River network water replenishing control system and river network water replenishing control method

Abstract

The invention provides a river network water supplementing control system and a river network water supplementing control method, a river channel monitoring unit respectively monitors respective river channel parameters of a water supplementing communication river channel, a water supplementing output river channel and a water supplementing input river channel, and the river channel parameters comprise the water level, the water quality and the flow rate; the river gate control unit monitors state parameters of an upstream gate and a downstream gate respectively; the intelligent monitoring center stores and processes the river channel parameters and the state parameters; the water supplementing scheduling unit obtains river parameters and state parameters from the intelligent monitoring center, determines a water supplementing scheduling strategy based on the water level, the water quality, the flow and the state parameters, and then generates a gate instruction based on the water supplementing scheduling strategy; and the intelligent monitoring center stores and processes the gate instruction and sends the gate instruction to the river gate control unit, so that the river gate control unit executes the gate instruction to control the respective working states of the upstream gate and the downstream gate. According to the invention, the water flow duration can be prolonged, and the accuracy of gate control is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy projects, and particularly to a river network water replenishment control system and a river network water replenishment control method. Background Art

[0002] In the dry season or when the river has ecological water demand, tidal power can be utilized for ecological water replenishment to maintain the health of the river ecosystem. Utilizing tidal power for ecological water replenishment is a new type of water ecological restoration technology. The core of this technology is to utilize the natural rise and fall of tides and achieve ecological water replenishment for rivers and wetlands by constructing specific water channels and regulation systems. This technology is mainly applied in areas where the river water level fluctuates with the rise and fall of tides (usually located at the river estuary or coastal areas). However, the existing technology for utilizing tidal power for ecological water replenishment usually cannot guarantee the duration of water flow and the gate regulation range is not precise. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a river network water replenishment control system and a river network water replenishment control method to alleviate the above problems existing in the related art.

[0004] In a first aspect, an embodiment of the present invention provides a method for controlling river network water replenishment. The method is applied to a river network water replenishment control system, which includes a water replenishment connecting river channel, an intelligent monitoring center, a river channel monitoring unit, a water replenishment scheduling unit, and a river channel gate control unit connected to the intelligent monitoring center. The upstream end of the water replenishment connecting river channel is used to connect to a water replenishment output river channel, and the downstream end of the water replenishment connecting river channel is used to connect to a water replenishment input river channel. An upstream gate is provided at the upstream end of the water replenishment connecting river channel, and a downstream gate is provided at the downstream end of the water replenishment connecting river channel. The river channel gate control unit is respectively connected to the upstream gate and the downstream gate. The method includes: the river channel monitoring unit respectively monitors the river channel parameters of the water replenishment connecting river channel, the water replenishment output river channel, and the water replenishment input river channel, and sends the river channel parameters to the intelligent monitoring center for storage and processing. Among them, the river channel parameters include water level, water quality, and flow rate. The river channel gate control unit respectively monitors the state parameters of the upstream gate and the downstream gate, and sends the state parameters to the intelligent monitoring center for storage and processing. The state parameters characterize whether the upstream gate and the downstream gate are respectively opened and the opening sizes of the upstream gate and the downstream gate. The water replenishment scheduling unit obtains the river channel parameters and the state parameters from the intelligent monitoring center, determines a water replenishment scheduling strategy based on the water level, the water quality, the flow rate, and the state parameters, then generates a gate command based on the water replenishment scheduling strategy, and sends the gate command to the intelligent monitoring center for storage and processing. The intelligent monitoring center sends the gate command to the river channel gate control unit, so that the river channel gate control unit executes the gate command to control the working states of the upstream gate and the downstream gate respectively.

[0005] Second aspect, an embodiment of the present invention further provides a river network water replenishment control system, which includes a water replenishment connecting channel, an intelligent monitoring center, and a river channel monitoring unit, a water replenishment scheduling unit, and a river channel gate control unit connected to the intelligent monitoring center; the upstream end of the water replenishment connecting channel is used to connect to a water replenishment output channel, and the downstream end of the water replenishment connecting channel is used to connect to a water replenishment input channel; an upstream gate is provided at the upstream end of the water replenishment connecting channel, and a downstream gate is provided at the downstream end of the water replenishment connecting channel; the river channel gate control unit is respectively connected to the upstream gate and the downstream gate; the river channel monitoring unit is used to respectively monitor the river channel parameters of the water replenishment connecting channel, the water replenishment output channel, and the water replenishment input channel, and send the river channel parameters to the intelligent monitoring center for storage and processing; wherein, the river channel parameters include water level, water quality, and flow rate; the river channel gate control unit is used to respectively monitor the state parameters of the upstream gate and the downstream gate, and send the state parameters to the intelligent monitoring center for storage and processing; the state parameters characterize whether the upstream gate and the downstream gate are respectively opened and the opening degrees of the upstream gate and the downstream gate; the water replenishment scheduling unit is used to obtain the river channel parameters and the state parameters from the intelligent monitoring center, determine a water replenishment scheduling strategy based on the water level, the water quality, the flow rate, and the state parameters, then generate a gate command based on the water replenishment scheduling strategy, and send the gate command to the intelligent monitoring center for storage and processing; the intelligent monitoring center is used to send the gate command to the river channel gate control unit; the river channel gate control unit is used to execute the gate command to control the working states of the upstream gate and the downstream gate respectively.

[0006] A river network water replenishment control system and a river network water replenishment control method provided by an embodiment of the present invention. The upstream end of the water replenishment connecting river is used to connect with the water replenishment output river, and the downstream end of the water replenishment connecting river is used to connect with the water replenishment input river; an upstream gate is arranged at the upstream end of the water replenishment connecting river, and a downstream gate is arranged at the downstream end of the water replenishment connecting river; the river gate control unit is respectively connected with the upstream gate and the downstream gate; the river monitoring unit respectively monitors the river parameters of the water replenishment connecting river, the water replenishment output river, and the water replenishment input river, and the river parameters include water level, water quality, and flow rate; the river gate control unit respectively monitors the state parameters of the upstream gate and the downstream gate; the intelligent monitoring center stores and processes the river parameters and state parameters; the water replenishment scheduling unit obtains the river parameters and state parameters from the intelligent monitoring center, determines a water replenishment scheduling strategy based on the water level, water quality, flow rate, and state parameters, and then generates a gate instruction based on the water replenishment scheduling strategy; the intelligent monitoring center stores and processes the gate instruction, and sends the gate instruction to the river gate control unit, so that the river gate control unit executes the gate instruction to control the working states of the upstream gate and the downstream gate respectively. By adopting the above technology, the automatic control of the gate can be realized by integrating tidal power with real-time river monitoring data and gate state data, and then effective water replenishment can be provided for the river that needs water replenishment through the water collection function of the water replenishment connecting river. Since the adopted gate control mechanism is relatively sensitive, the rapid response of water replenishment control can be achieved, thereby prolonging the water flow duration, and the gate control is relatively accurate. Even under small tidal differences, the real-time river monitoring data and gate state data can be used for water replenishment, which is beneficial to maintaining the health of the river ecosystem.

[0007] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures specifically pointed out in the specification, the claims, and the drawings.

[0008] To make the above objectives, features, and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, provides a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are 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.

[0010] Figure 1 It is a schematic structural diagram of a river network water replenishment control system in an embodiment of the present invention;

[0011] Figure 2 It is a schematic flow chart of a river network water replenishment control method in an embodiment of the present invention;

[0012] Figure 3 It is a schematic structural diagram of another river network water replenishment control system in an embodiment of the present invention;

[0013] Figure 4 It is an example diagram of an application scenario of a river network water replenishment control method in an embodiment of the present invention;

[0014] Figure 5 It is an example diagram of an operation process of a river network water replenishment control system in an embodiment of the present invention;

[0015] Figure 6 It is an example diagram of a process for judging the water level difference and determining the scheduling plan in an embodiment of the present invention. Specific implementation manners

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] Currently, the existing technologies for ecological water replenishment using tidal power usually cannot guarantee the water flow duration and the gate regulation range is not precise. Based on this, a river network water replenishment control system and a river network water replenishment control method provided by the embodiments of the present invention can alleviate this problem.

[0018] The embodiments of the present invention provide a river network water replenishment control method, which can be applied to a river network water replenishment control system. Refer to Figure 1 As shown, the river network water replenishment control system may include a water replenishment connecting river channel 10, an intelligent monitoring center 20, and a river channel monitoring unit 30, a water replenishment scheduling unit 40, and a river channel gate control unit 50 connected to the intelligent monitoring center 20; the upstream end of the water replenishment connecting river channel 10 is used to connect to a water replenishment output river channel 60, and the downstream end of the water replenishment connecting river channel 10 is used to connect to a water replenishment input river channel 70; an upstream gate 11 is provided at the upstream end of the water replenishment connecting river channel 10, and a downstream gate 12 is provided at the downstream end of the water replenishment connecting river channel 10; the river channel gate control unit 50 is respectively connected to the upstream gate 11 and the downstream gate 12. Refer to Figure 2 As shown, the river network water replenishment control method may include the following steps:

[0019] Step S202: The river channel monitoring unit 30 monitors the respective river channel parameters of the water replenishment connection river channel 10, the water replenishment output river channel 60, and the water replenishment input river channel 70, and sends the river channel parameters to the intelligent monitoring center 20 for storage and processing.

[0020] Among them, the river channel parameters may include water level, water quality, flow rate, rainfall, etc., and are not limited thereto.

[0021] Step S204: The river channel gate control unit 50 monitors the respective status parameters of the upstream gate 11 and the downstream gate 12, and sends the status parameters to the intelligent monitoring center 20 for storage and processing.

[0022] Among them, the status parameters may refer to parameters indicating whether the gate is opened, the opening degree of the gate, etc., and are not limited thereto.

[0023] Step S206: The water replenishment scheduling unit 40 obtains the river channel parameters and status parameters from the intelligent monitoring center 20, determines the water replenishment scheduling strategy based on the water level, water quality, flow rate and status parameters, then generates a gate command based on the water replenishment scheduling strategy, and sends the gate command to the intelligent monitoring center 20 for storage and processing.

[0024] Step S208: The intelligent monitoring center 20 sends the gate command to the river channel gate control unit 50, so that the river channel gate control unit 50 executes the gate command to control the respective working states of the upstream gate 11 and the downstream gate 12.

[0025] After storing and processing the received gate command, the intelligent monitoring center 20 can transmit the gate command to the river channel gate control unit 50, so that the river channel gate control unit 50 executes the gate command to control the opening / closing and opening degree of the upstream gate 11 and the downstream gate 12 respectively.

[0026] A river network water replenishment control method provided by an embodiment of the present invention. The upstream end of the water replenishment connecting river is used to connect with the water replenishment output river, and the downstream end of the water replenishment connecting river is used to connect with the water replenishment input river; an upstream gate is arranged at the upstream end of the water replenishment connecting river, and a downstream gate is arranged at the downstream end of the water replenishment connecting river; the river gate control unit is respectively connected to the upstream gate and the downstream gate; the river monitoring unit respectively monitors the river parameters of the water replenishment connecting river, the water replenishment output river, and the water replenishment input river, and the river parameters include water level, water quality, and flow rate; the river gate control unit respectively monitors the state parameters of the upstream gate and the downstream gate; the intelligent monitoring center stores and processes the river parameters and state parameters; the water replenishment scheduling unit obtains the river parameters and state parameters from the intelligent monitoring center, determines a water replenishment scheduling strategy based on the water level, water quality, flow rate, and state parameters, and then generates a gate command based on the water replenishment scheduling strategy; the intelligent monitoring center stores and processes the gate command, and sends the gate command to the river gate control unit, so that the river gate control unit executes the gate command to control the working states of the upstream gate and the downstream gate respectively. By adopting the above technology, the automatic control of the gate can be realized by integrating tidal power, real-time river monitoring data, and gate state data. Furthermore, through the water collection function of the water replenishment connecting river, effective water replenishment can be provided for the rivers that need water replenishment. Since the adopted gate control mechanism is relatively sensitive, the rapid response of water replenishment control can be achieved, thereby prolonging the water flow duration, and the gate control is relatively precise. Even under small tidal differences, the real-time river monitoring data and gate state data can be used for water replenishment, which is beneficial to maintaining the health of the river ecosystem.

[0027] As a possible implementation manner, the determination of the water replenishment scheduling strategy by the water replenishment scheduling unit 40 in the above step S206 based on the water level, water quality, flow rate, and state parameters may include:

[0028] Step 1, based on the water levels of the water replenishment connecting river 10, the water replenishment output river 60, and the water replenishment input river 70 respectively, determine the first water level difference between the water replenishment input river 70 and the water replenishment connecting river 10, the second water level difference between the water replenishment output river 60 and the water replenishment connecting river 10, and the third water level difference between the water replenishment input river 70 and the water replenishment output river 60.

[0029] Exemplarily, it is known that the water levels of the water replenishment connecting river 10, the water replenishment output river 60, and the water replenishment input river 70 are H 10 、H 60 、H 70 respectively. The first water level difference H1 between the water replenishment input river 70 and the water replenishment connecting river 10 is H 70 -H 10 , and the second water level difference H2 between the water replenishment output river 60 and the water replenishment connecting river 10 is H 60 -H 10, the third water level difference H3 between the water supply output channel 60 and the water supply input channel 70 = H 60 -H 70 .

[0030] Step 2: Determine the water supply scheduling strategy based on the first water level difference, the second water level difference, the third water level difference, the state parameters, and the water quality and flow rate of each of the water supply connection channel 10, the water supply output channel 60, and the water supply input channel 70.

[0031] Exemplarily, the state parameters may include the opening and closing states of the upstream gate 11 and the downstream gate 12 respectively, and the opening and closing states can represent whether the upstream gate 11 and the downstream gate 12 are opened or closed; based on this, the above step 2 may include the following operation methods:

[0032] Step 21: If the upstream gate 11 is opened, determine the water supply scheduling strategy as follows: Based on the flow rates of the water supply connection channel 10 and the water supply output channel 60 respectively, determine whether the first event of the water in the water supply connection channel 10 flowing to the water supply output channel 60 occurs; if the first event occurs and the second water level difference H2 is less than 0 and the water level of the water supply output channel 60 is less than the ecological landscape water level of the water supply connection channel 10, then control the upstream gate 11 to close; if the water quality of the water supply input channel 70 does not meet the preset water quality parameters, then control the upstream gate 11 to close.

[0033] Continuing from the previous example, the water supply scheduling unit 40 obtains the water quality data of the water supply input channel 70 and the flow rate data of the water supply connection channel 10 and the water supply output channel 60 from the intelligent monitoring center. The water supply scheduling unit 40 obtains H 10 , H 60 , H 70 and calculates the second water level difference H2 = H 60 -H 10 . Under the condition that the upstream gate 11 is opened, the water supply scheduling unit 40 can determine the water supply scheduling strategy as follows: According to the flow rate values of the water supply connection channel 10 and the water supply output channel 60 respectively, determine whether there is a situation where the water in the water supply connection channel 10 flows to the water supply output channel 60 and H2 is less than 0 and the water level of the water supply output channel 60 is less than the ecological landscape water level of the water supply connection channel 10; if it appears, then control the upstream gate 11 to close; determine whether the water quality of the water supply input channel 70 meets the requirements of ecological water supply. If the water quality of the water supply input channel 70 does not meet the requirements, then control the upstream gate 11 to close.

[0034] Step 22: If the upstream gate 11 is closed, determine the water supply scheduling strategy to control the upstream gate to open when the second water level difference H2 is greater than 0.

[0035] Continuing from the previous example, the water supply scheduling unit 40 calculates the second water level difference H2 = H60 -H 10 Under the condition that the upstream gate is closed, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as follows: judge whether the second water level difference H2 is greater than 0. If H2 is greater than 0, control the upstream gate to open.

[0036] Step 23: If the downstream gate 12 is open, determine the water replenishment scheduling strategy as follows: based on the respective flow rates of the water replenishment connected river channel 10 and the water replenishment input river channel 70, judge whether a second event occurs where the water in the water replenishment input river channel 70 flows into the water replenishment connected river channel 10; if the second event occurs and the first water level difference H1 is greater than 0 and the water level of the water replenishment input river channel 70 is greater than the ecological landscape water level of the water replenishment connected river channel 10, control the downstream gate 12 to close; if the water quality of the water replenishment connected river channel 10 does not meet the preset water quality parameters, control the downstream gate 12 to close.

[0037] Continuing the previous example, the water replenishment scheduling unit 40 obtains the water quality data of the water replenishment connected river channel 10 and the respective flow rate data of the water replenishment connected river channel 10 and the water replenishment input river channel 70 from the intelligent monitoring center. The water replenishment scheduling unit 40 calculates the first water level difference H1 = H 70 -H 10 Under the condition that the downstream gate 12 is open, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as follows: according to the respective flow rate values of the water replenishment connected river channel 10 and the water replenishment input river channel 70, judge whether there is a situation where the water in the water replenishment input river channel 70 flows into the water replenishment connected river channel 10 and H1 is greater than 0 and the water level of the water replenishment input river channel 70 is greater than the ecological landscape water level of the water replenishment connected river channel 10; if so, control the downstream gate 12 to close; judge whether the water quality of the water replenishment connected river channel 10 meets the requirements of ecological water replenishment. If the water quality of the water replenishment connected river channel 10 does not meet the requirements of ecological water replenishment, control the downstream gate 12 to close.

[0038] Step 24: If the downstream gate is closed, determine the water replenishment scheduling strategy as controlling the downstream gate to open when the first water level difference H1 is less than 0.

[0039] Continuing the previous example, the water replenishment scheduling unit 40 calculates the first water level difference H1 = H 70 -H 10 Under the condition that the upstream gate is closed, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as follows: judge whether the first water level difference H1 is less than 0. If H1 is less than 0, control the downstream gate 12 to open.

[0040] As a possible implementation manner, the above step 2 (that is, determining the water replenishment scheduling strategy based on the first water level difference, the second water level difference, the third water level difference and the state parameters, and the respective water quality and flow rates of the water replenishment connected river channel 10, the water replenishment output river channel 60, and the water replenishment input river channel 70) may further include the following operation modes:

[0041] Step 25, if the upstream gate 11 and the downstream gate 12 are opened, then determine the water replenishment scheduling strategy as: if both the second water level difference H2 and the third water level difference H3 are greater than 0 and the water level of the water replenishment connecting channel 10 is the ecological landscape water level of the water replenishment connecting channel 10, then control the upstream gate 11 and the downstream gate 12 to close.

[0042] Continuing the previous example, the water replenishment scheduling unit 40 calculates the second water level difference H2 = H 60 -H 10 and the third water level difference H3 = H 60 -H 70 , under the condition that the upstream gate 11 and the downstream gate 12 are opened, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as: judge whether both H2 and H3 are greater than 0 and the water level of the water replenishment connecting channel 10 is the ecological landscape water level of the water replenishment connecting channel 10; if so, then control the upstream gate 11 and the downstream gate 12 to close.

[0043] Step 26, if the upstream gate 11 and the downstream gate 12 are closed, then determine the water replenishment scheduling strategy as: if both the first water level difference H1 and the second water level difference H2 are less than 0 and the water levels of the water replenishment input channel 70 and the water replenishment output channel 60 are both in an increasing state, then control the upstream gate 11 and the downstream gate 12 to open.

[0044] Continuing the previous example, the water replenishment scheduling unit 40 calculates the first water level difference H1 = H 70 -H 10 and the second water level difference H2 = H 60 -H 10 , under the condition that the upstream gate 11 and the downstream gate 12 are closed, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as: judge whether both H1 and H2 are less than 0 and the water levels of the water replenishment input channel 70 and the water replenishment output channel 60 are both in an increasing state (that is, the water level of the water replenishment output channel 60 and the water level of the water replenishment input channel 70 are both less than the water level of the water replenishment connecting channel 10 and in the flood tide stage), if so, then control the upstream gate 11 and the downstream gate 12 to open.

[0045] As a possible implementation manner, the above-mentioned river channel parameters may further include rainfall; based on this, the above-mentioned river network water replenishment control method may further include: determining the water replenishment scheduling strategy based on the first water level difference H1, the second water level difference H2, the state parameters, and the rainfall of the water replenishment connecting channel 10, the water replenishment output channel 60, and the water replenishment input channel 70 respectively.

[0046] Continuing the previous example, the water replenishment scheduling unit 40 obtains the water quality data of the water replenishment input channel 70 and the rainfall data of the water replenishment connecting channel 10 and the water replenishment output channel 60 respectively from the intelligent monitoring center, and the water replenishment scheduling unit 40 obtains H 10 、H60 and calculate the first water level difference H1 = H 70 minus H 70 -H 10 and the second water level difference H2 = H 60 minus H 10 If the upstream gate 11 and the downstream gate 12 are closed, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as follows: If the rainfall in the water replenishment input channel 70 is less than the rainfall in the water replenishment connected channel 10 and both the first water level difference H1 and the second water level difference H2 are less than 0 and the water level of the water replenishment connected channel 10 is greater than the ecological landscape water level of the water replenishment connected channel 10, then control the upstream gate 11 and the downstream gate 12 to open; If the rainfall in the water replenishment connected channel 10 is not less than the rainfall in the water replenishment input channel 70 and both the first water level difference H1 and the second water level difference H2 are less than 0, then control the upstream gate 11 and the downstream gate 12 to open.

[0047] If the upstream gate 11 and the downstream gate 12 are open, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as follows: If the rainfall in the water replenishment input channel 70 or the water replenishment output channel 60 is greater than the rainfall in the water replenishment connected channel 10 and both the first water level difference H1 and the second water level difference H2 are greater than 0, then control the upstream gate 11 and the downstream gate 12 to close; If the rainfall in the water replenishment input channel 70 or the water replenishment output channel 60 is not less than 0 and less than the rainfall in the water replenishment connected channel 10 and both the first water level difference H1 and the second water level difference H2 are greater than 0, then control the upstream gate 11 and the downstream gate 12 to close.

[0048] As a possible implementation, the flow of the water replenishment connected channel 10 may include the upstream end flow and the downstream end flow of the water replenishment connected channel 10; Based on this, the water replenishment scheduling strategy determined by the water replenishment scheduling unit 40 in the above step S206 based on water level, water quality, flow rate and status parameters may further include:

[0049] Step A1, based on the upstream end flow and the downstream end flow, determine whether a third event occurs in which the water in the water replenishment connected channel 10 flows in the direction opposite to its flow direction.

[0050] Step A22, if the upstream gate 11 and the downstream gate 12 are closed, determine the water replenishment scheduling strategy to control the upstream gate 11 and the downstream gate 12 to open when the third water level difference reaches the preset water level difference threshold.

[0051] Step A23, if the upstream gate and the downstream gate are open, determine the water replenishment scheduling strategy to control the upstream gate and the downstream gate to close when the third event occurs.

[0052] Continuing with the previous example, the water replenishment scheduling unit 40 obtains the upstream end flow data and downstream end flow data of the water replenishment connecting river channel 10 from the intelligent monitoring center and uses this part of the flow data to determine whether the water in the water replenishment connecting river channel 10 flows in the direction opposite to its flow direction. The water replenishment scheduling unit 40 calculates the third water level difference H3 = H 60 -H 70 , under the condition that the upstream gate 11 and the downstream gate 12 are closed, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as follows: determine whether H3 reaches the preset water level difference threshold. If H3 reaches the preset water level difference threshold, then control the upstream gate 11 and the downstream gate 12 to open. Under the condition that the upstream gate 11 and the downstream gate 12 are open, the water replenishment scheduling unit 40 can determine the water replenishment scheduling strategy as follows: when the water in the water replenishment connecting river channel 10 starts to flow in the direction opposite to its flow direction (such as when the upstream end flow is equal to or even less than the downstream end flow), control the upstream gate 11 and the downstream gate 12 to close.

[0053] As a possible implementation manner, as shown in Figure 3 , the river network water replenishment control system may further include a meteorological server 100 connected to the intelligent monitoring center 20; based on this, the river network water replenishment control method may further include the following steps:

[0054] Step B1, the meteorological server 100 obtains meteorological warning data and sends the meteorological warning data to the intelligent monitoring center 20 for storage and processing.

[0055] Among them, the meteorological warning data may include rainfall prediction data.

[0056] Step B2, the intelligent monitoring center 20 obtains the historical data of the water replenishment connecting river channel 10, the water replenishment output river channel 60, and the water replenishment input river channel 70 respectively, and uses the time series decomposition method to decompose the historical data into trend components, seasonal components, and residual components.

[0057] Among them, the historical data may include historical water level data and historical rainfall data.

[0058] Step B3, the water replenishment scheduling unit 40 obtains the trend component, seasonal component, historical data, and meteorological warning data from the intelligent monitoring center 20, determines the predicted water levels of the water replenishment connecting river channel 10, the water replenishment output river channel 60, and the water replenishment input river channel 70 respectively in the future time period based on the trend component, seasonal component, historical data, and meteorological warning data, and then adjusts the water replenishment scheduling strategy based on the predicted water levels.

[0059] Exemplarily, the calculation method of the predicted water level can adopt the method of combining time series decomposition and exponential smoothing to calculate the water level in the future period of time. The specific calculation method is as follows:

[0060] Use time series decomposition techniques to decompose historical data into three main components: a trend component (reflecting long-term upward or downward trends), a seasonal component (capturing periodic fluctuations, such as daily, weekly, or annual patterns), and a residual component (representing random noise or other variations not explained by the first two components);

[0061] The formula for predicting water level:

[0062] H t = α·(H t-1 + λ·R t + β t ·I t + γ·D t )+(1 - α)·(T t + S t )

[0063] Where:

[0064] H t is the predicted water level at the current time point t;

[0065] H t-1 is the actual water level at the previous time point t - 1;

[0066] R t is the rainfall at the current time point t;

[0067] λ is the coefficient of the impact of rainfall on water level, and its value is determined according to the characteristics of the river basin. Based on the historical rainfall and water level change data collected from the river, with rainfall as the independent variable and water level change as the dependent variable, a regression model is selected and determined using the least squares method, etc. Other historical data can be used to verify the prediction effect of the regression model, calculate the error to evaluate the accuracy of λ, and adjust the parameters of the regression model according to the verification results to improve the accuracy of λ. Influence of rainfall data: The predicted future rainfall in the meteorological warning data can be used as an input parameter. High rainfall intensity and long-term rainfall will accelerate the rise of the water level, and the rate of water level change can be adjusted according to the input parameter;

[0068] I t is the rainfall intensity at the current time point t;

[0069] β is the coefficient of the impact of rainfall intensity on water level, and its value is determined by establishing a regression model with rainfall intensity as the independent variable and water level change as the dependent variable by collecting rainfall intensity and corresponding water level change data. Similarly, it is necessary to verify the effect of the regression model, calculate the error to evaluate the accuracy of β, and optimize the parameters of the regression model;

[0070] D t is the rainfall duration at the current time point t;

[0071] γ is the coefficient of the influence of rainfall duration on water level. Its value is determined by collecting data on rainfall duration and corresponding water level changes, establishing a regression model with rainfall duration as the independent variable and water level change as the dependent variable. After verifying the effect of the regression model, it is necessary to calculate the error to evaluate the accuracy of γ and optimize the parameters of the regression model;

[0072] α is the smoothing coefficient, which determines the importance of new data points and takes values between 0 and 1. The closer it is to 1, the greater the weight of the new data point and the faster the influence of the old data decays;

[0073] T s is the trend value of the current time point t extracted from the trend component;

[0074] S t is the seasonal value of the current time point t extracted from the seasonal component.

[0075] After the water supply scheduling unit 40 calculates the water level data of the water supply connecting channel 10, the water supply output channel 60, and the water supply input channel 70 in the future for a period of time, it can adjust the water supply scheduling strategy based on this part of the water level data, so as to control the working state of the gate based on the adjusted water supply scheduling strategy later, thereby ensuring that the gate control is more in line with the actual rainfall situation and improving the rationality of the gate control.

[0076] As a possible implementation manner, the state parameter may further include the health states of the upstream gate 11 and the downstream gate 12 respectively, and the health state can characterize the structural features of the upstream gate 11 and the downstream gate 12 respectively; for example, the health state may include the seepage pressure of the stilling basin section, the seepage pressure of the gate chamber section, the seepage pressure of the culvert section, the crack measurement at the front section of the culvert section, the crack measurement at the rear section of the culvert section, the seepage pressure of the maintenance gate slot section, the water gate deformation monitoring data, the water gate displacement monitoring data, etc., and there is no limitation thereto. Based on this, the above river network water supply control method may further include: the river channel gate control unit 50 triggers an alarm for the target gate when it monitors that the health state of the target gate exceeds the preset health state threshold; wherein, the target gate may include the upstream gate 11 and / or the downstream gate 12.

[0077] Exemplarily, after the river channel gate control unit 50 monitors the health state of a certain gate, it judges whether the health state of the gate exceeds the safety setting value. If the health state of the gate exceeds the safety setting value, it triggers an alarm for the gate to remind relevant personnel to repair the gate.

[0078] As a possible implementation manner, the above river network water supply control method may further include: the river channel gate control unit 50 monitors the execution status of the gate command and feeds back the execution status to the intelligent monitoring center 20 for processing and recording.

[0079] Exemplarily, after receiving the gate instruction sent by the intelligent monitoring center 20, the river channel gate control unit 50 will execute the gate instruction and monitor the execution status of the gate instruction in real time (such as execution failure, in progress, execution completed, etc.). Then, it will feedback the execution status of the gate instruction to the intelligent monitoring center 20, so that the intelligent monitoring center 20 can process and record the execution status of the gate instruction, and further facilitate relevant personnel to perform manual intervention operations in the intelligent monitoring center 20 according to the execution status of the gate instruction by the river channel gate control unit 50, thus helping to ensure the accuracy and real-time nature of gate control.

[0080] As a possible implementation manner, the generation of the gate instruction by the water replenishment scheduling unit 40 in the above step S206 may include:

[0081] Step a1, if the water replenishment scheduling strategy controls the upstream gate 11 to close, then generate a first gate instruction for controlling the upstream gate 11 to close.

[0082] Step a2, if the water replenishment scheduling strategy controls the upstream gate 11 to open, then generate a second gate instruction for controlling the upstream gate 11 to open.

[0083] Step a3, if the water replenishment scheduling strategy controls the downstream gate 12 to close, then generate a third gate instruction for controlling the downstream gate 12 to close.

[0084] Step a4, if the water replenishment scheduling strategy controls the downstream gate 12 to open, then generate a fourth gate instruction for controlling the downstream gate 12 to open.

[0085] For the sake of easy understanding, the operation mode of the above river network water replenishment control method is described exemplarily with a specific application as follows.

[0086] See Figure 1 、 Figure 3 and Figure 4 As shown, an upstream gate 11 is built at the upstream end of the water replenishment connection river channel 10 and equipped with a gate automatic control system, a downstream gate 12 is built at the downstream end of the water replenishment connection river channel 10 and equipped with a gate automatic control system. The upstream end of the water replenishment connection river channel 10 is connected to the water replenishment output river channel 60 through the upstream gate 11, and the downstream end of the water replenishment connection river channel 10 is connected to the water replenishment input river channel 70 through the downstream gate 12; river channel sensors 31 (including water quality sensors, water level sensors, water volume sensors) are arranged in the water replenishment connection river channel 10, the water replenishment output river channel 60 and the water replenishment input river channel 70; the equipped gate automatic control system forms the river channel gate control unit 50 ( Figure 4(not shown in the figure), the intelligent monitoring center 20 is respectively connected to the upstream gate 11 and the downstream gate 12 through the river channel gate control unit 50. The intelligent monitoring center 20 is also connected to a data processing center 90 (belonging to the water replenishment scheduling unit 40). The data processing center 90 is connected to each river channel sensor 31 through the data acquisition center 80. The intelligent monitoring center 20 is also connected to the water replenishment scheduling unit 40 ( Figure 4 not shown in the figure) and the meteorological server 100.

[0087] Among them, the water replenishment connecting river channel 10 is a river channel connecting the water replenishment input river channel 70 and the water replenishment output river channel 10. In addition to being used to connect the river channels that need water replenishment (i.e., the water replenishment input river channel 70) and the water replenishment output river channel 60, the water replenishment connecting river channel 10 can also be used to collect the rainwater on both sides of the river channel to replenish the river channels that need water replenishment.

[0088] See Figure 4 As shown, the implementation methods of the above river network water replenishment control method mainly include:

[0089] The water replenishing and connecting channel 10 collects the rainwater from the river networks on both sides of the channel. The channel sensor 31 is used to transmit the data such as the real-time monitored channel water quality, water level, water volume, and rainfall to the data acquisition center 80. The data processing center 90 processes the real-time channel monitoring data in combination with the original historical channel water level data of the data acquisition center 80. After the data processing center 90 finishes processing the data, it sends instructions to the intelligent monitoring center 20. Finally, through the intelligent monitoring center 20, the opening and closing and the opening degree of the upstream gate 11 and the downstream gate 12 are controlled respectively to achieve fully intelligent and precise ecological water replenishing scheduling. Water is replenished from the water replenishing input channel 70 to the water replenishing and connecting channel 10 and the river networks on both sides of the channel, and is output through the water replenishing output channel 60 to form flowing water. The data processing center 90 establishes a real-time data interface connection with the data server of the meteorological department (i.e., the meteorological server 100) to obtain the latest meteorological prediction information (i.e., meteorological early warning data). Subsequently, the data processing center 90 analyzes the obtained meteorological early warning data, extracts the required content and integrates it into the system database, and then integrates the meteorological early warning data with the real-time channel monitoring data to form a comprehensive judgment and prediction of the channel water situation. If the weather forecast predicts a large rainfall, the intelligent monitoring center 20 will adjust the opening degree of the gate in advance to prevent floods or waterlogging. Through the intelligent monitoring center 20, the opening and closing and the opening degree of the upstream gate 11 and the downstream gate 12 are controlled respectively to achieve fully intelligent and precise drainage scheduling for the water replenishing input channel 70 and the water replenishing output channel 60. The channel sensor is used to transmit the data such as the real-time monitored channel water level, water volume, and rainfall to the data acquisition center, and the data processing center 90 processes the real-time channel monitoring data in combination with the meteorological forecast data. After the data processing center 90 finishes processing the data, it sends instructions to the intelligent monitoring center 20. Through the intelligent monitoring center 20, the opening and closing and the opening degree of the upstream gate 11 and the downstream gate 12 are controlled respectively to achieve fully intelligent and precise flood prevention scheduling for the connecting channel.

[0090] See Figure 4 and Figure 5 As shown, the channel gate control unit 50 can be used to control the opening, closing and adjusting the opening degree of the gates (i.e., the upstream gate 11 and the downstream gate 12). The channel gate control unit 50 can include a local control module, a remote control module and a safety monitoring module.

[0091] The local control module is located at the gate site and is used to directly control the opening and closing actions of the gate. This module is equipped with a manual operation interface and an automatic control function, which can achieve precise operation of the gate on-site and support the manual / auto switching mode to meet the requirements of different working conditions.

[0092] The remote control module is connected to the intelligent monitoring center 20 through a communication network, and is used to realize the remote monitoring and control of the gate. This module supports real-time data transmission, can receive instructions from the intelligent monitoring center 20 and execute the opening, closing and opening degree adjustment operations of the gate. At the same time, the remote control module has a fault diagnosis function and can switch to the safe mode in case of communication interruption or abnormality.

[0093] The safety monitoring module is used to monitor the health status of the gate and its structure in real time to ensure the safe operation of the system. The monitoring content of this module includes the following health status parameters: seepage pressure in the stilling basin section, seepage pressure in the gate chamber section, seepage pressure in the culvert section, crack measurement in the front section of the culvert section, crack measurement in the rear section of the culvert section, seepage pressure in the maintenance gate slot section, deformation monitoring data of the sluice, displacement monitoring data of the sluice, etc., and triggers the gate alarm in time when abnormalities are found (such as the health status exceeding the safety setting value).

[0094] The working principle of the safety monitoring module mainly includes: the safety monitoring module collects the above health status parameters in real time through the sensor network, and transmits the collected health status parameter data to the monitoring system. The monitoring system judges whether the health status parameters exceed the normal range according to the preset safety threshold. If any health status parameter is found to exceed the safety setting value, the monitoring system will automatically trigger the alarm mechanism (that is, trigger the gate alarm when the health status parameter exceeds the safety setting value), and take corresponding safety measures (such as closing the gate or restricting the gate operation) through the remote control module or the local control module to prevent the damage of the gate structure or the occurrence of safety accidents.

[0095] See Figure 4 and Figure 5 As shown, the river channel monitoring unit 30 can be composed of various sensors (i.e., river channel sensors 31) installed on the river channel, devices, data collectors and communication modules; the river channel monitoring unit 30 is used to collect parameters such as water quality, water level, flow rate, rainfall, etc. of the river channel monitored by the river channel sensors 31 in real time through the data collector, and transmit the monitored parameter data to the data processing center 90 for processing through the communication module, and then transmit the data to the intelligent monitoring center 20 through the data processing center 90. For example, the river channel monitoring unit 30 can be composed of a water quality sensor, a water level sensor, a flow rate sensor, a rainfall sensor and a communication module, and is used to collect the water quality, water level, flow rate and rainfall of the corresponding river channel in real time through the water quality sensor, the water level sensor, the rainfall sensor and the flow rate sensor respectively, and transmit the water quality data, water level data, flow rate data and rainfall data to the data processing center 90 for processing and then send them to the intelligent monitoring center 20 for storage and processing.

[0096] See Figure 4 and Figure 5As shown, the river gate control unit 50 can also be used to monitor the status of the gate (such as opening and closing status, opening degree), and transmit the monitored gate status to the intelligent monitoring center 20 for data processing and data storage by the intelligent monitoring center 20.

[0097] See Figure 4 and Figure 5 As shown, the water replenishment scheduling unit 40 is the core component for realizing water replenishment scheduling. The data processing center 90 is responsible for storing data in the database and performing calculation and analysis; the water replenishment scheduling unit 40 is mainly composed of a high-performance operating system software and a professional database software; the function of the water replenishment scheduling unit 40 is to receive the real-time monitoring data of the water level, flow velocity, flow rate, water quality, rainfall, etc. of the inner and outer rivers transmitted by the intelligent monitoring center 20) and the gate status data (such as whether the gate is open or closed, the opening degree of the gate, etc.), and combine the historical river water level data, historical river rainfall data, and meteorological prediction information to achieve precise water replenishment scheduling through the following steps:

[0098] Step S01, water level trend prediction.

[0099] The data processing center 90 uses the time series decomposition method to analyze the historical water level data, combines the real-time monitoring data and meteorological prediction information, and calculates the foresight period water level to predict the water level change trend in the future for a period of time. By decomposing the historical water level data into trend components, seasonal components, and residual components, the accuracy and reliability of water level prediction are improved.

[0100] Step S02, water level difference calculation and analysis.

[0101] The data processing center 90 calculates the water level differences between the water replenishment input river 70, the water replenishment output river 60, and the water replenishment connecting river 10, including the water level difference (H3) between the water replenishment output river 60 and the water replenishment input river 70, the water level difference (H1) between the water replenishment input river 70 and the water replenishment connecting river 10, and the water level difference (H2) between the water replenishment output river 60 and the water replenishment connecting river 10, analyzes the change trends of these water level differences, and judges whether the water replenishment conditions are met.

[0102] Step S03, water quality assessment.

[0103] The data processing center 90 judges whether the water replenishment quality meets the requirements of ecological water replenishment according to the real-time monitored water quality data. If the water quality does not meet the standard (that is, it does not meet the requirements of ecological water replenishment), the system will automatically adjust the water replenishment scheduling plan (that is, the water replenishment scheduling strategy) to avoid adverse effects on the river ecosystem.

[0104] Step S04, optimization of the water replenishment scheduling plan.

[0105] Based on the ecological water replenishment scheduling operation rules, the data processing center 90 comprehensively considers factors such as water level trend, water level difference, water quality, and rainfall, and determines whether the water level difference is within the water replenishment level difference range, and then generates an optimal water replenishment scheduling plan. The water replenishment scheduling plan includes the opening, closing, and opening degree adjustment of the gates.

[0106] The data processing center 90 determines whether the real-time monitoring data such as water quality, water level, flow rate, rainfall, and the gate status are within the water replenishment scheduling plan. If so (that is, the real-time monitoring data and the gate status are within the water replenishment scheduling plan), then proceed to step S05. If not (that is, the real-time monitoring data and the gate status are not within the water replenishment scheduling plan), an alarm is sent to the intelligent monitoring center 20 so that the intelligent monitoring center 20 can handle and record the situation.

[0107] Step S05, instruction generation and transmission.

[0108] According to the optimized water replenishment scheduling plan, specific gate control instructions are generated and transmitted to the river channel gate control unit 50 through the communication network, so that the river channel gate control unit 50 can execute the gate instructions to control the opening, closing, and opening degree of the gates, thereby achieving precise control of the gates. At the same time, the system has a real-time feedback mechanism, which can dynamically adjust the water replenishment scheduling plan according to the real-time monitoring data to ensure the flexibility and adaptability of the system.

[0109] Step S06, safety and early warning mechanism.

[0110] During the water replenishment scheduling process, the system real-time monitors the changes in water level, flow rate, and rainfall, and combines the health status parameters collected by the safety monitoring module to evaluate the operation safety of the system. If abnormal situations are found (such as the water level exceeding the safety range or equipment failures), the system will automatically trigger the early warning mechanism and adjust the water replenishment scheduling plan to ensure safety.

[0111] The water replenishment level difference range is a key parameter for controlling the water replenishment process, mainly including the highest control water level for water replenishment, the lowest operating water level, etc. The water replenishment level difference range is determined by comprehensively analyzing the following data: the respective annual water level data of the water replenishment input river channel 70 and the water replenishment output river channel 60 (including the average high tide level, average low tide level, and historical highest / lowest water levels) and the designed water level of the water replenishment connecting river channel 10 (that is, the water level range that can ensure the safe operation of the water replenishment connecting river channel 10 determined according to the engineering design parameters of the water replenishment connecting river channel 10).

[0112] Determine the range of the water replenishment water level difference through comprehensive analysis of the above data to ensure that the water replenishment process can not only meet the ecological needs but also guarantee the safe operation of the system. The highest control water level for water replenishment can be determined based on the average high tide level of the water replenishment input river channel 70 and the water replenishment connection river channel 10 combined with the safety margin designed for the system; the lowest operating water level can be determined according to the average low tide level of the water replenishment output river channel 60 and the water replenishment connection river channel 10 as well as the water replenishment demand.

[0113] To achieve real-time monitoring of the river channel water level, the system installs two high-precision water level sensors at the key cross-sections of the water replenishment input river channel 70, the water replenishment output river channel 60, and the water replenishment connection river channel 10 respectively, with a total of six water level sensors, ensuring that the water level changes can be comprehensively monitored. These water level sensors are used to collect the water level data of the three river channels in real time and serve as the real-time data input for the system operation. The collected water level data is transmitted to the intelligent monitoring center 20 in real time through the communication module and stored in the database for subsequent water level prediction, water replenishment scheduling plan generation, and historical data analysis.

[0114] To accurately monitor the water replenishment flow rate, the system arranges one radar flowmeter at each of the upstream gate 11 and the downstream gate 12 of the water replenishment connection river channel 10, with a total of two. These radar flowmeters are used to measure the water flow velocity and flow rate in real time, providing key data support for the formulation of the water replenishment scheduling plan. The data collected by the radar flowmeters is also transmitted to the intelligent monitoring center 20 in real time through the communication module and stored in the database for real-time water replenishment scheduling and historical data analysis.

[0115] See Figure 6 As shown, when conducting ecological water replenishment for the water replenishment connection river channel 10 during the dry season, according to the set water level prediction time parameter and the water level foresight period (such as 12 hours, 24 hours, etc.), calculate the water level within the foresight period and calculate the water level difference within the foresight period, and then specify the water replenishment scheduling plan within the foresight period based on the predicted water level difference. The water replenishment scheduling plan during ecological water replenishment is as follows:

[0116] (a1) Control the gate to be fully closed: H 70 >H 60 >H 10 = The ecological landscape water level of the water replenishment connection river channel 10, that is, when the water level during high tide exceeds the water replenishment connection river channel 10, the states of the upstream and downstream gates are both in the closed state.

[0117] (a2) Control the gate to be fully open: When H1 < 0, H2 < 0 and H 70 , H 60 are all increasing, that is, when H 70 and H 60 are both less than H 10 and it is in the rising tide stage, issue an instruction to open the upstream and downstream gates, allowing water to flow from the water replenishment connection river channel 10 to the water replenishment output river channel 60 and the water replenishment input river channel 70 respectively.

[0118] (a3) For the case where the downstream gate 12 is in the open state: Based on the flow rate value monitored by the radar flowmeter at the downstream gate 12, determine whether the water replenished into the river channel 70 flows towards the water replenishment connecting channel 10 and H1 > 0 and H 70 is greater than the ecological landscape water level of the water replenishment connecting channel 10; if so, issue a downstream gate closing instruction.

[0119] (a4) For the case where the upstream gate 11 is in the open state:

[0120] Based on the flow rate value monitored by the radar flowmeter at the upstream gate 11, determine whether the water in the water replenishment connecting channel 10 flows towards the water replenishment output channel 60 and H2 < 0 and H 60 is less than the ecological landscape water level of the water replenishment connecting channel 10; if so, issue an upstream gate closing instruction.

[0121] See Figure 6 As shown, during flood control of the river channel, the water replenishment scheduling plan is as follows:

[0122] (b1) Control the gates to be fully open: According to the data of the rain gauge sensor, when the rainfall in the water replenishment input channel 70 and the rainfall in the water replenishment output channel 60 are both less than the rainfall in the water replenishment connecting channel 10 and H1 < 0, H2 < 0, and H 10 is greater than the ecological landscape water level of the water replenishment connecting channel 10, that is, when floods occur in the outer river of the river network, heavy rain occurs simultaneously in the river network, and the water level in the river network is higher than the respective water levels of the water replenishment input channel 70 and the water replenishment output channel 60 of the outer river, the gates are fully open.

[0123] (b2) Control the gates to be fully closed: According to the data of the rain gauge sensor, when the rainfall in the water replenishment input channel 70 or the rainfall in the water replenishment output channel 60 is greater than the rainfall in the water replenishment connecting channel 10 and H1 > 0, H2 > 0, the gates are fully closed; according to the data of the rain gauge sensor, when the rainfall in the water replenishment input channel 70 or the rainfall in the water replenishment output channel 60 is not less than 0 and less than the rainfall in the water replenishment connecting channel 10 and H1 > 0, H2 > 0, the gates are fully closed.

[0124] (b3) Control the gates to be fully closed: According to the meteorological prediction information, if heavy rainfall is about to occur upstream of the water replenishment input channel 70 and / or upstream of the water replenishment output channel 60, which may cause a significant rise in the water level of the water replenishment input channel 70 and / or the water replenishment output channel 60, the gates are fully closed.

[0125] See Figure 6As shown in the figure, during the flood season when draining water from the river channel, the water replenishment scheduling plan is as follows: According to the data of the rain gauge sensor, when the rainfall in the water replenishment connected river channel 10 is not less than the rainfall in the water replenishment input river channel 70 or the rainfall in the water replenishment output river channel 60, and H1 < 0, H2 < 0, that is, when it rains in the river network and the water level in the river network is higher than the water levels of the water replenishment input river channel 70 and the water replenishment output river channel 60 of the outer river, the sluice gates are fully opened.

[0126] See Figure 6 As shown in the figure, during the dry season, the process of the water replenishment scheduling unit 40 judging the water level difference and determining the scheduling plan mainly includes:

[0127] (A1) When both the upstream sluice gate 11 and the downstream sluice gate 12 are in the closed state, there are the following two operation modes:

[0128] (A11) Judge the water level difference relationship between the water replenishment input river channel 70 and the water replenishment connected river channel 10. When H1 is less than 0 (that is, the water level of the water replenishment input river channel 70 is less than the water level of the water replenishment connected river channel 10), send a sluice gate command to open the downstream sluice gate 12 to the river channel sluice gate control unit 50 through the intelligent monitoring center 20 to open the downstream sluice gate 12 to allow water to flow from the water replenishment connected river channel 10 to the water replenishment input river channel 70; when H1 is greater than 0 (that is, the water level of the water replenishment input river channel 70 is greater than the water level of the water replenishment connected river channel 10), the downstream sluice gate is not opened, and the step of sending a sluice gate command to open the downstream sluice gate 12 to the river channel sluice gate control unit 50 through the intelligent monitoring center 20 is not carried out.

[0129] (A12) Judge the water level difference relationship between the water replenishment output river channel 60 and the water replenishment connected river channel 10. When H2 is greater than 0 (that is, the water level of the water replenishment output river channel 60 is greater than the water level of the water replenishment connected river channel 10), send a sluice gate command to open the upstream sluice gate 11 to the river channel sluice gate control unit 50 through the intelligent monitoring center 20, so that the river channel sluice gate control unit 50 can execute the sluice gate command to open the downstream sluice gate 12 to allow water to flow from the water replenishment output river channel to the water replenishment connected river channel; when H2 is less than 0 (that is, the water level of the water replenishment output river channel 60 is less than the water level of the water replenishment connected river channel 10), the upstream sluice gate 11 is not opened, and the step of sending a sluice gate command to open the upstream sluice gate 11 to the river channel sluice gate control unit 50 through the intelligent monitoring center 20 is not carried out.

[0130] (A2) When the downstream sluice gate 12 is in the open state, there is the following operation mode:

[0131] Based on the flow value monitored by the radar flowmeter of the downstream gate 12, it is determined whether there is a situation where the water replenished into the river channel 70 flows into the water replenishment connection channel 10. If this situation occurs and H1 is greater than 0 (i.e., the water level of the water replenishment input channel 70 is higher than the water level of the water replenishment connection channel 10), then a gate command to close the downstream gate 12 is sent to the river channel gate control unit 50 through the intelligent monitoring center 20, so that the river channel gate control unit 50 can execute the gate command to close the downstream gate 12.

[0132] (A3) When the upstream gate 11 is in the open state, the following operation modes are available: Based on the flow value monitored by the radar flowmeter of the upstream gate 11, it is determined whether there is a situation where the water in the water replenishment connection channel 10 flows into the water replenishment output channel 60. If this situation occurs and H1 is less than 0 (i.e., the water level of the water replenishment output channel 60 is lower than the water level of the water replenishment connection channel 10), then a gate command to close the upstream gate 11 is sent to the river channel gate control unit 50 through the intelligent monitoring center 20, so that the river channel gate control unit 50 can execute the gate command to close the upstream gate 11.

[0133] See Figure 4 and Figure 5 As shown, the hardware infrastructure of the intelligent monitoring center 20 mainly includes servers and network communication modules; the software system of the intelligent monitoring center 20 mainly consists of an operating system, a database management system, and customized remote monitoring system software. The intelligent monitoring center 20 is mainly responsible for data reception, data transmission, data visualization processing, and instruction processing, specifically including:

[0134] 1) Receive the status data of the river channel gate control unit 50.

[0135] Among them, the status data mainly refers to: whether the gate is open and what the opening degree of the gate is. The status data can be used by the river channel gate control unit 50 to calculate the time for the gate to close or fully open (such as the closing time, fully open time, closing duration, fully open duration, etc.) and make scheduling judgments for the gate to close or fully open.

[0136] 2) Receive real-time data from the river channel monitoring unit 30 and make records and statistics.

[0137] 3) Respond to the data requests of the water replenishment scheduling unit 40 and provide the required information to the water replenishment scheduling unit 40.

[0138] Among them, the required data mainly refers to: gate status data, water level data, flow data, water quality data, etc. The detailed calculation of the required data on the side of the water replenishment scheduling unit 40 is as in the above water level difference calculation process and water level difference judgment process. The intelligent monitoring center 20 platform can communicate and transmit the required data to the water replenishment scheduling unit 40 through the internal system.

[0139] 4) Receive and process the data and instructions sent by the water replenishment scheduling unit 40.

[0140] Receiving the data and instructions sent by the water replenishment scheduling unit 40 mainly refers to: receiving the calculation process data and gate instructions, and assigning time information (such as the time stamp corresponding to the receiving moment, etc.) to the received data and gate instructions, so that relevant personnel can use the time information for time backtracking analysis of the data and gate instructions.

[0141] Processing the data and instructions sent by the water replenishment scheduling unit 40 mainly refers to: storing the calculation process data, gate instructions and time information in the database, and remotely sending the gate instructions to the river channel gate control unit 50 to remotely control the gate by executing the gate instructions through the river channel gate control unit 50.

[0142] 5) Intuitively visualize and display all the above data and processes through the user interface.

[0143] In summary, the working principle of the river network water replenishment control system provided by the present invention mainly includes:

[0144] Construct a water replenishment connecting river channel 10 and connect it to the water replenishment output river channel 60 and the water replenishment input river channel 70. Build an upstream gate 11 and a downstream gate 12 at the upstream and downstream ends of the water replenishment connecting river channel 10 respectively, and arrange water quality sensors, water level sensors, flow sensors, and rainfall sensors in the river channel to realize real-time monitoring of the river channel water conditions; determine the water replenishment water level difference range and the operation rules of the sluice scheduling based on the average high tide level, average low tide level, and average tide level of the water replenishment input river channel 70. Among them, the average high tide level, average low tide level, and average tide level are all obtained through historical statistical data to ensure that the water replenishment scheduling operation is carried out within a reasonable range.

[0145] The system realizes precise scheduling at the hourly level through the following steps:

[0146] (I) Real-time data collection and transmission: The water quality sensors, water level sensors, and flow sensors collect the water quality parameters, water level data, and flow data of the river channel at hourly intervals in real time, and immediately transmit these data to the intelligent monitoring center 20.

[0147] (II) Hourly water level prediction: After receiving the real-time data, the intelligent monitoring center 20 combines the historical data and uses the time series analysis algorithm to predict the water level change trend in the next 1 hour to 24 hours. The prediction accuracy is improved to the hourly level, which can more accurately capture the tidal changes, rainfall impacts, and dynamic fluctuations of the river channel water level.

[0148] (3) Generation of hourly water replenishment scheduling plan: Based on the predicted water level change trend, real-time water level difference, and water quality monitoring results, the system dynamically generates a water replenishment scheduling plan every hour. The water replenishment scheduling plan includes instructions for opening, closing, and adjusting the opening degree of the gates to ensure that the water replenishment process meets ecological requirements while ensuring flood control and drainage safety.

[0149] (4) Real-time transmission and execution of instructions: According to the generated water replenishment scheduling plan, the intelligent monitoring center 20 sends a control instruction to the gates at both ends every hour to precisely regulate the opening and closing states and opening degrees of the gates. After receiving the instruction, the gate control unit 50 immediately executes the corresponding operation and feeds back the execution result to the intelligent monitoring center 20 to form a closed-loop control.

[0150] (5) Real-time monitoring and dynamic adjustment: The system monitors the states of the river channel and the gates in real time. If it is detected that the water level of the water replenishment connected river channel 10 is lower than the water level of the water replenishment input river channel 70 and does not meet the water replenishment conditions, the intelligent monitoring center 20 will immediately send a closing instruction to the gates at both ends to prevent backflow or unreasonable flow of water. At the same time, the system dynamically adjusts the water replenishment scheduling plan according to real-time data to ensure the flexibility and adaptability of the system operation.

[0151] In the actual application process, before adopting the above river network water replenishment control method, the following steps need to be carried out:

[0152] Step 1: Construct a water replenishment connected river channel.

[0153] Collect data on the water replenishment input and output river channels, including river water system maps, multi-year water level data, multi-year tide level data, multi-year water quality data, etc.

[0154] According to the data of the water replenishment input and output river channels, determine the drainage control water level, the range of water replenishment water level difference (the highest control water level for water replenishment, the lowest operating water level), determine the positions, scheduling operation parameters, and design parameters of the upstream and downstream gates, and design the gates.

[0155] Step 2: Set the water replenishment scheduling plan.

[0156] Scheduling plan during the flood period: When floods occur in the river channel and water needs to be drained, the upstream and downstream gates are scheduled according to the requirements of dike flood control safety and urban drainage safety. If there is no flood or no rainfall, open the upstream and downstream gates to allow water to flow along the water replenishment connected river channel for ecological water replenishment.

[0157] Flood control safety scheduling plan: Close the upstream and downstream gates.

[0158] Urban drainage safety scheduling plan: Open the upstream and downstream gates.

[0159] Low water period scheduling plan: Real-time monitor the water level changes and tide level changes of the three river channels, automatically formulate the opening or closing time periods of the upstream and downstream gates, formulate a water replenishment scheduling plan within the prediction period based on historical data and real-time data, and according to the arrangement of the water replenishment scheduling plan, the intelligent monitoring center 20 sends gate commands to open the upstream and downstream gates to the river channel gate control unit 50. When it is found according to the monitoring data that the water flow in the water replenishment connection river channel 10 is about to flow in the direction opposite to its flowing direction, the intelligent monitoring center sends a gate command to close the upstream and downstream gates to the river channel gate control unit 50. Among them, the logic for discovering the flowing direction of the water flow in the water replenishment connection river channel 10 based on the monitoring data mainly includes: judging the flowing direction of the water flow according to the numerical changes of the radar flow meters of the upstream and downstream gates.

[0160] Step 3: Construct the intelligent monitoring center 20.

[0161] The intelligent monitoring center 20 is mainly used for: receiving the monitoring data of water quality, water level, and flow rate from the river channel monitoring unit 30 and the gate status data from the river channel gate control unit 50, and providing the monitoring data and gate status data to the water replenishment scheduling unit 40 so that the water replenishment scheduling unit 40 can make a judgment and send a gate command to the intelligent monitoring center 20; receiving the gate command sent by the water replenishment scheduling unit 40, and after confirming the gate command, transmitting the gate command to the river channel gate control unit to open or close the gate and control the amount of water replenished into the river channel.

[0162] The construction method of the intelligent monitoring center 20 can adopt the following steps S1 to S4:

[0163] Step S1: Determine the detailed requirements of the intelligent monitoring center 20 according to the specific scale of the river network, the configuration of the river channel monitoring unit 30, the functions of the river channel gate control unit 50, and the calculation requirements of the water replenishment scheduling plan.

[0164] For example, the construction requirements of the intelligent monitoring center 20 may include the scale of data collection equipment, data center equipment, and platform equipment. The scale of data collection equipment can be: 2 sets of gate station data acquisition workstations, 1 network hard disk video recorder, and 1 video image workstation. The data center equipment can be: 2 sets of data servers in the control area and 2 sets of data servers in the management area. The platform equipment can be: 2 sets of host and operator workstations in the control area and 2 sets of host and client workstations in the management area, 1 set of mobile application servers, and 1 set of external portal application servers.

[0165] Step S2: Establish a computer room for installing and maintaining the hardware facilities of the intelligent monitoring center 20.

[0166] Step S3: Design a software system for executing various monitoring tasks.

[0167] The software system may include a gate automatic control system and a safety monitoring system.

[0168] The design of the gate automatic control system can be as follows: a local control box and a gate control cabinet with a programmable logic controller (PLC) are configured at each of the upstream and downstream gates to realize on-site automatic control and remote control of the upstream and downstream gates. The gate automatic control system can adopt an open hierarchical distributed structure, with a central control layer and a local control layer. The central control layer is located in the intelligent monitoring center 20, and the local control layer is located at each gate. The local control layer is connected to the central control layer through a network communication system, and remote centralized control and monitoring of the upstream and downstream gates are realized in the intelligent monitoring center 20. The local control layer and the central control layer are interlocked with each other, and the local control of the gates of the local control layer is given priority.

[0169] The design of the security monitoring system can be: adopting a hierarchical distributed open structure based on Ethernet, setting up a central control unit and a local control unit. The central control unit is uniformly implemented by the platform of the intelligent monitoring center 20, automatically monitoring and controlling the local measurement unit (including MCU) and various sensors, and processing and managing the observation data. The local measurement unit can collect various sensor data using RS485 communication, and transmit the data to the central control unit using wireless communication.

[0170] Step S4, constructing a network communication module for real-time communication and data exchange between the river monitoring unit 30 and the river gate control unit 50.

[0171] The above-mentioned river network water replenishment control method has the following technical advantages:

[0172] By integrating tidal periodicity with real-time river monitoring data and gate status data, the program automatically performs intelligent data analysis and gate command sending, so as to achieve faster and more accurate protection of the ecological landscape water level in the tidal range river network area. According to the data in the forecast period, the water level changes can be predicted in advance, which can achieve rapid response, thereby extending the flow time of water flow and dynamically generating water replenishment scheduling plans. The degree of opening and closing of the gates can be accurately controlled, so that ecological water replenishment can be carried out even under small tidal range conditions. According to the rainfall, water level, flow rate, etc. of the river channel combined with meteorological forecast information, accurate and effective early warning information can be provided for flood control of river networks in tidal range areas and water use for ecological landscapes; by effectively capturing the long-term trend of water levels and seasonal patterns, a set of precise rehearsal model systems for engineering scheduling in tidal range river networks are formed, and finally accurate flood control (tide), drainage, and ecological landscape scheduling plans for tidal range river networks are quickly formed in advance, and corresponding closing and opening of gates are responded.

[0173] Based on the above-mentioned river network water replenishment control method, the embodiment of the present invention also provides a river network water replenishment control system, see Figure 1As shown in the figure, the river network water replenishment control system may include a water replenishment connecting channel 10, an intelligent monitoring center 20, a river channel monitoring unit 30, a water replenishment scheduling unit 40, and a river channel gate control unit 50 that are connected to the intelligent monitoring center 20; the upstream end of the water replenishment connecting channel 10 is used to connect to a water replenishment output channel 60, and the downstream end of the water replenishment connecting channel 10 is used to connect to a water replenishment input channel 70; an upstream gate 11 is provided at the upstream end of the water replenishment connecting channel 10, and a downstream gate 12 is provided at the downstream end of the water replenishment connecting channel 10; the river channel gate control unit 50 is respectively connected to the upstream gate 11 and the downstream gate 12. The river channel monitoring unit 30 can be used to respectively monitor the river channel parameters of the water replenishment connecting channel 10, the water replenishment output channel 60, and the water replenishment input channel 70, and send the river channel parameters to the intelligent monitoring center 20 for storage and processing; wherein, the river channel parameters include water level, water quality, and flow rate. The river channel gate control unit 50 can be used to respectively monitor the state parameters of the upstream gate 11 and the downstream gate 12, and send the state parameters to the intelligent monitoring center 20 for storage and processing; the state parameters can characterize whether the upstream gate 11 and the downstream gate 12 are respectively opened and the opening sizes of the upstream gate 11 and the downstream gate 12. The water replenishment scheduling unit 40 can be used to obtain the river channel parameters and state parameters from the intelligent monitoring center 20, determine a water replenishment scheduling strategy based on the water level, water quality, flow rate, and state parameters, then generate a gate command based on the water replenishment scheduling strategy, and send the gate command to the intelligent monitoring center 20 for storage and processing. The intelligent monitoring center 20 can be used to send a gate command to the river channel gate control unit 50. The river channel gate control unit 50 can be used to execute the gate command to control the working states of the upstream gate 11 and the downstream gate 12 respectively.

[0174] By adopting the above river network water replenishment control system, the tidal power can be integrated with the real-time monitoring data of the river channel and the state data of the gate to realize the automatic control of the gate. Furthermore, through the water collection function of the water replenishment connecting channel, effective water replenishment can be provided for the river channels that need water replenishment. Since the adopted gate control mechanism is relatively sensitive, the rapid response of water replenishment control can be achieved, thereby prolonging the water flow duration. Moreover, the gate control is relatively precise, and even under the condition of a small tidal range, the real-time monitoring data of the river channel and the state data of the gate can be used for water replenishment, which is beneficial to maintaining the health of the river ecosystem.

[0175] For the river network water replenishment control system provided by the embodiments of the present invention, its implementation principle and the technical effects generated are the same as those of the foregoing embodiments of the river network water replenishment control method. For the sake of brief description, for the parts not mentioned in the system embodiments, reference can be made to the corresponding content in the foregoing method embodiments.

[0176] Unless otherwise specifically stated, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0177] If the above-described functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium executable by a processor. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0178] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0179] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them. The protection scope of the present invention is not limited thereto. 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: any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A river network water replenishment control method, characterized in that The method is applied to a river network water replenishment control system, which includes a water replenishment connecting river, an intelligent monitoring center, a river channel monitoring unit, a water replenishment scheduling unit, and a river channel gate control unit connected to the intelligent monitoring center; the upstream end of the water replenishment connecting river is used to connect to a water replenishment output river channel, and the downstream end of the water replenishment connecting river is used to connect to a water replenishment input river channel; an upstream gate is provided at the upstream end of the water replenishment connecting river, and a downstream gate is provided at the downstream end of the water replenishment connecting river; The river channel gate control unit is respectively connected to the upstream gate and the downstream gate; the method includes: The river channel monitoring unit respectively monitors the river channel parameters of the water replenishment connecting river, the water replenishment output river channel, and the water replenishment input river channel, and sends the river channel parameters to the intelligent monitoring center for storage and processing; wherein, the river channel parameters include water level, water quality, and flow rate; The river channel gate control unit respectively monitors the state parameters of the upstream gate and the downstream gate, and sends the state parameters to the intelligent monitoring center for storage and processing; the state parameters characterize whether the upstream gate and the downstream gate are respectively opened and the opening degrees of the upstream gate and the downstream gate; The water replenishment scheduling unit obtains the river channel parameters and the state parameters from the intelligent monitoring center, determines a water replenishment scheduling strategy based on the water level, the water quality, the flow rate, and the state parameters, then generates a gate command based on the water replenishment scheduling strategy, and sends the gate command to the intelligent monitoring center for storage and processing; The intelligent monitoring center sends the gate command to the river channel gate control unit, so that the river channel gate control unit executes the gate command to control the working states of the upstream gate and the downstream gate respectively.

2. The method according to claim 1, wherein Determining the water replenishment scheduling strategy based on the water level, the water quality, the flow rate, and the state parameters includes: Based on the water levels of the water replenishment connecting river, the water replenishment output river channel, and the water replenishment input river channel respectively, determine a first water level difference between the water replenishment input river channel and the water replenishment connecting river, a second water level difference between the water replenishment output river channel and the water replenishment connecting river, and a third water level difference between the water replenishment input river channel and the water replenishment output river channel; Determine the water replenishment scheduling strategy based on the first water level difference, the second water level difference, the third water level difference, the state parameters, and the water quality and flow rate of the water replenishment connecting river, the water replenishment output river channel, and the water replenishment input river channel respectively.

3. The method according to claim 2, wherein The state parameters include the opening and closing states of the upstream gate and the downstream gate respectively; determining the water replenishment scheduling strategy based on the first water level difference, the second water level difference, the third water level difference, the state parameters, and the water quality and flow rate of the water replenishment connecting river, the water replenishment output river channel, and the water replenishment input river channel respectively includes: If the upstream gate is opened, determine the water replenishment scheduling strategy as follows: Based on the flow rates of the water replenishment connecting channel and the water replenishment output channel respectively, determine whether a first event occurs where the water in the water replenishment connecting channel flows towards the water replenishment output channel; if the first event occurs and the second water level difference is less than 0 and the water level of the water replenishment output channel is less than the ecological landscape water level of the water replenishment connecting channel, then control the upstream gate to close; if the water quality of the water replenishment input channel does not meet the preset water quality parameters, then control the upstream gate to close; If the upstream gate is closed, determine the water replenishment scheduling strategy as controlling the upstream gate to open when the second water level difference is greater than 0; If the downstream gate is opened, determine the water replenishment scheduling strategy as follows: Based on the flow rates of the water replenishment connecting channel and the water replenishment input channel respectively, determine whether a second event occurs where the water in the water replenishment input channel flows towards the water replenishment connecting channel; if the second event occurs and the first water level difference is greater than 0 and the water level of the water replenishment input channel is greater than the ecological landscape water level of the water replenishment connecting channel, then control the downstream gate to close; if the water quality of the water replenishment connecting channel does not meet the preset water quality parameters, then control the downstream gate to close; If the downstream gate is closed, determine the water replenishment scheduling strategy as controlling the downstream gate to open when the first water level difference is less than 0.

4. The method according to claim 3, wherein Determining the water replenishment scheduling strategy based on the first water level difference, the second water level difference, the third water level difference, and the state parameter, as well as the water quality and flow rate of each of the water replenishment connecting channel, the water replenishment output channel, and the water replenishment input channel, further includes: If the upstream gate and the downstream gate are opened, determine the water replenishment scheduling strategy as follows: If both the second water level difference and the third water level difference are greater than 0 and the water level of the water replenishment connecting channel is the ecological landscape water level of the water replenishment connecting channel, then control the upstream gate and the downstream gate to close; If the upstream gate and the downstream gate are closed, determine the water replenishment scheduling strategy as follows: If both the first water level difference and the second water level difference are less than 0 and the water levels of the water replenishment input channel and the water replenishment output channel are both in an increasing state, then control the upstream gate and the downstream gate to open.

5. The method according to claim 3, characterized in that The river channel parameters further include rainfall; the method further includes: Determine the water replenishment scheduling strategy based on the first water level difference, the second water level difference, the state parameter, and the rainfall of each of the water replenishment connecting channel, the water replenishment output channel, and the water replenishment input channel.

6. The method according to claim 5, characterized in that, Determining the water replenishment scheduling strategy based on the first water level difference, the second water level difference, the state parameter, and the rainfall of each of the water replenishment connecting channel, the water replenishment output channel, and the water replenishment input channel includes: If the upstream gate and the downstream gate are closed, it is determined that the water replenishment scheduling strategy is as follows: If the rainfall in the water replenishment input river channel is less than the rainfall in the water replenishment connected river channel, and both the first water level difference and the second water level difference are less than 0, and the water level of the water replenishment connected river channel is greater than the ecological landscape water level of the water replenishment connected river channel, then control the upstream gate and the downstream gate to open; If the rainfall in the water replenishment connected river channel is not less than the rainfall in the water replenishment input river channel, and both the first water level difference and the second water level difference are less than 0, then control the upstream gate and the downstream gate to open; If the upstream gate and the downstream gate are open, it is determined that the water replenishment scheduling strategy is as follows: If the rainfall in the water replenishment input river channel or the water replenishment output river channel is greater than the rainfall in the water replenishment connected river channel, and both the first water level difference and the second water level difference are greater than 0, then control the upstream gate and the downstream gate to close; If the rainfall in the water replenishment input river channel or the water replenishment output river channel is not less than 0 and less than the rainfall in the water replenishment connected river channel, and both the first water level difference and the second water level difference are greater than 0, then control the upstream gate and the downstream gate to close.

7. The method according to claim 3, wherein The flow of the water replenishment connected river channel includes the upstream end flow of the water replenishment connected river channel and the downstream end flow of the water replenishment connected river channel; Determining the water replenishment scheduling strategy based on the water level, the water quality, the flow rate, and the state parameters further includes: Based on the upstream end flow rate and the downstream end flow rate, determining whether a third event occurs in which the water in the water replenishment connected river channel flows in a direction opposite to its flow direction; If the upstream gate and the downstream gate are closed, it is determined that the water replenishment scheduling strategy is to control the upstream gate and the downstream gate to open when the third water level difference reaches a preset water level difference threshold; If the upstream gate and the downstream gate are open, it is determined that the water replenishment scheduling strategy is to control the upstream gate and the downstream gate to close when the third event occurs.

8. The method according to claim 1, characterized in that, The system further includes a meteorological server connected to the intelligent monitoring center; The method further includes: The meteorological server obtains meteorological warning data and sends the meteorological warning data to the intelligent monitoring center for storage and processing; Among them, the meteorological warning data includes rainfall prediction data; The intelligent monitoring center obtains the historical data of the water replenishment connected river channel, the water replenishment output river channel, and the water replenishment input river channel respectively, and decomposes the historical data into a trend component, a seasonal component, and a residual component by using the time series decomposition method; Among them, the historical data includes historical water level data and historical rainfall data; The water replenishment scheduling unit obtains the trend component, the seasonal component, the historical data, and the meteorological warning data from the intelligent monitoring center, determines the predicted water levels of the water replenishment connected river channel, the water replenishment output river channel, and the water replenishment input river channel respectively within a future time period based on the trend component, the seasonal component, the historical data, and the meteorological warning data, and then adjusts the water replenishment scheduling strategy based on the predicted water levels.

9. The method according to claim 1, wherein The state parameter further includes the health status of the upstream gate and the downstream gate respectively, and the health status characterizes the structural features of the upstream gate and the downstream gate respectively; The method further includes: The river channel gate control unit triggers an alarm for the target gate when it monitors that the health status of the target gate exceeds a preset health status threshold; wherein, the target gate includes the upstream gate and / or the downstream gate; The river channel gate control unit monitors the execution status of the gate command and feeds back the execution status to the intelligent monitoring center for processing and recording.

10. A river network water replenishment control system, characterized in that, The system includes a water replenishment connecting river channel, an intelligent monitoring center, a river channel monitoring unit, a water replenishment scheduling unit, and a river channel gate control unit connected to the intelligent monitoring center; the upstream end of the water replenishment connecting river channel is used to connect to a water replenishment output river channel, and the downstream end of the water replenishment connecting river channel is used to connect to a water replenishment input river channel; an upstream gate is arranged at the upstream end of the water replenishment connecting river channel, and a downstream gate is arranged at the downstream end of the water replenishment connecting river channel; the river channel gate control unit is respectively connected to the upstream gate and the downstream gate; The river channel monitoring unit is used to respectively monitor the river channel parameters of the water replenishment connecting river channel, the water replenishment output river channel, and the water replenishment input river channel, and send the river channel parameters to the intelligent monitoring center for storage and processing; wherein, the river channel parameters include water level, water quality, and flow rate; The river channel gate control unit is used to respectively monitor the state parameters of the upstream gate and the downstream gate, and send the state parameters to the intelligent monitoring center for storage and processing; the state parameters characterize whether the upstream gate and the downstream gate are respectively opened and the opening degrees of the upstream gate and the downstream gate; The water replenishment scheduling unit is used to obtain the river channel parameters and the state parameters from the intelligent monitoring center, determine a water replenishment scheduling strategy based on the water level, the water quality, the flow rate, and the state parameters, then generate a gate command based on the water replenishment scheduling strategy, and send the gate command to the intelligent monitoring center for storage and processing; The intelligent monitoring center is used to send the gate command to the river channel gate control unit; The river channel gate control unit is used to execute the gate command to control the working states of the upstream gate and the downstream gate respectively.

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