CN203100690U - Slope real-time monitoring system based on BOTDR (Brillouin Optical Time-domain Reflectometer) - Google Patents
Slope real-time monitoring system based on BOTDR (Brillouin Optical Time-domain Reflectometer) Download PDFInfo
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- CN203100690U CN203100690U CN 201220640959 CN201220640959U CN203100690U CN 203100690 U CN203100690 U CN 203100690U CN 201220640959 CN201220640959 CN 201220640959 CN 201220640959 U CN201220640959 U CN 201220640959U CN 203100690 U CN203100690 U CN 203100690U
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Abstract
The utility model discloses a slope real-time monitoring system based on a BOTDR (Brillouin Optical Time-domain Reflectometer). The system is characterized by comprising an optical fiber monitoring network, a monitoring room, a central monitoring center and a remote client, wherein the optical fiber monitoring network is arranged on slopes, and connected with the monitoring room by optical fibers; the monitoring room communicates with the central monitoring center through a local area network; and the central monitoring center communicates with the a remote client through the Internet. According to the utility model, the system is used for the real-time monitoring of landslides of high-speed rail soil slopes, and the system is advantageous in that: 1. the construction and the later maintenance are convenient; 2. long-distance monitoring can be realized, reaching a range of tens of kilometer; 3. the landslides of the slopes can be monitored and early warned in real time, on line, permanently and in all weather; and 4. the optical fibers are electrically passive and not influenced by electromagnetic interference, being applicable in severe environments.
Description
Technical field
The utility model relates to a kind of distributing optical fiber sensing field, specifically, relates to a kind of system that high ferro slope and land slide situation is monitored in real time that is used for based on the BOTDR technology.
Background technology
Optical fiber sensing technology is to follow the development of Fibre Optical Communication Technology and develop rapidly in the seventies in 20th century, it be a kind of be carrier with the light wave, optical fiber is medium, a kind of novel sensing technology of perception and the extraneous measured signal of transmission.These Fibre Optical Sensors can be divided three classes again according to reach: point sensor (as optical fiber micro-bending sensor, optical fiber Fabry-Perot sensor, optical fiber Bragg grating sensor etc.), integrator sensor (as optical fibre Michelson interferometer and optical fiber Mach-Zehnder interferometer), distributed sensor (as the Temperature Distribution formula sensor that utilizes Raman scattering effect to make).A kind of as distributed sensor, BOTDR(Brillouin Optical Time-domain Reflectometer), Chinese " Brillouin scattering time domain reflectometer " by name, be a kind of distributive fiber optic strain sensor, the fibre strain in can the tens of kilometer range of continuous coverage is distributed.Distributed fiberoptic sensor based on Brillouin's optical time domain reflection technology is a high-end technology of researching and developing in the distributing optical fiber sensing field in recent years successfully, it except anti-electromagnetic interference (EMI) with general optical fiber sensing technology, corrosion-resistant, measurement range is wide, be convenient to be multiplexed into the advantages such as net, miniaturization and maintenance cost are low, the most important thing is to obtain the strain and the temperature information of optical fiber any point along the line.
High ferro soil-slope along the line is under the double action of the vibration that rainfall and high-speed train produce, and shallow failure phenomenon very easily takes place for it.Therefore, high ferro side slope health status is monitored in real time, and the health status to monitoring target realizes early warning in advance, not only can avoid the generation of some accidents, avoid the unnecessary casualties and the loss of national wealth, and can effectively save manual inspection time, reduction human cost again.The advantage of BOTDR technology is suitable for the soil-slope health monitoring, and the deformation of grasping side slope dynamically reaches and realizes the landslide early warning, and this has certain realistic meaning to the safe operation that guarantees high ferro.
Summary of the invention
The utility model purpose provides a kind of high ferro soil-slope landslide situation system of monitoring in real time that can be used in.System of the present utility model can monitor the deformation of high ferro side slope in real time, and can automatically whether send side slope healthy early warning signal according to the data decision that is monitored.
The utility model adopts following technical scheme for achieving the above object:
A kind of side slope real-time monitoring system based on BOTDR is characterized in that: described system includes fiber-optic monitoring network, Control Room, CSRC center and Terminal Server Client; Described fiber-optic monitoring network settings are on side slope, and described fiber-optic monitoring network is connected with Control Room by optical fiber, and Control Room is communicated by letter with the CSRC center by LAN (Local Area Network), communicate by letter with Terminal Server Client by the Internet in the CSRC center again.
It is further characterized in that: point of fixity and the optical fiber that is connected each point of fixity are arranged in the described fiber-optic monitoring network, optical fiber is at the approximate snakelike cabling mode of domatic employing, on wiring path, a point of fixity is set every a segment distance, described point of fixity adopts drill rod or other easily to knock in the fixed component of the soil body, and the optical fiber that connects each point of fixity sticks together them on fixed component and with bonding agent.
Further: the point of fixity that is arranged on domatic trailing edge top is as the monitoring basic point, and fixed component is squeezed into the soil body degree of depth herein and reached 1.0m at least, and in all the other fixed point, fixed component is squeezed into the degree of depth of the soil body at about 0.5m.
Its further feature also is: comprise BOTDR main frame and monitoring computer in the described Control Room, connect by network that described BOTDR main frame is used to receive the soil body deformation data of being sensed at monitored point by optical fiber, carry out data processing and report to the police.
Based on technique scheme, the system that can be used in the real-time monitoring of high ferro soil-slope landslide situation of the present utility model has following technological merit in application:
1. construct and convenient later maintenance: easy for installation, only need optical fiber is imbedded in the slope table layer soil body to be monitored, and a point of fixity is set every a segment distance, fixed component can adopt drill rod or other easily to knock in the associated components of the soil body, then optical fiber and fixed component are bonded together, so that every section optical fiber all is in tension; Aspect later maintenance, when causing optical fiber when very big landslide takes place and fractureing, only need send someone on-the-spotly to get final product well with the heat sealing machine fine welding of will breaking.
2. long distance monitoring can be realized, tens of kilometers can be reached.
3. can monitor and early warning the slope and land slide situation real-time, online, permanent, round-the-clockly;
4. optical fiber itself is that electricity is passive, and is not subjected to electromagnetic interference (EMI), is fit to severe environment applications.
Description of drawings
Fig. 1 is that the utility model is used for the high ferro slope and land slide situation system architecture synoptic diagram of monitoring in real time.
1,2,3,4,5,6,7,8,9,10,11,12: point of fixity
13: domatic 14: the soil body 15: basement rock 16: front bottom end 17: the trailing edge top
18: optical fiber 19:BOTDR main frame 20: monitoring computer 21: Control Room
22: CSRC center 23: Terminal Server Client
Embodiment
Below we in conjunction with the accompanying drawings 1 and specific embodiment come a kind of high ferro slope and land slide situation real-time monitoring system based on BOTDR of the present utility model is described in further detail; use with concrete in the hope of understand its principle of work more clearly, but can not limit protection domain of the present utility model with this.
A kind of side slope real-time monitoring system based on BOTDR, described system includes fiber-optic monitoring network, Control Room 21, CSRC center 22 and Terminal Server Client 23, point of fixity 1-12 and the optical fiber 18 that is connected each point of fixity are arranged in the described fiber-optic monitoring network, in the described Control Room 21 by BOTDR main frame 19 and monitoring computer 20.Described fiber-optic monitoring network is connected with Control Room 21 by optical fiber, and Control Room 21 is communicated by letter with CSRC center 22 by LAN (Local Area Network), and CSRC center 22 is again by the Internet(the Internet) communicate by letter with Terminal Server Client 23.
In side slope real-time monitoring system of the present utility model, as a kind of optimizing design scheme, described fiber-optic monitoring network is laid in domatic 13, in order to realize to whole domatic comprehensive monitoring and reduce quantities that optical fiber 18 has adopted approximate snakelike mode at the wiring path on domatic.Secondly, according to former study as can be known, under the influence of rainfall, domatic 13 trailing edge can produce big displacement, and preceding end movement is less, therefore only at domatic 13 middle part, trailing edge space laying optical fiber 18, promptly apart from wide domatic of trailing edge top 17 8.0m, apart from the wide domatic then laying optical fiber 18 not of front bottom end 16 2.0m; At last, depth of drive for point of fixity 1-12 place fixed component also needs careful design, known to forefathers' research, by the side slope superficial that mostly occurs of the landslide due to the rainfall, and deep layer soil body generation deformation is very little even undeformed, therefore be arranged on domatic trailing edge top 17 and squeeze into soil body degree of depth 1.0m at least as the point of fixity 1,2,3 of monitoring basic point and the fixed component at 4 places, motionless to guarantee its relative fixed, and the fixed component at all the other point of fixity 5-12 places is squeezed into the soil body degree of depth and only need be reached 0.5m and get final product.Described point of fixity 1-12 adopts drill rod or other easily to knock in the fixed component of the soil body, and the optical fiber 18 that connects each point of fixity is on fixed component and with bonding agent that they are together bonding, so that every section optical fiber all is in tension.So laying optical fiber mainly is because optical fiber and soil body surface of contact are very little, friction force is less during this time, optical fiber and the inharmonic problem of soil deformation take place easily, be that the soil body is subjected to displacement and changes and optical fiber does not change along with the soil body, also therefore need on the optical fiber wiring path, a point of fixity be set every a segment distance, the soil body just can pass to optical fiber by fixed component when being subjected to displacement and changing, with the purpose of the compatibility of deformation that reaches the optical fiber soil body.One end of described fiber-optic monitoring network directly links to each other with BOTDR main frame in the Control Room.
BOTDR main frame 19 in the described Control Room 21 is based on a distributive fiber optic strain monitoring product of BOTDR know-why.Optical fiber 18 sends BOTDR main frame 19 with the form of light by optical fiber itself at the soil body deformation data of monitored some induction, and it draws the real-time strain curve of each monitoring point through computing, promptly corresponding with distance real-time strain curve.BOTDR main frame 19 can accurately be located side slope health status abnormity point and disconnected fine position, so that the maintainer can in time find abnormity point and carry out corresponding work of treatment.By analysis to the test data of subjects, can set up landslide early warning threshold value on their own by the user, when measured fibre strain variable quantity (being soil body type variable) has surpassed landslide early warning threshold value, BOTDR main frame 19 will send alerting signal.Monitoring computer 20 in the described Control Room 21, communicate by letter with BOTDR main frame 19 by LAN (Local Area Network), for the user provides the real-time soil body strain curve corresponding with distance and the graphic picture of the early warning of coming down, also provide alarm parameters and some other bound of parameter faces of being provided with simultaneously for the user.
Also can communicate by letter with BOTDR main frame 19 by LAN (Local Area Network) in described CSRC center 22, BOTDR main frame 19 sends to CSRC center 22 with Monitoring Data and landslide early warning signal again simultaneously.
Described CSRC center 22 is by the Internet(the Internet) Monitoring Data and landslide early warning signal can also be sent to Terminal Server Client 23, so that the upper management personnel can in time understand field condition and provide corresponding indication.
Its concrete implementation step is as follows:
The first step: dig groove dark about 20cm at domatic 13 soil bodys 14, along optical fiber 18 wiring paths excavation as shown in fig. 1;
Second step: the place is provided with point of fixity along the flute surfaces certain position, and wherein crosswise fixed point interval 3.0m(such as point of fixity 1 and 2 are spaced apart 3.0m), vertically point of fixity interval 4.0m(such as point of fixity 1 and 8 are spaced apart 4.0m); The fixed component of point of fixity adopts the thick drill rod of 40mm, squeeze into the soil body 14 inside vertically, the point of fixity 1,2,3 and 4 that wherein is positioned at the trailing edge top is as the monitoring basic point, motionless in order to guarantee its relative fixed, the drill rod depth of drive need reach 1.0m at least, and is 0.5m at all the other point of fixity drill rod depth of drive;
The 3rd step: optical fiber 18 is put into the groove that has dug,, optical fiber and drill rod are twined 5 ~ 10 circles in fixed point, and then with instant drying adhesive and pitch that they are bonding;
The 4th step: in loess backfill groove, optical fiber 18 is embedded in the domatic soil body 14;
The 5th step a: end of optical fiber 18 is connected to BOTDR main frame 19 in the Control Room 21;
The 6th step: start BOTDR main frame 19, monitoring computer 20, relevant monitoring of software parameter is set, do the debugging work of a little necessity, can monitor in real time and early warning test slope and land slide situation then.
The application that can be used in the system of high ferro soil-slope landslide situation monitoring in real time at monitoring in real time of high ferro slope and land slide situation and early warning of the present utility model, it has stronger operability, it is more complete that monitoring target covers, and can realize real-time, online, round-the-clock, permanently monitor and give warning in advance.It can reduce the manual inspection time greatly, reduces and checks cost, to guarantee the normal operation of high ferro, ensures national wealth and personnel's life security.
Claims (4)
1. side slope real-time monitoring system based on BOTDR, it is characterized in that: described system includes fiber-optic monitoring network, Control Room, CSRC center and Terminal Server Client; Described fiber-optic monitoring network settings are on side slope, and described fiber-optic monitoring network is connected with Control Room by optical fiber, and Control Room is communicated by letter with the CSRC center by LAN (Local Area Network), communicate by letter with Terminal Server Client by the Internet in the CSRC center again.
2. the side slope real-time monitoring system based on BOTDR according to claim 1, it is characterized in that: point of fixity and the optical fiber that is connected each point of fixity are arranged in the described fiber-optic monitoring network, optical fiber is at the approximate snakelike cabling mode of domatic employing, on wiring path, a point of fixity is set every a segment distance, described point of fixity adopts drill rod or other easily to knock in the fixed component of the soil body, and the optical fiber that connects each point of fixity sticks together them on fixed component and with bonding agent.
3. the side slope real-time monitoring system based on BOTDR according to claim 2, it is characterized in that: the point of fixity that is arranged on domatic trailing edge top is as the monitoring basic point, fixed component is squeezed into the soil body degree of depth herein and is reached 1.0m at least, in all the other fixed point, fixed component is squeezed into the degree of depth of the soil body at about 0.5m.
4. the side slope real-time monitoring system based on BOTDR according to claim 1, it is characterized in that: comprise BOTDR main frame and monitoring computer in the described Control Room, connect by network, described BOTDR main frame is used to receive the soil body deformation data of being sensed at monitored point by optical fiber, carries out data processing and reports to the police.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640959 CN203100690U (en) | 2012-11-28 | 2012-11-28 | Slope real-time monitoring system based on BOTDR (Brillouin Optical Time-domain Reflectometer) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220640959 CN203100690U (en) | 2012-11-28 | 2012-11-28 | Slope real-time monitoring system based on BOTDR (Brillouin Optical Time-domain Reflectometer) |
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| CN203100690U true CN203100690U (en) | 2013-07-31 |
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| CN 201220640959 Expired - Fee Related CN203100690U (en) | 2012-11-28 | 2012-11-28 | Slope real-time monitoring system based on BOTDR (Brillouin Optical Time-domain Reflectometer) |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864820A (en) * | 2015-06-10 | 2015-08-26 | 中南大学 | System and optical fiber laying method for slope deformation real-time monitoring |
| CN106323187A (en) * | 2015-07-03 | 2017-01-11 | 中铁西北科学研究院有限公司深圳南方分院 | Slope passive monitoring and early warning system |
| CN107014542A (en) * | 2017-04-21 | 2017-08-04 | 中国水利水电科学研究院 | A kind of intelligent safety monitoring slope system |
| CN108457263A (en) * | 2018-05-03 | 2018-08-28 | 山东理工大学 | A kind of road engineering deformation monitoring equipment based on optical fiber |
| CN109297457A (en) * | 2018-11-21 | 2019-02-01 | 武汉珈鹰智能科技有限公司 | A kind of Monitoring of Slope Deformation method for arranging |
| CN115341590A (en) * | 2022-08-10 | 2022-11-15 | 武汉理工大学 | Side slope monitoring system based on distributed optical fiber sensing technology |
| CN116168495A (en) * | 2023-02-28 | 2023-05-26 | 大连理工大学 | Online damage monitoring netting gear based on optical fiber monitoring |
-
2012
- 2012-11-28 CN CN 201220640959 patent/CN203100690U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864820A (en) * | 2015-06-10 | 2015-08-26 | 中南大学 | System and optical fiber laying method for slope deformation real-time monitoring |
| CN104864820B (en) * | 2015-06-10 | 2017-11-10 | 中南大学 | A kind of slope deforming real-time monitoring system and optical fiber laying method |
| CN106323187A (en) * | 2015-07-03 | 2017-01-11 | 中铁西北科学研究院有限公司深圳南方分院 | Slope passive monitoring and early warning system |
| CN107014542A (en) * | 2017-04-21 | 2017-08-04 | 中国水利水电科学研究院 | A kind of intelligent safety monitoring slope system |
| CN108457263A (en) * | 2018-05-03 | 2018-08-28 | 山东理工大学 | A kind of road engineering deformation monitoring equipment based on optical fiber |
| CN109297457A (en) * | 2018-11-21 | 2019-02-01 | 武汉珈鹰智能科技有限公司 | A kind of Monitoring of Slope Deformation method for arranging |
| CN115341590A (en) * | 2022-08-10 | 2022-11-15 | 武汉理工大学 | Side slope monitoring system based on distributed optical fiber sensing technology |
| CN116168495A (en) * | 2023-02-28 | 2023-05-26 | 大连理工大学 | Online damage monitoring netting gear based on optical fiber monitoring |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20161128 |