Real-time interaction test method for flight trainer undercarriage

Abstract

The invention belongs to the technical field of flight training device undercarriage testing, and particularly relates to a flight training device undercarriage real-time interaction testing method, which is based on a Simulink and Matlab App joint simulation technology, constructs an accurate undercarriage folding and unfolding control simulation model through Simulink and designs a friendly human-computer interaction interface through Matlab App. The key problems of multi-dimensional data interaction, complex logic control, data visualization and the like are solved. On one hand, landing gear folding and unfolding working conditions including normal folding up, normal unfolding, emergency unfolding, over-control unfolding and the like can be comprehensively simulated. And on the other hand, through an intelligent man-machine interaction testing mechanism, the quality and efficiency of simulation model testing can be remarkably improved, and the comprehensiveness, interactivity and practicability of undercarriage folding and unfolding control model testing can be effectively improved.

Description

Technical Field

[0001] This application belongs to the field of flight trainer landing gear testing technology, specifically relating to a real-time interactive testing method for flight trainer landing gear. Background Technology

[0002] In the research and development system of flight training devices, the landing gear retraction and extension control system is a core component of the flight simulation system. Traditional landing gear retraction and extension control testing and verification methods mostly rely on physical experiments or simple simulators, which generally suffer from technical pain points such as high testing costs, strong resource dependence, and low verification efficiency.

[0003] With the iterative development of computer simulation technology, dynamic simulation methods have gradually become an effective means of researching and verifying complex systems due to their advantages of low cost and high controllability. However, existing simulation schemes generally lack efficient human-computer interaction mechanisms in the early testing phase. This not only makes it difficult for testers to adjust test parameters in real time and dynamically monitor the test process, but also leads to a chain of problems such as lengthy integration testing cycles, increased iterations, high overall costs, and insufficient reliability of verification results. Ultimately, these problems are difficult to adapt to the tight development pace of flight training devices.

[0004] In view of this, there is an urgent need in the field to develop an innovative testing method to improve the comprehensiveness, interactivity and practicality of landing gear retraction and extension control model testing. Summary of the Invention

[0005] The purpose of this application is to provide a real-time interactive testing method for the landing gear of a flight trainer, in order to overcome or mitigate at least one of the known technical defects.

[0006] The technical solution of this application is:

[0007] A method for real-time interactive testing of landing gear for a flight trainer includes constructing a real-time interactive testing system for the landing gear of a flight trainer, and then conducting tests based on the real-time interactive testing system for the landing gear of the flight trainer.

[0008] A real-time interactive testing system for the landing gear of a flight trainer includes a simulation model unit, a human-computer interaction unit, and a data communication and processing unit.

[0009] The simulation model unit, based on the Simulink simulation platform, constructs a simulation model of the aircraft landing gear retraction and extension control system;

[0010] The simulation model includes an input signal processing unit, a controller unit, and an output signal processing unit, which are used to realize the functions of landing gear door opening and closing, normal landing gear retraction and extension, emergency extension, over-control extension, fault simulation, and special situation alarm.

[0011] Human-computer interaction unit such as Figure 3As shown, a user-friendly human-computer interaction interface is designed based on the Matlab App component library;

[0012] The human-computer interaction unit includes a stimulus input module and a display and alarm module;

[0013] The excitation input module provides users with virtual operating components, which in turn provide input signals to the simulation model units by executing these virtual operating components.

[0014] The display and alarm module receives the operating data output by the simulation model unit in real time and displays the operating status of the aircraft landing gear retraction and extension control system through visual charts, dynamic curves, and characters.

[0015] The data communication and processing unit establishes bidirectional data communication between the simulation model unit and the human-computer interaction unit through data monitoring, data transmission, and comprehensive data processing, ensuring the accuracy and real-time nature of the data.

[0016] According to at least one embodiment of this application, in the above-described real-time interactive testing method for the landing gear of a flight trainer, the input signal processing unit is responsible for receiving the input signals required for the operation of the simulation model, including landing gear handle, emergency release handle, overrun release handle, power supply and pressure supply status, aircraft air-to-ground status, and system fault status signals, which are then preprocessed and sent to the controller unit.

[0017] According to at least one embodiment of this application, in the above-described real-time interactive testing method for landing gear of a flight trainer, the controller unit in the simulation model unit includes a normal landing gear retraction and extension controller, an emergency extension controller, and an over-range extension controller. The controller unit receives input signals and performs precise control on each component of the landing gear retraction and extension control system according to preset control logic, and outputs landing gear-related status information and alarm signals.

[0018] According to at least one embodiment of this application, in the above-described real-time interactive testing method for the landing gear of a flight trainer, the output signal processing unit in the simulation model unit performs comprehensive processing on the status information and alarm signals output by the controller unit and then outputs them.

[0019] According to at least one embodiment of this application, in the above-described real-time interactive testing method for the landing gear of a flight trainer, the human-machine interaction unit uses the "toggle switch" in the Matlab App component library to simulate the operating components of the landing gear, including the landing gear retraction handle, the landing gear over-control release handle, the emergency release handle, etc.

[0020] By designing color changes for the "signal light" component, the landing gear signal light box and aircraft status indication functions are simulated.

[0021] The "Coordinate Area" component is used to dynamically monitor relevant parameters in real time.

[0022] According to at least one embodiment of this application, in the above-described real-time interactive testing method for the landing gear of a flight trainer, the human-computer interaction unit simulates the landing gear diagram page function by designing the shape of the "text" component and controlling the change of its fill color.

[0023] By changing the state of the "switch" component, the fault settings and aircraft status settings functions of the instructor's console are simulated.

[0024] The landing gear-related status information indication and alarm display functions are simulated by controlling parameters such as the description and color change of the characters in the "Text" component.

[0025] According to at least one embodiment of this application, in the above-described real-time interactive testing method for flight trainer landing gear, the human-machine interface is configured with functional partitions:

[0026] Control panel area: Provides virtual control handles for executing landing gear retraction and extension commands;

[0027] Landing gear signal light box area: simulates the indication function of the landing gear signal light box;

[0028] Curve monitoring area: Real-time plotting of key landing gear parameter curves;

[0029] Landing Gear Diagram Area: Simulates the landing gear diagram page function, displaying landing gear status information in a simplified diagram;

[0030] Status / Fault Setting Area: The instructor's console function of the flight simulator allows you to set the aircraft status and system faults;

[0031] Alarm information display area: Provides alarm prompts in case of abnormal landing gear retraction or extension;

[0032] Model loading area: Used to load the target test model;

[0033] Simulation running area: Control the test process by clicking the "Run" and "Pause" buttons.

[0034] According to at least one embodiment of this application, in the above-described real-time interactive testing method for the landing gear of a flight trainer, the data communication and processing unit maps the user's operation commands on the human-machine interaction unit's interface into excitation input signals for the simulation model in real time through a preset response mechanism, and transmits them to the simulation model's input interface.

[0035] According to at least one embodiment of this application, in the above-described real-time interactive testing method for the landing gear of a flight trainer, the data communication and processing unit deploys a listening module in the simulation model to monitor the excitation input signal in real time. At the same time, it executes a predefined .m script file. The .m script file is used to obtain handle information of relevant components of the human-computer interaction unit and dynamically control its state and behavior according to the output results of the simulation model.

[0036] According to at least one embodiment of this application, in the above-described real-time interactive testing method for flight trainer landing gear, the testing is performed based on a real-time interactive testing system for flight trainer landing gear, specifically as follows:

[0037] Load and run the .slx file of the simulation model in the real-time interactive test system for the landing gear of the flight trainer;

[0038] The landing gear retraction and extension process under different working conditions is simulated by triggering virtual operating components on the input excitation module of the human-machine interaction unit;

[0039] The data communication and processing unit receives the input excitation signal, converts it into a data format that the simulation model can recognize, and sends it to the simulation model. The simulation model receives the input excitation signal and performs precise control on the landing gear retraction and extension process according to the preset control logic, and outputs relevant status information and alarm signals.

[0040] The data communication and processing unit acquires the output results of the simulation model and the handle information of each component of the display and alarm module. It then performs comprehensive processing of the simulation results based on the actual display and alarm requirements, and performs real-time dynamic control of the status and behavior of each component of the display and alarm module based on the processing results.

[0041] This application has at least the following beneficial technical effects:

[0042] This paper presents a real-time interactive testing method for landing gear of a flight training device. Based on co-simulation technology using Simulink and Matlab App, it constructs an accurate landing gear retraction and extension control simulation model in Simulink and designs a user-friendly human-computer interaction interface in Matlab App, solving key problems such as multi-dimensional data interaction, complex logic control, and data visualization. On the one hand, it can comprehensively simulate landing gear retraction and extension conditions, including normal retraction, normal extension, emergency extension, and over-controlled extension. On the other hand, through an intelligent human-computer interaction testing mechanism, it can significantly improve the quality and efficiency of simulation model testing, effectively enhancing the comprehensiveness, interactivity, and practicality of the landing gear retraction and extension control model testing. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the real-time interactive testing system for the landing gear of a flight trainer provided in an embodiment of this application;

[0044] Figure 2 This is a schematic diagram of the simulation model structure of the landing gear retraction and extension control system provided in the embodiments of this application;

[0045] Figure 3 This is a schematic diagram of the human-computer interaction unit interface provided in an embodiment of this application;

[0046] Figures 4-7 This is a schematic diagram illustrating the four stages of the normal landing gear deployment process provided in this application embodiment: the door opening process, the landing gear deployment process, the door closing process, and the landing gear deployment and door closing process.

[0047] Figures 8-9 This is a schematic diagram illustrating the landing gear emergency deployment process provided in this application embodiment: landing gear not deployed alarm and landing gear emergency deployment completed.

[0048] To better illustrate this embodiment, some content in the accompanying drawings may be omitted, enlarged, or reduced. They are for illustrative purposes only and should not be construed as limiting the scope of this application. Detailed Implementation

[0049] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, and other related parts can be referred to the general design.

[0050] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The word "comprising" as used in this application description indicates that the concept preceding the word encompasses the concepts listed following the word and their equivalents, without excluding other related concepts.

[0051] Furthermore, the terms indicating location used in the description of this application are only used to indicate relative directions or positional relationships. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation" and "connection" used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0052] A method for real-time interactive testing of flight trainer landing gear includes constructing a real-time interactive testing system for flight trainer landing gear, and then conducting tests based on the real-time interactive testing system for flight trainer landing gear.

[0053] The real-time interactive testing system for the landing gear of a flight trainer mainly includes a simulation model unit, a human-computer interaction unit, and a data communication and processing unit.

[0054] Simulation model unit, such as Figure 2 As shown, a simulation model of the aircraft landing gear retraction and extension control system is constructed based on the Simulink simulation platform. The simulation model mainly consists of three core units: an input signal processing unit, a controller unit, and an output signal processing unit. Specifically, it realizes functions such as landing gear door opening and closing, normal landing gear retraction and extension, emergency extension, over-control extension, fault simulation, and special situation alarm.

[0055] The input signal processing unit is responsible for receiving the input signals required for the simulation model to run, including landing gear handle, emergency release handle, overrun release handle, power supply and pressure supply status, aircraft air-to-ground status, and system fault status signals, which are then sent to the controller unit after preprocessing.

[0056] The controller unit includes a normal landing gear retraction and extension controller, an emergency extension controller, and an over-range extension controller. The controller unit receives input signals and performs precise control of each component of the landing gear retraction and extension control system according to preset control logic, and outputs relevant landing gear status information and alarm signals.

[0057] The output signal processing unit processes the status information and alarm signals output by the controller unit and then outputs them.

[0058] Human-computer interaction unit such as Figure 3 As shown, a user-friendly human-computer interaction interface is designed based on the Matlab App component library. The human-computer interaction unit mainly includes an input module and a display and alarm module.

[0059] The excitation input module provides users with virtual operating components, which provide input signals to the simulation model units by executing the virtual operating components.

[0060] The display and alarm module receives the operating data output by the simulation model unit in real time and displays the operating status of the aircraft landing gear retraction and extension control system through visual charts, dynamic curves, and characters, which facilitates real-time testing and analysis by users.

[0061] The human-computer interaction unit uses the "toggle switch" component from the Matlab App component library to simulate the operating components of the landing gear, such as the landing gear retraction handle, landing gear over-range release handle, and emergency release handle. It simulates the landing gear signal light box and aircraft status indication functions by designing the color changes of the "signal light" component. The "coordinate area" component is used for dynamic real-time monitoring of relevant parameters. The shape of the "text" component and its fill color are controlled to simulate the landing gear diagram page function. Changing the state of the "switch" component simulates the fault setting and aircraft status setting functions of the instructor's control panel. Controlling the description and color changes of the characters in the "text" component simulates the indication and alarm display functions related to landing gear status information.

[0062] The human-computer interaction unit interface includes the following functional areas:

[0063] Control panel area: Provides virtual control handles for executing landing gear retraction and extension commands, etc.

[0064] Landing gear signal light box area: simulates the indication function of the landing gear signal light box;

[0065] Curve monitoring area: Real-time plotting of key landing gear parameter curves;

[0066] Landing Gear Diagram Area: Simulates the landing gear diagram page function, displaying landing gear status information in a simplified diagram;

[0067] Status / Fault Setting Area: The instructor's console function of the flight simulator allows you to set the aircraft status and system faults;

[0068] Alarm information display area: Provides alarm prompts in case of abnormal landing gear retraction or extension;

[0069] Model loading area: Used to load the target test model;

[0070] Simulation running area: Control the test process by clicking the "Run" and "Pause" buttons.

[0071] The data communication and processing unit mainly establishes bidirectional data communication between the simulation model unit and the human-computer interaction unit through data monitoring, data transmission, and comprehensive data processing to ensure the accuracy and real-time nature of the data.

[0072] Specifically, through a pre-defined response mechanism (i.e., callback function), user commands on the human-computer interaction unit's interface are mapped in real time to excitation input signals of the simulation model and transmitted to the simulation model's input interface. A listening module is deployed in the simulation model to monitor the excitation input signals in real time, while simultaneously executing a predefined .m script file. The .m script file obtains handle information of relevant components of the human-computer interaction unit and dynamically controls their state and behavior based on the simulation model's output, thereby achieving real-time data interaction between the simulation model and the human-computer interaction unit interface.

[0073] Taking the landing gear handle and coordinate area curve as an example, the relevant pseudocode is as follows:

[0074] / * Define a callback function to pass commands from the landing gear handle assembly to the simulation model. * /

[0075] value = app.gear_Switch.Value;

[0076] if strcmp(value, 'Down')

[0077] pos=1;

[0078] else

[0079] pos=0;

[0080] end

[0081] set_param([model,' / bGearSwtichDown'],'Value',num2str(pos));

[0082] / * Define listener function * /

[0083] h=add_exec_event_listener('gearapp / gearswitch','PostOutputs',@EventListener);

[0084] / *.m files obtain coordinate region handle information * /

[0085] [tf, idx_axes1] = ismember('axes1', all_tags);

[0086] if tf

[0087] AxesHandle1 = all_tag_objects(idx_axes1);

[0088] / *.m files plot curves in real time based on the simulation model's results and assign them to the coordinate region component. * /

[0089] plot(AxesHandle1, XData, Y3Data,'.','Color','r').

[0090] The test was conducted using a real-time interactive testing system for the landing gear of a flight trainer, as detailed below:

[0091] Load and run the .slx file of the simulation model in the real-time interactive test system for the landing gear of the flight trainer. Simulate the landing gear retraction and extension process under different operating conditions by triggering virtual operating components (such as retraction and extension operation commands, fault type selection, system status settings, etc.) on the input excitation module of the human-machine interface unit.

[0092] The data communication and processing unit receives the input excitation signal, converts it into a data format recognizable by the simulation model, and then sends it to the simulation model. The simulation model receives the input excitation signal and precisely controls the landing gear retraction and extension process according to the preset control logic, and outputs relevant status information and alarm signals.

[0093] The data communication and processing unit acquires the output results of the simulation model and the handle information of each component of the display and alarm module. It then performs comprehensive processing on the simulation results according to the actual display and alarm requirements, and uses the processing results to perform real-time dynamic control on the status and behavior of each component of the display and alarm module.

[0094] Case Study 1: Landing Gear Descending Normally Test.

[0095] refer to Figure 4 Load the target test model .slx file. The initial system state is: landing gear retracted, aircraft in the air, power and hydraulics normal. By operating the landing gear handle to the "Down" position on the control panel, the landing gear door begins to open. After the door is fully open, the landing gear begins to lower. After the landing gear is lowered and locked, the door begins to close.

[0096] from Figure 4 As you can see, the landing gear indicator light box is gray, and the "Unlocked" text is red, indicating that the landing gear handle and landing gear are not in the correct positions. In the landing gear diagram, the landing gear door is orange, and the landing gear is gray, indicating that the door is opening or closing, and the landing gear is in the retracted position. From... Figure 5 As you can see in the landing gear diagram, the hatch is green and the landing gear is orange, indicating that the hatch is open and the landing gear is in the process of retraction or extension. From Figure 6As you can see, the indicator light on the landing gear signal box is green, and the "Unlocked" text is gray, indicating that the landing gear is down. In the landing gear diagram, the hatch is orange, and the landing gear is green, indicating that the landing gear is down and the hatch is in the process of opening or closing. From... Figure 7 As you can see, the landing gear diagram shows the doors in gray and the landing gear in green, indicating that the landing gear is down and the doors are closed. Additionally, the curved monitoring area visually displays the position information of the landing gear doors and the landing gear itself.

[0097] Case Study 2: Landing Gear Emergency Deployment Test.

[0098] refer to Figure 5 The system's initial state is: landing gear retracted, aircraft in the air, power supply normal, hydraulic failure "On". By operating the landing gear handle to the "Down" position on the control panel, the landing gear door does not open, the landing gear does not move, and a red "Warning: Landing gear not deployed" appears within a specified time. Emergency deployment test begins: operating the emergency deployment handle to the "Down" position, the landing gear door opens rapidly, the landing gear deploys rapidly, and the aforementioned red warning disappears.

[0099] from Figure 8 As can be seen, the landing gear indicator lights are gray, and the "Unlocked" text is red, indicating that the landing gear handle and landing gear position are inconsistent. In the landing gear diagram, both the landing gear door and the landing gear are gray, indicating that the landing gear door and landing gear are in the closed and retracted states, respectively. The alarm display area shows a red "Warning: Landing Gear Not Deployed," indicating that the landing gear has not been deployed within the specified time. The position information in the curve monitoring area remains unchanged. From... Figure 9 As you can see, the indicator lights on the landing gear signal box are green, and the "Unlocked" text is gray, indicating that the landing gear has been deployed. In the landing gear diagram, both the hatch and the landing gear are green, indicating that the landing gear has been deployed in an emergency, but the hatch remains open.

[0100] The real-time interactive testing method for landing gear of flight trainers disclosed in the above embodiments can realize functional performance simulation and special situation simulation of landing gear retraction and extension control system, provide a reliable human-machine interface, and monitor and provide feedback on the system's full life cycle status in real time. It can overcome the limitations of traditional offline simulation, significantly improve testing efficiency and the intuitiveness of the testing process, and has been successfully applied in practice.

[0101] The simulation model unit and the human-computer interaction unit adopt a modular design, which is easy to modify and expand. They can be quickly modified according to the landing gear layout and applied to different types of flight trainers, which has great flexibility and application value.

[0102] It supports decoupled testing and verification of simulation models from other aircraft systems, directly isolating the influence of external constraints and significantly improving the independence and flexibility of testing. The testing methods can be applied to different aircraft simulation systems, including but not limited to aircraft braking control systems, hydraulic systems, and engines, depending on the simulation requirements.

[0103] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A real-time interactive testing method for the landing gear of a flight training device, characterized in that, This includes building a real-time interactive testing system for the landing gear of a flight trainer, and then conducting tests based on the real-time interactive testing system for the landing gear of the flight trainer. A real-time interactive testing system for the landing gear of a flight trainer includes a simulation model unit, a human-computer interaction unit, and a data communication and processing unit. The simulation model unit, based on the Simulink simulation platform, constructs a simulation model of the aircraft landing gear retraction and extension control system; The simulation model includes an input signal processing unit, a controller unit, and an output signal processing unit, which are used to realize the functions of landing gear door opening and closing, normal landing gear retraction and extension, emergency extension, over-control extension, fault simulation, and special situation alarm. The human-computer interaction unit is shown in Figure 3. Based on the Matlab App component library, a user-friendly human-computer interaction interface is designed. The human-computer interaction unit includes a stimulus input module and a display and alarm module; The excitation input module provides users with virtual operating components, which in turn provide input signals to the simulation model units by executing these virtual operating components. The display and alarm module receives the operating data output by the simulation model unit in real time and displays the operating status of the aircraft landing gear retraction and extension control system through visual charts, dynamic curves, and characters. The data communication and processing unit establishes bidirectional data communication between the simulation model unit and the human-computer interaction unit through data monitoring, data transmission, and comprehensive data processing, ensuring the accuracy and real-time nature of the data.

2. The real-time interactive testing method for landing gear of a flight trainer according to claim 1, characterized in that, The input signal processing unit is responsible for receiving the input signals required for the simulation model to run, including landing gear handle, emergency release handle, overrun release handle, power supply and pressure supply status, aircraft air-to-ground status, and system fault status signals. After preprocessing, these signals are sent to the controller unit.

3. The real-time interactive testing method for landing gear of a flight trainer according to claim 2, characterized in that, In the simulation model unit, the controller unit includes a normal landing gear retraction and extension controller, an emergency extension controller, and an over-range extension controller. The controller unit receives input signals and performs precise control on each component of the landing gear retraction and extension control system according to preset control logic, and outputs relevant landing gear status information and alarm signals.

4. The real-time interactive testing method for landing gear of a flight trainer according to claim 3, characterized in that, In the simulation model unit, the output signal processing unit performs comprehensive processing on the status information and alarm signals output by the controller unit before outputting them.

5. The real-time interactive testing method for landing gear of a flight trainer according to claim 4, characterized in that, The human-computer interaction unit uses the "toggle switch" in the Matlab App component library to simulate the operating components of the landing gear, including the landing gear retraction handle, the landing gear over-control release handle, and the emergency release handle; By designing color changes for the "signal light" component, the landing gear signal light box and aircraft status indication functions are simulated. The "coordinate area" component is used to dynamically monitor relevant parameters in real time.

6. The real-time interactive testing method for landing gear of a flight trainer according to claim 5, characterized in that, The human-computer interaction unit simulates the landing gear diagram page function by designing the shape of the "text" component and controlling the changes in its fill color; By changing the state of the "switch" component, the fault settings and aircraft status settings functions of the instructor's console are simulated; The landing gear-related status information indication and alarm display functions are simulated by controlling parameters such as the description and color change of the characters in the "text" component.

7. The real-time interactive testing method for landing gear of a flight trainer according to claim 6, characterized in that, Human-Computer Interaction Unit Interface Settings Function Division: Control panel area: Provides virtual control handles for executing landing gear retraction and extension commands; Landing gear signal light box area: simulates the indication function of the landing gear signal light box; Curve monitoring area: Real-time plotting of key landing gear parameter curves; Landing Gear Diagram Area: Simulates the landing gear diagram page function, displaying landing gear status information in a simplified diagram; Status / Fault Setting Area: The instructor's console function of the flight simulator allows you to set the aircraft status and system faults; Alarm information display area: Provides alarm prompts in case of abnormal landing gear retraction or extension; Model loading area: Used to load the target test model; Simulation running area: Control the test process by clicking the "Run" and "Pause" buttons.

8. The real-time interactive testing method for landing gear of a flight trainer according to claim 7, characterized in that, The data communication and processing unit uses a preset response mechanism to map the user's operation commands on the human-computer interaction unit's interface into excitation input signals for the simulation model in real time, and then transmits them to the simulation model's input interface.

9. The real-time interactive testing method for landing gear of a flight trainer according to claim 8, characterized in that, The data communication and processing unit monitors the excitation input signal in real time by deploying a listening module in the simulation model. At the same time, it executes a predefined .m script file. The function of the .m script file is to obtain the handle information of the relevant components of the human-computer interaction unit and dynamically control its state and behavior according to the output results of the simulation model.

10. The real-time interactive testing method for landing gear of a flight trainer according to claim 9, characterized in that, The test was conducted based on the real-time interactive testing system for the landing gear of the flight trainer, specifically as follows: Load and run the .slx file of the simulation model in the real-time interactive test system for the landing gear of the flight trainer; The landing gear retraction and extension process under different working conditions is simulated by triggering virtual operating components on the input excitation module of the human-machine interaction unit; The data communication and processing unit receives the input excitation signal, converts it into a data format that the simulation model can recognize, and sends it to the simulation model. The simulation model receives the input excitation signal and performs precise control on the landing gear retraction and extension process according to the preset control logic, and outputs relevant status information and alarm signals. The data communication and processing unit acquires the output results of the simulation model and the handle information of each component of the display and alarm module. It then performs comprehensive processing of the simulation results based on the actual display and alarm requirements, and performs real-time dynamic control of the status and behavior of each component of the display and alarm module based on the processing results.

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