CN119473828A - CAN signal detection method, device, electronic device, storage medium and program product - Google Patents

Abstract

The application relates to the technical field of vehicles, in particular to a CAN signal detection method, a device, electronic equipment, a storage medium and a program product, wherein the method comprises the steps of obtaining a CAN signal matrix and connecting a database of a target vehicle type; the method comprises the steps of selecting a target CAN signal matrix of a target vehicle type according to a database, screening signal parameters of the target CAN signal of the target vehicle type from the CAN signal matrix according to the database connection, identifying a target detection mode of the target CAN signal input by a visual interface, detecting the target CAN signal according to the signal parameters of the target CAN signal and the target detection mode, and determining a target CAN signal acceptance result of the target vehicle type according to a detection result of the target CAN signal. Therefore, the problems of low efficiency, high error rate, long time and the like existing in the related technology are solved by manually writing or adjusting test script verification signals.

Description

CAN signal detection method, CAN signal detection device, electronic equipment, storage medium and program product

Technical Field

The present application relates to the field of vehicle technologies, and in particular, to a method and apparatus for detecting a CAN signal, an electronic device, a storage medium, and a program product.

Background

When the intelligent driving system is developed, the acceptance and test of the signal level of the whole vehicle are carried out, so that the problems that the monitoring signal of a certain part of the vehicle is wrongly reported or the vehicle cannot respond to the control-by-wire handshake and is not controlled due to the fact that the vehicle has faults or the software of the vehicle is wrongly developed and the like are prevented.

In the related art, CAN devices such as CANoE and Zhou Ligong are generally used for accessing a whole vehicle CAN network to test and accept vehicle signals, in the actual execution process, test staff often need to manually write or adjust test scripts to verify signals aiming at different vehicle types and communication matrixes, the time is long, and the risk of signal omission or signal checking errors possibly exists, so that the accuracy of test results is low.

Disclosure of Invention

The application provides a CAN signal detection method, a device, electronic equipment, a storage medium and a program product, which are used for solving the problems of low efficiency, high error rate, long time consumption and the like in the related technology by manually writing or adjusting test script verification signals.

The embodiment of the first aspect of the application provides a CAN signal detection method, which comprises the following steps of obtaining a database connection of a CAN signal matrix and a target vehicle type, screening signal parameters of target CAN signals of the target vehicle type from the CAN signal matrix according to the database connection, identifying a target detection mode of the target CAN signals input by a visual interface, detecting the target CAN signals according to the signal parameters and the target detection mode of the target CAN signals, and determining a target CAN signal acceptance result of the target vehicle type according to the detection result of the target CAN signals.

Optionally, the target detection mode comprises a manual mode and an automatic mode, and the target CAN signal is detected according to the signal parameter of the target CAN signal and the target detection mode.

Optionally, the signal parameter of the target CAN signal includes at least one of a signal ID, a signal name, and a signal value.

Optionally, the manual detection of the target CAN signal according to the signal parameters comprises the steps of inputting a signal ID into a visual interface and detecting the target CAN signal according to the related content of the visual interface display signal ID.

The method comprises the steps of inputting at least one of a signal ID, a signal name and a signal value into a target template, setting target detection duration, giving the target detection duration to a local variable of an automatic detection script, reading the target template through the automatic detection script, reading the signal value through the automatic detection script in each preset period, giving the local variable of the automatic detection script, and determining a detection result of the target CAN signal according to the local variable in each preset period until the current detection duration reaches the target detection duration.

Optionally, after stopping automatic detection when the current detection duration reaches the target detection duration, the method further comprises the step of generating an ending prompt of automatic detection of the target CAN signal.

The embodiment of the second aspect of the application provides a CAN signal detection device which comprises an acquisition module, a screening module and a detection module, wherein the acquisition module is used for acquiring a CAN signal matrix and a database of a target vehicle type, the screening module is used for screening signal parameters of target CAN signals of the target vehicle type from the CAN signal matrix according to the database connection and identifying target detection modes of the target CAN signals input by a visual interface, and the detection module is used for detecting the target CAN signals according to the signal parameters of the target CAN signals and the target detection modes and determining target CAN signal acceptance results of the target vehicle type according to detection results of the target CAN signals.

Optionally, the target detection mode comprises a manual mode and an automatic mode, and the detection module is further used for detecting and manually detecting the target CAN signal according to the signal parameter when the target mode is the manual mode, and detecting and automatically detecting the target CAN signal according to the signal parameter when the target mode is the automatic mode.

Optionally, the signal parameter of the target CAN signal includes at least one of a signal ID, a signal name, and a signal value.

Optionally, the detection module is further used for inputting a signal ID at the visual interface, and detecting a target CAN signal according to the related content of the visual interface display signal ID.

Optionally, the detection module is further configured to import at least one of a signal ID, a signal name, and a signal value into the target template, set a target detection duration, assign the target detection duration to a local variable of the automatic detection script, read the target template by the automatic detection script, and assign the signal value to the local variable of the automatic detection script by the automatic detection script in each preset period, and determine a detection result of the target CAN signal according to the local variable in each preset period until the current detection duration reaches the target detection duration.

Optionally, the CAN signal detection device further comprises a generation module for generating an ending prompt of automatic detection of the target CAN signal after stopping automatic detection when the current detection duration reaches the target detection duration.

An embodiment of the third aspect of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the CAN signal detection method as in the above embodiment.

An embodiment of a fourth aspect of the present application provides a computer-readable storage medium having stored thereon a computer program or instructions that are executed by a processor for implementing the CAN signal detection method as described in the above embodiment.

An embodiment of a fifth aspect of the present application provides a computer program product comprising a computer program or instructions which, when executed, is adapted to carry out the CAN signal detection method of the above-described embodiment.

Therefore, the application has the following beneficial effects:

The embodiment of the application CAN screen the signal parameters of the target CAN signal required by the target vehicle type from the CAN signal matrix, avoid the problems of signal omission, signal checking errors and the like, determine the corresponding test mode according to the selected test mode to detect the target CAN signal, output the checking result, greatly save the time of checking staff, avoid developing the new script writing of the testing staff and be suitable for the CAN signal detection of any vehicle type. Therefore, the problems of low efficiency, high error rate, long time and the like existing in the related technology are solved by manually writing or adjusting test script verification signals.

Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a flowchart of a CAN signal detection method according to an embodiment of the present application;

FIG. 2 is a diagram of an example CAN signal detection provided in accordance with one embodiment of the application;

FIG. 3 is an exemplary diagram of a CAN signal detection apparatus provided in accordance with an embodiment of the application;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

The following describes a CAN signal detection method, apparatus, electronic device, storage medium, and program product according to embodiments of the present application with reference to the accompanying drawings. Aiming at the problems mentioned in the background art, the application provides a CAN signal detection method, in the method, signal parameters of a target CAN signal required by a target vehicle type are screened out from a CAN signal matrix, the problems of signal omission, signal checking errors and the like are avoided, the corresponding test mode is determined according to the selected test mode to detect the target CAN signal, and the checking result is output, so that the time of checking personnel CAN be greatly saved, new script writing by development testers is not needed, and the method is suitable for CAN signal detection of any vehicle type. Therefore, the problems of low efficiency, high error rate, long time and the like existing in the related technology are solved by manually writing or adjusting test script verification signals.

Specifically, fig. 1 is a schematic flow chart of a CAN signal detection method according to an embodiment of the present application.

As shown in fig. 1, the CAN signal detection method includes the steps of:

In step S101, a database connection between the CAN signal matrix and the target vehicle model is acquired.

The CAN signal matrix is a form of a table or database for describing the signal transmission rules in the CAN bus system. According to the embodiment of the application, the database connection between the CAN signal matrix and the target vehicle type is established, so that the documents of the related data of the target vehicle type, including DBC files and other technical documents, are obtained.

In step S102, signal parameters of a target CAN signal of a target vehicle model are screened from a CAN signal matrix according to the database connection, and a target detection mode of the target CAN signal input by the visual interface is identified.

It CAN be understood that the signal parameters of the target CAN signal required by the target vehicle type CAN be screened from the CAN signal matrix according to the DBC file, including at least one of the signal ID, the signal name and the signal value.

In the embodiment of the application, the target detection modes comprise a manual mode and an automatic mode, the detection modes of different detection modes are different, the manual mode is usually used for observing signal changes in real time, and the automatic mode is suitable for batch test under the preset condition, so that the test efficiency can be improved. In the actual execution process, the embodiment of the application CAN determine the target detection mode of the target CAN signal according to the selection of the user on the visual interface, wherein the window user of the visual interface CAN be created through capl or CAN be created through other modes without specific limitation.

In step S103, the target CAN signal is detected according to the signal parameter and the target detection mode of the target CAN signal, and the target CAN signal acceptance result of the target vehicle model is determined according to the detection result of the target CAN signal.

It CAN be understood that if the user selects the target mode to be the manual mode on the visual interface, the embodiment of the application detects the target CAN signal according to the signal parameter and manually detects the target CAN signal, and if the user selects the target mode to be the automatic mode on the visual interface, the embodiment of the application detects the target CAN signal according to the signal parameter and automatically detects the target CAN signal.

Specifically, the manual detection of the target CAN signal according to the signal parameters comprises the steps of inputting a signal ID into a visual interface and detecting the target CAN signal according to the related content of the display signal ID of the visual interface.

As shown in FIG. 2, the embodiment of the application can observe the signal value under the signal ID in real time on the visual interface by manually inputting the signal ID on the visual interface when clicking to start the test. If the signal value is consistent with the expected value and no anomaly (e.g., signal disruption) occurs, the signal acceptance result is a pass. If the signal value deviates from the expected value, or an abnormal condition exists, the signal acceptance result is failure

In one embodiment of the application, the automatic detection of the target CAN signal according to the signal parameters comprises the steps of importing at least one of a signal ID, a signal name and a signal value into a target template, setting a target detection duration, giving the target detection duration to a local variable of an automatic detection script, reading the target template through the automatic detection script, reading the signal value through the automatic detection script in each preset period, giving the local variable of the automatic detection script, and determining the detection result of the target CAN signal according to the local variable in each preset period until the current detection duration reaches the target detection duration. The target detection duration user can set according to actual conditions, for example, 30 minutes, and no specific risk is needed.

The target template may be an excel template. Before automatic detection starts, as shown in fig. 2, the embodiment of the application introduces the screened signal into the excel template in advance, introduces the excel template into the project after the project starts to determine the signal value required by the verification of the automatic test script, and clicks an automatic detection button to start automatic detection after the detection time is input. And after the detection time expires, automatically screening out the selected signals for display, and giving out a verification result.

Specifically, when the automatic detection mode starts, a window prompts that automatic detection starts, meanwhile, detection time is given to a local variable in an automatic detection script, the automatic detection script reads excel, the read signal names are given to the local variable, and the local variable for detecting the state corresponding to each signal value is created. In each fixed period, the script reads the bus signal value in real time and gives the bus signal value to the local variable, automatically detects the script to carry out logic judgment on the local variable, if the local variable is the correct value in the excel template, the local variable for detecting the state is set to be 1, otherwise, the local variable is set to be 0. If the local variable for detecting the state is 1, the signal name and "P" are written into the last two columns of the original table, indicating that the acceptance passes. If the local variable for detecting the state is 0, the signal name and S are written into the last two columns of the original table, and the acceptance failure is indicated.

Further, after stopping automatic detection when the current detection duration reaches the target detection duration, the embodiment of the application CAN also generate an ending prompt of automatic detection of the target CAN signal, for example, when a window prompt indicates that the automatic detection is ended, the operation is continued, or the ending prompt is performed in a voice broadcasting mode.

According to the CAN signal detection method provided by the embodiment of the application, the signal parameters of the target CAN signal required by the target vehicle type are screened out from the CAN signal matrix, so that the problems of signal omission, signal checking errors and the like are avoided, the corresponding test mode is determined according to the selected test mode to detect the target CAN signal, and the checking result is output, so that the time of checking personnel CAN be greatly saved, new script writing by developing testers is not needed, and the method is suitable for CAN signal detection of any vehicle type. Therefore, the problems of low efficiency, high error rate, long time and the like existing in the related technology are solved by manually writing or adjusting test script verification signals.

Next, a CAN signal detecting apparatus according to an embodiment of the present application will be described with reference to the accompanying drawings.

Fig. 3 is a block diagram of a CAN signal detection apparatus according to an embodiment of the present application.

As shown in fig. 3, the CAN signal detection apparatus 10 includes an acquisition module 100, a screening module 200, and a detection module 300.

The system comprises an acquisition module 100, a screening module 200 and a detection module 300, wherein the acquisition module 100 is used for acquiring a CAN signal matrix and a database connection of a target vehicle type, the screening module 200 is used for screening signal parameters of a target CAN signal of the target vehicle type from the CAN signal matrix according to the database connection and identifying a target detection mode of the target CAN signal input by a visual interface, the detection module 300 is used for detecting the target CAN signal according to the signal parameters of the target CAN signal and the target detection mode, and a target CAN signal acceptance result of the target vehicle type is determined according to the detection result of the target CAN signal.

In one embodiment of the present application, the target detection mode includes a manual mode and an automatic mode, and the detection module 300 is further configured to detect the target CAN signal according to the signal parameter when the target mode is the manual mode, and detect the target CAN signal according to the signal parameter when the target mode is the automatic mode.

In one embodiment of the application, the signal parameter of the target CAN signal includes at least one of a signal ID, a signal name, and a signal value.

In one embodiment of the present application, the detection module 300 is further configured to input a signal ID in the visual interface, and detect the target CAN signal according to the related content of the visual interface display signal ID.

In one embodiment of the present application, the detection module 300 is further configured to import at least one of a signal ID, a signal name, and a signal value into the target template, set a target detection duration, assign the target detection duration to a local variable of the auto-detection script, read the target template by the auto-detection script, and assign the signal value to the local variable of the auto-detection script by the auto-detection script in each preset period, and determine a detection result of the target CAN signal according to the local variable in each preset period until the current detection duration reaches the target detection duration.

In one embodiment of the present application, the CAN signal detection apparatus 10 further comprises a generation module. The generating module is used for generating an ending prompt of automatic detection of the target CAN signal after stopping automatic detection when the current detection duration reaches the target detection duration.

It should be noted that the foregoing explanation of the embodiments of the CAN signal detection method is also applicable to the CAN signal detection device of this embodiment, and will not be repeated herein.

According to the CAN signal detection device provided by the embodiment of the application, the signal parameters of the target CAN signal required by the target vehicle type are screened out from the CAN signal matrix, so that the problems of signal omission, signal checking errors and the like are avoided, the corresponding test mode is determined according to the selected test mode to detect the target CAN signal, and the checking result is output, so that the time of checking personnel CAN be greatly saved, new script writing by developing testers is not needed, and the device is suitable for CAN signal detection of any vehicle type. Therefore, the problems of low efficiency, high error rate, long time and the like existing in the related technology are solved by manually writing or adjusting test script verification signals.

Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device may include:

memory 401, processor 402, and a computer program stored on memory 401 and executable on processor 402.

The processor 402 implements the CAN signal detection method provided in the above embodiment when executing a program.

Further, the electronic device further includes:

A communication interface 403 for communication between the memory 401 and the processor 402.

A memory 401 for storing a computer program executable on the processor 402.

Memory 401 may include high-speed RAM (Random Access Memory ) memory, and may also include non-volatile memory, such as at least one disk memory.

If the memory 401, the processor 402, and the communication interface 403 are implemented independently, the communication interface 403, the memory 401, and the processor 402 may be connected to each other by a bus and perform communication with each other. The bus may be an ISA (Industry Standard Architecture ) bus, a PCI (PERIPHERAL COMPONENT, external device interconnect) bus, or EISA (Extended Industry Standard Architecture ) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 4, but not only one bus or one type of bus.

Alternatively, in a specific implementation, if the memory 401, the processor 402, and the communication interface 403 are integrated on a chip, the memory 401, the processor 402, and the communication interface 403 may perform communication with each other through internal interfaces.

The processor 402 may be a CPU (Central Processing Unit ) or an ASIC (Application SPECIFIC INTEGRATED Circuit, application specific integrated Circuit) or one or more integrated circuits configured to implement embodiments of the present application.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the CAN signal detection method as above.

The embodiment of the application also provides a computer program product, which comprises a computer program or instructions, wherein the computer program or instructions are used for realizing the CAN signal detection method.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware as in another embodiment, it may be implemented in any one or combination of techniques known in the art, discrete logic circuits with logic gates for performing logic functions on data signals, application specific integrated circuits with appropriate combinational logic gates, programmable gate arrays, field programmable gate arrays, and the like.

Those of ordinary skill in the art will appreciate that all or part of the steps carried by the method to implement the above-described embodiments may be implemented by a program to instruct related hardware, and the above-described program may be stored in a computer readable storage medium, where the program when executed includes one or a combination of the steps of the method embodiments.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A CAN signal detection method, characterized in that it comprises the following steps: Get the CAN signal matrix and the database connection of the target vehicle model; Filtering signal parameters of the target CAN signal of the target vehicle model from the CAN signal matrix according to the database connection, and identifying a target detection mode of the target CAN signal inputted by the visualization interface; The target CAN signal is detected according to the signal parameters of the target CAN signal and the target detection mode, and the target CAN signal acceptance result of the target vehicle model is determined according to the detection result of the target CAN signal. 2. The CAN signal detection method according to claim 1, characterized in that the target detection mode includes a manual mode and an automatic mode, and the detecting the target CAN signal according to the signal parameters of the target CAN signal and the target detection mode comprises: If the target mode is a manual mode, manually detecting the target CAN signal according to the signal parameters; If the target mode is the automatic mode, the target CAN signal is automatically detected according to the signal parameters. 3 . The CAN signal detection method according to claim 2 , wherein the signal parameters of the target CAN signal include at least one of a signal ID, a signal name and a signal value. 4. The CAN signal detection method according to claim 3, characterized in that the manual detection of the target CAN signal according to the signal parameter comprises: Input the signal ID in the visual interface; The target CAN signal is detected according to the relevant content of the signal ID displayed on the visualization interface. 5. The CAN signal detection method according to claim 3, characterized in that the automatic detection of the target CAN signal according to the signal parameter comprises: importing at least one of a signal ID, a signal name, and a signal value into a target template; Set the target detection duration, and assign the target detection duration to a local variable of the automatic detection script; The target template is read by the automatic detection script, and a signal value is read by the automatic detection script and assigned to a local variable of the automatic detection script in each preset cycle; In each preset cycle, the detection result of the target CAN signal is determined according to the local variable, and automatic detection is stopped when the current detection duration reaches the target detection duration. 6. The CAN signal detection method according to claim 5, characterized in that after stopping the automatic detection until the current detection duration reaches the target detection duration, it also includes: Generate an end prompt of the automatic detection of the target CAN signal. 7. A CAN signal detection device, comprising: Acquisition module, used to obtain the CAN signal matrix and the database connection of the target vehicle model; A screening module, for screening signal parameters of a target CAN signal of the target vehicle model from the CAN signal matrix according to the database connection, and identifying a target detection mode of the target CAN signal inputted by a visual interface; The detection module is used to detect the target CAN signal according to the signal parameters of the target CAN signal and the target detection mode, and determine the target CAN signal acceptance result of the target vehicle model according to the detection result of the target CAN signal. 8. An electronic device, characterized in that it comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the CAN signal detection method according to any one of claims 1 to 6. 9. A computer-readable storage medium having a computer program or instruction stored thereon, wherein when the computer program or instruction is executed, the CAN signal detection method according to any one of claims 1 to 6 is implemented. 10. A computer program product, comprising a computer program or an instruction, wherein when the computer program or the instruction is executed, the CAN signal detection method according to any one of claims 1 to 6 is implemented.