On-vehicle device and program

Abstract

To provide a technology for appropriately presenting a shelter to passersby moving around vehicles.SOLUTION: An on-vehicle device comprises: a memory unit that stores map information including the locations of a shelter; a disaster detection unit 102 that detects the occurrence of a disaster; an acquisition unit 101 that acquires the location of a vehicle 1; a generation unit 104 that generates passersby guidance information for guiding passersby to the shelter based on the location of the vehicle 1 and the map information; and an output unit 105 that outputs the passersby guidance information when occupants of the vehicle get off the vehicle after the disaster detection unit 102 detects the occurrence of a disaster.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an in-vehicle device and a program. [Background technology]

[0002] For example, Patent Document 1 discloses a technology that, when an emergency broadcast is received, searches for evacuation shelters and recommended evacuation routes around the current location, and provides guidance on the most suitable evacuation shelter and the most suitable route from the current location to that shelter. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-203039 Summary of the Invention [Problem to be solved by the invention]

[0004] In the event of a major disaster such as a large-scale earthquake, tsunami, flood, landslide, or eruption, it is expected that travel by vehicle will be difficult and people will have to evacuate to evacuation shelters on foot. In such cases, it is necessary to appropriately urge passersby around the vehicle to evacuate.

[0005] In view of the above, an object of the present disclosure is to provide a technology that appropriately presents evacuation shelters to passersby moving around a vehicle. [Means for solving the problem]

[0006] An in-vehicle device according to one aspect of the present disclosure includes a memory unit that stores map information including the locations of evacuation shelters, a disaster detection unit that detects the occurrence of a disaster, an acquisition unit that acquires the location of the vehicle, a generation unit that generates passerby guidance information for guiding passersby to the evacuation shelter based on the acquired location of the vehicle and the map information, and an output unit that outputs the passerby guidance information when an occupant of the vehicle disembarks after the disaster detection unit detects the occurrence of the disaster.

[0007] Another aspect of the program of the present disclosure causes a computer to perform the following operations: detect the occurrence of a disaster; acquire the position of the vehicle; read map information including the positions of evacuation shelters from a memory unit storing the map information; generate passerby guidance information for guiding passersby to the evacuation shelters based on the acquired position of the vehicle and the read map information; and output the passerby guidance information if an occupant of the vehicle disembarks after the occurrence of the disaster is detected.

[0008] Any combination of the above components, and conversion of the present disclosure into a method, device, system, recording medium, computer program, etc., are also valid aspects of the present disclosure. [Effects of the Invention]

[0009] According to an aspect of the present disclosure, it is possible to provide a technology that appropriately presents evacuation shelters to passersby moving around a vehicle. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a block diagram showing the configuration of a vehicle according to a first embodiment. [Figure 2] FIG. 2 is a functional block diagram of a processing unit according to the first embodiment. [Figure 3] 4 is a flowchart showing a process executed by the navigation device in the first embodiment. [Figure 4] FIG. 10 is a diagram illustrating an example of an occupant guide screen. [Figure 5] FIG. 10 is a diagram illustrating an example of a first passerby guide screen. [Figure 6] FIG. 10 is a functional block diagram of a processing unit according to a second embodiment. [Figure 7] 10 is a flowchart showing a process executed by a navigation device in a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Specific numerical values and the like shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present disclosure unless otherwise specified. Elements not directly related to the present disclosure are omitted from the drawings.

[0012] First embodiment FIG. 1 is a block diagram showing the configuration of a vehicle 1 according to the first embodiment. The vehicle 1, which is the vehicle itself, includes a navigation device 30. The navigation device 30 of this embodiment is a car navigation device. The navigation device 30 includes a communication unit 31, a processing unit 32, and a storage unit 33. The navigation device 30 may be a device that is installed in the vehicle, or may be a portable device that can be used in the vehicle. Furthermore, the navigation device 30 may be realized by including the functions or configuration of a device that is installed in the vehicle 1 in advance. The navigation device 30 of this embodiment is an example of an in-vehicle device.

[0013] The communication unit 31 controls communication with other devices. The communication unit 31 communicates using any wireless communication method. For example, the communication unit 31 communicates with a server of the nationwide instantaneous warning system (J-Alert) via the Internet.

[0014] The storage unit 33 stores programs, data, etc. used by the processing unit 32. The storage unit 33 may be a semiconductor memory, a hard disk, etc. The storage unit 33 of this embodiment stores map data MP including the locations of evacuation shelters.

[0015] The processing unit 32 is, for example, a calculation processing unit. FIG. 2 is a functional block diagram of the processing unit 32 according to the first embodiment. As shown in FIG. 2, the processing unit 32 according to the first embodiment includes an acquisition unit 101, a disaster detection unit 102, a determination unit 103, a generation unit 104, and an output unit 105. The components shown in FIG. 2 and FIG. 6 (described later) are implemented in hardware by a CPU, memory, or other LSI of a computer, and in software by a program loaded into memory. However, the functional blocks shown here are implemented by the cooperation of these components. Therefore, those skilled in the art will understand that these functional blocks can be implemented in various ways, such as by hardware alone or a combination of hardware and software.

[0016] The acquisition unit 101 acquires the position of the vehicle 1. For example, the acquisition unit 101 acquires the position of the vehicle by calculating the position of the vehicle using a known method based on radio waves received by a GPS device (not shown) mounted on the vehicle 1 from a GPS satellite (not shown).

[0017] The disaster detection unit 102 detects the occurrence of a disaster. For example, the disaster detection unit 102 detects the occurrence of a disaster when it receives disaster information (such as an earthquake early warning and a tsunami warning) distributed from, for example, a nationwide instantaneous warning system via the communication unit 31. The disaster information is not limited to an earthquake early warning and a tsunami warning, but may also be disaster prevention information announced or provided by the national government, local governments, etc. Types of disasters may include, in addition to earthquakes and tsunamis, landslides, river flooding, floods, fires, typhoons, volcanic eruptions, ballistic missile launches or impacts, armed conflicts, etc. The occurrence of a disaster here includes not only a state in which a disaster has actually occurred, but also a state in which a disaster is imminent.

[0018] The determination unit 103 determines whether or not an occupant of the vehicle 1 has disembarked. For example, the determination unit 103 determines that an occupant of the vehicle 1 has disembarked when the accessory power supply of the vehicle 1 is off, when the door of the vehicle 1 is opened or closed, when an alighting switch (not shown) provided in the navigation device 30 is operated, when a seating sensor provided in a seat of the vehicle 1 indicates that the occupant is not seated, etc. The occupant of the vehicle 1 here refers to, for example, a person who is in the vehicle 1 when the occurrence of a disaster is detected.

[0019] The generation unit 104 generates occupant guidance information for guiding the occupants of the vehicle 1 to an evacuation shelter and passerby guidance information for guiding passersby to an evacuation shelter based on the position of the vehicle 1 and the map information MP. For example, the generation unit 104 generates occupant guidance information in response to the detection of the occurrence of a disaster. Furthermore, for example, the generation unit 104 generates passerby guidance information when the occupants of the vehicle 1 get off after the detection of the occurrence of a disaster. Passersby here refer to people passing around the vehicle 1. The occupant guidance information and passerby guidance information will be described later.

[0020] The output unit 105 outputs occupant guidance information from the time when the occurrence of a disaster is detected until the occupant of the vehicle 1 disembarks. In addition, the output unit 105 outputs passerby guidance information when the occupant of the vehicle 1 disembarks after the occurrence of a disaster is detected. For example, the output unit 105 outputs the occupant guidance information or the passerby guidance information to display an occupant guidance screen D1 or a first passerby guidance screen D2, which will be described later, via a display (not shown) of the navigation device 30.

[0021] FIG. 3 is a flowchart showing the process S100 executed by the navigation device 30 in the first embodiment.

[0022] In step S101, the disaster detection unit 102 determines whether or not a disaster has occurred. If a disaster has not been detected (N in step S101), the process S100 returns to step S101. If a disaster has been detected (Y in step S101), the process S100 proceeds to step S102.

[0023] In step S102, the acquisition unit 101 acquires the position of the vehicle 1.

[0024] In step S103, the generation unit 104 generates occupant guidance information based on the position of the vehicle 1 and the map information MP. For example, the generation unit 104 generates the occupant guidance information based on the position acquired by the acquisition unit 101 in step S102 and the map information MP read from the storage unit 33.

[0025] In step S104, the output unit 105 outputs the occupant guidance information. For example, the output unit 105 outputs the occupant guidance information by displaying an occupant guidance screen D1 on the display. FIG. 4 illustrates the occupant guidance screen D1. The occupant guidance screen D1 displays a shelter display portion 75, a route display portion 80A, a route R1, a distance display portion 85, and evacuation messages M1 and M2. The shelter display portion 75 indicates that the nearest shelter 90 is Central Park. The route display portion 80A displays a map of the area around the vehicle 1 and also displays a route R1 on the map. The route R1 indicates a detailed route from the vehicle 1 to Central Park, which is the nearest shelter 90. In the example of FIG. 4, the route R1 includes a first route A1 indicating the first route to take toward the shelter and a second route A2 indicating the next route to take. The distance display portion 85 indicates that the distance to travel from the vehicle 1 on the first route A1 is 240 meters. The evacuation message M1 indicates a message guiding the driver to the nearest evacuation shelter, saying, "The route to the nearest evacuation shelter is as shown in the diagram above." The evacuation message M2 indicates a message encouraging the driver to evacuate, saying, "Please evacuate to the nearest evacuation shelter on foot." Furthermore, for example, by touching the end point of the first route A1 or the start point of the second route A2 on the occupant guidance screen D1, the output unit 105 may display a screen showing detailed information, such as an enlarged view of the location where the direction of travel changes from the first route A1 to the second route A2.

[0026] In step S105, the determination unit 103 determines whether or not the occupant of the vehicle 1 has dismounted. If the occupant has not dismounted (N in step S105), the process S100 returns to step S102, and steps S102 to S105 are repeatedly executed until the occupant dismounts. If the occupant has dismounted (Y in step S105), the process S100 proceeds to step S106.

[0027] In step S106, the acquisition unit 101 acquires new location information of the vehicle 1.

[0028] In step S107, the generation unit 104 generates passerby guidance information. For example, the generation unit 104 generates the occupant guidance information based on the new position acquired by the acquisition unit 101 in step S106 and the map information MP read from the storage unit 33. The passerby guidance information in this embodiment is information that indicates the route to the evacuation shelter more simply than the occupant guidance information.

[0029] In step S108, the output unit 105 ends the output of the occupant guidance information and outputs the passerby guidance information. For example, the output unit 105 outputs the passerby guidance information by displaying a first passerby guidance screen D2 on the display. FIG. 5 illustrates the first passerby guidance screen D2. The first passerby guidance screen D2 displays a shelter indication portion 75, a traveling direction indication portion 80B, a disaster indication portion 95, and evacuation messages M2 and M3. The traveling direction indication portion 80B indicates the traveling direction A3 that a passerby should follow to arrive at the shelter. The disaster indication portion 95 indicates the time until the next imminent disaster occurs. The evacuation message M3 displays a message guiding the user to the shelter, saying, "Please proceed straight along the road in the direction of the arrow and evacuate to the nearest shelter." The first passerby guidance screen D2 simply displays the current disaster situation and the direction to go first using the direction of travel display section 80B, disaster display section 95, and evacuation messages M2 and M3, allowing passersby to easily understand the current disaster situation and the direction to go first.

[0030] In step S109, the determination unit 103 determines whether a predetermined termination condition is met. For example, the determination unit 103 determines that the predetermined termination condition is met when an alarm related to a disaster that has occurred is canceled, when an end switch (not shown) of the navigation device 30 is operated, or when the remaining charge of the battery of the vehicle 1 falls below a predetermined reference value. If the predetermined termination condition is not met (N in step S109), the process S100 returns to step S109. If the predetermined termination condition is met (Y in step S109), the process S100 proceeds to step S110.

[0031] In step S110, the output unit 105 ends output of the pedestrian guidance information. In this way, even if the occupants have exited the vehicle 1 and, for example, the engine is stopped, route guidance to the evacuation shelter and warnings continue to be displayed until a predetermined termination condition is met. This allows pedestrians traveling on foot to be guided safely to the evacuation shelter. After step S110, the process S100 ends.

[0032] In the first embodiment, the navigation device 30 (on-board device) includes a storage unit 33 storing map information including the locations of evacuation shelters, a disaster detection unit 102 detecting the occurrence of a disaster, an acquisition unit 101 acquiring the location of the vehicle, a generation unit 104 generating passerby guidance information for guiding passersby to evacuation shelters based on the acquired location and map information of the vehicle when an occupant of the vehicle disembarks after the disaster detection unit 102 detects the occurrence of a disaster, and an output unit 105 outputting the passerby guidance information. This configuration makes it possible to provide a technology for appropriately displaying evacuation shelters to passersby moving around the vehicle 1 where the occupant has disembarked. Furthermore, this configuration allows evacuation guidance to be completed by the operation of the navigation device 30 based on reception of location information from GPS satellites and emergency broadcasts, etc., making it possible to provide evacuation guidance even during a power outage or when the wireless network is disconnected during a disaster.

[0033] In the first embodiment, the generation unit 104 generates occupant guidance information for guiding occupants to an evacuation shelter based on the position and map information of the vehicle, and the output unit 105 outputs the occupant guidance information from after the disaster detection unit 102 detects the occurrence of a disaster until the occupants of the vehicle disembark. The passerby guidance information is information that shows a route to the evacuation shelter in a simpler manner than the occupant guidance information. According to this configuration, the route to the evacuation shelter is simply shown, allowing passersby to easily understand the route they should take first, thereby enabling rapid evacuation. Furthermore, by installing the navigation device 30 of the present disclosure in as many vehicles as possible, passersby can easily reach the evacuation shelter by following the route simply shown by the navigation devices 30 installed in multiple vehicles 1.

[0034] Second embodiment A second embodiment of the present disclosure will be described below. In the drawings and description of the second embodiment, components that are the same as or equivalent to those in the first embodiment will be given the same reference numerals. Explanations that overlap with the first embodiment will be omitted as appropriate, and the description will focus on configurations that differ from the first embodiment.

[0035] 6 is a functional block diagram of the processing unit 32 of the second embodiment. The processing unit 32 of the second embodiment further includes a vehicle equipment control unit 106. When an occupant of the vehicle 1 dismounts after a disaster occurs, the vehicle equipment control unit 106 controls specific devices of the vehicle 1 that have a lower relationship with the running of the vehicle 1 than a predetermined standard. Here, the specific devices of the vehicle 1 that have a lower relationship with the running of the vehicle 1 than a predetermined standard are, for example, devices that do not generate driving force for running the vehicle 1, such as power windows, automatic door opening / closing mechanisms, headlights, turn signals, a horn, a speaker, a display, and a door lock device.

[0036] Fig. 7 is a flowchart showing the process S200 executed by the navigation device 30 in the second embodiment. Steps S201 to S208 and S210 in Fig. 7 are the same as steps S101 to S109 in Fig. 3, and therefore a description thereof will be omitted.

[0037] In step S209, the vehicle equipment control unit 106 controls specific devices of the vehicle 1. For example, the vehicle equipment control unit 106 drives a power window to open a window of the vehicle 1 so that the display of the navigation device 30 can be easily seen from outside the vehicle. For example, the vehicle equipment control unit 106 drives an automatic door opening / closing mechanism to open a door of the vehicle 1 so that the display of the navigation device 30 can be easily seen from outside the vehicle. For example, the vehicle equipment control unit 106 keeps the headlights on to indicate that the navigation device 30 is providing evacuation guidance and to provide illumination during evacuation. For example, the vehicle equipment control unit 106 periodically activates the turn signals and horn to indicate that the navigation device 30 is providing evacuation guidance. For example, the vehicle equipment control unit 106 uses a speaker of the navigation device 30 to audibly notify the user that guidance to an evacuation location is being provided. For example, if the vehicle 1 is equipped with a display capable of displaying information facing the outside of the vehicle, the vehicle equipment control unit 106 displays on the display that guidance to an evacuation shelter is being provided. For example, the vehicle equipment control unit 106 controls the door lock device of the vehicle 1 so that the doors of the vehicle 1 do not lock when the horn is sounded at a predetermined time interval, in order to make it easier for passersby to check the screen of the navigation device 30.

[0038] In step S211, the output unit 105 ends the output of the pedestrian guidance information and the control of the specific device of the vehicle 1. After step S211, the process S200 ends.

[0039] Here, the navigation device 30 is installed inside the vehicle. Therefore, it is difficult for passersby to check the screen of the navigation device 30 from outside the vehicle 1, and there is a risk that passersby will pass by the vehicle 1 without noticing the evacuation guidance provided by the navigation device 30. In contrast, in the second embodiment, the navigation device 30 further includes a vehicle equipment control unit 106 that controls specific equipment of the vehicle 1 that has a lower relationship with the traveling of the vehicle than a predetermined standard when an occupant of the vehicle disembarks after the disaster detection unit 102 detects the occurrence of a disaster. With this configuration, passersby can easily notice the evacuation guidance provided by the navigation device 30, thereby increasing the likelihood that passersby will be able to evacuate appropriately.

[0040] Modifications of the embodiment will be described below.

[0041] The passerby guidance information includes first passerby guidance information for displaying on the display a first passerby guidance screen D2 that shows a route to the evacuation shelter in a simplified manner. The generation unit 104 generates second passerby guidance information for displaying on the display a second passerby guidance screen that shows a route to the evacuation shelter in more detail than the first passerby guidance screen D2. When an occupant of the host vehicle disembarks after the disaster detection unit 102 detects the occurrence of a disaster, the output unit 105 may further output the second passerby guidance information, thereby alternately displaying on the display of the navigation device 30 the first passerby guidance screen D2 that shows a route to the evacuation shelter in a simplified manner and the second passerby guidance screen that shows a route to the evacuation shelter in detail. For example, the second passerby guidance screen has the same content as the occupant guidance screen D1. The output unit 105 may alternately display the first passerby guidance screen D2 and the second passerby guidance screen (occupant guidance screen D1) on the display at a predetermined time interval (for example, every 5 seconds). According to this configuration, passersby can easily check the route on the first passerby guidance screen D2, and then check the route in detail on the second passerby guidance screen if necessary, which allows for more appropriate evacuation. Note that the second passerby guidance screen is not limited to a screen with the same content as the occupant guidance screen D1, but may be a screen different from the occupant guidance screen D1 that shows the route to the evacuation shelter in more detail than the occupant guidance screen D1.

[0042] For example, if there is a dangerous area around the vehicle 1, such as a crack in the road, a collapsed building, or a river flooding, or if there is a high possibility that a dangerous area will occur, the generation unit 104 may generate passenger guidance information and passerby guidance information urging the vehicle to move away from the dangerous area or not to continue on.

[0043] For example, the output unit 105 may output the occupant guidance information and the passerby guidance information by voice via a speaker (not shown) of the navigation device 30. For example, the output unit may output the occupant guidance information by voice, such as "Go straight on this road for 100 meters, then turn right and go 50 meters to the evacuation shelter," and may output the passerby guidance information by voice, such as "Go straight on this road to the evacuation shelter."

[0044] For example, the generation unit 104 may change the method of guidance from vehicle 1 to the evacuation shelter in the occupant guidance information and the passerby guidance information depending on the distance from the position of vehicle 1 to the evacuation shelter. For example, if the distance from vehicle 1 to the evacuation shelter is shorter than a predetermined standard, the generation unit 104 may present a detailed route to the evacuation shelter in the occupant guidance information and the passerby guidance information. For example, if the distance from vehicle 1 to the evacuation shelter is shorter than 100 meters, the generation unit 104 may present a detailed route such as "Turn right at the next traffic light and take the side road on the left" in the occupant guidance information and the passerby guidance information.

[0045] In the embodiment, the occupant guidance information and passerby guidance information show the route to the nearest evacuation shelter, but this is not limited to this, and several routes to candidate evacuation shelters in the vicinity of vehicle 1 may also be presented.

[0046] The frame display 70 on the first pedestrian guidance screen D2 may flash repeatedly. This makes it stand out so that it can be seen by pedestrians outside the vehicle. Note that the frame display 70 is not limited to flashing, and for example, the color of the frame display 70 may change sequentially (e.g., red, blue, green).

[0047] The navigation device 30 may be configured to accept only zooming in / out operations and scrolling operations of the traveling direction display portion 80B by passersby, and not accept other operations, so as to prevent the user from switching to a screen other than the currently displayed screen. This is because the navigation device 30 of this embodiment is intended for an unspecified number of people, and therefore does not accept unnecessary operations to ensure the provision of information.

[0048] The present disclosure has been described above with reference to the above-mentioned embodiments, but the present disclosure is not limited to the above-mentioned embodiments, and appropriate combinations or substitutions of the configurations shown in the embodiments are also included in the present disclosure. [Explanation of symbols]

[0049] 1...vehicle, 30...navigation device, 31...communication unit, 32...processing unit, 33...storage unit, 101...acquisition unit, 102...disaster detection unit, 103...judgment unit, 104...generation unit, 105...output unit, 106...vehicle equipment control unit.

Claims

1. a memory unit that stores map information including the location of evacuation shelters; a disaster detection unit that detects the occurrence of a disaster; an acquisition unit that acquires the position of the vehicle; a generating unit that generates passerby guidance information for guiding passersby to the evacuation shelter based on the acquired position of the vehicle and the map information; an output unit that outputs the pedestrian guidance information when an occupant of the vehicle gets off after the disaster detection unit detects the occurrence of the disaster; An in-vehicle device comprising:

2. the generation unit generates occupant guidance information for guiding the occupant to the evacuation shelter based on the position of the host vehicle and the map information; the output unit outputs the occupant guidance information from after the disaster detection unit detects the occurrence of the disaster until an occupant of the host vehicle gets off, The passerby guidance information is information for indicating the route to the evacuation shelter more simply than the occupant guidance information. The in-vehicle device according to claim 1 .

3. the passerby guidance information includes first passerby guidance information for displaying a first passerby guidance screen on a display that simply shows a route to the evacuation shelter, the generation unit generates second passerby guidance information for displaying, on the display, a second passerby guidance screen that shows a route to the evacuation shelter in more detail than the first passerby guidance screen; When an occupant of the host vehicle gets off after the disaster detection unit detects the occurrence of the disaster, the output unit further outputs the second pedestrian guidance information, thereby alternately displaying the first pedestrian guidance screen and the second pedestrian guidance screen on the display. The in-vehicle device according to claim 1 .

4. a vehicle equipment control unit that controls a specific device of the host vehicle that has a relationship with the traveling of the host vehicle lower than a predetermined standard when an occupant of the host vehicle gets off after the disaster detection unit detects the occurrence of the disaster; The in-vehicle device according to any one of claims 1 to 3.

5. On the computer, Detecting the occurrence of a disaster; Obtaining the position of the vehicle; reading out map information including the location of an evacuation shelter from a storage unit that stores the map information; generating passerby guidance information for guiding passersby to the evacuation shelter based on the acquired position of the vehicle and the read map information; outputting the pedestrian guidance information when an occupant of the vehicle gets off after detecting the occurrence of the disaster; A program that executes the following.

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