Intelligent liquid level adjusting system for port seawater pump station and control method of intelligent liquid level adjusting system

Abstract

The invention relates to the technical field of control and adjustment, and particularly discloses an intelligent liquid level adjusting system for a port seawater pump station and a control method thereof.According to the system, a sea surface fluctuation degree judgment module, an anti-interference operation arrangement module and an intelligent liquid level adjusting module are arranged, and port sea surface stability change data are collected in real time; the fluctuation degree value is judged, a specific numerical value section is determined according to the fluctuation degree value, anti-interference operation is conducted on seawater pump station monitoring equipment in real time, and when the anti-interference operation is executed, intelligent liquid level adjustment is conducted on all seawater sub-pumps of the seawater pump station. The process can optimize the configuration of monitoring equipment, improve the monitoring accuracy, ensure the stable operation of the equipment, prolong the service life, ensure the stable supply of seawater, and meet the requirements of port operation.

Description

Technical Field

[0001] The present invention relates to the technical field of control and regulation, and specifically to an intelligent liquid level regulation system for a port seawater pumping station and a control method thereof. Background Art

[0002] The production operations of ports rely on a stable supply of seawater, such as ship cooling, port facility cleaning, seawater desalination, etc. Different operation scenarios have different requirements for the demand and supply pressure of seawater, and it is necessary to precisely regulate the liquid level of the seawater pumping station to ensure the stability and reliability of seawater supply and meet the diverse port operation needs. Equipment such as seawater pumps is prone to failures or even damage when operating at too high or too low liquid levels. The intelligent liquid level regulation system can improve the overall operation efficiency and service life of the equipment by monitoring and regulating the liquid level in real time.

[0003] For example, the invention patent with the publication number CN110874103B discloses a control method, a control system, and a control device for a seawater desalination test platform. The control method includes: obtaining the hydraulic oil pressure information of the first hydraulic pump in the fan direct-drive hydraulic pump simulation system; obtaining the operation information, determining the input power of the first hydraulic pump, and determining the power difference between the input power and the corresponding fan output power in the simulated fan characteristics; according to the hydraulic oil pressure information and the power difference, controlling the first hydraulic pump to adjust the output flow of the hydraulic oil so that the input power of the first hydraulic pump is consistent with the output power in the fan characteristics, thereby enabling the seawater desalination test platform to simulate and output the output power corresponding to the working conditions of the fan according to different working conditions in the fan characteristics to drive the first hydraulic pump to output hydraulic oil.

[0004] Combined with the above technical solutions, it is found that the existing seawater pump control and regulation solutions only perform control settings based on a single seawater pump parameter. Due to the complex port working conditions, the seawater pump control and regulation solutions are easily interfered by multiple external variables. If the control algorithm is single, it is easy to lead to insufficient adaptability of the regulation solution. At the same time, when multiple pumps are operating in parallel, a single seawater pump parameter cannot achieve liquid level balance, and it is easy to cause great instability in the seawater pump control and regulation. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an intelligent liquid level regulation system for a port seawater pumping station and a control method thereof, which can effectively solve the problems involved in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: The first aspect of the present invention provides an intelligent liquid level regulation system for a port seawater pumping station, including: a sea surface fluctuation degree determination module, configured to collect in real time the data of the change in the stability of the sea surface in the port and determine the fluctuation degree value of the sea surface in the port; an anti-interference operation layout module, configured to determine a specific fluctuation degree numerical segment according to the fluctuation degree value of the sea surface in the port and perform anti-interference operations on the monitoring equipment of the port seawater pumping station in real time; an intelligent liquid level regulation module, configured to perform intelligent liquid level regulation on each seawater sub-pump of the port seawater pumping station when performing anti-interference operations on the monitoring equipment of the port seawater pumping station in real time. Each seawater sub-pump of the port seawater pumping station includes each seawater constant speed pump and each seawater variable frequency pump.

[0007] The second aspect of the present invention provides a control method for the intelligent liquid level of a port seawater pumping station, including: collecting in real time the data of the change in the stability of the sea surface in the port and determining the fluctuation degree value of the sea surface in the port; determining a specific fluctuation degree numerical segment according to the fluctuation degree value of the sea surface in the port and performing anti-interference operations on the monitoring equipment of the port seawater pumping station in real time; performing intelligent liquid level regulation on each seawater sub-pump of the port seawater pumping station when performing anti-interference operations on the monitoring equipment of the port seawater pumping station in real time. Each seawater sub-pump of the port seawater pumping station includes each seawater constant speed pump and each seawater variable frequency pump.

[0008] Compared with the prior art, the present invention has at least the following advantages or beneficial effects: (1) By providing an intelligent liquid level regulation system and its control method for a port seawater pumping station, the present invention collects in real time the data of the change in the stability of the sea surface in the port, determines the fluctuation degree value, determines a specific numerical segment according to the fluctuation degree value, performs anti-interference operations on the monitoring equipment of the seawater pumping station in real time, and performs intelligent liquid level regulation on each seawater sub-pump of the seawater pumping station when performing anti-interference operations. This process can optimize the configuration of the monitoring equipment, improve the monitoring accuracy, ensure the stable operation of the equipment, extend the service life, and at the same time ensure the stable supply of seawater to meet the needs of port operations. (2) By collecting the data of the change in the stability of the sea surface in the port and determining the fluctuation degree value of the sea surface in the port, the present invention can understand the sea surface fluctuation situation and can optimize the configuration of the monitoring equipment accordingly, such as adjusting the sampling period, filtering intensity, and transmission power, etc., so as to improve the performance and reliability of the monitoring equipment under different sea conditions and ensure the accuracy and effectiveness of the monitoring data. Reasonably adjust the operating parameters of the monitoring equipment and the seawater pumping station according to the sea surface fluctuation degree, avoid the equipment from operating excessively or bearing too much stress under harsh sea conditions, help to extend the service life of the equipment, and reduce the maintenance and replacement costs of the equipment. (3) Through the intelligent liquid level regulation of the port seawater pumping station, the present invention ensures that the seawater pumping station can adjust the liquid level in real time according to the actual water demand of the port and the sea surface fluctuation conditions, providing a stable and reliable seawater supply to meet the seawater requirements of different operation scenarios such as ship cooling, port facility cleaning, and seawater desalination, and ensuring the continuity and stability of port production operations; the intelligent liquid level regulation system can optimize the operating frequency and load distribution of the seawater pumps according to the liquid level conditions and equipment operating status, enabling each seawater sub-pump to operate in the high-efficiency range, being able to adapt to the complex working conditions and multi-variable interferences of the port, improving the overall operating efficiency of the equipment, and reducing energy consumption. Brief Description of the Drawings

[0009] The present invention will be further described with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the following drawings.

[0010] Figure 1 It is a schematic diagram of the connection of the system modules of the present invention; Figure 2 It is a schematic diagram of the flow of the method steps of the present invention; Figure 3 It is a layout flowchart of anti-interference operations; Figure 4 It is a flowchart of the load configuration for liquid level regulation. Detailed Embodiments

[0011] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0012] Referring to Figure 1 As shown, the first aspect of the present invention provides an intelligent liquid level regulation system for a port seawater pumping station, including: a sea surface fluctuation degree determination module, an anti-interference operation layout module, an intelligent liquid level regulation module, and a seawater pump management library. Among them, the seawater pump management library is used to store the preset values of various factors.

[0013] The sea surface fluctuation degree determination module is connected to the anti-interference operation layout module, the anti-interference operation layout module is connected to the intelligent liquid level regulation module, and the sea surface fluctuation degree determination module, the anti-interference operation layout module, and the intelligent liquid level regulation module are all connected to the seawater pump management library.

[0014] The sea surface fluctuation degree determination module is used to collect the sea surface stability change data of the port in real time and determine the sea surface fluctuation degree value of the port.

[0015] The anti-interference operation layout module is used to determine the specific fluctuation degree numerical segment according to the fluctuation degree value of the port sea surface, and perform real-time anti-interference operations on the monitoring equipment of the port seawater pumping station.

[0016] Among them, the process of performing real-time anti-interference operations on the monitoring equipment is as follows Figure 3 shown Figure 3 is the anti-interference operation layout flow chart, which real-time determines the fluctuation degree value of the port sea surface; compares this value with three predefined fluctuation numerical segments, and when it belongs to the second or third sea surface fluctuation numerical segment, performs anti-interference operations on the monitoring equipment, including adjusting the sampling period, filtering intensity, and transmission power, etc.; at the same time, enables the echo feature recognition technology to filter out interference signals, and obtains the transmission power enhancement amount according to the proportion mapping of the fluctuation degree value, and adjusts the initial transmission power; in addition, also adjusts the anti-interference operations of the monitoring equipment in real time according to the fluctuation degree value, such as configuring the adaptation sampling period, correcting the filtering intensity and transmission power, etc., to optimize the performance of the monitoring equipment and improve the accuracy and reliability of liquid level monitoring.

[0017] The intelligent liquid level adjustment module is used to perform intelligent liquid level adjustment on each seawater sub-pump of the port seawater pumping station when performing real-time anti-interference operations on the monitoring equipment of the port seawater pumping station.

[0018] Among them, the process of performing intelligent liquid level adjustment on each seawater sub-pump is as follows Figure 4 shown Figure 4 is the liquid level adjustment load configuration flow chart. First, obtain the difference between the real-time cumulative operation duration of each seawater variable-frequency pump and the preset optimal operation duration to get the remaining effective operation duration, and preferentially start the seawater variable-frequency pump with the largest remaining effective operation duration as the compensation pump; then calculate the standard deviation of the water intake flow of each seawater constant-speed pump within the fluctuation evaluation period, combine it with the sea surface fluctuation degree value to obtain the flow fluctuation degree value, and execute corresponding strategies according to the flow fluctuation interval it belongs to. If it belongs to the second flow fluctuation interval, adjust the load rate according to the liquid level value deviation and its continuous duration of the seawater constant-speed pump or turn off the pump and start the compensation pump; if it belongs to the third flow fluctuation interval, reduce the liquid level change rate by adjusting the speed of the standby pump and the load rate of the compensation pump to maintain system stability.

[0019] Each seawater sub-pump of the port seawater pumping station includes each seawater constant-speed pump and each seawater variable-frequency pump.

[0020] Specifically, the specific analysis process of performing real-time anti-interference operations on the monitoring equipment of the port seawater pumping station is as follows: The sea surface stability change data of the port, including the wave peak-to-valley ratio of the port sea surface, the wave energy flux of the port sea surface, the combined standard deviation of the wave acceleration of the port sea surface, and the wave surface kurtosis of the port sea surface, where the sea surface stability change data can be obtained by extracting from the monitoring records of the port sea surface.

[0021] Determine the fluctuation degree value of the port sea surface. Specifically, normalize the wave peak-to-valley ratio of the port sea surface, the wave energy flux of the port sea surface, the combined standard deviation of the wave acceleration of the port sea surface, and the wave surface kurtosis of the port sea surface respectively to obtain the normalization results, and then perform weighted aggregation in sequence to obtain the fluctuation degree value of the port sea surface; The specific analysis method is as follows:

[0022] In the formula, is the fluctuation degree value of the port sea surface, is the normalized value of the breaking wave peak-to-valley ratio of the port sea surface, is the normalized value of the wave energy flux of the port sea surface, is the normalized value of the combined standard deviation of the wave acceleration of the port sea surface, is the normalized value of the wave surface kurtosis of the port sea surface, is the influence element corresponding to the predefined wave peak-to-valley ratio in the seawater pump management library, is the influence element corresponding to the predefined wave energy flux in the seawater pump management library, is the influence element corresponding to the predefined combined standard deviation of the wave acceleration in the seawater pump management library, is the influence element corresponding to the predefined wave surface kurtosis in the seawater pump management library.

[0023] It should be explained that the above breaking wave peak-to-valley ratio refers to the ratio of the wave peak height to the wave valley depth of the port sea surface waves; the wave energy flux refers to the wave energy passing through a unit wave crest width per unit time of the port sea surface; the combined standard deviation of the wave acceleration refers to the standard deviation of the combined value of the water particle acceleration of the port sea surface waves in three-dimensional space (vertical, horizontal, and longitudinal); the wave surface kurtosis refers to the ratio of the fourth-order central moment of the wave surface height time series of the port sea surface to the square of the variance.

[0024] Among them, the influencing elements corresponding to the wave crest-trough ratio, the influencing elements corresponding to the wave energy flux, the influencing elements corresponding to the combined standard deviation of wave acceleration, and the influencing elements corresponding to the wave surface kurtosis are all extracted from the seawater pump management library. The mapping relationship therein can be one-to-one or many-to-one. For example, the wave crest-trough ratio, the wave energy flux, the combined standard deviation of wave acceleration, and the wave surface kurtosis respectively form a mapping set with the influencing elements corresponding to the wave crest-trough ratio preset in the seawater pump management library, the influencing elements corresponding to the wave energy flux, the influencing elements corresponding to the combined standard deviation of wave acceleration, and the influencing elements corresponding to the wave surface kurtosis. Substituting the real-time wave crest-trough ratio, wave energy flux, combined standard deviation of wave acceleration, and wave surface kurtosis into the mapping set, the influencing elements corresponding to the wave crest-trough ratio, the influencing elements corresponding to the wave energy flux, the influencing elements corresponding to the combined standard deviation of wave acceleration, and the influencing elements corresponding to the wave surface kurtosis are obtained.

[0025] In this embodiment, through the multivariate analysis of the wave crest-trough ratio, wave energy flux, combined standard deviation of wave acceleration, and wave surface kurtosis, specifically, the correlation between these parameters is considered. Generally speaking, the larger the wave crest-trough ratio, the higher and sharper the wave crest relative to the wave trough, the more concentrated the wave energy, and the relatively larger the wave height. When the wave period and propagation direction are certain, the wave energy flux will also increase accordingly. Similarly, the acceleration change of water particles during wave breaking is more intense, and the combined standard deviation of wave acceleration is also larger, thereby greatly increasing the fluctuation degree of the port sea surface; the larger the wave energy flux, the more obvious the change in the sharpness or flatness of the wave shape, and the absolute value of the wave surface kurtosis will also increase accordingly, indicating that the nonlinear characteristics of the wave are more prominent, and the fluctuation degree of the port sea surface will also be larger.

[0026] Compare the fluctuation degree value of the port sea surface with each predefined numerical segment of the fluctuation degree to determine the specific numerical segment of the fluctuation degree value of the port sea surface: Each numerical segment of the fluctuation degree includes a first sea surface fluctuation numerical segment, a second sea surface fluctuation numerical segment, and a third sea surface fluctuation numerical segment.

[0027] The first, second, and third numerical segments represent different sea condition severity levels, generally sorted from small to large according to the fluctuation value: The first sea surface fluctuation numerical segment: represents a low fluctuation situation (such as calm or light sea conditions). This usually corresponds to a relatively small wave height (for example, 0 - 0.5 meters), suitable for safe operations (such as ships entering and leaving the port, loading and unloading goods). Situation description: The sea surface is stable, the risk is low, suitable for most port activities.

[0028] Second sea surface fluctuation numerical segment: Represents medium fluctuation conditions (such as moderate or light sea states). This corresponds to medium wave heights (e.g., 0.5 - 1.5 meters), and cautious operations are required (such as restricting certain types of vessels). Situation description: Visible waves on the sea surface may affect operation efficiency but generally do not pose a serious threat.

[0029] Third sea surface fluctuation numerical segment: Represents high fluctuation conditions (such as large waves or rough sea states). This corresponds to larger wave heights (e.g., above 1.5 meters), which may trigger safety risks (such as halting voyages or taking emergency evasive actions). Situation description: The sea surface waves are significant, port operations may be suspended, and protective measures need to be taken.

[0030] If the sea surface fluctuation degree value at the port belongs to the first sea surface fluctuation numerical segment, maintain the initial sampling period of the monitoring equipment, the initial filtering intensity value of the monitoring equipment, and the initial transmission power of the monitoring equipment.

[0031] The above-mentioned monitoring equipment includes a liquid level sensor, a flow sensor, etc. The above-mentioned sampling period is used for the monitoring equipment to collect liquid level data for each seawater sub-pump of the seawater pumping station.

[0032] If the sea surface fluctuation degree value at the port belongs to the second sea surface fluctuation numerical segment or the sea surface fluctuation degree value at the port belongs to the third sea surface fluctuation numerical segment, perform anti-interference operations on the monitoring equipment.

[0033] According to the comparison result between the sea surface fluctuation degree value at the port and each predefined fluctuation degree numerical segment, performing real-time anti-interference operations on the monitoring equipment of the seawater pumping station can ensure the stable operation of the monitoring equipment under different sea surface fluctuation conditions, and improve the accuracy and reliability of the monitoring data. Different countermeasures are taken for different fluctuation degree numerical segments. When the sea surface fluctuation is small, maintaining the initial parameters of the monitoring equipment avoids unnecessary resource waste; while when the sea surface fluctuation is large, adjusting the parameters of the monitoring equipment in a timely manner enhances the monitoring adaptability and flexibility of the monitoring equipment for seawater pumps.

[0034] Furthermore, the specific analysis process for performing anti-interference operations on the monitoring equipment is as follows: When the sea surface fluctuation degree value at the port belongs to the second sea surface fluctuation numerical segment, extract the preset adjustment factor for the period, and couple it with the initial sampling period of the monitoring equipment. Specifically, multiply the initial sampling period of the monitoring equipment by the preset adjustment factor for the period to obtain the corrected sampling period of the monitoring equipment, which is used to shorten the initial sampling period of the monitoring equipment.

[0035] The fluctuation degree value of the port sea surface is processed by taking the ratio with the corresponding span of the second sea surface fluctuation numerical segment, where the corresponding span of the second sea surface fluctuation numerical segment is the difference between the maximum value and the minimum value of the second sea surface fluctuation numerical segment, to obtain the first proportion of the fluctuation degree of the port sea surface, and the filtering intensity compensation value is mapped. The initial filtering intensity value of the monitoring device is coupled with the filtering intensity compensation value. Specifically, the initial filtering intensity value of the monitoring device is added to the filtering intensity compensation value to obtain the corrected filtering intensity value of the monitoring device. At the same time, according to the initial filtering intensity value of the monitoring device, the filtering intensity compensation rate is mapped. In the next corrected sampling period, according to the filtering intensity compensation rate, the initial filtering intensity value of the monitoring device is increased to the corrected filtering intensity value of the monitoring device.

[0036] The above-mentioned corresponding span of the second sea surface fluctuation numerical segment, where the span refers to the length or range of the numerical segment, that is, the upper bound minus the lower bound. For example: if the second segment is defined as [L, U] (L is the lower bound and U is the upper bound), then the span = U - L. Or if the second segment is defined as [L, U) (L is the lower bound and U is the upper bound), then the span = U - L. The span directly originates from the definition of the numerical segment. Regardless of whether the interval is open or closed, the span is defined as the upper bound minus the lower bound (U - L). The calculation of the span only depends on the numerical upper and lower bounds and does not depend on whether the endpoints are included. Therefore, the open and closed intervals do not affect the span value itself, only whether the fluctuation value belongs to the segment.

[0037] The above-mentioned mapping to obtain the filtering intensity compensation value is specifically as follows: Obtain the mapping set of the first proportion of the fluctuation degree of the port sea surface and the filtering intensity compensation value from the seawater pump management library, and substitute the real-time first proportion of the fluctuation degree of the port sea surface into the mapping set to obtain the filtering intensity compensation value.

[0038] The above-mentioned mapping to obtain the filtering intensity compensation rate is specifically as follows: Obtain the mapping set of the initial filtering intensity value of the monitoring device and the filtering intensity compensation rate from the seawater pump management library, and substitute the real-time initial filtering intensity value of the monitoring device into the mapping set to obtain the filtering intensity compensation rate.

[0039] The difference between the fluctuation degree value of the port sea surface and the minimum value of the second sea surface fluctuation numerical segment is processed to obtain the deviation of the fluctuation degree of the port sea surface, and the emission power enhancement ratio is matched. The emission distance of the monitoring device is collected, where the emission distance can be obtained from the seawater pump management library, and the emission power enhancement ratio correction factor is mapped. The emission power enhancement ratio correction factor is coupled with the emission power enhancement ratio. Specifically, the emission power enhancement ratio correction factor is multiplied by the emission power enhancement ratio to obtain the emission power enhancement correction ratio. In the next corrected sampling period, the emission power enhancement correction ratio is coupled with the initial emission power of the monitoring device. Specifically, the emission power enhancement correction ratio is multiplied by the initial emission power of the monitoring device to increase the initial emission power of the monitoring device.

[0040] The above matching obtains the transmission power enhancement ratio, specifically: matching the deviation of the fluctuation degree of the port sea surface with the transmission power enhancement ratios corresponding to each predefined fluctuation degree deviation interval to determine the specific interval of the deviation of the fluctuation degree of the port sea surface, and obtaining the transmission power enhancement ratio corresponding to this interval.

[0041] The above mapping obtains the correction factor of the transmission power enhancement ratio, specifically: obtaining the mapping set of the transmission distance of the monitoring device and the correction factor of the transmission power enhancement ratio from the seawater pump management library, and substituting the transmission distance of the real-time monitoring device into the mapping set to obtain the correction factor of the transmission power enhancement ratio.

[0042] It should be explained that the reason for adjusting the initial filtering intensity value or the initial transmission power in the next correction sampling period is that the involved sampling period is a relatively short time interval. Considering that within the current correction sampling period, the fluctuation degree of the sea surface may not have reached the level that requires an immediate significant adjustment of the filtering intensity value, or the adjustment within this period may not fully adapt to the fluctuation changes. Postponing the adjustment operation to the next correction sampling period can avoid over-adjusting the filtering intensity value or the transmission power and prevent system instability caused by excessive adjustment amplitude. At the same time, within the current correction period, the monitoring device can continue to monitor according to the initial filtering intensity value or the initial transmission power, make full use of the existing monitoring resources, and obtain as much effective data as possible. Waiting until the next correction sampling period to adjust can ensure the reasonable utilization of the performance of the monitoring device without affecting the monitoring effect.

[0043] Specifically, the anti-interference operation for the monitoring device layout further includes: Mapping according to the third sea surface fluctuation numerical segment to obtain an adapted sampling period, obtaining the adapted sampling period of the monitoring device, and replacing the next sampling period of the monitoring device with the adapted sampling period to shorten the initial sampling period of the monitoring device.

[0044] The above mapping to obtain the adapted sampling period is specifically: obtaining the mapping set of the third sea surface fluctuation numerical segment and the adapted sampling period from the seawater pump management library, and substituting the real-time third sea surface fluctuation numerical segment into the mapping set to obtain the adapted sampling period.

[0045] Set the initial filtering intensity value of the monitoring device as the reference filtering intensity value of the monitoring device, and at the same time enable the echo feature recognition technology to filter out the interference echo signals of the port sea surface.

[0046] The fluctuation degree value of the port sea surface is subtracted from the minimum value of the third sea surface fluctuation numerical segment to obtain the fluctuation deviation degree value of the port sea surface, which is mapped to obtain the transmission power enhancement amount. The transmission distance of the monitoring device is collected and mapped to obtain the transmission power enhancement amount correction factor, which is coupled with the transmission power enhancement amount. Specifically, the transmission power enhancement amount correction factor is multiplied by the transmission power enhancement amount to obtain the corrected transmission power enhancement amount. In the next adaptation sampling period, the initial transmission power of the monitoring device is increased to the corrected transmission power enhancement amount.

[0047] In the next adaptation sampling period, continuously determine the interval to which the fluctuation degree value of the port sea surface belongs, and correct the anti-interference operation of the monitoring device layout.

[0048] The above echo feature recognition technology is specifically that the monitoring device receives echo signals, which include the liquid level reflection signals of each seawater constant-speed pump in the seawater pumping station and the interference echo signals generated by sea waves and the like. The collected echo signals are analyzed to extract their characteristics such as pulse width and rising edge. The waveform pattern matching algorithm judges whether each echo signal is closer to the characteristics of the liquid level echo signal or the characteristics of the wave interference echo signal by analyzing the characteristics of the echo signals. The characteristics of the liquid level echo signal are manifested as a stable pulse width and a steep rising edge. The characteristics of the wave interference echo signal are manifested as a randomly varying pulse width and a gentle rising edge. According to the comparison result, the wave interference echo signals are filtered out, and the effective liquid level echo signals are retained. Shielding or eliminating operations are performed on the signals identified as wave interference echo signals, so as to realize the purification of the liquid level reflection signals and improve the accuracy and reliability of the monitoring device for monitoring the liquid level of the seawater pumping station.

[0049] The above mapping to obtain the transmission power enhancement amount is specifically as follows: Obtain the mapping set of the fluctuation deviation degree value of the port sea surface and the transmission power enhancement amount from the seawater pump management library, and substitute the real-time fluctuation deviation degree value of the port sea surface into the mapping set to obtain the transmission power enhancement amount.

[0050] The above mapping to obtain the transmission power enhancement amount correction factor is specifically as follows: Obtain the mapping set of the transmission distance of the monitoring device and the transmission power enhancement amount correction factor from the seawater pump management library, and substitute the real-time transmission distance of the monitoring device into the mapping set to obtain the transmission power enhancement amount correction factor.

[0051] When the fluctuation degree of the port sea surface is relatively large, by comprehensively considering factors such as the deviation of the fluctuation degree and the transmission distance, the increased transmission power and the correction factor are mapped, and based on this, the initial transmission power of the monitoring device is increased, which can ensure that the monitoring device can still effectively transmit and receive signals at a relatively long distance or in complex sea conditions, improving the performance and reliability of the monitoring device in harsh sea conditions and ensuring the normal progress of liquid level monitoring. At the same time, the adjustment and correction of each parameter are based on the real-time sea surface fluctuation degree value and the specific situation of the monitoring device, and are automatically matched and calculated through the mapping set in the seawater pump management library, realizing the intelligent adjustment of the parameters of the monitoring device, improving the adaptability and intelligent level of the system to different sea conditions, and enabling it to better meet the actual operation requirements of the port seawater pumping station.

[0052] Furthermore, the anti-interference operation of the monitoring device layout is corrected. The specific analysis process is as follows: Extract the fluctuation degree value of the port sea surface in real time, count the residence time of the fluctuation degree value of the port sea surface belonging to the third sea surface fluctuation numerical segment, and compare it with the predefined residence time threshold. If the residence time is less than the residence time threshold, the adaptive sampling period of the monitoring device, the reference filtering intensity value of the monitoring device, and the increased amount of transmission power correction of the monitoring device are maintained.

[0053] If the residence time is greater than or equal to the residence time threshold, the adaptive sampling period of the monitoring device is set to the defined sampling period of the monitoring device, and the initial transmission power of the monitoring device is set to the defined transmission power of the monitoring device.

[0054] Enable multi-period moving average to obtain the mean value of liquid level jumps of each seawater constant speed pump. The mean value of liquid level jumps can be extracted from the records of the monitoring device, and is corrected with the influencing parameters corresponding to the predefined mean value of liquid level jumps. In addition, the deviation degree value of the port sea surface fluctuation is corrected with the influencing parameters corresponding to the predefined deviation degree value of fluctuation. Based on the correction result, the reference width of the sliding window is mapped, and the filtering sliding window width of the monitoring device is configured as the reference width of the sliding window.

[0055] The above correction result is specifically that the mean value of liquid level jumps of each seawater constant speed pump is multiplied by the influencing parameters corresponding to the mean value of liquid level jumps to obtain the first sub-value of the operation stability evaluation of the seawater pumping station. The deviation degree value of the port sea surface fluctuation is multiplied by the influencing parameters corresponding to the deviation degree value of fluctuation to obtain the second sub-value of the operation stability evaluation of the seawater pumping station. The first sub-value of the operation stability evaluation of the seawater pumping station is added to the second sub-value of the operation stability evaluation of the seawater pumping station to obtain the operation stability evaluation value of the seawater pumping station, which is recorded as the correction result.

[0056] The above mapping yields the reference width of the sliding window, specifically as follows: Obtain the mapping set of the operation stability evaluation value of the seawater pump station and the reference width of the sliding window from the seawater pump management library, and substitute the real-time operation stability evaluation value of the seawater pump station into the mapping set to obtain the reference width of the sliding window.

[0057] By statistically analyzing the residence duration of the sea surface fluctuation degree value in the third sea surface fluctuation numerical segment and comparing it with the predefined residence duration threshold, it is determined whether to maintain or adjust the relevant parameters of the monitoring device, which can avoid frequent adjustment of the monitoring device parameters due to short-term abnormalities in sea surface fluctuations, thereby improving the stability of liquid level monitoring. When the sea surface fluctuation degree remains large, setting the adaptive sampling period and initial transmission power of the monitoring device as the defined sampling period and defined transmission power can ensure the stable operation of the monitoring device under extreme sea conditions and guarantee the continuity and reliability of liquid level monitoring data. By enabling multi-period moving average to obtain the liquid level jump mean value and mapping the reference width of the sliding window in combination with the fluctuation deviation degree value of the port sea surface, and adjusting the filtering sliding window width of the monitoring device, it is possible to effectively filter out the liquid level signal jumps caused by sea surface fluctuations, enhance the anti-interference ability of the monitoring device under extreme surge conditions, enable the liquid level monitoring to more accurately reflect the real liquid level changes, and improve the adaptability of the port seawater pump station to different sea conditions.

[0058] Specifically, the intelligent liquid level regulation is executed, and the specific execution process is as follows: Obtain the real-time cumulative operation duration of each seawater variable-frequency pump, where the real-time cumulative operation duration is extracted from the operation records of each seawater variable-frequency pump. Perform a difference operation on the preset optimal operation duration of each seawater variable-frequency pump and the real-time cumulative operation duration of each seawater variable-frequency pump to obtain the remaining effective operation duration of each seawater variable-frequency pump. In the intelligent liquid level regulation strategy, preferentially start the seawater variable-frequency pump with the largest remaining effective operation duration to execute load compensation, and record the seawater variable-frequency pump with the largest remaining effective operation duration as the seawater variable-frequency compensation pump.

[0059] Preferentially starting the seawater variable-frequency pump with the largest remaining effective operation duration to execute load compensation can reasonably distribute the operation time of each pump, avoid overuse of one or several pumps, balance the wear of the equipment, extend the service life of the equipment, and reduce the maintenance cost.

[0060] Obtain the water intake flow rate of each seawater constant-speed pump at each fluctuation evaluation time point within the fluctuation evaluation period, where the water intake flow rate can be monitored by a flowmeter, and perform standard deviation processing to obtain the flow rate standard deviation of each seawater constant-speed pump.

[0061] According to the fluctuation degree value of the port sea surface, the flow fluctuation influence factors are matched and coupled with the flow standard deviations of each seawater constant-speed pump respectively. Specifically, the flow fluctuation influence factors are multiplied by the flow standard deviations of each seawater constant-speed pump to obtain the flow fluctuation degree values of each seawater constant-speed pump. The specific matching is as follows: the fluctuation degree value of the port sea surface is matched with the flow fluctuation influence factors corresponding to each predefined fluctuation degree value interval to determine the specific interval of the fluctuation degree value of the port sea surface, and the flow fluctuation influence factor corresponding to this interval is obtained.

[0062] According to the flow fluctuation degree values of each seawater constant-speed pump, determine the flow fluctuation intervals to which the flow fluctuation degree values of each seawater constant-speed pump belong, and implement the load distribution combined with liquid level regulation strategy.

[0063] The flow fluctuation intervals include the first flow fluctuation interval, the second flow fluctuation interval, and the third flow fluctuation interval.

[0064] The first flow fluctuation interval represents a relatively small degree of flow fluctuation. In this case, the flow rate at the water intake of the seawater pumping station is relatively stable, and the impact of sea surface fluctuations on the water intake is relatively small. Since the flow fluctuation is not significant, there is no need to perform additional load distribution combined with liquid level regulation operations. This indicates that the current operating condition is relatively stable, and the pumping station can operate effectively under the existing configuration.

[0065] The second flow fluctuation interval indicates a medium degree of flow fluctuation. At this time, the flow rate at the water intake fluctuates to a certain extent, which may be caused by the water flow changes due to sea surface fluctuations. It is necessary to perform load compensation operations according to the priority of the seawater variable-frequency compensation pump. In this case, the seawater variable-frequency pump with the largest remaining effective operation duration will be preferentially selected to bear the additional load to maintain the stability and efficiency of the pumping station operation.

[0066] The third flow fluctuation interval means a relatively large degree of flow fluctuation. In this case, the flow rate fluctuation at the water intake is relatively significant, which may have a greater impact on the normal operation of the pumping station. Consider the operation of both the seawater variable-frequency compensation pump and the standby pump to maintain the normal operation of the pumping station.

[0067] The fluctuation degree of the port sea surface will directly affect the flow rate stability of the water intake of the seawater pumping station. When the sea surface fluctuates greatly, the impact and surging of the waves will make the water flow condition at the water intake of the seawater pumping station become complex and changeable, which will in turn cause the water intake flow rates of each seawater constant-speed pump to fluctuate. By corresponding different sea surface fluctuation numerical segments to the corresponding flow fluctuation intervals, the fluctuation degree of the sea surface can be closely linked to the actual operating conditions of the seawater pumping station. This corresponding relationship enables the system to anticipate in advance and accurately grasp the possible flow fluctuation problems faced by each seawater constant-speed pump of the seawater pumping station according to the sea surface fluctuation situation, thereby providing a basis for adopting targeted load distribution combined with liquid level regulation strategies and realizing precise control of the seawater pumping station.

[0068] If the flow rate fluctuation degree value of a certain seawater fixed-speed pump belongs to the first flow rate fluctuation interval, there is no need to perform load distribution combined with liquid level regulation.

[0069] If the flow rate fluctuation degree value of a certain seawater fixed-speed pump belongs to the second flow rate fluctuation interval or the flow rate fluctuation degree value of a certain seawater fixed-speed pump belongs to the third flow rate fluctuation interval, then based on the seawater variable-frequency compensation pump, a load distribution combined with liquid level regulation strategy is executed.

[0070] Furthermore, the process of executing the load distribution combined with liquid level regulation strategy is as follows: If the flow rate fluctuation degree value of a certain seawater fixed-speed pump belongs to the second flow rate fluctuation interval, obtain the real-time liquid level value of the seawater fixed-speed pump, perform a difference process with the predefined reference liquid level value to obtain the liquid level value deviation of the seawater fixed-speed pump, where the real-time liquid level value can be extracted from the monitoring records of the monitoring device.

[0071] If the liquid level value deviation of the seawater fixed-speed pump is greater than or equal to zero and less than or equal to the first permitted deviation of the predefined liquid level value, there is no need to perform load distribution combined with liquid level regulation. If the liquid level value deviation of the seawater fixed-speed pump is greater than or equal to zero and greater than the first permitted deviation of the liquid level value, in the next sampling period, lower the real-time liquid level value of the seawater fixed-speed pump to the reference liquid level value of the seawater fixed-speed pump.

[0072] If the liquid level value deviation of the seawater fixed-speed pump is less than zero and greater than or equal to the second permitted deviation of the liquid level value, there is no need to perform load distribution combined with liquid level regulation. If the liquid level value deviation of the seawater fixed-speed pump is less than zero and less than the second permitted deviation of the liquid level value, execute the liquid level regulation measures corresponding to the second permitted deviation of the liquid level value, and count the continuous duration of the liquid level value deviation of the seawater fixed-speed pump being less than or equal to the second permitted deviation of the liquid level value, which is recorded as the continuous duration of the liquid level value deviation.

[0073] According to the liquid level value deviation of the seawater fixed-speed pump, map to obtain the adapted load rate of the seawater fixed-speed pump.

[0074] By monitoring the continuous duration of the liquid level value deviation of the seawater fixed-speed pump, the abnormal liquid level situation can be detected in time and the load rate of the pump can be adjusted, making the operating state of the pump more in line with the actual requirements, improving the system operating efficiency, and reducing energy waste.

[0075] Compare the continuous duration of the liquid level value deviation with the predefined continuous duration boundary of the liquid level value deviation. If the continuous duration of the liquid level value deviation is less than or equal to the continuous duration boundary of the liquid level value deviation, adjust the real-time load rate of the seawater fixed-speed pump to the adapted load rate of the seawater fixed-speed pump.

[0076] The above mapping obtains the adapted load rate of the seawater fixed-speed pump, specifically: obtaining the mapping set of the liquid level value deviation and the adapted load rate of the seawater fixed-speed pump from the seawater pump management library, and substituting the real-time liquid level value deviation of the seawater fixed-speed pump into the mapping set to obtain the adapted load rate of the seawater fixed-speed pump.

[0077] When the duration of the liquid level value deviation is short, the problem is solved by adjusting the load rate of the seawater fixed-speed pump; while when the duration of the deviation is long, the faulty pump is promptly shut down and the seawater variable-frequency compensation pump is started for load compensation, which can effectively handle the liquid level deviation problem and ensure the normal operation of the seawater pumping station.

[0078] If the duration of the liquid level value deviation is greater than the defined duration of the liquid level value deviation, then the seawater fixed-speed pump is shut down, and the seawater variable-frequency compensation pump is started to perform load compensation, and the seawater variable-frequency compensation pump is configured based on the adapted load rate of the seawater fixed-speed pump.

[0079] If the liquid level value deviation of the seawater fixed-speed pump is less than zero and less than the defined liquid level deviation, then the liquid level adjustment measures corresponding to the second permitted deviation of the liquid level value are corrected.

[0080] The above-defined liquid level deviation is expressed as the minimum permitted deviation value of the liquid level value deviation, and the defined liquid level deviation is less than the second permitted deviation of the liquid level value. The defined liquid level deviation, as the minimum permitted deviation value of the liquid level value deviation, clarifies the lower limit threshold of the liquid level deviation. When the liquid level value deviation of the seawater fixed-speed pump is less than zero and less than the defined liquid level deviation, it indicates that the liquid level deviation has exceeded the normal allowable range and is in an overly small state. This helps to promptly identify the situation of overly small liquid level deviation and avoid abnormal situations such as the pumping station sucking in air or being unable to supply water normally due to too low a liquid level. The introduction of the defined liquid level deviation enables the seawater pumping station to reasonably distribute the loads of each pump when the liquid level deviation is overly small. When the liquid level value deviation is less than the defined liquid level deviation, the seawater fixed-speed pump with an overly small liquid level deviation is shut down at the pumping station, and the seawater variable-frequency compensation pump is started for load compensation. This load distribution method can optimize the coordinated operation of multiple pumps, avoid single-pump overload or inefficient operation, and improve the overall performance and operation efficiency of the pumping station regulation.

[0081] When the flow fluctuation degree value of a certain seawater fixed-speed pump exceeds the limit and lasts for too long, shutting down the faulty pump and starting the seawater variable-frequency compensation pump can ensure the continuous and stable supply of seawater by the seawater pumping station, avoid abnormal operation of the entire seawater pumping station caused by a single-pump failure, and improve the reliability of the system. Introducing parameters such as the duration of the liquid level value deviation to more carefully monitor and judge the operating state of the seawater fixed-speed pump enables the system to more accurately grasp the operating conditions of the pump, and then take more reasonable control measures to enhance the system's response ability to complex working conditions.

[0082] Specifically, the liquid level adjustment measures corresponding to the second permitted deviation of the liquid level value are corrected, and the specific analysis process is as follows: If the liquid level value deviation of the seawater fixed-speed pump is less than zero and greater than or equal to the defined liquid level value deviation, control the seawater fixed-speed pump to maintain the adapted load rate.

[0083] If the liquid level value deviation of the seawater fixed-speed pump is less than zero and less than the defined liquid level value deviation, give an alarm and shut down the seawater fixed-speed pump. At the same time, compare the adapted load rate of the seawater fixed-speed pump with the maximum allowable load rate of the predefined seawater variable-frequency compensation pump. If the adapted load rate of the seawater fixed-speed pump is less than or equal to the maximum allowable load rate of the seawater variable-frequency compensation pump, control the seawater variable-frequency compensation pump to maintain the adapted load rate.

[0084] If the adapted load rate of the seawater fixed-speed pump is greater than the maximum allowable load rate of the seawater variable-frequency compensation pump, perform a difference process on the adapted load rate of the seawater fixed-speed pump and the maximum allowable load rate of the seawater variable-frequency compensation pump to obtain and record it as the adapted load rate overflow. Configure the seawater variable-frequency compensation pump based on the adapted load rate and configure the second seawater variable-frequency compensation pump based on the adapted load rate overflow. The second seawater variable-frequency compensation pump refers to the seawater variable-frequency pump with the second remaining effective operation duration being recorded as the second seawater variable-frequency compensation pump.

[0085] Considering the coordinated operation relationship among the seawater fixed-speed pump, the seawater variable-frequency compensation pump, and the standby pump, by comparing the adapted load rate with the maximum allowable load rate of the seawater variable-frequency compensation pump, reasonably configure the loads of each pump to achieve the efficient coordinated operation of multiple pumps and improve the overall performance of the system. Introduce parameters such as the adapted load rate overflow to further refine the load distribution process, ensure that the load configuration of each pump is more reasonable, avoid equipment overload or inefficient operation caused by uneven load distribution, and enhance the stability and operation efficiency of the system.

[0086] Furthermore, implementing the load distribution combined with liquid level regulation strategy also includes: If the flow rate fluctuation degree value of a certain seawater fixed-speed pump belongs to the third flow rate fluctuation interval, extract the liquid level change rate of the seawater fixed-speed pump in real time. The liquid level change rate can be obtained from the monitoring records of the monitoring equipment. Perform a difference process with the predefined liquid level change rate threshold to obtain the first safety deviation of the liquid level change of the seawater fixed-speed pump, and map it to the adapted rotation speed of the standby pump for configuring the standby pump and starting the standby pump for predictive acceleration to reduce the liquid level change rate of the seawater fixed-speed pump.

[0087] The above-mentioned mapping to obtain the adapted rotation speed of the standby pump is specifically as follows: Obtain the mapping set of the first safety deviation of the liquid level change of the seawater fixed-speed pump and the adapted rotation speed of the standby pump from the seawater pump management library, and substitute the real-time first safety deviation of the liquid level change of the seawater fixed-speed pump into the mapping set to obtain the adapted rotation speed of the standby pump.

[0088] When the flow fluctuation degree value of a certain seawater constant-speed pump belongs to the third flow fluctuation range, the standby pump starts in time for predictive acceleration to assist in reducing the liquid level change rate of the seawater constant-speed pump and prevent the system from becoming unstable due to too rapid liquid level change. That is, when the seawater constant-speed pump in the current cycle is insufficient to meet the load demand, as an additional compensatory force, it jointly maintains the liquid level stability of the seawater pumping station.

[0089] Obtain the actual speed of the standby pump, where the actual speed can be extracted from the execution record of the standby pump, map it to obtain the estimated liquid level change rate of the seawater constant-speed pump, perform a difference processing with the liquid level change rate threshold to obtain the second safety deviation of the liquid level change of the seawater constant-speed pump, map it to obtain the predictive load rate of the seawater variable-frequency compensation pump, and connect the seawater variable-frequency compensation pump in the next sampling cycle and configure the seawater variable-frequency compensation pump based on the predictive load rate.

[0090] The above-mentioned mapping to obtain the estimated liquid level change rate of the seawater constant-speed pump: obtain the mapping set of the actual speed and the estimated liquid level change rate of the standby pump from the seawater pump management library, and substitute the real-time actual speed of the standby pump into the mapping set to obtain the estimated liquid level change rate of the seawater constant-speed pump.

[0091] The above-mentioned mapping to obtain the predictive load rate of the seawater variable-frequency compensation pump is specifically as follows: obtain the mapping set of the second safety deviation of the liquid level change and the predictive load rate of the seawater constant-speed pump from the seawater pump management library, and substitute the real-time second safety deviation of the liquid level change of the seawater constant-speed pump into the mapping set to obtain the predictive load rate of the seawater variable-frequency compensation pump.

[0092] Real-time statistics of the falling maintenance duration when the liquid level change rate of the seawater constant-speed pump is less than the liquid level change rate threshold, where the falling maintenance duration represents the continuous duration when the liquid level change rate of the seawater constant-speed pump is less than the liquid level change rate threshold. If the falling maintenance duration is greater than or equal to the falling maintenance adaptation duration, the standby pump decelerates and shuts down, maintaining the predictive load rate configuration of the seawater variable-frequency compensation pump. If the falling maintenance duration is less than the falling maintenance adaptation duration, then according to the difference between the falling maintenance duration and the falling maintenance adaptation duration, map the predictive adaptation load rate of the seawater variable-frequency compensation pump, and in the next sampling cycle, reconfigure the seawater variable-frequency compensation pump with the predictive adaptation load rate.

[0093] The above-mentioned mapping of the predictive adaptation load rate of the seawater variable-frequency compensation pump is specifically as follows: denote the difference between the falling maintenance duration and the falling maintenance adaptation duration as the falling maintenance duration deviation, obtain the mapping set of the falling maintenance duration deviation and the predictive adaptation load rate from the seawater pump management library, and substitute the real-time falling maintenance duration deviation into the mapping set to obtain the predictive adaptation load rate of the seawater variable-frequency compensation pump.

[0094] Extract the liquid level change rate of the seawater fixed-speed pump in real time and compare it with the threshold value, which can detect the risk of abnormal liquid level change in advance, start the standby pump in time for predictive acceleration, reduce the liquid level change rate of the seawater fixed-speed pump, and ensure the stable operation of the system. By mapping, parameters such as the adapted rotational speed of the standby pump and the predictive load rate of the seawater variable-frequency compensation pump are obtained, and the pump configuration is dynamically adjusted according to the real-time working conditions, so that the system can quickly adapt to the liquid level change, improve the response ability and adaptability to complex working conditions. The duration of the liquid level change rate of the seawater fixed-speed pump falling back and maintaining is statistically calculated, and according to the comparison result of this duration and the adapted duration, the operating states of the standby pump and the seawater variable-frequency compensation pump are flexibly adjusted, further improving the self-regulation mechanism of the system, so that the system can maintain a good operating state under different working conditions.

[0095] Referring to Figure 2 As shown, the second aspect of the present invention provides a control method for the intelligent liquid level of a port seawater pumping station, including: collecting the data of the sea surface stability change of the port in real time and determining the fluctuation degree value of the port sea surface.

[0096] According to the fluctuation degree value of the port sea surface, determine the specific fluctuation degree numerical segment, and perform anti-interference operations on the monitoring equipment of the port seawater pumping station in real time.

[0097] When performing anti-interference operations on the monitoring equipment of the port seawater pumping station in real time, perform intelligent liquid level adjustment on each seawater sub-pump of the port seawater pumping station.

[0098] Each seawater sub-pump of the port seawater pumping station includes each seawater fixed-speed pump and each seawater variable-frequency pump.

[0099] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology make various modifications or supplements or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the invention or exceed the scope defined by the present invention, they should all belong to the protection scope of the present invention.

Claims

1. An intelligent liquid level regulating system for a port seawater pumping station, characterized in that, Including: A sea surface fluctuation degree determination module, which is used to collect the change data of the sea surface stability of the port in real time and determine the fluctuation degree value of the port sea surface; An anti-interference operation layout module, which is used to determine the specific fluctuation degree value segment according to the fluctuation degree value of the port sea surface and perform anti-interference operations on the monitoring equipment of the port seawater pumping station in real time; An intelligent liquid level adjustment module, which is used to perform intelligent liquid level adjustment on each seawater sub-pump of the port seawater pumping station when performing anti-interference operations on the monitoring equipment of the port seawater pumping station in real time; Each seawater sub-pump of the port seawater pumping station includes each seawater constant speed pump and each seawater variable frequency pump.

2. The intelligent liquid level regulating system for a port seawater pumping station according to claim 1, characterized in that: The specific analysis process of performing anti-interference operations on the monitoring equipment of the port seawater pumping station in real time is as follows: The change data of the sea surface stability of the port includes the wave peak-to-valley ratio of the port sea surface, the wave energy flux of the port sea surface, the combined standard deviation of the wave acceleration of the port sea surface, and the wave surface kurtosis of the port sea surface; The specific method for determining the fluctuation degree value of the port sea surface is to perform normalization processing on the wave peak-to-valley ratio of the port sea surface, the wave energy flux of the port sea surface, the combined standard deviation of the wave acceleration of the port sea surface, and the wave surface kurtosis of the port sea surface respectively to obtain the normalization processing results, and then perform weighted aggregation in sequence to obtain the fluctuation degree value of the port sea surface; Compare the fluctuation degree value of the port sea surface with each predefined fluctuation degree value segment to determine the specific value segment of the fluctuation degree value of the port sea surface: Each of the fluctuation degree value segments includes a first sea surface fluctuation value segment, a second sea surface fluctuation value segment, and a third sea surface fluctuation value segment; If the fluctuation degree value of the port sea surface belongs to the first sea surface fluctuation value segment, the initial sampling period of the monitoring equipment, the initial filtering intensity value of the monitoring equipment, and the initial transmission power of the monitoring equipment are maintained; If the fluctuation degree value of the port sea surface belongs to the second sea surface fluctuation value segment or the fluctuation degree value of the port sea surface belongs to the third sea surface fluctuation value segment, anti-interference operations are performed on the monitoring equipment.

3. The intelligent liquid level regulation system for a port seawater pumping station according to claim 2, characterized in that: The specific analysis process of performing anti-interference operations on the monitoring equipment is as follows: When the fluctuation degree value of the port sea surface belongs to the second sea surface fluctuation value segment, extract a period preset adjustment factor and couple it with the initial sampling period of the monitoring equipment to obtain the corrected sampling period of the monitoring equipment, which is used to shorten the initial sampling period of the monitoring equipment; Perform a ratio processing on the fluctuation degree value of the port sea surface and the corresponding span of the second sea surface fluctuation value segment to obtain the first proportion of the fluctuation degree of the port sea surface, map it to obtain a filtering intensity compensation value, couple the initial filtering intensity value of the monitoring equipment with the filtering intensity compensation value to obtain the corrected filtering intensity value of the monitoring equipment. At the same time, according to the initial filtering intensity value of the monitoring equipment, map to obtain a filtering intensity compensation rate. In the next corrected sampling period, increase the initial filtering intensity value of the monitoring equipment to the corrected filtering intensity value according to the filtering intensity compensation rate; The fluctuation degree value of the port sea surface is subtracted from the minimum value of the second sea surface fluctuation numerical segment to obtain the fluctuation degree deviation of the port sea surface. The emission power enhancement ratio is obtained by matching. The emission distance of the monitoring device is collected, and the emission power enhancement ratio correction factor is obtained by mapping. It is coupled with the emission power enhancement ratio to obtain the emission power enhancement correction ratio. In the next correction sampling period, the emission power enhancement correction ratio is coupled with the initial emission power of the monitoring device to increase the initial emission power of the monitoring device.

4. The intelligent liquid level regulating system for a port seawater pumping station according to claim 2, characterized in that: The anti-interference operation arranged for the monitoring device further includes: According to the third sea surface fluctuation numerical segment, the adapted sampling period is obtained by mapping, and the adapted sampling period of the monitoring device is obtained. The next sampling period of the monitoring device is replaced with the adapted sampling period to shorten the initial sampling period of the monitoring device; The initial filtering intensity value of the monitoring device is set to the reference filtering intensity value of the monitoring device, and at the same time, the echo feature recognition technology is enabled to filter out the interference echo signals of the port sea surface; The fluctuation degree value of the port sea surface is subtracted from the minimum value of the third sea surface fluctuation numerical segment to obtain the fluctuation deviation degree value of the port sea surface. The emission power enhancement amount is obtained by mapping. The emission distance of the monitoring device is collected, and the emission power enhancement amount correction factor is obtained by mapping. It is coupled with the emission power enhancement amount to obtain the emission power correction enhancement amount. In the next adapted sampling period, the initial emission power of the monitoring device is increased to the emission power correction enhancement amount; In the next adapted sampling period, the interval belonging situation of the fluctuation degree value of the port sea surface is continuously determined, and the anti-interference operation arranged for the monitoring device is corrected.

5. The intelligent liquid level regulating system for a port seawater pump station according to claim 4, characterized in that: The specific analysis process for correcting the anti-interference operation arranged for the monitoring device is as follows: The fluctuation degree value of the port sea surface is extracted in real time, and the residence time of the fluctuation degree value of the port sea surface belonging to the third sea surface fluctuation numerical segment is counted and compared with the predefined residence time threshold. If the residence time is less than the residence time threshold, the adapted sampling period of the monitoring device, the reference filtering intensity value of the monitoring device, and the emission power correction enhancement amount of the monitoring device are maintained; If the residence time is greater than or equal to the residence time threshold, the adapted sampling period of the monitoring device is set to the defined sampling period of the monitoring device, and the initial emission power of the monitoring device is set to the defined emission power of the monitoring device; The multi-period moving average is enabled to obtain the liquid level jump mean value of each seawater constant speed pump, and it is corrected with the influence parameter corresponding to the predefined liquid level jump mean value. Also, the fluctuation deviation degree value of the port sea surface is corrected with the influence parameter corresponding to the deviation degree value. Based on the correction result, the sliding window reference width is obtained by mapping, and the filtering sliding window width of the monitoring device is configured as the sliding window reference width.

6. The intelligent liquid level regulating system for a port seawater pumping station according to claim 1, characterized in that: The specific execution process of the intelligent liquid level regulation is as follows: Obtain the real-time cumulative operation duration of each seawater variable-frequency pump, perform a difference operation between the preset optimal operation duration of each seawater variable-frequency pump and the real-time cumulative operation duration of each seawater variable-frequency pump to obtain the remaining effective operation duration of each seawater variable-frequency pump. In the intelligent liquid level regulation strategy, preferentially start the seawater variable-frequency pump with the largest remaining effective operation duration to perform load compensation, and record the seawater variable-frequency pump with the largest remaining effective operation duration as the seawater variable-frequency compensation pump; Obtain the water intake flow rates of each seawater constant-speed pump at each fluctuation evaluation time point within the fluctuation evaluation period, perform standard deviation processing to obtain the flow rate standard deviation of each seawater constant-speed pump; According to the fluctuation degree value of the port sea surface, match to obtain the flow rate fluctuation influence factor, and couple it with the flow rate standard deviation of each seawater constant-speed pump respectively to obtain the flow rate fluctuation degree value of each seawater constant-speed pump; According to the flow rate fluctuation degree value of each seawater constant-speed pump, determine the flow rate fluctuation interval to which the flow rate fluctuation degree value of each seawater constant-speed pump belongs, and execute the load distribution combined with liquid level regulation strategy; The flow rate fluctuation interval includes the first flow rate fluctuation interval, the second flow rate fluctuation interval, and the third flow rate fluctuation interval; If the flow rate fluctuation degree value of a certain seawater constant-speed pump belongs to the first flow rate fluctuation interval, there is no need to execute the load distribution combined with liquid level regulation; If the flow rate fluctuation degree value of a certain seawater constant-speed pump belongs to the second flow rate fluctuation interval or the flow rate fluctuation degree value of a certain seawater constant-speed pump belongs to the third flow rate fluctuation interval, then based on the seawater variable-frequency compensation pump, execute the load distribution combined with liquid level regulation strategy.

7. The intelligent liquid level regulating system for a port seawater pumping station according to claim 6, characterized in that: The specific analysis process of the execution of the load distribution combined with liquid level regulation strategy is as follows: If the flow rate fluctuation degree value of a certain seawater constant-speed pump belongs to the second flow rate fluctuation interval, obtain the real-time liquid level value of this seawater constant-speed pump, perform a difference operation with the predefined reference liquid level value to obtain the liquid level value deviation of the seawater constant-speed pump; If the liquid level value deviation of the seawater constant-speed pump is greater than or equal to zero and less than or equal to the predefined first liquid level value permission deviation, there is no need to execute the load distribution combined with liquid level regulation. If the liquid level value deviation of the seawater constant-speed pump is greater than or equal to zero and greater than the first liquid level value permission deviation, in the next sampling period, lower the real-time liquid level value of the seawater constant-speed pump to the reference liquid level value of the seawater constant-speed pump; If the liquid level value deviation of the seawater constant-speed pump is less than zero and greater than or equal to the second liquid level value permission deviation, there is no need to execute the load distribution combined with liquid level regulation. If the liquid level value deviation of the seawater constant-speed pump is less than zero and less than the second liquid level value permission deviation, execute the liquid level regulation measure corresponding to the second liquid level value permission deviation, and count the continuous duration during which the liquid level value deviation of the seawater constant-speed pump is less than or equal to the second liquid level value permission deviation, and record it as the liquid level value deviation continuous duration; According to the liquid level value deviation of the seawater constant-speed pump, map to obtain the adapted load rate of the seawater constant-speed pump; Compare the liquid level value deviation continuous duration with the predefined liquid level value deviation continuous definition duration. If the liquid level value deviation continuous duration is less than or equal to the liquid level value deviation continuous definition duration, adjust the real-time load rate of the seawater constant-speed pump to the adapted load rate of the seawater constant-speed pump; If the duration of the liquid level value deviation continues to be greater than the defined duration of the liquid level value deviation, then turn off the seawater constant-speed pump, start the seawater variable-frequency compensation pump to perform load compensation, and configure the seawater variable-frequency compensation pump based on the adapted load rate of the seawater constant-speed pump; If the liquid level value deviation of the seawater constant-speed pump is less than zero and less than the defined liquid level deviation, then correct and execute the liquid level adjustment measures corresponding to the second permitted deviation of the liquid level value.

8. The intelligent liquid level regulation system for a port seawater pumping station according to claim 7, characterized in that: The specific analysis process for the above-mentioned correction and execution of the liquid level adjustment measures corresponding to the second permitted deviation of the liquid level value is as follows: If the liquid level value deviation of the seawater constant-speed pump is less than zero and greater than or equal to the defined liquid level deviation, then control the seawater constant-speed pump to maintain the adapted load rate; If the liquid level value deviation of the seawater constant-speed pump is less than zero and less than the defined liquid level deviation, then give an alarm and turn off the seawater constant-speed pump. At the same time, compare the adapted load rate of the seawater constant-speed pump with the maximum permitted load rate of the predefined seawater variable-frequency compensation pump. If the adapted load rate of the seawater constant-speed pump is less than or equal to the maximum permitted load rate of the seawater variable-frequency compensation pump, then control the seawater variable-frequency compensation pump to maintain the adapted load rate; If the adapted load rate of the seawater constant-speed pump is greater than the maximum permitted load rate of the seawater variable-frequency compensation pump, then perform a difference operation on the adapted load rate of the seawater constant-speed pump and the maximum permitted load rate of the seawater variable-frequency compensation pump to obtain and record it as the overflow amount of the adapted load rate. Configure the seawater variable-frequency compensation pump based on the adapted load rate, and configure the second seawater variable-frequency compensation pump based on the overflow amount of the adapted load rate.

9. The intelligent liquid level regulating system for a port seawater pumping station according to claim 8, characterized in that: The above-mentioned execution of the load distribution combined with the liquid level adjustment strategy also includes: If the flow rate fluctuation degree value of a certain seawater constant-speed pump belongs to the third flow rate fluctuation range, then extract the liquid level change rate of the seawater constant-speed pump in real time, perform a difference operation with the predefined liquid level change rate threshold to obtain the first safety deviation of the liquid level change of the seawater constant-speed pump, map it to the adapted rotational speed of the standby pump for configuring the standby pump, start the standby pump for predictive acceleration, and reduce the liquid level change rate of the seawater constant-speed pump; Obtain the actual rotational speed of the standby pump, map it to the predicted liquid level change rate of the seawater constant-speed pump, perform a difference operation with the liquid level change rate threshold to obtain the second safety deviation of the liquid level change of the seawater constant-speed pump, map it to the predicted load rate of the seawater variable-frequency compensation pump, connect the seawater variable-frequency compensation pump in the next sampling period, and configure the seawater variable-frequency compensation pump based on the predicted load rate; Real-time statistics of the falling maintenance duration during which the liquid level change rate of the seawater constant-speed pump is less than the liquid level change rate threshold. If the falling maintenance duration is greater than or equal to the adapted falling maintenance duration, then the standby pump decelerates and stops, maintaining the predicted load rate configuration of the seawater variable-frequency compensation pump. If the falling maintenance duration is less than the adapted falling maintenance duration, then map the predicted adapted load rate of the seawater variable-frequency compensation pump according to the difference between the falling maintenance duration and the adapted falling maintenance duration, and reconfigure the seawater variable-frequency compensation pump with the predicted adapted load rate in the next sampling period.

10. A control method for an intelligent liquid level regulation system applied to the seawater pumping station at the port described in any one of claims 1-9, characterized in that: It includes: Real-time collect the data of the sea surface stability change in the port and determine the fluctuation degree value of the port sea surface; According to the fluctuation degree value of the port sea surface, determine the specific fluctuation degree numerical segment, and perform anti-interference operations on the monitoring equipment of the port seawater pumping station in real time; When performing anti-interference operations on the real-time layout of the monitoring equipment of the port seawater pump station, intelligent liquid level adjustment is carried out on each seawater sub-pump of the port seawater pump station; Each seawater sub-pump of the port seawater pump station includes each seawater constant-speed pump and each seawater variable-frequency pump.

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