Anti-peeping method and device for vehicle-mounted projection screen, electronic equipment and storage medium

Abstract

The invention discloses a peep-proof method and device for a vehicle-mounted projection screen, electronic equipment and a storage medium. The method comprises the steps that a peep-proof instruction is received; based on the peep-proof instruction, determining a target peep-proof area on the vehicle-mounted projection screen; performing first roughening treatment on the target peep-proof area to enable the target peep-proof area to enter a peep-proof mode; the roughness of the target peep-proof area after the first roughening treatment is greater than the wavelength of a projection light source. According to the scheme, dynamic peep prevention is achieved by adjusting the roughness of the target peep-proof area of the vehicle-mounted projection screen, privacy can be effectively protected, safety can be effectively improved, the intelligent level of the vehicle can be further improved, the driving experience of a user can be improved, and diversified application requirements are met.

Description

Technical Field

[0001] The present application relates to the field of display technology, and relates to but is not limited to a method, device, electronic device and storage medium for preventing peeping of a vehicle-mounted projection screen. Background Art

[0002] The automotive industry is developing rapidly towards intelligence, electrification and digitization, and automotive design has also ushered in a huge reform. At present, with the development of intelligent cockpits, the frequency of vehicle display devices is gradually increasing. Vehicle display devices (such as central control screens) based on flat panel display technologies such as LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode Display) have great limitations in vehicle applications due to fixed positions, size restrictions and aesthetic design.

[0003] As the manufacturing level of the automobile industry continues to improve, vehicle-mounted projection technology continues to evolve. In-vehicle projection products using laser projection technology have now appeared, which meet users' needs for audio and video entertainment and have unique advantages in display design and performance. However, in order to meet diverse application needs, in-vehicle projection products still have room for improvement in anti-peep functions. Summary of the invention

[0004] The present application provides a method, device, electronic device and storage medium for preventing peeping of a vehicle-mounted projection screen, which can effectively protect privacy and improve safety, further improve the intelligence level of the vehicle and enhance the user's driving experience, and meet diverse application needs.

[0005] The technical solution of this application is implemented as follows:

[0006] In a first aspect, the present application provides a method for preventing peeping of a vehicle-mounted projection screen, the method comprising:

[0007] Receive anti-peeping instructions;

[0008] Based on the anti-peeping instruction, determining a target anti-peeping area on the vehicle-mounted projection screen;

[0009] A first roughening process is performed on the target anti-peeping area to make the target anti-peeping area enter an anti-peeping mode; the roughness of the target anti-peeping area after the first roughening process is greater than the wavelength of the projection light source.

[0010] In some embodiments, a vibration element is disposed on the first surface of the vehicle-mounted projection screen, and the performing a first roughening process on the target anti-peeping area includes:

[0011] A vibration element corresponding to the target privacy protection area is turned on to make the roughness of the target privacy protection area greater than the wavelength of the projection light source.

[0012] In some embodiments, the vehicle-mounted projection screen is pre-roughened by a second roughening treatment; the roughness of the vehicle-mounted projection screen after the second roughening treatment is smaller than the wavelength of the projection light source; wherein the second roughening treatment is different from the first roughening treatment.

[0013] In some embodiments, performing the second roughening process includes:

[0014] A surface treatment process is performed on the vehicle-mounted projection screen to make the roughness of the vehicle-mounted projection screen smaller than the wavelength of the projection light source.

[0015] In some embodiments, the method further comprises:

[0016] Determining the anti-peeping level of the target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction;

[0017] According to the privacy protection level, the difference between the roughness of the target privacy protection area and the wavelength of the projection light source is adjusted so that the target privacy protection area enters a privacy protection mode corresponding to the privacy protection level.

[0018] In some embodiments, adjusting the difference between the roughness of the target privacy protection area and the wavelength of the projection light source includes:

[0019] The amplitude of the vibration element and / or the wavelength of the projection light source are adjusted.

[0020] In some embodiments, the vibration element is a vibrator motor.

[0021] In a second aspect, the present application provides an anti-peeping device for a vehicle-mounted projection screen, comprising:

[0022] A receiving unit, used for receiving an anti-peeping instruction;

[0023] A determination unit, configured to determine a target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction;

[0024] The processing unit is used to control the vibration element to perform a first roughening process on the target anti-peeping area, so that the target anti-peeping area enters an anti-peeping mode; the roughness of the target anti-peeping area after the first roughening process is greater than the wavelength of the projection light source.

[0025] In a third aspect, the present application provides an electronic device, comprising: a memory and a processor; the memory stores a computer program that can be run on the processor, and the processor implements the above-mentioned anti-peeping method of the vehicle-mounted projection screen when executing the computer program.

[0026] In a fourth aspect, the present application further provides a storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the anti-peeping method of the above-mentioned vehicle-mounted projection screen is implemented.

[0027] The present application discloses an anti-peeping method, device, electronic device and storage medium for a vehicle-mounted projection screen, the method comprising: receiving an anti-peeping instruction; determining a target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction; performing a first roughening process on the target anti-peeping area to put the target anti-peeping area into an anti-peeping mode; the roughness of the target anti-peeping area after the first roughening process is greater than the wavelength of the projection light source.

[0028] In the solution of the present application, dynamic anti-peeping is achieved by adjusting the roughness of the target anti-peeping area of ​​the vehicle-mounted projection screen, which can not only effectively protect privacy and improve safety, but also further improve the intelligence level of the vehicle and enhance the user's driving experience, and meet diverse application needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a first optional flow chart of a method for preventing peeks of a vehicle-mounted projection screen provided in an embodiment of the present application;

[0030] Figure 2 An optional schematic diagram of a method for preventing peeping of a vehicle-mounted projection screen provided in an embodiment of the present application;

[0031] Figure 3 A second optional flow chart of a method for preventing peeping of a vehicle-mounted projection screen provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram of an optional structure of the anti-peeping device of the vehicle-mounted projection screen provided in an embodiment of the present application;

[0033] Figure 5 An optional structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0035] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0036] In the following description, the terms "first\second\third" are used only as examples to distinguish different objects, and do not represent a specific order for the objects, nor do they have a limitation on the order of precedence. It is understandable that "first\second\third" can be interchanged with a specific order or order of precedence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0038] Embodiments of the present application provide a method, device, electronic device, and storage medium for preventing peeping of a vehicle-mounted projection screen.

[0039] Figure 1 An optional flow chart of the anti-peeping method of the vehicle-mounted projection screen provided in the embodiment of the present application. Figure 1 As shown, the specific steps of the anti-peeping method of the vehicle-mounted projection screen include:

[0040] Step S101, receiving an anti-peeping instruction.

[0041] The anti-peeping instruction refers to an instruction for instructing the vehicle equipment to perform anti-peeping on the vehicle projection screen. The specific type and content of the anti-peeping instruction are not limited in the embodiment of the present application, and can be set according to actual conditions.

[0042] The vehicle equipment may be any vehicle equipment. The specific type of the vehicle equipment is not limited in the present embodiment of the application, and it can be set according to the actual situation. For example, the vehicle equipment may be a fuel vehicle, a pure electric vehicle, a hybrid vehicle, etc.

[0043] In some embodiments, the anti-peeping instruction is triggered autonomously by the user or is generated under specific triggering conditions.

[0044] Exemplarily, the user directly issues an anti-peeping instruction through a control panel, a touch screen, or an application program interface of the vehicle device. For example, the user switches to anti-peeping mode by clicking a specific button on the screen or in the device settings.

[0045] In some embodiments, when a user wishes to protect sensitive information (such as personal data, business secrets, etc.) displayed on the vehicle projection screen from being viewed by others, the user may trigger the anti-peeping command on their own initiative. For example, when the vehicle projection screen displays vehicle navigation information or the driver's private communications, the anti-peeping command may be used to protect such information from being viewed by passengers or bystanders.

[0046] For example, the vehicle device can automatically detect changes in the environment or usage scenario through built-in sensors and trigger the anti-peeping function accordingly. For example, the vehicle device can detect the actual driving speed of the vehicle through built-in sensors. When the actual driving speed of the vehicle is greater than the preset driving speed, an anti-peeping instruction can be generated to prevent the vehicle projection screen from interfering with the driver's line of sight, thereby improving driving safety.

[0047] Exemplarily, the anti-peeping instruction may also be sent through a remote control system, for example, by a system administrator or a remote monitoring center. In this case, the anti-peeping instruction may be transmitted to the vehicle device via a network or wireless communication.

[0048] Step S102: determining a target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction.

[0049] In some embodiments, the anti-peeping instruction includes at least the location information of the target anti-peeping area, that is, based on the anti-peeping instruction, the specific area of ​​the target anti-peeping area on the vehicle-mounted projection screen can be determined.

[0050] In some embodiments, the in-vehicle projection screen can be applied to the central control screen or the rear seat entertainment screen.

[0051] In some embodiments, when the vehicle-mounted projection screen is used for the central control screen, the target anti-peeping area can be the visible area of ​​the main driver's seat or the visible area of ​​the co-pilot seat, that is, it can more flexibly and safely meet the needs of users in different usage scenarios, and improve the overall user experience and safety. In actual use, the target anti-peeping area can be determined according to actual needs.

[0052] In some embodiments, in order to protect the driver's privacy and ensure that sensitive information on the vehicle display screen (such as navigation routes, driving data, vehicle status, etc.) is visible only to the driver, the target anti-peeping area on the vehicle projection screen is set to the visible area of ​​the co-pilot seat to increase the driver's comfort and sense of security, while reducing the risk of information leakage or theft.

[0053] In some embodiments, for driving safety reasons, when the actual driving speed of the vehicle is greater than the preset driving speed, the target anti-peeping area on the vehicle projection screen is set as the visible area of ​​the main driver's seat to reduce interference with the driver's line of sight, thereby improving driving safety.

[0054] Step S103, performing a first roughening process on the target privacy protection area to make the target privacy protection area enter a privacy protection mode; the roughness of the target privacy protection area after the first roughening process is greater than the wavelength of the projection light source.

[0055] Roughness can be understood as surface roughness, which is used to characterize the unevenness of small spacing and tiny peaks and valleys of a processed surface (such as the surface of a vehicle-mounted projection screen). For example, a surface roughness meter can be used to measure the surface of the vehicle-mounted projection screen to obtain its roughness.

[0056] In some embodiments, the material of the vehicle-mounted projection screen includes but is not limited to white plastic screen, fiberglass screen, glass bead screen, and soft screen.

[0057] In some embodiments, a projection light source is provided to the vehicle-mounted projection screen by a projection device. Exemplarily, the projection light source may be a three-color laser projection light source.

[0058] In some embodiments, when the roughness of the target anti-peeping area is greater than the wavelength of the projection light source, the incident light will be scattered in multiple directions by the surface microstructure instead of being reflected in a regular direction, that is, speckle is generated in the target anti-peeping area, thereby causing the target anti-peeping area to enter the anti-peeping mode.

[0059] Exemplarily, when the wavelength of the projection light source is 500 nm, the roughness of the target privacy protection area after the first roughening treatment is greater than 500 nm. For example, the roughness of the target privacy protection area after the first roughening treatment may be 600 to 700 nm.

[0060] More specifically, the roughness of the target privacy protection area after the first roughening treatment may be 600 nm, 650 nm or 700 nm.

[0061] By dynamically adjusting the roughness of the vehicle projection screen, the reflection and scattering behavior of light can be controlled, so that the anti-peeping mode of the target anti-peeping area on the vehicle projection screen can be turned on or off when needed, achieving more flexible application scenarios.

[0062] In some embodiments, the vehicle-mounted projection screen is pre-roughened by a second roughening treatment; the roughness of the vehicle-mounted projection screen after the second roughening treatment is smaller than the wavelength of the projection light source; wherein the second roughening treatment is different from the first roughening treatment.

[0063] Exemplarily, when the wavelength of the projection light source is 500 nm, the roughness of the vehicle-mounted projection screen after the second roughening treatment is less than 500 nm. For example, the roughness of the vehicle-mounted projection screen after the second roughening treatment may be 400 nm to 450 nm, more specifically, the roughness of the vehicle-mounted projection screen after the second roughening treatment may be 400 nm, 425 nm or 450 nm.

[0064] In some embodiments, the second roughening treatment can be understood as a preliminary roughening treatment. The second roughening treatment enables the entire vehicle-mounted projection screen to have uniform basic display characteristics, which helps to flexibly switch between different usage modes (normal mode and anti-peep mode) and reduce obvious display differences.

[0065] It is understandable that the purpose of the second roughening treatment is to increase the roughness of the vehicle projection screen to a certain extent, but it is necessary to control the roughness of the vehicle projection screen after the second roughening treatment to be smaller than the wavelength of the projection light source. In this way, the vehicle projection screen can provide clear projection content when there is no anti-peeping requirement.

[0066] In addition, the second roughening treatment provides a basis for the subsequent realization of the anti-peeping function. That is, on the basis that the vehicle-mounted projection screen has a certain roughness after the second roughening treatment, it is easier to further adjust the roughness of the target anti-peeping area to make it exceed the wavelength of the projection light source, thereby realizing the dynamic anti-peeping function. At this time, the area on the vehicle-mounted projection screen except the target anti-peeping area still maintains a clear display.

[0067] In some embodiments, the vehicle-mounted projection screen is subjected to a second roughening treatment when the vehicle-mounted projection screen leaves the factory, which means that during the manufacturing and assembly process, the surface of the vehicle-mounted projection screen has been pre-treated to meet the initial roughness requirement.

[0068] In some embodiments, performing the second roughening process includes:

[0069] A surface treatment process is performed on the vehicle-mounted projection screen to make the roughness of the vehicle-mounted projection screen smaller than the wavelength of the projection light source.

[0070] In some embodiments, the surface treatment process includes but is not limited to a chemical etching process, a dry etching process, a laser etching process, a nanoimprint lithography process, an abrasive blasting process, and the like.

[0071] In some embodiments, a vibration element is disposed on the first surface of the vehicle-mounted projection screen, and the performing a first roughening process on the target anti-peeping area includes:

[0072] A vibration element corresponding to the target privacy protection area is turned on to make the roughness of the target privacy protection area greater than the wavelength of the projection light source.

[0073] It should be noted that the vehicle-mounted projection screen includes a first surface and a second surface that are opposite to each other, wherein the first surface can be understood as the back surface of the vehicle-mounted projection screen, and the second surface can be understood as the front surface of the vehicle-mounted projection screen, ie, the projection surface.

[0074] In some embodiments, a vibration element is set on the first surface of the vehicle-mounted projection screen when the vehicle-mounted projection screen leaves the factory, which means that the vibration element is set on the first surface of the vehicle-mounted projection screen during the manufacturing and assembly process. In this way, after receiving the anti-peeping instruction, it can respond quickly and turn on the vibration element corresponding to the target anti-peeping area, so that the roughness of the target anti-peeping area is greater than the wavelength of the projection light source.

[0075] In some embodiments, by placing a vibration element on the first surface of the vehicle-mounted projection screen and turning on the vibration element after receiving an anti-peeping instruction, the roughness and optical properties of the second surface (projection surface) of the vehicle-mounted projection screen can be indirectly affected, thereby achieving imaging adjustment of the vehicle-mounted projection screen and realizing dynamic anti-peeping.

[0076] Exemplarily, when the vibration element is working, it will act on the projection surface of the vehicle-mounted projection screen through mechanical coupling, causing the surface microstructure of the projection surface of the vehicle-mounted projection screen to change, resulting in changes in the concavity or convexity of the projection surface of the vehicle-mounted projection screen or the frequency of the texture. When the amplitude of the vibration element is large, the microstructure of the projection surface of the vehicle-mounted projection screen will be more obvious, and the concavity and convexity will be more prominent, so that the projection surface of the vehicle-mounted projection screen has a greater roughness. Conversely, when the amplitude of the vibration element is small or stops vibrating, the microstructure of the projection surface of the vehicle-mounted projection screen changes less, and the roughness of the projection surface of the vehicle-mounted projection screen is relatively reduced.

[0077] In some embodiments, the vibration element includes but is not limited to a vibrator motor, a piezoelectric ceramic vibrator, a magnetically driven vibrator, and other vibration elements with an amplitude adjustment function.

[0078] Among them, the vibrator motor has the advantages of being small, light, easy to integrate, fast response, low cost and low noise. When the vibration element is a vibrator motor, it can quickly respond to adjust the roughness of the target anti-peeping area on the vehicle-mounted projection screen to achieve dynamic anti-peeping.

[0079] In some embodiments, the method further comprises:

[0080] Determining the anti-peeping level of the target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction;

[0081] According to the privacy protection level, the difference between the roughness of the target privacy protection area and the wavelength of the projection light source is adjusted so that the target privacy protection area enters a privacy protection mode corresponding to the privacy protection level.

[0082] In some embodiments, the anti-peeping instruction includes at least information about the anti-peeping level of the target anti-peeping area on the vehicle projection screen. Specifically, the anti-peeping requirements and anti-peeping levels in different scenarios may be different. The following are some examples of anti-peeping levels in different scenarios.

[0083] For example, the driver's private communication content is displayed on the in-vehicle projection screen. In order to protect the driver's privacy, the anti-peeping instruction contains information that the anti-peeping level of the target anti-peeping area (the visible area of ​​the co-pilot seat) is high-level anti-peeping.

[0084] For example, an entertainment image is displayed on the vehicle projection screen. At this time, the actual driving speed of the vehicle is greater than the preset driving speed. For driving safety, the anti-peeping instruction contains information that the anti-peeping level of the target anti-peeping area (the visible area of ​​the main driver's seat) is intermediate anti-peeping.

[0085] In some embodiments, the difference between the roughness of the target privacy protection area and the wavelength of the projection light source corresponds to the privacy protection level of the target privacy protection area. Generally, when the roughness of the target privacy protection area is greater than the wavelength of the projection light source, the greater the difference between the roughness of the target privacy protection area and the wavelength of the projection light source, the higher the privacy protection level of the target privacy protection area that can be achieved.

[0086] It should be noted that a large amount of data can be collected through a large number of experiments before the vehicle-mounted projection screen leaves the factory, and a corresponding relationship between the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source and the anti-peeping level of the target anti-peeping area can be established.

[0087] In some embodiments, after the target anti-peeping area enters the anti-peeping mode, the anti-peeping level of the target anti-peeping area may change with the change of the application scenario. The difference between the roughness of the target anti-peeping area and the wavelength of the projection light source can be adjusted in real time according to the anti-peeping level to adapt to the change of the anti-peeping level of the target anti-peeping area.

[0088] For example, in the first application scenario, sensitive information (such as the private communication content of the co-pilot passenger) is displayed on the vehicle projection screen. In order to protect the privacy of the co-pilot passenger, the anti-peeping level of the target anti-peeping area (the visible area of ​​the main driver's seat) is high-level anti-peeping. As the display of sensitive information on the vehicle projection screen ends, in the second application scenario, entertainment images are displayed on the vehicle projection screen, and the actual driving speed of the vehicle is greater than the preset driving speed. For driving safety, the anti-peeping level of the target anti-peeping area (the visible area of ​​the main driver's seat) is medium-level anti-peeping. It can be understood that when the first application scenario changes to the second application scenario, the anti-peeping level of the target anti-peeping area (the visible area of ​​the main driver's seat) is switched from high-level anti-peeping to medium-level anti-peeping. Therefore, the switching of the anti-peeping level of the target anti-peeping area can be dynamically adapted by reducing the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source.

[0089] The anti-peeping level of the target anti-peeping area on the vehicle projection screen is determined according to different application scenarios, and the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source is further adjusted in real time according to the anti-peeping level. This can achieve efficient and flexible anti-peeping functions for different scenarios, which can not only meet diverse usage needs, but also enhance the intelligence of the vehicle system and user experience.

[0090] In some embodiments, adjusting the difference between the roughness of the target privacy protection area and the wavelength of the projection light source includes:

[0091] Adjust the amplitude of the vibration element and / or the wavelength of the projection light source. In some embodiments, the amplitude of the vibration element can be increased to increase the difference between the roughness of the target privacy protection area and the wavelength of the projection light source to adapt to a higher level of privacy protection.

[0092] In some embodiments, the wavelength of the projection light source can be reduced to increase the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source to adapt to a higher level of anti-peeping level. It should be noted that the reduced wavelength of the projection light source is greater than the roughness of the area other than the target anti-peeping area on the vehicle projection screen to ensure the display effect of the area other than the target anti-peeping area on the vehicle projection screen.

[0093] In some embodiments, the difference between the roughness of the target privacy protection area and the wavelength of the projection light source can be increased by increasing the amplitude of the vibration element and reducing the wavelength of the projection light source at the same time to adapt to a higher level of privacy protection.

[0094] In some embodiments, the amplitude of the vibrating element may be reduced and / or the wavelength of the projection light source may be increased to reduce the difference between the roughness of the target privacy protection area and the wavelength of the projection light source to accommodate a lower level of privacy protection.

[0095] In other embodiments, the amplitude of the vibration element corresponding to the target anti-peeping area can be increased, and the wavelength of the projection light source can be reduced, so as to maintain the anti-peeping effect of the target anti-peeping area while improving the roughness of the area other than the target anti-peeping area on the vehicle projection screen.

[0096] In some embodiments, a projection device is installed in the vehicle equipment to provide a projection light source with adjustable wavelength. Exemplarily, the projection light source may be a three-color laser projection light source. The wavelength of the projection light source may be adjusted by adjusting the proportion of blue light in the three-color laser projection light source, for example, increasing the proportion of blue light in the three-color laser projection light source to reduce the wavelength of the projection light source, or reducing the proportion of blue light in the three-color laser projection light source to increase the wavelength of the projection light source.

[0097] In some embodiments, the vibration element includes but is not limited to a vibrator motor, a piezoelectric ceramic vibrator, a magnetically driven vibrator, and other vibration elements with an amplitude adjustment function.

[0098] It should be noted that a large amount of data can be collected through a large number of experiments before the vehicle projection screen leaves the factory, and a corresponding relationship between the amplitude of the vibration element and the roughness of the vehicle projection screen can be established. In actual use, the appropriate amplitude of the vibration element is selected according to the required roughness of the target anti-peeping area on the vehicle projection screen.

[0099] Figure 2 An optional schematic diagram of a method for preventing peeping of a vehicle-mounted projection screen provided in an embodiment of the present application is provided. Figure 3 A second optional flow chart of a method for preventing peeks of a vehicle-mounted projection screen provided in an embodiment of the present application. Figure 2 and Figure 3 Describe the process of anti-peeping of the vehicle-mounted projection screen.

[0100] In step S201, the vehicle-mounted projection screen 20 is subjected to a second roughening treatment, the purpose of which is to increase the roughness of the vehicle-mounted projection screen 20. However, the roughness of the vehicle-mounted projection screen after the second roughening treatment needs to be controlled to be smaller than the wavelength of the projection light source, so that the vehicle-mounted projection screen can provide clear projection content when there is no need for anti-peeping. In some embodiments, the second roughening treatment is performed when the vehicle-mounted projection screen leaves the factory. This means that during the manufacturing and assembly process, the surface of the vehicle-mounted projection screen has been pre-processed to meet the preliminary roughness requirements.

[0101] When the anti-peeping instruction is generated by the user autonomously or under specific triggering conditions, step S101 is executed.

[0102] In step S101, an anti-peeping instruction is received. In some embodiments, the anti-peeping instruction is triggered by the user autonomously or generated under specific triggering conditions. Next, step S102 is performed.

[0103] In step S102, the target anti-peeping area is determined, that is, based on the position information of the target anti-peeping area in the anti-peeping instruction, the specific area of ​​the target anti-peeping area on the vehicle-mounted projection screen is determined. Figure 2 As shown, the target anti-peeping area 23, i.e., the visible area of ​​the main driving seat, is determined.

[0104] In step S103 , a first roughening process is performed. Specifically, a vibration element 21 is provided on the first surface of the vehicle-mounted projection screen 20 , and the vibration element 21 corresponding to the target anti-peeping area 23 is turned on to make the roughness of the target anti-peeping area greater than the wavelength of the projection light source, thereby generating speckles 22 in the target anti-peeping area 23 .

[0105] In step S202, the anti-peeping mode is entered, that is, the display content cannot be clearly seen from the driver's line of sight, but the display content can be clearly seen from the passenger's line of sight.

[0106] In step S203, the difference between the roughness of the target privacy protection area and the wavelength of the projection light source is adjusted in real time according to the privacy protection level. In some embodiments, after the target privacy protection area enters the privacy protection mode, the privacy protection level of the target privacy protection area may change with the change of the application scenario, and the difference between the roughness of the target privacy protection area and the wavelength of the projection light source can be adjusted in real time according to the privacy protection level to adapt to the change of the privacy protection level of the target privacy protection area.

[0107] The anti-peeping level of the target anti-peeping area on the vehicle projection screen is determined according to different application scenarios, and the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source is further adjusted in real time according to the anti-peeping level. This can achieve efficient and flexible anti-peeping functions for different scenarios, which can not only meet diverse usage needs, but also enhance the intelligence of the vehicle system and user experience.

[0108] It should be noted that a large amount of data can be collected through a large number of experiments before the vehicle-mounted projection screen leaves the factory, and a corresponding relationship between the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source and the anti-peeping level of the target anti-peeping area can be established.

[0109] For example, in Figure 2 When the privacy protection level of the target privacy protection zone shown is switched from high privacy protection to medium privacy protection, the amplitude of the vibrating element can be reduced and / or the wavelength of the projection light source can be increased to reduce the difference between the roughness of the target privacy protection zone and the wavelength of the projection light source to adapt to a lower privacy protection level.

[0110] It should be noted that Figure 2 The number of vibration elements shown in the figure is only for illustration and the present application is not limited thereto.

[0111] Figure 3 For the specific implementation of the first roughening process, the second roughening process and the real-time adjustment of the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source, reference may be made to the relevant description of the aforementioned embodiment, which will not be repeated here.

[0112] The present application discloses an anti-peeping method, device, electronic device and storage medium for a vehicle-mounted projection screen, the method comprising: receiving an anti-peeping instruction; determining a target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction; performing a first roughening process on the target anti-peeping area to put the target anti-peeping area into an anti-peeping mode; the roughness of the target anti-peeping area after the first roughening process is greater than the wavelength of the projection light source.

[0113] In the solution of the present application, dynamic anti-peeping is achieved by adjusting the roughness of the target anti-peeping area of ​​the vehicle-mounted projection screen, which can not only effectively protect privacy and improve safety, but also further improve the intelligence level of the vehicle and enhance the user's driving experience, and meet diverse application needs.

[0114] In a second aspect, the present application provides an anti-peeping device for a vehicle-mounted projection screen, such as Figure 4 As shown, the anti-peeping device 40 of the vehicle-mounted projection screen includes: a receiving unit 401, a determining unit 402 and a processing unit 403; the receiving unit 401 is used to receive an anti-peeping instruction; the determining unit 402 is used to determine a target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction; the processing unit 403 is used to control the vibration element to perform a first roughening treatment on the target anti-peeping area, so that the target anti-peeping area enters an anti-peeping mode; the roughness of the target anti-peeping area after the first roughening treatment is greater than the wavelength of the projection light source.

[0115] It should be noted that the various units included in the anti-peeping device of the vehicle-mounted projection screen provided in the embodiment of the present application can be implemented by a processor in an electronic device; of course, it can also be implemented by a specific logic circuit; exemplarily, in the implementation process, the processor can be a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP) or a field-programmable gate array (FPGA), etc.

[0116] The description of the above device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the device embodiment of the present application, please refer to the description of the method embodiment of the present application for understanding.

[0117] It should be noted that in the embodiments of the present application, if the anti-peeping method of the above-mentioned vehicle-mounted projection screen is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can be essentially or partly reflected in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk. In this way, the embodiments of the present application are not limited to any specific combination of hardware and software.

[0118] In a third aspect, an embodiment of the present application further provides an electronic device, comprising: a memory and a processor; the memory stores a computer program that can be run on the processor, and when the processor executes the computer program, it implements the steps in the anti-peeping method of the vehicle-mounted projection screen provided in the above embodiment.

[0119] Combine the following Figure 5 The electronic device 50 shown is a block diagram of the electronic device.

[0120] In one example, if Figure 5 As shown, the electronic device 50 includes: a processor 51, at least one communication bus 52, at least one external communication interface 53 and a memory 54. The communication bus 52 is configured to realize the connection and communication between these components. The external communication interface 53 may include a standard wired interface and a wireless interface.

[0121] The memory 54 is configured to store instructions and applications executable by the processor 51, and can also cache data to be processed or processed by the processor 51 and various modules in the electronic device 50 (for example, image data, audio data, voice communication data, and video communication data), which can be implemented through flash memory (FLASH) or RAM.

[0122] In another example, the electronic device may be a controller. The controller is used to execute the steps in the anti-peeping method of the vehicle-mounted projection screen provided in the above embodiment.

[0123] In a fourth aspect, an embodiment of the present application further provides a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the anti-peeping method for the vehicle-mounted projection screen provided in the above embodiment are implemented.

[0124] In some specific embodiments, the storage medium can be a magnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory, a magnetic surface storage, an optical disk, or a compact disc read-only memory (CD-ROM) and other memories.

[0125] It should be noted here that the description of the above storage medium and device embodiments is similar to the description of the above method embodiments, and has similar beneficial effects as the method embodiments. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0126] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in some embodiments" appearing throughout the specification may not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The above-mentioned sequence numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0127] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0128] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0129] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0130] In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be a separate unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0131] A person skilled in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, the aforementioned program can be stored, and when the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), disks or optical disks, etc., various media that can store program codes.

[0132] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can be essentially or partly embodied in the form of a software product that contributes to the relevant technology. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0133] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A method for preventing peeping of a vehicle-mounted projection screen, characterized in that: The method comprises: Receive anti-peeping instructions; Based on the anti-peeping instruction, determining a target anti-peeping area on the vehicle-mounted projection screen; A first roughening process is performed on the target anti-peeping area to make the target anti-peeping area enter an anti-peeping mode; the roughness of the target anti-peeping area after the first roughening process is greater than the wavelength of the projection light source.

2. The method according to claim 1, characterized in that The first surface of the vehicle-mounted projection screen is provided with a vibration element, and the first roughening process is performed on the target anti-peeping area, comprising: A vibration element corresponding to the target privacy protection area is turned on to make the roughness of the target privacy protection area greater than the wavelength of the projection light source.

3. The method according to claim 1, characterized in that: The vehicle-mounted projection screen is pre-roughened by a second roughening treatment; the roughness of the vehicle-mounted projection screen after the second roughening treatment is smaller than the wavelength of the projection light source; wherein the second roughening treatment is different from the first roughening treatment.

4. The method according to claim 3, characterized in that Performing the second roughening process includes: A surface treatment process is performed on the vehicle-mounted projection screen to make the roughness of the vehicle-mounted projection screen smaller than the wavelength of the projection light source.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: Determining the anti-peeping level of the target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction; According to the privacy protection level, the difference between the roughness of the target privacy protection area and the wavelength of the projection light source is adjusted so that the target privacy protection area enters a privacy protection mode corresponding to the privacy protection level.

6. The method according to claim 5, characterized in that The adjusting the difference between the roughness of the target anti-peeping area and the wavelength of the projection light source includes: The amplitude of the vibration element and / or the wavelength of the projection light source are adjusted.

7. The method according to claim 2, characterized in that The vibration element is a vibrator motor.

8. An anti-peeping device for a vehicle-mounted projection screen, characterized in that: include: A receiving unit, used for receiving an anti-peeping instruction; A determination unit, configured to determine a target anti-peeping area on the vehicle-mounted projection screen based on the anti-peeping instruction; The processing unit is used to control the vibration element to perform a first roughening process on the target anti-peeping area, so that the target anti-peeping area enters an anti-peeping mode; the roughness of the target anti-peeping area after the first roughening process is greater than the wavelength of the projection light source.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the computer program, the method according to any one of claims 1 to 7 is implemented.

10. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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