Method and system for rapid analysis and scheduling in the emergency response phase of a nuclear accident

Abstract

The present application belongs to the technical field of nuclear emergency, and discloses a kind of quick analysis scheduling method for nuclear accident emergency response stage, the present application can quickly call database analysis result in the early stage of accident, show accident situation, generate preliminary countermeasure suggestion;In the nuclear accident emergency response, according to the accident state analysis result, source item calculation result and nuclear accident evaluation result, the corresponding emergency plan is quickly searched from the nuclear emergency plan library, the decision problem background data is provided, the key points are assisted to be clear, the model is modified and improved, the multidisciplinary knowledge such as computer technology, management science and artificial intelligence technology is comprehensively used, the nuclear emergency command decision technology based on knowledge engineering is established, the scheme is listed out in the way, the analysis result is displayed in two or three-dimensional geographic information system, and decision support is provided for command personnel and professional personnel.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of nuclear emergency, and particularly relates to a rapid analysis and scheduling method and system for a nuclear accident emergency response stage. BACKGROUND

[0002] According to the modular and distributed development concept of the nuclear emergency command information system, the auxiliary decision-making systems are respectively constructed by departments according to the business direction, and interfaces are provided for other related business systems. The nuclear emergency command department calls multiple auxiliary decision-making analysis software such as accident state analysis, source item calculation analysis, radiation field calculation, radiation consequence evaluation, and countermeasure analysis to carry out detailed analysis and calculation, and gradually generates and continuously updates decision support information, and finally forms an overall technical support system through interconnection.

[0003] In the nuclear accident emergency response process, the command department should be provided with comprehensive technical support from various professionals. The current technical method is to separately deploy and individually analyze each auxiliary decision-making system, that is, the analysis contents of each system are not related, and the nuclear accident emergency response cannot be quickly analyzed and scheduled. Therefore, for the nuclear accident emergency response process, in order to maximize the protection of public interests from or less loss when a nuclear accident occurs, the nuclear emergency command decision-maker needs to make a decision on nuclear emergency in the shortest time. In addition to considering the type, nature of the nuclear accident, and the random uncertainty of the weather and environmental changes of the nuclear accident site, it is a typical risk, unstructured, and multi-attribute system decision-making problem. Therefore, under the complex conditions of time pressure, great responsibility, and frequent changes, a scientific decision-making theory is used, and the accident state analysis data, source item calculation analysis data, radiation field calculation data, radiation consequence evaluation data, and countermeasure analysis data are integrated and processed to design a rapid analysis and scheduling method to provide decision support for nuclear emergency command, which is a key technology developed by the present application.

[0004] Through the above analysis, the problems and defects of the prior art are as follows:

[0005] The current technical method is to separately deploy and individually analyze each auxiliary decision-making system, that is, the analysis contents of each system are not related, and the nuclear accident emergency response cannot be quickly analyzed and scheduled, so the method is directed to the nuclear accident emergency response process. SUMMARY

[0006] In view of the problems in the prior art, the present application provides a rapid analysis and scheduling method for a nuclear accident emergency response stage.

[0007] The present application is implemented as follows: a rapid analysis and scheduling method for a nuclear accident emergency response stage comprises the following steps:

[0008] Step 1, accident state analysis;

[0009] Step 2, Source Term Calculation and Analysis;

[0010] Step 3, Radiation field calculation;

[0011] Step 4, Consequence Evaluation;

[0012] Step 5, Countermeasure Analysis.

[0013] Furthermore, the accident status analysis:

[0014] First, simulate nuclear accident conditions, establish an accident condition model, and store data information on various types of nuclear accident conditions in the database.

[0015] Secondly, the accident model is invoked, and the corresponding accident model is found through matching calculation based on the accident information.

[0016] Finally, the accident status model is matched for analysis, and the analysis results are stored in the backend database for easy access later.

[0017] Furthermore, the source term calculation and analysis:

[0018] First, receive the operational parameter data from the accident site, and use the source term calculation method, combined with the actual source term data, to form accurate source terms for the accident site;

[0019] Then, the actual source item information is stored in the backend database.

[0020] Furthermore, the radiation field is calculated as follows:

[0021] The actual source data and external environmental meteorological data in the database are input into a complex mathematical model to obtain radiation field data, which is then stored in the database for easy access later.

[0022] Furthermore, the consequences are evaluated as follows:

[0023] By calling radiation field calculation data from the database, the concentration of radionuclides is incorporated into the equivalent dose of key organs and tissues, the individual whole-body effective dose, and the collective dose evaluation model to assess the impact of radionuclides on relevant personnel.

[0024] Furthermore, the countermeasures are analyzed as follows:

[0025] First, based on the accident status analysis results, combined with the nature of the accident, the evolution of the situation, the accident response plan, and expert advice, an accident response plan is generated, and after optimization, accident response countermeasures are produced. Then, based on radiation field calculation data, consequence evaluation data, and available emergency protection measures, radiation protection countermeasures are generated.

[0026] Another object of the present application is to provide a quick analysis scheduling system for a nuclear accident emergency response stage, comprising:

[0027] An accident state analysis module is configured to simulate a nuclear accident state, establish an accident state model, store data information of various types of nuclear accident states in a database, call the accident model, and find a corresponding accident model through matching calculation according to accident information.

[0028] A source term calculation analysis module is configured to receive accident site operation parameter data, form an accurate source term at the accident site by using a source term calculation method and combining actual source term data, and store the actual source term information in a background database.

[0029] A radiation field calculation module is configured to bring actual source term data and external environmental meteorological data in the database into a complex mathematical model, obtain radiation field data, and store the radiation field data in the database for subsequent calling.

[0030] A consequence evaluation module is configured to call the radiation field calculation data in the database, bring the radionuclide concentration into an equivalent dose of a key organ and tissue, a personal whole-body effective dose, and a collective dose evaluation model, and evaluate the influence of the radionuclide on related personnel.

[0031] A countermeasure analysis module is configured to generate an accident disposal scheme according to the accident state analysis result, combine accident nature, accident development evolution process, accident disposal plan, and expert suggestion information, optimize the accident disposal scheme to generate an accident disposal countermeasure, and generate a radiation protection countermeasure according to the radiation field calculation data, the consequence evaluation data, and the available emergency protection measures.

[0032] Another object of the present application is to provide a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to make the processor execute the steps of the quick analysis scheduling method for a nuclear accident emergency response stage.

[0033] Another object of the present application is to provide a computer readable storage medium storing a computer program, wherein the computer program is executed by a processor to make the processor execute the steps of the quick analysis scheduling method for a nuclear accident emergency response stage.

[0034] Another object of the present application is to provide an information data processing terminal for realizing the quick analysis scheduling system for a nuclear accident emergency response stage.

[0035] In combination with the above technical solutions and the technical problems solved, the technical solutions of the application have the following advantages and positive effects:

[0036] First, the purpose of the application is to quickly call each system, provide functions of quickly analyzing accident state, evaluating accident consequences and researching countermeasures in a short time for the same nuclear accident, and provide technical support for nuclear emergency command decision under nuclear accident.

[0037] In the rapid research and judgment stage in the early stage of the accident, the closest database analysis case can be quickly matched and called according to the initial information of the accident, the accident situation is displayed in combination with the atmospheric water data, and the preliminary countermeasure suggestion is generated; in the nuclear accident emergency response, the corresponding emergency plan is quickly searched from the nuclear emergency plan library according to the accident state analysis result, the source item calculation result and the nuclear accident evaluation result, the decision problem background data is provided, the key points are assisted to be clarified, the model is modified and improved, the multi-disciplinary knowledge such as computer technology, management science and artificial intelligence technology is comprehensively used, the nuclear emergency command decision technology based on knowledge engineering is established, the scheme is listed out, and the analysis result is displayed and analyzed in two or three-dimensional geographic information system, so as to provide decision support for command personnel and professional personnel

[0038] Second, the creativity of the claims of the application is also reflected in the following important aspects:

[0039] (1) The expected income and commercial value of the technical solutions of the application after transformation are:

[0040] The application can be used for rapid analysis and scheduling application of each calculation subsystem in the case of nuclear emergency response of nuclear power plant, one-key full-process automatic scheduling is realized, the first result can be provided to the nuclear emergency command department in a short time, the time and manpower operation consumed by data export and import of each calculation subsystem in the separate time are greatly reduced, and valuable time is saved for nuclear emergency response.

[0041] (2) The technical solutions of the application fill the technical blank in the industry at home and abroad:

[0042] The application fills the domestic research blank, and for the first time, the multi-element heterogeneous software such as accident state analysis, source item calculation analysis, radiation field calculation, radiation consequence evaluation and countermeasure analysis is realized automatic and rapid scheduling, and the blank is filled.

[0043] Third, the technical solutions of the application solve the existing technical problems:

[0044] 1. Low efficiency of nuclear accident emergency response

[0045] The existing emergency response method is mostly artificial, lacks systematic analysis tools, and cannot quickly obtain the source item, radiation diffusion range and influence area of the nuclear accident, which delays the emergency decision time.

[0046] 2. Lack of dynamic and accurate radiation dispersion calculation

[0047] Existing radiation dispersion analysis is mostly based on static or two-dimensional models, which cannot accurately simulate the dynamic dispersion behavior of radioactive substances in complex three-dimensional spaces, resulting in insufficient accuracy in radiation field calculation.

[0048] 3. Incomplete radiation consequence evaluation and countermeasure development

[0049] Traditional evaluation methods lack effective integration with GIS (Geographic Information System), and cannot accurately analyze the administrative division range and population distribution covered by the radiation field, affecting the scientificity of personnel evacuation and resource scheduling.

[0050] 4. Lack of intelligence and dynamic optimization in emergency response decision-making

[0051] Existing countermeasure development is mostly based on static analysis results, lacking real-time optimization support for dynamic changing scenarios, making it difficult to adapt to complex emergency situations.

[0052] Significant technological progress:

[0053] 1. Rapid multi-step integrated analysis improves emergency response efficiency

[0054] The invention transforms the nuclear accident emergency response process from manual analysis to automated integrated analysis through systematic steps of accident state analysis, source term calculation, radiation field calculation, consequence evaluation, and countermeasure analysis, significantly shortening the response time.

[0055] The modular design of the system supports rapid data processing and multi-step linkage, providing comprehensive and efficient technical support for emergency response.

[0056] 2. Dynamic radiation dispersion calculation model improves analysis accuracy

[0057] A three-dimensional plume dispersion model is used in combination with multi-threaded computing technology to simulate the dispersion behavior of radioactive substances in complex three-dimensional spaces in real time.

[0058] The generated gridded radiation concentration field dynamically demonstrates the temporal and spatial changes of radiation dispersion, providing a scientific basis for accurate prediction of emergency scenarios.

[0059] 3. Radiation field combined with GIS for comprehensive consequence evaluation

[0060] Using GIS administrative division data, the radiation field grid concentration is superimposed and analyzed to accurately identify the affected areas and population distribution.

[0061] The generated evaluation results include the area covered, population number, location of key facilities, and risk level, providing quantitative support for emergency resource allocation and personnel evacuation.

[0062] 4. Intelligent countermeasure analysis and dynamic optimization to enhance decision-making scientificity

[0063] The system automatically generates emergency countermeasure schemes, including personnel evacuation routes, resource allocation suggestions, and pollution control measures, based on the consequence evaluation results.

[0064] By simulating the impact of different strategies on risk areas, the emergency scheme is dynamically optimized to ensure rapid adaptability and scientific decision-making ability for complex scenarios.

[0065] 5. Data integration and real-time scheduling support multiple scenarios

[0066] The system integrates all data of accident state, radiation field calculation, consequence evaluation and countermeasure analysis, supports real-time update and multiple optimization.

[0067] Through the interactive interface, the analysis results and scheduling suggestions are displayed, and users can dynamically adjust the countermeasures and quickly deploy action plans according to their needs.

[0068] Through innovative rapid analysis and scheduling methods, the efficiency and accuracy of nuclear accident emergency response are significantly improved in industrial applications. The main technical progress is reflected in:

[0069] Efficiency improvement: Full-process automation from accident state analysis to countermeasure generation, significantly shortening the emergency response time.

[0070] Accuracy improvement: Using dynamic three-dimensional models and GIS overlay analysis, high-precision radiation field prediction and consequence evaluation are provided.

[0071] Intelligence and dynamic optimization: Through real-time data update and simulation optimization, intelligent decision-making for complex emergency scenarios is supported.

[0072] These technical progress provides strong technical support for nuclear accident emergency management, promotes the intelligent development of nuclear emergency field, and has wide industrial application prospects, including nuclear facility safety management, environmental protection, public safety and other fields. BRIEF DESCRIPTION OF DRAWINGS

[0073] Figure 1 is the flowchart of the rapid analysis and scheduling method for the nuclear accident emergency response stage provided by the embodiment of the present application.

[0074] Figure 2 is the flowchart of the radiation consequence evaluation method provided by the embodiment of the present application.

[0075] Figure 3 is the structural block diagram of the rapid analysis and scheduling system for the nuclear accident emergency response stage provided by the embodiment of the present application.

[0076] Figure 4 is a quick calculation process configuration interface diagram of each subsystem task provided by the embodiment of the present application.

[0077] Figure 5 is an automatic execution screenshot of the emergency quick calculation task provided by the embodiment of the present application. DETAILED DESCRIPTION

[0078] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0079] Reference is made to Figure 1 , which shows a flowchart of a quick analysis and scheduling method in a nuclear accident emergency response phase according to an embodiment of the present application.

[0080] 1. Accident state analysis

[0081] Accident state analysis is the first step of nuclear accident emergency response, which quickly identifies the accident type and state through simulation and modeling. First, a nuclear accident state model is established, and the data information of the accident type (such as radioactive material leakage, equipment damage, etc.) that occurs is stored in a database. According to the accident information received in real time, the system calls the accident model in the database for matching, and quickly locates the corresponding accident state model. Through the matching result, detailed analysis is carried out, and the analysis data (such as accident scale, influence range, etc.) are stored to the background database, providing basic support for the subsequent steps.

[0082] 2. Source term calculation analysis

[0083] Source term calculation analysis is an important step to determine the source of radioactive material leakage. According to the results of the accident state analysis, the key source term information (such as leakage location, leakage amount, type of radioactive material, etc.) is extracted. Combined with the environmental data (such as wind speed, air temperature, humidity) of the accident occurrence, a radiation diffusion model is used for simulation calculation to generate the basic data of the leakage source. The source term analysis results include leakage intensity, leakage duration and leakage material type, etc., and the data will be written to the background to provide support for further calculation of the radiation field.

[0084] 3. Radiation field calculation

[0085] Radiation field calculations utilize source term data to simulate the diffusion behavior of radioactive materials in space using a plume diffusion model. Multithreaded programming techniques are employed to improve computational efficiency. The three-dimensional space is divided into grids, and radiation concentration is calculated for each grid. Through real-time simulation, a time-series radiation concentration field is generated, demonstrating the dynamic process of radioactive material diffusion. The calculation results include radiation concentration and time-varying curves for each grid point, ultimately forming a radiation field data file and storing it in a database to provide input data for consequence assessment.

[0086] 4. Consequence Evaluation

[0087] Consequence assessment aims to analyze the potential impacts of radiation fields on populations, the environment, and resources. Using radiation field calculations and GIS administrative division data, the area and population affected are assessed. Through overlay analysis, the system determines the exposure dose levels of high-risk areas (such as densely populated areas) and critical facilities (such as hospitals and schools), generating a quantitative assessment report. The assessment results include population dose exposure, the extent of environmental pollution, and the regional risk level, providing a scientific basis for emergency decision-making.

[0088] 5. Countermeasure Analysis

[0089] Based on the consequences assessment results, the system generates emergency response recommendations, including personnel evacuation, resource allocation, and pollution control measures. Taking into account the specific circumstances of the affected area, it proposes optimal action plans, such as evacuation radius, evacuation routes, and the establishment of medical aid stations. For high-risk areas, the system simulates the effects of different control measures (such as area closure and wind direction control) and dynamically optimizes emergency response strategies. The results of the strategy analysis are presented in visual charts to help decision-makers quickly understand and take action.

[0090] 6. Data integration and scheduling feedback

[0091] Throughout the analysis process, the data generated at each step (accident status analysis, source term calculation, radiation field calculation, consequence assessment, and countermeasure analysis) are integrated into the backend database in real time, forming a dynamically updated emergency information system. The system displays analysis results and scheduling recommendations through an interactive interface, allowing decision-makers to adjust countermeasures based on actual needs and trigger system recalculation and optimization. This rapid analysis and scheduling method significantly improves the efficiency and scientific rigor of nuclear accident emergency response, providing strong technical support for mitigating the impact of accidents.

[0092] like Figure 1 As shown, the accident status analysis is completed in step 101.

[0093] Preferably, this step can be implemented in the following manner.

[0094] First, simulate nuclear accident conditions and establish an accident condition model, storing data on various nuclear accident condition types in a database. Maintain nuclear event information uniformly and formulate system operation plans based on different nuclear-related entities. These plans include seat information, subsystem information, and automatically match the appropriate system operation plan after the emergency response is initiated.

[0095] a. Configure the characteristic information of nuclear accidents, including digital accident type and characteristic parameters;

[0096] b. Configure system seat information;

[0097] c. A rapid model for maintaining the accident status of each subsystem, evaluating the accident consequences, and determining the response strategy;

[0098] Next, the source term calculation and analysis are completed in step 102.

[0099] Preferably, this step can be implemented in the following manner.

[0100] Source term calculation and analysis mainly includes source term estimation and source term correction. Based on information or simulation data from nuclear accidents, the amount of radioactive source term release is estimated, and then the temporal and spatial distribution of radionuclides within the region is analyzed and given.

[0101] Using the Monte Carlo mathematical model, the source terms data were calculated using the ORIGEN2 program, and the predicted source terms were corrected using measured data.

[0102] Next, the radiation field calculation and analysis are completed in step 103.

[0103] Preferably, this step can be implemented in the following manner.

[0104] This involves predicting the distribution and concentration of radionuclides in the environment (atmosphere or water), and estimating the radiation dose and cumulative dose received by populations at different locations within the evaluation area. This includes calculations of the atmospheric radiation field and the water body radiation field.

[0105] Atmospheric radiation field calculations are primarily aimed at port areas and maritime accident zones, enabling rapid analysis and evaluation of expected doses for different personnel within the affected area. Additionally, the port area includes a refined atmospheric calculation model, mainly used in the early stages of a nuclear accident to perform detailed calculations of the distribution of radionuclide concentrations in the atmosphere surrounding the port area under nuclear accident conditions.

[0106] Water radiation field calculations predict and analyze the flow field distribution near the accident site based on tidal data, coastline, and seabed topography of the port, or ocean current conditions in the affected sea area. This includes calculations for the port area and the marine waters. Port area water calculations are primarily used to estimate water pollution caused by nuclear accidents in the port area, mainly including ocean current field forecasting, radionuclide diffusion simulation, and dose calculation. Marine water calculations are specifically designed for marine nuclear accidents, combining hydrodynamic and ocean current hydrological data of the affected sea area to rapidly simulate and calculate the variation characteristics of the concentration distribution of leaked radioactive materials in seawater, and provide dose results such as the external radiation dose to personnel submerged in water within the evaluation range.

[0107] like Figure 2 As shown, the radiation consequences assessment is then completed in step 104.

[0108] Preferably, this step can be implemented in the following manner.

[0109] S201 takes the concentration of radionuclides calculated from the radiation field and inputs it into the equivalent dose of key organs and tissues, the individual whole-body effective dose, and the collective dose evaluation model to calculate the radiation consequence evaluation data.

[0110] Next, the strategy analysis is completed in step 105.

[0111] Preferably, this step can be implemented in the following manner.

[0112] The countermeasures analysis, based on accident status analysis data, source term calculation analysis data, and radiation field calculation data, combined with information such as the nature of the accident, the evolution of the situation, emergency response plans, and expert recommendations, generates an accident response plan, which is then optimized to produce accident response countermeasures. Based on the consequences assessment results and available emergency protection measures, radiation protection countermeasures are generated. It includes two calculation modes: rapid and refined, and consists of nuclear accident process simulation, accident response countermeasures, and radiation protection countermeasures.

[0113] 1. Nuclear accident process simulation

[0114] Based on actual or hypothetical nuclear accident scenarios, and considering available intervention methods and resources, the aforementioned calculation procedures and expert experience are used to simulate the process of a nuclear accident at a nuclear reactor facility. The results are output to the information visualization management subsystem for displaying the accident process, and the optimized response plan is stored in the emergency response plan database. This includes emergency simulations and routine simulations.

[0115] 2. Accident handling measures

[0116] This is used to generate response plans to prevent the accident from escalating and to control and mitigate its consequences. To facilitate rapid early response to nuclear emergencies, emergency response plans and relevant databases can be used to quickly generate response strategies.

[0117] The nuclear reactor device accident treatment countermeasure is generated according to the nuclear reactor device accident nature, the accident development evolution scene, the core safety state and the emergency resource condition, the accident treatment plan and the expert suggestion, the accident treatment scheme, and the accident treatment countermeasure is given, and the scheme is continuously optimized, and the accident treatment countermeasure is stored in the database.

[0118] 3. Radiation protection countermeasure

[0119] According to the radiation field calculation result and the radiation consequence evaluation result, the emergency protection measures are optimized, and the radiation protection countermeasure is generated. The emergency protection measure analysis mainly analyzes and calculates the expected dose and avoidable dose of the early radiation protection measures adopted by different personnel. The radiation protection countermeasure generation is to sort the radiation protection measures according to the analysis results of the early emergency protection measures, and to generate the radiation protection countermeasures of the emergency workers and the public according to the influence of political, military, economic and social factors.

[0120] As shown in Figure 3 The fast analysis and scheduling system for the nuclear accident emergency response stage provided by the embodiment of the application comprises:

[0121] An accident state analysis module is configured to simulate a nuclear accident state, establish an accident state model, store data information of various types of nuclear accident states in a database, call the accident model, find the corresponding accident model through matching calculation according to the accident information, match the accident state model for analysis, and store the analysis result in the background database for subsequent calling.

[0122] A source term calculation and analysis module is configured to receive accident site operation parameter data, form accurate source terms of the accident site by using a source term calculation method and combining actual source term data, and store the actual source term information in the background database.

[0123] A radiation field calculation module is configured to bring the actual source term data and external environmental meteorological data in the database into a complex mathematical model, obtain radiation field data, store the radiation field data in the database for subsequent calling, and analyze the radiation field data.

[0124] A consequence evaluation module is configured to call the radiation field calculation data in the database, bring the radionuclide concentration into an equivalent dose of a key organ and tissue, a personal whole-body effective dose and a collective dose evaluation model, and evaluate the influence consequences of the radionuclide on related personnel.

[0125] The countermeasure analysis module generates an accident disposal scheme according to the accident state analysis result, in combination with the accident nature, the accident development evolution process, the accident disposal plan and the expert suggestion information, and generates an accident disposal countermeasure after optimization; and then generates a radiation protection countermeasure according to the radiation field calculation data and the consequence evaluation data, in combination with the selectable emergency protection measures.

[0126] The accident state analysis module, as the first link of the system, is responsible for simulating the nuclear accident state and establishing an accident state model. The system pre-stores the data of all types of nuclear accident states in the database. When a nuclear accident occurs, the module calls the accident model in the database according to the real-time information of the accident, quickly finds the corresponding accident model through matching calculation, and performs state analysis. The analysis result is stored in the background database in a structured data, facilitating the subsequent module calling and processing.

[0127] The source term calculation analysis module receives the operating parameter data of the accident site, and accurately analyzes and extracts the actual nuclear source term of the accident site by using advanced source term calculation methods. The module generates source term information that meets the site conditions in combination with the actually collected data (such as the release amount and type of radionuclides). These source term information is timely stored in the background database as an important input basis for radiation field calculation and consequence evaluation.

[0128] The radiation field calculation module uses the actual source term data generated in the database and the real-time acquired external environmental meteorological data (such as wind speed, humidity, rainfall, etc.) to construct a complex mathematical model for radiation field simulation calculation. The calculation results include the spatial distribution and concentration change of radionuclides in the surrounding environment. These radiation field data are accurately stored in the database to provide basic data support for subsequent personnel protection and consequence evaluation.

[0129] The consequence evaluation module calls the radiation field calculation data, and introduces the concentration data of radionuclides into the equivalent dose model of key organs and tissues and the personal whole-body effective dose evaluation model. Through these evaluation models, the module can quickly evaluate the potential impact of radionuclides on personnel health, including collective dose evaluation and individual exposure dose evaluation. These evaluation data are stored in the system database to provide quantitative basis for decision support.

[0130] The countermeasure analysis module generates a preliminary accident disposal scheme according to the result of the accident state analysis, in combination with the accident nature, the accident evolution trend, the existing accident disposal plan and the expert suggestion information. Further combined with the radiation field calculation data and the consequence evaluation result, the module comprehensively evaluates various selectable emergency protection measures such as evacuation, resettlement and shielding, and optimizes to form detailed radiation protection countermeasures. The finally generated disposal scheme is provided to the emergency decision makers to ensure rapid and efficient accident response.

[0131] The system executes the tasks calculated by the modules quickly through the information data processing terminal, and the task execution interface is as shown in Figure 4 and Figure 5 The computer program running in the memory drives the automatic distribution and efficient completion of the tasks of each module, and the task flow includes the links of state analysis, source item calculation, radiation field simulation, consequence evaluation and countermeasure generation. Finally, the terminal device integrated by the system displays all the analysis results in a visual form, providing intuitive judgment basis and efficient execution ability for decision makers. Through the collaborative work of multiple modules, the system greatly shortens the accident response time, and provides effective protection for personnel safety and environmental protection.

[0132] The system meets the rapid decision-making needs of the nuclear accident emergency response stage through the functional design of the sub-modules and the rapid task processing, and provides comprehensive technical support for the accident management under complex environment. It should be noted that the embodiments of the present application can be realized by hardware, software or the combination of software and hardware. The hardware part can be realized by using special logic; the software part can be stored in the memory and executed by a suitable instruction execution system, such as a microprocessor or a specially designed hardware. Those skilled in the art can understand that the above devices and methods can be realized by computer executable instructions and / or included in processor control code, such as the code provided on a carrier medium such as a magnetic disk, CD or DVD-ROM, a programmable memory such as a read-only memory (firmware) or a data carrier such as an optical or electronic signal carrier. The devices and modules of the present application can be realized by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by the combination of the above hardware circuits and software, such as firmware.

[0133] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any modification, equivalent replacement and improvement made by those skilled in the art within the technical range disclosed by the present application, as long as it is within the spirit and principle of the present application, should be covered within the protection scope of the present application.

Claims

1. A rapid analysis and scheduling method for the emergency response phase of a nuclear accident, characterized in that, Includes the following steps: Accident Status Analysis: Establish a nuclear accident status model and store data on various types of nuclear accidents in the database; match the corresponding accident model based on the accident occurrence information, analyze the accident status, and store the analysis results in the background database; Source term calculation and analysis: Based on the accident status analysis results, key source term information is extracted, and combined with environmental data, the leakage intensity, leakage duration and radioactive material type of the leakage source are calculated using a radiation diffusion model to generate basic source term data; Radiation field calculation: Using source term data, the diffusion behavior of radioactive materials is simulated through a three-dimensional plume diffusion model. Multi-threaded programming is used to generate spatial radiation concentration field grid data, and the radiation field data is stored in the database. Consequence assessment: Based on radiation field data and combined with GIS administrative division information, analyze the area, population, key facilities and risk level of the radiation field coverage area, and generate a quantitative assessment report; Countermeasures Analysis: Based on the consequences assessment results, emergency countermeasures are generated, including personnel evacuation, resource allocation, and pollution control measures. The emergency response strategy is optimized through simulation, and a dynamically adjusted action plan is output. Data integration and scheduling feedback: Integrate all the data generated in the above steps into the backend database, display the analysis results and scheduling suggestions through an interactive interface, and support real-time updates and re-optimization; The accident status analysis is as follows: First, simulate nuclear accident conditions, establish an accident condition model, and store data information on various types of nuclear accident conditions in the database. Secondly, the accident model is invoked, and the corresponding accident model is found through matching calculation based on the accident information. Finally, the accident status model is matched for analysis, and the analysis results are stored in the backend database for easy access later. The source term calculation and analysis: First, receive the operational parameter data from the accident site, and use the source term calculation method, combined with the actual source term data, to form accurate source terms for the accident site; Then, the actual source item information is stored in the backend database.

2. The rapid analysis and scheduling method for the nuclear accident emergency response phase as described in claim 1, characterized in that, The radiation field calculation: The actual source data and external environmental meteorological data in the database are input into a complex mathematical model to obtain radiation field data, which is then stored in the database for easy access later.

3. The rapid analysis and scheduling method for the nuclear accident emergency response phase as described in claim 1, characterized in that, Evaluation of the consequences: By calling radiation field calculation data from the database, the concentration of radionuclides is incorporated into the equivalent dose of key organs and tissues, the individual whole-body effective dose, and the collective dose evaluation model to assess the impact of radionuclides on relevant personnel.

4. The rapid analysis and scheduling method for the nuclear accident emergency response phase as described in claim 1, characterized in that, Analysis of the countermeasures: First, based on the accident status analysis results, combined with the nature of the accident, the evolution of the situation, the accident response plan, and expert advice, an accident response plan is generated, and after optimization, accident response countermeasures are produced. Then, based on radiation field calculation data, consequence evaluation data, and available emergency protection measures, radiation protection countermeasures are generated.

5. A rapid analysis and scheduling system for the nuclear accident emergency response phase, implementing the rapid analysis and scheduling method for the nuclear accident emergency response phase as described in any one of claims 1-4, characterized in that, The rapid analysis and dispatch system for the nuclear accident emergency response phase includes: The accident status analysis module is used to simulate nuclear accident states, establish accident status models, and store data information on various types of nuclear accident states in the database. It calls the accident model, and based on the accident information, it searches for the corresponding accident model through matching calculations. It matches the accident status model for analysis and stores the analysis results in the background database for easy access later. The source term calculation and analysis module is used to receive operational parameter data from the accident site, use source term calculation methods, and combine them with actual source term data to form accurate source terms at the accident site; and store the actual source term information in the background database. The radiation field calculation module is used to input actual source data and external environmental meteorological data from the database into a complex mathematical model to obtain radiation field data, and then store the radiation field data in the database for easy access later. The consequences assessment module is used to call radiation field calculation data from the database, incorporate the concentration of radionuclides into the equivalent dose of key organs and tissues, the individual whole-body effective dose, and the collective dose assessment model, and evaluate the impact of radionuclides on relevant personnel. The countermeasures analysis module is used to generate accident handling plans based on the accident status analysis results, combined with the nature of the accident, the evolution of the situation, the accident handling plan, and expert advice. After optimization, accident handling countermeasures are generated. Then, radiation protection countermeasures are generated based on radiation field calculation data, consequence evaluation data, and available emergency protection measures.

6. A computer device, characterized in that, The computer device includes a memory and a processor. The memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the rapid analysis and scheduling method for the nuclear accident emergency response phase as described in any one of claims 1-4.

7. A computer-readable storage medium storing a computer program, which, when executed by a processor, causes the processor to perform the steps of the rapid analysis and scheduling method for the nuclear accident emergency response phase as described in any one of claims 1-4.

8. An information data processing terminal, characterized in that, The information data processing terminal is used to implement the rapid analysis and scheduling system for the nuclear accident emergency response phase as described in claim 5.

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