JPWO2020250274A1 - Driving support device and driving support method - Google Patents

Abstract

When the vehicle (1) is parked, the health information acquisition unit (12) acquires health information indicating the health condition of the occupant at the time of parking and at the time of starting after parking. When the place where the vehicle (1) is parked is a manual driving section, the health condition determination unit (13) uses the health information acquired by the health information acquisition unit (12) and compares it with the health condition of the occupant at the time of parking. It is determined whether or not the health condition of the occupant at the time of starting has dropped beyond a predetermined level. When the health condition determination unit (13) determines that the occupant's health condition has fallen beyond a predetermined level, the information providing unit (14) warns the occupant of the deterioration of the health condition.

Description

The present invention relates to a vehicle driving support device and a driving support method.

Among the autonomous driving technologies that drive the vehicle autonomously, there are fully autonomous driving technologies that do not require any driving operation by the occupants under any environment, and autonomous driving is possible under specific environments, but depending on the situation. There is an automatic driving technology that requires manual driving by the occupants. If the vehicle is not a vehicle to which the technology of fully autonomous driving is applied (hereinafter referred to as "fully autonomous driving vehicle"), for example, an autonomous driving road (hereinafter, "autonomous driving section") in which an environment suitable for autonomous driving is prepared. Autonomous driving is performed only on other roads, and manual driving is performed on other roads.

Switching from automatic driving to manual driving is a burden for the occupants. Therefore, a route search device that searches for a route that allows the automatic driving section to continue for as long as possible has been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2018-17641

If the vehicle is not a fully autonomous vehicle, even if the route is searched by the route search device as described above, a route including a road requiring manual driving (hereinafter referred to as "manual driving section") is set. May be done. For example, when a parking place adjacent only to the manual driving section is set as a destination or a waypoint, the route includes the manual driving section. Then, the occupant needs to perform manual driving at least immediately before the vehicle arrives at the parking place and when the vehicle starts from the parking place. However, even if the occupant can manually drive the vehicle up to the parking place, the health condition of the occupant may deteriorate depending on the behavior of the occupant after the vehicle is parked. There is a problem that it is an excessive burden on the occupants to start the vehicle from the parking place by manual driving while the health condition is deteriorated.

The present invention has been made to solve the above-mentioned problems, and provides driving support in consideration of the health condition of the occupant when the occupant parks the vehicle in the parking place and then starts the vehicle. The purpose is to provide the device.

The driving support device according to the present invention has a route setting unit that sets a route on which the vehicle travels and distinguishes between a manual driving section and an automatic driving section of the route, and when the vehicle is parked, when parked and when starting after parking. When the location where the vehicle is parked is a manual driving section, the health information acquisition department that acquires the health information indicating the health condition of the occupant in the above is used, and the health information of the occupant at the time of parking is used. The health condition judgment unit that determines whether or not the occupant's health condition at the time of starting has fallen beyond a predetermined level compared to the condition, and the health condition judgment department that determines whether the occupant's health condition exceeds a predetermined level. It is equipped with an information providing unit that warns the occupants of the deterioration of their health condition when it is determined that the vehicle has dropped.

According to the present invention, when the vehicle is parked in the manual driving section, and when the health condition of the occupant at the time of starting is lower than the predetermined level as compared with the health condition of the occupant at the time of parking, the occupant is notified. Since we have made a warning about the deterioration of the health condition, we will provide a driving support device that provides driving support in consideration of the health condition of the occupant when the occupant parks the vehicle in the parking place and then starts the vehicle. Can be done.

It is a block diagram which shows the structural example of the driving support apparatus which concerns on Embodiment 1. FIG. It is a flowchart which shows the operation example of the driving support apparatus which concerns on Embodiment 1. FIG. It is a figure which shows an example of the warning display when the health condition of a driver deteriorates. It is a figure which shows an example of the warning display prompting the use of an alternative transportation means when a driver cannot drive. It is a block diagram which shows the structural example of the driving support apparatus which concerns on Embodiment 2. It is a flowchart which shows the operation example of the driving support apparatus which concerns on Embodiment 2. FIG. 5 is a diagram showing an example of a route and a current position of a vehicle in the second embodiment. It is a figure which shows an example of the warning display when a vehicle tries to park in a place requiring attention. It is a flowchart which shows the operation example of the driving support device when a vehicle is parked in a place requiring attention. It is a figure which shows an example of the warning display prompting the seat movement when a vehicle parks in a place requiring attention. It is a figure which shows an example of the hardware composition of the driving support device which concerns on each embodiment. It is a figure which shows another example of the hardware composition of the driving support device which concerns on each embodiment.

Hereinafter, in order to explain the present invention in more detail, a mode for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1.
FIG. 1 is a block diagram showing a configuration example of the driving support device 10 according to the first embodiment. The vehicle 1 is provided with an input unit 2, a position information acquisition unit 3, a map storage unit 4, a vehicle control unit 5, an occupant monitoring unit 6, a display unit 7, a voice output unit 8, and a driving support device 10. The driving support device 10 monitors the health condition of the occupants of the vehicle 1 and warns when the health condition deteriorates. The driving support device 10 includes a route setting unit 11, a health information acquisition unit 12, a health condition determination unit 13, and an information providing unit 14. The driving support device 10 is connected to an input unit 2, a position information acquisition unit 3, a map storage unit 4, a vehicle control unit 5, an occupant monitoring unit 6, a display unit 7, and a voice output unit 8.

The input unit 2 receives operations such as destination setting by the occupant, and outputs the received operation contents to the route setting unit 11 as operation information. The input unit 2 is composed of a touch panel, a controller, or the like. When the input unit 2 is a touch panel, the touch panel may be integrally configured with the display which is the display unit 7.

The position information acquisition unit 3 receives radio waves from a GPS (Global Positioning System) satellite and positions the vehicle 1 using the received radio waves. The position information acquisition unit 3 outputs the position information indicating the position of the vehicle 1 to the route setting unit 11.

The map storage unit 4 stores map information. The map information is used for route search by the route setting unit 11. In the map information, each road is defined by, for example, a node such as an intersection and a link which is a section connecting the nodes. Further, in the map information, each road is divided into an automatic driving section and a manual driving section. The automatic driving section is, for example, a vehicle having automatic driving level 4 (advanced driving automation) and automatic driving level 5 (complete driving automation) among automatic driving levels 0 to 5 defined by SAE (Sociity of Automation Engineers). Is a road that can be driven. The manual driving section is, for example, a road on which vehicles of automatic driving level 3 (conditional driving automation) or lower among automatic driving levels 0 to 5 defined by SAE can drive.

The map storage unit 4 may be provided in the vehicle 1, or may be provided in an external server or the like. When the map storage unit 4 is provided on an external server or the like, the route setting unit 11 of the driving support device 10 may acquire map information from the map storage unit 4 such as the external server via a communication device (not shown).

The vehicle control unit 5 controls the vehicle 1 so that the vehicle 1 autonomously travels along the route set by the route setting unit 11. Further, the vehicle control unit 5 prohibits the occupant from switching gears so that the vehicle 1 does not start in accordance with the instruction from the health condition determination unit 13.

The occupant monitoring unit 6 monitors at least one of the facial expression of the occupant in the vehicle 1, the eye condition such as the degree of hyperemia or the degree of eye opening, the pulse, the exhalation, or the blood alcohol concentration, and monitors the monitoring result. It is output to the health information acquisition unit 12 as health information. The occupant monitoring unit 6 includes, for example, a DMS (Driver Monitoring System) that monitors the driver's condition using a camera and various sensors, an OMS (Occupant Monitoring System) that monitors the occupant's condition using a camera and various sensors, and the like. It is composed of. The occupant shall refer to a person who has a driver's license. The occupant monitoring unit 6 may determine whether or not the occupant has a driver's license by any method. For example, the occupant monitoring unit 6 may be configured so that when the occupant gets on board, the occupant monitoring unit 6 can register an image of the occupant's own face and whether or not he / she has a driver's license.

The display unit 7 is a display that displays information from the information providing unit 14.

The audio output unit 8 is a speaker that outputs information from the information providing unit 14 as audio.

The route setting unit 11 receives the operation information indicating the departure place and the destination set by the occupant from the input unit 2. The departure place may be the current position acquired by the position information acquisition unit 3. The route setting unit 11 searches for a route from the departure point to the destination using the map information of the map storage unit 4, and sets the searched route for the vehicle control unit 5. When the occupant sets a waypoint, the route setting unit 11 may search for a route from the departure place to the destination through the waypoint. Further, the route setting unit 11 may search for any route, such as a route having a short traveling time, a route having a short traveling distance, or a route traveling preferentially on a toll road, according to an operation of an occupant.

Further, the route setting unit 11 uses the map information of the map storage unit 4 to identify the automatic operation section and the manual operation section in the set route. When the vehicle 1 is parked, the route setting unit 11 outputs information indicating whether the parking place is an automatic driving section or a manual driving section to the health condition determination unit 13. The route setting unit 11 is located at a position where the parking place is adjacent to the road divided into the automatic driving section in the set route, or on the road divided into the automatic driving section in the set route. If it is in a position, it is determined that the parking place is an autonomous driving section. Further, the route setting unit 11 is located at a position where the parking place is adjacent to the road divided into the manual driving section in the set route, or the road is divided into the manual driving section in the set route. If it is in the upper position, it is determined that the parking place is a manual driving section.

The health information acquisition unit 12 acquires health information indicating the health condition of the occupant from the occupant monitoring unit 6 and outputs the health information to the health condition determination unit 13.

The health condition determination unit 13 acquires information indicating whether the parking place of the vehicle 1 is an automatic driving section or a manual driving section from the route setting unit 11. In addition, the health condition determination unit 13 acquires the health information of the occupants in the vehicle 1 from the health information acquisition unit 12. Then, the health condition determination unit 13 determines the health condition level of the occupant by using the health information when the parking place of the vehicle 1 is the manual driving section. The health condition determination unit 13 particularly determines the health condition level of the occupant when the engine is turned off when the vehicle 1 is parked and the health condition level of the occupant when the engine is turned on when the vehicle 1 is started after parking. to decide.

Here, the health condition determination unit 13 shall determine the health condition of the occupant by using the facial expression, eye condition, pulse, exhalation, and blood alcohol concentration included in the health information. Health status shall include both physical and mental health, such as poor physical condition, drowsiness, fatigue, and drunkenness. The health condition determination unit 13 scores the health condition based on the facial expression, the health condition based on the degree of congestion or the degree of eye opening, the health condition based on the pulse, and the exhaled breath for each occupant. Score health status and score health status based on blood alcohol concentration. The method of scoring shall be preset for the health condition determination unit 13, and the better the health condition, the higher the score. Subsequently, the health condition determination unit 13 calculates the total score by adding the facial expression score, the eye condition score, the pulse score, the exhalation score, and the blood alcohol concentration score for each occupant, and obtains the total score. Evaluate the health level of each occupant based on. For example, there are five health status levels, and level 1 is a level at which manual operation is legally impossible due to reasons such as drunkenness. Level 2 is a level at which manual driving is legally possible, but a break is recommended due to poor physical condition or the like. Level 3 and above are levels that can be operated manually without any legal or health problems.

In the first embodiment, the health condition determination unit 13 determines the health condition level of the occupant when the vehicle 1 starts after parking, as compared with the health condition level of the occupant when the vehicle 1 is parked. It is determined whether or not the vehicle has dropped by (for example, 2 levels) or more. When the health condition level of the occupant when the vehicle 1 starts after parking is lower than the health condition level of the occupant when the vehicle 1 is parked, the health condition determination unit 13 determines the occupant after parking. It is judged that the health condition has deteriorated due to the actions taken by. The case where the health condition deteriorates due to the actions taken by the occupant after parking is the case where the parking place is a workplace and is tired from work, or the parking place is an exercise facility and is tired from exercise. In this case, the health condition determination unit 13 instructs the information providing unit 14 to warn that the manual operation needs attention because the health condition is deteriorating.

In addition, the health condition determination unit 13 determines whether or not the health condition level of the occupant when the vehicle 1 starts after parking is a predetermined level (for example, level 1) or less. When the health condition level of the occupant when the vehicle 1 starts after parking is 1 or less, the health condition determination unit 13 states that the health condition is significantly deteriorated by the action taken by the occupant after parking and manual operation is not possible. Judge that there is. In this case, the health condition determination unit 13 instructs the vehicle control unit 5 to make it impossible for the vehicle 1 to start. Upon receiving this instruction, the vehicle control unit 5 prohibits gear switching as described above.

The information providing unit 14 warns the occupants of the vehicle 1 of the deterioration of the health condition in accordance with the instruction from the health condition determination unit 13. The information providing unit 14 may display a warning screen on the display unit 7, or may output a warning voice from the voice output unit 8.

In the first embodiment, the "occupant" whose health condition level is to be compared when starting after parking refers to a driver who is seated in the driver's seat. In the second embodiment described later, the "occupant" may include not only the driver but also a passenger.

Next, the operation of the driving support device 10 will be described.
FIG. 2 is a flowchart showing an operation example of the driving support device 10 according to the first embodiment. In the flowchart of FIG. 2, it is assumed that the vehicle 1 is traveling on the route set by the route setting unit 11.

In step ST11, the route setting unit 11 determines whether or not the engine of the vehicle 1 is turned off in the manual driving section. The route setting unit 11 may acquire information on whether or not the engine has been turned off from, for example, the vehicle control unit 5.

The route setting unit 11 instructs the health condition determination unit 13 that the parking place is the manual driving section when the engine of the vehicle 1 is turned off in the manual driving section (step ST11 “YES”), and in other cases (step ST11 “YES”). Step ST11 “NO”), the process of step ST11 is repeated. The parking place is not limited to the destination or the waypoint, and may be any place in the middle of the route set by the route setting unit 11.

In step ST12, the health condition determination unit 13 acquires the health information of the occupant from the health information acquisition unit 12, and determines the health condition level of the occupant at the time of parking using the acquired health information. As mentioned above, the "occupant" whose health level is to be compared when starting after parking refers to the driver who is seated in the driver's seat. Therefore, also in the flowchart of FIG. 2, the target for which the health condition level is compared when starting after parking is the driver. Therefore, in step ST12, the health condition determination unit 13 acquires the driver's health information from the health information acquisition unit 12, and determines the driver's health condition level at the time of parking using the acquired health information. .. The processing after step ST13 is also described as assuming that the "occupant" is the driver.

In step ST13, the route setting unit 11 determines whether or not the engine of the vehicle 1 is turned on. When the engine of the vehicle 1 is turned on (step ST13 “YES”), the route setting unit 11 instructs the health condition determination unit 13 that the engine of the vehicle 1 is turned on and starts, and in other cases (step ST13 “”). NO "), the process of step ST13 is repeated.

In step ST14, the health condition determination unit 13 acquires the driver's health information from the health information acquisition unit 12, and determines the driver's health condition level at the time of starting using the acquired health information.

In step ST15, the health condition determination unit 13 compares the driver's health condition level at the time of parking determined in step ST12 with the driver's health condition level at the time of starting determined in step ST14. The health condition determination unit 13 states that when the driver's health condition level drops by 2 levels or more (step ST15 “YES”), the health condition determination unit 13 states that the health condition has deteriorated due to the actions taken by the driver after parking. to decide. The case where it is judged that the health condition has deteriorated due to the actions taken by the driver after parking corresponds to, for example, the case where the health condition level drops from 3 to 1 or the case where the health condition level drops from 5 to 3. It does not apply when the number drops from to 2. Further, the health condition determination unit 13 changes the processing to be performed depending on whether the driver's health condition level at the time of starting is level 2 or higher or level 1.

The health condition determination unit 13 indicates that the driver's health condition level at the time of starting is level 2 or higher (step ST16 “YES”), that is, the driver's health condition has deteriorated but can be legally driven. If it is in a state, it is instructed to warn the information providing unit 14.

In step ST17, the information providing unit 14 warns the driver of the vehicle 1 of the deterioration of the health condition by using at least one of the display unit 7 and the voice output unit 8 in accordance with the instruction of the health condition determination unit 13. FIG. 3 is a diagram showing an example of a warning display when the driver's health condition deteriorates. In the example of FIG. 3, the information providing unit 14 uses the display unit 7 to warn the driver to pay attention during manual driving because the driver's health condition is deteriorating.

The health condition determination unit 13 is in a state where the driver's health condition level at the time of starting is level 1 (step ST16 “NO”), that is, the driver's health condition is deteriorated and the driver is legally unable to drive. If this is the case, the vehicle control unit 5 is instructed to make the vehicle 1 impossible to start.

In step ST18, the vehicle control unit 5 prevents the gear of the vehicle 1 from being switched from parking according to the instruction of the health condition determination unit 13.
In this case, the health condition determination unit 13 may instruct the information providing unit 14 to give a warning to rest until the driver's physical condition is recovered or to use an alternative transportation means. .. Alternative means of transportation are taxis, drive service, public transportation, and the like. FIG. 4 is a diagram showing an example of a warning display prompting the driver to use an alternative transportation means when the driver cannot drive. In the example of FIG. 4, the information providing unit 14 uses the display unit 7 to warn the driver to take a rest or use an alternative transportation means because the driver cannot drive.

When the difference between the health condition level of the driver at the time of parking and the health condition level of the driver at the time of starting is less than 2 levels (step ST15 “NO”), in step ST19, the health condition determination unit 13 determines the health condition. It is determined that the driver is in a driving state and the vehicle 1 can be started. However, even if the difference between the driver's health level when parking and the driver's health level when starting is less than 2 levels, if the health level is level 1, the health condition judgment unit 13 exceptionally performs the same processing as in step ST18.

As described above, the driving support device 10 according to the first embodiment includes a route setting unit 11, a health information acquisition unit 12, a health condition determination unit 13, and an information providing unit 14. The route setting unit 11 sets a route on which the vehicle 1 travels, and distinguishes between a manual driving section and an automatic driving section of the route. When the vehicle 1 is parked, the health information acquisition unit 12 acquires health information indicating the health condition of the occupant at the time of parking and at the time of starting after parking. When the place where the vehicle 1 is parked is a manual driving section, the health condition determination unit 13 uses the health information acquired by the health information acquisition unit 12 and uses the health information of the occupant at the time of starting as compared with the health condition of the occupant at the time of parking. Determine if your health has fallen above a predetermined level. When the health condition determination unit 13 determines that the health condition of the occupant has fallen beyond a predetermined level, the information providing unit 14 warns the occupant of the deterioration of the health condition. With this configuration, the driving support device 10 can call attention to the driver whose health condition has deteriorated before and after parking. Therefore, it is possible to provide the driving support device 10 that provides driving support in consideration of the health condition of the occupant when the occupant parks the vehicle 1 in the parking place and then starts the vehicle 1.

Embodiment 2.
FIG. 5 is a block diagram showing a configuration example of the driving support device 10 according to the second embodiment. The driving support device 10 according to the second embodiment has a configuration connected to a caution location storage unit 9. In FIG. 5, the same or corresponding parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

The caution location storage unit 9 stores information on the caution location, which will be described later. In the example of FIG. 5, the caution location storage unit 9 is provided in the vehicle 1, but may be provided in the driving support device 10. Further, the caution location storage unit 9 may be provided on an external server or the like. When the caution-required place storage unit 9 is provided on the vehicle-external server or the like, the health condition determination unit 13 of the driving support device 10 is connected to the vehicle 1 from the caution-required place storage unit 9 of the vehicle-external server or the like via a communication device (not shown). It suffices to obtain information on places of caution associated with the occupants seated in the driver's seat. At that time, the health condition determination unit 13 acquires, for example, an image captured by the camera of the occupant monitoring unit 6 via the health information acquisition unit 12, and analyzes the acquired image to allow the occupant to be seated in the driver's seat. Should be identified.

FIG. 6 is a flowchart showing an operation example of the driving support device 10 according to the second embodiment. Since the processing of steps ST11 to ST19 of FIG. 6 is the same as the processing of steps ST11 to ST19 of FIG. 2, the description thereof will be omitted.

When the health condition level of the driver at the time of starting is two or more levels lower than the health condition level of the driver at the time of parking (step ST15 “YES”), the health condition determination unit 13 determines the vehicle 1 in step ST20. The parking place is stored in the caution place storage unit 9 as a caution place. At this time, the health condition determination unit 13 may associate the driver at the time of starting with the place requiring attention and store it in the place requiring attention storage unit 9. For example, the health condition determination unit 13 acquires an image captured by the camera of the occupant monitoring unit 6 via the health information acquisition unit 12, and analyzes the acquired image to identify the occupant seated in the driver's seat. Just do it. By associating the driver with the place requiring attention, the health condition is determined when a plurality of people share the vehicle 1 or when the place requiring attention storage 9 is provided on an external server or the like. The unit 13 can refer to the place of caution associated with the occupant currently seated in the driver's seat.

FIG. 7 is a diagram showing an example of the route and the current position 30 of the vehicle 1 in the second embodiment. It is assumed that the route setting unit 11 has set a route for switching from the automatic driving section 31 to the manual driving section 33 at the switching point 32, and it is assumed that the vehicle 1 is traveling at the current position 30 on the set route. Further, in the example of FIG. 7, it is assumed that the destination of this route is already stored in the caution-required place storage unit 9 as the caution-required place in the manual operation section. In this case, the route setting unit 11 uses the position information of the vehicle 1 acquired from the position information acquisition unit 3, the set route information, and the information of the caution location stored in the caution location storage unit 9. , It is determined whether or not the vehicle 1 has approached within a predetermined distance from the place requiring attention. When the route setting unit 11 determines that the vehicle 1 has approached within a predetermined distance from the place requiring attention, the route setting unit 11 instructs the information providing unit 14 to give a warning as shown in FIG. Further, the route setting unit 11 uses the map information of the map storage unit 4 to search for a parking place in the automatic driving section existing around the place requiring attention, and sends the information of the searched parking place to the information providing unit 14. Output.

FIG. 8 is a diagram showing an example of a warning display when the vehicle 1 tries to park in a place requiring attention. The route setting unit 11 instructs the information providing unit 14 to give a warning when the vehicle 1 travels to the current position 30 and approaches a destination which is a place requiring attention. Upon receiving this instruction, the information providing unit 14 uses the display unit 7 to display a warning as shown in FIG. In the example of FIG. 8, two options of "(1) re-searching the parking place in the automatic driving section" and "(2) running as it is" are displayed. When the driver selects "(2) Driving as it is", the vehicle 1 heads for the destination, which is a place requiring attention.

On the other hand, when the driver performs an operation of selecting "(1) Re-search for a parking place in the automatic driving section", the input unit 2 outputs operation information indicating the operation content to the route setting unit 11. The route setting unit 11 that has received this operation information searches for one or more parking places in the automatic driving section existing around the destination that is a cautionary place, and sends the information of the searched parking place to the information providing unit 14. Output. The information providing unit 14 causes the display unit 7 to display one or more parking places searched by the route setting unit 11. The driver performs an operation of selecting one parking place from one or more parking places displayed on the display unit 7. The input unit 2 outputs the operation information indicating the operation content to the route setting unit 11. The route setting unit 11 that has received this operation information re-searches the route with the parking place selected by the driver as the destination, and sets the re-searched route for the vehicle control unit 5. As a result, the vehicle 1 is parked in the parking place in the re-searched automatic driving section. Therefore, when the vehicle starts after parking, the vehicle 1 is controlled by the automatic driving control of the vehicle control unit 5 regardless of the driver's health condition level. It will be possible to start. In other words, by parking in the automatic driving section, the driver can start without waiting after that, which leads to a reduction in the starting time compared to the case of parking at the destination of the manual driving section, which is a cautionary place. ..

In addition, when the initial destination or waypoint instructed by the occupant to the route setting unit 11 via the input unit 2 is a place requiring attention, the route setting unit 11 has a manual operation section in advance at the stage of setting the route. The information providing unit 14 may be instructed to issue a warning prompting a change from the original destination or waypoint in the vehicle to the destination or waypoint in the automatic driving section. In this case, the information providing unit 14 can park the destination or waypoint of the currently set manual driving section in the automatic driving section existing around the destination or waypoint by using the display unit 7. Warn the driver of vehicle 1 to change to a different location.

Further, when the initial destination or waypoint is a place requiring attention, the route setting unit 11 searches for a parking place in the automatic driving section, and searches from the original destination or waypoint in the manual driving section. The information providing unit 14 may be instructed to give a warning to the parking place in the automatic driving section to change the destination or waypoint.

In addition, when the driver himself / herself recognizes the destination or waypoint as a place to be watched, that is, the action taken after parking the vehicle 1 at the destination or waypoint deteriorates the health condition and makes manual driving difficult. If you are aware of this, the input unit 2 is to search for a parkable place in the automatic driving section that exists around the original destination or waypoint in the manual driving section and set it as the destination or waypoint. May be instructed to the route setting unit 11 via.

Furthermore, if the initial destination is a place of caution, even if the occupants can manually drive when setting the route and when parking, the actions taken after parking the destination will worsen the health condition at the time of starting after parking. There is a high possibility that you are doing it. Therefore, when the route setting unit 11 searches for a route (that is, an outward route) and also searches for a route (that is, a return route) to be traveled after parking at the same time, the route setting unit 11 includes a route including many automatic driving sections as the return route. You may search with priority.
Similarly, if the initial stopover is a point of caution, even if the occupants are able to drive manually when setting the route and when parking, the actions taken after parking the stopover will result in a health condition at the time of starting after parking. It is likely that it is getting worse. Therefore, when searching for a route, the route setting unit 11 may preferentially search for a route including many automatic driving sections as a route from the waypoint to the destination.

Next, the operation of the driving support device 10 when the vehicle 1 is parked in a place requiring attention will be described.
FIG. 9 is a flowchart showing an operation example of the driving support device 10 when the vehicle 1 is parked in a place requiring attention. Since the processing of steps ST11a to ST14 of FIG. 9 is the same as the processing of steps ST11 to ST14 of FIG. 2, the description thereof will be omitted. However, in step ST11a of FIG. 9, it is assumed that the vehicle 1 is parked at a cautionary place in the manual driving section.

In step ST21, the health condition determination unit 13 determines whether or not the driver's health condition level at the time of starting determined in step ST14 is level 2 or less.

When the driver's health condition level at the time of parking is level 2 or less (step ST21 “YES”), it cannot be said that the driver's health condition is suitable for manual driving. Therefore, in step ST22, the health condition determination unit 13 confirms whether or not there is a passenger other than the driver in the vehicle 1. When there is a passenger (step ST22 “YES”), the health condition determination unit 13 acquires the passenger's health information from the health information acquisition unit 12 in step ST23, and uses the acquired health information to ride the passenger at the time of starting. Determine a person's health level.

In step ST24, the health condition determination unit 13 determines whether or not there is a passenger whose health condition level is level 3 or higher in the vehicle 1 based on the health condition level of each passenger determined in step ST23. When the vehicle 1 has a passenger with a health condition level of 3 or higher (step ST24 “YES”), the health condition determination unit 13 exchanges seats between a driver with a low health condition level and a passenger with a high health condition level. The information providing unit 14 is instructed to do so.

In step ST25, the information providing unit 14 uses at least one of the display unit 7 and the voice output unit 8 in accordance with the instruction of the health condition determination unit 13, and a passenger with a health condition level 3 or higher who can manually drive is placed in the driver's seat. Give a warning to move seats so that you can take a seat. FIG. 10 is a diagram showing an example of a warning display prompting seat movement when the vehicle 1 is parked in a place requiring attention. In the example of FIG. 10, the information providing unit 14 uses the display unit 7 to urge the driver of the vehicle 1 and the passengers having a health condition level of 3 or higher to move their seats.

In step ST26, the health condition determination unit 13 determines whether or not a passenger having a health condition level 3 or higher determined in step ST24 is seated in the driver's seat. For example, the health condition determination unit 13 may acquire an image captured by the camera of the occupant monitoring unit 6 via the health information acquisition unit 12 and analyze the acquired image to determine the presence or absence of seat movement.

When the passenger is seated in the driver's seat (step ST26 “YES”), or when the driver's health condition level at the time of starting is level 3 or higher (step ST21 “NO”), the health condition in step ST27. The determination unit 13 determines that the vehicle 1 is in a state where it can start.

When there is no passenger (step ST22 “NO”), or when there is a passenger but the health condition level is level 2 or less (step ST24 “NO”), the occupant in a healthy condition suitable for manual driving is vehicle 1. Will not be in. Therefore, the health condition determination unit 13 instructs the vehicle control unit 5 to make it impossible to start the vehicle 1.

In step ST28, the vehicle control unit 5 prevents the gear of the vehicle 1 from being switched from parking according to the instruction of the health condition determination unit 13.
Further, in step ST28, the information providing unit 14 may urge the driver and passengers to rest until their physical condition is recovered, or to use an alternative means of transportation, as in step ST18 in FIG. You may urge.

The operation shown in the flowchart of FIG. 9 of the second embodiment may be combined with the operation shown in the flowchart of FIG. 2 of the first embodiment or FIG. 6 of the second embodiment. In this case, instead of the process of step ST18 of FIG. 2 or 6, the process of steps ST22 to ST28 of FIG. 9 is performed.

As described above, when the health condition determination unit 13 of the second embodiment determines that the health condition of the occupant has dropped beyond a predetermined level, pay attention to the place in the manual driving section where the vehicle 1 is parked. It is stored in the caution place storage unit 9 as a place. As a result, the driving support device 10 can grasp the place where the health condition deteriorates due to the action taken by the occupant after parking.

Further, the route setting unit 11 of the second embodiment exists in the vicinity of the caution-required place when the vehicle 1 approaches within a predetermined distance from the caution-required place stored in the caution-required place storage unit 9. Search for parking locations within the autonomous driving section. The information providing unit 14 presents to the occupant the parking place in the automatic driving section searched by the route setting unit 11. As a result, the driving support device 10 can prompt the driver to park in the automatic driving section in advance before arriving at the planned parking place in case the health condition deteriorates due to the action taken by the occupant after parking. When vehicle 1 is parked in a parking place within the automatic driving section according to this presentation, even if the occupant's health condition deteriorates and manual driving is not possible at the time of starting after parking, automatic driving is performed without waiting. It will be possible to start, which will save time.

Further, when the destination or waypoint of the vehicle 1 matches the caution-required place stored in the caution-required place storage unit 9, the route setting unit 11 of the second embodiment automatically exists in the vicinity of the caution-required place. Search for parking locations within the driving section. The information providing unit 14 presents to the occupant the parking place in the automatic driving section searched by the route setting unit 11. As a result, the driving support device 10 can prompt parking in the automatic driving section in advance at the time of route setting in case the health condition deteriorates due to the action taken by the occupant after parking. When the vehicle 1 sets the parking place in the automatic driving section as the destination or the waypoint according to this presentation, even if the occupant's health condition deteriorates and the manual driving is impossible at the time of starting after parking. It is possible to start by automatic operation without waiting, which leads to time reduction.

Further, the health condition determination unit 13 of the second embodiment uses the health information acquired by the health information acquisition unit 12, and all the occupants who are in the vehicle 1 at the time of starting the vehicle 1 cannot manually drive the vehicle 1. If it is determined that the vehicle 1 is determined, the vehicle control unit 5 that controls the vehicle 1 is instructed to make the vehicle 1 impossible to start. As a result, the driving support device 10 can prevent a occupant who cannot be manually driven from driving the vehicle 1 and traveling in the manual driving section.

Further, the information providing unit 14 of the second embodiment promotes the use of the alternative transportation means when it is determined by the health condition determination unit 13 that all the occupants cannot operate manually. According to this presentation, the occupant does not have to wait with the vehicle 1 parked until manual driving becomes possible by using the alternative transportation means.

Finally, the hardware configuration of the driving support device 10 according to each embodiment will be described.
11 and 12 are diagrams showing a hardware configuration example of the operation support device 10 according to each embodiment. The functions of the route setting unit 11, the health information acquisition unit 12, the health condition determination unit 13, and the information providing unit 14 in the driving support device 10 are realized by the processing circuit. That is, the driving support device 10 includes a processing circuit for realizing the above functions. The processing circuit may be a processing circuit 100 as dedicated hardware, or may be a processor 101 that executes a program stored in the memory 102.

As shown in FIG. 11, when the processing circuit is dedicated hardware, the processing circuit 100 may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, or an ASIC (Application Specific Integrated Circuit). ), FPGA (Field Processor Metal Gate Array), or a combination thereof. The functions of the route setting unit 11, the health information acquisition unit 12, the health condition determination unit 13, and the information providing unit 14 may be realized by a plurality of processing circuits 100, or the functions of each unit may be combined into one processing circuit 100. It may be realized.

As shown in FIG. 12, when the processing circuit is the processor 101, the functions of the route setting unit 11, the health information acquisition unit 12, the health condition determination unit 13, and the information providing unit 14 are software, firmware, or software. It is realized by combining with firmware. The software or firmware is described as a program and stored in the memory 102. The processor 101 realizes the functions of each part by reading and executing the program stored in the memory 102. That is, the driving support device 10 includes a memory 102 for storing a program in which the step shown in the flowchart of FIG. 2 or the like is executed as a result when executed by the processor 101. Further, it can be said that this program causes the computer to execute the procedures or methods of the route setting unit 11, the health information acquisition unit 12, the health condition determination unit 13, and the information providing unit 14.

Here, the processor 101 is a CPU (Central Processing Unit), a processing device, an arithmetic unit, a microprocessor, or the like.
The memory 102 may be a non-volatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), or a flash memory, and may be a non-volatile or volatile semiconductor memory such as a hard disk or a flexible disk. It may be a magnetic disk of the above, or an optical disk such as a CD (Compact Disc) or a DVD (Digital Versaille Disc).

Regarding the functions of the route setting unit 11, the health information acquisition unit 12, the health condition determination unit 13, and the information providing unit 14, some of them are realized by dedicated hardware, and some of them are realized by software or firmware. You may. As described above, the processing circuit in the driving support device 10 can realize the above-mentioned functions by hardware, software, firmware, or a combination thereof.

Further, in the above example, the functions of the route setting unit 11, the health information acquisition unit 12, the health condition determination unit 13, and the information providing unit 14 are integrated into the on-board unit mounted on the vehicle 1 or brought into the vehicle 1. However, it may be distributed to server devices on the network, mobile terminals such as smartphones, and in-vehicle devices. Further, the functions of the route setting unit 11, the health information acquisition unit 12, the health condition determination unit 13, and the information providing unit 14 may be integrated in a server device on the network.

It should be noted that, within the scope of the present invention, it is possible to freely combine each embodiment, modify any component of each embodiment, or omit any component of each embodiment.

The driving support device according to the present invention is suitable for use as a driving support device for an autonomous driving vehicle that requires switching between automatic driving and manual driving.

1 vehicle, 2 input unit, 3 position information acquisition unit, 4 map storage unit, 5 vehicle control unit, 6 occupant monitoring unit, 7 display unit, 8 voice output unit, 9 caution location storage unit, 10 driving support device, 11 Route setting unit, 12 health information acquisition unit, 13 health condition judgment unit, 14 information provision unit, 30 current position, 31 automatic operation section, 32 switching points, 33 manual operation section, 100 processing circuit, 101 processor, 102 memory.

The driving support device according to the present invention has a route setting unit that sets a route on which the vehicle travels and distinguishes between a manual driving section and an automatic driving section of the route, and when the vehicle is parked, when parked and when starting after parking. When the location where the vehicle is parked is a manual driving section, the health information acquisition department that acquires health information indicating the health condition of the occupant in the above is used, and the health information of the occupant when parking is used. The health condition judgment unit that determines whether or not the occupant's health condition at the time of starting has fallen beyond a predetermined level compared to the condition, and the health condition judgment department that determines whether the occupant's health condition exceeds a predetermined level. When it is judged that the vehicle has dropped, it is equipped with an information providing unit that warns the occupants of the deterioration of their health condition. If all passengers riding is determined that a manual operation impossible, is to shall and characterized in that an instruction to preclude starting of the vehicle to the vehicle control unit for controlling the vehicle ..

Claims (8)

A route setting unit that sets a route on which the vehicle travels and distinguishes between a manual driving section and an automatic driving section of the route.
When the vehicle is parked, a health information acquisition unit that acquires health information indicating the health condition of the occupants at the time of parking and starting after parking, and
When the place where the vehicle is parked is a manual driving section, the health condition of the occupant at the time of starting is compared with the health condition of the occupant at the time of parking by using the health information acquired by the health information acquisition unit. A health condition judgment unit that judges whether or not the vehicle has fallen beyond a predetermined level,
A driving support device including an information providing unit that warns the occupant of deterioration of the health condition when the health condition determination unit determines that the health condition of the occupant has fallen beyond the predetermined level. The driving support device according to claim 1, wherein the health information includes at least one of the facial expression, eye condition, pulse, exhalation, or blood alcohol concentration of the occupant. When the health condition determination unit determines that the health condition of the occupant has dropped beyond the predetermined level, the health condition determination unit stores the location in the manual driving section where the vehicle is parked as a cautionary location in the storage unit. The driving support device according to claim 1. When the vehicle approaches the location requiring attention within a predetermined distance from the location requiring attention stored in the storage unit, the route setting unit searches for a parking location in the automatic driving section existing around the location requiring attention. death,
The driving support device according to claim 3, wherein the information providing unit presents the parking place searched by the route setting unit to the occupant. When the destination or waypoint of the vehicle matches the caution location stored in the storage unit, the route setting unit searches for a parking location in the automatic driving section existing around the caution location. ,
The driving support device according to claim 3, wherein the information providing unit presents the parking place searched by the route setting unit to the occupant. When the health condition determination unit uses the health information acquired by the health information acquisition unit and determines that all the occupants in the vehicle cannot manually drive when the vehicle starts, the vehicle The driving support device according to claim 1, wherein the vehicle control unit that controls the vehicle is instructed to make it impossible to start the vehicle. The driving support device according to claim 6, wherein the information providing unit promotes the use of an alternative transportation means when it is determined by the health condition determination unit that all the occupants cannot operate manually. The route setting unit sets the route on which the vehicle travels, identifies the manual driving section and the automatic driving section of the route, and determines the route.
When the vehicle is parked, the health information acquisition unit acquires health information indicating the health condition of the occupants at the time of parking and starting after parking.
When the health condition determination unit uses the health information acquired by the health information acquisition unit when the place where the vehicle is parked is a manual driving section, the health condition determination unit uses the health information acquired by the health information acquisition unit at the time of starting the vehicle as compared with the health condition of the occupant at the time of parking. Judging whether the health condition of the occupant has dropped beyond a predetermined level,
A driving support method for warning the occupant of deterioration of the health condition when the information providing unit determines that the health condition of the occupant has fallen beyond the predetermined level by the health condition determination unit.

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