Automatic test method based on large-scale iron bird comprehensive test bench

Abstract

The invention belongs to the technical field of aircraft ground tests, and relates to an automatic test method based on a large-scale iron and bird comprehensive test bench. The automatic test function based on the iron bird test bench depends on a control instruction network and a reflection memory network, a graphical script editor and a visual script executor are realized, and the script editor can complete editing of an automatic test script by combining test steps in a dragging instruction module, a connecting line and a parameter setting mode. And the script executor completes analysis and execution of the automatic test script through a visual script execution process and data monitoring in a chart mode. Through cooperation of the script editor and the script executor, a multi-system cross-linking automatic test is finally realized.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft ground testing, and specifically relates to an automated testing method based on a large iron bird comprehensive test bench. Background Art

[0002] Aircraft iron bird testing is a critical step in the development of a model aircraft, typically conducting comprehensive ground-based verification of the aircraft's performance and functionality. The iron bird test bench is a crucial system integration verification facility used during the development and certification process for the aircraft. It can perform ground simulation tests of flight control systems, hydraulic systems, and other systems on behalf of the aircraft. Effective and accurate testing methods are crucial for the successful implementation of iron bird testing.

[0003] Traditional approaches to iron bird testing involve analyzing the test environment and test methods based on specific test requirements, then centrally controlling the test equipment and achieving comprehensive control over the entire test process. The test commander designates personnel familiar with the safe operating procedures for fixed test equipment. Through collaboration between the test commander and test personnel, verification testing is completed. Specific testing methods generally fall into two categories: the first involves manual participation at all stages of the test process. The second involves manual operation of key steps in the test process, such as command issuance at the start of the test, data recording, storage, and downloading. Other streamlined steps are automated. The former involves excessive test resources, resulting in low efficiency and low test accuracy. The latter improves test efficiency, but for large-scale system verification tests involving a large number of test equipment, typically dozens or even dozens, operating relatively independently, this leads to high labor costs and prolonged testing time. Furthermore, there is still a lack of effective management capabilities for the entire test system. These approaches suffer from long test completion times, numerous steps, and high labor costs.

[0004] How to control the test equipment, achieve coordinated operation between equipment, improve test efficiency, save labor costs, and complete test verification is one of the important issues that the iron bird test currently faces and urgently needs to solve. Summary of the Invention

[0005] Purpose of the Invention

[0006] The method of the present invention realizes full automation of the test process. Through the test management system, all devices involved in the test are controlled, and data transmission, recording and storage such as command sending, status feedback and file transfer between systems are completed in the whole process.

[0007] Specifically:

[0008] (1) Achieve full automation of the test;

[0009] (2) Automated testing reduces the number of testers and testing time, thus lowering testing costs;

[0010] (3) Automated testing covers more test scenarios;

[0011] (4) Provide important technical support for the testing technology of aviation products;

[0012] Technical Solution

[0013] An automated test method based on a large iron bird comprehensive test bench comprises the following steps:

[0014] Step 1. Test start: Start the entire automated testing process.

[0015] Step 2. Test status check: Conduct a comprehensive check on the test system status, support equipment status, attendance of test personnel, site safety status, hydraulic energy status, and ground power status.

[0016] Step 3. Determine whether the test preparation is complete:

[0017] Step 4. If you are ready (Y): Perform the following operations in order:

[0018] Furthermore, in step 4, if not ready (N): loop back to the "test status check" link and recheck each status until the requirements are met.

[0019] Step 5. Turn on the power: Supply power to the test system and related equipment.

[0020] Step 6. Turn on the hydraulic power: supply pressure to the system and equipment to ensure the normal operation of the hydraulic system.

[0021] Step 7. Run test support equipment: Ensure the normal operation of auxiliary equipment during the test.

[0022] Step 8. Setting and adjusting the test status: Set and optimize the test parameters and conditions according to the test requirements.

[0023] Step 9. Run the test analysis system: Start the test analysis system to prepare for the collection and analysis of test data.

[0024] Step 10. Operational control of the test: Manually or automatically control the test process to ensure that it is carried out as planned.

[0025] Step 11. Test execution: formally carry out automated testing.

[0026] Furthermore, the method further includes step 12: checking whether any accidents or problems occur during the test:

[0027] Furthermore, if there are any accidents or problems (Y): Secure the test site: Take measures to ensure the safety of on-site equipment and data to prevent further problems. Depressurize and shut down the hydraulic source: Stop the hydraulic system, relieve pressure, and prevent equipment damage. Shut down the power: Cut off power to the system and equipment to ensure safety. Analyze and resolve the problem: Investigate and analyze any accidents or problems that occur, and attempt to resolve them.

[0028] Furthermore, if the problem is solved (Y): return to the "Setting and Adjusting the Test Status" link and continue with the next test after adjustment.

[0029] Further, if not resolved (N): Continue to analyze and resolve the issue until it is resolved.

[0030] Furthermore, if there are no accidents or problems (N): determine whether the test is completed.

[0031] Furthermore, if not finished (N): return to the "setting and adjustment of test status" link and continue with the next test.

[0032] Furthermore, if the test is finished (Y), depressurize and shut down the hydraulic source: stop the hydraulic system and release the pressure. Turn off the power: disconnect all related power sources. Clean up the test site: organize the equipment, clean the site, and complete the finishing work. Test End: the entire automated test process is officially completed.

[0033] Furthermore, the bird integrated test bench is mainly composed of five parts: test bench, test management system, test acquisition system, fault simulation system, and system tester. The iron bird test bench is the equipment and facility for ground simulation testing of aircraft systems, used to complete ground simulation testing of the entire system. The test management system is the centralized control and management of the test environment, including test process management, test equipment management, test data management, and test monitoring. The test acquisition system is mainly used for the acquisition, conditioning, display, storage, and processing of signals from various systems on the iron bird integrated test bench. The system tester and fault simulation system mainly realize the testing of the functional performance of the onboard system.

[0034] The beneficial effects of this application are:

[0035] This invention proposes an automated testing technology based on a large-scale iron bird integrated test bench. This technology addresses the low efficiency and high manual dependency in verifying complex flight control systems in aircraft ground testing, achieving a significant technological breakthrough through systematic integration and process automation. Compared to traditional manual testing methods, this invention offers the following key advantages:

[0036] 1. Efficiency and cost optimization

[0037] Traditional testing requires extensive manual operation of equipment and coordination of multi-system interactions, resulting in long testing cycles and high costs. This invention uses a test management system to centrally control airborne systems such as hydraulics, flight control, and landing gear. It utilizes a graphical script editor (drag-and-drop instruction modules and parameter settings) and a visual actuator to convert test steps into automated scripts, enabling fully automated testing without human intervention. This significantly shortens the testing cycle, reduces labor costs, and mitigates the risk of human error.

[0038] 2. Improved flexibility and scalability

[0039] The platform supports user-defined monitoring interfaces and data binding to meet diverse testing needs. Test cases can be adjusted manually in steps or executed automatically with one click, allowing for flexible configuration in complex scenarios. Furthermore, the automated platform features parallel testing capabilities, allowing mutually exclusive test processes to run simultaneously, significantly improving resource utilization.

[0040] 3. Data management and reliability enhancement

[0041] Efficient data exchange between test equipment and airborne systems is achieved through reflective memory networks and unified data space allocation protocols, ensuring the real-time and accuracy of signal transmission.

[0042] The automated integration and process management method of this invention is not only applicable to aircraft ground testing, but can also be expanded to other highly complex fields that require collaborative verification of multiple systems: rail transit: integrated testing of train control systems and braking systems, simulating the operating environment through automated scripts to accelerate safety verification; automotive electronics: joint testing of autonomous driving systems and on-board electronic equipment, leveraging parallel testing capabilities to improve verification efficiency.

[0043] In summary, the present invention solves the pain points of low efficiency, high cost and lack of flexibility of traditional testing methods through technological innovation. Its universal design concept and modular architecture provide a reusable solution for cross-domain complex system testing, and has broad application prospects and market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is the schematic diagram of the automated test process;

[0045] Figure 2 It is the allocation map of parameter data space;

[0046] Figure 3 This is the flow chart of the automated test;

[0047] Figure 4 Edit diagrams for automation scripts;

[0048] Figure 5 Configure content maps for experimental items;

[0049] Figure 6 Configure graphs for data logging;

[0050] Figure 7 It is the execution graph of the automation script;

[0051] Figure 8 Download the graph for the test results. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the implementation of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the embodiments of the present invention. In the examples, the same or similar reference numerals throughout represent the same or similar originals or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of the embodiments. The embodiments described below by reference are illustrative and intended to be used to explain the present invention, and should not be understood as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The following is a detailed description in conjunction with the embodiments of the present invention.

[0053] Automated testing based on the iron bird test bench is achieved by converting the original manual test process into an automated test process on the iron bird test bench, thereby improving test efficiency, reducing costs, and increasing test progress and reliability.

[0054] The automated test function based on the iron bird test bench relies on the control instruction network and reflective memory network, and realizes a graphical script editor and a visual script executor. The script editor can edit the automated test script by dragging the instruction module, adding connections, and setting parameters to combine the test steps. The script executor completes the parsing and execution of the automated test script through visual script execution process and graphical data monitoring. Through the cooperation of the script editor and the script executor, multi-system cross-linked automated testing is finally realized. See the automated test process for details. Figure 1 As shown:

[0055] This patent mainly analyzes and explains how to convert a test task from manual execution to script automated execution based on the test outline of "Hydraulic Source System Pressure Supply to Flaps Test Outline", mainly by analyzing the test outline, confirming the resources that the test depends on, and classifying the resources into: static configuration and dynamic loading. Whether there is a relevant control protocol to support dynamic loading of resources, and then decomposing the test steps in the test outline into executable control instructions, and comparing them with the instructions in the existing control instruction protocol to determine whether they meet the test requirements, and then converting the control instructions and parameters corresponding to the test steps into automated scripts with business logic through the test management system, and compiling and executing the scripts, monitoring the execution process, judging the return results of individual execution steps, and automatically recording the signals of interest, and finally completing the automated test.

[0056] The basis and condition for the smooth implementation of automation tests is to achieve reliable signal transmission and correct data exchange between airborne systems such as the flight control system, hydraulic system, and landing gear control system.

[0057] A unified interface protocol for other systems or test equipment is developed through the test management system. Requirements and definitions are set for signal transmission and data exchange in four areas: equipment control, setting and display of test status parameters, measurement parameter and data exchange, and data exchange between test support equipment and onboard systems.

[0058] First, before the test is carried out, the initial state adjustment and initial parameter setting are carried out. According to the actual needs of the test, the test state setting and monitoring display parameter format are defined, and the test state parameters are set and displayed.

[0059] Next, data exchange between ground support equipment (fly-by-wire flight control system, automatic flight control system, flap control system, landing gear system, and measurement and control system) and airborne systems is completed. The data block definition directly references the definition of signal transmission and data exchange between the flight control system and other airborne systems, such as avionics. This definition of signal transmission and data exchange between the flight control system and other airborne systems also meets and covers the signal transmission and data exchange between the flight control system and other non-avionics system simulation actuators.

[0060] The test supports signal transmission and data exchange between devices and the unified allocation of data space. Figure 2 shown.

[0061] Finally, the test results are to obtain a large number of measurement parameters. What parameters need to be obtained in the iron bird comprehensive test bench and how to transmit these parameters? To this end, the exchange of measurement parameters is regulated from the aspects of measurement parameters and their definitions, measurement parameter data blocks, definition of system measurement parameter data blocks, allocation of system measurement parameter data space, etc.

[0062] In the iron bird comprehensive test, the automated test execution process is implemented in three stages: pre-test preparation, test operation execution, and post-test inspection. Figure 3 It is a flow chart of the automated test.

[0063] 1. Complete the test equipment sending parameter settings through settings or block diagram configuration, and complete the control of the test equipment operation;

[0064] 2. Users can customize the monitoring interface and bind the test process data and customized controls by dragging and dropping to complete data monitoring;

[0065] 3. During the execution of the test case, the test case supports manual step-by-step setting and one-click automatic execution;

[0066] 4. The automated test platform supports parallel testing, supports two mutually exclusive test processes to be carried out simultaneously, supports test personnel to configure the test during the test process, and provides a dedicated test monitoring interface to complete the monitoring of test data.

[0067] Example

[0068] 7.1 Create a test item

[0069] According to the operation instructions of the test management system on the iron bird integrated test bench, the test items are created in combination with the test name, test purpose and test content extracted from the test outline.

[0070] 7.2 Configuring Test Items

[0071] The configuration of the test items mainly includes the following:

[0072] 1. Equipment: Select test equipment such as testers from the equipment management;

[0073] 2. Test piece: Select the test piece from the configuration;

[0074] 3. Test piece: Select the test piece from the configuration.

[0075] 4. Pre-test check: Select the pre-test check configuration corresponding to the test item from the pre-test check module.

[0076] 5. Personnel: Based on the analyzed test personnel information, select the corresponding test personnel from the user management;

[0077] 6. CVT: Select the CVT corresponding to the test item from the CVT management module.

[0078] 7. Test case: Edit the automated test script according to the automated test process operation summary table, such as Figure 4 As shown:

[0079] 8. Test plan: Select the edited test script to form an executable test plan

[0080] 9. To configure the content such as Figure 5 As shown:

[0081] 7.3 Data Collection Configuration

[0082] In the data recording module, configure the signal to be collected to form a configuration file, and set the recording mode of the automatic recording configuration file to "automatic", such as Figure 6 As shown:

[0083] 7.4 Execution of automated test cases

[0084] Select the corresponding test item in the executor module, open it, check the test plan to be executed, and click the start button to execute the automated test.

[0085] When the automated test is executed, the equipment status will be checked and the personnel on duty will be confirmed. After all the manual confirmations, the script execution phase will begin. Figure 7 As shown:

[0086] 7.5 Download of test result data

[0087] After the automation script is executed, you can view the corresponding test result record data in the test result management module, and view and download the data, such as Figure 8 As shown:

[0088] In addition, unless otherwise defined, the technical or scientific terms used in the description of this application should have the ordinary meanings understood by those of ordinary skill in the art to which this application belongs. The words "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer" used in the description of this application are only used to indicate relative directions or positional relationships, and do not imply that the device or component must have a specific orientation, be constructed, or operate in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. Therefore, they should not be understood as limitations on this application. The words "first," "second," "third," and similar terms used in the description of this application are used only for descriptive purposes to distinguish different components and should not be understood to indicate or imply relative importance. The words "one," "an," or "the" used in the description of this application should not be understood as absolute limitations on quantity, but should be understood as meaning the presence of at least one. The words "include" or "comprises" used in the description of this application mean that the element or object listed before the word includes the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects.

[0089] In addition, it should be noted that, unless otherwise clearly stipulated and limited, the words "install", "connect", "connect" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0090] The above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Within the spirit and principles of the present invention, any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention, any modification, equivalent replacement, improvement, etc. made should be included in the scope of protection of the present invention.

Claims

1. An automated test method based on a large iron bird comprehensive test bench, characterized in that: The steps include: Step 1. Test start: start the entire automated testing process; Step 2. Test status check: Conduct a comprehensive check on the test system status, supporting equipment status, test personnel attendance, site safety status, hydraulic energy status, and ground power status; Step 3. Determine whether the test preparation is complete: Step 4. If you are ready, do the following: Step 5. Turn on the power: supply power to the test system and related equipment; Step 6. Turn on the hydraulic energy: supply pressure to the system and equipment to ensure the normal operation of the hydraulic system; Step 7. Run the test support equipment: Ensure the normal operation of the auxiliary equipment during the test; Step 8. Setting and adjusting the test status: Setting and optimizing the test parameters and conditions according to the test requirements; Step 9. Run the test analysis system: Start the test analysis system to prepare for the collection and analysis of test data; Step 10. Experimental operational control: Manual or automatic control of the experimental process to ensure that it is carried out as planned; Step 11. Test execution: formally carry out automated testing.

2. The method according to claim 1, wherein In step 4, if not ready: loop back to the "test status check" link and recheck each status until the requirements are met.

3. The method according to claim 1, wherein It also includes step 12: checking whether any unexpected events or problems occurred during the test.

4. The method according to claim 3, wherein If there are any accidents or problems: Protect the test site: Take measures to ensure the safety of on-site equipment and data to prevent the problem from expanding; Unload pressure and shut down the hydraulic source: Stop the hydraulic system, release pressure, and prevent equipment damage; Turn off the power: Cut off the power supply to the system and equipment to ensure safety; Analyze and solve problems: Investigate and analyze any accidents or problems that occur and try to solve them.

5. The method according to claim 4, wherein If the problem is solved: Return to the "Test Status Setup and Adjustment" section and proceed to the next test after making adjustments.

6. The method according to claim 4, wherein If not resolved: Continue to analyze and resolve the issue until it is resolved.

7. The method according to claim 4, wherein If there are no accidents or problems: determine whether the test is over.

8. The method according to claim 7, wherein If not finished: Return to the "Test Status Setting and Adjustment" section and continue with the next test.

9. The method according to claim 7, wherein If finished; depressurize and turn off the hydraulic source: stop the hydraulic system and release the pressure; turn off the power: cut off all related power supplies; clean up the test site: organize the equipment, clean the site, and do the finishing work; the test is over: the entire automated testing process is officially completed.

10. The method according to claim 1, wherein The bird comprehensive test bench consists of five major parts: test bench, test management system, test acquisition system, fault simulation system, and system tester. The iron bird test bench is an equipment facility for ground simulation test of aircraft system, which is used to complete ground simulation test of the whole system. The test management system is a centralized control and management of the test environment, including test process management, test equipment management, test data management and test monitoring. The test acquisition system is used for the collection, conditioning, display, storage and processing of signals of various systems on the iron bird comprehensive test bench. The system tester and fault simulation system mainly realize the test of the functional performance of the onboard system.

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