Time-sharing and grading rainfall intelligent control device

Abstract

This invention provides a time-based and graded intelligent control device for simulated rainfall, belonging to the technical field of simulation experimental devices. It includes a central controller, which is connected via wires to a main valve, a laser displacement sensor, a visual recognition module, and a soil moisture sensor. The main valve is connected to a main pipeline, which in turn connects to several branch pipelines. Each branch pipeline is equipped with a second solenoid valve and several adjustable nozzles. The main pipeline is equipped with a first solenoid valve and an air intake / exhaust valve. Through the central controller's coordination with the main valve and sensors, intelligent linkage control is achieved. Combined with the time-based and graded regulation of the multi-stage pipeline solenoid valves and adjustable nozzles, the air intake rainfall simulation parameters of the air intake / exhaust valves can be dynamically adjusted based on real-time monitored sensor data. By combining the water intake volume of the solenoid valves with the rotation of the adjustable nozzles, the soil water demand in different areas and at different times can be accurately matched, significantly improving the spatiotemporal accuracy of rainfall simulation and water resource utilization.

Description

Technical Field

[0001] This utility model belongs to the technical field of simulation experimental devices, specifically relating to a time-division and graded intelligent control device for simulating rainfall. Background Technology

[0002] Accurately simulating rainfall processes of varying intensities and temporal distributions is of great significance for meteorological research, agricultural irrigation, and geological disaster early warning. Rainfall simulation devices are core tools for dynamic rainfall simulation in hydrology, environment, and engineering fields. With their precise controllability, multi-scenario adaptability, and efficient simulation capabilities, they remain a key focus in scientific research and engineering practice.

[0003] Chinese patent CN222340205U discloses a timed irrigation device. This device typically consists of a control system, a water pump, a water tank, and irrigation nozzles. It can preset the irrigation time and water volume to achieve timed and quantitative water supply to plants. However, it simulates rainfall by uniformly spraying water, making it difficult to automatically adjust the rainfall intensity or drainage strategy based on experimental data (such as abnormal seepage).

[0004] Currently, simulation experiments for tailings dam failure still rely on manual spraying devices such as watering cans to simulate rainfall. While these devices still offer low-cost verification and teaching value in tailings dam simulations, their limited spray range, large manual adjustment errors, and limitation to simulating only a single rainfall event make them unsuitable for modern dam failure risk research. Upgrading rainfall simulation devices to higher precision and dynamic response capabilities through intelligent transformation, multi-field coupling enhancement, and standardized design is necessary to provide more reliable technical support for tailings dam safety control.

[0005] The existing technology has the following drawbacks: 1. Inaccurate simulation of the spatiotemporal distribution of rainfall. Timed irrigation devices typically simulate rainfall by spraying evenly at fixed time intervals (e.g., once per hour), which cannot reproduce the randomness and suddenness of natural rainfall. Actual rainfall may present a complex pattern of "intermittent torrential rain + short pauses," and timed irrigation can only roughly divide the time periods, resulting in distortion of the analysis of the infiltration line rise rate and seepage path.

[0006] 2. Limited seepage path. The vertical infiltration-dominated model of timed irrigation cannot simulate the coupling effect of surface runoff and interflow in natural rainfall.

[0007] 3. Lack of dynamic response mechanism; the preset program for timed irrigation is difficult to automatically adjust rainfall intensity or drainage strategy based on experimental data.

[0008] Given the above background, there is an urgent need for a device that can dynamically adjust the randomness of simulated rainfall intensity. Utility Model Content

[0009] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a time-based and graded intelligent control device for simulating rainfall.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: A time-based and graded simulated rainfall intelligent control device includes a central controller. The central controller is connected to a main valve, a laser displacement sensor, a visual recognition module, and a soil moisture sensor via wires. The main valve is connected to a main pipeline, and the main pipeline is connected to several branch pipelines via a trunk pipe. Each branch pipeline is equipped with a second solenoid valve and several adjustable nozzles. The main pipeline is equipped with a first solenoid valve.

[0011] The central controller includes a control panel, a Bluetooth time switch, a leakage current protector, and a control module. The control panel displays the system operating status in real time, including sensor data and rainfall parameter information. The Bluetooth time switch collects sensor data and rainfall parameters in real time, and the control module automatically adjusts the system status through data analysis and calculation.

[0012] The adjustable nozzle adopts a multi-stage rotating structure design.

[0013] The main pipeline is equipped with a first solenoid valve, a check valve, a first pressure gauge, an inlet and outlet valve, a second pressure gauge, and a flow meter in sequence. The pressure gauge continuously monitors the inlet and outlet pressures and transmits the data to the central controller. The flow meter monitors the rainfall in real time and feeds the data back to the central controller.

[0014] The solenoid valve uses variable frequency speed control technology to precisely regulate the water flow rate.

[0015] The central controller adjusts the intake and exhaust valves to control the pressure based on the pressure signal from the pressure gauge.

[0016] The central controller includes an alarm module.

[0017] The central controller includes an infrared receiver.

[0018] Includes a handheld remote control, and an infrared receiver that receives control signals from the handheld remote control.

[0019] The central controller is connected to an external surge arrester, which includes a rod clamp and a grounding copper rod from top to bottom.

[0020] Compared with the prior art, the present invention has the following beneficial effects: This invention provides a time-based and graded intelligent control device for simulated rainfall, comprising a central controller. The central controller is connected to a main valve, a laser displacement sensor, a visual recognition module, and a soil moisture sensor via wires. The main valve is connected to a main pipeline, which is connected to several branch pipelines via a trunk line. Each branch pipeline is equipped with a second solenoid valve and several adjustable nozzles. The main pipeline is equipped with a first solenoid valve and an air intake / exhaust valve. Intelligent linkage control is achieved through the central controller in conjunction with the main valve, laser displacement sensor, visual recognition module, and soil moisture sensor. Combined with the time-based and graded regulation of the multi-stage pipeline solenoid valves and adjustable nozzles, the air intake parameters for rainfall simulation can be dynamically adjusted based on real-time monitored sensor data. By combining the water intake of the solenoid valves with the rotation of the adjustable nozzles, the soil water demand in different areas and at different times can be accurately matched, significantly improving the spatiotemporal accuracy of rainfall simulation and water resource utilization, while reducing equipment energy consumption. This provides an efficient and reliable automated rainfall solution for scenarios such as agricultural irrigation and soil and water conservation experiments.

[0021] Furthermore, the system's built-in alarm module triggers an alarm when it detects excessive pressure or sudden changes in flow, and automatically switches to standby mode. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall circuit structure of this utility model; Figure 2 This is a schematic diagram of the handheld remote control in this utility model; Figure 3 This is a schematic diagram of the connection structure of the solenoid valve in this utility model; Figure 4 This is a schematic diagram of the pipeline network structure in this utility model.

[0023] The following are the labeling symbols in the diagram: 1. Central controller; 11. Control panel; 12. Bluetooth time switch; 13. Residual current device; 14. Infrared receiver; 15. Surge arrester; 151. Rod clamp; 152. Grounding copper rod; 2. Main valve; 3. Main pipeline; 31. First solenoid valve; 32. Check valve; 33. First pressure gauge; 34. Inlet and outlet valves; 35. Second pressure gauge; 36. Flow meter; 37. Main pipe; 38. First plug; 4. Branch pipeline; 41. Second solenoid valve; 42. Adjustable nozzle; 43. Second plug; 44. T-connector; 45. Female threaded connector; 46. Threaded joint; 47. Union; 48. Decoder; 49. Waterproof connector; 5. Laser displacement sensor; 6. Visual recognition module; 7. Soil moisture sensor; 8. Handheld remote control. Detailed Implementation

[0024] To further understand the present invention, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments are merely illustrative and not intended to limit the scope of the invention.

[0025] Example 1 A time-based and graded simulated rainfall intelligent control device has the following structural components: like Figures 1-4 As shown, a time-based and graded simulated rainfall intelligent control device includes a central controller 1. The central controller 1 is connected to a main valve 2, a laser displacement sensor 5, a visual recognition module 6, and a soil moisture sensor 7 via wires. The main valve 2 is connected to a main pipe 3, which is connected to several branch pipes 4 via a trunk pipe 37. Each branch pipe 4 is equipped with a second solenoid valve 41 and several adjustable nozzles 42. A second plug 43 is installed at the end of the branch pipe 4. The laser displacement sensor 5 is used to monitor surface deformation, the visual recognition module 6 is used to capture rainwater distribution in real time, and the soil moisture sensor 7 is used to monitor the soil moisture of the tailings dam in real time.

[0026] Furthermore, first plugs 38 are installed at both ends of the main pipe 37, and the branch pipe 4 is embedded in the tailings dam surface through the support column 48.

[0027] Preferably, the adjustable nozzle 42 adopts a multi-stage rotating structure design, which can achieve multi-angle and multi-level rainfall coverage, the spray angle is adjustable, multiple nozzles can be used in combination to simulate different rainfall intensities, and it has an automatic rotation function.

[0028] Furthermore, the central controller 1 includes a control panel 11, a Bluetooth time switch 12, a leakage current protector 13, an infrared receiver 14, and a control module. The control panel 11 serves as a human-machine interface, capable of displaying the system's operating status in real time, including sensor data, rainfall parameters, and other information. The Bluetooth time switch 12 employs an advanced closed-loop control system, capable of acquiring key parameters such as the angles of the flow meter 36, laser displacement sensor 5, visual recognition module 6, soil moisture sensor 7, and adjustable nozzle 42 in real time. The control module, through data analysis and calculation, can automatically adjust the system status to ensure that the rainfall process follows a preset program. The leakage current protector 13 is connected to an external power source, and the infrared receiver 14 is used to receive control signals from the handheld remote control 8.

[0029] Preferably, the central controller 1 is connected to an external surge arrester 15, which includes a rod clamp 151 and a grounding copper rod 152 from top to bottom, to ensure the safety of the device during operation.

[0030] Furthermore, the central controller 1 is electrically connected to the main pipe 3, the trunk pipe 37 and the branch pipe 4 via wires. A decoder 48 is installed on the branch pipe 4. The decoder 48 decodes the signal of the central controller 1 into baseband data to control the frequency conversion speed regulation of the solenoid valve. A waterproof connector 49 is installed at the wire connection to form a waterproof barrier to prevent moisture, dust and corrosive liquids from entering the connection part.

[0031] Furthermore, the main pipeline 3 is sequentially equipped with a first solenoid valve 31, a check valve 32, a first pressure gauge 33, an air inlet / outlet valve 34, a second pressure gauge 35, and a flow meter 36. The solenoid valve employs variable frequency speed control technology to precisely regulate the water flow rate; the check valve 32 prevents backflow of water; the pressure gauges continuously monitor the inlet and outlet pressures and transmit the data to the central controller 1. After receiving the pressure signal, the central controller 1 controls the pressure by adjusting the air inlet / outlet valve 34, which in turn adjusts the power supply frequency of the second solenoid valve 41 on the branch pipeline 4 to control the water flow intensity and reduce the pressure inside the pipe. The flow meter 36 monitors the rainfall in real time and feeds the data back to the central controller 1, providing an accurate reference for the rainfall intensity in the experiment.

[0032] Furthermore, such as Figure 3 As shown, the main pipe 3 and the branch pipe 37, and the branch pipe 4 are connected by a tee joint 44. The solenoid valve is connected by an internal threaded joint 45, a double thread 46, and a union 47. Waterproof rings are added to all pipe connections to ensure the system's sealing and reliability.

[0033] Preferably, it includes a handheld remote controller 8, which controls the central controller through an infrared receiver 14 and has network connectivity. Users can remotely adjust rainfall parameters based on real-time data to achieve multi-condition rainfall simulation.

[0034] Preferably, the central controller 1 includes an alarm module. When the system detects an abnormality, such as excessive pressure or sudden flow changes, it will immediately trigger an alarm mechanism and issue a warning message to the operator via the display screen. Simultaneously, the system will automatically activate a backup mode to ensure safe operation. For example, in low-risk nighttime mode, the system will only activate one nozzle or one branch pipe 4 and shut down the valve motor, further reducing energy consumption and water waste.

[0035] Example 2 A time-based and graded simulated rainfall intelligent control device, the working method of which is as follows: The intelligent control device for time-sharing and graded simulated rainfall operates with a central controller at its core, achieving fully automatic monitoring, feedback, and intelligent regulation. First, the system performs a self-check to ensure all sensors and actuators are functioning correctly. After the self-check, the user presets rainfall parameters, such as rainfall intensity, duration, and coverage area, via the control panel 11 or handheld remote control 8. Upon system startup, the central controller 1 activates the main valve 2 to open the external water source. The water flows sequentially through the first solenoid valve 31, the check valve 32, and the pressure gauge assembly in the main pipe 3. The check valve prevents backflow, and the solenoid valve precisely controls the initial flow rate through frequency conversion speed regulation. Subsequently, the water flows into the main pipe 37 and is distributed to various branch pipes 4. The second solenoid valve 41 of each branch opens, closes, or adjusts its power supply frequency under the command of the central controller 1. Combined with the multi-stage rotating structure of the adjustable nozzles 42, this achieves layered rainfall coverage through a combination of multiple nozzles, meeting the requirements for simulating graded rainfall intensity.

[0036] Simultaneously, the system collects sensor data in real time: laser displacement sensor 5 monitors surface deformation, visual recognition module 6 captures the uniformity of rainwater distribution, and soil moisture sensor 7 detects soil moisture in the tailings dam. This data, along with information transmitted from flow meter 36 and pressure gauge, is input into the Bluetooth time control switch for comprehensive analysis. Based on feedback data, the central controller 1 dynamically adjusts the air intake of intake and exhaust valve 34 to stabilize the pipe pressure and controls the flow intensity of each branch by adjusting the frequency of the second solenoid valve 41, ensuring efficient and stable rainfall. Furthermore, the system has a built-in alarm module that triggers an alarm when pressure exceeds limits or flow rate changes, and automatically switches to standby mode. The entire process is controlled in a closed loop to ensure precise execution of the rainfall experiment until the preset program ends or is terminated by remote user intervention.

[0037] Preferably, according to experimental requirements, the system can gradually increase or decrease rainfall intensity to simulate different levels of rainfall events. In short-duration heavy rainfall mode, the system rapidly increases the rotation speed and spray angle of the adjustable nozzle 42 to simulate the effect of high-intensity rainfall in a short period of time. In continuous rainfall accumulation mode, the system gradually adjusts the operating parameters of the adjustable nozzle 42 to simulate a long-term, low-intensity rainfall process. This phased control method can more accurately reflect rainfall changes in the actual environment. After the rainfall ends, the system automatically saves all collected data and generates corresponding reports. Users can conduct in-depth research and evaluation of the experimental results through data analysis functions.

[0038] The system employs a time-based and tiered control strategy, automatically adjusting the nozzle's operating status and water flow parameters based on preset time periods and rainfall intensity requirements. For example, during high-intensity rainfall during the day, the system simultaneously activates multiple nozzles and adjusts their spray angle and speed to simulate the effect of natural rainfall; while during low-risk periods at night, the number of nozzles is reduced or some nozzles are shut off to minimize water waste.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A time-based and graded simulated rainfall intelligent control device, characterized in that, The system includes a central controller (1), which is connected to a main valve (2), a laser displacement sensor (5), a visual recognition module (6), and a soil moisture sensor (7) via wires. The main valve (2) is connected to a main pipeline (3), which is connected to several branch pipelines (4) via a trunk pipe (37). Each branch pipeline (4) is equipped with a second solenoid valve (41) and several adjustable nozzles (42). The main pipeline (3) is equipped with a first solenoid valve (31) and an air intake / exhaust valve (34).

2. The intelligent control device for time-based and graded simulated rainfall according to claim 1, characterized in that, The central controller (1) includes a control panel (11), a Bluetooth time switch (12), a leakage current protector (13), and a control module. The control panel (11) displays the system operating status in real time, including sensor data and rainfall parameter information. The Bluetooth time switch (12) collects sensor data and rainfall parameters in real time. The control module automatically adjusts the system status through data analysis and calculation.

3. The intelligent control device for time-based and graded simulated rainfall according to claim 1, characterized in that, The adjustable nozzle (42) adopts a multi-stage rotating structure design.

4. The intelligent control device for time-based and graded simulated rainfall according to claim 1, characterized in that, The main pipeline (3) is equipped with a first solenoid valve (31), a check valve (32), a first pressure gauge (33), an air inlet and outlet valve (34), a second pressure gauge (35), and a flow meter (36) in sequence. The pressure gauge continuously monitors the inlet and outlet pressures and transmits the data to the central controller (1). The flow meter (36) monitors the rainfall in real time and feeds the data back to the central controller (1).

5. The intelligent control device for time-based and graded simulated rainfall according to claim 4, characterized in that, The solenoid valve uses variable frequency speed control technology to precisely regulate the water flow rate.

6. The intelligent control device for time-based and graded simulated rainfall according to claim 4, characterized in that, The central controller (1) adjusts the intake and exhaust valves (34) to control the pressure based on the pressure signal from the pressure gauge.

7. The intelligent control device for time-based and graded simulated rainfall according to claim 1, characterized in that, The central controller (1) includes an alarm module.

8. The intelligent control device for time-based and graded simulated rainfall according to claim 1, characterized in that, The central controller (1) includes an infrared receiver (14).

9. The intelligent control device for time-based and graded simulated rainfall according to claim 8, characterized in that, Includes a handheld remote control (8) and an infrared receiver (14) that receives the control signal from the handheld remote control (8).

10. The intelligent control device for time-based and graded simulated rainfall according to claim 1, characterized in that, The central controller (1) is connected to an external surge arrester (15), which includes a rod clamp (151) and a grounding copper rod (152) from top to bottom.

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