JP4892731B2 - Motion sickness prevention recovery device - Google Patents

Description

  The present invention relates to a motion sickness prevention and recovery device that prevents motion sickness such as car sickness or recovers from motion sickness.

  Conventionally, there are drugs for preventing motion sickness such as car sickness, and exerts a strong motion sickness prevention effect by suppressing sensitive nerve action.

In addition, a method for preventing motion sickness has been proposed by presenting information indicating an operation such as turning left or right of a vehicle to a person other than the driver and predicting the operation (for example, Patent Document 1). And 2). In addition, a method for preventing motion sickness has been proposed by showing a route image to a person on a vehicle and curving the tip portion of the route according to acceleration or an operation angle of a steering wheel (patent) Reference 3).
JP 2002-154350 A JP 2003-154900 A JP 2006-130944 A

  However, commercially-available drugs for preventing motion sickness often have the effect of sleeping pills, and there is a side effect that what is taken makes them sleepy and arrives at the destination while sleeping. In addition, the more effective the drug, the drowsiness will continue after arriving at the destination, and the loss of reality for about half a day may occur.

  In the methods described in Patent Documents 1 and 2, even if an operation is perceived, the influence of the vibration of the vehicle on the human body cannot be reduced, and the motion sickness cannot be sufficiently prevented. In addition, this method cannot be recovered once a motion sickness occurs. Furthermore, even in the method described in Patent Document 3, a sufficient motion sickness prevention effect cannot be achieved with an image that merely curves the tip.

  The present invention has been made to solve the above-described problems, and is capable of sufficiently preventing motion sickness or recovering from motion sickness without causing side effects and drowsiness. The purpose is to provide.

  To achieve the above object, the motion sickness prevention and recovery device according to the present invention includes an acceleration sensor that detects the direction and magnitude of acceleration of a vehicle, and a moving image in which an image moves from a predetermined radiation point toward the front of the screen. A moving image generating means for generating a moving image, and a moving image control for controlling the radiation point of the moving image generated by the moving image generating means and the direction of the moving image in accordance with the direction and magnitude of the acceleration detected by the acceleration sensor Means, and output means for outputting the moving image generated by the moving image generating means.

  The motion sickness prevention and recovery device according to the present invention is used inside a vehicle. Inside the vehicle, a moving image in which an image moves from a predetermined radiation point toward the front of the screen is generated by the moving image generation unit and output by the output unit. In addition, an acceleration sensor is installed on the vehicle, and the direction and magnitude of the vehicle acceleration are detected by the acceleration sensor. In accordance with the detected direction and magnitude of the acceleration of the vehicle, the moving image control means controls the radiation point of the moving image generated and output and the direction of the moving image.

  The person on the vehicle can move the eyeball of the person on the vehicle so as not to be motion sick by seeing the moving image. As the movement of the eyeball, for example, generation of nystagmus suitable for the direction and magnitude of acceleration of the vehicle, prevention of excessive movement of the eyeball pulley, and the like can be considered. As a result, the motion sickness prevention and recovery device according to the present invention can sufficiently prevent or recover from motion sickness without causing side effects or drowsiness.

  The moving image control means desirably displays a marker for guiding the viewpoint according to the direction and magnitude of the acceleration detected by the acceleration sensor on the moving image generated by the moving image generation means. According to this configuration, the vision and balance organs of the person on the vehicle can be further prevented from getting motion sickness, and motion sickness can be more reliably prevented or recovered from motion sickness.

  The moving image control means desirably controls the luminance of the moving image generated by the moving image generation means in accordance with the direction and magnitude of acceleration. According to this configuration, it is possible to cause a person on the vehicle to see a moving image only when necessary, that is, when acceleration changes are frequent and vehicle sickness is likely to be induced.

  The motion sickness prevention and recovery device further includes head movement detection means for detecting the movement of the head of a person who rides the vehicle, and the moving image control means adds an acceleration sensor to the moving image generated by the moving image generation means. It is desirable to display information indicating the movement of the head in accordance with the direction and magnitude of the acceleration detected by the head and the movement of the head detected by the head movement detection means. According to this configuration, motion sickness can be more reliably prevented or recovered from motion sickness.

  In the present invention, a moving image that can move an eyeball so as not to get sick is provided for a person on the vehicle. As a result, according to the present invention, it is possible to sufficiently prevent or recover from motion sickness without causing side effects or drowsiness. In addition, by properly tilting the head left and right and back and forth, the direction of acceleration stimulation applied to the vestibular organ and the semicircular canal can be concentrated only in the direction due to normal gravity, reducing the motion sickness induction force, and motion sickness You can increase your resilience.

  Hereinafter, preferred embodiments of a motion sickness prevention and recovery device according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the dimensional ratios in the drawings do not necessarily match those described.

  FIG. 1 is a configuration diagram schematically showing an embodiment of a motion sickness prevention and recovery device 1 according to the present invention. The motion sickness prevention and recovery device 1 according to the present embodiment provides a moving image that prevents a motion sickness and recovers from motion sickness to a person who rides the vehicle. It is a device for preventing sickness and recovering from motion sickness. In the present embodiment, the motion sickness prevention and recovery device 1 is a device that prevents or recovers motion sickness of a passenger 3 riding in a vehicle 2 such as an automobile or a bus. Here, as shown in FIG. 1, the passenger 3 who is the target of prevention and recovery of motion sickness is a person other than the driver of the vehicle 2, such as a person sitting in the rear seat 2a of the vehicle.

  As shown in FIG. 1, the motion sickness prevention and recovery device 1 includes a vehicle acceleration sensor 10, a head acceleration sensor 20, an information processing device 30, and a display 40.

  The vehicle acceleration sensor 10 is an acceleration sensor that detects the shake of the vehicle 2, that is, the direction and magnitude of the acceleration of the vehicle 2. The vehicular acceleration sensor 10 is fixed to a member 2b inside the vehicle 2 so that the shaking of the vehicle 2 can be reliably transmitted. The vehicular acceleration sensor 10 is provided with a direction and the like appropriately set so as to detect in which direction the acceleration is generated with respect to the traveling direction of the vehicle 2. The vehicle acceleration sensor 10 is connected to the information processing device 30 via a cable 50, and outputs information indicating the direction and magnitude of acceleration of the vehicle 2 detected through the cable 50 to the information processing device 30. Specifically, the vehicle acceleration sensor 10 is realized by a device such as a sensor module using a gyroscope.

  The head acceleration sensor 20 is a head movement detecting unit that detects the movement of the head 3 a of the passenger 3 of the vehicle 2. The head acceleration sensor 20 includes a cap 21 as an adapter for the head 3 a of the occupant 3 and an acceleration sensor device 22 fixedly provided on the top of the cap 21. In the head acceleration sensor 20, the cap 21 attached to the head 3 a of the occupant 3 transmits the movement of the head 3 a, that is, the direction and magnitude of the acceleration of the head 3 a to the acceleration sensor device 22, and the acceleration. The sensor device 22 detects the direction and magnitude of the acceleration of the head 3a. The acceleration sensor device 22 is connected to the information processing device 30 via a cable 50, and outputs information indicating the direction and magnitude of the acceleration of the head 3 a detected through the cable 50 to the information processing device 30. Similar to the vehicle acceleration sensor 10, the acceleration sensor device 22 of the head acceleration sensor 20 is specifically realized by a device such as a sensor module using a gyroscope.

  The information processing device 30 is a device that generates a moving image in which an image moves from a predetermined radiation point toward the front of the screen and outputs information of the moving image to the display 40. The information processing apparatus 30 controls the generation of a moving image based on the information on the acceleration input from the vehicle acceleration sensor 10 and the head acceleration sensor 20. The information processing apparatus 30 is configured by hardware such as a CPU (Central Processing Unit) and a memory, and specifically corresponds to a PC (Personal Computer) or the like. The functions described later of the information processing apparatus 30 are exhibited by the operation of these hardware. As illustrated in FIG. 2, the information processing apparatus 30 includes an acceleration input unit 31, a moving image generation unit 32, a moving image control unit 33, and an output unit 34 as functional components. .

  The acceleration input unit 31 is means for inputting acceleration information input from the vehicle acceleration sensor 10 and the head acceleration sensor 20. The acceleration input unit 31 outputs the input acceleration information to the moving image control unit 33.

  The moving image generating unit 32 is a moving image generating unit that generates a moving image in which an image moves from a predetermined radiation point toward the front of the screen. That is, the moving image generation unit 32 generates a moving image that is displayed three-dimensionally with the traveling direction as a viewpoint when the vehicle 2 is moving. Specifically, as shown in FIG. 3, such a moving image includes a portion 101 indicating the ground on which the vehicle travels, portions 102 and 103 indicating left and right wall surfaces, and an upper surface such as the sky. The portions 104 to be shown are each displayed in a planar manner by a perspective projection method, and these portions are moved so as to flow toward the front as indicated by arrows in the drawing. It is assumed that the portion indicating each surface that moves in this manner is moved from a predetermined radiation point. Moreover, it is good also as a thing which each differs in the color of the part which shows each surface. For example, the upper surface 104 may be light blue representing the sky color. In order to express a three-dimensional effect, the back side (portion close to the radiant point) may be darkened to show a shadow, and the front side may be lightened.

  Here, the radiation point (vanishing point) indicates a central point in the perspective projection method. When the shaking of the vehicle 2 is not detected, the radiating point is located substantially at the center of the screen as shown in FIG. Further, in order to make it clearer that the image is moving in the front direction, a band 105 (as a whole, a cylindrical display) perpendicular to the moving direction is displayed on the portions 101 to 104 indicating the respective surfaces. And you may make it approach.

  Such a moving image is a moving image corresponding to the movement of the vehicle 2 when viewed by the passenger 3. The moving image generated by the moving image generating unit 32 may be a moving image that makes the passenger 3 feel as if it is moving forward. Not necessarily. For example, it may be a moving image in which the background is darkened and a shining star approaches from the radiation point. The moving image generation unit 32 outputs the generated moving image to the output unit 34.

  The moving image control unit 33 radiates a moving image generated by the moving image generation unit 32 according to the direction and magnitude of the shake (acceleration) of the vehicle 2 detected by the acceleration sensor 10 and the direction of the moving image. Is a moving image control means for controlling Information indicating the direction and magnitude of the shake (acceleration) of the vehicle 2 as described above is input from the acceleration input unit 31 to the moving image control unit 33.

  For example, when the moving image control unit 33 detects that a leftward swing (swing in the depth direction in FIG. 1) has occurred as viewed from the passenger 3 based on information input from the acceleration input unit 31, 4, the moving image generating unit 32 is controlled to move the radiation point of the moving image from the center to the left side. Further, the degree to which the radiation point is moved is determined according to the magnitude of the centrifugal acceleration. If the centrifugal acceleration is large, it is moved to the left, and if the centrifugal acceleration is small, it is moved to the left. The moving image generation unit 32 generates a moving image based on the control. The moving image control unit 33 controls the moving image generation unit 32 to tilt the image direction to the left. By adjusting the inclination of the head to the inclination of the road surface on this image, it is possible to prevent excessive stimulation from being applied to the vestibular organ and the semicircular canal. The moving image generation unit 32 generates an image constituting the moving image based on the control by the moving image control unit 33.

  In addition, when the moving image control unit 33 detects that a rightward swing (swing toward the front in FIG. 1) has occurred as viewed from the passenger 3 based on information input from the acceleration input unit 31, The image generation unit 32 is controlled to move the radiation point of the moving image from the center to the right side.

  When the moving image control unit 33 detects from the information input from the acceleration input unit 31 that an upward swing has occurred as viewed from the passenger 3, the moving image control unit 33 sends a moving image to the moving image generation unit 32. Control is performed to translate the moving image upward together with the radiation point. When the moving image control unit 33 detects from the information input from the acceleration input unit 31 that an upward swing has occurred as viewed from the passenger 3, the moving image control unit 33 sends a moving image to the moving image generation unit 32. Control is performed to translate the moving image upward together with the radiation point.

  In addition, when the moving image control unit 33 detects that a rearward swing (a swing in the left direction in FIG. 1) has occurred as viewed from the passenger 3 based on information input from the acceleration input unit 31, As shown in FIG. 5A, the moving image generation unit 32 is controlled to move the radiation point of the moving image downward from the center. In this case, the moving image generating unit 32 is controlled to display the marker 106 that guides the viewpoint of the passenger 3 above the moving image. The marker 106 only needs to be a display that draws the viewpoint of the occupant 3. For example, as shown in FIG. 5, a cube image having a color different from that of the image moving toward the front can be used.

  Similarly, the moving image control unit 33 detects, based on information input from the acceleration input unit 31, that a forward swing (swing to the right in FIG. 1) has occurred as viewed from the passenger 3. As shown in FIG. 5B, the moving image generating unit 32 is controlled to move the radiation point of the moving image upward from the center. In this case, the moving image generation unit 32 is controlled to display the marker 106 that guides the viewpoint of the passenger 3 below the moving image.

  Thus, the moving image controlled by the moving image control unit 33 and generated by the moving image generation unit 32 corresponds to the shaking generated in the vehicle 2, and responds to the passenger 3 according to the shaking of the vehicle 2. It is possible to give a visual according to the own shaking. As a result, the eyeball of the passenger 3 causes nystagmus suitable for the direction and magnitude of the acceleration applied to the passenger 3. In addition, it is possible to prevent the pulley oculomotor muscle of the eyeball of the occupant 3 from working excessively, and to focus the acceleration applied to the vestibular organ and the semicircular canal in the direction of stimulation by normal gravity. Accordingly, it is possible to prevent the passenger 3 from causing motion sickness despite the occurrence of shaking.

  Further, when the sight line of the occupant 3 is poured into the displayed marker, the movement of the head due to the change of the sight line reduces the flow and rotation of lymph in the vestibular organ and the semicircular canal of the occupant 3 and 3 can be applied only in the direction of normal gravitational acceleration. Thereby, the prevention effect of the motion sickness of the passenger 3 with respect to shaking can be improved.

  The control of the moving image by the moving image control unit 33 based on the acceleration information input from the head acceleration sensor 20 will be described later.

  The output unit 34 is an output unit that outputs the moving image generated by the moving image generation unit 32 under the control of the moving image control unit 33 to the display 40.

  The display 40 is connected to the information processing apparatus 30 via a cable 50, and is a display unit that displays a moving image input from the information processing apparatus through the cable 50 so that the passenger 3 can see it. The display 40 is provided in the vehicle 2 so that the display part can be seen by the passenger 3. For example, as shown in FIG. 1, the display portion is provided in front of the passenger 3 sitting on the seat 2 a (right side in FIG. 1) so as to face the passenger 3. The display 40, specifically, for example, is realized by a liquid crystal display of about 20 inches. The above is the configuration of the motion sickness prevention recovery device 1.

  Subsequently, the operation of the motion sickness prevention and recovery device 1 according to the present embodiment will be described using the flowchart of FIG. This operation is performed when the passenger 3 gets on the vehicle 2 and the vehicle 2 is driven, and the vehicle 2 is shaken to cause motion sickness. The passenger 3 puts on the cap 21 of the head acceleration sensor 20 in advance when getting on the vehicle 2.

  In the motion sickness prevention recovery apparatus 1, the direction and magnitude of the shake (acceleration) generated in the vehicle 2 are detected by the vehicle acceleration sensor 10 (S01). Information indicating the direction and magnitude of the detected shaking is input from the vehicle acceleration sensor 10 to the acceleration input unit 31 of the information processing device 30. The head acceleration sensor 20 detects the direction and magnitude of the movement (acceleration) of the head 3 a of the passenger 3. Information indicating the direction and magnitude of the detected shaking is input from the head acceleration sensor 20 to the acceleration input unit 31 of the information processing apparatus 30.

  Subsequently, the moving image control unit 33 determines the radiation point of the moving image generated by the moving image generation unit 32 and the direction of the moving image based on the notified information indicating the direction and magnitude of the shaking ( S02). It is also determined whether or not to display a marker as shown in FIG. Information relating to the moving image determined by the moving image control unit 33 is transmitted to the moving image generation unit 32.

  In the moving image generation unit 32, a moving image is generated based on the information related to the moving image determined by the moving image control unit 33 (S03). The moving image generated by the moving image generation unit 32 is output to the display 40 via the output unit 34. On the display 40, the moving image input from the information processing apparatus 30 is displayed toward the passenger 3 (S04). The moving image is displayed so that the radiating point of the moving image and the direction of the moving image controlled by the moving image control unit 33 correspond to the shaking that is the basis of the control. The direction of the moving image includes that determined by the position of the radiation point, and that the bottom surface of the vehicle 2 and the road surface parallel thereto are inclined. A plane perpendicular to the direction in which the centrifugal acceleration and the gravitational acceleration are combined (effective horizontal plane) is displayed so that the passenger 3 can understand.

  At this time, in order to more reliably prevent motion sickness or recover from motion sickness, the occupant 3 adjusts to the inclination of the moving image (the effective horizontal surface in the vehicle, that is, the water surface created by the water in the glass in the vehicle) It is desirable to tilt its own head 3a. For example, if the moving image is as shown in FIG. 4, it is desirable to tilt the head 3 a rearward as viewed from the passenger 3. Therefore, as shown in FIG. 7, it is desirable that the moving image control unit 33 displays information 110 that instructs the movement of the head 3 a on the moving image. Information 110 instructing the movement of the head 3 a is generated according to the direction and magnitude of the acceleration detected by the vehicle acceleration sensor 10 and the movement of the head 3 a detected by the head acceleration sensor 20. . Specifically, for example, when the head movement detected by the head acceleration sensor 20 does not cancel the direction and magnitude of the acceleration detected by the vehicle acceleration sensor 10, the head 3a. The information 110 instructing the movement of the head 3a moves the head 3a so as to cancel it. It is not always necessary to control the head 3a. In that case, the head acceleration sensor 20 may not be included in the motion sickness prevention recovery device 1.

  In addition, a means for notifying the passenger 3 by an audio signal such as headphones is provided, so that the direction of the vehicle 2 is notified, so that the actual inclination of the head 3a of the passenger 3 and the drunkness are not necessary. It is good also as helping the passenger 3's efforts to eliminate the error by letting the sound of the volume corresponding to the error with the correct inclination (the inclination corresponding to the information 110 indicating the movement of the head 3a). .

  The process from the detection of shaking (S02) to the display of moving images (S04) is continuously repeated. For example, the detection of the direction and magnitude of shaking by the vehicle acceleration sensor 10 is performed at regular intervals, for example, every 0.01 seconds, and the above-described operation is performed.

  The moving image control unit 33 controls the luminance of the moving image generated by the moving image generation unit 32 according to the direction and magnitude of the acceleration generated in the vehicle 2 detected by the vehicle acceleration sensor 10. It is desirable. Specifically, for example, when the detected acceleration in the vehicle 2 hardly changes and the speed and direction of the vehicle 2 are constant or stopped, the brightness and contrast of the moving image are reduced. When acceleration is generated in the vehicle 2, it is desirable to increase the luminance and contrast of the moving image to appropriate levels.

  The passenger 3 of the vehicle 2 is shaken according to the shake of the vehicle 2. Normally, when the shaking occurs, the passenger 3 becomes motion sickness, but as described above, the motion sickness is prevented from occurring in the passenger 3 due to the effect of the moving image to prevent the motion sickness. Moreover, when the passenger 3 is already motion sickness, it can be recovered from motion sickness as described above. That is, as described above, the effect of the moving image is an effect on the balanced organ such as the eyeball and the semicircular canal of the passenger 3 when the passenger 3 views the moving image.

  Therefore, according to the motion sickness prevention and recovery device 1 according to the present embodiment, without causing side effects and drowsiness due to the medicine, and effective action against motion sickness with respect to a balanced organ such as an eyeball or a semicircular canal. Therefore, motion sickness can be sufficiently prevented or recovered from motion sickness. Further, by continuously using the motion sickness prevention and recovery device 1, the passenger 3 gets used to motion sickness and does not become motion sick when riding on the vehicle.

  Further, as in this embodiment, if a marker that appropriately moves the eyeball of the occupant 3 is displayed so as not to cause motion sickness, the occupant 3 sees the marker so that the occupant 3 It is possible to further prevent motion sickness from being caused by the vision and balance organs of the vehicle, and more reliably prevent motion sickness or recover from motion sickness.

  In addition, as in the present embodiment, if the brightness of the moving image is controlled according to the direction and magnitude of the acceleration generated in the vehicle 2 detected by the vehicle acceleration sensor 10, prevention of motion sickness is achieved. Alternatively, only when necessary for the recovery effect, the passenger 3 can watch the moving image, and more appropriately prevent motion sickness or recover from motion sickness.

  In the present embodiment, the motion sickness prevention and recovery device 1 prevents or recovers motion sickness for the passenger 3 of the vehicle 2 such as an automobile. However, the vehicle subject to motion sickness is only the vehicle 2. Not limited.

  For example, when a ship is targeted as a vehicle, it is desirable that the moving image is such that the horizon moves. In addition, it is desirable to provide a display not only on the front surface but also on the side surface of the passenger 3 to display a moving image corresponding to the side surface. For example, when acceleration in the vertical direction is detected with respect to the passenger 3 by the acceleration sensor (when the ship yaws), the horizontal line of the front display is moved up and down in the same manner as in the above-described embodiment, and the side display The horizontal plane is to be tilted. When the acceleration sensor detects lateral acceleration with respect to the occupant 3 (when the ship rolls), the horizontal line of the front display is tilted in the same manner as in the above-described embodiment, and the horizontal surface of the side display is displayed. To move up and down. In the above case, the occupant 3 makes an effort to keep an eye on the horizon of the display on the front or side, and if the horizon moves up and down, he tracks it with his eyes while keeping his head fixed. When the horizon is tilted, the head is tilted in synchronization with the direction in which the tilt is canceled. In addition, when acceleration occurs due to a large wave (the ship's shaft direction does not change and the ship's height fluctuates), the horizontal line pattern is continuously changed based on the signal from the acceleration sensor. The nystagmus is caused by moving so that the stripes flow around the position of the horizontal line. The flow speed is determined according to the amount of signal.

  Further, when an airplane is used as a vehicle, the display is the same as that for a ship, but the display only needs to be placed in front of the passenger 3. When a signal from an acceleration sensor such as a gyroscope is used to present a moving image in which vertical stripes move horizontally on the screen according to the amount of rotation, and the passenger 3 follows it and goes out of the screen Returns the eyes to the stripes that appear from the opposite side of the screen, and prompts the movement to track these stripes (to generate nystagmus artificially). The head tilt follows the case of the vehicle described above.

  In addition, the above-described display 40 uses a display capable of displaying a two-dimensional screen such as a PC, a notebook PC, a portable game machine, a mobile phone with a display function, an in-flight TV, a head-mounted display, a goggle-type display, and a wall-mounted video device May be. The display 40 is more effective when it can be stimulated with a large viewing angle. Further, the above-described PC or the like may have not only the function of the display 40 but also the function of the information processing apparatus 30 in the present embodiment.

  In addition, in order to draw the attention by presenting left and right and up and down directions as the traveling direction of the vehicle, it is also effective to provide a sound source with high localization. When turning to the left, it is possible to add a background effect such as playing an appropriate sound from the left channel of stereo sound. Further, the display image itself may be a general television image with contents, or a cartoon that children and the like are interested in.

  In fact, the vehicle is equipped with the motion sickness prevention and recovery device according to the above-described embodiment, and for subjects who are confident that they are prone to get drunk, roads with many hairpin curves, steep hills, frequent repetition of start / stop The effect was tested by scoring the degree of intoxication by driving a car. For all subjects, using this device significantly reduced the sense of sickness compared to when not using it. Even subjects who usually start getting sick after riding within 5 minutes did not get drunk for more than an hour.

It is a figure which shows the structure of the motion sickness prevention recovery apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of the information processing apparatus contained in the motion sickness prevention recovery apparatus. It is the figure which showed the example of the screen displayed on the display with which the motion sickness prevention recovery apparatus is provided. It is the figure which showed another example of the screen displayed on the display with which the motion sickness prevention recovery apparatus is provided. It is the figure which showed another example of the screen displayed on the display with which the motion sickness prevention recovery apparatus is provided. It is a flowchart which shows operation | movement of the motion sickness prevention recovery apparatus which concerns on embodiment of this invention. It is the figure which showed another example of the screen displayed on the display with which the motion sickness prevention recovery apparatus is provided.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Motion sickness prevention recovery apparatus, 2 ... Vehicle, 3 ... Passenger, 3a ... Head, 10 ... Vehicle acceleration sensor, 20 ... Head acceleration sensor, 30 ... Information processing apparatus, 31 ... Acceleration input part, 32 ... moving image generation unit, 33 ... moving image control unit, 34 ... output unit, 40 ... display.

Claims (4)

An acceleration sensor for detecting the direction and magnitude of acceleration of the vehicle;
A moving image generating means for generating a moving image in which the image moves in a forward direction of the screen from a predetermined radiation point;
A moving image control means for controlling the radiation point of the moving image generated by the moving image generation means and the direction of the moving image according to the direction and magnitude of the acceleration detected by the acceleration sensor;
Output means for outputting the moving image generated by the moving image generating means;
A motion sickness prevention recovery device comprising.   The moving image control means displays a marker for guiding a viewpoint according to the direction and magnitude of the acceleration detected by the acceleration sensor on the moving image generated by the moving image generation means. Item 2. The motion sickness prevention and recovery device according to Item 1.   3. The motion sickness prevention according to claim 1, wherein the moving image control unit controls the luminance of the moving image generated by the moving image generation unit according to the direction and magnitude of the acceleration. Recovery device. The motion sickness prevention recovery device further comprises a head movement detection means for detecting the movement of the head of a person riding on the vehicle,
The moving image control means adds the direction and magnitude of acceleration detected by the acceleration sensor and the movement of the head detected by the head movement detecting means to the moving image generated by the moving image generation means. 4. The motion sickness prevention and recovery device according to claim 1, wherein information indicating the movement of the head is displayed in response.