An ocean relay buoy

Abstract

The present invention discloses an ocean relay buoy, which relates to the technical field of ocean monitoring. It includes a main housing, a control system, a cable pay-out device, a buoyancy device, a position detection component and a data transmission device. An optical cable is wound around the cable pay-out device, and the cable pay-out device can realize the pay-out of the optical cable. The control system can be connected to a submersible buoy observation platform through the optical cable; the buoyancy device is arranged at the top of the main housing, and the buoyancy device is signal-connected to the control system; the position detection component is used to detect the position of the ocean relay buoy in seawater, and the position detection component is signal-connected to the control system. The control system can control the buoyancy device to turn on according to the signal detected by the position detection component; the data transmission device is signal-connected to the control system and can transmit the collected data back to the shore station. The present invention can realize the real-time transmission of data of the underwater submersible buoy observation platform, does not require the submersible buoy observation platform to float, improves the problem of low transmission rate of the underwater communication machine, and is not affected by the underwater environment.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean monitoring, and particularly to an ocean relay buoy. Background Art

[0002] Currently, in order to achieve real-time data transmission, submersible buoy observation platforms usually adopt the following strategies:

[0003] 1. Periodic surfacing: The submersible buoy observation platform is designed to automatically surface after working underwater for a period of time for data transmission;

[0004] 2. Data compression: In order to reduce the amount of data transmitted, the submersible buoy observation platform will perform compression processing on the data locally;

[0005] 3. Combining multiple communication methods, using underwater acoustic communication underwater and switching to satellite communication after reaching the water surface; among them, underwater acoustic communication is a method in which the submersible buoy uses sonar technology to transmit data to the surface buoy or other receivers, and then sends the data to the shore base station through satellite or radio waves.

[0006] However, large submersible buoy observation platforms cannot achieve the surfacing function due to their own structures. Although underwater acoustic communication can communicate underwater, the transmission rate is low and it is greatly affected by the underwater environment (such as multipath effect, noise).

[0007] Therefore, an ocean relay buoy is provided to solve the above problems existing in the prior art. Summary of the Invention

[0008] The purpose of the present invention is to provide an ocean relay buoy to solve the above problems existing in the prior art, which can achieve real-time data transmission of the underwater submersible buoy observation platform, does not require the submersible buoy observation platform to surface, improves the problem of low transmission rate of underwater communication machines, and is not affected by the underwater environment.

[0009] To achieve the above purpose, the present invention provides the following solutions:

[0010] The present invention provides an ocean relay buoy, including:

[0011] A main housing;

[0012] A control system, which is arranged inside the main housing;

[0013] A cable pay-out device, which is arranged at the bottom of the main housing, and an optical cable is wound on the cable pay-out device. The cable pay-out device can realize the pay-out of the optical cable, and the control system can be connected to the submersible buoy observation platform through the optical cable;

[0014] A buoyancy device, which is arranged at the top of the main housing, and the buoyancy device is signal-connected to the control system;

[0015] A position detection component, which is used to detect the position of the ocean relay buoy in seawater, and the position detection component is signal-connected to the control system. The control system can control the buoyancy device to turn on according to the signal detected by the position detection component;

[0016] A data transmission device, which is signal-connected to the control system and can transmit the collected data back to the shore station.

[0017] Preferably, the buoyancy device includes a gas cylinder, a gas valve and an airbag. The airbag is arranged around the outer side of the top of the main housing. The gas cylinder and the gas valve are both arranged inside the main housing. The gas cylinder is connected to the airbag through an inflation pipe, and the gas valve is arranged on the inflation pipe; in the initial state, the airbag is in a contracted state. When the position detection component detects that the ocean relay buoy rises to a specified position, the control system controls the gas valve to open to inflate the airbag.

[0018] Preferably, it further includes a plurality of damping plates, and the plurality of damping plates are evenly distributed along the circumference on the outer wall of the main housing. The bottom end of any one of the damping plates is rotatably connected to the main housing; when the airbag is in a contracted state, the plurality of damping plates are annularly wrapped outside the airbag, and the top ends of the plurality of damping plates are tightened by an elastic ring. When the airbag is inflated, it can push the damping plates to unfold.

[0019] Preferably, an opening is provided at the top of the main housing, and a protective cover is provided at the opening. The protective cover is connected with a flip device, and the flip device can drive the protective cover to open so that the data transmission device is exposed.

[0020] Preferably, an end cover is further provided at the opening. The bottom of the protective cover is hermetically connected to the end cover, and the protective cover is connected to the end cover through an elastic strap;

[0021] The flip device includes a motor, a reducer, a lead screw and a top piece. The output shaft of the motor is connected to the reducer, the output shaft of the reducer is connected to the lead screw, the lead screw is threadedly connected to the end cover, the top end of the lead screw is rotatably connected to the top piece, the top piece is located below the protective cover, and a guide rod is provided on the end cover. The motor is slidably arranged on the guide rod. The motor can drive the lead screw to rotate so that the motor moves up and down along the guide rod, and then drives the top piece to move up and down.

[0022] Preferably, the position detection component includes a pressure switch disposed on the top of the main housing. When the ocean relay buoy floats up to a certain water depth, the pressure switch is turned on, and the control system controls the buoyancy device to be activated.

[0023] It further includes a timer, which is in signal connection with the control system. When the ocean relay buoy floats up to a specified time, the control system controls the buoyancy device to be activated.

[0024] Preferably, it further includes a seawater switch disposed at the bottom of the main housing, and the seawater switch is in signal connection with the control system. When the seawater switch is in contact with air, it is in the off state, and when the seawater switch is in contact with seawater, it is in the on state, and the control system is powered on to work.

[0025] It further includes a compass disposed inside the main housing, and the compass is in signal connection with the control system. The compass can collect the azimuth and attitude data of the ocean relay buoy and transmit them to the control system.

[0026] Preferably, it further includes a power supply disposed inside the main housing for power supply.

[0027] Preferably, the data transmission device uses satellite and / or wireless communication methods to transmit data.

[0028] Preferably, a counterweight is further disposed at the bottom of the main housing.

[0029] The present invention has achieved the following technical effects compared with the prior art:

[0030] In the present invention, the ocean relay buoy can be deployed together with the submersible buoy observation platform. After the observation starts, it is released by the launching device of the submersible buoy observation platform and floats on the sea surface. The control system of the ocean relay buoy can be connected to the submersible buoy observation platform through an optical cable. The data transmission device is in signal connection with the control system and can transmit the collected data back to the shore station, realizing the real-time transmission of data of the underwater submersible buoy observation platform without the need for the submersible buoy observation platform to float up, improving the problem of the low transmission rate of the underwater communication machine and being unaffected by the underwater environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0032] Figure 1It is the block diagram of the ocean relay buoy in the embodiment of the present invention;

[0033] Figure 2 It is the working flow chart of the ocean relay buoy in the embodiment of the present invention;

[0034] Figure 3 It is the state diagram of the ocean relay buoy before standby and surfacing;

[0035] Figure 4 It is the working state diagram of the ocean relay buoy after floating to the water surface in the embodiment of the present invention;

[0036] Figure 5 It is the partial schematic diagram of the ocean relay buoy in the embodiment of the present invention;

[0037] Figure 6 It is the structural schematic diagram of the wireless transmission antenna, shield and flip device in the embodiment of the present invention.

[0038] In the figure: 1 - elastic drawband; 2 - shield; 3 - data transmission device; 4 - end cap; 5 - top sheet; 6 - lead screw; 7 - pressure switch; 8 - coupling; 9 - reducer; 10 - motor; 11 - air valve; 12 - motor mounting plate; 13 - airbag; 14 - damping plate; 15 - damping plate seat; 16 - gas cylinder; 17 - main housing; 18 - guide rod; 19 - instrument mounting rack; 20 - compass; 21 - acquisition circuit; 22 - control circuit; 23 - battery; 24 - optoelectronic drive; 25 - optical cable; 26 - base; 27 - seawater switch; 28 - counterweight. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] The purpose of the present invention is to provide an ocean relay buoy to solve the problems existing in the above-mentioned prior art, which can realize the real-time transmission of data of the underwater mooring buoy observation platform, does not require the underwater mooring buoy observation platform to surface, improves the problem of low transmission rate of the underwater communication machine, and is not affected by the underwater environment.

[0041] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0042] Embodiment 1

[0043] As Figures 1-6As shown in the figure, in this embodiment, an ocean relay buoy is provided, which mainly includes a main housing 17, a control system, a cable pay-out device, a buoyancy device, a position detection component, and a data transmission device 3. Among them, the control system is arranged inside the main housing 17; the cable pay-out device is arranged at the bottom of the main housing 17, and an optical cable 25 is wound on the cable pay-out device. The cable pay-out device can pay out the optical cable 25, and the control system can be connected to the submersible buoy observation platform through the optical cable 25; the buoyancy device is arranged at the top of the main housing 17, and the buoyancy device is signal-connected to the control system; the position detection component is used to detect the position of the ocean relay buoy in seawater, and the position detection component is signal-connected to the control system. The control system can control the buoyancy device to turn on according to the signal detected by the position detection component; the data transmission device 3 is signal-connected to the control system and can transmit the collected data back to the shore station.

[0044] In this embodiment, the ocean relay buoy can be deployed together with the submersible buoy observation platform. After the observation starts, it is launched by the launching device of the submersible buoy observation platform and floats on the sea surface. The control system of the ocean relay buoy can be connected to the submersible buoy observation platform through the optical cable 25. The data transmission device 3 is signal-connected to the control system and can transmit the collected data back to the shore station, realizing the real-time transmission of data of the underwater submersible buoy observation platform, without the need for the submersible buoy observation platform to float to the surface, improving the problem of the low transmission rate of the underwater communication machine and being not affected by the underwater environment. Moreover, a buoyancy device is provided, enabling the ocean relay buoy to float on the water surface, improving the wave-following characteristics of the ocean relay buoy and enabling it to have more effective working hours under larger sea conditions.

[0045] In this embodiment, the main housing 17 is a sealed pressure-resistant housing. After a pressure test of 3 MPa, there is no deformation or leakage. An accommodation chamber is arranged inside it, and the control system, the cable pay-out device, the data transmission device 3, etc. are all arranged in the accommodation chamber.

[0046] In this embodiment, the cable pay-out device can be selected according to specific working requirements. For example, it can be a cable pay-out reel, on which an optical cable 25 is wound. During the upward floating and floating on the water surface of the ocean relay buoy, the optical cable 25 stored inside the main housing 17 is gradually paid out under the action of the buoyancy and water resistance of the ocean relay buoy, and transmits the data of the underwater submersible buoy observation platform to the data transmission device 3. Among them, the pulling force required for cable pay-out is less than 100 g to ensure that it does not generate too much resistance to the upward floating of the ocean relay buoy.

[0047] In this embodiment, the buoyancy device mainly includes a gas cylinder 16, a gas valve 11 and an airbag 13. The airbag 13 is disposed around the outer side of the top of the main housing 17. The gas cylinder 16 and the gas valve 11 are both disposed within the main housing 17. The gas cylinder 16 is connected to the airbag 13 through an inflation tube, and the gas valve 11 is disposed on the inflation tube. In the initial state, the airbag 13 is in a contracted state. When the position detection component detects that the ocean relay buoy has risen to a specified position, the control system controls the gas valve 11 to open to inflate the airbag 13.

[0048] In this embodiment, the material of the airbag 13 is selected as a plastic that is relatively soft, easy to fold, and can withstand a certain pressure.

[0049] In this embodiment, an airbag 13 is disposed at a position near the top of the ocean relay buoy, so that the state of the ocean relay buoy on the water surface can better meet the requirements of the detection work, that is, it can maintain a better posture under relatively harsh sea conditions and can conduct detection work more effectively.

[0050] In this embodiment, the airbag 13 also mainly plays the following several roles:

[0051] (1) It improves the wave-following characteristics of the ocean relay buoy and can have more effective working hours under larger sea conditions;

[0052] (2) It helps to improve the distribution of the center of gravity and the center of buoyancy of the ocean relay buoy and enhances its ability to maintain a balanced posture;

[0053] (3) It can play a role in protecting electronic components such as the data transmission device 3 (such as the role of preventing water splashing).

[0054] In this embodiment, according to the working process of the ocean relay buoy, when it rises to about 1 - 2 m from the water surface, the airbag 13 is deployed. At this time, the external pressure of the airbag 13 is about 1 Bar. According to this condition, after calculation, the main technical parameters of the buoyancy device are determined as follows:

[0055] Volume of the airbag 13: 4 L (liter, a unit of capacity);

[0056] Volume of the gas cylinder 16: 0.8 L;

[0057] Pressure of the compressed gas: 6.5 - 7 Bar (bar, a unit of pressure);

[0058] Adopting the above parameters can ensure that the airbag 13 overcomes the external pressure and is deployed normally.

[0059] In this embodiment, it further includes a plurality of damping plates 14. The plurality of damping plates 14 are evenly distributed along the circumference on the outer wall of the main housing 17. The bottom end of any one of the damping plates 14 is rotatably connected to the main housing 17. Specifically, a damping plate seat 15 is provided on the main housing 17, and the bottom of the damping plate 14 is rotatably connected to the corresponding damping plate seat 15 through a rotating shaft. When the airbag 13 is in a contracted state, the plurality of damping plates 14 are annularly wrapped around the outside of the airbag 13, and the tops of the plurality of damping plates 14 are tightened by an elastic ring. When the airbag 13 is inflated, it can push the damping plate 14 to unfold. When the airbag 13 is inflated to push the damping plate 14, the elastic ring generates elastic deformation. Finally, the damping plate 14 disengages from the elastic ring and unfolds along the rotating shaft under the thrust of the airbag 13. When the damping plate 14 unfolds to the horizontal position, it abuts against the outer wall of the main housing 17, and at the same time, the inflated airbag 13 presses it down. In this way, the damping plate 14 is limited in position in the upper and lower directions, so that it cannot shake up and down randomly. Among them, the elastic ring can be selected according to specific working needs. For example, a rubber ring can be selected.

[0060] As a preferred embodiment, a total of 8 damping plates 14 are provided in this embodiment. After the 8 damping plates 14 are folded up, they form a cylindrical shape and are located at the upper part of the ocean relay buoy. Each damping plate 14 is designed as a long and narrow thin sheet with a curvature and can match the airbag 13.

[0061] In this embodiment, the damping plate 14 is provided. During the rising stage of the ocean relay buoy, after the damping plate 14 is opened, the water resistance it receives is increased, which can slow down the rising speed and also improve the wave-following characteristics of the ocean relay buoy. Moreover, the damping plate 14 can protect the airbag 13 wrapped therein before it is opened.

[0062] Furthermore, in this embodiment, a counterweight 28 is also provided at the bottom of the main housing 17. By using the counterweight 28 and the airbag 13, the distribution of the center of gravity and the center of buoyancy of the ocean relay buoy can be effectively improved.

[0063] In this embodiment, when the ocean relay buoy is in the state before launch, its total length is 1200 mm and its maximum diameter is 118 mm. When the airbag 13 is inflated and the damping plate 14 is unfolded, the maximum diameter is 500 mm, and the length of the part exposed above the water surface is about 210 mm. The water line is located at the midline of the airbag 13. The total weight of the ocean relay buoy is about 11.2 kg, the buoyancy in water is about 12 kg, and the net buoyancy is about 0.8 kg. When the ocean relay buoy is in the state before launch, the center of gravity and the center of buoyancy are located on the central axis at distances of 601.5 mm and 634.5 mm from the bottom respectively. The position relationship between the center of gravity and the center of buoyancy ensures that the ocean relay buoy is in an upright state when it floats in water after launch.

[0064] In this embodiment, an opening is provided at the top of the main housing 17, and a protective cover 2 is provided at the opening. The protective cover 2 is connected to a flip device, and the flip device can drive the protective cover 2 to open, so that the data transmission device 3 is exposed. Among them, it should be noted that the data transmission device 3 includes a satellite transmission antenna and / or a wireless transmission antenna, and can transmit data by satellite and / or wireless communication methods. Specifically, when the ocean relay buoy floats to the water surface and the distance from the offshore station is relatively close, wireless communication is used. When the distance from the offshore station is relatively far, satellite communication is used to ensure the real-time and integrity of data transmission.

[0065] The above-mentioned data transmission device 3 is the main working device of the ocean relay buoy, but it does not have the pressure resistance and sealing conditions by itself. Therefore, when the ocean relay buoy is rising after being launched, the protective cover 2 is closed, forming a pressure-resistant and sealed cavity with the main housing 17 to protect the data transmission device 3. When the ocean relay buoy floats to the water surface for measurement work, the flip device drives the protective cover 2 to open, so that the data transmission device 3 is exposed, that is, in an unobstructed state, which is convenient for data transmission.

[0066] In this embodiment, an end cover 4 is also provided at the opening. The bottom of the protective cover 2 is hermetically connected to the end cover 4 to form a pressure-resistant and sealed structure. The sealing form is a radial O-ring seal. And the protective cover 2 is connected to the end cover 4 through an elastic strap 1. One end of the elastic strap 1 hooks the end cover 4, and the other end hooks the protective cover 2.

[0067] The flip device mainly includes a motor 10, a reducer 9, a lead screw 6 and a top piece 5. The output shaft of the motor 10 is connected to the reducer 9. The output shaft of the reducer 9 is connected to the lead screw 6 through a coupling 8. The lead screw 6 is threadedly connected to a nut provided on the end cover 4. The top of the lead screw 6 is rotatably connected to the top piece 5. The top piece 5 is located below the protective cover 2. And a guide rod 18 is provided on the end cover 4. The motor 10 is fixed on a motor mounting plate 12. The motor mounting plate 12 is slidably arranged on the guide rod 18. The motor 10 can drive the lead screw 6 to rotate, so that the motor 10 moves up and down along the guide rod 18, and then drives the top piece 5 to move up and down, which is convenient to open the protective cover 2.

[0068] The specific working process of the flip device in this embodiment is as follows:

[0069] 1) When the ocean relay buoy floats to the water surface, control the motor 10 to rotate. After deceleration, it is jacked up under the action of the nut fixed on the end cover 4. At this time, the guide rod 18 restricts the rotation of the motor 10 to ensure that the output shaft can provide torque for the coupling 8;

[0070] 2) Driven by the lead screw 6, the top sheet 5 jacks up the shield 2 by a certain distance (about 6 mm), disconnecting its sealed connection part from the end cover 4;

[0071] 3) The elastic strap 1 flips open the shield 2 and disengages it from the ocean relay buoy.

[0072] In this embodiment, the position detection component includes a pressure switch 7. The pressure switch 7 is arranged at the top of the main housing 17. When the ocean relay buoy is below a certain water depth, the pressure switch 7 is in the off state. When the ocean relay buoy floats up to a certain water depth (about 1 - 2 m from the water surface) or to the water surface, the pressure switch 7 is turned on, and the control system controls the buoyancy device to be activated. The signal of the pressure switch 7 provides a basis for the control system to judge the state of the ocean relay buoy;

[0073] Furthermore, it also includes a timer. The timer is signal - connected to the control system. When the ocean relay buoy floats up to the specified time, the control system controls the buoyancy device to be activated; the setting of the timer is to provide an alternative control means in case the pressure switch 7 fails accidentally, and its timing time is adjustable.

[0074] In this embodiment, a base 26 is arranged at the bottom of the main housing 17. A seawater switch 27 is arranged on the base 26, and the seawater switch 27 is signal - connected to the control system. When the seawater switch 27 is in contact with air, it is in the off state. When the seawater switch 27 is in contact with seawater, it is in the on state, and the control system is powered on to work. The signal of the seawater switch 27 also provides a basis for the control system to judge the state of the ocean relay buoy.

[0075] In this embodiment, it also includes a compass 20. The compass 20 is arranged inside the main housing 17, and the compass 20 is signal - connected to the control system. The compass 20 can collect the azimuth and attitude data of the ocean relay buoy and transmit them to the control system.

[0076] In this embodiment, the control system mainly includes a control circuit 22 and a collection circuit 21. The control circuit 22 is connected to the seawater switch 27, the pressure switch 7, the collection circuit 21, the buoyancy device, the flip - cover device, etc. The control circuit 22 controls the collection circuit 21 and each mechanical execution device (such as the buoyancy device and the flip - cover device) to perform actions according to the preset working process according to the signals provided by the pressure switch 7 and the seawater switch 27; the collection circuit 21 is connected to the compass 20, the data transmission device 3, etc., and is also connected to the optical cable 25 through the optoelectronic drive 24 to perform data collection, processing and transmission control.

[0077] In this embodiment, an instrument mounting frame 19 is further provided in the main housing 17 , and the compass 20 , the acquisition circuit 21 and the control circuit 22 are all mounted on the instrument mounting frame 19 .

[0078] In this embodiment, a power supply is also included, which is arranged in the main shell 17 for power supply; specifically, the power supply is composed of 8 batteries 23 connected in series and parallel according to power demand, with a supply voltage of 12VDC, which supplies power to the control circuit 22, the acquisition circuit 21, the photoelectric drive 24 and the mechanical actuator.

[0079] The ocean relay buoy forms a mission cycle from launch to abandonment after completing the measurement mission. During this process, the ocean relay buoy performs a series of tasks such as measurement, data transmission, and structural state change according to the designed workflow. The whole process is as follows:

[0080] 1) The ocean relay buoy is in a sealed cabin of the launch device before launch and has no contact with seawater;

[0081] 2) the ocean relay buoy is launched;

[0082] 3) The ocean relay buoy is in an upright state and floats upward. During the floating process, the pay-out device allows the optical cable 25 to be continuously paid out and unfolded under very small pulling force;

[0083] 4) The seawater switch 27 is in contact with the seawater and is turned on;

[0084] 5) The control system is powered on and the data is transmitted back;

[0085] 6) Timer starts;

[0086] 7) When the ocean relay buoy floats up to a certain depth, the pressure switch 7 is turned on;

[0087] 8) When the pressure switch 7 is turned on or the timing time is reached, the high-pressure gas in the gas cylinder 16 is controlled to fill the airbag 13, so that the airbag 13 is deployed, and the damping plate 14 is opened at the same time, and the floating speed of the standard body is slowed down;

[0088] 9) The ocean relay buoy floats to the surface of the water and floats. At this time, the top of the ocean relay buoy is exposed above the water surface. The motor 10 of the flip cover device drives the top sheet 5 to lift the shield 2 to a certain height, and then the elastic drawstring 1 flips the shield 2 and separates it from the ocean relay buoy;

[0089] 10) When the optical cable 25 reaches the limit length and breaks, the transmission stops;

[0090] 11) Complete all tasks.

[0091] The design requirements of the ocean relay buoy described in this embodiment are as follows:

[0092] The ocean relay buoy is designed as a columnar structure. In its initial state, its external dimensions are 118 mm (diameter) × 1200 mm (length).

[0093] It can withstand an underwater static pressure of 300 meters and can store for 92 days.

[0094] The ocean relay buoy maintains positive buoyancy, and the reasonable buoyancy range is determined by hydrodynamic simulation calculation.

[0095] The maximum tolerable attitude of the ocean relay buoy in the floating state on the water surface is: 10 degrees of sway.

[0096] The working condition requirements of the ocean relay buoy in this embodiment are as follows:

[0097] Working sea conditions: level 3 or below;

[0098] Maximum wind speed: 10 kn (kn: nautical miles per hour);

[0099] Wave period: 9 - 20 s (s: seconds);

[0100] The maximum speed of the ocean relay buoy when released is: 12 kn;

[0101] Maximum sea current speed: 6 kn;

[0102] The release depth of the ocean relay buoy is: 10 - 300 m (m: meters);

[0103] The speed of the ocean relay buoy when it exits the launch tube is: 2 m / s (m / s: meters per second);

[0104] The launch method is: in the underwater vertical or approximately vertical direction to the water surface, launch in the direction of the water surface;

[0105] The cable release force of the ocean relay buoy and the optical cable 25 is less than 100 N (N: Newton). The cable release method adopts simultaneous two-way cable release of the ocean relay buoy and the underwater submersible observation platform. The weight of the optical cable 25 and the cable release device carried in the ocean relay buoy is not greater than 0.5 kg, the diameter is not greater than the inner diameter of the ocean relay buoy, which is 100 mm, and the length is not greater than 100 mm;

[0106] The impact load during the launch of the ocean relay buoy is not greater than 10 N.

[0107] In the present invention, specific examples are used to illustrate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on the present invention.

Claims

1. An ocean relay buoy, characterized in that: Comprising: Main housing; Control system, which is arranged inside the main housing; Cable pay-off device, which is arranged at the bottom of the main housing, and an optical cable is wound around the cable pay-off device. The cable pay-off device can realize the pay-off of the optical cable, and the control system can be connected to the subsea mooring observation platform through the optical cable; Buoyancy device, which is arranged at the top of the main housing, and the buoyancy device is signal-connected to the control system; Position detection component, which is used to detect the position of the ocean relay buoy in seawater, and the position detection component is signal-connected to the control system. The control system can control the buoyancy device to be turned on according to the signal detected by the position detection component; Data transmission device, which is signal-connected to the control system and can transmit the collected data back to the shore station; The buoyancy device includes a gas cylinder, a gas valve and an airbag. The airbag is arranged around the outside of the top of the main housing. The gas cylinder and the gas valve are both arranged inside the main housing. The gas cylinder is connected to the airbag through an inflation pipe, and the gas valve is arranged on the inflation pipe; In the initial state, the airbag is in a contracted state. When the position detection component detects that the ocean relay buoy rises to a specified position, the control system controls the gas valve to open to inflate the airbag; It also includes a plurality of damping plates, and the plurality of damping plates are evenly distributed along the circumference on the outer wall of the main housing. The bottom end of any one of the damping plates is rotatably connected to the main housing; When the airbag is in a contracted state, the plurality of damping plates are annularly wrapped outside the airbag, and the top ends of the plurality of damping plates are tightened by an elastic ring. When the airbag is inflated, it can push the damping plates to unfold.

2. The ocean relay buoy according to claim 1, wherein: An opening is arranged at the top of the main housing, and a protective cover is arranged at the opening. The protective cover is connected with a flip device, and the flip device can drive the protective cover to open so that the data transmission device is exposed.

3. The ocean relay buoy according to claim 2, wherein: An end cover is also arranged at the opening. The bottom of the protective cover is hermetically connected to the end cover, and the protective cover is connected to the end cover through an elastic strap; The flip device includes a motor, a reducer, a lead screw and a top piece. The output shaft of the motor is connected to the reducer, the output shaft of the reducer is connected to the lead screw, the lead screw is threadedly connected to the end cover, the top end of the lead screw is rotatably connected to the top piece, the top piece is located below the protective cover, and a guide rod is arranged on the end cover. The motor is slidably arranged on the guide rod. The motor can drive the lead screw to rotate so that the motor moves up and down along the guide rod, and then drives the top piece to move up and down.

4. The ocean relay buoy according to claim 1, characterized in that: The position detection component includes a pressure switch, and the pressure switch is arranged at the top of the main housing. When the ocean relay buoy floats up to a certain water depth, the pressure switch is turned on, and the control system controls the buoyancy device to be turned on; It also includes a timer, and the timer is signal-connected to the control system. When the ocean relay buoy floats up to a specified time, the control system controls the buoyancy device to be turned on.

5. The ocean relay buoy according to claim 4, characterized in that: It further includes a seawater switch which is arranged at the bottom of the main housing, and the seawater switch is in signal connection with the control system. When the seawater switch contacts air, it is in the off state, and when the seawater switch contacts seawater, it is in the on state, and the control system is powered on to work; It further includes a compass which is arranged in the main housing, and the compass is in signal connection with the control system. The compass can collect the azimuth and attitude data of the ocean relay buoy and transmit them to the control system.

6. The ocean relay buoy according to claim 1, wherein: It further includes a power supply which is arranged in the main housing and is used for power supply.

7. The ocean relay buoy according to claim 1, characterized in that: The data transmission device transmits data by satellite and / or wireless communication means.

8. The ocean relay buoy according to claim 1, wherein: A counterweight is further arranged at the bottom of the main housing.

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