CN108614930A - Experiment simulation layout method based on fiber Rayleigh scattering vibration identification system - Google Patents
Experiment simulation layout method based on fiber Rayleigh scattering vibration identification system Download PDFInfo
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- CN108614930A CN108614930A CN201810354243.3A CN201810354243A CN108614930A CN 108614930 A CN108614930 A CN 108614930A CN 201810354243 A CN201810354243 A CN 201810354243A CN 108614930 A CN108614930 A CN 108614930A
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Abstract
The invention discloses a kind of experiment simulation layout methods based on fiber Rayleigh scattering Vibration Identification system, including using vibration optical cable as sensing unit, and the environment in in-site modeling distribution cable channel is complicated, circumference is divided into 4 defence areas by whole optical cable by connecting packet, each defence area carries out defence area configuration according to the demand of user, data are acquired and are controlled using computer and are realized over long distances, the detection in a wide range of circumference defence area, the present invention can pass through the experimental situation of different characteristic, respectively the different modes of infection are simulated in different defence areas, and extract coupled vibration waveform, method is simple in structure, it is easy to operate.
Description
Technical field
It is the present invention relates to electric analog technical field, more particularly to a kind of based on fiber Rayleigh scattering Vibration Identification system
Experiment simulation layout method.
Background technology
With the quickening of China's Urbanization Construction process, various regions Large scale construction causes electric transmission line channel to be compressed, electricity
Power cable is the important carrier of power transmission, but and natural calamity is (such as human factor (such as construction digs broken skin, is cut skin)
Landslide, landslide, settlement of foundation, the destruction of burn into mouse etc.) cable line fault can be caused, it influences electric power network and builds efficiency
It plays.
Anti-tamper monitoring for the electric power pipe network such as buried cable tunnel, there are some drawbacks for intrinsic routine inspection mode.People
Patrolling cannot monitor for 24 hours, and there are inspection period blank, and management process is cumbersome, and it is more to be related to personnel.What underground pipe network nearby worked
Road shocks compacting machine, excavator and blindly construction are likely to destroy buried cable, different degrees of loss are caused, to residence
Civilian electricity brings hidden danger.For other technologies, sonic detection has its adaptability applied.But under the complex environment of city
Sonic detection, never ripe means.Therefore, applied science means realize the failure of power cable is detected and
Positioning, timely prompting line attendant take preventive measures seem very urgent and necessary in advance.
For broken hidden danger outside circuit, a set of practical, cost-effective transmission line of electricity external force damage prevention behave is formulated, is to reduce circuit
Trip-out rate ensures the important guarantee of electric power netting safe running.Low and medium voltage distribution network cable trace gos deep into cell, villages within the city, pavement more
Equal areas, and close to earth's surface, conduit line is easy to be destroyed or invaded by external force, is also easy accidentally to be excavated in construction section.
In recent years, buried cable power supply proportion in a power distribution system is increasing, but cable in use often by
It is destroyed to external force, the safe and reliable advantage of cable power supply is severely impacted.Especially urban power distribution network, due to considering that city is whole
The bodily form is as the situation of ground land used anxiety has gradually exited city incity overhead transmission line, and buried cable service condition is also big
Amplitude is promoted.
Since urban power distribution network often gos deep into residential block, industry and commerce plot, the external environment of cable passage operation
Complexity is high, such as heavy vehicle rolls, building/road construction destroys.In order to evade all multi-obstacle avoidances in city, power distribution network
Cable passage includes a variety of system of laying such as direct-burried, cable duct, cable duct bank, push pipe of passing by one's way, cable tunnel.Different laying sides
Formula is also not quite similar to the external adaptability in channel.So various regions also occur much since cable passage receives external break
Bad, the situation for causing operation cable impaired occurs often.
The early warning system of vibration optical fiber sensing technology uses optical cable as sensing unit, is adopted to data using computer
Collection and the detection for controlling and realizing long range, a wide range of circumference defence area, per the length in defence area up to hundreds of meters to thousands of rice.But
Since the environment in distribution cable channel is complicated, it is usually accompanied by the extraneous moving object such as kart, medium-and-large-sized lorry, pedestrian, no
Same extraneous moving object vibration performance caused by cable passage is also not quite similar, therefore, it is necessary to be moved to the different external worlds
Research is identified in object vibration performance caused by cable passage, establishes effective Vibration identification threshold value, logical to power distribution network cable
The outer broken defence in road provides guidance instruction.
Invention content
In view of this, the object of the present invention is to provide a kind of experiment simulations based on fiber Rayleigh scattering Vibration Identification system
Layout method.By the experimental situation of different characteristic, the different modes of infection are simulated in different defence areas respectively, convenient for vibration performance
Research is identified.
The purpose of the present invention is what is be achieved through the following technical solutions：
Experiment simulation layout method of this kind based on fiber Rayleigh scattering Vibration Identification system, includes the following steps：
The experiment simulation layout method based on fiber Rayleigh scattering Vibration Identification system of the present invention is made using vibration optical cable
For sensing unit, and the environment in in-site modeling distribution cable channel is complicated, and circumference is divided by whole optical cable by connecting packet
At least four defence area (4), each defence area carry out defence area configuration according to the demand of user, at the computer in central machine room (1)
Platform (101) is acquired data and controls and realizes the detection of long range, a wide range of circumference defence area.
Further, the defence area (4) includes defence area I (401), defence area II (402), defence area III (403) and defence area IV
(404) four defence areas；
Defence area I (401)：From the aerial cabling in laboratory, including segmentation packet I and segmentation packet II, wherein segmentation packet I is placed on experiment
Interior, segmentation packet II are placed in surge voltage laboratory, and defence area I is for simulating more faint invasion mode；
Defence area II (402)：Underground on direct-burried to the place side in laboratory east side, including segmentation packet III and segmentation packet IV, point
Steamed sandwich III, IV is placed in independence, and defence area II is used to acquire under different distance variable signal under vibration source operating mode；
Defence area III (403)：It from outlet between independence, under wayside, again returns between independence, defence area III is for acquiring
People's row, vehicle pass through the vibration signal that changes under, big machinery working condition；
Defence area IV (404)：Enter under wayside from outlet between independence, pass through road, to southern side after lowerly into cable duct, including
In laboratory, defence area IV, which is used to acquire different operating modes etc., believes the invasion of optical fiber under cable duct environment by segmentation packet V, segmentation packet V
Number.
Further, monitor keyboard (102), the central machine room (1) and outside are additionally provided in the central machine room
Monitoring software system (2), monitoring hardware system (3) are connected.
Further, the monitoring hardware system (3) is inner is provided with wireless transmitter receiver device.
Further, the track lengths of the defence area I are 50m.
Further, the track lengths of defence area II are 25m.
Further, about 90 meters of the unidirectional track lengths of the defence area III, double direction wire arrangement length are 180 meters altogether.
Further, the track lengths of the defence area IV are totally 35 meters.
The beneficial effects of the invention are as follows：
The present invention can simulate the different modes of infection, and carry in different defence areas respectively by the experimental situation of different characteristic
Coupled vibration waveform is taken, convenient for research is identified to vibration performance.The method compact in design of the present invention, it is easy to operate, have
Stronger practical value.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Description of the drawings
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
The detailed description of one step, wherein：
Attached drawing 1 is the layout structure schematic diagram of the present invention.
Specific implementation mode
Hereinafter reference will be made to the drawings, and the preferred embodiment of the present invention is described in detail.It should be appreciated that preferred embodiment
Only for illustrating the present invention, the protection domain being not intended to be limiting of the invention.
As shown in Figure 1, the experiment simulation layout method based on fiber Rayleigh scattering Vibration Identification system of the present invention, uses
Optical cable is vibrated as sensing unit, and the environment in in-site modeling distribution cable channel is complicated, it will by connecting packet by whole optical cable
Circumference is divided into 4 defence areas 4, and each defence area carries out defence area configuration according to the demand of user, utilizes the computer in central machine room 1
Processing platform 101 is acquired data and controls and realizes the detection of long range, a wide range of circumference defence area.
In the present embodiment, defence area 4 includes defence area I 401, defence area II 402, defence area III 403 and defence area IV 404 4
Defence area；
Defence area I 401：From the aerial cabling in laboratory, including segmentation packet I and segmentation packet II, wherein segmentation packet I is placed on experiment
Interior, segmentation packet II are placed in surge voltage laboratory, and defence area I is for simulating more faint invasion mode；In the present embodiment,
50 meters of the track lengths of defence area I, optical cable are 12 core optical cables；
Defence area II 402：Underground on direct-burried to the place side in laboratory east side, including segmentation packet III and segmentation packet IV, point
Steamed sandwich III, IV is placed in independence, and defence area II is used to acquire under different distance variable signal under vibration source operating mode；The present embodiment
In, about 25 meters of track lengths, optical cable is 8 core optical cables；
Defence area III 403：It from outlet between independence, under wayside, again returns between independence, defence area III is for acquiring
People's row, vehicle pass through the vibration signal that changes under, big machinery working condition；In the present embodiment, about 90 meters of unidirectional track lengths,
Double direction wire arrangement length has 180 meters altogether, and optical cable is 8 core optical cables；
Defence area IV 404：Enter under wayside from outlet between independence, pass through road, to southern side after lowerly into cable duct, including
In laboratory, defence area IV, which is used to acquire different operating modes etc., believes the invasion of optical fiber under cable duct environment by segmentation packet V, segmentation packet V
Number；In the present embodiment, totally 35 meters of track lengths,
It should be further noted that defence area I is located at interior, relatively extraneous natural environment influence is less, convenient analog compared with
It is main to acquire static state, low-frequency vibration, directly disturb, vibrational waveform under gentle breeze environment for faint invasion mode.
Defence area II be located at by the ground of laboratory outer space, optical fiber is embedded in 25 centimetres of underground, and soil is used in combination to bury, be not directly and
What hardstand was connected, vibration can be decayed, variable signal under vibration source operating mode under main acquisition different distance.
The defence areas defence area III are located on the roadside to come in and go out outside laboratory, extend to basketball court corner, as defence area 2,
It is embedded in 25 centimetres of underground, soil is used in combination to bury, is not directly to be connected with hardstand, vibration can be decayed.Main acquisition people row,
Vehicle passes through the vibration signal that changes under, big machinery working condition.
Defence area IV is located at cable duct edge, and optical fiber is beaten with setscrew on furrow bank, and optical cable is tied up on screw.Mould
Quasi- cable duct pipeline environment.Mainly acquire the invasion signal to optical fiber under cable duct environment such as different operating modes
Monitor keyboard 102, central machine room 1 and external monitoring software are additionally provided in the present embodiment, in central machine room
System 2, monitoring hardware system 3 are connected, monitoring hardware system, and wireless transmitter receiver device is provided in 3, for implement transmission and
Receive monitoring data.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention
Right in.
Claims (8)
1. the experiment simulation layout method based on fiber Rayleigh scattering Vibration Identification system, it is characterised in that：The method uses
Optical cable is vibrated as sensing unit, and the environment in in-site modeling distribution cable channel is complicated, it will by connecting packet by whole optical cable
Circumference is divided at least four defence area (4), and each defence area carries out defence area configuration according to the demand of user, using in central machine room (1)
Computer disposal platform (101) data are acquired and are controlled and realize over long distances, the detection in a wide range of circumference defence area.
2. the experiment simulation layout method according to claim 1 based on fiber Rayleigh scattering Vibration Identification system, special
Sign is：The defence area (4) includes defence area I (401), defence area II (402), defence area III (403) and defence area IV (404) four anti-
Area；
Defence area I (401)：From the aerial cabling in laboratory, including segmentation packet I and segmentation packet II, wherein segmentation packet I is placed on laboratory
Interior, segmentation packet II is placed in surge voltage laboratory, and defence area I is for simulating more faint invasion mode；
Defence area II (402)：Underground on direct-burried to the place side in laboratory east side, including segmentation packet III and segmentation packet IV, segmentation packet
III, IV are placed in independence, and defence area II is used to acquire under different distance variable signal under vibration source operating mode；
Defence area III (403)：It from outlet between independence, under wayside, again returns between independence, defence area III is for acquiring people
Row, vehicle pass through the vibration signal that changes under, big machinery working condition；
Defence area IV (404)：Enter under wayside from outlet between independence, pass through road, to southern side after lowerly into cable duct, including segmentation
V is wrapped, segmentation packet V is in laboratory, invasion signals of the defence area IV for acquiring different operating modes etc. to optical fiber under cable duct environment.
3. the experiment simulation layout method according to claim 1 or 2 based on fiber Rayleigh scattering Vibration Identification system,
It is characterized in that：Monitor keyboard (102) is additionally provided in the central machine room, the central machine room (1) and external monitoring are soft
Part system (2), monitoring hardware system (3) are connected.
4. the experiment simulation layout method according to claim 3 based on fiber Rayleigh scattering Vibration Identification system, special
Sign is：The monitoring hardware system (3) is inner to be provided with wireless transmitter receiver device.
5. the experiment simulation layout method according to claim 2 based on fiber Rayleigh scattering Vibration Identification system, special
Sign is：The track lengths of the defence area I are 50m.
6. the experiment simulation layout method according to claim 2 based on fiber Rayleigh scattering Vibration Identification system, special
Sign is：The track lengths of defence area II are 25m.
7. the experiment simulation layout method according to claim 2 based on fiber Rayleigh scattering Vibration Identification system, special
Sign is：About 90 meters of the unidirectional track lengths of the defence area III, double direction wire arrangement length are 180 meters altogether.
8. the experiment simulation layout method according to claim 2 based on fiber Rayleigh scattering Vibration Identification system, special
Sign is：The track lengths of the defence area IV are totally 35 meters.
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| CN201810354243.3A CN108614930A (en) | 2018-04-19 | 2018-04-19 | Experiment simulation layout method based on fiber Rayleigh scattering vibration identification system |
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Cited By (1)
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| CN109520692A (en) * | 2018-12-20 | 2019-03-26 | 泉州亿兴电力有限公司 | A kind of vibration signal propagation test equipment and method |
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| CN103247122A (en) * | 2012-02-08 | 2013-08-14 | 北京京安能科技有限公司 | One cable type optical cable vibration detecting and alarming system |
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Application publication date: 20181002 |