Overflow control method, device, electronic device and storage medium

Abstract

The present invention provides an overflow control method, device, electronic device and storage medium. The method includes: monitoring whether the ship starts the overflow operation; after monitoring that the ship starts the overflow operation, determining the total amount of overflow sediment of the ship; inputting the total amount of overflow sediment into a trained suspended sediment diffusion model to obtain the deposition distribution data output by the suspended sediment diffusion model; wherein, the suspended sediment diffusion model simulates the diffusion process of the sediment according to the total amount of overflow sediment and determines the deposition distribution data; determining the overflow end time according to the deposition distribution data output by the suspended sediment diffusion model, and giving an overflow end prompt when the overflow end time is reached to remind the ship to end the overflow operation. The present invention can timely remind the trailing suction hopper dredger to end the overflow operation and avoid affecting the water depth of the surrounding navigable waters adjacent to the construction area.

Description

Technical Field

[0001] The present invention relates to the technical field of overflow sediment data processing, and in particular to an overflow control method, device, electronic device and storage medium. Background Art

[0002] Coastal waterways generally use trailing suction hopper dredgers for construction operations such as waterway excavation and maintenance. Among them, the construction process mostly adopts the method of "dredging - overflow - dumping / blowing fill". During construction, during the overflow process, sediment is sucked from the bottom of the waterway into the cabin and then discharged into the sea surface through the overflow bucket of the cabin. The high-concentration sediment-laden water flowing out diffuses with the seawater flow to the surrounding navigable waters adjacent to the construction area, such as port basins, waterways, docks, etc. Prolonged overflow will have an adverse impact on the water depth of the above-mentioned surrounding navigable waters, resulting in an increase in the maintenance cost of the above-mentioned surrounding navigable waters. Therefore, it is necessary to control the overflow time to timely remind the trailing suction hopper dredger to end the overflow operation and reduce the adverse impact brought by too long overflow time to the surrounding navigable waters.

[0003] However, in the related art, most of the staff determine the overflow time according to their own experience to control the ship's overflow operation, which easily leads to too long overflow time, affecting the water depth of the surrounding navigable waters adjacent to the construction area, and further increasing the maintenance cost of the surrounding navigable waters. Summary of the Invention

[0004] Embodiments of the present invention provide an overflow control method, device, electronic device and storage medium to timely remind the trailing suction hopper dredger to end the overflow operation and avoid affecting the surrounding navigable waters adjacent to the construction area.

[0005] In a first aspect, an embodiment of the present invention provides an overflow control method, including:

[0006] Monitoring whether the ship starts the overflow operation;

[0007] After monitoring that the ship starts the overflow operation, determining the total amount of overflow sediment of the ship;

[0008] Inputting the total amount of overflow sediment into a trained suspended sediment diffusion model to obtain the deposition distribution data output by the suspended sediment diffusion model; wherein, the suspended sediment diffusion model simulates the diffusion process of sediment according to the total amount of overflow sediment and determines the deposition distribution data;

[0009] Determining the overflow end moment according to the deposition distribution data output by the suspended sediment diffusion model, and performing an overflow end prompt when reaching the overflow end moment to remind the ship to end the overflow operation.

[0010] In a possible implementation manner, the suspended sediment diffusion model includes: an atmospheric model, a wave model, a tidal current model and a sediment model;

[0011] The atmospheric model calculates the atmospheric dynamic field parameters at the current moment according to the position information at the current moment, and inputs the atmospheric dynamic field parameters into the wave model and the tidal current model respectively;

[0012] The wave model calculates the wave field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the tidal current field data at the previous moment, and inputs the wave field data at the current moment into the tidal current model and the sediment model respectively;

[0013] The tidal current model calculates the tidal current field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the wave field data at the previous moment, and inputs the tidal current field data at the current moment into the wave model and the sediment model respectively;

[0014] The sediment model simulates the deposition distribution process of sediment according to the total amount of overflow sediment, wave field data and tidal current field data at the current moment, and obtains the deposition distribution data.

[0015] In a possible implementation manner, the deposition distribution data includes: the sediment deposition thickness at different positions within a preset navigable water area;

[0016] Determining the overflow end moment according to the deposition distribution data output by the suspended sediment diffusion model includes:

[0017] Comparing the sediment deposition thicknesses at different positions within the preset navigable water area with the warning thickness respectively;

[0018] Determining the moment when the sediment deposition thickness at any position within the preset navigable water area reaches the warning thickness as the overflow end moment;

[0019] Or

[0020] Calculating the total amount of sediment deposition within the preset navigable water area according to the sediment deposition thicknesses at different positions within the preset navigable water area and the areas at the corresponding positions;

[0021] Determining the moment when the total amount of sediment deposition within the preset navigable water area reaches the warning total amount as the overflow end moment.

[0022] In a possible implementation manner, determining the total amount of overflow sediment of the ship includes:

[0023] Obtaining the overflow flow rate of the ship and the surface sediment concentration in the ship's mud tank respectively;

[0024] Determining the total amount of overflow sediment of the ship according to the product of the overflow flow rate and the surface sediment concentration.

[0025] In one possible implementation, the method further includes:

[0026] Obtaining the total amount of overflow sediment and the actual deposition distribution data during different overflow periods;

[0027] Inputting the total amount of overflow sediment into the suspended sediment diffusion model to obtain the predicted deposition distribution data output by the suspended sediment diffusion model;

[0028] According to the difference between the predicted deposition distribution data and the corresponding actual deposition distribution data, adjusting the model parameters in the suspended sediment diffusion model, and based on the adjusted suspended sediment diffusion model, re-executing the step of inputting the total amount of overflow sediment into the suspended sediment diffusion model until the difference between the predicted deposition distribution data and its corresponding actual deposition distribution data is within a preset difference range, to obtain a trained suspended sediment diffusion model.

[0029] In one possible implementation, the model parameters in the suspended sediment diffusion model include: deposition rate;

[0030] According to the difference between the predicted deposition distribution data and the corresponding actual deposition distribution data, adjusting the model parameters in the suspended sediment diffusion model includes:

[0031] When the actual deposition distribution data is greater than the predicted deposition distribution data, increasing the deposition rate in the suspended sediment diffusion model;

[0032] When the actual deposition distribution data is less than the predicted deposition distribution data, decreasing the deposition rate in the suspended sediment diffusion model.

[0033] In one possible implementation, inputting the total amount of overflow sediment into the trained suspended sediment diffusion model to obtain the deposition distribution data output by the suspended sediment diffusion model includes:

[0034] Obtaining the overflow period and the ship overflow area, and inputting the overflow period and the ship overflow area into the atmospheric model;

[0035] Taking the total amount of overflow sediment as a point source strength and inputting it into the sediment model to obtain the deposition distribution data corresponding to the total amount of overflow sediment.

[0036] In a second aspect, an embodiment of the present invention provides an overflow control device, including:

[0037] A monitoring module, configured to monitor whether the ship starts the overflow operation;

[0038] A calculation module, configured to:

[0039] When it is monitored that the ship starts the overflow operation, determining the total amount of overflow sediment of the ship;

[0040] Input the total amount of overflow sediment into the trained suspended sediment diffusion model to obtain the deposition distribution data output by the suspended sediment diffusion model. Among them, the suspended sediment diffusion model simulates the diffusion process of sediment according to the total amount of overflow sediment and determines the deposition distribution data.

[0041] A control module is used to determine the end time of overflow according to the deposition distribution data output by the suspended sediment diffusion model, and give an overflow end prompt when the overflow end time is reached to remind the ship to end the overflow operation.

[0042] In a third aspect, an embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the method described in the first aspect above or any possible implementation manner of the first aspect are implemented.

[0043] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the steps of the method described in the first aspect above or any possible implementation manner of the first aspect are implemented.

[0044] An embodiment of the present invention provides an overflow control method, device, electronic device and storage medium. After detecting that a ship starts an overflow operation, the total amount of overflow sediment of the ship is determined. Then, the total amount of overflow sediment is input into the suspended sediment diffusion model to simulate the diffusion process of the overflow sediment and determine the deposition distribution data. Subsequently, the end time of overflow is determined according to the deposition distribution data. Among them, the deposition distribution data can represent the diffusion distribution of the overflow sediment. According to the diffusion distribution of the overflow sediment, the ship can be timely reminded to end the overflow operation to avoid the adverse impact of the deposition of overflow sediment after long-term overflow on the surrounding navigable waters adjacent to the construction area. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0046] Figure 1 is a flowchart of the implementation of the overflow control method provided by the embodiment of the present invention;

[0047] Figure 2 is a schematic structural diagram of the suspended sediment diffusion model provided by the embodiment of the present invention;

[0048] Figure 3 It is a schematic structural diagram of an overflow control device provided by an embodiment of the present invention;

[0049] Figure 4 It is a schematic diagram of an electronic device provided by an embodiment of the present invention. Detailed implementation manners

[0050] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. However, those skilled in the art should clearly understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present invention.

[0051] To ensure the navigation safety of coastal waterways, construction operations such as dredging and maintenance of the waterways are required to keep the water depth of the waterways within a reasonable range. Usually, a trailing suction hopper dredger can be used to carry out dredging and maintenance of the waterways, and the construction process mostly adopts the method of "dredging - overflow - dumping / blowing fill". During the construction period, during the dredging operation, sediment inside the waterway is sucked into the mud tank inside the ship from the bottom of the ship. When the mixture of sediment and water inside the mud tank reaches the highest liquid level of the mud tank, while the ship is performing the dredging operation, it starts to perform the overflow operation. During the overflow operation, sediment inside the waterway continues to be sucked into the mud tank inside the ship from the bottom of the ship. At the same time, the high-concentration sediment-containing water on the upper surface of the mud tank is discharged into the sea surface through the ship's overflow bucket, thereby discharging the water inside the mud tank and retaining the sediment inside the mud tank. After the overflow operation is completed, the ship sails away from the current construction area and goes to the dumping area to dump the sediment inside the mud tank, thereby realizing the dredging and maintenance work of the waterway to keep the water depth of the waterway within a reasonable range.

[0052] During the overflow operation, the high-concentration sediment-containing water discharged during the overflow operation will flow and diffuse with the sea water to the surrounding navigable waters adjacent to the current construction area, such as the harbor basin, waterway, and wharf, etc. Long-term overflow will have an adverse impact on the water depth of the above-mentioned surrounding navigable waters, resulting in an increase in the maintenance cost of the surrounding navigable waters. Therefore, it is necessary to control the overflow time to timely remind the trailing suction hopper dredger to end the overflow operation and reduce the adverse impact brought by too long overflow time to the surrounding navigable waters.

[0053] However, in the related art, most of the staff determine the overflow time based on their own experience to control the overflow operation of the ship, which easily leads to the problem of too long overflow time, affecting the surrounding navigable waters, and further resulting in an increase in the maintenance cost of the surrounding navigable waters.

[0054] To precisely control the overflow time and avoid the problem of excessive overflow time affecting the water depth of the surrounding navigable waters, in the implementation of this application, after detecting that a ship starts the overflow operation, the total amount of overflow sediment of the ship is determined. By inputting the total amount of overflow sediment into a suspended sediment diffusion model, the diffusion process of the overflow sediment is simulated to determine the deposition distribution data, and the end time of the overflow is determined based on the deposition distribution data. Among them, the deposition distribution data can characterize the diffusion distribution of the overflow sediment. According to the diffusion distribution of the overflow sediment, the end time of the overflow can be determined, so as to timely remind the ship to end the overflow operation based on the end time of the overflow and avoid the adverse impact of long-term overflow on the surrounding navigable waters.

[0055] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will be described through specific embodiments in conjunction with the accompanying drawings.

[0056] Figure 1 The following is a flowchart for implementing the overflow control method provided by the embodiments of the present invention, which is described in detail as follows:

[0057] Step 101: Monitor whether the ship starts the overflow operation.

[0058] During the dredging construction of the ship, when the mixture of sediment and water in the ship's mud tank reaches the highest liquid level, while maintaining the dredging operation, the ship starts to perform the overflow operation, and the high-concentration sediment-containing water on the upper surface of the mud tank is discharged into the sea surface through the ship's overflow bucket.

[0059] In the embodiments of the present invention, it is possible to determine whether the ship starts the overflow operation by monitoring the state of the ship's overflow bucket in real time. Specifically, an image of the ship's overflow bucket can be collected and input into a pre-trained neural network model to identify whether the ship's overflow bucket is in an overflow state. Here, the neural network model is trained based on the image of the ship's overflow bucket and its corresponding operation state. Exemplarily, the neural network model can be a convolutional neural network model.

[0060] Step 102: After detecting that the ship starts the overflow operation, determine the total amount of overflow sediment of the ship.

[0061] In the embodiments of the present invention, after detecting that the ship starts the overflow operation, the total amount of overflow sediment of the ship can be determined based on the overflow flow rate during the overflow operation and the sediment concentration during the overflow process.

[0062] Specifically, when determining the total amount of overflow sediment of the ship, the overflow flow rate of the ship and the surface sediment concentration in the ship's mud tank can be obtained respectively; and the total amount of overflow sediment of the ship can be determined according to the product of the overflow flow rate and the surface sediment concentration.

[0063] Here, when obtaining the overflow flow rate of the ship, the overflow flow rate of the ship can be directly monitored by a flow meter. Additionally, considering that during the ship's overflow operation, while sediment is sucked into the bottom of the sludge tank, the surface layer of the sludge tank overflows with sediment-laden water, and its inflow rate and overflow rate usually remain consistent. Moreover, flow meters are usually installed inside the ship to monitor the inflow rate. Thus, in the embodiments of the present invention, the monitored inflow rate can also be directly determined as the overflow flow rate of the ship.

[0064] Considering that all the sediment-laden water overflowing to the sea surface is located on the upper surface of the sludge tank, in the embodiments of the present invention, a sediment concentration meter can be used to monitor the surface sediment concentration on the upper surface of the sludge tank, and this surface sediment concentration can be determined as the overflow sediment concentration during the overflow process.

[0065] When determining the total amount of overflow sediment in the embodiments of the present invention, considering that both the overflow flow rate and the overflow sediment concentration of the ship are variables that change over time, the product of the overflow flow rate and the overflow sediment concentration at different times can be calculated respectively, and the product at different times can be integrated along the time axis to obtain the total amount of overflow sediment during the ship's overflow operation.

[0066] Step 103: Input the total amount of overflow sediment into the trained suspended sediment diffusion model to obtain the deposition distribution data output by the suspended sediment diffusion model. Among them, the suspended sediment diffusion model simulates the diffusion process of sediment based on the total amount of overflow sediment and determines the deposition distribution data.

[0067] Here, by inputting the total amount of overflow sediment during the overflow period into the suspended sediment diffusion model, the diffusion process of the overflow sediment in seawater during the overflow period can be simulated, so as to determine the deposition distribution of the overflow sediment during the overflow period and output the deposition distribution data.

[0068] Step 104: Determine the overflow end time according to the deposition distribution data output by the suspended sediment diffusion model, and when the overflow end time is reached, give an overflow end prompt to remind the ship to end the overflow operation.

[0069] Here, the deposition distribution data may include: the sediment deposition thickness at different positions within the preset navigable waters. To avoid the sediment deposition thickness being too large due to too long an overflow time and affecting the surrounding navigable waters adjacent to the construction area, in the embodiments of the present invention, the overflow end time can be determined according to the sediment deposition thickness at different positions during the overflow period, so as to timely remind the ship to end the overflow operation and avoid affecting the surrounding navigable waters adjacent to the construction area due to the deposition of overflow sediment.

[0070] In some embodiments, the sediment deposition thickness at different positions within the preset navigable waters can be compared with the warning thickness respectively; and the moment when the sediment deposition thickness at any position within the preset navigable waters reaches the warning thickness can be determined as the overflow end time.

[0071] Among them, the preset navigable waters can be determined according to the sediment deposition distribution area and the construction area. Exemplarily, in the embodiments of the present invention, the navigable waters other than the construction area in the sediment deposition distribution area can be determined as the preset navigable waters. Here, the sediment deposition distribution area is used to represent the distribution position of the overflow sediment deposited on the seabed after diffusion and deposition.

[0072] During the ship construction process, the overflow sediment will not only spread into the construction area, but also spread into the above-mentioned preset navigable waters. In the embodiments of the present invention, when comparing the sediment deposition thickness with the warning thickness, the sediment deposition thickness at different positions in the preset navigable waters can be compared with the warning thickness, and then the moment when the sediment deposition thickness at any position in the preset navigable waters reaches the warning thickness can be determined as the overflow end moment.

[0073] In some other embodiments, the total sediment deposition amount in the preset navigable waters can be calculated according to the sediment deposition thickness at different positions in the preset navigable waters and the area at the corresponding positions; and the moment when the total sediment deposition amount in the preset navigable waters reaches the warning total amount can be determined as the overflow end moment.

[0074] Here, the product of the sediment deposition thickness at different positions and the area at the corresponding positions is the sediment deposition amount at different positions. By accumulating the sediment deposition amounts at different positions in the preset navigable waters, the total sediment deposition amount inside the preset navigable waters can be determined, and then the overflow end moment can be determined according to the total sediment deposition amount inside the preset navigable waters.

[0075] It can be understood that the greater the sediment deposition thickness and the total sediment deposition amount of the overflow sediment in the navigable waters, the more unfavorable it is to the water depth of the navigable waters. In the embodiments of the present invention, the overflow end moment is determined according to the sediment deposition thickness and the total sediment deposition amount caused by the overflow sediment spreading into the preset navigable waters, so as to avoid the sediment deposition thickness and the total sediment deposition amount inside the preset navigable waters being too large and having an adverse impact on the water depth of the preset navigable waters. Here, the warning thickness and the warning total amount can be determined according to the actual situation.

[0076] In the embodiments of the present invention, after detecting that the ship starts the overflow operation, the total amount of the overflow sediment of the ship is determined. Then, the total amount of the overflow sediment is input into the suspended sediment diffusion model to simulate the diffusion process of the overflow sediment and determine the deposition distribution data. Subsequently, the overflow end moment is determined according to the deposition distribution data. Among them, the deposition distribution data can characterize the diffusion distribution of the overflow sediment. According to the diffusion distribution of the overflow sediment, the ship can be reminded in time to end the overflow operation, so as to avoid the adverse impact of the sediment deposition after long-term overflow on the surrounding navigable waters adjacent to the construction area.

[0077] In some embodiments, seeFigure 2 , the suspended sediment diffusion model includes: an atmospheric model, a wave model, a tidal current model, and a sediment model.

[0078] Among them, the atmospheric model calculates the atmospheric dynamic field parameters at the current moment according to the position information at the current moment, and inputs the atmospheric dynamic field parameters into the wave model and the tidal current model respectively; the wave model calculates the wave field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the tidal current field data at the previous moment, and inputs the wave field data at the current moment into the tidal current model and the sediment model respectively; the tidal current model calculates the tidal current field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the wave field data at the previous moment, and inputs the tidal current field data at the current moment into the wave model and the sediment model respectively; the sediment model simulates the deposition distribution process of sediment according to the total amount of overspill sediment, wave field data, and tidal current field data at the current moment, and obtains the deposition distribution data.

[0079] Exemplarily, the atmospheric model can be a Weather Research and Forecasting (WRF) model. The atmospheric model can determine the atmospheric dynamic field data corresponding to the input time information and position information. The atmospheric dynamic field data here mainly includes: sea surface wind speed, sea surface wind pressure, net heat flux, atmospheric pressure and other data. The above atmospheric dynamic field data affects the wave field and tidal current field of the sea surface, and further affects the deposition and diffusion process of overspill sediment in the seawater.

[0080] In the embodiment of the present invention, by inputting the above atmospheric dynamic field data into the wave model, the wave field data can be calculated under the drive of the atmospheric dynamic field. At the same time, considering that the formation of waves is not only affected by the atmospheric dynamic field, but also affected by the tidal current field, therefore, in the embodiment of the present invention, the tidal current field data at the previous moment is also input into the wave model to determine the wave field data generated at the current moment. Exemplarily, the wave model can be a Simulating Waves Nearshore (SWAN) model.

[0081] Similarly, the tidal current field is not only affected by the atmospheric dynamic field, but also affected by the wave field. In the embodiment of the present invention, the atmospheric dynamic field data and the wave field data at the previous moment are input into the tidal current model together, so as to determine the tidal current field data at the current moment.

[0082] Among them, the wave field data mainly includes wave height, period, wavelength, wave speed, etc. The tidal current field data mainly includes the flow velocity and flow direction of seawater, etc. The wave field and the tidal current field act together on the overspill sediment overflowing to the sea surface, affecting the deposition and diffusion process of the overspill sediment.

[0083] In an embodiment of the present invention, wave field data, tidal current field data, and the total amount of overspill sediment are input into a sediment model to determine the deposition distribution of the overspill sediment and obtain deposition distribution data.

[0084] Exemplarily, the tidal current model and the sediment model in the embodiment of the present invention can be a Finite-Volume Coastal Ocean Model (FVCOM). The FVCOM model can numerically calculate the deposition and diffusion process of sediment on the basis of simulating the tidal current field, so as to determine the deposition distribution data.

[0085] See Figure 2 , on the basis of the above suspended sediment diffusion model, in the embodiment of the present invention, when simulating the deposition of the total amount of overspill sediment, the overspill time period and the ship overspill area can be obtained first, and the overspill time period and the ship overspill area are input into an atmospheric model to obtain the atmospheric dynamic field data in the overspill area where the ship is located during the overspill time period. During the overspill time period, the atmospheric dynamic field data in the overspill area where the ship is located are respectively input into the tidal current model and the wave model to determine the tidal current field data and the wave field data in the ship overspill area during the overspill time period. Then, the total amount of overspill sediment is input into the sediment model as a point source strength, so as to simulate and obtain the deposition distribution data corresponding to the total amount of overspill sediment. Substantially, the above ship overspill area is the construction area of the ship.

[0086] In some embodiments, before using the suspended sediment diffusion model to simulate the deposition distribution process of overspill sediment, the suspended sediment diffusion model can be pre-trained, and the specific training process is as follows:

[0087] First, obtain the total amount of overspill sediment and the actual deposition distribution data in different overspill time periods; then, input the total amount of overspill sediment into the suspended sediment diffusion model to obtain the predicted deposition distribution data output by the suspended sediment diffusion model; subsequently, adjust the model parameters in the suspended sediment diffusion model according to the difference between the predicted deposition distribution data and the corresponding actual deposition distribution data, and based on the adjusted suspended sediment diffusion model, re-execute the step of inputting the total amount of overspill sediment into the suspended sediment diffusion model until the difference between the predicted deposition distribution data and its corresponding actual deposition distribution data is within a preset difference range, and obtain the trained suspended sediment diffusion model.

[0088] Here, the total amount of overspill sediment and the actual deposition distribution data in each overspill time period can be used as a training sample for training the suspended sediment diffusion model.

[0089] The model training process of the suspended sediment diffusion model is the process of adjusting the model parameters of the suspended sediment diffusion model. In the embodiments of the present invention, the model parameters are adjusted correspondingly according to the difference between the predicted deposition distribution data output by the suspended sediment diffusion model and the actual deposition distribution data, so that the difference between the predicted deposition distribution data and the corresponding actual deposition distribution data is within the preset difference range, and the trained suspended sediment diffusion model is obtained.

[0090] Here, the model parameters in the suspended sediment diffusion model may include: deposition rate. Among them, the deposition rate is used to characterize the amount of sediment deposited on the seabed per unit time.

[0091] In some embodiments, when the actual deposition distribution data is greater than the predicted deposition distribution data, the deposition rate in the suspended sediment diffusion model can be increased; when the actual deposition distribution data is less than the predicted deposition distribution data, the deposition rate in the suspended sediment diffusion model can be decreased.

[0092] In the embodiments of the present invention, when the sediment deposition thickness at different positions in the actual deposition distribution data is greater than the sediment deposition thickness at the corresponding positions in the predicted deposition distribution data, the deviation between the actual deposition distribution data and the predicted deposition distribution data can be reduced by increasing the deposition rate. Similarly, when the sediment deposition thickness at different positions in the actual deposition distribution data is less than the sediment deposition thickness at the corresponding positions in the predicted deposition distribution data, the deposition rate can be decreased.

[0093] Here, when adjusting the deposition rate, the following process can be executed:

[0094] If the difference between the actual deposition distribution data and the predicted deposition distribution data corresponding to the current training sample exceeds the preset difference range, the predicted deposition distribution data corresponding to different moments within the overflow period of the training sample and the corresponding actual deposition distribution data are obtained; subsequently, the deviation between the actual deposition distribution data and the predicted deposition distribution data at different moments within the overflow period is calculated correspondingly, and the predicted deviation at different moments within the overflow period is obtained correspondingly. Then, based on the predicted deviation at different moments within the overflow period, the deposition rate adjustment amount at different moments within the overflow period is determined correspondingly, and then the average value of the deposition rate adjustment amounts at each moment within the overflow period is determined as the deposition rate adjustment amount within the overflow period. And the deposition rate is adjusted according to the deposition rate adjustment amount.

[0095] Among them, when calculating the deviation between the actual deposition distribution data and the predicted deposition distribution data at different moments within the same overflow period, the average value of the actual sediment deposition thickness at different positions at the same moment within this overflow period can be calculated and determined as the actual deposition average value at this moment. Meanwhile, the average value of the predicted sediment deposition thickness at different positions at the same moment within this overflow period is calculated and determined as the predicted deposition average value at this moment. Then, the difference between the actual deposition average value and the predicted deposition average value is determined as the deviation between the actual deposition distribution data and the predicted deposition distribution data at this moment, that is, the predicted deviation at this moment within this overflow period.

[0096] In an embodiment of the present invention, when correspondingly determining the deposition rate adjustment amount at different moments within the overflow period based on the predicted deviation at different moments within the overflow period, for the predicted deviation at each moment, first, the time difference between this moment and the start moment of the overflow is determined. Secondly, the ratio between the predicted deviation at this moment and the above time difference is calculated. Finally, this ratio is determined as the deposition rate adjustment amount at this moment.

[0097] The above adjustment process of the deposition rate can be expressed by the following formula: ;

[0098] Among them, represents the deposition rate adjustment amount, represents the total duration within the overflow period, represents within the overflow period the deviation between the actual deposition distribution data and the predicted deposition distribution data at the moment of represents the start moment of the overflow.

[0099] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0100] The following is the device embodiment of the present invention. For the details not described in detail, reference can be made to the corresponding method embodiment above.

[0101] Figure 3 The structural schematic diagram of the overflow control device provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown and are described in detail as follows:

[0102] As Figure 3 shown, the overflow control device 3 includes: a monitoring module 31, a calculation module 32, and a control module 33.

[0103] The monitoring module 31 is used to monitor whether the ship starts the overflow operation;

[0104] Computing module 32 is configured to:

[0105] After detecting that the ship starts the overflow operation, determine the total amount of overflow sediment of the ship;

[0106] Input the total amount of overflow sediment into the trained suspended sediment diffusion model to obtain the deposition distribution data output by the suspended sediment diffusion model; wherein, the suspended sediment diffusion model simulates the diffusion process of sediment according to the total amount of overflow sediment and determines the deposition distribution data;

[0107] Control module 33 is configured to determine the end time of the overflow according to the deposition distribution data output by the suspended sediment diffusion model, and when the end time of the overflow is reached, give a prompt for the end of the overflow to remind the ship to end the overflow operation.

[0108] In a possible implementation, the suspended sediment diffusion model includes: an atmospheric model, a wave model, a tidal current model, and a sediment model;

[0109] The atmospheric model calculates the atmospheric dynamic field parameters at the current moment according to the position information at the current moment, and inputs the atmospheric dynamic field parameters into the wave model and the tidal current model respectively;

[0110] The wave model calculates the wave field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the tidal current field data at the previous moment, and inputs the wave field data at the current moment into the tidal current model and the sediment model respectively;

[0111] The tidal current model calculates the tidal current field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the wave field data at the previous moment, and inputs the tidal current field data at the current moment into the wave model and the sediment model respectively;

[0112] The sediment model simulates the deposition distribution process of sediment according to the total amount of overflow sediment, wave field data, and tidal current field data at the current moment, and obtains the deposition distribution data.

[0113] In a possible implementation, the deposition distribution data includes: the sediment deposition thicknesses at different positions within the preset navigable waters;

[0114] The control module 33 is specifically configured to:

[0115] Compare the sediment deposition thicknesses at different positions within the preset navigable waters with the warning thickness respectively;

[0116] Determine the moment when the sediment deposition thickness at any position within the preset navigable waters reaches the warning thickness as the end time of the overflow;

[0117] Or

[0118] Calculate the total amount of sediment deposition in the preset navigable water area according to the sediment deposition thickness at different positions in the preset navigable water area and the area at the corresponding positions.

[0119] Determine the moment when the total amount of sediment deposition in the preset navigable water area reaches the warning total amount as the end moment of the overflow.

[0120] In a possible implementation manner, the calculation module 32 is specifically configured to:

[0121] Obtain the overflow flow rate of the ship and the surface sediment concentration in the ship's mud tank respectively.

[0122] Determine the total amount of overflow sediment of the ship according to the product of the overflow flow rate and the surface sediment concentration.

[0123] In a possible implementation manner, the calculation module 32 is further configured to:

[0124] Obtain the total amount of overflow sediment and the actual deposition distribution data in different overflow periods.

[0125] Input the total amount of overflow sediment into the suspended sediment diffusion model to obtain the predicted deposition distribution data output by the suspended sediment diffusion model.

[0126] According to the difference between the predicted deposition distribution data and the corresponding actual deposition distribution data, adjust the model parameters in the suspended sediment diffusion model, and based on the adjusted suspended sediment diffusion model, re-execute the step of inputting the total amount of overflow sediment into the suspended sediment diffusion model until the difference between the predicted deposition distribution data and its corresponding actual deposition distribution data is within the preset difference range to obtain the trained suspended sediment diffusion model.

[0127] In a possible implementation manner, the model parameters in the suspended sediment diffusion model include: deposition rate;

[0128] The calculation module 32 is specifically configured to:

[0129] When the actual deposition distribution data is greater than the predicted deposition distribution data, increase the deposition rate in the suspended sediment diffusion model;

[0130] When the actual deposition distribution data is less than the predicted deposition distribution data, decrease the deposition rate in the suspended sediment diffusion model.

[0131] In a possible implementation manner, the calculation module 32 is specifically configured to:

[0132] Obtain the overflow period and the ship's overflow area, and input the overflow period and the ship's overflow area into the atmospheric model;

[0133] Take the total amount of overflow sediment as the point source strength and input it into the sediment model to obtain the deposition distribution data corresponding to the total amount of overflow sediment.

[0134] The overflow control device provided in this embodiment can be used to execute the above method embodiment, and its implementation principle and technical effects are similar, which will not be elaborated here in this embodiment.

[0135] Figure 4 It is a schematic diagram of the electronic device provided in the embodiment of the present invention. As Figure 4 shown, the electronic device 4 in this embodiment includes: a processor 40, a memory 41, and a computer program 42 stored in the memory 41 and executable on the processor 40. When the processor 40 executes the computer program 42, the steps in the above-mentioned various overflow control method embodiments are implemented, such as Figure 1 the steps 101 to 104 shown. Alternatively, when the processor 40 executes the computer program 42, the functions of each module / unit in the above-mentioned device embodiments are implemented, such as Figure 3 the functions of the modules 31 to 33 shown.

[0136] Exemplarily, the computer program 42 can be divided into one or more modules / units. One or more modules / units are stored in the memory 41 and executed by the processor 40 to complete the present invention. One or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the computer program 42 in the electronic device 4. For example, the computer program 42 can be divided into Figure 3 the modules 31 to 33 shown.

[0137] The electronic device 4 can be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The electronic device 4 may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art can understand that Figure 4 this is only an example of the electronic device 4 and does not constitute a limitation on the electronic device 4. It may include more or fewer components than shown in the figure, or combine some components, or different components. For example, the electronic device may further include input / output devices, network access devices, a bus, etc.

[0138] The so-called processor 40 may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0139] The memory 41 may be an internal storage unit of the electronic device 4, such as the hard disk or memory of the electronic device 4. The memory 41 may also be an external storage device of the electronic device 4, such as a plug-in hard disk equipped on the electronic device 4, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. Further, the memory 41 may also include both the internal storage unit and the external storage device of the electronic device 4. The memory 41 is used to store computer programs and other programs and data required by the electronic device. The memory 41 may also be used to temporarily store data that has been output or is to be output.

[0140] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be allocated to different functional units and modules as needed, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiments can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of this application. The specific working processes of the units and modules in the above system can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated here.

[0141] In the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0142] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0143] In the embodiments provided by the present invention, it should be understood that the disclosed device / electronic device and method can be implemented in other ways. For example, the device / electronic device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the device or unit can be in electrical, mechanical or other forms.

[0144] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0145] In addition, the functional units in the various embodiments of the present invention can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0146] When the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, to implement all or part of the processes in the above-described embodiment methods of the present invention, it can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-described various overflow control method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. An overflow control method, characterized in that: include: Monitor whether the vessel has started overflow operations; When the ship is detected to have started overflowing, the total amount of overflow sediment of the ship is determined; The total amount of overflow sediment is input into a trained suspended sediment diffusion model to obtain the sedimentation distribution data output by the suspended sediment diffusion model; wherein the suspended sediment diffusion model simulates the sediment diffusion process according to the total amount of overflow sediment to determine the sedimentation distribution data; Determine the overflow end time according to the siltation distribution data output by the suspended sediment diffusion model, and issue an overflow end prompt when the overflow end time is reached to remind the ship to end the overflow operation; Determine the total amount of sediment spilled by the vessel, including: The overflow flow of the ship and the surface sediment concentration of the ship's internal mud tank are obtained respectively; Determining the total amount of overflow sediment of the ship according to the product of the overflow flow and the surface sediment concentration; The suspended sediment diffusion model includes: an atmospheric model, a wave model, a tidal model and a sediment model; The atmospheric model calculates the atmospheric dynamic field parameters at the current moment according to the position information at the current moment, and inputs the atmospheric dynamic field parameters into the wave model and the tidal current model respectively; The wave model calculates the wave field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the tidal field data at the previous moment, and inputs the wave field data at the current moment into the tidal model and the sediment model respectively; The tidal current model calculates the tidal current field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the wave field data at the previous moment, and inputs the tidal current field data at the current moment into the wave model and the sediment model respectively; The sediment model simulates the sediment distribution process according to the total amount of overflow sediment, wave field data and tidal field data at the current moment to obtain sediment distribution data; The total amount of overflow sediment is input into the trained suspended sediment diffusion model to obtain the sedimentation distribution data output by the suspended sediment diffusion model, including: Obtaining an overflow period and a ship overflow area, and inputting the overflow period and the ship overflow area into an atmospheric model; The total amount of overflow sediment is used as a point source intensity and input into a sediment model to obtain siltation distribution data corresponding to the total amount of overflow sediment; The siltation distribution data includes: the thickness of silt deposition at different locations in the preset navigable waters; Determining the overflow end time according to the siltation distribution data output by the suspended sediment diffusion model includes: Respectively comparing the sediment thickness at different locations within the preset navigable waters with the warning thickness; The time when the sediment deposition thickness at any location in the preset navigable waters reaches the warning thickness is determined as the overflow end time; or Calculate the total amount of sediment deposition in the preset navigable waters based on the sediment deposition thickness at different locations in the preset navigable waters and the area at the corresponding locations; The time when the total amount of silt deposition in the preset navigable waters reaches the total amount for warning is determined as the overflow end time.

2. The overflow control method according to claim 1, characterized in that: The method further comprises: Obtain the total amount of overflow sediment and actual siltation distribution data during different overflow periods; Inputting the total amount of overflow sediment into the suspended sediment diffusion model to obtain predicted sedimentation distribution data output by the suspended sediment diffusion model; According to the difference between the predicted siltation distribution data and the corresponding actual siltation distribution data, the model parameters in the suspended sediment diffusion model are adjusted, and based on the adjusted suspended sediment diffusion model, the step of inputting the total amount of overflow sediment into the suspended sediment diffusion model is re-executed until the difference between the predicted siltation distribution data and the corresponding actual siltation distribution data is within a preset difference range, thereby obtaining a trained suspended sediment diffusion model.

3. The overflow control method according to claim 2, characterized in that: The model parameters in the suspended sediment diffusion model include: siltation rate; According to the difference between the predicted siltation distribution data and the corresponding actual siltation distribution data, the model parameters in the suspended sediment diffusion model are adjusted, including: When the actual siltation distribution data is greater than the predicted siltation distribution data, increasing the siltation rate in the suspended sediment diffusion model; When the actual siltation distribution data is less than the predicted siltation distribution data, the siltation rate in the suspended sediment diffusion model is reduced.

4. An overflow control device, characterized in that: include: A monitoring module is used to monitor whether the ship has started overflow operations; Compute module for: When the ship is detected to have started overflowing, the total amount of overflow sediment of the ship is determined; The total amount of overflow sediment is input into a trained suspended sediment diffusion model to obtain the sedimentation distribution data output by the suspended sediment diffusion model; wherein the suspended sediment diffusion model simulates the sediment diffusion process according to the total amount of overflow sediment to determine the sedimentation distribution data; A control module, used for determining the overflow end time according to the siltation distribution data output by the suspended sediment diffusion model, and giving an overflow end prompt when the overflow end time is reached, so as to remind the ship to end the overflow operation; Determine the total amount of sediment spilled by the vessel, including: The overflow flow of the ship and the surface sediment concentration of the ship's internal mud tank are obtained respectively; Determining the total amount of overflow sediment of the ship according to the product of the overflow flow and the surface sediment concentration; The suspended sediment diffusion model includes: an atmospheric model, a wave model, a tidal model and a sediment model; The atmospheric model calculates the atmospheric dynamic field parameters at the current moment according to the position information at the current moment, and inputs the atmospheric dynamic field parameters into the wave model and the tidal current model respectively; The wave model calculates the wave field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the tidal field data at the previous moment, and inputs the wave field data at the current moment into the tidal model and the sediment model respectively; The tidal current model calculates the tidal current field data at the current moment according to the atmospheric dynamic field parameters at the current moment and the wave field data at the previous moment, and inputs the tidal current field data at the current moment into the wave model and the sediment model respectively; The sediment model simulates the sediment distribution process according to the total amount of overflow sediment, wave field data and tidal field data at the current moment to obtain sediment distribution data; The total amount of overflow sediment is input into the trained suspended sediment diffusion model to obtain the sedimentation distribution data output by the suspended sediment diffusion model, including: Obtaining an overflow period and a ship overflow area, and inputting the overflow period and the ship overflow area into an atmospheric model; The total amount of overflow sediment is used as a point source intensity and input into a sediment model to obtain siltation distribution data corresponding to the total amount of overflow sediment; The siltation distribution data includes: the thickness of silt deposition at different locations in the preset navigable waters; Determining the overflow end time according to the siltation distribution data output by the suspended sediment diffusion model includes: Respectively comparing the sediment thickness at different locations within the preset navigable waters with the warning thickness; The time when the sediment deposition thickness at any location in the preset navigable waters reaches the warning thickness is determined as the overflow end time; or Calculate the total amount of sediment deposition in the preset navigable waters based on the sediment deposition thickness at different locations in the preset navigable waters and the area at the corresponding locations; The time when the total amount of silt deposition in the preset navigable waters reaches the total amount for warning is determined as the overflow end time.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the overflow control method according to any one of claims 1 to 3 are implemented.

6. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the overflow control method as described in any one of claims 1 to 3 are implemented.

Images