CN114415898B - Method and system for reinjecting real vehicle data into Simulink model - Google Patents
Method and system for reinjecting real vehicle data into Simulink model Download PDFInfo
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- CN114415898B CN114415898B CN202210044959.XA CN202210044959A CN114415898B CN 114415898 B CN114415898 B CN 114415898B CN 202210044959 A CN202210044959 A CN 202210044959A CN 114415898 B CN114415898 B CN 114415898B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/0482—Interaction with lists of selectable items, e.g. menus
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/252—Integrating or interfacing systems involving database management systems between a Database Management System and a front-end application
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/258—Data format conversion from or to a database
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
Abstract
The invention discloses a method and a system for reinjection of real vehicle data into a Simulink model, wherein the real vehicle data reinjection comprises the following steps of 1) reinjection data extraction; the reinjection data extraction refers to extracting effective data from problem data on a real vehicle, and converting the effective data into a data format timeses which can be directly injected by a Simlink model; 2) Reinjection model construction; the reinjection model structure is to replicate a reinjection Simulink model matched with a problem model on a real vehicle on a computer to obtain a replication model, and reform an interface of the replication model so that reinjection data can be reinjected into the replication model through the reformed interface; 3) And operating the extracted reinjection data on a reinjection model to realize real vehicle data reinjection. The invention can automatically complete the data reinjection work, shortens the problem investigation period and improves the working efficiency.
Description
Technical Field
The invention relates to an improvement of a data reinjection technology, in particular to a method and a system for reinjection of real vehicle data into a Simulink model, and belongs to the technical field of vehicles.
Background
With the increasing development of national economy, the demands of people on automobiles are gradually changed from hardware experience brought by hardware to soft experience brought by software, so that the explosive development situation of vehicle-mounted software is met. With the increase of the complexity of software functions, various functional fields introduce complex and numerous algorithms and strategies, such as automatic driving, intelligent vehicle control, intelligent chassis and the like.
In the development stage of vehicles, a large number of real vehicle road tests exist, a large number of test problems exist, and even functional developers cannot directly locate problem reasons according to problem data when the complexity of software is high. The general way is to reinject the data into the software simulation and locate the problem point by means of software debugging.
The Simulink tool of Matlab can be used for developing algorithms and strategies conveniently. In industry, the current host factories mostly use the tool for developing application software.
However, due to the intrinsic difference between the application scenarios of the real vehicle data collection tool chain and the development tool chain, the data cannot be directly reinjected into the Simulink model, and usually more conversion steps are required, and most of these processes are currently completed by people, and related people need to have certain professional technical requirements. Meanwhile, as the volume of data increases, the process of data reinjection becomes more complicated and tedious. Based on the above, the problem needs to be solved, repeated labor of developers is avoided, the problem checking period is shortened, and further the development of the whole vehicle is beneficial.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for reinjection of real vehicle data into a Simulink model.
The technical scheme of the invention is realized as follows:
a method for reinjecting real vehicle data into a Simulink model is characterized by comprising the following steps of: the steps are as follows,
1) Reinjection data extraction; the reinjection data extraction refers to extracting effective data from problem data on a real vehicle, and converting the effective data into a data format timeses which can be directly injected by a Simlink model;
2) Reinjection model construction; the reinjection model structure is to replicate a reinjection Simulink model matched with a problem model on a real vehicle on a computer to obtain a replication model, and reform an interface of the replication model so that reinjection data can be reinjected into the replication model through the reformed interface; the reconstructed copy model forms a reinjection model;
3) And operating the extracted reinjection data on a reinjection model, namely realizing the real vehicle data reinjection Simulink model.
Preferably, in the step 1), during the extraction of the reinjection data, firstly, determining a problem model on the real vehicle based on the real vehicle problem data, then finding a reinjection Simulink model corresponding to the problem model on the real vehicle on a computer, completely reading out interface names required by the reinjection Simulink model, then, de-matching the interface names into the problem data, extracting data with consistent names, and converting the data into a timeses format, thereby realizing the extraction of the reinjection data.
Wherein, the specific steps of reinjection data extraction in the step 1) are as follows,
1.1 Pressing a select data button on the computer operator interface;
1.2 Pop-up a file selection window on a computer display interface;
1.3 Selecting corresponding problem data on the computer operation interface;
1.4 Displaying the absolute path of the data on a computer display interface;
1.5 Then load problem data to matlab;
1.6 Pressing a select model button on the computer operator interface;
1.7 Pop-up a model selection window on a computer display interface;
1.8 Selecting a reinjection Simulink model corresponding to the problem model on a computer operation interface;
1.9 Displaying the absolute path of the reinjection Simulink model on a computer display interface;
1.10 Reading the interface name of the outermost layer of the reinjection Simulink model;
1.11 Finding out problem data matched with the interface name and converting the data format into a timeeries format;
1.12 Extract reinjection data.
The interface transformation of the replication model in the step 2) is specifically that all original interfaces of the replication model are deleted firstly, then a specific reinjection interface From work space is added to the replication model, and the reinjection interface and the extracted reinjection data are directly associated, so that a reinjection model is formed.
The utility model provides an automatic real reality car data reinjection Simulink model's system which characterized in that: comprising
An interactive interface module; the interactive interface module is provided with an interactive interface, and the interactive interface comprises a plurality of plates for reinjection data loading, reinjection model loading, reinjection starting buttons, reinjection progress and information prompt;
reinjection data extraction module: the method is used for extracting effective data from problem data on a real vehicle, and converting the effective data into a data format timeses which can be directly injected by a Simlink model;
and (3) a reinjection model construction module: the method is used for copying the reinjection Simulink model matched with the problem model on the real vehicle on the computer to obtain a copy model, and modifying an interface of the copy model so that reinjection data can be reinjected into the copy model through the modified interface.
Setting a reinjection data loading button on the interactive interface, clicking the reinjection data loading button can directly enter a computer file system to select corresponding problem data, and displaying an absolute path of the problem data on the interactive interface after the selection is completed; this path will become the entry for the extraction of the reinjection data and the corresponding data will become the target data for the reinjection.
Setting a reinjection model loading button on the interactive interface, clicking the reinjection model loading button can directly access a computer file system to select a model to be reinjected, displaying an absolute path of the model on the interactive interface after the selection is completed, wherein the path is to be an extraction inlet of the reinjected model, and the corresponding model is to be a target model of reinjection.
And setting a reinjection starting button on the interactive interface, clicking the reinjection starting button, and starting a data reinjection function.
And a reinjection progress prompt bar is arranged on the interactive interface and used for prompting the reinjection progress.
And an information prompt box is arranged on the interactive interface, and abnormal conditions and execution results are displayed.
Compared with the prior art, the invention has the following beneficial effects:
based on the design of the invention, a user can directly operate and complete the whole data reinjection process on the interactive interface, the operation is simple, the technical threshold of data reinjection is reduced, all reinjection processes are packaged into a background to be automatically executed, both hands of a person are fully liberated, the problem positioning speed is increased, and the quick solution of the vehicle problem is promoted.
According to the invention, in the whole data reinjection process, a user can finish the function of real vehicle data reinjection Simulink only by simple button clicking and file selection, so that the burden of development engineers in actual work is greatly reduced.
Drawings
Fig. 1 is a diagram showing the sub-functions of the real vehicle data reinjection Simulink model system according to the present invention.
FIG. 2 is a schematic diagram of an interactive interface of the present invention.
FIG. 3 is a flow chart of the reinjection data extraction step of the present invention.
FIG. 4 is a flow chart of the reinjection model constructing step of the present invention.
Detailed Description
Specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
The specific software operation of the invention is based on Matlab platform and is written by m language.
The present invention will be described in further detail below with reference to the drawings.
As shown in FIG. 1, a system for automatically reinjecting real vehicle data into a Simulink model is composed of three sub-functional modules, namely an interactive interface module, a reinjection data extraction module and a reinjection model construction module.
An interactive interface module; the interactive interface module is provided with an interactive interface, and the interactive interface comprises a plurality of plates for reinjection data loading, reinjection model loading, reinjection starting buttons, reinjection progress and information prompt.
Reinjection data extraction module: the method is used for extracting effective data from problem data on a real vehicle and converting the effective data into a data format of timeliness which can be directly injected by a Simlink model.
And (3) a reinjection model construction module: the method is used for copying the reinjection Simulink model matched with the problem model on the real vehicle on the computer to obtain a copy model, and modifying an interface of the copy model so that reinjection data can be reinjected into the copy model through the modified interface. Firstly, deleting the original interface of the model, wherein the original interface does not support data reinjection; a specific reinjection interface From work space is then added to the model, and the reinjection interface is directly associated with the extracted reinjection data.
The detailed design of the interactive interface shown in fig. 1 is shown in fig. 2, and a schematic diagram of the interactive interface is shown in fig. 2. In this schematic diagram, the necessary interactive windows of the interactive interface are presented.
In the invention, the interactive interface shown in figure 2 is developed based on an App designer tool of Matlab.
The host computer display name 100 presents the name of the host computer.
The start button 101 is a start button for data reinjection, and is started by clicking after the reinjection data and the reinjection model are selected. Clicking the start reinjection button starts the data reinjection function.
The select data button 102 (i.e., the reinjection data load button) is the entry for the selected data, which upon pressing enters the file selection system, and the absolute path of the data is displayed in the text display window one 103 after the data ready for reinjection is selected. Clicking the data selection button 102 can directly enter a computer file system to select corresponding problem data, and displaying the absolute path of the problem data on an interactive interface after the selection is completed; this path will become the entry for the extraction of the reinjection data and the corresponding data will become the target data for the reinjection.
The select model button 105 (i.e., the reinjection model load button) is an entry for selecting a model, which upon pressing enters the file selection system, and the absolute path of the model is displayed in the text display window two 106 after the model ready for reinjection is selected. Clicking the select model button 105 can directly access the computer file system to select the model to be reinjected, and after the selection is completed, the absolute path of the model is displayed on the interactive interface, the path will be the extraction inlet of the reinjected model, and the corresponding model will be the target model of reinjecting.
The information prompt box 108 is used to prompt some additional information, such as exception information and execution results.
A method for reinjecting real vehicle data into a Simulink model comprises the following steps,
1) Reinjection data extraction; the reinjection data extraction refers to extracting effective data from problem data on a real vehicle, and converting the effective data into a data format timeses which can be directly injected by a Simlink model; in general, the data collected by the real vehicle is the data covering the whole system, the number of signals is often thousands or tens of thousands, and the data really needing to be reinjected for a specific problem is far less. And firstly, all interface names required by the reinjected Simulink model are read out, then the interface names are matched in the problem data, the data with consistent names are extracted, and the data are converted into a timeeries format.
2) Reinjection model construction; the reinjection model structure is to replicate a reinjection Simulink model matched with a problem model on a real vehicle on a computer to obtain a replication model, and reform an interface of the replication model so that reinjection data can be reinjected into the replication model through the reformed interface; the reconstructed copy model forms a reinjection model; specifically, all original interfaces of the replication model are deleted first, then a specific reinjection interface From work space is added to the replication model, and the reinjection interface is directly associated with the extracted reinjection data, so that a reinjection model is constructed.
3) And operating the extracted reinjection data on a reinjection model, namely realizing the real vehicle data reinjection Simulink model.
Preferably, in the step 1), during the extraction of the reinjection data, firstly, determining a problem model on the real vehicle based on the real vehicle problem data, then finding a reinjection Simulink model corresponding to the problem model on the real vehicle on a computer, completely reading out interface names required by the reinjection Simulink model, then, de-matching the interface names into the problem data, extracting data with consistent names, and converting the data into a timeses format, thereby realizing the extraction of the reinjection data.
Wherein, the specific steps of reinjection data extraction in the step 1) are as follows,
1.1 Pressing a select data button on the computer operator interface;
1.2 Pop-up a file selection window on a computer display interface;
1.3 Selecting corresponding problem data on the computer operation interface;
1.4 Displaying the absolute path of the data on a computer display interface;
1.5 Then load problem data to matlab;
1.6 Pressing a select model button on the computer operator interface;
1.7 Pop-up a model selection window on a computer display interface;
1.8 Selecting a reinjection Simulink model corresponding to the problem model on a computer operation interface;
1.9 Displaying the absolute path of the reinjection Simulink model on a computer display interface;
1.10 Reading the interface name of the outermost layer of the reinjection Simulink model;
1.11 Finding out problem data matched with the interface name and converting the data format into a timeeries format;
1.12 Extract reinjection data.
Step 1) reinjection data extraction detailed referring to the flow chart of the reinjection data extraction step in fig. 3, it can be seen from fig. 3 that the reinjection data extraction depends on the user to select the reinjection data and the reinjection model through the interactive interface. After the relative path of the data is obtained, the data is loaded to the matlab, the data is primarily arranged, the data format is identified, different data reading modes are selected according to the data format, and then effective data content is extracted, wherein the effective data content generally comprises the signal name, the signal value and the time information in the data. After the relative path of the model is obtained, firstly reading the interface name of the outermost layer of the model, then comparing the interface name with the primarily arranged data, completely extracting the data with the names capable of being matched, and converting the extracted data into a timeeries format in combination with time information. Finally, the completion of the extraction of the reinjection data is displayed in the stage completion display module 104.
As can also be seen from the flow chart of the reinjection data extraction step of fig. 3, the reinjection data extraction is started already after the data and model selection is completed, without waiting for the user to click the start button to trigger. The purpose of this design is to save the time of reinjection, in the actual process, larger data are often encountered, and the matlab will often take a certain time to load the data with larger volume, so the invention will pre-process the data, and reduce the time of reinjection.
The reinjection model structure of step 2) is detailed in the flow chart of the reinjection model structure step shown in fig. 4, and it can be seen from fig. 4 that the reinjection model structure is performed only after the reinjection data extraction is completed and the user clicks the start button 101. According to the absolute path of the model, the selected reinjection model is automatically copied under the absolute path of the model, then the copy model is opened, all interfaces outside the model are deleted, a test interface module from work space is added for each interface, and then corresponding reinjection signals on the test interface association, namely, data in the timeeries format extracted from reinjection data, are associated according to the interface names. If no corresponding reinjection signal exists in the association process, no two conditions exist, one is that the interface of the model and the interface names of signals in the data are inconsistent, and the other is that the corresponding signals are not recorded in the data. At this time, the signal name that cannot be reinjected is prompted in the information prompt box 108, and the reinjection interface that fails to be associated is replaced by the Const module and filled with a default value. Finally, the completion of the reinjection model construction is displayed in a stage completion display module 104.
After the steps are finished, automatically switching the matlab working path to the absolute path of the reinjection model, and enabling a user to operate the model by clicking an operation button of the Simulink, and performing simulation and test according to the requirements, so that the problem is found out.
Reviewing the whole implementation process, a user can complete the function of real vehicle data reinjection Simulink by simply clicking a button and selecting a file. The load of development engineers is practically reduced in actual work.
Finally, it should be noted that the above examples of the present invention are merely illustrative of the present invention and are not limiting of the embodiments of the present invention. While the invention has been described in detail with reference to the preferred embodiments, it will be apparent to one skilled in the art that various other changes and modifications can be made therein. Not all embodiments are exhaustive. Obvious changes and modifications which are extended by the technical proposal of the invention are still within the protection scope of the invention.
Claims (8)
1. A method for reinjecting real vehicle data into a Simulink model is characterized by comprising the following steps of: the steps are as follows,
1) Reinjection data extraction; the reinjection data extraction refers to extracting effective data from problem data on a real vehicle, and converting the effective data into a data format timeses which can be directly injected by a Simlink model;
2) Reinjection model construction; the reinjection model structure is to replicate a reinjection Simulink model matched with a problem model on a real vehicle on a computer to obtain a replication model, and reform an interface of the replication model so that reinjection data is reinjected into the replication model through the reformed interface; the reconstructed copy model forms a reinjection model;
3) Operating the extracted reinjection data on a reinjection model, namely realizing a real vehicle data reinjection Simulink model;
the specific steps of reinjection data extraction in the step 1) are as follows,
1.1 Pressing a select data button on the computer operator interface;
1.2 Pop-up a file selection window on a computer display interface;
1.3 Selecting corresponding problem data on the computer operation interface;
1.4 Displaying the absolute path of the data on a computer display interface;
1.5 Then load problem data to matlab;
1.6 Pressing a select model button on the computer operator interface;
1.7 Pop-up a model selection window on a computer display interface;
1.8 Selecting a reinjection Simulink model corresponding to the problem model on a computer operation interface;
1.9 Displaying the absolute path of the reinjection Simulink model on a computer display interface;
1.10 Reading the interface name of the outermost layer of the reinjection Simulink model;
1.11 Finding out problem data matched with the interface name and converting the data format into a timeeries format;
1.12 Extracting reinjection data;
in the step 2), the interface transformation of the replication model is specifically that all original interfaces of the replication model are deleted, then a specific reinjection interface From work space is added to the replication model, and the reinjection interface and the extracted reinjection data are directly associated, so that a reinjection model is formed.
2. The method for real vehicle data reinjection of Simulink model according to claim 1, wherein: during reinjection data extraction in step 1), firstly determining a problem model on a real vehicle based on real vehicle problem data, then finding a reinjection Simulink model corresponding to the problem model on the real vehicle on a computer, completely reading out interface names required by the reinjection Simulink model, then de-matching the interface names into the problem data, extracting data with consistent names, and converting the data into a timeses format, thereby realizing reinjection data extraction.
3. A system for implementing the method of real vehicle data reinjection Simulink model of claim 1, wherein: comprising
An interactive interface module; the interactive interface module is provided with an interactive interface, and the interactive interface comprises a plurality of plates for reinjection data loading, reinjection model loading, reinjection starting buttons, reinjection progress and information prompt;
reinjection data extraction module: the method is used for extracting effective data from problem data on a real vehicle, and converting the effective data into a data format timeses which can be directly injected by a Simlink model;
and (3) a reinjection model construction module: the method is used for copying the reinjection Simulink model matched with the problem model on the real vehicle on the computer to obtain a copy model, and modifying an interface of the copy model so that reinjection data is reinjected into the copy model through the modified interface.
4. A system according to claim 3, characterized in that: setting a reinjection data loading button on the interactive interface, clicking the reinjection data loading button can directly enter a computer file system to select corresponding problem data, and displaying an absolute path of the problem data on the interactive interface after the selection is completed; this path will become the entry for the extraction of the reinjection data and the corresponding data will become the target data for the reinjection.
5. A system according to claim 3, characterized in that: setting a reinjection model loading button on the interactive interface, clicking the reinjection model loading button can directly access a computer file system to select a model to be reinjected, displaying an absolute path of the model on the interactive interface after the selection is completed, wherein the path is to be an extraction inlet of the reinjected model, and the corresponding model is to be a target model of reinjection.
6. A system according to claim 3, characterized in that: and setting a reinjection starting button on the interactive interface, clicking the reinjection starting button, and starting a data reinjection function.
7. A system according to claim 3, characterized in that: and a reinjection progress prompt bar is arranged on the interactive interface and used for prompting the reinjection progress.
8. A system according to claim 3, characterized in that: and an information prompt box is arranged on the interactive interface, and abnormal conditions and execution results are displayed.
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