CN-121979306-A - Intelligent control method and system for irrigation district water gate

CN121979306ACN 121979306 ACN121979306 ACN 121979306ACN-121979306-A

Abstract

The invention discloses an intelligent control method and system for a irrigation area water gate, and relates to the technical field of hydraulic engineering; the method comprises the steps of obtaining operation data of all gates in a target canal dispatching area, carrying out overall optimization calculation of cross-area long-term water distribution by means of a cloud center, obtaining total distribution water of the area and sending the total distribution water to a corresponding edge computing node, judging communication states of gate terminals and the cloud center or the edge computing node, if all gate terminals are normally communicated, carrying out predictive cooperative control on all gates in the area by the edge computing node, determining opening and closing sequences and optimal opening sequences of all gates, and if communication of the gate terminals is interrupted, independently adjusting opening of a target interrupted gate to obtain an optimal opening value. The method can realize reasonable distribution of water resources through global optimization, and can avoid regional scheduling problems caused by gate communication interruption, so that the safety of regulation and control of the water conservancy system under the condition of abnormal communication is improved.

Inventors

CHENG QIANXUN
YAN WENLONG
CHENG KANG
WANG YUN
MENG LINGXIN

Assignees

安徽中清环境科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260123

Claims (10)

1. An intelligent control method of a irrigation district water gate, which is characterized by comprising the following steps: acquiring operation data of all gates in a target branch canal dispatching area, wherein the operation data comprises water level, flow, rainfall and gate state information; according to the operation data, global optimization calculation of cross-regional long-term water distribution is carried out through a cloud center to obtain total distribution water quantity of the target branch canal scheduling area; The total distribution water quantity is sent to an edge computing node of the target side channel scheduling area, wherein the edge computing node is a control unit for controlling the opening and closing sequence and the opening of a plurality of gates on the target side channel scheduling area; Judging the communication state between a gate terminal and the cloud center or the edge computing node; if the communication state of all gate terminals is normal, the edge computing node performs predictive cooperative control on all gates in the target branched channel scheduling area, and determines the opening and closing sequence and the optimal opening sequence of each gate; if the communication state of the gate terminal is interrupted, the independent opening degree adjustment is carried out on the target interrupt gate to obtain an optimal opening degree value, wherein the target interrupt gate is any gate in all communication interrupt gates.
2. The intelligent control method of a irrigation area water gate according to claim 1, wherein the obtaining the total distribution water volume of the target branch canal scheduling area by global optimization calculation of cross-regional long-term water distribution through a cloud center according to the operation data comprises: Step 1, calculating the real-time hydraulic load degree of the target branch canal scheduling area at the current moment according to the water level and the flow in the operation data; Step 2, according to rainfall data in the operation data and in combination with short-term weather forecast, calculating expected water purification increment of the target side channel scheduling area in an future scheduling period; Step 3, judging the availability and the current opening evaluation of the key control gates in the target branch canal dispatching area according to the gate state information in the operation data to obtain the maximum adjustable capacity; step 4, constructing a feasible interval of total distribution water according to the real-time hydraulic load degree, the expected purified water increment and the maximum adjustable capacity; Step 5, selecting calculation points of the feasible section by using a golden section search method to obtain initial calculation points; Step 6, inputting the total distribution water quantity candidate value corresponding to the initial calculation point into a preset evaluation model, and judging whether the total distribution water quantity candidate value causes any critical node water level overrun or channel flow overrun to obtain a safety evaluation result; And 7, updating the initial calculation point according to a golden section searching method and the safety evaluation result to obtain an updated calculation point, taking the updated calculation point as a new initial calculation point, repeatedly executing the step 6 until the interval length between the updated calculation point and the initial calculation point is smaller than a preset threshold value, and finally selecting the total distribution water quantity candidate value with the largest value from the total distribution water quantity candidate values meeting the safety condition in all the safety evaluation results as the total distribution water quantity.
3. The intelligent control method of irrigation district water gates according to claim 1, wherein the edge computing node performs predictive cooperative control on all gates in the target branch canal scheduling area, and determining an opening and closing sequence and an optimal opening sequence of each gate comprises: monitoring communication delay and gate response delay between the edge computing node and a target gate terminal in the target canal dispatching area in real time, and predicting total delay time required from generation of a next control instruction to effectiveness of the target gate terminal; calculating the regulated water quantity required to be regulated by the target gate in a future scheduling period according to the total distributed water quantity, the real-time water level and the flow; Dividing a preset scheduling period of a target gate into equal-length control sub-windows according to the total delay time; Inquiring a preset opening water quantity mapping table, and obtaining an initial opening value according to the regulated water quantity and the opening value of the target gate; calculating the opening of each subsequent control sub-window by a preset dynamic programming algorithm to obtain an optimal opening sequence of the target gate according to the residual regulated water quantity and the total delay time by taking the initial opening value as an opening value in the first control sub-window; And counting all optimal planned opening sequences, and determining the cooperative opening and closing sequence of all gates in the target branched canal scheduling area and the optimal opening sequence corresponding to each gate.
4. The intelligent control method of a irrigation district water gate according to claim 1, wherein the performing the independent opening adjustment on the target interrupt gate to obtain the optimal opening sequence comprises: acquiring a target total regulating water quantity which is finally received by a target interrupt gate before communication interrupt and a real-time water level measured value of a local water level sensor of a terminal of the target interrupt gate; converting the real-time water level measured value through a preset water level and water storage capacity mapping table to obtain actual water storage capacity; Calculating the difference value between the actual water storage amount and the target total regulating water amount to obtain a water deviation value; taking the ratio of the target total regulated water quantity and the actual water storage quantity as a regulating intensity coefficient; And calculating the opening of the target interrupt gate according to the water deviation value, the target total regulated water quantity and the regulating intensity coefficient to obtain an optimal opening value.
5. The intelligent control method of a irrigation district water gate according to claim 4, wherein calculating the opening of the target interrupt gate according to the water amount deviation value, the target total adjusted water amount, and the adjustment intensity coefficient to obtain an optimal opening value comprises: By passing through Calculating to obtain an opening value, wherein, Is the value of the opening degree, Is the maximum allowable opening degree of the gate, Is the deviation value of the water quantity, The water quantity is adjusted for the target total, In order to adjust the intensity coefficient, H is the real-time water level value, Is the upper limit value of the water level.
6. An intelligent control system for a irrigation district water gate, the system comprising: the system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring operation data of all gates in a target branch channel scheduling area, and the operation data comprises water level, flow, rainfall and gate state information; The total water quantity calculation module is used for carrying out global optimization calculation of cross-regional long-term water quantity distribution through a cloud center according to the operation data to obtain total distribution water quantity of the target branch canal dispatching area; the system comprises a transmitting module, a target side channel scheduling area, a total distribution water amount distribution module, a distribution water amount distribution module and a control module, wherein the transmitting module is used for transmitting the total distribution water amount to an edge computing node of the target side channel scheduling area; The judging module is used for judging the communication state between the gate terminal and the cloud center or the edge computing node; The first condition module is used for carrying out predictive cooperative control on all gates in the target branch channel scheduling area by the edge computing node if the communication state of all gate terminals is normal, and determining the opening and closing sequence and the optimal opening sequence of each gate; And the second condition module is used for adjusting the independent opening degree of the target interrupt gate to obtain an optimal opening degree value if the communication state of the gate terminal is interrupt, wherein the target interrupt gate is any gate among all the communication interrupt gates.
7. An intelligent control system for a irrigation district water gate according to claim 6 wherein the total water volume calculation module comprises: the load degree calculation module is used for calculating the real-time hydraulic load degree of the target branch canal scheduling area at the current moment according to the water level and the flow in the operation data; the increment calculation module is used for calculating the expected water purification increment of the target branch canal scheduling area in the future scheduling period according to the rainfall data in the operation data and in combination with the short-term weather forecast; The capacity calculation module is used for judging the availability and the current opening evaluation of the key control gates in the target branch canal scheduling area according to the gate state information in the operation data to obtain the maximum adjustable capacity; the interval construction module is used for constructing a feasible interval of total distribution water according to the real-time hydraulic load degree, the expected purified water increment and the maximum adjustable capacity; the calculation point selection module is used for selecting calculation points of the feasible region through a golden section search method to obtain initial calculation points; the result generation module is used for inputting the total distribution water quantity candidate value corresponding to the initial calculation point into a preset evaluation model, and judging whether the total distribution water quantity candidate value causes any critical node water level overrun or channel flow overrun to obtain a safety evaluation result; And the circulation module is used for updating the initial calculation point according to a golden section search method and the safety evaluation result to obtain an updated calculation point, taking the updated calculation point as a new initial calculation point, repeatedly executing the result generation module until the interval length between the updated calculation point and the initial calculation point is smaller than a preset threshold value, and finally selecting the total distribution water quantity candidate value with the largest numerical value from the total distribution water quantity candidate values meeting the safety condition in all the safety evaluation results as the total distribution water quantity.
8. An intelligent control system for a irrigated area water gate as in claim 6 wherein the first condition module comprises: The delay time prediction module is used for monitoring communication delay and gate response delay between the edge computing node and a target gate terminal in the target canal dispatching area in real time and predicting total delay time required from generation of a next control instruction to effectiveness of the target gate terminal; the adjusting water quantity calculating module is used for calculating the adjusting water quantity required to be adjusted by the target gate in a future scheduling period according to the total distributed water quantity, the real-time water level and the flow; the dividing module is used for dividing the preset scheduling period of the target gate into control sub-windows with equal length according to the total delay time; The opening value acquisition module is used for inquiring a preset opening water quantity mapping table and obtaining an initial opening value according to the adjusted water quantity and the opening value of the target gate; The first opening value calculation module is used for calculating the opening of each subsequent control sub-window by a preset dynamic programming algorithm to obtain an optimal opening sequence of the target gate according to the residual regulated water quantity and the total delay time by taking the initial opening value as an opening value in the first control sub-window; The statistics module is used for counting all optimal planned opening sequences and determining the optimal opening sequences corresponding to all gates in the cooperative opening and closing sequence of all gates in the target branched channel scheduling area.
9. An intelligent control system for a irrigated area water gate as in claim 6 wherein the second condition module comprises: the parameter acquisition module is used for acquiring the target total regulated water quantity which is finally received by the target interrupt gate before communication interrupt and the real-time water level measured value of the target interrupt gate terminal local water level sensor; The water storage capacity acquisition module is used for converting the real-time water level measured value through a preset water level and water storage capacity mapping table to obtain the actual water storage capacity; the difference value calculation module is used for calculating the difference value between the actual water storage amount and the target total regulating water amount to obtain a water amount deviation value; the coefficient calculation module is used for taking the ratio of the target total regulated water quantity to the actual water storage quantity as a regulating intensity coefficient; and the second opening value calculation module is used for calculating the opening of the target interrupt gate according to the water quantity deviation value, the target total regulated water quantity and the regulating intensity coefficient to obtain an optimal opening value.
10. An intelligent control system for a irrigation district water gate according to claim 9, wherein the second opening value calculating module comprises: By passing through Calculating to obtain an opening value, wherein, Is the value of the opening degree, Is the maximum allowable opening degree of the gate, Is the deviation value of the water quantity, The water quantity is adjusted for the target total, In order to adjust the intensity coefficient, H is the real-time water level value, Is the upper limit value of the water level.

Description

Intelligent control method and system for irrigation district water gate Technical Field The invention belongs to the technical field of hydraulic engineering, and particularly relates to an intelligent control method and system for a water gate of an irrigation area. Background The water resource is a core element of agricultural production, the irrigated area is used as a key carrier for agricultural irrigation, and the water resource allocation efficiency directly influences the yield and quality of crops. The water diversion gate is a core execution component for water resource scheduling in irrigation areas and plays an important role in accurately distributing water according to the requirements of crop types, growth stages, soil moisture and the like in different irrigation sheet areas. The patent application CN117850487A discloses a gate intelligent control method and a gate intelligent control system based on water conservancy monitoring data, and relates to the technical field of water conservancy management, and the method comprises the steps of acquiring operation data of all gates in a water conservancy system, and determining analysis duration of each gate in the water conservancy system based on the operation data; the method comprises the steps of forming a gate analysis time matrix by analyzing time lengths of all gates, monitoring water level height information in a water conservancy system in real time, predicting gate opening and closing degree of each gate at the moment corresponding to the next analysis time length, recording the gate opening and closing degree as gate regulation and closing degree, generating gate regulation and control signals based on the gate regulation and closing degree, summarizing all gate regulation and closing signals to form the gate regulation and control signal matrix, and controlling the gate regulation and closing degree by a central control terminal. However, the method does not design a coping mechanism for communication signal interruption of the gate terminal and the control center, the gate maintains the original state during communication interruption, the opening and closing degree cannot be flexibly adjusted according to the local water level change, and a state synchronization and historical data transmission supplementing mechanism after no fault recovery can not only lead to failure of single gate regulation, but also possibly cause global water level regulation unbalance due to inconsistent states of multiple gates, thereby causing equipment loss or safety risk and leading to low safety of water conservancy system regulation. Disclosure of Invention The invention aims to solve the problem of low safety of water conservancy system regulation and control caused by communication signal interruption in an intelligent control system of a gate, and provides an intelligent control method and system of a water diversion gate in a irrigation area. In a first aspect of the present invention, an intelligent control method for a irrigation area water gate is provided, where the method includes: acquiring operation data of all gates in a target branch canal dispatching area, wherein the operation data comprises water level, flow, rainfall and gate state information; according to the operation data, global optimization calculation of cross-regional long-term water distribution is carried out through a cloud center to obtain total distribution water quantity of the target branch canal scheduling area; The total distribution water quantity is sent to an edge computing node of the target side channel scheduling area, wherein the edge computing node is a control unit for controlling the opening and closing sequence and the opening of a plurality of gates on the target side channel scheduling area; Judging the communication state between a gate terminal and the cloud center or the edge computing node; if the communication state of all gate terminals is normal, the edge computing node performs predictive cooperative control on all gates in the target branched channel scheduling area, and determines the opening and closing sequence and the optimal opening sequence of each gate; if the communication state of the gate terminal is interrupted, the independent opening degree adjustment is carried out on the target interrupt gate to obtain an optimal opening degree value, wherein the target interrupt gate is any gate in all communication interrupt gates. According to the scheme, a cloud center completes macroscopic water quantity distribution based on global data, a clear total quantity adjustment target is provided for edge nodes, the edge nodes serve as an intermediate layer, two control modes with different essence are dynamically switched according to a key variable of a communication state, namely, when communication is all-pass, collaborative optimization based on global information is executed, system efficiency is optimal, when communication interruption is de