CN-121982203-A - Scene construction method and device for coal and gas highlighting virtual simulation

CN121982203ACN 121982203 ACN121982203 ACN 121982203ACN-121982203-A

Abstract

The invention discloses a scene construction method and device for coal and gas highlight virtual simulation, and belongs to the technical field of safe production and emergency drilling simulation. Aiming at the problems of long time consumption, insufficient dynamic property, poor authenticity, low multiplexing rate and the like in the prior art scene construction, the method firstly deconstructs accident elements to establish a dynamic module library containing environment, disaster, evolution and other categories, receives key parameters such as geology, triggering, environment initiation and the like through a graphical or form interface, converts the parameters into disaster-causing intensity data through an intelligent mapping engine, and cooperatively calculates a driving module, and finally renders the disaster-causing intensity data into a visual three-dimensional scene in real time by means of a Unity3D or UnrealEngine engine. The scene can simulate dynamic processes such as gas diffusion, explosion impact and the like, has high fidelity and immersion sense, realizes one-key rapid generation, meets the drilling requirements of different levels, and can be expanded to the construction of emergency drilling scenes in other industries such as chemical leakage, fire and the like.

Inventors

XU HONGLEI
CAO SHUAI
HUANG XUCHAO
LI JING
CHEN YUJIN
XIAO XINGMEI
ZHAO KUN
XIE ZONGLIANG
ZHAO HUAJUN
LIU JUN
DAI YUANJIE
SUN YUNCHUAN
ZOU YUNLONG
LIU XIONG
WEI XIAO
Jiang Xugang
TANG DAN
WANG YUHONG
YANG LONG

Assignees

重庆科华安全设备有限责任公司
中煤科工集团重庆研究院有限公司

Dates

Publication Date: 20260505
Application Date: 20260122

Claims (10)

1. A scene construction method for virtual simulation of coal and gas highlighting, comprising: s10, decomposing coal mine accident elements into a roadway, a working surface, equipment, a protruding source, a gas source and an environmental impact module, and establishing a dynamic module library containing parameterized interfaces; s20, receiving geological parameters, trigger parameters and environment initial parameters input by a user through a graphical interface; S30, converting the geological parameters into disaster-causing intensity parameters based on an intelligent mapping rule engine, and automatically calling corresponding modules and initializing the states of the modules according to the disaster-causing intensity parameters and triggering parameters, wherein the steps include setting the emission quantity for a gas source and setting the initial speed for a protrusion; S40, driving each module in the evolution module to cooperatively calculate, simulating the gas concentration distribution, the coal dust diffusion settlement and the explosion triggering process in real time based on the gas diffusion model and disaster chain logic, and automatically instantiating the explosion special effect, the shock wave simulation and the equipment destruction effect when the preset conditions are met.
2. The method of claim 1, wherein S10 comprises: Constructing a dynamic disaster model, and calculating the outstanding strength, such as the outstanding coal quantity and the gas emission quantity, in real time according to geological conditions; The protruding gas emission amount is the increasing value of the gas emission amount before and after protruding, and is calculated according to the change rule of the concentration and the wind measurement value of the return gas.
3. The method of claim 1, wherein S20 comprises: the geological parameters comprise burial depth, gas pressure and coal seam thickness, and the triggering parameters comprise protruding position coordinates and protruding occurrence time; the environmental initial parameters include initial ventilation wind speed and roadway temperature.
4. The method of claim 1, wherein S30 comprises: the geological parameters input by the user are calculated into disaster-causing intensity parameters in real time through a built-in prominent intensity prediction algorithm; According to the protruding position and the disaster-causing intensity parameter, automatically calling a corresponding environment module and a disaster-causing module from a module library, and initializing the environment module and the disaster-causing module; And driving each module in the evolution module to perform cooperative calculation, for example, taking the gas emission quantity v and the emission time t output by the disaster-causing module as input boundary conditions of a gas diffusion model, and driving diffusion simulation of the gas cloud cluster in the three-dimensional scene in real time.
5. The method of claim 1, wherein S40 comprises: Converting dynamic data output by the intelligent mapping rule engine into a visual three-dimensional scene in real time by using Unity3D or UnrealEngine; simulating protruding pulverized coal injection and gas overflow by using a particle system; Simulating lens shake when visibility is reduced and explosion is performed by using the post-processing effect; Simulating the outstanding bang, alarm sound and explosion sound by using an acoustic effect system; and the team members can conduct free patrol and interactive exercise in the generated accident scene through the VR equipment or the desktop end.
6. The method of claim 2, wherein the method further comprises: simulating the concentration distribution of the gas in the roadway to change with time based on a simplified algorithm of computational fluid dynamics; simulating the diffusion and sedimentation of the protruding coal dust; When the gas concentration reaches the explosion limit and an ignition source exists, the gas explosion special effect and the shock wave module are automatically triggered.
7. The method of claim 6, wherein the method further comprises: the gas emission amount calculation model is as follows: Wherein C i is the average gas volume fraction (%) in the return airway time period i, The average return air quantity in a time period i in the return air lane (m 3 /min）,T i is the time length (min) of the ith section; The calculation model of the outstanding coal amount is as follows: Wherein G is the protruding coal quantity, the unit is ton (t), V i is the i-th sectional coal stacking volume, and the unit is cubic meter (m 3 ); The unit of the stacking density of the ith section is ton per cubic meter (t/m 3 ), the value range is 0.8t/m 3 ～1.0t/m 3 , the smaller value is taken when the granularity of the coal is smaller, i is the ith section, and n is the number of sections.
8. A scene building apparatus for virtual simulation of coal and gas highlighting, comprising: the element decomposition and module library building module is used for decomposing the coal mine accident elements into a roadway, a working surface, equipment, a salient source, a gas source and an environment influence module, and building a dynamic module library containing parameterized interfaces; The parameter receiving module is used for receiving geological parameters, triggering parameters and environment initial parameters input by a user through the graphical interface; The intelligent mapping and module initializing module is used for converting the geological parameters into disaster-causing intensity parameters based on an intelligent mapping rule engine, automatically calling the corresponding modules according to the disaster-causing intensity parameters and the triggering parameters and initializing the states of the modules, wherein the intelligent mapping and module initializing module comprises the steps of setting the emission quantity of a gas source and setting the initial speed of a protrusion; The collaborative computing and disaster simulation module is used for driving each module in the evolution module to perform collaborative computing, simulating the gas concentration distribution, the coal dust diffusion settlement and the explosion triggering process in real time based on the gas diffusion model and the disaster chain logic, and automatically instantiating the explosion special effect, the shock wave simulation and the equipment destruction effect when the preset conditions are met.
9. A computer device comprising a processor and a memory; Wherein the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory for implementing a scene construction method for virtual simulation of coal and gas protrusion as claimed in any one of claims 1 to 7.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements a scene construction method for virtual simulation of coal and gas protrusion as claimed in any one of claims 1 to 7.

Description

Scene construction method and device for coal and gas highlighting virtual simulation Technical Field The invention relates to the technical field of safe production and emergency drilling simulation, in particular to a scene construction method and device for coal and gas highlight virtual simulation. Background With the development of Virtual Reality (VR) and simulation technology, the application of the VR and the simulation technology in emergency exercises for coal mine safety production is increasingly wide. By constructing a realistic accident scene, an immersive and repeatable exercise environment can be provided for rescue workers, and the emergency treatment capacity is greatly improved. However, the prior art has a number of significant problems and bottlenecks in performing the highlight accident scenario construction. The current scene construction is made manually by depending on three-dimensional modeling software, a high-fidelity prominent accident scene is constructed from scratch, various links such as modeling, mapping, physical attribute setting, special effect integration and the like are needed, the time consumption is long, and the requirement of emergency exercise on the rapid scene generation cannot be met. Most of the existing methods can only build static scenes, accident forms, development and disaster chains are preset and fixed, so that the training personnel can easily memorize the scenes, the dynamic evolution process caused by the change of environmental parameters in the real accidents can not be simulated, and the reality and training value of the training are reduced. The rationality and authenticity of the scene are highly dependent on the deep understanding of the coal mine safety and the mechanism of the prominent accident by constructors. It is difficult for a person of ordinary skill to accurately convert abstract technical parameters (such as gas emission amount, outstanding coal amount) into a visualized three-dimensional scene, so that the constructed scene may not conform to the physical laws. The scene construction work of different projects and different mines is independent, the multiplexing rate of the model and the logic codes is low, and a great deal of repeated labor and resource waste are caused. Therefore, there is an urgent need in the art for a new method capable of quickly, dynamically and standardizing construction of an outstanding accident scenario to overcome the above-mentioned technical drawbacks. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, a first object of the present invention is to propose a scene construction method for virtual simulation of coal and gas highlighting. Another object of the present invention is to propose a scene construction device for virtual simulation of coal and gas highlighting. A third object of the invention is to propose a computer device. A fourth object of the present invention is to propose a non-transitory computer readable storage medium. To achieve the above object, an embodiment of a first aspect of the present invention provides a scene construction method for virtual simulation of coal and gas, including: s10, decomposing coal mine accident elements into a roadway, a working surface, equipment, a protruding source, a gas source and an environmental impact module, and establishing a dynamic module library containing parameterized interfaces; s20, receiving geological parameters, trigger parameters and environment initial parameters input by a user through a graphical interface; S30, converting the geological parameters into disaster-causing intensity parameters based on an intelligent mapping rule engine, and automatically calling corresponding modules and initializing the states of the modules according to the disaster-causing intensity parameters and triggering parameters, wherein the steps include setting the emission quantity for a gas source and setting the initial speed for a protrusion; S40, driving each module in the evolution module to cooperatively calculate, simulating the gas concentration distribution, the coal dust diffusion settlement and the explosion triggering process in real time based on the gas diffusion model and disaster chain logic, and automatically instantiating the explosion special effect, the shock wave simulation and the equipment destruction effect when the preset conditions are met. In one embodiment of the present invention, the S10 includes: Constructing a dynamic disaster model, and calculating the outstanding strength, such as the outstanding coal quantity and the gas emission quantity, in real time according to geological conditions; The protruding gas emission amount is the increasing value of the gas emission amount before and after protruding, and is calculated according to the change rule of the concentration and the wind measurement value of the return gas. In one e