Overhaul critical path management and control system and method
Through overhauling the critical path management and methods, the problem of opacity and inadequate analysis in the overhaul plan is solved, and the transparency and efficient management of the critical paths are achieved, ensuring the clarity of the construction period and the accuracy of the progress, and adapting to unplanned factors. Changes.
Patent Information
- Application Number
- CN202411133756.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2024-12-13
AI Technical Summary
The key path plan for the overhaul of nuclear power plant is not transparent, the project analysis is not in place, the construction period surplus of the sub-critical paths and critical paths is not clear, the progress of the key path targets is not clear, and the data verification of the milestone window is not clear.
Provide a critical path management system and method for overhauling, including project work decomposition and analysis module, excellent construction period iteration and reference critical path planning module, critical path tracking and control module, overview and report analysis module, and critical path planning special scenario display module, Through these modules, the analysis, tracking, displaying, early warning, deviation analysis and resource management of overhaul projects is realized, ensuring the transparency, visualization and refined management of key paths.
It has realized visualization, transparency, digitalization and precise management of key paths of overhaul, automatic monitoring and early warning, ensuring the accuracy of work progress at each stage of the critical path, and providing accurate means to efficiently control multiple critical paths and sub-critical paths. Respond to the impact of unplanned factors in a timely manner.
Smart Images
Figure CN119130428A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of nuclear power overhaul, and in particular to an overhaul key path management and control system and method. Background Art
[0002] The current nuclear power plant overhaul plan is prepared using the critical path method, which mainly forms a network diagram plan by setting up logical relationships, organizational relationships, external constraint relationships, etc., to reflect the time required for each overhaul project and each process and the connection relationship between them. By calculating the time parameters related to each process and the minimum time required to complete the task, the key processes and critical routes are determined, and on this basis, a critical path plan for optimizing the construction period and critical path resources is formulated through network analysis methods.
[0003] The critical path planning process mainly includes the following three stages:
[0004] Planning preparation stage: Decompose the complex overall project into several work breakdown structures (WBS), and the decomposition process is from coarse to fine, analyzing layer by layer according to the required elements to determine the duration and resources required for each activity. Clarify the logical relationship between the activities, list the activity table or operation table, and establish a network diagram of the entire project to represent the relationship between the activities.
[0005] Planning stage: The purpose of this stage is to prepare a time schedule that shows the start and completion time of each activity. The schedule focuses on the key activities that must be managed in order to ensure that the entire project is completed on time, that is, the work with no surplus time (total float time is 0). For non-critical activities, their surplus time (total float time) must also be clarified so that resources can be processed, allocated and balanced under limited conditions.
[0006] Planning and control stage: Apply the network planning schedule, regularly report and analyze the actual progress, modify and update the network diagram when necessary, and decide on new measures and action plans. When unplanned factors occur, evaluate the impact of unplanned factors on the overhaul critical path plan through the formulation of the preliminary plan, and appropriately adjust the start and completion dates of some activities for the effective use of resources.
[0007] Under normal circumstances, the logical relationship and critical path changes of overhaul critical path planning are only in the hands of planners. The adjustment of critical path planning is not flexible enough, the assessment of the impact of unplanned factors on critical paths is not sensitive enough, and the assessment of the impact of unplanned factors on sub-critical paths on overhaul critical paths is not clear enough. These are not conducive to the promotion, adjustment, control and continuous optimization of overhaul critical paths. Summary of the invention
[0008] The purpose of the present invention is to provide a major overhaul critical path management and control system and method to solve the problems of opaque major overhaul critical path, inadequate project analysis, unclear construction period slack between sub-critical path and critical path, unclear critical path target progress, and unclear milestone window data verification.
[0009] In order to achieve the above object, the present invention provides the following technical solutions:
[0010] In one aspect, the present invention provides an overhaul critical path management and control system, comprising:
[0011] The overhaul project work breakdown and project analysis module is used to analyze the overhaul project and sort out the overhaul project or overhaul project group with the longest time in each milestone window condition;
[0012] The module of overhaul excellence duration iteration and reference critical path plan is used to iterate and upgrade the overhaul excellence duration in combination with completed overhauls of the same type or new improvements in specifications / processes, and to upgrade the overhaul critical path reference plan with the latest overhaul excellence duration.
[0013] The overhaul critical path tracking and control module is used for tracking, displaying, early warning, deviation analysis and other functions of the critical path plan during the overhaul period;
[0014] The overhaul critical path overview and report analysis module is a core module used for critical path deviation analysis and experience feedback improvement during the overhaul summary period;
[0015] The special scenario display module of overhaul critical path plan is used for visual tracking and management of some special scenarios of overhaul plan.
[0016] In some embodiments, the overhaul project work decomposition and project analysis module sorts out the system conditions, processes, duration, and preceding and following logic required for project implementation.
[0017] In some embodiments, the overhaul excellent duration iteration and reference critical path planning module upgrades the overhaul critical path reference plan to achieve iterative optimization of the overhaul standard milestone window duration and the overhaul critical path excellent duration.
[0018] In some embodiments, the overhaul critical path tracking and control module is based on the overhaul critical path reference plan upgraded by the overhaul excellent duration iteration and reference critical path planning module, combined with the overhaul non-standard duration projects identified by the project analysis module and approved by the process, to formulate an overhaul critical path plan.
[0019] In some embodiments, the overhaul critical path overview and report analysis module calculates the execution deviation of each critical path project plan and displays the resources involved in the critical path items under each milestone through the overhaul critical path item details, thereby realizing refined overhaul resource management and control.
[0020] In some embodiments, the overhaul critical path plan special scenario display module targets special control scenarios on the critical path or sub-critical path control, and realizes real-time progress visualization control from work order progress, equipment distribution, work sequence, isolation progress, and personnel management.
[0021] On the other hand, the present invention provides a method for overhaul critical path control, comprising the following steps:
[0022] Step 1: Iterate and upgrade the critical path reference plan;
[0023] Step 2: Prepare the overhaul critical path plan based on the overhaul critical path reference plan;
[0024] Step 3: Overhaul key path control, report statistics, analysis, and summary.
[0025] Step 1 specifically includes:
[0026] Step 1.1: Enter the overhaul critical path framework logic into the overhaul information system;
[0027] Step 1.2: Enter the overhaul critical path into the overhaul information system and implement data reading operations;
[0028] Step 1.3: After the last overhaul of the same type of unit is completed, analyze the last overhaul excellence milestone window in the overhaul information system;
[0029] Step 1.4: Refine the new overhaul excellence milestone window and incorporate it into the system overhaul critical path to complete the upgrade of the overhaul critical path reference plan.
[0030] Step 2 specifically includes:
[0031] Step 2.1: Perform project analysis in the overhaul critical path control system, and add corresponding start task and end task operation codes to each node in the overhaul critical path window plan that has been entered into the system;
[0032] Step 2.2: Perform non-standard duration analysis on all projects within each standard milestone window of the overhaul critical path, identify non-standard projects within each milestone window of the critical path, and determine the duration of each non-standard project;
[0033] Step 2.3: Evaluate whether the non-standard project is included in the overhaul critical path plan through the approval process. If so, include it in the system setup logic and complete the preparation of the first draft of the overhaul critical path plan; if not, proceed to step 2.4;
[0034] Step 2.4: Schedule the overhaul plan for the erection logic, review, modify and complete the preparation of the overhaul critical path plan.
[0035] Step 3 specifically includes:
[0036] Step 3.1: Read the progress of the overhaul critical path plan project in real time, display the current critical path progress, record the time taken for each operation, calculate the deviation of plan execution, prepare analysis reports, estimate the expected time of subsequent operations, notify in advance, and ensure the negative interface of the overhaul critical path progress;
[0037] Step 3.2: Read the historical data of the overhaul critical path project, execute the overhaul critical path plan, and count the execution deviations of the critical path projects and store them in the historical data.
[0038] Compared with the prior art, the overhaul critical path control system and method provided by the present invention has the following beneficial effects:
[0039] The present invention overcomes the errors existing in the original manual statistics, saves manpower, realizes the visualization, transparency, digitization, precision and intelligent management of the execution of the overhaul critical path, automatically monitors and warns each link and key node of the project, and provides information such as the work progress of each stage of the overhaul critical path, the issues that need to be paid attention to in the current work, the deviation amount of the progress execution ahead of time and behind time, and the deviation amount of the current work execution from the historical best execution to all users. By reminding the responsible units of the subsequent multiple processes of the work start time in advance, the negative interface of the critical path process is ensured. At the same time, the system automatically calculates the redundancy of the construction period of multiple parallel critical paths and sub-critical paths, and provides planning engineers with precise grasps to realize efficient management and control of multiple critical paths and sub-critical paths. When any sub-critical path becomes a new critical path due to various unplanned factors, the system can automatically switch and refresh and display the various operations of the new critical path. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the technical description.
[0041] Figure 1 A schematic diagram of the structure of the overhaul critical path control system provided by the present invention;
[0042] Figure 2 This is a flow chart of the overhaul critical path control method provided by the present invention. DETAILED DESCRIPTION
[0043] The following is further explained in detail through specific implementation methods.
[0044] like Figure 1As shown, the present invention provides an overhaul critical path management and control system, including an overhaul project work decomposition and project analysis module, an overhaul excellent duration iteration and reference critical path planning module, an overhaul critical path tracking and management module, an overhaul critical path overview and report analysis module, and an overhaul critical path plan special scenario display module.
[0045] The overhaul project work breakdown and project analysis module is used to analyze a large number of overhaul projects, sort out the system conditions, processes, duration, and logic before and after the project implementation, and sort out the overhaul projects or overhaul project groups that take the longest time in each milestone window condition. According to the analysis results, the various tasks of the overhaul project are decomposed into the work breakdown structure WBS of the planning and scheduling software P6 according to the scheduling groups such as the main line / nuclear island / conventional island. Each planning engineer analyzes the milestone window and project duration of the corresponding scheduling group project. Based on the duration of each outstanding milestone window of the overhaul, identify the projects that affect the outstanding milestone window, mark them and automatically read them by the system as non-standard project lists and include them in the non-standard project review process. It should be noted that the overhaul project work breakdown and project analysis module is the basic preparation module for the preparation of the overhaul critical path plan during the overhaul preparation period. In the process of critical path project analysis, a part of the core work of project decomposition is actually carried out simultaneously. For overhaul projects, the work breakdown and project analysis are closely related in function, so they are set in the same module.
[0046] The overhaul excellence duration iteration and reference critical path planning module is used to iterate and upgrade the overhaul excellence duration in combination with completed overhauls of the same type or new improvements in specifications / processes, and to upgrade the overhaul critical path reference plan with the latest overhaul excellence duration. Import the overhaul reference critical path plan into the system, and the system automatically captures the historical overhaul shortest duration window to form an overhaul reference plan. Combined with the newly completed overhaul, the system automatically analyzes and captures the latest shortest duration window to replace the original window, upgrades the overhaul critical path reference plan, and realizes the iterative optimization of the overhaul standard milestone window duration and the overhaul critical path excellence duration. The overhaul excellence duration iteration and reference critical path planning module is the basic module for the preparation of overhaul critical path plans during overhaul preparation. The iterative update of the overhaul excellence duration and the preparation of the reference critical path are closely related, so they are set in the same module.
[0047] The overhaul critical path tracking and control module is the core module for control during the overhaul implementation period, and is used for tracking, displaying, warning, deviation analysis and other functions of the critical path plan during the overhaul period. Based on the overhaul critical path reference plan of the overhaul excellent duration iteration and the reference critical path plan module upgrade, combined with the overhaul non-standard duration projects identified by the project analysis module and approved by the process, the overhaul critical path plan is formulated. The overhaul critical path control system automatically reads the historical data of the overhaul critical path project, and the planner sets the excellent duration of the overhaul standard milestone window. The user can directly view the historical best and excellent duration of the overhaul critical path project, the best and excellent duration of the overhaul standard milestone window through the overhaul window analysis interface, and the person in charge of each operation can clearly grasp the logical relationship between each operation. Through the overhaul key path display and deviation analysis system, the progress of the overhaul key path plan is automatically read, the current key path progress is displayed under the overhaul implementation overview and the nuclear island and conventional island key path items, the time used for each operation is accurately recorded, the plan execution deviation is automatically counted, and the analysis report is automatically compiled to estimate the expected arrival time of subsequent operations and notify in advance. Each department can better understand the progress of the overhaul, pay attention to the key tasks of the overhaul implementation, and realize automatic monitoring, early warning, and decision support for each link and key node of the key path, ensuring the negative interface of the overhaul key path progress. The overhaul key path tracking and control module is the core control module during the overhaul implementation. The means of plan control such as tracking, display, deviation analysis, early warning and other functions are all different information products obtained by organically combining and analyzing the same set of data with different directions.
[0048] The overhaul critical path overview and report analysis module is used for critical path deviation analysis and experience feedback improvement during the overhaul summary. The overhaul critical path overview and report analysis module is the core module for critical path deviation analysis and experience feedback improvement during the overhaul summary. The overview and report of each milestone window of the overhaul critical path are displayed in this module and can be directly used for subsequent analysis. The overhaul critical path overview and report analysis module calculates the execution deviation of each critical path project plan, and displays the resources involved in the critical path items under each milestone through the details of the overhaul critical path items, so as to achieve refined overhaul resource management and control. Through report analysis, the planned construction period data of the overhaul critical path occupied by each department is displayed, and the data on the advance / delay of the progress of the overhaul critical path occupied by each department is displayed in real time to ensure the transparency of the overhaul critical path execution. The overhaul critical path overview and report analysis module incorporates the execution data of each critical path into the historical database, compiles various reports, and provides data reference and analysis support for overhaul summary and optimization.
[0049] The special scenario display module for overhaul critical path plan is used for visual tracking and management of some special scenarios of overhaul plan. Special control scenarios are set for special projects that occupy a special position in the control of critical paths or sub-critical paths, such as low water level, loading, unloading, etc., to achieve real-time progress visualization control from dimensions such as work order progress, equipment distribution, work sequence, isolation progress, and personnel management. The special scenario display module for overhaul critical path plan is a management module for special tracking plans for special overhaul scenarios. Special projects may be either critical paths or sub-critical paths; they may also be sub-critical paths at present, but become critical paths due to positive plan deviations during execution; they may also be critical paths at present, but become sub-critical paths due to negative plan deviations during execution.
[0050] Among the above five modules, the overhaul project work decomposition and project analysis module, the overhaul excellent duration iteration and reference critical path planning module are the basis, the overhaul critical path planning tracking control module, the overhaul critical path overview and report analysis module are the core of digital control, and the overhaul critical path planning special scenario display module is supplemented by the detailed control of major special projects, and finally the overall functional control of the overhaul critical path planning module is realized. The five modules of the overhaul critical path control system are the current actual settings, and several related functions are combined in one module to facilitate unified display, unified call, and unified analysis of data to form information products.
[0051] The whole process control of the critical path plan based on the overhaul information management system is divided into three stages: the preparation of the overhaul critical path reference plan is the first stage, the preparation of the overhaul critical path plan is the second stage, and the overhaul critical path control, report statistics, analysis and summary are the third stage. Each stage requires different data support.
[0052] In addition, the present invention also provides a method for compiling an overhaul critical path, comprising the following steps:
[0053] Step 1: Overhaul the critical path reference plan and iteratively upgrade it. It should be noted that upgrading refers to updating the plan.
[0054] Step 1: Combine the completed overhaul or the new improved iterative version of the overhaul excellence period with the specifications / processes. Usually, when the actual milestone window period of the overhaul of this unit or the same type of units is shorter than the overhaul excellence period, the corresponding milestone window period in the overhaul excellence period will be replaced by this period to achieve the goal of the overhaul excellence period being the sum of the best periods of each milestone window. The overhaul critical path reference plan will be upgraded based on the new overhaul excellence period.
[0055] Step 1 The specific steps include:
[0056] Step 1.1: Enter the overhaul critical path framework logic into the overhaul information system;
[0057] Step 1.2: Enter the overhaul critical path into the overhaul information system and implement data reading operations;
[0058] Step 1.3: After the last overhaul of the same type of unit is completed, the last overhaul excellence milestone window is analyzed in the overhaul information system. That is, after the last overhaul of the same type of unit is completed and the window analysis is completed in the system. Among them, the overhaul practice of the same type of unit is one of the information sources for the upgrade of the overhaul excellence period of this unit.
[0059] Step 1.4: Refine the new overhaul excellence milestone window and incorporate it into the system overhaul critical path to complete the upgrade of the overhaul critical path reference plan.
[0060] Step 2: Preparation of overhaul critical path plan.
[0061] Step 2: Based on the overhaul critical path reference plan and combined with the overhaul non-standard duration items, formulate the overhaul critical path plan. Identify the overhaul non-standard duration items by analyzing the work that affects the overhaul standard window excellent duration. The overhaul non-standard duration items must be evaluated for rationality and urgency. According to the degree of their impact on the overhaul critical path plan, they can be included in this overhaul after approval by the corresponding process. The overhaul critical path operation items are displayed through the overhaul information system overhaul critical path framework general diagram interface (a human-machine display interface in the overhaul critical path management and control module of the overhaul information system). The person in charge of each operation can clearly grasp the logical relationship between each operation to ensure that the overhaul operation is connected correctly.
[0062] Step 2 specifically includes:
[0063] Step 2.1: Perform project analysis in the overhaul critical path control system, and add corresponding start task and end task operation codes to each node in the overhaul critical path window plan that has been entered into the system as the basis for overhaul critical path plan analysis.
[0064] Step 2.2: Perform non-standard duration analysis on all projects within each standard milestone window of the overhaul critical path, identify non-standard projects within each milestone window of the critical path, and determine the duration of each non-standard project. Among them, standard projects usually refer to projects that are performed every time this type of overhaul of the unit is performed, usually regular projects with a frequency of 1C (one operating fuel cycle); non-standard projects refer to projects that are not performed every time this type of overhaul of the unit is performed, including regular projects with a frequency greater than 1C and non-regular projects such as technical changes and experience feedback projects.
[0065] Step 2.3: Evaluate whether the non-standard project is included in the overhaul critical path plan through the approval process. If so, include it in the system setup logic and complete the preparation of the first draft of the overhaul critical path plan; if not, proceed to step 2.4.
[0066] Step 2.4: Schedule the overhaul plan for the erection logic, review, modify and complete the preparation of the overhaul critical path plan.
[0067] Step 3: Overhaul key path control, report statistics, analysis, and summary.
[0068] Step 3: Through the interface of the overhaul critical path framework master map, the overhaul critical path operation items are displayed, and the person in charge of each operation can clearly grasp the logical relationship between the operations to ensure the correct connection of the overhaul operations. Through the system's automatic reading of the historical data of the overhaul critical path project, the planner sets the excellent duration of the overhaul standard milestone window, and each unit directly views the historical best and excellent duration of the overhaul critical path project and the best and excellent duration of the overhaul standard milestone window through the overhaul window analysis interface, promoting the iterative optimization of the overhaul standard milestone window duration and the excellent duration of the overhaul critical path.
[0069] Step 3 specifically includes:
[0070] Step 3.1: The system reads the progress of the overhaul critical path plan project in real time, displays the current critical path progress under the overhaul implementation overview and the nuclear island and conventional island critical path items, accurately records the time used for each operation, automatically calculates the plan execution deviation, prepares analysis reports, estimates the expected arrival time of subsequent operations, notifies in advance, and ensures the negative interface of the overhaul critical path progress. The plan execution deviation is calculated in real time and displayed on the relevant interface, so that each department can better understand the overhaul progress and pay attention to the key tasks of the overhaul implementation.
[0071] Step 3.2: The system automatically reads the historical data of the overhaul critical path project, executes the overhaul critical path plan, and stores the statistical deviation of the critical path project execution in the historical data. The planner sets the excellent duration of the overhaul standard milestone window. Each unit can directly view the historical best and excellent duration of the overhaul critical path project and the best and excellent duration of the overhaul standard milestone window through the overhaul window analysis interface, so as to promote the iterative optimization of the overhaul standard milestone window duration and the excellent duration of the overhaul critical path.
[0072] It consists of the best and excellent historical duration of the overhaul standard milestone window, the best and excellent historical duration of the overhaul key path project, the best and excellent duration of the A / C type overhaul core materialless overhaul milestone window, overhaul project analysis, overhaul implementation plan progress, and the key path system function navigation bar. Through the present invention, relevant personnel can intuitively see the progress of the key path, the preceding key path work, the subsequent key path work, the start / completion time of each step of the key path work, the proportion of each department of the key path of each milestone window of the overhaul, the advance / delay information and reason analysis of each key path item, the retention information, and the navigation of important special scenes such as low water level control / personnel control / loading / unloading and other common functions from the overhaul implementation management interface.
[0073] Furthermore, each year, the overhaul reference plan is upgraded based on the completed overhaul or the new improved iterative overhaul duration according to the specifications / processes, and based on the overhaul reference plan and the overhaul non-standard duration items, the overhaul critical path plan is formulated, and the source of the overhaul target duration is clear.
[0074] Furthermore, by analyzing the work that affects the excellent schedule of the overhaul standard window, we can identify the overhaul non-standard schedule items. The overhaul non-standard schedule items must undergo a rationality and urgency assessment, and can be included in this overhaul only after approval by the corresponding process according to the degree of their impact on the overhaul critical path plan, thus laying a solid organizational condition for the overhaul critical path plan to continuously approach the overhaul excellent schedule.
[0075] Furthermore, the impact degree of each overhaul non-standard duration item is noted in the milestone window decomposition of the overhaul critical path plan, and the deviation between the overhaul critical path plan and the overhaul excellent duration is clear, which points out the direction for subsequent overhaul optimization.
[0076] Furthermore, through the overhaul critical path framework master diagram interface, the overhaul critical path operation items are displayed, and each operation manager can clearly grasp the logical relationship between each operation to ensure the correct connection of the overhaul operations.
[0077] Furthermore, by automatically reading the progress of planned operations on the overhaul critical path, the system displays the current progress of the critical path under the overhaul implementation overview and the nuclear island and conventional island critical path items, accurately records the time required for each operation, automatically calculates plan execution deviations, automatically prepares analysis reports, estimates the expected arrival time of subsequent operations, and notifies in advance. Each department can better understand the progress of the overhaul, pay attention to key tasks in overhaul implementation, and realize automatic monitoring, early warning, and decision-making support for each link and key node of the critical path, thereby ensuring the negative interface of the overhaul critical path progress.
[0078] Furthermore, through the system's automatic reading of historical data of overhaul critical path projects and the planners' setting of excellent duration for overhaul standard milestone windows, each unit can directly view the historical best and excellent durations for overhaul critical path projects and the best and excellent durations for overhaul standard milestone windows through the overhaul window analysis interface, thereby promoting iterative optimization of overhaul standard milestone window durations and excellent durations for overhaul critical paths.
[0079] Furthermore, the resources involved in the key path items under each milestone are displayed through the details of the overhaul key path items, so as to achieve refined overhaul resource management and control.
[0080] Furthermore, through report analysis, the planned construction period data of each department occupying the overhaul key path is displayed, and the advance / delay data of each department occupying the overhaul key path is displayed in real time to ensure the transparency of the overhaul key path execution.
[0081] Furthermore, through message messages, relevant departments / personnel are informed of their support requirements for relevant critical path projects, ensuring that supporting resources for critical path projects are in place ahead of schedule with guaranteed quality and quantity.
[0082] Furthermore, through important special scenes, the real-time progress and control of important scenes such as low water level, loading and unloading are displayed.
[0083] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A critical path management and control system for overhaul, characterized in that: include: The overhaul project work breakdown and project analysis module is used to analyze the overhaul project and sort out the overhaul project or overhaul project group with the longest time in each milestone window condition; The module of overhaul excellence duration iteration and reference critical path plan is used to iterate and upgrade the overhaul excellence duration in combination with completed overhauls of the same type or new improvements in specifications / processes, and to upgrade the overhaul critical path reference plan with the latest overhaul excellence duration. The overhaul critical path tracking and control module is used for tracking, displaying, early warning, and deviation analysis of the critical path plan during the overhaul period; Overhaul critical path overview and report analysis module, used for critical path deviation analysis and experience feedback improvement during overhaul summary; Special scenario display module for overhaul critical path plan, a visual tracking management module for special scenarios of overhaul plan.
2. The overhaul critical path management and control system according to claim 1, characterized in that: The overhaul project work decomposition and project analysis module sorts out the system conditions, processes, construction periods, and preceding and following logic required for project implementation.
3. The overhaul critical path management and control system according to claim 1, characterized in that: The overhaul excellence duration iteration and reference critical path plan module upgrades the overhaul critical path reference plan to achieve iterative optimization of the overhaul standard milestone window duration and the overhaul critical path excellence duration.
4. The overhaul critical path management and control system according to claim 1, characterized in that: The overhaul critical path tracking and control module is based on the overhaul critical path reference plan upgraded from the overhaul excellent duration iteration and reference critical path plan module, combined with the overhaul non-standard duration projects identified by the project analysis module and approved by the process, to formulate an overhaul critical path plan.
5. The overhaul critical path management and control system according to claim 1, characterized in that: The overhaul critical path overview and report analysis module calculates the execution deviation of each critical path project plan and displays the resources involved in the critical path items under each milestone through the overhaul critical path item details, thereby realizing refined overhaul resource management and control.
6. The overhaul critical path management and control system according to claim 1, characterized in that: The overhaul critical path plan special scenario display module is aimed at special control scenarios on the critical path or sub-critical path control, and realizes real-time progress visualization control from work order progress, equipment distribution, work sequence, isolation progress, and personnel management.
7. A method for controlling the critical path of an overhaul, characterized in that: The following steps are involved: Step 1: Iterate and upgrade the critical path reference plan; Step 2: Prepare the overhaul critical path plan based on the overhaul critical path reference plan; Step 3: Overhaul key path control, report statistics, analysis, and summary.
8. The overhaul critical path control method according to claim 1, characterized in that: Step 1 specifically includes: Step 1.1: Enter the overhaul critical path framework logic into the overhaul information system; Step 1.2: Enter the overhaul critical path into the overhaul information system and implement data reading operations; Step 1.3: After the last overhaul of the same type of unit is completed, analyze the last overhaul excellence milestone window in the overhaul information system; Step 1.4: Refine the new overhaul excellence milestone window and incorporate it into the system overhaul critical path to complete the upgrade of the overhaul critical path reference plan.
9. The overhaul critical path control method according to claim 1, characterized in that: Step 2 specifically includes: Step 2.1: Perform project analysis in the overhaul critical path control system, and add corresponding start task and end task operation codes to each node in the overhaul critical path window plan that has been entered into the system; Step 2.2: Perform non-standard duration analysis on all projects within each standard milestone window of the overhaul critical path, identify non-standard projects within each milestone window of the critical path, and determine the duration of each non-standard project; Step 2.3: Evaluate whether the non-standard project is included in the overhaul critical path plan through the approval process. If so, include it in the system setup logic and complete the preparation of the first draft of the overhaul critical path plan; if not, proceed to step 2.4; Step 2.4: Schedule the overhaul plan for the erection logic, review, modify and complete the preparation of the overhaul critical path plan.
10. The overhaul critical path control method according to claim 1, characterized in that: Step 3 specifically includes: Step 3.1: Read the progress of the overhaul critical path plan project in real time, display the current critical path progress, record the time taken for each operation, calculate the deviation of plan execution, prepare analysis reports, estimate the expected time of subsequent operations, notify in advance, and ensure the negative interface of the overhaul critical path progress; Step 3.2: Read the historical data of the overhaul critical path project, execute the overhaul critical path plan, and count the execution deviations of the critical path projects and store them in the historical data.