CN207195097U - A kind of blade state monitoring system of the wind power generating set based on video image processing - Google Patents
A kind of blade state monitoring system of the wind power generating set based on video image processing Download PDFInfo
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- CN207195097U CN207195097U CN201720940850.9U CN201720940850U CN207195097U CN 207195097 U CN207195097 U CN 207195097U CN 201720940850 U CN201720940850 U CN 201720940850U CN 207195097 U CN207195097 U CN 207195097U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 54
- 230000005236 sound signal Effects 0.000 claims abstract description 72
- 238000010191 image analysis Methods 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000003909 pattern recognition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
It the utility model is related to a kind of blade state monitoring system of the wind power generating set based on video image processing, including blower fan, blower fan noise processing module, data acquisition and monitoring control module and fan blade Computer Vision module, the blower fan includes the tower on level ground, the cabin for being arranged on the atop a tower and the blade installed in the cabin end；The blower fan noise processing module includes being analyzed and processed to obtain the sound signal processing circuit of the blade wear degree to gather the sound signal collecting unit of the blower fan sound vibration signal and the sound vibration signal for the sound signal collecting unit to be gathered.The utility model obtains the vibration frequency of blade by blower fan noise processing module, and then obtain the degree of wear of blade, realize the monitoring to blade vibration situation, to judge whether fan operation is safe, so as to improve the safety in operation of blower fan, also cause that blower fan is easy to maintenance, reduces the operational ton of maintainer simultaneously.
Description
Technical field
It the utility model is related to fan blade Condition Monitoring Technology field, more particularly to it is a kind of based on video image processing
The blade state monitoring system of wind power generating set.
Background technology
The blade state monitoring of blower fan is always an Important Problems in industry.At present, existing fan blade state
Monitoring is to monitor the vibrational state of blade in real time via vibrating sensor by installing vibrating sensor on blade.The blower fan
Although blade state monitoring system need not carry out destructive detection to blade, in the vibrational state to obtaining blade
Data are carried out except making an uproar, filter, calibrating and pattern-recognition etc. has many weak points；It is meanwhile intact having installed
Vibrating sensor is installed on the blade of blower fan, it has not been convenient to install, installation difficulty is higher.
Utility model content
The vibration shape to obtaining blade for fan blade condition monitoring system of the prior art be present in the utility model
The defects of state data are carried out except making an uproar, filter, calibrating and pattern-recognition etc. has many weak points, and installation difficulty is high,
A kind of contactless fan blade condition monitoring system is provided, the vibration of blade can be monitored by remote non-contacting mode
Situation, the limitation for avoiding blade from installing, it is provided simultaneously with easy to maintenance, the simple contactless fan blade state prison of signal transmission
Examining system.
Technical scheme is used by the utility model：
A kind of contactless fan blade condition monitoring system, including blower fan, blower fan noise processing module, data acquisition with
Control module and fan blade Computer Vision module are monitored, tower that the blower fan includes being arranged on level ground, is set
Put the cabin in the atop a tower and the blade installed in the cabin end；
The blower fan noise processing module is included to gather the sound signal collecting list of the blower fan sound vibration signal
Member and the sound vibration signal for the sound signal collecting unit to be gathered are analyzed and processed to obtain the blade wear
The sound signal processing circuit of degree, the sound signal collecting unit and sound signal processing circuit electrical connection；
The blower fan noise processing module be electrically connected to the data acquisition with monitoring control module, the data acquisition with
Monitoring control module is electrically connected to the fan blade Computer Vision module；
The fan blade Computer Vision module includes being arranged on being regarded for gathering the blade on the blower fan
The fan blade video image acquisition device of frequency signal or picture signal, the fan blade video image acquisition device output end connection
Have and carry out analyzing and processing acquisition spy for the vision signal or picture signal gathered to the fan blade video image acquisition device
The fan blade video image analysis device of reference number, the fan blade video image analysis device output end are connected with to analyze
Output characteristic signal that the fan blade video image analysis device obtains and obtain the fan blade of the blade wear degree
Video image characteristic signal analyzer.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the sound signal collecting unit bag
Include the first sound signal collecting device, second sound signal collector and the 3rd sound signal collecting device.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the first sound signal collecting device
Quantity to be multiple, and multiple first sound signal collecting device intervals are installed in the nacelle top.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the second sound signal collector
Quantity is 3, and the second sound signal collector spacer ring is around outside the tower.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the 3rd sound signal collecting device
It is arranged on the blade lower position.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the first sound signal collecting device,
The second sound signal collector and the 3rd sound signal collecting device are sound pick-up.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the sound signal processing circuit bag
Include and carry out analyzing and processing acquisition sound vibration signal correspondingly for the sound vibration signal for gathering the sound signal collecting device
The blower fan noise audio analyzer of characteristic frequency and the characteristic frequency for being obtained to the blower fan noise audio analyzer are carried out
Analyzing and processing obtains the blower fan noise eigenfrequency Analysis device of the blade wear degree, the blower fan noise audio analyzer and
The blower fan noise eigenfrequency Analysis device electrical connection.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the fan blade video image is adopted
Storage is video camera or camera.
The beneficial effects of the utility model are：
Contactless fan blade condition monitoring system of the present utility model, blade is obtained by blower fan noise processing module
Vibration frequency, and then obtain the degree of wear of blade, the monitoring to blade vibration situation realized, whether to judge fan operation
Safety, so as to improve the operational safety performance of blower fan, effectively enhances practicality, while it is also possible that blower fan maintenance side
Just, the operational ton of maintainer can be reduced.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of workflow diagram of contactless fan blade condition monitoring system described in the utility model；
Fig. 2 is that a kind of blower fan structure of contactless fan blade condition monitoring system described in the utility model is illustrated
Figure.
Description of reference numerals is as follows：
1st, blower fan；11st, tower；12nd, cabin；13rd, blade；
2nd, blower fan noise processing module；21st, sound signal collecting unit；211st, the first sound signal collecting device；212nd,
Two sound signal collecting devices；213rd, the 3rd sound signal collecting device；22nd, sound signal processing circuit；221st, blower fan noise audio
Analyzer；222nd, blower fan noise eigenfrequency Analysis device；
3rd, data acquisition and monitoring control module；
4th, fan blade Computer Vision module；41st, fan blade video image acquisition device；42nd, fan blade video
Image dissector；43rd, fan blade video image characteristic signal analyzer.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only the utility model part of the embodiment, rather than whole implementation
Example.Based on the embodiment in the present invention, obtained by those of ordinary skill in the art are not on the premise of creative work is made
All other embodiment, belong to the scope protected of the present invention.
Embodiment one,
With reference to figure 1-2, the utility model provides a kind of contactless fan blade condition monitoring system, including blower fan 1,
Blower fan noise processing module 2, data acquisition and monitoring control module 3 and fan blade Computer Vision module 4, blower fan 1 wraps
Include the tower 11 on level ground, the cabin 12 for being arranged on the top of tower 11 and the blade installed in the end of cabin 12
13；
Blower fan noise processing module 2 is included to gather the He of sound signal collecting unit 21 of the sound vibration signal of blower fan 1
Sound vibration signal for sound signal collecting unit 21 to be gathered is analyzed and processed to obtain the sound of the degree of wear of blade 13
Sound signal processing unit 22, sound signal collecting unit 21 and sound signal processing circuit 22 electrically connect；
Blower fan noise processing module 2 is electrically connected to data acquisition and monitoring control module 3, data acquisition and monitoring control mould
Block 3 is electrically connected to fan blade Computer Vision module 4；
Fan blade Computer Vision module 4 include be arranged on blower fan 1 on be used for gather the vision signal of blade 13 or
The fan blade video image acquisition device 41 of picture signal, the output end of fan blade video image acquisition device 41 be connected with for pair
The vision signal or picture signal that fan blade video image acquisition device 41 gathers carry out the wind that analyzing and processing obtains characteristic signal
Machine blade video image analysis device 42, the output end of fan blade video image analysis device 42, which is connected with to analyze fan blade, to be regarded
Frequency image dissector 42 obtain output characteristic signal and obtain the degree of wear of blade 13 fan blade video image characteristic letter
Number analyzer 43.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, sound signal collecting unit 21 includes
First sound signal collecting device 211, the sound signal collecting device 213 of second sound signal collector 212 and the 3rd.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the first sound signal collecting device 211
Quantity is multiple, and multiple first sound signal collecting devices 211 interval is installed in the top of cabin 12, can so facilitate to cabin
The voice signal at 12 tops is collected.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, second sound signal collector 212 counts
Measure as 3, and the spacer ring of second sound signal collector 212 is around outside tower 11, so can be to the shake of tower 11
Dynamic signal is collected.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the 3rd sound signal collecting device 213 is set
Put in the lower position of blade 13, the purpose so set is that the vibration signal of blade 13 can be collected.
During actual installation, it can be selected according to on-site actual situations respectively in the top of cabin 12 of blower fan 1, blower fan 1
The outside different height position of tower 11 axial direction and/or blower fan 1 the close beneath opening position of blade 13 installation corresponding to sound
Signal gathering unit 21, particular number and position according to the actual requirements depending on.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, the first sound signal collecting device 211,
The sound signal collecting device 213 of second sound signal collector 212 and the 3rd is sound pick-up, and the vibration signal of collection is included but not
It is limited to 2 ~ 2000kHz audio signals.
The operation principle of above-mentioned blower fan noise processing module 2 is：
First, pass through the first sound signal collecting device 211, the second sound signal collector of sound signal collecting unit 21
212 and the 3rd sound signal collecting device 213 gather tower 11 when blower fan 1 operates, the acoustical vibration letter of cabin 12 and blade 13
Number；Second, the sound vibration signal gathered by blower fan noise audio analyzer 221 to sound signal collecting unit 21, which uses, to be cut
Frequently, modulation, the time domain/processing method such as frequency domain conversion and/or filtering, export characteristic frequency corresponding to sound vibration signal；3rd,
From data acquisition with gathering the required state of blower fan 1 in monitoring control module 3, meanwhile, pass through blower fan noise eigenfrequency Analysis
The characteristic frequency that device 222 exports to blower fan noise audio analyzer 221 obtains the degree of wear of blade 13, if the degree of wear reaches
To certain value, data acquisition will send pre-warning signal with monitoring control module 3, be so as to realize to monitor and judge that blower fan 1 is run
No safety, improve the operational safety performance of blower fan 1.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, sound signal processing circuit 22 includes
Sound vibration signal for sound signal collecting device to be gathered carries out analyzing and processing and obtains sound vibration signal character pair frequency
The blower fan noise audio analyzer 221 of rate and the characteristic frequency for being obtained to blower fan noise audio analyzer 221 are analyzed
Processing obtains the blower fan noise eigenfrequency Analysis device 222 of the degree of wear of blade 13, blower fan noise audio analyzer 221 and blower fan
Noise eigenfrequency Analysis device 222 electrically connects, and blower fan audio analyzer carries out cut-off frequency, modulation, time domain/frequency to sound vibration signal
The processing such as domain conversion and/or filtering, last output characteristic frequency.
Optimization, a kind of above-mentioned contactless fan blade condition monitoring system, fan blade video image acquisition device
41 be video camera, fan blade video image analysis device 42 vision signal or picture signal are carried out deconvolution, except make an uproar, feature is known
Not and/or feature captures etc., last output characteristic signal.
The operation principle of above-mentioned fan blade Computer Vision module 4 is：
First, the vision signal of blade 13 or picture signal are gathered by fan blade video image acquisition device 41；Second, lead to
Cross fan blade video imager to the vision signal of blade 13 or picture signal of collection using deconvolution, except make an uproar, feature recognition
And/or the processing such as feature crawl, caused motion blur data are rotated to blade 13 and are rejected, are adjusted according to ambient conditions bright
Degree or saturation degree etc., characteristic signal corresponding to final output video signal or picture signal；3rd, controlled from data acquisition and monitoring
The required state of blower fan 1 is gathered in molding block 3, meanwhile, by fan blade video image characteristic signal analyzer 43 to blower fan
Blade video image analysis device 42 obtains the degree of wear for the blade 13 that characteristic signal obtains, if the degree of wear reaches certain
Value, data acquisition will send pre-warning signal with monitoring control module 3, so as to realize monitoring and judge whether blower fan 1 is run safe,
Improve the operational safety performance of blower fan 1.
Embodiment two,
The present embodiment is different from the species for differing only in fan blade video image acquisition device 41 of embodiment one, implements
The fan blade video image acquisition device 41 of example one is video camera, and the present embodiment fan blade video image acquisition device 41 is photograph
Camera.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of blade state monitoring system of the wind power generating set based on video image processing, it is characterised in that including wind
Machine, blower fan noise processing module, data acquisition and monitoring control module and fan blade Computer Vision module, the blower fan
Including the tower on level ground, it is arranged on the cabin of the atop a tower and the leaf installed in the cabin end
Piece；
The blower fan noise processing module include to gather the sound signal collecting unit of the blower fan sound vibration signal and
Sound vibration signal for the sound signal collecting unit to be gathered is analyzed and processed to obtain the blade wear degree
Sound signal processing circuit, the sound signal collecting unit and the sound signal processing circuit electrical connection；
The blower fan noise processing module is electrically connected to the data acquisition and monitoring control module, the data acquisition and monitoring
Control module is electrically connected to the fan blade Computer Vision module；
The fan blade Computer Vision module includes being arranged on is used to gather the blade video letter on the blower fan
Number or picture signal fan blade video image acquisition device, the fan blade video image acquisition device output end is connected with use
Analyzing and processing, which is carried out, in the vision signal or picture signal gathered to the fan blade video image acquisition device obtains feature letter
Number fan blade video image analysis device, the fan blade video image analysis device output end is connected with to analyze described
Fan blade video image analysis device obtain output characteristic signal and obtain the fan blade video of the blade wear degree
Characteristics of image signal analyzer.
2. blade state monitoring system according to claim 1, it is characterised in that the sound signal collecting unit includes
First sound signal collecting device, second sound signal collector and the 3rd sound signal collecting device.
3. blade state monitoring system according to claim 2, it is characterised in that the first sound signal collecting device
Quantity is multiple, and multiple first sound signal collecting device intervals are installed in the nacelle top.
4. blade state monitoring system according to claim 2, it is characterised in that the second sound signal collector
Quantity is 3, and the second sound signal collector spacer ring is around outside the tower.
5. blade state monitoring system according to claim 2, it is characterised in that the 3rd sound signal collecting device is set
Put in the blade lower position.
6. blade state monitoring system according to claim 2, it is characterised in that the first sound signal collecting device,
The second sound signal collector and the 3rd sound signal collecting device are sound pick-up.
7. blade state monitoring system according to claim 1, it is characterised in that the sound signal processing circuit includes
Sound vibration signal for the sound signal collecting device to be gathered carries out analyzing and processing and obtains the corresponding spy of sound vibration signal
The blower fan noise audio analyzer and the characteristic frequency for being obtained to the blower fan noise audio analyzer for levying frequency are divided
Analysis handles to obtain the blower fan noise eigenfrequency Analysis device of the blade wear degree, the blower fan noise audio analyzer and institute
State the electrical connection of blower fan noise eigenfrequency Analysis device.
8. blade state monitoring system according to claim 1, it is characterised in that the fan blade video image acquisition
Device is video camera or camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940850.9U CN207195097U (en) | 2017-07-31 | 2017-07-31 | A kind of blade state monitoring system of the wind power generating set based on video image processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720940850.9U CN207195097U (en) | 2017-07-31 | 2017-07-31 | A kind of blade state monitoring system of the wind power generating set based on video image processing |
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| Publication Number | Publication Date |
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| CN207195097U true CN207195097U (en) | 2018-04-06 |
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| CN201720940850.9U Expired - Fee Related CN207195097U (en) | 2017-07-31 | 2017-07-31 | A kind of blade state monitoring system of the wind power generating set based on video image processing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108855306A (en) * | 2018-07-23 | 2018-11-23 | 深圳威琳懋生物科技有限公司 | A kind of rice guarantor embryo rice mill |
| CN111120220A (en) * | 2018-10-31 | 2020-05-08 | 北京金风科创风电设备有限公司 | Method and system for video monitoring of wind generating set blade |
| CN111255637A (en) * | 2018-11-30 | 2020-06-09 | 北京金风科创风电设备有限公司 | Real-time monitoring system and method for tower clearance |
| WO2021155741A1 (en) * | 2020-02-05 | 2021-08-12 | 中国海洋大学 | Wind generator blade state of health monitoring apparatus and monitoring method thereof |
-
2017
- 2017-07-31 CN CN201720940850.9U patent/CN207195097U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108855306A (en) * | 2018-07-23 | 2018-11-23 | 深圳威琳懋生物科技有限公司 | A kind of rice guarantor embryo rice mill |
| CN111120220A (en) * | 2018-10-31 | 2020-05-08 | 北京金风科创风电设备有限公司 | Method and system for video monitoring of wind generating set blade |
| CN111120220B (en) * | 2018-10-31 | 2021-05-28 | 北京金风科创风电设备有限公司 | Method and system for video monitoring of wind turbine blades |
| CN111255637A (en) * | 2018-11-30 | 2020-06-09 | 北京金风科创风电设备有限公司 | Real-time monitoring system and method for tower clearance |
| WO2021155741A1 (en) * | 2020-02-05 | 2021-08-12 | 中国海洋大学 | Wind generator blade state of health monitoring apparatus and monitoring method thereof |
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