Comprehensive test platform for aircraft flight control system

Abstract

The invention belongs to the technical field of aircraft flight control system testing, and discloses an aircraft flight control system comprehensive testing platform which comprises a hardware platform and a software platform. The hardware platform comprises a comprehensive control test system cabinet, a flight control subsystem 1 control cabinet, a flight control subsystem 2 control cabinet, a flight control subsystem 3 control cabinet, a flight control subsystem 4 control cabinet, a tested product installation operation table and a control operation table. Through the arrangement of the hardware platform and the software platform, a worker only needs to connect the tested piece with the resource boxes in the test cabinet one by one according to the cable identifier, and all test contents required by the tested piece can be completed through the guidance of a software test interface; the whole test process is completely carried out according to the existing test work order of an aircraft repair factory, so that the learning and operation pressure of users is greatly reduced, and the test efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft flight control system testing, and in particular relates to an aircraft flight control system comprehensive testing platform. Background Art

[0002] As the core and soul of modern aircraft, the flight control system plays a vital role. It is not only the key to ensure the safe flight of the aircraft, but also bears the important tasks of sensing the flight status, performing real-time precise control, and making key flight decisions. This highly integrated and complex system is usually composed of multiple flight control subsystems that work closely together.

[0003] At the same time, the flight control system does not exist in isolation. It is closely interconnected with multiple key systems such as the avionics system, electromechanical system, and hydraulic system, forming a complex and efficient avionics system network. The avionics system provides the flight control system with necessary atmospheric environment data, navigation information, and communication support; the electromechanical system is responsible for the aircraft's power supply, environmental control, and other tasks to ensure the stable operation of the flight control system and other airborne equipment; and the hydraulic system, as an important medium for power transmission, drives the aircraft's control surfaces and other actuators. This highly interconnected relationship makes the flight control system face many challenges during the design, integration, and testing process. Engineers need to fully consider the mutual influence and constraints between the various systems, and ensure the coordinated operation and efficient execution of the entire avionics system network through sophisticated design and rigorous testing.

[0004] At present, the test plan of the flight control system is usually composed of multiple test equipment. Each test equipment can only perform a separate test on a subsystem of the flight control system, and cannot realize the joint test of the flight control system. This plan not only has low testing efficiency and extremely high cost, but also cannot realize a one-time overall test of the flight control system. The authenticity and integrity of the test data are questioned, so it needs to be improved and optimized. Summary of the invention

[0005] The purpose of the present invention is to provide a comprehensive test platform for an aircraft flight control system to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an aircraft flight control system integrated test platform, the integrated test platform includes a hardware platform and a software platform, the hardware platform includes an integrated control test system cabinet, a flight control subsystem 1 control cabinet, a flight control subsystem 2 control cabinet, a flight control subsystem 3 control cabinet, a flight control subsystem 4 control cabinet, a tested product installation console and a control console, and the software platform includes integrated test software and a test resource self-check module;

[0007] The comprehensive control test system cabinet comprises a power sequencer, a comprehensive system test resource box, a 1553B bus interface box, a power monitoring box and a program-controlled direct current power supply.

[0008] Preferably, the control cabinet of the flight control subsystem 1 is composed of a flight control subsystem 1 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 2 is composed of a flight control subsystem 2 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 3 is composed of a flight control subsystem 3 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 4 is composed of a flight control subsystem 4 test resource box, a signal conditioning box and a signal transfer box.

[0009] Preferably, the tested product installation operation station is responsible for the installation of the tested product, and the control operation station is responsible for the human-machine interaction.

[0010] Preferably, the comprehensive test software is composed of six groups of sub-software, including comprehensive control software, ICD management software, flight control subsystem 1 test software, flight control subsystem 2 test software, flight control subsystem 3 test software, and flight control subsystem 4 test software.

[0011] Preferably, the six groups of sub-software implement the interaction of real-time simulation data through a predefined data format protocol, and the six groups of sub-software implement remote procedure calls through a local area network to achieve other interactions using DCOM component technology.

[0012] Preferably, the flight control subsystem 1 control cabinet, flight control subsystem 2 control cabinet, flight control subsystem 3 control cabinet and flight control subsystem 4 control cabinet in the hardware platform are connected to the flight control subsystem 1 test software, flight control subsystem 2 test software, flight control subsystem 3 test software and flight control subsystem 4 test software in the software test platform respectively through optical fibers.

[0013] Preferably, the signal transfer box receives signals from the device under test and generates simulation test resources.

[0014] Preferably, the workflow of the signal transfer box is:

[0015] Step 1, four groups of DUTs transmit 14 channels of discrete quantities, 5 channels of 429 signals, 5 channels of RVDT and 8 channels of analog quantities to the signal transfer box;

[0016] Step 2, the signal transfer box receives the signal from the device under test, processes the signal as needed, and then generates another three groups of device under test signals;

[0017] Step 3: Generate seven groups of sensor simulation signals and simulation test resources according to the seven groups of DUT signals.

[0018] Preferably, the test resource self-check module can perform self-check on bus signals, discrete quantity signals and analog quantity signals as well as internal equipment of the flight control system comprehensive test platform, including a programmable power supply, a multimeter, a signal generator and a frequency response analyzer.

[0019] The beneficial effects of the present invention are as follows:

[0020] The present invention classifies flight control subsystems and uses a modular design method to allocate test resources to different control cabinets. Through the settings of the hardware platform and the software platform, the staff only needs to connect the tested device and the resource box in the test cabinet one by one according to the cable identification, and can complete all the test contents required by the tested device through the guidance of the software test interface. The entire test process is completely carried out in accordance with the existing test work order of the aircraft repair factory, which greatly reduces the learning and operation pressure of the users and greatly improves the test efficiency. Compared with the traditional device, the equipment has the advantages of more test resources, high integration and simple operation, truly realizes generalization, serialization and combination, solves the problems of the existing test equipment with single dedicated function, large number and complicated test process, reduces the difficulty of flight control system testing and improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a test principle diagram of the comprehensive test platform of the present invention;

[0022] Figure 2 It is a schematic diagram of the comprehensive test platform equipment of the flight control system of the present invention;

[0023] Figure 3 This is the principle diagram of the signal transfer box of the present invention;

[0024] Figure 4 This is a schematic diagram of the test resource self-check module of the present invention;

[0025] Figure 5 This is the software platform architecture diagram of the present invention. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 5As shown, an embodiment of the present invention provides an aircraft flight control system integrated test platform, the integrated test platform includes a hardware platform and a software platform, the hardware platform includes an integrated control test system cabinet, a flight control subsystem 1 control cabinet, a flight control subsystem 2 control cabinet, a flight control subsystem 3 control cabinet, a flight control subsystem 4 control cabinet, a tested product installation console and a control console, and the software platform includes integrated test software and a test resource self-check module;

[0028] The comprehensive control test system cabinet comprises a power sequencer, a comprehensive system test resource box, a 1553B bus interface box, a power monitoring box and a program-controlled direct current power supply.

[0029] The present invention classifies flight control subsystems and uses a modular design method to allocate test resources to different control cabinets. Through the settings of the hardware platform and the software platform, the staff only needs to connect the tested device and the resource box in the test cabinet one by one according to the cable identification, and can complete all the test contents required by the tested device through the guidance of the software test interface. The entire test process is completely carried out in accordance with the existing test work order of the aircraft repair factory, which greatly reduces the learning and operation pressure of the users and greatly improves the test efficiency. Compared with the traditional device, the equipment has the advantages of more test resources, high integration and simple operation, truly realizes generalization, serialization and combination, solves the problems of the existing test equipment with single dedicated function, large number and complicated test process, reduces the difficulty of flight control system testing and improves the test efficiency.

[0030] Among them, the control cabinet of the flight control subsystem 1 is composed of a flight control subsystem 1 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 2 is composed of a flight control subsystem 2 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 3 is composed of a flight control subsystem 3 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 4 is composed of a flight control subsystem 4 test resource box, a signal conditioning box and a signal transfer box.

[0031] The control cabinet of flight control subsystem 1 includes all the test resources required for testing flight control subsystem 1. During testing, the device under test is connected to the signal transfer box and signal conditioning box of the control cabinet of flight control subsystem 1 through cables. Through the software interface, all functions and performance tests of flight control subsystem 1 can be realized. The control cabinet of flight control subsystem 2 includes all the test resources required for testing flight control subsystem 2. During testing, the device under test is connected to the signal transfer box and signal conditioning box of the control cabinet of flight control subsystem 2 through cables. Through the software interface, all functions and performance tests of flight control subsystem 2 can be realized. The control cabinet of flight control subsystem 3 includes all the test resources required for testing flight control subsystem 3. During testing, the device under test is connected to the signal transfer box and signal conditioning box of the control cabinet of flight control subsystem 3 through cables. Through the software interface, all functions and performance tests of flight control subsystem 3 can be realized; the control cabinet of flight control subsystem 4 includes all the test resources required for testing flight control subsystem 4. During testing, the device under test is connected to the signal transfer box and signal conditioning box of the control cabinet of flight control subsystem 4 through cables. Through the software interface, all functions and performance tests of flight control subsystem 4 can be realized.

[0032] The tested product installation operation console is responsible for the installation of the tested product, and the control operation console is responsible for the human-computer interaction.

[0033] Among them, the comprehensive test software is composed of six groups of sub-software, including comprehensive control software, ICD management software, flight control subsystem 1 test software, flight control subsystem 2 test software, flight control subsystem 3 test software, and flight control subsystem 4 test software.

[0034] The four test subsystems are equipped with abundant backup resources and backup interfaces to accommodate future software and hardware upgrades and enable compatibility testing of other types of flight control systems.

[0035] The six groups of sub-softwares realize the interaction of real-time simulation data through a predefined data format protocol, and the six groups of sub-softwares realize remote procedure calls through a local area network to realize other interactions using DCOM component technology.

[0036] The data during the test can be saved in the database. The database system is arranged in the integrated control cabinet and each subsystem cabinet, in which the integrated control cabinet acts as the server and the subsystem cabinet acts as the client. All historical data are stored in the server, thereby enhancing the integrity and security of the data.

[0037] Among them, the flight control subsystem 1 control cabinet, flight control subsystem 2 control cabinet, flight control subsystem 3 control cabinet and flight control subsystem 4 control cabinet in the hardware platform are connected with the flight control subsystem 1 test software, flight control subsystem 2 test software, flight control subsystem 3 test software and flight control subsystem 4 test software in the software test platform through optical fibers.

[0038] The signal transfer box receives the signal of the device under test and generates simulation test resources.

[0039] The working process of the signal transfer box is as follows:

[0040] Step 1, four groups of DUTs transmit 14 channels of discrete quantities, 5 channels of 429 signals, 5 channels of RVDT and 8 channels of analog quantities to the signal transfer box;

[0041] Step 2, the signal transfer box receives the signal from the device under test, and performs signal conversion, distribution, amplification, filtering and other processing as needed, and then generates another three groups of device under test signals;

[0042] Step 3: Generate seven groups of sensor simulation signals and simulation test resources according to the seven groups of DUT signals.

[0043] Among them, the test resource self-test module can perform self-test on bus signals (ARINC429, 1553B signals, etc.), discrete quantity signals and analog quantity signals, as well as internal equipment of the flight control system comprehensive test platform, including programmable power supply, multimeter, signal generator and frequency response analyzer.

[0044] By integrating the test resource self-check module into the flight control system comprehensive test platform, the automation level of the test process and the reliability of the test can be significantly improved. This self-check mechanism is not limited to the detection of test resources, but also goes deep into the health status check of the internal equipment of the platform, ensuring the high availability and accuracy of the test environment itself.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aircraft flight control system comprehensive test platform, characterized by: The comprehensive test platform includes a hardware platform and a software platform. The hardware platform includes a comprehensive control test system cabinet, a flight control subsystem 1 control cabinet, a flight control subsystem 2 control cabinet, a flight control subsystem 3 control cabinet, a flight control subsystem 4 control cabinet, a tested product installation console and a control console. The software platform includes comprehensive test software and a test resource self-test module. The comprehensive control test system cabinet comprises a power sequencer, a comprehensive system test resource box, a 1553B bus interface box, a power monitoring box and a program-controlled direct current power supply.

2. The aircraft flight control system comprehensive test platform according to claim 1, characterized in that: The control cabinet of the flight control subsystem 1 is composed of a flight control subsystem 1 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 2 is composed of a flight control subsystem 2 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 3 is composed of a flight control subsystem 3 test resource box, a signal conditioning box and a signal transfer box; the control cabinet of the flight control subsystem 4 is composed of a flight control subsystem 4 test resource box, a signal conditioning box and a signal transfer box.

3. The aircraft flight control system comprehensive test platform according to claim 1, characterized in that: The tested product installation operation station is responsible for the installation of the tested product, and the control operation station is responsible for the human-machine interaction.

4. The aircraft flight control system comprehensive test platform according to claim 1, characterized in that: The comprehensive test software is composed of six groups of sub-software, including comprehensive control software, ICD management software, flight control subsystem 1 test software, flight control subsystem 2 test software, flight control subsystem 3 test software, and flight control subsystem 4 test software.

5. The aircraft flight control system comprehensive test platform according to claim 4, characterized in that: The six groups of sub-softwares realize the interaction of real-time simulation data through a pre-defined data format protocol, and the six groups of sub-softwares realize remote procedure calls through a local area network, thereby completing other interactions using DCOM component technology.

6. The aircraft flight control system comprehensive test platform according to claim 1, characterized in that: The flight control subsystem 1 control cabinet, flight control subsystem 2 control cabinet, flight control subsystem 3 control cabinet and flight control subsystem 4 control cabinet in the hardware platform are connected to the flight control subsystem 1 test software, flight control subsystem 2 test software, flight control subsystem 3 test software and flight control subsystem 4 test software in the software test platform through optical fibers.

7. The aircraft flight control system comprehensive test platform according to claim 2, characterized in that: The signal transfer box receives the signal of the device under test and generates simulation test resources.

8. The aircraft flight control system comprehensive test platform according to claim 7, characterized in that: The working process of the signal transfer box is as follows: Step 1, four groups of DUTs transmit 14 channels of discrete quantities, 5 channels of 429 signals, 5 channels of RVDT and 8 channels of analog quantities to the signal transfer box; Step 2, the signal transfer box receives the signal from the device under test, processes the signal as needed, and then generates another three groups of device under test signals; Step 3: Generate seven groups of sensor simulation signals and simulation test resources according to the seven groups of DUT signals.

9. The aircraft flight control system comprehensive test platform according to claim 1, characterized in that: The test resource self-check module can perform self-check on bus signals, discrete quantity signals and analog quantity signals as well as internal equipment of the flight control system comprehensive test platform, including a programmable power supply, a multimeter, a signal generator and a frequency response analyzer.

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