Water conservancy dispatching control method and system in flood area

Abstract

The invention provides a flood area water conservancy dispatching control method and system, and relates to the technical field of data processing. Determining the undetermined expected water level of the river according to the maximum limit water level of the river in the flood area, the rainfall capacity of the flood area in the historical flood period and the maximum water storage capacity of the polder areas on the closure section of the river; the final expected water level is determined according to the expected water level to be determined and the minimum water storage of the flood area, and the expected water discharge is determined according to the expected water level, the current real-time water level of the river and the average flow carrying area of the closure section of the flood area. The pre-time of water conservancy scheduling is obtained according to the expected water discharge, the maximum flow at the downstream sluice and the maximum water storage and predicted evaporation capacity of the polder areas on the intercepting section of the river, the upstream sluice, the downstream sluice and polder area water inlet sluices are controlled to work in a combined mode according to the pre-time, the water level in the river is lowered, the water storage capacity of the river is improved, and the water conservancy scheduling efficiency is improved. The flood fighting capacity of the river is enhanced, flood peaks can be dealt with, and flood disasters are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data processing, in particular to a flood area water conservancy dispatching control method and system. BACKGROUND

[0002] Flood area water conservancy dispatching control is a complex system engineering, and the goal is to maximize the use of water conservancy projects (reservoirs, polders, sluices, river channels, flood storage areas, etc.) to reduce flood peaks and store flood water, thereby protecting important targets.

[0003] The existing flood area water conservancy dispatching control method is based on real-time water and rainfall monitoring and flood forecasting information, dynamically adjusts the operation state of the project, and cooperates with the water conservancy project system, but the river capacity is limited, and when strong and sudden rainfall or extreme floods occur, the flood peak cannot be reduced, causing flood disasters. SUMMARY

[0004] The problem to be solved by the present application is that the existing flood area water conservancy dispatching control method is based on real-time water and rainfall monitoring and flood forecasting information, and when strong and sudden rainfall occurs, the flood peak cannot be reduced.

[0005] To solve the above problems, in a first aspect, the present application provides a flood area water conservancy dispatching control method and system, comprising: determining a to-be-determined expected water level of a river in a flood area according to a maximum limit water level of the river, a historical flood period rainfall of the flood area, and maximum water storage capacities of multiple polders on a cutoff section of the river, wherein the cutoff section is a river section between an upstream sluice and a downstream sluice, and both the upstream sluice and the downstream sluice are located at the boundary of the flood area; determining a final expected water level according to the to-be-determined expected water level and a minimum water storage capacity of the flood area; determining an expected drainage capacity according to the final expected water level, a current real-time water level of the river, and an average flow-carrying area of the cutoff section of the flood area; obtaining a preposition time of water conservancy dispatching according to the expected drainage capacity, a maximum flow at the downstream sluice, the maximum water storage capacities of the multiple polders on the cutoff section of the river, and a predicted evaporation capacity; controlling the upstream sluice, the downstream sluice, and a polder inlet sluice to work jointly according to the preposition time.

[0006] Optionally, the determination of the final expected water level according to the to-be-determined expected water level and the minimum water storage capacity of the flood area comprises: obtaining a minimum limit water level according to the minimum water storage capacity of the flood area and the average flow-carrying area of the cutoff section of the flood area; determining whether the to-be-determined expected water level is greater than the minimum limit water level; if the to-be-determined expected water level is greater than the minimum limit water level, the to-be-determined expected water level is taken as the final expected water level. If the to-be-determined expected water level is less than or equal to the minimum limit water level, the to-be-determined expected water level is re-determined according to the maximum limit water level of the river in the flood area, the historical flood period rainfall of the flood area, the maximum water storage of the multiple polders on the interception section of the river, and the maximum water storage of the emergency expansion area outside the polder, wherein the emergency expansion area outside the polder is a preset planning area allowed to be flooded after the polder is broken; It is determined whether the re-determined to-be-determined expected water level is greater than the minimum limit water level; If the re-determined to-be-determined expected water level is greater than the minimum limit water level, the re-determined to-be-determined expected water level is taken as the final expected water level; If the re-determined to-be-determined expected water level is still less than or equal to the minimum limit water level, the minimum limit water level is taken as the final expected water level, and a surplus amount is determined according to a water level difference between the re-determined to-be-determined expected water level and the minimum limit water level.

[0007] Optionally, the to-be-determined expected water level is , The re-determined to-be-determined expected water level is , wherein, represents the to-be-determined expected water level, represents the re-determined to-be-determined expected water level, represents the maximum limit water level of the river in the flood area, and H represents the historical flood period rainfall of the flood area, represents the maximum water storage of the i th polder on the interception section, and n represents the number of polders, represents the maximum water storage of the j th emergency expansion area on the interception section, and m represents the number of emergency expansion areas, represents the average carrying capacity of the interception section of the flood area.

[0008] Optionally, the expected drainage amount is: , wherein Q represents the expected drainage amount, represents the current real-time water level of the river, represents the final expected water level, represents the average carrying capacity of the interception section of the flood area.

[0009] Optionally, the pre-dispatching time of the water conservancy dispatching is: , , , , , , , wherein T represents a lead time of water conservancy scheduling, represents a preset time, represents a time required for an expected discharge volume to be discharged from the cutoff section, and Q represents the expected discharge volume, represents a number of times of discharging water to the i-th plot, represents a maximum water storage of the i-th plot on the cutoff section, and n represents a number of plots, represents a time required for water in the i-th plot to be completely evaporated, and q represents a maximum flow at a downstream sluice, represents a time required for water in all plots to be completely evaporated, and respectively represent a number of times of discharging water to the k-th plot and a number of times of discharging water to the r-th plot, and respectively represent a maximum water storage of the k-th plot and a maximum water storage of the r-th plot, represents an absolute time difference of a time required for water in any two plots to be completely evaporated, p represents a predicted evaporation amount, and β represents a correction coefficient.

[0010] Optionally, after the lead time of water conservancy scheduling is obtained according to the expected discharge volume, the maximum flow at the downstream sluice, the maximum water storage of the plots on the cutoff section of the river, and the predicted evaporation amount, the method further comprises: segmenting the lead time of water conservancy scheduling according to a preset time step to obtain a plurality of time windows; determining, according to meteorological prediction data and the plurality of time windows, a predicted evaporation amount corresponding to each time window; when a time required for water in a plot to be completely evaporated in a previous time window satisfies a preset condition, updating the predicted evaporation amount in a next time window, and correcting a time required for water in each plot to be completely evaporated and a time required for water in all plots to be completely evaporated.

[0011] Optionally, the preset condition is: , wherein represents a number of times of discharging water of the i-th plot in the x-th time window, represents a predicted evaporation amount corresponding to the x-th time window, represents a maximum water storage of the i-th plot on the cutoff section, represents a preset time step, and x represents a number of time windows.

[0012] Optionally, the corrected time required for water in each plot to be completely evaporated is: , , the time required for all the water in the i-th plot to evaporate completely: , wherein, represents the number of times of drainage of the i-th plot in the x-th time window, represents the predicted evaporation amount corresponding to the x-th time window, represents the maximum water storage of the i-th plot on the intercept section, represents the time required for all the water in the i-th plot to evaporate completely, and β represents a correction coefficient.

[0013] Optionally, the controlling the upstream water gate, the downstream water gate and the plot water gate to jointly work according to the lead time comprises: determining a control time point according to a flood prediction time point in meteorological prediction data and the lead time; controlling the upstream water gate to be closed and the downstream water gate to be completely opened at the control time point, and controlling the water gate of each plot to be opened after the water in the plot evaporates completely, and the number of times of cyclic opening is .

[0014] In a second aspect, the present application further provides a flood area water conservancy scheduling control method and system, comprising: a to-be-determined expected water level analysis module configured to determine a to-be-determined expected water level of a river in a flood area according to a maximum limit water level of the river, historical flood period rainfall of the flood area and maximum water storage of a plurality of plots on an intercept section of the river, wherein the intercept section is a river section between an upstream water gate and a downstream water gate, and the upstream water gate and the downstream water gate are both located at a boundary of the flood area; a final expected water level analysis module configured to determine a final expected water level according to the to-be-determined expected water level and minimum water storage of the flood area; an expected drainage amount analysis module configured to determine an expected drainage amount according to the final expected water level, a current real-time water level of the river and an average flow-carrying area of the intercept section of the flood area; a lead time analysis module configured to obtain a lead time of water conservancy scheduling according to the expected drainage amount, a maximum flow at the downstream water gate, the maximum water storage of the plurality of plots on the intercept section of the river and a predicted evaporation amount; a control module configured to control the upstream water gate, the downstream water gate and the plot water gate to jointly work according to the lead time.

[0015] The present application provides a flood area water conservancy scheduling control method and system. Compared with the prior art, the present application has the following beneficial effects: According to the maximum limit water level of the river in the flood area, the rainfall in the historical flood period of the flood area and the maximum water storage of the multiple polders on the interception section of the river, the undetermined expected water level of the river is determined, which is the highest water level that the river can cope with the flood rainfall when the flood occurs, that is, when the water level of the river is kept below the undetermined expected water level, the river can accommodate the rainfall during the flood; then the final expected water level is determined according to the undetermined expected water level and the minimum water storage of the flood area, and the minimum water storage is the minimum water storage of the interception section to meet the water demand of the flood area, so as to take into account the pre-control of the river and the daily water demand of the residents in the flood area, the expected drainage capacity is determined according to the final expected water level, the current real-time water level of the river and the average flow area of the interception section of the flood area, and the current river water storage can be analyzed to obtain the expected drainage capacity of the current river, and then the pre-control time of water conservancy dispatching is obtained according to the expected drainage capacity, the maximum flow at the downstream water gate, the maximum water storage of the multiple polders on the interception section of the river and the predicted evaporation, so that the upstream water gate, the downstream water gate and the polder water gate can be controlled according to the pre-control time, the water level in the river is lowered in a planned manner before the flood period, the water storage capacity of the river during the flood period is improved, the flood resistance of the river is enhanced, even if strong and sudden rainfall occurs, the river can still cope with the flood peak, rainwater will not flow back and leak to the residential area, and the occurrence of flood disasters is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 A flowchart of a water conservancy dispatching control method in a flood area provided by an embodiment of the present application; Figure 2 A local schematic view of an interception section in a flood area provided by an embodiment of the present application; Figure 3 A structural schematic view of a water conservancy dispatching control system in a flood area provided by an embodiment of the present application; Figure 4 A structural schematic view of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0019] In order to better understand the above technical solutions, the above technical solutions will be described in detail in combination with the accompanying drawings and specific embodiments.

[0020] As shown in the Figure 1 , the flood area water conservancy scheduling control method provided by the embodiments of the present application comprises: S1: determining a to-be-determined expected water level of a river according to a maximum limit water level of the river, a historical flood period rainfall of the flood area and maximum water storage capacities of multiple polder areas on a cutoff section of the river, wherein the cutoff section is a river section between an upstream water gate and a downstream water gate, and the upstream water gate and the downstream water gate are both located at a boundary of the flood area, as shown in the Figure 2 .

[0021] S2: determining a final expected water level according to the to-be-determined expected water level and a minimum water storage capacity of the flood area.

[0022] S3: determining an expected drainage capacity according to the final expected water level, a current real-time water level of the river and an average flow-carrying area of the cutoff section of the flood area.

[0023] S4: obtaining a preposition time of water conservancy scheduling according to the expected drainage capacity, a maximum flow at the downstream water gate, the maximum water storage capacities of the multiple polder areas on the cutoff section of the river and a predicted evaporation capacity.

[0024] S5: controlling the upstream water gate, the downstream water gate and a polder area water inlet gate to work jointly according to the preposition time.

[0025] In the optional embodiment, the undetermined expected water level of the river is determined according to the maximum limit water level of the river in the flood area, the historical flood period rainfall of the flood area and the maximum water storage of the multiple polders on the interception section of the river, the undetermined expected water level is the highest water level that the river can cope with the flood rainfall when the flood occurs, that is, when the water level of the river remains below the undetermined expected water level, the river can accommodate the rainfall during the flood period; then the final expected water level is determined according to the undetermined expected water level and the minimum water storage of the flood area, the minimum water storage is the minimum water storage of the interception section to meet the water demand of the flood area (such as daily water, irrigation or power generation, etc.), so as to balance the pre-control of the river and the daily water demand of the residents in the flood area, the expected drainage capacity is determined according to the final expected water level, the current real-time water level of the river and the average carrying area of the interception section of the flood area, the expected drainage capacity of the current river can be analyzed according to the current water storage of the river, and then the pre-control time of water conservancy is obtained according to the expected drainage capacity, the maximum flow at the downstream sluice, the maximum water storage of the multiple polders on the interception section of the river and the predicted evaporation, so as to control the upstream sluice, the downstream sluice and the polder water inlet sluice to work jointly according to the pre-control time, to plan to lower the water level in the river before the flood period comes, to improve the water storage capacity of the river during the flood period, to enhance the flood resistance of the river, so that even if strong and sudden rainfall occurs, the river can still cope with the flood peak, rainwater will not flow back and leak to the residential area, and the occurrence of flood disaster is reduced.

[0026] The steps are described in detail below.

[0027] S1: determining an undetermined expected water level of a river in a flood area according to a maximum limit water level of the river in the flood area, a historical flood period rainfall of the flood area and maximum water storage of multiple polders on an interception section of the river, wherein the interception section is a river section between an upstream sluice and a downstream sluice, and the upstream sluice and the downstream sluice are both located at the boundary of the flood area, as shown in FIG. Figure 2

[0028] The undetermined expected water level is , wherein, represents the undetermined expected water level, represents a redetermined undetermined expected water level, represents the maximum limit water level of the river in the flood area, H represents the historical flood period rainfall of the flood area, represents the maximum water storage of the i-th polder on the interception section, and n represents the number of polders, represents the average carrying area of the interception section of the flood area.

[0029] S2: determining a final expected water level according to the undetermined expected water level and the minimum water storage of the flood area.

[0030] ​S21: obtaining a minimum limit water level according to a minimum water storage capacity of the flood area and an average carrying capacity of the flood area on the interception section.

[0031] Specifically, the minimum water storage capacity is the minimum water storage capacity of the interception section to meet the water demand of the flood area, and the carrying capacity of the flood area on the interception section is the area of the slope surface along the river direction. However, since the river profile varies greatly in space, an average area of the river slope surface can be taken from the digital elevation model of the river as the average carrying capacity. The minimum limit water level is obtained by dividing the minimum water storage capacity by the average carrying capacity of the flood area on the interception section.

[0032] S22: determining whether the to-be-determined expected water level is greater than the minimum limit water level.

[0033] S23: If the to-be-determined expected water level is greater than the minimum limit water level, it means that the to-be-determined expected water level can meet the water demand of the residents in the flood area, and the to-be-determined expected water level is taken as the final expected water level.

[0034] S24: If the to-be-determined expected water level is less than or equal to the minimum limit water level, the to-be-determined expected water level of the river in the flood area is re-determined according to the maximum limit water level of the river in the flood area, the historical flood period rainfall of the flood area, the maximum water storage capacity of the multiple polders on the interception section of the river, and the maximum water storage capacity of the emergency expansion area outside the polders. The emergency expansion area outside the polders is a pre-planned area allowed to be flooded after the polder is broken, as shown in FIG. 1. Figure 2

[0035] In the above, the re-determined to-be-determined expected water level is wherein represents the to-be-determined expected water level, represents the re-determined to-be-determined expected water level, represents the maximum limit water level of the river in the flood area, and H represents the historical flood period rainfall of the flood area, represents the maximum water storage capacity of the i-th polder on the interception section, and n represents the number of polders, represents the maximum water storage capacity of the j-th emergency expansion area on the interception section, and m represents the number of emergency expansion areas, represents the average carrying capacity of the flood area on the interception section.

[0036] In order to meet the minimum limit water level, the to-be-determined expected water level needs to be increased, so the emergency expansion area is also used as a flood discharge standby means during heavy rain, to expand the capacity to accommodate rainfall in the later period, thereby reducing the drainage amount in the early period.

[0037] S25: determining whether the re-determined to-be-determined expected water level is greater than the minimum limit water level.

[0038] ​​S26: If the re-determined tentative expected water level is greater than the minimum limit water level, the re-determined tentative expected water level is taken as the final expected water level.

[0039] S27: If the re-determined tentative expected water level is still less than or equal to the minimum limit water level, the minimum limit water level is taken as the final expected water level, and a surplus amount is determined according to a water level difference between the re-determined tentative expected water level and the minimum limit water level.

[0040] Specifically, the minimum limit water level is subtracted from the re-determined tentative expected water level to obtain a difference value, and the difference value is multiplied by an average carrying capacity of the interception section to obtain the surplus amount. Since the re-determined tentative expected water level is still less than or equal to the minimum limit water level, the minimum limit water level is taken as the final expected water level at this time, and therefore, after the expected drainage amount is calculated according to the minimum limit water level, the remaining accommodation space in the interception section can be insufficient to cope with the upcoming heavy rainfall. If the rainfall amount in the weather forecast data during the flood period is not much different from the historical flood period rainfall amount, the rainfall of the surplus amount will overflow from the interception section and the polder area and the emergency expansion area during the flood period, and the surplus amount can be used to take preventive measures against floods in advance. If the rainfall amount in the weather forecast data during the flood period is less than the historical flood period rainfall amount, and the difference between the two can be calculated, and if the product of the difference rainfall amount and the average carrying capacity is approximately equal to the surplus amount, there is no need to worry about the upcoming heavy rainfall, and the minimum limit water level is taken as the target for pre-discharge, which can cope with the upcoming heavy rainfall in the later period.

[0041] S3: Determine an expected drainage amount according to the final expected water level, a current real-time water level of the river, and an average carrying capacity of an interception section of the flood area.

[0042] The expected drainage amount is: , wherein Q represents the expected drainage amount, represents the current real-time water level of the river, represents the final expected water level, represents the average carrying capacity of the interception section of the flood area.

[0043] S4: Obtain a pre-discharge time of water conservancy dispatching according to the expected drainage amount, a maximum flow at a downstream sluice, maximum water storage amounts of multiple polder areas on the interception section of the river, and a predicted evaporation amount.

[0044] The pre-discharge time of water conservancy dispatching is: , , , , , , , wherein max() represents a function of taking the maximum value of multiple elements in the parentheses, T represents a lead time of water conservancy scheduling, represents a preset time, represents a time required for the expected discharge to be discharged from the cutoff section, Q represents an expected discharge, represents a number of times of discharging water to the i-th polder, represents a maximum water storage of the i-th polder on the cutoff section, n represents a number of polders, represents a time required for water in the i-th polder to be completely evaporated, q represents a maximum flow at a downstream sluice, represents a time required for water in all polders to be completely evaporated, and respectively represent a number of times of discharging water to the k-th polder and a number of times of discharging water to the r-th polder, and respectively represent a maximum water storage of the k-th polder and a maximum water storage of the r-th polder, represents an absolute time difference of a time required for water in any two polders to be completely evaporated, p represents a predicted evaporation, and β represents a correction coefficient.

[0045] S41: segmenting the lead time of water conservancy scheduling according to a preset time step to obtain multiple time windows.

[0046] S42: determining a predicted evaporation corresponding to each time window according to meteorological prediction data and the multiple time windows.

[0047] S43: when a time required for water in a polder to be completely evaporated in a previous time window satisfies a preset condition, updating the predicted evaporation in a next time window and correcting a time required for water in each polder to be completely evaporated and a time required for water in all polders to be completely evaporated.

[0048] Specifically, in order to shorten the influence of water conservancy lead scheduling, it is best to shorten the lead time as much as possible, and therefore the analysis of the lead time needs to be as accurate as possible. Since the evaporation may fluctuate over time, for example, the evaporation differs greatly within one or two days due to the influence of morning and evening sunshine, therefore the fluctuating evaporation can be averaged in each time window, and the average value can be used to replace the predicted evaporation in the time window. Considering the influence of evaporation, the lead time is segmented according to a preset time step, and the accurate evaporation value of each time window is determined, so as to further correct the lead time and reduce the error of the lead time.

[0049] The preset condition to be met by the time required for water in one check dam in one time window to evaporate completely is that: , wherein, represents the number of times of drainage of the i-th check dam in the x-th time window, represents the predicted evaporation amount corresponding to the x-th time window, represents the maximum water storage of the i-th check dam on the intercepting section, represents a preset time step, and x represents the number of time windows.

[0050] For example, for the first check dam, the predicted evaporation amount is used when analyzing the evaporation time in the first time window. When , the predicted evaporation amount is updated to ; then the monitoring is performed in the next time window, and when , the predicted evaporation amount is updated to , and so on until , the critical value is reached, so that the time required for water in all check dams to evaporate completely can be reduced.

[0051] The time required for water in each check dam to evaporate completely after correction: , , The time required for water in all check dams to evaporate completely after correction: , wherein, represents the number of times of drainage of the i-th check dam in the x-th time window, represents the predicted evaporation amount corresponding to the x-th time window, represents the maximum water storage of the i-th check dam on the intercepting section, represents the time required for water in the i-th check dam to evaporate completely, and β represents a correction coefficient.

[0052] S5: According to the preposition time, the upstream water gate, downstream water gate and check dam water inlet gate are jointly controlled to work.

[0053] S51: According to the flood prediction time point in the meteorological prediction data and the preposition time, the control time point is determined.

[0054] S52: At the control time point, the upstream water gate is closed and the downstream water gate is completely opened, and the water gate of each check dam is opened after the water in the check dam evaporates completely, and the cycle opening times are .

[0055] Specifically, according to the control time point, the number of times of opening of each polder calculated and the time length required for water evaporation in the polder after each opening, the time point of opening of the water gate of the polder can be calculated in sequence, so that the opening of the water gate of the polder can be controlled according to the calculated time sequence, and at each opening, the opening time of the water gate of the polder can be calculated according to the water flow at the water gate of the polder and the maximum water storage in the polder, so as to control the closing of the water gate of the polder. Through the above method, the water conservancy system in the flood area can be controlled in advance, the flood control measures can be advanced, and the risk of later flood can be avoided, so as to greatly reduce the loss caused by the flood disaster.

[0056] As shown in Figure 3 The flood area water conservancy scheduling control system provided by the embodiment of the present application comprises: A to-be-determined expected water level analysis module 100 is configured to determine a to-be-determined expected water level of a river in a flood area according to a maximum limit water level of the river, historical flood period rainfall of the flood area and maximum water storage of a plurality of polders on a cutoff section of the river, wherein the cutoff section is a river section between an upstream water gate and a downstream water gate, and the upstream water gate and the downstream water gate are both located at the boundary of the flood area.

[0057] A final expected water level analysis module 200 is configured to determine a final expected water level according to the to-be-determined expected water level and minimum water storage of the flood area.

[0058] An expected drainage amount analysis module 300 is configured to determine an expected drainage amount according to the final expected water level, current real-time water level of the river and average flow area of the cutoff section of the flood area.

[0059] A front time analysis module 400 is configured to obtain a front time of water conservancy scheduling according to the expected drainage amount, maximum flow at the downstream water gate, maximum water storage of the plurality of polders on the cutoff section of the river and predicted evaporation amount.

[0060] A control module 500 is configured to control the upstream water gate, the downstream water gate and the polder water gate to work jointly according to the front time.

[0061] In the embodiment, the flood area water conservancy scheduling control system has similar beneficial effects to the flood area water conservancy scheduling control method, which will not be described here again.

[0062] As shown in Figure 4 The electronic device provided by the embodiment of the present application comprises a memory 610 and a processor 620; the memory 610 is configured to store a computer program; and the processor 620 is configured to implement the flood area water conservancy scheduling control method as described above when the computer program is executed.

[0063] The embodiment of the present application provides a computer readable storage medium, and the computer program is stored in the storage medium. When the computer program is executed by a processor, the flood area water conservancy scheduling control method is realized.

[0064] In the embodiment, the electronic device and the computer readable storage medium have similar advantages to the advantages of the flood area water conservancy scheduling control method, and details are not repeated here.

[0065] Electronic devices that can be servers or clients of the present application will now be described, which are examples of hardware devices that can be applied to various aspects of the present application. The electronic device is intended to represent a variety of forms of digital electronic computing devices, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections, and relationships, and their functions, are merely examples and are not intended to limit implementations of the present application described and / or claimed herein.

[0066] The electronic device includes a computing unit that can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded into a random access memory (RAM) from a storage unit. In the RAM, various programs and data required for device operation can also be stored. The computing unit, the ROM, and the RAM are connected to each other through a bus. An input / output (I / O) interface is also connected to the bus.

[0067] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing related hardware through a computer program, and the program can be stored in a computer readable storage medium. When the program is executed, the processes of the above-mentioned embodiments of the method can be included. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. In the present application, the modules described separately can or can not be physically separated. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment of the present application. In addition, the functional modules in each embodiment of the present application can be integrated in one processing unit, or each module can be physically present, or two or more modules can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0068] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0069] The above examples are merely used to illustrate the technical solutions of the present application, but not to limit it; even though the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still make modifications to the technical solutions recorded in the foregoing examples, or make equivalent replacements to 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 embodiments of the present application.

Claims

1. A water conservancy dispatching and control method for flooded areas, characterized in that: include: Determining the undetermined expected water level of the river based on the maximum limit water level of the river in the flood-prone area, the historical rainfall during flood seasons in the flood-prone area, and the maximum water storage capacity of multiple polder areas on the river's cutoff section, where the cutoff section is the river section between the upstream sluice and the downstream sluice, both of which are located at the boundary of the flood-prone area; Determining the final expected water level based on the undetermined expected water level and the minimum water storage capacity of the flood-prone area; determining an expected discharge based on the desired final water level, the current real-time water level of the river, and the average flow-carrying area of ​​the intercepting section in the flood-prone area; The lead time for water conservancy scheduling is obtained based on the expected discharge, the maximum flow at the downstream sluice, the maximum water storage capacity of multiple polder areas on the river's intercepting section, and the predicted evaporation. According to the lead time, the upstream sluice, downstream sluice and polder area water inlet gate are controlled to work together.

2. The water conservancy dispatching and control method for flooded areas according to claim 1, characterized in that: Determining the final expected water level according to the undetermined expected water level and the minimum water storage capacity of the flood-prone area includes: The minimum limit water level is obtained based on the minimum water storage capacity of the flood-prone area and the average flow-carrying area of ​​the intercepting section of the flood-prone area; Determining whether the undetermined expected water level is greater than the minimum limit water level; If the undetermined expected water level is greater than the minimum limit water level, the undetermined expected water level will be used as the final expected water level; If the undetermined expected water level is less than or equal to the minimum limit water level, the undetermined expected water level of the river is re-determined based on the maximum limit water level of the river in the flood-prone area, the historical rainfall in the flood-prone area, the maximum water storage capacity of multiple polder areas on the river's diversion section, and the maximum water storage capacity of the emergency expansion area outside the polder area. The emergency expansion area outside the polder area is a preset planned area outside the polder area that is allowed to be flooded after the polder breaks. Determine whether the re-determined pending expected water level is greater than the minimum limit water level; If the re-determined pending expected water level is greater than the minimum limit water level, the re-determined pending expected water level will be used as the final expected water level; If the re-determined pending expected water level is still less than or equal to the minimum limit water level, the minimum limit water level will be used as the final expected water level, and the surplus will be determined based on the water level difference between the re-determined pending expected water level and the minimum limit water level.

3. The water conservancy dispatching and control method for flooded areas according to claim 2, characterized in that: The undetermined expected water level is , The re-determined pending expected water level is , in, Indicates the expected water level to be determined. Indicates the re-determined pending expected water level. represents the maximum limit water level of the river in the flood area, H represents the historical rainfall in the flood area, represents the maximum water storage capacity of the i-th polder area on the interception section, n represents the number of polder areas, represents the maximum water storage capacity of the jth emergency expansion area on the interception section, m represents the number of emergency expansion areas, It represents the average flow-carrying area of ​​the intercepting section in the flood-prone area.

4. The water conservancy dispatching and control method for flooded areas according to claim 1, characterized in that: The expected displacement is: , Where Q represents the expected displacement, Indicates the current real-time water level of the river, Indicates the final expected water level, It represents the average flow-carrying area of ​​the intercepting section in the flood-prone area.

5. The water conservancy dispatching and control method for flooded areas according to claim 1, characterized in that: The lead time of water conservancy scheduling is: ， ， ， ， ， ， ， Where T represents the lead time of water conservancy dispatch, Indicates the preset time. It represents the time required for the expected drainage to be discharged from the intercepting section, Q represents the expected drainage volume, represents the number of times water is drained to the i-th polder area, represents the maximum water storage capacity of the i-th polder area on the interception section, n represents the number of polder areas, represents the time required for all water in the i-th polder area to evaporate, q represents the maximum flow at the downstream sluice gate, It represents the time required for all water in the polder area to evaporate. and represent the number of times water is drained to the kth polder area and the number of times water is drained to the rth polder area, respectively. and denote the maximum water storage capacity of the kth polder area and the maximum water storage capacity of the rth polder area, respectively. It represents the absolute time difference between the time required for the water in any two polder areas to evaporate completely, p represents the predicted evaporation amount, and β represents the correction coefficient.

6. The water conservancy dispatching and control method for flooded areas according to claim 1, characterized in that: After obtaining the lead time for water conservancy scheduling based on the expected discharge, the maximum flow at the downstream sluice, the maximum water storage capacity of multiple polder areas on the river's intercepting section, and the predicted evaporation, the following steps are included: According to the preset time step, the lead time of water conservancy scheduling is segmented to obtain multiple time windows; According to meteorological forecast data and multiple time windows, the predicted evaporation corresponding to each time window is determined; When the time required for the water in a polder area to evaporate completely in the previous time window meets the preset conditions, the predicted evaporation amount is updated in the next time window, and the time required for the water in each polder area to evaporate completely and the time required for the water in all polder areas to evaporate completely are corrected.

7. The water conservancy dispatching and control method for flooded areas according to claim 6, characterized in that: The preset conditions are: ， in, represents the number of times the i-th polder area drains water in the x-th time window, represents the predicted evaporation corresponding to the x-th time window, represents the maximum water storage capacity of the i-th polder area on the interception section, represents the preset time step, and x represents the number of time windows.

8. The method for controlling water conservancy dispatch in flooded areas according to claim 6, characterized in that: The time required for the water in each polder area to evaporate after correction: ， ， The time required for all water in the polder area to evaporate after correction: ， in, represents the number of times the i-th polder area drains water in the x-th time window, represents the predicted evaporation corresponding to the x-th time window, represents the maximum water storage capacity of the i-th polder area on the interception section, It represents the time required for all the water in the i-th polder area to evaporate, and β represents the correction coefficient.

9. The method for controlling water conservancy dispatch in flooded areas according to claim 8, characterized in that: The controlling of the upstream sluice, the downstream sluice and the polder area water inlet gate to work in conjunction with each other according to the lead time comprises: Determine the control time point based on the flood prediction time point and lead time in the meteorological forecast data; At the control time point, the upstream sluice gate is controlled to be closed and the downstream sluice gate is fully opened, and the sluice gate of each polder area is controlled to be opened after the water in the polder area has evaporated, and the number of cycles is .

10. A water conservancy dispatching and control system for flooded areas, characterized in that: include: a pending expected water level analysis module, configured to determine the pending expected water level of a river based on the maximum limit water level of the river in the flood-prone area, the historical rainfall during flood seasons in the flood-prone area, and the maximum water storage capacity of multiple polder areas on the river's cutoff section, wherein the cutoff section is the river section between the upstream sluice and the downstream sluice, both of which are located at the boundary of the flood-prone area; A final expected water level analysis module is used to determine the final expected water level based on the to-be-determined expected water level and the minimum water storage capacity of the flood-prone area; an expected discharge analysis module, configured to determine an expected discharge based on the final desired water level, the current real-time water level of the river, and an average flow-carrying area of ​​the intercepting section in the flood-prone area; The lead time analysis module is used to obtain the lead time of water conservancy scheduling based on the expected discharge volume, the maximum flow at the downstream sluice, the maximum water storage capacity of multiple polder areas on the river's intercepting section, and the predicted evaporation; The control module is used to control the upstream sluice, downstream sluice and polder area water inlet gate to work together according to the lead time.

Images