Methods, devices, and fertilizer applicators for adjusting the pH value of fertilizer solutions in fertilizer applicators.

Abstract

The application provides a method, device and fertilizer applicator for adjusting the PH value of a fertilizer solution in the fertilizer applicator. The method comprises: obtaining a target PH value of the fertilizer solution; detecting a water PH value of water in the fertilizer applicator; adjusting the PH value of the fertilizer solution by adjusting a parameter of the fertilizer applicator; determining an i-th adjustment parameter of the parameter of the fertilizer applicator according to an i-1st PH value of the fertilizer solution after i-1st adjustment, the water PH value and the target PH value; and adjusting the PH value of the fertilizer solution i times by the i-th adjustment parameter. In this scheme, the i-th adjustment parameter of the fertilizer applicator for the next PH adjustment is determined by using the PH value of the fertilizer solution after the last adjustment, the water PH value and the target PH value. The i-th adjustment parameter comprehensively considers the influence of the water PH value in the fertilizer applicator on the fertilizer solution and the difference between the current PH value and the target PH value, and can be dynamically adapted to the PH change of the fertilizer solution, which is beneficial to quickly and accurately adjusting the fertilizer solution to the target PH value.

Description

Technical Field

[0001] This application relates to the agricultural field, and more specifically, to a method, apparatus, and fertilizer applicator for adjusting the pH value of a fertilizer solution in a fertilizer applicator. Background Technology

[0002] A fertilizer applicator is a modern agricultural machine that precisely controls the amount and timing of fertilizer application to improve crop yield and quality. The pH value of fertilizer is an important indicator of its acidity or alkalinity and has a significant impact on plant growth and development. Different crops have different pH requirements for fertilizers; therefore, properly adjusting the pH value of fertilizers is one of the key factors in increasing crop yield.

[0003] Therefore, how to provide a method that can dynamically adjust the pH value of fertilizer solution to achieve precise irrigation is a technical problem that urgently needs to be solved. Summary of the Invention

[0004] This application provides a method, apparatus, and fertilizer applicator for adjusting the pH value of fertilizer solution in a fertilizer applicator, which can dynamically adjust the pH value of the fertilizer solution to achieve the purpose of precise irrigation.

[0005] In a first aspect, a method for adjusting the pH value of a fertilizer solution in a fertilizer applicator is provided, comprising: obtaining a target pH value of the fertilizer solution; detecting the pH value of the water in the fertilizer applicator; adjusting the pH value of the fertilizer solution by adjusting the parameters of the fertilizer applicator, wherein the fertilizer applicator parameters are parameters used in the fertilizer applicator to control the flow rate of the source fertilizer; determining an i-th adjustment parameter of the fertilizer applicator parameters based on the (i-1)-th pH value of the fertilizer solution after the (i-1)-th adjustment, the pH value of the water, and the target pH value, wherein i is a positive integer greater than 1; and adjusting the pH value of the fertilizer solution for the i-th time by the i-th adjustment parameter.

[0006] In the technical solution provided in this application embodiment, the parameters of the fertilizer applicator for the next pH adjustment are determined by using the pH value of the fertilizer solution after the previous adjustment, the pH value of the water, and the target pH value. These fertilizer applicator parameters comprehensively consider the influence of the pH value of the water in the fertilizer applicator on the fertilizer solution and the difference between the current pH value and the target pH value. Therefore, they can dynamically adapt to the pH changes of the fertilizer solution, which is conducive to quickly and accurately adjusting the fertilizer solution to the target pH value, thereby quickly achieving the purpose of precision irrigation.

[0007] In some possible implementations, determining the i-th adjustment parameter of the fertilizer applicator based on the (i-1)-th pH value of the fertilizer solution after the (i-1)-th adjustment, the pH value of the water, and the target pH value includes: comparing the pH value of the water with the target pH value to obtain a first comparison result; and determining the i-th adjustment parameter based on the first comparison result, the (i-1)-th pH value, the pH value of the water, and the target pH value.

[0008] The technical solution of this implementation method first determines the comparison result between the pH value of the water in the fertilizer applicator and the target pH value. Based on the comparison result, the subsequent adjustment direction is determined, which helps to improve the pH value adjustment efficiency and achieve rapid and precise irrigation.

[0009] In some possible implementations, determining the i-th adjustment parameter based on the first comparison result, the (i-1)-th pH value, the water pH value, and the target pH value includes: when the target pH value is equal to the water pH value, determining the i-th adjustment parameter as the minimum value of the parameter range that the fertilizer applicator can adjust; when the target pH value is not equal to the water pH value, comparing the (i-1)-th pH value with the water pH value to obtain a second comparison result, and comparing the (i-1)-th pH value with the target pH value to obtain a third comparison result; and determining the i-th adjustment parameter based on the second comparison result and the third comparison result.

[0010] Based on this technical solution, when the water pH value is not equal to the target pH value, by combining the relationship between the (i-1)th pH value and the water pH value, as well as the relationship between the (i-1)th pH value and the target pH value, the acidity or alkalinity of the current pH value (i.e., the (i-1)th pH value) and the difference between the current pH value and the target pH value can be determined more accurately, and the parameters for the next pH adjustment (i.e., the i-th adjustment parameter) can be determined to achieve the next pH adjustment more accurately.

[0011] In some possible implementations, when the target pH value is not equal to the water pH value, determining the i adjustment parameters based on the second comparison result and the third comparison result includes: when the target pH value is less than the water pH value, if the (i-1)th pH value is greater than or equal to the water pH value, or if the (i-1)th pH value is less than the target pH value, determining that the i adjustment parameter is less than the (i-1)th adjustment parameter; or when the target pH value is less than the water pH value, if the (i-1)th pH value is less than the water pH value and the (i-1)th pH value is greater than the target pH value, determining that the i adjustment parameter is greater than the (i-1)th adjustment parameter.

[0012] In some possible implementations, when the target pH value is not equal to the water pH value, determining the i adjustment parameters based on the second comparison result and the third comparison result includes: when the target pH value is greater than the water pH value, if the (i-1)th pH value is less than the water pH value, or if the (i-1)th pH value is greater than the target pH value, determining that the i adjustment parameter is less than the (i-1)th adjustment parameter; or when the target pH value is greater than the water pH value, if the (i-1)th pH value is greater than or equal to the water pH value, and if the (i-1)th pH value is less than the target pH value, determining that the i adjustment parameter is greater than the (i-1)th adjustment parameter.

[0013] In some possible implementations, determining that the i-th adjustment parameter is less than the (i-1)-th adjustment parameter includes: subtracting a preset step size from the (i-1)-th adjustment parameter to obtain the i-th adjustment parameter; determining that the i-th adjustment parameter is greater than the (i-1)-th adjustment parameter includes: adding a preset step size to the (i-1)-th adjustment parameter to obtain the i-th adjustment parameter.

[0014] In some possible implementations, the fertilizer applicator parameters include: the angle of the electric ball valve, which is used to control the flow rate of the source fertilizer.

[0015] Secondly, an apparatus for adjusting the pH value of a fertilizer solution in a fertilizer applicator is provided, comprising: an acquisition unit for acquiring a target pH value of the fertilizer solution; an adjustment unit for adjusting the pH value of the fertilizer solution by adjusting fertilizer applicator parameters, wherein the fertilizer applicator parameters are parameters used in the fertilizer applicator to control the flow rate of the source fertilizer; a detection unit for detecting the pH value of the water in the fertilizer applicator and the (i-1)th pH value of the fertilizer solution after the (i-1)th adjustment; a processing unit for determining the i-th adjustment parameter of the fertilizer applicator parameters based on the (i-1)th pH value, the water pH value, and the target pH value, wherein i is a positive integer greater than 1; the adjustment unit is further configured to adjust the pH value of the fertilizer solution for the i-th time using the i-th adjustment parameter.

[0016] Thirdly, a fertilizer applicator is provided, comprising: a discharge port for discharging a fertilizer solution prepared by the fertilizer applicator; and a device for adjusting the pH value of the fertilizer solution in the fertilizer applicator, as provided in the second aspect, the device being used to adjust the pH value of the fertilizer solution at the discharge port. Attached Figure Description

[0017] Figure 1 This is a schematic structural block diagram of a fertilizer applicator provided in an embodiment of this application.

[0018] Figure 2 This is a schematic flowchart illustrating a method for adjusting the pH value of a fertilizer solution in a fertilizer applicator, as provided in an embodiment of this application.

[0019] Figure 3 This is a schematic flowchart illustrating another method for adjusting the pH value of fertilizer solution in a fertilizer applicator provided in this application embodiment.

[0020] Figure 4 This is a schematic flowchart illustrating another method for adjusting the pH value of fertilizer solution in a fertilizer applicator provided in this application embodiment.

[0021] Figure 5 This is a schematic flowchart illustrating another method for adjusting the pH value of fertilizer solution in a fertilizer applicator provided in this application embodiment.

[0022] Figure 6This is a schematic structural block diagram of a device for adjusting the pH value of fertilizer solution in a fertilizer applicator, provided in an embodiment of this application.

[0023] Figure 7 This is a schematic structural block diagram of a fertilizer applicator provided in an embodiment of this application. Detailed Implementation

[0024] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0025] Figure 1 A schematic structural block diagram of a fertilizer applicator applicable to embodiments of this application is shown.

[0026] like Figure 1 As shown, the fertilizer applicator 100 may include: a feeding system 110, a control system 120, a distribution system 130, a power system 140, and a moving device 150.

[0027] Specifically, the feeding system 110 typically includes a fertilizer storage container, a conveying device, and a metering device. The storage container (e.g., a fertilizer tank) stores the fertilizer, the conveying device (e.g., a pipe) transports the fertilizer from the storage container to the metering device, and the metering device is responsible for precisely controlling the amount of fertilizer applied. The conveying device may include a component for controlling the flow rate of the fertilizer solution. For example, this component could be an electric ball valve; by controlling the angle of the electric ball valve, the flow rate of the fertilizer solution in the pipe can be controlled relatively accurately.

[0028] The control system 120 is the brain of the fertilizer applicator 100, which can adjust the fertilizer application rate, application speed, and application time according to a preset program. The control system 120 may include a programmable logic controller (PLC), a touch screen or display screen, various sensors (such as pH sensors, flow sensors, etc.), and actuators (such as solenoid valves, motor drivers, etc.). The control system 120 can be connected to the feeding system 110, the distribution system 130, and the moving device 150 in the fertilizer applicator 100 to perform related control of these three systems.

[0029] The distribution system 130 is responsible for evenly distributing fertilizer to crops in the field. This is typically achieved through a series of pipes, sprinklers, or drip irrigation systems. In some implementations, the distribution system 130 may include a discharge port that receives water and fertilizer solution supplied by the supply system 110. When the flow rate of fertilizer solution supplied by the supply system 110 is high and the flow rate of water is low, the pH value of the fertilizer output from the discharge port is high; conversely, when the flow rate of fertilizer solution supplied by the supply system 110 is low and the flow rate of water is high, the pH value of the fertilizer output from the discharge port is low. Therefore, the pH value of the fertilizer output from the discharge port can be adjusted by regulating the flow rate of fertilizer solution or water supplied by the supply system 110. For example, the pH value of the fertilizer output from the discharge port can be adjusted by regulating the angle of the electric ball valve in the supply system 110.

[0030] The power system 140 provides the necessary power to the fertilizer applicator 100, and typically includes an engine (such as a gasoline engine, diesel engine, or electric motor) and a battery. The engine drives the various movements and operations of the fertilizer applicator 100, while the battery provides power to the control system 120 and other electronic components. Optionally, such as Figure 1 As shown, the power system 140 can be connected to multiple other systems in the fertilizer applicator (i.e., the feeding system 110, the control system 120, the distribution system 130, and the moving device 150) to provide power to these multiple systems.

[0031] The mobile device 150 may include, for example, wheels or tracks. This mobile device 150 enables the fertilizer applicator to travel smoothly across different terrains and perform fertilization operations.

[0032] It is understandable that the fertilizer applicator 100 may include, in addition to, Figure 1 In addition to the multiple systems shown, corresponding system modules can be added or removed according to actual needs. This application embodiment does not limit the specific structure of the fertilizer applicator 100.

[0033] Based on the above fertilizer applicator 100, such as Figure 2 As shown, this application provides a schematic flowchart of a method 200 for adjusting the pH value of a fertilizer solution in a fertilizer applicator.

[0034] See Figure 2 The method 200 for adjusting the pH value of the fertilizer solution in the fertilizer applicator may include the following steps.

[0035] S210: Obtain the target pH value of the fertilizer solution.

[0036] S220: Detects the pH value of the water in the fertilizer applicator.

[0037] S230: Adjusting the pH value of the fertilizer solution by adjusting the fertilizer applicator parameters, which are parameters used in the fertilizer applicator to control the flow rate of the source fertilizer.

[0038] S240: Based on the (i-1)th pH value of the fertilizer solution after the (i-1)th adjustment, the pH value of the water, and the target pH value, determine the i-th adjustment parameter of the fertilizer applicator, where i is a positive integer greater than 1.

[0039] S250: Adjust the pH value of the fertilizer solution for the i-th time using the i-th adjustment parameter.

[0040] Optionally, the above method 200 can be derived from... Figure 1 The control system 120 shown is executed.

[0041] In S210, the target pH value of the fertilizer solution is the pH value of the fertilizer solution that the fertilizer applicator needs to output. This target pH value is matched with the current irrigation task. That is, the fertilizer solution with this target pH value can accurately irrigate the farmland to be irrigated, which can provide sufficient fertilizer for the crops without affecting their normal growth.

[0042] The control system in the fertilizer applicator can receive the target pH value of the fertilizer solution sent from an external source, such as a target pH value input by the user. Alternatively, the control system can also detect relevant parameters of the farmland to be irrigated to calculate the target pH value.

[0043] In S220, the control system can detect the pH value of the water in the fertilizer applicator via a pH sensor. Due to the influence of geographical environment or various environmental factors, the pH value of the water in the fertilizer applicator may fluctuate. Therefore, in this embodiment, the control system first detects the pH value of the water, thereby enabling more precise pH adjustment of the fertilizer solution prepared by the fertilizer applicator.

[0044] In S230, the control system can adjust the current pH value of the fertilizer solution by adjusting the fertilizer applicator parameters. Specifically, the fertilizer applicator parameters can be relevant parameters in the feeding system 110 used to control the flow rate of the source fertilizer. After the source fertilizer is mixed with water, an output fertilizer solution can be prepared. In some examples, the feeding system 110 is equipped with an electric ball valve, and the flow rate of the source fertilizer and / or water can be controlled by controlling the angle of the electric ball valve. The fertilizer applicator parameters can include the angle parameter of the electric ball valve. Alternatively, in some alternative examples, other structures can be used to control the flow rate of the raw materials, such as gate valves, stop valves, butterfly valves, etc. In this case, the fertilizer applicator parameters can include relevant parameters of other structures such as gate valves. This application embodiment does not specifically limit this.

[0045] In S240 and S250, the control system can determine the i-th adjustment parameter of the fertilizer applicator based on the (i-1)-th pH value of the fertilizer solution after the (i-1)-th adjustment, the pH value of the water, and the target pH value, and perform the i-th adjustment of the fertilizer solution based on the i-th adjustment parameter, where i is a positive integer greater than 1.

[0046] Specifically, the control system can set a first adjustment parameter for the fertilizer applicator based on a first preset value, and adjust the fertilizer solution to obtain a first pH value using this first adjustment parameter. Then, the control system can determine a second adjustment parameter based on the first pH value, the acquired water pH value, and the target pH value, and adjust the pH value of the fertilizer solution to a second degree using this second adjustment parameter.

[0047] Similarly, the control system can determine the i-th adjustment parameter of the fertilizer applicator based on the (i-1)-th pH value, the pH value of the water, and the target pH value, and then adjust the fertilizer solution for the i-th time using this i-th adjustment parameter, where i is a positive integer greater than 1.

[0048] In this embodiment, the parameters of the fertilizer applicator for the next pH adjustment are determined by using the pH value of the fertilizer solution after the previous adjustment, the pH value of the water, and the target pH value. These parameters comprehensively consider the influence of the pH value of the water in the fertilizer applicator on the fertilizer solution and the difference between the current pH value and the target pH value. As a result, the parameters can dynamically adapt to the pH changes of the fertilizer solution, which is conducive to quickly and accurately adjusting the fertilizer solution to the target pH value, thereby quickly achieving the purpose of precision irrigation.

[0049] Figure 3 A schematic flowchart of another method 300 for adjusting the pH value of fertilizer solution in a fertilizer applicator, provided in an embodiment of this application, is shown.

[0050] See Figure 3 The method 300 for adjusting the pH value of the fertilizer solution in the fertilizer applicator may include the following steps.

[0051] S310: Obtain the target pH value of the fertilizer solution.

[0052] S320: Detects the pH value of the water in the fertilizer applicator.

[0053] S330: Adjusting the pH value of the fertilizer solution by adjusting the fertilizer applicator parameters, which are parameters used in the fertilizer applicator to control the flow rate of the source fertilizer.

[0054] S340: Determine whether the water pH value is equal to the target pH value.

[0055] S341, If ​​so, determine the i-th adjustment parameter as the minimum value that the fertilizer applicator parameter can be adjusted to.

[0056] S350: If not, compare the (i-1)th pH value with the pH value of the water to obtain a second comparison result.

[0057] S360: Compare the (i-1)th pH value with the target pH value to obtain the third comparison result.

[0058] S370: Determine the i-th adjustment parameter based on the second and third comparison results.

[0059] S380: Adjust the pH value of the fertilizer solution for the i-th time using the i-th adjustment parameter.

[0060] Optionally, S340 to S370 mentioned above can be the same as described above. Figure 2 One implementation of S240 in the illustrated embodiment.

[0061] In the technical solution of this application embodiment, the control system can compare the water pH value with the target pH value to obtain a first comparison result, and determine the i-th adjustment parameter based on the first comparison result, the (i-1)th pH value, the water pH value and the target pH value.

[0062] This technical solution first compares the pH value of the water in the fertilizer applicator with the target pH value. Based on this comparison, the subsequent adjustment direction is determined, which helps to improve the pH adjustment efficiency and achieve rapid and precise irrigation.

[0063] Specifically, in steps S340 to S370, the control system determines whether the water pH value is equal to the target pH value. If the water pH value is equal to the target pH value, the flow rate of the source fertilizer needs to be reduced while ensuring sufficient water flow so that the pH value of the fertilizer solution output by the fertilizer applicator is close to the target pH value, i.e., the water pH value. In this case, the control system determines the i-th adjustment parameter as the minimum adjustable value of the fertilizer applicator parameter. In some examples, when the fertilizer applicator parameter is the angle of the electric ball valve controlling the source fertilizer flow rate, this i-th adjustment parameter can be the minimum adjustable angle of the electric ball valve, for example, less than or equal to 5°.

[0064] If the pH value of the water is not equal to the target pH value, it means that the land to be irrigated has certain requirements for the pH value of the fertilizer solution. Therefore, it is necessary to judge the second comparison result between the i-th pH value and the water pH value, and the third comparison result between the i-th pH value and the target pH value, and determine the i-th adjustment parameter based on the second comparison result and the third comparison result.

[0065] Based on this technical solution, when the water pH value is not equal to the target pH value, by combining the relationship between the (i-1)th pH value and the water pH value, as well as the relationship between the (i-1)th pH value and the target pH value, the acidity or alkalinity of the current pH value (i.e., the (i-1)th pH value) and the difference between the current pH value and the target pH value can be determined more accurately, and the parameters for the next pH adjustment (i.e., the i-th adjustment parameter) can be determined to achieve the next pH adjustment more accurately.

[0066] Figure 4 and Figure 5 Schematic flowcharts of two other methods 400 and 500 for adjusting the pH value of fertilizer solution in a fertilizer applicator provided in embodiments of this application are shown.

[0067] See Figure 4 If the target pH value is less than the water pH value, and the (i-1)th pH value is greater than or equal to the water pH value, or the (i-1)th pH value is less than the target pH value, then the i-th adjustment parameter is determined to be less than the (i-1)th adjustment parameter.

[0068] If the target pH value is less than the water pH value, and the (i-1)th pH value is less than the water pH value, and the (i-1)th pH value is greater than or equal to the target pH value, then the i-th adjustment parameter is determined to be greater than the (i-1)th adjustment parameter.

[0069] Specifically, if the target pH value is lower than the pH value of water, it means that the fertilizer solution that the fertilizer applicator wants to output is acidic.

[0070] If the pH value of the previous test (i.e., the (i-1)th pH value) is greater than the pH value of water, it means that the fertilizer solution output in the previous test was alkaline. The adjustment parameter for the next test needs to be reduced, that is, the i-th adjustment parameter should be less than the (i-1)th adjustment parameter, and the flow rate of the source fertilizer should be reduced so that the pH value of the fertilizer solution output by the fertilizer applicator gradually decreases.

[0071] If the pH value of the previous test (i.e., the (i-1)th pH value) is less than the target pH value, it means that the fertilizer solution output in the previous test was also acidic, but too acidic. Therefore, it is necessary to reduce the adjustment parameter for the next test, i.e., the i-th adjustment parameter should be less than the (i-1)th adjustment parameter, and reduce the flow rate of the source fertilizer so that the pH value of the fertilizer solution output by the fertilizer applicator gradually approaches the target pH value.

[0072] If the pH value of the previous test (i.e., the (i-1)th pH value) is less than the pH value of water but greater than the target pH value, it means that the pH value of the fertilizer solution output in the previous test is between the pH value of water and the target pH value. The acidity of the fertilizer solution is relatively weak. Therefore, it is necessary to increase the adjustment parameter for the next test, that is, the i-th adjustment parameter is greater than the (i-1)th adjustment parameter, to increase the flow rate of the source fertilizer, so that the pH value of the fertilizer solution output by the fertilizer applicator gradually approaches the target pH value.

[0073] See Figure 5 If the target pH value is greater than the water pH value, and the (i-1)th pH value is less than the water pH value, or the (i-1)th pH value is greater than the target pH value, then the i-th adjustment parameter is determined to be less than the (i-1)th adjustment parameter.

[0074] If the target pH value is greater than the water pH value, and the (i-1)th pH value is greater than or equal to the water pH value, and the (i-1)th pH value is less than the target pH value, then the i-th adjustment parameter is determined to be greater than the (i-1)th adjustment parameter.

[0075] Specifically, if the target pH value is greater than the pH value of water, it means that the fertilizer solution that the fertilizer applicator wants to output is alkaline.

[0076] If the pH value of the previous test (i.e., the (i-1)th pH value) is less than the pH value of water, it means that the fertilizer solution output in the previous test was acidic. The adjustment parameter for the next test needs to be reduced, that is, the i-th adjustment parameter should be less than the (i-1)th adjustment parameter, and the flow rate of the source fertilizer should be reduced so that the pH value of the fertilizer solution output by the fertilizer applicator gradually increases.

[0077] If the pH value of the previous test (i.e., the (i-1)th pH value) is greater than the target pH value, it means that the fertilizer solution output in the previous test was also alkaline, but too alkaline. Therefore, it is necessary to reduce the adjustment parameter for the next test, i.e., the i-th adjustment parameter should be less than the (i-1)th adjustment parameter, and reduce the flow rate of the source fertilizer so that the pH value of the fertilizer solution output by the fertilizer applicator gradually approaches the target pH value.

[0078] If the pH value of the previous test (i.e., the (i-1)th pH value) is greater than or equal to the pH value of water and less than the target pH value, it means that the pH value of the fertilizer solution output in the previous test is between the pH value of water and the target pH value. The alkalinity of the fertilizer solution is relatively weak. Therefore, it is necessary to increase the adjustment parameter for the next test, that is, the i-th adjustment parameter is greater than the (i-1)th adjustment parameter, to increase the flow rate of the source fertilizer, so that the pH value of the fertilizer solution output by the fertilizer applicator gradually approaches the target pH value.

[0079] In summary, the technical solution of this application comprehensively considers the pH value of the previous test (i.e., the (i-1)th pH value) and the relationship between the different pH values ​​and the target pH value, and adjusts the pH of the fertilizer solution in a relatively accurate manner from multiple aspects to meet the needs of rapid and precise irrigation.

[0080] In some possible implementations, the control system can subtract a preset step size from the (i-1)th adjustment parameter to obtain the ith adjustment parameter, thereby making the ith adjustment parameter smaller than the (i-1)th adjustment parameter. Similarly, the control system can add a preset step size to the (i-1)th adjustment parameter to obtain the ith adjustment parameter, thereby making the ith adjustment parameter larger than the (i-1)th adjustment parameter.

[0081] Optionally, when it is necessary to decrease the (i-1)th adjustment parameter to obtain the ith adjustment parameter, a method of decreasing the preset step size can be used in both cases. Alternatively, when the current pH value is different from the target pH value, the first method is used to process the (i-1)th adjustment parameter; when the current pH value is the same as the target pH value, the second method is used. Both the first and second methods can be methods of decreasing the preset step size, but the preset step size in the first method is different from that in the second method. For example, the preset step size in the first method can be larger than that in the second method. Alternatively, at least one of the first and second methods can be a method of determining the step size based on the difference between the current pH value and the target pH value; that is, the larger the difference between the current pH value and the target pH value, the larger the step size.

[0082] Similarly, when it's necessary to increase the (i-1)th adjustment parameter to obtain the ith adjustment parameter, a preset step size can be used in both cases. Alternatively, if the current pH value differs from the target pH value, the third method can be used to process the (i-1)th adjustment parameter; if the current pH value and the target pH value are the same, the fourth method can be used. Both the third and fourth methods can involve increasing the preset step size, but the preset step size in the third method differs from that in the fourth method. For example, the preset step size in the third method can be larger than that in the fourth method. Alternatively, at least one of the third and fourth methods can determine the step size based on the difference between the current pH value and the target pH value; that is, the larger the difference between the current pH value and the target pH value, the larger the step size.

[0083] As an example, the adjustment method in the above embodiment can be represented by the following formula.

[0084] like

[0085] like

[0086]

[0087] like

[0088]

[0089] Where T is the target pH value. pH value of water This refers to the minimum adjustable value of the fertilizer applicator parameters, for example, the... This is the smallest angle that the electric ball valve can adjust. This represents the (i-1)th pH value after the (i-1)th adjustment. This is the i-th adjustment parameter of the fertilizer applicator. This is the (i-1)th adjustment parameter of the fertilizer applicator. This is the preset step size.

[0090] In the embodiments described above, the parameters of the fertilizer applicator may include parameters related to controlling the flow rate of the source fertilizer. For example, the fertilizer applicator is equipped with an electric ball valve. The angle of this electric ball valve is used to control the flow rate of the source fertilizer. When the angle of the electric ball valve increases, the flow rate of the source fertilizer increases, resulting in a higher concentration of the fertilizer solution output by the fertilizer applicator. If the fertilizer solution is alkaline, the pH value increases; if the fertilizer solution is acidic, the pH value decreases. Conversely, when the angle of the electric ball valve decreases, the flow rate of the source fertilizer decreases, resulting in a lower concentration of the fertilizer solution output by the fertilizer applicator. If the fertilizer solution is alkaline, the pH value decreases; if the fertilizer solution is acidic, the pH value increases.

[0091] It is understood that, in addition to using an electric ball valve to control the flow rate of the source fertilizer, other devices in related technologies, such as gate valves, can also be used to control the flow rate of the source fertilizer or the flow rate of water. This application does not specifically limit this.

[0092] The above text combined Figures 2 to 5 This application provides an embodiment of a method for adjusting the pH value of the fertilizer solution in a fertilizer applicator. The following is a detailed explanation of this method. Figure 6 This application describes an embodiment of a device for adjusting the pH value of the fertilizer solution in a fertilizer applicator. It should be noted that the device embodiment can correspond to the method embodiment described above, and the specific details of the device embodiment can be found in the relevant descriptions of the above embodiments, which will not be elaborated upon further below.

[0093] Figure 6 A schematic structural block diagram of a device 600 for adjusting the pH value of fertilizer solution in a fertilizer applicator, provided in an embodiment of this application, is shown.

[0094] like Figure 6 As shown, the device 600 for adjusting the pH value of the fertilizer solution in the fertilizer applicator may include: an acquisition unit 610, an adjustment unit 620, a detection unit 630, and a processing unit 640.

[0095] Specifically, the acquisition unit 610 is used to acquire the target pH value of the fertilizer solution.

[0096] The regulating unit 620 is used to adjust the pH value of the fertilizer solution by adjusting the fertilizer applicator parameters, which are the parameters used in the fertilizer applicator to control the flow rate of the source fertilizer.

[0097] The detection unit 630 is used to detect the pH value of the water in the fertilizer applicator and the (i-1)th pH value of the fertilizer solution after the (i-1)th adjustment.

[0098] The processing unit 640 is used to determine the i-th adjustment parameter of the fertilizer applicator based on the (i-1)-th pH value, the water pH value and the target pH value, where i is a positive integer greater than 1.

[0099] The adjustment unit 620 is also used to adjust the pH value of the fertilizer solution for the i-th time through the i-th adjustment parameter.

[0100] Optionally, in this embodiment of the application, the device 600 can be as described above. Figure 1 The control system 120 shown is shown.

[0101] The acquisition unit 610 can be, for example, an interface of the control system 120, which can receive the target pH value input by the user through the input device of the fertilizer applicator. For example, the user can input the target pH value to the fertilizer applicator through a touch screen, touchpad or voice input.

[0102] The adjustment unit 620 can be, for example, a control device that can control and adjust the parameters of the fertilizer applicator. For instance, when the fertilizer applicator parameter is the angle of the electric ball valve, the adjustment unit 620 can control the electrical parameters of the electric ball valve to adjust its angle.

[0103] The detection unit 630 can be, for example, a pH sensor, which can detect the real-time pH value of the fertilizer solution and feed it back to the processing unit 640.

[0104] The processing unit 640 may be a processing chip, such as a micro control unit (MCU) chip, which can perform data calculation and processing. The specific type of the processing chip is not limited in the embodiments of this application.

[0105] In some possible implementations, the processing unit 640 is used to: compare the water pH value with the target pH value to obtain a first comparison result; and determine the i-th adjustment parameter based on the first comparison result, the (i-1)-th pH value, the water pH value, and the target pH value.

[0106] In some possible implementations, the processing unit 640 is configured to: determine i adjustment parameters as the minimum value of the parameter range that the fertilizer applicator can adjust when the target pH value is equal to the water pH value; when the target pH value is not equal to the water pH value, compare the (i-1)th pH value with the water pH value to obtain a second comparison result, and compare the (i-1)th pH value with the target pH value to obtain a third comparison result; and determine the i-th adjustment parameter based on the second comparison result and the third comparison result.

[0107] In some possible implementations, the processing unit 640 is configured to: if the target pH value is less than the water pH value, and the (i-1)th pH value is greater than or equal to the water pH value, or the (i-1)th pH value is less than the target pH value, determine that the i-th adjustment parameter is less than the (i-1)th adjustment parameter; or if the target pH value is less than the water pH value, and the (i-1)th pH value is less than the water pH value, and the (i-1)th pH value is greater than the target pH value, determine that the i-th adjustment parameter is greater than the (i-1)th adjustment parameter.

[0108] In some possible implementations, the processing unit 640 is configured to: if the target pH value is greater than the water pH value, and the (i-1)th pH value is less than the water pH value, or the (i-1)th pH value is greater than the target pH value, determine that the i-th adjustment parameter is less than the (i-1)th adjustment parameter; or if the target pH value is greater than the water pH value, and the (i-1)th pH value is greater than or equal to the water pH value, and the (i-1)th pH value is less than the target pH value, determine that the i-th adjustment parameter is greater than the (i-1)th adjustment parameter.

[0109] In some possible implementations, the processing unit 640 is used to: subtract a preset step size from the (i-1)th adjustment parameter to obtain the i-th adjustment parameter; or, add a preset step size to the (i-1)th adjustment parameter to obtain the i-th adjustment parameter.

[0110] In some possible implementations, the fertilizer applicator parameters include: the angle of the electric ball valve, which is used to control the flow rate of the source fertilizer.

[0111] Figure 7 A schematic structural block diagram of a fertilizer applicator 700 provided in an embodiment of this application is shown.

[0112] like Figure 7 As shown, the fertilizer applicator 700 may include: a discharge port 710 and a control system 720.

[0113] Specifically, the discharge port 710 is used to discharge the fertilizer solution prepared by the fertilizer applicator 700. The control system 720 can be described above. Figure 6 The illustrated embodiment includes a device 600 for adjusting the pH value of the fertilizer solution. This device 600 can be used to adjust the pH value of the fertilizer solution at the outlet 710.

[0114] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0115] It should be understood that the specific examples in this document are only intended to help those skilled in the art better understand the embodiments of this application, and are not intended to limit the scope of the embodiments of this application.

[0116] It should also be understood that, in the various embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0117] It should also be understood that the various implementation methods described in this specification can be implemented individually or in combination, and the embodiments of this application are not limited in this respect.

[0118] Unless otherwise stated, all technical and scientific terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items. The singular forms "a," "the," and "the" as used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0119] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0120] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0121] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0122] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0123] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method of adjusting the pH of a fertilizer solution in a fertilizer applicator, comprising: The method comprises the following steps: obtaining a target PH value of a fertilizer solution; detecting a water PH value of water in the fertilizer applicator; adjusting the PH value of the fertilizer solution by adjusting a fertilizer applicator parameter, the fertilizer applicator parameter being a parameter in the fertilizer applicator for controlling a source fertilizer flow; comparing the water PH value with the target PH value; in the case that the target PH value is equal to the water PH value, determining an i-th adjustment parameter of the fertilizer applicator parameter as a minimum value of a parameter range that can be adjusted by the fertilizer applicator, wherein i is a positive integer greater than 1; in the case that the target PH value is not equal to the water PH value, comparing an i-1-th PH value of the fertilizer solution after i-1-th adjustment with the water PH value to obtain a second comparison result, and comparing the i-1-th PH value with the target PH value to obtain a third comparison result; determining the i-th adjustment parameter according to the second comparison result and the third comparison result; and adjusting the PH value of the fertilizer solution by the i-th adjustment parameter.

2. The method of claim 1, wherein, In the case that the target PH value is not equal to the water PH value, determining the i-th adjustment parameter according to the second comparison result and the third comparison result comprises: in the case that the target PH value is less than the water PH value, if the i-1-th PH value is greater than or equal to the water PH value, or the i-1-th PH value is less than the target PH value, determining that the i-th adjustment parameter is less than the i-1-th adjustment parameter; or in the case that the target PH value is less than the water PH value, if the i-1-th PH value is less than the water PH value, and the i-1-th PH value is greater than the target PH value, determining that the i-th adjustment parameter is greater than the i-1-th adjustment parameter.

3. The method of claim 1, wherein, In the case that the target PH value is not equal to the water PH value, determining the i-th adjustment parameter according to the second comparison result and the third comparison result comprises: in the case that the target PH value is greater than the water PH value, if the i-1-th PH value is less than the water PH value, or the i-1-th PH value is greater than the target PH value, determining that the i-th adjustment parameter is less than the i-1-th adjustment parameter; or in the case that the target PH value is greater than the water PH value, if the i-1-th PH value is greater than or equal to the water PH value, and the i-1-th PH value is less than the target PH value, determining that the i-th adjustment parameter is greater than the i-1-th adjustment parameter.

4. The method according to claim 2 or 3, characterized in that, Determining that the i-th adjustment parameter is less than the i-1-th adjustment parameter comprises: subtracting a preset step size from the i-1-th adjustment parameter to obtain the i-th adjustment parameter. Determining that the i-th adjustment parameter is greater than the i-1-th adjustment parameter comprises: adding a preset step size to the i-1-th adjustment parameter to obtain the i-th adjustment parameter.

5. The method according to any one of claims 1 to 3, characterized in that, The fertilizer applicator parameter comprises an angle of an electric ball valve, and the angle of the electric ball valve is used for controlling the source fertilizer flow.

6. An apparatus for adjusting the pH of a fertilizer solution in a fertilizer applicator, comprising: The method comprises the following steps: obtaining a target PH value of a fertilizer solution by a obtaining unit; an adjusting unit configured to adjust a pH value of the fertilizer solution by adjusting a fertilizer machine parameter, the fertilizer machine parameter being a parameter in the fertilizer machine for controlling a source fertilizer flow rate; a detecting unit configured to detect a water pH value of water in the fertilizer machine and an i-1th pH value of the fertilizer solution after i-1th adjustment; a processing unit configured to: compare the water pH value with a target pH value; in a case where the target pH value is equal to the water pH value, determine an i-th adjustment parameter of the fertilizer machine parameter as a minimum value of a parameter range that the fertilizer machine can adjust, wherein i is a positive integer greater than 1; in a case where the target pH value is not equal to the water pH value, obtain a second comparison result by comparing the i-1th pH value with the water pH value, and obtain a third comparison result by comparing the i-1th pH value with the target pH value; determine the i-th adjustment parameter according to the second comparison result and the third comparison result; the adjusting unit is further configured to perform i-th adjustment on the pH value of the fertilizer solution by using the i-th adjustment parameter.

7. The apparatus of claim 6, wherein, the processing unit is configured to: in a case where the target pH value is less than the water pH value, if the i-1th pH value is greater than or equal to the water pH value, or the i-1th pH value is less than the target pH value, determine that the i-th adjustment parameter is less than an i-1th adjustment parameter; or in a case where the target pH value is less than the water pH value, if the i-1th pH value is less than the water pH value, and the i-1th pH value is greater than the target pH value, determine that the i-th adjustment parameter is greater than the i-1th adjustment parameter.

8. The apparatus of claim 6, wherein, the processing unit is configured to: in a case where the target pH value is greater than the water pH value, if the i-1th pH value is less than the water pH value, or the i-1th pH value is greater than the target pH value, determine that the i-th adjustment parameter is less than the i-1th adjustment parameter; or in a case where the target pH value is greater than the water pH value, if the i-1th pH value is greater than or equal to the water pH value, and the i-1th pH value is less than the target pH value, determine that the i-th adjustment parameter is greater than the i-1th adjustment parameter.

9. The apparatus of claim 7 or 8, wherein, the processing unit is configured to: obtain the i-th adjustment parameter by subtracting a preset step size from the i-1th adjustment parameter; or obtain the i-th adjustment parameter by adding the preset step size to the i-1th adjustment parameter.

10. The apparatus of any one of claims 6 to 8, wherein, the fertilizer machine parameter includes an angle of an electric ball valve, the angle of the electric ball valve being used to control the source fertilizer flow rate.

11. A fertilizer applicator characterized by, comprises: a discharge outlet configured to discharge the fertilizer solution prepared by the fertilizer machine; and the apparatus of any one of claims 6 to 10, wherein the apparatus is configured to adjust the pH value of the fertilizer solution at the discharge outlet. ​

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