Offshore real-time internal wave observation system and method based on three anchors

Abstract

The invention belongs to the technical field of marine instruments, and particularly relates to an offshore real-time internal wave observation system and method based on three anchors, and the system comprises a three-anchor fixing frame system, a real-time internal wave observation system and a shore station terminal system. Wherein the real-time internal wave observation system is fixed in the three-anchor fixing frame system in a sliding connection manner, and the real-time internal wave observation system moves up and down along the three-anchor fixing frame system and cannot rotate in the horizontal direction under different sea surface heights, so that the stability of an observation environment is ensured; the real-time internal wave observation system is used for collecting real-time observation data and sending the real-time observation data to the shore station terminal system for processing; and the shore station terminal system is used for analyzing according to the received real-time observation data and detecting whether internal waves exist so as to judge whether to provide early warning. According to the invention, the complete measurement of the internal solitary wave in the ocean can be realized for a long time, the time resolution and the space resolution are very high, and good data are provided for the research of the internal wave.

Description

Technical Field

[0001] The invention belongs to the technical field of marine instruments, and in particular is a near-shore real-time internal wave observation system and method based on three anchors. Background Art

[0002] Although internal waves are not as turbulent as the waves on the sea surface, they hide in the water and cause trouble secretly, often catching people off guard, so they are called "underwater devils". The destructive power of internal waves mainly comes from the formation of two internal wave currents with opposite directions above and below the jump layer that produces internal waves. This internal wave current can be as high as 1.5 meters per second, like a pair of scissors, with very strong destructive power. Therefore, internal wave observation and early warning equipment is usually required around offshore marine facilities to reduce the damage of ocean internal waves to offshore marine facilities. At present, real-time observation of internal waves is mainly carried out through acoustic Doppler current profilers (ADCP) or single-anchor real-time buoy temperature chains to provide internal wave alarms.

[0003] The Acoustic Doppler Current Profiler (ADCP) determines whether internal waves are generated by acoustically measuring the velocity of ocean currents at different depths. However, the Acoustic Doppler Current Profiler (ADCP) is relatively expensive. If internal wave warnings in different directions are to be completed, it is necessary to deploy warning arrays, and the cost of using the Acoustic Doppler Current Profiler (ADCP) will be very high.

[0004] The single-anchor real-time buoy temperature chain detects whether internal waves are generated based on temperature. However, under the influence of ocean currents, the sea surface buoy usually rotates in the horizontal direction, causing the temperature chain to be broken. This is why the single-anchor real-time buoy temperature chain cannot be used on a large scale. Summary of the invention

[0005] The purpose of the present invention is to provide a near-shore real-time internal wave observation system based on three anchors. Through the near-shore real-time internal wave observation system based on three anchors, the temperature chain works in a stable measurement environment. Since the temperature detector consumes little power, the temperature detector is kept working all the time, and the internal wave is detected in real time through temperature changes. When the arrival of the internal wave is detected, the temperature chain will show obvious internal wave characteristics. After the shore terminal system analyzes the internal wave, it will issue an internal wave warning, leaving precious time for marine facilities to respond to the internal wave in advance.

[0006] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a three-anchor based offshore real-time internal wave observation system, comprising: a three-anchor fixed frame system, a real-time internal wave observation system and a shore station terminal system;

[0007] The real-time internal wave observation system is fixed in the three-anchor fixing frame system in a sliding connection manner. Under different sea surface heights, the real-time internal wave observation system moves up and down along the three-anchor fixing frame system and cannot rotate in the horizontal direction, thereby ensuring the stability of the observation environment;

[0008] The real-time internal wave observation system is used to collect real-time observation data and send the real-time observation data to the shore station terminal system for processing;

[0009] The shore station terminal system is used to analyze the received real-time observation data to detect whether there are internal waves, so as to determine whether to provide an early warning.

[0010] The three-anchor fixing frame system comprises: an upper circular fixing frame A, a fixing rod B, a lower circular buoyancy fixing frame C, a fixing cable and an anchor;

[0011] The upper circular fixing frame A and the lower circular buoyancy fixing frame C are arranged in parallel;

[0012] Three fixing rods B are provided between the upper circular fixing frame A and the lower circular buoyancy fixing frame C; the fixing rods B are vertically and evenly distributed on the edges of the upper circular fixing frame A and the lower circular buoyancy fixing frame C;

[0013] The upper circular fixing frame A, the fixing rod B and the lower circular buoyancy fixing frame C are connected to each other by welding to form a stable fixing frame;

[0014] A fixing cable is provided at the connection between the lower circular buoyancy fixing frame C and the fixing rod B; an anchor is connected to the end of each fixing cable; the three fixing cables and three anchors stably fix the fixing frame in the water at a low tide position, and the fixing frame remains in a stable and unchanged position regardless of low tide or high tide.

[0015] The lower circular buoyancy fixing frame C is a stainless steel frame wrapped with buoyancy material to provide buoyancy to the entire above-water part of the fixing frame so that the fixing frame can float stably on the water surface.

[0016] The real-time observation data include: profile temperature data and the deepest depth value.

[0017] The real-time internal wave observation system comprises: a housing, a collection and communication controller, a fixing rod A, a collar, a temperature chain, a data collection unit, an underwater motor system and a fixing anchor;

[0018] The housing is arranged on the central axis in the three-anchor fixing frame system; the acquisition and communication controller is arranged in the housing;

[0019] The number of the fixing rods A is the same as the number of the fixing rods B; the fixing rods A are evenly distributed on the housing, and the layout positions are the same as the layout positions of the fixing rods B;

[0020] A collar is provided at the end of the fixing rod A; the collar is sleeved on the fixing rod B of the three-anchor fixing frame system so that the housing slides up and down along the central axis of the three-anchor fixing frame system;

[0021] One end of the temperature chain is fixedly connected to the bottom of the housing, and the other end is connected to a fixed anchor; a data acquisition unit is provided on the temperature chain;

[0022] The underwater motor system is arranged in a protective shell on the temperature chain and is connected to the acquisition and communication controller so that when the underwater motor rotates, it receives the control instructions sent by the shore station terminal system to the acquisition and communication controller, controls the tensioning or releasing of the temperature chain, keeps the data acquisition units on the temperature chain in the same profile, and ensures that the temperature chain is in a straightened state, so that the temperature field data collected by the temperature chain can meet the internal wave detection requirements.

[0023] The shell is a transparent plastic shell, so that the collection and communication controller can be charged by solar energy through the transmitted sunlight.

[0024] The data acquisition unit includes: a temperature probe and a depth gauge connected to the acquisition and communication controller via a data communication line;

[0025] A plurality of temperature probes are evenly distributed on the chain body of the temperature chain from top to bottom, for collecting temperature data of different sections;

[0026] The depth meter is arranged in a protective shell at the underwater motor system and is used to collect depth data to calculate temperature field data at different depths;

[0027] The acquisition and communication controller receives the temperature data of different sections sent by the temperature probe and the depth data collected by the depth meter through two data communication lines on the temperature chain.

[0028] The shore terminal system includes: a receiving antenna, a data transmission cable and a data server;

[0029] The receiving antenna is connected to the real-time internal wave observation system and is used to receive real-time observation data from the real-time internal wave observation system, and transmit the received real-time observation data to a data server through a data transmission cable for storage, analysis and display.

[0030] An internal wave observation method of a three-anchor offshore real-time internal wave observation system comprises the following steps:

[0031] 1) According to the historical tide data of the deployment point, the height of the three-anchor fixed frame system is determined by taking the difference between the maximum tide level and the minimum tide level, that is, the length of the three fixed rods B, so as to ensure that the real-time internal wave observation system floats above the water surface regardless of the tide level;

[0032] 2) According to the tide data of previous years, take the depth of the lowest tide and determine the length of the temperature chain;

[0033] 3) The three-anchor system is deployed at the lowest tide to ensure that no matter how the tide level changes, the three fixing cables are in a taut state and the three-anchor system does not rotate horizontally when pulled;

[0034] 4) The real-time internal wave observation system collects the profile temperature data and the deepest depth value in real time through the temperature chain and depth gauge, and sends it to the shore terminal system in real time; the underwater motor system implements the control instructions sent by the shore terminal system, and controls the tension and release of the temperature chain through the underwater motor to ensure that the temperature chain is in a taut state under the action of the fixed anchor regardless of the tide level;

[0035] 5) The shore station terminal system receives real-time observation data from the real-time internal wave observation system through the receiving antenna, and transmits the received data to the data server through the data transmission cable for storage and analysis, obtains the profile temperature field, detects whether there are internal waves, and determines whether to provide an early warning.

[0036] The present invention has the following beneficial effects and advantages:

[0037] 1. The present invention can realize complete measurement of internal solitary waves in the ocean for a long time, has high time resolution and spatial resolution, and provides good data for the study of internal waves.

[0038] 2. The present invention can realize a comprehensive and stable internal wave early warning system at a relatively low cost.

[0039] 3. The present invention uses solar energy as energy source and can theoretically operate indefinitely after deployment. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 is a schematic structural diagram of the three-anchor fixing frame system of the present invention;

[0042] Figure 3 is a structural schematic diagram of the real-time internal wave observation system of the present invention;

[0043] Figure 4 It is a structural schematic diagram of the shore terminal system of the present invention;

[0044] Among them, 1 is a three-anchor fixed frame system, 2 is a real-time internal wave observation system, 3 is a shore station terminal system, 101 is an upper circular fixed frame A, 102 is a fixed rod B, 103 is a lower circular buoyancy fixed frame C, 104 is a fixed cable, 105 is an anchor, 201 is an outer shell, 202 is a collection and communication controller, 203 is a fixed rod, 204 is a collar, 205 is a temperature chain, 206 is a depth gauge, 207 is a fixed anchor, 301 is a receiving antenna, 302 is a data transmission cable, and 303 is a data server. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0046] like Figure 1 As shown, it is a schematic diagram of the overall structure of the present invention. The present invention is a three-anchor based offshore real-time internal wave observation system, comprising: a three-anchor fixed frame system 1, a real-time internal wave observation system 2 and a shore station terminal system 3;

[0047] The real-time internal wave observation system 2 is fixed in the three-anchor fixing frame system 1 in a sliding connection manner. Under different sea surface heights, the real-time internal wave observation system 2 moves up and down along the three-anchor fixing frame system 1 and cannot rotate in the horizontal direction, thereby ensuring the stability of the observation environment;

[0048] A real-time internal wave observation system 2, used to collect real-time observation data and send the real-time observation data to a shore station terminal system 3 for processing;

[0049] The shore terminal system 3 is used to analyze the received real-time observation data to detect whether there are internal waves, so as to determine whether to provide an early warning.

[0050] like Figure 2 , which is a schematic structural diagram of the three-anchor fixing frame system of the present invention, wherein the three-anchor fixing frame system 1 comprises: an upper circular fixing frame A101, a fixing rod B102, a lower circular buoyancy fixing frame C103, a fixing cable 104 and an anchor 105;

[0051] The upper circular fixing frame A101 and the lower circular buoyancy fixing frame C103 are arranged in parallel;

[0052] Three fixing rods B102 are provided between the upper circular fixing frame A101 and the lower circular buoyancy fixing frame C103; the fixing rods B102 are vertically and evenly distributed on the edges of the upper circular fixing frame A101 and the lower circular buoyancy fixing frame C103;

[0053] The upper circular fixing frame A101, the fixing rod B102 and the lower circular buoyancy fixing frame C103 are connected together by welding to form a stable fixing frame;

[0054] A fixing cable 104 is provided at the connection between the lower circular buoyancy fixing frame C103 and the fixing rod B102; an anchor 105 is connected to the end of each fixing cable 104; the three fixing cables 104 and the three anchors 105 stably fix the fixing frame in the water at a low tide position, and the fixing frame remains in a stable and unchanged position regardless of low tide or high tide.

[0055] The lower circular buoyancy fixing frame C103 is a stainless steel frame wrapped with buoyancy material, which provides buoyancy for the entire above-water part of the fixing frame, so that the fixing frame can float stably on the water surface.

[0056] Real-time observation data include: profile temperature data and the deepest depth value.

[0057] like Figure 3 As shown, it is a structural schematic diagram of the real-time internal wave observation system of the present invention, the real-time internal wave observation system 2, including: a housing 201, a collection and communication controller 202, a fixing rod A203, a collar 204, a temperature chain 205, a data collection unit, an underwater motor system and a fixing anchor 207;

[0058] The housing 201 is disposed on the central axis of the three-anchor fixing frame system 1; the acquisition and communication controller 202 is disposed in the housing;

[0059] The number of the fixing rods A203 is the same as the number of the fixing rods B102; the fixing rods A203 are evenly distributed on the housing 201, and the layout positions are the same as the layout positions of the fixing rods B102;

[0060] A collar 204 is provided at the end of the fixing rod A203; the collar 204 is sleeved on the fixing rod B102 of the three-anchor fixing frame system 1, so that the housing 201 slides up and down along the central axis of the three-anchor fixing frame system 1;

[0061] One end of the temperature chain 205 is fixedly connected to the bottom of the housing 201, and the other end is connected to the fixed anchor 207. The function of the fixed anchor 207 is to fix the real-time internal wave observation system 2 in a position and keep it unchanged. A data acquisition unit is provided on the temperature chain 205.

[0062] The underwater motor system is arranged in a protective shell on the temperature chain 205 and is connected to the acquisition and communication controller 202, so that when the underwater motor rotates, it receives the control instructions sent by the shore station terminal system 3 to the acquisition and communication controller 202, controls the temperature chain 205 to be tightened or released, keeps the data acquisition units on the temperature chain 205 in the same profile, and ensures that the temperature chain 205 is in a straightened state, so that the temperature field data collected by the temperature chain 205 can meet the internal wave detection requirements.

[0063] The housing 201 is a transparent plastic housing so that the collection and communication controller 202 can be solar charged by the sunlight passing through.

[0064] The data acquisition unit includes: a temperature probe and a depth gauge 206 connected to the acquisition and communication controller 202 via a data communication line;

[0065] A plurality of temperature probes are evenly distributed on the chain body of the temperature chain 205 from top to bottom, for collecting temperature data of different sections;

[0066] The depth meter 206 is disposed in a protective shell at the underwater motor system and is used to collect depth data to calculate temperature field data at different depths;

[0067] The acquisition and communication controller 202 receives the temperature data of different sections sent by the temperature probe and the depth data collected by the depth meter 206 through two data communication lines on the temperature link 205 .

[0068] like Figure 3 As shown, the real-time internal wave observation system 2 also includes: an underwater motor system; the underwater motor system and the depth meter 206 are arranged in the same shell; the underwater motor system transmits temperature data through the data communication line on the temperature chain 205, and at the same time provides power to the depth meter 206 and the underwater motor system and controls the rotation of the underwater motor to adjust the depth meter and the distance between the underwater motor system 206 and the fixed anchor 207.

[0069] The depth data collected by the depth meter 206 is to provide depth data to the collection and communication controller 202 to adjust the underwater motor system to control the rotation of the underwater motor, thereby adjusting the distance between the depth meter and the underwater motor system 206 and the fixed anchor 207, so that the depth of the depth meter remains at a stable depth, thereby providing a stable environment for obtaining the temperature field for the temperature chain 205.

[0070] like Figure 4 As shown, it is a schematic diagram of the structure of the shore station terminal system of the present invention, wherein the shore station terminal system 3 includes: a receiving antenna 301, a data transmission cable 302 and a data server 303;

[0071] The receiving antenna 301 is connected to the real-time internal wave observation system 2 and is used to receive real-time observation data from the real-time internal wave observation system 2, and transmit the received real-time observation data to the data server 303 through the data transmission cable 302 for storage, analysis and display.

[0072] like Figure 1 As shown, through a three-anchor based offshore real-time internal wave observation system of the present invention, the internal wave observation method of the present invention comprises the following steps:

[0073] 1) According to the historical tide data of the deployment point, the height of the three-anchor fixed frame system 1 is determined by taking the difference between the maximum tide level and the minimum tide level, that is, the length of the three fixed rods B102, so as to ensure that the real-time internal wave observation system 2 floats above the water surface regardless of the tide level;

[0074] 2) According to the tide data of previous years, take the depth of the lowest tide and determine the length of the temperature chain 205;

[0075] 3) deploying the three-anchor fixing frame system 1 at the lowest tide to ensure that no matter how the tide level changes, the three fixing cables 104 are in a taut state, and pulling the three-anchor fixing frame system 1 does not cause horizontal rotation;

[0076] 4) The real-time internal wave observation system 2 collects the profile temperature data and the deepest depth value in real time through the temperature chain 205 and the depth meter 206, and sends them to the shore terminal system 3 in real time; the underwater motor system implements the control instructions received from the shore terminal system 3, and controls the tension and release of the temperature chain 205 through the underwater motor to ensure that the temperature chain 205 is in a taut state under the action of the fixed anchor 207 regardless of the tide level;

[0077] 5) The shore terminal system 3 receives the real-time observation data from the real-time internal wave observation system 2 through the receiving antenna 301, and transmits the received data to the data server 303 through the data transmission cable 302 for storage and analysis, obtains the profile temperature field, detects whether there are internal waves, and thus determines whether to provide an early warning.

[0078] Those skilled in the art will appreciate that the above are only preferred embodiments of the present invention, and the various embodiments of the present disclosure and / or the features described in the claims may be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present disclosure. It is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or perform equivalent substitutions on some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0079] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A three-anchor based offshore real-time internal wave observation system, characterized in that: include: Three anchor fixing frame system (1), real-time internal wave observation system (2) and shore station terminal system (3); The real-time internal wave observation system (2) is fixed in the three-anchor fixing frame system (1) in a sliding connection manner. Under different sea surface heights, the real-time internal wave observation system (2) moves up and down along the three-anchor fixing frame system (1) and cannot rotate in the horizontal direction, thereby ensuring the stability of the observation environment; The real-time internal wave observation system (2) is used to collect real-time observation data and send the real-time observation data to the shore station terminal system (3) for processing; The shore terminal system (3) is used to analyze the received real-time observation data to detect whether internal waves exist, thereby determining whether to provide an early warning.

2. A three-anchor offshore real-time internal wave observation system according to claim 1, characterized in that: The three-anchor fixing frame system (1) comprises: an upper circular fixing frame A (101), a fixing rod B (102), a lower circular buoyancy fixing frame C (103), a fixing cable (104) and an anchor (105); The upper circular fixing frame A (101) and the lower circular buoyancy fixing frame C (103) are arranged in parallel; Three fixing rods B (102) are provided between the upper circular fixing frame A (101) and the lower circular buoyancy fixing frame C (103); the fixing rods B (102) are vertically and evenly distributed on the edges of the upper circular fixing frame A (101) and the lower circular buoyancy fixing frame C (103); The upper circular fixing frame A (101), the fixing rod B (102) and the lower circular buoyancy fixing frame C (103) are connected to each other by welding to form a stable fixing frame; A fixing cable (104) is provided at the connection point between the lower circular buoyancy fixing frame C (103) and the fixing rod B (102); an anchor (105) is connected to the end of each fixing cable (104); three fixing cables (104) and three anchors (105) stably fix the fixing frame in the water at a low tide position, and the fixing frame remains in a stable and unchanged position regardless of low tide or high tide.

3. A three-anchor offshore real-time internal wave observation system according to claim 2, characterized in that: The lower circular buoyancy fixing frame C (103) is a stainless steel frame wrapped with buoyancy material to provide buoyancy to the entire above-water part of the fixing frame, so that the fixing frame can float stably on the water surface.

4. The three-anchor offshore real-time internal wave observation system according to claim 1, characterized in that: The real-time observation data include: profile temperature data and the deepest depth value.

5. The three-anchor offshore real-time internal wave observation system according to claim 1, characterized in that: The real-time internal wave observation system (2) comprises: a housing (201), a collection and communication controller (202), a fixing rod A (203), a collar (204), a temperature chain (205), a data collection unit, an underwater motor system and a fixing anchor (207); The housing (201) is arranged on the central axis in the three-anchor fixing frame system (1); the acquisition and communication controller (202) is arranged in the housing; The number of the fixing rods A (203) is the same as the number of the fixing rods B (102); the fixing rods A (203) are evenly distributed on the housing (201) and the distribution positions are the same as the distribution positions of the fixing rods B (102); A collar (204) is provided at the end of the fixing rod A (203); the collar (204) is sleeved on the fixing rod B (102) of the three-anchor fixing frame system (1) so that the housing (201) slides up and down along the central axis of the three-anchor fixing frame system (1); One end of the temperature chain (205) is fixedly connected to the bottom of the housing (201), and the other end is connected to the fixing anchor (207) to fix the real-time internal wave observation system (2) in one position and keep it unchanged; a data acquisition unit is provided on the temperature chain (205); The underwater motor system is arranged in a protective shell on the temperature chain (205) and is connected to the acquisition and communication controller (202) so that when the underwater motor rotates, it receives a control instruction sent by the shore station terminal system (3) to the acquisition and communication controller (202), controls the temperature chain (205) to be tightened or released, keeps the data acquisition units on the temperature chain (205) in the same cross-section, and ensures that the temperature chain (205) is in a straightened state, so that the temperature field data collected by the temperature chain (205) can meet the internal wave detection requirements.

6. A three-anchor offshore real-time internal wave observation system according to claim 5, characterized in that: The housing (201) is a transparent plastic housing, so that the collection and communication controller (202) can be charged by solar energy through the sunlight that penetrates.

7. The three-anchor offshore real-time internal wave observation system according to claim 5, characterized in that: The data acquisition unit comprises: a temperature probe and a depth gauge (206) connected to the acquisition and communication controller (202) via a data communication line; A plurality of temperature probes are evenly distributed on the chain body of the temperature chain (205) from top to bottom, for collecting temperature data of different sections; The depth meter (206) is arranged in a protective shell at the underwater motor system and is used to collect depth data to calculate temperature field data at different depths; The acquisition and communication controller (202) receives temperature data of different sections sent by the temperature probe and depth data collected by the depth meter (206) through two data communication lines on the temperature chain (205).

8. The three-anchor offshore real-time internal wave observation system according to claim 1, characterized in that: The shore terminal system (3) comprises: a receiving antenna (301), a data transmission cable (302) and a data server (303); The receiving antenna (301) is connected to the real-time internal wave observation system (2) and is used to receive real-time observation data from the real-time internal wave observation system (2), and transmit the received real-time observation data to the data server (303) through the data transmission cable (302) for storage, analysis and display.

9. The internal wave observation method based on the three-anchor offshore real-time internal wave observation system according to claims 1 to 8, characterized in that: The following steps are involved: 1) According to the historical tide level data of the deployment point, the height of the three-anchor fixed frame system (1) is determined by taking the difference between the maximum tide level and the minimum tide level, that is, the length of the three fixed rods B (102), so as to ensure that the real-time internal wave observation system (2) floats above the water surface regardless of the tide level; 2) Based on the tide data of previous years, take the depth of the lowest tide and determine the length of the temperature chain (205); 3) deploying the three-anchor fixing frame system (1) at the lowest tide to ensure that no matter how the tide level changes, the three fixing cables (104) are in a taut state, and pulling the three-anchor fixing frame system (1) does not cause horizontal rotation; 4) The real-time internal wave observation system (2) collects the profile temperature data and the deepest depth value in real time through the temperature chain (205) and the depth meter (206), and sends the data to the shore terminal system (3) in real time; the underwater motor system implements the control command received from the shore terminal system (3), and controls the tension and release of the temperature chain (205) through the underwater motor, so as to ensure that the temperature chain (205) is in a taut state under the action of the fixed anchor (207) regardless of the tide level; 5) The shore terminal system (3) receives the real-time observation data from the real-time internal wave observation system (2) via the receiving antenna (301), and transmits the received data to the data server (303) via the data transmission cable (302) for storage and analysis, thereby obtaining the profile temperature field, detecting whether there are internal waves, and determining whether to provide an early warning.

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