Internet of vehicles equipment control system and method

Abstract

The invention provides an Internet of Vehicles equipment control system and method, and the method comprises the steps: generating the state information of a Bluetooth terminal in a vehicle according to the state feature of the Bluetooth terminal and the signal feature of the Bluetooth terminal in a silent state; determining the response reliability of the Bluetooth terminal to the Bluetooth activation instruction through the state information and the signal transmission characteristic of the Bluetooth terminal in the communication interaction state; according to the time domain feature and the response reliability of each pairing request signal, determining the interaction confidence of each pairing request signal, and screening out an effective pairing request signal from all the pairing request signals through each interaction confidence; the trusted signature of the Bluetooth terminal to the target device terminal is generated through the signal attribute of the effective pairing request signal, and then the target device terminal and the Bluetooth terminal are subjected to Bluetooth pairing based on the trusted signature. Based on the above scheme, the dynamic response pairing of the Bluetooth signal between the device terminal and the vehicle Bluetooth terminal in the Internet of Vehicles can be realized, so that the Bluetooth pairing efficiency in the Internet of Vehicles can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle-mounted Bluetooth terminals, and more specifically, to a vehicle networking equipment control system and method. Background Art

[0002] In modern Internet of Vehicles, the combination of vehicle-mounted devices and Bluetooth terminals is one of the key technologies for realizing vehicle-mounted communications, intelligent transportation and Internet of Vehicles functions. Vehicle-mounted Bluetooth terminals use Bluetooth technology to transmit low-power and high-efficiency data to other devices, and are usually used for in-vehicle entertainment, navigation systems, vehicle diagnosis, and connection with external smart devices.

[0003] In traditional Internet of Vehicles systems, the traditional Bluetooth pairing process lacks a sophisticated verification mechanism during signal identification and device verification, and is easily attacked by malicious devices or accessed by unauthorized devices, resulting in the pairing process often being inefficient. Especially in the dynamic and complex environment of the Internet of Vehicles, the signal noise is large, resulting in high pairing response delays, reducing the overall communication efficiency and even affecting the communication security between vehicles in the Internet of Vehicles. The dynamic response pairing of Bluetooth signals between device terminals and vehicle Bluetooth terminals in the Internet of Vehicles can effectively and significantly improve the pairing efficiency, avoid unnecessary redundant communications, and greatly reduce response delays. Therefore, how to achieve dynamic response pairing of Bluetooth signals between device terminals and vehicle Bluetooth terminals in the Internet of Vehicles, thereby improving the Bluetooth pairing efficiency in the Internet of Vehicles, is a difficult problem faced by the industry. Summary of the invention

[0004] The present application provides a vehicle networking device control system and method, which can realize dynamic response pairing of Bluetooth signals between a device terminal in the vehicle networking and a vehicle Bluetooth terminal, thereby improving the Bluetooth pairing efficiency in the vehicle networking.

[0005] In a first aspect, the present application provides a Bluetooth terminal interaction method of an Internet of Vehicles device, which is used to perform pairing control on a Bluetooth terminal in the Internet of Vehicles, including: When the Bluetooth terminal in the vehicle receives the Bluetooth activation command from the Internet of Vehicles, the Bluetooth terminal switches from the silent state to the communication interaction state, monitors in real time the pairing request signals received by the Bluetooth terminal from each device terminal in the communication interaction state, and obtains the device state of the Bluetooth terminal in the silent state; Extracting the state characteristics of the Bluetooth terminal from the device state, generating the state information of the Bluetooth terminal in the vehicle according to the state characteristics and the signal characteristics of the Bluetooth terminal in the silent state, and determining the response reliability of the Bluetooth terminal to the Bluetooth activation instruction according to the state information and the signal transmission characteristics of the Bluetooth terminal in the communication interaction state; determining the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability, and then screening out valid pairing request signals from all pairing request signals according to each interaction confidence; The device terminal corresponding to the valid pairing request signal is used as the target device terminal, and a trusted signature of the Bluetooth terminal for the target device terminal is generated through the signal attribute of the valid pairing request signal, and then the target device terminal is paired with the Bluetooth terminal based on the trusted signature.

[0006] In some embodiments, extracting the state feature of the Bluetooth terminal from the device state specifically includes: Determine all key functional components in the Bluetooth terminal, and then obtain functional indicator information of each key functional component in the Bluetooth terminal from the device status; Extracting functional index characteristics of each key functional component in the Bluetooth terminal from each functional index information; Determine the status characteristics of the Bluetooth terminal based on all functional indicator characteristics.

[0007] In some embodiments, generating the status information of the Bluetooth terminal in the vehicle according to the status characteristics and the signal characteristics of the Bluetooth terminal in the silent state specifically includes: Obtain signal characteristics of the Bluetooth terminal in silent state; Performing feature fusion on the signal feature of the Bluetooth terminal in the silent state and the state feature to obtain the device response feature; The state information of the Bluetooth terminal in the vehicle is generated by using a finite state machine in combination with the device response characteristics.

[0008] In some embodiments, determining the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability specifically includes: For each pairing request signal, extracting a time domain feature from the pairing request signal, and then determining an information entropy of the time domain feature as the mutual information entropy; Determine the information entropy of the response reliability as the response information entropy; The interaction information entropy and the response information entropy are matched to obtain the interaction confidence of the pairing request signal, and then obtain the interaction confidence of each pairing request signal.

[0009] In some embodiments, generating a trusted signature of the Bluetooth terminal to the target device terminal through the signal attribute of the valid pairing request signal specifically includes: Extracting valid signal attributes from the valid pairing request signal, and then mapping the signal attributes to terminal response features of the signal in the Bluetooth terminal; A trusted signature of the Bluetooth terminal to the target device terminal is generated based on the terminal response characteristics.

[0010] In some embodiments, the silent state is a low power consumption mode in which no communication signal is actively sent or received.

[0011] In some embodiments, the communication interaction state is a high power consumption mode for actively performing communication signal interaction.

[0012] In a second aspect, the present application provides a vehicle networking device control system, including a Bluetooth terminal interaction unit, wherein the Bluetooth terminal interaction unit includes: A monitoring module is used to switch the Bluetooth terminal from a silent state to a communication interaction state when the Bluetooth terminal in the vehicle receives a Bluetooth activation command from the Internet of Vehicles, monitor in real time the pairing request signals received by the Bluetooth terminal from each device terminal in the communication interaction state, and obtain the device state of the Bluetooth terminal in the silent state; a processing module, configured to extract a state feature of the Bluetooth terminal from the device state, generate state information of the Bluetooth terminal in the vehicle according to the state feature and a signal feature of the Bluetooth terminal in a silent state, and determine the response reliability of the Bluetooth terminal to the Bluetooth activation instruction according to the state information and a signal transmission feature of the Bluetooth terminal in a communication interaction state; The processing module is further used to determine the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability, and then filter out the valid pairing request signal from all the pairing request signals according to each interaction confidence; The execution module is used to take the device terminal corresponding to the valid pairing request signal as the target device terminal, generate a trusted signature of the Bluetooth terminal for the target device terminal through the signal attribute of the valid pairing request signal, and then perform Bluetooth pairing between the target device terminal and the Bluetooth terminal based on the trusted signature.

[0013] In a third aspect, the present application provides a computer device, comprising a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the above-mentioned Bluetooth terminal interaction method of the Internet of Vehicles device.

[0014] In a fourth aspect, the present application provides a computer-readable storage medium, in which instructions or codes are stored. When the instructions or codes are run on a computer, the computer implements the above-mentioned Bluetooth terminal interaction method of the Internet of Vehicles device when executing.

[0015] The technical solution provided by the embodiments disclosed in this application has the following beneficial effects: In a vehicle networking device control system and method provided by the present application, when a Bluetooth terminal in a vehicle receives a Bluetooth activation instruction of the vehicle networking, the Bluetooth terminal switches from a silent state to a communication interaction state, monitors in real time whether the Bluetooth terminal receives pairing request signals from various device terminals in the communication interaction state, and obtains the device state of the Bluetooth terminal in the silent state; extracts the state characteristics of the Bluetooth terminal from the device state, generates state information of the Bluetooth terminal in the vehicle according to the state characteristics and the signal characteristics of the Bluetooth terminal in the silent state, and determines the response reliability of the Bluetooth terminal to the Bluetooth activation instruction according to the state information and the signal transmission characteristics of the Bluetooth terminal in the communication interaction state; determines the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability, and then filters out valid pairing request signals from all pairing request signals according to each interaction confidence; takes the device terminal corresponding to the valid pairing request signal as the target device terminal, generates a trusted signature of the Bluetooth terminal for the target device terminal according to the signal attributes of the valid pairing request signal, and then performs Bluetooth pairing of the target device terminal with the Bluetooth terminal based on the trusted signature.

[0016] It can be seen that in this application, a trusted signature of the Bluetooth terminal for the target device terminal is generated by the signal attributes of the effective pairing request signal, and then the target device terminal and the Bluetooth terminal are paired by Bluetooth based on the trusted signature; first, the response reliability is determined to obtain the reaction characteristics of the Internet of Vehicles device after receiving the Bluetooth activation command. The Internet of Vehicles environment is complex, and the signal is often interfered or blocked, resulting in a response delay or failure of the Bluetooth terminal pairing signal. By real-time monitoring of the signal characteristics of the Bluetooth terminal and combining the device status information, the Internet of Vehicles can evaluate its response strength and consistency, identify and exclude low-quality signal responses, thereby improving the signal response stability of the device terminal and the Bluetooth terminal in the Internet of Vehicles, thereby effectively reducing retries and pairing failures, and improving the pairing efficiency and success rate; then, By determining the interaction confidence, the degree of match between the pairing request signal and the response reliability of the Bluetooth activation command can be obtained. By calculating the interaction confidence of the pairing request signal, the Internet of Vehicles can screen out valid pairing request signals. In the Internet of Vehicles environment, the difference in signal quality of device terminals will affect the pairing success rate. By analyzing the time domain characteristics of the pairing signal in the device terminal and the response reliability of the Bluetooth terminal, the Internet of Vehicles can filter out invalid signals, thereby effectively avoiding conflicting requests and failed pairings, facilitating the improvement of the success rate and efficiency of Bluetooth pairing, and at the same time enhancing the security of the Internet of Vehicles and preventing illegal devices from accessing the Internet of Vehicles. In summary, based on the above scheme, dynamic response pairing of Bluetooth signals between device terminals and vehicle Bluetooth terminals in the Internet of Vehicles can be achieved, thereby improving the Bluetooth pairing efficiency in the Internet of Vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 is an exemplary flow chart of a Bluetooth terminal interaction method of an Internet of Vehicles device according to some embodiments of the present application; Figure 2 It is a basic communication mode diagram of the Internet of Vehicles shown in some embodiments of the present application; Figure 3 is a schematic diagram of a process for determining interaction confidence according to some embodiments of the present application; Figure 4 is a schematic diagram of the structure of a Bluetooth terminal interaction unit according to some embodiments of the present application; Figure 5 It is a structural diagram of a computer device for implementing a Bluetooth terminal interaction method for an Internet of Vehicles device according to some embodiments of the present application. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In order to better understand the technical solution of the present application, the technical solution of the present application will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] refer to Figure 1 , which is an exemplary flow chart of a Bluetooth terminal interaction method of a vehicle networking device according to some embodiments of the present application. The Bluetooth terminal interaction method of the vehicle networking device is mainly used to pair the Bluetooth terminal in the vehicle networking device. When implemented specifically, it includes the following steps: In step 101, when the Bluetooth terminal in the vehicle receives the Bluetooth activation command of the Internet of Vehicles, the Bluetooth terminal switches from the silent state to the communication interaction state, monitors in real time the pairing request signals received by the Bluetooth terminal from each device terminal in the communication interaction state, and obtains the device state of the Bluetooth terminal in the silent state.

[0022] It should be noted that, in the present application, the Bluetooth activation instruction is a Bluetooth instruction that instructs the Bluetooth terminal in the vehicle to switch from a silent state to a communication interaction state, wherein the silent state is a low-power mode that does not actively send or receive any communication signals, and the communication interaction state is a high-power mode that actively interacts with communication signals; the pairing request signal refers to a real-time signal received by the Bluetooth terminal in the communication interaction state, and the pairing request signal contains signal properties and signal strength, wherein the signal properties include frequency components, modulation mode, phase information and signal-to-noise ratio; the target device terminal refers to a device selected and connected by the Bluetooth terminal in the Bluetooth communication of the Internet of Vehicles, and the target device terminal can be any device that supports the Internet of Vehicles Bluetooth technology, such as: smart phones, headphones, sensors, computers, etc.

[0023] In specific implementation, the Internet of Vehicles can send a Bluetooth activation command to the Bluetooth terminal in the vehicle through the Bluetooth communication protocol. When the Bluetooth terminal in the vehicle receives the Bluetooth activation command from the Internet of Vehicles, the state machine in the Bluetooth terminal switches from a silent state to a communication interaction state according to the event triggered by the Bluetooth activation command. At the same time, the Bluetooth terminal starts to receive signals from the target device terminal in the Internet of Vehicles as pairing request signals received by the Bluetooth terminal from each device terminal in the Internet of Vehicles in the communication interaction state.

[0024] It should be noted that in the present application, in the silent state, the Bluetooth terminal does not receive external communication requests, nor does it actively send any signals. The Bluetooth terminal does not consume too much power, while reducing unnecessary interference and signal collisions. The purpose of the silent state is to reduce energy consumption and extend battery life; the device status represents a data set of the device status of the Bluetooth terminal in the vehicle within a specified time period, wherein the status data represents various types of device information of the Bluetooth terminal in the silent state, and the status data includes Bluetooth connection status, battery status, working status and system information (for example: memory usage, CPU load, temperature, etc.).

[0025] In some embodiments, obtaining the device status of the Bluetooth terminal when it is in a silent state can be achieved in the following manner: when the Bluetooth terminal in a vehicle is in a silent state, the vehicle's central console can be used to monitor the status data in the Bluetooth terminal, and the set of device status monitored within a specified time period (the default is the last hour) can be used as the device status of the Bluetooth terminal.

[0026] In some embodiments, reference Figure 2As mentioned above, this figure is a diagram of the basic communication modes of the Internet of Vehicles shown in some embodiments of the present application, including V2I (Vehicle-to-Infrastructure), V2N (Vehicle-to-Network), V2V (Vehicle-to-Vehicle) and V2P (Vehicle-to-Pedestrian). These modes together constitute the core of the Internet of Vehicles (V2X), which realizes effective information exchange between vehicles and the surrounding environment through different communication technologies to improve traffic safety, efficiency and intelligence.

[0027] V2I allows vehicles to exchange data with infrastructure such as traffic lights and surveillance cameras, supporting real-time information services, vehicle monitoring and management, and other functions. V2N involves the connection of vehicles to remote servers or cloud platforms through cellular networks to achieve vehicle navigation, remote monitoring, and infotainment services. V2V exchanges key information such as vehicle speed and location through direct communication between vehicles to reduce traffic accidents and improve driving efficiency. V2P focuses on communication between vehicles and pedestrians, especially vulnerable traffic groups such as pedestrians and cyclists, who communicate with vehicle-mounted devices through user devices to avoid traffic accidents.

[0028] The Internet of Vehicles communication mode also includes two technologies: cellular communication and direct communication. The cellular communication interface supports communication based on the 4G / 5G frequency band and is suitable for latency-insensitive services, while the direct communication interface is based on a dedicated frequency band and supports low-latency, high-reliability road safety services such as V2V, V2I, and V2P. The two modes complement each other and achieve high reliability and continuous communication of Internet of Vehicles services by reasonably allocating system loads.

[0029] In summary, the communication modes in the above figure are the basis for the diversified application needs of the Internet of Vehicles. Through the integration of the vehicle network, the vehicle-to-vehicle network and the vehicle-to-cloud network, they achieve seamless connection between V2X communications, improve communication efficiency, reduce communication blind spots, and provide strong technical support for building a smart transportation system.

[0030] In step 102, the state characteristics of the Bluetooth terminal are extracted from the device state, and the state information of the Bluetooth terminal in the vehicle is generated according to the state characteristics and the signal characteristics of the Bluetooth terminal in the silent state. The response reliability of the Bluetooth terminal to the Bluetooth activation instruction is determined by the state information and the signal transmission characteristics of the Bluetooth terminal in the communication interaction state.

[0031] In some embodiments, extracting the state characteristics of the Bluetooth terminal from the device state may be achieved by using the following steps: Determine all key functional components in the Bluetooth terminal, and then obtain functional indicator information of each key functional component in the Bluetooth terminal from the device status; Extracting functional index characteristics of each key functional component in the Bluetooth terminal from each functional index information; Determine the status characteristics of the Bluetooth terminal based on all functional indicator characteristics.

[0032] It should be noted that in this application, the status characteristics represent the main functional components in the Bluetooth terminal that interact with the Internet of Vehicles device; key functional components refer to the hardware and software components in the Bluetooth terminal that play a key role in its overall performance, usually including Bluetooth modules, batteries, communication processors, memory, etc.; functional indicator information functional indicator information refers to the performance data or status information of each key functional component of the Bluetooth terminal during operation, such as signal strength, battery power, throughput, etc., reflecting the device's operating capabilities and health status; functional indicator characteristics are characteristics used to characterize the performance of key functional component devices.

[0033] In the specific implementation, first, all key functional components in the Bluetooth terminal can be obtained from the central control network of the Internet of Vehicles. For each key functional component in the Bluetooth terminal, the state value corresponding to the key functional component is obtained from each state data in the device state as the functional indicator. The collection of all functional indicators can be used as the functional indicator information of the key functional component. The functional indicator information of each key functional component in the Bluetooth terminal can be obtained in the above manner; then, for each key functional component in the Bluetooth terminal, the functional indicator information of the key functional component is obtained, and the functional indicator information is extracted using an exponential smoothing method (for example, the Holt-Winters method). The result of the feature extraction can be used as the functional indicator feature of the key functional component. The functional indicator feature of each key functional component in the Bluetooth terminal can be obtained in the above manner; finally, the collection of all functional indicator features can be used as the state feature of the Bluetooth terminal.

[0034] In some embodiments, generating the status information of the Bluetooth terminal in the vehicle according to the status characteristics and the signal characteristics of the Bluetooth terminal in the silent state can be implemented by the following steps: Obtain signal characteristics of the Bluetooth terminal in silent state; Performing feature fusion on the signal feature of the Bluetooth terminal in the silent state and the state feature to obtain the device response feature; The state information of the Bluetooth terminal in the vehicle is generated by using a finite state machine in combination with the device response characteristics.

[0035] It should be noted that in this application, status information refers to the behavioral output of the Internet of Vehicles device in response to external signals, instructions or environmental changes under specific conditions; the signal characteristics of the Bluetooth terminal in silent state reflect the state of the Bluetooth terminal when there is no data interaction; the device response characteristics are used to describe the current state of the Internet of Vehicles device and its ability to respond to external instructions.

[0036] In specific implementation, first, the signal characteristics of the Bluetooth terminal in the vehicle in the silent state can be obtained from the central control network of the Internet of Vehicles; then, a Bayesian fusion model based on the decision level is initialized, and the signal characteristics of the Bluetooth terminal in the silent state are used as the characteristics of the fusion event in the Bayesian fusion model, and the state characteristics are used as the characteristics of the update event in the Bayesian fusion model. The Bayesian fusion model is used to fuse the signal characteristics of the Bluetooth terminal in the silent state and the state characteristics into the device response characteristics; finally, the device response characteristics can be modeled as a finite state machine, and the conditions for the Bluetooth terminal to switch between different states can be obtained from the central control network of the Internet of Vehicles as the state transition rules of the finite state machine. The state transition rule is that when the state characteristics meet the switching conditions, the finite state machine transfers to the response state, and the output of the finite state machine can be used as the state information of the Bluetooth terminal in the vehicle.

[0037] It should be noted that the Bayesian fusion model is a method for fusing results from multiple models or data sources through Bayesian reasoning. The Bayesian fusion model uses the Bayesian theorem in probability theory to calculate the final output by treating the data features of multiple data sources as conditional probabilities and combining prior knowledge; a finite state machine is a mathematical model used to represent different states of a system and state transition rules under different inputs. In this application, a finite state machine is used to describe and control the response behavior of a device in different states. By dynamically adjusting the device state through a finite state machine, the portability of the terminal and the response speed of the system can be improved while minimizing energy consumption.

[0038] In some embodiments, determining the response reliability of the Bluetooth terminal to the Bluetooth activation instruction by using the state information and the signal transmission characteristics of the Bluetooth terminal in the communication interaction state can be implemented by the following steps: Obtain the signal transmission characteristics of the Bluetooth terminal in the communication interaction state; Simulating the response delay of the Bluetooth terminal to the Bluetooth activation instruction based on the state information and the signal transmission characteristics to obtain all response delays; The response reliability of the Bluetooth terminal to the Bluetooth activation instruction is determined according to all response delays.

[0039] It should be noted that, in the present application, response reliability is a collection of response delays, which reflects the reaction characteristics of the Internet of Vehicles device after receiving the Bluetooth activation command; signal transmission characteristics refer to the signal quality parameters exhibited by the Bluetooth terminal in the communication state; state response refers to the instant feedback behavior of the Bluetooth terminal to the Bluetooth activation command, which can reflect the sensitivity and response speed of the Bluetooth terminal to the Bluetooth activation command in the current state; response delay refers to the delay time of the Bluetooth terminal after receiving the Bluetooth activation command.

[0040] In the specific implementation, first, when the Bluetooth terminal switches to the communication interaction state, the signal strength, frequency stability and noise interference of the Bluetooth terminal can be recorded by the data acquisition module of the Bluetooth terminal, and the set of signal strength, frequency stability and noise interference can be used as the signal transmission characteristics of the Bluetooth terminal in the communication interaction state; secondly, a response curve model based on a finite state machine is initialized, the signal transmission characteristics can be used as the input signal characteristics of the response curve model, and the state information can be used as the system state of the response curve model. The response curve model is used to simulate the response delay of the Bluetooth activation instruction in the current environment, thereby obtaining all the response delays of the Bluetooth activation instruction in the simulation; finally, the set of all response delays is used as the response reliability.

[0041] In step 103, the interaction confidence of each pairing request signal is determined according to the time domain characteristics of each pairing request signal and the response reliability, and then the valid pairing request signal is screened out from all the pairing request signals according to the interaction confidence.

[0042] In some embodiments, the interaction confidence of each pairing request signal is determined according to the time domain characteristics of each pairing request signal and the response reliability, referring to Figure 3 As described above, the figure is a schematic diagram of a process for determining the interaction confidence in some embodiments of the present application. In this embodiment, the interaction confidence can be determined by the following steps: In step 1031, for each pairing request signal, a time domain feature is extracted from the pairing request signal, and then an information entropy of the time domain feature is determined as the mutual information entropy; In step 1032, the information entropy of the response reliability is determined as the response information entropy; In step 1033, the interaction information entropy and the response information entropy are matched to obtain the interaction confidence of the pairing request signal, and then obtain the interaction confidence of each pairing request signal.

[0043] It should be noted that, in the present application, the time domain feature represents the characteristics of the pairing request signal in the time dimension; the mutual information entropy represents the uncertainty of the signal strength of the pairing request signal in the time dimension; in specific implementation, the time domain feature is extracted from the pairing request signal, and then the information entropy of the time domain feature is determined as the mutual information entropy, which can be implemented in the following way, namely: the time domain feature extraction algorithm can be used to extract the time domain feature in the pairing request signal as the time domain feature, wherein the time domain feature contains multiple feature values, each feature value represents the performance value of the signal strength in the pairing request signal in the time dimension, and the information entropy algorithm can be used to calculate the information entropy of all feature values ​​in the time domain feature as the mutual information.

[0044] In specific implementation, the information entropy of the response reliability can be determined as the response information entropy in the following manner, namely: the information entropy algorithm can be used to calculate the information entropy of all values ​​in the response reliability as the response information entropy; it should be noted that, in the present application, the response information entropy represents the uncertainty of the response behavior of the Internet of Vehicles device after receiving the Bluetooth activation command.

[0045] It should be noted that, in the present application, the interaction confidence is an indicator used to quantify the trust level of the pairing request signal in the process of interacting with the Internet of Vehicles. The higher the interaction confidence, the more the pairing request signal meets the interaction requirements of the Internet of Vehicles for trusted signatures. In specific implementation, the interaction information entropy and the response information entropy are matched to obtain the interaction confidence of the pairing request signal. This can be achieved in the following way, namely: the information interaction mechanism can be used to measure the information similarity of the interaction information entropy and the response information entropy, that is, the cosine similarity between the interaction information entropy and the response information entropy can be used as the interaction confidence of the pairing request signal, wherein the information interaction mechanism refers to the calculation, analysis and matching of time domain characteristics and response reliability to ensure the effective interaction and matching process of communication signals and device responses.

[0046] In some embodiments, filtering out valid pairing request signals from all pairing request signals by using various interaction confidences may be implemented by the following steps: Obtain the confidence threshold of the Bluetooth terminal in the communication interaction state; Valid pairing request signals are screened out from all pairing request signals based on the confidence threshold and each interaction confidence.

[0047] It should be noted that, in the present application, a valid pairing request signal refers to a request signal that has been verified to meet the pairing requirements and has the necessary signal characteristics in Bluetooth pairing; in specific implementation, first, a large number of signal reception simulation experiments can be carried out to obtain a large number of pairing request signals that can be successfully received as valid signals, and the interaction confidence of the valid signals is calculated. The mean of all interaction confidences can be used as the confidence threshold, which is a standard value used to distinguish valid signals from invalid signals; then, when the interaction confidence exceeds the confidence threshold, the pairing request signal is considered to be a valid pairing request signal that meets the requirements, otherwise it will be regarded as an invalid signal, and the Bluetooth terminal continues to maintain the communication interaction state.

[0048] In step 104, the device terminal corresponding to the valid pairing request signal is used as the target device terminal, and a trusted signature of the Bluetooth terminal to the target device terminal is generated through the signal attribute of the valid pairing request signal, and then the target device terminal is paired with the Bluetooth terminal based on the trusted signature.

[0049] In some embodiments, generating a trusted signature of the Bluetooth terminal to the target device terminal through the signal attribute of the valid pairing request signal can be implemented by the following steps: Extracting valid signal attributes from the valid pairing request signal, and then mapping the signal attributes to terminal response features of the signal in the Bluetooth terminal; A trusted signature of the Bluetooth terminal to the target device terminal is generated based on the terminal response characteristics.

[0050] It should be noted that in this application, a trusted signature is a unique digital signature used to ensure the authenticity of the signal and pairing request; a valid signal attribute refers to the signal attribute of a valid pairing request signal; and a terminal response feature refers to the form in which the Bluetooth terminal responds to the signal.

[0051] In the specific implementation, first, the signal attribute of the pairing request signal corresponding to the valid pairing request signal is taken as the valid signal attribute, and the signal attribute can be mapped to the terminal response feature of the signal in the Bluetooth terminal using a feature mapping algorithm (for example: kernel mapping algorithm); then, the terminal response feature can be hashed and encrypted using a hash function as a trusted signature of the Bluetooth terminal to the target device terminal.

[0052] It should be noted that the kernel mapping algorithm in the feature mapping algorithm maps data from low-dimensional space to high-dimensional space by using kernel functions, so as to find decision boundaries in high-dimensional space that are easier to classify or regress. The kernel mapping algorithm has automatic and accurate signal processing capabilities, can adapt to dynamic and complex signal environments, and optimize the energy consumption of terminals, and improve the reliability and real-time performance of the interaction of Internet of Vehicles devices. In addition, it reduces the dependence on artificial feature design, enhances the flexibility and scalability of the Internet of Vehicles, and can not only improve the interaction confidence and accuracy, but also improve the robustness and communication efficiency of the Internet of Vehicles.

[0053] In some embodiments, the target device terminal is paired with the Bluetooth terminal based on the trusted signature. In specific implementation, after the target device terminal receives the trusted signature, it uses the private key in the trusted signature to send an encrypted Bluetooth pairing request to the Bluetooth terminal. After the Bluetooth terminal receives the Bluetooth pairing request, it uses the public key in the trusted signature to verify the connection request of the Bluetooth pairing request. After the verification is passed, the Bluetooth terminal and the target device terminal can officially enter the pairing state and complete the pairing process.

[0054] It should be noted that switching the Bluetooth terminal to a silent state can significantly reduce the power consumption of the Bluetooth terminal, extend the battery life of the device, and improve the overall energy efficiency of the system. At the same time, the rapid switching between the silent state and the communication interaction state of the Bluetooth terminal ensures that the Bluetooth terminal can respond in real time and optimize communication efficiency and reduce delays. It not only improves the portability and real-time performance of the Bluetooth terminal, but also enhances the flexibility and stability of the Bluetooth terminal, meeting the needs of low power consumption and efficient interaction in the Internet of Vehicles.

[0055] In the present application, a trusted signature of the Bluetooth terminal for the target device terminal is generated by the signal attributes of the effective pairing request signal, and then the target device terminal is paired with the Bluetooth terminal based on the trusted signature; first, the response reliability is determined to obtain the reaction characteristics of the Internet of Vehicles device after receiving the Bluetooth activation command. The Internet of Vehicles environment is complex, and the signal is often interfered or blocked, resulting in a response delay or failure of the Bluetooth terminal pairing signal. By real-time monitoring of the signal characteristics of the Bluetooth terminal and combining the device status information, the Internet of Vehicles can evaluate its response strength and consistency, identify and eliminate low-quality signal responses, thereby improving the signal response stability of the device terminal and the Bluetooth terminal in the Internet of Vehicles, thereby effectively reducing retries and pairing failures, and improving the pairing efficiency and success rate; then, determine The interaction confidence can obtain the matching degree between the pairing request signal and the response reliability of the Bluetooth activation command. By calculating the interaction confidence of the pairing request signal, the Internet of Vehicles can screen out valid pairing request signals. In the Internet of Vehicles environment, the signal quality differences of the device terminals will affect the pairing success rate. By analyzing the time domain characteristics of the pairing signal in the device terminal and the response reliability of the Bluetooth terminal, the Internet of Vehicles can filter out invalid signals, thereby effectively avoiding conflicting requests and failed pairings, facilitating the improvement of the success rate and efficiency of Bluetooth pairing, and at the same time enhancing the security of the Internet of Vehicles and preventing illegal devices from accessing the Internet of Vehicles. In summary, based on the above scheme, dynamic response pairing of Bluetooth signals between device terminals and vehicle Bluetooth terminals in the Internet of Vehicles can be realized, thereby improving the Bluetooth pairing efficiency in the Internet of Vehicles.

[0056] In addition, in another aspect of the present application, in some embodiments, the present application provides a vehicle networking device control system, the vehicle networking device control system includes a Bluetooth terminal interaction unit, reference Figure 4 , which is a schematic diagram of the structure of a Bluetooth terminal interaction unit according to some embodiments of the present application, the Bluetooth terminal interaction unit includes: a monitoring module 201, a processing module 202 and an execution module 203, which are described as follows: Monitoring module 201, in this application, monitoring module 201 is mainly used for switching the Bluetooth terminal from a silent state to a communication interaction state when the Bluetooth terminal in the vehicle receives a Bluetooth activation instruction from the Internet of Vehicles, real-time monitoring of the pairing request signals received by the Bluetooth terminal from each device terminal in the communication interaction state, and obtaining the device state of the Bluetooth terminal in the silent state; The processing module 202 in the present application is used to extract the state characteristics of the Bluetooth terminal from the device state, generate the state information of the Bluetooth terminal in the vehicle according to the state characteristics and the signal characteristics of the Bluetooth terminal in the silent state, and determine the response reliability of the Bluetooth terminal to the Bluetooth activation instruction through the state information and the signal transmission characteristics of the Bluetooth terminal in the communication interaction state; It should be noted that the processing module 202 is further used to determine the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability, and then filter out the valid pairing request signal from all the pairing request signals according to each interaction confidence; Execution module 203. In the present application, execution module 203 is mainly used to take the device terminal corresponding to the valid pairing request signal as the target device terminal, generate a trusted signature of the Bluetooth terminal for the target device terminal through the signal attributes of the valid pairing request signal, and then perform Bluetooth pairing between the target device terminal and the Bluetooth terminal based on the trusted signature.

[0057] The above describes in detail the examples of the vehicle networking equipment control system and method provided by the embodiments of the present application. It can be understood that in order to realize the above functions, the corresponding device includes hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0058] In some embodiments, the present application also provides a computer device, which includes a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the above-mentioned Bluetooth terminal interaction method of the Internet of Vehicles device.

[0059] In some embodiments, reference Figure 5 , the dotted line in the figure indicates that the unit or the module is optional, and the figure is a structural diagram of a computer device for implementing a Bluetooth terminal interaction method for a vehicle networking device according to an embodiment of the present application. The Bluetooth terminal interaction method for a vehicle networking device described in the above embodiment can be Figure 5 The computer device shown in the figure is implemented, and the computer device includes at least one processor 301, a memory 302 and at least one communication unit 305. The computer device can be a terminal device, a server or a chip.

[0060] The processor 301 may be a general-purpose processor or a special-purpose processor. For example, the processor 301 may be a central processing unit (CPU), which may be used to control the computer device, execute software programs, and process data of the software programs. The computer device may also include a communication unit 305 to implement signal input (reception) and output (transmission).

[0061] For example, the computer device may be a chip, the communication unit 305 may be an input and / or output circuit of the chip, or the communication unit 305 may be a communication interface of the chip, and the chip may be a component of a terminal device, a network device, or other devices.

[0062] For another example, the computer device may be a terminal device or a server, and the communication unit 305 may be a transceiver of the terminal device or the server, or the communication unit 305 may be a transceiver circuit of the terminal device or the server.

[0063] The computer device may include one or more memories 302, on which a program 304 is stored. The program 304 can be executed by the processor 301 to generate instructions 303, so that the processor 301 performs the method described in the above method embodiment according to the instructions 303. Optionally, data (such as a target audit model) can also be stored in the memory 302. Optionally, the processor 301 can also read the data stored in the memory 302, and the data can be stored at the same storage address as the program 304, or the data can be stored at a different storage address from the program 304.

[0064] The processor 301 and the memory 302 may be provided separately or integrated together, for example, integrated on a system on chip (SOC) of the terminal device.

[0065] It should be understood that each step of the above method embodiment can be completed by a hardware-based logic circuit or software-based instructions in the processor 301. The processor 301 can be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, such as discrete gates, transistor logic devices, or discrete hardware components.

[0066] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0067] For example, in some embodiments, the present application also provides a computer-readable storage medium, which stores instructions or codes. When the instructions or codes are executed on a computer, the computer implements the above-mentioned Bluetooth terminal interaction method of the Internet of Vehicles device when executing.

[0068] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0069] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A Bluetooth terminal interaction method for a vehicle networking device, used for pairing and controlling a Bluetooth terminal in the vehicle networking device, characterized in that: The steps include: When the Bluetooth terminal in the vehicle receives the Bluetooth activation command from the Internet of Vehicles, the Bluetooth terminal switches from the silent state to the communication interaction state, monitors in real time the pairing request signals received by the Bluetooth terminal from each device terminal in the communication interaction state, and obtains the device state of the Bluetooth terminal in the silent state; Extracting the state characteristics of the Bluetooth terminal from the device state, generating the state information of the Bluetooth terminal in the vehicle according to the state characteristics and the signal characteristics of the Bluetooth terminal in the silent state, and determining the response reliability of the Bluetooth terminal to the Bluetooth activation instruction according to the state information and the signal transmission characteristics of the Bluetooth terminal in the communication interaction state; determining the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability, and then screening out valid pairing request signals from all pairing request signals according to each interaction confidence; The device terminal corresponding to the valid pairing request signal is used as the target device terminal, and a trusted signature of the Bluetooth terminal for the target device terminal is generated through the signal attribute of the valid pairing request signal, and then the target device terminal is paired with the Bluetooth terminal based on the trusted signature.

2. The method according to claim 1, characterized in that Extracting the state characteristics of the Bluetooth terminal from the device state specifically includes: Determine all key functional components in the Bluetooth terminal, and then obtain functional indicator information of each key functional component in the Bluetooth terminal from the device status; Extracting functional index characteristics of each key functional component in the Bluetooth terminal from each functional index information; Determine the status characteristics of the Bluetooth terminal based on all functional indicator characteristics.

3. The method according to claim 1, characterized in that Generating the status information of the Bluetooth terminal in the vehicle according to the status characteristics and the signal characteristics of the Bluetooth terminal in the silent state specifically includes: Obtain signal characteristics of the Bluetooth terminal in silent state; Performing feature fusion on the signal feature of the Bluetooth terminal in the silent state and the state feature to obtain the device response feature; The state information of the Bluetooth terminal in the vehicle is generated by using a finite state machine in combination with the device response characteristics.

4. The method according to claim 1, characterized in that Determining the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability specifically includes: For each pairing request signal, extracting a time domain feature from the pairing request signal, and then determining an information entropy of the time domain feature as the mutual information entropy; Determine the information entropy of the response reliability as the response information entropy; The interaction information entropy and the response information entropy are matched to obtain the interaction confidence of the pairing request signal, and then obtain the interaction confidence of each pairing request signal.

5. The method according to claim 1, characterized in that Generating a trusted signature of the Bluetooth terminal to the target device terminal through the signal attribute of the valid pairing request signal specifically includes: Extracting valid signal attributes from the valid pairing request signal, and then mapping the signal attributes to terminal response features of the signal in the Bluetooth terminal; A trusted signature of the Bluetooth terminal to the target device terminal is generated based on the terminal response characteristics.

6. The method according to claim 1, characterized in that The silent state is a low power consumption mode in which no communication signal is actively sent or received.

7. The method according to claim 1, characterized in that The communication interaction state is a high power consumption mode for actively performing communication signal interaction.

8. A vehicle networking equipment control system, the vehicle networking equipment control system includes a Bluetooth terminal interaction unit, characterized in that: The Bluetooth terminal interaction unit comprises: The monitoring module is used to switch the Bluetooth terminal from the silent state to the communication interaction state when the Bluetooth terminal in the vehicle receives the Bluetooth activation command of the Internet of Vehicles, monitor in real time the pairing request signals received by the Bluetooth terminal from each device terminal in the communication interaction state, and obtain the device state of the Bluetooth terminal in the silent state; a processing module, configured to extract a state feature of the Bluetooth terminal from the device state, generate state information of the Bluetooth terminal in the vehicle according to the state feature and a signal feature of the Bluetooth terminal in a silent state, and determine the response reliability of the Bluetooth terminal to the Bluetooth activation instruction according to the state information and a signal transmission feature of the Bluetooth terminal in a communication interaction state; The processing module is further used to determine the interaction confidence of each pairing request signal according to the time domain characteristics of each pairing request signal and the response reliability, and then filter out the valid pairing request signal from all the pairing request signals according to each interaction confidence; The execution module is used to take the device terminal corresponding to the valid pairing request signal as the target device terminal, generate a trusted signature of the Bluetooth terminal for the target device terminal through the signal attribute of the valid pairing request signal, and then perform Bluetooth pairing between the target device terminal and the Bluetooth terminal based on the trusted signature.

9. A computer device, characterized in that: The computer device includes a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the Bluetooth terminal interaction method of the Internet of Vehicles device according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions or codes, and when the instructions or codes are executed on a computer, the computer implements the Bluetooth terminal interaction method of a vehicle networking device according to any one of claims 1 to 7.

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