TW201918830A - Virtual reality motion system - Google Patents

Abstract

The present disclosure provides a virtual reality motion system that includes a host computer, a dynamic platform and a plurality of adjustable inflation machines. The host computer communicates a head mounted display, and the dynamic platform is electrically connected to the host computer. The adjustable inflation machines are physically connected to a bottom side of the dynamic platform and are electrically connected to the host computer. While a status of at least one of the adjustable inflation machines changes, the host computer adjusts a viewing angle of a display image of the head mounted display according to a position change of the dynamic platform.

Description

 Virtual reality dynamic system  

The present invention relates to a system, and more particularly to a virtual reality dynamic system.

A head mounted display is a device for displaying images and colors. Usually in the form of an eye mask or a helmet, the display screen is placed close to the user's eyes, and the focal length is adjusted by the optical path to project the image to the eye in a close distance, providing the user with a simulation of the senses such as vision, so that the user feels like walking through the environment. You can observe things in three dimensions in a timely and unrestricted manner.

Excessive use can cause harm to your health. The most widely known phenomenon is called "VR Halo", which means that continuous use of the head-mounted display for more than a period of time (or about 20 minutes) will produce a dizziness-like dizziness. This symptom is caused by the inconsistency between the image seen by the vision and the state of perception inside the body. For example, a person's internal perception of the body feels a step forward, but the visual image does not retreat as expected. Symptoms such as this inconsistent state will cause dizziness for more than a period of time.

It can be seen that the above existing methods obviously still have inconveniences and defects, and need to be further improved. In order to solve the above problems, the relevant fields have not exhausted their efforts to seek solutions, but the methods that have not been applied for a long time have been developed. Therefore, how to reduce or eliminate the dizziness of using a head-mounted display is one of the current important research and development topics, and has become an urgent need for improvement in related fields.

The present invention proposes a virtual reality dynamic system to solve the problems of the prior art.

In an embodiment of the invention, the virtual reality dynamic system of the present invention comprises a host, a dynamic platform and a plurality of adjustable inflatable devices. The host establishes communication with the head mounted display, and the dynamic platform is electrically connected to the host. A plurality of adjustable inflatable devices are physically connected below the dynamic platform and electrically connected to the host. When the state of at least one of the adjustable inflators changes, the host adjusts the viewing angle of the screen displayed by the head mounted display according to the change in the orientation of the dynamic platform.

In an embodiment of the invention, the host executes the program to cause the head mounted display to present content, and the host adjusts the inflated, deflated or maintained state of at least one of the plurality of adjustable inflators based on the information of the content.

In an embodiment of the invention, the host analyzes the optical flow information of the content to obtain a relative motion illusion, and then adjusts the inflation, deflation or maintenance state of at least one of the plurality of adjustable inflatable devices according to the relative motion illusion. .

In an embodiment of the invention, the virtual reality dynamic system further comprises a blower, and the blower is electrically connected to the host. Based on the content, the host determines whether the blower is enabled to blow the dynamic platform.

In an embodiment of the invention, the program is a game program and the content is game content.

In an embodiment of the invention, the motion platform includes an orientation sensor. When the motion platform is displaced by at least one of the plurality of adjustable inflation devices, the orientation sensor measures the translation distance of the motion platform, so that the host adjusts accordingly. The amount of translation of the screen displayed by the head mounted display.

In an embodiment of the invention, the motion platform includes an orientation sensor. When the motion platform is displaced by at least one of the plurality of adjustable inflation devices, the orientation sensor measures the rotation angle of the motion sensing platform, so that the host Adjust the amount of rotation of the screen displayed on the head mounted display accordingly.

In an embodiment of the invention, the motion platform includes a base, a seat and a steering device. The base is disposed on a plurality of adjustable inflatable devices, and the seat is disposed on the base. The operating device is disposed on the base and electrically connected to the host, and the operating device is configured to control at least one object in the screen.

In an embodiment of the invention, the virtual reality dynamic system further comprises a screen, and the screen is electrically connected to the host. The screen displays the same picture as the head-mounted display.

In summary, the technical solution of the present invention has obvious advantages and beneficial effects compared with the prior art. By the virtual reality dynamic system of the present invention, the virtual and physical boundary is traversed, and the adjustable inflating device enables the dynamic platform to up and down, swing back and forth, and shake left and right, not only giving the user a dynamic and exciting experience, but also It can reduce or eliminate the dizziness of using a head-mounted display.

The above description will be described in detail in the following embodiments, and further explanation of the technical solutions of the present invention will be provided.

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

100‧‧‧Virtual Reality Dynamic System

110‧‧‧Host

120‧‧‧dynamic platform

121‧‧‧Base

122‧‧‧ seats

123‧‧‧Control device

124‧‧‧Steering wheel

130‧‧‧Base

131~134, 500‧‧‧ adjustable inflatable device

140‧‧‧ screen

150‧‧‧Blowers

210‧‧‧Azimuth sensor

290‧‧‧ head mounted display

510‧‧‧ solenoid valve

520‧‧‧ gas valve

600‧‧‧ Height Sensor

610‧‧‧Infrared transmitter

620‧‧‧Infrared detection end

700‧‧‧Power feedback system

810‧‧ Air compressor

820‧‧‧Drain valve

The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; 1B is an exploded view of a virtual reality dynamic system according to an embodiment of the present invention; FIG. 2 is a block diagram of a virtual reality dynamic system according to an embodiment of the present invention; FIG. 3A is a diagram according to the present invention; FIG. 3B is a side view of a virtual reality dynamic system in an initial state according to an embodiment of the present invention; FIG. 4 is a side view of the virtual reality dynamic system in an initial state according to an embodiment of the present invention; A side view of a virtual reality dynamic system of an embodiment; and FIGS. 5-8 are partial block diagrams of a virtual reality dynamic system according to an embodiment of the invention.

In order to make the description of the present invention more complete and complete, reference is made to the accompanying drawings and the accompanying drawings. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessarily limiting the invention.

In the scope of the embodiments and claims, the description of "electrical connection" refers to a component that is indirectly electrically coupled to another component through other components, or a component that is directly electrically connected to another component without passing through other components. One component.

In the scope of the embodiments and claims, the description refers to the description of "connection", which may refer to a component being indirectly wired and/or wirelessly communicated with another component through other components, or a component that does not need to pass through other components. Connect to another component.

In the scope of the embodiments and patent applications, unless the context specifically dictates the articles, "a" and "the" may mean a single or plural.

As used herein, "about," "about," or "substantially" is used to modify the amount of any slight change, but such minor changes do not alter the nature. In the embodiment, unless otherwise stated, the error range represented by "about", "about" or "substantially" is generally allowed to be within 20%, preferably 10%. Within, and more preferably within five percent.

1A is a block diagram of a virtual reality dynamic system 100 in accordance with an embodiment of the present invention, and FIG. 1B is an exploded view of a virtual reality dynamic system in accordance with an embodiment of the present invention. As shown in FIGS. 1A and 1B, the virtual reality dynamic system 100 includes a host 110, a dynamic platform 120, a plurality of adjustable inflators 131-134, a screen 140, and a blower 150.

Structurally, a plurality of adjustable inflatable devices 131-134 are physically connected below the dynamic platform 120; specifically, the adjustable inflatable devices 131-134 are disposed at four corners below the dynamic platform 120, whereby the dynamic platform 120 It can be lifted up and down, swinged back and forth, and shaken left and right. For example, the adjustable inflators 131-134 may include an air compressor, an air bag, a solenoid valve, etc., the air compressor supplies gas, and the solenoid valve is used to control the air bag in any suitable gas content state. The host 110 can be a computer host, a large video game host or other computer device. The motion platform 120 can be a human-machine interactive operation platform, and the screen 140 can be a flat display or a curved display.

The motion platform 120 includes a base 121, a seat 122, and a steering device 123. Structurally, the control device 123 is disposed on the base 121. The base 121 is disposed on the plurality of adjustable inflators 131-134, and the seat 122 is disposed on the base 121. For example, the manipulation device 123 may include a steering wheel, a button, a rocker, a brake device, etc., but the invention is not limited by this example.

In use, the user can wear a head mounted display and sit on the seat 122. The host 110 executes a program (eg, a game program) to cause the head mounted display to present content (eg, game content), the screen 140 and the head. The wearable display synchronously displays the same picture (eg, a game screen), and the user can use the control device 123 to control at least one object in the picture (eg, a vehicle in the game). Based on the above, the host 110 determines whether the air blower 150 is enabled to blow the dynamic platform.

The host 110 adjusts the inflated, deflated or maintained state of at least one of the plurality of adjustable inflators 131-134 according to the information of the above content, which not only allows the dynamic platform 120 to be in a state of being inflated and deflated, but also The dynamic platform 120 is maintained at a specific value during the filling of the air.

In a comparative example, the dynamic platform technology is carried out in an inflated manner, and the inflation valve is inflated under specified conditions by the immediate control of the front, back, left and right inclination and height, and then deflated to return to the preset lowest point state after the actuation is completed. This method can only make the platform in the state of completion of inflation and completion of deflation, and can not maintain the platform at a specific value in the middle of filling and deflation.

However, in the virtual reality environment, the player's reaction to the dynamic platform 120 is mostly more sensitive than before, so the dynamic platform 120 needs to have richer and more detailed dynamics to correspond to the user's collisions and events during the play. Encounter, terrain, etc., to achieve the purpose of reducing the user's fainting.

Therefore, in an embodiment of the present invention, the dynamic platform technology of the present invention is performed in a deflated manner, and the preset state of the dynamic platform 120 can be maintained through the adjustable inflation devices 131-134 having inflation, deflation, and maintenance of three functions. At the highest point of the rated, the air is adjusted, and the dynamic platform 120 can be brought to the position by setting the height change (increasing or decreasing) of the four-corner adjustable inflator 131~134, and setting the charging and deflation speed. The person has a slight feeling of shaking and shaking to the sensation of the body.

Compared with the dynamic platform technology in the above comparative example, the adjustable inflators 131-134 of the present invention can not only maintain the four corner heights of the dynamic platform 120 at specific positions, but also the host 110 can control the adjustable inflators 131-134 to inflate or The speed of deflation allows the player to experience more detailed speed changes such as gentle acceleration and sudden acceleration.

2 is a block diagram of a virtual reality dynamic system 100 in accordance with an embodiment of the present invention. As shown in FIG. 2, the dynamic platform 120 and its control device 123 are electrically connected to the host 110. The host 110 is electrically connected to a plurality of adjustable inflators 131-134, a screen 140 and a blower 150. Communication between the host 110 and the head mounted display 290 can be established by wire or wirelessly.

The dizziness often generated by the user during the virtual reality process with the head mounted display 290 varies from person to person. The present invention has two main reasons for the formation of virtual reality sickness: one is in the virtual environment. The specific optical flow pattern produced in the middle will lead to the relative motion illusion (Vection); the second is that the relative motion illusion will conflict with the human vestibular system sensing signal, which will cause dizziness and discomfort. Taking the game as an example, the form of the optical flow pattern is related to the design of the visual representation of the game screen. In the design of the game, the movement of the game lens should be avoided to be different from the daily action perception of the human being, such as moving the screen sideways, retreating, etc. Etc., while the linear oscillation and rotational motion on the vertical axis also produces an uncomfortable relative motion illusion.

In order to quantify the dizziness intensity assessment for the content and picture of the virtual reality, the present invention pre-analyzes and factors the relative motion illusion: the lens motion and the art material adjustment, and converts the image into a visual optical flow. Information, with specific data to compare the specific optical flow pattern that easily induces the user to stun. Accordingly, when the virtual reality dynamic system 100 operates, the host 110 analyzes the optical flow information of the content (eg, game content) to obtain a relative motion illusion, and then adjusts the plurality of adjustable inflation according to the relative motion illusion. At least one of the devices 131-134 is inflated, deflated or maintained.

In practice, optical flow is a clear visual movement that people can feel in the world. The hue, brightness, and flow direction considered in the calculation of the present invention are also related to the lens movement and art material in the development of virtual reality content. The host 110 can perform optical flow information analysis on the recorded image, and the host 110 can compare the optical flow information with the measured dizzy experience to obtain the correlation between the optical flow information and the dizziness experience, thereby quantifying the relative motion illusion.

On the other hand, the head-mounted display 290 can detect the position of the user in the range space by detecting the position of the laser-detecting head-mounted display by the laser positioning device. However, since there is no motion platform 120 following the action in the virtual reality, when the motion platform 120 generates an action and causes the head mounted display to be offset, the angle of view of the screen in the virtual reality will follow the user without any action. The offset causes a situation in which the actual bit of view of the picture is in a position that is different from the position that the user desires to view.

Therefore, in an embodiment of the present invention, when the state of at least one of the adjustable inflators 131-134 is changed, the host 110 adjusts the angle of view of the screen displayed by the head mounted display 290 according to the change in the orientation of the motion platform 120. In order to match the position that the user expects to watch.

In order to instantly sense the change in orientation of the motion platform 120, in FIG. 2, the motion platform 120 includes an orientation sensor 210. Specifically, in an embodiment of the present invention, when the motion platform 120 is displaced by at least one of the plurality of adjustable inflators 131-134, the orientation sensor 210 measures the translation distance of the motion platform 120 to enable the host 110 correspondingly adjusts the amount of translation of the screen displayed by the head mounted display 290; the orientation sensor 210 can also measure the rotation angle of the motion sensing platform 120, so that the host 110 adjusts the rotation of the screen displayed by the head mounted display 290 accordingly. the amount.

In practice, the orientation sensor 210 can be a single sensing component or can be composed of several sensing components (eg, displacement sensing components, angle sensing components, etc.), and those skilled in the art should consider the need at the time. Flexible choice.

For the translation correction, please refer to FIG. 2, FIG. 3A and FIG. 3B simultaneously. FIG. 3A is a side view showing a virtual reality dynamic system in a raised state according to an embodiment of the present invention, and FIG. 3B is an embodiment according to the present invention. A side view of a virtual reality dynamic system in an initial state. When the adjustable inflators 131-134 are all inflated, the motion platform 120 is raised, and the orientation sensor 210 measures the rotation angle to be the same as the initial position, and the host 110 does not need to perform the rotation processing of the head mounted display 290. However, the position sensor 210 measures that the position after the elevation is different from the initial position, and needs to translate downward by a translation distance Xcm back to the initial positioning position, so that the host 110 makes the picture in the virtual reality of the head mounted display 290 The corresponding amount of translation needs to be corrected downward.

Regarding the rotation correction, please refer to FIGS. 2 and 4 simultaneously, and FIG. 4 is a side view of a virtual reality dynamic system 100 according to an embodiment of the present invention. When the adjustable inflators 131, 132 are all deflated, after the motion platform 120 is tilted forward, the orientation sensor 210 measures the rotation angle θ different from the initial angle, and the host 110 rotates the screen of the head mounted display 290 by a corresponding amount of rotation. To return to the initial positioning angle.

On the other hand, the orientation sensor 210 measures that the current position is different from the initial position, and after the rotation changes, the host 110 needs to convert the displacement of the viewing angle of the screen through the rotation matrix of the three-dimensional space, and the host 110 makes the screen of the head mounted display 290. Move the corresponding amount of displacement.

In practice, the virtual reality dynamic system 100 can be a virtual reality racing game machine. The player enters the virtual scene by wearing a head-mounted display device, operates the steering wheel, the throttle, the brakes, and drives the vehicle to run on the combined track. Reach the end point to complete the game experience. The game uses a head-mounted display 290 and a dynamic platform 120 to create a immersive driving experience, which can give instant and corresponding somatosensory feedback according to different scene conditions such as emergencies, road undulations, vacating, landing, and the like.

The game group is mainly for casual players. In order to increase the interactive and interesting game, the present invention uses a virtual co-pilot to guide the game through a seamlessly connected teaching process, so that the player enters the race in an interaction like daily life. Scenes. The virtual co-pilot will give different action and sound response to the player's operation and in response to different competition conditions during the racing process, giving the player a richer play experience.

Game scenes include scenes of different themes such as factories, canyons, parks, ports, etc. Each scene has its own unique style and events, and events on the scene occur randomly and each event is like an action movie. The thrills and thrills of the game, the player's shuttle event is like a movie plot. Some events have the chance of being left and right, so that when the player encounters the same event, they will have different experiences due to different positions, and increase the playability of the track.

In terms of hardware design, the head mounted display 290 is used, and the laser positioning device and the orientation sensor 210 are installed to correct the picture; the vibration seat function and the dynamic platform 120 allow the player to start the engine, collide with the vehicle, and fly the wall. There are front, rear, left and right tilt and vibration reactions to increase the player's sense of presence; and the installation of the blower 150, so that when the player is playing, it is like driving a sports car in the real world, with a refreshing feeling of flying in the wind.

In an embodiment, the air disturbance is an effect added in the present invention, and the purpose is to increase the player's real immersion in the virtual reality, so the host 110 sets the wind speed change in the gear position, so that the player is playing. It can make the body feel around, and accelerate the wind with the wind resistance to come on the face, adding more real feelings.

The size of the throttle affects the speed of the shift, and the size of the gear also affects the change in wind speed.

Referring to FIGS. 2 and 5 simultaneously, the adjustable inflator 500 can be applied to each of the above-described adjustable inflators 131-134. The air compressor 520 is filled with air to raise the dynamic platform 120, and the host 110 sends a signal to control the solenoid valve 510 to change the airflow direction to achieve the function of moving up and down, swinging back and forth, and shaking left and right.

The main game program executed by the host 110 determines the state of the four corner valves 520 of the platform, so that the signal is transmitted to the solenoid valve 510, and the solenoid valve 510 is switched to switch the valve to change the airflow direction to achieve a change in the volume of the valve 520. The motion platform 120 makes a corresponding motion.

In order to control the motion platform 120 to operate, the present invention designs a dynamic platform editor executed by the host 110, using a relative effort of gain and depletion, +1 indicating that the current height is 1 cm, and -1 indicates that the current height is 1 cm. Edit the dynamic platform parameter data by instantly controlling the height of the four corners of the platform through the editor.

Please refer to FIG. 1B and FIG. 6 simultaneously. When the motion platform 120 is in operation, the height sensor 600 detects the measured height value, and the accurate height value can make the motion platform more instantaneous and more accurate when operating, and then confirm the platform. The accuracy of the relevant hardware is crucial. Once the hardware is properly placed, the game can proceed smoothly.

The height sensor 600 emits infrared rays through the infrared emitting end 610, and when it encounters the obstruction, it will return to the infrared detecting end 620, and the voltage value corresponds to the detected distance, and the voltage value is used to obtain the detected object. distance.

Position of height sensor 600: Due to the relationship of the dynamic platform 120, the seat 122 moves, so that the base 130 of the sensor is not moved, and the infrared sensor is emitted from the bottom up to find the height of the current dynamic platform 120. .

Referring to FIGS. 1A and 7 simultaneously, the host 110 transmits the body feeling simulation of the steering wheel 124 through the force feedback system 700. The factors affecting the feedback are as follows: the wheel steering currently input by the wheel, including the angular velocity of the steering wheel, the ground with different grip, the current slip of the tire, and the current positive force of the tire. Based on the above game state parameters, the steering force (Steer Force), spring force (Spring), damping (Damping) and other data required for the I/O board are calculated during the process update, and then transmitted to the I/O board through the RS232 protocol. The /O board converts the current signal to control the motor, which in turn generates a force feedback to the user.

The force feedback system 700 mainly uses the motor output to simulate the effects of various forces. The steering wheel of the main machine can be a single motor output, while the steering wheel used in a general home game machine can have a single motor and a dual motor output, but the present invention does not Limited.

Referring to FIG. 8 at the same time, an air compressor 810, referred to as air compressor 810, is the main body of the adjustable inflator 500, which is a device for converting mechanical energy of a prime mover (usually an electric motor) into gas pressure energy. .

Taiwan is an island-type climate. The relative humidity in the atmosphere is high. The air itself contains a lot of water and gas. As long as the air per unit area is lowered by the temperature or the pressure is increased, the water will be condensed. For example, put a glass of ice in boiling water. On the table, after a period of time, a pile of water drops will condense, and you can see how much water is in the air.

When the air compressor 810 compresses the air, the original volume of the air is reduced, so that a lot of water is generated, and the water must be drained at a proper time, for example, four hours of drainage, so that the rust in the barrel is not caused, and the air compressor can be used for a longer time.

In order to achieve automatic water discharge and maintain the life of the air compressor, the present invention is provided with a drain valve 820, and the program is used to control the timing of the water discharge, without requiring someone to manually perform the draining operation.

The host 110 controls the drain valve 820 to drain water according to the number of play times and the boot time length. Since the dynamic platform in the game will cause the air compressor 810 to pump frequently, the number of game play times and running time are two. To control, as long as one of them meets, we believe that the air compressor 810 needs to be drained.

The player's perspective lens (hereinafter referred to as "Camera") of the head mounted display 290 of the present invention may have an error each time the game is started because the base station in the positioning system judges that the initial position of the head mounted display is different. Therefore, it is necessary to perform zero correction on the head mounted display 290 each time the game is turned on.

The positioning system uses a base station to emit a laser signal, and the head mounted display 290 is provided with a sensor that receives the laser signal, and estimates the coordinate position of the device in space through a relative angle with the base station. The application of the dynamic platform is mainly to increase the user's sense of body is not to let the user change the position during the game. Therefore, if the amount of posture change of the motion platform is not filtered out during the game, the position of the camera in the game may be offset, resulting in a situation in which the actual position of the camera and the expected position of the player are expected to fall.

The height of each user's sitting position is different. During the game, the height of each user's viewing angle cannot be adjusted one by one. The incorrect height will destroy the immersion in the game and make the user feel dizzy. Disgusting experience such as disgusting. Therefore, the project designs the zero-point coordinate position of the display 290 of the present invention on the frame, and sets a 3D model of the real-size frame in the game, so that the player can sit on the seat and wear the head-mounted display 290 to see the picture. The picture in front of the head-mounted display 290 is close to the same, and the distance is close to the real length so that the user can get a more realistic experience. The design goal is to make the user feel what you see is what you get, and to enhance the immersion of the game.

In the world of virtual reality games, motion sickness is the biggest enemy. There are many different ways to solve motion sickness. The "fixed reference point" in the picture is also one of the effective ways to help users overcome the motion sickness. In racing games, the best fixed reference point is the mobile vehicle itself. The relative position of the car body during the game is fixed and becomes quite important.

In order to allow the user's viewing angle to be raised and tilted when the motion platform 120 is touched, the position of the player can be maintained at a normal viewing angle. Therefore, an attitude sensor is mounted on the frame, and the current posture and initiality are obtained through the sensor. The amount of change in the posture is converted into a manner in which the head-mounted display 290 needs to adjust the amount of rotation and the amount of translation, and the posture correction processing is performed on the Camera in the game. In this way, the Camera that originally caused the offset under the motion platform 120 to move back to the position closer to the eyes of the player in the true sitting posture can maintain the game immersion.

In summary, the virtual reality dynamic system 100 of the present invention traverses the virtual and physical boundaries, and the adjustable inflator 131-134 allows the dynamic platform 120 to up and down, swing back and forth, and shake left and right. The user is given a dynamic and stimulating experience, and the dizziness of the head mounted display 290 can be reduced or eliminated.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

Claims (9)

 A virtual reality dynamic system comprising: a host to establish communication with a head mounted display; a dynamic platform electrically connected to the host; and a plurality of adjustable inflatable devices physically connected to the lower side of the dynamic platform and electrically The host is connected to the host. When the state of at least one of the adjustable inflators changes, the host adjusts the viewing angle of the screen displayed by the head mounted display according to the orientation change of the dynamic platform.    The virtual reality dynamic system of claim 1, wherein the host executes a program to cause the head mounted display to present a content, and the host adjusts at least one of the adjustable inflators according to the information of the content Inflate, deflate or maintain state.    The virtual reality dynamic system of claim 2, wherein the host analyzes the optical flow information of the content to obtain a relative motion illusion, and further adjusts at least one of the adjustable inflatable devices according to the relative motion illusion The inflation, the deflation, or the maintenance state of the person.    The virtual reality dynamic system of claim 2, further comprising: a blower electrically connected to the host, the host determining, according to the content, whether the blower is enabled to blow the dynamic platform.    The virtual reality dynamic system of claim 2, wherein the program is a game program, and the content is a game content.    The virtual reality dynamic system of claim 1, wherein the motion platform includes an orientation sensor, wherein the motion sensor is measured when the motion platform is displaced by at least one of the adjustable air intake devices. The translation distance of the dynamic platform enables the host to adjust the amount of translation of the screen displayed by the head mounted display.    The virtual reality dynamic system of claim 1, wherein the motion platform comprises an azimuth sensor, the azimuth sensor quantity measurement when the dynamic platform is displaced by at least one of the adjustable inflators The rotation angle of the dynamic platform is measured, so that the host adjusts the amount of rotation of the screen displayed by the head mounted display.    The virtual reality dynamic system of claim 1, wherein the dynamic platform comprises: a base disposed on the adjustable inflatable devices; a seat disposed on the base; and a control device, the setting And on the pedestal, and electrically connected to the host, the manipulation device is configured to control at least one object in the picture.    The virtual reality dynamic system of claim 1, further comprising: a screen electrically connected to the host, the screen displaying the same picture in synchronization with the head mounted display.