CN102261893A - Online strain detection device for transmission towers - Google Patents

Online strain detection device for transmission towers Download PDF

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Publication number
CN102261893A
CN102261893A CN 201110111013 CN201110111013A CN102261893A CN 102261893 A CN102261893 A CN 102261893A CN 201110111013 CN201110111013 CN 201110111013 CN 201110111013 A CN201110111013 A CN 201110111013A CN 102261893 A CN102261893 A CN 102261893A
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CN
China
Prior art keywords
optical sensor
fibre optical
optical fiber
electric power
processor
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Pending
Application number
CN 201110111013
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Chinese (zh)
Inventor
冀晋川
李文亮
毕虎才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
Original Assignee
Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd filed Critical Electric Power Research Institute of State Grid Shanxi Electric Power Co Ltd
Priority to CN 201110111013 priority Critical patent/CN102261893A/en
Publication of CN102261893A publication Critical patent/CN102261893A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an online strain detection device for transmission towers, which solves the problem that online early-warning on strains of transmission towers can not be performed in the prior art. The online strain detection device comprises a transmission tower (1), an optical fiber sensor (2), an optical fiber (3), an optical fiber sensor demodulation system (5), a solar power supply system (4) and a remote monitoring analysis system (6), wherein the optical fiber sensor (2) is an optical fiber grating sensor, the optical fiber sensor (2) is adhered to a key structure part of the transmission tower (1), the optical fiber sensor (2) is connected with the optical fiber sensor demodulation system (5) by the optical fiber (3), and the solar power supply system (4) is connected with the optical fiber sensor demodulation system (5); and an embedded PC processor (10) is connected with a spectral analysis module (9) so as to realize the acceptation and analysis on optical signals reflected by the optical fiber sensor (2), and a wireless signal receiver is arranged in the remote monitoring analysis system (6). By using the device disclosed by the invention, the on-line detection and early-warning on the transmission tower are realized.

Description

The online strain-Sensing device of a kind of electric power pylon
Technical field
The present invention relates to a kind of strain-Sensing device, particularly a kind of device that online detection is carried out in the strain of the iron tower that transmits electric power.
Background technology
Electric power pylon is carrying the high-tension electricity handling cable, and the body of the tower of electric power pylon can have a strong impact on the safe operation of electrical network because strain deformation causes collapsing.At present, mainly adopt the mode of manual inspection, existence can not find in time that the problem of online early warning takes place and can not reach in strain to the strain detecting of electric power pylon.
Summary of the invention
The invention provides the online strain-Sensing device of a kind of electric power pylon, the problem of online early warning can not be in time found and can not be reached in the strain to electric power pylon that has solved the prior art existence.
The present invention overcomes the above problems by following scheme:
The online strain-Sensing device of a kind of electric power pylon, comprise electric power pylon, Fibre Optical Sensor, optical fiber, Fibre Optical Sensor demodulating system, solar electric power supply system and remote monitoring analytic system, described Fibre Optical Sensor is a fiber-optic grating sensor, Fibre Optical Sensor is attached on the key structure parts of electric power pylon by welding, Fibre Optical Sensor links together by optical fiber and Fibre Optical Sensor demodulating system, and solar electric power supply system and Fibre Optical Sensor demodulating system link together; Described Fibre Optical Sensor demodulating system is by the optical channel handover module, spectral analysis module, light source module, built-in PC processor and wireless signal generator are formed, the built-in PC processor is connected the light signal of control to the Fibre Optical Sensor emission with light source module, the built-in PC processor is connected the switching with the control path channels with the optical channel handover module, the built-in PC processor is connected with spectral analysis module realizing to be accepted and analyzes the light signal of Fibre Optical Sensor reflected back, built-in PC processor and wireless signal generator link together, in described remote monitoring analytic system, be provided with wireless signal receiver, this wireless signal receiver be arranged in the Fibre Optical Sensor demodulating system the wireless connections of wireless signal generator together.
The optical channel that is provided with in the described optical channel handover module is four the tunnel, and this four road optical channel is connected with Fibre Optical Sensor respectively.
The present invention utilizes the detection system that makes up based on fiber-optic grating sensor, can in time obtain the real-time status of electric power pylon strain, has realized the online detection and the early warning of electric power pylon.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the structural representation of Fibre Optical Sensor demodulating system 5 of the present invention.
Specific embodiment
The online strain-Sensing device of a kind of electric power pylon, comprise electric power pylon 1, Fibre Optical Sensor 2, optical fiber 3, Fibre Optical Sensor demodulating system 5, solar electric power supply system 4 and remote monitoring analytic system 6, described Fibre Optical Sensor 2 is a fiber-optic grating sensor, Fibre Optical Sensor 2 is attached on the key structure parts of electric power pylon 1 by welding, Fibre Optical Sensor 2 links together by optical fiber 3 and Fibre Optical Sensor demodulating system 5, and solar electric power supply system 4 links together with Fibre Optical Sensor demodulating system 5; Described Fibre Optical Sensor demodulating system 5 is by optical channel handover module 8, spectral analysis module 9, light source module 7, built-in PC processor 10 and wireless signal generator 11 are formed, built-in PC processor 10 is connected the light signal of control to Fibre Optical Sensor 2 emissions with light source module 7, built-in PC processor 10 is connected the switching with the control path channels with optical channel handover module 8, built-in PC processor 10 is connected with spectral analysis module 9 realizing to be accepted and analyzes the light signal of Fibre Optical Sensor 2 reflected backs, built-in PC processor 10 links together with wireless signal generator 11, in described remote monitoring analytic system 6, be provided with wireless signal receiver, this wireless signal receiver be arranged in the Fibre Optical Sensor demodulating system 5 11 wireless connections of wireless signal generator together.
The optical channel that is provided with in the described optical channel handover module 8 is four the tunnel, and this four road optical channel is connected with Fibre Optical Sensor respectively.
The online strain-Sensing device of electric power pylon among the present invention comprises 4 parts:
Fibre Optical Sensor: be used for experiencing the variation of electric power pylon structural strain, Fibre Optical Sensor is made based on fiber grating, is installed in the key position of electric power pylon structure by welding or surface-pasted mode.
The Fibre Optical Sensor demodulating system: the wavelength of realizing fiber grating detects and the strain inverting, and utilizes wireless sending module to realize the wireless data teletransmission.
Structural strain and material failure analytic system: the mechanical property of material in the strain that detects the electric power pylon steel obtain by the contrast Fibre Optical Sensor and the database, analyze the lost efficacy probability of generation of practical structures.Judge according to the numerical values recited of dependent variable whether structure plastic yield takes place, exceed the yield point of material, then send early warning signal as the deflection of fruit structure.
Solar electric power supply system: utilize solar cell to collect sun power, and luminous energy is converted into electric energy, offer Fibre Optical Sensor demodulating system power supply at the scene.
The course of work of the online strain-Sensing device of electric power pylon is as follows:
Utilize solar panel power supply to be provided for the Fibre Optical Sensor demodulating system, Fibre Optical Sensor is installed in the key position of electric power pylon structure.When electric power pylon is subjected to cable, icing or wind action, to cause that structural strain changes, cause the fiber grating reflected light signal wavelength variations in the modulation optical fiber sensor, reflected light after Fibre Optical Sensor will be modulated turns back to demodulating system, from light signal, extract strain information and initial analysis on the spot, send data by wireless sending module to remote monitoring center then.Surveillance center is input in structural strain and the material failure analytic system after receiving data, judges whether the structural strain numerical value that Fibre Optical Sensor detects exceeds the strain limit value of setting and provide early warning signal.

Claims (2)

1. online strain-Sensing device of electric power pylon, comprise electric power pylon (1), Fibre Optical Sensor (2), optical fiber (3), Fibre Optical Sensor demodulating system (5), solar electric power supply system (4) and remote monitoring analytic system (6), it is characterized in that, described Fibre Optical Sensor (2) is a fiber-optic grating sensor, Fibre Optical Sensor (2) is attached on the key structure parts of electric power pylon (1) by welding, Fibre Optical Sensor (2) links together by optical fiber (3) and Fibre Optical Sensor demodulating system (5), and solar electric power supply system (4) links together with Fibre Optical Sensor demodulating system (5); Described Fibre Optical Sensor demodulating system (5) is by optical channel handover module (8), spectral analysis module (9), light source module (7), built-in PC processor (10) and wireless signal generator (11) are formed, built-in PC processor (10) is connected the light signal of control to Fibre Optical Sensor (2) emission with light source module (7), built-in PC processor (10) is connected the switching with the control path channels with optical channel handover module (8), built-in PC processor (10) is connected with spectral analysis module (9) realizing to be accepted and analyzes the light signal of Fibre Optical Sensor (2) reflected back, built-in PC processor (10) links together with wireless signal generator (11), in described remote monitoring analytic system (6), be provided with wireless signal receiver, this wireless signal receiver be arranged in the Fibre Optical Sensor demodulating system (5) wireless signal generator (11) wireless connections together.
2. the online strain-Sensing device of a kind of electric power pylon according to claim 1 is characterized in that, the optical channel that is provided with in the described optical channel handover module (8) is four the tunnel, and this four road optical channel is connected with Fibre Optical Sensor respectively.
CN 201110111013 2011-04-29 2011-04-29 Online strain detection device for transmission towers Pending CN102261893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN 201110111013 CN102261893A (en) 2011-04-29 2011-04-29 Online strain detection device for transmission towers

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104272079A (en) * 2012-02-09 2015-01-07 Osmos股份有限公司 A monitoring device, system and method for the monitoring of an area of building or land, using at least one light waveguide
CN108548568A (en) * 2018-07-13 2018-09-18 广东电网有限责任公司江门供电局 A kind of transmission tower on-line monitoring system with load-bearing monitor
CN110631638A (en) * 2019-10-18 2019-12-31 中冶南方工程技术有限公司 Electric power iron tower monitoring system based on optical fiber sensing
CN110707798A (en) * 2019-10-16 2020-01-17 安徽中科智泰光电测控科技有限公司 Low-power consumption FBG system device based on solar power supply and wireless transmission

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JP2005057896A (en) * 2003-08-05 2005-03-03 Uchihashi Estec Co Ltd Abnormal heating monitoring system for overhead wire
CN101602175A (en) * 2008-06-12 2009-12-16 四平市变速机械厂 Multi-channel real-time online optical fiber displacement detecting and controlling instrument
CN101614602A (en) * 2009-08-03 2009-12-30 电子科技大学 Electricity transmission line monitoring method and device
CN101620000A (en) * 2009-07-17 2010-01-06 国家电网公司 Calculating method of ice concentration of transmission line
CN101793503A (en) * 2010-03-26 2010-08-04 昆明理工大学 Fiber Bragg rating measurement method for deformation of duckbill-type cross arm primary sheets
CN202066486U (en) * 2011-04-29 2011-12-07 山西省电力公司电力科学研究院 Power transmission iron tower on-line strain detection device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005057896A (en) * 2003-08-05 2005-03-03 Uchihashi Estec Co Ltd Abnormal heating monitoring system for overhead wire
CN101602175A (en) * 2008-06-12 2009-12-16 四平市变速机械厂 Multi-channel real-time online optical fiber displacement detecting and controlling instrument
CN101620000A (en) * 2009-07-17 2010-01-06 国家电网公司 Calculating method of ice concentration of transmission line
CN101614602A (en) * 2009-08-03 2009-12-30 电子科技大学 Electricity transmission line monitoring method and device
CN101793503A (en) * 2010-03-26 2010-08-04 昆明理工大学 Fiber Bragg rating measurement method for deformation of duckbill-type cross arm primary sheets
CN202066486U (en) * 2011-04-29 2011-12-07 山西省电力公司电力科学研究院 Power transmission iron tower on-line strain detection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104272079A (en) * 2012-02-09 2015-01-07 Osmos股份有限公司 A monitoring device, system and method for the monitoring of an area of building or land, using at least one light waveguide
CN108548568A (en) * 2018-07-13 2018-09-18 广东电网有限责任公司江门供电局 A kind of transmission tower on-line monitoring system with load-bearing monitor
CN110707798A (en) * 2019-10-16 2020-01-17 安徽中科智泰光电测控科技有限公司 Low-power consumption FBG system device based on solar power supply and wireless transmission
CN110631638A (en) * 2019-10-18 2019-12-31 中冶南方工程技术有限公司 Electric power iron tower monitoring system based on optical fiber sensing

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Effective date: 20121017

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20121017

Address after: 030001 Qingnian Road, Shanxi, No. 6,

Applicant after: Electric Power Research Institute of Shanxi Electric Power Company

Applicant after: State Grid Corporation of China

Address before: 030001 Qingnian Road, Shanxi, No. 6,

Applicant before: Electric Power Research Institute of Shanxi Electric Power Company

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20111130