JP6882610B2 - Notification device and notification method - Google Patents

Description

The present invention relates to a notification device and a notification method for notifying a road damage situation at the time of a disaster.

Conventionally, a technology has been disclosed that collects location information acquired from a navigation device or a smartphone and images of roads corresponding to the location information, and distributes information related to vehicle driving such as traffic congestion or road closures on the road. For example, see Patent Document 1).

JP-A-2015-76078

In the event of a disaster, the roads that are always on the road may become impassable, and the driver may have to get out of the vehicle and evacuate on foot. However, in the past, it was not possible to know the damage status of the road, such as whether or not the road could be passed in the event of a disaster. That is, there is a problem that it is not possible to notify the driver or the like of appropriate information according to the damage situation of the road.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a notification device and a notification method capable of transmitting appropriate information according to a road damage situation.

In order to solve the above problems, the notification device according to the present invention includes a map information acquisition unit that acquires map information including road information, a position information collection unit that collects position information of a plurality of communication terminals in chronological order, and the like. Based on at least the time-series position information collected by the position information collection unit, the vehicle inside / outside determination unit that determines whether each communication terminal exists inside or outside the vehicle, and the map information acquired by the map information acquisition unit, Based on the time-series position information collected by the position information collection unit and the result of judgment by the vehicle inside / outside judgment unit, whether or not a vehicle or pedestrian can pass on the road where each communication terminal exists at the time of a disaster. It is equipped with a road damage estimation unit that estimates the indicated road damage and a notification unit that notifies the road damage estimated by the road damage estimation unit.

Further, in the notification method according to the present invention, map information including road information is acquired, position information of a plurality of communication terminals is collected in time series, and each communication terminal is a vehicle based on at least the collected time series position information. Based on the acquired map information, the collected time-series location information, and the judgment result, it is determined whether it exists inside or outside, and the vehicle or pedestrian walks on the road where each communication terminal exists at the time of a disaster. Estimate road damage that indicates whether or not a person can pass, and notify the estimated road damage.

According to the present invention, the notification device is collected by a map information acquisition unit that acquires map information including road information, a position information collection unit that collects position information of a plurality of communication terminals in chronological order, and at least a position information collection unit. Based on the time-series position information, the vehicle inside / outside judgment unit that determines whether each communication terminal exists inside or outside the vehicle, the map information acquired by the map information acquisition unit, and the position information collection unit collect the information. A road that estimates road damage that indicates whether a vehicle or pedestrian can pass on the road where each communication terminal exists at the time of a disaster, based on the time-series position information and the result of judgment by the vehicle inside / outside judgment unit. Since the damage estimation unit and the notification unit for notifying the road damage estimated by the road damage estimation unit are provided, it is possible to notify appropriate information according to the road damage situation.

In addition, the notification method acquires map information including road information, collects position information of a plurality of communication terminals in time series, and at least based on the collected time series position information, each communication terminal is either inside or outside the vehicle. Based on the acquired map information, the collected time-series location information, and the judgment result, vehicles or pedestrians pass on the road where each communication terminal exists at the time of a disaster. Since road damage indicating whether or not it is possible is estimated and the estimated road damage is notified, it is possible to notify appropriate information according to the road damage situation.

Objectives, features, aspects, and advantages of the present invention will be made more apparent with the following detailed description and accompanying drawings.

It is a block diagram which shows an example of the structure of the notification device by embodiment of this invention. It is a block diagram which shows an example of the structure of the notification device by embodiment of this invention. It is a block diagram which shows an example of the hardware composition of the notification device by embodiment of this invention. It is a flowchart which shows an example of the operation of the notification device by embodiment of this invention. It is a flowchart which shows an example of the operation of the notification device by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a figure which shows an example of the notification by embodiment of this invention. It is a block diagram which shows an example of the structure of the notification device by embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment>
<Structure>
FIG. 1 is a block diagram showing an example of the configuration of the notification device 1 according to the embodiment of the present invention. Note that FIG. 1 shows the minimum necessary configuration for configuring the notification device according to the present embodiment.

As shown in FIG. 1, the notification device 1 includes a map information acquisition unit 2, a position information collection unit 3, a vehicle inside / outside determination unit 4, a road damage estimation unit 5, and a notification unit 6. The map information acquisition unit 2 acquires map information including road information. The position information collecting unit 3 collects the position information of a plurality of communication terminals in chronological order. The vehicle inside / outside determination unit 4 determines whether each communication terminal exists inside or outside the vehicle, at least based on the time-series position information collected by the position information collecting unit 3. The road damage estimation unit 5 is used by each communication terminal based on the map information acquired by the map information acquisition unit 2, the time-series position information collected by the position information collection unit 3, and the result of determination by the vehicle inside / outside determination unit 4. Estimate road damage on existing roads. The notification unit 6 notifies the road damage estimated by the road damage estimation unit 5.

Next, another configuration of the notification device including the notification device 1 shown in FIG. 1 will be described.

FIG. 2 is a block diagram showing an example of the configuration of the notification device 7 according to another configuration.

As shown in FIG. 2, the notification device 7 includes a map information acquisition unit 2, a position information collection unit 3, a vehicle inside / outside determination unit 4, a road damage estimation unit 5, a notification unit 6, and a map information storage unit 8. A location information storage unit 9, a communication terminal information acquisition unit 10, a vehicle information acquisition unit 11, a road damage information storage unit 12, and a communication interface unit 13 are provided. The communication interface unit 13 is communicably connected to the communication terminals 15a to 15d via the communication network 14. The communication terminal 15a exists in the vehicle 16a. The communication terminal 15b exists in the vehicle 16b. The communication terminal 15c is possessed by a user 17a existing outside the vehicle. The communication terminal 15d is possessed by a user 17b existing outside the vehicle. Hereinafter, the communication terminals 15a to 15d are also collectively referred to as the communication terminal 15. The vehicle 16a and the vehicle 16b are also collectively referred to as the vehicle 16. User 17a and user 17b are also collectively referred to as user 17.

The map information acquisition unit 2 acquires map information including road information. The map information acquisition unit 2 may acquire map information from the outside via the communication network 14, or may acquire map information from a storage medium (not shown) mounted on the notification device 7.

The map information storage unit 8 is composed of a storage device such as a hard disk drive (HDD) or a semiconductor memory, and stores the map information acquired by the map information acquisition unit 2. The map information storage unit 8 may be provided outside the notification device 7.

The position information collecting unit 3 collects the position information of each communication terminal 15 from each communication terminal 15 in chronological order via the communication interface unit 13 and stores it in the position information storage unit 9. At this time, the position information collecting unit 3 acquires an ID (Identification) for identifying each communication terminal 15 as well as the position information. It is assumed that each communication terminal 15 has a function of acquiring its own current position information, such as GPS (Global Positioning System).

The position information storage unit 9 is composed of a storage device such as a hard disk or a semiconductor memory, and stores the position information of each communication terminal 15 collected by the position information collection unit 3 in chronological order. Specifically, the position information storage unit 9 stores the position information of each communication terminal 15 and the time information obtained from the position information according to the ID of each communication terminal 15. The time information may be the time information when each communication terminal 15 acquires the position information, or may be the time information when the position information collecting unit 3 collects the position information from each communication terminal 15. Good. The position information storage unit 9 may be provided outside the notification device 7.

The communication terminal information acquisition unit 10 acquires communication terminal information, which is information about each communication terminal 15, from each communication terminal 15 via the communication interface unit 13. For example, the communication terminal information acquisition unit 10 acquires the measurement result of the physical quantity measurement sensor provided in each communication terminal 15 as the communication terminal information. Examples of the physical quantity measuring sensor include a pedometer that measures the number of steps of a pedestrian.

The vehicle information acquisition unit 11 acquires vehicle information, which is information about the vehicle in which each communication terminal 15 exists. Examples of vehicle information include vehicle type, vehicle speed, and position information indicating the current position of the vehicle.

The vehicle inside / outside determination unit 4 determines whether each communication terminal 15 exists inside or outside the vehicle based on at least the time-series position information of each communication terminal 15 stored in the position information storage unit 9. .. Further, the vehicle inside / outside determination unit 4 can further consider at least one of the communication terminal information acquired by the communication terminal information acquisition unit 10 and the vehicle information acquired by the vehicle information acquisition unit 11. The details of the determination of the inside and outside of the vehicle by the vehicle inside / outside determination unit 4 will be described later.

The road damage estimation unit 5 determines the map information stored in the map information storage unit 8, the time-series position information of each communication terminal 15 stored in the position information storage unit 9, and the vehicle inside / outside determination unit 4. Based on the result, the road damage of the road on which each communication terminal 15 exists is estimated. Specifically, the road damage estimation unit 5 estimates the place where the road damage has occurred, the state of the road damage, and the like. The result estimated by the road damage estimation unit 5 is stored in the road damage information storage unit 12 as road damage information. The details of road damage estimation by the road damage estimation unit 5 will be described later.

The road damage information storage unit 12 is composed of a storage device such as a hard disk or a semiconductor memory, and stores the result estimated by the road damage estimation unit 5 as road damage information. The road damage information storage unit 12 may be provided outside the notification device 7.

The notification unit 6 notifies the road damage information stored in the road damage information storage unit 12 to the outside via the communication interface unit 13. For example, the notification unit 6 notifies the navigation device mounted on the communication terminal 15 or the vehicle 16 of the road damage information. In this case, road damage information is displayed on the display unit of the communication terminal 15 or the navigation device. The notification unit 6 may notify the road damage information in response to a request from the outside such as the communication terminal 15 or the navigation device, and when the road damage information storage unit 12 stores new road damage information, The road damage information may be automatically notified to the outside of the communication terminal 15 or the navigation device.

FIG. 3 is a block diagram showing an example of the hardware configuration of the notification device 7.

Map information acquisition unit 2, position information collection unit 3, vehicle inside / outside determination unit 4, road damage estimation unit 5, notification unit 6, communication terminal information acquisition unit 10, vehicle information acquisition unit 11, and communication interface unit 13 in the notification device 7. Each function of is realized by a processing circuit. That is, the notification device 7 acquires map information, collects position information in chronological order, determines whether each communication terminal 15 exists inside or outside the vehicle, estimates road damage, and road damage information. Is provided to the outside, vehicle information is acquired, and a processing circuit for communicating with the outside is provided. The processing circuit is a processor 18 (also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a DSP (Digital Signal Processor)) that executes a program stored in the memory 19.

Map information acquisition unit 2, position information collection unit 3, vehicle inside / outside determination unit 4, road damage estimation unit 5, notification unit 6, communication terminal information acquisition unit 10, vehicle information acquisition unit 11, and communication interface unit 13 in the notification device 7. Each function of is realized by software, firmware, or a combination of software and firmware. The software or firmware is described as a program and stored in the memory 19. The processing circuit realizes the functions of each part by reading and executing the program stored in the memory 19. That is, the notification device 7 has a step of acquiring map information, a step of collecting position information in chronological order, a step of determining whether each communication terminal 15 exists inside or outside the vehicle, and a step of estimating road damage. The memory 19 is provided for storing a program in which a step of notifying the road damage information to the outside, a step of acquiring vehicle information, and a step of communicating with the outside are executed as a result. In addition, these programs include a map information acquisition unit 2, a position information collection unit 3, a vehicle inside / outside determination unit 4, a road damage estimation unit 5, a notification unit 6, a communication terminal information acquisition unit 10, a vehicle information acquisition unit 11, and communication. It can also be said that the procedure or method of the interface unit 13 is executed by a computer. Here, the memory is, for example, non-volatile or volatile such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EEPROM (Erasable Programmable Read Only Memory), and EEPROM (Electrically Erasable Programmable Read Only Memory). It may be a sex semiconductor memory, a magnetic disk, a flexible disk, an optical disk, a compact disk, a DVD, or any storage medium that will be used in the future.

<Operation>
Hereinafter, the vehicle inside / outside determination process by the vehicle inside / outside determination unit 4 and the road damage estimation process by the road damage estimation unit 5 will be described.

<Vehicle inside / outside judgment processing>
FIG. 4 is a flowchart showing an example of the operation of the notification device 7, and shows the vehicle inside / outside determination process by the vehicle inside / outside determination unit 4.

In step S101, the vehicle inside / outside determination unit 4 sets the communication terminal status to "outside the vehicle". The communication terminal status is information indicating whether each communication terminal 15 exists inside or outside the vehicle. The communication terminal status set here is the default information, and the communication terminal status may be set to "in-vehicle".

In step S102, the vehicle inside / outside determination unit 4 acquires the position information and ID of the communication terminal 15 from one communication terminal 15. Specifically, the vehicle inside / outside determination unit 4 acquires the current position information and ID of the communication terminal 15. These pieces of information are information acquired by the communication terminal information acquisition unit 10 from the communication terminal 15 via the communication interface unit 13. The communication terminal 15 to be determined by the vehicle inside / outside determination unit 4 is all communication terminals 15 to which the notification device 7 can communicate via the communication interface unit 13. That is, the vehicle inside / outside determination unit 4 determines whether all the communication terminals 15 capable of communicating with the notification device 7 exist inside or outside the vehicle.

In step S103, the vehicle inside / outside determination unit 4 acquires past time-series position information from the position information storage unit 9 for the communication terminal 15 corresponding to the ID acquired in step S102.

In step S104, the vehicle inside / outside determination unit 4 determines whether or not the communication terminal status of the communication terminal 15 corresponding to the ID acquired in step S102 is "outside the vehicle". If the communication terminal status is not "outside the vehicle", the process proceeds to step S105. On the other hand, if the communication terminal status is "outside the vehicle", the process proceeds to step S108.

In step S105, the vehicle inside / outside determination unit 4 determines whether or not the communication terminal 15 corresponding to the ID acquired in step S102 satisfies the vehicle outside condition. If the conditions outside the vehicle are not satisfied, the process proceeds to step S106. On the other hand, if the conditions outside the vehicle are satisfied, the process proceeds to step S107.

Here, the conditions outside the vehicle will be described. The out-of-vehicle condition is a condition for determining that the communication terminal 15 exists outside the vehicle. For example, when the communication terminal 15 moves other than the predetermined behavior of the vehicle, it may be determined that the communication terminal 15 exists outside the vehicle. Examples of the behavior of the vehicle include turning of the vehicle. When the communication terminal 15 makes a movement to turn a radius smaller than the turning radius of the vehicle, it can be determined that the communication terminal 15 exists outside the vehicle. In this case, the vehicle inside / outside determination unit 4 makes a determination based on the time-series position information stored in the position information storage unit 9 and the predetermined turning radius of the vehicle.

When the communication terminal 15 makes a movement peculiar to a pedestrian, it may be determined that the communication terminal 15 exists outside the vehicle. Examples of the movement peculiar to the pedestrian include the vertical movement of the pedestrian according to the walking pace, the sudden change of direction of the pedestrian, and the like. In this case, the vehicle inside / outside determination unit 4 determines whether or not the pedestrian is moving in the vertical direction according to the walking pace, based on the measurement result of the physical quantity measurement sensor provided in the communication terminal 15. Further, the vehicle inside / outside determination unit 4 determines whether or not the pedestrian has suddenly changed direction based on the time-series position information stored in the position information storage unit 9.

When the communication terminal 15 moves in the left-right direction equal to or larger than the width of the vehicle, it may be determined that the communication terminal 15 exists outside the vehicle. In this case, the vehicle inside / outside determination unit 4 makes a determination based on the time-series position information stored in the position information storage unit 9 and the vehicle width of the vehicle. As for the vehicle width information, the vehicle inside / outside determination unit 4 may hold information on the vehicle width of a general vehicle corresponding to the vehicle type, and the vehicle information acquisition unit 11 may perform vehicle width as vehicle information from the vehicle 16. Information may be obtained. Examples of vehicle types include large, small, and motorcycles.

When the communication terminal 15 moves on a road other than the roadway, it may be determined that the communication terminal 15 exists outside the vehicle. In this case, the vehicle inside / outside determination unit 4 makes a determination based on the time-series position information stored in the position information storage unit 9 and the map information stored in the map information storage unit 8.

When the moving speed of the communication terminal 15 becomes close to a stop and the communication terminal 15 moves in a vehicle, it may be determined that the communication terminal 15 exists outside the vehicle. The moving speed of the communication terminal 15 can be obtained from the time-series position information stored in the position information storage unit 9. Further, as the movement that the communication terminal 15 cannot realize in the vehicle, for example, the movement of the communication terminal 15 described above may be used.

Returning to the description of FIG. 4, in step S106, the vehicle inside / outside determination unit 4 sets the communication terminal status to “inside the vehicle”. In step S107, the vehicle inside / outside determination unit 4 sets the communication terminal status to "outside the vehicle".

In step S108, the vehicle inside / outside determination unit 4 determines whether or not the communication terminal 15 corresponding to the ID acquired in step S102 satisfies the vehicle interior condition. If the in-vehicle conditions are not satisfied, the process proceeds to step S109. On the other hand, if the conditions in the vehicle are satisfied, the process proceeds to step S110.

Here, the conditions inside the vehicle will be described. The in-vehicle condition is a condition for determining that the communication terminal 15 exists in the vehicle. For example, when the communication terminal 15 is moving at a speed equal to or higher than a predetermined speed, it may be determined that the communication terminal 15 exists in the vehicle. The predetermined speed means a speed at which a human cannot move, and may be, for example, a speed of 15 km / h or more. In this case, the vehicle inside / outside determination unit 4 obtains the moving speed of the communication terminal 15 from the time-series position information stored in the position information storage unit 9.

When the communication terminal 15 moves according to the predetermined behavior of the vehicle, it may be determined that the communication terminal 15 exists in the vehicle. The vehicle inside / outside determination unit 4 determines based on the time-series position information stored in the position information storage unit 9 and the predetermined behavior of the vehicle.

Returning to the description of FIG. 4, in step S109, the vehicle inside / outside determination unit 4 sets the communication terminal status to “outside the vehicle”. In step S110, the vehicle inside / outside determination unit 4 sets the communication terminal status to "inside the vehicle".

<Road damage estimation processing>
FIG. 5 is a flowchart showing an example of the operation of the notification device 7, and shows the road damage estimation process by the road damage estimation unit 5.

In step S201, the road damage estimation unit 5 sets the road status to "no abnormality". Road status is information that indicates the condition of the road, specifically, the road is undamaged, vehicles are impassable but pedestrians are traversable, or vehicles and pedestrians. Includes information that the road is impassable. The road status set here is the default information. If the road status is "no abnormality", it means that there is no damage to the road.

In step S202, the road damage estimation unit 5 determines whether or not there is a place where the in-vehicle communication terminal is stagnant. The in-vehicle communication terminal refers to a communication terminal 15 existing in the vehicle, and refers to a communication terminal 15 in which the vehicle inside / outside determination unit 4 sets the communication terminal status to "inside the vehicle". Hereinafter, the communication terminal 15 existing in the vehicle is also referred to as an in-vehicle communication terminal. Specifically, the road damage estimation unit 5 is an in-vehicle communication terminal based on the time-series position information stored in the position information storage unit 9 and the map information stored in the map information storage unit 8. Determine if there is a place where is stagnant. If there is a place where the in-vehicle communication terminal is stagnant, the process proceeds to step S203. On the other hand, if there is no place where the in-vehicle communication terminal is stagnant, the process proceeds to step S204.

In step S203, the road damage estimation unit 5 sets the road status to "no abnormality".

In step S204, the road damage estimation unit 5 determines whether or not the out-of-vehicle communication terminal is moving on the road at the location where the in-vehicle communication terminal is determined to be stagnant in step S202. The out-of-vehicle communication terminal refers to a communication terminal 15 existing outside the vehicle, and refers to a communication terminal 15 in which the inside / outside determination unit 4 sets the communication status to "outside the vehicle". Hereinafter, the communication terminal 15 existing outside the vehicle is also referred to as an out-of-vehicle communication terminal. Specifically, the road damage estimation unit 5 is a communication terminal outside the vehicle based on the time-series position information stored in the position information storage unit 9 and the map information stored in the map information storage unit 8. Determine if is moving on the road. If the out-of-vehicle communication terminal is not moving on the road, the process proceeds to step S205. On the other hand, when the communication terminal outside the vehicle is moving on the road, the process proceeds to step S206.

In step S205, the road damage estimation unit 5 sets the road status to "vehicle running and non-running". A road status of "Vehicle running and impassable" indicates that vehicles and pedestrians are impassable on the road.

In step S206, the road damage estimation unit 5 sets the road status to "vehicle not allowed to travel, walkable". When the road status is "Vehicle not allowed, walkable", it means that the vehicle cannot pass on the road, but the pedestrian can pass on the road.

In step S207, the road damage estimation unit 5 stores the road status set in step S203, step S205, or step S206 in the road damage information storage unit 12 as road damage information. After that, the notification unit 6 notifies the road damage information stored in the road damage information storage unit 12 to the outside via the communication interface unit 13.

<Notification example>
When the navigation device mounted on the communication terminal 15 or the vehicle 16 receives the road damage information from the notification unit 6 of the notification device 7, the navigation device displays information indicating the road damage status on the map. By looking at the road damage situation displayed on the map, the user of the communication terminal 15 or the navigation device can decide where to evacuate or whether to abandon the vehicle 16 and evacuate on foot. it can. Hereinafter, an example of notification by the notification unit 6 will be described with reference to FIGS. 6 to 10. FIGS. 6 to 10 show a case where road damage information is displayed on the display unit of the navigation device mounted on the vehicle 16.

FIG. 6 shows an example of a display indicating that the road is not damaged. In FIG. 6, the own vehicle position 25 indicates the current position of the vehicle 16 equipped with the navigation device. The region 21 is higher in altitude than the region 20. The hills 22, 23, and 24 are higher than the area 21. In this case, the user can determine that the road is not damaged.

FIG. 7 shows an example of a display indicating that vehicles and pedestrians cannot pass on the road. In FIG. 7, the object 26 shows a location where the road is damaged. Object 27 indicates that vehicles and pedestrians are impassable. In this case, the user can determine that the vehicle cannot pass in the direction of the hill 22.

FIG. 8 shows an example of a display indicating that a vehicle cannot pass on the road but a pedestrian can pass on the road. In FIG. 8, the object 28 shows that it can be moved on foot. The object 28 may be blinked. In this case, the user can determine that the vehicle cannot pass to the hill 22 but can pass on foot.

FIG. 9 shows an example of another display of FIG. 7. In FIG. 9, the object 29 is an icon indicating that vehicles and pedestrians are impassable. In this case, the user can determine at a glance that he / she cannot pass in the direction of the hill 22.

FIG. 10 shows an example of another display of FIG. In FIG. 10, the object 30 is an icon indicating that the vehicle is impassable but can be moved on foot. In this case, the user can determine at a glance that the vehicle cannot pass to the hill 22 but can pass on foot.

<Modification example 1>
FIG. 11 shows an example of displaying road damage information on the display unit of the navigation device mounted on the vehicle 16. In FIG. 11, the object 32 shows a traffic jam. Specifically, the road damage estimation unit 5 is in a plurality of vehicles based on the time-series position information stored in the position information storage unit 9 and the map information stored in the map information storage unit 8. A place where the communication terminal is stagnant for a certain distance is judged to be congested.

The object 33 indicates a limit point at which a U-turn is possible, and indicates that the vehicle 16 cannot make a U-turn from the point indicated by the object 33 on the hill 23 side. Specifically, the road damage estimation unit 5 is an in-vehicle communication terminal based on the time-series position information stored in the position information storage unit 9 and the map information stored in the map information storage unit 8. When the vehicle turns back on the road, it may be determined that the vehicle 16 cannot make a U-turn on the hill 23 side of the turning point.

When the out-of-vehicle communication terminal is moving on foot from the middle of the traffic jam, the object 31 indicating that the movement on foot is possible may be displayed.

From the above, the user can determine that he / she cannot pass to the hill 22. In addition, the user can determine that the vehicle 16 cannot pass to the hill 23 due to traffic congestion.

<Modification 2>
According to the road damage estimation unit 5, when the in-vehicle communication terminal is stagnant on the road and the out-of-vehicle communication terminal is moving outside the road without moving on the road, the vehicle and pedestrians cannot pass on the road. It may be presumed that pedestrians can pass other than the road.

FIG. 12 shows an example of displaying road damage information on the display unit of the navigation device mounted on the vehicle 16. In FIG. 12, the object 34 shows a traffic jam. Object 35 indicates that it is possible to move to the hill 22 on foot. The object 35 may be blinked.

From the above, it can be determined that the user cannot pass to the hill 23 by a vehicle due to traffic congestion, but can move to the hill 22 on foot.

<Modification example 3>
When the power of the communication terminal 15 of the predetermined ratio or more within the predetermined range is turned off, the road damage estimation unit 5 may estimate that the range is severely damaged. Specifically, the road damage estimation unit 5 estimates that when the power of the plurality of communication terminals 15 is turned off all at once, the range in which the plurality of communication terminals 15 exist is severely damaged. You may.

FIG. 13 shows an example of displaying road damage information on the display unit of the navigation device mounted on the vehicle 16. In FIG. 13, the object 36 shows a heavily damaged area.

From the above, since it is impossible for the user to go to the hill 22 and the hill 23, it can be determined that the user should go to the hill 24.

The road damage estimation unit 5 can predict the future damage range by estimating the range of the great damage in chronological order. For example, the damage range in the past, present, and future may be displayed on the map displayed on the display of the communication terminal 15 or the navigation device.

If the communication infrastructure is destroyed, the communication terminal 15 and the notification device 7 cannot communicate with each other. The road damage estimation unit 5 acquires information on whether or not the communication infrastructure is normal, and if the power of the communication terminal 15 is turned off even though other communication infrastructures are normal, "there is a great deal of damage. If the communication infrastructure is not normal, it may be judged that "a disaster has occurred" and "a disaster that may cause great damage has occurred".

<Modification example 4>
When the vehicle 16 is a vehicle that can be automatically driven and is provided with a driver sensing device that detects the driver's condition, when the driver is panicking, the vehicle 16 is automatically driven in an appropriate direction. You may let it. For example, in FIG. 8, the vehicle 16 may be automatically moved to the hill 24.

From the above, the vehicle 16 can be moved to an appropriate place even when the driver cannot drive.

<Modification 5>
The road damage estimation unit 5 is an in-vehicle communication terminal existing in a vehicle having a predetermined vehicle width or more corresponding to the vehicle type based on the vehicle type included in the vehicle information acquired by the vehicle information acquisition unit 11. When the vehicle is stagnant, it may be presumed that vehicles larger than the predetermined vehicle width cannot pass on the road. In this case, the road damage estimation unit 5 receives vehicle information including the vehicle type from the vehicle information acquisition unit 11.

From the above, the user can determine that a vehicle having a certain width or more cannot pass on the road.

It should be noted that vehicles of a predetermined weight or more may be impassable. In this case, the vehicle information acquisition unit 11 needs to acquire vehicle information including the weight of the vehicle.

Motorcycles and the like may be able to avoid damaged roads. In such a case, the motorcycle may be passable.

<Modification 6>
The vehicle inside / outside determination unit 4 may determine whether or not the user 17 is walking based on the measurement result of the physical quantity measurement sensor acquired by the communication terminal information acquisition unit 10 from the communication terminal 15. For example, when the physical quantity measurement sensor is a pedometer, it may be determined whether or not the user 17 is walking from the result measured by the pedometer. In this case, the communication terminal 15 may perform the vehicle inside / outside determination process.

<Modification 7>
The vehicle inside / outside determination unit 4 may determine the inside / outside of the vehicle based on the cooperation between the communication terminal 15 and the vehicle system provided in the vehicle 16.

For example, when the communication terminal 15 and the vehicle system are performing short-range communication such as Bluetooth (registered trademark), or the vehicle internal / external determination unit 4 is in a state where short-range communication is possible, the communication terminal 15 is used. Judge that it exists in the vehicle. On the other hand, when the communication terminal 15 and the vehicle system cannot perform short-range communication, the vehicle inside / outside determination unit 4 determines that the communication terminal 15 exists outside the vehicle. In this case, it is assumed that the vehicle system has a function of short-range communication with the communication terminal 15.

When the vehicle 16 is stopped, the door of the vehicle 16 is opened and closed, and the communication terminal 15 moves laterally with respect to the traveling direction of the vehicle 16, the vehicle inside / outside determination unit 4 moves the communication terminal 15 out of the vehicle. That is, it is determined that the communication terminal 15 exists outside the vehicle. In this case, the vehicle system shall detect the opening and closing of the door.

The vehicle inside / outside determination unit 4 may determine the inside / outside of the vehicle based on the position information of the vehicle 16 and the position information of the communication terminal 15. Specifically, the vehicle inside / outside determination unit 4 determines that the communication terminal 15 exists outside the vehicle when the distance between the vehicle 16 and the communication terminal 15 becomes long. On the other hand, when the distance between the vehicle 16 and the communication terminal 15 is substantially the same, it is determined that the communication terminal 15 exists in the vehicle.

<Modification 8>
The communication terminal 15 and the vehicle 16 may be provided with a high-precision positioning sensor using a quasi-zenith satellite or the like. In this case, it is possible to acquire the detailed position of the communication terminal 15, such as which lane of the road the communication terminal 15 is located in, and whether the communication terminal 15 is located on the roadway or the sidewalk. By detecting that the pedestrian carrying the communication terminal 15 or the vehicle 16 is moving away from the damaged road, the damaged state of the road can be estimated in units of several tens of centimeters.

<Modification example 9>
FIG. 14 is a block diagram showing an example of the configuration of the notification device 37.

As shown in FIG. 14, the notification device 37 is characterized by including a disaster information acquisition unit 38. Since other configurations are the same as those of the notification device 7 shown in FIG. 2, detailed description thereof will be omitted here.

The disaster information acquisition unit 38 acquires disaster information including the disaster type via the communication interface unit 13. Examples of disaster information include earthquake information, tsunami information, flood information, eruption information, fire information, landslide information, typhoon information, snowfall information, and tornado information. The disaster type is information indicating the type of such information.

The notification unit 6 makes the notification content different according to the disaster type acquired by the disaster information acquisition unit 38.

Each function of the disaster information acquisition unit 38 in the notification device 37 is realized by a processing circuit. That is, the notification device 37 includes a processing circuit for acquiring disaster information. The processing circuit is, for example, a processor 18 that executes a program stored in the memory 19 shown in FIG. The other components of the notification device 37 are the same as those of the notification device 7 shown in FIG.

Each function of the disaster information acquisition unit 38 in the notification device 37 is realized by software, firmware, or a combination of software and firmware. The software or firmware is described as a program and stored in the memory 19. The processing circuit realizes the functions of each part by reading and executing the program stored in the memory 19. That is, the notification device 37 includes a memory 19 for storing a program in which the step of acquiring disaster information is eventually executed. Further, it can be said that these programs cause the computer to execute the procedure or method of the disaster information acquisition unit 38. The other components of the notification device 37 are the same as those of the notification device 7 shown in FIG.

When a disaster requiring emergency evacuation occurs, it may be necessary to evacuate to a place suitable for evacuation in response to a tsunami, flood, eruption, fire, typhoon, tornado, etc. In this case, it is necessary to notify the navigation device mounted on the communication terminal 15 or the vehicle 16 of information considering the disaster type, map information, and road damage status. Further, when an area where the person cannot move due to a landslide or heavy snowfall is found, the communication terminal 15 or the navigation device may be notified so that a route for avoiding the area can be selected.

For example, when the disaster information acquisition unit 38 acquires disaster information including an earthquake and a tsunami, the notification unit 6 notifies the information shown in FIG. 7 together with the disaster information. The user who sees the display of FIG. 7 can determine that he / she should drive on a road without road damage and evacuate to the hill 23.

In the example of FIG. 8, the user can determine whether to abandon the vehicle 16 at a damaged part of the road and evacuate to the hill 22 on foot, or to evacuate by traveling to the hill 23 with the vehicle 16. When the disaster information includes the tsunami arrival time, the notification unit 6 may determine whether to evacuate to the hill 22 or the hill 23 and notify the person.

From the above, when a disaster occurs, it is possible to notify the user of information according to the disaster type.

<Modification example 10>
When a plurality of communication terminals 15 existing in a range corresponding to one vehicle 16 move substantially the same, the vehicle inside / outside determination unit 4 exists in the same vehicle 16. You may judge that you are doing it. In this case, the communication terminal information acquisition unit 10 may acquire the information of one of the plurality of communication terminals 15 on behalf of the communication terminal 15.

The communication terminal 15 existing in the vehicle 16 may communicate with the vehicle system to acquire the ID of the vehicle 16 and transmit the ID of the vehicle 16 to the notification device 7 together with the position information. As a result, the vehicle inside / outside determination unit 4 can determine whether or not a plurality of communication terminals 15 exist in the same vehicle, and can prevent duplicate counting of vehicles. In addition, it is possible to grasp an accurate traffic jam situation. Further, the amount of communication can be reduced.

<Modification 11>
When a plurality of communication terminals 15 existing in a range corresponding to one vehicle 16 move out of the range, the vehicle inside / outside determination unit 4 exists outside the vehicle 16. You may judge that it is. At this time, it may be determined that the communication terminal 15 existing within the above range exists in the vehicle 16.

From the above, according to the first embodiment, the road damage estimation unit 5 estimates the road damage status, and the notification unit 6 notifies the road damage information. Therefore, it is possible to notify appropriate information according to the damage situation of the road.

In the present invention, the embodiments can be appropriately modified or omitted within the scope of the invention.

Although the present invention has been described in detail, the above description is exemplary in all embodiments and the invention is not limited thereto. It is understood that innumerable variations not illustrated can be assumed without departing from the scope of the present invention.

1 Notification device, 2 Map information acquisition unit, 3 Position information collection unit, 4 Vehicle inside / outside judgment unit, 5 Road damage estimation unit, 6 Notification unit, 7 Notification device, 8 Map information storage unit, 9 Position information storage unit, 10 Communication Terminal information acquisition unit, 11 vehicle information acquisition unit, 12 road damage information storage unit, 13 communication interface unit, 14 communication network, 15 communication terminal, 16 vehicles, 17 users, 18 processors, 19 memories, 20, 21 areas, 22 to 24 hills, 25 vehicle positions, 26-36 objects, 37 notification devices, 38 disaster information acquisition department.

Claims (15)

The map information acquisition department that acquires map information including road information,
A location information collection unit that collects location information of multiple communication terminals in chronological order,
A vehicle inside / outside determination unit that determines whether each of the communication terminals exists inside or outside the vehicle based on at least the time-series position information collected by the position information collection unit.
Each communication terminal exists at the time of a disaster based on the map information acquired by the map information acquisition unit, the time-series position information collected by the position information collection unit, and the result of determination by the vehicle inside / outside determination unit. A road damage estimation unit that estimates road damage that indicates whether or not the vehicle or pedestrian can pass on the road
A notification unit that notifies the road damage estimated by the road damage estimation unit, and a notification unit that notifies the road damage.
A notification device including. The road damage estimation unit has no damage to the road, the vehicle cannot pass through the road but a pedestrian can pass through the road, or the vehicle and the pedestrian cannot pass through the road. The notification device according to claim 1, wherein the notification device is presumed to be possible. The road damage estimation unit is characterized in that when at least one communication terminal existing in the plurality of vehicles is moving on the road, the road is estimated to be undamaged. 2. The notification device according to 2. In the road damage estimation unit, at least one communication terminal existing in the plurality of vehicles is stagnant on the road, and at least one communication terminal existing outside the vehicle is the road. The notification device according to claim 2, wherein the vehicle is presumed to be impassable on the road, but a pedestrian is presumed to be able to pass on the road. In the road damage estimation unit, at least one communication terminal existing in the plurality of vehicles is stagnant on the road, and at least one communication terminal existing outside the vehicle is predetermined. The notification device according to claim 2, wherein when the vehicle and the pedestrian do not move out of the specified range, it is estimated that the vehicle and the pedestrian cannot pass through the road. In the road damage estimation unit, at least one communication terminal existing in the plurality of vehicles is stagnant on the road, and at least one communication terminal existing outside the vehicle is the road. When the vehicle and the pedestrian are not able to pass on the road when moving on a road other than the road without moving, it is presumed that the pedestrian can pass on the road other than the road. The notification device according to claim 1. The road damage estimation unit estimates that when the power of each communication terminal is turned off at a predetermined ratio or more within a predetermined range, the predetermined range is severely damaged. The notification device according to claim 1, wherein the notification device is characterized in that. Further provided with a vehicle information acquisition unit for acquiring vehicle information including the vehicle type of the vehicle in which each of the communication terminals exists.
Based on the vehicle information acquired by the vehicle information acquisition unit, the road damage estimation unit includes at least one communication terminal existing in the vehicle having a predetermined vehicle width or more corresponding to the vehicle type. The notification device according to claim 1, wherein when the vehicle is stagnant, it is estimated that the vehicle having a width equal to or larger than the predetermined vehicle width cannot pass on the road. It also has a disaster information acquisition department that acquires disaster information including disaster types.
The notification device according to claim 1, wherein the notification unit has different notification contents according to the disaster type acquired by the disaster information acquisition unit. When each of the communication terminals moves according to the behavior of the predetermined vehicle, the vehicle inside / outside determination unit determines that the communication terminal is present in the vehicle, and each of the communication terminals is the predetermined vehicle. The notification device according to claim 1, wherein when the vehicle makes a movement other than the behavior of the above, it is determined that the vehicle exists outside the vehicle. A communication terminal information acquisition unit for acquiring communication terminal information including measurement results of a physical quantity measurement sensor provided in each communication terminal is further provided.
The vehicle inside / outside determination unit is characterized in that it determines whether or not the user possessing each of the communication terminals is a pedestrian based on the measurement result acquired by the communication terminal information acquisition unit. , The notification device according to claim 1. A vehicle information acquisition unit that acquires vehicle information, which is information on the vehicle in which each of the communication terminals exists, is further provided.
The vehicle inside / outside determination unit is characterized in that, based on the vehicle information acquired by the vehicle information acquisition unit, it determines whether each of the communication terminals is inside or outside the vehicle. The notification device described. In the vehicle inside / outside determination unit, when a plurality of the communication terminals existing in a range corresponding to one vehicle make the same movement, the plurality of the communication terminals are present in the same vehicle. The notification device according to claim 1, wherein the notification device is determined to be present. When the communication terminal of at least one of the plurality of communication terminals existing in the range corresponding to the inside of one vehicle moves out of the range, the vehicle inside / outside determination unit moves at least one. The notification device according to claim 1, wherein the communication terminal is determined to exist outside the vehicle. Get map information including road information,
Collects location information of multiple communication terminals in chronological order,
Based on at least the collected time-series position information, it is determined whether each of the communication terminals exists inside or outside the vehicle.
Based on the acquired map information, the collected time-series location information, and the determination result, it indicates whether or not the vehicle or pedestrian can pass on the road on which each communication terminal exists at the time of a disaster. Estimate road damage,
A notification method for notifying the estimated road damage.

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