JP6405660B2 - Automatic operation monitoring device for terrestrial / BS digital TV program transmission - Google Patents

Description

  The present invention relates to an operation monitoring system in terrestrial / BS digital television broadcasting.

  In terrestrial / BS digital broadcasting, video, audio, captions, data broadcasting, electronic program guide (EPG), and one-segment broadcasting corresponding to digital television services are transmitted. In the broadcasting company, the person in charge of operation checks the program transmission status visually based on the program information form output from the organization information system, and whether it is broadcast normally or emergency programs such as disasters and incidents We were doing business such as changing to This method is labor intensive and has limitations in maintaining broadcast quality.

Japanese Patent Application Laid-Open No. 8-70476 discloses a technique for automatically confirming whether a television broadcast program has been broadcast according to a schedule. Here, the identification information for identifying the program is superimposed on the program information to be broadcast described in the operation data, and is transmitted as a character multiplexed signal. The receiver acquires the identification information of the currently broadcast program from the character multiplexed signal received using the character multiplex decoder, compares it with the identification information of the program to be broadcast at that time, and outputs an alarm if there is a mismatch. .

  The technique described in Patent Document 1 is a technique for monitoring whether or not a program described in operation data is actually being broadcast. However, actual terrestrial / BS digital broadcasting programs contain various information such as video, audio, and subtitles. With the spread of digital broadcasting, secondary information such as program information used for EPG and data broadcasting will also be monitored. When all of this information is character-multiplexed and transmitted as a character-multiplexed signal together with a broadcast wave, the capacity allocated to video and audio information must be reduced.

  Means for comparing the organization information data having the program parameters acquired from the storage unit and the first parameter including the program parameters of the first transport stream, and outputting a comparison result; and an alarm based on the comparison result Means for outputting.

  Information necessary for terrestrial / BS digital broadcasting such as video, audio, subtitles, data broadcasting, EPG, and 1Seg broadcasting can be automatically monitored.

First embodiment block diagram Example of organization information data TS example TS analysis flow Second embodiment block diagram

  Embodiments of the present invention will be described in detail with reference to the drawings. Embodiments of the present invention are not limited to the embodiments described below, and various modifications are possible within the scope of the technical idea.

[First embodiment]
In the present embodiment, program operation monitoring is performed based on a transport stream (TS). The program operation is monitored based on the TS immediately after being encoded at the broadcasting station, the TS immediately after being received by the receiver, and the organization information data.

[Description of configuration]
Figure 1 shows a block diagram of this embodiment. This operation monitoring system consists of database 1 (Data Base, DB), automatic program control unit 2 (Automatic Program control System, APS), switcher 3 (Switcher, SWER), encoding / multiplexing unit 4 (Encoder, ENC / MCS) Control System, MCS), transmitter 5 (Transmitter, TX), receiver 6 (Receiver, RX), TS analyzer 7, parameter comparator 8, and alarm generator 9. Details of each component will be described below.

  DB1 stores the organization information data and outputs it to APS2. Figure 2 shows an example of organization information data. Organization information data is required for the composition of broadcast programs such as video parameters (stereo, monaural, 16: 9, etc.), audio parameters (dual, 5.1 surround, etc.), subtitle parameters (Japanese, bilingual, etc.) Various parameters are described in detail along with the identifier. Hereinafter, in the present application, these parameters are collectively referred to as program parameters.

  APS2 outputs to SWER3 and ENC / MCS4 control signals that control switching processing in SWER3 and encoding and multiplexing processing in ENC / MCS4 based on the program parameters specified in the organization information data obtained from DB1. . Also, the composition information data acquired from DB1 is output to the parameter comparison unit. The control signal is created based on a standard described in “ARIB STD-B32”, for example.

  SWER3 performs switching processing of externally acquired video and audio data. After that, the video and audio data after the switching process is output to ENC / MCS4.

  ENC / MCS4 encodes and multiplexes the switched video and audio data to create a TS. TS is a signal format premised on transmitting packetized video and audio data (PES), and the TS packet length is 188 bytes. Hereinafter, TS1 output from ENC / MCS4 is referred to as TS1. Each TS packet includes a TS header (TH) including a packet identifier and a PES. Figure 3 (a) shows the configuration of TS1. ENC / MCS4 outputs TS1 to TX5 and parameter comparison unit 8, respectively.

  TX5 sends TS1 obtained from ENC / MCS4 to RX6.

  RX 6 receives TS 1 transmitted from TX 5 and outputs it to parameter comparison unit 8. Hereinafter, TS2 output from RX6 is TS2. Figure 3 (b) shows the TS2 configuration. Like TS1, it consists of TH and PES.

  The TS analysis unit 7 analyzes the acquired TS1 and TS2. Video and audio data are encoded and multiplexed based on the program parameters specified by the organization information data in ENC / MCS4. Therefore, program parameters are reflected in TS1 and TS2. The identifier set for each program parameter and the time information such as the broadcast time are extracted from the acquired TS1 and TS2 and output to the parameter comparison unit 8. Hereinafter, an identifier output by the TS analysis unit is a TS identifier, and time information is TS time information.

  The parameter comparison unit 8 performs processing for comparing the TS identifier and TS time information acquired from the TS analysis unit 7 with the identifier and time information specified in the organization information data acquired from the APS2. By performing this processing, the TS performs processing for confirming whether or not encoding / multiplexing processing conforming to the broadcast standard is performed. Actually, since each device has a processing time and a transmission processing time, the TS time information is delayed with respect to the time specified by the organization information data. Therefore, prior to the comparison with the time information specified in the composition information data, correction is performed in consideration of this delay time. The delay time is a fixed value determined by the device used and the reception environment. Thereafter, the parameter comparison result is output to the alarm creating unit 9.

  The alarm creation unit 9 creates an alarm based on the comparison result acquired from the parameter comparison unit 8. If the identifier and time information specified in the composition information data do not match the TS identifier and TS time information after correcting the delay time, an alarm is generated and output to a program operator (not shown). If they match, no alarm is created.

[Description of operation]
Next, operation | movement of the operation monitoring apparatus in this embodiment is demonstrated using FIG.

  DB1 outputs the composition information data to APS2 (S1). The output timing is several times a day. In other cases, the composition information data is updated to APS2 each time it is updated. Therefore, APS2 can always hold the latest organization information data.

  APS2 acquires organization information data from DB1. Based on the acquired organization information data, a control signal is output to SWER3 and ENC / MCS4 (S2), and an encoding mode and information to be multiplexed are designated. Further, the composition information data is output to the parameter comparison unit 8 (S3).

  SWER3 performs switching processing on the video and audio data acquired from the outside based on the control signal from APS2 (S4). After that, the video and audio data subjected to switching processing are output to ENC / MCS4.

  ENC / MCS4 encodes and multiplexes the switched video and audio data obtained from SWER3 based on the control signal from APS2 to create TS1 (S5). Thereafter, the created TS1 is output to the TX5 and the TS analyzer 7.

  TX5 transmits TS1 acquired from ENC / MCS4 to RX6 (S6).

  RX6 outputs TS1 obtained from TX5 as TS2 to TS analysis unit 7 (S7).

  The TS analysis unit 7 acquires from ENC / MCS4 and RX6, respectively (S8). TS analysis is performed on the acquired TS1 and TS2, and a TS identifier and TS time information are acquired (S9). Thereafter, the TS identifier and TS time information are output to the parameter comparison unit 8.

  The parameter comparison unit 8 acquires the composition information data, the TS identifier, and the TS time information from the APS2 and the TS analysis unit 7, respectively. Subsequently, the TS time information is corrected in consideration of a predetermined delay time. Next, a process of comparing the identifier and time information specified in the composition information data with the TS2 identifier and time information after delay correction is performed. Subsequently, a process of comparing the identifier and time information specified in the composition information data with the identifier of TS1 and the time information after delay correction is performed (S10). After performing these processes, the comparison result is output to the alarm creating unit 9.

  The alarm creation unit 9 creates an alarm based on the comparison result acquired from the parameter comparison unit 8 (S11). If the composition information data identifier and time information do not match the TS identifier and the time information after delay correction, an alarm is generated and output to a program operator (not shown) (S12). If they match, no alarm is created. The same applies to TS1.

[Description of effects]
Since program parameters are acquired by analyzing TS, various information such as video, audio data, subtitles, and data for data broadcasting can be automatically monitored simultaneously.

  By comparing the TS output from ENC / MCS4 and the TS received at RX6, it is not possible to confirm whether or not the program operation is being performed along the organization information data. On the other hand, in this embodiment, normal program operation based on the broadcast standard can be performed by directly comparing the program parameters acquired by analyzing the TS received by RX6 and the program parameters specified in the organization information data. It can be confirmed whether or not it is performed.

  Further, the abnormality in the process from APS2 to ENC / MCS4 can be detected by comparing the identifier of TS1 and the time information after delay correction with the identifier and time information specified in the organization information data.

  Note that after the TS1 identifier and the time information after delay correction are matched with the identifier and time information specified in the organization information data, the parameter comparison unit 8 uses the TS1 identifier and the time information after delay correction. An abnormality in TX5 can be detected by comparing the identifier of TS2 and the time information after delay correction.

[Second Embodiment]
In this embodiment, in addition to TS1 and TS2, the operation of the program is monitored using video and audio data (DEC1) immediately after output from SWER3 and video and audio data (DEC2) obtained by decoding TS2. .

[Description of configuration]
A block diagram of this embodiment is shown in FIG. In this embodiment, in addition to the first embodiment, a decoding unit 10 (Decoder, DEC) and a DEC analysis unit 11 are added. Accordingly, the configurations of the parameter comparison unit 8 and the alarm creation unit 9 are also different from those in the first embodiment. Since other constituent elements are the same as those of the first embodiment, description thereof is omitted.

  DEC10 decodes TS2 acquired from RX6 and outputs it to DEC analysis unit 11.

  The DEC analysis unit 11 analyzes the video and audio between the video and audio data (DEC1) and DEC2 acquired from SWER3. The video data is analyzed for image breaks and mixing, and the audio data is analyzed for audio mixing and image consistency. After the analysis is completed, the analysis result is output to the alarm creation unit 9. In addition, time information such as analysis time is output to the parameter comparison unit 8. Hereinafter, the analysis result output from the DEC analysis unit is referred to as DEC status, and the time information is referred to as DEC time information.

  The parameter comparison unit 8 compares the composition information data acquired from the APS 2, the TS identifier and TS time information acquired from the TS analysis unit 7, and the DEC time information acquired from the DEC analysis unit 11. The comparison between the TS identifier and TS time information and the identifier and time information specified in the organization information data is as described in the first embodiment. Further, the DEC time information is corrected in consideration of a predetermined delay time in the same manner as the TS time information. The delay time is a fixed value determined by the device used and the reception environment. The corrected DEC time information is compared with the time information specified by the composition information data. Thereafter, the comparison results of TS and DEC are output to the alarm creating unit 9.

  The alarm creation unit 9 creates an alarm based on the comparison results regarding TS and DEC acquired from the parameter comparison unit 8 and the DEC status acquired from the DEC analysis unit 11. The alarm concerning TS is as described in the first embodiment. Regarding the DEC time information, if the DEC time information after correcting the delay time does not match the time information specified in the composition information data, an alarm is created and output to a program operator not shown. If they match, no alarm is created.

  Regarding the DEC status, it is an essential condition that video data is output continuously, so an alarm is promptly created when a signal break or abnormality is detected. For subtitles and data broadcasting, it is confirmed whether the encoding and multiplexing parameters comply with the organization information data. Depending on the program, there may be no subtitles or data broadcasting. Even if there is no subtitles in the program being broadcast (the subtitle information data is set to no subtitles), if the TS analysis unit detects subtitles, the conventional operation monitoring device determines that there is no abnormality. In the operation monitoring apparatus in this embodiment, it is determined that “there is abnormality”. Thereafter, an alarm relating to the program parameter determined to be abnormal is created and output to a program operator not shown. If no abnormality is detected, no alarm is generated.

[Description of operation]
The operation in this embodiment will be described.

  DB1 outputs the composition information data to APS2 (S1).

  APS2 acquires organization information data from DB1. A control signal is output to SWER3 and ENC / MCS4 based on the acquired composition information data (S2). Also, the obtained composition information data is output to the parameter comparison unit 8 (S3).

  SWER3 performs switching processing on the acquired video and audio data based on the control signal from APS2 (S4). Thereafter, the video and audio data subjected to the switching process are output to the ENC / MCS 4 and the DEC analysis unit 11. The video and audio data output from SWER4 is DEC1.

  ENC / MCS4 creates TS1 based on the video and audio data acquired from SWER3 (S5), and outputs it to TX5 and TS analysis unit 7, respectively.

  TX5 transmits TS1 acquired from ENC / MCS4 to RX6 (S6).

  RX6 receives TS1 from TX5, and outputs TS2 to TS analyzer 7 and DEC10, respectively (S13).

  The TS analysis unit 7 analyzes the acquired TS1 and TS2, and extracts program parameter identifiers and time information (S9). Thereafter, the TS identifier and TS time information are output to the parameter comparison unit 8.

  The DEC analysis unit 11 analyzes the video content and audio content of DEC1 and DEC2 obtained from SWER4 and DEC10, respectively, and extracts time information (S14). Thereafter, the DEC time information is output to the parameter comparison unit 8 and the DEC status is output to the alarm creation unit 9, respectively.

  The parameter comparison unit 8 performs a process of comparing the composition information data acquired from the APS, the TS identifier and TS time information acquired from the TS analysis unit 7, and the DEC time information acquired from the DEC analysis unit 11 (S15). First, the TS time information and the DEC time information are corrected in consideration of a predetermined delay time. Next, the process compares the identifier and time information specified in the composition information data with the TS2 identifier and time information after delay correction, and compares the time information of the composition information data with DEC2 time information after delay correction. Process. Next, the process compares the identifier and time information specified in the organization information data with the TS1 identifier and time information after delay correction, and the time information specified in the organization information data and DEC1 time information after delay correction. The process which compares is performed. After all the comparison processes are completed, the comparison result is output to the alarm creating unit 9.

  The alarm creation unit 9 creates an alarm based on the comparison result acquired from the parameter comparison unit 8 (S16). Comparison between the time information specified in the organization information data and the TS time information and DEC time information after delay correction did not match, and the identifier specified in the organization information data did not match the TS identifier And an alarm is generated when an abnormality is detected in the DEC status. Thereafter, the created alarm is output to a program operator not shown. If they match or no abnormality is detected in the DEC status, no alarm is generated.

[Description of effects]
TS analysis confirmed whether video and audio data were encoded or multiplexed according to the broadcast standard. In addition, the status of video and audio data can be monitored by comparing the video and audio data before encoding with the video and audio data obtained by decoding the TS received by RX. . That is, it is possible to detect video abnormalities such as video breaks and mixing, and audio abnormalities such as skipping.

  Automatic operation monitoring device for TV broadcasting.

1 DB
2 APS
3 SWER
4 ENC / MUX
5 TX
6 RX
7 TS analysis section
8 Parameter comparison section
9 Alarm generator
10 DEC
11 DEC analyzer

Claims (5)

An analysis unit that analyzes a signal input to the means for creating the first transport stream, outputs an analysis result, analyzes the second transport stream received by the receiver, and outputs time information;
Time information specified by the organization information data acquired from the storage unit is compared with the time information, and the program parameter specified by the organization information data and the program parameter of the first transport stream are included. A parameter comparison unit that compares the first parameter and outputs a comparison result;
And alarm creation unit for outputting an alarm based on the comparison result and the analysis result,
An automatic operation monitoring device characterized by comprising: The parameter comparison unit compares the program parameter specified in the organization information data with the first parameter including the program parameter of the first transport stream transmitted by a transmitter. Item 1. An automatic operation monitoring device according to item 1. The automatic operation monitoring apparatus according to claim 1, wherein the parameter comparison unit compares the first parameter with a second parameter including a program parameter of the second transport stream . Obtaining organization information data having program parameters;
Obtaining a first parameter including program parameters of a first transport stream;
Comparing the program parameter specified in the organization information data with the first parameter;
Analyzing the second transport stream received at the receiver and outputting time information;
Comparing the time information with the time information specified in the organization information data;
Analyzing a signal input to the means for creating the first transport stream, and outputting an analysis result;
Outputting an alarm based on the comparison result and the analysis result;
An automatic operation monitoring method characterized by comprising: Comparing the first parameter with a second parameter including a program parameter of the second transport stream including a program parameter of the second transport stream.
The automatic operation monitoring method according to claim 4, further comprising:

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