Reactor maintenance and decommissioning digital management method based on BIM technology

Abstract

The invention discloses a reactor maintenance and decommissioning digital management method based on a BIM technology, and the method comprises the steps: employing BIM three-dimensional modeling CATIA software, designing a corresponding BIM three-dimensional initial scene model according to a proportion according to a two-dimensional drawing, a picture or other needed data of an engineering project, and after the initial scene model is designed and created, carrying out the calculation of the CATIA software; and uploading the model to a reactor maintenance and decommissioning digital management platform system, and carrying out animation simulation design on the process flow by using DELMIA process virtual simulation design software in combination with the three-dimensional initial scene model. The reactor maintenance and decommissioning implementation efficiency is improved, the safety is improved, and the implementation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of digital management technology, and in particular to a digital management method for reactor maintenance and decommissioning based on BIM technology. Background Art

[0002] In the construction of nuclear energy projects, the maintenance and decommissioning of reactors are extremely complex. Nuclear reactor facilities are arranged in an extremely small space, with compact structures and intricate pipelines. Nuclear facilities will be contaminated and activated by radioactivity during operation. The site and equipment are highly radioactive. It is difficult to cut and dismantle the radioactive components and loop systems in the reactor. The process is complex and irreversible. Therefore, it is necessary to rely on BIM technology to carry out digital technical management of reactor maintenance and decommissioning.

[0003] In response to the business needs of the nuclear energy industry, a scientific, robust, and comprehensive information technology solution was designed and developed. By applying computer simulation, visualization, virtual reality, and database technologies, a digital management system for reactor maintenance and decommissioning was developed. The resulting system is a comprehensive research platform integrating project management, engineering process design, engineering implementation process management, resource management, waste management, and virtual training, all within a virtual simulation environment focused on immersive visualization and human-computer interaction. This platform is crucial for protecting worker safety, improving work efficiency, and reducing maintenance and decommissioning costs. Summary of the Invention

[0004] In view of this, the present invention provides a digital management method for reactor maintenance and decommissioning based on BIM technology, which makes the implementation of reactor maintenance and decommissioning business more efficient and safer.

[0005] The present invention discloses a digital management method for reactor maintenance and decommissioning based on BIM technology, which includes:

[0006] Using BIM 3D modeling CATIA software, the corresponding BIM 3D initial scene model is designed in proportion based on the 2D drawings, pictures or other required materials of the engineering project. After the initial scene model design is completed, it is uploaded to the reactor maintenance and decommissioning digital management platform system, and then DELMIA process virtual simulation design software is used in combination with the 3D initial scene model to perform animation simulation design of the process flow.

[0007] Furthermore, in the platform system, edit and create basic project information and divide the project into stages. After the project information is created, you can attach the corresponding project model to the project and assign relevant project member information to the project.

[0008] In the platform system, the resources used in the entire platform system are centrally managed in the form of a resource pool. After complete resource information is created in the system resource pool, it can be directly referenced and allocated to the project.

[0009] Furthermore, once the project information and the corresponding BIM 3D initial scene model are successfully loaded, detailed process planning and design can be carried out based on the current project execution characteristics. The platform system estimates the basic process information and the amount of radioactive and non-radioactive solid, liquid, and gaseous waste generated during the process execution. The detailed work steps of the current process are designed and the resources required for each work step are allocated and added.

[0010] After the process information is created, the DELMIA process virtual simulation design tool is used to obtain the project information and the corresponding initial scene model in the platform system, and then the complete process flow data information of the designed process is obtained; after confirming that the obtained data information is correct, the process flow can be designed and produced as a virtual simulation animation in combination with the BIM three-dimensional initial scene model structure; the entire process flow simulation animation designed in the DELMIA process virtual simulation design tool is sent back to the platform system, and the simulation animation can be directly previewed online in the platform system.

[0011] Furthermore, the platform system combines quantitative evaluation parameter algorithms to evaluate the process plan, and the expert group can ultimately judge the technical feasibility of the process plan based on the evaluation results; if the evaluation results are not recognized by the experts, the process needs to be replanned and redesigned.

[0012] Furthermore, the 3D radiation field calculation and visualization for reactor overhaul and decommissioning projects include:

[0013] By preprocessing the radiation scene, the device ID, shape, size, center point coordinates, direction vector, material information, source term data, and shielding body data are extracted as input to the radiation field algorithm. The radiation field algorithm is based on the theory of Monte Carlo and point kernel integration coupling methods. MCNP and QAD-CG software are used as the calculation kernels of Monte Carlo and point kernel integration, respectively. The radiation field visualization is achieved based on the radiation field algorithm results and interpolation algorithm.

[0014] In the platform system, the location of relevant equipment is selected based on the BIM three-dimensional initial scene model and relevant parameters are input. The radiation field calculation program calls the source item data in the database as input data to calculate the radiation range of the entire radiation field. After the calculation is completed by the calculation kernel, the calculation results are saved and returned to the platform system for visualization. The relevant equipment includes radiation field source items and shielding equipment.

[0015] Furthermore, the platform system plans and designs personnel walking paths and equipment lifting paths based on the initial scenario, process scenario, and radiation results; comprehensively considers relevant factors to subdivide the path planning problem, constructs a single-objective or multi-objective path planning evaluation method, and uses mathematical models combined with optimization algorithms to find the best solution, so as to achieve the purpose of accurately solving the path planning under the reactor maintenance and decommissioning process, analyzing and deciding its rationality and scientificity; relevant factors include scenario characteristics, properties of each item, and radiation intensity.

[0016] Furthermore, in the platform system, the personnel exposure dose calculation service calculates the real-time dose and cumulative dose of personnel on the work path based on virtual simulation data, radiation field calculation result data, and path planning result data;

[0017] First, key information is set; in the walking path of personnel, the dwell time of the path points is set, and the three modes of particle mode, bounding box mode, and voxel mode are used to estimate the external radiation dose of the human body, and finally the estimation and three-dimensional visualization of the radiation dose of a single person or multiple people are realized, and the results of the radiation dose of a single person, multiple people, and a group are statistically analyzed and compared; key information includes the personnel radiation dose warning value, sampling time interval, walking path position and walking speed.

[0018] Furthermore, project participants can directly preview the virtual simulation animation results of the operation process design online in the platform system at any time to conduct process implementation training and learning.

[0019] Furthermore, when the project engineering process planning is completed with design and simulation verification, the project implementation will be carried out. First, the resources required for the project need to be allocated as a whole, and the resource data all comes from the system resource library. After the resource allocation is completed, the engineering plan can be compiled based on a certain stage of the current project. In this platform system, the plan document can be compiled or imported intelligently online. The engineering implementation plan is intelligently compiled, and the engineering plan and progress are intelligently edited and displayed from different perspectives. For the compiled engineering plan, the user can set the start time / completion time of the entire engineering plan. Based on the start time / completion time of the plan set by the user, each engineering plan has 4 times, namely the planned start time, planned end time, execution start time, and execution end time. The algorithm service will automatically arrange the planned start time and planned end time of each task in the entire engineering plan. The default planned start time is the same as the execution start time, and the planned end time is the same as the execution end time. The critical path of the plan is calculated, and the nodes on the critical path are marked with colors.

[0020] After the project plan is compiled, the work tasks can be packaged. The compilation of work packages is based on the project plan. The work task package is generated by selecting the entire project plan, a certain time period in the plan, a certain task in the plan, or multiple tasks. The task package is generated and the corresponding responsible person is assigned and distributed to the responsible person via message notification.

[0021] When the project plan and work package task status is in progress, the system will automatically update and compile statistics on the project execution progress in real time. If there is a deviation between the actual execution progress and the planned execution progress task time or resource usage, the system can also change the status of the progress statistics or report the actual resource usage.

[0022] During the implementation of the engineering task, the entry and exit of personnel, radiation conditions, entry and exit of equipment, exit and flow of solid waste in the entire process are monitored and managed; statistical management is carried out on the execution witness of the quality points and safety points of the planned tasks involved in the implementation process, as well as statistical management of the project implementation funds.

[0023] Furthermore, when the project engineering stage tasks are completed, the stage acceptance can be initiated. Only after all stage acceptances are passed can the overall project acceptance be initiated until it is fully passed and the closed loop is finally completed.

[0024] Due to the adoption of the above technical solution, the present invention has the following advantages:

[0025] 1. The reactor maintenance and decommissioning digital management platform system based on BIM technology can become a powerful auxiliary tool in the maintenance and decommissioning projects of the nuclear industry, and can provide a support platform for the determination of maintenance and decommissioning implementation plans, process planning and optimization, analysis of key points in project implementation, and personnel training.

[0026] 2. Improve design efficiency: BIM 3D scene modeling of the reactor can be realized, helping engineers to evaluate and optimize design schemes more intuitively and improve design efficiency.

[0027] 3. Reduce implementation costs: It can realize the informatization of project management, material management, safety management, quality management, etc., and improve the management level of the implementation process.

[0028] 4. Improve safety: It can realize virtual simulation functions such as reactor equipment management, inspection, repair and maintenance, ensure the personal safety of personnel, and improve the safety and reliability of the reactor.

[0029] 5. Promote cross-disciplinary collaboration: It can realize information sharing and instant collaboration among different disciplines, and improve the collaboration efficiency among various disciplines during the implementation of reactor maintenance and decommissioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments described in the embodiments of the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 This is a schematic diagram of the overall technical architecture of a digital management method for reactor maintenance and decommissioning based on BIM technology according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the overall business process of a digital management method for reactor maintenance and decommissioning based on BIM technology in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described with reference to the accompanying drawings and embodiments. The embodiments described are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by those skilled in the art should fall within the scope of protection of the embodiments of the present invention.

[0034] BIM (Building Information Modeling) is an engineering data model based on 3D digital technology that integrates various relevant information about construction projects. In the implementation of nuclear reactor projects, BIM technology is used to digitally represent the physical and functional characteristics of project facilities. By integrating various basic project data and building a model, BIM technology links project-related information to create a comprehensive 3D model of the entire project.

[0035] The platform system was developed in the Visual Studio 2005 environment using C#, SQL Server and other related technologies. First, the BIM three-dimensional modeling CATIA software was used to design the corresponding project three-dimensional initial scene model in proportion based on the two-dimensional drawings, pictures or other materials of the engineering project. Then, DELMIA process virtual simulation design software was used to combine the three-dimensional initial scene model to perform animation simulation design of the process flow.

[0036] In the reactor maintenance and decommissioning digital management platform system, the reactor BIM model is associated with engineering projects, process design and virtual simulation, engineering plans, engineering progress, engineering equipment and other information, so that the entire engineering project process can be visualized and digitally managed intelligently.

[0037] See also Figure 1 and Figure 2The present invention provides an embodiment of a digital management method for reactor maintenance and decommissioning based on BIM technology, which includes the following steps:

[0038] 1. Build and design a 3D scene model:

[0039] Through the study of the actual environment of the reactor and the combination of relevant information provided by related two-dimensional drawings or other materials, the two-dimensional information is first converted into a BIM three-dimensional model using the client CATIA modeling tool locally. After the initial scene model design is completed, the model is uploaded to the reactor maintenance and decommissioning digital management platform system. In the system, the model structure and basic model information of the project initial model can be viewed online, online preview operations, and model version management can be performed.

[0040] 2. Create project engineering information:

[0041] Edit and create basic project information in the system, and divide the project into phases. Once the project information is created, you can attach the corresponding project model (initial scenario model) to the project and assign relevant project members to the project (including system management personnel and project workers).

[0042] 3. Project resource preparation:

[0043] The system manages resources used throughout the entire platform (including personnel information, file information, equipment information, measuring instrument information, material information, workplace information, spare parts information, etc.) in a centralized manner using a resource pool. Once complete resource information is created in the system resource pool, it can be directly referenced and allocated to projects.

[0044] 4. Process design planning and optimization:

[0045] 4.1 Process design and simulation:

[0046] Once the project information and the corresponding initial scenario BIM 3D model are successfully loaded, detailed process planning and design can be performed based on the current project execution characteristics. The platform system estimates basic process information and the amount of radioactive and non-radioactive solid, liquid, and gaseous waste generated during the process. The detailed work steps for the current process are designed and allocated, along with the resources required for each step (personnel information, documents, equipment, measuring instruments, materials, workspace information, spare parts, etc.). Note: All resource information here comes from the system resource pool.

[0047] After the process information is created, the DELMIA process virtual simulation design tool is used locally to first obtain the project information and the corresponding initial scenario model from the platform system, and then obtain the complete process flow data information. After confirming that the acquired data information is correct, a virtual simulation animation of the process flow can be designed and produced in combination with the initial scenario BIM model structure. Finally, the entire process flow simulation animation designed within the DELMIA tool is transmitted back to the platform system, where it can be directly previewed online.

[0048] The platform system uses a quantitative evaluation parameter algorithm to evaluate the process plan. Ultimately, the expert group can use the evaluation results to determine the technical feasibility of the process plan. If the evaluation results are not accepted by the experts, the process needs to be re-planned and redesigned.

[0049] 4.2 Three-dimensional radiation field calculation and visualization:

[0050] The three-dimensional radiation field calculation and visualization of reactor maintenance and decommissioning projects is achieved by preprocessing the radiation scene and extracting the equipment ID, shape, size, center point coordinates, direction vector, material information, source term data, and shield body data as input to the radiation field algorithm. The radiation field algorithm is based on the theory of Monte Carlo and point kernel integration coupling method, using MCNP and QAD-CG software as the calculation kernels of Monte Carlo and point kernel integration respectively, and realizing radiation field visualization based on the radiation field algorithm results and interpolation algorithm.

[0051] In the platform system, based on the project's initial scenario BMI model, the locations of radiation field sources, shielding equipment, and other items are selected and relevant parameters are entered. The radiation field calculation program uses the source data in the database as input to calculate the entire radiation field range. After the calculation kernel completes the calculation, the results are saved and returned to the platform system for visualization.

[0052] The application of precise calculation and visualization of three-dimensional radiation fields can provide reliable technical support for reactor maintenance and decommissioning. Under the ALARA principle of radiation protection optimization, it can minimize the radiation dose to workers and provide a theoretical basis for the optimal selection of walking paths, demolition paths, and lifting paths.

[0053] 4.3 Path planning design and 3D simulation visualization:

[0054] The platform system plans and designs personnel walking paths and equipment lifting paths based on the initial scenario, process scenario, and radiation results. The path planning problem is subdivided based on comprehensive considerations of factors such as scenario characteristics, specific attributes of each item, and radiation intensity. A path planning evaluation method based on single or multiple objectives such as personnel radiation dose and working time is constructed. Mathematical models are combined with optimization algorithms to find the optimal solution, achieving the goal of accurately solving path planning under reactor maintenance and decommissioning processes, and analyzing and making decisions to ensure its rationality and scientificity. The optimization algorithm includes:

[0055] A* algorithm: Based on the data input from the three-dimensional process scene, under the constraints (such as entrances and exits, obstacles, points to be demolished, etc.), it solves and calculates all feasible paths.

[0056] Genetic algorithm: All feasible paths obtained by the A* algorithm are used as parent inputs, and through operations such as "inheritance", "mutation", and "crossover", the optimal path is found with evaluation goals such as minimizing the worker's exposure dose and shortest time.

[0057] The system inputs 3D process scenario data for a nuclear facility undergoing maintenance or to be dismantled (such as the nuclear facility's unique ID, spatial coordinates, geometry, demolition volume, and coordinates of key locations along the process path), radiation dose data for the 3D radiation field, and the duration of nuclear facility dismantling. A mathematical model is then built to segment the 3D scenario. The total radiation dose to personnel during the dismantling process is then calculated, and the optimal path is selected using a genetic algorithm. Ultimately, the system outputs the optimal personnel travel path, the order in which nuclear facilities are dismantled, and the total radiation dose to personnel along the optimal path, all presented in a 3D visualization.

[0058] 4.4 Personnel Dose Estimation and Visualization:

[0059] The personnel radiation dose calculation service in the platform system calculates the real-time and cumulative doses of personnel along their work paths based on virtual simulation data, radiation field calculation results, and path planning results. First, the personnel radiation dose warning value, sampling interval, walking path location, walking speed, and other information are set. The dwell time of path points along the personnel's walking path is set, and three modes—particle mode, bounding box mode, and voxel mode—are used to estimate the external radiation dose of the human body. Ultimately, the radiation dose estimation and three-dimensional visualization of a single or multiple person are achieved, and the results of the radiation doses for a single person, multiple people, and a group are statistically analyzed and compared.

[0060] 5. Personnel training:

[0061] Project participants can directly preview the virtual simulation animation results of the operation process design online in the platform system at any time to conduct training and learning on the process implementation process.

[0062] This platform system is integrated with the VR system, and uses three-dimensional immersive virtual interactive simulation technology to build training and exercise scenarios, allowing project participants to collaborate alone or in groups to immerse themselves in a virtual working environment. Highly simulated virtual training can be conducted while ensuring personal safety, thereby improving the ability to predict and effectively respond to accidents in actual operations and greatly reducing the incidence of safety accidents.

[0063] 6. Engineering project process data management:

[0064] Once the project engineering process planning is complete and simulation verification is complete, project implementation can begin. First, the resources required for the project (personnel, equipment, documents, materials, measuring instruments, workspace, etc.) need to be allocated as a whole. All resource data comes from the system resource library.

[0065] After resource allocation is completed, the project plan can be compiled based on a certain stage of the current project. In this platform system, local Excel and project plan documents can be compiled intelligently online or imported. The project implementation plan is intelligently compiled based on the process node tree, Pert chart and Gantt chart to intelligently edit and display the project plan and progress from different perspectives. For the compiled project plan, the user can set the start time / completion time of the entire project plan. Based on the start time / completion time of the plan set by the user, each project plan has 4 times, namely the planned start time, planned end time, execution start time, and execution end time. The planned start time and planned end time of each task in the entire project plan are automatically arranged. The default planned start time is consistent with the execution start time, and the planned end time is consistent with the execution end time. The critical path of the plan is calculated, and the nodes on the critical path are marked with colors.

[0066] After the engineering plan is completed, the work tasks can be packaged into work packages. The preparation of work packages is based on the project engineering plan. The work task package is generated by selecting the entire engineering plan, a time period in the plan, a task or multiple tasks in the plan. The task package generates a designated person in charge and sends it to the person in charge via message notification.

[0067] When the project plan and work package task status is in execution, the system will automatically update and count the project execution progress in real time. If there is a deviation between the actual execution progress and the planned execution progress task time or resource usage, the system can also manually change the status of the progress statistics or fill in the actual resource usage.

[0068] During project implementation, this system integrates RFID technology to monitor and manage personnel entry and exit, radiation levels, equipment entry and exit, and solid waste removal and transfer throughout the entire process. This system also provides statistical management of quality and safety points of planned tasks involved in the implementation process, as well as statistical management of project implementation funds.

[0069] 7. Project summary and acceptance:

[0070] When the project engineering stage tasks are completed, the stage acceptance can be initiated. Only after all stage acceptances are passed can the overall project acceptance be initiated until it is fully passed and the closed loop is finally completed.

[0071] The BIM-based digital management method for reactor maintenance and decommissioning applies BIM technology to the nuclear industry, enabling process visualization and virtual simulation verification. Based on the BIM model, interference checks between project equipment and facilities can be conducted before project implementation begins, optimizing process design and reducing potential errors, losses, and rework during the implementation phase. Leveraging the visualization and simulation capabilities of BIM technology, participants can conduct training and drills on the project through virtual 3D visualization of the process before implementation, enabling operators to master the process, improve safety, and reduce errors.

[0072] During the reactor overhaul and decommissioning project phase, intelligent digital management is implemented throughout the entire lifecycle, enabling effective control of all engineering tasks from planning to final completion and acceptance. This improves the efficiency, quality, and cost of reactor overhaul and decommissioning implementation.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A digital management method for reactor maintenance and decommissioning based on BIM technology, characterized in that: include: Using BIM 3D modeling CATIA software, the corresponding BIM 3D initial scene model is designed in proportion based on the 2D drawings, pictures or other required materials of the engineering project. After the initial scene model design is completed, it is uploaded to the reactor maintenance and decommissioning digital management platform system, and then DELMIA process virtual simulation design software is used in combination with the 3D initial scene model to perform animation simulation design of the process flow.

2. The method according to claim 1, characterized in that In the platform system, edit and create basic project information and divide the project into stages. After the project information is created, you can attach the corresponding project model to the project and assign relevant project member information to the project. In the platform system, the resources used in the entire platform system are centrally managed in the form of a resource pool. After complete resource information is created in the system resource pool, it can be directly referenced and allocated to the project.

3. The method according to claim 1, characterized in that Once the project information and the corresponding BIM 3D initial scene model are successfully loaded, detailed process planning and design can be carried out based on the current project execution characteristics. The platform system can estimate the basic process information and the amount of radioactive and non-radioactive solid, liquid, and gaseous waste generated during the process execution. Detailed process steps of the current process can be designed and allocated, and the resources required for each step can be added. After the process information is created, DELMIA process virtual simulation design tool is used to obtain the project information and the corresponding initial scenario model in the platform system, and then the complete process flow data information of the designed process is obtained; After confirming that the acquired data information is correct, the process flow can be designed and produced as a virtual simulation animation in combination with the BIM 3D initial scene model structure; In the DELMIA process virtual simulation design tool, the entire process flow simulation animation designed is sent back to the platform system, where the simulation animation can be directly previewed online.

4. The method according to claim 3, characterized in that The platform system uses a quantitative evaluation parameter algorithm to evaluate the process plan. Finally, the expert group can judge the technical feasibility of the process plan based on the evaluation results. If the evaluation results are not recognized by the experts, the process needs to be replanned and redesigned.

5. The method according to claim 1, wherein 3D radiation field calculation and visualization for reactor overhaul and decommissioning projects include: By preprocessing the radiation scene, the device ID, shape, size, center point coordinates, direction vector, material information, source term data, and shielding body data are extracted as input to the radiation field algorithm. The radiation field algorithm is based on the theory of Monte Carlo and point kernel integration coupling methods. MCNP and QAD-CG software are used as the calculation kernels of Monte Carlo and point kernel integration, respectively. The radiation field visualization is achieved based on the radiation field algorithm results and interpolation algorithm. In the platform system, the location of relevant source equipment is selected based on the BIM three-dimensional initial scene model, and the shape, material, bottom center coordinates, inner radius, outer radius, height, and activity parameters of each nuclide of the source equipment are input. The radiation field calculation program calls the source data in the database as input data to calculate the radiation range of the entire radiation field. After completing the calculation using MCNP and QAD-CG, the calculation results are saved and returned to the platform system for visualization. The relevant source equipment includes radiation field source items and shielding equipment.

6. The method according to claim 1, characterized in that The platform system plans and designs personnel walking paths and equipment lifting paths based on the initial scenario, process scenario, and radiation results; comprehensively considers relevant factors to subdivide the path planning problem, and constructs a single-objective or multi-objective path planning evaluation method. The main factors considered in personnel walking path planning are the shortest path, minimum radiation, and comprehensive evaluation, and a two-dimensional A* algorithm is used as the personnel walking path planning algorithm; the main factor considered in equipment lifting path planning is the shortest path, and a three-dimensional A* algorithm is used as the equipment lifting path planning algorithm to solve, analyze, and make decisions on path planning under reactor maintenance and decommissioning processes; relevant factors include scenario characteristics, attributes of each item, and radiation intensity.

7. The method according to claim 1, characterized in that In the platform system, the personnel exposure dose calculation service calculates the real-time dose and cumulative dose of personnel on the work path based on virtual simulation data, radiation field calculation result data, and path planning result data; First, set the key information; In the walking path of personnel, the dwell time of the path points is set, and the three modes of particle mode, bounding box mode, and voxel mode are used to estimate the external radiation dose of the human body. Ultimately, the radiation dose of a single person or multiple people is estimated and visualized in 3D. The results of the radiation dose of a single person, multiple people, and a group are statistically analyzed and compared. Key information includes personnel radiation dose warning value, sampling time interval, walking path location and walking speed.

8. The method according to claim 1, characterized in that Project participants can directly preview the virtual simulation animation results of the operation process design online in the platform system at any time to conduct training and learning on the process implementation process.

9. The method according to claim 1, characterized in that When the project engineering process planning is completed with design and simulation verification, the project implementation will be carried out. First, the resources required for the project need to be allocated as a whole, and the resource data all comes from the system resource library. After the resource allocation is completed, the engineering plan can be compiled based on a certain stage of the current project. In this platform system, the plan document can be compiled or imported intelligently online. The engineering implementation plan is intelligently compiled, and the engineering plan and progress are intelligently edited and displayed from different perspectives. For the compiled engineering plan, the user can set the start time / completion time of the entire engineering plan. Based on the start time / completion time of the plan set by the user, each engineering plan has 4 times, namely the planned start time, planned end time, execution start time, and execution end time. The algorithm service will automatically arrange the planned start time and planned end time of each task in the entire engineering plan. The default planned start time is consistent with the execution start time, and the planned end time is consistent with the execution end time. Calculate the critical path of the plan and mark the nodes on the critical path with colors; After the project plan is compiled, the work tasks can be packaged. The compilation of work packages is based on the project plan. The work task package is generated by selecting the entire project plan, a certain time period in the plan, a certain task in the plan, or multiple tasks. The task package is generated and the corresponding responsible person is assigned and distributed to the responsible person via message notification. When the project plan and work package task status is in progress, the system will automatically update and compile statistics on the project execution progress in real time. If there is a deviation between the actual execution progress and the planned execution progress task time or resource usage, the system can also change the status of the progress statistics or report the actual resource usage. During the implementation of the engineering task, the entry and exit of personnel, radiation conditions, equipment entry and exit, and the exit and flow of solid waste will be monitored and managed throughout the entire process; Conduct statistical management of the quality points and safety points of the planned tasks involved in the implementation process, as well as statistical management of the project implementation funds.

10. The method according to claim 9, characterized in that When the project engineering stage tasks are completed, the stage acceptance can be initiated. Only after all stage acceptances are passed can the overall project acceptance be initiated until it is fully passed and the closed loop is finally completed.

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