JP2021072039A - Presentation device - Google Patents

Abstract

To provide a presentation device capable of improving safety driving of a vehicle.SOLUTION: An information presentation system 2 which a vehicle 1 includes is configured such that a control section 16 of a presentation device 14 determines an operational status concerning safety driving on the basis of detection signals Sa1-Sa7 of a detection section 15 for detecting an operational state of a driver. The control section 16, when an operational state by a driver is determined to be unsafe, controls an information presentation section 3 to take an associated expression of negative. The information presentation section 3, in the case of anthropomorphic design, expresses, for example, a weakening mode as the associated expression of negative.SELECTED DRAWING: Figure 1

Description

The present invention relates to a presentation device that presents various types of information through an anthropomorphic information presentation unit.

Conventionally, as a kind of presenting device that presents various information related to driving to occupants such as drivers, an obstacle detection device that detects that a vehicle has approached an obstacle and notifies the driver when driving the vehicle has been used. It is well known (see Patent Document 1 and the like). In this type of obstacle detection device, for example, a proximity sensor provided on the vehicle body detects an approaching state to an obstacle, and when the vehicle approaches an obstacle excessively, for example, a beep sounds to the driver. Notice.

Japanese Unexamined Patent Publication No. 2006-98359

When driving a vehicle, it is important to drive safely to avoid collision with obstacles. For example, if the driver's driving operation itself is unsafe, it will affect surrounding vehicles and pedestrians. There was a problem that smooth traffic could not be secured. Therefore, there is a need to ensure safe driving, for example, by making the driver aware of compassionate driving.

An object of the present invention is to provide a presenting device capable of improving safe driving of a vehicle.

The presenting device that solves the above-mentioned problems determines the driving state related to safe driving based on the detection signal of the detection unit that detects the driving state of the driver, and presents the driver to the driver through anthropomorphic operation. When the information presenting unit is provided with a control unit configured to control the information presentation unit based on the determination, and the control unit determines that the driving state by the driver is unsafe. The information presentation unit is controlled so as to take an expression associated with negative.

According to the present invention, safe driving of the vehicle can be ensured.

The block diagram of the presentation apparatus of one Embodiment. The perspective view which shows the specific structure of the information presentation part. The perspective view which shows an example of the operation of the information presentation part. A flowchart that is executed when raising awareness of safe driving. The perspective view which shows the operation example which promotes the consciousness to safe driving by the information presentation part.

Hereinafter, an embodiment of the presentation device will be described with reference to FIGS. 1 to 5.
As shown in FIG. 1, the vehicle 1 includes an information presentation system 2 that provides various information related to driving to the driver and the occupants in the vehicle. The information presentation system 2 uses an anthropomorphic information presentation unit 3 to present various types of information to the driver and occupants while communicating in an interactive manner to support driving. Driving support includes, for example, alerting to safe driving, providing information that guides the destination to the purpose set by the occupant, and raising awareness of safe driving. The information presentation unit 3 notifies the occupants such as the driver in an interactive manner to call such attention, provide information, and promote awareness of safe driving.

As shown in FIG. 2, the information presentation unit 3 is preferably an anthropomorphic robot. The information presenting unit 3 includes a main body portion 4 forming a body portion and a movable body 5 that can operate with respect to the main body portion 4. The information presentation unit 3 is an interactive anthropomorphic agent capable of communicating through gestures by the movement of the movable body 5. The movable body 5 is a part that moves when expressing emotions in the anthropomorphized information presentation unit 3. The movable body 5 includes, for example, the head 7, eyes 8, eyeball 9, ears 10, and arms 11 of the anthropomorphic agent.

The head 7 has a movement of rotating along the axis L1 extending in the height direction of the information presentation unit 3 (direction of arrow A in the figure) and a movement of the head 7 along the vertical direction (direction of arrow B in the figure). It is formed as possible. The pair of left and right eyes 8 are formed so as to rotate in the vertical direction (in the direction of arrow C in the figure) starting from the vicinity of the eyes so that the expression by the fishing eyes and the descending eyes is possible. The pair of left and right eyeballs 9 are formed so as to move up, down, left, and right (in the direction of the cross arrow D in the figure). The pair of left and right ears 10 are formed so as to move in the vertical direction (in the direction of arrow E in the figure) with the root as a fulcrum. The pair of left and right arm portions 11 are formed so as to move in the vertical direction (in the direction of arrow F in the figure) with the root as a fulcrum. The movable body 5 may take any movement such as swinging, rotating, and sliding.

As shown in FIG. 1, the information presentation system 2 includes a presentation device 14 that controls the operation of the information presentation unit 3. The presenting device 14 includes a control unit 16 that controls the information presenting unit 3 based on the detection signal Sa of the detecting unit 15 that detects the driving state of the driver. The control unit 16 is a computer that performs various calculations such as numerical calculation, information processing, and data processing. The detection unit 15 is, for example, various sensors or switches that detect the state of the driver, the occupant, or the like. The control unit 16 of this example determines the driving state and the running state of the vehicle 1 based on the detection signal Sa input from the detection unit 15, and controls the operation of the information presentation unit 3 based on the determination result.

The detection unit 15 includes a steering operation detection unit 17, an accelerator operation detection unit 18, a brake operation detection unit 19, a front camera 20, a millimeter wave radar 21, a white line recognition camera 22, and a driver monitor camera 23. The steering operation detection unit 17 detects the amount of operation of the steering wheel to be operated during steering, and outputs the detection signal Sa1 to the control unit 16. The accelerator operation detection unit 18 detects the amount of depression of the accelerator pedal of the vehicle 1 and outputs the detection signal Sa2 to the control unit 16. The brake operation detection unit 19 detects the amount of depression of the brake pedal of the vehicle 1 and outputs the detection signal Sa3 to the control unit 16. The front camera 20 takes a picture of the front of the vehicle body and outputs the shooting information Sa4 to the control unit 16. The millimeter wave radar 21 detects a surrounding object by the reflected wave of the irradiated radar, and outputs the detection signal Sa5 to the control unit 16. The white line recognition camera 22 faces the vehicle body side to shoot the white line, and outputs the shooting information Sa6 to the control unit 16. The driver monitor camera 23 photographs the driver in the vehicle and outputs the photographing information Sa7 to the control unit 16.

The control unit 16 includes a sudden operation determination unit 25, an inter-vehicle distance determination unit 26, a vehicle lateral position determination unit 27, and a driver wakefulness determination unit 28. Further, the control unit 16 includes an unsafe driving state determination unit 29 and a control processing unit 30.

The sudden operation determination unit 25 is based on the detection signal Sa1 input from the steering operation detection unit 17, the detection signal Sa2 input from the accelerator operation detection unit 18, and the detection signal Sa3 input from the brake operation detection unit 19. Judge sudden operation during driving. The sudden operation includes, for example, a sudden operation of steering by the steering wheel, a sudden operation of acceleration by the accelerator pedal, a sudden operation of deceleration by the brake pedal, and a combination thereof. The sudden operation determination unit 25 outputs the determination signal Sb1 to the unsafe driving state determination unit 29 as the determination result Sb of the sudden operation determination.

The inter-vehicle distance determination unit 26 determines the distance (inter-vehicle distance) between the other vehicle traveling in front based on the photographing information Sa4 input from the front camera 20 and the detection signal Sa5 input from the millimeter-wave radar 21. To do. In the determination of the inter-vehicle distance, the inter-vehicle distance with the traveling vehicle in front is calculated, and it is determined whether or not this inter-vehicle distance is a sufficient distance. The inter-vehicle distance determination unit 26 outputs a determination signal Sb2 to the unsafe driving state determination unit 29 as a determination result Sb of the inter-vehicle distance determination.

The vehicle lateral position determination unit 27 determines the position in the vehicle width direction during traveling based on the photographing information Sa6 input from the white line recognition camera 22. As for the position determination in the vehicle width direction, for example, it is determined whether or not the distance to the white line of the median strip of the road is sufficient, and the vehicle width distance between the vehicle and other vehicles traveling in the adjacent lane is sufficiently sufficient. It is preferable to determine whether or not the condition is correct. The vehicle lateral position determination unit 27 outputs the determination signal Sb3 to the unsafe driving state determination unit 29 as the determination result Sb of the vehicle width direction position determination.

The driver wakefulness determination unit 28 determines the driver's wakefulness based on the shooting information Sa7 input from the driver monitor camera 23. The driver's wakefulness includes a state of being able to concentrate on driving, such as the degree of drowsiness and the frequency of extra findings. The driver wakefulness determination unit 28 outputs the determination signal Sb4 to the unsafe driving condition determination unit 29 as the determination result Sb of the driver wakefulness determination.

The unsafe driving state determination unit 29 is based on the determination result Sb input from the sudden operation determination unit 25, the inter-vehicle distance determination unit 26, the vehicle lateral position determination unit 27, and the driver awakening state determination unit 28, and the driving state of the vehicle 1. Judge whether it is in an unsafe state. In the case of this example, in determining whether or not the operating state is an unsafe state, it is preferable to use, for example, determination signals Sb1 to Sb4 to make a combined determination. The unsafe driving state determination unit 29 outputs the determination signal Sc to the control processing unit 30 as the determination result of the unsafe driving state determination.

The control processing unit 30 outputs to the information presentation unit Sk a control signal Sk necessary for the information presentation unit 3 to execute an operation of calling attention, providing information, and urging awareness of safe driving related to vehicle driving. For example, when an obstacle or the like exists ahead of the vehicle in the traveling direction, the control processing unit 30 causes the information presentation unit 3 to execute an action of calling attention to avoid the obstacle. Further, when a destination set by the car navigation device in the vehicle exists nearby, the control processing unit 30 causes the information presentation unit 3 to execute an operation of pointing to the position of the destination.

The information presentation unit 3 includes a control unit 33 that controls the operation of the information presentation unit 3. The control unit 33 operates each movable body 5 via a drive unit 34 provided for each movable body 5. The control unit 33 operates the movable body 5 via the drive unit 34 based on the control signal Sk input from the control processing unit 30, thereby alerting the driver, providing information, and consciousness of safe driving. Perform various actions such as prompting. It is preferable that the "gesture" that moves the movable body 5 of the information presenting unit 3 like a human body is used to call attention, provide information, and raise awareness of safe driving.

The information presentation unit 3 has a sound collection unit 35 that collects sounds emitted around the information presentation unit 3, a sound output unit 36 that enables sound output from the information presentation unit 3, and a visual manifestation of intention. It is provided with a display unit 37 that enables it. The sound collecting unit 35 is, for example, a microphone. The sound output unit 36 is, for example, a speaker. When the information presenting unit 3 is an anthropomorphic agent, the display unit 37 is, for example, lighting provided on the agent. The information presentation unit 3 controls the sound collection unit 35, the sound output unit 36, and the display unit 37 to execute communication through voice dialogue with the occupants, call attention, provide information, and promote awareness of safe driving. Execute various notifications such as.

FIG. 3 illustrates an example of the operation of calling attention and providing information by the information presenting unit 3. When the control processing unit 30 recognizes that an obstacle exists in front based on, for example, the detection signal Sa of the front camera 20 or the millimeter wave radar 21, the control processing unit 30 causes the information presentation unit 3 to present the direction of the obstacle ( Attention action). Specifically, the information presenting unit 3 directs the movable body 5 (for example, the eyeball 9 and the arm portion 11) in the direction in which the obstacle exists, and causes the arm portion 11 to perform a beat motion. The beat exercise is an exercise in which the arm portion 11, which is the movable body 5, is repeatedly shaken up and down. At this time, the beat motion may change the motion speed according to the distance to the obstacle so that, for example, the speed is slow when the obstacle is far and the speed is fast when the obstacle is close.

Further, when the control processing unit 30 recognizes that the destination input to the car navigation device exists nearby, for example, the information presenting unit 3 may be made to present the direction of the destination (information providing operation). .. Specifically, when the destination approaches during driving, the information presenting unit 3 directs the movable body 5 (for example, the eyeball 9 or the arm 11) toward the destination, and the destination is close to the destination. Notify the driver, etc. that it exists. At this time, the information presenting unit 3 may notify the driver or the like by a voice announcement from the sound output unit 36 that the destination is near.

As shown in FIG. 1, the control processing unit 30 outputs a control signal Sk1 based on the determination signal Sc input from the unsafe driving state determination unit 29 to the information presentation unit 3, and operates to promote awareness of safe driving. Is executed by the information presentation unit 3. In the case of this example, when the control processing unit 30 determines that the driving state by the driver is unsafe, the control processing unit 30 controls the information presentation unit 3 so as to take an expression associated with a negative. The expression associated with the prediction is preferably, for example, an action that weakens or scares the anthropomorphic information presenting unit 3.

Next, the operation of the presentation device 14 (information presentation system 2) of the present embodiment will be described with reference to FIGS. 4 and 5.
As shown in FIG. 4, in step 101, the control processing unit 30 inputs a determination signal Sc from the unsafe driving state determination unit 29 when the vehicle is traveling. In the case of this example, the unsafe driving state determination unit 29 is based on the detection signal Sa input from the detection unit 15, the accelerator, the brake, the sudden operation and unstable behavior of the steering, the distance from the vehicle in front, the vehicle of the own vehicle. It is determined whether or not the driving is unsafe based on the lateral position in the width direction, the awakening state of the driver, and the like, and the determination signal Sc is output to the control processing unit 30. The unsafe driving state determination unit 29 may determine whether or not the driving state is unsafe by using at least one of the determination signals Sb1 to Sb4 as an element. The control processing unit 30 sequentially monitors the determination signal Sc input from the unsafe driving state determination unit 29 when the vehicle is traveling.

In step 102, the control processing unit 30 determines whether or not the current driving state of the driver is an unsafe driving state based on the determination signal Sc input from the unsafe driving state determination unit 29. In the case of this example, when the control processing unit 30 inputs the determination signal Sc indicating that the operation is unstable from the unsafe driving state determination unit 29, the control processing unit 30 recognizes that the current driving state is the unsafe driving state. If it is determined in step 102 that the vehicle is in an unsafe driving state, the process proceeds to step 103, and if it is determined that the vehicle is not in an unsafe driving state, the process returns to step 101 and the above-mentioned process is repeated again.

In step 103, when the control processing unit 30 recognizes that the current driving state is an unsafe driving state, the control processing unit 30 outputs a control signal Sk1 instructing the execution of an operation reminiscent of a negative to the information presenting unit 3. The information presenting unit 3 executes an operation according to the control signal Sk1 based on the control signal Sk1 input from the control processing unit 30.

FIG. 5 illustrates an example of an operation reminiscent of a negative effect by the information presenting unit 3. The information presenting unit 3 lowers the head 7 downward (in the direction of arrow B1 in the figure) or lowers the eye 8 downward (in the direction of arrow C1 in the same figure) as an action reminiscent of negative emotions. , The ear 10 is lowered downward (in the direction of arrow E1 in the figure). In this way, the information presenting unit 3 takes a posture in which the ears 10 hang down, look down, and weaken. This makes it possible for the driver to be aware of the unsafe driving state and to be aware of compassionate driving in order to return the information presenting unit 3 to the original state.

The information presenting unit 3 may execute an operation reminiscent of a negative number for a predetermined time, or may continuously execute the operation until the unsafe driving is switched to the safe driving. The control unit 33 of the information presenting unit 3 returns the movable body 5 to the original position and returns the information presenting unit 3 to the initial state when the condition that the operation reminiscent of the negative may be terminated is satisfied. That is, the information presenting unit 3 returns to the original normal facial expression and posture when it is time to end the operation reminiscent of the negative.

According to the presentation device 14 of the above embodiment, the following effects can be obtained.
(1) The control unit 16 provided in the presentation device 14 determines the driving state related to safe driving based on the detection signal Sa of the detection unit 15 that detects the driving state of the driver, and anthropomorphic operation. The information presenting unit 3 that presents to the driver through the driver is controlled based on the determination of the driving state. When the control unit 16 determines that the driving state by the driver is unsafe, the control unit 16 controls the information presentation unit 3 so as to take an expression associated with a negative.

According to the configuration of this example, when the driving state of the driver is an unsafe state, it is possible to make the driver notice that the current driving state is unfavorable from the expression associated with the negative by the information presenting unit 3. Become. As a result, the driver is encouraged to drive safely so as to eliminate the negative expression of the information presenting unit 3. Therefore, the safe driving of the vehicle 1 can be improved.

(2) The control unit 16 determines whether or not the driving state is unsafe, using at least one sudden operation of each of the acceleration, braking, and steering operations as a determination element. Therefore, when acceleration, braking, and steering are suddenly operated, the information presenting unit 3 makes the driver aware that the operation is not preferable, and tries to drive without sudden operation. It becomes possible to urge. Therefore, it is possible to avoid unsafe driving caused by these sudden operations.

(3) The control unit 16 determines whether or not the driving state is unsafe, using the distance between the vehicle and another vehicle located in front of the vehicle as a determination factor. Therefore, it is possible to make the driver notice by the presentation of the information presenting unit 3 that the distance from the vehicle in front during traveling is not appropriate, and to correct the distance from the vehicle in front. Therefore, it is possible to avoid unsafe driving due to insufficient distance from the vehicle in front during traveling.

(4) The control unit 16 determines whether or not the driving state is unsafe, using the position in the vehicle width direction during traveling as a determination element. Therefore, it is possible to make the driver notice that the position of the vehicle 1 in the vehicle width direction during traveling is not appropriate by the presentation of the information presenting unit 3 and to correct the position in the vehicle width direction. Therefore, it is possible to avoid unsafe traveling due to an improper position in the vehicle width direction during traveling.

(5) The control unit 16 determines whether or not the driving state is unsafe, using the driver's wakefulness state as a determination element. Therefore, it is possible to make the driver aware that the driver's wakefulness is insufficient by the presentation of the information presenting unit 3 and concentrate on driving. Therefore, it is possible to avoid unsafe driving caused by insufficient wakefulness.

(6) The information presentation unit 3 includes a movable body 5 that is a part that moves when expressing emotions. The control unit 16 shows the driver an expression associated with negative by moving the movable body 5 downward (downward in the installed state). Therefore, when the information presentation unit 3 makes a negative expression, the movable body 5 of the anthropomorphic information presentation unit 3 can be made to move like a part of the human body. Therefore, it is possible to express a negative movement that is easily transmitted to the driver.

(7) The movement of moving the movable body 5 downward is to lower the head 7 downward, the eyes 8 downward, and the ears 10 downward in the anthropomorphic information presentation unit 3. At least one of each movement. In this case, unsafe driving can be accurately notified to driving through movements that are easily associated with negative factors such as weakness and frightening.

In addition, this embodiment can be implemented by changing as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
[Determination of driving conditions related to safe driving]
-The determination of the operating state may be executed based on, for example, the past operating state. For example, if safe driving has always been possible in the past driving, the judgment level is loosened, and if there are many unsafe driving in the past, the judgment level is tightened.

-The operating state may be determined using information acquired through an external network (Internet, etc.).
[Unsafe driving (unsafe driving condition)]
・ Unsafe driving includes rough driving.

・ Unsafe driving includes driving that does not comply with the Road Traffic Act.
・ Unsafe driving includes driving that does not look ahead.
・ Unsafe driving includes a state in which you cannot concentrate on driving.

-Unsafe driving may include a state in which driving is considered unsafe.
[About the detection unit 15 and the detection signal Sa]
The detection unit 15 may include a proximity sensor that detects whether or not the vehicle body has approached an obstacle.

The detection unit 15 is not limited to the members described in the embodiment, and may be sensors or switches that can detect the driving state of the driver.
-As the detection signal Sa, various signals corresponding to the detection unit 15 to be used can be applied.

[About expressions associated with negatives]
The expression associated with the negative of the information presenting unit 3 may be an embodiment using only a predetermined one of the plurality of movable bodies 5.

-The expression associated with the negative of the information presenting unit 3 may be a repetition of the movement of the movable body 5.
The expression associated with the negative of the information presenting unit 3 may be an embodiment using a notification using the sound output unit 36, a visual notification using the display unit 37, or the like.

-The state of the expression associated with negative may be switched according to the level of the unsafe driving state. For example, even if the driving is unsafe, if the degree is low, the expression associated with negative is light, and if the degree of unsafe driving is high, the expression associated with negative is heavy. May be good.

[About Information Presentation Unit 3]
-The information presentation unit 3 is not limited to the one having an anthropomorphic design, and may be any one capable of expressing the movement by the movable body 5.

-The information presentation unit 3 is not limited to a structure that is retrofitted to the vehicle body, and may be a structure that is preliminarily incorporated in the vehicle body.
-The information presentation unit 3 may be a member that does not include the movable body 5 but has only the display unit 37. In this case, an expression associated with negative is realized through the display of the display unit 37.

[About control unit 16]
-The control unit 16 (computer) is not limited to the one that performs software processing for all the processing executed by itself. For example, the control unit 16 may include a dedicated hardware circuit (for example, an integrated circuit for a specific application: ASIC) that performs hardware processing for at least a part of the processing executed by itself. That is, the control unit 16 is 1) one or more processors that operate according to a computer program (software), 2) one or more dedicated hardware circuits that execute at least a part of various processes, or 3). It can be configured as a circuitry including a combination thereof. The processor includes a CPU and a memory such as a RAM and a ROM, and the memory stores a program code or an instruction configured to cause the CPU to execute a process. Memory or computer-readable media includes any available medium accessible by a general purpose or dedicated computer.

The control unit 16 may be arranged anywhere in the vehicle 1. Further, the control unit 16 may be provided as an additional function in the ECU already mounted on the vehicle.

1 ... Information presentation system 3 ... Information presentation unit 5 ... Movable body 7 ... Head 8 ... Eyes 10 ... Ears 14 ... Presentation device 15 ... Detection unit 16 ... Control unit Sa ... Detection signal

Claims (7)

Judging the driving state related to safe driving based on the detection signal of the detection unit that detects the driving state of the driver, and
It is a presentation device including a control unit configured to control an information presentation unit that presents to the driver through anthropomorphic movement based on the determination.
The control unit is a presentation device that controls the information presentation unit so as to take an expression associated with a negative when it is determined that the driving state by the driver is unsafe. The presentation device according to claim 1, wherein the control unit determines whether or not the driving state is unsafe, using at least one sudden operation of each of the acceleration, braking, and steering operations as a determination element. The presentation device according to claim 1 or 2, wherein the control unit determines whether or not the driving state is unsafe, using the distance between the vehicle and another vehicle located in front of the vehicle as a determination element. The presenting device according to any one of claims 1 to 3, wherein the control unit determines whether or not the driving state is unsafe, using the position in the vehicle width direction during traveling as a determination element. The presenting device according to any one of claims 1 to 4, wherein the control unit determines whether or not the driving state is unsafe, using the driver's wakefulness state as a determination element. The information presentation unit includes a movable body that is a moving part when expressing emotions.
The presenting device according to any one of claims 1 to 5, wherein the control unit expresses an expression associated with the negative by moving the movable body downward. The movement of moving the movable body downward is at least one of the movements of lowering the head, lowering the eyes, and lowering the ears in the anthropomorphic information presentation unit. The presentation device according to claim 6.

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