Refugee support devices and methods

Abstract

To provide an evacuation support device and a method that guide evacuation according to a situation even when it is difficult to evacuate by an assumed evacuation method.SOLUTION: A device includes: a storage unit 102 that stores a learned model that stores a relationship between attribute information of a user and training data indicating a position moved and the elapsed time in the case of an evacuation drill in which the user follows an evacuation scenario; a first transmission unit 1051 that transmits, in response to the occurrence of a disaster, an evacuation route during an evacuation drill to a terminal device 1 of the user; an acquisition unit 1061 that acquires evacuation data indicating the position and elapsed time at which the user evacuates when a disaster occurs and the user starts evacuating; a determination unit 104 that determines whether or not at least one of the location and the elapsed time differs from the location and the elapsed time indicated by the user's evacuation data by using a learned model, exceeding a reference level; and a second transmission unit 1052 that transmits guidance information to the user terminal when the reference level is exceeded.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an evacuation support device and an evacuation support method. [Background Art]

[0002] When a disaster such as a fire occurs in a facility, people may move along an evacuation route to evacuate safely. In addition, in order to enable safe evacuation, an evacuation drill assuming the occurrence of a disaster may be performed to make people understand the evacuation route in advance in some cases. Patent Document 1 discloses a system that guides evacuation routes by causing evacuees to display evacuation guidance information on a display unit of a mobile terminal when a disaster occurs. [Prior Art Literature] [Patent Literature]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2021-071925 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] However, even if an evacuation route is displayed on a mobile terminal, if there is an obstacle on the evacuation route, it may be difficult to evacuate along the displayed evacuation route in some cases. In addition, even if an evacuee tries to move along the displayed evacuation route, evacuation as expected may not be possible in some cases, for example, the evacuee may injure a leg during evacuation and cannot evacuate using stairs.

[0005] The present invention has been made in view of such circumstances, and an object of the present invention is to provide an evacuation support device and an evacuation support method capable of providing evacuation guidance according to the situation even when evacuation by an expected evacuation method is difficult. [Means for Solving the Problem]

[0006] To solve the above-mentioned problems, one aspect of the present invention is an evacuation support device comprising: a storage unit that stores a trained model which has learned the relationship between user attribute information and training data showing the location and elapsed time when the user performs an evacuation drill according to an evacuation scenario; a first transmission unit that transmits the evacuation route during the evacuation drill to the user's terminal device in response to the occurrence of a disaster; an acquisition unit that acquires evacuation data showing the location and elapsed time to which the user evacuates when an evacuation begins after a disaster occurs; a determination unit that uses the trained model to determine whether at least one of the location and elapsed time shown in the user's evacuation data differs by more than a standard level; and a second transmission unit that, if it is determined that at least one of the location and elapsed time exceeds the standard level, transmits guidance information corresponding to the exceedance of the standard level to the terminal device.

[0007] Furthermore, one aspect of the present invention is an evacuation support method comprising: a storage unit storing a trained model which has learned the relationship between user attribute information and training data showing the location and elapsed time when the user performs an evacuation drill according to an evacuation scenario; a first transmission unit transmitting the evacuation route during the evacuation drill to the user's terminal device in response to the occurrence of a disaster; an acquisition unit acquiring evacuation data showing the location and elapsed time to which the user evacuates when an evacuation begins after a disaster occurs; a determination unit using the trained model to determine whether at least one of the location and elapsed time shown in the user's evacuation data differs by more than a standard level; and a second transmission unit transmitting guidance information corresponding to the exceedance of the standard level to the terminal device if it has determined that at least one of the location and elapsed time exceeds the standard level. [Effects of the Invention]

[0008] As explained above, this invention makes it possible to provide evacuation guidance tailored to the situation, even when evacuation is difficult using the assumed evacuation method. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic block diagram showing the configuration of an evacuation support system S using an evacuation support device 10 according to one embodiment of the present invention. [Figure 2] This figure shows an example of training data. [Figure 3] This is a flowchart illustrating the operation of the evacuation support device 10 during the learning phase. [Figure 4] This is a flowchart illustrating the operation of the evacuation support device 10 during the execution phase. [Modes for carrying out the invention]

[0010] The following describes an evacuation support device according to one embodiment of the present invention with reference to the drawings. Figure 1 is a schematic block diagram showing the configuration of an evacuation support system S using an evacuation support device 10 according to one embodiment of the present invention. The evacuation support system S is configured to communicate via a network NW with multiple user terminals (1a, 1b), multiple support staff terminals (2a, 2b), the disaster prevention system 3, and the evacuation support device 10.

[0011] User terminals 1a and 1b may be smartphones, mobile phones, tablets, etc. If user terminals 1a and 1b are not specifically distinguished, they may simply be referred to as user terminal 1. User terminal 1 is carried by a user within the facility. The facility may be an office building, school, shopping complex, theme park, or public building. In such facilities, evacuation routes are established for safe evacuation in the event of a disaster. There may be multiple types of evacuation routes depending on the floor or location of the rooms. User terminal 1 is assigned individual identification information (e.g., terminal ID). In this diagram, we will explain the case where there are two user terminals 1, but there may be one, or three or more.

[0012] Support staff terminals 2a and 2b may be smartphones, mobile phones, tablets, etc. If support staff terminals 2a and 2b are not specifically identified, they may simply be referred to as support staff terminal 2. Support staff terminal 2 is carried by those who assist in the evacuation of people who are deemed to need rescue in the event of a disaster at the facility, or by those who assist in the rescue or evacuation of people remaining inside the facility. Support personnel may be firefighters, disaster prevention personnel, security guards, or any other type of person. In this diagram, the support staff terminal 2 is shown as having two terminals, but it may also be one terminal or three or more terminals.

[0013] Disaster Prevention System 3 detects whether or not a disaster has occurred at the facility and, if a disaster has occurred, issues an alert detailing the nature of the disaster. Disaster Prevention System 3 is, for example, a fire monitoring system. A monitoring device installed in the disaster prevention monitoring room receives detection results from multiple fire detectors installed in different locations within the facility. Based on these detection results, it identifies the source of the fire and the areas where flames or smoke are present. The fire monitoring system also uses the building's public address system and emergency bells to alert the public about the fire situation and the need for evacuation, based on the identified fire source and the location of flames or smoke. Furthermore, the fire monitoring system activates fire extinguishing equipment such as sprinklers and fire doors depending on the disaster situation. Furthermore, disaster prevention system 3 may detect that a disaster has occurred based on an alert signal regarding the disaster transmitted from the system that transmits earthquake early warnings provided by the Japan Meteorological Agency.

[0014] The evacuation support device 10 includes a communication unit 101, a storage unit 102, a learning unit 103, a determination unit 104, a notification unit 105, and a control unit 106.

[0015] The communication unit 101 communicates with the user terminal 1, the support staff terminal 2, and the disaster prevention system 3 via the network NW.

[0016] The storage unit 102 stores various types of data. The storage unit 102 includes a training data storage unit 1021, a learning data storage unit 1022, and a scenario data storage unit 1023. The storage unit 102 is constituted by a storage medium, for example, a HDD (Hard Disk Drive), a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), a RAM (Random Access read / write Memory), a ROM (Read Only Memory), or any combination of these storage media. For the storage unit 102, for example, a non-volatile memory can be used.

[0017] The training data storage unit 1021 stores training data indicating the moved position and elapsed time when a user conducts an evacuation drill in accordance with an evacuation scenario. The evacuation drill may be regularly implemented at a facility. When implementing an evacuation drill, the user undergoing the evacuation drill carries the user terminal 1 and performs the evacuation drill. Here, attribute information is assigned to users in advance. Any attribute information can be used as long as it is capable of classifying users into a plurality of different groups. The attribute information may be, for example, information indicating whether the user is a wheelchair user, whether the user is an elderly person, or the like, or may be information indicating a place where the user usually stays in the facility.

[0018] When the user is a wheelchair user, an evacuation route that allows evacuation even when using a wheelchair can be guided. When the user is an elderly person, a route that does not require using stairs as much as possible, a route equipped with handrails that is easy to walk on, a route that has a small number of steps and is sloped, or the like can be guided. Furthermore, if the user's usual location is used as attribute information, it becomes possible to understand that they have received evacuation drills starting from their usual location, and to guide them along evacuation routes starting from their usual location. If the facility is an office building, the floor or seat that the user uses while working may be somewhat fixed, and that seat can be registered as their usual location. If the facility is a school, the classroom that the user usually uses when attending classes can be registered as their usual location.

[0019] Figure 2 shows an example of training data. The training data includes user attribute information, location, and elapsed time. Attribute information is pre-assigned to each user when they register. The location refers to the position within the facility. The location can be the current location measured by the positioning function installed in user terminal 1. The elapsed time is the time elapsed from the moment an alarm is issued and an evacuation order is given in the disaster prevention system 3. The starting point for this elapsed time may be the moment when the evacuation support device 10 receives the evacuation order issued by the disaster prevention system 3, or the moment when the evacuation support device 10 sends scenario data to each user terminal 1.

[0020] In this way, by accumulating training data, the relationship between the trajectory of the user's position from the start to the end of an evacuation drill and the elapsed time at that position is accumulated. Generally, in an evacuation drill, the evacuation route is explained to the user in advance, and the user moves (evacuates) along that route. Also, since no actual disaster occurs in an evacuation drill, the evacuation route is properly secured, there are no obstacles, and generally there are no construction sites. Furthermore, since no actual disaster occurs in an evacuation drill, users can move without suffering any injuries caused by a disaster (such as injuring their leg from falling objects). Therefore, for each user attribute, the position and elapsed time when they could evacuate successfully can be determined, and this can be used as a standard for normal conditions. In addition, since the position and elapsed time can be determined for each attribute, it can be estimated that users with the same attributes can evacuate to roughly the same position and within roughly the same time.

[0021] The learning data storage unit 1022 stores a trained model that has learned the relationship between user attribute information and training data showing the location and elapsed time when the user performs an evacuation drill according to an evacuation scenario. Such a trained model is a trained model generated by the learning unit 103, which will be described later.

[0022] The scenario data storage unit 1023 stores scenario data. Scenario data represents evacuation routes defined for each user's attribute information. For example, scenario data might define an evacuation route from a user's usual location to their evacuation destination. Such scenario data is stored for each user's attribute information. If attribute information indicates that the person uses a wheelchair, the evacuation route will be defined as scenario data that allows for evacuation even while using a wheelchair. Similarly, if attribute information indicates that the person is elderly, the evacuation route will be defined as one that minimizes the use of stairs, has handrails and is easy to walk, or has few steps and is equipped with ramps. Furthermore, the scenario data may also be guidance information that associates segments within a facility with guidance content corresponding to those segments. Here, a segment refers to, for example, a section within a facility. The guidance content should indicate evacuation routes, directions of evacuation, etc., according to the segment.

[0023] The learning unit 103 generates a trained model by learning the relationship between user attribute information and training data showing the location and elapsed time when the user performs an evacuation drill according to an evacuation scenario. This learning may be machine learning. Furthermore, the learning method may be based on an outlier detection method that extracts abnormal values ​​from statistical patterns, or it may use a support vector machine to determine whether something is normal or abnormal, or it may use logistic regression. By using a pre-trained model, it is possible to learn the evacuation situation during evacuation drills for each user attribute. This allows for anomaly detection based on whether the user's evacuation situation (location, elapsed time) in an actual disaster deviates significantly from the evacuation situation (location, elapsed time) during the evacuation drill.

[0024] Here, based on training data obtained from conducting evacuation drills, data representing the evacuation status when a user evacuates successfully is used for each user attribute information. Data mining is then used to identify whether the evacuation status during a disaster is normal or abnormal. If it is identified as normal, it can be estimated that the evacuation was carried out according to the evacuation drill, and therefore the evacuation proceeded smoothly. On the other hand, if it is identified as abnormal (a deviation from the evacuation drill), it can be estimated that the evacuation did not proceed smoothly. For example, if a disaster occurs while the user is in a different location than usual, they may have to evacuate from a location not covered in the evacuation drill, and because it is an unfamiliar place, they may get lost, resulting in an unsmooth evacuation. Furthermore, if a disaster occurs while an employee is in a different location than usual (for example, a warehouse instead of their desk), they may not have received evacuation drills starting from that location. This could lead to delays in understanding evacuation routes and hinder a smooth evacuation. Furthermore, it's possible that someone, having received training in evacuation procedures that included using stairs, sustained a leg injury while evacuating along that same route, making it impossible to use the stairs. Furthermore, even if people were evacuating using the route prescribed in the evacuation drill, there may be cases where they were forced to evacuate via a different route than the one prescribed in the drill because a section of the route was under construction and closed to traffic. In such cases, if the user's current location during the evacuation and the elapsed time since the alarm was issued and an evacuation order was given by the disaster prevention system 3 deviate from the evacuation situation during the evacuation drill, and this deviation exceeds a standard level, an abnormality can be detected. The standard level represents the degree of deviation and may be a predetermined threshold.

[0025] The determination unit 104 uses a trained model stored in the storage unit 102 to determine whether at least one of the location and elapsed time indicated by the user's evacuation data differs by more than a standard level. For example, when the control unit 106 acquires evacuation data, which is data indicating that a user is evacuating during a disaster, via the communication unit 101, the determination unit 104 inputs this evacuation data into the trained model and obtains a result from the trained model indicating whether it is normal or abnormal, thereby determining whether it differs by more than a standard level. If the threshold level is exceeded, it is possible to estimate that there is a discrepancy between the evacuation route and the time taken to evacuate (elapsed time) during an evacuation drill and the evacuation route taken during an actual disaster. Therefore, it can be estimated that at least the evacuation route is different from that taken during the evacuation drill, or that the elapsed time is longer than during the evacuation drill. In such cases, by sending guidance information that is appropriate to the situation at the time, rather than the scenario data from the evacuation drill, evacuation guidance can be provided according to the situation, even if evacuation is difficult using the assumed evacuation method (the evacuation method based on the scenario data from the evacuation drill).

[0026] The notification unit 105 causes the communication unit 101 to transmit various data to the user terminal 1 or the support staff terminal 2. For example, the notification unit 105 has a first transmission unit 1051 that, in response to the occurrence of a disaster, transmits evacuation routes for evacuation drills to the user's terminal device via the communication unit 101. Furthermore, the notification unit 105 has a second transmission unit 1052 that, when the determination unit 104 determines that at least one of the evacuation data's location and elapsed time exceeds a standard level, transmits guidance information corresponding to the exceedance of the standard level to the user terminal 1 or support staff terminal 2 via the communication unit 101. The notification unit 105 may also transmit an evacuation route different from the evacuation route transmitted to the terminal device if the elapsed time exceeds the standard level. The notification unit 105 may also transmit an evacuation route as guidance information corresponding to the user's current location if the location exceeds the standard level. Furthermore, the notification unit 105 has a third transmission unit 1053 that, when the elapsed time exceeds a standard level, transmits the location information of the user terminal 1, measured by the user terminal 1, to the terminal device of the support staff member assisting with the evacuation (support staff member terminal 2) via the communication unit 101.

[0027] The control unit 106 controls each part of the evacuation support device 10. The control unit 106 acquires user attribute information and training data from the user terminal 1 indicating the location and elapsed time when the user performs the evacuation drill according to the evacuation scenario, and writes it to the training data storage area of ​​the storage unit 102.

[0028] Furthermore, the control unit 106 has an acquisition unit 1061 that acquires evacuation data indicating the user's evacuation location and elapsed time when an evacuation begins after a disaster occurs.

[0029] In the evacuation support device 10, the communication unit 101, learning unit 103, determination unit 104, notification unit 105, and control unit 106 may be composed of a processing unit such as a CPU (central processing unit) or a dedicated electronic circuit.

[0030] Next, the operation of the evacuation support device 10 will be explained. This section describes the operation of the evacuation support device 10, including the learning phase, which generates a trained model, and the execution phase, which uses the trained model to provide evacuation support. Figure 3 is a flowchart illustrating the operation of the evacuation support device 10 during the learning phase. The learning phase is performed when conducting an evacuation drill. When an evacuation drill begins, the control unit 106 of the evacuation support device 10 starts counting the elapsed time from the start time. The control unit 106 then acquires the terminal ID and the current location determined by the user terminal 1 from the user terminal 1 via the communication unit 101 (step S101) and writes them to the training data storage unit 1021 (step S102). Here, the terminal ID and attribute information are pre-stored as user information in the storage unit 102, and the control unit 106 reads the attribute information corresponding to the acquired terminal ID by referring to the user information in the storage unit 102, associates the read attribute information with the acquired location and the elapsed time at the time the location was acquired, and stores it as training data in the training data storage unit 1021.

[0031] The control unit 106 continues to acquire and store such training data until the evacuation drill is completed. The start and end times of the evacuation drill may be notified to the evacuation support device 10 from the terminal device by the administrator inputting this information into the terminal device.

[0032] Once the storage of the training data is complete, the learning unit 103 generates a trained model by performing training based on the training data (step S103) and stores it in the training data storage unit 1022 (step S104). Here, a trained model is generated for each user attribute and stored in the training data storage unit 1022.

[0033] Figure 4 is a flowchart illustrating the operation of the evacuation support device 10 during the execution phase. The execution phase is performed during periods when evacuation drills are not being conducted. When the control unit 106 of the evacuation support device 10 receives an alert from the disaster prevention system 3 (step S201), it transmits scenario data based on the evacuation drill to each user terminal 1 (step S202). Here, the control unit 106 identifies attribute information corresponding to the terminal ID of the user terminal 1 to which the data is to be transmitted by referring to user information, reads the scenario data corresponding to that attribute information from the scenario data storage unit 1023, and transmits the read scenario data to the user terminal 1. When user terminal 1 receives scenario data, it displays the evacuation route included in the scenario data on its display screen. This allows the user to evacuate while confirming the evacuation route displayed on the screen. In addition, when user terminal 1 receives scenario data, it determines its current location and transmits the current location to the evacuation support device 10 at regular intervals based on the positioning result. The regular interval can be arbitrarily determined, but for example, it may be every few seconds.

[0034] Next, the control unit 106 starts counting the elapsed time (step S203). Then, the control unit 106 receives location information indicating the current location along with the terminal ID from each user terminal 1 via the communication unit 101 (step S204).

[0035] When location information is acquired, the determination unit 104 acquires the acquired location information and the elapsed time at the time the location information was acquired, and uses the trained model stored in the training data storage unit 1022 to determine whether at least one of the location or the elapsed time differs by more than a reference level (step S205).

[0036] If the determination result of the determination unit 104 indicates that there are no differences exceeding the standard level for either the position or the elapsed time, that is, if it is estimated that there is almost no discrepancy with the position and elapsed time when the evacuation drill was conducted (step S205-NO), the control unit 106 proceeds to step S207.

[0037] On the other hand, if the determination unit 104 determines that at least one of the location or elapsed time exceeds a standard level, it can be estimated that the user is in a different location than when the evacuation drill was conducted, or that the user is on the evacuation route used during the evacuation drill, but the elapsed time is longer than when the evacuation drill was conducted. In other words, in such cases, it can be estimated that the user is not able to evacuate based on the scenario data. If the determination unit 104 determines that at least one of the position or elapsed time exceeds the standard level, the notification unit 105 sends guidance information corresponding to the exceedance of the standard level to the user terminal 1 or the support staff terminal 2 (step S206).

[0038] Here, when sending guidance information to the user terminal 1, the notification unit 105, based on whether the item to be transmitted is location or elapsed time, sends guidance information (an evacuation route different from the evacuation drill) according to the user's current location if the location exceeds the reference level. For example, the notification unit 105 reads scenario data from the scenario data storage unit 1023, which includes the evacuation route when evacuating from the location transmitted from the user terminal 1, and scenario data corresponding to the user's attribute information of the user terminal 1 to be transmitted, and sends the read scenario data to the user terminal 1. This makes it possible to guide the user to an evacuation route appropriate to their current location even if they are in a different location than the location on the evacuation drill route they performed. For example, even if the user gets lost inside the facility during evacuation, or if they deviate from the evacuation drill route due to an obstacle, guidance information (evacuation route) appropriate to their current location (segment) can be provided. Here, the scenario data transmitted as guidance information is pre-prepared for each user's attribute information and includes an evacuation route and elapsed time that is assumed to be safe to evacuate, and is stored in the scenario data storage unit 1023 in advance for each user's attribute information.

[0039] Furthermore, the notification unit 105, based on whether the item to be transmitted is location or elapsed time, transmits the location information of user terminal 1, measured by user terminal 1, to support staff terminal 2 if the elapsed time exceeds the reference level. For example, even if the user is moving along the same evacuation route as when they participated in the evacuation drill, if it is taking longer than expected, and the user has been injured in the disaster, it is anticipated that the time until evacuation is completed will be even longer. In such cases, a request for rescue and guidance information including the user's location are transmitted to support staff terminal 2. This allows support staff to go to the user's location, check the user's condition, and provide rescue or other assistance. When guidance information is transmitted, the control unit 106 proceeds to step S207.

[0040] In step S207, the control unit 106 determines whether or not to terminate the process. If it is determined not to terminate the process (step S207-NO), the control unit 106 moves the process to step S204 and receives location information indicating the current location from each user terminal 1 along with the terminal ID (step S204). Cases in which the process is determined not to terminate include, for example, when the determination result of the determination unit 104 shows no discrepancies exceeding the standard level for either the position or the elapsed time, and the user's position has not reached the final point of the evacuation route based on the scenario data. In such cases, if there are no further discrepancies exceeding the standard level for either the position or the elapsed time, the confirmation of the user's evacuation status will continue.

[0041] If it is determined that the process should be terminated (step S207-NO), the control unit 106 terminates the process. For example, if the determination result of the determination unit 104 shows no discrepancies exceeding the standard level for either the position or the elapsed time, the control unit 1 terminates the process for the user terminal 1 of a user whose position has reached the final point of the evacuation route based on the scenario data. Another example is when the determination result of the determination unit 104 shows a difference exceeding a standard level for at least one of the position and elapsed time, and the processing for the user terminal 1 that was to send guidance information to the support staff terminal 2 is terminated. Furthermore, if the determination result of the determination unit 104 shows a discrepancy exceeding the standard level for at least one of the position and elapsed time, and the user terminal 1 of the target user that has sent scenario data for an evacuation route different from the evacuation drill as guidance information, the processing will be terminated for the user terminal 1 of the user who has reached the final point of the evacuation route based on the scenario data which is the guidance information.

[0042] Furthermore, if the determination result of the determination unit 104 shows a discrepancy exceeding the standard level for at least one of the location and elapsed time, and the user terminal 1 that sent scenario data for an evacuation route different from the evacuation drill as guidance information also shows a discrepancy exceeding the standard level for at least one of the location and elapsed time based on the scenario data which is the guidance information, the notification unit 105 sends the location information of the user terminal 1 carried by such a user to the support staff terminal 2 as guidance information and terminates the process. Another example is when the determination result of the determination unit 104 shows a discrepancy exceeding a standard level for at least one of the position and elapsed time, and the processing is terminated for the user terminal 1 that sent guidance information to the support staff terminal 2. For user terminal 1 to which guidance information is sent, the guidance information is also notified to support staff terminal 2, allowing support staff to take various actions such as going to provide assistance.

[0043] In the embodiments described above, the learning unit 103 may be an external device to the evacuation support device 10 and may be connected to the evacuation support device 10 in a way that enables communication.

[0044] The evacuation support device 10 in the above-described embodiment may be implemented using a computer. In that case, the program for implementing this function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be loaded into a computer system and executed. Here, "computer system" includes hardware such as an OS and peripheral devices. Furthermore, "computer-readable recording medium" refers to portable media such as flexible disks, magneto-optical disks, ROMs, CD-ROMs, and storage devices such as hard disks built into a computer system. Moreover, "computer-readable recording medium" may also include those that dynamically hold programs for a short period of time, such as communication lines used when transmitting programs via networks such as the Internet or communication lines such as telephone lines, and those that hold programs for a certain period of time, such as volatile memory inside a computer system that acts as a server or client in such cases. Furthermore, the above-mentioned program may be for implementing a part of the above-mentioned function, or it may be a program that can implement the above-mentioned function in combination with a program already recorded in the computer system, or it may be implemented using a programmable logic device such as an FPGA (Field Programmable Gate Array).

[0045] While embodiments of this invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments and includes designs and the like that do not depart from the spirit of this invention. [Explanation of Symbols]

[0046] 1,1a,1b…User terminals, 2,2a,2b…Support staff terminals, 3…Disaster prevention system, 10…Evacuation support device, 101…Communication unit, 102…Storage unit, 1021…Training data storage unit, 1022…Learning data storage unit, 1023…Scenario data storage unit, 103…Learning unit, 104…Determination unit, 105…Notification unit, 106…Control unit, 1051…First transmission unit, 1052…Second transmission unit, 1053…Third transmission unit, 1061…Acquisition unit, NW…Network, S…Evacuation support system

Claims

1. A storage unit that stores a trained model which has learned the relationship between user attribute information and training data showing the location and elapsed time when the user performs an evacuation drill according to an evacuation scenario, A first transmission unit transmits the evacuation route used during the evacuation drill to the user's terminal device in response to the occurrence of a disaster, An acquisition unit that acquires evacuation data indicating the location and elapsed time of the user when an evacuation begins due to a disaster, A determination unit that determines whether at least one of the location and elapsed time indicated by the user's evacuation data differs by more than a reference level by using the trained model, A second transmission unit transmits guidance information corresponding to the exceedance of the reference level to the terminal device when it is determined that at least one of the position and elapsed time exceeds the reference level. An evacuation support device having the following features.

2. The second transmitting unit transmits an evacuation route different from the evacuation route transmitted to the terminal device if the elapsed time exceeds the reference level. The evacuation support device according to claim 1.

3. The second transmitting unit, when the position exceeds the reference level, transmits evacuation route information as guidance information according to the user's current location. The evacuation support device according to claim 1.

4. If the elapsed time exceeds the reference level, the third transmission unit transmits the location information of the terminal device to the terminal device of the support staff assisting with the evacuation. An evacuation support device according to any one of claims 1 to 3, characterized by having the following:

5. The memory unit stores a trained model that has learned the relationship between the user's attribute information and training data showing the location and elapsed time when the user performs an evacuation drill according to an evacuation scenario. The first transmission unit, in response to the occurrence of a disaster, transmits the evacuation route used during the evacuation drill to the user's terminal device. The acquisition unit acquires evacuation data indicating the user's evacuation location and elapsed time when an evacuation begins due to a disaster. The determination unit uses the trained model to determine whether at least one of the location and elapsed time indicated by the user's evacuation data differs by more than a reference level. If the second transmitting unit determines that at least one of the position and elapsed time exceeds the reference level, it transmits guidance information corresponding to the exceedance of the reference level to the terminal device. Evacuation support methods.

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