Gas turbine teacher teaching method based on virtual reality

Abstract

The invention aims to provide a virtual reality-based gas turbine teacher teaching method. The virtual reality-based gas turbine teacher teaching method comprises the following steps of establishing a gas turbine subsystem functional characteristic database; establishing a system typical part maintenance process database; establishing a system three-dimensional model database; building a system virtual environment for the three-dimensional simulation model; compiling a gas turbine maintenance process flow, importing the gas turbine maintenance process flow into an established system environment, and integrating a gas turbine subsystem functional characteristic database into the system; a TCP / IP Socket communication protocol framework is established, a data transceiving mechanism is established, a client side and a server side are developed, and a data coding and analyzing function is designed and developed; designing and developing a teacher teaching function module; designing and developing a human-computer interaction interface, and integrating the human-computer interaction interface into the system; and the teacher and the trainee simultaneously use the gas turbine teacher teaching system based on virtual reality for testing. The system is specially used for a gas turbine teaching scene, and meets the interaction demands of teachers and students in the explanation and demonstration process.

Description

Technical Field

[0001] The present invention relates to a gas turbine teaching method, in particular to a virtual gas turbine teaching method. Background Art

[0002] As a key component in the power system, the gas turbine has a high degree of system integration and automation, and the corresponding operation, maintenance, inspection and repair technology requirements are high. Before the trainees perform maintenance operations, the instructor should first elaborate on the functional characteristics of each subsystem of the gas turbine, and then demonstrate the correct maintenance steps and techniques to the trainees through actual operation demonstrations. In the process of using physical prototypes for training and explanation, since the subsystems are highly integrated into the gas turbine as a whole, it is difficult to disassemble and display them separately, which undoubtedly brings great challenges to the trainees' in-depth understanding of the actual operating status and unique functions of each subsystem. By using virtual reality technology to simulate the real operating status of the equipment in the real environment, the instructor can simultaneously carry out detailed explanations of the functions of each subsystem and vivid demonstrations of system maintenance skills to multiple trainees. It has a highly immersive experience and a lightweight virtual reality interactive operation environment, providing trainees with a full-factor, full-process virtual instructor teaching platform. After searching the existing technical literature, it was found that the patent "A virtual reality industrial simulation training system" applied by Chen Xuewen et al. integrates virtual reality technology and industrial simulation training into a method applicable to general industrial operations, which has achieved good results. However, this method is limited in its application in the field of gas turbines. It cannot meet the instructor's needs for teaching functions, and it also lacks detailed teaching materials for the functions of gas turbine subsystems. Summary of the invention

[0003] The purpose of the present invention is to provide a gas turbine instructor teaching method based on virtual reality, which can enable the instructor to intuitively show the functional characteristics of each subsystem of the gas turbine and the correct maintenance steps and skills to the trainees in a virtual environment.

[0004] The object of the present invention is achieved in that:

[0005] The present invention provides a gas turbine instructor teaching method based on virtual reality, which is characterized by comprising the following steps:

[0006] (1) Analyze the operating status and functional characteristics of each gas turbine subsystem and establish a gas turbine subsystem functional characteristics database;

[0007] (2) Analyze the maintenance process of typical parts of the gas turbine system and establish a maintenance process database of typical parts of the system;

[0008] (3) using 3D Max technology to classify and model typical parts, tools, workshops, and people of the gas turbine system in the maintenance process database of step (2); prefabricate and render three-dimensional models based on geometric size parameters and material performance parameters of the gas turbine, tools, workshops, and people, and establish a system three-dimensional model database;

[0009] (4) Using a virtual reality head mounted display device to build a system hardware environment, the three-dimensional simulation model prefabricated in step (3) is used to build a system virtual environment, and the three-dimensional model is further processed to enable it to have a human-computer interaction function;

[0010] (5) compiling a gas turbine maintenance process flow based on the maintenance process database in step (2), importing the compiled gas turbine maintenance process flow into the system environment constructed in step (4), performing logical control on the gas turbine virtual maintenance process, and integrating the gas turbine subsystem functional characteristic database in step (1) into the system;

[0011] (6) Based on step (5), the system builds a TCP / IP Socket communication protocol framework, establishes a data sending and receiving mechanism, develops the client and server, and designs and develops data encoding and parsing functions;

[0012] (7) Design and develop a teacher teaching function module, which includes developing a subsystem maintenance teaching function and a subsystem functional characteristic teaching function, and integrates it with the system data encoding and parsing function module in step (6), so that the system can realize real-time synchronization of multi-scenario data and a teacher teaching function;

[0013] (8) Design and develop a human-computer interaction interface, integrate it into the system in step (7), and build a gas turbine instructor teaching system based on virtual reality;

[0014] (9) The instructor and the trainees simultaneously use the virtual reality-based gas turbine instructor teaching system for testing.

[0015] The present invention may also include:

[0016] 1. Step (1) The steps of establishing a gas turbine subsystem functional characteristic database are:

[0017] Collect data on gas turbine subsystem functional characteristics, and clean, organize and classify the collected data;

[0018] Compile the knowledge graph of gas turbine subsystem functional characteristics and build the framework of gas turbine subsystem functional characteristics database;

[0019] Establish a general description method for the functional characteristics of gas turbine subsystems;

[0020] Establish a universal description language standard for gas turbine subsystem functional characteristics;

[0021] The general description method of gas turbine subsystem functional characteristics and the general description language of functional characteristics are integrated into the gas turbine subsystem functional characteristics database.

[0022] 2. Step (2) The steps for establishing a typical parts maintenance process database for the system are:

[0023] Collect typical parts maintenance process data, clean, organize and classify the collected data;

[0024] Write maintenance process plans for gas turbines and build the framework of the system maintenance process database;

[0025] Establish typical parts maintenance process method module;

[0026] Establish a general description language standard for typical parts maintenance processes;

[0027] The typical parts maintenance process data method module and the maintenance process general description language are integrated into the system maintenance process database.

[0028] 3. Developing the data encoding and parsing function in step (6) includes the following steps:

[0029] Prepare data coding and analysis function plan, and design data coding and analysis function technical framework;

[0030] Sort and filter data information, formulate universal data format standards, and achieve data standardization;

[0031] Establish data coding and parsing mechanisms based on the types and characteristics of standardized data;

[0032] Write data encoding and parsing function process elements and develop data encoding and parsing functions.

[0033] 4. Step (7) Designing and developing the instructor teaching function module includes the following steps:

[0034] Write the technical plan for the teacher's teaching function and design the framework structure of the teacher's teaching function;

[0035] Based on the gas turbine subsystem functional characteristics database, develop subsystem functional characteristics teaching function;

[0036] Develop subsystem maintenance teaching function based on system maintenance process database;

[0037] Formulate the operating procedures for the instructor demonstration teaching function and use a standardized description language to codify the operating logic of the function;

[0038] Write the teacher teaching function elements and develop the teacher teaching function module.

[0039] The advantages of the present invention are:

[0040] 1. The present invention is specially designed for use in gas turbine teaching scenarios to meet the interactive needs of instructors and students during explanation and demonstration;

[0041] 2. The instructors intuitively demonstrate the functional characteristics of each gas turbine subsystem to the trainees in a virtual environment, allowing the trainees to have a deeper understanding and grasp of the operating principles of these key systems;

[0042] 3. Aiming at the scenario where students are learning gas turbine maintenance, the instructor demonstrates the correct maintenance steps and techniques to students in a virtual environment, so that students can deeply understand and master the functional characteristics of each subsystem of the gas turbine and the specific steps of maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the structure of the present invention;

[0044] Figure 2 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0045] The present invention is described in more detail below with reference to the accompanying drawings:

[0046] Combination Figure 1-2 The present invention provides a gas turbine instructor teaching method based on virtual reality, comprising the following steps:

[0047] Step 1: Analyze the operating status and functional characteristics of each gas turbine subsystem and establish a gas turbine subsystem functional characteristics database. (1) Collect gas turbine subsystem functional characteristics data, clean, organize and classify the collected data; (2) Compile a knowledge graph of gas turbine subsystem functional characteristics and build a framework for the gas turbine subsystem functional characteristics database; (3) Establish a general description method for gas turbine subsystem functional characteristics; (4) Establish a general description language standard for gas turbine subsystem functional characteristics; (5) Integrate the general description method for gas turbine subsystem functional characteristics and the general description language for functional characteristics into the gas turbine subsystem functional characteristics database.

[0048] Step 2: Analyze the maintenance process of typical parts of the gas turbine system and establish a maintenance process database of typical parts of the system. (1) Collect typical parts maintenance process data, clean, organize and classify the collected data; (2) Write a maintenance process plan for the gas turbine and build a framework for the system maintenance process database; (3) Establish a typical parts maintenance process method module; (4) Establish a typical parts maintenance process general description language standard; (5) Integrate the typical parts maintenance process data method module and the maintenance process general description language into the system maintenance process database.

[0049] Step 3: Use 3d Max technology to classify and model typical parts, tools, plants and people in the maintenance process database of step 2. Prefabricate and render three-dimensional models based on the precise geometric size parameters and material performance parameters of gas turbines, tools, plants and people, and establish a system three-dimensional model database. (1) Count, sort and classify the three-dimensional models that need to be modeled; (2) Use 3d Max technology to make three-dimensional models and render the materials of the three-dimensional models; (3) Perform parametric curve and surface triangulation on a large number of three-dimensional models, and use triangle networks to approximate the precise three-dimensional models; (4) Design the functional structure of the system three-dimensional model database and establish the system three-dimensional model database.

[0050] Step 4: Use a virtual reality head mounted display device to build the system hardware environment, build the system virtual environment with the prefabricated 3D simulation model in step 3, and further process the 3D model to enable it to have human-computer interaction functions. (1) Integrate the 3D model into the system virtual environment; (2) Simplify the internal structure of the 3D model, hide or delete unnecessary structural models; (3) Reduce the rendering effects of light, shadow, material and other components in the internal structure of the 3D model to generate a lightweight 3D model; (4) Load the corresponding functional components according to different functions of the 3D model to enable it to have human-computer interaction functions.

[0051] Step 5: Write the gas turbine maintenance process flow based on the maintenance process database in step 2, import the written gas turbine maintenance process flow into the system environment built in step 4, perform logical control on the virtual maintenance process of the gas turbine, and integrate the gas turbine subsystem functional characteristics database in step 1 into the system. (1) Sort out the maintenance process of the gas turbine according to the maintenance process database; (2) Sort out the logical relationship between all method modules and design the gas turbine maintenance process logic flow; (3) Draw a flowchart to standardize the description of the gas turbine maintenance process; (4) Use the standard maintenance process general description language to write the gas turbine maintenance process flow.

[0052] Step 6: Based on the system in step 5, build a TCP / IP Socket communication protocol framework, establish a data sending and receiving mechanism, develop the client and server, and design and develop data encoding and parsing functions. (1) Write a data encoding and parsing function plan and design a data encoding and parsing function technical framework; (2) Sort and filter data information, formulate a general data format standard, and achieve data standardization; (3) Based on the type and characteristics of standardized data, establish a data encoding and parsing mechanism; (4) Write the data encoding and parsing function process elements and develop data encoding and parsing functions.

[0053] Step 7: Design and develop the instructor teaching function module, which includes the development of subsystem maintenance teaching function and subsystem function characteristic teaching function, and integrate it with the system data encoding and parsing function module in step 6, so that the system can realize multi-scenario data real-time synchronization and instructor teaching function. (1) Write the instructor teaching function technical plan and design the instructor teaching function framework structure; (2) Based on the gas turbine subsystem function characteristic database, develop the subsystem function characteristic teaching function; (3) Based on the system maintenance process database, develop the subsystem maintenance teaching function; (4) Formulate the operation process specification of the instructor demonstration teaching function, and use the standardized description language to compile the operation logic of the function; (5) Write the instructor teaching function elements and develop the instructor teaching function module.

[0054] Step 8: Design and develop a human-computer interaction interface, integrate it into the system described in step 7, and build a gas turbine instructor teaching system based on virtual reality. (1) Sort out the names of training scenario tasks and design a human-computer interaction interface; (2) Write a system manual and develop a system usage guidance function; (3) Optimize the functional components of the human-computer interaction interface and design and develop human-computer interaction functions.

[0055] Step 9: The instructor and multiple trainees use the virtual reality gas turbine instructor teaching system for testing at the same time. The instructor explains the functions of each subsystem and demonstrates system maintenance to multiple trainees at the same time. The trainees can deeply understand and master the functional characteristics of each subsystem of the gas turbine and the specific steps of the maintenance work.

Claims

1. A gas turbine instructor teaching method based on virtual reality, characterized by: The steps include: (1) Analyze the operating status and functional characteristics of each gas turbine subsystem and establish a gas turbine subsystem functional characteristics database; (2) Analyze the maintenance process of typical parts of the gas turbine system and establish a maintenance process database of typical parts of the system; (3) using 3D Max technology to classify and model typical parts, tools, workshops, and people of the gas turbine system in the maintenance process database of step (2); prefabricate and render three-dimensional models based on geometric size parameters and material performance parameters of the gas turbine, tools, workshops, and people, and establish a system three-dimensional model database; (4) Using a virtual reality head mounted display device to build a system hardware environment, the three-dimensional simulation model prefabricated in step (3) is used to build a system virtual environment, and the three-dimensional model is further processed to enable it to have a human-computer interaction function; (5) compiling a gas turbine maintenance process flow based on the maintenance process database in step (2), importing the compiled gas turbine maintenance process flow into the system environment constructed in step (4), performing logical control on the gas turbine virtual maintenance process, and integrating the gas turbine subsystem functional characteristic database in step (1) into the system; (6) Based on step (5), the system builds a TCP / IP Socket communication protocol framework, establishes a data sending and receiving mechanism, develops the client and server, and designs and develops data encoding and parsing functions; (7) Design and develop a teacher teaching function module, which includes developing a subsystem maintenance teaching function and a subsystem functional characteristic teaching function, and integrates it with the system data encoding and parsing function module in step (6), so that the system can realize real-time synchronization of multi-scenario data and a teacher teaching function; (8) Design and develop a human-computer interaction interface, integrate it into the system in step (7), and build a gas turbine instructor teaching system based on virtual reality; (9) The instructor and the trainees simultaneously use the virtual reality-based gas turbine instructor teaching system for testing.

2. The virtual reality-based gas turbine instructor teaching method according to claim 1 is characterized by: Step (1) The steps of establishing the gas turbine subsystem functional characteristic database are as follows: Collect data on gas turbine subsystem functional characteristics, and clean, organize and classify the collected data; Compile the knowledge graph of gas turbine subsystem functional characteristics and build the framework of gas turbine subsystem functional characteristics database; Establish a general description method for the functional characteristics of gas turbine subsystems; Establish a universal description language standard for gas turbine subsystem functional characteristics; The general description method of gas turbine subsystem functional characteristics and the general description language of functional characteristics are integrated into the gas turbine subsystem functional characteristics database.

3. The virtual reality-based gas turbine instructor teaching method according to claim 1 is characterized by: Step (2) The steps for establishing a typical parts maintenance process database for the system are as follows: Collect typical parts maintenance process data, clean, organize and classify the collected data; Write maintenance process plans for gas turbines and build the framework of the system maintenance process database; Establish typical parts maintenance process method module; Establish a general description language standard for typical parts maintenance processes; The typical parts maintenance process data method module and the maintenance process general description language are integrated into the system maintenance process database.

4. The virtual reality-based gas turbine instructor teaching method according to claim 1 is characterized by: Developing the data encoding and parsing function in step (6) includes the following steps: Prepare data coding and analysis function plan, and design data coding and analysis function technical framework; Sort and filter data information, formulate universal data format standards, and achieve data standardization; Establish data coding and parsing mechanisms based on the types and characteristics of standardized data; Write data encoding and parsing function process elements and develop data encoding and parsing functions.

5. The virtual reality-based gas turbine instructor teaching method according to claim 1 is characterized by: Step (7) Designing and developing the instructor teaching function module includes the following steps: Write the technical plan for the teacher's teaching function and design the framework structure of the teacher's teaching function; Based on the gas turbine subsystem functional characteristics database, develop subsystem functional characteristics teaching function; Develop subsystem maintenance teaching function based on system maintenance process database; Formulate the operating procedures for the instructor demonstration teaching function and use a standardized description language to codify the operating logic of the function; Write the teacher teaching function elements and develop the teacher teaching function module.

Images