CN111913228A - Ocean geomagnetic daily variation observation system - Google Patents
Ocean geomagnetic daily variation observation system Download PDFInfo
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- CN111913228A CN111913228A CN201910865347.5A CN201910865347A CN111913228A CN 111913228 A CN111913228 A CN 111913228A CN 201910865347 A CN201910865347 A CN 201910865347A CN 111913228 A CN111913228 A CN 111913228A
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- magnetic force
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/40—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for measuring magnetic field characteristics of the earth
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The application relates to the technical field of geomagnetic daily variation observation, and discloses a deep ocean geomagnetic daily variation observation system, which comprises: a magnetic force measuring device configured to collect geomagnetic daily variation data; a winding device configured to lower the magnetic force measuring device to a preset depth; a power plant configured to provide a driving force; a position control device configured to control the power device to keep the system at a preset position; and the unmanned platform carries the magnetic force measuring device, the hoisting device, the power device and the position control device, provides energy for the magnetic force measuring device, the hoisting device, the power device and the position control device, and can float on the sea surface. The winding device extends the magnetic force measuring device to a certain depth close to the water surface without sinking to the seabed, so that the operation time is greatly reduced.
Description
Technical Field
The application relates to the technical field of geomagnetic daily variation observation, for example to a deep sea geomagnetic daily variation observation system.
Background
At present, ocean magnetic measurement is an important means of ocean geophysical exploration, and geomagnetic daily change is an important link of magnetic measurement work. At present, a seabed geomagnetic daily variation observation station is generally used for acquiring geomagnetic daily variation data far away from the continents. The submarine geomagnetic daily variation observation station can provide proper geomagnetic daily variation correction data for marine magnetic measurement in areas far away from the continents or islands, and the submarine geomagnetic daily variation observation station mainly aims to effectively improve the marine magnetic measurement precision of the measurement areas.
The geomagnetic daily variation correction and measurement needs fixed-point measurement, most of connection modes adopted at home and abroad are anchoring systems, each anchoring system consists of geomagnetic daily variation observation equipment, a buoyancy device, a sonar releaser, a gravity anchor and connected ropes, the working mode is that auxiliary equipment and a seabed daily variation observation equipment instrument are lowered down when the geomagnetic daily variation correction and measurement is carried out, and then the state of the underwater equipment reaching a destination is detected by an acoustic releaser deck control unit. After data acquisition is finished, the deck control unit is used for commanding the acoustic releaser to work on the ship, the motor is driven to release the gravity anchor connected with the acoustic releaser, the gravity anchor reaches the water surface under the traction of the buoyancy device, and then the gravity anchor is salvaged and recovered to read data in geomagnetic daily change station equipment.
Since the distance from the seabed to the sea level in deep and far sea areas is usually several kilometers or even ten thousand meters, when the mooring system is used in deep sea areas, it is time-consuming to put down or retrieve the equipment, and it is difficult to detect the data acquisition state.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a magnetic diurnal variation observation system for deep and far sea, which aims to solve the technical problem that the conventional mooring type measurement consumes time when being operated in deep and far sea.
The magnetic diurnal variation observation system for deep sea and earth provided by the embodiment of the disclosure comprises: a magnetic force measuring device configured to collect geomagnetic daily variation data; a winding device configured to lower the magnetic force measuring device to a preset depth; a power plant configured to provide a driving force; a position control device configured to control the power device to keep the system at a preset position; and the unmanned platform carries the magnetic force measuring device, the hoisting device, the power device and the position control device, provides energy for the magnetic force measuring device, the hoisting device, the power device and the position control device, and can float on the sea surface. The hoisting device enables the magnetic force measuring device to downwards probe the seawater to a certain depth without sinking to the seabed, so that the operation time is greatly reduced.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic structural diagram of a magnetic diurnal variation observation system for deep sea and earth provided by an embodiment of the present disclosure;
FIG. 2 is a block diagram of a magnetic diurnal variation observation system for deep sea and earth in the open sea provided by the embodiment of the present disclosure;
FIG. 3 is a block diagram of a magnetic diurnal variation observation system for deep sea and earth in the open sea provided by the embodiment of the present disclosure;
FIG. 4 is a block diagram of a magnetic diurnal variation observation system for deep sea earth provided by the embodiment of the present disclosure;
fig. 5 is a structural block diagram of a magnetic diurnal variation observation system for deep sea and earth provided by the embodiment of the disclosure.
Reference numerals:
1: a sea surface device; 2: marine equipment; 11: an unmanned platform; 12: a power plant; 13: a hoisting device; 14: a position control device; 15: a communication device; 16: a data storage device; 21: a magnetic force measuring device; 131: a depth control device.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
Referring to fig. 1 and 2, an embodiment of the present disclosure provides a magnetic diurnal variation observation system for deep sea, including: an unmanned platform 11 capable of floating on the sea surface; a magnetic force measuring device 21 configured to collect geomagnetic daily variation data; a hoisting device 13 disposed on the unmanned platform 11, connected to the magnetic force measuring device 21, and configured to lower the magnetic force measuring device 21 to a preset depth; a power device 12 provided to the unmanned platform 11 and configured to provide a driving force to the unmanned platform 11; and the position control device 14 is in control connection with the power device 12 and is configured to control the power device 12 to keep the unmanned platform 11 in a preset area.
The deep and distant sea earth magnetism day becomes observation system mainly includes sea equipment 1 and sea equipment 2, and wherein sea equipment 1 mainly includes unmanned platform 11 and carries on various equipment on unmanned platform 11, includes: a hoisting device 13, a position control device 14 and a power device 12; the marine installation 2 is mainly a magnetometric device 21.
The unmanned platform 11 can be any platform that can move on the sea under unmanned control, especially a small unmanned ship with small size and low energy consumption, and is provided with a device for providing energy, such as a battery, an oil tank, a solar power generation device, and the like, and can provide energy for other devices carried on the unmanned platform 11. Due to the fact that weather conditions of deep and far sea are complex and stormy waves are large, when a common manned ship is adopted, a crew is in a high-risk environment and even has life danger, and if the ship with a high stormy wave resistance level is adopted, the danger of the crew can be reduced, but the operation and maintenance cost of the ship is obviously improved, and the ship is not economical. The unmanned platform 11 is adopted to solve the problems, people do not need to be carried, the unmanned platform 11 only needs to be remotely controlled to work on the sea, and the cost is reduced on the basis of ensuring the life safety of operators.
The magnetometer 21 may be any device capable of observing the diurnal variation of geomagnetism, and is preferably a proton magnetometer.
The end of the cable of the winding device 13 is connected with a magnetic force measuring device 21, and the water penetration depth of the magnetic force measuring device 21 is changed by recovering and releasing the cable.
The power unit 12 can be any device that can drive the hull to sail on the sea, such as a propeller, a water jet, etc.
Since the geomagnetic daily variation observation needs fixed-point measurement, the position control device 14 is provided, so that the geomagnetic daily variation observation system can keep moving within a certain position range, and the effectiveness of data is improved.
The working process is as follows: the position control device 14 can control the power device 12 to drive the unmanned platform 11 to move to a specified observation point, then the hoisting device 13 places the magnetic detection device connected to the tail end of the cable into water for observation at a preset depth, and the position control device 14 timely controls the power device 12 in the observation process to drive the unmanned platform 11 to move so as to compensate the influence of sea wind and water flow on the position of the geomagnetic observation system and enable the sea wind and water flow to be always in a preset position range.
Referring to fig. 3, in some embodiments, the hoisting device 13 includes: a depth control device 131 configured to determine a preset depth according to the hydrological element and/or magnetic anomaly interference of the location where the system is located.
The mooring rope connected with the magnetic force measuring device 21 is inserted into water through the winding device 13, the action form and principle of the mooring rope are similar to those of a ship anchor, the unmanned platform 11 can be stabilized, and the size of the stabilizing action is directly related to the depth of the magnetic force measuring device 21 inserted into the water. When the influence of the hydrological element at the position of the geomagnetic diurnal variation observation system on the position of the geomagnetic diurnal variation observation system is small, the depth of the underwater penetration can be controlled to be shallow, and when the influence of the hydrological element on the position of the geomagnetic diurnal variation observation system is large, the depth of the underwater penetration needs to be controlled to be deep, so that the stabilizing effect on the unmanned platform 11 is enhanced, and the unmanned platform is easier to keep in a preset position range.
Furthermore, the accuracy of the acquired geomagnetic daily variation data is directly related to the depth of the magnetic force measuring device 21 penetrating into the water, because the depth is too shallow, which is greatly interfered by the surrounding magnetic anomaly, and the acquired data is not the magnetic force data in the optimal depth range if the depth is too deep.
Therefore, the depth control device 131 is provided to determine the preset depth according to the hydrological element and/or magnetic abnormal body interference at the position of the system, so that the unmanned platform 11 can be kept at the preset position to assist in maintaining the accuracy of the measured data.
In some embodiments, the hydrologic elements include: ocean currents, tides, waves, and wind speeds.
Ocean currents, tides, waves and wind speeds all cause the platform to move on the sea surface, and when the ocean currents, the tides, the waves and the wind speeds are large, the unmanned platform 11 is forced to move faster, so that the stabilizing effect on the unmanned platform 11 needs to be strengthened, namely, the depth of the magnetic force measuring device 21 in the water is increased.
In some embodiments, the magnetic anomaly interference comprises: interference of the system itself with the magnetometric device 21 and/or interference of the system with the magnetometric device 21 from and to the vessel at the location of the system.
Magnetic anomaly interference is typically generated by electromagnetic radiation generating sources, such as motors, machinery, and the like. Therefore, the power unit 12 and other devices mounted on the observation system itself may have magnetic abnormal-body interference, and ships carrying motors and equipment may also have magnetic abnormal-body interference. When the system is subjected to a large disturbance, it is necessary to keep away from the electromagnetic radiation generating source, i.e., to increase the depth of penetration of the magnetometric device 21 into the water.
In some embodiments, the preset region includes a theoretical location point for geomagnetic daily variation data acquisition.
The accuracy of the geomagnetic daily variation data is directly related to the accuracy of the data acquisition position, so that the theoretical position of the data acquisition is a point, but in the practical application process, due to the influence of hydrologic elements, the magnetic measurement device 21 cannot be guaranteed to be always kept at the point, so that the error caused by position change and the difficulty and economy of position control of an actual observation system are comprehensively considered, a range containing the theoretical position of the geomagnetic daily variation data acquisition is determined, and the range is considered to be a preset position. Therefore, the economical efficiency is considered while the data acquisition accuracy is ensured.
In some embodiments, the position control device 14 includes: the driving control module is configured to start the power device 12 and drive the system to return to the preset area when the current position of the unmanned platform 11 is separated from the preset area; when the current position is in the preset region, the power unit 12 is turned off.
The geomagnetic daily variation observation lasts for a long time, and in order to enable the endurance time of the observation system to meet the requirement of observation duration, energy sources carried on the unmanned platform 11 need to be reasonably utilized. When the current position is in the preset area, the power device 12 is in a closed state, the platform moves freely under the action of the hydrological elements, when the platform is separated from the preset area, the power device 12 is started to drive the platform to move towards the theoretical position point of geomagnetic daily change observation data acquisition, and when the platform arrives, the power device 12 is closed. Thus, the moving speed of the platform is greater than the free moving speed of the platform, so that the power device 12 is in a closed state most of the time, and the endurance time of the observation system is greatly prolonged.
In some embodiments, the position control device 14 further comprises: a positioning device configured to acquire a current position.
The positioning device is a user terminal of a global satellite navigation system and can acquire the coordinates of the current position.
Referring to fig. 4, in some embodiments, further comprising: and the communication device 15 is connected with the magnetic force measuring device 21 in a communication mode and is configured to transmit geomagnetic daily variation data.
The communication device 15 can communicate with a control terminal arranged at a far end, collected geomagnetic daily variation observation data is sent to the control terminal in real time, and an operator can analyze and process the data at the control terminal in real time. Compared with the traditional anchoring type geomagnetic daily variation observation method, the communication device 15 can solve the problem of observation failure caused by equipment failure or external influence, but the time waste caused by the fact that the equipment cannot be known in advance and the low working efficiency caused by the fact that data cannot be transmitted in real time.
In some embodiments, the communication device 15 is also communicatively connected to the winding device 13 and the position control device 14, and is further configured to receive control instructions.
In order to increase the flexibility of control and prevent the observation failure problem caused by the failure of automatic control, a control instruction can be sent through a remote control end, and after receiving the control instruction, the communication device 15 arranged on the platform controls the hoisting device 13 and/or the position control device 14, so as to control the retraction and release of the magnetic force measuring device 21 and the movement of the unmanned platform 11. Therefore, the remote control personnel can send control instructions to control or correct the state of the observation system according to the real-time state of the observation system.
Referring to fig. 5, in some embodiments, further comprising: a data storage device 16 configured to store geomagnetic daily change data.
The data storage device 16 may be a storage device using a flash memory, an optical disc, or a magnetic disc as a medium, and the data acquired by the geomagnetic measurement device may be stored in the data storage device 16, so as to ensure the security of the data.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, the term "and/or" is intended to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Claims (10)
1. An ocean geomagnetic daily variation observation system is characterized by comprising:
the unmanned platform can float on the sea surface;
a magnetic force measuring device configured to collect geomagnetic daily variation data;
the hoisting device is arranged on the unmanned platform, is connected with the magnetic force measuring device and is configured to lower the magnetic force measuring device to a preset depth;
the power device is arranged on the unmanned platform and is configured to provide driving force for the unmanned platform;
the position control device is in control connection with the power device and is configured to control the power device to enable the unmanned platform to be kept in a preset area.
2. The system of claim 1, wherein the hoisting device comprises:
a depth control device configured to determine the preset depth according to hydrological elements and/or magnetic anomaly interference of a location where the system is located.
3. The system of claim 2, wherein the hydrological element comprises: ocean currents, tides, waves, and wind speeds.
4. The system of claim 2, wherein the magnetic anomaly interference comprises: the system per se interferes with the magnetic force measuring device and/or the ship at the position of the system interferes with the magnetic force measuring device.
5. The system of claim 1, wherein the preset area comprises theoretical location points of geomagnetic daily variation data acquisition.
6. The system of claim 1, wherein the position control device comprises: the driving control module is configured to start the power device and drive a system to return to the preset area when the current position of the unmanned platform is separated from the preset area; and when the current position is in the preset area, closing the power device.
7. The system of claim 6, wherein the position control device further comprises:
a positioning device configured to acquire the current position.
8. The system of claim 1, further comprising:
a communication device, communicatively connected with the magnetic force measurement device, configured to transmit the geomagnetic daily variation data.
9. The system of claim 8, wherein the communication device is further communicatively coupled to the hoisting device and the position control device and is further configured to receive control instructions.
10. The system of claim 1, further comprising:
a data storage configured to store the geomagnetic daily change data.
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| CN201910865347.5A CN111913228A (en) | 2019-09-12 | 2019-09-12 | Ocean geomagnetic daily variation observation system |
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| CN201910865347.5A CN111913228A (en) | 2019-09-12 | 2019-09-12 | Ocean geomagnetic daily variation observation system |
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Application publication date: 20201110 |