JP2019097092A - Broadcast material relay system and broadcast material relay method - Google Patents

Abstract

To provide a highly available broadcast material relay system while preventing unintended broadcast material relaying.SOLUTION: A transmission source device 10 wirelessly superimposes a broadcast material with a device ID of an FPU receiver used to relay the broadcast material as relay receiver identification information and transmits the broadcast material and the device ID to a TMCC carrier. The FPU receiver 30 wirelessly transmits the broadcast material by an FPU transmitter connected to the FPU receiver 30 when the relay receiver identification information received together with the broadcast material matches the device ID of the own device.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a broadcast material relay system for relaying broadcast material wirelessly transmitted from a source device.

  In order to realize transmission of broadcast material between remote locations, FPU (Field Pickup Unit) receivers and transmitters are installed at one or more points between the broadcast material source and destination, and relay points are provided. There is an operation method to However, if the FPU is installed in a difficult mountain even by remote control, the FPU will operate independently.

  FIG. 1 is a diagram showing an outline of a relay operation using the FPU. In the figure, the transmission source transmitter (TX-1) is installed at the transmission source point of the broadcast material, and the transmission destination receiver (RX-2) is installed at the transmission destination point, and the FPU is installed at the point between them. A receiver (RX-1) and an FPU transmitter (TX-2) are installed. The FPU receiver (RX-1) and the FPU transmitter (TX-2) are connected by a cable of a standard such as Digital Video Broadcasting-Asynchronous Serial Interface (DVB-ASI) used for delivery of a signal to be relayed. In addition, a relay FPU controller for controlling the relay operation is disposed between the FPU receiver and the FPU transmitter.

  When the FPU receiver receives the signal transmitted from the source transmitter (TX-1), it passes the signal to the FPU transmitter and calculates the reception condition such as the reception electric field and BER (Bit Error Rate). Output to the relay FPU controller. The relay FPU control apparatus generates transmitter control information for controlling the relay operation based on the information indicating the reception state, and outputs the transmitter control information to the FPU transmitter. The FPU transmitter emits (sends) the signal received from the FPU receiver to the destination receiver (RX-2) based on the transmitter control information. The relay FPU controller may be built into the FPU receiver.

Japanese Patent Application Publication No. 2003-309536

  When relaying to a remote location without remote control / monitoring of the FPU, the FPU operates only on a preset channel. Here, referring to FIG. 2, consider the case where the same channel as the relay channel is used by the transmitter (TX-x in the drawing) which is completely different from the original relay operation. When the signal reaches the FPU receiver (RX-1) performing relay operation with a reception level that can be decoded even weakly, the relay operation is performed to the FPU transmitter (TX-2) installed at the same point The FPU transmitter will transmit broadcast material of completely different operation. As described above, since the FPU is installed to be operated independently, the relaying operation of the received signal is performed regardless of the original purpose or intention. For this reason, the FPU may affect the actual operation of the channel used for release.

In order to solve this problem, as described below, it is also conceivable to use the existing technology disclosed in Patent Document 1.
In this FPU according to ARIB STD-B33, as shown in FIG. 3, the transmission parameters from the source transmitter are TMCC (Transmission and Multiplexing Configuration and so that the FPU receiver performs demodulation operation automatically). Control) is transmitted using a carrier, and the identification information of the source transmitter is superimposed on the surplus portion of this TMCC carrier. When installing an FPU that performs relay operation using this technology, the FPU receiver (RX-1) stores the identification information of the source transmitter (TX-1) that is paired with this, and the transmission is performed The relay operation is performed only when the radio wave from the aircraft is received.

  According to the above method, even when radio waves of separate circuits using the same channel are received by the FPU, relaying is performed unless identification information representing TX-1 paired with RX-1 is superimposed on the TMCC carrier. The above problem can be avoided because it can be controlled not to perform the relay operation judging that it is unnecessary. However, if the transmitter transmitter (TX-1) is temporarily replaced with another transmitter (TX-N) for maintenance, a worker visits the installation location of the FPU receiver and identifies the new transmitter identification information. There is a concern that the availability of the system may be reduced because it is necessary to store the data in the FPU receiver.

  The present invention has been made in view of the above-described conventional circumstances, and provides a highly available broadcast material relay system while preventing unintended broadcast material relaying. The purpose is

  In order to achieve the above object, in the present invention, a broadcast material relay system is configured as follows. That is, in a broadcast material relay system for relaying a broadcast material wirelessly transmitted from a source device using a receiver and a transmitter installed at a relay point, the source device relays the broadcast material together with the broadcast material. Relay receiver identification information for identifying a receiver to be used for wirelessly transmitting the broadcast material when the relay receiver identification information received together with the broadcast material matches the identification information of the own device. The wireless transmission is performed by a transmitter.

  Thereby, when the broadcast material is received by the receiver having the same identification information as the relay receiver identification information transmitted together with the broadcast material, the broadcast material is transmitted from the transmitter at the relay point, It is possible to prevent the relay of unintended broadcast material from being performed. In addition, when replacing the source device, it is only necessary to set the relay receiver identification information in the source device after replacement, and there is no need for a worker to go to the relay point, so system availability is improved. It is possible to suppress the decrease.

  Here, as one configuration example, the source device wirelessly transmits the relay receiver identification information and its own identification information together with the broadcast material, and the receiver identifies the relay receiver received together with the broadcast material. When the information matches the identification information of the own device, the identification information of the source device may be wirelessly transmitted by the transmitter together with the broadcast material. In this way, it becomes possible for the relay destination to grasp from which source the broadcast material has been transmitted.

  Further, as one configuration example, when the relay receiver identification information received with the broadcast material matches the identification information of the own device, the receiver wirelessly transmits the identification information of the own device with the broadcast material by the transmitter. It may be configured to be transmitted. By this, it becomes possible to grasp at which relay destination the broadcast material has been relayed at the relay destination.

  In one configuration example, the source device presents a receiver that can be used for relaying a broadcast material, and the identification information of the receiver selected by the operator from among them is used as the relay receiver identification information to broadcast material It may be configured to transmit along with the By this means, it is possible to relay broadcast material using the receiver only by selecting the receiver at the source device.

  According to the present invention, it is possible to provide a highly available broadcast material relay system while preventing unintended broadcast material relaying.

It is a figure which shows the outline | summary of the relay operation which used FPU. It is a figure explaining the problem of the conventional broadcast material transmission system. It is a figure explaining the problem solution using the prior art. It is a figure explaining the problem solution based on 1st Example of this invention. It is a figure which shows the structural example of the transmission origin apparatus which concerns on 1st Example. It is a figure which shows the structural example of FPU receiver which concerns on 1st Example. It is a figure which shows the example of verification of the identification information by the FPU receiver which concerns on 1st Example. It is a figure explaining the problem solution based on 2nd Example of this invention. It is a figure which shows the structural example of the transmission origin apparatus which concerns on 2nd Example. It is a figure which shows the structural example of FPU receiver which concerns on 2nd Example. It is a figure which shows the example of a display by the transmission origin apparatus which concerns on 3rd Example. It is a figure which shows the structural example of the transmission origin apparatus which concerns on 3rd Example.

A broadcast material transmission system according to an embodiment of the present invention will be described with reference to the drawings.
The broadcast material transmission system according to the present embodiment relays a broadcast material wirelessly transmitted from a transmission source device to a transmission destination device using an FPU receiver and an FPU transmitter installed at a relay point. The schematic system configuration is the same as that described with reference to FIG. 1. In the following, the FPU receiver will be described as an example of a configuration in which the function of the relay FPU controller is incorporated. A relay FPU controller separate from the FPU receiver may be provided.

(First embodiment)
The signal transmitted from the transmission source device that is the transmission source of the broadcast material is composed of main data D and TMCC in frame units. As shown in FIG. 4, in the first embodiment, TMCC has a bit pattern indicating setting information of SYNC pattern and main data, and TMCC 1 having a surplus portion, and relay receiver identification information to be arranged in the surplus portion in TMCC 1 It comprises using TMCC2 which has a bit pattern shown. That is, relay receiver identification information for identifying the FPU receiver used for relaying the broadcast material is superimposed on the surplus portion of the TMCC. In addition, when the relaying of multiple times is required, the relay receiver identification information which respectively identifies the several FPU receiver used for relay is superimposed on the surplus part of TMCC.

  FIG. 5 shows a configuration example of the transmission source device 10 according to the first embodiment. The transmission source device 10 includes an encoder 11, a transmission path coding unit 12, a main data modulation unit 13, a TMCC generator 14, an operation unit 15, an identification information storage unit 16, a video processing unit 17, and an LCD (Liquid Crystal Display) unit 18. And an OFDM (Orthogonal Frequency Division Multiplexing) frame configuration unit 19, a transmission high frequency unit 20, and an antenna 21.

The video input (broadcasting material data) is compressed by the encoder 11 according to a predetermined encoding method such as MPEG-2 to become compressed data Data. This compressed data is the main data. Setting information such as modulation mode is auxiliary data.
The compressed data Data becomes data Ds by the transmission path coding unit 12. The transmission path coding unit 12 detects, for example, the code 47 h existing in a 204 W (word) cycle, replaces 47 h with B 8 h every eight cycles, and performs energy diffusion processing to invert the signal in a specific pattern, It performs interleaving to rearrange the data order, adds parity for correction, and produces data Ds. Since 1W is 8 bits, B8h is present every 13056 bits.

  The data Ds is input to the main data modulator 13. For example, it is mapped for each predetermined data to become main data D. Setting information (correctly a bit pattern indicating the setting information) which is a condition for generating the main data D is input to the mode setting terminal of the main data modulation unit 13 and the TMCC generation unit 14. The main data modulation unit 13 performs a modulation operation in accordance with the frame pulse from the TMCC generator 14.

  The OFDM frame construction unit 19 includes the main data D output from the main data modulation unit 13, the TMCC 1 generated from the TMCC generator 14, and the TMCC 2 indicating relay receiver identification information output from the identification information storage unit 16. , CP (Continual Pilot), AUX (Auxiliary), and NULL are input, and OFDM modulation is performed to output an OFDM signal consisting of a multicarrier of a band of about 17 MHz centered on 130 MHz.

  The OFDM signal output from the OFDM frame construction unit 19 is sent to the transmission high frequency unit 20, frequency-converted into a microwave signal, power amplified, and turned into an RF signal. Then, it is transmitted from the antenna 21 as a radio wave.

  The identification information storage unit 16 stores FPU information indicating the positions, channels, and the like of a plurality of FPU receivers at different relay points, and stores relay receiver identification information that identifies the FPU receiver used for relaying broadcast material. Do. The video processing unit 17 displays a screen based on the FPU information stored in the identification information storage unit 16 on the LCD unit 18, and presents the FPU receiver usable in the present system to the operator. The operator can select the FPU receiver to be used for relaying the broadcast material by operating the operation unit 15. The operation unit 15 is realized by, for example, a touch panel. Identification information of the selected FPU receiver is stored in the identification information storage unit 16 as relay receiver identification information, and is output to the OFDM frame configuration unit 19 at the time of transmission of the broadcast material.

  FIG. 6 shows a configuration example of the FPU receiver 30 according to the first embodiment. The FPU receiver 30 includes an antenna 31, a reception high frequency unit 32, a separation unit 33, a main data demodulation unit 34, a TMCC decoding unit 35, a transmission path decoding unit 36, a decoder 37, an identification information decoding unit 38, and a device information storage unit 39. The identification information comparison unit 40 and the transmitter control information generation unit 41 are provided. The FPU receiver 30 is deployed at the relay point together with the FPU transmitter that constitutes the FPU.

  The RF signal of the radio wave that has reached the antenna 31 is input to the reception high frequency unit 32. The reception high frequency unit 32 amplifies a weak signal and converts it into a 130 MHz intermediate frequency signal IF. This IF signal is input to the separation unit 33.

  The IF signal is separated and demodulated into main data D and TMCC by the separation unit 33. The main data D is input to the main data demodulation unit 34, and the TMCC is input to the TMCC decoding unit 35 and the identification signal decoding unit 38. Further, a frame pulse reproduced based on the information extracted from the input data by the TMCC decoding unit 35 is sent to the main data demodulation unit 34.

  The separation unit 33 and the main data demodulation unit 34 perform demodulation based on the frame pulse. Furthermore, various setting information extracted by the TMCC decoding unit 35 is input to the mode setting terminal of the main data demodulation unit 34, and is used to determine the conditions for generating the output data Ds. The output data Ds of the main data demodulator 34 is input to the transmission path decoder 36.

  The transmission path decoding unit 36 detects, for example, a B8h code existing in a 13056 bit cycle, and generates a reverse energy diffusion pattern from the pulse generated on the basis of this position. Next, reverse processing of the data Ds is performed and error correction is performed using this reverse energy diffusion pattern signal, and the compressed data Data is restored and sent to the decoder unit 37. The decoder unit 37 decompresses the decompressed compressed data Data and restores it to the broadcast material data before compression at the transmitting device. This broadcast material data is delivered to the FPU transmitter.

The identification signal decoding unit 38 decodes relay transmitter identification information from the TMCC. The decoded relay transmitter identification information is input to the identification information comparison unit 40. Further, the device information storage unit 39 stores identification information of the own machine, and is input to the identification information comparison unit 40.
The identification information comparison unit 40 compares the relay transmitter identification information (identification information X) with the identification information (identification information Y) of the own device, and determines whether or not both match. Then, when the two match, the release OK that permits release of the broadcast material is output, and when the two do not match, the release NG that prohibits the release of the broadcast material is output.

When the emission information is output from the identification information comparison unit 40, the transmitter control information generation unit 41 generates transmitter control information based on the information indicating the reception state of the signal, and outputs the transmitter control information to the FPU transmitter.
The FPU transmitter that has received the transmitter control information processes broadcast material data transferred from the FPU receiver according to the transmitter control information, and transmits (releases) it to the destination receiver.

  FIG. 7 shows an example of verification of identification information by the FPU receiver 30 according to the first embodiment. Here, as an example of identification information for identifying an FPU receiver, an 8-byte device ID indicated by an ASCII code is set in each FPU receiver 30. The transmission source device 10 superimposes the device ID of the FPU receiver used for relaying the broadcast material on the TMCC carrier and releases it. The FPU receiver 30 having received the radio wave compares the device ID superimposed on the TMCC carrier with the own device ID, and determines whether the currently received radio wave is directed to itself. In the example of FIG. 7, since the values of the 5th byte and the 7th byte do not match, the FPU receiver 30 determines that it is not a broadcast material addressed to itself, and relaying by the FPU transmitter is not performed.

  As described above, in the first embodiment, the source device 10 wirelessly transmits the broadcast material and the device ID of the FPU receiver used to relay the broadcast material as relay receiver identification information on the TMCC carrier. The FPU receiver 30 is configured to wirelessly transmit the broadcast material by the FPU transmitter when the relay receiver identification information received together with the broadcast material matches the device ID of the own device.

Second Embodiment
In the second embodiment, relay receiver identification information is superimposed on a NULL carrier in a TS (Transport Stream) signal for transmitting data such as video and audio. Since there is a NULL packet used for stuffing for rate adjustment in the TS signal, the relay receiver identification information is superimposed on the adaptation field (Adaptation Field) of this NULL packet (see FIG. 8). Here, a MAC address for identifying each device is used as relay receiver identification information. In addition, when a plurality of relays are required, a plurality of relay receiver identification information that respectively identify a plurality of FPU receivers used for relay is superimposed on the NULL packet of the TS signal.

  FIG. 9 shows a configuration example of the transmission source device 50 according to the second embodiment. The transmission source device 50 includes an encoder 51, a TS parallel serial conversion unit 52, a NULL packet separation unit 53, a cyclic counter regeneration unit 54, an identification information storage unit 55, a stream generation unit 56, a main data modulation unit 57, an OFDM frame configuration unit 58, the transmission high frequency part 59, and the antenna 60 are provided.

  The video input (broadcasting material data) is compressed by the encoder 51 according to a predetermined encoding method such as MPEG-2 to become compressed data Data. Here, it is assumed that a TS signal obtained by encoding a video input according to the MPEG-2 system is output as the compressed data Data. The TS signal output from the encoder 51 is converted from a parallel signal to a serial signal by the TS parallel-serial conversion unit 52, and then separated by the NULL packet separation unit 53 into a NULL packet and other packets.

  For the NULL packet separated by the NULL packet separation unit 53, the stream generation unit 56 writes the MAC address of the FPU receiver used for relaying as relay receiver identification information. The stream generation unit 56 rewrites the PID of the NULL packet from “1FFF” which is the original value to “1FFD” which is the value for identification signal transmission, and adds a continuity counter again. After that, the MAC address (12 bytes) of the receiver is written in the adaptation field of this NULL packet. The cyclic counter to be added back to the NULL packet is regenerated by the cyclic counter regenerating unit 56. Also, the MAC address of the FPU receiver to be written in the NULL packet is set in advance in the identification information storage unit 55.

  The NULL packet on which the MAC address of the FPU receiver is superimposed is then transmitted from the antenna 60 after being processed by the main data modulation unit 57, the OFDM frame configuration unit 58, and the transmission high frequency unit 59. On the other hand, the other packets (other than the NULL packet) separated by the NULL packet separation unit 53 are processed in the conventional manner. The main data modulation unit 57, the OFDM frame configuration unit 58, and the transmission high frequency unit 59 are the main data modulation unit 13 and the OFDM frame configuration unit 19 of the transmission source device 10 according to the first embodiment (except for the processing related to TMCC 2). Since the same operation as the transmission high frequency unit 20 and the antenna 21 is performed, the specific description is omitted.

  FIG. 10 shows a configuration example of the FPU receiver 70 according to the second embodiment. The FPU receiver 70 includes an antenna 71, a reception high frequency unit 72, a separation unit 73, a main data demodulation unit 74, a TMCC decoding unit 75, a transmission path decoding unit 76, a decoder 77, an identification information decoding unit 78, and a device information storage unit 79. , An identification information comparison unit 80, and a transmitter control information generation unit 81.

  The antenna 71, the reception high frequency unit 72, the separation unit 73, the main data demodulation unit 74, the TMCC decoding unit 75, the transmission path decoding unit 76, and the decoder 77 are the antennas 31 of the FPU receiver 30 according to the first embodiment. Operations similar to those of the reception high frequency unit 32, the separation unit 33, the main data demodulation unit 34, the TMCC decoding unit 35, the transmission path decoding unit 36, and the decoder 37 are performed, and thus detailed description will be omitted.

The identification signal decoding unit 78 extracts a packet in which "1FFD" is stored in the PID from the TS signal decoded by the transmission path decoding unit 76, and identifies the relay receiver stored in the adaptation field of the packet. Extract information. The extracted relay transmitter identification information is input to the identification information comparison unit 80. Further, the device information storage unit 79 stores the MAC address of the own device and is input to the identification information comparison unit 40.
The identification information comparison unit 80 compares the relay transmitter identification information (identification information X) with the MAC address (identification information Y) of the own device, and determines whether or not both match. Then, if the two match, the release OK for permitting release of the broadcast material is output, and if the two do not match, the release NG for prohibiting release of the broadcast material is output.

When the emission information is output from the identification information comparison unit 80, the transmitter control information generation unit 81 generates transmitter control information based on the information indicating the reception state of the signal, and outputs the transmitter control information to the FPU transmitter.
The FPU transmitter that has received the transmitter control information processes broadcast material data transferred from the FPU receiver according to the transmitter control information, and transmits (releases) it to the destination receiver.

  As described above, in the second embodiment, the source device 50 superimposes the MAC address of the FPU receiver used for relaying the broadcast material together with the broadcast material on the NULL packet of the TS signal as relay receiver identification information. The wireless transmission is performed, and the FPU receiver 70 is configured to wirelessly transmit the broadcast material by the FPU transmitter when the relay receiver identification information received together with the broadcast material matches the MAC address of the own device.

  In any of the first and second embodiments, the FPU receiver is connected only when the broadcast material is received by the FPU receiver having the same identification information as the relay receiver identification information transmitted together with the broadcast material The broadcast material is transmitted from the FPU transmitter. For this reason, when FPU receives a broadcast material, it can prevent that the relay which deviated from the original purpose or intent will be performed. Also, even when installing the substitute machine at the time of maintenance of the transmission source device, the operator can select the FPU receiver to be used for relaying as the substitute machine and maintain the trunk line without changing the setting on the FPU side. be able to. In addition, even when FPU is installed in the middle of a mountain where you can not set up an unmanned remote control circuit, there is no need for workers to go to the installation site to work, so it is possible not only to reduce its dispatching cost and period, but also It is possible to eliminate the risk of injury to workers by climbing to a place.

Here, the above configuration is expanded so that (1) from which source broadcast material is transmitted, or (2) which route relayed the broadcast material can be understood at the relay destination. You can also.
To realize the above (1), the source device wirelessly transmits the relay receiver identification information and its own identification information together with the broadcast material, and the FPU receiver receives the relay receiver identification information received with the broadcast material. If it matches with the identification information of the own device, the identification information of the source device may be wirelessly transmitted by the FPU transmitter together with the broadcast material.
Also, in order to realize the above (2), when the relay receiver identification information received by the FPU receiver together with the broadcast material matches the identification information of the own device, the FPU receiver together with the broadcast material concerned FPU The wireless transmission may be performed by the transmitter.

  In addition, in order to transmit the identification information of the transmission source device and the identification information of the FPU receiver together with the broadcast material, it may be superimposed on the TMCC carrier as in the first embodiment, or the TS signal as in the second embodiment. It may be superimposed on the NULL carrier of. Also, the relay receiver identification information and the identification information of the transmission source device and the identification information of the FPU receiver can be transmitted in different methods. That is, one may be transmitted superimposed on the TMCC carrier, and the other may be transmitted superimposed on the NULL carrier of the TS signal. However, in order to prevent complication of the device configuration, it is preferable to transmit each identification information in the same manner.

Third Embodiment
FIG. 11 is a view showing a display example by the transmission source device 90 according to the third embodiment. FIG. 12 is a view showing an example of the arrangement of a source device 90 according to the third embodiment.
The transmission source device 90 includes a control terminal 91, a transmission control unit 92, a transmission high frequency unit 93, an antenna 94, and a rotating rack 95.

The control terminal 91 presents to the operator a plurality of FPU receivers that can be used for relaying broadcast material, and transmits, as relay receiver identification information, transmission control unit identification information of the FPU receiver selected by the operator from among them. Output to 92. Depending on the installation situation of the FPU, there may be only one FPU receiver to be presented to the operator. In this case, the FPU receiver is selected by the operator. The control terminal 91 is a device corresponding to the operation unit 15, the identification information storage unit 16, the video processing unit 17, and the LCD unit 18 of the transmission source device 10 according to the first embodiment.
The transmission control unit 92 superimposes the relay receiver identification information input from the control terminal 91 on the broadcast material according to the method described in the first embodiment or the second embodiment.

  The broadcast material on which the relay receiver identification information is superimposed is sent to the transmission high frequency unit 93, frequency-converted into a microwave signal, power amplified, and turned into an RF signal. Then, it is transmitted as a radio wave from the antenna 94. At this time, in order to turn the antenna 94 in the direction of the relay point, the control terminal 91 calculates the rotation angle of the antenna based on the position information of the FPU receiver selected by the operator and the position information of the source device 90. And output the rotation angle information to the rotating frame 95. The rotating rack 95 turns in accordance with the rotation angle information input from the control terminal 91 and directs the antenna 94 in the direction of the relay point. Thereafter, the broadcast material is transmitted (released) from the antenna 94.

  The control terminal 91 may present a plurality of FPU receivers that can be used to relay broadcast material in a simple list format, but as shown in FIG. 11, the FPU receivers of each relay point are displayed on the map. It is preferable to map and display. This makes it possible to prevent the operator from mistakenly selecting a relay point other than the planned relay point.

  As described above, in the broadcast material relay system according to each embodiment, the source device wirelessly transmits, together with the broadcast material, the relay receiver identification information identifying the receiver used for relaying the broadcast material, and receives the FPU The device is configured to cause the FPU transmitter connected to the FPU receiver to wirelessly transmit the broadcast material when the relay receiver identification information received together with the broadcast material matches the identification information of the own device.

  Therefore, when relaying the broadcast material without the intervention of the operator, the relay operation according to the original purpose (the determined channel, the relationship of the determined transceiver, the transmission between the determined points) is reliably performed. be able to. In addition, since it is possible to prevent relaying that deviates from the original purpose, it is possible to improve the operation efficiency of the entire FPU circuit by using the band of the FPU held by the broadcast station according to the operation plan. Also, even if the source device of the broadcast material to be paired with the relay operation is replaced, the relay circuit can be opened simply by changing the setting of the source device, and the availability of the relay network is improved. . For example, in the case of the method using the above-mentioned prior art, it is necessary to change the setting of the FPU receiver, so one day (one person required) for preparation of personnel, tools and processes involved in the setting change Assuming that it takes two days (three people required) for work and operation confirmation, processes for at least four people for three days are assumed, but these can be reduced in this configuration. In addition, it is possible to eliminate the risk of injury to workers that might occur when climbing to the installation location of FPU.

In addition, as a structure of the system which concerns on this invention, an apparatus, etc., it is not necessarily restricted to what was shown above, A various structure may be used.
The present invention can also be provided as a method and method for executing the above-described processing, a program for realizing such a method and method, and a storage medium for storing the program.

  The present invention can be used for a broadcast material relay system that relays broadcast material wirelessly transmitted from a source device.

10: Source device: 11: Encoder 12: Transmission path coding unit 13: Main data modulation unit 14: TMCC generator 15: Operation unit 16: Identification information storage unit 17: Video processing unit 18 : LCD part, 19: OFDM frame configuration part, 20: transmission high frequency part, 21: antenna,
30: FPU receiver, 31: antenna, 32: reception high frequency unit, 33: separation unit, 34: main data demodulation unit, 35: TMCC decoding unit, 36: transmission path decoding unit, 37: decoder, 38: identification information Decoding unit 39: Device information storage unit 40: Identification information comparison unit 41: Transmitter control information generation unit
50: Transmission source device 51: Encoder 52: TS parallel serial conversion unit 53: NULL packet separation unit 54: cyclic counter regeneration unit 55: identification information storage unit 56: stream generation unit 57: main data Modulator, 58: OFDM frame component, 59: transmit radio frequency, 60: antenna,
70: FPU receiver, 71: antenna, 72: reception high frequency unit, 73: separation unit, 74: main data demodulation unit, 75 TM CC decoding unit, 76: transmission path decoding unit, 77: decoder, 78: identification information decoding unit 79: device information storage unit 80: identification information comparison unit 81: transmitter control information generation unit
90: source device, 91: control terminal, 92: transmission control unit, 93: transmission high frequency unit, 94: antenna, 95: rotating mount

Claims (5)

In a broadcast material relay system for relaying broadcast material wirelessly transmitted from a source device using a receiver and a transmitter installed at a relay point,
The source device wirelessly transmits, together with the broadcast material, relay receiver identification information identifying a receiver used for relaying the broadcast material.
The broadcast material relay system, wherein the receiver wirelessly transmits the broadcast material by the transmitter when the relay receiver identification information received together with the broadcast material matches the identification information of the own device. In the broadcast material relay system according to claim 1,
The source device wirelessly transmits the relay receiver identification information and its own identification information together with the broadcast material.
When the relay receiver identification information received together with the broadcast material matches the identification information of the own device, the receiver wirelessly transmits the identification information of the source device together with the broadcast material by the transmitter. To broadcast material relay system. In the broadcast material relay system according to claim 1 or 2,
When the relay receiver identification information received together with the broadcast material matches the identification information of the own device, the receiver wirelessly transmits the identification information of the own device together with the broadcast material by the transmitter. Broadcast material relay system. The broadcast material relay system according to any one of claims 1 to 3.
The source device presents a receiver that can be used for relaying the broadcast material, and transmits identification information of a receiver selected by the operator from the receiver as the relay receiver identification information together with the broadcast material. Broadcast material relay system. In a broadcast material relay method, a broadcast material relayed wirelessly from a transmission source device is relayed using a receiver and a transmitter connected to the receiver.
The source device wirelessly transmits, together with the broadcast material, relay receiver identification information identifying a receiver used for relaying the broadcast material;
3. A broadcast material relay method, wherein the receiver wirelessly transmits the broadcast material by the transmitter when the relay receiver identification information received together with the broadcast material matches the identification information of the own device.