Risk determination device, risk determination method, and risk determination program

Abstract

To promote returning of a vehicle license.SOLUTION: A risk determination device comprises: a history information acquisition part for acquiring history information indicating an action history of a driver in a vehicle; a determination part for performing determination processing concerning a risk of driving the vehicle by the driver, based on the history information; and a notification part for performing risk notification processing of notifying a first notification destination different from the driver of risk information indicating a determination result, when it is determined that the driving by the driver is dangerous in the determination processing.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a risk determination device, a risk determination method, and a risk determination program. [Background technology]

[0002] Conventionally, a technology for determining the state of a driver while driving a vehicle has been developed. For example, Patent Document 1 (JP Patent Publication 2002-8159A) discloses the following driver state determination device. That is, the driver state determination device includes a body pressure sensor provided on the seat surface, and a computing device that calculates the center of gravity of the driver's seat pressure acting on the seat surface from data output from the body pressure sensor, and determines the driving state of the driver by comparing time series data of the change in the center of gravity with a characteristic pattern of the driver's driving state stored in advance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2002-8159 A Summary of the Invention [Problem to be solved by the invention]

[0004] In order to reduce traffic accidents caused by elderly drivers, a license surrender system has been implemented in which drivers voluntarily surrender their vehicle licenses. However, the license surrender rate for drivers aged 75 and over is low. There is a need for technology that can encourage drivers who pose a risk in driving vehicles to surrender their licenses.

[0005] The present disclosure has been made to solve the above-mentioned problems, and its purpose is to provide a risk judgment device, a risk judgment method, and a risk judgment program that can encourage the surrender of vehicle licenses. [Means for solving the problem]

[0006] The risk judgment device disclosed herein includes a history information acquisition unit that acquires history information indicating the driver's behavioral history in a vehicle, a judgment unit that performs a judgment process to judge the risk of the driver's driving of the vehicle based on the history information, and a notification unit that performs a risk notification process to notify a first notification destination other than the driver of risk information indicating the judgment result if the driver's driving is judged to be dangerous in the judgment process.

[0007] One aspect of the present disclosure can be realized not only as a risk judgment device equipped with such a characteristic processing unit, but also as a semiconductor integrated circuit that realizes part or all of the risk judgment device, or as a system that includes the risk judgment device. Effect of the Invention

[0008] According to the present disclosure, it is possible to encourage the surrender of vehicle licenses. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram illustrating an example of a configuration of a risk determination system according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a diagram illustrating an example of a configuration of a risk determination device according to an embodiment of the present disclosure. [Diagram 3] FIG. 3 is a diagram illustrating an example of a history table stored by the risk determination device according to the embodiment of the present disclosure. [Figure 4] FIG. 4 is a diagram illustrating an example of a facility table stored in the risk determination device according to the embodiment of the present disclosure. [Diagram 5] FIG. 5 is a diagram illustrating an example of an updated pattern table stored in the risk determination device according to the embodiment of the present disclosure. [Figure 6] FIG. 6 is a diagram illustrating an example of a road table stored in the risk determination device according to the embodiment of the present disclosure. [Figure 7]FIG. 7 is a diagram illustrating an example of a risk table created by the risk determination device according to the embodiment of the present disclosure. [Figure 8] FIG. 8 is a diagram illustrating an example of a service provision table stored by the risk determination device according to the embodiment of the present disclosure. [Figure 9] FIG. 9 is a diagram illustrating an example of a notification table stored in the risk determination device according to the embodiment of the present disclosure. [Figure 10] FIG. 10 is a flowchart defining an operation procedure when the risk determination device according to the embodiment of the present disclosure performs a risk notification process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] First, the contents of the embodiments of the present disclosure will be listed and described. (1) A risk judgment device according to an embodiment of the present disclosure includes a history information acquisition unit that acquires history information indicating the behavioral history of a driver of a vehicle, a judgment unit that performs a judgment process to judge the risk of the driver's driving of the vehicle based on the history information, and a notification unit that performs a risk notification process to notify a first notification destination other than the driver of risk information indicating the judgment result if the driver's driving is judged to be dangerous in the judgment process.

[0011] In this way, by judging the risk of driving by a driver based on the driver's behavior history in a vehicle, potential dangers can be easily discovered compared to judging the risk of driving by a short-term test such as a driving skill test, and the accuracy of judgment regarding license surrender can be improved. In addition, by notifying a notification destination other than the driver of the judgment result when the driver's driving of a vehicle is judged to be dangerous, the notification destination can grasp that there is a potential danger in the driving of the driver, and the notification destination can, for example, suggest to the driver that he or she surrender his or her license. Therefore, it is possible to promote the surrender of the vehicle license.

[0012] (2) In the above (1), the risk information may indicate that the first notification destination is to be requested to urge the driver to surrender the license for the vehicle.

[0013] With this configuration, the recipient of the risk information can recognize that the driver should be encouraged to return his or her license, thereby encouraging the recipient to implement the suggestion to the driver to return his or her license.

[0014] (3) In (1) or (2) above, the risk judgment device may further include a service information acquisition unit that acquires service information indicating services that can be provided when the driver is not driving the vehicle, and the notification unit may notify the service information to a second notification destination other than the driver.

[0015] With this configuration, the notification destination of the service information can understand that an alternative service based on the driving history of the driver will be provided even if the driver surrenders his / her license. This allows the notification destination to explain to the driver the sense of security that will come with life after surrendering the license.

[0016] (4) In the above (3), the second notification destination may be the same as the first notification destination.

[0017] With this configuration, the recipient of the notification can understand the dangers of the driver's driving and, if proposing to return the license, can explain that alternative services are available even if the license is returned, thereby making the proposal to the recipient to return the license more persuasive.

[0018] (5) In any of (1) to (4) above, the historical information may include an actual measurement of the time required for the driver to drive the vehicle from a first point to a second point, and the judgment unit may perform the judgment process based on the actual measurement and an estimated value of the time required for the vehicle to travel from the first point to the second point.

[0019] With this configuration, when a driver drives toward a destination, it can be determined that a lot of time has been spent on a detour, for example, and the driver can be notified that there is a risk of him or her getting lost.

[0020] (6) In any of (1) to (5) above, the history information may include first location information indicating a history of the location of the vehicle when the driver drove the vehicle in a first period, and second location information indicating a history of the location of the vehicle when the driver drove the vehicle in a second period after the first period, and the judgment unit may perform the judgment process based on the first location information and the second location information.

[0021] With this configuration, for example, it can be determined that the driver has reached a location that he or she would not normally drive to, and the driver can be notified that there is a risk that the driver may head to an unintended location.

[0022] (7) In any of (1) to (6) above, the history information may include a history of a position of a shift lever of the vehicle while the vehicle is stopped and a history of a rotation speed of a prime mover mounted on the vehicle, and the judgment unit may perform the judgment process based on the history of the position of the shift lever and the history of the rotation speed.

[0023] With this configuration, for example, when the vehicle is stopped, it can be determined that the driver has operated the accelerator incorrectly, and the driver can be notified that there is a risk of the driver making an accelerator operation error.

[0024] (8) In any of (1) to (7) above, the history information may include a history of the hazard lights of the vehicle being turned on and a history of the operation of a turn signal lever of the vehicle, and the judgment unit may perform the judgment process based on the lighting history and the operation history.

[0025] With this configuration, for example, it can be determined that the driver has operated the hazard lamps and turn signals incorrectly, and the driver can be notified that there is a risk of making a vehicle operation error while the vehicle is moving or stopped.

[0026] (9) In any of (1) to (8) above, the historical information may include a history of the hazard lights of the vehicle being illuminated while the vehicle is traveling and a history of the speed of the vehicle, and the judgment unit may perform the judgment process based on the illumination history and the speed history.

[0027] With this configuration, for example, it can be determined that the driver has operated the hazard lights incorrectly while the vehicle is traveling, and the driver can be notified that there is a risk of making a mistake in operating the vehicle while the vehicle is traveling.

[0028] (10) In any of (1) to (9) above, the risk judgment device may further include a correspondence information acquisition unit that acquires correspondence information indicating a correspondence relationship between the driver's identification information and the first notification destination, the history information acquisition unit may acquire the history information and the identification information, and the notification unit may perform the risk notification process to notify the first notification destination corresponding to the identification information of the risk based on the correspondence information.

[0029] With this configuration, the destination of the risk information can be easily specified.

[0030] (11) In (2) above, the risk judgment device may further include a return information acquisition unit that acquires return information indicating that the driver has surrendered the license and that the first notification destination has urged the driver to return the license, and when the return information acquisition unit acquires the return information, the notification unit may notify another notification destination other than the first notification destination of a request to grant a reward to the first notification destination.

[0031] With this configuration, if the driver surrenders his / her license as a result of the notification recipient's suggestion to the driver, the notification recipient can receive a reward, thereby encouraging the notification recipient to implement the driver's suggestion to surrender his / her license.

[0032] (12) A risk judgment method according to an embodiment of the present disclosure is a risk judgment method in a risk judgment device, and includes the steps of acquiring historical information indicating the behavioral history of a driver of a vehicle, performing a judgment process to judge the risk of the driver's driving of the vehicle based on the historical information, and, if the driver's driving is judged to be dangerous in the judgment processing step, performing a risk notification process to notify a first notification destination other than the driver of risk information indicating the judgment result.

[0033] In this way, by judging the risk of driving by a driver based on the driver's behavior history in a vehicle, potential dangers can be easily discovered compared to judging the risk of driving by a short-term test such as a driving skill test, and the accuracy of judgment regarding license surrender can be improved. In addition, by notifying a notification destination other than the driver of the judgment result when the driver's driving of a vehicle is judged to be dangerous, the notification destination can grasp that there is a potential danger in the driving of the driver, and the notification destination can, for example, suggest to the driver that he or she surrender his or her license. Therefore, it is possible to promote the surrender of the vehicle license.

[0034] (13) A risk judgment program according to an embodiment of the present disclosure is a risk judgment program used in a risk judgment device, and is a program for causing a computer to function as: a history information acquisition unit that acquires history information indicating the driver's behavioral history in a vehicle; a judgment unit that performs a judgment process to judge the risk of the driver's driving of the vehicle based on the history information; and a notification unit that performs a risk notification process to notify a first notification destination other than the driver of risk information indicating the judgment result if the driver's driving is judged to be dangerous in the judgment process.

[0035] In this way, by judging the risk of driving by a driver based on the driver's behavior history in a vehicle, potential dangers can be easily discovered compared to judging the risk of driving by a short-term test such as a driving skill test, and the accuracy of judgment regarding license surrender can be improved. In addition, by notifying a notification destination other than the driver of the judgment result when the driver's driving of a vehicle is judged to be dangerous, the notification destination can grasp that there is a potential danger in the driving of the driver, and the notification destination can, for example, suggest to the driver that he or she surrender his or her license. Therefore, it is possible to promote the surrender of the vehicle license.

[0036] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated. In addition, at least some of the embodiments described below may be arbitrarily combined.

[0037] <Danger Judgment System> Fig. 1 is a diagram showing an example of a configuration of a risk determination system according to an embodiment of the present disclosure. With reference to Fig. 1, a risk determination system 501 includes a risk determination device 101 and one or more in-vehicle devices 201. The risk determination device 101 and the in-vehicle device 201 can transmit and receive information via an external network 151 such as the Internet. The risk determination device 101 is, for example, a server.

[0038] The on-vehicle device 201 is mounted on the vehicle 1. The on-vehicle device 201 is connected to on-vehicle devices such as various sensors and cameras via, for example, a CAN (Controller Area Network) bus in an on-vehicle network mounted on the vehicle 1.

[0039] The in-vehicle device 201 acquires vehicle information related to its own vehicle 1, and transmits the acquired vehicle information to the risk determination device 101. The vehicle information includes, for example, measurement information indicating the measurement results of various sensors, image information indicating images captured by a camera, and location information indicating the location where the vehicle 1 is located.

[0040] More specifically, for example, the sensors detect information related to the vehicle 1. In this embodiment, for example, the sensors are a vehicle speed sensor that detects the speed of the vehicle 1, a shift lever sensor that detects the position of the shift lever, a rotation speed sensor that detects the rotation speed of the engine mounted in the vehicle 1 (hereinafter also referred to as "engine rotation speed"), a hazard lamp sensor that detects the operation of a hazard lamp by the driver, and a turn signal sensor that detects the operation of a turn signal by the driver. The engine is an example of a prime mover.

[0041] Each sensor performs a measurement process, for example, periodically, and transmits measurement information indicating the measurement result to the in-vehicle device 201 .

[0042] The camera performs an image capturing process, for example, periodically capturing an image of the area around the vehicle 1 and transmitting image information indicating the captured image to the in-vehicle device 201. The camera performs the image capturing process, for example, at the same timing as the measurement process by the sensor.

[0043] When the in-vehicle device 201 receives measurement information from the sensor and image information from the camera, the in-vehicle device 201 stores the received measurement information and image information in a storage unit.

[0044] Furthermore, the in-vehicle device 201 performs a position acquisition process to acquire position information. As an example, the position information is coordinates represented by latitude and longitude indicating the position of the vehicle 1 (hereinafter, also referred to as "vehicle coordinates").

[0045] Specifically, the in-vehicle device 201 periodically calculates the vehicle coordinates based on radio waves from a GPS (Global Positioning System) satellite, and stores the position information indicating the calculated vehicle coordinates in a storage unit. The in-vehicle device 201 performs a position acquisition process at the same timing as the measurement process by the sensor and the image capture process by the camera, for example.

[0046] When the in-vehicle device 201 receives the measurement information, image information, and position information, it stores the time when each piece of information was received (hereinafter also referred to as "acquisition time") in the storage unit in association with each piece of information.

[0047] The storage unit of the in-vehicle device 201 stores identification information for identifying the vehicle 1 (hereinafter also referred to as "vehicle ID (Identifier)") and identification information for identifying the driver (hereinafter also referred to as "driver ID").

[0048] The in-vehicle device 201 transmits a vehicle information group, including a plurality of pieces of vehicle information, a plurality of acquisition times corresponding to each of the plurality of pieces of vehicle information, a vehicle ID, and a driver ID, stored in the storage unit to the risk determination device 101 every time a certain time has elapsed since the in-vehicle device 201 was started up. For example, the in-vehicle device 201 transmits the vehicle information group to the risk determination device 101 every hour since the in-vehicle device 201 was started up, and deletes the vehicle information group stored in the storage unit.

[0049] When the risk determination device 101 receives the vehicle information group from the in-vehicle device 201, it determines the risk of the driver driving the vehicle 1 based on the vehicle information included in the received vehicle information group. The risk determination device 101 is used, for example, by a business entity that manages the operation of the vehicle 1, or an individual (hereinafter collectively referred to as a user).

[0050] <Danger Judgment Device> Fig. 2 is a diagram showing an example of a configuration of a risk determination device according to an embodiment of the present disclosure. With reference to Fig. 2, the risk determination device 101 includes a history information acquisition unit 11, a processing unit 12, and a storage unit 13. The processing unit 12 includes a determination unit 21, a creation unit 22, a service information acquisition unit 23, a notification unit 24, a notification information acquisition unit 25, and a return information acquisition unit 26. One or both of the history information acquisition unit 11 and the processing unit 12 are realized, for example, by a processing circuit including one or more processors. The storage unit 13 is, for example, a non-volatile memory included in the processing circuit.

[0051] (History information acquisition section) The history information acquisition unit 11 acquires history information indicating the behavior history of the driver of the vehicle 1, a vehicle ID, and a driver ID.

[0052] More specifically, for example, the history information indicates vehicle coordinates, measurement results of various sensors indicating the driver's operations, and images captured by a camera while the vehicle 1 is running or stopped. That is, the history information is, for example, time-series vehicle information acquired by the in-vehicle device 201 while the vehicle 1 is running or stopped.

[0053] When the history information acquisition unit 11 receives the vehicle information group from the in-vehicle device 201, it acquires the history information included in the received vehicle information group, and also acquires the vehicle ID and the driver ID included in the vehicle information group.

[0054] For example, the storage unit 13 stores a history table Tb1 indicating the correspondence between a vehicle ID, an acquisition time, a driver ID, and history information. In an initial state, the acquisition time, the driver ID, and the history information corresponding to the vehicle ID are not registered in the history table Tb1.

[0055] Every time the history information acquisition unit 11 receives a set of vehicle information from the in-vehicle device 201, it updates the history table Tb1.

[0056] Specifically, for example, when the history information acquisition unit 11 receives a vehicle information group from the in-vehicle device 201, it reads out the history table Tb1 in the storage unit 13. Then, the history information acquisition unit 11 registers the acquired history information, the vehicle ID, and the driver ID in association with each other for each acquisition time included in the received vehicle information group in the history table Tb1.

[0057] FIG. 3 is a diagram illustrating an example of a history table stored by the risk determination device according to the embodiment of the present disclosure.

[0058] 3, for vehicle 1 with vehicle ID "V1" driven by a driver with driver ID "D1", the latitude of the vehicle coordinates at acquisition time t1 is "L11" and the longitude is "L21". At acquisition time t1, the vehicle speed is "50km / h", the position of the shift lever is drive "D", the engine speed is "2000rpm", the hazard lamps are "off", and the blinkers are "off". The image captured at acquisition time t1 is "G1".

[0059] In vehicle 1 with vehicle ID "V1" driven by a driver with driver ID "D1", the latitude of the vehicle coordinates at acquisition time t2 is "L12" and the longitude is "L22". At acquisition time t2, the vehicle speed is "80km / h", the position of the shift lever is drive "D", the engine speed is "4000rpm", the hazard lamps are "off", and the blinkers are "off". The image captured at acquisition time t2 is "G2".

[0060] In vehicle 1 with vehicle ID "V1" driven by a driver with driver ID "D1", the latitude of the vehicle coordinates at acquisition time t3 is "L13" and the longitude is "L23". At acquisition time t3, the vehicle speed is "100km / h", the position of the shift lever is drive "D", the engine speed is "8000rpm", the hazard lamps are "on", and the blinkers are "on". The image captured at acquisition time t3 is "G3".

[0061] When the history information acquisition unit 11 updates the history table Tb1, it outputs an update completion notification R1 to the judgment unit 21 and the creation unit 22, indicating that the history table Tb1 has been updated and indicating multiple acquisition times included in the vehicle information group received from the in-vehicle device 201.

[0062] (Facility table) FIG. 4 is a diagram illustrating an example of a facility table stored in the risk determination device according to the embodiment of the present disclosure.

[0063] 2 and 4, the storage unit 13 further stores a facility table Tb2. The facility table Tb2 indicates a correspondence relationship between identification information for identifying a facility (hereinafter also referred to as a "facility ID"), the name of the facility, the attribute of the facility, the purpose of use of the facility, and the location coordinates of the facility. The facility table Tb2 is, for example, registered in advance in the storage unit 13 by a user.

[0064] In facility table Tb2, the facility name corresponding to facility ID "001" is "GGG", the facility attribute is "commercial facility", the purpose of use is "shopping", and the latitude and longitude of the location coordinates are "L71" and "L81", respectively. The facility name corresponding to facility ID "002" is "HHH", the facility attribute is "hospital", the purpose of use is "visiting the hospital", and the latitude and longitude of the location coordinates are "L72" and "L82", respectively. The facility name corresponding to facility ID "003" is "JJJ", the facility attribute is "office", the purpose of use is "work", and the latitude and longitude of the location coordinates are "L73" and "L83", respectively.

[0065] (Creation Department) The creation unit 22 updates the pattern table Tb3 indicating the driver's behavioral patterns related to driving, based on the historical information acquired by the historical information acquisition unit 11.

[0066] More specifically, for example, the pattern table Tb3 indicates the correspondence relationship between the driver ID, the purpose of driving the vehicle 1 (hereinafter also referred to as "driving purpose"), the destination of the vehicle 1, and destination coordinates indicating the position of the destination. The destination coordinates are expressed by, for example, latitude and longitude. In the initial state, the driving purpose, destination, and destination coordinates corresponding to the driver ID are not registered in the pattern table Tb3.

[0067] When a designated update timing, for example, a predetermined time every day, arrives, the creation unit 22 performs an estimation process using the history table Tb1 in the storage unit 13 to estimate the destination of the vehicle 1 for each driver ID.

[0068] Specifically, for example, when an update timing arrives, the creation unit 22 reads out the history table Tb1 in the storage unit 13. Then, the creation unit 22 checks a plurality of acquisition times that belong to the period from 24 hours before the update timing to the update timing by referring to the history table Tb1.

[0069] If the difference between a certain acquisition time t1 among the multiple acquisition times confirmed and an acquisition time t2 that is a time subsequent to the acquisition time t1 and successive to the acquisition time t1 is greater than a predetermined threshold value Th10, the creation unit 22 estimates the location information corresponding to the acquisition time t2, i.e., the vehicle coordinates, as the destination in the estimation process.

[0070] When the creation unit 22 estimates the destination of the vehicle 1, it reads out the facility table Tb2 in the storage unit 13. Then, by referring to the facility table Tb2, the creation unit 22 identifies the attributes and purpose of use of the facility corresponding to the estimated destination, i.e., the same position coordinates as the vehicle coordinates at the acquisition time t2 shown in the history table Tb1, as the attributes of the destination and the driving purpose.

[0071] When the creation unit 22 specifies the attributes of the destination and the driving purpose, the creation unit 22 reads out the pattern table Tb3 in the storage unit 13. Then, the creation unit 22 registers the specified attributes of the destination and the driving purpose, as well as destination coordinates that are vehicle coordinates indicating the estimated destination, in the pattern table Tb3 in association with the driver ID.

[0072] FIG. 5 is a diagram illustrating an example of an updated pattern table stored in the risk determination device according to the embodiment of the present disclosure.

[0073] 5, in the updated pattern table Tb3, a driver with a driver ID of "D1" drives the vehicle 1 to a destination "commercial facility" at latitude "L71" and longitude "L81" for "shopping." The driver also drives the vehicle 1 to a destination "hospital" at latitude "L72" and longitude "L82" for "visiting the doctor." The driver also drives the vehicle 1 to a destination "office" at latitude "L73" and longitude "L83" for "work."

[0074] (Judgment Department) The judgment unit 21 performs a judgment process to judge the danger of the driver's driving of the vehicle 1, that is, the potential risk, based on the history information acquired by the history information acquisition unit 11.

[0075] More specifically, for example, each time the judgment unit 21 receives an update completion notification R1 from the history information acquisition unit 11, it determines in the judgment process the type of danger that occurred due to driving by the target driver and the acquisition time at which the danger occurred (hereinafter also referred to as the ``occurrence time tr'').

[0076] <Excess speed> For example, in the determination process, the determination unit 21 determines the risk of speeding while driving.

[0077] Specifically, for example, the storage unit 13 stores identification information (hereinafter also referred to as "road ID") for identifying the road on which the vehicle 1 travels, i.e., the link, and a road table Tb4 indicating the correspondence between road coordinates indicating the location of the road, speed limit, road type, road name, and azimuth angle of the road. The road coordinates are composed of a plurality of coordinates represented by latitude and longitude, for example. The road table Tb4 is registered in advance in the storage unit 13 by, for example, a user.

[0078] FIG. 6 is a diagram illustrating an example of a road table stored in the risk determination device according to the embodiment of the present disclosure.

[0079] 6, in the road table Tb4, the road coordinates corresponding to the road ID "W1" are coordinates from "L31, L41" to "L35 to L45", the speed limit is "30 km / h", the type is "general road", the name is "ABC", and the azimuth angle is "120 degrees". The road coordinates corresponding to the road ID "W2" are coordinates from "L36, L46" to "L39, L49", the speed limit is "60 km / h", the type is "general road", the name is "DEF", and the azimuth angle is "120 degrees".

[0080] When the determination unit 21 receives the update completion notification R1 from the history information acquisition unit 11, the determination unit 21 reads out the history table Tb1 and the road table Tb4 from the storage unit 13. Then, the determination unit 21 refers to the history table Tb1 to identify a plurality of pieces of position information, i.e., a plurality of vehicle coordinates, that respectively correspond to a plurality of acquisition times indicated in the update completion notification R1.

[0081] When the determination unit 21 identifies a plurality of vehicle coordinates, the determination unit 21 refers to the road table Tb4 to check, for each identified vehicle coordinate, the speed limit corresponding to the road coordinate including the coordinate closest to the identified vehicle coordinate.

[0082] When the determination unit 21 checks the speed limit for each identified vehicle coordinate, in a determination process, it checks whether the vehicle speed at the acquisition time corresponding to the position information is higher than the speed limit. If the vehicle speed is higher than the identified speed limit, the determination unit 21 determines that there is a risk of speeding and determines that the acquisition time is the occurrence time tr. On the other hand, if the vehicle speed is equal to or lower than the identified speed limit, the determination unit 21 determines that there is no risk of speeding.

[0083] <Vehicle speed instability> 2 and 3 again, for example, in the determination process, the determination unit 21 determines the risk of a phenomenon in which the vehicle speed becomes unstable during driving (hereinafter, also referred to as "unstable vehicle speed").

[0084] More specifically, for example, when the determination unit 21 receives an update completion notification R1 from the history information acquisition unit 11, the determination unit 21 reads out the history table Tb1. Then, the determination unit 21 identifies a plurality of vehicle speeds corresponding to a plurality of acquisition times indicated in the update completion notification R1 by referring to the history table Tb1.

[0085] When the judgment unit 21 identifies multiple vehicle speeds, it calculates the acceleration B1 of the vehicle 1 at the acquisition time t1 based on the vehicle speed at an acquisition time t1, which is one of the multiple acquisition times indicated in the update completion notification R1, and the vehicle speed at an acquisition time t2, which is a time prior to the acquisition time t1 and subsequent to the acquisition time t1.

[0086] Also, for example, the determination unit 21 calculates the acceleration B2 of the vehicle 1 at the acquisition time t2 based on the vehicle speed at the acquisition time t2 and the vehicle speed at an acquisition time t3 that is prior to the acquisition time t2 and follows the acquisition time t2.

[0087] Then, in the determination process, the determination unit 21 checks whether the sign of the acceleration B2 is different from the sign of the acceleration B1.

[0088] When the sign of acceleration B2 is different from that of acceleration B1, the determination unit 21 determines that there is a risk of unstable vehicle speed and determines the corresponding acquisition time, for example, acquisition time t1, as the occurrence time tr. On the other hand, when the sign of acceleration B2 is the same as that of acceleration B1, the determination unit 21 determines that there is no risk of unstable vehicle speed.

[0089] <Reverse driving> 2, 3 and 6 again, for example, the determination unit 21 determines the risk of the vehicle 1 running in the wrong direction in the determination process.

[0090] More specifically, for example, when the determination unit 21 receives an update completion notification R1 from the history information acquisition unit 11, the determination unit 21 reads out the history table Tb1 in the storage unit 13. Then, the determination unit 21 refers to the history table Tb1 to identify a plurality of pieces of location information corresponding to a plurality of acquisition times indicated by the update completion notification R1.

[0091] When the judgment unit 21 identifies multiple pieces of location information, it calculates the azimuth angle of the vehicle 1 at the acquisition time t4 (hereinafter also referred to as the "vehicle azimuth angle") based on the vehicle coordinate P4 corresponding to an acquisition time t4, which is a certain acquisition time among the multiple acquisition times indicated in the update completion notification R1, and the vehicle coordinate P5 corresponding to another acquisition time t5 that is consecutive to the acquisition time t4.

[0092] After calculating the vehicle azimuth angle, the judgment unit 21 reads out the road table Tb4 in the storage unit 13. Then, by referring to the road table Tb4, the judgment unit 21 specifies the azimuth angle of the road corresponding to the road coordinate including the coordinate closest to the vehicle coordinate P4, and in the judgment process, checks whether the absolute value of the difference between the azimuth angle of the specified road and the calculated vehicle azimuth angle is greater than a predetermined threshold value Th1.

[0093] When the absolute value of the difference between the azimuth angle of the identified road and the calculated vehicle azimuth angle is greater than the threshold value Th1, the determination unit 21 determines that there is a risk of wrong-way driving and determines the corresponding acquisition time, for example, acquisition time t4, as the occurrence time tr. On the other hand, when the absolute value is less than the threshold value Th1, the determination unit 21 determines that there is no risk of wrong-way driving.

[0094] <Deviation> For example, in the determination process, the determination unit 21 makes a determination regarding the risk of a phenomenon in which the vehicle deviates from the road while driving (hereinafter, also referred to as "deviation").

[0095] More specifically, for example, when the determination unit 21 receives an update completion notification R1 from the history information acquisition unit 11, the determination unit 21 reads out the history table Tb1 and the road table Tb4 in the storage unit 13. Then, the determination unit 21 refers to the history table Tb1 to identify a plurality of vehicle coordinates corresponding to a plurality of acquisition times indicated in the update completion notification R1.

[0096] When the determination unit 21 identifies a plurality of vehicle coordinates, the determination unit 21 refers to the road table Tb4 to identify a road coordinate group including coordinates closest to the vehicle coordinates for each piece of position information, and calculates a distance Y between each of the coordinates included in the identified road coordinate group and the vehicle coordinates.

[0097] The determination unit 21 checks whether or not at least one of the calculated distances Y is greater than a predetermined threshold value Th2.

[0098] When at least one of the calculated distances Y is greater than the threshold Th2, the determination unit 21 determines that there is a risk of departure and determines the corresponding acquisition time as the occurrence time tr. On the other hand, when all of the calculated distances Y are less than the threshold Th2, the determination unit 21 determines that there is no risk of departure.

[0099] <Meandering> For example, in the judgment process, the judgment unit 21 judges the risk of meandering. More specifically, for example, when the judgment unit 21 receives an update completion notification R1 from the history information acquisition unit 11, the judgment unit 21 reads out the history table Tb1 in the storage unit 13. Then, by referring to the history table Tb1, the judgment unit 21 identifies a plurality of pieces of position information corresponding to a plurality of acquisition times indicated by the update completion notification R1, and calculates the vehicle azimuth for each acquisition time by a method similar to the process of calculating the vehicle azimuth described above. That is, the judgment unit 21 creates time-series vehicle azimuth data indicating a time-series change in the vehicle azimuth.

[0100] Then, the judgment unit 21 checks whether or not the positive / negative sign F1 of the vehicle azimuth angle at a certain acquisition time differs from the positive / negative sign F2 of the vehicle azimuth angle at another acquisition time subsequent to the aforementioned acquisition time in the created time-series vehicle azimuth angle data.

[0101] When the positive / negative sign F1 and the positive / negative sign F2 are different, the judgment unit 21 judges that there is a risk of meandering and judges the corresponding acquisition time as the occurrence time tr. On the other hand, when the positive / negative sign F1 and the positive / negative sign F2 are the same, the judgment unit 21 judges that there is no risk of meandering.

[0102] <Lost driving> For example, in the determination process, the determination unit 21 makes a determination regarding the risk of the driver getting lost while driving (hereinafter, also referred to as "lost driving").

[0103] More specifically, for example, the history information acquiring unit 11, in addition to updating the history table Tb1, calculates an actual measurement value of the time required for the driver to drive the vehicle 1 from the first point Q1 to the second point Q2, based on the vehicle information group from the in-vehicle device 201. Note that the descriptions "first" and "second" do not mean a priority order.

[0104] Specifically, for example, the storage unit 13 further stores a point list indicating the coordinates of a first point Q1 and the coordinates of a second point Q2.

[0105] When the history information acquisition unit 11 receives a group of vehicle information from the in-vehicle device 201, it checks whether the multiple pieces of location information contained in the group of vehicle information include location information P11 indicating vehicle coordinates that are the same as the coordinates of a first point Q1 indicated in the location list, and location information P12 indicating vehicle coordinates that are the same as the coordinates of a second point Q2 indicated in the location list.

[0106] When location information P11 and P12 are included among multiple location information contained in a group of vehicle information from the in-vehicle device 201, the history information acquisition unit 11 identifies the acquisition time t11 corresponding to the location information P11 and the acquisition time t12 corresponding to the location information P12.

[0107] When the history information acquisition unit 11 identifies the acquisition times t11 and t12, it calculates a value obtained by subtracting the acquisition time t11 from the acquisition time t12 as the actual measurement value N1 of the required time. Then, the history information acquisition unit 11 outputs the calculated actual measurement value N1 to the determination unit 21 together with the update completion notification R1.

[0108] The storage unit 13 further stores an estimated value N2 of the travel time required for the vehicle 1 to travel from the first point Q1 to the second point Q2.

[0109] For example, the determination unit 21 performs a determination process regarding the risk of lost driving based on the actual measurement value N1 calculated by the history information acquisition unit 11 and the estimated value N2 stored in the storage unit 13.

[0110] Specifically, for example, when the judgment unit 21 receives an update completion notification R1 from the history information acquisition unit 11, it checks whether the difference between the actual measured value N1 included in the update completion notification R1 and the estimated value N2 stored in the memory unit 13 is greater than a predetermined threshold value Th3.

[0111] When the difference between the actual measurement value N1 and the estimated value N2 is greater than the threshold value Th3, the determination unit 21 determines that there is a risk of lost driving and determines the corresponding acquisition time, for example, acquisition time t11, as the occurrence time tr. On the other hand, when the difference between the actual measurement value N1 and the estimated value N2 is less than the threshold value Th3, the determination unit 21 determines that there is no risk of lost driving.

[0112] <Unnatural driving> For example, in the determination process, the determination unit 21 makes a determination regarding the risk of the driver heading to an unintended location (hereinafter, also referred to as "unnatural driving").

[0113] More specifically, for example, the history information acquisition unit 11 acquires history information including first position information indicating a history of the position of the vehicle 1 when the driver drives the vehicle 1 in a first period, and second position information indicating a history of the position of the vehicle 1 when the driver drives the vehicle 1 in a second period after the first period. Upon acquiring the history information, the history information acquisition unit 11 updates the history table Tb1 in the storage unit 13.

[0114] For example, the determination unit 21 performs a determination process regarding the risk of reckless driving based on the first location information and the second location information acquired by the history information acquisition unit 11.

[0115] Specifically, for example, when the determination unit 21 receives the update completion notification R1 from the history information acquisition unit 11, the determination unit 21 estimates the destination of the vehicle 1 in the same manner as the estimation process by the creation unit 22 described above.

[0116] When the determination unit 21 estimates the destination, it reads out the pattern table Tb3 in the storage unit 13. Then, the determination unit 21 refers to the pattern table Tb3 to check whether the estimated destination is registered in the pattern table Tb3.

[0117] When the estimated destination is not registered in the pattern table Tb3, the judgment unit 21 judges that there is a risk of reckless driving and judges the corresponding acquisition time as the occurrence time tr. On the other hand, when the estimated destination is registered in the pattern table Tb3, the judgment unit 21 judges that there is no risk of reckless driving.

[0118] <Misstepping on the accelerator> 2 and 3 again, for example, in the determination process, the determination unit 21 determines whether there is a risk of accidentally depressing the accelerator pedal while the vehicle 1 is stopped.

[0119] More specifically, for example, the history information acquisition unit 11 acquires history information including a history of the position of the shift lever of the vehicle 1 and a history of the engine speed while the vehicle 1 is stopped. When the history information acquisition unit 11 acquires the history information, it updates the history table Tb1 in the storage unit 13.

[0120] For example, the determination unit 21 performs a determination process regarding the risk of erroneous accelerator depression based on the history of the shift lever position and the history of the engine speed, which are included in the history information acquired by the history information acquisition unit 11.

[0121] Specifically, for example, in the determination process, the determination unit 21 checks whether or not the history of the shift lever position and the history of the engine speed included in the history information acquired by the history information acquisition unit 11 satisfy a predetermined condition C1.

[0122] In this embodiment, for example, the predetermined condition C1 is that the position of the shift lever is neutral N and the engine speed is 2000 rpm or higher while the vehicle 1 is stopped.

[0123] Specifically, for example, when the determination unit 21 receives an update completion notification R1 from the history information acquisition unit 11, the determination unit 21 reads out the history table Tb1 in the storage unit 13. Then, the determination unit 21 refers to the history table Tb1 to identify a plurality of pieces of measurement information corresponding to the plurality of acquisition times indicated by the update completion notification R1.

[0124] Then, the determination unit 21 checks whether or not the position of the shift lever and the engine speed satisfy a predetermined condition C1 for each piece of the identified measurement information.

[0125] When the shift lever position and engine speed indicated by at least one of the identified measurement information satisfy the predetermined condition C1, the determination unit 21 determines that there is a risk of accelerator misapplication and determines the corresponding acquisition time as the occurrence time tr. On the other hand, when the shift lever position and engine speed indicated by each of the identified measurement information do not satisfy the predetermined condition C1, the determination unit 21 determines that there is no risk of accelerator misapplication.

[0126] <Operation error> For example, in the determination process, the determination unit 21 makes a determination regarding an error in operating the hazard lamps and the winkers by the driver.

[0127] More specifically, for example, the history information acquisition unit 11 acquires history information including the illumination history of the hazard lamps of the vehicle 1 and the operation history of the turn signal lever of the vehicle 1. When acquiring the history information, the history information acquisition unit 11 updates the history table Tb1 in the storage unit 13.

[0128] For example, the judgment unit 21 performs judgment processing regarding erroneous operation of the hazard lamps and the turn signal lever by the driver based on the hazard lamp illumination history and the turn signal lever operation history included in the historical information acquired by the historical information acquisition unit 11.

[0129] Specifically, for example, in the determination process, the determination unit 21 checks whether the hazard lamp illumination history and the turn signal lever operation history included in the history information acquired by the history information acquisition unit 11 satisfy a predetermined condition C2.

[0130] In this embodiment, for example, the predetermined condition C2 is that the hazard lamps are on and the turn signals are operating at a certain acquisition time.

[0131] Specifically, for example, when the determination unit 21 receives an update completion notification R1 from the history information acquisition unit 11, the determination unit 21 reads out the history table Tb1. Then, the determination unit 21 identifies a plurality of pieces of measurement information corresponding to a plurality of acquisition times indicated by the update completion notification R1 by referring to the history table Tb1.

[0132] Then, for each piece of the identified measurement information, the determination unit 21 checks whether or not the illumination history of the hazard lamps and the operation history of the turn signals satisfy a predetermined condition C2.

[0133] When the hazard lamp illumination history and the turn signal operation history indicated by at least one of the identified measurement information satisfy a predetermined condition C2, the determination unit 21 determines that there is a risk of an operational error and determines the corresponding acquisition time as the occurrence time tr. On the other hand, when the hazard lamp illumination history and the turn signal operation history indicated by each of the identified measurement information do not satisfy the predetermined condition C2, the determination unit 21 determines that there is no risk of an operational error.

[0134] Also, for example, in the determination process, the determination unit 21 makes a determination regarding an operation error of a hazard lamp while the vehicle 1 is traveling.

[0135] More specifically, for example, the history information acquisition unit 11 acquires history information including a history of hazard lamp illumination of the vehicle 1 while the vehicle 1 is traveling and a history of the speed of the vehicle 1. When acquiring the history information, the history information acquisition unit 11 updates the history table Tb1 in the storage unit 13.

[0136] For example, the determination unit 21 performs a determination process regarding an operation error of the hazard lamps based on the illumination history of the hazard lamps and the history of the speed of the vehicle 1 included in the history information acquired by the history information acquisition unit 11.

[0137] Specifically, for example, in the determination process, the determination unit 21 checks whether or not the hazard lamp illumination history and the vehicle speed history included in the history information acquired by the history information acquisition unit 11 satisfy a predetermined condition C3.

[0138] In this embodiment, for example, the predetermined condition C3 is that the hazard lamps are turned on and the vehicle speed is equal to or greater than a predetermined threshold value Th4.

[0139] Specifically, for example, when the determination unit 21 receives an update completion notification R1 from the history information acquisition unit 11, the determination unit 21 reads out the history table Tb1 in the storage unit 13. Then, the determination unit 21 refers to the history table Tb1 to identify a plurality of pieces of measurement information corresponding to the plurality of acquisition times indicated by the update completion notification R1.

[0140] Then, the judgment unit 21 checks whether or not each of the identified measurement information satisfies a predetermined condition C3.

[0141] When the hazard lamp illumination history and the vehicle speed indicated by at least one of the plurality of pieces of measurement information among the identified pieces of measurement information satisfy the predetermined condition C3, the judgment unit 21 judges that there is a risk of an operation error and judges the corresponding acquisition time as the occurrence time tr. On the other hand, when the hazard lamp illumination history and the vehicle speed indicated by each piece of the identified measurement information do not satisfy the predetermined condition C3, the judgment unit 21 judges that there is no risk of an operation error.

[0142] <Risk table> For example, the storage unit 13 stores a risk table Tb5 indicating the correspondence between a vehicle ID, a driver ID, an occurrence time tr, a type of risk, location information, speed information indicating the speed of the vehicle 1, and image information. In an initial state, the driver ID, the occurrence time tr, the type of risk, location information, speed information, and image information corresponding to the vehicle ID are not registered in the risk table Tb5.

[0143] When the determination unit 21 determines in the determination process that the driving of the vehicle 1 by the driver is dangerous, it updates the danger table Tb5.

[0144] More specifically, for example, if the judgment unit 21 judges in the judgment process that the driver's driving of the vehicle 1 is dangerous, it refers to the history table Tb1 shown in Figure 3 to identify the vehicle ID, driver ID, position information, speed information and image information corresponding to the occurrence time tr judged in the judgment process.

[0145] When the determination unit 21 identifies the vehicle ID, driver ID, position information, speed information, and image information corresponding to the occurrence time tr, it reads out a risk table Tb5 in the storage unit 13. Then, the determination unit 21 registers in the risk table Tb5 the identified vehicle ID, driver ID, position information, speed information, and image information in association with the type of risk determined in the determination process and the occurrence time tr.

[0146] FIG. 7 is a diagram illustrating an example of a risk table created by the risk determination device according to the embodiment of the present disclosure.

[0147] 7, in the risk table Tb5, a driver who drives a vehicle 1 with a vehicle ID of "V1" and has a driver ID of "D1" is at risk of "speeding" at the occurrence time "t3", and the latitude and longitude of the vehicle coordinates corresponding to the occurrence time "t3" are "L13" and "L23", respectively, the vehicle speed is "100 km / h", and the image information is "G3". In addition, the driver is at risk of "running in the wrong direction" at the occurrence time "t2", and the latitude and longitude of the vehicle coordinates corresponding to the occurrence time "t2" are "L12" and "L22", respectively, the vehicle speed is "80 km / h", and the image information is "G2".

[0148] When the determination unit 21 updates the risk table Tb5, the determination unit 21 notifies the service information acquisition unit 23 and the notification unit 24 of the driver ID corresponding to the type of risk determined in the determination process.

[0149] (Service information acquisition unit) For example, the service information acquisition unit 23 acquires service information indicating services that can be provided when the driver is not driving the vehicle 1.

[0150] FIG. 8 is a diagram illustrating an example of a service provision table stored by the risk determination device according to the embodiment of the present disclosure.

[0151] 2 and 8, the storage unit 13 further stores a service provision table Tb6. The service provision table Tb6 indicates the correspondence between identification information for identifying a service provider (hereinafter also referred to as a "provider ID") and service information. The service provision table Tb6 is registered in the storage unit 13 in advance by, for example, a user.

[0152] In the service provision table Tb6, the service information corresponding to the provider ID "S1" includes the service purpose "shopping", the service content "door-to-door sales", the name of the person in charge "DDD", the URL (Uniform Resource Locator) of the site providing the service, and the service provision range "range A1". The service information corresponding to the provider ID "S2" includes the service purpose "shopping", the service content "clothing sales", the name of the person in charge "EEE", the URL of the site providing the service, and the service provision range "range A2". The service information corresponding to the provider ID "S3" includes the service purpose "hospital visit", the service content "online medical treatment", the name of the person in charge "FFF", the URL of the site providing the service, and the service provision range "range A3".

[0153] When the service information acquisition unit 23 receives the notification from the determination unit 21, it reads out the pattern table Tb3 and the service provision table Tb6 in the storage unit 13. Then, the service information acquisition unit 23 refers to the pattern table Tb3 to identify one or more driving purposes corresponding to the driver ID notified from the determination unit 21. Here, the service information acquisition unit 23 identifies one driving purpose.

[0154] When the service information acquisition unit 23 identifies the driving purpose, the service information acquisition unit 23 identifies service information including the same purpose as the driving purpose by referring to the service provision table Tb6. Then, the service information acquisition unit 23 outputs the identified service information to the notification unit 24.

[0155] (Notification Department) For example, when the determination unit 21 determines that the driver's driving of the vehicle 1 is dangerous in the determination process, the notification unit 24 performs a risk notification process of notifying a first notification destination other than the driver of risk information indicating the determination result, and also performs a service notification process of notifying a second notification destination other than the driver of service information acquired by the service information acquisition unit 23. In this embodiment, the first notification destination and the second notification destination are the same notification destination U1.

[0156] More specifically, for example, the risk information indicates that the notification destination U1 is requested to prompt the driver to surrender the license of the vehicle 1. The risk information is registered in advance in the storage unit 13 by, for example, the user.

[0157] When the notification unit 24 receives a notification from the determination unit 21 and also receives service information from the service information acquisition unit 23 , it acquires risk information from the storage unit 13 .

[0158] The storage unit 13 further stores a notification table Tb7 indicating the correspondence between the driver ID and information on the notification destination (hereinafter also referred to as "notification destination information"). The notification table Tb7 is, for example, registered in advance in the storage unit 13 by a user. The notification table Tb7 is an example of correspondence information.

[0159] FIG. 9 is a diagram illustrating an example of a notification table stored in the risk determination device according to the embodiment of the present disclosure.

[0160] 9, in the notification table Tb7, the notification destination information corresponding to the driver ID "D1" includes the notification destination attribute "child", the notification destination name "AAA", and a telephone number and email address as contact information. The notification destination information corresponding to the driver ID "D2" includes the notification destination attribute "city hall employee", the notification destination name "BBB", and a telephone number and email address as contact information. The notification destination information corresponding to the driver ID "D3" includes the notification destination attribute "doctor", the notification destination name "CCC", and a telephone number and email address as contact information.

[0161] 2 again, for example, the notification information acquisition unit 25 acquires a notification table Tb7. The notification unit 24 performs a risk notification process and a service notification process to the notification destination U1 corresponding to the driver ID acquired by the history information acquisition unit 11 based on the notification table Tb7 acquired by the notification information acquisition unit 25.

[0162] More specifically, for example, when the notification unit 24 receives a notification from the determination unit 21 and also receives service information from the service information acquisition unit 23, it notifies the notification information acquisition unit 25 of the driver ID notified by the determination unit 21.

[0163] When the notification information acquisition unit 25 receives a notification from the notification unit 24, it reads out the notification table Tb7. Then, the notification information acquisition unit 25 refers to the notification table Tb7 to identify notification destination information corresponding to the driver ID indicated by the notification, and outputs the identified notification destination information to the notification unit 24.

[0164] For example, when notification unit 24 receives notification destination information from notification information acquisition unit 25, it checks the email address indicated by the contact included in the notification destination information. Notification unit 24 sends an HTML (HyperText Markup Language) format email containing the created risk information and service information from service information acquisition unit 23 to the email address as the destination.

[0165] (Return Information Acquisition Department) For example, the license return information acquisition unit 26 acquires license return information indicating that the driver has returned the license and that the notification destination U1 of risk information and service information has urged the driver to return the license.

[0166] More specifically, for example, the notification destination U1 performs an operation on a terminal device carried by the notification destination U1 to input information indicating that the driver has completed surrendering the license and that the notification destination U1 has urged the driver to surrender the license.

[0167] The terminal device transmits the return information to the risk determination device 101 via the external network 151 based on, for example, an input operation by the notification destination U1 to itself.

[0168] When the return information acquisition unit 26 in the risk determination device 101 acquires the return information, it outputs to the notification unit 24 a notification indicating that the return information has been acquired.

[0169] For example, when the return information is acquired by the return information acquisition unit 26, the notification unit 24 issues a reward request notification to a notification destination other than the notification destination U1 to request the notification destination U1 to grant a reward.

[0170] More specifically, for example, upon receiving a notification from the return information acquisition unit 26, the notification unit 24 transmits a reward request notification to a predetermined terminal device.

[0171] Specifically, for example, the notification unit 24 transmits a reward request notification to a terminal device installed in a government office in the residential area where the notification destination U1 resides. In this case, the notification unit 24 requests in the reward request notification that points that can be used for cashless payment be given as reward to an IC card such as a My Number card held by the notification destination U1.

[0172] [Operation flow] 10 is a flowchart that defines an operation procedure when the risk determination device according to the embodiment of the present disclosure performs risk notification processing. FIG. 10 representatively illustrates processing when the risk determination device 101 performs risk notification processing when receiving a group of vehicle information from one vehicle-mounted device.

[0173] 10, first, the risk determination device 101 receives a group of vehicle information from the in-vehicle device 201 (step S101).

[0174] Next, the risk determination device 101 uses the received vehicle information group to update the history table Tb1 in the storage unit 13. For example, as described above, the risk determination device 101 registers the acquired history information, vehicle ID, and driver ID in association with each other for each acquisition time included in the received vehicle information group in the history table Tb1 (step S102).

[0175] The risk determination device 101 receives new vehicle information groups from the in-vehicle device 201 (step S101) until the designated update timing arrives (NO in step S103), and updates the history table Tb1 using the new vehicle information groups (step S102).

[0176] Next, when the update timing arrives (YES in step S103), the risk determination device 101 uses the updated history table Tb1 to update the pattern table Tb3 indicating the driver's driving behavior pattern. For example, as described above, the risk determination device 101 estimates the destination of the vehicle 1 using the updated history table Tb1, and identifies the attributes of the destination and the driver's driving purpose using the facility table Tb2. Then, the risk determination device 101 registers the driver ID, the attributes of the identified destination, the driver's driving purpose, and the destination coordinates indicating the position of the destination in the pattern table Tb3 in the storage unit 13 in association with the driver ID (step S104).

[0177] Next, the risk determination device 101 performs a determination process for determining the risk of the driver driving the vehicle 1 for each driver ID (step S105).

[0178] Next, when the risk determination device 101 determines in the determination process that the driver's driving of the vehicle 1 is dangerous (YES in step S106), it acquires service information that can be provided when the driver does not drive the vehicle 1. For example, as described above, the risk determination device 101 acquires the service information by referring to the pattern table Tb3 and the service provision table Tb6 in the storage unit 13 (step S107).

[0179] Next, the risk determination device 101 notifies the notification destination U1, which is different from the driver, of risk information indicating the determination result in the determination process and the acquired service information. For example, as described above, the risk determination device 101 identifies the contact information of the notification destination U1 corresponding to the driver ID by referring to the notification table Tb7 in the storage unit 13. Then, the risk determination device 101 notifies the identified contact information of the risk destination information and the service information (step S108).

[0180] Next, the risk determination device 101 waits until it acquires surrender information indicating that the driver has surrendered the license and that the notification destination U1 has urged the driver to surrender the license (NO in step S109).

[0181] Next, when the risk determination device 101 acquires the return information (YES in step S109), it sends a reward request notification to the notification destination U1 to request the granting of a predetermined reward (step S110).

[0182] On the other hand, if the risk judgment device 101 makes a negative judgment regarding the risk of the driver driving the vehicle 1 in the judgment process (NO in step S106), it stores the new vehicle information group received from the in-vehicle device 201 in the memory unit 13 (step S101).

[0183] When the risk determination device 101 receives a group of vehicle information from a plurality of in-vehicle devices 201, the risk determination device 101 may be configured to perform the processes shown in FIG. 10 for each driver ID.

[0184] In the risk determination system 501 according to the embodiment of the present disclosure, the risk determination device 101 is configured to notify the notification destination U1 of risk information indicating a request to the notification destination U1 to encourage the driver to return the license, but this is not limited to this. For example, the risk determination device 101 may be configured to notify the notification destination U1 of risk information indicating the type of risk determined in the determination process.

[0185] In the risk determination system 501 according to the embodiment of the present disclosure, the risk determination device 101 is configured to perform risk notification processing and service notification processing when it is determined in the determination processing that the driver's driving of the vehicle 1 is dangerous, but this is not limited thereto. The risk determination device 101 may be configured not to perform service notification processing.

[0186] In the risk determination system 501 according to the embodiment of the present disclosure, the risk determination device 101 is configured to notify the risk information and the service information to the same notification destination U1, but this is not limited to this. The risk determination device 101 may be configured to notify the risk information and the service information to different notification destinations.

[0187] In the risk determination system 501 according to the embodiment of the present disclosure, the risk determination device 101 is configured to perform risk notification processing and service notification processing when it is determined in the determination processing that there is a risk of speeding, etc., but this is not limited to this. The risk determination device 101 may be configured to calculate the probability that the driver will drive in a risky manner, such as speeding, in the determination processing, and perform risk notification processing and service notification processing when the calculated probability is equal to or greater than a predetermined threshold.

[0188] In the risk determination system 501 according to the embodiment of the present disclosure, the risk determination device 101 is configured to determine the risks of speeding, unstable vehicle speed, wrong-way driving, deviation, meandering driving, lost driving, unnatural driving, accelerator misapplication, and operational errors in the determination process, but is not limited thereto. The risk determination device 101 may be configured to determine some of these risks in the determination process. Furthermore, the risk determination device 101 may be configured to determine other risks different from these risks in the determination process.

[0189] In addition, in the risk determination system 501 according to the embodiment of the present disclosure, the risk determination device 101 is configured to perform risk notification processing and service notification processing for the notification destination U1 corresponding to the driver ID acquired from the in-vehicle device 201 based on the notification table Tb7 in the storage unit 13, but is not limited to this. The risk determination device 101 may be configured to perform risk notification processing and service notification processing for a predetermined notification destination regardless of the driver ID.

[0190] In addition, in the risk determination device 101 according to the embodiment of the present disclosure, the risk determination device 101 is configured to send a reward request notification when it acquires return information indicating that the driver has returned the license and that the notification destination U1 has returned the license to the driver, but this is not limited to this. The risk determination device 101 may be configured not to send a reward request notification.

[0191] In addition, some or all of the functions of the risk determination device 101 according to the embodiment of the present disclosure may be provided by cloud computing. That is, the risk determination device 101 according to the embodiment of the present disclosure may be a cloud server configured by a plurality of servers.

[0192] The above-described embodiments should be considered as illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims.

[0193] Each process (each function) of the above-mentioned embodiment is realized by a processing circuit (circuitry) including one or more processors. The above-mentioned processing circuit may be composed of an integrated circuit or the like in which one or more memories, various analog circuits, and various digital circuits are combined in addition to the above-mentioned one or more processors. The above-mentioned one or more memories store programs (instructions) that cause the above-mentioned one or more processors to execute each of the above-mentioned processes. The above-mentioned one or more processors may execute each of the above-mentioned processes according to the programs read from the above-mentioned one or more memories, or may execute each of the above-mentioned processes according to a logic circuit designed in advance to execute each of the above-mentioned processes. The above-mentioned processors may be various processors suitable for computer control, such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), and an ASIC (Application Specific Integrated Circuit). The above-mentioned physically separated processors may execute each of the above-mentioned processes in cooperation with each other. For example, the processors mounted on each of a plurality of physically separated computers may cooperate with each other via a network such as a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, etc. The program may be installed in the memory from an external server device or the like via the network, or may be distributed in a state stored in a recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD-ROM (Digital Versatile Disc Read Only Memory), or a semiconductor memory, and installed in the memory from the recording medium.

[0194] The above description includes the following additional features. [Appendix 1] A risk determination device, A history information acquisition unit that acquires history information indicating a behavior history of a driver of a vehicle; a determination unit that performs a determination process regarding a risk of the driver driving the vehicle based on the history information; a notification unit that performs a risk notification process to notify a first notification destination other than the driver of risk information indicating a judgment result when the driving by the driver is judged to be dangerous in the judgment process, The risk determination device further comprises: a service information acquisition unit that acquires service information indicating the service based on the history information and that can be provided when the driver is not driving the vehicle; when the driving by the driver is determined to be dangerous in the determination process, the notification unit performs the danger notification process and notifies a second notification destination different from the driver of the service information acquired by the service information acquisition unit; The service information acquisition unit acquires the service information based on correspondence information indicating a correspondence relationship between the driver's driving purpose and a destination of the vehicle.

[0195] [Appendix 2] A processing circuit is provided, The processing circuitry includes: Acquire history information indicating a driver's behavior history in the vehicle; performing a determination process for determining a risk of the driver driving the vehicle based on the history information; If the driving by the driver is judged to be dangerous in the judgment process, a risk judgment device performs a risk notification process to notify a first notification destination other than the driver of risk information indicating the judgment result. [Explanation of symbols]

[0196] 1 vehicle 11 History information acquisition unit 12 Processing section 13 Storage section 21 Judgment Department 22 Creation Department 23 Service information acquisition unit 24 Notification Department 25 Notification information acquisition unit 26 Return Information Acquisition Department 101 Danger Judgment Device 151 External Network 201 In-vehicle equipment 501 Risk Judgment System

Claims

1. A history information acquisition unit that acquires history information indicating a behavior history of a driver of a vehicle; a determination unit that performs a determination process regarding a risk of the driver driving the vehicle based on the history information; A danger judgment device comprising a notification unit that performs a danger notification process to notify a first notification destination other than the driver of danger information indicating the judgment result if the driving by the driver is judged to be dangerous in the judgment process.

2. The risk determination device according to claim 1 , wherein the risk information indicates that the first notification destination is to be requested to urge the driver to surrender a license for the vehicle.

3. The risk determination device further comprises: a service information acquisition unit that acquires service information indicating services that can be provided when the driver is not driving the vehicle; The risk determination device according to claim 1 , wherein the notification unit notifies the service information to a second notification destination different from the driver.

4. The risk determination device according to claim 3 , wherein the second notification destination is the same as the first notification destination.

5. The history information includes an actual measurement value of a required time when the driver drives the vehicle from a first point to a second point, 3 . The risk determination device according to claim 1 , wherein the determination unit performs the determination process based on the actual measurement value and an estimate of a required time for the vehicle to travel from the first point to the second point. 4 .

6. The history information includes first position information indicating a history of a position of the vehicle when the driver drives the vehicle in a first period, and second position information indicating a history of a position of the vehicle when the driver drives the vehicle in a second period after the first period, The risk determination device according to claim 1 , wherein the determination unit performs the determination process based on the first location information and the second location information.

7. The history information includes a history of a position of a shift lever of the vehicle while the vehicle is stopped and a history of a rotation speed of a prime mover mounted in the vehicle, 3. The risk determination device according to claim 1, wherein the determination unit performs the determination process based on a history of the position of the shift lever and a history of the number of revolutions.

8. The history information includes a lighting history of a hazard lamp of the vehicle and an operation history of a turn signal lever of the vehicle, The risk determination device according to claim 1 , wherein the determination unit performs the determination process based on the lighting history and the operation history.

9. The history information includes a history of hazard lamp illumination of the vehicle while the vehicle is traveling and a history of the speed of the vehicle, The risk determination device according to claim 1 , wherein the determination unit performs the determination process based on the lighting history and the speed history.

10. The risk determination device further comprises: a correspondence information acquisition unit that acquires correspondence information indicating a correspondence relationship between the driver's identification information and the first notification destination, the history information acquisition unit acquires the history information and the identification information; The risk determination device according to claim 1 , wherein the notification unit performs the risk notification process of notifying the first notification destination corresponding to the identification information of the risk based on the correspondence information.

11. The risk determination device further comprises: a license return information acquisition unit that acquires license return information indicating that the driver has returned the license and that the first notification destination has prompted the driver to return the license; The risk determination device of claim 2, wherein when the return information is acquired by the return information acquisition unit, the notification unit notifies a notification destination other than the first notification destination of a request to grant a reward to the first notification destination.

12. A risk determination method for a risk determination device, comprising: acquiring history information indicating a behavior history of a driver of a vehicle; performing a determination process for determining a risk of the driver driving the vehicle based on the history information; A danger judgment method including a step of performing a danger notification process in which, if the driving by the driver is judged to be dangerous in the step of performing the judgment processing, danger information indicating the judgment result is notified to a first notification destination other than the driver.

13. A risk determination program for use in a risk determination device, Computer, A history information acquisition unit that acquires history information indicating a behavior history of a driver of a vehicle; a determination unit that performs a determination process regarding a risk of the driver driving the vehicle based on the history information; a notification unit that performs a risk notification process to notify a first notification destination other than the driver of risk information indicating a judgment result when the driving by the driver is judged to be dangerous in the judgment process; A risk assessment program to function as a

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