Vehicle-mounted communication data loss prevention method and device, equipment and storage medium

Abstract

The invention discloses a vehicle-mounted communication data loss prevention method, device and equipment and a storage medium, and relates to the technical field of vehicle-mounted communication, and the method comprises the steps: obtaining the power supply voltage of a power supply unit, the communication information between a data processing unit and a communication processing unit, and the signal strength of an external antenna; determining the state of a current redundancy protection strategy according to the power supply voltage, the communication information and the signal strength; and according to the state of the redundancy protection strategy, a corresponding device unit is switched to prevent vehicle-mounted communication data from being lost, and the device unit comprises a redundancy power supply unit, a first communication line and a built-in antenna. According to the vehicle-mounted communication system and the vehicle-mounted communication method, multiple redundancy designs for protecting the vehicle-mounted communication and corresponding control processes are added, so that the defects of the existing vehicle-mounted communication in the aspects of data processing, communication stability, safety protection and the like are effectively overcome, and the stability and safety protection capability of the vehicle-mounted communication data are improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle-mounted communications, and in particular to a method, device, equipment and storage medium for preventing vehicle-mounted communication data from being lost. Background Art

[0002] With the rapid development of the automotive industry, especially the continuous advancement of intelligent and networked technologies, the demand for communication between vehicles and the outside world is growing. As a key device for communication between vehicles and the outside world, T-box (Telematics Box, intelligent communication terminal) plays an important bridge role. However, the existing T-box technology has obvious deficiencies in data processing capabilities, communication stability, and security protection, and it is difficult to meet the market's urgent demand for efficient, stable, and secure communications.

[0003] In terms of data processing capabilities, as the degree of vehicle intelligence increases, the amount of data that needs to be transmitted and processed increases dramatically, while the data processing speed and processing capacity of traditional T-boxes are relatively limited, making it difficult to cope with the demand for efficient processing under large amounts of data. This may cause data delays, loss or processing errors, which in turn affects the intelligent functions and driving experience of the vehicle. In terms of communication stability, due to the complexity and variability of the vehicle driving environment, such as signal interference and incomplete network coverage, traditional T-boxes are prone to problems such as signal interruption or data loss during communication. This will not only affect the information interaction between the vehicle and the outside world, but may also pose a potential threat to the safe driving of the vehicle. In terms of security protection, with the continuous escalation of network security threats, the security protection capabilities of vehicle communication systems are also facing severe challenges. Traditional T-boxes have loopholes in security protection design and are easily attacked by hackers or invaded by malware, resulting in data leakage or tampering, which in turn causes vehicle safety hazards.

[0004] Therefore, how to improve the stability and security protection capabilities of vehicle-mounted communication data is a problem that needs to be solved urgently. Summary of the invention

[0005] The main purpose of this application is to provide a method, device, equipment and storage medium for preventing vehicle communication data from being lost, aiming to solve the technical problem of how to improve the stability and security protection capabilities of vehicle communication data.

[0006] To achieve the above objectives, the present application proposes a method for preventing vehicle communication data from being lost, the method comprising:

[0007] Acquiring the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna;

[0008] Determine the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength;

[0009] The corresponding device unit is switched according to the state of the redundant protection strategy to prevent the loss of vehicle communication data, and the device unit includes a redundant power supply unit, a first communication line and a built-in antenna.

[0010] In one embodiment, the step of determining the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength includes:

[0011] Determine the state of the power supply protection strategy in the current redundant protection strategy according to the power supply voltage;

[0012] Determine the state of the communication protection strategy in the current redundant protection strategy according to the communication information;

[0013] The state of the communication protection strategy in the current redundant protection strategy is determined according to the signal strength.

[0014] In one embodiment, the step of determining the state of the communication protection strategy in the current redundancy protection strategy according to the communication information includes:

[0015] Obtaining first communication information and second communication information according to the communication information, wherein the first communication information and the second communication information correspond to different communication lines;

[0016] When fault information exists in the first communication information or the second communication information, it is determined that the state of the communication protection strategy in the current redundancy protection strategy is an activated state.

[0017] In one embodiment, the step of determining the state of the power supply protection strategy in the current redundant protection strategy according to the power supply voltage includes:

[0018] Acquiring a threshold voltage of the power supply unit;

[0019] When the power supply voltage is less than the threshold voltage, it is determined that the state of the power supply protection strategy in the current redundant protection strategy is an activated state.

[0020] In one embodiment, the step of determining the state of the communication protection strategy in the current redundancy protection strategy according to the signal strength includes:

[0021] Obtaining a standard signal strength of the external antenna;

[0022] When the signal strength is less than the standard signal strength, it is determined that the state of the communication protection strategy in the current redundant protection strategy is an activated state.

[0023] In one embodiment, after the step of switching the corresponding device unit according to the state of the redundant protection strategy, the method further includes:

[0024] When the communication processing unit is in an abnormal state, and the abnormal state is a circuit abnormal state, uploading the communication data of the vehicle to a backup controller in the cloud for backup;

[0025] When the communication processing unit is in an abnormal state, and the abnormal state is a network abnormal state, the communication data of the vehicle is stored in a local backup controller for backup.

[0026] In one embodiment, the state of the redundant protection strategy includes the states of the power supply protection strategy, the information protection strategy, and the communication protection strategy, and the step of switching the corresponding device unit according to the state of the redundant protection strategy includes:

[0027] When the power supply protection strategy is in an activated state, switching the current power supply unit to the redundant power supply unit for power supply;

[0028] When the state of the information protection policy is an activated state, switching the communication line from the current communication line to the first communication line for communication, the communication line includes the current communication line and the first communication line;

[0029] When the communication protection strategy is in an activated state, the external antenna is turned off and the internal antenna is enabled for communication transmission.

[0030] In addition, to achieve the above purpose, the present application also proposes a vehicle-mounted communication data loss prevention device, the device comprising:

[0031] An information acquisition module, used to acquire the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna;

[0032] An information processing module, used to determine the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength;

[0033] The redundant protection module is used to switch the corresponding equipment unit according to the state of the redundant protection strategy to prevent the loss of vehicle communication data. The equipment unit includes a redundant power supply unit, a first communication line and a built-in antenna.

[0034] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle-mounted communication data anti-loss device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the vehicle-mounted communication data anti-loss method as described above.

[0035] 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 vehicle-mounted communication data anti-loss method as described above are implemented.

[0036] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, it implements the steps of the vehicle communication data anti-loss method as described above.

[0037] The present application provides a method for preventing vehicle communication data from being lost, and the method of the present application includes: obtaining the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna; determining the state of the current redundant protection strategy according to the power supply voltage, the communication information, and the signal strength; switching the corresponding device unit according to the state of the redundant protection strategy to prevent the loss of vehicle communication data, and the device unit includes a redundant power supply unit, a first communication line, and a built-in antenna. In summary, the present application effectively solves the deficiencies of existing vehicle communications in data processing, communication stability, and security protection by real-time monitoring of the power supply voltage and starting the redundant power supply unit, designing multiple communication links to ensure the reliability of data transmission, adopting a redundant design of built-in and external antennas to improve the stability of wireless communications, and setting up a backup controller to store important data, thereby improving the stability and security protection capabilities of vehicle communication data. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 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.

[0039] 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 A flowchart of the first embodiment of the vehicle communication data loss prevention method provided by the present application;

[0041] Figure 2 A flowchart of the second embodiment of the vehicle communication data loss prevention method provided by the present application;

[0042] Figure 3A flowchart diagram of the third embodiment of the vehicle communication data loss prevention method of the present application;

[0043] Figure 4 A schematic diagram of the system architecture of the vehicle communication data loss prevention method of the present application;

[0044] Figure 5 This is a schematic diagram of the module structure of the vehicle communication data anti-loss device according to an embodiment of the present application;

[0045] Figure 6 This is a schematic diagram of the device structure of the hardware operating environment involved in the vehicle communication data loss prevention method in the embodiment of the present application.

[0046] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0048] 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.

[0049] The main solution of the embodiment of the present application is: obtaining the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna; determining the status of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength; switching the corresponding device unit according to the status of the redundant protection strategy to prevent the loss of vehicle-mounted communication data, the device unit including a redundant power supply unit, a first communication line and a built-in antenna.

[0050] With the rapid development of the automotive industry, especially the continuous advancement of intelligent and networked technologies, the demand for communication between vehicles and the outside world is growing. As a key device for communication between vehicles and the outside world, T-box (Telematics Box, intelligent communication terminal) plays an important bridge role. However, the existing T-box technology has obvious deficiencies in data processing capabilities, communication stability, and security protection, and it is difficult to meet the market's urgent demand for efficient, stable, and secure communications.

[0051] In terms of data processing capabilities, as the degree of vehicle intelligence increases, the amount of data that needs to be transmitted and processed increases dramatically, while the data processing speed and processing capacity of traditional T-boxes are relatively limited, making it difficult to cope with the demand for efficient processing under large amounts of data. This may cause data delays, loss or processing errors, which in turn affects the intelligent functions and driving experience of the vehicle. In terms of communication stability, due to the complexity and variability of the vehicle driving environment, such as signal interference and incomplete network coverage, traditional T-boxes are prone to signal interruption or data loss during communication. This will not only affect the information interaction between the vehicle and the outside world, but may also pose a potential threat to the safe driving of the vehicle. In terms of security protection, with the continuous escalation of network security threats, the security protection capabilities of vehicle communication systems are also facing severe challenges. Traditional T-boxes have loopholes in security protection design and are easily hacked or invaded by malware, resulting in data leakage or tampering, which in turn causes vehicle safety hazards. Therefore, how to improve the stability and security protection capabilities of vehicle-mounted communication data is a problem that needs to be solved urgently.

[0052] This application effectively solves the deficiencies of existing vehicle-mounted communications in data processing, communication stability and security protection by monitoring the power supply voltage in real time and starting redundant power supply units, designing multiple communication links to ensure the reliability of data transmission, adopting internal and external antenna redundant designs to improve the stability of wireless communications, and setting up backup controllers to store important data, thereby improving the stability and security protection capabilities of vehicle-mounted communication data.

[0053] It should be noted that the execution subject of this embodiment can be a vehicle-mounted communication data loss prevention system, or a computing service device with data processing, network communication and program running functions, or an electronic device capable of realizing the above-mentioned vehicle-mounted communication data loss prevention function, etc., and this embodiment does not specifically limit this. The vehicle-mounted communication data loss prevention system is taken as an example to illustrate this embodiment and the following embodiments.

[0054] Based on this, the embodiment of the present application provides a method for preventing vehicle communication data from being lost, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the vehicle communication data loss prevention method of the present application.

[0055] In this embodiment, the vehicle communication data loss prevention method includes steps S10 to S30:

[0056] Step S10: Acquire the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna.

[0057] It should be noted that in this step, the system will collect the power supply voltage of the power supply unit in real time through the built-in voltage detection module of the controller to ensure that the current voltage status of the power supply unit can be accurately obtained. At the same time, the communication information between the data processing unit and the communication processing unit interacts through multiple hardware links, and the communication information of these multiple links is monitored in real time to ensure the accuracy and integrity of the data. In addition, the system will also continuously detect the signal strength of the external antenna to determine whether its communication performance meets the current needs.

[0058] In addition, it should be noted that the power supply voltage refers to the stable voltage value provided by the power supply unit to the controller, which is used to help the system ensure the normal operation of the communication equipment. Communication information refers to the data content exchanged between the data processing unit and the communication processing unit. Its accuracy and integrity are crucial to the stable operation of the vehicle communication system. Signal strength refers to the ability of the external antenna to receive and transmit signals, which can help the system determine the communication performance of the current antenna.

[0059] Step S20: determining the state of the current redundancy protection strategy according to the power supply voltage, the communication information and the signal strength.

[0060] It should be noted that in this step, the system will conduct a comprehensive analysis and judgment on the acquired power supply voltage, communication information and signal strength data to determine the current state of the redundant protection strategy. It can be understood that the redundant protection strategy refers to a series of processing solutions and countermeasures designed to prevent the loss of vehicle communication data. These strategies include power supply redundancy, communication redundancy and antenna redundancy, which can ensure the stable operation of the vehicle communication system and the safe transmission of data under specific circumstances. The state of the redundant protection strategy refers to the operating state of the current redundant protection strategies such as power supply redundancy, communication redundancy and antenna redundancy, including activation state and shutdown state.

[0061] Step S30: Switching corresponding equipment units according to the state of the redundant protection strategy to prevent loss of vehicle communication data, wherein the equipment units include a redundant power supply unit, a first communication line, and a built-in antenna.

[0062] It should be noted that in this step, when the system determines the redundant protection strategy state, the controller will automatically switch the corresponding device unit to ensure the normal transmission of the vehicle communication data. For example, if it is currently in a power supply redundant protection state, the system will switch to the redundant power supply unit to provide power for the vehicle communication. In addition, it should be noted that the device unit refers to a hardware component or module used to implement a specific function in the vehicle communication system. In this embodiment, the device unit includes a redundant power supply unit, a first communication line (i.e., an SPI communication link or a UART communication link), and a built-in antenna. It can be understood that these redundant device units can ensure the stable operation of the vehicle communication system and the safe transmission of data under various abnormal conditions.

[0063] In a feasible implementation manner, after step S30, the following steps are further included:

[0064] Step S40: When the communication processing unit is in an abnormal state, and the abnormal state is a circuit abnormal state, the communication data of the vehicle is uploaded to a backup controller in the cloud for backup.

[0065] It should be noted that in this step, when the communication processing unit has an abnormal circuit state, such as a hardware link failure, which makes it impossible to upload the vehicle information and status to the backup controller in the cloud (such as a cloud platform), the system will immediately start the data backup mechanism. At this time, the system will upload the vehicle's communication data to the backup controller in the cloud in real time for storage through communication methods such as Ethernet. It can be understood that the purpose of this step is to ensure that when a serious failure occurs in the communication processing unit, the vehicle data can be backed up in time to prevent data loss. For example, when the communication processing unit of the vehicle is abnormal due to external interference or its own hardware failure, the system will immediately trigger the data backup process. At this time, all kinds of real-time information of the vehicle, such as position, speed, engine status and other key data, will be quickly uploaded to the backup controller in the cloud to ensure that these data can be fully obtained in subsequent analysis.

[0066] In addition, it should be noted that the cloud backup controller can be a remote data storage and management system, which has high reliability and high availability, and can ensure that vehicle data can be safely stored and quickly accessed under any circumstances.

[0067] Step S50: When the communication processing unit is in an abnormal state, and the abnormal state is a network abnormal state, the communication data of the vehicle is stored in a local backup controller for backup.

[0068] It should be noted that in this step, when the communication processing unit has a network abnormality, such as no network coverage or unstable network signal in the current environment, the system will store the vehicle's communication data in the local backup controller. It can be understood that the purpose of this step is to ensure that the vehicle data can still be properly preserved in the case of poor network environment or network interruption. For example, when the vehicle is traveling in an area with poor network signal such as a tunnel or underground parking lot, the communication processing unit may not be able to upload the vehicle data to the cloud platform in time. At this time, the system will immediately write the vehicle data to the local backup controller, such as a memory chip or another controller. After waiting for the vehicle to drive out of the area with poor network signal, upload these data to the cloud platform for further processing and analysis.

[0069] In addition, it should be noted that the local backup controller is a data storage device located inside the vehicle, which has the ability to quickly read and write and store data for a long time. When the communication processing unit encounters a network abnormality, the local backup controller can serve as a temporary backup of the data to ensure that the vehicle data will not be lost due to network problems. At the same time, the local backup controller can also synchronize with the cloud backup controller to ensure data integrity and consistency.

[0070] The present embodiment provides a method for preventing vehicle communication data from being lost, and the method of the present embodiment includes: obtaining the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna; determining the state of the current redundant protection strategy according to the power supply voltage, the communication information, and the signal strength; switching the corresponding device unit according to the state of the redundant protection strategy to prevent the loss of vehicle communication data, and the device unit includes a redundant power supply unit, a first communication line, and a built-in antenna. In summary, the present embodiment effectively solves the deficiencies of existing vehicle communication in data processing, communication stability, and security protection by real-time monitoring of the power supply voltage and starting the redundant power supply unit, designing multiple communication links to ensure the reliability of data transmission, adopting a redundant design of built-in and external antennas to improve the stability of wireless communication, and setting a backup controller to store important data, thereby improving the stability and security protection capabilities of vehicle communication data.

[0071] 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-mentioned embodiment 1 can refer to the above introduction, and will not be repeated later. Figure 2 , Figure 2 This is a flow chart of the second embodiment of the vehicle communication data loss prevention method of the present application, wherein step S20 specifically includes:

[0072] Step S201: determining a state of a power supply protection strategy in a current redundant protection strategy according to the power supply voltage.

[0073] It should be noted that in this step, the vehicle communication system includes a power supply unit, which is designed with a power supply unit and a redundant power supply unit. The system will collect the voltage of the power supply unit in real time during operation. When the voltage of the power supply unit is lower than the preset threshold, the system will start the power supply protection strategy in the current redundant protection strategy to activate it. In addition, it should be noted that the power supply protection strategy is a preventive measure designed to ensure that the vehicle communication system can still obtain a stable power supply in the event of abnormal power supply. The implementation of this strategy mainly depends on real-time monitoring of the power supply voltage.

[0074] In a feasible implementation manner, the step S201 specifically includes:

[0075] Step A10: Obtain the threshold voltage of the power supply unit.

[0076] It should be noted that the threshold voltage is a preset voltage threshold. This parameter is preset when the system is designed and stored in the system's non-volatile memory. When the system starts, the system will read the threshold voltage value for use in subsequent voltage monitoring. In addition, it should be noted that the setting of the threshold voltage is based on a comprehensive consideration of factors such as the performance of the power supply unit and the stability of vehicle communication, to ensure that the redundant power supply unit can be switched in time when the power supply is insufficient to avoid data loss during communication.

[0077] Step A20: When the power supply voltage is less than the threshold voltage, determine that the state of the power supply protection strategy in the current redundant protection strategy is an activated state.

[0078] It should be noted that when the controller detects that the power supply voltage is lower than the threshold voltage, it will immediately trigger the power supply protection strategy in the redundant protection strategy and switch the power supply state to the active state. That is, the redundant power supply unit will start to provide power for the vehicle communication to ensure the continuous operation of the system. It can be understood that the state of the power supply protection strategy is generally in the off state. Only when the power supply voltage is less than the threshold voltage (that is, when the power supply is insufficient), the system will activate the power supply protection strategy, that is, start the redundant power supply unit to replace the power supply unit for power supply.

[0079] Step S202: determining the state of the communication protection strategy in the current redundancy protection strategy according to the communication information.

[0080] It should be noted that in this step, the system designs two hardware communication links, such as SPI communication and UART communication. These two links are used for information exchange between the data processing unit and the communication processing unit. When a communication anomaly occurs in one of the links, the system will start the communication protection strategy in the current redundant protection strategy and activate it. In addition, it should be noted that the communication protection strategy is a measure to improve communication reliability and stability. The communication links can be two or more. By designing redundant communication links and automatically switching when one link is abnormal, the system can ensure the continuous transmission and integrity of data, thereby reducing the risk of communication failures.

[0081] In a feasible implementation manner, the step S202 specifically includes:

[0082] Step B10: obtaining first communication information and second communication information according to the communication information, wherein the first communication information and the second communication information correspond to different communication lines.

[0083] It should be noted that the vehicle communication system is designed to include at least two independent communication lines to ensure redundancy and reliability of data transmission. The two lines transmit the first communication information and the second communication information respectively. It can be understood that in this step, the first communication information and the second communication information respectively represent data transmitted on different physical or logical channels, and their contents should be consistent under ideal circumstances, but their respective transmission paths are different.

[0084] Step B20: When fault information exists in the first communication information or the second communication information, it is determined that the state of the communication protection strategy in the current redundancy protection strategy is an activated state.

[0085] It should be noted that in this step, the system will perform real-time detection on the first communication information and the second communication information, that is, the system will compare the contents of the first communication information and the second communication information to check whether there is a difference between them. If the contents of the two are inconsistent, or the data on one of the lines shows obvious fault characteristics (such as continuous data packet loss, verification errors, etc.), the system will determine that there is fault information. At this time, the system will immediately activate the communication protection strategy in the redundant protection strategy to ensure the continuity of data transmission. In addition, it should be noted that the fault information includes but is not limited to communication timeout, data verification error, data loss, etc.

[0086] It can be understood that the role of this step is to promptly detect and respond to failures in the communication link, and to ensure reliable data transmission by activating a redundant protection strategy, thereby improving the overall stability and reliability of the system.

[0087] Step S203: determining the state of the communication protection strategy in the current redundancy protection strategy according to the signal strength.

[0088] It should be noted that the vehicle communication system is designed with redundant antenna equipment, including internal and external antennas. The external antenna is connected to the controller through a wiring harness, but the wiring harness may be abnormal due to vibration or stress pulling during vehicle driving. At this time, the system will detect the signal strength of the external antenna and determine whether it meets the current communication needs. If the performance of the external antenna deteriorates or fails to work properly, the system will switch to the internal antenna for data transmission and reception.

[0089] In addition, it should be noted that the communication protection strategy is a measure to improve the stability and reliability of communication. By designing redundant antenna equipment and automatically switching when the external antenna is abnormal, the system can ensure that a stable communication connection can still be maintained in a complex environment.

[0090] In a feasible implementation manner, the step S203 specifically includes:

[0091] Step C10: Obtain the standard signal strength of the external antenna.

[0092] It should be noted that the process of obtaining the standard signal strength of the external antenna is to perform a performance test on the antenna when the system is initialized, and store the signal strength value obtained by the test as the standard signal strength in the memory of the controller. It can be understood that the role of this step is to ensure that the real-time signal strength can be compared with the standard signal strength in the future, so as to determine whether the current communication quality meets the requirements.

[0093] In addition, it should be noted that the standard signal strength is a dynamic value and may change according to factors such as the vehicle's use environment, antenna type, and age. Therefore, in actual applications, the system will periodically perform performance tests on the antenna and update the value of the standard signal strength.

[0094] Step C20: When the signal strength is less than the standard signal strength, determining that the state of the communication protection strategy in the current redundant protection strategy is an activated state.

[0095] It should be noted that in this step, when the system detects that the signal strength of the external antenna is less than the standard signal strength, the system will automatically set the communication protection strategy status in the redundant protection strategy to the activated state. It can be understood that the purpose of this step is to ensure that in the case of reduced communication quality (such as when the vehicle has strong vibrations or the wiring harness is abnormal after stress pulling, the antenna performance will be reduced), the redundant protection strategy can be activated in time to ensure normal data transmission.

[0096] In this embodiment, the reliability and stability of the vehicle communication system are significantly improved by implementing the power supply protection strategy, communication protection strategy and communication protection strategy. The implementation of these strategies relies on real-time monitoring and accurate judgment of power supply voltage, communication information and signal strength, thereby ensuring the normal operation and data transmission of the vehicle communication system in various complex environments.

[0097] Based on the first and second embodiments of the present application, in the third embodiment of the present application, the same or similar contents as those in the first and second embodiments can be referred to the above description, and will not be described in detail later. Figure 3 , Figure 3 This is a flow chart of the third embodiment of the vehicle communication data loss prevention method of the present application, wherein step S30 specifically includes:

[0098] Step S301: when the power supply protection strategy is in an activated state, the current power supply unit is switched to the redundant power supply unit for power supply.

[0099] It should be noted that if Figure 4 As shown, when the voltage of the vehicle's current power supply unit (i.e., the first power supply unit) is lower than the preset threshold value, the state of the power supply protection strategy is activated. At this time, the system will immediately start the redundant power supply unit (i.e., the redundant power supply unit) to supply power to ensure the continuous and stable operation of the vehicle-mounted communication. The redundant power supply unit can be a backup battery or it can be power provided by other stable power sources on the vehicle. The switching process is automatically completed by the power management module inside the system without manual intervention. For example, during the driving of the vehicle, if the main power supply unit causes a voltage drop due to some reason (such as aging, damage, etc.), when the voltage drops below the preset threshold value, the power supply protection strategy is triggered. At this time, the redundant power supply unit starts quickly and takes over the main power supply unit to power the controller, thereby ensuring the continuity and integrity of the vehicle-mounted communication data.

[0100] Step S302: When the state of the information protection policy is an activated state, the communication line is switched from the current communication line to the first communication line for communication, and the communication line includes the current communication line and the first communication line.

[0101] It should be noted that if Figure 4As shown, when the current communication line (such as the communication line of communication interface 1) fails or is abnormal, the state of the information protection strategy is activated. At this time, the system will immediately switch the communication line to the first communication line (such as the communication line of communication interface 2) for communication to ensure normal data transmission. The switching process is automatically completed by the communication management module inside the system. For example, when the vehicle communicates with the outside world, if the current communication line causes communication interruption or data error due to some reason (such as line damage, interference, etc.), the information protection strategy is triggered. At this time, the system will switch the communication line to another communication line and continue to complete the data transmission. In addition, the system will first compare and verify the information on the two buses to ensure the correctness of the information and the accurate transmission of the data.

[0102] In addition, it should be noted that the first communication line and the current communication line are independent of each other in hardware design, so as to ensure that when one line fails, the other line can still operate normally.

[0103] Step S303: When the communication protection strategy is in an activated state, the external antenna is turned off and the internal antenna is enabled for communication transmission.

[0104] It should be noted that when the external antenna has performance degradation or fails to work properly due to some reason (such as vehicle vibration, wiring harness pulling, etc.), the state of the communication protection strategy is activated. At this time, the system will immediately switch the antenna device to the built-in antenna for communication to ensure that the communication between the vehicle and the outside world is not interrupted. The switching process is automatically completed by the communication management module inside the system. For example, during the driving of the vehicle, if the external antenna has performance degradation or cannot receive / transmit signals due to vehicle vibration or wiring harness pulling, the communication protection strategy is triggered. At this time, the system will switch the antenna device to the built-in antenna to continue to complete the communication between the vehicle and the outside world. Since the built-in antenna is connected by PCB board welding, it has high stability and reliability, so the continuity and stability of communication can be ensured.

[0105] In this embodiment, redundant switching of power supply, communication lines and communication antennas ensures stable operation of the vehicle communication data loss prevention system under abnormal conditions, thereby improving system reliability and data security.

[0106] Reference Figure 4 , Figure 4 This is a schematic diagram of the system architecture of the vehicle communication data loss prevention method of this application. Figure 4As shown, the vehicle communication data loss prevention system includes an acquisition controller, a comparator, a power supply unit, a data processing unit, a communication processing unit, a backup controller, a hardware encryption unit, and an antenna device functional module. The power supply unit includes a first power supply unit and a startup redundant power supply unit, and the antenna device functional module includes an external antenna and a built-in antenna.

[0107] This application also provides a vehicle communication data loss prevention device, please refer to Figure 5 , the vehicle-mounted communication data anti-loss device comprises:

[0108] The information acquisition module 10 is used to acquire the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna.

[0109] The information processing module 20 is used to determine the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength.

[0110] The redundant protection module 30 is used to switch the corresponding device unit according to the state of the redundant protection strategy to prevent the loss of vehicle communication data. The device unit includes a redundant power supply unit, a first communication line and a built-in antenna.

[0111] The vehicle-mounted communication data anti-loss device provided by the present application adopts the vehicle-mounted communication data anti-loss method in the above-mentioned embodiment, which can solve the technical problem of how to improve the stability and security protection capability of vehicle-mounted communication data. Compared with the prior art, the beneficial effects of the vehicle-mounted communication data anti-loss device provided by the present application are the same as the beneficial effects of the vehicle-mounted communication data anti-loss method provided by the above-mentioned embodiment, and the other technical features of the vehicle-mounted communication data anti-loss device are the same as the features disclosed in the above-mentioned embodiment method, which will not be repeated here.

[0112] In one embodiment, the information processing module 20 is also used to determine the state of the power supply protection strategy in the current redundant protection strategy based on the power supply voltage; determine the state of the communication protection strategy in the current redundant protection strategy based on the communication information; and determine the state of the communication protection strategy in the current redundant protection strategy based on the signal strength.

[0113] In one embodiment, the information processing module 20 is also used to obtain first communication information and second communication information based on the communication information, and the communication lines corresponding to the first communication information and the second communication information are different; when there is fault information in the first communication information or the second communication information, it is determined that the state of the communication protection strategy in the current redundant protection strategy is an activated state.

[0114] In one embodiment, the information processing module 20 is further used to obtain a threshold voltage of the power supply unit; when the power supply voltage is less than the threshold voltage, determine that the state of the power supply protection strategy in the current redundant protection strategy is an activated state.

[0115] In one embodiment, the information processing module 20 is further used to obtain the standard signal strength of the external antenna; when the signal strength is less than the standard signal strength, determine that the state of the communication protection strategy in the current redundant protection strategy is an activated state.

[0116] In one embodiment, the redundant protection module 30 is also used to switch the current power supply unit to the redundant power supply unit for power supply when the power supply protection strategy is in an activated state; when the information protection strategy is in an activated state, switch the communication line from the current communication line to the first communication line for communication, wherein the communication line includes the current communication line and the first communication line; when the communication protection strategy is in an activated state, turn off the external antenna and enable the internal antenna for communication transmission.

[0117] In one embodiment, the redundant protection module 30 is also used to upload the vehicle's communication data to a backup controller in the cloud for backup when the communication processing unit is in an abnormal state and the abnormal state is a circuit abnormal state; and to store the vehicle's communication data in a local backup controller for backup when the communication processing unit is in an abnormal state and the abnormal state is a network abnormal state.

[0118] The present application provides a vehicle-mounted communication data anti-loss 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 so that the at least one processor can execute the vehicle-mounted communication data anti-loss method in the above-mentioned embodiment one.

[0119] Reference below Figure 6 , which shows a schematic diagram of the structure of a vehicle-mounted communication data loss prevention device suitable for implementing the embodiment of the present application. The vehicle-mounted communication data loss prevention device in the embodiment 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), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The vehicle-mounted communication data loss prevention device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0120] like Figure 6 As shown, the vehicle-mounted communication data loss prevention device may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the vehicle-mounted communication data loss prevention device are also stored. The processing device 1001, ROM1002, and RAM1004 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, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the vehicle-mounted communication data loss prevention device to communicate wirelessly or wired with other devices to exchange data. Although the figure shows a vehicle-mounted communication data loss prevention device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0121] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a 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 through 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.

[0122] The vehicle-mounted communication data loss prevention device provided by the present application adopts the vehicle-mounted communication data loss prevention method in the above-mentioned embodiment, which can solve the technical problem of how to improve the stability and security protection capability of vehicle-mounted communication data. Compared with the prior art, the beneficial effects of the vehicle-mounted communication data loss prevention device provided by the present application are the same as the beneficial effects of the vehicle-mounted communication data loss prevention method provided by the above-mentioned embodiment, and the other technical features in the vehicle-mounted communication data loss prevention device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0123] It should be understood that the various parts disclosed in this application can be implemented by 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.

[0124] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0125] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the vehicle-mounted communication data loss prevention method in the above-mentioned embodiment.

[0126] The computer-readable storage medium provided in the present 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 of the above. 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 of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination 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 of the above.

[0127] The computer-readable storage medium may be included in the vehicle-mounted communication data loss prevention device; or may exist independently without being assembled into the vehicle-mounted communication data loss prevention device.

[0128] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the vehicle-mounted communication data loss prevention device, the vehicle-mounted communication data loss prevention device: obtains the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna; determines the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength; switches the corresponding device unit according to the state of the redundant protection strategy to prevent the loss of vehicle-mounted communication data, and the device unit includes a redundant power supply unit, a first communication line and a built-in antenna.

[0129] 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 separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of 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., via the Internet using an Internet service provider).

[0130] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the 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 square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square 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 square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0131] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0132] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned vehicle-mounted communication data anti-loss method, and can solve the technical problem of how to improve the stability and security protection capability of vehicle-mounted communication data. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the vehicle-mounted communication data anti-loss method provided by the above-mentioned embodiment, and will not be repeated here.

[0133] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned vehicle communication data loss prevention method when executed by a processor.

[0134] The computer program product provided by this application can solve the technical problem of how to improve the stability and security protection capability of vehicle-mounted communication data. Compared with the prior art, the beneficial effects of the computer program product provided by this application are the same as the beneficial effects of the vehicle-mounted communication data loss prevention method provided by the above embodiment, and will not be repeated here.

[0135] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for preventing vehicle communication data from being lost, characterized in that: The method is applied to a vehicle-mounted communication data loss prevention system, the system comprising: a power supply unit, a redundant power supply unit, a data processing unit, a backup controller, a communication processing unit, a built-in antenna and an external antenna; The method comprises: Acquiring the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna; Determine the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength; The corresponding device unit is switched according to the state of the redundant protection strategy to prevent the loss of vehicle communication data, and the device unit includes a redundant power supply unit, a first communication line and a built-in antenna.

2. The method according to claim 1, characterized in that The step of determining the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength comprises: Determine the state of the power supply protection strategy in the current redundant protection strategy according to the power supply voltage; Determine the state of the communication protection strategy in the current redundant protection strategy according to the communication information; The state of the communication protection strategy in the current redundant protection strategy is determined according to the signal strength.

3. The method according to claim 2, characterized in that The step of determining the state of the communication protection strategy in the current redundant protection strategy according to the communication information comprises: Obtaining first communication information and second communication information according to the communication information, wherein the first communication information and the second communication information correspond to different communication lines; When fault information exists in the first communication information or the second communication information, it is determined that the state of the communication protection strategy in the current redundancy protection strategy is an activated state.

4. The method according to claim 2, characterized in that The step of determining the state of the power supply protection strategy in the current redundant protection strategy according to the power supply voltage comprises: Acquiring a threshold voltage of the power supply unit; When the power supply voltage is less than the threshold voltage, it is determined that the state of the power supply protection strategy in the current redundant protection strategy is an activated state.

5. The method according to claim 2, characterized in that The step of determining the state of the communication protection strategy in the current redundant protection strategy according to the signal strength comprises: Obtaining a standard signal strength of the external antenna; When the signal strength is less than the standard signal strength, it is determined that the state of the communication protection strategy in the current redundant protection strategy is an activated state.

6. The method according to claim 1, characterized in that After the step of switching the corresponding equipment unit according to the state of the redundant protection strategy, the method further includes: When the communication processing unit is in an abnormal state, and the abnormal state is a circuit abnormal state, uploading the communication data of the vehicle to a backup controller in the cloud for backup; When the communication processing unit is in an abnormal state, and the abnormal state is a network abnormal state, the communication data of the vehicle is stored in a local backup controller for backup.

7. The method according to any one of claims 1 to 6, characterized in that The state of the redundant protection strategy includes the states of the power supply protection strategy, the information protection strategy and the communication protection strategy, and the step of switching the corresponding device unit according to the state of the redundant protection strategy includes: When the power supply protection strategy is in an activated state, switching the current power supply unit to the redundant power supply unit for power supply; When the state of the information protection policy is an activated state, switching the communication line from the current communication line to the first communication line for communication, the communication line includes the current communication line and the first communication line; When the communication protection strategy is in an activated state, the external antenna is turned off and the internal antenna is enabled for communication transmission.

8. A vehicle-mounted communication data loss prevention device, characterized in that: The device comprises: An information acquisition module, used to acquire the power supply voltage of the power supply unit, the communication information between the data processing unit and the communication processing unit, and the signal strength of the external antenna; An information processing module, used to determine the state of the current redundant protection strategy according to the power supply voltage, the communication information and the signal strength; The redundant protection module is used to switch the corresponding equipment unit according to the state of the redundant protection strategy to prevent the loss of vehicle communication data. The equipment unit includes a redundant power supply unit, a first communication line and a built-in antenna.

9. A vehicle-mounted communication data loss prevention 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 vehicle communication data loss prevention 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 vehicle-mounted communication data anti-loss method according to any one of claims 1 to 7 are implemented.

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