2247results about "Buoys" patented technology

A drifting buoy trajectory prediction method based on a hybrid neural network prediction model, includes: S1, obtaining marine environmental data and historical trajectory data of a drifting buoy; S2, performing preprocessing on the marine environmental data and the historical trajectory data to obtain input data configured to predict northward and an eastward velocities of the drifting buoy; S3, inputting the input data into the hybrid neural network prediction model to obtain predicted values of the northward and eastward velocities; S4, calculating latitude and longitude coordinates of a trajectory point of the drifting buoy based on the predicted values of the eastward and northward velocities; and S5, predicting, by repeating the step S1-S4, latitude and longitude coordinates of trajectory points of the drifting buoy at multiple time points to obtain a sequence of trajectory point coordinates to thereby achieve trajectory prediction of the drifting buoy over a target future period.

The invention discloses an on-site monitoring system for the performance of an elastic loose type anchorage system suitable for deep-sea buoys, and particularly relates to the field of deep-sea monitoring. The on-site monitoring system auxiliary comprises a central processing module, wherein the output end of the central processing module is separately connected with an information display module,an information storage module, an auxiliary recovery module and a driving module, and the input end of the central processing module is separately connected with a power supply module, a monitoring module, a correction module and a positioning module. According to the on-site monitoring system for the performance of the elastic loose type anchorage system suitable for the deep-sea buoys, the auxiliary recovery module is arranged, air bags are installed at a plurality of node positions on the anchorage system, a booster pump in a pressurization unit is used, outside air is conveyed into a floating ball unit through a pipeline unit, so that the retractable air bags are enabled to bulge upwards to float, the whole anchor system is directly floated in sections, people conveniently recycle theanchorage system greatly, the workload during the recycling process is reduced, and the practicability is high.

A water sensor buoy for use in a water environment including a main buoy assembly and a sensor package. The assembly includes a buoy hull, a data processing and control unit, a data transmission unit, and a power source. The sensor package is in removable engagement with the assembly. The sensor package includes a sensor housing in removable engagement with the buoy hull, and a water sensor in removable electronic communication with the data processing and control unit and the power source, and configured to sense an attribute of the water environment. The buoy has a watertight seal between the buoy hull and sensor housing, and an electrical conduit. The conduit is engageable with the data processing and control unit and the power source with the sensor housing being engaged with the buoy hull, and disengageable upon the sensor housing being disengaged from the buoy hull.

The invention discloses a large-scale ocean data buoy safety monitoring system and method based on multi-source fusion, and relates to the technical field of buoy monitoring. Buoy equipment operation parameters, ocean environment data and surrounding ship dynamic information are synchronously acquired through a buoy body sensor group, an environment monitoring unit and a ship identification module; time-frequency domain feature extraction and anomaly detection are carried out on the collected data, and a collision risk dynamic evaluation model is constructed in combination with ship trajectory prediction; establishing an equipment health, environment interference and ship threat fusion evaluation system, and performing risk grade division in combination with real-time monitoring data and a historical database; and generating early warning information based on the risk level, and automatically triggering an equipment maintenance instruction and a ship collision avoidance alarm. The method adapts to ship variable-speed steering scenes, threshold values are dynamically adjusted, and adaptability and analysis accuracy of the system are improved.

The invention relates to the technical field of environment monitoring, and discloses a radio-based environment monitoring method and system, and the method comprises the steps: deploying an ocean buoy integrated with a plurality of parameter sensors, and detecting the water temperature, salinity, dissolved oxygen, pH value and illumination intensity in real time; transmitting the data detected in real time to a shore-based receiving station by using a radio communication module; performing drift correction and noise filtering on data transmission detected in real time; performing data fusion analysis according to the mutual relation among different data, and generating a marine environment assessment report; and abnormal early warning information is generated according to the marine environment assessment report and is fed back to a monitoring center in real time through radio. According to the invention, through integration of various parameter sensors, comprehensive monitoring of multiple parameters of the marine environment is realized, and the accuracy and reliability of monitoring are improved.

The invention discloses a water quality monitoring device and a monitoring method thereof, and relates to the technical field of water quality monitoring, the water quality monitoring device comprises a supporting plate, a buoyancy mechanism and a driving paddle, the buoyancy mechanism is arranged below the supporting plate, the driving paddle is installed on one side of the buoyancy mechanism, the water quality monitoring device further comprises a multi-parameter lifting water quality detection mechanism and a self-cleaning mechanism, the multi-parameter lifting water quality monitoring mechanism comprises a multi-parameter sensor group and a swing type filtering mechanism for protecting the multi-parameter sensor group, and the swing type filtering mechanism swings back and forth in the lifting process of the multi-parameter lifting water quality monitoring mechanism. Various water quality data can be monitored by means of the multi-parameter sensor group, after monitoring is completed every time, the swing cylinder swings in a reciprocating mode, the spray head is linked to wash the multi-parameter sensor group, meanwhile, the soft brush is linked to ascend and descend, the sensors are wiped, cleaning is achieved, and the influence on the accuracy of next water quality data collection is reduced.

The present invention relates to a wave energy power generation buoy with a variable length and angle damping plate and its control method, belonging to the technical field of wave energy power generation buoys. It includes a main floating body, an air turbine and a damping plate. The main floating body is a hollow rear-bent pipe structure. The air turbine is installed at the air outlet at the top of the rear end of the main floating body. The damping plate is installed at the rear end of the main floating body. The damping plate includes an L-shaped fixed plate, a horizontal telescopic plate, a vertical telescopic plate and an inclined movable plate. The L-shaped fixed plate is fixedly connected to the main floating body. The horizontal telescopic plate is horizontally slidably connected to the horizontal side plate of the L-shaped fixed plate. The vertical telescopic plate is vertically slidably connected to the vertical side plate of the L-shaped fixed plate. The upper and lower ends of the inclined movable plate are respectively movably connected to the vertical telescopic plate and the horizontal telescopic plate. The L-shaped fixed plate is provided with a first telescopic driving mechanism for driving the horizontal telescopic plate to move back and forth and a second telescopic driving mechanism for driving the vertical telescopic plate to move up and down. The present invention can improve the wave energy conversion efficiency.

The invention discloses a deep-sea self-expanding horizontal array acoustic subsurface buoy, which relates to the field of deep-sea underwater acoustic detection and comprises an expanding platform arranged at the top of the acoustic subsurface buoy, a subsurface buoy main body positioned below the expanding platform and an anchoring structure connected below the subsurface buoy main body, the subsurface buoy body comprises a buoyancy platform arranged below the unfolding platform and an equipment platform arranged below the buoyancy platform. The problem that a hydrophone linear array composed of a plurality of large-scale acoustic linear arrays is folded and automatically unfolded into a cross horizontal array is solved, and integration of a deep-sea acoustic emission system, an acoustic receiving system, an underwater acoustic communication system and an equipment supply system is achieved. The whole subsurface buoy can be quickly and conveniently released and recycled, and high-reliability anchor mooring is achieved.

A system and method for collecting hydrological information in deepwater lakes, deepwater reservoirs, and oceans. The system comprises a cable (2) which is vertically lowered into the water of a deepwater lake, deepwater reservoir, or ocean, and a hydrological probe (4) connected to the lower end of the cable (2). The cable (2) connects a number of submersible floating tanks (3) distributed at varying depth positions, the cable (2) comprising a number of segments, and a cable (2) segment being connected between two vertically adjacent submersible floating tanks (3). The method comprises: fixing the hydrological probe (4) to the endmost cable (2) end, and fixing the other end of the cable (2) on a power ship (1); lowering the hydrological probe (4) into the water until all cable (2) segments are taut, the hydrological probe (4) reaches probing depth, and each glass floating tank (7) also reaches its respective sampling depth; water enters the glass floating tanks (7) and fills buoyancy chambers; and starting a suction pump, and after the hydrological probe (4) finishes working and sampling by the glass floating tanks (7) is complete, pulling the cable (2) up to the ship. The hydrological probe (4) is lowered to a collection depth and simultaneous collection of water samples at various depths is implemented, thus reducing sampling time.

The present invention relates to a wave energy power generation buoy with a variable floating drum diameter and a control method thereof, belonging to the technical field of wave energy power generation buoys, and comprising an air turbine, a rigid floating drum, a flexible floating drum and a heaving plate. The rigid floating drum is a cylinder with a fixed annular cavity, an oscillating water column channel is arranged at the center of the rigid floating drum, a ventilation port communicated with the oscillating water column channel is arranged at the top center of the rigid floating drum, the air turbine is fixedly installed at the ventilation port, a plurality of uniformly distributed vertical rods are fixedly connected to the bottom of the rigid floating drum, and the lower ends of the vertical rods are fixedly connected to the heaving plate. The flexible floating drum is a cylinder with a radially variable annular cavity, the flexible floating drum is fixedly sleeved on the outer peripheral side of the rigid floating drum, and an air inflation and extraction device for inflating or extracting air from the flexible floating drum to change its radial dimension is fixedly installed in the fixed annular cavity. The present invention improves the wave energy conversion efficiency.

This invention relates to a modular sensing, communication, and analytics platform. The platform includes a modular device network having a communication module, a main module, and at least one modular device, where the communication module, the main module, and the at least one modular device use acoustic signals, visual signals, light signals, and / or radio frequency to establish a communication link between the communication module, the main module, and the at least one modular device.

The present invention relates to a heaving plate wave energy power generation buoy with a variable cross-sectional area of a water column and a method thereof, belonging to the technical field of wave energy power generation buoys. It includes a buoy body, an air turbine is installed in the air outlet hole at the top of the buoy body, a central pipe located directly below the air outlet hole is arranged at the center of the bottom of the buoy body, a water column cavity communicating with the air outlet hole is formed between the outer side wall of the central pipe and the inner side wall of the buoy body, a heaving plate is fixedly connected to the bottom end of the central pipe, a plurality of uniformly distributed horizontal guide rails are fixedly connected between the upper outer side wall of the central pipe and the middle inner side wall of the buoy body, a telescopic partition plate assembly that divides the water column cavity into an outer water column cavity and an inner water column cavity is slidably installed on the plurality of horizontal guide rails, and a synchronous telescopic driving mechanism for driving the telescopic partition plate assembly to move along the horizontal guide rails is fixed at one end of the horizontal guide rail. The present invention can change the cross-sectional area ratio of the outer water column cavity and the inner water column cavity according to sea conditions, and obtain the optimal wave energy conversion efficiency.

The invention discloses a water quality multi-depth sampling device for environmental monitoring, and belongs to the field of water quality sampling. A water quality multi-depth sampling device for environmental monitoring comprises a buoyancy ring, the inner wall of the buoyancy ring is fixedly connected with a bearing plate, the bottom of the bearing plate is fixedly connected with a sampling cylinder, the water quality multi-depth sampling device further comprises multiple sets of sampling rings, the sampling rings are rotatably connected to the sampling cylinder, and the sampling rings are arranged at equal intervals. The two sides of each group of sampling rings are fixed and communicated with sampling pipes, and the interior of the sampling cylinder is divided into a plurality of groups of sampling bins by sealing plates; the piston plate slides in the piston bin in a reciprocating manner, so that water samples at different depths are synchronously extracted and collected, and the sampling efficiency is improved; and the arrangement of a linkage gear and a linkage fluted disc is matched, so that the sampling pipe rotates around the sampling cylinder, water samples in different areas at the same height are collected, the sampling effect is improved, and the accuracy of a detection result is ensured.

The invention relates to the technical field of ocean observation stations, in particular to an ocean fixed-point observation buoy system. The device comprises a water surface buoy end and an underwater end, the upper end of the underwater end is fixedly connected with the water surface buoy end, the underwater end is provided with a temperature and salinity detection module capable of moving up and down, the temperature and salinity detection module is used for detecting and storing temperature and salinity data of different depths in an ocean water body, and the water surface buoy end is provided with an information sending control module, an energy storage battery and a photovoltaic module. The energy storage battery is used for providing driving electric energy for the information sending control module, the photovoltaic module is used for charging the energy storage battery, the information sending control module is used for receiving data transmitted by the thermohaline detection module and sending the data to the upper computer, and the information sending control module is used for controlling the energy storage battery to supply power to the thermohaline detection module through the charging module. Therefore, the thermosalinity detection module can move up and down and perform thermosalinity data detection. The buoy system can realize temperature and salt data observation of a target area at any time, and is energy-saving and environment-friendly.

The utility model relates to a hydrological buoy emergency monitoring device, and belongs to the technical field of hydrological monitoring. Comprising a body, a cleaning mechanism is arranged at the top end of the body, a plurality of ventilation channels penetrate through the body, a floating plate is fixedly connected to the lower end of the body, and wing plates are fixedly connected to the side faces of the floating plate. By arranging the cleaning mechanism, the side face of the buoy can be effectively cleaned, the situation that aquatic creatures are attached to the buoy is effectively reduced, the working stability of the buoy and the accuracy of data collection are improved, by arranging the ventilating duct and the wing plate, the stability of the buoy is improved, and inclination and swing caused by waves and water flow can be reduced.

The invention relates to the field of water body sampling, in particular to sampling equipment for water environment governance, which comprises a sampling mechanism, a force storage mechanism is movably connected in the sampling mechanism, a floating mechanism is arranged on the outer wall of the sampling mechanism, and a trigger mechanism and a positioning mechanism are arranged at the top of the sampling mechanism; the sampling mechanism comprises a sampling box, the force storage mechanism comprises a piston arranged in the sampling box in a sliding mode, and the top of the piston is fixedly connected with a sliding rod. The device can achieve rapid sampling at the specified depth, the sampling efficiency is improved, meanwhile, a water body in the central area of river water on a bridge can be sampled, a running water sample can be obtained, and the sampling efficiency is improved. According to the device, water is directly sampled from water below the water surface, floating objects on the water surface are prevented from being brought into the device, the device has the same sampling depth every time, a good water sample can be obtained, the water taking speed of the device can be rapidly increased through the arrangement of the force storage mechanism, a water pumping mode is directly adopted for sampling, and the sampling efficiency is higher compared with water inflow sampling.

The invention relates to a towed towed buoy array positioning device and method. The towed towed buoy array positioning device comprises a towed mother ship, and a deck unit is fixedly installed on the towed mother ship; the system further comprises a plurality of dragging buoys which are connected in series through ropes and form a dragging buoy array, the dragging buoy located at the foremost end is connected with the dragging mother ship through the rope, and the whole dragging buoy array is dragged by the dragging mother ship on the water surface to sail. The dragging buoy located at the tail end is arranged in a transverse offset mode, complex installation and calibration are not needed before use, and laying and recycling are convenient; the acoustic measurement sensor is always kept far away from a mother ship and is less interfered by ship body noise, so that the acoustic positioning calculation precision is greatly improved; according to the device, accurate positioning of deep towing is achieved based on the spatial distance intersection positioning principle, the base line of the acoustic measurement sensor array is long, the accuracy advantage of long base line positioning is achieved, no positioning tracking ship is arranged in the method, and compared with a double-ship positioning method, the manpower and material resource cost is reduced through the method.

The utility model relates to the technical field of water sample collection, in particular to a water quality stratified sampling device; the device can synchronously collect water samples of different depths, is easy to store and carry, is convenient to operate, and has a more reasonable structural layout; the water sample can be adjusted according to actual needs; it includes a plurality of stratified samplers and a plurality of standard connecting rods, and each two adjacent stratified samplers are connected as a whole through the standard connecting rod. The stratified sampler includes a cylinder, a valve plug slidably installed in the cylinder, a driving rod connected as a whole with the valve plug, and a spring sleeved on the driving rod, one end of the spring abuts against the top wall of the cylinder, and the other end of the spring abuts against the upper part of the valve plug. A water inlet pipe connected with the inside of the cylinder is provided on the upper part of the cylinder, and the valve plug blocks the connection between the water inlet pipe and the cylinder. A drainage pipe connected with the bottom of the cylinder is provided at the bottom of the cylinder, and a switch valve is installed on the drainage pipe. The driving rod passes through the top and bottom of the cylinder, and the driving rods on each two adjacent stratified samplers are threaded at the head and tail.

The present invention provides a system for measuring real-time meteorological and oceanographic data using a buoyage network for smart ports and harbours. It consists of a moored floating station or moored buoy, or network of buoy-based measurement stations (A) moored at the port or harbour waters with the marine navigation and land-based measuring station (B) mounted at jetty or wharf or quay wall of port and harbours. The buoy-based system (A) is equipped with a cylindrical steel buoy structure featuring a mast (7) and is secured using a two-point mooring system. The present system comprises of an integrated monitoring and data transmission system that collects the real-time meteorological and oceanographic data from the sensors and processes the acquired data based on calibration, enabling accurate and reliable measurements. The processed data is then stored in the system's internal memory for analysis and transmitted to a remote-control station.

The invention relates to a pneumatic cable throwing device applied to an underwater vehicle and a cable throwing method. The cable throwing device comprises a buoy, a gas cylinder, a shell, a cable, a release cavity, a base and a compressed air storage cavity. A buoy, a gas cylinder and a base are sequentially installed in an inner cavity of the shell from top to bottom, the bottom of the buoy and the top of the gas cylinder form a closed release cavity, a compressed air storage cavity is formed in the gas cylinder, the cable is arranged between the inner surface of the shell and the outer surface of the gas cylinder, one end of the cable is fixedly connected with the buoy, and the other end of the cable is fixedly connected with the base. Compressed air is stored in the compressed air storage cavity before the device works, the compressed air enters the release cavity and generates thrust on the buoy during working, the buoy drives the mooring rope to be ejected and thrown out, and the buoy floats on the water surface at a long distance. The cable throwing device has the advantages of being high in integration degree, stable in function, long in cable throwing distance, high in safety, wide in application range and the like, and the recycling requirement of the underwater vehicle under the complex sea condition can be well met.

The invention relates to a heaving plate wave energy power generation buoy with the variable cross section area of a water column and a method, and belongs to the technical field of wave energy power generation buoys.The heaving plate wave energy power generation buoy comprises a buoy body, an air turbine is installed in an air outlet hole in the top of the buoy body, and a center pipe located under the air outlet hole is arranged in the center of the bottom of the buoy body; a water column cavity communicated with the air outlet hole is formed between the outer side wall of the center pipe and the inner side wall of the buoy body, a heaving plate is fixedly connected to the bottom end of the center pipe, and a plurality of evenly-distributed horizontal guide rails are fixedly connected between the outer side wall of the upper portion of the center pipe and the inner side wall of the middle of the buoy body. A telescopic partition plate assembly dividing the water column cavity into an outer water column cavity and an inner water column cavity is installed on the horizontal guide rails in a sliding mode, and a synchronous telescopic driving mechanism used for driving the telescopic partition plate assembly to move along the horizontal guide rails is fixed to one ends of the horizontal guide rails. The proportion of the cross section area of the outer water column cavity and the cross section area of the inner water column cavity can be changed according to the sea condition, and the optimal wave energy conversion efficiency is obtained.

The invention relates to the technical field of water quality detectors, in particular to a floating type water quality detector and a using method thereof.The floating type water quality detector comprises a buoy, the lower end of the buoy is fixedly connected with a square base, and a supporting arm is fixedly installed on the outer surface of the square base; the device has the beneficial effects that a composite filtering structure formed by combining the outer fixed detection column and the inner conical filter cover is adopted, so that the flowing resistance of water flow around the outer fixed detection column can be reduced, the flowing of the water flow in each detection area can be met, suspended matters, impurities, particulate matters and the like close to a monitoring probe can be blocked, and the detection accuracy is improved. Through mutual cooperation of a probe protection sleeve and a running water disturbance assembly, water flow disturbance on the upper portion of the outer fixed detection column is achieved, the water flow fluidity is improved, an inner conical filter cover can be driven to move to pump the water flow, and the water flow disturbance effect is improved; and self-cleaning of the outer fixed detection column and the inner conical filter casing is realized.

The invention discloses a wind wave and surge extraction method and system based on a GNSS and an anemometer. The method comprises the following steps: respectively obtaining water level height data and wind data detected by a buoy for multiple times according to a reference time sequence and a detection time sequence; the buoy water level height data and the wind data are subjected to data preprocessing, the water level height and the wind data are preprocessed, and the preprocessed water level height and the preprocessed wind data are obtained; calculating the water level height and the wind data in unit time by using the preprocessed water level height and the wind data according to a segmented interpolation function, and calculating wave height data under a corresponding detection time sequence according to the water level height and the wind data in the unit time; feature set classification is carried out according to wind speed grades, IFFT is carried out after screening, and final wind wave and surge data are obtained, the water surface wind wave and surge data extraction precision is effectively improved, and low-cost and long-time-efficiency water surface wind wave and surge detection can be achieved.

A water sensor buoy for use in a water environment. The buoy including a buoy hull, a data processing and control unit, a data transmission unit, a power source, a water sensor, a wiper wheel with a wiper to slidably engage the exterior sensor surface upon rotation of the wiper wheel for removal of particulates disposed upon the exterior sensor surface, a water pump and a water jet outlet to direct a water stream at the exterior sensor surface for removal of particulates disposed upon the exterior sensor surface.

The invention relates to the technical field of bridge pier scour monitoring, discloses an air-water-shore cooperative overwater float type bridge pier scour monitoring system, and belongs to the technical field of bridge safety monitoring. According to the system, an integrated framework is formed by a buoy platform, a shore-based cooperative monitoring station and a cloud monitoring platform. The buoy platform is fixed to a pier through a mooring lead, the underwater sonar module of the buoy platform can scan the terrain of a riverbed at multiple angles, and the overwater module integrates high-precision positioning and video monitoring. The shore-based station is provided with a laser scanner and a high-definition camera to monitor the overwater structure and the macroscopic environment of the pier. The cloud platform serves as a control center, converges the multi-source data of the buoys and the shore stations through a communication network, carries out time sequence correlation and fusion analysis, and dynamically evaluates the scour pit development and the bridge pier structure state. According to the invention, the limitation of a single monitoring mode is broken through, collaborative acquisition and intelligent fusion of air, water and shore data are realized, the comprehensiveness, accuracy and early warning capability of monitoring are remarkably improved, and reliable guarantee is provided for safe operation of bridges.

A real-time monitoring device for a polar nearshore marine environment is provided, including a cabin body, a main control cabin and a scraping structure, an outer wall of the cabin body is provided with collecting holes, an electric motor is arranged in the main control cabin, the electric motor provides power through a first rotating rod penetrating a side wall of the main control cabin. The scraping structure includes a power structure, a scraper and a collecting bucket, the scraper is arranged outside the cabin body and is fixedly provided with the collecting bucket. The power structure is connected to the first rotating rod and drives the scraper and the collecting bucket to rotate relative to the cabin body, the collecting bucket collects the floating objects on the outer wall and around the cabin body, and the floating objects enter the cabin body through the collecting holes.

The invention discloses a floating type riverway water quality detector for municipal environment monitoring, and belongs to the technical field of water quality detectors, the floating type riverway water quality detector comprises a floating body floating in a riverway, the lower end of the floating body is fixedly provided with a fixing cylinder for sampling, the inner side of the floating body is fixedly provided with a partition plate, and the partition plate is provided with a detection module; a drainage pipe is rotationally connected to the center of the rotating seat, a sample tank for collecting samples and a water outlet pipe for discharging washing water are mounted on the partition plate, a water inlet groove is formed in the lower end of the fixing cylinder, a purification assembly is mounted on the inner side of the water inlet groove, and meanwhile an elastic rubber sheet is mounted at the upper end of the water inlet groove. The floating type river water quality detector for municipal environment monitoring can conveniently collect and store a water sample in the detection process, and can flush a pipeline by using a purified water body after single detection, so that the subsequent detection precision is ensured.

The invention discloses a water conservancy quality detection device which comprises a floating platform, the top of the floating platform is fixedly provided with a quality detection assembly, the top of the floating platform is fixedly provided with a water pumping assembly, and the top of the floating platform is fixedly provided with a water collection and drainage assembly. The device comprises a floating platform, the top of the floating platform is fixedly provided with a data acquisition box, a driving power supply, a sensor and a protective cover, and the top of the floating platform is fixedly provided with the driving power supply, the sensor and the protective cover. According to the detection device for the water conservancy quality, by arranging the quality detection assembly, multiple key parameters of a water body can be detected at the same time, sufficient data basis is provided for water resource management, ecological protection and the like, the position of a water pumping pipe can be flexibly adjusted, detection of water bodies of different depths is achieved, and it is ensured that evaluation of the water conservancy quality is more accurate and objective; by arranging a protective cover, the service life of equipment is prolonged, the maintenance cost is reduced, and the accuracy of detection data is improved.

The invention discloses an intelligent monitoring device and method for a water body environment. The monitoring device comprises a platform base body (5), a propeller assembly (7), a water quality detector (1), a camera (4), a detection box (9), a main winch (32) and a main controller (31). The detection box is assembled and connected with a hoisting steel rope (321) of the main winch, and the main winch can lower and hoist the detection box; the propeller assembly is used for driving the monitoring device to autonomously move on the water surface. According to the monitoring device and method, automatic monitoring can be flexibly and efficiently carried out on the water body of the water area, aiming at a method for monitoring the floating objects on the water surface through machine vision, a two-dimensional wavelet convolution (WTConv2d) technology is used, multiple attention mechanisms are added, so that better feature representation is obtained, 5% of parameter quantity and calculation quantity of the model are reduced, and the accuracy of the model is improved. The calculation complexity of a water surface target detection task is reduced; and the model understanding capability is improved.

The invention relates to a wave power generation buoy with a variable buoy diameter and a control method thereof, and belongs to the technical field of wave power generation buoys, the wave power generation buoy comprises an air turbine, a rigid buoy, a flexible buoy and a heaving plate, the rigid buoy is a barrel with a fixed annular cavity, and an oscillating water column channel is formed in the center of the rigid buoy; the center of the top of the rigid buoy is provided with an air vent communicated with the oscillating water column channel, the air turbine is fixedly installed at the air vent, the bottom of the rigid buoy is fixedly connected with a plurality of evenly-distributed vertical rods, and the lower ends of the vertical rods are fixedly connected with the heaving plate. The flexible buoy is a buoy body with a radial variable annular cavity, the flexible buoy is fixedly arranged on the peripheral side of the rigid buoy in a sleeving mode, and an inflating and exhausting device used for inflating or exhausting air to change the radial size of the flexible buoy is fixedly installed in the fixed annular cavity. The wave energy conversion efficiency is improved.