KR102508511B1 - System for automatic driving - Google Patents

Abstract

The present invention relates to an autonomous driving system, and more particularly, to an autonomous driving system capable of reducing the possibility of collision in consideration of occupant information and external factors.
An autonomous driving system according to the present invention includes an occupant state recognition unit that obtains information on the occupant's state, a function recommendation unit that receives the occupant's state information and selects a recommended function, and determines a driving mode in consideration of the occupant's state information. It is characterized in that it includes a driving mode determining unit and a driving path determining unit that determines a driving path of the vehicle by comprehensively considering the driving mode and external factor detection information.

Description

Autonomous driving system {SYSTEM FOR AUTOMATIC DRIVING}

The present invention relates to an autonomous driving system, and more particularly, to an autonomous driving system capable of reducing the possibility of collision in consideration of occupant information and external factors.

The Society of Automotive Engineers (SAE) divides the autonomous driving technology of automobiles into five levels according to the level of technology.

According to the classification, currently released vehicles are at level 3, where the vehicle detects obstacles on its own and can drive autonomously within a certain section, or a level where the vehicle analyzes/monitors the moving section on its own and drives proactively when the driver sets only the destination. corresponds to 4.

The prior art identifies the driver's condition and determines the driver's stimulation level (Japanese Patent Laid-Open Publication No. 2015-185245), or uses the driver's emotion recognition result to output a sound source (Korean Patent Publication No. 10-2014-0166785). ), which is only focused on the driver's condition, and has a limitation in that it is difficult to provide vehicle functions according to different states of a plurality of occupants in the vehicle.

The present invention has been proposed to solve the above-mentioned problems, and provides a service that selects and recommends vehicle functions by recognizing state information of a driver as well as a passenger, and determines driving mode and driving route to improve passenger satisfaction and driving stability. Its purpose is to provide an autonomous driving system that increases.

An autonomous driving system according to the present invention includes an occupant state recognition unit that obtains information on the occupant's state, a function recommendation unit that receives the occupant's state information and selects a recommended function, and determines a driving mode in consideration of the occupant's state information. It is characterized in that it includes a driving mode determining unit and a driving path determining unit that determines a driving path of the vehicle by comprehensively considering the driving mode and external factor detection information.

According to the autonomous driving system according to an embodiment of the present invention, it is possible to increase satisfaction of occupants in a vehicle by selecting and recommending vehicle functions using state information of a passenger as well as a driver.

According to an embodiment of the present invention, it is possible to increase the reliability of driving stability and collision avoidance of an autonomous vehicle by determining a driving mode and a driving route using information of a vehicle occupant.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a diagram showing the structure of an autonomous driving system according to an embodiment of the present invention.
2A to 2D are diagrams illustrating exemplary driving using an autonomous driving system according to an embodiment of the present invention.

The foregoing and other objects, advantages and characteristics of the present invention, and a method of achieving them will become clear with reference to the detailed embodiments described below in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, and only the following embodiments provide the purpose of the invention, As only provided to easily inform the configuration and effect, the scope of the present invention is defined by the description of the claims.

Meanwhile, terms used in this specification are for describing the embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, “comprises” and/or “comprising” means the presence of one or more other components, steps, operations, and/or elements in which a stated component, step, operation, and/or element is present. or added.

Referring to FIG. 1 , an autonomous driving system according to an embodiment of the present invention includes an occupant condition recognition unit 100 that obtains information about a passenger's condition and a control unit 300 that recommends vehicle functions and determines a driving mode and a driving route. ) is composed of.

The control unit 300 includes, in detail, a function recommender 310 that receives the passenger's condition information and selects a recommended function from among available functions, and a driving mode determiner 320 that determines the driving mode in consideration of the passenger's condition information. ) and a driving route determining unit 330 that determines a driving route of the vehicle by comprehensively considering the driving mode and external factor detection information.

The occupant state recognition unit 100 includes a driver state recognition unit 110 and a passenger state recognition unit 120, and includes at least one of an image acquisition unit, a voice acquisition unit, and a device interlocking unit, get status information

The occupant state recognition unit 100 analyzes the image information obtained through the image acquisition unit and recognizes the occupant's body shape information and drowsiness.

The function recommender 310 selects a recommended function to lower the temperature setting of the air conditioner as a result of analyzing the image information, for example, when the occupant is wiping sweat, and recommends a function to ventilate when the occupant is a driver and is suspected of being drowsy, or recommends a rest. Select message expression function.

If the occupant suspected of drowsiness is not the driver and takes an action to wake up (massaging his/her neck, turning his/her neck, rubbing his/her eyes, etc.), a ventilation recommendation function is provided, and the passenger If you intentionally try to sleep without action, it provides recommended functions such as seat recline and volume reduction of the in-vehicle audio.

In addition, the function recommendation unit 310 provides a lock setting for the window and car door of the corresponding seat as a recommended function when the passenger is a child.

The function recommendation unit 310 analyzes the voice information obtained through the voice acquisition unit to determine the gender and age of the passenger or analyzes speech information.

The function recommendation unit 310 selects the seat heating function as a recommended function as a result of voice information analysis, for example, when the occupant is an elderly person, and sets the air conditioner in the vehicle according to the analysis result of ignition information such as “hot, cold” Select changes as recommended features.

The device interlocking unit interlocks with the wearable device worn by the occupant or the smartphone possessed by the occupant to obtain the occupant's unique information (ID information), pulse rate, sleep information, schedule information, and the like.

The function recommendation unit 310 anticipates drowsy driving and selects functions such as ventilation setting and audio setting as recommended functions to prevent drowsy driving when it is confirmed through the driver's wearable device that he did not get enough sleep the previous day.

The driving mode determining unit 320 sets the driving mode to a first driving mode (comfortable driving mode, driving mode that minimizes acceleration and lane change) in consideration of the occupant's schedule information (eg, meeting schedule and location) and current location information. ) or a second driving mode (shortest time driving mode, a mode for driving to a destination in the shortest time even if acceleration and lane change are frequent) is determined.

The driving mode determination unit 320 sets a first driving mode for driving stability and comfort of the passenger when the passenger is an elderly person or a young child, and when the passenger is in their 20s or needs to move quickly in consideration of schedule information. In this case, the second driving mode is set.

The control unit 300 controls so that different recommended functions are provided to passengers without mutual interference in relation to the recommended function selected through the function recommendation unit 310 .

For example, assuming that the driver is sweating despite wearing a short-sleeved shirt and the air conditioner needs to be turned on, and the passenger is recognized as a child wearing a mask, the air conditioner will only blow cool air to the driver's seat. The direction and intensity are automatically controlled, and the heating function is activated on the passenger's seat.

The function recommendation unit 310 according to an embodiment of the present invention displays the recommended function in a widget format on the cluster to provide the driver with the right to control the function.

The driver may select on/off of the recommended function using a function control right through gesture recognition, voice recognition, and the like.

According to an embodiment of the present invention, driving mode information determined through the driving mode determining unit 320 is mutually exchanged with surrounding vehicles through the communication unit 400 .

The driving route determining unit 330 determines a driving route according to the occurrence of an event in consideration of driving mode information of the host vehicle, driving mode information of surrounding vehicles, and external factor detection information, and the external factor detector 200 determines the surrounding noise information. , wind speed information, road surface information, traffic information, etc. are obtained and provided.

Hereinafter, an embodiment of driving using an autonomous driving system according to an embodiment of the present invention will be described with reference to FIGS. 2A to 2D.

2A shows a current situation for explaining a driving example according to an embodiment of the present invention.

On a road where lanes 1, 2, and 3 are driving lanes, it is assumed that lane 1 is a dedicated bus lane, lane 2 is congested with vehicles in front, and lane 3 is a smooth flow of traffic ahead.

The first vehicle A is driving in the first driving mode (comfortable driving mode, driving mode minimizing acceleration and lane change) according to the above-mentioned result of recognizing the occupant state and the result of determining the driving mode, followed by the second driving mode. It is assumed that the vehicle B is driving in the second driving mode (shortest time driving mode, a mode allowing the vehicle to drive in the shortest time even when accelerating and changing lanes frequently) according to the occupant condition information and the determination of the driving mode.

Referring to FIG. 2B , since lane change should be minimized according to the first driving mode, the first vehicle A decelerates while maintaining a safe distance from the preceding vehicle C to maintain the second lane as a driving lane.

On the other hand, the second vehicle B needs to arrive at its destination within a faster time even if a lane change occurs according to the second driving mode, so it changes its driving lane to a third lane and drives.

Referring to FIG. 2C , it is further assumed that the preceding vehicle C suddenly stops.

The first vehicle A is driving according to the first driving mode, but according to the distance information from the preceding vehicle C, which suddenly stopped, there is a case in which the first vehicle A also has to make a sudden stop, and the first vehicle A needs to make a sudden stop. If it is determined that changing the driving lane will lessen the anxiety of the occupants, the driving lane is changed to the third lane.

However, when the first vehicle A does not have to make a sudden stop because the distance from the preceding vehicle C suddenly stopped is sufficiently far, the driving lane is not changed as shown in FIG. keep the driving lane of

When the first vehicle (A) changes the driving lane to the third lane, the second vehicle (B) changes the driving lane to the third lane even if it originally follows its own driving mode (second driving mode), or 1 Recognizes a change in the driving lane of vehicle A, reduces the speed, and changes the driving lane to a third lane so that there is no possibility of collision with the first vehicle.

Unlike the above, FIG. 2D illustrates a case where the first vehicle A is driving in the second driving mode and the second vehicle B is driving in the first driving mode.

In this case, it is assumed that lane 1 is a dedicated bus lane, lane 2 is congested with vehicles in front, and lane 3 is a smooth flow of traffic ahead. is the same

The first vehicle (A) changes the driving lane to the third lane according to the second driving mode, and the second vehicle (B) changes the lane of the first vehicle in consideration of the driving mode information received from the first vehicle (A). recognize

When the third vehicle does not cut in front of the second vehicle, the braking target distance of the second vehicle B is increased based on the preceding vehicle C, and when the first vehicle A is present By decelerating more relatively gradually, it is possible to drive more in line with the purpose of the first driving mode.

The driving route determination unit 330 according to an embodiment of the present invention determines a driving route by considering noise information, wind speed information, and road surface information received from the external factor detection unit 200 .

For example, it is assumed that the driving vehicle is driving in the first driving mode and a case in which a large dump truck is driving is recognized according to noise information and wind speed information according to the driving environment.

The first driving mode is a mode for providing driving stability to passengers while minimizing acceleration or lane change. However, even if the driving vehicle changes its current driving lane, it is changed to a driving lane as far away from the large dump truck as possible.

In addition, for example, when shaking of the driving vehicle is expected according to wind speed information, the driving speed is further reduced and controlled to be less than the shaking of the preset standard, so that the driving meets the purpose of the first driving mode.

So far, we have looked at mainly the embodiments of the present invention. Those skilled in the art to which the present invention pertains will be able to understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope will be construed as being included in the present invention.

100: occupant state recognition unit 110: driver state recognition unit
120: passenger condition recognition unit 200: external factor detection unit
300: control unit 310: function recommendation unit
320: driving mode determining unit 330: driving route determining unit
400: communication department C: preceding vehicle
A: first vehicle B: second vehicle

Claims (7)

an occupant status recognition unit that acquires status information of the occupant;
a function recommendation unit that receives the passenger's status information and selects a recommended function among available functions;
a driving mode determination unit determining a driving mode by considering the condition information of the occupant; and
A driving route determining unit for determining a driving route of the vehicle by comprehensively considering the driving mode and external factor detection information;
The driving mode determination unit determines a driving mode matching the status information among preset autonomous driving modes in consideration of the occupant's status information, and exchanges information on the driving mode with surrounding vehicles through a communication unit;
The driving route determination unit determines a driving route according to the occurrence of an event by considering the driving mode information of the host vehicle, driving mode information of surrounding vehicles, and external factor detection information.
human autonomous driving system.
According to claim 1,
The occupant state recognition unit includes at least one of an image acquisition unit, a voice acquisition unit, and a device interlocking unit to obtain state information of a driver and a passenger.
human autonomous driving system.
According to claim 2,
The function recommendation unit selects a recommended function to be provided to each passenger according to the state information of the driver and the passenger, and controls the recommended function so that there is no mutual interference.
human autonomous driving system.
According to claim 1,
The function recommendation unit displays the recommended function in the form of a widget in the cluster to provide function control rights.
human autonomous driving system.
delete delete According to claim 1,
The driving route determining unit determines the driving route by considering at least one of ambient noise information, wind speed information, road surface information, and traffic information obtained through an external factor detector.
human autonomous driving system.

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