CN105955243B - A kind of aircraft diagnosis and repair method and its device based on fault case - Google Patents
A kind of aircraft diagnosis and repair method and its device based on fault case Download PDFInfo
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- CN105955243B CN105955243B CN201610403911.8A CN201610403911A CN105955243B CN 105955243 B CN105955243 B CN 105955243B CN 201610403911 A CN201610403911 A CN 201610403911A CN 105955243 B CN105955243 B CN 105955243B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24048—Remote test, monitoring, diagnostic
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Abstract
The aircraft diagnosis and repair method and device based on fault case that present disclose provides a kind of, this method includes step：The history maintenance record of airplane fault is implemented to arrange, to generate Maintenance plan；Obtain the fault signature of airplane fault；All maintenance modes for solving the fault signature are found out in the Maintenance plan based on the fault signature；Calculate the troubleshooting success rate of the maintenance mode；The maintenance mode is shown based on the troubleshooting success rate.The present invention improves the maintenance efficiency of aircraft, reduces the operation cost of aircraft maintenance.
Description
Technical field
The disclosure relates generally to the diagnosis and repair field of airplane fault.Particularly, it is related to a kind of winged based on fault case
Machine diagnosis and repair method and its device.
Background technology
In aircraft maintenance, identical phenomenon of the failure may be due to different caused by, for identical therefore
Barrier phenomenon may need to implement different maintenance process, and this just teacher of the needing repairing by abundant experience to examine failure implementation
It is disconnected, so that it is determined which maintenance process should be implemented to solve the phenomenon of the failure.
However requirement of the above-mentioned maintenance mode to repair technician is higher (especially in terms of experience).Airline's troubleshooting at present
Still to consult based on repair class handbook, and consult handbook while, will also consult a large amount of engineering technical document.For example, repair
Teacher is based on phenomenon of the failure, and various troubleshooting modes are attempted successively by the instruction of operation manuals or engineering technical document, until the event
Barrier excludes.However which had not only taken but also had needed very high maintenance cost.
With the continuous development of world economy, Chinese Civil Aviation will face more keen competition and challenge.Airline
Demand to cutting operating costs, improving maintenance efficiency is more urgent.Meanwhile main manufacturer needs to the event based on Maintenance Cases
Hinder diagnostic techniques and carry out more in-depth study, foundation is provided for the design improvement of aircraft.
CN 101387582A disclose a kind of fault diagnosis system and method based on PDA, and wherein PDA includes case
Maintenance unit obtains airplane fault case library by network and Answer extracting unit and exports to case storage unit, case
Storage unit is responsible for storage from the central database with the airplane fault case library transplanted on Answer extracting unit, and exports extremely
Information preprocessing unit；Information preprocessing unit pre-processes phenomenon of the failure input by user, i.e., according to input by user
Phenomenon of the failure matches a source case and exports to inference machine, and inference machine obtains several target cases by reasoning by cases,
A most like case is extracted by Answer extracting unit as answer to export to user by information output unit.However,
In this scenario, Answer extracting unit only extracts a most like case from target case and exports to user, Yong Huwu
Method understands the success rate of all maintenance modes and various maintenance modes that solve similar airplane fault, to be difficult to according to warp
It tests and judges, the answer that PDA can only be selected to provide.
Therefore be badly in need of it is a kind of efficiently and economic scheme implements the diagnosis and repair of airplane fault.
Invention content
For this purpose, the first aspect of the disclosure provides a kind of aircraft diagnosis and repair method based on fault case, wherein wrapping
Include step：The history maintenance record of airplane fault is implemented to arrange, to generate Maintenance plan；The failure for obtaining airplane fault is special
Sign；All maintenance modes for solving the fault signature are found out in the Maintenance plan based on the fault signature；Meter
Calculate the troubleshooting success rate of the maintenance mode；The maintenance mode is shown based on the troubleshooting success rate.
In one embodiment, the history maintenance record to airplane fault implements analysis, to generate Maintenance plan
The step of include：Obtain the history maintenance record of airplane fault；The history maintenance record is analyzed, it is valueless to reject
Troubleshooting record；By scheduled data structure, the history maintenance record is rebuild；The dimension is generated based on scheduled format
Repair database.
In one embodiment, the Maintenance plan includes：Case essential information, failure symptom, maintenance mode, case
Example classification.
In one embodiment, the fault signature includes following at least one information：Type, ATA chapters and sections, failure generation
The keyword of code, failure-description.
In one embodiment, described to be wrapped by described the step of showing the maintenance mode based on the troubleshooting success rate
It includes：Maintenance mode is shown from high to low by troubleshooting success rate.
The second aspect of the disclosure provides a kind of aircraft diagnosis and repair device based on fault case, including：It builds
Library unit is used to implement to arrange to the history maintenance record of airplane fault, to generate Maintenance plan；Feature acquiring unit,
It is used to obtain the fault signature of airplane fault；Searching unit is used for based on the fault signature in the Maintenance plan
In find out all maintenance modes for solving the fault signature；Computing unit is used to calculate the troubleshooting of the maintenance mode
Success rate；Output unit is used to show the maintenance mode based on the troubleshooting success rate.
In one embodiment, the library unit of building includes：Acquisition module is used to obtain the history repair of airplane fault
Record；Removing module is used to analyze the history maintenance record, is recorded with rejecting unworthy troubleshooting；Build mould
Block is used to, by scheduled data structure, rebuild the history maintenance record；Generation module is used for based on scheduled
Format generates the Maintenance plan.
In one embodiment, the Maintenance plan includes：Case essential information, failure symptom, maintenance mode, case
Example classification.
In one embodiment, the fault signature includes following at least one information：Type, ATA chapters and sections, failure generation
The keyword of code, failure-description.
In one embodiment, the output unit shows maintenance mode from high to low by troubleshooting success rate.
Following advantageous effect is realized through the invention：
(1) efficiency of airplane fault diagnosis is improved：Airline's troubleshooting at present and is consulted with consulting based on repair class handbook
A large amount of engineering technical document is also consulted while handbook, this gives brings larger difficulty according to the troubleshooting of handbook, the present invention
It is combined, applies by based on Maintenance Cases, taking into account the historical statistical data of system, and with other method for diagnosing faults
Retrieval and self study tool realize high-grade intelligent diagnosis, and can effectively solving traditional handbook troubleshooting and mode, time-consuming, workload
Big and fault location inaccuracy situation, airline Maintenance Engineer can quick positioning failure reason, raising troubleshooting efficiency.
(2) aircraft maintenance cost can be effectively reduced：It will save dimension to provide repair level and troubleshooting efficiency unquestionably
Accomplish this effective way.The present invention can quickly and accurately find fault solution by case correlation technology, to
Lower troubleshooting efficiency under traditional troubleshooting mode is improved, achievees the purpose that be substantially reduced aircraft maintenance and operation cost.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the disclosure is other
Feature, objects and advantages will become more apparent：
Fig. 1 shows the aircraft diagnosis and repair method flow based on fault case of one embodiment according to the disclosure
Figure；
Fig. 2 shows the method flow diagrams according to the generation Maintenance plan of one embodiment of the disclosure；
Fig. 3 shows the data structure of the maintenance record of one embodiment according to the disclosure；And
Fig. 4 shows the module of the aircraft diagnosis and repair device based on fault case of one embodiment according to the disclosure
Figure.
Specific implementation mode
It, will be with reference to the appended attached drawing for constituting a disclosure part in the specific descriptions of following preferred embodiment.Institute
The specific embodiment that can realize the disclosure has been illustrated by way of example in attached attached drawing.Exemplary embodiment is not intended to
Limit is according to all embodiments of the disclosure.It is appreciated that under the premise of without departing from the scope of the present disclosure, other can be utilized
Embodiment can also carry out structural or logicality modification.Therefore, it is below specific descriptions and it is unrestricted, and this
Scope of disclosure is defined by the claims appended hereto.In addition, although the step of method is described in specification in a particular order
Suddenly, but this, which does not require that or implies, to execute these operations according to the particular order, or has to carry out whole institutes
The operation shown could realize desired as a result, on the contrary, the step of describing, which can change, executes sequence.Additionally or alternatively, may be used
To omit certain steps, multiple steps are merged into a step and are executed, and/or a step is decomposed into multiple steps and is held
Row.
The present invention inventive concept be：By real to history maintenance record or Maintenance Cases (hereafter referred to collectively as maintenance record)
Analysis is applied, to sum up for the success rate of maintenance mode used in various phenomena of the failure in practical maintenance process, and
Maintenance mode is selected according to the sequence of success rate from high to low, to improve the successful possibility of repair, improves maintenance efficiency,
Save maintenance cost.Fig. 1 shows a kind of aircraft diagnosis and repair method flow diagram based on fault case according to the disclosure, with
Under this programme will be described in detail in conjunction with Fig. 1.
In step s 102, the history maintenance record of airplane fault is implemented to arrange, to generate Maintenance plan, i.e.,：
On the basis of analyzing civil aircraft history maintenance record, carry out case screening, reject and merge work, and for typical repair
Case, which is carried out, analyses in depth research, finally indicates specification according to the record formulated, and is formed and diagnoses and repair for airplane fault
Using the maintenance record of reference, in conjunction with schematic diagram shown in Fig. 2, flow includes：
First, in step S102-1, the history maintenance record of airplane fault is obtained or, i.e.：From history maintenance record
Export each maintenance record.Wherein the maintenance record can be recorded in the file of arbitrary format.
Secondly, in step S102-2, the history maintenance record is analyzed, is remembered with rejecting unworthy troubleshooting
Record.Include some maintenance records without reference value in maintenance record, for example, reading lamp is replaced because reading lamp damages, this
A little repairs belong to simple repair, due to its maintenance mode be to determine therefore there is no reference values.
Again, in step S102-3, by scheduled expression structure, the history maintenance record is rebuild, wherein wrapping
It includes and maintenance record is grouped again, merges, removes redundancy etc..
Maintenance record is the knowledge support of fault diagnosis system of civil aircraft, for the failure logging of airliner,
The information that maintenance record includes is very more, and is also contemplated by Fault Isolation Manual, Fault Reporting Manual, servicing manual, system
Illustrate the information such as handbook and wiring chart handbook.With the change of aircraft utilization state, many maintenance record/cases can all have phase
The adjustment answered, update, the maintenance of this record that just needs repairing are more flexible, in the present invention, each item dimension in Maintenance plan
The framework for repairing record uses the case representation structure of dispersion tissue.
For ease of description, maintenance record is claimed below to become case.One complete case is mainly believed by case substantially
The relative recording of breath, fault signature and troubleshooting mode constitutes jointly.Therefore each after arrangement in the Maintenance plan of the present invention
Maintenance record mainly contains：Case essential information, failure symptom, maintenance mode and case are classified four category informations.Join below
See that Fig. 3 pairs of four category informations illustrate.
1. case is classified
For the ease of implementing to inquire to each case, case can be implemented to classify in Maintenance plan, case rating information
The middle foundation for having recorded case classification.
In one embodiment, the failure of aircraft system is implemented to be classified according to system.For modern aircraft system,
Contain more than 30 a level-one subsystems such as air-conditioning, flight control, engine, undercarriage, fuel oil, lubricating oil, each level-one subsystem
The two level subsystem for also having lower level time below, the failure of aircraft system is managed according to these system structures, on the one hand may be used
On the other hand it is also to meet in engineering maintenance personnel's routine work to improve recall precision using grading search technology in retrieval
For the cognition custom of airplane fault.
In another embodiment, the failure of aircraft system is implemented to be classified according to severity.
2. case essential information
Case essential information is the standardization describing framework of fault case.Fault case standardization shown in the present invention is retouched
It includes following several category informations to state frame mainly：
Case No.：All numbers are write all referring to " aeronautical product technical data writes specification " in this system.
Task number：Task number represents number of the failure in Fault Isolation Manual, and Fault Isolation Manual is aircraft supply
Quotient is supplied to the important references handbook of the rapidly removing faults of airline and aircraft maintenance company, and most course line failure is all
It can inquire to obtain by the handbook.
Error code：It is corresponding error code in Fault Isolation Manual, main function is to retouch with each failure in handbook
It states corresponding.Each case may have multiple failure-descriptions, therefore corresponding multiple error code.
Repair message：Repair message is mainly the related instruction information obtained after being tested by BITE, can help to search
It has various failures.Include mainly special signal lamp, digital code and one group of English phrase comprising or not comprising digital code.
Failure cause：Cause the description of certain failure possible cause.Some specific aircraft system faults, the reason corresponded to
May have multiple.
Related data：Related data refers to other related datas applied to this fault case, including system diagram handbook
SSM (System Schematics Manual) or wiring chart handbook WDM (Wiring Diagram Manual).
Diagnostic result：The final failure reason analysis of the case, the trouble unit being diagnosed to be.
The analysis of causes：The characteristics of this field essential record maintenance personal is according to this case makes a concrete analysis of generation, the hair of case
Exhibition feature information, convenient for in the future using case come carry out diagnosis more useful informations are provided.
Case confidence level：Fuzzy mathematics knowledge is borrowed herein may believe that degree define case.
Case frequency of use：Frequency of use represents the number that case is used, and a case is often used, by the use of case
Frequency adds 1, and common case and non-common case can be thus distinguished by using frequency.
CROSS REFERENCE：The description of main other certain CROSS REFERENCEs that expert's case is provided, it is mutual between case to express
Relevance.
3. failure symptom
Failure symptom number：It constitutes similar with Case No..
Failure symptom describes：The main description information stored to phenomenon of the failure, engineering maintenance personnel pass through to flying quality
Analysis or group exchange obtain to the description information of failure, verbal description may be used, formula can also be used to express.
Sign variable type：Including two types, certainty numerical value sign and uncertainty numerical value sign.
Data unit：The unit of data.
Data value：For certainty numerical value sign, there may be specific parameter value that can express the details of the sign.
Fuzzy relation value：For uncertainty numerical value sign, need to describe failure symptom with fuzzy language.Mould is used herein
Fuzzy logic logic of language obtains the language true value of language amount in expertise.
Confidence level：The confidence level of failure symptom, as the confidence level of case defines.
Weight：Weight i.e. weights represent influence degree of the appearance for entire case of sign.1.0 represent case
It is determined by it, 0.0 to represent this sign completely not related with case.For example, for the failure of oil leak, oil leakage alarm indicator light
Weight is 1.
4. maintenance mode/step
Repair step number：It constitutes similar with failure symptom.
Repair description：One case may correspond to multiple repair steps.The field, which is mainly expressed, each makees content.
Task number：The project in the servicing manual corresponding to the step in maintenance process.
Explanation：To some explanations of the repair step.
Finally, in step S102-4, the maintenance record after last arrange is generated by scheduled format for lookup
Maintenance plan.
In step S104, the fault signature of airplane fault is obtained, wherein the fault signature can be above-mentioned data knot
One or more of failure symptom information in structure.
Specifically, when maintenance personal find aircraft tool in the event of failure, maintenance personal obtain airplane fault fault signature with
For searching corresponding maintenance mode in Maintenance plan.Wherein, the fault signature can be one in failure symptom or
Multiple information, for example, failure symptom number, failure symptom description etc..
In step s 106, the corresponding fault signature is found out in the Maintenance plan based on the fault signature
All maintenance modes and repair message.For example, for fault signature " oil leak ", maintenance mode has tri- kinds of A, B, C, then finds out
All three maintenance modes and corresponding repair message.
In step S108, the troubleshooting success rate of the various maintenance modes in all maintenance modes found out is calculated.
Specifically, after finding out all maintenance modes, the row for calculating the various maintenance modes for solving the similar failure is needed
Therefore success rate.For example, when fault signature is oil leak, may be caused by one in tri- components of a, b, c damage,
First find out in the present invention it is all solve the problems, such as this maintenance mode, and list the troubleshooting success rate of each maintenance mode.Assuming that
Oil leakage fault shares 10, wherein being led to by success troubleshooting 3 after replacement component b by success troubleshooting 5 after replacing component a
Success troubleshooting 2 after replacement component c is crossed, then the troubleshooting success rate for replacing component a is 50%, replaces the troubleshooting success rate of component b
It is 30%, the troubleshooting success rate for replacing component c is 20%.I.e.：Troubleshooting success rate=troubleshooting quantity/similar failure sum.
In step s 110, troubleshooting mode is shown from high to low by the troubleshooting success rate of each maintenance mode.For example, failure
Sign is described as oil leakage alarm, and the maintenance mode by searching for the corresponding fault signature of discovery has tri- kinds of A, B, C, the wherein row of A
Therefore the troubleshooting success rate that the troubleshooting success rate that success rate is 30%, B is 50%, C is 20%, then first shows mode B, then successively
Display mode A and mode C.
The invention also discloses a kind of aircraft diagnosis and repair device based on fault case.As shown in figure 4, the device 400
Including：Library unit 401 is built, is used to that the history maintenance record of airplane fault to be implemented to arrange, to generate Maintenance plan；Feature
Acquiring unit 402 is used to obtain the fault signature of airplane fault；Searching unit 403 is used to exist based on the fault signature
All maintenance modes for solving the fault signature are found out in the Maintenance plan；Computing unit 404 is used to calculate institute
State the troubleshooting success rate of maintenance mode；Output unit 405 is used to show the maintenance mode based on the troubleshooting success rate.
The device shown by the disclosure is illustrated below in conjunction with method flow：
In step s 102, it builds library unit 401 the history maintenance record of airplane fault is implemented to arrange, to generate repair number
According to library, i.e.,：On the basis of analyzing civil aircraft history maintenance record, carries out case screening, rejects and merge work, and needle
Typical Maintenance Cases are carried out and analyse in depth research, finally indicate specification according to the record formulated, are formed for airplane fault
The maintenance record of diagnosis and repair application reference.
Wherein, the library unit 401 of building includes：Acquisition module is used to obtain the history maintenance record of airplane fault；
Removing module is used to analyze the history maintenance record, is recorded with rejecting unworthy troubleshooting；Module is built,
For pressing scheduled data structure, the history maintenance record is rebuild；Generation module is used to give birth to based on scheduled format
At the Maintenance plan.The running for building library unit 401 is as follows：
In step S102-1, acquisition module obtains the history maintenance record of airplane fault or, i.e.：From history maintenance record
The middle each maintenance record of export.Wherein the maintenance record can be recorded in the file of arbitrary format.
In step S102-2, removing module analyzes the history maintenance record, to reject unworthy troubleshooting
Record.Include some maintenance records without reference value in maintenance record, for example, reading lamp is replaced because reading lamp damages,
These repairs belong to simple repair, due to its maintenance mode be to determine therefore there is no reference value.
In step S102-3, structure module presses scheduled expression structure, rebuilds the history maintenance record, wherein
Including being grouped again to maintenance record, merging, remove redundancy etc..
In step S102-4, generation module is generated by scheduled format the maintenance record after last arrange for searching
Maintenance plan.
In step S104, feature acquiring unit 402 obtains the fault signature of airplane fault, wherein the fault signature can
To be one or more of failure symptom information in above-mentioned data structure.
Specifically, when maintenance personal has found aircraft tool in the event of failure, feature acquiring unit 402 obtains the failure of airplane fault
Feature in Maintenance plan for searching corresponding maintenance mode.Wherein, which can be in failure symptom
One or more information, for example, failure symptom number, failure symptom description etc..
In step s 106, searching unit 403 finds out correspondence based on the fault signature in the Maintenance plan
All maintenance modes and repair message of the fault signature.For example, for fault signature " oil leak ", maintenance mode have A, B,
Tri- kinds of C, then find out all three maintenance modes and corresponding repair message.
In step S108, computing unit 404 calculates the row of the various maintenance modes in all maintenance modes found out
Therefore success rate.
Specifically, after finding out all maintenance modes, the row for calculating the various maintenance modes for solving the similar failure is needed
Therefore success rate.For example, when fault signature is oil leak, may be caused by one in tri- components of a, b, c damage,
First find out in the present invention it is all solve the problems, such as this maintenance mode, and list the troubleshooting success rate of each maintenance mode.Assuming that
Oil leakage fault shares 10, wherein being led to by success troubleshooting 3 after replacement component b by success troubleshooting 5 after replacing component a
Success troubleshooting 2 after replacement component c is crossed, then the troubleshooting success rate for replacing component a is 50%, replaces the troubleshooting success rate of component b
It is 30%, the troubleshooting success rate for replacing component c is 20%.I.e.：Troubleshooting success rate=troubleshooting quantity/similar failure sum.
In step s 110, output unit 405 shows troubleshooting side from high to low by the troubleshooting success rate of each maintenance mode
Formula.For example, failure symptom is described as oil leakage alarm, the maintenance mode by searching for the corresponding fault signature of discovery has A, B, C tri-
Kind, the troubleshooting success rate that the troubleshooting success rate that the troubleshooting success rate of wherein A is 30%, B is 50%, C is 20%, then output unit
405 first show mode B, then display mode A and mode C successively.
Although the exemplary device 400 is illustrated in Fig. 4, one or more units that Fig. 4 illustrates can
To be merged, detach, rearrange, omit, remove and/or be implemented in any way.Further, exemplary each unit
And module can be realized by any combination of hardware, software, firmware and/or hardware, software and/or firmware.More generally, show
Any one of the said units of example can be by one or more circuits, programmable processor, application-specific integrated circuit
(ASIC), programmable logic device (PLD) and/or field programmable logic device (FPLD) etc. are realized.
It is obvious to a person skilled in the art that the present disclosure is not limited to the details of above-mentioned exemplary embodiment, Er Qie
Without departing substantially from the disclosure spirit or essential attributes in the case of, can realize embodiment of the disclosure in other specific forms.
Therefore, from the point of view of anyway, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that " packet
Include " word is not excluded for other elements and step, and wording "one" be not excluded for plural number.That is stated in device claim is multiple
Element can also be realized by an element.The first, the second equal words are used to indicate names, and are not offered as any specific suitable
Sequence.
Claims (10)
1. a kind of aircraft diagnosis and repair method based on fault case, wherein history maintenance record of the method to airplane fault
Implement to arrange, to generate Maintenance plan, the method is characterized in that, further includes step：
Obtain the fault signature of airplane fault；
All maintenance modes for solving the fault signature are found out in the Maintenance plan based on the fault signature；
Calculate the troubleshooting success rate of the maintenance mode；
The maintenance mode is shown based on the troubleshooting success rate.
2. according to the method described in claim 1, the wherein described history maintenance record to airplane fault implements analysis, to generate
The step of Maintenance plan includes：
Obtain the history maintenance record of airplane fault；
The history maintenance record is analyzed, is recorded with rejecting unworthy troubleshooting；
By scheduled data structure, the history maintenance record is rebuild；
The Maintenance plan is generated based on scheduled format.
3. according to the method described in claim 1, the wherein described Maintenance plan includes：Case essential information, failure symptom,
Maintenance mode, case classification.
4. according to the method described in claim 1, the wherein described fault signature includes following at least one information：Type, ATA chapters
The keyword of section, failure code, failure-description.
5. according to the method described in claim 1, wherein described show the repair side by described based on the troubleshooting success rate
The step of formula includes：Maintenance mode is shown from high to low by troubleshooting success rate.
6. a kind of aircraft diagnosis and repair device based on fault case, wherein described device include building library unit, it is used for flying
The history maintenance record of machine failure is implemented to arrange, and to generate Maintenance plan, described device is characterized in that, further includes：
Feature acquiring unit is used to obtain the fault signature of airplane fault；
Searching unit is used to find out the solution fault signature in the Maintenance plan based on the fault signature
All maintenance modes；
Computing unit is used to calculate the troubleshooting success rate of the maintenance mode；
Output unit is used to show the maintenance mode based on the troubleshooting success rate.
7. device according to claim 6, builds library unit wherein described and include：
Acquisition module is used to obtain the history maintenance record of airplane fault；
Removing module is used to analyze the history maintenance record, is recorded with rejecting unworthy troubleshooting；
Module is built, is used to, by scheduled data structure, rebuild the history maintenance record；
Generation module is used to generate the Maintenance plan based on scheduled format.
8. device according to claim 6, wherein the Maintenance plan includes：Case essential information, failure symptom,
Maintenance mode, case classification.
9. device according to claim 6, wherein the fault signature includes following at least one information：Type, ATA chapters
The keyword of section, failure code, failure-description.
10. device according to claim 6, the output unit shows maintenance mode from high to low by troubleshooting success rate.
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| CN111159818A (en) * | 2019-12-27 | 2020-05-15 | 中国航空工业集团公司沈阳飞机设计研究所 | Airplane composite material structure outfield damage maintenance scheme pushing system and method thereof |
| CN112286931A (en) * | 2020-10-10 | 2021-01-29 | 苏州中康电力运营有限公司 | Method for checking current collection circuit breaker fault |
| CN112241162A (en) * | 2020-10-28 | 2021-01-19 | 中国商用飞机有限责任公司 | Maintenance system and maintenance method for processing airplane fault |
| CN112478194A (en) * | 2020-11-17 | 2021-03-12 | 西安飞机工业（集团）有限责任公司 | Fault diagnosis method for hydraulic retraction system of aircraft landing gear |
| CN112596494B (en) * | 2020-12-04 | 2023-02-10 | 中国航空工业集团公司成都飞机设计研究所 | Aircraft fault positioning method based on HMC code correlation analysis |
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