CN116362113B

CN116362113B - Accident disaster evolution simulation method and system based on digital twinning

Info

Publication number: CN116362113B
Application number: CN202310187273.0A
Authority: CN
Inventors: 姚增利; 李森林; 王英豪; 赵恒�; 李瑞哲; 王流青
Original assignee: Beijing Graphsafe Technology Co ltd
Current assignee: Beijing Graphsafe Technology Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2024-03-12
Anticipated expiration: 2043-02-21
Also published as: CN116362113A

Abstract

The invention provides an accident disaster evolution simulation method and system based on digital twinning, wherein the system comprises the following steps: the system comprises a safety risk background management module, a safety risk distribution diagram module and a three-dimensional accident evolution simulation module; the method comprises the following steps: uniformly managing the uploaded security risk data; meanwhile, uploading of safety risk data, management of safety risk information and accident emergency resource management are realized; constructing a three-dimensional scene of the chemical storage area, and realizing three-dimensional visual display of risk data of the chemical storage area by adopting a digital twin technology; and realizing evolution simulation of the progress of the chemical accident on a three-dimensional scene. The invention adopts a digital twin technology to display the impending risk of the chemical storage area, prejudges the accident, adopts corresponding positive measures and minimizes the influence of the accident; the full-direction display of the scene situation is realized through the three-dimensional scene, the damage caused by accidents is delayed, and the loss caused by the accidents is reduced.

Description

Accident disaster evolution simulation method and system based on digital twinning

Technical Field

The invention relates to the technical field of chemical safety storage, in particular to an accident disaster evolution simulation method and system based on digital twinning.

Background

The chemical industry permeates various aspects, is an indispensable important component in national economy, and the development of the chemical industry is a sustainable development road, so that the chemical industry has important practical significance for the development of human economy and society. The chemical is closely related to people's clothing and food, and can be used as a raw material for producing medicines, chemical industry, beauty and articles for daily use; some of the chemicals are dangerous chemicals, and the safety of the dangerous chemicals plays an important role in guaranteeing the life safety, physical health and economic development of people. In recent years, dangerous chemical production safety accidents frequently happen, the life and property safety of people is seriously damaged, and meanwhile, the economic high-quality development and social stability are also seriously influenced. Therefore, how to strengthen the safety risk identification management and control of the dangerous chemical production, management and storage units, prevent and solve the serious safety risk, and effectively suppress the accidents of the extremely heavy dangerous chemical is an important research subject in front of the monitoring departments.

In the prior art, CN103072671B is a chemical leakage alarm buoy device, which consists of a shell, built-in equipment and a physicochemical sensor; the built-in device is placed in the housing and the physicochemical sensor is mounted on the flange of the housing by means of a sensor holder. The shell consists of an upper shell, a lower shell, an O-shaped ring, a bolt and a gasket; the built-in equipment consists of a detection circuit module, a communication control positioning device, a battery pack and a fixed bracket; the physical and chemical sensor is a contact physical and chemical sensor and is arranged on the flange of the shell through a sensor bracket; although a physical and chemical sensor which is directly contacted with chemicals leaked from the water surface is adopted to detect the alarming mode of the leakage of the chemicals from the water surface, after the leakage accident of the chemicals from the water surface occurs, the physical and chemical sensor can timely, accurately and real-timely alarm the leakage accident of the chemicals from the water surface, provide real and reliable data for emergency departments, and further provide assistance for emergency rescue; however, the method is limited to monitoring leakage of chemicals in water, has a limited application range, and is not suitable for accident disaster simulation of safety risks in centralized areas such as airports, oil and gas reservoirs and the like.

In the second prior art, CN101894355B high-risk chemical emergency disposal system, the system comprises: the system comprises a toxic and harmful substance monitoring analyzer, a meteorological observer, a data transmission module, a GIS positioning navigation module, a source intensity mode module, a hazard prediction module, a diffusion mode module, a hazard early warning module, a hazard index system, a data conversion engine, a GIS analysis display module and an emergency command module. Although the chemical hazard early warning level is determined according to the hazard evaluation result and the hazard index system, the hazard evaluation is integrated with the GIS through the data conversion engine, an emergency disposal system based on the GIS platform is established, an emergency control scheme is determined according to the early warning information, and effective control of the chemical hazard is realized; however, three-dimensional simulation of a scene is not realized, visual data simulation is not performed on accidents, and accurate and rapid processing cannot be performed when leakage accidents occur.

In the third prior art, the method comprises the steps of,CN110793735Ba liquid dangerous chemical leakage simulation test device comprises a leakage simulation device, a pavement simulation device, a liquid collecting device and a weighing device; the leakage simulation device comprises a liquid storage tank, a closure plate, a plugging plug, a hanging bracket and a leakage pore plate, the pavement simulation device comprises a pavement support, a plurality of simulation pavements and a plurality of levels, the liquid collecting device comprises a liquid collecting disc and a plurality of support columns, and the weighing device comprises a first electronic weighing device, a second electronic weighing device, a data acquisition instrument and a PC. Although the simulation test device can effectively simulate the leakage condition of different dangerous chemicals under different conditions when the liquid storage tank leaks in the transportation process; the method has the advantages that the leakage speed of the liquid dangerous chemicals is studied, the method has very important significance for evaluating the result severity of leakage derivative accidents and guiding emergency rescue work of the leakage derivative accidents of the dangerous chemicals, but the simulation of accident disasters combined with actual scenes is not realized, the evolution simulation of the leakage accidents cannot be carried out, and the leakage hazard degree cannot be effectively reduced.

The invention provides an accident disaster evolution simulation method and system based on digital twinning, which adopt the digital twinning technology to realize the accident disaster evolution simulation of chemicals and greatly improve the safety of transporting and storing the chemicals.

Disclosure of Invention

In order to solve the technical problems, the invention provides an accident disaster evolution simulation system based on digital twinning, which comprises:

the security risk background management module is responsible for realizing unified management of the uploaded security risk data by a user; meanwhile, uploading of safety risk data, management of safety risk information and accident emergency resource management are realized; the security risk data is from a chemical storage area;

the safety risk distribution diagram module is responsible for constructing a three-dimensional scene of the chemical storage area, and realizes three-dimensional visual display of risk data of the chemical storage area by adopting a digital twin technology;

and the three-dimensional accident evolution simulation module is responsible for realizing evolution simulation of chemical accident progress on a three-dimensional scene.

Optionally, the chemical storage area risk data comprises: the evaluation result of the safety risk data and various risk sources of the chemical storage area;

the evolution simulation comprises: and (3) simulating a leakage diffusion process of chemicals, a gas cloud explosion simulation and a fire process simulation.

Optionally, the security risk background management module includes:

the security risk data uploading submodule is responsible for providing a background uploading port for the security risk distribution chart module, the security risk data is imported into the security risk distribution chart module in a classified mode through a security risk acquisition table, and security risk information database management is carried out, and the security risk data is used as a basis for risk source identification and monitoring to realize periodic inspection of risk points; generating a risk point list of the chemical storage area by a security risk information database, and supporting an import function, an export function, a query function and a view function of the risk point list; the security risk data uploading submodule is provided with a periodic check comprising a risk point;

the security risk data management sub-module is responsible for performing functional operation on a risk point list imported by the security risk information database, wherein the functional operation comprises: the user with the operation authority performs addition, deletion, modification check and log maintenance on the risk point list;

And the daily safety risk management and control sub-module is responsible for monitoring the chemical storage area through the query function.

Optionally, the periodic checking comprises: checking items, checking periods and risk management measures;

the log maintenance includes: function operation type, function operator and function operation time;

the supervision comprises: emergency plans, emergency teams, emergency supplies and implementation of emergency expert measures.

Optionally, the security risk profile module includes:

the safety risk situation presentation sub-module is responsible for displaying the risk statistics result of the chemical storage area and the enterprise safety risk state;

the safety risk space distribution sub-module is responsible for displaying the safety risk space distribution of the chemical storage area and the enterprise;

the emergency treatment management sub-module is responsible for realizing dynamic plotting of safety accidents and planning and generating an emergency evacuation route.

Optionally, the security risk situation presenting sub-module includes:

the regional security risk situation unit is responsible for realizing the presentation of the security risk situation of the chemical storage region, presenting the display of security risk statistical results in the form of an instrument panel, and displaying the real-time quantitative indexes of the security risk, wherein the quantitative indexes comprise four risk grade colors of red, orange, yellow and blue;

The enterprise security risk situation unit is responsible for displaying the security risk state of each chemical enterprise and has three-dimensional space positions where the enterprise security risk values are positioned, and specific security risk distribution conditions are checked.

Optionally, the security risk spatial distribution sub-module includes:

the dynamic display unit is responsible for distinguishing indexes of real-time quantification of the safety risk, and carrying out three-dimensional visual dynamic display on a chemical storage area or a chemical related enterprise, wherein three-dimensional visual dynamic display content comprises four safety risk levels of red, orange, yellow and blue;

the enterprise risk point display unit is responsible for carrying out three-dimensional visual display on the equipment and facility safety risk data, wherein the three-dimensional visual display content is the risk information of the equipment and facility of the chemical related enterprises, and meanwhile, the equipment and facility positioning is realized.

Optionally, the emergency treatment management sub-module includes:

the accident dynamic plotting unit is responsible for providing a plotting tool for chemical accidents or three-dimensional visual display of the accidents, determining the position of the accidents through longitude and latitude positioning and three-dimensional map point position inquiring modes, and sending the position information to emergency rescue workers;

the emergency evacuation route unit is responsible for providing an emergency evacuation route, automatically generating the emergency evacuation route after the position of the accident mapping unit is determined, and assisting in dynamic flickering display.

The invention provides a digital twinning-based accident disaster evolution simulation method, which comprises the following steps:

uniformly managing the uploaded security risk data; meanwhile, uploading of safety risk data, management of safety risk information and accident emergency resource management are realized; the security risk data is from a chemical storage area;

constructing a three-dimensional scene of a chemical storage area, and realizing three-dimensional visual display of risk data of the chemical storage area by adopting a digital twin technology, wherein the risk data of the chemical storage area comprises: the evaluation result of the safety risk data and various risk sources of the chemical storage area;

the evolution simulation of the progress of the chemical accident is realized on a three-dimensional scene, and comprises the following steps: and (3) simulating a leakage diffusion process of chemicals, a gas cloud explosion simulation and a fire process simulation.

Optionally, a process for implementing evolution simulation of chemical accident progression on a three-dimensional scene includes:

according to the analysis results of the normal working condition state and the accident state related to the display of the chemical accident state through the accident evolution model, the content of the three-dimensional scene simulation display is checked, and the content mainly comprises the change condition of flow, temperature and pressure flow data of the internal gas and liquid particle level flow;

The three accident evolution flows of oil gas leakage, gas cloud explosion and fire disaster are connected in series, so that the evolution effects of the front, middle and rear three stages of complete accident occurrence are reflected.

The security risk background management module of the invention realizes unified management of the uploaded security risk data by the user; meanwhile, uploading of safety risk data, management of safety risk information and accident emergency resource management are realized; the safety risk data is from a chemical storage area, and the safety risk comprises accidents such as fire explosion, leakage, equipment damage, fire and the like; the safety risk distribution diagram module constructs a three-dimensional scene of the chemical storage area, adopts a digital twin technology to realize three-dimensional visual display of the risk data of the chemical storage area, and comprises the following steps: the evaluation result of the safety risk data and various risk sources of the chemical storage area; the three-dimensional accident evolution simulation module realizes the evolution simulation of the progress of the chemical accident on a three-dimensional scene, and the evolution simulation comprises: simulation of leakage and diffusion processes of chemicals, simulation of gas cloud explosion and simulation of fire processes; the scheme firstly realizes unified management of the safety risk data by the user, is favorable for accurate prediction of the safety risk, centrally manages the data, improves the privacy of the data, and is also a good protection for the chemical storage area; the three-dimensional scene is constructed to help realize three-dimensional visualization of risk data of the chemical storage area, a digital twin technology is adopted to display impending risk of the chemical storage area, so that an administrator pre-judges accidents in advance, and takes corresponding positive measures to minimize the influence of the accidents, thereby avoiding damage to the environment and people, realizing omnibearing display of site conditions through the three-dimensional scene, saving complicated site investigation, delaying damage caused by the accidents and reducing loss caused by the accidents; the three-dimensional accident evolution simulation is adopted to realize the evolution simulation of the chemical accident progress, so that the loss and the destructiveness caused by the accident can be effectively obtained, and the time is taken for actively taking effective measures.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a block diagram of an accident disaster evolution simulation system based on digital twinning in the embodiment 1 of the present invention;

FIG. 2 is a block diagram of a security risk background management module according to embodiment 2 of the present invention;

FIG. 3 is a block diagram of a security risk profile according to embodiment 3 of the present invention;

FIG. 4 is a block diagram of a security risk situation presenting submodule in embodiment 4 of the present invention;

FIG. 5 is a block diagram of a security risk space distribution submodule in embodiment 5 of the present invention;

FIG. 6 is a block diagram of an emergency handling management submodule in embodiment 6 of the present invention;

FIG. 7 is a block diagram of a three-dimensional accident evolution simulation module in embodiment 7 of the present invention;

FIG. 8 is a flow chart of an accident disaster evolution simulation method based on digital twinning in the embodiment 9 of the invention;

FIG. 9 is a process diagram of unified management of uploaded security risk data in embodiment 10 of the present invention;

FIG. 10 is a process diagram of a three-dimensional scenario for constructing a chemical storage area in example 11 of the present invention;

fig. 11 is a process diagram of an evolution simulation for achieving the progress of a chemical accident on a three-dimensional scene in embodiment 12 of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Example 1

As shown in fig. 1, an embodiment of the present invention provides a digital twinning-based accident disaster evolution simulation system, including:

the safety risk distribution diagram module is responsible for constructing a three-dimensional scene of the chemical storage area, and realizes three-dimensional visual display of risk data of the chemical storage area by adopting a digital twin technology, wherein the risk data of the chemical storage area comprises: the evaluation result of the safety risk data and various risk sources of the chemical storage area;

The three-dimensional accident evolution simulation module is responsible for realizing evolution simulation of chemical accident progress on a three-dimensional scene, wherein the evolution simulation comprises: simulation of leakage and diffusion processes of chemicals, simulation of gas cloud explosion and simulation of fire processes;

the working principle and beneficial effects of the technical scheme are as follows: the security risk background management module of the embodiment realizes unified management of the uploaded security risk data by the user; meanwhile, uploading of safety risk data, management of safety risk information and accident emergency resource management are realized; the safety risk data is from a chemical storage area, and the safety risk comprises accidents such as fire explosion, leakage, equipment damage, fire and the like; the safety risk distribution diagram module constructs a three-dimensional scene of the chemical storage area, adopts a digital twin technology to realize three-dimensional visual display of the risk data of the chemical storage area, and comprises the following steps: the evaluation result of the safety risk data and various risk sources of the chemical storage area; the three-dimensional accident evolution simulation module realizes the evolution simulation of the progress of the chemical accident on a three-dimensional scene, and the evolution simulation comprises: simulation of leakage and diffusion processes of chemicals, simulation of gas cloud explosion and simulation of fire processes; the scheme firstly realizes unified management of the safety risk data by the user, is favorable for accurate prediction of the safety risk, centrally manages the data, improves the privacy of the data, and is also a good protection for the chemical storage area; the three-dimensional scene is constructed to help realize three-dimensional visualization of risk data of the chemical storage area, a digital twin technology is adopted to display impending risk of the chemical storage area, so that an administrator pre-judges accidents in advance, and takes corresponding positive measures to minimize the influence of the accidents, thereby avoiding damage to the environment and people, realizing omnibearing display of site conditions through the three-dimensional scene, saving complicated site investigation, delaying damage caused by the accidents and reducing loss caused by the accidents; the three-dimensional accident evolution simulation is adopted to realize the evolution simulation of the chemical accident progress, so that the loss and the destructiveness caused by the accident can be effectively obtained, and the time is taken for actively taking effective measures.

Example 2

As shown in fig. 2, on the basis of embodiment 1, the security risk background management module provided in the embodiment of the present invention includes:

the security risk data uploading submodule is responsible for providing a background uploading port for the security risk distribution chart module, the security risk data is imported into the security risk distribution chart module in a classified mode through a security risk acquisition table, and security risk information database management is carried out, and the security risk data is used as a basis for risk source identification and monitoring to realize periodic inspection of risk points; generating a risk point list of the chemical storage area by a security risk information database, and supporting an import function, an export function, a query function and a view function of the risk point list; the security risk data uploading submodule is provided with a periodic check including a risk point, and the periodic check includes: checking items, checking periods and risk management measures;

the security risk data management sub-module is responsible for performing functional operation on a risk point list imported by the security risk information database, wherein the functional operation comprises: the user with the operation authority adds, deletes, modifies, looks over, maintains and the like the risk point list; wherein log maintenance comprises: function operation type, function operator, function operation time, etc.;

Daily safety risk management and control submodule is responsible for supervising the chemical storage area through the inquiry function, and the supervision comprises: implementation of measures such as emergency plans, emergency teams, emergency supplies, emergency specialists and the like;

the working principle and beneficial effects of the technical scheme are as follows: the security risk data uploading sub-module of the embodiment provides a background uploading port for the security risk distribution map module, the security risk data is imported into the security risk distribution map module in a classified manner through the security risk collection table, and security risk information database management is carried out, wherein the security risk data is used as a basis for risk source identification and monitoring; generating a risk point list of the chemical storage area by a security risk information database, and supporting an import function, an export function, a query function and a view function of the risk point list; the security risk data management sub-module performs functional operation on the risk point list imported by the security risk information database, wherein the functional operation comprises: the user with the operation authority adds, deletes, modifies, looks over, maintains and the like the risk point list; wherein log maintenance comprises: function operation type, function operator, function operation time, etc.; the daily safety risk management and control submodule monitors the chemical storage area through the query function, and the monitoring comprises: implementation of measures such as emergency plans, emergency teams, emergency supplies, emergency specialists and the like; the method and the system provide background support for unified management of safety risk data, form a risk point list according to the safety risk data, provide a direction for evolution simulation of chemical accident disasters, and promote the effect of the evolution simulation, so that the progress of the accident disasters is accurately predicted, and the accident disasters are timely and efficiently eliminated; in addition, the safety risk data uploading submodule is imported in a classified mode through the safety risk collection table, so that identification of the risk sources is realized, data basis is provided for identification of the risk sources, identification accuracy of the risk sources is improved, and prediction accuracy of chemical accident disasters is improved; meanwhile, a risk point list is generated, and the periodic inspection of risk points is adopted to realize the prevention and control and informatization management of safe winnowing; the security risk data management sub-module is provided with functional operation, so that humanized management of a risk list is realized, the identification efficiency of a risk source is improved, log maintenance is supported, daily management of the risk source is realized, the management efficiency of security risk data is improved, and the complicated manual operation is saved; the daily safety risk management and control submodule monitors the implementation of safety risk management and control measures, ensures the accurate in-place of the safety risk management and control measures, realizes the treatment of a risk source, improves the overall supervision level of a chemical storage area, and powerfully ensures the safety and stability of the chemical storage area.

Example 3

As shown in fig. 3, on the basis of embodiment 1, the security risk distribution diagram module provided in the embodiment of the present invention includes:

the emergency treatment management sub-module is responsible for realizing dynamic plotting of safety accidents and planning and generating an emergency evacuation route;

the working principle and beneficial effects of the technical scheme are as follows: the security risk situation presentation sub-module of the embodiment displays the statistical result of the chemical storage area and the enterprise security risk state; the security risk space distribution sub-module displays the chemical storage area and the enterprise security risk space distribution; the emergency treatment management submodule realizes dynamic plotting of safety accidents and plans and generates an emergency evacuation route; the method and the device realize the state display of risks of the chemical storage area and the chemical related enterprises, not only quantitatively display the risks of the chemical storage area, but also realize the positioning and the safety risk distribution condition display of the chemical related enterprises, monitor the chemical related area in an omnibearing manner, and realize the omnibearing display of the safety risk distribution of the chemicals; the safety risk space distribution sub-module realizes the display of the safety risk space distribution of the chemical storage area and the enterprise, realizes the three-dimensional visual dynamic display of the chemical storage area, not only realizes the display of the safety risk level, but also realizes the three-dimensional visual dynamic display, is convenient for the full-scale display of the safety risk distribution, is beneficial to judging the safety risk of the chemical, and efficiently adopts corresponding measures; the emergency management submodule realizes the positioning of accidents and emergency rescue workers, facilitates the rapid retrieval of emergency resources and assists the decision of emergency treatment, in addition, an emergency evacuation route is generated, the rescue efficiency is improved, and the loss of life and property is reduced.

Example 4

As shown in fig. 4, on the basis of embodiment 3, the security risk situation presenting sub-module provided by the embodiment of the present invention includes:

the enterprise security risk situation unit is responsible for displaying the security risk state of each chemical enterprise, and further has the three-dimensional space position where the enterprise security risk value is positioned, and checks the specific security risk distribution condition;

the working principle and beneficial effects of the technical scheme are as follows: the regional security risk situation unit of the embodiment realizes the presentation of the security risk situation of the chemical storage region, presents the display of security risk statistics results in the form of an instrument panel, and carries out real-time quantitative index display on the security risk, wherein the quantitative index comprises four risk grade colors of red, orange, yellow and blue; the enterprise security risk situation unit displays the security risk state of each chemical enterprise, and further has the three-dimensional space position where the enterprise security risk value is positioned, and checks the specific security risk distribution condition; the scheme realizes the grading of the safety risks, the grades are represented by four colors, and the statistical result of the safety risks is more visualized through the display of quantitative indexes, so that the safety risk grade is not required to be judged manually, and the treatment time of chemical accidents is directly shortened; meanwhile, the method realizes the visualization of the safety risk of chemical related enterprises, monitors the safety risk state of each chemical enterprise, supplements the monitoring of the chemical storage area, is critical to the realization of the omnibearing chemical monitoring, and realizes the display of the risk statistics result and the enterprise safety risk state of the chemical storage area.

Example 5

As shown in fig. 5, on the basis of embodiment 3, the security risk space distribution sub-module provided in the embodiment of the present invention includes:

the enterprise risk point display unit is responsible for carrying out three-dimensional visual display on the equipment and facility security risk data, wherein the three-dimensional visual display content is the risk information of the equipment and facility of the chemical related enterprises, and meanwhile, the positioning of the equipment and facility is realized;

the working principle and beneficial effects of the technical scheme are as follows: the dynamic display unit of the embodiment distinguishes indexes of real-time quantification of safety risks, performs three-dimensional visual dynamic display on a chemical storage area or a chemical related enterprise, and the three-dimensional visual dynamic display content comprises four safety risk levels of red, orange, yellow and blue; the enterprise risk point display unit performs three-dimensional visual display on the equipment facility security risk data, wherein the three-dimensional visual display content is the risk information of the equipment facilities of the enterprises related to the chemicals, and meanwhile, the positioning of the equipment facilities is realized; the scheme displays the spatial distribution of the chemical storage area and the enterprise security risk, realizes the dynamic display of the security risk level of the chemical storage area, is not only a three-dimensional picture, but also the amount of the date is dynamically changed, omits the complex process of data analysis, and leads the security risk to be visually and dynamically displayed; the safety risk information display of enterprise equipment facilities is realized, the safety production of chemical related enterprises is guaranteed, the equipment facilities are positioned, the safety risk positions are directly and rapidly found, and the source points of chemical accident disasters are timely eliminated.

Example 6

As shown in fig. 6, on the basis of embodiment 3, an emergency treatment management sub-module provided in an embodiment of the present invention includes:

the accident dynamic plotting unit is responsible for providing plotting tools for chemical accidents or three-dimensional visual display of the accidents, determining the positions of the accidents through longitude and latitude positioning, three-dimensional map point position inquiring and other modes, sending the position information to emergency rescue personnel, and rapidly calling peripheral emergency resources to realize auxiliary emergency treatment decisions;

the emergency evacuation route unit is responsible for providing an emergency evacuation route, automatically generating the emergency evacuation route after the position of the accident mapping unit is determined, assisting in displaying by dynamic flashing, and providing a reference for emergency disposal decisions of emergency commanders;

the working principle and beneficial effects of the technical scheme are as follows: the accident dynamic plotting unit of the embodiment provides a plotting tool for chemical accidents or three-dimensional visual display of the accidents, determines the position of the accidents through longitude and latitude positioning, three-dimensional map point position inquiring and other modes, sends the position information to emergency rescue workers, and rapidly calls peripheral emergency resources to realize auxiliary emergency treatment decision; the emergency evacuation route unit provides an emergency evacuation route, automatically generates the emergency evacuation route after the position of the accident mapping unit is determined, assists in dynamic flashing display, and provides a reference for emergency treatment decisions of emergency commanders; the scheme realizes the positioning of the chemical accident occurrence position and the generation of the emergency evacuation route, and the positioning and emergency evacuation route can greatly improve rescue quality and reduce property loss; through the accurate positioning of the chemical accident or the three-dimensional accident evolution simulation process, positioning information is provided for rescue workers, the rescue workers arrive timely and accurately, risk source points are eliminated timely, influence and loss caused by negative accidents are eliminated rapidly, the adjustment of peripheral emergency resources can be realized, the optimal utilization of the resources is realized, emergency treatment decisions can be assisted, and the intellectualization of accident treatment is realized; the emergency evacuation route is also generated, the escape route is provided for rescue workers and the rescued workers, the time of exposure of the workers in accident disasters is reduced, the emergency evacuation route can be dynamically displayed in a flashing mode, the rescue workers and the rescued workers can acquire the emergency evacuation route intuitively, and the rescue and escape efficiency is improved.

Example 7

As shown in fig. 7, on the basis of embodiment 1, the three-dimensional accident evolution simulation module provided by the embodiment of the present invention includes:

the flow data checking sub-module is responsible for checking the content of three-dimensional scene simulation display according to the analysis results of the normal working condition state and the accident state related to the display of the chemical accident state through the accident evolution model, wherein the content mainly comprises flow data such as internal gas and liquid particle-level flow, change condition flow, temperature, pressure and the like;

the accident evolution process serial submodule is responsible for serially connecting three accident evolution processes of oil gas leakage, gas cloud explosion and fire, and reflecting the evolution effects of the front, middle and rear three stages of complete accident occurrence;

the working principle and beneficial effects of the technical scheme are as follows: the flow data checking sub-module of the embodiment checks the content of three-dimensional scene simulation display according to the analysis results of the normal working condition state and the accident state related to the chemical accident state simulation display through an accident evolution model, wherein the content mainly comprises flow data such as internal gas and liquid particle-level flow, change condition flow, temperature, pressure and the like; the accident evolution process serial submodule connects three accident evolution processes of oil gas leakage, gas cloud explosion and fire disaster in series, and reflects the evolution effects of the front, middle and rear three stages of complete accident occurrence; the scheme realizes the evolution simulation of the progress of the chemical accident on a three-dimensional scene, and the evolution simulation comprises the following steps: the leakage diffusion process simulation, the gas cloud explosion simulation and the fire process simulation of chemicals realize the evolution and development process of complete chemical accidents, truly realize the good effect of three-dimensional scene simulation display, are beneficial to the prediction and judgment of the development of chemical accidents and improve the treatment effect of chemical accidents.

Example 8

On the basis of embodiment 7, the accident evolution model provided by the embodiment of the invention has the following calculation process:

defining a time series t=t of accident evolution in a chemical accident ₁ ，t ₂ ，…t _n A time t _n With the previous p time sequences t _n-p Is a numerical value of (1) and the random disturbance epsilon of the first q inputs _n-q Correlation, predicting the next point in time, the time series of values t _n The calculation method of the autoregressive process affected by p time sequences:

t _n ＝η ₁ t _n-1 +η ₂ t _n-2 +…+η _p t _n-p +e _n (1)

wherein eta ₁ ，η ₂ ，…，η _p Representing autoregressive coefficients, e _n Representing an error term;

error term e over time sequences of different accident evolution _n Correlation exists, and the calculation method of the moving average value comprises the following steps:

e _n ＝μ ₁ ε _n-1 +μ ₂ ε _n-2 +…+μ _q ε _n-q +ε _n (2)

wherein mu ₁ ，μ ₂ ，…，μ _q Mean coefficient, epsilon, representing movement _n Representing white noise sequence, epsilon _n-q Representing white noise sequence epsilon _n The nth-q white noise of (a);

the simultaneous expression (1) and the expression (2) obtain a calculation formula of the accident evolution model:

wherein m represents the sequential value of the autoregressive coefficients, i represents the sequential value of the error term, ε _n-i Representing white noise sequence epsilon _n The n-i th white noise of (a);

the working principle and beneficial effects of the technical scheme are as follows: the accident evolution model of the embodiment firstly defines a time sequence of accident evolution in a chemical accident, calculates a numerical value of a certain time sequence before a certain time and a certain input random interference, predicts a next time point, calculates an autoregressive process that the value of the time sequence is influenced by the time sequence, and calculates a moving average value of an error term, thereby obtaining the accident evolution model; the accident evolution model of the scheme realizes the evolution simulation of the chemical accident disasters at different moments, is beneficial to the real-time display of three-dimensional scenes, improves the authenticity of the evolution simulation, realizes the evolution simulation of the progress of the chemical accident by adopting the three-dimensional accident evolution simulation, can effectively obtain the loss and the destructiveness caused by the accident, and takes time for actively taking effective measures.

Example 9

As shown in fig. 8, the embodiment of the invention provides an accident disaster evolution simulation method based on digital twinning, which comprises the following steps:

s100: uniformly managing the uploaded security risk data; meanwhile, uploading of safety risk data, management of safety risk information and accident emergency resource management are realized; the security risk data is from a chemical storage area;

s200: constructing a three-dimensional scene of a chemical storage area, and realizing three-dimensional visual display of risk data of the chemical storage area by adopting a digital twin technology, wherein the risk data of the chemical storage area comprises: the evaluation result of the safety risk data and various risk sources of the chemical storage area;

s300: the evolution simulation of the progress of the chemical accident is realized on a three-dimensional scene, and comprises the following steps: simulation of leakage and diffusion processes of chemicals, simulation of gas cloud explosion and simulation of fire processes;

the working principle and beneficial effects of the technical scheme are as follows: firstly, the embodiment realizes that a user performs unified management on the uploaded security risk data; meanwhile, uploading of safety risk data, management of safety risk information and accident emergency resource management are realized; the safety risk data is from a chemical storage area, and the safety risk comprises accidents such as fire explosion, leakage, equipment damage, fire and the like; secondly, constructing a three-dimensional scene of the chemical storage area, and realizing three-dimensional visual display of risk data of the chemical storage area by adopting a digital twin technology, wherein the risk data of the chemical storage area comprises: the evaluation result of the safety risk data and various risk sources of the chemical storage area; finally, realizing evolution simulation of the progress of the chemical accident on a three-dimensional scene, wherein the evolution simulation comprises: simulation of leakage and diffusion processes of chemicals, simulation of gas cloud explosion and simulation of fire processes; the scheme firstly realizes unified management of the safety risk data by the user, is favorable for accurate prediction of the safety risk, centrally manages the data, improves the privacy of the data, and is also a good protection for the chemical storage area; the three-dimensional scene is constructed to help realize three-dimensional visualization of risk data of the chemical storage area, a digital twin technology is adopted to display impending risk of the chemical storage area, so that an administrator pre-judges accidents in advance, and takes corresponding positive measures to minimize the influence of the accidents, thereby avoiding damage to the environment and people, realizing omnibearing display of site conditions through the three-dimensional scene, saving complicated site investigation, delaying damage caused by the accidents and reducing loss caused by the accidents; the three-dimensional accident evolution simulation is adopted to realize the evolution simulation of the chemical accident progress, so that the loss and the destructiveness caused by the accident can be effectively obtained, and the time is taken for actively taking effective measures.

Example 10

As shown in fig. 9, on the basis of embodiment 9, the process for unified management of uploaded security risk data provided in the embodiment of the present invention includes:

s101: the security risk data are imported in a classified mode through a security risk collection table, and are managed by a security risk information database, and the security risk data serve as the basis for risk source identification and monitoring, so that periodic inspection of risk points is achieved; generating a risk point list of the chemical storage area by a security risk information database, and supporting an import function, an export function, a query function and a view function of the risk point list;

s102: the risk point list imported by the security risk information database performs functional operations, wherein the functional operations comprise: the user with the operation authority adds, deletes, modifies, looks over, maintains and the like the risk point list; wherein log maintenance comprises: function operation type, function operator, function operation time, etc.;

s103: monitoring the chemical storage area by the query function, the monitoring comprising: implementation of measures such as emergency plans, emergency teams, emergency supplies, emergency specialists and the like;

the working principle and beneficial effects of the technical scheme are as follows: firstly, security risk data is classified and imported into a security risk distribution map module through a security risk acquisition table, and security risk information database management is carried out, wherein the security risk data is used as a basis for risk source identification and monitoring; generating a risk point list of the chemical storage area by a security risk information database, and supporting an import function, an export function, a query function and a view function of the risk point list; and then performing functional operation on the risk point list imported by the security risk information database, wherein the functional operation comprises the following steps: the user with the operation authority adds, deletes, modifies, looks over, maintains and the like the risk point list; wherein log maintenance comprises: function operation type, function operator, function operation time, etc.; finally, the chemical storage area is supervised by a query function, wherein the supervision comprises: implementation of measures such as emergency plans, emergency teams, emergency supplies, emergency specialists and the like; the method and the system provide background support for unified management of safety risk data, form a risk point list according to the safety risk data, provide a direction for evolution simulation of chemical accident disasters, and promote the effect of the evolution simulation, so that the progress of the accident disasters is accurately predicted, and the accident disasters are timely and efficiently eliminated; in addition, the safety risk data uploading submodule is imported in a classified mode through the safety risk collection table, so that identification of the risk sources is realized, data basis is provided for identification of the risk sources, identification accuracy of the risk sources is improved, and prediction accuracy of chemical accident disasters is improved; meanwhile, a risk point list is generated, and the periodic inspection of risk points is adopted to realize the prevention and control and informatization management of safe winnowing; the security risk data management sub-module is provided with functional operation, so that humanized management of a risk list is realized, the identification efficiency of a risk source is improved, log maintenance is supported, daily management of the risk source is realized, the management efficiency of security risk data is improved, and the complicated manual operation is saved; the daily safety risk management and control submodule monitors the implementation of safety risk management and control measures, ensures the accurate in-place of the safety risk management and control measures, realizes the treatment of a risk source, improves the overall supervision level of a chemical storage area, and powerfully ensures the safety and stability of the chemical storage area.

Example 11

As shown in fig. 10, on the basis of embodiment 9, a process for constructing a three-dimensional scene of a chemical storage area according to an embodiment of the present invention includes:

s201: acquiring images of all objects in a chemical storage area, and extracting a highlight part of the images; dividing the image highlight part and the reverse highlight part to obtain a new pixel bright point value;

s202: according to the new pixel bright point value, fusing the pixel values to obtain a result diagram of image scene restoration of all objects in the chemical storage area;

s203: acquiring three-dimensional data of all objects and scenes in a chemical storage area, establishing a three-dimensional model of the objects and the scenes, and inputting a result graph into the three-dimensional data of all objects;

s204: establishing a three-dimensional model of an object and a scene, and coupling a coordinate system of the three-dimensional model of the object into a coordinate system of the three-dimensional model of the scene to realize all objects embedded into a chemical storage area in the three-dimensional model of the scene;

the working principle and beneficial effects of the technical scheme are as follows: the method comprises the steps of firstly, obtaining images of all objects in a chemical storage area, and extracting a highlight part of the images; dividing the image highlight part and the reverse highlight part to obtain a new pixel bright point value; secondly, fusing pixel values according to the new pixel brightness values to obtain a result diagram of image scene restoration of all objects in the chemical storage area; then, three-dimensional data of all objects and scenes in the chemical storage area are obtained, a three-dimensional model of the objects and the scenes is established, and a result graph is input into the three-dimensional data of all objects; finally, building a three-dimensional model of the object and the scene, and coupling a coordinate system of the three-dimensional model of the object into a coordinate system of the three-dimensional model of the scene to realize all objects embedded into a chemical storage area in the three-dimensional model of the scene; according to the scheme, the three-dimensional scene of the chemical storage area is constructed, the three-dimensional visual display of the chemical storage area risk data is realized by adopting the digital twin technology, the three-dimensional visual dynamic display of the chemical storage area is facilitated, the display of the safety risk level is realized, the three-dimensional visual dynamic display is realized, the full-scale display of the safety risk distribution is facilitated, the judgment of the chemical safety risk is facilitated, and the corresponding measures are adopted efficiently; the emergency management submodule realizes the positioning of accidents and emergency rescue workers, facilitates the rapid retrieval of emergency resources and assists the decision of emergency treatment, in addition, an emergency evacuation route is generated, the rescue efficiency is improved, and the loss of life and property is reduced.

Example 12

As shown in fig. 11, on the basis of embodiment 9, a process for implementing evolution simulation of chemical accident progress on a three-dimensional scene provided by the embodiment of the present invention includes:

s301: according to the accident state simulation and display related analysis results of the normal working condition state and the accident state of the chemical product, the content of the three-dimensional scene simulation display is checked through an accident evolution model, and the content mainly comprises flow data such as internal gas and liquid particle level flow, change condition flow, temperature, pressure and the like;

s302: the three accident evolution flows of oil gas leakage, gas cloud explosion and fire disaster are connected in series, so that the evolution effects of the front, middle and rear three stages of complete accident occurrence are reflected;

the working principle and beneficial effects of the technical scheme are as follows: firstly, according to an accident evolution model, according to analysis results of normal working condition states and accident states related to chemical accident states simulation and display, checking three-dimensional scene simulation display contents mainly comprising flow data of internal gas and liquid particle level flow, changing condition flow, temperature, pressure and the like; secondly, three accident evolution flows of oil gas leakage, gas cloud explosion and fire disaster are connected in series, so that the evolution effects of the front, middle and rear three stages of complete accidents are reflected; the scheme realizes the evolution simulation of the progress of the chemical accident on a three-dimensional scene, and the evolution simulation comprises the following steps: the leakage diffusion process simulation, the gas cloud explosion simulation and the fire process simulation of chemicals realize the evolution and development process of complete chemical accidents, truly realize the good effect of three-dimensional scene simulation display, are beneficial to the prediction and judgment of the development of chemical accidents and improve the treatment effect of chemical accidents.

Example 13

Based on embodiment 11, the three-dimensional scene of the chemical storage area in the embodiment of the invention carries out refined 1:1 three-dimensional modeling on the airport, the blessing oil and gas warehouse and the peripheral roads according to real scenes, plane diagrams and scene photos of the airport district (2 family oil warehouse) and the roc new district blessing film district (3 family LNG enterprises).

Modeling requirements of three-dimensional scenes:

1. the three-dimensional modeling takes a safe production plan as a blue book, and builds exercise scenes with the quantity not lower than that of the plan, wherein the model comprises characters, vehicles, natural terrains, buildings, rescue equipment, installation equipment, emergency resources and the like.

2. The finished model needs to truly and accurately represent the appearance of a building, a device, etc., and part of very fine detail physical structures are allowed to be ignored on the basis of not affecting the authenticity geometry of the building, the device, etc. The geometric structures such as pipeline intersections, storage tank appearance and structures, device structures, building outer structures, stereoscopic roofs, concave-convex contours and the like cannot be ignored and cannot be replaced by mapping, geometric entities are needed to be used for representing, mapping requirements are clear and attractive, and mapping in a non-real material library can be adopted for representing.

3. Modeling is performed according to the proportion of the real equipment 1:1, and the unit is m.

1) The scene model is a coarse model with the material precision not lower than 500 faces and lower than 128, the precision is required to be within 0.5 meter, and the identifiable precision of 500 meters is met.

2) The number of the surface patches of the terrain model is not less than 1000, the material precision reaches 256, the precision is within 0.5 meter, and the identifiable precision of 50 meters is satisfied

3) The number of other molding surface chips is higher than 2000, the fineness of the material reaches more than 512, the precision is required to be within 0.5 meter, and the identifiable precision of 5 meters is met.

4. Digital Elevation Model (DEM) data is required to reach 30 m accuracy in resolution and orthographic projection image data is required to reach 25 m accuracy in resolution; the image and DEM data need to provide grid data in TIF format, and the data coordinate system must be the standard gcs_ wgs84 coordinate system.

5. Constructing a three-dimensional training scene, macroscopically displaying surrounding geographic information of the simulated scene, and microscopically displaying a real three-dimensional scene model of the simulated scene;

according to the emergency treatment plan scene building requirements, three-dimensional modeling display can be carried out on key terrains, landforms and features (including environmental factors such as lakes, forests, grasslands, high-voltage lines, wetlands, buildings and residential areas) of a typical area and the periphery;

6. supporting three-dimensional scene display of pipelines, auxiliary facilities, enterprises and the like; supporting to display administrative division information around training scenes; supporting the display of related information such as roads, railways, rivers, water sources and the like around the training scene.

Road modeling requirements for three-dimensional scenes of chemical storage areas: road traffic modeling mainly includes the following: modeling a road and a traffic sign thereof; mainly comprises various bridges, street lamps, guideboards, stations, fences, traffic signal lamps, traffic sentry boxes, road indication marks (such as stop prohibition marks and one-way road marks) and the like. The direction indicated by the guideboard and the road traffic sign must be correct and is consistent with the actual direction;

modeling specification: the auxiliary facilities of the highway, the street lamps or the traffic lights and the like are represented according to a topographic map (if street lamp information is not arranged on the topographic map, the positions and the distances of the street lamps are determined according to DOM and field actual measurement data), the symmetrically-shaped lamps are made into a single-chip crisscross model, if the single-chip crisscross lamp model cannot be made, the actual modeling is carried out, but the number of the surface patches is as small as possible, and the surface patches are controlled within 150 surfaces.

Basic functions of three-dimensional scene of chemical storage area:

scene roaming: the three-dimensional scene browsing is supported, the mouse dragging browsing is supported, and the free dragging, angle conversion, zooming-in and zooming-out and other modes of browsing of the scene can be supported.

Viewpoint management: the viewpoint stores the position and the view angle of the target point concerned by the user, and the user can quickly position a certain concerned point stored by the viewpoint by using the viewpoint and has the functions of adding the viewpoint, deleting the viewpoint, switching the viewpoint and the like.

Measuring tool: the area measurement and the distance measurement are supported, and the support can be provided for emergency treatment and decision-making of on-site command, prediction warning range of special post personnel, breaking and dismantling position, distance prediction, personnel evacuation range and the like.

Compass: and providing a direction for the three-dimensional scene, and following the rotation of the three-dimensional scene, wherein the pointer always points to the north of the scene.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An accident disaster evolution simulation system based on digital twinning, which is characterized by comprising:

The three-dimensional accident evolution simulation module is responsible for realizing evolution simulation of chemical accident progress on a three-dimensional scene;

wherein, three-dimensional accident evolution simulation module includes:

the flow data checking sub-module is responsible for checking the content of the three-dimensional scene simulation display according to analysis results of the normal working condition state and the accident state related to the chemical accident state simulation display through the accident evolution model;

the accident evolution model is calculated by the following steps:

t _n ＝η ₁ t _n-1 +η ₂ t _n-2 +…+η _p t _n-p +e _n (1)

e _n ＝μ ₁ ε _n-1 +μ ₂ ε _n-2 +…+μ _q ε _n-q +ε _n (2)

a security risk background management module comprising:

The daily safety risk management and control sub-module is responsible for monitoring the chemical storage area through the query function;

the periodic check comprises: checking items, checking periods and risk management measures;

the supervision comprises: implementation of emergency plans, emergency teams, emergency supplies and emergency expert measures;

a security risk profile module comprising:

a security risk situation presentation sub-module comprising:

a security risk spatial distribution sub-module comprising:

2. The digital twinning-based accident disaster evolution simulation system according to claim 1, wherein the chemical storage area risk data includes: the evaluation result of the safety risk data and various risk sources of the chemical storage area;

3. The digital twinning-based accident disaster evolution simulation system according to claim 1, wherein the emergency treatment management sub-module comprises:

4. The accident disaster evolution simulation method based on digital twinning is characterized by comprising the following steps of:

The evolution simulation of the progress of the chemical accident is realized on a three-dimensional scene, and comprises the following steps: simulation of leakage and diffusion processes of chemicals, simulation of gas cloud explosion and simulation of fire processes;

a process for implementing evolutionary simulation of chemical incident progression on a three-dimensional scene, comprising:

the three accident evolution flows of oil gas leakage, gas cloud explosion and fire disaster are connected in series, so that the evolution effects of the front, middle and rear three stages of complete accident occurrence are reflected;

a process for constructing a three-dimensional scene of a chemical storage area, comprising:

acquiring images of all objects in a chemical storage area, and extracting a highlight part of the images; dividing the image highlight part and the reverse highlight part to obtain a new pixel bright point value;

according to the new pixel bright point value, fusing the pixel values to obtain a result diagram of image scene restoration of all objects in the chemical storage area;

Acquiring three-dimensional data of all objects and scenes in a chemical storage area, establishing a three-dimensional model of the objects and the scenes, and inputting a result graph into the three-dimensional data of all objects;

and establishing a three-dimensional model of the object and the scene, and coupling a coordinate system of the three-dimensional model of the object into a coordinate system of the three-dimensional model of the scene to realize all objects embedded into a chemical storage area in the three-dimensional model of the scene.