CN-122027641-A - Vehicle-mounted equipment control management data system and transmission method

CN122027641ACN 122027641 ACN122027641 ACN 122027641ACN-122027641-A

Abstract

The invention discloses a vehicle-mounted equipment control management data system and a transmission method, wherein the system comprises a sensing layer, an access layer, a transmission layer and a management layer which are sequentially in communication connection, 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, the equipment authentication module realizes identity authentication of the vehicle-mounted equipment terminals, the data preprocessing module carries out preprocessing and priority marking on collected data, the transmission layer is used for selecting a transmission link and distributing transmission time slots and bandwidths for different priority data, and the management layer is used for data processing and feedback and dynamically adjusts a transmission strategy based on the monitored link state. The invention can realize unified control of multiple devices, reduce transmission delay and improve transmission reliability, wherein a multi-path transmission mechanism is adopted to combine redundant transmission with a fault-tolerant algorithm, thereby improving data transmission and bandwidth utilization rate.

Inventors

JIA KANGHUI
ZHANG XIN
FENG AILING
ZHAO LONG
ZHANG ZHIWEI

Assignees

赛马物联科技(宁夏)有限公司

Dates

Publication Date: 20260512
Application Date: 20251229

Claims (10)

1. The vehicle-mounted equipment control management data system is characterized by comprising a sensing layer, an access layer, a transmission layer and a management layer which are sequentially in communication connection; the sensing layer comprises a plurality of vehicle-mounted equipment terminals classified according to function types, and each vehicle-mounted equipment terminal is internally provided with a standardized data acquisition interface which is used for initiating an access request to the access layer and establishing communication connection and data acquisition after verification is passed; The access layer comprises a vehicle-mounted gateway module, an equipment authentication module and a data preprocessing module, wherein the vehicle-mounted gateway module supports multi-protocol access and protocol conversion, and the equipment authentication module realizes the identity authentication of a vehicle-mounted equipment terminal; The transmission layer comprises a communication link selection module, a priority scheduling module, a dynamic bandwidth allocation module and a redundant transmission module, and is used for selecting a transmission link, allocating transmission time slots and bandwidths for different priority data and redundant transmission; The management layer comprises a local controller, a cloud management platform, a data storage encryption module and a state monitoring module, and is used for data processing and feedback and dynamically adjusting a transmission strategy based on the monitored link state.
2. The vehicle-mounted device control management data system according to claim 1, wherein the vehicle-mounted device terminals of the perception layer are classified into an emergency security device, a real-time control device and a non-real-time service device according to function types, and each device supports at least one communication protocol of a CAN bus, a LIN bus and an ethernet.
3. The vehicle-mounted equipment control management data system according to claim 1, wherein the equipment authentication module realizes equipment identity registration and bidirectional authentication based on a preset blockchain framework, and stores equipment identity and authentication keys.
4. The system of claim 2, wherein the communication link selection module of the transmission layer is configured with a vehicle ethernet, 5G, wiFi, and a satellite communication link, and the priority scheduling module adopts a TDMA and FDMA hybrid multiple access manner to allocate transmission time slots according to priorities of an emergency security class, a real-time control class, and a non-real-time traffic class.
5. The vehicle-mounted equipment control management data system according to claim 4, wherein the dynamic bandwidth allocation module allocates a preset proportion of bandwidth to each priority data based on a weighted fair queue QoS algorithm, and supports dynamic adjustment of bandwidth occupancy according to network load.
6. The vehicle-mounted equipment control management data system according to claim 5, wherein the redundant transmission module adopts a multi-path transmission mechanism for the emergency security class and the real-time control class data, and integrates a forward error correction algorithm and an ARQ automatic retransmission request algorithm of timeout retransmission so as to realize data packet loss error correction and retransmission.
7. The vehicle-mounted equipment control management data system according to claim 6, wherein the data storage encryption module of the management layer performs end-to-end data encryption by using an AES-256 algorithm and performs data integrity check by using an SHA-256 algorithm.
8. A transmission method of in-vehicle apparatus control management data, characterized by being applied to the in-vehicle apparatus control management data system as set forth in claim 1, the method comprising the steps of: An access request is initiated to an access layer through a vehicle-mounted equipment terminal, and communication connection is established after the identity verification is passed; uploading data acquired by a vehicle-mounted equipment terminal to an access layer, and carrying out preprocessing and priority marking, wherein the access layer marks transmission priority according to the data function type; Selecting a transmission link through a transmission layer, and distributing transmission time slots and bandwidths and redundant transmission for different priority data; Carrying out data processing and feedback in real time through a management layer local controller; The reuse status monitoring module dynamically adjusts the transmission policy based on the monitored link status.
9. The method of claim 8, wherein the communication link selection module of the transmission layer is configured with a vehicle-mounted Ethernet, 5G, wiFi and a satellite communication link, and the priority scheduling module allocates transmission time slots according to priorities of an emergency security class, a real-time control class and a non-real-time traffic class by adopting a TDMA and FDMA hybrid multiple access mode.
10. The method of claim 9 wherein a multi-path transmission mechanism is employed for the emergency security class and real-time control class data by a redundancy transmission module, and a forward error correction algorithm and an ARQ automatic repeat request algorithm for timeout retransmission are integrated to achieve data packet loss error correction and retransmission.

Description

Vehicle-mounted equipment control management data system and transmission method Technical Field The invention relates to the technical fields of digital logistics, vehicle-mounted equipment and data transmission, in particular to a vehicle-mounted equipment control management data system and a transmission method. Background Along with the rapid development of digital logistics, the number of vehicle-mounted equipment on a transport vehicle is gradually increased, the types are increasingly complex, and various equipment are required to realize cooperative work through data interaction, however, the existing vehicle-mounted data management and transmission scheme has the following defects: 1. the multi-device access is disordered, namely, the unified device access standard is lacking, the centralized management and control of the vehicle-mounted devices with different protocols and different types are difficult to realize, and the data interaction compatibility is poor; 2. The traditional vehicle-mounted transmission mostly adopts a single communication link (such as a CAN bus), a dynamic scheduling mechanism is lacked, and emergency safety data and non-emergency data occupy bandwidth, so that key data transmission delay is caused; 3. The security is insufficient, the data transmission process lacks an end-to-end encryption and equipment identity authentication mechanism, and is easy to suffer from malicious invasion, data tampering or eavesdropping; 4. the bandwidth utilization rate is low, and the bandwidth cannot be dynamically adjusted according to the network load and the data priority by adopting a fixed bandwidth allocation mode, so that bandwidth resource waste or deficiency is caused. Disclosure of Invention In view of the technical drawbacks mentioned in the background art, an object of an embodiment of the present invention is to provide a vehicle-mounted device control management data system and a transmission method, which aim to solve at least one of the technical problems in the related art to a certain extent. In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a vehicle-mounted device control management data system, where the system includes a sensing layer, an access layer, a transmission layer, and a management layer that are sequentially connected in communication; the sensing layer comprises a plurality of vehicle-mounted equipment terminals classified according to function types, and each vehicle-mounted equipment terminal is internally provided with a standardized data acquisition interface which is used for initiating an access request to the access layer and establishing communication connection and data acquisition after verification is passed; The access layer comprises a vehicle-mounted gateway module, an equipment authentication module and a data preprocessing module, wherein the vehicle-mounted gateway module supports multi-protocol access and protocol conversion, and the equipment authentication module realizes the identity authentication of a vehicle-mounted equipment terminal; The transmission layer comprises a communication link selection module, a priority scheduling module, a dynamic bandwidth allocation module and a redundant transmission module, and is used for selecting a transmission link, allocating transmission time slots and bandwidths for different priority data and redundant transmission; The management layer comprises a local controller, a cloud management platform, a data storage encryption module and a state monitoring module, and is used for data processing and feedback and dynamically adjusting a transmission strategy based on the monitored link state. As a specific implementation mode of the application, the vehicle-mounted equipment terminal of the perception layer is divided into emergency safety equipment, real-time control equipment and non-real-time service equipment according to the function types, and each equipment supports at least one communication protocol in CAN bus, LIN bus and Ethernet. As a specific implementation mode of the application, the equipment authentication module realizes equipment identity registration and bidirectional authentication based on a preset blockchain framework and stores equipment identity identification and authentication keys. The application is characterized in that the communication link selection module of the transmission layer is configured with a vehicle-mounted Ethernet, 5G, wiFi and a satellite communication link, and the priority scheduling module adopts a TDMA and FDMA hybrid multiple access mode to allocate transmission time slots according to priorities of emergency safety class, real-time control class and non-real-time service class. As a specific implementation manner of the present application, the dynamic bandwidth allocation module allocates a bandwidth of a preset proportion to each priority data based on a weighted fair queue QoS algorithm, an