JP2013089224A - Refuge-from-tsunami supporting system, refuge-from-tsunami supporting method, refuge-from-tsunami supporting apparatus, and control method and control program for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To notify each individual user of an appropriate refuge destination and a refuge route thereto as support to refuge from a tsunami menacing user's present position when the relative safety of every geographical point varies over time.SOLUTION: A refuge-from-tsunami supporting apparatus for supporting each user who carries a communication terminal in user's refuge travel from a tsunami sets a score of multiple indicators related to the safety level on the basis of present position information, user's walking or running speed, map information and expected arrival time and with the refuge travel time of the user needing refuge taken into consideration, calculates a predictable safety level indicating the level of safety at each point on a map from the score of multiple indicators, generates a refuge destination candidate and a refuge route candidate from a present position indicated by the present position information on the user needing refuge to the refuge destination candidate on the basis of the predictable safety level at each point on the map, and transmits to the user-carried communication terminal the generated refuge destination candidate and the refuge route candidate via a network. And a destination where the predictable safety level surpasses a first threshold is prescribed as the refuge destination candidate.

Description

  The present invention relates to a technique for supporting user evacuation from a tsunami that occurs when an earthquake occurs.

  In the above technical field, as disclosed in Patent Document 1, a technique for generating a flood hazard map using fine digital elevation data is known.

JP 2004-340743 A

  However, the above-described prior art only simulates the inundation situation when a flood occurs based on the rainfall that can be measured, and cannot cope with a tsunami in which measurement errors vary greatly and complicatedly.

  Looking at the damage caused by the Great East Japan Earthquake on March 11, 2011, its destructive power far beyond the prediction of the previous tsunami hazard map, the vastness of the flooded area, the destruction of the world's largest seawall, etc. I must feel it. In the future, the idea that evacuating to a safe evacuation area as soon as possible at the stage of the tsunami warning is the best decision to save lives has become the main opinion including experts. Yes.

  However, until now, evacuation areas have been set up uniformly for all people in a certain area, such as schools and public halls. Also, the shortest route on the map up to that point was presented as an evacuation route. Such a simple method could not cope with the unexpected scale of tsunami energy and topography, or the safety of evacuation sites and routes that change from moment to moment. In other words, this time, it became clear that fixing evacuation sites and evacuation routes is very dangerous.

  The objective of this invention is providing the technique which solves the above-mentioned subject.

In order to achieve the above object, an apparatus according to the present invention provides:
A tsunami evacuation support device for supporting evacuation from a tsunami of a user having a communication terminal,
Current position information acquisition means for acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating means for calculating a walking speed or a running speed,
Map information acquisition means for acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition means for acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety level predicted value calculating means for calculating a safety level predicted value indicating the level of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map Information generating means;
Support information transmitting means for transmitting the generated evacuation candidate site and the evacuation candidate route to the communication terminal of a user via a network;
With
The evacuation candidate information generation unit is characterized in that a place where the predicted safety level exceeds a first threshold is an evacuation candidate place.

In order to achieve the above object, the method according to the present invention comprises:
A method for controlling a tsunami evacuation support device that supports evacuation of a user having a communication terminal from a tsunami,
A current position information acquisition step of acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating step for calculating a walking speed or a running speed;
A map information acquisition step of acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition step of acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety degree predicted value calculating step for calculating a safety degree predicted value indicating the degree of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map An information generation step;
A support information transmitting step of transmitting the generated evacuation candidate site and the evacuation candidate route to the communication terminal that the user has via the network;
Including
In the evacuation candidate information generation step, a evacuation candidate site is defined as a location where the predicted safety value exceeds a first threshold value.

In order to achieve the above object, a program according to the present invention provides:
A control program for a tsunami evacuation support device that supports evacuation of a user having a communication terminal from a tsunami,
A current position information acquisition step of acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating step for calculating a walking speed or a running speed;
A map information acquisition step of acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition step of acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety degree predicted value calculating step for calculating a safety degree predicted value indicating the degree of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map An information generation step;
A support information transmitting step of transmitting the generated evacuation candidate site and the evacuation candidate route to the communication terminal that the user has via the network;
To the computer,
In the evacuation candidate information generation step, a evacuation candidate site is defined as a location where the predicted safety value exceeds a first threshold value.

In order to achieve the above object, a system according to the present invention provides:
A tsunami evacuation support system that supports user evacuation from a tsunami,
Current position information acquisition means for acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating means for calculating a walking speed or a running speed,
Map information acquisition means for acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition means for acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety level predicted value calculating means for calculating a safety level predicted value indicating the level of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map Information generating means;
Support information notifying means for notifying the generated evacuation candidate site and the evacuation candidate route;
With
The evacuation candidate information generation unit is characterized in that a place where the predicted safety level exceeds a first threshold is an evacuation candidate place.

In order to achieve the above object, the method according to the present invention comprises:
A tsunami evacuation support method for supporting user evacuation from a tsunami,
A current position information acquisition step of acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating step for calculating a walking speed or a running speed;
A map information acquisition step of acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition step of acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety degree predicted value calculating step for calculating a safety degree predicted value indicating the degree of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map An information generation step;
A support information notification step of notifying the generated evacuation candidate site and the evacuation candidate route;
Including
In the evacuation candidate information generation step, a evacuation candidate site is defined as a location where the predicted safety value exceeds a first threshold value.

  According to the present invention, it is possible to notify an appropriate evacuation site and evacuation route as evacuation support from a tsunami at the current position for each user while the safety of each point changes with time.

It is a block diagram which shows the structure of the tsunami evacuation assistance system which concerns on 1st Embodiment of this invention. It is a figure which shows the concept of the tsunami evacuation assistance which concerns on 1st Embodiment of this invention. It is a figure which shows the concept of the tsunami evacuation assistance which concerns on 1st Embodiment of this invention. It is a sequence diagram which shows the operation | movement procedure of the tsunami evacuation assistance system which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the portable terminal which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the portable terminal which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the portable terminal which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the portable terminal which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the car navigation apparatus which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the car navigation apparatus which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the car navigation apparatus which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the example of tsunami assistance information alerting | reporting to the car navigation apparatus which is a communication terminal which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of attribute information DB which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of the present position information which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of the moving speed information which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of map information DB which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of the tsunami arrival prediction time information which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of the multiple index | exponent for the safety degree prediction value which concerns on 1st Embodiment of this invention. It is a figure explaining calculation of user arrival prediction time concerning a 1st embodiment of the present invention. It is a figure which shows the structure of the safety degree prediction value calculation algorithm which concerns on 1st Embodiment of this invention, and candidate selection conditions. It is a figure explaining extraction of the evacuation candidate site and evacuation candidate route from the safety degree prediction value according to the first embodiment of the present invention. It is a figure explaining selection of the evacuation candidate site and evacuation candidate route which concern on 1st Embodiment of this invention. It is a figure explaining selection of an evacuation candidate route concerning a 1st embodiment of the present invention. It is a figure which shows the screening result of the evacuation candidate site and evacuation candidate route which concern on 1st Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the tsunami evacuation assistance apparatus which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the tsunami evacuation assistance apparatus which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the evacuation candidate site / evacuation candidate route selection process which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the evacuation candidate information generation and transmission process which concerns on 1st Embodiment of this invention. It is a block diagram which shows the hardware constitutions of the communication terminal which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the communication terminal which does not have the navigation function which concerns on 1st Embodiment of this invention. It is a flowchart which shows the process sequence of the communication terminal which has a navigation function which concerns on 1st Embodiment of this invention. It is a figure which shows the structure of the registration refuge route table which concerns on 2nd Embodiment of this invention. It is a flowchart which shows the process sequence of the selection process of the evacuation candidate site / evacuation candidate route with reference to the registration evacuation route table which concerns on 2nd Embodiment of this invention. It is a figure which shows the structure of the obstruction information table which shows the obstruction on the route | root which concerns on 3rd Embodiment of this invention. It is a flowchart which shows the process sequence of the screening process of the candidate evacuation route in consideration of the obstacle information table 2300 which concerns on 3rd Embodiment of this invention. It is a block diagram which shows the structure of the tsunami evacuation assistance system which concerns on 4th Embodiment of this invention. It is a block diagram which shows the structure of the tsunami evacuation assistance system which concerns on 5th Embodiment of this invention.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the constituent elements described in the following embodiments are merely examples, and are not intended to limit the technical scope of the present invention only to them.

[First Embodiment]
<Configuration of tsunami evacuation support system>
A tsunami evacuation support system 100 as a first embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 1, the tsunami evacuation support system 100 includes a tsunami evacuation support apparatus 110, a tsunami arrival prediction time providing server 130, a map information providing server 140, and communication of various users connected via a network 190. Terminals 150-170. Note that reference numeral 180 in FIG. 1 is an example of a shelter.

  The tsunami evacuation support apparatus 110 generates an evacuation candidate site, which is evacuation candidate information for each user, and an evacuation candidate route to the evacuation candidate site, which is generated from the current position information of each user and the predicted arrival time of each tsunami. To each user. The tsunami arrival prediction time providing server 130 is a map that changes from moment to moment based on the magnitude and position information of an earthquake that is the source of the tsunami, information from satellites, reconnaissance aircraft, maritime buoys, etc., and terrain information. Tsunami arrival prediction time to each point is calculated and notified (see FIG. 9). In addition, about calculation of the tsunami arrival prediction time by the tsunami arrival prediction time provision server 130, the detailed explanation in this embodiment is abbreviate | omitted. Actually, for relatively small areas such as towns and villages, numerical simulations of tsunamis are performed in advance from information such as the magnitude and topography of earthquakes or information obtained from the Japan Meteorological Agency, etc., and this is the current embodiment. The tsunami arrival prediction time is acquired and used. The map information providing server 140 correlates and provides sea level information of each point and information such as whether each point is a building, road, or river in detailed map information of each region (see FIG. 8). The communication terminals 150 to 170 for various users include a communication terminal 150 for a single user, a communication terminal 160 for a user group composed of a plurality of users, and a communication terminal 170 for a vehicle. In addition, a user's form is not limited to these. For example, all other forms such as bicycles and wheelchairs are included.

  In the present embodiment, the evacuation candidate site including the evacuation site 180 and the evacuation candidate route to the evacuation candidate site are found based on the current position of each user and the predicted arrival time of each tsunami. Then, safe evacuation candidate sites and evacuation candidate routes are selected from the found candidates, and guidance is provided to support user evacuation. According to the present embodiment, while the safety of each point changes with time, an appropriate evacuation area and evacuation route can be notified for each user as evacuation support from the tsunami at the current position. The tsunami evacuation support device 110 may be a device that covers a wide area, but preferably covers a forecast area, covers a municipality, or covers a narrower area.

<Configuration of tsunami evacuation support device>
The structure of the tsunami evacuation assistance apparatus 110 of this embodiment is demonstrated in detail according to FIG.

  The communication control unit 111 communicates with the user communication terminals 150 to 170 and the servers 130 and 140 via the network 190. The attribute information acquisition unit 112 acquires attribute information registered in advance in the attribute information DB 113 or attribute information transmitted from the communication terminals 150 to 170. In the attribute information DB 113, for example, user attribute information ranging from a user's gender and age to a vehicle owned by the user is stored in association with the user ID (see FIG. 6).

  The current position information acquisition unit 114 acquires the user's current position information obtained by the user's communication terminal based on, for example, a signal from a GPS satellite. Then, the movement speed calculation unit 115 calculates the movement speed of the user from the difference between the position information at two different time points (preferably, the current time and the previous time) and the time difference (see FIG. 7B). The arrival prediction time acquisition unit 116 acquires, from the tsunami arrival prediction time providing server 130, the tsunami arrival prediction time at each point in the area where the user is present (see FIG. 9). The map information acquisition unit 117 acquires the map information of the target area from the map information DB 118 or from the map information providing server 140 when the map information DB 118 does not exist. The map information DB 118 stores map information including the altitude of each point in the target area centered on the target position (see FIG. 8).

  The safety degree predicted value calculation unit 119 calculates the position coordinates (latitude of each point) on the map information from the current position information and moving speed of the user, the map information, the predicted arrival time of the tsunami at each point, and the attribute information of the user. , Longitude) to generate a plurality of indices 119a (see FIG. 10A). Then, a plurality of indices are calculated, and a safety degree predicted value 119b is calculated in association with each point position coordinate (latitude, longitude) (see FIG. 12). The evacuation candidate information generation unit 120 selects the evacuation candidate site and the evacuation candidate route 120a from the current position to the evacuation candidate site based on the safety degree prediction value 119b of each point calculated by the safety degree prediction value calculation unit 119 ( 12 to 15). Here, the evacuation candidate sites and the evacuation candidate routes 120a are selected according to a plurality of different conditions, and two or three recommended evacuation candidate sites and recommended evacuation candidate routes are generated.

  Upon receiving the evacuation candidate site and evacuation candidate route 120b from the evacuation candidate information generation unit 120, the support information transmission unit 121 generates support information and transmits the support information to the communication terminal having the corresponding communication terminal ID. The support information includes display screen information obtained by superimposing evacuation candidate sites and evacuation candidate routes on a map, notification information including warnings and tsunami information, display screen information of guidance information for guiding users, and audio information. In addition, on the display screen, a display screen on which evacuation candidate sites and evacuation candidate routes are superimposed so as to be identifiable is generated. Identifiable includes differences in color and lines.

  In addition, in this embodiment, it does not mention the detail about alerting | reporting feature points, such as a target building and a signboard, as a user's evacuation assistance. However, this process is a natural process for the user guidance / navigation process, and is included in the user guidance / navigation process of the present embodiment.

《Concept of Tsunami Evacuation Support》
Next, the concept of the tsunami evacuation support according to the present embodiment will be described according to FIGS. 2A and 2B.

  FIG. 2A is an example of selecting the evacuation candidate site and the evacuation candidate route at the current time 15:22 when the predicted arrival time of the tsunami due to the earthquake that occurred at 15:12 is 15:50.

  The lower diagram of FIG. 2A is map information of the target area, and the current location corresponding to the current position information is shown. Longitude and latitude are taken as the plane axes of XY. The middle diagram of FIG. 2A is a conceptual diagram of the predicted safety value calculated for each point on the map according to the present embodiment. For each point on the plane of longitude and latitude, the safety degree prediction value is shown in a bar graph shape as a three-dimensional Z axis. For the predicted safety level of the Z-axis, an evacuation area threshold (Th1) for selecting an evacuation area and an evacuation route threshold (Th2 <Th1) for selecting an evacuation route are set. .

  First, in order to select an evacuation candidate site, a location where a predicted safety value exceeding the evacuation site threshold (Th1) is spread within a predetermined range is set as an evacuation candidate site. In FIG. 2A, the evacuation site is the first evacuation candidate site and the hill is the second evacuation candidate site, where the safety level prediction value protrudes from the evacuation site threshold (Th1). Further, in order to select an evacuation candidate route, the current location and the location that is the evacuation candidate location are connected, and a point sequence that exceeds the evacuation route threshold (Th2) is set as the evacuation candidate route. In FIG. 2A, the second evacuation candidate route that connects the current location and the evacuation site and has the staircase but the first evacuation candidate route and the staircase is selected, and the third evacuation candidate route that connects the current location and the hill is selected. The upper diagram of FIG. 2A is an example of a screen informing the user of the selected evacuation candidate sites and evacuation candidate routes superimposed on the map.

  FIG. 2B is an example of selecting an evacuation candidate site and an evacuation candidate route at 15:42, 14 minutes after FIG. 2A.

  The lower diagram of FIG. 2B is a map similar to FIG. 2A, but the current location has changed. The middle diagram in FIG. 2B shows the result of calculating the predicted safety level at each point on the map at 15:32. There is no change in the predicted safety level of evacuation shelters and hills, but the predicted safety level at points along the road to determine whether or not to become an evacuation candidate route is because the estimated time of tsunami arrival is approaching, or It is changing due to information that has become clearer in scale. For example, for a bridge over a river, the safety level prediction value is already less than the threshold for evacuation route (Th2) because the tsunami goes back up the river earlier. As a result, the first evacuation candidate route and the second evacuation candidate route toward the evacuation site in FIG. 2A that need to cross this river are excluded from the evacuation candidate routes. Therefore, shelters that do not have evacuation candidate routes are excluded from the first evacuation site. Therefore, in FIG. 2B, the hill that was the second evacuation candidate site in FIG. 2A becomes the first evacuation candidate site, and the route far from the river among the routes to the hill is selected as the first evacuation candidate route. The upper part of FIG. 2B is an example of a screen informing the user of the selected evacuation candidate sites and evacuation candidate routes superimposed on the map.

  As described above, in this embodiment, the current position and current time, the predicted arrival time and estimated tsunami arrival time at each point, the distance from the coast of each point and the distance from the river, etc. The score is calculated to obtain a predicted safety level. As a result, evacuation to evacuation shelters was recommended at the current location at 15:22, but evacuation to higher ground was recommended at the current location at 15:32. For example, if the user had reached closer to the bridge at 15:32, it may be recommended to cross the bridge and go to the shelter. On the other hand, if it is not possible to move almost from the current location in FIG. 2A even at 15:32 (circled point in FIG. 2B), an evacuation candidate route that is temporarily turned back to the hill as indicated by a broken line may be recommended. In this way, the appropriate evacuation candidate site and evacuation candidate route are notified to the user based on the predicted safety value of each point that changes from moment to moment.

<< Operation procedure of tsunami evacuation support system >>
FIG. 3 is a sequence diagram showing an operation procedure 300 of the tsunami evacuation support system 100 according to the present embodiment. In the present embodiment, tsunami evacuation support for a user registered in advance is described as an example, but the present invention is not limited to this.

  First, in step S301, member registration information including user attribute information is transmitted from the communication terminal to the tsunami evacuation support apparatus 210. In step S303, the tsunami evacuation assistance apparatus 110 stores the communication terminal ID and attribute information in the attribute information DB 113 in association with the user ID based on the received member registration information. Then, in step S305, the tsunami evacuation support apparatus 110 downloads the evacuation support information processing application to the communication terminal of the user registered as a member. The evacuation support information processing application has different functions depending on whether the communication terminal is a portable terminal, whether the portable terminal is a high-functional model, or a car navigation device installed in a car. Is an application program including

  When the member registration is completed, the communication terminal recognizes the current position information based on the signal from the GPS satellite in step S307, and notifies the tsunami evacuation support apparatus 210 of the current position information in step S309. In step S311, the tsunami evacuation support apparatus 110 updates the current position information in association with each received registered communication terminal. This notification and update of the current position information may be performed when a predetermined time interval or an area movement on the map is detected. With this notification and update, it is possible to track where the communication terminal of the registered user is currently located (where the user is).

  In step S313, it is assumed that the Japan Meteorological Agency and the like have announced that there is a risk of a tsunami due to an earthquake and have been notified to the tsunami evacuation support apparatus 210. In step S315, the tsunami evacuation support apparatus 210 selects a communication terminal of a user in the area where the tsunami warning / warning is issued as the evacuation support information transmission destination. Thereafter, the evacuation support information is continuously notified until the evacuation is completed while tracking the current position of the selected evacuation support information transmission destination.

  First, in step S317, the tsunami evacuation support apparatus 210 transmits earthquake information and a tsunami warning (warning) to the communication terminal that is the evacuation support information transmission destination. And when there is no map information of a corresponding area, the tsunami evacuation assistance apparatus 210 acquires corresponding map information from the map information provision server 140 in step S319. In step S321, the communication terminal that has received the earthquake information and the tsunami warning (warning) activates the evacuation support information processing application. Here, if there is an evacuation support information request instruction from the user, the communication terminal transmits an evacuation support information request to the tsunami evacuation support apparatus 210 in step S323. Note that the evacuation support information transmission service from the tsunami evacuation support apparatus 210 is started even if there is no instruction for requesting evacuation support information from the user.

  In step S325, the tsunami evacuation support apparatus 110 generates evacuation support information including each evacuation candidate site and evacuation candidate route for each user in the area where the tsunami warning / warning is issued. For the generation of this evacuation support information, the predicted tsunami arrival time at each point in the target area provided from the tsunami arrival prediction time providing server 130 is used. Subsequently, in steps S327 and S329, the evacuation support information is transmitted from the tsunami evacuation support apparatus 110 to the corresponding communication terminal. The evacuation support information includes map information, evacuation candidate site information, and evacuation candidate route information. If the communication terminal is a navigation device, the map information is already held in the communication terminal, so only the evacuation candidate site information and the evacuation candidate route information are transmitted. In step S331, the communication terminal notifies the received evacuation support information. It is desirable that the information is notified by voice together with a screen in which the candidate evacuation site and the candidate evacuation route are superimposed on the map.

  In step S333, it is determined whether or not the current position of the user represents a safe evacuation area, and generation and transmission of evacuation support information are repeated until arrival. When it is determined that the user has reached a safe evacuation area, in step S333, the tsunami evacuation support apparatus 110 notifies the communication terminal of completion of evacuation. In step S335, the communication terminal that has received the evacuation completion notifies the user of the evacuation completion.

《Tsunami support information notification example》
(Notification to mobile terminal)
With reference to FIG. 4A-FIG. 4D, the example of tsunami assistance information alerting | reporting to the portable terminal which is the communication terminals 150 and 160 which concerns on this embodiment is shown.

  FIG. 4A shows a display screen and sound when a large tsunami warning is issued and the first evacuation candidate site and evacuation candidate route are notified (for example, 2:46:01 pm). In the upper part of the display screen 410, the user's current location (marked with ☆), two evacuation candidate sites X and Y, an evacuation candidate route to the evacuation candidate site X (solid line), and an evacuation candidate route to the evacuation candidate site Y (Dashed line) is superimposed on the map. Also, at the bottom of the display screen 410, the time until the estimated tsunami arrival time (30 minutes) and the time required when the target user evacuates on the evacuation candidate route to each evacuation candidate site are displayed. Yes. Furthermore, it is displayed that there is a staircase on the evacuation candidate route to the second evacuation candidate site Y.

  From the speaker at the bottom of the communication terminal, there is a voice saying “A large tsunami warning has occurred. Please evacuate.”

  FIG. 4B shows a display screen and sound at the time of proceeding toward the evacuation candidate site X (for example, 2:50:18 pm). On the display screen 420, an image of the evacuation area direction from the current location is displayed at the top. In the middle of the display screen 420, the user's current location (*), two evacuation candidate locations X and Y, an evacuation candidate route to the evacuation candidate location X (solid line), and an evacuation candidate route to the evacuation candidate location Y are displayed. (Dashed line: route different from FIG. 4A) is displayed superimposed on the map. Also, at the bottom of the display screen 420, the time until the predicted arrival time of the tsunami (20 minutes remaining) and the time required when the target user evacuates on the evacuation candidate route to each evacuation candidate site are displayed. Yes. As in FIG. 4A, it is displayed that there is a staircase on the evacuation candidate route to the second evacuation candidate site Y.

  From the speaker at the bottom of the communication terminal, a voice saying “Go straight 100 meters” is flowing.

  FIG. 4C shows a display screen and sound at the time (for example, 2:55:51 pm) when the vehicle proceeds to the branch point between the evacuation candidate site X and the evacuation candidate site Y. The display screen 430 displays an image of the evacuation area direction from the current location at the top. In the middle of the display screen 430, the user's current location (*), one evacuation candidate site Y, and an evacuation candidate route (solid line) to the evacuation candidate site Y are displayed superimposed on the map. Further, at the bottom of the display screen 430, the time until the predicted tsunami arrival time (15 minutes remaining) and the time required when the target user evacuates the evacuation candidate route to the evacuation candidate site Y are displayed. . 4A and 4B, it is displayed that there is a staircase on the evacuation candidate route to the evacuation candidate site Y.

  From the speaker at the bottom of the communication terminal, the first evacuation site has been changed from X to Y and the reason is “turn right. Go to a safer shelter.” Be guided by voice.

  FIG. 4D shows a display screen and sound when the user reaches the evacuation candidate site Y (for example, 3:05:51 pm). On the display screen 430, the actual arrival position of the tsunami in this area is displayed on the upper part of the display screen 430, with the first wave arrival line (middle line) and the maximum wave arrival line (bold line) superimposed on the map. In the example of FIG. 4D, if the first evacuation candidate site X is used, it is considered that the maximum wave arrival line has caused damage. Also, at the bottom of the display screen 430, it is reported that the evacuation has been completed with the message “I am relieved.

  The speaker at the bottom of the communication terminal is also alerting you with a voice saying “You are safe.”

  As described above, according to the present embodiment, the predicted safety value at each point is recalculated based on the information and situation at that time at the arrival point due to the user's evacuation, and appropriate evacuation candidate sites and evacuation candidate routes are obtained. Since re-sorting is possible, more reliable and safe evacuation guidance is possible.

  If the navigation function using the map can be executed on the mobile terminal, navigation using the navigation application of the mobile terminal is possible.

(Notification to car navigation system)
With reference to FIG. 5A-FIG. 5D, the example of tsunami assistance information alerting | reporting to the car navigation apparatus which is the communication terminal 170 which concerns on this embodiment is shown.

  FIG. 5A shows a display screen and sound when a large tsunami warning is issued and the first evacuation candidate site and the evacuation candidate route are notified (for example, 2:46:01 pm). On the right side of the display screen 510, the user's current location (car), two evacuation candidate sites A and B, an evacuation candidate route to the evacuation candidate site A (solid line), and an evacuation candidate route to the evacuation candidate site B (Dashed line) is superimposed on the map. Furthermore, it is warned that it is dangerous to go straight along the coast on the first three-way road. Further, on the left side of the display screen 510, the time until the predicted tsunami arrival time (30 minutes remaining) and the required time when the candidate evacuation routes to each evacuation candidate site are evacuated by car are displayed.

  From the speaker of the car navigation system, there is a voice saying, “A large tsunami warning has occurred. Please evacuate.”

  FIG. 5B shows a display screen and sound at the time when the vehicle has advanced to the front of the three-way (for example, 2:46:11 pm). On the right side of the display screen 520, the user's current location (vehicle) and the evacuation candidate route (solid line) to the evacuation candidate site A are displayed superimposed on the left map. Also, on the right side, it is clearly shown which direction the user is guiding on the video from the current location of the user. On the left side of the display screen 50, the time until the predicted tsunami arrival time (30 minutes) and the time required for evacuating the candidate evacuation route to each evacuation candidate site are displayed.

  From the speaker of the car navigation system, there is a voice saying “Turn left 20 meters ahead”.

  FIG. 5C shows a display screen and audio when the vehicle approaches the branch point between the first evacuation candidate site A and the second evacuation candidate site B (for example, 2:55:31 pm). On the right side of the display screen 520, the user's current location (car), the evacuation candidate route (solid line) to the evacuation candidate site B, and the evacuation candidate route (dashed line) to the evacuation candidate site A are displayed superimposed. Yes. That is, from the calculation of the predicted safety value at this point, the guidance is changed not to the nearby evacuation candidate site A but to the evacuation site B that is higher and safer as an evacuation site. For example, if the vehicle has not yet reached the current location in FIG. 5C due to traffic jams or obstacles, the vehicle may be guided to the evacuation candidate site A as it is. As described above, according to the current time and the current position, the evacuation candidate sites and the evacuation candidate routes are more safely selected based on the predicted safety level at each point.

  From the car navigation system's speaker, there is a guidance voice saying "I will guide you to a safer evacuation center."

  FIG. 5D shows a display screen and sound at the time when the car has stopped moving because of being involved in a traffic jam (for example, 3:05:45 pm). On the right side of the display screen 520, the user's current location (car) and a traffic congestion warning are superimposed on the left side. On the right hand side, you are instructed to abandon your car and evacuate to the rooftop of a nearby building. That is, as it is displayed on the left part of the display screen 520, it is another ten minutes until the tsunami arrives, so the evacuation to a nearby building is guided. For example, in this embodiment, the distance to a high-rise building is also included in one of the multiple indicators, and this alarm is controlled to be issued at a location where there is a high-rise building nearby. It is possible to prevent dangers such as none or far away. Furthermore, if the index is set so that the height of the building, which is safe against the height of the tsunami, is taken into account, safer guidance can be achieved.

  The speaker of the car navigation system hears the voice of guidance “Please evacuate to the rooftop of a nearby building.”

  Note that according to the present embodiment, the evacuation support information transmitted to the car navigation device can basically be guided by a function installed in the car navigation device if there are evacuation candidate sites and evacuation candidate routes. is there.

<< Data structure to be used >>
Hereinafter, a configuration of various data used in the present embodiment and a generation method thereof will be described.

(Attribute information DB)
FIG. 6 is a diagram showing a configuration of the attribute information DB 113 according to the present embodiment. Note that the configuration of the attribute information DB 113 is not limited to FIG.

  610 in FIG. 6 is attribute information associated with each user. Corresponding to user ID 611, communication terminal ID 612, specific information 613 such as address / phone number / gender / age, physical state information 614 such as physical fitness information and health information, information 615 whether the evacuation method is walking or vehicle, etc. Is memorized. If the user belongs to a group, the group ID 616 is stored.

  620 in FIG. 6 is attribute information associated with each group. Corresponding to the group ID 621, communication terminal ID 622, specific information 623 such as address / phone number / group type, state information 624 such as the number of people and configuration, information 615 whether the evacuation method is walking or vehicle, etc. are stored. . The group type is, for example, a nursing home, a nursery school, or a hospital. Such a group type requires a walking speed in consideration of a slow person different from the walking speed in the case of one user. Or, conversely, because they are a group, it is possible for one person to become a late person earlier by helping each other. like this. Evacuation ability information as a group that takes into account the state change due to the group is stored.

(Current location information)
FIG. 7A is a diagram showing a configuration of current position information 700-1 according to the present embodiment. The configuration of the current position information 700-1 is not limited to FIG. 7A.

  In the current position information table 710 of FIG. 7A, current position information 712 notified from a communication terminal possessed by a user or group is stored in a set of (latitude, longitude) in association with the user ID or group ID 711. . Further, a tsunami warning / warning flag 713 indicating the type of whether the current position information 712 is included in an area where a tsunami warning or tsunami warning is issued, whether it is a warning or a warning is stored. The tsunami warning / warning flag 713 is set based on an alarm / warning information storage table 720 that stores warnings and warnings received from the Japan Meteorological Agency or the like.

  The warning / warning information storage table 720 has flags “11”, “10”, and “01” corresponding to the currently used large tsunami warning, tsunami warning, and tsunami warning as alarm / type 721, respectively. Assigned. The flag “00” is a flag indicating that nothing is output. Then, the area information 723 where each flag 722 is output is stored. Therefore, when the current position information 712 is included in any of the regional information 723, the flag 722 is set to the tsunami warning / warning flag 713.

(Movement speed information)
FIG. 7B is a diagram showing a configuration of moving speed information 700-2 according to the present embodiment. In addition, the structure of the moving speed information 700-2 is not limited to FIG. 7B. The moving speed is a walking speed in the case of walking, and a traveling speed in the case of a car or the like.

  In FIG. 7B, current position information 733 and previous position information 734 are stored in a set of (latitude and longitude) in association with the user ID / group ID 732 sorted by the tsunami warning / warning flag 731. From the distance between them and the elapsed time, the moving speed 735 of the current user or group can be calculated. Here, the reason why the user ID / group ID 732 is sorted by the tsunami warning / warning flag 731 is to preferentially support the users in the area where the large tsunami warning (11) is issued.

  The moving speed 735 that changes from moment to moment is desirably calculated in real time as described above. However, in order to simplify the process, the moving speed of each user or each group is registered in advance as attribute information, and using it, the predicted safety value is calculated, but only the current position information is used each time. You may control to update.

(Map information)
FIG. 8 is a diagram showing the configuration of the map information DB 118 according to this embodiment. In addition, the structure of map information DB118 is not limited to FIG.

  Reference numeral 810 in FIG. 8 is identification information for specifying an area of map information. In the identification information 810, a center position 815 indicated by a combination of a prefecture 812, a city / county 813, a town / village 814, and (latitude, longitude) is stored in association with the map information ID 811. It is not limited to the center position 815, and may be a target singular point such as the upper left of the area or a government office in the area.

  Corresponding to each of the identification information 810, map data 820 is stored as data at each point in the area. In FIG. 8, two examples 820-1 and 820-2 are shown. The map data 820 is associated with the latitude 821 and longitude 822 of each point, and the altitude 823 of the point, whether it is on the road 824, whether it is a field or vacant ground 825, an obstacle building / house roof, river・ It is stored on the waterway, other obstacles 826, etc. FIG. 8 shows an example in which each point on the map is stored every 0.1 seconds for both latitude / longitude and about 3.1 m for latitude / 2.5 m for longitude. It corresponds to accuracy and is not limited to this. In tsunami evacuation assistance, the above values are judged to be sufficient. For example, a digital elevation model (DEM: Digital Elevation Model) or a digital surface model (DSM: Digital Surface Model) obtained from satellite images, or a digital terrain model (DTM: Digital Terrain Model) excluding buildings is 10 m. It can be acquired in units (for example, about 30 m in 1 second). In Japan, altitude data of 5m mesh is provided by further combining aerial laser surveying (see http://www1.gsi.go.jp/geowww/Laser_indexttml: Geographical Survey Institute website). Furthermore, a unit of 0.1 second is provided in a mountain map or the like.

(Tsunami arrival prediction time information)
FIG. 9 is a diagram showing a configuration of tsunami arrival prediction time information 900 according to the present embodiment. In addition, the structure of the tsunami arrival prediction time information 900 acquired from the tsunami arrival prediction time providing server 130 is not limited to FIG.

  910 of FIG. 9 is tsunami arrival prediction time information for each town / village. Corresponding to prefectures 911, cities / counties 912, towns / villages 913, tsunami arrival prediction time 914, predicted tsunami height 915, predicted tsunami energy 916, predicted earthquake energy 917, etc. are stored. Has been.

  Moreover, 920 in FIG. 9 is tsunami arrival prediction time information at each point. A tsunami arrival predicted time 923 and a predicted tsunami height 924 are stored in association with each point in the area represented by the combination of the latitude 921 and the longitude 922 as shown in FIG.

  In addition, when the predicted arrival time of the tsunami is in the prediction zone unit or in a wider range than the point of this embodiment, it is based on the distance from each known point such as a tsunami observation point to each point. The predicted tsunami arrival time 914 to each point at the present time may be calculated. Such calculation may also take into account the distance and direction from the coastline, the distance and direction from the river, the direction and width of the road, etc., as shown in the index of FIG. 10A. For example, in Japan, tsunami arrival prediction times and height predictions are provided in units of forecast zones that divide the coast of the country into 66 (http://www.seisvol.kishou.go.jp/eq/know/ tsunami / ryouteki.html: Refer to the Japan Meteorological Agency website, and the information acquisition format is http://xml.kishou.go.jp/revise.html). Such tsunami arrival prediction times and height predictions are realized by accumulating numerical simulations corresponding to various conditions such as the magnitude and characteristics of the earthquake, the depth of the sea, and the topography as a DB. In addition, tsunami arrival prediction times and height predictions in relatively small areas such as towns and villages are prepared as a database by numerical simulations corresponding to various conditions such as topography and vegetation from finer coastlines, and the current tsunami Corresponding to the information, it is provided as predicted tsunami arrival time and height at each point.

(Multiple indicators for safety prediction)
FIG. 10A is a diagram showing a configuration of a plurality of indices 119a for safety degree prediction values according to the present embodiment. Note that the configuration of the multiple index 119a for the safety degree prediction value set by the safety degree prediction value calculation unit 119 is not limited to FIG. 10A. For each index, a score that is a basis for calculating a predicted safety level at each point is stored. The score may be weighted in advance corresponding to the degree of contribution to the calculation of the safety degree predicted value, or may be set independently and weighted when calculating the safety degree predicted value.

  The multiple indices 119a in FIG. 10A store the following information in this embodiment in association with each point in the area represented by the combination of latitude 1001 and longitude 1002, similar to those shown in FIGS. Is done. The tsunami arrival predicted time 1003, tsunami predicted height 1004, tsunami predicted energy 1005, and earthquake predicted energy 1006 obtained as shown in FIG. 9 are stored. Further, based on the distance from the user's current position information to this point and the moving speed of the user, the predicted arrival time 1007 at this point and the time difference between the predicted arrival time 1003 and the predicted arrival time of the tsunami A score of 1008 is stored. Further, as conditions for the degree of safety against the tsunami assumed from the information on the map of this point, for example, the altitude 1009, the distance and direction 1010 from the coastline, the distance and direction 1011 from the river, the direction of the road at the point on the road And a score such as width 1012 is stored. Further, for example, a score such as a distance to a high-rise building that can be a temporary refuge is stored in consideration of safety in an emergency.

  Note that other acquirable information necessary for more accurate and safe evacuation support is added in consideration of the degree of contribution to the safety level. In FIG. 10A, an index common to each point is shown, but a dynamic index such as an unnecessary index or a newly added index may be considered depending on each point.

(User arrival prediction time)
FIG. 10B is a diagram for explaining calculation of the predicted user arrival time 1007 according to this embodiment.

  Similar to that shown in FIG. 10A, user current position information 1023 expressed by latitude and longitude in association with latitude 1021 and longitude 1022, distance 1024 from the user at this point, user movement speed 1025 (movement of FIG. 7B) Corresponding to speed 735). Then, by adding an evacuation time, which is a value obtained by dividing the distance 1024 from the user to this point by the user moving speed 1025, to the current time, a predicted user arrival time 1007 at this point is calculated.

  In the case of a group, the estimated arrival time of the group is calculated in the same manner. In this case, who in the group is calculated in advance corresponding to the type and configuration of the group. For example, calculation based on the latest person is selected.

(Safety degree prediction value calculation algorithm)
FIG. 11 is a diagram showing a configuration of the predicted safety degree calculation algorithm and candidate selection condition 1100 according to the present embodiment. Note that the configurations of the predicted safety degree calculation algorithm and the candidate selection condition 1100 are examples, and are not limited to FIG.

  For the safety degree predicted value calculation algorithm and candidate selection condition 1100, as information for determining different algorithms and selection conditions, for example, tsunami prediction energy 1101, earthquake epicenter 1102 (or distance from the epicenter to the target area or point) However, the predicted earthquake energy 1103 is used, but the present invention is not limited to this.

  In association with these pieces of information, for example, a predicted safety degree calculation algorithm 1104 including addition / subtraction / multiplication / division of a plurality of indices, and a weight 1105 of each index at the time of calculation are stored. In addition, in an extreme example, when the user arrival prediction time is slightly later than the tsunami arrival prediction time or there is almost no difference, the weighting is such that the contribution to the safety degree prediction value by other indicators is large. However, it is not suitable for shelters and routes. As described above, even when one index does not consider another index, the weight is set.

  Also, from the predicted safety value at each point of the calculation result, the first threshold Th1 (1106) for selecting an evacuation area for selecting an evacuation area, and smaller than the first threshold Th1 for selecting an evacuation area for selecting an evacuation route. The second threshold Th2 (1107) for evacuation route selection is stored. Further, it is used for selecting a recommended evacuation candidate route to be recommended from the selected evacuation candidate routes (see FIG. 14), and is intermediate between the first threshold Th1 for evacuation site selection and the second threshold Th2 for evacuation route selection. The third threshold value for evacuation route selection (1108) is stored. In order to generate more reliable and safe evacuation support information, a more detailed threshold value may be provided.

(Extraction of evacuation candidate sites and evacuation candidate routes)
FIG. 12 is a diagram illustrating extraction of evacuation candidate sites and evacuation candidate routes from the predicted safety level 119b according to the present embodiment.

  In FIG. 12, the safety degree prediction value 1203 calculated by the safety degree prediction value calculation algorithm of FIG. 11 is stored in association with the latitude 1201 and longitude 1202 of each point.

  A point where the predicted safety level 1203 is larger than the first threshold Th1 for evacuation site selection in FIG. 11 is selected as an evacuation candidate site. In FIG. 12, two evacuation candidate sites HP01 and HP02 are selected. In addition, since it is not an evacuation area only in the range of one point (3.1 m × 2.5 m in the example of FIG. 8), the evacuation candidate area is determined when the predetermined area exceeds the first threshold Th1 for evacuation area selection. desirable. Note that the selected evacuation candidate site is not the final evacuation candidate site. For example, if the evacuation candidate route to the evacuation candidate site cannot be selected or selected, the evacuation candidate site is not selected. In the present embodiment, since the safety level prediction value and the selection or selection of the evacuation candidate route change from moment to moment, the evacuation candidate location also changes sequentially accordingly. However, since it is dangerous to change the evacuation candidate site every time it is moved, the predicted safety value of the evacuated candidate site so far will be lowered, or the predicted safety value much higher than the evacuated candidate site so far It is necessary to make a control such as changing when a problem occurs.

  Further, the column from the current position to the evacuation candidate site where the safety degree prediction value 1203 is larger than the second evacuation route selection threshold value Th2 in FIG. 11 is selected as the evacuation candidate route. In FIG. 12, the evacuation candidate route HL011 following the evacuation candidate site HP01 from the current position is selected. Not all the selected evacuation candidate routes are selected as final evacuation candidate routes. A more reliable and safe evacuation candidate route is selected and notified to the user on the basis of the third threshold value for evacuation route selection in FIG. It is desirable that the change of the evacuation route is controlled so as not to cause confusion for the user, similarly to the evacuation candidate site.

(Selection of evacuation candidate site and evacuation candidate route)
FIG. 13 is a diagram for explaining selection 1300 of candidate evacuation sites and candidate evacuation routes according to this embodiment. In FIG. 13, the evacuation candidate site and the evacuation candidate route selected from the predicted safety value in FIG. 12 match the evacuation candidate site that matches the pre-registered evacuation site or the road information obtained from the map information. An example in which an evacuation candidate route is preferentially set as an evacuation candidate site and an evacuation candidate route is shown.

  A match 1302 between the evacuation candidate site ID 1301 selected according to FIG. 12 and the registered evacuation site is determined. Also, a match 1304 between the evacuation candidate route ID 1303 selected according to FIG. 12 and the road information is determined. As a result, an evacuation candidate site that has an evacuation candidate route that matches the road information and that matches the registered evacuation site is selected as an evacuation candidate site / evacuation candidate route 1305 that is preferentially recommended.

  In FIG. 13, the registered shelter and road information are used as the candidate selection conditions, but other conditions shown in the second embodiment and the third embodiment may be considered.

(Selection of evacuation candidate routes)
FIG. 14 is a diagram for explaining selection 1400 of candidate evacuation routes according to the present embodiment. The evacuation candidate route selection condition shown in FIG. 14 is an example, and is not limited to FIG.

  In FIG. 14, the horizontal axis represents the movement distance and movement time from the current position to the evacuation candidate site. For example, in the case of a simple simple increase in the predicted safety value along the route, such as the evacuation candidate route HL011 to the evacuation candidate site HP01 selected in FIG. 13, the evacuation candidate route HL011 is selected as the recommended evacuation candidate route. Sort as Further, when the first threshold for evacuation site selection is exceeded at a short distance or early time as in the evacuation candidate route HL012, the evacuation candidate route HL012 is selected as the recommended evacuation candidate route.

  On the other hand, when the predicted safety level rises rapidly in a short distance or in a short time like the evacuation candidate route 1401, but falls below the third threshold for evacuation route selection after that, it is excluded from the evacuation candidate route. Further, even when the safety degree prediction value hardly increases in the first movement as in the evacuation candidate route 1402, it is excluded from the evacuation candidate route. Further, evacuation candidate routes whose safety level prediction values decrease from the current position are also excluded. However, if no evacuation candidate site or evacuation candidate route remains as a result of this selection, an evacuation candidate route that appears to be safer may be selected from these evacuation candidate routes as a next best measure.

  As described above, even a column of points that simply exceed the second threshold for selecting an evacuation route may be excluded from the evacuation candidate route depending on a change in the predicted safety value along the route. With this process, a more reliable and safe evacuation candidate route is recommended.

(Selection results of evacuation candidate sites and evacuation candidate routes)
FIG. 15 is a diagram showing a selection result of evacuation candidate sites and evacuation candidate routes 120a according to the present embodiment.

  In the selection result of the evacuation candidate site and the evacuation candidate route 120a, the evacuation candidate site ID 1502 and the evacuation candidate route ID 1503 that are selected and selected according to the order of the recommended evacuation candidate ranking 1501 are stored.

<Hardware configuration of tsunami evacuation support device>
FIG. 16 is a block diagram illustrating a hardware configuration of the tsunami evacuation assistance apparatus 110 according to the present embodiment.

  In FIG. 16, a CPU 1410 is a processor for arithmetic control, and implements each functional component of the tsunami evacuation support apparatus 110 of FIG. 1 by executing a program. The ROM 1620 stores fixed data and programs such as initial data and programs. Further, the communication control unit 111 controls communication with the communication terminals 150 to 170, the tsunami arrival predicted time providing server 130, or the map information providing server 140 via the network.

  The RAM 1640 is a random access memory that the CPU 1610 uses as a work area for temporary storage. The RAM 1640 has an area for storing data necessary for realizing the present embodiment. 1641 is a user ID that identifies the user of the communication partner. Reference numeral 1642 denotes a communication terminal ID being used by the user. 700-1 / 700-2 is the current position information / movement speed shown in FIGS. 7A and 7B. 1643 is the map information of the selected area. 900 is the predicted tsunami arrival time shown in FIG. 119a is a plurality of indices shown in FIG. 10A. 119b is the predicted safety value shown in FIG. Reference numerals 1106 to 1108 denote the first threshold value to the third threshold value shown in FIG. 120a is the evacuation candidate site / evacuation candidate route shown in FIG.

  The storage 1650 stores a database, various parameters, or the following data or programs necessary for realizing the present embodiment. Reference numeral 113 denotes the attribute information information DB shown in FIG. Reference numeral 118 denotes the map information DB shown in FIG. 1100/1140 is the safety degree predicted value calculation algorithm, the evacuation candidate information selection condition, and the like shown in FIGS.

  The storage 1650 stores the following programs. In 1651, a tsunami evacuation support program for controlling the entire tsunami evacuation support apparatus 110 is stored. In 1652, each information acquisition module for acquiring each information such as predicted tsunami arrival time in the tsunami evacuation support program 1651 is stored. In 1653, a safety degree prediction value calculation module for calculating a safety degree prediction value in the tsunami evacuation support program 1651 is stored. In 1654, an evacuation candidate information generation module for generating evacuation bulletin information based on the safety degree prediction value in the tsunami evacuation support program 1651 is stored. In 1655, a support information transmission module for transmitting support information in the tsunami evacuation support program 1651 is stored.

  Note that FIG. 16 shows only data and programs essential to the present embodiment, and data and programs not related to the present embodiment are not shown.

《Tsunami Evacuation Support Device Processing Procedure》
FIG. 17 is a flowchart showing a processing procedure of the tsunami evacuation assistance apparatus 110 according to the present embodiment. This flowchart is executed by the CPU 1610 of FIG. 16 while using the RAM 1640, and implements each functional component of the tsunami evacuation support apparatus 110 of FIG.

  First, in step S1711, it is determined whether a tsunami warning or tsunami warning from the Japan Meteorological Agency or the like has been received. In step S1731, it is determined whether position information has been received from communication terminals 150-170. In step S1741, it is determined whether member registration information for tsunami evacuation support has been received.

  When the tsunami warning or tsunami warning is received, the process proceeds to step S1713, and the registered member who is in the area where the tsunami warning or tsunami warning is issued is identified as the local information of the tsunami warning or warning and the current position of the user. Sort based on information. Next, in step S1715, the current position information of each user, the map information of each area where warnings and warnings have been issued, the attribute information of each user, and the tsunami arrival time information of each point in the area, Obtain from DB, communication terminal or server. In step S1717, for each user, a score of a plurality of indices is set based on the information obtained in step S1715, and a safety degree prediction value at each point in the region is calculated from the score of the plurality of indices.

  In step S1719, based on the calculated safety predicted value of each point, the evacuation candidate site and the evacuation candidate route are selected according to conditions such as the first threshold value to the third threshold value, and further recommended candidates are selected ( (See FIG. 18A). In step S1721, evacuation candidate information including the selected recommended evacuation candidate sites and evacuation candidate routes is generated and transmitted to the communication terminal of the target user (see FIG. 18B).

  On the other hand, if the position information is received from the communication terminals 150 to 170, the process proceeds to step S1733 to update the current position information of the user (see FIG. 7A). If the member registration information is received, the process proceeds to step S1743, and the attribute information received in association with the user ID is registered in the attribute information DB 113.

(Evacuation site / evacuation route selection process)
FIG. 18A is a flowchart showing the processing procedure S1719-1 of the candidate evacuation site / evacuation candidate route selection processing S1719 according to this embodiment.

  First, in step S1811, a point where the predicted safety level exceeds the first threshold (see FIG. 11) is set as a temporary evacuation candidate site. As described above, it is assumed that the location exceeds the first threshold at a predetermined range of points. In step S1813, if there is a candidate site that matches a pre-registered registered evacuation site, the evacuation candidate site is selected with priority.

  Next, a route that is a point sequence that connects the current position of the user and the selected candidate evacuation site and exceeds the second threshold (see FIG. 11) is set as a temporary evacuation candidate route. In addition, the selection of the evacuation candidate route is also required to be a predetermined width or more. The predetermined width varies depending on whether the evacuation is on foot or a car.

  In step S1817, an evacuation candidate site having no evacuation candidate route is excluded from candidates. Next, a route along the road in the map information is preferentially selected from the selected evacuation candidate routes. In step S1821, the selected evacuation candidate route is further prioritized based on safety conditions (see FIG. 14).

  The evacuation candidate sites and evacuation candidate routes selected in the above steps are stored in order of priority (see FIG. 15).

  Note that the processing order from step S1811 to S1821 is not limited to FIG. 18A, the evacuation candidate route may be selected first, the route without the evacuation candidate site may be excluded, or the exclusion of these candidates may be selected or prioritized. You may do it after attaching.

  In this way, among the evacuation candidate routes based on the sequence of points whose safety degree prediction value exceeds the second threshold value, the route matches the road information included in the map information, and the user can evacuate from the road information and attribute information. Routes determined to be selected as recommended evacuation candidate routes.

(Evacuation candidate information generation and transmission processing)
FIG. 18B is a flowchart showing a processing procedure of evacuation candidate information generation and transmission processing S1721 according to this embodiment.

  First, in step S1831, it is determined whether it is the transmission of the first evacuation candidate information. If it is initial transmission, it will progress to step S1835 and will transmit initial notification audio | voice with respect to the communication terminals 150-170. For example, “A large tsunami warning has been issued. Please evacuate” in FIG. 4A or FIG.

  Next, in step S1837, it is determined whether the destination communication terminal to which the evacuation candidate information is sent has an image editing function or a navigation function. Information regarding whether there is an image editing function or a navigation function may be determined from the model of the communication terminal or registered as attribute information. If the communication terminal has an image editing function, the process proceeds to step S1839, and the evacuation candidate site and the evacuation candidate route selected in step S1719 are transmitted to the communication terminal. The subsequent superimposition processing on the map or the navigation function is performed by the communication terminal.

  On the other hand, if there is no image editing function or navigation function, the tsunami evacuation support apparatus 110 transmits information for which processing has been completed to the communication terminal. For example, as an example of navigation, in step S1841, it is determined whether the current position of the user is along the evacuation candidate route. If not, an alarm is issued in step S1843 and a correction instruction is given (FIGS. 4A to 4D, FIG. This alarm is not shown in FIGS. 5A to 5D). In step S1845, the user's current position, evacuation candidate site, and evacuation candidate route are superimposed on the map so that the recommended order can be determined. Here, distinguishable includes different colors and different lines as shown in FIGS. 4A to 4D and FIGS. 5A to 5D. In step S1847, the superimposed map information is transmitted to the communication terminal as evacuation candidate information. The audio data necessary at this time is also transmitted.

  If it is determined in step S1831 that it is not the first transmission of evacuation candidate information but the second and subsequent times, the process proceeds to step S1833. In step S1833, it is determined whether there is a change in the evacuation candidate site or the evacuation candidate route from the previous evacuation support information. If there is no change, return without doing anything. If there is a change, the process proceeds to step S1835, and steps S1835 to S1947 are executed. Note that the voice notification in the second and subsequent steps S1835 changes corresponding to the notification of the change contents and the notification required at that point (see FIGS. 4A to 4D and FIGS. 5A to 5D).

  In FIG. 18B, navigation during evacuation (for example, see FIGS. 4B and 5B) is omitted because the processing procedure becomes complicated.

<< Hardware configuration of communication terminal >>
FIG. 19 is a block diagram illustrating a hardware configuration of the communication terminals 150 to 170 according to the present embodiment. FIG. 19 illustrates both a communication terminal having an image editing function and a navigation function and a communication terminal having no image editing function and a navigation function. In FIG. 19, a portion of a communication terminal having an image editing function and a navigation function is indicated by a broken line.

  In FIG. 19, a CPU 1910 is a processor for arithmetic control, and implements each functional component of the communication terminals 150 to 170 by executing a program. The ROM 1920 stores fixed data and programs such as initial data and programs. The communication control unit 1930 controls communication with the tsunami evacuation support apparatus 110 via the network. When the communication terminal has a navigation function, the communication control unit 1930 may receive the provision of map information of the area where the user is currently located directly from the map information providing server 140.

  The RAM 1940 is a random access memory that the CPU 1910 uses as a work area for temporary storage. The RAM 1940 has an area for storing data necessary for realizing the present embodiment. 1941 is a user ID that identifies a user who is using the communication terminal. 1942 is a communication terminal ID for specifying a communication terminal. 1943 is attribute information of the user input from the input unit or registered in advance. 1944 is current position information of the communication terminal acquired by the GPS function. 1945 is evacuation candidate information including the evacuation candidate site and the evacuation candidate route received from the tsunami evacuation support apparatus 110. 1946 is reception data received via the communication control unit 1930, and 1947 is transmission data transmitted via the communication control unit 1930. 1948 is input data input via the input / output interface 1960, and 1949 is output data output via the input / output interface 1960.

  The storage 1950 stores a database, various parameters, or the following data or programs necessary for realizing the present embodiment. Reference numeral 1951 denotes a map information DB held by a communication terminal having an image editing function and a navigation function. The storage 1950 stores the following programs. 1952 stores a communication terminal information processing program for controlling the entire communication terminal. 1953 stores a transmission / reception control module that controls transmission / reception of data via the communication control unit 1930 in the communication terminal information processing program 1952. 1954 stores an input / output control module for controlling data input / output via the input / output interface 1960 in the communication terminal information processing program 1952. In 1955, a tsunami evacuation support application downloaded at the time of member registration in the tsunami evacuation support apparatus 110 is stored. The tsunami evacuation support application differs depending on the model of the communication terminal and the functions possessed. The processing of the tsunami evacuation support apparatus 110, the tsunami evacuation support application, and the function that the communication terminal has in advance cooperate with each other in this implementation. Form of tsunami evacuation support is realized. 1956 is a navigation processing application stored when the communication terminal has a navigation function.

  The input / output interface 1960 interfaces input / output from various peripheral devices. A touch panel 1962, a keyboard 1963, a microphone 1965, and a GPS signal receiving unit 1966 are connected to the input / output interface 1960 as input devices. In addition, a display unit 1961 and a speaker 1964 are connected as output devices. The input / output devices can be changed depending on the functions required by the communication terminal, and are not limited to FIG.

  Note that FIG. 19 shows only data and programs essential to the present embodiment, and does not illustrate data and programs not related to the present embodiment.

<< Processing procedure of communication terminal >>
Hereinafter, the processing procedure of the communication terminal having no navigation function and the processing procedure of the communication terminal having the navigation function will be described separately.

(Processing procedure of communication terminal without navigation function)
FIG. 20A is a flowchart showing a processing procedure of a communication terminal having no navigation function according to the present embodiment, for example, a mobile phone. This flowchart is executed by the CPU 1910 of FIG. 19 using the RAM 1940, and implements each functional component of the communication terminal. Note that FIG. 20A does not illustrate functions of the communication terminal that are less relevant to the present embodiment.

  First, in step S2011, it is determined whether a tsunami warning or tsunami warning is received from the tsunami evacuation support apparatus 210. If a tsunami warning or tsunami warning is received, the process proceeds to step S2013 to start a tsunami evacuation support application. Note that the reception of the tsunami warning or tsunami warning is not limited to the tsunami evacuation support device 210, and if a tsunami warning or tsunami warning is received from either of them, the tsunami evacuation support application is started and the tsunami warning is received. It may be a procedure for making an inquiry to the evacuation support apparatus 210.

  In the tsunami evacuation support application, in step S2015, the current location information of the communication terminal acquired from the GPS signal is transmitted to the tsunami evacuation support apparatus 110. Next, in step S2017, it is determined whether the support information is received from the tsunami evacuation support apparatus 110. If it is reception of assistance information, in step S2019, the evacuation candidate site and the evacuation candidate route are displayed in an identifiable manner on the assistance information display unit 1961, and sound is output from the speaker 1964. If the support information is not received, the process proceeds to step S2021 to determine whether the evacuation completion information is received from the tsunami evacuation support apparatus 110. If it is not reception of evacuation completion information, it will return to step S2015 and will repeat the process of step S2015-S2021.

  The transmission of the current position information in step S2015 may be performed every predetermined period, or may be performed when a user instruction or other event occurs, or upon request from the tsunami evacuation support apparatus 110. In cooperation with the flowchart of FIG. 18B in the tsunami evacuation support apparatus 110, the support information is transmitted to the communication terminal when the evacuation candidate site or the evacuation candidate route is changed or when it is necessary to notify the user. It is controlled as follows. If evacuation completion information is received from the tsunami evacuation assistance apparatus 110, it will progress to step S2023 and will end a tsunami evacuation assistance application.

  In the present embodiment, only the tsunami evacuation support apparatus 110 has the judgment of completion of evacuation. That is, the evacuation completion cannot be instructed from the communication terminal. This is because, as has been experienced in the Great East Japan Earthquake, it is necessary to objectively determine whether the evacuation area is safe from the scale of the tsunami once it reaches the evacuation area. That is, the tsunami evacuation support application of the communication terminal is not terminated at the user's discretion until the tsunami evacuation support device 110 can confirm safety from all information.

  If it is not a tsunami warning or a warning, it is determined in step S2031 whether it is member registration. If it is member registration, it will progress to step S2033 and will transmit user information and attribute information to the tsunami evacuation assistance apparatus 110. FIG. In step S2035, the tsunami evacuation support application is downloaded and acquired from the tsunami evacuation support apparatus 110.

(Processing procedure of communication terminal with navigation function)
FIG. 20B is a flowchart showing a processing procedure of a communication terminal having a navigation function according to the present embodiment, such as a car navigation device. This flowchart is executed by the CPU 1910 of FIG. 19 using the RAM 1940, and implements each functional component of the communication terminal. Note that FIG. 20B also does not show the functions of the communication terminal that are less relevant to this embodiment.

  First, in step S2041, it is determined whether a tsunami warning or tsunami warning is received from the tsunami evacuation assistance apparatus 210. If a tsunami warning or tsunami warning is received, the process advances to step S2043 to activate a tsunami evacuation support application. As in FIG. 20A, the reception of the tsunami warning or tsunami warning is not limited to the tsunami evacuation support apparatus 210, and if a tsunami warning or tsunami warning is received from either, the tsunami evacuation support application May be a procedure for inquiring of the tsunami evacuation support apparatus 210.

  In the tsunami evacuation support application, in step S2045, the current position information of the communication terminal acquired from the GPS signal is transmitted to the tsunami evacuation support apparatus 110. Next, in step S2047, reception of support information from the tsunami evacuation support apparatus 110 is awaited. If it is reception of assistance information, a navigation processing application will be started in step S2049. Then, navigation is performed using the evacuation candidate site and the evacuation candidate route which are the received support information. In the navigation processing application, acquisition of the current position information and transmission of the current position information to the tsunami evacuation support apparatus 210 are performed as needed, but are not shown in FIG.

  In parallel with the navigation processing in step S2049, in step S2051, it is determined whether evacuation completion information has been received from the tsunami evacuation support apparatus 110. If the evacuation completion information is not received, the process proceeds to step S2053, and it is determined whether there is an instruction to change the support information from the tsunami evacuation support apparatus 110. If the support information is not changed, the process proceeds to step S2049, and the navigation process is continued without changing the evacuation candidate and the evacuation candidate route. On the other hand, if there is an instruction to change the support information, the process returns to step S2047, waits for the reception of the new changed support information, and performs a navigation based on the new evacuation candidate site and evacuation candidate route in step S2049. If evacuation completion information is received from the tsunami evacuation support apparatus 110, the process proceeds to step S2055, and the tsunami evacuation support application is terminated.

  The member registration procedure in steps S2061 to S2065 is the same as that in steps S2031 to S2035 in FIG.

[Second Embodiment]
Next, a tsunami evacuation support system according to the second embodiment of the present invention will be described. The tsunami evacuation support apparatus in the tsunami evacuation support system according to the present embodiment is different from the first embodiment in that selection of evacuation candidate routes is performed with reference to evacuation routes registered in advance. Since other configurations and operations are the same as those of the first embodiment, detailed descriptions of the same configurations and operations are omitted.

  According to the present embodiment, not only based on general criteria and conditions set in the apparatus, but also the evacuation sites and evacuation routes that have actually undergone training are preferentially selected, so it is safe for the user. Can provide more reliable evacuation support. In particular, according to the present embodiment, the evacuation route is not limited to a road, but a shortcut route in a public land, a private land such as a field or a garden that is regularly trained, or a shortcut that can be overcome during the route Routes can be selected. In this embodiment, evacuation routes that are actually used in relatively small areas such as towns and villages are recommended, so for those who are unfamiliar with the area that happens to be in this area due to travel or work It becomes very valuable information.

(Selecting evacuation candidate routes with reference to registered evacuation routes)
FIG. 21 is a diagram showing a configuration of the registered evacuation route table 2100 according to the present embodiment. Note that the registered evacuation route table 2100 is stored in, for example, the storage 1650 in FIG. 16, and is used to select evacuation candidate routes in the evacuation candidate information generation unit 120 in FIG.

  The registered evacuation route table 2100 is associated with the registered evacuation route ID 2101, the registrant 2102, evacuation route information 2103 indicating the evacuation route on the map, the attribute 2104 of the registered evacuation route, the number of evacuation exercises 2105 using the evacuation route, The last evacuation training date 2106 and the like are stored. The registered evacuation route attribute 2104 stores the width and inclination of the evacuation route, whether it is a road, a field, a vacant land, or another person's site.

  In this way, the registered evacuation route registered by the registrant is unknown because what is happening in the middle is compared with the evacuation candidate route selected and selected by the tsunami evacuation support apparatus 110 from the objective measurement information. It is recommended as a highly reliable evacuation candidate route that suppresses fluctuations and declines in safety. Moreover, if it restrict | limits on a road like 1st Embodiment, the evacuation route used as the shortcut which goes straight to an evacuation area through the field and the other person's site will be excluded. In the present embodiment, more appropriate selection can be made from the comparison between the attribute 2104 of the evacuation route and the attribute information of the evacuating user, and more safety and certainty can be obtained from the information of the number of evacuation drills 2105 and the last evacuation training date 2106 It can guarantee the sex. In particular, it is possible to provide appropriate support to users who are not guided to this area.

(Evacuation candidate route selection process)
FIG. 22 is a flowchart showing the processing procedure S1719-2 of the evacuation candidate site / evacuation candidate route selection processing S1719 with reference to the registered evacuation route table 2100 according to the second embodiment of the present invention.

  Since the first steps S1811 to S1817 are the same as those in FIG. 18A, description thereof will be omitted. In step S2219, an evacuation candidate route that matches the registered evacuation route registered in advance in the registered evacuation route table 2100 is preferentially selected from the evacuation candidate routes. Alternatively, when the part matches, only the part may be replaced with the registered evacuation route. Processing branches at step S2221 depending on whether there is a registered evacuation route. If there is a registered evacuation route, the process proceeds to step S1923 in FIG. 18A. If there is no registered evacuation route, the process proceeds to step S1919 in FIG. 18A. The subsequent processing is the same as in FIG.

[Third Embodiment]
Next, a tsunami evacuation support system according to a third embodiment of the present invention will be described. The tsunami evacuation support apparatus in the tsunami evacuation support system according to the present embodiment is different from the first embodiment and the second embodiment in that evacuation candidate routes are selected in consideration of obstacles. Here, the obstacle includes a fixed object such as a wall or a fence, and an object that changes every moment such as a traffic jam or accident of a car, a closed road due to construction or a disaster. Since other configurations and operations are the same as those in the first embodiment, detailed description thereof is omitted.

  According to the present embodiment, it is possible to avoid evacuating following an evacuation candidate route and suddenly hitting an obstacle and encountering a disaster.

(Selection of evacuation candidate routes considering obstacles)
FIG. 23 is a diagram showing a configuration of the obstacle information table 2300 indicating obstacles on the route according to the present embodiment. The obstacle information table 2300 is stored in, for example, the storage 1650 in FIG. 16, and is used to select evacuation candidate routes in the evacuation candidate information generation unit 120 in FIG.

  The obstacle information table 2300 stores the latitude 2302 and longitude 2303, the obstacle content 2304, the obstacle period 2305, and the recovery prediction 2306 as the position information in association with the obstacle ID 2301. For example, the obstacle content 2304 includes fixed obstacles such as walls and stairs, and fluid obstacles such as construction and traffic jams.

  These pieces of information that can be acquired in advance may be used in selecting an evacuation candidate route. However, fluid obstacle information dynamically changes the selection of evacuation candidate routes according to the sequentially notified and collected information. Therefore, it is used to select the final recommended evacuation candidate route. With such a configuration of the present embodiment, it is possible to appropriately cope with a situation that changes from moment to moment, and it is possible to notify safer evacuation support information.

(Evacuation candidate site / evacuation candidate route selection process)
FIG. 24 is a flowchart showing the processing procedure S1719-3 of the candidate evacuation site / evacuation candidate route selection processing S1719 in consideration of the obstacle information table 2300 according to the present embodiment.

  Since the first steps S1811 to S1815 are the same as those in FIG. 18A, description thereof will be omitted. If it is determined in step S2417 that there is an obstacle registered in the obstacle information table 2300 on the evacuation candidate route, the evacuation candidate route is excluded. Then, the process proceeds to step S1817 in FIG. 18A. The subsequent processing is the same as in FIG.

  As described above, in the present embodiment, road information for acquiring current road discontinuity information including vehicle traffic jam information, discontinuity information due to building collapse, discontinuity information due to cracks and liquefaction, and discontinuity information due to landslides. Has an acquisition unit. And if there are stairs, steep slopes or obstacles on the evacuation candidate route and it is judged that evacuation on the evacuation candidate route is impossible from the user attribute information, or there are stairs or obstacles on the evacuation candidate route In case of evacuation by vehicle, it is determined that evacuation is impossible.

[Fourth Embodiment]
Next, a tsunami evacuation support system according to the fourth embodiment of the present invention will be described. The tsunami evacuation support apparatus in the tsunami evacuation support system according to the present embodiment is not a tsunami evacuation support for pre-registered users, but an unspecified number of inquiring users as compared to the first to third embodiments. The difference is that the evacuation candidate site and the evacuation candidate route are notified. Since other configurations and operations are the same as those of the first to third embodiments, the same configurations and operations are denoted by the same reference numerals, and detailed description thereof is omitted.

  According to this embodiment, tsunami evacuation support information can be provided to an unspecified number of users who are not registered in advance.

<Configuration of tsunami evacuation support system>
FIG. 25 is a block diagram showing a configuration of a tsunami evacuation support system 2500 according to the present embodiment. Note that the difference from the first embodiment in the configuration of the tsunami evacuation support system 2500 according to this embodiment is that it does not have an attribute information DB for member registration in advance. Configurations that perform the same functions in other functional configuration units are denoted by the same reference numerals and description thereof is omitted.

  25 includes a user ID / communication terminal ID acquisition unit 2512. The user ID / communication terminal ID acquisition unit 2512 acquires a tsunami evacuation support request from an unspecified number of users who are not members. A configuration in which the user ID / communication terminal ID acquisition unit 2512 also acquires user attribute information as in the first embodiment is possible. However, it is desirable to process the attribute information and the like without any user input or communication processing while the tsunami warning or warning is actually issued.

  Therefore, the predicted safety level calculation unit 2519 of this embodiment basically sets the scores of the multiple indicators 2519a at each point in the area where the user is located without considering the attribute information of the user, and the predicted safety level 1519b. Is calculated. As described above, since there is no attribute information in the present embodiment, the selection of the evacuation candidate sites and the evacuation candidate routes 2520a (2520b) of the evacuation candidate information generation unit 2520 is also clearer than the first embodiment in that the user attributes are clear. Since it cannot be specified, it is inevitable that it will be selected in a wide range. The configuration and processing of the other basic safety level predicted value calculation unit 2519 and evacuation candidate information generation unit 2520 are the same as those in the first embodiment, and thus description thereof is omitted.

[Fifth Embodiment]
Next, a tsunami evacuation support system according to the fifth embodiment of the present invention will be described. In the Great East Japan Earthquake, communication terminals such as mobile phones could not be used, and it was announced that there were an overwhelming number of people who obtained tsunami information from the radio. The present embodiment is configured in consideration of this. The tsunami evacuation support apparatus in the tsunami evacuation support system according to the present embodiment is different from the first to fourth embodiments in that a user carries an audio receiving device (including a radio). Since other configurations and operations are the same as those in the first to fourth embodiments, the same configurations and operations are denoted by the same reference numerals, and detailed description thereof is omitted.

  According to the present embodiment, support information for tsunami evacuation can be provided to the user more reliably by using cheaper equipment.

<Configuration of tsunami evacuation support system>
FIG. 26 is a block diagram showing a configuration of a tsunami evacuation support system 2600 according to this embodiment. Note that the difference from the first embodiment in the configuration of the tsunami evacuation support system 2600 according to the present embodiment is that a voice receiving device such as a radio has a function for oscillating voice radio waves related to evacuation candidate sites and evacuation candidate routes. Is a point. Configurations that perform the same functions in other functional configuration units are denoted by the same reference numerals and description thereof is omitted.

  The tsunami evacuation support apparatus 2610 in FIG. 26 includes a support information voice transmission unit 2621 that receives the evacuation candidate site and the evacuation candidate route 120b output from the evacuation candidate information generation unit 120, and generates and transmits voice of the support information. . Note that the voice of the support information is a voice guidance that is generated based on the current position information of the user and the map information and can be understood without a screen. Therefore, the support information voice transmitting unit 2621 includes a voice synthesizer that generates a sentence to be voice-reported from the evacuation candidate site and the evacuation candidate route 120, the current position information of the user, and the map information. In that case, it is desirable to register a template of sentences necessary for guidance of tsunami evacuation.

  The support information sound generated by the support information sound transmission unit 2621 of the tsunami evacuation support device 2610 is oscillated by the sound wave radio wave generation unit 2690 as a sound wave toward a sound receiving device (including radio). Note that the information transmission from the support information voice transmission unit 2621 to the voice radio wave oscillation unit 2690 may be a public network, but is preferably a specific line. Further, the audio wave oscillator 2690 may be a commercial radio broadcast station or a hypothetical radio broadcast station that is opened in an emergency. Alternatively, it may be a dedicated radio station in the town or village.

  On the other hand, in the voice receiving devices 2650 and 2660 such as radios possessed by the user, the current position information is acquired from the signal from the GPS satellite and the tsunami evacuation support device 2610 receives the radio wave from the audio wave oscillation unit 2690. It is necessary to add the function to transmit. Such addition can be realized with a simple structure at low cost.

[Other Embodiments]
Although the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention. In addition, a system or an apparatus in which different features included in each embodiment are combined in any way is also included in the scope of the present invention. In addition, the present invention may be applied to a system composed of a plurality of devices, or may be applied to a single device.

  Furthermore, the present invention can also be applied to a case where an information processing program that implements the functions of the embodiments is supplied directly or remotely to a system or apparatus. Therefore, in order to realize the functions of the present invention on a computer, a control program installed in the computer, a medium storing the control program, and a WWW (World Wide Web) server that downloads the control program are also included in the scope of the present invention. include.

Claims (13)

A tsunami evacuation support device for supporting evacuation from a tsunami of a user having a communication terminal,
Current position information acquisition means for acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating means for calculating a walking speed or a running speed,
Map information acquisition means for acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition means for acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety level predicted value calculating means for calculating a safety level predicted value indicating the level of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map Information generating means;
Support information transmitting means for transmitting the generated evacuation candidate site and the evacuation candidate route to the communication terminal of a user via a network;
With
The evacuation candidate information generation means sets a place where the safety degree prediction value exceeds a first threshold as an evacuation candidate place, a tsunami evacuation support apparatus,   The evacuation candidate information generating means sets a evacuation candidate site that matches a pre-registered evacuation site as a recommended evacuation candidate site among the evacuation candidate sites whose safety degree prediction value exceeds the first threshold value. The tsunami evacuation support device according to claim 1.   The plurality of indicators related to the safety level are the time difference between the predicted arrival time of the user and the predicted arrival time of the tsunami at each point on the map, the distance from the current position of the user, the altitude, the distance from the coastline, and The tsunami evacuation support apparatus according to claim 1 or 2, comprising any one of a direction, a distance and direction from a river, and a direction and width of a road on a road.   The safety degree predicted value calculating means performs weighting corresponding to each score of the plurality of indices when setting each score of the plurality of indices or calculating the safety degree predicted value from the scores of the plurality of indices. The tsunami evacuation support apparatus according to any one of claims 1 to 3, further comprising a weighting unit.   The evacuation candidate information generation means is a point where the safety degree prediction value exceeds a second threshold value smaller than the first threshold value and connects the evacuation candidate site and the current position of the user indicated by the current position information. The tsunami evacuation support apparatus according to any one of claims 1 to 4, characterized in that the column of evacuation is a candidate evacuation route. The evacuation candidate information generating means includes the evacuation candidate route by a sequence of points where the safety degree prediction value exceeds the second threshold value,
The evacuation candidate route in which the predicted safety value simply increases along the route,
The evacuation candidate route in which the predicted safety value reaches a predetermined predicted safety value at a shorter distance along the route,
Evacuation candidate routes that match a preset evacuation route,
An evacuation route that at least partially matches the evacuation route registered in advance by the user, or
An evacuation candidate route that matches the road information included in the map information, and the evacuation candidate route that the user is determined to be evacuated from the road information and user attribute information;
The tsunami evacuation support device according to claim 5, wherein the tsunami evacuation support device is selected as a recommended evacuation candidate route. The evacuation candidate information generating means includes the evacuation candidate route by a sequence of points where the safety degree prediction value exceeds the second threshold value,
If the predicted safety value is larger than the second threshold value but smaller than the third threshold value along the route, it is not a recommended evacuation candidate route, or
If there are stairs, steep slopes or obstacles on the evacuation candidate route and it is determined that evacuation on the evacuation candidate route is impossible from the user attribute information, or there are stairs or obstacles on the evacuation candidate route. The tsunami evacuation support apparatus according to claim 5 or 6, wherein it is determined that evacuation is impossible when the vehicle is evacuated by a vehicle. Road information acquisition means for acquiring current road non-access information including at least one of vehicle traffic jam information, non-communication information due to building collapse, non-information due to cracks and liquefaction, and non-communication information due to landslides ,
8. The tsunami evacuation assistance apparatus according to claim 1, wherein the evacuation candidate information generation unit excludes a non-communication route from the evacuation candidate route in consideration of the road non-communication information. The support information transmitting unit generates a display screen in which the current position of the user indicated by the current position information, the evacuation candidate site, and the evacuation candidate route are superimposed on the map represented by the map information so as to be distinguishable. Having a display screen generating means;
When there is a change in the evacuation candidate site or the recommended evacuation candidate route due to a change in the current location information of the user, a notification voice notifying the change is transmitted together with the support information, and when there is no change in the evacuation candidate site and the recommended evacuation candidate route, the support Information is not transmitted, The tsunami evacuation assistance apparatus of any one of Claim 1 thru | or 8 characterized by the above-mentioned. A method for controlling a tsunami evacuation support device that supports evacuation of a user having a communication terminal from a tsunami,
A current position information acquisition step of acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating step for calculating a walking speed or a running speed;
A map information acquisition step of acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition step of acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety degree predicted value calculating step for calculating a safety degree predicted value indicating the degree of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map An information generation step;
A support information transmitting step of transmitting the generated evacuation candidate site and the evacuation candidate route to the communication terminal that the user has via the network;
Including
In the evacuation candidate information generation step, a tsunami evacuation support apparatus control method characterized in that a place where the predicted safety level exceeds a first threshold is an evacuation candidate area. A control program for a tsunami evacuation support device that supports evacuation of a user having a communication terminal from a tsunami,
A current position information acquisition step of acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating step for calculating a walking speed or a running speed;
A map information acquisition step of acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition step of acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety degree predicted value calculating step for calculating a safety degree predicted value indicating the degree of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map An information generation step;
A support information transmitting step of transmitting the generated evacuation candidate site and the evacuation candidate route to the communication terminal that the user has via the network;
To the computer,
In the evacuation candidate information generation step, a evacuation candidate site is a place where the predicted safety value exceeds a first threshold value. A tsunami evacuation support system that supports user evacuation from a tsunami,
Current position information acquisition means for acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating means for calculating a walking speed or a running speed,
Map information acquisition means for acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition means for acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety level predicted value calculating means for calculating a safety level predicted value indicating the level of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map Information generating means;
Support information notifying means for notifying the generated evacuation candidate site and the evacuation candidate route;
With
The evacuation candidate information generation means uses a place where the safety degree prediction value exceeds a first threshold as an evacuation candidate place. A tsunami evacuation support method for supporting user evacuation from a tsunami,
A current position information acquisition step of acquiring current position information of a user to be evacuated;
From a change in the current position information of the user, a moving speed calculating step for calculating a walking speed or a running speed;
A map information acquisition step of acquiring map information of a region including the user to be evacuated;
A predicted arrival time acquisition step of acquiring a predicted arrival time at which a tsunami reaches each point included in the map information;
Based on the current position information, the walking speed or the traveling speed, the map information, and the predicted arrival time, a score of a plurality of indicators related to safety is set in consideration of the evacuation time of the user to be evacuated A safety degree predicted value calculating step for calculating a safety degree predicted value indicating the degree of safety of each point on the map from the scores of the plurality of indicators,
An evacuation candidate for generating an evacuation candidate site and an evacuation candidate route from the current position indicated by the current position information to the user to be evacuated to the evacuation candidate site based on the predicted safety value of each point on the map An information generation step;
A support information notification step of notifying the generated evacuation candidate site and the evacuation candidate route;
Including
In the evacuation candidate information generating step, a tsunami evacuation support method characterized in that a place where the predicted safety level exceeds a first threshold is an evacuation candidate area.