Portable movable infotainment system implementation method and device, equipment and storage medium

Abstract

The invention discloses a portable movable information entertainment system implementation method, device and equipment and a storage medium, and relates to the technical field of vehicle-mounted communication, and the method comprises the steps: carrying out the dynamic authentication of a personal mobile terminal when the access of the personal mobile terminal through a plug-and-play interface is detected, and verifying the identity of a user; when the verification of the user identity is passed, granting an operation authority to the personal mobile terminal and synchronizing personalized data of the vehicle cabin to the personal mobile terminal, so that the personal mobile terminal stores and displays the personalized data, and the personalized data comprises user preference settings and vehicle state parameters; according to the method, vehicle-mounted bus communication is monitored in real time, the operation authority of the personal mobile terminal is terminated when abnormity is detected, and seamless replacement of the personal equipment to the vehicle-mounted information entertainment system is realized on the premise of guaranteeing the vehicle function safety through hardware-level safety isolation, dynamic authority control and heterogeneous calculation fusion.

Description

Technical Field

[0001] The present application relates to the field of vehicle-mounted communication technology, and in particular to a method, device, equipment, and storage medium for implementing a portable mobile infotainment system. Background Art

[0002] With the rapid development of automotive electronics and the ever-changing technology of smart cockpits, modern infotainment systems have three major pain points: the contradiction between the long hardware iteration cycle (3-5 years) and the fast iteration of consumer electronics products (1-2 years); user data is fixed on the vehicle side and cannot be migrated; the host system cost accounts for 15%-20% of the entire vehicle electronic architecture.

[0003] However, traditional solutions that use mirrored screen projection have problems such as high latency and limited functions.

[0004] The above content is only used to assist in understanding the technical solution of this application and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of this application is to provide a method, device, equipment and storage medium for implementing a portable and movable infotainment system, aiming to solve the technical problem of poor portability of in-vehicle entertainment systems.

[0006] To achieve the above objectives, the present application proposes a method for implementing a portable mobile infotainment system, the method comprising:

[0007] When a personal mobile terminal is detected to be connected through a plug-and-play interface, the personal mobile terminal is dynamically authenticated to verify the user's identity;

[0008] When the user identity is verified, the personal mobile terminal is granted operation authority and personalized data of the vehicle cabin is synchronized to the personal mobile terminal, so that the personal mobile terminal stores and displays the personalized data, wherein the personalized data includes user preference settings and vehicle status parameters;

[0009] The vehicle bus communication is monitored in real time, and when an abnormality is detected, the operation authority of the personal mobile terminal is terminated.

[0010] In one embodiment, the step of dynamically authenticating the personal mobile terminal and verifying the user's identity includes:

[0011] Obtaining user biometric data provided by the personal mobile terminal;

[0012] Verifying the authenticity of the user's identity based on the user's biometric data;

[0013] Generate an encrypted session key based on a digital certificate system and verify the legitimacy of the personal mobile terminal through the car company's authentication mechanism;

[0014] The distance between the personal mobile terminal and the vehicle is monitored in real time, and the user identity verification is determined to be successful only when the authenticity of the user identity is verified and the distance is within a preset safety range.

[0015] In one embodiment, the step of synchronizing the personalized data of the vehicle cabin to the personal mobile terminal includes:

[0016] Encrypting and storing the personalized data of the vehicle cabin through an encryption algorithm to obtain encrypted personalized data;

[0017] The encrypted personalized data is transmitted to the personal mobile terminal through a data synchronization protocol.

[0018] In one embodiment, the step of monitoring the vehicle bus communication in real time and terminating the operation authority of the personal mobile terminal when an abnormality is detected includes:

[0019] sending a heartbeat signal to the personal mobile terminal at a preset period, and determining that a communication interruption has occurred when no response is received from the personal mobile terminal after a preset number of consecutive heartbeat signals, and terminating the operation authority of the personal mobile terminal;

[0020] When the in-vehicle infotainment system is in a standby state, the in-vehicle infotainment system is activated to take over the operation authority, and the media playback function and the Bluetooth connection function of the personal mobile terminal are retained.

[0021] In one embodiment, the steps further include:

[0022] The vehicle bus traffic is analyzed through the long short-term memory neural network model to obtain the detection results;

[0023] When the detection result is that an unauthorized instruction is detected or the traffic pattern deviates from a normal range, the operation authority of the personal mobile terminal is terminated and a security log is generated.

[0024] In one embodiment, the method further comprises:

[0025] Encrypted transmission of vehicle fault codes to the personal mobile terminal and cloud platform via the on-board diagnostic interface to generate a diagnostic report that meets the standards;

[0026] Obtain maintenance recommendations generated by the cloud platform analyzing the diagnostic report, and push the maintenance recommendations to the personal mobile terminal in real time for display.

[0027] In one embodiment, the step of dynamically authenticating the personal mobile terminal and verifying the user's identity further includes:

[0028] Receiving a connection request initiated by the personal mobile terminal via Bluetooth or a wireless network; obtaining a client certificate sent by the personal mobile terminal;

[0029] Verify the validity of the client certificate through the encrypted pre-stored certificate, and when the verification is passed, generate the current session key and grant the personal mobile terminal operation authority;

[0030] If the personal mobile terminal does not confirm the takeover within the preset time, this process is terminated.

[0031] In addition, to achieve the above-mentioned purpose, the present application also proposes a portable mobile infotainment system implementation device, the device comprising:

[0032] A verification module is used to dynamically authenticate the personal mobile terminal and verify the user's identity when detecting that the personal mobile terminal is connected through the plug-and-play interface;

[0033] a permission allocation module, configured to grant operation permissions to the personal mobile terminal and synchronize personalized data of the vehicle cabin to the personal mobile terminal when the user identity is verified, so that the personal mobile terminal stores and displays the personalized data, wherein the personalized data includes user preference settings and vehicle status parameters;

[0034] The abnormality detection module is used to monitor the vehicle bus communication in real time and terminate the operation authority of the personal mobile terminal when an abnormality is detected.

[0035] In addition, to achieve the above-mentioned purpose, the present application also proposes a portable mobile infotainment system implementation device, which includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is configured to implement the steps of the portable mobile infotainment system implementation method as described above.

[0036] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the portable mobile infotainment system implementation method as described above are implemented.

[0037] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the steps of the portable mobile infotainment system implementation method as described above.

[0038] One or more technical solutions proposed in this application have at least the following technical effects:

[0039] When it is detected that a personal mobile terminal is connected through the plug-and-play interface, the personal mobile terminal is dynamically authenticated to verify the user's identity; when the user's identity is verified, the personal mobile terminal is granted operating permissions and the personalized data of the vehicle cabin is synchronized to the personal mobile terminal, so that the personal mobile terminal can store and display personalized data, which includes user preference settings and vehicle status parameters; the vehicle bus communication is monitored in real time, and when an anomaly is detected, the operating permissions of the personal mobile terminal are terminated. Through hardware-level security isolation, dynamic permission management and heterogeneous computing integration, the seamless replacement of the vehicle infotainment system by personal devices is achieved while ensuring the functional safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 A flowchart of the first embodiment of the method for implementing the portable mobile infotainment system of the present application is provided;

[0043] Figure 2 A functional block diagram of a portable / mobile infotainment system according to the first embodiment of the method for implementing a portable / mobile infotainment system of the present application;

[0044] Figure 3 A functional block diagram of a portable / mobile infotainment system according to the first embodiment of the method for implementing a portable / mobile infotainment system of the present application;

[0045] Figure 4 A functional link diagram between a personal user terminal and a fault diagnosis instrument provided in the first embodiment of the portable mobile infotainment system implementation method of this application;

[0046] Figure 5 A flowchart illustrating a second embodiment of a method for implementing a portable mobile infotainment system of the present application is provided;

[0047] Figure 6 This is a schematic diagram of the module structure of a device for implementing a portable mobile infotainment system according to an embodiment of the present application;

[0048] Figure 7This is a schematic diagram of the device structure of the hardware operating environment involved in the implementation method of the portable mobile infotainment system in the embodiment of the present application.

[0049] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0051] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0052] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, mobile phone, etc., or an electronic device capable of implementing the above functions, a portable mobile infotainment system implementation device, etc. The following describes this embodiment and the following embodiments using a portable mobile infotainment system implementation device as an example.

[0053] Based on this, the embodiment of the present application provides a method for implementing a portable mobile infotainment system, referring to Figure 1 , Figure 1 This is a flowchart of the first embodiment of the device method for implementing the portable mobile infotainment system of the present application.

[0054] In this embodiment, the portable mobile infotainment system implementation method includes steps S10 to S30:

[0055] Step S10, when detecting that a personal mobile terminal is connected through the plug-and-play interface, dynamically authenticate the personal mobile terminal to verify the user's identity;

[0056] It should be noted that personal mobile terminals refer to smart devices (such as mobile phones and tablets) carried by users that have the communication capabilities to interact with the vehicle's systems. Plug-and-play interfaces support standardized physical connections (such as Type-C), automatically identifying devices and establishing communication links without manual configuration.

[0057] Dynamic authentication is a real-time, multi-factor identity authentication mechanism that combines biometrics, digital certificates, and physical distance monitoring to dynamically grant operational permissions.

[0058] It should be understood that traditional infotainment system links and functional implementations include:

[0059] Bluetooth connection and function implementation, through traditional Bluetooth (BLE) standardized services and protocols (such as Bluetooth 5.0+ protocol stack) to bridge personal terminals and vehicle Bluetooth, perform audio and video control, Bluetooth key pairing (including digital keys), voice control, etc.

[0060] WIFI connection and communication functions, through 802.11ac / ax for Internet access, local hotspot sharing, WIFI data transmission, car cloud services, and can also use 2.4G+5G dual-band concurrent technology for interconnection.

[0061] Application ecology, the APP application market of mobile phones / pads is interconnected with the car-side application store (third-party SDK integration), interoperability is achieved through Android / Linux kernel adaptation and sandbox security mechanism, and voice and touch are implemented through API standardization.

[0062] Audio and video playback, multi-format decoding (H.265 / HE-AAC), Dolby Atmos support, multi-device screen projection (video split-screen display), etc.

[0063] like Figure 2 As shown, the cockpit infotainment provides output wiring harnesses for data and power interfaces. The interfaces include Type-C and Linghtning (the above figure shows a universal interface, and Type-C interface is used to refer to all interfaces below). The on-board Type-C interface connects to the user's pad / mobile phone for plug-and-play. The interface functions and requirements are as follows:

[0064] Data transmission / charging supports 40Gbps transmission rates, 60W+ fast charging protocols, overvoltage / overcurrent protection on the power port, HD support, 48Gbps bandwidth, 8k@60Hz video, consumer electronics control protocol linkage, and voice input and output. The control signal interface supports standard CAN / LIN / CAN FD / Ethernet bus data control and input and output; the wireless interface (non-hardwired interface) enables real-time information exchange with in-vehicle Bluetooth, Wi-Fi, etc. Durability and installation vibration requirements require the Type-C interface to have a lifespan of more than 10,000 insertions and easy replacement; vibration meets automotive-grade random vibration and shock requirements.

[0065] The functional block diagram of the portable / mobile infotainment system (interacting with infotainment in the vehicle network topology (partial, not including the power domain), using CAN / LIN / Ethernet, etc., with CAN referring to all communication methods, the same below) is as follows: Figure 3 As shown, the functions of each system module are as follows:

[0066] The body domain (body CAN) is mainly used to control doors, windows, seats, lights, and door locks. Some air-conditioning related functions can also be placed in the body domain due to the need for energy management. This function includes air-conditioning cooling / heating, PTC heating, water pump control, battery power detection, etc. Figure 1 The dotted line connecting the air conditioning and sunroof shade in the middle body domain is to highlight the function of portable infotainment to control the air conditioning and sunroof. In fact, the signal transmission link is routed from the gateway GW to each controller and then to the actuator. The same is true for the chassis domain.

[0067] The infotainment domain integrates multimedia, navigation system, voice assistant, mobile phone interconnection, vehicle status display and other functions. At the same time, various soft switches are set on the infotainment screen to turn on / off various functions of the infotainment domain (such as navigation, music) and various functions of the body domain (such as seat adjustment, air conditioning switch, sunroof / sunshade switch, etc.). The modern smart cockpit infotainment domain also has ecological expansion functions, such as application store and mobile phone interconnection functions, which are more in line with the functions of personal mobile phones / pads.

[0068] The main interactions between the chassis domain and infotainment are the switching of driving modes (user driving preferences) (sport mode, snow mode, involving suspension-related adjustments), switching of intelligent driving scene modes, display of parking field-related actuators (reversing radar warning, reversing assist line display, etc.), environmental perception and predictive control (turning lane display, front speed bump and pothole reminders, etc.).

[0069] Diagnosis, user PAD / mobile phone can read vehicle fault codes and related diagnostic information through OBD-GW (gateway)-PAD / mobile phone (user terminal), and information that affects driving safety will be directly displayed on the user terminal for alarm (alarm information can be set). Some fault diagnostic codes can be cleared through the user terminal (such as tire pressure, etc.). At the same time, when the user finishes driving, he can take away the personal terminal (mobile phone / pad) and obtain the vehicle diagnostic report and vehicle driving, functional performance, personal operation and other information during the driving process through the terminal at home or other scenarios. By summarizing and summarizing some of the user's driving behaviors, vehicle usage habits, etc., we provide users with professional and knowledgeable suggestions to facilitate users to better operate and use the vehicle.

[0070] Step S20: When the user identity is verified, the personal mobile terminal is granted operation authority and the personalized data of the vehicle cabin is synchronized to the personal mobile terminal, so that the personal mobile terminal stores and displays the personalized data, which includes user preference settings and vehicle status parameters;

[0071] In the specific implementation, the differentiated data of the vehicle-side cockpit is transmitted to the user's personal end through the data synchronization protocol. The data is stored in encrypted form and the user profile is encrypted in AES-XTS mode. Typical data includes seat memory, ambient light scene mode, voice assistant model, etc. Among them, the personal end and the vehicle-side / cockpit end are integrated with the in-vehicle Ethernet technology and connected with the 10BASE-T1S single-pair Ethernet technology; the personal end is directly connected to the vehicle-side cockpit AI chip to directly process various sensor / camera data.

[0072] It should be noted that personalized data includes user-defined settings such as seat position memory, ambient light mode, voice assistant parameters, and real-time vehicle status (such as battery power and tire pressure).

[0073] The encryption algorithm may be AES-XTS, which is used to encrypt data with high strength to prevent theft or tampering during transmission.

[0074] The data synchronization protocol may be 10BASE-T1S single-pair Ethernet, which supports high-speed, low-latency data transmission.

[0075] The encryption storage process may be to encrypt the personalized data using an AES-XTS algorithm and then store it in a secure storage module (such as an HSM) of the vehicle system.

[0076] The process of transmitting to the terminal can be to push the encrypted data to the terminal in real time through the Type-C interface and Ethernet protocol, and display it after decryption.

[0077] In a feasible implementation, step S20 may include steps A11 to A12:

[0078] Step A11: Encrypting and storing the personalized data of the vehicle cabin using an encryption algorithm to obtain encrypted personalized data;

[0079] It should be noted that the encryption algorithm (AES-XTS) can be an encryption mode optimized for storage devices to prevent data from being cracked when stored statically.

[0080] Encrypted storage means encrypting personalized data according to the AES-XTS standard and storing it in a secure storage area of the vehicle system (such as an eMMC encrypted partition).

[0081] Step A12: The encrypted personalized data is transmitted to the personal mobile terminal through the data synchronization protocol.

[0082] It should be noted that the data synchronization protocol (10BASE-T1S) is a single-pair Ethernet technology that supports low-cost and high-reliability in-vehicle data transmission.

[0083] The process of transmitting to the terminal is to stream the encrypted data to the terminal through the USB4.0 protocol and Ethernet channel of the Type-C interface.

[0084] Furthermore, the vehicle fault code is encrypted and transmitted to the personal mobile terminal and cloud platform through the on-board diagnostic interface to generate a diagnostic report that meets the standards;

[0085] Obtain maintenance recommendations generated by the cloud platform's analysis and diagnosis reports, and push the recommendations to personal mobile terminals in real time for display.

[0086] like Figure 4 As shown, through the interaction of diagnostic information between OBD and personal user end, the fault definition and processing method are integrated into the personal app. When the user and the vehicle cockpit are successfully authenticated, OBD actively / passively sends diagnostic information to the personal end to give the user an early warning; this function can also be implemented through the cloud platform-personal end.

[0087] Step S30: monitor the vehicle bus communication in real time, and terminate the operation authority of the personal mobile terminal when an abnormality is detected.

[0088] In the specific implementation, after the personal side takes over, the system sends heartbeat packets every 200ms (configurable, such as 500ms or higher). If these packets are lost multiple times (configurable, such as three times), the degradation strategy is triggered. When there are dual systems (the vehicle side still has IVI), the vehicle side IVI takes over control, and the personal side retains basic functions such as media playback and Bluetooth connection. When the LSTM-based CAN process is abnormal, that is, when the system detects an intrusion (information security), the personal side control function is disabled.

[0089] It should be noted that the vehicle bus communication is a data interaction network between the internal controllers of the vehicle (such as the body domain and chassis domain), which adopts CAN, LIN, Ethernet and other protocols.

[0090] In a feasible implementation, step S30 may include steps A21 to A22:

[0091] Step A21: sending a heartbeat signal to the personal mobile terminal at a preset period. If no response is received from the personal mobile terminal for the preset number of consecutive times, it is determined that a communication interruption has occurred, and the operation authority of the personal mobile terminal is terminated.

[0092] It should be noted that the preset period is the detection interval set according to the real-time requirements of the system and can be configured to be 200ms to 500ms.

[0093] The heartbeat signal is a detection signal sent periodically (for example, once every 200ms) to confirm the connection status between the terminal and the vehicle system.

[0094] If the heartbeat response is lost three times in a row for a preset number of times, it is determined that the communication is interrupted to avoid misjudgment.

[0095] Termination authority means that the vehicle system revokes the terminal's authority to send control commands, while retaining its non-safety-related functions such as media playback.

[0096] Step A22: When the in-vehicle infotainment system is in standby mode, activate the in-vehicle infotainment system to take over the operation authority, and retain the media playback function and Bluetooth connection function of the personal mobile terminal.

[0097] It should be noted that the standby state is a low-power operating mode of the IVI system, which can be quickly activated to take over control.

[0098] Retaining the media playback function of personal mobile terminals means that the terminals retain basic entertainment functions such as audio decoding and video rendering.

[0099] It is understandable that this solution also extends the dual-system redundancy function. When the cockpit itself includes IVI, combined with the scene mode, the priority can be set to give priority to the user-side infotainment system control. When the individual user side loses authentication or anomalies, the cockpit IVI function takes over;

[0100] Movable installation, designed with horizontal / vertical / up and down tracks, mobile phones / pads (personal user terminals) can be moved within the installation range, making it convenient for users to adjust the position.

[0101] Furthermore, step S30 further includes:

[0102] The vehicle bus traffic is analyzed through the long short-term memory neural network model to obtain the detection results;

[0103] When the detection result is that an unauthorized instruction is detected or the traffic pattern deviates from the normal range, the operation authority of the personal mobile terminal is terminated and a security log is generated.

[0104] It should be noted that the long short-term memory (LSTM) neural network is a deep learning model suitable for time series data analysis and is used to identify abnormal patterns of bus traffic.

[0105] In the specific implementation, CAN bus traffic is analyzed in real time based on the LSTM model to identify abnormal patterns (such as DoS attacks and command injection).

[0106] The verification specifications of this solution must specifically meet functional safety, information security, and related requirements. Other requirements such as environmental reliability, materials, mechanical properties, and EMC must be consistent with those of pre-installed electrical components. The functional safety and information security requirements are as follows:

[0107] Functional safety must meet ISO 26262 standards, ASIL-B certification requirements, and MISRA C-2012 coding standards (for vehicle-side middleware). Information security must meet the requirements of GM / T 0054-2018, as well as resistance to the OWASP IoT Top 10 attack vectors.

[0108] The performance indicators are shown in Table 1 below:

[0109]

[0110]

[0111] This embodiment provides a method for implementing a portable mobile infotainment system. When a personal mobile terminal is detected to be connected through a plug-and-play interface, the personal mobile terminal is dynamically authenticated to verify the user's identity. When the user's identity is successfully verified, the personal mobile terminal is granted operating authority and the personalized data of the vehicle cabin is synchronized to the personal mobile terminal, so that the personal mobile terminal can store and display the personalized data, which includes user preference settings and vehicle status parameters. The vehicle bus communication is monitored in real time, and when an abnormality is detected, the operating authority of the personal mobile terminal is terminated. Through hardware-level security isolation, dynamic authority management and control, and heterogeneous computing integration, the personal device is seamlessly replaced by the vehicle infotainment system while ensuring the functional safety of the vehicle.

[0112] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above embodiment 1 can be referred to the above introduction and will not be described in detail later. Figure 5 , step S10, including steps S101 to S103:

[0113] Step S101, obtaining user biometric data provided by a personal mobile terminal;

[0114] It should be noted that the user's biometric data can be the user's unique biometric identification information obtained through terminal sensors (such as fingerprint recognition modules, 3D structured light cameras, and voiceprint collection microphones).

[0115] The acquisition process can be that the vehicle system receives the original biometric data (such as facial point cloud, fingerprint image) transmitted by the terminal through Bluetooth, Wi-Fi or USB protocol.

[0116] It should be understood that the hardware authentication design uses a built-in SE security chip to store user biometrics (such as face (recognition), voiceprint, iris, etc.). The APP opens permissions and users can set and add / delete biometrics. The vehicle-mounted end is equipped with a hardware security module and supports the national secret SM2 / SM9 security authentication algorithm.

[0117] Step S102: Verify the authenticity of the user's identity based on the user's biometric data;

[0118] It should be noted that the identity authenticity verification process can be to confirm that the biometric features come from a real living person rather than a counterfeit medium through a liveness detection algorithm (such as infrared reflection analysis, micro-expression recognition).

[0119] The verification process can be that the vehicle system calls a pre-trained biometric comparison model (such as a CNN network) to match the data transmitted by the terminal with a pre-stored template.

[0120] It should be understood that user live feature detection, 3D structured light / ToF camera collects user face / gesture information, and combines infrared liveness detection (to prevent forged authentication of photos, videos, etc.). User fingerprints use capacitive and ultrasonic dual-mode sensors for dual authentication, supporting 360° recognition at any angle.

[0121] Step S103: Generate an encrypted session key based on the digital certificate system and verify the legitimacy of the personal mobile terminal through the car manufacturer's authentication mechanism;

[0122] It should be noted that the digital certificate system is a public key infrastructure (PKI) based on the X509V3 standard, which includes terminal certificates issued by the root certificate authority (CA) of the automobile company.

[0123] The car manufacturer authentication mechanism means that the terminal must be pre-installed with a digital certificate authorized by the car manufacturer, and its legitimacy must be verified through an HSM (hardware security module).

[0124] The process of generating session keys can be to dynamically negotiate keys using the ECDH-384 algorithm to ensure the security of the communication link;

[0125] The legitimacy verification process can be that the on-board HSM verifies the terminal certificate signature chain to confirm that it has not been tampered with or revoked.

[0126] It should be understood that based on the PKI system, the personal terminal and the vehicle end exchange X509V3 digital certificates, and the certificate chain is anchored to the car manufacturer's root CA. Each time the personal terminal and the vehicle end are connected, OCSP online certificate status verification needs to be performed to prevent the risk of certificate revocation;

[0127] The session key is negotiated using the ECDH-384 algorithm, and the key lifecycle can be customized by the user (e.g., less than 6 hours). Sensitive operations (e.g., the need to control the vehicle again after the current trip cycle is completed) require secondary dynamic verification.

[0128] Step S104 , monitoring the distance between the personal mobile terminal and the vehicle in real time, and determining that the user identity verification is successful only when the user identity is authentic and the distance is within a preset safety range.

[0129] It should be noted that the preset safety range can be a physical distance threshold of the user operating the terminal (such as ±3 cm). If it exceeds the range, it will be determined as a potential safety risk.

[0130] The step of real-time monitoring of the distance may be that the vehicle-mounted UWB module periodically exchanges signals with the terminal and calculates the time of flight (ToF) between the two to determine the distance.

[0131] It should be understood that this step is environmental perception authentication, which adopts standard UWB (ultra-wideband) technology, combined with Bluetooth BLE and NFC to monitor the relative position of the device and the vehicle cabin in real time (the positioning accuracy can be accurate to ±3cm), and verify the authenticity of the physical distance between the user's personal end and the vehicle cabin end through time-of-flight (TOF) detection; use multi-sensor fusion verification, mobile phone gyroscope and vehicle cabin data comparison, detect abnormal movement patterns (such as the device is illegally fixed), and use optical sensor synchronization verification (to prevent remote screen sharing attacks).

[0132] Furthermore, the step of dynamically authenticating the personal mobile terminal and verifying the user's identity also includes:

[0133] Receive a connection request initiated by a personal mobile terminal via Bluetooth or wireless network; obtain a client certificate sent by the personal mobile terminal;

[0134] The validity of the client certificate is verified through the encrypted pre-stored certificate. When the verification is successful, the current session key is generated and the personal mobile terminal operation permission is granted;

[0135] This process will be terminated if the personal mobile terminal does not confirm the takeover within the preset time.

[0136] In the specific implementation, a secure handshake is performed, using mobile phone APP, Bluetooth, etc. to initiate a connection or pairing request (device discovery) between the personal end and the vehicle end; the personal end sends the client certificate (such as facial information, fingerprint, voiceprint, etc.), and the vehicle-side cockpit HSM verifies the validity of the certificate and generates the current session key (certificate exchange); the client certificate is transmitted after being signed by the Secure Enclave, and the vehicle-side HSM compares the pre-stored certificate encrypted with PSK (biometric authentication).

[0137] It should be noted that the terminal broadcasts a connection request via Bluetooth / Wi-Fi, and the vehicle system responds and establishes a secure channel; the terminal sends a biometric certificate signed by the Secure Enclave (such as encrypted facial data).

[0138] The certificate verification and session key generation steps include: the on-board HSM decrypts the certificate and compares it with the pre-stored PSK encrypted certificate chain; after verification, a temporary session key is generated (the validity period can be set, such as 6 hours).

[0139] The steps of permission granting and timeout termination include: a takeover confirmation interface pops up on the terminal interface (10-second countdown); if the user fails to confirm in time, the process is terminated to prevent malicious hijacking.

[0140] This embodiment provides a method for implementing a portable, removable infotainment system. Through innovative multi-factor dynamic authentication, secure handshake protocols, redundant control, and intelligent anomaly detection, a safe, reliable, and user-friendly portable infotainment system is realized, which is significantly superior to the single authentication and passive defense mechanisms of traditional in-vehicle systems.

[0141] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the implementation method of the portable mobile infotainment system of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0142] This application also provides a portable mobile infotainment system implementation device, please refer to Figure 6 , the portable mobile infotainment system implementation device includes:

[0143] The verification module 10 is used to dynamically authenticate the personal mobile terminal and verify the user's identity when detecting that the personal mobile terminal is connected through the plug-and-play interface;

[0144] The permission allocation module 20 is used to grant operation permissions to the personal mobile terminal and synchronize the personalized data of the vehicle cabin to the personal mobile terminal when the user identity is verified, so that the personal mobile terminal can store and display the personalized data, which includes user preference settings and vehicle status parameters;

[0145] The abnormality detection module 30 is used to monitor the vehicle bus communication in real time and terminate the operation authority of the personal mobile terminal when an abnormality is detected.

[0146] The portable mobile infotainment system implementation device provided in this application, employing the portable mobile infotainment system implementation method of the aforementioned embodiments, can address the technical issue of poor portability of in-vehicle entertainment systems. Compared to the prior art, the portable mobile infotainment system implementation device provided in this application has the same beneficial effects as the portable mobile infotainment system implementation method provided in the aforementioned embodiments. Other technical features of the portable mobile infotainment system implementation device are the same as those disclosed in the aforementioned embodiments and are not further elaborated here.

[0147] In one embodiment, the verification module 10 is further configured to obtain user biometric data provided by a personal mobile terminal;

[0148] Verify the authenticity of the user's identity based on the user's biometric data;

[0149] Generate encrypted session keys based on the digital certificate system and verify the legitimacy of personal mobile terminals through the car company's authentication mechanism;

[0150] The distance between the personal mobile terminal and the vehicle is monitored in real time, and the user identity verification is determined to be successful only when the user's identity is authentic and the distance is within the preset safety range.

[0151] In one embodiment, the authority allocation module 20 is further configured to encrypt and store the personalized data of the vehicle cabin using an encryption algorithm to obtain encrypted personalized data;

[0152] The encrypted personalized data is transmitted to the personal mobile terminal through the data synchronization protocol.

[0153] In one embodiment, the anomaly detection module 30 is further configured to send a heartbeat signal to the personal mobile terminal at a preset period, and when no response is received from the personal mobile terminal for a preset number of consecutive times, determine that a communication interruption has occurred, and terminate the operation authority of the personal mobile terminal;

[0154] When the in-vehicle infotainment system is in standby mode, the in-vehicle infotainment system is activated to take over the operating authority, retaining the media playback function and Bluetooth connection function of the personal mobile terminal.

[0155] In one embodiment, the anomaly detection module 30 is further configured to analyze the vehicle bus traffic using a long short-term memory neural network model to obtain a detection result;

[0156] When the detection result is that an unauthorized instruction is detected or the traffic pattern deviates from the normal range, the operation authority of the personal mobile terminal is terminated and a security log is generated.

[0157] In one embodiment, the anomaly detection module 30 is further configured to encrypt and transmit vehicle fault codes to a personal mobile terminal and a cloud platform via an onboard diagnostic interface to generate a diagnostic report that complies with standards;

[0158] Obtain maintenance recommendations generated by the cloud platform's analysis and diagnosis reports, and push the recommendations to personal mobile terminals in real time for display.

[0159] In one embodiment, the verification module 10 is further configured to receive a connection request initiated by a personal mobile terminal via Bluetooth or a wireless network; obtain a client certificate sent by the personal mobile terminal;

[0160] The validity of the client certificate is verified through the encrypted pre-stored certificate. When the verification is successful, the current session key is generated and the personal mobile terminal operation permission is granted;

[0161] This process will be terminated if the personal mobile terminal does not confirm the takeover within the preset time.

[0162] The present application provides a portable mobile infotainment system implementation device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the portable mobile infotainment system implementation method of the above-mentioned embodiment 1.

[0163] Reference below Figure 7 , which shows a schematic structural diagram of a portable mobile infotainment system implementation device suitable for implementing the embodiments of the present application. The portable mobile infotainment system implementation device in the embodiments of the present application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 7 The portable mobile infotainment system implementation device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0164] like Figure 7As shown, the portable mobile infotainment system implementation device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes based on a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. Various programs and data required for the operation of the portable mobile infotainment system implementation device are also stored in RAM 1004. Processing device 1001, ROM 1002, and RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, hard disk, etc.; and communication devices 1009. The communication devices 1009 can allow the portable mobile infotainment system implementation device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a portable mobile infotainment system implementation device with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have instead.

[0165] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0166] The portable mobile infotainment system implementation device provided in this application, utilizing the portable mobile infotainment system implementation method of the aforementioned embodiment, can address the technical issue of poor portability in in-vehicle entertainment systems. Compared to the prior art, the portable mobile infotainment system implementation device provided in this application achieves the same beneficial effects as the portable mobile infotainment system implementation method provided in the aforementioned embodiment. Other technical features of the portable mobile infotainment system implementation device are the same as those disclosed in the aforementioned embodiment and are not further elaborated upon here.

[0167] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0168] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0169] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer program) stored thereon, and the computer-readable program instructions are used to execute the portable mobile infotainment system implementation method in the above embodiment.

[0170] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0171] The computer-readable storage medium may be included in the portable mobile infotainment system implementation device; or may exist independently without being assembled into the portable mobile infotainment system implementation device.

[0172] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the portable mobile infotainment system implementation device, the portable mobile infotainment system implementation device is enabled to: obtain characteristic information of the road surface in front of the vehicle in real time; when the characteristic information indicates that there is a road surface in front that is prone to shock absorber noise, obtain the vehicle's driving state parameters, wherein the driving state parameters include the current vehicle speed, acceleration and steering wheel angle; when the acceleration does not exceed the preset acceleration threshold and the steering wheel angle does not exceed the preset angle threshold, query the shock absorber noise suppression strategy table based on the road surface characteristic information and the current vehicle speed to determine the operating current of the shock absorber; and adjust the damping force of the shock absorber based on the operating current to suppress the shock absorber noise.

[0173] Computer program code for performing the operations of the present application may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0174] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0175] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0176] The computer-readable storage medium provided in this application is a computer-readable storage medium storing computer-readable program instructions (i.e., a computer program) for executing the aforementioned method for implementing a portable, removable infotainment system. This computer-readable storage medium can address the technical issue of poor portability in in-vehicle entertainment systems. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the method for implementing a portable, removable infotainment system provided in the aforementioned embodiments, and are not further elaborated here.

[0177] The present application also provides a computer program product, comprising a computer program, which implements the steps of the above-mentioned portable mobile infotainment system implementation method when executed by a processor.

[0178] The computer program product provided in this application can solve the technical problem of poor portability of in-vehicle entertainment systems. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the method for implementing a portable, mobile infotainment system provided in the above embodiment, and will not be elaborated here.

[0179] The above description is only part of the embodiments of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for implementing a portable mobile infotainment system, characterized in that: The portable mobile infotainment system implementation method includes: When a personal mobile terminal is detected to be connected through a plug-and-play interface, the personal mobile terminal is dynamically authenticated to verify the user's identity; When the user identity is verified, the personal mobile terminal is granted operation authority and personalized data of the vehicle cabin is synchronized to the personal mobile terminal, so that the personal mobile terminal stores and displays the personalized data, wherein the personalized data includes user preference settings and vehicle status parameters; The vehicle bus communication is monitored in real time, and when an abnormality is detected, the operation authority of the personal mobile terminal is terminated.

2. The method for implementing a portable mobile infotainment system according to claim 1, wherein: The step of dynamically authenticating the personal mobile terminal and verifying the user's identity includes: Obtaining user biometric data provided by the personal mobile terminal; Verifying the authenticity of the user's identity based on the user's biometric data; Generate an encrypted session key based on a digital certificate system and verify the legitimacy of the personal mobile terminal through the car company's authentication mechanism; The distance between the personal mobile terminal and the vehicle is monitored in real time, and the user identity verification is determined to be successful only when the authenticity of the user identity is verified and the distance is within a preset safety range.

3. The method for implementing a portable mobile infotainment system according to claim 1, wherein: The step of synchronizing the personalized data of the vehicle cockpit to the personal mobile terminal includes: Encrypting and storing the personalized data of the vehicle cabin through an encryption algorithm to obtain encrypted personalized data; The encrypted personalized data is transmitted to the personal mobile terminal through a data synchronization protocol.

4. The method for implementing a portable mobile infotainment system according to claim 1, wherein: The step of monitoring the vehicle bus communication in real time and terminating the operation authority of the personal mobile terminal when an abnormality is detected includes: sending a heartbeat signal to the personal mobile terminal at a preset period, and determining that a communication interruption has occurred when no response is received from the personal mobile terminal after a preset number of consecutive heartbeat signals, and terminating the operation authority of the personal mobile terminal; When the in-vehicle infotainment system is in a standby state, the in-vehicle infotainment system is activated to take over the operation authority, and the media playback function and the Bluetooth connection function of the personal mobile terminal are retained.

5. The method for implementing a portable mobile infotainment system according to claim 4, wherein: The steps further include: The vehicle bus traffic is analyzed through the long short-term memory neural network model to obtain the detection results; When the detection result is that an unauthorized instruction is detected or the traffic pattern deviates from a normal range, the operation authority of the personal mobile terminal is terminated and a security log is generated.

6. The method for implementing a portable mobile infotainment system according to claim 1, wherein: The method further comprises: Encrypted transmission of vehicle fault codes to the personal mobile terminal and cloud platform via the on-board diagnostic interface to generate a diagnostic report that meets the standards; Obtain maintenance recommendations generated by the cloud platform analyzing the diagnostic report, and push the maintenance recommendations to the personal mobile terminal in real time for display.

7. The method for implementing a portable mobile infotainment system according to claim 1, wherein: The step of dynamically authenticating the personal mobile terminal and verifying the user's identity also includes: Receiving a connection request initiated by the personal mobile terminal via Bluetooth or a wireless network; obtaining a client certificate sent by the personal mobile terminal; Verify the validity of the client certificate through the encrypted pre-stored certificate, and when the verification is passed, generate the current session key and grant the personal mobile terminal operation authority; If the personal mobile terminal does not confirm the takeover within the preset time, this process is terminated.

8. A portable mobile infotainment system implementation device, characterized in that: The device comprises: A verification module is used to dynamically authenticate the personal mobile terminal and verify the user's identity when detecting that the personal mobile terminal is connected through the plug-and-play interface; a permission allocation module, configured to grant operation permissions to the personal mobile terminal and synchronize personalized data of the vehicle cabin to the personal mobile terminal when the user identity is verified, so that the personal mobile terminal stores and displays the personalized data, wherein the personalized data includes user preference settings and vehicle status parameters; The abnormality detection module is used to monitor the vehicle bus communication in real time and terminate the operation authority of the personal mobile terminal when an abnormality is detected.

9. A portable mobile infotainment system implementation device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the portable mobile infotainment system implementation method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the method for implementing the portable mobile infotainment system according to any one of claims 1 to 7 are implemented.

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