Information processing device

Abstract

To obtain an information processing apparatus that can overlook the state of the road to provide an evacuation place according to the situation of disaster.SOLUTION: An information processing apparatus has: a satellite image acquisition unit that acquires position information of the current place of a vehicle 20, and based on the position information, acquires a satellite image of an area around the current place of the vehicle photographed by an artificial satellite 40; a candidate site detection unit that detects a candidate site satisfying an evacuation condition based on the acquired satellite image; and an evacuation place proposal unit that proposes the detected candidate site as an evacuation place.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an information processing device. [Background technology]

[0002] Patent Document 1 discloses a navigation device that, when receiving an emergency broadcast in the event of a disaster, searches for evacuation sites and recommended evacuation routes around the current location and guides the user to the most suitable evacuation site. This navigation device searches for evacuation sites around the current location from those registered in an evacuation site database, and displays evacuation routes to the evacuation sites along with map information. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-051515 Summary of the Invention [Problem to be solved by the invention]

[0004] However, depending on the disaster situation, there may be cases where the pre-registered evacuation site does not function or where it is not possible to move to the evacuation site. Therefore, it is desirable to suggest evacuation sites according to the disaster situation.

[0005] In consideration of the above, the present invention aims to provide an evacuation site that is appropriate for the disaster situation by taking a bird's-eye view of the disaster situation. [Means for solving the problem]

[0006] The information processing device according to the present invention as set forth in claim 1 comprises a satellite image acquisition unit that acquires location information of a current location of a vehicle and acquires satellite images of the area around the current location of the vehicle taken by an artificial satellite based on the location information, a candidate site detection unit that detects candidate sites that satisfy evacuation conditions based on the acquired satellite images, and an evacuation site proposal unit that proposes the detected candidate sites as evacuation sites; The evacuation conditions include confirmation of human activity information at the candidate site, and the confirmation of the human activity information is performed based on the number of people at a predetermined point in the satellite image taken during the day, and based on the number of lights at the predetermined point in the satellite image taken at night..

[0007] The information processing device according to the present invention, as set forth in claim 1, acquires location information of the current location of the vehicle, and acquires satellite images of the area around the current location of the vehicle taken by an artificial satellite based on the location information. Then, based on the acquired satellite images, it detects candidate locations that satisfy evacuation conditions and proposes the detected candidate locations as evacuation sites. This makes it possible to obtain a bird's-eye view of the area around the current location of the vehicle and propose evacuation sites according to the disaster situation in the event of a disaster. In addition, in the event of a disaster, the system can provide an overview of the area around the vehicle's current location and suggest evacuation sites where human activity has been confirmed.

[0008] The information processing device according to the present invention as set forth in claim 2 is configured as set forth in claim 1, wherein the evacuation conditions include a condition that no collapse of buildings has been confirmed in the candidate site.

[0009] In the information processing device according to the present invention as set forth in claim 2, in the event of a disaster, the area around the vehicle's current location can be viewed from a bird's eye view, and locations where no collapsed buildings have been confirmed can be suggested as evacuation sites.

[0012] Claim 3 The information processing device according to the present invention is Claim 1 or Claim 2 In the configuration described above, the evacuation conditions include a condition that the estimated time required for the vehicle to travel from the current location to the candidate location is within a predetermined time.

[0013] Claim 3 In the event of a disaster, the information processing device according to the present invention described above can provide an overview of the area around the vehicle's current location and suggest candidate locations that can be reached within a predetermined time from the vehicle's current location as evacuation sites.

[0014] Claim 4 The information processing device of the present invention described above, in the configuration described in any one of claims 1 to 3, further has a driving ability acquisition unit that acquires information regarding the vehicle's driving ability, and the candidate location detection unit changes the detection range of the candidate location based on the acquired information regarding the driving ability.

[0015] Claim 4The information processing device according to the present invention described in the item (1) can change the detection range of candidate evacuation sites according to the driving capability of the vehicle. This allows the system to propose evacuation sites in the event of a disaster, taking into account the range within which the vehicle can move. [Effects of the Invention]

[0016] As described above, the information processing device according to the present invention can provide an overview of the disaster situation and provide evacuation sites according to the disaster situation. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a diagram showing a schematic configuration of a system constructed by an information processing device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing a hardware configuration of the information processing device. [Figure 3] FIG. 2 is a block diagram illustrating an example of a functional configuration of an information processing device. [Figure 4] 10 is a flowchart showing the flow of evacuation site suggestion processing. DETAILED DESCRIPTION OF THE INVENTION

[0018] The system S according to this embodiment will be described below with reference to Figures 1 to 4. The system S according to this embodiment is a system that takes an overview of the disaster situation and suggests evacuation sites according to the disaster situation.

[0019] 1, a system S includes a server 10, a vehicle 20, a disaster information center 30, and an artificial satellite 40. In the system S, the server 10, the vehicle 20, and the disaster information center 30 are connected via a network N.

[0020] The server 10 is a server computer. The server 10 acquires images (hereinafter also referred to as "satellite images") taken by the artificial satellite 40 from the artificial satellite 40. The satellite images may be images of a ground range of, for example, 0.5 km to 20 km square. The server 10 is an example of an "information processing device."

[0021] The vehicle 20 has an in-vehicle device 50 connected to the server 10 via a network N. Although only one vehicle 20 is shown in FIG. 1, in reality, a plurality of vehicles 20 are connected via the network N.

[0022] The disaster information center 30 is a public institution that distributes disaster information indicating the disaster-affected area, the disaster situation, etc. via a wide-area communication network when a disaster occurs.

[0023] The artificial satellite 40 orbits the Earth in a predetermined cycle and photographs the ground. The number of times the artificial satellite 40 orbits the Earth per day and the orbital altitude of the artificial satellite 40 are arbitrary. Although only one artificial satellite 40 is shown in FIG. 1, it is desirable that the artificial satellite 40 be made up of multiple artificial satellites that can photograph the same point on the ground.

[0024] The following describes the hardware configuration of the server 10. FIG.

[0025] 2, the server 10 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a storage unit 14, an input unit 15, a display unit 16, and a communication unit 17. Each component is connected to each other via a bus 18 so as to be able to communicate with each other.

[0026] The CPU 11 is a central processing unit that executes various programs and controls each part. That is, the CPU 11 reads programs from the ROM 12 or the storage unit 14 and executes the programs using the RAM 13 as a work area. The CPU 11 controls each of the above components and performs various arithmetic processing according to the programs recorded in the ROM 12 or the storage unit 14.

[0027] The ROM 12 stores various programs and various data. The RAM 13 serves as a working area for temporarily storing programs or data.

[0028] The storage unit 14 is configured with a storage device such as a hard disk drive (HDD), a solid state drive (SSD), or a flash memory, and stores various programs and various data. The storage unit 14 stores a program 14A for causing the CPU 11 to execute an output process, which will be described later. The storage unit 14 also stores map information and the like.

[0029] The input unit 15 includes a pointing device such as a mouse, a keyboard, a microphone, a camera, and the like, and is used to perform various inputs.

[0030] The display unit 16 is, for example, a liquid crystal display, and displays various information. The display unit 16 may function as the input unit 15 by adopting a touch panel system.

[0031] The communication unit 17 is an interface for communicating with other devices such as the on-board device 50 of the vehicle 20 and the disaster information center 30. For this communication, for example, a wired communication standard such as Ethernet (registered trademark) or FDDI, or a wireless communication standard such as 4G, 5G, Bluetooth (registered trademark), or Wi-Fi (registered trademark) is used. The communication unit 17 is connected to a network N.

[0032] Next, the functional configuration of the server 10 will be described. Fig. 3 is a block diagram showing an example of the functional configuration of the server 10. The server 10 is configured to include, as functional components, a satellite image acquisition unit 11A, a driving ability acquisition unit 11B, a candidate site detection unit 11C, and an evacuation site suggestion unit 11D. Each functional component is realized by the CPU 11 reading and executing a program 14A stored in the ROM 12 or the storage unit 14.

[0033] The satellite image acquisition unit 11A acquires position information of the current location of the vehicle 20, and acquires satellite images taken by the artificial satellites 40 around the current location of the vehicle 20 based on the position information.

[0034] As an example, when a disaster occurs and the in-vehicle device 50 receives a request from a user for evacuation site guidance, the in-vehicle device 50 transmits location information of the current location of the vehicle 20 to the server 10. The location information of the current location of the vehicle 20 can be identified, for example, based on a signal from a GPS (Global Positioning System) sensor (not shown) mounted on the vehicle 20. The satellite image acquisition unit 11A receives the location information transmitted from the in-vehicle device 50 and acquires a satellite image of the area around the point indicated by the location information. At this time, the satellite image acquisition unit 11A may acquire map information of the area around the vehicle from the storage unit 14 together with the satellite image.

[0035] The driving performance acquisition unit 11B acquires information relating to the driving performance of the vehicle 20.

[0036] As an example, when a disaster occurs and the in-vehicle device 50 receives a request from a user for evacuation site guidance, information regarding the driving capacity of the vehicle 20 is transmitted from the in-vehicle device 50 to the server 10 along with location information of the current location of the vehicle 20. The information regarding the driving capacity of the vehicle 20 is, for example, information regarding the driving range of the vehicle 20 and confirmation information for confirming that the driving functions of the vehicle 20 are functioning normally. The information regarding the driving range may be replaced with information regarding the remaining charge level of the drive battery of the vehicle 20 or the remaining amount of fuel such as gasoline or hydrogen. Furthermore, the confirmation information for confirming that the driving functions of the vehicle are functioning normally is transmitted, for example, based on a signal transmitted from a control ECU (Electronic Control Unit) of a drive actuator mounted on the vehicle 20. For example, when a signal indicating normality is transmitted from the control ECU, confirmation information indicating that the driving functions are normal is transmitted from the in-vehicle device 50 to the server 10. On the other hand, when a signal indicating an abnormality is transmitted from the control ECU, the in-vehicle device 50 does not transmit confirmation information indicating that the driving functions are normal.

[0037] Based on the satellite image acquired by the satellite image acquisition unit 11A, the candidate site detection unit 11C detects candidate sites that satisfy the evacuation conditions from the area around the vehicle 20. The candidate site detection unit 11C analyzes the satellite image to determine the disaster state on the ground and detects candidate sites that satisfy the evacuation conditions.

[0038] Here, the candidate location detection unit 11C changes the detection range of the candidate location based on the information on the driving ability acquired by the driving ability acquisition unit 11B. Specifically, the candidate location detection unit 11C sets the driving range as the detection range based on the driving ability of the vehicle 20. Furthermore, when the vehicle 20 cannot drive, the candidate location detection unit 11C may set the detection range as the range that the user of the vehicle 20 can travel on foot.

[0039] The candidate site may be detected from among a plurality of candidate sites set in advance in the area shown in the satellite image, so that the candidate site satisfies the following evacuation conditions: Alternatively, the candidate site may be determined by extracting parking spots from the area shown in the satellite image by referring to map information or the like, and detecting a spot that satisfies the following evacuation conditions from among the extracted plurality of spots.

[0040] The first condition for evacuation is that no collapsed buildings are confirmed in the candidate site. This first condition is met by using known image analysis technology to eliminate areas where collapsed buildings are confirmed from the area shown in satellite imagery, and then detecting candidate sites from areas where collapsed buildings are not confirmed.

[0041] A second evacuation condition includes confirmation of human activity information at the candidate site. The human activity information is information obtained by analyzing satellite images using known image analysis technology, such as the number of people gathered at a specific location. Alternatively, in nighttime satellite images, it may be the number of electric lights detected at a specific location. The candidate site detection unit 11C recognizes this number, which is an indicator of human activity, as human activity information when it is equal to or greater than a preset threshold value.

[0042] The human activity information is not limited to the above. For example, when a specific symbol indicating rescue operations is detected from an analysis of a satellite image, it may be recognized as human activity information. Furthermore, for example, by receiving location information transmitted from a vehicle waiting at an evacuation site, the server 10 may recognize the presence of a waiting vehicle at a predetermined location as human activity information.

[0043] A third evacuation condition includes that the estimated time required to travel from vehicle 20 to the candidate location is within a predetermined time. This third condition is met by referring to location information of the current location of vehicle 20, location information of the candidate location, and map information to identify a travel route to the candidate location and estimate the estimated time required for travel. Note that the analysis results of satellite images and information received from disaster information center 30 may be taken into consideration when identifying the travel route and estimating the estimated time required for travel. For example, information on impassable roads, traffic congestion, and other traffic information may be obtained based on the analysis results of satellite images and information received from disaster information center 30, and this information may be referred to to identify the travel route and estimate the estimated time required for travel.

[0044] The evacuation site suggestion unit 11D suggests candidate sites detected based on the function of the candidate site detection unit 11C as evacuation sites to the user of the vehicle 20. The evacuation site suggestion unit 11D transmits guidance information related to the detected candidate sites from the server 10 to the vehicle-mounted device 50. The guidance information is output information that can be output from a device mounted on the vehicle 20. For example, the guidance information may be output information that can display a travel route from the current location of the vehicle 20 to the candidate site together with map information on a display unit mounted on the vehicle 20. Furthermore, the guidance information is not limited to this, and may be text information or audio information that provides information about the address of the candidate site.

[0045] The evacuation conditions can be configured by one or a combination of the above first to third conditions, but it is preferable that the second condition be based on the premise that the first condition is met. In candidate sites that meet the first condition, no collapsed buildings have been confirmed, so it is possible to arrive by traveling by vehicle 20. Therefore, by meeting the second condition based on the first condition, it is possible to evacuate without abandoning vehicle 20, and it is possible to prevent being isolated in the disaster area.

[0046] The evacuation conditions may be set according to the type of disaster and the extent of the damage, or may be set by the user in advance as desired.

[0047] 4 is a flowchart showing the flow of the evacuation site suggestion process in which the server 10 suggests evacuation sites to the user. As an example, the server 10 receives disaster information transmitted from the disaster information center 30 and executes the evacuation site suggestion process. This disaster information includes the disaster-affected area, the disaster occurrence situation, etc. The evacuation site suggestion process is executed by the CPU 11 reading the program 14A from the storage unit 14, expanding it into the RAM 13, and executing it.

[0048] As shown in FIG. 4, the CPU 11 receives disaster information from the disaster information center 30 in step S10.

[0049] In step S11, the CPU 11 notifies the vehicles 20 traveling in the disaster-stricken area of ​​disaster information.

[0050] In step S12, the CPU 11 accepts a request from a user requesting guidance to an evacuation site. Specifically, when the in-vehicle device 50 of the vehicle 20 accepts a request from the user requesting guidance to an evacuation site, the request from the user is transmitted from the in-vehicle device 50 to the server 10. At this time, location information of the current location of the vehicle 20 and information on the driving capacity of the vehicle 20 are transmitted to the server 10 together with the request from the user.

[0051] In step S13, the CPU 11 acquires a satellite image of the area around the current location of the vehicle 20.

[0052] In step S14, the CPU 11 detects candidate sites that satisfy the evacuation conditions based on a satellite image of the area around the current location of the vehicle 20. The CPU 11 sets a detection range for candidate sites according to the driving ability of the vehicle 20.

[0053] In step S15, the CPU 11 proposes the detected candidate sites as evacuation sites. Specifically, guidance information for the candidate sites is transmitted from the server 10 to the vehicle-mounted device 50, and the guidance information is output from an output device (not shown) mounted on the vehicle 20.

[0054] (Action and effect) As described above, in the system S according to the embodiment, the server 10 acquires location information of the current location of the vehicle 20 during a disaster, and acquires satellite images of the area around the current location of the vehicle 20 taken by the artificial satellite 40 based on the location information. Then, based on the acquired satellite images, it detects candidate sites that satisfy evacuation conditions and proposes the detected candidate sites as evacuation sites. This makes it possible to obtain a bird's-eye view of the area around the current location of the vehicle 20 during a disaster and propose evacuation sites according to the disaster situation.

[0055] Here, by setting the evacuation condition that no collapsed buildings have been confirmed at the candidate site, in the event of a disaster, it is possible to take a bird's-eye view of the area around the vehicle's current location and suggest locations where no collapsed buildings have been confirmed as evacuation sites.

[0056] Furthermore, by making it an evacuation condition that human activity information has been confirmed at the candidate location, it is possible to suggest locations where human activity has been confirmed as evacuation locations in the event of a disaster, thereby preventing the user of vehicle 20 from becoming isolated in the disaster area.

[0057] In addition, by setting the evacuation condition that the estimated time required for the vehicle 20 to travel from its current location to the candidate location is within a predetermined time, candidate locations that can be reached within a predetermined time from the vehicle's current location can be proposed as evacuation locations.

[0058] In addition, in this embodiment, information about the driving capacity of the vehicle 20 is acquired, and the detection range of the candidate site is changed based on the information about the driving capacity. This makes it possible to propose evacuation sites in the event of a disaster, taking into account the range within which the vehicle can move.

[0059] [supplementary explanation] In the above embodiment, the user's request for evacuation site suggestions is transmitted to the server 10 by the in-vehicle device 50, but this is not limiting, and the request may be transmitted to the server 10 from a user terminal such as a personal computer or a smartphone. In this case, evacuation site guidance information output by the server 10 may be transmitted to the user terminal. Furthermore, the in-vehicle device 50 is not limited to a device pre-installed in the vehicle 20, and may be a user terminal such as a personal computer or a smartphone connectable to the vehicle 20.

[0060] In the above embodiment, the case where the information processing device of the present invention is configured as the server 10 has been described, but the present invention is not limited to this, and the information processing device may be configured as the vehicle-mounted device 50.

[0061] Furthermore, the evacuation site suggestion process executed by the CPU 11 after reading the software (program) in the above embodiment may be executed by various processors other than a CPU. Examples of processors in this case include PLDs, such as FPGAs, whose circuit configuration can be changed after manufacture, and dedicated electrical circuits, such as ASICs, which are processors with circuit configurations specifically designed to execute specific processes. The provision process may be executed by one of these various processors, or by a combination of two or more processors of the same or different types (e.g., multiple FPGAs, or a combination of a CPU and an FPGA). The hardware structure of these various processors is, more specifically, an electrical circuit that combines circuit elements such as semiconductor devices.

[0062] Although the program 14A has been described as being pre-stored (installed) in the storage unit 14, the present invention is not limited to this. The program 14A may be provided in a form recorded on a non-transitory recording medium such as a CD (Compact Disk), a DVD (Digital Versatile Disk), or a USB (Universal Serial Bus) memory. The program 14A may also be downloaded from an external device via the network N. [Explanation of symbols]

[0063] 10 Server (information processing device) 11A Satellite image acquisition section 11B Driving Ability Acquisition Unit 11C Candidate site detection section 11D Evacuation Site Suggestion Section 20 vehicles 40 satellite

Claims

1. a satellite image acquisition unit that acquires location information of a current location of the vehicle and acquires, based on the location information, a satellite image of the area around the current location of the vehicle taken by an artificial satellite; a candidate site detection unit that detects candidate sites that satisfy evacuation conditions based on the acquired satellite images; an evacuation site suggestion unit that suggests the detected candidate site as an evacuation site; The evacuation conditions include that information on human activity has been confirmed in the candidate site, The confirmation of the person's activity information includes: based on the number of people at a given point in the satellite imagery taken during the day; In the satellite image taken at night, this is performed based on the number of lights at the predetermined point. Information processing device.

2. The evacuation conditions include that no building collapses have been confirmed in the candidate site. The information processing device according to claim 1 .

3. The evacuation conditions include a condition that a planned time required for the vehicle to travel from the current location to the candidate location is within a predetermined time.

3. The information processing device according to claim 1.

4. The vehicle further includes a driving capability acquisition unit that acquires information about the vehicle's driving capability, the candidate location detection unit changes the detection range of the candidate location based on the acquired information on the driving ability.

4. The information processing device according to claim 1.

Images