191 results about "Measurement cost" patented technology

The invention relates to a method, device and product for monitoring river flow in real time, and the method comprises the steps: obtaining tower footing video data of a target river reach which comprises a target section and a pier buoy; inputting the tower footing video data into a water level and flow velocity identification model, and obtaining the water level elevation and the surface flow velocity of at least part of the cross section in the target section through the water level and flow velocity identification model; inputting the water surface elevation into a three-dimensional digital river channel model to obtain a section water passing area of a corresponding cross section; and obtaining the cross section flow of the target cross section according to the cross section water passing area and the surface flow velocity. According to the embodiment of the invention, automatic flow estimation based on the tower footing video can be realized, the manual measurement cost is reduced, the spatial-temporal resolution of flow monitoring is improved, and the method can be used for large-range river monitoring, especially in areas lacking hydrometric stations, and can provide data support for drainage basin water resource management and flood prevention early warning.

The invention discloses a three-coordinate measurement method and system based on virtual simulation, and belongs to the technical field of virtual simulation measurement, and the method comprises the steps: obtaining virtual point cloud data of a measured workpiece, and obtaining a workpiece simulation curved surface model through curved surface fitting; a reference axis of the model is used as a mapping reference axis, a curved surface key measurement point location is identified, the spatial distance between the curved surface key measurement point location and a reference axis mapping position point is calculated, and a point location mapping deviation distribution map is generated; the deviation change trend is analyzed to eliminate false measurement points, and an optimized virtual point cloud model is obtained through reconstruction; performing geometric feature analysis and deviation judgment on the optimization model by using a pre-trained workpiece deviation recognition neural network, and outputting workpiece deviation region data; virtual three-coordinate modeling is executed according to the data, a deviation area virtual three-coordinate model is generated, and measurement is completed; according to the invention, three-coordinate measurement is realized through virtual simulation, the measurement efficiency and accuracy are improved, the entity measurement cost is reduced, and the method is suitable for accurate measurement scenes of various workpieces.

The invention discloses a device and a method for detecting marine organisms attached to an underwater structure. The device comprises a machine shell, a watertight pressure-resistant cabin arranged in the machine shell, an ultrasonic signal excitation and receiving module arranged outside the machine shell, an underwater carrying camera, a motion control mechanism, a man-machine interaction module, a power supply system arranged in the watertight pressure-resistant cabin and a data storage processing module. The method comprises the following steps: initial motion control and information input of a to-be-tested component group; lowering the device to a specified position; inputting a motion direction and a speed; opening an ultrasonic signal excitation and receiving module; the movement mechanism is started, and the control device translates in the vertical component direction; continuously receiving images and signal images; stopping movement, closing the probe, and calculating the thickness; carrying out data return processing; recovering the device, and the like. According to the device, manual detection is replaced, the measurement cost and difficulty can be reduced, the measurement data accuracy is improved, and timely and efficient measurement is achieved.

The invention discloses a measuring thickness increasing method, a strip steel thickness measuring method, a system and a medium, and the method comprises the steps: increasing the tube voltage of an X-ray thickness gauge from a preset voltage value to a target voltage value, and increasing the tube current of the X-ray thickness gauge from a preset current value to a target current value, the preset voltage value and the preset current value are working parameters of the X-ray thickness gauge in an original thickness measuring range; based on a plurality of thicknesses corresponding to a target thickness measurement range, the standard plate under each thickness is measured through a plurality of measurement channels of the X-ray thickness gauge, and the target thickness measurement range is larger than the original thickness measurement range; and determining a linearization curve of each measurement channel based on the measurement result of each measurement channel on the standard plate with each thickness, the linearization curve being used for determining the thickness of the to-be-measured object. According to the scheme, the thickness measuring range of the X-ray thickness gauge can be effectively increased, and the thickness measuring cost is effectively saved.

The invention discloses a grid-connected three-phase LCL inverter parameter monitoring method for digital twinning modeling. The method comprises the following steps: acquiring actual measurement data of a grid-connected three-phase LCL inverter; and according to actual measurement data, performing iterative optimization on monitoring parameter sets of a digital twin model of the grid-connected three-phase LCL inverter based on an adaptive particle swarm algorithm, including: operating the digital twin model under each monitoring parameter set to obtain corresponding multiple groups of model output data, and calculating a corresponding error objective function, taking the monitoring parameter set corresponding to the minimum target function value as an optimal monitoring parameter set; if an error objective function value responding to the optimal monitoring parameter set is smaller than a function threshold value, outputting the error objective function value as a final optimal monitoring parameter set, and performing subsequent parameter monitoring; and otherwise, iteration optimization is continued. And high-precision calibration of the digital twin model and the real inverter is realized, so that key parameters which are difficult to directly measure or high in measurement cost in the real inverter are calculated in real time.

The invention provides a tire noise testing system, which relates to the technical field of vehicle testing and comprises a base, a driving box is arranged at the top end of the base, the top end of the driving box is fixedly connected with a turntable through a rotating shaft, a tire fixing mechanism is arranged on the turntable, and a simulated road surface mounting mechanism is further arranged at one end of the base. According to the device, tires of different specifications and sizes are clamped and fixed by arranging the tire fixing mechanism, then the simulated road surface plate is moved to be in contact with the tires through the simulated road surface mounting mechanism, then the tires are rotated through the driving box, and finally the tires are rotated by rotating the tires. And noise is collected and tested during rotation. In the prior art, a rotary drum method is high in measurement cost, is influenced by a site, and is inaccurate in measurement data; the technical problems of high cost of measuring equipment, high requirement on a test road section, large external influence and limited test equipment in the prior art are solved.

The application provides a process industry soft measurement method based on feature extraction and incremental learning. The method introduces an end-to-end neural network soft measurement model composed of multiple parallel time series feature extraction self-encoder networks and a regressor network connected in front and back, extracts time series features from multi-process variable time series data, and uses the time series features for performance index soft measurement modeling. In addition, based on the time series features extracted by the model, the method proposes an incremental learning method based on time series features. The soft measurement method provided by the application can effectively and accurately perform soft measurement on some performance indexes that are difficult to directly measure or have high measurement cost in the process industry, and through the incremental learning method, the soft measurement model can long-term maintain good soft measurement performance in the industrial data stream with strong real-time performance, thereby providing reference and guidance for monitoring, measurement, optimization and control of various parameters in the process industry production process.

The invention provides a heating pressure control type ground stress measuring device and method, and the device comprises a derrick arranged right above a hole, the derrick is connected with a central connecting rod through a traction cable, a pulley block and a winch, the tail end of the bottom of the central connecting rod is provided with a unit testing barrel, and the middle part of the central connecting rod is provided with a miniature vibration motor; and the stress sheet in the unit test barrel is connected with the sensor, the dynamic strain acquisition instrument and the computer controller through the three-core shielding wire. According to the device, the stress can be adjusted through temperature control, the mode that the linear expansion coefficient of heated aluminum metal particles is high is innovatively adopted as a power source instead of external large pressurization equipment, the measurement cost is effectively saved, the problem of pressure leakage of a fracturing section is avoided, the measurement scale is reduced, and the measurement accuracy is improved. And the measurement efficiency of the ground stress is improved.

The invention discloses an amplitude-phase deviation measurement method for simulating an active phased array, which comprises the following steps of: calculating amplitude deviation proportions and phase deviation values of all uplinks / all downlinks of a one-dimensional linear array or a one-dimensional conformal array at one time by utilizing an actual measurement complex number transmitting directional diagram / actual measurement complex number receiving directional diagram; and determining the amplitude-phase deviation of the two-dimensional planar array or the two-dimensional conformal array by using the amplitude-phase deviation of all the one-dimensional linear arrays or all the one-dimensional conformal arrays. Compared with an existing amplitude-phase deviation measurement method, the amplitude-phase deviation measurement method has the advantages that calibration of the transmitting directional diagram / receiving directional diagram is a direct calibration method of the transmitting directional diagram / receiving directional diagram, and due to the fact that the actually-measured transmitting directional diagram / actually-measured receiving directional diagram contains the influence of the mutual coupling effect between the antenna units, the amplitude-phase deviation measurement method can be applied to calibration of the transmitting directional diagram / receiving directional diagram. The deviation between the formed transmitting pattern / receiving pattern and the expected transmitting pattern / receiving pattern is small, and the method has the advantages of being short in measurement time, high in measurement efficiency, low in measurement cost and the like.

The utility model relates to the technical field of measuring instruments, and in particular to a gauge for the inner diameter of a circular inner hole of a blank. The gauge for the inner diameter of a circular inner hole of a blank provided by the utility model obtains four readings by measuring with a sliding mark, and the inner diameter of the blank can be quickly and accurately calculated by a formula. By replacing the vertical line component with a rigid structure, the inner diameter of any blank tube can be measured, which improves the versatility of the gauge, reduces the measurement cost and labor intensity, solves the problems of high cost, great detection difficulty and long time consumption of the inner diameter gauge in the prior art, and achieves the purpose of fast, low-cost, low-difficulty and high-precision inner diameter.

The invention relates to a bridge deflection measurement method and system based on a video phase. The method comprises the following steps: acquiring a vibration video, selecting a vibration image and preprocessing the vibration image; selecting feature points for the preprocessed vibration image and recording coordinates of the feature points; calculating the feature points and phase information of a preset area corresponding to the feature points; constructing an optical flow constraint equation based on the phase information and solving an optical flow component; calculating adaptive confidence corresponding to the feature points; and calculating the deflection. A non-contact video measurement mode is adopted, the measurement cost and the operation complexity are reduced through the bridge deflection measurement method and system based on the video phase, and long-term and real-time monitoring of the bridge deflection can be achieved. Through quantitative analysis and self-adaptive confidence evaluation of phase nonlinearity, the measurement precision in a complex environment is effectively improved, the problem of great influence of the phase nonlinearity is overcome, and the tiny deflection change of the bridge can be accurately measured.

The utility model provides a device for measuring square resistance. The device comprises a measuring cavity, a probe, a bearing platform and a cleaning mechanism, the bearing table is arranged in the measuring cavity and used for bearing a wafer, and the probe is arranged in the measuring cavity and used for measuring square resistance on the surface of the wafer; the cleaning mechanism is arranged on one side wall of the measuring cavity, and the cleaning mechanism is used for spraying gas to clean the probe. According to the device for measuring the square resistance provided by the utility model, the cleaning mechanism is arranged on the measuring cavity, and the cleaning mechanism adopts gas to purge and clean the surface of the probe, so that the probe is prevented from being abraded while the surface of the probe is ensured to be clean, the accuracy when the probe measures the square resistance is ensured, the frequency of replacing the probe is reduced, and the working efficiency is improved. Therefore, the measurement cost is reduced.

The invention discloses a gas-liquid two-phase flow measurement method based on a bent pipe and an acoustic emission technology, and belongs to the field of gas-liquid two-phase flow measurement. The method comprises the steps that the average liquid holdup HL of two-phase flow in a pipeline is measured, and the instantaneous speed Vc of a gas phase and a liquid phase passing through the 45-degree section of the bent pipe is calculated; identifying a gas-liquid two-phase flow pattern in the pipeline; taking the Vc, the HL, the apparent liquid velocity VSL and the apparent gas velocity VSG as variables, and adopting a dimensional analysis method to propose a correlation between the Vc and the VSL and between the HL and the VSL and between the VSL and the VSG according to different flow patterns; calculating an effective voltage value RMS of the acoustic emission signal, and establishing a correlation between the RMS and the VSL and VSG; fitting parameters in the correlation formula; newly collected Vc, HL and RMS are input into the fitted correlation formula, VSL and VSG are output, and therefore measurement of the gas-liquid two-phase flow is completed. Compared with a single-phase metering method after separation commonly used in the oil and gas industry, the device has the advantages of being simple in structure, low in measurement cost, capable of achieving real-time measurement, non-invasive and the like.

The invention belongs to the technical field of sag measurement, and particularly relates to a power transmission line sag measurement system based on the Beidou positioning technology, which is composed of a sag measurement and calculation tackle and a control center, and is characterized in that the sag measurement and calculation tackle is provided with Beidou positioning equipment and an environment acquisition terminal; the Beidou positioning technology and the sag measuring and calculating tackle device are introduced into the sag measurement of the power transmission line, and the Beidou positioning equipment and the environment acquisition terminal are arranged on the sag measuring and calculating tackle. By means of the installed Beidou positioning equipment and the environment acquisition terminal, related data acquisition work is carried out, sag calculation is carried out, the purpose of flexible, dynamic and targeted measurement of the sag of the power transmission line is achieved, the accuracy of a measurement result can be improved, the timeliness of measurement can be enhanced, and the measurement efficiency is improved. And meanwhile, follow-up changes of the line can be adapted to the maximum degree, on-demand measurement is achieved, and measurement resources and measurement cost can be saved to a certain degree.

The invention discloses a device and method for measuring the photothermal effect of a two-dimensional material, and the device comprises an optical bread board, the optical bread board is provided with a light heating module, an electric heating module and a measurement module, the measurement module is provided with a to-be-measured material, and is used for supporting the to-be-measured material and obtaining the temperature of the to-be-measured material; the electric heating module is used for heating a to-be-tested material and obtaining the temperature in the heating process; the light heating module is used for illuminating a to-be-tested material and acquiring light power during illumination; the measurement principle advantage of the measurement device is remarkable, the Newton's cooling law is used as the core calculation principle, a physical model for calculating the photothermal conversion efficiency is simplified, the measurement device can calculate the photothermal effect of the two-dimensional material more visually and accurately, the measurement cost can be effectively reduced, and the measurement operation can be simplified.

The present invention discloses a navigation processing method, device, navigation system and medium, and relates to the field of navigation technology. The grid position of a preset time period and the posture information of the vehicle in each preset time period are recorded in the map information. In the vehicle guidance process, each target space feature point is mapped on the gridded spherical surface to obtain the target position of each target space feature point mapped on the gridded spherical surface. After matching the target position with the grid position of the preset time period recorded in the map information, the posture information of the vehicle in the current time period during the guidance process is determined according to the posture of the preset time period corresponding to the maximum sum of the successfully matched grid areas, so as to realize the positioning of the vehicle in the guidance process, and determine the speed of the vehicle according to the posture of the adjacent time period; there is no measurement error caused by a third-party measurement tool, the measurement accuracy is improved, the measurement cost is reduced, and it can be shared for positioning for a variety of vehicle models, and has universality.

The invention relates to a method for measuring the frequency response characteristic of an electronic device based on an OFDM signal. The method comprises the following steps: generating a target input signal; accessing the target input signal to a first measurement object, and measuring a first output signal output by the first measurement object; accessing the first output signal to a second measurement object configured to be in a first state, and measuring a second output signal output by the second measurement object; the second measurement object is different from the first measurement object, and the second output signal is different from the first output signal; and calculating first frequency response information of the second measurement object in the first state according to the frequency response difference between the first output signal and the second output signal. Through the method, the measurement cost of the frequency response information of the electronic device can be reduced, and the measurement accuracy of the frequency response information can be improved.

A device for measuring in-situ drilling rock hardness based on a high-pressure water pressure head comprises a hydraulic power system, a data acquisition system, a test probe and a push rod, the front end of the push rod is connected with the rear end of the test probe; the hydraulic power system comprises a manual hydraulic plunger pump; the manual hydraulic plunger pump is connected with the test probe through a reversing three-way valve; the data acquisition system comprises a data recorder, a displacement sensor and a pressure sensor, the displacement sensor and the pressure sensor are arranged on the manual hydraulic plunger pump, and the displacement sensor and the pressure sensor are connected with the data recorder through a signal receiver. The device is simple in structure, convenient to operate and capable of measuring the rock strength of different drill holes, different depths and different point positions so as to obtain the distribution condition of the roadway rock strength, the measuring result is close to the on-site rock mass, a water medium is used for pressure transmission, the measuring process is simple, convenient, environment-friendly and safe, errors in the processes of sampling, processing and the like are avoided, and the working efficiency is improved. And the measurement cost is reduced.

The invention discloses a material hyperspectral BRDF measurement method based on a diffractive optical element, and solves the problems that the existing spectral BRDF measurement cost is relatively high, the measurement process is complicated, and the measured data is not accurate enough, the diffractive optical element has the characteristic of negative dispersion, and only clear imaging is performed on a single wavelength at a set focal length, so that the diffractive optical element has the characteristic of negative dispersion. On the basis of the concept, the end-to-end network based on the diffractive optical element and deep learning is adopted to jointly optimize the hyperspectral BRDF data of the target material, that is, network parameters for the BRDF hyperspectrum are synchronously learned while the DOE surface height is optimized, and material BRDF hyperspectral inversion is achieved. The optimized diffractive optical element and the CCD camera are used for replacing a spectrum detector to collect hyperspectral BRDF data, so that the size of measurement equipment can be greatly reduced, the total cost is reduced, and the precision and the accuracy are improved.

The present disclosure provides a motor rotating speed measurement method and device, vehicle, medium and program product, and relates to the technical field of vehicles, and comprises the following steps: determining a multi-phase current in a winding of a motor, and analyzing the multi-phase current to determine a current period and / or a current frequency of the multi-phase current; and obtaining the rotating speed of the motor according to the current period or the current frequency, without the need to additionally set a speed measurement device, thereby reducing the measurement cost, or in the case of a speed measurement device failure, the rotating speed of the motor can also be measured, and the reliability of the rotating speed measurement is improved.

The utility model relates to a device for rapidly measuring the locking amount of an external lock turnout, which is specially designed for railway maintenance work and aims to simplify the measurement process and improve the measurement precision and the operation convenience. The device integrates the first measuring slide bar, the second measuring slide bar and the limiting slide seat, and the stable sliding of the first measuring slide bar is realized through the limiting slide groove. The top end of the first measuring sliding rod is provided with scale marks, and measured values can be accurately read. The arrangement of the spring not only ensures the measurement stability, but also realizes the automatic resetting of the sliding rod, thereby improving the measurement efficiency. The whole structure is compact and light, and carrying and on-site operation are convenient. According to the device, the efficiency and the accuracy of railway maintenance work are improved, the measurement cost is reduced, and a powerful guarantee is provided for the safety and the reliability of railway operation.

The invention discloses a power distribution network load flow calculation method and system based on incomplete measurement, and the method comprises the steps: building an incomplete measurement linear load flow model based on a preset full measurement linear load flow model through a measurable node set and an unmeasurable node set of a power distribution network; according to a preset double-layer multiple linear regression framework, optimizing the incomplete measurement linear power flow model, and constructing a double-layer power flow model representing a linear relationship between measurable nodes and non-measurable nodes of the power distribution network; and acquiring load flow data of measurable nodes in the power distribution network in real time, inputting the acquired load flow data of the measurable nodes into the double-layer load flow model, calculating load flow data of non-measurable nodes, and obtaining load flow states of all the nodes of the power distribution network. According to the invention, the complete and accurate power flow state of the power distribution network can be obtained without measuring all nodes of the power distribution network, and the measurement cost is saved.

The application discloses a continuous beam line shape monitoring system, method, computer device and storage medium, and relates to the construction engineering information technology field.The continuous beam line shape monitoring system comprises a bridge management module, a measurement management module and a calculation management module, wherein the bridge management module is used for managing continuous beam basic information and performing bridge initialization according to an actual structure of the continuous beam; the measurement management module is used for dividing the whole continuous beam into a plurality of beam sections, and acquiring measurement values of a plurality of measuring points under different construction procedures of each beam section relative to a certain base point; and the calculation management module is used for judging whether an error between a measured value and a theoretical value of the beam section exceeds a normal value, and if yes, recording the beam section as an out-of-limit beam section.The application can automatically identify the out-of-limit beam section, reduces the construction measurement cost, improves the construction efficiency, automatically and intelligently judges the measurement result, eliminates the loophole of manually modifying the measurement result, and improves the construction quality.The application is widely applied to the construction engineering information technology field.

The invention belongs to the technical field of material analysis, and provides an elastic constant measuring method and system and an ultrasonic device.According to the method, a sandwich structure is combined and placed in an acoustic coupling medium, ultrasonic data penetrating through the sandwich structure are collected in a transmission-type omnidirectional ultrasonic mode, a five-layer sound ray tracking model can be constructed, and the elastic constant can be measured; and by utilizing a particle swarm optimization algorithm, the optimal ultrasonic sound velocity is calculated by comparing the actual propagation time of the ultrasonic waves in the five-layer sound ray tracking model with the predicted propagation time, and then the elastic constant of the to-be-tested material is obtained. According to the scheme provided by the invention, the problem that a thin-layer material ultrasonic characterization method in the prior art is easily influenced by a measurement error introduced by wrinkles is solved, an idealized measurement environment state is provided, and the equipment complexity and the measurement cost are reduced by innovatively utilizing a transmission-type omnidirectional ultrasonic mode; lossless, accurate and reliable measurement of the elastic constant of the material is realized.

This invention relates to the field of measuring tool technology and provides a precision measuring instrument for internal and external diameters. It includes two fixed tubes arranged side-by-side, with their ends connected by fixed blocks. Each fixed tube is equipped with an adjustment module, a measuring block assembly, a display module, and a probe adjustment assembly. This device uses a comparative measurement method to quickly and accurately cover the full-size measurement range of 300mm-3000mm, effectively reducing measurement costs. The device can reduce the influence of temperature and measuring force on dimensions and can be used for measuring and inspecting parts with small steps.

The application provides a three-dimensional pavement modeling method, and relates to the field of three-dimensional pavement modeling, and comprises the following steps: obtaining the difference from the average elevation of the starting cross section to the average elevation of the ending cross section in the original three-dimensional pavement data, determining the cross section with the difference greater than a preset threshold as a jump surface, processing the original three-dimensional pavement data, and obtaining all divided road sections; constructing first time series data according to the average elevation of all cross sections of each divided road section, converting the first time series data into first frequency data, and obtaining the pitch and vibration elevations; constructing second time series data according to the slope of all cross sections of each divided road section, converting the second time series data into second frequency data, and obtaining the roll angle of the corresponding measurement posture of each cross section; and correcting the original three-dimensional pavement data according to the pitch and vibration elevations and the roll angle, so as to complete three-dimensional pavement modeling. The application overcomes the measurement precision defects caused by the measurement posture, improves the measurement precision, and reduces the measurement cost.

Disclosed in the present application are a wafer polishing method and apparatus, a device, and a storage medium. The present application allows for accurate monitoring of wear of grinding wheels, has a simple and rapid operation process, and does not need other expensive specialized measurement instruments, reducing dependence on specialized devices and operators, reducing the operational complexity and measurement costs, reducing time waste caused by complicated measurement and computation processes, and solving the technical problems in the prior art of low accuracy and long time consumption during wear detection of grinding wheels.

The present invention discloses a device for accurately locating the position of the internal parts of a lock, which is used to detect each blade arranged in an array on the lock core inside the lock, including: a scale plate is arranged on one side or two opposite sides of a fixed seat, and a plurality of scale grooves are arranged in an array on the inner side of the scale plate; a detection piece is movably arranged in the fixed seat, and both ends of the detection piece extend out of the fixed seat, an elastic component is arranged in the detection piece, and the elastic component part protrudes from the surface of the detection piece and can be engaged with the scale groove, and a sensor is arranged on the part of the detection piece extending into the lock; one end of the bracket is movably arranged in the fixed seat, and the other end extends out of the fixed seat, and the length of the bracket extending out of the fixed seat can be adjusted, wherein the bracket and the sensor are arranged on the same side of the fixed seat. The device can accurately locate the position of the internal parts of the lock without disassembling the lock, and then detect through the sensor on the detection piece, which can greatly save measurement costs and shorten the measurement cycle.

The application discloses a kind of power-based air compressor flow measurement method and measuring device, the power-based flow calculation formula of the present application replaces measuring device to obtain air compressor operating flow, improves the measurement accuracy, effectively reduces the measurement cost, avoids the problems such as high installation and use condition requirement, large measurement error and additional pressure loss when using differential pressure flow measuring device;And can efficiently and quickly obtain air compressor operating flow, when operating condition changes, still can obtain flow result at any time, eliminates the debugging adaptation process of flow measurement device, and the measurement result is more accurate.

The present invention belongs to the field of ocean wave feature extraction, and specifically relates to a method for inverting sea wave features based on reverse echo measurement, which includes the following steps: obtaining the echo signal from the seabed to the ocean surface, performing adaptive time window smoothing processing on the echo signal, and performing outlier identification and missing data filling on the data after smoothing processing; using the improved Tukey method to remove outliers and using the piecewise cubic spline interpolation method to fill in the missing data; obtaining the sea wave echo signal with the low-frequency trend removed through high-pass filtering and detrending processing; selecting an appropriate time window to calculate the dispersion of the echo time, establishing a mathematical relationship between the dispersion and the significant wave height through a regression algorithm, and substituting the observed data into the equation to obtain the inversion result of the significant wave height. The present invention performs feature inversion on sea waves based on reverse echo measurement technology, effectively improving the accuracy of sea wave feature extraction, reducing the on-site measurement cost, and providing a stable and low-cost sea wave measurement method.