41 results about "Tide gauge" patented technology

The invention relates to a buoyancy swing device adapting to change of tide levels. The buoyancy swing device comprises a swing plate, wherein the swing plate is connected to a swing plate adjusting device; the swing plate adjusting device is connected to a controller; and the controller is connected to a tide gauge. The PC of the buoyancy swing device adapting to the change of tide levels can calculate the displacement value of the swing plate required to shift according to received tide level signals, and then the displacement value is output to the swing plate adjusting device by the PLC (Programmable Logic Controller) controller, and the position of the swing plate is adjusted by the swing plate adjusting device to realize the function of the swing plate which can adapt to the change of the tide levels; and as the position of the swing plate can be adjusted according to the change of water levels, compared with a conventional buoyancy swing device, the hydrodynamic performance of the buoyancy swing device adapting to the change of the tide levels is greatly improved, the wave energy is fully converted into usable energy, and energy waste in the whole conversion process is significantly reduced.

The invention relates to an apparatus and method for the in-situ real-time observation of submarine sand waves. The apparatus includes an observation system and auxiliary devices. The auxiliary devices comprise an auxiliary ship and a hoisting device; the observation system includes a gravity anchor, a fiber grating floating earth weight sensor, a Kevlar cable, an underwater acoustic releaser group, a lower floating ball bracket, a wave and tide gauge, an upper floating ball bracket, an MRU three-dimensional attitude sensor, a satellite communication machine, an imaging sonar, a solar cell anda main floating body. The principle of the apparatus and the method is characterized in that submarine pressure change caused by the migration of the submarine sand waves is observed, the time interval, elevation and wavelength data of two adjacent extreme submarine pressures are analyzed, and the migration rate of the submarine sand waves is calculated. The method includes the following steps: selection of an observation point and a deployment time, system deployment, recovery, and data processing. The apparatus and the method provide a new idea for the in-situ real-time observation of the submarine sand waves, have the characteristics of simple and easy device, long in-situ real-time measurement period and wide applicable water range, and can realize the in-situ real-time long-term observation of the migration of the submarine sand waves.

The invention discloses a portable float type automatic tide gauge which comprises a filter tube, a float, a retardation filter and a central control unit. The filter tube is provided with a pluralityof magnetic control switches along the height direction thereof, and each magnetic control switch corresponds to a height position. The filter tube is provided with an opening. The float can float inthe filter tube. The float can trigger the action of each magnetic control switch. The retardation filter is arranged in the opening of the filter tube. Water flow can come into the filter tube through the retardation filter to enable the float to float. The central control unit is arranged on the filter tube, and the central control unit is connected with a number of the magnetic control switches. According to the portable float type automatic tide gauge provided by the invention, the height position of the float is reflected by the action of the magnetic control switches, so as to acquire the liquid level height in the filter tube and a tide level value; the retardation filter can filter the water flow, which can effectively weaken the interference of the kinetic energy of the water flow; and the measurement accuracy is improved.

The invention relates to a portable corrosion-proof micro-organism growth-proof tide gauge which comprises a bracket and an underwater probe; the probe is fixedly arranged on the bracket; the bracket is a structure consisting of three conical bar frames; the underwater probe comprises an underwater probe shell, a water inlet cover and a cable joint; a sensor and a circuit board are arranged in the underwater probe shell; the water inlet cover is coaxially arranged at the lower end of the underwater probe shell; a plurality of water inlet grooves are axially arranged on the outer cylindrical surface of the water inlet cover; the underwater probe shell is coaxially provided with a red copper uniform flow cover through an insulating sleeve on a water inlet nozzle arranged in the water inlet cover; and water inlets are uniformly distributed on the outer cylindrical surface and the lower bottom surface of the uniform flow cover. In the invention, the tide gauge is simple in integral structure, scientific and reasonable in bracket design, quick and firm to mount and convenient to carry; sacrificial anodes are respectively arranged on the underwater probe uniform flow cover and the water inlet cover, and the corrosion-proof effect is excellent; the uniform flow cover arranged at the water inlet nozzle is capable of guaranteeing the data acquisition precision of the sensor, simultaneously the growth of the marine micro-organism on the surface of the underwater probe is effectively avoided, and the precision of the data acquisition of the tide gauge is effectively guaranteed; and the tide gauge is simple in integral structure and scientific and reasonable in design.

The invention discloses an automatic laser tide gauge which has the advantages of simple structure, low cost, robustness and durability for use, easiness for installation and operation and high degree of automation and observation accuracy. The automatic laser tide gauge is provided with a hollow column body (1) of which a lower end is connected with a wave absorbing water intake device (2), a laser reflection floater (3) is arranged inside the hollow column body (1), a laser ranging module (4) is arranged at an upper end of the hollow column body (1), a laser emitter head of the laser ranging module (4) is arranged in opposite to the laser reflection floater (3), an output end of the laser ranging module (4) is connected with a microprocessor, and a data transmission module is connected with the microprocessor.

The invention relates to a laser seaborne tide gauge and a tide gauging method thereof. The gauge comprises a wireless communicator, a laser sensor, a keyboard, a displayer, a mainboard circuit and a main power supply board, wherein the mainboard circuit is formed by connecting a main controller, a clock controller, a data storage device, a storage device power supply, a serial circuit and a peripheral supporting circuit; the main controller is connected with the keyboard, the displayer, the clock controller, the data storage device and the serial circuit, and the data storage device is connected with the storage device power supply; the serial circuit is connected with a data output port, the wireless communicator and the laser sensor; the main power supply board is used for supplying power supplies for the circuits and equipment, and an external storage battery and a solar panel are used for supply voltage input or an alternating-current power grid is used for supplying a power supply through AC-DC for the main power supply board. The laser seaborne tide gauge obtains change of tide level data through change of laser, and the tide gauging method is simple, high in gauging precision and wide in range. The gauge is easy and convenient to mount, is basically maintenance-free and is stable and reliable in performance.

The invention relates to a wave / tidal test verification system device and application thereof. The wave / tidal test verification system device comprises a core measurement and control system and a key auxiliary mechanism, wherein the core measurement and control system comprises a power system and a measurement and control system; the key auxiliary mechanism comprises a traction auxiliary mechanism, a bearing platform auxiliary mechanism and an isolation auxiliary mechanism; and the measurement and control system is used for monitoring and controlling a system and mutually cooperated with the power system. The wave / tidal test verification system device disclosed by the invention is a novel wave and tidal integral test verification system which completes the verification tasks of a gravity acceleration sensor, a gravity acceleration meter type wave buoy, a pressure-type acoustic-type optical-type wave measuring instrument and a pressure-type acoustic-type float-type tide gauge / water level meter by simulating the movement change rule of waves / tides / water levels by dragging the bearing platform auxiliary mechanism to move at acceleration fitting to a certain change rule in a vertical direction by dint of the traction auxiliary mechanism.

The invention relates to an intelligent monitoring device for tidal water level monitoring and a working method thereof, comprising a tide level gauge, a buoy and a fixed assembly, the tide level gauge includes a cable and a housing, the cable extends from the upper end of the housing to the inside of the housing, and the inside of the housing is equipped with Pressure sensor, temperature sensor, sound velocity measurement unit, storage calculation unit and battery unit, pressure sensor, temperature sensor, sound velocity measurement unit are all connected with storage calculation unit, the pressure sensor is used to monitor the zero position pressure of the tide gauge, and the sound velocity measurement unit is used to measure The propagation velocity of sound in seawater at the depth where the tide gauge is located, the storage calculation unit is used to calculate and store data including seawater pressure, seawater temperature and sound velocity. The present invention can solve the problem that the existing self-contained tide level gauge cannot calculate the tide level data of the monitoring area according to the actual density of the seawater at its depth, which causes the tide level and the actual tide level in the monitoring area recorded and stored by the self-contained tide level gauge quite different issues.

The invention relates to a vertical reference detection method of a tide gauge station by using a GNSS buoy, and belongs to the technical field of vertical reference detection of a tide gauge station. The present invention includes the following steps: S1: GNSS precision level measurement, S2: on-site deployment of GNSS buoys, S3: erection of GNSS static reference stations, S4: setting of GNSS observation time, S5: calculation of GNSS buoy SSH, S6 : Data filtering of tide signal SSH, S7: Elimination of SSH geoid difference, S8: Unification of GNSS and vertical datum of tide gauge station. The present invention uses high-precision GNSS altimetry buoys to observe the sea surface height information under the WGS-84 reference ellipsoid datum, avoids the above three problems, conveniently and economically deploys in sea areas near marine stations, and avoids reference displacement errors and levels of tide gauge stations Measurement errors are accumulated, and tide gauge station benchmarks are unified in any sea area (including) remote sea islands and reefs.

The invention discloses a GUI based modular support vector machine tide forecasting method, which comprises the steps of S1, acquiring continuous-sequence tide level information monitored by a tide station and a tide value forecast by using a harmonic analysis method; S2, making a difference between a measured value acquired by the tide station and the tide value forecast by the harmonic analysis method, acquiring a time sequence of non-astronomical tide, carrying out data accumulation processing on the inputted tide level information and the tide value according to a grey model AGO algorithm, and enabling the processed data to act as input so as to be applied to regression forecasting of a support vector machine; S3, forecasting tide through the support vector machine according to tide forecasting time information set in the step S1; and S4, completing data recovery of a forecast result of the support vector machine through IAGO reverse accumulation processing, wherein the recovered data is used for modifying the tide forecasting value of the harmonic analysis method.

The invention discloses a sea precision positioning method based on elevation constraints. Based on the instantaneous sea surface geodetic data obtained from the water level data observed by the tide gauge station, the distance between the antenna phase center of the GNSS receiver and the instantaneous sea surface is calculated to generate The prior geodetic height data of the GNSS antenna phase center, and the prior geodetic height data are used to solve the constraints, so as to improve the positioning accuracy of the sea elevation direction. Compared with the conventional GNSS positioning algorithm, the method of the invention adds an elevation constraint condition, which can not only effectively improve the calculation accuracy of the elevation direction, but also significantly shorten the convergence time of the elevation direction.