Vehicle-mounted welcome projection control method, system and equipment and vehicle

Abstract

The invention provides a vehicle-mounted welcome projection control method, system and device and a vehicle, and belongs to the technical field of automotive electronics, and the method comprises the steps: detecting the approaching of a user, and completing the identity verification; after the identity verification is passed, calling welcome projection content matched with the user identity passing the verification; sending the image data of the greeting projection content to a target projection component through a high-speed serial data transmission link; and receiving and analyzing the image data, and executing welcome projection. According to the scheme, by adopting a high-speed serial data transmission link (such as a SerDes technology), stable and high-speed transmission of full-high-definition and even ultra-high-definition resolution image data in a vehicle-mounted complex electromagnetic environment is realized, and the definition, the color rendition degree and the fluency of a projection picture are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of automotive electronics technology, and in particular to a method, system, device, and vehicle for controlling in-vehicle welcome projection. Background Technology

[0002] Existing in-vehicle welcome projection systems mostly employ simple trigger-based projection, lacking user identification and personalized content matching capabilities. This results in monotonous projection content that fails to meet the individualized needs of diverse users. In terms of data transmission, traditional systems often use parallel transmission or low-speed serial communication, which struggles to support real-time transmission of high-resolution image data, easily leading to latency or image quality loss. Furthermore, existing systems are insufficiently adaptable to changes in ambient light and vehicle status, unable to dynamically adjust projection parameters, thus affecting projection quality. System reliability and fault tolerance also need improvement; for example, there is a lack of effective backup or compensation mechanisms in the event of transmission link or projection component failures. Therefore, there is an urgent need for a welcome projection solution that integrates identity verification, high-speed data transmission, and dynamic adaptation. Summary of the Invention

[0003] The purpose of this invention is to provide a vehicle-mounted welcome projection control method and system. This system triggers personalized welcome projection content through identity verification, employs a high-speed serial data transmission architecture to achieve stable signal transmission and system integration optimization, and possesses adaptive ambient light adjustment and multi-projection component collaborative control capabilities. This addresses the technical problems of existing vehicle-mounted welcome systems, such as single response mode, complex system wiring, poor environmental adaptability, and insufficient functional scalability. The embodiments of this invention provide a vehicle-mounted welcome projection control method, system, device, and vehicle. The technical solution is as follows: Firstly, a method for controlling in-vehicle welcome projection is provided, including the following steps: Detect the user's proximity and complete identity verification; After successful authentication, the welcome projection content that matches the authenticated user identity is invoked; The image data of the welcoming projection content is sent to the target projection component via a high-speed serial data transmission link; the image data is received and parsed, and the welcoming projection is executed.

[0004] Preferably, it also includes: Establish a low-power connection via Bluetooth to initially wake up the system; The ultra-wideband positioning module is activated to perform high-precision positioning and calculate the relative position of the user and the vehicle. The key controller collects the user's digital key signal to obtain the user's identity information; The user identity information is sent to the intelligent cockpit domain controller for verification. Generate projection brightness adjustment instructions based on ambient light intensity; The brightness adjustment command is sent to the target projection component through the high-speed serial data transmission link to dynamically adjust the projection brightness.

[0005] Preferably, the high-speed serial data transmission link is a serializer-deserializer link, and the step of sending the image data of the welcoming projection content to the target projection component through the high-speed serial data transmission link includes: In the intelligent cockpit domain controller, parallel image signals are converted into high-speed serial signals via a serializer; The high-speed serial signal is transmitted to the projection component via a coaxial cable; In the projection component, the high-speed serial signal is restored to parallel image data by a deserializer.

[0006] Preferably, while transmitting the high-speed serial signal, power is supplied to the projection component through the same coaxial cable to achieve cable power supply.

[0007] Preferably, the step of retrieving the welcome projection content that matches the verified user identity includes: Retrieve personalized projection themes associated with the user's identity from local storage or the cloud; The projection subject includes still images, dynamic videos, or animated content.

[0008] Preferably, the method further includes a dynamic scene adaptation step: Real-time monitoring of vehicle status and environmental parameters; Adjust the projection content of the corresponding side projection component according to the door opening / closing status; Automatically adjusts projection brightness based on ambient light intensity; Based on navigation information, trigger corresponding projection content in specific scenarios.

[0009] Preferably, the method further includes an exception handling step: When a serializer / deserializer link failure is detected, the system automatically switches to the backup transmission link. When a projection component malfunctions, the operating status of other projection components is adjusted to compensate for the projection coverage.

[0010] Preferably, the authentication is achieved based on at least one of a mobile digital key, a traditional car key, or biometric identification.

[0011] Preferably, the image data has a resolution of full HD or ultra-HD and is transmitted using 8-bit / 10-bit or 128-bit / 130-bit encoding.

[0012] Preferably, the method further includes a post-projection state monitoring and feedback step: The projection effect is continuously monitored using environmental sensors; The projection parameters, including brightness, contrast, and projection angle, are dynamically adjusted based on the monitoring results. The system's operating status is uploaded to the cloud server via the vehicle-mounted communication terminal.

[0013] Secondly, the present invention provides a vehicle-mounted welcome projection control system, characterized in that it is used to execute the above-described vehicle-mounted welcome projection control method, the system comprising: The intelligent cockpit domain controller is configured to generate image data for the welcome projection content and control the system's workflow. The sensing module is configured to detect when a user approaches and complete the authentication process. At least one projection component is configured to receive image data and perform projection; The intelligent cockpit domain controller is connected to the projection component via a high-speed serial data transmission link; The intelligent cockpit domain controller verifies the user's identity through the perception module, then calls up the welcome projection content that matches the user's identity, and sends the image data to the target projection component through the high-speed serial data transmission link.

[0014] Thirdly, the present invention provides a vehicle welcome projection device, comprising: a memory storing a computer program; The processor, configured to execute the computer program, implements the steps of the above-described vehicle-mounted welcome projection control method.

[0015] Fourthly, the present invention provides a vehicle that integrates an in-vehicle welcome projection control system or is equipped with a vehicle welcome projection device. The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: 1. High-definition image quality and stable transmission: By adopting a high-speed serial data transmission link (such as SerDes technology), stable and high-speed transmission of full HD and even ultra-HD resolution image data is achieved in the complex electromagnetic environment of the vehicle, which significantly improves the clarity, color reproduction and smoothness of the projected image.

[0016] 2. High level of intelligence and personalization: By integrating technologies such as ultra-wideband positioning, digital keys, and environmental perception, it achieves accurate user identification and positioning, can call up personalized projection content bound to the user's identity, and provides an intelligent welcome experience that responds as soon as you get close, greatly enhancing the user's sense of exclusivity and participation.

[0017] 3. Dynamic scene adaptation: The system can monitor vehicle status (such as door opening and closing) and environmental parameters (such as light intensity) in real time, and dynamically adjust parameters such as projection content, brightness, and projection angle accordingly to ensure the best projection effect and user experience in different scenarios.

[0018] 4. High system integration and cost optimization: Utilizing the single-cable transmission characteristics of high-speed serial links, signal and power supply transmission are achieved via a single cable, significantly simplifying system wiring and reducing hardware complexity and overall cost. Simultaneously, unified control is achieved with the intelligent cockpit domain controller at its core, avoiding redundancy caused by multiple independent controllers.

[0019] 5. Excellent Reliability and Scalability: The system is designed with communication link redundancy and fault diagnosis mechanisms to ensure continuous operation even in the event of component or link failures. The modular design allows for flexible configuration of the number of projection components according to vehicle model requirements, providing excellent scalability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a flowchart of the vehicle-mounted welcome projection control method provided in an embodiment of the present invention; Figure 2 This is the application architecture of the intelligent high-definition in-vehicle welcome projection atmosphere system provided in the embodiments of the present invention; Figure 3 This is the hardware frame for the intelligent high-definition vehicle-mounted welcome projection atmosphere system provided in this embodiment of the invention; Figure 4 This is a schematic diagram of the vehicle-mounted welcome projection control system provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the vehicle-mounted welcome projection control device provided in an embodiment of the present invention. Detailed Implementation

[0022] The technical solution of the present invention will now be described with reference to the accompanying drawings.

[0023] In embodiments of the present invention, words such as "exemplarily," "for example," etc., are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" in the present invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present the concept in a concrete manner. Furthermore, in embodiments of the present invention, the meaning expressed by "and / or" can be both, or either one.

[0024] In the embodiments of this invention, the terms "image" and "picture" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction between them, they convey the same meaning. Similarly, the terms "of," "corresponding (relevant)," and "corresponding" may sometimes be used interchangeably. It should be noted that, without emphasizing the distinction between them, they convey the same meaning.

[0025] In this embodiment of the invention, sometimes a subscript such as W1 may be mistakenly written as a non-subscript form such as W1. When the difference is not emphasized, the meaning they express is the same.

[0026] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] This invention provides a collaborative control method for a vehicle occupant protection system. This method can be implemented by a collaborative control device for the vehicle occupant protection system, which can be a terminal or a server. Figure 1 The vehicle-mounted welcome projection control method shown includes the following steps: S110, Detect the user's proximity and complete identity verification; S120. After successful authentication, call up the welcome projection content that matches the authenticated user identity; S130: Send the image data of the welcoming projection content to the target projection component through a high-speed serial data transmission link; S140: Receive and parse the image data, and perform the welcoming projection.

[0028] This embodiment details the complete implementation process of the vehicle-mounted welcome projection control method: First, the system detects the approaching user using ultra-wideband positioning (UWB) and Bluetooth Low Energy (BLE) technologies and completes identity verification. When the user enters the detection range carrying a smart terminal or car key, the system first establishes a Bluetooth BLE connection for initial wake-up, and then initiates UWB positioning for precise ranging and location tracking. The identity verification process includes user identification and authorization verification, ensuring that only authorized users can trigger the welcome projection.

[0029] After successful authentication, the system retrieves the corresponding welcome projection content from the preset user profile. This content can include personalized welcome text, customized animation effects, or user-preferred projection patterns. Users can pre-set their preferred projection themes via a mobile app; the system supports projection source files in various formats, including images and videos.

[0030] Next, the image data of the welcome projection content is sent to the target projection component via a high-speed serial data transmission link. The transmission process employs an efficient encoding method to ensure data integrity, while also supporting real-time transmission of control commands to achieve remote control of the projection component.

[0031] At the projection component end, image data is received and parsed, driving the projection optics to perform the welcome projection. During the projection process, the system monitors the projection effect in real time to ensure the accurate presentation of the projected content.

[0032] This embodiment implements a complete intelligent welcome projection process, automating the entire process from user detection to projection execution, greatly enhancing the user experience. An authentication mechanism ensures system security, and personalized content settings meet users' customization needs.

[0033] In a preferred embodiment, it further includes: A low-power connection is established via Bluetooth to initially wake up the system; the ultra-wideband positioning module is activated for high-precision positioning to calculate the relative position of the user and the vehicle; the key controller collects the user's digital key signal to obtain the user's identity information; the user's identity information is sent to the intelligent cockpit domain controller for verification; based on the ambient light intensity, a projection brightness adjustment command is generated; the brightness adjustment command is sent to the target projection component through the high-speed serial data transmission link to dynamically adjust the projection brightness.

[0034] This embodiment details the specific implementation method of the authentication process: The authentication module employs a collaborative working mode of an ultra-wideband positioning chip and a Bluetooth Low Energy chip. The ultra-wideband chip uses the DW1000 series, achieving a positioning accuracy of ±5cm, and can accurately determine the relative position and movement trajectory of the user and the vehicle. The Bluetooth Low Energy chip uses a chipset supporting Bluetooth 5.0, enabling low-power continuous connectivity.

[0035] When a user approaches the vehicle, Bluetooth Low Energy (BLE) first establishes a connection for initial authentication. Once authentication is successful, UWB positioning is activated, calculating the user's precise location using multiple UWB anchor points. The system then determines the user's intent based on their location information, and prepares to trigger the welcome process when it detects the user approaching the vehicle.

[0036] The authentication information includes user ID, permission level, and personalized settings, which are transmitted to the main controller via the CAN bus. After verifying the user's identity, the main controller matches the corresponding personalized welcome settings, including projection theme, volume settings, and lighting effects.

[0037] The dual-mode authentication mechanism ensures both accurate identification and power efficiency. Ultra-wideband technology provides centimeter-level positioning accuracy, ensuring precise system triggering; Bluetooth Low Energy technology enables continuous connectivity, guaranteeing timely system response. In a preferred embodiment, the high-speed serial data transmission link is a serializer-deserializer link, and the step of sending the image data of the welcoming projection content to the target projection component through the high-speed serial data transmission link includes: In the intelligent cockpit domain controller, parallel image signals are converted into high-speed serial signals via a serializer; the high-speed serial signals are transmitted to the projection component via a coaxial cable; and in the projection component, the high-speed serial signals are restored to parallel image data via a deserializer.

[0038] This embodiment details the specific implementation method for high-speed serial data transmission: The high-speed data communication module uses the SerDes chipset to build the transmission link. The transmitter serializer converts parallel image signals such as DP / DSI / HDMI into high-speed serial signals, supporting data transmission rates up to 10Gbps. It employs 8b / 10b or 128b / 130b encoding methods to improve data transmission reliability.

[0039] The transmission link uses coaxial cable, supporting a transmission distance of up to 15 meters, meeting the deployment requirements of multi-area projection components on the vehicle body. The coaxial cable simultaneously undertakes signal transmission and power supply functions, achieving hybrid transmission of signals and power through PoC technology.

[0040] At the projection component end, the deserializer restores the high-speed serial signal to parallel image data, which is then sent to the projection electronics via the MIPI / OLDI / eDP interface. The projection electronics include an image processor, memory, and driver circuitry, supporting projection requirements for different resolutions such as 1080P and 4K.

[0041] The high-speed serial transmission architecture significantly improves data transmission stability and anti-interference capabilities, while the single-cable design simplifies system wiring and reduces installation complexity and cost. Long-distance transmission capabilities support flexible component deployment, meeting the installation needs of different vehicle models.

[0042] In a preferred embodiment, power is supplied to the projection component via the same coaxial cable while transmitting high-speed serial signals, thus achieving cable power supply.

[0043] This embodiment details the specific implementation method for synchronous transmission of signals and electrical energy: The PoC (Power over Cell) system transmits high-speed serial signals and DC power simultaneously via coaxial cable. The system employs a dedicated PoC filter circuit to isolate the high-speed signal from the power supply circuit, preventing mutual interference.

[0044] When the projection component's power supply current does not exceed the power supply capacity of the coaxial connector and cable, the main controller directly powers the projection component via the coaxial cable, simplifying the interface design. When the projection component requires a larger operating current, the system supports independent power cable supply to ensure stable system operation.

[0045] The power supply management system monitors the power supply status in real time, including voltage, current, and power parameters. When an anomaly is detected, the system automatically adjusts the power supply strategy or activates a protection mechanism to prevent equipment damage.

[0046] PoC technology significantly simplifies system cabling, reduces the use of connectors and cables, and lowers system cost and weight. Intelligent power management ensures stable system operation, improving system reliability and security. In a preferred embodiment, the step of invoking the welcome projection content that matches the verified user identity includes: Retrieve personalized projection themes associated with the user's identity from local storage or the cloud; The projection subject includes still images, dynamic videos, or animated content.

[0047] In a preferred embodiment, the method further includes a dynamic scene adaptation step: Real-time monitoring of vehicle status and environmental parameters; Adjust the projection content of the corresponding side projection component according to the door opening / closing status; Automatically adjusts projection brightness based on ambient light intensity; Based on navigation information, trigger corresponding projection content in specific scenarios.

[0048] This embodiment details the specific implementation method of environmental adaptive adjustment: The environmental sensing module includes a high-precision light sensor that monitors ambient light intensity in real time. Sensor data is transmitted to the main controller via I2C or SPI interface, with a sampling frequency of up to 100Hz, ensuring rapid response to environmental changes.

[0049] The main controller dynamically adjusts projection parameters based on ambient light intensity. In bright light, the system automatically increases the brightness of the projection light source, up to a maximum of 1000 lumens, to ensure the visibility of the projected content. In low light, the brightness is appropriately reduced to avoid excessive glare and save energy.

[0050] The system also supports adjusting the projected color according to the ambient color temperature, ensuring color accuracy of the projected content under different lighting conditions. Through color management algorithms, it achieves 99% sRGB color reproduction, providing a realistic and natural visual effect.

[0051] The environmental adaptive function ensures optimal projection performance under various lighting conditions, enhancing system usability and user experience. Intelligent brightness adjustment guarantees both visual quality and efficient energy use. This embodiment details the specific implementation method of collaborative control of multiple projection components: The system supports distributed deployment of multiple projection components, which can be placed in any available area around the vehicle, including under the doors and on the roof. The number of projection components is determined by the vehicle size and body shape, and flexible expansion is supported.

[0052] The main controller coordinates the operation of multiple projection components via a high-speed serial data bus. The system supports various collaborative modes, including synchronous projection, alternating projection, and complementary projection, to achieve rich welcoming effects.

[0053] The collaborative control algorithm dynamically adjusts the projection mode based on vehicle status information. For example, when a door is detected to be open, the corresponding projection component automatically adjusts the projection pattern to display dynamic effects such as "Welcome aboard." The system also supports adjusting the projection area and content based on the user's location information.

[0054] Multi-component collaborative control enables richer and more dynamic welcome effects, enhancing the system's technological feel and user experience. Distributed deployment supports flexible installation and configuration to meet the needs of different vehicle models and application scenarios.

[0055] In a preferred embodiment, the method further includes an exception handling step: When a serializer / deserializer link failure is detected, the system automatically switches to the backup transmission link. When a projection component malfunctions, the operating status of other projection components is adjusted to compensate for the projection coverage.

[0056] This embodiment details the specific implementation of the system exception handling mechanism: The system is equipped with a comprehensive anomaly detection and handling mechanism. When a serializer / deserializer link failure is detected, the system automatically activates a backup transmission link. The fault detection module monitors the link status by periodically sending heartbeat signals and checksum data packets. If three consecutive signal losses or checksum errors are detected, the system determines that a link failure has occurred.

[0057] The backup transmission link employs an independent physical channel and signal processing chip to ensure immediate takeover of data transmission in the event of a primary link failure. The switchover process is completed in milliseconds, making service interruption virtually imperceptible to users. The system simultaneously records fault information, including fault time, type, and recovery status, for subsequent analysis.

[0058] When a projection component malfunctions, the system identifies the faulty component through a self-test program and immediately activates a compensation mechanism. Adjacent, functioning projection components automatically adjust their projection angle and range, increasing the overlapping projection area to compensate for the coverage gap caused by the faulty component. For example, if the left projection component malfunctions, the projection components on both the front and rear sides will extend their projection range to the left to ensure the integrity of the projection area.

[0059] This embodiment achieves high availability and fault tolerance of the system, ensuring that basic functions are maintained even when some components fail. Automatic failover and compensation mechanisms significantly improve system reliability, reduce the need for maintenance intervention, and provide users with a consistently stable and welcoming experience.

[0060] In a preferred embodiment, the authentication is achieved based on at least one of a mobile digital key, a traditional car key, or biometric identification.

[0061] This embodiment details the specific implementation method of multi-mode authentication: The system supports the use of three authentication methods individually or in combination. Mobile digital key authentication is based on Bluetooth and UWB technologies. The digital key application installed on the user's mobile phone establishes a secure connection with the vehicle through encrypted communication. The authentication process includes device authentication, user identity verification, and permission checks.

[0062] Traditional car key verification uses improved RFID technology, with a built-in security chip in the key that performs two-way authentication with the vehicle's reader. The system supports rolling code encryption to prevent signal replay attacks and ensure communication security.

[0063] Biometric recognition supports both fingerprint and facial recognition. The fingerprint recognition module is integrated into the door handle and uses a capacitive sensor to collect fingerprint features and compare them with a pre-stored template. Facial recognition is achieved through an onboard camera, using near-infrared liveness detection technology to prevent photo or video spoofing.

[0064] The system also supports multi-factor authentication, such as the combination of digital keys and biometric recognition, providing a higher level of security. All authentication data is stored in encrypted form, and personal biometric information is deleted immediately after verification to ensure user privacy and security.

[0065] The multi-mode authentication mechanism balances security and convenience, catering to diverse user preferences. Advanced encryption technology and liveness detection effectively prevent unauthorized access, while flexible combination authentication methods provide solutions for scenarios with high security requirements.

[0066] In a preferred embodiment, the image data has a resolution of full HD or ultra-HD and is transmitted using 8-bit / 10-bit or 128-bit / 130-bit encoding.

[0067] This embodiment details the specific implementation method for high-definition image data transmission: The system supports both Full HD and Ultra HD resolution modes. Full HD mode uses a 1920×1080 resolution at 60fps; Ultra HD mode supports a 3840×2160 resolution at 30fps. Image data is generated by the SoC's GPU core, using the YUV420 color space, optimizing bandwidth usage while ensuring image quality.

[0068] Data transmission employs an advanced encoding scheme. The basic mode uses 8-bit / 10-bit encoding, providing 20% ​​redundancy check to ensure signal integrity. The high-performance mode uses 128-bit / 130-bit encoding, with a check overhead of only 1.56%, significantly improving the effective data transmission rate.

[0069] The encoding process is completed in the serializer chip, including data scrambling, clock embedding, and error correction coding. The deserializer at the receiving end performs the reverse process, extracting the synchronization clock through the clock data recovery circuit and using forward error correction technology to correct transmission errors.

[0070] The system also supports adaptive coding strategies, dynamically adjusting the coding scheme based on channel quality. When a signal quality degradation is detected, it automatically switches to a coding mode with higher redundancy to ensure reliable data transmission.

[0071] Advanced high-definition transmission solutions optimize bandwidth utilization while ensuring image quality, and the flexible selection of multiple encoding methods balances transmission efficiency and reliability requirements. Adaptive encoding strategies further enhance the system's performance in different environments.

[0072] In a preferred embodiment, the method further includes a post-projection state monitoring and feedback step: The projection effect is continuously monitored using environmental sensors; The projection parameters, including brightness, contrast, and projection angle, are dynamically adjusted based on the monitoring results. The system's operating status is uploaded to the cloud server via the vehicle-mounted communication terminal.

[0073] This embodiment details the specific implementation method for post-projection status monitoring and feedback: The system deploys multiple sets of environmental sensors to continuously monitor the projection effect, including a high dynamic range image sensor, an ambient light sensor, and a color sensor. The image sensor captures the projection area at a rate of 30fps, and machine vision algorithms are used to analyze the projection brightness uniformity, focus sharpness, and color accuracy.

[0074] Monitoring data is transmitted to the processing unit in real time, and the system dynamically adjusts projection parameters based on the analysis results. Brightness adjustment employs closed-loop control, automatically optimizing based on changes in ambient light and the characteristics of the projection surface. Contrast adjustment is based on image histogram analysis to ensure detail reproduction. Fine-tuning of the projection angle is achieved through a motorized pan-tilt unit, compensating for the effects caused by the vehicle's parking posture.

[0075] All operational data, including equipment status, environmental parameters, fault records, and performance metrics, is uploaded to a cloud server via the in-vehicle T-Box. The cloud platform performs big data analysis, providing performance trend predictions, preventative maintenance recommendations, and remote diagnostic support. Users can also view system operating status and historical records via a mobile app.

[0076] Beneficial effects: The closed-loop monitoring and feedback mechanism ensures continuous optimization of the projection effect, and intelligent parameter adjustment adapts to complex usage environments. Cloud data services provide strong support for system maintenance and function upgrades, realizing an upgrade from single function to intelligent service.

[0077] Figure 4 This is a block diagram illustrating an in-vehicle welcome projection control system according to an exemplary embodiment, the device being used in an in-vehicle welcome projection control method. (Refer to...) Figure 4 The device includes a smart cockpit domain controller 310, a sensing module 320, at least one projection component 330, and a high-speed serial data transmission link 340. Wherein: The intelligent cockpit domain controller 310 is configured to generate image data for the welcome projection content and control the system workflow. The sensing module 320 is configured to detect when a user approaches and complete the authentication process. At least one projection component 330 is configured to receive image data and perform projection; The intelligent cockpit domain controller and the projection component are connected via a high-speed serial data transmission link 340; wherein, after verifying the user's identity through the perception module, the intelligent cockpit domain controller calls up the welcome projection content that matches the user's identity, and sends the image data to the target projection component through the high-speed serial data transmission link.

[0078] The system adopts a distributed architecture design, with the intelligent cockpit domain controller as the core processing unit. This domain controller integrates a high-performance SoC chip, using an advanced 16nm process technology, and has a built-in multi-core CPU and dedicated GPU processing unit, with a computing power of over 10 TOPS, capable of rendering 4K resolution welcome projection content in real time.

[0079] The perception module employs multi-sensor fusion technology, including a UWB positioning unit, a BLE communication unit, and a biometric recognition unit. The UWB positioning unit uses a DW3000 series chip, achieving a positioning accuracy of ±10cm, and uses four anchor points distributed around the vehicle body for precise positioning. The BLE unit supports Bluetooth 5.2 protocol, enabling low-power continuous connectivity. The biometric recognition unit is integrated into the door handles, supporting both fingerprint and vein recognition.

[0080] The projection components adopt a modular design, with each component containing a deserializer chip, an image processing unit, and a DLP projection optics system. The deserializer supports a 10Gbps transmission rate, the image processing unit is equipped with a dedicated DSP chip, and the projection optics system uses a 0.45-inch DMD chip, supporting a native 1080P resolution and a brightness of up to 800 lumens.

[0081] The high-speed serial data transmission link uses coaxial cable as the medium and supports a maximum transmission distance of 20 meters. The link employs SerDes technology, with the serializer integrated within the domain controller and the deserializer integrated into the projection component. The system supports PoC power supply, transmitting both signals and power simultaneously via coaxial cable, with a maximum power supply of 15W.

[0082] This system implements a highly integrated intelligent welcome projection function, providing excellent scalability and maintainability through a distributed architecture and modular design. High-performance hardware configuration ensures rapid system response and superior projection effects, multi-mode sensing technology provides a safe and convenient user experience, and high-speed transmission links guarantee stable and reliable system operation.

[0083] Figure 5 This is a schematic diagram of the vehicle welcome projection device provided in an embodiment of the present invention, as shown below. Figure 5 As shown, the vehicle welcome projection device may include the above-mentioned Figure 5 The illustrated vehicle occupant protection system's collaborative control device. Optionally, the vehicle welcome projection device 410 may include a first processor 2001.

[0084] Optionally, the vehicle welcome projection device 410 may also include a memory 2002 and a transceiver 2003.

[0085] The first processor 2001, memory 2002, and transceiver 2003 can be connected via a communication bus.

[0086] The following is combined Figure 5 A detailed description of each component of the collaborative control device 410 of the vehicle occupant protection system is provided below: The first processor 2001 is the control center of the SSS device 410. It can be a single processor or a collective term for multiple processing elements. For example, the first processor 2001 can be one or more central processing units (CPUs), application-specific integrated circuits (ASICs), or one or more integrated circuits configured to implement embodiments of the present invention, such as one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs).

[0087] Optionally, the first processor 2001 can execute various functions of the cooperative control device 410 of the vehicle occupant protection system by running or executing software programs stored in the memory 2002 and calling data stored in the memory 2002.

[0088] In a specific implementation, as one example, the first processor 2001 may include one or more CPUs, for example... Figure 5 CPU0 and CPU1 are shown in the diagram.

[0089] In a specific implementation, as one example, the cooperative control device 410 of the vehicle occupant protection system may also include multiple processors, such as... Figure 5 The first processor 2001 and the second processor 2004 are shown in the diagram. Each of these processors can be a single-core processor or a multi-core processor. Here, a processor can refer to one or more devices, circuits, and / or processing cores used to process data (such as computer program instructions).

[0090] The memory 2002 is used to store the software program that executes the present invention, and is controlled by the first processor 2001 to execute it. The specific implementation method can be referred to the above method embodiment, and will not be repeated here.

[0091] Optionally, the memory 2002 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory 2002 may be integrated with the first processor 2001 or exist independently, including the interface circuit of the vehicle welcome projection device (…). Figure 3 (Not shown in the image) is coupled to the first processor 2001, and this embodiment of the invention does not specifically limit this.

[0092] The transceiver 2003 is used to communicate with network devices or with terminal devices.

[0093] Alternatively, transceiver 2003 may include a receiver and a transmitter. Figure 5 (Not shown separately). The receiver is used to implement the receiving function, and the transmitter is used to implement the transmitting function.

[0094] Optionally, the transceiver 2003 can be integrated with the first processor 2001, or it can exist independently and be connected to the interface circuit of the vehicle occupant protection system's collaborative control device 410. Figure 5 (Not shown in the image) is coupled to the first processor 2001, and this embodiment of the invention does not specifically limit this.

[0095] It should be noted that, Figure 5 The structure of the vehicle welcome projection device shown does not constitute a limitation on the router. The actual knowledge structure recognition device may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0096] Furthermore, the technical effects of the vehicle welcome projection equipment can be referenced from the technical effects of the collaborative control method of the vehicle occupant protection system described in the above method embodiments, and will not be repeated here.

[0097] It should be understood that the first processor 2001 in the embodiments of the present invention may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0098] It should also be understood that the memory in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0099] The above embodiments can be implemented, in whole or in part, by software, hardware (such as circuits), firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0100] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0101] In this invention, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be a single item or multiple items.

[0102] It should be understood that, in various embodiments of the present invention, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0103] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0104] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the devices, apparatuses, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0105] In the several embodiments provided by this invention, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0106] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0107] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0108] If the aforementioned functions are implemented as 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 this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0109] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for controlling vehicle-mounted welcome projection, characterized in that, Includes the following steps: Detect the user's proximity and complete identity verification; After successful authentication, the welcome projection content that matches the authenticated user identity is invoked; The image data of the welcoming projection content is sent to the target projection component via a high-speed serial data transmission link; The image data is received and parsed, and a welcome projection is performed.

2. The vehicle-mounted welcome projection control method according to claim 1, characterized in that, Also includes: Establish a low-power connection via Bluetooth to initially wake up the system; The ultra-wideband positioning module is activated to perform high-precision positioning and calculate the relative position of the user and the vehicle. The key controller collects the user's digital key signal to obtain the user's identity information; The user identity information is sent to the intelligent cockpit domain controller for verification. Generate projection brightness adjustment instructions based on ambient light intensity; The brightness adjustment command is sent to the target projection component through the high-speed serial data transmission link to dynamically adjust the projection brightness.

3. The vehicle-mounted welcome projection control method according to claim 1, characterized in that, The high-speed serial data transmission link is a serializer-deserializer link, and the step of sending the image data of the welcoming projection content to the target projection component through the high-speed serial data transmission link includes: In the intelligent cockpit domain controller, parallel image signals are converted into high-speed serial signals via a serializer; The high-speed serial signal is transmitted to the projection component via a coaxial cable; In the projection component, the high-speed serial signal is restored to parallel image data by a deserializer.

4. The vehicle-mounted welcome projection control method according to claim 3, characterized in that, While transmitting the high-speed serial signal, power is supplied to the projection component through the same coaxial cable to achieve cable power supply.

5. The vehicle-mounted welcome projection control method according to claim 1, characterized in that, The step of retrieving the welcome projection content that matches the verified user identity includes: Retrieve personalized projection themes associated with the user's identity from local storage or the cloud; The projection subject includes still images, dynamic videos, or animated content.

6. The vehicle-mounted welcome projection control method according to claim 1, characterized in that, The method also includes a dynamic scene adaptation step: Real-time monitoring of vehicle status and environmental parameters; Adjust the projection content of the corresponding side projection component according to the door opening / closing status; Automatically adjusts projection brightness based on ambient light intensity; Based on navigation information, trigger corresponding projection content in specific scenarios.

7. The vehicle-mounted welcome projection control method according to claim 1, characterized in that, The method also includes an exception handling step: When a serializer / deserializer link failure is detected, the system automatically switches to the backup transmission link. When a projection component malfunctions, the operating status of other projection components is adjusted to compensate for the projection coverage.

8. A vehicle-mounted welcome projection control system, characterized in that, The system is used to perform the vehicle-mounted welcome projection control method as described in any one of claims 1-7, the system comprising: The intelligent cockpit domain controller is configured to generate image data for the welcome projection content and control the system's workflow. The sensing module is configured to detect when a user approaches and complete the authentication process. At least one projection component is configured to receive image data and perform projection; The intelligent cockpit domain controller is connected to the projection component via a high-speed serial data transmission link; The intelligent cockpit domain controller verifies the user's identity through the perception module, then calls up the welcome projection content that matches the user's identity, and sends the image data to the target projection component through the high-speed serial data transmission link.

9. A vehicle welcome projection device, characterized in that, include: Memory, which stores computer programs; The processor is configured to implement the steps of the vehicle-mounted welcome projection control method as described in any one of claims 1-7 when executing the computer program.

10. A vehicle, characterized in that, It integrates the vehicle-mounted welcome projection control system as described in claim 8, or is equipped with the vehicle welcome projection device as described in claim 9.

Images