CN106710702A - Dual-purpose intelligent cable - Google Patents
Dual-purpose intelligent cable Download PDFInfo
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- CN106710702A CN106710702A CN201611236024.2A CN201611236024A CN106710702A CN 106710702 A CN106710702 A CN 106710702A CN 201611236024 A CN201611236024 A CN 201611236024A CN 106710702 A CN106710702 A CN 106710702A
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 238000001069 Raman spectroscopy Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 3
- -1 Polyethylene Polymers 0.000 claims 1
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- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 description 4
- 239000004703 cross-linked polyethylene Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
- G01D5/35354—Sensor working in reflection
- G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
- G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
- G01K11/322—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres using Brillouin scattering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
Abstract
The invention relates to a cable detection technology, and specifically relates to a dual-purpose intelligent cable. The dual-purpose intelligent cable comprises a three-core power cable. The characteristics lie in that the dual-purpose intelligent cable further comprises an optical fiber and a photoelectric conversion device connected with the optical fiber; the optical fiber is arranged at the center of the three-core power cable; the photoelectric conversion device comprises an optical module and an electric module; the optical module is connected with the optical fiber and used for transmitting light signals and receiving set scattered light signals; the electric module is connected with the optical module and used for converting the scattered light signals into electric signals and realizing storage and alarming; and the photoelectric conversion device is installed at an initial segment of the three-core power cable. The intelligent cable realizes temperature measurement and stress detection for each point of the three-core power cable, the built-in optical fiber is adopted to eliminate external interference, the optical fiber is installed at the center of the three-core cable, and the uniformity degree and the accuracy of temperature and stress measurement are improved. Meanwhile, the service life of the optical fiber is prolonged. The dual-purpose intelligent cable provides an implementation basis for the power cable on the aspects of fault detection, current-carrying capacity control and anti-theft alarming.
Description
Technical field
The invention belongs to cable detection technical field, more particularly to a kind of dual-purpose intelligent cable.
Background technology
Cable fault examination is mainly temperature detection and burglar alarm.Widely used technology has heat in temperature detection
Galvanic couple thermometric and optical fiber temperature-measurement.The principle of thermocouple temperature measurement is that the resistance of thermocouple can change with the change of temperature, with
The signal of temperature is converted to electric signal by this, and is measured.Thermocouple temperature measurement simple structure, cheap, technology maturation, but
Because thermocouple can only carry out point type thermometric, it is impossible to enter the on-line monitoring of trip temperature to whole piece cable run, so having certain
Limitation.Optical fiber have it is with low cost, by electromagnetic interference, small in volume, that certainty of measurement is high, be easy to lay etc. is excellent
Point, distributed optical fiber temperature measurement technology achieves that the circuit of logarithm kilometer carries out long term monitoring using an optical fiber, at this stage light
Laboratory stage being rested on fine cable for measuring temperature, practical application is less more.Existing optical fiber temperature-measurement cable is mainly to the joint of cable
Place detected, and by fibre optic installations in Exterior cable.It is primarily present problems with：
（1）Temperature of Power Cables raises main stand under load flow effect, and current-carrying capacity is raised can cause cable many places temperature to raise, only right
Cable connector part carries out thermometric and there is potential safety hazard；
（2）Power cable layer environment is complicated, and fibre optic installations easily cause to damage in Exterior cable to optical fiber physical arrangement；
（3）There is a plurality of cable power cable layer groove, fibre optic installations can be subject to other cables in Exterior cable measured temperature more
Temperature rise influences；
（4）Power cable is bent, then certainty of measurement can be caused to decline；
（5）The dual-use function of thermometric, burglar alarm can not be realized.
The content of the invention
External interference is eliminated using built-in fiber the purpose of the present invention is to propose to one kind, optical fiber is installed on three-core cable
Center, improves the uniformity coefficient and accuracy of measurement temperature and stress, can realize the temperature measuring of three core power cable each points
And the dual-purpose intelligent cable of stress detection.
To achieve the above object, the technical solution adopted by the present invention is：A kind of dual-purpose intelligent cable, including three core electric power electricity
Cable, it is characterised in that the photoelectric conversion device for also being connected including optical fiber and optical fiber；Optical fiber is arranged at three core power cable centers.
In above-mentioned dual-purpose intelligent cable, photoelectric conversion device includes optical module and electric module；Optical module and optical fiber phase
Even, for launching optical signal and receiving the scattered light signal of setting；Electric module is connected with optical module, for scattered light signal to be turned
Turning to electric signal realizes storage with alarm；Photoelectric conversion device is arranged on three core power cable the initial segments.
In above-mentioned dual-purpose intelligent cable, optical module includes the laser, the photo-coupler that are sequentially connected, and optical coupling
The first optical filter, the second optical filter connected on device；First optical filter is connected with optical fiber, the second optical filter and electric mould
Block is connected；Laser launches pulsed light, and photo-coupler realizes branch and the combining of light, and first, second optical filter can be selected
The incident light and scattering light of respective settings wavelength.
In above-mentioned dual-purpose intelligent cable, first, second optical filter is set using Raman scattering with Brillouin scattering,
For screening Stokes ratio signal, anti-Stokes scattering optical signal and Brillouin scattering optical signal.
In above-mentioned dual-purpose intelligent cable, electric module is sequentially connected the first amplifier, including the first photoelectric detector
One A/D sampling modules and the first SRAM module, the second photoelectric detector are sequentially connected the second amplifier, the 2nd A/D sampling modules
With the second SRAM module, the 3rd photoelectric detector is sequentially connected the 3rd amplifier, the 3rd A/D sampling modules, comparison module and report
Alert device；First, second and third photoelectric detector is connected with the second optical filter；First, second photoelectric detector is used to detect stoke
This scattered light signal and anti-Stokes scattering optical signal, and convert optical signal into voltage signal output, first and second amplifier
The voltage signal that will be received is exported after being amplified, and signal is carried out A/D conversions by first and second A/D sampling modules, and will output
It is stored in first and second SRAM module, for further calling；3rd photoelectric detector be used for detect Brillouin scattering optical signal,
And voltage signal output is converted optical signal into, and the voltage signal that the 3rd amplifier will be received is exported after being amplified, and the 3rd
Signal is carried out A/D conversions and output feeding comparison module by A/D sampling modules, and comparison module is used to compare output voltage values and set
The magnitude relationship of definite value, if output voltage values are more than setting value, starts alarm.
In above-mentioned dual-purpose intelligent cable, three core power cables include that wire, filler, optical fiber place groove.
In above-mentioned dual-purpose intelligent cable, wire includes：Core, internal shield, megohmite insulant, external shielding layer, protection
Set and metal screen layer；Core selects copper cash or aluminum steel, internal shield to be made up of semi-conducting material, is surrounded on core surface, with
Core equipotential, prevents from producing shelf depreciation between core and megohmite insulant, and megohmite insulant uses crosslinked polyethylene, is surrounded on line
Outside core and internal shield, external shielding layer is made up of semi-conducting material, is surrounded on megohmite insulant surface, is prevented megohmite insulant and is protected
Shelf depreciation is produced between sheath, metal screen layer is surrounded on outside protective case, will leak out electric current and access grounded screen；Filler
From non-woven fabrics；Optical fiber places the axle center that groove is arranged at three core power cables.
In above-mentioned dual-purpose intelligent cable, optical fiber is positioned over optical fiber and places groove center.
The beneficial effects of the invention are as follows：The temperature measuring and stress detection of three core power cable each points are realized, using interior
Put optical fiber and eliminate external interference, optical fiber is installed on three-core cable center, improve the uniformity coefficient of measurement temperature and stress
With accuracy.The service life of optical fiber is improved simultaneously.To power cable fault detection, current-carrying capacity control, burglar alarm aspect
Foundation is realized in offer.
Brief description of the drawings
Fig. 1 is the external structure schematic diagram of one embodiment of the invention；
Fig. 2 is the sectional view of one embodiment of the invention；
Fig. 3 is the internal structure schematic diagram of one embodiment of the invention；
Wherein, the core power cables of 1- tri-, 2- optical fiber, 3- photoelectric conversion devices, 4- optical modules, 5- electricity modules, 6- wires, 7- fillings
Material, 8- optical fiber places groove, 61- cores, 62- internal shields, 63- megohmite insulants, 64- external shielding layers, 65- protective cases, 66-
Metal screen layer.
Specific embodiment
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from start to finish
As element or the element with same or like function.Below with reference to Description of Drawings embodiment be it is exemplary, only
For explaining the present invention, and it is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing different structure of the invention.For letter
Change disclosure of the invention, hereinafter the part and setting to specific examples are described.They are only merely illustrative, and purpose is not
It is to limit the present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.This repetition be for
Simplify and clearly purpose, the relation between discussed various embodiments and/or setting itself is not indicated.Additionally, this hair
It is bright there is provided various specific techniques and the example of material, but those of ordinary skill in the art can be appreciated that other techniques
The use of applicability and/or other materials.In addition, fisrt feature described below second feature it " on " structure can be with
Be formed as the embodiment of directly contact including the first and second features, it is also possible to be formed in first and second including other feature
Embodiment between feature, such first and second feature may not be directly contact.
, it is necessary to explanation in description of the invention, unless otherwise prescribed and limit, term " connected " " connection " should do extensively
Reason and good sense solution, can be joined directly together for example, it may be mechanically connecting or electrical connection, or two connections of element internal,
Can also be indirectly connected to by intermediary, for those of ordinary skill in the related art, can managed as the case may be
Solve the concrete meaning of above-mentioned term.
The present embodiment is adopted the following technical scheme that：A kind of dual-purpose intelligent cable, including three core power cables, its feature exist
In the photoelectric conversion device for also being connected including optical fiber and optical fiber；Optical fiber is arranged at three core power cable centers.
Further, photoelectric conversion device includes optical module and electric module；Optical module is connected with optical fiber, for launching optical signal
And receive the scattered light signal of setting；Electric module is connected with optical module, and storage is realized for scattered light signal to be converted into electric signal
Deposit and alarm；Photoelectric conversion device is arranged on three core power cable the initial segments.
Further, optical module includes the laser being sequentially connected, the first light connected on photo-coupler, and photo-coupler
Wave filter, the second optical filter；First optical filter is connected with optical fiber, and the second optical filter is connected with electric module；Laser is sent out
Pulsed light is penetrated, photo-coupler realizes branch and the combining of light, and first, second optical filter can select entering for respective settings wavelength
Penetrate light and scattering light.
Further, first, second optical filter is set using Raman scattering with Brillouin scattering, for screening Stokes
Scattered light signal, anti-Stokes scattering optical signal and Brillouin scattering optical signal.
Further, electric module is sequentially connected the first amplifier, an A/D sampling modules and including the first photoelectric detector
One SRAM module, the second photoelectric detector is sequentially connected the second amplifier, the 2nd A/D sampling modules and the second SRAM module, the
Three photoelectric detectors are sequentially connected the 3rd amplifier, the 3rd A/D sampling modules, comparison module and alarm；First, second and third light
Photodetector is connected with the second optical filter；First, second photoelectric detector is used to detecting Stokes ratio signal and anti-
Stokes ratio signal, and voltage signal output is converted optical signal into, the voltage letter that first and second amplifier will be received
Exported after number being amplified, signal is carried out A/D conversions by first and second A/D sampling modules, and output is stored in into first and second
In SRAM module, for further calling；3rd photoelectric detector is used to detect Brillouin scattering optical signal, and optical signal is converted
For voltage signal is exported, the voltage signal that the 3rd amplifier will be received is exported after being amplified, and the 3rd A/D sampling modules will be believed
A/D conversions and output feeding comparison module number are carried out, comparison module is used to compare the magnitude relationship of output voltage values and setting value,
If output voltage values are more than setting value, start alarm.
Further, three core power cables include that wire, filler, optical fiber place groove.
Further, wire includes：Core, internal shield, megohmite insulant, external shielding layer, protective case and metal screen layer；Line
Core selects copper cash or aluminum steel, internal shield to be made up of semi-conducting material, is surrounded on core surface, with core equipotential, prevents line
Shelf depreciation is produced between core and megohmite insulant, megohmite insulant uses crosslinked polyethylene, is surrounded on outside core and internal shield,
External shielding layer is made up of semi-conducting material, is surrounded on megohmite insulant surface, prevents from producing part between megohmite insulant and protective case
Electric discharge, metal screen layer is surrounded on outside protective case, be will leak out electric current and is accessed grounded screen；Filler selects non-woven fabrics；Optical fiber
Place the axle center that groove is arranged at three core power cables.
Further, optical fiber is positioned over optical fiber and places groove center.
In the specific implementation, as shown in figure 1, a kind of dual-purpose intelligent cable, including three core power cables 1, optical fiber 2, photoelectricity
Conversion equipment 3, optical fiber 2 is placed in the center of three core power cable 1.
Preferably, three core power cables 1 include that wire 6, filler 7, optical fiber place groove 8；Wire 6 includes core
61st, internal shield 62, megohmite insulant 63, external shielding layer 64, protective case 65, metal screen layer 66.
Preferably, the material of core 61 is copper.
Preferably, megohmite insulant 63 is crosslinked polyethylene.
Preferably, filler 7 is non-woven fabrics.
Preferably, photoelectric conversion device 3 is installed on the initial segment of three core power cable 1, photoelectric conversion device 3 includes optical mode
Block 4 and electric module 5.
Preferably, optical module 4 includes：Laser, photo-coupler, first, second optical filter；Laser can be produced
Incident light.
Preferably, first, second optical filter uses Raman scattering being set with Brillouin scattering, this can be filtered out
Lentor scattered light signal, anti-Stokes scattering optical signal and Brillouin scattering optical signal.
Preferably, electric module 5 includes first, second, third photoelectric detector, first, second, third amplifier, the
First, second, third A/D sampling module, first, second SRAM module, comparison module and alarm.
Preferably, first, second photoelectric detector detectable Stokes ratio signal and anti-Stokes scattering
Optical signal, and convert optical signal into electric signal.The detectable Brillouin scattering optical signal of 3rd photoelectric detector, and by optical signal
It is converted into electric signal.
Preferably, first, second SRAM module, can be stored the electric signal of collection.
Preferably, comparison module, can compare the size of electric signal and setting value after conversion, and start alarm.
Embodiment is elaborated below, as shown in figure 1, a kind of dual-purpose intelligent cable, including three core power cables 1,
Optical fiber 2, photoelectric conversion device 3.Photoelectric conversion device 3 is installed on the initial segment of three core power cables 1, including：Optical module 4 and electricity
Module 5, optical module 4 is connected with optical fiber 2, can launch optical signal and receive the scattered light signal of setting, electric module 5 and optical module
4 be connected, can by scattered light signal be converted into electric signal and realize storage with alarm.
As shown in Fig. 2 three core power cables 1 include that wire 6, filler 7, optical fiber place groove 8.Wire 6 includes：Line
Core 61, internal shield 62, megohmite insulant 63, external shielding layer 64, protective case 65, metal screen layer 66.The material of core 61 is copper cash
Or aluminum steel, the material of electric conductivity good insulation material 63 is crosslinked polyethylene, and insulating properties are good, are surrounded on core 61 and interior screen
Cover outside layer 62.Internal shield 62 is made up of semi-conducting material, is surrounded on the surface of core 61, with the equipotential of core 61, prevents line
There is shelf depreciation between core 61 and megohmite insulant 63.External shielding layer 64 is made up of semi-conducting material, is surrounded on megohmite insulant 63
Surface, prevents from producing shelf depreciation between megohmite insulant 63 and protective case 65.Metal screen layer 66 is surrounded on outside protective case 65,
Electric current can be will leak out and access grounded screen.The material of filler 7 is non-woven fabrics.Optical fiber places groove 8 and is installed on three core power cables 1
Axle center, optical fiber 2 is positioned over optical fiber and places the center of groove 8, can uniformly measure cable temperature.
As shown in figure 3, optical module 4 includes laser, photo-coupler, first, second optical filter.Laser can launch arteries and veins
Wash off, photo-coupler can realize branch and the combining of light.First, second optical filter can select entering for respective settings wavelength
Penetrate light and scattering light.Electric module 5 includes：First, second, third photodetector, first, second, third amplifier, first,
2nd, the 3rd A/D sampling modules, first, second SRAM module, comparison module, alarm.First, second photoelectric detector can
Stokes ratio signal and anti-Stokes scattering optical signal are detected, the 3rd photoelectric detector is able to detect that Brillouin
Scattered light signal, the first photoelectric detector and the second photoelectric detector can convert optical signal into voltage signal and export, first,
Second, third amplifier is connected with first, second, third photoelectric detector respectively, after the voltage signal that will be received is amplified
Signal can be carried out A/D conversions by output, first, second, third A/D sampling modules, and first, second A/D is changed into output
It is stored in first, second SRAM module, for further calling.Comparison module, comparison module energy are sent in 3rd A/D conversion outputs
Enough compare the magnitude relationship of output voltage values and setting value, if output voltage values are more than setting value, alarm can be started, remind
Staff's cable has stolen hidden danger.
The present embodiment realizes the temperature measuring and stress detection of three core power cable each points, is eliminated using built-in fiber
External interference, three-core cable center is installed on by optical fiber, improves the uniformity coefficient and accuracy of measurement temperature and stress.Simultaneously
Improve the service life of optical fiber.Power cable fault detection, current-carrying capacity control, burglar alarm aspect are provided and realize foundation.
It should be appreciated that the part that this specification is not elaborated belongs to prior art.
Although the specific embodiment of the invention above in association with Description of Drawings, those of ordinary skill in the art should
Understand, these are merely illustrative of, and various deformation or modification can be made to these implementation methods, without departing from original of the invention
Reason and essence.The scope of the present invention is only limited by the claims that follow.
Claims (8)
1. a kind of dual-purpose intelligent cable, including three core power cables, it is characterised in that the light for also being connected including optical fiber and optical fiber
Electrical switching device；Optical fiber is arranged at three core power cable centers.
2. dual-purpose intelligent cable as claimed in claim 1, it is characterised in that photoelectric conversion device includes optical module and electric mould
Block；Optical module is connected with optical fiber, for launching optical signal and receiving the scattered light signal of setting；Electric module is connected with optical module,
Realize storage with alarm for scattered light signal to be converted into electric signal；Photoelectric conversion device is arranged on the starting of three core power cables
Section.
3. dual-purpose intelligent cable as claimed in claim 2, it is characterised in that optical module includes the laser, the light that are sequentially connected
The first optical filter, the second optical filter connected on coupler, and photo-coupler；First optical filter is connected with optical fiber,
Second optical filter is connected with electric module；Laser launches pulsed light, and photo-coupler realizes branch and the combining of light, and first, the
Two optical filters can select the incident light and scattering light of respective settings wavelength.
4. dual-purpose intelligent cable as claimed in claim 3, it is characterised in that first, second optical filter uses Raman scattering
Set with Brillouin scattering, for screening Stokes ratio signal, anti-Stokes scattering optical signal and Brillouin scattering
Optical signal.
5. dual-purpose intelligent cable as claimed in claim 2, it is characterised in that electric module connects successively including the first photoelectric detector
Connect the first amplifier, an A/D sampling modules and the first SRAM module, the second photoelectric detector be sequentially connected the second amplifier,
2nd A/D sampling modules and the second SRAM module, the 3rd photoelectric detector are sequentially connected the 3rd amplifier, the 3rd A/D sampling moulds
Block, comparison module and alarm；First, second and third photoelectric detector is connected with the second optical filter；First, second Photoelectric Detection
Device is used to detect Stokes ratio signal and anti-Stokes scattering optical signal, and it is defeated to convert optical signal into voltage signal
Go out, the voltage signal that first and second amplifier will be received is exported after being amplified, and first and second A/D sampling modules carry out signal
A/D is changed, and output is stored in first and second SRAM module, for further calling；3rd photoelectric detector is used to detect cloth
In deep scattered light signal, and convert optical signal into voltage signal output, the voltage signal that the 3rd amplifier will be received is carried out
After amplification export, the 3rd A/D sampling modules by signal carry out A/D conversions and output feeding comparison module, comparison module be used for than
Compared with output voltage values and the magnitude relationship of setting value, if output voltage values are more than setting value, start alarm.
6. dual-purpose intelligent cable as claimed in claim 2, it is characterised in that three core power cables include wire, filler,
Optical fiber places groove.
7. dual-purpose intelligent cable as claimed in claim 6, it is characterised in that wire includes：Core, internal shield, insulant
Matter, external shielding layer, protective case and metal screen layer；Core selects copper cash or aluminum steel, internal shield to be made up of semi-conducting material, ring
Core surface is around in, with core equipotential, prevents from producing shelf depreciation between core and megohmite insulant, megohmite insulant is using crosslinking
Polyethylene, is surrounded on outside core and internal shield, and external shielding layer is made up of semi-conducting material, is surrounded on megohmite insulant surface,
Prevent from producing shelf depreciation between megohmite insulant and protective case, metal screen layer is surrounded on outside protective case, will leak out electric current and connect
Enter grounded screen；Filler selects non-woven fabrics；Optical fiber places the axle center that groove is arranged at three core power cables.
8. dual-purpose intelligent cable as claimed in claim 7, it is characterised in that optical fiber is positioned over optical fiber and places groove center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611236024.2A CN106710702A (en) | 2016-12-28 | 2016-12-28 | Dual-purpose intelligent cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611236024.2A CN106710702A (en) | 2016-12-28 | 2016-12-28 | Dual-purpose intelligent cable |
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Application publication date: 20170524 |