CN110596759A - High-resolution three-dimensional shallow stratum profile system based on ocean mobile carrying platform - Google Patents
High-resolution three-dimensional shallow stratum profile system based on ocean mobile carrying platform Download PDFInfo
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- CN110596759A CN110596759A CN201910940092.4A CN201910940092A CN110596759A CN 110596759 A CN110596759 A CN 110596759A CN 201910940092 A CN201910940092 A CN 201910940092A CN 110596759 A CN110596759 A CN 110596759A
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- 239000013307 optical fiber Substances 0.000 claims abstract description 15
- 230000005284 excitation Effects 0.000 claims description 14
- 238000013500 data storage Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3843—Deployment of seismic devices, e.g. of streamers
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Abstract
The invention discloses a high-resolution three-dimensional shallow stratum profile system based on an ocean mobile carrying platform, which comprises the ocean mobile carrying platform and data acquisition parts arranged on two sides of the ocean mobile carrying platform, wherein each data acquisition part comprises a plurality of guide connecting supports arranged in parallel, and each guide connecting support is provided with a plurality of optical fiber hydrophones; the system disclosed by the invention integrates the power device and the data acquisition part into a whole, has small overall weight, large draught area and small draught depth, can flexibly course in a shoal area, and solves the problem of marine geophysical exploration in shallow sea and intertidal zones; the three-dimensional grid formed by a plurality of optical fiber hydrophones enriches the acquired three-dimensional data volume, and achieves the data acquisition quality of wide azimuth, high precision and high resolution.
Description
Technical Field
The invention relates to the field of marine geophysical exploration, in particular to a high-resolution three-dimensional shallow stratigraphic section system based on a marine mobile carrying platform.
Background
Marine seismic exploration is the most effective marine exploration technology in the world today, and shallow profilers are common marine exploration instruments that investigate the geologic geophysical structure of the shallow layers of the sea floor. The conventional shallow stratum profiler needs to be dragged to an area to be detected by using a conventional ship body, and as the conventional ship body is limited by draft and the fluctuation of tidal water is too large, a general ship is difficult to navigate in the area, so that a coastal zone shoal area is a difficult area for seismic investigation.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-resolution three-dimensional shallow stratum profile system based on an ocean mobile carrying platform, so as to achieve the purposes of improving the geophysical exploration of high-resolution shallow strata of shoals in coastal zones and changing the geophysical investigation mode of the shoals in the traditional coastal zones.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a high-resolution three-dimensional shallow stratum profile system based on an ocean mobile carrying platform comprises the ocean mobile carrying platform and data acquisition parts arranged on two sides of the ocean mobile carrying platform, wherein each data acquisition part comprises a plurality of guide connecting supports which are arranged in parallel, and each guide connecting support is provided with a plurality of optical fiber hydrophones; the marine mobile carrying platform is internally provided with a system attitude instrument, a central controller, a data memory, a power supply, a seismic source signal excitation device and a power device for providing advancing power for the marine mobile carrying platform.
In the scheme, the ocean mobile carrying platform is an upper cabin body and a lower cabin body, the system attitude instrument, the central controller, the data memory and the power supply are located in the upper cabin body, and the seismic source signal excitation device and the power device are located in the lower cabin body.
In the scheme, the opposite angle positions of the front end and the rear end of the ocean mobile carrying platform are respectively provided with a positioning antenna, and the positioning antennas are in signal connection with navigation software embedded in a central controller.
In the scheme, the top of the ocean mobile carrying platform is provided with a platform antenna for transmitting signals to a shore terminal.
In the scheme, the front end of the ocean mobile carrying platform is provided with the obstacle avoidance video device, and the obstacle avoidance video device is in signal connection with the platform antenna and the central controller.
In the scheme, the flow guide connecting supports comprise 10 flow guide connecting supports which are uniformly distributed on two sides of the ocean mobile carrying platform, each flow guide connecting support is packaged with 6 optical fiber hydrophones by using hard polyester materials, and the interval between every two adjacent optical fiber hydrophones is 0.25 m.
In a further technical scheme, the cross section of the flow guide connecting bracket is streamline.
In the scheme, the ocean mobile carrying platform consists of two streamline hulls.
In the scheme, the voltage of the power supply is 12V or 24V.
Through the technical scheme, the high-resolution three-dimensional shallow stratum profile system based on the ocean mobile carrying platform has the following advantages:
1. the ocean mobile carrying platform provided by the invention is composed of two streamline hulls, the power device and the data acquisition device are integrated into a whole, the integral weight is small, the draught area is large, the draught depth is small, the heading in a shoal area can be flexibly carried out, the ocean geophysical exploration area is perfected, and the ocean geophysical exploration problem in shallow sea and intertidal zones is solved.
2. The invention utilizes the advantage of small appearance of the optical fiber hydrophone, can form a three-dimensional grid through rigid connection, greatly reduces the drag force of the ocean mobile carrying platform, reduces the energy loss of the ocean mobile carrying platform and increases the cruising ability.
3. The data acquisition precision reaches 25cm, high-resolution acquisition precision is really realized, more underground geological structure information can be obtained in the construction process, the acquired three-dimensional data volume is enriched, and the data quality of wide azimuth, high precision and high resolution is achieved.
4. The system attitude instrument, the high-precision positioning antenna and the real-time monitoring obstacle avoidance video device in the ocean mobile carrying platform ensure the effective data acquisition quality of the invention, the safety of the ship body and equipment in navigation and greatly improve the construction efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a side view of an embodiment of the disclosed marine mobile platform;
FIG. 2 is a schematic diagram of a portion of a data collection system according to an embodiment of the present invention;
FIG. 3 is a top view of the marine mobile platform according to the embodiment of the present invention;
FIG. 4 is a bottom view of the marine mobile platform according to the embodiment of the present invention;
FIG. 5 is a schematic view of the internal carrying of the ocean mobile carrying platform of the present invention;
fig. 6 is a schematic diagram of the working principle of the present invention.
In the figure, 1, an ocean mobile carrying platform; 2. a data acquisition section; 3. the flow guide connecting bracket; 4. a seismic source signal excitation device; 5. positioning an antenna; 6. an obstacle avoidance video system; 7. a system attitude instrument; 8. a central control system; 9. a data storage; 10. a power source; 11. a platform antenna; 12. a fiber optic hydrophone; 13. a shoreside terminal; 14. and a power device.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides a high-resolution three-dimensional shallow stratum profile system based on an ocean mobile carrying platform, which comprises the following specific embodiments:
the utility model provides a three-dimensional shallow stratum section system of high resolution based on ocean removes carries platform, includes ocean removes carries platform 1, data acquisition part 2, water conservancy diversion linking bridge 3, seismic source signal excitation device 4, positioning antenna 5, keeps away barrier video unit 6, system attitude appearance 7, central controller 8, data memory 9, power 10, platform antenna 11, optic fibre hydrophone 12 and bank terminating machine 13.
As shown in fig. 5, the marine mobile carrying platform 1 is an upper cabin and a lower cabin, the system attitude indicator 7, the central controller 8, the data memory 9 and the power supply 10 are located in the upper cabin, and the seismic source signal excitation device 4 and the power device 14 are located in the lower cabin.
As shown in fig. 6, the central controller 8 is used for controlling the center of the whole set of high-resolution three-dimensional shallow stratigraphic section system based on the ocean mobile platform. The seismic data acquired by the data acquisition portion 2 need to be transmitted back to the central controller 8 in real time and distributed to the data storage 9 through the central controller 8. The parameters of the seismic source sound wave signal of the seismic source signal excitation device 4 and the excitation mode are set and sent out by the central controller 8. The positioning information in the positioning antenna 5 is transmitted back to the central controller 8 in real time, the navigation software is installed in the central controller 8, and the heading, the speed and the navigation track are set in the central controller 8. The central controller 8 controls the view screen data collected by the obstacle avoidance video device 6 to be transmitted back to the shore terminal 13 through the platform antenna 11, and the video is selectively stored in the data storage 9 through the terminal 13. Attitude data of the marine mobile carrying platform 1 acquired by the system attitude instrument 7 is recorded in a data memory 9 through a central controller 8.
The seismic source signal excitation device 4 functions to excite a sound wave signal as a seismic source of the whole system. The seismic source signal excitation device 4 carries out excitation at equal time intervals or at equal intervals according to a series of parameters such as frequency, amplitude and the like set by the central controller 8. The source signal excitation means 4 are of different types, with specific reference to power consumption and design requirements.
The system attitude instrument 7 measures attitude parameters of the ocean mobile carrying platform 1 in real time, and comprises parameters such as a rolling angle, a pitching angle and a rotating angle. The parameters are obtained by determining the real-time position and posture of the optical fiber hydrophone 11 in the data acquisition part 2 for accurate subsequent data processing.
The data memory 9 is used for storing the seismic data obtained by the data acquisition part 2, the positioning data of the navigation positioning system 5, the video data of the obstacle avoidance video device 6 and the posture data obtained by the system posture instrument 7.
The power source 10 is the power drain that supplies the entire system. The capacity of the power supply 10 needs to be calculated strictly in terms of the electrical power consumption of each part and guarantees 25% redundancy. The voltage of the power supply 10 is conventional 12V or 24V.
The ocean moving carrying platform 1 consists of two streamline hulls as shown in figures 3 and 4, and has the function of ensuring the stability during sailing. Compared with the conventional ship which is difficult to sail in the shoal area, the marine mobile carrying platform 1 disclosed by the invention adopts a double-body platform, the power part and the acquisition part are integrated into a whole, the whole weight is small, the draught area is large, the draught depth is small, and the course of the shoal area can be flexible.
The opposite angle positions of the front end and the rear end of the ocean mobile carrying platform 1 are respectively provided with a positioning antenna 5, and the positioning antennas 5 are in signal connection with navigation software embedded in a central controller 8. The positioning antenna 5 and the navigation software form a positioning navigation system, and the navigation positioning system can be accessed to the current mainstream satellite signals of China Beidou, American GPS, European Galileo and the like. Two positioning antennas 5 are arranged at the diagonal positions of the ocean mobile carrying platform 1, so that the real-time position of each optical fiber hydrophone 12 in the data acquisition part can be accurately positioned according to the triangular relation. The navigation software is used for performing navigation work of the whole system according to preset course, navigational speed and navigational track.
As shown in fig. 1, the front end of the ocean mobile carrying platform 1 is provided with an obstacle avoidance video device 6, the obstacle avoidance video device 6 transmits video data in the sailing process in real time through a platform antenna 11 installed at the top of the ocean mobile carrying platform 1, the sailing environment of the ocean mobile carrying platform 1 is synchronously monitored by shore operators through a shore terminal 13, when an obstacle is encountered, the sailing scheme is timely adjusted by the shore operators on the shore terminal 13, and the data quality and the platform sailing safety are ensured. In signal connection with the platform antenna 11 and the central controller 8. The view screen data collected by the obstacle avoidance video device 6 are transmitted back to the shore terminal through the platform antenna on one hand, and on the other hand, videos are selectively stored in the data storage 9 through the shore terminal.
The data acquisition part 2 is used for acquiring signals after the seismic source signal excitation device 4 excites and reflects the signals back through the underground stratum, and the signals can reflect the underground geological structure. As shown in fig. 2, 3 and 4, the data acquisition part 2 includes a plurality of flow guide connection brackets 3 arranged in parallel, and each flow guide connection bracket 3 is provided with a plurality of optical fiber hydrophones 12. The diversion connecting bracket 3 is used for connecting the data acquisition part and reducing seawater resistance, and the cross section of the diversion connecting bracket 3 is streamline to reduce water flow resistance generated in the sailing process of the ocean mobile carrying platform 1.
In this embodiment, the flow guide connection supports 3 include 10, and are uniformly distributed on two sides of the ocean mobile carrying platform 1, 6 optical fiber hydrophones 12 are packaged on each flow guide connection support 3 by using a hard polyester material, the interval between adjacent optical fiber hydrophones 12 is 0.25m, and data acquired by the optical fiber hydrophones 12 are connected in parallel, so that the independence of the acquired data is ensured.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A high-resolution three-dimensional shallow stratum profile system based on an ocean mobile carrying platform is characterized by comprising the ocean mobile carrying platform and data acquisition parts arranged on two sides of the ocean mobile carrying platform, wherein each data acquisition part comprises a plurality of guide connecting supports arranged in parallel, and each guide connecting support is provided with a plurality of optical fiber hydrophones; the marine mobile carrying platform is internally provided with a system attitude instrument, a central controller, a data memory, a power supply, a seismic source signal excitation device and a power device for providing advancing power for the marine mobile carrying platform.
2. The marine mobile platform-based high-resolution three-dimensional shallow stratigraphic profile system according to claim 1, wherein the marine mobile platform is an upper hull and a lower hull, the attitude indicator, the central controller, the data storage and the power supply are located in the upper hull, and the seismic source signal excitation device and the power device are located in the lower hull.
3. The high-resolution three-dimensional shallow stratigraphic section system based on the ocean mobile carrier platform of claim 1, wherein the ocean mobile carrier platform is provided with a positioning antenna at each of the front and rear opposite corners thereof, and the positioning antenna is in signal connection with navigation software embedded in a central controller.
4. The high-resolution three-dimensional shallow stratigraphic profile system based on the marine mobile carrier platform as claimed in claim 1, wherein a platform antenna for transmitting signals to a shore terminal is installed on the top of the marine mobile carrier platform.
5. The high-resolution three-dimensional shallow stratum profile system based on the ocean mobile carrying platform is characterized in that an obstacle avoidance video device is arranged at the front end of the ocean mobile carrying platform and is in signal connection with a platform antenna and a central controller.
6. The high-resolution three-dimensional shallow stratum profile system based on the ocean mobile carrier platform is characterized in that the number of the flow guide connecting supports is 10, the flow guide connecting supports are uniformly distributed on two sides of the ocean mobile carrier platform, each flow guide connecting support is provided with 6 optical fiber hydrophones packaged by hard polyester materials, and the interval between every two adjacent optical fiber hydrophones is 0.25 m.
7. The high-resolution three-dimensional shallow stratum profile system based on the ocean mobile carrying platform is characterized in that the cross section of the flow guide connecting bracket is streamline.
8. The high-resolution three-dimensional shallow stratigraphic section system based on the marine mobile carrying platform is characterized in that the marine mobile carrying platform consists of two streamlined hulls.
9. The high-resolution three-dimensional shallow stratigraphic section system based on the ocean mobile carrier platform of claim 1, wherein the voltage of the power supply is 12V or 24V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910940092.4A CN110596759B (en) | 2019-09-30 | 2019-09-30 | High-resolution three-dimensional shallow stratum profile system based on ocean mobile carrying platform |
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| CN201910940092.4A CN110596759B (en) | 2019-09-30 | 2019-09-30 | High-resolution three-dimensional shallow stratum profile system based on ocean mobile carrying platform |
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| CN110596759A true CN110596759A (en) | 2019-12-20 |
| CN110596759B CN110596759B (en) | 2024-08-09 |
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Cited By (2)
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| CN115857014A (en) * | 2022-12-08 | 2023-03-28 | 南方海洋科学与工程广东省实验室(珠海) | Three-dimensional shallow stratum section and buried target detection device and method |
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Inventor after: Wei Jia Inventor after: Yang Huiliang Inventor after: Lu Kai Inventor after: Yang Yuan Inventor after: Feng Jing Inventor after: Xu Huayuan Inventor after: Li Yang Inventor after: Shan Rui Inventor before: Yang Huiliang Inventor before: Lu Kai Inventor before: Wei Jia Inventor before: Yang Yuan Inventor before: Feng Jing Inventor before: Xu Huayuan Inventor before: Li Yang Inventor before: Shan Rui |
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