Maintenance plan management system and management method thereof

Abstract

The invention provides a maintenance plan management system and a management method thereof, and the system comprises a maintenance model digitalization module which is used for recording the data of a plurality of annual maintenance models and a plurality of monthly regular maintenance models, each annual maintenance model is in one-to-one correspondence with a maintenance item, and each monthly regular maintenance model is in one-to-one correspondence with a maintenance item; the maintenance scheduling rule digitization module is used for recording a maintenance scheduling rule; and the maintenance plan automatic scheduling module is used for determining a maintenance plan scheduling result according to the data in the plurality of annual maintenance models and the plurality of monthly regular maintenance models and the maintenance scheduling rule. According to the invention, the digital management of the maintenance model and the maintenance scheduling rule and the automatic generation of the maintenance plan scheduling result can be realized, the dependence of the maintenance plan scheduling on the artificial experience is reduced, and the improvement of the maintenance plan management efficiency is facilitated.

Description

Technical Field

[0001] The present application belongs to the field of manufacturing maintenance technology, and in particular relates to a maintenance plan management system and method thereof. Background Art

[0002] For process-based steel companies, the health of production line equipment directly impacts production efficiency and safety. For this reason, relevant technologies have adopted a production line maintenance model based on spot inspections and scheduled maintenance. To meet the maintenance needs of each production line, coordinate limited maintenance resources, and minimize the impact of maintenance on production and energy balances, it is necessary to rationally and efficiently manage the maintenance plans for each production line. However, due to the large number of production lines and complex maintenance scheduling rules at steel companies, in practice, maintenance operations rely heavily on manual experience for ad hoc scheduling, resulting in inefficient management. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of this application is to provide a maintenance plan management system and a management method thereof to solve the above-mentioned problems.

[0004] In a first aspect, the present application provides a maintenance plan management system, comprising:

[0005] A maintenance model digitization module is used to record data of multiple annual maintenance models and multiple monthly maintenance models, each of the annual maintenance models corresponds to a maintenance item, and each of the monthly maintenance models corresponds to a maintenance item;

[0006] Maintenance scheduling rule digitization module, used to record maintenance scheduling rules;

[0007] The maintenance plan automatic scheduling module is used to determine the maintenance plan scheduling result based on the data in the multiple annual maintenance models and the multiple monthly maintenance models, as well as the maintenance scheduling rules.

[0008] Optionally, the data of the annual maintenance model includes information about the production line to which the maintenance item belongs, model identification, maintenance cycle, adjustable range of maintenance cycle, maintenance duration, and maintenance inclusion relationship with other maintenance items;

[0009] The data of the monthly maintenance model includes information about the production line to which the maintenance project belongs, model identification, maintenance cycle, adjustable range of maintenance cycle, maintenance duration and maintenance duration switching information. The maintenance duration switching information includes whether the maintenance duration is switched at a fixed time, the start time of the maintenance duration switching, the end time of the maintenance duration switching and the maintenance duration after switching.

[0010] Optionally, the maintenance scheduling rules include:

[0011] Maintenance compatible scheduling rules, including information on individual production lines that always need maintenance or need to be maintained at the same time at a specified time, information on individual production lines and production line groups, and information on each production line group;

[0012] The maintenance exclusive scheduling rules include information about each single production line that cannot be maintained at all or cannot be maintained at the same time at a specified time, information about a single production line and a production line group, and information about each production line group.

[0013] Optionally, the maintenance plan automatic scheduling module is used to determine the maintenance plan scheduling results based on the data in multiple annual maintenance models and multiple monthly maintenance models, the maintenance scheduling rules, the actual completion time of the last maintenance on each production line and the actual maintenance items, and a preset target planning mathematical model. The target planning mathematical model is a model that takes minimizing the maintenance cycle fluctuation as the objective function and solves the objective function with the maintenance scheduling rules as constraints.

[0014] Optionally, the system further comprises:

[0015] The maintenance plan visualization module is used to visualize the maintenance plan scheduling results and receive visualization adjustments to the maintenance plan scheduling results.

[0016] Optionally, the system further comprises:

[0017] The maintenance plan release module is used to release the maintenance plan scheduling results after confirmation and automatically trigger the approval process for maintenance plan release, and to send the maintenance plan scheduling results after confirmation to the corresponding maintenance management personnel when the approval process for maintenance plan release is passed.

[0018] Optionally, the system further comprises a maintenance demand management module for receiving maintenance demand information and automatically triggering an approval process for the maintenance demand information;

[0019] The maintenance demand management module is also used to update the maintenance plan scheduling results issued by the maintenance plan issuing module based on the maintenance demand information when the approval process of the maintenance demand information is passed, and send the updated maintenance plan scheduling results to the corresponding maintenance management personnel.

[0020] In a second aspect, the present application provides a maintenance plan management method, which is applied to the above-mentioned maintenance plan management system, and the method includes:

[0021] Recording data of multiple annual maintenance models and multiple monthly maintenance models through the maintenance model digitization module, wherein each annual maintenance model corresponds to a maintenance item one-to-one, and each monthly maintenance model corresponds to a maintenance item one-to-one;

[0022] Recording maintenance scheduling rules through the maintenance scheduling rule digitization module;

[0023] The maintenance plan automatic scheduling module determines the maintenance plan scheduling result according to the data in the multiple annual maintenance models and the multiple monthly maintenance models, as well as the maintenance scheduling rules.

[0024] Optionally, the method further includes:

[0025] Visually display the maintenance plan scheduling results through the maintenance plan visualization module, and visually adjust the maintenance plan scheduling results;

[0026] Confirm the maintenance plan scheduling results that need to be published through the maintenance plan publishing module, and receive the corresponding maintenance plan scheduling results after confirmation and publication through the maintenance plan publishing module;

[0027] Reporting maintenance demand information through the maintenance demand management module, and receiving the maintenance plan scheduling result updated by the maintenance demand management module based on the maintenance demand information;

[0028] The maintenance performance tracking module tracks the maintenance performance data of each maintenance plan in the updated maintenance plan scheduling result.

[0029] In a third aspect, the present application provides an electronic device provided by the present application, the electronic device comprising:

[0030] one or more processors;

[0031] A storage device is used to store one or more programs, which, when executed by the one or more processors, enables the electronic device to implement the maintenance plan management method.

[0032] The computer-readable storage medium provided in the present application stores a computer program thereon, and when the computer program is executed by a processor of a computer, the computer is caused to execute the maintenance plan management method.

[0033] Beneficial effects of this technical solution: This technical solution can realize the digital management of maintenance models (annual maintenance model and monthly maintenance model) and maintenance scheduling rules, as well as the automatic generation of maintenance plan scheduling results, reducing the dependence of maintenance plan scheduling on manual experience, which is conducive to improving the efficiency of maintenance plan management.

[0034] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, serving to explain the principles of the present application. It is obvious that the drawings described below are merely some embodiments of the present application, and a person of ordinary skill in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0036] Figure 1 is a structural diagram of a maintenance plan management system shown in an exemplary embodiment of the present application;

[0037] Figure 2 is a schematic diagram of a digitized annual maintenance model shown in an exemplary embodiment of the present application;

[0038] Figure 3 is a schematic diagram of a digital maintenance scheduling rule shown in an exemplary embodiment of the present application;

[0039] Figure 4 is a schematic diagram showing a maintenance plan scheduling result in the form of a Gantt chart according to an exemplary embodiment of the present application;

[0040] Figure 5 It is a flowchart of a maintenance plan management method shown in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0041] The following will describe the embodiments of the present application with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand the other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for the purpose of illustrating the present application and are not intended to limit the scope of protection of the present application.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. Therefore, the illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0043] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present application. However, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present application difficult to understand.

[0044] See also Figure 1 , Figure 1 FIG. 1 is a structural diagram of a maintenance plan management system shown in an exemplary embodiment of the present application. Figure 1 As shown, in an exemplary embodiment, the maintenance plan management system includes a maintenance model digitization module 110, a maintenance scheduling rule digitization module 120, and a maintenance plan automatic scheduling module 130. Each module is described in detail below.

[0045] The maintenance model digitization module 110 is used to record data of multiple annual maintenance models and multiple monthly maintenance models, each of the annual maintenance models corresponds to a maintenance item one-to-one, and each of the monthly maintenance models corresponds to a maintenance item one-to-one.

[0046] The maintenance model digitization module 110 is mainly used to digitize the data of the maintenance model required for maintenance plan management, including the above-mentioned annual maintenance model and monthly maintenance model.

[0047] Maintenance items refer to specific objects requiring maintenance. Typically, a single production line has multiple maintenance items. For example, a converter production line might include maintenance items for the furnace, the furnace mouth, and the flue. The data in the annual maintenance model can be understood as including maintenance data for the maintenance items included in the annual overhaul; the data in the monthly maintenance model can be understood as including maintenance data for the maintenance items included in the monthly overhaul.

[0048] The maintenance scheduling rule digitization module 120 is used to record the maintenance scheduling rules.

[0049] The above maintenance scheduling rules are used to constrain the maintenance plan scheduling results that are finally generated.

[0050] The maintenance plan automatic scheduling module 130 is used to determine the maintenance plan scheduling result according to the data in the multiple annual maintenance models and the multiple monthly maintenance models, as well as the maintenance scheduling rules.

[0051] The maintenance plan scheduling results mainly include maintenance information such as production line information, maintenance type, maintenance item, maintenance start time and maintenance end time of each maintenance plan, and production line information such as production line name and production line code.

[0052] The maintenance plan management system of this application can be used for production operation scheduling of steel enterprises to realize digital management of maintenance plan scheduling rules and maintenance models (including annual maintenance models and monthly maintenance models), reducing the dependence of maintenance plan preparation on manual experience.

[0053] Optionally, the data of the annual maintenance model includes information about the production line to which the maintenance item belongs, a model identifier, a maintenance cycle, an adjustable range of the maintenance cycle, maintenance duration, and a maintenance inclusion relationship with other maintenance items.

[0054] The above-mentioned production line information includes, for example, the production line code and production line name. The model identifier can be a model number, wherein the model numbering rules can be selected based on actual needs and management methods. For example, the model numbering can be sequentially numbered for the maintenance models of the global production line, or each production line can be set to have independent numbering, and the maintenance models in each production line can be numbered sequentially.

[0055] The aforementioned maintenance inclusion relationship with other maintenance items indicates whether the maintenance of the current maintenance item also includes the maintenance of other maintenance items within the production line. For example, if the maintenance item in the current annual maintenance model is the furnace mouth section, and the data recorded in the maintenance inclusion relationship with other maintenance items is furnace service, then the furnace service also needs to be repaired when the furnace mouth section of the current production line is repaired.

[0056] For ease of understanding, Figure 2 The schematic diagram of the digitization of the annual maintenance model is shown as an example. Figure 2 As shown, the annual maintenance model ( Figure 2 The data of annual maintenance model (hereinafter referred to as annual maintenance model) includes production line information, model number (each production line has a separate number), maintenance inclusion relationship with other maintenance items ( Figure 2 The abbreviation includes items), maintenance duration, maintenance cycle and maintenance cycle adjustable range ( Figure 2 and lower service adjustment limits in the . Figure 2 In the annual maintenance model, the data also includes maintenance items (i.e. Figure 2 There is a one-to-one correspondence between maintenance models and maintenance items. Maintenance model digitization module 110 records the maintenance items corresponding to the maintenance models, facilitating understanding of the maintenance models. Furthermore, a separate table can be provided to record the correspondence between production line information, model numbers, and maintenance items, allowing maintenance item queries to be performed using production line information and model numbers.

[0057] Through the above configuration, the embodiment of the present application can integrate the data of the maintenance items corresponding to the annual maintenance model, which is convenient for subsequent management and query, thereby improving work efficiency.

[0058] Optionally, the data of the monthly maintenance model includes information about the production line to which the maintenance item belongs, model identification, maintenance cycle, adjustable range of maintenance cycle, maintenance duration and maintenance duration switching information. The maintenance duration switching information includes whether the maintenance duration is switched at a fixed time, the start time of the maintenance duration switching, the end time of the maintenance duration switching and the maintenance duration after switching.

[0059] The data of the monthly maintenance model is partially similar to the data of the annual maintenance model. Please refer to the embodiment of the annual maintenance model. To avoid repetition, this will not be described again.

[0060] Compared to the annual maintenance model, the monthly maintenance model also includes maintenance duration switching information. The monthly maintenance model's data describes the maintenance items that require monthly maintenance. Because the maintenance duration of maintenance items can change with seasonal changes and production trends, the present invention integrates this maintenance duration switching information into the monthly maintenance model's data.

[0061] Through the above configuration, the embodiment of the present application can integrate the data of the maintenance items corresponding to the monthly maintenance model, which is convenient for subsequent management and query, thereby improving work efficiency.

[0062] Optionally, the maintenance scheduling rules include:

[0063] Maintenance compatible scheduling rules, including information on individual production lines that always need maintenance or need to be maintained at the same time at a specified time, information on individual production lines and production line groups, and information on each production line group;

[0064] The maintenance exclusive scheduling rules include information about each single production line that cannot be maintained at all or cannot be maintained at the same time at a specified time, information about a single production line and a production line group, and information about each production line group.

[0065] For ease of understanding, the present application provides Figure 3 The following is a diagram of the digital maintenance scheduling rules. Figure 3 Provide a brief description.

[0066] See also Figure 3 , Figure 3 The first two lines in the table inspect the contents of the mutually exclusive scheduling rules. Specifically, Figure 3 The first row and the first column in the figure show multiple sintering-related single production lines, and the principle is mutual exclusion, that is, the multiple single production lines in the first row and the first column cannot be repaired at the same time. Figure 3 The second row, first column and the second row, third column represent two production line groups, which are mutually exclusive. That is, the two production line groups in the second row, first column and the second row, third column cannot be repaired at the same time. Figure 3 The information that maintenance cannot be performed all the time or cannot be performed simultaneously at a specified time is not shown. In actual applications, a new column can be added to represent this.

[0067] Figure 3 The contents of the maintenance compatible scheduling rules are also included. Please refer to the above description of the contents of the maintenance exclusive scheduling rules. To avoid repetition, we will not elaborate on this.

[0068] Through the above configuration, the embodiment of the present application can realize the digitization of maintenance compatible scheduling rules and maintenance exclusive scheduling rules, and perform automatic scheduling based on the maintenance compatible scheduling rules and maintenance exclusive scheduling rules, which is beneficial to improving the reliability of automatic scheduling of maintenance plans.

[0069] Optionally, the maintenance plan automatic scheduling module 130 is used to determine the maintenance plan scheduling results based on the data in multiple annual maintenance models and multiple monthly maintenance models, the maintenance scheduling rules, the actual completion time of the last maintenance on each production line and the actual maintenance items, and a preset target planning mathematical model. The target planning mathematical model is a model that takes minimizing the maintenance cycle fluctuation as the objective function and solves the objective function with the maintenance scheduling rules as constraints.

[0070] The actual completion time of the last maintenance performance of each production line is used to determine the start time of the current maintenance scheduling rule result. Specifically, the current maintenance scheduling rule can use the actual completion time of the last maintenance performance as the starting point, combined with the preset time interval, to determine the start time of the current maintenance scheduling rule result.

[0071] The last actual maintenance item on each production line is used to determine the starting item for the maintenance scheduling rule. Specifically, starting with the last actual maintenance item, the next maintenance item (including the starting item) can be determined according to the order of the maintenance items on the corresponding production line in the maintenance model.

[0072] Through the above-mentioned target programming mathematical model, the maintenance plan scheduling result with the minimum fluctuation of the maintenance cycle as the optimization goal can be obtained, which is conducive to improving the stability of the maintenance cycle of each maintenance project.

[0073] Alternatively, see Figure 1 , the system further comprises:

[0074] The maintenance plan visualization module 140 is used to visualize the maintenance plan scheduling result and receive visualization adjustments to the maintenance plan scheduling result.

[0075] In this embodiment, the visual display can be displayed with the help of relevant icons, and the visual adjustment can be made by dragging and dropping with the mouse or typing on the keyboard. Visual adjustment includes adding, deleting, and modifying the maintenance plan. The content that can be modified includes the production line code, production line name, maintenance type (type is annual maintenance or monthly maintenance), maintenance items, maintenance start time, and maintenance end time.

[0076] As an example, the maintenance plan visualization module 140 can be visualized and adjusted in the form of a Gantt chart. Figure 4 , Figure 4 This is a schematic diagram of the maintenance plan scheduling results presented in the form of a Gantt chart provided in an embodiment of the present application. Figure 4 The maintenance plan scheduling results can be adjusted by dragging the mouse and inputting on the keyboard.

[0077] The embodiment of the present application sets the above-mentioned maintenance plan visualization module 140 to achieve visual display and adjustment of maintenance plan scheduling results, which is intuitive, easy to understand and convenient to manage.

[0078] Alternatively, see Figure 1 , the system further comprises:

[0079] The maintenance plan publishing module 150 is used to publish the maintenance plan scheduling results after confirmation and automatically trigger the approval process for maintenance plan release, and to send the maintenance plan scheduling results after confirmation to the corresponding maintenance management personnel when the approval process for maintenance plan release is passed.

[0080] In this embodiment, a person can manually determine whether to publish the maintenance plan scheduling result.

[0081] The maintenance plan publishing module 150 can send the maintenance plans in the maintenance plan scheduling results to the maintenance managers of the corresponding factories / production lines according to the above steps. For example, if the maintenance plan scheduling results include a maintenance plan for production line a and a maintenance plan for production line b, the maintenance plan for production line a will be sent to the maintenance manager of production line a, the maintenance plan for production line b will be sent to the maintenance manager of production line b, and the maintenance plans for both production lines a and b will be sent to the maintenance manager of both production lines a and b.

[0082] The embodiment of the present application sets up the above-mentioned maintenance release module to automatically trigger the approval process after the release is confirmed. The maintenance plan will be released to the corresponding maintenance management personnel only after the approval process is passed, which is conducive to improving the process compliance of maintenance release.

[0083] Alternatively, see Figure 1 , the system further includes a maintenance demand management module 160 for receiving maintenance demand information and automatically triggering an approval process for the maintenance demand information;

[0084] The maintenance demand management module 160 is also used to update the maintenance plan scheduling results released by the maintenance plan release module 150 based on the maintenance demand information when the approval process of the maintenance demand information is passed, and send the updated maintenance plan scheduling results to the corresponding maintenance management personnel.

[0085] Maintenance request information is submitted by maintenance managers at factories or production lines. It includes three types of requests: new plans, cancellations, and modifications. This stage of the application process follows the release of a maintenance plan. In addition to including maintenance plan information such as production line code, production line name, maintenance type, maintenance items, maintenance start and end times, the request reason and attached materials are also required for subsequent approval.

[0086] By setting the above-mentioned maintenance demand management module 160 in the embodiment of the present application, after the maintenance plan scheduling result is released, the maintenance management personnel can still apply for update by filling in the maintenance demand information, which is conducive to improving the flexibility and adaptability of management.

[0087] Alternatively, see Figure 1 , the system further comprises:

[0088] The maintenance performance tracking module 170 is used to track the maintenance performance data of each maintenance plan in the updated maintenance plan scheduling result. The maintenance performance data includes the actual performance start time, the actual performance end time and the deviation between the actual maintenance duration and the theoretical maintenance duration of each maintenance plan. The theoretical maintenance duration is the maintenance duration in the updated maintenance plan scheduling result.

[0089] The maintenance performance tracking module 170 can determine the maintenance plan execution status by tracking maintenance performance data.

[0090] Tracking maintenance performance data includes recording maintenance performance data and corresponding maintenance plan information. For example, the maintenance plan information includes the production line code, production line name, and maintenance plan number (which can be automatically generated for each maintenance plan) corresponding to the maintenance plan.

[0091] Based on the above, the embodiment of the present application tracks the maintenance performance data of the maintenance plan, including recording the corresponding production line code, production line name, maintenance plan number, maintenance performance start time, maintenance performance end time, and the deviation between the actual maintenance time and the theoretical maintenance time.

[0092] Based on the maintenance performance tracking module 170, the maintenance plan execution progress can be accurately controlled, thereby improving the maintenance plan management efficiency.

[0093] See also Figure 5 , Figure 5 This is a flowchart of a maintenance plan management method provided in an embodiment of the present application, including steps S510-S530, which are described in detail below.

[0094] Step S510: Recording data of a plurality of annual maintenance models and a plurality of monthly maintenance models through the maintenance model digitization module 110, wherein each annual maintenance model corresponds to a maintenance item one-to-one, and each monthly maintenance model corresponds to a maintenance item one-to-one;

[0095] Step S520 , recording the maintenance scheduling rules through the maintenance scheduling rule digitization module 120 ;

[0096] In step S530 , the maintenance plan automatic scheduling module 130 determines a maintenance plan scheduling result based on the data in the multiple annual maintenance models and the multiple monthly maintenance models, as well as the maintenance scheduling rules.

[0097] Alternatively, see Figure 5 , the method further comprises:

[0098] Step S540: Visually displaying the maintenance plan scheduling result and visually adjusting the maintenance plan scheduling result through the maintenance plan visualization module 140;

[0099] Step S550: confirming the maintenance plan scheduling result to be published through the maintenance plan publishing module 150, and receiving the corresponding maintenance plan scheduling result after confirmation and publication through the maintenance plan publishing module 150;

[0100] Step S560 , reporting maintenance demand information through the maintenance demand management module 160 , and receiving the maintenance plan scheduling result updated by the maintenance demand management module 160 based on the maintenance demand information;

[0101] In step S570 , the maintenance performance tracking module 170 tracks the maintenance performance data of each maintenance plan in the updated maintenance plan scheduling result.

[0102] It should be noted that the maintenance plan management method in the embodiment of the present application is applied to Figure 1 and Figure 2 The maintenance plan management system shown in the figure can refer to the various processes executed by each module in the method. Figure 1 and Figure 2 The corresponding embodiments will not be described again to avoid repetition.

[0103] This maintenance plan management method, through digital management of maintenance plan scheduling rules and models, enables automated pre-scheduling of maintenance plans, reduces reliance on manual experience in maintenance plan compilation, and enables precise control of maintenance plan execution progress, improving maintenance plan management efficiency. This method is versatile and universal, meeting the maintenance scheduling needs of steel companies with diverse production processes.

[0104] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, any equivalent modifications or alterations accomplished by a person of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this application shall be covered by the claims of this application.

Claims

1. A maintenance plan management system, characterized in that: include: A maintenance model digitization module is used to record data of multiple annual maintenance models and multiple monthly maintenance models, each of the annual maintenance models corresponds to a maintenance item, and each of the monthly maintenance models corresponds to a maintenance item; Maintenance scheduling rule digitization module, used to record maintenance scheduling rules; The maintenance plan automatic scheduling module is used to determine the maintenance plan scheduling result based on the data in the multiple annual maintenance models and the multiple monthly maintenance models, as well as the maintenance scheduling rules.

2. The maintenance plan management system according to claim 1, characterized in that: The data of the annual maintenance model includes information about the production line to which the maintenance item belongs, model identification, maintenance cycle, adjustable range of maintenance cycle, maintenance duration, and maintenance inclusion relationship with other maintenance items; The data of the monthly maintenance model includes information about the production line to which the maintenance project belongs, model identification, maintenance cycle, adjustable range of maintenance cycle, maintenance duration and maintenance duration switching information. The maintenance duration switching information includes whether the maintenance duration is switched at a fixed time, the start time of the maintenance duration switching, the end time of the maintenance duration switching and the maintenance duration after switching.

3. The maintenance plan management system according to claim 1, characterized in that: The maintenance scheduling rules include: Maintenance compatible scheduling rules, including information on individual production lines that always need maintenance or need to be maintained at the same time at a specified time, information on individual production lines and production line groups, and information on each production line group; The maintenance exclusive scheduling rules include information about each single production line that cannot be maintained at all or cannot be maintained at the same time at a specified time, information about a single production line and a production line group, and information about each production line group.

4. The maintenance plan management system according to claim 1 or 3, characterized in that: The automatic maintenance plan scheduling module is used to determine the maintenance plan scheduling results based on the data in multiple annual maintenance models and multiple monthly maintenance models, the maintenance scheduling rules, the actual completion time of the last maintenance performance of each production line and the actual maintenance items, and a preset target planning mathematical model. The target planning mathematical model is a model that takes minimizing the fluctuation of the maintenance cycle as the objective function and solves the objective function with the maintenance scheduling rules as constraints.

5. The maintenance plan management system according to claim 1, characterized in that: The system further comprises: The maintenance plan visualization module is used to visualize the maintenance plan scheduling results and receive visualization adjustments to the maintenance plan scheduling results.

6. The maintenance plan management system according to claim 1 or 5, characterized in that: The system further comprises: The maintenance plan release module is used to release the maintenance plan scheduling results after confirmation and automatically trigger the approval process for maintenance plan release, and to send the maintenance plan scheduling results after confirmation to the corresponding maintenance management personnel when the approval process for maintenance plan release is passed.

7. The maintenance plan management system according to claim 6, characterized in that: The system also includes a maintenance demand management module for receiving maintenance demand information and automatically triggering the approval process of the maintenance demand information; The maintenance demand management module is also used to update the maintenance plan scheduling results released by the maintenance plan release module based on the maintenance demand information when the approval process of the maintenance demand information is passed, and send the updated maintenance plan scheduling results to the corresponding maintenance management personnel.

8. The maintenance plan management system according to claim 7, characterized in that: The system further comprises: The maintenance performance tracking module is used to track the maintenance performance data of each maintenance plan in the updated maintenance plan scheduling results. The maintenance performance data includes the actual performance start time, actual performance end time and the deviation between the actual maintenance duration and the theoretical maintenance duration of each maintenance plan. The theoretical maintenance duration is the maintenance duration in the updated maintenance plan scheduling results.

9. A maintenance plan management method, characterized in that: Applied to the maintenance plan management system according to any one of claims 1 to 8, the method comprises: Recording data of multiple annual maintenance models and multiple monthly maintenance models through the maintenance model digitization module, wherein each annual maintenance model corresponds to a maintenance item one-to-one, and each monthly maintenance model corresponds to a maintenance item one-to-one; Recording maintenance scheduling rules through the maintenance scheduling rule digitization module; The maintenance plan automatic scheduling module determines a maintenance plan scheduling result based on the data in the multiple annual maintenance models and the multiple monthly maintenance models, as well as the maintenance scheduling rules.

10. The maintenance plan management method according to claim 9, characterized in that: The method further comprises: Visually display the maintenance plan scheduling results through the maintenance plan visualization module, and visually adjust the maintenance plan scheduling results; Confirm the maintenance plan scheduling results that need to be published through the maintenance plan publishing module, and receive the corresponding maintenance plan scheduling results after confirmation and publication through the maintenance plan publishing module; Reporting maintenance demand information through the maintenance demand management module, and receiving the maintenance plan scheduling result updated by the maintenance demand management module based on the maintenance demand information; The maintenance performance tracking module tracks the maintenance performance data of each maintenance plan in the updated maintenance plan scheduling result.

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