JP2020131921A - Motion sickness suppression device - Google Patents

Abstract

To provide a motion sickness suppression device which can suppress motion sickness by correcting deviation between an equilibrium sense and visual information of an occupant who reads a book and views contents or the like while concurrently feeling acceleration or the like.SOLUTION: A motion sickness suppression device 1 includes a vehicle information acquisition part 3 which acquires vehicle information relating to a vehicle, a map information acquisition part 4 which acquires map information of a traveling place of the vehicle, a head part inclination detection part 5 which detects inclination of a head part of an occupant of the vehicle, and a control part 6 which generates a suppression image for suppressing motion sickness of the occupant on the basis of the vehicle information the vehicle information acquisition part 3 acquires, the map information the map information acquisition part 4 acquires, and the inclination of the head part the head part inclination detection part 5 detects, and displays the suppression image on a display part 15 installed in the vehicle.SELECTED DRAWING: Figure 2

Description

The present invention relates to an agitated disease suppressing device that suppresses an agitated disease of a vehicle occupant.

Acceleration and centrifugal force (angular velocity) are applied to the head of a vehicle such as a vehicle, causing a gap between the information received from the occupant's eyes and the sense of balance of the inner ear (semicircular canals, otoliths), causing confusion in the brain. When it occurs, the occupant suffers from agitation (motion sickness) with symptoms such as nausea, vomiting, cold sweat, facial paleness, agitation, and headache. Conventionally, among the occupants of a vehicle, the driver can predict the acceleration etc. by performing the driving operation by himself / herself, and can adjust the posture to the acceleration etc. applied to himself / herself according to the behavior of the vehicle. The probability of getting sick was low.

However, due to the spread of autonomous driving, when the driver does not perform the driving operation and reads or watches the contents (video, electronic book, etc.) in the same way as the occupants other than the driver, the acceleration etc. is increased as described above. It can be difficult to predict and align, and can increase your chances of getting agitation.

On the other hand, as a device for suppressing motion sickness, there is a vehicle control system described in Patent Document 1. In this system, a display mode of contents is changed according to the behavior of the vehicle and displayed on a display unit of the vehicle. It suppresses motion sickness (sway disease) of occupants.

JP-A-2018-76027

By the way, in the vehicle control system described in Patent Document 1, the upper side (or lower side, right side or left side) portion of the reference image is enlarged and the lower side (or upper side) is based on the predicted future behavior of the vehicle. The adjustment image with the left or right side) is displayed, the adjustment image with the display position of the reference image changed, and the adjustment image with the reference image rotated are displayed. The display control is performed exclusively based on the predicted future behavior, and does not correct the deviation between the visual information of the occupant who actually reads or views the content while receiving acceleration, etc., and the sense of balance. Absent.

The present invention has been made in view of the above circumstances, and corrects a gap between the visual information of an occupant who actually reads a book or watches a content while receiving acceleration or the like and a sense of balance, and suppresses agitation. The challenge is to provide a device that can suppress agitation.

In order to solve the above problems, the sway disease suppressing device according to the present invention includes a vehicle information acquisition unit that acquires vehicle information about a vehicle, a map information acquisition unit that acquires map information of a traveling place of the vehicle, and the vehicle. The tilt detection unit that detects the tilt of the occupant's head, the vehicle information acquired by the vehicle information acquisition unit, the map information acquired by the map information acquisition unit, and the tilt of the head detected by the tilt detection unit. Based on this, it is characterized by including a control unit that generates a suppression image that suppresses the sway disease of the occupant and displays it on the display unit.

The suppression image includes a left-right asymmetrical display that causes the occupant to recognize the inclination of the head, and further causes the occupant to recognize the duration of the inclination of the head by area, length, color, or numerical value. Indication may be included.

Further, the control unit may change the display mode of the suppressed image based on the map information acquired by the map information acquisition unit.

The sway disease suppressing device according to the present invention includes a symptom detection unit that detects the symptom of the sway disease of the occupant, and the control unit displays a mode of displaying the suppression image based on the symptom detected by the symptom detection unit. It may be changed, or the gaze position detecting unit for detecting the gaze position of the occupant is provided, and the control unit displays the suppressed image on the display unit based on the gaze position detected by the gaze position detection unit. It may be displayed.

According to the sway disease suppressing device according to the present invention, it is possible to correct the deviation between the sense of balance and the visual information of the occupant who is actually reading or viewing the content while receiving acceleration or the like, and suppress the sway disease. ..

It is explanatory drawing which shows the sway disease suppressing apparatus which concerns on embodiment for carrying out an invention. It is explanatory drawing which shows the structure of the sway disease suppression apparatus of FIG. It is explanatory drawing which shows the display pattern of the sickness reduction image of the sickness suppression apparatus of FIG. (A) is an explanatory diagram showing an example in which the sickness reduction image is displayed on the head-up display in the display pattern 3 of FIG. 3, and (b) is an explanation showing an example in which the sickness reduction image is displayed in the display pattern 2 of FIG. FIG. 3C is an explanatory diagram showing an example in which a sickness reduction image is displayed in the display pattern 1 of FIG. (A) is an explanatory view showing an example in which the centrifugal force is weak and the sickness reduction image is displayed on the head-up display in the display pattern 3 of FIG. 3, and (b) is the display pattern 1 of FIG. An explanatory diagram showing an example displayed in (c) is an explanatory diagram showing an example in which the sickness reduction image of (b) is displayed at a gaze position of an occupant. (A) is an explanatory diagram showing an example in which an electronic book is displayed on a display, (b) is an explanatory diagram showing an example in which a sickness reduction image is displayed by rotating the display in (a), and (c) is (a). An explanatory diagram showing an example in which the display of (c) is displayed outside the display area due to rotation, (d) is an explanatory diagram showing an example in which the display of (c) is reduced and displayed, and (e) is a display of (c). It is explanatory drawing which shows the example which moved and displayed so that the gaze position of is entered into a display area. It is explanatory drawing which shows the example which the sickness reduction image was displayed on the wearable glass of an occupant.

A mode for carrying out the present invention will be described with reference to the drawings.

As shown in FIG. 1, the sway disease suppressing device 1 according to the present embodiment is provided in the vehicle 2 to suppress the sway disease (motion sickness) of the occupant P, and as shown in FIG. 2, vehicle information. It includes an acquisition unit 3, a map information acquisition unit 4, a head tilt detection unit 5, and a control unit 6.

The vehicle information acquisition unit 3 acquires various vehicle information related to the vehicle 2. Here, the vehicle information acquisition unit 3 includes a vehicle speed sensor 7 that detects the speed of the vehicle 2, an acceleration sensor 8 that detects acceleration in the front-rear direction and the left-right direction of the vehicle 2, and a roll axis, a pitch axis, and a yaw axis of the vehicle 2. The angular velocity sensor 9 for detecting the angular velocity of the vehicle 2, the orientation sensor 10 for detecting the orientation of the vehicle 2, and the camera 11 for photographing the surroundings of the vehicle 2 are connected to each sensor via a network 12 such as CAN (Controller Area Network). And the shooting result of the camera 11 are acquired as vehicle information.

The map information acquisition unit 4 acquires map information of the current traveling location of the vehicle 2 from the navigation system 13. The map information includes the type (general road, expressway), shape, speed limit, and the like of the road where the vehicle travels, and the speed limit and the like indicated on the road sign may be read and acquired by the camera 11.

The head inclination detection unit 5 is connected to a camera 14 that photographs the interior of the vehicle 2, and detects the inclination of the head H from the image captured by the occupant P by the camera 14.

The control unit 6 is connected to a display unit 15 provided on the vehicle 2 and displays an image, and the speed information of the vehicle 2 acquired by the vehicle information acquisition unit 3, the map information acquired by the map information acquisition unit 4, and the head tilt. Based on the inclination of the head H of the occupant P detected by the detection unit 5, a sickness reduction image that suppresses the sway disease of the occupant P is generated and displayed on the display unit 15. Whether the display 15a provided on the instrument panel 16 of the vehicle 2 or the HUD (head-up display) 15b is used for the display unit 15, the wearable glass 15c worn by the occupant P is used. It may be (see FIGS. 4 to 7).

The sickness reduction image includes a left-right asymmetric display that allows the occupant P to recognize the inclination of the head H at that time, and the inclination of the head H is the speed, acceleration or angular velocity of the vehicle 2, the curvature or distance of the curve, etc. Includes a display that allows the occupant P to recognize the duration of the image by area, length, color or numerical value indicating how long it will continue. That is, the duration here means the duration until the curve ends (or the centrifugal force does not work).

FIG. 3 shows a display pattern of a sickness reduction image when the vehicle 2 is traveling on a curve and the head H of the occupant P is tilted to the left. In the display pattern 1, the sickness reduction image Im is on the left side of the upper side and on the right side. Including the display of a trapezoid with a low value, the inclination of the upper side represents the degree of inclination of the head H, and the length from the upper side to the lower side (area of the trapezoid) represents the duration. When the vehicle 2 is traveling on a curve having a large curvature and a long distance (and traveling time), the inclination of the head H is large and the duration is long, so that the sickness reduction image Im has a steep slope on the upper side and a large area. When the vehicle 2 is traveling on a curve with a small curvature and a short distance, the inclination of the head H is small and the duration is short, so that the sickness reduction image Im has a gentle inclination of the upper side. Includes a small area trapezoidal image.

In the display pattern 2, the sickness reduction image Im includes a rectangular bar (bar shape) display in which the left side of the pair of long sides is high and the right side is low, and the inclination of the long side indicates the degree of inclination of the head H, and the length of the long side. The length (area of the rectangle) indicates the duration. When the vehicle 2 is traveling on a curve having a large curvature and a long distance, the inclination of the head H is large and the duration is long. Therefore, the sickness reduction image Im includes a rectangular image having a long side and a steep inclination. When the vehicle 2 is traveling on a curve having a small curvature and a short distance, the inclination of the head H is small and the duration is short. Therefore, the sickness reduction image Im is a rectangular image with a short long side and a gentle inclination. Including.

In the display pattern 3, the sickness reduction image Im includes two bar displays having a high left and a low right on both the left and right sides in the rectangular frame, and the difference in height between the two bars indicates the degree of inclination and the colors of the two bars. Indicates the duration. When the vehicle 2 is traveling on a curve having a large curvature and a long distance, the inclination of the head H is large and the duration is long. Therefore, the sickness reduction image Im has a large difference in height and a conspicuous color (red, etc.). The sickness reduction image Im is high because the inclination of the head H is small and the duration is short when the vehicle 2 is traveling on a curve having a small curvature and a short distance, including images of the two attached bars. Includes images of two bars with a small difference in color (blue, etc.) different from the above.

In the display pattern 4, the sickness reduction image Im includes a display of a pendulum in which a circular weight is drawn on the tip of a straight string hanging from the upper part in a rectangular frame, and the inclination of the string indicates the degree of inclination of the head H. , The length of the string indicates the duration. When the vehicle 2 is traveling on a curve having a large curvature and a long distance, the inclination of the head H is large and the duration is long. Therefore, the sickness reduction image Im includes an image of a pendulum with a long string and a steep inclination. When the vehicle 2 is traveling on a curve having a small curvature and a short distance, the inclination of the head H is small and the duration is short. Therefore, the sickness reduction image Im includes an image of a pendulum with a short string and a gentle inclination.

As shown in FIG. 4, the control unit 6 can display the sickness reduction image Im of each display pattern on the front window shield 17 of the vehicle 2 by the HUD 15b, and based on the map information acquired by the map information acquisition unit 4. , The display mode (display pattern) of the sickness reduction image Im can also be changed. For example, in the automatic driving state of the vehicle 2, when the control unit 6 determines from the map information that the vehicle 2 is traveling on a road having few curves such as a bypass, the control unit 6 does not obstruct the view of the occupant P. The sickness reduction image Im is displayed in the above display pattern 3 in which bars are displayed on both sides of the display area of the HUD15b so as not to cause discomfort or annoyance to the vehicle 2 (Fig. (A)). When it is determined that the vehicle is traveling on a road with more curves, the sickness reduction image Im is displayed in the above display pattern 2 which displays a horizontally long bar so that the occupant P can easily see the vehicle (the same figure (b). )), When it is determined from the map information that the vehicle 2 is traveling on a road with only curves such as a mountain road, the sickness reduction image Im is displayed in the above display pattern 1 using the entire display area of the HUD15b (same as above). Figure (c)).

Further, the control unit 6 can also detect the position where the occupant P gazes by calculation based on the captured image of the camera 14, and display the sickness reduction image Im at the gaze position. For example, as shown in FIG. 5, the control unit 6 has a weak centrifugal force acting on the occupant P (this itself, the speed information or angular velocity information of the vehicle 2 acquired by the vehicle information acquisition unit 3 and the map information acquisition. It can be obtained from the map information acquired by the unit 4.) When it is determined from the detection result of the head inclination detection unit 5 that the inclination of the head H is small, the HUD15b does not obstruct the view of the occupant P. The sickness reduction image Im is displayed in the above display pattern 3 that displays bars on both sides of the display area ((a) in the figure), and the centrifugal force acting on the occupant P is strong, and the head tilt detection unit 5 detects it. When it is determined from the result that the inclination of the head H is large, when the sickness reduction image Im is displayed in the above display pattern 1 using the entire display area of the HUD 15b (Fig. (B)), the head H The sickness reduction image Im when the inclination is large is not displayed at the same position as when the inclination of the head H is small, but is displayed at the gaze position of the occupant P so that the occupant P is strongly aware of the sickness reduction image Im. It may be allowed to do so (Fig. 3C).

On the other hand, when the occupant P displays an electronic book or the like on the display 15a or the like and is reading while the vehicle 2 is automatically driven, the control unit 6 rotates the image displayed on the display 15a or the like. The left-right asymmetrical sickness reduction image Im is displayed. As shown in FIG. 6A, when the vehicle 2 bends and the head H of the occupant P tilts from the state where the text is displayed vertically on the display 15a, the control unit 6 displays the text in FIG. 6B. By rotating the text as shown to obtain the sickness reduction image Im, the occupant P is made to recognize the inclination of the head H. When the text extends beyond the display area of the display 15a as shown in FIG. 15a due to such rotation, the text may be reduced and displayed as shown in FIG. The gaze position of the occupant P is detected from the captured images of 14 and the like, and as shown in the figure (e), the gaze position (in the figure (e), the gaze position is around the character "image" of the "image". ) May be displayed so that it does not extend beyond the display area.

The agitation suppression device 1 according to the present embodiment includes a vehicle information acquisition unit 3 that acquires vehicle information related to the vehicle 2, a map information acquisition unit 4 that acquires map information of the traveling location of the vehicle 2, and an occupant of the vehicle 2. The head inclination detection unit 5 that detects the inclination of the head H of P, the speed information of the vehicle 2 acquired by the vehicle information acquisition unit 3, the map information acquired by the map information acquisition unit 4, and the head inclination detection unit 5 Based on the detected inclination of the head H, a control unit 6 that generates a sickness reduction image Im that suppresses the agitation of the occupant P and displays it on the display unit 15 provided on the vehicle 2 is provided. The occupant P, who is actually reading or viewing the content while receiving acceleration or the like while driving, corrects the deviation between the sense of balance and the visual information by viewing the sickness reduction image Im displayed on the display unit 15. And can suppress agitation.

In each display pattern of FIG. 3, the sickness reduction image Im includes a left-right asymmetric display that allows the occupant P to recognize the inclination of the head H, and the area, length, and the duration of the inclination of the head H to the occupant P. Since it includes a display that is recognized by color or numerical value, the occupant P can intuitively recognize the direction in which his / her head H is tilted and the duration thereof.

Then, as shown in FIG. 4, when the control unit 6 changes the display mode of the sickness reduction image Im based on the map information acquired by the map information acquisition unit 4, the degree of inclination of the head H is increased. The sickness reduction image Im can be displayed in the optimum manner according to the situation of the curve, and even for one curve, the sickness reduction image Im is displayed darkly in the center of the display area at the start of the curve and inserted at the end of the curve. A method may be adopted in which the display becomes thinner as it is hung. Such a change in the display mode of the sickness reduction image Im may be performed based on the symptom detection unit in which the control unit 6 detects the symptom of the sway disease of the occupant P and the symptom detection unit detects the symptom. .. The symptom detection unit can detect the symptoms of agitation by sensing the body of the occupant P (measurement by skin potential such as yawning, sweating amount, heart rate fluctuation, brain wave, respiratory rate, respiratory rhythm, etc.). The accuracy of detecting symptoms may be improved by learning the error between the state of the living body when traveling straight and the state of the living body when sickness is likely to occur. When the symptom detected by the symptom detection unit is severe, the control unit 6 displays the sickness reduction image Im at the center of the display area or at the gaze position of the occupant P so that the occupant P is strongly aware of the sickness reduction image Im. It is desirable to let it.

Further, according to the display mode of FIG. 6, the sickness reduction image Im is only reduced or moved in addition to the rotation of the current display content, and no new image is added. Therefore, the occupant P is present. The inclination of the head H can be recognized while viewing the displayed contents.

Although the embodiments for carrying out the present invention have been illustrated above, the embodiments of the present invention are not limited to those described above, and may be appropriately modified without departing from the spirit of the invention.

For example, in the above embodiment, the head tilt detecting unit 5 detects the tilt of the head H from the image taken by the occupant P by the camera 14, but the pressure of the sensor mounted on the head H and the seat of the vehicle 2 It may be measured / estimated from the sensor, acceleration, steering angle, tire turning angle, accelerator or brake vehicle information, etc., and the control unit 6 may display the duration of the inclination of the head H numerically. It may be estimated in real time by a sensor for sensing outside the vehicle such as a laser or a camera.

Further, as shown in FIG. 7, the display unit 15 may be a wearable glass 15c worn by the occupant P, an information terminal device such as a smartphone used by the occupant P in the vehicle 2, or a head-mounted display. ..

The present invention can also be applied to vehicles other than vehicles, such as ships and trains.

1 Sway disease suppression device 2 Vehicle 3 Vehicle information acquisition unit 4 Map information acquisition unit 5 Tilt detection unit (head tilt detection unit)
6 Control unit (control unit, gaze position detection unit)
15 Display H Head Im Sickness reduction image (suppression image)
P Crew

Claims (6)

The vehicle information acquisition department that acquires vehicle information about the vehicle,
A map information acquisition unit that acquires map information of the driving location of the vehicle, and
An inclination detection unit that detects the inclination of the head of the occupant of the vehicle,
Based on the vehicle information acquired by the vehicle information acquisition unit, the map information acquired by the map information acquisition unit, and the inclination of the head detected by the inclination detection unit, a suppression image for suppressing the sway of the occupant is generated. A sway disease suppressing device characterized by comprising a control unit for displaying on a display unit. The agitation suppression device according to claim 1, wherein the suppression image includes a left-right asymmetric display that causes the occupant to recognize the inclination of the head. The agitation suppression device according to claim 2, wherein the suppression image includes a display that allows the occupant to recognize the duration of the inclination of the head by an area, a length, a color, or a numerical value. The sway disease according to any one of claims 1 to 3, wherein the control unit changes the display mode of the suppressed image based on the map information acquired by the map information acquisition unit. Suppressor. It is equipped with a symptom detection unit that detects the symptom of the occupant's agitation.
The sway disease suppressing device according to any one of claims 1 to 4, wherein the control unit changes the display mode of the suppressed image based on the symptom detected by the symptom detecting unit. .. A gaze position detecting unit for detecting the gaze position of the occupant is provided.
The sway according to any one of claims 1 to 5, wherein the control unit displays the suppressed image on the display unit based on the gaze position detected by the gaze position detection unit. Disease control device.

Images