Evacuation route guidance system, evacuation route creation method and program

Abstract

An evacuation route guidance system comprising: a movement analysis means that is capable of obtaining images captured by cameras disposed around roads in an area of interest, and obtaining a hazard map including the locations of dangerous spots and the locations of safe areas in the area of interest, and that analyzes movements of moving bodies traveling on the roads in the area of interest, on the basis of images captured by the cameras, during the occurrence of a disaster; a route creation means that creates routes that allow movements to the safe areas while avoiding the dangerous spots and that are suitable for the movements of the moving bodies traveling on the roads; and a route output means that outputs the routes on a predetermined display device.

Description

[Technical field]

[0001] The present invention relates to an evacuation route guidance system, an evacuation route creation method, and a program. To Regarding. [Background technology]

[0002] Patent Document 1 discloses a real-time hazard map system that can respond to actual floods and inundation that change from moment to moment. According to the document, this real-time hazard map system is equipped with a function to retrieve inundation and water depth information (including underground shopping malls) from inundation and waterlogging sensors, etc., and is also equipped with a flood situation display means that automatically draws the information on a map to provide a flood situation diagram (area and location, water depth).

[0003] Patent Document 2 discloses an evacuation guidance system that can automatically determine the location of people who need to evacuate, and at the same time select a less dangerous evacuation route and guide them to an evacuation site. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-168179 A [Patent Document 2] JP 2005-17027 A Summary of the Invention [Problem to be solved by the invention]

[0005] The following analysis is provided by the inventor. Although hazard maps are provided by local governments, the reality is that residents decide to move to evacuation shelters on their own. In the past, there have been cases where people tried to move by car during floods caused by heavy rain, resulting in their car becoming unable to move, or where people were caught in a tsunami during an earthquake.

[0006] Although the real-time hazard map system in Patent Document 1 also describes the ability to display safe evacuation routes, since disasters change from moment to moment, there is no guarantee that the evacuation routes displayed are necessarily passable. Conversely, it is possible that the water in a section determined to be flooded recedes, making it passable on foot.

[0007] The evacuation guidance system of Patent Document 2 also creates evacuation routes by referring to danger information in a disaster-related information database, and is not necessarily capable of creating the optimal evacuation route at each time.

[0008] The present invention relates to an evacuation route guidance system, an evacuation route creation method, and a program that can provide an appropriate evacuation route based on the real-time disaster situation. M The purpose is to provide. [Means for solving the problem]

[0009] According to a first aspect, it is possible to obtain images taken by cameras arranged around roads in a target area and a hazard map including the locations of dangerous spots and safe areas in the target area, and in the event of a disaster, a movement analysis means is provided for analyzing the movement of moving objects traveling on the roads in the target area based on the images taken by the cameras, a route creation means is provided for creating a route that avoids the dangerous spots and allows movement to the safe area, and that is compatible with the movement of moving objects traveling on the roads, and a route output means is provided for outputting the route on a predetermined display device. An evacuation route guidance system is provided.

[0010] According to a second aspect, there is provided an evacuation route creation method that is implemented by a computer capable of acquiring images taken by cameras arranged around roads in a target area and a hazard map including the locations of dangerous places and safe areas in the target area. According to this evacuation route creation method, the computer analyzes the movement of moving objects passing through the roads in the target area based on the images taken by the cameras when a disaster occurs, creates a route that avoids the dangerous places and moves to the safe area, and that is compatible with the movement of the moving objects passing through the roads, and outputs the route to a specified display device. This method is linked to a specific machine, that is, a computer capable of acquiring the camera images and the hazard map.

[0011] According to a third aspect, a computer program (hereinafter, a program) for realizing the functions of the above-mentioned evacuation route guidance system is provided. The computer program is input to the computer device from an input device or from the outside via a communication interface, stored in a storage device, and drives the processor according to a predetermined step or process. The program can display the processing result including an intermediate state at each stage via a display device as necessary, or can communicate with the outside via the communication interface. For example, the computer device for this purpose typically includes a processor, a storage device, an input device, a communication interface, and a display device as necessary, which are connectable to each other via a bus. The program can be recorded on a computer-readable (non-transitive) storage medium. That is, the present invention can also be embodied as a computer program product. Effect of the Invention

[0012] According to the present invention, it is possible to provide an appropriate evacuation route based on the real-time disaster situation. [Brief description of the drawings]

[0013] [Figure 1]FIG. 1 is a diagram showing a configuration of an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram for explaining the operation of one embodiment of the present invention. [Diagram 3] 1 is a diagram illustrating a configuration of an evacuation route guide server according to a first embodiment of the present invention. [Figure 4] FIG. 2 is a diagram showing an example of the arrangement of fixed cameras used in the first embodiment of the present invention. [Diagram 5] 4 is a flowchart showing the operation of the evacuation route guide server according to the first embodiment of the present invention. [Figure 6] FIG. 2 is a diagram for explaining the operation of the evacuation route guide server according to the first embodiment of the present invention. [Figure 7] FIG. 2 is a diagram for explaining the operation of the evacuation route guide server according to the first embodiment of the present invention. [Figure 8] FIG. 11 is a diagram illustrating a configuration of an evacuation route guide server according to a second embodiment of the present invention. [Figure 9] 10 is a flowchart showing the operation of an evacuation route guide server according to the second embodiment of the present invention. [Figure 10] FIG. 11 is a diagram for explaining the operation of the evacuation route guide server according to the second embodiment of the present invention. [Figure 11] FIG. 11 is a diagram showing a configuration of an evacuation route guide server according to a third embodiment of the present invention. [Figure 12] 13 is a flowchart showing the operation of an evacuation route guide server according to the third exemplary embodiment of the present invention. [Figure 13] FIG. 11 is a diagram for explaining the operation of the evacuation route guide server according to the third embodiment of the present invention. [Figure 14] FIG. 13 is a diagram showing a configuration of an evacuation route guide server according to a fourth embodiment of the present invention. [Figure 15] FIG. 13 is a diagram for explaining the operation of the evacuation route guide server according to the fourth embodiment of the present invention. [Figure 16] FIG. 13 is a diagram for explaining the operation of the evacuation route guide server according to the fourth embodiment of the present invention. [Figure 17] FIG. 1 is a diagram showing the configuration of a computer capable of functioning as an information providing server of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] First, an overview of one embodiment of the present invention will be described with reference to the drawings. Note that the reference numerals in the drawings are added to each element for convenience as an example to aid in understanding, and are not intended to limit the present invention to the illustrated embodiment. Also, the connection lines between blocks in the drawings and the like referred to in the following description include both bidirectional and unidirectional. One-way arrows are used to diagrammatically indicate the flow of main signals (data), and do not exclude bidirectionality. Also, although there are ports or interfaces at the connection points of input and output of each block in the drawings, they are not shown. A program is executed via a computer device, and the computer device includes, for example, a processor, a storage device, an input device, a communication interface, and a display device as necessary. Also, the computer device is configured to be able to communicate with devices (including computers) inside or outside the device via the communication interface, regardless of whether it is wired or wireless. Also, there are ports or interfaces at the connection points of input and output of each block in the drawings, but they are not shown.

[0015] In one embodiment, the present invention can be realized by an evacuation route guidance system 10 configured to be able to acquire images taken by cameras 20 installed around roads in a target area, and a hazard map 14, as shown in Fig. 1. Here, the hazard map 14 includes the locations of dangerous points and safe areas in the target area.

[0016] This evacuation route guidance system 10 includes a movement analysis means 11, a route creation means 12, and a route output means 13. More specifically, the movement analysis means 11 analyzes the movement of moving objects traveling on roads in the target area based on images captured by the camera when a disaster occurs. The route creation means 12 creates a route that avoids the dangerous spots and allows movement to the safe area, and that is compatible with the movement of moving objects traveling on the roads. The route output means 13 outputs the route to a specified display device.

[0017] Next, the operation of this embodiment will be described in detail with reference to Fig. 2. When a disaster occurs, the movement analysis means 11 analyzes the movement of a moving object passing through the roads in the target area based on the image captured by the camera 20. In Fig. 2, the outlined arrows represent the movement of a moving object passing through an intersection. For example, in the example of Fig. 2, a vehicle on fire exists between intersections B and C, preventing passage, so it is detected that a moving object heading from intersection A to intersection B turns left and heads toward intersection D.

[0018] Meanwhile, the route creation means 12 creates a route that can move to the safe area while avoiding the dangerous areas (danger spots) in the hazard map 14, and that is suitable for the movement of a mobile object passing through the road. For example, there are at least two routes from intersection A at the user's position in Fig. 2 to a shelter as one of the safe areas: a route via intersection A-intersection B-intersection C-intersection E-intersection G, and a route via intersection A-intersection B-intersection D-intersection F-intersection G. From the two routes, the route creation means 12 selects a route that is suitable for the movement of a mobile object passing through the intersection, that is, a route via intersection A-intersection B-intersection D-intersection F-intersection G.

[0019] Then, the route output means 13 outputs and displays on a predetermined display device a route that passes through intersection A-intersection B-intersection D-intersection F-intersection G. The route presented in this way is not simply a route that avoids dangerous areas (dangerous points) on the hazard map 14 and moves to the safe area, but is a route that is suitable for the movement of mobile objects traveling on the road. This allows the user to move safely from the current location to a shelter.

[0020] The above-described evacuation route guidance system 10 can also be realized by, for example, having a user's smartphone, mobile terminal, or in-vehicle terminal execute a program that realizes the above-described functions. That is, the evacuation route guidance system 10 can also be realized as a smartphone, mobile terminal, or in-vehicle terminal having the above-described functions.

[0021] [First embodiment] Next, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 3 is a diagram showing the configuration of the first embodiment of the present invention. Referring to FIG. 3, the configuration of an evacuation route guidance server 100 connected to a plurality of cameras 200 is shown. The evacuation route guidance server 100 includes a motion analysis unit 101, a route creation unit 102, an evacuation route transmission unit 103, and a hazard map storage unit 104. Such an evacuation route guidance server 100 can be realized by a server arranged on a cloud platform or a MEC (Multi-access Edge Computing) server installed near the service target area.

[0022] Fig. 4 is a diagram showing an example of the arrangement of the camera 200 used in the first embodiment of the present invention. In the following embodiment, a camera attached to a traffic signal 500 at an intersection as shown in Fig. 4 is used as the camera 200. One advantage of using such a camera attached to a traffic signal 500 is that it can be installed at a position overlooking the traffic flow at the intersection as shown in Fig. 4, and existing signal control systems can be used as the power source and communication means. Of course, the camera 200 is not limited to the camera 200 attached to the traffic signal 500 shown in Fig. 4, and any other camera installed on the roadside in general can be used.

[0023] When a disaster occurs, the motion analysis unit 101 analyzes the motion of a moving object passing through each intersection in the target area based on an image captured by the camera 200. Here, the moving object to be analyzed by the motion analysis unit 101 may be a vehicle or a person. The motion of this moving object may be recognized by recognizing an area in the image in which a vehicle or a person is captured, and using the size and motion of this area in the image, the motion of the moving object may be understood. In addition, a method of using a classifier created in advance by machine learning may be used as a method of recognizing an area in the image in which a vehicle or a person is captured.

[0024] The hazard map storage unit 104 stores a hazard map created by a local government or the like based on records of past disasters and on-site investigations. In this embodiment, the hazard map will be described as including the locations of dangerous spots in a target area and the locations of safe areas such as evacuation shelters.

[0025] When the user's current location or an arbitrary starting point is input, the route creation unit 102 creates one or more routes that can lead from that location to a safe area such as a shelter while avoiding dangerous places. Furthermore, the route creation unit 102 creates an evacuation route by selecting a route that is suitable for the movement of a mobile object passing through the intersection from among the routes.

[0026] The evacuation route transmission unit 103 transmits the evacuation route created by the route creation unit 102 to the terminal 400 carried by the user.

[0027] The terminal 400 carried by the user is a smartphone, a mobile terminal, or an in-vehicle terminal capable of displaying the evacuation route transmitted by the evacuation route transmission unit 103. The transmission of the evacuation route from the evacuation route guidance server 100 to the terminal 400 may be performed using a device selected according to the functions of the terminal. For example, when the terminal 400 is a smartphone, the terminal 400 may receive route information from the evacuation route guidance server 100 using a function of an application (software) installed on the terminal 400. When the terminal 400 is an in-vehicle terminal, in addition to the above-mentioned method, the terminal 400 may be reflected in a dynamic map, or broadcast from a base station installed as a traffic infrastructure. The terminal 400 may be an information receiving terminal connected to a traffic information display board or the like.

[0028] Next, the operation of this embodiment will be described in detail with reference to the drawings. FIG. 5 is a flow chart showing the operation of the evacuation route guidance server 100 of the first embodiment of the present invention when a disaster occurs. Referring to FIG. 5, first, the evacuation route guidance server 100 refers to a hazard map and creates one or more routes that can lead from an arbitrary starting point to a safe area such as a shelter while avoiding dangerous places (step S001). Note that, as the arbitrary starting point, the current location of the terminal 400 that is the transmission destination of the evacuation route or a point specified by the terminal 400 can be used. In addition, the current location of the terminal 400 can be obtained by a location information obtaining means of the terminal such as a GPS (Global Positioning System). For example, the evacuation route guidance server 100 creates three routes from the current location of the user u to the shelter (dashed line, dotted line, and dashed line) as shown in FIG. 6.

[0029] Next, the evacuation route guidance server 100 analyzes the movement of the moving object passing through each intersection in the target area based on the image captured by the camera 200 (step S002). For example, it is assumed here that the evacuation route guidance server 100 detects the movement of the moving object represented by the white arrow at each intersection in FIG. 6.

[0030] Next, the evacuation route guidance server 100 selects one or more routes that are highly compatible with the movement of the moving object from among the routes created in step S001 (step S003). This route selection can be performed, for example, by calculating a score indicating the degree of compatibility with the movement of the moving object analyzed in step S002 for each of the routes created in step S001, and selecting the route with the highest score. For example, of the three routes shown in FIG. 6, the route shown by the dashed line includes a section that is blocked by a broken-down vehicle V and is not compatible with the movement of the moving object, and is therefore excluded from the selection candidates. In this way, an evacuation route is created that allows the user to move to the safe area while avoiding dangerous locations, and that is compatible with the movement of the moving object passing through the intersection.

[0031] Next, the evacuation route guidance server 100 transmits the created evacuation route to the terminal 400 carried by the user (step S004).

[0032] As described above, according to this embodiment, it is possible to create a route that not only avoids dangerous places on a hazard map but also allows a user to move to a safe area such as a shelter, and to guide the user along the route. In the above embodiment, it has been described that the user's current location and an arbitrary starting point are input from the user's terminal 400 or a communication carrier when a disaster occurs, but the trigger for creating an evacuation route is not limited to this. For example, after receiving an explicit request to transmit an evacuation route from the user, the evacuation route guidance server 100 may accept the input of the user's current location and an arbitrary starting point and create an evacuation route. In this way, it is possible for a user in a remote location to obtain an evacuation route from the evacuation route guidance server 100 for family members and the like in the disaster area.

[0033] In the above description, the evacuation route guidance server 100 creates one or more evacuation routes and then analyzes the movements of moving objects passing through each intersection in the target area. However, the processing of steps S001 and S002 described above may be executed in parallel or interchangeably.

[0034] [Second embodiment] Next, a second embodiment will be described in which the movement of a moving object according to attributes is analyzed from images captured by a camera, and a route according to the attributes is created. The configuration and operation of the second embodiment are almost the same as those of the first embodiment, so the following description will focus on the differences.

[0035] Fig. 8 is a block diagram showing the configuration of an evacuation route guidance server 100a according to a second embodiment of the present invention. The difference from the evacuation route guidance server 100 according to the first embodiment shown in Fig. 3 is that a movement analysis unit 101a of the evacuation route guidance server 100a analyzes the movement of a moving object by attribute, and a route creation unit 102a creates an evacuation route by attribute. In the following explanation, an example will be given in which the "attribute" of a moving object is an attribute indicating the type of moving object, such as a vehicle, a pedestrian, or a bicycle.

[0036] Next, the operation of this embodiment will be described in detail with reference to the drawings. Fig. 9 is a flow chart showing the operation of the evacuation route guide server 100a of this embodiment. The operation of step S001 in Fig. 9 is the same as that of the first embodiment, so the description will be omitted.

[0037] In step S002a, the evacuation route guidance server 100a analyzes the movement of moving objects passing through each intersection in the target area by attribute, based on the images captured by the camera 200. Here, for example, it is assumed that the evacuation route guidance server 100a detects the movement of moving objects represented by white arrows and thick black arrows shown at each intersection in Fig. 10. Here, it is assumed that the white arrows in Fig. 10 indicate the movement of vehicles, and the thick black arrows indicate the movement of pedestrians.

[0038] In step S003a, the evacuation route guidance server 100a selects one or more routes that are highly compatible with the movement of the moving object by attribute from among the routes created in step S001 (step S003a). For example, the evacuation route guidance server 100a selects the route shown by the dotted line in Fig. 10 as an evacuation route for vehicles. The evacuation route guidance server 100a also selects the route shown by the dashed line in Fig. 10 as an evacuation route for pedestrians. As shown in Fig. 10, this route for pedestrians is selected based on the analysis result of pedestrian movement that indicates that pedestrians can pass through the section where the burning vehicle V is present.

[0039] Next, the evacuation route guidance server 100a transmits the created attribute-specific evacuation routes to the terminal 400 carried by the user (step S004a).

[0040] As described above, according to this embodiment, it is possible to not only avoid dangerous places on a hazard map, but also to create a route that can realistically move to a shelter while considering the attributes of the user, and to guide the user along the route. In particular, in this embodiment, as shown in Fig. 10, when a section that is impassable to users with a certain attribute is passable to users with another attribute, it is possible to guide the user along a more optimal route.

[0041] In the above description, the "attributes" of a moving body are exemplified as attributes indicating the type of moving body, such as a vehicle, a pedestrian, a bicycle, etc., but the "attributes" of a moving body are not limited to this. For example, attributes of pedestrians, such as able-bodied people, wheelchair users, cane users, etc., may be set, and evacuation routes may be created according to each attribute. Similarly, attributes of vehicles, such as regular passenger cars, large vehicles, motorcycles, etc., may be set, and evacuation routes may be created according to each attribute.

[0042] [Third embodiment] Next, a third embodiment will be described in which the moving speed and number of moving objects are analyzed from images captured by a camera, and an evacuation route is created based on the analysis. The configuration and operation of the third embodiment are almost the same as those of the first embodiment, so the following description will focus on the differences.

[0043] Fig. 11 is a block diagram showing the configuration of an evacuation route guidance server 100b according to the third embodiment of the present invention. The difference from the evacuation route guidance server 100 of the first embodiment shown in Fig. 3 is that a movement analysis unit 101b of the evacuation route guidance server 100b analyzes the number of moving objects and their moving speeds, and a route creation unit 102b creates an evacuation route taking these into consideration.

[0044] The motion analysis unit 101b counts the number of moving objects that have passed through each intersection in the target area within a predetermined time in the past based on the image captured by the camera 200 when a disaster occurs. The motion analysis unit 101b calculates the moving speed of the moving object that has passed through each intersection in the target area within a predetermined time in the past based on the image captured by the camera 200 when a disaster occurs. Here, the speed of each moving object can be calculated by obtaining the moving distance from the difference between the position of the moving object in an image acquired at a certain timing and the position of the moving object in an image acquired at the next timing. The motion analysis unit 101b calculates the moving speed of the moving object that has passed through each intersection in the target area within a predetermined time in the past based on the moving speed of each moving object. Note that, as the moving speed, for example, a value obtained by statistically processing the speed of each moving object within a predetermined time can be used, and for example, an average, a maximum value, or a mode can also be used.

[0045] When selecting a route suitable for the movement of the moving objects passing through the intersection from among one or more routes that can lead to a location of a safe area such as the evacuation shelter, the route creation unit 102b selects the route by referring to the number of the moving objects and the movement speeds of the moving objects.

[0046] Specifically, when there are two or more routes that can lead to a location of a safe area such as the above-mentioned shelter and that are suitable for the movement of the moving object passing through the intersection, the route creation unit 102b selects the route with the greater number of moving objects. Also, when there are two or more routes that can lead to a location of a safe area such as the above-mentioned shelter and that are suitable for the movement of the moving object passing through the intersection, the route creation unit 102b selects the route with the greater moving speed of the moving object. There are roughly two methods for selecting a route. One is a method of comparing the number of moving objects or the moving speed of the moving object at a target intersection (which is the starting point of the difference between the two routes). The other is a method of comparing the total value of the number of moving objects or the moving speed of the moving object at all intersections on the route. The latter method requires a larger amount of calculation, but it is possible to select a route that is easier to evacuate in a comprehensive manner. Also, in both methods, when both the number of moving objects and the moving speed of the moving object are taken into consideration, weighting is applied to both, a score is calculated for each route, and the scores of both are compared to determine which route to select.

[0047] Next, the operation of this embodiment will be described in detail with reference to the drawings. Fig. 12 is a flow chart showing the operation of the evacuation route guide server 100b of this embodiment. The operation of step S001 in Fig. 12 is the same as that of the first embodiment, so the description will be omitted.

[0048] In step S0021, the evacuation route guidance server 100b refers to images captured by the camera 200 during a predetermined period in the past, and counts the number of moving objects that have passed through each intersection in the target area.

[0049] In the next step S0022, the evacuation route guidance server 100b refers to images taken by the camera 200 for a predetermined period of time in the past and calculates the moving speed of the moving object that passed through each intersection in the target area.

[0050] Fig. 13 is a diagram in which the number and moving speeds of moving objects obtained in steps S0021 and S0022 are represented by open arrows. The width of the arrows in Fig. 13 represents the number of moving objects, and the length of the arrows represents the moving speeds of the moving objects. For example, at intersection D in Fig. 13, there are arrows pointing to intersection E and arrows pointing to intersection F, but the arrow pointing to intersection F is thicker and longer. This means that there were more moving objects that moved from intersection D to intersection F, and that their moving speeds were also faster.

[0051] Next, the evacuation route guidance server 100b selects a route that matches the movement of the moving objects passing through the intersection from among one or more routes that can lead to a safe area such as the evacuation shelter. At that time, the evacuation route guidance server 100b selects a route by referring to the number of moving objects and the moving speed of the moving objects (step S003c). Specifically, the evacuation route guidance server 100b selects a route with a large number of moving objects that have passed each intersection and a high moving speed. For example, if there are three routes from the current location of the user u to the evacuation shelter (dashed line, dotted line, and dashed line in FIG. 6), the evacuation route guidance server 100b selects a route by referring to the number of moving objects that have passed the intersection and the moving speed, as shown in FIG. 13.

[0052] Finally, the evacuation route guidance server 100b transmits the created evacuation route to the terminal 400 carried by the user (step S004).

[0053] As described above, according to this embodiment, it is possible to not only avoid dangerous spots on a hazard map, but also to create an easy-to-pass route that is likely to allow quick evacuation and to guide the user along the route, because the system is configured to select a route based on the number of moving objects that have passed through each intersection in the target area and their moving speeds.

[0054] In the above embodiment, both the number of moving bodies and their moving speeds are calculated, and a route is selected based on these. However, it is also possible to calculate only either the number of moving bodies or their moving speeds and select a route.

[0055] The third embodiment and the second embodiment can be combined. In this case, both the number of movements and the moving speed of the moving object are calculated for each attribute of the moving object. This makes it possible to create an optimal evacuation route that is easy to follow and has a high possibility of allowing quick evacuation for each attribute of the moving object, and to guide the user to the optimal evacuation route.

[0056] [Fourth embodiment] Next, a fourth embodiment will be described in which the hazard map to be referred to is switched depending on the disaster that has occurred. The configuration and operation of the fourth embodiment are almost the same as those of the first embodiment, so the following description will focus on the differences.

[0057] Fig. 14 is a block diagram showing the configuration of an evacuation route guidance server 100c according to a fourth embodiment of the present invention. The first difference from the evacuation route guidance server 100 according to the first embodiment shown in Fig. 3 is that a plurality of hazard maps corresponding to the type and scale of disasters are registered in advance in the hazard map storage unit 104c. The second difference between the evacuation route guidance server 100c and the evacuation route guidance server 100 according to the first embodiment is that a hazard map selection unit 105 is added to the evacuation route guidance server 100c.

[0058] When a disaster occurs, the hazard map selection unit 105 obtains a hazard map according to the type and size of the disaster from the hazard map storage unit 104c, and passes it to the route creation unit 102. The type and size of the disaster may be obtained from disaster information or news sent by organizations such as the Japan Meteorological Agency, but the hazard map selection unit 105 may determine the type and size of the disaster from an image captured by the camera 200.

[0059] FIG. 15 is a diagram showing an example of a hazard map when the disaster that has occurred is a flood and a route created by the evacuation route guidance server 100c. FIG. 16 is a diagram showing an example of a hazard map when the disaster that has occurred is an earthquake and a route created by the evacuation route guidance server 100c. As shown in FIG. 15 and FIG. 16, the dangerous spots on the hazard map may change depending on the type and scale of the disaster. In addition, for evacuation sites, buildings with high earthquake resistance or buildings in areas with low possibility of fire spreading may be designated in the case of an earthquake, and buildings on high ground may be designated in the case of a flood. Similarly, even if the type of disaster is the same, the dangerous spots and evacuation sites may change depending on the scale of the disaster. According to this embodiment, it is possible to guide evacuation routes according to the type and scale of these disasters.

[0060] The fourth embodiment may be implemented in combination with the second and third embodiments. In this case, an evacuation route is created taking into consideration both the attributes of the moving object and the number of movements at each intersection and the moving speed.

[0061] Although each embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiments, and further modifications, substitutions, and adjustments can be made without departing from the basic technical idea of ​​the present invention. For example, the device configurations, element configurations, and data expression forms shown in the drawings are examples to help understand the present invention, and the present invention is not limited to the configurations shown in these drawings.

[0062] For example, in the above embodiment, the evacuation route guidance system has been described as being capable of capturing the movements of moving objects at multiple intersections in the target area, but it is also assumed that it is difficult to install cameras at many intersections. In such a case, the system may be configured to acquire camera images only at intersections that are key points for evacuation within the target area. Even with this configuration, it is possible to create a safer evacuation route by analyzing the movements of moving objects and selecting and creating a route based on the analysis.

[0063] For example, in the above embodiment, the evacuation route guidance system has been described as being configured by the evacuation route guidance servers 100-100c, but the evacuation route guidance system can be realized by a computer capable of acquiring the images from the camera 200 and the hazard map. For example, by adding a function for acquiring the images from the camera 200 and a function for acquiring the hazard map to a user's smartphone or an in-vehicle terminal, it is possible to configure the evacuation route guidance system using these devices alone.

[0064] In the above embodiment, the evacuation route guidance servers 100-100c are described as analyzing the movement of moving objects using images from the camera 200, but it is also possible to configure the evacuation route guidance servers 100-100c to analyze the movement of moving objects using other information as well. For example, the number of moving objects can be measured using a sensor for measuring traffic flow or monitoring congestion. In addition, if the moving objects include an autonomous vehicle or a mobile terminal with a position tracking function, it is also possible to adopt a configuration in which the movements at intersections are obtained directly from these moving objects.

[0065] In addition, although the above description has been given of creating a route by analyzing the movement of the moving object, the evacuation route guidance servers 100-100c may create a route using other information. For example, if the camera 200 can determine that the road surface is in a bad condition, it may be possible to know that the section is impassable without even analyzing the movement of the moving object. In this case, the evacuation route guidance servers 100-100c can create a safe route by creating a route that does not use the sections with poor road surface conditions.

[0066] The procedures shown in the above-described embodiments can be realized by a program that causes a computer (9000 in FIG. 17) functioning as an evacuation route guidance server to function as an information providing server. Such a computer is exemplified by a configuration including a CPU (Central Processing Unit) 9010, a communication interface 9020, a memory 9030, and an auxiliary storage device 9040 in FIG. 17. That is, an image analysis program and a route creation program may be executed by the CPU 9010 in FIG. 17.

[0067] That is, each unit (processing means, function) of the above-mentioned evacuation route guide servers 100 to 100c can be realized by a computer program that causes a processor mounted on these devices to execute each of the above-mentioned processes using the hardware.

[0068] Finally, preferred embodiments of the present invention will be summarized. [First form] (See the evacuation route guidance system from the first perspective above.) [Second Form] The motion analysis means of the above-mentioned evacuation route guidance system can be configured to analyze the motion of moving bodies passing through intersections in the target area based on images taken by the camera, and to analyze the number of moving bodies passing through the intersection based on images taken by the camera. [Third Form] The above-mentioned evacuation route guidance system Analyzing the number of moving objects passing through the intersection based on the image captured by the camera; The route may be created based on the number of moving objects passing through the intersection. [Fourth Form] The above-mentioned evacuation route guidance system A configuration may be adopted in which the route is created by giving priority to a route that has a large number of moving objects passing through the intersection. [Fifth Form] The above-mentioned evacuation route guidance system Calculating a moving speed of a moving object passing through the intersection based on an image captured by the camera; The route may be created based on the moving speed of a moving object passing through the intersection. [Sixth Form] The above-mentioned evacuation route guidance system A configuration may be adopted in which the route is created by giving priority to a route in which the moving speed of a moving object passing through the intersection is high. [7th form] The above-mentioned evacuation route guidance system Analyzing the movement of a moving object passing through the intersection by attribute based on the image captured by the camera; A configuration may be adopted in which routes are created according to the attributes of users of the evacuation route, based on the movement of moving objects according to the attributes of the users. [8th form] The route creation means of the above-mentioned evacuation route guidance system may be configured to create a route by selecting a hazard map corresponding to the disaster that has occurred from a plurality of hazard maps for each type or scale of disaster. [9th form] (See the second point above on how to create evacuation routes.) [10th form] (See the program for the third perspective above) The ninth and tenth embodiments can be expanded into the second to eighth embodiments in the same manner as the first embodiment.

[0069] The disclosures of the above patent documents are incorporated herein by reference and may be used as the basis or part of the present invention as necessary. Within the framework of the entire disclosure of the present invention (including the scope of claims), modifications and adjustments of the embodiments and examples are possible based on the basic technical ideas. Furthermore, within the framework of the disclosure of the present invention, various combinations or selections (including partial deletions) of various disclosed elements (including each element of each claim, each element of each embodiment or example, each element of each drawing, etc.) are possible. In other words, the present invention naturally includes various modifications and corrections that a person skilled in the art would be able to make in accordance with the entire disclosure including the scope of claims and the technical ideas. In particular, with regard to the numerical ranges described in this document, any numerical value or small range included within the range should be interpreted as being specifically described even if not otherwise specified. Furthermore, the disclosures of the above cited documents may be used in part or in whole in combination with the disclosures of this document as part of the disclosure of the present invention in accordance with the spirit of the present invention as necessary, and are deemed to be included in the disclosures of this application. [Explanation of symbols]

[0070] 10. Evacuation route guidance system 11. Movement Analysis Methods 12 Route Creation Methods 13 Route output means 20,200 Camera 100, 100a to 100c Evacuation route guidance server 101, 100a Motion analysis section 102, 102a, 102b Path creation section 103 Evacuation Route Transmission Unit 104, 104c Hazard map storage unit 105 Hazard Map Selection Section 400 terminals 500 traffic lights u User V Broken car 9000 Computers 9010 CPU 9020 Communication Interface 9030 Memory

Claims

1. It is possible to obtain images taken by cameras arranged around roads in a target area and a hazard map including the locations of dangerous places and safe areas in the target area, a movement analysis means for analyzing the movement of moving objects passing through the roads in the target area based on the images captured by the camera when a disaster occurs; a route creation means for creating, among routes that can be used to move to the safe area in the hazard map while avoiding the dangerous points in the hazard map, a route that does not include a section that is impassable due to an abnormal vehicle as a route for vehicles based on a result of the analysis by the movement analysis means, and creating, as a route for pedestrians, a route that includes the section that is impassable due to the abnormal vehicle; a route output means for outputting the route for vehicles or the route for pedestrians on a display device of a terminal held by a user in accordance with an attribute of the user; An evacuation route guidance system equipped with:

2. 2. The evacuation route guidance system according to claim 1, wherein the movement analysis means analyzes the movement of a moving object passing through an intersection in the target area based on the image captured by the camera.

3. The motion analysis means analyzes the number of moving objects passing through the intersection based on the image captured by the camera, 3. The evacuation route guidance system according to claim 2, wherein said route creation means creates said route by giving priority to a road having a large number of moving objects passing through said intersection.

4. The motion analysis means calculates a moving speed of a moving object passing through the intersection based on the image captured by the camera, 4. The evacuation route guidance system according to claim 2, wherein the route creation means creates the route by giving priority to a route along which a moving object passing through the intersection has a high moving speed.

5. the route creation means further generates a direction display element in a manner corresponding to either or both of the number of the moving objects and the moving speed of the moving objects; 5. The evacuation route guidance system according to claim 3, wherein the route output means outputs the direction display element together with the route.

6. The motion analysis means analyzes the motion of a moving object passing through the intersection by each attribute based on the image captured by the camera, 6. The evacuation route guidance system according to claim 2, wherein the route creation means creates routes according to attributes of the users based on the movement of moving objects according to attributes of the users of the routes.

7. The route generation means further generates a direction display element having a different aspect depending on an attribute of the moving object, 7. The evacuation route guidance system according to claim 6, wherein the route output means outputs the direction display element together with the route.

8. 8. The evacuation route guidance system according to claim 1, wherein the route creation means creates a route by selecting a hazard map corresponding to the disaster that has occurred from a plurality of hazard maps for each type or scale of the disaster.

9. A computer capable of acquiring images taken by cameras arranged around roads in a target area and a hazard map including the locations of dangerous points and safe areas in the target area, When a disaster occurs, the movement of moving objects passing through the roads in the target area is analyzed based on the images captured by the camera; among routes that can move to the safe area in the hazard map while avoiding the dangerous points in the hazard map in the target area, a route that does not include a section that is impassable due to an abnormal vehicle is created as a route for vehicles based on a result of the movement analysis, and a route that includes the section that is impassable due to the abnormal vehicle is created as a route for pedestrians; outputting the route for vehicles or the route for pedestrians on a display device of a terminal held by a user in accordance with an attribute of the user; How to create an evacuation route.

10. A computer capable of acquiring images taken by cameras arranged around roads in a target area and a hazard map including positions of dangerous points and positions of safe areas in the target area, A process of analyzing the movement of moving objects passing through roads in the target area based on images captured by the camera when a disaster occurs; a process of creating, based on a result of the movement analysis process, a route that does not include a section that is impassable due to an abnormal vehicle as a route for vehicles, and creating, based on a result of the movement analysis process, a route that can move to the safe area in the hazard map while avoiding the dangerous points in the hazard map in the target area, a route for pedestrians, the route including the section that is impassable due to the abnormal vehicle; outputting the route for vehicles or the route for pedestrians on a display device of a terminal held by a user in accordance with an attribute of the user; A program that executes the following.

Images