CN109687374A - Laser ice melting system and method based on Bragg grating - Google Patents
Laser ice melting system and method based on Bragg grating Download PDFInfo
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- CN109687374A CN109687374A CN201810868208.3A CN201810868208A CN109687374A CN 109687374 A CN109687374 A CN 109687374A CN 201810868208 A CN201810868208 A CN 201810868208A CN 109687374 A CN109687374 A CN 109687374A
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- laser
- ice
- signal
- earth wire
- aerial earth
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
Abstract
The embodiment of the invention discloses a laser ice melting system and a laser ice melting method based on FBG (fiber Bragg Grating), which are characterized by comprising the following steps: the ice coating monitoring device is arranged at the overhead ground wire and used for monitoring the ice coating on the current overhead ground wire in real time and outputting a first signal; a demodulation device for receiving the first signal and demodulating the first signal into icing thickness data; the control device is used for generating a control signal according to the ice coating thickness data; and the laser is used for emitting laser beams, adjusting the light emitting power, adjusting the light emitting position and closing the laser beams under the control of the control signal. By the system and the method, the icing condition of the overhead cable can be monitored in real time, and the icing on the cable is deicing remotely operated according to the obtained icing condition, so that the labor cost is greatly saved, and the deicing efficiency is improved.
Description
Technical field
The present embodiments relate to field of application of photoelectric technology more particularly to a kind of laser based on fiber bragg grating
Ice melting system and method.
Background technique
With power grid commercialization deepen continuously and continuous promotion of the user to reliability of electric power and quality requirement,
Power industry is faced with unprecedented challenge and opportunity, builds controllable, safe, reliable, environmentally friendly, economic intelligent power grid system
System is just becoming the common objective of global power industry.
In recent years, icing is removed both at home and abroad be broadly divided into mechanical deicing's method, heating power deicing method and artificial deicing method three classes,
Mechanical deicing's method mainly makes it fall off using the mechanical balance that the mechanics effect of transmission line wire destroys icing；Heating power deicing method
Mainly artificially by one end two-phase or three-phase shortcircuit of DC ice-melting, and ice-melt AC power source is provided in the other end, with larger short
Road electric current (control is within the scope of conducting wire maximum allowed current) carrys out heating wires, the ice-out that will be covered；Artificial deicing method master
If being removed by manpower to icing.Artificial deicing method and mechanical deicing's method efficiency are too low and time-consuming and laborious, heating power deicing
Although method, which can be realized effectively, carries out deicing to transmission line of electricity, the deicing of aerial earth wire cannot achieve.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of laser ice melting system and method, solves and aerial earth wire is carried out
The problem of lossless deicing.
In a first aspect, the embodiment of the invention provides a kind of laser ice melting systems, comprising:
Device for monitoring icing is set at aerial earth wire, for carrying out real-time monitoring to the icing on current aerial earth wire,
Export the first signal；
Demodulating equipment is demodulated to ice covering thickness data for receiving first signal, and by first signal；
Control device, for generating control signal according to the ice covering thickness data；
Laser, for issuing laser beam, adjustment light power, adjusting out under the control of the control signal
Optical position closes laser beam.
Optionally, the device for monitoring icing is monitored the ice covering thickness by FBG sensing unit.
Optionally, the laser ice melting system, further includes:
Model building device, Xiang Suoshu aerial earth wire emit microwave signal, receive by the reflected reflection of the aerial earth wire
Signal；And according to the reflection signal, the laser and the aerial earth wire are modeled, determine it is described aerially
The position of line, shape, range information.
Optionally, the control device is also used to modeling result and the ice covering thickness number according to the model building device
According to determining starting ice-melt point terminates ice-melt point, light power, laser beam motion track and/or laser beam movement speed.
Optionally, the aerial earth wire is optical fiber composite overhead ground wire (OPGW).
Optionally, the demodulating equipment carries out Wavelength demodulation to the first signal that the device for monitoring icing issues, to
To demodulation result be analyzed and processed, obtain the ice covering thickness data.
Optionally, from sighting device, for aiming at the aerial earth wire in the modeling process.
Optionally, described to be also used to from sighting device: in deicing processes, to control the laser beam alignment to ice-melt
Point, also, control the laser beam be moved to according to the trend of the aerial earth wire it is next to ice-melt point.
The laser is high power laser or optical fiber laser, can be realized auto-focusing, can be according to icing
Situation is from main regulation spot size；It can be realized the auto-focusing to object within the scope of 100~300m, spot size can basis
Icing situation carries out autonomous adjusting.Meanwhile guaranteeing that Bright efficacy and density under conditions of ground wire can be within tolerance range, protects
It is constant to hold hot spot longitudinal length, length is long as far as possible on direction along the line.By carrying out such adjusting to hot spot, may be implemented
Efficient ice-melt and aerial earth wire is not damaged.
The embodiment of the present invention realizes the passive real-time monitoring of overhead ground wire ice coverage thickness at aerial earth wire end, to aerial
Cable is modeled, according to real-time monitoring as a result, according to modeler model, by high power laser to the icing on cable into
Row ice-melt processing, to realize the effect of long-range ice-melt, substantially increases ice-melt efficiency, reduces ice-melt cost.
Second aspect, the embodiment of the invention provides a kind of laser de-icing methods, comprising:
Real-time monitoring is carried out to the icing on current aerial earth wire by FBG sensing unit, exports the first signal；
First signal is received, and first signal is demodulated to ice covering thickness data；
According to the ice covering thickness data, control signal is generated, laser beam is issued to control laser, adjusts out light function
Rate, closes laser beam at adjustment exit positions；
Wherein, the current aerial earth wire is optical fiber composite overhead ground wire (OPGW).
Optionally, the laser can be high power laser or optical fiber laser, can be realized auto-focusing,
It can be according to icing situation from main regulation spot size.
Optionally, the method also includes:
Modeling procedure, Xiang Suoshu aerial earth wire emit microwave signal, receive by the reflected reflection of the aerial earth wire
Signal models the laser and the aerial earth wire according to the reflection signal, determines the position of the aerial earth wire
It sets, shape, range information.
Optionally, the control signal further include:
According to the modeling result of the model building device and the ice covering thickness data, determines starting ice-melt point, terminates ice-melt
Point, light power, laser beam motion track and/or laser beam movement speed, control the laser.
Optionally, the demodulation specifically includes:
Wavelength demodulation is carried out to first signal, obtained demodulation result is analyzed and processed, the icing is obtained
Thickness data.
The embodiment of the present invention realizes the passive real-time monitoring of overhead ground wire ice coverage thickness at aerial earth wire end, to aerial
Cable is modeled, according to real-time monitoring as a result, according to modeler model, by high power laser to the icing on cable into
Row ice-melt processing, to realize the effect of long-range ice-melt, substantially increases ice-melt efficiency, reduces ice-melt cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram for the laser de-icing method based on Bragg grating that one embodiment of the invention provides；
Fig. 2 be another embodiment of the present invention provides the method flow schematic diagram that aerial earth wire is modeled；
Fig. 3 be another embodiment of the present invention provides the laser ice melting system based on Bragg grating structural schematic diagram；
Fig. 4 be another embodiment of the present invention provides laser ice melting system implementation flow chart；
Fig. 5 be another embodiment of the present invention provides laser ice melting system layout drawing on the spot；
Fig. 6 be another embodiment of the present invention provides laser ice melting system application scenario diagram；
Fig. 7 is the structural schematic diagram for the laser ice melting system that one embodiment of the invention provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
It also should be noted that only the parts related to the present invention are shown for ease of description, in attached drawing rather than
Full content.It should be mentioned that some exemplary embodiments are described before exemplary embodiment is discussed in greater detail
At the processing or method described as flow chart.Although operations (or step) are described as the processing of sequence by flow chart,
It is that many of these operations can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations can be by again
It arranges.Processing can be terminated when its operations are completed, it is also possible to have the additional step being not included in attached drawing.Processing
It can correspond to method, function, regulation, subroutine, subprogram etc..
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Fig. 1 shows a kind of aerial earth wire remote laser de-icing method based on fiber bragg grating, as shown in Figure 1,
The system the following steps are included:
S101 carries out the icing on current aerial earth wire by optical fiber Bragg Bragg grating (FBG) sensing unit real
When monitor, export the first signal；
Optical fiber Bragg Bragg grating (FBG) is sensed with light weight, diameter is thin, anti-electromagnetic interference capability is strong, anti-corruption
Erosion, high temperature resistant, signal, which decay, small, collection information sensing and is transmitted in integrated advantage, and wavelength-division multiplex (WDM) technology can be used and exist
Multiple FBG gratings are concatenated in a piece optical fiber to carry out distributed measurement, especially for being monitored to power grid；
Transmission line of electricity largely uses optical fiber composite phase (OPPC) and optical fiber composite overhead ground wire (OPGW) now,
To form fiber optic communication network, it is based on this, we are realized using FBG grating to transmission line of electricity, especially have optical fiber compound phase
Line (OPPC) and the transmission line of electricity of optical fiber composite overhead ground wire (OPGW) carry out ice-melt operation；
FBG sensing unit can be one or more FBG strain transducers, can be used for measuring the weight of cable and icing
Power is mounted on the suitable position of the close ground wire of transmission tower, by the measurement to deformation degree, exports the first signal.
S102 receives first signal, and first signal is demodulated to ice covering thickness data.
The first signal received is demodulated, to obtain ice covering thickness data；The first signal herein can be FBG
The central wavelength signal of sensor feedback, the center wavelength variation amount and external force of gravity or deformation degree are in a linear relationship, pass through
Demodulation to wavelength variable quantity can be obtained external force of gravity data or deformation level data, and then obtain ice covering thickness data.
S103 generates control signal according to the ice covering thickness data, issues laser beam, adjustment to control laser
Light power, closes laser beam at adjustment exit positions.
According to the ice covering thickness data that demodulation obtains, control signal is generated, control laser issues the power of light beam, starting
Time, the mobile speed etc. of light beam calculates according to ice covering thickness and carries out ice-melt with the first power, need how long, together
When, it calculates and next ice-melt point is shifted to first movement speed, the final ice-melt realized to whole route.
The current aerial earth wire can be as optical fiber composite overhead ground wire (OPGW).
The laser is high power laser or optical fiber laser, can be realized auto-focusing, can be according to icing
Situation is from main regulation spot size；It can be realized the auto-focusing to object within the scope of 100~300m, spot size can basis
Icing situation carries out autonomous adjusting.Meanwhile guaranteeing that Bright efficacy and density under conditions of ground wire can be within tolerance range, protects
It is constant to hold hot spot longitudinal length, length is long as far as possible on direction along the line.By carrying out such adjusting to hot spot, may be implemented
Efficient ice-melt and aerial earth wire is not damaged.
In this way ice-melt operation, can easily, monitoring room realize to the ice covering thickness on the cable of distal end into
Row monitoring, when needing to carry out anti-ice operation, carries out anti-ice operation to it using the laser equipment on ground, melts to greatly improve
Ice efficiency reduces human cost.
Fig. 2 shows another embodiment of the present invention provides method flow schematic diagram that aerial earth wire is modeled, such as
Shown in Fig. 2, method includes the following steps:
S201, overhead transmission line is aimed at.
In a kind of achievable mode, by aiming at overhead transmission line from sighting device；
S202, Xiang Suoshu aerial earth wire emit microwave signal, receive by the reflected reflection signal of the aerial earth wire,
According to the reflection signal, the laser and the aerial earth wire are modeled, determine position, the shape of the aerial earth wire
Shape, range information.
In an alternative embodiment, model building device may include microwave launcher and microwave receiving device, make somebody a mere figurehead to described
Ground wire emits microwave signal, receives by the reflected reflection signal of the aerial earth wire, according to the reflection signal, to described
Laser and the aerial earth wire are modeled, and determine position, the shape, range information of the aerial earth wire, in this way
Modeling data controls the ice-melt power of laser, time, motion track etc., when laser beam is blocked by trees, controls institute
State laser shift position.
Optionally, the modeling data obtained herein can be applied in practical deicing processes；Aiming certainly herein, equally
Also it can be applied to during the aiming in practical deicing processes.
Fig. 3 show another embodiment of the present invention provides the laser ice melting system based on Bragg grating structural representation
Figure.
As shown in figure 3, the laser ice melting system includes:
Device for monitoring icing is set at aerial earth wire, for carrying out real-time monitoring to the icing on current aerial earth wire,
Export the first signal；
Optionally, the device for monitoring icing is monitored the ice covering thickness by FBG sensing unit；
Optical fiber Bragg Bragg grating (FBG) is sensed with light weight, diameter is thin, anti-electromagnetic interference capability is strong, anti-corruption
Erosion, high temperature resistant, signal, which decay, small, collection information sensing and is transmitted in integrated advantage, and wavelength-division multiplex (WDM) technology can be used and exist
Multiple FBG gratings are concatenated in a piece optical fiber to carry out distributed measurement, especially for being monitored to power grid；
Transmission line of electricity largely uses optical fiber composite phase (OPPC) and optical fiber composite overhead ground wire (OPGW) now,
To form fiber optic communication network, it is based on this, we are realized using FBG grating to transmission line of electricity, especially have optical fiber compound phase
Line (OPPC) and the transmission line of electricity of optical fiber composite overhead ground wire (OPGW) carry out ice-melt operation；
FBG sensing unit can be one or more FBG strain transducers, can be used for measuring the weight of cable and icing
Power is mounted on the suitable position of the close ground wire of transmission tower, by the measurement to deformation degree, exports the first signal.
Demodulating equipment is demodulated to ice covering thickness data for receiving first signal, and by first signal.
The first signal received is demodulated, to obtain ice covering thickness data；The first signal herein can be FBG
The central wavelength signal of sensor feedback, the center wavelength variation amount and external force of gravity or deformation degree are in a linear relationship, pass through
Demodulation to wavelength variable quantity can be obtained external force of gravity data or deformation level data, and then obtain ice covering thickness data.
Control device, for generating control signal according to the ice covering thickness data；
Laser, for issuing laser beam, adjustment light power, adjusting out under the control of the control signal
Optical position closes laser beam.
Wherein, the control device generates control signal, control laser hair according to the ice covering thickness data that demodulation obtains
The power of light beam out, the time of starting, the mobile speed etc. of light beam, according to ice covering thickness, calculating is melted with the first power
Ice, need how long, meanwhile, calculate and next ice-melt point shifted to first movement speed, final realize melts whole route
Ice.
Optionally, the current aerial earth wire can be as optical fiber composite overhead ground wire (OPGW).
Optionally, the laser is high power laser or optical fiber laser, can be realized auto-focusing, can
According to icing situation from main regulation spot size；It can be realized the auto-focusing to object within the scope of 100~300m, spot size
Autonomous adjusting can be carried out according to icing situation.Meanwhile guaranteeing that Bright efficacy and density can be within tolerance range in ground wire
Under the conditions of, keep hot spot longitudinal length constant, length is long as far as possible on direction along the line.By carrying out such adjust to hot spot
Section, may be implemented efficient ice-melt and does not damage to aerial earth wire.
Optionally, which can also include model building device, and Xiang Suoshu aerial earth wire emits microwave signal, receive described
The reflected reflection signal of aerial earth wire builds the laser and the aerial earth wire according to the reflection signal
Mould determines position, the shape, range information of the aerial earth wire.
Optionally, which can also include in modeling process and/or in deicing processes, controlling from sighting device
Laser aims at the position to ice-melt.
Optionally, the control device, can also modeling result according to the model building device and the ice covering thickness data,
It determines starting ice-melt point, terminate ice-melt point, light power, laser beam motion track and/or laser beam movement speed, to institute
Laser is stated to be controlled.
Fig. 4 be another embodiment of the present invention provides laser ice melting system implementation flow chart.
As shown in figure 4, firstly, the passive icing on-line monitoring system based on FBG to the icing situation on aerial cable into
Icing data are sent to O&M backstage in real time, are shown on the display on O&M backstage by row monitoring；
When icing data reach predetermined threshold, ice-melt processing routine is triggered, operation maintenance personnel reaches scene；
Operation maintenance personnel sets up high power laser, and start laser takes aim at system certainly, to the overhead line for currently needing ice-melt
Cable is aimed at, is modeled, and determines the information such as position, distance, the ice-melt initial position of cable；
According to icing data and modeling data, controls laser and ice-melt operation is carried out to aerial cable；
Device for monitoring icing in real time by the ice covering thickness data feedback in deicing processes to control system, control system according to
Situation of change, real-time adjustment/control laser ice-melt operation；
When the ice covering thickness of current ice-melt point is down to second threshold or less, the light beam of laser is moved to next to ice-melt position
It sets, continues ice-melt operation, until being moved to ice-melt end position；
When the ice covering thickness of ice-melt end position is also down to second threshold or less, ice-melt terminates.
Wherein, second threshold can be such as 0.
Fig. 5 be another embodiment of the present invention provides laser ice melting system layout drawing on the spot.
As shown in figure 5, device for monitoring icing is set to position of the transmission tower close to ground wire, FBG (FBG) demodulator and server
The sensing monitoring center of position distal end, FBG (FBG) demodulator carry out the monitoring signal sent by OPGW/ADSS fiber channel
Demodulation, obtains ice covering thickness data, and sensing monitoring center decides whether to start ice-melt behaviour according to the ice covering thickness data of acquisition
Make.
Laser is used to carry out ice-melt operation to the icing on cable.Model building device, control device etc. is not shown in the figure to set
It is standby.
Fig. 6 be another embodiment of the present invention provides laser ice melting system application scenario diagram.
Firstly, modeling to cable, the information such as position, shape, length, the distance of cable are determined, meanwhile, according to icing
Situation also obtains the degree information of cable deformation.
According to the ice covering thickness data of modeling data and acquisition, controls laser and ice-melt behaviour is carried out to the icing on cable
Make.
Wherein, which can be high power laser, can be optical fiber laser, can cover 300 meters of 100-
Ice-melt radius；It can be realized the auto-focusing to object within the scope of 100~300m, spot size can be carried out according to icing situation
Autonomous adjusting.Meanwhile guaranteeing that Bright efficacy and density under conditions of ground wire can be within tolerance range, keeps hot spot longitudinally long
Spend constant, length is long as far as possible on direction along the line.By carrying out such adjusting to hot spot, efficient ice-melt may be implemented
And aerial earth wire is not damaged.
It wherein, can also include microwave transmitter, microwave receiver, microwave transmitter is used to believe to cable transmission microwave
Number, microwave receiver, according to reflected microwave signal, carries out the cable for receiving reflected microwave signal
Modeling, determines ice-melt starting point and ice-melt terminal.
Fig. 7 is the structural schematic diagram for the laser ice melting system that one embodiment of the invention provides.Wherein, needed for control system
Program software can store in memory 702, be executed by processor 701.
It is schematical, only a kind of logical function partition to the division of module in the above embodiment of the present invention, it is practical
There may be another division manner when realization, in addition, each functional module in each embodiment of the application can integrate one
In a processor, it is also possible to physically exist alone, can also be integrated in two or more modules in a module.It is above-mentioned
Integrated module both can take the form of hardware realization, can also be realized in the form of software function module.
The electronic equipment of the embodiment of the present invention exists in a variety of forms, including but not limited to:
(1) mobile communication equipment: the characteristics of this kind of equipment is that have mobile communication function, and to provide speech, data
Communication is main target.This Terminal Type includes: smart phone (such as iPhone), multimedia handset, functional mobile phone and low
Hold mobile phone etc..
(2) super mobile personal computer equipment: this kind of equipment belongs to the scope of personal computer, there is calculating and processing function
Can, generally also have mobile Internet access characteristic.This Terminal Type includes: PDA, MID and UMPC equipment etc., such as iPad.
(3) portable entertainment device: this kind of equipment can show and play multimedia content.Such equipment include: audio,
Video player (such as iPod), handheld device, e-book and intelligent toy and portable car-mounted navigation equipment.
(4) server: providing the equipment of the service of calculating, and the composition of server includes processor 1010, hard disk, memory, is
Bus of uniting etc., server is similar with general computer architecture, but due to needing to provide highly reliable service, is handling
Ability, stability, reliability, safety, scalability, manageability etc. are more demanding.
(5) other electronic devices with data interaction function.
The apparatus embodiments described above are merely exemplary, wherein module can be as illustrated by the separation member
Or may not be and be physically separated, the component shown as module may or may not be physical module, i.e.,
It can be located in one place, or may be distributed on multiple network modules.It can select according to the actual needs therein
Some or all of the modules achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creative labor
In the case where dynamic, it can understand and implement.
The embodiment of the present invention provides a kind of non-volatile computer readable storage medium storing program for executing, non-volatile computer readable storage
Media storage has program instruction, when electronic equipment executes program instructions, for executing the aphorama in above method embodiment
Frequency exchange method and step.
The embodiment of the invention provides a kind of computer program products, wherein computer program product is non-including being stored in
Computer program in transitory computer readable storage medium, computer program include program instruction, wherein when program instruction quilt
When electronic equipment executes, electronic equipment is made to execute the panoramic video exchange method in above-mentioned any means embodiment.
Each functional module in each embodiment of the present invention can integrate in one processing unit, be also possible to each
Module physically exists alone, and can also be integrated in one unit with two or more modules.Above-mentioned integrated unit both may be used
To use formal implementation of hardware, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Device (can be personal computer, server or network equipment etc.) or intelligent terminal or processor (Processor)
Execute the part steps of each embodiment method of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only storage
Device (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or light
The various media that can store program code such as disk.
In above-described embodiment provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of module, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple module or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.
Module may or may not be physically separated as illustrated by the separation member, show as module
Component may or may not be physical module, it can and it is in one place, or may be distributed over multiple networks
On unit.Some or all of the modules therein can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
The above is only the embodiment of the present invention, are not intended to limit the scope of the patents of the invention, although with reference to the foregoing embodiments
Invention is explained in detail, still can be to aforementioned each specific reality for coming for those skilled in the art
It applies technical solution documented by mode to modify, or equivalence replacement is carried out to part of technical characteristic.It is all to utilize this
The equivalent structure that description of the invention and accompanying drawing content are done directly or indirectly is used in other related technical areas, similarly
Within the invention patent protection scope.
Claims (12)
1. a kind of laser ice melting system characterized by comprising
Device for monitoring icing is set at aerial earth wire, for carrying out real-time monitoring, output to the icing on current aerial earth wire
First signal；
Demodulating equipment is demodulated to ice covering thickness data for receiving first signal, and by first signal；
Control device, for generating control signal according to the ice covering thickness data；
Laser, for issuing laser beam, adjustment light power, adjusting out light position under the control of the control signal
It sets, close laser beam.
2. laser ice melting system according to claim 1, wherein the device for monitoring icing passes through FBG sensing unit pair
The ice covering thickness is monitored.
3. laser ice melting system according to claim 1, further includes:
Model building device, Xiang Suoshu aerial earth wire emit microwave signal, receive by the reflected reflection signal of the aerial earth wire,
According to the reflection signal, the laser and the aerial earth wire are modeled, determine position, the shape of the aerial earth wire
Shape, range information.
4. laser ice melting system according to claim 3, wherein
The control device, according to the modeling result of the model building device and the ice covering thickness data, determining starting ice-melt point,
Terminate ice-melt point, light power, laser beam motion track and/or laser beam movement speed, the laser is controlled
System.
5. laser ice melting system according to claim 1, wherein
The aerial earth wire is optical fiber composite overhead ground wire (OPGW).
6. laser ice melting system according to claim 1, wherein
The demodulating equipment carries out Wavelength demodulation to the first signal that the device for monitoring icing issues, to obtained demodulation knot
Fruit is analyzed and processed, and obtains the ice covering thickness data.
7. laser ice melting system according to claim 3, the model building device further include:
From sighting device, for aiming at the aerial earth wire in the modeling process.
8. laser ice melting system according to claim 7, described to be also used to from sighting device:
In deicing processes, the laser beam alignment is controlled to ice-melt point, also, control the laser beam according to institute
State aerial earth wire trend be moved to it is next to ice-melt point.
9. a kind of laser de-icing method, it is characterised in that:
Real-time monitoring is carried out to the icing on current aerial earth wire by FBG sensing unit, exports the first signal；
First signal is received, and first signal is demodulated to ice covering thickness data；
According to the ice covering thickness data, generate control signal, with control laser issue laser beam, adjustment light power,
It adjusts exit positions, close laser beam；
Wherein, the current aerial earth wire is optical fiber composite overhead ground wire (OPGW).
10. laser de-icing method according to claim 9, wherein the method also includes:
Modeling procedure, Xiang Suoshu aerial earth wire emit microwave signal, receive by the reflected reflection signal of the aerial earth wire,
According to the reflection signal, the laser and the aerial earth wire are modeled, determine position, the shape of the aerial earth wire
Shape, range information.
11. laser de-icing method according to claim 10, wherein the control signal further include:
According to the modeling result of the model building device and the ice covering thickness data, determines starting ice-melt point, terminate ice-melt point, go out
Optical power, laser beam motion track and/or laser beam movement speed, control the laser.
12. laser de-icing method according to claim 9, wherein the demodulation specifically includes:
Wavelength demodulation is carried out to first signal, obtained demodulation result is analyzed and processed, the ice covering thickness is obtained
Data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810868208.3A CN109687374A (en) | 2018-08-01 | 2018-08-01 | Laser ice melting system and method based on Bragg grating |
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| CN201810868208.3A CN109687374A (en) | 2018-08-01 | 2018-08-01 | Laser ice melting system and method based on Bragg grating |
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