135 results about "Shallow water area" patented technology

The invention relates to a water depth estimation method of a KAN network based on self-adaption and physical constraint, and belongs to the technical field of remote sensing data processing. Grades are divided according to different water body turbidity, different KAN expert networks are adopted for different grades to learn the complex nonlinear relation between B3 and B4 wave band reflectivity and water depth, and KAN initial model parameters corresponding to different grades of water bodies are obtained through independent self-adaptive training; taking the B3 and B4 wave band reflectivity after normalization processing as input, selecting a corresponding KAN network model according to the water turbidity grade, and outputting predicted water depth; and training the KAN network by using the physical constraint loss function L, and finally extracting an interpretable mathematical inversion formula of the wave band reflectivity and the water depth after the training is completed. Through deep fusion of B3 / B4 waveband spectral characteristics of the KAN, a remote sensing technical solution with high precision, low cost and strong adaptation is provided for dynamic monitoring of the water depth of the shallow water area.

To solve such a problem that cultivation of seaweeds that generate blue carbon is committed to a natural environment which is very limited to shallows where sunlight reaches (=0.2% of the entire sea), the cultivation region may decrease but cannot increase because of installation of a port, tourism development such as a swimming beach, and expansion of commercial facilities, sunlight sometimes cannot sufficiently reach the cultivation region because of weather conditions and the ebb and flow of the tide, which makes the cultivation insufficient, and furthermore, an outbreak of red tides may inhibit algae from growing.SOLUTION: In a blue carbon system, a sealed wooden box is installed to each of the four corners of a wooden frame of a 12 m-sized wooden artificial island unit; a culture soil unit for cultivating algae is placed on the wooden frame; buoyancy of the four sealed wooden boxes and weight of the culture soil unit are controlled to be well balanced; and upper sides of the four sealed wooden boxes are set to be exposed from the water by approximately 30 cm while taking the water depth into account so as to provide a best growth condition of the algae.SELECTED DRAWING: Figure 1

The invention discloses a hydrofoil with an adjustable attack angle for an electric control type boat and a control system, relates to the technical field of attack angle control, is used for solving the hidden danger of grounding caused by insufficient underwater distance and limited lift force compensation during navigation in a shallow water area, and comprises a working condition judgment module, a backstepping fitting module, a risk grade judgment module and an attack angle execution module, the modules are in signal connection; the working condition judgment module obtains a water depth value, a draught value and a water leaving height value through a sensor, calculates a bottom gap and compares the bottom gap with a safe minimum gap, and judges shallow water working condition triggering; the backstepping fitting module calculates the actual lift force by combining the gravity, the buoyancy and the vertical acceleration of the boat body when the shallow water working condition is triggered, and fits the shallow water corrected lift force slope; the risk grade judgment module calculates the residual available lifting force and the lifting force required by lifting, and sets a risk flag bit through a dual-condition criterion; and the attack angle execution module adjusts the attack angle according to the risk flag bit to realize closed-loop control.

The invention discloses a wetland ecological restoration method combined with water ecological restoration monitoring, and relates to the technical field of ecological restoration. The method comprises the following steps: acquiring water depths, nitrogen and phosphorus concentrations, dissolved oxygen and biodiversity indexes of a deep water area, a shallow water area and a coastal zone of a wetland through a sensor network, and generating an initial data set; dividing a wetland region by adopting a K-means clustering algorithm, and constructing a classification region feature model; based on the nitrogen and phosphorus concentration and the water depth of each region, configuring plant species, simulating a water flow gallery and optimizing the pollutant removal efficiency; integrating coastal zone data, optimizing the external pollution interception efficiency by using a genetic algorithm, and obtaining an optimal matching parameter; generating a collaborative ecological restoration framework by iteratively adjusting plant parameters, and establishing a comprehensive numerical evaluation model; and a management data set is generated according to an evaluation result, and quantitative optimization of the wetland ecological restoration effect is realized. According to the method, the pollutant removal efficiency can be effectively improved, and collaborative recovery of ecological functions can be ensured.

The invention provides a parallel hydraulic interconnection damping catamaran which comprises an upper cabin, a hydraulic interconnection suspension and a floating body which are sequentially arranged from top to bottom, and the whole structure is symmetrically distributed in the front view and is trapezoidal in the left view. The hydraulic interconnection suspension forms two side waists of a trapezoid, the upper cabin body is connected with the transverse rocker arm through the hydraulic cylinder set, the front transverse rocker arm is hinged to the longitudinal rocker arm through the radial spherical plain bearing, the longitudinal rocker arm is hinged to the floating body through the radial spherical plain bearing, and the rear transverse rocker arm is directly connected with the floating body. The front hydraulic cylinder set and the rear hydraulic cylinder set stretch out and draw back to achieve pitching motion, the left hydraulic cylinder set and the right hydraulic cylinder set stretch out and draw back alternately to drive the floating bodies on the two sides to move in a staggered mode, heeling of the ship body is achieved, and therefore three-freedom-degree vibration reduction compensation of heaving, pitching and heeling is jointly completed. Through the eight-cylinder interconnected hydraulic loop design and the special connection pair layout, wave multi-degree-of-freedom impact is effectively decoupled, the seakeeping and stability of the ship are remarkably improved, and the device is suitable for special rescue scenes such as shallow water areas and complex channels.

The application discloses a kind of oyster reef repair methods based on plant material construction attachment matrix, it is related to the technical field of coastal zone ecological restoration.The repair method includes the following steps: S1, selecting plant material, the stem of salt marsh plant is the plant material;S2, the plant material is cut into segments and pretreated, and an attachment matrix assembly is prepared;S3, a plurality of the attachment matrix assemblies are tied and connected to form an attachment matrix unit, the attachment matrix unit is arranged in a matrix, is vertically fixed on the surface of a bearing member, and forms a deployable matrix structure unit;S4, the matrix structure unit is laid in the target repair area, and is fixed to the base by anchoring assembly.The plant material of the application maintains structural durability during the oyster attachment period, and is completely degraded naturally in the later period;It reduces the dependence on hard artificial matrix, has a wide source of materials, is easy to construct, has remarkable repair effect, and is suitable for oyster reef repair in intertidal zone or shallow water area and other areas where natural attachment matrix is lacking.

The application provides a large caisson offshore long-distance floating towing multi-tugboat towing marshalling method, which adopts a main tugboat and four auxiliary tugboats to form a formation; the main tugboat is located at the front of the formation to pull the caisson, and the auxiliary tugboats are distributed around the caisson to control the direction and posture of the caisson through pushing or side towing; the method includes four-stage marshalling conversion: from leaving the dock to the shallow water area, the main tugboat is hoisted and towed in cooperation with 2-4 auxiliary tugboats to control the range of the caisson through side towing and pushing; from the shallow water area to the deep water area, the main tugboat is hoisted and towed in the front, one auxiliary tugboat is stably towed in the rear, and the remaining auxiliary tugboats are on standby; from the deep water area to the shallow water area, the main tugboat is hoisted and towed in cooperation with the auxiliary tugboats on both sides through mixed marshalling of side towing and pushing, and the rear auxiliary tugboat is pushed; from the shallow water area to the bridge position, the four auxiliary tugboats are converted to push the caisson on both sides, and the main tugboat is released and leaves; through the multi-tugboat stage-by-stage cooperation, the method realizes the accurate control and safe positioning of the large caisson offshore long-distance floating.

The utility model relates to the technical field of aquatic plant planting, in particular to an aquatic plant planting device. The device comprises a planting rod, a planting unit and a driving unit are arranged on the planting rod, the planting unit comprises a planting rod, a fixed clamping jaw and a rotating clamping jaw, and the rotating clamping jaw is rotationally connected with the fixed clamping jaw through a rotating shaft; the planting unit is connected with the driving unit, the driving unit comprises a driving rod and a spring, one end of the driving rod is connected with the planting rod, and the other end is linked with the rotary clamping jaw through the spring; the spring sleeves the outer side of the driving rod and controls the rotating clamping jaw to release the aquatic plants when resetting. The device ensures consistent aquatic plant planting depth through mechanical linkage, solves the problem of low survival rate caused by uneven artificial planting depth, has the advantages of simplicity and convenience in operation, high efficiency and stable planting precision, and is suitable for large-scale aquatic plant planting in ecological restoration of shallow water areas.

The invention is a traction device for a vehicle, such as a wheel or a track, comprising one or more movable parts, referred to as drive parts, which can change position from a position enabling propulsion on the ground to a position ensuring propulsion in a fluid or on its surface. The main applications are land vehicles capable of traveling on roads as well as on uneven or muddy ground and of traveling on or in water, such as a motor vehicle, a boat capable of navigating shallow waters, a submarine, or an aircraft capable of landing on a beach or on the water.

The utility model belongs to pipeline detection technical field discloses a kind of multifunctional pipeline detection robot, the robot is made of two independent cabin bodies connected by connecting chain, and cabin body adopts light material.It has the advancing function of shallow water area gyro wheel advancing and deep water area fan driving, and video, radar, laser and sonar detection function.In shallow water area, gyro wheel is controlled by independent motor to realize flexible steering;In deep water area, robot relies on cabin body to float, and fan motor drives fan to push robot forward and turn around.Various detection devices work cooperatively, and detection data is transmitted to remote work platform in real time through cable, converted into required data type, to provide comprehensive basis for pipeline condition assessment, effectively improve the efficiency and accuracy of pipeline detection.

The utility model relates to the technical field of shallow water area sampling, in particular to a shallow water area bottom mud sampling device which comprises a sampling pipe, a connecting pipe is arranged at the left end of the sampling pipe, connecting blocks are fixed at the left ends of the sampling pipe and the connecting pipe, sampling rods are arranged in the sampling pipe and the connecting pipe, and sampling holes are formed in the sampling rods. A handle is fixed to the left side of the sampling rod at the left end, a positioning pipe is arranged on the left side of the connecting pipe, two connecting plates are fixed to the left end of the positioning pipe, a measuring disc is arranged at the right end of each connecting plate, a sampling ring is arranged at the right end of the sampling rod at the right side, and a plurality of sampling plates are fixed to the outer portion of the sampling ring. A plurality of groups of sampling baffles are also fixed in the sampling pipe; the handle rotates to drive the sampling rod to rotate, so that the sampling rod bottom connecting block is driven to rotate, the sampling pipe top connecting block is driven to rotate, the sampling ring is driven to rotate, the sampling plate is driven to rotate, the sampling plate and the sampling baffle are tightly attached, and sampling is achieved.

The utility model relates to handheld cleaning equipment, which is applied to pool cleaning, and comprises a main body, which comprises a bottom water inlet, a water outlet and a main flow channel; a power device and a flow guide structure are arranged in the main body; the power device guides water flow to enter the main flow channel from the bottom water inlet, and the water flow flows out from the water outlet after passing through the flow guide structure. The flow guide structure is arranged in the handheld cleaning equipment, the powerful dirt suction capacity can be kept in a shallow water area, and the working efficiency and the cleaning effect are improved.

The application provides an ice layer gas sample collection device and a near-surface oil and gas exploration method. The ice layer gas sample collection device comprises an ice breaking isolation device, a gas collection device and a gas discharge device. The ice breaking isolation device comprises an isolation cover and an ice breaking device. The isolation cover is used for isolating the gas bubble from the surrounding space, the ice breaking device is used for breaking the ice layer of the closed gas bubble, the gas discharge device is used for discharging the gas in the collection device, and the gas collection device is used for collecting the gas in the gas bubble. Compared with the prior art, the ice layer gas sample collection device provided by the application can be used for collecting the gas sample in the ice layer gas bubble, and solves the problem that the gas sample in the lake and marsh area cannot be collected when the northern shallow water area is frozen in winter. The near-surface oil and gas exploration method solves the problems of high difficulty, high cost and poor effect of oil and gas exploration construction when the northern shallow water area is frozen in winter, and provides more reliable physical evidence materials for comprehensive identification and identification of oil and gas geochemical exploration anomalies.

The invention discloses a reservoir capacity curve calculation method based on collaborative operation of an unmanned aerial vehicle and an unmanned ship, and relates to the technical field of water conservancy surveying and mapping. An unmanned aerial vehicle is adopted to carry a laser radar to collect shoreline and shallow water point cloud data; the process of collecting the point cloud data of the shoreline and the shallow water area is preprocessed, and a reservoir capacity curve is calculated. According to the method, the problem of a data blind area caused by terrain shielding, water depth limitation and the like in a traditional method is effectively solved, and the data integrity and the spatial resolution are improved; compared with a traditional manual segmented surveying and mapping mode, the unmanned aerial vehicle and the unmanned ship can work in parallel and efficiently, the measurement efficiency is remarkably improved, the safety risk is avoided, particularly, measurement can be safely carried out after severe weather such as rainstorm and strong wind, and the measurement accuracy is improved. And the operation safety and the data timeliness under special working conditions are ensured.

The application provides a breeding pond bird prevention device, which comprises a mounting framework and a protective net connected with the mounting framework; the mounting framework comprises two first supporting rods arranged in parallel with each other and two second supporting rods arranged in parallel with each other, the lower end of the second supporting rod is connected with an extension rod arranged at an angle with the second supporting rod and extending away from the first supporting rod; the protective net comprises a first net body, a second net body and a third net body connected in sequence; the two first supporting rods are connected through the first net body, the upper end of the first supporting rod and the upper end of the second supporting rod are connected through the second net body, and the upper end of the second supporting rod and the extension end of the extension rod are connected through the third net body. After the device is set, the first net body and the second net body can prevent birds from entering the shallow water area from the lower side of the third net body, the third net body forms a slope structure and covers the shallow water area, and birds can be prevented from standing on the shallow water area, thereby reducing the loss of fish and shrimp caused by bird predation.

The application provides an anti-ice self-climbing floating offshore photovoltaic structure, which comprises a floating structure unit and a photovoltaic array arranged above the floating structure unit; the floating structure unit comprises a floating foundation and a truss structure, and an anchoring system flexibly connecting the floating structure unit and a mud surface of the seabed; a supporting leg part is arranged at the bottom of the truss structure, and the supporting leg part is connected with the upper part of the floating foundation, so that an external part surrounded by the floating foundation forms an anti-ice space, and the cross-sectional area of the top of the floating foundation is larger than the cross-sectional area of the bottom submerged in the sea; the floating offshore photovoltaic structure provided by the application has the characteristics of strong anti-wind and anti-wave and anti-ice capabilities in severe sea conditions, and has the bottom sitting capability, so as to be suitable for shallow water areas with large tidal range and easy beach sitting, improve the reliability of the structure, ensure the stability of the structure movement, and further reduce the risk.

The utility model provides a crawler-type amphibious unmanned vehicle. The floating and crawling dual-mode motion of the aircraft can be reversibly switched, so that the aircraft can work in a deep water area, a shallow water area and a beach. The crawler-type amphibious unmanned vehicle comprises an amphibious carrying platform; the amphibious carrying platform comprises a crawler-type chassis, a platform structure body arranged above the crawler-type chassis, a main propeller arranged at the tail of the platform structure body, a buoyancy adjusting device arranged in the platform structure body and a combined navigation device arranged on the platform structure body. A communication unit and a positioning unit.

The invention relates to the technical field of habitat construction, in particular to a frog habitat construction and recovery method and device based on a fragmentation space. The method comprises the following steps: screening a fragmentation space based on amphibian habitat landscape pattern indexes to determine a restoration area, and determining obstacle points and ecological pinch points of the restoration area; obstacle points and ecological pinch points are considered, the restoration area is shaped, and a land transition area, a shallow water area and a shoal area are constructed; determining a water source communicated with the restoration area; and determining vegetation communities needing to be recovered in the land transition area, the shallow water area and the shoal area based on environmental characteristics and vegetation characteristics. According to the method, on the basis of the characteristics of the fragmentation space, aiming at the inhabiting, foraging, breeding and other requirements of frogs, the fragmentation space is reasonably utilized, the space habitat is restored by determining the restoration area, shaping the area, communicating the water source, determining the vegetation and the like, the biodiversity of the area is improved, and sustainable development is achieved.

The invention discloses a water-pressure-resistant 8MPa fluorinated ethylene propylene insulated longitudinal watertight cable, which belongs to the technical field of cables, and comprises a cable main body, the cable main body adopts a fluorinated ethylene propylene insulating layer, a longitudinal watertight sheath is integrally formed on the outer layer of the cable main body, and a plurality of groups of limiting blocks are uniformly distributed on the outer side of the cable main body in the circumferential direction; a clamping groove matched with the clamping block for use is formed in the outer side of the cable main body in an extrusion manner; by arranging a linkage structure of a movable piece, an extrusion elastic piece, an air storage bag and a backflow block, self-adaptive adjustment of buoyancy along with water pressure is achieved, a mechanical linkage mechanism from water pressure driving to air circulation to finally achieve volume adjustment is formed, and in the laying and diving process, seawater pressure pushes the movable piece to extrude the elastic piece inwards, air in the air storage bag is pressed into the backflow block, and the buoyancy is adjusted. The volume of discharged liquid is increased, buoyancy is gradually increased, bounce and collision in a shallow water area are prevented, the whole structure does not need external power, dependence on a balancing weight and a floating bag is eliminated, and various damage problems caused by buoyancy unbalance in the prior art are solved.

The utility model discloses an underwater sludge tapping device suitable for salvage of a shallow water sunken ship in an inland river, which comprises a sludge tapping device joint externally connected with a water source, a front-end injection pipe is arranged at the outlet end of the sludge tapping device joint, and a nozzle is arranged at the outlet of the front-end injection pipe. The device has the advantages of being beneficial to diver construction in the shallow water area of the inland river, reducing operation risks, being small in dependence on ship machine distribution, guaranteeing perforating efficiency and being low in cost, and can be widely applied to the field of sunken ship salvage.

The utility model discloses an aquatic breeding bottom mud sampling shovel relates to sampling shovel technical field, including length adjusting mechanism, length adjusting mechanism includes telescopic cylinder, the top of telescopic cylinder is provided with telescopic cavity, the upper portion fixedly connected with the baffle of telescopic cavity's inner side wall, the upper surface of baffle is provided with first through -hole, the upper surface of baffle is provided with two symmetrical guide hole, the upper surface rotationally connected with the thread ring of baffle, the inner side wall screw thread connection of thread ring has screw rod. The utility model discloses design structure is reasonable, it can through the cooperation of thread ring, screw rod and guide rod in length adjusting mechanism, can realize sampling shovel overall length's flexible regulation, can be adjusted to the suitable length according to the depth of different breeding pond fast, has realized the purpose of adapting to a variety of water depth environment sampling, solved the problem that the existing sampling shovel is limited in shallow water area operation, and the bottom mud in deep water area is difficult to reach because of fixed structure.

The application relates to a sea area and island remote sensing information change monitoring method and system, and relates to the technical field of remote sensing monitoring, and comprises the following steps: acquiring remote sensing image time series of a target sea area and island, the remote sensing image time series comprising a plurality of remote sensing images, and each remote sensing image having a collection time stamp; collecting tide height information of the target sea area and island corresponding to each collection time stamp and water depth distribution information of a monitoring sea area where the target sea area and island are located; and correcting and processing each remote sensing image according to the tide height information corresponding to each collection time stamp and the water depth distribution information, to generate island boundary profile change time series. The application solves the problem that traditional sea area and island remote sensing monitoring uses a single moment image for analysis, cannot distinguish between real coastline changes and temporary boundary shifts caused by tides, and is interfered by shallow water area seabed reflection, thereby causing boundary extraction precision to decrease, causing large monitoring errors, and failing to meet the application precision requirements of sea area management, coastal zone protection and the like.

The utility model discloses a breeding device and breeding system.The breeding device comprises a device body, the upper portion of the device body is a straight cylinder section used for breeding aquatic products, the lower portion of the device body is a conical cylinder section used for depositing and separating feces, the straight cylinder section is communicated with the conical cylinder section, and the conical cylinder section comprises at least two conical hoppers; and the at least two conical hoppers are flatly laid to form a conical cylinder section. The straight cylinder section has a large internal space, high-density breeding of aquatic products is facilitated, and therefore the breeding cost is improved. The conical barrel section is divided into at least two conical hoppers and can have a large gradient relative to the horizontal plane so as to accelerate downward deposition of excrement of aquatic products, residual feeds and other excrement, so that the excrement separation efficiency can be improved, the height of the breeding device can be controlled, the breeding device can be used in both shallow water areas and deep water areas, and the breeding efficiency is improved. The installation of the breeding device and the application environment of the breeding system are prevented from being limited. The conical barrel section can form a steady flow area, disturbance of aquatic product swimming to water is weakened, and the feces separation effect is improved.

The invention provides a dynamic fusion and visualization method for a water quality pollution prediction result of an inland river basin, and relates to the field of ecological environment emergency management, and the method comprises the steps: respectively substituting hydrogeological conditions and hydrodynamic conditions of a deep water area and a shallow water area of a target water area into a two-dimensional water quality model for calculation, obtaining predicted concentration fields respectively corresponding to the water pollution event in the deep water area and the shallow water area; calculating a credibility weight field of the target water area based on the geographic space feature map; calculating a final predicted concentration field according to the credibility weight field and the predicted concentration field; calculating a prediction uncertainty field according to the difference value of the prediction concentration field in the deep water area and the shallow water area and the credibility weight field; and generating a visual map according to the final prediction concentration field and the prediction uncertainty field, and obtaining a fusion result map for performing simulation visual display on the pollutant diffusion process in the water pollution event. The method can improve the accuracy of pollutant diffusion prediction when an inland river basin sudden water environment event occurs.

The invention relates to the technical field of waste well reconstruction engineering, and provides a method and structure for reconstructing a deep diving space based on a tunnel temporary working well, and the method for reconstructing the deep diving space based on the tunnel temporary working well comprises the steps that a bottom plate is built at the bottom of the existing tunnel temporary working well, and a translation channel between the tunnel temporary working well and a main track tunnel is blocked; dividing the tunnel temporary working well into an underground middle diving area and an underground deep diving area along the depth direction of the tunnel temporary working well; a main body structure side wall is built in the underground submerged area; a cylindrical lining is built in the underground deep diving area, and backfilling reinforcement is conducted on the outer side of the cylindrical lining; the outer surfaces of the main body structure side wall and the cylindrical lining are coated with cement-based capillary crystalline paint, and a water stop strip is arranged at the junction of the underground middle diving area and the underground deep diving area; a support and a wall body are built on the ground of the tunnel temporary working well, and an overground shallow water area is defined by the support and the wall body. Reconstruction from the abandoned working well to the multifunctional deep diving space is achieved through structure transformation and function partitioning.

The invention is a vehicle propulsion device, such as a wheel or track, comprising one or more traction accessories that can change position to transition from a ground propulsion position to a fluid propulsion position, or a fluid propulsion position, or a slippery surface propulsion position. The main applications are land vehicles capable of traveling on roads, uneven or muddy terrain, and navigating on or in water, such as motor vehicles, boats capable of navigating shallow waters, submarines, or aircraft capable of landing on beaches or water.

The invention relates to the technical field of dry dock construction, in particular to a dock entrance cofferdam structure, a dry dock system and a construction method.The cofferdam structure comprises an earth rock cofferdam arranged in a shallow water area, a prefabricated caisson arranged in a deep water area and a dock gate, one end of the earth rock cofferdam is connected with a revetment, and the other end of the earth rock cofferdam is connected with the prefabricated caisson; the end, away from the earth rock cofferdam, of the prefabricated caisson abuts against the dock gate, the end, away from the prefabricated caisson, of the dock gate abuts against the retaining dam, the earth rock cofferdam is used in a shallow water area to reduce the cost, the prefabricated caisson is used in a deep water area to reduce the amount of earth and stones in the deep water area, the cost is reduced, and the ecological influence is relieved. The original dock gate is utilized, normal use of the dock entrance is achieved by opening or closing the dock gate, the requirement for recovery after the dock entrance is widened is met, further, the waterproof curtain blocks the water seepage path of water in the earth rock cofferdam, the waterproof effect of the earth rock cofferdam is improved, and the water stop performance of the cofferdam structure is guaranteed.

The utility model provides a length -adjustable marine springboard relates to marine springboard technical field, including the hull, one end of hull rotatory arrangement has the springboard, the upper surface both sides of hull all install the side plate, the upper surface one side of each side plate all installs the hydraulic oil jar, the upper surface one side of each side plate still installs the support rod, the top of support rod is provided with the pulley, the output of hydraulic oil jar is connected with the connecting rope, the bottom of springboard is provided with the extension mechanism. The utility model discloses through the synchronous controller control two synchronous motors and carry out the synchronous rotation, can extend the support plate to the outside of springboard, the overall length of springboard is extended, makes the hull with the shore can have more far berthing distance, when operating more simple in berthing, when the shore of berthing shallow area is longer, springboard also can have enough long distance, more safe in the use process, the more wide application range.