CN109052181A - A kind of shipbuilding gantry crane failure monitoring diagnostic system and method - Google Patents
A kind of shipbuilding gantry crane failure monitoring diagnostic system and method Download PDFInfo
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- CN109052181A CN109052181A CN201811281178.2A CN201811281178A CN109052181A CN 109052181 A CN109052181 A CN 109052181A CN 201811281178 A CN201811281178 A CN 201811281178A CN 109052181 A CN109052181 A CN 109052181A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 230000003287 optical effect Effects 0.000 claims abstract description 31
- 230000015556 catabolic process Effects 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 40
- 230000006698 induction Effects 0.000 claims description 22
- 238000002405 diagnostic procedure Methods 0.000 claims description 17
- 238000004088 simulation Methods 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 238000003745 diagnosis Methods 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- Control And Safety Of Cranes (AREA)
Abstract
A kind of shipbuilding gantry crane failure monitoring diagnostic system and method are made in present invention offer, method includes the following steps: step 1, Fiber Bragg Grating Sensor Array is set on the surface of dock crane, distributes an ID coding to detection sensor each in Fiber Bragg Grating Sensor Array；Step 2 obtains the optical signal that all detection sensors generate in Fiber Bragg Grating Sensor Array, is digital signal by optical signal prosessing；Step 3, the digital signal for judging whether there is acquisition is more than preset digital signal, when the digital signal that there is acquisition is more than preset digital signal, is judged as failure；Step 4 shows breakdown judge result.
Description
Technical field
The present invention relates to crane safety technical fields, and in particular to a kind of shipbuilding gantry crane failure monitoring diagnosis system
System and method.
Background technique
In the use process of gantry crane equipment, metal structure can gradually be influenced by corrosion, wear etc. and generate change
Shape, strength and stiffness decline therewith.Traditional maintenance mode is periodic inspection, and it is each main can not systematically to record dock crane
The real-time stress parameters of metal structure, so that potential faults existing for gantry crane structure can not be found in time, it is hidden to failure
Suffer from and lack foresight, it is difficult to diagnose possible failure, reply can not be made in advance.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide making a kind of shipbuilding gantry crane failure
Monitoring and diagnosis system and method.
Shipbuilding gantry crane failure monitoring diagnostic method provided by the invention, has the feature that, including following step
Rapid: Fiber Bragg Grating Sensor Array is arranged on the surface of dock crane, to each in Fiber Bragg Grating Sensor Array in step 1
Detection sensor distributes an ID coding；Step 2 obtains what all detection sensors in Fiber Bragg Grating Sensor Array generated
Optical signal prosessing is digital signal by optical signal；Step 3, the digital signal for judging whether there is acquisition is more than preset number
Signal is judged as failure when the digital signal that there is acquisition is more than preset digital signal；Step 4 shows breakdown judge
As a result.
In shipbuilding gantry crane failure monitoring diagnostic method provided by the invention, it can also have the following features:
Wherein, Fiber Bragg Grating Sensor Array is set in step 1 specifically: the structural member quantity of dock crane is set as n, each
The surface of structural member is divided into k characteristic area according to surface shape and surface area, and each characteristic area is provided at least one induction
N optical cable branch line is arranged according to n structural member of dock crane in site, j detection sensing of connection on every optical cable branch line
Device, j >=k, detection sensor are correspondingly arranged on induction site, and the ID coding of the detection sensor on same optical cable branch line has
The ID of identical first identification division, the detection sensor of same characteristic area encodes the second identification division having the same, each
The ID coding for incuding the detection sensor in site has different difference parts.
In shipbuilding gantry crane failure monitoring diagnostic method provided by the invention, it can also have the following features:
Wherein, after judging failure, according to ID encode in the first identification division navigate to failure structural member, according to ID encode in second know
It does not navigate to the fault zone of failure partially, navigate to the induction site of failure according to the difference part of ID coding.
In shipbuilding gantry crane failure monitoring diagnostic method provided by the invention, which is characterized in that further include following
Step: all historical figures signals in same induction site are obtained according to ID coding and are carried out curve fitting, by curve matching knot
Ess-strain trend of the fruit as dock crane in the induction site.
In shipbuilding gantry crane failure monitoring diagnostic method provided by the invention, which is characterized in that further include following
Step: all historical failure information of dock crane are obtained, and are classified according to physical fault classification, database is established；
Data in comparison data library are retrieved, fault category anticipation is made to ess-strain trend.
In shipbuilding gantry crane failure monitoring diagnostic method provided by the invention, it can also have the following features:
Wherein, after Fiber Bragg Grating Sensor Array is set, three-dimensional simulation model also is established to dock crane, ID coding is existed
Induction site in three-dimensional simulation model is associated with one by one；According to the ID coding display shown in three-dimensional simulation model
Fault diagnosis result.
In shipbuilding gantry crane failure monitoring diagnostic method provided by the invention, it can also have the following features:
Wherein, also corresponding in Fiber Bragg Grating Sensor Array that temperature compensation sensor corresponding with detection sensor is set, and utilize
The digital signal of the digital signal amendment detection sensor of temperature compensation sensor.
The present invention also provides a kind of shipbuilding gantry crane failure monitoring diagnostic systems, have the feature that, comprising: more
A FBG detection sensor, is attached to the surface different location of crane respectively, and acquisition induction crane surface stress is strained and produced
Raw optical signal；First filter connect with FBG detection sensor, is filtered to optical signal for multi-channel filter, the
The multichannel of one filter respectively corresponds multiple FBG detection sensors；First fiber amplifier is multichannel optical fiber amplifier,
It is connect with first filter, signal amplification, corresponding first filter of the multichannel of the first fiber amplifier is carried out to optical signal after filtering
The multichannel of wave device；First fiber Bragg grating (FBG) demodulator connect for multi-channel fiber Bragg grating (FBG) demodulator with the first fiber amplifier,
It is electric signal by the optical signal demodulation of amplification；First analog-digital converter is multipath A/D converter, with the first fiber grating solution
It adjusts instrument to be connected, electric signal is converted into digital signal by analog signal；First memory is ROM memory, is stored with default
Digital signal；And host computer, it is connect with first memory and analog-digital converter, judges whether the digital signal of acquisition is big
The digital signal stored in first memory.
In shipbuilding gantry crane failure monitoring diagnostic system provided by the invention, which is characterized in that further include: it is multiple
FBG compensates sensor, second filter, the second fiber amplifier, the second fiber Bragg grating (FBG) demodulator, the second analog-digital converter,
In, multiple FBG compensation sensors are separately positioned on position corresponding with multiple FBG detection sensors, and do not contact crane
Surface；Second filter connects multiple FBG and compensates sensor；Second fiber amplifier is connected with second filter；Second light
Fine grating demodulation instrument is connect with the second fiber amplifier；Second analog-digital converter is connected with the second fiber Bragg grating (FBG) demodulator；On
Position machine is modified the output signal of the first analog-digital converter according to the output signal of the second analog-digital converter.
In shipbuilding gantry crane failure monitoring diagnostic system provided by the invention, which is characterized in that further include: second
Memory, is RAM memory, the digital signal for real-time storage acquisition；Wherein, host computer obtains going through in second memory
History digital signal is fitted to change trend curve.
Action and effect of the invention:
Shipbuilding gantry crane failure monitoring diagnostic system of the invention and method are realized to just in occurent event
Barrier is analyzed and is judged, the position of the failure of timely learning crane.And history data store is established into database, to working as
Preceding ess-strain trend makes fault category anticipation, is conducive to staff and is arranged targetedly to examine in time according to diagnostic message
It repairs and safeguards.
Detailed description of the invention
Fig. 1 is the schematic diagram of shipbuilding gantry crane failure monitoring diagnostic system method in the embodiment of the present invention；
Fig. 2 is the schematic diagram of shipbuilding gantry crane failure monitoring diagnostic system in the embodiment of the present invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example combination attached drawing is applied to be specifically addressed a kind of shipbuilding gantry crane failure monitoring diagnostic system of the present invention and method.
As shown in Figure 1, in the present embodiment shipbuilding gantry crane failure monitoring diagnostic method the following steps are included:
Step 1 is arranged Fiber Bragg Grating Sensor Array on the surface of dock crane, gives Fiber Bragg Grating Sensor Array
In each detection sensor distribute an ID coding.Specifically: the structural member quantity of dock crane is set as n, each structure
The surface of part is divided into k characteristic area according to surface shape and surface area, and each characteristic area is provided at least one induction site,
According to n structural member of dock crane, n optical cable branch line is set, j detection sensor of connection on every optical cable branch line, j >=
K, detection sensor are correspondingly arranged on induction site, and the ID coding of the detection sensor on same optical cable branch line is having the same
The ID of first identification division, the detection sensor of same characteristic area encodes the second identification division having the same, each induction position
The ID coding of the detection sensor of point has different difference parts.Also corresponding setting and inspection in Fiber Bragg Grating Sensor Array
Survey the corresponding temperature compensation sensor of sensor.After Fiber Bragg Grating Sensor Array is set, three also are established to dock crane
Virtual emulation model is tieed up, induction site of the ID coding in three-dimensional simulation model is associated with one by one.
Step 2 obtains the optical signal that all detection sensors generate in Fiber Bragg Grating Sensor Array, at optical signal
Reason is digital signal.And digital signal is further processed: utilizing the digital signal amendment detection of temperature compensation sensor
The digital signal of sensor, is influenced with compensation temperature.All historical figures signals in same induction site are obtained according to ID coding
And carry out curve fitting, the ess-strain trend using curve-fitting results as dock crane in the induction site.
Step 3, the digital signal for judging whether there is acquisition is more than preset digital signal, when the number that there is acquisition
When signal is more than preset digital signal, it is judged as failure.After judging failure, according to ID encode in the first identification division navigate to
The structural member of failure, according to ID encode in the second identification division navigate to failure fault zone, according to ID encode difference portion
Divide the induction site for navigating to failure.
All historical failure information of dock crane are obtained, and according to physical fault classification, for example (abrasion, burn into are split
Line etc.) classify, establish database.Data in comparison data library are retrieved, fault category anticipation is made to ess-strain trend.
Step 4, according to ID coding the display fault diagnosis result, fault category shown in three-dimensional simulation model.
As shown in Fig. 2, also being provided in the present embodiment a kind of applied to shipbuilding gantry crane failure monitoring diagnostic method
System.Shipbuilding gantry crane failure monitoring diagnostic system 100 includes:
Multiple FBG detection sensors 11 (only being illustrated in Fig. 2 with one), multiple FBG compensation sensor 21 (in Fig. 2 only with
One signal), first filter 12, second filter 22, the first fiber amplifier 13, the second fiber amplifier 23, the first light
Fine grating demodulation instrument 14, the second fiber Bragg grating (FBG) demodulator 24, the first analog-digital converter 15, the second analog-digital converter 25, host computer
16, second memory 17, second memory 18.
The sensed position on the surface of crane is stained with adhesive layer, and FBG detection sensor 11 is embedded to the inside of adhesive layer.It is more
A FBG detection sensor 11 is attached to the surface different location of crane respectively, for obtaining induction crane surface difference position
The optical signal that the ess-strain set generates.First filter 12 is multi-channel filter, and the multichannel of first filter 12 is distinguished
It is correspondingly connected with multiple FBG detection sensors 11, for being filtered to the optical signal of acquisition.First fiber amplifier 13 is more
The multichannel of channel fiber amplifier, the first fiber amplifier 13 is correspondingly connected with the multichannel of first filter 12, for that will filter
Optical signal after wave carries out signal amplification.First fiber Bragg grating (FBG) demodulator 14 is multi-channel fiber Bragg grating (FBG) demodulator, with the first light
Fiber amplifier 13 connects, for being electric signal by amplified optical signal demodulation.First fiber Bragg grating (FBG) demodulator 14 uses wavelength
Sweep type optical fiber laser realizes optical path gain as light source.First analog-digital converter 15 is multipath A/D converter and the
One fiber Bragg grating (FBG) demodulator 14 is connected, for electric signal to be converted to digital signal by analog signal.
The quantity that FBG compensates sensor 21 is consistent with the quantity of FBG detection sensor 11.Multiple FBG compensate sensor 21
It is separately positioned on the position adjacent with multiple FBG detection sensors 11, and does not contact the surface of crane, temperature sensor variation produces
Third contact of a total solar or lunar eclipse signal.Second filter 22 is multi-channel filter, multiple FBG compensation sensors 22 is connected, for carrying out to optical signal
Filtering processing.Second fiber amplifier 23 is multichannel optical fiber amplifier, is connected with second filter 22, to filtered light
Signal carries out signal amplification.Second fiber Bragg grating (FBG) demodulator 24 is multi-channel fiber Bragg grating (FBG) demodulator, with the second fiber amplifier
Device 23 connects, and is electric signal by optical signal demodulation.Second fiber Bragg grating (FBG) demodulator 24 also uses length scanning type optical fiber laser
As light source.Second analog-digital converter 25 is connected with the second fiber Bragg grating (FBG) demodulator 24, and electric signal is converted by digital signal
For analog signal.
First memory 17 is ROM memory, is stored with preset digital signal.Second memory 18 is RAM memory,
Digital signal for real-time storage acquisition.
Host computer 16 and first memory 17, second memory 18 and the first analog-digital converter 15, the second analog-to-digital conversion
Device connection 16 is connected.Host computer 16 is by corresponding computer program, according to the output signal pair of the second analog-digital converter 25
The output signal of first analog-digital converter 15 is modified；Judge whether the digital signal of acquisition is greater than in first memory 15 to deposit
The digital signal of storage；Obtaining the historical figures signal fitting in second memory 18 is change trend curve；Obtain the second storage
Historical figures signal, input physical fault classification in device 18 establish database；Data in comparison data library are retrieved, stress is answered
Change trend makes fault category anticipation.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (10)
1. a kind of shipbuilding gantry crane failure monitoring diagnostic method, which comprises the following steps:
Step 1 is arranged Fiber Bragg Grating Sensor Array on the surface of dock crane, gives the Fiber Bragg Grating Sensor Array
In each detection sensor distribute an ID coding；
Step 2 obtains the optical signal that all detection sensors generate in the Fiber Bragg Grating Sensor Array, the light is believed
Number processing be digital signal；
Step 3, the digital signal for judging whether there is acquisition is more than preset digital signal, when the digital signal that there is acquisition
When more than preset digital signal, it is judged as failure；
Step 4 shows breakdown judge result.
2. a kind of shipbuilding gantry crane failure monitoring diagnostic method according to claim 1, it is characterised in that:
Wherein, the Fiber Bragg Grating Sensor Array is set in the step 1 specifically:
The structural member quantity of the dock crane is set as n, and the surface of each structural member is according to surface shape and surface
Product is divided into k characteristic area, and each characteristic area is provided at least one induction site,
N optical cable branch line is set according to n structural member of the dock crane, connects j institute on every optical cable branch line
Detection sensor, j >=k are stated, the detection sensor is correspondingly arranged on the induction site,
The ID of the detection sensor on same optical cable branch line encodes the first identification division having the same,
The ID of the detection sensor of same characteristic area encodes the second identification division having the same,
The ID coding of the detection sensor in each induction site has different difference parts.
3. a kind of shipbuilding gantry crane failure monitoring diagnostic method according to claim 2, it is characterised in that:
Wherein, after judging failure, the structural member of failure is navigated to, according to the ID according to the first identification division in ID coding
The second identification division navigates to the fault zone of failure, navigates to the sense of failure according to the difference part of ID coding in coding
Answer site.
4. a kind of shipbuilding gantry crane failure monitoring diagnostic method according to claim 1, which is characterized in that further include
Following steps:
All historical figures signals in same induction site are obtained according to ID coding and are carried out curve fitting, by curve-fitting results
Ess-strain trend as the dock crane in the induction site.
5. a kind of shipbuilding gantry crane failure monitoring diagnostic method according to claim 4, which is characterized in that further include
Following steps:
All historical failure information of the dock crane are obtained, and are classified according to physical fault classification, data are established
Library；
Retrieval compares data in the database, makes fault category anticipation to the ess-strain trend.
6. a kind of shipbuilding gantry crane failure monitoring diagnostic method according to claim 1, it is characterised in that:
Wherein, after the Fiber Bragg Grating Sensor Array is set, three-dimensional emulation mould also is established to the dock crane
Induction site of the ID coding in the three-dimensional simulation model is associated with by type one by one；
According to the ID coding display fault diagnosis result shown in the three-dimensional simulation model.
7. a kind of shipbuilding gantry crane failure monitoring diagnostic method according to claim 1, it is characterised in that:
Wherein, also corresponding in the Fiber Bragg Grating Sensor Array that temperature-compensating biography corresponding with the detection sensor is set
Sensor,
And the digital signal of the detection sensor is corrected using the digital signal of the temperature compensation sensor.
8. a kind of shipbuilding gantry crane failure monitoring diagnostic system characterized by comprising
Multiple FBG detection sensors, are attached to the surface different location of crane respectively, and acquisition induction crane surface stress is answered
The optical signal for becoming and generating；
First filter is multi-channel filter, connect with the FBG detection sensor, be filtered to optical signal, described the
The multichannel of one filter respectively corresponds multiple FBG detection sensors；
First fiber amplifier is multichannel optical fiber amplifier, connect with the first filter, carry out to optical signal after filtering
Signal amplification, the multichannel of first fiber amplifier correspond to the multichannel of the first filter；
First fiber Bragg grating (FBG) demodulator is multi-channel fiber Bragg grating (FBG) demodulator, connect, will amplify with first fiber amplifier
Optical signal demodulation be electric signal；
First analog-digital converter is multipath A/D converter, is connected with first fiber Bragg grating (FBG) demodulator, by electric signal
Digital signal is converted to by analog signal；
First memory is ROM memory, is stored with preset digital signal；And
Host computer is connect with the first memory and the analog-digital converter, judges whether the digital signal of acquisition is greater than
The digital signal stored in the first memory.
9. a kind of shipbuilding gantry crane failure monitoring diagnostic system according to claim 8, which is characterized in that also wrap
It includes:
Multiple FBG temperature compensation sensors, second filter, the second fiber amplifier, the second fiber Bragg grating (FBG) demodulator, the second mould
Number converter,
Wherein, the multiple FBG temperature compensation sensor is separately positioned on position corresponding with multiple FBG detection sensors
It sets, and does not contact the surface of crane；
The second filter connects multiple FBG temperature compensation sensors；
Second fiber amplifier is connected with the second filter；
Second fiber Bragg grating (FBG) demodulator is connect with second fiber amplifier；
Second analog-digital converter is connected with second fiber Bragg grating (FBG) demodulator；
The host computer is according to the output signal of second analog-digital converter to the output signal of first analog-digital converter
It is modified.
10. a kind of shipbuilding gantry crane failure monitoring diagnostic method according to claim 8, which is characterized in that also wrap
It includes:
Second memory, is RAM memory, the digital signal for real-time storage acquisition；
Wherein, it is change trend curve that the host computer, which obtains the historical figures signal fitting in the second memory,.
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| CN110186384A (en) * | 2019-06-25 | 2019-08-30 | 哈尔滨工程大学 | Ship Structure stress monitoring system sensor bias method for diagnosing faults |
| CN112607611A (en) * | 2020-12-31 | 2021-04-06 | 中国水利水电夹江水工机械有限公司 | Positioning control method for large-capacity gantry crane |
| CN114358060A (en) * | 2021-12-21 | 2022-04-15 | 福建省特种设备检验研究院泉州分院 | Fault detection method for crane equipment |
| CN114836881B (en) * | 2022-04-06 | 2023-03-21 | 榕普科技(宁波)有限公司 | Yarn breakage detection method and device for shuttleless loom and automatic shutdown system |
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