CN102385051A - Device and method for monitoring mooring system based on short base line hydro-acoustic positioning - Google Patents
Device and method for monitoring mooring system based on short base line hydro-acoustic positioning Download PDFInfo
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- CN102385051A CN102385051A CN2011103497544A CN201110349754A CN102385051A CN 102385051 A CN102385051 A CN 102385051A CN 2011103497544 A CN2011103497544 A CN 2011103497544A CN 201110349754 A CN201110349754 A CN 201110349754A CN 102385051 A CN102385051 A CN 102385051A
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- anchor chain
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a device and a method for monitoring a mooring system based on short base line hydro-acoustic positioning. The device is characterized by comprising a plurality of interrogators, a plurality of seabed transponders and a plurality of anchor chain transponders; the interrogators are arranged at the bottom of a floating platform at intervals and connected with cables, and the other ends of the cables are connected with a platform measuring host; the seabed transponders are arranged at the seabed and used for receiving and feeding back hydro-acoustic signals emitted by the interrogators; and the plurality of anchor chain transponders are arranged on each mooring anchor chain and used for receiving and feeding back the hydro-acoustic signals emitted by the interrogators. The device is skilful in structure and convenient to operate, and can measure and monitor the integral shape of the mooring system in real time and on line by using the principle of the short base line hydro-acoustic positioning system, so the device can be widely applied in the monitoring process of the mooring system.
Description
Technical field
The present invention relates to the monitoring device and the monitoring method of a kind of ocean mooring system, particularly about a kind of mooring system monitoring device and monitoring method based on short baseline hydrolocation.
Background technology
Mooring system is the main locator meams of marine floating type production, drilling platform.Mooring system need be born environmental loads such as the wave that acts on the platform, ocean current, typhoon.Mooring system fracture under the hurricane effect, platform drift, the disastrous accident of Petroleum Production line break all once took place in the floating offshore platform at the U.S. Gulfian and China South Sea.In order to assess the design of mooring system, guarantee the operate as normal of mooring system, press in the production mooring system is carried out on-line monitoring.
Take the mode of mooring anchor chain bitt stopper top tension force on the monitoring platform to measure in the part floating production platform at present, like semisubmersible production, drilling platform etc.And to the mooring system of swinging moorings such as FPSO (Floating Production Storage & Offloading, Floating Production store easing gear), owing to anchor chain integral body all under water, then can't monitor at present.On platform, can't know the state of bottom mooring system, even the fracture of mooring system anchor chain took place, and ignorant for a long time situation on the platform.For ensureing the safe operation of oil platform, press for it is carried out on-line monitoring.
The difficulty of mooring system monitoring is that mooring system is in the rugged surroundings under water, and traditional sensor is used under water, but can't lay power cable and signal transmission cable to the mooring anchor chain from ship; Can't guarantee the long-term power supply of sensor and the real-time Transmission of monitor signal.The mooring system of having carried out at present both at home and abroad measures that most sensor is battery-powered based on the self-tolerant sensor, and signal storage is not carried out real-time Transmission at sensor internal, does not carry out on-line measurement, but reclaims sensor with the cycle of some months or half a year.This metering system can satisfy checks the mooring system designing requirement, but can't satisfy the requirement of safety monitoring.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind of mooring system monitoring device and monitoring method based on short baseline hydrolocation of can be real-time, online mooring system being monitored.
For realizing above-mentioned purpose, the present invention takes following technical scheme: a kind of mooring system monitoring device based on short baseline hydrolocation, and it is characterized in that: it comprises some interrogation responsors, some seabed transponders and some anchor chain transponders; Each said interrogation responsor is arranged on the bottom of floating platform at interval, each said interrogation responsor stube cable, and the said cable other end connects the platform measuring main frame; Each said seabed transponder is arranged on the seabed, and said seabed transponder receives, feeds back the underwater sound signal that each said interrogation responsor sends; Every the mooring anchor chain is provided with some said anchor chain transponders, and each said anchor chain transponder receives, feeds back the underwater sound signal that each said interrogation responsor sends.
Each said seabed transponder is supplied power by high-capacity battery with each said anchor chain transponder.
The bottom of said floating platform is provided with four said interrogation responsors, and the interval is 40 meters between adjacent two said interrogation responsors.
Said seabed is provided with two said seabed transponders.
Every said mooring anchor chain is provided with two said anchor chain transponders.
Above-mentioned a kind of monitoring method based on the mooring system monitoring device of lacking the baseline hydrolocation, it may further comprise the steps: 1) each interrogation responsor on the floating platform sends underwater sound signal with different separately frequencies respectively and gives each seabed transponder that is positioned at the seabed; 2) each seabed transponder receives the underwater sound signal of each interrogation responsor emission on the floating platform; And give each interrogation responsor with another frequency feedback underwater sound signal; Each interrogation responsor is passed the underwater sound signal of feedback back the platform measuring main frame through signal cable; Measurement host is measured the distance between each interrogation responsor and each seabed transponder respectively according to the underwater sound signal of feedback, and is reference with the position of each seabed transponder, the position of each interrogation responsor on judgement floating platform and the floating platform; 3) each the anchor chain transponder on the mooring anchor chain receives the underwater sound signal of each interrogation responsor on the floating platform synchronously, and gives each interrogation responsor with another frequency feedback underwater sound signal; Each interrogation responsor is passed the underwater sound signal of feedback back measurement host through signal cable; Measurement host is measured the distance between each anchor chain transponder and each interrogation responsor respectively according to the underwater sound signal of reflection; And according to step 2) position of each interrogation responsor of confirming, finally confirm the position of each anchor chain transponder on the mooring anchor chain; 4) measurement host is according to the position of each anchor chain transponder on every root system pool anchor chain; Measure the positional information of unique point on each mooring anchor chain; And according to the catenary theory of mooring anchor chain design; The anti-global shape of releasing the mooring anchor chain is realized the real-time monitoring to mooring system shape, characteristic point position information.
Said floating platform is provided with four interrogation responsors, and one of them said interrogation responsor is as subsequent use.
The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention is provided with some interrogation responsors in the bottom of floating platform, and some seabed transponders are set in the seabed, forms acoustic positioning system; Therefore, can confirm the position of interrogation responsor and floating platform through seabed transponder.2, the present invention's mooring anchor chain is provided with some anchor chain transponders; Because the position of interrogation responsor is confirmed by seabed transponder; And the position of each anchor chain transponder can be confirmed by the interrogation responsor position on the mooring anchor chain, therefore, can realize that the unique point of mooring system is carried out real time position to be measured; Through the anti-mooring system configuration that pushes away of catenary equation; And monitoring information is passed to the platform measuring main frame through cable, and realize the mooring system on-line monitoring of unique point coordinate under water, obtain mooring system configuration information.The present invention can utilize short baseline acoustic positioning system principle, and the global shape of mooring system is carried out real-time online measuring, monitoring, therefore, can be used in the observation process of mooring system.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
As shown in Figure 1, monitoring device of the present invention comprises some interrogation responsor 1, some seabed transponders 2 and some anchor chain transponders 3.
In the foregoing description, the bottom of FPSO ship 4 floating platforms is provided with one of them interrogation responsor 1 conduct backup in 1, four interrogation responsor 1 of four interrogation responsors, avoids certain interrogation responsor 1 signal transmission to go wrong.
In the foregoing description, seabed 5 is provided with two seabed transponders 2.
Each anchor chain transponder 3 of the present invention is arranged on the mooring anchor chain 6, can be provided with two on every mooring anchor chain 6 a plurality of anchor chain transponders 3 perhaps are set as required.Each anchor chain transponder 3 receives the interrogating signal (or instruction) of each interrogation responsor 1, beams back another recall signal different with receive frequency for then each interrogation responsor 1.Each anchor chain transponder 3 is installed by ROV, and special anchor clamps are installed.Each anchor chain transponder 3 is supplied power by high-capacity battery, carries out battery altering through ROV.The present invention utilizes the location positioning of each anchor chain transponder 3 with respect to floating platform, and the mooring system integrality is monitored.
The monitoring method of monitoring device of the present invention is to utilize combination water acoustic fix ranging principle; Mooring system to floating marine oil process units is monitored; And the mooring system characteristic point position information that monitoring is obtained; The mooring system integrality is real-time transmitted to the platform measuring main frame, and its concrete steps are following.
1) each interrogation responsor 1 (more than three) on the floating platform sends underwater sound signal with different separately frequencies respectively and gives each seabed transponder 2 that is positioned at the seabed.
2) each seabed transponder 2 receives the underwater sound signal of each interrogation responsor 1 emission on the floating platform; And give each interrogation responsor 1 with another frequency feedback underwater sound signal; In this process, each interrogation responsor 1 is passed the underwater sound signal of feedback back measurement host through signal cable, and measurement host is measured the distance between each interrogation responsor 1 and each seabed transponder 2 respectively according to the underwater sound signal of feedback; Position with each seabed transponder 2 is reference, judges the position of each interrogation responsor 1 on floating platform and the floating platform.The absolute coordinates of known each seabed transponder 2 can be confirmed the absolute position of floating platform in earth coordinates.
3) each the anchor chain transponder 3 on the mooring anchor chain 6 receives the underwater sound signal of each interrogation responsor 1 on the floating platform synchronously, and gives each interrogation responsor 1 with another frequency feedback underwater sound signal; Each interrogation responsor 1 is passed the underwater sound signal of feedback back measurement host through signal cable; Measurement host is measured the distance between each anchor chain transponder 3 and each interrogation responsor 1 respectively according to the underwater sound signal of reflection; Because the position of each interrogation responsor 1 is confirmed through each seabed transponder 2; Therefore, the position of each anchor chain transponder 3 can be confirmed by the position of each interrogation responsor 1 on the mooring anchor chain 6.
4) measurement host is according to the position of each anchor chain transponder 3 on every root system pool anchor chain 6; Measure the positional information (three-dimensional terrestrial coordinate) of unique point on each mooring anchor chain 6; Catenary theory according to 6 designs of mooring anchor chain; Can instead release the global shape of mooring anchor chain 6, realize real-time monitoring mooring system shape, characteristic point position information.
In the foregoing description, the major function of each seabed transponder 2 is for acoustic array that each interrogation responsor 1 is formed the terrestrial coordinate reference to be provided, and this function also can be through the GPS (GPS) on the floating platform, realizations such as inertial navigation system.
Above-mentioned each embodiment only is used to explain the present invention, and wherein the structure of each parts, connected mode etc. all can change to some extent, and every equivalents of on the basis of technical scheme of the present invention, carrying out and improvement all should not got rid of outside protection scope of the present invention.
Claims (9)
1. mooring system monitoring device based on short baseline hydrolocation, it is characterized in that: it comprises some interrogation responsors, some seabed transponders and some anchor chain transponders; Each said interrogation responsor is arranged on the bottom of floating platform at interval, each said interrogation responsor stube cable, and the said cable other end connects the platform measuring main frame; Each said seabed transponder is arranged on the seabed, and said seabed transponder receives, feeds back the underwater sound signal that each said interrogation responsor sends; Every the mooring anchor chain is provided with some said anchor chain transponders, and each said anchor chain transponder receives, feeds back the underwater sound signal that each said interrogation responsor sends.
2. a kind of mooring system monitoring device based on short baseline hydrolocation as claimed in claim 1, it is characterized in that: each said seabed transponder is supplied power by high-capacity battery with each said anchor chain transponder.
3. a kind of mooring system monitoring device as claimed in claim 1 based on short baseline hydrolocation, it is characterized in that: the bottom of said floating platform is provided with four said interrogation responsors, and the interval is 40 meters between adjacent two said interrogation responsors.
4. a kind of mooring system monitoring device as claimed in claim 2 based on short baseline hydrolocation, it is characterized in that: the bottom of said floating platform is provided with four said interrogation responsors, and the interval is 40 meters between adjacent two said interrogation responsors.
5. like claim 1 or 2 or 3 or 4 described a kind of mooring system monitoring devices based on short baseline hydrolocation, it is characterized in that: said seabed is provided with two said seabed transponders.
6. like claim 1 or 2 or 3 or 4 described a kind of mooring system monitoring devices based on short baseline hydrolocation, it is characterized in that: every said mooring anchor chain is provided with two said anchor chain transponders.
7. a kind of mooring system monitoring device based on short baseline hydrolocation as claimed in claim 5, it is characterized in that: every said mooring anchor chain is provided with two said anchor chain transponders.
8. monitoring method like each described mooring system monitoring device based on short baseline hydrolocation of claim 1～7, it may further comprise the steps:
1) each interrogation responsor on the floating platform sends underwater sound signal with different separately frequencies respectively and gives each seabed transponder that is positioned at the seabed;
2) each seabed transponder receives the underwater sound signal of each interrogation responsor emission on the floating platform; And give each interrogation responsor with another frequency feedback underwater sound signal; Each interrogation responsor is passed the underwater sound signal of feedback back the platform measuring main frame through signal cable; Measurement host is measured the distance between each interrogation responsor and each seabed transponder respectively according to the underwater sound signal of feedback, and is reference with the position of each seabed transponder, the position of each interrogation responsor on judgement floating platform and the floating platform;
3) each the anchor chain transponder on the mooring anchor chain receives the underwater sound signal of each interrogation responsor on the floating platform synchronously, and gives each interrogation responsor with another frequency feedback underwater sound signal; Each interrogation responsor is passed the underwater sound signal of feedback back measurement host through signal cable; Measurement host is measured the distance between each anchor chain transponder and each interrogation responsor respectively according to the underwater sound signal of reflection; And according to step 2) position of each interrogation responsor of confirming, finally confirm the position of each anchor chain transponder on the mooring anchor chain;
4) measurement host is according to the position of each anchor chain transponder on every root system pool anchor chain; Measure the positional information of unique point on each mooring anchor chain; And according to the catenary theory of mooring anchor chain design; The anti-global shape of releasing the mooring anchor chain is realized the real-time monitoring to mooring system shape, characteristic point position information.
9. a kind of monitoring method based on the mooring system monitoring device of lacking the baseline hydrolocation as claimed in claim 8, it is characterized in that: said floating platform is provided with four interrogation responsors, and one of them said interrogation responsor is as subsequent use.
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| CN2011103497544A CN102385051A (en) | 2011-11-08 | 2011-11-08 | Device and method for monitoring mooring system based on short base line hydro-acoustic positioning |
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| CN2011103497544A CN102385051A (en) | 2011-11-08 | 2011-11-08 | Device and method for monitoring mooring system based on short base line hydro-acoustic positioning |
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Cited By (7)
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| CN104132687A (en) * | 2014-06-12 | 2014-11-05 | 中国海洋石油总公司 | Onsite monitoring and prediction system for underwater soft yoke single-point mooring system |
| CN106959429A (en) * | 2017-04-25 | 2017-07-18 | 中国人民解放军海军工程大学 | The Calibration Method of area navigation under water and system based on many orthogonal signalling |
| CN107576476A (en) * | 2017-08-18 | 2018-01-12 | 中国船舶重工集团公司第七〇九研究所 | Ocean nuclear power platform single point mooring integrated monitoring system and method |
| US10370962B2 (en) | 2016-12-08 | 2019-08-06 | Exxonmobile Research And Engineering Company | Systems and methods for real-time monitoring of a line |
| CN111645808A (en) * | 2020-03-24 | 2020-09-11 | 海洋石油工程股份有限公司 | Anchor chain inclination angle real-time acoustic detection system |
| JP2022526981A (en) * | 2019-04-04 | 2022-05-27 | シングル・ブイ・ムーリングス・インコーポレイテッド | How to inspect suspended anchor lines connected to floating objects |
| FR3132499A1 (en) * | 2022-02-10 | 2023-08-11 | Nantes Universite | MONITORING DEVICE FOR AT LEAST ONE ANCHOR LINE FOR FLOATING SUPPORT |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104132687A (en) * | 2014-06-12 | 2014-11-05 | 中国海洋石油总公司 | Onsite monitoring and prediction system for underwater soft yoke single-point mooring system |
| US10370962B2 (en) | 2016-12-08 | 2019-08-06 | Exxonmobile Research And Engineering Company | Systems and methods for real-time monitoring of a line |
| CN106959429A (en) * | 2017-04-25 | 2017-07-18 | 中国人民解放军海军工程大学 | The Calibration Method of area navigation under water and system based on many orthogonal signalling |
| CN107576476A (en) * | 2017-08-18 | 2018-01-12 | 中国船舶重工集团公司第七〇九研究所 | Ocean nuclear power platform single point mooring integrated monitoring system and method |
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| JP7472164B2 (en) | 2019-04-04 | 2024-04-22 | シングル・ブイ・ムーリングス・インコーポレイテッド | Method for inspecting a suspension anchor line connected to a floating object |
| CN111645808A (en) * | 2020-03-24 | 2020-09-11 | 海洋石油工程股份有限公司 | Anchor chain inclination angle real-time acoustic detection system |
| FR3132499A1 (en) * | 2022-02-10 | 2023-08-11 | Nantes Universite | MONITORING DEVICE FOR AT LEAST ONE ANCHOR LINE FOR FLOATING SUPPORT |
| WO2023152435A1 (en) * | 2022-02-10 | 2023-08-17 | Nantes Universite | Device for monitoring at least one anchoring line for a floating support |
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Application publication date: 20120321 |