WO2025007797A1 - 一种基于车载以太网交换机的数据处理方法、装置及计算机系统 - Google Patents

一种基于车载以太网交换机的数据处理方法、装置及计算机系统 Download PDF

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WO2025007797A1
WO2025007797A1 PCT/CN2024/101966 CN2024101966W WO2025007797A1 WO 2025007797 A1 WO2025007797 A1 WO 2025007797A1 CN 2024101966 W CN2024101966 W CN 2024101966W WO 2025007797 A1 WO2025007797 A1 WO 2025007797A1
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switch
vehicle
data processing
message
ethernet
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French (fr)
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肖玲
姜成龙
舒畅
李敏
贺琳曼
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Dongfeng Motor Group Co Ltd
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Dongfeng Motor Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/35—Switches specially adapted for specific applications
    • H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle

Definitions

  • the present invention relates to the field of automotive electronic technology, and in particular to a data processing method, device and computer system based on an on-board Ethernet switch.
  • the E/E architecture based on domain control is challenged: the three-electric system of EV increases the complexity of the automobile E/E architecture; functions such as smart cockpit and autonomous driving require the integration of more sensor data, posing more challenges to OTA, computing power and vehicle safety.
  • the new generation of service-oriented electronic and electrical architecture requires at least Gigabit Ethernet for data exchange due to the large amount of data exchange between the central computing platform and the regional controllers.
  • the next generation of electronic and electrical architectures has begun to adopt at least 1000Mbit/s automotive Ethernet bus technology and is used for backbone network communications.
  • the purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide a data processing method, device and computer system based on an in-vehicle Ethernet switch, so that data passing through the same in-vehicle Ethernet switch port can be transmitted in an orderly manner.
  • the present invention provides a data processing method based on an on-board Ethernet switch, which is applied to electronic equipment in a vehicle, and starts to transmit Ethernet messages through the switch; message type transmission judgment: judging whether the received Ethernet message is a periodic message, if so, transmitting the periodic message; if event message transmission is detected, the switch suspends the periodic message transmission and transmits the event message.
  • the present invention further provides a data processing device based on an in-vehicle Ethernet switch, including a computer program, which can execute a data processing method based on an in-vehicle Ethernet switch.
  • the present invention also provides a computer system, including a data processing device based on a vehicle-mounted Ethernet switch.
  • the data processing method, device and computer system based on the vehicle Ethernet switch of the present invention have the following beneficial effects: the architecture and process layout of the technical solution of the present invention are clear and simple, which greatly improves the communication efficiency and enables the data through the same vehicle Ethernet switch port to be transmitted in an orderly manner.
  • FIG1 is a network topology diagram of an electrical architecture that supports the data processing method, device, and computer system based on an in-vehicle Ethernet switch of the present invention
  • FIG2 is a schematic diagram of the overall flow of a data processing method based on an in-vehicle Ethernet switch according to the present invention
  • FIG3 is a schematic diagram of the structure of a data processing device based on an in-vehicle Ethernet switch according to the present invention.
  • FIG. 4 is a schematic diagram of the structure of the computer system of the present invention.
  • An embodiment of the first aspect of the present invention discloses a data processing method based on an in-vehicle Ethernet switch, comprising two stages: stage A) obtaining the sending status of network transmission messages, wherein the network transmission messages include messages sent by event triggering, messages sent by periodicity, and messages sent by periodic events; and stage B) based on the message transmission mode, according to the message sending cycle category, the messages are stored in different queues, and the queue gates are opened and closed according to the cycle, so that the messages are sent out from the switch ports in an orderly manner.
  • the vehicle Ethernet switch data processing method wherein the step A) further includes: when the message sent to the switch 210 is an event type, the switch 210 sends an event message after sending the currently transmitted periodic message; when the switch 210 receives a periodic type or periodic event type message, the message is transmitted in order according to the door switch state.
  • a vehicle Ethernet switch data processing system according to an embodiment of the second aspect of the present invention, wherein the system bus controller includes a Switch switch 210 controller, five ECUs 220 (ECU1, ECU2, ECU3, ECU4 and ECU5), two applications (application one 240 and application two 250), and four message storage units 230.
  • the system bus controller includes a Switch switch 210 controller, five ECUs 220 (ECU1, ECU2, ECU3, ECU4 and ECU5), two applications (application one 240 and application two 250), and four message storage units 230.
  • ECU1, ECU2, ECU3 and ECU4 send Ethernet messages according to events or cycles.
  • the message sending cycle is 10ms, 20ms, 50ms, etc. according to functional requirements.
  • the messages entering from different receiving ports (Port1 to Port4) of the switch 210 are divided into 4 categories according to different cycles and stored in 4 different storage units 230. According to the switch list of the storage unit 230, the 4 storage units 230 are switched periodically so that the messages pass through the sending port (Port5) of the switch 210 in an orderly manner.
  • the data processing method based on the vehicle-mounted Ethernet switch of the present invention comprises the following steps:
  • step S1 a method for transmitting Ethernet messages through the switch 210, wherein the message transmission method includes messages sent according to event triggering, messages sent according to a period, and messages sent according to periodic events; in step S2, it is determined whether the received Ethernet message is sent according to a period.
  • step S3 when event-type message transmission is detected, the switch 210 should suspend the transmission of periodic messages and transmit event-type messages; in step S4, according to the type of Ethernet message transmission cycle, the same type of messages are stored in the same memory (i.e., the storage unit 230 in Figure 1), and the messages are transmitted according to the scheduling table.
  • each ECU220 controller is connected to the Ethernet switch 210Switch through the Ethernet bus.
  • the Ethernet bus between each ECU220 Ethernet switch 210Switch complies with the 1000BASE-T1 communication protocol, and the communication rate is 1000Mbit/s.
  • the Ethernet switch 210 is used to realize information interaction between each domain controller.
  • the vehicle Ethernet communication rate between each ECU220 controller and the switch 210Switch is not limited to 1000M. According to the communication requirements, even the vehicle Ethernet with a rate of more than 1000M, such as 2.5G BASE-T1, 5G BASE-T1, etc. And 10G BASE-T1, etc.
  • the message data information transmitted in the system is as follows: data stream sending node ECU220: ECU1, ECU2, ECU3, ECU4, message data stream receiving node ECU220: ECU5.
  • the data stream sending node ECU220 only needs two ECU220 to meet the basic technical requirements.
  • the embodiment of the present invention sets four data stream sending node ECU220, which is the best choice and achieves the maximum benefit on the basis of taking into account the economy.
  • ECU220 defines the source MAC address and destination MAC address of the message through the on-board Ethernet protocol stack.
  • the source MAC addresses of ECU1, ECU2, ECU3, and ECU4 are 01:00:94:00:00:05, 01:00:94:00:00:06, 01:00:94:00:00:07, and 01:00:94:00:00:08, respectively, and the destination MAC address of ECU5 is 01:00:94:00:00:09.
  • the interfaces provided by the switch 210 to ECU1, ECU2, ECU3, ECU4, and ECU5 are Port1, Port2, Port3, Port4, and Port5 respectively.
  • the switch 210 receives Ethernet messages from the four receiving ports Port1, Port2, Port3, and Port4 respectively, and sends them from the sending port Port5, which is received and processed by the ECU5. If the switch 210 does not process the received messages, when the network load is high, it is possible to cause the switch Port5 to be blocked, or even cause the transmission message to be lost.
  • the application 1 240 classifies the messages entering from different ports of the switch 210 into four categories according to Table 1, and stores them in different storage units 230 .
  • the application 250 dynamically configures the switch list of the storage unit 230 according to different message cycle types, as shown in Table 2.
  • the storage unit 230 is opened, the message stored in the storage unit 230 is transmitted through Port5, and the other three storage units 230 are closed, and so on.
  • the Switch 210 if the data frame cannot be sent before the door is closed, the Switch 210 must store the data frame in a buffer (not shown in the figure) and wait until the next door opening state to send it.
  • the data processing device based on the vehicle-mounted Ethernet switch of the present invention includes the following contents:
  • Message transmission start module starts to transmit Ethernet messages through the switch 210;
  • a message type transmission judgment module judges whether the received Ethernet message is a periodic message, and if so, transmits the periodic message;
  • Message transmission priority module if event-type message transmission is detected, the switch 210 suspends periodic message transmission and transmits event-type messages;
  • Message storage module according to the Ethernet message transmission type, the same type of messages are stored in the same storage unit 230, and the messages are transmitted according to the scheduling table.
  • the computer system of the present invention includes a data Data processing device.
  • Ethernet is a computer local area network technology.
  • the IEEE 802.3 standard of the IEEE organization has established the technical standard for Ethernet, which stipulates the content including the physical layer connection, electronic signals and media access layer protocol.
  • 100BASE-TX Industrial Ethernet, refers to 100Mbit/s baseband Fast Ethernet using two pairs of unshielded twisted pair wiring or shielded twisted pair wiring.
  • 100BASE-T1 is also called IEEE802.3bw. It is a standard defined by IEEE for 100M automotive Ethernet. Unlike traditional 100M Ethernet (100BASE-TX), 100BASE-T1 uses a pair of twisted-pair cables for full-duplex information transmission.
  • 1000Base-T1 1000BASE-T1 is also called IEEE802.3bp. It is a standard defined by IEEE for Gigabit Automotive Ethernet. Like 100BASE-T1, 1000BASE-T1 also uses a pair of twisted pair cables for full-duplex information transmission.
  • Ethernet switch 210 is a switch 210 that transmits data based on Ethernet.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明公开了一种基于车载以太网交换机的数据处理方法，开始通过交换机传输以太网报文；判断所述接收到的以太网报文是否是周期型报文，如果是，则传输周期型报文；如果检测到事件型报文发送，所述交换机暂停周期型报文传输，传输事件型报文。

Description

一种基于车载以太网交换机的数据处理方法、装置及计算机系统
相关申请的交叉引用
本申请实施例基于申请号为202310810201.7、申请日为2023年07月03日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请实施例作为参考。
技术领域
本发明涉及汽车电子技术领域，特别是涉及一种基于车载以太网交换机的数据处理方法、装置及计算机系统。
背景技术
随着汽车新四化发展，基于域控制的E/E架构受到挑战：EV的三电系统，增加了汽车E/E架构的复杂程度；智能座舱、自动驾驶等功能，需要融合更多传感器数据，对OTA、算力和车辆安全等提出更多挑战。
所以，在日益增长的汽车智能、网联、自动驾驶的发展趋势面前，所需的ECU计算能力越来越高，没有新的电子电气架构以及高性能的ECU支持，这些复杂的电子功能将难以实现。因此，未来汽车需要更高算力的ECU协同以及可拓展性的架构设计，基于中央计算平台的电子电气架构逐渐成为一种趋势。
新一代面向服务的电子电气架构由于中央计算平台及区域控制器间有大量数据交互，至少需要千兆以太网进行数据交互。国内外新 一代电子电气架构均开始采用至少1000Mbit/s车载以太网总线技术，并且用于骨干网通讯。
在汽车领域内，近几年内网络通讯方式的诉求，期望能够有更高的数据传输速率，但是对于通过同一车载以太网端口的数据即使最大努力挖掘潜力，有时也容易造成端口堵塞，造成报文丢失的情况发生。
发明内容
本发明的目的是为了克服上述背景技术的不足，提供一种基于车载以太网交换机的数据处理方法、装置及计算机系统，使其能让通过同一车载以太网交换机端口的数据有序传输。
本发明提供的一种基于车载以太网交换机的数据处理方法，应用于车辆的电子设备中，开始通过交换机传输以太网报文；报文类型发送判断：判断所述接收到的以太网报文是否是周期型报文，如果是，则传输周期型报文；如果检测到事件型报文发送，所述交换机暂停周期型报文传输，传输事件型报文。
作为第二方面，本发明又提供了一种基于车载以太网交换机的数据处理装置，包括计算机程序，该计算机程序能够执行基于车载以太网交换机的数据处理方法。
作为第三方吗，本发明还提供了一种计算机系统，包括基于车载以太网交换机的数据处理装置。
本发明基于车载以太网交换机的数据处理方法、装置及计算机系统，具有以下有益效果：本发明技术方案的架构和流程布局清楚简单，大大提高了通讯效率，使得通过同一车载以太网交换机端口的数据能够得以有序传输。
附图说明
图1为承载本发明基于车载以太网交换机的数据处理方法、装置及计算机系统的电气架构网络拓扑图；
图2为本发明基于车载以太网交换机的数据处理方法的整体流程示意图；
图3为本发明基于车载以太网交换机的数据处理装置的结构示意图；
图4为本发明计算机系统的结构示意图。
具体实施方式
下面结合附图及实施例对本发明作进一步的详细描述，但该实施例不应理解为对本发明的限制。
本发明第一方面的一实施例公开了一种基于车载以太网交换机的数据处理方法，包含前后两个阶段：阶段A)获取网络传输报文发送情况，其中所述网络传输报文包括按事件触发发送的报文，按周期发送的报文，以及按照周期事件发送的报文；以及阶段B)基于所述报文传输方式，按报文发送周期类别，将报文存放在不同队列，按周期开关队列门，使报文分别有序的从交换机端口发出。
根据本发明一实施例的车载以太网交换机数据处理方法，其中，所述步骤A)进一步包括：当所述发送到交换机210的报文是事件型时，交换机210将当前传输的周期性报文发送完后，发送事件报文；当所述交换机210接收的是周期型或周期事件型报文时，按照门开关状态有序传输报文。
参见图1，本发明第二方面的一实施例的车载以太网交换机数据处理系统，其中，所述系统总线控制器包括该系统包含1个Switch交换机210控制器、5个ECU 220(ECU1、ECU2、ECU3、ECU4和 ECU5)、两个应用程序(应用程序一240和应用程序二250)、4个报文存储单元230。
其中，ECU1，ECU2，ECU3和ECU4按事件或周期发送以太网报文，报文发送周期，根据功能需求有10ms，20ms，50ms等等。将从交换机210不同接收端口(Port1～Port4)进入的报文，按不同周期分为4类，并存储到4个不同的存储单元230。根据存储单元230开关列表，周期开关4个存储单元230，使报文有序的通过交换机210发送端口(Port5)。
参见图2，本发明基于车载以太网交换机的数据处理方法，包括如下步骤：
在步骤S1中，通过交换机210以太网报文的传输方法，其中所述报文传输方法包括按事件触发发送的报文，按周期发送的报文，以及按照周期事件发送的报文；在步骤S2中，判断所述接收到的以太网报文发送是否按照周期发送。在步骤S3中，检测到事件型报文发送，交换机210应暂停周期型报文传输，传输事件型报文；在步骤S4中根据以太网报文传输周期类型，将同一类报文存放在同一存储器(即图1中的存储单元230)中，根据调度表传输报文。
上述技术方案中，各个ECU220控制器的以太网接口均通过以太网总线连接以太网交换机210Switch，各个ECU220以太网交换机210Switch之间的以太网总线遵循1000BASE-T1通讯协议，通讯速率为1000Mbit/s，以太网交换机210用于实现各个域控制器之间的信息交互。
上述技术方案中，所述各个ECU220控制器和交换机210Switch之间的车载以太网通讯速率不局限于千兆，根据通讯需求，甚至采用千兆以上速率的车载以太网，比如2.5G BASE-T1、5G BASE-T1、以 及10G BASE-T1等。
上述技术方案中，系统中传输的报文数据信息如下：数据流发送节点ECU220：ECU1、ECU2、ECU3、ECU4，报文数据流接收节点ECU220：ECU5。根据实现本发明目的的最低要求，所述数据流发送节点ECU220只需要两个ECU220即能满足基本技术要求，本发明实施例设置了四个数据流发送节点ECU220是最优选择，是在兼顾经济性的基础上实现了效益的最大化。
上述技术方案中，ECU220通过车载以太网协议栈定义报文源MAC地址和目的MAC地址，ECU1、ECU2，ECU3，ECU4源MAC地址分别为01:00:94:00:00:05，01:00:94:00:00:06，01:00:94:00:00:07，01:00:94:00:00:08，ECU5目的MAC地址为01:00:94:00:00:09。
上述技术方案中，交换机210提供给ECU1、ECU2、ECU3、ECU4、ECU5的接口分别为Port1、Port2、Port3、Port4、Port5，交换机210分别从Port1、Port2、Port3、Port4四个接收端口接收以太网报文，从发送端口Port5发出，所述ECU5接收处理。如交换机210不对接收到的报文做处理，在网络负载较高的情况下，有可能造成交换机Port5堵塞，甚至造成传输的报文丢失。
应用程序一240将从交换机210不同端口进入的报文，按表1分为4类，并存储到不同的存储单元230。
表1车载以太网报文分类
上述技术方案中，应用程序二250根据不同报文周期类型，动态配置存储单元230开关列表，如表2所示。根据存储单元230存储报 文周期类型，动态配置开关列表周期T，4个存储单元230按序开关门。从No＝0开始，按照周期开关4个存储单元230，存储单元一230打开，存储在存储单元一230的报文通过Port5传输，其它3个存储单元230关闭。
上述技术方案中，Timeout时间后，No＝1，存储单元二230打开，存储在存储单元二230的报文通过Port5传输，其它3个存储单元230关闭，依次类推，当No＝3，Timeout时间到后，又重新从No＝0开始开关存储单元230。
上述技术方案中，如果数据帧不能在门关闭前发送完成，Switch交换机210必须将该数据帧存在buffer(图中未示出)内，等到下一个开门状态时再发送。
表2存储单元230开关列表
参见图3，本发明基于车载以太网交换机的数据处理装置，包括如下内容：
报文传输启动模块：开始通过交换机210传输以太网报文；
报文类型发送判断模块：判断所述接收到的以太网报文是否是周期型报文，如果是，则传输周期型报文；
报文传送优先模块：如果检测到事件型报文发送，所述交换机210暂停周期型报文传输，传输事件型报文；
报文存储模块：根据以太网报文传输类型，将同一类报文存放在同一存储单元230中，根据调度表传输报文。
参见图4，本发明计算机系统，包括基于车载以太网交换机的数 据处理装置。
本发明的技术关键点和技术原理如下：
1、数据传输按报文类型分别传输；
2、将同一类型报文存放在同一存储单元中，按报文发送周期类别，将报文存放在不同队列，根据调度表按周期开关队列门，使报文分别有序的从交换机210端口发出。
缩略语和关键术语定义：
Ethernet:以太网Ethernet是一种计算机局域网技术。IEEE组织的IEEE 802.3标准制定了以太网的技术标准，它规定了包括物理层的连线、电子信号和介质访问层协议的内容。
100BASE-TX：工业以太网，指的是使用两对非屏蔽双绞线接线或者屏蔽双绞线接线的100Mbit/s基带快速以太网。
100Base-T1:100BASE-T1也叫IEEE802.3bw，它是被IEEE针对百兆车载以太网定义的标准。与传统的百兆以太网(100BASE-TX)不同，100BASE-T1使用的是一对双绞线进行全双工的信息传输。
1000Base-T1:1000BASE-T1也叫IEEE802.3bp，它是被IEEE针对千兆车载以太网定义的标准。与100BASE-T1相同，1000BASE-T1也使用的是一对双绞线进行全双工的信息传输。
Switch:以太网交换机210，是基于以太网传输数据的交换机210。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (10)

  1. 一种基于车载以太网交换机的数据处理方法，应用于车辆的电子设备中，其特征在于：
    开始通过交换机(210)传输以太网报文；
    判断接收到的所述以太网报文是否是周期型报文，如果是，则传输周期型报文；
    如果检测到事件型报文发送，所述交换机(210)暂停周期型报文传输，传输事件型报文。
  2. 根据权利要求1所述的基于车载以太网交换机的数据处理方法，其特征在于：本方法还还包括：
    根据所述以太网报文的传输类型，将同一类报文存放在同一存储单元(230)中，根据调度表传输报文。
  3. 根据权利要求2所述的基于车载以太网交换机的数据处理方法，其特征在于：所述的以太网报文还包括周期事件型报文。
  4. 根据权利要求3所述的基于车载以太网交换机的数据处理方法，其特征在于：所述交换机(210)至少有3个ECU(220)，其中，至少2个ECU(220)作为数据流发送节点，1个ECU(220)作为数据流接收节点。
  5. 根据权利要求4所述的基于车载以太网交换机的数据处理方法，其特征在于：作为数据流发送节点的每个ECU(220)都有对应的存储单元(230)。
  6. 根据权利要求5所述的基于车载以太网交换机的数据处理方法，其特征在于：所述交换机(210)设有与数据流发送节点ECU(220)相连的接收端口、以及将接收端口发来的报文分类存放在对应存储单元(230)的应用程序一(240)。
  7. 根据权利要求6所述的基于车载以太网交换机的数据处理方法，其特征在于：所述交换机(210)设有根据存储单元(230)存储的报文类型动态配置存储单元(230)开关列表周期T、使得报文通过与数据流接收节点ECU(220)的发送端口传送出去的应用程序二(250)。
  8. 根据权利要求7所述的基于车载以太网交换机的数据处理方法，其特征在于：如果数据帧不能在存储单元(230)门关闭前发送完成，所述交换机(210)必须将该数据帧存在buffer内，等到下一个开门状态时再发送。
  9. 一种基于车载以太网交换机的数据处理装置，包括计算机程序，其特征在于：该计算机程序能够执行如权利要求1～8所述的基于车载以太网交换机的数据处理方法。
  10. 一种计算机系统，其特征在于：包括如权利要求9所述的基于车载以太网交换机的数据处理装置。
PCT/CN2024/101966 2023-07-03 2024-06-27 一种基于车载以太网交换机的数据处理方法、装置及计算机系统 Ceased WO2025007797A1 (zh)

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CN111245776A (zh) * 2019-10-10 2020-06-05 中国第一汽车股份有限公司 车载数据传输方法、装置、设备和存储介质
CN113259200A (zh) * 2021-05-18 2021-08-13 东风汽车集团股份有限公司 车载以太网交换机硬件测试方法、装置、设备及存储介质
CN115499372A (zh) * 2022-09-14 2022-12-20 重庆长安汽车股份有限公司 车载以太网端到端链路的延迟控制方法、装置及车辆
CN115766617A (zh) * 2022-11-04 2023-03-07 网络通信与安全紫金山实验室 报文调度方法、装置、设备、存储介质和程序产品

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CN111245776A (zh) * 2019-10-10 2020-06-05 中国第一汽车股份有限公司 车载数据传输方法、装置、设备和存储介质
CN113259200A (zh) * 2021-05-18 2021-08-13 东风汽车集团股份有限公司 车载以太网交换机硬件测试方法、装置、设备及存储介质
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