates the performance of a service manually by using a remote control. According to this, it is also difficult to quantitatively determine the performance of the broadcast service, and there is also a problem in that it is not possible to separately determine whether a failure of a network or the like is used when using a set-top box that cannot provide log information.

The present invention has been made to solve the problems of the prior art as described above, it is possible to quantitatively evaluate the service performance of the IPTV bidirectional broadcast program without using log information on the IPTV bidirectional broadcast program service that can be generated in the set-top box It is an object of the present invention to provide a system and method.

IPTV broadcasting program performance evaluation system according to an embodiment of the present invention for achieving the above object, a control signal generator for transmitting a control signal for receiving an IPTV interactive broadcast program according to a predetermined scenario to the set-top box ; A video signal receiver connected to the set top box and receiving a video signal of an IPTV bidirectional broadcasting program corresponding to the control signal from the set top box; And a controller configured to determine whether a service failure of the IPTV bidirectional broadcast program is performed on the IPTV bidirectional broadcast program corresponding to the control signal, based on the image received from the set top box by the video signal receiver.

The control signal generated by the control signal generator may be the same infrared signal as the infrared signal generated from the remote control when the remote controller is operated to watch the IPTV bidirectional broadcasting program.

The apparatus may further include a storage unit configured to store an image screen of an image of the IPTV bidirectional broadcasting program when the script in which the scenario is stored and the IPTV bidirectional broadcasting program corresponding to the control signal are normally received.

Here, the control unit, the script parser for analyzing the scenario stored in the script; When the IPTV bidirectional broadcasting program corresponding to the control signal is normally received, the image screen of the image of the IPTV bidirectional broadcasting program and the image screen of the image received from the set-top box to the video signal receiver are compared with each other. Comparing inspection unit; And / or a performance measuring unit for measuring a time when the control signal is transmitted to the set-top box, and determining whether or not a service failure of the IPTV bidirectional broadcasting program as a result of the comparison test.

In addition, the IPTV broadcast program performance evaluation method according to an embodiment of the present invention for achieving the above object, by generating a control signal for receiving the IPTV two-way broadcast program according to a predetermined scenario to transmit to the set-top box step; Receiving an image signal for an IPTV bidirectional broadcasting program corresponding to the control signal from the set top box; And determining whether a service failure occurs in the IPTV bidirectional broadcast program based on the video signal received for the IPTV bidirectional broadcast program corresponding to the control signal.

The determining of whether the service failure occurs may include determining that a service failure occurs for the IPTV bidirectional broadcasting program when the video signal is not received within a predetermined time.

The determining of whether the service failure occurs may include comparing the image screen for the video signal with the image screen for the video of the IPTV bidirectional broadcasting program.

The comparing of the image screen may be performed by performing an XOR operation on the image screen of the video signal and corresponding pixels of some or all of the image screen of the image of the IPTV bidirectional broadcasting program stored in advance.

In addition, as a result of comparing the image screen, if it is determined that a service failure does not occur with respect to the IPTV bidirectional broadcasting program, a time for generating a control signal for receiving the IPTV bidirectional broadcasting program and the IPTV bidirectional broadcasting program The method may further include storing a time interval at which a broadcast signal is received as a performance measurement value of the IPTV bidirectional broadcast program.

The method may further include storing an image screen of the video signal as an error screen of the IPTV bidirectional broadcasting program when it is determined that a service failure occurs with respect to the IPTV bidirectional broadcasting program as a result of comparing the initial image screen. Can be.

According to the present invention, it is possible to quantitatively evaluate the service performance of an IPTV bidirectional broadcast program without using log information on an IPTV bidirectional broadcast program service that can be generated in a set-top box, and the conventional IPTV bidirectional broadcast program service performed by hand. Compared to the evaluation method, it is possible to evaluate the service for a long time and secure the stability of the IPTV interactive broadcasting service.

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

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and, unless expressly defined in this application, are construed in ideal or excessively formal meanings. Is not.

1 illustrates a hardware configuration of an IPTV broadcast program performance evaluation system according to an embodiment of the present invention.

IPTV program performance evaluation system 100 according to an embodiment of the present invention is configured to include a storage unit 101, the control unit 102, the image signal receiving unit 103, the control signal generator 104, The controller 102 includes a script parser 105, an image inspector 106, and a performance measurer 107.

In the storage unit 101, a scenario designated in advance to transmit a control command to the set-top box to receive a video signal for one or more specific broadcast programs for which performance is to be evaluated and to include a control command for a performance evaluation method, etc. The included script file is stored, and an image screen (e.g., an initial image screen) for an image displayed on the TV when normally received for the specific broadcast program is stored in advance. In addition, the storage unit 101 may also store an image screen for a specific broadcast program image actually received from the set-top box for performance evaluation by the IPTV broadcast program performance evaluation system of the present invention.

The video signal receiver 103 receives a signal for a specific broadcast program image corresponding to the infrared signal from the set-top box 108 that receives the infrared signal generated by the control signal generator 104 to be described later.

The control signal generator 104 generates an infrared signal identical to the infrared signal transmitted from the remote controller to the set-top box when the user operates the remote control to watch the program for the IPTV broadcasting program to be evaluated. To send).

The script parser 105 of the controller 102 analyzes a script file previously stored in the storage 101 and then transmits one or more specific IPTV bidirectional broadcast programs to evaluate service performance. A control command for instructing the set top box is generated and transmitted to the control signal generator 104. In addition, the script parser 105 of the controller 102 instructs a control command for instructing to compare the image screen actually received with the pre-stored image screen for the specific IPTV interactive broadcasting program to measure the specific performance as a result of analyzing the script file. Is generated and transmitted to the image inspection unit 106.

The image inspection unit 106 of the control unit 102 is an image screen for the image of a specific broadcast program previously stored in the storage unit 101 and the specific IPTV bidirectional received by the image signal receiving unit 103 from the set-top box By comparing some or all of the image screens of the images of the broadcast program, it is checked whether the normal image screen is transmitted from the set-top box 108 for the specific IPTV bidirectional broadcast program.

The performance measuring unit 107 of the control unit 102 generates a comparison result of the image inspection unit 106 and a performance measurement value (for example, an average response time of the time of receiving the image, variance, etc.) and the specific IPTV. As a result of measuring service performance for a bidirectional broadcast program, it is stored in the memory 101.

According to the IPTV broadcasting program performance evaluation system 100 according to the preferred embodiment of the present invention as described above, in order to know when a specific IPTV broadcasting program has a service interruption at, for example, one day, an IPTV broadcasting service provider However, the service operator had to continuously monitor by hand through the remote control all day long, but by simply writing and storing the script reflecting this work process in advance, the service could be monitored automatically to prevent service interruption of one or more specific IPTV programs. Quantitative analysis In addition, since the log information for a specific program provided by the set-top box is not used, even if a set-top box that does not provide log information is used, it is possible to know whether a service failure occurs for the specific program. In this case, the service failure includes a failure of the set-top box such as a network failure or a memory leaking problem.

2 is a block diagram of a software architecture used in an IPTV interactive broadcast program evaluation system according to an embodiment of the present invention.

MainControl module 201 is a module for inputting user input values (including script name, number of executions, execution duration, etc.) for test evaluation of IPTV broadcasting program performance and starting and ending the test, including OnBnClickedBtnstart (), StartAction () Methods like TestExecute () can be included.

The ScriptParsing module 202 reads the script file input by the user from the MainControl module 201 line by line to analyze the meaning of the described content, and according to the analyzed meaning, the RedRat module 203 and the Compare module 204 which will be described later. A module that calls the Logwrite module 206, which may include methods such as StringCheck (), TestStart (), and the like.

As a result of analyzing the script file, the RedRat module 203 receives the same infrared signal from the control signal generator 104 as the set-top box 108 from the control signal generator 104 by the user's remote control operation for the service of a specific IPTV bidirectional broadcasting program. It is a module to send to .It can include the following methods.

StartIR (): Initializes the control signal generator 104 to generate an infrared signal corresponding to a remote control signal for driving the set-top box.

AddSignalToDB (): Reads a file that defines the infrared signal from the remote control to control the set-top box 108.

OutPutSignalFastpath (): The control signal generator 104 transmits the same signal as the actual remote control signal to the set-top box 108.

The compare module 204 is a module for processing an image screen related to an image of an IPTV broadcast program, which is received by the image signal receiver 103 and displayed, and may include the following methods.

-SaveImage (): Saves the currently displayed image screen as an image for a specific IPTV bidirectional broadcasting program video.

-ImageCompare (): Compares the currently displayed image screen with the image screen for the specific IPTV bidirectional broadcasting program image stored in the storage unit 101 and checks whether the desired image screen is displayed.

ImageReCompare (): Checks whether the desired image screen disappears and another image screen appears.

CaptureCompare (): Checks whether the currently displayed image screen is the same as the immediately displayed image screen.

The logWrite module 205 is a module for storing the service performance value of a specific IPTV interactive broadcasting program measured by the performance measurement unit 107 as a test result, and may include the following methods.

starttimer (): Records the start time for specific IPTV bidirectional broadcast program performance measurement.

endtimer (): Records an end time for measuring specific IPTV bidirectional broadcast program performance.

LogWrite (): matches the results of each item in the script to each item in the script and writes it to a file.

According to the software architecture as described above, the service performance test of a specific IPTV broadcast program is started by the MainControl module 201 (step S21), and the script file is analyzed by the ScriptParsing module 202 (step S22), and the analysis result. As a control command for the RedRat signal input (step S23), image comparison by type (step S24), and test result recording (step S26), respectively, to the RedRat module 203, the Compare module 204, and the Logwrite module 206, respectively. Is generated. In addition, the compare module 204 allows the subsequent work according to the success or failure of the comparison as described in the type-specific image comparison result script to proceed (step S25).

In the IPTV bidirectional broadcasting program performance evaluation system according to the preferred embodiment of the present invention, performance evaluation is performed based on a script using the software architecture as described above. Referring to FIG. A specific method for evaluating the performance of a broadcast viewing program will be described.

Scripts for evaluating the performance of the IPTV broadcast program according to an embodiment of the present invention are described in pairs for each screen to be compared (that is, an image screen pre-stored for a specific IPTV interactive broadcast program and an image screen displayed according to the present invention). Preferably, the control command and remote control operation information means to transmit the remote control operation information for using a specific IPTV two-way broadcasting program service to the set-top box, and to describe the specific IPTV two-way broadcasting program as an image screen that can be identified When selecting an IPTV program, the image screen that stores all or part of the displayed screen, and the previously saved and displayed screen when the specific IPTV broadcasting program is normally serviced are described. Be sure to

For example, when the user operates the remote control, the user checks whether the initial menu service of the IPTV broadcasting service, which appears when the user presses the "home" button, is normally served within a predetermined time, and then the "down" button, the "down" button, In the case of pressing the "confirmation" button sequentially, a script for checking whether the broadcast A broadcast program is normally serviced within a predetermined time may be prepared as shown in FIG. 3.

As shown in Fig. 3, when the stored script is first described as "Send: Home" and "Compare: Home_Menu Screen.bmp", the IPTV broadcasting service is turned on by using the remote controller. The control signal generator 104 generates and transmits an infrared signal identical to the infrared signal generated from the remote control by the remote controller to display the initial menu screen, and transmits the same to the set-top box 108. Part or all of the menu screen and the “send: home” command are compared to part or all of the image screen of the currently displayed image via the set-top box 108.

Subsequently, when the down button, the down button, and the confirmation button of the remote control are sequentially pressed on the service initial menu screen of the IPTV two-way broadcasting program, the broadcast program being serviced is “A broadcast program”. In the case of evaluating the service performance, the script may be described as "Send: down, down, check" and "Compare: A broadcast program_main screen.bmp". When the user sequentially presses the down button, the down button, and the confirm button of the remote controller, the control signal generator 104 sequentially generates the same signals as the sequential infrared signals generated from the remote controller. To the box 108, and then some or all of the pre-stored “A broadcast program” main screen and received via the set-top box 108 by the “Send: down, down, OK” command to display the current display. Part or all of the main screen of the A broadcast program.

The script and / or image screen for comparison may be previously prepared by the IPTV interactive broadcast service provider or service operator or provided by default, but before the self performance evaluation to evaluate the performance of the IPTV interactive broadcast program, the present invention may be performed. According to the IPTV interactive broadcast program performance evaluation system and method can be separately created or stored.

4 is a diagram illustrating a process of processing a script by the IPTV interactive broadcasting program performance evaluation system according to an embodiment of the present invention. As shown in Fig. 4, if a script for checking whether one or a plurality of specific broadcast programs are normally serviced within a predetermined time is pre-written, the IPTV interactive broadcast program performance evaluation system according to an embodiment of the present invention The stored script is read and analyzed line by line and executed as follows.

First, a Send-related command for receiving a specific IPTV bidirectional broadcast program to be evaluated in step S401 is analyzed, and in step S402 an infrared ray identical to the signal generated by the remote controller by a remote controller operation for viewing the specific IPTV bidirectional broadcast program. The signal is transmitted to the set top box 108. Thereafter, the Compare-related command, which is the next command in the script, is read (step S403). The set-top box 108 receiving the infrared signal from the broadcast program performance evaluation system 100 of the present invention transmits the broadcast program as its own function to the TV and at the same time the video signal receiver of the broadcast program evaluation system 100. The broadcast program is transmitted (step S404).

If the image screen for the broadcast program image is not displayed within a predetermined time, it is determined that a failure has occurred in the broadcast program service or the set-top box, and error processing is performed (steps S405 and S406).

When the image screen for the broadcast program image is received and displayed within the predetermined time in step S405, whether the displayed image screen and the pre-stored image screen for the corresponding broadcast program image are the same image screen or part of the displayed image screen is displayed. A comparison command is performed to match with a corresponding partial image screen of the pre-stored image screen (step 407 and step S408).

If it is determined in step S408 that the result of the comparison between the two image screens is consistent, it is determined that the service of the corresponding broadcast program is normally performed, and the result processing of storing the required time as a performance measurement value is performed (step S410).

If it is determined in step S408 that the two image screens do not match, the comparison is continued until the image screen of the corresponding broadcast program is displayed until the predetermined time until the image screen of the corresponding broadcast program is displayed until then. A result process of storing the time taken as a performance measurement value is performed (steps S409, S405, S407, S408, and S410), and if the image screen of the corresponding broadcast program matched up to a predetermined time is not displayed, it is displayed until then. Error processing for storing an image as an error screen is performed (steps S409, S405, and S406).

In addition, this process is repeated (step S411), and this repeating process is repeated the number of times specified by the user for the same broadcast program as the previously evaluated broadcast program, or it is repeated to another broadcast program designated by the next command in the script file. Can be repeated. This iteration also runs until the end of the script.

In step S408 of FIG. 4, a method of determining whether all or the image screens match is possible by a simple XOR operation. That is, XOR operation is performed on the corresponding pixel of the image screen for the corresponding broadcast program image stored in the case of normal reception and the image screen for the image of the broadcast program received according to the present invention. If the sum is less than or equal to a predetermined criterion (eg, 10% of the number of corresponding pixels), it may be determined that the two image screens match. If the sum is greater than or equal to the predetermined criterion, the two image screens may be determined to be inconsistent. In addition, in order to further reduce the amount of computation, an XOR operation may be performed on a pixel of a corresponding partial region of the image screen instead of an XOR operation on a pixel of the entire image screen.

5 is a diagram illustrating a signal flow between components according to the IPTV broadcast program performance method of the present invention.

First, in step S501, the script parser 105 of the IPTV program performance evaluation system 100 of the present invention reads a script in which a scenario designated by a user is stored in advance from the storage unit 101, and analyzes a Send related command in the script. In step S502, a control command for instructing to generate the same signal as the infrared signal generated when the remote controller is operated to watch the specific IPTV bidirectional broadcasting program designated in the scenario is transmitted to the control signal generator 104.

In step S503, the control signal generator 104 measures the time at which the infrared signal corresponding to the control command is generated and, as a time stamp, a control name (for example, identification information for distinguishing a specific broadcast program associated with the Send command) and a time stamp. Simultaneously transmitting to the performance measurement unit 107, the same infrared signal generated from the remote control to the set-top box 108 when the remote control for viewing the specific IPTV bidirectional broadcast program specified by the scenario in step S504 send.

In step S505, according to the infrared signal transmitted from the control signal generator 104, the set-top box 108 receives the broadcast program with its own function and transmits the received image to the video signal receiver 103.

Subsequently, in step S506, the script parser 105 analyzes a Compare-related command in the script described after the Send-related command analyzed in step S501, and generates a control command for evaluating the performance of the service of the received specific broadcast program. Transfer to image inspection unit 106 (step S507). In step S509, according to the control command received from the script parser 105 in step S507, the image screen for the particular broadcast program from the video signal of the specific broadcast program transmitted from the video signal receiving unit 103 in step S508 and The image screen is displayed when the specific broadcast program is normally received and compares the image screen previously stored in the storage unit. The comparison of the two image screens at this time may be performed by the XOR operation of the corresponding pixels of the whole or part of the image screen as described above. In step S511, the comparison result in step S509 is transmitted to the performance measurement unit 107 together with identification information, a time stamp, and the like, for example, for identifying the specific broadcast program designated according to the scenario. In addition, in step S511, if the video signal is not received from the set-top box 108 within the predetermined time specified in the scenario, or if the video signal that does not match the image screen displayed when normally received is received within the predetermined time, The performance measurement unit 107 may be instructed to store an image screen according to the image signal received by a predetermined time as an error screen.

Finally, this process is repeated for the same broadcast program as many times as predetermined by the user by the script, or for another broadcast program specified by the next command (Send related command and Compare related command) in the script file. Can be performed (step S512).

The performance measuring unit 107 is the specific broadcast program from the set-top box 109 to the video signal receiving unit 103 from the time when the infrared signal is generated or transmitted to the set-top box 108 as a control signal from the control signal generator 104 The period (A) until the time when the video signal is transmitted can be stored in the storage unit as a response performance value, and the image inspection unit 106 starts from the time when the video signal of the specific broadcast program is transmitted from the video receiving unit 103. The period B until the comparison result reaches the performance measuring unit 107 may be stored as an analysis performance value in the storage unit. The response performance value may be utilized as a performance index of the specific broadcast program service using the average or the variance value.

The script according to the present invention can be written to use the usage form of the user. For example, if a particular IPTV two-way broadcast program is not serviced within a predetermined time, it may be necessary to re-request a service for the same broadcast program, select another broadcast program in the same submenu, or go back to the upper menu. When a broadcast service failure occurs for each user such as requesting viewing of a broadcast program, the response may be different. In addition, due to the characteristics of the IPTV interactive broadcast program, the contents serviced within the same broadcast program may vary according to the result of interaction with the user. According to the present invention, in the above cases, if a script reflecting various types of usage of the user is prepared in advance by using if, else, then, etc. commands, various uses of the user corresponding to service failure of a specific broadcast program are used. It is possible to measure the service performance of the broadcast program reflecting the shape. Therefore, it is almost impossible when the operator manually operates the remote control to determine the service failure of the IPTV bidirectional broadcast program, which is part or all of the service failure of the IPTV bidirectional broadcast program (network failure or set-top box). Quantitative analysis is possible.

Although described above with reference to the embodiments, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below. I can understand.

According to the present invention, it is possible to quantitatively evaluate the service performance of an IPTV bidirectional broadcast program without using log information on an IPTV bidirectional broadcast program service that can be generated in a set-top box, and the conventional IPTV bidirectional broadcast program service performed by hand. Compared to the evaluation method, it is possible to evaluate the service for a long time and secure the stability of the IPTV interactive broadcasting service.

In addition, the user satisfaction is improved by resolving the user's dissatisfaction of the IPTV two-way broadcast service caused by the lack of a service evaluation method can help to activate the IPTV two-way broadcast service.

The present invention is also effective in realizing customer satisfaction with high quality management because the service performance can be evaluated by reflecting the usage behavior of users who use the interactive content in IPTV.

1 illustrates a hardware configuration of an IPTV broadcast program performance evaluation system according to an embodiment of the present invention.

2 is a block diagram of a software architecture used in an IPTV interactive broadcast program evaluation system according to an embodiment of the present invention.

3 is a diagram showing an example of a script written to evaluate the performance of the IPTV interactive broadcast viewing program of the present invention.

4 is a diagram illustrating a method of processing a script by an IPTV interactive broadcasting program performance evaluation system according to an embodiment of the present invention.

5 is a diagram illustrating a signal flow between components according to the IPTV broadcast program performance method of the present invention.

Claims (14)

A control signal generator for transmitting a control signal for receiving an IPTV bidirectional broadcast program to a set-top box according to a predetermined scenario; A video signal receiver connected to the set top box and receiving a video signal of an IPTV bidirectional broadcasting program corresponding to the control signal from the set top box; And An IPTV bidirectional broadcasting program performance evaluation system including a control unit for determining whether a service failure of the IPTV bidirectional broadcasting program is performed on the IPTV bidirectional broadcasting program corresponding to the control signal based on an image received from the set top box by the video signal receiver; . The method of claim 1, And a control signal generated by the control signal generator is an infrared signal identical to an infrared signal generated from a remote controller when the remote controller is operated to watch the IPTV bidirectional broadcast program. The method of claim 1, And a storage unit for storing an image screen of the video of the IPTV bidirectional broadcasting program when the scenario stored script and the IPTV bidirectional broadcasting program corresponding to the control signal are normally received. Evaluation system. The method of claim 3, wherein The control unit, IPTV bidirectional broadcast program performance evaluation system, characterized in that the scenario stored in the script comprises a script parser to analyze. The method of claim 3, wherein The controller may include an image screen of an image of the IPTV bidirectional broadcasting program corresponding to the control signal when the IPTV bidirectional broadcasting program is normally received, and an image screen of the image received from the set top box to the video signal receiver. IPTV bidirectional broadcast program performance evaluation system comprising a comparison check unit for comparing the match. The method of claim 5, The control unit may further include a performance measuring unit configured to measure a time when the control signal is transmitted to the set-top box, and determine whether the service failure of the IPTV bidirectional broadcasting program is a result of the comparison by the comparison inspection unit. Performance evaluation system. Generating a control signal for receiving an IPTV bidirectional broadcasting program according to a predetermined scenario and transmitting the control signal to the set-top box; Receiving an image signal for an IPTV bidirectional broadcasting program corresponding to the control signal from the set top box; And And determining whether a service failure occurs in the IPTV bidirectional broadcast program based on the video signal received for the IPTV bidirectional broadcast program corresponding to the control signal. The method of claim 7, wherein The control signal is an IPTV bidirectional broadcast program performance evaluation method, characterized in that the same infrared signal generated from the remote control when operating the remote control for viewing the IPTV bidirectional broadcast program. The method of claim 7, wherein Determining whether the service failure occurs, if the video signal is not received within a predetermined time includes the step of determining that the service failure for the IPTV bidirectional broadcast program, characterized in that the performance evaluation Way. The method of claim 7, wherein The determining of the occurrence of the service failure may include comparing the image screen of the video signal with the image screen of the video of the IPTV bidirectional broadcasting program stored in advance. Way. 11. The method of claim 10, Comparing the image screen, And performing an XOR operation on a portion of the image screen of the video signal and corresponding pixels of a part or all of the image screen of the image of the IPTV bidirectional broadcasting program stored in advance. The method of claim 11, And determining that a service failure has occurred for the IPTV bidirectional broadcast program when the sum of the XOR operations on the corresponding pixels exceeds a predetermined value. 11. The method of claim 10, As a result of comparing the image screen, when it is determined that a service failure does not occur with respect to the IPTV bidirectional broadcasting program, a time when a control signal for receiving the IPTV bidirectional broadcasting program is generated and a broadcast signal for the IPTV bidirectional broadcasting program Storing the time interval of the received time as a performance measurement value of the IPTV bidirectional broadcast program. 11. The method of claim 10, And comparing the initial image screen and storing the image screen for the video signal as an error screen of the IPTV bidirectional broadcasting program when it is determined that a service failure occurs with respect to the IPTV bidirectional broadcasting program. IPTV interactive broadcast program performance evaluation method.

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