CN109374000A - High-precision real-time monitoring system for the positioning of remote submarine cable and deformation - Google Patents
High-precision real-time monitoring system for the positioning of remote submarine cable and deformation Download PDFInfo
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- CN109374000A CN109374000A CN201811360352.2A CN201811360352A CN109374000A CN 109374000 A CN109374000 A CN 109374000A CN 201811360352 A CN201811360352 A CN 201811360352A CN 109374000 A CN109374000 A CN 109374000A
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- submarine cable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention relates to ocean observation technology fields, and in particular to a kind of high-precision real-time monitoring system for the positioning of remote submarine cable and deformation.Including monitoring host computer；Monitoring host computer is set in bank base and is connected with photoelectric converter；Detection system includes flexible circuit board, and weldering sets several MEMS modular assemblies that bunchiness is concatenated by 485 bus connection wires on flexible circuit board, and MEMS modular assembly includes that TTL turns 485 bus modules and MEMS acceleration sensor module；485 connector of four-wire system is additionally provided between 485 bus connection wires and MEMS modular assembly；485 bus connection wires connect central controller, and central controller connects electrooptic modulator.The present invention can be realized the real-time monitoring of positioning and the deformation of submarine cable, realizes the long-range real-time positioning self-checking function of submarine cable, can be used for improving the stability and failover capabilities of submarine cable.
Description
Technical field
The present invention relates to ocean observation technology fields, and in particular to one kind is for the positioning of remote submarine cable and deformation
High-precision real-time monitoring system.
Background technique
" ocean intelligence tube cable key technology " is the forward position heat in current international ocean intellectual technology and equipment research and development field
Point, and restrict the technical bottleneck of the exploitation of China's marine resource and energy information transmission.It is rapid with China's new energy industry
Emergence and extremely swift and violent growth momentum, provide great market to submarine pipeline and cable product.Currently, Submarine Pipeline cable is main
Applied to two fields, one is marine electric energy transmission, the other is offshore drilling platforms.In recent years, domestic off-lying sea
The acquisition tremendous expansion of upper wind-power market has even more driven submarine pipeline and cable especially submarine cable product demand.
Submarine cable has become the bridge tie that remote energy source and new energy scale over strait utilizes and concern is burnt
Point.The standards system for establishing Submarine Pipeline cable, develop under the manufacturing technology of novel seabed cable, high sea conditions construction technology and
High precision monitor technology is that system solves following larger lengths, bigger depth, the core of higher precision marine engineering operation problem
And key, it can be obviously improved the intelligent level of the energy and information transmission network in marine economy development process, enhancing is resisted certainly
The ability and safe operation reliability of right disaster.Therefore, Development of Marine intelligence tube cable key technology, for supporting and ensureing energy
Source safety and Sustainable Socioeconomic Development have very great strategic importance.
While the application of Submarine Pipeline cable is grown rapidly, the safety problem of Submarine Pipeline cable is also always that people are closed
Note.Different from land tube cable, Submarine Pipeline cable operation risk is bigger, and failure probability is higher, this mainly with its working environment item
Part is badly closely related.The effects of tube cable in seabed not only may be by wave, ocean current, tide, corrosion is operated in, but also may face
Face ship anchor, platform or ship and fall the shocks such as object, fishing net and pull danger, it is easy to failure accidents occur.
Notification number is a kind of submarine cable vibration monitor system of Chinese patent literature of CN107328465A, includes vibration
Detect fore device, submarine cable vibration monitoring processing center and user terminal, vibration detection fore device and extraction seabed
One or more slack in cable composite fiber is connected as vibration monitoring distributed sensor, vibration detection front end
Device and submarine cable vibration detection processing center and user terminal distinguish communication connection.The present invention directly utilizes seabed composite cable
In slack as sensor fibre, so that it is acted as the effect of vibration monitoring distributed sensor, but serve as monitoring letter
Transmission medium is ceased, without being laid with dedicated sensing and signal transmission fiber, monitoring technology is easy to implement, with low investment quick.But
It is on the one hand the invention needs submarine cable to include the slack needed for it, the submarine cable for being fully loaded with is simultaneously uncomfortable
With carrying that add above-mentioned function obviously also unpractical for having designed the submarine cable that has encapsulated；Another aspect optical fiber prison
The precision of survey is limited, is difficult to be accurately positioned and reflect the form of submarine cable, is not easy to meet the monitoring of submarine cable key position
High-precision requirement.
Notification number discloses a kind of based on the underwater of MEMS attitude transducer for the Chinese patent literature of CN107339969A
Deformation of surface figure monitors system, main including main control computer, underwater data storage unit and multiple strip sensor arrays arranged side by side
Control computer is connected by underwater data storage unit with each sensor array；The outside of sensor array is close by encapsulating material
Envelope, inside include the more piece rectangular tube connected by flexible joint；A MEMS attitude transducer is arranged in every section rectangular tube, respectively
MEMS attitude transducer is connected by cable connection acquisition unit, the latter with underwater Master Control Unit；MEMS attitude transducer is 9 axis
Attitude transducer, including three axis accelerometer, three-axis gyroscope and triaxial magnetometer, can by the acceleration of acquisition, angular speed with
Magnetic field strength carries out data fusion to obtain posture information, and is displayed as the data mode of Eulerian angles or quaternary number.But it should
The monitoring that invention is deformed mainly for underwater topography is not particularly suited for the case where monitoring submarine cable, and sensor array is adopted
With stainless steel rectangular pipe plus rubber flexible joint structure, poor reliability, joint is easy to damage, there is the probability being distorted,
MEMS attitude transducer uses 9 axis attitude transducers, and energy consumption is relatively high, is not suitable for laying for a long time under water.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of remote sea
The high-precision real-time monitoring system of the positioning of bottom cable and deformation.
In order to solve the technical problem, solution of the invention is as follows:
A kind of high-precision real-time monitoring system for the positioning of remote submarine cable and deformation is provided, including in monitoring
Position machine；It further include detection system；
Monitoring host computer is set in bank base and is connected with photoelectric converter；
Detection system includes flexible circuit board, and weldering sets several by 485 bus connection wires concatenation bunchiness on flexible circuit board
MEMS modular assembly, MEMS modular assembly includes that TTL turns 485 bus modules and MEMS acceleration sensor module；485 buses
485 connector of four-wire system is additionally provided between connecting line and MEMS modular assembly；485 bus connection wires connect central controller, center
Controller connects electrooptic modulator, and electrooptic modulator is using certain electro-optic crystals, such as lithium columbate crystal (LiNb03), GaAs
Modulator made of the electrooptic effect of crystal (GaAs) and lithium tantalate (LiTa03).Electrooptic effect, which is worked as, applies voltages to electricity
When on luminescent crystal, the refractive index of electro-optic crystal will change, and as a result cause the variation of the light wave characteristic by the crystal, realize
Modulation to the phase of optical signal, amplitude, intensity and polarization state.
Central controller is connected with central controller and electrooptic modulator battery module with electrooptic modulator；MEMS accelerates
Degree sensor module is connected with probe power module.
Detection system fits in the outside at submarine cable position to be detected, and central controller is connected by data transmission fiber
Photoelectric converter；Data transmission fiber is also bonded with submarine cable, and passes through wire armoring for submarine cable, data transmission fiber
It is encapsulated jointly with detection system.
As an improvement central controller includes embedded controller and independent current source, embedded controller is responsible for institute
There are the data of MEMS acceleration sensor module to acquire.
As an improvement MEMS acceleration sensor module is 3 axle acceleration sensors, can by the acceleration of acquisition into
Row data fusion is displayed as the data mode of quaternary number or Eulerian angles to obtain posture information.
As an improvement photoelectric converter is photodiode.
As an improvement MEMS acceleration sensor module spacing adjacent on flexible circuit board is 5m.
As an improvement probe power module is the patch battery of 5V；Central controller and electrooptic modulator battery
Module is the patch battery pack of 24V.
As an improvement flexible circuit board uses multi-layer flexible sheet, and use two panel construction；Dielectric material is poly- for glue
Acid imide, conductor material are copper foil, and glue material is oxyphenisatin acetal.
As an improvement flexible circuit board ends are equipped with flexible circuit board fixing end, set in flexible circuit board fixing end
There is buckle, for realizing the connection between submarine cable.
In the present invention, entire monitoring system is laid in Exterior cable after processing is completed in submarine cable, to having processed
At cable internal structure design do not have an impact, it is logical that whole process will not damage submarine cable itself and cable data
The functions such as news.
Inventive principle description:
In technical solution of the present invention, the data of MEMS acceleration sensor module to central controller are transmitted through 485
Bus realizes that the carrier of sensor node is flexible circuit board, on the one hand ensure that the reliability of data transmission, on the other hand makes
Sensor is bonded submarine cable, guarantees undistorted in the Morphological Reconstruction of submarine cable.100 meters emphasis monitoring positions every
5 meters of arrangements, one MEMS acceleration sensor module, placing 20 MEMS acceleration sensor modules in total ensures centainly missing
The form of submarine cable is positioned and reflected in poor range.Central controller receives the storage of MEMS acceleration sensor module data
And degree will be accelerated by a whole set of data transmission system of electrooptic modulator, data transmission fiber and photoelectric converter after being packaged
According to the monitoring host computer for being transferred to bank base.Using optical fiber as transmission medium submarine cable it is longer, apart from the farther away feelings of bank base
Transmission time can be reduced under condition, it is ensured that the real-time of monitoring.Being located through for submarine cable calculates each MEMS acceleration biography
The position of sensor module is realized, obtains seabed electricity by each MEMS acceleration sensor module alternate position spike value on this basis
The form of cable.
During submarine cable processing, it is first determined the total length of submarine cable transmission line of electricity, then determine emphasis prison
The position of survey.Then determine arrive bank base monitoring platform distance, customize data transmission fiber, the electrooptic modulator of equal length with
And photoelectric converter is a set of, while making 100 meters of flexible circuit board, and MEMS acceleration sensor module and center are controlled
Device is welded on above.Submarine cable after processing is completed, MEMS acceleration sensor module and flexible circuit board are arranged in pass
Key monitoring position simultaneously guarantees perfect fitting, while fixed data transmission fiber and mating electrooptic modulator, photoelectric converter, and makes
Make the connection circuit of electrooptic modulator and central controller.After the completion of entire external process, one is enclosed in flexible circuit
The rubber membrane of layer insulation, then ensures the waterproof of entire circuit and TCP data segment using wire armoring package outside.Whole
A cable monitors system when seabed is laid and is put into togerther seabed with cable, reduces the unnecessary trouble of subsea construction.
If continuing working, battery after a period of time exhausts or event occurs in the MEMS acceleration sensor module of some data acquisition node
Barrier need to only be repaired for battery module or particular sensor module.
The definition of multi-layer flexible sheet, which refers to, contains the route of multilayer copper foil composition in flexible board, use silk not comprising silver paste etc.
The conductive number of plies that India side formula is formed.It requirement according to MEMS acceleration sensor module array to flexibility and reliably examines
Consider, the flexible circuit board in this system uses two panel construction.In flex design, the type and structure of material are very heavy
It wants, it mainly decides flexibility, electrical characteristic and other machinery characteristic of flexible board etc..As further preferred, medium material
Material selects polyimides (having glue), and conductor material selection is the most frequently used, is easiest to the copper foil of processing, and glue material selects heat curable properties
It is good, the strong oxyphenisatin acetal of flexible characteristic.
MEMS acceleration sensor module acquisition node is used to acquire the acceleration information of each physical points of submarine cable, is used for
The submarine cable Morphological Reconstruction in later period；As example is applied, the special intelligence of dimension is can be used in MEMS acceleration sensor module acquisition node
It can SCA3300 3-axis acceleration sensor, included temperature-compensating and Kalman filtering；Central controller controls plate is each for summarizing
The data of a acceleration sensor module data acquisition node complete the storage and pretreatment of data, as using example, center
The CX5100 of BECKHOFF can be used in controller control panel；Photoelectric converter is used to the data of control centre being converted to optical signal
It is transmitted for data, and is that MEMS sensor module data is used for submarine cable form by optical signal demodulation in bank base receiving end
It is a pair of that LHGD photoelectric converter GS-03-AB can be used as example is applied in reconstruct；Data transmission fiber is used for transmission electric signal
JINKUNYU single mode single-core fiber wire jumper FC-FC can be used as example is applied by seabed to bank base monitor supervision platform；Power supply mould
Block is to provide electric energy, respectively 24V and 5V for central controller and slave station data acquisition unit, and 24V is connected by lithium battery
Or be formed in parallel, as example is applied, fleet-footed 5V lithium battery can be used.Electrooptic modulator is public using U.S. ConOptics
Take charge of low pressure electrooptic modulator.
Compared with prior art, the invention has the benefit that
(1) the high-precision real-time monitoring system for the positioning of remote submarine cable and deformation of the invention, can be realized
The real-time monitoring of positioning and the deformation of submarine cable realizes the long-range real-time positioning self-checking function of submarine cable, can be used for improving
The stability and failover capabilities of submarine cable.
(2) present invention innovatively proposes the mode of electrooptic modulator, photoelectric converter and data transmission fiber collocation
Realize the long distance transmission of data, not only speed is fast for fiber optic communication, but also can guarantee the stability of long-range data transmission, can
To effectively achieve the requirement of submarine cable real time monitoring, and key position is monitored using MEMS acceleration sensor module,
For more traditional FBG monitoring, and greatly improve monitoring accuracy.
(3) in the present invention, MEMS acceleration sensor module node is connected by flexible circuit board as carrier, data
Communication is realized by 485 buses, not only simplifies circuit structure, while ensure that MEMS acceleration sensor module and seabed electricity
The perfect fitting of cable.Whole system is wrapped up by wire armoring shell, plays the function of waterproof.Furthermore MEMS acceleration transducer
Module, controller, each photoelectric conversion module and battery small volume, realize positioning, can be effective on the basis of monitoring function
Cost is saved on ground.
Detailed description of the invention
Fig. 1 is that entirety of the invention lays structural schematic diagram；
Fig. 2 is the submarine cable sectional view that the present invention applies；
Fig. 3 is flexible circuit board structure schematic diagram of the invention.
Appended drawing reference in figure: 1- bank base；2- monitors host computer；3- photoelectric converter；4- winch；6- submarine cable waits supervising
Survey position；7- data transmission fiber；8- submarine cable；9- wire armoring shell；10- flexible circuit board fixing end；11- flexible electrical
Road plate；12-TTL turns 485 bus modules；13-MEMS acceleration sensor module；485 connector of 14- four-wire system；15-485 is total
Line connecting line；16- central controller；17- probe power module；18- electrooptic modulator；19- central controller and electric light tune
Device battery module processed.
Specific embodiment
Invention is further described in detail with specific implementation with reference to the accompanying drawing.
As shown in Figure 1-3, a kind of high-precision real-time monitoring system for the positioning of remote submarine cable and deformation, packet
Include monitoring host computer 2.It further include monitoring system.Monitoring host computer 2 is set in bank base 1 and is connected with photoelectric converter 3.Photoelectricity turns
Parallel operation 3 is photodiode.
Monitoring system includes flexible circuit board 11, and flexible circuit board 11 uses multi-layer flexible sheet, and uses two panel construction.
Dielectric material is glue polyimides, and conductor material is copper foil, and glue material is oxyphenisatin acetal.11 both ends of flexible circuit board are equipped with flexibility
11 fixing end 10 of circuit board, 11 fixing end 10 of flexible circuit board is equipped with buckle, for realizing the connection between submarine cable 8.
Weldering sets 20 spacing as the MEMS module for concatenating bunchiness by 485 bus connection wires 15 of 5m on flexible circuit board 11
Component, MEMS modular assembly include that TTL turns 485 bus modules 12 and MEMS acceleration sensor module 13.MEMS acceleration passes
Sensor module is 3 axle acceleration sensors, the acceleration of acquisition can be carried out to data fusion to obtain posture information, and shown
It is shown as the data mode of quaternary number or Eulerian angles.Four-wire system 485 is additionally provided between 485 bus connection wires 15 and MEMS modular assembly
Connector 14.485 bus connection wires 15 connect central controller 16, and central controller 16 connects electrooptic modulator 18, center control
Device 16 processed includes embedded controller and independent current source, and embedded controller is responsible for the number of all MEMS acceleration sensor modules
According to acquisition.
Electrooptic modulator 18 is using certain electro-optic crystals, such as lithium columbate crystal (LiNb03), gallium arsenide (GaAs)
Modulator made of electrooptic effect with lithium tantalate (LiTa03).Electrooptic effect, which is worked as, to be applied voltages on electro-optic crystal
When, the refractive index of electro-optic crystal will change, and as a result cause the variation of the light wave characteristic by the crystal, realize to optical signal
Phase, amplitude, intensity and polarization state modulation.
Central controller 16 and electrooptic modulator 18 with the central controller and electric light that are made of the patch battery pack of 24V
Modulator battery module 19 is connected.17 phase of patch battery sensor power module of MEMS acceleration sensor module 13 and 5V
Even.
Monitoring system fits in the outside at submarine cable position 6 to be monitored, and submarine cable passes through the winch that bank base 1 is equipped with
4 are laid, and central controller 16 connects photoelectric converter 3 by data transmission fiber 7.Data transmission fiber 7 also with seabed
Cable 8 is bonded, and is encapsulated submarine cable 8, data transmission fiber 7 and monitoring system jointly by wire armoring.
In the present invention, entire monitoring system is laid in Exterior cable after processing is completed in submarine cable 8, to having processed
At cable internal structure design do not have an impact, whole process will not damage 8 data of submarine cable 8 itself and submarine cable
The functions such as communication.
As shown in Fig. 2, data transmission fiber 7 and submarine cable 8 form compound umbilical, no matter in processing or
When laying and cable and when monitoring system worked well, the phenomenon that two lines road is all independent from each other, is not in interference.
The outside of compound umbilical is wrapped up by wire armoring shell 9, on the one hand has water-proof function, certain guarantor is played to monitoring system
Shield effect.On the other hand it avoids that cost can be effectively reduced using expensive copper wire armored shell.
The course of work of the invention is as follows:
Entire monitoring system is directly attached to submarine cable 5 and lays with cable, the main cable for monitoring key position 6
Form.The monitoring system being attached on cable can acquire the acceleration information of each physical points, and then passing through 485 buses 15 will
Data are transmitted directly to central controller 16, central controller 16 data are classified and are packaged after by electrooptic modulator 18
Optical signal is converted the data into, 3-axis acceleration data are transferred to by monitoring host computer 2 by data transmission fiber 8, then pass through
Photoelectric converter 3 will position by the algorithm of host computer 2 and reconstruct the shape of key monitoring point after data convert, pass through light
The fast characteristic of fine transmission speed guarantees real-time.Entire submarine cable monitoring system has the working characteristics of normally closed type, when there is ship
Only when key position passes through or casts anchor, host computer, which sends instruction, allows monitoring system to start, and sensor starts to acquire acceleration
Data, position and reconstruct the form of cable, and whether monitoring cable damages.When sea situation is stablized, host computer, which sends signal, to be made
Sensor is closed.The working characteristics of normally closed type can be such that the energy consumption of whole system is preferably minimized, furthermore can be by periodically starting
Monitoring system finds the breakage or existing security risk of cable in time.
It needs to illustrate, the above is only preferable implementation examples of the invention, are not intended to restrict the invention, all in spirit of that invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of high-precision real-time monitoring system for the positioning of remote submarine cable and deformation, including monitoring host computer；
It is characterized in that, further including monitoring system；
The monitoring host computer is set in bank base and is connected with photoelectric converter；
The monitoring system includes flexible circuit board, and weldering sets several by 485 bus connection wires concatenation bunchiness on flexible circuit board
MEMS modular assembly, MEMS modular assembly includes that TTL turns 485 bus modules and MEMS acceleration sensor module；485 buses
485 connector of four-wire system is additionally provided between connecting line and MEMS modular assembly；485 bus connection wires connect central controller, center
Controller connects electrooptic modulator, central controller and electrooptic modulator with central controller and electrooptic modulator battery module
It is connected；MEMS acceleration sensor module is connected with probe power module；
The monitoring system fits in the outside at submarine cable position to be monitored, and the central controller passes through data transmission fiber
Connect the photoelectric converter；The data transmission fiber is also bonded with submarine cable, and by wire armoring by submarine cable,
Data transmission fiber encapsulates jointly with monitoring system.
2. system according to claim 1, which is characterized in that the MEMS acceleration sensor module is 3 axle accelerations
Sensor.
3. system according to claim 1, which is characterized in that the photoelectric converter is photodiode.
4. system according to claim 1, which is characterized in that adjacent MEMS acceleration sensing on the flexible circuit board
Device intermodule is away from for 5m.
5. system according to claim 1, which is characterized in that the probe power module is the patch battery of 5V；Institute
Central controller and electrooptic modulator battery module are stated as the patch battery pack of 24V.
6. system according to claim 1, which is characterized in that the flexible circuit board uses multi-layer flexible sheet, and uses
Two panel construction；Dielectric material is glue polyimides, and conductor material is copper foil, and glue material is oxyphenisatin acetal.
7. system according to claim 1, which is characterized in that the flexible circuit board ends are fixed equipped with flexible circuit board
End, flexible circuit board fixing end is equipped with buckle, for realizing the connection between submarine cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811340392 | 2018-11-12 | ||
| CN2018113403920 | 2018-11-12 |
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| CN109374000A true CN109374000A (en) | 2019-02-22 |
| CN109374000B CN109374000B (en) | 2021-05-14 |
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| CN110045241A (en) * | 2019-04-18 | 2019-07-23 | 中国电力科学研究院有限公司 | A kind of method and system for the capacitive coupling partial discharge detection to high-voltage crosslinking sea cable factory connector |
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| CN112461233A (en) * | 2020-10-29 | 2021-03-09 | 国网浙江省电力有限公司舟山供电公司 | Submarine cable fault monitoring system based on MEMS sensing array |
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| CN114216500A (en) * | 2021-11-29 | 2022-03-22 | 浙江大学 | Submarine cable high-precision intelligent health monitoring system |
| CN115900637A (en) * | 2022-10-26 | 2023-04-04 | 中国舰船研究设计中心 | Attitude measurement method of offshore nuclear power platform |
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