General unmanned aerial vehicle avionics system batch test method, equipment and medium

Abstract

The invention particularly relates to a universal unmanned aerial vehicle avionics system batch test method, equipment and medium, and relates to the technical field of unmanned aerial vehicle test and maintenance, and the method comprises the steps that an upper computer system controls a programmable power supply to simulate battery output, and controls a signal test box to inject a test program into a tested avionics system; the signal test box collects response signals and corresponding framing communication of the tested avionics equipment, compares the response signals and the corresponding framing communication with expected values, and finally sends information packets of multiple sets of avionics equipment to the upper computer. According to the invention, the multi-interface architecture design of the signal test box realizes the synchronous batch test of avionics equipment, and changes the low-efficiency mode of the traditional single-set test; the signal test box is integrated with all types of interfaces, test tools do not need to be replaced for avionics equipment of different models, and the single-batch test period is greatly shortened in cooperation with automatic process control of an upper computer system.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) testing and maintenance technology, and in particular to a generalized method, equipment and medium for batch testing of UAV avionics systems. Background Technology

[0002] Avionics systems are a core component of unmanned aerial vehicles (UAVs), encompassing flight control, navigation, communication, payload, and power systems. They are highly complex and require stringent reliability standards. Comprehensive testing of the UAV's avionics systems is necessary before delivery, after maintenance, and during periodic inspections. Especially during mass production, electrical interfaces require various tests, including program injection, functional testing, performance testing, and environmental testing. Rapid and comprehensive testing of large quantities of equipment can significantly improve the speed and efficiency of UAV mass production.

[0003] Currently, testing of UAV electrical systems mostly involves manual software operation and observation using general-purpose instruments such as multimeters, oscilloscopes, and power supplies, or using customized test benches for specific UAV models. Manual testing is inefficient, error-prone, and requires highly skilled operators. Furthermore, dedicated test benches lack flexibility in multi-model development, as different UAV models require different testing equipment, leading to high R&D and maintenance costs. Moreover, test benches for specific UAV models can only test one set of avionics equipment; the cumbersome test environment setup and lengthy environmental tests are too inefficient for mass production, severely impacting product production and testing cycles.

[0004] Therefore, a generalized method, equipment, and medium for batch testing of UAV avionics systems are proposed to address the aforementioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a generalized method, equipment, and medium for batch testing of unmanned aerial vehicle (UAV) avionics systems in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A generalized method for batch testing of UAV avionics systems includes: Select the model of the drone under test and import the test configuration file through the human-computer interaction interface of the host computer system; The signal test box calls the corresponding interface resources according to the selected model and configuration file; The host computer system controls the programmable power supply to simulate battery output and controls the signal test box to inject test programs into the avionics system under test; The signal test box collects the response signals and corresponding frame communications of the avionics equipment under test, compares them with the expected values, and finally sends the information packets of multiple avionics equipment to the host computer. The test package content is parsed to generate graphical test information and a test report.

[0007] Preferably, the host computer system is used to receive user instructions, configure software, display test information graphically, and record test logs in the background.

[0008] Preferably, the signal test box is used to collect various interface signals and output test excitation signals of the avionics system under test for testing.

[0009] Preferably, the signal test box is designed with an ARM+FPGA+interface architecture, covering all interfaces used in avionics system testing.

[0010] Preferably, the signal test box integrates a signal conditioning circuit, an isolation circuit, and a fuse device for signal level conversion, isolation, and overcurrent protection.

[0011] Preferably, the signal test box is designed with a data caching module for caching data during real-time testing.

[0012] Preferably, the programmable power supply is used to simulate the output characteristics of a drone battery, including voltage, current, and internal resistance; The electronic load unit is used to simulate the electrical load of the UAV under different operating conditions, including power consumption during flight, long-endurance flight, communication, and mission payload.

[0013] An electronic device includes: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the test method as described in any one of claims 1 to 7.

[0014] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the test method as described in any one of claims 1 to 7.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. This invention enables synchronous batch testing of avionics equipment through the multi-interface architecture design of the signal test box, changing the inefficient mode of traditional single-set testing; the signal test box integrates all types of interfaces, eliminating the need to change test fixtures for different models of avionics equipment, and with the automated process control of the host computer system, the single batch test cycle is greatly shortened.

[0016] 2. This invention effectively achieves level conversion, anti-interference, and overcurrent protection through the built-in signal conditioning, isolation circuits, and fuse devices in the signal test box. Combined with a data buffer design to prevent frame loss, it ensures the accuracy and reliability of the acquired response signals and communication data, providing a solid basis for test result comparison. The graphical display and log recording functions of the host computer facilitate rapid location of test anomalies and problem tracing. Attached Figure Description

[0017] Further details, features, and advantages of this application are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a flowchart of the method of the present invention; Figure 2 This is a system structure block diagram of the electrical system testing equipment of the present invention; Figure 3 This is a schematic diagram of the universal signal testing chassis of the present invention. Detailed Implementation

[0018] Several embodiments of this application will now be described in more detail with reference to the accompanying drawings to enable those skilled in the art to implement this application. This application may be embodied in many different forms and for various purposes and should not be limited to the embodiments set forth herein. These embodiments are provided to make this application thorough and complete, and to fully convey the scope of this application to those skilled in the art. The embodiments described do not limit this application.

[0019] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It will be further understood that terms such as those defined in commonly used dictionaries shall be interpreted as having a meaning consistent with their meaning in the relevant field and / or the context of this specification, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0020] Example 1 Its specific implementation method is combined with the appendix Figure 1 To be continued Figure 3 Please provide a detailed explanation.

[0021] Appendix Figure 1 The flowchart of a generalized batch testing method, equipment and medium for UAV avionics systems provided in this embodiment of the invention shows the complete steps from selecting the UAV model under test and importing the test configuration file to parsing the package content to form graphical test information and generate a test report.

[0022] In this embodiment, it includes: Select the model of the drone under test and import the test configuration file through the human-computer interaction interface of the host computer system; The host computer system is used to receive user commands, configure the software, display the test information graphically, and record test logs in the background. The signal test box calls the corresponding interface resources according to the selected model and configuration file; The signal test box is used to collect various interface signals and output test excitation signals of the avionics system under test. This test equipment has a large number of electrical interfaces and can connect to 8 sets of avionics equipment at the same time for batch testing.

[0023] The signal test box is designed with an ARM+FPGA+interface architecture and has a large number of interfaces such as DI, DO, AI, AO, PO, RS422, RS232, CAN, and ETH, which can cover all the interfaces used in avionics system testing and can simultaneously test 8 sets of avionics equipment in batches.

[0024] The signal test box integrates signal conditioning circuits, isolation circuits, and fuses for signal level conversion, isolation, and overcurrent protection.

[0025] The signal test box is designed with a data buffer module to buffer a large amount of data during real-time testing, so as to meet the requirement that no frames are lost when recording data for 5ms during batch testing.

[0026] The host computer system controls the programmable power supply to simulate battery output (battery voltage decay curve) and controls the signal test box to inject test programs into the avionics system under test; Programmable power supply, used to simulate the output characteristics of drone batteries, including voltage, current and internal resistance; The electronic load unit is used to simulate the electrical load of the UAV under different operating conditions, including power consumption during flight, long-endurance flight, communication, and mission payload.

[0027] The signal test box collects the response signals and corresponding frame communications of the avionics equipment under test, compares them with the expected values, and finally sends the information packets of multiple avionics equipment to the host computer. The host computer system parses the package content, generates graphical test information, and produces a test report.

[0028] This application also provides an electronic device, including: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the following... Figure 1 To be continued Figure 3 The steps of the test method shown are as follows.

[0029] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the following... Figure 1 To be continued Figure 3 The steps of the test method shown are as follows.

[0030] The above formulas are all dimensionless calculations. The formulas are derived from software simulations based on a large amount of collected data to obtain the most recent real-world results. The preset parameters in the formulas are set by those skilled in the art according to the actual situation.

[0031] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0032] It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely for distinguishing one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0033] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0034] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0035] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0036] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0037] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0039] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for batch testing of a general-purpose unmanned aerial vehicle (UAV) avionics system, characterized in that, include: Select the model of the drone under test and import the test configuration file through the human-computer interaction interface of the host computer system; The signal test box calls the corresponding interface resources according to the selected model and configuration file; The host computer system controls the programmable power supply to simulate battery output and controls the signal test box to inject test programs into the avionics system under test; The signal test box collects the response signals and corresponding frame communications of the avionics equipment under test, compares them with the expected values, and finally sends the information packets of multiple avionics equipment to the host computer. The test package content is parsed to generate graphical test information and a test report.

2. The method for batch testing of a general-purpose UAV avionics system according to claim 1, characterized in that, The host computer system is used to receive user commands, configure the software, display the test information graphically, and record test logs in the background.

3. The method for batch testing of a general-purpose UAV avionics system according to claim 1, characterized in that, The signal test box is used to collect various interface signals and output test excitation signals of the avionics system under test for testing.

4. The method for batch testing of a general-purpose UAV avionics system according to claim 3, characterized in that, The signal test box adopts an ARM+FPGA+interface architecture, covering all interfaces used in avionics system testing.

5. The method for batch testing of a generalized UAV avionics system according to claim 4, characterized in that, The signal test box integrates signal conditioning circuits, isolation circuits, and fuses for signal level conversion, isolation, and overcurrent protection.

6. The method for batch testing of a general-purpose UAV avionics system according to claim 5, characterized in that, The signal test box is designed with a data caching module to cache data during real-time testing.

7. The method for batch testing of a general-purpose UAV avionics system according to claim 1, characterized in that, Programmable power supply, used to simulate the output characteristics of drone batteries, including voltage, current and internal resistance; The electronic load unit is used to simulate the electrical load of the UAV under different operating conditions, including power consumption during flight, long-endurance flight, communication, and mission payload.

8. An electronic device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the test method as described in any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the test method as described in any one of claims 1 to 7.

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