CN-121997705-A - BIM and virtual interaction-based gas accident disaster simulation method and system

CN121997705ACN 121997705 ACN121997705 ACN 121997705ACN-121997705-A

Abstract

The invention relates to the technical field of gas accident disaster simulation and discloses a method and a system for simulating gas accident disaster based on BIM and virtual interaction. The method comprises the steps of acquiring real-time acquisition signals of electric equipment, a gas sensor and a temperature sensor in a region to be tested, executing disaster simulation operation based on an evaluation model when abnormal signals are identified, outputting simulation evaluation results, checking the simulation evaluation results to output evaluation results with credibility, constructing an evaluation model by extracting common information of known gas accidents, and determining evaluation nodes based on equipment grades to load the corresponding evaluation model. According to the invention, by constructing the evaluation model, executing differentiated disaster simulation operation and checking the result, accurate sensing and early warning of disaster precursors are realized, and the accuracy and reliability of the evaluation result are ensured.

Inventors

LI KAIZHI
CHEN XIANGJUN
SI CHAOXIA
WANG LIGUO
Hou Taozhe

Assignees

河南理工大学

Dates

Publication Date: 20260508
Application Date: 20251219

Claims (10)

1. The gas accident disaster simulation method based on BIM and virtual interaction is characterized by comprising the following steps of: acquiring real-time acquisition signals of electric equipment, a gas sensor and a temperature sensor in a region to be detected; when an abnormal signal is identified from the real-time acquisition signal, performing: Constructing an evaluation model, wherein the construction of the evaluation model comprises the steps of constructing a data set based on known gas accidents, and extracting commonality information of the data set to construct the evaluation model; based on the evaluation model, executing disaster simulation operation to output a simulation evaluation result, and checking the simulation evaluation result to output an evaluation result with credibility; The common information of the data set comprises information consistency and a common dimension value, wherein the information consistency is used for describing the pairwise similarity of parameter information among known gas accidents, and the common dimension value is identification content with the information consistency being greater than or equal to a set threshold value; The process of obtaining the information consistency degree comprises vectorizing the information in the data set, and extracting similarity by calculating cosine values of included angles between every two vectors to serve as the information consistency degree.
2. The method for simulating the disaster of the gas accident based on BIM and virtual interaction according to claim 1, wherein the step of identifying the abnormal signal comprises the steps of determining a critical point signal in the real-time acquisition signal and calibrating the critical point signal as the abnormal signal, and the step of calibrating a sampling point signal in the real-time acquisition signal as a normal signal and obtaining a fluctuation lower limit and a fluctuation upper limit of a detection parameter based on the normal signal statistical analysis.
3. The method for simulating a gas accident situation based on BIM and virtual interaction according to claim 1, wherein the performing the disaster situation simulation operation comprises determining an evaluation node based on a device level, and loading the corresponding evaluation model under the evaluation node to perform the disaster situation simulation operation.
4. The method for simulating the disaster of the gas accident based on the BIM and the virtual interaction according to claim 3, wherein the equipment levels comprise first-level equipment, second-level equipment and third-level equipment, wherein the first-level equipment is equipment with the highest risk level, the second-level equipment is equipment with the current fluctuation phenomenon caused by the gas concentration fluctuation, and the third-level equipment is equipment with the lowest risk level.
5. The method for simulating the gas accident situation based on BIM and virtual interaction according to claim 1, wherein the verification of the simulation evaluation result comprises the steps of obtaining a reference parameter representing the actual risk state of the region to be tested, generating an evaluation offset value based on the reference parameter and the simulation evaluation result, and judging the credibility of the simulation evaluation result according to the evaluation offset value.
6. The gas accident disaster simulation system based on BIM and virtual interaction is characterized by comprising the following modules: The information acquisition module is used for acquiring real-time acquisition signals of electric equipment, a gas sensor and a temperature sensor in the area to be detected; the abnormality identification module is used for identifying an abnormal signal from the real-time acquisition signal; the simulation execution module is used for executing disaster simulation operation based on an evaluation model to generate a simulation evaluation result in response to the recognition of the abnormal signal by the abnormal recognition module; the verification output module is used for verifying the simulation evaluation result to output an evaluation result with credibility; And the system construction module is used for optimizing the subsequent disaster simulation operation based on the evaluation result with the credibility.
7. The system for simulating a gas accident situation based on BIM and virtual interaction according to claim 6, further comprising a model construction module for constructing the evaluation model by extracting commonality information of a data set constructed based on known gas accidents.
8. The system for simulating a gas accident situation based on BIM and virtual interaction according to claim 7, wherein the model construction module extracts commonality information of a data set constructed based on known gas accidents, wherein the commonality information comprises information consistency and commonality dimension values; The process of obtaining the information consistency degree comprises vectorizing the information in the data set, and extracting similarity by calculating cosine values of included angles between every two vectors to serve as the information consistency degree.
9. The system for simulating the disaster of the gas accident based on the BIM and the virtual interaction according to claim 6, wherein the simulation execution module is specifically configured to determine an evaluation node based on a device level associated with the electric device in the area to be tested, and load the corresponding evaluation model under the evaluation node.
10. The system for simulating a gas accident disaster based on BIM and virtual interaction according to claim 9, wherein the equipment levels comprise a first-level equipment, a second-level equipment and a third-level equipment, the first-level equipment is the equipment with the highest risk level, the second-level equipment is the equipment with the current fluctuation phenomenon caused by gas concentration fluctuation, and the third-level equipment is the equipment with the lowest risk level.

Description

BIM and virtual interaction-based gas accident disaster simulation method and system Technical Field The invention belongs to the technical field of gas accident disaster simulation, and particularly relates to a gas accident disaster simulation method and system based on BIM and virtual interaction. Background With the deep development of the fields of intelligent mines, intelligent construction and the like, the improvement of the safety production management level of underground engineering by utilizing a digital technology has become an industry consensus, a digital twin environment with high fidelity is constructed based on a building information model BIM, and simulation exercise of disaster accidents is performed by combining a virtual reality technology. In the existing disaster simulation technology based on BIM, the simulation result evaluation and verification mechanism is absent, the disaster evolution process such as a gas diffusion path, concentration distribution and the like generated by simulation calculation is often directly output as a final conclusion, the simulation result is absent to carry out rechecking, analysis and credibility evaluation, so that the accuracy and reliability of the output result are poor, the existing disaster simulation technology only focuses on the physical diffusion process of gas in the gas accident simulation, but ignores the dynamic interaction with various electric equipment key devices in the environment, the risk level of potential ignition sources cannot be judged and associated with analysis, the key turning points from gas leakage to explosion cannot be effectively predicted, the existing disaster simulation technology is insufficient in interactivity and dynamic performance, and cannot support the influence of countermeasure measures such as ventilation starting, power cutting and the like on the disaster evolution in real time in the simulation process, so that functions are limited in the aspect of actual combat exercise. Based on the problems, the invention provides a gas accident disaster simulation method and system based on BIM and virtual interaction. Disclosure of Invention The invention aims to provide a gas accident disaster simulation method based on BIM and virtual interaction, which aims to solve the technical problem that an evaluation result cannot be directly output as a final result after rechecking because the prior art does not have an analysis flow of a gas disaster simulation result. In order to achieve the above object, the technical scheme of the present invention is as follows: A gas accident disaster simulation method based on BIM and virtual interaction comprises the following steps: acquiring real-time acquisition signals of electric equipment, a gas sensor and a temperature sensor in a region to be detected; when an abnormal signal is identified from the real-time acquisition signal, performing: Constructing an evaluation model, wherein the construction of the evaluation model comprises the steps of constructing a data set based on known gas accidents, and extracting commonality information of the data set to construct the evaluation model; based on the evaluation model, executing disaster simulation operation to output a simulation evaluation result, and checking the simulation evaluation result to output an evaluation result with credibility; The common information of the data set comprises information consistency and a common dimension value, wherein the information consistency is used for describing the pairwise similarity of parameter information among known gas accidents, and the common dimension value is identification content with the information consistency being greater than or equal to a set threshold value; The process of obtaining the information consistency degree comprises vectorizing the information in the data set, and extracting similarity by calculating cosine values of included angles between every two vectors to serve as the information consistency degree. Preferably, the abnormal signal identification comprises the steps of determining a critical point signal in the real-time acquisition signal, calibrating the critical point signal as the abnormal signal, calibrating a sampling point signal in the real-time acquisition signal as a normal signal, and obtaining a fluctuation lower limit and a fluctuation upper limit of a detection parameter based on the normal signal statistical analysis. Preferably, the disaster simulation operation is executed by determining an evaluation node based on equipment grade, and loading the corresponding evaluation model under the evaluation node to execute the disaster simulation operation. Preferably, the equipment grade comprises a first-level equipment, a second-level equipment and a third-level equipment, wherein the first-level equipment is the equipment with the highest risk grade, the second-level equipment is the equipment with the current fluctuation phenomenon c