Rain intensity adjusting and controlling system and device for artificial rainfall device

Abstract

The invention belongs to the technical field of artificial rainfall simulation, and particularly relates to a rainfall intensity adjusting and controlling system and device of an artificial rainfall device. According to the invention, through dynamic closed-loop control, each spraying unit can be adjusted in real time according to local monitoring data, drastic rainfall intensity fluctuation caused by non-uniform water power distribution of a pipe network is eliminated to the greatest extent, water pressure and flow of the spraying units and the whole simulated rainfall area are accurately regulated and controlled, and simulation distortion of the area rainfall process is avoided; meanwhile, unnecessary opening degree adjustment of a pump station and a valve is reduced, energy consumption is reduced, multi-stage modules are clear in labor division, initial regulation, water pressure compensation and dynamic fine adjustment are conducted, the rapid response and self-adaptive capacity is achieved, convergence to the target strength can be achieved in a short time, modular design is achieved, all subsystems are clear in responsibility, and the system is suitable for large-scale popularization and application. And flexible adjustment can be realized according to project scale or special requirements without large-scale overall transformation.

Description

Technical Field

[0001] This invention belongs to the field of artificial rainfall simulation technology, specifically relating to a rainfall intensity control system and device for artificial rainfall devices. Background Technology

[0002] With the continuous expansion of global climate change and the increasing scope and intensity of human activities, artificial rainfall simulation is an automatic control system used to simulate natural rainfall, providing rainfall conditions for various scientific research experiments such as watershed / regional runoff generation and confluence processes, soil erosion and transport processes. Its applications are widespread, including water conservation and water resources research institutes and universities, environmental research institutes, agriculture, forestry and animal husbandry, flood control and disaster reduction, automobile manufacturing, drone manufacturing, and railway transportation.

[0003] Existing artificial rainfall devices mostly rely on single or sparsely distributed sprinkler heads to achieve rainfall through fixed pressure and flow output. Since rainfall intensity varies significantly over large areas under natural conditions, simply stacking multiple control units and directly adjusting sprinkler pressure to simulate regional rainfall processes in nature employs a single or infrequent adjustment method. This lacks real-time feedback and dynamic compensation capabilities, often requiring frequent adjustments to the control valves of each sprinkler unit due to temporal and spatial variations in rainfall intensity. During this process, the "water hammer" effect caused by water flow changes leads to drastic fluctuations in sprinkler pressure, making it impossible to precisely control the rainfall process for different units and the entire simulated area. This results in frequent fluctuations in rainfall intensity within the same unit, and "over-dense" or "blind spots" across the entire area, failing to meet the accuracy requirements of experiments. Furthermore, it can cause severe vibrations and damage to water pipelines, thus affecting the accuracy of the simulated rainfall, the simulated rainfall intensity variation process, and the system's lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a rainfall intensity control system and device for artificial rainfall, which can provide quantifiable, traceable and optimizable artificial rainfall, realize rapid and stable adjustment of rainfall intensity of each rainfall spraying unit, and achieve accurate simulation and reproduction of regional rainfall time and spatial processes.

[0005] The specific technical solution adopted by this invention is as follows: A rainfall intensity control system for an artificial rainfall device includes a rainfall intensity module, an initial control module, a feedback module, a water pressure fluctuation module, and a dynamic control module; The rainfall intensity module is used to acquire the installation layout information and initial hydraulic information of multiple independent spraying units. Based on the installation layout information of multiple independent spraying units, the rainfall area is divided into multiple spraying areas, and the rainfall intensity value of each independent spraying unit's spraying area is collected in real time. The initial control module is used to compare the rainfall intensity value with the preset target rainfall intensity value, and generate an initial control strategy based on the initial hydraulic information. The initial control strategy is then used to coordinately adjust the water supply pressure and flow rate in the water supply pipeline. The feedback module is used to obtain the rainfall intensity value and hydraulic control information after regulation, and to construct the feedback period. The water pressure fluctuation module is used to acquire water pressure change data during the feedback period and to obtain water pressure fluctuation compensation based on the water pressure change data and hydraulic control information. The dynamic control module obtains a dynamic control strategy based on water pressure fluctuation compensation and the rainfall intensity value after control. According to the dynamic control strategy, it coordinates the water supply pressure and flow in the water supply pipeline until it meets the preset target rainfall intensity value.

[0006] In a preferred embodiment, the rainfall intensity module includes a spray data extraction unit, a spray range unit, a spray area unit, and a rainfall intensity unit; The spraying data extraction unit is used to obtain the installation layout information and initial hydraulic information of multiple independent spraying units. The installation layout information includes the installation interval size, installation position and spraying angle, and the initial hydraulic information includes the initial flow valve opening and initial pressure valve opening of each independent spraying unit. The spray range unit obtains the spray range of each independent spray unit based on the installation layout information of multiple independent spray units; Spraying area unit, used to acquire rainfall area, divides the rainfall area into multiple spraying areas based on the spraying range of each independent spraying unit; The rainfall intensity unit is used to collect the rainfall intensity value of the spraying area of ​​each independent spraying unit in real time.

[0007] In a preferred embodiment, the initial control module includes a preset rainfall intensity unit, a rainfall intensity deviation unit, an initial hydraulic unit, an initial control unit, an initial control matching unit, and an initial coordinated control unit; The preset rainfall intensity unit is used to obtain the preset target rainfall intensity value; The rainfall intensity deviation unit is used to compare the rainfall intensity value of the sprayed area of ​​each independent spraying unit with the preset target rainfall intensity value to obtain the rainfall intensity deviation value; The initial hydraulic unit obtains the initial flow valve opening and initial pressure valve opening of each independent spraying unit based on the initial hydraulic information. An initial control unit is used to acquire an initial control table, wherein the initial control table includes multiple rainfall intensity deviation value ranges and a flow valve sub-table corresponding to each rainfall intensity deviation value range. The flow valve sub-table includes multiple flow valve opening ranges and a pressure valve sub-table corresponding to each flow valve opening range. The pressure valve sub-table includes multiple pressure valve opening ranges and an initial control strategy corresponding to each pressure valve range. The initial control matching unit is used to obtain the corresponding initial control strategy based on the rainfall intensity deviation value range corresponding to the rainfall intensity deviation value. The initial coordinated regulation unit is used to coordinately regulate the water supply pressure and flow rate in the water supply pipeline according to the initial regulation strategy.

[0008] In a preferred embodiment, the feedback module includes a start time unit, a duration unit, an end time unit, and a time period construction unit; The start time unit is used to obtain the time node for coordinating the adjustment of water supply pressure and flow in the water supply pipeline according to the initial control strategy, and is marked as the start time of the feedback period. The duration unit is used to obtain the feedback duration based on the adjusted rainfall intensity value and hydraulic control information. The end time unit is used to obtain the end time of the feedback period based on the start time and duration of the feedback period. The time period construction unit is used to construct a feedback time period based on the start time and end time of the feedback time period.

[0009] In a preferred embodiment, the duration unit includes a control data unit, a reference data unit, and a duration determination unit; The control data unit is used to acquire the rainfall intensity value and hydraulic control information after control. The hydraulic control information includes the flow valve opening control value and pressure valve opening control value of each independent spraying unit. The reference data unit is used to obtain standard initial values ​​and control weights. The standard initial values ​​include standard duration, standard rainfall intensity, standard flow valve opening control value, and standard pressure valve opening control value. The control weights include rainfall intensity weight, flow valve weight, and pressure valve weight. The duration determination unit is used to obtain the feedback duration based on the standard initial value, the control weight, the rainfall intensity value after control, and the hydraulic control information.

[0010] In a preferred embodiment, the water pressure fluctuation module includes a water pressure change unit, a water pressure extraction unit, a pressure valve unit, a pressure gauge unit, a pressure compensation unit, and a fluctuation compensation unit. The water pressure change unit is used to acquire water pressure change data and standard water pressure values ​​during the feedback period; The water pressure extraction unit acquires multiple water pressure values ​​based on water pressure change data. The pressure valve unit obtains the corresponding pressure valve opening control value based on hydraulic control information. The pressure gauge unit is used to obtain the pressure compensation gauge, which includes multiple pressure valve opening control value ranges and the pressure compensation value corresponding to each pressure valve opening control value range. The pressure compensation unit is used to obtain the corresponding pressure compensation value from the pressure compensation table according to the pressure valve opening control value range corresponding to the pressure valve opening control value. The fluctuation compensation unit is used to obtain water pressure fluctuation compensation based on multiple water pressure values, standard water pressure values, and pressure compensation values.

[0011] In a preferred embodiment, the dynamic control module includes a control difference unit, a control compensation unit, a dynamic control unit, a dynamic strategy unit, and a closed-loop control unit. The differential control unit is used to extract the rainfall intensity value after control and obtain the control deviation value based on the preset target rainfall intensity value. The control and compensation unit obtains the control compensation difference based on water pressure fluctuation compensation and control deviation value; The dynamic control unit is used to acquire the dynamic control table, which includes multiple control compensation difference intervals and the dynamic control strategy corresponding to each control compensation difference interval. The dynamic strategy unit retrieves the corresponding dynamic control strategy from the dynamic control table based on the control compensation difference corresponding to the control compensation difference. The closed-loop control unit is used to coordinate and adjust the water supply pressure and flow rate in the water supply pipeline according to the dynamic control strategy until the preset target rainfall intensity value is met.

[0012] In a preferred embodiment, the dynamic control module further includes a multiple difference unit, a compensation threshold unit, a difference judgment unit, a compensation data unit, a fluctuation unit, a maintenance table unit, and a maintenance unit. Multiple difference units are used to obtain the control compensation difference corresponding to each execution of the dynamic control strategy; The compensation threshold unit is used to obtain the control compensation threshold. The difference judgment unit is used to determine whether the corresponding control compensation difference exceeds the control compensation threshold each time the dynamic control strategy is executed. If the difference in control compensation when executing a dynamic control strategy exceeds the control compensation threshold, a maintenance alarm will be triggered and maintenance information will be issued. If the corresponding adjustment compensation difference does not exceed the adjustment compensation threshold each time the dynamic adjustment strategy is executed, then the operation continues; The compensation data unit is used to obtain the total control time after the maintenance information is issued and the corresponding control compensation difference when the dynamic control strategy is executed each time. The fluctuation unit obtains the control fluctuation based on the sum of multiple control compensation differences and control time. The maintenance table unit is used to obtain the maintenance table, which includes multiple control fluctuation ranges and the maintenance strategy corresponding to each control fluctuation. The maintenance unit retrieves the corresponding maintenance strategy from the maintenance table based on the control fluctuation range corresponding to the control fluctuation, and performs maintenance based on the maintenance strategy.

[0013] The present invention also provides a rainfall intensity control device for an artificial rainmaking device, used in the above-mentioned rainfall intensity control system for an artificial rainmaking device, comprising an independent spraying unit, a rainfall intensity module, an initial control module, a feedback module, a water pressure fluctuation module, and a dynamic control module; Independent spraying units are used to simulate artificial rainfall. Multiple units are set up, and each independent spraying unit consists of three nozzles of different sizes arranged in an equilateral triangle. The rainfall intensity module is used to acquire the installation layout information and initial hydraulic information of multiple independent spraying units. Based on the installation layout information of multiple independent spraying units, the rainfall area is divided into multiple spraying areas, and the rainfall intensity value of each independent spraying unit's spraying area is collected in real time. The initial control module is used to compare the rainfall intensity value with the preset target rainfall intensity value, and generate an initial control strategy based on the initial hydraulic information. The initial control strategy is then used to coordinately adjust the water supply pressure and flow rate in the water supply pipeline. The feedback module is used to obtain the rainfall intensity value and hydraulic control information after regulation, and to construct the feedback period. The water pressure fluctuation module is used to acquire water pressure change data during the feedback period and to obtain water pressure fluctuation compensation based on the water pressure change data and hydraulic control information. The dynamic control module obtains a dynamic control strategy based on water pressure fluctuation compensation and the rainfall intensity value after control. According to the dynamic control strategy, it coordinates the water supply pressure and flow in the water supply pipeline until it meets the preset target rainfall intensity value.

[0014] And, a rainfall control system terminal for an artificial rainmaking device, comprising: One or more processors; A storage device on which one or more programs are stored; When one or more programs are executed by one or more processors, the one or more processors implement a rainfall control system for an artificial rainmaking device.

[0015] The technical effects achieved by this invention are as follows: This invention utilizes dynamic closed-loop control to enable each spraying unit to adjust in real time based on local monitoring data. This minimizes the instability caused by frequent adjustments to the rainfall intensity of different units, and achieves rapid and precise conversion of rainfall intensity for each spraying unit within the area. It also precisely controls water pressure and flow, avoids system vibration, reduces unnecessary adjustments to pump stations and valves, and lowers energy consumption. The multi-level modules have clearly defined functions, from initial control to water pressure compensation and dynamic fine-tuning, providing rapid response and self-adaptation capabilities. They can converge to the target intensity in a short time. The modular design and clear responsibilities of each subsystem allow for flexible adjustments based on project scale or special needs without requiring major overall modifications. Attached Figure Description

[0016] Figure 1 This is a flowchart of the method provided by the present invention; Figure 2 This is a schematic diagram of multiple independent spraying areas provided by the present invention. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0020] Furthermore, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, the schematic diagrams are merely examples for ease of explanation and should not limit the scope of protection of the present invention.

[0021] Please see the appendix Figure 1 As shown, a rainfall intensity control system for an artificial rainfall device is provided, including a rainfall intensity module, an initial control module, a feedback module, a water pressure fluctuation module, and a dynamic control module; The rainfall intensity module is used to acquire the installation layout information and initial hydraulic information of multiple independent spraying units. Based on the installation layout information of multiple independent spraying units, the rainfall area is divided into multiple spraying areas, and the rainfall intensity value of each independent spraying unit's spraying area is collected in real time. The initial control module is used to compare the rainfall intensity value with the preset target rainfall intensity value, and generate an initial control strategy based on the initial hydraulic information. The initial control strategy is then used to coordinately adjust the water supply pressure and flow rate in the water supply pipeline. The feedback module is used to obtain the rainfall intensity value and hydraulic control information after regulation, and to construct the feedback period. The water pressure fluctuation module is used to acquire water pressure change data during the feedback period and to obtain water pressure fluctuation compensation based on the water pressure change data and hydraulic control information. The dynamic control module obtains a dynamic control strategy based on water pressure fluctuation compensation and the rainfall intensity value after control. According to the dynamic control strategy, it coordinates the water supply pressure and flow in the water supply pipeline until it meets the preset target rainfall intensity value.

[0022] The rainfall intensity module acquires the physical location (installation layout information) and initial hydraulic parameters (pressure, flow rate, etc.) of each independent spraying unit (sprinkler head). Based on the sprinkler head distribution, it divides the entire target rainfall area into several spraying zones and collects the rainfall intensity values ​​in each sub-zone in real time (e.g., through rain gauges, flow rate meters, etc.). The initial control module compares the collected real-time rainfall intensity values ​​with the pre-set target rainfall intensity values, and, combined with the initial hydraulic information of each sprinkler head, calculates and generates an initial control strategy. It determines the preliminary adjustment schemes for the pressure and flow rate of each main water supply pipeline and adjusts them synchronously according to the strategy instructions. The valve openings and pump outputs of each water supply pipeline provide corresponding water pressure and flow to each sprinkler head. The feedback module continues to monitor the actual rainfall intensity and hydraulic control information (pressure and flow changes) in each area during a feedback period after the initial control. It summarizes the data before and after control and within the time series. The water pressure fluctuation module processes the water pressure change data of each pipeline during the feedback period, identifies water pressure fluctuations in the system network caused by valve adjustments and uneven flow distribution, monitors data in real time, and calculates the water pressure fluctuation compensation value. The dynamic control module combines the water pressure fluctuation compensation value with the latest rainfall intensity value to generate a dynamic control... The control strategy continuously and collaboratively adjusts the pressure and flow of each water supply pipeline to achieve closed-loop control of each spraying unit. This feedback, compensation, and regulation process is repeated until the actual rainfall intensity in each area deviates from the preset target within an acceptable range. The entire system forms a multi-level, time-sequential closed-loop control process, ensuring both rapid response and fine-tuning through multiple iterations. Ultimately, this achieves uniform, controllable, and precise artificial rainfall. Dynamic closed-loop control allows each spraying unit to adjust in real time based on local monitoring data, minimizing the impact of frequent adjustments to rainfall intensity on different units. It can operate stably and achieve rapid and accurate conversion of rainfall intensity for each spraying unit within the area. It can precisely control the water pressure and flow rate of the spraying unit and the entire simulated rainfall area, avoiding system vibration and distortion of the regional rainfall process simulation. At the same time, it reduces unnecessary opening adjustments of pump stations and valves, reducing energy consumption. The multi-level modules have clear division of labor, from initial control to water pressure compensation to dynamic fine adjustment. It has rapid response and self-adaptation capabilities and can converge to the target intensity in a short time. The modular design has clear responsibilities for each subsystem and can be flexibly adjusted according to the project scale or special needs (such as local densification of sprinkler heads or pipeline network modification) without the need for major overall modifications.

[0023] In a preferred embodiment, the rainfall intensity module includes a spray data extraction unit, a spray range unit, a spray area unit, and a rainfall intensity unit. The spraying data extraction unit is used to obtain the installation layout information and initial hydraulic information of multiple independent spraying units. The installation layout information includes the installation interval size, installation position and spraying angle, and the initial hydraulic information includes the initial flow valve opening and initial pressure valve opening of each independent spraying unit. The spray range unit obtains the spray range of each independent spray unit based on the installation layout information of multiple independent spray units; Spraying area unit, used to acquire rainfall area, divides the rainfall area into multiple spraying areas based on the spraying range of each independent spraying unit; The rainfall intensity unit is used to collect the rainfall intensity value of the spraying area of ​​each independent spraying unit in real time.

[0024] The above-mentioned spray data extraction unit collects the installation interval dimensions, geographical coordinates, and spray angle of each independent spray unit (nozzle). It reads the flow valve opening and pressure valve opening of each nozzle (factory setting or initial setting). Based on the installation interval, spray angle, and hydraulic characteristics such as flow rate and nozzle model, it calculates the water mist coverage area of ​​each nozzle under the current settings. Considering environmental factors such as terrain and wind speed, it dynamically corrects the coverage area to ensure a closer approximation of actual spraying conditions. The spray area unit overlays and divides the overall rainfall area according to the theoretical coverage area of ​​each nozzle, generating... The system is divided into several spray sub-regions, each bound to its corresponding main nozzle list and geometric boundaries, as well as rainfall intensity units. Within each spray sub-region, existing rain sensors, photoelectric fog counters, flow / humidity probes, etc., are deployed or utilized to continuously collect the actual rainfall intensity values ​​(such as water column volume or fog droplet density per unit time). Through precise spray range and regional division, each region can be independently monitored and controlled, improving the uniformity of overall rainfall distribution. The parameterized management of installation layout and power parameters allows for rapid adaptation to different plots or temporary scenarios, making deployment more flexible.

[0025] In a preferred embodiment, the initial control module includes a preset rainfall intensity unit, a rainfall intensity deviation unit, an initial hydraulic unit, an initial control unit, an initial control matching unit, and an initial coordinated control unit; The preset rainfall intensity unit is used to obtain the preset target rainfall intensity value; The rainfall intensity deviation unit is used to compare the rainfall intensity value of the sprayed area of ​​each independent spraying unit with the preset target rainfall intensity value to obtain the rainfall intensity deviation value; The initial hydraulic unit obtains the initial flow valve opening and initial pressure valve opening of each independent spraying unit based on the initial hydraulic information. An initial control unit is used to acquire an initial control table, wherein the initial control table includes multiple rainfall intensity deviation value ranges and a flow valve sub-table corresponding to each rainfall intensity deviation value range. The flow valve sub-table includes multiple flow valve opening ranges and a pressure valve sub-table corresponding to each flow valve opening range. The pressure valve sub-table includes multiple pressure valve opening ranges and an initial control strategy corresponding to each pressure valve range. The initial control matching unit is used to obtain the corresponding initial control strategy based on the rainfall intensity deviation value range corresponding to the rainfall intensity deviation value. The initial coordinated regulation unit is used to coordinately regulate the water supply pressure and flow rate in the water supply pipeline according to the initial regulation strategy.

[0026] The above-mentioned preset rainfall intensity unit reads and stores the target rainfall intensity value from system parameters or user interface as the control benchmark for the entire system. The rainfall intensity deviation unit calculates the difference between the real-time rainfall intensity and the preset target intensity for each spraying unit's corresponding sub-area. The rainfall intensity deviation value is calculated by subtracting the preset target rainfall intensity value from the rainfall intensity value. The deviation can be positive (indicating excessive intensity, requiring a reduction in flow / pressure) or negative (indicating insufficient intensity, requiring an increase in flow / pressure). The initial hydraulic unit extracts the initial flow valve opening and initial pressure valve opening collected by each nozzle in the spraying data extraction unit as the control benchmark. The input index of the control strategy mapping table, the initial control unit, maintains a three-level mapping table (initial control table). The first level is the rainfall intensity deviation range (e.g., -5 to 0, 0 to 5 mm / h); the second level is the flow valve opening range (e.g., 20%–40%, 40%–60%); the third level is the pressure valve opening range (e.g., 30%–50%, 50%–70%). Each deviation range, flow range, and pressure range combination in the table corresponds to a pre-defined initial control strategy, namely the recommended "increase or decrease flow valve opening percentage" and "increase or decrease pressure valve opening percentage". The initial control matching unit calculates... The rainfall intensity deviation, initial flow valve opening, and initial pressure valve opening are sequentially located in the initial control table to find the deviation range where the rainfall intensity deviation value is located. Within this range, the flow range where the initial flow valve opening is located is matched, and then the corresponding pressure valve range is matched. Finally, the corresponding initial control strategy item is obtained. The initial coordinated control unit sends the matched strategy command (e.g., "flow valve +10%, pressure valve +5%" or "flow valve -8%, pressure valve -3%)) to the pipeline actuators (pump stations, valves, etc.) of each spraying unit to synchronously adjust the initial water supply flow and pressure of the system. After completion, the system enters the feedback module stage. The system monitors the actual intensity again and performs subsequent compensation and dynamic adjustment. Through a predefined multi-level mapping table, it can provide near-optimal flow and pressure adjustment amounts during the first adjustment, significantly reducing the number of subsequent iterations. The initial strategy takes into account the current valve opening range, avoiding excessive adjustments at once and reducing the risk of water pressure fluctuations caused by water hammer or pipeline oscillations. The initial control logic is separated from the subsequent dynamic compensation logic. Only the mapping table needs to be updated to adjust the strategy sensitivity or adapt to different nozzle models without modifying the control algorithm. It is finely graded according to the actual deviation, avoiding overshoot adjustment, reducing frequent start-stop of pump stations and valves and large power fluctuations, and achieving energy saving and consumption reduction.

[0027] In a preferred embodiment, the feedback module includes a start time unit, a duration unit, an end time unit, and a time period construction unit; The start time unit is used to obtain the time node for coordinating the adjustment of water supply pressure and flow in the water supply pipeline according to the initial control strategy, and is marked as the start time of the feedback period. The duration unit is used to obtain the feedback duration based on the adjusted rainfall intensity value and hydraulic control information. The end time unit is used to obtain the end time of the feedback period based on the start time and duration of the feedback period. The time period construction unit is used to construct a feedback time period based on the start time and end time of the feedback time period.

[0028] The above-mentioned start time unit records the timestamp of the moment when the initial control strategy is issued by the initial coordinated control unit and the pump station and valve actions are completed, and marks this moment as the start time of the feedback period. The duration unit continuously monitors the rainfall intensity value after control in each area and the hydraulic control information at the same time during the feedback period, and calculates the required feedback duration according to the preset observation strategy. The end time unit adds the feedback duration to the start time to obtain the end time of the feedback period. The period construction unit constructs a complete feedback period with the start time and end time of the feedback period as boundaries. By precisely defining the period boundaries, data is collected and stored only when necessary, reducing the load on sensors and communication networks. Each control has a clear start and end time, which facilitates comparison of system responses at different stages and provides clear time clues for subsequent optimization and fault diagnosis.

[0029] In a preferred embodiment, the duration unit includes a control data unit, a reference data unit, and a duration determination unit; The control data unit is used to acquire the rainfall intensity value and hydraulic control information after control. The hydraulic control information includes the flow valve opening control value and pressure valve opening control value of each independent spraying unit. The reference data unit is used to obtain standard initial values ​​and control weights. The standard initial values ​​include standard duration, standard rainfall intensity, standard flow valve opening control value, and standard pressure valve opening control value. The control weights include rainfall intensity weight, flow valve weight, and pressure valve weight. The duration determination unit is used to obtain the feedback duration based on the standard initial value, the control weight, the rainfall intensity value after control, and the hydraulic control information.

[0030] The above-mentioned control data unit acquires the rainfall intensity value after control and collects valve action data of each spraying unit after the control period, including the flow valve opening control value. The reference data unit contains a set of reference quantities preset by the system or obtained through experimentation, including standard duration, standard rainfall intensity, standard flow valve opening control value, and standard pressure valve opening control value. Based on the system response characteristics and optimization objectives, it assigns importance weights to three types of indicators: rainfall intensity weight, flow valve weight, and pressure valve weight. The duration determination unit calculates the feedback duration based on the initial standard value, control weights, rainfall intensity value after control, and hydraulic control information. The formula for calculating the feedback duration is as follows: In the formula, This is represented as the feedback duration. Indicated as standard duration, Represented as rainfall intensity weight, This is represented as the adjusted rainfall intensity value. Expressed as standard rainfall intensity value, This is expressed as the pressure valve weight. This is expressed as the pressure valve opening control value. This is expressed as the standard pressure valve opening control value. This is expressed as the flow valve weight. This is expressed as the flow valve opening control value. It represents the standard flow valve opening control value, taking into account the deviations of rainfall intensity, flow rate, and pressure to avoid distortion from a single indicator, and to make the feedback time more reflective of the overall control effect. The standard value and weight can be adjusted online or offline according to different sprinkler head models, site conditions, and target accuracy, flexibly adapting to various application scenarios.

[0031] In a preferred embodiment, the water pressure fluctuation module includes a water pressure change unit, a water pressure extraction unit, a pressure valve unit, a pressure gauge unit, a pressure compensation unit, and a fluctuation compensation unit. The water pressure change unit is used to acquire water pressure change data and standard water pressure values ​​during the feedback period; The water pressure extraction unit acquires multiple water pressure values ​​based on water pressure change data. The pressure valve unit obtains the corresponding pressure valve opening control value based on hydraulic control information. The pressure gauge unit is used to obtain the pressure compensation gauge, which includes multiple pressure valve opening control value ranges and the pressure compensation value corresponding to each pressure valve opening control value range. The pressure compensation unit is used to obtain the corresponding pressure compensation value from the pressure compensation table according to the pressure valve opening control value range corresponding to the pressure valve opening control value. The fluctuation compensation unit is used to obtain water pressure fluctuation compensation based on multiple water pressure values, standard water pressure values, and pressure compensation values.

[0032] The aforementioned water pressure variation unit collects data on the actual water pressure change over time within the feedback period and reads the system's preset standard water pressure value. The water pressure extraction unit extracts discrete water pressure values ​​at several key time points from the continuous pressure curve. The pressure valve unit obtains the pressure valve opening control value for each spraying unit within the feedback period. The pressure gauge unit reads a pre-established pressure compensation table, which maps a series of pressure valve opening ranges (e.g., 30%–40%, 40%–50%, etc.) to corresponding pressure compensation values ​​(e.g., 0.2, 0.5, etc.). The pressure compensation unit locates the range for each valve opening control value and retrieves the corresponding compensation amount from the pressure compensation table. The fluctuation compensation unit calculates the final water pressure fluctuation compensation using the extracted multi-point actual water pressure, standard water pressure, and compensation values. The calculation formula for water pressure fluctuation compensation is as follows: , This is represented as water pressure fluctuation compensation. This is expressed as a pressure compensation value. The standard water pressure value is represented by i, where i represents multiple water pressure values, i = 1, 2, 3…n. Represented as the i-th water pressure value, multi-point pressure sampling combined with valve compensation enables the system to make fine corrections for instantaneous fluctuations, suppress water hammer and pressure spikes, and maintain the stability of the pipeline network.

[0033] In a preferred embodiment, the dynamic control module includes a control difference unit, a control compensation unit, a dynamic control unit, a dynamic strategy unit, and a closed-loop control unit. The differential control unit is used to extract the rainfall intensity value after control and obtain the control deviation value based on the preset target rainfall intensity value. The control and compensation unit obtains the control compensation difference based on water pressure fluctuation compensation and control deviation value; The dynamic control unit is used to acquire the dynamic control table, which includes multiple control compensation difference intervals and the dynamic control strategy corresponding to each control compensation difference interval. The dynamic strategy unit retrieves the corresponding dynamic control strategy from the dynamic control table based on the control compensation difference corresponding to the control compensation difference. The closed-loop control unit is used to coordinate and adjust the water supply pressure and flow rate in the water supply pipeline according to the dynamic control strategy until the preset target rainfall intensity value is met.

[0034] The aforementioned differential control unit acquires the rainfall intensity values ​​measured in each sub-region after initial control and water pressure fluctuation compensation in real time, calculates the control deviation, and obtains the control deviation value by subtracting the preset target rainfall intensity value from the controlled rainfall intensity value. The control compensation unit calculates the control compensation difference based on the water pressure fluctuation compensation and the control deviation value. The calculation formula for the control compensation difference is as follows: In the formula, This is expressed as the difference in adjustment compensation. This is represented as water pressure fluctuation compensation. This is represented as the control deviation value. The dynamic control unit reads the dynamic control table, which maps the compensation difference between different intervals to the corresponding dynamic control strategy, such as the percentage or absolute amount of further increase or decrease for flow valves and pressure valves. The strategy for each interval in the table can be preset as a flow increase of +5% and pressure decrease of -2% or a flow increase of +3% and pressure increase of +1%, etc. The dynamic strategy unit locates the corresponding interval in the dynamic control table based on the control compensation difference obtained in this calculation and extracts the specific dynamic control strategy. The dynamic control strategy takes into account the pressure changes in the pipeline and adjusts the opening of each valve according to preset rules (which can be derived from historical control records or formulated according to industry standards, or can be set according to a pre-set matching mechanism based on the valve opening at each stage) to suppress the water hammer effect caused by the valve opening. The closed-loop control unit sends the strategy command to the pump station and valve actuator to coordinate the adjustment of the pressure and flow of each water supply pipeline. After each execution, the module re-enters the initial control module for a new round of control, forming a complete closed-loop control. The control process continues until the difference in rainfall intensity converges to zero within an acceptable error range. Through multiple rounds of small-step iterations, it dynamically responds to minute fluctuations in rainfall intensity and pipeline pressure, ultimately ensuring that the intensity of each sub-region closely matches the target. For example, after the current stage of control reaches the target rainfall intensity value, a new rainfall intensity needs to be set according to simulation requirements, i.e., the rainfall intensity of the next stage. The module then re-enters the initial control module, feedback module, water pressure fluctuation module, and dynamic control module for a new round of rainfall intensity control. The dynamic strategy automatically matches the real-time deviation and fluctuation, enabling rapid response to sudden events without manual intervention. Each control amount is finely divided by a mapping table, avoiding excessive one-time adjustment that could cause water hammer effects and system oscillations or rebounds. It precisely controls flow and pressure, avoiding blind pressure increases or multiple sprays, achieving linear control, reducing the impact of water hammer effects, and continuously optimizing the control amount to effectively reduce water and energy consumption. The dynamic control table and mapping function can be continuously optimized based on historical operating data, and strategy parameters can be updated online to ensure long-term stable and efficient system operation.

[0035] In a preferred embodiment, the dynamic control module further includes a multiple difference unit, a compensation threshold unit, a difference judgment unit, a compensation data unit, a fluctuation unit, a maintenance table unit, and a maintenance unit. Multiple difference units are used to obtain the control compensation difference corresponding to each execution of the dynamic control strategy; The compensation threshold unit is used to obtain the control compensation threshold. The difference judgment unit is used to determine whether the corresponding control compensation difference exceeds the control compensation threshold each time the dynamic control strategy is executed. If the difference in control compensation when executing a dynamic control strategy exceeds the control compensation threshold, a maintenance alarm will be triggered and maintenance information will be issued. If the corresponding adjustment compensation difference does not exceed the adjustment compensation threshold each time the dynamic adjustment strategy is executed, then the operation continues; The compensation data unit is used to obtain the total control time after the maintenance information is issued and the corresponding control compensation difference when the dynamic control strategy is executed each time. The fluctuation unit obtains the control fluctuation based on the sum of multiple control compensation differences and control time. The maintenance table unit is used to obtain the maintenance table, which includes multiple control fluctuation ranges and the maintenance strategy corresponding to each control fluctuation. The maintenance unit retrieves the corresponding maintenance strategy from the maintenance table based on the control fluctuation range corresponding to the control fluctuation, and performs maintenance based on the maintenance strategy.

[0036] The above describes a multi-stage difference unit that records the current control compensation difference and generates a sequence each time a dynamic control strategy is executed. The compensation threshold unit reads the control compensation threshold from the system configuration or based on an empirical model. This threshold represents the upper limit of the "normal" control fluctuation range; exceeding it indicates a possible system anomaly or the need for maintenance. The difference judgment unit compares each control compensation difference with the threshold. If a difference exists, it is determined to be an abnormal over-threshold, triggering a maintenance alarm. If no difference exists, control continues without maintenance intervention. Once an over-threshold situation is detected, the system immediately generates a maintenance alarm and sends maintenance information (such as the components to be inspected, possible fault types, etc.) to the operation and maintenance platform or on-duty personnel. The compensation data unit, after the alarm is triggered, summarizes the total control time before the current alarm and the corresponding compensation difference sequence to form a data packet. The fluctuation unit calculates the control fluctuation based on the compensation sequence and the total time. The formula for calculating the control fluctuation is... In the formula, B represents the control fluctuation, t represents the total control time, and j represents the multiple control compensation differences, j=1,2,3…m. Represented as the j-th control compensation difference, the maintenance unit reads a predefined maintenance table, which maps different fluctuation ranges, each range to a corresponding maintenance strategy (such as on-site inspection of pipeline interfaces, replacement of pressure sensors, valve overhaul, etc.). The maintenance unit, based on the actual calculated control fluctuations, locates the corresponding range in the maintenance table, extracts and executes the maintenance strategy. After maintenance is completed, the system automatically resets the threshold count and restores normal closed-loop control. By comparing the compensation difference with the threshold in real time, an alarm can be issued when the system deviates from the normal state, avoiding serious faults or false alarms. Combining historical compensation data and fluctuations, the maintenance strategy is more targeted, reducing blind inspections and unnecessary maintenance costs. The regular or abnormally triggered maintenance mechanism ensures that key equipment (sensors, valves, pipeline nodes) are always in good condition, reducing the risk of system downtime. By replacing regular large-scale inspections with on-demand maintenance, it can prevent the expansion of faults and avoid the cost of frequent comprehensive overhauls, optimizing human and logistical resources.

[0037] Please see the appendix Figure 1 and Figure 2 As shown, the present invention also provides a rainfall intensity control device for an artificial rainmaking device, used in the above-mentioned rainfall intensity control system for an artificial rainmaking device, including an independent spraying unit, a rainfall intensity module, an initial control module, a feedback module, a water pressure fluctuation module, and a dynamic control module; Independent spraying units are used to simulate artificial rainfall. Multiple units are set up, and each independent spraying unit consists of two groups of three nozzles of different specifications arranged in an equilateral triangle. The rainfall intensity module is used to acquire the installation layout information and initial hydraulic information of multiple independent spraying units. Based on the installation layout information of multiple independent spraying units, the rainfall area is divided into multiple spraying areas, and the rainfall intensity value of each independent spraying unit's spraying area is collected in real time. The initial control module is used to compare the rainfall intensity value with the preset target rainfall intensity value, and generate an initial control strategy based on the initial hydraulic information. The initial control strategy is then used to coordinately adjust the water supply pressure and flow rate in the water supply pipeline. The feedback module is used to obtain the rainfall intensity value and hydraulic control information after regulation, and to construct the feedback period. The water pressure fluctuation module is used to acquire water pressure change data during the feedback period and to obtain water pressure fluctuation compensation based on the water pressure change data and hydraulic control information. The dynamic control module obtains a dynamic control strategy based on water pressure fluctuation compensation and the rainfall intensity value after control. According to the dynamic control strategy, it coordinates the water supply pressure and flow in the water supply pipeline until it meets the preset target rainfall intensity value.

[0038] As described above, the entire rainfall area is divided into multiple spraying zones, each consisting of multiple independent spraying units. Each independent spraying unit comprises two sets of spraying devices, each set consisting of nozzles of three sizes arranged in an equilateral triangle. A water flow dispersion device (such as a high-precision filter or microporous dispersion plate) is newly installed between the spray output and the reflection path of each independent spraying unit. The water flowing through the filter in the water supply pipeline is first dispersed into numerous small streams, filtering out large particles or impurities, while making the water flow cross-section more uniform. The filter pore size is designed to match the nozzle specifications, ensuring that the water droplet and mist particle size distribution before entering the nozzle is relatively uniform. The uniformly dispersed small streams enter the different sizes of nozzles in the triangular layout, where their specific structures... Under the influence of nozzle diameter and spray pressure, a more stable atomization effect is achieved, with a narrower droplet size distribution from each nozzle and more controllable spray angle and range. In traditional solutions, some water mist is reflected and re-dispersed by the ground or obstacles. The newly added filter device highly homogenizes the primary flow stream, reducing aggregation or blind spots caused by reflection. The filter cuts and disperses large particles and aggregated flow streams, resulting in a narrower and more uniform droplet size distribution from each nozzle, significantly improving the precision and consistency of rainfall. The system's closed-loop control, along with the dispersing device, ensures consistency in flow and pressure output after each adjustment. The rainfall intensity data collected by the feedback module is more representative. The water pressure fluctuation compensation and dynamic control strategy, based on more stable spray characteristics, achieves faster convergence and higher accuracy. The rainfall intensity module acquires the physical location (installation layout information) and initial hydraulic parameters (pressure, flow rate, etc.) of each independent spraying unit (sprinkler head). Based on the sprinkler head distribution, it divides the entire target rainfall area into several spraying zones and collects the rainfall intensity values ​​in each sub-zone in real time (e.g., through rain gauges, flow rate meters, etc.). The initial control module compares the collected real-time rainfall intensity values ​​with the pre-set target rainfall intensity values, and, combined with the initial hydraulic information of each sprinkler head, calculates and generates an initial control strategy. It determines the preliminary adjustment scheme for the pressure and flow rate of each main water supply pipeline, and synchronously adjusts the valve opening and pump station output of each water supply pipeline according to the strategy instructions to provide corresponding water pressure and flow rate to each sprinkler head. The feedback module, after the initial control... During a feedback period, the actual rainfall intensity and hydraulic control information (pressure and flow changes) of each area continue to be monitored. Data before and after control, and within the time series, are summarized. The water pressure fluctuation module processes the water pressure change data of each pipeline during the feedback period, identifying water pressure fluctuations in the system network caused by valve adjustments and uneven flow distribution. Real-time data monitoring calculates the water pressure fluctuation compensation value. The dynamic control module combines the water pressure fluctuation compensation value with the latest rainfall intensity value to generate a dynamic control strategy. This strategy continuously and collaboratively fine-tunes the pressure and flow of each water supply pipeline, achieving closed-loop control of each spraying unit. This feedback, compensation, and control process is repeated until the actual rainfall intensity of each area deviates from the preset target within an acceptable range.The entire system forms a multi-level, time-sequential closed-loop control process, ensuring both rapid response and fine-tuning through multiple iterations to ultimately achieve uniform, controllable, and precise artificial rainfall. Dynamic closed-loop control allows each spraying unit to adjust in real time based on local monitoring data, minimizing rainfall intensity differences caused by uneven hydraulic distribution in the pipe network, precisely controlling water pressure and flow to avoid over-spraying, and reducing unnecessary adjustments to pump stations and valves, thus lowering energy consumption. The multi-level modules have clearly defined roles, from initial control to water pressure compensation and dynamic fine-tuning, possessing rapid response and adaptive capabilities, converging to the target intensity in a short time. The modular design, with clear responsibilities for each subsystem, allows for flexible adjustments based on project scale or special needs (such as localized sprinkler head densification or pipe network modifications) without requiring significant overall modifications.

[0039] And, a rainfall control system terminal for an artificial rainmaking device, comprising: One or more processors; A storage device on which one or more programs are stored; When one or more programs are executed by one or more processors, the one or more processors implement a rainfall control system for an artificial rainmaking device.

[0040] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A rainfall control system for an artificial rainmaking device, characterized in that, It includes a rainfall intensity module, an initial control module, a feedback module, a water pressure fluctuation module, and a dynamic control module; The rainfall intensity module is used to acquire the installation layout information and initial hydraulic information of multiple independent spraying units. Based on the installation layout information of multiple independent spraying units, the rainfall area is divided into multiple spraying areas, and the rainfall intensity value of each independent spraying unit's spraying area is collected in real time. The initial control module is used to compare the rainfall intensity value with the preset target rainfall intensity value, and generate an initial control strategy based on the initial hydraulic information. The initial control strategy is then used to coordinately adjust the water supply pressure and flow rate in the water supply pipeline. The feedback module is used to obtain the rainfall intensity value and hydraulic control information after regulation, and to construct the feedback period. The water pressure fluctuation module is used to acquire water pressure change data during the feedback period and to obtain water pressure fluctuation compensation based on the water pressure change data and hydraulic control information. The dynamic control module obtains a dynamic control strategy based on water pressure fluctuation compensation and the rainfall intensity value after control. According to the dynamic control strategy, it coordinates the water supply pressure and flow in the water supply pipeline until it meets the preset target rainfall intensity value.

2. The rainfall intensity control system of the artificial rainmaking device according to claim 1, characterized in that, The rainfall intensity module includes a spray data extraction unit, a spray range unit, a spray area unit, and a rainfall intensity unit; The spraying data extraction unit is used to obtain the installation layout information and initial hydraulic information of multiple independent spraying units. The installation layout information includes the installation interval size, installation position and spraying angle, and the initial hydraulic information includes the initial flow valve opening and initial pressure valve opening of each independent spraying unit. The spray range unit obtains the spray range of each independent spray unit based on the installation layout information of multiple independent spray units; Spraying area unit, used to acquire rainfall area, divides the rainfall area into multiple spraying areas based on the spraying range of each independent spraying unit; The rainfall intensity unit is used to collect the rainfall intensity value of the spraying area of ​​each independent spraying unit in real time.

3. The rainfall intensity control system of the artificial rainmaking device according to claim 1, characterized in that, The initial control module includes a preset rainfall intensity unit, a rainfall intensity deviation unit, an initial hydraulic unit, an initial control unit, an initial control matching unit, and an initial coordinated control unit; The preset rainfall intensity unit is used to obtain the preset target rainfall intensity value; The rainfall intensity deviation unit is used to compare the rainfall intensity value of the sprayed area of ​​each independent spraying unit with the preset target rainfall intensity value to obtain the rainfall intensity deviation value; The initial hydraulic unit obtains the initial flow valve opening and initial pressure valve opening of each independent spraying unit based on the initial hydraulic information. An initial control unit is used to acquire an initial control table, wherein the initial control table includes multiple rainfall intensity deviation value ranges and a flow valve sub-table corresponding to each rainfall intensity deviation value range. The flow valve sub-table includes multiple flow valve opening ranges and a pressure valve sub-table corresponding to each flow valve opening range. The pressure valve sub-table includes multiple pressure valve opening ranges and an initial control strategy corresponding to each pressure valve range. The initial control matching unit is used to obtain the corresponding initial control strategy based on the rainfall intensity deviation value range corresponding to the rainfall intensity deviation value. The initial coordinated regulation unit is used to coordinately regulate the water supply pressure and flow rate in the water supply pipeline according to the initial regulation strategy.

4. The rainfall intensity control system of the artificial rainmaking device according to claim 1, characterized in that, The feedback module includes a start time unit, a duration unit, an end time unit, and a time period construction unit; The start time unit is used to obtain the time node for coordinating the adjustment of water supply pressure and flow in the water supply pipeline according to the initial control strategy, and is marked as the start time of the feedback period. The duration unit is used to obtain the feedback duration based on the adjusted rainfall intensity value and hydraulic control information. The end time unit is used to obtain the end time of the feedback period based on the start time and duration of the feedback period. The time period construction unit is used to construct a feedback time period based on the start time and end time of the feedback time period.

5. The rainfall intensity control system of the artificial rainmaking device according to claim 4, characterized in that, The duration unit includes a control data unit, a reference data unit, and a duration determination unit; The control data unit is used to acquire the rainfall intensity value and hydraulic control information after control. The hydraulic control information includes the flow valve opening control value and pressure valve opening control value of each independent spraying unit. The reference data unit is used to obtain standard initial values ​​and control weights. The standard initial values ​​include standard duration, standard rainfall intensity, standard flow valve opening control value, and standard pressure valve opening control value. The control weights include rainfall intensity weight, flow valve weight, and pressure valve weight. The duration determination unit is used to obtain the feedback duration based on the standard initial value, the control weight, the rainfall intensity value after control, and the hydraulic control information.

6. The rainfall control system for the artificial rainmaking device according to claim 1, characterized in that, The water pressure fluctuation module includes a water pressure change unit, a water pressure extraction unit, a pressure valve unit, a pressure gauge unit, a pressure compensation unit, and a fluctuation compensation unit; The water pressure change unit is used to acquire water pressure change data and standard water pressure values ​​during the feedback period; The water pressure extraction unit acquires multiple water pressure values ​​based on water pressure change data. The pressure valve unit obtains the corresponding pressure valve opening control value based on hydraulic control information. The pressure gauge unit is used to obtain the pressure compensation gauge, which includes multiple pressure valve opening control value ranges and the pressure compensation value corresponding to each pressure valve opening control value range. The pressure compensation unit is used to obtain the corresponding pressure compensation value from the pressure compensation table according to the pressure valve opening control value range corresponding to the pressure valve opening control value. The fluctuation compensation unit is used to obtain water pressure fluctuation compensation based on multiple water pressure values, standard water pressure values, and pressure compensation values.

7. The rainfall control system of the artificial rainmaking device according to claim 3, characterized in that, The dynamic control module includes a control difference unit, a control compensation unit, a dynamic control unit, a dynamic strategy unit, and a closed-loop control unit; The differential control unit is used to extract the rainfall intensity value after control and obtain the control deviation value based on the preset target rainfall intensity value. The control and compensation unit obtains the control compensation difference based on water pressure fluctuation compensation and control deviation value; The dynamic control unit is used to acquire the dynamic control table, which includes multiple control compensation difference intervals and the dynamic control strategy corresponding to each control compensation difference interval. The dynamic strategy unit retrieves the corresponding dynamic control strategy from the dynamic control table based on the control compensation difference corresponding to the control compensation difference. The closed-loop control unit is used to coordinate and adjust the water supply pressure and flow rate in the water supply pipeline according to the dynamic control strategy until the preset target rainfall intensity value is met.

8. The rainfall intensity control system of the artificial rainmaking device according to claim 7, characterized in that, The dynamic control module also includes a multiple difference unit, a compensation threshold unit, a difference judgment unit, a compensation data unit, a fluctuation unit, a maintenance table unit, and a maintenance unit; Multiple difference units are used to obtain the control compensation difference corresponding to each execution of the dynamic control strategy; The compensation threshold unit is used to obtain the control compensation threshold. The difference judgment unit is used to determine whether the corresponding control compensation difference exceeds the control compensation threshold each time the dynamic control strategy is executed. If the difference in control compensation when executing a dynamic control strategy exceeds the control compensation threshold, a maintenance alarm will be triggered and maintenance information will be issued. If the corresponding adjustment compensation difference does not exceed the adjustment compensation threshold each time the dynamic adjustment strategy is executed, then the operation continues; The compensation data unit is used to obtain the total control time after the maintenance information is issued and the corresponding control compensation difference when the dynamic control strategy is executed each time. The fluctuation unit obtains the control fluctuation based on the sum of multiple control compensation differences and control time. The maintenance table unit is used to obtain the maintenance table, which includes multiple control fluctuation ranges and the maintenance strategy corresponding to each control fluctuation. The maintenance unit retrieves the corresponding maintenance strategy from the maintenance table based on the control fluctuation range corresponding to the control fluctuation, and performs maintenance based on the maintenance strategy.

9. A rainfall control device for an artificial rainmaking device, applied to the rainfall control system of an artificial rainmaking device according to any one of claims 1 to 8, characterized in that, It includes an independent spraying unit, a rainfall intensity module, an initial control module, a feedback module, a water pressure fluctuation module, and a dynamic control module; Independent spraying units are used to simulate artificial rainfall. Multiple units are set up, and each independent spraying unit consists of three nozzles of different sizes arranged in an equilateral triangle. The rainfall intensity module is used to acquire the installation layout information and initial hydraulic information of multiple independent spraying units. Based on the installation layout information of multiple independent spraying units, the rainfall area is divided into multiple spraying areas, and the rainfall intensity value of each independent spraying unit's spraying area is collected in real time. The initial control module is used to compare the rainfall intensity value with the preset target rainfall intensity value, and generate an initial control strategy based on the initial hydraulic information. The initial control strategy is then used to coordinately adjust the water supply pressure and flow rate in the water supply pipeline. The feedback module is used to obtain the rainfall intensity value and hydraulic control information after regulation, and to construct the feedback period. The water pressure fluctuation module is used to acquire water pressure change data during the feedback period and to obtain water pressure fluctuation compensation based on the water pressure change data and hydraulic control information. The dynamic control module obtains a dynamic control strategy based on water pressure fluctuation compensation and the rainfall intensity value after control. According to the dynamic control strategy, it coordinates the water supply pressure and flow in the water supply pipeline until it meets the preset target rainfall intensity value.

10. A rainfall control system terminal for an artificial rainmaking device, characterized in that, include: One or more processors; A storage device on which one or more programs are stored; When one or more programs are executed by one or more processors, the one or more processors implement the rain intensity control system of the artificial rainmaking device according to any one of claims 1 to 8.

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