BIM-based maintenance file package full-life-cycle digital management system and method

Abstract

The invention discloses a BIM-based maintenance file package full life cycle digital management system and method, and aims to solve the problems of insufficient maintenance task preparation and subjective quality evaluation. The core of the method is that a maturity gating model is introduced, indexes such as the data integrity, the risk reduction degree and the resource readiness of a file package are quantitatively evaluated before the file package is issued, and pre-quality control is carried out on task performability. And the system issues the qualified file package to the site, acquires execution data and writes the execution data back to the BIM base to form a closed loop of knowledge precipitation and continuous improvement. According to the invention, the reliability of maintenance work is effectively guaranteed, and the quality and intelligent level of facility operation and maintenance management are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of Building Information Modeling (BIM), and in particular to a BIM-based digital management system and method for the entire lifecycle of maintenance document packages. Background Technology

[0002] In the operation and maintenance management of buildings, energy, and industrial facilities, maintenance work is typically organized and distributed in the form of "document packages," which include key information such as work instructions, drawings, risk lists, and resource requirements. However, existing technologies have many drawbacks in managing these maintenance document packages. While BIM technology is currently being used, its data value is largely confined to the design and construction phases, and its integration with maintenance task management in the operation and maintenance phase is not deep. The information required for maintenance is often scattered across different systems, such as BIM models, document management systems, and ERP systems. This results in the document package compilation process heavily relying on manual information integration, which is not only inefficient but also prone to data omissions, version errors, or inconsistencies. More importantly, there is a lack of an objective and quantifiable quality assessment mechanism to ensure the completeness and feasibility of the document package before it is distributed to the site. Traditional approval processes rely heavily on human experience and judgment, failing to systematically check whether the data is complete, whether risks have been adequately mitigated, and whether the required resources are truly ready. This often leads to the issuance of inadequately prepared work instructions, causing on-site rework, inefficiency, and even safety accidents. Furthermore, the actual execution data and experience feedback on site are difficult to form an effective closed loop with the BIM model and original document package. Valuable on-site information cannot be systematically written back and utilized, making it impossible to effectively accumulate knowledge and experience, and also unable to drive the continuous optimization of subsequent maintenance plans. Summary of the Invention

[0003] To address the aforementioned problems in existing technologies, the present invention aims to provide a BIM-based digital management system for the entire lifecycle of maintenance document packages, comprising: The BIM data base module is configured to store building information models and associated maintenance documents, risk lists and resource requirements. Based on a preset template, it encapsulates a set of building information model components and associated data related to a specific maintenance task into a digital maintenance document package object.

[0004] The lifecycle process module is configured to drive the maintenance file package object through preset lifecycle state transitions such as creation, review, release, execution, and archiving.

[0005] The maturity gating module, connected to the BIM data base module and the lifecycle process module, is configured to calculate a document package maturity index M in real time before the status transition of the maintenance document package object, quantifying its completeness and executability. The formula for calculating the document package maturity index M is as follows: ,in, For data integrity, For process compliance, For risk reduction degree, For resource readiness, The preset weighting coefficients for each item; when the value of M is lower than the preset release threshold, the module prevents the state transition and issues an early warning.

[0006] The on-site interaction module is configured to send maintenance document package objects whose M value reaches the release threshold to the on-site operation terminal, collect on-site execution data associated with the maintenance document package objects, and write the on-site execution data back to the BIM data base module.

[0007] Preferably, the BIM data base module is configured to construct a unified data object for each building information model component, with its globally unique identifier as the primary key. The unified data object encapsulates a structured data pointer associated with the building information model component. The structured data pointer points to the maintenance standard operating procedure document, the safety risk analysis table, the preset three-dimensional section view parameters, and the necessary work permit template.

[0008] Preferably, when calculating the maturity index M of the file package, the maturity gating module calculates the parameters as follows: The number of documents associated with the maintenance document package object is calculated by comparing the number of documents that should be included in the preset template. The result is calculated by statistically analyzing the ratio of the number of completed review nodes in the lifecycle process module to the total number of review nodes. This is derived by calculating the ratio of the sum of the weights of the risk items for which mitigation measures have been formulated in the risk list to the sum of the weights of all risk items; This is calculated by querying the associated resource management system and determining the ratio of confirmed maintenance resources to the total required resources.

[0009] Preferably, the on-site interaction module is further configured to classify the on-site execution data. If the on-site execution data is classified as "non-compliant item", the system automatically generates a pending closure issue record associated with the corresponding building information model component in the BIM data base module. The existence of the pending closure issue record is used as a negative adjustment factor by the maturity gating module in the subsequent maturity calculation of new maintenance document packages involving the building information model component.

[0010] A BIM-based digital management method for the entire lifecycle of maintenance document packages includes the following steps: Step S1: Select the building information model components related to the maintenance task in the building information model, and associate the building information model components with maintenance documents, risk lists and resource requirements according to the preset template to create a digital maintenance document package object.

[0011] Step S2: Initiate a lifecycle process for the maintenance file package object, including creation, review, publication, execution, and archiving states.

[0012] Step S3: When each state node in the lifecycle process is ready to move to the next node, a maturity assessment of the maintenance document package object is performed. The assessment includes assessments based on the formula... Calculate the maturity index M of a file package, where, For data integrity, For process compliance, For risk reduction degree, For resource readiness, to Preset weights.

[0013] Step S4: Perform a gating judgment. If the maturity index M of the file package is greater than or equal to the transfer threshold set for the current state node, the maintenance file package object is allowed to transfer to the next state; if it is less than, the transfer request is rejected.

[0014] Step S5: For maintenance document packages that have been transferred to the execution status, digitize their contents and send them to the field operation terminal, and collect field execution data related to the execution process.

[0015] Step S6: The field execution data is sent back and associated with the maintenance file package object for storage. After the process is completed, the maintenance file package object is set to archived state.

[0016] Preferably, in step S1, the data association operation includes: Step S101: Based on the predefined classification codes of the selected building information model components, automatically match and associate a set of basic general maintenance documents from the standard knowledge base.

[0017] Step S102 provides an interactive interface that allows users to add or replace dedicated maintenance documents for this specific maintenance task, ultimately forming a complete association.

[0018] Preferably, in step S3, before calculating the file package maturity index M, a real-time data query request is initiated to an external business system through an application programming interface when responding to a status transition request. The external business system includes at least an enterprise resource planning system for querying resource availability and a human resources system for querying personnel qualification status, and the real-time status data returned by the query is used as the input for calculation.

[0019] Preferably, in step S4, if the transfer request is rejected, the method further includes: Generate a list containing all maturity parameters ( , , , The system generates a diagnostic report detailing the score and deductions; and based on the parameter that caused the lowest M value, it automatically pushes a corrective task with the diagnostic report to the preset responsible position through the workflow module.

[0020] Preferably, in step S5, the digital distribution operation includes providing a building information model visualization interface on the on-site operation terminal that is synchronized with the maintenance standard operating procedure steps. When the maintenance personnel check the completion of a step in the standard operating procedure list, the building information model visualization interface automatically performs at least one of the following operations: rendering the building information model component to be operated from the pending state to the completed state; automatically adjusting the camera perspective of the three-dimensional view to focus on the building information model component corresponding to the next standard operating procedure step.

[0021] Preferably, in step S6, the on-site execution data includes the actual completion time of the operation step, and the method further includes: comparing the actual completion time with the standard working hours defined in the maintenance document, and storing the deviation value in the historical working hour database associated with the operation step; when the number of valid data samples for the same operation step in the historical working hour database reaches a preset statistical quantity, a standard working hour reassessment process is automatically triggered, and a new recommended standard working hour based on historical data statistical analysis is output.

[0022] Compared to existing technologies, the advantages of this invention are as follows: This invention utilizes a unique maturity gating model to conduct multi-dimensional and quantitative quality assessments of data integrity, process compliance, risk mitigation, and resource readiness before issuing maintenance document packages. This transforms the traditional approval process, which relies on subjective experience, into an objective, data-driven decision-making process. This pre-emptive quality control mechanism ensures that every task package issued to the field possesses a high degree of completeness and executability, and can automatically generate diagnostic reports to guide corrective actions. This eliminates on-site rework, resource waste, and safety risks caused by insufficient preparation at the source, greatly improving the planning and reliability of maintenance work.

[0023] This invention constructs a full lifecycle digital management platform with BIM data as its core, establishing a complete information chain from task creation, process approval, on-site execution to data archiving. In particular, it enables the systematic writing back and association of on-site execution data to the BIM data model, transforming static maintenance documents into dynamically evolving digital assets. Through the accumulation and analysis of historical data, the system can automatically optimize key parameters such as standard working hours and convert on-site issues into traceable pending records, forming a closed loop of knowledge accumulation and continuous improvement, effectively enhancing the intelligence level of operation and maintenance management. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the module structure of the management system of the present invention.

[0025] Figure 2 This is an exemplary flowchart of the management method of the present invention.

[0026] Figure 3 This is an exemplary flowchart of the data association operation of the present invention. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments.

[0028] like Figure 1 As shown, a BIM-based digital management system for the entire lifecycle of maintenance document packages includes: The BIM data base module is configured to store the building information model and its associated maintenance documents, risk lists, and resource requirements. Based on a preset template, it encapsulates a set of building information model components and associated data related to a specific maintenance task into a digital maintenance document package object. In one embodiment, the BIM data base module serves as the system's unified data source. It stores the entire building or facility's BIM model and can construct a unified data object for each building information model component, such as a specific pump or valve, using its globally unique identifier as the primary key. This unified data object encapsulates structured data pointers associated with the component. These pointers point to the standard operating procedure (SOP) document, the safety risk analysis table (JSA), preset 3D section view parameters, and necessary work permit templates, such as hot work permits and work at height permits. When a maintenance task is created, such as "replace pump A," the system automatically encapsulates pump A from the BIM model, along with all associated documents, lists, and requirements, into an independent, digital maintenance document package object based on a preset "pump replacement" template.

[0029] The lifecycle workflow module is configured to drive maintenance document package objects through a pre-defined lifecycle state transition, including creation, review, release, execution, and archiving. In one embodiment, the lifecycle workflow module is a workflow engine that defines a clear state transition path for each maintenance document package object. For example, a document package is prepared by a planning engineer in the "Creation" state and then submitted to the "Review" state for review by technical experts. After approval, it transitions to the "Release" state, where the document package content is locked and awaits execution. After the on-site task is completed, it transitions to the "Execution" state, and finally, after all data is returned and confirmed, it enters the "Archived" state.

[0030] The maturity gating module, connected to the BIM data foundation module and lifecycle workflow module, is configured to calculate a document package maturity index M in real time before the status transition of the maintenance document package object. This index quantifies the completeness and executability of the document package. The formula for calculating the document package maturity index M is as follows: ,in, For data integrity, For process compliance, For risk reduction degree, Resource readiness.

[0031] In one embodiment, the formula integrates four key dimensions of maintenance preparation, calculating them through product rather than summation. This ensures that a significant deficiency in any dimension will lead to a substantial decrease in the overall maturity index M, thus reflecting the "weakest link" effect. The parameters are calculated as follows: (Data Completeness): Calculated by comparing the number of documents associated with the maintenance document package object with the number of documents required in the preset template. For example, a "Water Pump Replacement" document package template requires the association of four documents: SOP, JSA, work permit, and spare parts list. If the current document package only associates the first three documents and lacks the spare parts list, then... =3 / 4=0.75.

[0032] (Process Compliance): Calculated by comparing the number of completed review nodes in the stated lifecycle process module with the total number of review nodes. For example, the review process for a file package requires approval from three departments: technology, security, and production. If only the technology and security nodes have been approved so far, then... =2 / 3≈0.67.

[0033] (Risk Reduction Ratio): This is calculated by dividing the sum of the weights of the risk items for which mitigation measures have been developed in the risk list by the sum of the weights of all risk items. For example, a risk list contains three risk items with risk weights of high (5 points), medium (3 points), and low (1 point), for a total weight of 9 points. If the planning engineer develops effective mitigation measures only for the high and low risk items, and the sum of the weights of the risk items for which mitigation measures have been developed is 5 + 1 = 6 points, then... =6 / 9≈0.67.

[0034] (Resource Readiness): This is calculated by querying the associated resource management system to determine the ratio of confirmed available maintenance resources to the total required resources. For example, a task requires 2 certified fitters, 1 crane, and specific spare parts. During status transitions, the system initiates real-time data query requests to external Enterprise Resource Planning (ERP) and Human Resources Management (HRMS) systems via the application programming interface to check resource availability. If the query results show that only 1 qualified fitter is currently available and has a confirmed schedule, the crane has been booked, but the spare parts have not yet arrived, then the confirmed available resources are 2 items, and the total required resources are 3 items. =2 / 3≈0.67.

[0035] These are preset weighting coefficients for each item, used to adjust the importance of each dimension in the overall maturity calculation. For example, w1=1.0, w2=0.8, w3=1.2, w4=1.5 can be set to indicate that the system focuses more on risk reduction and resource readiness.

[0036] Based on the example data above, the maturity index M of this file package is M = (0.75^1.0)*(0.67^0.8)*(0.67^1.2)*(0.67^1.5)≈0.75*0.72*0.62*0.55≈0.18. This M value, which is far below 0.9, clearly indicates that the file package is far from being ready for release and execution.

[0037] When the M value is lower than the preset release threshold, the module will prevent its state transition and issue an alert. The on-site interaction module is configured to send maintenance document package objects that have reached the release threshold to the on-site operation terminal, collect on-site execution data associated with the maintenance document package objects, and write the on-site execution data back to the BIM data base module.

[0038] The BIM data base module is configured to build a unified data object for each building information model component, with its globally unique identifier as the primary key. The unified data object encapsulates the structured data pointers associated with the building information model component. The structured data pointers point to the maintenance standard operating procedure document, the safety risk analysis table, the preset three-dimensional section view parameters, and the necessary work permit template.

[0039] When calculating the maturity index M of a file package, the maturity gating module calculates the parameters as follows: The number of documents associated with the maintenance document package object is calculated by comparing the number of documents that should be included in the preset template. The result is calculated by comparing the number of completed review nodes in the statistical lifecycle process module with the total number of review nodes. This is derived by calculating the ratio of the sum of the weights of the risk items for which mitigation measures have been established in the risk list to the sum of the weights of all risk items; This is calculated by querying the associated resource management system and determining the ratio of confirmed maintenance resources to the total required resources.

[0040] The on-site interaction module is also configured to classify and process on-site execution data. If the on-site execution data is classified as "non-compliant item", the system will automatically generate a pending closure issue record associated with the corresponding building information model component in the BIM data base module. The existence of the pending closure issue record will be used as a negative adjustment factor by the maturity gating module in the maturity calculation of new maintenance document packages involving the building information model component.

[0041] like Figure 2 The following is a BIM-based digital management method for the entire lifecycle of maintenance document packages, as provided in this embodiment, including the following steps: Step S1: Select the building information model components related to the maintenance task in the building information model, and associate the building information model components with maintenance documents, risk lists and resource requirements according to the preset template to create a digital maintenance document package object.

[0042] Step S2: Initiate a lifecycle process for the maintenance file package object, including creation, review, release, execution, and archiving statuses; Step S3: When each state node in the lifecycle process is ready to move to the next node, a maturity assessment of the maintenance document package object is performed. The assessment includes assessments based on the formula... Calculate the maturity index M of a file package, where, For data integrity, For process compliance, For risk reduction degree, For resource readiness, to Preset weights.

[0043] Step S4: Perform a gating judgment. If the file package maturity index M is greater than or equal to the transfer threshold set for the current state node, the file package object is allowed to transfer to the next state; if it is less than, the transfer request is rejected. In one embodiment, if the transfer request is rejected in step S4, the method further includes: generating a diagnostic report containing the scores and deduction details of each maturity parameter item, for example, the report will clearly list "data integrity". 75%, Deduction item: Missing spare parts list. Based on the parameter that caused the lowest M value, such as the lowest resource readiness Ar, a corrective task with the diagnostic report is automatically pushed to the preset responsible position through the workflow module, such as the planner in the materials management department.

[0044] Step S5: For maintenance document packages that have been transferred to the execution status, digitize their contents and send them to the field operation terminal, and collect field execution data related to the execution process; Step S6 involves transmitting the field execution data back and associating it with the maintenance document package object for storage. After the process is completed, the maintenance document package object is set to an archived state. In one embodiment, step S6 further includes in-depth utilization of the field execution data. The field execution data includes the actual completion time of the operation step. The method further includes: comparing the actual completion time with the standard working hours defined in the maintenance document, and storing the deviation value in the historical working hour database associated with the operation step; when the number of valid data samples for the same operation step in the historical working hour database reaches a preset statistical number, such as 100 times, a standard working hour reassessment process is automatically triggered, and a suggested new standard working hour based on historical data statistical analysis is output.

[0045] like Figure 3 As shown, in step S1 of this embodiment, the data association operation includes: Step S101: Based on the predefined classification codes of the selected building information model components, automatically match and associate a set of basic general maintenance documents from the standard knowledge base.

[0046] Step S102 provides an interactive interface that allows users to add or replace dedicated maintenance documents for this specific maintenance task, ultimately forming a complete association.

[0047] In step S3, before calculating the document package maturity index M, a real-time data query request is initiated to an external business system through the application programming interface when responding to the status transition request. The external business system includes at least an enterprise resource planning system for querying resource availability and a human resources system for querying personnel qualification status, and the real-time status data returned by the query is used as the input for calculation.

[0048] In step S4, if the transfer request is rejected, the method further includes: Generate a list containing all maturity parameters ( , , , The system generates a diagnostic report detailing the score and deductions; and based on the parameter that caused the lowest M value, it automatically pushes a corrective task with an accompanying diagnostic report to the preset responsible position through the workflow module.

[0049] In step S5, the digital distribution operation includes providing a building information model visualization interface on the on-site operation terminal that is synchronized with the maintenance standard operating procedure steps. When the maintenance personnel check the completion of a step in the standard operating procedure list, the building information model visualization interface automatically performs at least one of the following operations: rendering the building information model component to be operated from the pending state to the completed state; automatically adjusting the camera perspective of the 3D view to focus on the building information model component corresponding to the next standard operating procedure step.

[0050] In step S6, the on-site execution data includes the actual completion time of the operation step. The method also includes: comparing the actual completion time with the standard working hours defined in the maintenance document, and storing the deviation value in the historical working hour database associated with the operation step; when the number of valid data samples for the same operation step in the historical working hour database reaches the preset statistical quantity, a standard working hour reassessment process is automatically triggered, and a new standard working hour recommendation based on historical data statistical analysis is output.

[0051] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A BIM-based digital management system for the entire lifecycle of maintenance document packages, characterized in that, include: The BIM data base module is configured to store building information models and associated maintenance documents, risk lists and resource requirements, and according to preset templates, encapsulate a set of building information model components and associated data related to a specific maintenance task into a digital maintenance file package object. The lifecycle process module is configured to drive the maintenance file package object through preset lifecycle state transitions such as creation, review, release, execution, and archiving; The maturity gating module, connected to the BIM data base module and the lifecycle process module, is configured to calculate a document package maturity index M in real time before the status transition of the maintenance document package object, quantifying its completeness and executability. The formula for calculating the document package maturity index M is as follows: ,in, For data integrity, For process compliance, For risk reduction degree, For resource readiness, The preset weighting coefficients for each item; when the value of M is lower than the preset release threshold, the module prevents the state transition and issues an early warning; The on-site interaction module is configured to send maintenance document package objects whose M value reaches the release threshold to the on-site operation terminal, collect on-site execution data associated with the maintenance document package objects, and write the on-site execution data back to the BIM data base module.

2. The BIM-based digital management system for the entire lifecycle of maintenance document packages as described in claim 1, characterized in that: The BIM data base module is configured to construct a unified data object for each building information model component, with its globally unique identifier as the primary key. The unified data object encapsulates a structured data pointer associated with the building information model component. The structured data pointer points to the maintenance standard operating procedure document, the safety risk analysis table, the preset three-dimensional section view parameters, and the necessary work permit template.

3. The BIM-based digital management system for the entire lifecycle of maintenance document packages as described in claim 1, characterized in that: When calculating the maturity index M of the file package, the maturity gating module calculates the parameters as follows: The number of documents associated with the maintenance document package object is calculated by comparing the number of documents that should be included in the preset template. The result is calculated by statistically analyzing the ratio of the number of completed review nodes in the lifecycle process module to the total number of review nodes. This is derived by calculating the ratio of the sum of the weights of the risk items for which mitigation measures have been formulated in the risk list to the sum of the weights of all risk items; This is calculated by querying the associated resource management system and determining the ratio of confirmed maintenance resources to the total required resources.

4. The BIM-based digital management system for the entire lifecycle of maintenance document packages as described in claim 1, characterized in that: The on-site interaction module is also configured to classify and process the on-site execution data. If the on-site execution data is classified as "non-compliant item", the system automatically generates a pending closure issue record associated with the corresponding building information model component in the BIM data base module. The existence of the pending closure issue record is used as a negative adjustment factor by the maturity gating module in the maturity calculation of new maintenance document packages involving the building information model component.

5. A BIM-based digital management method for the entire lifecycle of maintenance document packages, characterized in that, Includes the following steps: Step S1: Select the building information model components related to the maintenance task in the building information model, and according to the preset template, associate the building information model components with maintenance documents, risk lists and resource requirements to create a digital maintenance file package object. Step S2: Initiate a lifecycle process for the maintenance file package object, including creation, review, publication, execution, and archiving states; Step S3: When each state node in the lifecycle process is ready to move to the next node, a maturity assessment of the maintenance document package object is performed. The assessment includes assessments based on the formula... Calculate the maturity index M of a file package, where, For data integrity, For process compliance, For risk reduction degree, For resource readiness, to Preset weights; Step S4: Perform a gating judgment. If the maturity index M of the file package is greater than or equal to the transfer threshold set for the current state node, the maintenance file package object is allowed to transfer to the next state; if it is less than, the transfer request is rejected. Step S5: For maintenance document packages that have been transferred to the execution status, digitize their contents and send them to the field operation terminal, and collect field execution data related to the execution process; Step S6: The field execution data is sent back and associated with the maintenance file package object for storage. After the process is completed, the maintenance file package object is set to archived state.

6. The BIM-based digital management method for the entire lifecycle of maintenance document packages according to claim 5, characterized in that: In step S1, the data association operation includes: Step S101: Based on the predefined classification codes of the selected building information model components, automatically match and associate a set of basic general maintenance documents from the standard knowledge base; Step S102 provides an interactive interface that allows users to add or replace dedicated maintenance documents for this specific maintenance task, ultimately forming a complete association.

7. A BIM-based digital management method for the entire lifecycle of maintenance document packages according to claim 5, wherein in step S3, before calculating the maturity index M of the document package, a real-time data query request is initiated to an external business system through an application programming interface when responding to a status transition request. The external business system includes at least an enterprise resource planning system for querying resource availability and a human resources system for querying personnel qualification status, and the real-time status data returned by the query is used as the input for calculation.

8. A BIM-based digital management method for the entire lifecycle of maintenance document packages according to claim 5, wherein in step S4, if the transfer request is rejected, the method further includes: Generate a list containing all maturity parameters ( , , , The system generates a diagnostic report detailing the score and deductions; and based on the parameter that caused the lowest M value, it automatically pushes a corrective task with the diagnostic report to the preset responsible position through the workflow module.

9. A BIM-based digital management method for the entire lifecycle of maintenance document packages according to claim 5, wherein the digital distribution operation in step S5 includes providing a building information model visualization interface synchronized with the maintenance standard operating procedure steps on the on-site operation terminal. When maintenance personnel select to complete a step in the standard operating procedure list, the building information model visualization interface automatically performs at least one of the following operations: rendering the building information model component to be operated from a pending state to a completed state; automatically adjusting the camera perspective of the three-dimensional view to focus on the building information model component corresponding to the next standard operating procedure step.

10. A BIM-based digital management method for the entire lifecycle of maintenance document packages according to claim 5, wherein in step S6, the on-site execution data includes the actual completion time of the operation steps, and the method further includes: The actual completion time is compared with the standard working hours defined in the maintenance document, and the deviation value is stored in the historical working hours database associated with the operation step. When the number of valid data samples for the same operation step in the historical working hours database reaches the preset statistical quantity, a standard working hours re-evaluation process is automatically triggered, and a new standard working hour recommended based on historical data statistical analysis is output.

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