Projection system, method and device for controlling projection system, and vehicle

Abstract

The invention provides a projection system, a method and device for controlling the projection system and a vehicle. The projection system disclosed by the invention comprises projection equipment and a projection lens module. Wherein the projection equipment is used for emitting first image light carrying image information, and the projection lens module is used for receiving the first image light and changing the transmission direction of the first image light, so that the image light emitted by the projection equipment is transmitted to the tail direction or the side window direction of the vehicle. According to the invention, the projection lens module is arranged at the specific position of the vehicle, so that a user can quickly deploy an outdoor projection scene, and the requirements of more projection scenes are met. Moreover, the technical scheme disclosed by the invention has good environmental adaptability, further improves the stability of the operation of the whole projection system and the stability of the projection effect, and improves the user experience.

Description

Technical Field

[0001] The present application relates to the field of intelligent vehicle driving, and in particular to a projection system, a method and device for controlling the projection system, and a vehicle. Background Art

[0002] With the intelligent development of automobiles and other means of transportation, users' demand for vehicle functions has gradually extended from a single means of travel to a multi-scene living space, and more demands have gradually emerged for multi-scene projection in vehicles, especially in scenes such as outdoor camping, using vehicles to achieve projection entertainment.

[0003] Therefore, how to make the vehicle's projection system meet the user's outdoor projection needs while further simplifying the deployment complexity in complex scenes such as outdoor and improving the stability of the projection effect is a technical problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0004] This application provides a projection system, a method for controlling a projection system, an apparatus, and a vehicle. By installing a specific projection lens module on an existing projection device in a vehicle, the projection direction of the original projection device is changed, thereby expanding the projection scene to different projection directions. This allows users to quickly deploy outdoor projection scenes, meeting the needs of more projection scenarios, reducing the complexity of overall projection system deployment, and reducing the time required for manual deployment and debugging. Furthermore, the technical solution disclosed in this application has good environmental adaptability, further improving the stability of the overall projection system's operation and the stability of the projection effect, and enhancing the user experience.

[0005] In a first aspect, a projection system is provided for use in a vehicle. The projection system includes a projection device and a projection lens module. The projection device is disposed within the vehicle body and is configured to emit a first image light beam. The first image light beam is a beam of light carrying image information. The projection lens module is disposed on the light-emitting side of the projection device and is configured to redirect the first image light beam to form a second image light beam. The projection lens module is further configured to transmit the second image light beam toward the rear of the vehicle or toward a side window of the vehicle.

[0006] Based on the above solution, by placing a projection lens module on the side of the projection device that emits light, the transmission direction of the image light emitted by the projection device is changed. Utilizing rear projection technology, the projection scene can be expanded toward the rear of the vehicle or the side windows. This application expands the application of vehicle projection scenes by placing projection lens modules in specific locations. Furthermore, users can quickly deploy and set up the expanded projection scene without having to calibrate the projection light path.

[0007] It should be noted that the first image light emitted by the projection device is transmitted toward the front windshield of the vehicle.

[0008] It should be noted that the image information carried by the first image light includes but is not limited to text information, image information, video information, etc. that need to be displayed on the projection screen.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the projection lens module is further used to change the projection ratio of the projection device.

[0010] Based on the above solution, in the projection scene of the vehicle expansion, the distance between the projection screen and the projection device is not necessarily the same. Furthermore, in different scenarios, the size of the projection screen that can be set and the size of the projection picture required by the user are not necessarily the same. Therefore, the present application changes the projection ratio of the projection device through the projection lens module to meet the image clarity requirements in projection scenes with different projection ratio requirements. The technical solution disclosed in this application has good environmental adaptability, further improves the stability of the overall projection system operation and the stability of the projection effect, and enhances the user experience.

[0011] It should be noted that the projection lens is used to change the projection ratio of the projection device, including increasing the projection ratio of the projection device or decreasing the projection ratio of the projection device.

[0012] It should be noted that the projection ratio of the projection device includes the ratio of the projection distance to the width of the projection screen.

[0013] In conjunction with the first aspect, in certain implementations of the first aspect, the projection lens module includes a first lens module and a second lens module. The first lens module is disposed between the projection device and the second lens module and is configured to modulate the diffusion angle of the first image light. The second lens module is configured to receive the modulated first image light and reflect it to form the second image light.

[0014] Based on the above solution, the projection lens module includes a lens module for modulating the diffusion angle of the image light, and a lens module for changing the transmission direction of the image light. The image light emitted by the projection device first passes through the first lens module to increase or decrease the diffusion angle of the image light. The image light with the changed diffusion angle then passes through the second lens module and is transmitted to the rear of the vehicle or the side window. The present application changes the projection ratio of the projection device through the first lens module, so that the projection device can achieve different extended projection scenes, ensuring the clarity of the projection picture and the projection

[0015] It should be noted that the first lens module is used to modulate the diffusion angle of the light beam emitted by the projection device, which can also be understood as the first lens module being used to modulate the field of view (FOV) of the projection device.

[0016] It should be noted that the spread angle of the light beam is also called the divergence angle of the light beam, FOV, etc.

[0017] In conjunction with the first aspect, in certain implementations of the first aspect, the second lens module includes a first reflector. The first reflector is configured to receive the modulated first image light and reflect it to form the second image light. A first angle is formed between the first reflector and the vertical plane, and the first angle is less than or equal to 20 degrees.

[0018] Based on the above solution, the second lens module includes a reflector, which changes the transmission direction of the image light through the reflector. There is a first angle between the reflector and the plumb plane. By adjusting the size of the first angle, the angle between the image light imaging and the plumb plane can be adjusted. It can also be understood that by adjusting the size of the first angle, the trapezoidal distortion of the image light imaging can be adjusted. The present application can adjust the distortion of the imaging picture by adjusting the angle between the reflector and the plumb plane to ensure that the image light beam is emitted without obstruction. It further improves the quality of the imaging picture of the projection system, further improves the stability of the operation of the overall projection system and the stability of the projection effect, and enhances the user experience.

[0019] It should be noted that the first angle includes an angle in a clockwise direction based on the vertical plane.

[0020] In conjunction with the first aspect, in certain implementations of the first aspect, the second lens module includes a first reflector and a second reflector. The first reflector is configured to receive the modulated first image light and reflect it to form a third image light. The second reflector is configured to receive the third image light and reflect it to form a second image light. A second angle is formed between the first reflector and the second reflector, and the second angle is greater than or equal to 90 degrees.

[0021] Based on the above solution, the second lens module includes two reflectors, which change the transmission direction of the image light through a periscope structure. The lower second reflector has an angle with the plumb plane. By adjusting the relative position and relative angle of the second reflector and the first reflector, the angle between the image light imaging and the plumb plane can be adjusted. Compared with a structure where the second reflector includes only one reflector, two reflectors provide more flexible adjustment of the image light transmission direction. While ensuring that the image light is emitted unobstructed, the distortion of the image image can be further reduced. This further improves the quality of the projected image and enhances the user experience.

[0022] It should be noted that the second angle includes the angle formed between the first reflector and the second reflector, or the second angle includes the angle between the extended plane where the first reflector is located and the extended plane where the second reflector is located.

[0023] It should be noted that the size of the second angle can be adjusted by adjusting the angle between the second reflector and the vertical plane. The second angle is less than or equal to 130 degrees, so that the image light can be emitted without obstruction.

[0024] In conjunction with the first aspect, in certain implementations of the first aspect, a trunk opening is provided at the rear of the vehicle, and the projection lens module is configured to cause the second image light to be emitted from the trunk opening.

[0025] Based on the above solution, when the vehicle's trunk is open, the projection lens module changes the diffusion angle and transmission direction of the image light so that the image light can be emitted unobstructed from the trunk opening at the rear of the vehicle. By setting a projection screen at the trunk opening of the vehicle, the projection system can be set up. This application allows users to quickly deploy outdoor projection scenes, meet the needs of more projection scenes, reduce the complexity of the overall projection system deployment, and reduce the time required for manual deployment and debugging. In addition, since the technical solution disclosed in this application is that the projection equipment and the projection screen are both set on the vehicle body, the overall projection system has good environmental adaptability, further improving the stability of the overall projection system's operation and the stability of the projection effect.

[0026] It should be noted that, when the projection lens module is configured to transmit the second image light toward the side window, the projection lens module is configured to emit the second image light from the side window opening. Alternatively, the projection lens module is configured to emit the second image light from the side door opening formed when the side door of the vehicle is opened.

[0027] In conjunction with the first aspect, in certain implementations of the first aspect, along the direction of gravity, an upper edge of the second image light is lower than a lower edge of the projection device and / or the first lens module. The lower edge of the second image light is higher than an upper edge of a lower edge of a trunk opening of the vehicle.

[0028] Based on the above solution, in the direction of transmission of the second image light, the upper edge of the second image light may be blocked by the projection device or the first lens module, and the lower edge of the second image light may be blocked by the vehicle body. The projection lens module adjusts the transmission direction of the second image light so that the second image light is emitted unobstructed, thereby ensuring a complete image. The technical solution disclosed in this application further ensures the quality and integrity of the projected image in the projection scene, further improving user satisfaction and user experience.

[0029] In combination with the first aspect, in certain implementations of the first aspect, the first projection screen is disposed in the rear space of the vehicle, and is configured to receive the second image light and transmit it to form the first image.

[0030] Based on the above solution, the first projection screen uses transmissive imaging to allow users to view projections in outdoor scenes in their vehicles, further meeting users' multi-scene needs and improving user satisfaction.

[0031] It should be noted that the first projection screen can also be used to reflect the second image light to form the first image. This can meet the user's need to view a larger projection screen in the car with the rear seats folded down in scenes such as camping and outdoor activities.

[0032] In conjunction with the first aspect, in certain implementations of the first aspect, the projection system further includes a first control module. The first control module is configured to control the size of the first angle.

[0033] Based on the above solution, when the projection lens module includes a reflector, the projection system can also adjust the distortion of the image by adjusting the size of the first angle, and adjust the imaging effect of the image according to the position of the projection screen. This further enhances the flexibility of the application scenarios of the projection system disclosed in this application, allowing users to adjust it according to practical needs and ensuring a good user experience.

[0034] In conjunction with the first aspect, in certain implementations of the first aspect, the projection system further includes a second control module. The second control module is configured to control a third angle. The third angle includes an angle formed between the second reflector and the vertical plane.

[0035] Based on the above solution, when the projection lens module includes two reflectors, the projection system can also adjust the distortion of the imaging picture by adjusting the size of the third angle, and adjust the imaging effect of the picture according to the position of the projection screen.

[0036] It should be noted that the first reflector and the second reflector include two independent reflectors, and the size of the third angle is adjusted by controlling the position of the second reflector.

[0037] It should be noted that the first reflector and the second reflector include an integrated “L”-shaped reflector, and the size of the third angle can be adjusted by controlling the position of the entire reflector.

[0038] In conjunction with the first aspect, in certain implementations of the first aspect, the projection system further includes a first drive module. The first drive module is configured to drive the projection lens module to move along a first slide rail to a first position so that the projection lens module receives the first image light. The first slide rail is disposed on a roof of the vehicle.

[0039] Based on the above solution, a first slide rail is provided on the roof of the vehicle, and a first drive module drives the projection lens module to move along the first slide rail. When the vehicle needs to implement a rear projection scenario, the projection lens module is controlled to move to a first position to receive image light. When the vehicle's projection scenario does not require the projection lens module to change the transmission direction of the image light, the projection lens module is moved to one side along the first slide rail. The technical solution disclosed in this application further simplifies the user's workload for projection scene deployment, reduces the time required for outdoor projection scene deployment, and improves the user experience.

[0040] In conjunction with the first aspect, in certain implementations of the first aspect, the projection system further includes a second drive module. The second drive module is configured to drive the first projection screen to rotate in a first direction. The first projection screen is disposed on the inside of a vehicle trunk lid or on a roof of the vehicle trunk.

[0041] Based on the above solution, the vehicle is integrated with a projection screen, and the folding and unfolding of the projection screen can be controlled. The technical solution disclosed in this application, by integrating the projection screen, further simplifies the workload for deploying the projection scene, reduces the time required for outdoor projection scene deployment, and improves the user experience.

[0042] It should be noted that the first direction includes a clockwise direction or a counterclockwise direction.

[0043] In conjunction with the first aspect, in certain implementations of the first aspect, a first fixing point and a second fixing point are provided on an edge of the trunk opening for securing the bottom edge of the first projection screen. The first fixing point and the second fixing point are configured to form a fourth angle between the first projection screen and a vertical plane when the first projection screen is deployed. The fourth angle is greater than or equal to 0 degrees.

[0044] Based on the above solution, by setting fixed points on the edge of the vehicle trunk opening, the projection screen remains flat when unfolded, further improving the projection system's wind resistance and stability. Furthermore, by setting fixed points, the projection screen is angled with the vertical plane to reduce image distortion, further enhancing the imaging quality and user experience.

[0045] In conjunction with the first aspect, in certain implementations of the first aspect, the projection system further includes a second projection screen. The second projection screen is disposed on a side of the projection device where light is emitted. When the second projection screen receives the first image light, a second image is formed. The second image is mirror-symmetrical or centrally symmetrical with the first image.

[0046] Based on the above solution, a second projection screen is provided on the side of the projection device that directly receives the first image light emitted by the projection device. The image formed by the first image light on the second projection screen is mirror-symmetrical or centrally symmetrical to the image formed on the first projection screen.

[0047] It should be noted that, when the projection lens module includes a reflector, the image formed on the second projection screen is mirror-symmetrical to the image formed on the first projection screen.

[0048] It should be noted that, when the projection lens module includes two reflective mirrors to form a periscope structure, the image formed on the second projection screen is centrally symmetrical to the image formed on the first projection screen.

[0049] It should be noted that the first image and the second image carry the same image information, and the size of the first image and the size of the second image are proportional.

[0050] In a second aspect, a method for controlling a projection system is provided, applicable to a vehicle projection system. The projection system includes a projection device and a projection lens module. The method includes: in response to a first application scenario of the projection system, causing the projection device to emit a first image light; and in response to a second application scenario of the projection system, causing the projection device to emit a fourth image light. The projection lens module is disposed on a light-emitting side of the projection device and is configured to change the transmission direction of the first image light to form a second image light, which is then transmitted toward the rear of the vehicle or toward a side window of the vehicle.

[0051] Based on the above solution, the vehicle projection system includes two application scenarios. When the projection system is in different application scenarios, the projection device emits different image light. In the solution disclosed in this application, the vehicle projection system can meet both front and rear projection scenarios, meeting the user's projection needs in different scenarios and improving the user experience.

[0052] In conjunction with the second aspect, in certain implementations of the second aspect, the fourth image light and the second image light have different transmission directions. When the fourth image light and the second image light are incident on the same projection plane, the projected image formed by the fourth image light and the projected image formed by the second image light are mirror-symmetrical or centrally symmetrical.

[0053] It should be noted that the fourth image light and the second image light carry the same image information to be projected, and the size of the projected image formed by the fourth image light is proportional to the size of the projected image formed by the second image light.

[0054] In conjunction with the second aspect, in certain implementations of the second aspect, in response to the projection system switching to the first application scenario, the method further includes acquiring first image light. The first image light includes image light that is horizontally flipped and / or vertically flipped on image light currently emitted by the projection device.

[0055] Based on this solution, users can switch projection scenes when viewing images or videos in their vehicles without having to switch the projection signal source. In response to switching to the first application scenario, the projection system horizontally and / or vertically flips the image light emitted by the current projection device based on the structure of the projection lens module. The light is then transmitted to the screen in the first application scenario and imaged. This further enhances the user experience when switching between projection scenarios.

[0056] In conjunction with the second aspect, in certain implementations of the second aspect, the method further includes activating or switching the projection system to a first application scenario in response to the projection lens module being located in a first position, wherein the first position is located on a roof of the vehicle, configured to enable the projection lens module to receive the first image light.

[0057] Based on the above solution, the vehicle may further include a sensor or detector that, upon detecting that the projection lens module is in the first position, instructs the vehicle's projection system to switch to the first application scenario. The technical solution disclosed in this application includes triggering instructions for multiple scene switching, providing users with more interactive options and further enhancing the user experience.

[0058] It should be noted that the projection lens module can be fixed to and removed from the first position of the vehicle by means of magnetism, threaded openings, snap fasteners, etc.

[0059] In conjunction with the second aspect, in certain implementations of the second aspect, in response to a first application scenario of the projection system, the method further includes controlling the projection lens module to move to a first position along a first slide rail disposed on a roof of the vehicle.

[0060] In conjunction with the second aspect, in certain implementations of the second aspect, in response to the first application scenario of the projection system, the method further includes controlling a first angle so that the second image light is emitted from a trunk opening of the vehicle. The first angle comprises the angle formed between a first reflector in the projection lens module and a vertical plane. The first reflector is configured to receive and reflect the first image light to form the second image light. The first angle is less than or equal to 20 degrees.

[0061] In conjunction with the second aspect, in certain implementations of the second aspect, in response to the first application scenario of the projection system, the method further includes controlling a third angle so that the second image light is emitted from the vehicle's trunk opening. The third angle comprises the angle formed between a second reflector in the projection lens module and a vertical plane. The first reflector in the projection lens module is configured to receive the first image light and reflect it to form the third image light. The second reflector is configured to receive the third image light and reflect it to form the second image light.

[0062] In combination with the second aspect, in certain implementations of the second aspect, in response to the first application scenario of the projection system, the method further includes driving the first projection screen to unfold, so that the first projection screen receives the second image light and transmits it to form the first image.

[0063] In combination with the second aspect, in certain implementations of the second aspect, the projection lens module is further used to change the projection ratio of the projection device.

[0064] In conjunction with the second aspect, in certain implementations of the second aspect, the projection lens module includes a first lens module and a second lens module. The first lens module is disposed between the projection device and the second lens module and is configured to modulate the diffusion angle of the first image light. The second lens module is configured to receive the modulated first image light and reflect it to form the second image light.

[0065] In conjunction with the second aspect, in certain implementations of the second aspect, the second lens module includes a first reflector and a second reflector. The first reflector is configured to receive the modulated first image light and reflect it to form a third image light. The second reflector is configured to receive the third image light and reflect it to form a second image light. A second angle is formed between the first reflector and the second reflector. The second angle is greater than or equal to 90 degrees.

[0066] In conjunction with the second aspect, in certain implementations of the second aspect, a trunk opening is provided at the rear of the vehicle, and the projection lens module is configured to cause the second image light to be emitted from the trunk opening.

[0067] In conjunction with the second aspect, in certain implementations of the second aspect, along the direction of gravity, an upper edge of the second image light is lower than a lower edge of the projection device and / or the first lens module. The lower edge of the second image light is higher than an upper edge of a lower edge of a trunk opening of the vehicle.

[0068] In combination with the second aspect, in certain implementations of the second aspect, the first projection screen is disposed in the rear space of the vehicle, for receiving the second image light and transmitting it to form the first image.

[0069] In conjunction with the second aspect, in certain implementations of the second aspect, a first fixing point and a second fixing point are provided at an edge of the trunk opening for securing the bottom edge of the first projection screen. The first fixing point and the second fixing point form a fourth angle with the vertical plane when the first projection screen is deployed. The fourth angle is greater than or equal to 0 degrees.

[0070] In conjunction with the second aspect, in certain implementations of the second aspect, the projection system further includes a second projection screen. The second projection screen is disposed on a side of the projection device where light is emitted. When the second projection screen receives the first image light, a second image is formed. The second image is mirror-symmetrical or centrally symmetrical with the first image.

[0071] In a third aspect, an embodiment of the present application provides a cockpit system. The cockpit system includes the projection system and a seat provided in the first aspect and any one of the implementations of the first aspect. The seat is configured to allow a user to sit on the seat.

[0072] In conjunction with the third aspect, in certain implementations of the third aspect, the cockpit system further includes a control system configured to obtain an application scenario of the vehicle's projection system and control the projection device to emit the first image light or the fourth image light according to the application scenario.

[0073] It is understood that the application scenarios of the projection system include the first and second application scenarios described above. The control system may be a control device, a controller, a control module, a control apparatus, etc. In some implementations, the control system may be a central control system that also has other control functions, including but not limited to obtaining the application scenario of the projection system and controlling the projection device to emit corresponding image light based on the application scenario.

[0074] In a fourth aspect, an embodiment of the present application provides a vehicle, comprising a projection system as provided in the first aspect and any one of the implementations of the first aspect, or a cockpit system as provided in the third aspect and any one of the implementations of the third aspect.

[0075] In a fifth aspect, a control device is provided, comprising: at least one processor configured to execute a computer program or instructions to perform the method of the second aspect and any possible implementation of the second aspect. Optionally, the device further comprises a memory configured to store the computer program or instructions. Optionally, the device further comprises a communication interface, through which the processor reads the computer program or instructions.

[0076] In one implementation, the apparatus is a control device.

[0077] In another implementation, the apparatus is a chip, a chip system, or a circuit for controlling a device.

[0078] In a sixth aspect, a processor is provided for executing the above-mentioned second aspect and any possible implementation method of the second aspect.

[0079] For operations such as sending and obtaining / receiving involved in the processor, unless otherwise specified, or if they do not conflict with their actual functions or internal logic in the relevant descriptions, they can be understood as processor output, reception, input, and other operations, and this application does not limit this.

[0080] Optionally, the device further includes: a memory for storing programs; accordingly, at least one processor is used to execute computer programs or instructions in the memory.

[0081] Optionally, the device further includes a communication interface, which is coupled to the processor and can be used to input information to the processor or output information from the processor.

[0082] In a seventh aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, wherein the program code includes a method for executing the above-mentioned second aspect and any possible implementation of the second aspect.

[0083] In an eighth aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the method in the above-mentioned second aspect and any possible implementation of the second aspect.

[0084] In the ninth aspect, a chip is provided, which includes a processor and a communication interface. The processor reads instructions on the memory through the communication interface and executes the method in the above-mentioned second aspect and any possible implementation of the second aspect.

[0085] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instructions are stored, and the processor is used to execute the computer program or instructions on the memory. When the computer program or instructions are executed, the processor is used to execute the method in the above-mentioned second aspect and any possible implementation method of the second aspect.

[0086] The beneficial effects brought about by the second to ninth aspects mentioned above can be specifically referred to the description of the beneficial effects in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] Figure 1 It is a functional block diagram of the vehicle 100 provided in an embodiment of the present application.

[0088] Figure 2 2 is a schematic structural diagram of a projection system 200 provided in an embodiment of the present application.

[0089] Figure 3 2 is a schematic structural diagram of another projection system 200 provided in an embodiment of the present application.

[0090] Figure 4 2 is a schematic structural diagram of a projection system 200 provided in an embodiment of the present application and mounted on a vehicle.

[0091] Figure 5 2 is a schematic structural diagram of another projection system 200 provided in an embodiment of the present application.

[0092] Figure 6 2 is a schematic structural diagram of another projection system 200 provided in an embodiment of the present application.

[0093] Figure 7 2 is a schematic structural diagram of an angle expansion lens assembly 221 provided in an embodiment of the present application.

[0094] Figure 8A schematic flowchart of a method 800 of a projection system provided in an embodiment of the present application is provided.

[0095] Figure 9 A schematic structural diagram of a control device provided in an embodiment of the present application is shown.

[0096] Figure 10 A structural schematic diagram of another control device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0097] The technical solution in this application will be described below with reference to the accompanying drawings.

[0098] First, the terms "first," "second," and various numbers used in the following descriptions or drawings of the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application. For example, the first image light and the second image light may be different beams.

[0099] Second, the term "comprising" and any variations in the embodiments of the present application shown below are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include other units that are not explicitly listed or are inherent to these products or devices.

[0100] Third, in the embodiments of this application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. An embodiment or design described as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. The use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete manner to facilitate understanding.

[0101] Fourth, in the embodiments of the present application, image light refers to light carrying an image (or image information) and is used to generate an image, and may also be referred to as imaging light, etc.

[0102] Fifth, in the drawings of this application, the thickness, size, and shape of various component structures have been slightly exaggerated for ease of illustration. Specifically, the shapes of the components shown in the drawings are shown by way of example, and the drawings are only examples and are not drawn strictly to scale.

[0103] Sixth, unless otherwise defined, all terms (including technical and scientific terms) used in this application have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs.

[0104] With the further development of smart cars, users' demand for vehicle functions has gradually extended from a single means of transportation to a multi-scene living space. Among them, camping projection has attracted much attention as the core experience of immersive outdoor entertainment. In some solutions, users use the vehicle's own power supply to connect an external portable projection device, and set up a temporary projection system by setting up an independent bracket and screen. This solution requires users to build the entire projection system by themselves, and there are certain requirements for the debugging of the optical path between the projection beam and the projection screen, the flatness of the screen, and the flatness of the construction site. The overall projection system is more complex to build and takes a long time to build. In addition, the image quality and projection distance of the portable projection equipment have further limitations on the construction site, and the adaptability to the construction environment and vehicles is low.

[0105] Other solutions include headlights with projection capabilities. While this simplifies the deployment of projection light sources, users still need to build a projection screen and adjust the distance and relative position between the screen and the projection light source. Alternatively, users may need to find a suitable wall surface to serve as the projection screen and receive the projection beam. These headlight projection technologies still lack adaptive image adjustment, and due to the functional limitations of the headlights, the brightness and resolution of the projected image cannot meet the requirements of higher-definition audio and video.

[0106] Based on this, the technical solution disclosed in this application sets specific positions for fixing the projection lens module and projection screen. The projection lens module changes the transmission direction of the light beam emitted by the projection device, so that the image light is transmitted to the position set on the projection screen, thereby realizing the projection display of images and videos. The technical solution disclosed in this application adopts a modular design of the projection lens module and projection screen, and sets specific positions on the vehicle for fixing or installing the projection lens module or projection screen. This application simplifies the complexity of setting up the entire projection system, allowing users to complete the construction and deployment of the projection scene in a short time. Furthermore, the technical solution disclosed in this application can also be integrated into the vehicle at the factory, and the projection mode can be switched through electronic control. The technical solution disclosed in this application simplifies the complexity of debugging the optical path between the output light beam of the projection device and the projection screen, eliminating the time cost of manual construction and optical path debugging. Furthermore, the technical solution disclosed in this application further improves the stability of the entire projection system by setting specific positions to fix the projection lens module or projection screen, and enhances the environmental adaptability of the entire projection system. In addition, the projection system disclosed in this application can also take into account the efficient use of the space inside the vehicle and meet automotive-grade safety standards.

[0107] The following first describes the vehicles to which the projection system provided in this application can be applied.

[0108] Figure 1 It is a functional block diagram of the vehicle 100 provided in an embodiment of the present application.

[0109] Vehicle 100 may include a perception system 120 and a computing platform 150. Perception system 120 may include one or more sensors for sensing information about the environment surrounding vehicle 100. For example, perception system 120 may include a positioning system, which may be a global positioning system (GPS), a BeiDou system, or other positioning systems. Perception system 120 may also include one or more of an inertial measurement unit (IMU), a laser radar, a millimeter-wave radar, an ultrasonic radar, and a camera.

[0110] Some or all functions of vehicle 100 may be controlled by computing platform 150. Computing platform 150 may include one or more processors, such as processors 151 to 15n (n is a positive integer). A processor is a circuit capable of processing signals. In one implementation, the processor may be a circuit capable of reading and executing instructions, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor may implement certain functions through the logical relationships of hardware circuits. The logical relationships of the hardware circuits may be fixed or reconfigurable. For example, the processor may be a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as a field programmable gate array (FPGA). In a reconfigurable hardware circuit, the process of the processor loading a configuration file to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc. In addition, the computing platform 150 can also include a memory for storing instructions, and some or all of the processors 151 to 15n can call the instructions in the memory to implement the corresponding functions. For example, the computing platform 150 (or one or more of the processors 151 to 15n) can control the expansion and contraction of the screen; it can control the adjustment of the projection lens module.

[0111] Figure 2 2 is a schematic structural diagram of a projection system 200 provided in an embodiment of the present application.

[0112] As an example and not a limitation, the figure shows a schematic diagram of the structure of a projection system 200. In the technical solution disclosed in this application, projection system 200 can not only meet the needs of exterior vehicle projection scenarios (Scenario 1), but also interior vehicle projection scenarios (Scenario 2). The following first describes the structure of projection system 200 and the exterior vehicle projection scenario (Scenario 1).

[0113] The projection system 200 includes a projection device 210 and a projection lens module 220. The projection device 210 is used to emit image light 1, which is a beam of light carrying image information, and is transmitted toward the front windshield.

[0114] It should be understood that the image light 1 emitted by the projection device 210 can carry an image stream signal or a video stream signal, and the present application does not specifically limit the information content and type of information carried by the image light 1.

[0115] It should be understood that image light 1 is a specific implementation of the first image light in the implementation of the present application, and does not constitute any limitation on the protection scope of the present application.

[0116] The projection lens module 220 is disposed on the light-emitting side of the projection device 210 and is used to receive the image light 1 and change the transmission direction of the image light 1 to form the image light 2. The image light 2 is transmitted toward the rear of the vehicle or toward the side window of the vehicle.

[0117] It should be understood that image light 2 is a specific implementation of the second image light in the implementation of the present application, and does not constitute any limitation on the protection scope of the present application.

[0118] The projection system 200 further includes a rear projection screen 230 , which is used to receive the image light 2 . The screen 230 transmits the image light 2 and forms an image.

[0119] In one specific implementation, the projection device 210 emits image light 1, the projection lens module 220 receives image light 1 and reflects it to generate image light 2. Image light 2 is incident on one side of the rear projection screen 230 and is transmitted through it, forming image 1 on the other side of the rear projection screen 230. A user views image 1 on the other side of the rear projection screen 230, that is, the user views image 1 on the other side of the projection device 210 relative to the rear projection screen 230.

[0120] In another specific implementation, projection device 210 emits image light 1, and projection screen 1 is positioned directly on the side of projection device 210 where the light is emitted. Projection screen 1 receives image light 1 and reflects it to form image 2. A user views image 2 on the side of projection device 210 opposite projection screen 1. Image 2 and image 1 are mirror-symmetrical or centrally symmetrical.

[0121] It should be understood that since the projection screen 1 and the rear projection screen 230 have different projection distances from the projection device 210, the sizes of image 1 and image 2 may be different. This application does not specifically limit the size relationship between image 1 and image 2.

[0122] It should be understood that the rear projection screen 230 is a specific implementation of the first projection screen in the implementation of this application and does not constitute any limitation on the scope of protection of this application.

[0123] It should be understood that the projection screen 1 is a specific implementation of the second projection screen in the implementation of the present application and does not constitute any limitation on the scope of protection of the present application.

[0124] It should be understood that Image 1 is a specific implementation of the first image in the implementation of this application and does not constitute any limitation on the scope of protection of this application.

[0125] It should be understood that Image 2 is a specific implementation of the second image in the implementation of this application and does not constitute any limitation on the scope of protection of this application.

[0126] It should be noted that when the image light 2 is transmitted toward the rear of the vehicle, the rear projection screen 230 is positioned toward the rear of the vehicle. For example, the rear projection screen 230 is positioned within the open space formed by the vehicle's trunk, configured to receive the image light 2 and transmit the image light 2 to form an image. For another example, when the vehicle's trunk is open, an external tent or canopy accessory may be attached to the rear of the vehicle. The rear projection screen 230 is positioned on the external tent or canopy accessory, configured to receive the image light 2 and transmit the image light 2 to form an image. This application does not specifically limit the specific location of the rear projection screen 230.

[0127] It should be noted that when the image light 2 is transmitted to the side window direction of the vehicle, the rear projection screen 230 is set in the direction of the side window of the vehicle. For example, the rear projection screen 230 is set on the outside of the roof of the vehicle, and covers the outside of the vehicle window in the unfolded state. The rear projection screen 230 is used to receive the image light 2 and transmit the image light 2 to form an image. For another example, the rear projection screen 230 is set on the upper side of the vehicle side window, and covers the vehicle side window in the unfolded state. The rear projection screen 230 is used to receive the image light 2 and transmit the image light 2 to form an image. Furthermore, the rear projection screen 230 can also be set on the structure around the window frame of the vehicle side window, or integrated into the side window glass of the vehicle. This application does not specifically limit the specific location of the rear projection screen 230.

[0128] The projection system 200 can also meet the in-vehicle projection scenario (Scenario 2), which is described below. When the projection system 200 performs in-vehicle projection, the projection system 200 also includes a front projection screen 240. The projection device 210 is used to emit image light 4. The front projection screen 240 is arranged on the side of the projection device 210 where the light is emitted. The image light 4 is directly transmitted to the front projection screen 240, which reflects the image light 4 and forms an image. The image light 4 is transmitted in the direction of the vehicle's front windshield. The transmission direction of the image light 4 and the image light 2 are different.

[0129] It should be noted that when the image information carried by image light 4 and image light 1 is the same, and image light 4 and image light 2 are incident on the same projection plane, the projection image formed by image light 4 and the projection image formed by image light 2 are mirror-symmetrical or center-symmetrical.

[0130] It should be understood that since the beam diffusion angles of image light 4 and image light 2 may be different, and the distances between the emitted light sources and the projection plane may be different, the sizes of the images formed by image light 4 and the images formed by image light 2 may be different. This application does not impose any special restrictions on the size of the imaging.

[0131] It should be understood that the front projection screen 240 is a specific implementation of the second projection screen in the implementation of this application and does not constitute any limitation on the scope of protection of this application.

[0132] It should be understood that image light 4 is a specific implementation of the fourth image light in the implementation of the present application, and does not constitute any limitation on the protection scope of the present application.

[0133] In a specific implementation, in an in-vehicle projection scenario, the front projection screen 240 is disposed between the cockpit and the second row of passenger seats, and the projection device 210 is disposed on the roof of the vehicle, behind the second row of passenger seats.

[0134] It should be noted that the front projection screen 240 and the projection device 210 can be folded, unfolded, and moved through a mechanical structure, and this application does not specifically limit the specific mechanical structure.

[0135] In a specific implementation, in an out-of-vehicle projection scene, the rear projection screen 230 is disposed in an open space formed when the trunk of the vehicle is open, and shares a projection device 210 with the in-vehicle projection scene.

[0136] It should be noted that in order to distinguish the screens used in the in-car projection scene and the out-of-car projection scene, the screen used in the in-car projection scene is called the front projection screen, and the screen used in the out-of-car projection scene is called the rear projection screen. This does not impose any restrictions on the material of the projection screen or the projection light path.

[0137] It should be noted that the off-vehicle projection scenarios disclosed in this application include scenarios in which a user views a projected image outside a vehicle. The projection screen for this off-vehicle projection scenario, when deployed, can be placed within the open space created by the vehicle's trunk being opened. It can also be placed within a screen hanging area within an external vehicle tent when the trunk is open. In some specific implementations, the off-vehicle projection scenario is also referred to as scene 1, projection scene 1, application scene 1, first application scene, camping scene, outdoor projection scene, etc., and this application does not specifically limit this.

[0138] It should be noted that the in-vehicle projection scenario disclosed in this application includes scenarios in which a user views projected images while riding in a vehicle. The projection screen for this in-vehicle projection scenario, whether unfolded or folded, is located within the vehicle's interior. In some specific implementations, the in-vehicle projection scenario is also referred to as scene 2, projection scene 2, application scene 2, second application scene, movie mode, multimedia mode, etc., which is not specifically limited in this application.

[0139] In a specific implementation, the projection lens module 220 includes a reflector group for receiving the image light 1 emitted by the projection device 210 and reflecting the image light 1 to form image light 2, so that the image light 2 is projected back onto the rear projection screen 230.

[0140] It should be noted that to enhance the viewing experience and user experience of in-car projection, projection device 210 is often located behind the second-row passenger seats. Therefore, the distance between projection device 210 and front projection screen 240 is often greater than the distance between projection device 210 and rear projection screen 230. Furthermore, to further enhance the outdoor camping projection experience, the image size on rear projection screen 230 needs to be larger than that on front projection screen 240.

[0141] By way of example and not limitation, in an in-vehicle projection scenario, the projection distance between the projection device 210 and the front projection screen 240 is approximately 1.1 meters to 1.3 meters, and the size of the projected image on the front projection screen 240 is approximately 32 inches. In this case, the throw ratio of the projection device 210 is approximately 1.3-1.8. In an out-of-vehicle projection scenario, the projection distance between the projection device 210 and the rear projection screen 230 is approximately 0.8 meters to 1.3 meters, and the size of the projected image on the rear projection screen 230 is approximately 50 inches. In this case, the throw ratio of the projection device 210 is approximately 0.8-1.3.

[0142] In a specific implementation, the projection lens module 220 is further used to change the projection ratio of the projection device 210 .

[0143] It should be noted that the projection lens module 220 changes the projection ratio of the projection device 210 by increasing or decreasing the projection ratio of the projection device 210. The projection ratio of the projection device 210 includes a ratio of the projection distance to the projection screen width.

[0144] Next, we will combine Figures 3 to 7 , different structures of the projection lens module 220 in the projection system 200 are described.

[0145] Figure 3 2 is a schematic structural diagram of another projection system 200 provided in an embodiment of the present application.

[0146] The projection lens module 220 includes an expander lens assembly 221 and a reflector assembly 222. The expander lens assembly 221 and the reflector assembly 222 are sequentially arranged on the light-emitting side of the projection device 210. The expander lens assembly 221 is used to change the projection viewing angle of the projection device 210. The expander lens assembly 221 is used to receive image light 1 and modulate the diffusion angle of image light 1. By modulating the diffusion angle of image light 1, the expander lens assembly 221 changes the width of the projected image projected by image light 1 onto the projection screen. The reflector assembly 222 is used to receive image light 1 emitted by the expander lens assembly 221 and reflect image light 1 to generate image light 2.

[0147] It should be understood that the angle expansion lens group 221 is a specific implementation of the first lens module in the implementation of this application and does not constitute any limitation on the scope of protection of this application.

[0148] It should be understood that the reflector group 222 is a specific implementation of the second lens module in the implementation of the present application and does not constitute any limitation on the scope of protection of the present application.

[0149] In a specific implementation, the reflector assembly 222 includes at least one reflector. The reflector is configured to receive and reflect image light 1 emitted by the angle expansion lens assembly 221 to form image light 2. The reflector forms a first angle with the vertical plane, and the first angle is less than or equal to 20 degrees.

[0150] It should be noted that, in the technical solution disclosed in the present application, when describing the angle, the plumb plane is used as the reference, and the clockwise defense line is the positive direction.

[0151] In a specific implementation, the projection system 200 further includes a first control module for controlling the size of the first angle. Furthermore, the first control module is disposed at one end or midpoint of at least one reflector to drive the reflector to rotate to control the size of the first angle.

[0152] It should be noted that the angle between the reflector and the vertical plane affects the angle between the projection plane and the vertical plane. When there is an angle between the projection plane and the vertical plane, the projected image will have keystone distortion. Therefore, to reduce keystone distortion and improve the clarity of the projected image, the first angle should be less than or equal to 20 degrees. The smaller the first angle, the less keystone distortion the projected image will have.

[0153] However, when the first angle is smaller than a certain angle range, the upper edge of the image light 2 formed by the reflection of the reflector will be blocked by the lower edge of the angle expansion lens group 221 or the projection device 210. For example, the blocking point 1 or the blocking point 2 shown in the figure. Therefore, along the direction of gravity, the upper edge of the image light 2 is lower than the lower edge of the transmission device and / or the angle expansion lens group 221. Along the direction of gravity, during the transmission process of the image light 2, the upper edge of the image light 2 is lower than the blocking point 1 and the blocking point 2. Among them, the blocking point 1 is the lowest position point of the projection device 210 along the direction of gravity; the blocking point 2 is the lowest position point of the angle expansion lens group 221 along the direction of gravity.

[0154] It should be noted that the positions of the angle-expanding lens assembly 221 and the projection device 210 in the direction of gravity in the accompanying drawings are merely schematic, and this application does not impose any specific restrictions on the positions of the angle-expanding lens assembly 221 and the projection device 210 in the direction of gravity. Furthermore, the relative positions of the obstruction points 1 and 2 in the drawings are also merely schematic, and this application does not impose any specific restrictions on the positions of the obstruction points 1 and 2 in the direction of gravity.

[0155] Figure 4 2 is a schematic structural diagram of a projection system 200 provided in an embodiment of the present application and mounted on a vehicle.

[0156] The figure shows a vehicle 100, with a trunk provided at the rear of the vehicle 100. When a trunk lid 101 is in an open state, a trunk opening 102 is formed at the rear of the vehicle.

[0157] In a specific implementation, the projection lens module 220 is configured to allow the image light 2 to be emitted from the trunk opening 102 .

[0158] In a specific implementation, the projection device 210 is disposed on the roof (not shown) of the vehicle 100. The projection lens module 220 is also disposed on the roof (not shown) of the vehicle 100 and is disposed on the side where the projection device 210 emits light.

[0159] The image light 1 emitted by the projection device 210 is expanded by the expansion lens group 221 and then incident on the reflector group 222. The reflector group 222 reflects the received image light 1 to form image light 2. The image light 2 can be emitted from the trunk opening 102. Along the direction of gravity, the upper edge of the image light 2 is lower than the upper edge of the trunk opening 102, and the lower edge of the image light 2 is higher than the lower edge of the trunk opening 102. Furthermore, when the upper edge of the image light 2 is emitted from the trunk opening 102, it will not be blocked by the trunk lid 101, nor will it be blocked by the lower crossbeam 103 of the vehicle trunk. In the horizontal direction, the left edge and the right edge of the image light 2 are both on the inner side of the trunk peripheral structure.

[0160] It should be understood that in some specific implementations, the trunk is also referred to as the rear trunk, tail box, luggage compartment, etc., and this application does not specifically define this.

[0161] It should be noted that the names of the structures surrounding the trunk opening 102 may vary depending on the vehicle manufacturer and model, and the names of the structures at the same location may not be the same. This application does not specifically limit the names of vehicle component structures. For example, the upper peripheral structures of the trunk opening 102 include, but are not limited to, the trunk roof interior panel. The lower peripheral structures of the trunk opening 102 include, but are not limited to, the lower crossbeam 103, the trunk tailgate sill, and the upper edge of the lower bumper. The peripheral structures on both sides of the trunk opening 102 in the horizontal direction include, but are not limited to, the inner trunk trim panel, the lower edge of the vehicle's D-pillar, and the inner edge of the rear fender.

[0162] In a specific implementation, the edge of the trunk opening 102 is provided with a fixing point 1 and a fixing point 2. The fixing point 1 and the fixing point 2 are used to fix the bottom edge of the rear projection screen 230.

[0163] It should be understood that fixed point 1 is a specific implementation of the first fixed point in the implementation of this application and does not constitute any limitation on the scope of protection of this application.

[0164] It should be understood that fixed point 2 is a specific implementation of the second fixed point in the implementation of this application and does not constitute any limitation on the scope of protection of this application.

[0165] In a specific implementation, the rear projection screen 230 is disposed on the inner side of the vehicle's trunk lid 101, or in the roof space of the vehicle's trunk opening 102. Furthermore, the rear projection screen 230 can be disposed at the position of the fixing point 5 or the fixing point 6 shown in the figure.

[0166] In one specific implementation, the rear projection screen 230 is unfolded or folded by rotating about a first direction. The first direction includes a clockwise direction or a counterclockwise direction. For example, the rear projection screen 230 can be folded by rotating clockwise, switching from an unfolded state to a folded state. The rear projection screen 230 can be unfolded by rotating counterclockwise, switching from a folded state to an unfolded state.

[0167] In a specific implementation, the projection system 200 includes a second driving module configured to drive the rear projection screen 230 to rotate about a first direction. Furthermore, the second driving module may be disposed at one end of the rear projection screen 230 .

[0168] It should be noted that when the rear projection screen 230 is set at the fixed point 5 or the fixed point 6, when the rear projection screen 230 is in the unfolded state, the lower edge of the rear projection screen 230 can be fixed at the fixed point 1 and the fixed point 2, so that the rear projection screen 230 forms a fourth angle with the vertical plane in the unfolded state.

[0169] In one specific implementation, the trunk opening 102 of the vehicle 100 is provided with fixing points 1, 2, 3, and 4. The rear projection screen 230 may be a separate accessory, not integrated into the vehicle 100. When needed, the user can fix the four corners of the rear projection screen 230 to fixing points 1, 2, 3, and 4, respectively, to form a fourth angle between the rear projection screen 230 and the vertical plane.

[0170] In one specific implementation, the trunk opening of the vehicle 100 is provided with fixing points for securing an external tent. The external tent is also provided with fixing points for securing the rear projection screen 230. When needed, the user can secure the rear projection screen 230 to the fixing points provided on the external tent, so that the rear projection screen 230 forms a fourth angle with the vertical plane.

[0171] In a specific implementation, the fourth angle is greater than or equal to 0 degrees. Further, the fourth angle is less than or equal to 40 degrees.

[0172] In a specific implementation, the rear projection screen 230 is disposed on a side of a side window of the vehicle 100. The projection lens module 220 is configured to transmit the image light 2 in the direction of the side window of the vehicle.

[0173] It should be noted that the present application does not specifically limit the arrangement of the rear projection screen 230 on one side of the left side window or the right side window of the vehicle 100 .

[0174] In a specific implementation, the rear projection screen 230 is integrated into the roof of the vehicle 100 on one side of the side window, or is integrated around the window frame of the side window. The second driving module is used to drive the rear projection screen 230 to unfold and fold.

[0175] In one specific implementation, fixing points are provided on the vehicle door or vehicle frame where the side windows of the vehicle 100 are located. The rear projection screen 230 may be a separate accessory, not integrated into the vehicle 100. When needed, the user can secure the rear projection screen 230 using the provided fixing points with the vehicle door open.

[0176] In one specific implementation, a side window of the vehicle 100 is provided with a fixing point for securing an external tent on the vehicle side. The external tent is also provided with fixing points for securing the rear projection screen 230. When needed, the user can secure the rear projection screen 230 to the fixing points provided on the external tent.

[0177] It should be noted that the doors where the side windows of the vehicle 100 are located may include flat doors or wing doors that open and close horizontally, and this application does not impose any special restrictions on this.

[0178] Figure 5 2 is a schematic structural diagram of another projection system 200 provided in an embodiment of the present application.

[0179] In a specific implementation, the reflector assembly 222 includes at least two reflectors. The reflector 223 is configured to receive and reflect the image light 1 emitted by the angle expansion lens assembly 221 to form image light 3. The reflector 224 is configured to receive and reflect the image light 3 to form image light 2.

[0180] It should be understood that the reflector 223 is a specific implementation of the first reflector in the implementation of the present application and does not constitute any limitation on the protection scope of the present application.

[0181] It should be understood that the reflector 224 is a specific implementation of the second reflector in the implementation of the present application and does not constitute any limitation on the protection scope of the present application.

[0182] It should be understood that image light 3 is a specific implementation of the third image light in the implementation of the present application, and does not constitute any limitation on the protection scope of the present application.

[0183] In a specific implementation, a second angle is formed between the reflector 223 and the reflector 224 , and the second angle is greater than or equal to 90 degrees.

[0184] It should be understood that the second angle includes an angle formed by the plane where the reflector 223 is located and the plane where the reflector 224 is located.

[0185] In one specific implementation, the second angle is less than or equal to a specific angle threshold. The second angle is used to allow the image light 2 to be emitted from the trunk opening 102 and transmitted to the rear projection screen 230. The threshold range of the second angle is related to the vehicle model, body size, and trunk opening size.

[0186] In a specific implementation, the second angle is less than or equal to 130 degrees.

[0187] In a specific implementation, a third angle is formed between the reflector 224 and the vertical plane.

[0188] In a specific implementation, the projection system 200 further includes a second control module for controlling the size of the third angle. Furthermore, the second control module is disposed at one end or the midpoint of the reflector 224 to drive the reflector 224 to rotate to control the size of the third angle.

[0189] It should be noted that Figure 5 The implementation of the projection system 200 mounted on the vehicle 100 shown in FIG can be referred to Figure 3 as well as Figure 4 For the sake of brevity, some of the implementation methods are not described in detail in this application.

[0190] Figure 6 2 is a schematic structural diagram of another projection system 200 provided in an embodiment of the present application.

[0191] In a specific implementation, the reflector 223 and the reflector 224 included in the reflector group 222 can be integrated into an integral reflector.

[0192] In a specific implementation, the reflector assembly 222 includes an “L”-shaped reflector.

[0193] In a specific implementation, the L-shaped structural angle of the reflector assembly 222 is a second angle, and the second angle is greater than or equal to 90 degrees.

[0194] In a specific implementation, the second angle is less than or equal to 130 degrees.

[0195] In a specific implementation, a third angle is formed between the reflector 224 in the reflector assembly 222 and the vertical plane.

[0196] In a specific implementation, the projection system 200 further includes a second control module for controlling the size of the third angle. Further, the second control module is disposed at one end or the midpoint of the reflector assembly 222 to drive the reflector assembly 222 to rotate to control the size of the third angle.

[0197] It should be noted that Figure 6 The implementation of the projection system 200 mounted on the vehicle 100 shown in FIG can be referred to Figures 3 to 5 For the sake of brevity, some of the implementation methods are not described in detail in this application.

[0198] By way of example and not limitation, the following Figure 7 The structure of the angle expansion lens assembly 221 provided in this application is described.

[0199] Figure 7 2 is a schematic structural diagram of an angle expansion lens assembly 221 provided in an embodiment of the present application.

[0200] In one specific implementation, the angle-expanding lens assembly 221 includes at least one lens assembly with a positive focal length and at least one lens assembly with a negative focal length. The angle-expanding lens assembly 221 is configured to receive the image light 1 emitted by the projection device 210 and increase the diffusion angle of the image light 1. The angle-expanding lens assembly 221 is configured to change the throw ratio of the projection device 210.

[0201] In a specific implementation, the angle expansion lens assembly 221 is used to shorten the focal length of the projection device 210 and / or expand the width of the projection image of the projection device 210 .

[0202] It should be understood that in some specific implementations, the diffusion angle of the light beam is also referred to as the divergence angle of the light beam, and this application does not impose any special limitation on this.

[0203] Figure 8 A schematic flowchart of a method 800 of a projection system provided in an embodiment of the present application is provided.

[0204] Method 800 may be executed by a control device, specifically, a drive module and / or control module included in the projection system, or by a master control system, master control device, or processing chip of a vehicle connected to the projection system. Specifically, method 800 includes the following steps.

[0205] S802: In response to a first application scenario of the projection system, the projection device emits a first image light. Alternatively, in response to a second application scenario of the projection system, the projection device emits a fourth image light.

[0206] In a specific implementation, the vehicle is equipped with a projection lens module. In response to a first application scenario of the projection system, method 800 further includes moving the projection lens module to a first position for receiving a first image light emitted by the projection device.

[0207] In a specific implementation, the vehicle projection lens module is disposed on a roof of the vehicle and is moved by a first slide rail. In response to a first application scenario of the projection system, method 800 further includes controlling the projection lens module to move along the first slide rail to a first position.

[0208] In a specific implementation, in response to a first application scenario of the projection system, method 800 further includes adjusting a first angle between a first reflector in the projection lens module and a vertical plane so that the second image light is emitted from a trunk opening of the vehicle.

[0209] In another specific implementation, in response to the first application scenario of the projection system, method 800 further includes adjusting a third angle between the second reflector in the projection lens module and the plumb plane so that the second image light is emitted from the trunk opening of the vehicle.

[0210] In a specific implementation, the vehicle carries a first projection screen. In response to a first application scenario of the projection system, the method 800 further includes deploying the first projection screen.

[0211] In a specific implementation, the vehicle is equipped with a second projection screen. In response to a second application scenario of the projection system, method 800 further includes deploying the second projection screen.

[0212] It should be noted that, when the fourth image light and the second image light carry the same image information and are incident on the same projection plane, the projection image formed by the fourth image light and the projection image formed by the second image light are mirror-symmetrical or centrally symmetrical.

[0213] It should be understood that when the projection lens module includes a first lens module, the second image light includes image light with an increased diffusion angle, and the sizes of the projected images formed by the second image light and the fourth image light on the same projection plane may be different, and the shape of the projected image formed is mirror-symmetrical or centrally symmetrical.

[0214] Optionally, before S802, the method further includes the following S801.

[0215] S801: Acquire an application scenario of a projection system of a vehicle, where the application scenario includes a first application scenario and a second application scenario.

[0216] In some possible implementations, the processing device obtains the application scenario of the projection system by receiving instructions from the user. For example, when a user desires in-vehicle or out-vehicle projection, the user selects the first application scenario or the second application scenario for the projection system on an interactive interface. The control device then determines the current vehicle application scenario based on the user's instructions, thereby controlling the projection device to emit image light and controlling corresponding in-vehicle devices to switch between different modes.

[0217] In other possible implementations, the processing device may automatically adjust the projection system's application scenario using detectors, sensors, and the like. For example, a sensor or detector may be positioned around a first position on a vehicle to detect whether the projection lens module is installed in the first position. When a user desires to project outside the vehicle, the user may secure the projection lens module in the first position, causing the sensor or detector to indicate to the vehicle's control system that the vehicle has switched to the first application scenario, thereby controlling the projection device to emit image light and controlling corresponding onboard devices to switch between different modes.

[0218] In one possible implementation, the vehicle is currently projecting through the second application scenario and, upon receiving a user instruction to switch to the first application scenario, the multimedia signal source of the projection system remains unchanged, and only the projection mode is switched. In this implementation, method 800 further includes, in response to the projection system switching to the first application scenario, horizontally flipping and / or vertically flipping the image light emitted by the projection device.

[0219] Specifically, when the second lens module includes at least one reflecting mirror, in response to the projection system switching to the first application scenario, the image light currently emitted by the projection device is flipped in the horizontal direction.

[0220] Specifically, when the second lens module includes at least two reflectors, in response to the projection system switching to the first application scenario, the image light emitted by the projection device at the current moment is flipped in the horizontal and vertical directions.

[0221] It should be noted that the image light emitted at the current moment includes the moment when the instruction to switch to the first application scene is received. The light beam emitted by the projection device at the current moment is the image light beam in a non-rear projection scene, and the projection system is not in the first application scene at the current moment.

[0222] It should be understood that when the vehicle is equipped with a projection lens module, in response to the projection system switching to the first application scenario, method 800 further includes moving the projection lens module along the first slide rail to the first position.

[0223] It should be understood that, in a case where the vehicle is equipped with the first projection screen, in response to the projection system switching to the first application scenario, method 800 further includes unfolding the first projection screen.

[0224] It should be understood that, in the case where the vehicle is equipped with a second projection screen, in response to the projection system switching to the first application scenario, method 800 further includes folding the second projection screen.

[0225] In another possible implementation, the vehicle is currently projecting in a first application scenario and, upon receiving a user instruction to switch to a second application scenario, the multimedia signal source of the projection system remains unchanged, and only the projection mode is switched. In this implementation, method 800 further includes, in response to the projection system switching to the second application scenario, horizontally flipping and / or vertically flipping the image light emitted by the projection device.

[0226] It should be understood that, when the vehicle is equipped with a projection lens module, in response to the projection system switching to the second application scenario, method 800 further includes moving the projection lens module along the first slide rail to a second position, where the second position is different from the first position. When the projection lens module is in the second position, the projection lens module cannot receive the light beam emitted by the projection device.

[0227] It should be understood that, in the case where the vehicle is equipped with the first projection screen, in response to the projection system switching to the second application scenario, method 800 further includes folding the first projection screen.

[0228] It should be understood that, in the case where the vehicle is equipped with a second projection screen, in response to the projection system switching to the second application scenario, method 800 further includes unfolding the second projection screen.

[0229] It should be noted that, in response to the projection system switching to the second application scenario, method 800 may also include the same steps as switching to the first application scenario. For the sake of brevity, this application will not elaborate on them here.

[0230] Figure 9 A schematic structural diagram of a control device provided in an embodiment of the present application is shown.

[0231] As shown in the figure, the control device 1000 may include a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 may be used to implement corresponding communication functions. The transceiver unit 1010 may also be referred to as a communication interface or communication unit. The processing unit 1020 may be used to determine and generate information. Optionally, the transceiver unit 1010 may include a receiving unit and a transmitting unit. The receiving unit is used to implement the receiving function, and the transmitting unit is used to implement the transmitting function.

[0232] Optionally, the control device 1000 may further include a storage unit, which may be used to store instructions and / or data. The processing unit 1020 may read the instructions and / or data in the storage unit so that the device implements the aforementioned method embodiment.

[0233] The control device 1000 may be the control device in the above method embodiment, or may be a chip for implementing the functions of the control device in the above method embodiment. It should be understood that the control device 1000 may correspond to the drive module or control module or control device in the implementation described in this application.

[0234] In one possible design, the processing unit 1020 is configured to control the image pattern of the image light emitted by the projection device based on the application scenario of the projection module. The processing unit 1020 is also configured to determine the application scenario based on user instructions or sensor information. The transceiver unit 1010 can be configured to obtain image information or video stream information. The transceiver unit 1010 can also be configured to obtain user information instructions, sensor data output by sensors, and the like.

[0235] It should be understood that the control device 1000 herein is embodied in the form of a functional unit. The term "unit" herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group processor, etc.) and memory for executing one or more software or firmware programs, combined logic circuits, and / or other suitable components that support the described functionality.

[0236] In addition, the transceiver unit 1010 may also be a transceiver circuit (for example, may include a receiving circuit and a transmitting circuit), and the processing unit 1020 may be a processing circuit.

[0237] Figure 10 A structural schematic diagram of another control device provided in an embodiment of the present application is shown.

[0238] As shown in the figure, the control device 2000 may include a processor 2010.

[0239] Optionally, the apparatus 2000 further includes a transceiver 2020, which is configured to receive and / or transmit signals. For example, the processor 2010 is configured to control the transceiver 2020 to receive and / or transmit signals. Optionally, the transceiver 2020 may include a receiver and a transmitter, wherein the receiver is configured to receive signals and the transmitter is configured to transmit signals.

[0240] The processor 2010 can be coupled to the memory 2030, which is used to store computer programs or instructions and / or data. The processor 2010 is used to execute the computer programs or instructions stored in the memory 2030, or read the data stored in the memory 2030 to execute the methods in the above method embodiments.

[0241] Optionally, there are one or more processors 2010 .

[0242] Optionally, the memory 2030 is one or more.

[0243] Optionally, the memory 2030 is integrated with the processor 2010 or provided separately.

[0244] As an example, the processor 2010 may have Figure 9 The processing unit 1020 shown in FIG. 1 may have the function of the processing unit 1020, the memory 2030 may have the function of a storage unit, and the transceiver 2020 may have Figure 9 The functions of the transceiver unit 1010 are shown in FIG.

[0245] Exemplarily, the control device 2000 may be used to implement the operations performed by the control device, control module, or drive module in the above various method embodiments.

[0246] It should be understood that the specific process of each transceiver and processor executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0247] The present application also provides a processor configured to execute computer programs or instructions stored in a memory, or read data / signaling stored in a memory, to execute the methods in the above method embodiments.

[0248] An embodiment of the present application also provides a chip, including a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface and executes the methods provided in the above embodiments.

[0249] An embodiment of the present application further provides a computer-readable storage medium on which computer instructions for implementing the methods executed by the control device or control module in the above-mentioned method embodiments are stored.

[0250] For example, when the computer program is executed by a computer, the computer can implement the methods performed by the control device or control module in each embodiment of the above method.

[0251] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed by a computer, implement the methods performed by the control device or control module in the above-mentioned method embodiments.

[0252] The embodiment of the present application further provides a cockpit system, comprising a seat and the projection system of the above-mentioned implementation. The seat is used for a user to sit on the seat.

[0253] An embodiment of the present application further provides a vehicle, comprising a projection system or a cockpit system as described in the above implementation manner, and a vehicle body, wherein the projection system or the cockpit system is installed on the vehicle body.

[0254] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0255] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0256] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0257] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0258] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A projection system, characterized in that: Applied to vehicles, including: a projection device, disposed in the vehicle body, for emitting a first image light, wherein the first image light is a beam carrying image information; The projection lens module is arranged on the light-emitting side of the projection device, and is used to change the transmission direction of the first image light to form a second image light, so that the second image light is transmitted toward the rear of the vehicle or the side window of the vehicle.

2. The system according to claim 1, wherein: The projection lens module is also used to change the projection ratio of the projection device.

3. The system according to claim 1 or 2, characterized in that The projection lens module includes a first lens module and a second lens module, wherein: a first lens module, disposed between the projection device and the second lens module, for modulating the diffusion angle of the first image light; The second lens module is used to receive the modulated first image light and reflect it to form the second image light.

4. The system according to claim 3, characterized in that The second lens module includes a first reflector, and the first reflector is used to receive the modulated first image light and reflect it to form the second image light. A first angle is formed between the first reflector and the plumb plane, and the first angle is less than or equal to 20 degrees.

5. The system according to claim 3, wherein: The second lens module includes a first reflector and a second reflector, wherein: The first reflector is configured to receive and reflect the modulated first image light to form a third image light; The second reflector is configured to receive and reflect the third image light to form the second image light; A second angle is formed between the first reflector and the second reflector, and the second angle is greater than or equal to 90 degrees.

6. The system according to any one of claims 1 to 5, characterized in that A trunk opening is provided at the rear of the vehicle, and the projection lens module is used to enable the second image light to be emitted from the trunk opening.

7. The system according to any one of claims 1 to 6, characterized in that Along the direction of gravity, the upper edge of the second image light is lower than the lower edge of the projection device and / or the first lens module, and the lower edge of the second image light is higher than the upper edge of the lower edge of the trunk opening of the vehicle.

8. The system according to any one of claims 1 to 7, characterized in that Also includes: The first projection screen is arranged in the rear space of the vehicle and is used for receiving the second image light and transmitting it to form the first image.

9. The system according to claim 4, wherein: Also includes: The first control module is configured to control the size of the first angle.

10. The system according to claim 5, wherein: Also includes: The second control module is used to control the size of a third angle, where the third angle includes the angle formed between the second reflector and the plumb plane.

11. The system according to any one of claims 1 to 10, characterized in that Also includes: The first driving module is used to drive the projection lens module to move to a first position along a first slide rail so that the projection lens module receives the first image light. The first slide rail is provided on the roof of the vehicle.

12. The system according to any one of claims 8 to 11, characterized in that Also includes: The second driving module is used to drive the first projection screen to rotate around a first direction, and the first projection screen is arranged on the inner side of the trunk lid of the vehicle or on the trunk roof of the vehicle.

13. The system according to any one of claims 8 to 12, characterized in that The edge of the trunk opening is provided with a first fixing point and a second fixing point for fixing the lower edge of the first projection screen so that the first projection screen forms a fourth angle with the vertical plane when in the unfolded state, and the fourth angle is greater than or equal to 0 degrees.

14. The system according to any one of claims 1 to 13, characterized in that Also includes: A second projection screen is provided on the light-emitting side of the projection device; When the second projection screen receives the first image light, a second image is formed. The second image is mirror-symmetrical or centrally symmetrical to the first image.

15. A method for controlling a projection system, applied to a projection system of a vehicle, characterized in that: The projection system includes a projection device and a projection lens module, and the method includes: In response to a first application scenario of the projection system, the projection device is caused to emit a first image light, wherein the projection lens module is disposed on a light-emitting side of the projection device, and the projection lens module is used to change a transmission direction of the first image light to form a second image light, and the second image light is transmitted toward the rear of the vehicle or toward a side window of the vehicle; In response to a second application scenario of the projection system, the projection device is enabled to emit fourth image light.

16. The method according to claim 15, characterized in that The fourth image light and the second image light have different transmission directions. When the fourth image light and the second image light are incident on the same projection plane, the projection image formed by the fourth image light and the projection image formed by the second image light are mirror-symmetrical or center-symmetrical.

17. The method according to claim 15 or 16, characterized in that In response to the projection system being switched to the first application scenario, the method further includes acquiring the first image light; The first image light includes image light obtained by performing horizontal flipping and / or vertical flipping processing on the image light currently emitted by the projection device.

18. The method according to claim 15 or 16, characterized in that The method further comprises: In response to the projection lens module being located at the first position, the projection system is turned on or switched to the first application scenario; The first position is set on the roof of the vehicle, so as to enable the projection lens module to receive the first image light.

19. The method according to any one of claims 15 to 18, characterized in that In response to the first application scenario of the projection system, the method further includes: The projection lens module is controlled to move to the first position along a first slide rail, where the first slide rail is disposed on a roof of the vehicle.

20. The method according to any one of claims 15 to 19, characterized in that In response to the first application scenario of the projection system, the method further includes: controlling the size of the first angle so that the second image light is emitted from the trunk opening of the vehicle; The first angle includes an angle formed between a first reflector in the projection lens module and a vertical plane, the first reflector is used to receive and reflect the first image light to form the second image light, and the first angle is less than or equal to 20 degrees.

21. The method according to any one of claims 15 to 20, characterized in that In response to the first application scenario of the projection system, the method further includes: controlling a size of the third angle so that the second image light is emitted from the trunk opening of the vehicle; The third angle includes the angle formed between the second reflector in the projection lens module and the plumb plane. The first reflector of the projection lens module is used to receive the first image light and reflect it to form the third image light. The second reflector is used to receive the third image light and reflect it to form the second image light.

22. The method according to any one of claims 15 to 21, characterized in that In response to the first application scenario of the projection system, the method further includes: The first projection screen is driven to unfold, so that the first projection screen receives the second image light and transmits the second image light to form a first image.

23. A cockpit system, characterized in that: The invention comprises the projection system according to any one of claims 1 to 14 and a seat, wherein the seat is used for a user to sit on the seat.

24. A means of transport, characterized in that: The method comprises the projection system according to any one of claims 1 to 14 or the cockpit system according to claim 23.

25. A control device, characterized in that: comprising a processor configured to, by executing computer programs or instructions, or by executing logic circuits, The control device is caused to execute the method according to any one of claims 15 to 22.

26. A computer-readable storage medium, characterized in that The computer readable storage medium stores a computer program or instruction. When the computer program or instruction is executed on a computer, Such that the method according to any one of claims 15 to 22 is performed.

27. A computer program product, characterized in that Contains instructions that, when executed on a computer, Such that the method according to any one of claims 15 to 22 is performed.

28. A chip system, characterized in that: The chip system includes a processor, a memory and an input / output port, wherein the memory is used to store a computer program; the processor is used to execute the computer program stored in the memory. so that the processor executes the method according to any one of claims 15 to 22.

Images