Vehicle-mounted equipment control management data system and transmission method

Abstract

The invention discloses a vehicle-mounted equipment control management data system and a transmission method. The system comprises a sensing layer, an access layer, a transmission layer and a management layer which are in communication connection in sequence, the sensing layer comprises a plurality of vehicle-mounted equipment terminals classified according to function types; the access layer comprises a vehicle-mounted gateway module, an equipment authentication module and a data preprocessing module, the vehicle-mounted gateway module supports multi-protocol access and protocol conversion, and the equipment authentication module realizes identity authentication of a vehicle-mounted equipment terminal; the data preprocessing module carries out preprocessing and priority marking on the collected data; the transmission layer is used for selecting a transmission link and distributing transmission time slots and bandwidths for data with different priorities; and the management layer is used for processing and feeding back data and dynamically adjusting a transmission strategy based on the monitored link state. According to the method, unified management and control of multiple devices can be achieved, transmission delay is reduced, transmission reliability is improved, a multi-path transmission mechanism is adopted, redundant transmission and a fault-tolerant algorithm are combined, and the data transmission and bandwidth utilization rate is improved.

Description

Technical Field

[0001] This invention relates to the fields of digital logistics, vehicle-mounted equipment, and data transmission technology, specifically to a vehicle-mounted equipment control and management data system and transmission method. Background Technology

[0002] With the rapid development of digital logistics, the number and types of onboard equipment on transport vehicles are gradually increasing, and various devices need to work collaboratively through data interaction; however, existing onboard data management and transmission solutions have the following shortcomings:

[0003] 1. Disorganized access to multiple devices: The lack of a unified device access standard makes it difficult to centrally manage different protocols and types of vehicle-mounted devices, resulting in poor data interaction compatibility;

[0004] 2. High transmission latency: Traditional vehicle transmission often uses a single communication link (such as CAN bus), which lacks a dynamic scheduling mechanism. Urgent safety data and non-urgent data compete for bandwidth, resulting in delays in the transmission of critical data.

[0005] 3. Insufficient security: The data transmission process lacks end-to-end encryption and device authentication mechanisms, making it vulnerable to malicious intrusion, data tampering, or eavesdropping;

[0006] 4. Low bandwidth utilization: The fixed bandwidth allocation method cannot be dynamically adjusted according to network load and data priority, resulting in wasted or insufficient bandwidth resources. Summary of the Invention

[0007] In view of the technical defects mentioned in the background art, the purpose of this invention is to provide an in-vehicle equipment control and management data system and transmission method, which aims to at least solve one of the technical problems in the related art to a certain extent.

[0008] To achieve the above objectives, in a first aspect, embodiments of the present invention provide an in-vehicle equipment control and management data system, the system comprising a perception layer, an access layer, a transmission layer, and a management layer that are sequentially and communicatively connected.

[0009] The perception layer includes several vehicle-mounted equipment terminals classified by function type. Each vehicle-mounted equipment terminal has a built-in standardized data acquisition interface, which is used to initiate an access request to the access layer and establish a communication connection and data acquisition after verification.

[0010] The access layer includes an in-vehicle gateway module, a device authentication module, and a data preprocessing module. The in-vehicle gateway module supports multi-protocol access and protocol conversion. The device authentication module implements identity authentication for in-vehicle device terminals. The data preprocessing module is used to preprocess and prioritize the collected data.

[0011] The transmission layer includes a communication link selection module, a priority scheduling module, a dynamic bandwidth allocation module, and a redundant transmission module, which are used to select transmission links, allocate transmission time slots and bandwidth to data of different priorities, and perform redundant transmission.

[0012] The management layer includes a local controller, a cloud management platform, a data storage encryption module, and a status monitoring module, which are used for data processing and feedback, as well as dynamically adjusting the transmission strategy based on the monitored link status.

[0013] As a specific implementation of this application, the vehicle-mounted equipment terminal of the perception layer is divided into emergency safety equipment, real-time control equipment and non-real-time business equipment according to its functional type. Each device supports at least one communication protocol among CAN bus, LIN bus and Ethernet.

[0014] As a specific implementation of this application, the device authentication module implements device identity registration and two-way authentication based on a preset blockchain framework, and stores device identity identifiers and authentication keys.

[0015] As a specific implementation of this application, the communication link selection module of the transmission layer is configured with vehicle Ethernet, 5G, WiFi and satellite communication links; the priority scheduling module adopts a hybrid TDMA and FDMA multiple access method to allocate transmission time slots according to the priority of emergency safety class, real-time control class and non-real-time service class.

[0016] As a specific implementation of this application, the dynamic bandwidth allocation module is based on the weighted fair queue QoS algorithm, which allocates a preset proportion of bandwidth to data of each priority, and supports dynamically adjusting the bandwidth ratio according to network load.

[0017] As a specific implementation of this application, the redundant transmission module adopts a multi-path transmission mechanism for the emergency safety and real-time control data, and integrates a forward error correction algorithm and an ARQ automatic retransmission request algorithm for timeout retransmission to realize data packet loss error correction and retransmission.

[0018] As a specific implementation of this application, the data storage encryption module of the management layer uses the AES-256 algorithm for end-to-end data encryption and the SHA-256 algorithm for data integrity verification.

[0019] Secondly, embodiments of the present invention also provide a method for transmitting vehicle-mounted equipment control and management data, applied to the vehicle-mounted equipment control and management data system described in the first aspect, the method comprising the following steps:

[0020] The vehicle-mounted device terminal initiates an access request to the access layer and establishes a communication connection after successful authentication.

[0021] The data collected by the vehicle-mounted equipment terminal is uploaded to the access layer, where it is preprocessed and prioritized. The access layer prioritizes the data according to its function type.

[0022] The transport layer selects the transmission link, allocates transmission time slots and bandwidth to data of different priorities, and implements redundant transmission.

[0023] Data processing and feedback are performed in real time through a local controller at the management level;

[0024] The status monitoring module is then used to dynamically adjust the transmission strategy based on the monitored link status.

[0025] The technical solutions provided in the embodiments of the present invention have the following beneficial effects:

[0026] 1. Achieve unified management and control of multiple devices: Through access layer multi-protocol compatibility and device authentication mechanisms, the access compatibility problem of different types of vehicle-mounted devices is solved, and centralized management and control is achieved;

[0027] 2. Reduce transmission latency: By allocating transmission time slots and bandwidth to data of different priorities, avoid urgent security data and non-urgent data competing for bandwidth;

[0028] 3. Improve transmission reliability: Adopt a multi-path transmission mechanism, combining redundant transmission with fault-tolerant algorithms to improve the data transmission success rate;

[0029] 4. Improve bandwidth utilization: Dynamically adjust transmission strategies through data processing and feedback, as well as based on monitored link status. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below.

[0031] Figure 1 This is a schematic diagram of a vehicle-mounted equipment control and management data system provided in an embodiment of the present invention;

[0032] Figure 2 This is a flowchart of a method for transmitting control and management data of vehicle-mounted equipment provided in an embodiment of the present invention. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0035] It should be noted that, unless otherwise stated, the technical terms used in this embodiment have the common meaning as understood in the relevant technical field.

[0036] Please refer to Figure 1 The vehicle-mounted equipment control and management data system provided in this embodiment of the invention includes a perception layer, an access layer, a transmission layer and a management layer that are sequentially connected in communication.

[0037] The perception layer includes several vehicle-mounted equipment terminals classified by function type. Each vehicle-mounted equipment terminal has a built-in standardized data acquisition interface, which is used to initiate an access request to the access layer and establish a communication connection and data acquisition after verification.

[0038] The access layer includes an in-vehicle gateway module, a device authentication module, and a data preprocessing module. The in-vehicle gateway module supports multi-protocol access and protocol conversion. The device authentication module implements identity authentication for in-vehicle device terminals. The data preprocessing module is used to preprocess and prioritize the collected data.

[0039] The transmission layer includes a communication link selection module, a priority scheduling module, a dynamic bandwidth allocation module, and a redundant transmission module, which are used to select transmission links, allocate transmission time slots and bandwidth to data of different priorities, and perform redundant transmission.

[0040] The management layer includes a local controller, a cloud management platform, a data storage encryption module, and a status monitoring module, which are used for data processing and feedback, as well as dynamically adjusting the transmission strategy based on the monitored link status.

[0041] The in-vehicle equipment terminals of the perception layer are divided into emergency safety devices, real-time control devices and non-real-time business devices according to their functional types. Each device supports at least one communication protocol among CAN bus, LIN bus and Ethernet.

[0042] It supports outputting device status data, control command data, and business data in preset formats.

[0043] The device authentication module implements device identity registration and two-way authentication based on a preset blockchain framework, and stores device identity identifiers and authentication keys, rejecting unauthorized devices from accessing the site.

[0044] The data preprocessing module performs noise reduction, format standardization, invalid data removal, and data volume compression on the data collected by the perception layer.

[0045] The communication link selection module of the transmission layer is configured with vehicle-mounted Ethernet, 5G, WiFi and satellite communication links; it selects the optimal transmission link or multi-link collaborative transmission according to network status (bandwidth, latency, packet loss rate);

[0046] The priority scheduling module adopts a hybrid TDMA and FDMA multiple access method, and allocates transmission time slots according to the priority of emergency security, real-time control and non-real-time service. For example, emergency security data is given the highest priority P1, real-time control data is given the second highest priority P2, and non-real-time service data is given the normal priority P3.

[0047] The dynamic bandwidth allocation module is based on the weighted fair queue QoS algorithm, which allocates a preset proportion of bandwidth to data of each priority, and supports dynamic adjustment of the bandwidth proportion according to network load.

[0048] This dynamic bandwidth allocation module is based on the QoS (Quality of Service) algorithm and monitors network load and data transmission demand in real time, dynamically allocating bandwidth resources for data of different priorities; for example, P1 level data is allocated 30%-50% of the bandwidth, P2 level data is allocated 20%-30% of the bandwidth, and P3 level data occupies the remaining bandwidth.

[0049] The redundant transmission module employs a multi-path transmission mechanism for the emergency safety and real-time control data, and integrates a forward error correction algorithm and an ARQ automatic retransmission request algorithm for timeout retransmission to achieve data packet loss error correction and retransmission.

[0050] Local controller: Deployed inside the vehicle, it receives data from the transmission layer in real time, processes P1 and P2 level data locally in real time, generates control commands, and feeds them back to the perception layer vehicle-mounted equipment terminal.

[0051] Cloud management platform: Communicates with the transport layer via 5G network to receive non-real-time business data, perform data analysis, remote equipment control, and software upgrades;

[0052] The data storage encryption module of the management layer uses the AES-256 algorithm for end-to-end data encryption and the SHA-256 algorithm for data integrity verification.

[0053] Status monitoring module: Real-time monitoring of the operating status of sensing layer devices, transmission layer link quality, and management layer data processing status, generating abnormal alarm information.

[0054] The above solution has the following beneficial effects:

[0055] 1. Achieve unified management and control of multiple devices: Through access layer multi-protocol compatibility and device authentication mechanisms, the access compatibility problem of different types of vehicle-mounted devices is solved, and centralized management and control is achieved;

[0056] 2. Reduce transmission latency: By allocating transmission time slots and bandwidth to data of different priorities, avoid urgent security data and non-urgent data competing for bandwidth;

[0057] 3. Improve transmission reliability: Adopt a multi-path transmission mechanism, combining redundant transmission with fault-tolerant algorithms to improve the data transmission success rate;

[0058] 4. Improve bandwidth utilization: Dynamically adjust transmission strategies through data processing and feedback, as well as based on monitored link status.

[0059] Reference Figure 2 Based on the same inventive concept, embodiments of the present invention also provide a method for transmitting vehicle-mounted equipment control and management data, applied to the vehicle-mounted equipment control and management data system described in the first aspect, the method comprising the following steps:

[0060] S101, initiates an access request to the access layer through the vehicle-mounted equipment terminal, and establishes a communication connection after successful authentication;

[0061] S102, the data collected by the vehicle-mounted equipment terminal is uploaded to the access layer, and preprocessed and prioritized; wherein, the access layer marks the transmission priority according to the data function type;

[0062] S103 selects the transmission link through the transport layer, allocates transmission time slots and bandwidth to data of different priorities, and performs redundant transmission;

[0063] S104, which performs real-time data processing and feedback through the local controller at the management level;

[0064] S105, then utilize the status monitoring module to dynamically adjust the transmission strategy based on the monitored link status.

[0065] The communication link selection module of the transmission layer is configured with vehicle-mounted Ethernet, 5G, WiFi and satellite communication links; the priority scheduling module adopts a hybrid TDMA and FDMA multiple access method to allocate transmission time slots according to the priority of emergency safety, real-time control and non-real-time service categories.

[0066] Furthermore, the method also includes:

[0067] The emergency safety and real-time control data are transmitted via a multi-path transmission mechanism using a redundant transmission module, and the forward error correction algorithm and the ARQ automatic retransmission request algorithm for timeout retransmission are integrated to achieve data packet loss error correction and retransmission.

[0068] It should be noted that for a more detailed description of the workflow of the method embodiments, please refer to the aforementioned system embodiments section, which will not be repeated here.

[0069] Achieve unified management and control of multiple devices: By using access layer multi-protocol compatibility and device authentication mechanisms, the access compatibility issues of different types of vehicle-mounted devices are resolved, enabling centralized management and control;

[0070] Reduce transmission latency: By allocating transmission time slots and bandwidth to data of different priorities, avoid urgent security data and non-urgent data competing for bandwidth;

[0071] Improve transmission reliability: Employ a multi-path transmission mechanism that combines redundant transmission with fault-tolerant algorithms to improve data transmission success rate;

[0072] Improve bandwidth utilization: Dynamically adjust transmission strategies through data processing and feedback, as well as based on monitored link status.

[0073] In the embodiments provided in this application, it should be understood that the disclosed methods and systems can also be implemented in other ways. The embodiments described above are merely illustrative. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the figures. For example, two consecutive blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified functions or actions, or using a combination of dedicated hardware and computer instructions.

[0074] In addition, the functional modules in the various embodiments of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0075] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0076] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A vehicle-mounted equipment control and management data system, characterized in that, The system comprises a perception layer, an access layer, a transmission layer, and a management layer that are sequentially connected in communication. The perception layer includes several vehicle-mounted equipment terminals classified by function type. Each vehicle-mounted equipment terminal has a built-in standardized data acquisition interface, which is used to initiate an access request to the access layer and establish a communication connection and data acquisition after verification. The access layer includes an in-vehicle gateway module, a device authentication module, and a data preprocessing module. The in-vehicle gateway module supports multi-protocol access and protocol conversion. The device authentication module implements identity authentication for in-vehicle device terminals. The data preprocessing module is used to preprocess and prioritize the collected data. The transmission layer includes a communication link selection module, a priority scheduling module, a dynamic bandwidth allocation module, and a redundant transmission module, which are used to select transmission links, allocate transmission time slots and bandwidth to data of different priorities, and perform redundant transmission. The management layer includes a local controller, a cloud management platform, a data storage encryption module, and a status monitoring module, which are used for data processing and feedback, as well as dynamically adjusting the transmission strategy based on the monitored link status.

2. The vehicle-mounted equipment control and management data system as described in claim 1, characterized in that, The in-vehicle equipment terminals of the perception layer are divided into emergency safety devices, real-time control devices, and non-real-time business devices according to their functional types. Each device supports at least one communication protocol among CAN bus, LIN bus, and Ethernet.

3. The vehicle-mounted equipment control and management data system as described in claim 1, characterized in that, The device authentication module implements device identity registration and two-way authentication based on a preset blockchain framework, and stores device identity identifiers and authentication keys.

4. The vehicle-mounted equipment control and management data system as described in claim 2, characterized in that, The communication link selection module of the transmission layer is configured with vehicle-mounted Ethernet, 5G, WiFi and satellite communication links; the priority scheduling module adopts a hybrid TDMA and FDMA multiple access method to allocate transmission time slots according to the priority of emergency safety, real-time control and non-real-time service categories.

5. The vehicle-mounted equipment control and management data system as described in claim 4, characterized in that, The dynamic bandwidth allocation module is based on the weighted fair queue QoS algorithm, which allocates a preset proportion of bandwidth to data of each priority, and supports dynamic adjustment of the bandwidth ratio according to network load.

6. The vehicle-mounted equipment control and management data system as described in claim 5, characterized in that, The redundant transmission module employs a multi-path transmission mechanism for the emergency safety and real-time control data, and integrates a forward error correction algorithm and an ARQ automatic retransmission request algorithm for timeout retransmission to achieve data packet loss error correction and retransmission.

7. The vehicle-mounted equipment control and management data system as described in claim 6, characterized in that, The data storage encryption module of the management layer uses the AES-256 algorithm for end-to-end data encryption and the SHA-256 algorithm for data integrity verification.

8. A method for transmitting control and management data of vehicle-mounted equipment, characterized in that, The method, applied to the vehicle-mounted equipment control and management data system of claim 1, comprises the following steps: The vehicle-mounted device terminal initiates an access request to the access layer and establishes a communication connection after successful authentication. The data collected by the vehicle-mounted equipment terminal is uploaded to the access layer, where it is preprocessed and prioritized. The access layer prioritizes the data according to its function type. The transport layer selects the transmission link, allocates transmission time slots and bandwidth to data of different priorities, and implements redundant transmission. Data processing and feedback are performed in real time through a local controller at the management level; The status monitoring module is then used to dynamically adjust the transmission strategy based on the monitored link status.

9. The method as described in claim 8, characterized in that, The communication link selection module of the transmission layer is configured with vehicle-mounted Ethernet, 5G, WiFi and satellite communication links; the priority scheduling module adopts a hybrid TDMA and FDMA multiple access method to allocate transmission time slots according to the priority of emergency safety, real-time control and non-real-time service categories.

10. The method as described in claim 9, characterized in that, The emergency safety and real-time control data are transmitted via a multi-path transmission mechanism using a redundant transmission module, and the forward error correction algorithm and the ARQ automatic retransmission request algorithm for timeout retransmission are integrated to achieve data packet loss error correction and retransmission.

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