KR101418083B1 - Manless diagnostic system for triple play service terminal - Google Patents

Abstract

The present invention relates to a TPS terminal unattended diagnostic system for automatically discriminating whether or not a TPS terminal providing an Internet service, an Internet telephone service, and an IPTV (Internet Protocol Television) service, respectively. The TPS terminal unattended diagnostic system for automatically diagnosing the failure of the TPS terminal according to the present invention includes a storage unit for storing a quality measurement report and a channel change script; A modem diagnostic unit for analyzing a packet received or transmitted from the Internet modem to determine whether the Internet modem has failed, generating a quality measurement report of the Internet modem in which the determination result is recorded, and storing the generated report in the storage unit; And a quality measurement report of the VoIP terminal in which the result of the determination is recorded is generated and stored in the storage unit of the VoIP terminal, A VoIP terminal diagnosing unit storing the VoIP terminal; And a channel change script extracting and analyzing channel change script in the storage unit, recognizing a channel change schedule in which fixed time of each broadcast channel is set, changing a broadcast channel of the digital TV set-top box according to the channel change schedule, The digital TV set-top box receives the audio data and the video data of the broadcast channel, analyzes the received data, measures quality of each channel of the digital TV set-top box, And a set-top box diagnosis unit for generating a quality measurement report of the digital TV set-top box on which a failure determination result is recorded and storing the generated quality measurement report in the storage unit.

Description

Description of the Related Art [0002] Manless diagnostic system for triple play service terminal

TECHNICAL FIELD [0001] The present invention relates to a technology for diagnosing a failure of a TPS (Triple Play Service) terminal, and more particularly to a technology for automatically detecting a failure of a TPS terminal providing an Internet service, an Internet telephone service, and an Internet Protocol Television To an unmanned diagnostic system for a TPS terminal.

TPS (Triple Play Service) is a telecommunication broadcasting convergence service that enables broadband, telephone, and broadcasting to be used at once. In other words, subscribers can apply for services that are integrated with broadband Internet, Internet telephony, and IPTV from a communication service provider.

In order to provide such a TPS, subscribers install three types of TPS terminals: an IPTV set-top box, a VoIP terminal, and an Internet modem.

However, when a failure occurs in one of the plurality of TPS terminals, the subscribers can not use at least one of the IPTV service, the Internet telephone service, and the Internet connection service.

When the TPS terminal is bad in this way, the telecommunication carriers collect the TPS terminal and conduct a certain test before judging the TPS terminal. However, in the past, in order to test the TPS terminal, maintenance personnel manually test the performance of all the TPS terminals and judge good products of the respective TPS terminals. However, there is a problem in that a manual labor test technique takes a lot of time and labor.

It is an object of the present invention to provide a TPS terminal unattended diagnostic system which automatically diagnoses whether each TPS terminal is defective through one equipment.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

In order to accomplish the above object, according to the present invention, there is provided a TPS terminal unattended diagnostic system for automatically diagnosing a failure of a TPS terminal, comprising: a storage unit for storing a quality measurement report and a channel change script; A modem diagnostic unit for analyzing a packet received or transmitted from the Internet modem to determine whether the Internet modem has failed, generating a quality measurement report of the Internet modem in which the determination result is recorded, and storing the generated report in the storage unit; And a quality measurement report of the VoIP terminal in which the result of the determination is recorded is generated and stored in the storage unit of the VoIP terminal, A VoIP terminal diagnosing unit storing the VoIP terminal; And a channel change script extracting and analyzing channel change script in the storage unit, recognizing a channel change schedule in which fixed time of each broadcast channel is set, changing a broadcast channel of the digital TV set-top box according to the channel change schedule, The digital TV set-top box receives the audio data and the video data of the broadcast channel, analyzes the received data, measures quality of each channel of the digital TV set-top box, And a set-top box diagnosis unit for generating a quality measurement report of the digital TV set-top box on which a failure determination result is recorded, and storing the generated quality measurement report in the storage unit.

Preferably, the set-top box diagnosis unit extracts a previous quality measurement report on the digital TV set-top box from the storage unit and analyzes the quality measurement report to determine whether a broadcast channel having a poor broadcast status exists in the digital TV set- And adjusts the channel change schedule so that the fixed time of the broadcast channel having a poor broadcast condition is longer.

Also, the set-top box diagnosis unit may provide an interface for setting a channel change schedule to the administrator, and may update the channel change script of the storage unit based on the information input through the interface.

More preferably, the modem diagnosis unit generates download traffic or upload traffic to the Internet modem, analyzes the packet according to the traffic occurrence, and measures a download quality or an upload quality of the Internet modem.

In addition, the modem diagnosis unit may determine the strength of the forward radio signal transmitted through the Internet modem and the strength of the reverse radio signal received through the Internet modem to determine whether the Internet modem has failed.

Meanwhile, the VoIP terminal diagnosis unit may transmit an RTP loopback packet to the VoIP terminal, analyze the RTP loopback packet received from the VoIP terminal, and analyze the call quality of the VoIP terminal.

The present invention automatically checks the quality of several digital TV set-top boxes, VoIP terminals and internet modems at the same time and provides the results to the managers, thereby saving the work force and time required to determine whether the TPS terminals are defective have.

In particular, the present invention can automatically determine whether a digital TV set-top box has failed by automatically changing the broadcast channel of the digital TV set-top box based on the channel change script and measuring the quality of each broadcast channel, There is an advantage of accurately identifying the cause of the set-top box failure.

In addition, the present invention is advantageous in that it can more intensively perform a quality check on a broadcast channel in which a fault frequently occurs by adjusting a channel change schedule based on past quality measurement histories.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention. And shall not be construed as limited to such matters.
1 is a diagram illustrating a configuration of a TPS terminal unattended diagnostic system according to an embodiment of the present invention.
2 is a diagram showing a configuration of a diagnostic apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a method of diagnosing a TV set-top box failure in a TPS terminal unattended diagnostic system according to an exemplary embodiment of the present invention.
4 is a flowchart illustrating a method of adjusting a channel change schedule in a TPS terminal unattended diagnostic system according to an embodiment of the present invention.
5 is a flowchart illustrating a method for diagnosing a failure of an Internet modem in a TPS terminal unattended diagnostic system according to an embodiment of the present invention.
6 is a flowchart illustrating a method for diagnosing a failure of a VoIP terminal in a TPS terminal unattended diagnostic system according to an embodiment of the present invention.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a configuration of a TPS terminal unattended diagnostic system according to an embodiment of the present invention.

The TPS terminal is a terminal for providing a subscriber with three services (Internet connection, Internet telephony, and IP broadcasting) of a subscriber, and includes a TV set-top box 110, an Internet modem 120, a Voice- And a terminal 130.

1, the TPS terminal unattended diagnostic system according to the preferred embodiment of the present invention includes at least one TV set-top box 110, an Internet modem 120, a VoIP terminal 130, a barcode reader 300, A connector 400, a traffic server 500, and a diagnostic device 200.

The line connector 400 has a plurality of ports and interconnects the Internet modem 120, the VoIP terminal 130, the diagnostic device 200, and the traffic server 500 through the ports. The line connector 400 is connected to the Internet modem 120, the VoIP terminal 130, the diagnostic device 200, and the traffic server 500 via a communication cable such as a LAN cable or a USB cable. The line connector 400 is additionally connected to the diagnostic device 200 via a serial cable and changes the line connection structure based on the signal received from the diagnostic device 200 via the serial cable.

The traffic server 500 performs a function of sending a packet to the Internet modem 120 or receiving a packet from the Internet modem 120 under the control of the diagnostic device 200. [ In particular, when the traffic server 500 receives a packet from the Internet modem 120, the traffic server 500 analyzes the packet and measures the quality of the upload service of the Internet modem 120.

Each of the TV set-top boxes 110 is a TPS terminal for providing an IP-based digital TV broadcasting service. The TV set-top box 110 is connected to the diagnostic apparatus 200 through an audio and video cable, and is connected to a broadcasting service server Cable. In addition, the TV set-top box 110 transmits the video data and the audio data received from the broadcast service server to the diagnostic apparatus 200.

The Internet modem 120 is an apparatus for providing an Internet connection service to a user, and may include a wired modem and a wireless modem. That is, the Internet modem 120 can integrate a wired modem and a wireless modem to provide a wired / wireless Internet service to a user, and can provide a wired-based Internet service to a user by mounting only a wired modem. In the embodiment of the present invention, the Internet modem 120 is assumed to be integrated with a wired modem and a wireless modem.

The VoIP terminal 130 is a terminal that provides a voice call service or a video call service (i.e., an Internet phone service) on the basis of a Session Initiation Protocol (SIP). That is, the VoIP terminal 130 transmits the call related packet to the counterpart terminal using the Internet network, and receives and outputs the call related packet from the counterpart terminal.

Each of the TV set-top box 110, the Internet modem 120, and the VoIP terminal 130 has a unique bar code attached thereto.

The barcode reader 300 recognizes identification information of the TPSs 110, 120 and 130 through the barcodes attached to the respective TPS terminals, that is, the TV set top box 110, the Internet modem 120 and the VoIP terminal 130 And transmits the recognized identification information to the diagnostic apparatus 200. [

The diagnostic apparatus 200 acquires data from each of the TV set-top box 110, the Internet modem 120 and the VoIP terminal 130 and analyzes the obtained data to generate the TV set-top box 110, the Internet modem 120 ), It is determined whether or not each of the VoIP terminals 130 is defective.

2 is a diagram showing a configuration of a diagnostic apparatus according to an embodiment of the present invention.

2, the diagnostic apparatus 200 according to the preferred embodiment of the present invention includes a terminal identification unit 210, a communication unit 220, a line setting unit 230, a display unit 240, a storage unit 250 A set-top box diagnosis unit 260, a modem diagnosis unit 270, and a VoIP terminal diagnosis unit 280.

The terminal identification unit 210 identifies the TPS terminal identification information received from the barcode reader 300 and transmits the identification information to the set top box diagnosis unit 260, the modem diagnosis unit 270 or the VoIP terminal diagnosis unit 280 We deliver it to either one. At this time, the terminal identification unit 210 identifies the type of the TPS terminal recorded in the terminal identification information, and according to this type, the barcode information is transmitted to the set-top box diagnosis unit 260, the modem diagnosis unit 270, (280). That is, if the type information of the TPS terminal recorded in the identification information is information indicating the TV set-top box 110, the terminal identification unit 210 transmits the barcode information to the set-top box diagnosis unit 260. If the type information of the TPS terminal recorded in the identification information is information indicating a VoIP terminal, the terminal identification unit 210 transmits the identification information to the VoIP terminal diagnosis unit 280.

The communication unit 220 is wired to the line connector 400 through a plurality of cables and communicates with the Internet modem 120 and the VoIP terminal 130 via the line connector 400. In addition, the communication unit 220 includes a plurality of network cards, and each network can be connected to the line connector 400 through a cable extending from the card.

The line setting unit 230 is connected to the line connector 400 through a serial cable and controls the line connector structure of the line connector 400 by transmitting a control signal to the line connector 400 through the serial cable do. For example, the line setting unit 230 may transmit a control signal indicating the connection of the port 1 and the port 13 to the line connector 400 and connect the port 1 and the port 13 of the line connector 400 one-to-one . As another example, the line setting unit 230 may transmit a control signal indicating the connection of the ports 2 to 4 and the port 14 to the line connector 400 to connect the port of the line connector 400 to the terminal 1: . That is, the line setting unit 230 controls the line connection structure of the line connector 400 according to the input signal of the manager so that at least one of the Internet modem 120 and the VoIP terminal 130 can communicate with the diagnostic apparatus 200 You can set up a wire connection structure to communicate with a multicast or cast.

The display unit 240 includes display means such as a liquid crystal display means and outputs video data received from the TV set top box 110 and outputs a quality measurement processing screen of each of the TPS terminals 110, . Preferably, the display unit 220 is divided into a predetermined area corresponding to the number of the TPS terminals 110, 120, and 130, and the quality measurement processing screen of the TPS terminals 110, 120, and 130 is displayed on the divided screen Can be specified and output.

The storage unit 250 stores a channel change script in which a channel change order and a fixed time of each broadcast channel are recorded, and stores a quality measurement report for each TPS terminal (i.e., TV set top box, Internet modem, VoIP terminal) do.

The set-top box diagnosis unit 260 analyzes the quality of data received from each of the TV set-top boxes 110 and analyzes the failure of each of the TV set-top boxes 110.

The set-top box diagnosis unit 260 includes a video acquisition module 261, a script setting module 262, a channel change module 263, and a channel quality measurement module 264.

The video acquisition module 261 performs a function of receiving data from each of the TV set-top boxes 110. Particularly, the video acquisition module 261 is connected to each of the TV set-top boxes 110 via a cable (i.e., an audio cable and a video cable) independent of the TV set-top box 110 and receives audio data and video data from the TV set- Preferably, the video acquisition module 261 has a plurality of ports into which AV (Audio-Video) cables are inserted, and can be connected to a plurality of TV set-top boxes 110 through the plurality of ports.

The script setting module 262 provides an interface to the administrator for setting the channel change schedule, and updates the channel change script based on the information input through the interface. That is, the script setting module 262 provides an interface for adjusting the channel change schedule to the manager. When the channel change schedule adjustment information is input from the manager through the interface, the script setting module 262 stores the schedule change information in the storage unit 250, The channel change script of the channel change script is updated.

The channel change module 263 includes a plurality of infrared signal generators. The channel change module 263 interprets the channel change script of the storage unit 250 and confirms the channel change schedule. Then, according to the channel change schedule, And changes the broadcast channel of the box 110. Specifically, the channel change module 263 checks the channel change order based on the channel change schedule, and changes the channel of each TV set-top box 110 according to the channel change order by using an infrared signal generator, And transmits the changed radio signal to the TV set-top box 110. At this time, the channel change module 263 counts the fixed time of each broadcasting channel, and counts the fixed time. When the count is completed, the channel changing module 263 transmits the infrared signal, which is changed to the next broadcasting channel by using the infrared signal generator, Box 110 to change the broadcast channel of the TV set-top box 110. [

Preferably, each infrared signal generator is disposed in a cabinet that is a separate space, and each TV set-top box 110 is also placed in an independent cabinet, in order to avoid signal interference between the two. That is, the first TV set-top box and the first infrared ray signal generator may be disposed in a cabinet in the same space, and the second set-top box and the second infrared ray signal generator may be disposed in different cabinets. More preferably, the channel change module 263 receives the cabinet information in which the TV set-top box 110 is located from the manager, and uses the infrared signal generator disposed in the cabinet to change the channel- Signal.

The channel quality measurement module 264 analyzes data received from each TV set-top box 110, measures the quality of each broadcast channel of the TV set-top box 110, and determines the quality of each broadcast channel based on the measured quality The quality measurement report in which the failure result is recorded is mapped to the identification information of the TV set top box 110 and is stored in the storage unit 250. Specifically, when audio data and video data are received from the TV set-top box 110 through the video acquisition module 261, the channel quality measurement module 264 analyzes each data to check the quality of each broadcast channel, .

At this time, the channel quality measurement module 264 captures a video image at regular intervals and compares the captured image with a previously stored video not-received image to determine whether the number of non-image sensing times is equal to or greater than a threshold number of times If it is counted, it is determined that a No Video failure in which a video signal is not received in the TV set top box 110 has occurred. In addition, the channel quality measurement module 264 compares the captured image with a previously stored black screen image. If the number of times of black screen detection is greater than a predetermined threshold number (for example, three times) 110, it is determined that a video signal is received but a black screen failure indicated by the black screen occurs. In addition, the channel quality measurement module 264 sequentially captures the video images at regular intervals. If the current captured image and the immediately preceding captured image are the same, the video signal is received in the TV set-top box 110, It is judged that a static screen failure has occurred. In addition, the channel quality measurement module 264 captures audio data at regular intervals, and when the signal level of the captured audio data does not belong to the set range (for example, -3db to 3db), the channel quality measurement module 264 It is determined that an audio failure has occurred.

The modem diagnostic unit 270 performs a function of determining whether the Internet modem 120 has failed or not, and includes a signal strength measurement module 271 and a modem quality measurement module 272.

The signal strength measurement module 271 mounts a wireless access point (AP) and measures the strength of the wireless signal transmitted from the Internet modem 120 to be inspected through the wireless AP. In addition, the signal strength measurement module 271 transmits a wireless signal using the wireless AP so that the internet modem 120 receives its wireless signal.

The modem quality measurement module 272 measures the quality of the Internet modem 120 to be inspected by using the communication unit 220 and the signal strength measurement module 271 to determine whether or not a failure has occurred, The measurement report is mapped to the identification information of the Internet modem 120 and is stored in the storage unit 250.

Specifically, the modem quality measurement module 272 temporarily assigns the IP of the Internet modem 120, and then uses the signal strength measurement module 271 to calculate the strength of the forward radio signal received from the Internet modem 120 . The modem quality measurement module 272 transmits the reverse radio signal to the Internet modem 120 using the signal strength measurement module 271 and transmits the radio signal sensitivity to the Internet modem 120 using the communication unit 220 And receives the radio signal strength information from the Internet modem 120 to determine how much the reverse radio signal transmitted from the signal strength measurement module 271 is received by the Internet modem 120 .

In addition, the modem quality measurement module 272 generates the upload traffic of the Internet modem 120 to check the upload speed, as well as the packet delay time and the packet loss rate that occurred during the upload. Specifically, the modem quality measurement module 272 transmits the test packet, whose destination is designated to the traffic server 500, to the Internet modem 120 for a certain period of time (for example, 3 minutes) using the communication unit 220, And generates upload traffic in which a test packet is transmitted from the modem 120 to the traffic server 500. In addition, the modem quality measurement module 272 receives the upload speed, the packet delay time, and the packet loss rate from the traffic server 500 that analyzed the test packet.

Also, the modem quality measurement module 272 generates download traffic of the Internet modem 120 to check the download speed, and confirm the packet delay time and packet loss rate that occurred during the downloading. That is, the modem quality measurement module 272 instructs the traffic server 500 to transmit the test packet to the Internet modem 120, and the download traffic to which the test packet is transmitted from the traffic server 500 to the Internet modem 120 Generated during the set time. The modem quality measurement module 272 receives the test packet from the Internet modem 120 through the communication unit 220 and analyzes the test packet to check the download speed of the Internet modem 120, The packet delay time and the packet loss rate are checked.

Preferably, the modem quality measurement module 272 may perform unicast or multicast communications with one or more Internet modems 120 to simultaneously measure quality for each Internet modem 120. [

Meanwhile, the modem quality measurement module 272 determines whether the measured upload speed and / or download speed is lower than a predetermined threshold speed, the packet loss rate, the packet delay deviates from a predefined normal range, And determines that the Internet modem 120 is defective when the reverse radio signal strength is measured to be equal to or less than the threshold strength.

The VoIP terminal diagnosis unit 280 forms a call session with the VoIP terminal 130 using the communication unit 220 and verifies whether or not the VoIP terminal 130 has a failure via RTP (Real-time Transfer Protocol) . The VoIP terminal diagnosis unit 280 includes a loopback setting module 281 and a call quality measurement module 282.

The loopback setting module 281 forms a call session with the VoIP terminal 130 through the communication unit 220 and transmits an RTP loopback packet to the VoIP terminal 130. The loopback setting module 281 transmits an RTP loopback And receives the packet.

The call quality measurement module 282 analyzes the RTP packet received through the loopback setting module 281 to determine whether the VoIP terminal 130 of the VoIP terminal 130 has failed or not, The quality measurement report in which the identification information of the terminal 130 is recorded is stored in the storage unit 250. Specifically, the call quality measurement module 282 analyzes the RTP packet received through the loopback setting module 281 and calculates packet loss, delay, R-factor, and MOS (Mean Opinion Score) do. In addition, the call quality measurement module 282 stores information on whether or not call connection with the VoIP terminal 130 is successful, information on whether or not the call completion is normally performed, and the time required until the call is connected. Meanwhile, the call quality measurement module 282 determines the VoIP terminal 130 as a failed terminal when the packet loss, the packet delay, the R-factor, and the MOS deviate from a preset normal range. The call quality measurement module 282 may determine that the VoIP terminal 130 is connected to the VoIP terminal 130 when the call connection to the VoIP terminal 130 is failed or the call is terminated abnormally, And discriminates the terminal as a failed terminal.

3 is a flowchart illustrating a method of diagnosing a TV set-top box failure in a TPS terminal unattended diagnostic system according to an exemplary embodiment of the present invention.

3, the terminal identification unit 210 obtains the identification information of the TV set-top box 110 through the barcode reader 300 and transmits the identification information to the set-top box diagnosis unit 260 (S301) . That is, when the administrator scans the barcode attached to the TV set-top box 110 through the barcode reader 300, the terminal identification unit 210 receives the identification information of the TV set-top box 110 from the barcode reader 300 And transmits it to the set-top box diagnosis unit 260

Then, the channel change module 263 of the set-top box diagnosis unit 260 generates a quality measurement report in which the identification information of the TV set-top box 110 and the quality measurement time are recorded (S303). Then, the channel change module 263 extracts and analyzes the channel change script in the storage unit 250, and confirms the channel change schedule (S305). Then, the channel change module 263 confirms the fixed time of the broadcast channel designated as the first order in the channel change schedule and the fixed time of the broadcast channel, and transmits the channel change infrared radio signal for instructing channel change to the broadcast channel The broadcast channel of the TV set-top box 110 is changed (S307).

When the broadcast channel of the TV set-top box 110 is changed, the video acquisition module 261 receives the audio data and the video data for the current broadcast channel from the corresponding TV set-top box 110, Analyzes the received audio data and video data, and analyzes the quality of the broadcast channel (S309). When the quality analysis is completed, the channel quality measurement module 264 records the broadcast channel quality measurement result in the quality measurement report generated in step S303 (S311). At this time, the channel quality measurement module 264 determines whether a failure such as a static screen failure, a non-video failure, a black screen failure, an audio failure, or the like occurs in the corresponding broadcast channel. If a failure occurs, Record.

Specifically, when the channel change module 263 changes the channel of the TV set top box 110, the video acquisition module 261 receives the video data for the current broadcast channel from the corresponding TV set top box 110, The channel quality measurement module 264 captures the broadcast screen of the channel at a predetermined interval (for example, 0.3 second intervals), and then compares the captured image with the previously stored video signal non-received image And checks whether the similarity degree of the two images is equal to or greater than a threshold value (for example, 90%). At this time, the channel quality measurement module 264 converts the captured image and the video signal non-receiving image into a gray image, respectively, to calculate a darkness distribution chart. Then, the darkness distribution map of the captured image, By analyzing the distribution diagram using the Bhattacharyya technique, the similarity of the two images can be confirmed. The channel quality measurement module 264 increases the number of non-image sensing times by '1' if the similarity threshold value is equal to or greater than the threshold value, and determines whether the increased number of non-image sensing times is greater than or equal to a threshold number If it is determined that the number of non-image sensing times is equal to or greater than the threshold number of times, it is determined that a non-video failure in which no video signal is received from the current channel of the TV set-top box 110 has occurred.

In addition, the channel quality measurement module 264 compares the captured image with a previously stored black screen image to check whether the similarity degree between the two images is equal to or greater than a threshold value (for example, 90%). The video signal is received from the current channel of the TV set-top box 110 if the number of times of screen detection is increased by 1 and the number of times of black screen detection is not less than a threshold number (for example, three times) It is determined that an unprinted black screen failure has occurred. That is, if the number of times that an image received from the TV set-top box 110 generates a black screen is equal to or more than a threshold number, the channel quality measurement module 264 determines that a black screen failure has occurred in the current channel of the TV set- do.

In addition, the channel quality measurement module 264 compares the captured image with the captured image in the immediately preceding capture cycle to determine whether the similarity of the two images is a threshold value (e.g., 90%), If the similarity threshold value is not less than the threshold value, the number of times of the static screen detection is increased by '1', and whether the increased number of times of the static screen detection is greater than or equal to the threshold number of times (for example, three times) is confirmed. Then, the channel quality measurement module 264 determines that a static screen failure occurs in which the video signal is interrupted in the current channel of the TV set-top box 110 when the number of static screen senses is equal to or greater than the threshold number of times.

The channel quality measurement module 264 also checks whether the signal level of the audio data obtained through the moving image acquisition module 261 belongs to a normal range (for example, -3db to 3db) , It is determined that an audio failure has occurred in the current channel of the TV set-top box 110. In addition, the channel quality measurement module 264 monitors whether an abnormal reboot or power-off occurs in the TV set-top box 110 performing the quality measurement, and when the abnormal reboot or power-off occurs, the TV set- It may be determined that there is a hardware failure.

On the other hand, the channel change module 263 counts the fixed time of the broadcast channel designated in the first order and confirms whether or not the count is ended (S313). At this time, if the fixed time of the broadcast channel is not terminated, the channel change module 263 guides the broadcast quality of the broadcast channel to be continuously measured by the channel quality measurement module 264. On the other hand, when the fixed time of the broadcast channel ends, the channel change module 263 determines whether the quality check for all the broadcast channels is completed (S315). If the quality check of all the broadcast channels is not completed, the channel change module 263 checks the broadcast channel corresponding to the next sequence and the fixed time of the broadcast channel, And changes the broadcasting channel of the TV set-top box 110 by transmitting the changed infrared radio signal. The channel quality measurement module 264 receives the audio data and the video data of the changed broadcast channel from the TV set top box 110 using the video acquisition module 261 and analyzes the quality of the changed broadcast channel, Record in quality measurement report. That is, if the checking of all the broadcast channels is not completed, the channel change module 263 and the channel quality measurement module 264 repeat step S307 and subsequent steps until the quality check for all the broadcast channels is completed.

On the other hand, the channel change module 263 checks the quality of each broadcast channel based on the quality measurement report of the TV set-top box 110 when the quality check of all the broadcast channels is completed, , It is determined that the TV set top box 110 is defective and the failure determination information is recorded in the quality measurement report generated in step S303 and then the quality measurement report is stored in the storage unit 250 and is output to the display unit 240 (S317). On the other hand, if the quality of all broadcast channels is normally measured, the channel quality measurement module 264 determines that the TV set top box 110 is good, records the good quality determination information in the quality measurement report, Stores the report in the storage unit (250), and outputs the report to the display unit (240). Accordingly, the administrator checks the quality measurement report output to the display unit 240 to check whether the TV set-top box 110 is defective.

On the other hand, the TPS terminal unattended diagnostic system according to the present invention may automatically adjust the channel change schedule for the specific TV set-top box 110 based on the stored quality measurement report of the set-top box.

4 is a flowchart illustrating a method of adjusting a channel change schedule in a TPS terminal unattended diagnostic system according to an embodiment of the present invention.

4, when the administrator scans the barcode attached to the TV set-top box 110 through the barcode reader 300, the terminal identification unit 210 transmits the identification information of the TV set-top box 110 to the barcode reader 300 And transmits it to the set-top box diagnosis unit 260 (S401).

Then, the channel change module 263 extracts the channel change script from the storage unit 250, analyzes the channel change script, and confirms the channel change schedule (S403). Next, the channel change module 263 extracts the quality measurement report of the TV set top box 110, which has been previously measured for quality, from the storage unit 250 based on the identification information of the TV set top box 110, The respective quality measurement reports are analyzed to determine whether there is a broadcast channel whose quality has been determined to be bad in the TV set top box 110 in the past (S405, S407).

When there is a broadcast channel whose quality is determined to be bad in the TV set-top box 110 in the past, the channel change module 263 changes the fixed time of the broadcast channel, The channel change schedule is adjusted (S409). That is, the channel change module 263 does not apply the channel change schedule according to the channel change script set by the administrator or the default to the TV set-top box 110, The channel change schedule is adjusted so that the fixed time of the broadcast channel in which the failure occurs is longer after checking the quality measurement report stored in the storage unit 250. [ For example, if it is determined that '3ch', '4ch', and 'VOD service channel' among the channels of the TV set top box 110 are bad in the past, the channel change module 263 may change the '3ch' ', And' VOD service channel 'is greater than or equal to the precise analysis time (for example, 60 seconds).

Next, the channel change module 263 changes each channel according to the re-adjusted channel change schedule, and the channel quality measurement module 264 analyzes the video data and the audio data of the changed channel, Analyze. That is, the channel change module 263 and the channel quality measurement module 264 proceed to step S307 and subsequent steps of FIG. 3 according to the changed channel change schedule.

5 is a flowchart illustrating a method for diagnosing a failure of an Internet modem in a TPS terminal unattended diagnostic system according to an embodiment of the present invention.

5, the terminal identification unit 210 obtains the identification information of the Internet modem 120 from the barcode reader 300 and transmits the identification information to the set-top box diagnosis unit 260 (S501). That is, when the administrator scans a barcode attached to the Internet modem 120 to be inspected through the barcode reader 300, the terminal identification unit 210 transmits the identification information of the Internet modem 120 to be inspected to the barcode reader 300, And transmits it to the modem diagnosis unit 270.

Then, the modem quality measurement module 272 of the modem diagnosis unit 270 generates a quality measurement report in which the identification information of the Internet modem 120 and the quality measurement time are recorded (S503). Next, the modem quality measurement module 272 of the modem diagnosis unit 270 temporarily allocates the IP of the Internet modem 120 (S505).

Next, the modem quality measurement module 272 measures the strength of the radio signal transmitted from the Internet modem 120 using the signal strength measurement module 271, and compares the measured radio signal intensity with the forward radio signal strength Information is recorded in the quality measurement report of the Internet modem 120 as information (S507). The modem quality measurement module 272 then transmits the wireless signal to the Internet modem 120 using the signal strength measurement module 271 and transmits the wireless signal sensitivity to the Internet modem 120 using the communication unit 220 Send the requesting message. The modem quality measurement module 272 receives the wireless signal strength information measured by the Internet modem 120 from the Internet modem 120 and measures the wireless signal transmitted from the signal strength measurement module 271 to a certain intensity After confirming that it is received at the Internet modem 120, the confirmed radio signal strength is recorded in the quality measurement report of the Internet modem 120 as the reverse radio signal strength information.

Next, the modem quality measurement module 272 instructs the traffic server 500 to transmit the test packet to the Internet modem 120 and transmits the test packet to the Internet modem 120 from the traffic server 500. [ (S509). That is, the modem quality measurement module 272 arbitrarily generates the download traffic of the Internet modem 120 by causing the test packet to be transmitted to the Internet modem 120 through the traffic server 500. The modem quality measurement module 272 receives the test packet from the Internet modem 120 through the communication unit 220 and analyzes the test packet to determine whether the test packet is an Internet modem 120, and records the download quality in the quality measurement report of the Internet modem 120 generated in step S503 (S511). Specifically, the modem quality measurement module 272 checks the number of received bits per second of the test packet received from the Internet modem 120, calculates the average download speed, the maximum download speed, and the minimum download speed of the Internet modem 120 , And calculates the delay time and the packet loss rate for the test packet, and records the calculated information in the quality measurement report of the Internet modem 120.

Next, the modem quality measurement module 272 transmits the test packet whose destination is set to the traffic server 500 to the Internet modem 120 for a certain period of time (for example, 3 minutes) using the communication unit 220, And generates the upload traffic from the modem 120 to the traffic server 500 (S513). That is, the modem quality measurement module 272 transmits the test packet to the Internet modem 120 through the communication unit 220 and causes the Internet modem 120 to transmit the test packet to the traffic server 500, And arbitrarily generates upload traffic of the Internet modem 120.

Then, the traffic server 500 analyzes the test packet received from the Internet modem 120, measures the upload quality of the Internet modem 120 including the upload speed, the packet loss rate, the packet delay, and the like, Reports the upload quality of the Internet modem 120 to the diagnostic apparatus 200. [ Next, the communication unit 220 of the diagnostic apparatus 200 receives the upload quality from the traffic server 500, and the modem quality measurement module 272 transmits the received upload quality to the Internet modem 120 ) ≪ / RTI > (S515).

When the wireless signal strength, upload and download quality measurement of the Internet modem 120 is completed, the modem quality measurement module 272 determines whether the Internet modem 120 is defective based on the quality measurement report of the Internet modem 120 And records the result of the determination in the quality measurement report of the Internet modem 120, stores the quality measurement report in the storage unit 250, and outputs the quality measurement report to the display unit 240 (S517). Specifically, the modem quality measurement module 272 determines whether the forward or reverse radio signal strength of the Internet modem 120 is out of the preset normal intensity range, or whether the upload or download speed of the Internet modem 120 is a predetermined normal speed It is determined that the Internet modem 120 is defective when the packet loss rate or packet delay occurring at the time of uploading or downloading deviates from the predetermined loss range or delay range and the determined information Information) in the quality measurement report of the Internet modem 120. [ On the other hand, the modem quality measurement module 272 may determine that the Internet modem 120 (e.g., the Internet modem 120) has received a request from the Internet modem 120 if the forward or reverse radio signal strength, rate of download and upload, packet loss rate, 120) is normal, and the good product determination information is recorded in the quality measurement report of the Internet modem (120).

6 is a flowchart illustrating a method for diagnosing a failure of a VoIP terminal in a TPS terminal unattended diagnostic system according to an embodiment of the present invention.

6, the terminal identification unit 210 obtains the identification information of the VoIP terminal 130 from the barcode reader 300 and transmits the identification information to the VoIP terminal diagnosis unit 280 (S601). Then, the call quality measurement module 282 of the VoIP terminal diagnosis unit 280 generates a quality measurement report in which the identification information of the VoIP terminal 130 and the quality measurement time are recorded (S603). The call quality measurement module 282 then directs the loopback setting module 281 to set the call loopback to the VoIP terminal 130. [

Next, the loopback setting module 281 makes an automatic answering call to the VoIP terminal 130 using the communication unit 220 (S605). That is, the loopback setting module 281 transmits an SIP-based Invite message automatically answered by the VoIP terminal 130 to the VoIP terminal 130 when a call is originated.

Next, the call quality measurement module 282 monitors whether or not a call response message is received from the VoIP terminal 130 through the communication unit 220, and when the call response message is received, And records the call connection time and call connection confirmation information in the quality measurement report generated in step S603 (S607, S609).

Upon receiving the call response message from the VoIP terminal 130, the loopback setting module 281 returns to the diagnostic apparatus 200 and transmits an RTP loopback packet including the test voice to the VoIP terminal 130 through the communication unit 220. [ And receives the RTP loopback packet returned from the VoIP terminal 130 using the communication unit 220 (S611).

The call quality measurement module 282 analyzes the RTP loopback packet received from the loopback setting module 281 and measures the call quality of the VoIP terminal 130 and records it in the quality measurement report of the VoIP terminal 130 (S613). Specifically, the call quality measurement module 282 analyzes the RTP loopback packet received through the loopback setting module 281 to calculate a packet loss rate, a packet delay, an R-factor, and a MOS (Mean Opinion Score) And records it in the quality measurement report of the VoIP terminal 130.

Next, the call quality measurement module 282 instructs the loopback setting module 281 to stop the call when the predetermined test call connection time has elapsed, and the loopback setting module 281 transmits a call end notification message (i.e., Bye) to the VoIP terminal 130 using the communication unit 220. Then, the communication quality measurement module 282 confirms whether or not a normal call termination is performed by checking whether or not a response message to the call termination notification message is received from the VoIP terminal 130 through the communication unit 220, And records the result in the quality measurement report of the VoIP terminal 130.

Packet delay, R-factor, MOS, call duration, call connection information, call termination information, and call connection information recorded in the quality measurement report of VoIP terminal 130 And stores the result of the determination in the quality measurement report of the VoIP terminal 130 and stores it in the storage unit 250. The display unit 240 displays the result of the determination in the quality measurement report of the VoIP terminal 130, (S615). That is, the call quality measurement module 282 checks whether the packet loss, the packet delay, the R-factor, and the MOS are out of the packet loss allowance range, the packet delay tolerance range, the R- If any one of the VoIP terminals 130 is out of the allowable range, the VoIP terminal 130 is determined as a failed terminal and the failure determination information is recorded in the quality measurement report of the VoIP terminal 130. The call quality measurement module 282 may determine that the VoIP terminal 130 is connected to the VoIP terminal 130 when the call connection to the VoIP terminal 130 is failed or the call is terminated abnormally, The failure determination information is recorded in the quality measurement report of the VoIP terminal 130. [

As described above, the TPS terminal unattended diagnostic system according to the present invention automatically checks the quality of the digital TV set top box 110, the internet modem 120, and the VoIP terminal 130 and provides the result to the manager , And saves labor and time to determine whether the TPS terminal is defective.

While the specification contains many features, such features should not be construed as limiting the scope of the invention or the scope of the claims. In addition, the features described in the individual embodiments herein may be combined and implemented in a single embodiment. Conversely, various features described in the singular < Desc / Clms Page number 5 > embodiments herein may be implemented in various embodiments individually or in combination as appropriate.

Although the operations have been described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that all described operations are performed to obtain a sequence of sequential orders, or a desired result . In certain circumstances, multitasking and parallel processing may be advantageous. It should also be understood that the division of various system components in the above embodiments does not require such distinction in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

The method of the present invention as described above can be implemented by a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto optical disk, etc.). Such a process can be easily carried out by those skilled in the art and will not be described in detail.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

110: TV set-top box 120: Internet modem
130 VoIP terminal 200 Diagnostic device
210: terminal identification unit 220:
230: line setting section 240: display section
250: Storage unit 260: Set-top box diagnosis unit
261: Movie acquisition module 262: Script setting module
263: Channel change module 264: Channel quality measurement module
270: modem diagnosis unit 271: signal strength measurement module
272: Modem quality measurement module 280: VoIP terminal diagnosis part
281: Loopback setting module 282: Call quality measuring module
300: Barcode reader 400: Line connector
500: traffic server

Claims (6)

A TPS terminal unattended diagnostic system for automatically diagnosing whether a TPS terminal is defective,
A storage unit for storing a quality measurement report and a channel change script;
A modem diagnostic unit for analyzing a packet received or transmitted from the Internet modem to determine whether the Internet modem has failed, generating a quality measurement report of the Internet modem in which the determination result is recorded, and storing the generated report in the storage unit;
And a quality measurement report of the VoIP terminal in which the result of the determination is recorded is generated and stored in the storage unit of the VoIP terminal, A VoIP terminal diagnosing unit storing the VoIP terminal; And
Extracts and analyzes a channel change script in the storage unit, recognizes a channel change schedule in which fixed time of each broadcast channel is set, changes the broadcast channel of the digital TV set-top box according to the channel change schedule, The digital TV set-top box receives the audio data and the video data of the broadcast channel, analyzes the received data, measures quality of each channel of the digital TV set-top box, And a set-top box diagnosing unit for generating a quality measurement report of the digital TV set-top box in which a failure determination result is recorded, and storing the generated quality measurement report in the storage unit,
The set-
A previous quality measurement report for the digital TV set-top box is extracted from the storage unit, and the quality measurement report is analyzed to check whether there is a broadcast channel having a poor broadcast status in the digital TV set- And adjusts the channel change schedule so that a fixed time of a broadcast channel having a poor status becomes longer. delete The method according to claim 1,
The set-
Providing an interface capable of setting a channel change schedule to an administrator, and updating the channel change script of the storage unit based on information input through the interface. The method according to claim 1 or 3,
Wherein the modem diagnosis unit comprises:
Generates download traffic or upload traffic to the Internet modem, and analyzes packets according to the traffic occurrence to measure download quality or upload quality of the Internet modem. 5. The method of claim 4,
Wherein the modem diagnosis unit comprises:
Wherein the TPS terminal unattended diagnostic system determines whether the Internet modem is faulty by measuring the strength of a forward radio signal transmitted through the Internet modem and the strength of a reverse radio signal received through the Internet modem. The method according to claim 1 or 3,
The VoIP terminal diagnosing unit,
Wherein the RTP loopback packet is transmitted to the VoIP terminal, the RTP loopback packet received from the VoIP terminal is analyzed, and the call quality of the VoIP terminal is analyzed.

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