JP6966949B2 - Evacuation guidance system and evacuation guidance method - Google Patents

Description

The present invention relates to an evacuation guidance system and an evacuation guidance method.

There is a system that notifies the occupants or pedestrians of a vehicle when an earthquake, tsunami, etc. is predicted and a disaster warning (warning information) is issued.

Japanese Unexamined Patent Publication No. 2006-237959

However, since the warning information is widely issued in the area where the predicted event affects, the event does not always have a great influence at the current position. Therefore, even though evacuation is not necessary, there are cases where it is not possible to take appropriate actions only with warning information, such as starting evacuation. In addition, since it is not possible to know the necessity of evacuation from the warning information alone, there were cases where evacuation was not started and the victim was damaged.

The present invention has been made in view of this point, and an object of the present invention is to provide an evacuation guidance system and an evacuation guidance method capable of promoting accurate evacuation behavior to evacuees.

In order to solve the above problems, an evacuation guidance system will be provided. The evacuation guidance system acquires the location information of the target person who performs evacuation guidance, the first acquisition unit that acquires warning information including the event that has occurred, the area that can be affected by the event, and the outline of the event in the area. The second acquisition unit, the analysis unit that analyzes the alarm information based on the keywords that can be included in the alarm information prepared in advance and the position information, and specifies the outline of the event at the current position of the target person, and the specified current position. It is equipped with an evacuation guidance unit that executes evacuation guidance according to the outline of the event in.

According to the evacuation guidance system and the evacuation guidance method, it is possible to promote appropriate evacuation behavior to the evacuees.

It is a figure which shows the configuration example of the evacuation guidance system in 1st Embodiment. It is a figure which shows the configuration example of the evacuation guidance system in the 2nd Embodiment. It is a figure which shows the configuration example of the hardware of the portable terminal in 2nd Embodiment. It is a figure which shows the functional block of the portable terminal, the evacuation place information server, the base station information server, and the location information server in the 2nd Embodiment. It is a figure which shows an example of the keyword table in 2nd Embodiment. It is a figure which shows an example of the urgency determination table in 2nd Embodiment. It is a figure which shows an example of the guidance message table in 2nd Embodiment. It is a figure which shows an example of the merging applicant table in the 2nd Embodiment. It is a figure which shows an example of the evacuation place table in the 2nd Embodiment. It is a figure which shows an example of the base station table in 2nd Embodiment. It is a figure which shows an example of the position information table in 2nd Embodiment. It is a flowchart of the merge applicant setting process in 2nd Embodiment. It is a flowchart of the evacuation guidance process in the 2nd Embodiment. It is a figure which shows an example of the primary guidance screen in 2nd Embodiment. It is a flowchart of the guidance place determination process in 2nd Embodiment. It is a flowchart of the secondary guidance screen generation process in 2nd Embodiment. It is a figure (the 1) which shows an example of the secondary guidance screen in 2nd Embodiment. It is a figure (No. 2) which shows an example of the secondary guidance screen in 2nd Embodiment. It is a figure (the 3) which shows an example of the secondary guidance screen in 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
The evacuation guidance system 1 is a system that guides a target person (hereinafter referred to as an evacuee) who performs evacuation guidance when warning (warning) information 2a is issued to an evacuation area.

The evacuation guidance system 1 includes a first acquisition unit 2, a second acquisition unit 3, an analysis unit 4, and an evacuation guidance unit 5.
The first acquisition unit 2 acquires the alarm information 2a. The alarm information 2a is, for example, information issued by the national instantaneous alarm system (also referred to as J-alert). The information issued as the warning information 2a is, for example, predetermined information such as earthquake information, tsunami information, volcano information, meteorological information, and emergency-related information. Since the alarm information 2a is information issued in an emergency, the data format (layout) is predetermined (it is a fixed phrase), and the character strings that can appear are also limited.

The warning information 2a is information including an event that has occurred, an area that may be affected by the event, and an outline of the event in the area (for example, the magnitude of the tsunami, the estimated time of arrival of the tsunami, etc.).
The second acquisition unit 3 acquires the position information 3a of the evacuees. For example, the GPS coordinates of a terminal (portable terminal) with a built-in GPS (Global Positioning System) receiver held by the target person who guides evacuation are acquired as the position information of the evacuees.

The analysis unit 4 analyzes the alarm information 2a based on the keywords that can be included in the alarm information 2a prepared in advance and the position information 3a, and specifies the outline of the event at the current position of the subject. For example, the analysis unit 4 generates a keyword indicating the current position based on the position information 3a, and analyzes the alarm information 2a based on the keyword and a keyword that can be included in the alarm information 2a prepared in advance.

As described above, since the alarm information 2a is information issued in an emergency, the data format is predetermined and the character strings that can appear are limited. Therefore, the evacuation guidance system 1 prepares keywords that can be included in the warning information used for analyzing the warning information in advance based on the data format, and analyzes the warning information using the keywords to perform analysis in a short time. realizable. As a result, the evacuation guidance system 1 can prevent the fear that the guidance is delayed and the evacuees are delayed in escaping.

The evacuation guidance unit 5 executes evacuation guidance according to the outline of the event at the specified current position (for example, the magnitude of the tsunami, the estimated arrival time of the tsunami, etc.). For example, the evacuation guidance unit 5 guides the user not to take evacuation action when the magnitude of the tsunami at the specified current position is equal to or less than the predetermined value, and is appropriate when the magnitude of the tsunami is equal to or greater than the predetermined value. Evacuation guidance will be provided to various evacuation sites (evacuation sites that can handle the magnitude of the tsunami).

In this way, the evacuation guidance system 1 identifies the outline of the event at the current position of the evacuees based on the warning information, and guides the evacuation based on the outline of the identified evacuees at the current position, so that the evacuees can be accurately guided. Evacuation behavior can be promoted.

[Second Embodiment]
Next, as the second embodiment, the evacuation guidance system of the first embodiment will be described more specifically. FIG. 2 is a diagram showing a configuration example of the evacuation guidance system according to the second embodiment.

The evacuation guidance system 100 includes a portable terminal 110, a GPS satellite 120, a base station 130, an evacuation site information server 140, a base station information server 150, and a location information server 160.

The portable terminal 110 is a wireless communication terminal held by the evacuees and is a terminal that receives the issued alarm information. Examples of the portable terminal 110 include smartphones, mobile phones, tablet terminals, and the like. The portable terminal 110 is configured so that the current position can be acquired. In the second embodiment, the portable terminal 110 has a built-in GPS receiver and is configured to be able to acquire the current position by receiving the radio waves of the GPS satellite 120.

When the portable terminal 110 receives the alarm information, the portable terminal 110 analyzes the received alarm information, identifies the event that is the cause of the alarm and the outline of the event at the current position (scale of the event, etc.), and identifies the evacuation site (the evacuation site (scale of the event, etc.)). Decide the guidance location) and guide the evacuees to the determined evacuation site. The determination of the evacuation site will be described in detail later with reference to FIG.

The GPS satellite 120 transmits radio waves for the portable terminal 110 to acquire the current position.
The base station 130 is a structure including an antenna and a device for directly communicating with a wireless communication terminal. Since the base stations 130 can communicate within a limited predetermined range, a plurality of base stations 130 are arranged (only one of the plurality is shown in FIG. 2). The base station 130 communicates with the portable terminal 110 within a predetermined range (inside the cell). The base station 130 connects the portable terminal 110 to the evacuation area information server 140, the base station information server 150, and the location information server 160 in a communicable manner.

In FIG. 2, wireless communication (wireless communication) is performed between the base station 130 and the evacuation site information server 140, between the base station 130 and the base station information server 150, and between the base station 130 and the location information server 160. The example of communication via network) is used, but it is not limited to this. A wired network (wired communication) may be used as long as communication is possible between the base station 130 and the evacuation site information server 140, between the base station 130 and the base station information server 150, and between the base station 130 and the location information server 160. ) May be.

The evacuation area information server 140 is a server that stores an evacuation area so that the types of events that can be handled and the outline of the events that can be handled can be specified.
The base station information server 150 is a server that stores an installed position, a communication range, and the number of terminals currently being communicated (congestion level of the communication range).

The location information server 160 is a server that stores location information of a portable terminal (terminal with a built-in GPS receiver). The location information server 160 stores the location information of the portable terminal (not shown) for which the location information is acquired and registered in advance. The location information stored in the location information server 160 is periodically updated based on the data received from the GPS satellite 120 by the portable terminal registered for use.

Next, the hardware configuration of the portable terminal will be described with reference to FIG. FIG. 3 is a diagram showing a configuration example of the hardware of the portable terminal according to the second embodiment.
In the portable terminal 110, the entire device is controlled by the processor 111. A RAM (Random Access Memory) 112 and a plurality of peripheral devices are connected to the processor 111 via a bus 116. The processor 111 may be a multiprocessor. The processor 111 is, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), or a PLD (Programmable Logic Device). Further, the processor 111 may be a combination of two or more elements of the CPU, MPU, DSP, ASIC, and PLD.

The RAM 112 is used as the main storage device of the portable terminal 110. The RAM 112 temporarily stores at least a part of an OS (Operating System) program or an application program to be executed by the processor 111. Further, the RAM 112 stores various data necessary for processing by the processor 111.

Peripheral devices connected to the bus 116 include an HDD (Hard Disk Drive) 113, an input / output interface 114, and a network interface 115.
The HDD 113 magnetically writes and reads data to and from the built-in disk. The HDD 113 is used as an auxiliary storage device for the portable terminal 110. The HDD 113 stores an OS program, an application program, and various data. As the auxiliary storage device, a semiconductor storage device such as a flash memory can also be used.

A display 114a, a speaker 114b, a microphone 114c, and a GPS receiver 114d are connected to the input / output interface 114. The input / output interface 114 causes the image to be displayed on the screen of the display 114a according to the instruction from the processor 111. Further, the input / output interface 114 causes the speaker 114b to output audio according to an instruction from the processor 111. Further, the input / output interface 114 transmits a signal transmitted from the microphone 114c to the processor 111. Further, the input / output interface 114 transmits the signal received by the GPS receiver 114d to the processor 111.

The network interface 115 is connected to a wireless network. The network interface 115 transmits / receives data to / from the evacuation site information server 140, the base station information server 150, and the location information server 160 via the base station 130.

With the hardware configuration as described above, the processing function of the second embodiment can be realized. The evacuation site information server 140, the base station information server 150, and the location information server 160 can also realize the processing function of the second embodiment with the same configuration.

Next, the functions of the portable terminal 110, the evacuation site information server 140, the base station information server 150, and the location information server 160 will be described with reference to FIG. FIG. 4 is a diagram showing functional blocks of a portable terminal, an evacuation site information server, a base station information server, and a location information server in the second embodiment.

The portable terminal 110 includes a registration information update processing unit 110a, a storage unit 110b, an acquisition unit 110c, an analysis unit 110d, an evacuation guidance unit 110e, and a communication control unit 110f.
The registration information update processing unit 110a executes a process related to updating the registration information. The registration information includes information about the evacuees wishing to join.

The storage unit 110b stores various information used for the evacuation guidance process. The information used for the evacuation guidance process includes, for example, information (keyword) used for analyzing alarm information, information used for determining the degree of urgency at the current position of the evacuees (determining whether or not to evacuate), guidance messages, and those who wish to join. There is information and so on. The information stored in the storage unit 110b will be described in detail later with reference to FIGS. 5 to 8.

The acquisition unit 110c executes processing related to acquisition of information used for evacuation guidance processing from outside the terminal. Information acquired by the acquisition unit 110c from outside the terminal includes, for example, issued alarm information, location information (GPS information) of the portable terminal 110, location information of a person who wishes to join, evacuation site candidates, base station information, and information. There is map information to the evacuation site.

The analysis unit 110d extracts the keywords included in the alarm information based on the alarm information, the information (keyword) used for analyzing the alarm information, and the position information, and the event that is the cause of the alarm information and the alarm information are issued. Specify the outline of the event (for example, the magnitude of the tsunami, the estimated arrival time of the tsunami) at the current position (the position indicated by the position information).

For example, the analysis unit 110d generates a keyword for the current position based on the acquired position information, and information used for analysis of the alarm information stored in the storage unit 110b in advance (keyword prepared in advance based on the data format). The alarm information is analyzed based on the generated keywords, and the outline of the event that is the cause of the alarm information and the event at the current position is specified.

For example, the analysis unit 110d identifies a keyword included in the alarm information, and a character string (number) based on the specified keyword (tsunami) or associated with the specified keyword (for example, a keyword related to time). Based on, the event that is the cause of the alarm information and the outline of the event at the current position (the position indicated by the position information) are specified.

In addition to directly acquiring the summary of the event at the current position by analyzing the alarm information, the analysis unit 110d acquires the outline of the event based on the analyzed information of the alarm information.
For example, when the magnitude of the predicted tsunami at the time of reaching the coast of the prefecture to which the current position belongs is specified from the warning information, the analysis unit 110d sets the current position based on the predicted size of the specified tsunami and the position information. Calculate and obtain the expected magnitude of the tsunami that will arrive. Further, when the estimated coastal arrival time of the prefecture to which the current position belongs is specified from the warning information, the analysis unit 110d will reach the current position based on the specified estimated coastal arrival time and the position information of the current position. Is calculated and obtained.

The evacuation guidance unit 110e executes a process related to guidance to the evacuation site. The evacuation guidance unit 110e determines the guidance location (1 evacuation site) from the evacuation site candidates (1 or more evacuation sites that satisfy the conditions), and the guidance location and the position of the portable terminal 110 (evacuee) on the map. The evacuees are guided to the determined guidance location while displaying the current position) and the position of the person who wishes to join. It should be noted that the mapping of the merging applicants may be performed only when the merging applicants are within a predetermined range.

The communication control unit 110f executes processing related to communication. The communication control unit 110f controls the exchange of data between the evacuation site information server 140, the base station information server 150, and the location information server 160.

The evacuation site information server 140 includes a storage unit 140a, an acquisition unit 140b, and a communication control unit 140c.
The storage unit 140a stores information about the evacuation site. The storage unit 140a stores the evacuation site as the type of the event that can be dealt with and the outline of the event that can be dealt with. Information on the evacuation site stored in the storage unit 140a will be described in detail later with reference to FIG.

The acquisition unit 140b acquires an evacuation site candidate from the storage unit 140a and notifies the portable terminal 110. The acquisition unit 140b receives acquisition conditions from the acquisition unit 110c, identifies one or more evacuation sites that satisfy the accepted acquisition conditions from the storage unit 140a, and notifies one or more evacuation sites (evacuation site candidates).

The communication control unit 140c executes processing related to communication. The communication control unit 140c controls the exchange of data with the portable terminal 110.
The base station information server 150 includes a storage unit 150a, an acquisition unit 150b, and a communication control unit 150c.

The storage unit 150a stores information about the base station. The storage unit 150a stores the position where the base station is installed, the communication range, and the number of terminals currently being communicated (congestion degree of the communication range). Information about the base station stored in the storage unit 150a will be described in detail later with reference to FIG.

The acquisition unit 150b acquires information about the base station from the storage unit 150a and notifies the portable terminal 110. The acquisition unit 150b receives acquisition conditions from the acquisition unit 110c, identifies a base station satisfying the accepted acquisition conditions from the storage unit 150a, and notifies information about the specified base station.

The communication control unit 150c executes processing related to communication. The communication control unit 150c controls the exchange of data with the portable terminal 110.
The location information server 160 includes a storage unit 160a, an acquisition unit 160b, and a communication control unit 160c.

The storage unit 160a stores the position information of the portable terminal for which the position information has been acquired and registered in advance. The storage unit 160a stores the position information of the portable terminal and the information that can uniquely identify the portable terminal in association with each other. The position information of the portable terminal stored by the storage unit 160a will be described in detail later with reference to FIG.

The acquisition unit 160b acquires the position information of the evacuees wishing to join from the storage unit 160a and notifies the portable terminal 110. The acquisition unit 160b receives the acquisition condition from the acquisition unit 110c, identifies the position information of the portable terminal that satisfies the accepted acquisition condition from the storage unit 160a, and notifies the specified position information.

The communication control unit 160c executes processing related to communication. The communication control unit 160c controls the exchange of data with the portable terminal 110.
Next, the information (keyword) used for the analysis of the alarm information stored in the storage unit 110b will be described. FIG. 5 is a diagram showing an example of a keyword table in the second embodiment.

The keyword table is a table stored by the storage unit 110b. The keyword table is a table in which keywords used for analysis are set. As the keyword table, a table in which a keyword for specifying an event of alarm information is registered, a table in which a keyword for specifying an outline of an event is registered, and a keyword for specifying an occurrence time are registered. There are tables and tables in which keywords that specify the location of occurrence are set (there is a table for each content to be specified). In addition, here, a keyword table for specifying an event will be described in particular.

The keyword table 200 is a table in which keywords for specifying an event are set. The keyword table 200 is configured to include an event (specific content) item and a keyword item. The information set in the horizontal direction of each item is associated with each other.

Information indicating an event in which alarm information can be issued is set in the event item. In the keyword item, a keyword corresponding to the event (a keyword included in the alarm information according to the event) is set. The keywords are set based on the data format of the alarm information (keywords that appear).

For example, in the keyword table 200, "emergency-related" is set in the event item, and "missile" is set in the keyword item corresponding to "emergency-related".
This indicates that the event that caused the warning information to be issued when the keyword "missile" is detected from the warning information is "emergency-related".

In general, since the alarm information is information issued in an emergency, the data format (appearing keywords) is predetermined and the character strings that appear are limited. Therefore, the evacuation guidance system 100 is described in this way. By preparing a table in which information (keywords) used for analysis of alarm information is set in advance based on the data format and analyzing the alarm information using the keywords set in the table, analysis in a short time can be realized.

Next, the information used for determining the degree of urgency stored in the storage unit 110b will be described. FIG. 6 is a diagram showing an example of an urgency determination table in the second embodiment.
The urgency determination table is a table stored by the storage unit 110b. The urgency determination table is a table used for determining the urgency of evacuation at the current position. Since the urgency determination standard differs depending on the event that has occurred, the storage unit 110b stores the urgency determination table for each event. Here, the urgency determination table when the event is a tsunami will be described.

The urgency determination table 210 is a table for determining the urgency of evacuation in a tsunami. The urgency determination table 210 includes an urgency item, a scale item, and an evacuation necessity item. The information set in the horizontal direction of each item is associated with each other.

The urgency is the urgency of evacuation. Identification information indicating the urgency of evacuation is set in the item of urgency. For example, "1" is set when the degree of urgency is the highest, and the number is set to increase as the degree of urgency decreases.

The scale is the scale of the event (an example of the influence of the event), and is an example of the criteria for determining the urgency when the event is a tsunami. In the item of scale, the scale of the tsunami corresponding to the degree of urgency is set.

In the item of evacuation necessity, information indicating whether evacuation is necessary (“necessary”) or evacuation is not necessary (“no”) is set in the corresponding urgency.
For example, in the urgency determination table 210, "1" is set for the urgency item, "10 m or more" is set, and "necessary" is set for the evacuation necessity item.

This indicates that when the scale of the tsunami at the current position is "10 m or more", the urgency is "1" and evacuation is necessary.
Next, the guidance message stored by the storage unit 110b will be described. FIG. 7 is a diagram showing an example of a guidance message table in the second embodiment.

The guidance message table is a table stored by the storage unit 110b. The guidance message table is a table in which messages used for guiding evacuees are set. The guidance message is notified immediately after the evacuation information is analyzed. Guidance messages prompt you to do what you need to do immediately (prior to evacuation). The guidance message is notified prior to the guidance to the evacuation site.

Since the guidance content differs depending on the event that has occurred, the storage unit 110b stores the guidance message table for each event. Here, the guidance message table when the event is a tsunami will be described.

The guidance message table 220 is a table that stores guidance messages used when a tsunami occurs. The guidance message table 220 includes an item of urgency and an item of guidance message. The information set in the horizontal direction of each item is associated with each other.

Identification information indicating the urgency of evacuation is set in the item of urgency. In the item of the guidance message, the guidance message according to the urgency is set.
For example, in the guidance message table 220, "1" is set in the urgency item, and "prepare to start moving immediately without carrying luggage" is set in the guidance message item. This indicates that when the urgency is determined to be "1", the guidance "Please prepare to start moving immediately without carrying luggage" is performed.

Since it may take time to determine the evacuation site, the portable terminal 110 uses a guidance message to guide the user to take immediate action according to the degree of urgency prior to guiding to the evacuation site. After the location is decided, it is possible to promptly guide to the evacuation site.

Next, the merging applicant information stored in the storage unit 110b will be described. FIG. 8 is a diagram showing an example of a join applicant table in the second embodiment.
The merging applicant table 230 is a table stored by the storage unit 110b. The merging applicant table 230 is a table in which information about the merging applicants who the evacuees wish to join is set.

The merging applicant table 230 includes a name item, a relationship item, and a telephone number item. The information set in the horizontal direction of each item is associated with each other.
In the name item, the name of the person who wishes to join is set. In the relationship item, the relationship between the evacuees and those who wish to join is set. The telephone number is information that can uniquely identify the portable terminal possessed by the person who wishes to join, and is used to acquire the location information of the person who wishes to join. In the telephone number item, the telephone number of the person who wishes to join is set.

For example, in the merge applicant table 230, "○○ Taro" is set in the name item, "child" is set in the relationship item, and "○ × △ -1111-3333" is set in the telephone number item. ing.

This is because the name of the person who wants to join the evacuees at the time of evacuation is "○○ Taro", the relationship with the evacuees is "child", and the telephone number is "○ × △ -1111-3333". It shows that there is.

Next, the evacuation area stored by the storage unit 140a will be described. FIG. 9 is a diagram showing an example of an evacuation site table in the second embodiment.
The evacuation site table is a table stored by the storage unit 140a. Since the evacuation site differs depending on the event that has occurred, the storage unit 140a stores the evacuation site table for each event. The evacuation area information in the evacuation area table is updated as appropriate each time it is added or deleted, and is always kept up to date. As a result, the evacuation guidance system 100 prevents the evacuees from being damaged because there is no set evacuation site. Therefore, the evacuation site table is managed not on the terminal side but on the server side. Here, the evacuation site table where the event is a tsunami will be described.

The evacuation site table 240 includes an item of location information, an item of a name, an item of the number of people that can be accommodated, and an item of an outline of events that can be dealt with. The information set in the horizontal direction of each item is associated with each other.

Information indicating the location of the evacuation site is set in the location information item. For example, the GPS coordinates of the evacuation area are set in the item of location information. The name of the evacuation area is set in the name item. In the item of the number of people that can be accommodated, the number of people (capacity) that the evacuation site can accommodate is set. Information indicating the outline of the responsive event is set in the item of the outline of the responsive event.

For example, in the evacuation site table 240, "(XXX, YYY)" is set in the location information item, "○ × building" is set in the name item, and "500" is set in the capacity capacity item. "20 m or less" is set in the item of the outline of the event that can be dealt with.

This is because the name of the evacuation area is "○ × Building", the evacuation area exists in "(XXX, YYY)", the evacuation area can accommodate "500" people, and the tsunami is "20m or less". It shows that it can be used as an evacuation site and can be selected as an evacuation site.

Next, the information of the base station stored in the storage unit 150a will be described. FIG. 10 is a diagram showing an example of a base station table in the second embodiment.
The base station table 250 is a table stored by the storage unit 150a. The base station table 250 is a table in which base station information is set.

The base station table 250 includes an item of position information, an item of a communication range, and an item of the number of currently connected terminals (the number of terminals currently in communication). The information set in the horizontal direction of each item is associated with each other.

Information indicating the position where the base station is installed is set in the item of position information. For example, the GPS coordinates of the base station are set in the item of position information. The communication range of the base station is set in the communication range item. In the item of the number of currently connected terminals, the number of terminals currently being communicated with the base station is set.

For example, in the base station table 250, "(ZZX, YYY)" is set in the location information item, "1 km" is set in the communication range item, and "1000" is set in the currently connected terminal number item. There is.

This indicates that the base station is installed in "(ZZX, YYY)", the communication range of the base station is "1 km", and the number of currently connected terminals is "1000".
Next, the position information of the portable terminal to be acquired and registered in advance for the position information stored in the storage unit 160a will be described. FIG. 11 is a diagram showing an example of a position information table in the second embodiment.

The position information table 260 is a table stored by the storage unit 160a. The location information table 260 is a table that stores the location information of the portable terminal for which the acquisition and registration of the location information is registered in advance.

The location information table 260 includes a telephone number item and a location information item. The information set in the horizontal direction of each item is associated with each other.
The telephone number of the portable terminal is set in the telephone number item. The telephone number is an example of identification information that can uniquely identify a portable terminal. The location information of the portable terminal is set in the location information item.

For example, in the location information table 260, "〇 × Δ-1111-2222" is registered in the telephone number item, and (YXX, YYY) is set in the location information item. This indicates that the current position of the portable terminal whose telephone number is "○ × Δ-1111-2222" is (YXX, YYY).

Next, the setting process for the merging applicant table will be described. FIG. 12 is a flowchart of the joining applicant setting process in the second embodiment. The merging requester setting process is a process executed by the registration information update processing unit 110a. The merging applicant setting process is executed at an arbitrary timing.

[Step S1] The registration information update processing unit 110a accepts the input of information regarding the person who wishes to join. For example, the registration information update processing unit 110a accepts new registration and update of registered information.

[Step S2] The registration information update processing unit 110a updates the merging applicant table based on the received input content, and ends the merging applicant setting process.
Next, the evacuation guidance process will be described. FIG. 13 is a flowchart of the evacuation guidance process in the second embodiment. The evacuation guidance process is a process performed when alarm information is received.

[Step S11] The acquisition unit 110c acquires the position information of the current position. The acquisition unit 110c acquires the position information of the current position based on the radio wave from the GPS satellite 120.
[Step S12] The analysis unit 110d analyzes the alarm information. The analysis unit 110 generates a keyword indicating the current position based on the acquired position information of the current position, and the generated keyword indicating the current position and the information (keyword) used for analyzing the alarm information stored in the storage unit 110b in advance. The alarm information is analyzed based on the above, and the event that is the cause of the alarm information and the outline of the event at the current position are specified.

[Step S13] The analysis unit 110d specifies the degree of urgency based on the analysis result. The analysis unit 110d refers to the urgency determination table using the analysis result and specifies the urgency.
[Step S14] The evacuation guidance unit 110e performs primary guidance (preliminary guidance). The evacuation guidance unit 110e refers to the guidance message table using the specified urgency and guides what should be done immediately prior to evacuation. Here, the primary induction will be described with reference to FIG. FIG. 14 is a diagram showing an example of a primary guidance screen in the second embodiment.

The primary guidance screen 270 is an example of a screen displayed after the alarm information is analyzed and before the guidance location is determined. That is, the primary guidance screen 270 is a screen displayed prior to evacuation.
On the primary guidance screen 270, the message "Searching for an evacuation site" indicating that the guidance location is being determined and the guidance message "Preparing to start moving immediately without carrying luggage" indicating that the guidance location should be executed immediately. . "Is displayed. As a result, the evacuation guidance system 100 prompts the evacuees to prepare for evacuation prior to the determination of the evacuation site, and enables prompt guidance to the evacuation site after the evacuation site is determined.

[Step S15] The evacuation guidance unit 110e determines whether or not evacuation is necessary. The evacuation guidance unit 110e determines whether or not the event that occurred based on the urgency determination table and the outline of the event at the current position requires evacuation.

The evacuation guidance unit 110e ends the evacuation guidance process when it is determined that evacuation is not necessary, and proceeds to step S16 when it is determined that evacuation is necessary.
[Step S16] The evacuation guidance unit 110e specifies an evacuation range based on the current position and the outline of the event at the current position (for example, the estimated arrival time of the tsunami). For example, the evacuation guidance unit 110e specifies the position of the GPS coordinates within a predetermined range that can be evacuated within the estimated arrival time from the current position as the evacuation range. The evacuation range may be changed according to age, gender, and the like.

[Step S17] The acquisition unit 100c acquires information on evacuation site candidates (one or more evacuation sites) for evacuees. The acquisition unit 100c requests the evacuation site information server 140 to acquire the evacuation site from the evacuation site table under the acquisition condition that the evacuation site is within the range specified in step S16 and can respond to the influence of the event. , Acquire evacuation site candidates according to the warning information.

[Step S18] The evacuation guidance unit 110e determines whether or not evacuation should be prioritized over merging. In general, when the degree of urgency is high, it is desirable to prioritize one's own life. Therefore, the evacuation guidance unit 110e determines that evacuation should be prioritized over merging when the urgency is equal to or higher than the threshold value, and that merging should be prioritized when the urgency is not higher than the threshold value. do.

The evacuation guidance unit 110e proceeds to step S25 when it is determined that the urgency is equal to or higher than the threshold value, and the evacuation guidance unit 110e proceeds to step S19 when it is determined that the urgency is not equal to or higher than the threshold value.

[Step S19] The evacuation guidance unit 110e determines whether or not there is a person who wishes to join. The evacuation guidance unit 110e proceeds to step S25 when it is determined that there is no merging applicant, and proceeds to step S20 when it is determined that there is a merging applicant.

[Step S20] The acquisition unit 110c acquires the position information of the current position of the person who wishes to join. The acquisition unit 110c refers to the position information server 160 using the telephone number of the person who wants to join as a key, and acquires the position information of the current position of the person who wants to join.

[Step S21] The analysis unit 110d analyzes the alarm information. The analysis unit 110 generates a keyword indicating the current position of the merging applicant based on the acquired position information of the merging applicant, and the generated keyword indicating the current position of the merging applicant and the storage unit 110b are stored in advance. The warning information is analyzed based on the information (keyword) used for the analysis of the stored warning information, and the outline of the event at the current position of the person who wishes to join is specified.

[Step S22] The evacuation guidance unit 110e determines whether or not the merging applicant needs to evacuate. The evacuation guidance unit 110e determines whether or not the event that occurred based on the urgency determination table and the outline of the event at the current position of the merging applicant requires evacuation.

The evacuation guidance unit 110e proceeds to step S25 when it is determined that the merging applicant does not need to evacuate, and proceeds to step S23 when it is determined that the merging applicant needs to evacuate.

[Step S23] The evacuation guidance unit 110e specifies an evacuation range based on the current position of the merging applicant and the outline of the event at the current position of the merging applicant (for example, the estimated arrival time of the tsunami). For example, the evacuation guidance unit 110e specifies the position of the GPS coordinates within a predetermined range that can be evacuated from the current position of the person who wishes to join within the estimated arrival time as the evacuation range.

[Step S24] The acquisition unit 100c acquires information on evacuation site candidates (one or more evacuation areas) of those who wish to join. The acquisition unit 100c requests the evacuation site information server 140 to acquire the evacuation site from the evacuation site table under the acquisition condition that the evacuation site is within the range specified in step S23 and can respond to the influence of the event. , Acquire evacuation site candidates according to the warning information.

[Step S25] The evacuation guidance unit 110e executes a guidance location determination process for determining an evacuation site (guidance location) from evacuation site candidates (one or more evacuation sites). The guidance location determination process will be described in detail later with reference to FIG.

[Step S26] The evacuation guidance unit 110e executes the secondary guidance based on the specified guidance location. The secondary induction will be described in detail later with reference to FIG.
Next, the guidance location determination process will be described. FIG. 15 is a flowchart of the guidance location determination process in the second embodiment. The guidance location determination process is a process performed in step S25 of the evacuation guidance process.

[Step S31] The evacuation guidance unit 110e determines whether or not there is an evacuation site candidate for the person who wishes to join. The evacuation guidance unit 110e proceeds to step S32 when there is no evacuation guidance place candidate for the merging applicant, and proceeds to step S35 when there is an evacuation guidance place candidate for the merging applicant.

[Step S32] The acquisition unit 100c acquires base station information at the current position and the position around the evacuation site candidate.
[Step S33] The evacuation guidance unit 110e calculates (estimates) the expected number of evacuees for each evacuation site candidate. For example, the evacuation guidance unit 110e calculates (estimates) the expected number of evacuees based on the number of currently connected terminals (congestion degree) around the evacuation site candidate.

[Step S34] The evacuation guidance unit 110e determines the guidance location (evacuation site) based on the calculated estimated number of evacuation sites for each evacuation site candidate, the number of people that can be accommodated for each evacuation site candidate, and the distance from the current position. The guidance location determination process is terminated. For example, the evacuation guidance unit 110e determines the evacuation site candidate closest to the current position among the evacuation sites where the expected number of evacuees is lower than the number of people that can be accommodated as the guidance location.

[Step S35] The acquisition unit 100c acquires base station information at the current positions of the evacuees and those who wish to join, and at positions around the evacuation site candidates.
[Step S36] The evacuation guidance unit 110e calculates (estimates) the expected number of evacuees for each evacuation site candidate. For example, the evacuation guidance unit 110e calculates (estimates) the expected number of evacuees based on the number of currently connected terminals (congestion degree) around the evacuation site candidate.

[Step S37] The evacuation guidance unit 110e determines whether or not there is an overlap between the evacuation site candidate of the evacuee and the evacuation site candidate of the merging applicant.
The evacuation guidance unit 110e proceeds to step S38 when it is determined that there are overlapping evacuation site candidates, and proceeds to step S39 when it is determined that there are no overlapping evacuation site candidates.

[Step S38] The evacuation guidance unit 110e is between the specified overlapping evacuation site candidates, the calculated estimated number of evacuation site candidates, the number of evacuation site candidates that can be accommodated, and the evacuees and those who wish to join. The guidance location (evacuation site) is determined based on the distance from the point (position), and the guidance location determination process is completed.

For example, the evacuation guidance unit 110e determines the evacuation site candidate that is the closest to the intermediate point among the evacuation site candidates that are overlapping evacuation site candidates and the expected number of evacuees is lower than the number of people that can be accommodated. do. If the evacuation guidance unit 110e is an overlapping evacuation site candidate with the shortest distance and there is no evacuation site candidate whose expected evacuation number is lower than the number of people that can be accommodated, the expected number of evacuees is smaller than the number of people that can be accommodated. Among the evacuation site candidates with a low value, the evacuation site candidate with the shortest distance from the intermediate point is determined as the guidance location, and the guidance location determination process is completed.

[Step S39] The evacuation guidance unit 110e is based on the calculated estimated number of evacuees for each evacuation site candidate, the number of people that can be accommodated for each evacuation site candidate, and the distance from the intermediate point (position) between the evacuees and those who wish to join. The guidance location (evacuation site) is determined, and the guidance location determination process is completed. The evacuation guidance unit 110e determines the evacuation site candidate closest to the intermediate point among the evacuation site candidates whose expected number of evacuees is lower than the number of people that can be accommodated, and ends the guidance location determination process.

In this way, the evacuation guidance system 100 can prevent the risk of evacuating to an unaccommodated evacuation site by calculating the expected number of evacuees based on the number of currently connected terminals (congestion degree) of the base station. In addition, the evacuation guidance system 100 can facilitate merging after evacuation by preferentially determining the evacuation site candidate closest to the intermediate point as the guidance location (based on the position information of the person who wishes to join). , The position close to the current position of the person who wishes to join can be determined as the guidance place, and the meeting after evacuation can be facilitated). In particular, the evacuation guidance system 100 preferentially determines overlapping evacuation site candidates as guidance locations, so that those who wish to join can join at the evacuation site if they are also using the system.

Next, the generation of the screen to be displayed at the time of secondary guidance will be described. FIG. 16 is a flowchart of the secondary guidance screen generation process in the second embodiment.
The secondary guidance screen generation process is a process performed in step S26 of the evacuation guidance process.

[Step S41] The acquisition unit 110c acquires the position information of the current position of the evacuee.
[Step S42] The acquisition unit 110c acquires map information.
[Step S43] The acquisition unit 110c acquires base station information at the current position and the position around the guidance location.

[Step S44] The evacuation guidance unit 110e determines whether or not there is a person who wishes to join. The evacuation guidance unit 110e proceeds to step S45 when it is determined that there is a merging applicant, and proceeds to step S46 when it is determined that there is no merging applicant.

[Step S45] The acquisition unit 110c acquires the position information of the current position of the person who wishes to join.
[Step S46] The evacuation guidance unit 110e is based on the map information, the guidance location, the position information of the current position of the evacuees, the position information of the current position of the person who wishes to join, and the current position and the base station information at the position around the guidance location. A secondary guidance screen (evacuation site guidance screen) displaying the degree of congestion per unit area (for example, calculated based on the number of currently connected terminals / communication range) is generated, and the secondary guidance screen generation process is terminated. The degree of congestion may be displayed by being able to select ON or OFF.

Here is a diagram showing an example of a secondary guidance screen. FIG. 17 is a diagram (No. 1) showing an example of the secondary guidance screen in the second embodiment. FIG. 18 is a diagram (No. 2) showing an example of the secondary guidance screen in the second embodiment. FIG. 19 is a diagram (No. 3) showing an example of the secondary guidance screen in the second embodiment.

The secondary guidance screen 280 is an example of a screen when there are no applicants for merging and the display of the degree of congestion is turned off.
The secondary guidance screen 280 includes a map display 280a and an evacuation information display 280b as display contents. The map display 280a displays a map that maps the current position, the guidance location, and the recommended route (for example, the shortest route) to the guidance location. The evacuation information display 280b displays the name of the evacuation site, the estimated evacuation time to the evacuation site, the estimated distance, and the like.

The secondary guidance screen 290 is an example of a screen when there are no applicants for merging and the display of the degree of congestion is turned on.
The secondary guidance screen 290 includes a map display 290a and an evacuation information display 280b as display contents. The map display 290a maps the current position, the guidance location, and the recommended route to the guidance location, and indicates that the degree of congestion per unit area calculated from the number of currently connected terminals / communication range is shaded (for example, the darker the congestion, the more crowded). The map displayed by) is displayed. In this way, the evacuation guidance system 100 can grasp the congested route by displaying the degree of congestion.

The secondary guidance screen 300 is an example of a screen in which there are people who wish to join and the display of the degree of congestion is turned off.
The secondary guidance screen 300 includes a map display 300a and an evacuation information display 280b as display contents. The map display 300a displays a map that maps the current positions of evacuees and those who wish to join, the guidance location, and the recommended route to the guidance location. In this way, the evacuation guidance system 100 can also display the current position of the merging applicant so that the evacuation status of the merging applicant can be grasped. As a result, the evacuation guidance system 100 can facilitate the merging of the evacuees and those who wish to join.

The present invention is not limited to the above-described embodiment as it is, and the components can be modified and embodied within a range that does not deviate from the gist at the implementation stage. In addition, various inventions can be formed by an appropriate combination of the plurality of components disclosed in the above-described embodiment. For example, all the components shown in the embodiments may be combined as appropriate. In addition, components across different embodiments may be combined as appropriate. As described above, various modifications and applications are possible within a range that does not deviate from the purpose of the invention.

1 Evacuation guidance system 2 1st acquisition unit 2a Alarm information 3 2nd acquisition unit 3a Location information 4 Analysis unit 5 Evacuation guidance unit

Claims (3)

A first acquisition unit that acquires alarm information including an event that has occurred, an area that may be affected by the event, and an outline of the event in the area.
The second acquisition department that acquires the location information of the target person who guides evacuation,
An analysis unit that analyzes the alarm information based on the keywords that can be included in the alarm information prepared in advance and the position information and specifies the outline of the event at the current position of the target person.
A first storage unit that stores an evacuation site by associating the location information with an outline of the event that can be handled.
A second storage unit that stores information on a person who wants to join the target person and a terminal capable of acquiring position information held by the person who wants to join.
A third acquisition unit that acquires the position information of the person who wishes to join via the terminal, and
Based on the position information of the person who wants to join and the specified current position, the intermediate point between the target person and the person who wants to join is specified, and is closest to the intermediate point and before the current position. Evacuation guidance that can correspond to the outline of the above-mentioned event, identifies the evacuation site located within a predetermined range from the current position from the first storage unit, and guides the target person to the specified evacuation site. An evacuation guidance system equipped with a department. The evacuation unit, prior to induction into the refuge identifying the previous SL subject, informs the guidance message that is prepared in advance in accordance with the outline of the event,
The evacuation guidance system according to claim 1. The computer
Obtain alarm information including an event that has occurred, an area that may be affected by the event, and an outline of the event in the area.
Acquire the location information of the target person who will guide evacuation,
The alarm information is analyzed based on the keywords that can be included in the alarm information prepared in advance and the position information, and the outline of the event at the current position of the target person is specified.
With reference to the information of the merging applicant who the target person wishes to join and the second storage unit which stores the terminal capable of acquiring the position information held by the merging applicant, the position information of the merging applicant can be obtained. Obtained via the terminal
Based on the position information of the merging applicant and the specified current position, an intermediate point between the target person and the merging applicant is specified.
With reference to the first storage unit that stores the evacuation site in association with the position information and the outline of the event that can be dealt with, the event that is closest to the intermediate point and at the current position. The evacuation area, which can correspond to the outline and is located within a predetermined range from the current position, is specified from the first storage unit.
Guide the subject to the identified evacuation site,
Evacuation guidance method.

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