CN115223416A - Visual virtual reality radiation source prevention and control equipment simulation system - Google Patents
Visual virtual reality radiation source prevention and control equipment simulation system Download PDFInfo
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- CN115223416A CN115223416A CN202210936812.1A CN202210936812A CN115223416A CN 115223416 A CN115223416 A CN 115223416A CN 202210936812 A CN202210936812 A CN 202210936812A CN 115223416 A CN115223416 A CN 115223416A
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Abstract
The invention discloses a simulation system of a visual virtual reality radioactive source prevention and control device, which comprises: the virtual reality radiation source prevention and control equipment simulation system is used for carrying out process training on actual equipment; the three-dimensional library is used for simulating the prevention and control equipment and the three-dimensional environment; simulating a radiation result; visualizing a radiation result; and (4) virtual reality interaction. The simulation system of the visual virtual reality radiation source prevention and control equipment combines the nuclear radiation simulation technology of the three-dimensional rendering engine, can realize real-time simulation, is rapid and effective, and can directly observe the radiation condition.
Description
Technical Field
The invention relates to the technical field of virtual reality radioactive sources, in particular to a simulation system of a visual virtual reality radioactive source prevention and control device.
Background
Nuclear energy is one of the most important new energy sources in the 21 st century, and plays a very important role. With the advancement of technology, a lot of convenience is provided in the field of human life. However, nuclear energy is a double-edged sword, which can bring benefits to human beings and bring disasters.
Virtual reality technology (VR), also known as telepresence technology or artificial environment, utilizes computer simulation to generate a three-dimensional virtual world, and provides simulation of senses of a user about vision, hearing, touch and the like, so that the user can observe objects in the three-dimensional space in time and without limitation as if the user is personally on the scene. In popular terms, the users can be put into the virtual environment completely through the VR glasses without the auxiliary application of the external environment.
The simulation system of the virtual reality radioactive source prevention and control equipment focuses on simulation, interaction and training of the radioactive source prevention and control equipment under the virtual reality condition, and physical parameter simulation mainly focuses on simulation of radioactive source parameters and radiation conditions.
However, the existing equipment cannot completely simulate the appearance, functions and using hand feeling of the prevention and control equipment, and the qualitative result is poor, and the radiation condition cannot be observed visually.
Disclosure of Invention
The invention aims to provide a simulation system of a visual virtual reality radioactive source prevention and control device, which is characterized in that simulation of the virtual reality radioactive source prevention and control device is more focused on qualitative results, and the appearance, the function and the use hand feeling of the prevention and control device can be completely simulated.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a visual virtual reality radiation source prevention and control equipment simulation system which characterized in that, it includes: the virtual reality radiation source prevention and control equipment simulation system is used for carrying out process training on actual equipment; the three-dimensional library is used for simulating the prevention and control equipment and the three-dimensional environment; simulating a radiation result; visualizing a radiation result; and (4) virtual reality interaction. The simulation training of the nuclear-involved prevention and control equipment can be carried out in the virtual reality environment, and the method is safe and low in cost. The nuclear radiation simulation technology of the three-dimensional rendering engine is combined, so that real-time simulation can be realized, and the method is quick and effective.
Preferably, the three-dimensional library comprises a prevention and control equipment model library and a prevention and control equipment function simulation. The radiation condition can be directly observed, and the method is visual and rapid.
Preferably, the three-dimensional library comprises a library of three-dimensional environments.
Preferably, the three-dimensional library comprises a prevention and control equipment model library, a prevention and control equipment function simulation and a three-dimensional environment library, and the prevention and control equipment three-dimensional library and the three-dimensional environment library provide scene simulation in a virtual environment.
Preferably, the method comprises the following specific steps: s1: a virtual reality radiation source prevention and control equipment simulation system; s2: a prevention and control device model library; s3: simulating the functions of the prevention and control equipment; s4: simulating a radiation result; s5: visualizing a radiation result; s6: and (4) virtual reality interaction.
Preferably, the method comprises the following specific steps: s1: a virtual reality radiation source prevention and control equipment simulation system; s2: a three-dimensional environment library; s3: simulating a radiation result; s4: visualizing a radiation result; s5: and (4) virtual reality interaction.
Preferably, the method comprises the following specific steps: s1: a virtual reality radiation source prevention and control equipment simulation system; s2: simulating functions of the three-dimensional environment library, the prevention and control equipment model library and the prevention and control equipment; s3: simulating a radiation result; s4: visualizing a radiation result; s5: and (4) virtual reality interaction.
The device comprises a client computing host, a virtual reality display and handheld interaction equipment.
Preferably, the handheld interactive device provides key operation input and 6-degree-of-freedom real-time information of the hand.
Preferably, the client computing host provides rendering capabilities and physical simulation computing capabilities of the three-dimensional world.
Preferably, the virtual reality display provides a stereoscopic presentation of the scene.
The invention has the beneficial effects that:
the simulation system of the visual virtual reality radiation source prevention and control equipment emphasizes qualitative results, and can completely simulate the appearance, the function and the use hand feeling of the prevention and control equipment. The virtual reality technology is applied to teaching training and examination, boring theoretical knowledge in textbooks can be more vividly explained, and the problems of high cost investment, high safety management and control risks, difficult actual combat atmosphere construction and the like in actual training are solved. The subway station nuclear defense simulation training system project is more convenient for teaching subjects to rely on the immersion, the virtualization and the imagination of the VR technology, provides rich learning scenes for students, integrates teaching, practical operation and examination, has a systematic and professional learning evaluation index system, and can effectively promote learning.
Drawings
Fig. 1 is a schematic flow chart according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts throughout, or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, and may also include the first feature and the second feature not being in direct contact but being in contact via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in FIG. 1: the invention provides a simulation system of a visual virtual reality radioactive source prevention and control device, which comprises: the virtual reality radioactive source prevention and control equipment simulation system is used for carrying out process training on actual equipment; the three-dimensional library is used for simulating the prevention and control equipment and the three-dimensional environment; simulating a radiation result; visualizing a radiation result; and (4) virtual reality interaction. The simulation training of the nuclear-involved prevention and control equipment can be carried out in the virtual reality environment, and the method is safe and low in cost. The nuclear radiation simulation technology of the three-dimensional rendering engine is combined, so that real-time simulation can be realized, and the method is quick and effective.
The three-dimensional library of the prevention and control equipment and the three-dimensional environment library provide scene simulation in a virtual environment, virtual reality interaction provides display and gesture input, radiation physical simulation provides overall radiation result simulation for a virtual world, a radiation result visualization module can directly simulate a radiation simulation result of the real world, and the simulation of the function of the prevention and control equipment is to enable the prevention and control equipment to have proper influence on the radiation physical simulation result in the radiation physical simulation module.
Firstly, the following steps: simulation of functions of prevention and control equipment
The functions of the prevention and control equipment are all related to the radiated high-energy particle flow, and the prevention and control equipment of the protection type can be set with different brightness, colors and highlights in a radiation rendering channel. For example, a radiation protective garment may have an opacity of 0.95, a base color of 0xFFFFFF, and a highlight of 0.5, a lead box opacity of 1, a base color of 0x000000, and a highlight of 0. For the detection prevention and control equipment, such as a gamma ray detector, the radiation intensity of the self-detection point under the radiation rendering channel can be measured.
II, secondly: radiation physical simulation module
The present application uses an additional light channel of a three-dimensional rendering engine based on physical rendering for radiation simulation. Because the motion characteristics of the radiation high-energy particles are similar to the particle characteristics of light, even gamma rays are electromagnetic waves with extremely short wavelength, the propagation of nuclear radiation in a medium can be simulated by a linear attenuation coefficient, and the transmission of light in a transparent medium is also suitable for the linear attenuation coefficient, so that the simulation of radiation physics is realized by using an optical rendering process, and the specific process is as follows:
(1) Aiming at a certain high-energy particle, a light channel is newly added as a radiation rendering channel, only three-dimensional structure information of each object exists in the channel, and ambient light, sunlight, other light sources, the roughness, the opacity, the metal degree and the highlight in a normal rendering channel are not reserved.
(2) If the radiation source of the high-energy particles exists in the scene, setting the corresponding luminous source shape and luminous source intensity E according to the radiation intensity and the radiation source shape, and setting the light source as a dynamic light source
(3) For the rendering process of a general three-dimensional rendering engine, the opacity in a given model determines the penetration condition of light rays, a buffer is newly added in the invention, the thickness information H of the model penetrated by the rays emitted by a light source E is stored, and the attenuation coefficient u of the model is given to the opacity of the model in materials. And calculated in the final ray calculation with opacity T = uH.
(4) For an object such as a lead box which is not transparent to radiation, the opacity of the object is set to 1, the basic color is black, that is, all energetic particles are absorbed by the lead box, and the other energetic particle is obviously different from visible light by air. The visible light is far in transmission distance in the air, but the high-energy particles are not negligible even if the visible light is short in distance in the air, the attenuation phenomenon of high-energy particle rays in the air is simulated by adding volume fog in a scene, and the intensity I of the volume fog is set according to the air attenuation coefficient of the high-energy rays in the air.
(5) After the scene is subjected to real-time illumination calculation of a three-dimensional rendering engine, the illumination intensity E of each point on an object in the optical channel in the space is the radiation intensity E simulated by the system at the moment.
(6) A360-degree camera is adopted at a radiation light source for sampling the radiation quantity, for example, if the sampling interval is 0.02s, the radiation intensity of a pixel n is En, the summation of all pixels of a person or an object is Ep, the radiation quantity of the object in 0.02s is 0.02Ep, and a numerical curve of the radiation quantity/time of the object can be obtained along with the evolution of time.
Thirdly, the steps of: visualization of radiation results
Aiming at radiation simulation, a rendering channel is newly added, and the illumination condition of the channel is the visual scene of the radiation intensity. According to the radiation quantity/time numerical curve calculated by the radiation simulation module, the radiation intensity and the radiation quantity of the radiation simulation module are written into the triangular surface custom cache of the model in a unit sampling period, the radiation intensity of each triangular surface is written in a covering mode, the radiation quantity is written in after accumulation, the instantaneous radiation condition and the accumulated radiation condition of the three-dimensional world can be respectively represented, and the radiation condition of each part of a person concerned in general training is also represented in the mode.
The virtual reality technology of this application, the vision: a wider field of view and higher resolution can provide a better virtual reality experience. Immersion: the superior position tracking and lower jitter gives the user a feeling of being personally on the scene, which the optimal virtual reality system can exhibit perfectly in the living room and the like. The practicability is as follows: the virtual reality should be able to cooperate perfectly with the standard platform, avoid dizziness due to low frame rate, provide intuitive operation. Flexibility: the ability to swap between virtual reality and augmented reality allows for more flexibility in virtual reality applications, which some virtual reality systems have been able to do, but video adjustments still suffer from latency problems. The wearability is as follows: my virtual reality head-mounted display is lighter and lighter in weight, has increased the design of travelling comfort simultaneously, consequently can wear for several hours and can not cause visual fatigue.
The three-dimensional library comprises a prevention and control equipment model library and prevention and control equipment function simulation.
The three-dimensional model of the prevention and control equipment is a three-dimensional skeleton model, the specific format is determined by a three-dimensional rendering engine, the general manufacturing software on the market is Maya, 3DMax, blender and the like, and the format is FBX generally. The three-dimensional model consists of skin information and skeleton information, wherein the skin information stores the surface shape and surface material information of an object, and the skeleton information stores the movable information of the object, such as a movable key in a radiation detector.
The three-dimensional library comprises a three-dimensional environment library.
The three-dimensional environment library is based on a three-dimensional rendering engine, three-dimensional models such as houses and tables are placed at proper positions in the three-dimensional rendering engine, and a specified three-dimensional world is rendered through the three-dimensional rendering engine.
The three-dimensional library comprises a prevention and control equipment model library, a prevention and control equipment function simulation and a three-dimensional environment library, and the prevention and control equipment three-dimensional library and the three-dimensional environment library provide scene simulation in a virtual environment.
As shown in fig. 1, the specific steps are as follows: s1: a virtual reality radioactive source prevention and control equipment simulation system; s2: a prevention and control device model library; s3: simulating the functions of the prevention and control equipment; s4: simulating a radiation result; s5: visualizing a radiation result; s6: and (4) virtual reality interaction.
As shown in fig. 1, the specific steps are as follows: s1: a virtual reality radiation source prevention and control equipment simulation system; s2: a three-dimensional environment library; s3: simulating a radiation result; s4: visualizing a radiation result; s5: and (5) virtual reality interaction.
Virtual reality interaction: VR (virtual reality) handheld interaction equipment can calculate its position and angle data through the camera on the virtual reality display in real time, and button and touch-sensitive ware signal on the handheld interaction equipment are used for catching hand gesture and trigger command. The handheld interaction device is in data connection with the computer in a wireless mode, and the handheld interaction device at least has an instruction A which indicates that the hand is in a fist making posture. When the hand position in the virtual space is overlapped with the virtual handheld device, if the fist making operation is carried out at the moment, the virtual handheld device enters a handheld state, and the position and the angle of the virtual handheld device in the virtual space use the position angle information of the handheld interactive device.
The utility model provides a visual Virtual Reality radiation source prevention and control equipment simulation device, includes visual Virtual Reality radiation source prevention and control equipment simulation system, and the device includes customer end calculation host computer, virtual Reality display (VR (Virtual Reality) display), handheld mutual equipment. The server and the client run a Windows system and run virtual reality prevention and control equipment simulation software developed based on a three-dimensional rendering engine, and the server and the client perform data transmission through a network. In the client, the handheld interactive device provides key operation input and 6-degree-of-freedom (spatial coordinates and spatial angles) real-time information of a hand, the computing host provides rendering capability and physical simulation computing capability of a three-dimensional world, and the VR display provides three-dimensional scene presentation.
Preferably, the handheld interactive device provides key operation input and 6-degree-of-freedom (spatial coordinates and spatial angles) real-time information of the hand.
Preferably, the client computing host provides rendering capabilities and physical simulation computing capabilities of the three-dimensional world.
Preferably, the virtual reality display provides a stereoscopic presentation of the scene.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a visual virtual reality radiation source prevention and control equipment simulation system which characterized in that, it includes:
the virtual reality radiation source prevention and control equipment simulation system is used for carrying out process training on actual equipment;
the three-dimensional library is used for simulating the prevention and control equipment and the three-dimensional environment;
simulating a radiation result;
visualizing a radiation result;
and (4) virtual reality interaction.
2. The visualization virtual reality radiation source prevention and control device simulation system of claim 1, wherein the three-dimensional library comprises a prevention and control device model library and a prevention and control device function simulation; or the three-dimensional library comprises a three-dimensional environmental library.
3. The system according to claim 1, wherein the three-dimensional library comprises a model library of prevention and control devices, a functional simulation of prevention and control devices, and a three-dimensional environment library, the three-dimensional library of prevention and control devices and the three-dimensional environment library providing scene simulation in a virtual environment.
4. The simulation system for the visualized virtual reality radiation source prevention and control equipment according to claim 1 is characterized by comprising the following specific steps:
s1: a virtual reality radiation source prevention and control equipment simulation system;
s2: a prevention and control equipment model library;
s3: simulating the functions of the prevention and control equipment;
s4: simulating a radiation result;
s5: visualizing a radiation result;
s6: and (4) virtual reality interaction.
5. The simulation system for the visualized virtual reality radiation source prevention and control equipment according to claim 1 is characterized by comprising the following specific steps:
s1: a virtual reality radioactive source prevention and control equipment simulation system;
s2: a three-dimensional environment library;
s3: simulating a radiation result;
s4: visualizing a radiation result;
s5: and (4) virtual reality interaction.
6. The simulation system for the visualized virtual reality radiation source prevention and control equipment according to claim 1 is characterized by comprising the following specific steps:
s1: a virtual reality radiation source prevention and control equipment simulation system;
s2: simulating the functions of a three-dimensional environment library, a prevention and control equipment model library and prevention and control equipment;
s3: simulating a radiation result;
s4: visualizing a radiation result;
s5: and (4) virtual reality interaction.
7. A simulation device of a visual virtual reality radioactive source prevention and control device comprises the visual virtual reality radioactive source prevention and control device simulation system as claimed in any one of claims 1 to 6, and is characterized by comprising a client computing host, a virtual reality display and a handheld interaction device.
8. The simulation system of a visual virtual reality radiation source prevention and control device of claim 7, wherein the handheld interaction device provides key operation input and 6-degree-of-freedom real-time information of a hand.
9. The visualization virtual reality radiation source prevention and control device simulation system of claim 7, wherein the client computing host provides rendering capabilities and physical simulation computing capabilities of a three-dimensional world.
10. The visualization virtual reality radiation source prevention device simulation system of claim 7, wherein the virtual reality display provides a stereoscopic scene presentation.
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| CN202210936812.1A CN115223416A (en) | 2022-08-05 | 2022-08-05 | Visual virtual reality radiation source prevention and control equipment simulation system |
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| US20180082473A1 (en) * | 2016-09-16 | 2018-03-22 | L-3 Communications Corp. | Visualizing electromagnetic particle emissions in computer-generated virtual environments |
| CN111627281A (en) * | 2020-05-29 | 2020-09-04 | 中核武汉核电运行技术股份有限公司 | Nuclear accident emergency simulation training system |
| CN114816068A (en) * | 2022-05-09 | 2022-07-29 | 中核四川环保工程有限责任公司 | Nuclear decommissioning virtual training system in radiation environment |
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| 王晓静: "虚拟现实技术在核电站辐射防护中的应用研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》, no. 4, pages 12 - 14 * |
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