Disaster response support system and disaster response support program

Abstract

We will build a disaster response support system that can provide detailed disaster information in real time to support operational organizations working on the front lines of disaster-stricken areas. [Solution] The disaster response activity support system 10 consists of a server 12 and Camera 28, The disaster response support system 10 is configured to include a mobile terminal 18 equipped with a display 14 and a GNSS receiver 16, which can communicate with a server. Image captured by camera 28 The reality of the disaster-stricken area When you obtain Based on GNSS location information, a virtual image of the 3D shape of buildings in existing 3D city model data is created. Retrieved from server 12 and displayed on display 14. The AR display unit 20 is configured to display superimposed images, and disaster information is associated with the 3D shape of the building. acquisition Disaster information configured to be acquisition It has part 22 and The AR display unit 20 processes the disaster information acquired by the disaster information acquisition unit 22 and displays it on the display 14.

Description

Technical Field

[0001] The present invention relates to a system and a program for supporting disaster response activities.

Background Art

[0002] As a basic network system responsible for the mutual circulation of disaster prevention information, SIP4D has been developed in the Cabinet Office's Strategic Innovation Creation Program. Various information is aggregated in SIP4D, such as the disaster prevention information systems of about two-thirds of the prefectures being connected. And various disaster prevention information aggregated in SIP4D is provided to disaster response agencies by ISUT-SITE operated by ISUT (Disaster Information Aggregation Support Team), an agency of the Cabinet Office.

[0003] Also, as a system for providing information to on-site agencies operating in the disaster area, Patent Document 1 discloses a disaster support system having a mobile terminal that displays the current location, registered disaster points, and their disaster situation information on a simple two-dimensional map.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] While the information shared on ISUT-SITE provides useful maps for understanding the overall extent of the disaster, it does not cover the detailed information necessary to support operational agencies working on the front lines. Furthermore, its lack of real-time capabilities prevents it from being a system that can be used on the front lines. In addition, the disaster support system described in Patent Document 1 merely displays disaster information for specific registered points on a simplified two-dimensional map on a mobile device. Therefore, in disaster areas such as those affected by the Great East Japan Earthquake, where a wide range of buildings were swept away by tsunamis and turned into piles of rubble, it may not function effectively in understanding the current location and the surrounding disaster situation. The present invention has been made in view of the above problems, and aims to construct a disaster response activity support system that can provide detailed disaster information in real time to support operational agencies working on the front lines at disaster sites. [Means for solving the problem]

[0006] The present invention solves the above problems by providing a disaster response activity support system comprising a server and a mobile terminal equipped with a display and a GNSS receiver that can communicate with the server, the system comprising an AR display unit configured to superimpose virtual images of the 3D shapes of buildings from existing 3D city model data onto a real image of the disaster area visible through the display of the mobile terminal, based on GNSS location information, and a disaster information input unit configured to input disaster information in association with the virtual images of the 3D shapes of buildings.

[0007] This disaster response support system overlays virtual images of the 3D shapes of buildings from existing 3D city model data onto a real-world image of the disaster area visible on the mobile device's display. This allows mobile device users to intuitively and easily grasp the situation of the disaster area before the disaster, even if buildings have collapsed or disappeared due to tsunamis, landslides, fires, etc. It also makes it easy for mobile device users to pinpoint their current location at the disaster site. Furthermore, since the system is configured to input disaster information in association with the virtual images of the 3D shapes of buildings, the target of disaster information input is clear, and the creation and editing of disaster information is easy. Even at disaster sites where buildings have collapsed or disappeared, mobile device users can create disaster information while imagining the situation of the disaster area before the disaster, which also makes the creation and editing of disaster information easy. In addition, since the disaster information created or edited in association with the virtual images of the 3D shapes of buildings can be shared via a server, detailed disaster information obtained on the front lines of the disaster site can be provided in real time to other mobile device users working in the same area. Furthermore, detailed disaster information obtained on the front lines can be shared in real time not only among personnel from the same operational unit but also among personnel from different operational units. This reduces the likelihood of wasted work such as confirming duplicate disaster situations and minimizes the chances of missing information about the disaster.

[0008] Furthermore, the server may be configured with multiple portable servers, and the 3D city model data may be divided and stored on multiple portable servers. 3D city model data covering all of Japan is large in volume, and the system may not function smoothly in disaster-stricken areas where communication is restricted. By storing the 3D city model data corresponding to the activity area on each portable server, and bringing the portable servers to the activity area or its vicinity, the system can function smoothly even in disaster-stricken areas where communication is restricted.

[0009] Furthermore, it would be desirable for the mobile device to be a head-mounted display that allows for the creation of disaster information via voice input. At disaster sites, personnel from operational agencies often wear gloves, making it difficult to input information into mobile devices with their fingers. If the mobile device is a head-mounted display that allows for the creation of disaster information via voice input, it would be possible to input disaster information hands-free by voice while viewing a virtual 3D image of the building's shape superimposed on the real-world image, thereby facilitating the input of disaster information.

[0010] Furthermore, it would be beneficial if the GNSS receiver in the mobile device were compatible with QZSS. By utilizing QZSS (Quasi-Zenith Satellite System), the accuracy of GNSS position information can be improved, and the placement accuracy of the virtual 3D shapes of buildings superimposed on the real-world image can be enhanced.

[0011] Furthermore, the present invention solves the above problems by providing a disaster response support program that causes the computer of a disaster response support system, which has a server and a mobile terminal equipped with a display and a GNSS receiver and capable of communicating with the server, to function as an AR display unit configured to superimpose virtual images of the 3D shapes of buildings from existing 3D city model data onto a real image of the disaster area viewed through the display of the mobile terminal, based on GNSS location information, and a disaster information input unit configured to input disaster information in association with the virtual images of the 3D shapes of buildings. [Effects of the Invention]

[0012] According to the present invention, a disaster response support system can be constructed that can provide detailed disaster information in real time to support operational organizations working on the front lines of disaster sites. [Brief explanation of the drawing]

[0013] [Figure 1] A schematic diagram showing the configuration of the disaster response support system according to the first embodiment of the present invention. [Figure 2]This diagram shows a schematic, enlarged example of an AR image displayed on the mobile device screen of the disaster response support system. [Figure 3] A schematic diagram showing the configuration of the disaster response support system according to the second embodiment of the present invention. [Figure 4] A schematic diagram showing the configuration of the disaster response support system according to the third embodiment of the present invention. [Modes for carrying out the invention]

[0014] Figure 1 shows the configuration of a disaster response support system 10 according to a first embodiment of the present invention. The disaster response support system 10 comprises a server 12 and a mobile terminal 18 equipped with a display 14 and a GNSS receiver 16 that can communicate with the server. The disaster response support system 10 includes an AR (augmented reality) display unit 20 configured to superimpose virtual images of the 3D shapes of buildings from existing 3D city model data onto a real image of the disaster area viewed via the display 14 of the mobile terminal 18, based on GNSS location information, and a disaster information input unit 22 configured to input disaster information in association with the virtual images of the 3D shapes of buildings. In this invention, the term "building" is used to include not only buildings such as houses, buildings, and warehouses, but also structures such as bridges, sluice gates, and roads.

[0015] Server 12 is equipped with a 3D city model data storage unit 24 that stores 3D city model data. For example, PLATEAU, provided by the Ministry of Land, Infrastructure, Transport and Tourism, can be used as 3D city model data. In PLATEAU, the Level of Details (LOD) is set from 0 to 4 depending on the level of detail of the 3D city model. LOD1 to LOD4 contain building height information. LOD1 data is easy to use because it is 3D data with height information and has a small data size. Server 12 is also equipped with a disaster information storage unit 26 that stores disaster information. It is preferable that Server 12 be portable.

[0016] The mobile terminal 18 is a general-purpose terminal such as a smartphone, a tablet PC, a PDA, etc. Note that the mobile terminal 18 may be a dedicated terminal for the disaster response activity support system 10. In FIG. 1, a smartphone-type mobile terminal is illustrated. Also, in FIG. 1, three mobile terminals 18 are illustrated, but the number of mobile terminals 18 included in the disaster response activity support system 10 is not limited. Usually, in disaster response activities, a large number of mobile terminals 18 are used. Note that among the plurality of mobile terminals 18 included in the disaster response activity support system 10, smartphones, tablet PCs, PDAs, dedicated terminals, etc. may be mixed. The mobile terminal 18 includes a camera 28, and a real image of the disaster area captured by the camera 28 is visible to the user via the display 14. The display 14 is a touch panel, and disaster information can be input by an input operation with a finger. Also, the mobile terminal 18 includes a microphone 30, and disaster information can be input by voice input. The disaster information input by the mobile terminal 18 is transmitted to the server 12 and stored in the disaster information storage unit 26.

[0017] The disaster information stored in the disaster information storage unit 26 of the server 12 can be viewed on each mobile terminal 18. For example, the following disaster information is displayed on the display 14 of each mobile terminal 18. (1) Basic information of each building · Construction year and structure of the building (wooden / reinforced concrete, etc.) · Number of household members (2) Safety information · Search history of the actual operation agency · Safety confirmation information (~ confirmed at the evacuation shelter, etc.) (3) Evacuation shelter information [[ID=2)))· Availability status of the designated evacuation shelter · Information on non-designated evacuation shelters (4) Damage information · Damage information of the building · Damage information other than the building (damage to roads, bridges, slopes, etc.) (5) Activity history (history of the searching side) · Activity history of each agency (searched area, etc.) · Location of the activity base (where the commander is) · Scheduled activity locations, etc.

[0018] The GNSS receiver 16 is compatible with GNSS (Global Navigation Satellite System) such as GPS, QZSS, Galileo, BeiDou, Gagan, GLONASS, etc. The GNSS receiver 16 is preferably compatible with QZSS (Quasi-Zenith Satellite System). Also, the GNSS receiver 16 may use artificial satellites of different positioning systems in combination. For example, the GNSS receiver 16 may use GPS artificial satellites and QZSS artificial satellites in combination. Note that GNSS includes types such as single-point positioning, DNSS (Differential GNSS), RTK (Real Time Kinematic), etc. The error of single-point positioning is about 10 m, while the error of RTK is several centimeters. By using high-precision GNSS such as RTK, it is possible to accurately place and superimpose the virtual image of the buildings in the 3D city model data on the actual image of the disaster area. In the case of RTK, the GNSS receiver 16 serves as a rover station for RTK. Also, a fixed reference station for RTK is installed at the disaster site. Also, network RTK or PPP-RTK may be used.

[0019] The damage situation estimation system 10 includes a computer program for causing a computer or computer system constituting itself to function as the AR display unit 20 and the disaster information input unit 22. The AR display unit 20 and the disaster information input unit 22 are provided in the mobile terminal 18. Note that one or both of the AR display unit 20 and the disaster information input unit 22 may be provided in the server 12.

[0020] The AR (Augmented Reality) display unit 20 is configured to acquire a virtual image of the 3D shape of a building corresponding to the location information obtained by the GNSS receiver 16 of the mobile terminal 18 from the 3D city model data storage unit 24 of the server 12, and to superimpose it onto the real image of the disaster area captured by the camera 28 and displayed on the display 14, as shown in Figure 2. The mobile terminal 18 may have pre-downloaded 3D city model data corresponding to the user's area of ​​responsibility from the 3D city model data storage unit 24 of the server 12. In this case, the AR display unit 20 acquires a virtual image of the 3D shape of a building corresponding to the location information from the 3D city model data stored in the mobile terminal 18 and superimposes it on the display 14. The thick lines shown in Figure 2 represent the virtual image of the building. This virtual image is obtained from PLATEAU's LOD1 data. In PLATEAU's LOD1, buildings are represented as solids. In the example shown in Figure 2, the AR display unit 20 displays a virtual image of the 3D shape of the building in a simple form, such as a frame that shows only the outline of the building. In the area in front of the disaster site exemplified in Figure 2, the building has been destroyed by the tsunami, and overturned construction machinery and rubble are left lying around.

[0021] The disaster information input unit 22 is configured to input disaster information such as (1) to (5) above, associated with a virtual image of the 3D shape of each building. Specifically, the display 14 displays an input form for disaster information associated with the virtual image of the 3D shape of each building. The input form may also be displayed by tapping or clicking on the 3D shape of each building displayed on the display 14. Users of the mobile terminal 18 can input disaster information into the input form by using their finger on the touch panel display 14 or by voice input. Basic information for each building, such as the year of construction, structure, and number of household members, as described in (1) above, may be automatically entered based on data from local governments, etc. The disaster information input unit 22 can also edit disaster information that has been created and saved on the mobile terminal 18. The disaster information input unit 22 can also retrieve and edit disaster information stored in the disaster information storage unit 26 of the server 12. When editing disaster information retrieved from the server 12, editing privileges may be restricted based on attributes such as the operational organization, activities, and activity area to which the user of the mobile terminal 18 belongs.

[0022] Furthermore, the disaster response support system 10 is configured to prioritize the provision of information of high importance according to the nature of various disaster relief activities at the disaster site. Specifically, when the mobile terminal 18 is powered on, the system is configured to change the available basic menu by inputting attributes such as the operational organization to which the user of the mobile terminal 18 belongs and the activities in which they are responsible. For example, if the user is a member of the fire department or the Self-Defense Forces, information items related to saving lives may be displayed preferentially, and if the user is an employee of ECH-FORCE (Ministry of Land, Infrastructure, Transport and Tourism), information items related to assessing damage to infrastructure such as roads may be displayed preferentially.

[0023] Next, the method of using the disaster response activity support system 10 will be explained. First, the user of the mobile terminal 18 turns on the mobile terminal 18 and enters attributes such as the operational organization to which they belong and the activities they are in charge of. This changes the basic menu that is provided, and information items corresponding to the attributes are displayed preferentially. Next, the user creates and edits disaster information at the disaster site. Specifically, the user first takes a picture of the disaster site with the camera 28. This displays a real image of the disaster site on the display 14. Next, the user activates the AR display unit 20 by inputting with their finger on the display 14 or by voice input. The AR display unit 20 may be configured to activate automatically. The AR display unit 20 overlays a virtual image of the 3D shape of the building corresponding to the location information obtained by the GNSS receiver 16 onto the real image of the disaster site. Next, the user activates the disaster information input unit 22 by inputting with their finger on the display 14 or by voice input. The disaster information input unit 22 may also be configured to activate automatically. The disaster information input unit 22 displays an input form for disaster information associated with the virtual image of the 3D shape of each building. Next, the user inputs disaster information associated with each building in the virtual image by using finger input on the touch panel display 14 or by voice input.

[0024] As illustrated in Figure 2, even when buildings have collapsed or disappeared due to tsunamis, landslides, fires, etc., users of the mobile terminal 18 can intuitively and easily grasp the situation of the disaster site before the disaster. Furthermore, it is easy for users of the mobile terminal 18 to pinpoint their current location at the disaster site. In addition, since the system is configured to input disaster information in association with a virtual image of the 3D shape of the building, the target of disaster information input is clear, and the creation and editing of disaster information is easy. Even at disaster sites where buildings have collapsed or disappeared, users of the mobile terminal 18 can input disaster information while visualizing the situation of the disaster site before the disaster, thus also facilitating the creation and editing of disaster information. If buildings have not collapsed or disappeared, it is possible to confirm that the buildings remain in their pre-disaster state by comparing them with the virtual image of the 3D shape of the building. Even when buildings remain in their pre-disaster state, the virtual image of the 3D shape of the building is displayed in a simple form, such as a frame showing only the outline of the building, making it easy to distinguish between the virtual image of the 3D shape of the building and the actual image of the building.

[0025] Once the creation or editing of disaster information is complete, the user operates the mobile terminal 18 to send the disaster information to the server 12. If the creation or editing of disaster information cannot be continued due to the situation at the disaster site or time constraints, the disaster information being created or edited may be temporarily saved to the mobile terminal 18, and then the creation or editing of the disaster information may be resumed before sending it to the server 12. Even if the communication status with the server 12 is not good, if 3D city model data corresponding to the user's area of ​​responsibility has been downloaded to the mobile terminal 18 in advance, it is possible to create or edit disaster information at the disaster site. In such cases as well, the created or edited disaster information may be temporarily saved to the mobile terminal 18, and then sent to the server 12 after the communication status is restored.

[0026] Disaster information transmitted to server 12 is stored in the disaster information storage unit 26 of server 12. Disaster information created in association with a virtual image of the 3D shape of a building is shared with each mobile terminal 18 via server 12. This allows detailed disaster information obtained at the front lines of the disaster site to be provided in real time to users of other mobile terminals 18 working in the same area. This reduces the likelihood of redundant work such as checking the same disaster situation and the possibility of missing information on the disaster situation. In addition, it is possible to obtain and edit disaster information created on other mobile terminals 18 via server 12, making it easier to hand over disaster response activities. When editing disaster information obtained from server 12, editing permissions may be restricted based on attributes such as the operational organization to which the user of the mobile terminal 18 belongs, the content of their activities, and the area of ​​activity. Furthermore, detailed disaster information obtained at the front lines can be shared in real time not only among members of the same operational organization but also among members of different operational organizations such as fire departments, police, Self-Defense Forces, and Japan Coast Guard, contributing to strengthening cooperation between operational organizations. Furthermore, it is possible to provide disaster information not only to operational organizations but also to external parties via the server 12 of the disaster response support system 10. For example, detailed disaster information obtained at the front lines of the disaster site can be provided to local governments, etc., which will contribute to strengthening cooperation between operational organizations and local governments, etc. In addition to the disaster information described in (1) to (5) above, the disaster information shared or provided may also include images of the actual disaster area taken by the camera 28 of the mobile terminal 18, or images in which virtual images of the 3D shapes of buildings are superimposed on the actual disaster area.

[0027] Next, a second embodiment of the present invention will be described. Figure 3 shows the configuration of the disaster response support system 30 of the second embodiment. The disaster response support system 30 is configured with a server having multiple portable servers. More specifically, in addition to server 12, portable servers 32 and 34 are provided. Portable servers 32 and 34 are interposed between server 12 and each mobile terminal 18, and each mobile terminal 18 is configured to communicate with portable servers 32 and 34. Although two portable servers 32 and 34 are shown in Figure 3, the number of portable servers 32 and 34 included in the disaster response support system 30 is not limited, and a configuration with three or more portable servers is also possible. Portable server 32 is equipped with a 3D city model data storage unit 24A and a disaster information storage unit 26A. Portable server 34 is equipped with a 3D city model data storage unit 24B and a disaster information storage unit 26B. The 3D city model data stored in the 3D city model data storage unit 26 of server 12 is divided and stored in 3D city model data storage unit 24A and 3D city model data storage unit 24B. Portable servers 32 and 34 can communicate with server 12. Note that the portable servers 32 and 34 may also be configured to communicate with each other. Disaster information created and edited by each mobile terminal 18 is stored in either the disaster information storage unit 26A of portable server 32 or the disaster information storage unit 26B of portable server 34. Disaster information stored in disaster information storage units 26A and 26B is also stored in the disaster information storage unit 26 of server 12. Note that disaster information stored in disaster information storage unit 26A may also be stored in disaster information storage unit 26B via server 12. Disaster information stored in disaster information storage unit 26B may also be stored in disaster information storage unit 26A via server 12. Furthermore, by communicating between the portable server 32 and the portable server 34 without going through server 12, disaster information stored in disaster information storage unit 26A may also be stored in disaster information storage unit 26B, and disaster information stored in disaster information storage unit 26B may also be stored in disaster information storage unit 26A. The other configurations are the same as those of the disaster response activity support system 10 of the first embodiment, so the same components will be given the same reference numerals as in the first embodiment and will not be described.

[0028] Next, we will explain how to use the disaster response support system 30. The 3D city model data covering all of Japan is very large in volume, and the system may not function smoothly in disaster-stricken areas where communication is restricted. In the second embodiment, the 3D city model data covering all of Japan is stored in the portable servers 32 and 34 for the activity areas they are responsible for, and the portable servers 32 and 34 are brought to each activity area or a nearby area to construct the disaster response support system 30. This allows the system to function smoothly even in disaster-stricken areas where communication is restricted.

[0029] Next, a third embodiment of the present invention will be described. Figure 4 shows the configuration of the disaster response activity support system 40 of the third embodiment. The disaster response activity support system 40 is configured to have a mobile terminal 42 which is a head-mounted display. In this invention, the term head-mounted display is used to include goggle-type, helmet-type, and glasses-type AR glasses and smart glasses. In Figure 4, only one mobile terminal 42 which is a head-mounted display is shown, but the number of mobile terminals 42 which are head-mounted displays included in the disaster response activity support system 40 is not limited. The mobile terminals included in the disaster response activity support system 40 may include a mix of head-mounted displays, smartphones, tablet PCs, PDAs, dedicated terminals, etc. Also, all mobile terminals may be head-mounted displays.

[0030] The mobile terminal 42 includes a display 44, a GNSS receiver 46, and a camera 48. The mobile terminal 42 is a video-transmissive or optical-transmissive head-mounted display. In the case of the video-transmissive type, the user can view a real-world image of the disaster area captured by the camera 48 through the display 44. In the case of the optical-transmissive type, the display 44 is composed of a half-mirror, and the user can view a real-world image of the disaster area through the half-mirror. The mobile terminal 42 also includes a microphone 50, allowing disaster information to be input via voice input. Furthermore, the mobile terminal 42 includes an AR display unit 20 and a disaster information input unit 22, similar to the first embodiment. Note that one or both of the AR display unit and the disaster information input unit may be provided on the server 12. The other configurations are the same as those of the disaster response activity support system 10 of the first embodiment, so the same components will be denoted by the same reference numerals as in the first embodiment and their description will be omitted.

[0031] Next, the method of using the disaster response activity support system 40 will be explained. At disaster sites, personnel of operational organizations often wear gloves, making it difficult to input information into a mobile device with their fingers. In contrast, in the third embodiment, the mobile device 42 is a head-mounted display, and the user of the mobile device 42 can input disaster information hands-free by voice while viewing a virtual image of the 3D shape of a building superimposed on a real image of the disaster site, thereby contributing to the ease of inputting disaster information.

[0032] Although Figure 4 shows a configuration with only one server 12, similar to Figure 1 of the first embodiment, the configuration may also include multiple servers, as in the second embodiment, or some or all of the mobile terminals may be head-mounted displays.

[0033] Furthermore, in the first to third embodiments, the virtual image of the 3D shape of the building is displayed in a simple form such as a frame that shows only the outline of the building. However, the virtual image of the 3D shape of the building may also be displayed in the form of a surface that shows the exterior of the building. In this case as well, it is preferable that the surface showing the exterior of the building be displayed as a semi-transparent image, as this makes it easy to distinguish between the virtual image of the 3D shape of the building and the actual image of the building.

[0034] Furthermore, while PLATEAU's LOD1 data is given as an example of existing 3D city model data in the first to third embodiments, PLATEAU's LOD2 to LOD4 data may be used. In addition, 3D city model data other than PLATEAU may be used.

[0035] Furthermore, in the first to third embodiments, the mobile terminals 18 and 42 have built-in GNSS receivers 16 and 46, but they may also be configured to include an external GNSS receiver in addition to the built-in GNSS receiver to support PPP-RTK, etc. Alternatively, the mobile terminals may not have a built-in GNSS receiver and may acquire GNSS location information only using an external GNSS receiver.

[0036] Furthermore, while the first to third embodiments show examples in which one disaster response support system 10, 30, and 40 is used, multiple disaster response support systems may be provided, and these multiple disaster response support systems may be configured to communicate with an upstream command post operation system. Moreover, multiple command post operation systems may be provided, and each command post operation system may be configured to communicate with multiple disaster response support systems. In this case, each command post operation system may be provided for each operational organization, such as the fire department, police, Self-Defense Forces, and Japan Coast Guard, and frontline disaster information may be shared among different operational organizations via the command post operation system. [Industrial applicability]

[0037] This invention can be used in systems to support disaster response activities. [Explanation of Symbols]

[0038] 10, 30, 40 Disaster Response Activity Support System Servers 12, 32, and 34 14, 44 displays 16, 46 GNSS receiver 18, 42 Mobile devices 20 AR display section 22 Disaster Information Creation Department 24, 24A, 24B 3D city model data storage unit 26, 26A, 26B Disaster Information Storage Unit 28, 48 Camera 30, 50 microphones

Claims

1. Server and A disaster response support system comprising a portable terminal equipped with a display and a GNSS receiver and capable of communicating with the server, An AR display unit is configured to overlay a virtual image of the 3D shape of buildings from existing 3D city model data onto a real image of the disaster area visible through the display of the mobile terminal, based on GNSS location information. A disaster response support system comprising: a disaster information input unit configured to input disaster information in association with the virtual image of the 3D shape of the aforementioned building.

2. In claim 1, The server is configured to have multiple portable servers, A disaster response support system in which the 3D city model data is divided and stored on multiple portable servers.

3. In claim 1 or 2, The aforementioned mobile terminal is a head-mounted display, and is a disaster response support system capable of creating disaster information via voice input.

4. In claim 1 or 2, The GNSS receiver of the aforementioned mobile terminal is a disaster response support system compatible with QZSS.

5. A computer for a disaster response support system, comprising a server and a mobile terminal equipped with a display and a GNSS receiver capable of communicating with the server, An AR display unit is configured to overlay a virtual image of the 3D shape of buildings from existing 3D city model data onto a real image of the disaster area visible through the display of the mobile terminal, based on GNSS location information. A disaster information input unit configured to input disaster information in association with the virtual image of the 3D shape of the building, A disaster response support program designed to enable effective operation.

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