CN108760814A - A kind of composite insulator is infrared to combine intelligent detecting method and its device with millimeter wave - Google Patents
A kind of composite insulator is infrared to combine intelligent detecting method and its device with millimeter wave Download PDFInfo
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Abstract
Combine intelligent detecting method and its device with millimeter wave the present invention relates to a kind of composite insulator is infrared, including：The infrared image of S1, thermal infrared imager shooting composite insulator；S2, image denoising, segmentation and binary morphology image procossing are carried out to infrared image, and obtains composite insulator region；S3, the gray value of infrared image is fitted, and obtains composite insulator temperature profile parameter；S4, composite insulator is transmitted using millimeter wave detecting instrument and is detected, obtain millimeter wave transmission curve；S5, the detection of selective transmission formula millimeter wave characteristic spectra, extract millimeter wave characteristic value from millimeter wave transmission curve, and the millimeter wave characteristic value of extraction be subjected to comprehensive characteristics screening together with temperature profile value, obtain that insulator is infrared and millimeter wave characteristic parameter；In S6, the Faulty insulator intelligent recognition model that characteristic parameter is imported to consideration ambient temperature and humidity, filth and damp degree complicated factor and is established, diagnostic result is obtained, determines type and the position of defect.
Description
Technical field
The present invention relates to power equipment operating statuses to overhaul field, more particularly to a kind of composite insulator is infrared and millimeter wave
Joint intelligent detecting method and its device.
Background technology
Composite insulator makes up because its is light-weight, intensity is high, resistance to pollution flashover performance is strong, manufactures many merits such as easy to maintain
The deficiency of porcelain and glass insulator, the application in power grid are more and more extensive, it has also become the main force of China's insulator.Mesh
Before, the composite insulator quantity used in nationwide integrated power grid is up to millions of, and run time is longest more than 20 years.It is multiple
The main component for closing insulator sheath is silicon rubber, when being chronically exposed in outdoor environment, silicon rubber by solarization, drench with rain, high
The physics chemical actions such as temperature, severe cold, husky erosion, acid etching, highfield, polymer chain such as are gradually decomposed and volatilize at the variations, property
It can gradually decline, composite insulator is caused the features such as dusting, hardening, cracking, galvanic corrosion damage, hydrophobicity loss occur, thus with
The increase of service life, the composite insulator degradation of resistance to pollution flashover, insulating reliability reduce.Composite insulator is not conforming to specification behaviour
Make or will appear that mechanical strength declines, gold utensil loosens, plug has sour gas intrusion in During Process of Long-term Operation, causes plug de-
It falls or brittle failure.
Domestic and international researcher has carried out numerous studies to composite insulator detection technique, can be divided by detection operation mode and connect
Touch and two kinds contactless.The former includes short-circuit fork method or spark gap method, Photoelectric Detection bar method, electric field measurement method, pulse
Current method, leakage current method etc.；The latter includes ultraviolet image method, IR thermal imaging inspection method, ping method, laser Doppler method.
Contact measurement operation needs to scene to measure one by one, or even steps on bar and step on tower, and labor intensity is big, and efficiency is low, dangerous high.
The composite insulator of the detectable cracking of non-contact detecting method such as laser Doppler method, but uncracked composite insulator is not risen
Effect, and equipment volume is huge, is not suitable for field work.Ping method is because of coupling, decaying and ultrasonic transducer performance issue mesh
It is preceding not yet to have important breakthrough in remote telemetering, be not suitable for operation Site Detection, and it is mainly used for enterprise's production on-line checking
And laboratory qualification.When being detected using ultraviolet image method, shelf depreciation state need to occur for insulator, normal temperature,
It is carried out in high humidity environment, and detection device is expensive, has a single function, testing result is easy to be influenced by viewing angle.
The relatively broad detection technique of current application is IR thermal imaging inspection method, IR thermal imaging inspection method be capable of detecting when by
Insulator local temperature liter caused by dielectric loss or resistance loss when shelf depreciation, leakage current flow through megohmite insulant etc.
Height, but temperature amount easily by sunlight, strong wind, moisture, environment temperature and some can cause insulator surface temperature change dramatically factor
It influences.Simultaneously composite insulator the defects of there is insulator interfacial air gap, underbead cracks, IR thermal imaging inspection method is to such hidden
The covering property defects detection detection result with obvious effects not as good as to conductive defect.And millimeter wave has very strong penetration power, it can
It is effectively detected out the inside blind crack of composite insulator, and it is compared with microwave, it is excellent that it has, and wave beam is narrow, wavelength is short
Point, and the size of millimeter wave component is much smaller, it is easier to integrated detection system.Millimeter wave detection method and IR thermal imaging inspection
Method can have complementary advantages, it is therefore necessary to infrared and millimeter wave be taken to carry out joint intelligent measurement to composite insulator.
Invention content
Goal of the invention：It obtains the infrared thermogram of composite insulator and carries out technical finesse to it, extract compound inslation
The temperature profile value of son carries out millimeter wave transmission detection to composite insulator to be measured, extracts millimeter wave characteristic value, simultaneously by the two
Formed after Feature Selection that insulator is infrared and millimeter wave characteristic parameter, to considering ambient temperature and humidity, filth and damp degree
The Faulty insulator intelligent recognition model for waiting complicated factors and establishing imports infrared and millimeter wave characteristic parameter, obtains judging knot
Fruit, that is, provide that a kind of composite insulator is infrared to combine intelligent detecting method and its device with millimeter wave, improves composite insulator and lacks
Fall into the accuracy rate of detection.
Technical solution：
A kind of composite insulator is infrared to combine intelligent detecting method with millimeter wave, the described method comprises the following steps：
S1, the infrared image that composite insulator is shot by thermal infrared imager；
S2, image denoising, segmentation and binary morphology image procossing are carried out to obtained infrared image, and obtained compound in image
Insulator region；
S3, the gray value of the step S2 images obtained is fitted, and obtains composite insulator temperature profile parameter；
S4, transmission detection is carried out to composite insulator using millimeter wave detecting instrument, obtains the amplitude-frequency comprising transmission signal, phase
And the millimeter wave transmission curve of polarization characteristic；
The characteristic spectra that S5, selective transmission formula millimeter wave detect extracts millimeter wave characteristic value from millimeter wave transmission curve, and will carry
The millimeter wave characteristic value taken carries out comprehensive characteristics screening together with temperature profile value, obtains that insulator is infrared and millimeter wave characteristic ginseng
Number；
S6, characteristic parameter is imported to the Faulty insulator for considering ambient temperature and humidity, filth and damp degree complicated factor and establishing
In intelligent recognition model, diagnostic result is obtained, determines type and the position of defect.
As a kind of preferred embodiment of the present invention, the Infrared Thermogram that the step S1 is obtained should be less than by heat sensitivity
0.03 DEG C of professional infrared video camera shooting, and reference object is the composite insulator in live line work.
As a kind of preferred embodiment of the present invention, the image processing techniques of the method step S2 should include to original image
Noise reduction, gray processing processing, and compound inslation subregion is accurately extracted by form binary image treatment technology.
It is bad by infrared and millimeter wave characteristic parameter comprehensive judgement composite insulator as a kind of preferred embodiment of the present invention
Change situation；Defect is detected by the polarization characteristic of millimeter-wave signal, detection of the not like-polarized millimeter wave to micro-crack
Effect will produce different effect.
As a kind of preferred embodiment of the present invention, defect is detected by the phase characteristic of millimeter-wave signal, when milli
Phase can change when metric wave passes through different medium, and determine flaw size according to initial and transparent millimeterwave phase information,
And composite insulator inside or face crack are intuitively shown by mm-wave imaging.
As a kind of preferred embodiment of the present invention, according to consideration ambient temperature and humidity, filth and damp degree complicated factor
The Faulty insulator intelligent recognition model of foundation analyzes infrared and millimeter wave characteristic parameter, to obtain insulator deterioration condition
And defect position.
A kind of composite insulator is infrared to combine intelligent detection device with millimeter wave, including mm-wave signal source, isolator, declines
Subtract device, directional coupler, transmitting antenna, reception antenna, receiver, thermal infrared imager, analysis machine, the analysis machine is by millimeter wave
Parameter processing area, IR parameters treatment region, characteristic value Integrated Selection module, Faulty insulator intelligent recognition model and output and can
View apparatus forms；The mm-wave signal source is transmitted for emitting frequency conversion millimeter wave by isolator, attenuator, directional coupler
To transmitting antenna；The isolator be used for according to linear optical coupling isolation principle by input signal carry out conversion output and with input
Millimeter-wave signal is isolated；The attenuator is used to adjust the size of output millimeter-wave signal and improves the impedance matching of access；Institute
Directional coupler is stated for isolation, separation and the mixing of signal and ensures the isolation of transmitting terminal in entire test device；Transmitting
The millimeter wave direction that antenna is used to export signal source is tested insulator transmitting；The reception antenna is for receiving transmitted through insulator
Millimeter wave and the millimeter wave transmitted through insulator received is transmitted in receiver；The receiver is for receiving through saturating
The millimeter wave of millimeter wave and transmitting antenna transmitting after penetrating and the millimeter that millimeter wave characteristic value therein is transmitted to analysis machine
Wave parameter treatment region；The infrared image when thermal infrared imager is used to shoot composite insulator live line work and answering shooting
Infrared image delivery when insulator charged work is closed to the IR parameters treatment region of analysis machine.
As a kind of preferred embodiment of the present invention, millimeter wave parameter processing area includes polarization parameter extraction module, width
Value parameter extraction module and phase parameter extraction module, the polarization parameter extraction module include for extract transmitted wave
The millimeter wave characteristic value of polarization characteristic；The magnitude parameters extraction module is used to extract the milli of the amplitude-frequency characteristic for including of transmitted wave
Metric wave characteristic value；The phase parameter extraction module is used to extract the millimeter wave characteristic value of the phase property for including of transmitted wave.
As the present invention a kind of preferred embodiment, the IR parameters treatment region include reservoir, small-kernel convolutions device and
Digital signal microprocessor, the reservoir are used to store the picture of thermal infrared imager and it are transferred to small-kernel convolutions device；Institute
Small-kernel convolutions device is stated for carrying out image denoising, image enhancement, image segmentation, greyscale transformation technical finesse to infrared image and inciting somebody to action
The gray-scale map of generation is sent to digital signal microprocessor；What the digital signal microprocessor was used to send small-kernel convolutions device
Gray-scale map extraction characteristic parameter obtains temperature profile value.
The present invention realizes following advantageous effect：
When the decline of sheath adhesive property occurs in composite insulator, steam intrusion can make insulator sheath internal wetted, cause multiple
It closes insulator Leakage Current and silastic material dielectric loss increases, increase insulator calorific value, wherein rejected region calorific value
It significantly increases, temperature is apparently higher than normal insulation subregion temperature, and such defect can use IR thermal imaging inspection method
Detection.When there is micro-crack defect or early defect in composite insulator, and fever is not notable, the inspection of Main Basiss millimeter wave detection method
Go out, when millimeter wave penetrates early defect or micro-crack, can be considered and propagated in dielectric property material internal unevenly distributed, this will
So that millimeter wave is generated refraction and reflection, by analyzing the features such as amplitude, phase, polarization of transmitted wave, can detect that micro-crack and
Early defect；Compared to other detection methods, this method is capable of detecting when the tiny defects such as the micro-crack of composite insulator
With boundary planar defect, solve that composite insulator detection result for a long time is undesirable, defect type is incomplete asks for detection
Topic.The present invention realizes the non-contact detection to composite insulator, significantly reduces the working strength and safety of testing staff
Risk improves Faulty insulator recall rate, and powerful guarantee is provided for the safe operation of power grid.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1, which is that a kind of composite insulator provided by the invention is infrared, combines intelligent detecting method flow chart with millimeter wave；
Fig. 2 is a kind of infrared structural schematic diagram for combining intelligent detection device with millimeter wave of composite insulator provided by the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
With reference to shown in figure 1-2, Fig. 1 is that a kind of composite insulator provided by the invention is infrared combines intelligent measurement with millimeter wave
Method flow diagram；Fig. 2 is a kind of infrared structure for combining intelligent detection device with millimeter wave of composite insulator provided by the invention
Schematic diagram.
Specifically, combining intelligent detecting method, the side with millimeter wave the present embodiment provides a kind of composite insulator is infrared
Method includes the following steps：
S1, the infrared image that composite insulator is shot by thermal infrared imager；
S2, image denoising, segmentation and binary morphology image procossing are carried out to obtained infrared image, and obtained compound in image
Insulator region；
S3, the gray value of the step S2 images obtained is fitted, and obtains composite insulator temperature profile parameter；
S4, transmission detection is carried out to composite insulator using millimeter wave detecting instrument, obtains the amplitude-frequency comprising transmission signal, phase
And the millimeter wave transmission curve of polarization characteristic；
The characteristic spectra that S5, selective transmission formula millimeter wave detect extracts millimeter wave characteristic value from millimeter wave transmission curve, and will carry
The millimeter wave characteristic value taken carries out comprehensive characteristics screening together with temperature profile value, obtains that insulator is infrared and millimeter wave characteristic ginseng
Number；
S6, characteristic parameter is imported to the deterioration insulation for considering the complicated factors such as ambient temperature and humidity, filth and damp degree and establishing
In sub- intelligent recognition model, diagnostic result is obtained, determines type and the position of defect.
A kind of composite insulator is infrared to combine intelligent detection device with millimeter wave, including mm-wave signal source, isolator, declines
Subtract device, directional coupler, transmitting antenna, reception antenna, receiver, thermal infrared imager, analysis machine, the analysis machine is by millimeter wave
Parameter processing area, IR parameters treatment region, characteristic value Integrated Selection module, Faulty insulator intelligent recognition model and output and can
View apparatus forms；The mm-wave signal source is transmitted for emitting frequency conversion millimeter wave by isolator, attenuator, directional coupler
To transmitting antenna；The isolator be used for according to linear optical coupling isolation principle by input signal carry out conversion output and with input
Millimeter-wave signal is isolated；The attenuator is used to adjust the size of output millimeter-wave signal and improves the impedance matching of access；Institute
Directional coupler is stated for isolation, separation and the mixing of signal and ensures the isolation of transmitting terminal in entire test device；Transmitting
The millimeter wave direction that antenna is used to export signal source is tested insulator transmitting；The reception antenna is for receiving transmitted through insulator
Millimeter wave and the millimeter wave transmitted through insulator received is transmitted in receiver；The receiver is for receiving through saturating
The millimeter wave of millimeter wave and transmitting antenna transmitting after penetrating and the millimeter that millimeter wave characteristic value therein is transmitted to analysis machine
Wave parameter treatment region；The infrared image when thermal infrared imager is used to shoot composite insulator live line work and answering shooting
Infrared image delivery when insulator charged work is closed to the IR parameters treatment region of analysis machine.
As a kind of preferred embodiment of the present invention, millimeter wave parameter processing area includes polarization parameter extraction module, width
Value parameter extraction module and phase parameter extraction module, the polarization parameter extraction module include for extract transmitted wave
The millimeter wave characteristic value of polarization characteristic；The magnitude parameters extraction module is used to extract the milli of the amplitude-frequency characteristic for including of transmitted wave
Metric wave characteristic value；The phase parameter extraction module is used to extract the millimeter wave characteristic value of the phase property for including of transmitted wave.
As the present invention a kind of preferred embodiment, the IR parameters treatment region include reservoir, small-kernel convolutions device and
Digital signal microprocessor, the reservoir are used to store the picture of thermal infrared imager and it are transferred to small-kernel convolutions device；Institute
Small-kernel convolutions device is stated for carrying out image denoising, image enhancement, image segmentation, greyscale transformation technical finesse to infrared image and inciting somebody to action
The gray-scale map of generation is sent to digital signal microprocessor；What the digital signal microprocessor was used to send small-kernel convolutions device
Gray-scale map extraction characteristic parameter obtains temperature profile value.
Specifically, in this step S1, mm-wave signal source emits the millimeter wave of frequency conversion, passes through isolator, attenuator, orientation
Coupler transfer emits the millimeter-wave signal received to transmitting antenna, then by transmitting antenna, and millimeter wave is through tested insulator
Afterwards, it is received by reception antenna, the millimeter wave transmission signal received is sent in receiver by reception antenna, and transmitting antenna also will
The millimeter-wave signal received is transmitted to analysis machine, thermal infrared imager shooting by initial millimeter-wave signal transmitter-receiver, receiver
After composite insulator infrared image, it is transmitted to analysis machine.
Wherein, the mm-wave signal source provides variable-frequency millimeter-wave signal, precision 0.1MHz；Isolator, decaying
The conduction device of device and directional coupler as millimeter-wave signal plays the role of linking up mm-wave signal source and transmitting antenna.
Wherein, isolator is according to linear optical coupling isolation principle, and input signal is carried out conversion output, and with the millimeter of input
Wave signal isolation.
Wherein, attenuator is used to adjust the size of output millimeter-wave signal, improves the impedance matching of access；Directional coupler
For the isolation, separation and mixing of signal, ensure the isolation of transmitting terminal in entire test device.
Wherein, the millimeter wave direction that transmitting antenna can export signal source is tested insulator transmitting, and reception antenna receives saturating
The millimeter wave of insulator was penetrated, and was transmitted in receiver, due to changing the polarity of millimeter wave, the hair of different polarization directions
It penetrates antenna and reception antenna can be customized or oneself design.
Wherein, receiver receives the millimeter wave that the millimeter after transmission involves transmitting antenna transmitting, by millimeter wave therein
Characteristic value is transmitted to analysis machine millimeter wave parameter processing area and carries out the extraction of millimeter wave characteristic parameter and analyze in next step.
Wherein, infrared image when thermal infrared imager shooting composite insulator live line work, and transmit it to analysis machine
IR parameters treatment region.
Specifically, in step S2-S3, analysis machine is comprehensive by millimeter wave parameter processing area, IR parameters treatment region, characteristic value
It closes screening module, Faulty insulator intelligent recognition model and output and visual device composition, the stored device of infrared image is transmitted to
Small-kernel convolutions device carries out binary morphology processing etc., obtains gray level image, gray-scale map, which is transmitted to digital signal microprocessor, to be carried
Take temperature profile value.
Wherein, in the IR parameters treatment region of analysis machine, memory can store the picture of thermal infrared imager and pass it
It is defeated by small-kernel convolutions device, if shooting infrared image speed is more than image processing speed, the picture of shooting is stored, is waited for
Previous image procossing is completed, this part will not make any processing to the infrared image of shooting.
Wherein, small-kernel convolutions device is used to carry out image denoising, image enhancement, image segmentation, greyscale transformation to infrared image
Equal technical finesses.
Wherein, digital signal microprocessor is used to, to the image zooming-out characteristic parameter sent by small-kernel convolutions device, obtain
Temperature profile value, this part do not do any more changed handling to picture essence, data transmitter are sent to after Extracting temperature characteristic value
In.
Wherein, characteristic value Integrated Selection module sieves the temperature profile value and millimeter wave characteristic value of extraction in analysis machine
Choosing and fitting, obtain infrared and millimeter wave characteristic parameter and by importings Faulty insulator intelligent recognition model, obtain judgement tie
By, pass through output and visual device output display and print result
Specifically, in step S4-S6, millimeter wave parameter processing area extraction transmitted wave in analysis machine comprising amplitude-frequency, phase,
The millimeter wave characteristic value of polarization characteristic is led to after analysis machine carries out comprehensive characteristics screening to temperature profile value and millimeter wave characteristic value
It crosses and analyzes infrared and millimeter wave characteristic parameter, you can judgement composite insulator deterioration condition determines defect size and position,
Result is shown by output and visual device and prints examining report.
As a kind of preferred embodiment of the present invention, the Infrared Thermogram that the step S1 is obtained should be less than by heat sensitivity
0.03 DEG C of professional infrared video camera shooting, and reference object is the composite insulator in live line work.
As a kind of preferred embodiment of the present invention, the image processing techniques of the method step S2 should include to original image
Noise reduction, gray processing processing, and accurately extract compound inslation subregion by image processing techniques such as form binaryzations.
It is bad by infrared and millimeter wave characteristic parameter comprehensive judgement composite insulator as a kind of preferred embodiment of the present invention
Change situation；Defect is detected by the polarization characteristic of millimeter-wave signal, detection of the not like-polarized millimeter wave to micro-crack
Effect will produce different effect.
As a kind of preferred embodiment of the present invention, defect is detected by the phase characteristic of millimeter-wave signal, when milli
Phase can change when metric wave passes through different medium, and determine flaw size according to initial and transparent millimeterwave phase information,
And composite insulator inside or face crack are intuitively shown by mm-wave imaging.
As a kind of preferred embodiment of the present invention, according to complicated factors such as consideration ambient temperature and humidity, filth and damp degrees
And the Faulty insulator intelligent recognition model established, infrared and millimeter wave characteristic parameter is analyzed, feelings are deteriorated to obtain insulator
Condition and defect position.
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field
Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.All bases
Equivalent changes or modifications made by spirit of the invention, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of composite insulator is infrared to combine intelligent detecting method with millimeter wave, which is characterized in that the method includes following
Step：
S1, the infrared image that composite insulator is shot by thermal infrared imager；
S2, image denoising, segmentation and binary morphology image procossing are carried out to obtained infrared image, and obtained compound in image
Insulator region；
S3, the gray value of the step S2 images obtained is fitted, and obtains composite insulator temperature profile parameter；
S4, transmission detection is carried out to composite insulator using millimeter wave detecting instrument, obtains the amplitude-frequency comprising transmission signal, phase
And the millimeter wave transmission curve of polarization characteristic；
The characteristic spectra that S5, selective transmission formula millimeter wave detect extracts millimeter wave characteristic value from millimeter wave transmission curve, and will carry
The millimeter wave characteristic value taken carries out comprehensive characteristics screening together with temperature profile value, obtains that insulator is infrared and millimeter wave characteristic ginseng
Number；
S6, characteristic parameter is imported to the Faulty insulator for considering ambient temperature and humidity, filth and damp degree complicated factor and establishing
In intelligent recognition model, diagnostic result is obtained, determines type and the position of defect.
2. a kind of composite insulator according to claim 1 is infrared to combine intelligent detecting method with millimeter wave, feature exists
In the professional infrared video camera that the Infrared Thermogram that the step S1 is obtained should be by heat sensitivity less than 0.03 DEG C is shot, and is clapped
It is the composite insulator in live line work to take the photograph object.
3. a kind of composite insulator according to claim 1 is infrared to combine intelligent detecting method with millimeter wave, feature exists
In the image processing techniques of the method step S2 should include handling to noise reduction, the gray processing of original image, and passing through form two-value
Change image processing techniques and accurately extracts compound inslation subregion.
4. a kind of composite insulator according to claim 1 is infrared to combine intelligent detecting method with millimeter wave, feature exists
In passing through infrared and millimeter wave characteristic parameter comprehensive judgement composite insulator deterioration condition；It is special by the polarization of millimeter-wave signal
Property detects defect, and not like-polarized millimeter wave will produce different effect to the detection result of micro-crack.
5. a kind of composite insulator according to claim 4 is infrared to combine intelligent detecting method with millimeter wave, feature exists
In, defect is detected by the phase characteristic of millimeter-wave signal, when millimeter wave pass through different medium when phase can become
Change, and flaw size is determined according to initial and transparent millimeterwave phase information, and is intuitively shown by mm-wave imaging compound exhausted
Edge inside or face crack.
6. a kind of composite insulator according to claim 5 is infrared to combine intelligent detecting method with millimeter wave, feature exists
In, the Faulty insulator intelligent recognition model established according to consideration ambient temperature and humidity, filth and damp degree complicated factor, point
Infrared and millimeter wave characteristic parameter is analysed, to obtain insulator deterioration condition and defect position.
7. a kind of composite insulator is infrared to combine intelligent detection device, including mm-wave signal source, isolator, decaying with millimeter wave
Device, directional coupler, transmitting antenna, reception antenna, receiver, thermal infrared imager, analysis machine, which is characterized in that the analysis
Machine is by millimeter wave parameter processing area, IR parameters treatment region, characteristic value Integrated Selection module, Faulty insulator intelligent recognition model
With output and visual device composition；The mm-wave signal source passes through isolator, attenuator, orientation for emitting frequency conversion millimeter wave
Coupler transfer is to transmitting antenna；The isolator is used to that input signal to be carried out conversion output according to linear optical coupling isolation principle
And it is isolated with the millimeter-wave signal of input；The attenuator is used to adjust the size of output millimeter-wave signal and improves the resistance of access
Anti- matching；The directional coupler for signal isolation, separation and mixing and ensure transmitting terminal in entire test device every
From degree；The millimeter wave direction that transmitting antenna is used to export signal source is tested insulator transmitting；The reception antenna is for receiving
It penetrated the millimeter wave of insulator and the millimeter wave transmitted through insulator received was transmitted in receiver；The receiver is used
It is transmitted to point in the millimeter wave for receiving millimeter wave after transmission and transmitting antenna transmitting and by millimeter wave characteristic value therein
The millimeter wave parameter processing area of analysis machine；The infrared image when thermal infrared imager is used to shoot composite insulator live line work is simultaneously
Infrared image delivery when by the composite insulator live line work of shooting to analysis machine IR parameters treatment region.
8. a kind of composite insulator according to claim 7 is infrared to combine intelligent detection device with millimeter wave, feature exists
In millimeter wave parameter processing area includes polarization parameter extraction module, magnitude parameters extraction module and phase parameter extraction
Module, the polarization parameter extraction module are used to extract the millimeter wave characteristic value of the polarization characteristic for including of transmitted wave；The width
Value parameter extraction module is used to extract the millimeter wave characteristic value of the amplitude-frequency characteristic for including of transmitted wave；The phase parameter extracts mould
Block is used to extract the millimeter wave characteristic value of the phase property for including of transmitted wave.
9. a kind of composite insulator according to claim 7 is infrared to combine intelligent detection device with millimeter wave, feature exists
In the IR parameters treatment region includes reservoir, small-kernel convolutions device and digital signal microprocessor, and the reservoir is used for
It stores the picture of thermal infrared imager and it is transferred to small-kernel convolutions device；The small-kernel convolutions device to infrared image for carrying out figure
As denoising, image enhancement, image segmentation, greyscale transformation technical finesse and the gray-scale map of generation is sent to digital signal microprocessor
Device；The digital signal microprocessor is used to obtain temperature profile to the gray-scale map extraction characteristic parameter that small-kernel convolutions device is sent
Value.
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| CN111856190A (en) * | 2020-07-29 | 2020-10-30 | 国网河南省电力公司新乡供电公司 | Composite insulator defect detection method, device, equipment and system |
| CN111965214A (en) * | 2020-07-09 | 2020-11-20 | 国网浙江省电力有限公司电力科学研究院 | Method and system for judging heating defects of composite insulator of overhead line |
| CN114577853A (en) * | 2022-05-05 | 2022-06-03 | 国网浙江省电力有限公司电力科学研究院 | Automatic judging method for heating defect of composite insulator |
| CN115326880A (en) * | 2022-07-25 | 2022-11-11 | 广西电网有限责任公司北海供电局 | Composite insulator heating defect judgment method based on infrared image |
| CN115620211A (en) * | 2022-12-06 | 2023-01-17 | 广东祥利科技有限公司 | Performance data processing method and system of flame-retardant low-smoke halogen-free sheath |
| CN116183621A (en) * | 2022-09-16 | 2023-05-30 | 湖南海电电瓷电器有限公司 | Porcelain insulator quality detection method and system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110672A1 (en) * | 2003-10-10 | 2005-05-26 | L-3 Communications Security And Detection Systems, Inc. | Mmw contraband screening system |
| CN203011539U (en) * | 2012-11-08 | 2013-06-19 | 广东电网公司佛山供电局 | High-precision insulator contamination brightness temperature detector |
| CN103353507A (en) * | 2013-06-20 | 2013-10-16 | 国家电网公司 | Automatic insulator flaw detection instrument and method |
| CN104267063A (en) * | 2014-10-10 | 2015-01-07 | 国家电网公司 | Low-value insulator detection method based on infrared thermography |
| CN104280072A (en) * | 2014-10-21 | 2015-01-14 | 华北电力大学（保定） | Insulator dirt detecting method and device |
| CN104568991A (en) * | 2014-12-18 | 2015-04-29 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Detection method for defects of compound insulator, equipment and system |
| CN204758823U (en) * | 2015-05-17 | 2015-11-11 | 深圳市一体太赫兹科技有限公司 | Fuse image device that infrared temperature measurement and millimeter wave detected |
| CN106596579A (en) * | 2016-11-15 | 2017-04-26 | 同济大学 | Insulator contamination condition detection method based on multispectral image information fusion |
-
2018
- 2018-06-21 CN CN201810641985.4A patent/CN108760814A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110672A1 (en) * | 2003-10-10 | 2005-05-26 | L-3 Communications Security And Detection Systems, Inc. | Mmw contraband screening system |
| CN203011539U (en) * | 2012-11-08 | 2013-06-19 | 广东电网公司佛山供电局 | High-precision insulator contamination brightness temperature detector |
| CN103353507A (en) * | 2013-06-20 | 2013-10-16 | 国家电网公司 | Automatic insulator flaw detection instrument and method |
| CN104267063A (en) * | 2014-10-10 | 2015-01-07 | 国家电网公司 | Low-value insulator detection method based on infrared thermography |
| CN104280072A (en) * | 2014-10-21 | 2015-01-14 | 华北电力大学（保定） | Insulator dirt detecting method and device |
| CN104568991A (en) * | 2014-12-18 | 2015-04-29 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Detection method for defects of compound insulator, equipment and system |
| CN204758823U (en) * | 2015-05-17 | 2015-11-11 | 深圳市一体太赫兹科技有限公司 | Fuse image device that infrared temperature measurement and millimeter wave detected |
| CN106596579A (en) * | 2016-11-15 | 2017-04-26 | 同济大学 | Insulator contamination condition detection method based on multispectral image information fusion |
Non-Patent Citations (2)
| Title |
|---|
| 李国新 等: "《火工品实验与测试技术》", 31 August 1998, 北京理工大学出版社 * |
| 谢文和: "《传感技术及其应用》", 31 July 2004, 高等教育出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965214A (en) * | 2020-07-09 | 2020-11-20 | 国网浙江省电力有限公司电力科学研究院 | Method and system for judging heating defects of composite insulator of overhead line |
| CN111856190A (en) * | 2020-07-29 | 2020-10-30 | 国网河南省电力公司新乡供电公司 | Composite insulator defect detection method, device, equipment and system |
| CN114577853A (en) * | 2022-05-05 | 2022-06-03 | 国网浙江省电力有限公司电力科学研究院 | Automatic judging method for heating defect of composite insulator |
| CN115326880A (en) * | 2022-07-25 | 2022-11-11 | 广西电网有限责任公司北海供电局 | Composite insulator heating defect judgment method based on infrared image |
| CN116183621A (en) * | 2022-09-16 | 2023-05-30 | 湖南海电电瓷电器有限公司 | Porcelain insulator quality detection method and system |
| CN116183621B (en) * | 2022-09-16 | 2024-03-08 | 湖南海电电瓷电器有限公司 | Porcelain insulator quality detection method and system |
| CN115620211A (en) * | 2022-12-06 | 2023-01-17 | 广东祥利科技有限公司 | Performance data processing method and system of flame-retardant low-smoke halogen-free sheath |
| CN115620211B (en) * | 2022-12-06 | 2023-03-21 | 广东祥利科技有限公司 | Performance data processing method and system of flame-retardant low-smoke halogen-free sheath |
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