JP2020155854A - Master station, method, and program - Google Patents

Abstract

To provide a master station, a method, and a program that can instruct a slave station to broadcast for attention evocation to a disaster area affected by disaster according to a type of disaster.SOLUTION: A master station 11 includes: a reception unit 111a for receiving disaster related information on disaster; a control unit 112 for determining a type of disaster based on the disaster related information; and a storage unit 113 for storing a management table 113a associating the type of disaster with a slave station 12 that broadcasts toward a disaster area affected by disaster. The control unit 112 instructs a predetermined slave station 12p associated with a predetermined disaster to output for attention evocation when the predetermined disaster is selected among multiple types of disaster.SELECTED DRAWING: Figure 1

Description

This disclosure relates to the master station, method and program, and in particular, it may instruct the slave station to output (broadcast) a warning to the disaster area affected by the disaster, depending on the type of disaster. Regarding possible master stations, methods and programs.

A broadcast radio system (disaster prevention) in which a plurality of slave station facilities receive a radio signal from a master station facility, each of the plurality of slave station facilities converts the radio signal into voice, and then broadcasts loudly to local residents. Wireless system) is known.

In Non-Patent Document 1 and Non-Patent Document 2, in the broadcast radio system, a plurality of slave station facilities receive radio signals from the master station equipment, and each of the plurality of slave station facilities voices the received radio signals. It is stated that loudspeaker broadcasting will be performed after conversion to. When performing loudspeaker broadcasting, the operator of the master station equipment selects an identifier such as the slave station number of the slave station equipment to be broadcast or an identifier such as a group number set for multiple slave station equipment to be broadcast. And give a broadcast instruction. When the slave station equipment receives a broadcast instruction from the master station equipment, the slave station number or group number registered in the slave station equipment itself matches the slave station number or group number specified in the broadcast instruction. If it does, it will be broadcast, and if there is a discrepancy, it will not be broadcast. For example, when there is a risk of flooding of a river, the operator of the master station equipment selects the slave station number or group number of the slave station equipment in the area where damage is expected and gives a broadcast instruction to call attention. Do. At this time, the operator of the master station equipment selects the group number of the slave station equipment in the river flooding area in anticipation of the largest river flooding in order to avoid the situation where the broadcast was not heard in advance. And give a broadcast instruction. As a result, loudspeakers will be broadcast to all areas where damage is expected during the largest river floods, regardless of the actual scale of the river floods. As a result, local residents who were not actually damaged by the flooding of small or medium-sized rivers will actually receive a loudspeaker broadcast to call attention as the operation period of the broadcast radio system becomes longer. As the experience of no damage increases, it becomes a habit to downplay loudspeakers. And even when the largest river flood is actually assumed and a loud voice alert is broadcast, the local residents do not trust the contents and do not evacuate, so evacuation is delayed.

Patent Document 1 describes that when one of a plurality of areas of a broadcasting area is selected, a slave station device registered in association with this area is displayed on a display together with a map of the broadcasting area. .. At this time, since the operator selects the broadcasting area, if the operator himself does not fully understand the disaster situation, the broadcasting area selected by the operator and the broadcasting area to be actually broadcast do not match.

Japanese Unexamined Patent Publication No. 2012-4877 Municipal Digital Broadcast Communication System Standard ARIB STD-T86 3.0 Edition, Association of Radio Industries and Businesses, revised on May 29, 2007 Municipal Digital Broadcast Communication System TYPE2 Standard Standard ARIB STD-T115 2.0 Edition, Association of Radio Industries and Businesses, revised on July 6, 2016

As described above, if the operator does not fully understand the disaster situation, there is a problem that the broadcasting area selected by the operator and the broadcasting area to be actually broadcast do not match.

An object of the present disclosure is to provide a master station, method and program for solving the above-mentioned problems.

The master station related to this disclosure is
A receiver that receives disaster-related information about disasters,
A control unit that determines the type of disaster based on the disaster-related information,
A storage unit that stores a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
With
When a predetermined disaster is selected from the plurality of types of the disaster, the control unit instructs a predetermined slave station associated with the predetermined disaster to output a warning.

The method pertaining to this disclosure is
Receiving disaster-related information about disasters and
Determining the type of disaster based on the disaster-related information
To store a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
When a predetermined disaster is selected from the plurality of types of the disaster, the predetermined slave station associated with the predetermined disaster is instructed to output a warning.
To be equipped.

The program related to this disclosure is
Receiving disaster-related information about disasters and
Determining the type of disaster based on the disaster-related information
To store a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
When a predetermined disaster is selected from the plurality of types of the disaster, the predetermined slave station associated with the predetermined disaster is instructed to output a warning.
To the computer.

According to the present disclosure, it is possible to provide a master station, a method and a program capable of instructing a slave station to output a warning to a disaster area affected by a disaster according to the type of disaster. ..

It is a block diagram which illustrates the master station which concerns on Embodiment 1. FIG. It is a block diagram which illustrates the system which concerns on Embodiment 1. FIG. It is a flowchart which illustrates the operation of the master station which concerns on Embodiment 1. FIG. It is a flowchart which illustrates the operation of the master station which concerns on Embodiment 1. FIG. It is a figure which illustrates the relationship between the slave station number which concerns on Embodiment 1 and a disaster area. It is a figure which illustrates the management table which concerns on Embodiment 1. FIG. It is a figure which illustrates the management table which concerns on Embodiment 1. FIG. It is a figure which illustrates the management table which concerns on Embodiment 1. FIG. It is a flowchart which illustrates the operation of the master station which concerns on Embodiment 5. It is a figure which illustrates the relationship between the slave station number which concerns on Embodiment 6 and a disaster area. It is a figure which illustrates the management table which concerns on Embodiment 6.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same or corresponding elements are designated by the same reference numerals, and duplicate description will be omitted as necessary for the sake of clarity of description.

[Embodiment 1]
The configuration of the master station and the system according to the first embodiment will be described.
In the first embodiment, an example will be described in which the master station collects rainfall information and river water level information, which are disaster-related information, from the outside and performs a loudspeaker broadcast using the broadcast type “river flooding”.

FIG. 1 is a block diagram illustrating a master station according to the first embodiment.

As shown in FIG. 1, the master station 11 according to the first embodiment includes a receiving unit 111a, a transmitting unit 111b, a control unit 112, a storage unit 113, and an antenna 114. The master station may be referred to as a master station facility.

The receiving unit 111a receives disaster-related information regarding a disaster.

The control unit 112 determines the type of disaster based on the received disaster-related information.

The storage unit 113 stores the management table 113a in which the type of disaster and the slave station 12 that outputs a warning to the disaster area affected by the disaster are linked.

When a predetermined disaster is selected from a plurality of disaster types, the control unit 112 instructs a predetermined slave station 12p associated with the predetermined disaster to output a warning via the transmission unit 111b. .. Specifically, the instruction to output the alert issued by the control unit 112 includes a broadcast instruction and a display instruction to a display unit (not shown) connected to a predetermined slave station 12p. Hereinafter, the warning instruction instructed by the control unit 112 will be described as an example of a broadcast instruction.

The control unit 112 may predict a disaster area and a disaster level indicating the scale of the disaster for each of a plurality of types of disasters. Further, the control unit 112 may instruct the output (broadcast) of the alert based on the disaster level indicating the scale of the disaster.

FIG. 2 is a block diagram illustrating the system according to the first embodiment.

As shown in FIG. 2, the system 10 according to the first embodiment includes a master station 11 and a slave station 12. The slave station 12 includes a slave station receiving unit 121, a slave station control unit 122, a slave station storage unit 123, an antenna 124, and an output unit 125. One or more slave stations 12 may exist in the system 10. The slave station is sometimes called a slave station facility.

The slave station receiving unit 121 receives the broadcast instruction of the alert sent from the master station 11.

The output unit 125 outputs (broadcasts) a warning to the disaster area based on the broadcast instruction. The output unit may also be referred to as a loudspeaker or a speaker. When the slave station receiving unit 121 receives a warning display instruction, the output unit 125 outputs a warning screen to the display unit.

Since the master station 11 is as described above, the description thereof will be omitted. However, the receiving unit 111a and the transmitting unit 111b are collectively referred to as an interface unit 111. The control unit 112, the interface unit 111, and the storage unit 113 may be collectively referred to as a wireless transmission / reception unit 11a.

The control unit 112, the interface unit 111, and the storage unit 113 may be built in the wireless transmission / reception unit 11a as shown in FIG. Further, they may be configured in a separate housing and may be connected to the wireless transmission / reception unit 11a by wire or wirelessly.

The outline of the operation of the master station and the system according to the first embodiment will be described.

The master station 11 receives disaster-related information regarding the disaster. The master station 11 specifies the broadcast type according to the type of disaster included in the disaster-related information. The master station 11 stores information associated with the broadcast type and the slave station 12 that broadcasts to the disaster area affected by the disaster in the management table 113a.

Specifically, the master station 11 stores and manages the broadcast type, one or more slave station numbers, the group number, or both in the management table 113a, with the type of disaster as the broadcast type. To do. The management table may also be referred to as a broadcast target number management table. The slave station number is a number that identifies the slave station 12. The group number is a number that identifies a plurality of slave stations 12.

The master station 11 gives a loudspeaker instruction to a predetermined slave station 12p specified by the slave station number associated with the broadcast type selected from the management table 113a, the group number, or both. That is, when the operator selects the broadcast type, the master station 11 identifies the predetermined slave station 12p associated with the broadcast type using the predetermined slave station number of the predetermined slave station 12p, and determines the predetermined slave station 12p. Instruct the slave station 12p to broadcast a loud voice to call attention. The predetermined slave station 12p receives a loudspeaker broadcast instruction and broadcasts to the disaster area based on the received instruction.

As a result, the operator of the master station 11 can enter the disaster area where damage is expected by simply selecting the broadcast type without being aware of the disaster situation, the scale of the expected disaster, the positional relationship of the slave station 12, and the like. It is possible to instruct loudspeaker broadcasting only to a predetermined slave station 12p that broadcasts. In addition, the operator of the master station 11 does not have to manually change the group number of the slave station 12, but simply selects the broadcast type to set the predetermined slave station 12p for broadcasting to the disaster area where damage is expected. Loudspeaker broadcasting can be instructed only for that.

Information including at least one of disaster-related statistical information, disaster-related forecast information, predicted disaster scale, and disaster impact range is referred to as disaster-related information.

The details of the operation of the master station and the system according to the first embodiment will be described.
FIG. 3 is a flowchart illustrating the operation of the master station according to the first embodiment.

As shown in FIG. 3, the master station 11 collects (receives) disaster-related information related to the disaster of "river flooding" via the receiving unit 111a of the interface unit 111 (step S101). The disaster-related information when the broadcast type is "river flooding" includes, for example, precipitation information, river water level information, and the like.

The master station 11 may acquire disaster-related information from another device, the Internet, an intranet, or the like via a network (not shown). In addition, the master station 11 may acquire disaster-related information using satellite communication or a self-employed network. Further, the operator may manually store (register) the disaster-related information in the storage unit 113. Further, the operator may connect the storage medium to the master station 11 and store the disaster-related information in the storage unit 113.

The slave station 12 covers the expected disaster occurrence patterns in advance and stores the group number associated with the type of disaster.

The master station 11 expands or contracts the disaster area based on whether or not the disaster level indicating the scale of the disaster included in the disaster-related information exceeds the threshold value.

Specifically, whether or not the acquired disaster-related information, for example, information on river flooding, exceeds the threshold value for updating the management table 113a for each broadcast type stored in the storage unit 113 in advance. Is confirmed (step S102).

When the acquired disaster-related information exceeds the threshold value for updating the management table 113a for each broadcast type stored in the storage unit 113 in advance (step S102: Yes), the master station 11 performs the following processing. That is, when step S102 is Yes, the master station 11 is a disaster area affected by a disaster with the broadcast type "river flooding" based on the information about the slave station 12 stored in the storage unit 113, and is a broadcast target. Determine the disaster area.

The case where the acquired disaster-related information exceeds the threshold value for updating the management table 113a for each broadcast type stored in the storage unit 113 in advance can be said to be, for example, the case where the disaster level indicating the scale of the disaster exceeds the threshold value. .. In this case, the control unit 112 may expand the disaster area. Then, the control unit 112 determines the group number of the predetermined slave station 12p that broadcasts to the determined disaster area.

In this way, the control unit 112 updates the management table 113a for each broadcast type of the master station 11 (step S103). The management table 113a for each broadcast type may be updated automatically, or may be updated by the operator operating from the interface unit 111.

Further, the information about the slave station 12 is sent from the slave station number assigned to the slave station 12, the group number assigned to the slave station 12, the latitude / longitude information indicating the position of the slave station 12, and the slave station 12. Includes information about the area where the loudspeaker audio arrives.

Further, when the control unit 112 cannot select all the target slave stations 12 only by the group number of the predetermined slave station 12p, the control unit 112 sets the slave station number and the group number so that all the slave stations 12 to be broadcast can be selected. Determine the combination.

Here, the determination of whether or not the management table 113a is updated will be described with reference to a specific example. The case where the precipitation information of the regional meteorological observation system of the Japan Meteorological Agency obtained from the Internet is used as the disaster-related information will be described as an example.

FIG. 4 is a flowchart illustrating the operation of the master station according to the first embodiment.

As shown in FIG. 4, the master station 11 acquires mesh information of rainfall information of the regional meteorological observation system of the Japan Meteorological Agency on the Internet from the interface unit 111 and stores it in the storage unit 113 (step S201). The mesh information of the precipitation information of the regional meteorological observation system of the Japan Meteorological Agency is the information showing the precipitation information in units of several meters square in the corresponding area.

It is assumed that the interface unit 111 acquires the mesh information of the rainfall information of the regional meteorological observation system of the Japan Meteorological Agency on the Internet at regular intervals. Further, it is assumed that the value related to the transition of the mesh information of the precipitation information is stored in advance as the threshold value for updating the management table 113a for each broadcast type. In addition, the values related to the transition of the mesh information of the rainfall information are, for example, statistical values that continuous rainfall of several millimeters or more per unit time in the range where the slave station 12 exists, and the average amount of rainfall per unit time is several millimeters or more. It is a statistical value that it has increased, a statistical value that rainfall of several millimeters or more continues in a unit time on a river and in a specific area around it.

Further, the threshold value for updating the management table 113a may be manually input by the administrator or the operator of the master station 11, or may be acquired and updated from the network via the interface unit 111.

Here, as a threshold value for updating the management table 113a for each broadcast type, a case where a statistical value of continuous rainfall of several millimeters or more per unit time is used on a river and in a specific area around the river will be described.

Returning to FIG. 4, after step S201, the control unit 112 determines whether or not the unit-time rainfall on the river and in the surrounding specific area exceeds the threshold value for updating the management table 113a for each broadcast type. (Step S202).

The mesh information of the collected rainfall information may be narrowed down under conditions for handling it as valid information, for example, precipitation of 2 mm or more.

If the result of the determination in step S202 is below the threshold value (step S202: No), the control unit 112 does not update the management table 113a. That is, the control unit 112 does not change the disaster area shown in the management table 113a when the disaster level indicating the scale of the disaster is equal to or less than the threshold value.

If step S202 is No, the interface unit 111 returns to step S201 and continues to acquire the mesh information of the rainfall information of the regional meteorological observation system of the Japan Meteorological Agency on the Internet at regular intervals.

When the control unit 112 exceeds the threshold value as a result of the determination in step S202 (step S202: Yes), the control unit 112 has the mesh information of the collected rainfall information and the position information such as the latitude and longitude of the slave station 12 stored in the storage unit 113. And are acquired (step S203).

The control unit 112 compares the mesh information of the rainfall information with the position information such as the latitude and longitude of the slave station 12, and determines, for example, the following districts as districts where the broadcast regarding river flooding should be heard. ..

<Area where you should listen to broadcasts about river flooding>
Areas within X1 meters around the river, areas around the river Y1 meters or more and Y2 meters or less and an altitude of Z1 meters or less, and areas around the evacuation center X2 meters around the river. However, X1, X2, Y1, Y2, and Z1 indicate numerical values.

The control unit 112 selects the group number of the slave station 12 to be broadcast or the combination of the slave station number and the group number so that these areas are included as the sound transmission area of the loudspeaker broadcast, and sets the management table 113a. Update (step S204).

The position information such as the latitude and longitude of the slave station 12 includes, for example, the position information of the slave station 12 alone and the position information of a group composed of a plurality of slave stations 12.

Further, as shown in step S203 of FIG. 4, the control unit 112 performs loudspeaker broadcasting in a group consisting of the slave station 12 alone or a plurality of slave stations 12 in addition to the position information such as the latitude and longitude of the slave station 12. Obtain information on the sound area, hazard map information, and the presence or absence of evacuation supporters. Based on the information, the control unit 112 may determine the area where the broadcast regarding the river flood should be heard. The hazard map information includes information such as topography, geology, altitude, shelter location, and building information.

Here, returning to FIG. 3, after step S103, when the slave station 12 performs a loudspeaker broadcast regarding river flooding by an instruction from the master station 11, the operator of the master station 11 broadcasts from the interface unit 111 as a broadcast target. Select the type "river flooding" and give a broadcast instruction (step S104).

When the master station 11 receives a broadcast start execution (broadcast instruction) from the interface unit 111 (step S104: Yes), the master station 11 is a child of a predetermined slave station 12p corresponding to the selected broadcast type from the management table 113a for each broadcast type. Acquire the station number and group number (step S105). In this example, since the broadcast type "river flooding" is selected for the master station 11, the slave station number or group number of the predetermined slave station 12p corresponding to the broadcast type is acquired.

The control unit 112 transmits a broadcast instruction for broadcasting to a predetermined slave station 12p (step S106). Specifically, the control unit 112 generates a broadcast activation signal including the slave station number or group number of the corresponding predetermined slave station 12p as a call destination number.

When the control unit 112 generates the broadcast start signal, the control unit 112 may display the information of the predetermined slave station 12p on the interface unit 111 in order to notify the operator of the predetermined slave station 12p to be broadcast. The control unit 112 transmits a broadcast start signal from the antenna 114.

The slave station receiving unit 121 of the predetermined slave station 12p receives the broadcast start signal at the antenna 124. The slave station control unit 122 stores (registers) a slave station number of its own station or a group number stored in the slave station storage unit 123, and a call destination number included in the received broadcast activation signal. Compare.

When the called destination number matches any of the slave station number and the group number of the own station, the slave station control unit 122 broadcasts from the output unit 125.

Up to this point, it has been described that when a disaster occurs, the group number of the slave station 12 linked to the broadcast type "river flooding" or the information of the combination of the slave station number and the group number is updated. On the other hand, even when the risk of a disaster decreases and the vehicle returns to normal, the group number of the slave station 12 linked to the broadcast type "river flooding" or the information of the combination of the slave station number and the group number may be updated. .. In other words, the control unit 112 may update the management table 113a even when the risk of disaster is reduced and the normal state is restored.

Specifically, it is assumed that a value related to the transition of the mesh information of the rainfall information is stored in advance as a threshold value for updating the management table 113a for each broadcast type. Here, as a threshold value for updating the management table 113a for each broadcast type, a case will be described in which a statistical value indicating that continuous rainfall of several millimeters or more does not continue in a unit time on a river or in a specific area around the river is used. To do.

The interface unit 111 acquires mesh information of rainfall information of the regional meteorological observation system of the Japan Meteorological Agency on the Internet at regular intervals and stores it in the storage unit 113. In addition, the control unit 112 determines whether or not the time during which the rainfall exceeding a certain value does not continue on the river and in the surrounding specific area exceeds the continuation threshold for updating the management table 113a for each broadcast type. Do.

As a result of the determination, the control unit 112 does not update the management table 113a when the time during which the rainfall exceeding a certain value does not continue falls below the continuation threshold value. The fact that the time during which the rainfall above a certain value does not continue falls below the continuation threshold means that the time during which the rainfall above a certain value continues continues for a long time. When the amount of rainfall above a certain value continues for a long time, the amount of rainfall increases again, and the disaster level indicating the scale of the disaster increases. Therefore, the control unit 112 may not change the disaster area when the disaster level indicating the scale of the disaster exceeds the disaster threshold value.

As a result of the determination, when the time when the rainfall above a certain value is not continued exceeds the continuation threshold value, the control unit 112 has the mesh information of the collected rainfall information and the latitude and longitude of the slave station 12 stored in the storage unit 113. The group number of the slave station or the combination of the slave station number and the group number may be selected so that the range of broadcasting related to river flooding becomes the minimum necessary area in comparison with the location information such as.

The fact that the time during which the rainfall above a certain value does not continue exceeds the continuation threshold means that the time during which the rainfall above a certain value continues is shortened. A shorter duration of rainfall above a certain value corresponds to a smaller rainfall and a smaller disaster level indicating the scale of the disaster. Therefore, the control unit 112 may reduce the disaster area when the disaster level indicating the scale of the disaster is equal to or less than the disaster threshold value.

Further, the control unit 112 may set the target slave station 12 to "none" so as not to broadcast about river flooding.

In this way, when the risk of a disaster is reduced and the management table 113a is updated even when returning to normal times, the operator of the master station 11 selects the wrong broadcast type in normal times and gives a broadcast instruction. However, since broadcasting is not actually performed, it is possible to prevent broadcasting accidents.

Further details of the operation of the master station and the system according to the first embodiment will be described.
FIG. 5 is a diagram illustrating the relationship between the slave station number and the disaster area according to the first embodiment.
FIG. 6A is a diagram illustrating a management table according to the first embodiment.
FIG. 6B is a diagram illustrating a management table according to the first embodiment.
FIG. 6C is a diagram illustrating a management table according to the first embodiment.

The Gr number shown in FIG. 5 indicates a group number for identifying the slave station 12. The master station 11 starts broadcasting to the slave station 12 based on the group number.

The control unit 112 of the master station 11 reads and acquires the information of the group number associated with the slave station 12 from the interface unit 111 or the storage unit 113. The control unit 112 updates the management table 113a for each broadcast type based on the disaster-related information collected from the interface unit 111.

For example, when the control unit 112 determines from the disaster-related information on rainfall collected from the interface unit 111 that the scale of the river flood and sediment disaster is small, the range affected by the river flood is shown in, for example, the figure. It is determined that the range Ra1 shown in 5. The control unit 112 broadcasts to the slave station 12 that broadcasts to the range Ra1 affected by the river flood with the group number 2000. That is, the control unit 112 instructs the third slave station 12c and the fifth slave station 12e, which are the slave stations 12 of the group number 2000 associated with the broadcast type "river flooding", to broadcast.

In this case, the control unit 112 determines that the range affected by the sediment-related disaster is, for example, the range Rb1 shown in FIG. The control unit 112 broadcasts to the slave station 12 that broadcasts to the range Rb1 affected by the sediment-related disaster with the group number 5100. That is, the control unit 112 instructs the fourth slave station 12d, which is the slave station 12 of the group number 5100, associated with the broadcast type “river flooding” to broadcast. In order to give such an instruction, the control unit 112 shows the slave station numbers and group numbers corresponding to the broadcast types "river flooding" and "sediment disaster" in the management table 113a for each broadcast type, as shown in FIG. 6A. Update.

For example, when the control unit 112 determines from the disaster-related information on rainfall collected from the interface unit 111 that the disaster scale of the river flood and the sediment disaster is medium, the range affected by the river flood is, for example, the figure. It is determined that the range Ra2 shown in 5. The control unit 112 broadcasts to the slave station 12 that broadcasts to the range Ra2 affected by the river flooding with the group number 3000.

In this case, the control unit 112 determines that the range affected by the sediment-related disaster may remain the range Rb1 shown in FIG. The control unit 112 broadcasts to the slave station 12 that broadcasts to the range Rb1 affected by the sediment-related disaster with the group number 5100. For this purpose, the control unit 112 updates the slave station numbers and group numbers corresponding to the broadcast types “river flooding” and “sediment disaster” in the management table 113a for each broadcast type as shown in FIG. 6B.

For example, when the control unit 112 determines from the disaster-related information on rainfall collected from the interface unit 111 that the scale of the river flood and sediment disaster is large, the range affected by the river flood is shown in, for example, FIG. It is determined that the range Ra3 shown in 5. Then, the control unit 112 broadcasts to the slave station 12 that broadcasts to the range Ra3 affected by the river flooding with the group number 4000.

In this case, the control unit 112 determines that the range affected by the sediment-related disaster is the range Rb2 shown in FIG. The control unit 112 broadcasts to the slave station 12 that broadcasts to the range Rb2 affected by the sediment-related disaster with the group number 6100. For this purpose, the control unit 112 updates the slave station numbers and group numbers corresponding to the broadcast types “river flooding” and “sediment disaster” in the management table 113a for each broadcast type as shown in FIG. 6C.

As shown in FIGS. 6A, 6B, and 6C, the operator of the master station 11 can not sufficiently grasp the actual disaster-related information, the terrain of the broadcast destination, the disaster situation, etc., according to the scale of the disaster. By using the updated management table 113a for each broadcast type, it is possible to select the broadcast type "river flood" as the broadcast target and give a broadcast instruction. As a result, an appropriate slave station can be automatically selected and broadcast.

Further, the master station 11 according to the first embodiment dynamically changes the slave station number and the group number associated with the broadcast type based on the information including the scale of the disaster and the range of influence, with the type of disaster as the broadcast type. To do. As a result, the operator of the master station 11 can broadcast to the minimum necessary slave station 12 according to the disaster situation by simply selecting the broadcast type to be broadcast.

Specifically, buttons "river flooding" and "sediment disaster" having the same names as the broadcasting type are installed in the interface unit 111 of the master station 11. Regardless of the scale of the disaster, the operator presses the buttons "river flooding" and "earth and sand disaster" with the same name as the broadcast type to start broadcasting.

The operator can broadcast to an appropriate range according to the disaster situation simply by performing such a simple operation. Then, the operator needs to be aware of the disaster situation and the scale of the assumed disaster and the positional relationship of the slave station 12 to be broadcast, and to manually change the group number registered in the slave station 12. There is no.

As a result, it is possible to provide a master station, a method, and a program capable of instructing a slave station to output (broadcast) a warning to a disaster area affected by a disaster according to the type of disaster. ..

In addition, it is possible to prevent the reliability of the loudspeaker broadcast from being lowered due to the discrepancy between the actually assumed damaged area and the broadcast target area, and to provide appropriate information to those who listen to the broadcast such as residents.

In addition, if loudspeakers are broadcast within an appropriate range, residents will no longer have the habit of disregarding loudspeakers, and even when loudspeakers such as evacuation orders regarding disasters are broadcast, they will voluntarily trust the content. You can evacuate.

Further, in the first embodiment, the broadcast is started by pressing the "river flooding" or "sediment disaster" button of the master station 11 as an example, but the present invention is not limited to this. For example, the operator may instruct the master station 11 to start broadcasting the slave station 12 by using a telephone, or the information terminal may instruct the master station 11 to start broadcasting the slave station 12. ..

[Embodiment 2]
In the second embodiment, the master station 11 has, for example, people, such as time, season, presence / absence of events in the vicinity, event holding time, crowd detection information, etc. The group number of the slave station 12 to be broadcast is determined by the broadcast type based on the information related to the movement of.

For example, consider a case where a tsunami warning is issued and an event is held in the sea as disaster-related information, which is expected to be a tsunami with a height of 5 meters.

At this time, the master station 11 receives event information including at least one of the presence / absence of an event, the holding time of the event, the holding place of the event, and the holding season of the event from another device via the network. The network includes, for example, communication networks such as the Internet and intranets, satellite communications, and self-employed networks. The operator of the master station 11 may manually register the event information in the storage unit 113 of the master station 11. Further, the master station 11 may receive event information from a plurality of slave stations 12.

If the tsunami warning is issued on a winter night when there is no event, it is unlikely that there will be a large number of people on the coast and the evacuation route will be less likely to be congested, so the master station 11 will be installed on the coast for broadcasting. The slave station 12 is automatically selected.

On the other hand, if the tsunami warning is issued during the daytime in summer and when an event is being held on the coast, there is a high possibility that there will be a large number of people on the coast and the evacuation route will be congested. In this case, the master station 11 automatically selects the slave station 12 along the coastline, along the road as the evacuation route, and in the inland area as the evacuation destination as the broadcast target.

In this way, the master station 11 is changed so as to add or reduce a predetermined slave station 12p based on the type of disaster, the time when the disaster occurred, the season when the disaster occurred, and the event information. The master station 11 instructs the changed predetermined slave station 12p to output (broadcast) a warning.

As a result, the master station 11 can add time information, event information, and the like to the disaster-related information, and can give a broadcast instruction to the slave station 12 in an appropriate range based on these.

[Embodiment 3]
In the third embodiment, the master station 11 sets a fire or the like whose situation changes in real time as a broadcast type.

In a fire, the direction of smoke and the condition of the spread range change in real time depending on the wind direction, surrounding conditions, climate, etc. Fires can also occur in multiple locations at the same time.

At this time, the master station 11 increases the update frequency of the management table 113a for each broadcast type. In addition, the master station 11 collects fire conditions such as fire spread range, wind direction, surrounding terrain, and climate for each of a plurality of locations. That is, when the type of disaster is a fire, the master station 11 includes at least one of the spread range of the fire, the wind direction of the fire, the terrain around the place where the fire occurred, and the weather information at the time of the fire. Information is received from the slave station 12.

As a result, the master station 11 can associate the broadcast type "fire" of the management table 113a with the slave station numbers and group numbers of the slave stations 12 installed in the range affected by the fire at a plurality of places. Then, the master station 11 changes to add or reduce a predetermined slave station 12p based on the fire information, and instructs the changed predetermined slave station 12p to output (broadcast) a warning.

When the operator selects the broadcast type "fire", the master station 11 broadcasts from a predetermined slave station 12p at a time to the fire occurrence sites at a plurality of places and the range affected by each fire. Can be done.

[Embodiment 4]
In the fourth embodiment, the master station 11 automatically generates a new broadcast type and adds it to the management table 113a for each broadcast type.

When the master station 11 collects information on a new disaster type that is not included in any of the pre-registered broadcast types (disaster types), the master station 11 adds a new row to the management table 113a for each broadcast type.

The master station 11 adds a new disaster type and a slave station 12 that broadcasts to a disaster area affected by the new disaster based on the collected information on the new disaster type. Generate information. The master station 11 automatically adds and stores additional information including a slave station number and a group number to be broadcast to the management table 113a.

The master station 11 subsequently updates the slave station number and the group number of the management table 113a in the same manner.

As a result, it is possible to flexibly respond to diversifying natural disasters and man-made disasters, and instruct appropriate slave stations 12 to broadcast.

[Embodiment 5]
FIG. 7 is a flowchart illustrating the operation of the master station according to the fifth embodiment.

As shown in FIG. 7, the fifth embodiment is different from the first embodiment in that the process of executing the broadcast activation from the master station 11 is executed before the process of acquiring the disaster-related information.

As a result, in the fifth embodiment, the frequency of acquiring disaster-related information and updating the management table 113a for each broadcast type can be minimized. As a result, the power of the entire system 10 can be saved. In addition, congestion of the communication network can be prevented by reducing unnecessary communication.

[Embodiment 6]
FIG. 8 is a diagram illustrating the relationship between the slave station number and the disaster area according to the sixth embodiment.
FIG. 9 is a diagram illustrating a management table according to the sixth embodiment.

In the sixth embodiment, if there is no appropriate group number associated with the broadcast type, a group number targeting the appropriate slave station 12 is automatically generated, and the target slave station 12 is subjected to the group number. It automatically registers the group number.

If there is no group number for calling all the slave stations 12 in the management table 113a (see FIG. 5), the master station 11 cannot instruct all the slave stations 12 to broadcast when a large-scale tsunami occurs.

Therefore, in this case, the control unit 112 of the master station 11 sets the group number 4000 and the slave station number of the fourth slave station 12d as the broadcast destinations associated with the broadcast type “tsunami”. Alternatively, in this case, the control unit 112 may newly set the group number 7000 as the broadcasting destination and register the new group number 7000 in all the slave stations 12.

The master station 11 may determine which method to use from the number of slave stations 12 to be broadcast loudly, the number of slave stations to be linked, and the number of group numbers.

The case where the group number 7000 is newly set as the broadcasting destination and the new group number 7000 is registered in all the slave stations 12 will be described. In this case, the control unit 112 of the master station 11 updates the management table 113a for each broadcast type and newly stores the group number 7000 as the broadcast destination associated with the broadcast type “tsunami” as shown in FIG. To do.

In the case of a small-scale tsunami, the control unit 112 may reduce the slave station number or group number as the broadcast destination from the management table 113a for each broadcast type.

In this way, the master station 11 may be changed to add or reduce a predetermined slave station 12p to be broadcast based on the disaster level indicating the scale of the disaster.

After that, the master station 11 automatically rewrites the group number of the slave station 12 by using at least one of a wireless line, a dedicated wired line, satellite communication, and non-contact communication by automatic control of the drone.

As a result, when the operator broadcasts to the broadcast type "tsunami", the broadcast instruction can be given to the slave station 12 of the group number that has not been created and stored in advance.

In this example, the slave station number and the group number are used to identify the slave station 12, but the present invention is not limited to this. In addition to the slave station number and the group number, an ID (Identification) or a group ID for identifying the slave station 12 may be used.

In the above-described embodiment, the present invention has been described as a hardware configuration, but the present invention is not limited thereto. The present invention can also realize the processing of each component by causing a CPU (Central Processing Unit) to execute a computer program.

In the above embodiments, the program can be stored and supplied to a computer using various types of non-transitory computer readable media. Non-transient computer-readable media include various types of tangible storage media. Examples of non-temporary computer-readable media include magnetic storage media (specifically flexible disks, magnetic tapes, hard disk drives), optical magnetic storage media (specifically optical magnetic disks), and CD-ROMs (Read Only Memory). ), CD-R, CD-R / W, semiconductor memory (specifically, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM)), flash ROM, RAM (Random Access Memory). The program may also be supplied to the computer by various types of transient computer readable media. Examples of temporary computer-readable media include electrical, optical, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above. Various changes that can be understood by those skilled in the art can be made within the scope of the invention in the configuration and details of the invention of the present application.

The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit.

Some or all of the above embodiments may also be described, but not limited to:
(Appendix 1)
A receiver that receives disaster-related information about disasters,
A control unit that determines the type of disaster based on the disaster-related information,
A storage unit that stores a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
With
When a predetermined disaster is selected from the plurality of types of the disaster, the control unit instructs a predetermined slave station associated with the predetermined disaster to output a warning.
master station.
(Appendix 2)
The control unit expands or contracts the disaster area based on whether or not the disaster level indicating the scale of the disaster included in the disaster-related information exceeds a predetermined threshold value.
The master station described in Appendix 1.
(Appendix 3)
The control unit
If the disaster level exceeds the predetermined threshold, the disaster area is expanded.
When the disaster level is equal to or less than the predetermined threshold value, the disaster area is not changed.
The master station described in Appendix 2.
(Appendix 4)
The control unit
When the disaster level exceeds the predetermined threshold value, the disaster area is not changed.
When the disaster level is equal to or less than the predetermined threshold value, the disaster area is reduced.
The master station described in Appendix 2.
(Appendix 5)
The disaster-related information is information including at least one of the disaster-related statistical information, the disaster-related prediction information, the scale of the disaster, and the range of influence of the disaster.
The master station according to any one of Appendix 1 to 4.
(Appendix 6)
The control unit predicts the disaster area and the disaster level indicating the scale of the disaster for each of the plurality of types of disasters.
The master station according to any one of Appendix 1 to 5.
(Appendix 7)
The control unit identifies the predetermined slave station using the predetermined slave station number of the predetermined slave station, and instructs the predetermined slave station to output the alert.
The master station according to any one of Supplementary notes 1 to 6.
(Appendix 8)
The receiving unit receives event information including at least one of the presence / absence of an event, the holding time of the event, the holding location of the event, and the holding season of the event from another device via the network.
The control unit is modified to add or reduce the predetermined slave station based on the type of the disaster, the time when the disaster occurred, the season when the disaster occurred, and the event information. Instruct the modified predetermined slave station to output a warning.
The master station according to any one of Supplementary notes 1 to 7.
(Appendix 9)
When the type of disaster is a fire, the receiving unit is at least one of the spread range of the fire, the wind direction of the fire, the terrain around the place where the fire occurred, and the weather information at the time of the fire. Receive fire information including from the slave station
The control unit is modified to add or reduce the predetermined slave station based on the fire information, and instructs the modified predetermined slave station to output a warning.
The master station according to any one of Supplementary notes 1 to 7.
(Appendix 10)
When the receiving unit receives information on a new disaster type that is not included in any of the disaster types, the control unit may use the new disaster type based on the information on the new disaster type. And a slave station that broadcasts to the disaster area affected by the new disaster, and additional information associated with the above is generated, and the additional information is added to and stored in the management table.
The master station according to any one of Supplementary notes 1 to 7.
(Appendix 11)
The control unit predicts a disaster level indicating the scale of the disaster, and changes to add or reduce the predetermined slave station based on the disaster level.
The master station according to any one of Supplementary notes 1 to 7.
(Appendix 12)
Receiving disaster-related information about disasters and
Determining the type of disaster based on the disaster-related information
To store a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
When a predetermined disaster is selected from the plurality of types of the disaster, the predetermined slave station associated with the predetermined disaster is instructed to output a warning.
How to prepare.
(Appendix 13)
Receiving disaster-related information about disasters and
Determining the type of disaster based on the disaster-related information
To store a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
When a predetermined disaster is selected from the plurality of types of the disaster, the predetermined slave station associated with the predetermined disaster is instructed to output a warning.
A program that causes a computer to run.
(Appendix 14)
It has a master station and a slave station,
The master station is
A receiver that receives disaster-related information about disasters,
A control unit that determines the type of disaster based on the disaster-related information,
It has a storage unit that stores a management table associated with the type of disaster, the slave station that broadcasts to the disaster area affected by the disaster, and the storage unit.
When a predetermined disaster is selected from the plurality of disaster types, the control unit instructs a predetermined slave station associated with the predetermined disaster to output a warning.
The slave station
A slave station receiver that receives the above instructions,
It has an output unit that outputs the warning to the disaster area based on the instruction.
system.
(Appendix 15)
The control unit instructs the output of the alert based on the disaster level indicating the scale of the disaster.
The master station according to any one of Supplementary notes 1 to 7.

10 ... System 11 ... Master station 11a ... Wireless transmission / reception unit 111 ... Interface unit 111a ... Reception unit 111b ... Transmission unit 112 ... Control unit 113 ... Storage unit 113a ... Management table 114 ... Antenna 12 ... Slave station 12a ... First slave station 12b ... 2nd slave station 12c ... 3rd slave station 12d ... 4th slave station 12e ... 5th slave station 12p ... Predetermined slave station 121 ... Slave station receiving unit 122 ... Slave station control unit 123 ... Slave station storage unit 124 ... Antenna 125 ... Output unit Ra1, Ra2, Ra3, Rb1, Rb2 ... Range

Claims (10)

A receiver that receives disaster-related information about disasters,
A control unit that determines the type of disaster based on the disaster-related information,
A storage unit that stores a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
With
When a predetermined disaster is selected from the plurality of types of the disaster, the control unit instructs a predetermined slave station associated with the predetermined disaster to output a warning.
master station. The control unit expands or contracts the disaster area based on whether or not the disaster level indicating the scale of the disaster included in the disaster-related information exceeds a predetermined threshold value.
The master station according to claim 1. The control unit
If the disaster level exceeds the predetermined threshold, the disaster area is expanded.
When the disaster level is equal to or less than the predetermined threshold value, the disaster area is not changed.
The master station according to claim 2. The disaster-related information is information including at least one of the disaster-related statistical information, the disaster-related prediction information, the scale of the disaster, and the range of influence of the disaster.
The master station according to any one of claims 1 to 3. The control unit identifies the predetermined slave station by using the predetermined slave station number of the predetermined slave station, and instructs the predetermined slave station to output the alert.
The master station according to any one of claims 1 to 4. The receiving unit receives event information including at least one of the presence / absence of an event, the holding time of the event, the holding location of the event, and the holding season of the event from another device via the network.
The control unit is modified to add or reduce the predetermined slave station based on the type of the disaster, the time when the disaster occurred, the season when the disaster occurred, and the event information. Instruct the modified predetermined slave station to output a warning.
The master station according to any one of claims 1 to 5. When the type of disaster is a fire, the receiving unit has at least one of the spread range of the fire, the wind direction of the fire, the terrain around the place where the fire occurred, and the weather information at the time of the fire. Receive fire information including from the slave station
The control unit is modified to add or reduce the predetermined slave station based on the fire information, and instructs the modified predetermined slave station to output a warning.
The master station according to any one of claims 1 to 5. When the receiving unit receives information on a new disaster type that is not included in any of the disaster types, the control unit may use the new disaster type based on the information on the new disaster type. And a slave station that broadcasts to the disaster area affected by the new disaster, and additional information associated with the above is generated, and the additional information is added to and stored in the management table.
The master station according to any one of claims 1 to 5. Receiving disaster-related information about disasters and
Determining the type of disaster based on the disaster-related information
To store a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
When a predetermined disaster is selected from the plurality of types of the disaster, the predetermined slave station associated with the predetermined disaster is instructed to output a warning.
How to prepare. Receiving disaster-related information about disasters and
Determining the type of disaster based on the disaster-related information
To store a management table that links the type of disaster and the slave station that broadcasts to the disaster area affected by the disaster.
When a predetermined disaster is selected from the plurality of types of the disaster, the predetermined slave station associated with the predetermined disaster is instructed to output a warning.
A program that causes a computer to run.

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