Spraying method, device and equipment based on ultramicro bubbles, medium and product

Abstract

The invention provides a spraying method, device and equipment based on ultramicro bubbles, a medium and a product, relates to the technical field of agricultural spraying, and aims to overcome the defect of serious side effects caused by a liquid medicine spraying mode in the prior art and achieve the effects that the pesticide effect of liquid medicine is not reduced and the environment is not polluted when the liquid medicine is sprayed. Comprising the steps that the generation speed of ultramicro bubbles is controlled based on preset concentration, and the particle size of the ultramicro bubbles is smaller than preset particle size; injecting the ultramicro bubbles into a liquid medicine to be sprayed to obtain a gas-liquid mixed liquid medicine; and spraying the gas-liquid mixed liquid medicine on leaf surfaces of plants.

Description

Technical Field

[0001] This invention relates to the field of agricultural spraying technology, and in particular to a spraying method, apparatus, equipment, medium and product based on microbubbles. Background Technology

[0002] Currently, when spraying pesticides or liquid fertilizers on crops, in order to improve the utilization rate and spraying accuracy of pesticides or liquid fertilizers, chemical adjuvants can be added to adjust the adhesion of the pesticide solution to the plant leaves, thereby enhancing the adhesion of the pesticide solution to the plant leaves (increasing the retention time of the pesticide solution on the plant leaves) or reducing the adhesion of the pesticide solution to the plant leaves (shortening the retention time of the pesticide solution on the plant leaves).

[0003] However, adding chemical adjuvants can affect the activity of pesticides or liquid fertilizers, leading to reduced efficacy. Furthermore, these chemical adjuvants can remain on plant leaves and diffuse into the environment, causing pollution. Therefore, current pesticide spraying methods can produce relatively serious side effects. Summary of the Invention

[0004] This invention provides a spraying method, apparatus, equipment, medium, and product based on microbubbles, which solves the defects of existing liquid spraying methods that produce serious side effects, and achieves the effect of not reducing the efficacy of the liquid and not polluting the environment when spraying liquid.

[0005] This invention provides a spraying method based on microbubbles, comprising the following steps.

[0006] The generation rate of microbubbles is controlled based on a preset concentration, and the particle size of the microbubbles is smaller than the preset particle size. Injecting microbubbles into the liquid to be sprayed yields a gas-liquid mixture. Spray the gas-liquid mixture of medicine onto the leaves of the plants.

[0007] According to the present invention, a microbubble-based spraying method is provided, wherein a preset concentration is used to adjust the retention state of the gas-liquid mixture on the leaf surface of the plant, and the retention state includes at least one of the following: droplet spread range, droplet retention time, and droplet rolling trend; the method further includes: The preset concentration is determined based on the efficacy of the pesticide solution to be sprayed on the plant.

[0008] According to the present invention, a microbubble-based spraying method is provided, wherein microbubbles are generated by at least one of a plurality of microbubble generators; The generation rate of microbubbles is controlled based on a preset concentration, including: Based on the preset concentration, determine the target number of microbubble generators that generate microbubbles; Based on a target number of microbubble generators, microbubbles are generated.

[0009] According to the present invention, a spraying method based on microbubbles is provided, the method further includes: Adjust the flow rate of the pesticide solution to be sprayed to regulate the concentration of microbubbles in the gas-liquid mixture.

[0010] According to the present invention, a spraying method based on microbubbles is provided, the method further includes: Based on the spraying amplitude parameters, the amount of pesticide applied, and the equipment moving speed, the flow rate of the pesticide to be sprayed is determined. The equipment moving speed and the flow rate of the pesticide to be sprayed are directly proportional.

[0011] According to the present invention, a spraying method based on microbubbles is provided, the method further includes: Based on the spraying amplitude parameters, the amount of pesticide applied, and the flow rate of the pesticide to be sprayed, the equipment moving speed is determined, and the equipment moving speed is directly proportional to the flow rate of the pesticide to be sprayed.

[0012] The present invention also provides a spraying device based on microbubbles, comprising the following modules: a microbubble generation module, a gas-liquid mixing module, and a spraying module; The microbubble generation module is used to control the generation rate of microbubbles based on a preset concentration, and the microbubble particle size is smaller than the preset particle size. The gas-liquid mixing module is used to inject ultra-microbubbles into the liquid to be sprayed to obtain a gas-liquid mixed liquid. The spraying module is used to spray the gas-liquid mixture of pesticide onto the leaves of plants.

[0013] According to the present invention, a microbubble-based spraying device is provided, wherein a preset concentration is used to adjust the retention state of the gas-liquid mixed pesticide on the leaf surface of the plant, and the retention state includes at least one of the following: droplet extension range, droplet retention time, and droplet rolling trend; the microbubble-based spraying device further includes a processing module, which is used to determine the preset concentration based on the efficacy of the pesticide to be sprayed on the plant.

[0014] According to the present invention, a microbubble-based spraying device is provided, wherein microbubbles are generated by at least one of a plurality of microbubble generators; the microbubble generation module is specifically used for: Based on the preset concentration, determine the target number of microbubble generators that generate microbubbles; Based on a target number of microbubble generators, microbubbles are generated.

[0015] According to the present invention, a microbubble-based spraying device and a processing module are provided, which are also used to adjust the flow rate of the liquid to be sprayed in order to adjust the concentration of microbubbles in the gas-liquid mixed liquid.

[0016] According to the microbubble-based spraying device provided by the present invention, the processing module is further used to determine the flow rate of the liquid to be sprayed based on the spraying amplitude parameters, the liquid spraying volume and the equipment moving speed, wherein the equipment moving speed and the flow rate of the liquid to be sprayed are directly proportional.

[0017] According to the microbubble-based spraying device provided by the present invention, the processing module is further used to determine the equipment moving speed based on the spraying amplitude parameters, the amount of pesticide sprayed, and the flow rate of the pesticide to be sprayed, wherein the equipment moving speed and the flow rate of the pesticide to be sprayed are directly proportional.

[0018] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the spraying method based on microbubbles as described above.

[0019] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the microbubble-based spraying method as described above.

[0020] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the microbubble-based spraying method as described above.

[0021] The present invention provides a microbubble-based spraying method, apparatus, equipment, medium, and product. By generating microbubbles with a particle size smaller than a preset size and injecting them into the pesticide solution to be sprayed, a gas-liquid mixture can be obtained. Thus, by mixing to obtain a gas-liquid mixture with a preset concentration of microbubbles, the retention state of the gas-liquid mixture on the plant leaves can be adjusted. Therefore, when spraying the gas-liquid mixture onto the plant leaves, the amount of pesticide droplets remaining on the leaf surface or rolling down to the plant roots can be adjusted according to the desired efficacy. Based on this, there is no need to add chemical adjuvants to adjust the adhesion of the pesticide solution to the plant leaves, and no side effects affecting the efficacy of the pesticide solution or polluting the environment are produced. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is one of the flowcharts of the spraying method based on microbubbles provided by the present invention.

[0024] Figure 2 This is the second schematic diagram of the spraying method based on microbubbles provided by the present invention.

[0025] Figure 3 This is the third schematic diagram of the spraying method based on microbubbles provided by the present invention.

[0026] Figure 4 This is the fourth schematic diagram of the spraying method based on microbubbles provided by the present invention.

[0027] Figure 5 This is the fifth flowchart illustrating the spraying method based on microbubbles provided by this invention.

[0028] Figure 6 This is the sixth schematic diagram of the spraying method based on microbubbles provided by the present invention.

[0029] Figure 7 This is a schematic diagram of the structure of the spraying system based on microbubbles provided by the present invention.

[0030] Figure 8 This is a schematic diagram of the structure of the spraying device based on microbubbles provided by the present invention.

[0031] Figure 9 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] Currently, when spraying pesticides or liquid fertilizers on crops, synergists, formulated from various chemical raw materials, are mixed with pesticides for low-volume spraying. These synergists reduce drift and improve adhesion by altering the surface tension of the pesticide solution. While this method can increase the deposition rate of the pesticide solution, it relies on chemical adjuvants, which may affect pesticide stability. Long-term use poses a risk of residue and fails to meet the requirements of green agriculture.

[0034] The following is combined Figures 1-9 This invention describes the spraying method, apparatus, equipment, medium, and product based on microbubbles provided by the present invention.

[0035] Figure 1 This is one of the flowcharts illustrating the microbubble-based spraying method provided by the present invention, such as... Figure 1 As shown, the method includes the following: Step 101: Control the generation rate of microbubbles based on preset concentration.

[0036] Among them, the particle size of the microbubbles is smaller than the preset particle size.

[0037] Step 102: Inject ultra-microbubbles into the liquid to be sprayed to obtain a gas-liquid mixture.

[0038] Step 103: Spray the gas-liquid mixture onto the leaves of the plant.

[0039] In the embodiments of this application, the liquid to be sprayed can be pesticide or liquid fertilizer. The water-based solution of pesticide or liquid fertilizer can be transported from the liquid tank to the spraying device (e.g., atomizing nozzle) through the liquid pipeline to spray the liquid onto the leaves of the plant.

[0040] In one possible implementation, the drug solution pipeline can be connected to an ultra-microbubble generating device. The controller can control the generation rate of ultra-microbubbles generated by the ultra-microbubble generating device according to a preset concentration, so that when the generated ultra-microbubbles are mixed with the drug solution in the drug solution pipeline, a liquid-mixed drug solution with a preset concentration can be obtained (i.e., the concentration of ultra-microbubbles in the drug solution is the preset concentration).

[0041] In this way, by spraying the gas-liquid mixture onto the leaves of plants, the liquid containing microbubbles can be atomized into droplets and sprayed onto the leaves through an atomizing nozzle. The microbubbles can improve the spreading and adhesion behavior of the droplets on the leaves by reducing surface tension and regulating the three-phase linear dynamics.

[0042] Based on the embodiments of this application, ultrafine bubbles are introduced as a gaseous dispersion phase into an aqueous solution of pesticide or liquid fertilizer to form a stable gas-liquid two-phase fluid. During spraying, the pesticide solution containing ultrafine bubbles is atomized into droplets by an atomizing device. After the droplets are deposited on the leaf surface of the plant, the ultrafine bubbles, through their physical presence at the gas-liquid interface, change the surface tension of the solution and affect the three-phase linear dynamics of the droplet-leaf contact area. This process includes changes in the contact angle during the initial droplet spreading stage and the differential regulation of the advance and retreat angles in the subsequent dynamic stage, thereby determining the droplet's extension range, residence state, or rolling detachment tendency on the leaf surface. The entire mechanism relies on the interfacial activity of ultrafine bubbles without introducing additional chemical adjuvants or altering the molecular structure of the active ingredient.

[0043] In this embodiment, by generating microbubbles with a particle size smaller than a preset size and injecting them into the pesticide solution to be sprayed, a gas-liquid mixture can be obtained. Thus, by mixing to obtain a gas-liquid mixture with a preset concentration of microbubbles, the retention state of the gas-liquid mixture on the plant leaves can be adjusted. Therefore, when spraying the gas-liquid mixture onto the plant leaves, the amount of pesticide droplets remaining on the leaf surface or rolling down to the plant roots can be adjusted according to the desired efficacy. Based on this, there is no need to add chemical adjuvants to adjust the adhesion of the pesticide solution to the plant leaves, and no side effects affecting the efficacy of the pesticide solution or polluting the environment are produced.

[0044] In one possible implementation, a preset concentration is used to adjust the retention state of the gas-liquid mixture on the plant leaf surface. The retention state includes at least one of the following: droplet extension range, droplet retention time, and droplet rolling trend.

[0045] Figure 2 This is the second schematic diagram of the spraying method based on microbubbles provided by the present invention, as shown below. Figure 2 As shown, the method includes the following: Step 201: Determine the preset concentration based on the efficacy of the pesticide solution to be sprayed on the plant.

[0046] Step 202: Control the generation rate of microbubbles based on preset concentration.

[0047] Step 203: Inject ultra-microbubbles into the liquid to be sprayed to obtain a gas-liquid mixture.

[0048] Step 204: Spray the gas-liquid mixture onto the leaves of the plant.

[0049] In this embodiment of the application, the concentration of microbubbles to be added to the pesticide solution can be determined based on the efficacy of the pesticide solution on the plant, so that the desired effect can be achieved when the obtained gas-liquid mixture is sprayed on the leaves of the plant.

[0050] It should be noted that the retention state of droplets on plant leaves varies depending on the concentration of microbubbles in the gas-liquid mixture. For example, when the concentration of microbubbles in the gas-liquid mixture is concentration 'a', the droplets can spread out on the plant leaf surface, increasing the contact area between the droplets and the leaf surface, and the droplets will not roll off but remain on the leaf surface for a long time. However, when the concentration of microbubbles in the gas-liquid mixture is concentration 'b', the droplets can roll off the plant leaf surface quickly, thus rolling to the plant roots, and the droplets will not remain on the leaf surface for a long time.

[0051] Therefore, by adjusting the concentration of microbubbles in the gas-liquid mixture, the retention state of the gas-liquid mixture on the plant leaves can be adjusted, thereby achieving the desired efficacy after spraying.

[0052] For example, if the pesticide to be sprayed is a plant nutrient solution, which needs to act on the plant leaves and be absorbed by them, the concentration of ultrabubbles in the gas-liquid mixture can be adjusted to concentration 'a', allowing the droplets to remain on the plant leaves for a longer period. However, if the pesticide to be sprayed is a herbicide, which needs to act on weeds on the ground beneath the plant, the concentration of ultrabubbles in the gas-liquid mixture can be adjusted to concentration 'b', allowing the droplets to roll off the leaves and onto the weeds on the ground. This prevents the droplets from remaining on the leaves for an extended period and allows them to act on the weeds, thus avoiding any negative impact from the herbicide on the plant.

[0053] In one possible implementation, when determining the concentration of microbubbles to be added to the pesticide solution based on the efficacy of the pesticide solution on the plant, the thickness of the waxy layer on the plant's leaves or the hydrophobicity of the leaves can be further considered to accurately determine the concentration of microbubbles to be added to the pesticide solution.

[0054] Furthermore, the stability of microbubbles during spraying and the state of droplets when they come into contact with the leaf surface can be considered to adjust the concentration of microbubbles added to the pesticide solution.

[0055] Thus, in this embodiment, based on the efficacy of the pesticide solution to be sprayed on the plant, the concentration of microbubbles to be added to the pesticide solution is accurately determined, thereby adjusting the retention state of the resulting gas-liquid mixture on the plant leaf surface. This allows for the determination of the droplet spread range, droplet retention time, and droplet rolling trend based on the pesticide solution's efficacy on the plant. By adjusting the concentration of microbubbles added to the pesticide solution, the pesticide solution can be accurately applied to the corresponding site, producing the appropriate pesticide effect.

[0056] In one possible implementation, microbubbles are generated by at least one of a plurality of microbubble generators.

[0057] Figure 3 This is the third schematic diagram of the process for the microbubble-based spraying method provided by the present invention, as shown below. Figure 3 As shown, the method includes the following: Step 301: Based on the preset concentration, determine the target number of microbubble generators for generating microbubbles.

[0058] Step 302: Generate microbubbles based on the target number of microbubble generators among multiple microbubble generators.

[0059] Step 303: Inject ultra-microbubbles into the liquid to be sprayed to obtain a gas-liquid mixture.

[0060] Step 304: Spray the gas-liquid mixture onto the leaves of the plant.

[0061] In one possible implementation, the microbubble generating device connected to the drug solution pipeline may include multiple microbubble generators, and the speed of microbubble generation can be adjusted by controlling the number of microbubble generators turned on.

[0062] It should be noted that multiple microbubble generators can be arranged in parallel in the drug liquid pipeline. Each microbubble generator can operate under a fixed air intake condition to generate microbubbles with stable particle size and inject them into the drug liquid flow in the drug liquid pipeline to form a gas-liquid mixed drug liquid.

[0063] Thus, after determining the preset concentration, it is possible to determine how many microbubble generators are needed to work based on the preset concentration and the flow rate of the liquid in the liquid pipeline, so that the generated microbubbles can mix with the liquid in the liquid pipeline to obtain a gas-liquid mixture of the preset concentration.

[0064] The controller controls several microbubble generators to operate, thereby changing the number of microbubbles injected into the drug flow in the drug pipeline, thus achieving gradient adjustment of concentration.

[0065] In this embodiment, based on a predetermined preset concentration, at least one of multiple microbubble generators can be controlled to generate microbubbles, thereby controlling the rate of microbubble generation. This ensures that when the generated microbubbles mix with the liquid in the liquid pipeline, a gas-liquid mixture of the predetermined concentration is accurately obtained. In this way, the concentration of the generated gas-liquid mixture can be accurately controlled, allowing the liquid to produce the corresponding medicinal effect after spraying.

[0066] In one possible implementation, Figure 4 This is the fourth schematic diagram of the spraying method based on microbubbles provided by the present invention, as shown below. Figure 4 As shown, the method includes the following: Step 401: Based on the preset concentration, determine the target number of microbubble generators for generating microbubbles.

[0067] Step 402: Generate microbubbles based on the target number of microbubble generators among multiple microbubble generators.

[0068] Step 403: Adjust the flow rate of the pesticide solution to be sprayed in order to adjust the concentration of ultra-microbubbles in the gas-liquid mixture.

[0069] Step 404: Inject ultra-microbubbles into the liquid to be sprayed to obtain a gas-liquid mixture.

[0070] Step 405: Spray the gas-liquid mixture onto the leaves of the plant.

[0071] In this embodiment of the application, in addition to controlling the speed of generating microbubbles by controlling the target number of microbubble generators, the concentration of microbubbles in the generated gas-liquid mixture can be further adjusted by adjusting the flow rate of the liquid to be sprayed in the liquid pipeline.

[0072] In this way, by using different numbers of microbubble generators, the concentration of microbubbles in the gas-liquid mixture can be coarsely adjusted, and the flow rate of the liquid to be sprayed in the liquid pipeline can be adjusted simultaneously to finely adjust the concentration of microbubbles in the gas-liquid mixture, thereby achieving high-resolution continuous output of concentration.

[0073] In this embodiment, by jointly controlling the number of activated microbubble generators and the flow rate of the pesticide solution to be sprayed in the pipeline, the number of microbubbles per unit volume of pesticide solution can be continuously varied within a stepped range. This allows for high-resolution continuous adjustment of the microbubble concentration output without altering the physical properties of the microbubbles. Consequently, it is possible to control the generation of gas-liquid mixtures of arbitrary concentrations, ensuring optimal efficacy after spraying.

[0074] In one possible implementation, Figure 5 This is the fifth flowchart illustrating the microbubble-based spraying method provided by the present invention, as shown below. Figure 5 As shown, the method includes the following: Step 501: Based on the preset concentration, determine the target number of microbubble generators for generating microbubbles.

[0075] Step 502: Generate microbubbles based on the target number of microbubble generators among multiple microbubble generators.

[0076] Step 503: Determine the flow rate of the pesticide solution to be sprayed based on the spraying amplitude parameters, the amount of pesticide applied, and the equipment moving speed.

[0077] The speed at which the equipment moves is directly proportional to the flow rate of the pesticide solution to be sprayed.

[0078] Step 504: Inject ultra-microbubbles into the liquid to be sprayed to obtain a gas-liquid mixture.

[0079] Step 505: Spray the gas-liquid mixture onto the leaves of the plant.

[0080] In one possible implementation, the equipment could be an agricultural drone or a pesticide spraying vehicle. Since the equipment's movement speed can be flexibly adjusted, to avoid excessive or insufficient pesticide application per acre (i.e., pesticide spraying volume) due to changes in equipment speed, which could affect the pesticide's efficacy, the flow rate of the pesticide in the spraying pipeline can be adjusted based on the equipment's movement speed. This means that when the equipment's movement speed increases, the flow rate increases; and when the equipment's movement speed decreases, the flow rate decreases. This ensures that the amount of pesticide sprayed per acre remains constant while the equipment's spraying width parameter remains unchanged.

[0081] It should be noted that the spraying amplitude parameter, equipment moving speed, and flow rate of the pesticide solution to be sprayed can all be flexibly adjusted. After setting the pesticide spraying volume, the remaining parameters can be adjusted accordingly based on the adjustment of one or two of the spraying amplitude parameter, equipment moving speed, and flow rate of the pesticide solution to be sprayed, thereby ensuring that the set pesticide spraying volume is achieved.

[0082] Based on this, by setting the spraying amplitude parameters, pesticide application rate, and equipment movement speed, the flow rate of the pesticide solution to be sprayed in the pipeline can be accurately determined. This allows for setting the pesticide flow rate in the pipeline, ensuring a constant deposition of active ingredients per unit area and guaranteeing that the amount of pesticide solution sprayed per acre achieves the required efficacy.

[0083] In one possible implementation, Figure 6 This is the sixth schematic diagram of the spraying method based on microbubbles provided by the present invention, as shown below. Figure 6 As shown, the method includes the following: Step 601: Based on the preset concentration, determine the target number of microbubble generators for generating microbubbles.

[0084] Step 602: Generate microbubbles based on the target number of microbubble generators among multiple microbubble generators.

[0085] Step 603: Determine the equipment moving speed based on the spraying amplitude parameters, the amount of pesticide applied, and the flow rate of the pesticide to be sprayed.

[0086] The speed at which the equipment moves is directly proportional to the flow rate of the pesticide solution to be sprayed.

[0087] Step 604: Inject ultra-microbubbles into the liquid to be sprayed to obtain a gas-liquid mixture.

[0088] Step 605: Based on the determined equipment movement speed, move the equipment and spray the gas-liquid mixture onto the leaves of the plant.

[0089] In one possible implementation, since the flow rate of the pesticide solution in the pipeline can be flexibly adjusted, to avoid excessive or insufficient pesticide application per acre (i.e., pesticide spraying amount) due to changes in the flow rate, thus affecting the efficacy of the pesticide, the equipment moving speed can be adjusted based on the flow rate of the pesticide solution in the pipeline. This means increasing the equipment moving speed when the flow rate increases and decreasing it when the flow rate decreases. This ensures a fixed amount of pesticide applied per acre while maintaining a constant spraying width parameter.

[0090] Based on this, by setting the spraying amplitude parameters, pesticide application rate, and pesticide flow rate in the pipeline, the equipment's moving speed can be accurately determined. This allows for setting the equipment's moving speed, ensuring a constant deposition of active ingredients per unit area and guaranteeing that the amount of pesticide applied per acre achieves the desired efficacy.

[0091] Thus, in this embodiment, during the adjustment of microbubble concentration, the travel speed of the equipment is adjusted synchronously as the pesticide flow rate changes to maintain a constant amount of active ingredient deposition per unit area. The system calculates the required travel speed in real time based on the current pesticide flow rate, preset application rate per acre, and spray width parameters, and sends this instruction to the equipment's control system. The adjustment of the travel speed dynamically matches the changes in pesticide flow rate, ensuring that the amount of active pesticide or liquid fertilizer received per unit area always meets the agronomic prescription requirements under different microbubble concentration conditions. This application links flow rate variables with motion variables to form a closed-loop compensation mechanism.

[0092] This application embodiment introduces microbubbles as a physical interface control medium to achieve active intervention in the leaf droplet behavior during pesticide and liquid fertilizer spraying. It does not rely on chemical adjuvants, avoiding potential issues of active ingredient inactivation or environmental residues caused by the introduction of chemical components, thus providing a new technical path for green agriculture practices. By operating multiple microbubble generators in parallel and activating different numbers of generators under a fixed air intake condition, combined with the synchronous adjustment of the pesticide flow rate in the liquid pipeline, online continuous control of microbubble concentration is achieved while maintaining the stability of microbubble particle size. Furthermore, to address fluctuations in the amount of pesticide applied per unit area due to changes in pesticide flow rate during spraying, the system dynamically compensates by adjusting the equipment's travel speed in a coordinated manner, ensuring the precise execution of the active ingredient deposition amount set in the agronomic prescription. The entire system forms a complete closed loop from microbubble generation and concentration control to constant dosage, improving the level of intelligence in spraying operations.

[0093] In one possible implementation, the microbubble-based spraying method provided in this application can be applied to a microbubble-based spraying system. Figure 7 This is a schematic diagram of the microbubble-based spraying system provided by the present invention, as shown below. Figure 7 As shown, the microbubble-based spraying system comprises: a microbubble generating device, a pesticide delivery device, a spraying device, and a controller. The microbubble generating device includes: an air pump and piping, multiple microbubble generators, and a switching valve; the pesticide delivery device includes: a pesticide tank, pesticide piping, a flow regulating valve, and a flow sensor; the spraying device includes atomizing nozzles; and the controller includes a positioning device.

[0094] Specifically, the liquid pesticide (a water-based solution of pesticide or liquid fertilizer) is delivered from the pesticide tank to the pesticide pipeline. Multiple microbubble generators are connected in parallel along the pipeline, each controlled by a switching valve. The microbubble generators operate under a fixed air intake, producing microbubbles of stable size and injecting them into the pesticide flow in the pipeline, forming a gas-liquid mixture. The controller can activate different numbers of microbubble generators to coarsely adjust the concentration based on a preset concentration, and simultaneously adjust the flow rate of the pesticide delivered to the pipeline for fine-tuning, thus achieving high-resolution continuous output of the concentration. Finally, the gas-liquid mixture is delivered to the atomizing nozzle to form droplets that are sprayed onto the crop leaves.

[0095] For example, an agricultural drone equipped with a microbubble-based spraying system can be deployed in wheat-corn rotation farmland to apply 8% UAN liquid fertilizer. The drone's tank contains this concentration of UAN solution. The system can integrate multiple identical membrane-dispersed microbubble generators connected in parallel to the main fertilizer solution flow path. Each generator is equipped with an independent micro-solenoid valve and air pressure stabilization device, maintaining a constant air intake during operation. The main fertilizer solution is delivered using a diaphragm pump, with adjustable flow rate within a certain range. The drone's flight control system can be equipped with a carrier phase differential real-time high-precision positioning (Real-Time Kinematic Global Navigation Satellite System, RTK-GNSS) module to acquire high-precision position and velocity information in real time. During operation, the drone flies along a preset route. In cornfield spraying conditions, the liquid flow rate is adjusted to a higher level to generate high-density microbubbles, promoting rapid droplet rolling off the corn leaf surface, reducing retention, and lowering the risk of leaf burn. In wheat field spraying operations, increasing the fertilizer solution flow rate and maintaining a relatively low concentration of microbubbles ensures that the liquid fertilizer has sufficient wetting and spreading properties on the leaf surface. The system integrates GNSS positioning and velocity measurement signals, combined with real-time fertilizer solution flow rate and preset fertilizer application rate per unit area, dynamically adjusting the flight speed to ensure that the deposition amount of UAN liquid fertilizer in different crop areas accurately matches the agronomic prescription requirements, achieving efficient, safe, and variable-rate fertilization operations for crops such as wheat and corn.

[0096] The microbubble-based spraying device provided by the present invention will be described below. The microbubble-based spraying device described below and the microbubble-based spraying method described above can be referred to in correspondence.

[0097] Figure 8 This is a schematic diagram of the microbubble-based spraying device provided by the present invention, as shown below. Figure 8 As shown, the spraying device based on microbubbles includes the following modules: microbubble generation module 801, gas-liquid mixing module 802, spraying module 803, and processing module 804. The microbubble generation module 801 is used to control the generation rate of microbubbles based on a preset concentration, wherein the particle size of the microbubbles is smaller than the preset particle size. The gas-liquid mixing module 802 is used to inject microbubbles into the liquid to be sprayed to obtain a gas-liquid mixed liquid. The spraying module 803 is used to spray a gas-liquid mixture of pesticides onto the leaves of plants.

[0098] According to the present invention, a microbubble-based spraying device is provided, wherein a preset concentration is used to adjust the retention state of the gas-liquid mixed solution on the leaf surface of the plant, and the retention state includes at least one of the following: droplet extension range, droplet retention time, and droplet rolling trend; and a processing module 804 is used to determine the preset concentration based on the efficacy of the solution to be sprayed on the plant.

[0099] According to the present invention, a microbubble-based spraying device is provided, wherein microbubbles are generated by at least one of a plurality of microbubble generators; the microbubble generation module 801 is specifically used for: Based on the preset concentration, determine the target number of microbubble generators that generate microbubbles; Based on a target number of microbubble generators, microbubbles are generated.

[0100] According to the microbubble-based spraying device provided by the present invention, the processing module 804 is further used to adjust the flow rate of the liquid to be sprayed in order to adjust the concentration of microbubbles in the gas-liquid mixed liquid.

[0101] According to the microbubble-based spraying device provided by the present invention, the processing module 804 is further used to determine the flow rate of the liquid to be sprayed based on the spraying amplitude parameters, the amount of liquid to be sprayed, and the equipment moving speed, wherein the equipment moving speed and the flow rate of the liquid to be sprayed are directly proportional.

[0102] According to the microbubble-based spraying device provided by the present invention, the processing module 804 is further used to determine the equipment moving speed based on the spraying amplitude parameters, the amount of pesticide sprayed, and the flow rate of the pesticide to be sprayed, wherein the equipment moving speed and the flow rate of the pesticide to be sprayed are directly proportional.

[0103] Figure 9 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 9 As shown, the electronic device may include a processor 910, a communication interface 920, a memory 930, and a communication bus 940. The processor 910, communication interface 920, and memory 930 communicate with each other via the communication bus 940. The processor 910 can call logic instructions in the memory 930 to execute a microbubble-based spraying method. This method includes: controlling the generation rate of microbubbles based on a preset concentration, wherein the microbubble particle size is smaller than a preset particle size; injecting microbubbles into the pesticide solution to be sprayed to obtain a gas-liquid mixture; and spraying the gas-liquid mixture onto the leaves of plants.

[0104] Furthermore, the logical instructions in the aforementioned memory 930 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part 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 the present invention. 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.

[0105] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the spraying method based on microbubbles provided by the above methods. The method includes: controlling the generation rate of microbubbles based on a preset concentration, wherein the particle size of the microbubbles is smaller than the preset particle size; injecting microbubbles into the liquid to be sprayed to obtain a gas-liquid mixture; and spraying the gas-liquid mixture onto the leaves of plants.

[0106] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the spraying method based on microbubbles provided by the above methods, the method comprising: controlling the generation rate of microbubbles based on a preset concentration, wherein the particle size of the microbubbles is smaller than a preset particle size; injecting microbubbles into a liquid to be sprayed to obtain a gas-liquid mixture; and spraying the gas-liquid mixture onto the leaves of plants.

[0107] The device embodiments described above are merely illustrative. 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 modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0108] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spraying method based on microbubbles, characterized in that, include: The generation rate of microbubbles is controlled based on a preset concentration, and the particle size of the microbubbles is smaller than the preset particle size. The ultra-microbubbles are injected into the liquid medicine to be sprayed to obtain a gas-liquid mixed liquid medicine; The gas-liquid mixture is sprayed onto the leaves of the plant.

2. The spraying method based on microbubbles according to claim 1, characterized in that, The preset concentration is used to adjust the retention state of the gas-liquid mixture on the leaf surface of the plant. The retention state includes at least one of the following: droplet extension range, droplet retention time, and droplet rolling trend. The method further includes: The preset concentration is determined based on the efficacy of the pesticide solution to be sprayed on the plant.

3. The spraying method based on microbubbles according to claim 1, characterized in that, The microbubbles are generated by at least one of a plurality of microbubble generators. The method of controlling the generation rate of microbubbles based on a preset concentration includes: Based on the preset concentration, determine the target number of microbubble generators that generate the microbubbles; The microbubbles are generated based on a target number of microbubble generators among the plurality of microbubble generators.

4. The spraying method based on microbubbles according to any one of claims 1 to 3, characterized in that, The method further includes: Adjust the flow rate of the liquid medicine to be sprayed to adjust the concentration of the ultra-microbubbles in the gas-liquid mixture.

5. The spraying method based on microbubbles according to any one of claims 1 to 3, characterized in that, The method further includes: Based on the spraying amplitude parameters, the amount of pesticide applied, and the equipment moving speed, the flow rate of the pesticide to be sprayed is determined, and the equipment moving speed is directly proportional to the flow rate of the pesticide to be sprayed.

6. The spraying method based on microbubbles according to any one of claims 1 to 3, characterized in that, The method further includes: The moving speed of the equipment is determined based on the spraying amplitude parameters, the amount of pesticide applied, and the flow rate of the pesticide to be sprayed. The moving speed of the equipment is directly proportional to the flow rate of the pesticide to be sprayed.

7. A spraying device based on microbubbles, characterized in that, include: The module consists of an ultra-microbubble generation module, a gas-liquid mixing module, and a spraying module. The microbubble generation module is used to control the generation rate of microbubbles based on a preset concentration, wherein the particle size of the microbubbles is smaller than the preset particle size. The gas-liquid mixing module is used to inject the ultra-microbubbles into the liquid medicine to be sprayed to obtain a gas-liquid mixed liquid medicine. The spraying module is used to spray the gas-liquid mixture onto the leaves of plants.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the microbubble-based spraying method as described in any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the microbubble-based spraying method as described in any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the microbubble-based spraying method as described in any one of claims 1 to 6.

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