CN113448257A - Simulation test method and platform for avionics cabin display system - Google Patents
Simulation test method and platform for avionics cabin display system Download PDFInfo
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Abstract
The application relates to a computer processing technology, in particular to a simulation test method and platform for an avionics cockpit display system. The method comprises the steps of S1, obtaining a picture Display model of a cockpit Display system designed based on SCADE Display, and determining an interface of the picture Display model; step S2, constructing a simulation application program based on SCADE Suite; s3, generating display parameters for cockpit display through the data simulation submodel, and generating airplane control instruction data through the control simulation submodel; step S4, logically processing the display parameters and the airplane control instruction data through a display software control logic sub-model to generate a cockpit display interface display logic, and assigning values to a picture display model through an interface; and step S5, rendering and displaying through the picture display model. The method and the device solve the problems that simulation testing of the avionics cockpit display system is difficult to achieve and time-consuming, and software quality is difficult to guarantee, can reduce testing cost and improve software quality.
Description
Technical Field
The application relates to a computer processing technology, in particular to a simulation test method and platform for an avionics cockpit display system.
Background
In the current development process of the comprehensive avionics cockpit display system, the test work of display software is carried out by using a traditional test method. The defects of the traditional test method not only increase the development risk to a great extent, but also make the maintenance and upgrade of the product difficult.
The main problems existing in the conventional test method include:
1) the integrated avionics cabin display software needs to be crosslinked with a plurality of other subsystems, the testing process needs to be matched with other suppliers, the coordination and communication work among different suppliers is complex, and the difficulty of the testing work is increased.
2) In the traditional test method, the software development needs to be displayed, and the target platform can be taken for testing after the software development cross-linked with the software development is completed. Not only does this present a problem of mutual waiting between the relevant suppliers, but the extensive regression testing, which requires frequent software burning operations, wastes a significant amount of time.
3) Each subsystem in the integrated avionics cabin system needs to be tested on a target platform, the cost of the target platform is high, and generally, only one target platform can be configured for one model, so that infinite resources are not provided for testing each subsystem, the resources of the test platform are in shortage, and the test time allocated to each subsystem is short. The less test time inevitably causes insufficient test, which not only affects the quality of the software, but also may cause unsuccessful software development.
4) In the test process of the display software of the integrated avionics cockpit, other subsystems are required to be matched with and prepare relevant test scenes, the preparation work of test data is difficult, time is consumed, frequent regression tests are carried out, and a large amount of repeated work is generated.
5) And the analysis of test results and error tracing are difficult. In the test process, in order to analyze the test result, the test process data is inevitably required to be checked, so that a large amount of redundant printing information codes are required to be added, the data is also not visually checked, the analysis difficulty is increased, and a lot of test time is increased.
Disclosure of Invention
In order to solve the problems, the application provides an avionics cockpit display system simulation test method and platform, most of the test work of comprehensive avionics cockpit display software is concentrated on testing a software application layer, the test time of the application layer model is greatly reduced by fully testing the software application layer model, and the problems of high test difficulty, time consumption and difficulty in guaranteeing the software quality can be solved to a great extent.
The application provides a simulation test method for an avionics cockpit display system in a first aspect, which mainly comprises the following steps:
step S1, acquiring a picture Display model of a cockpit Display system designed based on SCADE Display, and determining an interface of the picture Display model;
step S2, constructing a simulation application program based on SCADE Suite, wherein the simulation application program comprises a test integration model, an adaptation interface for data interaction with an interface of the picture display model is determined in the test integration model, and connection is established between the interface and the adaptation interface, wherein the test integration model comprises a display software control logic sub-model, a data simulation sub-model and a control simulation sub-model;
step S3, generating display parameters for cockpit display through the data simulation submodel, and generating airplane control instruction data through the control simulation submodel;
step S4, carrying out logic processing on the display parameters and the airplane control instruction data through the display software control logic submodel to generate a cockpit display interface display logic, and assigning values to the picture display model through the interface;
and step S5, rendering and displaying through the picture display model.
Preferably, the method further comprises the following steps:
and step S6, comparing the interface displayed by the picture display model with a preset result picture, and determining whether the display of the avionics cabin display system is correct.
Preferably, the step S2 is followed by:
and step S21, jointly compiling and linking the codes formed by the test integration model and the codes formed by the picture display model to form a simulation application program.
Preferably, in step S4, a plurality of output points are provided for outputting intermediate data of a plurality of computing nodes in the computation process for generating the cockpit display interface display logic.
The second aspect of the present application provides an avionics cockpit display system simulation test platform, which mainly includes:
the device comprises a picture Display model acquisition module, a picture Display model acquisition module and a picture Display model acquisition module, wherein the picture Display model acquisition module is used for acquiring a picture Display model of a cockpit Display system designed based on SCADE Display and determining an interface of the picture Display model;
the system comprises a test integration model acquisition module, a simulation module and a simulation module, wherein the test integration model acquisition module is used for constructing a simulation application program based on SCADE Suite, the simulation application program comprises a test integration model, an adaptation interface for data interaction with an interface of a picture display model is determined in the test integration model, and connection is established between the interface and the adaptation interface, wherein the test integration model comprises a display software control logic sub-model, a data simulation sub-model and a control simulation sub-model;
the simulation data generation module is used for generating display parameters for cockpit display through the data simulation submodel and generating airplane control instruction data through the control simulation submodel;
the data interaction module is used for carrying out logic processing on the display parameters and the airplane control instruction data through the display software control logic submodel to generate a cockpit display interface display logic and assigning values to the picture display model through the interface;
and the picture display module is used for rendering and displaying through the picture display model.
Preferably, the method further comprises the following steps:
and the comparison module is used for comparing the interface displayed by the picture display model with a preset result picture and determining whether the display of the avionics cockpit display system is correct or not.
Preferably, the system further comprises a compiling module, which is used for jointly compiling and linking the code formed by the test integration model and the code formed by the picture display model to form a simulation application program.
Preferably, a plurality of output points are designed in the data interaction module for outputting intermediate data of a plurality of computing nodes in a computing process for generating the cockpit display interface display logic.
The method and the device solve the problems that simulation testing of the avionics cockpit display system is difficult to achieve and time-consuming, and software quality is difficult to guarantee, can reduce testing cost and improve software quality.
Drawings
Fig. 1 is a flowchart of a simulation test method for an avionics cockpit display system according to the present application.
Fig. 2 is a schematic diagram of an application layer composition of the integrated avionics cockpit display software according to the embodiment shown in fig. 1.
FIG. 3 is a schematic diagram of a model architecture required by the joint simulation test platform.
FIG. 4 is a schematic diagram of the interface between the SCADE Suite model and the SCADE Display model.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Embodiments of the present application will be described in detail below with reference to the drawings.
As shown in fig. 1, a first aspect of the present application provides a simulation test method for an avionics cockpit display system, which mainly includes:
step S1, acquiring a picture Display model of a cockpit Display system designed based on SCADE Display, and determining an interface of the picture Display model;
step S2, constructing a simulation application program based on SCADE Suite, wherein the simulation application program comprises a test integration model, an adaptation interface for data interaction with an interface of the picture display model is determined in the test integration model, and connection is established between the interface and the adaptation interface, wherein the test integration model comprises a display software control logic sub-model, a data simulation sub-model and a control simulation sub-model;
step S3, generating display parameters for cockpit display through the data simulation submodel, and generating airplane control instruction data through the control simulation submodel;
step S4, carrying out logic processing on the display parameters and the airplane control instruction data through the display software control logic submodel to generate a cockpit display interface display logic, and assigning values to the picture display model through the interface;
and step S5, rendering and displaying through the picture display model.
In some optional embodiments, further comprising:
and step S6, comparing the interface displayed by the picture display model with a preset result picture, and determining whether the display of the avionics cabin display system is correct.
In some optional embodiments, the step S2 is further followed by:
and step S21, jointly compiling and linking the codes formed by the test integration model and the codes formed by the picture display model to form a simulation application program.
In some alternative embodiments, a plurality of output points are designed in step S4 for outputting intermediate data of a plurality of computing nodes for tracing in the computing process of generating the cockpit display interface display logic.
In the application, the application layer of the display software of the integrated avionics cockpit is mainly divided into two parts, namely logic control and display pictures, in terms of functions. As shown in fig. 2. The control logic model realizes the control logic of the display software and is mainly used for responding to the operation of a pilot on a display picture. The display picture model is used for displaying all information needing to be displayed in the comprehensive avionics cockpit system, including engine states, situation data, navigation information and the like. And interactive data are transmitted between the control logic model and the display picture model through a data interface. In order to make the control logic and the Display screen of the application layer suitable for the developed test platform, the control logic model needs to be realized by using a SCADE Suite tool, and the Display screen model needs to be realized by using a SCADE Display model.
The joint simulation test platform based on SCADE Suite and Display comprises four main stages in flow: the method comprises a model preparation stage, a model interface adaptation stage, a simulation test operation stage and a result analysis stage. Each stage is described in detail below.
First, model preparation phase
The joint simulation test platform is used for testing the application layer of the whole display software, so that a simulation model of the integrated avionics cabin display system subsystem software in an interactive relationship with the display software is required besides a necessary application layer model of the display software.
The method comprises the following steps that firstly, a data simulation model is used for simulating data for providing Display for Display software, such as situation data, navigation information, an engine state, atmospheric data, sensor data of each path and the like, the data are sent to a Display software control logic model after being formed, an input interface in the Display software data logic model is assigned, and then rendering Display of the Display control software is carried out through SCADE Display;
secondly, the control simulation model is used for simulating airplane control instruction data, such as screen control data and hard-line data, the data are sent to the Display software control logic model after being formed, an input interface in the Display software data logic model is assigned, and then rendering Display of the Display control software is carried out through SCADE Display;
and step three, comparing the picture screenshot generated by the display control software with a correct picture preset in a database to obtain whether the software display is correct, wherein the mode of recording the preset data is suitable for repeated change of the onboard software. For example, in an electronic battle scene, a switching mode of thunder detection and passing detection is transmitted through a control simulation mode, supporting data of a thunder detection spectrum and a waterfall diagram are transmitted to a display software control logic model through a data simulation model, and whether display of display software is correct or not can be obtained through picture comparison of preset results.
In order to simplify the test process, simulation models of only two types of subsystem software can be designed, each subsystem software does not need to be simulated, and the functions of only the two types of subsystem software are simulated.
The joint simulation between the SCADE Suite and the SCADE Display adopts a point-to-point mode, that is, the simulation is performed on a single SCADE Suite model and a single SCADE Display model, so that in the model preparation stage, a control logic model, a control subsystem software simulation model and a data-driven subsystem software simulation model of the Display software need to be integrated into a higher-level model for joint simulation with a picture model of the Display software.
The model architecture required by the joint simulation test platform is shown in fig. 3.
Second, model interface adaptation stage
The joint simulation test platform is a joint between the SCADE Suite model and the SCADE Display model, and data interaction relation exists between the SCADE Suite model and the SCADE Display model, so that after preparation work of all the models is completed and before simulation test starts, interface connection relation needs to be established between the SCADE Suite test integration model and the SCADE Display picture model.
The SCADE Suite provides a convenient and visual interface connection function, and is used for realizing the interface connection between the SCADE Suite model and the SCADE Display model. As shown in FIG. 3, the SCADE Suite I/Os part lists all input/output interfaces of the SCADE Suite test integration model. The graphic Panel I/Os part lists all input and output interfaces of the SCADE Display picture model. The Connections section lists all the data Connections that have been established.
It should be noted that, an input or output interface is selected at the SCADE Suite I/Os part, an output or input interface is selected at the Graphical Panel I/Os part, and then the interface connection between the two interfaces can be realized through the connection function provided in the right mouse button menu.
It should be further noted that, when the interface between the SCADE Suite model and the SCADE Display model is docked, only the input interface and the output interface, and the output interface and the input interface can be docked, which is also logical.
Third, simulation test operation stage
After the model interface adaptation is completed, the simulation test work can be carried out. The main flow of performing the co-simulation is as follows:
the code generator simulates Configuration items to carry out relevant setting, the main object of Configuration is a 'graphic Panel' option, wherein a Configuration column needs to select 'SCADE Suite Co-simulation', and 'None' cannot be selected, otherwise, the screen application cannot be run after simulation running.
And (2) building a simulation application program, wherein the simulation application program is built in the SCADE Suite, codes of corresponding models (including all control logic models and picture models) are generated in the process, codes related to an adaptive interface are automatically generated and some integration related codes are added, the codes are combined together for compiling and linking, and finally the application program required by simulation is generated.
And (3) running simulation, after the simulation application program is built, carrying out simulation, and after the simulation is run in the SCADE Suite, giving an independent simulation example view and simultaneously running an independent display screen application program (corresponding to the tested display screen).
In the SCADE Suite simulation example view, many operations may be performed to facilitate testing, such as: one or more simulation cycles can be executed, and simultaneously, the simulation can be continuously run; the test input interface data may be manually entered in the left instance window or the view window; input/output interface data may be viewed in the left instance window or the view window; a test case script can be loaded, and testing is carried out according to the script; the simulation test process can be saved, so that the follow-up review or the formulation of the entry point of the next test is facilitated; the time interval of the simulation cycle can be set; one or more simulation cycles may be rolled back.
In the display screen application program, a tester can view the running state of the current screen and can operate interactive objects (such as buttons, menus and the like) in the display screen.
In the whole simulation test operation process, the SCADE Suite model and the display picture are linked, so that the control logic and the display picture of the display software can be fully tested according to the test case formulated by the test engineer.
Fourthly, a result analysis stage
When the running result is inconsistent with the expected result in the simulation test process, a tester and a design developer can conveniently check the output data of each stage in the SCADE Suite simulation example view so as to facilitate tracing the source of the error.
The second aspect of the present application provides an avionics cockpit display system simulation test platform corresponding to the above method, which mainly includes:
the device comprises a picture Display model acquisition module, a picture Display model acquisition module and a picture Display model acquisition module, wherein the picture Display model acquisition module is used for acquiring a picture Display model of a cockpit Display system designed based on SCADE Display and determining an interface of the picture Display model;
the system comprises a test integration model acquisition module, a simulation module and a simulation module, wherein the test integration model acquisition module is used for constructing a simulation application program based on SCADE Suite, the simulation application program comprises a test integration model, an adaptation interface for data interaction with an interface of a picture display model is determined in the test integration model, and connection is established between the interface and the adaptation interface, wherein the test integration model comprises a display software control logic sub-model, a data simulation sub-model and a control simulation sub-model;
the simulation data generation module is used for generating display parameters for cockpit display through the data simulation submodel and generating airplane control instruction data through the control simulation submodel;
the data interaction module is used for carrying out logic processing on the display parameters and the airplane control instruction data through the display software control logic submodel to generate a cockpit display interface display logic and assigning values to the picture display model through the interface;
and the picture display module is used for rendering and displaying through the picture display model.
In some optional embodiments, further comprising:
and the comparison module is used for comparing the interface displayed by the picture display model with a preset result picture and determining whether the display of the avionics cockpit display system is correct or not.
In some optional embodiments, the simulation system further comprises a compiling module, configured to jointly compile and link a code formed by the test integration model and a code formed by the screen display model to form a simulation application program.
In some optional embodiments, a plurality of output points are designed in the data interaction module for outputting intermediate data of a plurality of computing nodes in a computing process for generating the cockpit display interface display logic.
The combined simulation test platform based on SCADE Suite and Display can achieve the aims of reducing test cost, improving software quality and the like, and has the following main advantages:
the combined simulation test platform is applied, the test can be started only by completing the model design without waiting for the integration, the verification process is advanced, so that a tester can find the software problem in the early stage of the project, the risk of error finding in the later stage and the caused test cost increase are reduced, and the concept of 'early finding and early solving' of the error in the software development process is met;
by applying the combined simulation test platform, a large amount of test work does not need target platform resources, so that the test of the display software is facilitated, and limited platform resources can be distributed to the test work of other subsystems;
the application of the combined simulation test platform greatly reduces complex and difficult coordination and communication work between integrators and suppliers;
the combined simulation test platform combines the advantages of an SCADE tool, applies a large number of visual and automatic means, and helps testers to simulate test input, load/store test scenes, and check/analyze test processes and test results.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A simulation test method for an avionics cockpit display system is characterized by comprising the following steps:
step S1, acquiring a picture Display model of a cockpit Display system designed based on SCADE Display, and determining an interface of the picture Display model;
step S2, constructing a simulation application program based on SCADE Suite, wherein the simulation application program comprises a test integration model, an adaptation interface for data interaction with an interface of the picture display model is determined in the test integration model, and connection is established between the interface and the adaptation interface, wherein the test integration model comprises a display software control logic sub-model, a data simulation sub-model and a control simulation sub-model;
step S3, generating display parameters for cockpit display through the data simulation submodel, and generating airplane control instruction data through the control simulation submodel;
step S4, carrying out logic processing on the display parameters and the airplane control instruction data through the display software control logic submodel to generate a cockpit display interface display logic, and assigning values to the picture display model through the interface;
and step S5, rendering and displaying through the picture display model.
2. The avionics cockpit display system simulation testing method of claim 1 further comprising:
and step S6, comparing the interface displayed by the picture display model with a preset result picture, and determining whether the display of the avionics cabin display system is correct.
3. The avionics cockpit display system simulation testing method of claim 1, further comprising, after step S2:
and step S21, jointly compiling and linking the codes formed by the test integration model and the codes formed by the picture display model to form a simulation application program.
4. The simulation test method for avionics cockpit display system of claim 1 wherein a plurality of output points are designed in step S4 for outputting intermediate data of a plurality of computing nodes during the computation process for generating the display logic of the cockpit display interface.
5. An avionics cockpit display system simulation test platform, comprising:
the device comprises a picture Display model acquisition module, a picture Display model acquisition module and a picture Display model acquisition module, wherein the picture Display model acquisition module is used for acquiring a picture Display model of a cockpit Display system designed based on SCADE Display and determining an interface of the picture Display model;
the system comprises a test integration model acquisition module, a simulation module and a simulation module, wherein the test integration model acquisition module is used for constructing a simulation application program based on SCADE Suite, the simulation application program comprises a test integration model, an adaptation interface for data interaction with an interface of a picture display model is determined in the test integration model, and connection is established between the interface and the adaptation interface, wherein the test integration model comprises a display software control logic sub-model, a data simulation sub-model and a control simulation sub-model;
the simulation data generation module is used for generating display parameters for cockpit display through the data simulation submodel and generating airplane control instruction data through the control simulation submodel;
the data interaction module is used for carrying out logic processing on the display parameters and the airplane control instruction data through the display software control logic submodel to generate a cockpit display interface display logic and assigning values to the picture display model through the interface;
and the picture display module is used for rendering and displaying through the picture display model.
6. The avionics cockpit display system simulation test platform of claim 5 further comprising:
and the comparison module is used for comparing the interface displayed by the picture display model with a preset result picture and determining whether the display of the avionics cockpit display system is correct or not.
7. The simulation test platform for an avionics cockpit display system according to claim 5, further comprising a compiling module for jointly compiling and linking a code formed by the test integration model and a code formed by the screen display model to form a simulation application program.
8. The avionics cockpit display system simulation test platform of claim 5 where a plurality of output points are designed into the data interaction module for outputting intermediate data of a plurality of compute nodes during the computation process to generate the cockpit display interface display logic.
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