JP7256030B2 - Disaster situation grasp system - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for accurately ascertaining disaster conditions in order to instruct and support fire fighting, evacuation guidance, and rescue activities in facilities when disasters such as fires, earthquakes, and terrorist attacks occur.

Conventionally, there is known a support system that uses a location information system equipped with a beacon to acquire the location of residents in a facility such as a building, and provides evacuation guidance and support for firefighting activities in the event of a fire ( For example, see Patent Document 1).
In addition, a support device connected to an automatic alarm facility that sends out abnormality information when a sensing means installed in the building detects an abnormality, and a plurality of terminals carried by each member of the self-defense fire brigade, The terminal includes a display unit, an operation unit, and a communication unit that transmits and receives data to and from the support device via a communication line, and the support device includes a first communication unit that communicates with the automatic alarm equipment and the communication line. and a second communication unit that communicates with the terminal via a second communication unit, and when receiving abnormality information from the automatic alarm equipment, transmits the abnormality information to the terminal and sends a message requesting action to respond to the abnormality An invention has been proposed that relates to a support system that displays on the terminal, receives a response from the terminal to the message, grasps the activity status, and transmits support information for the activity to the terminal (see Patent Document 2). ).

JP 2017-91477 A JP 2016-99706 A

However, in the conventional disaster prevention system, it is not easy to transmit information from the self-defense fire brigade members on site to the disaster prevention personnel standing by in the command room of the disaster prevention center, or to transmit commands from the disaster prevention personnel to the self-defense fire brigade personnel. At the same time, there was a limit to the speedy and accurate grasp of the situation by the person in charge of disaster prevention, so it could not be said that appropriate instructions could be given to the self-defense fire brigade members.

The present invention has been made with a focus on the above-mentioned problems, and the purpose thereof is to make a few changes to the existing system so that the self-defense firefighters on site can wait in a command room such as a disaster prevention center. To provide a disaster situation comprehension system capable of easily transmitting information to a person in charge of disaster prevention and transmitting commands from the person in charge of disaster prevention to self-defense fire brigade members.
Another object of the present invention is to devise the display on the display device installed in the command room of the disaster prevention center, etc., so that the person in charge of disaster prevention can grasp the current situation quickly and accurately. To provide a disaster situation comprehension system capable of giving appropriate instructions to, etc.

In order to solve the above problems, the present invention
a receiver capable of receiving a detection signal from a sensor installed in a predetermined area;
a display device having a display unit and capable of displaying a map of the predetermined area;
Information transmitted by a mobile information terminal having a wireless communication device capable of receiving a signal from a transmitter installed in the predetermined area and transmitting transmitter information including identification information of the transmitter and its own identification information a server capable of identifying the current location of the mobile information terminal and transmitting mobile terminal location information indicating the location, based on
The display device
a disaster situation display means for displaying a disaster mark at a disaster occurrence location on the map based on the received detection signal;
mobile terminal position display means for displaying a predetermined mark at a mobile terminal stay position on the map based on the mobile terminal position information acquired from the server;
code display means for displaying a contact code including contact information of the mobile information terminal corresponding to the predetermined mark on the display unit when the predetermined mark displayed on the display screen of the display unit is selected; , is provided.

According to the disaster situation grasping system having the configuration described above, since the contact code including the contact information of the mobile information terminal corresponding to the predetermined mark is displayed on the display device, the code is imaged (camera). By importing the information with an information terminal, it is possible to quickly contact a person with predetermined qualifications, such as a self-defense firefighter, who is at the scene of a disaster and confirm the situation. In addition, with only minor modifications to the existing system, it is possible to transmit information from on-site self-defense firefighters to disaster prevention personnel standing by in the command room of the disaster prevention center, etc., and to issue orders from disaster prevention personnel to self-defense firefighters can be easily transmitted.

Here, desirably, the contact code is a two-dimensional code that can be recognized by an information terminal having an image capturing function and a code decoding function.
If the contact code is a two-dimensional code, the code can be captured by an existing portable information terminal such as a smart phone, and it is possible to quickly contact self-defense firefighters and the like at the site of the disaster.

In addition, desirably, the mobile information terminal is capable of inputting information about the disaster situation in the predetermined area by the owner and transmitting it to the receiver or the server,
The display device is configured to be able to display the disaster situation on the display screen of the display unit based on the information about the disaster situation acquired from the receiver and/or the server.
According to this configuration, the contents input by the self-defense firefighters at the site of the disaster are displayed on the map of the display device, so that the situation at the site of the disaster can be accurately grasped.

Further, desirably, the information on the disaster situation transmitted by the portable information terminal includes information indicating the type and extent of the disaster,
The display device is configured to be able to display the type and degree of damage on the display screen of the display unit based on the information indicating the type and degree of damage acquired from the receiver and/or the server.
According to this configuration, the type and degree of damage are displayed on the screen of the display device, so that the situation at the disaster site can be accurately grasped.

Further, desirably, the display device transmits the information on the map indicating the type and extent of the disaster based on the information indicating the type and extent of the disaster obtained from the receiver and/or the server. It is configured to be able to be displayed near the display position of the mark of the mobile terminal or the owner of the terminal.
According to this configuration, since the type and degree of damage are displayed near the mark display position of the mobile terminal or terminal owner who transmitted the information, the position of the terminal owner who transmitted the information can be grasped. can.

Further, desirably, the attribute information of the owner of the portable information terminal is stored in the receiver or the server, and the display device displays the information of the portable information terminal based on the received identification information of the portable information terminal. The attribute information of the holder can be displayed on the display screen of the display unit.
According to the disaster situation grasping system having the configuration described above, since the attribute information of the owner of the mobile information terminal is displayed on the display device, it is possible to easily identify the person to whom the instruction is to be given, and to quickly contact the person. Can carry out appropriate instructions.

Further, desirably, the display device displays the mark of the portable information terminal possessed by the holder having the predetermined qualification or the portable information terminal possessed by the holder who does not have the predetermined qualification or the holder. It is configured to be able to be displayed on the display unit in a form different from the mark of the terminal.
According to this configuration, the location information system is configured to grasp the location of people staying in the area other than those who have predetermined qualifications, such as self-defense firefighters, and to generate and transmit information to be displayed on the map. without modification to the location information system, it is possible to distinguish between qualified and non-qualified persons, thereby quickly identifying qualified persons. Communicate effectively and provide appropriate instructions.

According to the present invention, it is possible to transmit information from self-defense fire brigade personnel on site to disaster prevention personnel standing by in a command room such as a disaster prevention center, and from disaster prevention personnel Commands can be easily transmitted to members. Moreover, it is possible for the person in charge of disaster prevention standing by in the command room of the disaster prevention center or the like to quickly and accurately grasp the current situation, so that there is an effect that it is possible to give appropriate instructions to the self-defense fire brigade members.

1 is a block diagram showing an embodiment of a disaster situation grasping system according to the present invention in which a position information system and a fire alarm system are integrated; FIG. It is a block diagram which shows the structural example of the portable information terminal used for the disaster situation grasping system of embodiment. It is a figure which shows an example of the floor plan image of the monitoring area displayed on the display apparatus of the fire receiver in a disaster prevention center. FIG. 10 is a diagram showing an example of a floor plan image of a monitoring area displayed on the display device when a mark on the floor plan is selected; FIG. 10 is an explanatory diagram showing an outline of a simple report operation in a portable information terminal used in the disaster situation grasping system of the embodiment; FIG. 10 is an explanatory diagram showing an outline of a current status report operation in a portable information terminal used in the disaster situation grasping system of the embodiment; It is a flow chart which shows an example of a damage situation grasping processing procedure in a fire receiver which constitutes a disaster situation grasping system of an embodiment. It is a block diagram which shows the modification of the disaster situation grasping system of the said embodiment.

An embodiment of a disaster situation grasping system to which the present invention is applied will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of the schematic configuration of the disaster situation grasping system of this embodiment.
As shown in FIG. 1, the location information system of this embodiment includes a mobile information terminal 20 capable of receiving signals (radio waves) from beacons (transmitters) 10 installed at multiple locations inside a building, and a mobile terminal 20. A location information server 40 that performs data communication with a mobile information terminal 20 via a telephone base station 30 and a communication network N such as the Internet, and a fire from a fire sensor 50 installed at a plurality of locations inside a building. A display device 61 that performs data communication between a fire receiver 60 capable of receiving a detection signal and a location information server 40 via a gateway (relay device) 70 and a communication network N such as the Internet, and is operated by a person in charge of disaster prevention. It is composed of an information terminal (hereinafter referred to as command terminal) 90 and the like.

The display device 61 includes a display unit and a data processing unit, and displays terminal location information and monitoring area map information obtained from the location information server 40 on the display unit together with information regarding the occurrence of an event such as a fire. have a function. In addition, the display device 61 displays a correspondence table of facilities such as fire detectors (IDs or addresses) and smoke prevention and exhaust devices installed in the monitoring area and their installation positions, as well as the locations of fires acquired from the fire detectors. A storage device 62 for storing fire information history including information and information on occurrence time, etc., and an input device 63 such as a keyboard and a mouse are connected.

The beacon 10 that transmits a wireless signal (unique information such as a device ID and equipment information) to the mobile information terminal 20 is, for example, Bluetooth (registered trademark) communication, a wireless LAN such as WiFi according to the IEEE 802.11 standard, infrared communication, visible light, etc. A signal is transmitted using a known communication method such as communication. Although the intervals at which the beacons 10 are arranged are not particularly limited, for example, the beacons 10 are arranged so that the communication range of each adjacent beacon 10 can cover the space in the building.
In addition, the beacon 10 includes a transmission unit that periodically transmits its own identification information on a radio signal to the surroundings. A signal (beacon signal) transmitted wirelessly by the beacon 10 should include at least identification information (the device ID of the transmitter) of the beacon 10, and further includes information about the area in which the beacon 10 is installed. Also good.

The mobile information terminal 20 and the command terminal 90 have data processing functions such as a CPU (Central Processing Unit), a non-volatile memory that stores programs executed by the CPU, and a working RAM (Random Access Memory). It is a device equipped with functions, and a known smartphone or the like can be used. Moreover, the portable information terminal 20 has a reception function of receiving a signal from the beacon 10, and the command terminal 90 has a camera function of capturing an image.
In the internal memory of the mobile information terminal 20, a beacon signal periodically transmitted by radio from the beacon 10 is received, identification information (device ID) included in the beacon signal is extracted, and beacon information including the identification information is stored. to the location information server 40 via the mobile phone base station 30 and the communication network N, and a floor plan based on the floor plan information sent from the location information server 40 via the communication network N and the mobile phone base station 30 An application program (location information display application) for executing processing for displaying an image on the screen is stored.

In this embodiment, as will be described later, the fire receiver 60 displays a QR code (registered trademark) describing the contact information (telephone number or e-mail address) of the portable information terminal 20 selected on the screen of the display device 61. When the command terminal 90 reads the displayed two-dimensional code using the camera function, the command terminal 90 decodes the code, extracts the contact information, and displays the extracted contact information. An application program that executes processing for automatically communicating with the mobile information terminal 20 is stored.
Since such a program is installed in a general smart phone, a general smart phone can be used as the command terminal 90 without storing a new application program especially for the system of this embodiment.

The fire detector 50 is connected to the fire receiver 60 via a different sensor line 51 for each security zone, and when heat, smoke, flame, harmful gas, etc. is detected, the fire is detected via the sensor line 51 A fire detection signal is sent to the fire receiver 60 . The fire sensor 50 may be a type (so-called R type) sensor that adds its own installation address to the fire detection signal, or a type (so-called P type) sensor that does not add an installation address. Also good.

When the fire receiver (R-type or P-type) 60 receives the fire detection signal from the fire detector 50, it displays the fire alarm on the display unit, rings the district bell, and interlocks with the smoke control device. conduct.
When the installation address of the fire sensor 50 is added to the fire detection signal, the fire receiver 60 identifies the location of the fire based on the installation address. On the other hand, if the installation address of the fire detector 50 is not added to the fire detection signal, the location of the fire (precaution area) is specified based on the sensor line 51 that transmitted the fire detection signal.

The location information server 40 stores map information (floor diagram) of each floor of the building managed by the location information server 40, identification information (terminal ID) unique to the mobile information terminal, and qualification of the owner of the mobile information terminal (self-defense). A database 41 is provided for storing attribute information (owner attribute information) such as firefighters) and roles (reporter, guider, rescuer, firefighter). The map information (floor map information) of each floor includes the device ID and installation position information of the beacons 10 installed on each floor.
Upon receiving the device ID of the beacon 10 from the mobile information terminal 20, the location information server 40 locates the mobile information terminal 20 on the floor map based on the received device ID of the beacon and information stored in the database 41. calculate.

The position information server 40 then executes a process of transmitting the position information of the portable information terminal 20 on the floor plan to the display device 61 via the communication network N and the gateway 70 . At this time, when a plurality of mobile information terminals 20 are present within the monitoring area (floor plan), information indicating the current positions of the plurality of mobile information terminals is transmitted to the display device 61 .
In addition, the location information server 40 refers to the table data in the database 41 based on the device ID and terminal ID of the transmitter sent from the portable information terminal 20, determines the attribute of the owner, and outputs the attribute information. It has a function of transmitting to the display device 61 and the fire receiver 60 via the gateway 70 together with the positional information. A table indicating the correspondence between the portable information terminal ID and the attribute of the owner is stored in the storage device 62 on the side of the display device 61, and the display device 61 is provided with the function of determining the attribute of the owner. Also good.

The display device 61 displays a mark indicating the current position and a fire receiver on the floor map read out from the storage device 62 and displayed on the display unit based on the position information of the mobile information terminal 20 received from the position information server 40 . A mark is displayed at the location of the fire based on the signal received from 60 . At this time, if the owner of the portable information terminal 20 in the monitoring area is a person with a predetermined qualification or role, such as a self-defense fire brigade member, the display form of the mark is changed and displayed on the floor map. Specifically, even if the patterns of the marks are the same, it is conceivable to display the marks of self-defense firefighters in black, and the marks of other general users in blue, for example.

FIG. 2 shows a configuration example of the portable information terminal 20. As shown in FIG. As shown in FIG. 2, the mobile information terminal 20 includes a beacon receiver 21 capable of receiving radio waves from the beacon 10, a wireless communication device 22 for communicating with the location information server 40 via the network N, a CPU (central processing unit), etc., a storage device 24 for storing application programs, etc., a touch panel display 25 having an input unit and a display unit, a battery 26 for supplying power supply voltage, and a clock generator for generating a clock signal. 27, etc.

In addition, the data processing unit 23 extracts information such as the device ID of the beacon from the signal received by the beacon receiver 21, reads the ID of the device itself from the storage device 24, and periodically transmits the information to the location information server 40. Processing unit 32, map display processing unit 33 for displaying maps such as floor plans received from location information server 40 by wireless communication device 22 and information received from command terminal 90 on display unit, input to input unit of touch panel display 25 An input content recognition unit 34 for judging and recognizing the content of the operation is provided.

Next, features of the image displayed on the screen of the display section executed by the display device 61 and the processing and functions based thereon will be described with reference to FIGS. 3 to 6. FIG.
3 shows an example of a floor plan displayed on the screen of the display device 61. As shown in FIG. In FIG. 3, the symbol D is a fire sensor mark, the symbol B is a beacon mark, and the symbol S is a self-protection firefighting unit possessing the portable information terminal 20. A mark of a terminal owner such as a member, a symbol F indicates a position where an abnormality (flame) has occurred, and an "x" indicates a location where damage has occurred. Also, the mark with the symbol M indicates a rescuer. Although the sensors and beacons are shown at different positions in FIG. 3, they may be installed at the same position. Although a mark simulating a person is displayed as the mark S in FIG. 3, a mark simulating a portable information terminal may be displayed.

A characteristic function of the display device 61 of the present embodiment is that when the cursor C is placed on the mark S of the self-defense firefighter displayed on the floor plan, as shown in FIG. This is a function that displays the terminal's contact information (telephone number and email address) and a QR code (registered trademark) that encodes the telephone number or email address in the form of a balloon. At the bottom of the balloon SB, there are provided a "Communication Permission" button CB for permitting communication from the portable information terminal 20 side and a "Close" button EB for closing the display of the balloon SB. . Instead of the display by the balloon SB, for example, a QR code or the like may be displayed in a pop-up and the corresponding member's mark S may be blinked.

By clicking the command button CB, the commander can permit the report from the portable information terminal (self-defense fire brigade member) corresponding to the balloon. As a result, for example, by looking at the floor plan and selecting the portable information terminal closest to the place where the fire broke out and permitting the report, multiple reports are made at the same time, which causes confusion in grasping the current situation. You can get the information you want.
Instead of displaying a two-dimensional code in the balloon SB and capturing it with the camera of the command terminal 90, when the cursor C is placed on the mail address displayed in the balloon SB and the mouse is clicked, the mail is automatically sent. can be

A "menu" button MB is displayed on the upper left of the screen of the display device 61. When the cursor C is placed on the "menu" button MB and the mouse is clicked, a list of work menus is displayed. There is a "simple report" in the list of the work menu. When "simple report" is selected by an input operation with a mouse or the like, a pop-up PA as shown in FIG. 5 is displayed. , a status report instruction mail (or an automated voice command) is sent to all portable information terminals displayed on the floor plan together with the floor plan information. It should be noted that the mobile information terminal 20 to which this instruction is transmitted may be limited to mobile information terminals owned by disaster prevention personnel such as self-defense firefighters and security guards.

The floor diagram of FIG. 5A shows a display example of the contents of a report displayed on the display device 61 when a report is received from the reporter.
When the portable information terminal 20 owned by the reporter receives the instruction to request a current status report from the display device 61, a screen for requesting a current status report as shown in FIG. When touched, an input screen as shown in FIG. 5(C) is displayed. On this screen, marks indicating "fire", "smoke", and "damage" are displayed at the bottom of the screen. A mark appears at the position where is released.

Although not shown, at the time of the above input, it is possible to input the level of the event, for example, one of three stages from 1 to 3. For example, the level input can be changed by the number of times the mark of the input target event displayed on the screen of the mobile information terminal 20 is tapped with a finger. The position and level of the event input by the portable information terminal 20 as described above are displayed on the floor map on the screen of the display device 61, as shown in FIG. 5(A). Since characters explaining the content of the mark are displayed in the pop-up PA, the person in charge of command can easily grasp the situation. Contents simply input on the mobile information terminal 20 can be displayed on the fire information server 40 or the command terminal 90 in a specified time zone and continuously displayed at specified time intervals in the specified time zone.

In addition, the reporter can input the range of the fire by touching the floor map on the screen of the portable information terminal 20 with a finger to draw a loop. ), a line indicating the input fire range FA is displayed on the screen of the display device 61 . Instead of displaying the line, the fire area FA may be painted out.

Furthermore, as shown in FIG. 6, the reporter can input the movement of the location of the fire by touching and moving the mark displayed on the floor map on the screen of the portable information terminal 20 with the finger. can. Furthermore, by switching the input items, it is also possible to input reports on the extent of fire, extent of smoke, extent of damage, persons requiring rescue, and impassability.
Also, when the commander moves the cursor to the mark representing the fire, smoke, or damage location instead of the mark S of the terminal holder already displayed on the floor map on the screen of the display device 61, the event The program of the display device 61 may be configured so that the information (attributes, telephone number, mail address, etc.) of the terminal owner who reported the occurrence of .

Next, the procedure of the disaster situation grasping process at the time of fire occurrence in the display device 61 constituting the disaster situation grasping system of the present embodiment will be described with reference to the flowchart shown in FIG. It should be noted that this disaster situation grasping process can be configured to be started when a fire occurrence is received from the fire receiver 60 or the mobile information terminal 20 .
When the display device 61 starts the disaster situation grasping process of FIG. 7, it first requests and receives the position information of all the portable information terminals 20 existing in the monitoring area from the position information server 40 (step S1). Next, the map information is read out from the storage device 62 (step S2), and the mark of the portable information terminal 20 (the owner's mark) is placed at the corresponding position on the map based on the position information of the portable information terminal 20 received in step S1. ) is displayed on the screen of the display unit of the display device 61 (step S3). At this time, based on the attribute of the terminal owner transmitted from the location information server 40, the display form of the mark is determined and displayed.

Next, it is determined whether or not a mark has been selected (step S4), and if it is determined that a mark has been selected (Yes), the owner's telephone number or e-mail address is sent from the storage device 62 or the location information server 40. , information such as a QR code in which the telephone number is coded (step S5), and the information is balloon-displayed on the screen of the display device 61 (step S6). Subsequently, it is determined whether or not the "permit communication" button CB on the screen of the display unit of the display device 61 has been operated (step S7). If it is determined that the "permit communication" button CB has been operated (Yes), transmits "communication permission" (step S8).
After that, since there is a report from the owner of the terminal who took in the QR code with the camera of the command terminal 90 and communicated, it is determined whether or not the communication from the portable information terminal 20 has been received (step S9). In step S10, display processing and the like are executed according to the received content.

As described above, according to the disaster situation grasping system of the present embodiment, a system having a fire information acquisition function as described above can be realized by simply adding or changing a slight function to existing equipment such as a fire receiver. be able to.
In addition, in an emergency, the commander (administrator, fire chief, security guard) who grasps the fire situation at the disaster prevention center and gives appropriate instructions to the self-defense firefighters uses a normal mobile information terminal such as a smartphone. It is possible to quickly and accurately grasp the situation by collecting information in real time from self-defense firefighters and security guards on site. In addition, self-defense firefighters and security guards can report the situation at the fire scene by simple terminal operation using a touch panel by carrying a portable information terminal with a predetermined disaster prevention application installed.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the scope of the invention. For example, in the above embodiment, a two-dimensional code such as a QR code is displayed on the display device 61 as a contact code including contact information for the owner of the portable information terminal. may be displayed. Further, in the above embodiment, the display device 61 performs display processing of information such as fires, but as shown in FIG. The device 60 may be configured to perform information display processing as shown in FIGS.

Further, in the above embodiment, a fire sensor is given as an example of the sensor connected to the receiver 60, but a smoke sensor or a gas sensor such as a CO gas sensor may be used. Further, in the above embodiment, a system using positioning by a beacon was exemplified as the position information system, but the position information system is not limited to this, and the position information system uses positioning by other methods such as IMES (Indoor Messaging System). It may be a system with
Furthermore, in the above embodiment, the case of application to a system for grasping the damage situation in the event of a fire was explained, but the present invention can also be used for a system for grasping the damage situation at the time of a disaster such as an earthquake or a terrorist attack. .

10 beacon (transmitter)
20 portable information terminal 40 location information server (server device)
41 database (transmitter installation position information storage means)
50 fire detector 60 fire receiver (receiver)
61 display device 62 storage device 63 input device 90 command terminal

Claims (7)

a receiver capable of receiving a detection signal from a sensor installed in a predetermined area;
a display device having a display unit and capable of displaying a map of the predetermined area;
Information transmitted by a mobile information terminal having a wireless communication device capable of receiving a signal from a transmitter installed in the predetermined area and transmitting transmitter information including identification information of the transmitter and its own identification information and a server capable of identifying the current position of the mobile information terminal and transmitting mobile terminal position information indicating the position based on,
The display device
a disaster situation display means for displaying a disaster mark at a disaster occurrence location on the map based on the received detection signal;
mobile terminal position display means for displaying a predetermined mark at a mobile terminal stay position on the map based on the mobile terminal position information acquired from the server;
code display means for displaying a contact code including contact information of the portable information terminal corresponding to the predetermined mark on the display unit when the predetermined mark displayed on the display screen of the display device is selected; ,
A disaster situation grasping system characterized by comprising: 2. The disaster situation grasping system according to claim 1, wherein the contact code is a two-dimensional code recognizable by an information terminal having an image capturing function and a code decoding function. The portable information terminal is capable of being input by the owner of information relating to a disaster situation in the predetermined area and transmitted to the receiver or the server,
3. The display device according to claim 1, wherein the display device is capable of displaying the disaster situation on the display screen of the display unit based on the information about the disaster situation obtained from the receiver and/or the server. The disaster situation grasping system described. The information about the disaster situation transmitted by the mobile information terminal includes information indicating the type and degree of damage,
The display device is capable of displaying the type and degree of damage on the display screen of the display unit based on the information indicating the type and degree of damage acquired from the receiver and/or the server. The disaster situation grasping system according to claim 3. The display device displays the type and degree of damage based on the information indicating the type and degree of damage acquired from the receiver and/or the server, and displays the type and degree of damage on the map. 5. The disaster situation grasping system according to claim 4, characterized in that it can be displayed in the vicinity of the display position of the terminal owner's mark. The attribute information of the owner of the portable information terminal is stored in the receiver or the server, and the display device displays the attribute information of the owner of the portable information terminal based on the received identification information of the portable information terminal. can be displayed on the display screen of the display unit. The display device has a form in which the mark of the holder having the predetermined qualification or the mark of the portable information terminal owned by the holder is different from the mark of the holder without the predetermined qualification or the portable information terminal owned by the holder. 7. The disaster situation grasping system according to claim 6, characterized in that it can be displayed on the display unit by .

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