Pull-type water surface and underwater cross-medium long-distance ocean monitoring system and pull-type monitoring method

Abstract

The invention relates to a towed water surface and underwater cross-medium long-distance ocean monitoring system and towed monitoring method.The towed water surface and underwater cross-medium long-distance ocean monitoring system comprises a water surface ship and an underwater monitoring device towed and driven by the water surface ship, the underwater monitoring device comprises a pressure-resistant shell and a detection ball, the pressure-resistant shell and the detection ball are used for detecting the water area environment, and the pressure-resistant shell and the detection ball are in a dynamic balance state; an optical cable winch is arranged on the water surface ship, and a dragging optical cable used for being connected with the pressure-resistant shell is wound on the optical cable winch. The device has the underwater system attitude self-balance adjusting capability, and the pressure-resistant shell is located below the front portion of the detection ball during working to provide downward dragging force for the detection ball; the detection ball can provide upward buoyancy for the pressure-resistant shell, the detection ball and the pressure-resistant shell form dynamic balance underwater, and the posture is kept stable in the dragging process. And multi-point monitoring can be carried out simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater ocean monitoring platforms, and in particular to a towed surface and underwater cross-medium long-distance ocean monitoring system and a towing monitoring method. Background Art

[0002] Underwater ocean monitoring is generally used to monitor water quality, physical parameters, biodiversity, pollution, disasters, etc., and technical means mostly use shore-based station observations, buoy and submerged buoy observations, ship observations, etc.

[0003] At present, among these existing technologies, the number of monitoring systems that can be applied to long-distance monitoring across the surface and underwater media is small, the operability is not strong, and it is difficult to meet the expected detection requirements. Summary of the invention

[0004] In view of the shortcomings in the above-mentioned existing production technology, the applicant provides a rationally structured towed surface and underwater cross-medium long-distance ocean monitoring system and a towing monitoring method, in which the monitoring position can be towed and moved in the monitoring area, and the self-balancing state can be reported during the towing and monitoring process, while realizing multi-point monitoring.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A towed surface and underwater cross-medium long-distance ocean monitoring system includes a surface ship and an underwater monitoring device towed by the surface ship.

[0007] The underwater monitoring device includes a pressure-resistant shell and a detection ball for detecting the water environment. The pressure-resistant shell and the detection ball are in a dynamic equilibrium state.

[0008] The surface vessel is provided with an optical cable winch, which reels in a towing optical cable for connecting to the pressure hull.

[0009] As a further improvement of the above technical solution:

[0010] The pressure-resistant shell is provided with a battery, an information collection module and a photoelectric conversion module.

[0011] The pressure hull and the detection ball are connected by a watertight cable, and the information acquisition module inside the pressure hull collects and receives data on the waters where the pressure hull and the detection ball are located.

[0012] A water accumulation hole is formed at the center of the bottom of the pressure hull, and a water leakage net for collecting water is arranged at the mouth of the water accumulation hole.

[0013] A load-bearing connector is installed at the top of the pressure hull, and the load-bearing connector bears at least two external forces of the drag force from the surface ship, the buoyancy of the detection ball, and the downward pull of the pressure hull.

[0014] The underwater positions of the pressure hull and the detection ball remain constant.

[0015] A method for ocean monitoring using a towed surface and underwater cross-medium long-distance ocean monitoring system. During a single monitoring process, the pressure hull presents negative buoyancy and the detection ball presents positive buoyancy, forming an underwater monitoring device with a stable relative position underwater to monitor the ocean data of the waters where the pressure hull and the detection ball are located.

[0016] During the towing process, the load-bearing connector on the top of the pressure hull bears the towing force of the towing optical cable, the buoyancy of the detection ball, and the downward pulling force of the pressure hull. The pressure hull exhibits negative buoyancy and the detection ball exhibits positive buoyancy, forming an underwater monitoring device with a stable relative position underwater.

[0017] As a further improvement of the above technical solution:

[0018] In the monitoring working state, there is a distance difference between the pressure hull and the detection ball in both the horizontal and vertical directions.

[0019] The information collection module collects water area data at multiple points simultaneously.

[0020] The detection ball transmits the collected data to the pressure hull through a watertight cable for data packaging. The photoelectric conversion module converts all the data into optical signals, which are then transmitted back to the surface ship through the towing optical cable.

[0021] The beneficial effects of the present invention are as follows:

[0022] The present invention has the ability to self-balance and adjust the attitude of the underwater system. The pressure-resistant shell presents negative buoyancy in the water, and the detection ball presents slightly positive buoyancy in the water. When working, the pressure-resistant shell is located in front and below the detection ball, providing downward drag for the detection ball; the detection ball can provide upward buoyancy for the pressure-resistant shell, and the two form a dynamic balance underwater to maintain a stable attitude during towing.

[0023] The information collection module of the present invention can perform multi-point monitoring simultaneously.

[0024] Equipped with a tugboat, the tugboat is able to tow the pressure hull to achieve the movable purpose of the ocean monitoring position.

[0025] The internal structural design of the underwater device of the pressure hull utilizes water accumulation holes to collect condensed water inside the pressure hull, preventing the information collection module from causing false alarms due to water leakage, causing the system to emergency float and interrupt work; at the same time, the condensed water plays a certain counterweight role, helping to ensure that the pressure hull is always in a negative buoyancy state and maintains a dynamic balance with the buoyancy of the detection ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the state of the monitoring system of the present invention when used in water areas.

[0027] Figure 2It is a schematic diagram of the pressure-resistant shell and the structure inside the shell of the present invention.

[0028] Figure 3 It is a schematic diagram of the structure of a water leakage net arranged at the bottom of the pressure hull of the present invention.

[0029] Among them: 1. Surface vessel; 2. Optical cable winch; 3. Towing optical cable; 4. Pressure-resistant hull; 5. Leakage net; 6. Water collection hole; 7. Battery; 8. Information collection module; 9. Photoelectric conversion module; 10. Load-bearing connector; 11. Watertight cable; 12. Detection ball. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0031] like Figure 1-Figure 3 As shown, the towed surface and underwater cross-medium long-distance ocean monitoring system of this embodiment includes a surface ship 1, an underwater monitoring device towed by the surface ship 1,

[0032] The underwater monitoring device includes a pressure-resistant shell 4 and a detection ball 12 for detecting the water environment. The pressure-resistant shell 4 and the detection ball 12 are in a dynamic equilibrium state.

[0033] The surface vessel 1 is provided with an optical cable winch 2 , and the optical cable winch 2 reels in a towing optical cable 3 for connecting to a pressure-resistant shell 4 .

[0034] A battery 7 , an information collection module 8 and a photoelectric conversion module 9 are arranged in the pressure-resistant shell 4 .

[0035] The pressure hull 4 and the detection ball 12 are connected via a watertight cable 11 , and the information acquisition module 8 in the pressure hull 4 collects and receives data on the waters where the pressure hull 4 and the detection ball 12 are located.

[0036] A water collection hole 6 is formed at the center of the bottom of the pressure-resistant shell 4, and a water leakage net 5 for collecting water is arranged at the mouth of the water collection hole 6.

[0037] A load-bearing connector 10 is installed at the top of the pressure hull 4 , and the load-bearing connector 10 bears at least two external forces of the drag force from the surface ship 1 , the buoyancy of the detection ball 12 , and the downward pull of the pressure hull 4 .

[0038] The underwater positions of the pressure hull 4 and the detection ball 12 remain constant.

[0039] In the method of using a towed surface underwater cross-medium long-distance ocean monitoring system for ocean monitoring in this embodiment, during a single monitoring process, the pressure hull 4 presents negative buoyancy and the detection ball 12 presents positive buoyancy, forming an underwater monitoring device with a relatively stable underwater position, and monitoring the ocean data of the waters where the pressure hull 4 and the detection ball 12 are located.

[0040] During the towing process, the load-bearing connector 10 on the top of the pressure shell 4 bears the towing force of the towing optical cable 3, the buoyancy of the detection ball 12, and the downward pulling force of the pressure shell 4. The pressure shell 4 presents negative buoyancy and the detection ball 12 presents positive buoyancy, forming an underwater monitoring device with a stable relative position underwater.

[0041] In the monitoring working state, there is a distance difference between the pressure-resistant shell 4 and the detection ball 12 in both the horizontal direction and the vertical direction.

[0042] The information collection module 8 collects water area data at multiple points simultaneously.

[0043] The detection ball 12 transmits the collected data to the pressure hull 4 through the watertight cable 11 for data packaging, and the photoelectric conversion module 9 converts all the data into optical signals, which are transmitted back to the surface ship 1 through the towing optical cable 3.

[0044] The overall structure and working principle of the present invention are as follows:

[0045] like Figure 1 As shown, it includes a surface ship 1, which provides forward power for the underwater device and plays a towing role. An optical cable winch 2 is installed on the surface ship 1, and a towing optical cable 3 is wound on the optical cable winch 2. The towing optical cable 3 adopts a steel wire armored optical cable, and the retracting and releasing operation is realized by the optical cable winch 2 located on the stern deck.

[0046] One end of the towing optical cable 3 extending out of the optical cable winch 2 extends into the water and is connected to a pressure-resistant shell 4. A watertight cable 11 is connected to the pressure-resistant shell 4, and the watertight cable 11 is connected to a detection ball 12, which is a floating ball with buoyancy for sensing the surrounding environment.

[0047] The pressure-resistant shell 4 and the towing optical cable 3 are connected by a load-bearing connector 10, which can be an existing component such as an angle connector, a hook connector, a cross connector, etc. The load-bearing connector 10 bears the towing force of the towing optical cable 3 and the buoyancy of the detection ball 12.

[0048] like Figure 2 As shown, the pressure hull 4 is a device shell for monitoring, and a battery 7, an information acquisition module 8, and a photoelectric conversion module 9 are installed in the pressure hull 4. These modules are used to collect ocean data in the sea area. The information acquisition module 8 is used to collect ocean data in the waters where the pressure hull 4 and the detection ball 12 are located, and can collect data at multiple points at the same time. The detection ball 12 transmits the collected data to the pressure hull 4 for data packaging. The photoelectric conversion module 9 converts all ocean data into optical signals, which are uploaded to the surface ship 1 for processing through the towing optical cable 3. Optical fiber signal transmission can prevent distortion of long-distance signal transmission.

[0049] like Figure 3As shown, a water accumulation hole 6 is formed at the bottom of the pressure-resistant shell 4, and a water leakage net 5 is arranged between the water accumulation hole 6 and the bottom of the pressure-resistant shell 4. The function of the water leakage net 5 is to collect the condensed water inside the pressure-resistant shell 4 into the water accumulation hole 6, so as to prevent the water leakage monitoring of the information collection module 8 from causing the system to float up in an emergency and interrupt the work due to the false alarm of the condensed water. At the same time, since the condensed water is collected at the bottom center of the pressure-resistant shell 4, it can play a certain role in maintaining the center of gravity.

[0050] The pressure hull 4 presents negative buoyancy in water, and the detection ball 12 presents slightly positive buoyancy in water, and the two are connected by a watertight cable 11. When working, the pressure hull 4 is located in front of and below the detection ball 12, and the pressure hull 4 provides downward drag for the detection ball 12, and the detection ball 12 provides upward buoyancy for the pressure hull 4, and the two form a dynamic balance underwater.

[0051] Since the positive buoyancy of the detection ball 12 is less than the negative buoyancy of the pressure hull 4, the pressure hull 4 must be located obliquely below the detection ball 12. During the dragging process, there is still a distance difference between the two on the horizontal plane. In theory, the detection range of the detection ball 12 is a circle with the pressure hull 4 as the center and the length of the watertight cable as the radius.

[0052] The biggest advantage of the present invention is that during the monitoring process, the pressure-resistant shell 4 and the detection ball 12 can maintain a stable dynamic balance. When towing, the load-bearing connector 10 at the top of the pressure-resistant shell 4 simultaneously bears the towing force of the towing optical cable 3, the buoyancy tension of the detection ball 12, and the sinking tension of the pressure-resistant shell 4; in the non-towing working state, theoretically, it is subjected to the buoyancy tension of the detection ball 12 and the sinking tension of the pressure-resistant shell 4. Under the premise that the pressure-resistant shell 4 must be located obliquely below the detection ball 12, the present invention can measure the information in the corresponding water area from the detection ball 12 to the pressure-resistant shell 4 body at a vertical height; under the premise of ensuring dynamic balance, it can accurately detect ocean information at a specified depth.

[0053] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A towed surface and underwater cross-medium long-distance ocean monitoring system, characterized in that: It comprises a surface ship (1) and an underwater monitoring device towed by the surface ship (1). The underwater monitoring device comprises a pressure-resistant shell (4) and a detection ball (12) for detecting a water environment. The pressure-resistant shell (4) and the detection ball (12) are in a dynamic equilibrium state. The surface ship (1) is provided with an optical cable winch (2), and the optical cable winch (2) reels in a towing optical cable (3) for connecting to a pressure-resistant shell (4).

2. The towed surface and underwater cross-medium long-distance ocean monitoring system according to claim 1 is characterized in that: A battery (7), an information collection module (8) and a photoelectric conversion module (9) are arranged in the pressure-resistant shell (4).

3. The towed surface and underwater cross-medium long-distance ocean monitoring system according to claim 1 is characterized in that: The pressure-resistant shell (4) and the detection ball (12) are connected via a watertight cable (11), and the information acquisition module (8) in the pressure-resistant shell (4) collects and receives data of the water area where the pressure-resistant shell (4) and the detection ball (12) are located.

4. The towed surface and underwater cross-medium long-distance ocean monitoring system according to claim 1 is characterized in that: A water accumulation hole (6) is formed at the center of the bottom of the pressure-resistant shell (4), and a water leakage net (5) for collecting water is arranged at the mouth of the water accumulation hole (6).

5. The towed surface and underwater cross-medium long-distance ocean monitoring system according to claim 1 is characterized in that: A load-bearing connector (10) is installed at the top of the pressure hull (4), and the load-bearing connector (10) bears at least two external forces from the drag force of the surface ship (1), the buoyancy of the detection ball (12), and the downward pulling force of the pressure hull (4).

6. The towed surface and underwater cross-medium long-distance ocean monitoring system according to claim 1 is characterized in that: The underwater positions of the pressure-resistant shell (4) and the detection ball (12) are kept constant.

7. A method for ocean monitoring using the towed surface and underwater cross-medium long-distance ocean monitoring system according to claim 1, characterized in that: During a single monitoring process, the pressure hull (4) exhibits negative buoyancy and the detection ball (12) exhibits positive buoyancy, forming an underwater monitoring device with a stable relative position underwater, and monitoring the ocean data of the waters where the pressure hull (4) and the detection ball (12) are located. During the towing process, the load-bearing connector (10) on the top of the pressure-resistant shell (4) bears the towing force of the towing optical cable (3), the buoyancy of the detection ball (12), and the downward pulling force of the pressure-resistant shell (4). The pressure-resistant shell (4) exhibits negative buoyancy and the detection ball (12) exhibits positive buoyancy, thereby forming an underwater monitoring device with a stable relative position underwater.

8. The method for performing ocean monitoring according to claim 7, characterized in that: In the monitoring working state, there is a distance difference between the pressure-resistant shell (4) and the detection ball (12) in both the horizontal direction and the vertical direction.

9. The method for performing ocean monitoring according to claim 7, characterized in that: The information collection module (8) collects water area data at multiple points simultaneously. The detection ball (12) transmits the collected data to the pressure-resistant shell (4) through the watertight cable (11) for data packaging, and the photoelectric conversion module (9) converts all the data into optical signals, which are transmitted back to the surface ship (1) through the towing optical cable (3).

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