Screen projection method and device applied to vehicle-mounted screen
By acquiring vehicle status and content attributes and dynamically allocating computing resources, the problem of display chaos and resource contention in multi-user screen projection scenarios is solved, realizing in-vehicle multi-screen collaborative management and improving interaction efficiency and security.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-31
AI Technical Summary
Existing technologies struggle to effectively coordinate concurrent signal inputs in multi-user device screen mirroring scenarios, leading to issues such as chaotic display layout, resource contention, and delayed safety prompts.
By acquiring vehicle status, content source and type, the system dynamically determines target priority strategies and computing resource quantities, collaboratively manages multiple projection requests, and achieves orderly scheduling and display area allocation.
It improves the efficiency and stability of multi-screen collaborative interaction in the vehicle, ensures that key information is not obscured, optimizes resource utilization, and enhances driving safety and user experience.
Smart Images
Figure CN121764433A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle control technology, and in particular to a projection method and device for in-vehicle screens. Background Technology
[0002] With the widespread adoption of smart mobile devices, projecting personal device content onto in-vehicle screens has become a core user demand, and related projection protocols and functions are gradually becoming standard features in vehicles. However, current technical solutions are primarily designed around single-user, single-task interaction scenarios. When multiple occupants are in the vehicle and all wish to share or operate their personal devices on the in-vehicle screen, this exclusive projection architecture reveals its inherent limitations. The system struggles to effectively coordinate concurrent multi-signal inputs and cannot perform system-level resource management and conflict control for these parallel tasks. This can easily lead to forced session switching, sacrificing the simultaneous use needs of multiple users. Furthermore, when multiple accesses are allowed, issues such as chaotic display layouts, obscuring critical information, and disorderly contention for system resources (such as rendering power and network bandwidth) can result in a degraded overall experience and even delayed safety warnings. Summary of the Invention
[0003] This invention provides a screen projection method and apparatus for use in vehicle screens, which solves the technical problem of chaotic screen projection management caused by exclusive screen projection in the case of multiple user devices.
[0004] In a first aspect, embodiments of the present invention provide a screen projection method for use on an in-vehicle screen, the method comprising: In response to a screen mirroring request, the vehicle's current vehicle status, the target content indicated by the screen mirroring request, and the content attributes of the target content are obtained, including the content source and content type of the target content. Based on the vehicle status, a target priority strategy is determined from a preset safety priority strategy, and based on the content source and a preset target mapping strategy, the target display area of the target content is determined from at least one in-vehicle screen. The playback priority of the target content is determined from the target priority strategy based on the content source and / or the content type. Based on the playback priority, the target computing resources corresponding to the target content are allocated from the vehicle's computing resources. The target content is processed based on the target computing resource amount, so that the image content included in the processed target content is projected onto the target display area.
[0005] Optionally, the vehicle state can be either a driving state or a parked state; determining the target priority strategy from the preset safety priority strategy based on the vehicle state includes: if the vehicle state is a driving state, using the driving protection strategy in the safety priority strategy as the target priority strategy, wherein the driving protection strategy has multiple different content attributes corresponding to different playback priorities; if the vehicle state is a parked state, using the parking entertainment strategy in the safety priority strategy as the target priority strategy, wherein the parking entertainment strategy has multiple different content attributes corresponding to the same playback priority.
[0006] Optionally, if the target priority strategy is the driving protection strategy, determining the playback priority of the target content from the target priority strategy based on the content source and / or the content type includes: if the content source is the driver's seat and the content type is navigation, determining the playback priority as a first priority based on the driving protection strategy; if the content source is the driver's seat and the content type is not navigation, determining the playback priority as a second priority based on the driving protection strategy; if the content source is the passenger seat or rear seat, determining the playback priority as a third priority based on the driving protection strategy, wherein the target computing resources allocated to the first priority are greater than the target computing resources allocated to the second priority, and the target computing resources allocated to the second priority are greater than the target computing resources allocated to the third priority.
[0007] Optionally, the target computing resources include at least one of the frame rate, bandwidth, and resolution required to project the target content onto the target display area.
[0008] Optionally, the target content further includes audio content; after processing the target content based on the target computing resource amount, the method further includes: if the playback priority is the first priority, the processed audio content is played through the vehicle's audio system; if the playback priority is the second or third priority, the processed audio content is played through the local audio system corresponding to the content source.
[0009] Optionally, the method further includes: during the process of projecting the processed target content, including the image content, onto the target display area, obtaining the updated playback priority of the target content; adjusting the target computing resources corresponding to the target content and the target display area according to the updated playback priority; and processing the target content based on the adjusted target computing resources so that the processed target content, including the image content, is projected onto the adjusted target display area.
[0010] Optionally, before determining the target display area of the target content from at least one in-vehicle screen based on the content source and a preset target mapping strategy, the method further includes: obtaining the current scene mode of the vehicle; and determining the target mapping strategy from a variety of preset mapping strategies based on the current scene mode of the vehicle.
[0011] Optionally, after processing the target content based on the target computing resources to project the processed image content onto the target display area, the method further includes: if the target display area is located on the vehicle's central control screen, disabling responses to the source application of the target content and / or the target display area.
[0012] Optionally, processing the target content based on the target computing resource quantity includes: if the source of the target content is the primary driver, then processing the target content in a preset primary driver processing channel using the target computing resource quantity; if the source of the target content is not the primary driver, then constructing a temporary processing channel for the target content, and processing the target content in the temporary processing channel using the target computing resource quantity.
[0013] Secondly, embodiments of the present invention provide a screen projection device for use on vehicle-mounted screens, the device comprising: The acquisition module is used to respond to the screen projection request by acquiring the current vehicle status, the target content indicated by the screen projection request, and the content attributes of the target content, wherein the content attributes include the content source and content type of the target content; The determination module is used to determine a target priority strategy from a preset safety priority strategy based on the vehicle status, and to determine the target display area of the target content from at least one in-vehicle screen based on the content source and a preset target mapping strategy; and to determine the playback priority of the target content from the target priority strategy based on the content source and / or the content type. The allocation module is used to allocate the target computing resources corresponding to the target content from the vehicle's computing resources according to the playback priority; The processing module is used to process the target content based on the target computing resource amount, so that the image content included in the processed target content is projected onto the target display area.
[0014] Thirdly, embodiments of the present invention provide a vehicle, including: processor; A memory for storing instructions to be executed by the processor, wherein the processor is configured to execute the instructions to implement the method as described in the first aspect.
[0015] Fourthly, embodiments of the present invention provide a storage medium that, when instructions in the storage medium are executed by a vehicle's processor, enables the vehicle to perform the method described in the first aspect.
[0016] Fifthly, embodiments of the present invention provide a computer program product, the program product comprising a computer program, the computer program being executed by a processor as described in the first aspect.
[0017] According to an embodiment of the present invention, a screen projection method for in-vehicle screens is provided. In response to a screen projection request, the method acquires the current vehicle status, the target content indicated by the screen projection request, and the content attributes of the target content, including the content source and content type of the target content. Based on the vehicle status, a target priority strategy is determined from a preset security priority strategy, and based on the content source and a preset target mapping strategy, a target display area for the target content is determined from at least one in-vehicle screen. Based on the content source and / or content type, a playback priority for the target content is determined from the target priority strategy. Based on the playback priority, a target computing resource amount corresponding to the target content is allocated from the vehicle's computing resources. The target content is processed based on the target computing resource amount so that the image content included in the processed target content is projected onto the target display area. Upon receiving a screen projection request, the system can determine the target priority strategy based on the vehicle status, the target display area based on the content source, and the target computing resource quantity based on the content source and / or content type. Finally, the target computing resource quantity is used to process the target content so that it is displayed on the target display area. By collaboratively judging the vehicle status, content source, and content type, the system dynamically determines the target display area of the target content and allocates the matching target computing resource quantity. This enables the orderly scheduling and management of multiple concurrent screen projection requests, overcoming the display conflicts and resource contention problems that are easily caused by existing exclusive screen projection solutions in multi-user scenarios, and improving the interaction efficiency and system stability of in-vehicle multi-screen collaboration. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 The flowchart of a screen projection method for in-vehicle screens provided by an embodiment of the present invention is shown; Figure 2The structure of a projection device for an in-vehicle screen provided in one embodiment of the present invention is shown; Figure 3 A structural block diagram of a vehicle provided in one embodiment of this application is shown. Detailed Implementation
[0020] As described in the background section, with the widespread adoption of smart mobile terminals, projecting personal device content onto in-vehicle screens has become one of the core user demands, and related projection protocols and functions are gradually becoming standard features in vehicles. However, current technical solutions are primarily designed around single-user, single-task interaction scenarios. When multiple occupants are present in the vehicle and all wish to share or operate their personal device content on the in-vehicle screen, this exclusive projection architecture exposes its inherent limitations. The system struggles to effectively coordinate concurrent multi-channel signal inputs, and it cannot perform system-level resource management and conflict control for these parallel tasks. This can easily lead to forced session switching, sacrificing the simultaneous use needs of multiple users. Alternatively, when multiple access channels are allowed, issues such as chaotic display layout, obscuring of critical information, and disorderly contention of system resources (such as rendering computing power and network bandwidth) can result in a decline in overall experience and even delays in safety alerts.
[0021] According to an embodiment of the present invention, a screen projection method for in-vehicle screens is provided. In response to a screen projection request, the method acquires the current vehicle status, the target content indicated by the screen projection request, and the content attributes of the target content, including the content source and content type of the target content. Based on the vehicle status, a target priority strategy is determined from a preset security priority strategy, and based on the content source and a preset target mapping strategy, a target display area for the target content is determined from at least one in-vehicle screen. Based on the content source and / or content type, a playback priority for the target content is determined from the target priority strategy. Based on the playback priority, a target computing resource amount corresponding to the target content is allocated from the vehicle's computing resources. The target content is processed based on the target computing resource amount so that the image content included in the processed target content is projected onto the target display area. Upon receiving a screen projection request, the system can determine the target priority strategy based on the vehicle status, the target display area based on the content source, and the target computing resource quantity based on the content source and / or content type. Finally, the target computing resource quantity is used to process the target content so that it is displayed on the target display area. By collaboratively judging the vehicle status, content source, and content type, the system dynamically determines the target display area of the target content and allocates the matching target computing resource quantity. This enables the orderly scheduling and management of multiple concurrent screen projection requests, overcoming the display conflicts and resource contention problems that are easily caused by existing exclusive screen projection solutions in multi-user scenarios, and improving the interaction efficiency and system stability of in-vehicle multi-screen collaboration.
[0022] The technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present invention will now be described with reference to the accompanying drawings.
[0023] Before introducing the screen projection method for in-vehicle screens provided in one embodiment of the present invention, it is understood that one embodiment of the present invention also provides a screen projection system for in-vehicle screens. The system may include a user terminal device and a vehicle with a configured in-vehicle infotainment system. The user terminal device can be used to send a screen projection request to the in-vehicle infotainment system, facilitating the vehicle to perform actions such as... upon receiving the screen projection request. Figure 1 The screen projection method shown can be applied to an in-vehicle screen. The vehicle may include an electronic control unit, which can be configured with an in-vehicle infotainment system that processes vehicle data.
[0024] Figure 1 The flowchart illustrates a screen projection method for in-vehicle screens according to an embodiment of the present invention. For example... Figure 1 As shown, the screen projection method for in-vehicle screens provided in this embodiment of the invention includes steps 110 to 150.
[0025] Step 110: In response to the screen projection request, obtain the current vehicle status, the target content indicated by the screen projection request, and the content attributes of the target content, wherein the content attributes include the content source and content type of the target content.
[0026] In this embodiment of the invention, the screen projection request can come from any terminal device, such as a mobile terminal of a user in the vehicle. The screen projection request indicates that the target content on the terminal device should be projected onto the vehicle screen. After receiving the screen projection request, the vehicle system configured in the electronic control unit can obtain the vehicle status, the target content, and the content attributes. The vehicle status can include driving status and parking status. The target content can be the content requested to be projected onto the vehicle screen, such as a navigation screen or a music playback screen. The target content can include audio content and / or image content. The content attributes of the target content can include the content source and content type. The content source can indicate that the screen projection request originates from a seating area in the vehicle, such as the driver's seat or passenger seat. The content type can be determined based on the source application of the target content. For example, if the source application is a navigation application, the content type can be navigation; if the source application is a video playback application, the content type can be audio-visual entertainment.
[0027] In this embodiment of the invention, the vehicle can receive and respond to screen projection requests from terminal devices via a wired connection, or via a wireless connection such as Bluetooth. Upon receiving a screen projection request, the vehicle responds by obtaining the current vehicle status from factors such as vehicle speed, gear position, and steering wheel angle. It then determines the content source from the seating area that issued the screen projection request using at least one of the following: an in-vehicle camera, a pressure sensor, and Bluetooth beacon positioning. Finally, it analyzes the source application to determine the target content and content type, and then executes step 120.
[0028] Step 120: Determine the target priority strategy from the preset security priority strategy based on the vehicle status, and determine the target display area of the target content from at least one in-vehicle screen based on the content source and the preset target mapping strategy.
[0029] In this embodiment of the invention, the safety priority strategy can characterize the coordination and management of target content under different vehicle states. For example, in driving mode, driving safety should be prioritized, and target content from the autonomous driving system should be given the highest priority, while target content from the passenger seat should be assigned a lower priority than target content from the driver's seat. Multiple safety priority strategies can be preset within the vehicle system, each corresponding to a different vehicle state. Based on the vehicle state, the safety priority strategy corresponding to the current vehicle state is determined from these preset strategies as the target priority strategy.
[0030] In this embodiment of the invention, the mapping strategy can characterize the mapping relationship between different content sources and different target display areas on the in-vehicle screen, matching the screen projection request with the seat area. For example, by default, the target content of the autonomous driving phone will be displayed in the left area of the screen, and the screen content of the passenger device will be displayed in the right area of the screen, realizing the logical binding of physical location and display area to avoid interference. The mapping strategy can not only be related to the content source as exemplified, but also to the scene mode set by the car owner. For example, the default mapping strategy can instruct the target content from the driver's seat to be mapped to the entire central control screen, while the mapping strategy in the commuting mode set by the car owner can instruct the target content from the driver's seat to be mapped to the head-up display. The in-vehicle system can also preset multiple mapping strategies, and the target mapping strategy corresponding to the content source of the target content can be determined from the preset multiple mapping strategies according to the content source and the car owner's settings. Then, according to the mapping relationship indicated by the target mapping strategy, the target display area is determined from at least one in-vehicle screen. The target display area can be a complete in-vehicle screen, or a single in-vehicle screen can be divided into multiple screen partitions, with different screen partitions corresponding to different content sources as target display areas. For example, in the case of an integrated vehicle center console screen, if the content originates from the driver's side, the target display area can be the split-screen area of the center console screen closer to the driver's side; if the content originates from the passenger's side, the target display area can be the split-screen area of the center console screen closer to the passenger's side.
[0031] Step 130: Determine the playback priority of the target content from the target priority strategy based on the content source and / or the content type.
[0032] In this embodiment of the invention, the target priority strategy can include not only playback priorities corresponding to different content sources, but also different playback priorities corresponding to different content types. Playback priority can represent the order of playback. For example, in step 120, the target content originating from the driver's seat is further divided according to content type. The playback priority of navigation-related target content from the driver's seat can be higher than the playback priority of audio-visual entertainment-related target content from the driver's seat. The audio-visual entertainment-related target content is played after the navigation-related target content has finished playing, to avoid affecting the driver's driving. Step 140: Allocate the target computing resources corresponding to the target content from the vehicle's computing resources according to the playback priority.
[0033] In this embodiment of the invention, playback priority can represent not only the order of playback but also different amounts of computing resources. Computational resources include the total amount of computing resources the vehicle can currently use for content playback, processing audio content and / or image content, such as at least one of the vehicle's current available processing frame rate, available bandwidth, and available resolution of the in-vehicle screen. Correspondingly, the target computing resource amount can include at least one of the frame rate, bandwidth, and resolution of the target display area required to project the target content onto the target display area. For example, in step 130, the playback priority of navigation-related target content from the driver's seat can be greater than the playback priority of audio-visual entertainment-related target content from the driver's seat; therefore, the bandwidth and / or rendering frame rate for processing navigation-related target content can be greater than the bandwidth and / or rendering frame rate for processing audio-visual entertainment-related target content. Furthermore, under the same playback priority, the corresponding target computing resource amount can be allocated according to the content type of the target content; for example, a higher resolution can be allocated to audio-visual entertainment-related target content, and a higher refresh rate can be allocated to navigation and document-related target content to ensure smooth playback. The vehicle infotainment system can dynamically adjust the amount of target computing resources and / or image quality parameters of each target display area based on available bandwidth and computing power, combined with the playback priority of each target content.
[0034] Step 150: Process the target content based on the target computing resource amount so that the image content included in the processed target content is projected onto the target display area.
[0035] In this embodiment of the invention, after determining the target computing resources required to project the target content in step 140, the target computing resources can be used to process the target content accordingly, so that the processed target content, including the image content, is projected onto the target display area. For example, an independent rendering layer is created in the graphics buffer for each projection request, and finally, multiple layers are overlaid and composited with the native interface (such as air conditioning control) on the vehicle screen, and output to the integrated central control screen, which facilitates the formation of a logical partition display effect on the integrated central control screen of the vehicle.
[0036] By collaboratively judging vehicle status, content source, and content type, the target display area of the target content is dynamically determined and the corresponding target computing resources are allocated. This enables the orderly scheduling and management of multiple concurrent projection requests, overcoming the display conflicts and resource competition problems that are easily caused by existing exclusive projection solutions in multi-user scenarios, and improving the interaction efficiency and system stability of in-vehicle multi-screen collaboration.
[0037] In this embodiment of the invention, step 120, determining the target priority strategy from the preset safety priority strategy based on the vehicle state, may include the following steps: if the vehicle state is in a driving state, the driving protection strategy in the safety priority strategy is taken as the target priority strategy, wherein the driving protection strategy consists of multiple different content attributes corresponding to different playback priorities; if the vehicle state is in a parked state, the parking entertainment strategy in the safety priority strategy is taken as the target priority strategy, wherein the parking entertainment strategy consists of multiple different content attributes corresponding to the same playback priority.
[0038] In this embodiment of the invention, in the driving protection strategy, if the content originates from the driver's seat and the content type is navigation, the playback priority is determined to be a first priority according to the driving protection strategy; if the content originates from the driver's seat and the content type is not navigation, the playback priority is determined to be a second priority according to the driving protection strategy; if the content originates from the passenger seat or rear seat, the playback priority is determined to be a third priority according to the driving protection strategy. The target computing resources allocated to the first priority are greater than those allocated to the second priority, and the target computing resources allocated to the second priority are greater than those allocated to the third priority. For example, navigation-type target content from the driver's seat can be assigned the highest first priority, allocating more stable bandwidth, higher rendering frame rates, and other target computing resources, and displaying it in an area easily glanced at by the driver (such as the left half of the central control screen) as the target display area. The driving protection strategy can also restrict or prohibit the activation of non-navigation content such as videos and games in the driver's side area to avoid driver distraction. During this restriction process, the playback priority of non-navigation content from the driver's side can be set as the second priority to reduce the allocation of computational resources to that content. Since the driving protection strategy primarily emphasizes that the vehicle is currently in motion and prioritizes driving safety, the playback priority of content from the passenger side and / or rear seats is set as the third priority to maximize vehicle safety.
[0039] In this embodiment of the invention, the parking entertainment strategy indicates that the vehicle is currently in a parked state. Multiple different content attributes can correspond to the same playback priority, removing the safety restrictions of the driving state, opening all display areas for entertainment or office use, and allowing the positions of each split-screen content to be freely swapped according to user instructions (such as dragging by the passenger).
[0040] In this embodiment of the invention, the target content further includes audio content. After processing the target content based on the target computing resource amount, the method further includes: if the playback priority is a first priority, the processed audio content is played through the vehicle's audio system; if the playback priority is a second or third priority, the processed audio content is played through the local audio system corresponding to the content source. For example, audio corresponding to navigation-related target content can be played through the vehicle's audio system, while audio for entertainment-related target content can be played through Bluetooth headphones or headrest speakers connected to the passenger-side screen, achieving audio privacy and ensuring driving safety to a certain extent.
[0041] In this embodiment of the invention, road conditions during vehicle operation are constantly changing, which can easily lead to changes in the vehicle's computing resources. For example, signal weakening may occur when the vehicle enters a tunnel, or the vehicle's gear shift may cause changes in vehicle status. To better cope with changes in vehicle status and / or computing resources, the method further includes: during the process of projecting the processed target content, including the image content, onto the target display area, an updated playback priority can be obtained based on changes in vehicle status and / or vehicle computing resources; the target computing resources corresponding to the target content and the target display area are adjusted according to the updated playback priority; and the target content is processed based on the adjusted target computing resources so that the processed target content, including the image content, is projected onto the adjusted target display area.
[0042] In this embodiment of the invention, before determining the target display area of the target content from at least one in-vehicle screen according to the content source and the preset target mapping strategy in step 130, the method further includes: obtaining the scene mode currently in which the vehicle is located; and determining the target mapping strategy from a variety of preset mapping strategies according to the scene mode currently in which the vehicle is located.
[0043] In this embodiment of the invention, the scene mode can be derived from a preset template or customized by the car owner. For example, when the vehicle system recognizes a specific user (such as the car owner), it not only automatically connects to the mobile terminal to obtain a screen projection request, but also loads the scene mode preset by the car owner. For example, the commuter mode instructs the driver to automatically navigate in full screen, while the passenger area displays a news summary in a small window. The family travel mode instructs the driver to navigate, while the passenger area plays children's entertainment content in full screen and automatically outputs audio to the rear entertainment system. The business reception mode instructs the driver area to display vehicle information concisely, while the passenger area prioritizes providing screen projection services for guests' devices and activates the anti-peeping mode. The confirmation of the scene mode can come from the user's selection or be determined intelligently by the vehicle; this embodiment of the invention does not impose specific limitations on this.
[0044] In this embodiment of the invention, the vehicle infotainment system can also be configured with augmented reality (AR) technology to integrate key target content with an AR-HUD or AR navigation system. For example, presenting navigation instructions from a mobile terminal (such as "turn right in 300 meters") in AR form on the HUD can free up the mobile terminal to display more complex maps or points of interest information.
[0045] In this embodiment of the invention, the vehicle system can also be configured for cross-device interaction processing. A secure local area network for screen projection can be established within the vehicle system, allowing limited interaction between authorized projection devices. For example, the front passenger can drag and drop images or documents from the corresponding target display area to the navigation content currently displayed on the driver's target display area. This allows the navigation software, as the source application, to set the information projected by the front passenger as the destination or waypoint, enabling file drag-and-drop sharing. Similarly, rear passengers can push audio-visual entertainment content from their mobile devices to the front passenger's target display area for playback using an "up" gesture. When the vehicle screen is an integrated central control screen, upon recognizing that the driver and front passenger are projecting the same document content onto the central control screen, the central area of the central control screen can be designated as the target display area, providing convenience for both the driver and front passenger to jointly edit the document content. For example, on the vehicle's central control screen, the target display area near the driver's seat plays navigation-related content originating from the driver, while the target display area near the passenger's seat plays video conferencing-related content originating from the passenger. When the passenger receives an address information while participating in a video conference through the camera configured in the vehicle's infotainment system, the system can recognize the address and ask whether to synchronize it to the AR navigation route played on the target display area corresponding to the driver's seat.
[0046] In this embodiment of the invention, a layered security architecture can also be constructed to isolate permissions for applications from different sources and locations. For example, to implement driving domain isolation, after processing the target content based on the target computing resources to project the processed image content onto the target display area, the method further includes: if the target display area is located on the vehicle's central control screen, prohibiting responses to operations on the source application of the target content and / or the target display area. While driving, if the target display area corresponding to the driver's seat is playing target content, to avoid affecting driving, operations on the source application of the target content and touch commands on the target display area are strictly filtered, only responding to voice or large button operations, while touch operations on the passenger side area are unrestricted.
[0047] In this embodiment of the invention, the processing of the target content based on the target computing resource volume in step 140 may include: if the source of the target content is the driver, then the target content is processed in a preset driver processing channel using the target computing resource volume; if the source of the target content is not the driver, then a temporary processing channel for the target content is constructed, and the target content is processed in the temporary processing channel using the target computing resource volume. For example, during business receptions, content projected from devices in the front passenger seat and / or rear seats cannot be accessed or stored through the vehicle system for the driver's personal data in the driver processing channel, thus achieving data isolation.
[0048] In this embodiment of the invention, a target priority strategy is determined based on driving status and safety, and a target mapping strategy is determined based on location awareness. The allocation of computing resources is determined according to content type and target priority strategy. This multi-dimensional coordination and management of screen projection requests advances from single-task management under exclusive screen projection to multi-task screen projection request management, enabling parallel display across multiple devices and meeting the diverse information consumption needs of modern vehicles. Through context awareness and intelligent scheduling, strategies can be dynamically adjusted based on safety, user, and scenario needs, achieving optimal resource utilization and personalized experience. Furthermore, through expanded cross-device interaction capabilities, multiple screens and devices within the vehicle are connected into an organic ecosystem, greatly improving collaborative work efficiency and entertainment experience. Simultaneously, location mapping, audio management, and layered security strategies ensure driving safety and user data privacy, strengthening security and privacy.
[0049] Figure 2 The structure of a projection device for an in-vehicle screen according to an embodiment of the present invention is shown. For example... Figure 2 As shown, an embodiment of the present invention provides a screen projection device 200 for use on a vehicle-mounted screen, comprising: The acquisition module 210 is used to acquire the current vehicle status, the target content indicated by the screen projection request, and the content attributes of the target content in response to the screen projection request. The content attributes include the content source and content type of the target content. The determining module 220 is configured to determine a target priority strategy from a preset safety priority strategy based on the vehicle status, and determine the target display area of the target content from at least one in-vehicle screen based on the content source and a preset target mapping strategy; and determine the playback priority of the target content from the target priority strategy based on the content source and / or the content type. The allocation module 230 is used to allocate the target computing resources corresponding to the target content from the vehicle's computing resources according to the playback priority; The processing module 240 is used to process the target content based on the target computing resource amount, so that the image content included in the processed target content is projected onto the target display area.
[0050] It should be noted that the embodiments of the projection device applied to the vehicle screen in this specification and the embodiments of the projection method applied to the vehicle screen in this specification are based on the same inventive concept. Therefore, the specific implementation of this embodiment can be referred to the corresponding embodiments of the projection method applied to the vehicle screen above, and the repeated parts will not be described again.
[0051] Figure 3 A structural block diagram of a vehicle according to one embodiment of this application is shown. Figure 3 As shown, the vehicle provided in this embodiment includes a processor 310 and a memory 320, wherein the memory is used to store instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the above method.
[0052] In an exemplary embodiment, the electronic control unit on the vehicle may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.
[0053] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory including instructions that can be executed by a processor of the device to perform the described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc. When the instructions in this non-transitory computer-readable storage medium are executed by the vehicle's processor, the vehicle is enabled to perform... Figure 1 The method shown.
[0054] This application also provides a computer program product, including a computer program, which, when executed by a processor, performs... Figure 1 The method shown.
[0055] The above description does not provide detailed technical specifications regarding the structure of each layer. However, those skilled in the art should understand that layers and regions of desired shapes can be formed using various technical means. Furthermore, to form the same structure, those skilled in the art can also design methods that are not entirely identical to those described above. Additionally, although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be advantageously combined.
[0056] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.
[0057] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A screen projection method for use on vehicle-mounted screens, characterized in that, The method includes: In response to a screen mirroring request, the vehicle's current vehicle status, the target content indicated by the screen mirroring request, and the content attributes of the target content are obtained, including the content source and content type of the target content. Based on the vehicle status, a target priority strategy is determined from a preset safety priority strategy, and based on the content source and a preset target mapping strategy, the target display area of the target content is determined from at least one in-vehicle screen. The playback priority of the target content is determined from the target priority strategy based on the content source and / or the content type. Based on the playback priority, the target computing resources corresponding to the target content are allocated from the vehicle's computing resources. The target content is processed based on the target computing resource amount, so that the image content included in the processed target content is projected onto the target display area.
2. The method according to claim 1, characterized in that, The vehicle status can be either driving or parked. The step of determining the target priority strategy from the preset safety priority strategy based on the vehicle status includes: If the vehicle is in a driving state, the driving protection strategy in the safety priority strategy will be used as the target priority strategy. The driving protection strategy consists of multiple different content attributes corresponding to different playback priorities. If the vehicle is in a parked state, the parking entertainment strategy in the safety priority strategy is used as the target priority strategy. The parking entertainment strategy consists of multiple different content attributes corresponding to the same playback priority.
3. The method according to claim 2, characterized in that, If the target priority strategy is the driving protection strategy, determining the playback priority of the target content from the target priority strategy based on the content source and / or the content type includes: If the source of the content is the driver and the content type is navigation, the playback priority is determined to be the first priority according to the driving protection strategy. If the source of the content is the primary driver and the content type is not the navigation type, the playback priority is determined to be the second priority according to the driving protection strategy; If the content originates from the passenger seat or the rear seat, the playback priority is determined to be the third priority according to the driving protection strategy. The target computing resources allocated to the first priority are greater than the target computing resources allocated to the second priority, and the target computing resources allocated to the second priority are greater than the target computing resources allocated to the third priority.
4. The method according to claim 1, characterized in that, The target computing resources include at least one of the frame rate, bandwidth, and resolution required to project the target content onto the target display area.
5. The method according to claim 3, characterized in that, The target content also includes audio content; After processing the target content based on the target computing resource quantity, the method further includes: If the playback priority is the first priority, the processed audio content will be played through the vehicle's audio system. If the playback priority is the second or third priority, the processed audio content is played through the local speaker corresponding to the content source.
6. The method according to claim 1, characterized in that, The method further includes: During the process of projecting the processed target content, including the image content, onto the target display area, the updated playback priority of the target content is obtained; Adjust the target computing resource amount and the target display area corresponding to the target content according to the updated playback priority; The target content is processed based on the adjusted target computing resources so that the image content included in the processed target content is projected onto the adjusted target display area.
7. The method according to claim 1, characterized in that, Before determining the target display area of the target content from at least one in-vehicle screen based on the content source and a preset target mapping strategy, the method further includes: Obtain the current scene mode of the vehicle; Based on the current scene mode of the vehicle, the target mapping strategy is determined from a variety of preset mapping strategies.
8. The method according to claim 1, characterized in that, After processing the target content based on the target computing resources to project the processed image content onto the target display area, the method further includes: If the target display area is located on the vehicle's central control screen, operations on the source application of the target content and / or the target display area are prohibited.
9. The method according to claim 1, characterized in that, The processing of the target content based on the target computing resource quantity includes: If the source of the target content is the main driver, then the target content is processed in the preset main driver processing channel using the target computing resources. If the source of the target content is not the primary driver, a temporary processing channel for the target content is constructed, and the target content is processed within the temporary processing channel using the target computing resources.
10. A projection device for use on vehicle-mounted screens, characterized in that, The device includes: The acquisition module is used to respond to the screen projection request by acquiring the current vehicle status, the target content indicated by the screen projection request, and the content attributes of the target content, wherein the content attributes include the content source and content type of the target content; The determination module is used to determine a target priority strategy from a preset safety priority strategy based on the vehicle status, and to determine the target display area of the target content from at least one in-vehicle screen based on the content source and a preset target mapping strategy; and to determine the playback priority of the target content from the target priority strategy based on the content source and / or the content type. The allocation module is used to allocate the target computing resources corresponding to the target content from the vehicle's computing resources according to the playback priority; The processing module is used to process the target content based on the target computing resource amount, so that the image content included in the processed target content is projected onto the target display area.