A deep-sea sediment in-situ low-disturbance intelligent collection equipment and method

Through the autonomously moving deep-sea sediment biomimetic sampling device, combined with the creeping propulsion system and intelligent control system, the problems of high cost, low efficiency, small sampling range and large environmental impact in the existing technology are solved, and low disturbance, systematic and continuous multi-angle sampling is achieved, which improves sample quality and sampling efficiency.

CN119880500BActive Publication Date: 2025-08-26OCEAN UNIV OF CHINA
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Patent Information

Application Number
CN202510079769.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-18
Publication Date
2025-08-26
Estimated Expiration
2045-01-18

AI Technical Summary

Technical Problem

The existing deep-sea sediment sampling devices have high cost, low efficiency, small sampling range, large influence from the marine environment, cannot sample from multiple angles, and lack intelligent identification and path planning, resulting in inaccurate sampling and poor sample quality.

Method used

The deep-sea sediment bionic sampling device is adopted that is separated from the mother ship, equipped with a creeping propulsion system and an intelligent control system, and combined with a variety of intelligent sensors, it realizes autonomous movement, multi-angle sampling and intelligent path planning, reduces costs, and improves sampling efficiency and accuracy.

Benefits of technology

It realizes low-disturbance, systematic and continuous deep-sea sediment sampling, reduces costs, improves sampling efficiency and accuracy, meets multi-angle sampling requirements, and has intelligent control capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

A low-disturbance, intelligent, in-situ collection system for deep-sea sediments and its methods is characterized by comprising a creeping propulsion system, an excavation sampling system, and an intelligent control system. The creeping propulsion system is located outside the excavation sampling system, while the excavation sampling system is located inside the bionic sampling system. The two systems are located at the front end of the equipment, forming a concentric circle relationship. The intelligent control system is fixed to a seabed base station and connected to the creeping propulsion system and the excavation sampling system via cables. Utilizing fluid mechanics structural principles, the equipment can be moved in different directions and at different slopes within deep-sea sediments, enabling in-situ sampling and achieving low environmental disturbance. Using a variety of intelligent sensors to monitor data in real time, the system enables intelligent collection and analysis of sampling data. Using a base station mounting method, the sampling equipment can be detached from the mother ship, significantly reducing costs. This invention enables in-situ, low-disturbance, intelligent sampling of deep-sea sediments and has important engineering significance in the field of deep-sea resource development.
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Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering deep-sea mining equipment, and in particular to a deep-sea sediment bionic sampling device. Background Art

[0002] Sampling marine sediments is an important means of studying the seabed environment. The ocean covers approximately 70% of the Earth's surface, and this vast area is being actively explored. Observations of the seabed have confirmed the presence of a variety of marine resources in the deep seabed. However, the reserves of most seabed resources and the generation mechanisms of seabed resources have not yet been clearly explored. In order to clarify the reserves and formation mechanisms of seabed resources, it is necessary to collect marine sediment samples over a large area and conduct detailed investigations. Sampling deep-sea sediments has the following functions:

[0003] 1. Mineral distribution indicators: The composition and structure of deep-sea sediments can reflect the distribution of seabed minerals. For example, the composition and grain size characteristics of sediments in polymetallic nodule areas (deep-sea manganese nodule areas) can serve as an important reference for mineral exploration.

[0004] 2. Supplementary exploration methods: Through the study of microorganisms in deep-sea sediments, the existence of submarine energy can also be inferred. This biogeochemical exploration method is an effective supplement to traditional exploration methods and helps to discover new submarine mineral resources.

[0005] 3. Fundamentals of Marine Engineering: The geomechanical properties of deep-sea sediments have a significant impact on marine engineering projects, including the laying of submarine cables and oil pipelines, and the design and construction of oil drilling platforms. Testing and analyzing the physical and mechanical properties of sediments can provide a scientific basis for marine engineering.

[0006] At present, some existing domestic patent technologies have proposed methods and means for sampling deep-sea sediments. Due to the complexity of deep-sea sediment sampling conditions and the arduousness of sampling work, related technologies still have major problems and need to be further improved. The main problems of deep-sea sediment sampling devices are:

[0007] 1. In the general sampling method, equipment such as drilling rigs and pipelines are used to penetrate the seabed and collect sediments from ships. Existing exploration equipment must use large ships as mother ships to carry the equipment, which is very expensive to carry out the mining requirements of the equipment.

[0008] 2. Most of the existing sampling equipment is fixed sampling equipment, which has no autonomous mobility and cannot conduct continuous and systematic sampling. In addition, the search range is limited to relatively fixed points, which makes it difficult to meet the requirements of systematic and continuous engineering sampling of deep-sea sediments. The original sampling method is inefficient.

[0009] 3. Existing sediment sampling devices are generally greatly affected by the marine environment, such as ocean currents, tides, and waves. Since the sampling device is connected to the ship through a cable, it will be affected by ocean currents, tides, and waves, resulting in inaccurate sampling or insufficient sampling.

[0010] 4. Most existing sediment sampling devices are single-direction sampling devices and do not have the conditions for multi-angle sampling. They cannot meet the requirements for multi-angle and multi-directional sampling of deep-sea sediments.

[0011] 5. Most existing deep-sea sediment sampling technologies lack intelligent identification and path planning for deep-sea sediment sampling, resulting in low sampling efficiency and poor quality of samples. Summary of the Invention

[0012] Based on the problems and shortcomings of the above-mentioned existing patent technologies, the present invention proposes a bionic sampling device for deep-sea sediments. In terms of equipment, the sampling device is separated from the mother ship and is fixed and controlled by a base station, which greatly saves the high costs caused by the long-term deployment of ships and improves the sampling efficiency. A creeping propulsion system is added to the sampling device, which enables more flexible sampling. In terms of intelligence, the sampling device is installed with a variety of intelligent sensors and is equipped with a corresponding intelligent control system, which can effectively collect and process information, effectively improve the sampling efficiency and the quality of the samples.

[0013] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0014] An in-situ low-disturbance intelligent collection equipment for deep-sea sediments, characterized by comprising a creeping propulsion system, an excavation sampling system and an intelligent control system;

[0015] The creeping propulsion system is located outside the excavation sampling system, and the excavation sampling system is located inside the bionic sampling system. The creeping propulsion system and the excavation sampling system are located at the front end of the device, and their positions form a concentric circle. The intelligent control system is relatively independent of the creeping propulsion system and the excavation sampling system. The intelligent control system is a base station fixed to the seabed and is connected to the creeping propulsion system and the excavation sampling system via cables.

[0016] The creeping propulsion system includes a streamlined anchoring component, a retractable tubular component, an underwater camera, an earth pressure sensor, an acoustic sensor, and a water pressure sensor;

[0017] The internal electrical circuit of the retractable tubular component is connected to the intelligent control system through its internal pipe and wire channels. Under the action of the hydraulic rod and the direction regulator, the tubular component can be folded, bent, and stretched to adjust the height, fore and aft, and pitch angle of the creeping propulsion system in the vertical plane;

[0018] The streamlined anchoring component is equipped with a variety of sensors on its exterior. The sensors can capture relevant characteristics of deep-sea sediments and device morphological information, and feed them back to the intelligent control system. The intelligent control system stores and records the collected deep-sea sediment characteristics, and uses the collected information to judge the operating status of the sampling device under the complex conditions of seabed sediments and plan the sampling route. The streamlined anchoring component is connected to the intelligent control system via internal electrical circuits, and the intelligent control system controls the expansion and anchoring of the anchoring component.

[0019] The underwater camera, soil pressure sensor, acoustic sensor, and water pressure sensor are located at the front end of the creeping propulsion system and are used to capture seabed sediment information and device morphology information, and feed it back to the intelligent control system. The intelligent control system optimizes the planning of the sampling path based on the collected information;

[0020] The excavation sampling system includes a sampling sealing component, a drive motor, a drive shaft, and a supporting pipe. The sampling sealing component is located at the front end of the entire device. The sampling sealing component has electrical circuits and intelligent sensors inside. The intelligent sensors are connected to the intelligent control system through the internal electrical circuits. The sealing sampling component seals the sample to achieve the purpose of in-situ sampling.

[0021] The intelligent control system includes an electronic control equipment compartment, an energy supply compartment, a cable storage compartment, and a data storage compartment. The cable storage compartment, located at the bottom of the entire intelligent control system, stores a certain length of cable, which is connected to the creeping propulsion system and the excavation sampling system. This serves as a signal transmission and energy supply, effectively assisting the sampling device in flexibly propelling and adjusting its driving posture. The electronic control equipment compartment houses an information processor and signal transmitter, which processes information about the seabed environment and the sampling device fed back by various information collectors. With the assistance of the operator, it can issue new commands to adjust the operating status of the entire sampling device.

[0022] The deep-sea sediment in-situ low-intrusion intelligent collection equipment is characterized by a streamlined, circular anchoring component that acts as an anchor by expanding the corresponding expandable component, while the retractable tubular component simultaneously expands and contracts, with the multiple components working together to propel the vessel. The streamlined anchoring component is nested within the retractable tubular component, and both components are coordinated and coordinated by an intelligent control system.

[0023] The deep-sea sediment in-situ low-disturbance intelligent collection equipment is characterized in that when the optical sensor located inside the excavation sampling system detects that the total amount of samples inside the excavation sampling system meets the requirements, the entire sampling device will stop sampling and the sampling sealing component will seal the entire system to ensure the integrity and in-situ nature of the deep-sea sediment sampling.

[0024] The deep-sea sediment in-situ low-disturbance intelligent collection equipment is characterized in that the intelligent control system is located in the base station and is connected to the sampling part through a cable. By receiving information from the sampling part's sensors and processing and storing it, it assists the sampling part in adjusting different angles and directions according to actual conditions to obtain deep-sea sediments that meet the conditions.

[0025] The deep-sea sediment in-situ low-intrusion intelligent sampling equipment is characterized by a sampling unit connected to a base station via a cable, which secures the sampling unit. An intelligent control system, located within the base station, uses an information processor to summarize the sampling device's operating status and make corresponding adjustments. A signal transmitter also reports sampling progress to staff in real time and receives adjustment instructions from staff.

[0026] A method for in-situ low-disturbance intelligent collection of deep-sea sediments, characterized by comprising the following steps:

[0027] Step 1: The sampling device is lowered from the mother ship to the sampling operation area through the lifting system. The operator adjusts the direction and posture of the sampling device through the lifting system according to the underwater condition information reflected by the underwater camera, the terrain information and location information captured by the acoustic sensor. The base station is fixed on the seabed, and the intelligent control system performs route planning. The sampling device completes the operation preparation work.

[0028] Step 2: The creeping propulsion acoustic sensor starts working, acquiring deep-sea sediment information by emitting short pulse sound waves to the surface of deep-sea sediments and receiving reflected waves, and transmitting the approximate thickness and density information of the area to the intelligent control system. The device takes active samples 3-10m below the surface of deep-sea sediments.

[0029] Step 3: The creeping propulsion system of the sampling part and the excavation sampling system start working at the same time. The excavation sampling system digs into the interior of the deep-sea sediment. At the same time, the anchoring component of the creeping propulsion system shrinks by 15%-30%, and the retractable pipe extends, driving the anchoring component into the surface of the deep-sea sediment. The device is propulsed by creeping to achieve the purpose of low disturbance to the deep-sea sediment.

[0030] Step 4: After the entire sampling device enters the deep-sea sediment formation, the sensors of the creeping propulsion system collect information and transmit the information to the intelligent control system. After processing the sensor information, the intelligent control system determines the corresponding deep-sea sediment information and transmits it to the staff through the signal transmitter.

[0031] Step 5: After determining the corresponding sediment information, the intelligent control system plans the best sampling route by processing the previous information, and transmits signals through cables to adjust the posture of the sampling device. The pitch angle range is 0°-15° and the turning radius is 2m-3m.

[0032] Step 6: The sampling device starts working, the anchoring component of the first part of the creeping propulsion system shrinks by 15%-30%, and the retractable pipe of the first part of the creeping propulsion system extends. After the pipe of the first part is extended, the anchoring component of the first part expands and returns to its original shape, anchoring the first part in the soil.

[0033] Step 7: At the same time, the anchoring component of the second part shrinks by 15%-30%, and the pipe of the first part shrinks, driving the second part of the creeping propulsion system forward. At the same time, the pipe of the second part stretches. After the second part moves forward, the anchoring component of the second part expands and returns to its original shape, anchoring the second part in the soil.

[0034] Step 8: The third section's anchoring components then contract by 15%-30%, driving the second section's tubing forward. After the third section completes its advance, the anchoring components expand and return to their original shape, allowing the entire device, including the excavation and sampling system within it, to advance. This completes the creeping propulsion process, during which the intelligent control system adjusts the entire device's operating conditions in real time.

[0035] Step 9: After the intelligent sensor inside the excavation sampling system detects that deep-sea sediments that meet the standards have been collected, the sampling sealing components located at the front and back ends of the entire excavation sampling system will seal the entire excavation sampling system to ensure the integrity and systematicity of the samples.

[0036] Step 10: After the sampling is completed, the entire sampling device returns to its original path, and the intelligent control system sends a signal to the staff to locate the position of the entire device, which is then salvaged by the corresponding vessel to harvest the corresponding deep-sea sediment samples.

[0037] 1. The device is not attached to a vessel and is relatively independent compared to traditional sampling devices. The device can be placed independently, effectively reducing the cost of deploying a vessel. This can effectively reduce sampling costs.

[0038] 2. The sampling device includes its own propulsion system. Compared with traditional sampling devices, this device is equipped with a propulsion device and can move in seabed sediments, effectively overcoming the shortcomings of traditional deep-sea sediment sampling devices, such as small sampling range and relatively fixed search range. At the same time, it also ensures the systematic and continuous sampling of deep-sea sediments, meeting the needs of actual engineering problems.

[0039] 3. The fixed base station of this invention is located on the seabed, which prevents the cables from being affected by seawater scouring, ocean currents and tides, can reduce the impact of environmental factors on the sampling device, and ensure the accuracy and efficiency of sampling.

[0040] 4. The device has the ability to sample at multiple angles and directions, which can meet the sampling requirements at multiple angles and directions, and can effectively meet the actual needs, making the sampling more refined and efficient.

[0041] 5. The device is equipped with an intelligent control system and a variety of intelligent sensors, forming a highly efficient intelligent system that can perform real-time regulation according to actual engineering conditions to meet the requirements of actual projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 This is a structural schematic diagram of the sampling part of the deep-sea sediment in-situ low-disturbance intelligent collection equipment and method of the present invention.

[0044] Figure 2 This is a cross-sectional schematic diagram of the sampling part of an in-situ low-disturbance intelligent collection equipment and method for deep-sea sediments.

[0045] Figure 3 This is a schematic cross-sectional view of the sampling portion of an in-situ low-disturbance intelligent collection device and method for deep-sea sediments.

[0046] Figure 4 This is a schematic cross-sectional view of a sampling portion cross section 1-101 of an in-situ low-disturbance intelligent collection equipment and method for deep-sea sediments.

[0047] Figure 5 Schematic diagram of an intelligent control system for in-situ low-disturbance intelligent collection equipment and method for deep-sea sediments.

[0048] Figure 6 The figure is a schematic cross-sectional diagram of the main structure of an intelligent control system for an in-situ low-disturbance intelligent collection equipment and method for deep-sea sediments.

[0049] Figure 7 Schematic diagram of the motion process of an in-situ low-disturbance intelligent collection equipment and method for deep-sea sediments

[0050] In the figure: 101 - Anchoring component of the first part of the peristaltic propulsion system; 103 - Anchoring component of the second part of the peristaltic propulsion system; 105 - Anchoring component of the third part of the peristaltic propulsion system; 102 - Telescopic pipe fitting of the first part of the peristaltic propulsion system; 104 - Telescopic pipe fitting of the second part of the peristaltic propulsion system; 106 - Telescopic pipe fitting of the third part of the peristaltic propulsion system; 201, 202 - Sampling sealing component; 203 - Drive motor; 204 - Underwater camera; 205 - Acoustic sensor; 206, 208, 212 - Smart sensor ; 209- transmission shaft; 210- sealing baffle; 211- acoustic thickness gauge; 301, 303- signal receiver; 302- signal transmitter; 304- cable storage compartment; 305, 307- electronic control equipment compartment; 306- data storage compartment; 308- energy supply compartment; 309- base; 1-101-1-106 are direction regulators; 1-107, 1-108 are hydraulic propulsion devices; 1-109, 1-110 are lateral propulsion devices; 1-111, 1-112 are hydraulic propulsion devices DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content. Example

[0053] like Figure 1-2 The creeping propulsion system includes streamlined anchoring components 101, 103, 105, retractable tubular components 102, 104, 106, and an underwater camera 204;

[0054] like Figure 1-2The retractable tubular components are equipped with electrical circuits 102, 104, and 106, which are connected to an intelligent control system through internal pipes and wire channels. Under the action of hydraulic rods 1-107, 1-108, 1-111, and 1-112, direction regulators 1-101 to 1-106, and lateral propulsion devices 1-109 and 1-110, the tubular components can be folded, bent, and extended to adjust the height, front and back, and pitch angles of the creeping propulsion system in the vertical plane.

[0055] like Figure 1-2 The excavation sampling system includes sampling and sealing components 201 and 202, a drive motor 203, a drive shaft 209, and a support pipe 213. The sampling and sealing component 201 is located at the front end of the entire device. The sampling and sealing component has electrical circuits and an intelligent sensor 208 inside. The intelligent sensor 208 is connected to the intelligent control system through the internal electrical circuits.

[0056] like Figure 3-4 The intelligent control system includes electronic control equipment compartments 305 and 307, an energy supply compartment 308, a cable storage compartment 304, and a data storage compartment 306. The cable storage compartment 304 is located at the bottom of the entire intelligent control system, storing a certain length of cable to connect the creeping propulsion system and the excavation sampling system, providing signal transmission and energy supply, effectively helping the sampling device to flexibly propel and adjust its driving posture. The electronic control equipment compartment controls the information processor and signal transmitter, capable of processing the seabed environment and sampling device information fed back by various information collectors. With the assistance of the operator, it can issue new instructions to adjust the operating status of the entire sampling device.

[0057] The deep-sea sediment in-situ low-disturbance intelligent collection equipment and method comprises the following steps:

[0058] Step 1: The sampling device is lowered from the mother ship to the sampling operation area through the hoisting system. The operator adjusts the sampling device through the adjustment system according to the underwater status information reflected by the underwater camera 204, the topography information and position information captured by the acoustic sensor 205 ( Figure 1 ) direction and attitude, base station 309 is fixed on the seabed, and the intelligent control system ( Figure 3 ) for route planning, sampling device ( Figure 1 ) Complete the preparatory work for the operation.

[0059] Step 2: The acoustic sensor 211 of the creeping propulsion system starts working, emitting short pulse sound waves to the surface of the deep-sea sediment and receiving the reflected waves to obtain deep-sea sediment information, and transmit the approximate thickness information of the area to the intelligent control system ( Figure 3 ), the device is used to take samples 3-10m below the surface of deep-sea sediments.

[0060] Step 3: The creeping propulsion system and excavation sampling system of the sampling part ( Figure 1 ) and start working at the same time. The excavation sampling system digs into the interior of the deep-sea sediments. At the same time, the anchoring components of the creeping propulsion system shrink 101, 103, and 105, and the device propels itself through creeping motion to achieve the purpose of low disturbance to the deep-sea sediments.

[0061] Step 4: In the entire sampling device ( Figure 1 ) After entering the deep-sea sediment formation, the sensors 206 and 212 of the creeping propulsion system collect information and transmit the information to the intelligent control system ( Figure 3 ), after processing the sensor information, the electronic control equipment compartments 305 and 307 of the intelligent control system determine the corresponding deep-sea sediment information and transmit it to the staff through the signal transmitting device 302;

[0062] Step 5: After determining the corresponding sediment information, the intelligent control system ( Figure 3 ) By processing previous information, the optimal sampling route is planned and the signal is transmitted through the cable to adjust the sampling device ( Figure 1 ) has an attitude pitch angle range of 0°-15° and a turning radius of 2m-3m;

[0063] Step 6: Sampling device ( Figure 1 ) starts working, the first part anchoring component 101 of the creeping propulsion system contracts by 15%-30%, and the telescopic pipe 102 of the first part of the creeping propulsion system extends. After the pipe of the first part is extended, the anchoring component 101 of the first part expands to anchor the first part in the soil. Figure 5 , as shown in parts a, b, and c.

[0064] Step 7: At the same time, the second part of the anchoring component 103 shrinks by 15%-30%, the first part of the pipe shrinks 102, driving the second part of the creeping propulsion system forward, and at the same time the second part of the pipe 104 extends. After the second part has moved forward, the second part of the anchoring component 103 expands back to its original shape, anchoring the second part in the soil. Figure 5 , as shown in parts b, c, and d.

[0065] Step 8: The third section's anchoring component 105 then contracts by 15%-30%, while the second section's tubular component contracts 104, driving the third section of the creeping propulsion system forward. After the third section has completed its advance, the third section's anchoring component expands 105, propelling the entire device forward, including the excavation and sampling system within it. This completes one creeping propulsion cycle, during which the intelligent control system adjusts the entire device's operating conditions in real time. Figure 5 , as shown in parts c, d, and e.

[0066] Step 9: After the intelligent sensor 208 inside the excavation sampling system detects that deep-sea sediments that meet the standards have been collected, the sampling sealing components 201 and 202 located at the front and rear ends of the entire excavation sampling system will seal the entire excavation sampling system to ensure the integrity and systematicity of the sampled material and achieve the purpose of in-situ sampling.

[0067] Step 10: After sampling is completed, the entire sampling device returns to its original path, and the signal transmitter 302 of the intelligent control system sends a signal to the staff to locate the position of the entire device, and the corresponding ship salvages and harvests the corresponding deep-sea sediment samples.

[0068] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A deep-sea sediment in-situ low-disturbance intelligent collection equipment, characterized by: Including creeping propulsion system, excavation sampling system and intelligent control system; The creeping propulsion system is located outside the excavation sampling system, and the excavation sampling system is located inside the bionic sampling system. The creeping propulsion system and the excavation sampling system are located at the front end of the device, and their positions form a concentric circle. The intelligent control system is relatively independent of the creeping propulsion system and the excavation sampling system. The intelligent control system is a base station fixed to the seabed and is connected to the creeping propulsion system and the excavation sampling system via cables. The creeping propulsion system includes a streamlined anchoring component, a retractable tubular component, an underwater camera, an earth pressure sensor, an acoustic sensor, and a water pressure sensor; The internal electrical circuit of the retractable tubular component is connected to the intelligent control system through its internal pipe and wire channels. Under the action of the hydraulic rod and the direction regulator, the tubular component can be folded, bent, and stretched to adjust the height, fore and aft, and pitch angle of the creeping propulsion system in the vertical plane; The streamlined anchoring component is externally equipped with an intelligent sensor that can capture relevant characteristics of deep-sea sediments and device morphological information, and feed it back to the intelligent control system. The intelligent control system stores and records the collected deep-sea sediment characteristics, and uses the collected information to judge the operating status of the sampling device under the complex conditions of seabed sediments and plan the sampling route. The streamlined anchoring component is connected to the intelligent control system via internal electrical circuits, and the intelligent control system controls the expansion and anchoring of the anchoring component. The underwater camera, soil pressure sensor, acoustic sensor and water pressure sensor are located at the front end of the creeping propulsion system and are used to capture seabed sediment information and device morphology information, and feed it back to the intelligent control system. The intelligent control system optimizes the planning of the sampling path based on the collected information; The excavation sampling system includes a sampling sealing component, a drive motor, a drive shaft, and a supporting pipe. The sampling sealing component is located at the front end of the entire device. The sampling sealing component has an electrical circuit and an intelligent sensor inside. The intelligent sensor is connected to the intelligent control system through the internal electrical circuit. The sample is sealed by the sealing sampling component to achieve the purpose of in-situ sampling. The intelligent control system includes an electronic control equipment compartment, an energy supply compartment, a cable storage compartment, and a data storage compartment; the cable storage compartment is set at the bottom of the entire intelligent control system, storing a certain length of cable connected to the creeping propulsion system and the excavation sampling system, playing the role of signal transmission and energy supply, and effectively helping the sampling device to flexibly propel and adjust the driving posture; the electronic control equipment compartment is equipped with an information processor and a signal transmitter, which can process the seabed environment and sampling device information fed back by various information collectors, and can issue new instructions to adjust the working condition of the entire sampling device under the assistance and control of the operator.

2. The deep-sea sediment in-situ low-disturbance intelligent collection equipment according to claim 1, characterized in that: The streamlined anchoring component is generally circular in shape and acts as an anchor by expanding the corresponding expandable component. At the same time, the retractable tubular component retracts and contracts, and the multiple components cooperate with each other to act as a propulsion component. The streamlined anchoring component is nested on the outside of the retractable tubular component, and both are coordinated and cooperated by an intelligent control system.

3. The deep-sea sediment in-situ low-disturbance intelligent collection equipment according to claim 1, characterized in that: When the optical sensor located inside the excavation sampling system detects that the total amount of samples inside the excavation sampling system meets the requirements, the entire sampling device will stop sampling and the sampling sealing component will seal the entire system to ensure the integrity and in-situ nature of the deep-sea sediment sampling.

4. The deep-sea sediment in-situ low-disturbance intelligent collection equipment according to claim 1, characterized in that: The intelligent control system is located in the base station and is connected to the sampling part through cables. It receives information from the sampling part's sensors and processes and stores it, thereby assisting the sampling part in adjusting different angles and directions according to actual conditions to achieve deep-sea sediments that meet the conditions.

5. The deep-sea sediment in-situ low-disturbance intelligent collection equipment according to claim 1, characterized in that: The sampling part is connected to the base station through a cable, and the base station plays a fixing role for the sampling part; at the same time, the intelligent control system is also located in the base station, which summarizes the working status of the sampling device through the information processor and makes corresponding adjustments. At the same time, it reports the sampling progress to the staff in real time through the signal transmitter and accepts adjustment instructions from the staff.

6. A method for in-situ low-disturbance intelligent collection of deep-sea sediments, characterized in that: A deep-sea sediment sampling activity is carried out using the deep-sea sediment in-situ low-disturbance intelligent collection equipment according to any one of claims 1 to 5, and the method comprises the following steps: Step 1: The sampling device is lowered from the mother ship to the sampling operation area through the hoisting system. The operator adjusts the direction and posture of the sampling device through the adjustment system based on the underwater situation information reflected by the underwater camera and the terrain information and location information captured by the acoustic sensor. The base station is fixed on the seabed, and the intelligent control system performs route planning. The sampling device completes the operation preparation work; Step 2: The creeping propulsion acoustic sensor starts working, emitting short pulse sound waves to the surface of deep-sea sediments and receiving reflected waves to obtain deep-sea sediment information. The approximate thickness and density information of the area is transmitted to the intelligent control system. The device actively samples 3-7 meters below the surface of the deep-sea sediments. Step 3: The creeping propulsion system and the excavation sampling system of the sampling part start working simultaneously. The excavation sampling unit excavates into the deep-sea sediment. At the same time, the anchoring component of the creeping propulsion system contracts by 15%-30%, and the retractable pipe extends, driving the anchoring component into the surface layer of the deep-sea sediment. The device propels itself through creeping motion to achieve the purpose of low disturbance to the deep-sea sediment. Step 4: After the entire sampling device enters the deep-sea sediment formation, the sensors of the creeping propulsion system collect information and transmit it to the intelligent control system. After processing the sensor information, the intelligent control system determines the corresponding deep-sea sediment information and transmits it to the staff through the signal transmitter; Step 5: After determining the corresponding sediment information, the intelligent control system plans the best sampling route by processing the previous information and transmits signals through the cable to adjust the attitude of the sampling device. The pitch angle range is 0°-15° and the turning radius is 2m-3m; Step 6: The sampling device starts working, the anchoring component of the first part of the creeping propulsion system contracts by 15%-30%, and the retractable pipe of the first part of the creeping propulsion system extends. After the pipe of the first part has been extended, the anchoring component of the first part expands and returns to its original shape, anchoring the first part in the soil; Step 7: At the same time, the anchoring component of the second part contracts by 15%-30%, and the pipe of the first part contracts, driving the second part of the creeping propulsion system forward. At the same time, the pipe of the second part extends. After the second part has moved forward, the anchoring component of the second part expands and returns to its original shape, anchoring the second part in the soil. Step 8: The anchoring component of the third section then contracts by 15%-30%, and the contraction of the pipe in the second section drives the third section of the creeping propulsion system forward. After the third section has completed its advancement, the anchoring component in the third section expands and returns to its original shape. At this point, the entire device, including the excavation and sampling system inside the creeping propulsion system, moves forward. This is a complete creeping propulsion process of the device, and the working conditions of the entire device are adjusted in real time by the intelligent control system during the propulsion process. Step 9: After the intelligent sensors inside the excavation sampling system detect that the deep-sea sediments that meet the standards have been collected, the sampling sealing components located at the front and back ends of the entire excavation sampling system will seal the entire excavation sampling system to ensure the integrity and systematicity of the sampled material; Step 10: After the sampling is completed, the entire sampling device returns to its original path, and the intelligent control system sends a signal to the staff to locate the position of the entire device, which is then salvaged by the corresponding vessel to harvest the corresponding deep-sea sediment samples.

Citation Information

Patent Citations

  • ROV-based deep sea sediment acoustic parameter in-situ detection system and method

    CN111595611A

  • Apparatus for Collecting Marine Deposits

    US20110232138A1