A deep sea condition monitoring system based on tiantong satellite and buoy

Abstract

The application relates to the technical field of sea state monitoring, and discloses a deep-sea state monitoring system based on Tianhong satellite and a buoy. The buoy is characterized in that the buoy comprises a floating platform, inner cabins and protection cabins are arranged in the floating platform, and a plurality of protection cabins are horizontally distributed around the inner cabins; a driving mechanism is arranged on the floating platform and used for controlling the movement of the floating platform, the driving mechanism comprises a rudder and a propeller, and a power supply end of the propeller is arranged in the inner cabin; and a monitoring unit is arranged on the upper end of the floating platform and used for monitoring the sea surface state. The application provides a system for monitoring the sea state of a deep-sea area, the system collects sea area information through the buoy, has no safety hidden danger for detection personnel, is suitable for a very wide sea area, and the obtained sea area information is more accurate because the buoy directly contacts the sea surface and can be deeply placed in a relatively harsh environment.

Description

Technical Field

[0001] This invention relates to the field of sea condition monitoring technology, specifically to a deep-sea condition monitoring system and buoy based on the Tiantong satellite. Background Technology

[0002] A buoy is a navigational aid that floats on the water's surface. Anchored in a designated location, it marks the extent of a navigational channel, indicates shoals, obstructions, or serves a specific purpose. Buoys are the most numerous and widely used type of navigational aid, placed in locations where it is difficult or unsuitable to establish fixed navigational markers. The function of a buoy is to mark shallow channels or obstacles that endanger navigational safety. Buoys equipped with lights are called light buoys, and those used as signal buoys in navigable waters day and night are used for navigational assistance. Some buoys are also equipped with radar transponders, radio beacons, fog warning signals, and marine survey instruments.

[0003] Compared to ocean-going vessels, buoys are much smaller in size and mass. When a ship passes near a buoy at a certain speed, the buoy will be subjected to a huge attraction and collide with the ship's hull. If water enters the buoy's interior, it will cause the buoy to tilt severely or even sink.

[0004] Sea state, also known as sea surface condition or ocean conditions, refers to the external features of the sea surface caused by wind, waves, and swells in marine hydrological observations. Current technologies for monitoring sea state typically employ survey vessels with sea state monitoring capabilities, or rely on weather forecasts of sea surface conditions in a specific area. The former method is unsuitable for monitoring deep-sea areas and poses safety hazards to personnel on the survey vessel. The latter method, however, relies solely on weather conditions to determine sea state, neglecting the influence of ocean currents such as density currents and compensation currents, resulting in lower accuracy in predicting actual wave fluctuations. Summary of the Invention

[0005] The purpose of this invention is to provide a deep-sea state monitoring system and buoy based on the Tiantong satellite, and to solve the following technical problems:

[0006] (1) How to improve the impact resistance of buoys;

[0007] (2) How to improve the safety and accuracy of sea state detection;

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] A buoy, characterized in that it comprises:

[0010] A floating platform, wherein an inner compartment and a protective compartment are provided inside the floating platform, and multiple protective compartments are horizontally distributed around the inner compartment;

[0011] A drive mechanism for controlling the movement of the floating platform includes a servo motor and a thruster, the power supply terminal of which is located in the inner compartment;

[0012] A monitoring unit, located on the upper part of the floating platform, is used to monitor the sea surface conditions;

[0013] The solar panel, the servo motor, the thruster, and the monitoring unit are all electrically connected to the solar panel.

[0014] A deep-sea state monitoring system based on the Tiantong satellite, characterized in that it includes:

[0015] Buoys are used to collect information about marine areas;

[0016] The sea condition analysis module is used to analyze and process the collected sea area information and establish a sea condition evaluation strategy for the sea area based on the analysis and processing results.

[0017] The communication module is used to send early warning signals to ships passing through the area based on the Tiantong satellite, according to the sea state assessment strategy.

[0018] As a further technical solution, the sea area information includes:

[0019] The buoy's acceleration curves in the x, y, and z axes are obtained from a triaxial accelerometer: x″(t), y″(t), and z″(t).

[0020] Based on wind direction and real-time wind speed obtained from an anemometer;

[0021] The buoy's location information is obtained based on a GPS locator.

[0022] As a further technical solution, the process of analyzing and processing the collected marine information includes:

[0023] By integrating the three smoothed acceleration curves twice with respect to time t, three curves are obtained: x(t), y(t), and z(t).

[0024] Through formula Calculate and obtain the preset time interval [t] a , t b The calm parameter f of the waves in a localized area of ​​the interior sea. calm ;

[0025] Where S is the buoy's position in the interval [t] obtained from the GPS locator. a , t b The straight-line distance between the corresponding positions of the two endpoints; Δl s This is a preset reference coefficient;

[0026] The calm parameter fcalm With preset threshold f thold Compare:

[0027] If f calm ≥f thold If so, it can be determined that the sea surface in that local area is calm;

[0028] If f calm <f thold Therefore, it is necessary to establish a sea state risk assessment strategy.

[0029] As a further technical solution, the process of analyzing and processing the collected marine information also includes:

[0030] The wind direction and the direction of buoy movement are divided into several angular intervals using the same dividing standard;

[0031] Within the preset time interval [t] a , t b Within, based on the wind direction information recorded by the anemometer, the wind direction falls within various angular intervals;

[0032] Based on the GPS locator, in the interval [t] a , t b Within this range, the angle interval between the buoy's starting position and its ending position is obtained and denoted as the ocean current direction angle interval;

[0033] The wind direction information that falls within the ocean current direction angle range is selected and analyzed. Based on the analysis results, the hazard of the waves in the sea area is assessed.

[0034] As a further technical solution, the wind direction status information recorded by the anemometer falling within various angular intervals includes:

[0035] The number of times the wind direction falls within each angular range and the duration of each angular range.

[0036] As a further technical solution, the process of analyzing wind direction information includes:

[0037] Through formula Calculate the wave hazard parameter value H wave ;

[0038] Where N is the wind direction in the interval [t] a , t b The number of times the ocean current falls within the directional angle range; Δt i For wind direction in the interval [t] a , t b The length of the time interval during which the i-th time falls within the ocean current direction angle interval, t il t ir They are time periods Δti The left and right endpoints of V; wind (t) represents the change in wind speed over time, and V wind (t)≥0; ε is a preset reference coefficient;

[0039] If the wave hazard parameter value H wave Exceeding the preset threshold H thr If the waves in the area pose a threat to safe navigation, then it is determined that the waves in that area pose a threat to safe navigation.

[0040] As a further technical solution, the process of establishing a sea state risk assessment strategy includes:

[0041] Through formula P risk =γ1*(f thold -f calm )+γ2*H wave Calculate the sea state risk parameter P for the corresponding sea area. risk ;

[0042] Wherein, γ1 and γ2 are both preset weighting coefficients;

[0043] If the sea state risk parameter P risk Exceeding the preset safety threshold P safe The communication module then sends a warning signal to ships passing through the area via the Tiantong satellite.

[0044] The beneficial effects of this invention are:

[0045] (1) This invention provides a buoy that can improve the buoy's impact resistance. Through an inner chamber and protective chambers within the buoy platform, with multiple protective chambers horizontally distributed around the inner chamber, the protective chambers provide protection when the buoy's sidewall collides with the hull. If a single protective chamber breaks due to impact, it will not affect the inner chamber or other protective chambers. Furthermore, if multiple protective chambers break, it will not significantly impact the buoy's stability. Therefore, this technology can improve the buoy's impact resistance, thereby effectively extending the buoy's service life.

[0046] (2) This invention provides a system for monitoring sea conditions in deep-sea areas. It collects sea information through buoys, which eliminates the need for manual operation and poses no safety risks to the monitoring personnel. Furthermore, the buoys are small in size and applicable to a wide range of sea areas. In addition, unlike judging sea conditions by weather, the buoys collect sea information more accurately because they are in direct contact with the sea surface and can penetrate into harsher environments. Attached Figure Description

[0047] The invention will now be further described with reference to the accompanying drawings.

[0048] Figure 1This is a schematic diagram of the overall three-dimensional structure of the buoy in this invention;

[0049] Figure 2 This is a bottom view of the buoy in this invention after partial cross-section;

[0050] Figure 3 This is a side view of the buoy in this invention after being partially cut apart;

[0051] Figure 4 This is a schematic block diagram of the deep-sea state monitoring system based on the Tiantong satellite in this invention.

[0052] Attached diagrams: 1. Floating platform; 101. Internal compartment; 102. Protective compartment; 201. Steering gear; 202. Thruster; 3. Monitoring unit; 4. Solar panel. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Please refer to the attached diagram. Figure 1 As shown, a buoy is characterized by comprising:

[0055] A floating platform 1, wherein an inner compartment 101 and a protective compartment 102 are provided inside the floating platform 1, and a plurality of the protective compartments 102 are horizontally distributed around the inner compartment 101;

[0056] A drive mechanism for controlling the movement of the floating platform 1 includes a servo motor 201 and a thruster 202, the power supply terminal of which is located in the inner compartment (101);

[0057] Monitoring unit 3 is located on the upper end of the floating platform 1 and is used to monitor the sea surface conditions;

[0058] The solar panel 4, the servo motor 201, the thruster 202 and the monitoring unit 3 are all electrically connected to the solar panel 4.

[0059] Through the above technical solution, this embodiment provides a buoy that can improve the buoy's impact resistance. Specifically, as shown in the example... Figure 2 , 3As shown, the floating platform 1 has an inner compartment 101 and a protective compartment 102, with multiple protective compartments 102 horizontally distributed around the inner compartment 101. Therefore, when the sidewall of the buoy collides with the hull, the protective compartments 102 provide protection. It should be noted that the protective compartments 102 are not connected to each other, nor are they connected to the inner compartment 101. Furthermore, the volume of the protective compartments 102 is much smaller than that of the inner compartment 101. If a single protective compartment 102 breaks due to a collision, it will not affect the inner compartment 101 or other protective compartments 102. The breaking of multiple protective compartments 102 will not significantly affect the stability of the buoy. Therefore, this technology can improve the buoy's impact resistance, thereby effectively extending its service life. In addition, the drive mechanism allows the buoy to actively perform navigation detection and facilitates buoy recovery and maintenance via methods such as remote control. The solar panels 4, due to the generally abundant sunlight on the sea surface, can continuously provide power to the drive mechanism and monitoring unit.

[0060] like Figure 4 As shown, a deep-sea state monitoring system based on the Tiantong satellite is characterized by comprising:

[0061] Buoys are used to collect information about marine areas;

[0062] The sea condition analysis module is used to analyze and process the collected sea area information and establish a sea condition evaluation strategy for the sea area based on the analysis and processing results.

[0063] The communication module is used to send early warning signals to ships passing through the area based on the Tiantong satellite, according to the sea state assessment strategy.

[0064] Through the above technical solution, this embodiment provides a system for monitoring sea conditions in deep-sea areas. By collecting sea information through buoys, it eliminates the need for manual operation, thus avoiding safety hazards for monitoring personnel. Furthermore, the small size of the buoys allows for a wide range of applicable sea areas. Unlike relying on weather conditions to determine sea conditions, the buoy-based method of collecting sea information, because the buoy is in direct contact with the sea surface and can penetrate into harsher environments, results in more accurate sea information. It should be noted that both the sea condition analysis module and the communication module can be installed either on the buoy itself or on land.

[0065] The sea area information includes:

[0066] The buoy's acceleration curves in the x, y, and z axes are obtained from a triaxial accelerometer: x″(t), y″(t), and z″(t).

[0067] Based on wind direction and real-time wind speed obtained from an anemometer;

[0068] The buoy's location information is obtained based on a GPS locator.

[0069] Through the above technical solution, this embodiment provides marine information, specifically including three acceleration curves of the buoy in the x, y, and z axes obtained by a triaxial accelerometer: x″(t), y″(t), and z″(t). These three acceleration curves can comprehensively reflect the buoy's motion state; wind direction and real-time wind speed obtained by an anemometer; and buoy position information obtained by a GPS locator. This position information can indirectly reflect the direction of ocean currents because, generally speaking, based on the relationship of friction, it is easy to know that the influence of wind direction on the buoy's motion direction is much smaller than the influence of seawater flow direction on the buoy's motion direction.

[0070] The process of analyzing and processing the collected marine information includes:

[0071] By integrating the three smoothed acceleration curves twice with respect to time t, three curves are obtained: x(t), y(t), and z(t).

[0072] Through formula Calculate and obtain the preset time interval [t] a , t b The calm parameter f of the waves in a localized area of ​​the interior sea. calm ;

[0073] Where S is the buoy's position in the interval [t] obtained from the GPS locator. a , t b The straight-line distance between the corresponding positions of the two endpoints; Δl s This is a preset reference coefficient;

[0074] The calm parameter f calm With preset threshold f thold Compare:

[0075] If f calm ≥f thold If so, it can be determined that the sea surface in that local area is calm;

[0076] If f calm <f thold Therefore, it is necessary to establish a sea state risk assessment strategy.

[0077] Through the above technical solution, this embodiment provides a process for analyzing and processing the collected marine information:

[0078] Specifically, through the formula Calculate and obtain the preset time interval [t] a , t b The calm parameter f of the waves in a localized area of ​​the interior sea. calm ; in the formula This directly reflects the length of the buoy's trajectory; therefore, it's easy to see that the longer the trajectory, the greater f. calm The smaller the value, the less calm the sea surface. Then, the calmness parameter f... calm With preset threshold f thold Compare: when f calm ≥f thold This indicates that the buoy's trajectory is short, which indirectly reflects a low wave frequency and a relatively low drop between wave crests and troughs, thus indicating that the sea surface in this local area is calm; while when f calm <f thold Similarly, this indicates that the sea surface fluctuations are large or frequent, therefore, a sea state risk assessment strategy needs to be established. It should be noted that S represents the buoy's position within the interval [t] based on GPS positioning data. a , t b The straight-line distance between the corresponding positions of the two endpoints; Δl s These are preset reference coefficients, which can be obtained through experimental fitting.

[0079] The process of analyzing and processing the collected marine information also includes:

[0080] The wind direction and the direction of buoy movement are divided into several angular intervals using the same dividing standard;

[0081] Within the preset time interval [t] a , t b Within, based on the wind direction information recorded by the anemometer, the wind direction falls within various angular intervals;

[0082] Based on the GPS locator, in the interval [t] a , t b Within this range, the angle interval between the buoy's starting position and its ending position is obtained and denoted as the ocean current direction angle interval;

[0083] The wind direction information that falls within the ocean current direction angle range is selected and analyzed. Based on the analysis results, the hazard of the waves in the sea area is assessed.

[0084] Through the above technical solution, this embodiment provides another process for analyzing and processing marine information. Specifically, firstly, the wind direction and buoy movement direction are divided into several angular intervals using the same division standard, and then within a preset time interval [t]... a , t b Within [t], wind direction status information is recorded by an anemometer falling within various angular intervals; based on a GPS locator, within the interval [t]... a , t bWithin the current direction angle interval, the angle between the buoy's starting and ending points is obtained and denoted as the ocean current direction angle interval. Finally, wind direction information falling within this interval is selected and analyzed. Based on the analysis results, the hazard level of the waves in the area is assessed. The above scheme is based on the fact that wave height is usually the primary standard for judging the degree of danger, as high waves can impact the deck at extremely high speeds, easily causing water ingress and potentially capsizing the vessel. A significant factor influencing wave height is the sea wind, especially when the sea wind and ocean current direction are aligned, which can easily generate giant waves. Therefore, the above scheme considers this important factor, focusing on detecting and analyzing wind direction and the buoy's movement direction, which reflects the ocean current direction.

[0085] The wind direction information recorded by the anemometer, falling within various angular ranges, includes:

[0086] The number of times the wind direction falls within each angular range and the duration of each angular range.

[0087] Through the above technical solution, this embodiment provides specific information on wind direction status based on wind direction recorded by an anemometer falling within various angular intervals. The longer the sea wind in the same direction as the ocean current lasts, the higher the waves it can generate. Therefore, based on this characteristic, not only is the number of times the wind direction falls within each angular interval obtained, but also the duration of the wind direction staying in the corresponding angular interval each time is recorded.

[0088] The process of analyzing wind direction information includes:

[0089] Through formula Calculate the wave hazard parameter value H wave ;

[0090] Where N is the wind direction in the interval [t] a , t b The number of times the ocean current falls within the directional angle range; Δt i For wind direction in the interval [t] a , t b The length of the time interval during which the i-th time falls within the ocean current direction angle interval, t il t ir They are time periods Δt i The left and right endpoints of V; wind (t) represents the change in wind speed over time, and V wind (t)≥0; ε is a preset reference coefficient;

[0091] If the wave hazard parameter value H wave Exceeding the preset threshold H thr If the waves in the area pose a threat to safe navigation, then it is determined that the waves in that area pose a threat to safe navigation.

[0092] Through the above technical solution, this embodiment provides a process for analyzing wind direction information, specifically, through the formula... Calculate the wave hazard parameter value H wave In this formula This reflects the average wind speed when the wind direction is in the same direction as the ocean current. Since, without considering other factors, the higher the wind speed, the higher the waves. If the wave hazard parameter value H... wave Exceeding the preset threshold H thr This indicates that the wind speed is high and the duration is long, which is in the same direction as the ocean current, and the probability of forming large waves is relatively high. Therefore, it is determined that the waves in this sea area pose a threat to safe navigation. It should be noted that N represents the wind direction in the interval [t]. a , t b The number of times the ocean current falls within the directional angle range; Δt i For wind direction in the interval [t] a , t b The length of the time interval during which the i-th time falls within the ocean current direction angle interval, t il t ir They are time periods Δt i The left and right endpoints of V; wind (t) represents the change in wind speed over time, and V wind (t)≥0, where V wind (t) is not a vector, but only represents the magnitude of the wind in a certain direction; ε is a preset reference coefficient, which can be obtained by fitting experimental data.

[0093] The process of establishing a sea state risk assessment strategy includes:

[0094] Through formula P risk =γ1*(f thold -f calm )+γ2*H wave Calculate the sea state risk parameter P for the corresponding sea area. risk ;

[0095] Wherein, γ1 and γ2 are both preset weighting coefficients;

[0096] If the sea state risk parameter P risk Exceeding the preset safety threshold P safe The communication module then sends a warning signal to ships passing through the area via the Tiantong satellite.

[0097] Through the above technical solution, this embodiment provides a process package for establishing a sea state risk assessment strategy. Specifically, it determines the degree of sea state risk by comprehensively considering sea surface fluctuations and the probability of giant waves forming, using formula P. risk =γ1*(f thold -f calm )+γ2*Hwave Calculate the sea state risk parameter P for the corresponding sea area. risk Where γ1 and γ2 are preset weighting coefficients, which can be obtained by fitting experimental data. If the sea state risk parameter P... risk Exceeding the preset safety threshold P safe The communication module then sends a warning signal to ships passing through the area via the Tiantong satellite. When the sea state risk parameter P... risk Exceeding the preset safety threshold P safe This indicates that the sea surface is fluctuating at a high frequency and with large amplitude, and is prone to forming powerful giant waves. Therefore, the communication module promptly sends early warning signals to ships passing through the area.

[0098] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A deep-sea state monitoring system based on the Tiantong satellite, characterized in that, include: Buoys are used to collect information about marine areas; The buoys include: A floating platform (1) is provided with an inner compartment (101) and a protective compartment (102) inside the floating platform (1), and a plurality of the protective compartments (102) are distributed horizontally around the inner compartment (101); A drive mechanism for controlling the movement of the floating platform (1) includes a servo motor (201) and a thruster (202), the power supply terminal of which is located in the inner compartment (101); The monitoring unit (3) is set on the upper end of the floating platform (1) and is used to monitor the sea surface conditions; The solar panel (4), the servo motor (201), the thruster (202) and the monitoring unit (3) are all electrically connected to the solar panel (4); The sea condition analysis module is used to analyze and process the collected sea area information and establish a sea condition evaluation strategy for the sea area based on the analysis and processing results. The communication module is used to send early warning signals to ships passing through the area based on the Tiantong satellite according to the sea state assessment strategy. The sea area information includes: Based on three acceleration curves of the buoy in the x, y, and z axes obtained from a triaxial accelerometer: ; Based on wind direction and real-time wind speed obtained from an anemometer; Buoy location information obtained from GPS locators; The process of analyzing and processing the collected marine information includes: By integrating the three smoothed acceleration curves twice with respect to time t, three corresponding curves are obtained: ; Through formula Calculate and obtain the preset time interval Calmness parameters of ocean waves in local inland sea areas ; Where S is the buoy's position in the interval obtained from the GPS locator. The straight-line distance between the corresponding positions of the two endpoints; This is a preset reference coefficient; Calm parameter With preset threshold Compare: like If so, it can be determined that the sea surface in that local area is calm; like Therefore, it is necessary to establish a sea state risk assessment strategy.

2. The deep-sea state monitoring system based on Tiantong satellite according to claim 1, characterized in that, The process of analyzing and processing the collected marine information also includes: The wind direction and the direction of buoy movement are divided into several angular intervals using the same dividing standard; Within the preset time range Inside, wind direction status information is recorded by an anemometer, showing the wind direction falling within various angular ranges; Based on GPS locators, in the interval Within this range, the angle interval between the buoy's starting position and its ending position is obtained and denoted as the ocean current direction angle interval. The wind direction information that falls within the ocean current direction angle range is selected and analyzed. Based on the analysis results, the hazard of the waves in the sea area is assessed.

3. A deep-sea state monitoring system based on Tiantong satellite according to claim 2, characterized in that, The wind direction information recorded by the anemometer, falling within various angular ranges, includes: The number of times the wind direction falls within each angular range and the duration of each stay within the corresponding angular range.

4. A deep-sea state monitoring system based on Tiantong satellite according to claim 3, characterized in that, The process of analyzing wind direction information includes: Through formula Calculate the wave hazard parameter values ; in, For wind direction in the range The number of times the ocean current falls within the direction angle range; For wind direction in the range The length of the time interval during which the i-th time falls within the ocean current direction angle interval. Time periods The left and right endpoints at time; This represents the change in wind speed over time, and ; This is a preset reference coefficient; If the sea wave hazard parameter value Exceeding the preset threshold If the waves in the area pose a threat to safe navigation, then it is determined that the waves in that area pose a threat to safe navigation.

5. A deep-sea state monitoring system based on Tiantong satellite according to claim 4, characterized in that, The process of establishing a sea state risk assessment strategy includes: Through formula Calculate the sea state risk parameters for the corresponding sea area. ; in, All are preset weighting coefficients; If sea state risk parameters Exceeding the preset safety threshold The communication module then sends a warning signal to ships passing through the area via the Tiantong satellite.

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