11 results about "Spray drift" patented technology

The present application relates to the technical field of pesticide application, and particularly relates to a pesticide spraying drift prevention method, obtaining plant image information to be identified, identifying the plant to be identified according to the plant image information to be identified, obtaining a three-dimensional model of a plant to be sprayed if the identification result is a first identification result, segmenting the three-dimensional model of the plant to be sprayed into a plurality of sub-spraying areas, obtaining a preset spraying path according to characteristic parameters, spraying starting point information and the three-dimensional model of the plant to be sprayed, obtaining real-time spraying environment parameters at each spraying time node, determining a real-time spraying drift amount according to the real-time spraying environment parameters, and correcting and adjusting the preset spraying path according to the real-time spraying drift amount. The method can improve the deposition of pesticides in a target area, reduce pollution to non-target areas, protect the ecological environment, improve the use effect of pesticides and reduce resource waste.

The present invention pertains to the agricultural field, and particularly to the use of tall oil fatty acids as a phytosanitary adjuvant, particularly for preventing spray drift. The present inventors have indeed shown that the introduction of tall oil fatty acids into phytosanitary compositions allows increasing droplet size distribution upon spraying and therefore reducing off-target spraying. The present invention therefore provides methods for generating droplets, treating plants and for preventing spray drift. The invention also relates to phytosanitary compositions comprising tall oil fatty acids.

The application discloses a plant protection unmanned aerial vehicle spraying drift amount prediction method based on an ANN-GWO and related equipment, test parameter data and drift amount data of a plurality of candidate characteristic parameters are collected in a test phase, and correlation analysis is performed by using a random forest algorithm to determine at least one target characteristic parameter for spraying drift amount prediction, the cooperation of the plurality of candidate characteristic parameters and the random forest algorithm is effectively used, the correlation and reliability of the selected target characteristic parameter for spraying drift amount prediction are ensured, and the data volume in model training and spraying drift amount prediction is reduced. By using an ANN-GWO artificial neural network model, the global search and local development capabilities of the GWO optimization algorithm are effectively utilized, the problem that convergence is difficult to be achieved by using part of the target characteristic parameters is solved, the uniformity of the weights of the plurality of target characteristic parameters is effectively considered, and the reliability of spraying drift amount prediction under different target downwind distances is improved.

The invention provides an intelligent self-adaptive spraying unmanned aerial vehicle system, and relates to the field of agricultural intelligent spraying, the system comprises a target area verification module, a monitoring area sensitivity determination module, a spray drift prediction module and a boundary point location updating module, the target area verification module determines whether a spraying unmanned aerial vehicle arrives at a preset target area, and the monitoring area sensitivity determination module determines whether the spraying unmanned aerial vehicle arrives at the boundary point location updating module; determining whether the crop information in the target area is matched with the spraying object information or not; the monitoring area sensitivity judgment module identifies crop information in a monitoring area and determines a predicted sensitive value of crops in the monitoring area to a sprayed object; the spray drift prediction module determines a predicted landing area of spray droplets when the spray unmanned aerial vehicle sprays at a preset boundary point in the target area; and a boundary point location updating module determines entity-free isolation zone information according to the predicted landing area and the predicted sensitive value, and updates an actual boundary point location in the target area. The system dynamically adapts to different sprayed objects and weather, and cross-boundary pollution of the sprayed objects is effectively avoided.

The utility model belongs to the agricultural pesticide application technical field especially relates to a kind of potato ridge directional spray anti-drift cover, comprising: fixed block, clamping assembly is arranged on the fixed block, the fixed block is fixed on spray rod by the clamping assembly;Wind shield, the top of the wind shield is provided with insert block, the fixed block is provided with slot, the slot is compatible with the insert block, the slot is provided with clamping assembly, the insert block is limited with the fixed block by the clamping assembly;The inside bottom of the wind shield is provided with collecting groove, the collecting groove is communicated with a plurality of liquid collecting pieces, the liquid collecting piece is equidistantly arranged along the circumference of the wind shield.The utility model is equipped with the collecting groove and the liquid collecting piece of equidistantly distributed circumferentially in the inside bottom of wind shield, can efficiently recycle the dripping pesticide liquid in the process of spraying, avoid pesticide liquid waste.

This invention provides a spray drift monitoring and control system for pesticide sprayers and its usage method. The system is installed on the pesticide sprayer and includes: an information acquisition module for collecting environmental and droplet information; a central control system for receiving the environmental and droplet information in real time and controlling the opening and closing of a solenoid valve after analyzing the information; and an actuator for spraying according to the opening and closing of the solenoid valve. This invention is applicable to plant protection operations in agricultural work, reducing pesticide drift and production costs, while also protecting crops from damage caused by excessive pesticide application.

The present invention is a multiplexed inertial coalescence filter system that minimizes spray drift and maximizes droplet transfer efficiency to improve the precision and safety of industrial spray applications. In an alternate embodiment, a hollow multiplexed inertial coalescence filter is rotated around its longitudinal axis to capture droplets or particles from a fluid stream flowing therethrough.

Spray drift reducing agents for agrochemical formulations for spray drift reduction in agrochemical formulations containing active agents and / or micronutrients. The reducing agent is selected from an alkoxylated polyol or polyamine, which is optionally acyl-terminated, and the formulation may optionally comprise a nonionic alkoxylate. Also provided are methods of making the formulations, and the use of the formulations to reduce spray drift in the case of applying agrochemical formulations to plants.

The disclosure relates to agricultural spray compositions that reduce spray drift using a drift control adjuvant comprising decarboxylated rosin acid (DCR), a surfactant system, and optional components, in combination with an agricultural chemical component in a carrier. The drift control agent may be supplied as neat DCR or as part of the adjuvant. Methods include preparing the spray by (i) combining the adjuvant with a concentrated agricultural chemical component to form a concentrate composition and diluting with a carrier, or (ii) diluting the agricultural chemical component with a carrier and subsequently adding the adjuvant. When discharged through spray nozzles, the compositions increase droplet size and narrow the droplet-size distribution, thereby reducing fine droplets and spray drift while maintaining coverage and compatibility across a range of agricultural actives.

The present invention discloses a method for reducing drift risk during plant protection drone spraying operations. The method includes first obtaining the drone's flight path while spraying pesticides in an operation area; obtaining the drone's real-time location and calculating a boundary distance x; obtaining the drone's height h relative to the target crop canopy in the operation area, the lateral wind speed v, and the sprayed droplet size α; and obtaining the spray drift distance d based on the relationship between the droplet size α, the ambient wind speed v, the height h relative to the target crop canopy, and the spray drift distance d. The droplet drift distance d is then compared with the boundary distance x. If the droplet drift distance d is less than the boundary distance x, the sprayed particle size is maintained unchanged; if it is greater than or equal to the boundary distance x, the sprayed particle size is increased so that the adjusted spray drift distance d is less than the boundary distance x. This method can solve the droplet drift problem of existing drone spraying, improving droplet utilization while reducing harm to adjacent crops, livestock, and humans.

The utility model discloses a salt spray testing machine for a metal product, and aims to solve the technical problems that in the prior art, when a cover of a salt spray testing machine is directly opened to observe a sample for a short time, salt spray drifts away to cause corrosion damage to external metal equipment and cause certain damage to a human respiratory system. The salt spray testing machine comprises a salt spray testing machine body, a machine cover is installed at the top end of the salt spray testing machine body, a communicating pipe is installed on the outer surface of the machine cover in a penetrating mode, a first air cylinder and a second air cylinder are installed at the two ends of the communicating pipe respectively, a through hole is formed in the end, away from the communicating pipe, of the first air cylinder, and a sliding rod is slidably installed in the through hole; through the design, the cover is kept in a clear and transparent state, workpieces in the salt spray tester body can be directly checked, corrosion damage to external metal equipment or damage to a human respiratory system caused by salt spray drifting when the cover of the salt spray tester is opened for temporarily observing a sample is prevented, and the use safety of the salt spray tester is ensured.