CN116781561A - Automobile LIN network error processing test system and method - Google Patents

Automobile LIN network error processing test system and method Download PDF

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Publication number
CN116781561A
CN116781561A CN202310808601.4A CN202310808601A CN116781561A CN 116781561 A CN116781561 A CN 116781561A CN 202310808601 A CN202310808601 A CN 202310808601A CN 116781561 A CN116781561 A CN 116781561A
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CN
China
Prior art keywords
test
lin
data
lin network
network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310808601.4A
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Chinese (zh)
Inventor
陆昊楠
王邵龙
姬楠
赵跃
张鹏
张万友
赵伟博
谷原野
孙运玺
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FAW Bestune Car Co Ltd
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FAW Bestune Car Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FAW Bestune Car Co Ltd filed Critical FAW Bestune Car Co Ltd
Priority to CN202310808601.4A priority Critical patent/CN116781561A/en
Publication of CN116781561A publication Critical patent/CN116781561A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • 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
    • H04L12/40169—Flexible bus arrangements
    • H04L12/40176—Flexible bus arrangements involving redundancy
    • H04L12/40195—Flexible bus arrangements involving redundancy by using a plurality of nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/06—Generation of reports
    • H04L43/065—Generation of reports related to network devices
    • 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
    • H04L2012/40234—Local Interconnect Network LIN
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The application discloses an automobile LIN network error processing test system and method, which belong to the technical field of automobile LIN networks and comprise the following steps: the LIN bus simulator is used for simulating the communication environment of an automobile LIN network and comprises a master node for sending data and a slave node for receiving data; the error data injection module is used for injecting different types of errors and anomalies into the LIN network according to the proportion set by the user; the data acquisition module is used for collecting response data of all the ECUs, detecting signals on the bus and transmitting the signals to the automatic execution test unit for processing; and the automated execution test unit is used for calling the LIN bus simulator, the error data injection module and the data acquisition module to execute automated test so as to obtain an automated test result.

Description

Automobile LIN network error processing test system and method
Technical Field
The application discloses an automobile LIN network error processing test system and method, and belongs to the technical field of automobile LIN networks.
Background
In automotive electronics, the LIN bus is a common data communication protocol. In order to ensure the normal operation of the automotive electronics, test and diagnosis of messages transmitted by the LIN bus are required. Many LIN bus network error handling test methods and systems exist today, but the prior art has the following problems:
1. the efficiency is low: the existing LIN network testing method mainly relies on manual inspection or special equipment, is complex in operation and low in efficiency, and is difficult to meet the rapid pace of modern automobile production.
2. The cost is high: the existing LIN network test equipment is high in price, and most of the equipment can only be used for automobiles of specific types independently and cannot be adapted to automobiles of different types.
3. Cannot cover all working conditions: the existing test method is often only capable of testing a part of conditions, and cannot comprehensively and effectively test all possible conditions.
Therefore, there is a need for an efficient, low cost, wide coverage LIN bus network error handling test method and system that better meets the requirements of modern automotive production.
Disclosure of Invention
The application aims to solve the problems that the existing LIN bus network error processing test method and system are low in efficiency and high in cost and cannot cover all working conditions, and provides an automobile LIN network error processing test system and method.
The application aims to solve the problems, which are realized by the following technical scheme:
according to a first aspect of an embodiment of the present application, there is provided an automotive LIN network error handling test system, including:
the LIN bus simulator is used for simulating the communication environment of an automobile LIN network and comprises a master node for sending data and a slave node for receiving data;
the error data injection module is used for injecting different types of errors and anomalies into the LIN network according to the proportion set by the user;
the data acquisition module is used for collecting response data of all the ECUs, detecting signals on the bus and transmitting the signals to the automatic execution test unit for processing;
and the automated execution test unit is used for calling the LIN bus simulator, the error data injection module and the data acquisition module to execute automated test so as to obtain an automated test result.
Preferably, the simulating manufacturing of the different working conditions by the error data injection module at least comprises: the PID field, sync field, data field, cheksum field, and interference signal of the interference data make frame structure errors.
Preferably, the automated execution test unit is further configured to automatically index a test result basis.
According to a second aspect of the embodiment of the present application, there is provided an automotive LIN network error handling test method, for use in the automotive LIN network error handling test system of the first aspect, including:
step S10, a test system is established, and test conditions are configured;
step S20, simulating abnormal conditions, and recording an automatic test result in a test network communication process;
and step S30, extracting key information according to the automatic test result and generating an automatic test report.
Preferably, the step S10 includes:
and (3) building a test platform with an abnormal condition simulation function, wherein the test platform comprises hardware equipment and a software program, and the test system is connected with the LIN network of the ECU to be tested and test conditions are set.
Preferably, the test conditions include at least: LIN network status, transmission speed, data to be transmitted.
Preferably, the step S20 includes:
injecting different types of errors and anomalies into the LIN network according to the proportion set by a user through a test platform, and simulating and manufacturing different working conditions;
and randomly generating an abnormal file, transmitting the abnormal file and the normal file to an ECU to be tested, testing LIN network error data by using a test platform, detecting the processing condition of the error message by the controller, and recording a test result.
Compared with the prior art, the application has the following beneficial effects:
the application discloses an automobile LIN network error processing test system and method, which are used for connecting test equipment with an LIN network of an ECU to-be-tested controller, sending various types of error messages, simulating various abnormal conditions of an automobile LIN bus network, testing and verifying the error processing capability of the ECU, thereby being capable of truly simulating the actual conditions of the automobile LIN network, detecting the fault tolerance capability of the ECU, meeting the requirements on error detection and processing in the automobile development and manufacturing process, and having the advantages of accuracy, reliability, repeatability and the like.
Drawings
Fig. 1 is a schematic structural diagram of an automotive LIN network error handling test system according to the present application.
Fig. 2 is a flow chart of a method for testing the fault handling of an automotive LIN network according to the present application.
Detailed Description
The application is further described below with reference to fig. 1 and 2:
the following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, a first embodiment of the present application provides an automotive LIN network error handling test system based on the prior art, including:
the LIN bus simulator is used for simulating the communication environment of an automobile LIN network and comprises a master node for sending data and a slave node for receiving data;
the error data injection module is used for injecting different types of errors and anomalies into the LIN network according to the proportion set by the user; the data acquisition module is used for collecting response data of all ECUs, detecting signals on the bus and transmitting the signals to the automatic execution test unit for processing; and the automated execution test unit is used for calling the LIN bus simulator, the error data injection module and the data acquisition module to execute automated test so as to obtain an automated test result.
The simulation of the error data injection module to manufacture different working conditions at least comprises the following steps: the PID field, sync field, data field, cheksum field, and interference signal of the interference data make frame structure errors. The automated execution test unit may also be configured to automatically index test result bases.
As shown in fig. 2, a second embodiment of the present application provides, based on the first embodiment, a method for testing an automotive LIN network error handling, including:
step S10, a test system is established, test conditions are configured, and the specific contents are as follows:
the method comprises the steps of building a test platform with an abnormal condition simulation function, wherein the test platform comprises hardware equipment and a software program, connecting a test system with an LIN network of an ECU to be tested, and setting test conditions, wherein the test conditions at least comprise: LIN network status, transmission speed, data to be transmitted.
Step S20, simulating abnormal conditions, and recording an automatic test result in a test network communication process, wherein the specific contents are as follows:
injecting different types of errors and anomalies into the LIN network according to the proportion set by a user through a test platform, and simulating and manufacturing different working conditions;
and randomly generating an abnormal file, transmitting the abnormal file and the normal file to an ECU to be tested, testing LIN network error data by using a test platform, detecting the processing condition of the error message by the controller, and recording a test result.
And step S30, extracting key information according to the automatic test result and generating an automatic test report.
A third embodiment of the present application provides a terminal on the basis of the second embodiment, including: the terminal may be a portable mobile terminal such as: smart phone, tablet computer. Terminals may also be referred to by other names, user equipment, portable terminals, etc.
Generally, the terminal includes: a processor and a memory.
The processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor may also include a main processor, which is a processor for processing data in an awake state, also called a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor may incorporate a GPU (Graphics Processing Unit, image processor) for rendering and rendering of content required to be displayed by the display screen. In some embodiments, the processor may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.
The memory may include one or more computer-readable storage media, which may be tangible and non-transitory. The memory may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory is used to store at least one instruction for execution by a processor to implement an automotive LIN network error handling test method provided in the present application.
In some embodiments, the terminal may further optionally include: a peripheral interface and at least one peripheral. Specifically, the peripheral device includes: at least one of a radio frequency circuit, a touch display screen, a camera, an audio circuit, a positioning component and a power supply.
The peripheral interface may be used to connect at least one Input/Output (I/O) related peripheral to the processor and the memory. In some embodiments, the processor, memory, and peripheral interfaces are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor, memory, and peripheral interface may be implemented on separate chips or circuit boards, which is not limiting in this embodiment.
The Radio Frequency circuit is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuit communicates with the communication network and other communication devices via electromagnetic signals. The radio frequency circuit converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit comprises: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuitry may also include NFC (Near Field Communication, short range wireless communication) related circuitry, which is not limited by the present application.
The touch display screen is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. Touch display screens also have the ability to collect touch signals at or above the surface of the touch display screen. The touch signal may be input to the processor for processing as a control signal. The touch display is used to provide virtual buttons and/or virtual keyboards, also known as soft buttons and/or soft keyboards. In some embodiments, the touch display screen may be one, and a front panel of the terminal is provided; in other embodiments, the touch display screen may be at least two, and is respectively disposed on different surfaces of the terminal or in a folded design; in still other embodiments, the touch display may be a flexible display disposed on a curved surface or a folded surface of the terminal. Even more, the touch display screen may be arranged in an irregular pattern other than rectangular, i.e. a shaped screen. The touch display screen may be made of LCD (Liquid Crystal Display ), OLED (Organic Light-Emitting Diode) or other materials.
The camera assembly is used for acquiring images or videos. Optionally, the camera assembly includes a front camera and a rear camera. In general, a front camera is used for realizing video call or self-photographing, and a rear camera is used for realizing photographing of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and the rear cameras are any one of a main camera, a depth camera and a wide-angle camera, so as to realize fusion of the main camera and the depth camera to realize a background blurring function, and fusion of the main camera and the wide-angle camera to realize a panoramic shooting function and a Virtual Reality (VR) shooting function. In some embodiments, the camera assembly may further include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
The audio circuit is for providing an audio interface between the user and the terminal. The audio circuit may include a microphone and a speaker. The microphone is used for collecting sound waves of users and the environment, converting the sound waves into electric signals and inputting the electric signals to the processor for processing, or inputting the electric signals to the radio frequency circuit for realizing voice communication. For the purpose of stereo acquisition or noise reduction, a plurality of microphones can be respectively arranged at different parts of the terminal. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor or radio frequency circuitry into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit may also include a headphone jack.
The location component is used to locate the current geographic location of the terminal to enable navigation or LBS (Location Based Service, location based services). The positioning component may be a positioning component based on the united states GPS (Global Positioning System ), the chinese beidou system or the russian galileo system.
The power supply is used for supplying power to various components in the terminal. The power source may be alternating current, direct current, disposable or rechargeable. When the power source comprises a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
A fourth embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method for testing an automotive LIN network error handling as provided by all the inventive embodiments of the present application.
Any combination of one or more computer readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Although embodiments of the application have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present application. Additional modifications will readily occur to those skilled in the art. Therefore, the application is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (7)

1. An automotive LIN network error handling test system, comprising:
the LIN bus simulator is used for simulating the communication environment of an automobile LIN network and comprises a master node for sending data and a slave node for receiving data;
the error data injection module is used for injecting different types of errors and anomalies into the LIN network according to the proportion set by the user;
the data acquisition module is used for collecting response data of all the ECUs, detecting signals on the bus and transmitting the signals to the automatic execution test unit for processing;
and the automated execution test unit is used for calling the LIN bus simulator, the error data injection module and the data acquisition module to execute automated test so as to obtain an automated test result.
2. The system for testing the network error handling of an automotive LIN of claim 1, wherein the means for simulating different operating conditions of the error data injection module comprises at least: the PID field, sync field, data field, cheksum field, and interference signal of the interference data make frame structure errors.
3. The automotive LIN network error handling test system of claim 1 or 2, wherein the automated execution test unit is further configured to automatically index test result basis.
4. An automotive LIN network error handling test method for an automotive LIN network error handling test system as claimed in any one of claims 1 to 3, comprising:
step S10, a test system is established, and test conditions are configured;
step S20, simulating abnormal conditions, and recording an automatic test result in a test network communication process;
and step S30, extracting key information according to the automatic test result and generating an automatic test report.
5. The method for testing the LIN network error handling of the automobile according to claim 4, wherein said step S10 comprises:
and (3) building a test platform with an abnormal condition simulation function, wherein the test platform comprises hardware equipment and a software program, and the test system is connected with the LIN network of the ECU to be tested and test conditions are set.
6. The method for testing the network error handling of an automotive LIN according to claim 5, characterized in that said test conditions comprise at least: LIN network status, transmission speed, data to be transmitted.
7. The method for testing the LIN network error handling of an automobile according to claim 4, wherein said step S20 comprises:
injecting different types of errors and anomalies into the LIN network according to the proportion set by a user through a test platform, and simulating and manufacturing different working conditions;
and randomly generating an abnormal file, transmitting the abnormal file and the normal file to an ECU to be tested, testing LIN network error data by using a test platform, detecting the processing condition of the error message by the controller, and recording a test result.
CN202310808601.4A 2023-07-04 2023-07-04 Automobile LIN network error processing test system and method Pending CN116781561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310808601.4A CN116781561A (en) 2023-07-04 2023-07-04 Automobile LIN network error processing test system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310808601.4A CN116781561A (en) 2023-07-04 2023-07-04 Automobile LIN network error processing test system and method

Publications (1)

Publication Number Publication Date
CN116781561A true CN116781561A (en) 2023-09-19

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Application Number Title Priority Date Filing Date
CN202310808601.4A Pending CN116781561A (en) 2023-07-04 2023-07-04 Automobile LIN network error processing test system and method

Country Status (1)

Country Link
CN (1) CN116781561A (en)

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