JP6707437B2 - Broadcast master system, switching method in the system, and program - Google Patents

Description

Embodiments of the present invention relate to a broadcast master system used in a broadcasting station, a switching method in the system, and a program.

In broadcasting stations such as television stations and radio stations, it must be avoided as much as possible that the broadcasting is interrupted due to a breakdown of the system in order to fulfill its mission (by the Ministry of Internal Affairs and Communications).

Therefore, in a broadcast master system for program broadcasting of many broadcasting stations, redundancy is provided by multiplexing to improve availability even in the unlikely event of a failure. In many cases, a dual hot standby system is adopted. Generally, a plurality of signal processing systems for a series of broadcasting sources, including a video source and time information to be combined with a video called a keyer, weather information, an emergency bulletin device, an encoder for compressing video and audio signals, etc. are constructed. ing.

In addition, in the broadcast master system, in general, a device that detects an abnormality in various devices in the broadcast master system, a device that detects a difference between signal processing systems configured with a plurality of systems, or the like causes an abnormality in each device. It has a function to detect and notify.

Furthermore, the broadcast master system is also provided with an automatic switching function for automatically switching the signal processing system when an abnormal state registered in advance is detected using such a function.

Atsushi Nagaishi, Toyohiko Mukaiyama, Masayuki Kaneda, "Terrestrial Digital Broadcasting Master Transmission System", Toshiba Review Vol. 59 No. 2 (2004), p7-17

However, in each signal processing system, a plurality of program services (for example, terrestrial digital broadcasting, BS broadcasting, one-segment broadcasting, internet transmission, etc.) are simultaneously processed. In addition to two services available for BS broadcasting, three services are available for digital terrestrial broadcasting. Therefore, in particular, after the adoption of terrestrial digital broadcasting, the number of program services simultaneously processed by one signal processing system is increasing, and depending on the broadcasting station, up to 10 program services can be simultaneously processed by one signal processing system. It can be processed.

Therefore, if the signal processing system is automatically switched when an abnormal state is detected, there is a possibility that the program service in which no abnormality has occurred may be adversely affected.

Considering the situation in which many program services are simultaneously processed in each signal processing system as in the current situation, the switching must be performed at an appropriate timing determined in consideration of the broadcasting situation of a plurality of program services. .. However, the conventional broadcast master system can detect an abnormality, but cannot determine an appropriate timing for switching.

Therefore, although the broadcast master system has an automatic switching function, the function is not used in many cases, and the switching operation is often performed by an operator's manual operation. In this case, the operator needs to constantly monitor the broadcast master system. Then, when an abnormal state is detected, it is necessary to quickly determine an appropriate switching timing in consideration of the configuration and specifications of the broadcast master system or the broadcasting status of a plurality of program services at that time.

However, it is not easy for the operator to quickly determine the optimum switching timing according to the broadcast status of a plurality of program services. Depending on the skill level of the operator, while searching for the optimum switching timing, the timing may be missed.

In this way, the operator is required to have a high level of skill, and if an inappropriate switching is made due to a mistake in judgment, it may cause a break in the broadcast, a disturbance in the image, a mistake in the composition of the keyer, etc. However, the determination of the timing requires a great deal of skill and wisdom, and the operator's mental and physical burden is considerably large.

Therefore, there is a demand for a technique that enables appropriate switching according to the broadcast status of a plurality of program services when an abnormality is detected.

A problem to be solved by the present invention is to provide a broadcast master system capable of performing appropriate switching according to the broadcast status of a plurality of program services when an abnormality is detected, a switching method in the system, and To provide a program.

The broadcast master system according to the embodiment includes a first signal processing system for generating first broadcast data, which is sent from the broadcast master system, and a second signal processing system for generating second broadcast data similar to the first broadcast data. Signal processing system, detection means for detecting an abnormality that has occurred in the first signal processing system, and when the detection means detects an abnormality, the second broadcast data is broadcast instead of the first broadcast data. Setting means for setting a method for switching from the first signal processing system to the second signal processing system so as to be transmitted from the master system, and the first signal processing according to the method set by the setting means. A switching means for switching from the system to the second signal processing system, and the setting means, if an abnormality is detected by the detection means, if a predetermined switching condition is satisfied. The switching means is set so as to automatically start switching, and if not satisfied, a semi-automatic switching function is provided so that the operator can manually instruct the switching means when to start switching.

It is a conceptual diagram which shows an example of a terrestrial digital broadcasting system. It is a functional block diagram which shows an example of the broadcast master system which concerns on this embodiment. It is a general-view figure which shows an example of the control panel which contained the monitoring system. It is an example of a program service schedule diagram for explaining switching conditions. It is a flowchart which shows the flow of operation in an automatic switching system. It is a flowchart which shows the flow of operation in a manual switching system. It is a flowchart which shows the flow of operation in a semi-automatic switching system.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a conceptual diagram showing an example of a terrestrial digital broadcasting system. The broadcast master system 10 is provided in the broadcast station 100 and generates a transport stream (TS). The TS is transmitted to, for example, the radio tower 300 via the communication network 200 such as a leased line network. The radio tower 300 digitally modulates the TS signal and radiates it in the microwave band. The radiated radio waves are received by the image receiver of each home 400, and video and audio are reproduced. As schematically shown, the equipment provided in, for example, a monitoring room of the broadcasting station 100 is large-scale and diverse, and has a large number of monitor screens and standing racks (shelf).

FIG. 2 is a functional block diagram showing an example of the broadcast master system 10 according to the present embodiment. The broadcast master system 10 includes an information system 15, a system processing system 20, a transmission system 30, a monitoring system 40, and a clock node 80. These are interconnected via an intra-station network 50 such as a LAN (Local Area Network).

The intra-office network 50 includes a general-purpose network using a general-purpose protocol such as TCP/IP and a real-time network such as SECNET3. The general-purpose network is mainly used for transmitting image/audio data, and the real-time network is used for exchanging control information and various electronic messages between broadcasting-related devices.

The information system 15 includes a broadcast information scheduler 16 and a database 17.

The system processing system 20 has a redundant configuration including a system processing system 20 (#1) of one system and a system processing system 20 (#2) of two systems, and each system has a switcher (SW) 21 and an encoder ( ENC) 23, SI transmission unit 24, VBR 25, multiplexing unit (MUX) 26, and SCR 27, and also a control system 60.

The switcher 21 takes in the CM content from the CM server 70, the video/audio signals from the line material 71 and the studio 72, or the generated signal 73 generated from various equipment from the transmission system 30, and switches the route according to the program table. It is connected to the encoder 23 at the next stage. The encoder 23 is a so-called encoding/multiplexing controller (EMC: Encoder & Multiplexer Controller) and controls encoding and multiplexing of the input signal.

The encoder 23 encodes the video signal/audio signal/data signal according to a predetermined procedure, and inputs it to the multiplexing unit 26 in the next stage. The multiplexer 26 multiplexes the coded signal from the encoder 23, the SI (Service Information) signal 24a from the SI transmitter 24, the ECM signal 24b, and the DATA signal 24c from the VBR 25, and outputs the multiplexed data. , SCR 27 to the stream switching units 31 and 32 of the transmission system 30.

The stream switching units 31 and 32 are mutually redundant and seamlessly switch broadcast TS (Transport Stream) signals compressed by the MPEG (Moving Picture Experts Group) coding method, and each TS signal of the active system, the standby system, and the verification system. To generate. These TS signals are sent to the communication network 200 via the switching unit 33.

The control system 60 includes a device control scheduler 61, a real-time controller 62, a node (NODE) 63, and an MSM 64. The device control scheduler 61 executes processing relating to control of the broadcast schedule.

The real-time controller 62 executes processing related to real-time control. That is, the real-time controller 62 controls each broadcasting-related device based on the control scenario created based on the broadcasting program.

The node 63 is connected to, for example, a device (an analog VTR or the like) that does not have a connection interface to the intra-station network 50, and provides an interface function to the intra-station network 50. This allows old equipment and the like to be placed under the control of the broadcast master system 10. A plurality of nodes 63 may be provided as needed. The MSM 64 is responsible for processing related to other various controls.

The monitoring system 40 includes a plurality of monitoring control devices such as a SECLOGGER 41, an OA display terminal 42, a multi-monitor 43, a monitoring console 44, a monitoring instruction terminal 45, an alarm terminal 46, and a speaker 47.

The clock node 80 supplies the master time to each of the above broadcasting-related devices.

FIG. 3 is a schematic view showing an example of the control panel 90 having the monitoring system 40 built therein.

The control panel 90 includes a multi-monitor 43, a monitor console 44, a monitor instruction terminal 45, an alarm terminal 46, and a speaker 47.

In the broadcast master system 10, in each of the system processing system 20 (#1) and the system processing system 20 (#2), a program service for three channels in terrestrial digital broadcasting and two channels in BS broadcasting are provided. , A program service for one channel in one-segment broadcasting, a program service for a channel for sending to the Internet, and so on. Therefore, FIG. 3 shows an example in which ten multi-monitors 43 are provided so that each image provided by such a plurality of program services can be displayed. However, the number of surfaces of the multi-monitor 43 may be larger or smaller than this.

The alarm terminal 46 collects and displays all abnormal events automatically detected in the broadcast master system 10. Therefore, the operator can confirm whether or not there is an abnormality in the system processing system 20 (#1) by confirming the display of the alarm terminal 46. Further, the alarm terminal 46 can also detect and display a video difference between the system processing system 20 (#1) and the system processing system 20 (#2). Therefore, the operator can also grasp whether the system processing system 20 (#2) is normal. The alarm terminal 46 blinks and displays on the alarm terminal 46 when an abnormality is detected in the system processing system 20 (#1) or when an abnormality is detected in the system processing system 20 (#2). Alternatively, an alarm sound or a voice message may be generated from the speaker 47 to notify the operator of the abnormality.

The monitoring table 44 also includes a switching method setting switch 48 and a switching start switch 49. When an abnormality is detected in the system processing system 20 (#1), the switching method setting switch 48 does not send the multiplexed data from the system processing system 20 (#1) to the transmission system 30, but instead, the system processing system 20. This is a switch for setting the method for switching from 20 (#2) to the transmission system 30.

It should be noted that the system processing system 20 (#2) is assumed to be normal for the actual switching to be performed. Therefore, if there is an abnormality in the system processing system 20 (#2), as described above, an alarm sound or a voice message is generated from the speaker 47, or a blinking display is made on the alarm terminal 46, which causes an abnormality. The operator is notified, and the system processing system 20 (#1) is not switched to the system processing system 20 (#2).

In the present embodiment, there are three methods of switching from the system processing system 20 (#1) to the system processing system 20 (#2): an automatic switching method, a manual switching method, and a semi-automatic switching method. The monitoring console 44 includes three switches, that is, an automatic switching system setting switch 48a, a manual switching system setting switch 48b, and a semi-automatic switching system setting switch 48c in accordance with these three systems.

When the automatic switching method setting switch 48a is pressed, if an abnormality is detected in the system processing system 20 (#1), and if the system processing system 20 (#2) is normal, the monitoring system 40 will The system 20 (#1) is set to automatically start switching from the system processing system 20 (#2).

When the manual switching method setting switch 48b is pressed, if an abnormality is detected in the system processing system 20 (#1), and if the system processing system 20 (#2) is normal, the operator of the monitoring system 40 is When the switching start switch 49 is pressed, the switching is started as described above.

When the semi-automatic switching method setting switch 48c is pressed, if an abnormality is detected in the system processing system 20 (#1), and if the system processing system 20 (#2) is normal, a predetermined switching condition is satisfied. If so, the monitoring system 40 is set to automatically start the switching as described above, and if the predetermined switching condition is not satisfied, the monitoring system 40 is operated by the operator. When the switching start switch 49 is pressed, the switching is started as described above.

The switch start switch 49 is not physically pressed when the automatic switching method setting switch 48a is pressed, or even if it is pressed, it is ignored and the monitoring system 40 does not react.

In the example illustrated in FIG. 3, the switching method setting switch 48 and the switching start switch 49 are hardware switches as an example. However, these switches are not limited to hardware ones, and may be configured by software. For example, an icon indicating the switching method setting switch 48 and the switching start switch 49 is displayed on the touch panel that constitutes the alarm terminal 46, and by pressing this icon, the switching method setting switch 48 and the switching start switch 49 are displayed in the same manner. It may be configured to function.

Next, the switching condition will be described in detail with reference to FIG.

FIG. 4 is an example of a program service schedule diagram for explaining the switching conditions. The vertical axis represents the program services 1, 2, 3, 4,..., And the horizontal axis represents the schedule. As described above, the program service corresponds to a television channel, the schedule corresponds to time, and the right direction in the drawing is the time advancing direction.

As described above, the switching condition is a state in which the semi-automatic switching method is adopted (that is, a state in which the semi-automatic switching method setting switch 48c is pressed), and an abnormality is detected in the signal processing system 20 (#1). In this case, if the system processing system 20 (#2) is normal, the monitoring system so as to immediately and automatically start switching from the system processing system 20 (#1) to the system processing system 20 (#2). It is a condition for setting the system 40.

Such a switching condition is not limited, but when an abnormality is detected in the system processing system 20 (#1), for example, 1) it is not in the middle of a predetermined important program, 2) Not being in the middle of CM, 3) being in an emergency (for example, in the event of a disaster, occurrence of a serious event, etc.), etc. These can be combined arbitrarily.

If the switching condition is not satisfied, even if an abnormality is detected in the system processing system 20 (#1) and the system processing system 20 (#2) is normal, the monitoring system 40 does not The switching from #1) to the system processing system 20 (#2) is not automatically started immediately. Therefore, it is necessary for the operator to manually instruct the monitoring system 40 when to start the switching by manually pressing the switch start switch 49 at an appropriate timing in consideration of the broadcast status of each program service.

For example, as shown in FIG. 4, it is assumed that an abnormality (trouble) occurs during broadcasting of the program E in the program service 3, as indicated by a star at time t ₁ . At this time, although the CM is not being broadcast, it is an emergency, and if none of the programs C, E, and H broadcast at time t ₁ is an important program, the switching condition is satisfied. Therefore, the monitoring system 40 immediately and automatically starts switching from the system processing system 20 (#1) to the system processing system 20 (#2).

On the other hand, if the program C being broadcast is an important program even at an emergency at time t ₁ , the switching condition is not satisfied, so that the monitoring system 40 moves from the system processing system 20 (# 1) to the system processing system. The switching to 20(#2) cannot be automatically started immediately, and until the operator presses the switching start switch 49, the system processing system 20(#1) to the system processing system 20(#2). No switch to.

In this case, the switch should be made at time t ₂ when program C ends. Therefore, the alarm terminal 46 may recommend the timing to start the switching to the operator by displaying the time t ₂ when the program C ends based on the information from the broadcast information scheduler 16. Then, in accordance with this, the operator depresses the changeover start switch 49 at time t ₂ , and the monitoring system 40 starts switching from the system processing system 20 (#1) to the system processing system 20 (#2). To do. Alternatively, the monitoring system 40 may be set so that the switching is automatically started at the time t ₂ which is the timing recommended by the alarm terminal 46.

Further, it is assumed that an abnormality (trouble) occurs during the broadcasting of the program H in the program service 4 as indicated by a triangle at time t ₃ . At this time, even if it is not an emergency, the switching condition is not satisfied because the CMb is being televised in the program service 2 and is in the middle of the CM, and the monitoring system 40 receives the system processing system 20 (#1) from Switching to the system processing system 20 (#2) is not automatically started immediately, but the system processing system 20 (#1) to the system processing system 20 (#1) is pressed until the operator presses the switching start switch 49. No switch to #2) is made. This is to avoid interruption of CMb broadcasting. In this case, the switching should be done at time t ₄ when CMb ends. Therefore, the alarm terminal 46 may recommend the timing at which the switching should be started to the operator by displaying the time t ₄ when CMb ends based on the information from the broadcast information scheduler 16. Then, according to this, the operator depresses the changeover start switch 49 at time t ₄ , so that the monitoring system 40 starts switching from the system processing system 20 (# 1) to the system processing system 20 (# 2 ). To do. Alternatively, the monitoring system 40 may be set so that the switching is automatically started at the time t ₄ which is the timing recommended by the alarm terminal 46.

Note that FIG. 4 is shown using a rough display of CMs and programs, but in general, as shown in the enlarged view of FIG. There are a first CM CMf1, a second CM CMf2, and a third CM CMf3) in the band, and the program I includes not only the main volume I2 but also the notice I1 and the trailer I3. It is subdivided into. Therefore, the alarm terminal 46 can more flexibly recommend the timing of the switching start that minimizes the influence of the switching, in consideration of such fine breaks.

In addition, the semi-automatic switching method also has a function of automatically switching when a predetermined elapsed time has elapsed from the time when an abnormality is detected, even if the switching condition is not satisfied. In order to carry out such a function, for example, when an abnormality is detected, the alarm terminal 46 displays a counter 46' which counts down the time until automatic switching (for example, from 5 seconds). Then, when the count reaches zero, the monitoring system 40 is set so as to automatically start switching. It should be noted that the operator may press the manual switching method setting switch 48b to switch to the manual switching method before the counting ends, or press the switching start switch 49 before the counting ends to switch manually. It can also be started.

Next, the operation of the broadcast master system 10 according to this embodiment configured as described above will be described.

The broadcast master system 10 includes a 1-system system processing system 20 (#1) and a 2-system system processing system 20 (#2). The same data is generated in the system processing system 20(#1) and the system processing system 20(#2), but normally, the data multiplexed in the system processing system 20(#1) is the transmission system 30. Where the TS signal is generated and broadcast via the communication network 200 and the tower 300.

On the other hand, in the broadcast master system 10, an abnormal event is automatically detected and collected and displayed by the alarm terminal 46. Therefore, if an abnormality occurs in the system processing system 20 (#1), the information is automatically detected and displayed from the alarm terminal 46. In addition to this, an alarm sound or a voice message can be output from the speaker 47 or can be displayed blinking on the alarm terminal 46, so that the operator can surely recognize the occurrence of the abnormality.

When an abnormality occurs in the system processing system 20 (#1) in this way, it is necessary to switch to the system processing system 20 (#2) at an appropriate timing. For this switching, the broadcast master system 10 according to the present embodiment employs three systems, that is, an automatic switching system, a manual switching system, and a semi-automatic switching system. In accordance with this, the monitor 44 is provided with three switches, that is, an automatic switching system setting switch 48a, a manual switching system setting switch 48b, and a semi-automatic switching system setting switch 48c, and the operator In addition, by pressing any one of these three switches, the switching can be performed according to the timing determined by the desired method.

First, the flow of operation in the automatic switching system will be described with reference to the flowchart of FIG.

When adopting the automatic switching method, the operator presses the automatic switching method setting switch 48a (S1). In this state, when an abnormality occurs in the system processing system 20 (#1) (S2), the information is collected and displayed by the alarm terminal 46. Further, an alarm sound or a voice message may be output from the speaker 47, and a blinking display may be displayed on the alarm terminal 46 (S3). As a result, the operator can reliably recognize the abnormality in the system processing system 20 (#1).

At this time, if the system processing system 20 (#2) has no abnormality (S4: Yes), the monitoring system 40 automatically switches from the system processing system 20 (#1) to the system processing system 20 (#2). If the system processing system 20 (#2) is abnormal (S4: No), the system processing system 20 (#2) is not switched, and the operator takes appropriate action (S5). S6).

Next, the flow of operation in the manual switching method will be described using the flowchart in FIG.

When adopting the manual switching method, the operator presses the manual switching method setting switch 48b (S11). In this state, when an abnormality occurs in the system processing system 20 (#1) (S12), the information is collected and displayed by the alarm terminal 46. Further, an alarm sound or a voice message may be output from the speaker 47, or a blinking display may be displayed on the alarm terminal 46 (S13). As a result, the operator can reliably recognize the abnormality in the system processing system 20 (#1).

At this time, if there is no abnormality in the system processing system 20 (#2) (S14: Yes), the operator depresses the changeover start switch 49 at an appropriate timing so that the monitoring system 40 causes the system processing system 20 ( When the system processing system 20 (#2) is switched to the system processing system 20 (#2) (S15) and the system processing system 20 (#2) is abnormal (S14: No), the system processing system 20 (#2) is switched to. No switching is made, and an appropriate response is made by the operator (S16).

Next, the flow of operation in the semi-automatic switching method will be described using the flowchart in FIG.

When adopting the semi-automatic switching method, the operator presses the semi-automatic switching method setting switch 48c (S21). When an abnormality occurs in the system processing system 20 (#1) in this state (S22), the information is collected and displayed by the alarm terminal 46. Further, an alarm sound or a voice message may be output from the speaker 47, or a blinking display may be displayed on the alarm terminal 46 (S23). As a result, the operator can reliably recognize the abnormality in the system processing system 20 (#1).

At this time, if there is no abnormality in the system processing system 20 (#2) (S24: Yes) and the switching condition is satisfied (S25: Yes), the monitoring system 40 causes the system processing system 20 (#1) to operate. ) To the system processing system 20 (#2) is automatically performed (S26).

The switching condition is not limited, but when abnormality is detected in the system processing system 20 (#1), for example, 1) it is not in the middle of a predetermined important program, 2) in the middle of CM Not, 3) it is an emergency (for example, at the time of a disaster, a serious event occurs, etc.), 4) it has reached a predetermined elapsed time from the time when an abnormality was detected, and the like. These can be combined arbitrarily.

If 4) is independently set as the switching condition, the automatic switching from the system processing system 20 (#1) to the system processing system 20 (#2) is not immediately performed, and the alarm terminal 46 sends a predetermined signal. A counter 46' is displayed which counts down the elapsed time (for example, from 5 seconds). Then, when the count reaches zero, automatic switching is started. Before the counting is completed, the operator can press the manual switching method setting switch 48b to switch to the manual switching method.

On the other hand, in step S25, if the switching condition is not satisfied (S25: No), when the operator manually presses the switching start switch 49, the monitoring system 40 causes the system processing system 20 (#1) to switch the system. Switching to the processing system 20 (#2) will be performed. Therefore, when the operator manually presses the changeover start switch 49 at an appropriate timing, the monitoring system 40 switches from the system processing system 20 (#1) to the system processing system 20 (#2). (S27).

On the other hand, if there is an abnormality in the system processing system 20 (#2) in step S24 (S24: No), the system processing system 20 (#2) is not switched and an appropriate response is made by the operator (S28). ..

As described above, according to the broadcast master system 10 according to the present embodiment, in order to switch the system processing system 20 (#1) in which an abnormality has occurred to the system processing system 20 (#2), an automatic switching method and a manual switching method are used. In addition to the method, it is also possible to implement by a semi-automatic switching method.

The semi-automatic switching method has a function that combines both the automatic switching method and the manual switching method, and if the switching condition is satisfied when an abnormality of the system processing system 20 (#1) is detected. , The switching is done automatically and if not satisfied, the switching can be done manually.

In general, there are cases where the system processing system 20 (#1) is switched immediately and cases where it is not, depending on the situation when an abnormality is detected. For example, if 1) it is not in the middle of a predetermined important program, 2) it is not in the middle of CM, and 3) it is an emergency (for example, at the time of a disaster, when a serious event occurs, etc.), it is immediately switched. Corresponds to when it should. Therefore, by preliminarily setting these as the switching conditions, when an abnormality occurs in these cases, the switching is automatically performed, so that the system processing system 20 (# 1) to the system processing system 20 (# 2 ) Is surely switched to, and it becomes possible to avoid a broadcast accident.

On the other hand, when the switching condition is not satisfied, the switching is not immediately performed, and the operator manually starts switching from the system processing system 20 (#1) to the system processing system 20 (#2). However, as described above, the operator's skill and determination are required to determine when to perform the manual switching, so that the determination may be delayed and a broadcast accident may occur. In order to avoid this, the broadcast master system 10 according to the present embodiment causes the alarm terminal 46 to display the counter 46′ even when the switching condition is not satisfied when an abnormality is detected, and when the count becomes zero, The monitoring system 40 can be set so that the switching is automatically started. Alternatively, it is possible to recommend to the operator when to start switching. In this way, it is possible to prevent a broadcast accident from occurring due to a delay in the operator's judgment despite the detection of an abnormality.

As described above, according to the broadcast master system 10 according to the present embodiment, when an abnormality occurs in the system processing system 20(#1) and the switching condition is satisfied, the system processing system 20( When the switching to #2) is performed and the switching condition is not satisfied, the switching is automatically performed when the count ends, while leaving room for manual switching by the operator until the count ends. It is possible to avoid broadcast accidents without fail.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The embodiments and their modifications are included in the scope of the invention and the scope thereof, and are included in the invention described in the claims and the scope of equivalents thereof.

10 broadcast master system, 15 information system, 16 broadcast information scheduler, 17 database, 20 (#1) 1 system processing system, 20 (#2) 2 system processing system, 21 switcher, 23 encoder, 24 sending unit , 25 VBR, 26 multiplexing unit, 27 SCR, 30 transmission system, 31 stream switching unit, 32 stream switching unit, 33 switching unit, 40 monitoring system, 41 SECLOGGER, 42 OA display terminal, 43 multi monitor, 44 monitoring console , 45 monitoring instruction terminal, 46 alarm terminal, 46' counter, 47 speaker, 48 switching method setting switch, 48a automatic switching method setting switch, 48b manual switching method setting switch, 48c semi-automatic switching method setting switch, 49 switching start switch, 50 Internal network, 60 control system, 61 equipment control scheduler, 62 real time controller, 63 node, 64 MSM, 70 CM server, 71 line material, 72 studio, 73 generated signal, 80 clock node, 90 control panel, 100 broadcasting station, 200 Communication network, 300 radio tower, 400 homes.

Claims (30)

In the broadcast master system,
A first system processing system for generating first broadcast data transmitted from the broadcast master system;
A second system processing system for generating second broadcast data similar to the first broadcast data;
Detection means for detecting an abnormality that has occurred in the first system processing system;
When an abnormality is detected by the detection means, the second broadcast data is sent from the broadcast master system instead of the first broadcast data so that the first system processing system can send the second broadcast data. Setting means for setting the method for switching to the second system processing system,
Switching means for performing switching from the first system processing system to the second system processing system according to the method set by the setting means,
When an abnormality is detected by the detection unit, the setting unit sets the switching unit to automatically start the switching if a predetermined switching condition is satisfied, and the condition is satisfied. If not, a broadcast master system having a semi-automatic switching function that allows an operator to manually instruct the switching means when to start the switching. The broadcast master system according to claim 1, wherein the detecting means notifies the abnormality when the abnormality is detected. The setting means further includes an automatic switching function for setting the switching means so as to automatically start the switching regardless of the switching condition when an abnormality is detected by the detection means, and the detecting means. When an abnormality is detected by the above, a manual switching function is provided for allowing the operator to manually instruct the switching unit when to start the switching regardless of the switching conditions. Described broadcast master system. The detection means further determines whether or not there is an abnormality in the second system processing system,
4. The broadcast master system according to claim 1, wherein the switching unit does not perform the switching when the detecting unit determines that the second system processing system has an abnormality. .. The broadcast master system according to any one of claims 1 to 4, wherein the switching condition is not in the middle of CM. The broadcast master system according to any one of claims 1 to 4, wherein the switching condition is that it is not in the middle of a predetermined important program. The broadcast master system according to any one of claims 1 to 4, wherein the switching condition is an emergency. The broadcast master system according to any one of claims 1 to 4, wherein the switching condition is that a predetermined elapsed time has elapsed since the abnormality was detected by the detection means. The broadcast master system according to claim 1, further comprising a notification unit that notifies a recommended timing for starting the switching when the switching condition is not satisfied. The broadcast master system according to claim 9, wherein the recommended timing is at least one of an emergency, a commercial end, and a predetermined important program end. A switching method for switching a system processing system for generating broadcast data transmitted from a broadcast master system,
Generating first broadcast data transmitted from the broadcast master system in a first system processing system,
Second broadcast data similar to the first broadcast data is generated in a second system processing system,
Detecting an abnormality occurring in the first system processing system,
When the abnormality is detected, if the predetermined switching condition is satisfied, the second broadcast data is transmitted from the broadcast master system instead of the first broadcast data. Is set to a method for automatically starting switching from the first system processing system to the second system processing system, and if the predetermined switching condition is not satisfied, the first system processing system A system for starting the switching from the system processing system to the second system processing system according to an instruction from an operator,
Switching from the first system processing system to the second system processing system according to the set method
Switching method. The switching method according to claim 11, wherein when the abnormality is detected, the abnormality is notified. When the abnormality is detected, a method of automatically starting the switching is set regardless of the switching condition, or a method of starting the switching according to an instruction from the operator is set. The switching method described in 11 or 12. 14. The method according to claim 11, wherein it is determined whether or not there is an abnormality in the second system processing system, and when it is determined that the second system processing system has an abnormality, the switching is not performed. The switching method described in item 1. The switching method according to any one of claims 11 to 14, wherein the switching condition is not in the middle of CM. The switching method according to any one of claims 11 to 14, wherein the switching condition is that it is not in the middle of a predetermined important program. The switching method according to claim 11, wherein the switching condition is an emergency. The switching method according to any one of claims 11 to 14, wherein the switching condition is that a predetermined elapsed time has been reached since the abnormality was detected. The switching method according to any one of claims 11 to 18, wherein when the switching condition is not satisfied, a timing recommended for starting the switching is notified. 20. The switching method according to claim 19, wherein the recommended timing is at least one of an emergency time, a commercial end, and a predetermined important program end. A program applied to the broadcast master system,
A procedure for generating, in a first system processing system, first broadcast data transmitted from the broadcast master system,
A procedure for generating second broadcast data similar to the first broadcast data in a second system processing system,
A procedure for detecting an abnormality occurring in the first system processing system,
When the abnormality is detected, if the predetermined switching condition is satisfied, the second broadcast data is transmitted from the broadcast master system instead of the first broadcast data. Is set to a method for automatically starting switching from the first system processing system to the second system processing system, and if the predetermined switching condition is not satisfied, the first system processing system A procedure for setting a method for starting the switching from the system processing system to the second system processing system according to an instruction from an operator,
A procedure for switching from the first system processing system to the second system processing system according to the set method;
A program that causes a computer to execute. The program according to claim 21, further causing a computer to execute a procedure of notifying the abnormality when the abnormality is detected. When the abnormality is detected, regardless of the switching condition, a procedure for setting a method of automatically starting the switching, or when the abnormality is detected, regardless of the switching condition, the switching, 23. The program according to claim 21, further causing a computer to execute a procedure for setting a method of starting according to an instruction from the operator. A procedure for determining whether or not there is an abnormality in the second system processing system,
If it is determined that there is an abnormality in the second system processing system, the procedure of not performing the switching,
The program according to any one of claims 21 to 23, which further causes a computer to execute. The program according to any one of claims 21 to 24, wherein the switching condition is that it is not in the middle of CM. The program according to any one of claims 21 to 24, wherein the switching condition is that it is not in the middle of a predetermined important program. The program according to any one of claims 21 to 24, wherein the switching condition is an emergency. The program according to any one of claims 21 to 24, wherein the switching condition is that a predetermined elapsed time has been reached since the abnormality was detected. The program according to any one of claims 21 to 28, further causing a computer to execute a notification procedure of notifying a timing recommended for starting the switching when the switching condition is not satisfied. 30. The program according to claim 29, wherein the recommended timing is at least one of an emergency time, a commercial end, and a predetermined important program end.