Multi-partition dynamic irrigation pressure adjusting system

Abstract

The invention relates to a multi-partition dynamic irrigation pressure regulating system, which belongs to the technical field of agricultural irrigation and comprises a user interaction end, an irrigation control host, a constant-pressure water supply frequency converter and an irrigation partition electromagnetic valve, the user interaction terminal is used for a user to set different irrigation pressure values for different irrigation zones; the irrigation control host is in communication connection with the user interaction terminal; the irrigation control host is connected with a constant-pressure water supply frequency converter through an RS485 communication interface, and the constant-pressure water supply frequency converter is used for driving a water pump; the plurality of irrigation subarea electromagnetic valves are connected with an irrigation control host, and the plurality of irrigation subarea electromagnetic valves are in one-to-one correspondence with the plurality of irrigation subareas; according to the method, the target irrigation pressure value can be independently preset for each irrigation zone, accurate on-demand water supply is achieved, and equipment loss and energy waste caused by global high-pressure operation of a traditional system are avoided while irrigation uniformity and effectiveness are ensured.

Description

Technical Field

[0001] This invention relates to the field of agricultural irrigation technology, and in particular to a multi-zone dynamic irrigation pressure regulation system. Background Technology

[0002] In existing multi-zone irrigation networks, when using drip irrigation, sprinkler irrigation, and other irrigation methods, the actual irrigation pressure required by each zone often varies significantly due to differences in area, terrain, and distance from the pump station. Traditional irrigation systems typically set a uniform water supply pressure at the pump station, but this pressure supply method is difficult to adapt to the actual needs of different irrigation zones. For irrigation zones that are close together or small in scale, a uniform pressure may be too high, easily causing the pipe network, joints, drippers, or sprinklers within that irrigation zone to bear pressure exceeding design standards. Over long-term operation, this can easily lead to problems such as joint detachment, dripper damage, or pipe bursts. Conversely, for irrigation zones that are far apart or large in scale, the same pressure may be too low, resulting in uneven water output at the end points, reduced irrigation efficiency, and negatively impacting crop growth.

[0003] Currently, a common approach to address this issue is to install independent electromagnetic pressure regulating valves at the inlet of each irrigation zone, achieving zone-specific pressure regulation by setting different pressures for each valve. However, this method not only increases the cost of valve procurement and installation but also requires cumbersome pressure setting and coordination during the construction and commissioning phase, which is labor-intensive, time-consuming, and complex to maintain, limiting its widespread application in large-scale, standardized irrigation systems. Therefore, it is necessary to provide a solution that is easy to debug and can adapt to multi-zone irrigation pressure control and regulation.

[0004] Therefore, how to adjust the differentiated irrigation pressure in multiple zones is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] To overcome the problems existing in the background technology, the present invention provides a multi-zone dynamic irrigation pressure regulation system. The present invention realizes centralized, automatic and differentiated regulation of dynamic irrigation pressure in multiple zones, improves irrigation efficiency and reduces construction and debugging complexity.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention provides a multi-zone dynamic irrigation pressure regulation system, comprising: a user interface terminal, an irrigation control host, a constant pressure water supply frequency converter, and irrigation zone solenoid valves; the user interface terminal is used for users to set different irrigation pressure values ​​for different irrigation zones; the irrigation control host is communicatively connected to the user interface terminal; the irrigation control host is connected to the constant pressure water supply frequency converter via an RS485 communication interface, and the constant pressure water supply frequency converter is used to drive water pumps; multiple irrigation zone solenoid valves are all connected to the irrigation control host, and each of the multiple irrigation zone solenoid valves corresponds to a specific irrigation zone; The irrigation control host obtains the target irrigation pressure value set by the user for the target irrigation zone on the user interaction terminal, and sends a setting command containing the target irrigation pressure value to the constant pressure water supply frequency converter through the RS485 communication interface; when the irrigation control host confirms that the pressure value in the irrigation pipeline has reached the target irrigation pressure value, it sends a control command to open the irrigation zone solenoid valve corresponding to the target irrigation zone.

[0007] In the above technical solution, the irrigation control host includes a main controller, which stores pressure-zone mapping data, and the pressure-zone mapping data can be edited and configured through a user interface.

[0008] In the above technical solution, the main controller includes multiple control signal output terminals, which are used to control the opening and closing of the solenoid valves of each irrigation zone.

[0009] In the above technical solution, the irrigation control host includes a wide-area wireless communication module and a wired communication module. The wide-area wireless communication module establishes a remote data connection with the user interaction terminal through a public cellular network. The wide-area wireless communication module includes a cellular network access device, and the wired communication module includes an Ethernet controller. The Ethernet controller is connected to the cellular network access device and the main controller respectively through an Ethernet communication interface.

[0010] The above technical solution also includes a pressure sensor, which is communicatively connected to the constant pressure water supply frequency converter and is used to feed back real-time pressure signals in the irrigation pipeline to the constant pressure water supply frequency converter.

[0011] The above technical solution also includes a flow meter, which is communicatively connected to the irrigation control host and is used to feed back real-time irrigation flow data to the irrigation control host.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention can independently preset target irrigation pressure values ​​for each irrigation zone, achieving precise on-demand water supply. While ensuring irrigation uniformity and effectiveness, it avoids equipment damage and energy waste caused by the global high-pressure operation of traditional systems.

[0013] This invention, through the synergistic effect of pressure monitoring and constant pressure water supply frequency converter, ensures that each zone is supplied with water as needed while effectively avoiding the impact of pressure changes on the pipeline network; it significantly reduces the cost of manual operation and inspection, and improves the accuracy of irrigation management and the reliability of the system. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic structural diagram of the present invention; Figure 2 This is a schematic structural diagram of the irrigation control host of the present invention; Figure 3 This is a circuit diagram of the main controller of the present invention; Figure 4 This is a circuit diagram of the external device of the main controller of this invention; Figure 5 This is a circuit structure diagram of the wide-area wireless communication module of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0017] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0018] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] like Figure 1 As shown in the figure, this application proposes a multi-zone dynamic irrigation pressure regulation system, including: a user interface terminal, an irrigation control host, a constant pressure water supply frequency converter, and irrigation zone solenoid valves; the user interface terminal is used for users to set different irrigation pressure values ​​for different irrigation zones; the irrigation control host is communicatively connected to the user interface terminal; the irrigation control host is connected to the constant pressure water supply frequency converter through an RS485 communication interface, and the constant pressure water supply frequency converter is used to drive the water pump; multiple irrigation zone solenoid valves are all connected to the irrigation control host, and the multiple irrigation zone solenoid valves correspond one-to-one with multiple irrigation zones; The irrigation control host obtains the target irrigation pressure value set by the user for the target irrigation zone on the user interface terminal, and sends the setting command containing the target irrigation pressure value to the constant pressure water supply frequency converter through the RS485 communication interface; when the irrigation control host confirms that the pressure value in the irrigation pipeline has reached the target irrigation pressure value, it sends a control command to open the solenoid valve of the irrigation zone corresponding to the target irrigation zone.

[0021] This application further realizes highly intelligent and automated irrigation management: users can remotely set the target irrigation pressure value for each zone through the user interface terminal, and monitor the pipeline pressure status and the opening and closing status of solenoid valves in real time. Relying on the software logic of a general-purpose controller, the system can flexibly configure complex strategies such as rotational irrigation, timed irrigation, and condition-triggered irrigation. Through the synergistic effect of pressure monitoring and constant pressure water supply frequency converters, it ensures that each zone receives water on demand while effectively avoiding the impact of pressure surges on the pipeline network; significantly reducing manual operation and inspection costs, and improving the accuracy of irrigation management and system reliability.

[0022] like Figure 2 As shown, the irrigation control host includes a main controller, which stores pressure-zone mapping data. The pressure-zone mapping data is used to record the correspondence between each irrigation zone and the user-preset irrigation pressure value, and can be edited and configured through the user interface.

[0023] like Figures 3 to 4 As shown, the main controller includes multiple control signal output terminals, which are used to control the opening and closing of the solenoid valves in each irrigation zone.

[0024] In this embodiment, the main controller is a 16DO controller. The control signal output terminal of the 16DO controller is connected to the solenoid valve of each irrigation zone in a one-to-one correspondence, and is used to control the individual opening and closing of the solenoid valve of each irrigation zone.

[0025] The irrigation control host includes a wide-area wireless communication module and a wired communication module. The wide-area wireless communication module establishes a remote data connection with the user interface terminal through a public cellular network. The wide-area wireless communication module includes a cellular network access device, and the wired communication module includes an Ethernet controller. The Ethernet controller is connected to the cellular network access device and the main control unit through a wired communication interface. Remote user interaction and monitoring are realized through the wide-area wireless module, while the wired Ethernet controller ensures the stability and high speed of local data transmission. This not only improves the reliability and anti-interference capability of the system, but also enhances the deployment flexibility and scalability.

[0026] like Figure 5 As shown, in this embodiment, the cellular network access device is a 4G router, and the main controller accesses the public cellular network and establishes a remote wireless data connection with the user interface terminal via the Ethernet controller and the 4G router; the wired communication interface in this embodiment is an Ethernet interface.

[0027] This application embodiment also includes a pressure sensor, which is communicatively connected to the constant pressure water supply frequency converter. The pressure sensor is used to feed back real-time pressure signals from the irrigation pipeline to the frequency converter. By setting a pressure sensor communicatively connected to the constant pressure water supply frequency converter, pressure changes in the irrigation pipeline can be monitored in real time, and the feedback signal can be transmitted to the frequency converter, forming a closed-loop control. When the pipeline pressure exceeds a set safety threshold, the frequency converter can stop operating promptly, effectively preventing excessive pressure on the pipeline due to continuous pressure increases, preventing pipeline rupture or damage, and improving the safety and reliability of system operation.

[0028] This application embodiment also includes a flow meter. The irrigation control host is connected to the flow meter via an RS485 communication interface. The flow meter is used to feed back real-time irrigation flow data to the main controller in the irrigation control host. In this embodiment, the flow meter is used to measure the total volume of irrigation water and provide irrigation flow data for system operation. The irrigation flow data and pressure value can be combined to form a composite judgment logic, which is used to identify faults such as pipeline leakage, solenoid valve failure, or pump dry running, and promptly trigger alarms or protection actions to ensure the stable and reliable operation of the irrigation system.

[0029] The working process of this invention: After users edit and configure the pressure-zone mapping data on the user interface, the data is stored in the irrigation control host. When irrigation operation for the Nth irrigation zone needs to be started, the irrigation control host calculates the target irrigation pressure value P set by the user for the target irrigation zone on the user interface.n The target irrigation pressure value P corresponding to the Nth irrigation zone is sent to the constant pressure water supply frequency converter via the RS485 communication interface. n The setting command is executed; after the constant pressure water supply frequency converter adjusts the output pressure according to the setting command, the irrigation control host controls the opening of the solenoid valve corresponding to the Nth irrigation zone; when it is necessary to switch from irrigation zone N to irrigation zone M, the actuator of irrigation zone N is first closed, and then the target irrigation pressure value of the constant pressure water supply frequency converter is set to P through the RS485 communication interface. m The irrigation control host controls the opening of the solenoid valve corresponding to the Mth irrigation zone.

[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A multi-zone dynamic irrigation pressure regulation system, characterized by, The application relates to an irrigation control system. The user interaction terminal is used for setting different irrigation pressure values for different irrigation subareas; the irrigation control host is in communication connection with the user interaction terminal; the irrigation control host is connected with the constant-pressure water supply frequency converter through an RS485 communication interface; the constant-pressure water supply frequency converter is used for driving a water pump; a plurality of irrigation subarea electromagnetic valves are connected with the irrigation control host, and the plurality of irrigation subarea electromagnetic valves correspond to a plurality of irrigation subareas one by one. The irrigation control host obtains a target irrigation pressure value set by a user for a target irrigation subarea through the user interaction terminal, and sends a setting instruction containing the target irrigation pressure value to the constant-pressure water supply frequency converter through the RS485 communication interface; the irrigation control host sends a control instruction to open the irrigation subarea electromagnetic valve corresponding to the target irrigation subarea when confirming that the pressure value in the irrigation pipeline reaches the target irrigation pressure value. The irrigation control host comprises a main controller, and the main controller stores pressure-subarea mapping data which can be edited and configured through the user interaction terminal.

2. A multi-zone dynamic irrigation pressure regulation system as claimed in claim 1, wherein, The main controller comprises a plurality of control signal output ends, and the plurality of control signal output ends are respectively used for controlling the opening and closing of the irrigation subarea electromagnetic valves.

3. A multi-zone dynamic irrigation pressure regulation system as claimed in claim 2, wherein, The irrigation control host comprises a wide-area wireless communication module and a wired communication module; the wide-area wireless communication module establishes a remote data connection with the user interaction terminal through a public cellular network; the wide-area wireless communication module comprises a cellular network access device, and the wired communication module comprises an Ethernet controller; the Ethernet controller is connected with the cellular network access device and the main controller through an Ethernet communication interface.

4. A multi-zone dynamic irrigation pressure regulation system as claimed in claim 2, wherein, The system further comprises a pressure sensor which is in communication connection with the constant-pressure water supply frequency converter and is used for feeding back a real-time pressure signal in the irrigation pipeline to the constant-pressure water supply frequency converter.

5. A multi-zone dynamic irrigation pressure regulation system as claimed in claim 1, wherein, The system further comprises a flow meter which is in communication connection with the irrigation control host and is used for feeding back real-time irrigation flow data to the irrigation control host.

6. A multi-zone dynamic irrigation pressure regulation system as in claim 1, wherein, ​

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