77 results about "Ocean exploration" patented technology

The invention discloses a submarine topography reconstruction system and method based on optical mobile measuring and scanning, and relates to the technical field of ocean exploration, and the system comprises the following units: an image collection unit, which is used for coordinating the emission of 532nm pulse laser and the collection of a gating camera image through a synchronous sequential circuit, a triangulation measurement optical structure with separated emission and reception is adopted, and a submersible can be carried for mobile measurement and scanning; the system calibration unit is used for carrying out joint calibration on camera parameters and a laser plane so as to determine system calibration parameters, so that the spatial position of a laser stripe accurately corresponds to the actual coordinate of the target surface; and the image processing unit is used for preprocessing the image acquired by the system and further extracting the coordinates of the center line of the laser stripe in the preprocessed image. According to the invention, adjacent splicing can be carried out through continuously collected laser stripe images to construct two-dimensional submarine landform information, and three-dimensional reconstruction of submarine topography can be carried out by using generated point cloud data.

The invention relates to the technical field of underwater acoustic engineering and ocean exploration, in particular to a multi-channel underwater acoustic signal transmitting and measuring system and a signal processing method, which are used for solving the problems that the existing multi-channel underwater acoustic signal processing generally depends on fixed threshold detection or simple time sequence alignment, and the signal processing efficiency is low. The problem that residual vibration, local noise abrupt change or multipath reverberation is easily misjudged as an effective first arrival signal in a complex underwater environment due to the fact that the influence of the physical response characteristic of a transducer on emission time calibration is not considered and effective verification on whether a candidate arrival structure accords with a sound wave propagation physical rule is lacked is solved. According to the invention, a multi-channel energy time sequence and hydrophone space geometrical relationship is fused through an underwater sound propagation initial physical judgment module, a judgment mechanism is constructed based on distance-time consistency of sound propagation, and self-consistent verification is realized by combining a cross-channel arrival sequence and sound velocity constraint. And the accuracy, the robustness and the physical interpretability of the judgment of the effective launching time of the underwater sound are obviously improved.

The invention discloses a water-air cross-medium unmanned aerial vehicle and a flight method, and belongs to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle comprises a sealed cabin body composed of an upper cabin body and a lower cabin body, symmetrical vehicle arms, a tail steering engine, a rudder, a left steering engine, a right steering engine, an elevator, an underwater propeller and various types of sensors (a binocular camera, a sonar, a water quality sensor and the like). Air flight is achieved in a four-rotor mode, and underwater sneaking is driven in a fixed-wing mode. The control method comprises the stages of takeoff, air flight, air-water transition (a water surface hovering automatic switching mode), underwater navigation, water-air transition and landing, and complete-process autonomous cross-medium conversion is achieved by combining layered rate descent and multi-sensor fusion judgment states. The device has the advantages of being compact in structure, reliable in sealing and accurate in cross-domain control, and is suitable for ocean exploration, environment monitoring, underwater reconnaissance and other scenes.

The invention relates to the technical field of ocean detection equipment, and particularly provides an ocean laser radar system and a seawater multi-parameter detection method. The system comprises a laser emission subsystem, an optical receiving subsystem and a signal acquisition and control subsystem. The laser emission subsystem can emit multi-wavelength pulse laser to seawater; the optical receiving subsystem adopts a double-receiving telescope structure, respectively receives scattering and fluorescence signals with different properties, and realizes multi-channel signal separation through light splitting, light filtering and polarization light splitting elements; and the signal acquisition and control subsystem realizes synchronous acquisition and processing of multi-channel data. The system can synchronously invert water optical parameters, water particulate matter depolarization ratio and color ratio, chlorophyll concentration, suspended load concentration and other multi-parameter profiles, and is suitable for marine environment unattended monitoring of a fixed platform and a mobile platform.

The invention relates to the technical field of underwater acoustic communication, in particular to an underwater acoustic communication system and method based on environmental parameter sensing and adaptive matching, and the system comprises an environmental parameter sensing module, a local environmental resource library, a parameter matching and algorithm selection module, an adaptive algorithm optimizer, a communication processing module, and a transmit-receive transducer. Key environment parameters such as submarine topography and temperature-salinity-depth are obtained in real time, a preset optimal algorithm is called through parameter matching or an algorithm adaptive to a new environment is generated in real time, and the defects that the performance of a fixed algorithm is suddenly reduced when the environment changes and traditional adaptive adjustment response is lagged are fundamentally overcome. The reliability, robustness and intelligent level of communication in a complex underwater environment are improved, and high requirements of scenes such as ocean detection and underwater robot communication on communication performance are met.

The invention discloses a flexible deep sea pressure sensor, a corresponding fully-integrated temperature-depth sensing system and a temperature compensation algorithm. The invention relates to the technical field of ocean detection sensors, and the structural design of the flexible deep sea pressure sensor constructs a composite structure with high-pressure sensitivity and mechanical flexibility through the collaborative optimization of multiple parameters of LIG (laser-induced graphene) thickness, cross-linking agent proportion of PDMS (polydimethylsiloxane) and packaging thickness. And the contradiction between the sensitivity and the measuring range of the flexible material in the deep sea high-pressure environment is broken through. A fully-integrated temperature-depth sensing system adopting the pressure sensor and a corresponding temperature compensation algorithm also have the same technical effects.

The invention discloses a mud self-circulation cooling system for drilling of a marine exploration high-temperature well, which comprises a front filter unit, a cooling unit, a seawater circulation unit and a monitoring unit, and is characterized in that the front filter unit adopts a parallel double-pipeline design with an electric valve to realize non-stop switching; the cooling unit is composed of a plurality of box bodies connected in series, and a U-shaped connecting piece of the slurry coil pipe is externally arranged to facilitate maintenance. The monitoring unit collects data through a temperature sensor, a pressure sensor, a flow sensor and a leakage sensor, the cooling temperature is adjusted by controlling the rotating speed of the sea water pump after the data are analyzed through the processing module, and a filtering pipeline is automatically switched. The problems that a traditional cooling mode is high in pollution risk, uncontrollable in temperature and difficult to maintain are solved, and the device has the advantages of being environmentally friendly, accurate in control and capable of achieving online maintenance.

The invention belongs to the technical field of ocean exploration, and particularly relates to an ocean exploration wave field reconstruction method based on dictionary learning, and the method comprises the steps: carrying out the preprocessing of original wave field data, and obtaining the preprocessed wave field data; separating the preprocessed wave field data into non-overlapping block sample matrixes; converting all block sample matrixes into a sample vector set; selecting a training sample set from the sample vector set; adopting the training sample set to construct a double-sparse dictionary model; iteratively updating the double sparse dictionary model by adopting an alternate optimization mode to obtain a final sparse dictionary and a sparse coefficient matrix corresponding to the sparse dictionary; and carrying out sparse reconstruction on the actual observation wave field by adopting the final sparse dictionary and the sparse coefficient matrix corresponding to the final sparse dictionary. The method has high adaptability to noisy or under-sampled wave field data, and a continuous and high-fidelity wave field structure can still be recovered even under the condition that data acquisition conditions are limited.

The invention discloses an underwater SLAM method and system combining a region-level descriptor and LSH retrieval, belongs to the technical field of autonomous navigation of underwater robots, and solves the problems that track plotting errors can be accumulated along with time due to particularity of an underwater environment, and a traditional SLAM method lacks an effective position sensing mechanism to suppress the drift, so that the navigation accuracy is poor. And meanwhile, an effective preprocessing mechanism for improving the image quality is lacked. The method comprises the following steps: acquiring and preprocessing a polar coordinate image; acquiring a prior pose of a current key frame, inputting the prior pose to a position sensing ICP, performing scanning matching on point clouds of adjacent key frames in sequence, and establishing a sequence constraint relation; extracting an occupied area from the historical key frame point cloud, constructing an area descriptor, carrying out neighbor retrieval, screening candidate key frames, verifying matching, and generating an effective loopback constraint; and constructing a factor graph, performing global graph optimization, accumulating and updating environment point clouds, and generating an underwater environment map. The method is suitable for the underwater robot in the scenes of ocean exploration, environment monitoring, search and rescue operation and the like.

The invention belongs to the technical field of marine exploration equipment, and discloses an acquisition and transmission module and an offshore seismic exploration acquisition cable using the same. The acquisition and transmission module is embedded in a reserved window of an acquisition cable, and comprises two waterproof end blocks which are in fusion connection with a cable core wire and a cable sheath layer and are used for axial limiting and end sealing; the protective shell is internally provided with a space for accommodating the acquisition control circuit board; the two fixing end caps are used for fixing the shell; the limiting assembly is composed of a lining ring, a limiting block and a limiting supporting column and connected between the waterproof end block and the fixing end cap. The acquisition and transmission module fills gaps of all parts through an internal adhesive structure so as to be solidified into a whole, and the exterior is integrally wrapped by an injection molding protective layer. According to the acquisition and transmission module, the problems that the module is easy to loosen, poor in sealing and difficult to maintain in a complex marine environment are solved, and the stability and reliability of seismic data acquisition are remarkably improved.

The application discloses a trimming device for underwater glider and a use method thereof, and belongs to the technical field of ocean exploration. The trimming device comprises a base, a support shaft, a weighing sensor, a torque sensor and a supporting component. The two end portions of the support shaft with the horizontal axis are installed on the base through the shaft seat. The weighing sensor is installed on the two end portions of the support shaft and is used for detecting the downward pressure of the end portions of the support shaft. The torque sensor is installed on the end portion of the support shaft and is used for detecting the torque of the support shaft. The supporting component is fixedly installed on the support shaft and is provided with a supporting portion which is used for supporting the underwater glider with the axis parallel to the axis of the support shaft. The trimming device realizes high accuracy, high efficiency and multi-dimensional adjustment capacity by means of the introduction of the sensor technology. The trimming device has the characteristics of simple structure, high flexibility and easy maintenance, and thus becomes a practical solution scheme meeting the trimming requirements of the underwater glider.

The invention discloses a non-pairing underwater image enhancement method based on structure perception multi-mode fusion, and belongs to the technical field of underwater image processing. Comprising the following steps: constructing a generator network based on a U-shaped Transform; training a generator network by using a non-paired data set, and carrying out combined constraint by using generative adversarial loss and multi-scale Patch NCE comparison loss; and performing channel splicing on a to-be-processed underwater RGB image, the space depth image and the structure prior image, constructing a multi-modal input tensor, then feeding the multi-modal input tensor into the trained generator network, and outputting an enhanced underwater image through forward propagation. According to the method, the depth map and the structure prior map are introduced, the perceptual ability of the network to the geometric contour is enhanced, global modeling and non-pairing comparative learning of Transform are combined, high-fidelity restoration of the high-turbidity underwater image is achieved under the condition that paired data is not needed, and the method can be widely applied to the fields of ocean exploration, underwater monitoring and the like.

The application belongs to the technical field of ocean exploration, and specifically discloses a seabed bottom type in-situ detection device and method. The device comprises an upper computer, a transmitter and a receiver. At the transmitter end, the application modulates selected initial identification information symbols into a low-frequency carrier frequency band in a multi-band linear frequency modulation manner to generate a low-frequency modulated wave, and then modulates the low-frequency modulated wave into a high-frequency carrier in an amplitude modulation manner to form a narrow underwater acoustic beam. At the receiver end, because different types of seabed have different self-demodulation capabilities and underwater sound dissipation characteristics at different bit positions of the identification information symbols, T-BOK demodulation is realized through low-frequency echo reception to obtain a three-state identification code, and the delay information of each bit of the three-state identification code is recorded. Through the three-state identification code demodulated by the low-frequency echo, the delay information of each bit of the three-state identification code, and a three-state identification code codebook generated in advance, the seabed bottom type and distribution characteristic parameters are obtained.

The application discloses a seabed topography and geomorphology reconstruction system and method based on optical mobile scanning, and relates to the technical field of ocean exploration. The system comprises the following units: an image acquisition unit, which is used for coordinating the emission of a 532nm pulsed laser and the acquisition of a gated camera image through a synchronous timing circuit, and adopting a triangulation optical structure with separated emission and reception, and can be carried on a submersible for mobile scanning; a system calibration unit, which is used for jointly calibrating camera parameters and a laser plane, so as to determine system calibration parameters, and make the spatial position of a laser stripe accurately correspond to the actual coordinates of a target surface; and an image processing unit, which is used for pre-processing images acquired by the system, and further extracting the center line coordinates of a laser stripe in the pre-processed images. The application can not only perform adjacent splicing through continuously acquired laser stripe images, and construct two-dimensional geomorphology information of the seabed, but also perform three-dimensional reconstruction of seabed topography by using generated point cloud data.

This invention discloses an underwater fail-safe shut-off valve, relating to the field of marine exploration and drilling equipment technology. It includes a actuator assembly and a preparation valve assembly. The actuator assembly includes a piston assembly that divides the interior of the actuator assembly into independent drive chambers and balance chambers, which are hydraulically connected externally. The piston assembly is driven to one end of the valve stem. A force-applying component is disposed between the piston assembly and the inner wall end face of the actuator assembly. The preparation valve assembly includes an actuator that controls the opening and closing of the valve via the piston-driven actuator. After a hydraulic system failure, the piston assembly is no longer compressed by hydraulic oil. Under the elastic drive of the force-applying component, the piston assembly pushes the hydraulic oil in the drive chamber into the balance chamber and drives the valve stem, causing the preparation valve assembly to close, thereby achieving fail-safe shut-off of the underwater shut-off valve.

This invention discloses an improved YOLO26 underwater target detection method with joint image enhancement. A dedicated underwater image enhancement unit is designed as a pre-task, strengthening image feature representation through a dynamic histogram stretching module and an attention mechanism to output high-quality enhanced images. The YOLO26 network structure is improved by designing a multi-frequency feature reconstruction module and an optimized detection network, achieving collaborative optimization of upstream and downstream tasks between the enhancement and detection units. This method optimizes image quality through enhanced downsampling and upsampling paths. The improved YOLO26 detection network achieves efficient detection and accurate localization of large, medium, and small underwater targets. While ensuring real-time performance and lightweight design, it significantly improves target detection performance under complex underwater conditions, adapting to underwater visual perception scenarios such as underwater search and rescue, marine exploration, and underwater equipment inspection. It provides a practical, generalizable, and easily deployable technical solution for underwater intelligent visual inspection.

The invention discloses a folding wing air-drop underwater glider based on a high-speed cross-medium water entry buffer device, and relates to the technical field of ocean exploration equipment. The underwater glider mainly comprises a hydrodynamic profile unit, a rapid retarding unit arranged at the tail and glider wing stretching devices located on the two sides. According to the rapid retarding unit, an opening and closing buckle is controlled through a steering engine to lock or release an unhooking pin shaft connected with the parachute, rapid separation of the parachute is achieved through the ejection effect of a high-elasticity element after the parachute enters water, and water entering impact is effectively reduced. According to the hang glider stretching device, the wings are restrained to be in a folded state through water-soluble fiber pieces, after the wings are dissolved in water, transmission racks are pushed through pre-compression springs, then wing changing gears connected with the wings are driven to rotate, and automatic unfolding and self-locking of the wings are achieved. The underwater glider has the advantages of being simple and light in structure, high in space utilization rate, good in underwater buffering effect and the like, and the problems that impact is large and carrying space is limited during air-drop laying of a traditional underwater glider are solved.

The application discloses a hydrology and water resource survey device and method, relates to the technical field of ocean exploration sampling, and comprises a steel cable, a support structure, a liquid taking mechanism, a liquid containing mechanism and a moving mechanism. The liquid taking mechanism comprises a vertical slide and a sliding block. The liquid containing mechanism comprises multiple groups of sample tanks. The moving mechanism comprises a cable holding block. In the application, as the device sinks, the cable holding block in the moving mechanism rotates while moving downward, so that the sliding block is lifted upward through a transmission structure. When the sliding block contacts a pressing plate, the sliding block stops moving, and a male quick connector is connected with a female quick connector, so that seawater is input into the sample tank. Since the steel cable has a standard specified spiral angle, the sliding block is lifted to a specified height when the cable holding block rotates a specified number of turns by adjusting the gear transmission ratio, so that the device samples after moving downward to a specified depth, and the sampling depth of the sample meets the actual setting.

The invention relates to the field of marine exploration mechanical equipment, in particular to an underwater rock core drilling debris efficient discharging device and method.The device comprises a power head, a drill rod, a connector, a drill bit and a diamond matrix, the power head is communicated with a connecting pipe, the drill rod is of a hollow structure, and a groove is formed in the side, close to the drill rod, of the drill bit; a rock core channel is formed in the side, away from the drill rod, of the drill bit, an annular cylinder is coaxially and fixedly connected to the outer side wall of the drill bit, an annular cavity is formed in the annular cylinder, a plurality of water outlet holes are formed in the side, away from the drill bit, of the outer side wall of the annular cavity, a plurality of through openings are formed in the side wall of the groove and communicate with the annular cavity, and a spiral guide rail is arranged on the outer side wall of the annular cavity in the circumferential direction of the annular cavity. The annular cavity with the spiral flow guide groove and the spiral guide rail are arranged on the outer side of the drill bit, high-pressure water flow is introduced in combination with the hollow drill rod, the water flow washes chippings through the water outlet hole, meanwhile, the spiral guide rail rotates to push waste water containing chippings to rise, and the problems that chippings are difficult to discharge and the drill bit is prone to being stuck in the deepwater environment are solved.

The present application belongs to the technical field of cross-medium unmanned vehicles, and particularly relates to a water-air cross-medium running unmanned vehicle, which forms a smooth transition fluid channel through a hemispherical cover, a cylindrical cabin, an annular duct and a conical bottom cylinder, and solves the problems of low power efficiency, large flow resistance, attitude instability and poor reliability in the prior art. The head part is integrated with a detection and rudder control system, and the open rudder cabin can dynamically adjust the water volume to optimize the center of gravity; the middle part adopts an annular duct integrated constraint propeller flow field to improve water-air thrust efficiency, and the center cabin body is integrated with a core control module; the tail part is convergent design to optimize the fluid trajectory. The modules are quickly and reliably connected through piston sealing and rotary buckles. The present application significantly reduces the cross-medium resistance and water outlet time, ensures the smooth attitude conversion, and greatly improves the maintenance convenience and system reliability due to the modularization and high sealing design, and is suitable for various cross-domain operation scenes such as ocean exploration, emergency search and rescue, etc.

The invention provides an intelligent attitude control method. The control performance of an underwater robot is improved by utilizing a machine learning technology. The method comprises the following steps: acquiring attitude data in an underwater environment through a sensor, such as an attitude angle, a linear velocity and an angular velocity; inputting the attitude data into a machine learning model for analysis and learning; predicting and optimizing an attitude control command of the underwater robot by using the machine learning model; and transmitting the optimized attitude control command to an actuator of the underwater robot so as to realize accurate attitude control. In the method, a machine learning model is trained through a supervised learning algorithm or a reinforcement learning algorithm so as to optimize the prediction and adjustment process of an attitude control command according to historical data and feedback information. The historical data comprises sensor data and corresponding attitude control commands, and the feedback information comprises the attitude, the position and the sensor data of the underwater robot. By continuously updating a machine learning model, the method can adapt to changes of different underwater environments, and attitude control targets such as energy consumption, stability and maneuvering characteristics are optimized. The intelligent attitude control method has the following advantages: the attitude control precision and stability of the underwater robot are improved; the system adapts to changes of different underwater environments; the control performance is continuously improved through learning and optimization of a machine learning model; the device is widely applicable to the fields of ocean exploration, underwater pipeline maintenance, seabed resource development, diving operation and the like.

The application provides a cross-domain vehicle and a navigation method, and belongs to the technical field of cross-domain vehicles.The vehicle comprises a catamaran main body, a composite propulsion module and a semi-submersible floating body structure, the catamaran main body is provided with an underwater propeller, and the catamaran main body is connected with the semi-submersible floating body structure;the top of the semi-submersible floating body structure is provided with a foldable rotor system, the foldable rotor system is connected with a rotor engine, and is retracted and closely attached to the vehicle body in the water entry or underwater stage, so as to reduce fluid resistance; the composite propulsion module comprises a front anti-torsion ducted propeller and a tail pitch ducted propeller which are installed on the semi-submersible floating body structure.The application effectively solves the problems that the traditional water navigation tool and the aerial vehicle have single functions and are difficult to efficiently cooperate in a complex environment, realizes water-air amphibious autonomous switching and attitude stable control, and provides a multifunctional and efficient operation platform for the fields of ocean exploration, emergency rescue and cross-domain logistics.

The utility model relates to a cable special for ocean exploration seismic source acquisition, and belongs to the technical field of cables. According to the technical scheme, a modified high-hardness PP insulating material (2) is extruded outside a tin-plated copper alloy conductor (1) to form a copper alloy wire core with an insulating layer, two copper alloy wire cores with insulating layers are stranded to form a pair of stranded wire cores, an aluminum-plastic composite film shielding layer (3) is lapped outside the stranded wire cores, a tin-plated copper wire drainage wire (4) is synchronously arranged on the aluminum-plastic composite film shielding layer, and the tin-plated copper wire drainage wire (4) is wound on the aluminum-plastic composite film shielding layer (3). A shielding twisted pair is formed; an elastomer inner sheath is extruded outside the shielding twisted pair, and a polyurethane outer sheath is extruded outside the elastomer inner sheath. The tensile strength of the cable is improved, and the risk of conductor fracture caused by external force is reduced; the insulating property of the cable is improved, the scratch and puncture resistance is enhanced, and the safe operation of the cable in a severe environment is ensured; external electromagnetic interference is effectively isolated, the accuracy and stability of signal transmission are improved, and the cable has excellent waterproof, dustproof and wear-resistant properties.

The application discloses a seabed node laying and recovering system and method based on AUV deep-sea in-situ supply, and belongs to the technical field of marine exploration equipment. The load and energy of AUV are limited, and AUV can only carry a small amount of nodes at a time, and needs to return to the mother ship frequently for replenishment and charging after laying, thereby leading to low operation efficiency. The application comprises an underwater robot and a recovery cabin, the recovery cabin is arranged at a specified position on the seabed and is used for storing functional nodes, and the recovery cabin is provided with a charging device and can charge the underwater robot; the underwater robot comprises a robot body, a mechanical claw and a node storage cabin, the node storage cabin is arranged below the robot body and is used for storing nodes to be laid, the node storage cabin is provided with a hatch, the mechanical claw is arranged in the node storage cabin and is used for grabbing the functional nodes and laying the functional nodes at the specified position through the hatch; after the underwater robot completes laying of the functional nodes at a time, the underwater robot returns to the recovery cabin to replenish the functional nodes, so that the next node laying can be performed.

The application belongs to the field of ocean exploration technology and equipment, and discloses a deep-sea laser-induced plasma photo-acoustic combined detection system and method. The application realizes qualitative and quantitative analysis of target ore elements by collecting and analyzing characteristic spectral signals of plasma. The application realizes millimeter-level resolution thickness measurement by using high-frequency (up to 10MHz level) characteristics of reflection signals of wideband, short pulse sound waves excited by plasma expansion in rock layers. The excitation, collection and processing units of light and sound signals are highly integrated in a single system, and finally, in-situ, synchronous, same-point and high-precision integrated detection of seabed ore composition and thickness in deep-sea environment is realized. The system has high integration degree, good miniaturization and platform adaptability, high detection efficiency, low cost and good reliability, and has high-precision composition analysis and high-resolution thickness detection capabilities, and realizes real in-situ synchronous detection.

The invention discloses a UUV intelligent bionic cooperative positioning method based on an artificial chicken flock algorithm, and belongs to the field of multi-UUV cooperation. The problem that in an existing single UUV or simple cooperative system, geomagnetic matching depends on a complete magnetic field map, but only sporadic known points exist in an actual task area, so that the matching precision is insufficient or the applicability is limited is solved. The method comprises the steps that a plurality of UUVs are regarded as artificial chicken flocks, and the state of each UUV is expressed as a position vector; initializing artificial chicken flock parameters, and setting a target function and a precision requirement; iteratively updating UUV positions through an artificial chicken flock algorithm, including a chasing behavior, an aggregation behavior, a dispersion behavior and an escape behavior, to minimize a fitness function and realize cooperative positioning of a UUV group; and when the UUV approaches the target position, switching to a simulation collaborative navigation mode, and correcting the accumulative error of the inertial navigation system by using an artificial chicken flock algorithm. The method is mainly used in the large-scale ocean exploration field.

The utility model belongs to the field of marine science detection equipment, and particularly relates to a releasing device for marine detection equipment. Comprising a swing arm assembly, a telescopic arm assembly and an ocean exploration equipment butt joint assembly, and further comprises a rotary base assembly for supporting the swing arm assembly, and the rotary base assembly comprises a machine base, a hydraulic pump, a bell jar, a motor, a hydraulic motor, a speed reducer, a small gear, a rotary bearing and a rotary machine base. According to the utility model, the rotary base is additionally arranged, so that the omnibearing laying and recovery of the ocean detection equipment are realized, and the flexibility and the application range of the equipment are improved.

The utility model relates to a loadable multi-probe ejection device which is suitable for ocean exploration. The existing in-situ test probe injection operation depends on large-scale equipment, and the operation time is long. The device is carried on a ship through an ejection operation module and comprises a battery module, a data storage module and a plurality of ammunition modules. The launching module, the ammunition module and the high-speed probe realize ejection and data acquisition through a specific structure and connection. During launching, the electric cylinder is driven, the clamping jaw and the spring are matched to realize high-speed probe launching, and load rejection and automatic filling can be realized after launching. The ammunition module is in an ammunition drum shape and can be pushed out and filled through a rotary spring or a motor. The device has the advantages of convenience in operation, high speed, high universality, excellent data acquisition and transmission, efficient and reliable automatic filling and the like.

The invention belongs to the technical field of ocean exploration, and particularly discloses a deep seawater fidelity sampling device and method, and the device comprises an overwater control unit, a cable, an underwater sampling unit and an underwater robot. The underwater sampling unit comprises a sampling container, a sample inlet, an electromagnetic valve, a one-way valve, a cable, a sample discharge control valve and a sample outlet. And the overwater control unit remotely controls the on-off action of the electromagnetic valve through a cable. The method comprises the steps that the underwater robot carries the underwater sampling unit to dive to a target point; the overwater control unit sends an instruction to the electromagnetic valve through the cable, and the electromagnetic valve opens the sample inlet; closing the electromagnetic valve to seal the sample; and finally recovering the sample. Accurate positioning of a sampling point and remote control operation of the platform are realized, the in-situ pressure of seawater can be effectively maintained, and the fidelity of a sample is remarkably improved.

The utility model provides a multi-beam rapid installation device assisted by an electric hoist, which belongs to the field of ocean exploration and comprises a base, a stand column is arranged in the middle of the top of the base, and an installation seat is arranged at the top of the stand column. The bottom end of a crane steel wire rope is woven into a ring through a first U-shaped buckle, the ring is internally matched with a second U-shaped buckle to be connected with a U-shaped lifting point at the top of a sounding rod in a staggered mode, an electric hoist body on an installation base drives the crane steel wire rope to move, and the crane steel wire rope is matched with the first U-shaped buckle, the second U-shaped buckle and the U-shaped lifting point to drive the sounding rod to move. At the moment, an operator pulls the traction steel wire ropes on the two sides of the mounting ring, so that the direction of the sounding rod is controlled, and hidden dangers and inconvenience caused by the traditional carrying and mounting process are avoided.