A method and system for digitizing a preventive maintenance schedule

Abstract

The present application relates to a kind of preventive maintenance schedule digital method and system, comprising: equipment failure mode analysis is carried out, and based on the list of to be formulated maintenance strategy generated by analysis result;According to the list of to be formulated maintenance strategy, equipment maintenance strategy analysis is summarized, and equipment preventive maintenance schedule is formed;According to the generation equipment structured maintenance module;According to equipment preventive maintenance schedule and equipment structured maintenance module, generate maintenance work order;Receive maintenance personnel in the maintenance measurement value recorded after according to maintenance work order is completed overhaul;Based on maintenance measurement value, equipment preventive maintenance schedule is optimized.The present application is from failure mode analysis, maintenance schedule formulation, maintenance procedure structuring, maintenance execution mobilization, to the whole range of business activities such as maintenance schedule closed loop optimization is digitized reconstruction, thoroughly break through the business barrier and data island in preventive maintenance process, solve the problem that current preventive maintenance schedule effectiveness cannot be continuously improved.

Description

Technical Field

[0001] This invention relates to the technical field of nuclear power equipment management, and more specifically, to a digital method and system for a preventive maintenance program. Background Technology

[0002] In the power industry, equipment is a crucial asset for enterprises, and preventative maintenance is one of the key measures to ensure its reliable operation. However, preventative maintenance involves multiple stages and disciplines from its planning to its execution, with operational barriers existing between these stages. Although a large amount of preventative maintenance has been performed and a wealth of data has been accumulated, this data is scattered across multiple business systems, creating data silos and hindering the company's ability to continuously improve the effectiveness of preventative maintenance.

[0003] With the continuous development of digital technology, digital transformation has become a mainstream trend for enterprises, and the digitization of equipment preventive maintenance programs is a typical requirement in this field. Currently, enterprises typically record equipment failure mode analysis, preventive maintenance program development, and preventive maintenance implementation in different business systems, and the level of digitization is generally low. There is insufficient application of digitization methods such as object digitization, rule digitization, and process digitization. This results in two problems: on the one hand, a large amount of preventive maintenance data is generated; on the other hand, data often forms silos, making it difficult to feed the most critical maintenance data back to the program development stage for continuous optimization, thus failing to guarantee the effectiveness of the preventive maintenance program. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a digital method and system for a preventive maintenance program.

[0005] The technical solution adopted by this invention to solve its technical problem is: constructing a digital method for a preventive maintenance program, comprising the following steps:

[0006] Perform failure mode analysis on the equipment and generate a list of maintenance strategies to be developed based on the analysis results;

[0007] Based on the list of maintenance strategies to be developed, the equipment maintenance strategies are analyzed and summarized to form a preventive maintenance outline for the equipment.

[0008] Based on the aforementioned preventive maintenance outline, the program is structured to generate a structured maintenance module for the equipment.

[0009] A maintenance work order is generated based on the equipment preventive maintenance outline and the equipment structured maintenance module;

[0010] Receive maintenance measurement values ​​recorded by maintenance personnel after completing the inspection according to the maintenance work order;

[0011] The preventive maintenance program for the equipment is optimized based on the maintenance measurements.

[0012] In the digital method for preventive maintenance program described in this invention, the step of performing failure mode analysis on the equipment and generating a list of maintenance strategies to be formulated based on the analysis results includes:

[0013] Perform failure mode analysis on the equipment to obtain a list of equipment failure modes;

[0014] Perform structural analysis on the equipment to obtain a parts list;

[0015] Analyze the components in the component list to obtain a component failure mode list;

[0016] Based on the component failure mode list and the equipment failure mode list, an importance analysis of the component failure modes is performed to obtain the important component failure modes.

[0017] Analyze the failure modes of the important components to obtain a list of causes for the component failure modes;

[0018] Based on the list of causes of component failure modes, the causes are classified, and the list of maintenance strategies to be formulated is generated.

[0019] In the digital method for preventive maintenance program described in this invention, the component failure mode cause list includes: design defects, manufacturing quality, maintenance quality, maintenance strategies, and related causes;

[0020] The step of classifying causes based on the component failure mode cause list and generating the maintenance strategy list to be formulated includes:

[0021] Based on the list of causes for component failure modes, the causes are classified to determine the category of the causes for component failure modes;

[0022] The causes of component failure modes are filtered by category to obtain the causes of component failure modes categorized as maintenance strategies;

[0023] The list of maintenance strategies to be developed is generated based on the component failure mode causes categorized as maintenance strategies.

[0024] In the digital method for preventive maintenance outlines described in this invention, the step of analyzing and summarizing maintenance strategies for the equipment based on the list of maintenance strategies to be formulated, and forming the equipment preventive maintenance outline, includes:

[0025] Based on the list of maintenance strategies to be developed, the causes of component failure modes of the equipment are analyzed on a unit basis to determine the maintenance strategies for the components and the connection of component maintenance measurement points.

[0026] The maintenance strategies for all components of the equipment are categorized.

[0027] The maintenance strategies for components that meet the classification criteria are summarized to form the preventive maintenance outline for the equipment.

[0028] In the digital method for preventive maintenance outlines described in this invention, the step of structuring the program according to the preventive maintenance outlines to generate a structured equipment maintenance module includes:

[0029] Based on the aforementioned preventive maintenance outline for the equipment, generate a maintenance procedure list;

[0030] Based on the equipment preventive maintenance outline, obtain the component maintenance measurement points associated with the equipment preventive maintenance outline;

[0031] The component maintenance measurement points associated with the preventive maintenance outline of the equipment are bound to the corresponding maintenance procedures in the maintenance procedure list, and the structured maintenance module of the equipment is generated after the binding of the component maintenance measurement points is completed.

[0032] In the digital method for preventive maintenance outlines described in this invention, the step of generating maintenance work orders based on the equipment preventive maintenance outline and the equipment structured maintenance module includes:

[0033] A maintenance order is generated based on the maintenance cycle of the equipment preventive maintenance program.

[0034] The structured maintenance module generates a maintenance work order corresponding to the maintenance order and sends the maintenance work order to the maintenance personnel.

[0035] The present invention also provides a digital system for a preventive maintenance program, comprising:

[0036] The Failure Mode Analysis (FMD) unit is used to perform Failure Mode Analysis on the equipment and generate a list of maintenance strategies to be developed based on the analysis results.

[0037] The maintenance outline formulation unit is used to analyze and summarize the maintenance strategies for the equipment based on the list of maintenance strategies to be formulated, and to form a preventive maintenance outline for the equipment.

[0038] The structured module generation unit is used to structure the program according to the equipment preventive maintenance outline and generate a structured maintenance module for the equipment.

[0039] Maintenance execution mobile unit, used for:

[0040] A maintenance work order is generated based on the equipment preventive maintenance outline and the equipment structured maintenance module;

[0041] Receive the maintenance measurement values ​​recorded by the maintenance personnel after completing the maintenance according to the maintenance work order;

[0042] The preventive maintenance program for the equipment is optimized based on the maintenance measurements.

[0043] In the digital system of the preventive maintenance program described in this invention, the failure mode analysis unit includes:

[0044] The equipment failure mode analysis module is used to perform failure mode analysis on the equipment and obtain a list of equipment failure modes.

[0045] The equipment structure analysis module is used to perform structural analysis on the equipment and obtain a list of equipment components.

[0046] The component failure mode analysis module is used to analyze the components in the component list to obtain a component failure mode list;

[0047] The component failure mode importance analysis module is used to perform importance analysis on component failure modes based on the component failure mode list and the equipment failure mode list to obtain important component failure modes.

[0048] The failure mode cause analysis module is used to analyze the failure modes of the important components and obtain a list of component failure mode causes.

[0049] The cause classification module is used to classify causes based on the component failure mode cause list and generate the maintenance strategy list to be formulated.

[0050] In the digital system for preventive maintenance programs described in this invention, the maintenance program development unit includes:

[0051] The maintenance strategy analysis module is used to analyze the causes of component failure modes of equipment based on the list of maintenance strategies to be formulated, and to determine the maintenance strategy of the components and the connection of component maintenance measurement points.

[0052] The maintenance strategy classification module is used to classify the maintenance strategies for all components of the equipment.

[0053] The maintenance outline generation module is used to summarize the maintenance content of the maintenance strategies for components that meet the classification conditions, and form the preventive maintenance outline for the equipment.

[0054] In the digital system for preventive maintenance outlines described in this invention, the structured module generation unit includes:

[0055] The work order generation module is used to generate a list of maintenance procedures based on the preventive maintenance outline of the equipment.

[0056] The component maintenance measurement point acquisition module is used to obtain component maintenance measurement points associated with the equipment preventive maintenance outline based on the equipment preventive maintenance outline.

[0057] The structured program generation module is used to bind the component maintenance measurement points associated with the equipment preventive maintenance outline to the corresponding maintenance procedures in the maintenance procedure list, and to generate the equipment structured maintenance module after the component maintenance measurement points are bound.

[0058] The digital method and system for implementing the preventive maintenance outline of this invention have the following beneficial effects: It includes: performing failure mode analysis on equipment and generating a list of maintenance strategies to be formulated based on the analysis results; analyzing and summarizing maintenance strategies for the equipment based on the list of maintenance strategies to be formulated, forming a preventive maintenance outline for the equipment; generating a structured maintenance module for the equipment; generating maintenance work orders based on the preventive maintenance outline and the structured maintenance module; receiving maintenance measurement values ​​recorded by maintenance personnel after completing inspections according to the maintenance work orders; and optimizing the preventive maintenance outline based on the maintenance measurement values. This invention digitally reconstructs all business activities from failure mode analysis, maintenance outline formulation, structuring of maintenance procedures, mobile maintenance execution, to closed-loop optimization of the maintenance outline, completely breaking down business barriers and data silos in the preventive maintenance process, and solving the current problem of being unable to continuously improve the effectiveness of preventive maintenance outlines. Attached Figure Description

[0059] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0060] Figure 1 This is a flowchart illustrating the digital method for the preventive maintenance outline provided by the present invention.

[0061] Figure 2 This is a schematic diagram of the data model of the five data objects involved in the fault mode analysis of equipment provided by the present invention;

[0062] Figure 3 This is an important component failure mode analysis flowchart provided by the present invention;

[0063] Figure 4 This is a schematic diagram of the data model of the seven data objects involved in the formulation of the preventive maintenance program provided by the present invention;

[0064] Figure 5 This is a schematic diagram of the calculation rules for the optimized maintenance cycle provided by the present invention;

[0065] Figure 6 This is a schematic diagram of the preventive maintenance outline analysis process provided by the present invention;

[0066] Figure 7This is a schematic diagram of the data model of the six data objects involved in the program structuring provided by the present invention;

[0067] Figure 8 This is a schematic diagram of the data model of the six data objects involved in the mobile maintenance execution provided by the present invention;

[0068] Figure 9 This is a functional block diagram of the digital system for preventive maintenance outlines provided by the present invention. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0070] To address the current situation where preventive maintenance involves numerous operational steps, resulting in business barriers and data silos, and lacking a complete digital method for integrated optimization, thus hindering the continuous improvement of the effectiveness of preventive maintenance programs, this invention provides a digital method and system for preventive maintenance programs.

[0071] Specifically, such as Figure 1 As shown, the digitalization method for this preventive maintenance program includes the following steps:

[0072] Step S101. Perform fault mode analysis on the equipment and generate a list of maintenance strategies to be formulated based on the analysis results.

[0073] In this embodiment, the process of performing fault mode analysis on the equipment and generating a list of maintenance strategies to be formulated based on the analysis results includes: performing fault mode analysis on the equipment to obtain a list of equipment fault modes; performing structural analysis on the equipment to obtain a list of equipment components; analyzing the components in the component list to obtain a list of component fault modes; performing importance analysis on the component fault modes based on the component fault mode list and the equipment fault mode list to obtain important component fault modes; analyzing the important component fault modes to obtain a list of causes for component fault modes; and classifying the causes based on the list of causes for component fault modes to generate a list of maintenance strategies to be formulated.

[0074] The component failure mode cause list includes: design defects, manufacturing quality, repair quality, repair strategies, and related causes. In this embodiment, the process of classifying causes based on the component failure mode cause list to generate a list of repair strategies to be formulated includes: classifying causes based on the component failure mode cause list to determine the categories of component failure mode causes; filtering the categories of component failure mode causes to obtain component failure mode causes categorized as repair strategies; and generating a list of repair strategies to be formulated based on the obtained component failure mode causes categorized as repair strategies.

[0075] Specifically, the process begins with a failure mode analysis (FMA) of the equipment to obtain a list of equipment failure modes. Next, the equipment's structure is disassembled and analyzed to obtain a list of its components. Then, FMA is performed on all obtained components to obtain a list of component failure modes. Following this, an importance analysis is conducted on the component failure modes to identify the most important ones. Finally, a cause analysis is performed on these important component failure modes to obtain a list of causes for those failure modes. Finally, the causes for component failure modes that fall under the category of maintenance strategies are selected from the list of causes for those failure modes, and a list of maintenance strategies to be developed is generated.

[0076] This step involves five data objects, specifically as follows: Figure 2 As shown, this includes equipment, equipment failure modes, components, component failure modes, and the causes of component failure modes. For example... Figure 2 As shown, one device corresponds to multiple device failure modes, one device corresponds to multiple components, one component corresponds to multiple component failure modes, one component failure mode affects multiple device failure modes, and one component failure mode corresponds to multiple component failure modes.

[0077] Specifically, the device object is encoded as: S i S represents the device, and i represents the serial number. The corresponding device list set can be represented as S = (S1, ..., S2). i ,…,S r ), where S i (i = 1, 2, ..., r) represents the i-th device, and r represents the total number of devices.

[0078] The equipment failure mode object is encoded as: S i .G j S i The symbol represents the device, the dot (.) represents the connector, G represents the fault mode, and j represents the sequence number. The corresponding device fault mode list can be represented as SG = (S i .G1,…,S i .G j ,…,S i .G m ), where Si .G j (i = 1, ..., r; j = 1, ..., m) represents device S. i The j-th failure mode, m represents the device S i The total number of failure modes.

[0079] Encode the component object as: S i #B k S i The symbol represents the device, # represents the connector, B represents the component, and k represents the serial number. The corresponding component list can be represented as S#B = (S i #B1,…,S i #B k ,…,S i #B n ), where S i #B k (i = 1, ..., r; k = 1, ..., n) represents device S. i The k-th component, where n represents device S i The total number of components.

[0080] The component failure mode object is encoded as: S i #B k .G s S i #B k The symbol represents a component, a dot (.) represents a connector, G represents a fault mode, and j represents a serial number. The corresponding list of component fault modes can be represented as S#BG = (S i #B k .G1,…,S i #B k .G s ,…,S i #B k .G t ), where S i #B k .G s (i = 1, ..., r; k = 1, ..., n; s = 1, ..., t) represents component S. i #B k The s-th failure mode, where t represents component S i #B k Total number of failure modes.

[0081] For component failure mode S i #B k .G s Perform importance analysis (rule digitization) to determine the importance of the rules. Figure 3 As shown, J ij S representsi #B k .G s For equipment failure mode S i .G j The influence value, if (J i1 +,…,+J ij ,…,J im If )>0, then the failure mode S of this component is... i #B k .G s It is an important failure mode (i.e., an important component failure mode); otherwise, the component failure mode S i #B k .G s This is a non-critical failure mode.

[0082] Furthermore, the component failure mode cause object is encoded as: S i #B k .G s .Y o S i #B k .G s This represents the component failure mode, "." represents the connector, "Y" represents the cause of the failure mode, and "o" represents the sequence number. For important failure modes, cause analysis is performed, and the corresponding list of component failure mode causes can be represented as S#BGY = (S i #B k .G s .Y1,…,S i #B k .G s .Y o ,…,S i #B k .G s .Y p ), where S i #B k .G s .Y o (i = 1, ..., r; k = 1, ..., n, s = 1, ..., t, o = 1, ..., p) represents the component failure mode S. i #B k .G s The oth cause of the failure mode, p represents the component failure mode S. i #B k .G s Total number of causes.

[0083] Failure mode cause S i #B k .G s .Y oThe causes are categorized, with the following categories (digitized rules): design defects, manufacturing quality, repair quality, repair strategies, and related causes. Different cause categories correspond to different management strategies. Finally, a list of repair strategies to be developed is generated by selecting cause categories "repair strategies" from the component failure mode cause list S#BGY.

[0084] Step S102. Analyze and summarize the maintenance strategies for the equipment based on the list of maintenance strategies to be formulated, and form a preventive maintenance outline for the equipment.

[0085] In this embodiment, the process of analyzing and summarizing maintenance strategies for the equipment based on the list of maintenance strategies to be formulated, and forming a preventive maintenance outline for the equipment, includes: analyzing the causes of component failure modes on a per-equipment basis according to the list of maintenance strategies to be formulated, determining the maintenance strategies for the components and the corresponding maintenance measurement points; classifying the maintenance strategies for all components of the equipment; and summarizing the maintenance content of the maintenance strategies for components that meet the classification criteria to form a preventive maintenance outline for the equipment. The classification criteria are: the same maintenance cycle and the same maintenance method.

[0086] Specifically, firstly, based on the list of maintenance strategies to be formulated generated in step S101, the maintenance strategies (including maintenance content, maintenance methods, maintenance cycles, etc.) of all components within the scope of the equipment are analyzed item by item, taking the equipment as a unit, and the maintenance measurement points of the connected components are also analyzed. Then, the analysis results of the maintenance strategies of all components within the scope of the equipment are summarized, and the maintenance strategies that meet the criteria of "same maintenance cycle and same maintenance method" are classified into an outline, and the maintenance content is summarized to form the preventive maintenance outline of the equipment.

[0087] This step involves seven data objects, specifically as follows: Figure 4 As shown, this includes: equipment, components, maintenance measurement points, component failure modes, causes of component failure modes, maintenance strategies, and maintenance outlines. For example... Figure 4 As shown, one device corresponds to multiple components, one component corresponds to multiple component maintenance measurement points, one component corresponds to multiple component failure modes, one component failure mode corresponds to multiple component failure mode causes, one component failure mode cause corresponds to multiple component maintenance strategies, one component maintenance strategy corresponds to one component maintenance measurement point, one device maintenance outline corresponds to multiple component maintenance strategies, and one device corresponds to multiple device maintenance outlines.

[0088] Specifically, the component repair measurement points are coded as follows: S i #B k &C s S i #B kThe symbol represents a component, '&' represents a connector, 'C' represents a component maintenance measurement point, and 's' represents a serial number. The corresponding list of component maintenance measurement points can be represented as S#B&C=(S i #B k &C1,…,S i #B k &C s ,…,S i #B k &C y ), where S i #B k &C s (s=1,2,…,y) represents S i #B k The s-th maintenance measurement point of the component, where y represents the total number of maintenance measurement points. (Corresponding to S) i #B k &C s The set of measurement record lists can be represented as S i #B k &C s＝ (S i #B k &C s -1,…,S i #B k &C s -n), where S i #B k &C s -n indicates S i #B k &C s Record the nth measurement value of the component maintenance measurement point.

[0089] The component repair strategy is coded as follows: S i #B k .G s .Y o PC a S i #B k .G s .Y o This indicates the cause of the component failure mode, - represents a connector, PC represents the maintenance strategy, and a represents the sequence number. The corresponding component maintenance strategy list can be represented as S#BGY-PC=(S i #B k .G s .Y o -PC1,…,S i #B k .G s .Y o PC a ,…,Si #B k .G x .Y o PC e ), where S i #B k .G s .Y o PC a (a = 1, 2, ..., x) represents the cause S of component failure mode. i #B k .G s .Y o The maintenance strategy for component a is given by [a], where x represents the total number of maintenance strategies. This corresponds to S. i #B k .G s .Y o PC a The component maintenance strategy includes: maintenance content, maintenance methods, and maintenance cycle. The process of connecting component maintenance measurement points is as follows:

[0090] The corresponding repair details are provided in text description by experts based on their experience.

[0091] Experts will connect the appropriate component repair measurement point S from S#B&C according to the corresponding repair content. i #B k &C s .

[0092] The corresponding maintenance method classification rules (digitalized rules) are: in-operation monitoring, standby testing, out-of-operation maintenance, and out-of-operation dismantling, which are selected by experts based on experience.

[0093] The initial maintenance cycle is determined by experts based on experience, and thereafter depends on the specific S-type circuit. i #B k &C s Measurement record list set (S i #B k &C s -1,…,S i #B k &C s -n) Optimize maintenance cycle (rule digitization), calculation rules are as follows: Figure 5 As shown.

[0094] The rules for determining an extended maintenance cycle are as follows: if two consecutive maintenance measurements show "no fault mode detected," the maintenance cycle will be extended by 1.5 times. The rules for determining a shortened maintenance cycle are as follows: if the most recent maintenance measurement shows "fault mode detected," the maintenance cycle will be shortened by 0.5 times.

[0095] Furthermore, the preventive maintenance program for equipment is coded as follows: S i -PM e S i The symbol represents the equipment, the hyphen (-) represents the connector, PM represents the maintenance outline, and e represents the sequence number. The corresponding maintenance outline list can be represented as S-PM = (S i -PM1,…,S i -PM e ,…,S i -PM w ), where S i -PM e (e = 1, 2, ..., w) represents S i The e-th maintenance outline for the equipment, where w represents the total number of maintenance outlines.

[0096] The analysis process of the corresponding equipment preventive maintenance outline is as follows: Figure 6 As shown, with device S i For the unit, the cause of the failure mode S of its components within its range i #B k .G s .Y o Component maintenance strategy analysis i #B k .G s .Y o PC a This process involves compiling a maintenance strategy list for S#BGY-PC components, grouping components that meet the criteria of "same maintenance cycle & same maintenance method" into a single outline, and summarizing the maintenance content to form the equipment preventive maintenance outline S. i -PM e .

[0097] Step S103. Based on the equipment preventive maintenance outline, structure the program to generate the equipment structured maintenance module.

[0098] In this embodiment, the process of structuring the program according to the equipment preventive maintenance outline to generate the equipment structured maintenance module includes: generating a maintenance procedure list based on the equipment preventive maintenance outline; obtaining component maintenance measurement points associated with the equipment preventive maintenance outline based on the equipment preventive maintenance outline; binding the component maintenance measurement points associated with the equipment preventive maintenance outline to the corresponding maintenance procedures in the maintenance procedure list; and generating the equipment structured maintenance module after completing the binding of the component maintenance measurement points.

[0099] Specifically, firstly, based on the equipment preventive maintenance outline formulated in step S102, detailed maintenance execution steps (i.e., maintenance procedure list) are generated; then, the component maintenance measurement points associated with the equipment preventive maintenance outline are attached to the corresponding maintenance procedures, and after all attachments are completed, a structured maintenance module (i.e., equipment structured maintenance procedure) is formed.

[0100] This step involves six data objects during the structuring of the maintenance procedure, specifically as follows: Figure 7 As shown, this includes: equipment, components, component maintenance measurement points, component maintenance strategies, equipment maintenance outline, and structured maintenance procedures. The structured maintenance procedures are the detailed maintenance execution steps outlined in the equipment preventative maintenance outline. For example... Figure 7 As shown, one device corresponds to multiple components, one component corresponds to multiple component maintenance measurement points, one component corresponds to multiple component maintenance strategies, one component maintenance strategy corresponds to one component maintenance measurement point, one device preventive maintenance outline corresponds to multiple component maintenance strategies, one device corresponds to multiple device preventive maintenance outlines, one device preventive maintenance outline corresponds to one structured maintenance procedure, one structured maintenance procedure corresponds to multiple component maintenance strategies, and one structured maintenance procedure corresponds to multiple component maintenance measurement points.

[0101] Specifically, the structured maintenance procedure for equipment is coded as: S i -JM b S i The symbol represents the equipment, the hyphen (-) represents the connector, JM represents the structured maintenance procedure, and b represents the sequence number. The corresponding equipment structured maintenance procedure list can be represented as S-JM = (S i -JM1,…,S i -JM b ,…,S i -JM k ), where S i -JM b (b = 1, 2, ..., k) represents S i The b-th structured maintenance procedure for the equipment, where k represents the total number of structured maintenance procedures. Corresponding to S i -JM b The maintenance procedure list can be represented as S i -JM b＝ (S i -JM b -1,…,S i -JM b -n), where S i -JM b -n indicates S i -JM bThe nth maintenance step in the structured maintenance procedure. (Corresponding to S) i -JM b The maintenance procedure includes: the procedure content and the measurement points for the maintenance of the connected parts. The specific process is as follows:

[0102] The corresponding process details are provided in text form by the person in charge of process preparation.

[0103] From the corresponding equipment maintenance outline S i -PM e Select the measurement points from the associated component repair measurement point list S#B&C and attach them to the corresponding process.

[0104] Process Example S i -JM b -n: Open the end cap to check the condition of the rubber diaphragm (connect measuring point S) i #B k &C s Check for aging cracks on the diaphragm surface and replace with a new rubber diaphragm.

[0105] Step S104. Generate a maintenance work order based on the equipment preventive maintenance outline and the equipment structured maintenance module.

[0106] In this embodiment, generating a maintenance work order based on the equipment preventive maintenance outline and the equipment structured maintenance module includes: generating a maintenance order based on the maintenance cycle of the equipment preventive maintenance outline; generating a maintenance work order corresponding to the maintenance order based on the equipment structured maintenance module; and sending the maintenance work order to the maintenance personnel.

[0107] Step S105. Receive the maintenance measurement values ​​recorded by the maintenance personnel after completing the inspection according to the maintenance work order.

[0108] Step S106. Optimize the equipment preventive maintenance program based on maintenance measurement values.

[0109] Specifically, maintenance orders are generated periodically according to the maintenance cycle in the equipment preventive maintenance outline established in step S102. An instantiated maintenance work order is generated by the structured maintenance program corresponding to the equipment preventive maintenance outline, and the maintenance work order is sent to the corresponding maintenance personnel. The maintenance personnel then use a mobile terminal at the maintenance site to guide the execution of the maintenance work order and record maintenance measurement values. After all procedures are completed, the equipment preventive maintenance outline established in step S102 is optimized based on the recorded maintenance measurement values ​​to optimize the maintenance cycle of the preventive maintenance outline.

[0110] The data objects involved are six in total, as follows: Figure 8As shown, this includes: equipment, components, component maintenance measurement points, equipment preventive maintenance plan, equipment structured maintenance procedure, and equipment maintenance work order. The equipment maintenance work order is an example of the implementation of the equipment preventive maintenance plan. For example... Figure 7 As shown, one device corresponds to multiple components, one component corresponds to multiple component maintenance measurement points, one device corresponds to multiple device preventive maintenance outlines, one device preventive maintenance outline corresponds to one device structured maintenance procedure, one device maintenance outline corresponds to multiple device maintenance work orders, one device structured maintenance procedure corresponds to multiple device maintenance work orders, one device structured maintenance procedure corresponds to multiple component maintenance measurement points, and one device maintenance work order corresponds to multiple component maintenance measurement points.

[0111] It should be noted that the equipment maintenance outline mentioned in this invention is the equipment preventive maintenance outline.

[0112] Specifically, equipment maintenance work orders are coded as follows: S i -GM c S i The symbol represents the equipment, the hyphen (-) represents the connector, GM represents the maintenance work order, and c represents the sequence number. The corresponding equipment maintenance work order list can be represented as S - GM = (S i -GM1,…,S i -GM c ,…,S i -GM u ), where S i -GM c (c = 1, 2, ..., u) represents S i The cth maintenance work order for the equipment, where u represents the total number of times the work order has been executed.

[0113] Corresponding to S i -GM c The maintenance procedure list can be represented as S i -GM c＝ (S i -GM c -1,…,S i -GM c -n), where S i -GM c -n indicates S i -GM c The nth repair operation in the repair work order. Corresponding equipment repair order S. i -GM c From maintenance outline S i -PM e Automatically triggered periodically based on the maintenance cycle. Corresponding equipment maintenance order process S. i -GM c-n is the structured maintenance procedure S corresponding to the maintenance outline. i -JM b Automatically generated instantiation. Corresponding to S. i -JM b The mobile execution process for maintenance procedures is as follows:

[0114] Maintenance manager downloads S i -GM c Repair work orders are sent to mobile devices, such as mobile phones and tablets.

[0115] The maintenance supervisor uses a mobile terminal at the maintenance site to guide the execution of S i -JM b -n Repair work order process list, if the process includes a measurement point S i #B k &C s The measurement requirements will then automatically pop up, and the maintenance manager will record the measurement values, including text, images, videos, and measurement results (digitized rules), including detected fault modes and undetected fault modes.

[0116] Complete S i -JM b After all processes are completed, the corresponding measurement point S i #B k &C s Newly added measurement records are summarized into list set S i #B k &C s＝ (S i #B k &C s -1,…,S i #B k &C s -n), and return to step B to optimize the maintenance outline cycle.

[0117] like Figure 9 As shown, the present invention also provides a digital system for a preventive maintenance program, comprising:

[0118] The Failure Mode Analysis Unit 901 is used to perform failure mode analysis on the equipment and generate a list of maintenance strategies to be formulated based on the analysis results.

[0119] In this embodiment, the fault mode analysis unit 901 includes: an equipment fault mode analysis module, used to perform fault mode analysis on the equipment and obtain a list of equipment fault modes; an equipment structure analysis module, used to perform structural analysis on the equipment and obtain a list of equipment components; a component fault mode analysis module, used to analyze the components in the component list and obtain a list of component fault modes; a component fault mode importance analysis module, used to perform importance analysis on component fault modes based on the component fault mode list and the equipment fault mode list and obtain important component fault modes; a fault mode cause analysis module, used to analyze important component fault modes and obtain a list of component fault mode causes; and a cause classification module, used to classify causes based on the list of component fault mode causes and generate a list of maintenance strategies to be formulated.

[0120] The maintenance outline development unit 902 is used to analyze and summarize the maintenance strategies for the equipment based on the list of maintenance strategies to be developed, and to form a preventive maintenance outline for the equipment.

[0121] In this embodiment, the maintenance outline formulation unit 902 includes: a maintenance strategy analysis module, used to analyze the causes of component failure modes of the equipment based on the list of maintenance strategies to be formulated, and determine the maintenance strategies of the components and the associated maintenance measurement points; a maintenance strategy classification module, used to classify the maintenance strategies of all components of the equipment; and a maintenance outline generation module, used to summarize the maintenance content of the maintenance strategies of the components that meet the classification conditions to form a preventive maintenance outline for the equipment.

[0122] The structured module generation unit 903 is used to structure the program according to the equipment preventive maintenance outline and generate the equipment structured maintenance module.

[0123] In this embodiment, the structured module generation unit 903 includes: a work order generation module, used to generate a maintenance procedure list based on the equipment preventive maintenance outline; a component maintenance measurement point acquisition module, used to obtain component maintenance measurement points associated with the equipment preventive maintenance outline based on the equipment preventive maintenance outline; and a structured program generation module, used to bind the component maintenance measurement points associated with the equipment preventive maintenance outline to the corresponding maintenance procedures in the maintenance procedure list, and generate a structured maintenance module for the equipment after completing the binding of the component maintenance measurement points.

[0124] The maintenance execution mobile unit 904 is used to: generate maintenance work orders based on the equipment preventive maintenance outline and the equipment structured maintenance module; receive maintenance measurement values ​​recorded by maintenance personnel after completing the maintenance according to the maintenance work order; and optimize the equipment preventive maintenance outline based on the maintenance measurement values.

[0125] Specifically, the specific coordination and operation processes between the various units in the digital system of the preventive maintenance program can be referred to the digital method of the preventive maintenance program mentioned above, and will not be repeated here.

[0126] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0127] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0128] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0129] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They do not limit the scope of protection of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A method for digitizing a preventive maintenance program, characterized in that, Includes the following steps: Perform failure mode analysis on the equipment and generate a list of maintenance strategies to be developed based on the analysis results, including: Perform failure mode analysis on the equipment to obtain a list of equipment failure modes; Perform structural analysis on the equipment to obtain a parts list; Analyze the components in the component list to obtain a component failure mode list; Based on the component failure mode list and the equipment failure mode list, an importance analysis of the component failure modes is performed to obtain the important component failure modes. Analyze the failure modes of the important components to obtain a list of causes for the component failure modes; Based on the list of causes of component failure modes, the causes are classified, and the list of maintenance strategies to be formulated is generated. Based on the list of maintenance strategies to be developed, a maintenance strategy analysis and summary are conducted for the equipment to form a preventive maintenance outline, including: Based on the list of maintenance strategies to be developed, the causes of component failure modes of the equipment are analyzed on a unit basis to determine the maintenance strategies for the components and the connection of component maintenance measurement points. The maintenance strategies for all components of the equipment are categorized. The maintenance strategies for components that meet the classification criteria are summarized to form the preventive maintenance outline for the equipment. Based on the aforementioned preventive maintenance outline, the program is structured to generate a structured equipment maintenance module, including: Based on the aforementioned preventive maintenance outline for the equipment, generate a maintenance procedure list; Based on the equipment preventive maintenance outline, obtain the component maintenance measurement points associated with the equipment preventive maintenance outline; The component maintenance measurement points associated with the equipment preventive maintenance outline are bound to the corresponding maintenance procedures in the maintenance procedure list, and the equipment structured maintenance module is generated after the component maintenance measurement points are bound. A maintenance work order is generated based on the equipment preventive maintenance outline and the equipment structured maintenance module; Receive maintenance measurement values ​​recorded by maintenance personnel after completing the inspection according to the maintenance work order; The preventive maintenance program for the equipment is optimized based on the maintenance measurements.

2. The method for digitizing the preventive maintenance program according to claim 1, characterized in that, The component failure mode cause list includes: design defects, manufacturing quality, repair quality, repair strategies, and related causes; The step of classifying causes based on the component failure mode cause list and generating the maintenance strategy list to be formulated includes: Based on the list of causes for component failure modes, the causes are classified to determine the category of the causes for component failure modes; The causes of component failure modes are filtered by category to obtain the causes of component failure modes categorized as maintenance strategies; The list of maintenance strategies to be developed is generated based on the component failure mode causes categorized as maintenance strategies.

3. The method for digitizing the preventive maintenance program according to claim 1, characterized in that, The process of generating maintenance work orders based on the equipment preventive maintenance outline and the equipment structured maintenance module includes: A maintenance order is generated based on the maintenance cycle of the equipment preventive maintenance program. The structured maintenance module generates a maintenance work order corresponding to the maintenance order and sends the maintenance work order to the maintenance personnel.

4. A digital system for a preventive maintenance program, applied to the digital method for a preventive maintenance program as described in claim 1, characterized in that, include: The Failure Mode Analysis (FMD) unit is used to perform Failure Mode Analysis on the equipment and generate a list of maintenance strategies to be developed based on the analysis results. The maintenance outline formulation unit is used to analyze and summarize the maintenance strategies for the equipment based on the list of maintenance strategies to be formulated, and to form a preventive maintenance outline for the equipment. The structured module generation unit is used to structure the program according to the equipment preventive maintenance outline and generate a structured maintenance module for the equipment. Maintenance execution mobile unit, used for: A maintenance work order is generated based on the equipment preventive maintenance outline and the equipment structured maintenance module; Receive the maintenance measurement values ​​recorded by the maintenance personnel after completing the maintenance according to the maintenance work order; The preventive maintenance program for the equipment is optimized based on the maintenance measurements.

5. The digital system for preventive maintenance program according to claim 4, characterized in that, The fault mode analysis unit includes: The equipment failure mode analysis module is used to perform failure mode analysis on the equipment and obtain a list of equipment failure modes. The equipment structure analysis module is used to perform structural analysis on the equipment and obtain a list of equipment components. The component failure mode analysis module is used to analyze the components in the component list to obtain a component failure mode list; The component failure mode importance analysis module is used to perform importance analysis on component failure modes based on the component failure mode list and the equipment failure mode list to obtain important component failure modes. The failure mode cause analysis module is used to analyze the failure modes of the important components and obtain a list of component failure mode causes. The cause classification module is used to classify causes based on the component failure mode cause list and generate the maintenance strategy list to be formulated.

6. The digital system for preventive maintenance program according to claim 4, characterized in that, The maintenance outline development unit includes: The maintenance strategy analysis module is used to analyze the causes of component failure modes of equipment based on the list of maintenance strategies to be formulated, and to determine the maintenance strategy of the components and the connection of component maintenance measurement points. The maintenance strategy classification module is used to classify the maintenance strategies for all components of the equipment. The maintenance outline generation module is used to summarize the maintenance content of the maintenance strategies for components that meet the classification conditions, and form the preventive maintenance outline for the equipment.

7. The digital system for preventive maintenance program according to claim 4, characterized in that, The structured module generation unit includes: The work order generation module is used to generate a list of maintenance procedures based on the preventive maintenance outline of the equipment. The component maintenance measurement point acquisition module is used to obtain component maintenance measurement points associated with the equipment preventive maintenance outline based on the equipment preventive maintenance outline. The structured program generation module is used to bind the component maintenance measurement points associated with the equipment preventive maintenance outline to the corresponding maintenance procedures in the maintenance procedure list, and to generate the equipment structured maintenance module after the component maintenance measurement points are bound.

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