Electric power teaching and practical training simulation system and method

Abstract

The invention provides an electric power teaching and practical training simulation system and method, and belongs to the technical field of electric power system teaching. A switch enables a main control computer, each student computer, a switchboard, a lightning arrester and teaching and practical training equipment to be in communication connection; the main control computer is used for realizing driving, practical training control, function conversion, fault simulation and signal generation and controlling corresponding equipment; the main control computer extracts test questions from a test question bank and distributes the test questions to the student machines based on teaching and practical training instructions, and after the student machines obtain the test questions, the student machines enter a test question assessment interface and perform answering operation; and after the student finishes answering the question and clicks a submitting button, examination information is sent to the main control computer, and the main control computer processes, analyzes and records the examination information, comprehensively evaluates the operation condition, the training subject completion condition and the training time index of the student, gives out an examination score and stores the score. Electric power teaching and practical training are achieved, the ability of students is improved, and the training requirement is met.

Description

Technical Field

[0001] The invention belongs to the technical field of power system teaching, and in particular relates to a power teaching and practical training simulation system and method. Background Art

[0002] In the existing technology, the skills of new employees or trainees are improved through power teaching and practical training simulation. The operation simulation and emulation of the power system is an important part of the power system. Its main purpose is to predict and analyze the operation status of the power system through mathematical models and calculation methods. Such technical means can help power system engineers verify the performance of the system before actual operation and improve the reliability and safety of the system.

[0003] Simulation methods are mainly divided into two categories: static simulation and dynamic simulation. Static simulation mainly studies the steady-state characteristics of the power system, such as power flow calculation and fault analysis; dynamic simulation mainly studies the dynamic characteristics of the power system, such as short-circuit faults, overvoltage, transient stability of the power system, etc.

[0004] At present, among the disclosed simulation systems, a low-voltage power system dynamic simulation system is involved, and the file includes a low-voltage power system monitoring system and a low-voltage power dynamic simulation unit, and the low-voltage power system monitoring system includes a global scanning module and a leakage detection module. The present invention relates to the field of power system dynamic simulation technology. The low-voltage power system dynamic simulation system, through the low-voltage power system monitoring system including a global scanning module and a leakage detection module, can monitor the low-voltage power system dynamic simulation system in real time, and immediately notify the staff in case of an emergency. The file allows the staff to use the dynamic simulation system more safely and conveniently.

[0005] The low-voltage power system dynamic simulation system disclosed in the document has relatively simple functions and cannot realize real operations and simulation actions based on a virtual environment. It is impossible to improve the training plan according to the training situation, resulting in poor training targeting and failure to meet the requirements of practical training. Summary of the invention

[0006] The present invention provides an electric power teaching and practical training simulation system, which improves the training plan according to the training situation and improves the pertinence of the training.

[0007] The system includes: a main control machine, a switch, multiple student machines, a simulation control cabinet, a distribution board, and a lightning arrester;

[0008] The switch enables communication between the main control computer, each student computer, the switchboard, the lightning arrester, and the teaching and training equipment;

[0009] The simulation control cabinet includes: a power cabinet and a host cabinet;

[0010] The main cabinet includes: JS device unit, FW signal source unit, controller unit, SP conversion unit, JS encoding unit, JL device unit and GF cabinet;

[0011] The main control machine is used to realize driving, practical training control, function conversion, fault simulation, signal generation and control of corresponding equipment. It is also used to obtain teaching and practical training test questions and store them in the test question bank.

[0012] Based on the teaching and practical training instructions, the main control computer extracts test questions from the test question bank and distributes them to the student computers. After receiving the test questions, the student computers enter the test question assessment interface and answer the questions. After the students finish answering the questions and click the submit button, the assessment information is sent to the main control computer. The main control computer processes, analyzes and records the assessment information, conducts a comprehensive assessment of the student's operation, completion of training subjects, and training time indicators, gives the assessment results, and stores the results.

[0013] It should be further explained that the main control computer and the student computer are respectively configured with virtual training software, so that the main control computer and the student computer can respectively realize the virtual simulation operation of the system based on virtual reality and computer simulation technology, and build the entire three-dimensional virtual teaching and training environment;

[0014] The virtual training software also enables fault simulation and operation process teaching. The fault simulation can truly reproduce the fault phenomenon; it also enables practical and theoretical assessment functions.

[0015] The main control machine collects the hardware operation data of the simulation control cabinet and controls the operation of the corresponding indicator lights.

[0016] It should be further explained that the main control computer is also equipped with simulation training software, which performs simulation solution based on the simulation training software combined with the collected training data to obtain the data of the student machine simulation practice training, and performs solution to output the training status data.

[0017] It should be further explained that the main control machine is also equipped with a virtual instructor training mode, a free practice training mode, and a subject assessment training mode;

[0018] The virtual instructor training mode has a virtual instructor training interface, which is used to help trainees complete training tasks through operation guidance and operation prompts;

[0019] The free practice training mode has a free practice training interface, which allows students to practice any subject as needed, and seek help and consult electronic materials at any time;

[0020] The subject assessment training mode has a subject assessment training interface, which is used to enable trainees to conduct designated subject training. By recording a series of operations of the operator, the system compares them with the correct operations and scores them, thereby achieving automatic evaluation.

[0021] It should be further explained that the power cabinet is used to realize power supply to the system. The power cabinet has a built-in single-phase power filter, leakage protector, terminal block and two 220V to 48V transformers as backup for each other and used to drive the voltage meter indication;

[0022] The power cabinet outputs 48V and 220V voltages, has the operation and display of a simulated power cabinet, and simulates the overall structure of a real power cabinet.

[0023] It should be further explained that the JS unit is used to realize the scrolling display of certain parameters and the alarm effect when abnormalities occur, and provide analog voltage and signal output. The JS unit is provided with a red GJ indicator light, a GJ display window, a red LED digital tube, a test interface, a GJ button, and a lock switch handle;

[0024] The FW signal source unit is used to realize the simulation display of FW parameters for teaching and practical training, as well as the display effect when the parameters are abnormal, and provides analog voltage and signal output;

[0025] The controller unit is used to realize manual and automatic on / off operation and corresponding instrument indication, and also realizes GJ prompt and dual-machine conversion function, and provides analog part voltage and signal output.

[0026] It should be further explained that the SP conversion unit is used to provide the appearance and interface of the SP conversion unit, and realize the regular change of the analog passive cavity filter and the logarithmic output; the SP conversion unit detects the value of the knob, and after calculation by the internal unit, drives the digital quantity or analog quantity interface to provide signal input to other units;

[0027] The JS coding unit is used to realize the simulation and test functions of the signals of each test point. The JS coding unit drives the digital or analog interface, indicator light and measuring instrument through the signals of the JS trigger switch, switch handle, knob and input test port after calculation by the internal unit.

[0028] It should be further explained that the JL device unit is used to realize the simulation and test functions of the signals at each test point. Through the JS knob and the signal of the input test port, after calculation by the internal unit, it drives the digital or analog interface, indicator light and measuring instrument; the JL device unit directly outputs the JS external unit instruction;

[0029] The signal input by the JS knob of the GF cabinet drives the status display of the indicator lights of the voltmeter and ammeter after calculation, and is output through the analog output of the feeder interface.

[0030] It should be further explained that the main control computer controls the entire training process and completes the initialization of the training subjects by reading the information of the test question bank;

[0031] The task setting is completed by selecting the training subject and training mode. After the setting is completed, the subject information is sent to the 3D virtual training assessment system to start the training task;

[0032] During the training process, the system can be controlled to start, restart, pause and terminate; faults can be set during training and the causes of the faults can be specified. After simulation and solution, the simulation training system and the 3D virtual training assessment system will display the fault phenomena; the operation process of the system can be recorded and saved, and unified data management of the operation status and assessment results of the 3D virtual training system can be performed.

[0033] The present invention also provides an electric power teaching and practical training method, the method comprising:

[0034] The teacher sends training tasks to each student computer through the main control computer. The students connect the student computer to the simulation control cabinet to perform physical operations or operate the virtual cabinet in a three-dimensional virtual scene to achieve process simulation training. The virtual cabinet and the simulation control cabinet will synchronize their status in real time.

[0035] In the method, the teacher issues training tasks through the main control computer, and the students use the student computers to learn the parts in the 3D virtual scene, which supports the students to roam in the 3D virtual scene and learn through text, voice reminders and videos. The teacher controls the training process through the main control computer and summarizes and comments on the final training results.

[0036] The method also includes: the teacher extracts the test questions through the main control computer and sends them to the student computer for test training, the student answers the test through the student computer, and the teacher records the operation status of the student computer, the completion status of the training subjects, and the training time through the main control computer and makes a comprehensive judgment to give a score.

[0037] It can be seen from the above technical solutions that the present invention has the following advantages:

[0038] The power teaching and practical training simulation system provided by the present invention integrates the various equipment resources in the training system network, builds and manages the overall system operating environment, provides underlying platform support for system services, and is connected to other systems through a local area network based on the C / S mode to perform hardware-driven software driving. In order to improve the testability of the system, the system can design a device self-test function based on the components of the power teaching and practical training simulation system, which can detect the working status of each electrical component of the device and display the self-test results of the network detection and data interface system input and output signals in the form of a software interface.

[0039] To improve the stability of the system, the operating status of each hardware device is monitored in real time during system operation and displayed in a list format, which facilitates real-time monitoring of the overall operating status. When a device fails, the fault point can be quickly found and maintained to ensure the normal operation of the system. To improve the practicality of the system, unified operation control of all software in the training system is supported. The driver module can quickly start the software in the training system, start the training task with one click, and ensure that the training system quickly enters the training state.

[0040] The present invention also monitors the running status of all software in the system and displays it in the form of a list. It also supports the control of the running status of the software, can autonomously adjust the startup and shutdown of the software, and maintain the software operation in the training system. The main control machine can control the entire training process and complete the initialization of the training subject by reading the content of the training subject information library. The task setting is completed by selecting the training subject and the training mode. After the setting is completed, the subject information is sent to the three-dimensional virtual training assessment system to start the training task. During the training process, the system can be started, restarted, paused and terminated at will to control the training process. Faults can be set during the training process, and the causes of the faults can be specified. After simulation and solution, the simulation training system and the three-dimensional virtual training assessment system display the fault phenomenon. The operation process of the simulation training system is recorded and saved, and unified data management is performed on the operation status and assessment results of the three-dimensional virtual training system.

[0041] After the training is completed, the master control unit will uniformly obtain the assessment results of the simulation subsystem and the three-dimensional virtual assessment subsystem through internal network communication, and store and manage them locally. By viewing the assessment data, the overall training situation can be analyzed, and the training plan can be improved according to the training situation to improve the targeted nature of the training.

[0042] Moreover, the present invention also enables trainees to select a certain equipment structure for training. The system can realize the equipment explosion function, and assist teaching with text, voice, animation, video, etc., to ensure that trainees can intuitively understand the detailed information of each component, greatly improving learning efficiency.

[0043] The electric power teaching and practical training simulation system provided by the present invention also simulates the logical operating relationship between the control panel and components through virtual reality technology and computer simulation technology, and builds a three-dimensional virtual teaching and training environment to realize subject exercises such as component identification, virtual training, data consultation, theoretical assessment, etc. for a certain type of XX equipment simulator, which is convenient for personnel virtual maintenance training. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0045] Figure 1 Simulate system schematic diagram for power teaching and practical training;

[0046] Figure 2 This is a schematic diagram of a simulated control cabinet;

[0047] Figure 3 It is a schematic diagram of an embodiment of a simulation system for electric power teaching and practical training;

[0048] Figure 4 This is a schematic diagram of the system training and teaching functions;

[0049] Figure 5 This is the operation flow chart of the virtual instructor mode;

[0050] Figure 6 This is the free practice mode flow chart;

[0051] Figure 7 This is the flow chart of the subject assessment model. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] The present invention adopts the network system integration method to meet the needs of power teaching and practical training through the combination of virtual and real means. Figure 1 and Figure 2 The power teaching and practical training simulation system shown includes: a main control machine, a switch, multiple student machines, a simulation control cabinet, a switchboard, and a lightning arrester. The switch enables the main control machine, each student machine, the switchboard, the lightning arrester, and the teaching and training equipment to communicate and connect.

[0054] The simulation control cabinet includes: a power cabinet and a main cabinet; the main cabinet includes: a JS device unit, a FW signal source unit, a controller unit, an SP conversion unit, a JS encoding unit, a JL device unit and a GF cabinet.

[0055] Students can complete the learning and training of practical subjects on the simulated control cabinet through the student machine. After the students operate the physical buttons and switches, the general acquisition host computer collects the data, and displays the status of the data returned after the solution in real time, changing the corresponding performance of the indicator light.

[0056] For the power cabinet, the whole machine is powered, 48V and 220V voltages can be output, the operation and display of the cabinet can be simulated, and the overall structure of the unit can be simulated 1:1. Cabinet size: height 80cm, width 53cm, depth 45cm, base height 7cm. The shell of the power cabinet is made of steel plate sprayed with anti-rust paint. The front panel, rear panel and four corners are fixed by screws and can be removable. The front panel is divided into upper and lower parts. The upper panel has holes for installing voltmeters, indicator lights, air switches, handles, red and green push switches, and the lower panel has downward air outlets and is sprayed with black text. The power cabinet has two built-in 220V to 48V transformers that back up each other and are used to drive the voltmeter indication, unidirectional power filter, leakage protector, terminal board, and several connecting wires. The rear panel of the power cabinet is equipped with 1 220V input port, 1 48V output port, and 1 220V output port.

[0057] The main cabinet has a fixed cabinet with multiple unit modules. Multiple units are arranged in a stacked layout. Each unit adopts a slide drawer structure design. One slide must be installed on each side of the frame to ensure that each unit can be independently drawn out. The casing is made of steel plate sprayed with anti-rust paint. The rear panel can be opened to one side, and a pull rod lock is installed on the other side. A feeder interface is set at the bottom of the rear panel, corresponding to multiple simulated wiring heads and connecting wires.

[0058] The JS unit of this embodiment realizes the scrolling display of parameters in the process of power teaching and practical training, as well as the alarm effect in case of abnormality, can simulate partial voltage and signal output, can complete the actual operation and corresponding display effect, and can simulate the overall structure of the unit 1:1. The JS unit has a front panel, 2 fixed rings on the front panel, a red GJ indicator light, and multiple red LED digital tubes, and also includes a test interface, a white button, a red button, a lock switch handle, and spray-painted black text.

[0059] The JS device unit adopts a left-right symmetrical structure with the same components on the left and right. Taking the left circuit as an example, it has a circuit board mounting base, a fixed backplane, a cover plate fixing seat installed above the fixed backplane, 1 cover plate of corresponding size, a simulation model circuit board with an upright layout and can be plugged in and out of the corresponding base, a power board simulation model, a counting board simulation model, and a speaker.

[0060] The design of the right side of the JS device unit is exactly the same as that of the left side and will not be repeated here. There are four up and down toggle switches in the middle.

[0061] The rear panel of the JS device unit is designed with multiple feeder interfaces, corresponding to multiple simulated wiring heads and connecting wires, and a fuse base.

[0062] The FW signal source unit of this embodiment can realize the simulation display of parameters and the display effect when the parameters are abnormal, can simulate part of the voltage and signal output, can complete the actual operation and the corresponding display effect, and can simulate the overall structure of the unit 1:1. The front panel of the FW signal source unit has an indicator instrument and a display window, and the display window consists of 6 red LED digital tubes and an 11-level knob.

[0063] The FW signal source unit has a detection board, a switch 82dB attenuator, a 3-port directional coupler, an analog power supply board, an analog high-frequency signal source square box, and an analog circuit board metal square box. Each square box has its name printed on the top and can be opened from the side. The square box contains a circuit board, a speaker is installed on the corresponding circuit board base, and several connecting wires are connected to each unit.

[0064] The rear panel of the FW signal source unit has a feeder interface corresponding to the analog simulation terminal and connecting wire, and a fuse base.

[0065] The controller unit of this embodiment realizes the manual and automatic on / off operation of the system and the corresponding instrument indication. The controller unit can simulate some voltage and signal outputs for use in testing, and can simulate the overall structure of the unit 1:1. The controller unit also has a red LED digital tube, a red power switch, and a button. The controller unit has an up and down toggle switch, a circuit board mounting base, a fixed backplane, a simulation model circuit board with an upright layout and can be plugged in and out of the corresponding base, a power board simulation model, a detector unit simulation model, an overload detection unit simulation model, a qualitative coupler model, a number of connecting lines, a speaker, and a signal test interface.

[0066] The SP conversion unit of this embodiment realizes the appearance and interface of the SP conversion unit, and can simulate the regular changes of no filter and logarithmic output.

[0067] The JS coding unit of this embodiment can realize the simulation and test functions of the operation and each test point signal, can simulate part of the voltage, and can simulate the overall structure of the unit 1:1. Its front panel: fixed ring, red indicator light, conventional test port, flat test port, up and down toggle switch, 4-speed knob, 18-speed knob, measuring instrument, and handle with locking switch.

[0068] The JL device unit of this embodiment can realize the simulation and test functions of operation and each test point signal, can simulate part of the voltage, and can simulate the overall structure of the unit 1:1. The front panel of the JL device unit has a fixed ring, a test meter, a 7-speed knob, and a test port. The internal structure of the JL device unit has a PL synthesizer metal square box, a 10W amplifier metal square box, a 60W amplifier square box, a coding control unit, and a combination unit metal square box. There are 3 units built in the metal square box. There is an adjustment port on the top of the metal square box, an up and down toggle switch, 5 red indicator lights, 4 test ports, 2 power boards, 4 voltage-stabilizing capacitors, and several connecting wires.

[0069] The rear panel has 4 feeder interfaces, corresponding 4 simulated wiring heads and connecting wires, and 2 fuse bases.

[0070] The GF cabinet of this embodiment can realize the operation and corresponding instrument indication, the simulation of the test point signal, the voltage of the simulated power supply part, and can simulate the overall structure of the unit 1:1. The casing of the GF cabinet is a steel plate sprayed with anti-rust paint on the outside of the cabinet metal frame. The front panel, rear panel, left and right side panels are fixed and removable by screws. The front panel is divided into three parts: upper, middle and lower. The upper panel has a hole for installing a voltmeter, an ammeter, a two-color indicator light, a 9-speed knob, and 9 test ports. The middle and lower parts are fixed to the frame by 4 screws each, and 20 black characters are sprayed. The GF cabinet has a voltage-stabilized power supply, a noise filter, a relay, a terminal block, 1KWGF4 matching heat sinks, a power synthesis board, an SP relay, a power driving stage, a 180W modulation amplifier, a power distribution board, a cooling fan, a directional coupler, and a transceiver switch. The rear panel has a timer, a fuse seat, a feeder interface, and black characters are sprayed. The above components can be embodied in the form of model simulation.

[0071] The switchboard of this embodiment can realize the power supply control of the 220V mains input machine power cabinet, the mains voltage indication, and can simulate the overall structure of the unit 1:1. The front panel of the switchboard has an air switch, a voltmeter, and a three-hole socket.

[0072] The arrester model of this embodiment can be a DBQ-I single-phase power arrester. The selectable flow rate is: 20KA, 40KA, 60KA, 80KA.

[0073] In this embodiment, the main control machine is configured with simulation software for implementing power teaching and practical training, which can drive the operation of the simulation control cabinet, realize the teaching and practical training functions of the system, manage practical and theoretical assessments, manage students and grades, etc., realize overall monitoring of the simulator, and realize the assessment issuance function of each subject and account management function, mainly including the issuance of operation and use subjects, troubleshooting subjects, etc.

[0074] In order to enrich the teaching and practical training effects, the main control machine also has virtual training software, which realizes teaching and practical training based on virtual reality and computer simulation technology. During the execution process, the main control machine collects data and manipulates the data with the user, performs simulation and solves, and then sends back the solved data. It also collects the hardware manipulation data of the simulation host cabinet and sends it to the main control machine through the network. The main control machine can control the operation of the corresponding indicator light and change the performance status of the indicator light.

[0075] Optionally, the system builds an entire three-dimensional virtual teaching and training environment; it simultaneously realizes fault simulation and operation process teaching; the fault simulation can realistically reproduce the phenomenon of fault occurrence, facilitating virtual maintenance training of personnel; it can also realize practical assessment and theoretical assessment functions.

[0076] As a virtual training method, the main control machine is configured with simulation solution data to show the corresponding phenomenon to the trainees. The three-dimensional virtual training assessment uses its powerful graphics processing capabilities and flexible renderer to create realistic support scenes, providing users with a fine and high-fidelity visual experience. The three-dimensional structure of a certain type of equipment is highly realistic, and business processes such as simulation operation and troubleshooting are simulated.

[0077] According to the embodiments of the present application, virtual training can be composed of virtual training software and a trainee platform (provided by Party A), which are deployed on the main control computer and the trainee platform, and can truly reproduce a certain type of operation training virtual environment. The virtual training subsystem can be combined with the simulation control cabinet for training to achieve virtual and real synchronization. At the same time, it can also be independently run on other computers for pure virtual training.

[0078] The main control computer performs data collection and control, and is also responsible for sending the collected student operation events to the simulation training software for simulation solution, and sending the solution results to the virtual training software and simulation control cabinet to realize the instrument display of operation response and corresponding data.

[0079] Based on the traditional software application architecture, this embodiment splits the system business into more fine-grained services according to their functions. Each of the split services is an independent application that can independently assume the function of external services. The main control machine is connected to the integrated simulation platform in the form of a plug-in, and dynamically registers to provide corresponding business simulation exercise functions. The absence of a simulation component only affects the function provided by the module and will not affect other modules. The entire system can add new simulation components at any time to provide new business exercise functions.

[0080] In this way, the system adopts a combination of virtual training software and simulation control cabinet. Through the data acquisition and control software, the trainee operation events are sent to the simulation training software for simulation solution, and the solution results are sent back to the simulation control cabinet and the virtual training software, thereby realizing the operation response and the instrument display of the corresponding data to support the operation simulation exercises of a certain type of equipment.

[0081] The simulation training software of this embodiment performs real-time simulation calculation based on the set fault parameters, the simulation control cabinet and the operation data of the virtual training software, distributes the corresponding current state to the simulation control cabinet and the virtual training software, and simulates the real operation effect and fault phenomenon. In this way, the main control machine has clear modules and is easy to maintain. It realizes the overall control of the simulator and realizes the functions of various subjects, mainly including operation and use subjects, troubleshooting subjects, signal testing, etc. The main control machine can be configured with WINDOWS7 / WINDOWS10 system. It can check the legitimacy of the user's input parameters and give appropriate prompt information for detected errors.

[0082] As an example, the present invention has multiple training modes, specifically, it can provide three training modes: virtual instructor mode, free practice mode, and subject assessment mode. Among them, the virtual instructor mode helps students complete training tasks through operation guidance, operation prompts, etc.; in the free practice mode, students can conduct any subject training as needed, and can seek help and consult electronic materials at any time during the period; in the subject assessment mode, students conduct designated subject training, and the system records a series of operations of the operator, and the system compares with the correct operation to score, thereby realizing automatic evaluation.

[0083] The virtual instructor mode in this embodiment can be applied to virtual operation training and used for teaching operation guidance of training subjects, that is, each operation step of the training subject has a corresponding operation prompt (including step instructions, highlight display, perspective switching, loading schematic diagram, etc.), and guides the next operation. To facilitate quick learning, the virtual instructor mode also provides a one-button operation demonstration.

[0084] like Figure 5 As shown, the operation process of the virtual instructor mode is: enter the virtual maintenance training scene, in the automatic operation mode, automatically demonstrate all the operation steps, and finally exit the training subject; in the manual mode, complete the operation according to the operation step prompts, and exit the training subject after completing all the operation steps.

[0085] The free practice mode can be applied to practical training and virtual training. Students can conduct personal learning and simulation training according to their own habits. During the training, they can seek help (similar to the virtual instructor mode, providing operation prompts) and consult electronic materials at any time. Figure 6The free practice mode shown is a virtual maintenance training scenario, and then you follow the steps, get scored during the operation, and finally exit the training subject.

[0086] The subject assessment mode in this embodiment is applied to virtual training teaching. After the trainee enters the training assessment, the system records a series of operation sequences of the operator and compares them with a pre-designed operation quantitative evaluation model to achieve automatic evaluation.

[0087] like Figure 7 As shown, the subject assessment mode enters the virtual maintenance training scene, then operates according to the steps, records the operation process, scores the operation process, enters the results and records into the database of the main console, and finally exits the training subject.

[0088] Combined with the above-mentioned training mode, the simulation control cabinet is used to complete projects such as the unification of the simulation control cabinet status and the simulation terminal, simulation of normal and fault signals of key detection points, and simulation replacement of damaged hardware. The extensions of the simulation main cabinet adopt a "drawer-type" design with reference to the actual installed part.

[0089] The simulation control cabinet can adopt a combination of semi-physical and analog simulation, so that students can complete the learning and training of practical subjects on the physical cabinet. After the students operate the physical buttons and switches, the general data acquisition and main control computer collect the data, and the data returned after the solution is displayed in real time, changing the corresponding performance of the indicator light.

[0090] The virtual training software collects the operation events of the simulation control cabinet in real time through the data acquisition and control software, transmits them to the simulation training subsystem for modeling and simulation, and then notifies the relevant background simulation modules through the platform's data subscription and publishing mechanism. Each simulation module performs real-time operation logic and working principle algorithm solution according to the equipment status, and the solution results are then transmitted by each simulation module to the simulation training subsystem for modeling and simulation. Finally, a certain type of simulator training simulation subsystem directly drives the model motion animation and light instrument status update display according to the simulation solution results. It supports the switch knob interactive function, and displays the status of the switch buttons in the simulation host cabinet, the screen data of each display, the status of the light, etc. in real time. The 3D virtual cabinet model will synchronize the status to ensure that the status of the simulation control cabinet is consistent with the status of the 3D virtual cabinet model.

[0091] As for the switch-knob interaction method involved in the present invention, the switches and buttons in the operation process simulation can interact during the training process. The trainees can directly perform physical operations on the simulation control cabinet, or realize interaction by clicking buttons / switches / knobs with the mouse. In the engine, clicking an object with the mouse will cause a collision, and the ray detection module will determine whether the object is clicked; the trainees need to perform a certain sequence of operations according to the subject training needs, and the interactive data processing module records the steps of these operations and feeds the data back to the XX simulation subsystem in real time for simulation calculation. The interactive data processing module will also issue motion state instructions according to the type of clicked component; the animation motion module plays the corresponding animation according to the instructions issued by the interactive data processing module. The animation of the button is generally expressed as the movement of the position, and the animation of the switch and knob is expressed as a rotation of a certain angle.

[0092] As for the switch and knob state synchronization method involved in the present invention, the switches and buttons in the operation process simulation synchronize the hardware states in real time during the training process. Trainees operate the actual buttons / switches / knobs, etc., and feed back the data to the simulation subsystem in real time for simulation calculation. The actual data processing module will also issue motion state instructions according to the type of the operated component; the animation motion module plays the corresponding animation according to the instructions issued by the interactive data processing module. The animation of the button is generally expressed as the movement of the position, and the animation of the switch and knob is expressed as the rotation of a certain angle.

[0093] This embodiment also involves lighting status synchronization. The equipment lights in the operation process simulation synchronize the hardware status in real time during the training process. Trainees operate actual buttons / switches / knobs, etc. to feed back data in real time to the XX simulation subsystem for simulation calculations. The actual data processing module issues lighting status instructions based on the settlement results, and the lighting master control machine modifies the lighting status according to the instructions issued by the interactive data processing module.

[0094] Students practice the operation and use steps of each subsystem. The screen can also synchronously display the effects of equipment, switches, etc. involved in the operation process to help students understand the direction and principles of the power-on process.

[0095] This embodiment also involves troubleshooting, which enables the college to have troubleshooting capabilities, to be able to set faults and simulate corresponding fault phenomena, the fault phenomenon display method is consistent with the actual equipment, and troubleshooting operation guidance is provided. It supports troubleshooting operations through physical operations on simulated control cabinets and through human-computer interaction in virtual scenes. The interaction method and interaction response are consistent with the actual installation.

[0096] The specific implementation method is that after the fault subject is issued, the fault module forwards the fault code of the subject to the simulation subsystem, the simulation subsystem JS fault code data and solves it, and then sends the fault phenomenon data to the troubleshooting simulation module. The troubleshooting simulation module will parse the data and simulate the fault phenomenon of the subject after initialization for trainees to train. All operation data of the trainees during the troubleshooting process will be recorded and transmitted to the XX simulation subsystem in real time through data. The simulation subsystem judges whether the troubleshooting process is accurate through the operation data.

[0097] This embodiment also involves the simulation of inspection-type fault operations, mainly for some signal inspection-type fault operations, simulating the signal output of the corresponding faulty parts in the simulation control cabinet, performing signal detection through signal detection equipment, obtaining signal output information, judging the operating status and fault status of the equipment, clarifying the cause of the fault, finding the corresponding faulty parts, and performing troubleshooting operations by replacing the faulty parts. The XX simulation subsystem will obtain the status of the simulation control cabinet in real time and judge the fault status, provide real-time feedback on the troubleshooting process, and update the fault status through the device status display of the simulation control cabinet.

[0098] The simulation of part replacement fault operations in this embodiment is for some part replacement fault operations. The corresponding faulty parts support part replacement in the simulated control cabinet. For the parts that need to be replaced, a set of faulty parts and a set of standard parts are designed and manufactured. The faulty parts and standard parts are consistent in appearance and are distinguished by internal coding. The simulation subsystem will obtain the status of the faulty parts in the simulated control cabinet in real time and judge the fault status, provide real-time feedback on the troubleshooting process, and update the fault status through the equipment status display of the simulated control cabinet.

[0099] Through the above-mentioned troubleshooting training function, the main console can be used to set the fault first, which is divided into two sub-menus: fault demonstration and troubleshooting. The fault demonstration sub-module can realize the simulation demonstration of common faults of a certain type of simulator equipment in the software, such as power-on fault, display system fault, transceiver system fault, control system fault and other common fault phenomena, and can be displayed with text, voice, animation, etc. to perform elimination simulation training and gradually eliminate the fault according to the system GJ prompt.

[0100] The above method can also be used to produce a 3D model, which will be completely based on the business needs of a certain type of actual installation structure, equipment composition, training scenario, etc., to achieve comprehensive coverage of the 3D model. The realism of the model can be used to identify the appearance structure of each part, mainly to identify the name of the cabinet and the name of each cabinet extension.

[0101] The 3D modeling process imports the cabinet outline into the 3D modeling software 3dMax for trimming and adjustment, and reconstructs and optimizes some details to make them closer to the actual installation state. For some components inside the cabinet that are not convenient for 3D reverse reconstruction and scanning, reference photos are used for modeling, and the pictures are attached to the 3D model as textures to obtain a 1:1 virtual model. In order to better show the realism of the model close to the real machine, the model needs to be imported into the model rendering software Vray for rendering.

[0102] By simulating the XX position and each cabinet's three-dimensional modeling, a three-dimensional training scene is constructed, and roaming operations are performed in the three-dimensional scene from a first-person perspective.

[0103] Optionally, the three-dimensional models of the XX position and each cabinet are imported into a virtual reality engine for rendering to construct a three-dimensional training ground, providing a first-person perspective roaming function, using WASD to move forward, backward, left, and right, and holding down the right mouse button to slide left and right to rotate the perspective.

[0104] The accessory recognition function of this embodiment supports 360° rotation of the model, zoom viewing, and cabinet model structure decomposition, and uses text, voice reminders, and video demonstrations to assist students in learning about cabinet styles and functions.

[0105] This embodiment establishes realistic three-dimensional modeling with a model granularity down to the level of each cabinet extension, renders the model through a virtual reality engine, presents the cabinet model structure in three dimensions, supports structural decomposition and introduction of local cabinet equipment through mouse clicks, and 360° rotation and scaling of the equipment model through mouse sliding, and is equipped with text, voice prompts, and video explanations to assist learning.

[0106] In this way, students can choose a certain equipment structure for training. This system can realize the equipment explosion function, and assist teaching with text, voice, animation, video, etc., to ensure that students can intuitively understand the detailed information of each component and greatly improve learning efficiency.

[0107] The virtual training software of this embodiment supports two modes: theoretical assessment and practical assessment. The theoretical assessment function can use the question bank to assess the trainees' equipment theoretical knowledge and give scores, and supports the question bank and the import and export functions of the trainees' scores. The practical assessment function can make a comprehensive assessment based on the trainees' operation status, training subject completion status, training time and other assessment indicators recorded by the recording module. Among them, the practical assessment function can make a comprehensive assessment of the trainees' scores based on the trainees' operation status, training subject completion status, training time and other assessment indicators recorded by the recording module after the trainees have been assessed, and upload them to the main control machine for operations such as exporting and importing tables.

[0108] The instructor can extract test questions from the test question bank through the main control computer and distribute them to the student computers. After the student computer JS receives the test question assessment information, it will enter the test question assessment interface and start answering the questions. After the student finishes answering the questions and clicks the submit button, the assessment information will be sent to the instructor's host. The instructor will process and analyze the assessment information and record it, conduct a comprehensive assessment of the student's operation status, completion of training subjects, training time and other indicators, give the assessment results, and store the results.

[0109] The content of the theoretical knowledge test in this embodiment is generated by a question bank made based on relevant materials such as the equipment's technical manual, maintenance manual and training manual. After the test is completed, the students will be shown the test results and can check the wrong test questions in the test.

[0110] The following is an embodiment of the electric power teaching and practical training method provided by the embodiments of the present disclosure. The method and the electric power teaching and practical training simulation system of the above-mentioned embodiments belong to the same inventive concept. For details not described in detail in the embodiments of the electric power teaching and practical training method, reference can be made to the embodiments of the above-mentioned electric power teaching and practical training simulation system.

[0111] The teacher sends training tasks to each student computer through the main control computer. The students connect the student computers to the simulation control cabinet to perform physical operations or operate the virtual cabinet in a three-dimensional virtual scene to realize process simulation training. The virtual cabinet and the simulation control cabinet will synchronize their status in real time.

[0112] In the method, the teacher issues training tasks through the main control computer, and the students use the student computers to learn the parts in the three-dimensional virtual scene. The method supports the students to perform three-dimensional roaming in the three-dimensional virtual scene and learn through text, voice reminders and videos. The teacher controls the training process through the main control computer and summarizes and comments on the final training results.

[0113] The method also includes: the teacher extracts the test questions through the main control computer and sends them to the student computer for test training, the student answers the test through the student computer, and the teacher records the operation status of the student computer, the completion status of the training subjects, and the training time through the main control computer and makes a comprehensive judgment to give a score.

[0114] As for the method of the present invention, the main control machine is responsible for controlling and managing the overall operation process of the system. After the training system is started, the main control machine quickly completes the system initialization by reading the configuration file; before the training starts, the training task is set and the task is issued; during the training process, the training process is uniformly controlled, and the system operation status is controlled and managed. Faults can be set and issued, and tasks for troubleshooting can be issued; after the training is completed, the operation data will be recorded and stored, and the training and assessment conditions of the trainees will be uniformly managed to facilitate the analysis and evaluation of the overall training effect.

[0115] As an implementation process of this embodiment, after the system is started, the main control machine will automatically read the system configuration file, quickly complete the system initialization and function loading of each functional module, and ensure that the system quickly enters the running state.

[0116] Before the training begins, the task settings are performed through the main control computer, including the training subject settings and training mode settings.

[0117] (1) Training subject setting;

[0118] The main control unit will read the training subject content according to the configuration file and display it on the software interface. The training content includes operation and use subjects, troubleshooting subjects and signal testing subjects. The interface is designed with a hierarchical structure and provides a search function, which can quickly find specific training subjects and make settings.

[0119] (2) Training mode settings;

[0120] The main control machine can select the training mode, including virtual instructor mode, free practice mode and subject assessment mode. According to different training needs, the corresponding training mode can be selected for targeted training. After selecting the training mode, the main control system will issue the training task as a whole and start the training task.

[0121] After the training starts, the master machine can control the system training status, including system startup / shutdown, restart, pause and termination.

[0122] (3) System startup / shutdown;

[0123] During the training process, the main control machine can control the startup and shutdown of the training system, making it easy to start and end training with one click, thereby improving the operating efficiency of the system.

[0124] (4) Restart, suspend and terminate;

[0125] During the training process, the main control machine can restart, pause and terminate the training system at will, which is convenient for teaching and analyzing key operations during the training process and improving the training effect.

[0126] The main control unit will read the fault information according to the configuration file and display it on the software interface. By setting the fault of the training system, fault troubleshooting training is carried out. The fault setting content includes the fault phenomenon setting and the fault cause setting.

[0127] (5) Fault phenomenon setting;

[0128] The master controller will display the fault phenomenon in the form of a list according to the configuration information, and provide a search function to facilitate quick search for fault information and settings.

[0129] (6) Fault cause setting;

[0130] The main control machine determines the troubleshooting content by setting the fault phenomenon and the corresponding fault cause. After the setting is completed, the main control machine will send the fault information, and the simulation training subsystem and virtual training system will simulate the fault phenomenon and perform troubleshooting operations.

[0131] The main control machine will record the operation data of the simulation training subsystem during the training process. After the training, the operation data and assessment results will be stored. At the same time, the assessment results of the virtual training system will be uniformly acquired and stored.

[0132] (7) Operation data records;

[0133] During the training process, the main control unit will record the operation data of the simulation subsystem in real time and display it in the interface. By viewing the operation data, you can quickly check the training status and evaluate the training effect.

[0134] (8) Assessment results management;

[0135] After the training is completed, the master control unit will uniformly obtain the assessment results of the simulation subsystem and the three-dimensional virtual assessment subsystem through internal network communication, and store and manage them locally. By viewing the assessment data, the overall training situation can be analyzed, and the training plan can be improved according to the training situation to improve the targeted nature of the training.

[0136] Furthermore, as a refinement and expansion of the specific implementation methods of the above-mentioned embodiments, in order to fully illustrate the specific implementation process in this embodiment, another practical training and assessment method is provided. The practical training and assessment method can perform fault simulation and practical training in a simulated control cabinet. Trainees can perform operation training and assessment on switch buttons in a simulated cabinet. The virtual training and assessment system can synchronously display the trainees' operations and synchronize the solution data of the JS master control simulation, and display indicator lights and instrument screens.

[0137] Specifically, the practical training function supports independent practice and practical assessment functions. After connecting to the main control machine, the trainees can choose whether to connect to the hardware and perform virtual-real linkage. The simulated cabinet operation events are collected in real time through the data acquisition and control software, and transmitted to the main control machine for modeling and simulation. Then, the data subscription and publishing mechanism of the main control machine is used to notify the related background simulation modules. Each simulation module will perform real-time operation logic and working principle algorithm solution according to the equipment status. The solution results are then transmitted by each simulation module to a certain type of XX simulation subsystem for modeling and simulation. Finally, the main control machine directly drives the model motion animation, lighting instruments and other status updates and displays according to the simulation solution results.

[0138] This embodiment also involves the linkage between the virtual and the real, so that the virtual training system can be linked and synchronized with the simulation cabinet. When the trainee logs in, he chooses whether to connect the hardware. After the hardware is connected, when operating the simulation cabinet, after the main control simulation is solved, the virtual training system will synchronously update the switch button status, indicator light status, and instrument screen of the simulation cabinet.

[0139] For the fault simulation of this embodiment, all fault subjects required by the training software can be preset, and the trainees can perform troubleshooting training through the fault subjects issued by the main control subsystem, as described in the following tables.

[0140] Table 1 JS unit fault maintenance example

[0141]

[0142] Table 2 FW signal source unit fault repair example

[0143]

[0144]

[0145] Table 3 High frequency signal source fault repair example

[0146]

[0147] Table 4 Control unit fault repair examples

[0148]

[0149] Table 5 JS coding unit fault repair example

[0150]

[0151]

[0152] Table 6 GF cabinet failure maintenance examples

[0153]

[0154] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric power teaching and practical training simulation system, characterized in that: include: Main control machine, switch, multiple student machines, simulation control cabinet, switchboard and lightning arrester; The switch enables communication between the main control computer, each student computer, the switchboard, the lightning arrester, and the teaching and training equipment; The simulation control cabinet includes: a power cabinet and a host cabinet; The main cabinet includes: JS device unit, FW signal source unit, controller unit, SP conversion unit, JS encoding unit, JL device unit and GF cabinet; The main control machine is used to realize driving, practical training control, function conversion, fault simulation, signal generation and control of corresponding equipment. It is also used to obtain teaching and practical training test questions and store them in the test question bank. Based on the teaching and practical training instructions, the main control computer extracts test questions from the test question bank and distributes them to the student computers. After receiving the test questions, the student computers enter the test question assessment interface and answer the questions. After the students finish answering the questions and click the submit button, the assessment information is sent to the main control computer. The main control computer processes, analyzes and records the assessment information, conducts a comprehensive assessment of the student's operation, completion of training subjects, and training time indicators, gives the assessment results, and stores the results.

2. The power teaching and practical training simulation system according to claim 1 is characterized in that: The main control computer and the trainee computer are respectively equipped with virtual training software, so that the main control computer and the trainee computer can realize the virtual simulation operation of the system based on virtual reality and computer simulation technology, and build the entire three-dimensional virtual teaching and training environment; Virtual training software also enables fault simulation and operation process teaching. Fault simulation can truly reproduce the phenomenon of fault occurrence. Realize practical assessment and theoretical assessment functions; The main control machine collects the hardware operation data of the simulation control cabinet and controls the operation of the corresponding indicator lights.

3. The power teaching and practical training simulation system according to claim 1 or 2, characterized in that: The main control computer is also equipped with simulation training software, which performs simulation and solution based on the simulation training software combined with the collected training data, obtains the data of the student machine simulation practice training, performs solution, and outputs the training status data.

4. The power teaching and practical training simulation system according to claim 1 or 2, characterized in that: The main control machine is also equipped with virtual instructor training mode, free practice training mode and subject assessment training mode; The virtual instructor training mode has a virtual instructor training interface, which is used to help trainees complete training tasks through operation guidance and operation prompts; The free practice training mode has a free practice training interface, which allows students to practice any subject as needed, and seek help and consult electronic materials at any time; The subject assessment training mode has a subject assessment training interface, which is used to enable trainees to conduct designated subject training. By recording a series of operations of the operator, the system compares them with the correct operations and scores them, thereby achieving automatic evaluation.

5. The power teaching and practical training simulation system according to claim 1 or 2, characterized in that: The power cabinet is used to realize power supply to the system. The power cabinet has built-in single-phase power filter, leakage protector, terminal board and 2 220V to 48V transformers as backup for each other and used to drive the voltage meter indication; The power cabinet outputs 48V and 220V voltages, has the operation and display of a simulated power cabinet, and simulates the overall structure of a real power cabinet.

6. The power teaching and practical training simulation system according to claim 1 or 2, characterized in that: The JS unit is used to realize the scrolling display of certain parameters and the alarm effect when abnormal, and provide analog voltage and signal output. The JS unit is equipped with a red GJ indicator light, a GJ display window, a red LED digital tube, a test interface, a GJ button, and a lock switch handle; The FW signal source unit is used to realize the simulation display of FW parameters for teaching and practical training, as well as the display effect when the parameters are abnormal, and provides analog voltage and signal output; The controller unit is used to realize manual and automatic on / off operation and corresponding instrument indication, and also realizes GJ prompt and dual-machine conversion function, and provides analog part voltage and signal output.

7. The power teaching and practical training simulation system according to claim 1 or 2, characterized in that: The SP conversion unit is used to provide the appearance and interface of the SP conversion unit, and realize the regular changes of the analog passive cavity filter and the logarithmic output; the SP conversion unit detects the value of the knob, and after calculation by the internal unit, drives the digital quantity or analog quantity interface to provide signal input to other units; The JS coding unit is used to realize the simulation and test functions of the signals of each test point. The JS coding unit drives the digital or analog interface, indicator light and measuring instrument through the signals of the JS trigger switch, switch handle, knob and input test port after calculation by the internal unit.

8. The power teaching and practical training simulation system according to claim 1 or 2, characterized in that: The JL unit is used to realize the simulation and test functions of the signals at each test point. Through the JS knob and the signal of the input test port, after calculation by the internal unit, it drives the digital or analog interface, indicator light and measuring instrument; the JL unit directly outputs the JS external unit instructions; The signal input by the JS knob of the GF cabinet drives the status display of the indicator lights of the voltmeter and ammeter after calculation, and is output through the analog output of the feeder interface.

9. The power teaching and practical training simulation system according to claim 1 or 2, characterized in that: The main control computer controls the entire training process and completes the initialization of training subjects by reading the information of the test question bank; The task setting is completed by selecting the training subject and training mode. After the setting is completed, the subject information is sent to the 3D virtual training assessment system to start the training task; During the training process, you can control the system to start, restart, pause and terminate; During the training process, faults are set and the causes of the faults are specified. After simulation and solution, the simulation training system and the 3D virtual training assessment system display the fault phenomena. The operation process of the system is recorded and saved, and unified data management is performed on the operation status and assessment results of the 3D virtual training system.

10. A method for teaching and practicing electricity, characterized in that: The method adopts the power teaching and practical training simulation system as described in any one of claims 1 to 9; the method comprises: The teacher sends training tasks to each student computer through the main control computer. The students connect the student computer to the simulation control cabinet to perform physical operations or operate the virtual cabinet in a three-dimensional virtual scene to achieve process simulation training. The virtual cabinet and the simulation control cabinet will synchronize their status in real time. In the method, the teacher issues training tasks through the main control computer, and the students use the student computers to learn the parts in the 3D virtual scene, which supports the students to roam in the 3D virtual scene and learn through text, voice reminders and videos. The teacher controls the training process through the main control computer and summarizes and comments on the final training results. The method also includes: the teacher extracts the test questions through the main control computer and sends them to the student computer for test training, the student answers the test through the student computer, and the teacher records the operation status of the student computer, the completion status of the training subjects, and the training time through the main control computer and makes a comprehensive judgment to give a score.

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