JP7210098B2 - Relay broadcasting equipment - Google Patents

Description

The present invention relates to a relay broadcasting apparatus used in a broadcast wave relay system for television or the like.

Conventionally, for example, a broadcast wave relay system for digital terrestrial television includes a plurality of devices including a receiver, a transmitter, a power source, an amplifier, a frequency converter, and a compensator. It is housed in one rack as one unit to constitute a relay broadcasting device. Each of the plurality of devices can be exchanged unit by unit for maintenance work or improvement of broadcasting service.

In addition, the relay broadcasting equipment must be put out of operation in the event of an accident or failure, or when inspection or adjustment is to be performed. When an accident or failure occurs in the currently used relay broadcasting device, or when inspection or adjustment is performed, the relay broadcasting device is switched to a backup relay broadcasting device (Patent Document 1).

JP 2009-105910 A

By the way, in such a relay broadcasting device, if a relay broadcasting device in operation fails, it is possible to switch to a backup relay broadcasting device automatically or by remote control.

However, it is difficult to investigate and analyze the cause of how the relay broadcasting apparatus in operation failed under what circumstances.

The two-unit type relay broadcasting device is equipped with a control device for switching and controlling the two relay broadcasting devices, and the control device aggregates the internal information of each device and the alarm log/event log. It is also conceivable to record the

However, since the plurality of devices constituting the relay broadcasting device differs depending on each broadcasting station and various operation modes are assumed, the internal information of each device and the alarm log/event log are aggregated into one control device. However, it is practically difficult to record in , due to problems such as recording capacity.

In addition, some broadcasting stations adopted a relay broadcasting apparatus of the one-unit system, and some did not have a control device unlike the two-unit system.

Therefore, when a relay broadcasting device breaks down, there is a problem that it is difficult to identify the faulty device and find out the cause of the fault because the state and situation of each device at the time of the fault cannot be known.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a relay broadcasting apparatus which, when the relay broadcasting apparatus fails, can quickly and accurately identify the faulty equipment and find the cause of the failure.

In order to achieve the above object, the invention according to claim 1 is a relay broadcasting apparatus comprising a plurality of devices including a power supply device and an amplifier device, wherein each device records information indicating its own state. a recording unit for recording the state of itself in the recording unit at a predetermined timing; one of the devices is set as a host device; A client device is communicatively connected, and by accessing the host device, the information recorded in the recording units of the host device and each client device can be retrieved.

According to the present invention, each device constituting the relay broadcasting device can record information indicating its own state in the recording unit, and when the relay broadcasting device fails, the device can indicate its own state at that time. information is output.

The invention according to claim 2 is characterized in that, in the relay broadcasting apparatus according to claim 1, the host device has a time generation circuit, and time synchronization control is performed for each client device.

The invention according to claim 3 is the relay broadcasting apparatus according to claim 1 or 2, wherein each of the devices records the information before and after the state change in the recording unit when a predetermined state change occurs. characterized by

According to the first aspect of the present invention, each of the devices provided in the relay broadcasting apparatus records information indicating its own state in the recording unit at a predetermined timing. One of them is set as a host device, the other device is set as a client device, and the host device and each of the client devices are communicatively connected. , the information recorded in the recording unit of each client device can be read out, the state of each device can be grasped when the relay broadcasting device breaks down, and the faulty device can be specified and the cause can be ascertained.

According to the second aspect of the invention, the host device is provided with a time generation circuit, and time synchronization control is performed for each client device. There is no need for time consistency (time adjustment) between the devices, and the risk of forgetting time adjustment can be avoided.

According to the third aspect of the invention, when a predetermined state change occurs, each device records the information before and after the state change in the recording unit. can reduce the recording capacity. In addition, since only the information that causes the state change can be immediately viewed, it is possible to quickly identify the faulty device and grasp the cause.

The first embodiment of the present invention is shown together with FIGS. 2 and 3, and this figure is a block diagram schematically showing the configuration of a relay broadcasting apparatus system. FIG. 4 is a timing chart for recording an event log in each device; It is a timing chart figure which records a periodical log in each apparatus. FIG. 4 is a block diagram schematically showing the configuration of a relay broadcasting apparatus according to Embodiment 2 of the present invention; FIG. 10 is a block diagram schematically showing the configuration of a relay broadcasting apparatus according to Embodiment 3 of the present invention;

Hereinafter, the present invention will be described based on each illustrated embodiment.

(Embodiment 1)
1 to 3 show a relay broadcasting device system 1 according to Embodiment 1. FIG. 1 is a block diagram schematically showing the configuration of the relay broadcasting device system. FIG. 2 is a timing chart for recording event logs in each device. FIG. 3 is a timing chart for recording periodic logs in each device.

The first embodiment is a so-called two-device system, and is a relay broadcasting device system 1 composed of two relay broadcasting devices 10A and 10B.

In such a relay broadcasting apparatus system 1, two transceivers sharing an input/output system composed of an antenna etc. are operated in parallel, and the antenna is connected to one transceiver via a selection switch, and the other is connected to the other transceiver. When it becomes necessary to activate one transmitter/receiver, the selection switch is switched to connect the antenna to the other transmitter/receiver (not shown).

The basic function of the relay broadcasting apparatus 10 according to the present invention (the function as a relay broadcasting station of receiving a radio signal transmitted from a higher station, performing predetermined processing, and then transmitting the signal to a lower station) is conventional. Since it is the same as , its explanation is omitted.

The two relay broadcasting devices 10A and 10B are connected via the switching control device 20, and switching between the relay broadcasting devices 10A and 10B is performed as described above.

Since the two relay broadcasting devices 10A and 10B have the same configuration, that is, they are configured with the same equipment, one relay broadcasting device 10A will be described, and the other relay broadcasting device 10B will be described below. The description is omitted by adding "B" to the same numerals.

The relay broadcasting device 10A includes a power source device 30A, an amplifier device 31A, a receiver device 32A, a transmitter device 33A, a frequency converter device 34A, a compensator device 35A, and the like. is communicatively connected to

Each device 30A to 35A is provided with a separate detection means 40 and recording section 41, respectively.

The separate detection means 40 of each device 30A to 35A differs depending on the device 30A to 35A provided. Information indicating the state of the device 30A is detected. The information indicating the state of each device 30A to 35A includes, for example, temperature, voltage, frequency, current, acceleration, etc., and the device 30A to 35A is "abnormal" or "possible failure state". It is information that is judged to be

Information detected by the detection means 40, 40, . . . is recorded in the recording units 41, 41, .

Of the devices 30A to 35A of the relay broadcasting apparatus 10A, the amplifier device 31A is set as a host device, and the other devices 30A and 32A to 35A are set as client devices. That is, by communicably connecting the amplification device 31Ah as the host device and the other devices 30Ac, 32Ac to 35Ac as the client devices, the respective recording units 41, 41, . . . can be collected in an amplifying device 31Ah, which is a host device, in a timely manner.

The amplifying device 31Ah, which is a host device, is provided with a time generation circuit 42, and centrally manages time consistency with other devices 30Ac, 32Ac to 35Ac, which are client devices.

As a result, for example, when one device 32Ac is replaced, it is not necessary to match the time between the device 32Ac and the other devices 30Ac, 31Ah, 33Ac to 35Ac. There is no need to perform the work of adjusting the time when replacing the equipment, which has been apt to be forgotten in the past, and the risk of replacing the equipment can be avoided.

Also, if the time is managed for each of the devices 30A-35A, there is a possibility that a discrepancy may occur due to long-term operation. By connecting them, it is possible to prevent a time lag between the devices 30Ac, 31Ah, 32Ac to 35Ac.

This also eliminates the need to provide the time generating circuit 42 for each of the devices 30A-35A.

If a time generation circuit is provided for each of the devices 30A to 35A, even if the time generation circuit 42 of the host device 31A fails, the time of each device 30A to 35A can be counted from the time set up until then. Therefore, a time lag can be prevented.

Logs of information recorded in the recording units 41, 41, . . .

FIG. 2 is a timing chart for recording event logs in each of the devices 30A-35A, and FIG. 3 is a timing chart for recording periodic logs in each of the devices 30A-35A.

FIG. 2 is a timing chart for recording an event log. The event log is recorded when a state change of each of the devices 30A to 35A is detected as a trigger. For example, when the temperature of the device 30Ac reaches a predetermined temperature or higher, the thermometer (detection means) 40 detects that the temperature has exceeded the set value. frequency, current, acceleration, etc.) are recorded.

In the event log, the information to be detected is always held in a buffer such as a CPU (Central Processing Unit) for a predetermined period of time, and after the predetermined period of time has elapsed, the information is sequentially overwritten so that the latest information for the predetermined period of time is always retained. , and the timing (predetermined timing) at which the set value to be detected is detected as a trigger, and each piece of information for a predetermined time before and after that time is recorded in the recording unit 41 .

For example, when a failure occurs, each information of each device 30A to 35A for a predetermined time before and after the occurrence of the failure (for example, one minute before and after: two minutes in total) is recorded in each recording unit 41, 41, . . Then, later, each information of each device 30A to 35A at the above-mentioned predetermined time can be retrieved, and the faulty device can be identified and the cause of the fault can be investigated and analyzed.

When a failure occurs, the device notifies the detection means 40 that detected the occurrence of the failure to the host device 31Ah. 35Ac is notified of an event log recording instruction. As a result, event logs are recorded in each of the devices 30A to 35A, and are recorded as event logs in the separate recording units 41, 41, .

In this way, since the event log is information for a predetermined period of time, the amount of information is small, and the recording capacity of the recording unit 41 can be reduced.

In addition, the constant log (recording all information for the entire operating time of the device) contains a huge amount of information, so it takes time to search for the necessary information. search can be realized.

FIG. 3 is a timing chart for recording a periodical log for each piece of information. In this periodical log, predetermined information of the device is recorded at predetermined time intervals, for example, every one minute. Such a periodic log records temperatures with relatively small variations, and may be used in the future as information on how the device has been operated.

In addition to this, alarm detection may be set in each of the devices 30A to 35A, and a log may be taken when an alarm occurs.

Thus, in the relay broadcasting device system 1 as described above, when an accident or a failure occurs, only by accessing the amplifier device 31Ah as a host device from the outside, the amplifier device 31Ah can be restored to its own device 31A. A predetermined log can be extracted from the recording units 41, 41, . Each information of each device before and after can be retrieved.

For access to the host device from the outside, for example, a remote controller (remote control device) is connected to the host device in advance, and the log is recorded at a location other than the relay station (remote location) by constantly or frequently monitoring from the outside. etc.) to identify the relevant device of the accident or failure, investigate the cause of the accident or failure, analyze it, and the like.

(Embodiment 2)
In the relay broadcasting device system 2 according to the second embodiment, the switching control device 20h of the relay broadcasting device system according to the first embodiment is set as the host device, and the other devices are set as client devices. It is.

In this case, the switching control device 20h is provided with a time generation circuit 42, and the devices 30A to 35A and 30B to 35B of the relay broadcasting devices 10A and 10B are communicatively connected to the switching control device 20h. It has the same effect as the relay broadcasting device system 1 according to the first embodiment, and in addition, in this relay broadcasting device system 2, only one time generation circuit 42 can be used, and furthermore, from the outside can be accessed with this switching control device 20h, and the construction of the system can be simplified.

(Embodiment 3)
The relay broadcasting apparatus system 3 according to the third embodiment is a one-unit system, whereas the relay broadcasting apparatus system 1 according to the first embodiment is a so-called two-unit system.

In the case of this relay broadcasting device system 3, one relay broadcasting device 10B (or 10A) of the first embodiment is omitted. Therefore, the switching control device 20 is unnecessary, and the construction of the system can be further simplified.

As described above, in the relay broadcasting apparatus 10, each of the devices 30 to 35 is provided with a recording unit for recording information indicating its own state, and records its own state in the recording unit at a predetermined timing. One of the devices is set as the host device 31h, the other devices 30c, 32c to 35c are set as client devices, and the host device 31h and each of the client devices are communicatively connected. It is possible to quickly and accurately grasp the operational status of the relay broadcasting device 10 by simply accessing the , and to prevent failures from occurring. Therefore, it is possible to further reduce the risk of suspension of broadcasting services.

Although the embodiments of the present invention have been described above, the specific configuration is not limited to the above-described embodiments. Included in the invention.

1 relay broadcasting device system 10A relay broadcasting device 10B relay broadcasting device 20 switching control devices 30A to 35A devices 30B to 35B device 31Ah host device 30Ac client devices 32Ac to 35Ac client device 40 detecting means 41 recording unit 42 time generating circuit 2 relay broadcasting device System 20h switching control device (host device)
3 Relay broadcasting device system 31h Host device 30c Client devices 32c to 35c Client devices

Claims (3)

A relay broadcasting device equipped with a plurality of devices including a power supply device and an amplifier device,
Each device has a recording unit for recording information indicating its own state, and records its own state in the recording unit at a predetermined timing,
one of the devices is set as a host device, the other device is set as a client device, and the host device and each client device are communicably connected;
A relay broadcasting apparatus, wherein information recorded in the recording units of the host device and each client device can be extracted by accessing the host device. 2. A relay broadcasting apparatus according to claim 1, wherein said host device comprises a time generating circuit and controls time for each client device. 3. The relay broadcasting apparatus according to claim 1, wherein each device records the information before and after the state change in a recording unit when a predetermined state change occurs.

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