Intelligent liquid level regulation system and control method for port seawater pumping station

Abstract

The present invention relates to the field of control and regulation technology, specifically disclosing an intelligent liquid level regulation system and control method for a port seawater pumping station. The system comprises a sea surface fluctuation determination module, an anti-interference operation deployment module, and an intelligent liquid level regulation module. The system collects real-time data on changes in port sea surface stability, determines the degree of fluctuation, determines a specific numerical range based on the fluctuation, and deploys anti-interference operations in real time for the seawater pumping station's monitoring equipment. During the execution of the anti-interference operations, intelligent liquid level regulation is performed on each of the seawater pumps in the seawater pumping station. This process optimizes the configuration of monitoring equipment, improves monitoring accuracy, ensures stable equipment operation, and extends its service life. It also ensures a stable seawater supply to meet port operation requirements.

Description

Technical Field

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

[0002] Port operations, such as ship cooling, port facility cleaning, and desalination, rely on a stable supply of seawater. Different operational scenarios require varying seawater demand and supply pressures, necessitating precise level control at seawater pumping stations to ensure a stable and reliable seawater supply and meet diverse port operational needs. Operating seawater pumps and other equipment with excessively high or low liquid levels can easily lead to malfunctions or even damage. Intelligent liquid level control systems can improve the overall operational efficiency and service life of equipment by monitoring and adjusting liquid levels in real time.

[0003] For example, the invention patent with announcement number CN110874103B discloses a control method, control system, and control device for a seawater desalination test platform. The control method includes: obtaining hydraulic oil pressure information of a first hydraulic pump in a fan direct-drive hydraulic pump simulation system; obtaining operating 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; and controlling the first hydraulic pump to adjust the output flow of the hydraulic oil based on the hydraulic oil pressure information and the power difference, 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 the output power corresponding to the fan operating conditions according to different operating 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 adjustment scheme is only based on a single seawater pump parameter for control settings. Due to the complex port operating conditions, the seawater pump control and adjustment scheme is easily affected by multiple external variables. If the control algorithm is single, it is easy to lead to insufficient adaptability of the adjustment scheme. At the same time, when multiple pumps are operated in parallel, a single seawater pump parameter cannot achieve liquid level balance, which easily causes greater instability in the seawater pump control and adjustment. Summary of the Invention

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

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A first aspect of the present invention provides an intelligent liquid level regulation system for a port seawater pumping station, comprising: a sea surface fluctuation degree determination module, for collecting sea surface stability change data of the port in real time and determining the fluctuation degree value of the port sea surface; an anti-interference operation deployment module, for determining a specific fluctuation degree value segment based on the fluctuation degree value of the port sea surface, and deploying anti-interference operations in real time for the monitoring equipment of the port seawater pumping station; an intelligent liquid level regulation module, for performing intelligent liquid level regulation on each seawater sub-pump of the port seawater pumping station when anti-interference operations are deployed in real time for the monitoring equipment of the port seawater pumping station; each seawater sub-pump of the port seawater pumping station includes each seawater constant speed pump and each seawater variable frequency pump.

[0008] The second aspect of the present invention provides an intelligent liquid level control method for a port seawater pumping station, comprising: real-time collection of sea surface stability change data of the port to determine the fluctuation degree value of the port sea surface; based on the fluctuation degree value of the port sea surface, determining the specific fluctuation degree value segment, and deploying anti-interference operations for the monitoring equipment of the port seawater pumping station in real time; when the anti-interference operations are deployed for 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; each seawater sub-pump of the port seawater pumping station includes each seawater constant speed pump and each seawater variable frequency pump.

[0009] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0010] (1) The present invention provides an intelligent liquid level regulation system and control method for a port seawater pumping station. By collecting port sea surface stability change data in real time, the fluctuation degree value is determined, and a specific numerical segment is determined based on the fluctuation degree value. Anti-interference operation is deployed in real time for the seawater pumping station monitoring equipment. When the anti-interference operation is performed, the liquid level of each seawater sub-pump of the seawater pumping station is intelligently regulated. 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 stability of the seawater supply to meet the port operation needs.

[0011] (2) The present invention determines the degree of fluctuation of the port sea surface by collecting data on changes in sea surface stability. By understanding the sea surface fluctuation, the monitoring equipment can be optimized and configured in a targeted manner, such as adjusting the sampling period, filter intensity and transmission power, thereby improving the performance and reliability of the monitoring equipment under different sea conditions and ensuring the accuracy and validity of the monitoring data. The operating parameters of the monitoring equipment and the seawater pumping station are reasonably adjusted according to the degree of sea surface fluctuation to avoid excessive operation or excessive stress of the equipment under severe sea conditions, which helps to extend the service life of the equipment and reduce the maintenance and replacement costs of the equipment.

[0012] (3) 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 fluctuation of the sea level through intelligent liquid level regulation of the port, providing a stable and reliable seawater supply, meeting the seawater demand of different operating 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 pump according to the liquid level conditions and equipment operating status, so that each seawater sub-pump operates in the high-efficiency range, can adapt to the complex working conditions and multi-variable interference of the port, improve the overall operating efficiency of the equipment, and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of system module connections of the present invention;

[0015] Figure 2 Schematic diagram of the method steps of the present invention;

[0016] Figure 3 Lay out a flow chart for anti-interference operations;

[0017] Figure 4 Configure the flow chart for the level regulation load. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Reference Figure 1 As shown, the first aspect of the present invention provides an intelligent liquid level control system for a port seawater pumping station, comprising: a sea surface fluctuation degree determination module, an anti-interference operation deployment module, an intelligent liquid level control module, and a seawater pump management library. The seawater pump management library is used to store preset values ​​of various factors.

[0020] 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 adjustment module, and the sea surface fluctuation degree determination module, the anti-interference operation layout module, and the intelligent liquid level adjustment module are all connected to the seawater pump management library.

[0021] The sea surface fluctuation degree determination module is used to collect the port's sea surface stability change data in real time and determine the port's sea surface fluctuation degree value.

[0022] The anti-interference operation deployment module is used to determine the specific fluctuation degree value segment according to the fluctuation degree value of the port sea surface, and to deploy anti-interference operations for the monitoring equipment of the port seawater pumping station in real time.

[0023] The monitoring equipment is set up for real-time anti-interference operation. The specific process is as follows: Figure 3 As shown, Figure 3 A flowchart is set up for anti-interference operations to determine the degree of fluctuation of the port sea surface in real time. This value is compared with three predefined fluctuation value segments. When it belongs to the second or third sea surface fluctuation value segment, anti-interference operations are set up for the monitoring equipment, including adjusting the sampling period, filter strength and transmission power. At the same time, echo feature recognition technology is enabled to filter out interference signals, and the transmission power enhancement amount is obtained according to the proportion of the fluctuation degree value, and the initial transmission power is adjusted. In addition, the anti-interference operation of the monitoring equipment is adjusted in real time according to the fluctuation degree value, such as configuring the adaptive sampling period, correcting the filter strength and transmission power, etc., to optimize the performance of the monitoring equipment and improve the accuracy and reliability of liquid level monitoring.

[0024] The intelligent liquid level regulation module is used to perform intelligent liquid level regulation on each seawater sub-pump of the port seawater pumping station when anti-interference operation is deployed in real time on the monitoring equipment of the port seawater pumping station.

[0025] The intelligent liquid level adjustment is performed on each seawater sub-pump. The specific process is as follows: Figure 4 As shown, Figure 4 A flow chart is configured for level regulation load configuration. First, the difference between the real-time cumulative operating time of each seawater variable-speed pump and the preset optimal operating time is obtained to determine the remaining effective operating time. The seawater variable-speed pump with the largest remaining effective operating time is then prioritized for activation as a compensation pump. The standard deviation of the intake flow rate of each seawater fixed-speed pump during the fluctuation assessment period is then calculated, combined with the sea surface fluctuation value to determine the flow fluctuation degree. The corresponding strategy is then implemented based on the flow fluctuation interval to which the pump belongs. If the flow fluctuation interval falls within the second flow fluctuation interval, the load factor is adjusted or the pump is shut down and a compensation pump is activated based on the level deviation and duration of the fixed-speed pump. If the flow fluctuation interval falls within the third flow fluctuation interval, the liquid level change rate is reduced by adjusting the backup pump speed and the compensation pump load factor to maintain system stability.

[0026] The seawater sub-pumps of the port seawater pumping station include seawater constant-speed pumps and seawater variable-frequency pumps.

[0027] Specifically, anti-interference operation is deployed in real time for the monitoring equipment of the port seawater pumping station. The specific analysis process is as follows:

[0028] The sea surface stability change data of the port include the wave peak-to-valley ratio of the port sea surface, the wave energy flux of the port sea surface, the composite standard deviation of the wave acceleration of the port sea surface and the wave surface kurtosis of the port sea surface. The sea surface stability change data can be extracted from the monitoring records of the port sea surface.

[0029] Determine the degree of fluctuation of the sea surface at the port by normalizing the peak-to-valley ratio of the wave at the port, the wave energy flux at the port, the composite standard deviation of the wave acceleration at the port, and the wave kurtosis at the port, respectively, and then perform weighted aggregation on the normalized results to obtain the degree of fluctuation of the sea surface at the port;

[0030] The specific analysis method is as follows:

[0031]

[0032] Where, is the fluctuation value of the port sea surface, is the normalized value of the peak-to-valley ratio of breaking waves on the port sea surface, is the normalized value of the wave energy flux on the port sea surface, is the normalized value of the composite standard deviation of the wave acceleration on the harbor sea surface, is the normalized value of the wave surface kurtosis of the port sea surface, It is the influence element corresponding to the wave peak-to-valley ratio predefined in the seawater pump management library. The influence element corresponding to the wave energy flux predefined in the seawater pump management library is It is the influence element corresponding to the composite standard deviation of wave acceleration predefined in the seawater pump management library. It is the influencing element corresponding to the wave surface kurtosis predefined in the seawater pump management library.

[0033] It needs to be explained that the above-mentioned wave-breaking peak-to-valley ratio refers to the ratio of the crest height to the trough depth of the waves on the port sea surface; the wave energy flux refers to the wave energy passing through a unit crest width on the port sea surface per unit time; the composite standard deviation of wave acceleration refers to the standard deviation of the composite value of the water particle acceleration of the waves on the port sea surface 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.

[0034] Among them, the influencing elements corresponding to the wave peak-to-valley ratio, the influencing elements corresponding to the wave energy flux, the influencing elements corresponding to the composite standard deviation of wave acceleration, and the influencing elements corresponding to the wave surface kurtosis are all extracted from the seawater pump management library, and the mapping relationship can be a one-to-one correspondence or a many-to-one relationship. For example, the wave peak-to-valley ratio, the wave energy flux, the composite standard deviation of wave acceleration, and the wave surface kurtosis are respectively mapped with the influencing elements corresponding to the wave peak-to-valley ratio, the influencing elements corresponding to the wave energy flux, the influencing elements corresponding to the composite standard deviation of wave acceleration, and the influencing elements corresponding to the wave surface kurtosis preset in the seawater pump management library to form a mapping set. The real-time wave peak-to-valley ratio, wave energy flux, wave acceleration composite standard deviation, and wave surface kurtosis are brought into the mapping set to obtain the influencing elements corresponding to the wave peak-to-valley ratio, the influencing elements corresponding to the wave energy flux, the influencing elements corresponding to the composite standard deviation of wave acceleration, and the influencing elements corresponding to the wave surface kurtosis.

[0035] In this embodiment, multivariate analysis of wave peak-to-valley ratio, wave energy flux, composite standard deviation of wave acceleration and wave surface kurtosis is performed, specifically considering the correlation between these parameters. Generally speaking, the larger the wave peak-to-valley ratio, the higher and sharper the wave crest is relative to the trough, the more concentrated the wave energy is, and the wave height is relatively large. Under the condition of a certain wave period and propagation direction, the wave energy flux will also increase accordingly. Similarly, the more drastic the change in the acceleration of water particles during the wave breaking process, the larger the composite standard deviation of wave acceleration will be, thereby greatly increasing the degree of fluctuation of the port sea surface. The larger the wave energy flux, the more obvious the change in the sharpness or flatness of the wave waveform, 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 degree of fluctuation of the port sea surface will also be greater.

[0036] Compare the fluctuation degree value of the port sea surface with the predefined fluctuation degree value segments to determine the specific value segment of the fluctuation degree value of the port sea surface:

[0037] Each fluctuation degree numerical segment includes a first sea surface fluctuation numerical segment, a second sea surface fluctuation numerical segment and a third sea surface fluctuation numerical segment.

[0038] The first, second, and third numerical segments represent different degrees of severity of sea conditions, and are generally sorted from smallest to largest fluctuation value:

[0039] The first sea surface fluctuation value segment represents low-surface fluctuation conditions (e.g., calm or light sea conditions). This typically corresponds to smaller wave heights (e.g., 0-0.5 meters), suitable for safe operations (such as ships entering and leaving the port, loading and unloading cargo). Description: The sea surface is calm, with low risk, suitable for most port activities.

[0040] The second wave wave value segment represents moderate wave conditions (e.g., moderate or light sea conditions). This corresponds to moderate wave heights (e.g., 0.5-1.5 meters), requiring caution (e.g., restrictions on certain vessel types). Description: Visible waves on the sea surface may affect operational efficiency, but generally do not pose a serious threat.

[0041] The third sea surface fluctuation value segment represents high fluctuation conditions (such as large waves or rough seas). This corresponds to larger wave heights (e.g., over 1.5 meters), which may lead to safety risks (such as suspension of navigation or emergency evacuation). Situation description: The sea surface is very choppy, port operations may be suspended, and protective measures are required.

[0042] 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 device, the initial filtering strength value of the monitoring device and the initial transmission power of the monitoring device are maintained.

[0043] The monitoring equipment includes a liquid level sensor, a flow sensor, etc. The sampling period is used by the monitoring equipment to collect liquid level data from each seawater pump of the seawater pumping station.

[0044] 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 operation is deployed for the monitoring equipment.

[0045] Based on the comparison of the port's sea surface fluctuation levels with predefined fluctuation ranges, anti-interference operations are implemented in real time for the seawater pumping station's monitoring equipment. This ensures stable operation under varying sea surface fluctuation conditions, improving the accuracy and reliability of monitoring data. Different response measures are implemented for different fluctuation ranges. When sea surface fluctuations are minimal, the monitoring equipment's initial parameters are maintained, avoiding unnecessary resource waste. When sea surface fluctuations are significant, the monitoring equipment's parameters are adjusted promptly, enhancing its adaptability and flexibility in monitoring seawater pumps.

[0046] Furthermore, anti-interference operations are deployed on the monitoring equipment. The specific analysis process is as follows:

[0047] When the fluctuation degree of the port sea surface belongs to the second sea surface fluctuation value segment, the period preset adjustment factor is extracted and coupled with the initial sampling period of the monitoring equipment. Specifically, the initial sampling period of the monitoring equipment is multiplied by the period preset adjustment factor to obtain the corrected sampling period of the monitoring equipment, which is used to shorten the initial sampling period of the monitoring equipment.

[0048] The fluctuation degree value of the port sea surface is ratio-processed with the corresponding span of the second sea surface fluctuation numerical segment, wherein 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, so as 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 correction sampling period, the initial filtering intensity value of the monitoring device is increased to the corrected filtering intensity value of the monitoring device according to the filtering intensity compensation rate.

[0049] The second sea surface fluctuation value segment corresponds to the span, where the span refers to the length or range of the segment, i.e., the upper bound minus the lower bound. For example, if the second segment is defined as [L,U] (L is the lower bound, U is the upper bound), then the span = UL. Alternatively, if the second segment is defined as [L,U] (L is the lower bound, U is the upper bound), then the span = UL. The span is directly derived from the definition of the segment; regardless of whether the interval is open or closed, the span is defined as the upper bound minus the lower bound (UL). The calculation of the span depends only on the upper and lower bounds of the value, not on whether the endpoints are included. Therefore, opening or closing the interval does not affect the span value itself, only whether the fluctuation value belongs to the segment.

[0050] The above mapping obtains the filter intensity compensation value, specifically: obtaining a mapping set of the first proportion of the port sea surface fluctuation degree and the filter intensity compensation value from the seawater pump management library, and bringing the real-time first proportion of the port sea surface fluctuation degree into the mapping set to obtain the filter intensity compensation value.

[0051] The above mapping obtains the filter strength compensation rate, specifically: obtaining a mapping set of the initial filter strength value of the monitoring device and the filter strength compensation rate from the seawater pump management library, bringing the real-time initial filter strength value of the monitoring device into the mapping set, and obtaining the filter strength compensation rate.

[0052] The fluctuation degree value of the port sea surface is differenced with the minimum value of the second sea surface fluctuation value segment to obtain the fluctuation degree deviation of the port sea surface, and the transmission power enhancement ratio is matched to collect the transmission distance of the monitoring equipment, where the transmission distance can be obtained in the seawater pump management library, and the transmission power enhancement ratio correction factor is mapped to be coupled with the transmission power enhancement ratio. Specifically, the transmission power enhancement ratio correction factor is multiplied by the transmission power enhancement ratio to obtain the transmission power enhancement correction ratio. In the next correction sampling period, the transmission power enhancement correction ratio is coupled with the initial transmission power of the monitoring equipment. Specifically, the transmission power enhancement correction ratio is multiplied by the initial transmission power of the monitoring equipment to increase the initial transmission power of the monitoring equipment.

[0053] The above matching obtains the transmission power enhancement ratio, specifically: matching the fluctuation degree deviation of the port sea surface with the transmission power enhancement ratio corresponding to each predefined fluctuation degree deviation interval, determining the specific interval of the fluctuation degree deviation of the port sea surface, and obtaining the transmission power enhancement ratio corresponding to the interval.

[0054] The above mapping obtains the transmission power enhancement ratio correction factor, specifically: obtaining the mapping set of the transmission distance of the monitoring equipment and the transmission power enhancement ratio correction factor from the seawater pump management library, substituting the transmission distance of the real-time monitoring equipment into the mapping set, and obtaining the transmission power enhancement ratio correction factor.

[0055] It should be explained that the reason for adjusting the initial filter strength value or the initial transmission power in the next correction sampling period is that the sampling period involved is a relatively short time interval. Considering that the sea surface fluctuation level may not have reached the level that requires immediate and substantial adjustment of the filter strength value during the current correction sampling period, or the adjustment during this period may not be able to fully adapt to the fluctuation changes, postponing the adjustment operation to the next correction sampling period can avoid excessive adjustment of the filter strength value or the transmission power, and prevent system instability caused by excessive adjustment. At the same time, during the current correction period, the monitoring equipment can continue to monitor according to the initial filter strength value or the initial transmission power, making full use of existing monitoring resources and obtaining as much valid data as possible. Waiting for the next correction sampling period to adjust can ensure that the performance of the monitoring equipment is reasonably utilized without affecting the monitoring effect.

[0056] Specifically, anti-interference operations are deployed on monitoring equipment, including:

[0057] According to the third sea surface fluctuation value segment, the adaptive sampling period is mapped to obtain the adaptive sampling period of the monitoring device, and the next sampling period of the monitoring device is replaced by the adaptive sampling period to shorten the initial sampling period of the monitoring device.

[0058] The above mapping obtains the adaptive sampling period, specifically: obtaining a mapping set of the third sea surface fluctuation value segment and the adaptive sampling period from the seawater pump management library, bringing the real-time third sea surface fluctuation value segment into the mapping set, and obtaining the adaptive sampling period.

[0059] The initial filter strength value of the monitoring equipment is set as the reference filter strength value of the monitoring equipment, and the echo feature recognition technology is enabled at the same time to filter out the interference echo signal from the port sea surface.

[0060] The fluctuation degree value of the port sea surface is differenced with the minimum value of the third sea surface fluctuation value segment to obtain the fluctuation deviation degree value of the port sea surface, mapped to obtain the transmission power enhancement amount, the transmission distance of the monitoring equipment is collected, mapped to obtain the transmission power enhancement amount correction factor, and 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 transmission power correction enhancement amount. In the next adaptation sampling period, the initial transmission power of the monitoring equipment is increased to the transmission power correction enhancement amount.

[0061] In the next adaptation sampling cycle, the range of the fluctuation value of the port sea surface is continuously determined, and the anti-interference operation of the monitoring equipment is corrected.

[0062] The echo feature recognition technology described above involves the monitoring equipment receiving echo signals, which include surface reflections from the fixed-speed seawater pumps at the seawater pumping station, as well as interference echoes generated by sea waves. The collected echo signals are analyzed to extract characteristics such as pulse width and rising edge. A waveform pattern matching algorithm analyzes the echo signal characteristics to determine whether each echo signal more closely resembles the characteristics of a liquid level echo signal or a wave interference echo signal. Liquid level echo signals are characterized by a stable pulse width and a steep rising edge. Wave interference echo signals are characterized by randomly varying pulse widths and a gentle rising edge. Based on the comparison results, the wave interference echo signals are filtered out, retaining the valid liquid level echo signals. Signals identified as wave interference echoes are shielded or eliminated, thereby purifying the surface reflection signals and improving the accuracy and reliability of the monitoring equipment's liquid level monitoring of the seawater pumping station.

[0063] The above mapping obtains the transmission power enhancement amount, specifically: obtaining a mapping set of the port sea surface fluctuation deviation value and the transmission power enhancement amount from the seawater pump management library, and bringing the real-time port sea surface fluctuation deviation value into the mapping set to obtain the transmission power enhancement amount.

[0064] The above mapping obtains the transmission power enhancement correction factor, specifically: obtaining a mapping set of the transmission distance of the monitoring equipment and the transmission power enhancement correction factor from the seawater pump management library, bringing the real-time transmission distance of the monitoring equipment into the mapping set, and obtaining the transmission power enhancement correction factor.

[0065] When the sea level in the port fluctuates significantly, by comprehensively considering factors such as fluctuation deviation and transmission distance, the transmission power enhancement amount and correction factor are mapped and the initial transmission power of the monitoring equipment is increased accordingly. This ensures that the monitoring equipment can still effectively transmit and receive signals at long distances or in complex sea conditions, improving the performance and reliability of the monitoring equipment in harsh sea conditions and ensuring the normal operation of liquid level monitoring. At the same time, the adjustment and correction of various parameters are based on the real-time sea surface fluctuation value and the specific conditions of the monitoring equipment. Automatic matching and calculation are performed through the mapping set in the seawater pump management library, realizing intelligent adjustment of the monitoring equipment parameters, improving the system's adaptability and intelligence level to different sea conditions, and enabling it to better meet the actual operation needs of the port seawater pump station.

[0066] Furthermore, the anti-interference operation of the monitoring equipment is modified. The specific analysis process is as follows:

[0067] The fluctuation degree value of the port sea surface is extracted in real time, and the residence time of the port sea surface fluctuation degree value belonging to the third sea surface fluctuation value segment is counted and compared with the predefined residence time threshold. If the residence time is less than the residence time threshold, the adaptive sampling period of the monitoring equipment, the reference filter strength value of the monitoring equipment and the transmission power correction enhancement amount of the monitoring equipment are maintained.

[0068] If the stay duration is greater than or equal to the stay duration threshold, the adapted 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.

[0069] Enable multi-period sliding average to obtain the mean value of the liquid level jump of each seawater constant-speed pump, where the liquid level jump mean value can be extracted from the records of the monitoring equipment, and the influencing parameters corresponding to the predefined liquid level jump mean value are corrected. The fluctuation deviation value of the port sea surface and the influencing parameters corresponding to the predefined fluctuation deviation value are corrected. Based on the correction processing result, the sliding window reference width is obtained, and the filtering sliding window width of the monitoring equipment is configured as the sliding window reference width.

[0070] The above-mentioned correction processing results are specifically the average value of the liquid level jump of each seawater constant-speed pump, multiplied by the influencing parameter corresponding to the average value of the liquid level jump, to obtain the first sub-value of the operation stability assessment of the seawater pumping station, and the fluctuation deviation degree value of the port sea surface, multiplied by the influencing parameter corresponding to the fluctuation deviation degree value, to obtain the second sub-value of the operation stability assessment of the seawater pumping station. The first sub-value of the operation stability assessment of the seawater pumping station and the second sub-value of the operation stability assessment of the seawater pumping station are added together to obtain the operation stability assessment value of the seawater pumping station, which is recorded as the correction processing result.

[0071] The above mapping obtains the sliding window reference width, specifically: obtaining a mapping set of the operation stability evaluation value of the seawater pumping station and the sliding window reference width from the seawater pump management library, bringing the real-time operation stability evaluation value of the seawater pumping station into the mapping set, and obtaining the sliding window reference width.

[0072] By calculating the duration of the sea surface fluctuation value within the third sea surface fluctuation value segment and comparing it with a predefined duration threshold, the decision on whether to maintain or adjust the relevant parameters of the monitoring equipment is made. This can avoid frequent adjustments to the monitoring equipment parameters due to temporary abnormalities in sea surface fluctuations, thereby improving the stability of liquid level monitoring. When the sea surface fluctuation level persists at a high level, the adaptive sampling period and initial transmission power of the monitoring equipment are set to the defined sampling period and defined transmission power, ensuring that the monitoring equipment can continue to operate stably under extreme sea conditions and guaranteeing the continuity and reliability of liquid level monitoring data. By enabling a multi-period sliding average to obtain the mean value of the liquid level jump, and combining it with the fluctuation deviation value of the port sea surface to map the sliding window reference width, the filter sliding window width of the monitoring equipment is adjusted to effectively filter out liquid level signal jumps caused by sea surface fluctuations, enhance the anti-interference ability of the monitoring equipment in extreme surge conditions, enable liquid level monitoring to more accurately reflect actual liquid level changes, and improve the adaptability of the port seawater pumping station to different sea conditions.

[0073] Specifically, intelligent liquid level adjustment is performed, and the specific execution process is as follows:

[0074] The real-time accumulated running time of each seawater variable frequency pump is obtained, where the real-time accumulated running time is extracted from the running records of each seawater variable frequency pump. The preset optimal running time of each seawater variable frequency pump is subtracted from the real-time accumulated running time of each seawater variable frequency pump to obtain the remaining effective running time of each seawater variable frequency pump. In the intelligent liquid level adjustment strategy, the seawater variable frequency pump with the longest remaining effective running time is started first to perform load compensation, and the seawater variable frequency pump with the longest remaining effective running time is separately recorded as the seawater variable frequency compensation pump.

[0075] Prioritizing the start-up of the seawater variable frequency pump with the longest remaining effective operating time to perform load compensation can reasonably allocate the operating time of each pump, avoid excessive use of one or several pumps, balance the wear of the equipment, extend the service life of the equipment, and reduce maintenance costs.

[0076] The water intake flow of each seawater constant-speed pump at each fluctuation assessment time point within the fluctuation assessment period is obtained. The water intake flow can be monitored by a flow meter, and standard deviation processing is performed to obtain the flow standard deviation of each seawater constant-speed pump.

[0077] According to the fluctuation degree value of the port sea surface, the flow fluctuation influence factor is matched and coupled with the flow standard deviation of each seawater constant-speed pump. Specifically, the flow fluctuation influence factor is multiplied by the flow standard deviation of each seawater constant-speed pump to obtain the flow fluctuation degree value of each seawater constant-speed pump; the specific matching is: matching the fluctuation degree value of the port sea surface with the flow fluctuation influence factor corresponding to each predefined fluctuation degree value interval, determining the specific interval of the port sea surface fluctuation degree value, and obtaining the flow fluctuation influence factor corresponding to the interval.

[0078] According to the flow fluctuation degree value of each seawater constant speed pump, the flow fluctuation range to which the flow fluctuation degree value of each seawater constant speed pump belongs is determined, and a load distribution combined with liquid level regulation strategy is executed.

[0079] The flow fluctuation interval includes a first flow fluctuation interval, a second flow fluctuation interval and a third flow fluctuation interval.

[0080] The first flow fluctuation range represents minimal flow fluctuations. In this case, the flow rate at the seawater pumping station's intake is relatively stable, and the impact of sea level fluctuations on the intake is relatively small. Due to the low flow fluctuations, no additional load distribution or level control operations are required. This indicates that the current operating conditions are relatively stable, and the pumping station can operate effectively within its existing configuration.

[0081] The second flow fluctuation range indicates moderate flow fluctuation. In this case, the flow rate at the water intake fluctuates to a certain extent, likely due to changes in water flow caused by sea level fluctuations. Load compensation is performed based on the priority of the seawater variable frequency compensation pumps. In this case, the seawater variable frequency compensation pump with the longest remaining effective operating time is prioritized to take on the additional load, maintaining the stability and efficiency of the pumping station.

[0082] The third flow fluctuation range indicates greater flow fluctuations. In this case, the flow rate at the water intake fluctuates significantly, potentially significantly impacting the normal operation of the pumping station. Consider the operation of the seawater variable frequency compensation pump and backup pump to maintain normal operation of the pumping station.

[0083] The degree of sea surface fluctuation at the port directly affects the flow stability of the seawater pumping station's water intake. When the sea surface fluctuates significantly, the impact and surge of the waves will make the water flow conditions at the seawater pumping station's water intake complex and changeable, which in turn causes fluctuations in the water intake flow of each seawater fixed-speed pump. By matching different sea surface fluctuation value segments with corresponding flow fluctuation intervals, the degree of sea surface fluctuation can be closely linked to the actual operating conditions of the seawater pumping station. This correspondence allows the system to predict and accurately grasp the flow fluctuation problems that each seawater fixed-speed pump at the seawater pumping station may face in advance based on the sea surface fluctuation situation, thereby providing a basis for adopting targeted load distribution and liquid level regulation strategies to achieve precise control of the seawater pumping station.

[0084] If the flow fluctuation degree value of a certain seawater constant speed pump belongs to the first flow fluctuation range, there is no need to perform load distribution combined with liquid level regulation.

[0085] If the flow fluctuation degree value of a seawater constant speed pump belongs to the second flow fluctuation range or the flow fluctuation degree value of a seawater constant speed pump belongs to the third flow fluctuation range, the load distribution combined with liquid level regulation strategy is executed based on the seawater variable frequency compensation pump.

[0086] Furthermore, the load distribution combined with liquid level regulation strategy is implemented. The specific analysis process is as follows:

[0087] If the flow fluctuation degree value of a certain seawater constant-speed pump belongs to the second flow fluctuation range, the real-time liquid level value of the seawater constant-speed pump is obtained, and the difference processing is performed with the predefined reference liquid level value to obtain the liquid level value deviation of the seawater constant-speed pump, where the real-time liquid level value can be extracted from the monitoring record of the monitoring equipment.

[0088] 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 permissible deviation of the liquid level value, there is no need to perform load distribution combined liquid level adjustment; if the liquid level value deviation of the seawater constant speed pump is greater than or equal to zero and greater than the first permissible deviation of the liquid level value, then in the next sampling period, the real-time liquid level value of the seawater constant speed pump shall be adjusted down to the reference liquid level value of the seawater constant speed pump.

[0089] If the liquid level value deviation of the seawater constant speed pump is less than zero and greater than or equal to the second permissible deviation of the liquid level value, there is no need to perform load distribution combined liquid level regulation. If the liquid level value deviation of the seawater constant speed pump is less than zero and less than the second permissible deviation of the liquid level value, the liquid level regulation measures corresponding to the second permissible deviation of the liquid level value are executed, and the duration of the liquid level value deviation of the seawater constant speed pump being less than or equal to the second permissible deviation of the liquid level value is counted and recorded as the liquid level value deviation duration.

[0090] According to the liquid level deviation of the seawater constant speed pump, the adaptive load rate of the seawater constant speed pump is mapped.

[0091] By monitoring the duration of the liquid level deviation of the seawater constant-speed pump, abnormal liquid level conditions can be detected in a timely manner and the pump load rate can be adjusted to make the pump's operating status more in line with actual needs, improve system operating efficiency, and reduce energy waste.

[0092] The duration of the liquid level deviation is compared with the predefined duration of the liquid level deviation. If the duration of the liquid level deviation is less than or equal to the duration of the liquid level deviation, the real-time load rate of the seawater constant speed pump is adjusted to the adaptive load rate of the seawater constant speed pump.

[0093] The above mapping obtains the adaptive load rate of the seawater constant-speed pump. Specifically, a mapping set of the liquid level value deviation and the adaptive load rate of the seawater constant-speed pump is obtained from the seawater pump management library, and the real-time liquid level value deviation of the seawater constant-speed pump is brought into the mapping set to obtain the adaptive load rate of the seawater constant-speed pump.

[0094] When the liquid level deviation lasts for a short time, the problem can be solved by adjusting the load rate of the seawater constant-speed pump. When the deviation lasts for a long time, the faulty pump is shut down in time and the seawater variable-frequency compensation pump is started for load compensation. This can effectively deal with the liquid level deviation problem and ensure the normal operation of the seawater pumping station.

[0095] If the liquid level value deviation lasts longer than the defined duration of the liquid level value deviation, the seawater constant speed pump is shut down, and the seawater variable frequency compensation pump is started to perform load compensation. The seawater variable frequency compensation pump is configured based on the adaptive load rate of the seawater constant speed pump.

[0096] If the liquid level value deviation of the seawater constant speed pump is less than zero and less than the liquid level value limit deviation, the liquid level value second allowable deviation corresponding to the liquid level adjustment measure is corrected.

[0097] The aforementioned level limit deviation represents the minimum permissible deviation for the level deviation, which is less than the second permissible deviation. The level limit deviation, as the minimum permissible deviation for the level deviation, defines the lower limit for the level deviation. When the level deviation of the seawater constant-speed pump is less than zero and less than the level limit deviation, it indicates that the level deviation has exceeded the normal allowable range and is too low. This helps promptly identify low level deviations, preventing abnormalities such as air ingestion or water supply failure caused by low liquid levels. The introduction of the level limit deviation allows the seawater pumping station to effectively distribute the load among its pumps when the level deviation is too small. When the level deviation is less than the level limit deviation, the pumping station shuts down the seawater constant-speed pump with the low level deviation and activates the seawater variable-frequency compensation pump to compensate for the load. This load distribution method optimizes the coordinated operation of multiple pumps, prevents overloading or inefficient operation of individual pumps, and improves the overall performance and efficiency of the pumping station regulation.

[0098] When the flow fluctuation of a seawater constant-speed pump exceeds the limit and persists for an extended period, the faulty pump is shut down and the seawater variable-frequency compensation pump is activated. This ensures a continuous and stable supply of seawater to the seawater pumping station, preventing abnormal operation of the entire seawater pumping station due to a single pump failure and improving system reliability. By introducing parameters such as the duration of liquid level deviation, the operating status of the seawater constant-speed pump can be more carefully monitored and judged, enabling the system to more accurately assess the pump's operating status and implement more appropriate control measures, enhancing the system's ability to respond to complex operating conditions.

[0099] Specifically, the liquid level adjustment measures corresponding to the second permissible deviation of the liquid level value are corrected. The specific analysis process is as follows:

[0100] If the liquid level value deviation of the seawater constant speed pump is less than zero and greater than or equal to the liquid level value limit deviation, the seawater constant speed pump is controlled to maintain the adaptive load rate.

[0101] If the liquid level deviation of the seawater constant speed pump is less than zero and less than the liquid level limit deviation, the seawater constant speed pump will be warned and shut down. At the same time, the adaptive load rate of the seawater constant speed pump will be compared with the predefined maximum allowable load rate of the seawater variable frequency compensation pump. If the adaptive load rate of the seawater constant speed pump is less than or equal to the maximum allowable load rate of the seawater variable frequency compensation pump, the seawater variable frequency compensation pump will be controlled to maintain the adaptive load rate.

[0102] If the adaptive load rate of the seawater constant-speed pump is greater than the maximum permissible load rate of the seawater variable-frequency compensation pump, the adaptive load rate of the seawater constant-speed pump is subtracted from the maximum permissible load rate of the seawater variable-frequency compensation pump to obtain and record it as the adaptive load rate overflow. The seawater variable-frequency compensation pump is configured based on the adaptive load rate, and the second seawater variable-frequency compensation pump is configured based on the adaptive load rate overflow. The second seawater variable-frequency compensation pump is represented by the seawater variable-frequency compensation pump with the second longest remaining effective operating time being separately recorded as the second seawater variable-frequency compensation pump.

[0103] Considering the coordinated operation relationship between the seawater fixed-speed pump, the seawater variable-frequency compensation pump, and the standby pump, by comparing the adaptive load rate with the maximum allowable load rate of the seawater variable-frequency compensation pump, the load of each pump is rationally allocated, achieving efficient coordinated operation of multiple pumps and improving overall system performance. The introduction of parameters such as the adaptive load rate overflow further refines the load distribution process, ensuring a more reasonable load allocation for each pump, avoiding equipment overload or inefficient operation due to uneven load distribution, and improving system stability and operational efficiency.

[0104] Furthermore, the load distribution combined with liquid level regulation strategy is implemented, further comprising:

[0105] If the flow fluctuation degree value of a certain seawater constant-speed pump falls within the third flow fluctuation range, the liquid level change rate of the seawater constant-speed pump is extracted in real time, where the liquid level change rate can be extracted from the monitoring record of the monitoring equipment, and the difference processing is performed 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. The adaptive speed of the standby pump is mapped and used to configure the standby pump, start the standby pump for pre-judgment acceleration, and reduce the liquid level change rate of the seawater constant-speed pump.

[0106] The above mapping obtains the adaptive speed of the standby pump, specifically: obtaining a mapping set of the first safety deviation of the liquid level change of the seawater constant-speed pump and the adaptive speed of the standby pump from the seawater pump management library, and bringing the real-time first safety deviation of the liquid level change of the seawater constant-speed pump into the mapping set to obtain the adaptive speed of the standby pump.

[0107] When the flow fluctuation level of a seawater fixed-speed pump falls within the third flow fluctuation range, the backup pump starts up immediately to preemptively accelerate and help reduce the rate of change of the seawater fixed-speed pump's liquid level, preventing excessive level fluctuations from causing system instability. In other words, when the seawater fixed-speed pump is insufficient to meet load demands during the current cycle, the backup pump acts as an additional compensatory force to maintain a stable liquid level in the seawater pumping station.

[0108] The actual speed of the standby pump is obtained, where the actual speed can be extracted from the execution record of the standby pump. The estimated liquid level change rate of the seawater constant-speed pump is mapped and the difference is processed with the liquid level change rate threshold to obtain the second safety deviation of the liquid level change of the seawater constant-speed pump. The predicted load rate of the seawater variable frequency compensation pump is mapped and connected in the next sampling period. The seawater variable frequency compensation pump is configured based on the predicted load rate.

[0109] The above mapping obtains the estimated liquid level change rate of the seawater constant-speed pump. The mapping set of the actual speed of the standby pump and the estimated liquid level change rate is obtained from the seawater pump management library. The real-time actual speed of the standby pump is substituted into the mapping set to obtain the estimated liquid level change rate of the seawater constant-speed pump.

[0110] The above mapping obtains the predicted load rate of the seawater variable frequency compensation pump. Specifically, a mapping set of the second safety deviation of the liquid level change of the seawater constant speed pump and the predicted load rate is obtained from the seawater pump management library, and the real-time second safety deviation of the liquid level change of the seawater constant speed pump is brought into the mapping set to obtain the predicted load rate of the seawater variable frequency compensation pump.

[0111] The fall-back maintenance time when the liquid level change rate of the seawater constant-speed pump is less than the liquid level change rate threshold is counted in real time, where the fall-back maintenance time is expressed as the duration of time when the liquid level change rate of the seawater constant-speed pump is less than the liquid level change rate threshold. If the fall-back maintenance time is greater than or equal to the fall-back maintenance adaptation time, the standby pump is slowed down and shut down to maintain the predicted load rate configuration of the seawater variable frequency compensation pump. If the fall-back maintenance time is less than the fall-back maintenance adaptation time, the predicted adaptive load rate of the seawater variable frequency compensation pump is mapped according to the difference between the fall-back maintenance time and the fall-back maintenance adaptation time. In the next sampling period, the seawater variable frequency compensation pump is reconfigured with the predicted adaptive load rate.

[0112] The above-mentioned mapping of the predicted adaptive load rate of the seawater variable frequency compensation pump is specifically as follows: the difference between the fallback maintenance time and the fallback maintenance adaptation time is recorded as the fallback maintenance time deviation, and the mapping set of the fallback maintenance time deviation and the predicted adaptive load rate is obtained from the seawater pump management library, and the real-time fallback maintenance time deviation is brought into the mapping set to obtain the predicted adaptive load rate of the seawater variable frequency compensation pump.

[0113] By extracting the liquid level change rate of the seawater constant-speed pump in real time and comparing it with the threshold, the risk of abnormal liquid level changes can be detected in advance, and the standby pump can be started in time for pre-judgment acceleration, reducing the liquid level change rate of the seawater constant-speed pump and ensuring stable system operation. By mapping, parameters such as the adaptive speed of the standby pump and the predicted 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 liquid level changes and improve its responsiveness and adaptability to complex working conditions. The duration of the liquid level change rate of the seawater constant-speed pump is calculated, and based on the comparison results of this duration with the adaptation duration, the operating status of the standby pump and the seawater variable-frequency compensation pump are flexibly adjusted to further improve the system's self-regulation mechanism, so that the system can maintain a good operating state under different working conditions.

[0114] Reference Figure 2 As shown, the second aspect of the present invention provides an intelligent liquid level control method for a port seawater pumping station, comprising: collecting port sea surface stability change data in real time, and determining the fluctuation degree value of the port sea surface.

[0115] According to the fluctuation degree of the sea surface in the port, the specific fluctuation degree value range is determined, and anti-interference operations are deployed in real time for the monitoring equipment of the port seawater pumping station.

[0116] When anti-interference operation is deployed in real time on the monitoring equipment of the port seawater pumping station, intelligent liquid level adjustment is performed on each seawater sub-pump of the port seawater pumping station.

[0117] The seawater sub-pumps of the port seawater pumping station include seawater constant-speed pumps and seawater variable-frequency pumps.

[0118] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. 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 fall within the scope of protection of the present invention.

Claims

1. Intelligent liquid level control system for port seawater pumping station, characterized by: include: The sea surface fluctuation degree determination module is used to collect the port's sea surface stability change data in real time and determine the port's sea surface fluctuation degree value; The anti-interference operation deployment module is used to determine the specific fluctuation level value range according to the fluctuation level of the port sea surface, and to deploy anti-interference operations for the monitoring equipment of the port seawater pumping station in real time; Intelligent liquid level regulation module, used to perform intelligent liquid level regulation on each seawater sub-pump of the port seawater pumping station when anti-interference operation is deployed in real time on the monitoring equipment of the port seawater pumping station; The seawater sub-pumps of the port seawater pumping station include seawater fixed-speed pumps and seawater variable-frequency pumps; The real-time anti-interference operation of the monitoring equipment of the port seawater pumping station is analyzed in detail 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 composite standard deviation of the wave acceleration of the port sea surface, and the wave surface kurtosis of the port sea surface; The determination of the degree of fluctuation of the sea surface at the port is specifically carried out by normalizing the peak-to-valley ratio of the wave on the sea surface at the port, the wave energy flux on the sea surface at the port, the composite standard deviation of the wave acceleration on the sea surface at the port, and the wave surface kurtosis on the sea surface at the port, respectively, to obtain normalized results, and then performing weighted aggregation in sequence to obtain the degree of fluctuation of the sea surface at the port; Compare the fluctuation degree value of the port sea surface with the predefined fluctuation degree value segments to determine the specific value segment of the fluctuation degree value of the port sea surface: The fluctuation degree value segments include 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 device, the initial filtering intensity value of the monitoring device, and the initial transmission power of the monitoring device 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 operation is deployed for the monitoring equipment.

2. The intelligent liquid level control system for a port seawater pumping station according to claim 1, characterized in that: The specific analysis process of deploying anti-interference operation on monitoring equipment is as follows: When the fluctuation degree of the port sea surface belongs to the second sea surface fluctuation value segment, the preset period adjustment factor is extracted and coupled 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 a first ratio of the fluctuation degree of the port sea surface, map it to obtain a filter strength compensation value, couple the initial filter strength value of the monitoring device with the filter strength compensation value to obtain a corrected filter strength value of the monitoring device, and at the same time, map it to obtain a filter strength compensation rate based on the initial filter strength value of the monitoring device. In the next correction sampling period, increase the initial filter strength value of the monitoring device to the corrected filter strength value of the monitoring device according to the filter strength compensation rate; The fluctuation degree value of the port sea surface is differenced with the minimum value of the second sea surface fluctuation value segment to obtain the fluctuation degree deviation of the port sea surface, which is matched to obtain the transmission power enhancement ratio, and the transmission distance of the monitoring equipment is collected. The transmission power enhancement ratio correction factor is mapped and coupled with the transmission power enhancement ratio to obtain the transmission power enhancement correction ratio. In the next correction sampling period, the transmission power enhancement correction ratio is coupled with the initial transmission power of the monitoring equipment to increase the initial transmission power of the monitoring equipment.

3. The intelligent liquid level control system for a port seawater pumping station according to claim 2, characterized in that: The anti-interference operation of the monitoring equipment is also arranged: According to the third sea surface fluctuation value segment, an adaptive sampling period is obtained by mapping, and the adaptive sampling period of the monitoring device is obtained, and the next sampling period of the monitoring device is replaced by the adaptive sampling period to shorten the initial sampling period of the monitoring device; Set the initial filter strength value of the monitoring equipment as the reference filter strength value of the monitoring equipment, and enable the echo feature recognition technology to filter out the interference echo signal from 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 value 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 the transmission power enhancement amount correction factor is mapped to obtain the transmission power enhancement amount. The correction factor is coupled with the transmission power enhancement amount to obtain the transmission power correction enhancement amount. In the next adaptation sampling period, the initial transmission power of the monitoring device is increased to the transmission power correction enhancement amount. In the next adaptation sampling cycle, the range of the fluctuation value of the port sea surface is continuously determined, and the anti-interference operation of the monitoring equipment is corrected.

4. The intelligent liquid level control system for a port seawater pumping station according to claim 3 is characterized in that: The specific analysis process of correcting the anti-interference operation of the monitoring equipment is as follows: Extract the fluctuation degree value of the port sea surface in real time, calculate the residence time of the port sea surface fluctuation degree value in the third sea surface fluctuation value segment, and compare it with the predefined residence time threshold. If the residence time is less than the residence time threshold, maintain the adaptive sampling period of the monitoring device, the reference filter strength value of the monitoring device, and the transmission power correction enhancement amount of the monitoring device; If the dwell time is greater than or equal to the dwell time threshold, the adapted sampling period of the monitoring device is set to the defined sampling period of the monitoring device, and the initial transmit power of the monitoring device is set to the defined transmit power of the monitoring device; Enable multi-period sliding average to obtain the mean value of the liquid level jump of each seawater constant-speed pump, correct the influencing parameters corresponding to the predefined liquid level jump mean value, and correct the fluctuation deviation value of the port sea surface and the influencing parameters corresponding to the deviation value. Based on the correction processing result mapping, the sliding window reference width is obtained, and the filtering sliding window width of the monitoring equipment is configured as the sliding window reference width.

5. The intelligent liquid level control system for a port seawater pumping station according to claim 1 is characterized in that: The specific execution process of the intelligent liquid level adjustment is as follows: The real-time accumulated running time of each seawater variable frequency pump is obtained, and the preset optimal running time of each seawater variable frequency pump is subtracted from the real-time accumulated running time of each seawater variable frequency pump to obtain the remaining effective running time of each seawater variable frequency pump. In the intelligent liquid level adjustment strategy, the seawater variable frequency pump with the longest remaining effective running time is preferentially started to perform load compensation, and the seawater variable frequency pump with the longest remaining effective running time is separately recorded as the seawater variable frequency compensation pump; Obtain the water intake flow of each seawater constant-speed pump at each fluctuation assessment time point within the fluctuation assessment period, perform standard deviation processing, and obtain the flow standard deviation of each seawater constant-speed pump; According to the fluctuation degree of the port sea surface, the flow fluctuation influencing factor is matched and coupled with the flow standard deviation of each seawater constant speed pump to obtain the flow fluctuation degree value of each seawater constant speed pump; According to the flow fluctuation degree value of each seawater constant speed pump, the flow fluctuation range to which the flow fluctuation degree value of each seawater constant speed pump belongs is determined, and a load distribution combined with liquid level regulation strategy is executed; The flow fluctuation interval includes a first flow fluctuation interval, a second flow fluctuation interval and a third flow fluctuation interval; If the flow fluctuation value of a seawater constant speed pump falls within the first flow fluctuation range, there is no need to perform load distribution combined with liquid level regulation; If the flow fluctuation degree value of a seawater constant speed pump belongs to the second flow fluctuation range or the flow fluctuation degree value of a seawater constant speed pump belongs to the third flow fluctuation range, the load distribution combined with liquid level regulation strategy is executed based on the seawater variable frequency compensation pump.

6. The intelligent liquid level control system for a port seawater pumping station according to claim 5, characterized in that: The load distribution combined with liquid level regulation strategy is analyzed in detail as follows: If the flow fluctuation degree value of a certain seawater constant-speed pump falls within the second flow fluctuation range, the real-time liquid level value of the seawater constant-speed pump is obtained, and the difference between the real-time liquid level value and the predefined reference liquid level value is processed to obtain the liquid level 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 is less than or equal to the predefined first permissible 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 constant speed pump is greater than or equal to zero and is greater than the first permissible deviation of the liquid level value, then in the next sampling period, the real-time liquid level value of the seawater constant speed pump is adjusted down to the reference liquid level value of the seawater constant speed pump; If the liquid level deviation of the seawater constant-speed pump is less than zero and greater than or equal to the second permissible deviation of the liquid level value, there is no need to perform load distribution combined liquid level regulation. If the liquid level deviation of the seawater constant-speed pump is less than zero and less than the second permissible deviation of the liquid level value, the liquid level regulation measure corresponding to the second permissible deviation of the liquid level value is performed. The duration of time during which the liquid level deviation of the seawater constant-speed pump is less than or equal to the second permissible deviation of the liquid level value is counted and recorded as the liquid level deviation duration. According to the liquid level deviation of the seawater constant speed pump, the adaptive load rate of the seawater constant speed pump is mapped; The duration of the liquid level deviation is compared with the predefined duration of the liquid level deviation. If the duration of the liquid level deviation is less than or equal to the duration of the liquid level deviation, the real-time load rate of the seawater constant-speed pump is adjusted to the adaptive load rate of the seawater constant-speed pump. If the duration of the liquid level deviation is longer than the defined duration, the seawater constant speed pump is shut down, and the seawater variable frequency compensation pump is started to perform load compensation. The seawater variable frequency compensation pump is configured based on the adaptive load rate of the seawater constant speed pump. If the liquid level deviation of the seawater constant speed pump is less than zero and less than the liquid level limit deviation, the liquid level adjustment measure corresponding to the second permissible deviation of the liquid level value is corrected and executed.

7. The intelligent liquid level control system for a port seawater pumping station according to claim 6, characterized in that: The correction execution liquid level value second allowable deviation corresponds to the liquid level adjustment measure, and the specific analysis process is as follows: If the liquid level deviation of the seawater constant speed pump is less than zero and greater than or equal to the liquid level limit deviation, the seawater constant speed pump is controlled to maintain the adaptive load rate; If the liquid level deviation of the seawater constant-speed pump is less than zero and less than the liquid level limit deviation, the seawater constant-speed pump will be warned and shut down. At the same time, the adaptive load rate of the seawater constant-speed pump will be compared with the predefined maximum allowable load rate of the seawater variable-frequency compensation pump. If the adaptive load rate of the seawater constant-speed pump is less than or equal to the maximum allowable load rate of the seawater variable-frequency compensation pump, the seawater variable-frequency compensation pump will be controlled to maintain the adaptive load rate. If the adaptive load rate of the seawater constant speed pump is greater than the maximum allowable load rate of the seawater variable frequency compensation pump, the adaptive load rate of the seawater constant speed pump and the maximum allowable load rate of the seawater variable frequency compensation pump are subtracted to obtain and record it as the adaptive load rate overflow. The seawater variable frequency compensation pump is configured based on the adaptive load rate, and the seawater variable frequency second compensation pump is configured based on the adaptive load rate overflow.

8. The intelligent liquid level control system for a port seawater pumping station according to claim 6, characterized in that: The execution of the load distribution combined with liquid level regulation strategy further includes: If the flow fluctuation degree value of a certain seawater constant-speed pump falls within the third flow fluctuation interval, the liquid level change rate of the seawater constant-speed pump is extracted in real time and the difference is processed 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. The adaptive speed of the standby pump is mapped and used to configure the standby pump, start the standby pump for pre-judgment acceleration, and reduce the liquid level change rate of the seawater constant-speed pump; The actual speed of the standby pump is obtained, mapped to the estimated liquid level change rate of the seawater constant-speed pump. This value is then subtracted from the liquid level change rate threshold to obtain the second safety deviation of the liquid level change of the seawater constant-speed pump. This is then mapped to the predicted load rate of the seawater variable-frequency compensation pump. The seawater variable-frequency compensation pump is connected in the next sampling period and configured based on the predicted load rate. The real-time statistics are used to show the fallback maintenance time when the liquid level change rate of the seawater constant-speed pump is less than the liquid level change rate threshold. If the fallback maintenance time is greater than or equal to the fallback maintenance adaptation time, the standby pump will be slowed down and shut down to maintain the predicted load rate configuration of the seawater variable frequency compensation pump. If the fallback maintenance time is less than the fallback maintenance adaptation time, the predicted adaptive load rate of the seawater variable frequency compensation pump will be mapped according to the difference between the fallback maintenance time and the fallback maintenance adaptation time. In the next sampling period, the seawater variable frequency compensation pump will be reconfigured with the predicted adaptive load rate.

9. A control method for an intelligent liquid level regulating system for a port seawater pumping station according to any one of claims 1 to 8, characterized in that: include: Collect the port's sea surface stability change data in real time to determine the degree of fluctuation of the port's sea surface; According to the fluctuation degree of the port sea surface, the specific fluctuation degree value range is determined, and the monitoring equipment of the port seawater pumping station is equipped with real-time anti-interference operation; When anti-interference operation is deployed in real time on the monitoring equipment of the port seawater pumping station, intelligent liquid level regulation is performed on each seawater sub-pump of the port seawater pumping station; The seawater sub-pumps of the port seawater pumping station include seawater constant-speed pumps and seawater variable-frequency pumps.

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