Virtual reality-based gas turbine instructor teaching method

Abstract

The present application aims to provide a virtual reality-based gas turbine instructor teaching method, comprising the following steps: establishing a gas turbine subsystem function characteristic database; establishing a system typical component maintenance process database; establishing a system three-dimensional model database; building a three-dimensional simulation model into a system virtual environment; writing a gas turbine maintenance process flow and importing the built system environment, integrating the gas turbine subsystem function characteristic database in the system; building a TCP / IP Socket communication protocol framework, establishing a data transceiver mechanism, developing a client and a server, and designing and developing data coding and parsing functions; designing and developing an instructor teaching function module; designing and developing a human-computer interaction interface and integrating it into the system; the instructor and the student simultaneously use the virtual reality-based gas turbine instructor teaching system for testing. The present application is specially used for gas turbine teaching scene, and meets the interactive needs of the instructor and the student in the explanation and demonstration process.

Description

TECHNICAL FIELD

[0001] The present application relates to a gas turbine teaching method, in particular to a virtual gas turbine teaching method. BACKGROUND

[0002] As a key component in the power system, the gas turbine has high system integration and automation, and the corresponding operation, maintenance and repair technology has high requirements. Before the trainee maintenance operation, the instructor should first explain the function characteristics of each subsystem of the gas turbine to the trainee in detail, and then demonstrate the correct maintenance steps and skills to the trainee through actual operation. In the process of training and explanation using the entity prototype machine, since the subsystems are highly integrated in the whole gas turbine, it is difficult to disassemble and display alone, which undoubtedly brings great challenges to the trainee to deeply understand the actual running state and unique function of each subsystem. By using virtual reality technology to simulate the real running state of the equipment in the real environment, the instructor can simultaneously explain the function of each subsystem and vividly demonstrate the system maintenance skills to multiple trainees, which has a highly immersive experience and a light virtual reality interactive operation environment, providing a full-factor and full-process virtual instructor teaching platform for trainees. Through the search of the prior art documents, it is 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 general method suitable for industrial operation, which has achieved good results. However, the application of this method in the field of gas turbine is limited, it cannot meet the needs of the instructor in teaching function, and it also lacks detailed teaching materials for the function of gas turbine subsystems. SUMMARY

[0003] The purpose of the present application is to provide a virtual reality-based gas turbine instructor teaching method that can visually display the function characteristics of each subsystem of the gas turbine and the correct maintenance steps and skills to the trainee in a virtual environment.

[0004] The purpose of the present application is achieved as follows:

[0005] The virtual reality-based gas turbine instructor teaching method of the present application is characterized by comprising the following steps:

[0006] (1) analyzing the running state and function characteristics of each subsystem of the gas turbine, and establishing a gas turbine subsystem function characteristics database;

[0007] (2) analyzing the maintenance process of typical parts of the gas turbine system, and establishing a system typical part maintenance process database;

[0008] (3) The typical components, tools, workshops and personnel of the gas turbine system in the maintenance process database of step (2) are classified and modeled using 3d Max technology. Based on the geometric dimension parameters and material performance parameters of the gas turbine, tools, workshops and personnel, three-dimensional models are prefabricated and rendered to establish a three-dimensional model database of the system.

[0009] (4) Use virtual reality head-mounted display devices to build the system hardware environment, build the system virtual environment using the three-dimensional simulation model prefabricated in step (3), and further refine the three-dimensional model to enable it to have human-computer interaction function;

[0010] (5) Based on the maintenance process database of step (2), write the gas turbine maintenance process flow, 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 characteristic database of step (1) into the system;

[0011] (6) Based on step (5), build a TCP / IP Socket communication protocol framework, establish a data sending and receiving mechanism, develop client and server, and design and develop data encoding and parsing functions;

[0012] (7) Design and develop the instructor teaching function module, which includes the development of subsystem maintenance teaching function and subsystem functional characteristic teaching function, and integrate it with the system data encoding and parsing function module in step (6). The system realizes real-time data synchronization in multiple scenarios and instructor teaching function.

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

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

[0015] The present invention may also include:

[0016] 1. Step (1) to establish the functional characteristic database of the gas turbine subsystem is as follows:

[0017] Collect functional characteristic data of gas turbine subsystems, and clean, organize and classify the collected data;

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

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

[0020] Establish a standard for a general description language of the functional characteristics of gas turbine subsystems;

[0021] Integrating the universal description method of gas turbine subsystem function characteristics and the universal description language of function characteristics in the gas turbine subsystem function characteristics database.

[0022] 2. The step (2) establishes the steps of the system typical component maintenance process database as follows:

[0023] Collecting typical component maintenance process data, cleaning, arranging and classifying the collected data;

[0024] Writing the maintenance process scheme of the gas turbine and building the framework of the system maintenance process database;

[0025] Establishing the typical component maintenance process method module;

[0026] Establishing the typical component maintenance process universal description language standard;

[0027] Integrating the typical component maintenance process data method module and the maintenance process universal description language in the system maintenance process database.

[0028] 3. The development of data coding and analysis function in step (6) includes the following steps:

[0029] Preparing the data coding and analysis function scheme and designing the technical framework of data coding and analysis function;

[0030] Combing and screening data information, formulating the data universal format standard and realizing data standardization;

[0031] Based on the types and characteristics of standardized data, establishing the data coding and analysis mechanism;

[0032] Writing the data coding and analysis function flow elements and developing the data coding and analysis function.

[0033] 4. The design and development of instructor demonstration function module in step (7) includes the following steps:

[0034] Writing the technical scheme of instructor demonstration function and designing the framework structure of instructor demonstration function;

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

[0036] Based on the system maintenance process database, developing the subsystem maintenance demonstration function;

[0037] Formulating the operation flow specification of instructor demonstration teaching function and using the standardized description language to compile the operation logic of the function;

[0038] Writing the instructor demonstration function elements and developing the instructor demonstration function module.

[0039] The advantages of the present application are:

[0040] 1. The present application is specially used for gas turbine teaching scene, meeting the interactive needs of teachers and students in the process of explanation and demonstration;

[0041] 2. The teachers show the functional characteristics of each subsystem of the gas turbine to the students in the virtual environment, so that the students can better understand and master the operation principle of these key systems;

[0042] 3. For the scene of students learning gas turbine maintenance, the teachers show the correct maintenance steps and skills to the students in the virtual environment, so that the students can better understand and master the functional characteristics of each subsystem of the gas turbine and the specific steps of maintenance work. BRIEF DESCRIPTION OF DRAWINGS

[0043] Fig. 1 The schematic diagram of the architecture of the present application;

[0044] Fig. 2 The flowchart of the present application. DETAILED DESCRIPTION

[0045] The present application will be described in more detail below with examples combined with the drawings:

[0046] Combined Figs. 1-2 , the present application is a kind of gas turbine teacher demonstration method based on virtual reality, comprising the following steps:

[0047] Step 1: analyze the running state and functional characteristics of each subsystem of the gas turbine, and establish a gas turbine subsystem function characteristic database.(1) Collect the functional characteristic data of the gas turbine subsystem, clean, arrange and classify the collected data;(2) Write the knowledge graph of the functional characteristics of the gas turbine subsystem, and build the framework of the gas turbine subsystem function characteristic database;(3) Establish a general description method for the functional characteristics of the gas turbine subsystem;(4) Establish a general description language standard for the functional characteristics of the gas turbine subsystem;(5) Integrate the general description method and the general description language of the functional characteristics of the gas turbine subsystem in the gas turbine subsystem function characteristic database.

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

[0049] Step 3: Classify and model the typical components, tooling, plant, and personnel of the gas turbine system in the step 2 repair process database using 3D Max technology. Based on the precise geometric size parameters and material performance parameters of the gas turbine, tooling, plant, and personnel, precast and render the three-dimensional model to establish a system three-dimensional model database. (1) Statistic, 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 material of the three-dimensional models; (3) parameterize the curve surface triangle processing of a large number of three-dimensional models, and express the accurate three-dimensional model with triangular network approximation; (4) design the functional structure of the system three-dimensional model database, and establish the system three-dimensional model database.

[0050] Step 4: Use virtual reality head-mounted display equipment to build a system hardware environment, and build a system virtual environment with the three-dimensional simulation model precast in step 3, and further deepen the processing of the three-dimensional model to make it have human-computer interaction function. (1) integrate the three-dimensional model into the system virtual environment; (2) simplify the internal structure of the three-dimensional model, hide or delete unnecessary structure model; (3) reduce the rendering effect of the light and shadow, material and other of the components in the internal structure of the three-dimensional model, and generate lightweight three-dimensional model; (4) load the corresponding functional components according to different functions to make the three-dimensional model have human-computer interaction function.

[0051] Step 5: Based on the repair process database in step 2, write the gas turbine repair process, import the written gas turbine repair process into the system environment built in step 4, control the logic of the virtual repair process of the gas turbine, and integrate the gas turbine subsystem function characteristic database in step 1 into the system. (1) According to the repair process database, sort out the repair process of the gas turbine; (2) sort out the logical relationship between all method modules, design the logic flow of the repair process of the gas turbine; (3) draw flowchart to standardize the description of the repair process of the gas turbine; (4) use standard repair process general description language to write the repair process of the gas turbine.

[0052] Step 6: Based on the system built in step 5, build a TCP / IP Socket communication protocol framework, establish a data transceiver mechanism, develop a client and a server, and design and develop data coding and parsing functions. (1) Write a data coding and parsing function scheme, and design a data coding and parsing function technical framework; (2) sort and select data information, formulate a data general format standard, and realize data standardization; (3) based on the type and characteristics of standardized data, establish a data coding and parsing mechanism; (4) write the data coding and parsing function elements, and develop the data coding and parsing function.

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

[0054] Step 8: Design and develop human-computer interaction interface, integrate it into the system described in step 7, build virtual reality-based gas turbine instructor demonstration system.(1) Sort out training scene task name, design human-computer interaction interface; (2) Write system instruction manual, develop system use guide function; (3) Optimize human-computer interaction interface function components, design and develop human-computer interaction function.

[0055] Step 9: Instructor and multiple students use virtual reality gas turbine instructor demonstration system for testing at the same time, instructor simultaneously launches function explanation and system maintenance demonstration of each subsystem to multiple students, students can deeply understand and master the function characteristics of each subsystem of gas turbine and the specific steps of maintenance operation.

Claims

1. A virtual reality-based gas turbine instructor teaching method, characterized by: Comprise the following steps: (1) The running state and function characteristics of each subsystem of the gas turbine are analyzed, and a gas turbine subsystem function characteristics database is established; The steps for establishing the gas turbine subsystem function characteristics database are: Collecting gas turbine subsystem function characteristics data, cleaning, organizing and classifying the collected data; Writing a gas turbine subsystem function characteristics knowledge graph and building a framework for the gas turbine subsystem function characteristics database; Establishing a general description method for the function characteristics of the gas turbine subsystem; Establishing a general description language standard for the function characteristics of the gas turbine subsystem; Integrating the general description method and the general description language for the function characteristics of the gas turbine subsystem into the gas turbine subsystem function characteristics database; (2) The maintenance process of typical components of the gas turbine system is analyzed, and a system typical component maintenance process database is established; The steps for establishing the system typical component maintenance process database in step (2) are: Collecting typical component maintenance process data, cleaning, organizing and classifying the collected data; Writing a maintenance process scheme for the gas turbine and building a framework for the system maintenance process database; Establishing a typical component maintenance process method module; Establishing a general description language standard for the typical component maintenance process; Integrating the typical component maintenance process data method module and the general description language for the maintenance process into the system maintenance process database; (3) The typical components, tools, workshops and characters in the maintenance process database in step (2) are modeled using 3d Max technology, and three-dimensional models are prefabricated and rendered according to the geometric size parameters and material performance parameters of the gas turbine, tools, workshops and characters, and a system three-dimensional model database is established; (4) A virtual reality head-mounted display device is used 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 have human-computer interaction function; (5) Based on the maintenance process database in step (2), a gas turbine maintenance process flow is written, the written gas turbine maintenance process flow is imported into the system environment built in step (4), the logic control of the virtual maintenance process of the gas turbine is carried out, and the gas turbine subsystem function characteristics database in step (1) is integrated into the system; (6) Based on the system in step (5), a TCP / IP Socket communication protocol framework is built, a data receiving and sending mechanism is established, a client and a server are developed, and data coding and parsing functions are designed and developed; (7) The teacher demonstration function module is designed and developed, which includes the development of subsystem maintenance demonstration function and subsystem function characteristics teaching function, and is integrated with the system data coding and parsing function module in step (6), so that the system realizes real-time synchronization of multi-scene data and teacher demonstration function; (8) The human-computer interaction interface is designed and developed, which is integrated into the system in step (7) to build a virtual reality-based gas turbine teacher demonstration system; (9) The teacher and the student use the virtual reality-based gas turbine teacher demonstration system for testing at the same time.

2. A virtual reality based gas turbine instructor teaching method as claimed in claim 1, wherein: The development of data coding and parsing functions in step (6) includes the following steps: Designing the data coding and parsing function scheme and designing the data coding and parsing function technical framework; Collating and screening data information, formulating data general format standards and realizing data standardization; Based on the types and characteristics of standardized data, establishing data coding and parsing mechanism; Writing data coding and parsing function flow elements and developing data coding and parsing function.

3. The virtual reality based gas turbine instructor teaching method as set forth in claim 1, characterized by: Step (7) designing and developing instructor demonstration function module includes the following steps: Writing instructor demonstration function technical scheme and designing instructor demonstration function framework structure; Based on the gas turbine subsystem function characteristic database, developing subsystem function characteristic teaching function; Based on the system maintenance process database, developing subsystem maintenance demonstration function; Formulating the operation flow specification of instructor demonstration teaching function and using standardized description language to compile the operation logic of the function; Writing instructor demonstration function elements and developing instructor demonstration function module.

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