CN110335359B - Distribution board fire accident emergency drilling simulation method based on virtual reality technology - Google Patents
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Abstract
The invention discloses a virtual reality technology-based distribution board fire accident emergency drilling simulation method, which comprises the following steps of: A. establishing a virtual reality scene: B. constructing a virtual accident emergency drilling scene: and (1) designing a spatial UI (user interface): (2) designing UI system interaction: (3) design role/device model interaction: a. making a virtual role model and various individual behavior actions; b. setting an IK animation to complete the construction of an accident emergency drilling scene; C. accessing a virtual accident emergency drilling scene into a VR omnidirectional mobile platform; D. the operator carries out the emergent rehearsal of virtual fire accident through VR qxcomm technology action platform. The invention has the characteristics of high seriousness and authenticity and good training effect, and also has the characteristics of reducing manpower and material resources and not limiting the drilling content.
Description
Technical Field
The invention relates to a fire accident emergency drilling simulation method, in particular to a distribution board fire accident emergency drilling simulation method based on a virtual reality technology.
Background
For a power plant, a distribution board is important equipment in the power plant, during work of the power plant, the distribution board is often in contact with electric appliances, instruments and the like because wiring of the distribution board is not firm, selection of parts in the distribution board is not consistent with actual capacity of the distribution board, fire accidents are caused due to long-term overload operation and the like, the fire accidents caused by the distribution board account for a large proportion of the fire accidents of the power plant, and therefore emergency training of the power plant for the accidents of the distribution board is important. The existing emergency training of fire accidents generally comprises two modes. One method is to carry out classroom instruction or desktop exercise through some accident plans, wherein part of the accident plans uses a two-dimensional plane electronic map for training, but most of the accident plans still use characters and tables for description, and the serious consequences of accident enlargement caused by improper treatment cannot be realized, so that the accident emergency handling capability of operation and maintenance personnel of the power plant cannot be well improved, and the training effect is not ideal; the other mode is actual combat drilling, which is highly targeted and easy to find out problems, but needs to consume certain manpower and material resources, and the drilling content has great limitations.
Therefore, the existing emergency drilling mode for fire accidents adopts classroom instruction or desktop drilling, which has the problems of lack of seriousness and authenticity and not ideal training effect, and adopts actual drilling, which has the problems of manpower and material resource consumption and limited drilling content.
Disclosure of Invention
The invention aims to provide a power distribution panel fire accident emergency drilling simulation method based on a virtual reality technology. The invention has the characteristics of high seriousness and authenticity and good training effect, and also has the characteristics of reducing manpower and material resources and not limiting the drilling content.
The technical scheme of the invention is as follows: a distribution board fire accident emergency drilling simulation method based on a virtual reality technology comprises the following steps:
A. establishing a virtual reality scene;
B. constructing a virtual accident emergency drilling scene: designing character operation processes and animations of the equipment models in the virtual reality scene, and constructing different accident emergency drilling scenes according to the position of a fire point, the size of the fire situation and a processing mode; the method comprises the following steps:
(1) Designing a spatial UI (user interface): defining a spatial reference system in a virtual reality scene, and placing a UI (user interface) in the spatial reference system to ensure the comfort of a user in watching the UI;
(2) Designing UI system interaction: designing a UI key collision event to achieve the purpose of interacting with a UI system;
(3) Design role/device model interaction:
a. making a virtual character model and various individual behavior actions, realizing the simulated motion of the virtual character, and completing action animations needing real-time control;
b. setting an IK animation, controlling and influencing the motion of body parts by using various object devices in a virtual reality scene, realizing interactive animation of a virtual character model and the object devices, and completing construction of an accident emergency drilling scene;
C. accessing a virtual accident emergency drilling scene into a VR omnidirectional mobile platform;
D. the operator carries out the emergent rehearsal of virtual fire accident through VR qxcomm technology action platform.
In the method for simulating the fire accident emergency drilling of the distribution board based on the virtual reality technology, the step a of establishing the virtual reality scene includes:
(1) Collecting real spatial structure data;
(2) Constructing a three-dimensional model of the power station and a character model of operation and maintenance personnel of the power station;
(3) And constructing a virtual reality scene of the power station.
In the method for simulating the emergency drilling of the fire accident of the distribution board based on the virtual reality technology, the step a of constructing the three-dimensional model of the power station and the character model of the operation and maintenance personnel of the power station specifically comprises the step of constructing the three-dimensional model of the power station and the character model of the operation and maintenance personnel of the power station by using point cloud data by using a reverse modeling means.
In the above method for simulating the emergency drilling of the fire accident of the distribution board based on the virtual reality technology, in the step B, the spatial reference system is defined by using the head as the reference system, the trunk as the reference system, and the virtual world as the reference system.
In the foregoing method for simulating emergency drilling of fire accident of distribution board based on virtual reality technology, in the step B, the specific operation of placing the UI interface in the spatial reference system is to calculate the most suitable angle of view when the human body is kept still and only the eyes are rotated for observation, and when the human eyes are kept still and only the head is rotated for observation, integrate the data of the angles of view, determine the area that the human eyes see most comfortably in the virtual reality environment, and design the layout of the UI interface in the area to ensure that all the UI interfaces are clearly visible, and the UI interface is always in the comfortable range no matter how the head of the user rotates.
In the foregoing method for simulating an emergency drilling of a fire accident of a distribution board based on a virtual reality technology, in the step B, the interaction of the UI system is specifically designed to be a UI key collision event, so as to achieve the purpose of interacting with the UI system, and the method includes the following steps:
a. adding a BoxCoolder to a UI control in the UI interface, setting the Size attribute of the BoxCoolder to ensure that the Size of the BoxCoolder Is consistent with that of the control, and setting the IS Trigger attribute of the BoxCoolder to true;
b. writing a code file, processing the collision event, and assigning the code file to a corresponding UI control.
In the virtual reality technology-based distribution board fire accident emergency drilling simulation method, in the step B, the step a of designing role/equipment model interaction specifically includes adjusting a character model of a power station operation and maintenance worker, simulating a real image of a hydropower station worker, and establishing a virtual role model; and designing an animation controller, creating various individual behavior actions, fitting the virtual character model and the individual behavior actions, realizing the simulated motion of the virtual character, and finishing the action animation needing real-time control.
In the above method for simulating an emergency drilling of a fire accident of a distribution board based on a virtual reality technology, the step D specifically includes: the operator reads the emergent rehearsal scene of virtual accident through wearing the virtual reality equipment among the VR omnidirectional action platform, carries out the emergent rehearsal of virtual accident that catches fire in the virtual reality rehearsal scene.
In the distribution board fire accident emergency drilling simulation method based on the virtual reality technology, the step D further includes that the VR omnidirectional mobile platform feeds back operation information to an operator in the virtual fire accident emergency drilling, and the operator adjusts the operation according to the fed back operation information and outputs the operation action information to the VR omnidirectional mobile platform.
In the distribution board fire accident emergency drilling simulation method based on the virtual reality technology, the VR omnidirectional mobile platform comprises a position tracker, a handle and glasses, the glasses feed back visual information to an operator, the handle feeds back action information to the operator, and operation action information output by the operator is fed back to the position tracker and the handle.
Compared with the prior art, the method has the advantages that through establishing the virtual reality model and the virtual reality drilling scene of the real power station with high fidelity, an operator wears the virtual reality helmet, namely puts the virtual reality helmet in the virtual reality scene of the power station, and formally carries out emergency response drilling and command training of fire accidents in the three-dimensional virtual reality scene, so that the emergency handling capacity of the operation and maintenance personnel of the power plant is improved, and the training effect is good; the operation and maintenance personnel can carry out emergency drilling of the fire accident of the distribution board in the virtual environment without the limitation of time, space and content, the training efficiency is improved, and manpower and material resources are reduced. Through using VR qxcomm technology action platform, break the space barrier of virtual reality scene, solved in the virtual reality environment because of the dizzy sense that the space information inconsistency production that health and eyes received can correctly received signal and processing information, experience is effectual, reacts really, nimble, serious, can not cause the injury to the human body, makes things convenient for the fortune dimension personnel to train.
Therefore, the invention has the characteristics of high seriousness and authenticity and good training effect, and also has the characteristics of reducing manpower and material resources and not limiting the drilling content.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Examples are given.
A distribution board fire accident emergency drilling simulation method based on a virtual reality technology comprises the following steps:
A. establishing a virtual reality scene:
(1) Collecting real space structure data of a hydropower plant factory building and factory building equipment on a hydropower station site through mapping, such as a three-dimensional laser scanner;
(2) Using a reverse modeling means, constructing a three-dimensional model of the power station and a character model of operation and maintenance personnel of the power station in RiSCAN PRO and 3dsMax by using real space structure data acquired by a three-dimensional laser scanner;
(3) Importing the three-dimensional model of the power station into a Unity3D game engine to construct a virtual reality scene of the power station;
B. constructing a virtual accident emergency drilling scene: designing a role operation flow and animation of an equipment model in a virtual reality scene according to a switchboard ignition emergency treatment manual, a standard and a treatment flow of a power plant, a record document of a previous accident and the actual experience of a treating person; according to the position of a fire point, the size of a fire situation and a processing mode, different accident emergency drilling disposal scenes are constructed, and a processing flow is really restored; the method comprises the following steps:
(1) Designing a spatial UI (user interface):
a. defining a spatial reference system: defining a spatial reference system in a virtual reality scene, and adopting a head as the reference system, wherein an interface moves along with the head of a user; the interface rotates and translates along with the body by taking the trunk as a reference system; taking a virtual world as a reference system, and placing a UI (user interface) in a world space which is beneficial to a user to observe;
b. placing a UI interface: the UI interface is placed at a proper position in a spatial reference system by utilizing ergonomic information, so that the comfort of a user in watching the UI interface is ensured. The method comprises the specific steps of calculating the most suitable angle of view when a human body keeps still and only eyes rotate to observe, and the most suitable angle of view when human eyes keep still and only heads rotate to observe, integrating the angle of view data, determining the area seen by the human eyes under the most comfortable condition in the virtual reality environment, designing UI (user interface) layout in the area, and ensuring that all UI interfaces are clear and visible through repeated tests, and the UI interfaces are always in the comfortable range no matter how the head of a user rotates;
(2) Designing UI system interaction: designing a UI key collision event, and performing collision detection with a UI key to achieve the purpose of interaction with a UI system, wherein the method comprises the following steps:
a. adding a BoxCoollider to a UI control in the UI interface, setting the Size attribute of the BoxCoollider to make the Size of the BoxCoollider consistent with that of the control, and setting the IS Trigger attribute of the BoxCoollide to be true;
b. writing a code file, processing a collision event, and assigning the code file to a corresponding UI control;
(3) Design role/device model interaction:
a. importing a character model of a power station operation and maintenance worker into unity3d, adjusting a texture map of the character model, simulating the real image of a hydropower station worker, and establishing a virtual character model; the human skeleton is optimized based on the skeleton covering technology, an animation controller is designed, the skeleton node positions and the skeleton turning directions of all key frames are manually adjusted, the individual behavior actions such as running, walking and waiting are created as animation segments, the established virtual character model and the corresponding animation segments are led into a material library, the virtual character model and the individual behavior actions are fitted, therefore, the simulated motion of the virtual character is realized, and the individual behavior actions which need to be controlled in real time are completed.
b. Setting an IK animation, driving a skeleton father node through a skeleton child node, and controlling and influencing the motion of a body part by using various object devices in a virtual reality scene; the codes are used for dynamically calculating the play of the rotation control animation of each father joint according to the position movement of the terminal child joint, so that the virtual character is more attached to the virtual reality scene, a more real virtual reality experience effect is achieved, and the interaction animation of the virtual character model and the object equipment can be realized, such as the taking of a fire extinguisher and the like. And finishing the construction of the virtual accident emergency drilling scene.
C. Accessing a virtual accident emergency drilling scene into a VR omnidirectional action platform; the VR omnidirectional mobile platform adopts a KAT WALK virtual reality mobile platform. The VR omnidirectional mobile platform breaks the gap between reality and virtual, only one square meter of real space is needed, an infinite virtual world can be provided for a user, the limitation of the field size is avoided, and a compromised unnatural moving mode is not needed, so that the actions of walking, running and the like of the user can be mapped into a virtual scene on the premise of ensuring absolute safety, the visual motion state is consistent with the actual body motion state of the user, and the user can feel shocked when the motion sickness is solved.
D. The operator reads the emergent rehearsal scene of virtual accident through wearing the virtual reality equipment among the VR omnidirectional action platform, carries out the emergent rehearsal of virtual accident that catches fire in the virtual reality rehearsal scene, and in the emergent rehearsal of virtual accident, VR omnidirectional action platform feedbacks operating information to the operator, and the operator adjusts the operation according to the operating information who feeds back to VR omnidirectional action platform output operation action information. The VR omnidirectional action platform comprises a position tracker, a handle and glasses, visual information is fed back to an operator through the glasses in a three-dimensional virtual accident emergency drilling scene, action information is fed back to the operator through the handle in UI/role/equipment model interaction processing, the operator adjusts own operation according to the feedback information, the output action information is fed back to the position tracker and the handle, and the position tracker and the handle are fed back to the UI/role/equipment model interaction processing.
Claims (8)
1. A distribution board fire accident emergency drilling simulation method based on a virtual reality technology is characterized by comprising the following steps: the method comprises the following steps:
A. establishing a virtual reality scene;
B. constructing a virtual accident emergency drilling scene: designing character operation processes and animations of the equipment model in the virtual reality scene, and constructing different accident emergency drilling scenes; the method comprises the following steps:
(1) Designing a spatial UI interface: defining a space reference system in a virtual reality scene, adopting a head as a reference system, a trunk as a reference system and a virtual world as a reference system, placing a UI (user interface) in the space reference system, calculating the most suitable angle of view when a human body keeps still and only eyes rotate to observe, calculating the most suitable angle of view when the human eyes keep still and only the head rotates to observe, integrating the angle of view data, determining the area which is seen under the most comfortable condition of the human eyes in the virtual reality environment, designing a UI layout in the area, ensuring that all the UI interfaces are clearly visible, and always being in a comfortable range no matter how the head of a user rotates the UI interface;
(2) Designing UI system interaction: designing a UI key collision event to achieve the purpose of interacting with a UI system;
(3) Design role/device model interaction:
a. making a virtual character model and various individual behavior actions, realizing the simulated motion of the virtual character, and finishing the action animation needing real-time control;
b. setting IK animation, and realizing interaction animation of the virtual character model and the object equipment by utilizing various object equipment in a virtual reality scene to control and influence the motion of body parts;
C. accessing a virtual accident emergency drilling scene into a VR omnidirectional mobile platform;
D. the operator carries out the emergent rehearsal of virtual accident of catching fire through VR qxcomm technology action platform.
2. The virtual reality technology-based distribution board fire accident emergency drilling simulation method according to claim 1, characterized in that: the step A of establishing the virtual reality scene comprises the following steps:
(1) Collecting real spatial structure data;
(2) Constructing a three-dimensional model of the power station and a character model of operation and maintenance personnel of the power station;
(3) And constructing a virtual reality scene of the power station.
3. The distribution board fire accident emergency drilling simulation method based on the virtual reality technology according to claim 2, characterized in that: the step A of constructing the three-dimensional model of the power station and the character model of the operation and maintenance personnel of the power station is to construct the three-dimensional model of the power station and the character model of the operation and maintenance personnel of the power station by using point cloud data by using a reverse modeling means.
4. The distribution board fire accident emergency drilling simulation method based on the virtual reality technology according to claim 1, characterized in that: in the step B, designing the interaction of the UI system specifically includes designing a UI key collision event to achieve the purpose of interacting with the UI system, and includes the following steps:
a. adding a BoxClider to a UI control in the UI interface, setting the Size attribute of the BoxClider to make the Size of the BoxClider consistent with that of the control, and setting the IS Trigger attribute of the BoxClider to be true;
b. writing a code file, processing the collision event, and assigning the code file to a corresponding UI control.
5. The distribution board fire accident emergency drilling simulation method based on the virtual reality technology according to claim 1, characterized in that: in the step B, the step a of designing role/equipment model interaction specifically comprises the steps of adjusting a character model of a power station operation and maintenance worker, simulating a real image of a hydropower station worker, and establishing a virtual role model; designing an animation controller, creating various individual behavior actions, fitting the virtual character model and the individual behavior actions, realizing the simulated motion of the virtual character, and finishing the action animation needing real-time control.
6. The virtual reality technology-based distribution board fire accident emergency drilling simulation method according to claim 1, characterized in that: the step D specifically comprises the following steps: the operator reads the virtual accident emergency drilling scene by wearing the virtual reality equipment in the VR omnidirectional action platform, and carries out the virtual fire accident emergency drilling in the virtual reality drilling scene.
7. The distribution board fire accident emergency drilling simulation method based on the virtual reality technology according to claim 6, wherein: and step D, in the emergency drilling of the virtual fire accident, the VR omnidirectional action platform feeds back operation information to an operator, the operator adjusts the operation according to the fed-back operation information, and the operation action information is output to the VR omnidirectional action platform.
8. The virtual reality technology-based distribution board fire accident emergency drilling simulation method according to claim 7, wherein the method comprises the following steps: VR omnidirectional action platform includes position tracker, handle and glasses, and glasses feed back visual information to the operator, and the handle feeds back action information to the operator, and the operation action information feedback that the operator exported is to position tracker and handle.
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| CN111552382B (en) * | 2020-04-24 | 2023-10-13 | 北京中电智博科技有限公司 | VR (virtual reality) compressed natural gas tank car accident handling teaching decision method, device and equipment |
| CN111580648A (en) * | 2020-04-24 | 2020-08-25 | 岭东核电有限公司 | Simulation drilling method and device based on virtual reality |
| CN112528498A (en) * | 2020-12-11 | 2021-03-19 | 深圳供电局有限公司 | Power distribution typhoon emergency rescue risk simulation identification method for teaching |
| CN114004051B (en) * | 2021-11-16 | 2023-06-27 | 中国民用航空飞行学院 | Virtual simulation system construction method applied to civil airport emergency rescue |
| CN114185435B (en) * | 2021-12-13 | 2024-06-25 | 新疆大学 | Emergency training device and method based on virtual reality equipment |
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