JP6195343B2 - Communications system - Google Patents

Description

  The present invention relates to a communication system, and more particularly to a communication system combining a municipal digital broadcast communication system and a district broadcasting (regional promotion) system.

  In recent years, residents' associations in each district have installed a separate receiver in each household so that various information can be transmitted to the residents in that district, and broadcast audio transmitted wirelessly from the master station of the district broadcast. A district broadcasting (regional promotion) system has been constructed that receives the signal from a separate receiver and outputs it through a speaker.

  In addition, regarding a communication system in which a plurality of broadcast systems related to disaster prevention in municipalities have been integrated by an integrated unit, a communication system that efficiently performs simultaneous notification from the integrated unit to each broadcast system has also been proposed. (See Patent Document 1).

  Also, as a broadcast radio system in municipalities, there is a municipal digital broadcast communication system defined by ARIB STD-T86 (Non-patent Document 1) formulated by the Japan Radio Industry Association.

JP 2006-339712 A

Municipal digital broadcast communication system, ARIB STD-T86, The Japan Radio Industry Association

Conventionally, for example, in a system that transmits report data from a master station of a broadcast radio system to a plurality of district broadcast systems installed in each district, has the master station device of the plurality of district broadcast systems been able to receive the report data reliably? There was no way to know whether or not.
An object of the present invention is to make it possible to confirm whether or not the master station of each other system has correctly received the report data in a system that transmits the report data from the center device to the master station of a plurality of other systems. To do.

  The communication system of the present invention includes a first master station that transmits report data wirelessly, and a second master station of a plurality of other systems that receives report data transmitted from the first master station, A second master station is a communication system that transmits the received report data to a slave station, wherein the first master station transmits a reservation broadcast including report data and a broadcast time, and the second master station When the reserved broadcast is received, the content of the reserved broadcast is confirmed with a second master station of another system.

  The communication system of the present invention includes a first master station that transmits report data wirelessly, and a second master station of a plurality of other systems that receives report data transmitted from the first master station, A second master station is a communication system that transmits the received report data to a slave station, wherein the first master station transmits a reservation broadcast including report data and a broadcast time, and the second master station When the reserved broadcast is received, the content of the reserved broadcast is confirmed with the second master station of another system, and the second master station determines the other system's content based on the destination information included in the reserved broadcast. The content of the reserved broadcast is confirmed with the second master station.

  The communication system of the present invention includes a first master station that transmits report data wirelessly, and a second master station of a plurality of other systems that receives report data transmitted from the first master station, A second master station is a communication system that transmits the received report data to a slave station, wherein the first master station transmits a reservation broadcast including report data and a broadcast time, and the second master station When the reserved broadcast is received, the content of the reserved broadcast is confirmed with the second master station of the other system, a plurality of master stations of the other system confirm the audio data, and the master station of the other system receives the audio data. If not received normally, the master station is requested to retransmit the audio data.

  The communication system of the present invention includes a first master station that transmits report data wirelessly, and a second master station of a plurality of other systems that receives report data transmitted from the first master station, A second master station is a communication system that transmits the received report data to a slave station, wherein the first master station transmits a reservation broadcast including report data and a broadcast time, and the second master station When the reserved broadcast is received, the contents of the reserved broadcast are confirmed with the second master station of the other system, the plurality of master stations of the other system confirm the audio data, and the master stations of the other system communicate with each other. It is characterized by confirming data group information, reservation information, and data amount.

  The communication system of the present invention includes a first master station that transmits report data wirelessly, and a second master station of a plurality of other systems that receives report data transmitted from the first master station, A second master station is a communication system that transmits the received report data to a slave station, wherein the first master station transmits a reservation broadcast including report data and a broadcast time, and the second master station When the reserved broadcast is received, the content of the reserved broadcast is confirmed with the second master station of the other system, a plurality of master stations of the other system confirm the audio data, and the master station of the other system The confirmation priority order is stored as a table.

  According to the present invention, it is possible to confirm whether or not the master station of each other system has correctly received the notification data from the center device.

1 is a block diagram of a communication system according to an embodiment of the present invention. It is a block diagram for demonstrating the master station of the digital broadcast communication system which concerns on one Example of this invention, and the master station of a district broadcasting system. It is a table figure for demonstrating the report information memorize | stored in the master station of the digital broadcast communication system which concerns on one Example of this invention, and the master station of a district broadcasting system. It is a sequence diagram for demonstrating operation | movement of the communication system which is one Example of this invention. It is a sequence diagram for demonstrating the detailed operation | movement of the communication system which is one Example of this invention. It is a figure for demonstrating the signal format for communication for transmitting from the master station of the digital broadcast communication system which concerns on one Example of this invention to the master station of a district broadcasting system. It is a table figure for demonstrating the communication system which is another Example of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram of a communication system according to an embodiment of the present invention.
FIG. 1 shows a communication system in which a municipal digital broadcast communication system (hereinafter referred to as a broadcast system), which is a radio communication system related to disaster prevention in a municipality, and a district broadcast system (hereinafter referred to as a district broadcast system) are connected. It is a block diagram for demonstrating.

  In FIG. 1, the broadcast system is used, for example, for reporting disaster-related information from an administrative institution to residents at the time of a disaster. It is received by a plurality of outdoor slave stations 12 installed at the place and outputted as sound from a trumpet type speaker or the like. As a specific example, in a digital broadcast radio system for disaster prevention administration by a TDMA-TDD system which is a municipal digital disaster prevention radio communication system in a 60 MHz band (54 to 70 MHz), a center station apparatus 101 and an outdoor are used by using a broadcast radio line It has a function of making a report with the slave station 12 or the like by voice information or other code information.

  In the digital broadcast system according to an embodiment of the present invention, for example, when a disaster occurs, a disaster-related information is notified to the inhabitants from an administrative organization by a simultaneous report. Specifically, a terminal station device (not shown) installed outdoors, in a general home, a meeting place, a school, or the like in each region by the console 10 or the broadcast master station device 11 installed in the center station device 101. For example, information related to disasters, emergency command information, evacuation advisory information, etc. are transmitted as non-voice information such as voice information by telephone or text information, and the information is transmitted to the residents.

  In addition, as a communication system, for example, the terminal station apparatus may be applied to a fixed communication system in which the terminal station apparatus is fixedly installed, or the terminal station apparatus may be a mobile communication system such as a mobile phone. May be applied. In this embodiment, the slave station facilities 102-1 to 102-n are installed in the respective local places, and each individual receiver 26 is connected to the slave station facilities 102-1 to 102-n, for example. As the door-to-door receivers 26 of the district broadcasting systems 104-1 to 104-n, they are installed for each door (for each household) in a residence in the municipality or carried by each person (owner).

  In general, the direction of communication from the base station apparatus (in the present embodiment, the center station apparatus 101) to the slave station facilities 102-1 to 102-n is referred to as downlink, and the slave station facilities 102-1 to 102- The direction of communication from n etc. to the base station apparatus (in this embodiment, the center station apparatus 101) is referred to as uplink.

In FIG. 1, in the broadcast system, a center station apparatus 101 and a plurality of n slave station facilities 102-1 to 102-n are provided. Various numbers may be used as the number n of the slave station facilities 102-1 to 102-n, respectively.
FIG. 1 shows a wireless line C1 between the center station apparatus 101 and the slave station equipment 102-1, and a wireless line Cn between the center station apparatus 101 and the slave station equipment 102-n.

In the present embodiment, a case where communication is performed mainly between the center station apparatus 101 and the individual receiver 26 will be described. It is also possible to apply to the receiver 26.
The center station apparatus 101 includes an operation console 10 that is operated by the operator 1 to receive various commands and the like, and a broadcast master station 11 that has a control unit, a wireless unit, and an antenna and performs wireless communication. .

  The slave station facilities 102-1 to 102-n are provided with an outdoor slave station 12 that has a control unit, a radio unit, and an antenna and performs wireless communication, and a trumpet speaker that outputs sound to a person.

The district broadcast master station devices 21-1 to 21-n of the district broadcast master station equipment are operated by the operators 103-1 to 103-n and receive a variety of commands, etc., and a remote telephone by a person. A remote operation device 23 that is operated from a terminal 31 via a network 105 such as a public network and receives various commands, and a wireless device 24 that has a control unit, a wireless unit, and an antenna to perform wireless communication are provided. Yes.
The door-to-door receiver 26 includes a speaker that outputs sound to a person and a display unit that displays an image such as character information.

In one embodiment of the present invention, a system configuration in which the individual receivers 26 are connected to the district broadcasting master station devices 21-1 to 21-n via the relay devices 25 via the radio lines E1 to En. However, for example, the system configuration in which the district broadcasting master station devices 21-1 to 21-n and the individual receiver 26 are directly connected via the radio lines E1 to En without the relay device 25. May be used.
The slave station facilities 102-1 to 102-n are provided with and connected to other system interlocking units that control the district broadcast master station devices 21-1 to 21-n from the outside.
In addition, the district broadcasting master station devices 21-1 to 21-n are provided with other system interlocking units that receive control from the outside.
The operator 106 is a transmitter and an operator of the telephone terminal 31.

FIG. 2 is a block diagram for explaining a master station of the digital broadcast communication system and a master station of the district broadcasting system according to an embodiment of the present invention.
FIG. 2 shows an example of functional blocks of the broadcast master station device 11 and the district broadcast master station devices 21-1 to 21-n.
The broadcast master station device 11 according to an embodiment of the present invention includes a communication unit 111 that communicates with the district broadcast master station devices 21-1 to 21-n through the outdoor slave stations 12, and the district broadcast master stations in each district. Time information management table 112 for managing the transmission time of district broadcast audio collected from the devices 21-1 to 21-n (the time when silent reserved recording broadcasting is performed), the district broadcast master station devices 21-1 to 21-n in each district The area management table 113 for managing the service area of the district broadcast audio according to the transmission, adjusting the transmission time of the district broadcast audio (time for performing the silent recording recording broadcast) by the district broadcast master station devices 21-1 to 21-n in each district And a time adjustment unit 114.

  In addition, the district broadcasting master station devices 21-1 to 21-n according to an embodiment of the present invention are from the communication unit 221 and the operator (person) 103 that communicate with the broadcast master station device 11 through the outdoor slave station 12. An operation accepting unit 232 for accepting an operation, a time information managing unit 231 for managing the transmission time of the district broadcast audio (the time when the silent recording recording broadcast is performed), the district broadcast storage unit 233 for recording (storing) the inputted district broadcast audio, A district broadcast distribution unit 222 that distributes (transmits) district broadcast audio to the individual receiver 26, a wireless device 24, and the like.

  When the district broadcast master station devices 21-1 to 21-n in each district receive the district broadcast sound input by operating the operation unit 223 directly or remotely by the operator 103, The broadcast audio is stored in the district broadcast storage unit 233. Then, the district broadcast audio stored in the district broadcast storage unit 233 is delivered to the district broadcast when the district broadcast audio transmission time set in the time information management unit 231 (the time when the silent reservation recording broadcast is performed) arrives. The data is distributed (transmitted) by the unit 222 to the individual receiver 26 via the wireless device 24.

The operator 1 stores in the district broadcast storage unit 233 of the district broadcast master station devices 21-1 to 21-n from the broadcast master station device 11 of the center device 101 via the slave station facilities 102-1 to 102-n. Broadcast information to be transmitted.
The broadcast information to be transmitted includes voice data, identification information (destination information) of the district broadcast master station devices 21-1 to 21-n or the individual receivers 26 as transmission destinations, report time information, and the like.
The identification information of the district broadcast master station devices 21-1 to 21 -n or the individual receivers 26 that are the transmission destinations is stored in the area management table 113 of the broadcast master station device 11. In addition, as the report time information, the operator 1 directly inputs from the operation console 10 or reads and adds information stored in the time information management table 112 of the broadcast master station device 11.

The district broadcast master station devices 21-1 to 21 -n corresponding to the transmission destinations in the identification information use the broadcast information transmitted from the broadcast master station device 11 via the slave station facilities 102-1 to 102-n as voice. Separated into data and report time information.
The district broadcast master station devices 21-1 to 21-n store the separated audio data in the district broadcast storage unit 233 and manage the separated notification time information by the time information management unit 231.
Then, the time information management unit 231 reads the audio data corresponding to the notification time from the district broadcast storage unit 233 and receives it from the district broadcast distribution unit 222 via the wireless device 24 and the relay device 25 when the notification time is reached. Delivered to machine 26.

Next, a table according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 3 is a table for explaining report information stored in the master station of the digital broadcast communication system and the master station of the district broadcasting system according to an embodiment of the present invention.
FIG. 3A is a table of the broadcast system master station equipment.
FIG. 3A is a table diagram in which the time information management table 112 stores audio data including reservation information for the broadcast system master station equipment to transmit to the master station of the district broadcasting system.
The reservation information is information such as the time when the master station of the district broadcasting system broadcasts notification data.
The table diagram of FIG. And the destination ID of the master station of the district broadcasting system, the name of the group that broadcasts the same report data, the report data number, the report start date and time, the transmission date and time when the reservation information was transmitted, and the data amount of the report data. In addition, it is preferable that the broadcast system master station equipment holds the transmitted audio data itself in association with the table.
For example, no. 1 destination ID is 100, the group name is A, the report data number is P1, the report start date and time is 16:30 on April 2, 2013, and the transmission date and time when the reservation information is transmitted is 2013 3 It is 10:00 on March 27, and the data amount is 18 MB.

FIG. 6 is a diagram for explaining a communication signal format for transmitting from the master station of the digital broadcast communication system according to an embodiment of the present invention to the master station of the district broadcasting system.
In FIG. 6, the signal format for communication is, for example, a destination ID (call ID), report data number, report data, broadcast start date and time, reserved broadcast flag, and the like.
The reserved broadcast flag is used for identifying the broadcast data directly from the broadcast system or the reserved broadcast. For example, the reserved broadcast flag “0” is a direct broadcast, and “1” is a reserved broadcast.

FIG. 3B is a table of the master station of the district broadcasting system.
FIG. 3B is a table diagram in which the district broadcast master station device 21-1 stores the report data transmitted from the broadcast master station facility in the district broadcast storage unit 233. The district broadcasting master station device 21-1 is a master station belonging to the group A having the destination ID “100”.
The table diagram of FIG. And the master station ID (destination ID) of the master station of the district broadcasting system, the group name, the report data number, the report start date and time, the reception date and time when the reservation information was received, the data amount, and the like. The district broadcasting master station device holds the voice data (report data) itself received in association with this table.

  For example, in the table of FIG. 3B, the destination ID is 100, the group name is A, the report data number is P1, the report start date and time is April 2, 2013 16:30, and the reception date and time when the reservation information is received is The data amount is 18MB on March 27, 2013 at 10:00. If there is other report data, the table diagram holds that information.

  FIG. 3C is a table diagram in which the district broadcast master station device 21-4 stores the report data transmitted from the broadcast master station facility in the district broadcast storage unit 233. The district broadcasting master station device 21-4 is a master station belonging to the group B having the destination ID “110”.

FIG. 3D is a table of the confirmation priorities stored in the time information management table 112 by the master station of the broadcast broadcasting master station equipment and the master station of the district broadcasting system.
The table of FIG. 3D is a confirmation priority order table held by the district broadcasting master station device 21-1. Destination ID, group name, confirmation priority, confirmation destination master station information, next priority master station, and the like.
For example, No. in the table diagram of FIG. 1 is that the destination ID is 100, the group name is A, the confirmation priority is first place, the confirmation destination parent station information, and the immediately preceding priority parent station is the parent station 21-2: 042-XXX-XXX2 and the parent station 21-3: 042-XXX-XXX3, the next priority master station is the master station 21-2.

As described above, the priority order that is the inquiry order of the own station in the destination ID (group) and the inquiry number of the other station that is the confirmation destination are held in the confirmation priority order table. Here, the inquiry number is a number for connection via the network 105.
In addition, the confirmation priority table holds information on other master stations that make inquiries immediately before themselves as the immediately preceding priority master station. Therefore, when the district broadcast master station device 21-1 receives the reserved broadcast with the destination IDs 100 and 101 based on this table, the confirmation priority is “1”, so that the district broadcast master station device 21-1 immediately waits for an inquiry from another station. The received data is confirmed based on the confirmation destination master station information. Further, when the reservation broadcast with the destination IDs 102 and 130 is received, the confirmation priority is “2” or “3” instead of “1”, so the district broadcast master station device 21-1 is the previous priority master station. After receiving an inquiry from a certain district broadcasting master station device 21-3 or district broadcasting master station device 21-n (preferably, after receiving a confirmed communication to be described later), received data based on the confirmation destination master station information Confirm.

Further, the confirmation priority order table holds information on other master stations that make inquiries next to themselves (next priority). Therefore, the district broadcasting master station device 21-1 transmits a confirmed notification to the next priority master station when its own confirmation processing is completed.
3D may be stored in advance in the district broadcast storage unit 233 of the district broadcast master station devices 21-1 to 21-n for each group name, or the broadcast parent. You may transmit from a station.

Next, the basic operation of one embodiment of the present invention will be described with reference to FIG.
FIG. 4 shows the case where the operator 1 performs a selective call operation on the door-to-door receivers 26 of the district broadcasting (regional promotion) facilities 104-1 to 104-n by the reporting operation of the console 10 of the center station apparatus 101. The sequence diagram exchanged between each apparatus is shown.
The description of FIG. 4 is a case where the center station apparatus 101, the slave station equipment 102-1 and the district broadcasting (regional promotion) equipment 104-1 communicate.

  When the operator 1 makes a report, when the report type is selected and input (401) and the call activation (402) is performed on the console 10 of the center station apparatus 101, the district broadcasting (regional promotion) equipment 104 to be notified is provided. The wireless lines C1 to Cn leading to the remote control device 23 are used without newly opening a wireless line leading to the individual receiver 26 of -1 to 104-n.

  The center station apparatus 101 starts calling the outdoor slave station 12 (403). The outdoor slave station 12 performs storage (recording) activation for the broadcast console 22 (404). The broadcast console 22 instructs the remote control device 23 to start storing (recording) (starting own professional storage) with an automatic program (405).

Then, the information transmission by the voice of the operator 1 is transmitted as voice information or notification data (406). The notification information by voice transmission is temporarily stored (recorded) in the district broadcast storage unit 233 built in the remote operation device 23 without being output to the individual receiver 26 in real time (407).
When the transmission of the report data is completed, the handler 1 issues a transmission end instruction to the center station apparatus 101 (408). The center station apparatus 101 issues a transmission end instruction to the outdoor slave station 12 (409). The outdoor slave station 12 issues a storage (recording) end to the broadcast console 22 (410). The broadcast console 22 instructs the remote control device 23 to end storage (recording) (automatic storage end) with an automatic program (411).

Thereafter, when the notification time (412) is reached, the time information management unit 231 of the remote operation device 23 automatically activates the broadcasting console 22 (413). In response to the automatic call selection call operation, the broadcast console 22 sends an activation signal to the individual receiver 26 to be notified (414), and then transmits the stored notification data from the remote operation device 23 (415). ) And the speaker (speech) is output in real time by the door-to-door receiver 26 that has started receiving (416).
When the transmission of the report data ends, the remote operation device 23 issues a transmission end instruction to the broadcast console 22 (417). The broadcast console 22 outputs a transmission end to the door-to-door receiver 26 (418). The door-to-door receiver 26 ends the speaker output upon receiving the end signal.
Note that the wireless device 24 and the relay device 25 relay the transmission signal from the broadcasting table 24 to the individual receiver 26 via the radio wave line E1.

Next, the detailed operation of the communication system according to the embodiment of the present invention will be described with reference to FIG.
FIG. 5 is a sequence diagram for explaining the detailed operation of the communication system according to the embodiment of the present invention. The operator 1 transmits a reserved broadcast from the center station apparatus 101 to the group A having the destination ID 100. FIG. 6 is a diagram for explaining inquiries of received contents to other master stations by each district broadcast master station device 21 after (from step 411 to step 412 in FIG. 4).

The district broadcasting master station device 21-1 starts confirmation whether or not the report data has been normally received first because the priority of confirmation is first (FIG. 3D).
The district broadcasting master station device 21-1 instructs the district broadcasting master station device 21-2 having the same group name via the network 105 to send the notification data number P 1 data (501).
The district broadcast master station device 21-2 sends the report data number P1 data to the district broadcast master station device 21-1 via the network 105 (502).
The district broadcast master station device 21-1 instructs the district broadcast master station device 21-3 having the same group name to send the notification data number P 1 data (503).
The district broadcast master station device 21-3 sends the report data number P1 data to the district broadcast master station device 21-1 (504). Here, the data contents transmitted in steps 502 and 504 for confirmation are not limited in the present invention, but are, for example, a destination ID, a report data number, a report start date and time, and a data amount.

The district broadcasting master station device 21-1 confirms the received report data number P1 data by a known method of data comparison or sum check value comparison (505).
The district broadcasting master station device 21-1 determines whether or not the report data number P1 data is normally received (506). If it is normally received (YES), the district broadcasting master station device 21- having the second highest confirmation priority is confirmed. 2 is confirmed (507), and the processing of steps 508 to 511 is skipped thereafter. On the other hand, in the case of abnormal reception such as data loss (NO), the process proceeds to (508).

  In the determination (508) of the notification data number P1 data, the district broadcasting master station device 21-1 proceeds to the processing of (510) when only the own device has a data difference (YES), and the district broadcasting master station device 21- 2 or based on the report data sent from the district broadcasting master station device 21-3, rewrite the data portion missing or all the data (510). Then, the district broadcast master station device 21-1 informs the district broadcast master station device 21-2 with the next highest confirmation priority (second place) of confirmation (511).

On the other hand, the district broadcast master station device 21-1 cannot determine whether it is normal or missing from the notification data number P1 data sent from the local broadcast master station device 21-2 and the district broadcast master station device 21-3. In the case (NO in step 508), the center station apparatus 101 is requested to retransmit the report data number P1 data via the slave station equipment 102-1 or the network 105 (509).
Then, the center station apparatus 101 retransmits the report data of the report data number P1 to the district broadcast master station apparatus 21-1 based on the request for retransmission (not shown), and the district broadcast master station apparatus 21-2 The data is saved (rewritten) (510). Thereafter, the district broadcasting master station device 21-1 notifies the confirmation (step 511) to the district broadcasting master station device 21-2 with the second highest priority for confirmation (second).

The district broadcast master station device 21-2 that has received confirmation of the notification data from the district broadcast master station device 21-1 uses the A group with the same group name as in the processing of the district broadcast master station device 21-1. An instruction is made to send the report data number P1 data to a certain district broadcasting master station device 21-1 (512).
The district broadcast master station device 21-1 sends the report data number P1 data to the district broadcast master station device 21-2 (513).
The district broadcast master station device 21-2 instructs the A2 district broadcast master station device 21-3 having the same group name A to send the notification data number P1 data (514).
The district broadcast master station device 21-3 sends the report data number P1 data to the district broadcast master station device 21-2 (515).

The district broadcasting master station device 21-2 confirms the received report data number P1 data by a data comparison method or a sum check value method comparison, which is a well-known technique (516).
The district broadcasting master station device 21-2 determines whether or not the notification data number P1 data is normally received (517). If it is normally received (YES), the district broadcasting master station device 21- having the third highest confirmation priority is confirmed. 3 is confirmed (518), and the subsequent steps 519 to 522 are skipped. On the other hand, in the case of abnormal reception such as data loss (NO in step 517), the district broadcast master station device 21-2 proceeds to the process of (519).

  In the determination of report data number P1 data (519), the district broadcasting master station device 21-2 proceeds to the processing of (521) when the data of the own device is different (YES in step 519), and the district broadcasting master station Based on the report data sent from the device 21-1 or the district broadcasting master station device 21-3, the data part or all the data lost to itself is rewritten (521). Then, the district broadcast master station device 21-2 informs the district broadcast master station device 21-3 that has the next highest confirmation priority (third place) of confirmation (522).

On the other hand, the district broadcast master station device 21-2 cannot determine normality or omission based on the notification data number P1 data sent from the own device, the district broadcast master station device 21-1, and the district broadcast master station device 21-3. In this case (NO in step 519), the center station apparatus 101 is requested to retransmit the report data number P1 data via the slave station equipment 102-2 or the network 105 (520).
Then, the center station apparatus 101 retransmits the report data of the report data number P1 to the district broadcast master station device 21-2 based on the request for retransmission (not shown), and the district broadcast master station apparatus 21-2 The data is saved (rewritten) (521). Thereafter, the district broadcasting master station device 21-2 notifies the confirmation to the district broadcasting master station device 21-3 having the next highest confirmation priority (third place) (522).

  The district broadcasting master station device 21-3 with the third confirmation priority rank performs the same processing as the processing of the district broadcasting master station device 21-1 or the district broadcasting master station device 21-2.

In the embodiment of the present invention shown in FIG. 5, the sending of the report data is instructed to all the district broadcast master station devices of the A group having the same group name, but the number of district broadcast parents who can determine the report data of the own device. The station device may be instructed to send report data.
In this way, each district broadcasting master station device 21 confirms that the reception data (report data) of the reservation broadcast is mutually confirmed, so that the report data cannot be received correctly for some reason such as a line abnormality or device abnormality. Can be confirmed. For example, this effect becomes very noticeable when reporting disaster prevention information or important regional information.

In addition, each district broadcasting master station device 21 can provide notification data such as the amount of data does not match with other district broadcasting master station devices 21 even though the destination ID, report number, and part or all of the report start date and time match. If it is found that the message is not correctly received, the report data is automatically rewritten to the correct data, so that the scheduled broadcast can be performed accurately and reliably without the user's confirmation or rewriting operation.
In addition, each district broadcast master station device 21 performs a confirmation process on received data based on a destination ID (destination information) included in the reserved broadcast, so that confirmation can be surely performed.
Furthermore, since each district broadcasting master station device 21 performs the confirmation process of the received data based on the preset confirmation priority order, there is no conflict between confirmation processing inquiries between the district broadcasting master station devices 21. Confirmation can be made.

Next, another embodiment of the present invention will be described with reference to FIG.
FIG. 7 is a table for explaining a communication system according to another embodiment of the present invention.
FIG. 7A is a confirmation time zone table diagram in which the time zone for carrying out confirmation of the notification data is predetermined for each district broadcasting master station device instead of the confirmation priority order explained in FIG. 3D. is there. This confirmation time zone table is held by all the regional broadcasting master station devices 21. And each district broadcasting master station apparatus 21 uses this confirmation time zone table figure, and there exists an effect which does not produce the collision of the confirmation process of a district broadcasting master station apparatus similarly to embodiment mentioned above.

In addition, each district broadcasting master station apparatus 21 may hold | maintain only own confirmation time naturally.
FIG. 7B is a table that holds the confirmation destination master station information corresponding to the destination ID of the reserved broadcast, and holds the destination ID, the group name, and the confirmation destination master station information. Here, FIG. 7B shows a table held by the district broadcasting master station device 21-1 as an example.
Then, if the district broadcast master station device 21-1 receives the reserved broadcast at 01:00 based on the confirmation time zone table of FIG. 7A, the confirmation destination information table of FIG. The confirmation data of the reserved broadcast is confirmed to the confirmation destination master station corresponding to the destination ID of the reserved broadcast received based on.
In addition, confirmation of report data and interpolation at the time of omission are implement | achieved by performing the process similar to the above-mentioned FIG.

  According to the present invention, it is possible to confirm whether or not the master station of each other system has correctly received the notification data from the center device.

Although the present invention has been described in detail above, it is needless to say that the present invention is not limited to the communication system described here and can be widely applied to communication systems other than those described above.
For example, in the above-described embodiment, a combined system of a broadcast wireless system and a district broadcast wireless system is taken as an example, but it goes without saying that the present invention is not limited to the combined system of these systems.

  10: console, 11: broadcast master station device, 12: outdoor slave station, 21-1 to 21-n: district broadcast master station device, 22: broadcast console, 23: remote control device, 24: wireless device , 25: Relay device, 26: District broadcasting system door-to-door receiver, 31: Telephone terminal, 101: Center device, 102-1 to 102-n: Broadcasting slave station equipment, 1, 103-1 to 103-n, 106: operator, 104-1 to 104-n: district broadcasting (regional promotion) equipment, 105: network, C1 to Cn, E1 to En: radio wave line.

Claims (5)

Comprising: a first master station for transmitting notification data by wireless, and a second master station that will receive the notification data transmitted from the first master station and the third master station, the second parent In the communication system in which the station and the third master station transmit the received report data to the slave station,
The first master station transmits a reserved broadcast including report data and broadcast time,
When the second master station receives the reserved broadcast from the first master station, the second master station receives data of the reserved broadcast held by the third master station from the third master station, and A communication system comprising: comparing with data of the reserved broadcast received from one master station and confirming whether or not the reserved broadcast is normally received from the first master station . The communication system according to claim 1,
The communication system, wherein the second master station receives data of the reserved broadcast from the third master station based on destination information included in the reserved broadcast. The communication system according to claim 1,
When said second parent station is not normally received the reservation broadcast, communication system, characterized in that a request for retransmission of the reserved broadcast to said first parent station. The communication system according to claim 1,
The second master station, group information of the data of the previous SL reservation broadcasting, reservation information, characterized in that to check whether it has received correctly the reservation broadcast from the based on the data amount the first master station A communication system. The communication system according to claim 1,
The communication system characterized in that the second master station holds a confirmation priority order of the reserved broadcast as a table.

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