

技术领域technical field
本发明涉及车辆智能联网技术领域,尤其涉及一种车载以太网通信系统的测试装置及测试方法。The invention relates to the technical field of vehicle intelligent networking, in particular to a test device and a test method for a vehicle Ethernet communication system.
背景技术Background technique
随着驾驶辅助系统(ADAS)、信息娱乐系统等技术的发展,对车载网络带宽的要求越来越高,已经超出了CAN、CANFD等传统网络的承载能力,为了满足智能网联汽车的开发要求,车载以太网技术已经成为下一代车载网络架构的趋势之一。而车载网络架构开发是整车开发的重要内容,多种网络协议的应用使得网络架构越来越复杂,开发复杂度和周期也相应延长,影响车型开发节点及质量。现有技术中车载网络通讯测试过程中,各种通信类型的工作原理和机制各不相同又相互联系,各个系统独立讲解效率低、效果差。With the development of technologies such as driver assistance systems (ADAS) and infotainment systems, the requirements for in-vehicle network bandwidth are getting higher and higher, which has exceeded the carrying capacity of traditional networks such as CAN and CANFD. In order to meet the development requirements of intelligent networked vehicles , Vehicle Ethernet technology has become one of the trends of the next generation vehicle network architecture. The development of in-vehicle network architecture is an important part of vehicle development. The application of various network protocols makes the network architecture more and more complex, and the development complexity and cycle are correspondingly extended, which affects the development nodes and quality of vehicle models. In the vehicle-mounted network communication test process in the prior art, the working principles and mechanisms of various communication types are different and interrelated, and the independent explanation of each system is low in efficiency and poor in effect.
发明内容Contents of the invention
本发明主要目的在于提供一种车载以太网通信系统的测试装置及测试方法,通过构架简易的通信系统,使得整车开发复杂度和周期缩短,并且能够实现多种协议间的信号路由,保证车载通信正常工作,同时还能有效测试通信效果,极大的缩短了网络架构系统的开发及验证周期。The main purpose of the present invention is to provide a test device and test method for a vehicle-mounted Ethernet communication system. Through a communication system with a simple structure, the complexity and cycle of vehicle development can be shortened, and signal routing between various protocols can be realized to ensure that the vehicle-mounted The communication works normally, and at the same time, it can effectively test the communication effect, which greatly shortens the development and verification cycle of the network architecture system.
第一方面,本申请提供了一种车载以太网通信系统的测试装置,该装置包括:网关;In a first aspect, the present application provides a test device for a vehicle-mounted Ethernet communication system, the device comprising: a gateway;
CAN节点单元,其通过信号开关控制的多个信号路由通道与所述网关连接;CAN node unit, which is connected to the gateway through a plurality of signal routing channels controlled by signal switches;
SOME/IP节点,其与所述网关连接,用于相关的信号路由通道开通时,接收所述网关转发的SOME/IP报文;A SOME/IP node, which is connected to the gateway, is used to receive the SOME/IP message forwarded by the gateway when the relevant signal routing channel is opened;
CANFD节点,其与所述网关连接,用于相关的信号路由通道开通时,接收所述网关转发的CANFD报文。A CANFD node, which is connected to the gateway, is used to receive the CANFD message forwarded by the gateway when the relevant signal routing channel is opened.
结合上述第一方面,作为一种可选的实现方式,所述CAN节点单元,包括:In combination with the first aspect above, as an optional implementation, the CAN node unit includes:
第一CAN节点,其与第一开关、第二开关和灯带连接,用于采集所述第一开关和第二开关的信号;a first CAN node, which is connected to the first switch, the second switch and the light strip, and is used to collect signals of the first switch and the second switch;
第二CAN节点,其与第三开关和第二指示灯连接,用于采集所述第三开关信号;A second CAN node, which is connected to the third switch and the second indicator light, and is used to collect the third switch signal;
第三CAN节点,其与第四开关和第三指示灯连接,用于采集所述第四开关信号。The third CAN node is connected to the fourth switch and the third indicator light, and is used to collect the fourth switch signal.
结合上述第一方面,作为一种可选的实现方式,所述第一开关,其用于唤醒所述第一CAN节点和所述第二CAN节点,并通过所述第一CAN节点,将自身信号发送至所述第二CAN节点,根据所述第二指示灯的亮灭判断所述第二CAN节点是否唤醒成功;In combination with the first aspect above, as an optional implementation, the first switch is used to wake up the first CAN node and the second CAN node, and through the first CAN node, switch itself The signal is sent to the second CAN node, and it is judged whether the second CAN node wakes up successfully according to the on and off of the second indicator light;
所述第二开关,其用于唤醒所述第一CAN节点和所述第三CAN节点,并通过所述第一CAN节点,将自身信号发送至所述第三CAN节点,根据所述第三指示灯的亮灭判断所述第三CAN节点是否唤醒成功;The second switch is used to wake up the first CAN node and the third CAN node, and send its own signal to the third CAN node through the first CAN node, according to the third Judging whether the third CAN node wakes up successfully by turning on and off the indicator light;
所述第三开关,其用于将所述第二CAN节点采集的开关信号发送至所述网关;The third switch is configured to send the switch signal collected by the second CAN node to the gateway;
所述第四开关,其用于将所述第三CAN节点采集的开关信号发送至所述网关。The fourth switch is configured to send the switch signal collected by the third CAN node to the gateway.
结合上述第一方面,作为一种可选的实现方式,当所述第一开关唤醒所述第一CAN节点和第二CAN节点后,通过所述第二CAN节获取所述第三开关信号,并将所述第三开关信号以SOME/IP报文发送至以太网SOME/IP节点;In combination with the first aspect above, as an optional implementation manner, after the first switch wakes up the first CAN node and the second CAN node, the third switch signal is acquired through the second CAN node, and sending the third switch signal to the Ethernet SOME/IP node as a SOME/IP message;
通过与所述SOME/IP节点连接的第四灯带的亮灭,判断网关的CAN-Ethernet信号路由是否成功;By turning on and off the fourth light strip connected to the SOME/IP node, it is judged whether the CAN-Ethernet signal routing of the gateway is successful;
当所述第二开关唤醒所述第一CAN节点和第三CAN节点后,通过所述第三CAN节点获取所述第四开关信号,并将所述第四开关信号以CANFD报文发送至CANFD节点;After the second switch wakes up the first CAN node and the third CAN node, obtain the fourth switch signal through the third CAN node, and send the fourth switch signal to CANFD as a CANFD message node;
通过与所述CANFD节点节点连接的第五灯带的亮灭,判断网关的CAN-CANFD路由是否成功。Whether the CAN-CANFD routing of the gateway is successful is determined by turning on and off the fifth light strip connected to the CANFD node.
结合上述第一方面,作为一种可选的实现方式,还包括:AVB节点单元,其与所述网关连接,用于视频传输。With reference to the first aspect above, as an optional implementation manner, the method further includes: an AVB node unit connected to the gateway for video transmission.
结合上述第一方面,作为一种可选的实现方式,所述AVB节点单元包括:In combination with the first aspect above, as an optional implementation manner, the AVB node unit includes:
摄像头,其用于采集视频信号,并将采集的视频信号通过AVB协议传输至AVB控制器;A camera, which is used to collect video signals, and transmits the collected video signals to the AVB controller through the AVB protocol;
AVB控制器,其用于将所述摄像头采集的视频信号进行数据处理。The AVB controller is used for data processing the video signal collected by the camera.
结合上述第一方面,作为一种可选的实现方式,所述AVB节点单元还包括:In combination with the above first aspect, as an optional implementation manner, the AVB node unit further includes:
显示单元,其用于将所述AVB控制器处理后的视频数据传输至显示屏上进行显示,并通过显示屏上是否产生视频图像验证视频传输是否成功。A display unit, which is used to transmit the video data processed by the AVB controller to the display screen for display, and verify whether the video transmission is successful or not by whether a video image is generated on the display screen.
结合上述第一方面,作为一种可选的实现方式,还包括:诊断单元,其用于通过以太网对所述AVB控制器进行软件刷写,并通过刷写前后显示屏显示内容的变化,判断刷写是否成功。In combination with the above-mentioned first aspect, as an optional implementation, it also includes: a diagnostic unit, which is used to perform software flashing on the AVB controller through Ethernet, and through the change of the content displayed on the display screen before and after flashing, Determine whether the flashing is successful.
第二方面,本申请提供了一种如权利要求1所述的一种车载以太网通信系统的测试方法,该方法包括:In a second aspect, the present application provides a method for testing a vehicle-mounted Ethernet communication system as claimed in claim 1, the method comprising:
与所述以太网通信架构系统连接的测试设备,其中所述设备包括:The test equipment connected with the Ethernet communication framework system, wherein the equipment includes:
PMA测试单元,其用于将所述PMA测试单元的接口与所述以太网通讯构架系统连接,以对所述以太网通讯构架系统的物理层进行测试;A PMA test unit, which is used to connect the interface of the PMA test unit with the Ethernet communication framework system, so as to test the physical layer of the Ethernet communication framework system;
IOP测试单元,其用于将所述IOP测试单元的测试接口与所述以太网通讯架构系统接口连接,以对所述以太网通讯构架系统的物理层的信号质量及诊断测试;IOP test unit, which is used to connect the test interface of the IOP test unit with the interface of the Ethernet communication framework system, so as to test the signal quality and diagnosis of the physical layer of the Ethernet communication framework system;
以太网分析仪,其用于将所述以太网分析仪的接口与所以太网通讯架构系统接口连接,以对所以太网通讯架构系统的链路层及协议一致性测试;An Ethernet analyzer, which is used to connect the interface of the Ethernet analyzer with the interface of the Ethernet communication architecture system, so as to test the link layer and protocol consistency of the Ethernet communication architecture system;
以太网/CAN接口设备,其用于将所述以太网/CAN接口设备的接口与所述太网通讯架构系统连接,以对所述太网通讯架构系统的应用层基础进行测试。The Ethernet/CAN interface device is used to connect the interface of the Ethernet/CAN interface device with the Ethernet communication framework system, so as to test the application layer foundation of the Ethernet communication framework system.
结合上述第二方面,作为一种可选的实现方式,所述PMA测试单元,还包括:In combination with the second aspect above, as an optional implementation, the PMA test unit further includes:
测试桥盒,所述测试桥盒设有多个连接端口,其中所述太网通讯架构系统通过以太网接口连接至所述测试桥盒不同输入端口;A test bridge box, the test bridge box is provided with a plurality of connection ports, wherein the Ethernet communication architecture system is connected to different input ports of the test bridge box through an Ethernet interface;
测试仪器,其用于与所述测试桥盒输出端口连接,并根据选择的测试项目将所述太网通讯架构系统连接至所述测试桥盒对应的端口,以对所述太网通讯架构系统进行测试。A test instrument, which is used to connect to the output port of the test bridge box, and connect the Ethernet communication framework system to the corresponding port of the test bridge box according to the selected test item, so as to test the Ethernet communication framework system carry out testing.
本申请提供的一种车载以太网通信系统的测试装置及测试方法,其中所述车载以太网通信系统的测试装置,包括:网关;CAN节点单元,其通过信号开关控制的多个信号路由通道与所述网关连接;SOME/IP节点,其与所述网关连接,用于相关的信号路由通道开通时,接收所述网关转发的SOME/IP报文;CANFD节点,其与所述网关连接,用于相关的信号路由通道开通时,接收所述网关转发的CANFD报文。本申请通过构架简易的通信系统,使得整车开发复杂度和周期缩短,并且能够实现多种协议间的信号路由,保证车载通信正常工作,同时还能有效测试通信效果,极大的缩短了网络架构系统的开发及验证周期。A test device and a test method of a vehicle-mounted Ethernet communication system provided by the present application, wherein the test device of the vehicle-mounted Ethernet communication system includes: a gateway; a CAN node unit, which is connected to a plurality of signal routing channels controlled by a signal switch Described gateway is connected; SOME/IP node, it is connected with described gateway, when being used for relevant signal routing channel opening, receives the SOME/IP message forwarded by described gateway; CANFD node, it is connected with described gateway, uses When the relevant signal routing channel is opened, receive the CANFD message forwarded by the gateway. This application uses a simple communication system to shorten the complexity and cycle of vehicle development, and can realize signal routing between multiple protocols to ensure the normal operation of vehicle communication. At the same time, it can also effectively test the communication effect, which greatly shortens the network time. Architecture system development and verification cycle.
应当理解的是,以上的一般描述和后文的细节描述仅是示例性的,并不能限制本发明。It is to be understood that both the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.
附图说明Description of drawings
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本发明的实施例,并于说明书一起用于解释本发明的原理。The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.
图1为本申请实施例中提供的一种车载以太网通信系统的测试装置示意图;FIG. 1 is a schematic diagram of a test device for a vehicle-mounted Ethernet communication system provided in an embodiment of the present application;
图2为本申请实施例中提供的一种以太网架构的测试整体结构原理图。FIG. 2 is a schematic diagram of an overall test structure of an Ethernet architecture provided in an embodiment of the present application.
具体实施方式Detailed ways
这里将详细地对示例性实施例执行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
此外,附图仅为本公开的示意性图解,并非一定是按比例绘制。附图所示的一些方框图是功能实体,不一定必须与物理或逻辑上独立的实体相对应。Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities.
以下结合附图对本申请的实施例作进一步详细说明。Embodiments of the present application will be described in further detail below in conjunction with the accompanying drawings.
参照图1,图1所示为本发明提供的一种车载以太网通信系统的测试装置示意图,如图1所示包括:第一CAN节点(CAN1节点)、第二CAN节点(CAN2节点)、第三CAN节点(CAN3节点)、第一开关(开关1)、第二开关(开关2)、第三开关(开关3)、第四开关(开关4)、第一指示灯(指示灯1)、第二指示灯(指示灯2)、第三指示灯(指示灯3)、第四指示灯(指示灯4)、第五指示灯(指示灯5)、SOME/IP节点、CANFD节点、AVB节点、显示器和以太网摄像头。With reference to Fig. 1, Fig. 1 shows the schematic diagram of a test device of a kind of vehicular Ethernet communication system provided by the present invention, comprises as shown in Fig. 1: the first CAN node (CAN1 node), the second CAN node (CAN2 node), The third CAN node (CAN3 node), the first switch (switch 1), the second switch (switch 2), the third switch (switch 3), the fourth switch (switch 4), the first indicator light (light 1) , the second indicator light (indicator 2), the third indicator light (indicator 3), the fourth indicator light (indicator 4), the fifth indicator light (indicator 5), SOME/IP node, CANFD node, AVB Nodes, displays and Ethernet cameras.
具体而言,为解决车载网络通讯测试过程中,各种通信类型的工作原理和机制各不相同又相互联系,各个系统独立讲解效率低、效果差的问题,本发明提供的简易测试系统由两大部分组成,分别为以太网通信架构系统和测试系统。Specifically, in order to solve the problem that in the vehicle-mounted network communication test process, the working principles and mechanisms of various communication types are different and interrelated, and each system independently explains the problem of low efficiency and poor effect, the simple test system provided by the present invention consists of two Most of the components are Ethernet communication architecture system and test system.
其中以太网通信架构系统的构成是通过将CAN节点、CANFD节点、SOME/IP节点、AVB节点连接成一个整体,以组成以太网系统架构,通过简单的操作可以验证各个节点间正常通信是否实现,为以太网测试提供基础环境。Among them, the composition of the Ethernet communication architecture system is to connect CAN nodes, CANFD nodes, SOME/IP nodes, and AVB nodes into a whole to form an Ethernet system architecture. Through simple operations, it can be verified whether the normal communication between each node is realized. Provide a basic environment for Ethernet testing.
需要说明的是,以太网通信架构系统具体包括供电单元、CAN节点(CAN节点单元)、CANFD节点、以太网SOME/IP节点,网关、AVB子系统(AVB节点单元)、若干灯带和开关,还需说明的是,系统支持100BASE-T1/TX、CAN和CANFD总线协议,支持AVB视频传输,SOME/IP控制命令传输、信号路由、AVB软件包刷写、Autosar网络管理等。It should be noted that the Ethernet communication architecture system specifically includes a power supply unit, a CAN node (CAN node unit), a CANFD node, an Ethernet SOME/IP node, a gateway, an AVB subsystem (AVB node unit), several light strips and switches, It should also be noted that the system supports 100BASE-T1/TX, CAN and CAN FD bus protocols, supports AVB video transmission, SOME/IP control command transmission, signal routing, AVB software package flashing, Autosar network management, etc.
测试系统,包括ETH/CAN接口设备、以太网分析仪、物理层IOP测试单元、物理层PMA测试单元等,测试系统通过上位机控制测试设备,实现对车载以太网控制器1-7层(物理层、数据链路层、网络层、传输层、会话层、表示层、应用层)的一致性、功能和性能测试。The test system includes ETH/CAN interface equipment, Ethernet analyzer, physical layer IOP test unit, physical layer PMA test unit, etc. The test system controls the test equipment through the host computer to realize the 1-7 layers of the vehicle Ethernet controller (physical layer, data link layer, network layer, transport layer, session layer, presentation layer, application layer) conformance, functional and performance testing.
进一步的,网关(Gateway)又称网间连接器、协议转换器。网关在网络层以上实现网络互连,是复杂的网络互连设备,仅用于两个高层协议不同的网络互连。可以理解的是,CAN网络和以太网之间通过网关进行接通,从而建立两者之间通信。Further, a gateway is also called a gateway or a protocol converter. The gateway implements network interconnection above the network layer. It is a complex network interconnection device and is only used for the interconnection of two networks with different high-level protocols. It can be understood that the CAN network and the Ethernet are connected through a gateway, so as to establish communication between the two.
一实施例中,CAN节点单元,其通过信号开关控制的多个信号路由通道与所述网关连接,可以理解的是,架构系统中通过开启不同的电源开关唤醒不同的CAN节点,实现CAN网络管理功能,通过指示灯的点亮情况来判断节点的休眠与唤醒。In one embodiment, the CAN node unit is connected to the gateway through a plurality of signal routing channels controlled by signal switches. It can be understood that different CAN nodes are awakened by turning on different power switches in the architecture system to realize CAN network management. Function, judge the dormancy and wake-up of the node through the lighting of the indicator light.
一实施例中,CAN节点单元包括:第一CAN节点、第二CAN节点和第三CAN节点,其中第一CAN节点,其与第一开关、第二开关和灯带连接,用于采集所述第一开关和第二开关的信号,并将采集的第一开关和第二开关的信号发送给网关。In one embodiment, the CAN node unit includes: a first CAN node, a second CAN node, and a third CAN node, wherein the first CAN node is connected to the first switch, the second switch, and the light strip for collecting the signals of the first switch and the second switch, and send the collected signals of the first switch and the second switch to the gateway.
第二CAN节点,其与第三开关和第二指示灯连接,用于采集所述第三开关信号,并将采集的第三开关信号发送给网关。The second CAN node, which is connected to the third switch and the second indicator light, is used to collect the third switch signal, and send the collected third switch signal to the gateway.
第三CAN节点,其与第四开关和第三指示灯连接,用于采集所述第四开关信号,并将采集的第四开关信号发送给网关。The third CAN node, which is connected to the fourth switch and the third indicator light, is used to collect the fourth switch signal, and send the collected fourth switch signal to the gateway.
其中,第一开关,其用于唤醒第一CAN节点和第二CAN节点,并通过第一CAN节点,将自身信号发送至第二CAN节点,根据第二指示灯的亮灭判断第二CAN节点是否唤醒成功。Among them, the first switch is used to wake up the first CAN node and the second CAN node, and send its own signal to the second CAN node through the first CAN node, and judge the second CAN node according to the on and off of the second indicator light Whether the wakeup is successful.
第二开关,其用于唤醒第一CAN节点和第三CAN节点,并通过第一CAN节点,将自身信号发送至第三CAN节点,根据第三指示灯的亮灭判断第三CAN节点是否唤醒成功;The second switch is used to wake up the first CAN node and the third CAN node, and sends its own signal to the third CAN node through the first CAN node, and judges whether the third CAN node wakes up according to the on and off of the third indicator light success;
第三开关,其用于将第二CAN节点采集的开关信号发送至网关;A third switch, which is used to send the switch signal collected by the second CAN node to the gateway;
第四开关,其用于将第三CAN节点采集的开关信号发送至所述网关。The fourth switch is used to send the switch signal collected by the third CAN node to the gateway.
方便理解举例说明,图1中三个CAN节点遵循AUTOSAR网络管理协议,其中CAN1作为主节点,分别与CAN2和CAN3组成两个局部网。CAN1通过采集开关1和开关2的信号,发送相应的网络管理报文来控制两个局部网中其他节点的睡眠和唤醒,控制器休眠唤醒可以通过指示灯是否点亮来进行判断。具体操作:系统上电后,按下开关1,CAN1首先被本地唤醒,指示灯1被点亮,同时CAN1根据采集到的开关1信号,发出局部网络管理报文唤醒CAN2,对应的指示灯2被点亮;按下开关2,同样CAN1首先被本地唤醒,CAN1根据采集到的开关2信号,发出网络管理报文唤醒CAN3,对应的指示灯3被点亮。通过上述的操作,实现并验证该车载以太网系统的AUTOSAR局部网络管理功能。For easy understanding, the three CAN nodes in Figure 1 follow the AUTOSAR network management protocol, among which CAN1 is the master node and forms two local networks with CAN2 and CAN3 respectively. CAN1 controls the sleep and wake-up of other nodes in the two local networks by collecting the signals of switch 1 and switch 2 and sending corresponding network management messages. The sleep and wake-up of the controller can be judged by whether the indicator light is on or not. Specific operation: After the system is powered on, press switch 1, CAN1 is first awakened locally, indicator 1 is lit, and at the same time, CAN1 sends a local network management message to wake up CAN2 according to the collected signal of switch 1, and the corresponding indicator 2 is lit; press the switch 2, similarly CAN1 is woken up locally first, CAN1 sends a network management message to wake up CAN3 according to the collected signal of the switch 2, and the corresponding indicator light 3 is lit. Through the above operations, the AUTOSAR local network management function of the vehicle Ethernet system is realized and verified.
可以理解的是,第一CAN节点作为主节点,分别与第二CAN节点和第三CAN节点连接组成两个局域网,其中第一CAN节点上连接有两个开关,即第一开关和第二开关,两个开关都可以唤醒第一CAN节点,当按下第一开关或第二开关时,通过与第一CAN节点连接的第一灯带的亮灭判断第一CAN节点是否唤醒成功,当唤醒成功后,第一CAN节点通过采集第一开关和第二开关的信号,发送相应的网络管理报文来控制两个局部网中第二CAN节点和第三CAN节点的睡眠和唤醒。It can be understood that the first CAN node acts as the master node and is respectively connected to the second CAN node and the third CAN node to form two local area networks, wherein two switches are connected to the first CAN node, namely the first switch and the second switch , both switches can wake up the first CAN node. When the first switch or the second switch is pressed, it can be judged whether the first CAN node is successfully awakened by turning on and off the first light strip connected to the first CAN node. When the wake-up After success, the first CAN node controls the sleep and wakeup of the second CAN node and the third CAN node in the two local networks by collecting the signals of the first switch and the second switch and sending corresponding network management messages.
可以理解的是,因为CAN1是主节点,CAN1和CAN2是一个局部网,CAN1和CAN3也是一个局部网,CAN1采集到开关1的信号,就发出局部网络管理报文,唤醒CAN1和CAN2,如果CAN1采集到开关2的信号,就发出网络管理报文唤醒CAN1和CAN3。It is understandable that because CAN1 is the master node, CAN1 and CAN2 are a local network, and CAN1 and CAN3 are also a local network. When CAN1 collects the signal of switch 1, it sends a local network management message to wake up CAN1 and CAN2. If CAN1 After collecting the signal of switch 2, a network management message is sent to wake up CAN1 and CAN3.
SOME/IP节点,其与所述网关连接,用于相关的信号路由通道开通时,接收所述网关转发的SOME/IP报文,具体而言,CAN节点唤醒后,再通过开启不同的信号开关开通不同的信号路由通道,由网关进行协议转换和传输,实现CAN-CANFD、CAN-Ethernet信号路由功能,并通过指示灯的点亮情况判断路由是否成功,需要说明的是,CAN-Controller AreaNetwork控制器局域网络,CANFD-CAN With Flexible Data-Rate可变速率的CAN网络,GW-GateWay网关控制器,Ethernet-以太网。A SOME/IP node, which is connected to the gateway, is used to receive the SOME/IP message forwarded by the gateway when the relevant signal routing channel is opened. Specifically, after the CAN node wakes up, it turns on different signal switches Open different signal routing channels, the gateway performs protocol conversion and transmission, realizes CAN-CANFD, CAN-Ethernet signal routing functions, and judges whether the routing is successful through the lighting of the indicator light. It should be noted that CAN-Controller AreaNetwork control Device local area network, CANFD-CAN With Flexible Data-Rate variable rate CAN network, GW-GateWay gateway controller, Ethernet-Ethernet.
方便理解举例说明,当第一开关唤醒第一CAN节点和第二CAN节点后,通过第二CAN节获取第三开关信号,并将第三开关信号以SOME/IP报文发送至以太网SOME/IP节点;通过与SOME/IP节点连接的第四灯带的亮灭,判断网关的CAN-Ethernet信号路由是否成功。To facilitate understanding and illustrate, when the first switch wakes up the first CAN node and the second CAN node, the third switch signal is obtained through the second CAN node, and the third switch signal is sent to the Ethernet SOME/IP message as a SOME/IP message. IP node; judge whether the CAN-Ethernet signal routing of the gateway is successful by turning on and off the fourth light strip connected to the SOME/IP node.
当第二开关唤醒所述第一CAN节点和第三CAN节点后,通过第三CAN节点获取第四开关信号,并将第四开关信号以CANFD报文发送至CANFD节点,通过与CANFD节点节点连接的第五灯带的亮灭,判断网关的CAN-CANFD路由是否成功。After the second switch wakes up the first CAN node and the third CAN node, the fourth switch signal is obtained through the third CAN node, and the fourth switch signal is sent to the CANFD node as a CANFD message, and is connected to the CANFD node The fifth light strip of the switch is on or off to judge whether the CAN-CANFD routing of the gateway is successful.
可以理解的是,CAN节点采集开关信号,通过CAN报文发送给网关,网关实现CAN-Ethernet、CAN-CANFD的协议转换和报文转发。网关与SOME/IP节点之间采用SOME/IP协议进行信号传输;网关与CANFD节点之间采用CANFD协议进行信号传输。通过指示灯的亮灭可验证网关的CAN-Ethernet、CAN-CANFD路由是否实现。It can be understood that the CAN node collects the switch signal and sends it to the gateway through the CAN message, and the gateway realizes the protocol conversion and message forwarding of CAN-Ethernet and CAN-CANFD. The SOME/IP protocol is used for signal transmission between the gateway and the SOME/IP node; the CANFD protocol is used for signal transmission between the gateway and the CANFD node. The CAN-Ethernet and CAN-CANFD routing of the gateway can be verified by turning on and off the indicator light.
进一步地,一实施例中,CAN-Ethernet信号路由具体为:系统上电后,按下开关1,首先唤醒CAN1节点和CAN2节点,然后按下开关3,CAN2将采集到的开关3信号,通过CAN报文发送给网关,网关再将此开关信号通过CAN-Ethernet信号路由规则,以SOME/IP报文发送至以太网SOME/IP节点,并点亮指示灯4;在指示灯4亮灭的同时,SOME/IP节点会返回一个SOME/IP报文来标志指示灯的状态,并通过网关的Ethernet-CAN路由规则将此信号路由至CAN2节点。通过上述的操作来可实现并验证此系统的CAN通信、Ethernet通信以及网关的CAN-Ethernet信号路由功能。Further, in one embodiment, the CAN-Ethernet signal routing is specifically: after the system is powered on, press switch 1, first wake up CAN1 node and CAN2 node, and then press switch 3, CAN2 will collect the switch 3 signal through The CAN message is sent to the gateway, and the gateway then passes the switch signal through the CAN-Ethernet signal routing rules, sends the SOME/IP message to the Ethernet SOME/IP node, and lights up the indicator light 4; At the same time, the SOME/IP node will return a SOME/IP message to mark the state of the indicator light, and route this signal to the CAN2 node through the Ethernet-CAN routing rules of the gateway. Through the above operations, the CAN communication, Ethernet communication and CAN-Ethernet signal routing function of the gateway can be realized and verified.
一实施例中,CAN-CANFD信号路由具体为:系统上电后,按下开关2,首先唤醒CAN1节点和CAN3节点,然后按下开关4,CAN3将采集到的开关的信号,以CAN报文发送给网关,网关将此开关信号通过CAN-CANFD信号路由规则,以CANFD报文发送至CANFD节点,并点亮指示灯5。通过上述的操作来验证此系统的CAN通信、CANFD通信以及网关的CAN-CANFD信号路由功能。In one embodiment, the CAN-CANFD signal routing is specifically: after the system is powered on, press the switch 2, first wake up the CAN1 node and the CAN3 node, and then press the switch 4, and the CAN3 will collect the signal of the switch as a CAN message Send it to the gateway, and the gateway will pass the switch signal through the CAN-CANFD signal routing rules, send it to the CANFD node as a CANFD message, and light up the indicator light 5. Through the above operations, verify the CAN communication, CAN FD communication of this system and the CAN-CANFD signal routing function of the gateway.
一实施例中,与网关连接的还包括AVB节点单元,其用于视频传输,具体的,AVB节点单元包括:摄像头(以太网摄像头),其用于采集视频信号,并将采集的视频信号通过AVB协议传输至AVB控制器,AVB控制器,其用于将所述摄像头采集的视频信号进行数据处理。In one embodiment, what is connected with the gateway also includes an AVB node unit, which is used for video transmission. Specifically, the AVB node unit includes: a camera (Ethernet camera), which is used to collect video signals, and pass the collected video signals through The AVB protocol is transmitted to the AVB controller, and the AVB controller is used for data processing the video signal collected by the camera.
进一步的,AVB节点单元还包括:显示单元,其用于将所述AVB控制器处理后的视频数据传输至显示屏上进行显示,并通过显示屏上是否产生视频图像验证视频传输是否成功。Further, the AVB node unit also includes: a display unit, which is used to transmit the video data processed by the AVB controller to the display screen for display, and verify whether the video transmission is successful by whether a video image is generated on the display screen.
可以理解的是,车载以太网系统上电后,摄像头采集视频信号,通过AVB协议传输至AVB节点中,AVB数据在AVB节点中进行同步、拼接等处理后,经过HDMI传输至显示屏上进行显示,通过显示屏上是否产生视频图像来验证视频传输是否成功。It is understandable that after the vehicle-mounted Ethernet system is powered on, the camera collects video signals and transmits them to the AVB node through the AVB protocol. After the AVB data is synchronized and spliced in the AVB node, it is transmitted to the display screen for display via HDMI. , to verify whether the video transmission is successful by whether the video image is generated on the display screen.
需要说明的是,显示器、摄像头、AVB节点之间通过100BASE-T1协议通讯,CAN节点单元与网关之间通过100BASE-T1协议进行通信,网关与SOME/IP节点之前通过100BASE-T1协议进行通信,网关和CANFD节点之间通过CANFD协议进行通信。It should be noted that the display, camera, and AVB nodes communicate through the 100BASE-T1 protocol, the CAN node unit communicates with the gateway through the 100BASE-T1 protocol, and the gateway communicates with the SOME/IP node through the 100BASE-T1 protocol. The communication between the gateway and the CANFD nodes is carried out through the CANFD protocol.
进一步的,还包括诊断单元(以太网诊断单元)通过以太网对所述AVB控制器进行软件刷写,并通过刷写前后显示屏显示内容的变化,判断刷写是否成功。Further, it also includes a diagnostic unit (Ethernet diagnostic unit) to perform software flashing on the AVB controller via Ethernet, and judge whether the flashing is successful through the change of display content before and after flashing.
可以理解的是,AVB节点与网关通过以太网100BASE-T1进行连接,网关通过100BASE-TX与Tester连接,通过以太网对AVB进行软件刷写,观察刷写前后显示屏显示内容的变化,实现DoIP刷写AVB功能。It is understandable that the AVB node and the gateway are connected through Ethernet 100BASE-T1, and the gateway is connected with the Tester through 100BASE-TX, and the AVB software is flashed through the Ethernet, and the change of the display content before and after the flashing is observed to realize DoIP. Flash AVB function.
可以理解的是,依据CAN、CANFD、Ethernet通信协议标准及CAN-Ethernet信号路由机制,设计网关及各个通信节点,购建一个简易的以太网通信的架构及功能验证系统,并配合相关测试设备,实现以太网通信的架构系统的物理层、链路层及应用层的测试,并且以太网通信的架构系统可协助开发人员在早期开展网络架构方案的可行性验证,并在车型开发中进行拓展。开发人员可在此简易架构系统基础上进行节点及功能括展,较早地开展网络架构方案的可行性验证及方案优化,同时测试以太网部件物理层性能及系统通信效果,极大的缩短了网络架构系统的开发及验证周期。It is understandable that, according to CAN, CANFD, Ethernet communication protocol standards and CAN-Ethernet signal routing mechanism, design gateways and various communication nodes, purchase and build a simple Ethernet communication architecture and function verification system, and cooperate with related test equipment, Realize the testing of the physical layer, link layer and application layer of the Ethernet communication architecture system, and the Ethernet communication architecture system can assist developers to carry out early feasibility verification of network architecture solutions and expand them in vehicle development. Developers can expand nodes and functions on the basis of this simple architecture system, carry out feasibility verification and scheme optimization of network architecture schemes earlier, and test the physical layer performance of Ethernet components and system communication effects at the same time, which greatly shortens the time The development and verification cycle of the network architecture system.
参照图2,图2所示为本发明提供的一种以太网架构的测试整体结构原理图,如图2所示,包括:PMA测试单元、IOP测试单元、以太网分析仪、以太网/CAN接口设备、触发工具和上位机(电脑)。With reference to Fig. 2, shown in Fig. 2 is the test overall structure schematic diagram of a kind of Ethernet framework provided by the present invention, as shown in Fig. 2, comprises: PMA test unit, IOP test unit, Ethernet analyzer, Ethernet/CAN Interface device, trigger tool and upper computer (computer).
具体而言,构建的以太网架构系统作为测试对象,将以太网架构系统与相应的测试设备进行连接,组成如图2所示的以太网测试系统,以对以太网通信架构系统进行各层测试。其中连接的测试设备包括:Specifically, the constructed Ethernet architecture system is used as the test object, and the Ethernet architecture system is connected with the corresponding test equipment to form an Ethernet test system as shown in Figure 2, so as to test the Ethernet communication architecture system at various layers . The test equipment connected here includes:
PMA测试单元,其用于将所述PMA测试单元的接口与所述以太网通讯构架系统连接,以对所述以太网通讯构架系统的物理层进行测试。The PMA test unit is used to connect the interface of the PMA test unit with the Ethernet communication framework system, so as to test the physical layer of the Ethernet communication framework system.
其中,PMA测试单元中包含测试桥盒和测试设备,测试桥盒上有多个端口,以太网架构系统通过以太网接口连接至测试桥盒不同输入端口,测试桥盒输出端口再连接至测试设备;不同的测试项目需要在不同的模式下进行,通过连接至简易以太网架构系统的CAN配置工具进行模式配置。Among them, the PMA test unit includes a test bridge box and test equipment. There are multiple ports on the test bridge box. The Ethernet architecture system is connected to different input ports of the test bridge box through the Ethernet interface, and the output port of the test bridge box is connected to the test equipment. ; Different test items need to be carried out in different modes, and the mode configuration is performed through the CAN configuration tool connected to the simple Ethernet architecture system.
方便理解举例说明,首先进行以太网物理层测试配置:通过CAN工具发出指定的LINK使能信号报文,建立起简易以太网架构系统与测试设备的通信,在PMA测试设备上手动选择测试项目,并根据具体的测试项目,将简易以太网架构系统连接至测试桥盒相对应的端口,同时通过CAN配置工具发送测试模式切换请求报文,与测试设备进行匹配,配置成功后,测试设备即可按照设置步骤进行PMA各项测试,输出测试结果和报告。For easy understanding and illustration, firstly perform the Ethernet physical layer test configuration: send the specified LINK enable signal message through the CAN tool, establish the communication between the simple Ethernet architecture system and the test equipment, and manually select the test items on the PMA test equipment. And according to the specific test items, connect the simple Ethernet architecture system to the corresponding port of the test bridge box, and at the same time send the test mode switching request message through the CAN configuration tool to match with the test equipment. After the configuration is successful, the test equipment can be Perform various PMA tests according to the setup steps, and output test results and reports.
测试桥盒,所述测试桥盒设有多个连接端口,其中所述太网通讯架构系统通过以太网接口连接至所述测试桥盒不同输入端口,测试仪器,其用于与所述测试桥盒输出端口连接,并根据选择的测试项目将所述太网通讯架构系统连接至所述测试桥盒对应的端口,以对所述太网通讯架构系统进行测试。可以理解的是,测试仪器和测试桥盒配合使用,用于PMA不同项目的测试,其中测试仪器主要是用来选择不同的测试项目,根据不同的测试项目配置参数,运行测试软件,自动生成测试报告,桥盒是根据测试项目切换测试电路。Test the bridge box, the test bridge box is provided with a plurality of connection ports, wherein the Ethernet communication architecture system is connected to different input ports of the test bridge box through the Ethernet interface, and the test instrument is used to communicate with the test bridge The box output port is connected, and according to the selected test item, the Ethernet communication framework system is connected to the corresponding port of the test bridge box, so as to test the Ethernet communication framework system. It can be understood that the test instrument and the test bridge box are used together to test different items of PMA. The test instrument is mainly used to select different test items, configure parameters according to different test items, run test software, and automatically generate test According to the report, the bridge box switches the test circuit according to the test item.
IOP测试单元,其用于将所述IOP测试单元的测试接口与所述以太网通讯架构系统接口连接,以对所述以太网通讯构架系统的物理层的信号质量及诊断测试。The IOP test unit is used to connect the test interface of the IOP test unit with the interface of the Ethernet communication framework system, so as to test the signal quality and diagnosis of the physical layer of the Ethernet communication framework system.
具体而言,IOP测试内容包含LINKUP、信号质量与诊断测试,不同的测试项目需要手动连接测试设备的不同测试端口。Specifically, the IOP test content includes LINKUP, signal quality and diagnostic tests, and different test items need to be manually connected to different test ports of the test equipment.
具体而言,通过测试仪器选择测试项目,然后将简易以太网架构系统通过以太网接口连接至测试设备的测试端口,CAN接口连接至CAN配置工具,连通后通过RJ45将测试设备与电脑连接,配置测试端口的主从模式,完成测试参数配置后即可开始LINKUP测试,测试设备通过CAN工具发出指定报文唤醒以太网架构系统,然后发送状态请求回读报文读取寄存器状态,以太网架构系统返回状态回读应答报文告知寄存器状态,使用应答信息完成测试参数配置后即可开始信号质量及诊断测试,完成测试后,测试设备自动输出测试结果和报告。Specifically, select the test item through the test instrument, then connect the simple Ethernet architecture system to the test port of the test equipment through the Ethernet interface, connect the CAN interface to the CAN configuration tool, and connect the test equipment to the computer through RJ45 after connection, configure Test the master-slave mode of the port. After completing the test parameter configuration, you can start the LINKUP test. The test device sends a specified message through the CAN tool to wake up the Ethernet architecture system, and then sends a status request to read back the message to read the register status. The Ethernet architecture system Return status The readback response message informs the register status, and the signal quality and diagnostic test can be started after the test parameter configuration is completed using the response information. After the test is completed, the test device automatically outputs the test result and report.
以太网分析仪,其用于将所述以太网分析仪的接口与所以太网通讯架构系统接口连接,以对所以太网通讯架构系统的链路层及协议一致性测试。An Ethernet analyzer, which is used to connect the interface of the Ethernet analyzer with the interface of the Ethernet communication framework system, so as to test the link layer and protocol consistency of the Ethernet communication framework system.
具体而言,以太网协议一致性验证遵循TC8 ECU and Network Test测试规范,将简易以太网架构系统的以太网接口与测试设备的以太网接口通过RJ45相连,根据连线情况完成测试参数配置,并选择相对应的测试项目,完成测试后,测试设备自动输出测试结果和报告。Specifically, the Ethernet protocol conformance verification follows the TC8 ECU and Network Test test specification, connects the Ethernet interface of the simple Ethernet architecture system and the Ethernet interface of the test equipment through RJ45, completes the test parameter configuration according to the connection situation, and Select the corresponding test item, and after the test is completed, the test equipment will automatically output the test results and reports.
以太网/CAN接口设备,其用于将所述以太网/CAN接口设备的接口与所述太网通讯架构系统连接,以对所述太网通讯架构系统的应用层基础进行测试。The Ethernet/CAN interface device is used to connect the interface of the Ethernet/CAN interface device with the Ethernet communication framework system, so as to test the application layer foundation of the Ethernet communication framework system.
触发工具主要是发出指定的LINK使能信号,建立起以太网架构系统与测试设备的通信The trigger tool mainly sends out the specified LINK enable signal to establish the communication between the Ethernet architecture system and the test equipment
具体而言,简易以太网架构系统(以太网架构系统)与应用层测试设备进行连接,系统上电后按照下表1进行端口配置,在验证Ethernet-CAN、Ethernet-CANFD路由功能的同时,通过应用层测试设备分别监控CAN、Ethernet和CANFD通信报文,验证其是否符合信号矩阵要求。Specifically, the simple Ethernet architecture system (Ethernet architecture system) is connected to the application layer test equipment. After the system is powered on, the port configuration is performed according to Table 1 below. While verifying the routing functions of Ethernet-CAN and Ethernet-CANFD, pass The application layer test equipment monitors CAN, Ethernet and CAN FD communication messages respectively to verify whether they meet the requirements of the signal matrix.
表1端口配置表Table 1 Port configuration table
一实施例中,上位机可进行两个不同的软件数据包刷写,验证以太网刷写功能并同步显示刷写进度,具体为:车载以太网系统上电后,显示屏中无logo出现,在上位机中导入带有特定logo的刷写数据包,运行刷写上位机,刷写完成后显示屏中显示带有特定logo的视频图像,说明软件程序成功刷入AVB节点,并可以正常运行。In one embodiment, the upper computer can flash two different software packets, verify the Ethernet flashing function and display the flashing progress synchronously, specifically: after the vehicle-mounted Ethernet system is powered on, no logo appears on the display screen, Import the flashing data package with a specific logo into the host computer, and run the flashing host computer. After the flashing is completed, a video image with a specific logo will be displayed on the display, indicating that the software program has been successfully flashed into the AVB node and can run normally. .
当车载以太网系统上电后,显示屏中出现特定logo,在上位机中导入不带logo的刷写数据包,运行刷写上位机,刷写完成后显示屏中显示不带logo的视频图像,说明软件程序已刷写进AVB节点中,并可以正常运行。When the vehicle-mounted Ethernet system is powered on, a specific logo appears on the display screen. Import the flashing data package without the logo into the host computer, run the flashing host computer, and the video image without the logo will be displayed on the display screen after the flashing is completed. , indicating that the software program has been flashed into the AVB node and can run normally.
需要说明的是,测试桥盒、IOP测试单元、以太网分析仪和以太网/CAN接口设备通过100BASE-T1协议与以太网构架系统进行通信,触发工具是通过CAN总线与以太网架构系统之间建立通信关系。It should be noted that the test bridge box, IOP test unit, Ethernet analyzer and Ethernet/CAN interface equipment communicate with the Ethernet framework system through the 100BASE-T1 protocol, and the trigger tool is through the communication between the CAN bus and the Ethernet framework system. Establish a communication relationship.
可以理解的是,本申请构建了一种基于以太网通信的简易网络架构系统,可在开发早期协助开发及测试人员进行可行性验证,提前发现问题并进行方案优化,缩短开发及验证周期。该方法通过配合相应的测试设备和配置方法,可以直观地了解以太网通信机制,能够快速进行测试。It can be understood that this application builds a simple network architecture system based on Ethernet communication, which can assist developers and testers in feasibility verification in the early stage of development, find problems in advance and optimize solutions, and shorten the development and verification cycle. By cooperating with the corresponding test equipment and configuration method, the method can intuitively understand the communication mechanism of the Ethernet, and can test quickly.
综上所述,本申请提供的一种车载以太网通信系统的测试装置及测试方法,其中所述车载以太网通信系统的测试装置,包括:网关;CAN节点单元,其通过信号开关控制的多个信号路由通道与所述网关连接;SOME/IP节点,其与所述网关连接,用于相关的信号路由通道开通时,接收所述网关转发的SOME/IP报文;CANFD节点,其与所述网关连接,用于相关的信号路由通道开通时,接收所述网关转发的CANFD报文。本申请通过构架简易的通信系统,使得整车开发复杂度和周期缩短,并且能够实现多种协议间的信号路由,保证车载通信正常工作,同时还能有效测试通信效果,极大的缩短了网络架构系统的开发及验证周期。In summary, the application provides a test device and a test method for a vehicle-mounted Ethernet communication system, wherein the test device for the vehicle-mounted Ethernet communication system includes: a gateway; a CAN node unit, which is controlled by a signal switch; A signal routing channel is connected to the gateway; a SOME/IP node, which is connected to the gateway, is used to receive the SOME/IP message forwarded by the gateway when the relevant signal routing channel is opened; a CANFD node, which is connected to the gateway The gateway connection is used to receive the CANFD message forwarded by the gateway when the relevant signal routing channel is opened. This application shortens the complexity and cycle of vehicle development through a simple communication system, and can realize signal routing between multiple protocols to ensure the normal operation of vehicle communication. At the same time, it can also effectively test the communication effect, which greatly shortens the network time. Architecture system development and verification cycle.
以上所述仅是本申请的具体实施方式,使本领域技术人员能够理解或实现本申请。对这些实施例的多种修改对本领域的技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本申请的精神或范围的情况下,在其它实施例中实现。因此,本申请将不会被限制于本文所示的这些实施例,而是要符合与本文所申请的原理和新颖特点相一致的最宽的范围。The above descriptions are only specific implementation manners of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310186522.4ACN116155787A (en) | 2023-02-28 | 2023-02-28 | A test device and test method for a vehicle-mounted Ethernet communication system |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310186522.4ACN116155787A (en) | 2023-02-28 | 2023-02-28 | A test device and test method for a vehicle-mounted Ethernet communication system |
| Publication Number | Publication Date |
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| CN116155787Atrue CN116155787A (en) | 2023-05-23 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310186522.4APendingCN116155787A (en) | 2023-02-28 | 2023-02-28 | A test device and test method for a vehicle-mounted Ethernet communication system |
| Country | Link |
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| CN (1) | CN116155787A (en) |
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