Surge parameter acquisition method and device, equipment and medium

Abstract

The invention provides a surge parameter acquisition method and device, equipment and a medium, and the method comprises the steps: carrying out the data scanning of a target sea surface region, and obtaining an initial region oscillogram of the target sea surface region; according to the initial region oscillogram, generating a target region map of the target sea surface region; and extracting a target surge map of the target sea surface region from the target region map to obtain a target surge parameter of the target sea surface region. Corresponding surge measurement equipment does not need to be configured in the target sea surface area, the measurement cost and the operation and maintenance cost of the surge parameters are reduced, the target surge parameters are extracted through the target surge map, the measurement efficiency and the measurement precision of the surge parameters are improved, and the measurement accuracy is improved. The influence degree of surge abnormity on the operation safety and stability of the offshore wind power equipment is reduced, and the surge parameter measuring method is optimized.

Description

Technical Field

[0001] The present application relates to the technical field of offshore wind power equipment, and in particular to a method, device, equipment and medium for obtaining surge parameters. Background Art

[0002] With the development of new energy technology, offshore wind power, as an important part of new energy, has great development potential. During the generation of offshore wind power, the sea wave conditions have a certain degree of impact on the safe operation of offshore wind power projects.

[0003] In the related technology, the sea surface surge conditions can be measured by means of buoys or wave measuring radars set on the sea surface, but the cost is high and the data accuracy is poor. Therefore, it is very important to obtain accurate sea surface surge parameters. Summary of the invention

[0004] The purpose of this application is to solve one of the technical problems in the above technology at least to a certain extent.

[0005] The first aspect of the present application provides a method for obtaining surge parameters, comprising: performing data scanning on a target sea surface area to obtain an initial area waveform diagram of the target sea surface area; generating a target area spectrum of the target sea surface area based on the initial area waveform diagram; and extracting a target surge spectrum of the target sea surface area from the target area spectrum to obtain target surge parameters of the target sea surface area.

[0006] The first aspect of the present application provides a method for obtaining surge parameters, which also has the following technical features, including:

[0007] According to one embodiment of the present application, generating a target area spectrum of the target sea surface area based on the initial area waveform diagram includes: converting the initial area waveform diagram from the spatial domain to the frequency domain to obtain a converted candidate area waveform diagram; extracting frequency amplitude characteristics and frequency phase characteristics in the candidate area waveform diagram to obtain waveform characteristic parameters of the candidate area waveform diagram; and performing spectrum drawing on the waveform characteristic parameters to obtain the target area spectrum of the target sea surface area.

[0008] According to one embodiment of the present application, the waveform characteristic parameters are plotted to obtain the target area map of the target sea surface area, including: acquiring the wave number space of the candidate area waveform map, and generating a corresponding spectrum intensity map in the wave number space according to the candidate area waveform map; extracting high-frequency components and low-frequency components in the spectrum intensity map, and plotting the spectrum according to the high-frequency components and the low-frequency analysis to obtain the target area map.

[0009] According to one embodiment of the present application, extracting a target surge map of the target sea surface area from the target area map to obtain target surge parameters of the target sea surface area includes: extracting a wind wave map of the target sea surface area from the target area map; acquiring a surge map algorithm preset for the target area map, and obtaining a target surge map in the target area map based on the wind wave map according to the surge map algorithm; and performing parameter extraction on the target surge map to obtain the extracted target surge parameters.

[0010] According to one embodiment of the present application, the target surge parameters include at least surge wavelength parameters, surge height parameters, surge direction parameters and surge period parameters of the target sea surface area.

[0011] According to one embodiment of the present application, the data scanning of the target sea surface area to obtain the initial area waveform diagram of the target sea surface area includes: scanning the target sea surface area by means of a synthetic aperture radar to obtain an initial synthetic aperture radar scanning signal of the target sea surface area; preprocessing the initial synthetic aperture radar scanning signal to obtain a preprocessed candidate synthetic aperture radar scanning signal; and waveform drawing based on the candidate synthetic aperture radar scanning signal to obtain the initial area waveform diagram of the target sea surface area.

[0012] According to one embodiment of the present application, the method also includes: identifying whether there are abnormal surge parameters in the target surge parameters; obtaining coordinate information of each pixel point in the target area map, and determining the abnormal sea surface area corresponding to the abnormal surge parameters in the target sea surface area based on the coordinate information; and issuing a surge abnormality alarm for the abnormal sea surface area.

[0013] The second aspect of the present application provides a surge parameter acquisition device, comprising: a scanning module, used to perform data scanning on a target sea surface area to obtain an initial area waveform diagram of the target sea surface area; a generating module, used to generate a target area map of the target sea surface area based on the initial area waveform diagram; and an extracting module, used to extract a target surge map of the target sea surface area from the target area map to obtain target surge parameters of the target sea surface area.

[0014] The second aspect of the present application provides a surge parameter acquisition device, which also has the following technical features, including:

[0015] According to one embodiment of the present application, the generation module is also used to: obtain the wave number space of the candidate area waveform diagram, and generate a corresponding spectrum intensity diagram in the wave number space based on the candidate area waveform diagram; extract the high-frequency components and low-frequency components in the spectrum intensity diagram, and draw a spectrum based on the high-frequency components and the low-frequency analysis to obtain the target area spectrum.

[0016] According to one embodiment of the present application, the extraction module is further used to: extract the wind and wave map of the target sea area from the target area map; obtain the surge wave map algorithm preset for the target area map, and obtain the target surge wave map in the target area map based on the wind and wave map according to the surge wave map algorithm; perform parameter extraction on the target surge wave map to obtain the extracted target surge wave parameters.

[0017] According to one embodiment of the present application, the target surge parameters include at least surge wavelength parameters, surge height parameters, surge direction parameters and surge period parameters of the target sea surface area.

[0018] According to one embodiment of the present application, the scanning module is also used to: scan the target sea surface area through a synthetic aperture radar to obtain an initial synthetic aperture radar scanning signal of the target sea surface area; preprocess the initial synthetic aperture radar scanning signal to obtain a preprocessed candidate synthetic aperture radar scanning signal; draw a waveform graph based on the candidate synthetic aperture radar scanning signal to obtain the initial area waveform graph of the target sea surface area.

[0019] According to one embodiment of the present application, the device also includes an alarm module, which is used to: identify whether there are abnormal surge parameters in the target surge parameters; obtain coordinate information of each pixel point in the target area map, and determine the abnormal sea surface area corresponding to the abnormal surge parameters in the target sea surface area based on the coordinate information; and issue a surge abnormality alarm for the abnormal sea surface area.

[0020] The third aspect embodiment of the present application provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the surge parameter acquisition method provided in the first aspect of the present application.

[0021] The fourth aspect of the present application provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to execute the surge parameter acquisition method provided in the first aspect of the present application.

[0022] The fifth aspect of the present application provides a computer program product. When the instruction processor in the computer program product is executed, the surge parameter acquisition method provided in the first aspect of the present application is executed.

[0023] The surge parameter acquisition method and device provided in the present application perform data scanning on the target sea surface area to obtain the initial regional waveform of the target sea surface area, and generate the target regional spectrum corresponding to the target sea surface area according to the initial regional waveform, extract the target surge spectrum of the target sea surface area from the target regional spectrum, and extract the target surge parameters of the target sea surface area from the target surge spectrum. In the present application, the target regional spectrum corresponding to the initial regional waveform obtained by data scanning the target sea surface area is extracted to obtain the target surge parameters of the target sea surface area. Compared with the measurement of surge parameters by hardware equipment set on the sea surface such as a buoy or a wave measurement radar in the related art, there is no need to configure the corresponding surge measurement equipment in the target sea surface area, which reduces the measurement cost and operation and maintenance cost of the surge parameters. The target surge parameters are extracted by the target surge spectrum, which improves the measurement efficiency and measurement accuracy of the surge parameters, reduces the influence of surge anomalies on the safety and stability of the operation of offshore wind power equipment, and optimizes the measurement method of surge parameters.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0026] Figure 1 A schematic diagram of a surge parameter acquisition method according to an embodiment of the present application;

[0027] Figure 2 A schematic diagram of a surge parameter acquisition method according to another embodiment of the present application;

[0028] Figure 3 A schematic diagram of a surge parameter acquisition method according to another embodiment of the present application;

[0029] Figure 4 A schematic diagram of a surge parameter acquisition method according to another embodiment of the present application;

[0030] Figure 5 This is a schematic diagram of the structure of a surge parameter acquisition device according to an embodiment of the present application;

[0031] Figure 6 It is a block diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0033] The surge parameter acquisition method, device, equipment and medium of the embodiments of the present application are described below with reference to the accompanying drawings.

[0034] Figure 1 FIG. 1 is a flow chart of a method for obtaining surge parameters according to an embodiment of the present application. Figure 1 As shown, the method includes:

[0035] S101, performing data scanning on a target sea surface area to obtain an initial regional waveform diagram of the target sea surface area.

[0036] In an embodiment of the present application, the sea surface area that needs to be monitored for surge can be marked as a target sea surface area. By scanning the target sea surface area, the surge data in the target sea surface area can be extracted, and then based on the extracted surge data, it can be identified whether there are safety hazards in the surge situation in the target sea surface area.

[0037] Optionally, data scanning of the target sea surface area can be performed based on a preset data scanning device, thereby realizing surge monitoring of the target sea surface area, wherein the data scanning device can be a synthetic aperture radar satellite or other device that can realize data scanning of the target sea surface area, which is not specifically limited here.

[0038] As a possible implementation method, the data of the target sea surface area can be scanned by a synthetic aperture radar satellite, wherein the scanned data may include the antenna incidence angle, surface element resolution, sub-satellite point beam inversion accuracy, effective wave height, wind speed, wave direction accuracy, wave height energy density spectrum accuracy and 3dB peak width range of the target sea surface area, and may also include other data that can be scanned in the target sea surface area, which is not specifically limited here.

[0039] Furthermore, according to the waveform drawing algorithm in the relevant technology, the data scanned from the target sea surface area is algorithmically processed, and the waveform drawing corresponding to the scanned data of the target sea surface area is achieved through algorithm processing, thereby obtaining the corresponding waveform graph, and marking the waveform graph as the initial area waveform graph of the target sea surface area.

[0040] S102, generating a target area map of the target sea surface area according to the initial area waveform map.

[0041] In the embodiment of the present application, the atlas carrying the surge parameter information in the target sea surface area can be marked as the target area atlas of the target sea surface area.

[0042] Among them, the target area map can be a SAR map. In this scenario, the initial area waveform map can be algorithmically processed according to the SAR map generation algorithm in the relevant technology, and the SAR map corresponding to the initial area waveform map is obtained through the result of the algorithm processing as the target area map of the target sea surface area.

[0043] S103, extracting a target surge map of the target sea surface area from the target area map to obtain target surge parameters of the target sea surface area.

[0044] In an embodiment of the present application, the target area map of the target sea surface area may include other information of the target sea surface area in addition to the wave information of the target sea surface area. In this scenario, it is necessary to extract the associated map of the wave from the target area map, and extract relevant parameter information of the wave on the target sea surface area from the associated map of the wave.

[0045] Among them, the associated map of surges extracted from the target area map can be marked as the target surge map.

[0046] Optionally, the target surge map can be processed algorithmically based on the map information extraction algorithm in the relevant technology, and the parameter information of the surge existing in the target sea surface area within the data acquisition time range corresponding to the target area map can be extracted from the target surge map through the result of the algorithm processing, and marked as the target surge parameters of the target sea surface area.

[0047] It should be noted that the target surge parameters may include parameters such as the wave height, wavelength, wave direction and surge wave period of the surge waves existing in the target sea surface area within the corresponding data collection time range, which are not specifically limited here.

[0048] The surge parameter acquisition method proposed in the present application performs data scanning on the target sea surface area to obtain an initial regional waveform diagram of the target sea surface area, generates a target regional spectrum corresponding to the target sea surface area according to the initial regional waveform diagram, extracts a target surge spectrum of the target sea surface area from the target regional spectrum, and extracts the target surge parameters of the target sea surface area from the target surge spectrum. In the present application, the target regional spectrum corresponding to the initial regional waveform diagram obtained by data scanning the target sea surface area is extracted to obtain the target surge parameters of the target sea surface area. Compared with the measurement of surge parameters by hardware equipment set on the sea surface such as a buoy or a wave measurement radar in the related art, there is no need to configure the corresponding surge measurement equipment in the target sea surface area, which reduces the measurement cost and operation and maintenance cost of the surge parameters. The target surge parameters are extracted by the target surge spectrum, which improves the measurement efficiency and measurement accuracy of the surge parameters, reduces the influence of surge anomalies on the safety and stability of offshore wind power equipment operation, and optimizes the measurement method of surge parameters.

[0049] In the above embodiment, the acquisition of target surge parameters can also be combined with Figure 2 Further understanding, Figure 2 FIG. 1 is a flow chart of a method for obtaining surge parameters in another embodiment of the present application. Figure 2 As shown, the method includes:

[0050] S201, performing data scanning on a target sea surface area to obtain an initial regional waveform diagram of the target sea surface area.

[0051] Optionally, the target sea surface area is scanned by a synthetic aperture radar to obtain an initial synthetic aperture radar scanning signal of the target sea surface area, and the initial synthetic aperture radar scanning signal is preprocessed to obtain a preprocessed candidate synthetic aperture radar scanning signal.

[0052] In an embodiment of the present application, the target sea surface area can be scanned by the data scanning function of the pre-set synthetic aperture radar configuration, and the scanned data signal is marked as the initial synthetic aperture radar scanning signal of the target sea surface area.

[0053] Optionally, the synthetic aperture radar can perform data scanning on the target sea surface area based on a preset data scanning period on its preset operating track, wherein the synthetic aperture radar can emit a corresponding microwave signal to the target sea surface area, and capture the return signal of the target sea surface area through a configured signal receiver, thereby obtaining an initial synthetic aperture radar scanning signal of the target sea surface area.

[0054] In an embodiment of the present application, redundant signal data may exist in the initial synthetic aperture radar scanning signal captured by the synthetic aperture radar. In this scenario, data preprocessing can be performed on the initial synthetic aperture radar scanning data, wherein redundant signals including noise signals and spurious signals in the initial synthetic aperture radar scanning signal can be identified, and the identified redundant signals can be filtered and deleted from the initial synthetic aperture radar scanning signal to achieve data preprocessing of the initial synthetic aperture radar scanning signal, and the preprocessed signal can be marked as a candidate synthetic aperture radar scanning signal.

[0055] Optionally, a waveform graph is drawn according to the candidate synthetic aperture radar scanning signal to obtain an initial area waveform graph of the target sea surface area.

[0056] As a possible implementation method, the initial synthetic aperture radar scanning signal can be based on waveform data as a signal carrier. In this scenario, the candidate synthetic aperture radar scanning signal can be expressed as waveform data. Then, the waveform data corresponding to the candidate synthetic aperture radar scanning signal can be drawn and processed based on the drawing algorithm for drawing a waveform graph based on waveform data in the related technology to obtain a drawn waveform graph, wherein the waveform graph can be marked as the initial area waveform graph of the target sea surface area.

[0057] As another possible implementation method, the initial synthetic aperture radar scanning signal can be transmitted based on other forms of carriers. In this case, the signal carrier corresponding to the initial synthetic aperture radar scanning signal in the scene can be obtained, and the drawing method used for drawing the waveform diagram of the signal carrier form can be obtained. Then, the candidate synthetic aperture radar scanning signal can be drawn and processed based on the drawing method, so as to obtain the initial area waveform diagram of the drawn target sea surface area.

[0058] S202, generating a target area map of the target sea surface area according to the initial area waveform map.

[0059] Optionally, the initial region waveform image is converted from the spatial domain to the frequency domain to obtain a converted candidate region waveform image.

[0060] In the embodiment of the present application, the initial region waveform image can be transformed by a Fourier transform processing method, thereby realizing the conversion of the initial region waveform image from the spatial domain to the frequency domain.

[0061] As an example, the initial area waveform can be converted from the spatial domain of the physical space to the frequency domain of any function f(t) or f(r) that varies with time or space through a preset algorithm formula, as shown below:

[0062]

[0063]

[0064] In the above formula, f(t) or f(r) represents any function that changes with time or space, I(w) represents the weight coefficient of the function f(t), and I(k) represents the weight coefficient of the function f(r). I(w) and I(k) can be referred to the following formula:

[0065]

[0066]

[0067] In the above formula, t represents the time series, r represents the spatial development direction (surge waves generally develop in a circumferential direction), w represents the frequency variable, k represents the wave number, and e represents the natural logarithm.

[0068] Furthermore, the waveform image obtained after the initial region waveform image is converted from the space domain to the frequency domain is marked as the candidate region waveform image.

[0069] It should be noted that before converting the initial region waveform image from the spatial domain to the frequency domain, the initial region waveform image may also be subjected to image preprocessing, wherein the initial region waveform image may be subjected to image preprocessing such as denoising, smoothing and / or sharpening, and the initial region waveform image after image preprocessing may be converted from the spatial domain to the frequency domain, thereby obtaining a candidate region waveform image after the conversion.

[0070] Optionally, frequency amplitude features and frequency phase features in the candidate area waveform map are extracted to obtain waveform feature parameters of the candidate area waveform map, and the waveform feature parameters are graphed to obtain a target area graph of the target sea surface area.

[0071] In an embodiment of the present application, the spectrum of the spectrum can be obtained through the energy distribution of the image at different frequencies in the frequency domain, and then the detailed information of the frequency can be obtained through the amplitude spectrum or power spectrum of the Fourier transform, and then the corresponding spectrum can be obtained, wherein the amplitude spectrum can be understood as the amplitude of the spectrum, and the power spectrum can be understood as the square of the amplitude.

[0072] In this scenario, in order to obtain the target area map of the target sea surface area, the frequency characteristic information in the candidate area waveform map can be obtained, and the map can be drawn according to the frequency characteristic information to obtain the target area map of the target sea surface area.

[0073] Optionally, the candidate area waveform graph can be processed by a feature extraction algorithm according to the amplitude and phase feature extraction algorithm in the relevant technology, and the amplitude feature information and phase feature information in the candidate area waveform graph are extracted from the results of the algorithm processing and marked as frequency amplitude features and frequency phase features in the candidate area waveform graph, respectively.

[0074] Furthermore, the frequency amplitude features and frequency phase features extracted from the candidate region waveform image are used as waveform feature parameters of the candidate region waveform image.

[0075] In an embodiment of the present application, the target area map of the target sea surface area may be a synthetic aperture radar spectrum (SAR spectrum). In this scenario, a drawing algorithm based on the waveform characteristic parameters of the candidate area waveform map may be performed based on the drawing algorithm of the SAR spectrum in the related technology, and then a SAR spectrum drawn based on the waveform characteristic parameters may be obtained as the target area map of the target sea surface area.

[0076] Optionally, the wave number space of the candidate area waveform graph can be obtained, and a corresponding spectrum intensity graph can be generated in the wave number space based on the candidate area waveform graph, high-frequency components and low-frequency components in the spectrum intensity graph can be extracted, and a spectrum can be drawn based on the high-frequency components and the low-frequency components to obtain a target area spectrum.

[0077] In an embodiment of the present application, there is a corresponding wavenumber space for the candidate area waveform diagram. In the two-dimensional frequency domain, the horizontal axis and vertical axis of the Fourier transform respectively represent the horizontal frequency component and vertical frequency component of the image. Based on this description, the wavenumber space corresponding to the candidate area waveform diagram can be obtained.

[0078] It should be noted that the spectrum information of the candidate area waveform can be visualized through the wavenumber space of the candidate area waveform. In this scenario, the spectrum information of the candidate area waveform can be extracted in the wavenumber space, and then the corresponding intensity map is generated according to the extracted spectrum information and marked as a spectrum intensity map, wherein the spectrum intensity map can be a color image, and the display of spectrums of different intensities is achieved through color blocks of different colors, and the spectrum intensity map can also be a grayscale image, and the display of spectrums of different intensities is achieved through color blocks of different grayscales. No specific limitation is made here.

[0079] Optionally, the spectrum intensity graph has preset high-frequency conditions and low-frequency conditions. In this scenario, the spectrum intensity graph can be algorithmically processed according to the frequency component extraction algorithm in the relevant technology to extract multiple frequency components from the spectrum intensity graph.

[0080] Furthermore, the extracted multiple frequency components are compared with the high-frequency condition and the low-frequency condition respectively, wherein the frequency components matching the high-frequency condition can be marked as the high-frequency components extracted from the spectrum intensity graph, and the frequency components matching the low-frequency condition can be marked as the low-frequency components extracted from the spectrum intensity graph.

[0081] It should be noted that the high-frequency components extracted from the spectrum intensity diagram can be used to characterize the detail features and edge features and other related feature information in the waveform diagram of the candidate region, and the low-frequency components can be used to characterize the overall structural features and background features and other related feature information in the waveform diagram of the candidate region.

[0082] In this scenario, a spectrum can be generated based on the extracted high-frequency components and low-frequency components, wherein the high-frequency components and the low-frequency components can be processed according to the SAR spectrum drawing method in the relevant technology, and then the corresponding spectrum can be obtained as the target area spectrum based on the result of the drawing process.

[0083] S203, extracting a target surge map of the target sea surface area from the target area map to obtain target surge parameters of the target sea surface area.

[0084] Optionally, a wind and wave map of the target sea surface area is extracted from the target area map.

[0085] In an embodiment of the present application, the target area map carries partial map information characterizing the wind and wave conditions in the target sea area. The partial map can be extracted and the extracted map can be marked as the wind and wave map in the target area map.

[0086] Optionally, a surge map algorithm preset in the target area map is obtained, and a target surge map in the target area map is obtained according to the surge map algorithm based on the wind wave map.

[0087] In an embodiment of the present application, the target area map also includes partial map information that can be used to characterize the swell conditions in the target sea surface area, and the partial map can be marked as a target swell map in the target area map.

[0088] In this scenario, a preset surge map extraction algorithm can be obtained and marked as a surge map algorithm, and the surge map extraction process is performed from the target area map according to the algorithm, and then the extracted map is marked as the target surge map in the target area map.

[0089] As an example, the algorithm formula of the surge map algorithm can be shown as follows:

[0090]

[0091] In the above formula, F swell represents the surge spectrum, F ws represents the wind and wave spectrum, p(k) represents the energy distribution of the synthetic aperture radar scanning signal in the wave number space, k represents the wave number, and in the target area spectrum p obs (k), the noise level p of the clutter echo clWhen the relevant information is determined, the surge spectrum in the above formula can be shown as follows:

[0092]

[0093] Optionally, parameters are extracted from the target surge map to obtain extracted target surge parameters.

[0094] In the embodiment of the present application, the target surge map carries relevant parameter information of the surge conditions in the target sea surface area, which can be marked as the target surge parameters extracted from the target surge map.

[0095] The target surge parameters include at least the surge wavelength parameter, surge height parameter, surge direction parameter and surge period parameter of the target sea surface area.

[0096] In this scenario, the target surge wave spectrum can be algorithmically processed according to the spectrum parameter extraction algorithm in the relevant technology, and then the surge wavelength parameters, surge wave height parameters, surge wave direction parameters and surge wave period parameters of the surge waves in the target sea surface area can be extracted from the target surge wave spectrum according to the results of the algorithm processing, so as to obtain the target surge wave parameters corresponding to the target sea surface area.

[0097] As an example, Figure 3 As shown, it can be based on Figure 3 The parameter extraction algorithm flow shown extracts parameters from the target surge map, and then obtains the target surge parameters in the target surge map.

[0098] like Figure 3 As shown, the initial synthetic aperture radar scanning signal obtained by the synthetic aperture radar scanning can be preprocessed by signal modulation through the signal modulation module to obtain a candidate synthetic aperture radar scanning signal, and then the target area map corresponding to the target sea surface area is obtained based on the candidate synthetic aperture radar scanning signal through the image spectrum generation module 52. Further, the target area map is subjected to frequency filtering, texture analysis features, edge features and other feature information extraction, and then the target surge parameters corresponding to the target sea surface area are obtained based on the extracted feature information.

[0099] In this example, the algorithm for the signal modulation module to perform signal modulation preprocessing on the initial synthetic aperture radar scanning signal can be understood in combination with the following expression:

[0100]

[0101] In the above formula, m identifies the modulated candidate synthetic aperture radar scanning signal output by the signal adjustment module, i represents the horizontal grid node, j represents the vertical grid node, I represents the surge parameters, including wavelength, wave height, etc., and mean represents the average surge value of one stage of time of I.

[0102] And, the algorithm corresponding to the image spectrum module can be understood in combination with the following expression:

[0103] S = FFT(m)

[0104] In the above formula, S represents the target area spectrum output by the image spectrum module, and m represents the candidate synthetic aperture radar scanning signal output by the signal adjustment module.

[0105] like Figure 3 As shown, the frequency analysis can be performed on the target area map through the preset energy analysis algorithm, so as to extract the frequency filtering, texture analysis features and edge features in the target area map, which can be understood in combination with the following formula:

[0106]

[0107] In the above formula, E represents the characteristic information extracted from the target area map based on the preset energy analysis algorithm, θ represents the wave direction, and k represents the wave number.

[0108] As another example, the acquisition of relevant parameters such as surge wavelength parameter, surge height parameter, surge direction parameter and surge period parameter included in the target surge parameters can be understood in combination with the following formula:

[0109] F(f)=∫F swell (k)dkdfdθ

[0110]

[0111]

[0112]

[0113] In the above formula, F(f) represents the frequency spectrum obtained by transforming the two-dimensional wave space into the one-dimensional frequency spectrum, Hs represents the surge wave height, k represents the wave number, wherein the number of k can be set to 24, and the 24 k each represent a different frequency band, representing the θ surge wave direction, wherein the number of θ can be set to 36, which are equally spaced in the interval [0,2π], f1 represents the upper limit of the frequency of the calculated spectrum, and f2 represents the lower limit of the frequency of the calculated spectrum.

[0114] The surge parameter acquisition method proposed in the present application extracts the target surge wave spectrum from the target area spectrum corresponding to the initial area waveform diagram obtained by data scanning the target sea surface area, thereby obtaining the target surge wave parameters of the target sea surface area. Compared with the related art of measuring surge wave parameters by hardware equipment set on the sea surface such as buoys or wave measuring radars, there is no need to configure corresponding surge wave measurement equipment in the target sea surface area, which reduces the measurement cost and operation and maintenance cost of surge wave parameters. The target surge wave parameters are extracted by the target surge wave spectrum, which improves the measurement efficiency and measurement accuracy of surge wave parameters, reduces the influence of surge abnormalities on the safety and stability of offshore wind power equipment operation, and optimizes the measurement method of surge wave parameters.

[0115] In the embodiment of the present disclosure, after obtaining the target surge parameters, an abnormal surge warning can be issued to the target sea surface area according to the target surge parameters. Figure 4 understand, Figure 4 FIG. 1 is a flow chart of a method for obtaining surge parameters according to another embodiment of the present application. Figure 4 As shown, the method includes:

[0116] S401, identifying whether there are abnormal surge parameters in the target surge parameters.

[0117] In the embodiment of the present application, preset abnormal identification conditions for parameters such as surge wave height, surge wave wavelength, surge wave direction and surge wave period of the surge wave included in the target surge wave parameters can be obtained, and abnormal identification can be performed on each surge wave parameter according to the obtained abnormal identification conditions.

[0118] It can be understood that, for any surge parameter, when the surge parameter matches its corresponding abnormal identification condition, it can be determined that the surge parameter is abnormal and can be marked as an abnormal surge parameter.

[0119] S402, obtaining coordinate information of each pixel point in the target area map, and determining the abnormal sea surface area corresponding to the abnormal surge parameter in the target sea surface area according to the coordinate information.

[0120] In an embodiment of the present application, there is a corresponding relationship between each pixel point in the target area map and each area point in the target sea surface area. Based on the corresponding relationship, the corresponding area point of each pixel point on the target sea surface area can be determined, and then the coordinate information of each pixel point can be determined based on the coordinate information of each area point in the target sea surface area.

[0121] The coordinate information of each pixel point may be obtained based on the earth coordinate system, or based on other preset types of coordinate systems, which are not specifically limited here.

[0122] Optionally, when abnormal surge parameters are identified, the abnormal pixel points corresponding to the abnormal surge parameters in the target area map can be obtained, and then the coordinate information of the abnormal pixel points can be determined based on the coordinate information of each pixel point, and the area in the target sea surface area with the same position as the coordinate information is marked as the abnormal sea surface area corresponding to the abnormal surge parameters in the target sea surface area.

[0123] S403, issuing an abnormal surge alarm for the abnormal sea surface area.

[0124] In the embodiment of the present application, relevant information of abnormal surge parameters corresponding to the abnormal sea surface area can be obtained, and corresponding alarm information can be generated based on the obtained information.

[0125] Furthermore, based on the warning information, an abnormal surge warning is issued for the abnormal sea surface area, wherein the warning information can be transmitted to relevant staff based on a preset communication method, thereby realizing the abnormal surge warning for the abnormal sea surface area.

[0126] The warning information may be generated in the form of graphics or text, or in the form of data, which is not specifically limited here.

[0127] The surge parameter acquisition method proposed in the present application identifies whether there is an abnormal surge area in the target sea surface area through the target surge parameters, and issues an abnormal surge alarm for the area after the abnormal surge area is identified, thereby improving the accuracy and timeliness of the abnormal surge alarm in the sea surface area, thereby improving the safety and stability of the operation of offshore wind power equipment.

[0128] Corresponding to the surge parameter acquisition methods proposed in the above-mentioned embodiments, an embodiment of the present application further proposes a surge parameter acquisition device. Since the surge parameter acquisition device proposed in the embodiment of the present application corresponds to the surge parameter acquisition methods proposed in the above-mentioned embodiments, the implementation method of the above-mentioned surge parameter acquisition method is also applicable to the surge parameter acquisition device proposed in the embodiment of the present application, and will not be described in detail in the following embodiments.

[0129] Figure 5 FIG. 1 is a schematic diagram of the structure of a surge parameter acquisition device according to an embodiment of the present application. Figure 5 As shown, the surge parameter acquisition device 500 includes a scanning module 51, a generating module 52 and an extracting module 53, wherein:

[0130] The scanning module 51 is used to perform data scanning on the target sea surface area to obtain an initial area waveform diagram of the target sea surface area;

[0131] A generating module 52, for generating a target area map of the target sea surface area according to the initial area waveform map;

[0132] The extraction module 53 is used to extract the target surge map of the target sea surface area from the target area map to obtain the target surge parameters of the target sea surface area.

[0133] In the embodiment of the present application, the generating module 52 is further used to: convert the initial region waveform image from the spatial domain to the frequency domain to obtain the converted candidate region waveform image; extract the frequency amplitude feature and the frequency phase feature in the candidate region waveform image to obtain the waveform feature parameters of the candidate region waveform image;

[0134] Score.

[0135] In an embodiment of the present application, the generation module 52 is also used to: obtain the wave number space of the candidate area waveform diagram, and generate a corresponding spectrum intensity diagram in the wave number space according to the candidate area waveform diagram; extract the high frequency components and low frequency components in the spectrum intensity diagram, and draw a spectrum based on the high frequency components and low frequency analysis to obtain a target area spectrum.

[0136] In the embodiment of the present application, the extraction module 53 is also used to: extract the wind and wave map of the target sea area from the target area map; obtain the surge map algorithm preset in the target area map, and obtain the target surge map in the target area map based on the wind and wave map according to the surge map algorithm; perform parameter extraction on the target surge map to obtain the extracted target surge parameters.

[0137] In the embodiment of the present application, the target surge parameters at least include surge wavelength parameters, surge height parameters, surge direction parameters and surge period parameters of the target sea surface area.

[0138] In the embodiment of the present application, the scanning module 51 is also used to: scan the target sea surface area through a synthetic aperture radar to obtain an initial synthetic aperture radar scanning signal of the target sea surface area; preprocess the initial synthetic aperture radar scanning signal to obtain a preprocessed candidate synthetic aperture radar scanning signal; draw a waveform diagram based on the candidate synthetic aperture radar scanning signal to obtain an initial area waveform diagram of the target sea surface area.

[0139] In an embodiment of the present application, the device also includes an alarm module, which is used to: identify whether there are abnormal surge parameters in the target surge parameters; obtain the coordinate information of each pixel point in the target area map, and determine the abnormal sea surface area corresponding to the abnormal surge parameters in the target sea surface area based on the coordinate information; and issue a surge abnormality alarm for the abnormal sea surface area.

[0140] The surge parameter acquisition device proposed in the present application performs data scanning on the target sea surface area to obtain the initial regional waveform of the target sea surface area, and generates a target regional spectrum corresponding to the target sea surface area according to the initial regional waveform, extracts the target surge spectrum of the target sea surface area from the target regional spectrum, and extracts the target surge parameters of the target sea surface area from the target surge spectrum. In the present application, the target regional spectrum corresponding to the initial regional waveform obtained by data scanning the target sea surface area is extracted to obtain the target surge parameters of the target sea surface area. Compared with the measurement of surge parameters by hardware equipment set on the sea surface such as a buoy or a wave measurement radar in the related art, there is no need to configure the corresponding surge measurement equipment in the target sea surface area, which reduces the measurement cost and operation and maintenance cost of the surge parameters. The target surge parameters are extracted by the target surge spectrum, which improves the measurement efficiency and measurement accuracy of the surge parameters, reduces the influence of surge anomalies on the safety and stability of offshore wind power equipment operation, and optimizes the measurement method of surge parameters.

[0141] To achieve the above embodiments, the present application also provides an electronic device, a computer-readable storage medium and a computer program product.

[0142] Figure 6 A block diagram of an electronic device according to an embodiment of the present application, such as Figure 6 As shown, the device 600 includes a memory 61, a processor 62, and a computer program stored in the memory 61 and executable on the processor 62. When the processor 62 executes the program instructions, the execution is realized. Figures 1 to 4 A method for obtaining surge parameters of an embodiment of the present invention.

[0143] In order to implement the above embodiments, the present application also provides a non-transitory computer-readable storage medium storing computer instructions, the computer instructions are used to enable the computer to execute Figures 1 to 4 A method for obtaining surge parameters of an embodiment of the present invention.

[0144] In order to implement the above embodiment, the present application also provides a computer program product. When the instruction processor in the computer program product executes, Figures 1 to 4 A method for obtaining surge parameters of an embodiment of the present invention.

[0145] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0146] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0147] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0148] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0149] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0150] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0151] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0152] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for obtaining surge parameters, characterized in that: The method comprises: Performing data scanning on the target sea surface area to obtain an initial regional waveform diagram of the target sea surface area; Generating a target area map of the target sea surface area according to the initial area waveform map; A target surge map of the target sea surface area is extracted from the target area map to obtain target surge parameters of the target sea surface area.

2. The method according to claim 1, characterized in that Generating a target area map of the target sea surface area according to the initial area waveform map includes: Convert the initial region waveform image from the spatial domain to the frequency domain to obtain a converted candidate region waveform image; Extracting frequency amplitude features and frequency phase features from the candidate region waveform image to obtain waveform feature parameters of the candidate region waveform image; The waveform characteristic parameters are mapped to obtain the target area map of the target sea surface area.

3. The method according to claim 2, characterized in that The step of mapping the waveform characteristic parameters to obtain the target area map of the target sea surface area includes: Acquire the wave number space of the candidate region waveform image, and generate a corresponding spectrum intensity image in the wave number space according to the candidate region waveform image; The high-frequency component and the low-frequency component in the frequency spectrum intensity map are extracted, and a spectrum is drawn according to the high-frequency component and the low-frequency analysis to obtain the target area spectrum.

4. The method according to claim 1, characterized in that: The step of extracting a target surge map of the target sea surface area from the target area map to obtain target surge parameters of the target sea surface area includes: Extracting a wind and wave map of the target sea area from the target area map; Acquire a surge map algorithm preset in the target area map, and obtain a target surge map in the target area map according to the surge map algorithm based on the wind wave map; Parameters of the target surge wave spectrum are extracted to obtain the extracted target surge wave parameters.

5. The method according to claim 1, characterized in that The target surge parameters at least include surge wavelength parameters, surge height parameters, surge direction parameters and surge period parameters of the target sea surface area.

6. The method according to claim 1, characterized in that The step of performing data scanning on the target sea surface area to obtain an initial regional waveform diagram of the target sea surface area includes: Scanning the target sea surface area by synthetic aperture radar to obtain an initial synthetic aperture radar scanning signal of the target sea surface area; Preprocessing the initial synthetic aperture radar scanning signal to obtain a preprocessed candidate synthetic aperture radar scanning signal; A waveform graph is drawn according to the candidate synthetic aperture radar scanning signal to obtain the initial area waveform graph of the target sea surface area.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: Identifying whether there are abnormal surge parameters in the target surge parameters; Acquire coordinate information of each pixel point in the target area map, and determine the abnormal sea surface area corresponding to the abnormal surge parameter in the target sea surface area according to the coordinate information; An abnormal surge alarm is issued for the abnormal sea surface area.

8. A surge parameter acquisition device, characterized in that: The device comprises: A scanning module, used for performing data scanning on a target sea surface area to obtain an initial area waveform diagram of the target sea surface area; A generating module, used for generating a target area map of the target sea surface area according to the initial area waveform map; The extraction module is used to extract the target surge map of the target sea surface area from the target area map to obtain the target surge parameters of the target sea surface area.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 7.

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