KR102072023B1 - Apparatus and Method for Monitoring Quality of Media, and Computer Readable Recording Medium Therefor - Google Patents

Abstract

Disclosed are a device for monitoring quality of media and a method thereof and a computer-readable recording medium therefor. According to one aspect of the present invention, provided are the device for remotely monitoring the quality of the media provided in real-time and the method thereof and the computer-readable recording medium therefor, capable of reproducing a quality state of a video, an audio, and the like of broadcast content in a real-time channel service environment in which a user is currently watching even if a quality measurer does not actually visit the place in which the user is watching the real-time broadcasting content. The present invention comprises a monitoring request receiving part, a data loss information request part, a data loss information receiving part, a stream data receiving part, an emulation part, and an emulation data transmitting part.

Description

Apparatus and Method for Monitoring Quality of Media, and Computer Readable Recording Medium Therefor}

The present embodiment relates to an apparatus and method for monitoring the quality of media and a computer readable recording medium therefor.

The contents described in this section merely provide background information on the present invention and do not constitute a prior art.

Recently, as the broadcasting system is switched from analog broadcasting to digital broadcasting, the broadcasting system is shifting toward multi-channel broadcasting, high quality of program image and sound. In particular, IPTV (Internet Protocol Television) provides various multimedia contents such as movies and broadcasting programs to users by using high-speed internet network, and supports various interactive models where users can participate in the program. Doing. In addition, due to the spread of smart phones, mobile IPTV services that allow users to freely watch contents provided by the existing wired IPTV anytime, anywhere without restrictions such as the location, type of terminal, and content access are also attracting attention.

One of the main complaints of the user when using the real-time channel service for the broadcast content provided by the wired / wireless IPTV service is the interruption or stoppage of the broadcast content. In this case, the user mainly requests a consultation report through the customer center. Since the broadcast content is cut off or stopped at a place where the user is currently using the real-time channel service (for example, the user's home), a quality measurer (for example, a counselor) Or a troubleshooter) is not at the same place as the user, there is a problem that the quality of the broadcast content reception at the time of reporting can not be accurately known. Therefore, the counseling staff or disability repair technicians are forced to respond depending on the contents of the user's report, and the user's dissatisfaction is high because it is impossible to grasp the quality situation and technical problems of the broadcast contents by the user's report alone. to be.

In addition, since the quality of real-time broadcast content changes in real time according to the network situation and the state of the user terminal, even if trouble repair lyrics come to the place where the user is using the real-time channel service, for example, the broadcast content is Since the quality situation has already changed, it is difficult to determine the cause of the problem.

In this embodiment, even if the quality measurer does not actually visit the place where the user is watching the real-time broadcast content, the quality state of the video and audio of the broadcast content in the real-time channel service environment currently viewed by the user can be reproduced. The main objective is to provide a device and method for remotely monitoring the quality of media provided in real time and a computer readable recording medium therefor.

According to an aspect of the present embodiment, an apparatus for monitoring the quality of media, the apparatus comprising: a monitoring request receiving unit for receiving a monitoring request signal including identification information of a subscriber station from a quality measuring terminal; A data loss information request unit for requesting data loss information of stream data to the subscriber station identified using the identification information; A data loss information receiving unit which receives the data loss information from the subscriber station; An emulation unit configured to generate emulation stream data from which a loss packet is excluded using the received data loss information; And an emulation data transmitter for transmitting the emulation stream data to the quality measurement terminal.

According to another aspect of the present embodiment, a method for monitoring the quality of media, the method comprising: receiving a monitoring request signal including identification information of a subscriber station from a quality measuring terminal; Requesting data loss information of stream data to the subscriber station identified using the identification information; Receiving the data loss information from the subscriber station; Generating emulation stream data identical to the stream data using the received data loss information; And transmitting the emulation stream data to the quality measurement terminal.

According to another aspect of the present embodiment, the data processing device, the step of receiving a monitoring request signal containing the identification information of the subscriber station from the quality measurement terminal; Requesting data loss information of stream data from the subscriber station identified using the identification information; Receiving the data loss information from the subscriber station; Generating emulation stream data identical to the stream data using the received data loss information; And a computer-readable recording medium having recorded thereon a program for realizing the process of transmitting the emulation stream data to the quality measurement terminal.

As described above, according to the present embodiment, the image displayed on the screen of the user terminal can be reproduced in the same way by transmitting the emulation stream data emulated in the form excluding lost packet to the quality measurer's terminal. It is effective. Accordingly, the quality of the media provided in real time can be monitored remotely in real time, thereby increasing the satisfaction of the real-time broadcasting content user. In addition, since the quality measurer can remotely monitor the quality of the media where the user is watching the real-time broadcast content without actually visiting, the quality measurer's workload can be reduced.

1A is a block diagram schematically showing the structure of a media quality monitoring system according to the present embodiment.
1B is a block diagram schematically showing the structure of a monitoring server according to the present embodiment.
2 is a diagram illustrating an index table configuration used when an emulation unit generates emulation stream data.
3 is a flow chart for explaining the overall media quality monitoring method according to the present embodiment.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used to refer to the same components as much as possible, even if displayed on different drawings. In addition, in describing the present invention, if it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the component of this invention, terms, such as 1st, 2nd, A, B, (a), (b), can be used. These terms are only for distinguishing the components from other components, and the nature, order or order of the components are not limited by the terms. Throughout the specification, when a part is said to include, 'include' a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated. . In addition, as described in the specification. The terms 'unit' and 'module' refer to a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

1A is a block diagram schematically showing the structure of a media quality monitoring system 100 according to the present embodiment.

As shown in FIG. 1A, the media quality monitoring system 100 according to the present embodiment may include a stream server 110, a subscriber station 120, a quality measurement terminal 130, and a monitoring server 140. have.

The stream server 110 according to the present embodiment transmits media stream data such as video and audio data corresponding to real-time broadcast content to the subscriber station 120. The subscriber station 120 may request a consultation report through a customer center when there is a complaint while watching a real time broadcast, for example, when a broadcast is interrupted or stopped. In this case, the quality measurement terminal 130 that receives the consultation report transmits the identification information of the reported subscriber terminal 120 to the monitoring server 140 and requests real-time media quality emulation of the subscriber terminal 120. . In this case, the identification information of the subscriber station 120 may be an ID, an IP address, and a MAC address of the subscriber station 120, and the quality measurement terminal 130 may be a terminal used by an agent or a disability technician. It may be a set top box (STB), a PC, or a mobile terminal such as a smartphone.

The monitoring server 140 according to the present exemplary embodiment uses the identification information of the subscriber station 120 received from the quality measuring terminal 130, and transmits data loss information for media quality monitoring to the subscriber station 120. request. Upon receiving the data loss information, the subscriber station 120 monitors the data loss information including the ID of the broadcast content stream data currently being viewed, the immediately preceding serial number of the lost packet lost from the content stream data, and the immediately following serial number. To send).

The monitoring server 140 always receives and stores all stream data provided to the service from the stream server 110 regardless of whether or not monitoring is performed. Therefore, the monitoring server 140 identifies the stream data by using the ID of the broadcast content stream data included in the data loss information, and identifies the lost packet by using the serial number immediately before the lost packet and immediately after the serial number. Then, emulated stream data emulated in the form except for the lost loss packet is generated. In other words, the quality of the stream data received by the subscriber station 120 is reproduced as it is by emulating the stream data having the same form as the stream data received by the subscriber station 120.

The monitoring server 140 transmits the generated emulation stream data to the quality measurement terminal 130. Upon receiving the emulation stream data, the quality measurement terminal 130 checks the reception quality state of the media received by the subscriber station 120 by playing / analyzing the data. That is, the monitoring server 140 transmits the emulation stream data emulated in the form excluding the lost packet to the quality measuring terminal 130 so that the image displayed on the screen of the subscriber terminal 120 is also transmitted to the quality measuring terminal 130. It is possible to reproduce the same. As a result, the subscriber station 120 can reproduce the stream data having the same form as the stream data received by the quality measurement terminal 130, so that the quality situation of the problem stream data can be grasped as it is.

1B is a block diagram schematically showing the structure of the monitoring server 140 according to the present embodiment.

As shown in FIG. 1B, the monitoring server 140 according to the present embodiment includes a monitoring request receiver 141, a data loss information requester 142, a data loss information receiver 143, an emulation unit 144, and an emulation. The data transmitter 145 and the stream data receiver 146 may be included.

The monitoring request receiving unit 141 according to the present embodiment receives the monitoring request signal including the identification information of the subscriber station 120 from the quality measurement terminal 130.

The data loss information requesting unit 142 according to the present embodiment requests the data loss information of the stream data to the identified subscriber station 120 using the identification information included in the monitoring request signal received from the monitoring request receiving unit 141. do.

The data loss information receiving unit 143 according to the present embodiment receives the data loss information from the subscriber station 120 for which the data loss information of the stream data is requested, and continues until the monitoring stop request is received from the quality measurement terminal 130. Thus, data loss information is received from the subscriber station 120. After receiving the data loss information and receiving the monitoring stop request from the quality measuring terminal 130, the data loss information requesting unit 142 requests the subscriber terminal 120 to stop transmitting the data loss information of the stream data.

The emulator 144 according to the present exemplary embodiment generates emulation stream data in which the loss packet is excluded using the data loss information received from the data loss information receiver 143.

2 is a diagram illustrating an index table configuration used when the emulation unit 144 generates emulation stream data.

As illustrated in FIG. 2, the monitoring server 140 previously configures and stores an index table 200 that manages packet positions as indexes for each stream data in order to quickly access packet positions of stream data. That is, the stream data receiving unit 146 of the monitoring server 140 always receives all stream data provided to the service from the stream server 110 regardless of whether the monitoring operation is performed. The index table 200 for each stream data is configured.

Accordingly, the ID of the broadcast content stream data currently being viewed by the subscriber station 120 requesting the data loss information, the immediately preceding serial number (Pre-SN: 49008) of the lost packet from the content stream data, and the immediately following serial number (Post) -SN: 49011), etc., when the data loss information is transmitted to the monitoring server 140, the emulation unit 144 of the monitoring server 140 refers to a pre-configured index table 200 to lose from the corresponding stream data. The storage location of the packet (RTP SN: 49009 and RTP SN: 49010) can be confirmed. Since the storage location of the loss packet is confirmed, the emulation stream data excluding the loss packet among the packets stored in the memory 210 is transmitted from the emulation data transmission unit 145 to the quality measurement terminal 130. By emulating stream data of the same type as stream data including only seven packets (SN: 49004 to 49008, and 49011 and 49012) normally received by the UE, the subscriber station 120 reproduces the quality of the stream data provided as it is. It is. That is, the emulation data transmitter 145 transmits the emulation stream data emulated in the form excluding lost packet to the quality measurement terminal 130 to transmit the image displayed on the screen of the subscriber station 120 to the quality measurement terminal 130. In the same way can be reproduced.

3 is a flow chart for explaining the overall media quality monitoring method according to the present embodiment.

The monitoring server 140 detects whether a monitoring request signal is received, and when the monitoring request signal including the identification information of the subscriber station 120 is transmitted from the quality measurement terminal 130, the monitoring server 140 receives the monitoring request signal. (S310).

When the monitoring request receiving unit 141 receives the monitoring request signal, the data loss information requesting unit 142 requests the data loss information of the stream data to the identified subscriber station 120 using the received identification information (S320).

The data loss information receiving unit 143 receives data loss information from the subscriber station 120. In this case, the data loss information includes an ID of broadcast content stream data currently viewed, a serial number immediately before a loss packet lost from the content stream data, And immediately after the serial number, etc. (S330). According to another exemplary embodiment, the data loss information may include jitter information or other various information representing data reception quality. In general, jitter information refers to "unstable signal differences" that occur between a desired signal and a signal that actually occurs for a particular signal. For example, in IP communications, a delay of a packet's arrival time is 1 millisecond (Milli Sec). When the delay value varies, this is called Packet Delay Variation, which can also be referred to as jitter. That is, if data is not lost at the subscriber station 120 but a delay occurs, the reception quality is deteriorated. In this case, jitter information or other various reception quality related information may be included in the data loss information.

The emulation unit 144 generates the same emulation stream data as the stream data reproduced in the subscriber terminal 120 by using the data loss information received from the subscriber terminal 120 (S340). That is, when the data loss information includes the ID of the broadcast content stream data currently being viewed, the immediately preceding serial number of the lost packet lost from the content stream data, and the immediately following serial number, the emulation stream data is in the form of excluding lost packet lost. Is emulated. On the other hand, when the data loss information includes jitter information or other information indicating the data reception quality, the emulation unit 144 may emulate a packet in accordance with the jitter information to delay the packet. Emulation stream data is generated in the form of emulation by reflecting other information indicated. That is, the quality measurement terminal 130 reflects all the information included in the data loss information and emulates the stream data having the same form as that viewed from the subscriber terminal 120 to display the image displayed on the screen of the subscriber terminal 120. The same will be reproduced in.

The emulation data transmitter 145 transmits the emulation stream data emulated by the emulator 144 to the quality measurement terminal 130 (S350).

The monitoring server 140 continuously detects whether a monitoring stop request is received (S360), and when the monitoring stop request is received from the quality measuring terminal 130, requests that the data loss information transmission is stopped (S370). ).

In FIG. 3, processes S300 to S370 are described as being sequentially executed, but this is merely illustrative of the technical idea of the exemplary embodiment of the present invention. In other words, a person of ordinary skill in the art to which an embodiment of the present invention belongs may execute the process described in FIG. 3 by changing the order described in FIG. 3 without departing from the essential characteristics of the embodiment of the present invention. Since the above processes may be variously modified and modified to be executed in parallel, FIG. 3 is not limited to the time series order.

Meanwhile, the processes illustrated in FIG. 3 may be embodied as computer readable codes on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. That is, the computer-readable recording medium may be a magnetic storage medium (for example, a ROM, a floppy disk, a hard disk, etc.), an optical reading medium (for example, a CD-ROM, a DVD, etc.) and a carrier wave (for example, the Internet Storage medium). The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

The above description is merely illustrative of the technical idea of the present embodiment, and those skilled in the art to which the present embodiment belongs may make various modifications and changes without departing from the essential characteristics of the present embodiment. Therefore, the present embodiments are not intended to limit the technical idea of the present embodiment but to explain, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present embodiment.

100: media quality monitoring system
110: stream server 120: subscriber terminal
130: quality measurement terminal 140: monitoring server
141: monitoring request receiving unit 142: data loss information requesting unit
143: data loss information receiving unit 144: emulation unit
145: emulation data transmitter 146: stream data receiver
200: index table

Claims (9)

In the device for monitoring the quality of real-time media,
A monitoring request receiving unit which receives a monitoring request signal including identification information of the subscriber station from the quality measuring terminal;
A data loss information request unit requesting real time data loss information of stream data to the subscriber station identified using the identification information;
A data loss information receiving unit which receives the real time data loss information from the subscriber station;
A stream data receiver for continuously receiving stream data from a stream server regardless of whether the monitoring request signal is received;
An emulation unit configured to generate real-time emulation stream data excluding a loss packet by using the real-time data loss information received from the subscriber station and the stream data received from the stream data receiver; And
An emulation data transmitter for transmitting the real-time emulation stream data to the quality measurement terminal.
Apparatus for monitoring the quality of the media comprising a. delete The method of claim 1,
And the identification information includes at least one of an ID, an IP address, and a MAC address of the subscriber station. The method of claim 1,
And the data loss information receiving unit continuously receives the data loss information from the subscriber station until it receives a monitoring stop request from the quality measuring terminal. The method of claim 1,
And the data loss information includes an ID of the stream data, a serial number immediately before the loss packet, and a serial number immediately after the loss packet. The method of claim 1,
The emulation unit, the apparatus for monitoring the quality of the media, characterized in that for generating the emulation stream data using an index table for managing the packet position for each stream data as an index. The method of claim 1,
The data loss information requesting unit, upon receiving a monitoring stop request from the quality measuring terminal, requests the subscriber terminal to stop transmitting data loss information of stream data. In a method for monitoring the quality of real-time media,
Receiving a monitoring request signal including identification information of the subscriber station from the quality measuring terminal;
Requesting real-time data loss information of stream data to the subscriber station identified using the identification information;
Receiving the real time data loss information from the subscriber station;
Continuously receiving stream data from a stream server whether or not the monitoring request signal is received;
Generating real time emulation stream data excluding a loss packet by using the real time data loss information received from the subscriber station and the stream data received from the stream server; And
Transmitting the real-time emulation stream data to the quality measurement terminal.
Method for monitoring the quality of the media comprising a. Data processing devices,
Receiving a monitoring request signal including identification information of the subscriber station from the quality measurement terminal;
Requesting real-time data loss information of stream data to the subscriber station identified using the identification information;
Receiving the real time data loss information from the subscriber station;
Continuously receiving stream data from the stream server regardless of whether the monitoring request signal is received;
Generating real time emulation stream data excluding a loss packet by using the real time data loss information received from the subscriber station and the stream data received from the stream server; And
Transmitting the real-time emulation stream data to the quality measurement terminal
A computer-readable recording medium having recorded thereon a program for realizing this.

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