CN109613401A - A kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost - Google Patents
A kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost Download PDFInfo
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- CN109613401A CN109613401A CN201910099322.9A CN201910099322A CN109613401A CN 109613401 A CN109613401 A CN 109613401A CN 201910099322 A CN201910099322 A CN 201910099322A CN 109613401 A CN109613401 A CN 109613401A
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- 238000001931 thermography Methods 0.000 claims abstract description 59
- 238000007405 data analysis Methods 0.000 claims abstract description 47
- 238000010891 electric arc Methods 0.000 claims abstract description 45
- 238000004458 analytical method Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000013135 deep learning Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 8
- 230000007257 malfunction Effects 0.000 claims description 7
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- 238000005516 engineering process Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 238000012549 training Methods 0.000 claims description 3
- 206010037660 Pyrexia Diseases 0.000 claims description 2
- 238000010801 machine learning Methods 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The present invention proposes a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost, including electric arc thermal imagery data acquisition module, Data Analysis Services module；Electric arc thermal imagery data acquisition module includes infrared thermal imaging module, data memory module and data communication module；Infrared thermal imaging module is using multiple infrared thermovision modules around power cable as front-end probe；Front-end probe carries out thermal imaging to cable to acquire electric cable heating data and store in data memory module；Electric cable heating data are uploaded to Data Analysis Services module by data memory module；Data Analysis Services module generates thermal imaging picture according to electric cable heating data and carries out enhancing processing to picture, and the visible light picture of treated picture and the partial cables is blended to generate analysis chart；Data Analysis Services module analyzes to carry out arc phenomenon assessment to cable analysis chart；The present invention is able to achieve the timely early warning of real-time monitoring and failure to power cable arc fault.
Description
Technical field
The present invention relates to infrared thermovision technical field, especially a kind of cable electric arc based on the infrared thermovision of intelligence low cost
Fault early warning system.
Background technique
With the development of economy, nowadays in the intermediate distribution system of city, underground power cable is widely used,
But since there are insulating layers on the construction of cable, with going deep into for time is used, the insulating capacity of insulating layer can degenerate, dielectric level
Decline, Leakage Current increase, eventually lead to power cable and break down.The harm generated when power cable breaks down is huge,
It probably will lead to power failure, cause electric system to be paralysed, the loss for being difficult to estimate is caused to city.Power cable once occurs
Failure, investigation failure is very difficult, expends a large amount of manpower, material resources and financial resources, and therefore, cable electric arc monitors early warning system ten on-line
Divide necessity.
In addition to external force destructive malfunction, when power cable breaks down, arc fault is usually first appeared as.Electric arc is a kind of
High temperature, highly conductive free gas, power cable can discharge a large amount of heat when generating arc fault, may ignite around easily
Explosive material is fired, causes fire even to explode, so as to cause the consequence estimated is difficult to.
What cable arc fault detection at this stage generally used is all contact-type detection, and higher cost, price
It is expensive, it is difficult to realize a large amount of deployment.And monitoring device at this stage only just can after arc fault occurs for cable substantially
Triggering alarm can not carry out prediction and alarm before arc fault occurs for power cable, very likely result in cable rescue so not
Cause a large amount of economic loss in time.
Infrared thermovision technology utilizes the detectivity of target object infra-red radiation, collects object temperature data and generates temperature point
Cloth image, then infrared emanation image is converted by temperature profile by means such as certain viewpoint conversions, compared to single-point
The overall region Temperature Distribution in detector field of view may be implemented in temperature sensing, infrared thermal imaging.
Summary of the invention
The present invention proposes a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost, is able to achieve to electricity
The real-time monitoring and the timely early warning of failure of power cable arc fault.
The present invention uses following technical scheme.
A kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost, the early warning system includes electric arc
Thermal-image data acquisition module, Data Analysis Services module；The electric arc thermal imagery data acquisition module include infrared thermal imaging module,
Data memory module and data communication module；The infrared thermal imaging module is with multiple infrared heat around power cable
Depending on module as front-end probe；The front-end probe carries out comprehensive thermal imaging to cable to acquire electric cable heating data and store
In data memory module；Electric cable heating data are uploaded to Data Analysis Services mould through wireless network by the data memory module
Block；The Data Analysis Services module generates thermal imaging picture according to electric cable heating data and carries out enhancing processing to picture, and
The visible light picture of treated picture and the partial cables is blended to generate analysis chart；Data Analysis Services module to point
Analysis figure is analyzed to carry out arc phenomenon assessment to cable.
The arc phenomenon assessment includes that assessment power cable whether there is whether electric arc, assessment cable electric arc are failure electricity
Arc, the probability of happening for assessing cable future malfunction electric arc.
The cable is buried cable.
The visible light picture of the cable is the cable photo shot when the buried construction of cable.
The wireless network is GPRS telecommunications network.
The infrared thermovision module is the infrared thermovision module of low resolution.
The Data Analysis Services module carries out image procossing to thermal imaging picture with resolution enhancement module；The resolution
Rate enhances module and is based on deep learning technology, the thermal imaging picture of low resolution can be converted to high-resolution thermograph
Piece.
The Data Analysis Services module further includes Realtime Alerts module；When assessment power cable is there are when arc fault,
The Data Analysis Services module positions arc fault according to analysis chart and position occurs, and with Realtime Alerts module to staff
Issue fault warning.
The assessment power cable with the presence or absence of electric arc, whether assessment cable electric arc is the method for fault electric arc includes following
Step；
A1, a large amount of cable thermal imaging picture of acquisition；The normal electricity of cable thermography, generation when thermal imaging picture includes no electric arc
The cable thermography of cable thermography and generation arc fault when arc phenomenon；
A2, be based on deep learning algorithm, according to the cable thermal imaging picture acquired in A1 step to data analysis and processing module into
Row training, makes Data Analysis Services module have deep learning network frame；
A3, Data Analysis Services module image procossing is carried out to the cable thermal imaging picture that acquires in real time with promoted its resolution ratio and
Clarity, and thermal imaging picture after processing is merged with the visible light picture of the position cable, generate analysis chart；
A4, Data Analysis Services module carry out analyzing to identify cable electric arc through deep learning network frame to analysis chart,
Judge whether cable generates electric arc and whether cable occurs arc fault.
The method of probability of happening of the assessment cable future malfunction electric arc is；Data Analysis Services module is based on engineering
Algorithm is practised, the history heating power data of power cable is analyzed and processed, the prediction thermography of power cable is generated, in conjunction with assessment
The set condition value of prediction, to predict that thermography further predicts whether power cable can occur arc fault.
The beneficial effects of the present invention are: the infrared thermovision technology of low resolution is introduced into the event of power cable electric arc by the present invention
Barrier detection；The heating power data of cable is analyzed in time, judges whether cable generates electric arc and whether arc fault occurs,
Historical data is analyzed based on machine learning algorithm simultaneously, the prediction to cable heating power is realized, predicts arc fault
A possibility that, coherence check work is made in time, provides reliable guarantee for the intelligent management of administrative department.
In the present invention, the front-end probe carries out comprehensive thermal imaging to cable to acquire electric cable heating data and store in
Data memory module；Electric cable heating data are uploaded to Data Analysis Services module through wireless network by the data memory module；
The Data Analysis Services module generates thermal imaging picture according to electric cable heating data and carries out enhancing processing to picture；The design
In, front-end probe only generates data, and thermal imaging picture is drawn by Back end data analysis and processing module according to front-end probe data, from
And the storage pressure of data memory module and the bandwidth pressure of wireless network transmissions are substantially reduced, in wireless network transmissions,
Compression algorithm can be used and further reduce volume of transmitted data, allow slow network as GPRS that can also carry the biography of mass data
It is defeated.
Detailed description of the invention
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Attached drawing 1 is the principle of the present invention schematic diagram；
Attached drawing 2 is the workflow schematic diagram of Data Analysis Services module of the present invention；
In figure: 1- electric arc thermal imagery data acquisition module；2- Data Analysis Services module.
Specific embodiment
As shown in Figs. 1-2, a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost, the early warning
System includes electric arc thermal imagery data acquisition module, Data Analysis Services module；The electric arc thermal imagery data acquisition module includes red
Outer thermal imaging module, data memory module and data communication module；The infrared thermal imaging module is set to electric power electricity with multiple
Infrared thermovision module around cable is as front-end probe；The front-end probe carries out comprehensive thermal imaging to cable to acquire electricity
Cable fever data simultaneously store in data memory module；Electric cable heating data are uploaded to number through wireless network by the data memory module
According to analysis and processing module；The Data Analysis Services module generates thermal imaging picture according to electric cable heating data and carries out to picture
Enhancing processing, and the visible light picture of treated picture and the partial cables is blended to generate analysis chart；Data analysis
Processing module analyzes to carry out arc phenomenon assessment to cable analysis chart.
The arc phenomenon assessment includes that assessment power cable whether there is whether electric arc, assessment cable electric arc are failure electricity
Arc, the probability of happening for assessing cable future malfunction electric arc.
The cable is buried cable.
The visible light picture of the cable is the cable photo shot when the buried construction of cable.
The wireless network is GPRS telecommunications network.
The infrared thermovision module is the infrared thermovision module of low resolution.
The Data Analysis Services module carries out image procossing to thermal imaging picture with resolution enhancement module；The resolution
Rate enhances module and is based on deep learning technology, the thermal imaging picture of low resolution can be converted to high-resolution thermograph
Piece.
The Data Analysis Services module further includes Realtime Alerts module；When assessment power cable is there are when arc fault,
The Data Analysis Services module positions arc fault according to analysis chart and position occurs, and with Realtime Alerts module to staff
Issue fault warning.
The assessment power cable with the presence or absence of electric arc, whether assessment cable electric arc is the method for fault electric arc includes following
Step；
A1, a large amount of cable thermal imaging picture of acquisition；The normal electricity of cable thermography, generation when thermal imaging picture includes no electric arc
The cable thermography of cable thermography and generation arc fault when arc phenomenon；
A2, be based on deep learning algorithm, according to the cable thermal imaging picture acquired in A1 step to data analysis and processing module into
Row training, makes Data Analysis Services module have deep learning network frame；
A3, Data Analysis Services module image procossing is carried out to the cable thermal imaging picture that acquires in real time with promoted its resolution ratio and
Clarity, and thermal imaging picture after processing is merged with the visible light picture of the position cable, generate analysis chart；
A4, Data Analysis Services module carry out analyzing to identify cable electric arc through deep learning network frame to analysis chart,
Judge whether cable generates electric arc and whether cable occurs arc fault.
The method of probability of happening of the assessment cable future malfunction electric arc is；Data Analysis Services module is based on engineering
Algorithm is practised, the history heating power data of power cable is analyzed and processed, the prediction thermography of power cable is generated, in conjunction with assessment
The set condition value of prediction, to predict that thermography further predicts whether power cable can occur arc fault.
Embodiment:
Multiple infrared thermovision modules of 8*8 low resolution around power cable are installed to visit as front end at cable manhole
Head obtains cable heating power data and data storage by the power cable in omnidirectional shooting people's well in a storage module.
Electric cable heating data are uploaded to Data Analysis Services module through wireless network by data memory module；The data point
It analyses processing module and generates thermal imaging picture according to electric cable heating data, Data Analysis Services module is with resolution enhancement module to heat
Picture is imaged and carries out image procossing, the thermal imaging picture of low resolution is converted to high-resolution thermal imaging picture in order to same
Visible light cable picture (fine definition photo) fusion.
Data Analysis Services module blends the fine definition photo of treated picture and the partial cables to generate
Analysis chart；Data Analysis Services module analyzes to carry out arc phenomenon assessment to cable analysis chart.
Claims (10)
1. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost, it is characterised in that: the early warning system
System includes electric arc thermal imagery data acquisition module, Data Analysis Services module；The electric arc thermal imagery data acquisition module includes infrared
Thermal imaging module, data memory module and data communication module；The infrared thermal imaging module is set to power cable with multiple
The infrared thermovision module of surrounding is as front-end probe；The front-end probe carries out comprehensive thermal imaging to cable to acquire cable
Fever data simultaneously store in data memory module；Electric cable heating data are uploaded to data through wireless network by the data memory module
Analysis and processing module；The Data Analysis Services module generates thermal imaging picture according to electric cable heating data and increases to picture
Strength reason, and the visible light picture of treated picture and the partial cables is blended to generate analysis chart；At data analysis
Reason module analyzes to carry out arc phenomenon assessment to cable analysis chart.
2. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 1,
Be characterized in that: the arc phenomenon assessment includes that assessment power cable whether there is electric arc, whether assessment cable electric arc is failure
Electric arc, the probability of happening for assessing cable future malfunction electric arc.
3. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 2,
Be characterized in that: the cable is buried cable.
4. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 3,
Be characterized in that: the visible light picture of the cable is the cable photo shot when the buried construction of cable.
5. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 1,
Be characterized in that: the wireless network is GPRS telecommunications network.
6. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 1,
Be characterized in that: the infrared thermovision module is the infrared thermovision module of low resolution.
7. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 1,
Be characterized in that: the Data Analysis Services module carries out image procossing to thermal imaging picture with resolution enhancement module；Described point
Resolution enhances module and is based on deep learning technology, the thermal imaging picture of low resolution can be converted to high-resolution thermograph
Piece.
8. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 1,
Be characterized in that: the Data Analysis Services module further includes Realtime Alerts module；When assessment power cable is there are when arc fault,
The Data Analysis Services module positions arc fault according to analysis chart and position occurs, and with Realtime Alerts module to staff
Issue fault warning.
9. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 2,
Be characterized in that: it is described assessment power cable with the presence or absence of electric arc, assessment cable electric arc whether be fault electric arc method include with
Lower step；
A1, a large amount of cable thermal imaging picture of acquisition；The normal electricity of cable thermography, generation when thermal imaging picture includes no electric arc
The cable thermography of cable thermography and generation arc fault when arc phenomenon；
A2, be based on deep learning algorithm, according to the cable thermal imaging picture acquired in A1 step to data analysis and processing module into
Row training, makes Data Analysis Services module have deep learning network frame；
A3, Data Analysis Services module image procossing is carried out to the cable thermal imaging picture that acquires in real time with promoted its resolution ratio and
Clarity, and thermal imaging picture after processing is merged with the visible light picture of the position cable, generate analysis chart；
A4, Data Analysis Services module carry out analyzing to identify cable electric arc through deep learning network frame to analysis chart,
Judge whether cable generates electric arc and whether cable occurs arc fault.
10. a kind of cable arc fault early warning system based on the infrared thermovision of intelligence low cost according to claim 2,
Be characterized in that: the method for the probability of happening of the assessment cable future malfunction electric arc is；Data Analysis Services module is based on machine
Learning algorithm is analyzed and processed the history heating power data of power cable, generates the prediction thermography of power cable, in conjunction with commenting
The set condition value of prediction is estimated, to predict that thermography further predicts whether power cable can occur arc fault.
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| CN110765858A (en) * | 2019-09-14 | 2020-02-07 | 杭州拓深科技有限公司 | Non-invasive fault arc monitoring method based on convolutional neural network |
| CN113950403A (en) * | 2019-06-11 | 2022-01-18 | 惠普发展公司，有限责任合伙企业 | Adaptive manufacturing simulation |
| US11888306B1 (en) | 2022-04-22 | 2024-01-30 | Amazon Technologies, Inc. | System for in-situ detection of electrical faults |
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| CN109613401B (en) | 2024-05-03 |
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