CN114895788A - Carsickness prevention method, carsickness prevention device, controller and carsickness prevention system - Google Patents
Carsickness prevention method, carsickness prevention device, controller and carsickness prevention system Download PDFInfo
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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Abstract
The invention provides a car sickness prevention method, a car sickness prevention device, a controller and a car sickness prevention system, wherein a panoramic player is started in response to a virtual scene starting instruction sent by a head-mounted VR device to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR device for display; responding to a user head visual angle sent by a head-mounted VR device during virtual scene rendering, and changing the visual angle direction of the panoramic player according to the user head visual angle; and simultaneously acquiring the speed of the vehicle, and changing the visual angle position of the panoramic player according to the speed of the vehicle. According to the invention, the passengers can see the pictures which are consistent with the motion conditions visually sensed by the passengers, so that carsickness is solved, and good riding experience is brought to the passengers.
Description
Technical Field
The invention relates to the technical field of car sickness prevention, in particular to a car sickness prevention method, a car sickness prevention device, a controller and a car sickness prevention system.
Background
In actual life, when a user takes a car, the trouble of car sickness can exist. Related means for preventing carsickness exist at present, such as car sickness prevention through improving surrounding environment, for example, incense car sickness prevention, change of colors in cars, screen brightness and the like; however, this method can only change the distribution environment, and cannot achieve complete coverage.
Another anti-carsickness means is to prevent carsickness by isolating passengers from the surrounding environment, such as an anti-carsickness mask, a nose mask and the like, but the anti-carsickness mask and the like can only relieve carsickness symptoms, have no effect on some people with serious carsickness and have side effects.
Disclosure of Invention
In view of this, the present invention provides a method, an apparatus, a controller and a system for preventing car sickness, which can provide an effective means to prevent car sickness and bring a good riding experience to users.
The invention provides an anti-carsickness method in a first aspect, which comprises the following steps:
responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting a panoramic player to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR equipment for display;
responding to a user head visual angle sent by a head-mounted VR device, and changing the visual angle direction of the panoramic player according to the user head visual angle;
and acquiring the speed of the vehicle, and changing the visual angle position of the panoramic player according to the speed of the vehicle.
A second aspect of the present invention provides an anti-carsickness device comprising:
the virtual scene starting module is used for responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting the panoramic player, rendering a virtual scene and transmitting the virtual scene to a display area of the head-mounted VR equipment for displaying;
the visual angle direction changing module is used for responding to the head visual angle of the user sent by the head-mounted VR equipment and changing the visual angle direction of the panoramic player according to the head visual angle of the user;
and the visual angle position changing module is used for acquiring the speed of the vehicle machine and changing the visual angle position of the panoramic player according to the speed of the vehicle machine.
A third aspect of the invention provides an on-board controller comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, when executing the computer program, implementing the anti-motion sickness method as provided in the first aspect above.
A third aspect of the present invention provides an anti-carsickness system comprising a head-mounted VR device and an onboard controller:
the head-mounted VR equipment is used for responding to a virtual scene starting instruction input by a user and sending the virtual scene starting instruction to the vehicle machine;
the vehicle-mounted controller is used for responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting the panoramic player to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR equipment for display;
the head-mounted VR equipment is also provided with a gyroscope, and the gyroscope is used for acquiring the head visual angle of the user in real time and sending the head visual angle of the user to the vehicle-mounted controller;
the vehicle-mounted controller is also used for responding to the head visual angle of the user sent by the head-mounted VR equipment and changing the visual angle direction of the panoramic player according to the head visual angle of the user;
the vehicle-mounted controller is also used for acquiring a vehicle speed signal and changing the view angle position of the panoramic player according to the vehicle speed signal.
Compared with the prior art, the carsickness prevention method, the carsickness prevention device, the carsickness prevention controller and the carsickness prevention system have the following beneficial effects:
the car sickness prevention method provided by the invention comprises the steps of responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting the panoramic player to render a virtual scene and transmitting the virtual scene to a display area of the head-mounted VR equipment for displaying; responding to a user head visual angle sent by a head-mounted VR device during virtual scene rendering, and changing the visual angle direction of the panoramic player according to the user head visual angle; and simultaneously acquiring the speed of the vehicle, and changing the visual angle position of the panoramic player according to the speed of the vehicle. According to the invention, the passengers can see the pictures which are consistent with the motion conditions visually sensed by the passengers, so that carsickness is solved, and good riding experience is brought to the passengers.
Drawings
FIG. 1 is a schematic flow chart diagram of one embodiment of a method for preventing motion sickness provided by the present invention;
fig. 2 is a block diagram of an embodiment of an anti-motion sickness system provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of the anti-carsickness method provided by the present invention.
The carsickness prevention method provided by the embodiment of the invention is executed by a vehicle end and comprises the following steps of S11-S13:
and S11, responding to the virtual scene starting instruction sent by the head-mounted VR device, and starting the panoramic player to render the virtual scene and transmit the virtual scene to the display area of the head-mounted VR device for display.
In the embodiment of the invention, the vehicle end should be in communication connection with the head-mounted VR device to perform data transmission interaction.
Wherein, wear-type VR equipment is dressed on the passenger, and wear-type VR equipment includes but not limited to VR glasses. When the panoramic player is specifically implemented, the head-mounted VR device is provided with an opening button, a user can send a virtual scene opening instruction by clicking the button and the like, and the vehicle machine starts the panoramic player when receiving the virtual scene opening instruction sent by the head-mounted VR device.
The panoramic player is a video player which is configured on a vehicle machine end and can be used for rendering VR video. Specifically, application software/module for rendering VR is configured on the car machine end, and the software/module includes a packaged panoramic player for controlling the playing of VR video stream.
The vehicle-mounted VR device receives a virtual scene starting instruction, starts the panoramic player and renders the virtual scene, namely plays the video data of the virtual scene and sends the video data of the virtual scene to the display area in the head-mounted VR device for display.
And S12, responding to the head view angle of the user sent by the head-mounted VR device, and changing the view angle direction of the panoramic player according to the head view angle of the user.
In particular, head-mounted VR devices are typically configured with gyroscopes for obtaining body (head) motion parameters of a user. In the embodiment of the invention, the user head visual angle can be obtained by utilizing the user head inclination angle monitored in the gyroscope of the head-mounted VR device, so that the user head visual angle is sent to the vehicle machine, the vehicle machine can adjust the visual angle direction of the current panoramic player according to the user head visual angle, the vision of the user is coordinated with the picture sensed by the eyes of the user as far as possible, and the carsickness can be prevented to a certain extent.
And S13, acquiring the speed of the vehicle, and changing the visual angle position of the panoramic player according to the speed of the vehicle.
Specifically, the vehicle may shake during driving, which may affect the viewing angle of the person, and the virtual scene image may also be affected accordingly, so that the vehicle speed needs to be collected, and the viewing angle position of the panoramic player is changed according to the vehicle speed, that is, the position where the user's vision is located is changed.
Based on the technical scheme provided by the embodiment of the invention, the passenger wears the VR device, renders the virtual scene at the vehicle end and sends the virtual scene to the VR device, so that the passenger can be positioned in the virtual scene to be isolated from the vehicle body environment, and the direction and the position of the visual angle of the user are changed in real time by combining the vehicle body signal and the visual angle of the head of the user, so that the passenger can see the picture which is consistent with the motion condition visually sensed by the passenger, thereby solving the problem of car sickness and further bringing good riding experience to the passenger.
In an embodiment, the step S11, "in response to a virtual scene starting instruction sent by the head-mounted VR device, starting the panoramic player to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR device for display" specifically includes:
responding to a virtual scene starting instruction sent by the head-mounted VR equipment, and starting a panoramic player to call a pre-constructed eyeball model;
and calling an MVP matrix, setting an initial visual angle of the eyeball model as the center of the eyeball model, calling any virtual scene in a prestored virtual scene set to be led into the eyeball model, displaying the virtual scene and transmitting the virtual scene to a display area of the head-mounted VR equipment for displaying.
Specifically, the application software/modules for rendering VR on the in-vehicle machine include a 3D drawing module, which provides 3D rendering capability. When a virtual scene is rendered, a pre-constructed eyeball model is called, virtual scene video data are called from a local virtual scene video storage library and are led into the eyeball model, data to be seen by the left eye and the right eye are rendered, a left eye diagram and a right eye diagram are rendered by using the determined data to be seen by the left eye and the right eye of a user, and the left eye diagram and the right eye diagram are synchronously displayed.
After the eyeball model is called, an initial viewing angle of the eyeball model needs to be set, namely, the user eyeball sees the vision of the virtual scene. Specifically, the view angle can be changed through an opengl (a 3D drawing interface) MVP matrix interface. If the eyeball model is spherical, the MVP can be set at (0,0,0), i.e. the position of the spherical center, so that the initial viewing angle of the eyeball model is the center of the eyeball model.
In one embodiment, the step S12 of "changing the viewing angle direction of the panoramic player according to the head viewing angle of the user" specifically includes:
and changing the direction of the view angle of the panoramic player by using an MVP matrix according to the view angle of the head of the user.
Wherein, the Mvp matrix is a common 3d transformation matrix, and the view angle direction code of the panoramic player is changed by using the MVP matrix as follows: glm:: vec3(bx, by, bz).
In an embodiment, the "changing the viewing angle position of the panoramic player according to the car speed" in step S13 specifically includes:
calculating the acceleration of the vehicle machine according to the speed of the vehicle machine;
and changing the visual angle position of the panoramic player by using an MVP matrix according to the vehicle acceleration.
Specifically, the position of the visual angle of the user is changed through the change of the acceleration of the vehicle.
In one implementation, the carsickness prevention method of the embodiment of the invention further comprises the following steps:
and receiving a virtual scene switching instruction sent by the head-mounted VR device, and switching the virtual scene played by the current panoramic player.
In the embodiment of the invention, a plurality of virtual scene video streams are stored in the virtual scene video database at the vehicle end so as to provide a plurality of virtual scenes. The passenger can switch different scenes such as an animal world, a planet world, a real vehicle 360 panorama and the like through keys.
A second aspect of an embodiment of the present invention provides an anti-carsickness control device, which may be provided in an onboard controller, and includes:
the virtual scene starting module is used for responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting the panoramic player, rendering a virtual scene and transmitting the virtual scene to a display area of the head-mounted VR equipment for displaying;
the visual angle direction changing module is used for responding to the head visual angle of the user sent by the head-mounted VR equipment and changing the visual angle direction of the panoramic player according to the head visual angle of the user;
and the visual angle position changing module is used for acquiring the speed of the vehicle machine and changing the visual angle position of the panoramic player according to the speed of the vehicle machine.
It should be noted that the carsickness prevention control device provided by the embodiment of the present invention is used for executing all steps and flows of the carsickness prevention method of the above embodiment, and working principles and beneficial effects of the two are in one-to-one correspondence, which is not described in detail herein.
Furthermore, the above-described device embodiments are merely illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
A third aspect of embodiments of the present invention provides an on-board controller, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor, when executing the computer program, implements the anti-motion sickness method provided in the above embodiments, for example, S11 to S13 of fig. 1.
A fourth aspect of an embodiment of the present invention provides an anti-carsickness system, including a head-mounted VR device and an onboard controller;
the head-mounted VR equipment is used for responding to a virtual scene starting instruction input by a user and sending the virtual scene starting instruction to the vehicle machine;
the vehicle-mounted controller is used for responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting the panoramic player to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR equipment for display;
the head-mounted VR equipment is also provided with a gyroscope, and the gyroscope is used for acquiring the head visual angle of the user in real time and sending the head visual angle of the user to the vehicle-mounted controller;
the vehicle-mounted controller is also used for responding to the head visual angle of the user sent by the head-mounted VR equipment and changing the visual angle direction of the panoramic player according to the head visual angle of the user;
the vehicle-mounted controller is also used for acquiring a vehicle speed signal and changing the view angle position of the panoramic player according to the vehicle speed signal.
It should be noted that, for a specific process of each step executed by the onboard controller in the carsickness prevention system provided by the embodiment of the present invention, reference may be made to the carsickness prevention method provided in the first aspect of the embodiment of the present invention, as described above, the step of executing, by the onboard controller, "in response to the virtual scene start instruction sent by the head-mounted VR device, starting the panoramic player to render the virtual scene and transmit the virtual scene to the display area of the head-mounted VR device for display" specifically includes:
responding to a virtual scene starting instruction sent by the head-mounted VR equipment, and starting a panoramic player to call a pre-constructed eyeball model;
and calling an MVP matrix, setting an initial visual angle of the eyeball model as the center of the eyeball model, calling any virtual scene in a prestored virtual scene set to be led into the eyeball model, displaying the virtual scene and transmitting the virtual scene to a display area of the head-mounted VR equipment for displaying.
In one embodiment, the onboard controller is provided with a first MAX chip and the head mounted VR device is provided with a second MAX chip; the second MAX chip is connected with a left eye display screen and a right eye display screen of the head-mounted VR device;
when the vehicle-mounted controller renders a virtual scene, rendering the virtual scene of a left eye or a right eye, and sending the rendered virtual scene of the left eye or the right eye to the second MAX chip through the first MAX chip;
the second MAX chip receives the virtual scene data of the first MAX chip, and the virtual scene data are sent to the left eye display screen and the right eye display screen through the second MAX chip, so that a virtual scene graph is synchronously displayed in a left eye display area and a right eye display area of the head-mounted VR device.
Specifically, the first MAX chip and the second MAX chip are serializer and deserializer chipsets provided by westerner, and can realize data transmission such as video and the like through a pair of twisted pair links.
In the embodiment of the invention, the first MAX chip and the second MAX chip are respectively configured on the vehicle-mounted controller and the head-mounted VR equipment to realize the transmission of the virtual scene video stream and the like. Because the MAX chip has a video stream copying function, when the vehicle-mounted device is implemented specifically, the vehicle-mounted device can only render monocular video stream data, the monocular video stream data is transmitted to the second MAX chip by the first MAX chip, and the monocular video stream data is converted into parallel data by the second MAX chip and transmitted to the left-eye display screen and the right-eye display screen, so that left-eye and right-eye display are completely synchronous. The embodiment of the invention utilizes the video stream copying function of the MAX chip to ensure that the left-eye display and the right-eye display are completely synchronous, and can render more precise and real-time scenes only by rendering the monocular video stream, thereby overcoming VR vertigo.
In one embodiment, the head-mounted VR device is provided with a MAX chip, and the MAX chip is used for supplying power to the head-mounted VR device. Specifically, the MAX chip and the second MAX chip used for supplying power to the head-mounted VR device may be the same MAX chip, that is, the MAX chip provided in the head-mounted VR device is used to not only supply power to the head-mounted VR device, but also implement transmission of video, return transmission of data and key signals of the gyroscope I2C, and the like.
In addition, the power supply function of the MAX chip is adopted, a battery does not need to be arranged on the head-mounted VR device, the light weight is achieved, and passengers do not feel uncomfortable after wearing the device for a long time.
Specifically, referring to fig. 2, fig. 2 is a block diagram of a structure of an anti-carsickness system according to an embodiment of the present invention. The VR application comprises an Opengl module, an input flicker module, a sersor hal module and a verhicle hal module; the system comprises a very high-speed vehicle, a very high-speed vehicle and a very high-speed vehicle, wherein the very high-speed vehicle is a software module, all signals are transmitted to the mcu by the can, the mcu is transmitted to a very high-speed vehicle hal module by spi communication, and the very high-speed vehicle hal module analyzes a vehicle speed signal and transmits the vehicle speed signal to a VR application program; the server hal is a software module of a primary processing gyroscope provided by the android, and the input flicker is a software module of a primary processing key provided by the android; opengl is a 3D drawing module that is used to draw virtual scenes. During specific implementation, the head visual angle of a user is sent to the server hall module through a gyroscope on the head-mounted VR device, aidl communication is used by the very hall module, the head visual angle of the user is transmitted to the VR application, acceleration is calculated by the VR application according to a vehicle speed signal, the position of the visual angle of the panoramic player is changed, the direction of the visual angle of the panoramic player is changed according to the head visual angle of the user, so that passengers are immersed in a virtual scene completely, and the passengers can see pictures which are consistent with the motion condition sensed by the passengers visually, and car sickness is prevented.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. An anti-carsickness method, comprising:
responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting a panoramic player to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR equipment for display;
responding to a user head visual angle sent by a head-mounted VR device, and changing the visual angle direction of the panoramic player according to the user head visual angle;
and acquiring the speed of the vehicle, and changing the visual angle position of the panoramic player according to the speed of the vehicle.
2. The anti-motion sickness method as claimed in claim 1, wherein said changing the viewing angle direction of said panoramic player in accordance with said user head viewing angle specifically comprises:
and changing the direction of the view angle of the panoramic player by using an MVP matrix according to the view angle of the head of the user.
3. The carsickness prevention method according to claim 1, wherein the changing of the viewing angle position of the panoramic player according to the car-mounted machine speed specifically comprises:
calculating the acceleration of the vehicle machine according to the speed of the vehicle machine;
and changing the visual angle position of the panoramic player by using an MVP matrix according to the vehicle acceleration.
4. The carsickness prevention method of claim 1, wherein starting a panoramic player in response to a virtual scene opening command sent by the head-mounted VR device to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR device for display comprises:
responding to a virtual scene starting instruction sent by the head-mounted VR equipment, and starting a panoramic player to call a pre-constructed eyeball model;
and calling an MVP matrix, setting an initial visual angle of the eyeball model as the center of the eyeball model, calling any virtual scene in a prestored virtual scene set to be led into the eyeball model, displaying the virtual scene and transmitting the virtual scene to a display area of the head-mounted VR equipment for displaying.
5. The anti-motion sickness method of claim 1, further comprising:
and receiving a virtual scene switching instruction sent by the head-mounted VR device, and switching the virtual scene played by the current panoramic player.
6. An anti-carsickness control device, comprising:
the virtual scene starting module is used for responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting the panoramic player, rendering a virtual scene and transmitting the virtual scene to a display area of the head-mounted VR equipment for displaying;
the visual angle direction changing module is used for responding to the head visual angle of the user sent by the head-mounted VR equipment and changing the visual angle direction of the panoramic player according to the head visual angle of the user;
and the visual angle position changing module is used for acquiring the speed of the vehicle machine and changing the visual angle position of the panoramic player according to the speed of the vehicle machine.
7. An on-board controller comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor when executing the computer program implementing the anti-motion sickness method as claimed in any of claims 1 to 5.
8. An anti-carsickness system is characterized by comprising a head-mounted VR device and an on-board controller;
the head-mounted VR equipment is used for responding to a virtual scene starting instruction input by a user and sending the virtual scene starting instruction to the vehicle machine;
the vehicle-mounted controller is used for responding to a virtual scene starting instruction sent by the head-mounted VR equipment, starting the panoramic player to render a virtual scene and transmit the virtual scene to a display area of the head-mounted VR equipment for display;
the head-mounted VR equipment is also provided with a gyroscope, and the gyroscope is used for acquiring the head visual angle of the user in real time and sending the head visual angle of the user to the vehicle-mounted controller;
the vehicle-mounted controller is also used for responding to the head visual angle of the user sent by the head-mounted VR equipment and changing the visual angle direction of the panoramic player according to the head visual angle of the user;
the vehicle-mounted controller is also used for acquiring a vehicle speed signal and changing the view angle position of the panoramic player according to the vehicle speed signal.
9. The anti-carsickness system of claim 8, wherein the onboard controller is provided with a first MAX chip and the head mounted VR device is provided with a second MAX chip; the second MAX chip is connected with a left eye display screen and a right eye display screen of the head-mounted VR device;
when the vehicle-mounted controller renders a virtual scene, rendering the virtual scene of a left eye or a right eye, and sending the rendered virtual scene of the left eye or the right eye to the second MAX chip through the first MAX chip;
the second MAX chip receives the virtual scene data of the first MAX chip, and the virtual scene data are sent to the left eye display screen and the right eye display screen through the second MAX chip, so that a virtual scene graph is synchronously displayed in a left eye display area and a right eye display area of the head-mounted VR device.
10. The anti-carsickness system of claim 8, wherein the headset VR device is provided with a MAX chip, the MAX chip for powering the headset VR device.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115988247A (en) * | 2022-12-08 | 2023-04-18 | 小象智能(深圳)有限公司 | XR vehicle-mounted film watching system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115988247A (en) * | 2022-12-08 | 2023-04-18 | 小象智能(深圳)有限公司 | XR vehicle-mounted film watching system and method |
| CN115988247B (en) * | 2022-12-08 | 2023-10-20 | 小象智能(深圳)有限公司 | XR vehicle-mounted video watching system and method |
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