Fertilization operation control method and apparatus, medium, device, and system

Abstract

The present disclosure provides a fertilization operation control method and apparatus, a medium, a device, and a system. The method comprises: acquiring a real-time concentration index parameter measured by a fertilizer solution measurement apparatus; on the basis of the real-time concentration index parameter, determining a target moment when a fertilizer solution concentration reaches the maximum concentration value; and upon determining the target moment when the fertilizer solution concentration reaches the maximum concentration value, adjusting the opening proportion of a control valve in real time on the basis of the real-time concentration index parameter and a target remaining fertilization duration corresponding to the target moment. The opening proportion of the control valve is automatically adjusted in real time on the basis of the real-time concentration index parameter and the target remaining fertilization duration, thereby reducing the number of manual adjustments of the control valve, and improving the convenience of use. By adjusting and optimizing a concentration attenuation rate in a fertilization process in real time, the fertilizer concentration changes more gently within different time periods, and the fertilization effect of the fertilizer solution is improved.

Description

A method, apparatus, medium, equipment and system for controlling fertilization operations

[0001] Cross-reference to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 2024116480214, filed on November 18, 2024, entitled "A method, apparatus, medium, equipment and system for controlling fertilization operations", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of irrigation, and more specifically, to a method, apparatus, medium, equipment, and system for controlling fertilization operations. Background Technology

[0004] When using a differential pressure fertilization system, two thin tubes (bypass tubes) of the fertilizer container are connected to the main pipeline. A control valve (ball valve, butterfly valve, or gate valve, etc.) is installed between the joints of the two thin tubes on the main pipeline to generate a small pressure difference (1-2m water pressure). This allows some water to flow into the fertilizer container. The water then enters the fertilizer container through one thin tube, dissolving the fertilizer. The fertilizer solution then enters the main pipeline through the other thin tube, carrying the fertilizer to the crop root zone. The working principle is to create a pressure difference between two points on the water supply pipe and use this pressure difference to inject fertilizer into the irrigation system. The required pressure difference for the fertilizer container is obtained by the control valve between the inlet and outlet. By adjusting the valve ratio of the control valve on the main pipeline, the pressure difference between the front and rear ends of the fertilizer container is controlled, thereby regulating the fertilizer dissolution rate and the fertilization rate of the fertilization system. The fertilizer dissolution and fertilization rates are positively correlated with the pressure difference across the fertilizer container.

[0005] Currently, the adjustment of the main pipeline valve ratio is mostly done manually based on experience, which leads to unstable accuracy in fertilization operations. Workers may forget to make adjustments due to mistakes, resulting in water waste and environmental problems. Summary of the Invention

[0006] One of the purposes of this disclosure is to provide a method, apparatus, medium, equipment, and system for controlling fertilization operations to improve the aforementioned problems.

[0007] To achieve the above objectives, the technical solutions adopted in the embodiments of this disclosure are as follows:

[0008] In a first aspect, embodiments of this disclosure provide a fertilization operation control method applied to a fertilization system. The fertilization system includes a main pipeline, a control valve disposed on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect a concentration index parameter of the fertilizer solution, the concentration index parameter being configured to characterize the fertilizer solution concentration. The method includes:

[0009] Obtain the real-time concentration parameters detected by the fertilizer solution detection device;

[0010] Determine the target time when the fertilizer solution concentration reaches its maximum value based on the real-time concentration index parameters.

[0011] After determining the target time when the fertilizer solution concentration reaches the maximum concentration value, the opening ratio of the control valve is adjusted in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time.

[0012] Optionally, the concentration index parameter includes conductivity or pH, and the method further includes: determining that the fertilizer solution concentration has reached a maximum concentration value when the conductivity reaches an extreme value based on the real-time concentration index parameter; or, determining that the fertilizer solution concentration has reached a maximum concentration value when the pH reaches an extreme value based on the real-time concentration index parameter.

[0013] Optionally, the concentration index parameters include conductivity and pH. The method further includes: determining the rate of change of at least one of conductivity and pH during the fertilization process based on the real-time concentration index parameters; if the rate of change of one of them is less than or equal to the corresponding rate of change threshold in a first preset time period, then determining whether an extreme value has been reached based on the other; if so, then determining that the fertilizer solution concentration has reached the maximum concentration value; or, if the rate of change of one of them is greater than the corresponding rate of change threshold in the first preset time period, then determining whether an extreme value has been reached based on the concentration index parameter; if so, then determining that the fertilizer solution concentration has reached the maximum concentration value.

[0014] Optionally, the concentration index parameters include conductivity and pH. The method further includes: determining whether there is a first preset relationship between the real-time conductivity and the conductivity benchmark value based on the real-time concentration index parameters; if so, determining whether the conductivity has reached an extreme value based on the conductivity in the real-time concentration index parameters; if so, determining that the fertilizer solution concentration has reached the maximum concentration value.

[0015] Optionally, adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time includes: determining the expected concentration index parameter at the current time according to the target concentration index parameter and the target remaining fertilization time, wherein the target concentration index parameter is the concentration index parameter corresponding to the target time; determining the adjustment ratio or target opening ratio of the control valve according to the real-time concentration index parameter at the current time, the expected concentration index parameter, and the adjustment coefficient; and adjusting the opening ratio of the control valve according to the adjustment ratio or target opening ratio.

[0016] Optionally, determining the expected concentration index parameter at the current moment based on the target concentration index parameter and the target remaining fertilization time includes: dividing the target remaining fertilization time into n time slices, where n is a positive integer; and determining the expected concentration index parameter at the current moment based on the expected fertilizer liquid volume ratio to be applied in each time slice, the target concentration index parameter, and the time slice number corresponding to the current moment.

[0017] Optionally, the method further includes: determining a reference value for the end of fertilization based on a concentration index baseline value and / or the target concentration index parameter; and determining the expected volume ratio of fertilizer solution to be applied in each time slice based on the reference value for the end of fertilization, the target concentration index parameter, and the number of time slices.

[0018] Optionally, adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time includes: determining the expected concentration index parameter at the current time according to the real-time concentration index parameter and the target remaining fertilization time; determining the adjustment ratio or target opening ratio of the control valve according to the real-time concentration index parameter, the expected concentration index parameter and the adjustment coefficient; and adjusting the opening ratio of the control valve according to the adjustment ratio or target opening ratio.

[0019] Optionally, determining the expected concentration index parameter at the current moment based on the real-time concentration index parameter and the target remaining fertilization time includes: dividing the target remaining fertilization time into n time slices, where n is a positive integer; determining the expected concentration index parameter at the current moment based on the remaining time slice corresponding to the current moment, the time slice number corresponding to the current moment, the real-time concentration index parameter at the current moment, and the fertilization end reference value; or, determining the expected concentration index parameter at the current moment based on the remaining time slice corresponding to the previous time slice, the time slice number corresponding to the previous time slice, the real-time concentration index parameter corresponding to the previous time slice, and the fertilization end reference value.

[0020] Optionally, the method further includes: determining a reference value for the end of fertilization based on a concentration index baseline value and / or a target concentration index parameter;

[0021] The step of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time includes: dividing the target remaining fertilization time into multiple time slices according to a preset time length; and at the end of the current time slice, adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter, the fertilization end reference value, the number of time slices, and the target concentration index parameter corresponding to the target time.

[0022] Optionally, the step of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter, the fertilization end reference value, the number of time slices, and the target concentration index parameter corresponding to the target time includes: determining the expected concentration index parameter corresponding to the current time slice according to the fertilization end reference value, the number of time slices, the target concentration index parameter, and the sequence number of the current time slice; determining the adjustment ratio or target opening ratio of the control valve according to the expected concentration index parameter, the real-time concentration index parameter at the end of the current time slice, and the adjustment coefficient; and adjusting the opening ratio of the control valve according to the adjustment ratio or target opening ratio.

[0023] Optionally, the method further includes: if the end time of the current time slice is earlier than the set end time of fertilization, estimating the theoretical end time of fertilization based on the real-time concentration index parameters at the end time of the current time slice, the real-time concentration index parameters at the beginning time of the current time slice, the concentration index benchmark value, and the fertilization end reference value; if the theoretical end time is later than the set end time of fertilization, determining whether the current opening ratio of the control valve is less than or equal to a second preset ratio; if the current opening ratio is less than or equal to the second preset ratio, prompting the user to extend the target total fertilization time; if the current opening ratio is greater than the second preset ratio, performing the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameters and the target remaining fertilization time corresponding to the target time.

[0024] Optionally, estimating the theoretical end time of fertilization based on the real-time concentration index parameters at the end of the current time slice, the real-time concentration index parameters at the beginning of the current time slice, the concentration index baseline value, and the fertilization end reference value includes: determining the change value of fertilizer application within the current time slice based on the real-time concentration index parameters at the end of the current time slice, the real-time concentration index parameters at the beginning of the current time slice, and the concentration index baseline value; determining the theoretical remaining fertilization duration based on the change value of fertilizer application, the real-time concentration index parameters at the beginning of the current time slice, the concentration index baseline value, and the fertilization end reference value; and determining the theoretical end time of fertilization based on the end time of the current time slice and the theoretical remaining fertilization duration.

[0025] Optionally, the method further includes: when the theoretical end time is earlier than the fertilization end time set time and the advance duration is greater than a preset time threshold, performing the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization duration corresponding to the target time.

[0026] Optionally, the method further includes: dividing the target remaining fertilization time into n time slices, where n is a positive integer; determining the theoretical remaining fertilization time at the current moment based on the real-time concentration index parameter at the current moment, the real-time concentration index parameter at the previous moment, the concentration index baseline value, and the fertilization end reference value, wherein the concentration index baseline value represents the concentration index parameter in the main pipeline under clean water conditions before actual fertilization begins, and the fertilization end reference value represents the theoretical value of the concentration index parameter characterizing the fertilizer solution concentration after the fertilizer application is completed, i.e., after fertilization ends; if the theoretical remaining fertilization time at the current moment is greater than the actual remaining fertilization time at the current moment, then a prompting operation is performed, wherein the prompting operation is configured to prompt the user to extend the target total fertilization time; or, performing the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target moment.

[0027] Optionally, the method further includes: if the theoretical remaining fertilization time at the current moment is less than or equal to the actual remaining fertilization time at the current moment, and greater than the difference between the actual remaining fertilization time at the current moment and a preset value, then continue to maintain the current opening ratio of the control valve for fertilization; and / or, if the theoretical remaining fertilization time at the current moment is less than or equal to the difference between the actual remaining fertilization time at the current moment and a preset value, then perform the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time.

[0028] Optionally, the method further includes: determining whether the concentration of the fertilizer solution has decreased to below the concentration index benchmark value or the fertilization end reference value based on the real-time concentration index parameters and the concentration index benchmark value; if so, fertilization is terminated.

[0029] Optionally, the method further includes: adjusting the opening ratio of the control valve to a first preset ratio at a preset opening time.

[0030] Optionally, before adjusting the opening ratio of the control valve to the first preset ratio, the method further includes acquiring first detection data of the concentration index parameter detected by the fertilizer solution detection device; and determining a concentration index benchmark value based on the first detection data.

[0031] Optionally, the method further includes: determining the expected concentration index parameter at the current moment based on the target concentration index parameter and the target remaining fertilization time; if there is a preset deviation between the real-time concentration index parameter at the current moment and the expected concentration index parameter; then performing the operation of adjusting the opening ratio of the control valve in real time based on the real-time concentration index parameter and the target remaining fertilization time corresponding to the target moment.

[0032] Optionally, the preset deviation includes any one of the following: the real-time concentration index parameter at the current moment is less than the expected concentration index parameter; the real-time concentration index parameter at the current moment is greater than the expected concentration index parameter; the absolute value of the difference between the real-time concentration index parameter at the current moment and the expected concentration index parameter is greater than the preset deviation threshold.

[0033] Secondly, embodiments of this disclosure provide a fertilization operation control device applied to a fertilization system. The fertilization system includes a main pipeline, a control valve disposed on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect a concentration parameter of the fertilizer solution, the concentration parameter being configured to characterize the fertilizer solution concentration. The device includes:

[0034] The first processing unit is configured to acquire the real-time concentration index parameters detected by the fertilizer solution detection device.

[0035] The first processing unit is also configured to determine the target time when the fertilizer solution concentration reaches the maximum concentration value based on the real-time concentration index parameters.

[0036] The second processing unit is configured to, after determining the target time when the fertilizer solution concentration reaches the maximum concentration value, adjust the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time.

[0037] Thirdly, embodiments of this disclosure provide a storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described method.

[0038] Fourthly, embodiments of this disclosure provide an electronic device, the electronic device including: a processor and a memory, the memory being configured to store one or more programs; when the one or more programs are executed by the processor, the above-described method is implemented.

[0039] Fifthly, this disclosure provides a fertilization system, which includes a main pipeline, a control valve disposed on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect the concentration index parameter of the fertilizer solution, wherein the concentration index parameter is configured to characterize the concentration of the fertilizer solution.

[0040] The fertilization system is configured to perform the above-described method.

[0041] Compared to existing technologies, this disclosure provides a fertilization operation control method, apparatus, medium, equipment, and system. The fertilization system includes a main pipeline, a control valve located on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect the concentration index parameter of the fertilizer solution, which characterizes the fertilizer solution concentration. The system acquires the real-time concentration index parameter detected by the fertilizer solution detection device; determines the target time when the fertilizer solution concentration reaches its maximum value based on the real-time concentration index parameter; and, after determining the target time when the fertilizer solution concentration reaches its maximum value, adjusts the opening ratio of the control valve in real-time according to the real-time concentration index parameter and the target remaining fertilization time. By automatically adjusting the opening ratio of the control valve in real-time based on the target concentration index parameter, the real-time concentration index parameter, and the target remaining fertilization time, the number of times the control valve needs to be manually adjusted is reduced, improving ease of use. By optimizing the decay rate of the fertilizer solution concentration during the fertilization process in real-time, the fertilizer concentration changes more gradually over different time periods, achieving accurate control of the fertilization rate and improving the fertilization effect of the fertilizer solution. This helps avoid water waste caused by worker errors and forgetting to adjust settings, thus playing a role in the rational use of water resources and protecting the environment.

[0042] To make the above-described objects, features and advantages of this disclosure more apparent and understandable, optional embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 is a schematic diagram of the fertilization system provided in an embodiment of this disclosure.

[0045] Figure 2 is a schematic diagram of the structure of the control valve provided in an embodiment of this disclosure.

[0046] Figure 3 is a schematic diagram of the deployment of the fertilizer solution detection device provided in the embodiments of this disclosure.

[0047] Figure 4 is a schematic diagram of the structure of the electronic device provided in the embodiment of this disclosure.

[0048] Figure 5 is one of the flowcharts of the fertilization operation control method provided in the embodiments of this disclosure.

[0049] Figure 6 is a second schematic flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0050] Figure 7 is a schematic flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0051] Figure 8 is a fourth flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0052] Figure 9 is a fifth flowchart illustrating the fertilization operation control method provided in this embodiment of the present disclosure.

[0053] Figure 10 is a schematic flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0054] Figure 11 is a schematic flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0055] Figure 12 is a flowchart of the fertilization operation control method provided in the embodiments of this disclosure, number eight.

[0056] Figure 13 is a flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0057] Figure 14 is a flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0058] Figure 15 is an eleventh flowchart of the fertilization operation control method provided in the embodiments of this disclosure.

[0059] Figure 16 is a schematic diagram of the operation comparison provided in the embodiments of this disclosure.

[0060] Figure 17 is a schematic diagram of the fertilization operation control device provided in the embodiments of this disclosure.

[0061] In the diagram: 10-Processor; 11-Memory; 12-Bus; 13-Communication interface; 1001-First processing unit; 1002-Second processing unit. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0063] Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate optional embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0064] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only for distinguishing description and should not be construed as indicating or implying relative importance.

[0065] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0066] In the description of this disclosure, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the disclosed product is in use. They are only for the convenience of describing this disclosure 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, they should not be construed as limitations on this disclosure.

[0067] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0068] The following detailed description of some embodiments of this disclosure is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0069] Currently, the valve ratio adjustment of control valves on main pipelines is mostly done manually based on experience, resulting in inconsistent precision in fertilization operations. This includes: inaccurate timing of fertilizer application, unintuitive and inaccurate adjustment of concentration changes during fertilization, and frequent issues such as incomplete or excessively rapid / slow application of fertilizer in differential pressure fertilization containers, leading to uneven fertilization.

[0070] To overcome the above problems, this disclosure provides a fertilization system, which includes a main pipeline, a control valve located on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate at which fertilizer solution is delivered from the fertilization container to the main pipeline. The fertilizer solution detection device is configured to detect a concentration parameter of the fertilizer solution, which characterizes the concentration of the fertilizer solution. The fertilization container can be a fertilizer tank, fertilizer bucket, etc.

[0071] The control valve includes a valve body and a controller. The controller can communicate with the fertilizer solution detection device, user terminal, and server, receiving fertilization tasks and control instructions from the user terminal and / or server, and receiving concentration parameters detected by the fertilizer solution detection device, thereby executing the fertilization operation control method. Alternatively, the fertilization system may include an independent control device that can communicate with the control valve, fertilizer solution detection device, user terminal, and server, receiving fertilization tasks and corresponding instructions from the user terminal and / or server, receiving concentration parameters detected by the fertilizer solution detection device, adjusting the opening ratio of the control valve, and thereby executing the fertilization operation control method.

[0072] Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the fertilization system provided in an embodiment of this disclosure, and Figure 2 is a schematic diagram of the control valve provided in an embodiment of this disclosure. Figures 1 and 2 illustrate the use of a fertilizer tank as the fertilizer container, but this is not intended to limit the scope. The fertilizer container can also be implemented in other forms, such as a fertilizer bucket.

[0073] The fertilization system includes a main pipeline and a control valve located on the main pipeline. The control valve includes an inlet, a first outlet, and at least one second outlet. The inlet and the first outlet are connected to the main pipeline. The fertilizer container includes a liquid inlet and an outlet. The liquid inlet of the fertilizer container is connected to the second outlet. A fertilizer inlet is located on the main pipeline near the first outlet. The outlet of the fertilizer container is connected to the fertilizer inlet. The control valve is configured to control its opening ratio, creating a pressure difference between the inlet and the first outlet. This causes some water from the inlet to flow from the second outlet to the inlet of the fertilizer container. After water is injected into the fertilizer container, it dissolves the fertilizer, allowing the fertilizer solution to flow from the outlet of the fertilizer container back to the main pipeline, thereby carrying the fertilizer to the crop root zone.

[0074] Please refer to Figure 3, which is a schematic diagram of the deployment of the fertilizer solution detection device provided in this embodiment. A fertilizer solution detection device is installed on the main pipeline (near the fertilizer inlet). The device includes a conductivity probe and a pH probe, configured to detect the conductivity and pH of the fertilizer solution. That is, the fertilizer solution detection device detects the concentration parameters of the fertilizer solution, including its conductivity and / or pH.

[0075] Optionally, as shown in Figure 3, the control valve includes multiple second outlets, which can be connected to multiple fertilizer tanks to control the multiple fertilizer tanks to perform fertilization operations. When the main pipeline equipment is equipped with multiple fertilizer tanks, fertilization operations can be performed individually based on any one of the fertilizer tanks, or simultaneous fertilization operations can be performed based on multiple fertilizer tanks; no limitation is made here.

[0076] This disclosure provides an electronic device, which can be a control device in a fertilization system or a controller in a control valve, or a device such as a mobile phone, computer, or server that is communicatively connected to the control device (or controller). Please refer to Figure 4, a schematic diagram of the electronic device. The electronic device includes a processor 10, a memory 11, and a bus 12. The processor 10 and the memory 11 are connected via the bus 12, and the processor 10 is configured to execute executable modules, such as computer programs, stored in the memory 11.

[0077] Processor 10 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the fertilization operation control method can be completed through integrated logic circuits in the hardware or software instructions within processor 10. The aforementioned processor 10 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0078] The memory 11 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device.

[0079] Bus 12 can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. Figure 4 uses only a single bidirectional arrow to represent it, but this does not mean there is only one bus 12 or only one type of bus 12.

[0080] The memory 11 is configured to store programs, such as programs corresponding to a fertilization operation control device. The fertilization operation control device includes at least one software functional module that can be stored in the memory 11 in the form of software or firmware, or embedded in the operating system (OS) of the electronic device. Upon receiving an execution instruction, the processor 10 executes the program to implement the fertilization operation control method.

[0081] The electronic device provided in this embodiment may also include a communication interface 13. The communication interface 13 is connected to the processor 10 via a bus.

[0082] It should be understood that the structure shown in Figure 4 is only a partial structural diagram of the electronic device. The electronic device may also include more or fewer components than shown in Figure 4, or have a different configuration than shown in Figure 4. The components shown in Figure 4 can be implemented using hardware, software, or a combination thereof.

[0083] The fertilization operation control method provided in this embodiment can be applied to, but is not limited to, the electronic device shown in Figure 4. The process is shown in Figure 5. The fertilization operation control method includes: S30, S50 and S90.

[0084] S30: Obtain the real-time concentration index parameters detected by the fertilizer solution detection device.

[0085] The concentration index parameters are configured to characterize the fertilizer solution concentration, and the concentration index parameters may include conductivity and / or pH. The fertilizer solution detection device can detect the concentration index parameters in real time to obtain real-time concentration index parameters, which include concentration index parameters at different times. The fertilizer solution detection device may include a conductivity sensor and a pH sensor. The fertilizer solution detection device may also be a composite sensor integrating a conductivity probe and a pH probe, configured to detect conductivity and pH.

[0086] It should be noted that after fertilization begins, the conductivity and pH of the fertilizer solution can be acquired in real time by the fertilizer solution monitoring device. Either the detected conductivity or pH can be used as a real-time concentration indicator parameter, or the acquired conductivity and pH can be analyzed to determine which parameter to use for the real-time concentration.

[0087] In this embodiment of the disclosure, the real-time concentration index parameter can be represented as value. The real-time concentration index parameter corresponding to the current time slice or the current moment can be represented as value. o The real-time concentration index parameter corresponding to the previous time slice or the previous moment can be represented as value. -1 The corresponding symbols will appear thereafter, and will not be elaborated further.

[0088] S50 determines the target time when the fertilizer solution concentration reaches its maximum value based on real-time concentration index parameters.

[0089] The target time is the moment when the fertilizer solution concentration reaches its maximum value.

[0090] In this embodiment of the disclosure, the target time can be represented as time_max, and the target concentration index parameter can be represented as value_max, which represents the maximum concentration index parameter when the fertilizer solution reaches its maximum concentration value. When the fertilizer solution reaches its maximum concentration value based on conductivity, the target concentration index parameter can be the target conductivity (or conductivity extreme value) corresponding to the target time. When the fertilizer solution reaches its maximum concentration value based on pH, the target concentration index parameter can be the target pH (or conductivity extreme value) corresponding to the target time.

[0091] The moment when the fertilizer solution concentration reaches its maximum value is the target moment. The real-time concentration index parameter at that moment can be used as the target concentration index parameter corresponding to the target moment.

[0092] After determining the target time when the fertilizer solution concentration reaches its maximum value, S90 can be executed.

[0093] S90 adjusts the opening ratio of the control valve in real time based on the real-time concentration index parameters and the target remaining fertilization time corresponding to the target time.

[0094] Wherein, the remaining fertilization time at the target time t2 = the total target fertilization time t - the fertilization time already applied at the target time t1. The total target fertilization time t is the planned total time to complete the fertilization operation; the total target fertilization time t can be user-defined or set by the system default for the fertilization task. The fertilization time already applied at the target time t1 is the time from the start time of the fertilization operation (time_start) to the target time (time_max).

[0095] The fertilization system disclosed herein delivers water to a fertilizer container, where the water dissolves the solid fertilizer or mixes with the fertilizer concentrate in the container to obtain a fertilizer solution output from the container. Throughout the fertilization process, a fertilizer solution detection device monitors the concentration of the fertilizer solution output from the container, showing the process of the concentration initially increasing, reaching its maximum at a target time, and then decreasing. The purpose of this disclosure is to control the rate of decrease in fertilizer concentration after the target time, preventing it from decreasing too quickly or too slowly. This is achieved by adjusting the opening ratio of a control valve in real time to regulate the flow rate of water delivered to the fertilizer container, thereby regulating the fertilizer dissolution rate and the rate of decrease in fertilizer concentration during fertilization, making the rate of decrease in fertilizer concentration more gradual and ensuring the fertilization effect on crops after the fertilizer solution enters the farmland.

[0096] Considering that adjusting the control valve may lead to inconsistent pressure differences during each fertilization under different irrigation systems, and that the type and amount of fertilizer added to the fertilizer container may vary, resulting in inconsistent times required for fertilizer dissolution and dilution, thus making it difficult to accurately determine when the fertilizer in the fertilizer container is used up, this disclosure adjusts the control valve according to the target remaining fertilization time corresponding to the target time. This ensures that the fertilization rate can be accurately adjusted from the target time to the end of fertilization. The target remaining fertilization time corresponding to the target time is the target total fertilization time t minus the fertilization time t1 already applied at the target time. This ensures that the fertilization task is carried out according to the set target total fertilization time t. By accurately adjusting the fertilization rate, the fertilization task can be controlled to basically follow the set target total fertilization time t.

[0097] The user's requirement is to completely empty the fertilizer container within a specified time, leaving no residue. In other words, the set fertilization task requires applying the target amount of fertilizer within the target total fertilization time t. Therefore, it is necessary to adjust the fertilization rate to ensure the fertilization task is completed within the target total fertilization time t as much as possible, without significant delays or early termination, otherwise the fertilization effect will be affected. This disclosure adjusts the opening ratio of the control valve in real time based on real-time concentration parameters and the target remaining fertilization time at the target moment. This allows for accurate adjustment of the fertilization rate of the remaining fertilizer amount at the target time, making the rate of decrease in fertilizer concentration more gradual.

[0098] The control valve opening ratio is controlled or adjusted in real time, based on real-time concentration index parameters. These parameters can change dynamically at different times, thus enabling dynamic adjustment of the fertilization process at different moments throughout the entire fertilization task.

[0099] In summary, the fertilization operation control method provided in this embodiment automatically adjusts the opening ratio of the control valve in real time based on real-time concentration parameters and the target remaining fertilization time, reducing the number of times the control valve needs to be manually adjusted. In practical applications, after adding fertilizer to the fertilization container, the user does not need to check or operate the fertilization control at the fertilization site; fertilization control can be achieved by automatically controlling the control valve, thus improving ease of use. By adjusting and optimizing the decay rate of fertilizer concentration during the fertilization process in real time, the changes in fertilizer concentration at different time periods are made smoother, achieving accurate control of the fertilization rate and improving the fertilization effect of the fertilizer solution.

[0100] During fertilization, the operation relies heavily on real-time concentration parameters and target concentration parameters (representing the maximum concentration of the fertilizer solution). These two parameters are crucial and form the foundation for ensuring the accuracy of fertilization control. Depending on the type of fertilizer applied, the correlation between the conductivity and pH values ​​obtained by the fertilizer solution detection device and the fertilizer solution concentration may differ, and the degree of change in conductivity and pH may also vary. To ensure the accuracy of subsequent real-time adjustment and control valves, it is necessary to identify the parameter with the stronger correlation and the more significant change, and based on this concentration parameter, determine whether the fertilizer solution concentration has reached the maximum concentration value, thereby enabling subsequent control. Therefore, within the first preset time period after obtaining the real-time concentration parameters detected by the fertilizer solution monitoring device in S30, S40 can be executed to determine whether the fertilizer solution concentration has reached the maximum concentration value.

[0101] Based on this, regarding the content in S40, how to determine the maximum concentration of fertilizer solution, please refer to Figure 6. When the concentration index parameters include conductivity or pH, the fertilization operation control method also includes S401 or S402.

[0102] S401 determines the maximum concentration of fertilizer solution when the conductivity reaches its extreme value based on real-time concentration index parameters.

[0103] When conductivity is included as a concentration parameter, the conductivity detected by the fertilizer solution detection device in real time is the real-time concentration parameter. Based on this real-time parameter, it can be determined whether the conductivity has reached its extreme value. When the conductivity reaches its extreme value, the fertilizer solution concentration is determined to have reached its maximum value. At this point, the target concentration parameter is the conductivity extreme value, and the target time is the moment of the conductivity extreme value.

[0104] Among them, the extreme values ​​mentioned above can be maximum or minimum values, or peak or trough values. For some types of fertilizers, the fertilizer solution concentration is positively correlated with the concentration index parameter, so the maximum or peak value can be used to determine whether the fertilizer solution concentration has reached the maximum concentration value. For some types of fertilizers, the fertilizer solution concentration is negatively correlated with the concentration index parameter, so the minimum or trough value can be used to determine whether the fertilizer solution concentration has reached the maximum concentration value.

[0105] In this embodiment of the disclosure, it can be determined whether the conductivity has reached an extreme value based on a ramping algorithm, or it can be determined whether the conductivity has reached an extreme value based on a first extreme value condition.

[0106] S402 determines the maximum concentration of fertilizer solution when the pH reaches its extreme value based on real-time concentration index parameters.

[0107] When the concentration index parameter includes pH, the pH value detected in real time by the fertilizer solution detection device becomes the real-time concentration index parameter. Based on this real-time concentration index parameter, it can be determined whether the pH has reached its extreme value. When the pH reaches its extreme value, the fertilizer solution concentration is determined to have reached its maximum value. At this point, the target concentration index parameter is the extreme value of pH, and the target time is the extreme value moment of pH.

[0108] In the embodiments of this disclosure, it can be determined whether the pH has reached an extreme value based on the climbing algorithm, and it can also be determined whether the conductivity has reached an extreme value based on the second extreme value condition.

[0109] Specifically, during fertilization, the fertilizer solution concentration rises from its lowest point at the beginning of the process until it reaches saturation and its maximum value. The concentration then begins to decrease until fertilization is complete. It should be understood that the trends in conductivity and pH detected by the fertilizer solution monitoring device should also mirror the trends in fertilizer concentration. Once a decrease occurs, the previous moment can be considered the extreme value for conductivity or pH. Therefore, extreme value conditions can be introduced to determine whether conductivity has reached its extreme value.

[0110] The first extreme condition indicates that the conductivity (Ec!) in the previous monitoring period is greater than the product of the conductivity (Ec) in the current monitoring period and a first preset coefficient, where the first preset coefficient is greater than 1. The second extreme condition indicates that the pH (PH!) in the previous monitoring period is greater than the pH (PH) in the current monitoring period.

[0111] The first preset coefficient can be set to 1.01. By setting the first preset coefficient, noise fluctuations can be eliminated, ensuring that the extreme moment of conductivity is accurately found.

[0112] When the first extreme value condition is met, the conductivity detected by the fertilizer solution detection device is used as the real-time concentration index parameter, the conductivity (Ec!) in the previous monitoring cycle is determined as the target concentration index parameter, and the time corresponding to the previous monitoring cycle is used as the target time.

[0113] When the first extreme condition is not met, but the second extreme condition is met, the pH detected by the fertilizer solution detection device is used as the real-time concentration index parameter, the pH in the previous monitoring cycle is determined as the target concentration index parameter, and the time corresponding to the previous monitoring cycle is used as the target time.

[0114] If neither the first extreme value condition nor the second extreme value condition is met within the current monitoring period, then wait for the next monitoring period and repeat the determination of whether the first extreme value condition and the second extreme value condition are met, until either one is met.

[0115] Regarding the content in S40, how to determine that the fertilizer solution concentration reaches the maximum concentration value, this disclosure also provides an optional implementation method. Please refer to Figure 7. When the concentration index parameters include conductivity and pH, the fertilization operation control method also includes S403, S404, S405, S406 and S407.

[0116] S403 determines the rate of change of at least one of conductivity and pH during fertilization based on real-time concentration parameters.

[0117] Optionally, the numerical change rate of conductivity and / or the numerical change rate of pH value during a first preset time period can be obtained. The first preset time period is the period following the start of the fertilization operation.

[0118] In one alternative implementation, a target parameter can be determined based on the fertilization type, either electrical conductivity or pH, and the rate of change of the target parameter over a first preset time period can be obtained. The target parameter is the one of electrical conductivity and pH that has a higher correlation with the fertilization type.

[0119] S404, determine whether the rate of change of one of the values ​​in the first preset time period is greater than the corresponding rate of change threshold. If yes, proceed to S405; otherwise, proceed to S406.

[0120] If only the rate of change of one of the parameters (conductivity or pH) is obtained during the first preset time period, and the rate of change of one parameter during the first preset time period is greater than the corresponding rate of change threshold, then step S405 is executed to determine whether an extreme value has been reached based on the concentration parameter. If the rate of change of one parameter during the first preset time period is less than or equal to the corresponding rate of change threshold, then step S406 is executed to determine whether an extreme value has been reached based on the other parameter.

[0121] If the rate of change of conductivity and the rate of change of pH are obtained simultaneously during the first preset time period, it can be determined whether the extreme value has been reached based on the index parameter with the larger rate of change. If so, it is determined that the fertilizer solution concentration has reached the maximum concentration value.

[0122] S405: Determine whether the extreme value has been reached based on the concentration index parameter. If yes, proceed to S407; otherwise, repeat S405.

[0123] S406, determine whether the extreme value has been reached based on the other. If yes, execute S407; otherwise, repeat S406.

[0124] It should be understood that S404 has already determined a target parameter for subsequent fertilization control based on conductivity and pH. Afterwards, S405 or S406 is executed. If the result of S405 or S406 is negative, the process waits for the next monitoring cycle. Once new concentration parameters are obtained, S405 or S406 is executed again.

[0125] S407, ensure the fertilizer solution concentration reaches the maximum value.

[0126] After determining the target time when the fertilizer solution concentration reaches the maximum concentration value, execute S50 to determine the time when the fertilizer solution concentration reaches the maximum concentration value as the target time, and determine the concentration index parameter corresponding to the target time as the target concentration index parameter.

[0127] This disclosure can be used for fertilization of different types of fertilizers, such as nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, urea, etc. For different types of fertilizers, the electrical conductivity or pH of the fertilizer solution will change differently with the fertilizer concentration during the fertilization process. For example, for some fertilizer solutions, the fertilizer concentration may decrease over a period of time, but the electrical conductivity of the fertilizer solution may tend to level off. In this case, using electrical conductivity to characterize the fertilizer concentration will lead to inaccurate calculation results. Therefore, pH can be used to determine whether the fertilizer concentration has reached the maximum concentration value.

[0128] Regarding the content in S40, how to determine that the fertilizer solution concentration reaches the maximum concentration value, this disclosure also provides an optional implementation method. Please refer to Figure 8. When the concentration index parameters include conductivity and pH, the fertilization operation control method also includes S408, S409, S410, S411 and S412.

[0129] S408, determine whether there is a first preset relationship between the real-time conductivity and the conductivity reference value based on the real-time concentration index parameters. If yes, proceed to S409; otherwise, proceed to S410.

[0130] The first preset relationship can be expressed as the conductivity (Ec) in the current monitoring cycle being greater than or equal to the conductivity reference value (Ec_water) × the second preset coefficient. The second preset coefficient is greater than 1, and its value can be, but is not limited to, 1.5.

[0131] S409: Based on the conductivity parameter in the real-time concentration index, determine whether the conductivity has reached an extreme value. If yes, proceed to S412; otherwise, repeat S409.

[0132] S410: Determine whether a second preset relationship exists between the real-time pH and the pH reference value based on the real-time concentration index parameters. If yes, proceed to S411; otherwise, repeat S408.

[0133] The second preset relationship can be expressed as the pH value in the current monitoring period being greater than or equal to the pH reference value multiplied by the third preset coefficient. The third preset coefficient is greater than 1 and its value can be, but is not limited to, 1.1.

[0134] If the execution result of S410 is negative, it is necessary to wait for the concentration index parameters of the next monitoring cycle to be obtained before repeating S408.

[0135] S411: Based on the pH value in the real-time concentration index parameter, determine whether the pH value has reached its extreme value. If yes, proceed to S412; otherwise, repeat S411.

[0136] S412, confirm that the fertilizer solution concentration has reached the maximum concentration value.

[0137] It should be noted that after executing S404, or after the execution result of S408 or S409 is "yes", the opening ratio of the control valve can be adjusted (increasing from the opening ratio at the time of opening to the third preset ratio) to reduce the fertilization speed and avoid uneven fertilization caused by excessively fast fertilization in the early stage. The opening ratio of the control valve can be dynamically adjusted in real time until the fertilizer solution concentration reaches the maximum concentration value.

[0138] Building upon the preceding text, regarding the content in S90, how to determine the adjustment ratio or target opening ratio of the control valve, thereby ensuring the accuracy of the control valve's opening ratio adjustment, optimizing the concentration decay rate during fertilization, making the fertilizer concentration changes more gradual over different time periods, and improving the fertilization effect of the fertilizer solution. This disclosure also provides an optional implementation method, please refer to the following. S90, adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameters and the target remaining fertilization time corresponding to the target time, includes: S910, S920, and S930.

[0139] S910 determines the expected concentration parameters at the current moment based on the target concentration parameters and the target remaining fertilization time.

[0140] Among them, the target concentration index parameter is the concentration index parameter corresponding to the target time.

[0141] S920 determines the adjustment ratio or target opening ratio of the control valve based on the real-time concentration index parameters, expected concentration index parameters, and adjustment coefficient.

[0142] Optionally, the formula for the adjustment ratio of the control valve is: tuning=k×(value) o -value_i)÷value_i;

[0143] Where tuning represents the adjustment ratio of the control valve, and valueo This represents the real-time concentration index parameter corresponding to the current time slice or the current moment, where value_i represents the expected concentration index parameter at the current moment, and k represents the adjustment coefficient.

[0144] In one optional implementation, to avoid excessive adjustments that could cause fluctuations in fertilizer concentration, the adjustment ratio (tuning) can be further constrained. When the value of the adjustment ratio (tuning) falls within the interval [M1, M2], the adjustment ratio (tuning) remains unchanged. When the adjustment ratio (tuning) is less than M1, the value of the adjustment ratio (tuning) is adjusted to M1, while the sign of the adjustment ratio (tuning) remains unchanged. When the adjustment ratio (tuning) is greater than M2, the value of the adjustment ratio (tuning) is adjusted to M2, while the sign of the adjustment ratio (tuning) remains unchanged. Here, the sign indicates whether the adjustment ratio (tuning) is positive or negative when it is less than M1 and adjusted to M1. M1 and M2 are preset coefficients. M1 can be the minimum adjustment ratio for a single operation (a value that can be, but is not limited to, 4%), and M2 can be the maximum adjustment ratio for a single operation (a value that can be, but is not limited to, 25%).

[0145] Optionally, the formula for the target open ratio is: Target_proportion = tuning + value_proportion;

[0146] Here, Target_proportion represents the target opening ratio, and value_proportion represents the current opening ratio of the control valve.

[0147] To ensure minimum water inflow to the fertilizer tank and minimum water flow to the main pipeline, the opening ratio of the control valve needs to be limited to prevent fertilization operations from being disrupted. In one optional implementation, when the target opening ratio Target_proportion falls within the range [M3, M4], Target_proportion remains unchanged; when Target_proportion is less than M3, Target_proportion is adjusted to M3; when Target_proportion is greater than M4, Target_proportion is adjusted to M4. M3 and M4 are preset coefficients; the value of M3 can be, but is not limited to, 25%, and the value of M4 can be, but is not limited to, 75%.

[0148] S930 adjusts the opening ratio of the control valve according to the adjustment ratio or target opening ratio.

[0149] Building upon the preceding text, this disclosure also provides an optional implementation method for correctly obtaining the expected concentration index parameters to ensure the accuracy of subsequent adjustments, as shown in Figure 9. S910, determining the expected concentration index parameters at the current moment based on the target concentration index parameters and the target remaining fertilization time includes: S911 and S912.

[0150] S911 divides the remaining fertilization time of the target into n time slices.

[0151] Where n is a positive integer, the target remaining fertilization time t2 at the target time = the user-set target total fertilization time t - the fertilization time already applied at the target time t1.

[0152] Optionally, the remaining target fertilization time can be divided into n time slices according to a preset time length. If fertilization is paused during the fertilization process, the remaining target fertilization time t2 = the user-set total target fertilization time t + pause time - the fertilization time already applied at the target time t1. It should be noted that when the user extends the fertilization time, the user-set total target fertilization time t will also extend accordingly.

[0153] S912 determines the expected concentration parameters for the current moment based on the expected fertilizer solution volume ratio, target concentration parameters, and the time segment number corresponding to the current moment for each time slice.

[0154] Regarding how to determine the expected fertilizer solution volume ratio for each time slot, optimize the concentration decay rate during fertilization, and make the fertilizer concentration change more gradual at different time periods to improve the fertilization effect of the fertilizer solution, this disclosure also provides an optional implementation method. Please continue to refer to Figure 9. After determining the target concentration index parameters, the fertilization operation control method further includes: S60 and S70.

[0155] S60, determine the reference value for the end of fertilization based on the baseline value of the concentration index and / or the target concentration index parameter.

[0156] The concentration benchmark value represents the concentration parameter in the main pipeline under clean water conditions before actual fertilization begins. The fertilization end reference value represents the theoretical value of the concentration parameter characterizing the fertilizer solution concentration after the fertilizer application is complete, i.e., after fertilization is finished. In other words, it refers to the reference concentration value that the fertilizer solution needs to reach at the end of fertilization. At the end of fertilization, the solid fertilizer or fertilizer concentrate in the fertilization container is usually almost completely dissipated, and the fertilizer solution concentration will drop to a relatively low value. Therefore, the fertilization end reference value can be determined, and the opening ratio of the control valve can be adjusted in real time based on this reference value to control the fertilization rate to tend to be gradual at the end of fertilization.

[0157] Optionally, a reference value for the end of fertilization can be determined, and then the real-time concentration index parameter detected by the fertilizer solution detection device can be compared with the reference value for the end of fertilization. This allows for accurate and timely determination of whether the fertilizer in the fertilization container has been applied (fertilization is complete). When the real-time concentration index parameter is less than the reference value for the end of fertilization, or when the difference between the real-time concentration index parameter and the reference value for the end of fertilization is less than the corresponding difference threshold, it can be determined that fertilization has been completed. In this case, the control valve can be adjusted to control the end of fertilization.

[0158] Optionally, a baseline value for the concentration index can be determined as the reference value for conductivity at the end of fertilization. Then, the real-time conductivity detected by the fertilizer solution detection device is compared with this reference value to accurately and promptly determine whether fertilization has been completed. Fertilization is considered complete when the real-time conductivity is less than the reference value, or when the difference between the real-time conductivity and the reference value is less than the corresponding difference threshold. Alternatively, a baseline value for the concentration index can be determined as the reference value for pH at the end of fertilization. Then, the real-time pH detected by the fertilizer solution detection device is compared with this reference value to accurately and promptly determine whether fertilization has been completed. Fertilization is considered complete when the real-time pH is less than the reference value, or when the difference between the real-time pH and the reference value is less than the corresponding difference threshold.

[0159] Optionally, the formulas for the reference values ​​of conductivity and pH at the end of fertilization are: Ec_ending=Ec_water+(Ec_max-Ec_water)×K1; PH_ending=PH_water+K2);

[0160] Wherein, Ec_ending represents the reference value of conductivity at the end of fertilization, PH_ending represents the reference value of pH at the end of fertilization, Ec_wate represents the baseline value of conductivity, PH_water represents the baseline value of pH, Ec_max represents the extreme value of conductivity, K1 and K2 are set coefficients, the value of K1 can be, but is not limited to, 5%, and the value of K2 can be, but is not limited to, 0.05.

[0161] When the target parameter for subsequent adjustments is the electrical conductivity of the fertilizer solution, the target concentration index parameter is the electrical conductivity extreme value, and the fertilization end reference value value_ending is the fertilization end electrical conductivity reference value Ec_ending; when the target parameter for subsequent adjustments is the pH of the fertilizer solution, the target concentration index parameter is the pH extreme value, and the fertilization end reference value value_ending is the fertilization end pH pH reference value PH_ending.

[0162] S70 determines the expected volume ratio of fertilizer solution to be applied in each time segment based on the reference value at the end of fertilization, the target concentration index parameters, and the number of time segments.

[0163] The formula for calculating the expected fertilizer volume ratio for each time slice can be: vm = 1 - (value_ending ÷ value_max) 1 / n ;

[0164] Where vm represents the expected volume ratio of fertilizer solution to be applied in each time slice, value_ending represents the reference value for the end of fertilization, value_max represents the target concentration index parameter, and n is the number of time slices.

[0165] Based on the foregoing, regarding the content of S90, this disclosure also provides an optional implementation method, please refer to the following. S90, adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time, includes: S901, S902 and S903.

[0166] S901 determines the expected concentration parameters at the current moment based on real-time concentration parameters and the target remaining fertilization time.

[0167] S902 determines the adjustment ratio or target opening ratio of the control valve based on real-time concentration index parameters, expected concentration index parameters, and adjustment coefficients.

[0168] S903 adjusts the opening ratio of the control valve according to the adjustment ratio or target opening ratio.

[0169] Optionally, S901 determines the expected concentration index parameters at the current moment based on the real-time concentration index parameters and the target remaining fertilization time, including: S901-1 and S901-2, or including S901-1 and S901-3.

[0170] S901-1 divides the remaining fertilization time of the target into n time slices.

[0171] Where n is a positive integer;

[0172] S901-2, determine the expected concentration parameters for the current moment based on the remaining time slice, the time slice number, the real-time concentration parameters, and the fertilization end reference value.

[0173] Optionally, the formula for the expected concentration index parameter at the current moment is: value_i = value o ×(1-vm) i ;

[0174] Where, value_i represents the expected concentration index parameter at the current moment, which is the expected concentration index parameter corresponding to the current time slice to which the current moment belongs, and the current moment belongs to the i-th time slice, where i represents the sequence number of the current time slice; value_ending represents the reference value for the end of fertilization; n is the number of time slices, n i The remaining time slice corresponding to the current moment, value o This indicates the real-time concentration index parameters corresponding to the current time slice or the current moment.

[0175] or;

[0176] S901-3, the expected concentration parameters for the current moment are determined based on the remaining time slice of the previous time slice, the time slice number of the previous time slice, the real-time concentration index parameters of the previous time slice, and the reference value for the end of fertilization.

[0177] Optionally, the formula for the expected concentration index parameter at the current moment is: value_i = value -1 ×(1-vm) i ;

[0178] Where, value_i represents the expected concentration index parameter at the current moment, which is the expected concentration index parameter corresponding to the current time slice to which the current moment belongs, and the current moment belongs to the i-th time slice, where i represents the sequence number of the current time slice; value_ending represents the reference value for the end of fertilization; n is the number of time slices, n i-1 The value represents the remaining time slice corresponding to the previous time slice at the current moment. -1 This indicates the real-time concentration index parameter at the start of the current time slice, which is the end time of the previous time slice.

[0179] Building upon the preceding text, regarding the content in S90, how to determine the adjustment ratio or target opening ratio of the control valve, thereby ensuring the accuracy of the control valve's opening ratio adjustment, optimizing the concentration decay rate during fertilization, making the fertilizer concentration changes more gradual over different time periods, and improving the fertilization effect of the fertilizer solution. This disclosure also provides an optional implementation method; please refer to Figure 10. The fertilization operation control method further includes: S60, determining the fertilization end reference value based on the concentration index benchmark value and / or target concentration index parameters.

[0180] It should be noted that S60 is set in both Figure 10 and Figure 9, and the execution method is the same, so it will not be described in detail here.

[0181] Continuing to refer to Figure 10, S90, the opening ratio of the control valve is adjusted in real time according to the real-time concentration index parameters and the target remaining fertilization time corresponding to the target time, including: S940 and S950.

[0182] S940 divides the remaining target fertilization time into multiple time slices according to the preset time length.

[0183] S950 adjusts the opening ratio of the control valve in real time based on the real-time concentration index parameters, the fertilization end reference value, the number of time slices, and the target concentration index parameters corresponding to the target time at the end of the current time slice.

[0184] Optionally, regarding the content in S950, this disclosure also provides an optional implementation method, please refer to the following. The opening ratio of the control valve is adjusted in real time according to the real-time concentration index parameters, the fertilization end reference value, the number of time slices, and the target concentration index parameters corresponding to the target time, including: S951, S952, and S953.

[0185] S951, based on the fertilization end reference value, the number of time slices, the target concentration index parameters, and the current time slice number, determine the expected concentration index parameters corresponding to the current time slice.

[0186] Optionally, the formula for the expected concentration index parameter is: value_i = value_max × (1 - vm) i ; vm=1-(value_ending÷value_max) 1 / n ;

[0187] Where, value_i represents the expected concentration index parameter corresponding to the i-th time slice, the expected concentration index parameter at the current moment is the expected concentration index parameter corresponding to the current time slice to which the current moment belongs, the current moment belongs to the i-th time slice, and i represents the sequence number of the current time slice; value_max represents the target concentration index parameter, value_ending represents the reference value for the end of fertilization; n is the number of time slices.

[0188] S952 determines the adjustment ratio or target opening ratio of the control valve based on the expected concentration index parameter, the real-time concentration index parameter at the end of the current time slice, and the adjustment coefficient.

[0189] It should be noted that the methods for determining the adjustment ratio or target opening ratio of the control valve in S952 and S920 are the same; the only difference lies in the value. oThis represents the real-time concentration index parameter at the end of the current time slice, and value_i represents the expected concentration index parameter corresponding to the current time slice. The i-th time slice is the time slice corresponding to the current time, and the current time is the end of the current time slice. Other parts that are the same will not be described here.

[0190] S953, adjusts the opening ratio of the control valve according to the adjustment ratio or target opening ratio.

[0191] Based on the foregoing, regarding how to ensure that the fertilizer in the fertilizer container can be applied within a specified time without user operation, and to accurately and timely determine whether the fertilizer in the fertilizer tank has been applied, this disclosure also provides an optional implementation method. After S60, S80 can be executed to determine whether the conditions for real-time adjustment are met. If the conditions are met, S90 is executed.

[0192] Based on this, regarding the content in S80, this disclosure also provides an optional implementation method. Please refer to Figure 11. The fertilization operation control method further includes: S802, S803, S804, S805, S806 and S807.

[0193] S802, determine if the end time of the current time slice is earlier than the set end time of fertilization. If yes, execute S803; otherwise, it means that the fertilization operation has been completed and ends.

[0194] It should be noted that, without pausing the operation, if the start time of fertilization is already determined, the set end time of fertilization corresponds to the total target fertilization duration set by the user. If the operation is paused, the set end time of fertilization will be postponed according to the pause duration.

[0195] It should be noted that when executing S80, it is necessary to combine the calculation with time slices. Therefore, before executing S80, S801 can be executed first to divide the remaining fertilization time of the target into n time slices. In this case, if S90 as shown in Figures 9 and 10 is executed, the remaining fertilization time of the target can be divided into n (or more) time slices without repetition.

[0196] S803 estimates the theoretical end time of fertilization based on the real-time concentration index parameters at the end of the current time slice, the real-time concentration index parameters at the beginning of the current time slice, the concentration index baseline value, and the fertilization end reference value.

[0197] S804, determine whether the theoretical end time is later than the fertilization end time set. If yes, proceed to S805; otherwise, proceed to S806.

[0198] If the theoretical end time is later than the set end time for fertilization, it indicates that the current fertilization rate is lower than the expected fertilization rate. It is necessary to determine whether the control valve has room for adjustment to increase the fertilization rate, so S805 is executed. If the theoretical end time is earlier than the set end time for fertilization, it indicates that the current fertilization rate is higher than the expected fertilization rate. In this case, it is necessary to confirm whether the fertilization rate is too fast, so S806 is executed.

[0199] S805, determine whether the current opening ratio of the control valve is less than or equal to the second preset ratio. If yes, proceed to S807; if no, it indicates that the conditions for real-time adjustment are met, and proceed to S90.

[0200] Optionally, the first preset ratio and the second preset ratio can both be the same, which is 25%. Of course, they can also be different.

[0201] It should be noted that if the current opening ratio is less than or equal to the second preset ratio, it means that the maximum fertilization speed has been reached. At this time, the fertilization speed can no longer be increased by adjusting the control valve, and the fertilization operation may not be completed within the specified time. S807 needs to be executed.

[0202] It should be noted that in the control valve provided in this embodiment, the smaller the opening ratio, the faster the corresponding fertilization speed.

[0203] If the current opening ratio is greater than the second preset ratio, then execute S90, which is to perform the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameters and the target remaining fertilization time corresponding to the target time.

[0204] S806: Determine if the advance time is greater than the preset time threshold. If yes, it means the conditions for real-time adjustment are met, and execute S90; otherwise, determine that the current time slice does not need adjustment (control valve opening ratio).

[0205] The preset time threshold can be 300 seconds.

[0206] If the advance time is less than or equal to the preset time threshold, it indicates that the fertilization speed is relatively uniform and the fertilization operation can be completed within the target total fertilization time. Therefore, it is determined that the current time slice does not need to be adjusted.

[0207] If the theoretical end time is earlier than the set end time of fertilization, and the advance duration is longer than the preset time threshold, execute S90, which is to perform the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameters and the target remaining fertilization duration corresponding to the target time.

[0208] S807 prompts the user to extend the target total fertilization time.

[0209] It should be understood that the set time for ending fertilization will also change accordingly after the total target fertilization duration is extended.

[0210] Based on the foregoing, regarding how to accurately obtain the theoretical end time to ensure the accuracy of fertilization operation control, this disclosure also provides an optional implementation method. Please refer to S803 below. Based on the real-time concentration index parameters at the end time of the current time slice, the real-time concentration index parameters at the beginning time of the current time slice, the concentration index benchmark value, and the fertilization end reference value, the theoretical end time of fertilization is estimated, including: S803-1, S803-2, and S803-3.

[0211] S803-1, based on the real-time concentration index parameters at the end of the current time slice, the real-time concentration index parameters at the beginning of the current time slice, and the concentration index baseline value, determine the change value of fertilizer application within the current time slice.

[0212] Optionally, the formula for calculating the change in fertilizer application within the current time slice is: 1-v=(value0-value_water) / (value -1 -value_water);

[0213] Where v represents the change in fertilizer application within the current time slice, and value o The value represents the real-time concentration index parameter at the end of the current time slice. -1 This indicates the real-time concentration index parameter at the start of the current time slice, which is the end time of the previous time slice. value_water represents the baseline value of the concentration index, which represents the concentration index parameter in the main pipeline under the condition of clean water before actual fertilization.

[0214] S803-2, based on the change value of fertilizer application, the real-time concentration index parameters at the start of the current time slice, the baseline value of the concentration index, and the reference value for the end of fertilization, determine the theoretical remaining fertilization time before the end of fertilization.

[0215] Optionally, the formula for the theoretical remaining fertilization time after fertilization is completed is: tm = log (1-v) [(value_ending-value_water)÷(value -1 -value_water)];

[0216] Where tm represents the theoretical remaining fertilization time after fertilization ends, and value_ending represents the reference value for fertilization end, which represents the theoretical value of the concentration index parameter in the main pipeline after fertilization is completed.

[0217] S803-3, determine the theoretical end time of fertilization based on the current end time of the time slice and the theoretical remaining fertilization time.

[0218] Based on the foregoing, regarding the content in S80, this disclosure also provides an optional implementation method. Please refer to Figure 12. The fertilization operation control method further includes: S808, S809, S8110, S811, and S812.

[0219] S808 divides the remaining fertilization time of the target into n time slices.

[0220] Where n is a positive integer.

[0221] S809 determines the theoretical remaining fertilization time at the current moment based on the real-time concentration index parameters at the current moment, the real-time concentration index parameters at the previous moment, the concentration index baseline value, and the fertilization end reference value.

[0222] Among them, the concentration index benchmark value represents the concentration index parameter in the main pipeline under the clear water state before actual fertilization begins, and the fertilization end reference value represents the theoretical value of the concentration index parameter characterizing the fertilizer solution concentration after the fertilizer is applied, that is, after fertilization ends.

[0223] S810: Determine whether the theoretical remaining fertilization time at the current moment is greater than the actual remaining fertilization time at the current moment. If yes, execute S811 or S90; otherwise, execute S812.

[0224] The actual remaining fertilization time at the current moment is the time between the current moment and the set time for the end of fertilization.

[0225] If the theoretical remaining fertilization time at the current moment is greater than the actual remaining fertilization time at the current moment, then determine whether the current opening ratio of the control valve is less than or equal to the second preset ratio. If yes, then execute S811; if no, then execute S90, that is, execute the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time.

[0226] S811, execute the prompt operation, the prompt operation is configured to prompt the user to extend the target total fertilization time.

[0227] S812, determine whether the theoretical remaining fertilization time is greater than the difference between the actual remaining fertilization time and the preset value. If yes, proceed to S90; otherwise, determine that the current time slice does not need adjustment.

[0228] The preset value can be, but is not limited to, 300 seconds. If the theoretical remaining fertilization time at the current moment is less than or equal to the actual remaining fertilization time at the current moment, and greater than the difference between the actual remaining fertilization time at the current moment and the preset value, then the current opening ratio of the control valve will continue to be maintained for fertilization.

[0229] If the theoretical remaining fertilization time at the current moment is less than or equal to the difference between the actual remaining fertilization time at the current moment and the preset value, then the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time will be executed.

[0230] Based on the foregoing, this disclosure also provides an optional implementation method for determining whether fertilization has ended. Please refer to Figure 13. The fertilization operation control method further includes S815.

[0231] S815: Based on the real-time concentration index parameters and the concentration index benchmark value, determine whether the concentration of the fertilizer solution has decreased below the concentration index benchmark value or the reference value for the end of fertilization. If yes, end fertilization; otherwise, proceed to S90.

[0232] Please refer to Figure 14. In one optional embodiment, the fertilization operation control method further includes S11, S12 and S20.

[0233] S11, Obtain the first detection data of the concentration index parameter of the fertilizer solution detection device.

[0234] Optionally, the first detection data includes conductivity and pH collected during the pre-collection period. The pre-collection period is before the start time. During the specified time before this period, the valves on the main pipeline before the control valve and the corresponding fertilizer tank valves are all in the closed state, thereby ensuring the accuracy of the concentration index benchmark value.

[0235] S12, determine the baseline value of the concentration index based on the first detection data.

[0236] Among them, the concentration index benchmark values ​​include conductivity benchmark values ​​and pH benchmark values.

[0237] The average, median, and minimum values ​​of conductivity obtained during the pre-collection period are used as the conductivity reference value; the average, median, and minimum values ​​of pH obtained during the pre-collection period are used as the pH reference value.

[0238] It should be noted that the baseline value of the concentration index and the reference value at the end of fertilization can also be the experience value set by the user.

[0239] S20, at a preset opening time, adjust the opening ratio of the control valve to the first preset ratio.

[0240] In the irrigation system disclosed herein, adjusting the opening ratio of the control valve to a first preset ratio allows water to be transported from the main pipeline to the fertilizer container for fertilizer solution output. Before adjusting the opening ratio of the control valve to the first preset ratio, clean water is transported in the main pipeline; that is, before adjusting the opening ratio of the control valve to the first preset ratio, the fertilizer container does not output fertilizer solution. During the period when no fertilizer solution is output, the concentration index benchmark value can be determined based on the first detection data of the concentration index parameter detected by the fertilizer solution detection device. After adjusting the opening ratio of the control valve to the first preset ratio, the fertilizer container... The device will output fertilizer solution, and the concentration index parameters detected by the fertilizer solution detection device can be used to determine whether the fertilizer container is outputting fertilizer solution normally. If the conductivity or pH increases, it indicates that the fertilizer solution concentration detected by the fertilizer solution detection device has increased, indicating that the fertilizer container is outputting fertilizer solution normally. This judgment can be based on the concentration index parameters detected by the fertilizer solution detection device before and after the control valve opening ratio is adjusted to the first preset ratio. That is, the concentration index benchmark value can be used as the comparison benchmark value. The concentration index benchmark value can be understood as the liquid concentration parameter detected by the fertilizer solution detection device during the water injection stage before the fertilizer container actually outputs fertilizer solution.

[0241] The system can determine a baseline value for the concentration index, and then compare the real-time concentration index parameter detected by the fertilizer solution detection device with the baseline value to accurately and timely determine whether fertilizer application has started (when the fertilizer solution is successfully output from the fertilizer container). When the real-time concentration index parameter is greater than the baseline value, or when the difference between the real-time concentration index parameter and the baseline value is greater than the corresponding difference threshold, it can be determined that fertilization has started.

[0242] Optionally, the concentration index benchmark value can be determined as the conductivity benchmark value. Then, the real-time conductivity detected by the fertilizer solution detection device is compared with the conductivity benchmark value to accurately and promptly determine whether fertilizer application has begun. Fertilization can begin when the real-time conductivity is greater than the conductivity benchmark value, or when the difference between the real-time conductivity and the conductivity benchmark value is greater than the corresponding difference threshold. Alternatively, the concentration index benchmark value can be determined as the pH benchmark value. Then, the real-time pH detected by the fertilizer solution detection device is compared with the pH benchmark value to accurately and promptly determine whether fertilizer application has begun. Fertilization can begin when the real-time pH is greater than the pH benchmark value, or when the difference between the real-time pH and the pH benchmark value is greater than the corresponding difference threshold.

[0243] Based on the foregoing, regarding the content in S80, this disclosure also provides an optional implementation method. Please refer to Figure 15. The fertilization operation control method further includes S813 and S814.

[0244] S813 determines the expected concentration parameters at the current moment based on the target concentration parameters and the target remaining fertilization time.

[0245] S814: Determine if there is a preset deviation between the current real-time concentration index parameter and the expected concentration index parameter. If yes, proceed to S90, which involves adjusting the opening ratio of the control valve in real time based on the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time. If no, no adjustment is needed at the current time.

[0246] If the real-time concentration index parameter at the current moment deviates from the expected concentration index parameter, it indicates that the fertilization rate is too fast or too slow, and adjustments are needed to achieve a relatively stable fertilization rate.

[0247] Optionally, the preset deviation includes any of the following:

[0248] The current real-time concentration index parameter is lower than the expected concentration index parameter;

[0249] The current real-time concentration index parameter is greater than the expected concentration index parameter;

[0250] The absolute value of the difference between the current real-time concentration index parameter and the expected concentration index parameter is greater than the preset deviation threshold.

[0251] Optionally, if the real-time concentration index parameter at the current moment is less than the expected concentration index parameter, the injection volume is reduced (controlling the pressure difference value of the control valve body to control the water flow rate entering the fertilizer tank, thereby controlling the fertilizer concentration decay rate); otherwise, the injection volume is increased.

[0252] Please refer to Figure 16, which is a schematic diagram comparing the operation provided in the embodiments of this disclosure. It can be seen that, compared with manual fertilization, the fertilization operation control method provided in the embodiments of this disclosure results in more uniform changes in fertilizer concentration and better fertilization effect. The electrical conductivity Ec is used as an example in Figure 16.

[0253] Please refer to Figure 17, which shows a fertilization operation control device provided in an embodiment of this disclosure. Optionally, the fertilization operation control device is applied to the electronic device described above.

[0254] The fertilization operation control device includes: a first processing unit 1001 and a second processing unit 1002.

[0255] The first processing unit is configured to acquire real-time concentration index parameters detected by the fertilizer solution detection device.

[0256] The first processing unit is also configured to determine the target time when the fertilizer solution concentration reaches the maximum concentration value based on real-time concentration index parameters.

[0257] The second processing unit is configured to adjust the opening ratio of the control valve in real time according to the real-time concentration index parameters and the target remaining fertilization time corresponding to the target time after determining the target time when the fertilizer solution concentration reaches the target maximum concentration value.

[0258] Optionally, the second processing unit 1002 may execute S20 and S90 as described above; the first processing unit 1001 may execute the other steps described above.

[0259] It should be noted that the fertilization operation control device provided in this embodiment can execute the method flow shown in the above-described method flow embodiment to achieve the corresponding technical effects. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in the above-described embodiments.

[0260] This disclosure also provides a storage medium storing computer instructions and programs, which, when read and executed, perform the fertilization operation control method described above. The storage medium may include memory, flash memory, registers, or a combination thereof.

[0261] The following provides an electronic device, which can be a control device in a fertilization system, a controller in a control valve, or a device such as a mobile phone, computer, or server that is communicatively connected to the control device (or controller). As shown in Figure 4, this electronic device can implement the fertilization operation control method described above. Optionally, the electronic device includes: a processor 10, a memory 11, and a bus 12. The processor 10 can be a CPU. The memory 11 is configured to store one or more programs, which, when executed by the processor 10, execute the fertilization operation control method of the above embodiment.

[0262] In summary, the embodiments of this disclosure provide a fertilization operation control method, apparatus, medium, equipment, and system. The fertilization system includes a main pipeline, a fertilization container, a control valve located on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of fertilizer solution delivery from the fertilization container to the main pipeline. The fertilizer solution detection device is configured to detect the concentration index parameter of the fertilizer solution, which characterizes the fertilizer solution concentration. The system acquires the real-time concentration index parameter detected by the fertilizer solution detection device. Based on the real-time concentration index parameter, it determines the target time when the fertilizer solution concentration reaches its maximum value. After determining the target time when the fertilizer solution concentration reaches its maximum value, it adjusts the opening ratio of the control valve in real-time according to the real-time concentration index parameter and the target remaining fertilization time. By automatically adjusting the opening ratio of the control valve in real-time based on the target concentration index parameter, the real-time concentration index parameter, and the target remaining fertilization time, the number of times the control valve needs to be manually adjusted is reduced, improving ease of use. By optimizing the concentration decay rate during the fertilization process through real-time adjustment, the fertilizer concentration change over different time periods is made smoother, improving the fertilization effect of the fertilizer solution.

[0263] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

[0264] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims. Industrial applicability

[0265] This disclosure provides a fertilization operation control method, apparatus, medium, equipment, and system. The fertilization system includes a main pipeline, a control valve located on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect the concentration index parameter of the fertilizer solution, which characterizes the fertilizer solution concentration. The system acquires the real-time concentration index parameter detected by the fertilizer solution detection device; determines the target time when the fertilizer solution concentration reaches its maximum value based on the real-time concentration index parameter; and adjusts the opening ratio of the control valve in real-time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time. By automatically adjusting the opening ratio of the control valve in real-time based on the target concentration index parameter, the real-time concentration index parameter, and the target remaining fertilization time, the number of times the control valve is manually adjusted is reduced, improving ease of use. By optimizing the decay rate of the fertilizer solution concentration during the fertilization process in real-time, the fertilizer concentration changes more gradually over different time periods, achieving accurate control of the fertilization rate and improving the fertilization effect of the fertilizer solution.

Claims

1. A fertilization operation control method characterized by comprising: An application is made in a fertilization system, the fertilization system including a main pipeline, a control valve installed on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect a concentration parameter of the fertilizer solution, the concentration parameter being configured to characterize the fertilizer solution concentration. The method includes: Obtain the real-time concentration parameters detected by the fertilizer solution detection device; Determine the target time when the fertilizer solution concentration reaches its maximum value based on the real-time concentration index parameters. After determining the target time when the fertilizer solution concentration reaches the maximum concentration value, the opening ratio of the control valve is adjusted in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time.

2. The fertilizing operation control method according to claim 1, characterized by, The concentration parameters include conductivity or pH, and the method further includes: When the conductivity reaches its extreme value based on the real-time concentration index parameters, the fertilizer solution concentration is determined to have reached its maximum concentration value; or... When the pH value reaches an extreme value based on the real-time concentration index parameters, the fertilizer solution concentration is determined to have reached its maximum concentration value.

3. The fertilizing operation control method according to claim 1, characterized by, The concentration parameters include conductivity and pH, and the method further includes: The rate of change of at least one of conductivity and pH during the fertilization process is determined based on the real-time concentration index parameters. If the rate of change of one of the values ​​in the first preset time period is less than or equal to the corresponding rate of change threshold, then it is determined whether the other value has reached an extreme value. If so, it is determined that the fertilizer concentration has reached the maximum concentration value. Alternatively, if the rate of change of one of the values ​​in the first preset time period is greater than the corresponding rate of change threshold, then it is determined whether the extreme value has been reached based on the concentration index parameter. If so, then it is determined that the fertilizer concentration has reached the maximum concentration value.

4. The fertilizing work control method according to claim 1, characterized by, The concentration parameters include conductivity and pH, and the method further includes: Determine whether a first preset relationship exists between the real-time conductivity and the conductivity benchmark value based on the real-time concentration index parameters; If so, then based on the conductivity in the real-time concentration index parameter, determine whether the conductivity has reached an extreme value; if so, determine that the fertilizer solution concentration has reached the maximum concentration value.

5. The fertilizing operation control method according to any one of claims 1 to 4, characterized by, The step of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time includes: The expected concentration index parameter at the current moment is determined based on the target concentration index parameter and the target remaining fertilization time, wherein the target concentration index parameter is the concentration index parameter corresponding to the target time. The adjustment ratio or target opening ratio of the control valve is determined based on the real-time concentration index parameters at the current moment, the expected concentration index parameters, and the adjustment coefficient. The opening ratio of the control valve is adjusted according to the adjustment ratio or the target opening ratio.

6. The fertilizing operation control method according to claim 5, characterized by, The step of determining the expected concentration index parameter at the current moment based on the target concentration index parameter and the target remaining fertilization time includes: The remaining fertilization time for the target is divided into n time slices, where n is a positive integer; The expected concentration parameters for the current moment are determined based on the expected volume ratio of fertilizer solution to be applied in each time slice, the target concentration index parameters, and the time slice number corresponding to the current moment.

7. The fertilizing operation control method according to claim 6, characterized by, The method further includes: Determine the reference value for the end of fertilization based on the baseline value of the concentration index and / or the target concentration index parameter; The expected volume ratio of fertilizer solution to be applied in each time slot is determined based on the fertilization end reference value, the target concentration index parameter, and the number of time slots.

8. The fertilizing operation control method according to any one of claims 1 to 4, characterized by, The step of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time includes: The expected concentration parameters at the current moment are determined based on the real-time concentration index parameters and the target remaining fertilization time. The adjustment ratio or target opening ratio of the control valve is determined based on the real-time concentration index parameter, the expected concentration index parameter, and the adjustment coefficient. The opening ratio of the control valve is adjusted according to the adjustment ratio or the target opening ratio.

9. The application method control method according to Claim 8, characterized by, The step of determining the expected concentration index parameter at the current moment based on the real-time concentration index parameter and the target remaining fertilization time includes: The remaining fertilization time for the target is divided into n time slices, where n is a positive integer; The expected concentration parameters for the current moment are determined based on the remaining time slice, the time slice number, the real-time concentration parameters, and the fertilization end reference value; or, the expected concentration parameters for the current moment are determined based on the remaining time slice, the time slice number, the real-time concentration parameters, and the fertilization end reference value of the previous time slice.

10. The fertilizing operation control method according to any one of claims 1 to 4, characterized by, The method further includes: Determine the reference value for the end of fertilization based on the baseline value of the concentration index and / or the target concentration index parameter; The step of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time includes: The remaining fertilization time of the target is divided into multiple time slices according to the preset time length; At the end of the current time slice, the opening ratio of the control valve is adjusted in real time according to the real-time concentration index parameter, the fertilization end reference value, the number of time slices, and the target concentration index parameter corresponding to the target time.

11. The fertilizing operation control method according to claim 10, characterized by, The step of adjusting the opening ratio of the control valve in real time based on the real-time concentration index parameter, the fertilization end reference value, the number of time slices, and the target concentration index parameter corresponding to the target time includes: Based on the fertilization end reference value, the number of time slices, the target concentration index parameters, and the sequence number of the current time slice, determine the expected concentration index parameters corresponding to the current time slice; The adjustment ratio or target opening ratio of the control valve is determined based on the expected concentration index parameter, the real-time concentration index parameter at the end of the current time slice, and the adjustment coefficient. The opening ratio of the control valve is adjusted according to the adjustment ratio or the target opening ratio.

12. The application method control method of claim 10, wherein The method further includes: If the end time of the current time slice is earlier than the set end time of fertilization, the theoretical end time of fertilization is estimated based on the real-time concentration index parameters at the end time of the current time slice, the real-time concentration index parameters at the start time of the current time slice, the concentration index baseline value, and the fertilization end reference value. When the theoretical end time is later than the fertilization end set time, determine whether the current opening ratio of the control valve is less than or equal to the second preset ratio; If the current open ratio is less than or equal to the second preset ratio, the user is prompted to extend the target total fertilization time. If the current opening ratio is greater than the second preset ratio, then the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time is executed.

13. The application method control method of claim 12, wherein The method of estimating the theoretical end time of fertilization based on the real-time concentration index parameters at the end of the current time slice, the real-time concentration index parameters at the beginning of the current time slice, the concentration index baseline value, and the fertilization end reference value includes: Based on the real-time concentration index parameters at the end of the current time slice, the real-time concentration index parameters at the beginning of the current time slice, and the baseline value of the concentration index, the change value of fertilizer application within the current time slice is determined. Based on the change in fertilizer application rate, the real-time concentration index parameters at the start of the current time slice, the baseline value of the concentration index, and the reference value for the end of fertilization, the theoretical remaining fertilization time is determined. The theoretical end time of fertilization is determined based on the end time of the current time slice and the theoretical remaining fertilization time.

14. The application method control method of claim 13, wherein The method further includes: When the theoretical end time is earlier than the fertilization end time set time and the advance duration is greater than a preset time threshold, the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization duration corresponding to the target time is executed.

15. The fertilizing work control method according to any one of claims 1 to 4, characterized by, The method further includes: The remaining fertilization time for the target is divided into n time slices, where n is a positive integer; The theoretical remaining fertilization time at the current moment is determined based on the real-time concentration index parameters at the current moment, the real-time concentration index parameters at the previous moment, the concentration index baseline value, and the fertilization end reference value. The concentration index baseline value represents the concentration index parameters in the main pipeline under the clear water state before actual fertilization begins, and the fertilization end reference value represents the theoretical value of the concentration index parameters characterizing the fertilizer solution concentration after the fertilizer is applied, i.e., after fertilization ends. If the theoretical remaining fertilization time at the current moment is greater than the actual remaining fertilization time at the current moment, a prompting operation is performed, which is configured to prompt the user to extend the target total fertilization time; or, the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time is performed.

16. The application method control method of claim 15, wherein The method further includes: If the theoretical remaining fertilization time at the current moment is less than or equal to the actual remaining fertilization time at the current moment, and greater than the difference between the actual remaining fertilization time at the current moment and a preset value, then the current opening ratio of the control valve will continue to be maintained for fertilization; and / or, If the theoretical remaining fertilization time at the current moment is less than or equal to the difference between the actual remaining fertilization time at the current moment and the preset value, then the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time is executed.

17. The fertilizing operation control method according to any one of claims 1 to 4, characterized by, The method further includes: Based on the real-time concentration index parameters and the concentration index benchmark value, determine whether the concentration of the fertilizer solution has decreased to below the concentration index benchmark value or the reference value for the end of fertilization; if so, end fertilization.

18. The fertilizing work control method according to any one of claims 1 to 4, characterized by, The method further includes: At a preset opening time, the opening ratio of the control valve is adjusted to a first preset ratio.

19. The application method control method of claim 18, wherein Before adjusting the opening ratio of the control valve to the first preset ratio, the method further includes: Obtain the first detection data of the concentration index parameters detected by the fertilizer solution detection device; The baseline value of the concentration index is determined based on the first detection data.

20. The fertilizing work control method according to any one of claims 1 to 4, characterized by, The method further includes: The expected concentration parameters at the current moment are determined based on the target concentration index parameters and the remaining fertilization time. If the real-time concentration index parameter at the current moment deviates from the expected concentration index parameter by a preset margin; Then, the operation of adjusting the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time is executed.

21. The application method control method of claim 20, wherein The preset deviation includes any one of the following: The current real-time concentration index parameter is less than the expected concentration index parameter; The current real-time concentration index parameter is greater than the expected concentration index parameter; The absolute value of the difference between the current real-time concentration index parameter and the expected concentration index parameter is greater than a preset deviation threshold.

22. A fertilizer application operation control device characterized by comprising: An application is made in a fertilization system, the fertilization system including a main pipeline, a control valve installed on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect a concentration parameter of the fertilizer solution, the concentration parameter being configured to characterize the fertilizer solution concentration. The device includes: The first processing unit is configured to acquire the real-time concentration index parameters detected by the fertilizer solution detection device. The first processing unit is also configured to determine the target time when the fertilizer solution concentration reaches the maximum concentration value based on the real-time concentration index parameters. The second processing unit is configured to, after determining the target time when the fertilizer solution concentration reaches the maximum concentration value, adjust the opening ratio of the control valve in real time according to the real-time concentration index parameter and the target remaining fertilization time corresponding to the target time.

23. A computer readable storage medium having stored thereon a computer program, characterized in that, When the computer program is executed by a processor, it implements the method as described in any one of claims 1-21.

24. An electronic device, comprising: include: A processor and memory, the memory being configured to store one or more programs; When the one or more programs are executed by the processor, the method as described in any one of claims 1-21 is implemented.

25. A fertilizing system characterized in that, The fertilization system includes a main pipeline, a control valve located on the main pipeline, and a fertilizer solution detection device. The control valve is configured to control the fertilization rate of the fertilizer solution, and the fertilizer solution detection device is configured to detect the concentration index parameter of the fertilizer solution. The concentration index parameter is configured to characterize the concentration of the fertilizer solution. The fertilization system is configured to perform the method according to any one of claims 1-21.

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