A teaching and training system for borescope inspection systems of civil aircraft engines

Abstract

This invention belongs to the field of aviation maintenance training technology and discloses a teaching and training system suitable for borescope inspection systems of civil aircraft engines. The system includes: a handheld borescope virtual simulation unit, a civil aircraft engine borescope training cabin and virtual simulation main unit cabinet, and a virtual scene and teaching display unit. Through the collaborative construction of these three units, a virtual-real integrated teaching and training system is established, completely recreating the entire process environment of non-destructive borescope inspection of civil aircraft engines. It can simulate various engine models and borescope equipment adaptation scenarios, reproduce typical faults and damages in engine internal components such as blades and turbine disks, and support operating condition simulations under different environmental factors. This allows trainees to conduct repeated practical training without relying on real engines, effectively reducing training costs and safety risks, comprehensively improving trainees' operational proficiency and fault handling capabilities in complex scenarios, and overcoming the core shortcomings of traditional training scenarios, such as limited scenarios and difficulty in reproducing faults.

Description

Technical Field

[0001] This invention belongs to the field of aviation maintenance training technology, specifically a teaching and training system applicable to the borescope inspection system of civil aircraft engines. Background Technology

[0002] Currently, civil aviation aircraft engine borescope inspection skills training mainly adopts two methods: textbook-based theoretical teaching and hands-on training with physical equipment. Textbook-based teaching can only complete basic theoretical and working principle training, but cannot achieve practical training. Hands-on training with physical equipment is limited by the high price of equipment, the limited number of fault simulation modules, and the professionalism of teaching staff, making it impossible to carry out large-scale, professional teaching, and also impossible to conduct scientific monitoring and closed-loop teaching for trainees, which easily leads to the problem of disconnect between theory and practice.

[0003] Existing purely virtual simulation teaching lacks the tactile experience of hands-on operation, failing to cultivate trainees' practical skills. Purely physical teaching is costly, offers limited scenarios, and cannot simulate multiple engine models and various damage and faults, making it difficult to meet the large-scale, personalized, and full-process training needs of civil aviation maintenance. Therefore, there is an urgent need to research a teaching and training system for borescope inspection of civil aircraft engines that combines virtual simulation teaching with hands-on operation training. This system would address the problems of the existing training methods, such as the disconnect between theory and practice, limited training scenarios, and difficulty in conducting large-scale teaching, thereby meeting the training needs of the civil aviation maintenance field for borescope inspection skills personnel. Summary of the Invention

[0004] The purpose of this invention is to provide a teaching and training system suitable for borescope inspection systems of civil aircraft engines, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a teaching and training system suitable for borescope inspection systems of civil aircraft engines, comprising: The handheld borescope virtual simulation unit is used to simulate the appearance of the handheld borescope in a 1:1 scale, collect the operation action signals of the trainee and upload them in real time, receive the virtual simulation detection screen and synchronously display the real-time screen of the borescope inside the engine, and realize the handheld operation simulation interaction. The civil aviation engine borescope training cabin and virtual simulation host cabinet are used to provide a 1:1 physical simulation environment of the civil aviation engine borescope inspection port, collect the physical motion signals of the probe extension and rotation, run customized borescope virtual training teaching software, process operation data, generate virtual simulation scenarios, and complete teaching management and assessment. The virtual scene and teaching display unit is used to receive virtual simulation images and display them synchronously. It presents the spatial relationship between the virtual probe and the engine in a 3D visualization form, and provides teaching guidance display in the form of text, animation and video. The handheld borescope virtual simulation unit, virtual scene and teaching display unit are all connected to the civil aviation engine borescope training cabin and virtual simulation host cabinet, forming a virtual and real interactive borescope teaching and training system.

[0006] Preferably, the handheld borescope virtual simulation unit has a built-in embedded detection unit that can collect five-dimensional actions of the directional keys (up, down, left, right, and press) and operation signals of the seven function keys, and upload the signals to the virtual simulation host cabinet in real time via a USB data cable.

[0007] Preferably, the handheld borescope virtual simulation unit is equipped with a 5.6-inch LCD screen and a display driver unit, and receives screen data from the virtual simulation host cabinet via an HDMI data cable, dynamically displaying the borescope camera detection screen that is linked with the trainee's operation.

[0008] Preferably, the civil aviation engine borescope training cabin has a built-in 1:1 engine simulation borescope cabin with 5 independent borescope inspection ports, and each inspection port is equipped with a physical probe inspection system.

[0009] Preferably, the physical probe inspection system uses pulleys, wheels, and encoders to convert the probe's telescopic displacement signal and rotation angle signal into digital signals, which are then uploaded to the simulation computer in the virtual simulation host cabinet via a bus.

[0010] Preferably, the virtual simulation host cabinet has a built-in high-performance simulation computer, equipped with an I9 processor, 32G memory, 1TB solid-state drive, 16G dedicated graphics card, Windows operating system, and running customized civil aviation engine borescope virtual training software.

[0011] Preferably, the customized virtual training software includes a virtual simulation software data processing unit, a borescope training syllabus module, and a trainee historical data management and analysis module.

[0012] Preferably, the customized virtual training software also includes an intelligent training content generation module, which combines the Kongtan training syllabus with the student's historical operation data to intelligently generate personalized training and assessment content.

[0013] Preferably, the virtual scene and teaching display unit uses a 75-inch monitor, which synchronously projects the display screen of the handheld borescope virtual simulation unit through an HDMI interface.

[0014] Preferably, the virtual simulation software data processing unit is used to read the actual operations of the trainees and generate corresponding response feedback based on the trainees; the response feedback includes the virtual screen of the handheld borehole probe and the virtual screen of the teaching and training, so as to form a closed-loop feedback with the trainees; the borehole probe training syllabus module includes an updatable and upgradable training question bank and practical training syllabus; the trainees' historical data management and analysis module is used to record the trainees' operation records and realize the automatic evaluation of theoretical and practical performance, archiving of teaching data and analysis of training effects.

[0015] The beneficial effects of this invention are as follows: 1. This system constructs a virtual-real integrated teaching and training system through three major units, which fully restores the entire process environment of non-destructive borehole inspection of civil aviation engines. It can simulate the matching scenarios of various engine models and borehole inspection equipment, reproduce typical fault damage of internal engine parts such as blades and turbine disks, and support the simulation of working conditions under different environmental factors. This allows students to carry out repeated hands-on training without relying on real engines, effectively reducing training costs and safety risks, and comprehensively improving students' operational proficiency and fault handling capabilities in complex scenarios. It makes up for the core defects of traditional training scenarios being single and faults being difficult to reproduce.

[0016] 2. This system introduces the concept of intelligent assisted teaching and adopts an electronic teaching-style training model, which can adapt to different training needs and carry out personalized training. At the same time, the system can record the training process data of trainees throughout the entire process, forming a complete learning trajectory archive, supporting teaching management personnel to carry out process analysis and effect evaluation. It solves the problems of single training levels and difficulty in tracing the teaching process in traditional training, improves the pertinence, standardization and management efficiency of teaching, and realizes closed-loop teaching management of "teaching according to aptitude".

[0017] 3. This system uses a 1:1 replica of typical handheld borescope equipment and engine borescope inspection ports, highly restoring the feel and spatial layout of the actual equipment. The equipment's built-in 5.6-inch LCD screen and external viewing screen can simultaneously simulate the monitoring screen of the borescope probe, and can also accurately display typical damage such as burning, curling, breakage, and cracks in parts such as internal engine blades and turbine disks. This allows trainees to become familiar with the operation procedures and typical functions of different equipment in a virtual-real environment, balancing the realism of operation with the richness of training scenarios, and solving the pain points of pure virtual training lacking tactile feedback and pure physical training being costly.

[0018] 4. This system has a complete set of standardized teaching resources, including teaching PPTs, theoretical exam questions, practical work cards, and original maintenance manuals for multiple machine models, constructing an integrated teaching system of theory and practice. The system supports online theoretical exams, and can automatically score, count results, and archive data, replacing the traditional manual assessment mode, improving the objectivity and efficiency of the assessment, while realizing unified management and on-demand retrieval of teaching resources, facilitating students' self-study and the traceability of the teaching process, and standardizing the teaching management process of borehole probing skills training. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the system of the present invention; Figure 2 This is a virtual simulation unit architecture diagram of the handheld borescope of the present invention; Figure 3 This is a diagram of the architecture of the civil aviation engine borescope training cabin and virtual simulation main unit cabinet of the present invention; Figure 4 This is a schematic diagram illustrating the overall composition and data interaction of the system of the present invention; Figure 5 This is a diagram of the human-computer interaction training system architecture of the present invention; Figure 6 This is a flowchart of the virtual simulation computer data processing of the present invention; Figure 7 This is a flowchart illustrating the overall training data flow of the system of the present invention; Figure 8 This is a schematic diagram of the virtual simulation training process and assessment feedback closed loop of the system of the present invention; Figure 9 This is a schematic diagram of the dual-view structure of the virtual simulation unit of the handheld borehole probe of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 9 As shown, this embodiment of the invention provides a teaching and training system suitable for borescope inspection systems of civil aircraft engines, comprising: The handheld borescope virtual simulation unit is used to simulate the appearance of the handheld borescope in a 1:1 scale, collect the operation action signals of the trainee and upload them in real time, receive the virtual simulation detection screen and synchronously display the real-time screen of the borescope inside the engine, and realize the handheld operation simulation interaction. The civil aviation engine borescope training cabin and virtual simulation host cabinet are used to provide a 1:1 physical simulation environment of the civil aviation engine borescope inspection port, collect the physical motion signals of the probe extension and rotation, run customized borescope virtual training teaching software, process operation data, generate virtual simulation scenarios, and complete teaching management and assessment. The virtual scene and teaching display unit is used to receive virtual simulation images and display them synchronously. It presents the spatial relationship between the virtual probe and the engine in a 3D visualization form, and provides teaching guidance display in the form of text, animation and video. The handheld borescope virtual simulation unit, virtual scene and teaching display unit are all connected to the civil aviation engine borescope training cabin and virtual simulation host cabinet, forming a virtual and real interactive borescope teaching and training system.

[0022] By constructing a teaching and training system that combines virtual and real elements through three collaborative units, the system not only relies on physical simulation units to reproduce the real operating feel, but also uses virtual units to simulate various engine borehole inspection scenarios and fault damage. This breaks through the limitations of traditional training that relies on real machines, is costly, and has difficulty in reproducing faults. The 1:1 physical simulation combined with the visualization of virtual scenarios balances the realism of practical operation with the flexibility of training. It can realize the simultaneous development of individual independent training and group teaching, forming a closed loop of operation interaction throughout the process. This not only improves students' operational proficiency and fault handling capabilities, but also simplifies the teaching management process, significantly reducing equipment wear and tear and teaching costs in civil aviation borehole inspection training, and adapting to the needs of large-scale and standardized skills training.

[0023] The handheld borescope virtual simulation unit has a built-in embedded detection unit that can collect five-dimensional actions of the directional keys (up, down, left, right, and press) and operation signals of the seven function keys, and upload the signals to the virtual simulation host cabinet in real time via a USB data cable.

[0024] The embedded detection unit can accurately collect five-dimensional directional key movements and seven function key operation signals, completely reproducing the real operation logic of the handheld borescope without missing any operation information. It can upload signals in real time via USB data cable, ensuring low latency and high stability of operation data transmission. This allows the virtual simulation system to respond quickly to the trainee's operation and achieve synchronous linkage between physical operation and virtual scene. This not only ensures the authenticity of the training operation, but also provides accurate raw data for subsequent operation data recording and evaluation analysis, improving the real-time performance and accuracy of training feedback.

[0025] The handheld borescope virtual simulation unit is equipped with a 5.6-inch LCD screen and a display driver unit. It receives screen data from the virtual simulation host cabinet via an HDMI data cable and dynamically displays the borescope camera detection screen that is linked with the trainee's operation.

[0026] Equipped with a 5.6-inch LCD screen and drive unit, it receives screen data via HDMI and displays it dynamically, highly replicating the display specifications and visual effects of a real borescope, providing trainees with an immersive operating experience. The screen is synchronized with the trainee's operation in real time, intuitively presenting the internal inspection perspective of the engine, helping trainees quickly familiarize themselves with the borescope screen recognition logic, conforming to the operating habits of a real machine, avoiding the visual disconnect problem of purely virtual training, while the small screen also ensures operational privacy, helping trainees focus on practical training and improving operational learning efficiency.

[0027] The civil aviation engine borescope training cabin has a built-in 1:1 engine simulation borescope cabin with 5 independent borescope inspection ports, each of which is equipped with a physical probe inspection system.

[0028] The 1:1 engine simulation borehole chamber, equipped with 5 independent inspection ports, accurately replicates the spatial layout and operation points of real civil aviation engine borehole inspection, restoring the operating environment of real aircraft training. The multiple independent inspection ports can meet the training needs of borehole operation at different parts and angles, covering the mainstream borehole inspection conditions of engines, avoiding the limitations of training scenarios caused by a single inspection port, allowing trainees to fully master the operating specifications of each inspection port, improving practical adaptability and scenario response capabilities, and conforming to the practical standards of civil aviation maintenance training.

[0029] The physical probe inspection system uses pulleys, wheels, and encoders to convert the probe's telescopic displacement and rotation angle signals into digital signals, which are then uploaded to the simulation computer in the virtual simulation host cabinet via a bus.

[0030] By using pulleys, wheels, and encoders, the physical movements of the probe's extension, retraction, and rotation are converted into digital signals. This allows for the quantification of the probe's displacement and angle parameters, resulting in high signal conversion accuracy and minimal error. The digital signals are stably uploaded to the simulation computer via a bus, achieving precise matching between the physical operation and the virtual probe's movement. This ensures both the fidelity of the virtual simulation and the complete recording of the trainee's operational parameters, providing a quantitative basis for operational assessment and skills evaluation, and solving the problem of difficulty in quantifying and assessing traditional practical training operations.

[0031] The virtual simulation host cabinet is equipped with a high-performance simulation computer, featuring an i9 processor, 32GB of RAM, a 1TB solid-state drive, a dedicated graphics card with 16GB of video memory, a Windows operating system, and customized virtual training software for civil aviation engine borescope exploration.

[0032] Equipped with an i9 processor, large memory, and a dedicated graphics card with high video memory, this high-performance computer can support 3D virtual engine model rendering, multi-scenario fault simulation, and massive operation data processing, ensuring smooth operation of customized teaching software without lag or delay. Its large-capacity solid-state drive can store teaching resources and student data from multiple models, and its strong compatibility with Windows systems ensures stable software operation. It can simultaneously meet multiple functional requirements such as virtual simulation, teaching management, and data evaluation, providing reliable hardware support for the entire training system.

[0033] The customized virtual training software includes a virtual simulation software data processing unit, a borehole probing training syllabus module, and a trainee historical data management and analysis module.

[0034] The virtual training software integrates data processing, training syllabus, and data management and analysis modules to build a complete teaching system of "operation interaction - teaching implementation - data control". The data processing unit ensures real-time operation feedback, the training syllabus module standardizes the teaching process, and the historical data module enables full traceability of the teaching process. The collaboration of these three modules makes teaching more standardized and systematic, replacing manual teaching control, reducing teaching errors, and simplifying the work of grade statistics and data archiving, thereby improving the management efficiency and standardization of borehole exploration training.

[0035] Among them, the customized virtual training and teaching software also has an intelligent training content generation module. This module combines the Kongtan training syllabus with the students' historical operation data to intelligently generate personalized training and assessment content.

[0036] The intelligent training content generation module combines the training syllabus with students' historical operation data to generate personalized training and assessment content, enabling tiered teaching tailored to individual needs. It customizes training tasks to address students' operational weaknesses, avoiding the inefficiency of homogeneous training and precisely filling skill gaps. At the same time, it automatically matches the assessment difficulty with the training content, improving the relevance and effectiveness of the training. This helps students gradually improve their borehole probing skills, shortens the skill mastery period, and optimizes the overall training effect.

[0037] The virtual scene and teaching display unit uses a 75-inch monitor, which synchronously projects the display screen of the handheld borescope virtual simulation unit through the HDMI interface.

[0038] The system uses a 75-inch large screen to synchronously project the inspection image of the handheld borescope via HDMI, which can visualize the operation perspective of the trainees and meet the needs of group teaching and demonstration teaching. The large screen clearly presents the internal structure of the engine and the position of the probe, which is convenient for instructors to provide real-time guidance and error correction, and also facilitates observation and learning by other trainees. It breaks through the teaching limitations of single-person small screen operation, enhances the interactivity and intuitiveness of teaching, improves the teaching quality of group training, and is suitable for the group-based teaching model of civil aviation training.

[0039] The virtual simulation software data processing unit is used to read the actual operations of trainees and generate corresponding response feedback based on the trainees' actions. The response feedback includes virtual images of the handheld borehole probe equipment and virtual images of the teaching and training sessions, which can form a closed-loop feedback with the trainees. The borehole probe training syllabus module includes an updatable and upgradable training question bank and practical training syllabus. The trainee historical data management and analysis module is used to record trainees' operation records and realize automatic evaluation of theoretical and practical performance, archiving of teaching data, and analysis of training effectiveness.

[0040] The data processing unit forms a closed-loop feedback loop for operations, the updatable syllabus module adapts to the latest training standards, and the data management module enables automatic evaluation and archiving. The three work together to form a closed loop for practical training. This ensures real-time and accurate operational feedback, updates teaching content to align with industry standards, and automatically completes grade calculation, data retention, and effect analysis. It eliminates the tedious work of manual evaluation and recording, improves the objectivity and fairness of teaching evaluation, and realizes intelligent and standardized management of the entire process of borehole exploration practical training.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do 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 process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A teaching and training system suitable for borescope inspection systems of civil aircraft engines, characterized in that, include: The handheld borescope virtual simulation unit is used to simulate the appearance of the handheld borescope in a 1:1 scale, collect the operation action signals of the trainee and upload them in real time, receive the virtual simulation detection screen and synchronously display the real-time screen of the borescope inside the engine, and realize the handheld operation simulation interaction. The civil aviation engine borescope training cabin and virtual simulation host cabinet are used to provide a 1:1 physical simulation environment of the civil aviation engine borescope inspection port, collect the physical motion signals of the probe extension and rotation, run customized borescope virtual training teaching software, process operation data, generate virtual simulation scenarios, and complete teaching management and assessment. The virtual scene and teaching display unit is used to receive virtual simulation images and display them synchronously. It presents the spatial relationship between the virtual probe and the engine in a 3D visualization form, and provides teaching guidance display in the form of text, animation and video. The handheld borescope virtual simulation unit, virtual scene and teaching display unit are all connected to the civil aviation engine borescope training cabin and virtual simulation host cabinet, forming a virtual and real interactive borescope teaching and training system.

2. The teaching and training system for a borescope inspection system for civil aircraft engines according to claim 1, characterized in that: The handheld borescope virtual simulation unit has a built-in embedded detection unit that can collect five-dimensional actions of the directional keys (up, down, left, right, and press) and operation signals of the seven function keys, and upload the signals to the virtual simulation host cabinet in real time via a USB data cable.

3. The teaching and training system for a borescope inspection system for civil aircraft engines according to claim 1, characterized in that: The handheld borescope virtual simulation unit is equipped with a 5.6-inch LCD screen and a display driver unit. It receives screen data from the virtual simulation host cabinet via an HDMI data cable and dynamically displays the borescope camera detection screen that is linked to the trainee's operation.

4. The teaching and training system for a borescope inspection system for civil aircraft engines according to claim 1, characterized in that: The civil aviation engine borescope training cabin has a built-in 1:1 engine simulation borescope cabin with 5 independent borescope inspection ports, each of which is equipped with a physical probe inspection system.

5. A teaching and training system for a borescope inspection system for civil aircraft engines according to claim 4, characterized in that: The physical probe inspection system uses pulleys, wheels, and encoders to convert the probe's telescopic displacement and rotation angle signals into digital signals, which are then uploaded to the simulation computer in the virtual simulation host cabinet via a bus.

6. The teaching and training system for a borescope inspection system for civil aircraft engines according to claim 1, characterized in that: The virtual simulation host cabinet has a built-in high-performance simulation computer, equipped with an I9 processor, 32GB of memory, a 1TB solid-state drive, a dedicated graphics card with 16GB of video memory, and runs a Windows operating system and customized virtual training software for civil aviation engine borescope exploration.

7. A teaching and training system for a borescope inspection system for civil aircraft engines according to claim 6, characterized in that: The customized virtual training software includes a virtual simulation software data processing unit, a borehole probing training syllabus module, and a trainee historical data management and analysis module.

8. A teaching and training system for a borescope inspection system for civil aircraft engines according to claim 1, characterized in that: The customized virtual training software also includes an intelligent training content generation module, which combines the Kongtan training syllabus with students' historical operation data to intelligently generate personalized training and assessment content.

9. A teaching and training system for a borescope inspection system for civil aircraft engines according to claim 1, characterized in that: The virtual scene and teaching display unit uses a 75-inch monitor, which synchronously projects the display screen of the handheld borescope virtual simulation unit through an HDMI interface.

10. A teaching and training system for a borescope inspection system for civil aircraft engines according to claim 7, characterized in that: The virtual simulation software data processing unit is used to read the actual operations of the trainees and generate corresponding response feedback based on the trainees; the response feedback includes the virtual screen of the handheld borehole probe and the virtual screen of the teaching and training, so as to form a closed-loop feedback with the trainees; the borehole probe training syllabus module includes an updatable and upgradable training question bank and practical training syllabus; the trainee historical data management and analysis module is used to record the trainees' operation records and realize the automatic evaluation of theoretical and practical performance, archiving of teaching data and analysis of training effects.

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