Nuclear power plant fire emergency training and drilling system based on VR technology

Abstract

The invention relates to a nuclear power plant fire emergency training and drilling system based on a VR technology. The system comprises a user interaction interface for providing an interaction interface for a user so as to realize related operations of fire emergency training drilling. And the VR head-mounted display and interaction equipment is used for providing immersive virtual environment experience for trainees according to corresponding instructions, and performing motion capture and position tracking on the trainees so as to transmit obtained capture and tracking signals to the multi-terminal interconnection system. And the multi-terminal interconnection system is used for accessing the VR head displays and the interaction devices of one or more trainees so as to realize interconnection of various devices, and applying all the accessed interaction devices to the same fire drill scene based on the fire simulation software so as to perform multi-person fire simulation and emergency drill. And the emergency disposal operation system is in communication connection with the multi-terminal interconnection system and is used for enabling trainees to simulate to use emergency equipment to perform emergency disposal operation through VR head-mounted display and interaction equipment according to the capture and tracking signals.

Description

Technical Field

[0001] The present invention relates to the technical field of fire emergency training and drill, and in particular to a nuclear power plant fire emergency training and drill system based on VR technology. Background Art

[0002] As an important facility for generating electricity using nuclear energy, the development prospects of nuclear power plants are influenced by a variety of factors. With the continuous development of science and technology, the nuclear power industry will continue to promote technological innovation.

[0003] As an important component of clean energy, the safe and stable operation of nuclear power generation is of vital importance. However, once a fire occurs in a nuclear power plant, the consequences will be extremely serious, not only threatening the safety of personnel, but also causing environmental pollution and major economic losses. Artificial firefighting is the last barrier to ensure nuclear safety, while traditional nuclear power plant fire emergency training mostly uses field drills, desktop exercises and simulation devices, which have problems such as high cost and high risk. At the same time, due to the particularity of nuclear power units, the nuclear island cannot be entered during daily operation, resulting in traditional drills being unable to radiate to all scenarios. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a nuclear power plant fire emergency training and drill system based on VR technology in view of the high risk and high cost defects of traditional nuclear power plant fire emergency training.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a nuclear power plant fire emergency training and drill system based on VR technology, comprising:

[0006] A user interaction interface is used to provide an interaction interface for users to implement relevant operations for fire emergency training drills;

[0007] The VR head display and the interactive device are respectively connected to the user interaction interface and the multi-terminal interconnection system in communication, and are used to provide the trainees with an immersive virtual environment experience according to corresponding instructions, and to perform motion capture and position tracking on the trainees, so as to transmit the obtained capture and tracking signals to the multi-terminal interconnection system;

[0008] A multi-terminal interconnection system is used to connect the VR headsets and interactive devices of one or more trainees to interconnect multiple devices, and apply all connected interactive devices to the same fire drill scene based on fire simulation software to conduct multi-person fire simulation and emergency drills;

[0009] The emergency response operating system is communicatively connected to the multi-terminal interconnection system, and is used to enable trainees to simulate the use of emergency equipment to perform emergency response operations through the VR head display and interactive devices based on the capture and tracking signals.

[0010] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, it also includes an intelligent evaluation system that is communicatively connected to the emergency response operating system;

[0011] The intelligent evaluation system is used to obtain and evaluate the training effect according to the drill situation of the emergency response operating system when the trainees perform emergency response operations.

[0012] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the intelligent evaluation system adopts an evaluation algorithm based on a combination of preset rule logic and machine learning and combines manual training effect evaluation.

[0013] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the intelligent evaluation system scores the trainees' drill situation according to the "Fire Scoring Rules" and records the wrong or inaccurate behavior of each trainee; wherein the scoring is divided into operation value, fire value and manual scoring, the operation value is for the operation personnel, the fire value is for the fire brigade personnel, and the manual scoring is for the person in charge of the management to evaluate and score the overall drill process.

[0014] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the related operations include one or more of selecting a training scenario, starting training, and receiving system prompt information and feedback information.

[0015] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the VR head display and interactive equipment include one or more of a VR handle controller, a gesture recognition module, a body tracking module, an eye tracking technology module, a VR motion capture glove and a simulated multi-functional water gun.

[0016] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the fire simulation software constructs a highly simulated fire scene based on the actual situation of the nuclear power plant, and independently sets and selects the fire type, fire scene and fire plot through the user interaction interface.

[0017] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the fire types include oil fires and electrical fires, the fire scenes include nuclear island scenes, pipe gallery scenes and steam turbine scenes, and the fire plots include fire spread plots, smoke diffusion plots and fire extinguishing intervention simulation plots.

[0018] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the emergency response operating system assigns tasks to each person based on the nuclear power plant fire emergency response process, and conducts drills according to a linear process or a nonlinear process.

[0019] Furthermore, in the nuclear power plant fire emergency training and drill system based on VR technology described in the present invention, the multi-terminal interconnection system adopts a local server-based architecture to ensure that trainees from multiple clients are connected to the same virtual environment through the local LAN to conduct multi-person collaborative drills.

[0020] The implementation of the nuclear power plant fire emergency training and drill system based on VR technology of the present invention has the following beneficial effects: the nuclear power plant virtual environment built by the present invention through VR technology is the same as the daily environment of the trainees, which can enable the trainees to experience the development of fire in the daily environment in an immersive way, understand the laws of fire development, and improve emergency response capabilities, effectively improving the authenticity and effectiveness of training, avoiding the high risks and high costs of field drills, and allowing trainees to practice repeatedly in a risk-free environment to improve their skill level. The system can simulate a variety of fire scenes, fire development situations and emergency response situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 It is a structural diagram of a nuclear power plant fire emergency training and drill system based on VR technology provided by an embodiment of the present invention;

[0023] Figure 2 It is a structural diagram of a nuclear power plant fire emergency training and drill system based on VR technology provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the principle flow of a nuclear power plant fire emergency training and drill system based on VR technology provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0026] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0028] refer to Figure 1 In a preferred embodiment, the nuclear power plant fire emergency training and drill system based on VR technology of this embodiment includes a user interaction interface 10, a VR head display and an interactive device 20, a multi-terminal interconnection system 30, a fire simulation software and an emergency handling operating system 40. The VR head display and the interactive device 20 are respectively connected to the user interaction interface 10 and the multi-terminal interconnection system 30 in communication, and the emergency handling operating system 40 is connected to the multi-terminal interconnection system 30 in communication.

[0029] In this embodiment, the communication means mainly utilizes Bluetooth short-range wireless communication technology, which is suitable for connecting devices within a small range. It has the characteristics of low power consumption, low cost, and high security, and can achieve fast and flexible data transmission between devices. Bluetooth operates in the globally used 2.4GHz ISM band, adopts the IEEE 802.15 protocol, and supports communication between multiple devices. Assisted by Wi-Fi, it is suitable for a wider range of scenarios and can provide higher data transmission rates and longer transmission distances. Wi-Fi technology is based on the IEEE 802.11 standard, supports multiple frequency bands and transmission modes, and realizes the interconnection of devices in complex network environments.

[0030] The user interaction interface 10 is used to provide an interactive interface for the user to implement relevant operations for fire emergency training drills. The VR headset and interactive device 20 are used to provide trainees with an immersive virtual environment experience according to corresponding instructions, and to capture the motion and track the position of the trainees, so as to transmit the obtained capture and tracking signals to the multi-terminal interconnection system 30. The multi-terminal interconnection system 30 is used to access the VR headset and interactive device 20 of one or more trainees to interconnect multiple devices, and apply all the connected interactive devices to the same fire drill scene based on the fire simulation software to conduct multi-person fire simulation and emergency drills. The emergency response operating system 40 is used to enable trainees to simulate the use of emergency equipment for emergency response operations through the VR headset and interactive device 20 according to the capture and tracking signals.

[0031] It can be understood that the fire simulation software builds a highly simulated fire scene based on the actual situation of the nuclear power plant, and the fire type, fire scene and fire plot can be independently set and selected through the user interaction interface. Fire types include but are not limited to oil fires, electrical fires, etc. Fire scenes include but are not limited to nuclear island scenes, pipe gallery scenes and steam turbine scenes, etc. Fire plots include but are not limited to fire spread plots, smoke diffusion plots and fire extinguishing intervention simulation plots.

[0032] In this embodiment, the virtual environment of a nuclear power plant built by VR technology is the same as the environment in which trainees live in daily life. It can enable trainees to experience the development of fire in daily environment in an immersive way, understand the laws of fire development, and improve emergency response capabilities. It effectively improves the authenticity and effectiveness of training, avoids the high risks and high costs of field exercises, and allows trainees to practice repeatedly in a risk-free environment to improve their skill level. The system can simulate a variety of fire scenarios, fire development situations, and emergency response situations.

[0033] refer to Figure 2 In some embodiments, the nuclear power plant fire emergency training and drill system based on VR technology in this embodiment further includes an intelligent evaluation system that is in communication with the emergency response operating system. The intelligent evaluation system is used to obtain and evaluate the training effect based on the drill situation obtained by the trainees when performing emergency response operations in the emergency response operating system.

[0034] It can be understood that the intelligent evaluation system uses an evaluation algorithm based on a combination of preset rule logic and machine learning and combines it with manual training effect evaluation. Specifically, the intelligent evaluation system can score the trainees' drills according to the "Fire Scoring Rules" and record the wrong or inaccurate behavior of each trainee. Among them, the scoring is divided into operation value, fire value and manual scoring. The operation value is for the operation personnel, the fire value is for the fire brigade personnel, and the manual scoring is for the person in charge of the management to evaluate and score the overall drill process.

[0035] This embodiment can achieve the following beneficial effects:

[0036] (1) High degree of simulation: The virtual environment of a nuclear power plant built with VR technology is the same as the environment in which trainees are in daily life. It enables trainees to experience the environmental layout of a nuclear power plant and the development of special nuclear fires, understand the laws of fire development, and improve emergency response capabilities, effectively improving the authenticity and effectiveness of training.

[0037] (2) Safe and low-cost: It avoids the high risks and high costs of field drills, allowing trainees to practice repeatedly in a risk-free environment, thereby improving their coordination and cooperation as well as their fire emergency response skills.

[0038] (3) Comprehensive coverage: The system can simulate a variety of fire scenarios, fire development conditions, and emergency response situations, including areas where fires may occur that are inaccessible to personnel during operation, ensuring that trainees can fully understand the environment, equipment layout, fire-fighting attack and retreat routes, and special fire emergency response skills in special areas of the nuclear power plant.

[0039] (4) Intelligent Assessment: Through the intelligent assessment system, trainees are provided with personalized feedback and guidance to help them correct mistakes in a timely manner and improve training results.

[0040] It can be understood that the relevant operations include one or more of selecting a training scene, starting training, receiving system prompt information and feedback information. The VR headset and interactive device include one or more of a VR handle controller, a gesture recognition module, a body tracking module, an eye tracking technology module, a VR motion capture glove and a simulated multi-functional water gun. In some embodiments, the emergency response operating system assigns tasks to each person based on the nuclear power plant fire emergency response process, and conducts drills according to a linear process or a nonlinear process. The multi-terminal interconnection system adopts a local server-based architecture to ensure that trainees from multiple clients are connected to the same virtual environment through a local LAN for multi-person collaborative drills.

[0041] Combination Figure 2 and Figure 3 , the nuclear power plant fire emergency training and drill system based on VR technology of the present invention is further described in detail below.

[0042] The user interaction interface is responsible for providing an interactive interface between the user and the system, enabling the user to select training scenarios, start training, receive system prompts and feedback, and other operations. The user interface should be concise and easy to operate. It can be understood that the user can select the drill mode, drill scene, and drill personnel through the management interface. The drill mode includes multi-person full-process drills, group drills, and single drills; the drill scene includes 5 full-process drill scenes and 6 single-item drill scenes; the drill personnel include fire duty and operation duty members. At the same time, when the drill is in progress, the drill information is returned to the management interface, and the management can observe the drill status of all drill members and display the progress of the overall drill process according to the drill nodes.

[0043] VR headsets and interactive devices provide trainees with an immersive virtual environment experience, including visual, auditory, tactile and other multi-sensory feedback. At the same time, a variety of interactive devices such as VR handle controllers, VR motion capture gloves, simulated multi-functional water guns, etc. are used. The interactive devices include a handle controller module: used to select and operate in a virtual environment, such as grabbing objects, rotating buttons, etc., a gesture recognition module: using cameras or sensors to capture hand movements to achieve a more intuitive and natural interaction method, a body tracking module: using sensors or cameras to track the body movements of trainees to achieve simulation and feedback of full-body movements, and an eye tracking module: by tracking eye movements to capture the trainees' attention focus, and improve the interactivity and authenticity of the virtual environment. In other words, different drill roles experience the scenes of the corresponding roles through VR headsets, including but not limited to: the work area in the initial state, the factory scene rushing to the fire, the fire area, etc. The drill tasks are performed through interactive devices (handles, gloves, treadmills, etc.), including but not limited to: rushing to the fire scene, wearing combat uniforms, performing firefighting tasks, performing rescue tasks, etc.

[0044] The multi-terminal interconnection system can realize the interconnection of multiple devices, and multiple personnel can conduct fire simulation and emergency drills at the same time. In other words, the multi-terminal interconnection system can realize the simultaneous application of multiple devices such as VR headsets, handles, gloves, treadmills, computers, etc. in a fire drill scene. The drill system supports single-person drills and multi-person drills. Multi-person drills support 3-6 people to drill at the same time. It also supports simultaneous drills for fire duty and operation duty personnel.

[0045] The fire simulation software builds highly simulated fire scenes based on the actual situation of the nuclear power plant, and can independently set and select fire scenes and fire plots. The fire types include oil fires and electrical fires. The fire scenes include nuclear island scenes, pipe gallery scenes, steam turbine scenes, etc. It has functions such as fire spread, smoke diffusion, and fire extinguishing intervention simulation. Through VR interactive equipment, trainees of the emergency response operating system can simulate the use of emergency equipment such as fire extinguishers, fire hydrants, multi-function water guns, infrared thermal imagers, etc., to perform emergency response operations such as fire fighting and equipment shutdown. The emergency response operating system also assigns tasks to each person based on the nuclear power plant fire emergency response process, and gives each person a high degree of freedom. Drills can be conducted without following a linear process, which strengthens the subjective initiative of the drillers and conforms to the actual situation. Specifically, the fire simulation software needs to carry out detailed and specific modeling of the interior of the power plant, including the fire building, large plant scene, RX plant, LX plant, MX plant, GB corridor and other areas. The management end can preset fire situations including fire scenes (RX factory, MX factory, LX factory, etc.); fire intensity (no open flame but smoke, open flame but smoke, etc.), and on-site weather conditions (sunny, cloudy, rainy, windy, etc.).

[0046] The fire simulation software is based on an advanced physical simulation engine and fire emergency drill system, which can highly restore various fire scenarios in nuclear power plants. The software supports physical simulation of fire spread and smoke diffusion, and combines the fire emergency drill system and the nuclear power plant simulation DCS system to make the drill process more in line with the operation process of the nuclear power plant. At the same time, it allows trainees to play freely in certain emergency drill plots, improve the trainees' subjective initiative, and enhance the level of emergency response. It also provides data recording and analysis functions to facilitate users to review the drill process and summarize lessons learned.

[0047] The emergency response operating system is a bridge connecting VR interactive devices and fire simulation software. In the emergency response operating system, corresponding virtual models and control logic are designed. For example, when trainees choose to use the virtual DCS system of a nuclear power plant, the system will control the data changes of the virtual related interfaces and the start and stop of the virtual equipment according to the trainees' operations (such as pressing buttons, operating interfaces, etc.), and provide real-time feedback to the fire simulation software. It should be noted that the control logic of this embodiment refers to the interactive properties of each three-dimensional model, such as switches, which role interacts. The virtual model is edited and established through on-site framing, reference to actual drawings, and modeling software. The modeled three-dimensional model is imported through the development engine for data editing and program driving.

[0048] The intelligent assessment system evaluates the trainees' emergency response capabilities based on their operational behaviors and provides feedback and guidance. Based on the "Fire Scoring Rules" document, scoring terms are set in the system, including: whether protective clothing is worn correctly and quickly, speed of arrival, correct use of rescue tools, correct entry into the fire plant, etc. In order to support multi-person collaborative drills, a multi-terminal interconnection system was developed. The multi-terminal interconnection system is based on the architecture of the local server, ensuring that trainees from multiple clients can connect to the same virtual environment through the local LAN. In the system, each trainee has an independent virtual identity and is divided into an operation team and a fire brigade according to the functions of the nuclear power plant. Virtual characters can move, communicate, and operate equipment and facilities freely in the virtual environment. The system also provides real-time communication and recording functions, allowing trainees to communicate with each other by voice, simulating real teamwork scenarios, and ensuring cross-platform compatibility: the multi-terminal interconnection system supports the access of multiple devices, including smartphones, tablets, PCs, etc., to ensure that users of different devices can participate in the drills smoothly. Real-time data synchronization: the system can synchronize the drill data of each device in real time, including personnel location, action, status, etc., to ensure the continuity and accuracy of the drill. Combination of virtual and reality: through VR headsets and other devices, the system can simulate realistic fire scenes, and at the same time combine the sensor data of the real world to achieve a deep integration of virtual and reality. Multi-user collaboration: the system supports multiple users to participate in the drill at the same time, and improves the user's collaboration ability and emergency response speed through virtual characters and team collaboration functions.

[0049] It can be understood that the intelligent assessment system is an important tool for evaluating the emergency response capabilities of trainees. The intelligent assessment system adopts an assessment algorithm based on rule logic and machine learning combined with manual assessment, including the following steps:

[0050] S1: The system will make a preliminary judgment on the trainee's operating behavior based on the preset evaluation criteria, such as whether the trainee checked the alarm information within the specified time, whether the key positions were notified, and whether the isolation and power-off operations were performed correctly.

[0051] S2: The system will use machine learning algorithms to comprehensively evaluate the trainees' emergency response capabilities based on the trainees' operation results and the feedback data from the fire simulation software. At the same time, the drill manager can change some of the scores based on the trainees' dialogue and other performances;

[0052] S3: The evaluation results will be presented to trainees and administrators in the form of charts, text, etc., to help them understand the training effect, identify deficiencies, and make targeted improvements.

[0053] In some other embodiments, in order to ensure the smooth progress of the drill, the system also sets up a management system to allow the drill manager to monitor the drill process in real time and pay attention to the progress of the drill. In addition, the system also supports the simulation operation of various emergency equipment, such as fire hydrants, fire extinguishers, infrared thermal imagers, etc. Each device has its own unique operation mode and application scenario. The system will provide corresponding operation guidance and feedback to the trainees according to the actual situation.

[0054] The entire system provides a highly realistic and interactive fire emergency training environment through the collaborative work of various modules. Personnel can conduct repeated drills and training in this environment to improve their fire emergency response capabilities and safety awareness. At the same time, the system can also provide personalized feedback and suggestions based on the personnel's training data and performance to help personnel continuously improve and enhance. The present invention is based on VR virtual reality technology and can highly restore the three-level fire drill process and scenes of nuclear power plants. It implements VR three-level fire drills for five special fire scenes in nuclear power plants, solving the problem that fire drills in special areas such as control areas during unit operation are difficult to conduct. Through simulation drills, the coordination of drill personnel is enhanced, and the frequency of on-site field drills by operation and fire personnel is reduced, which can save personnel time and drill consumables costs.

[0055] It can be understood that the data center is the core of the entire system, deployed on the server, and is responsible for managing and processing data from various modules. The data center realizes data collection, storage, processing and distribution through standardized data interfaces and protocols. During the data exchange process, each module sends the collected real-time data to the data center via Bluetooth or Wi-Fi, and the data center cleans, aggregates and analyzes the data according to preset rules to ensure the accuracy and availability of the data. Simulation is one of the important functions of the system, which models and simulates the real environment through virtual scenes.

[0056] The construction of virtual scenes is based on 3D modeling technology, which can accurately reproduce the appearance and internal structure of physical devices. Through simulation, the system can dynamically display the operating status of the equipment, such as the movement of mechanical parts and the flow of fluids. The virtual scene receives real data from the hardware module and updates it in real time based on this data. For example, data such as temperature and pressure collected by sensors are transmitted to the data middle platform, which then passes this data to the virtual scene to achieve synchronization between virtual and reality. Three-dimensional presentation is the key link for the system to present virtual scenes to users in an intuitive form. Through advanced 3D rendering technology, the system can display complex equipment and environments in realistic three-dimensional images. This presentation method not only enhances the user's visual experience, but also improves the readability and comprehensibility of data. By building a digital model corresponding to the physical device in the virtual space, real-time mapping of the device status is achieved. The digital twin model can receive real data from the hardware module and bind the data to the model through 3D visualization technology, thereby achieving real-time monitoring and management of the device's operating status. The architecture of the entire system can be divided into three levels: hardware module, data middle platform and virtual scene. The hardware module is responsible for data collection and transmission, the data center is responsible for data processing and distribution, and the virtual scene is responsible for data visualization and simulation. This layered architecture not only improves the flexibility and scalability of the system, but also ensures efficient data circulation and processing. This system architecture is used in the visualization of the drill system. The operating data of the equipment is collected through sensors. After the data center processes the data, the virtual scene displays the operating status in the form of a three-dimensional model.

[0057] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0058] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0059] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, the above technical features can be freely combined without departing from the concept of the present invention, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the coverage of the claims of the present invention.

Claims

1. A nuclear power plant fire emergency training and drill system based on VR technology, characterized in that: include: A user interaction interface is used to provide an interaction interface for users to implement relevant operations for fire emergency training drills; The VR head display and the interactive device are respectively connected to the user interaction interface and the multi-terminal interconnection system in communication, and are used to provide the trainees with an immersive virtual environment experience according to corresponding instructions, and to perform motion capture and position tracking on the trainees, so as to transmit the obtained capture and tracking signals to the multi-terminal interconnection system; A multi-terminal interconnection system is used to connect the VR headsets and interactive devices of one or more trainees to interconnect multiple devices, and apply all connected interactive devices to the same fire drill scene based on fire simulation software to conduct multi-person fire simulation and emergency drills; The emergency response operating system is communicatively connected to the multi-terminal interconnection system, and is used to enable trainees to simulate the use of emergency equipment to perform emergency response operations through the VR head display and interactive devices based on the capture and tracking signals.

2. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 1 is characterized in that: Also included is an intelligent assessment system communicatively connected to the emergency response operating system; The intelligent evaluation system is used to obtain and evaluate the training effect according to the drill situation of the emergency response operating system when the trainees perform emergency response operations.

3. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 2 is characterized in that: The intelligent evaluation system adopts an evaluation algorithm based on preset rule logic and machine learning combined with manual training effect evaluation.

4. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 2 is characterized in that: The intelligent evaluation system scores the trainees' drills according to the Fire Scoring Rules and records the incorrect or inaccurate behaviors of each trainee; the scores are divided into operation values, fire values ​​and manual scores. The operation values ​​are for operation personnel, the fire values ​​are for fire brigade personnel, and the manual scores are for the management person in charge to evaluate and score the overall drill process.

5. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 1 is characterized in that: The related operations include one or more of selecting a training scenario, starting training, and receiving system prompt information and feedback information.

6. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 1 is characterized in that: The VR head display and interactive device include one or more of a VR handle controller, a gesture recognition module, a body tracking module, an eye tracking technology module, a VR motion capture glove and a simulated multi-functional water gun.

7. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 1 is characterized in that: The fire simulation software constructs a highly simulated fire scene based on the actual situation of a nuclear power plant, and independently sets and selects the fire type, fire scene and fire plot through the user interaction interface.

8. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 7 is characterized in that: The fire types include oil fires and electrical fires, the fire scenes include nuclear island scenes, pipe gallery scenes and steam turbine scenes, and the fire plots include fire spread plots, smoke diffusion plots and fire extinguishing intervention simulation plots.

9. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 1 is characterized in that: The emergency response operating system allocates tasks to each person based on the nuclear power plant fire emergency response process and conducts drills according to a linear process or a nonlinear process.

10. The nuclear power plant fire emergency training and drill system based on VR technology according to claim 1 is characterized in that: The multi-terminal interconnection system adopts a local server-based architecture to ensure that trainees on multiple clients are connected to the same virtual environment through the local area network to conduct multi-person collaborative drills.

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