Virtual display method and system for preventing sunlight backflow

Abstract

The application provides a virtual display method and system for preventing sunlight from flowing back, and belongs to the technical field of vehicles. The method is executed by a virtual display system on a vehicle, the virtual display system comprises a plurality of curved mirrors, and one motor corresponds to one curved mirror. The method comprises the following steps: a controller determines a first position where sunlight flows back based on the temperature of a plurality of positions of an image generation module, and determines a first curved mirror corresponding to the first position based on the correspondence between the positions of the image generation module and the curved mirrors; the controller sends a rotating instruction to a motor corresponding to the first curved mirror; and the motor corresponding to the first curved mirror receives the rotating instruction and controls the first curved mirror to rotate based on the rotating instruction. The scheme reduces the risk of burning the display screen caused by sunlight flowing back on the basis of ensuring a large FOV.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a virtual display method and system for preventing sunlight from pouring in. BACKGROUND

[0002] A virtual display system is a system capable of projecting a virtual image of an object in front of a user's field of view, so that the user can conveniently view the object. For example, an ARHUD (Augmented Reality Head Up Display) system can project instrument information and navigation information of a vehicle in front of a driver's field of view, so that the driver can see the instrument information and navigation information in front of the field of view without needing to look down at the instrument panel or the central control display screen under the steering wheel.

[0003] Currently, the FOV (field of view) of a virtual display system is relatively small, and the fusion with the surrounding real scene is not thorough enough, and the AR function cannot be fully realized. If a larger FOV is desired, the curved mirror in the virtual display system needs to be made larger, but this will exacerbate the problem of sunlight pouring in, leading to damage to the display screen of the virtual display system. SUMMARY

[0004] The embodiments of the present application provide a virtual display method and system for preventing sunlight from pouring in, which reduce the risk of display screen burnout caused by sunlight pouring in on the basis of ensuring a larger FOV. The technical solutions are as follows:

[0005] On the one hand, a virtual display method for preventing sunlight from pouring in is provided, which is executed by a virtual display system on a vehicle, the virtual display system comprising a controller, an image generation module, a first mirror group, a second mirror group and a plurality of motors, the second mirror group comprising a plurality of curved mirrors, one motor corresponding to one curved mirror, the controller being configured to control the motor to rotate the corresponding curved mirror, the first mirror group being configured to reflect a light beam emitted by the image generation module and comprising image information to the second mirror group, the second mirror group being configured to reflect the light beam to the front windshield of the vehicle to present a virtual image comprising the image information in front of the front windshield, one curved mirror corresponding to one position of the image generation module and being configured to reflect a light beam emitted at the position; the method comprising:

[0006] The controller determines a first position at which sunlight pours in based on the temperatures of a plurality of positions of the image generation module, and determines a first curved mirror corresponding to the first position based on a correspondence between the positions of the image generation module and the curved mirrors.

[0007] The controller sends a rotation instruction to the motor corresponding to the first curved mirror.

[0008] The motor corresponding to the first curved mirror receives the rotation instruction, and controls the first curved mirror to rotate based on the rotation instruction.

[0009] In a possible implementation, the motor corresponding to the first curved mirror receives the rotation instruction, and controls the first curved mirror to rotate based on the rotation instruction, including:

[0010] The motor corresponding to the first curved mirror controls the first curved mirror to rotate to a second angle in response to receiving the rotation instruction, so that the first curved mirror cannot reflect reflected light to the image generation module.

[0011] In a possible implementation, after the controller sends the rotation instruction to the motor corresponding to the first curved mirror, the method further includes:

[0012] After a time length of sending the rotation instruction reaches a first time length, the temperature corresponding to the first position is acquired.

[0013] If the temperature corresponding to the first position does not decrease, the controller continues to send the rotation instruction to the motor corresponding to the first curved mirror.

[0014] In a possible implementation, the motor corresponding to the first curved mirror receives the rotation instruction, and controls the first curved mirror to rotate based on the rotation instruction, including:

[0015] The motor corresponding to the first curved mirror controls the first curved mirror to rotate to a second angle in response to receiving the rotation instruction, so that the first curved mirror cannot reflect reflected light to the image generation module.

[0016] In a possible implementation, the controller sends a rotation instruction to the motor corresponding to the first curved mirror, including:

[0017] When the first curved mirror is in a working state, the controller sends a first rotation instruction to the motor corresponding to the first curved mirror, where the first rotation instruction is used to instruct the motor to control the first curved mirror to rotate to the first angle in the first direction.

[0018] When the first curved mirror is in a non-working state, the controller sends a second rotation instruction to the motor corresponding to the first curved mirror, where the second rotation instruction is used to instruct the motor to control the first curved mirror to rotate to the second angle.

[0019] In a possible implementation, the image generation module comprises a plurality of display units, and a gap between each display unit is provided with a temperature sensor; the controller determines a first position where sunlight backflow occurs based on temperatures of a plurality of positions of the image generation module, and determines a first curved mirror corresponding to the first position based on a correspondence between positions of the image generation module and the curved mirrors, including:

[0020] The controller receives temperatures measured by the plurality of temperature sensors, and determines a position corresponding to a temperature sensor as the first position where sunlight backflow occurs when a temperature measured by any temperature sensor is greater than a first threshold value.

[0021] The controller determines a first curved mirror corresponding to the temperature sensor of the first position based on a correspondence between the temperature sensors and the curved mirrors.

[0022] In a possible implementation, curvatures of the plurality of curved mirrors are not completely same, and / or the plurality of curved mirrors are arranged on different planes.

[0023] In another aspect, a virtual display system against sunlight backflow is provided, which comprises a controller, an image generation module, a first mirror group, a second mirror group, and a plurality of motors, the second mirror group comprises a plurality of curved mirrors, one motor corresponding to one curved mirror, the controller is configured to control the motor to rotate the corresponding curved mirror, the first mirror group is configured to reflect a light beam comprising image information emitted by the image generation module to the second mirror group, the second mirror group is configured to reflect the light beam to a front windshield of a vehicle to present a virtual image comprising the image information in front of the front windshield, one curved mirror corresponding to one position of the image generation module is configured to reflect a light beam emitted at the position;

[0024] The controller is configured to determine a first position where sunlight backflow occurs based on temperatures of a plurality of positions of the image generation module, and determine a first curved mirror corresponding to the first position based on a correspondence between positions of the image generation module and the curved mirrors.

[0025] The controller is configured to send a rotation instruction to the motor corresponding to the first curved mirror.

[0026] The motor corresponding to the first curved mirror is configured to receive the rotation instruction and control the first curved mirror to rotate based on the rotation instruction.

[0027] In a possible implementation, the motor corresponding to the first curved mirror is configured to control the first curved mirror to rotate by a first angle in a first direction in response to receiving the rotation instruction.

[0028] In a possible implementation, the controller is further configured to acquire a temperature corresponding to the first position after a duration of sending the rotation instruction reaches a first duration.

[0029] The controller is further configured to continue sending the rotation instruction to the motor corresponding to the first curved mirror if the temperature corresponding to the first position does not decrease.

[0030] In a possible implementation, the motor corresponding to the first curved mirror is configured to control the first curved mirror to rotate to a second angle in response to receiving the rotation instruction, so that the first curved mirror cannot reflect reflected light to the image generation module.

[0031] In a possible implementation, the controller is configured to send a first rotation instruction to the motor corresponding to the first curved mirror when the first curved mirror is in a working state, where the first rotation instruction is used to instruct the motor to control the first curved mirror to rotate to the first angle in the first direction.

[0032] The controller is configured to send a second rotation instruction to the motor corresponding to the first curved mirror when the first curved mirror is in a non-working state, where the second rotation instruction is used to instruct the motor to control the first curved mirror to rotate to the second angle.

[0033] In a possible implementation, the image generation module includes a plurality of display units, and a gap between each display unit is provided with a temperature sensor; the controller is configured to receive temperatures measured by the plurality of temperature sensors, and determine a position corresponding to a temperature sensor as a first position where sunlight backflow occurs when a temperature measured by any temperature sensor is greater than a first threshold.

[0034] The controller is configured to determine a first curved mirror corresponding to the temperature sensor of the first position based on a correspondence relationship between the temperature sensor and the curved mirror.

[0035] In a possible implementation, curvatures of the plurality of curved mirrors are not completely same, and / or the plurality of curved mirrors are arranged on different planes.

[0036] In another aspect, a vehicle is also provided, and the vehicle includes the virtual display system according to any of the above implementations.

[0037] In another aspect, a computer readable storage medium is provided, and the computer readable storage medium stores at least one piece of program code, which is loaded and executed by a processor to implement the virtual display method for preventing sunlight backflow according to any of the above implementations.

[0038] In another aspect, a computer program product is provided, which includes at least one program code loaded and executed by a processor to implement the virtual display method for preventing sunlight from backflow as described in any of the above implementation manners.

[0039] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0040] The virtual display method for preventing sunlight from backflow provided by the embodiments of the present application uses a plurality of small curved mirrors to replace a large curved mirror in a virtual display system, and different small curved mirrors are used to display the content at different positions of an image generation module. In this way, the virtual image reflected by the plurality of small curved mirrors is the same as the virtual image reflected by the large curved mirror, so that the horizontal projection area of the virtual display system is ensured to be large. In addition, a motor is configured for each small curved mirror. When sunlight backflow occurs at any position of the image generation module, the small curved mirror causing the sunlight backflow can be determined, the motor of the small curved mirror controls the small curved mirror to rotate, the risk of burning the display screen caused by the sunlight backflow is reduced, and the other small curved mirrors remain unchanged, so that the normal display of the virtual display system is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0042] Figure 1 is a schematic diagram of sunlight backflow provided by the embodiments of the present application;

[0043] Figure 2 is a flowchart of a virtual display method for preventing sunlight from backflow provided by the embodiments of the present application;

[0044] Figure 3 is a schematic diagram of a virtual display system provided by the embodiments of the present application;

[0045] Figure 4 is a schematic diagram of a virtual display system provided by the embodiments of the present application;

[0046] Figure 5 is a schematic diagram of a virtual display system provided by the embodiments of the present application. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0048] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the present application and the accompanying drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. The terms "comprises", "comprising", "includes", "including" and the like are to be construed open- ended, meaning that they include the listed steps or elements, but not excluding other steps or elements. For example, a process, method, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements, but can include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

[0049] The virtual display system provided by the embodiments of the present application comprises a controller, an image generation module, a first mirror group, a second mirror group and a plurality of motors, the second mirror group comprises a plurality of curved mirrors, one motor corresponds to one curved mirror, the controller is configured to control the motor to rotate the corresponding curved mirror, the first mirror group is configured to reflect a light beam emitted by the image generation module and comprising image information to the second mirror group, the second mirror group is configured to reflect the light beam to the front windshield of the vehicle to present a virtual image comprising image information in front of the front windshield, one curved mirror corresponds to one position of the image generation module and is configured to reflect a light beam emitted at the position.

[0050] Since the light path is reversible, the light beam emitted by the image generation module can be emitted to the second mirror group, and the sunlight incident on the second mirror group can also be reflected from the second mirror group to the image generation module, as shown in Figure 1 Therefore, the problem of sunlight backflow occurs.

[0051] In some embodiments, the curvatures of the plurality of curved mirrors are not completely the same. The skilled person can set the content displayed by different positions of the image generation module, and flexibly set the curvatures of different curved mirrors according to the content to be reflected by the curved mirrors. For example, some content needs to be displayed in a larger size, and the corresponding curved mirror can adopt a larger curvature.

[0052] In some embodiments, the plurality of curved mirrors are arranged on different planes. Since the virtual image to be presented has a larger size, a larger curved mirror needs to be used. Therefore, in the embodiments of the present application, a large curved mirror is composed of a plurality of small curved mirrors, and in order to reasonably arrange the space in the vehicle, the plurality of small curved mirrors can be arranged on different planes.

[0053] In some embodiments, the first mirror group comprises a plane mirror, which can be one or a plurality of, and the embodiments of the present application do not limit this.

[0054] In some embodiments, the image generation module, also referred to as a PUG light source, includes a lamp bead, a lamp panel, a screen, a diffusion sheet, a convex lens, etc., wherein the work of the lamp bead is backlight, and the work of the screen is to control and display the display content. The content of the virtual image is controlled and output by the image generation module.

[0055] In some embodiments, the image generation module includes a plurality of display units, and a temperature sensor is arranged at a gap between each display unit. The controller stores a correspondence relationship between the temperature sensor and the curved mirror. The temperature of different positions of the image generation module can be detected based on the temperature sensor, and the curved mirror that needs to be adjusted can be determined based on the temperature sensor that detects a high temperature. The motor of the curved mirror is controlled to rotate the curved mirror, so that the curved mirror no longer pours sunlight into the image generation module.

[0056] Optionally, one display unit corresponds to one curved mirror, and different contents are displayed through different display units and curved mirrors. For example, driving information is displayed on one display unit and one curved mirror; navigation display content is displayed on one display unit and one curved mirror, etc. Of course, the driving information can also be displayed through multiple display units and multiple curved mirrors, and the embodiments of the present application do not limit this.

[0057] In some embodiments, the controller can receive adjustment signals input by switches, cameras, microphones, and adjust the stroke of the motor to move the curved mirror, so as to adjust the position of the virtual image. The camera can input an adjustment signal to the controller according to the hand movement of the driver. For example, the camera detects the driver's hand gesture of waving to the right, and then controls the motor to rotate the curved mirror to the right.

[0058] In some embodiments, the virtual display system further includes an upper shell and a lower shell, wherein the lower shell is provided with a controller, an image generation module, and a first mirror group. The upper shell is provided with a plurality of curved mirrors and a motor corresponding to each curved mirror.

[0059] Figure 2 is a flowchart of a virtual display method for preventing sunlight from pouring in provided by an embodiment of the present application. An embodiment of the present application takes a virtual display system as an example for illustrative description, and the virtual display system includes a controller, an image generation module, a first mirror group, a second mirror group, and a plurality of motors. The second mirror group includes a plurality of curved mirrors, one motor corresponds to one curved mirror, the controller is used to control the motor to rotate the corresponding curved mirror, the first mirror group is used to reflect a light beam emitted by the image generation module and including image information to the second mirror group, the second mirror group is used to reflect the light beam to the front windshield of the vehicle to present a virtual image including image information in front of the front windshield, and one curved mirror corresponds to one position of the image generation module and is used to reflect a light beam emitted at the position. As shown in Figure 2 the method includes:

[0060] 201、the controller determines a first position where the sunlight backflow occurs based on the temperatures of the plurality of positions of the image generation module, and determines a first curved mirror corresponding to the first position based on a correspondence between positions of the image generation module and the curved mirrors.

[0061] The position in the step 201 can be a point or a region, and the embodiments of the present application do not limit the position.

[0062] In a possible implementation, the image generation module includes a plurality of temperature sensors, and the controller determines the temperatures of the plurality of positions of the image generation module through the plurality of temperature sensors. Optionally, the image generation module includes a plurality of display units, and a temperature sensor is arranged in a gap between each display unit. Optionally, the image generation module includes a display screen, and a temperature sensor is arranged at a plurality of positions below the display screen. It should be noted that the embodiments of the present application only exemplarily illustrate the positions of the temperature sensors in the image generation module, and do not limit the positions of the temperature sensors.

[0063] In some embodiments, the controller determines the first position where the sunlight backflow occurs based on the temperatures of the plurality of positions of the image generation module, and determines the first curved mirror corresponding to the first position based on the correspondence between the positions of the image generation module and the curved mirrors, including: the controller receives the temperatures measured by the plurality of temperature sensors, and determines the position corresponding to the temperature sensor as the first position where the sunlight backflow occurs when the temperature measured by any temperature sensor is greater than a first threshold value; and the controller determines the first curved mirror corresponding to the first position of the temperature sensor based on the correspondence between the temperature sensor and the curved mirror. The first threshold value can be any temperature value, and the embodiments of the present application do not limit the first threshold value.

[0064] The correspondence between the temperature sensor and the curved mirror is pre-stored in the controller.

[0065] 202、the controller sends a rotation instruction to the motor corresponding to the first curved mirror.

[0066] In a possible implementation, the controller sends different rotation instructions to the motor corresponding to the first curved mirror based on the working state of the curved mirror.

[0067] In some embodiments, the controller sends the rotation instruction to the motor corresponding to the first curved mirror, including: when the first curved mirror is in a working state, the controller sends a first rotation instruction to the motor corresponding to the first curved mirror, and the first rotation instruction is used to instruct the motor to control the first curved mirror to rotate to a first direction by a first angle; and when the first curved mirror is in a non-working state, the controller sends a second rotation instruction to the motor corresponding to the first curved mirror, and the second rotation instruction is used to instruct the motor to control the first curved mirror to rotate to a second angle.

[0068] The first direction can be any preset direction, for example, upward, downward, leftward, rightward, left-upward, left-downward, right-upward, right-downward, and the like. The first angle can be any preset angle, for example, 5 degrees, 8 degrees, and the like. The second angle is an angle of the curved mirror when the curved mirror cannot reflect sunlight to the image generation module.

[0069] The first curved mirror in the working state means that the first curved mirror needs to reflect the light beam emitted by the image generation module to the front windshield. The first curved mirror in the non-working state means that the first curved mirror does not receive the light beam emitted by the image generation module.

[0070] In some embodiments, the controller can determine whether the first curved mirror is in the working state based on the image generation module. For example, when the first position of the image generation module does not display content, the first curved mirror is in the non-working state; when the first position of the image generation module displays content, the first curved mirror is in the working state.

[0071] It should be noted that the embodiments of the present application only take the rotation of the curved mirror according to the working state of the curved mirror after the occurrence of sunlight backflow as an example to exemplarily illustrate the control of the curved mirror, and in another embodiment, the controller determines the second curved mirror in the non-working state based on the display state of the image generation module, and the controller sends a second rotation instruction to the motor corresponding to the second curved mirror, and the second rotation instruction is used to instruct the motor to control the second curved mirror to rotate to the second angle.

[0072] 203、The motor corresponding to the first curved mirror receives the rotation instruction, and controls the first curved mirror to rotate based on the rotation instruction.

[0073] When the first curved mirror is controlled to rotate, the first curved mirror can be rotated to a position that weakens the sunlight backflow, or the first curved mirror can be directly rotated to a position that cannot cause the sunlight backflow to the image generation module, and the embodiments of the present application do not limit this.

[0074] In a possible implementation, when the first curved mirror is controlled to rotate, the first curved mirror can be rotated to a position that weakens the sunlight backflow. The motor corresponding to the first curved mirror receives the rotation instruction, and controls the first curved mirror to rotate based on the rotation instruction, including: the motor corresponding to the first curved mirror controls the first curved mirror to rotate to the first direction by the first angle in response to receiving the rotation instruction.

[0075] If the sunlight backflow problem is not solved after the first curved mirror is controlled to rotate in the first direction by the first angle, the first curved mirror can continue to be controlled to rotate in the first direction by the first angle until the sunlight backflow problem is solved. Alternatively, after the controller sends the rotation instruction to the motor corresponding to the first curved mirror, the method further includes: obtaining the temperature corresponding to the first position after the sending time length of the rotation instruction reaches the first time length; if the temperature corresponding to the first position does not decrease, the controller continues to send the rotation instruction to the motor corresponding to the first curved mirror. Alternatively, after the controller sends the rotation instruction to the motor corresponding to the first curved mirror, the method further includes: obtaining the temperature corresponding to the first position after the sending time length of the rotation instruction reaches the first time length; if the temperature corresponding to the first position is still greater than the first threshold, the controller continues to send the rotation instruction to the motor corresponding to the first curved mirror.

[0076] The first time length can be any time length, for example, 10 seconds, 30 seconds, 1 minute, etc., and the embodiments of the present application do not limit the first time length.

[0077] Considering that continuously controlling the first curved mirror to rotate in the first direction by the first angle will consume a certain amount of time, in order to avoid the problem of the image generation module being burned out during the rotation of the first curved mirror, the first curved mirror can be controlled to rotate in the first direction by the first angle multiple times first, and if the sunlight backflow problem cannot be solved after multiple rotations, the first curved mirror is controlled to rotate to a position where sunlight cannot be backfed to the image generation module. Alternatively, the controller sends a first rotation instruction to the motor corresponding to the first curved mirror, obtains the temperature corresponding to the first position after the sending time length of the first rotation instruction reaches the first time length, and if the temperature corresponding to the first position does not decrease or the temperature corresponding to the first position is still greater than the first threshold, the controller continues to send the first rotation instruction to the motor corresponding to the first curved mirror; if the controller has continuously sent n first rotation instructions to the motor corresponding to the first curved mirror, and the temperature corresponding to the first position does not decrease or the temperature corresponding to the first position is still greater than the first threshold, the controller sends a second rotation instruction to the motor corresponding to the first curved mirror.

[0078] In another possible implementation, when the first curved mirror is controlled to rotate, the first curved mirror is directly rotated to a position where sunlight cannot be backfed to the image generation module. The motor corresponding to the first curved mirror receives a rotation instruction and controls the first curved mirror to rotate based on the rotation instruction, including: the motor corresponding to the first curved mirror controls the first curved mirror to rotate to a second angle in response to receiving the rotation instruction, so that the first curved mirror cannot reflect sunlight to the image generation module.

[0079] It should be noted that the embodiments of the present application are only illustrated by taking the prevention of sunlight backflow in the working process of the image generation module as an example, and in another embodiment, in response to the vehicle being locked or the virtual display system being powered off, the controller sends a second rotation instruction to the plurality of motors, the second rotation instruction being used to instruct the motor to control the first curved mirror to rotate to a second angle, so as to avoid the possibility that the image generation module is burned when the virtual display system is in an unworking state.

[0080] In addition, the embodiments of the present application illustrate the virtual display method for preventing sunlight backflow by taking the virtual display system as shown in Figures 3 to 5 Figure 3 If a certain temperature sensor on the image generation module is overheated, the curved mirror corresponding to the temperature sensor is rotated to change the incident angle of sunlight on the curved mirror, so that the sunlight is not directly incident on the curved mirror, the situation of sunlight backflow is alleviated, and the temperature on the image generation module is reduced. In this state, the virtual display system can normally display, but the position of the virtual image will change after the curved mirror is rotated.

[0081] If the temperature of the temperature sensor on the image generation module is too high, and the rotation of the curved mirror corresponding to the temperature sensor to change the incident angle of sunlight on the curved mirror cannot solve the problem, the curved mirror is directly rotated to a second angle, so that the curved mirror cannot reflect sunlight to the image generation module, but the curved mirror cannot work normally, that is, the curved mirror cannot reflect the light beam emitted by the image generation module and including image information to the front windshield of the vehicle, and other curved mirrors work normally. Therefore, at this time, part of the curved mirrors of the virtual display system are in a non-working state, and part of the curved mirrors are in a working state (as shown in Figure 4

[0082] When the virtual display system does not need to display, all the curved mirrors can be rotated to the second angle, or when the sunlight is particularly strong, all the curved mirrors have the problem of sunlight backflow, all the curved mirrors can be rotated to the second angle, at this time, the virtual display system is in a non-working state, as shown in Figure 5

[0083] ​​​The virtual display method against sunlight backflow provided by the embodiments of the present application uses a plurality of small curved mirrors to replace a large curved mirror in a virtual display system, different small curved mirrors are used to display the content at different positions of an image generation module, in this way, the virtual image reflected by the plurality of small curved mirrors is the same as the virtual image reflected by the large curved mirror, and the horizontal projection area of the virtual display system is ensured to be large. Moreover, a motor is configured for each small curved mirror, when sunlight backflow occurs at any position of the image generation module, the small curved mirror that causes the sunlight backflow can be determined, the motor of the small curved mirror controls the small curved mirror to rotate, the risk of burning the display screen caused by the sunlight backflow is reduced, and the other small curved mirrors remain unchanged, and the normal display of the virtual display system is ensured.

[0084] The embodiments of the present application also provide a virtual display system against sunlight backflow, the virtual display system comprises a controller, an image generation module, a first mirror group, a second mirror group and a plurality of motors, the second mirror group comprises a plurality of curved mirrors, one motor corresponds to one curved mirror, the controller is configured to control the motor to rotate the corresponding curved mirror, the first mirror group is configured to reflect a light beam emitted by the image generation module and comprising image information to the second mirror group, the second mirror group is configured to reflect the light beam to the front windshield of the vehicle, so as to present a virtual image comprising the image information in front of the front windshield, one curved mirror corresponds to one position of the image generation module, and is configured to reflect the light beam emitted at the position;

[0085] The controller is configured to determine a first position where the sunlight backflow occurs based on the temperatures of the plurality of positions of the image generation module, and determine a first curved mirror corresponding to the first position based on the correspondence between the positions of the image generation module and the curved mirrors.

[0086] The controller is configured to send a rotating instruction to the motor corresponding to the first curved mirror.

[0087] The motor corresponding to the first curved mirror is configured to receive the rotating instruction and control the first curved mirror to rotate based on the rotating instruction.

[0088] In a possible implementation, the motor corresponding to the first curved mirror is configured to control the first curved mirror to rotate by a first angle in a first direction in response to receiving the rotating instruction.

[0089] In a possible implementation, the controller is further configured to acquire the temperature corresponding to the first position after the sending time length of the rotating instruction reaches a first time length.

[0090] The controller is further configured to continue to send the rotating instruction to the motor corresponding to the first curved mirror if the temperature corresponding to the first position does not decrease.

[0091] In a possible implementation, the first curved mirror corresponds to a motor, configured to control the first curved mirror to rotate to a second angle to make the first curved mirror unable to reflect the reflected light to the image generation module in response to receiving a rotation instruction.

[0092] In a possible implementation, the controller is configured to send a first rotation instruction to the motor corresponding to the first curved mirror when the first curved mirror is in the working state, where the first rotation instruction is used to instruct the motor to control the first curved mirror to rotate to a first angle in a first direction.

[0093] The controller is configured to send a second rotation instruction to the motor corresponding to the first curved mirror when the first curved mirror is in the non-working state, where the second rotation instruction is used to instruct the motor to control the first curved mirror to rotate to a second angle.

[0094] In a possible implementation, the image generation module includes a plurality of display units, and a temperature sensor is arranged at a gap between each display unit; the controller is configured to receive temperatures measured by the plurality of temperature sensors, and determine that a position corresponding to a temperature sensor is a first position where sunlight backflow occurs when a temperature measured by any temperature sensor is greater than a first threshold.

[0095] The controller is configured to determine the first curved mirror corresponding to the temperature sensor of the first position based on a corresponding relationship between the temperature sensor and the curved mirror.

[0096] In a possible implementation, curvatures of the plurality of curved mirrors are not completely same, and / or the plurality of curved mirrors are arranged on different planes.

[0097] The embodiment of the present application further provides a vehicle, which includes the virtual display system in any of the above implementations.

[0098] The embodiment of the present application further provides a computer readable storage medium, which stores at least one program code, and the at least one program code is loaded and executed by a processor to implement the virtual display method for preventing sunlight backflow in any of the above implementations.

[0099] The embodiment of the present application further provides a computer program product, which includes at least one program code, and the at least one program code is loaded and executed by a processor to implement the virtual display method for preventing sunlight backflow in any of the above implementations.

[0100] In some embodiments, the computer program involved in the embodiments of the present application can be deployed to execute on one computer device, or on multiple computer devices located in one place, or on multiple computer devices distributed in multiple places and interconnected through a communication network, which can constitute a blockchain system.

[0101] The above merely describes optional embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A virtual display method for preventing sunlight from backflowing, characterized by, The method is executed by a virtual display system on a vehicle, the virtual display system comprising a controller, an image generation module, a first mirror group, a second mirror group and a plurality of motors, the second mirror group comprising a plurality of curved mirrors, one motor corresponding to one curved mirror, the controller being configured to control the motors to rotate the corresponding curved mirrors, the first mirror group being configured to reflect a light beam comprising image information emitted by the image generation module to the second mirror group, the second mirror group being configured to reflect the light beam to a front windshield of the vehicle to present a virtual image comprising the image information in front of the front windshield, one curved mirror corresponding to one position of the image generation module and being configured to reflect a light beam emitted at the position; The curvatures of the plurality of curved mirrors are not completely identical; and the method comprises: The controller determines a first position at which sunlight backflow occurs based on temperatures of a plurality of positions of the image generation module, and determines a first curved mirror corresponding to the first position based on a correspondence between positions of the image generation module and the curved mirrors; When the first curved mirror is in a working state, the controller sends a first rotation instruction to a motor corresponding to the first curved mirror, the first rotation instruction being configured to instruct the motor to control the first curved mirror to rotate by a first angle in a first direction; after a sending duration of the first rotation instruction reaches a first duration, the controller acquires a temperature corresponding to the first position; if the temperature corresponding to the first position does not decrease, the controller continues to send the first rotation instruction to the motor corresponding to the first curved mirror; When the first curved mirror is in a non-working state, the controller sends a second rotation instruction to the motor corresponding to the first curved mirror, the second rotation instruction being configured to instruct the motor to control the first curved mirror to rotate to a second angle, so that the first curved mirror cannot reflect sunlight to the image generation module; The first curved mirror is in the working state when the first curved mirror needs to reflect the light beam emitted by the image generation module to the front windshield, and the first curved mirror is in the non-working state when the first curved mirror does not receive the light beam emitted by the image generation module; The motor corresponding to the first curved mirror receives the rotation instruction sent by the controller and controls the first curved mirror to rotate by an angle indicated by the rotation instruction based on the rotation instruction.

2. The method of claim 1, wherein, The image generation module comprises a plurality of display units, and a temperature sensor is arranged in a gap between each display unit; the controller determines a first position at which sunlight backflow occurs based on temperatures of a plurality of positions of the image generation module, and determines a first curved mirror corresponding to the first position based on a correspondence between positions of the image generation module and the curved mirrors, comprising: The controller receives temperatures measured by a plurality of temperature sensors, and determines a position corresponding to a temperature sensor as the first position at which sunlight backflow occurs when a temperature measured by any temperature sensor is greater than a first threshold value; The controller determines a first curved mirror corresponding to a temperature sensor of the first position based on a correspondence between the temperature sensor and the curved mirrors.

3. The method of claim 1, wherein, The plurality of curved mirrors are arranged on different planes.

4. A virtual display system against sunlight backflow, characterized by, The virtual display system comprises a controller, an image generation module, a first mirror group, a second mirror group and a plurality of motors, the second mirror group comprises a plurality of curved mirrors, one motor corresponds to one curved mirror, the controller is configured to control the motor to rotate the corresponding curved mirror, the first mirror group is configured to reflect a light beam comprising image information emitted by the image generation module to the second mirror group, the second mirror group is configured to reflect the light beam to the front windshield of the vehicle to present a virtual image comprising the image information in front of the front windshield, one curved mirror corresponds to one position of the image generation module and is configured to reflect a light beam emitted at the position; Curvatures of the plurality of curved mirrors are not completely same; The controller is configured to determine a first position where the sunlight backflow occurs based on temperatures of a plurality of positions of the image generation module, and determine a first curved mirror corresponding to the first position based on a correspondence between the positions of the image generation module and the curved mirrors; The controller is configured to send a first rotation instruction to the motor corresponding to the first curved mirror when the first curved mirror is in a working state, the first rotation instruction being configured to instruct the motor to control the first curved mirror to rotate to a first direction by a first angle, and to obtain a temperature corresponding to the first position after a sending time length of the first rotation instruction reaches a first time length, and continue to send the first rotation instruction to the motor corresponding to the first curved mirror if the temperature corresponding to the first position does not decrease. The controller is further configured to send a second rotation instruction to the motor corresponding to the first curved mirror when the first curved mirror is in a non-working state, the second rotation instruction being configured to instruct the motor to control the first curved mirror to rotate to a second angle so that the first curved mirror cannot reflect sunlight to the image generation module. The first curved mirror is in the working state means that the first curved mirror needs to reflect a light beam emitted by the image generation module to the front windshield, and the first curved mirror is in the non-working state means that the first curved mirror does not receive the light beam emitted by the image generation module. The motor corresponding to the first curved mirror is configured to receive a rotation instruction sent by the controller and control the first curved mirror to rotate according to an angle indicated by the rotation instruction.

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