CN106871865A - Transformer station's sedimentation monitoring system based on fibre-optical grating sensor network - Google Patents
Transformer station's sedimentation monitoring system based on fibre-optical grating sensor network Download PDFInfo
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- CN106871865A CN106871865A CN201710144251.0A CN201710144251A CN106871865A CN 106871865 A CN106871865 A CN 106871865A CN 201710144251 A CN201710144251 A CN 201710144251A CN 106871865 A CN106871865 A CN 106871865A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention relates to a kind of transformer station's sedimentation monitoring system based on fibre-optical grating sensor network, multiple fibre-optical grating sensors are arranged on structure foundation and transformer station's main equipment ground composition distributed fiber grating array networking in transformer station, distributed fiber grating array networking signal feeding demodulator optical signalling is converted to data signal, data signal send concentrator, the data of concentrator data are sent to data server in real time and are stored by Zigbee network and Routing Protocol, settlement monitoring carries out real-time processing output result with early warning information management module to the settling data stored in data server.The operating efficiency of staff is greatly enhanced, substantial amounts of settling data is obtained in real time, the time of monitoring is short, is not influenceed by adverse circumstances, and the degree of accuracy is greatly improved.
Description
Technical field
It is more particularly to a kind of based on fibre-optical grating sensor network the present invention relates to a kind of signal monitoring technology
Transformer station's sedimentation monitoring system.
Background technology
Transformer station is the important component of power network, and it plays voltage of transformation in power system, receives and distribution electric energy, control
The effect of the flow direction and adjustment voltage of electric power processed.Building in transformer station is the power infrastructures for ensureing power grid security, by
Built mostly in remote area in transformer station, the geological conditions and weather conditions of there often cause the ground of transformer station to sink
Drop.Security issues become increasingly urgent during construction period and later stage run for transformer substation foundation building.At present, to transformer station
The monitoring method of settlement of foundation is mainly using level monitoring method.This method is to be arranged on existing by artificial periodical inspection inspection
The sedimentation pile crown of settlement monitoring point, the change observed between each settlement observation point and datum mark using precision level is sentenced
Disconnected settlement of foundation.But because the workload of this monitoring method is extremely tedious, and the data volume for measuring is opposite less, prison
That surveys is time-consuming more long, and easily effected by environmental factors so that the accuracy of judgement is not good.
Fibre Optical Sensor is to detect various physical parameters in engineering based on the unique optical characteristics of optical fiber and sensing characteristicses.
It has sensitivity higher relative to conventional method, is difficult by electromagnetic interference, and good insulating is corrosion-resistant, long working life, collection
The acquisition of physical parameter information and transmission one, and the advantages of simple structure, small volume, lightweight, little power consumption.Can be used for
The physical parameters such as measuring strain, temperature, pressure, displacement.
The main Monitoring method of the subsidence of prior art has:Simple ocular estimate, settlement gauge algorithm deforms transformation approach.It is existing
Settlement measuring device direct measurement fix pole brand and sedimentation building between relative displacement size, so as to obtain settlement of foundation
The method of value.Under water during jackstone preloading basement process, fix bar is possible to be dumped loading shock and deform upon, can be straight
Connect the accuracy for having influence on measurement result.And this monitoring method workload is extremely tedious, and the data volume for measuring is opposite
It is less, monitoring it is time-consuming more long, and easily it is effected by environmental factors so that the accuracy of measurement is not good.
The content of the invention
The present invention be directed to the problem that Monitoring method of the subsidence is present, it is proposed that one kind is based on fibre-optical grating sensor
Transformer station's sedimentation monitoring system of network, the settlement point of each monitoring can install a fiber bragg grating settlement sensor, if prison
The sedimentation surveyed in region, then can be distributed many settlement monitoring points in the region, and these distributed fiber gratings are by dividing
The settling data of cloth networking technology pickup area.And this data is first sent to the concentrator in each region, each concentrator
The settling data of collection is sent to Surveillance center, the backstage transformer station of Surveillance center by node by Zigbee radio sensing networks
Foundation Settlement Monitor can in real time show sedimentation information with early warning information management software, while having transformer substation foundation Subsidence trend point
Analysis and warning function.
The technical scheme is that：A kind of settlement monitoring system of transformer station based on fibre-optical grating sensor network
System, multiple fibre-optical grating sensors are arranged on structure foundation and transformer station's main equipment ground group composition in transformer station
Cloth optical fiber optical grating array networking, distributed fiber grating array networking signal feeding demodulator optical signalling is converted to digital letter
Number, data signal send the data of concentrator, concentrator that data are sent into data in real time by Zigbee network and Routing Protocol
Server is stored, and settlement monitoring is carried out in real time with early warning information management module to the settling data stored in data server
Treatment output result.
The distributed fiber grating array networking, i.e., write multiple Fiber Bragg Grating FBGs on an optical fiber, multiple
There is certain spacing between the Bragg wavelength of Fiber Bragg Grating FBG, or Bragg wavelength is had into multiple at regular intervals
Fiber Bragg Grating FBG is serially connected on an optical fiber by welding or other method, and the method for then asking location by wavelength-division obtains same
The information of the tested field on a piece fibre circuit at each Fiber Bragg Grating FBG.
The demodulator uses matched FBG demodulation by filter method, is made by a drivable reference optical fiber grating sensor
It is wave filter, sensing grating reflection wavelength is contrasted with reference optical fiber grating sensor, if two consistent wavelengths, light letter
Number will be reflected, and can be shown that demodulated fiber grating is passed by measuring the maximum reflection power of reference optical fiber grating sensor
The wavelength shift of sensor grating.
The beneficial effects of the present invention are：Transformer station sedimentation prison of the present invention based on fibre-optical grating sensor network
Examining system, is greatly enhanced the operating efficiency of staff, and substantial amounts of settling data is obtained in real time, and the time of monitoring is short, does not receive
Adverse circumstances influence, and the degree of accuracy is greatly improved.
Brief description of the drawings
Fig. 1 is that transformer station sedimentation monitoring system framework of the present invention based on fibre-optical grating sensor network is illustrated
Figure；
Fig. 2 is transformer station sedimentation monitoring system constructing communication network and data of the present invention based on fibre-optical grating sensor network
Transmission schematic diagram；
Fig. 3 is Fiber Bragg Grating FBG distributed networking Technical Architecture schematic diagram of the present invention.
Fig. 4 is Fiber Bragg Grating FBG distributed networking demodulation techniques configuration diagram of the present invention.
Specific embodiment
Transformer station's sedimentation monitoring system configuration diagram of fibre-optical grating sensor network is based on as shown in Figure 1,
The ground of the structure foundation in transformer station, transformer station's main equipment is entered using distribution type fiber-optic Bragg grating settlement sensor
Row regional subsidence is detected and monitored.Constructing communication network as shown in Figure 2 and data transfer schematic diagram, by the solution of Fiber Bragg Grating FBG
Conditioning technology converts optical signals into data signal, recycles distributed group network technology and concentrator to carry out collecting for data signal
And transmission, the data of concentrator pass through Zigbee network and Routing Protocol data is sent to data server in real time and is deposited
Storage, settlement monitoring is managed with early warning information to carry out extract real-time, analysis to the settling data stored in server and shows, while
Early warning information push is carried out using result of the warning algorithm model to being obtained after data analysis is settled.Multiple concentrators are to one
Zigbee network, in order to reach the automatic purpose for searching sedimentation collection point, can be by all collection points of region base settling data
Distribution type fiber-optic Bragg grating settlement sensor address registration settlement monitoring and early warning information management in, by poll side
Method realizes the automatic detection of concentrator.
Fiber Bragg Grating FBG distributed networking Technical Architecture schematic diagram as shown in Figure 3, distributed fiber grating networking is
Multiple Fiber Bragg Grating FBGs are write on an optical fiber, there is certain spacing between their Bragg wavelength, or will
Bragg wavelength is had multiple Fiber Bragg Grating FBGs at regular intervals and is serially connected on an optical fiber by welding or other method,
Then the method for asking location by wavelength-division obtains the information of the tested field on same fibre circuit at each Fiber Bragg Grating FBG.
Then the information on fibre circuit is sent on concentrator, then is linked into Zigbee wireless networks by concentrator.
Fiber Bragg Grating FBG distributed networking demodulation techniques configuration diagram as shown in Figure 4, (FBG) demodulator includes wide spectrum optical
Source, three-dB coupler, matched fiber grating, PD devices, the (FBG) demodulator of distribution type fiber-optic Bragg grating networking use matched FBG
Demodulation by filter method, wave filter is used as by a drivable reference FBG, and sensing grating reflection wavelength is carried out with reference to FBG
Contrast, if two consistent wavelengths, optical signal will be reflected, and be able to can be drawn by the maximum reflection power measured with reference to FBG
The wavelength shift of the fiber-optic grating sensor grating for being demodulated.The method simple structure, anti-outside noise interference performance is strong, spirit
Sensitivity is high, and is easy to distributed measurement and multiple spot monitoring.
The FBG sensing networks, Zigbee radio sensing networks, Monitoring Data center, settlement monitoring and early warning information pipe
Reason software collectively constitutes the communication data net and software systems of the transformer station's sedimentation monitoring system based on Distributed FBG sensing network
Framework, the regional subsidence data gathered by fiber bragg grating settlement sensor node, regional subsidence data by Zigbee network and
Router is accessed.
Claims (3)
1. a kind of transformer station's sedimentation monitoring system based on fibre-optical grating sensor network, it is characterised in that Duo Gefen
Cloth fiber-optic grating sensor is arranged on structure foundation and transformer station's main equipment ground composition distribution type fiber-optic in transformer station
Grating array networking, distributed fiber grating array networking signal feeding demodulator optical signalling is converted to data signal, numeral
Signal send the data of concentrator, concentrator data to be sent to data server in real time and is entered by Zigbee network and Routing Protocol
Row storage, settlement monitoring carries out real-time processing output with early warning information management module to the settling data stored in data server
As a result.
2. transformer station's sedimentation monitoring system of fibre-optical grating sensor network is based on according to claim 1, and it is special
Levy and be, the distributed fiber grating array networking writes multiple Fiber Bragg Grating FBGs, Duo Geguang that is, on an optical fiber
There is certain spacing between the Bragg wavelength of fine Bragg grating, or Bragg wavelength is had into multiple light at regular intervals
Fine Bragg grating is serially connected on an optical fiber by welding or other method, and the method for then asking location by wavelength-division obtains same
The information of the tested field on root fibre circuit at each Fiber Bragg Grating FBG.
3. the transformer station's sedimentation monitoring system based on fibre-optical grating sensor network according to claim 1 or claim 2, its
It is characterised by, the demodulator uses matched FBG demodulation by filter method, by a drivable reference optical fiber grating sensor
As wave filter, sensing grating reflection wavelength is contrasted with reference optical fiber grating sensor, if two consistent wavelengths, light
Signal will be reflected, and can draw demodulated fiber grating by measuring the maximum reflection power of reference optical fiber grating sensor
The wavelength shift of sensor grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710144251.0A CN106871865A (en) | 2017-03-10 | 2017-03-10 | Transformer station's sedimentation monitoring system based on fibre-optical grating sensor network |
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| CN201710144251.0A CN106871865A (en) | 2017-03-10 | 2017-03-10 | Transformer station's sedimentation monitoring system based on fibre-optical grating sensor network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655036A (en) * | 2018-12-25 | 2019-04-19 | 云南电网有限责任公司迪庆供电局 | A kind of sedimentation of substation and electric pole stress monitoring system |
| CN113218364A (en) * | 2021-04-29 | 2021-08-06 | 武汉理工大学 | House building safety monitoring system based on optical fiber sensing technology |
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| CN102221332A (en) * | 2011-04-01 | 2011-10-19 | 西安科技大学 | Fiber grating multi-point sensing device for unconsolidated strata as well as monitoring system and method |
| CN103134432A (en) * | 2013-01-25 | 2013-06-05 | 南京大学 | Bridge displacement monitoring system based on optical fiber sensors |
| CN103175508A (en) * | 2011-12-23 | 2013-06-26 | 同方威视技术股份有限公司 | Monitoring for settlement of railroad bed |
| CN206601125U (en) * | 2017-03-10 | 2017-10-31 | 上海电力学院 | Transformer station's sedimentation monitoring system based on fibre-optical grating sensor network |
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2017
- 2017-03-10 CN CN201710144251.0A patent/CN106871865A/en active Pending
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| CN102221332A (en) * | 2011-04-01 | 2011-10-19 | 西安科技大学 | Fiber grating multi-point sensing device for unconsolidated strata as well as monitoring system and method |
| CN103175508A (en) * | 2011-12-23 | 2013-06-26 | 同方威视技术股份有限公司 | Monitoring for settlement of railroad bed |
| CN103134432A (en) * | 2013-01-25 | 2013-06-05 | 南京大学 | Bridge displacement monitoring system based on optical fiber sensors |
| CN206601125U (en) * | 2017-03-10 | 2017-10-31 | 上海电力学院 | Transformer station's sedimentation monitoring system based on fibre-optical grating sensor network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655036A (en) * | 2018-12-25 | 2019-04-19 | 云南电网有限责任公司迪庆供电局 | A kind of sedimentation of substation and electric pole stress monitoring system |
| CN109655036B (en) * | 2018-12-25 | 2021-04-20 | 云南电网有限责任公司迪庆供电局 | Transformer substation subsides and pole stress monitoring system |
| CN113218364A (en) * | 2021-04-29 | 2021-08-06 | 武汉理工大学 | House building safety monitoring system based on optical fiber sensing technology |
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Application publication date: 20170620 |