25 results about "Ocean depth" patented technology

The system comprises an equipment boat body, the equipment boat body is provided with a vertically-through water inlet and outlet pipe, a water inlet of the water inlet and outlet pipe is provided with a switch mechanism, the switch mechanism is connected to a mother ship through a mooring rope, and the switch mechanism is used for blocking or opening the water inlet pipe. A pure mechanical structure is adopted, the operation is simpler and more reliable, the operation is simple and convenient, a complex control system is not needed, the equipment cost is low, and the operation efficiency and safety are improved; the system can eliminate negative pressure generated when ocean equipment and seabed soft soil are separated through natural flowing-in and flowing-out of seawater to accelerate escape, dependence on high-energy equipment is reduced, the water inlet and outlet pipes are combined with jumping pulling force to increase the seawater flowing efficiency, then the negative pressure elimination rate is increased, and the system is not affected by the ocean depth and the seabed environment; the structure is simple, the application range is wider, the damage risk of marine equipment can be reduced, energy is saved, efficiency is high, and the manufacturing and using cost of the marine equipment is reduced.

The invention discloses a plug-in mounting and separating tool special for underwater operation and an operation method. The plug-in mounting and separating tool comprises a plug-in mounting male connector, a plug-in mounting female connector, an in-situ sample storage tank, a hose and an operation handle. The plug-in female joint is connected with the storage tank through a hose, and the plug-in male joint is fixedly connected with the operating handle. A guide ring is arranged at the front end of the plug-in male connector, and a guide support is arranged at an inlet of the plug-in female connector. And sealing plugs driven by springs are arranged in the two parts and are kept sealed in a normal state. And a limiting insertion rod is arranged in the insertion female joint. And a compensation film and a compensation film spring are arranged in the storage tank. During insertion, the guide ring is matched with the guide support, the two sealing plugs abut against each other to be opened to form a channel, the limiting insertion rod is automatically locked, and a sample flows into the reagent bag under the action of the compensation film spring. During separation, the limiting insertion rod is separated, and the sealing plug automatically resets for sealing. The device is compact in structure and reliable in operation, adapts to a full-sea-depth environment, can realize unpowered transfer and recovery of underwater samples, and has important engineering application value.

The invention discloses a full-sea-depth metal hydrogen manufacturing device which comprises an upper shell and a lower shell which are assembled together, a water inlet hole communicated with the outside is formed in the upper shell or the lower shell to form an open structure, clamping grooves are correspondingly formed in the upper shell and the lower shell, an anode and a counter electrode are arranged in the clamping grooves in the two sides respectively, and the anode and the counter electrode are arranged in the clamping grooves in the two sides respectively. A bipolar electrode composed of a diaphragm, an anode and a counter electrode is inserted into the middle clamping groove, the anode and the counter electrode are clamped on the two sides of the diaphragm, the anode and the counter electrode are connected through a conductive connecting piece penetrating through the diaphragm, and the connecting piece in the upper shell and the connecting piece in the lower shell are connected with a controller through a watertight cable. The device is of an open structure, the internal and external pressure difference of the device is eliminated, seawater serves as electrolyte, the electrolyte does not need to be carried, and the hydrogen production rate can be adjusted through the controller.

An automatic release system and operating method for underwater instruments and equipment upon contact with the seabed are disclosed. At least three bottom-seating trigger mechanisms are evenly distributed and installed on the bottom of the instrument body. Each bottom-seating trigger mechanism contains a push-rod type seawater valve. A seawater pressure drive cylinder is installed on the instrument body. The release actuator includes a release pin, a pin guide seat, a first connecting rod, a second connecting rod, and an ear plate. The hydraulic lines of the push-rod type seawater valves in all bottom-seating trigger mechanisms are connected in series, ensuring that external seawater can only enter the rodless chamber of the seawater pressure drive cylinder via the hydraulic lines when all bottom-seating trigger mechanisms are simultaneously and continuously in contact with the seabed. This drives the release pin to retract, achieving automatic release of the instrument body from the load-bearing head. Utilizing contact force triggering and environmental pressure as the power source, this system features simple structure, high reliability, strong anti-false triggering capability, and adaptability to operations at all ocean depths. It is widely used in the deployment of seabed exploration instruments and equipment.

The application discloses a kind of marine observation data gridding multi-level parallel acceleration calculation method and system.The application is based on the coarse-grained parallel implementation of climate model between MPI parallel architecture and parallel computing acceleration of ocean depth data, mainly includes the IO parallel reading of data, the calculation and distribution of climate model data, the synchronization of gridding data etc.;Based on the fine-grained parallel computing of OpenMP parallel architecture, the parallel computing of algorithm level between CPU core in node is realized, mainly includes the data gridding of each grid point in grid;For the gridding calculation of data in grid point, the distribution of data structure in memory is adjusted, and the specific calculation operation is accelerated using SIMD.The application can flexibly configure parallel scale according to specific hardware resources, realize the maximization of computing power utilization, and can provide computing power support for the construction of long-time sequence complete and reliable ocean grid data.

The invention discloses a remote sensing estimation method and a remote sensing estimation device for the primary productivity of marine phytoplankton in size fraction, and the method comprises the steps: building an estimation function of the photosynthetic quantum yield of the phytoplankton in the corresponding size fraction based on the relation between the light intensity and the photosynthetic quantum yield of the phytoplankton in the single size fraction; calculating the net primary productivity of the phytoplankton of the corresponding size fraction based on the photosynthetic quantum yield and the average light absorption coefficient of the phytoplankton of the single size fraction under the scale of the light intensity duration and the ocean depth measurement range; and adding the net primary productivity of the phytoplankton in the plurality of size fractions, and calculating to obtain the total primary productivity of the phytoplankton. By adopting the technical scheme, in a framework of light absorption and conversion of the phytoplankton, the light absorption coefficient of the phytoplankton with different size fractions and the size fraction difference of the photosynthetic quantum yield are considered at the same time, an effective scheme for quantitative expression estimation of the phytoplankton is established, the estimation error of the primary productivity caused by neglecting the size fraction difference can be effectively reduced, and the estimation accuracy of the primary productivity is improved. And the estimation accuracy is improved.

High-specific-strength hollow glass beads for full ocean depth, and a preparation method therefor, relating to the technical field of glass bead preparation. The high-specific-strength hollow glass beads for full ocean depth comprise the following components in percentage by mass: 70-80% of SiO2, 1-5% of Al2O3, 8-15% of B2O3, 1-3% of ZnO, 4-10% of Na2O, 0.5-2% of Li2O, 5-10% of CaO, 0.5-2% of SO3, 0.5-1% of ZrO2, and 0-1% of other R2O3. The obtained hollow glass beads have a true density of 0.40-0.46 g / cm3, a particle size distribution d(50) of less than or equal to 20 μm, a particle size distribution d(90) of less than or equal to 35 μm and a particle size distribution d(97) of less than or equal to 45 μm, a floating rate of greater than or equal to 99%, and a water-resistant isostatic pressing strength of 110-120 Mpa; and the hollow glass beads have excellent performance, can be applied to full ocean depth, and have very important application value.

This invention discloses a full-ocean-depth metal-seawater fuel cell. The metal anode material mainly comprises one or more of the following components: Mg, Sn, B, La, Ce, Pr, Nd, Dy, Sm, Ti, and Ca, with the balance being Al. The electrolyte of this invention is a mixed aqueous solution of natural seawater, sodium stannate, zinc oxide, zinc sulfate, sodium carbonate, and cerium chloride, with the pH adjusted to between 12 and 14. The metal anode of this invention, in the above electrolyte, not only significantly reduces the hydrogen evolution corrosion rate but also directionally induces product formation, thereby improving electrochemical performance. The preparation method of this metal anode and electrolyte is simple, applicable to different temperature and pressure variations and operating current densities, and can be applied to metal-seawater fuel cells under various operating conditions at full ocean depth.

A system to remove CO2 from the air using ocean thermal energy conversion is disclosed. The system includes a pair of substantially vertically oriented concentric tapered tubular structures disposed in the ocean, with an upper end at or near the surface and a lower end at ocean depth. The tubular structures define an inner, substantially cylindrical air pathway and an outer, substantially annular pathway. Each of one or more bifans at corresponding axial locations along a central vertical axis of the tubular structures includes an inner set of fan blades disposed in the inner air pathway and an outer set of fan blades disposed in the outer pathway. In one airway air is compressed isothermally and moved to a deep end of the system while air returning and expanding isothermally via the other airway drives the bifan(s), which provides the compression and drives a motor to generate electricity.

The application provides a marine environment noise prediction method for ship abnormal behavior monitoring, and comprises the following steps: establishing a marine environment noise prediction model; determining the type of the marine environment noise numerical prediction model; and performing marine environment noise prediction according to the determined type of the prediction model. The application constructs a fast and refined marine environment noise prediction model, the fast model considers three noise sources of wind, rain and ships, and realizes the purpose of real-time fast prediction of marine environment noise according to the source level empirical formula of different noise sources summarized according to the measured data; the refined model considers two noise sources of wind and ships, and realizes the purpose of refined prediction of marine environment noise by using the source level empirical formula of different noise sources, combining real-time gridded wind speed and ship AIS data to complete the construction of wind and ship noise source models, and comprehensively considering the factors of gridded hydrological information and ocean depth database and calculation frequency.

A Dry-Mate Connector System (DMCS) is capable of a direct and convenient connection / disconnection of standardized Commercial Off-The Shelf (COTS)-compatible data communication cables and connectors with submersible electronic equipment for transmission of data / signals / power therebetween, and is suitable for indefinite submersion, as well as adaptable to full ocean depth. DMCS is equipped with sealing elements, a keying / alignment mechanism for proper alignment of COTS connectors for mating the portions, a locking mechanism to ensure the portions remain locked and pressure sealed, and a dummy plug for sealing the connector when not in use. Functional dummy plugs are contemplated to broaden the functionality.

This invention discloses a high-frequency, multi-channel, wide-bandwidth directional receiving array capable of operating at full ocean depth. The array includes an array housing and at least one receiving array module. Each module comprises an array frame and several ceramic elements. The array frame has a porous mesh structure with reinforcing frames on its front and rear sides. The number of ceramic elements corresponds to the number of mesh holes in the array frame, and the ceramic elements are placed within the corresponding mesh holes. An upper matching layer and a lower matching layer are respectively provided on the upper and lower surfaces of the array frame. Corresponding cutting marks are provided on the reinforcing frames on both sides. The upper matching layer has slots cut at the front and rear of the slots, which communicate with the mesh holes below. This invention solves the problem of simultaneously achieving wide bandwidth and wide directivity in multi-channel arrays, improving the detection coverage of multibeam bathysound sonar.

The present application relates to the technical field of deep-sea sampling pressure maintaining, and provides an active pressure compensator for deep-sea sampling and a pressure compensation method thereof, the active pressure compensator comprising a spring water supplementing cylinder, a cam pressure compensating pump and a circuit cavity, the spring water supplementing cylinder being used for providing compensation liquid for the cam pressure compensating pump; the cam pressure compensating pump being arranged to be capable of sucking liquid from the spring water supplementing cylinder and pumping out liquid to the circuit cavity; the circuit cavity being used for being connected with a pressure mechanism to be compensated, and being internally provided with a pressure sensor and a control circuit board, the pressure sensor being used for detecting the pressure of the liquid output by the cam pressure compensating pump and the pressure mechanism to be compensated, and the control circuit board being used for sending a control instruction based on the pressure data fed back by the pressure sensor to control the working of the cam pressure compensating pump, so as to realize active pressure compensation for the pressure mechanism to be compensated; the active pressure compensator can actively maintain the pressure for the pressure mechanism to be compensated within the range of 6000 meters of ocean depth, has simple and compact overall structure, small volume, high safety and strong adaptability.

This invention belongs to the field of ocean depth sounder technology, specifically a deployment and retrieval device and method for an ocean depth sounder. Existing deployment and retrieval devices typically fix the depth sounder to a rope and manually deploy it into the ocean for measurement. However, this is time-consuming and labor-intensive when the deployment distance is long, reducing measurement efficiency. The invention includes a mounting plate with symmetrically fixed support plates. A drive motor is fixedly mounted on the support plates and connected to a retrieval control assembly. The retrieval control assembly includes a drive pulley on the output end of the drive motor, connected to the retrieval pulley via a conveyor belt. A drive shaft is mounted on the retrieval pulley. The retrieval control assembly allows the rope to lower the depth sounder into the sea for depth measurement. The deployment and retrieval of the rope are directly controlled by the motor, avoiding manual operation, saving time and labor, and thus improving measurement efficiency.

Efficient fish farming techniques are described, involving a land-based continuous flow saltwater tank fed by seawater inlets, and efficient water flow and waste removal techniques that promote good fish farming conditions. Features include devices for promoting a filamentary flow within the continuous flow tank, and efficient waste removal, and multiple seawater inlets from different ocean depths.

The invention relates to the technical field of environmental monitoring, in particular to a real-time marine environmental element monitoring system, which comprises an acquisition unit, a construction unit, a processing unit and a separation unit, and is characterized in that the acquisition unit adapts acquisition frequency according to marine depth, combines threshold triggering and external instructions, and acquires environmental data, node parameters and target signals in real time; the construction unit simulates an interference signal refraction propagation path through ray acoustics based on the data, extracts signal features, and fuses multi-dimensional data to train an interference prediction model; the processing unit inputs related data into a model and outputs a precise interference result; and the separation unit is combined with the interference result, and the interference signal is stripped from the mixed signal through frequency domain conversion, dynamic filtering, time domain reconstruction and verification. According to the method, accurate prediction and separation of interference signals are realized, the real-time performance, accuracy and reliability of marine environment element monitoring are remarkably improved, and powerful technical support is provided for marine resource development.

The invention provides an auxiliary path planning method for a UUV (Unmanned Underwater Vehicle) under a prior condition, and relates to the field of path planning. According to the method, UUV inherent information such as turning radius, safety depth, energy and navigational speed-power relation and prior environment information such as obstacles, ocean depth and ocean current data are obtained, an initial waypoint is generated according to longitude and latitude of a starting point and a terminal point, and linear matrix operation is combined to obtain a navigation path; waypoints are adjusted based on ocean currents to minimize energy consumption, sailing safety is ensured based on sea depth adjustment, obstacle avoidance is achieved based on obstacles and UUV turning radius adjustment, a planning strategy of longest voyage priority, time priority or concealment priority can be selected, and finally waypoints in the form of longitude, latitude, depth and navigational speed are output. According to the method, the problems of low efficiency, single factor and repeated work existing in manual planning can be effectively solved, the air route planning efficiency and accuracy are greatly improved, the efficiency is improved by more than 95% in a complex scene, and manual repeated work is reduced.

A method and system for storing and processing biomass harvested at extreme ocean depths includes an ocean control system that assists in the storage of biomass such as seaweed and / or algal biomass in a containment vessel, controls the floating and / or sinking of the containment vessel, performs performance and safety monitoring and verification, and enables the seaweed and / or biomass to be stored and / or retrieved on demand.

The invention relates to a floating fan load quantification method considering deep and far sea complex constraints, and the method comprises the following steps: obtaining short-time-scale environmental data under wind wave flow coupling constraints, setting ocean water depth constraints, and obtaining short-time-scale loads of all parts of a floating fan through an FAST-AQWA model; the method comprises the following steps: constructing a load-environment sample, inputting the load-environment sample into a multi-component differential load prediction model based on MMACM-BiLSTM, extracting and fusing multi-scale feature maps by using MMACM, extracting bidirectional time sequence features by using BiLSTM, and finally outputting predicted loads of each component in various environments; and constructing a floating type fan joint reliability analysis framework comprising multiple components, and evaluating the reliability of each component and the overall reliability of the floating type fan based on the predicted load of each component in multiple environments. Compared with the prior art, the method has the advantages of realizing overall reliability evaluation of a single component and the floating fan and the like.

A system to remove CO2 from the air using ocean thermal energy conversion is disclosed. The system includes a pair of substantially vertically oriented concentric tapered tubular structures disposed in the ocean, with an upper end at or near the surface and a lower end at ocean depth. The tubular structures define an inner, substantially cylindrical air pathway and an outer, substantially annular pathway. Each of one or more bifans at corresponding axial locations along a central vertical axis of the tubular structures includes an inner set of fan blades disposed in the inner air pathway and an outer set of fan blades disposed in the outer pathway. In one airway air is compressed isothermally and moved to a deep end of the system while air returning and expanding isothermally via the other airway drives the bifan(s), which provides the compression and drives a motor to generate electricity.

The utility model discloses an ocean engineering and underwater robot technology, aims at providing a kind of full-sea depth underwater equipment automatic short-circuit switch, its technical solution main point is including short-circuit switch body, this short-circuit switch body includes: casing, with equipment fixed connection and is used to ensure the insulation performance between normal and equipment ground return circuit;Conductor, from the casing first end through setting in casing is used to contact seawater to reach the effect of conductivity and depth water pressure resistance;Electric plug pin, from the casing tail end through setting in casing and with conductor screw connection form internal encapsulation's single-core electrical passage is used for automatically triggering short-circuit signal;When using, through seawater and titanium alloy conductor contact, to reach the purpose of electric plug pin short-circuit;The utility model has the advantages of simple structure, convenient manufacturing, simple operation, avoid the defects in the prior art, suitable for popularization and implementation application;The utility model is suitable for ocean engineering and underwater robot technical field.

Embodiments of the present application provide a key generation system, method, electronic device and storage medium, the system comprises a data processing device, a data acquisition device connected with the data processing device and a plurality of sonar acquisition sensors connected with the data acquisition device, each sonar acquisition sensor is located at different ocean depths, the sonar information corresponding to the organisms located at different ocean depths is acquired through the sonar acquisition sensors located at different ocean depths, the richness and uncertainty of data acquisition are ensured, the generation of the key is based on these data, so that the generated key is more random, the security of the key is improved, the sonar information corresponding to different marine areas is mixed and summarized, and the corresponding key is generated through the key generation formula, the complexity of the key is increased, and the security of the data encryption based on the key is improved.

This invention belongs to the technical field of hydraulic component testing and discloses a deep-sea steady-state performance testing system and method for electromagnetic directional valves. The testing system includes a pressure cylinder, an electromagnetic directional valve, a pressure compensation unit, and a testing unit. The electromagnetic directional valve is housed in the pressure cylinder, which provides simulated pressure at full ocean depth. The pressure compensation unit is connected to the electromagnetic directional valve to compensate for the full-ocean-depth pressure, thus enabling the electromagnetic directional valve to operate at its rated voltage. The testing unit is connected to the electromagnetic directional valve to test the performance of its inlet and outlet ends. The testing unit includes a throttle valve connected to the outlet end of the electromagnetic directional valve to simulate its load. This invention also discloses a testing method for the above-mentioned testing system. This invention solves the problem of the inability to perform full-ocean-depth steady-state performance testing of electromagnetic directional valves.

This invention relates to the field of special cables for marine engineering, and discloses a high-tensile-strength towing cable for marine engineering and its manufacturing method. The cable, from the inside out, comprises a cable core, an inner sheath, a gradient composite tensile-strength layer, a segmented functional sheath, and an outer sheath. The gradient composite tensile-strength layer tightly covers the inner sheath and includes an inner layer and an outer layer. The inner layer is a high-modulus fiber braided layer, and the outer layer is a metal-fiber composite braided layer. The segmented functional sheath covers the gradient composite tensile-strength layer and is divided into two structurally different sections along the cable length: a top section for use near the water surface and a bottom section for use in deep water. The top section adopts a corrugated composite sheath structure, and the bottom section adopts a smooth adhesive sheath structure. The cable provided by this invention achieves a balance of high tensile strength, excellent dynamic bending fatigue performance, and high hydrostatic pressure resistance, solving the problem that single-structure cables cannot adapt to all ocean depth conditions.

The invention discloses a long-period forecasting method for an underwater marine environment. The method comprises the following steps: collecting available marine field observation data, forecasting data and historical data; through sliding window downscaling, the expansion convolution with different expansion rates is used as a multi-scale feature extractor to extract multi-scale water body information; carrying out shore-submergence integrated marine environment space-time intelligent downscaling forecasting by combining a channel attention method and a space attention method; performing ocean depth feature extraction and three-dimensional temperature field feature construction by using an improved PSO-RBF neural network; dynamically constructing an ocean depth direction inversion method by using a convolution auto-encoder; using a transfer learning method to carry out unsupervised learning on the data acquired by the sensor carried by the underwater vehicle; through transfer learning, active correction of an ocean three-dimensional environment temperature and salt field model is realized: forecasting and reconstruction of an ocean three-dimensional temperature and salt field carried by an underwater vehicle are realized, intelligent active correction is carried out, and more accurate ocean environment information is provided for safe navigation of the underwater vehicle; and the navigation safety of the underwater vehicle is ensured.