CN205176269U - Sea cable anchor decreases monitoring devices based on radar and distributing type vibration optical fiber sensing technique - Google Patents
Sea cable anchor decreases monitoring devices based on radar and distributing type vibration optical fiber sensing technique Download PDFInfo
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- CN205176269U CN205176269U CN201520816655.6U CN201520816655U CN205176269U CN 205176269 U CN205176269 U CN 205176269U CN 201520816655 U CN201520816655 U CN 201520816655U CN 205176269 U CN205176269 U CN 205176269U
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Abstract
The utility model provides a sea cable anchor decreases monitoring devices based on radar and distributing type vibration optical fiber sensing technique, this sea cable anchor decreases monitoring devices and includes sea radar monitoring subsystem and seabed optic fibre vibration monitoring subsystem, decrease monitoring devices through radar technology and the extra large cable anchor that the optical fiber sensing technique combines, utilize sea radar and submarine cable optic fibre to form three -dimensional control, the initiative early warning to the ship has been realized, the monitoring, effectively avoided having a mind to or by accident under the state, the destruction that the ship breaks down and causes extra large cable, and carry out the track record to complete incident, realize collecting evidence afterwards. The technical scheme of the utility model can effectively improve the accuracy of monitoring, three -dimensional, all -round realization is to effective protection of extra large cable.
Description
Technical field
The utility model relates to a kind of supervisory system, and specifically a kind of extra large cable anchor based on radar and distributed vibration optical fiber sensing technology damages monitoring device.
Background technology
Offshore wind farm belongs to new industry in China, and the subsea cable anchor being applied to market at present damages solution to be had: prohibiting anchor buoy will, monitoring remote video, realizing monitoring by monitoring the change of extra large cable tension force, based on AIS information.This several scheme has following defect respectively:
1. prohibit anchor buoy will:
Prohibiting anchor buoy will is by arranging certain mark on extra large cable both sides, identifies a scope prohibited anchoring; Or publicity mark is set in fisherman region, cultivate the consciousness that fisherman is not cast anchor near extra large cable.Shortcoming: this method is sheerly conscious by fisherman, does not have supervision, also cannot know whether the other side casts anchor at anchorage after fishing boat sails.
2. monitoring remote video:
By arranging camera to monitor in extra large cable region, the region nearer in offshore has certain effect.Shortcoming: need special messenger to carry out the moment and stare at monitoring, and cannot video-transmission problems be solved at extra large cable place far away.
3. damage by monitoring anchor to the tension variation of extra large cable:
Tension force is a component of radial pressure; Friction force=friction factor x radial pressure is due to the cutting edge effect of anchor, and form the power bending and scratch destruction less, optical fiber has tediously long (~ 0.3%), and single cable has good strain insulator rigidity, and tension force is not leading destructive power, and when destroying generation, tension force is limited.Shortcoming: this kind of method, without pre-alerting ability, when detecting useful signal, enters failure stage.Especially by the tension variation of extra large cable being monitored to the discovery time point schematic diagram of anchor damage as shown in Figure 1.
4. realize monitoring based on AIS information:
Sea cable monitoring terminal places the VHF signal of AIS equipment automatic reception from monitor area shippping traffic, and this signal is processed, obtain the GPS location of corresponding boats and ships, operational configuration, the speed of a ship or plane, bow to etc. navigator fix information, GPS information can judge whether boats and ships are in extra large cable monitor area.If belong to, these boats and ships have entered anchorage-prohibited area territory, need tracing detection, otherwise, abandon this target boats and ships; The speed of a ship or plane and operational configuration are used for judging whether boats and ships have the trend of casting anchor, determination methods is: the speed of a ship or plane of test and monitoring boats and ships, if this ship is in high speed operation state, the trend of then casting anchor is zero, otherwise the lower possibility of casting anchor of speed is higher, when speed is less than monitoring threshold values speed, be then judged to be the trend of casting anchor; Bow is to judging that boats and ships pass through the mode of monitor area.By constantly receiving the AIS information of shippping traffic in monitor area, and information being processed in real time, realizing the anti-anchor of intelligent extra large cable and damaging protection.Shortcoming: be the AIS information that passive type accepts the other side, can not active monitoring.
Utility model content
The utility model proposes a kind of extra large cable anchor based on radar and distributed vibration optical fiber sensing technology and damage monitoring device, this device utilizes sea radar and subsea cable optical fiber to form three-dimensional monitoring.
The technical scheme adopted is as follows:
Extra large cable anchor based on radar and distributed vibration optical fiber sensing technology damages a monitoring device, and this extra large cable anchor damages monitoring device and comprises sea radar monitoring subsystem and seabed fiber monitoring subsystem, wherein,
Described sea radar monitoring subsystem comprises monitoring device, treating apparatus, prior-warning device, memory storage, described monitoring device carries out tracking to ship target and obtains trace data on electronic chart, according to trace data, described treating apparatus judges whether ship drives towards anchorage-prohibited area, described prior-warning device carries out early warning to ship and points out to specifying the boats and ships stopped in marine site to send warm propelling movement, and described memory storage carries out record to described trace data and stores.Described seabed fiber monitoring subsystem comprises one or many with continuous print detection optical fiber, detection main frame, described detection main frame comprises light source, coupling and filtering light path, photoelectric commutator and data acquisition, signal transacting and control circuit, described light source injects light pulse to described detection optical fiber, backscatter signals is received by described coupling and filtering light path and photoelectric commutator, and detected the distributed vibration signal on described detection optical fiber by described data acquisition, signal transacting and control circuit, and obtain the floor data of ship according to described distributed vibration signal.
Wherein, described trace data comprises ship course, the ship speed of a ship or plane and ship driving path data.
Wherein, described sea radar monitoring subsystem comprises AIS ship automatic identification system further.
Wherein, described light source is coherent source, and described loose chrominance signal dorsad gets Rayleigh scattering signal.
Wherein, described floor data comprise the casting anchor of ship, the operating mode such as to weigh anchor.
Accompanying drawing explanation
Fig. 1 is the discovery time point schematic diagram damaged by monitoring anchor to the tension variation of extra large cable;
Fig. 2 is seabed fiber monitoring subsystem operating diagram;
Fig. 3 is sea radar monitoring subsystem work schematic diagram;
Fig. 4 damages by extra large cable anchor of the present utility model the discovery time point schematic diagram that anchor damage monitored by monitoring device;
Fig. 5 is that extra large cable anchor of the present utility model damages monitoring device specific works flow process figure.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specifically implementing and coordinate accompanying drawing, the utility model is further described.
Radar on sea is initiatively monitored the target on sea, even if ship closes AIS, also on electronic chart, can carry out tracking display to this target.If ship drives towards prohibit anchor marine site, tracking and monitoring will be carried out to this ship, early warning is carried out to the behavior of casting anchor of ship and points out to specifying the boats and ships stopped in marine site to send warm propelling movement, also got in touch with threatening ship by VHF, general special frequency channel broadcast & call in region, and track record is carried out to complete event, realize post-mordem forensics.
The echo that radar emission electromagnetic wave is formed after target reflection comprises following information:
Existence → the target of echoed signal exists
Time delay → the target range of echoed signal
The wave-front method of echoed signal is to → target azimuth
The radial velocity of the Doppler frequency-shift → target of echoed signal
The identification of the characteristic information → target of echoed signal
Object tracking and recognition:
Mainly complete by specific application software, its adopts sliding window shape formula to condense input point mark echo.First amplitude linearity weighting is carried out to same multi-beam beam neighbor distance cell data, and then amplitude linearity weighting is carried out to adjacent beams same distance unit object, obtain target centroid position and amplitude information etc. after condensing;
Finally carry out a mark to the independent target through slide window processing to extract, thus obtain these radar scanning target echo data final.
Seabed fiber monitoring subsystem is based on coherent rayleigh scattering, using it as distributed fiberoptic sensor.Front end is one or more and follows continuous print detection optical fiber, and detection main frame is made up of main control modules etc. such as light source, coupling and filtering light paths.Light source injects light pulse to optical fiber, by coupling and filtering light path and photoelectric commutator reception backscatter signals, and is gone out the distribution vibration signal on detection optical fiber by electric circuit inspection such as data acquisition, signal transacting and controls.The light source of equipment is coherent source, and loose chrominance signal gets Rayleigh scattering signal dorsad.Because main light source has good coherence, on optical fiber, the Rayleigh scattering of any point also has coherence, and it is only relevant with local fiber local change in optical path length, therefore receiving end passes through intensity and the phase differential of pointwise or probe unit analysis coherent rayleigh scattering one by one, and then obtain the change in optical path length of corresponding optical fiber, and change in optical path length and vibratory output have the linear corresponding relation of journey, seabed fiber monitoring subsystem operating diagram as shown in Figure 2.
Early warning:
Warning: find and location, radar scanning sea cable route superjacent waters, generates radar video, in conjunction with AIS ship automatic identification system information, and the high-risk ship entered in warning region continued to monitor;
Target: judge accommodation, ship's speed, change course the Ship dynamic situation such as rate and course, object filtering and threat target keep continuing to follow the tracks of;
Operating mode judges: the operating modes such as distributed vibration sensor, by hydrolocation and frequency spectrum identification, is distinguished more reliably and judged boats and ships and behavior thereof, following, to weigh anchor judge;
Damage by extra large cable anchor of the present utility model the discovery time point schematic diagram that anchor damage monitored by monitoring device, as shown in Figure 4, its tool has the following advantages:
1. by discovery point time advance to early stage;
2. emergency processing time window 20 minutes ~ 80 minutes;
3. find namely to process.
Extra large cable anchor of the present utility model damages monitoring device specific works flow process figure as shown in Figure 5.When ship enters monitoring section, sea radar monitoring subsystem judges the ship course entered in monitoring range, the speed of a ship or plane, driving path, if ship does not drive towards anchorage-prohibited area, monitoring is continued until ship sails out of to it, if ship drives towards anchorage-prohibited area, list emphasis monitoring in, ship sails anchorage-prohibited area into, continue monitoring, ship course is judged further by radar, track etc., analyze ship and whether have movement of casting anchor, if ship is without movement of casting anchor, monitoring is continued until ship sails out of to it, if ship likely has movement of casting anchor, such as, ship's speed reduces, spin in original place, seabed fiber monitoring subsystem is utilized to obtain the floor data of ship, judge whether to cast anchor, weigh anchor, VHF or other means of communications is utilized to give a warning or pushed information to ship afterwards, if ship receives warning, expression is left, monitoring is continued until ship sails out of to it, if ship is ignored, continue to cast anchor, then record is carried out to whole event, evidence obtaining.
The utility model provides a kind of extra large cable anchor based on radar and distributed vibration optical fiber sensing technology and damages monitoring device, this extra large cable anchor damages monitoring device and comprises sea radar monitoring subsystem and seabed fiber monitoring subsystem, the extra large cable anchor be combined with optical fiber sensing technology by Radar Technology damages monitoring device, sea radar and subsea cable optical fiber is utilized to form three-dimensional monitoring, achieve the active forewarning to ship, monitoring, effectively prevent and have a mind to or be not intended under state, ship casts anchor the destruction of causing extra large cable, and track record is carried out to complete event, realize post-mordem forensics.The technical solution of the utility model effectively can improve the accuracy of monitoring, three-dimensional, and comprehensive realization is to the available protecting of extra large cable.
The above is only preferred implementation of the present utility model; should be understood that; for the member of ordinary skill of the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (5)
1. the extra large cable anchor based on radar and distributed vibration optical fiber sensing technology damages a monitoring device, it is characterized in that, this extra large cable anchor damages monitoring device and comprises sea radar monitoring subsystem and seabed fiber monitoring subsystem, wherein,
Described sea radar monitoring subsystem comprises monitoring device, treating apparatus, prior-warning device, memory storage, described monitoring device carries out tracking to ship target and obtains trace data on electronic chart, according to trace data, described treating apparatus judges whether ship drives towards anchorage-prohibited area, and described prior-warning device carries out early warning to ship and pushes prompting to specifying the boats and ships stopped in marine site to send warmth, described memory storage carries out record to described trace data and stores
Described seabed fiber monitoring subsystem comprises one or more continuous print detection optical fiber, detection main frame, described detection main frame comprises light source, coupling and filtering light path, photoelectric commutator and data acquisition, signal transacting and control circuit, described light source injects light pulse to described detection optical fiber, backscatter signals is received by described coupling and filtering light path and photoelectric commutator, and detected the distributed vibration signal on described detection optical fiber by described data acquisition, signal transacting and control circuit, and obtain the floor data of ship according to described distributed vibration signal.
2. a kind of extra large cable anchor based on radar and distributed vibration optical fiber sensing technology according to claim 1 damages monitoring device, and wherein, described trace data comprises ship course, the ship speed of a ship or plane and ship driving path data.
3. a kind of extra large cable anchor based on radar and distributed vibration optical fiber sensing technology according to claim 1 damages monitoring device, and wherein, described sea radar monitoring subsystem comprises AIS ship automatic identification system further.
4. a kind of extra large cable anchor based on radar and distributed vibration optical fiber sensing technology according to claim 1 damages monitoring device, and wherein, described light source is coherent source, and described loose chrominance signal dorsad gets Rayleigh scattering signal.
5. a kind of extra large cable anchor based on radar and distributed vibration optical fiber sensing technology according to claim 1 damages monitoring device, and wherein, described floor data comprises the casting anchor of ship, operating mode of weighing anchor.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425857A (en) * | 2017-08-31 | 2019-03-05 | 中电科海洋信息技术研究院有限公司 | Seabed safeguarding of assets method, apparatus, equipment and computer readable storage medium |
| CN110069582A (en) * | 2017-10-12 | 2019-07-30 | 中电科海洋信息技术研究院有限公司 | Anchorage regardless area determination method, device, equipment and storage medium |
| CN110376590A (en) * | 2019-06-24 | 2019-10-25 | 广西电网有限责任公司电力科学研究院 | A kind of submarine cable anchor damage monitoring system and its monitoring method based on sonar contact |
| CN110907028A (en) * | 2019-12-12 | 2020-03-24 | 深圳供电局有限公司 | Cable vibration signal type detection method and system |
| CN112799050A (en) * | 2020-12-25 | 2021-05-14 | 济南和普威视光电技术有限公司 | Low-altitude slow small target monitoring method and system based on photoelectric tracking |
| CN114692700A (en) * | 2022-05-30 | 2022-07-01 | 中天电力光缆有限公司 | Ocean environment sensing detection method, device and system based on submarine cable |
-
2015
- 2015-10-20 CN CN201520816655.6U patent/CN205176269U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425857A (en) * | 2017-08-31 | 2019-03-05 | 中电科海洋信息技术研究院有限公司 | Seabed safeguarding of assets method, apparatus, equipment and computer readable storage medium |
| CN110069582A (en) * | 2017-10-12 | 2019-07-30 | 中电科海洋信息技术研究院有限公司 | Anchorage regardless area determination method, device, equipment and storage medium |
| CN110376590A (en) * | 2019-06-24 | 2019-10-25 | 广西电网有限责任公司电力科学研究院 | A kind of submarine cable anchor damage monitoring system and its monitoring method based on sonar contact |
| CN110907028A (en) * | 2019-12-12 | 2020-03-24 | 深圳供电局有限公司 | Cable vibration signal type detection method and system |
| CN112799050A (en) * | 2020-12-25 | 2021-05-14 | 济南和普威视光电技术有限公司 | Low-altitude slow small target monitoring method and system based on photoelectric tracking |
| CN114692700A (en) * | 2022-05-30 | 2022-07-01 | 中天电力光缆有限公司 | Ocean environment sensing detection method, device and system based on submarine cable |
| CN114692700B (en) * | 2022-05-30 | 2022-08-19 | 中天电力光缆有限公司 | Ocean environment sensing detection method, device and system based on submarine cable |
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