Method and apparatus for band division of a floating device

Abstract

The application relates to a frequency band division method and device of a floating device, computer equipment and a storage medium. It belongs to the technical field of computers. The method comprises the following steps: obtaining a device speed response of the floating device within a preset period of time, and decomposing the device speed response to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal; determining a first transient energy response and a second transient energy response of each characteristic signal within the preset period of time according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal; comparing the first transient energy response and the second transient energy response, and determining a frequency band division result of the floating device according to the comparison result. The method can accurately obtain the frequency band division result of the floating device, realize fast and accurate division of the frequency band of the floating device, and greatly improve the design speed of the floating device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computer, in particular to a frequency band division method and device of a floating device. BACKGROUND

[0002] When designing a floating device, such as a sea floating device, the structure of the floating device itself, the environment (such as the marine environment), and special factors (such as the impact load caused by ship collision on the sea floating device) need to be considered.

[0003] When designing a floating device in combination with the above factors, the frequency band of the floating device itself needs to be considered. However, there is currently no effective method for dividing the frequency band of the floating device, resulting in slow design speed for such devices. Therefore, how to quickly and accurately divide the frequency band of the floating device is a technical problem that needs to be solved at present. SUMMARY

[0004] Therefore, it is necessary to provide a method, device, computer equipment and storage medium for quickly and accurately dividing the frequency band of a floating device.

[0005] In a first aspect, the present application provides a frequency band division method of a floating device. The method comprises:

[0006] decomposing the device speed response of the floating device in a preset time period to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal;

[0007] determining a first transient energy response and a second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal;

[0008] comparing the first transient energy response and the second transient energy response, and determining the frequency band division result of the floating device according to the comparison result.

[0009] In one embodiment, determining the first transient energy response and the second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal comprises:

[0010] determining the first transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response of each characteristic signal;

[0011] determining the second transient energy response of each characteristic frequency in the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency in the preset time period.

[0012] In one of the embodiments, the second transient energy response of each characteristic frequency within the preset time period is determined according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period, including:

[0013] The second transient energy response of each characteristic frequency within the preset time period is determined according to the characteristic frequency of each characteristic signal and the initial response value of each characteristic frequency within the preset time period through a transient statistical energy equation; wherein the initial response value is the response value corresponding to the starting moment of the preset time period of the first transient energy response.

[0014] In one of the embodiments, the first transient energy response and the second transient energy response are compared, and the frequency band division result of the floating device is determined according to the comparison result, including:

[0015] The first transient energy response and the second transient energy response corresponding to each characteristic signal are compared to determine the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0016] The frequency band division result of the floating device is determined according to the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0017] In one of the embodiments, the first transient energy response and the second transient energy response corresponding to each characteristic signal are compared to determine the frequency band corresponding to the characteristic frequency of each characteristic signal, including:

[0018] For each characteristic signal, the energy difference and the change trend between the first transient energy response and the second transient energy response corresponding to the characteristic signal are compared.

[0019] In the case of the same change trend, the frequency band corresponding to the characteristic frequency of the characteristic signal is determined according to the energy difference corresponding to the characteristic signal.

[0020] In one of the embodiments, the frequency band division result of the floating device is determined according to the frequency band corresponding to the characteristic frequency of each characteristic signal, including:

[0021] If the number of characteristic signals is more than two, the characteristic frequencies of the characteristic signals are sorted according to the sizes of the characteristic frequencies.

[0022] The target frequency is determined from the characteristic frequencies according to the frequency bands corresponding to the sorted characteristic frequencies.

[0023] The frequency band division result of the floating device is determined according to the target frequency.

[0024] In a second aspect, the application further provides a frequency band division device of a floating device. The device includes:

[0025] The acquisition module is configured to decompose the device speed response of the floating device in a preset time period to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal.

[0026] The determination module is configured to determine a first transient energy response and a second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal.

[0027] The comparison module is configured to compare the first transient energy response and the second transient energy response, and determine a frequency band division result of the floating device according to a comparison result.

[0028] In a third aspect, the present application further provides a computer device. The computer device comprises a memory and a processor. The memory stores a computer program. The processor implements the following steps when executing the computer program:

[0029] The device speed response of the floating device in a preset time period is decomposed to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal.

[0030] A first transient energy response and a second transient energy response of each characteristic signal in the preset time period are determined according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal.

[0031] The first transient energy response and the second transient energy response are compared, and a frequency band division result of the floating device is determined according to a comparison result.

[0032] In a fourth aspect, the present application further provides a computer readable storage medium. The computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the following steps:

[0033] The device speed response of the floating device in a preset time period is decomposed to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal.

[0034] A first transient energy response and a second transient energy response of each characteristic signal in the preset time period are determined according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal.

[0035] The first transient energy response and the second transient energy response are compared, and a frequency band division result of the floating device is determined according to a comparison result.

[0036] In a fifth aspect, the present application further provides a computer program product. The computer program product comprises a computer program. The computer program is executed by a processor to implement the following steps:

[0037] decompose the device velocity response of the floating device in the preset time period to obtain a characteristic velocity response and a characteristic frequency of at least one characteristic signal;

[0038] determine a first transient energy response and a second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic velocity response and the characteristic frequency of each characteristic signal;

[0039] compare the first transient energy response and the second transient energy response, and determine a frequency band division result of the floating device according to a comparison result.

[0040] The frequency band division method and device of the floating device described above obtain the device velocity response of the floating device in the preset time period, decompose the device velocity response to obtain a characteristic velocity response and a characteristic frequency of at least one characteristic signal, determine a first transient energy response and a second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic velocity response and the characteristic frequency of each characteristic signal, compare the first transient energy response and the second transient energy response, and determine a frequency band division result of the floating device according to a comparison result. Based on the method of the present application, the first transient energy response and the second transient energy response corresponding to each characteristic frequency can be quickly obtained, and the first transient energy response and the second transient energy response corresponding to each characteristic frequency are compared. Based on the comparison result, the frequency band division result of the floating device can be accurately obtained, the frequency band of the floating device can be quickly and accurately divided, and the design speed of the floating device can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 An application environment diagram of the frequency band division method of the floating device provided for the present embodiment is shown in the figure;

[0042] Figure 2 A flowchart of the first frequency band division method of the floating device provided for the present embodiment is shown in the figure;

[0043] Figure 3 A flowchart of the first method of determining the frequency band division result of the floating device provided for the present embodiment is shown in the figure;

[0044] Figure 4 A flowchart of determining the frequency band corresponding to the characteristic frequency of each characteristic signal provided for the present embodiment is shown in the figure;

[0045] Figure 5 A first transient energy response and a second transient energy response of a 1000Hz characteristic frequency provided for the present embodiment are shown in the figure;

[0046] Figure 6 A first transient energy response and a second transient energy response of a 500Hz characteristic frequency provided for the present embodiment are shown in the figure;

[0047] Figure 7 The first transient energy response and the second transient energy response schematic diagram of the 1900Hz characteristic frequency provided for the embodiment are shown in the following figure;

[0048] Figure 8 The first transient energy response and the second transient energy response schematic diagram of the 1660Hz characteristic frequency provided for the embodiment are shown in the following figure;

[0049] Figure 9 The second flowchart example diagram of determining the frequency band division result of the floating device provided for the embodiment is shown in the following figure;

[0050] Figure 10 The second flowchart example diagram of the frequency band division method of the floating device provided for the embodiment is shown in the following figure;

[0051] Figure 11 The structure block diagram of the frequency band division device of the floating device provided for the embodiment is shown in the following figure;

[0052] Figure 12 The internal structure diagram of the computer device provided for the embodiment is shown in the following figure. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0054] The frequency band division method of the floating device provided by the embodiments of the present application can be applied in the application environment as shown in the following figure. Figure 1 The floating device 102 communicates with the server 104 through the network. The data storage system can store the data required to be processed by the server 104. The data storage system can be integrated on the server 104, or placed on the cloud or other network servers. Specifically, the floating device 102 is connected with the server 104 through the network, the server 104 obtains the device speed response of the floating device 102 in a preset time period, and decomposes the device speed response to obtain the characteristic speed response and the characteristic frequency of at least one characteristic signal; according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal, the first transient energy response and the second transient energy response of each characteristic signal in the preset time period are determined; after the server 104 determines the first transient energy response and the second transient energy response, the comparison result is obtained by comparing the first transient energy response and the second transient energy response, and the frequency band division result of the floating device is determined based on the comparison result. The server 104 can be realized by an independent server or a server cluster composed of multiple servers.

[0055] In one of the embodiments, a frequency band division method of a floating device is provided, which is applied to Figure 1 a server in Figure 2 as shown in the following steps:

[0056] S201, decompose the device speed response of the floating device in a preset time period to obtain the characteristic speed response and characteristic frequency of at least one characteristic signal.

[0057] Wherein, the floating device refers to a device floatingly arranged in a liquid medium (such as seawater, freshwater, etc.), which can be a certain equipment, a certain component or a structure of a certain component (such as a structure on a pipeline) in a floating platform at sea, etc.; the preset time period refers to a time period or a certain time period in the time period from the motion state of the floating device with a certain initial speed to the stable state; the device speed response refers to the average value of the speed response of each component (such as bolts, housings and internal components, etc.) of the floating device; the characteristic speed response refers to the speed response of each characteristic information obtained after the decomposition of the device speed response; the characteristic frequency is obtained by form transformation of the characteristic signal obtained by decomposition.

[0058] Optionally, in the embodiment, the device speed response of the floating device in the preset time period can be decomposed based on the modal variation method to obtain at least one characteristic signal and the characteristic speed response corresponding to each characteristic signal, and then the fast Fourier transform is performed on each characteristic signal to obtain the characteristic frequency of each characteristic signal.

[0059] Optionally, in the embodiment, the decomposition of the device speed response of the floating device in the preset time period is generally preferred to be about 30 characteristic signals.

[0060] Optionally, in the embodiment, the device speed response of the floating device in the preset time period can also be obtained, and one optional implementation manner of obtaining the device speed response is that: a certain initial speed is applied to the floating device to make it in a free vibration state, the transient dynamics analysis of the floating device with the certain initial speed is performed based on the finite element method to obtain the dynamics response of the floating device, and the device speed response of the floating device in the preset time period is obtained in combination with the preset time period.

[0061] S202, determine the first transient energy response and the second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal.

[0062] wherein the device mass refers to the mass of the floating device; the first transient energy response refers to a transient energy response corresponding to the characteristic velocity response of each characteristic signal, which can be calculated based on the device mass of the floating device and the characteristic velocity response of each characteristic signal; and the second transient energy response refers to a transient energy response determined according to the device mass of the floating device, the characteristic velocity response and the characteristic frequency of each characteristic signal.

[0063] Optionally, in the embodiment, the first transient energy response of each characteristic signal in the preset time period can be determined according to the device mass of the floating device and the characteristic velocity response of each characteristic signal. Optionally, in the embodiment, the first transient energy response can be calculated by wherein m is the mass of the floating device, v i is the characteristic velocity response of the characteristic signal.

[0064] According to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency in the preset time period, the second transient energy response of each characteristic frequency in the preset time period is determined. Optionally, in the embodiment, the second transient energy response of each characteristic frequency in the preset time period can be determined according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency in the preset time period by using a transient statistical energy equation.

[0065] S203, comparing the first transient energy response and the second transient energy response, and determining the frequency band division result of the floating device according to the comparison result.

[0066] wherein the frequency band division result refers to a frequency band to which each characteristic frequency belongs, which is determined according to the comparison result of the first transient energy response and the second transient energy response.

[0067] An optional implementation of the embodiment is that the first transient energy response and the second transient energy response are input into a trained neural network model, the first transient energy response and the second transient energy response are compared by the neural network model, for example, the similarity is compared, and the frequency band division result of the floating device is determined based on the similarity comparison result. For example, if the similarity is higher, the corresponding characteristic frequency is a high frequency band; if the similarity is lower, the corresponding characteristic frequency is a low frequency band.

[0068] In another alternative implementation of the embodiment, the first transient energy response and the second transient energy response are input to a plotting device to form a first curve corresponding to the first transient energy response and a second curve corresponding to the second transient energy response, the cross-over degree of the first curve and the second curve is compared to obtain a comparison result, and the frequency band division result of the floating device is determined according to the comparison result. For example, if the cross-over degree is higher, the corresponding characteristic frequency is a high frequency band; if the cross-over degree is lower, the corresponding characteristic frequency is a low frequency band. Optionally, the first curve and the second curve in the embodiment are plotted in a plane coordinate system formed by taking the preset time period as the X-axis and the transient energy response as the Y-axis.

[0069] In the embodiment, the device velocity response of the floating device in the preset time period is obtained, and the device velocity response is decomposed to obtain the characteristic velocity response and the characteristic frequency of at least one characteristic signal; the first transient energy response and the second transient energy response of each characteristic signal in the preset time period are determined according to the device mass of the floating device and the characteristic velocity response and the characteristic frequency of each characteristic signal; and the frequency band division result of the floating device is determined according to the comparison result. Based on the embodiment, the first transient energy response and the second transient energy response corresponding to each characteristic frequency can be quickly obtained, and the first transient energy response and the second transient energy response corresponding to each characteristic frequency are compared. Based on the comparison result, the frequency band division result of the floating device can be accurately obtained, the frequency band of the floating device can be quickly and accurately divided, and the design speed of the floating device can be greatly improved.

[0070] Based on the above embodiment, in order to accurately obtain the second transient energy response, the second transient energy response of each characteristic frequency in the preset time period is determined according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency in the preset time period. One alternative implementation includes:

[0071] The second transient energy response of each characteristic frequency in the preset time period is determined according to the characteristic frequency of each characteristic signal and the initial response value of each characteristic frequency in the preset time period by using a transient statistical energy equation, wherein the initial response value is the response value corresponding to the start time of the preset time period of the first transient energy response.

[0072] The transient statistical energy equation refers to an equation used to calculate transient energy.

[0073] Specifically, in the embodiment, when the second transient energy response of a certain characteristic frequency in the preset time period is determined, the characteristic frequency and the initial response value of the characteristic frequency in the preset time period are substituted into the transient statistical energy equation, and the second transient energy response is calculated by the transient statistical energy equation. The transient statistical energy equation can be represented by the following formula (1).

[0074] E=E0 exp(-ηωt) (1)

[0075] In formula (1), E is the second transient energy response, E0 is the response value of the first transient energy response at the beginning of the preset time period, η is the internal loss factor, ω is the characteristic frequency, and t is the time.

[0076] The embodiment can accurately determine the second transient energy response of each characteristic frequency in the preset time period based on the transient statistical energy equation, in combination with the characteristic frequency of each characteristic signal and the initial response value of each characteristic frequency in the preset time period.

[0077] In one of the embodiments, in order to accurately determine the frequency band division result of the floating device, as shown in FIG. 2, an optional implementation of S203 includes the following steps. Figure 3

[0078] S301, comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0079] Optionally, in the embodiment, the frequency band corresponding to the characteristic frequency of each characteristic signal can be determined by comparing the similarity or the cross-overlapping degree of the first transient energy response and the second transient energy response corresponding to each characteristic signal. For example, if the similarity is higher or the cross-overlapping degree is higher, it indicates that the characteristic frequency of the characteristic signal corresponds to a high frequency band; if the similarity is lower or the cross-overlapping degree is lower, it indicates that the characteristic frequency of the characteristic signal corresponds to a low frequency band.

[0080] It should be noted that the determination methods of the similarity and the cross-overlapping degree are described in the above embodiments, which will not be described herein.

[0081] S302, determining the frequency band division result of the floating device according to the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0082] ​Optionally, in the embodiment, the minimum frequency of the frequency band in the high frequency band (hereinafter referred to as the first characteristic frequency) and the maximum frequency of the frequency band in the low frequency band (hereinafter referred to as the second characteristic frequency) are determined according to the characteristic frequency corresponding to each characteristic signal. According to the first characteristic frequency and the second characteristic frequency, the frequency band division result of the floating device can be determined, that is, the characteristic frequencies higher than the first characteristic frequency are all high frequency bands of the floating device, and the characteristic frequencies lower than the second characteristic frequency are all low frequency bands of the floating device. For example, if the first characteristic frequency is 1660 Hz, which is the high frequency band of the floating device, it can be determined that the characteristic frequencies to be divided above 1660 Hz are all high frequency bands of the floating device; if the second characteristic frequency is 900 Hz, which is the low frequency band of the floating device, it can be determined that the characteristic frequencies to be divided below 900 Hz are all low frequency bands of the floating device.

[0083] On the basis of the above-mentioned embodiment, the mean value of the first characteristic frequency and the second characteristic frequency can be further calculated as a target frequency, and all frequencies higher than the target frequency are high frequency bands of the floating device, and all frequencies lower than the target frequency are low frequency bands of the floating device.

[0084] In the embodiment, the first transient energy response and the second transient energy response corresponding to each characteristic signal are compared, the frequency band corresponding to the characteristic frequency of each characteristic signal is determined, and then the frequency band division result of the floating device is determined according to the frequency band corresponding to the characteristic frequency of each characteristic signal. The frequency band division result of the floating device can be quickly determined based on the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0085] It should be noted that in the case where the number of characteristic signals is one, the frequency band corresponding to the characteristic frequency of the characteristic signal is determined by comparing the first transient energy response and the second transient energy response corresponding to the characteristic signal. If the characteristic frequency of the characteristic signal is a high frequency band of the floating device, it can be determined that the characteristic frequencies to be divided above the characteristic frequency of the characteristic signal are all high frequency bands of the floating device; if the characteristic frequency of the characteristic signal is a low frequency band of the floating device, it can be determined that the characteristic frequencies to be divided below the characteristic frequency of the characteristic signal are all low frequency bands of the floating device.

[0086] In one of the embodiments, in order to more accurately determine the frequency band corresponding to the characteristic frequency of each characteristic signal, as shown in FIG. 8, S301, an optional implementation manner comprises the following steps. Figure 4

[0087] S401, for each characteristic signal, comparing the energy difference and the change trend between the first transient energy response and the second transient energy response corresponding to the characteristic signal.

[0088] ​Optionally, in the embodiment, firstly, the variation trend of the first transient energy response and the second transient energy response corresponding to each characteristic signal in a preset period is compared, if the variation trend is same, then the energy difference between the first transient energy response and the second transient energy response is further compared to obtain an energy difference comparison result.

[0089] S402, in the case of same variation trend, the characteristic frequency corresponding to the characteristic signal is determined according to the energy difference corresponding to the characteristic signal.

[0090] Optionally, in the embodiment, in the case of same variation trend of the first transient energy response and the second transient energy response corresponding to a certain characteristic signal, if the energy difference between the first transient energy response and the second transient energy response is large, then the characteristic frequency corresponding to the characteristic signal is determined as a low frequency band of the floating device. For example, as shown in Figure 5 (a first transient energy response and a second transient energy response of 1000Hz characteristic frequency), Figure 6 the first transient energy response curve (the curve marked as FEM in the figure, i.e. the wavy curve in the figure) and the second transient energy curve (the curve marked as TSEA in the figure, i.e. the arc-shaped curve in the figure) in (a first transient energy response and a second transient energy response of 500Hz characteristic frequency), the variation trend of the two is same, but the energy difference is large, therefore, the 1000Hz characteristic frequency and the 500Hz characteristic frequency both belong to the low frequency band of the floating device.

[0091] If the variation trend of the first transient energy response and the second transient energy response corresponding to a certain characteristic signal is same, and the energy difference between the first transient energy response and the second transient energy response is small, then the characteristic frequency corresponding to the characteristic signal is determined as a high frequency band of the floating device. For example, as shown in Figure 7 (a first transient energy response and a second transient energy response of 1900Hz characteristic frequency), Figure 8 (a first transient energy response and a second transient energy response of 1660Hz characteristic frequency), the variation trend of the first transient energy response curve (the curve marked as FEM in the figure, i.e. the wavy curve in the figure) and the second transient energy curve (the curve marked as TSEA in the figure, i.e. the arc-shaped curve in the figure) is same, and the energy difference is small, therefore, it can be determined that the 1900Hz characteristic frequency and the 1660Hz characteristic frequency both belong to the high frequency band of the floating device.

[0092] It should be noted that, if the variation trend of the first transient energy response and the second transient energy response corresponding to a certain characteristic signal in the embodiment is different, then the characteristic frequency corresponding to the characteristic signal is determined as a low frequency band of the floating device.

[0093] In order to quickly determine the characteristic frequency corresponding frequency band of each characteristic signal, the preferred embodiment of the present embodiment is: according to the characteristic frequency, the characteristic signals are sorted, and the characteristic frequency corresponding frequency band of the characteristic signal in the middle position of the sorting is determined preferentially. If the characteristic frequency corresponding frequency band of the characteristic signal is a high frequency band, the characteristic frequency corresponding frequency band of the characteristic signal greater than the characteristic frequency is determined to be a high frequency band, and only the characteristic signal less than the characteristic frequency needs to be executed S401-S402. If the characteristic frequency corresponding frequency band of the characteristic signal is a low frequency band, the characteristic frequency corresponding frequency band of the characteristic signal less than the characteristic frequency is determined to be a low frequency band, and only the characteristic signal greater than the characteristic frequency needs to be executed S401-S402. The determination speed of the characteristic frequency corresponding frequency band of each characteristic signal can be greatly improved.

[0094] When comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal, the comparison is made from the change trend and the energy difference. Based on the comparison result, the frequency band corresponding to each characteristic frequency can be quickly determined.

[0095] In one of the embodiments, in order to more clearly determine the frequency band division result of the floating device, as shown in Figure 9 An optional embodiment of S402 is:

[0096] S901, if the number of characteristic signals is more than two, the characteristic frequencies of the characteristic signals are sorted according to the size of the characteristic frequencies.

[0097] Optionally, in the present embodiment, according to the size of the characteristic frequencies, the frequencies of the characteristic signals are sorted in descending order. For example, Figure 5 1000Hz in (1000Hz characteristic frequency first transient energy response and second transient energy response schematic diagram), Figure 6 500Hz in (500Hz characteristic frequency first transient energy response and second transient energy response schematic diagram), Figure 7 1900Hz in (1900Hz characteristic frequency first transient energy response and second transient energy response schematic diagram), and Figure 8 1660Hz in (1660Hz characteristic frequency first transient energy response and second transient energy response schematic diagram) are sorted in descending order, and the sorting result is 1900Hz, 1660Hz, 1000Hz, 500Hz.

[0098] S902, according to the frequency band corresponding to each characteristic frequency after sorting, the target frequency is determined from each characteristic frequency.

[0099] The target frequency refers to the characteristic frequency corresponding to the frequency band mutation.

[0100] Optionally, in the embodiment, the feature frequency at which the frequency band changes is determined as the target frequency according to the frequency band corresponding to each feature frequency after sorting, so as to determine the target frequency from each feature frequency. Taking the feature frequencies of 1900 Hz, 1660 Hz, 1000 Hz and 500 Hz as examples, the frequency bands corresponding to 1900 Hz, 1660 Hz, 1000 Hz and 500 Hz are high frequency band, high frequency band, low frequency band and low frequency band respectively, and thus the feature frequency at which the frequency band changes is 1000 Hz, and 1000 Hz is determined as the target frequency.

[0101] In the embodiment, only four feature frequencies of 1900 Hz, 1660 Hz, 1000 Hz and 500 Hz are taken as examples to explain the determination process of the target frequency. In the actual determination process of the target frequency, the higher the number of feature frequencies selected, the more accurate the target frequency determined.

[0102] S903, determining the frequency band division result of the floating device according to the target frequency.

[0103] Optionally, in the embodiment, the high frequency band of the floating device can be determined according to the target frequency, that is, the feature frequency greater than the target frequency is the high frequency band of the floating device, and the low frequency band of the floating device can be determined according to the target frequency, that is, the feature frequency less than or equal to the target frequency is the low frequency band of the floating device.

[0104] In the embodiment, the feature frequencies of each feature signal are sorted, and the target frequency is determined from each feature frequency according to the frequency band corresponding to each feature frequency after sorting, so as to clearly divide the high and low frequency bands of the floating device based on the target frequency channel, and determine the frequency band division result of the floating device.

[0105] In one of the embodiments, as shown in Figure 10 , an optional implementation of a frequency band division method of a floating device is provided.

[0106] S1001, decomposing the device speed response of the floating device in a preset time period to obtain the feature speed response and the feature frequency of at least one feature signal.

[0107] S1002, determining the first transient energy response of each feature signal in the preset time period according to the device mass of the floating device and the feature speed response of each feature signal.

[0108] S1003, determining the second transient energy response of each feature frequency in the preset time period by a transient statistical energy equation according to the feature frequency of each feature signal and the initial response value of each feature frequency in the preset time period.

[0109] S1004, compare the energy difference and the change trend between the first transient energy response and the second transient energy response corresponding to each characteristic signal.

[0110] S1005, determine the characteristic frequency corresponding frequency band of each characteristic signal according to the energy difference and the change trend corresponding to each characteristic signal.

[0111] S1006, if the number of characteristic signals is more than two, sort the characteristic frequencies of the characteristic signals according to the sizes of the characteristic frequencies.

[0112] S1007, determine the target frequency from the characteristic frequencies according to the characteristic frequencies corresponding frequency bands after sorting.

[0113] S1008, determine the frequency band division result of the floating device according to the target frequency.

[0114] It should be understood that, although each step in the flowchart involved in each embodiment as described above is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each embodiment as described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0115] Based on the same inventive concept, the embodiments of the present application also provide a frequency band division device of a floating device for implementing the frequency band division method of the floating device involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more frequency band division device embodiments of the floating device provided below can refer to the limitations of the frequency band division method of the floating device in the above, which will not be repeated here.

[0116] In one embodiment, as shown in Figure 11 a frequency band division device 1 of a floating device is provided, comprising: an acquisition module 10, a determination module 20, and a comparison module 30.

[0117] The acquisition module 10 is configured to decompose the device speed response of the floating device within a preset time period to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal.

[0118] The determination module 20 is used to determine the first transient energy response and the second transient energy response of each characteristic signal within a preset time period based on the device mass of the floating device and the characteristic velocity response and characteristic frequency of each characteristic signal;

[0119] The comparison module 30 is used to compare the first transient energy response and the second transient energy response, and to determine the frequency band division result of the floating device based on the comparison result.

[0120] In one embodiment, the upper Figure 11 The determining module 20 further includes:

[0121] The first determining unit is used to determine the first transient energy response of each characteristic signal within a preset time period based on the device mass of the floating device and the characteristic velocity response of each characteristic signal;

[0122] The second determining unit is used to determine the second transient energy response of each characteristic frequency within a preset time period based on the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within a preset time period.

[0123] In one embodiment, the second determining unit is specifically used to: determine the second transient energy response of each characteristic frequency within a preset time period by using the transient statistical energy equation, based on the characteristic frequency of each characteristic signal and the initial response value of each characteristic frequency within a preset time period; wherein the initial response value is the response value of the first transient energy response at the beginning of the preset time period.

[0124] In one embodiment, the upper Figure 11 The comparison module 30 further includes:

[0125] The comparison unit is used to compare the first transient energy response and the second transient energy response corresponding to each feature signal to determine the frequency band corresponding to the feature frequency of each feature signal.

[0126] The third determining unit is used to determine the frequency band division result of the floating device based on the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0127] In one embodiment, the comparison unit is specifically used to: compare the energy difference and change trend between the first transient energy response and the second transient energy response corresponding to each feature signal; and determine the frequency band corresponding to the feature frequency of each feature signal based on the energy difference and change trend corresponding to each feature signal.

[0128] In one of the embodiments, the third determining unit is specifically configured to: if the number of characteristic signals is more than two, sort the characteristic frequencies of the characteristic signals according to the sizes of the characteristic frequencies; determine a target frequency from the characteristic frequencies according to the corresponding frequency bands of the sorted characteristic frequencies; and determine the frequency band division result of the floating device according to the target frequency.

[0129] The modules in the floating device frequency band division device can be realized by software, hardware, or a combination thereof. The modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to be called and executed by the processor.

[0130] In one embodiment, a computer device is provided, which can be a server, and the internal structure diagram thereof can be as shown in Figure 12 The computer device includes a processor, a memory, an input / output interface (I / O), and a communication interface. The processor, the memory, and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The database of the computer device is configured to store floating device frequency band division related data. The input / output interface of the computer device is configured to exchange information between the processor and external devices. The communication interface of the computer device is configured to communicate with external terminals through a network connection. The computer program is executed by the processor to implement a floating device frequency band division method.

[0131] Those skilled in the art can understand that Figure 12 The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0132] In one embodiment, a computer device is provided, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the following steps:

[0133] The device speed response of the floating device in a preset time period is decomposed to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal;

[0134] determining the first transient energy response and the second transient energy response of each characteristic signal within the preset time period according to the device mass of the floating device and the characteristic velocity response and the characteristic frequency of each characteristic signal;

[0135] comparing the first transient energy response and the second transient energy response, and determining the frequency band division result of the floating device according to the comparison result.

[0136] In one embodiment, when the processor executes the computer program, the following steps are also implemented: determining the first transient energy response and the second transient energy response of each characteristic signal within the preset time period according to the device mass of the floating device and the characteristic velocity response and the characteristic frequency of each characteristic signal, including:

[0137] determining the first transient energy response of each characteristic signal within the preset time period according to the device mass of the floating device and the characteristic velocity response of each characteristic signal;

[0138] determining the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period.

[0139] In one embodiment, when the processor executes the computer program, the following steps are also implemented: determining the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period, including:

[0140] determining the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the initial response value of each characteristic frequency within the preset time period through the transient statistical energy equation; wherein the initial response value is the response value corresponding to the start time of the preset time period of the first transient energy response.

[0141] In one embodiment, when the processor executes the computer program, the following steps are also implemented: comparing the first transient energy response and the second transient energy response, and determining the frequency band division result of the floating device according to the comparison result, including:

[0142] comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine the frequency band corresponding to the characteristic frequency of each characteristic signal;

[0143] determining the frequency band division result of the floating device according to the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0144] In one embodiment, when the processor executes the computer program, the following steps are also implemented: comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine the frequency band corresponding to the characteristic frequency of each characteristic signal, including:

[0145] comparing the energy difference and the change trend between the first transient energy response and the second transient energy response corresponding to each characteristic signal;

[0146] determining the frequency band corresponding to the characteristic frequency of each characteristic signal according to the energy difference and the change trend corresponding to each characteristic signal.

[0147] In an embodiment, the processor, when executing the computer program, also implements the following steps: determining the frequency band division result of the floating device according to the frequency band corresponding to the characteristic frequency of each characteristic signal, including:

[0148] If the number of characteristic signals is more than two, the characteristic frequencies of the characteristic signals are sorted according to the size of the characteristic frequencies;

[0149] determining the target frequency from the characteristic frequencies according to the frequency bands corresponding to the sorted characteristic frequencies;

[0150] determining the frequency band division result of the floating device according to the target frequency.

[0151] In an embodiment, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program. The computer program, when executed by a processor, implements the following steps:

[0152] decomposing the device speed response of the floating device in a preset time period to obtain the characteristic speed response and the characteristic frequency of at least one characteristic signal;

[0153] determining the first transient energy response and the second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal;

[0154] comparing the first transient energy response and the second transient energy response, and determining the frequency band division result of the floating device according to the comparison result.

[0155] In an embodiment, the computer program, when executed by the processor, also implements the following steps: determining the first transient energy response and the second transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal, including:

[0156] determining the first transient energy response of each characteristic signal in the preset time period according to the device mass of the floating device and the characteristic speed response of each characteristic signal;

[0157] determining the second transient energy response of each characteristic frequency in the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency in the preset time period.

[0158] In one embodiment, the computer program, when executed by the processor, further implements the following steps: determining a second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period, including:

[0159] determining a second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and an initial response value of each characteristic frequency within the preset time period through a transient statistical energy equation; wherein the initial response value is a response value corresponding to a starting moment of the preset time period of the first transient energy response.

[0160] In one embodiment, the computer program, when executed by the processor, further implements the following steps: comparing the first transient energy response and the second transient energy response, and determining a frequency band division result of the floating device according to a comparison result, including:

[0161] comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine a frequency band corresponding to the characteristic frequency of each characteristic signal.

[0162] determining the frequency band division result of the floating device according to the frequency band corresponding to the characteristic frequency of each characteristic signal.

[0163] In one embodiment, the computer program, when executed by the processor, further implements the following steps: comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine a frequency band corresponding to the characteristic frequency of each characteristic signal, including:

[0164] comparing an energy difference value and a change trend between the first transient energy response and the second transient energy response corresponding to each characteristic signal.

[0165] determining the frequency band corresponding to the characteristic frequency of each characteristic signal according to the energy difference value and the change trend corresponding to each characteristic signal.

[0166] In one embodiment, the computer program, when executed by the processor, further implements the following steps: determining the frequency band division result of the floating device according to the frequency band corresponding to the characteristic frequency of each characteristic signal, including:

[0167] if the number of characteristic signals is more than two, sorting the characteristic frequencies of the characteristic signals according to the sizes of the characteristic frequencies;

[0168] determining a target frequency from the characteristic frequencies according to the frequency bands corresponding to the sorted characteristic frequencies.

[0169] determining the frequency band division result of the floating device according to the target frequency.

[0170] In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the following steps:

[0171] decomposing the device speed response of the floating device within the preset time period to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal;

[0172] determining a first transient energy response and a second transient energy response of each characteristic signal within the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal;

[0173] comparing the first transient energy response and the second transient energy response, and determining a frequency band division result of the floating device according to a comparison result.

[0174] In one embodiment, the computer program, when executed by the processor, further implements the following steps: determining the first transient energy response and the second transient energy response of each characteristic signal within the preset time period according to the device mass of the floating device and the characteristic speed response and the characteristic frequency of each characteristic signal, comprising:

[0175] determining the first transient energy response of each characteristic signal within the preset time period according to the device mass of the floating device and the characteristic speed response of each characteristic signal;

[0176] determining the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period.

[0177] In one embodiment, the computer program, when executed by the processor, further implements the following steps: determining the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period, comprising:

[0178] determining the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and an initial response value of each characteristic frequency within the preset time period through a transient statistical energy equation; wherein the initial response value is a response value corresponding to a start time of the preset time period of the first transient energy response.

[0179] In one embodiment, the computer program, when executed by the processor, further implements the following steps: comparing the first transient energy response and the second transient energy response, and determining a frequency band division result of the floating device according to a comparison result, comprising:

[0180] comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine a frequency band corresponding to the characteristic frequency of each characteristic signal;

[0181] According to the frequency band corresponding to the characteristic frequency of each characteristic signal, the frequency band division result of the floating device is determined.

[0182] In one of the embodiments, the first transient energy response and the second transient energy response corresponding to each characteristic signal are compared, and the frequency band corresponding to the characteristic frequency of each characteristic signal is determined, including:

[0183] The energy difference and the change trend between the first transient energy response and the second transient energy response corresponding to each characteristic signal are compared;

[0184] According to the energy difference and the change trend corresponding to each characteristic signal, the frequency band corresponding to the characteristic frequency of each characteristic signal is determined.

[0185] In one of the embodiments, according to the frequency band corresponding to the characteristic frequency of each characteristic signal, the frequency band division result of the floating device is determined, including:

[0186] If the number of characteristic signals is more than two, the characteristic frequencies of the characteristic signals are sorted according to the sizes of the characteristic frequencies;

[0187] According to the frequency band corresponding to the sorted characteristic frequencies, a target frequency is determined from the characteristic frequencies;

[0188] According to the target frequency, the frequency band division result of the floating device is determined.

[0189] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of the methods can be included. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric memory (Ferroelectric Random Access Memory, FRAM), phase change memory (Phase Change Memory, PCM), graphene memory, etc. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0190] Any combination of the technical features of the above embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0191] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A method of band division of a floating device, characterized by, The method comprises: decomposing a device speed response of the floating device within a preset time period to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal; determining a first transient energy response of each characteristic signal within the preset time period according to a device mass of the floating device and the characteristic speed response of each characteristic signal, and determining a second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period; comparing the first transient energy response and the second transient energy response, and determining a frequency band division result of the floating device according to a comparison result.

2. The method of claim 1, wherein, The determining of the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period comprises: determining the second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and an initial response value of each characteristic frequency within the preset time period through a transient statistical energy equation, wherein the initial response value is a response value corresponding to a start time of the preset time period in the first transient energy response.

3. The method of claim 1, wherein, The comparing of the first transient energy response and the second transient energy response and the determining of the frequency band division result of the floating device according to a comparison result comprises: comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine a frequency band corresponding to the characteristic frequency of each characteristic signal; determining the frequency band division result of the floating device according to the frequency band corresponding to the characteristic frequency of each characteristic signal.

4. The method of claim 3, wherein, The comparing of the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine the frequency band corresponding to the characteristic frequency of each characteristic signal comprises: for each characteristic signal, comparing an energy difference and a change trend between the first transient energy response and the second transient energy response corresponding to the characteristic signal; in a case where the change trend is the same, determining the frequency band corresponding to the characteristic frequency of the characteristic signal according to the energy difference corresponding to the characteristic signal.

5. The method of claim 3, wherein, The determining of the frequency band division result of the floating device according to the frequency band corresponding to the characteristic frequency of each characteristic signal comprises: if the number of the characteristic signals is more than two, sorting the characteristic frequencies of the characteristic signals according to the sizes of the characteristic frequencies; determining a target frequency from the characteristic frequencies according to the frequency bands corresponding to the sorted characteristic frequencies; determining the frequency band division result of the floating device according to the target frequency.

6. The method of claim 3, wherein, The comparing of the first transient energy response and the second transient energy response corresponding to each characteristic signal to determine the frequency band corresponding to the characteristic frequency of each characteristic signal comprises: comparing the first transient energy response and the second transient energy response corresponding to each characteristic signal, and determining the frequency band corresponding to the characteristic frequency of each characteristic signal according to a similarity of the first transient energy response and the second transient energy response corresponding to each characteristic signal.

7. A frequency band division device of a floating device, characterized by comprising: The method comprises: The acquisition module is configured to decompose a device speed response of the floating device within a preset time period to obtain a characteristic speed response and a characteristic frequency of at least one characteristic signal; The determination module includes a first determination unit and a second determination unit. The first determination unit is configured to determine a first transient energy response of each characteristic signal within the preset time period according to a device mass of the floating device and the characteristic speed response of each characteristic signal. The second determination unit is configured to determine a second transient energy response of each characteristic frequency within the preset time period according to the characteristic frequency of each characteristic signal and the first transient energy response of each characteristic frequency within the preset time period. The comparison module is configured to compare the first transient energy response and the second transient energy response, and determine a frequency band division result of the floating device according to a comparison result.

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