JP2015021776A - Navigation apparatus and method - Google Patents

Abstract

The present invention provides a navigation apparatus and method capable of automatically setting a route to an evacuation site far from an epicenter and guiding a user when an earthquake occurs. A navigation apparatus for performing a route search from a current location of a vehicle to a destination based on the current location of the vehicle and map data, an earthquake information acquisition unit for acquiring earthquake information when an earthquake occurs, and a vehicle Based on the current location, map data, and earthquake information, it is determined whether or not the vehicle needs to be evacuated. It is equipped with the calculation unit 14 that sets up the route to start guidance and automatically guides the route to the evacuation site far from the epicenter when an earthquake occurs. Even users (drivers) who have no intuition can move quickly and ensure safety. [Selection] Figure 1

Description

  The present invention relates to a navigation apparatus and method for performing route guidance to a destination.

  In general, a navigation device mounted on a vehicle such as an automobile performs a route search to a set destination based on the vehicle position and map data, and displays or sounds to a user such as a driver. Provide route guidance.

  When a disaster such as an earthquake occurs while driving a vehicle equipped with such a navigation device, disaster information is received and disaster related facilities such as hospitals, convenience stores, evacuation sites are displayed on the map. A navigation device is known (see, for example, Patent Document 1).

JP 2007-322307 A

  However, in a conventional navigation device such as Patent Document 1, for example, if the user selects one of the disaster-related facilities displayed on the map and does not perform route setting, route guidance to those facilities is performed. Since it is not performed, a user operation is required in an emergency, and there is a problem that guidance to a disaster-related facility cannot be performed efficiently.

  In addition, when an earthquake occurs, the location of the epicenter, own vehicle position, and disaster-related facilities is not taken into account, so the user can select a disaster-related facility displayed on the map and provide route guidance to that facility. Even if it was carried out, there was a problem that it was not known whether the facility was a safe place to evacuate away from the epicenter.

  The present invention has been made in order to solve the above-described problems, and a navigation apparatus and method capable of guiding a user by automatically setting a route to an evacuation site far from the epicenter when an earthquake occurs. The purpose is to provide.

  In order to achieve the above object, the present invention provides a navigation apparatus that carries in or is installed in a vehicle that searches a route from the current location of the vehicle to the destination based on the current location of the vehicle and map data. Whether or not the vehicle needs to evacuate based on the earthquake information acquisition unit that acquires earthquake information, the current location of the vehicle, the map data, and the earthquake information acquired by the earthquake information acquisition unit. And when it is determined that it is necessary to evacuate, an arithmetic unit that searches for an evacuation site around the vehicle, sets a route to the evacuation site, and starts guidance, and the arithmetic unit evacuates A display control unit for displaying a route to the evacuation site set by the calculation unit together with the epicenter of the earthquake on a display unit when it is determined that it is necessary to And features.

  According to the present invention, when an earthquake occurs, a route is automatically set and guided (guided) to an evacuation site far from the epicenter, so even a user (driver) who does not understand the land moves quickly. To ensure safety.

1 is a block diagram showing a configuration of a navigation device in Embodiment 1. FIG. 3 is a flowchart showing the operation of the navigation device in the first embodiment. It is an example of a screen showing a state in which an epicenter is displayed when an earthquake occurs. It is explanatory drawing which shows calculating the distance of the refuge and the epicenter while searching for the refuge around the position of the own vehicle when an earthquake occurs. It is a figure which shows an example of the navigation screen displayed on a display part, when the route guidance to a refuge is automatically started when an earthquake occurs. It is an example of a screen showing a state where an epicenter is displayed when an earthquake occurs while the vehicle is traveling along the coast. It is explanatory drawing which shows that the distance of the refuge and the epicenter is calculated while searching for the refuge around the position of the own vehicle when an earthquake occurs while the vehicle is traveling along the coast. It is a figure which shows an example of the navigation screen displayed on a display part, when the route guidance to an evacuation center is automatically started when an earthquake generate | occur | produces while the own vehicle drive | works along a coast. 6 is a block diagram illustrating a configuration of a navigation device in Embodiment 2. FIG. 10 is a flowchart showing the operation of the navigation device in the second embodiment. An example of the content of an email sent by Bluetooth (registered trademark; hereinafter omitted) communication when a navigation screen as shown in FIG. 5 is displayed on the display unit and route guidance to the evacuation center is started. FIG. It is a figure which shows an example of the content of the mail transmitted by Bluetooth communication when the navigation screen as shown in FIG. 8 is displayed on a display part, and the route guidance to an evacuation center is started. FIG. 10 is a diagram showing an outline of a navigation system in a third embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a navigation device according to Embodiment 1 of the present invention. The navigation device 10 includes an earthquake information acquisition unit 11, a vehicle position detection unit 12, a map data acquisition unit 13, a calculation unit 14, and a display control unit 15. The navigation device 10 is installed and used in a vehicle such as an automobile and is usually used to search for a route from the current location of the vehicle to the destination based on the current location of the vehicle and map data. is there.

  Although not shown in the figure, an input unit that receives manual input from the user and an audio output unit that outputs audio through a speaker or the like are also provided. As for the input unit, any form of hardware switch, key, button provided in the navigation device, a touch sensor integrated with the display unit 5 to be described later, or a remote control installed on the steering wheel of the vehicle, etc. It may be a thing.

  When an earthquake occurs, the earthquake information acquisition unit 11 receives a radio tuner / VICS (Vehicle Information and Communication System) tuner 1 from radio waves such as radio / VICS (registered trademark; hereinafter omitted) / terrestrial digital broadcasting. And emergency earthquake information received by the digital terrestrial television tuner 2 or the like.

The own vehicle position detection unit 12 detects the current position of the own vehicle using, for example, a GPS (Global Positioning System) receiver 3 or the like.
The map data acquisition unit 13 acquires map data from the map data storage unit 4 that stores map data. Note that map data may be acquired by communicating with a server via a communication unit (not shown) that can be connected to a network.

  The calculation unit 14 performs a route search to the destination set by the user based on the vehicle position detected by the vehicle position detection unit 12 and the map data acquired by the map data acquisition unit 13. Provide route guidance. In addition, the display control unit 15 is instructed to display map data, route guidance results, and the like, and the speaker is instructed to perform voice guidance.

  Further, when the earthquake information acquisition unit 11 acquires the earthquake information, the calculation unit 14 determines whether or not the own vehicle needs to evacuate or calculates the distance between the own vehicle position and the epicenter. If it is determined that it is necessary to evacuate, search for evacuation centers around the vehicle and calculate the distance between the epicenter and the evacuation site, or automatically set the route to the evacuation site. Start route guidance.

  The display control unit 15 receives an instruction from the calculation unit 14 on the display unit 5 such as an LCD (Liquid Crystal Display) or an organic EL display, and presents information (map data, route guidance result, etc.) to the user. Display control to make it happen. The display unit 5 is a display-integrated touch panel, and may be composed of, for example, an LCD and a touch sensor.

FIG. 2 is a flowchart showing the operation of the navigation device according to the first embodiment.
First, has the earthquake information acquisition unit 11 acquired earthquake information from radio reception or VICS reception received by the radio tuner / VICS tuner 1 or acquired earthquake information from terrestrial digital broadcast reception received by the terrestrial digital TV tuner 2? Is determined (steps ST1 to ST3).

  When earthquake information is acquired from radio reception (in the case of YES in step ST1), the calculation unit 14 determines whether the acquired earthquake information is information that matches a condition to be evacuated (step ST4). Whether the information matches the conditions to be evacuated is, for example, whether the seismic intensity of the earthquake that has occurred is equal to or greater than a predetermined seismic intensity, or whether it matches a preset condition such as whether an evacuation alarm is included Judgment by Here, the condition is that the seismic intensity is 5 or more or an evacuation warning is included.

  If earthquake information has not been acquired from radio reception (NO in step ST1), it is checked whether earthquake information has been acquired from VICS reception (step ST2). If acquired (YES in step ST2) Step ST4 is performed.

  If earthquake information has not been acquired from VICS reception (in the case of NO in step ST2), it is further checked whether earthquake information has been acquired from terrestrial digital broadcast reception (step ST3). In the case of YES in ST3, the process of step ST4 is performed. In addition, when earthquake information is not acquired also from terrestrial digital broadcast reception (in the case of NO of step ST3), it returns to step ST1 and repeats a process.

  If it is determined in step ST4 that the acquired earthquake information matches the conditions to be evacuated (in the case of YES in step ST4), the distance between the vehicle position (current location) and the epicenter is calculated ( Step ST5). The epicenter information is included in the earthquake information acquired in steps ST1 to ST3.

  If the distance is within the predetermined distance (YES in step ST6), the calculation unit 14 determines that evacuation is necessary, notifies the display control unit 15 to that effect, and the display control unit 15 The display unit 5 is instructed to display the ground (step ST7).

  As for the predetermined distance, a distance set by default (for example, 30 km) may be adopted, or a distance arbitrarily set by the user (for example, 50 km is set considering the safety side). However, here, it is assumed that 30 km is set as the predetermined distance.

  In other words, even if information indicating that an earthquake having a seismic intensity of 5 or more has been acquired from the received earthquake information (in the case of YES in step ST4), the vehicle information is in Osaka but the earthquake information is, for example, in Tokyo. If it has occurred, the vehicle position and the epicenter are more than a predetermined distance (in the case of NO in step ST6), the process is terminated.

  When the distance between the vehicle position (current location) and the epicenter is within a predetermined distance (YES in step ST6), the calculation unit 14 is evacuated around the vehicle position (current location) in the background. The location is searched, and the distance from the epicenter is calculated for each of the searched shelters.

  Then, the calculation unit 14 checks whether or not the vehicle position (current location) is along the coast (step ST8), and if it is not along the coast (NO in step ST8), the distance from the epicenter is determined. The farthest shelter is automatically set as the destination, and the route to that shelter is set (step ST9).

  On the other hand, when the vehicle position (current location) is along the coast (in the case of YES in step ST8), the distance from the epicenter is farther than a predetermined distance and is higher (far from the coast, that is, A shelter with a high altitude) is automatically set as a destination, and a route to that shelter is set (step ST10). Since the map data includes altitude information, it can be obtained from the map data whether the shelter is on a hill.

And guidance is started about the route to the refuge set in step ST9 or step ST10 (step ST11).
In this way, when an earthquake occurs and evacuation is necessary, route guidance to a safe evacuation center is automatically provided, so the user (driver) determines whether or not to evacuate and the evacuation direction The user (driver) who has no intuition on the land can quickly move to an appropriate evacuation site and can secure the safety of the passenger.

Here, a specific example will be described with reference to FIGS.
First, as shown in FIG. 3 (a), when the host vehicle 20 is traveling toward the destination 21, an earthquake of seismic intensity 5 occurs in the vicinity, and the earthquake information acquisition unit 11 is connected to the radio tuner 1. It is assumed that earthquake information has been acquired from the received radio reception information (in the case of YES in step ST1). The road 31 is a guide route to the destination 21.

  Since the earthquake that has occurred has a seismic intensity of 5 or more, which is a predetermined seismic intensity, the calculation unit 14 determines that the information matches the conditions to be evacuated (in the case of YES in step ST4), and The distance between the vehicle position (current location) and the epicenter is calculated (step ST5). It is assumed that the distance calculated here is 10 km.

  Since the calculated distance 10 km is within a predetermined distance (here, 30 km) (in the case of YES in step ST6), the epicenter 40 is displayed on the map as shown in FIG. 3B (step ST7). ).

  At this time, the calculation unit 14 searches for a shelter near the vehicle position (current location) in the background, and calculates the distance from the epicenter for each searched shelter. FIG. 4 is an explanatory diagram showing calculation of the evacuation centers 41 and 42 thus searched and the distances L1 and L2 between the respective evacuation centers 41 and 42 and the epicenter 40.

  As shown in FIG. 4, it is assumed that the calculation unit 14 searches for evacuation shelters around the host vehicle 20 and can search for the evacuation shelters 41 and 42. At this time, the distance L1 between the refuge 41 and the epicenter 40 and the distance L2 between the refuge 42 and the epicenter 40 are calculated. Here, the calculated distances L1 and L2 are L1 <L2, as shown in FIG. 4, and therefore the evacuation site 42 is a evacuation site farther away from the epicenter 40.

  Then, it is determined whether or not the own vehicle position is along the coast based on the own vehicle position and the map data (step ST8). In this example, the own vehicle 20 is not along the coast (in the case of NO in step ST8). Then, the evacuation site 42 that is far from the epicenter 40 is automatically set as the destination, a route to the evacuation site 42 is set (step ST9), and route guidance is started (step ST11).

FIG. 5 is a diagram showing an example of a navigation screen displayed on the display unit 5 when route guidance to the evacuation site 42 is automatically started in this way.
As shown in FIG. 5, while the epicenter 40 is also displayed, a new destination evacuation site 42 and a guidance route (road) 32 to the evacuation site 42 are displayed. The initial destination 21 and the road 31 up to that point are displayed in broken lines, but when the route to the evacuation site 42 is set, the route setting to the original destination 21 is canceled. .

A specific example when an earthquake occurs while the vehicle is traveling along the coast will be described with reference to FIGS.
First, as shown in FIG. 6A, when the own vehicle 20 traveling along the coast is traveling toward the destination 21, an earthquake with a seismic intensity of 5 occurs in the vicinity, and the earthquake information acquisition unit 11 However, it is assumed that the earthquake information is acquired from the terrestrial digital broadcast received by the terrestrial digital TV tuner (when steps ST1 and ST2 are NO and step ST3 is YES). The road 31 is a guide route to the destination 21. The shaded area indicates the sea 50.

  Since the earthquake that has occurred has a seismic intensity of 5 or more, which is a predetermined seismic intensity, the calculation unit 14 determines that the information matches the conditions to be evacuated (in the case of YES in step ST4), and The distance between the vehicle position (current location) and the epicenter is calculated (step ST5). It is assumed that the distance calculated here is 5 km.

  Since the calculated distance 5 km is within a predetermined distance (30 km here) (in the case of YES in step ST6), the epicenter 40 is displayed on the map as shown in FIG. 6B (step ST7). ).

  At this time, the calculation unit 14 searches for a shelter near the vehicle position (current location) in the background, and calculates the distance from the epicenter for each searched shelter. FIG. 7 is an explanatory diagram showing calculation of the evacuation centers 41 and 42 thus searched, and the distances L1 and L2 between the respective evacuation centers 41 and 42 and the epicenter 40.

  As shown in FIG. 7, it is assumed that the arithmetic unit 14 searches for a shelter around the host vehicle 20 and can search for the shelter 41 and the shelter 42. At this time, the distance L1 between the refuge 41 and the epicenter 40 and the distance L2 between the refuge 42 and the epicenter 40 are calculated. Here, as shown in FIG. 7, the calculated distances L1 and L2 are L1≈L2, and both are longer than a predetermined distance (for example, 10 km), but the evacuation shelter 41 is higher than the evacuation shelter 42 ( This is an evacuation center located at a distant altitude.

  Then, whether or not the vehicle position is along the coast is determined based on the vehicle position and the map data (step ST8). In this example, the vehicle 20 is along the coast (in the case of YES in step ST8). The altitude of the evacuation shelter 41 and the evacuation shelters 42 that are far from the epicenter 40 and are higher than the predetermined distance, that is, the shelters 41 and 42 that are farther from the epicenter 40 than the predetermined distance. The shelter 41 at a higher position is automatically set as the destination, a route to the shelter 41 is set (step ST10), and route guidance is started (step ST11).

FIG. 8 is a diagram illustrating an example of a navigation screen displayed on the display unit 5 when the route guidance to the refuge 41 is automatically started in this way.
As shown in FIG. 8, the epicenter 40 is displayed, and a new destination evacuation center 41 and a guide route (road) 32 to the evacuation center 41 are displayed. The initial destination 21 and the road 31 up to that point are displayed in broken lines, but when the route to the evacuation center 41 is set, the route setting to the original destination 21 is canceled. .

  As described above, according to the first embodiment, when evacuation is required in the event of an earthquake, the route from the epicenter to a refuge far away from the epicenter or the hill if traveling along the coast A route to a certain evacuation site is set and route guidance is provided, so there is no worry that the user (driver) should decide whether or not to evacuate, or the direction of evacuation, etc. Even a driver) can quickly move to an appropriate evacuation center, and can ensure the safety of passengers.

Embodiment 2. FIG.
FIG. 9 is a block diagram showing a configuration of the navigation apparatus in the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected to the structure similar to what was demonstrated in Embodiment 1, and the overlapping description is abbreviate | omitted. In the second embodiment described below, as compared with the first embodiment, the navigation apparatus 10A further includes a transmission control unit 16.

  The transmission control unit 16 communicates with the mobile information terminal 101 to which the user is connected in advance via Bluetooth, and sends information or an image to be transmitted to a partner (destination address) arbitrarily set (registered) in advance by e-mail. An instruction is given to the Bluetooth module 6 to automatically transmit. Note that the destination of the mail transmission may be one place or a plurality of places.

  In addition, in addition to the same processing as the calculation unit 14 in the first embodiment, the calculation unit 14 in the second embodiment notifies the transmission control unit 16 to the outside when it is necessary to contact the outside. To instruct.

FIG. 10 is a flowchart showing the operation of the navigation device in the second embodiment.
The processing of steps ST21 to ST31 is the same as the processing of steps ST1 to ST11 in the flowchart shown in FIG.

  In the second embodiment, after starting the guidance to the automatically set evacuation center (step ST31), the transmission control unit 16 checks whether or not the navigation device 10A is connected to the portable information terminal 101. (Step ST32).

  And only when the user (driver) has previously connected the navigation device 10A and the portable information terminal 101 via Bluetooth (in the case of YES in step ST32), the vehicle position and evacuation to the address set arbitrarily. Information indicating the location (map image, character information, etc.) is transmitted (step ST33).

  FIG. 11 is a diagram showing an example of the contents of an email transmitted by Bluetooth communication when a navigation screen as shown in FIG. 5 is displayed on the display unit 5 and route guidance to the shelter 42 is started. .

  The content of the email to be transmitted is at least information indicating the vehicle position (current location) and the evacuation location. For example, as shown in FIG. 11, the same map image as that displayed on the display unit 5 of the navigation device 10A 51 and character information 52. In the map image 51, the epicenter 40, the host vehicle 20, the routed evacuation site 42, and a guide route (road) 32 to the evacuation site 42 are displayed.

  Also, as the character information 52, for example, “Since the automatic evacuation route has been set, the driver's current vehicle position information has been transferred. Current location: □□□□ △△△△ 5 chome, evacuation Location: XX Prefecture □□ City △△△△ xxx Elementary School ”includes information indicating the current location and the evacuation site to which she is moving.

  FIG. 12 is a diagram showing an example of the content of an email transmitted by Bluetooth communication when a navigation screen as shown in FIG. 8 is displayed on the display unit 5 and route guidance to the refuge 41 is started. .

  The content of the email to be transmitted is at least information indicating the vehicle position (current location) and the evacuation location. For example, as shown in FIG. 12, the same map image displayed on the display unit 5 of the navigation device 10A 51 and character information 52. In the map image 51, the epicenter 40, the own vehicle 20, the route-set evacuation site 41, and a guide route (road) 32 to the evacuation site 41 are displayed.

  Also, as the character information 52, for example, “Since the automatic evacuation route has been set, the driver's current vehicle position information has been transferred. Current location: □□□□ △△△△ 5 chome, evacuation Location: XX Prefecture □□ City △△△△ xxx Elementary School ”includes information indicating the current location and the evacuation site to which she is moving.

  In this way, when route guidance to an evacuation center is automatically performed in the event of an earthquake, the location of the vehicle (current location) and the evacuation center to which address is set (registered) in advance by the family, etc. By sending information indicating whether you are moving, you can get information on driver safety and shelter even if you are unable to reach the telephone in an emergency, so you can feel safe about your family. Can be made. In addition, the driver can avoid the time of contacting the family and can arrive at the evacuation center while concentrating on driving.

  As described above, according to the second embodiment, in addition to the same effects as those of the first embodiment, the vehicle position (current location) and the refuge information are sent to a preset address (registered) such as a family. Thus, it is possible to omit the time of contacting the family and the like, and it is possible to arrive at the evacuation center while concentrating on driving and to reassure the family and the like.

Embodiment 3 FIG.
In the first and second embodiments described above, the navigation device according to the present invention is a navigation device brought into or mounted on a vehicle and has a vehicle navigation function, a display control function, and a transmission control function. Is applied to the case where it has a navigation function, a display control function, etc., and the result is displayed on the display unit (display device) of the in-vehicle device, or is installed in a portable information terminal such as a smartphone, a tablet PC, or a mobile phone. The present invention can be applied to applications such as a navigation function and a display control function, and can also be applied to a case where an application such as a navigation function and a display control function is executed in cooperation with a portable information terminal and the server.

  FIG. 13 is a diagram showing an outline of the navigation system in the third embodiment of the present invention. In this navigation system, the in-vehicle device 100 performs navigation processing and display control in cooperation with at least one of the portable information terminal 101 such as a smartphone and the server 102, or at least one of the portable information terminal 101 such as the smartphone and the server 102. However, it may take various forms such as performing navigation processing, display control, etc., and displaying route guidance and map information on the in-vehicle device 100. Hereinafter, a configuration aspect of the navigation system will be described.

  In the first and second embodiments, it has been described that the in-vehicle device 100 has all of the navigation function and display control function of the present invention. However, in the navigation system according to the third embodiment, the server 102 performs navigation processing, display control, and the like. And providing the result to the user by presenting the result to the in-vehicle device 100 via the portable information terminal 101, and the portable information terminal 101 performs navigation processing and display control in cooperation with the server 102. A case where the result is provided to the user by causing the in-vehicle device 100 to present will be described.

  First, a case will be described in which the server 102 performs navigation processing, display control, and the like, and causes the vehicle-mounted device 100 to present the results (search results, map information, and the like) via the portable information terminal 101.

  In this configuration, the case where the in-vehicle device 100 communicates with the server 102 via the portable information terminal 101 can be considered. The server 102 functions as the navigation device described in the first and second embodiments. The in-vehicle device 100 functions as an output device (display device) including at least an output unit (display unit) for providing a search result, map information, and the like by the portable information terminal 101 and the server 102 to the user.

In this case, the in-vehicle device 100 basically has only a communication function and an output function (display function), and receives search results, map information, and the like by the server 102 and provides them to the user.
That is, the server 102 is a navigation device, and the server 102 as the navigation device presents the route search result based on the destination input by the user, the search result based on the stop-by genre, etc. to the in-vehicle device 100 together with the map information. Let
Even if comprised in this way, the effect similar to Embodiment 1, 2 can be acquired.

  A case will be described in which the portable information terminal 101 performs navigation processing, display control, and the like in cooperation with the server 102, and the in-vehicle device 100 provides the user with the results (search results, map information, and the like).

  Also in this configuration, the case where the in-vehicle device 100 communicates with the server 102 via the portable information terminal 101 is considered, and the application of the portable information terminal 101 performs navigation processing, display control, and the like in cooperation with the server 102. The in-vehicle device 100 functions as an output device (display device) including at least an output unit (display unit) for providing a search result, map information, and the like by the portable information terminal 101 and the server 102 to the user.

  Also in this case, the in-vehicle device 100 basically has only a communication function and an output function (display function), and receives search results, map information, and the like based on cooperation between the portable information terminal 101 and the server 102 and provides them to the user. To do.

That is, the application of the portable information terminal 101 causes the in-vehicle device 100 that is an output device (display device) to display the route search result based on the destination input by the user, the search result based on the stop-by genre, and the map information. .
Even if comprised in this way, the effect similar to Embodiment 1, 2 can be acquired.

  In the present invention, within the scope of the invention, any combination of the embodiments, or any modification of any component in each embodiment, or omission of any component in each embodiment is possible. .

  1 radio tuner / VICS tuner, 2 terrestrial digital TV tuner, 3 GPS receiver, 4 map data storage unit, 5 display unit, 6 Bluetooth module, 10, 10A navigation device, 11 earthquake information acquisition unit, 12 own vehicle position detection unit , 13 Map data acquisition unit, 14 calculation unit, 15 display control unit, 16 transmission control unit, 20 own vehicle, 21 destination, 31, 32 road (guide route), 40, epicenter, 41, 42 shelter, 50 Sea, 51 Map image, 52 Character information, 100 In-vehicle device, 101 Portable information terminal, 102 Server.

Claims (7)

In a navigation device carried in or mounted on the vehicle, which performs a route search from the current location of the vehicle to a destination based on the current location of the vehicle and map data,
An earthquake information acquisition unit that acquires earthquake information when an earthquake occurs,
When it is determined whether or not the vehicle needs to be evacuated based on the current location of the vehicle, the map data, and the earthquake information acquired by the earthquake information acquisition unit. In addition, an arithmetic unit that searches for a shelter around the vehicle, sets a route to the shelter, and starts guidance,
A display control unit for displaying a route to the evacuation site set by the calculation unit together with the epicenter of the earthquake on the display unit when the calculation unit determines that it is necessary to evacuate. A featured navigation device. The calculation unit determines that the vehicle needs to be evacuated when the seismic intensity of the earthquake is equal to or greater than a predetermined seismic intensity and the epicenter of the earthquake and the current location of the vehicle are within a predetermined distance. The navigation device according to claim 1, wherein: The calculation unit, when searching for a plurality of shelters around the vehicle, sets a route to a shelter farthest from the epicenter of the earthquake and starts guidance. The navigation apparatus according to claim 1 or 2. When the current location of the vehicle is along the coast and the computing unit searches for a plurality of shelters around the vehicle, the computing unit has a shelter whose distance from the epicenter of the earthquake is longer than a predetermined distance. The navigation apparatus according to any one of claims 1 to 3, wherein a route is set to an evacuation site at a high altitude and guidance is started. A transmission control unit that transmits information including at least the evacuation site set by the calculation unit and the position of the vehicle to a preset address when the calculation unit determines that it is necessary to evacuate; The navigation device according to any one of claims 1 to 4, further comprising: In a navigation device that performs a route search from the current location of the vehicle to a destination based on the current location of the vehicle and map data, and displays route guidance information on a display device,
An earthquake information acquisition unit that acquires earthquake information when an earthquake occurs,
When it is determined whether or not the vehicle needs to be evacuated based on the current location of the vehicle, the map data, and the earthquake information acquired by the earthquake information acquisition unit. In addition, an arithmetic unit that searches for a shelter around the vehicle, sets a route to the shelter, and starts guidance,
A display control unit that causes the display device to display the route to the evacuation site set by the calculation unit together with the epicenter of the earthquake when the calculation unit determines that it is necessary to evacuate; A navigation device characterized by the above. A navigation method for performing a route search from the current location of the vehicle to a destination based on the current location of the vehicle and map data, and displaying route guidance information on a display device,
An earthquake information acquisition unit acquiring earthquake information when an earthquake occurs;
The calculation unit needs to determine whether or not the vehicle needs to be evacuated based on the current location of the vehicle, the map data, and the earthquake information acquired by the earthquake information acquisition unit, and needs to evacuate If it is determined that, searching for a shelter around the vehicle, setting a route to the shelter and starting guidance;
When the display control unit determines that the calculation unit needs to evacuate, the route to the evacuation site set by the calculation unit is displayed on the display device together with the earthquake epicenter. A navigation method characterized by comprising.

Images