Data playback device and data analysis method

Abstract

The invention discloses a data playback device and a data analysis method, the data playback device comprises a data playback unit and a data processing unit, the data processing unit is configured to load vehicle test data in a target path into the data playback unit, and the data processing unit is configured to analyze the vehicle test data in the target path. And sending the vehicle test data to a data playback unit, so that the data playback unit plays back the vehicle test data, and in the process of playing back the vehicle test data by the data playback unit, calling at least one preset analysis case to analyze the vehicle test data to obtain an analysis report. According to the data playback device provided by the invention, through cooperative work of the data playback unit and the data processing unit, integrated processing of loading, playback and analysis of the vehicle test data is realized, so that the data processing efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of automatic test technology. Specifically, this application relates to a data playback device and a data analysis method. Background Art

[0002] Currently, during the research and development of new energy vehicles, on-road vehicle testing, especially winter and summer calibration tests, is a key link to ensure vehicle performance, stability, and safety. A large amount of test data is generated during vehicle testing. However, the current analysis of vehicle test data still relies on manual analysis. Therefore, when faced with a large amount of vehicle test data, the analysis efficiency is relatively low. Summary of the Invention

[0003] This application aims to at least partly solve one of the technical problems in the related art. For this purpose, the objective of this application is to propose a data playback device and a data analysis method, which through the collaborative work of a data playback unit and a data processing unit, can realize the integrated processing of loading, playback, and analysis of vehicle test data, thereby improving the efficiency of data processing.

[0004] In the first aspect, this application provides a data playback device.

[0005] In some embodiments, the data playback device includes: a data playback unit and a data processing unit, where

[0006] the data processing unit is configured to load the vehicle test data under a target path into the data playback unit, so that the data playback unit can playback the vehicle test data, and during the process of the data playback unit playing back the vehicle test data, call at least one preset analysis use case to analyze the vehicle test data to obtain an analysis report.

[0007] In some embodiments, the target path includes multiple folders, and each folder includes multiple vehicle test data. The data processing unit includes:

[0008] a folder switching module, configured to switch between multiple folders;

[0009] a file switching module, configured to switch between multiple vehicle test data in each folder, so as to sequentially load the multiple vehicle test data in each folder into the data playback unit;

[0010] The data analysis module is configured to, during the process of the data playback unit playing back each piece of vehicle test data, call at least one of the preset analysis use cases to analyze the corresponding vehicle test data to obtain an analysis result, and after all the vehicle test data playback is completed, generate the analysis report according to the analysis result of the vehicle test data and the preset report format.

[0011] In some embodiments, the data processing unit further includes: a data storage module, the data storage module is adapted to be connected to the vehicle bus, and the data storage module is configured to obtain the vehicle test data from the vehicle bus.

[0012] In some embodiments, at least one of the preset analysis use cases includes at least one of gear fault analysis, charging fault analysis, and current anomaly analysis.

[0013] The data playback device provided by the present application realizes the integrated processing of loading, playback, and analysis of vehicle test data through the collaborative work of the data playback unit and the data processing unit. Specifically, the data processing unit loads the vehicle test data in the target path into the data playback unit, so that the data playback unit can efficiently and accurately play back the vehicle test data. During the playback process, the data processing unit can call at least one preset analysis use case to analyze the vehicle test data, so as to complete the data analysis work while the data playback is completed, thereby improving the efficiency of data processing.

[0014] In a second aspect, the present application further provides a data analysis method, the data analysis method is applied to a data playback device, the data playback device includes a data playback unit, and the method includes:

[0015] Load the vehicle test data in the target path into the data playback unit so that the data playback unit can play back the vehicle test data;

[0016] During the process of the data playback unit playing back the vehicle test data, call at least one preset analysis use case to analyze the vehicle test data to obtain an analysis report.

[0017] In some embodiments, the target path includes multiple folders, each folder includes multiple pieces of vehicle test data, and loading the vehicle test data in the target path into the data playback unit includes:

[0018] Load the multiple pieces of vehicle test data in the first folder into the data playback unit in sequence;

[0019] When all the vehicle test data in the first folder has been replayed, multiple pieces of vehicle test data in the next folder are sequentially loaded into the data replay unit until all the vehicle test data has been replayed.

[0020] In some embodiments, during the process of the data replay unit replaying the vehicle test data, at least one preset analysis case is called to analyze the vehicle test data to obtain an analysis report, including:

[0021] During the process of the data replay unit replaying each piece of vehicle test data, at least one of the preset analysis cases is called to analyze the corresponding vehicle test data to obtain an analysis result;

[0022] After all the vehicle test data has been replayed, the analysis report is generated according to the analysis results of the vehicle test data and a preset report format.

[0023] In some embodiments, before loading the vehicle test data in the target path into the data replay unit, the method further includes:

[0024] When a data analysis start signal is received, control the data replay unit to stop running.

[0025] In a third aspect, the present application also provides a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the data analysis method as described in the above embodiments.

[0026] In a fourth aspect, the present application also provides an electronic device, which includes:

[0027] One or more processors;

[0028] A memory for storing one or more programs;

[0029] When the one or more programs are executed by the one or more processors, the one or more processors implement the data analysis method as described in the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present application will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0031] Figure 1 is a schematic structural diagram of a data analysis device provided by an embodiment of the present application;

[0032] Figure 2 is a schematic structural diagram of a data analysis device provided by an embodiment of the present application;

[0033] Figure 3 It is a schematic flowchart of a data analysis method provided by an embodiment of the present application;

[0034] Figure 4 It is a schematic flowchart of a specific embodiment of a data analysis method provided by the present application;

[0035] Figure 5 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0036] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, but should not be construed as limiting the present application.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0038] In the present application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0039] Currently, in the R & D process of new energy vehicles, on-vehicle tests, especially winter and summer calibration tests, are key links to ensure vehicle performance, stability, and safety. A large amount of test data will be generated during the vehicle test. However, the current analysis of vehicle test data still relies on manual analysis. This method not only has a large workload but also is difficult to ensure the objectivity and accuracy of the analysis results. In addition, the results of manual analysis cannot be output in a standardized report form, which will bring inconvenience to subsequent archiving records.

[0040] In addition, the software and hardware systems of new energy vehicles are highly complex, and the performance optimization of new energy vehicles relies on a large amount of accurate data support. However, in the face of large-scale vehicle test data, traditional manual data analysis methods cannot meet the requirements of high precision and high efficiency.

[0041] To solve at least one of the above problems, the present application provides a data playback device and a data analysis method.

[0042] Figure 1 As shown in the structural schematic diagram of a data analysis device provided by an embodiment of the present application, Figure 1 as shown, the data playback device 1 includes a data playback unit 2 and a data processing unit 3. Among them, the data processing unit 3 is configured to load the vehicle test data in the target path into the data playback unit 2, so that the data playback unit 2 can playback the vehicle test data, and during the process of the data playback unit 2 playing back the vehicle test data, at least one preset analysis use case is called to analyze the vehicle test data to obtain an analysis report.

[0043] The data playback device 1 provided by the present application realizes the integrated processing of loading, playback and analysis of vehicle test data through the collaborative work of the data playback unit 2 and the data processing unit 3. Specifically, the data processing unit 3 loads the vehicle test data in the target path into the data playback unit 2, so that the data playback unit 2 can efficiently and accurately playback the vehicle test data. During the playback process, the data processing unit 3 can call at least one preset analysis use case to analyze the vehicle test data, so as to complete the analysis work of the vehicle test data while the data playback is completed, thereby improving the efficiency and convenience of vehicle test data processing.

[0044] Since the traditional vehicle test data processing method usually needs to complete data playback first and then perform data analysis, these two processes are often carried out separately, resulting in low efficiency of vehicle test data processing. Compared with the traditional vehicle test data processing method, the embodiment of the present application can avoid the repeated loading and transmission of vehicle test data between different processing links by combining vehicle test data playback and analysis, so as to reduce the time and resource consumption of vehicle test data processing, thereby significantly improving the efficiency of vehicle test data processing.

[0045] In addition, the data playback device 1 provided in this application calls a preset analysis use case to analyze the vehicle test data during the playback of the vehicle test data, which can make the analysis process closer to the actual vehicle test data playback situation. The preset analysis use case can be customized and optimized according to the characteristics of the vehicle test data and the analysis requirements, so as to analyze the vehicle test data in real time and accurately during the playback of the vehicle test data, avoiding the problem that the analysis result does not match the actual situation caused by the separation of the vehicle test data playback and analysis, thereby enhancing the accuracy of the vehicle test data analysis.

[0046] Furthermore, the data playback device 1 provided in this application can quickly generate an analysis report by efficiently and accurately playing back and analyzing the vehicle test data, providing strong data support for the research and development, testing, and optimization of the vehicle. The analysis report can clearly reflect various performance indicators and problems of the vehicle during the test, helping the R & D personnel to timely discover potential problems of the vehicle and make targeted improvements, thereby improving the overall performance and quality of the vehicle and enhancing the utilization value of the data in the vehicle R & D and test processes.

[0047] In summary, since the data playback device 1 provided in this application can automatically complete the processes of loading, playing back, and analyzing the vehicle test data, reducing the manual intervention links and reducing the errors and uncertainties caused by manual operations. At the same time, the integrated data processing method can shorten the processing cycle of the vehicle test data, thereby saving time and labor costs and improving the overall efficiency and benefits of vehicle R & D and testing.

[0048] In some embodiments, the target path includes multiple folders, and each folder includes multiple pieces of vehicle test data. As Figure 2 shown, the data processing unit 3 includes a folder switching module 4, a file switching module 5, and a data analysis module 6. Among them, the folder switching module 4 is configured to switch between multiple folders. The file switching module 5 is configured to switch between multiple pieces of vehicle test data in each folder to sequentially load the multiple pieces of vehicle test data in each folder into the data playback unit 2. The data analysis module 6 is configured to call at least one preset analysis use case to analyze the corresponding vehicle test data during the playback of each piece of vehicle test data by the data playback unit 2 to obtain an analysis result, and generate an analysis report according to the analysis result of the vehicle test data and the preset report format after all the vehicle test data playback is completed.

[0049] Specifically, multiple pieces of vehicle data are stored in multiple folders. The data playback device provided in this application can automatically perform hierarchical switching and loading of multiple pieces of vehicle test data in multiple folders through the collaborative work of the folder switching module 4 and the file switching module 5.

[0050] Specifically, the folder switching module 4 switches the first folder, and the file switching module 5 loads the first vehicle test data in the first folder into the data playback unit 2. After the playback of the first vehicle test data in the first folder is completed, the file switching module 5 loads the second vehicle test data in the first folder into the data playback unit 2, and so on, until all the vehicle test data in the first file is played back. Then, the folder switching module 4 switches to the second folder, and the file switching module 5 loads the first vehicle test data in the second folder into the data playback unit 2, and so on, until all the vehicle test data in all folders is played back.

[0051] Therefore, this multi-level switching mechanism enables the data playback device to efficiently traverse and process a large amount of vehicle test data without manual intervention, greatly improving the efficiency and automation of data loading.

[0052] Furthermore, the data analysis module 6 can, during the playback of each vehicle test data by the data playback unit, call a preset analysis case in real time to analyze the vehicle test data. This real-time analysis method can ensure that the analysis results are synchronized with the playback of the vehicle test data, avoiding analysis errors caused by delays or inconsistencies in the vehicle test data, thereby improving the accuracy of vehicle test data analysis.

[0053] Even further, the data playback device provided in this application can not only analyze a single vehicle test data, but also generate a comprehensive analysis report based on the analysis results of each vehicle test data after all the vehicle test data is played back. This method of batch processing and comprehensive analysis can comprehensively reflect the overall situation of vehicle testing, providing a more comprehensive and accurate basis for subsequent vehicle optimization and improvement.

[0054] In addition, the data analysis module 6 can analyze the vehicle test data according to preset analysis cases, and these analysis cases can be customized and optimized according to different test requirements and data characteristics, so that the data playback device can intelligently process different types and complexities of vehicle test data. Further, when there are multiple preset analysis cases, the data analysis module 6 will call each preset analysis case in turn to analyze each vehicle test data, thereby obtaining more accurate analysis results.

[0055] Of course, the data playback device provided in this application can also generate an analysis report according to a preset report format after all the vehicle test data is played back. R & D personnel can set the preset report format according to the actual situation. This standardized report generation method can ensure that the format of the analysis report is unified and the content is complete, thus facilitating R & D personnel to quickly understand and use the analysis results, providing strong support for vehicle R & D and testing.

[0056] In some embodiments, the data processing unit 3 further includes a data storage module (not shown). The data storage module is adapted to be connected to the vehicle bus, and is configured to obtain vehicle test data from the vehicle bus.

[0057] In this way, various state information and sensor data during the vehicle operation can be collected in real time, thereby avoiding delays and losses during the transmission of vehicle test data, ensuring the integrity and accuracy of the vehicle test data, and providing a high-quality data basis for subsequent playback and analysis of vehicle test data.

[0058] In addition, this application directly obtains vehicle test data from the vehicle bus, and the data storage module can record the vehicle test data with a high-precision timestamp. When playing back the vehicle test data, this high-precision data recording can ensure the synchronization and accuracy of the vehicle test data playback, thereby improving the precision and stability of the vehicle test data playback.

[0059] In an alternative embodiment, the data storage module includes multiple folders, and the data storage module is further configured to store multiple pieces of vehicle data into multiple folders. Therefore, the data playback device can flexibly handle data storage methods of different scales and organizational forms.

[0060] It should be noted that the vehicle bus data acquisition supports multiple bus protocols, such as CAN (Controller Area Network), LIN (Local Interconnect Network), Ethernet, etc., and can flexibly adapt to different types of vehicles and test scenarios. This flexibility enables the data playback device to be widely applied to different vehicle test tasks. For example, test tasks such as gear fault analysis, charging fault analysis, and current anomaly analysis.

[0061] Based on the above embodiments, at least one preset analysis use case provided by this application includes at least one of gear fault analysis, charging fault analysis, and current anomaly analysis.

[0062] Further, the data analysis module 6 also stores an analysis start condition, an analysis end condition, and an analysis evaluation criterion. In actual applications, when the vehicle is being tested, especially when the vehicle is in a driving state, the vehicle cannot immediately analyze the vehicle test data. Instead, the vehicle test data needs to be stored first. Then, when the data analysis module 6 determines that the current state meets the analysis start condition, it controls the folder switching module 4 and the file switching module 5 to start working, so as to import each piece of vehicle test data into the data playback unit 2. Under normal circumstances, after all the vehicle test data has been played back, the data analysis is also completed. However, if the data analysis module 6 determines that the current state meets the analysis end condition, the data analysis module 6 will also stop the data analysis work.

[0063] In an alternative embodiment, the analysis start condition may be receiving an analysis start signal. When the data analysis module 6 receives the analysis start signal sent by the vehicle through the vehicle bus, the data analysis module 6 controls the folder switching module 4 and the file switching module 5 to start working, so as to import each piece of vehicle test data into the data playback unit 2 and start data analysis; the analysis end condition may be receiving an analysis stop signal, that is, when the data analysis module 6 receives the analysis stop signal, it stops the data analysis work.

[0064] The analysis evaluation criterion is set according to each preset analysis use case. Each preset analysis use case is the content to be analyzed, and the analysis evaluation criterion is used to determine whether a failure has occurred. For example, assuming that the preset analysis use case is whether there is a gear failure, the data analysis module 6 can obtain analysis data according to the preset analysis use case, and then determine whether there is a gear failure according to the analysis data and the analysis evaluation criterion.

[0065] Through the preset analysis use cases, the present application can specifically analyze specific problems (such as gear failure, charging failure, and current abnormality) in the vehicle test data. This targeted analysis method can quickly locate problems and avoid misjudgment or missed judgment caused by generalization in traditional analysis methods.

[0066] Moreover, for different types of failures, different analysis strategies and algorithms can be adopted for the preset analysis use cases. For example, gear failure analysis can focus on the data changes in the vehicle transmission system, charging failure analysis can focus on the data of the battery management system (BMS), and current abnormality analysis can detect abnormal fluctuations in the circuit system. This refined diagnosis method can more accurately identify the type and cause of the failure.

[0067] Since vehicle test data contains a large amount of redundant information, the preset analysis cases can quickly screen out the data related to specific faults, reduce the processing time of invalid data, and thus significantly improve the efficiency of data analysis. In addition, the preset analysis cases can also make the analysis process of vehicle test data automated, without the need for manual screening and analysis of data. This automated process can not only save time but also reduce errors caused by human factors.

[0068] The various preset analysis cases provided by this application (such as gear faults, charging faults, and current anomalies) can comprehensively cover the key problems that will occur during the vehicle test process. This comprehensive coverage method enables vehicle test data to more fully reflect the actual operating state of the vehicle, providing more valuable references for the research and development and optimization of the vehicle.

[0069] Furthermore, the preset analysis cases can generate detailed analysis reports based on the analysis results, clearly showing key information such as fault types, occurrence times, and influence ranges. Such detailed analysis reports can help R & D personnel quickly understand the problems, thereby accelerating the vehicle improvement and optimization process. To shorten the time cycle of vehicle testing and reduce the manpower and material resources invested during the testing process, thus reducing the R & D cost.

[0070] In addition, the preset analysis cases can also analyze vehicle test data to timely detect potential fault hazards, such as gear faults, charging faults, and current anomalies. This early warning mechanism can help the R & D team repair problems in a timely manner before the vehicle is put on the market, improving the reliability and safety of the vehicle.

[0071] Of course, the preset analysis cases can also be flexibly configured according to different vehicle test scenarios and requirements. For example, in the testing of electric vehicles, charging fault analysis and current anomaly analysis are particularly important. In the testing of traditional fuel vehicles, gear fault analysis is more targeted. This flexible configuration method enables the data playback device to adapt to a variety of vehicle test scenarios and has wide applicability.

[0072] Figure 3 It is a schematic flowchart of a data analysis method provided by an embodiment of this application. This data analysis method is applied to the data playback device 1, and the data playback device 1 includes a data playback unit 2, as Figure 3 shown, this data analysis method includes the following steps:

[0073] 101. Load the vehicle test data under the target path into the data playback unit so that the data playback unit can playback the vehicle test data.

[0074] 102. During the process of the data playback unit playing back the vehicle test data, call at least one preset analysis case to analyze the vehicle test data to obtain an analysis report.

[0075] As Figure 2 and Figure 3 shown, the data analysis method provided by this application realizes the integrated processing of vehicle test data loading, playback, and analysis through the collaborative work of the data playback unit 2 and the data processing unit 3.

[0076] Specifically, the data processing unit 3 loads the vehicle test data in the target path into the data playback unit 2, enabling the data playback unit 2 to efficiently and accurately playback the vehicle test data. During the playback process, the data processing unit 3 can call at least one preset analysis use case to analyze the vehicle test data, thus completing the data analysis work simultaneously when the data playback is completed, thereby improving the efficiency and convenience of data processing.

[0077] Since the traditional vehicle test data processing method usually needs to complete the vehicle test data playback first and then perform the vehicle test data analysis, these two processes are often carried out separately, which will lead to a relatively low efficiency of vehicle test data processing. However, the embodiment of this application combines the vehicle test data playback and analysis, which can avoid the repeated loading and transmission of vehicle test data between different processing links, reduce the time and resource consumption of vehicle test data processing, and thus significantly improve the efficiency of vehicle test data processing.

[0078] In addition, the data playback device 1 provided by this application calls the preset analysis use case to analyze the vehicle test data during the vehicle test data playback process, which can make the analysis process closer to the actual vehicle test data playback situation. The preset analysis use case can be customized and optimized according to the characteristics of the vehicle test data and the analysis requirements, so as to analyze the vehicle test data in real time and accurately during the vehicle test data playback process, and avoid the problem that the analysis result does not match the actual situation caused by the separation of vehicle test data playback and analysis, thereby enhancing the accuracy of vehicle test data analysis.

[0079] Furthermore, the data playback device 1 provided by this application can quickly generate an analysis report by efficiently and accurately playing back and analyzing the vehicle test data, providing strong data support for vehicle research and development, testing, and optimization. The analysis report can clearly reflect various performance indicators and problems of the vehicle during the test process, helping the R & D personnel to timely discover potential problems of the vehicle and make targeted improvements, thereby improving the overall performance and quality of the vehicle and enhancing the utilization value of vehicle test data in the vehicle R & D and test processes.

[0080] In addition, the data playback device 1 provided in this application can automatically complete the processes of loading, playback, and analysis of vehicle test data, so as to reduce the links of manual intervention and reduce errors and uncertainties caused by manual operations. At the same time, the integrated data processing method can shorten the data processing cycle, thereby saving time and labor costs and improving the overall efficiency and effectiveness of vehicle R & D and testing.

[0081] In some embodiments, the target path includes multiple folders, and each folder includes multiple pieces of vehicle test data. Loading the vehicle test data under the target path into the data playback unit 2 includes the following steps:

[0082] 103. Sequentially load multiple pieces of vehicle test data in the first folder into the data playback unit 2.

[0083] 104. When all the vehicle test data in the first folder has been played back, sequentially load multiple pieces of vehicle test data in the next folder into the data playback unit 2 until all the vehicle test data has been played back.

[0084] Specifically, multiple pieces of vehicle data are stored in multiple folders. The data analysis method provided in this application can automatically perform hierarchical switching and loading of multiple pieces of vehicle test data in multiple folders through the coordinated work of the folder switching mode and the file switching mode. This multi-level switching mechanism enables the data analysis method to efficiently traverse and process a large amount of vehicle test data without manual intervention, greatly improving the efficiency and automation degree of data loading.

[0085] This structure enables the data playback device 1 to flexibly handle data storage methods of different scales and organizational forms. At the same time, the data playback device 1 can also dynamically adjust the switching logic of folders and files according to actual needs, and has good scalability.

[0086] In some embodiments, during the process of the data playback unit 2 playing back the vehicle test data, at least one preset analysis use case is called to analyze the vehicle test data to obtain an analysis report, including the following steps:

[0087] 105. During the process of the data playback unit playing back each piece of vehicle test data, call at least one preset analysis use case to analyze the corresponding vehicle test data to obtain an analysis result.

[0088] 106. After all the vehicle test data has been played back, generate an analysis report according to the analysis results of the vehicle test data and the preset report format.

[0089] The data analysis method provided by this application can, during the playback of each vehicle test data by the data playback unit, call a preset analysis case in real time to analyze the data. This real-time analysis method can ensure that the analysis results are synchronized with the data playback and avoid analysis errors caused by data delay or inconsistency, thereby improving the accuracy of data analysis.

[0090] Furthermore, the data analysis method provided by this application can not only analyze a single vehicle test data, but also generate a comprehensive analysis report based on the analysis results of each data after all the data playback is completed. This method of batch processing and comprehensive analysis can comprehensively reflect the overall situation of vehicle testing and provide a more comprehensive and accurate basis for subsequent vehicle optimization and improvement.

[0091] In addition, the data analysis method can analyze vehicle test data according to preset analysis cases, and these analysis cases can be customized and optimized according to different test requirements and data characteristics, enabling the data analysis method to intelligently process different types and complexities of vehicle test data.

[0092] Moreover, the data analysis method provided by this application can generate an analysis report according to a preset report format after all vehicle test data playback is completed. This standardized report generation method can ensure that the format of the analysis report is unified and the content is complete, facilitating R & D personnel to quickly understand and use the analysis results and providing strong support for vehicle R & D and testing.

[0093] In some embodiments, before loading the vehicle test data in the target path into the data playback unit 2, the method further includes: controlling the data playback unit 2 to stop running when receiving a data analysis start signal.

[0094] The data playback device 1 provided by this application needs to start loading vehicle test data and start analysis when receiving a data analysis start signal. However, before loading new vehicle test data, it is necessary to first stop the operation of the data playback unit 2, which can not only prevent the data playback unit 2 from continuing to process old data during the loading process, thereby ensuring the integrity and undisturbed state of the newly loaded vehicle test data; but also avoid simultaneous vehicle test data playback during the loading process to reduce system resource occupation and conflicts, thereby improving the speed and efficiency of vehicle test data loading.

[0095] This mechanism of the data playback device 1 can not only prevent data conflicts or overwrites during the loading process of the data playback unit, ensuring that the loaded vehicle test data is exactly the same as the vehicle test data under the target path, and improving the accuracy and reliability of the vehicle test data; but also ensure that the data processing unit 3 focuses on data reading and transmission when loading data, avoiding performance degradation or data processing errors caused by simultaneous vehicle test data playback, thereby improving the stability of the entire device.

[0096] Figure 4 It is a schematic flowchart of a specific embodiment of a data analysis method provided by this application. As Figure 4 shown, in this specific embodiment, the data analysis method includes the following steps:

[0097] S201, Start the data playback device.

[0098] S202, Stop the operation of the data playback unit.

[0099] S203, Switch to the folder where the vehicle test data is located.

[0100] S204, Load the vehicle test data in the current folder into the data playback unit.

[0101] S205, Run the data playback unit to perform vehicle test data playback. During the playback process, call the preset analysis use case to perform vehicle test data analysis.

[0102] S206, After determining that the playback of this vehicle test data is completed, determine whether there is any other vehicle test data in the current folder. If there is, execute step S210, import the next vehicle test data, and continue to perform the playback and analysis of the vehicle test data according to the preset analysis use case; if not, execute step S207, switch to the next folder to import vehicle test data and continue to perform the playback and analysis of the vehicle test data.

[0103] S207, Determine whether the current folder is the last folder. If so, execute step S208; if not, execute step S209.

[0104] S208, After all vehicle test data has been played back and analyzed, generate an analysis report.

[0105] S209, The folder switching sub-module switches to the next folder.

[0106] S210, The file switching sub-module imports the next vehicle test data.

[0107] The present application also provides a computer-readable medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the data analysis method in the above embodiments.

[0108] Figure 5 FIG. is a schematic structural diagram of an electronic device provided by an embodiment of the present application, as Figure 5 shown. The electronic device 100 includes: one or more processors 120 and a memory 110. Among them, the memory 110 is used to store one or more programs.

[0109] When one or more programs are executed by one or more processors 120, the one or more processors 120 implement the data analysis method in the above embodiments.

[0110] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application.

[0111] In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0112] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A data playback device, characterized in that, Including: A data playback unit and a data processing unit, wherein the data processing unit is configured to load vehicle test data under a target path into the data playback unit, so that the data playback unit plays back the vehicle test data, and during the process of the data playback unit playing back the vehicle test data, at least one preset analysis use case is called to analyze the vehicle test data to obtain an analysis report.

2. The data playback device according to claim 1, wherein The target path includes a plurality of folders, and each folder includes multiple pieces of vehicle test data. The data processing unit includes: A folder switching module configured to switch between the plurality of folders; A file switching module configured to switch between multiple pieces of vehicle test data in each folder, so as to sequentially load the multiple pieces of vehicle test data in each folder into the data playback unit; A data analysis module configured to, during the process of the data playback unit playing back each piece of vehicle test data, call at least one of the preset analysis use cases to analyze the corresponding vehicle test data to obtain an analysis result, and after all the vehicle test data playback is completed, generate the analysis report according to the analysis results of the vehicle test data and a preset report format.

3. The data playback device according to claim 2, characterized in that The data processing unit further includes: a data storage module, the data storage module is adapted to be connected to a vehicle bus, and the data storage module is configured to obtain the vehicle test data from the vehicle bus.

4. The data playback device according to any one of claims 1-3, characterized in that At least one of the preset analysis use cases includes at least one of gear failure analysis, charging failure analysis, and current anomaly analysis.

5. A data analysis method, characterized in that, Applied to a data playback device, the data playback device includes a data playback unit, and the method includes: Loading vehicle test data under a target path into the data playback unit, so that the data playback unit plays back the vehicle test data; During the process of the data playback unit playing back the vehicle test data, calling at least one preset analysis use case to analyze the vehicle test data to obtain an analysis report.

6. The method according to claim 5, characterized in that, The target path includes a plurality of folders, and each folder includes multiple pieces of vehicle test data. Loading the vehicle test data under the target path into the data playback unit includes: Sequentially loading multiple pieces of vehicle test data in the first folder into the data playback unit; When all the vehicle test data in the first folder is played back, sequentially loading multiple pieces of vehicle test data in the next folder into the data playback unit until all the vehicle test data is played back.

7. The method according to claim 6, wherein During the process of the data playback unit playing back the vehicle test data, calling at least one preset analysis use case to analyze the vehicle test data to obtain an analysis report, including: During the process of the data playback unit playing back each piece of vehicle test data, calling at least one of the preset analysis use cases to analyze the corresponding vehicle test data to obtain an analysis result; After all the vehicle test data is played back, generating the analysis report according to the analysis results of the vehicle test data and a preset report format.

8. The method according to any one of claims 5-7, characterized in that, Before loading the vehicle test data in the target path into the data playback unit, the method further includes: When receiving a data analysis start signal, controlling the data playback unit to stop running.

9. A computer-readable medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the data analysis method according to any one of claims 5 to 8.

10. An electronic device, characterized in that, Including: One or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the data analysis method according to any one of claims 5 to 8.

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