CN106644391B - Chain failure expert diagnostic system and diagnostic method are put in a kind of vibration of laser - Google Patents
Chain failure expert diagnostic system and diagnostic method are put in a kind of vibration of laser Download PDFInfo
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- CN106644391B CN106644391B CN201610829056.7A CN201610829056A CN106644391B CN 106644391 B CN106644391 B CN 106644391B CN 201610829056 A CN201610829056 A CN 201610829056A CN 106644391 B CN106644391 B CN 106644391B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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Abstract
The invention discloses a kind of vibrations of laser to put chain failure expert diagnostic system and diagnostic method, its diagnostic system includes that pumping light device is connected with pumping light control device, pumping light device is connected with pulse delayed signal generating device, fiber coupler is connected with high-power laser optical fiber coupler temperature monitoring device, laser power measurement device is connected with multi-path laser power real-time monitoring device, above-mentioned apparatus is by real-time Data Transmission to PC machine, fault diagnosis result is shown by PC machine, its diagnostic method, include the following steps beginning, parameter setting, initializing variable, establish fault model, establish expert knowledge library, selected diagnosis target, it begins listening for, read all parameters, target whether failure, call knowledge base, call fault model, diagnostic result, display and storage, it ceases listening for, modify expert knowledge library, stored knowledge Library, modification fault model, storage model, end, real-time of the present invention is high, stability is strong, favorable expandability and intelligence are high.
Description
Technical field
The invention belongs to a kind of artificial intelligence fault diagnosis system and diagnostic methods, and in particular to a kind of vibration of laser put chain therefore
Hinder expert diagnostic system and diagnostic method.
Background technique
In laser, control field, many equipment physical quantitys all have fault characteristic, need what real-time judge broke down to set
It is standby, and the analysis of causes can be carried out to the equipment to break down, provide maintenance opinion.In general, equipment fault is according to device parameter
State is judged, then thinks that failure has occurred in equipment when device parameter reaches the fault coverage of equipment.But it is multiple for structure
Miscellaneous laser system cannot judge whether the system failure occurs only with device characteristics.
When chain is put in laser vibration to be abnormal, need to judge that each chain has the equipment state and relevance of inner link.
Currently, the generation of chain failure is put in the general real-time diagnosis laser vibration in such a way that sequence judges had an impact equipment and relationship, but
It is, due to sequentially judging that all influence factors and device parameter real-time are low, to be only applicable to laser vibration and put chain simply and own
Device parameter can be surveyed.The laser vibration that chain forms is put for complicated being shaken by multi-stage laser and puts chain, equipment is influenced and factor is relatively more,
And has malfunction compared with high real-time requirements, laser vibration is not able to satisfy using the conventional method for judging failure and puts wanting for chain
It asks.
Summary of the invention
The present invention proposes in order to solve the problems existing in the prior art, and the purpose is to provide a kind of laser vibration, to put chain failure special
Family's diagnostic system and diagnostic method.
The technical scheme is that chain failure expert diagnostic system is put in a kind of vibration of laser, including oscillator stage laser, put
Big device, the oscillator stage laser are connected with pumping light device and fiber coupler, the amplifier and pumping light device and light
Fine coupler is connected, between oscillator stage laser, amplifier, between adjacent two amplifiers, amplifier and Laser synthesizing device it
Between, Laser synthesizing device output end is provided with laser power measurement device, and the multiple pumping light device passes through universal serial bus and pump
Pu light control device is connected, and the multiple pumping light device is connected by optical fiber with pulse delayed signal generating device, the light
Fine coupler is connected by universal serial bus with high-power laser optical fiber coupler temperature monitoring device, and the multiple laser power is surveyed
Measuring device is connected by universal serial bus with multi-path laser power real-time monitoring device, the pumping light control device, pulse daley letter
Number generator, high-power laser optical fiber coupler temperature monitoring device, multi-path laser power real-time monitoring device pass through Ethernet
Bus is connected with PC machine, and fault diagnosis result is shown by PC machine.
The pumping light control device is driven by the power supply, water cooling unit, LD that universal serial bus pumps light device to more and Q
Driving is controlled accordingly, and reads the supplemental characteristics such as corresponding power, electric current, voltage.
The pulse delayed signal generating device controls the pulse signal of more pumping light devices by optical fiber, and reads corresponding
Pulse data signal.
The high-power laser optical fiber coupler temperature monitoring device reads multiple fiber couplers by universal serial bus
Temperature parameter data.
The multi-path laser power real-time monitoring device reads multiple laser power measurement devices by universal serial bus in real time
Power data.
It include data acquisition module in the PC machine, data acquisition module examines device parameter real-time data transmission to failure
Whether disconnected module, fault diagnosis module real-time judge diagnosis target break down, and when a failure occurs it, call expert knowledge library mould
After the expertise data of block and the fault tree data of fault model management module, fault diagnosis result number is provided after diagnostic analysis
According to real-time Transmission stores fault diagnosis result data to display and memory module.
The diagnostic method of chain failure expert diagnostic system is put using a kind of above-mentioned laser vibration, comprising the following steps:
(i) start S1.
(ii) parameter setting S2
Multistage pumping light device, pulse delayed signal generating device, laser power measurement device, fiber coupler phase is set separately
Close the standard parameter range and fault parameter standard, range of parameter, parameter acquisition frequency etc..
(iii) initializing variable S3
By in step (ii) standard parameter range and fault parameter range arrived respectively with data collecting module collected
Parameter is corresponded, while is calculated accordingly collected parameter, obtain condition standard in fault coverage it
One.
(iv) fault model S4 is established
Chain composition is put according to laser vibration, the fault mode that laser analysis expert goes out establishes corresponding fault model, diagnosis system
System carries out the display of accident analysis and failure path by fault model figure.
(v) expert knowledge library S5 is established
The Heuristics that laser expert solves failure problems is established into a knowledge base, diagnostic system using this knowledge base into
The row fault diagnosis analysis of causes, provides diagnostic result.
(vi) diagnosis target S6 is selected
One final goal of selecting system carries out real-time diagnosis, analyzes the reason of this target exception.
(vii) S7 is begun listening for
According to the diagnosis target selected in (vi), starts starting diagnostic module program and diagnosed.
(viii) all parameter S8 are read
Log-on data acquisition module program, from all relevant parameter numbers being related in read failure model on detection device
According to.
(ix) target whether failure S9
By the supplemental characteristic read in step (viii), according to the parameter and standard and step of step (ii) setup parameter
(iii) whether the calculating standard in initializing variable, the selected diagnosis target of judgment step (vi) break down, break down and hold
Row step (x) does not break down and executes step (viii).
(x) knowledge base S10 is called
The knowledge base of diagnostic system is called to carry out failure reason analysis.
(xi) fault model S11 is called
The fault model of diagnostic system is called, the matching and display of failure path mode are carried out.
(xii) diagnostic result S12
By the failure reason analysis of step (x), diagnostic result is obtained.
(xiii) display and storage S13
Step (xii) diagnostic result is shown in the form of diagnostic window in PC machine, while in the event of step (xi)
Path form is shown in barrier model, while being stored into database.
(xiv) S14 is ceased listening for
Stop diagnostic module program to diagnose the diagnosis target selected in step (vi).
(xv) expert knowledge library S15 is modified
Addition, modification, the deletion etc. of expertise knowledge are carried out to expert knowledge library established in step (v).
(xvi) stored knowledge library S16
Step (xv) expertise information modified is stored.
(xvii) fault model S17 is modified
Established fault model in step (iv) is added, modify, is deleted.
(xviii) storage model S18
The fault model information modified in step (xvii) is stored.
(xix) terminate S19.
Parameter in the step (ii) includes the power for pumping light control device acquisition, electric current, voltage parameter data, arteries and veins
Rush the pulse data signal of delayed signal generator acquisition, the temperature of high-power laser optical fiber coupler temperature monitoring device acquisition
Supplemental characteristic, the power data of laser power real-time monitoring device acquisition.
The fault model of diagnostic system includes being turned by the fault mode that chain analysis expert is put in laser vibration in the step (iv)
Computer graphical unit and the corresponding relationship with monitoring parameters made of changing, the corresponding device parameter of each graphic element.
The expert knowledge library of diagnostic system includes the Heuristics conversion that failure problems are solved by expert in the step (v)
Made of the language that can identify of computer, knowledge base is established using form of production.
The present invention uses artificial intelligence technology, is mutually tied by modular programming structure and laser system expertise knowledge
It closes, the thought process that chain expert solves the problems, such as the system failure is put in simulated laser vibration, and the vibration of real-time diagnosis laser is put chain malfunction, had
There are strong real-time height, stability, favorable expandability and the high characteristic of intelligence, suitable for process structure is complicated, influence factor is more, no
More factor, stability, real-time, scalability and the exigent laser vibration of intelligence can be surveyed and put chain, it can be with real-time diagnosis laser
Chain malfunction, and quick fault point are put in vibration.
Detailed description of the invention
Fig. 1 is the connection schematic diagram that chain is put in laser vibration in the present invention；
Fig. 2 is the connection schematic diagram that chain failure expert diagnostic system is put in laser vibration in the present invention；
Fig. 3 is the inside connection figure that PC machine in chain failure expert diagnostic system is put in laser vibration in the present invention；
Fig. 4 is the method flow diagram that chain expert diagnostic method for fault is put in laser vibration in the present invention；
Wherein:
1 pumping 2 fiber coupler of light device
3 laser power measurement device, 4 universal serial bus
5 optical fiber, 6 industry ethernet
7 pumping 8 pulse delayed signal generating devices of light control device
9 high-power laser optical fiber coupler temperature monitoring device
10 multi-path laser power real-time monitoring devices
A grade laser is put in the vibration of 11 PC machine 12
13 amplifier, 14 Laser synthesizing device
15 start 16 data acquisition module of module
17 fault diagnosis module, 18 expertise library module
The display of 19 fault model management modules 20 and memory module
21 ending module, 22 device parameter data
23 fault tree data, 24 expertise data
25 fault diagnosis result data.
Specific embodiment
Hereinafter, referring to drawings and examples, the present invention is described in detail:
As shown in Figure 1, it includes that chain i.e. 1 chain of λ~λ n chain is put in multiple vibrations that chain is put in laser vibration of the present invention, each laser vibration is put in chain
It include an oscillator stage laser 12 and multiple amplifiers 13, oscillator stage laser 12 is sequentially connected in series with amplifier 13, described
Oscillator stage laser 12 be connected with respective pumping light device 1, fiber coupler 2, oscillator stage laser 12, amplifier 13 it
Between, laser power measurement device 3 is provided between connected amplifier 13.The laser that chain generation is put in each laser vibration passes through laser
Synthesizer 14 is synthesized, and the laser of needs is formed, and 14 output end of Laser synthesizing device is provided with laser power measurement device 3.
As shown in Fig. 2, chain failure expert diagnostic system, including oscillator stage laser 12, amplifier 13 are put in a kind of laser vibration,
The oscillator stage laser 12 is connected with pumping light device 1 and fiber coupler 2, the amplifier 13 with pump light device 1 and
Fiber coupler 2 be connected, between oscillator stage laser 12, amplifier 13, between adjacent two amplifiers 13, amplifier 13 and swash
Between light synthesizer 14,14 output end of Laser synthesizing device is provided with laser power measurement device 3, the multiple pumping light device 1
It is connected by universal serial bus 4 with pumping light control device 7, the multiple pumping light device 1 passes through optical fiber 5 and pulse daley signal
Generator 8 is connected, and the fiber coupler 2 passes through universal serial bus 4 and high-power laser optical fiber coupler temperature monitoring device 9
It is connected, the multiple laser power measurement device 3 is connected by universal serial bus 4 with multi-path laser power real-time monitoring device 10, institute
State pumping light control device 7, pulse delayed signal generating device 8, high-power laser optical fiber coupler temperature monitoring device 9, multichannel
Laser power real-time monitoring device 10 is connected by industry ethernet 6 with PC machine 11, and fault diagnosis result is carried out by PC machine 11
Display.
The pumping light control device 7 is driven by the power supply, water cooling unit, LD that universal serial bus 4 pumps light device 1 to more
It is controlled accordingly with Q driving, and reads the supplemental characteristics such as corresponding power, electric current, voltage.
The pulse delayed signal generating device 8 controls the pulse signal of more pumping light devices 1 by optical fiber 5, and reads
Corresponding pulse data signal.
The high-power laser optical fiber coupler temperature monitoring device 9 reads multiple fiber couplers 2 by universal serial bus 4
Temperature parameter data.
The multi-path laser power real-time monitoring device 10 reads multiple laser power measurement devices by universal serial bus 4 in real time
3 power data.
PC machine 11 passes through industry ethernet 6 acquisition pumping in real time light control device 7, pulse delayed signal generating device 8, Gao Gong
Relevant parameter data measured by rate laser optical fibre coupler temperature monitoring device 9, multi-path laser power real-time monitoring device 10,
Real-time diagnosis is carried out, show diagnostic result and carries out respective stored.
It mainly includes energy supply control module, water cooling unit control module, LD drive control that light control device 7 is pumped in the present invention
Module, Q drive control module, power measurement module, temperature and humidity measurement module pass through energy supply control module, LD drive module tune
The current value in economize on electricity source pumps the performance number of light output to adjust, and passes through water cooling unit control module, the control pumping of Q drive module
The working condition of light, by monitor temperature and humidity value check pump light waterway pipe whether leak, pumping light control device 7 guarantee pump
Pu light device 1 is working properly.
By our hospital, application No. is 200720096960.8 patents to carry out disclosure for the pulse delayed signal generating device 8.
By our hospital, application No. is 201320120842.1 for the high-power laser optical fiber coupler temperature monitoring device 9
Patent carries out disclosure.
The multi-path laser power real-time monitoring device 10 by our hospital application No. is 201010049696.9 patent into
Row is open.
As shown in figure 3, including data acquisition module 16 in the PC machine 11, data acquisition module 16 is by device parameter data
Whether 22 real-time Transmissions break down to fault diagnosis module 17,17 real-time judge of fault diagnosis module diagnosis target, work as generation
When failure, the expertise data 24 of expertise library module 18 and the fault tree data 25 of fault model management module 19 are called
Afterwards, fault diagnosis result data 23 are provided after diagnostic analysis, real-time Transmission is to display and memory module (20), and by fault diagnosis
Result data 23 is stored.
As shown in figure 4, putting the diagnostic method of chain failure expert diagnostic system using a kind of above-mentioned laser vibration, including following
Step:
(i) start S1.
(ii) parameter setting S2
Multistage pumping light device 1, pulse delayed signal generating device 8, laser power measurement device 3, fiber coupling is set separately
The standard parameter range and fault parameter standard, range of 2 relevant parameter of device, parameter acquisition frequency etc..
(iii) initializing variable S3
By in step (ii) standard parameter range and fault parameter range arrived respectively with data collecting module collected
Parameter is corresponded, while is calculated accordingly collected parameter, obtain condition standard in fault coverage it
One.
(iv) fault model S4 is established
Chain composition is put according to laser vibration, the fault mode that laser analysis expert goes out establishes corresponding fault model, diagnosis system
System carries out the display of accident analysis and failure path by fault model figure.
(v) expert knowledge library S5 is established
The Heuristics that laser expert solves failure problems is established into a knowledge base, diagnostic system using this knowledge base into
The row fault diagnosis analysis of causes, provides diagnostic result.
(vi) diagnosis target S6 is selected
One final goal of selecting system carries out real-time diagnosis, analyzes the reason of this target exception.
(vii) S7 is begun listening for
According to the diagnosis target selected in (vi), starts starting diagnostic module program and diagnosed.
(viii) all parameter S8 are read
Log-on data acquisition module program, from all relevant parameter numbers being related in read failure model on detection device
According to.
(ix) target whether failure S9
By the supplemental characteristic read in step (viii), according to the parameter and standard and step of step (ii) setup parameter
(iii) whether the calculating standard in initializing variable, the selected diagnosis target of judgment step (vi) break down, break down and hold
Row step (x) does not break down and executes step (viii).
(x) knowledge base S10 is called
The knowledge base of diagnostic system is called to carry out failure reason analysis.
(xi) fault model S11 is called
The fault model of diagnostic system is called, the matching and display of failure path mode are carried out.
(xii) diagnostic result S12
By the failure reason analysis of step (x), diagnostic result is obtained.
(xiii) display and storage S13
Step (xii) diagnostic result is shown in the form of diagnostic window in PC machine 11, while in step (xi)
Path form is shown in fault model, while being stored into database.
(xiv) S14 is ceased listening for
Stop diagnostic module program to diagnose the diagnosis target selected in step (vi).
(xv) expert knowledge library S15 is modified
Addition, modification, the deletion etc. of expertise knowledge are carried out to expert knowledge library established in step (v).
(xvi) stored knowledge library S16
Step (xv) expertise information modified is stored.
(xvii) fault model S17 is modified
Established fault model in step (iv) is added, modify, is deleted.
(xviii) storage model S18
The fault model information modified in step (xvii) is stored.
(xix) terminate S19.
Parameter in the step (ii) includes pumping power, the electric current, voltage parameter data that light control device 7 acquires,
The pulse data signal that pulse delayed signal generating device 8 acquires, what high-power laser optical fiber coupler temperature monitoring device 9 acquired
Temperature parameter data, the power data that laser power real-time monitoring device 10 acquires.
The fault model of diagnostic system includes being turned by the fault mode that chain analysis expert is put in laser vibration in the step (iv)
Computer graphical unit and the corresponding relationship with monitoring parameters made of changing, the corresponding device parameter of each graphic element.
The expert knowledge library of diagnostic system includes the Heuristics conversion that failure problems are solved by expert in the step (v)
Made of the language that can identify of computer, knowledge base is established using form of production.
With the power data data instance that laser power real-time monitoring device 10 acquires, swashing for 14 rear class of Laser synthesizing device
The power data that measuring light power device 3 measures first determines whether Laser synthesizing when diagnosis target breaks down as diagnosis target
Whether the laser power measurement device 3 of each chain of 14 prime of device breaks down, and if a failure occurs, then searches this chain and laser closes
Grow up to be a useful person the pumping light device 1, fiber coupler 2 and the prime power checker 3 that are connected on 14 connected amplifiers 13 whether therefore
Barrier, step by step to being pushed forward, until finding fault point, provides faulty equipment point, is connected if finding oscillator stage laser 12
Equipment does not find faulty equipment, then belongs to unknown failure reason, and expert will will do it further accident analysis.
The present invention uses artificial intelligence technology, is mutually tied by modular programming structure and laser system expertise knowledge
It closes, the thought process that chain expert solves the problems, such as the system failure is put in simulated laser vibration, and the vibration of real-time diagnosis laser is put chain malfunction, had
There are strong real-time height, stability, favorable expandability and the high characteristic of intelligence, suitable for process structure is complicated, influence factor is more, no
More factor, stability, real-time, scalability and the exigent laser vibration of intelligence can be surveyed and put chain, it can be with real-time diagnosis laser
Chain malfunction, and quick fault point are put in vibration.
Claims (4)
1. the diagnostic method of chain failure expert diagnostic system is put in a kind of laser vibration, diagnostic system includes oscillator stage laser
(12), amplifier (13), the oscillator stage laser (12) is connected with pumping light device (1) and fiber coupler (2), described to put
Big device (13) is connected with pumping light device (1) and fiber coupler (2), between oscillator stage laser (12), amplifier (13), puts
Between big device (13), between amplifier (13) and Laser synthesizing device (14), Laser synthesizing device (14) output end is provided with laser
Power checker (3) pumps and is connected by universal serial bus (4) with pumping light control device (7) between light device (1), described more
A pumping light device (1) is connected by optical fiber (5) with pulse delayed signal generating device (8), and the fiber coupler (2) passes through
Universal serial bus (4) is connected with high-power laser optical fiber coupler temperature monitoring device (9), the multiple laser power measurement device
(3) it is connected by universal serial bus (4) with multi-path laser power real-time monitoring device (10), the pumping light control device (7), arteries and veins
Rush delayed signal generator (8), high-power laser optical fiber coupler temperature monitoring device (9), multi-path laser power real-time monitoring
Device (10) is connected by industry ethernet (6) with PC machine (11), and fault diagnosis result is shown by PC machine (11), is examined
Disconnected method, it is characterised in that: the following steps are included:
(i) S1 is started
(ii) parameter setting S2
Multistage pumping light device (1), pulse delayed signal generating device (8), laser power measurement device (3), optical fiber coupling is set separately
The standard parameter range and fault parameter standard, range of clutch (2) relevant parameter, parameter acquisition frequency etc.；
(iii) initializing variable S3
By the standard parameter range and the parameter that is arrived respectively with data collecting module collected of fault parameter range in step (ii)
It is corresponded, while collected parameter is calculated accordingly, obtain one of the condition standard in fault coverage；
(iv) fault model S4 is established
Chain composition is put according to laser vibration, the fault mode that laser analysis expert goes out establishes corresponding fault model, and diagnostic system is logical
Cross the display that fault model figure carries out accident analysis and failure path；
(v) expert knowledge library S5 is established
The Heuristics that laser expert solves failure problems is established into a knowledge base, diagnostic system carries out event using this knowledge base
The barrier diagnosis analysis of causes, provides diagnostic result；
(vi) selected diagnosis target S6
One final goal of selecting system carries out real-time diagnosis, analyzes the reason of this target exception；
(vii) S7 is begun listening for
According to the diagnosis target selected in (vi), starts to start diagnostic module program and diagnosed；
(viii) all parameter S8 are read
Log-on data acquisition module program, from all associated parameter datas being related in read failure model on detection device；
(ix) target whether failure S9
By the supplemental characteristic read in step (viii), according to the parameter and standard of step (ii) setup parameter and step (iii)
Whether the calculating standard in initializing variable, the diagnosis target that judgment step is (vi) selected break down, break down and execute step
Rapid (x) does not break down and executes step (viii)；
(x) knowledge base S10 is called
The knowledge base of diagnostic system is called to carry out failure reason analysis；
(xi) fault model S11 is called
The fault model of diagnostic system is called, the matching and display of failure path mode are carried out；
(xii) diagnostic result S12
By the failure reason analysis of step (x), diagnostic result is obtained；
(xiii) display and storage S13
Step (xii) diagnostic result is shown in the form of diagnostic window on PC machine (11), while in the event of step (xi)
Path form is shown in barrier model, while being stored into database；
(xiv) S14 is ceased listening for
Stop diagnostic module program to diagnose the diagnosis target selected in step (vi)；
(xv) expert knowledge library S15 is modified
Addition, modification, the deletion etc. of expertise knowledge are carried out to expert knowledge library established in step (v)；
(xvi) stored knowledge library S16
Step (xv) expertise information modified is stored；
(xvii) fault model S17 is modified
Established fault model in step (iv) is added, modify, is deleted；
(xviii) storage model S18
The fault model information modified in step (xvii) is stored；
(xix) terminate S19.
2. the diagnostic method of chain failure expert diagnostic system is put in a kind of laser vibration according to claim 1, it is characterised in that: institute
Stating the parameter in step (ii) includes the power of pumping light control device (7) acquisition, electric current, voltage parameter data, pulse daley
The pulse data signal of signal generator (8) acquisition, the temperature of high-power laser optical fiber coupler temperature monitoring device (9) acquisition
Supplemental characteristic, the power data of laser power real-time monitoring device (10) acquisition.
3. the diagnostic method of chain failure expert diagnostic system is put in a kind of laser vibration according to claim 1, it is characterised in that: institute
The fault model for stating diagnostic system in step (iv) includes putting meter made of the fault mode conversion of chain analysis expert as laser vibration
Calculation machine graphic element and corresponding relationship with monitoring parameters, the corresponding device parameter of each graphic element.
4. the diagnostic method of chain failure expert diagnostic system is put in a kind of laser vibration according to claim 1, it is characterised in that: institute
The expert knowledge library for stating diagnostic system in step (v) includes the calculating being transformed by the Heuristics that expert solves failure problems
The language that machine can identify establishes knowledge base using form of production.
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| CN106370394A (en) * | 2016-09-19 | 2017-02-01 | 核工业理化工程研究院 | Laser oscillation amplification chain fault expert diagnosis system |
| CN108615047B (en) * | 2018-03-23 | 2022-07-01 | 绍兴诺雷智信息科技有限公司 | Fault diagnosis knowledge model construction method for wind turbine generator equipment |
| CN110750519A (en) * | 2019-10-15 | 2020-02-04 | 核工业理化工程研究院 | System data management system and method |
| CN112033436A (en) * | 2020-08-07 | 2020-12-04 | 苏州天麓智能科技有限责任公司 | Fault diagnosis method of laser gyro inertial navigation system based on BIT test technology |
| CN113675706A (en) * | 2021-08-16 | 2021-11-19 | 中国工程物理研究院电子工程研究所 | Fiber laser health monitoring method |
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