JP2013195095A - Evacuation route output device, evacuation route output method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an evacuation route output device for generating an evacuation route that avoids a disaster zone.SOLUTION: An evacuation route output device includes: a disaster zone information storage unit 12 for storing disaster zone information indicating a disaster zone; an evacuation place information storage unit 13 for storing evacuation place information indicating an evacuation place; a map information storage unit 14 for storing map information being map-related information; a present location obtainment unit 15 for obtaining a present location; an evacuation route information generation unit 16 for generating evacuation route information being information related to an evacuation route that is a route from the present location obtained by the present location obtainment unit 15 to a position according to the evacuation place information and avoids a zone indicated by the disaster zone information; and an output unit 17 for outputting the map information and the evacuation route information.

Description

  The present invention relates to an evacuation route output device or the like that outputs an evacuation route that avoids a disaster area.

  Conventionally, a navigation device that generates and outputs a route to a desired destination is known (see, for example, Patent Document 1). By using the navigation device, for example, in the event of a disaster such as an earthquake, flood, tsunami, or fire, a route from the current position to the evacuation site can be generated and output.

JP 2011-220902 A

  However, the conventional navigation device can generate a route to an evacuation site, but does not consider disasters. For example, it passes through a dangerous area (for example, a flooded area or a tsunami area). There was also the possibility of generating a route to do.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an evacuation route output device and the like that can generate and output a route that can safely go to an evacuation site in the event of a disaster. And

In order to achieve the above object, an evacuation route output device according to the present invention includes a disaster location information storage unit that stores disaster location information that indicates the location of the disaster, and an evacuation location information storage that stores evacuation location information that indicates the evacuation location. A map information storage unit that stores map information that is information related to the map, a current position acquisition unit that acquires the current position, and a route from the current position acquired by the current position acquisition unit to the position of the evacuation site information An evacuation route information generation unit that generates evacuation route information that is information about an evacuation route that is a route that does not pass through the place indicated by the disaster area information, and an output unit that outputs map information and evacuation route information. It is provided.
With such a configuration, a route that does not pass through the affected area can be generated and output. As a result, it is possible to propose a route that can safely reach the evacuation site.

In the evacuation route output device according to the present invention, the disaster location information storage unit stores the disaster location information and the occurrence time of the disaster corresponding to the disaster location information, and the evacuation route information generation unit Evacuation related to an evacuation route that also generates a time and is a route from the current position to the position of the evacuation site information that does not pass the location indicated by the disaster site information after the occurrence time corresponding to the disaster site information Route information may be generated.
With such a configuration, even if the route passes through the disaster location, if the time passing through it is before the disaster occurrence time, a route passing through the disaster location can be generated. It becomes possible to propose a more appropriate evacuation route while ensuring safety.

In the evacuation route output device according to the present invention, the evacuation site information storage unit stores evacuation site information indicating two or more evacuation sites, and the evacuation route information generation unit does not exist at the location indicated by the disaster site information. Evacuation route information related to the evacuation route to the position indicated by the information may be generated.
With such a configuration, an evacuation route to a safe evacuation site can be generated.

Further, in the evacuation route output device according to the present invention, correspondence information that is information for associating condition information indicating a condition relating to a natural phenomenon with disaster candidate location information indicating a location to be damaged when the condition indicated by the condition information is met Corresponding to the condition information that is satisfied by the natural phenomenon information received by the natural phenomenon information received by the natural phenomenon information receiving unit, the natural phenomenon information receiving unit that receives the natural phenomenon information that is information related to the natural phenomenon A disaster location information setting unit that sets the disaster location information as disaster location information may be further included.
With such a configuration, it is possible to set disaster location information according to a natural phenomenon that may cause a disaster. Therefore, for example, even if the disaster location information related to the tsunami is not provided from the country or the local government, the disaster location information can be set using the information related to the natural phenomenon.

Further, in the evacuation route output device according to the present invention, the map information is information relating to a map having three-dimensional coordinate information, and an altitude value that is a coordinate value in the height direction, and a reception unit that receives a tsunami arrival altitude, A disaster location information generation unit that generates disaster location information indicating an area that is less than or equal to the arrival altitude received by the reception unit and stores the information in a disaster location information storage unit may be further provided.
With such a configuration, it is possible to generate disaster location information according to the tsunami. Therefore, for example, even if the disaster location information about the tsunami is not provided from the country or the local government, the disaster location information can be generated using the tsunami arrival altitude.

Further, in the evacuation route output device according to the present invention, the map information is information relating to a map having three-dimensional coordinate information, and an altitude value that is a coordinate value in the height direction and a reception unit that receives the flood inundation height of the flood, There may be further provided a disaster location information generating unit that generates disaster location information indicating an area below the flooding altitude received by the reception unit and stores the information in the disaster location information storage unit.
With such a configuration, it is possible to generate disaster location information corresponding to a flood. Therefore, for example, even if the disaster location information about the flood is not provided from the country or the local government, the disaster location information can be generated using the flood inundation height.

The evacuation route output device according to the present invention may further include a receiving unit that receives the disaster location information and accumulates it in the disaster location information storage unit.
With such a configuration, for example, it is possible to receive disaster location information provided from the country, local government, etc., and use it to generate an evacuation route.

  The evacuation route output device and the like according to the present invention can generate and output a route that can safely go to an evacuation site in the event of a disaster.

The block diagram which shows the structure of the evacuation route output apparatus by Embodiment 1 of this invention. The flowchart which shows operation | movement of the evacuation route output apparatus by the embodiment The flowchart which shows operation | movement of the evacuation route output apparatus by the embodiment The figure which shows an example of the evacuation place information in the embodiment The figure which shows an example of the disaster location information etc. in the embodiment The figure for demonstrating the production | generation of the evacuation route in the embodiment The figure for demonstrating the production | generation of the evacuation route in the embodiment The figure for demonstrating the production | generation of the evacuation route in the embodiment The figure for demonstrating the production | generation of the evacuation route in the embodiment The figure which shows an example of the display in the embodiment The block diagram which shows another example of a structure of the evacuation route output apparatus by the embodiment The flowchart which shows another example of operation | movement of the evacuation route output apparatus by the embodiment The figure for demonstrating the production | generation of the disaster location information in the embodiment The block diagram which shows another example of a structure of the evacuation route output apparatus by the embodiment The flowchart which shows another example of operation | movement of the evacuation route output apparatus by the embodiment The figure which shows an example of the correspondence information in the embodiment The figure which shows an example of the correspondence information in the embodiment The figure which shows an example of the correspondence information in the embodiment The figure which shows an example of the correspondence information in the embodiment Schematic diagram showing an example of the appearance of the computer system in the embodiment The figure which shows an example of a structure of the computer system in the embodiment

  Hereinafter, an evacuation route output device according to the present invention will be described using embodiments. In the following embodiments, components and steps denoted by the same reference numerals are the same or equivalent, and repetitive description may be omitted.

(Embodiment 1)
An evacuation route output device according to Embodiment 1 of the present invention will be described with reference to the drawings. The evacuation route output device according to the present embodiment generates and outputs a route to the evacuation site without passing through the disaster site.

  FIG. 1 is a block diagram showing a configuration of an evacuation route output device 1 according to the present embodiment. The evacuation route output device 1 according to the present embodiment includes a receiving unit 11, a disaster location information storage unit 12, an evacuation location information storage unit 13, a map information storage unit 14, a current position acquisition unit 15, and evacuation route information. A generation unit 16 and an output unit 17 are provided. The evacuation route output device 1 is a device that is directly used by an evacuee (hereinafter also referred to as “evacuee”), such as a mobile phone, a portable information terminal (eg, a PDA or a tablet computer), a navigation device. PND (Portable Navigation Device), portable personal computer, and the like may be used. Further, the evacuation route output device 1 may be a server that provides evacuation route information and the like described later to the device while communicating with a terminal device used by the refugee. Since it is unclear whether communication with the server can be ensured in the event of a disaster, the present embodiment will mainly describe the former case, but it goes without saying that the present invention is not limited to this.

  The receiving unit 11 receives the disaster location information. The receiving unit 11 accumulates the received disaster location information in the disaster location information storage unit 12. Here, the disaster location information is information indicating the location of the disaster. A disaster-stricken place (stricken area) is a place damaged by a disaster or a place to be damaged by a disaster in the future. Natural disasters caused by, for example, floods, fires, storms, tornadoes, earthquakes, tsunamis, storm surges, landslides, landslides, steep landslides, volcanic eruptions, debris flows, thunder, heavy snowfall, avalanches, and other abnormal natural phenomena It is. Further, the location of the disaster may be, for example, a planar location (region), a linear location (for example, a road section), or a dotted location (for example, a bridge or a tunnel). Etc.). The disaster location information may indicate the location of the disaster by coordinates, may be indicated by an address, or may be indicated by other information that can specify the location. The coordinates may be coordinates whose origin is a certain reference point (this coordinate may be a distance, for example), may be latitude / longitude, or may be information that can identify other positions. Moreover, when the location of a disaster is a planar area and the area is indicated by coordinates, for example, the outer edge of the area may be indicated by a plurality of coordinates. Further, when the location of the disaster is a linear location and the linear location is indicated by coordinates, the linear location may be indicated by a plurality of coordinates, for example. Further, when the location of the disaster is a point-like place and the point-like place is indicated by coordinates, for example, the point-like place may be indicated by one coordinate. In addition, when the location of the disaster is indicated by an address, the area on the surface can be indicated by, for example, XX city △△ machi 1-chome, etc. Thus, a linear place can be shown, and a dot-like place can be shown by 1st Street, 1st Street, etc.

  Further, the receiving unit 11 may receive the disaster occurrence information corresponding to the disaster location information together with the disaster location information. For example, the time of occurrence may indicate only the time (for example, 10:15), or may indicate the date and time (for example, 10:15 on October 20, etc.) The date and time (for example, 10:15 on October 20, 2011) may be indicated, or other information including the time may be used. The occurrence time is, for example, the occurrence time of a natural disaster. Specifically, the occurrence time of a flood, the arrival time of a fire, the time of entering a storm zone, the occurrence time of a tornado, the occurrence time of an earthquake, Arrival time, storm surge occurrence time, landslide occurrence time, landslide occurrence time, steep slope collapse occurrence time, volcanic eruption time, debris flow occurrence time, thunder occurrence time, heavy snowfall and avalanche occurrence time, and other abnormalities The occurrence time of a natural phenomenon or the like, and usually the time is an expected time.

  The disaster location information and the occurrence time may be created by, for example, the Japan Meteorological Agency or other organizations that manage natural disasters. The receiving unit 11 may or may not include a wired or wireless receiving device (for example, a modem or a network card) for receiving. The receiving unit 11 may receive a broadcast. The receiving unit 11 may be realized by hardware, or may be realized by software such as a driver that drives the receiving device.

The disaster location information storage unit 12 stores disaster location information indicating the location of the disaster. The disaster location information storage unit 12 may store the disaster location information and the disaster occurrence time corresponding to the disaster location information. The disaster location information stored in the disaster location information storage unit 12 is accumulated by the reception unit 11. The storage in the disaster location information storage unit 12 may be temporary storage in a RAM or the like, or may be long-term storage. The disaster location information storage unit 12 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).
Here, the disaster location information and the occurrence time may be, for example, the information itself, or a pointer or an address indicating a position where the disaster location information is stored. The same applies to information stored in other storage units.

  The evacuation site information storage unit 13 stores evacuation site information indicating an evacuation site. In the evacuation site information storage unit 13, evacuation site information indicating one evacuation site may be stored, or evacuation site information indicating two or more evacuation sites may be stored. In the present embodiment, the latter case will be mainly described. The evacuation site information may indicate the evacuation site with coordinates, may indicate with an address, or may indicate other location with information that can be specified. Further, when the evacuation site information is information indicating two or more evacuation sites, the priority order may be set for the two or more evacuation sites or may not be so.

  The process in which evacuation place information is memorize | stored in the evacuation place information storage part 13 is not ask | required. For example, the evacuation site information may be stored in the evacuation site information storage unit 13 via a recording medium, and the evacuation site information transmitted via a communication line or the like is stored in the evacuation site information storage unit 13. Alternatively, the evacuation site information input via the input device may be stored in the evacuation site information storage unit 13. The storage in the evacuation site information storage unit 13 may be a temporary storage in a RAM or the like, or may be a long-term storage. The evacuation site information storage unit 13 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  The map information storage unit 14 stores map information that is information about the map. The map information may be map image information, for example. This image information may be raster data (bitmap data) or vector data, for example. When the image information is raster data, the map information may include image information corresponding to a plurality of scales. For example, map information may include large-scale image information, medium-scale image information, and small-scale image information for the same region. Moreover, map information shows the map divided | segmented into the tile shape, The map of various area | regions can be displayed now by combining suitably. Here, the “map” may be a topographic map, a topographic map, a geological map, a land use map, a house map, a route map, a road map, a guide map, a public map or a cadastral map provided in the Legal Affairs Bureau. When the evacuation route output device 1 or the terminal device of an evacuee who communicates with the evacuation route output device 1 is a car navigation device, the map information may be a road map. When the evacuation route output device 1 or the like is used on foot or by bicycle, the map information may be a road map for pedestrians and bicycles. The map information can be used for route search. That is, map information shows the position of a road, for example. In addition, the map information may be information that allows the user to know road attributes (for example, speed limit, main road, side road, etc.). For example, this map information may be in the KIWI format used in car navigation. In addition, the “map” may be an aerial photograph or satellite photograph in which the topography, roads, etc. can be grasped, or those in which symbols or characters are entered. In the map information, it is assumed that the correspondence between each point on the map and the coordinates (position) can be known. The coordinates may be coordinates with an origin at a certain reference point (the coordinates may be distances, for example), may be latitude / longitude, or may be information that can identify other positions. . The coordinates themselves may be included in the map information. In the present embodiment, a case where the coordinates are latitude / longitude will be described. In addition, the map information may include character information related to place names and topography such as mountains and rivers. In the map information, it may be set which is a specific direction such as north. The map information may be information related to a two-dimensional map, or may be information related to a map having three-dimensional coordinate information. The map information is known as an online map, an electronic map, etc., and detailed description thereof is omitted.

  The process in which map information is memorize | stored in the map information storage part 14 is not ask | required. For example, map information may be stored in the map information storage unit 14 via a recording medium, and map information transmitted via a communication line or the like is stored in the map information storage unit 14. Alternatively, the map information input via the input device may be stored in the map information storage unit 14. The storage in the map information storage unit 14 may be temporary storage in a RAM or the like, or may be long-term storage. The map information stored in the map information storage unit 14 may be, for example, temporarily stored map information received from a server or the like, or may not be so. For example, the map information storage unit 14 may download map information in the vicinity of the current position or map information for displaying route information described later from a server (not shown) and temporarily store the map information. . In that case, every time the current position is changed, new map information may be downloaded and stored in the map information storage unit 14. The map information storage unit 14 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  The current position acquisition unit 15 acquires the current position. This current position is the current position of the evacuees, and indicates the position (starting place) of the base point when the route is generated. The current position acquired by the current position acquisition unit 15 may be the current position of the evacuation route output device 1 (when the refugee is operating the evacuation route output device 1), or the evacuee's terminal device It may be the current position (when the terminal device and the evacuation route output device 1 are different). When the current position is the current position of the evacuation route output device 1, the current position acquisition unit 15 may acquire the current position using, for example, GPS (Global Positioning System), and may be an autonomous gyro. The current position may be obtained by using a navigation device, and both may be obtained by making up for each other's drawbacks by using both, or by using the base station nearest to the mobile phone The current position may be acquired. When the current position is the current position of the evacuee's terminal device, the current position acquisition unit 15 may receive the current position from the terminal device. In this case, the current position acquisition unit 15 may receive the identifier of the terminal device and the current position of the terminal device so that the terminal device of the refugee corresponding to the received current position can be specified. Good. The identifier of the terminal device may be, for example, an address of the terminal device, a serial number, or information that can identify other terminal devices. When the current position is the current position of the evacuee's terminal device, the current position may be acquired by using the GPS, an autonomous navigation device, or the like in the terminal device. The current position acquired by the current position acquisition unit 15 may be coordinates indicating latitude and longitude, for example, or other coordinates. In addition, when the current position is the current position of the evacuee terminal device, the current position acquisition unit 15 may receive the current position including the direction (orientation) of the terminal device, or otherwise Also good. When the current position is the current position of the evacuee's terminal device, the current position acquisition unit 15 transmits a transmission request for the current position to the terminal device, and the terminal device in response to the transmission of the transmission request. The current position may be received from. Further, when the current position is the current position of the evacuation route output device 1, the current position acquisition unit 15 may acquire the current position including the direction (orientation) of the evacuation route output device 1, or so It does not have to be. The direction may be indicated by, for example, an azimuth angle measured clockwise with north as 0 degree, or may be indicated by information indicating other directions. When the evacuee's terminal device or the evacuation route output device 1 is a car navigation device, the direction (orientation) may be, for example, the traveling direction (orientation in front of the car). When the evacuee's terminal device or the evacuation route output device 1 is a mobile phone, PDA, PND or the like, the direction (orientation) may be, for example, the direction of the device. When the current position is the current position of the evacuation route output device 1, the current position acquisition unit 15 may include an electronic compass or a geomagnetic sensor in order to acquire the direction. Further, when the current position is the current position of the evacuee's terminal device, the direction of the apparatus may be acquired using an electronic compass or a geomagnetic sensor in the evacuee's terminal device. Further, the current position and the like acquired by the current position acquisition unit 15 may be stored in a recording medium (not shown).

  The evacuation route information generation unit 16 generates evacuation route information that is information related to the evacuation route. The evacuation route is a route from the current position acquired by the current position acquisition unit 15 to the position of the evacuation site information. The evacuation route is a route that does not pass through the place indicated by the disaster location information. With this evacuation route information, the route from the current position of the refugee to the evacuation site can be known. The evacuation route information may include a route image that is an image showing a route between two positions. The route image may be an image of a line connecting a number of points constituting the route from the start point to the end point. Further, the evacuation route information may be text information (for example, “go north for 250 m, cross the pedestrian crossing, go west for 500 m, and go north for 200 m”, etc.). The evacuation site that is the destination of the evacuation route is, for example, when the evacuation site information indicates one evacuation site, and when the evacuation site information indicates two or more evacuation sites, One of the two or more evacuation sites. It is assumed that the evacuation site as the destination does not exist at least in the disaster location indicated by the disaster location information. That is, the evacuation route information generation unit 16 generates evacuation route information related to the evacuation route up to the position indicated by the evacuation site information that does not exist at the location indicated by the disaster location information. Further, when the evacuation site information indicates two or more evacuation sites and priority is set for the evacuation sites, the evacuation site with the highest priority may be the destination. When the evacuation site information indicates two or more evacuation sites, the evacuation site closest to the current position may be the destination. The closest to the current position may be the closest in a straight line distance, or may be the closest in the generated route (the shortest route distance). The evacuation route information generation unit 16 may generate a plurality of routes from the current position to a plurality of evacuation sites, and select an evacuation route from the routes. At the time of the selection, the evacuation route information generation unit 16 selects a route that does not pass through the disaster area. Further, at the time of selection, the evacuation route information generation unit 16 may select the route having the shortest distance, select the route having the earliest arrival time, or select the route based on other criteria. May be. Note that the evacuation route does not pass through the disaster area may mean that the evacuation route does not pass through the disaster area at all (does not pass in all time), or the evacuation route passes through the disaster area. You may not pass after the generation | occurrence | production time corresponding to a place. In the former case, for example, the evacuation route information generation unit 16 generates an evacuation route that does not pass through the stricken place by setting a route search by setting all the roads that intersect the outline of the stricken place to be impassable. be able to. In the latter case, that is, when the occurrence time is not taken into consideration and the disaster area is not passed, the evacuation route information generation unit 16 also generates a scheduled passage time in the route and evacuates from the current position. Evacuation route information relating to an evacuation route that is a route to the location of the location information and does not pass through the location indicated by the disaster location information after the occurrence time corresponding to the disaster location information may be generated. In this embodiment, this case will be mainly described. As a result, the evacuation route information generation unit 16 may generate the evacuation route information as long as it generates the evacuation route information as described above. In order to generate an evacuation route that does not pass through the stricken area, for example, the evacuation route information generation unit 16 generates a route to a plurality of evacuation sites by a normal route search, and among the generated routes, the stricken area An evacuation route that does not pass through the evacuation route may be selected, and a route to a evacuation site is generated by a normal route search. You can create a evacuation route to the evacuation site again by setting it as a prohibited place in the route search, or from the beginning, set the affected area as a prohibited place in the route search to the evacuation site. An evacuation route may be generated. Note that a route search method that does not pass through a certain place is already known and will not be described in detail. The evacuation route information generation unit 16 may generate evacuation route information using the map information stored in the map information storage unit 14 when generating the evacuation route information.

  Here, a method for determining whether a certain route passes through the affected area in consideration of the occurrence time will be briefly described. When there is an overlap between a certain route and the disaster location, the evacuation route information generation unit 16 specifies a position where the route exits from the disaster location (hereinafter also referred to as “exit position”). The identification can be performed, for example, by calculating the position of the intersection far from the departure point among the intersections between the outline of the disaster location and the route. Then, the evacuation route information generation unit 16 calculates a scheduled arrival time for the exit position on the route. The estimated arrival time may be calculated using a distance on the route from the current position to the exit position. For example, the travel time may be calculated by dividing the distance by the travel speed, and the estimated arrival time may be calculated by adding the travel time to the current time. In that case, you may make it use the moving speed according to a moving means (for example, a motor vehicle, a bicycle, walking, etc.). Also, if a part of the route includes parts with different travel speeds (for example, if the part of the route is a highway or if there is a traffic jam on a part of the route) The travel time may be calculated by calculating and adding the required time within the range. Note that a method for calculating the estimated time of arrival at a certain point using a predetermined route is already known, and a detailed description thereof will be omitted. The evacuation route information generation unit 16 determines whether the calculated estimated arrival time to the exit position is before the occurrence time, and if the estimated arrival time is earlier than the occurrence time, the evacuation route information generation unit 16 must pass through the disaster area. On the other hand, if the estimated arrival time is later than the occurrence time, it may be determined that the vehicle passes through the disaster location. Since the exit position is in the middle of the route (between the departure point and the destination), it can be said that the scheduled arrival time is the scheduled passage time on the route.

  A method for generating a route from the start point to the end point by the evacuation route information generation unit 16 will be briefly described. The evacuation route information generation unit 16 acquires coordinates (for example, latitude and longitude) respectively corresponding to the two positions of the start point and the end point, and performs a route search between the acquired two coordinates. Specifically, the evacuation route information generation unit 16 normally uses the map information to determine a route so that the score of the route from the start point to the end point is minimized. In the route search, for example, Dijkstra method may be used, A * algorithm may be used, Bellman-Ford method may be used, Warsal-Floyd method may be used, and other algorithms may be used. Also good.

  The Dijkstra method is a method in which the shortest route is checked while calculating distances in the order of short distances radially from the starting point. The Dijkstra method is an algorithm in which the route becomes the shortest route when the destination is reached. Furthermore, in the Dijkstra method, the required memory amount and processing time increase in proportion to the number of links and nodes. Note that a node is a point on the map. The link is a line connecting the nodes (reference: Internet <URL: http://www.devnotes.net/acmicpc/dijkstra/>).

  The A * algorithm is an algorithm that efficiently solves the shortest path problem when the estimated value h * (n) of the distance from each vertex n to the goal is known. The A * algorithm is an idea in which a predicted distance is added to the Dijkstra method, and the arrival step to the destination is shorter than the Dijkstra method. Further, since the predicted distance is included in the A * algorithm, the route may not be the shortest route when the destination is reached. In addition, in the A * algorithm, priority is given to reaching the destination, and the memory capacity and processing time can be reduced (reference: Internet <URL: http: //ja.wikipedia.org/wiki/A*%E3%) 82% A2% E3% 83% AB% E3% 82% B4% E3% 83% AA% E3% 82% BA% E3% 83% A0>). Note that information necessary for the evacuation route information generation unit 16 to perform route search is stored in the map information storage unit 14.

  The generation of this route and the like is already known and will not be described in detail. For example, in the online map, when the latitude / longitude of the start point and the latitude / longitude of the end point are input, the route, distance, and travel time from the start point to the end point are displayed (for example, “http: /// map.google.co.jp/maps "). Further, the evacuation route information generation unit 16 may pass the start point and end point of the route to another server or the like and receive the route information from the server or the like. Even in that case, the evacuation route information generation unit 16 may be considered to have generated the route information.

  The output unit 17 outputs the map information and the evacuation route information generated by the evacuation route information generation unit 16. The output unit 17 may output these pieces of information simultaneously or separately. In the former case, the output unit 17 may output an image displaying the evacuation route on the map. When the evacuation route output device 1 is a device that is directly used by an evacuee, the output unit 17 may display such information. When the evacuation route output device 1 is a server that provides evacuation route information while communicating with a terminal device used by an refugee, the output unit 17 transmits the information to the terminal device. May be. Moreover, when outputting map information, the output part 17 may read only the map information used as output object from the map information storage part 14, and may output it. The output map image may include, for example, a place name, a direction figure, a scale display, and the like. When the current position acquired by the current position acquisition unit 15 changes, the map information to be output may be changed according to the change. For example, the output unit 17 may read and output a new map according to the movement of the evacuees. Moreover, the output part 17 may output the map containing the mark which shows the position (present position) of an evacuee, for example. Further, when the evacuation route information includes a route image, the output unit 17 may output a map including the route image. The display of the route on the map may be a display of a route in the vicinity of the current position, or may be a display of the entire route. The output unit 17 may perform navigation processing using the map information, the evacuation route information, and the current position of the refugee. The navigation process is a process for guiding a route using the evacuation route information so that the user can reach the destination from the departure point. This process is already known as a process of a known navigation device, and detailed description thereof is omitted. The output unit 17 may output other information. For example, the output unit 17 may output the area indicated by the disaster location information stored in the disaster location information storage unit 12 and the occurrence time corresponding to the disaster location information. By outputting them, the evacuees can know the location of the disaster and the time when the location becomes dangerous, and can also be used as a reference when evacuating.

  Here, as described above, this output may be displayed on a display device (for example, a CRT or a liquid crystal display), or may be transmitted to a predetermined device via a communication line. Note that the output unit 17 may or may not include a device that performs output (for example, a display device or a transmission device). The output unit 17 may be realized by hardware, or may be realized by software such as a driver that drives these devices.

  Of the disaster location information storage unit 12, the evacuation site information storage unit 13, and the map information storage unit 14, any two or more storage units may be realized by the same recording medium or separately. It may be realized by the recording medium. In the former case, for example, the area storing the disaster location information is the disaster location information storage unit 12, and the area storing the evacuation location information is the evacuation location information storage unit 13.

Next, operation | movement of the evacuation route output apparatus 1 is demonstrated using the flowchart of FIG.
(Step S101) The receiving unit 11 determines whether the disaster location information has been received. If received, the process proceeds to step S102. If not, the process of step S101 is repeated until received. The receiving unit 11 is assumed to receive the disaster location information usually at the time of occurrence of a disaster or when the occurrence is expected.

(Step S <b> 102) The receiving unit 11 accumulates the received disaster location information in the disaster location information storage unit 12.
The receiving unit 11 may also receive the occurrence time together with the disaster location information, and store the disaster location information and the occurrence time in the disaster location information storage unit 12 in association with each other.

  (Step S103) The evacuation route information generation unit 16 includes the evacuation site information stored in the evacuation site information storage unit 12 in step S102 among the evacuation sites indicated by the evacuation site information stored in the evacuation site information storage unit 13. Identify an evacuation site that does not exist at the indicated disaster location. Note that this specification may be, for example, storing information indicating the specified evacuation place in a recording medium (not shown), or setting a flag or the like in association with the specified evacuation place. Good.

  (Step S104) The evacuation route information generation unit 16 or the like generates evacuation route information related to an evacuation route that is a route that does not pass through the disaster location among the routes from the current position at that time to the evacuation location specified in Step S103. To do. The generated evacuation route information may be stored on a recording medium (not shown). Details of this processing will be described later with reference to the flowchart of FIG.

  (Step S105) The output unit 17 outputs the evacuation route information generated in step S104 and the map information. Then, the process returns to step S101. As described above, the output unit 17 may or may not perform the navigation process until the evacuee reaches the evacuation site as the destination.

  In the flowchart of FIG. 2, the process is terminated by powering off or a process termination interrupt. In addition, in step S103 of the flowchart of FIG. 2, if an evacuation site that is not a disaster location cannot be identified, there is no appropriate evacuation site, so the process of generating the evacuation route information is terminated and an error occurs. A message may be output.

FIG. 3 is a flowchart showing details of the evacuation route generation process (step S104) in the flowchart of FIG.
(Step S201) The current position acquisition unit 15 acquires the current position. Note that the acquired current position may be stored in a recording medium (not shown).

  (Step S202) The evacuation route information generation unit 16 sets the counter i to 1.

  (Step S203) The evacuation route information generation unit 16 generates a route having the current position acquired in Step S201 as a departure place and the i-th evacuation place as a destination among the evacuation places specified in Step S103. Information indicating the route may be stored in a recording medium (not shown).

  (Step S204) The evacuation route information generation unit 16 determines whether or not the route generated in Step S203 passes through the affected area. And when it passes, it progresses to step S205, and when that is not right, it progresses to step S206. This determination may or may not be performed using the time of occurrence.

  (Step S <b> 205) The evacuation route information generation unit 16 sets the disaster-affected location as a prohibited passage location in route search, and again generates a route to the i-th evacuation location. The route generated in this way is naturally a route that does not pass through the affected area. Note that when the route is generated in step S205, the route generated in step S203 is not used in the process of step S208 described later.

  (Step S206) The evacuation route information generation unit 16 increments the counter i by 1.

  (Step S207) The evacuation route information generation unit 16 determines whether or not the i-th evacuation site exists at the evacuation site specified in Step S103. And when it exists, it returns to step S203, and when that is not right, it progresses to step S208.

  (Step S208) The evacuation route information generation unit 16 selects an evacuation route from the routes generated in Step S203 and Step S205. The selection of the evacuation route may be, for example, the selection of the route with the shortest distance, and when the estimated arrival time at the destination is calculated, the selection of the route with the earliest arrival time is selected. Alternatively, when priority is set for the evacuation site that is the destination, it may be selected with the highest priority, or may be selected according to other criteria. Information relating to the evacuation route selected in this way becomes evacuation route information.

  In the flowchart of FIG. 3, a route is generated without considering the disaster location information (step S203). If the route passes through the disaster location, a route that does not pass through the disaster location is generated (step S205). The above method is adopted, but it is not necessary to be as described above. For example, a route that does not pass through the affected area may be generated by performing a route search that does not pass through the affected area from the beginning.

  Moreover, although the case where the evacuation route is selected after the route is generated has been described in the flowchart of FIG. 3, this need not be the case. For example, when priority is set for an evacuation place, routes are generated in descending order of priority, and when the routes can be generated, processing for generating an evacuation route using the route as an evacuation route May be terminated.

  Next, operation | movement of the evacuation route output apparatus 1 by this Embodiment is demonstrated using a specific example. In this specific example, it is assumed that the evacuation route output device 1 is a tablet computer directly used by the refugee U001. Further, it is assumed that the evacuation site information storage unit 13 in the evacuation route output device 1 stores the evacuation site information shown in FIG. 4A. The evacuation site information of FIG. 4A includes longitude / latitude (X201, Y201) corresponding to the three evacuation sites.

  First, the earthquake occurred at 14:40 on the YY month ZZ day of XX, and immediately after that, the disaster location information (X101, Y101), (X102, Y102), which is the expected location of the tsunami, and the prediction of the tsunami It is assumed that the occurrence time “XX year YY month ZZ day 15:00” as the arrival time is transmitted to each evacuation route output device 1. Then, the receiving unit 11 in the evacuation route output device 1 of the evacuee U001 receives the disaster location information and the like (step S101) and accumulates it in the disaster location information storage unit 12 (step S102). As a result, the disaster location information shown in FIG. 4B and the occurrence time are stored in the disaster location information storage unit 12. The disaster location information is a set of latitude and longitude indicating the outline of the area of the disaster location.

  When the evacuation route information generation unit 16 detects that the new disaster area information or the like has been stored in the disaster area information storage unit 12, the evacuation route information generation unit 16, among the three evacuation areas stored in the evacuation site information storage unit 13, An evacuation site that does not exist in the area indicated by the location information is specified (step S103). Specifically, it is assumed that the area indicated by the disaster location information shown in FIG. 4B is between the coastline 55 and the tsunami arrival position 56 in the map of FIG. Further, in the map of FIG. 5, the positions indicated by the longitude and latitude (X201, Y201), (X202, Y202), (X203, Y203) of the evacuation place information are respectively the evacuation places 51 to 51 in the map of FIG. It is assumed that the position is 53. Then, the evacuation route information generation unit 16 determines whether each longitude / latitude is included in the area of the disaster location information, and the longitude / latitude (X201, Y201), (X203, Y203) is not the disaster location. The evacuation site is specified, and the two longitudes / latitudes are stored in a recording medium (not shown) in the evacuation route information generation unit 16.

  Thereafter, the evacuation route information generation unit 16 generates a safe evacuation route from the current position of the refugee U001 to the evacuation site (step S104). Specifically, the evacuation route information generation unit 16 first instructs the current position acquisition unit 15 to acquire the current position. Accordingly, it is assumed that the current position acquisition unit 15 acquires the longitude / latitude (X301, Y301) of the current position 50 in the map of FIG. 5 and passes it to the evacuation route information generation unit 16 (step S201). Then, the evacuation route information generation unit 16 accumulates the longitude / latitude (X301, Y301) of the current position 50 in a recording medium (not shown), and the specified first evacuation place longitude / latitude (from the current position) A route to X201, Y201) is generated (steps S202, S203). Assume that the route is route R101 shown in FIG. 6A. Further, the evacuation route information generation unit 16 determines whether or not there is an overlap between the route R101 and the area indicated by the disaster location information. In this case, since there is an overlap, the exit position P101 in the route R101 is specified, The estimated arrival time at the exit position P101 is calculated. It is assumed that the estimated arrival time at the exit position P101 is 15:05. As a result, it is determined that the route R101 passes through the area indicated by the disaster location information after the occurrence time 15:00 (step S204), and the evacuation route information generation unit 16 detects the coastline 55 and the tsunami arrival position 56. That is, the route R102 shown in FIG. 6B is generated (step S205). Then, the route R102 is stored in a recording medium (not shown) as a route to the evacuation site 51.

  Next, the evacuation route information generation unit 16 generates a route from the longitude / latitude (X301, Y301) of the current position 50 to the longitude / latitude (X203, Y203) of the identified second evacuation site 53 (step 203). S206, S207, 203). Assume that the route is route R103 shown in FIG. 6C. Further, the evacuation route information generation unit 16 determines whether there is an overlap between the route R103 and the area indicated by the disaster location information. In this case, since there is an overlap, the exit position P103 in the route R103 is specified, The estimated arrival time at the exit position P103 is calculated. It is assumed that the estimated arrival time at the exit position P103 is 14:55. As a result, it is determined that the route R103 does not pass through the area indicated by the disaster location information after the occurrence time 15:00 (step S204), and the evacuation route information generation unit 16 uses the route R103 as the route to the evacuation location 53. As shown in FIG.

  Thereafter, the evacuation route information generation unit 16 travels from the current position 50 to the evacuation site 51 via the route R102 and from the current location 50 to the evacuation site 53 via the route R103. And calculate. In this case, it is assumed that the latter is shorter. Then, the evacuation route information generation unit 16 selects the route R103 as the evacuation route and passes the evacuation route information regarding the evacuation route R103 to the output unit 17 (step S208). Then, as shown in FIG. 7, the output unit 17 indicates that the current position 50, the evacuation route R103, the tsunami arrival position 56, and the broken line are the tsunami arrival positions, and the arrival time is 15:00. A map including the text indicating the presence is displayed (step S105). As a result, the refugee U001 can know the evacuation route R103 to the evacuation place 53, and can evacuate safely by evacuating accordingly. In addition, the evacuee U001 can know the tsunami arrival position and the estimated arrival time, and can evacuate so that he can escape from the area indicated by the disaster location information. As described above, navigation to the evacuation site 53 may be appropriately performed after the display of the evacuation route R103.

  As described above, according to the evacuation route output device 1 according to the present embodiment, a safe evacuation route to an evacuation site can be presented to an evacuee. As a result, the evacuees can evacuate safely by the evacuation route. In addition, even if the evacuation route itself passes through the area indicated by the disaster location information, if the passage through the area is before the occurrence time, the route passing through the area indicated by the disaster location information is determined as the evacuation route. By doing so, it becomes possible to generate an evacuation route with a higher degree of freedom. As a result, a more appropriate evacuation route can be presented. In addition, when two or more evacuation sites are indicated by the evacuation site information, an evacuation route can be guided to a safe evacuation site by generating an evacuation route to an evacuation site that does not exist in the area indicated by the disaster site information. become able to.

  In the present embodiment, the description has been given of the case where one disaster location information and the corresponding occurrence time are stored in the disaster location information storage unit 12, but this need not be the case. For example, in the case of a flood or tsunami, the flood area or tsunami reach may increase with time. Therefore, the disaster location information storage unit 12 may store a plurality of disaster location information and a plurality of occurrence times corresponding to them. For example, if a tsunami arrives at 15:00 in area A1, a tsunami arrives at 15:05 in area A2, and a tsunami arrives at 15:10 in area A3, the disaster location information storage unit 12, a plurality of disaster location information and a plurality of occurrence times respectively corresponding to each disaster location information may be stored. In that case, the evacuation route information generation unit 16 may generate evacuation route information related to the evacuation route so as not to pass through the disaster location indicated by each disaster location information after the occurrence time corresponding to the disaster location. . Specifically, the evacuation route information generation unit 16 specifies an exit position corresponding to each disaster location for a certain route, and calculates a scheduled arrival time at the exit position. For all exit positions, if the estimated arrival time at the exit position is earlier than the occurrence time corresponding to the disaster location corresponding to the exit location, even if it is determined that the route does not pass through the disaster location. Good.

  Moreover, although this Embodiment demonstrated the case where an evacuation route was produced | generated using the disaster location information which the receiving part 11 received, it may not be so. Disaster area information may be generated in the evacuation route output device 1. As described above, an example in the case where the disaster location information is generated in the evacuation route output device 1 will be briefly described. As shown in FIG. 8, the evacuation route output device 1 that generates the stricken area information includes a stricken area information storage unit 12, an evacuation site information storage unit 13, a map information storage unit 14, and a current position acquisition unit 15. The evacuation route information generation unit 16, the output unit 17, the reception unit 21, and the disaster location information generation unit 22 may be provided. That is, the evacuation route output device 1 may include a reception unit 21 and a disaster location information generation unit 22 instead of the reception unit 11. In this case, the map information stored in the map information storage unit 14 is information relating to a map having three-dimensional coordinate information. Here, having three-dimensional coordinate information means that the coordinate value of the plane at the desired position and the coordinate value in the height direction can be known in the map image. The coordinate value of the plane may be, for example, latitude / longitude, or a coordinate value based on a certain position. Moreover, the coordinate value of a height direction is an altitude, for example. The altitude is usually based on the sea level, but may be based on other heights. Moreover, the method in which map information has three-dimensional coordinate information is not ask | required. For example, it may be data of a digital elevation model (DEM: Digital Elevation Model) having coordinate values in the height direction for each equally spaced grid point, or a digital terrain model (DTM: Digital Terrain Model). It may be TIN (Triangulated Irregular Network) data in which the sampling points are selected so as to reflect the features of the terrain well. In any case, the elevation values of points other than the sample points are calculated by interpolating the sample points. For example, in the case of TIN data, when calculating the altitude value at a certain position, the altitude value is calculated by interpolating the altitude values of the sample points constituting the smallest triangle including the position. It should be noted that a method for calculating the elevation value of an arbitrary point by interpolating the elevation value of the sample point in this manner is already known, and a detailed description thereof will be omitted.

  The receiving unit 21 receives the tsunami arrival altitude. The altitude reached by the tsunami is the height at which the tsunami reaches on the ground, and is usually higher than the height of the tsunami itself. Therefore, the reaching height of this tsunami may be calculated by multiplying the height of the tsunami appropriately by a value greater than 1, or adding a predetermined value, for example. Moreover, the reception part 21 may receive the occurrence time which is the arrival time with the arrival height of the tsunami. The occurrence time may be accumulated in the disaster location information storage unit 12 by the reception unit 21, or may be accumulated in the disaster location information storage unit 12 by the disaster location information generation unit 22, for example. In addition, the reception unit 21 may receive, for example, a tsunami arrival altitude input from an input device (for example, a keyboard, a mouse, a touch panel, etc.), and an arrival of a tsunami transmitted via a wired or wireless communication line The altitude may be received, or the tsunami arrival altitude read from a predetermined recording medium (for example, an optical disk, a magnetic disk, or a semiconductor memory) may be received. The reception unit 21 may or may not include a device (for example, a modem or a network card) for reception. The receiving unit 21 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

  The disaster location information generation unit 22 uses the information about the map having the three-dimensional coordinate information stored in the map information storage unit 14 to obtain an elevation value that is a coordinate value in the height direction (vertical direction). The disaster location information indicating an area that is equal to or lower than the arrival altitude received by 21 is generated. Then, the disaster location information generation unit 22 accumulates the generated disaster location information in the disaster location information storage unit 12. In the generation, the disaster location information generation unit 22 scans the elevation value monotonically from the coastline (normally the elevation value is 0) toward the land side, and the acceptance unit 21 accepts it. A position having the same altitude value as the reached altitude may be specified, and a contour line of the reaching altitude that is a connection of positions having the same altitude value may be specified. And the disaster location information generation part 22 may produce | generate the disaster location information which shows the area enclosed by the contour line and the coastline of the reach | attainment altitude. When identifying the contour lines, the disaster location information generation unit 22 may use the altitude values of points other than the sample points calculated by interpolating the sample points.

  The operation when the configuration of the evacuation route output device 1 is as shown in FIG. 8 is performed except that steps S301 to S303 in the flowchart of FIG. 9 are executed instead of steps S101 and S102 in the flowchart of FIG. This is the same as described above. Here, steps S301 to S303 will be briefly described.

  (Step S301) The accepting unit 21 determines whether or not a reach altitude has been accepted. If accepted, the process proceeds to step S302. If not, the process of step S301 is repeated until accepted. The reception unit 21 normally receives a tsunami arrival altitude corresponding to the earthquake immediately after the occurrence of the earthquake.

  (Step S302) The disaster location information generation unit 22 generates disaster location information.

  (Step S303) The disaster location information generation unit 22 accumulates the disaster location information in the disaster location information storage unit 12. When the reception unit 21 also receives the occurrence time, the occurrence time and the disaster location information are accumulated in the disaster location information storage unit 12.

  Here, a specific example of the operation in which the disaster location information generation unit 22 generates the disaster location information will be briefly described. Assume that the reception unit 21 receives the arrival altitude “8 (m)” and the occurrence time “XX year YY month ZZ day 15:00”, which is the estimated arrival time, and passes them to the disaster location information generation unit 22 (step S301). ). Then, the disaster location information generation part 22 confirmed the altitude value sequentially from the coastline 55 toward the land as shown by the arrow shown in FIG. 10 using the map information, and became 8 (m). The point P10 is specified. And the arrival position 56 of a tsunami can be specified by following the position of the same altitude value 8 (m) sequentially from the point P10. Thereafter, the disaster location information generation unit 22 generates disaster location information indicating a region surrounded by the tsunami arrival position 56 and the coastline 55 (step S302), and the disaster location information and the occurrence received from the reception unit 21. The time is accumulated in the disaster location information storage unit 12 (step S303). In the case of a tsunami, since the disaster area covers a wide area along the coastline 55, the disaster area information generation unit 22 may generate disaster area information indicating a necessary area of the coastline 55. For example, the disaster location information generation unit 22 may generate the disaster location information only for the 10 km range of the coastline 55 centered on the current position.

  8 shows a case where the evacuation route output device 1 includes a reception unit 21 and a disaster location information generation unit 22 instead of the reception unit 11, the evacuation route output device 1 includes a reception unit. 11, a reception unit 21 and a disaster location information generation unit 22 may be provided. For example, when the reception unit 21 receives the tsunami arrival altitude, the disaster location information generation unit 22 generates the disaster location information accordingly, and generates the evacuation route using the generated disaster location information. When the receiving unit 11 receives the disaster location information, an evacuation route may be generated using the disaster location information.

  Moreover, although the case where the disaster location information was generated regarding the tsunami was described, the disaster location information may be generated for other disasters. For example, the evacuation route output device 1 may generate disaster location information indicating a flooded area regarding flood. In that case, the reception unit 21 may receive the flood inundation height instead of the tsunami arrival height. The flood inundation height is the height (altitude) at which flooding will occur. Moreover, the reception part 21 may receive the generation | occurrence | production time which is the time when the inundation occurs with the flooding altitude of flood. Further, the disaster location information generation unit 22 uses the information about the map having the three-dimensional coordinate information stored in the map information storage unit 14 to obtain an elevation value that is a coordinate value in the height direction (vertical direction). The disaster location information indicating the area below the flooding height received by the reception unit 21 is generated. Then, the disaster location information generation unit 22 accumulates the generated disaster location information in the disaster location information storage unit 12. In the generation, the disaster location information generation unit 22 scans the elevation value monotonically from the coastline (normally the elevation value is 0) toward the land side, and the acceptance unit 21 accepts it. A position having the same elevation value as the inundation height may be specified, and a contour line of the inundation height that is a connection of positions having the same elevation value may be specified. And the disaster location information generation part 22 may produce | generate the disaster location information which shows the area enclosed by the contour line and coastline of the inundation height. Note that the process for generating the disaster location information is the same as in the case of the tsunami, and the detailed description thereof is omitted.

  Moreover, in this Embodiment, you may set disaster location information according to other than the height of a tsunami, and the level of flooding. This will be described below. As shown in FIG. 11, the evacuation route output device 1 that sets the stricken area information according to other than the height of the tsunami and the degree of flooding, the stricken area information storage unit 12, the evacuation site information storage unit 13, and the map information A storage unit 14, a current position acquisition unit 15, an evacuation route information generation unit 16, an output unit 17, a correspondence information storage unit 31, a natural phenomenon information reception unit 32, and a disaster location information setting unit 33 are provided. Also good. The configurations and operations other than the correspondence information storage unit 31, the natural phenomenon information reception unit 32, and the disaster location information setting unit 33 are the same as those described above, and the description thereof is omitted.

  The correspondence information storage unit 31 is information that associates condition information indicating conditions related to a natural phenomenon with disaster candidate location information indicating a location (damage candidate location) to be damaged when the conditions indicated by the condition information are met. Information is stored. As long as the correspondence information can associate the condition information and the disaster candidate location information as a result, the correspondence information may or may not include the condition information and the disaster candidate location information. In the latter case, for example, the correspondence information may correspond to the position where the condition information and the disaster candidate location information are stored. The correspondence information normally associates two or more condition information with two or more disaster candidate location information. The condition relating to the natural phenomenon may be a condition of the degree of the natural phenomenon. The degree of the natural phenomenon may be, for example, precipitation that is the degree of rain, seismic intensity that is the degree of earthquake, wind speed that is the degree of wind, or the amount of snowfall that is the degree of snow. In addition, the degree may be indicated quantitatively (for example, the precipitation amount per hour is 10 mm, etc.) or may be indicated qualitatively (for example, heavy rain indicating that the degree of rain is heavy) An alarm has been issued). Therefore, the condition may specify at least one of the upper limit and the lower limit regarding the quantity of precipitation, etc., may specify whether a heavy rain warning, flood warning, etc. are present, or Other conditions related to natural phenomena may be used. Further, the condition indicated by the condition information may be set for each region. In this embodiment, this case will be described. Like the disaster location information described above, the disaster candidate location information may indicate the location by coordinates, may be indicated by an address, or may be indicated by other information that can specify the location. It may be. Because this disaster candidate location information is information indicating the location that may become the disaster location information, for example, steep slope collapse danger area, sabo designated area, landslide prevention area, landslide disaster warning area, avalanche danger area, It may be information indicating a hillside collapse danger area, a steep slope damage assumption area, a landslide danger area, a collapsed sediment runoff danger area, an inundation assumption area, or other areas where disasters are likely to occur. Here, in the correspondence information, when the condition indicated by the condition information is satisfied, the correspondence information is set so that the possibility that the location indicated by the disaster candidate location information corresponding to the condition information will be damaged is increased. It is preferred that Further, the disaster candidate location information may be information indicating one region or information indicating two or more regions. Further, the disaster candidate location information may be information indicating disaster candidate locations every two or more hours, for example. The time usually indicates a period from the present to the future, for example, one hour later and two hours later. Specifically, the disaster candidate location information may indicate the current disaster candidate location, the disaster candidate location one hour later, and the disaster candidate location two hours later. In addition, the process in which correspondence information is memorize | stored in the correspondence information storage part 31 is not ask | required. For example, correspondence information may be stored in the correspondence information storage unit 31 via a recording medium, and correspondence information transmitted via a communication line or the like is stored in the correspondence information storage unit 31. Alternatively, the correspondence information input via the input device may be stored in the correspondence information storage unit 31. The storage in the correspondence information storage unit 31 may be temporary storage in a RAM or the like, or may be long-term storage. The correspondence information storage unit 31 can be realized by a predetermined recording medium (for example, a semiconductor memory, a magnetic disk, an optical disk, etc.).

  The natural phenomenon information receiving unit 32 receives natural phenomenon information that is information related to a natural phenomenon. The natural phenomenon information is information indicating the degree of the natural phenomenon. For example, the natural phenomenon information may be quantitative information such as precipitation, or may be qualitative information such as whether there is an alarm. The natural phenomenon information may be information on a natural phenomenon that has already occurred, or information on a natural phenomenon that is expected to occur. The natural phenomenon information may include information indicating the area. The natural phenomenon information receiving unit 32 may include the occurrence time of the natural phenomenon indicated by the natural phenomenon information. Strictly speaking, the occurrence time is a time at which the occurrence of the natural phenomenon is predicted. Note that the natural phenomenon information receiving unit 32 may receive the natural phenomenon information from, for example, the Meteorological Agency or other organizations that measure and manage natural phenomena, or from other places. The natural phenomenon information reception unit 32 may receive natural phenomenon information input from an input device (for example, a keyboard, a mouse, a touch panel, etc.), for example, and the natural phenomenon information transmitted via a wired or wireless communication line. The phenomenon information may be received, or the natural phenomenon information read from a predetermined recording medium (for example, an optical disk, a magnetic disk, a semiconductor memory, etc.) may be received. Note that the natural phenomenon information reception unit 32 may or may not include a device (for example, a modem or a network card) for reception. Further, the natural phenomenon information receiving unit 32 may be realized by hardware, or may be realized by software such as a driver that drives a predetermined device.

  The disaster location information setting unit 33 sets the disaster candidate location information corresponding to the condition information whose conditions are met by the natural phenomenon information received by the natural phenomenon information reception unit 32 in the disaster location information. That is, when the natural phenomenon information satisfies any one of the condition information associated with the disaster candidate location information in the correspondence information, the disaster candidate location information corresponding to the condition information satisfying the condition is represented by the disaster location information. Will be set to. The setting in the disaster location information may be, for example, reading from the correspondence information and accumulating in the disaster location information storage unit 12, or the disaster location information storage unit 12 and the correspondence information storage unit 31 may be If the difference between the disaster location information and the disaster candidate location information is realized by the same recording medium, the flag setting associated with the information is changed. May be. In addition, when the occurrence time is included in the natural phenomenon information received by the natural phenomenon information receiving unit 32, the disaster location information setting unit 33 sets the disaster location information with respect to the natural location information. The occurrence time included in the phenomenon information may be associated. Further, in the case where the disaster candidate location information corresponding to the condition information for which the condition is determined is information indicating the disaster candidate location every two or more times, the disaster location information setting unit 33 sets the time according to the time. Each occurrence time may be calculated, and each occurrence time may be set in association with disaster location information indicating a candidate disaster location corresponding to a time corresponding to each occurrence time.

  The operation when the configuration of the evacuation route output device 1 is as shown in FIG. 11 is performed except that steps S401 to S403 in the flowchart of FIG. 12 are executed instead of steps S101 and S102 in the flowchart of FIG. This is the same as described above. Here, steps S401 to S403 will be briefly described.

  (Step S401) The natural phenomenon information receiving unit 32 determines whether natural phenomenon information has been received. If accepted, the process proceeds to step S402. If not, the process of step S401 is repeated until accepted. For example, the natural phenomenon information receiving unit 32 may receive the natural phenomenon information at the time when the natural phenomenon occurs, may receive the natural phenomenon information regularly, or the degree of indication of the natural phenomenon information may change. If there is, natural phenomenon information may be accepted.

  (Step S402) The disaster location information setting unit 33 determines whether there is a condition satisfied by the natural phenomenon information received in Step S401. If the condition is present, the process proceeds to step S403. If not, the process returns to step S401. In addition, when two or more natural phenomenon information is received in step S401, it is preferable to determine whether or not a condition is satisfied for each natural phenomenon information. Further, when there is a possibility that certain natural phenomenon information satisfies two or more conditions, the disaster location information setting unit 33 determines whether or not the condition is satisfied for all of the received natural phenomenon information. Is preferably performed.

  (Step S403) The disaster location information setting unit 33 sets the disaster location information corresponding to the condition information determined to satisfy the condition in step S402 as the disaster location information. When it is determined that two or more condition information conditions are satisfied, the disaster candidate location information corresponding to each condition information is set in the disaster location information.

  Here, a specific example of the operation in which the disaster location information setting unit 33 sets the disaster location information will be briefly described. First, the case where the correspondence information is that shown in FIG. 13A will be described. In the correspondence information in FIG. 13A, the condition information includes the area and the amount of rainfall (precipitation) per hour. It is assumed that the area A101 and the like correspond to a predetermined area determined in advance. Further, the disaster candidate location information (X401, Y401), (X402, Y402), etc. are coordinates indicating the outer edge of the area. For example, in the area A101, if the rainfall per hour is 20 mm or more and less than 40 mm, areas where there is a possibility of flood damage, landslides, etc. are possible disaster location information (X401, Y401), (X402, Y402) ... Will be set as. In addition, for example, in the area A101, when the rainfall is further increased and the rainfall per hour becomes 40 mm or more, the area where a natural disaster such as flood damage may occur is possible disaster location information (X501, Y501) , (X502, Y502)... Therefore, normally, the area indicated by the disaster candidate location information (X501, Y501), (X502, Y502)... Includes the area indicated by the disaster candidate location information (X401, Y401), (X402, Y402). It will be. When the correspondence information shown in FIG. 13A is stored in the correspondence information storage unit 31, for example, when the natural phenomenon information “region: A101, rainfall: 30” is received by the natural phenomenon information reception unit 32 (step S401). The disaster location information setting unit 33 searches for condition information in which the area is A101 and the range of rainfall is 30. In this case, since the first condition information in FIG. 13A is hit (step S402), the disaster location information setting unit 33 causes the disaster candidate location information (X401, Y401), (X402, Y402) corresponding to the condition information. ... Are read out and stored in the disaster location information storage unit 12 (step S403). The subsequent processing is as described above. On the other hand, for example, when the natural phenomenon information “Region: A101, Rainfall: 10” is received by the natural phenomenon information receiving unit 32 (step S401), there is no condition information that is conditioned by the natural phenomenon information. (Step S402). Therefore, no evacuation route is generated. Moreover, although FIG. 13A shows the case where the condition information includes the region and the rainfall per hour, this need not be the case. For example, the condition information may include a region and an accumulated rainfall.

  Next, the case where the correspondence information is as shown in FIG. 13B will be described. In the correspondence information in FIG. 13B, the condition information includes the area and the type of alarm. In this case, for example, when the natural phenomenon information “region: A101, warning: flood warning” is received by the natural phenomenon information receiving unit 32 (step S401), the disaster location information setting unit 33 indicates that the region is A101, Search for condition information whose type is flood warning. In this case, since the second condition information in FIG. 13B is hit (step S402), the disaster location information setting unit 33 causes the disaster candidate location information (X801, Y801), (X802, Y802) corresponding to the condition information. ... Are read out and stored in the disaster location information storage unit 12 (step S403). The subsequent processing is as described above.

  Next, the case where the correspondence information is as shown in FIG. 13C will be described. In the correspondence information in FIG. 13C, the area and seismic intensity are included in the condition information. In this case, for example, when the natural phenomenon information “region: A102, seismic intensity: 6” is received by the natural phenomenon information receiving unit 32 (step S401), the disaster location information setting unit 33 has a region of A102, and the seismic intensity is The condition information including 6 is searched. In this case, since the third condition information in FIG. 13C is hit (step S402), the disaster location information setting unit 33 causes the disaster candidate location information (X1201, Y1201), (X1202, Y1202) corresponding to the condition information. ... Are read out and stored in the disaster location information storage unit 12 (step S403). The subsequent processing is as described above.

  Next, the case where the correspondence information is as shown in FIG. 13D will be described. In the correspondence information in FIG. 13D, the condition information is the same as in FIG. 13A, but the disaster candidate location information includes the current disaster candidate location and the disaster candidate location one hour later. In this case, for example, when the natural phenomenon information “region: A101, rainfall: 30” is received by the natural phenomenon information reception unit 32 (step S401), the disaster location information setting unit 33 indicates that the region is A101, Search for condition information whose range includes 30. In this case, the first condition information in FIG. 13D is hit (step S402). Therefore, the disaster location information setting unit 33 acquires the current time from a clock unit (not shown), and indicates the occurrence time that is the time and the disaster candidate location corresponding to the current (X1301, Y1301), (X1302, Y1302). Are read out and stored in the disaster location information storage unit 12. Further, the disaster location information setting unit 33 indicates an occurrence time that is a time obtained by adding one hour to a current time acquired from a clock unit (not shown), and a disaster candidate location corresponding to the hour after (X1401, Y1401), ( X1402, Y1402)... Are read out and stored in the disaster location information storage unit 12 (step S403). The subsequent processing is as described above.

  In this way, by setting the disaster candidate location information corresponding to the received natural phenomenon information in the disaster location information, it is possible to automatically set the disaster location information according to the natural phenomenon information. In the above description, the case where the local information is included in the natural phenomenon information and the condition information has been described. For example, when the evacuation route output device 1 is used only in a specific area, the area information may not be included in the natural phenomenon information or the condition information. Also, if it is near the coastline or near the estuary, the flooding area differs depending on whether it is at high tide. Accordingly, the condition information may include information indicating whether or not it is at high tide, and the disaster candidate location information corresponding to the condition information may be different depending on whether or not it is at high tide. Specifically, disaster candidate location information corresponding to the condition information “Region: A101, Rainfall: 20 or more and less than 40, high tide flag: 1” and Condition information “Region: A101, Rainfall: 20 or more and less than 40, High tide. The disaster candidate location information corresponding to “flag: 0” may be different. It should be noted that when the high tide flag is “1”, it indicates that the tide is high, and when the high tide flag is “0”, it indicates that the tide is not high. Then, information on whether or not the tide is at high tide may be added to the natural phenomenon information, and the natural phenomenon information and the condition information may be used to determine whether or not the condition is met.

  In FIG. 11, the evacuation route output device 1 replaces the reception unit 11 or the reception unit 21 and the disaster location information generation unit 22 with the correspondence information storage unit 31, the natural phenomenon information reception unit 32, and the disaster location information setting. Although the evacuation route output device 1 is shown together with the reception unit 11 or the reception unit 21 and the disaster location information generation unit 22, the correspondence information storage unit 31 and the natural phenomenon information reception are shown. The unit 32 and the disaster location information setting unit 33 may be provided. In that case, generation of an evacuation route corresponding to the reception target and the reception target is appropriately performed.

  In the above description, the case where the evacuation route information is generated when the disaster location information is received, the tsunami arrival altitude is received, or the natural phenomenon information is received is described. If the evacuees are in a safe place at the time of reception or reception, there is no need to evacuate. Therefore, before generating the evacuation route information, the evacuation route information generation unit 16 determines whether the generation is necessary, and if it is determined that the generation is not necessary, the evacuation route information may not be generated. Good. For example, when the current position is not included in the disaster location indicated by the disaster location information and is away from the disaster location by a predetermined threshold or more, the evacuation route information generation unit 16 generates evacuation route information. You may decide that it is not necessary.

  In the present embodiment, the receiving unit 11 receives the disaster location information and stores it in the disaster location information storage unit 12, or the disaster location information generation unit 22 generates the disaster location information and stores the disaster location information. In the case of storing in the unit 12, the case where the disaster location information setting unit 33 sets the disaster location information has been described, but this need not be the case. That is, the process in which the disaster location information is stored in the disaster location information storage unit 12 does not matter. For example, the disaster location information may be stored in the disaster location information storage unit 12 via a recording medium, or the disaster location information input via the input device is stored in the disaster location information storage unit 12. You may come to be. In addition, when the disaster location information or the like is not received by the receiving unit 11, the evacuation route output device 1 may not include the receiving unit 11.

  In the present embodiment, the case where the evacuation site information indicates two or more evacuation sites has been mainly described, but this need not be the case. The evacuation site information may indicate one evacuation site. In that case, the evacuation route information generation part 16 shall generate | occur | produce the evacuation route information to the one evacuation place. In addition, when the one evacuation site is included in the disaster area indicated by the disaster site information, the evacuation route information generation unit 16 does not need to generate the evacuation route information because it is an error.

  In the present embodiment, the occurrence time is associated with the disaster location information, and the case where the evacuation route information is generated also using the occurrence time has been mainly described, but this need not be the case. That is, the evacuation route information generation unit 16 may generate evacuation route information that does not pass through the disaster area indicated by the disaster location information regardless of the time. In that case, the occurrence time corresponding to the disaster location information may not be stored in the disaster location information storage unit 12.

  Further, as described above, the evacuation route output device 1 may be a stand-alone device or a server device in a server / client system.

  In the above embodiment, each process or each function may be realized by centralized processing by a single device or a single system, or may be distributedly processed by a plurality of devices or a plurality of systems. It may be realized by doing.

  In the above embodiment, the information exchange between the components is performed by one component when, for example, the two components that exchange the information are physically different from each other. It may be performed by outputting information and receiving information by the other component, or when two components that exchange information are physically the same, one component May be performed by moving from the phase of the process corresponding to to the phase of the process corresponding to the other component.

  In the above embodiment, information related to processing executed by each component, for example, information received, acquired, selected, generated, transmitted, or received by each component In addition, information such as threshold values, mathematical formulas, addresses, etc. used by each component in processing is retained temporarily or over a long period of time on a recording medium (not shown) even when not explicitly stated in the above description. It may be. Further, the storage of information in the recording medium (not shown) may be performed by each component or a storage unit (not shown). Further, reading of information from the recording medium (not shown) may be performed by each component or a reading unit (not shown).

  In the above embodiment, when information used by each component, for example, information such as a threshold value, an address, and various setting values used by each component may be changed by the user Even if it is not specified in the above description, the user may be able to change the information as appropriate, or it may not be. If the information can be changed by the user, the change is realized by, for example, a not-shown receiving unit that receives a change instruction from the user and a changing unit (not shown) that changes the information in accordance with the change instruction. May be. The change instruction received by the receiving unit (not shown) may be received from an input device, information received via a communication line, or information read from a predetermined recording medium, for example. .

  In the above embodiment, when two or more components included in the evacuation route output apparatus 1 have communication devices, input devices, etc., the two or more components have a physically single device. Or may have separate devices.

  In the above embodiment, each component may be configured by dedicated hardware, or a component that can be realized by software may be realized by executing a program. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory. At the time of execution, the program execution unit may execute the program while accessing the storage unit or the recording medium. In addition, the software which implement | achieves the evacuation route output apparatus in the said embodiment is the following programs. In other words, this program includes a disaster location information storage unit that stores disaster location information indicating the location of the disaster, an evacuation location information storage unit that stores evacuation location information indicating the evacuation location, and map information that is information about the map. Is a route from the current position acquired by the current position acquisition unit that acquires the current position to the position of the evacuation site information, and the location indicated by the disaster area information. This is a program for functioning as an evacuation route information generation unit that generates evacuation route information that is information relating to an evacuation route that does not pass through the route, and an output unit that outputs map information and evacuation route information.

  In the program, the functions realized by the program do not include functions that can be realized only by hardware. For example, functions that can be realized only by hardware such as a modem or an interface card in an acquisition unit that acquires information, an output unit that outputs information, and the like are not included in at least the functions realized by the program.

  Further, this program may be executed by being downloaded from a server or the like, and a program recorded on a predetermined recording medium (for example, an optical disk such as a CD-ROM, a magnetic disk, a semiconductor memory, or the like) is read out. May be executed by Further, this program may be used as a program constituting a program product.

  Further, the computer that executes this program may be singular or plural. That is, centralized processing may be performed, or distributed processing may be performed.

  FIG. 14 is a schematic diagram showing an example of the external appearance of a computer that executes the program and realizes the evacuation route output device 1 according to the embodiment. The above-described embodiment can be realized by computer hardware and a computer program executed on the computer hardware.

  14, a computer system 900 includes a computer 901 including a CD-ROM (Compact Disk Read Only Memory) drive 905 and an FD (Floppy (registered trademark) Disk) drive 906, a keyboard 902, a mouse 903, a monitor 904, and the like. Is provided.

  FIG. 15 is a diagram showing an internal configuration of the computer system 900. In FIG. 15, in addition to the CD-ROM drive 905 and the FD drive 906, a computer 901 is connected to an MPU (Micro Processing Unit) 911, a ROM 912 for storing a program such as a bootup program, and the MPU 911. A RAM (Random Access Memory) 913 that temporarily stores program instructions and provides a temporary storage space, a hard disk 914 that stores application programs, system programs, and data, and an MPU 911 and a ROM 912 are interconnected. And a bus 915. The computer 901 may include a network card (not shown) that provides connection to a LAN, WAN, or the like.

  A program for causing the computer system 900 to execute the function of the evacuation route output device 1 according to the above-described embodiment is stored in the CD-ROM 921 or FD 922 and inserted into the CD-ROM drive 905 or FD drive 906, and the hard disk 914. May be forwarded to. Instead, the program may be transmitted to the computer 901 via a network (not shown) and stored in the hard disk 914. The program is loaded into the RAM 913 when executed. The program may be loaded directly from the CD-ROM 921, the FD 922, or the network.

  The program does not necessarily include an operating system (OS), a third party program, or the like that causes the computer 901 to execute the function of the evacuation route output device 1 according to the above embodiment. The program may include only a part of an instruction that calls an appropriate function (module) in a controlled manner and obtains a desired result. How the computer system 900 operates is well known and will not be described in detail.

  Further, the present invention is not limited to the above-described embodiment, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, according to the evacuation route output device and the like according to the present invention, an effect that a safe evacuation route can be presented is obtained, and it is useful as a device or the like that presents an evacuation route to an evacuation site in a disaster.

DESCRIPTION OF SYMBOLS 1 Evacuation route output apparatus 11 Receiving part 12 Disaster location information storage part 13 Evacuation place information storage part 14 Map information storage part 15 Current position acquisition part 16 Evacuation route information generation part 17 Output part 21 Reception part 22 Disaster area information generation part 31 Correspondence Information storage unit 32 Natural phenomenon information reception unit 33 Disaster location information setting unit

Claims (9)

A disaster location information storage unit for storing disaster location information indicating the location of the disaster;
An evacuation site information storage unit for storing evacuation site information indicating an evacuation site;
A map information storage unit that stores map information that is information about the map;
A current position acquisition unit for acquiring the current position;
Generates evacuation route information that is information about an evacuation route that is a route from the current position acquired by the current position acquisition unit to the position of the evacuation location information and does not pass through the location indicated by the disaster location information. An evacuation route information generation unit;
An evacuation route output device comprising: an output unit that outputs the map information and the evacuation route information. In the disaster location information storage unit, the disaster location information and the occurrence time of the disaster corresponding to the disaster location information are stored,
The evacuation route information generation unit also generates a scheduled passage time in the route, and is a route from the current position to the position of the evacuation site information, and the location indicated by the disaster site information is the disaster site information. The evacuation route output device according to claim 1, wherein the evacuation route output device generates evacuation route information related to an evacuation route that is a route that does not pass after the occurrence time corresponding to. The evacuation site information storage unit stores evacuation site information indicating two or more evacuation sites,
The evacuation route output device according to claim 1 or 2, wherein the evacuation route information generation unit generates evacuation route information related to an evacuation route to a position indicated by evacuation place information that does not exist in the place indicated by the disaster area information. A correspondence information storage unit that stores correspondence information that is information for associating condition information indicating a condition related to a natural phenomenon and disaster candidate location information indicating a location to be damaged when the condition indicated by the condition information is satisfied;
A natural phenomenon information receiving unit that receives natural phenomenon information that is information related to natural phenomena;
The disaster location information setting part which sets the disaster candidate location information corresponding to the condition information in which conditions are satisfied by the natural phenomenon information received by the natural phenomenon information reception unit as disaster location information. The evacuation route output device according to claim 3. The map information is information relating to a map having three-dimensional coordinate information,
A reception unit that receives the tsunami arrival altitude,
A disaster location information generating unit that generates disaster location information indicating an area in which an altitude value that is a coordinate value in the height direction is equal to or less than an arrival altitude received by the reception unit, and that accumulates in the disaster location information storage unit; The evacuation route output device according to any one of claims 1 to 4, further comprising: The map information is information relating to a map having three-dimensional coordinate information,
A reception desk for receiving flood inundation altitude,
A disaster location information generating unit that generates disaster location information indicating an area where the elevation value, which is a coordinate value in the height direction, is less than or equal to the inundation height received by the reception unit, and accumulates in the disaster location information storage unit; The evacuation route output device according to any one of claims 1 to 4, further comprising: The evacuation route output device according to any one of claims 1 to 3, further comprising a receiving unit that receives the disaster location information and accumulates it in the disaster location information storage unit. A disaster location information storage unit for storing disaster location information indicating the location of the disaster, an evacuation location information storage unit for storing evacuation location information indicating the evacuation location, and map information for storing map information that is information about the map An evacuation route output method processed using a storage unit, a current position acquisition unit, an evacuation route information generation unit, and an output unit,
The current position acquisition unit acquires a current position, a current position acquisition step;
Information related to the evacuation route, which is a route from the current position acquired in the current position acquisition step to the position of the evacuation location information, and does not pass through the location indicated by the disaster location information, by the evacuation route information generation unit An evacuation route information generation step for generating evacuation route information,
An evacuation route output method comprising: an output step in which the output unit outputs the map information and the evacuation route information. A disaster location information storage unit for storing disaster location information indicating the location of the disaster, an evacuation location information storage unit for storing evacuation location information indicating the evacuation location, and map information for storing map information that is information about the map A computer accessible to the storage unit
An evacuation route that is information about an evacuation route that is a route from the current position acquired by the current position acquisition unit that acquires the current position to the position of the evacuation location information and does not pass through the location indicated by the disaster location information An evacuation route information generation unit for generating information,
A program for functioning as an output unit that outputs the map information and the evacuation route information.

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