CN113393176A - Maintenance decision method based on product factual state - Google Patents
Maintenance decision method based on product factual state Download PDFInfo
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Abstract
The invention relates to a maintenance decision method based on a product factual state. The invention provides the method for carrying out state judgment, influence content judgment and maintenance resource judgment based on the static information and the dynamic information of the product, and executing different maintenance decisions in a targeted manner according to the judgment result, thereby realizing the active targeted maintenance of the product, further realizing the design of an auxiliary logistics support system, improving the efficiency and reducing the maintenance cost.
Description
Technical Field
The invention relates to the technical field of maintenance management, in particular to a maintenance decision method based on product factual state.
Background
Maintenance management is an important component of system health management. The integration level, complexity and intelligent degree of the system are increased rapidly along with the rapid development of scientific technology, and the traditional fault diagnosis and maintenance support technology is difficult to adapt to the new requirements of modernization gradually. In order to meet the requirements of informatization development on high speed and reliability of a novel system and maintenance management, a series of maintenance support suggestions or decisions are provided by fault prediction and combination of the existing resource information, the traditional passive after-service maintenance or periodic maintenance is changed into active targeted maintenance, and the method has important significance for assisting the design of a back-service support system, improving the efficiency and reducing the maintenance cost.
Disclosure of Invention
The invention aims to provide a maintenance decision method based on the product factual state so as to realize active targeted maintenance of products, further realize design of an auxiliary logistics support system, improve efficiency and reduce maintenance cost.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a maintenance decision method based on product factual state, which comprises the following steps:
acquiring static information and dynamic information of a product;
judging whether the current state of the product is in a dangerous or fault state or not according to the static information and the dynamic information to obtain a first judgment result;
if the first judgment result shows that the task state is the battle state, acquiring a current fault event of the product, judging whether the task state executed by the product at the current moment is in the battle state according to the static information and the dynamic information, and acquiring a second judgment result;
if the second judgment result shows yes, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a third judgment result;
if the third judgment result shows that the current fault event is the first fault event, immediately repairing the current fault event according to the static information and the dynamic information of the product based on the first decision scheme;
if the second judgment result shows no, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a fourth judgment result;
if the fourth judgment result shows that the product is a fault, maintaining the current fault event according to the static information and the dynamic information of the product based on a second decision scheme;
and if the fourth judgment result shows that the product is not the current total maintenance plan, determining the maintenance plan time of the product according to the current total maintenance plan, and maintaining the current fault event when the maintenance plan time is up.
Optionally, based on the first decision scheme, the first-aid repair is performed on the current failure event according to the static information and the dynamic information of the product, and specifically includes:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the first-aid repair is successful, a measure of starting a backup product is adopted for first-aid repair;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is in a state of being repaired, performing first-aid repair on the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
and if the ninth judgment result shows that the fault event is yes or the tenth judgment result shows that the fault event is yes, immediately assigning maintenance personnel, and performing emergency repair on the current fault event by using guarantee resources or alternative resources in the current maintenance resources.
Optionally, the maintaining the current fault event according to the static information and the dynamic information of the product based on the second decision scheme specifically includes:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the backup product is started, adopting a measure of starting the backup product to maintain;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is the normal product, maintaining the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
if the ninth judgment result shows that the maintenance personnel can be assigned, the guarantee resources or the alternative resources in the current maintenance resources can be used for making a maintenance scheme, and the optimal maintenance scheme is selected for maintenance;
and if the eighth judgment result shows that the product is not the current maintenance plan, determining the maintenance plan time of the product according to the current overall maintenance plan, and maintaining the product when the maintenance plan time is reached.
Optionally, the static information includes product composition information, function backup information, task state information, detection condition information, and maintenance requirement information; the dynamic information includes handling event information, fault impact information, degradation state information, timing condition information, and guaranteed resource information.
A method for maintenance decision-making based on product truth status, the method comprising the steps of:
acquiring static information and dynamic information of a product;
judging whether the current state of the product is in a dangerous or fault state or not according to the static information and the dynamic information to obtain a first judgment result;
if the first judgment result shows that the system is the same as the system, all fault events of the product and the system to which each fault event belongs are obtained, and all fault events are sequenced according to the importance of the system to which the fault events belong;
and sequentially taking all the fault events as current fault events based on the sequencing result, and executing the following steps:
judging whether the task state executed by the product at the current moment is in an operational state or not according to the static information and the dynamic information to obtain a second judgment result;
if the second judgment result shows yes, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a third judgment result;
if the third judgment result shows that the failure event is detected to be a positive failure event, performing group emergency repair or individual emergency repair on the current failure event according to the static information and the dynamic information of the product based on the first decision scheme;
if the second judgment result shows no, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a fourth judgment result;
if the fourth judgment result shows that the fault event is detected to be a fault, performing group maintenance or individual maintenance on the current fault event according to the static information and the dynamic information of the product based on a second decision scheme;
and if the fourth judgment result shows that the product is not the current total maintenance plan, determining the maintenance plan time of the product according to the current total maintenance plan, and maintaining the current fault event when the maintenance plan time is up.
Optionally, based on the first decision-making scheme, the group emergency repair or the individual emergency repair is performed on the current failure event according to the static information and the dynamic information of the product, and specifically includes:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the first-aid repair is successful, a measure of starting a backup product is adopted for first-aid repair;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is in a state of being repaired, performing first-aid repair on the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
if the ninth judgment result shows yes or the tenth judgment result shows yes, judging whether a system to which the current fault event belongs has a to-be-maintained event or whether other systems have the to-be-maintained event within a maintenance radius taking the current fault event as a circle center, and obtaining an eleventh judgment result;
if the eleventh judgment result shows that the current fault event and the events to be maintained in the system to which the current fault event belongs are subjected to group emergency repair, or the current fault event and the events to be maintained in the maintenance radius which takes the current fault event as the circle center in other systems are subjected to group emergency repair;
and if the eleventh judgment result shows that the fault event is not detected, immediately assigning maintenance personnel, and performing emergency repair on the current fault event by using guarantee resources or alternative resources in the current maintenance resources.
Optionally, based on the second decision scheme, group maintenance or individual maintenance is performed on the current fault event according to the static information and the dynamic information of the product, which specifically includes:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the backup product is started, adopting a measure of starting the backup product to maintain;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is the normal product, maintaining the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
if the ninth judgment result shows that the maintenance personnel can be assigned, the guarantee resources or the alternative resources in the current maintenance resources can be used for making a maintenance scheme, and the optimal maintenance scheme is selected for maintenance;
if the eighth judgment result shows that the system is not maintained or the other systems have the event to be maintained within the maintenance radius taking the current fault event as the circle center, judging whether the system to which the current fault event belongs has the event to be maintained or not, and obtaining a twelfth judgment result;
if the twelfth judgment result shows that the current fault event and the events to be maintained in the system to which the current fault event belongs are grouped, or the current fault event and the events to be maintained in the maintenance radius which takes the current fault event as the circle center in other systems are grouped, an optimal grouped maintenance scheme is formulated and selected, and grouped maintenance is carried out;
and if the twelfth judgment result shows that the maintenance is not performed, an individual maintenance scheme is formulated according to currently assignable maintenance personnel, guarantee resources or alternative resources in the current maintenance resources, and an optimal individual maintenance scheme is selected for individual maintenance.
And if the eighth judgment result shows that the product is not the current maintenance plan, determining the maintenance plan time of the product according to the current overall maintenance plan, and maintaining the product when the maintenance plan time is reached.
Optionally, the static information includes product composition information, function backup information, task state information, detection condition information, and maintenance requirement information; the dynamic information includes handling event information, fault impact information, degradation state information, timing condition information, and guaranteed resource information.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a maintenance decision method based on product factual state, which comprises the following steps: acquiring static information and dynamic information of a product; judging whether the current state of the product is in a dangerous or fault state or not according to the static information and the dynamic information to obtain a first judgment result; if the first judgment result shows that the task state is the battle state, acquiring a current fault event of the product, judging whether the task state executed by the product at the current moment is in the battle state according to the static information and the dynamic information, and acquiring a second judgment result; if the second judgment result shows yes, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a third judgment result; if the third judgment result shows that the current fault event is the first fault event, immediately repairing the current fault event according to the static information and the dynamic information of the product based on the first decision scheme; if the second judgment result shows no, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a fourth judgment result; if the fourth judgment result shows that the product is a fault, maintaining the current fault event according to the static information and the dynamic information of the product based on a second decision scheme; and if the fourth judgment result shows that the product is not the current total maintenance plan, determining the maintenance plan time of the product according to the current total maintenance plan, and maintaining the current fault event when the maintenance plan time is up. The invention provides a maintenance decision generation method combining static information and dynamic information of a product, which realizes active targeted maintenance of the product, further realizes design of an auxiliary logistics support system, improves efficiency and reduces maintenance cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a flowchart of a maintenance decision method based on a product fact status according to embodiment 1 of the present invention;
fig. 2 is a flowchart of a maintenance decision method based on a product fact status according to embodiment 2 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a maintenance decision method based on the product factual state so as to realize active targeted maintenance of products, further realize design of an auxiliary logistics support system, improve efficiency and reduce maintenance cost.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention relates to a product maintenance management method based on the factual state of a product. The maintenance decision technology based on the process judgment makes an expression form of a rule and designs a maintenance management scheme judgment model by analyzing the maintenance decision fact characteristics and the judgment rule, and completes the intelligent maintenance decision method based on the product fact state.
First, a set of typical fact features is constructed.
The maintenance management strategy is formulated by analyzing the characteristics of facts, constructing a fact characteristic set and forming a strategy set according to the judgment of set product state information and decision information.
Each maintenance strategy generation is a process from a root node (factual characteristic) → a leaf node (maintenance strategy) of a decision tree, meanwhile, the root node is a factual state of a product, and the decision judgment information is a path for realizing connection between the root node and the leaf node, so that the maintenance strategy generation process needs to construct a set of factual characteristics such as product state information, decision judgment information and the like related to a system. The way of constructing the feature set of the product can be obtained from the extraction of product design parameters and design features, and also from expert experience.
And analyzing the influence factors of the maintenance strategy in the maintenance process of the typical product to obtain a typical fact characteristic set of the system. Typical fact characteristics can be classified into three types, namely static information, dynamic information and decision judgment information according to characteristic types, and the specific types are as follows:
(1) static information
The static information includes the composition of the system, functional backups, task status, detection conditions and maintenance requirements. Wherein:
the content of the composition comprises: self-contained-system-device, device;
the content of the function backup comprises: redundant accessories, similar functions/replaceable parts, no backup;
the content of the task state comprises: the combat readiness duty state, the combat state, the examination training state and the marching state;
the content of the detection condition includes: continuous detection, timing detection and random detection;
the content of the maintenance requirement comprises: field maintenance, premise maintenance, base maintenance.
(2) Dynamic information
The dynamic information includes handling events, fault effects, degradation states, timing conditions, and guaranteed resources. Wherein:
the content of the handling event includes: normal, fault event, degraded event, timed event. The degradation event comprises transient processes such as impact and the like and gradual change processes such as random and the like;
the contents of the fault influence include: the current task is influenced, the next stage task is influenced, and no influence is caused;
the content of the degraded state includes: the early warning limit is not reached, the early warning limit is reached, and the safety limit is reached;
the contents of the timing case include: the cutoff time is not reached, the cutoff time will be reached;
the contents of the secured resources include: maintenance spare part restraint, maintenance manpower restraint, maintenance tool restraint.
(3) Decision making judgment information
The decision judgment information contains decision targets and decision influences. Wherein:
the content of the decision target includes: the task influence is minimum, the maintenance downtime is minimum, the maintenance cost is minimum, and the system availability is maximum;
the contents of the repair impact include: the task impact on equipment, the daily work impact on the organization, and the management impact. The task influence on the equipment comprises task termination, task degradation and no influence; the daily work influence on the mechanism includes that only routine work (completed within daily planned work time) is needed, a small amount of extra work (slightly exceeding routine work time and maintenance man-hour) is added, and a large amount of extra work (greatly exceeding routine work time and maintenance man-hour) is added; management impacts include economic impacts, logistical impacts, repair status impacts.
Then, a maintenance decision rule base is established
The maintenance management method of the system adopts a mode of 'condition-conclusion', and the concrete form is as follows:
if: (rule name) is (rule description)
Then: conclusion (output operation prompt or enter next rule)
And obtaining a typical rule base according to the typical fact feature set in the step one, wherein the rule base records rule names, rule descriptions and corresponding rule descriptions.
The rule name includes: object composition, function backup, task state, detection conditions, maintenance requirements, handling events, fault impact, degradation state, timing conditions, guaranteed resources, decision objectives, and maintenance impact. The rule descriptions and rule descriptions are as follows:
the object composition means judging object structure composition, including a self-contained level, a subsystem/system level and an equipment level;
the function backup means judging whether function backup exists or not, wherein the function backup comprises a redundant component, a non-redundant component, a similar function/replaceable component and a non-similar function/replaceable component;
the task state refers to judging whether the current task state is a standby duty state, a combat state, a check training state or a marching state, and comprises a standby duty state, a non-standby duty state, a combat state, a check training state, a non-check training state, a marching state and a non-marching state;
the detection condition is to judge whether the detection condition is continuous, timing or random, and comprises continuous detection, timing detection and random detection;
the maintenance requirement refers to the judgment that the maintenance requirement is field maintenance, station maintenance or base maintenance, including the requirements of field maintenance, station maintenance and base maintenance;
the handling event refers to judging whether the type of the handling event is normal, fault, degradation or timing event, including normal event, fault event, degradation event and timing event;
the fault influence means that whether a fault event influences the current task or the next-stage task is judged, wherein the fault event influences the current task, does not influence the current task, influences the next-stage task and does not influence the next-stage task;
the degradation state refers to judging whether the degradation event reaches an early warning limit or a safety limit, including reaching the early warning limit, not reaching the early warning limit, reaching the safety limit, and not reaching the safety limit;
the timing condition refers to judging whether the timing event reaches the cut-off time, including reaching the cut-off time and not reaching the cut-off time;
the guarantee resource means that whether the guarantee resource meets the maintenance requirements is judged, and the guarantee resource comprises spare parts, no spare parts, maintenance personnel, no maintenance personnel, maintenance tools and no maintenance tools;
the decision-making targets refer to four targets of maintenance decision-making, and comprise the minimum task influence, the shortest repair downtime, the lowest maintenance cost and the maximum system availability;
the maintenance influence refers to the influence of judgment on the maintenance on the task, daily work and management work. The effects on different factors can be classified as maintenance effects (tasks), maintenance effects (work), maintenance effects (management). Wherein the description of the maintenance impact (task) comprises task termination, task degradation, no impact; the description of the maintenance influence (work) includes that only routine work (completed within daily planned work time) is needed, the routine work time & maintenance man-hour is slightly exceeded, and the routine work time & maintenance man-hour is greatly exceeded; the description of the maintenance impact (management) includes economic impact, logistical impact (resource provisioning), repair status impact.
Then, establishing a maintenance decision conclusion library
And obtaining part of typical conclusions of the maintenance decision according to the actual conditions of the system and the maintenance experience of the product, and establishing a decision conclusion library, wherein the names and descriptions of the conclusions are recorded in the conclusion library.
The conclusion names include: the state is maintained, and the state is not maintained. Each conclusion is described below:
the state keeping comprises state keeping and recording equipment states, starting degradation measures, starting backup measures, keeping to the next maintenance plan for minimum maintenance, keeping to the next maintenance plan for complete maintenance, and keeping to the next maintenance plan for replacement;
the state not maintained includes replacement, minimum maintenance, complete maintenance, first-aid repair, group maintenance.
Based on the principle, the invention provides a maintenance decision method based on product factual state, which is applied to single-fault-event maintenance management and multi-fault-event maintenance management.
Example 1
As shown in FIG. 1, the present invention provides a product fact status based maintenance decision method applied to single fault event maintenance management.
The single fault event maintenance management rule first considers the current equipment status (i.e., whether the value of health has reached a danger limit or a maintenance limit), which is a prerequisite for implementing maintenance management. And then, judging the task state of the system, and when the system is in an operational state, not developing maintenance operation activities requiring site maintenance or base maintenance. In addition, whether backup exists or not, whether degraded use can be realized or not, whether maintenance technical capacity exists or not, whether remote guidance can be realized or not, whether resources are guaranteed or not and the like are mainly considered, and a final decision result is obtained according to a judgment process: state retention and recording of equipment state, immediate repair, maintenance at the next scheduled maintenance time, full maintenance, minimum maintenance, replacement, initiation of backup measures, initiation of degradation measures.
The single fault event repair management flow is shown in fig. 1.
After entering the maintenance judgment process:
judging the equipment state at the current time (t): when the equipment state is 'healthy and sub-healthy', outputting 'state keeping (equipment state recording)', and finishing the maintenance judgment process; when the equipment state is 'dangerous and fault', a subsequent judgment process is carried out, and the task state of the system at the current moment is judged to be a combat state or a non-combat state (combat readiness on duty, inspection training, marching and the like). The task state of the system at the current moment influences the maintenance decision output of the system.
When the task state of the system at the current moment (t) is a combat state, whether the fault affects the current task of the system and whether the fault affects the next task of the system are sequentially judged: if the data is 'no', outputting 'state keeping (recording equipment state)', and finishing the maintenance judgment process; and when the result is yes, judging whether backup exists or not: if yes, outputting 'starting backup measures', and finishing the maintenance judgment process; and when the result is 'no', judging whether the degradation is allowed: if yes, outputting 'starting degradation measures', and finishing the maintenance judgment process; if not, judging whether the maintenance technology capability exists or not and whether the remote technology guidance exists or not in sequence: if the data is 'no', outputting 'state keeping (recording equipment state)', and finishing the maintenance judgment process; when the result is yes, judging whether the guaranteed resources are guaranteed or not and whether the existing resources can be used for replacing the resources or not in sequence, and if not, outputting state maintenance (recording equipment state), and finishing the maintenance judging process; and when the result is yes, outputting 'first-aid repair', and finishing the maintenance judgment process.
When the task state of the system at the current moment (t) is a non-combat state (combat readiness duty, inspection training, march and the like), whether the fault affects the current task of the system and whether the fault affects the next task of the system are sequentially judged: if the current time is 'no', outputting 'state keeping (recording equipment state)', calculating maintenance planning time Delta T, outputting 'maintenance at the moment of (T + DeltaT'), and finishing the maintenance judgment process; and when the result is yes, judging whether backup exists or not: if yes, outputting 'starting backup measures', and finishing the maintenance judgment process; and when the result is 'no', judging whether the degradation is allowed: if yes, outputting 'starting degradation measures', and finishing the maintenance judgment process; if not, judging whether the maintenance technology capability exists or not and whether the remote technology guidance exists or not in sequence: if the current time is 'no', outputting 'state keeping (recording equipment state)', calculating maintenance planning time Delta T, outputting 'maintenance at the moment of (T + DeltaT'), and finishing the maintenance judgment process; when the result is yes, judging whether the guaranteed resources are guaranteed or not and whether the existing resources can be used for replacing the resources or not in sequence, and if not, outputting the state maintenance (recording equipment state), calculating the maintenance planning time delta T, outputting the maintenance at the (T plus delta T) moment, and finishing the maintenance judging process; and when the result is yes, performing decision scheme evaluation, outputting complete maintenance, minimum maintenance or replacement, and ending the maintenance judgment process.
Example 2
As shown in FIG. 2, the present invention provides a product fact status based maintenance decision method applied to multi-fault event maintenance management.
Because the failure of a subsystem in a complex system does not necessarily lead to the failure of the whole system, the system can still complete the task. In the multi-event maintenance, reasonable group maintenance is performed to save maintenance time, reduce downtime and save cost, and the maintenance management method in the fourth step is not completely applicable.
The multi-fault event maintenance management of the system considers the task state of the system at the task decision time, if the system is in the combat state, the decision result is only repaired or not repaired, and if the system is in the combat readiness duty, the inspection training and the marching state, the decision result can be considered to be maintained in groups at the next scheduled maintenance time. The final decision result of the multiple fault events comprises: state maintenance and recording equipment state, immediate emergency repair, immediate gang repair, maintenance at the next scheduled maintenance time, full maintenance, minimum maintenance, replacement, gang maintenance, enabling backup measures, enabling degradation measures.
The multiple fault event repair management flow is shown in fig. 2.
After entering the maintenance judgment process:
judging the equipment state at the current time (t): when the equipment state is 'healthy and sub-healthy', outputting 'state keeping (equipment state recording)', and finishing the maintenance judgment process; when the equipment state is 'dangerous and fault', determining a subsystem to which the equipment dangerous/fault time belongs, sequencing all dangerous/fault events according to the importance degree, entering a subsequent judgment process, and judging whether the task state of the system at the current moment is a combat state or a non-combat state (combat readiness on duty, inspection training, marching and the like). The task state of the system at the current moment influences the maintenance decision output of the system.
When the task state of the system at the current moment (t) is a combat state, whether a single fault affects the current task of the system and whether the single fault affects the next task of the system are sequentially judged: if the data is 'no', outputting 'state keeping (recording equipment state)', and finishing the maintenance judgment process; and when the result is yes, judging whether backup exists or not: if yes, outputting 'starting backup measures', and finishing the maintenance judgment process; and when the result is 'no', judging whether the degradation is allowed: if yes, outputting 'starting degradation measures', and finishing the maintenance judgment process; if not, judging whether the maintenance technology capability exists or not and whether the remote technology guidance exists or not in sequence: if the data is 'no', outputting 'state keeping (recording equipment state)', and finishing the maintenance judgment process; when the result is yes, judging whether the guaranteed resources are guaranteed or not and whether the existing resources can be used for replacing the resources or not in sequence, and if not, outputting state maintenance (recording equipment state), and finishing the maintenance judging process; when the result is yes, judging whether the subsystem to which the fault event belongs has the event to be maintained or not and whether other subsystems have the event to be maintained within the maintenance radius or not in sequence: if the current fault is not detected, outputting 'first-aid repair of the current fault', and finishing the maintenance judgment process; and when the result is yes, outputting 'group maintenance immediately', and finishing the maintenance judgment process.
When the task state of the system at the current moment (t) is a non-combat state (combat readiness duty, inspection training, march and the like), whether the fault affects the current task of the system and whether the fault affects the next task of the system are sequentially judged: if the current time is 'no', outputting 'state keeping (recording equipment state)', calculating maintenance planning time Delta T, outputting 'maintenance at the moment of (T + DeltaT'), and finishing the maintenance judgment process; and when the result is yes, judging whether backup exists or not: if yes, outputting 'starting backup measures', and finishing the maintenance judgment process; and when the result is 'no', judging whether the degradation is allowed: if yes, outputting 'starting degradation measures', and finishing the maintenance judgment process; if not, judging whether the maintenance technology capability exists or not and whether the remote technology guidance exists or not in sequence: if the current time is 'no', outputting 'state keeping (recording equipment state)', calculating maintenance planning time Delta T, outputting 'maintenance at the moment of (T + DeltaT'), and finishing the maintenance judgment process; when the result is yes, judging whether the guaranteed resources are guaranteed or not and whether the existing resources can be used for replacing the resources or not in sequence, and if not, outputting the state maintenance (recording equipment state), calculating the maintenance planning time delta T, outputting the maintenance at the (T plus delta T) moment, and finishing the maintenance judging process; when the result is yes, judging whether the subsystem to which the fault event belongs has the event to be maintained or not and whether other subsystems have the event to be maintained within the maintenance radius or not in sequence: if the current fault is not the minimum fault, performing decision scheme evaluation, outputting 'complete maintenance current fault', 'minimum maintenance current fault' or 'replacement', and finishing the maintenance judgment process; and when the result is yes, performing decision scheme evaluation, outputting 'group maintenance immediately', and finishing the maintenance judgment process.
The invention provides a maintenance decision generation method combining static information and dynamic information of a product, which realizes active targeted maintenance of the product, further realizes design of an auxiliary logistics support system, improves efficiency and reduces maintenance cost, and has the following advantages:
in the research process of a guarantee design module, an effective maintenance decision method is provided based on the current factual state of a product;
according to the basic fact of the existing typical complex system analysis, the obtained feature set better covers the general characteristics, and the method is convenient for users to apply to different complex systems;
the rule base and the conclusion base of the maintenance management method are both from basic fact characteristic experience and are closer to the actual use environment of a user.
Maintenance management is divided into single events and multiple events according to different fault conditions, so that the single fault and the multiple faults are managed in a more targeted manner at the same time, and a reasonable maintenance decision is generated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A maintenance decision method based on product factual status, the method comprising the steps of:
acquiring static information and dynamic information of a product;
judging whether the current state of the product is in a dangerous or fault state or not according to the static information and the dynamic information to obtain a first judgment result;
if the first judgment result shows that the task state is the battle state, acquiring a current fault event of the product, judging whether the task state executed by the product at the current moment is in the battle state according to the static information and the dynamic information, and acquiring a second judgment result;
if the second judgment result shows yes, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a third judgment result;
if the third judgment result shows that the current fault event is the first fault event, immediately repairing the current fault event according to the static information and the dynamic information of the product based on the first decision scheme;
if the second judgment result shows no, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a fourth judgment result;
if the fourth judgment result shows that the product is a fault, maintaining the current fault event according to the static information and the dynamic information of the product based on a second decision scheme;
and if the fourth judgment result shows that the product is not the current total maintenance plan, determining the maintenance plan time of the product according to the current total maintenance plan, and maintaining the current fault event when the maintenance plan time is up.
2. The maintenance decision method based on the product factual state according to claim 1, wherein the first decision scheme is used for performing immediate emergency repair on the current failure event according to the static information and the dynamic information of the product, and specifically comprises:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the first-aid repair is successful, a measure of starting a backup product is adopted for first-aid repair;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is in a state of being repaired, performing first-aid repair on the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
and if the ninth judgment result shows that the fault event is yes or the tenth judgment result shows that the fault event is yes, immediately assigning maintenance personnel, and performing emergency repair on the current fault event by using guarantee resources or alternative resources in the current maintenance resources.
3. The maintenance decision method based on the product factual state according to claim 1, wherein the maintenance of the current failure event according to the static information and the dynamic information of the product based on the second decision scheme specifically comprises:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the backup product is started, adopting a measure of starting the backup product to maintain;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is the normal product, maintaining the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
if the ninth judgment result shows that the maintenance personnel can be assigned, the guarantee resources or the alternative resources in the current maintenance resources can be used for making a maintenance scheme, and the optimal maintenance scheme is selected for maintenance;
and if the eighth judgment result shows that the product is not the current maintenance plan, determining the maintenance plan time of the product according to the current overall maintenance plan, and maintaining the product when the maintenance plan time is reached.
4. The maintenance decision method based on the product factual status as claimed in claim 1, wherein the static information includes product composition information, function backup information, task status information, detection condition information and maintenance requirement information; the dynamic information includes handling event information, fault impact information, degradation state information, timing condition information, and guaranteed resource information.
5. A maintenance decision method based on product factual status, the method comprising the steps of:
acquiring static information and dynamic information of a product;
judging whether the current state of the product is in a dangerous or fault state or not according to the static information and the dynamic information to obtain a first judgment result;
if the first judgment result shows that the system is the same as the system, all fault events of the product and the system to which each fault event belongs are obtained, and all fault events are sequenced according to the importance of the system to which the fault events belong;
and sequentially taking all the fault events as current fault events based on the sequencing result, and executing the following steps:
judging whether the task state executed by the product at the current moment is in an operational state or not according to the static information and the dynamic information to obtain a second judgment result;
if the second judgment result shows yes, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a third judgment result;
if the third judgment result shows that the failure event is detected to be a positive failure event, performing group emergency repair or individual emergency repair on the current failure event according to the static information and the dynamic information of the product based on the first decision scheme;
if the second judgment result shows no, judging whether the current fault event of the product affects the current task or the next task executed by the product according to the static information and the dynamic information to obtain a fourth judgment result;
if the fourth judgment result shows that the fault event is detected to be a fault, performing group maintenance or individual maintenance on the current fault event according to the static information and the dynamic information of the product based on a second decision scheme;
and if the fourth judgment result shows that the product is not the current total maintenance plan, determining the maintenance plan time of the product according to the current total maintenance plan, and maintaining the current fault event when the maintenance plan time is up.
6. The maintenance decision method based on the product factual state according to claim 5, wherein the first decision scheme is based on group emergency repair or individual emergency repair of the current failure event according to the static information and dynamic information of the product, and specifically comprises:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the first-aid repair is successful, a measure of starting a backup product is adopted for first-aid repair;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is in a state of being repaired, performing first-aid repair on the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
if the ninth judgment result shows yes or the tenth judgment result shows yes, judging whether a system to which the current fault event belongs has a to-be-maintained event or whether other systems have the to-be-maintained event within a maintenance radius taking the current fault event as a circle center, and obtaining an eleventh judgment result;
if the eleventh judgment result shows that the current fault event and the events to be maintained in the system to which the current fault event belongs are subjected to group emergency repair, or the current fault event and the events to be maintained in the maintenance radius which takes the current fault event as the circle center in other systems are subjected to group emergency repair;
and if the eleventh judgment result shows that the fault event is not detected, immediately assigning maintenance personnel, and performing emergency repair on the current fault event by using guarantee resources or alternative resources in the current maintenance resources.
7. The product factual state-based maintenance decision method according to claim 5, characterized in that based on the second decision scheme, group maintenance or individual maintenance is performed on the current failure event according to the static information and the dynamic information of the product, specifically comprising:
judging whether a backup product exists or not based on the static information to obtain a fifth judgment result;
if the fifth judgment result shows that the backup product is started, adopting a measure of starting the backup product to maintain;
if the fifth judgment result shows no, judging whether the product can be subjected to degradation processing based on the static information to obtain a sixth judgment result;
if the sixth judgment result shows that the product is the normal product, maintaining the product in a degradation processing mode;
if the sixth judgment result shows that the maintenance personnel can not be assigned, judging whether the currently assignable maintenance personnel have the maintenance technical capability or not based on the dynamic information, and obtaining a seventh judgment result;
if the seventh judgment result shows no, judging whether a remote technical guidance condition exists or not, and obtaining an eighth judgment result;
if the seventh judgment result shows yes or the eighth judgment result shows yes, judging whether the current maintenance resources have guaranteed resources, and obtaining a ninth judgment result;
if the ninth judgment result is negative, judging whether the current maintenance resources have replaceable resources, and obtaining a tenth judgment result;
if the ninth judgment result shows that the maintenance personnel can be assigned, the guarantee resources or the alternative resources in the current maintenance resources can be used for making a maintenance scheme, and the optimal maintenance scheme is selected for maintenance;
if the eighth judgment result shows that the system is not maintained or the other systems have the event to be maintained within the maintenance radius taking the current fault event as the circle center, judging whether the system to which the current fault event belongs has the event to be maintained or not, and obtaining a twelfth judgment result;
if the twelfth judgment result shows that the current fault event and the events to be maintained in the system to which the current fault event belongs are grouped, or the current fault event and the events to be maintained in the maintenance radius which takes the current fault event as the circle center in other systems are grouped, an optimal grouped maintenance scheme is formulated and selected, and grouped maintenance is carried out;
if the twelfth judgment result shows that the maintenance personnel can not be assigned, an independent maintenance scheme is made according to the currently assignable maintenance personnel and the guarantee resources or the alternative resources in the current maintenance resources, and the optimal independent maintenance scheme is selected for independent maintenance;
and if the eighth judgment result shows that the product is not the current maintenance plan, determining the maintenance plan time of the product according to the current overall maintenance plan, and maintaining the product when the maintenance plan time is reached.
8. The repair decision method based on the factual status of a product according to claim 5, wherein the static information includes product composition information, function backup information, task status information, detection condition information, and repair requirement information; the dynamic information includes handling event information, fault impact information, degradation state information, timing condition information, and guaranteed resource information.
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