CN111762323A - Net type aerial fog rectifying device of plant protection unmanned aerial vehicle and operation method thereof - Google Patents
Net type aerial fog rectifying device of plant protection unmanned aerial vehicle and operation method thereof Download PDFInfo
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- CN111762323A CN111762323A CN202010595669.5A CN202010595669A CN111762323A CN 111762323 A CN111762323 A CN 111762323A CN 202010595669 A CN202010595669 A CN 202010595669A CN 111762323 A CN111762323 A CN 111762323A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0003—Atomisers or mist blowers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
Abstract
The invention discloses a net type aerial fog rectifying device of a plant protection unmanned aerial vehicle and an operation method thereof, wherein the net type aerial fog rectifying device comprises a bracket, an electric control system and an aerial fog rectifying mechanism; the unmanned aerial vehicle is provided with spraying equipment, the bracket is connected with a foot rest of the unmanned aerial vehicle, the electric control system comprises a power supply, an electric control box, a control unit, a plurality of gyroscopes and actuators, the electric control box is installed on the top surface of the bracket, the power supply and the control unit are arranged in the electric control box, the actuators are installed on the bottom surface of the bracket, the control unit is electrically connected with the actuators, the plurality of gyroscopes are symmetrically installed on the bracket by taking the symmetric center of a rotor wing of the unmanned aerial vehicle as the center, and the plurality of gyroscopes are electrically connected with the control; the aerial fog rectification mechanism comprises a sleeve, a telescopic main rib, a plurality of telescopic supporting rods, a plurality of sensors and a rectification mesh enclosure, the actuator is used for controlling the turning of the sleeve, the stretching of the telescopic main rib and the stretching, lifting and rotating of the telescopic supporting rods, and the power supply is used for supplying power to the control unit, the actuator, the telescopic main rib, the telescopic supporting rods and the rectification mesh enclosure respectively.
Description
Technical Field
The invention relates to the technical field of agricultural aviation plant protection spraying, in particular to a net type aerial fog rectifying device of a plant protection unmanned aerial vehicle and an operation method thereof.
Background
The rural areas in China are increasingly wastefully exhausted, the agricultural mechanization becomes a second way for agricultural development in China, various agricultural mechanical equipment is promoted by the agricultural mechanization, and the plant protection unmanned aerial vehicle is widely seen and adopted by the market due to the characteristics of high efficiency, flexibility and safety.
The plant protection unmanned aerial vehicle has wide application scenes (Chunduri and Menaka 2019) in agriculture, the low-altitude and low-volume pesticide application technology is taken as a hot point application, and the application is always oriented to various directions in order to achieve the expected prevention and control effect and avoid pesticide waste and improve the spray droplet coverage rate and spray accuracy. For example, in "a method and a system for plant protection spraying operation based on unmanned aerial vehicle" disclosed in the invention patent with the publication of publication number CN109283937A, how to design a route track surrounding spraying for the obtained geographical information data of agricultural conditions as the basis of the subsequent route track design of spraying, and design a spraying route of plant protection operation according to the topological relation of plant terrain sequence is disclosed.
Besides optimizing air route planning, methods such as optimizing spraying rules, spraying nozzles or adding a flight control assistant and the like are used for improving spraying operation efficiency, but the methods are required to be applied to a large amount of research and development efforts, generally cannot be widely applied to various machine types, and are difficult to overcome the influence of environmental factors, so that the spraying level is kept stable, such as an external wind field during spraying operation, the wind direction changes a spraying deposition area, and the wind speed has great influence on the particle size and uniformity of fog drops.
In order to make up for the disadvantages of the above methods, there is a need for a rectifying device that can promote accurate spraying and can be conveniently installed below any plant protection unmanned aerial vehicle.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a net type aerial fog rectifying device of a plant protection unmanned aerial vehicle, which solves the problems that an external wind field and a wind direction can change a spraying deposition area during spraying operation, and the wind speed has great influence on the grain diameter and uniformity of aerial fog drops.
Another object of the present invention is to provide an operation method of the mesh type mist rectifier of the plant protection unmanned aerial vehicle.
The technical scheme of the invention is as follows: a net type aerial fog rectifying device of a plant protection unmanned aerial vehicle comprises a bracket, an electric control system and an aerial fog rectifying mechanism; the unmanned aerial vehicle is provided with spraying equipment, the bracket is connected with a foot rest of the unmanned aerial vehicle, the electric control system comprises a power supply, an electric control box, a control unit, a plurality of gyroscopes and actuators, the electric control box is installed on the top surface of the bracket, the power supply and the control unit are arranged in the electric control box, the actuators are installed on the bottom surface of the bracket, the control unit is electrically connected with the actuators, the plurality of gyroscopes are symmetrically installed on the bracket by taking the symmetric center of a rotor wing of the unmanned aerial vehicle as the center, and the plurality of gyroscopes are electrically connected with the control; the aerial fog rectification mechanism comprises a sleeve, a telescopic main rib, a plurality of telescopic supporting rods, a plurality of sensors and a rectification mesh enclosure, the sleeve is connected with the actuator, the sensors are distributed on the rectification mesh enclosure and used for collecting aerial fog flow rate, deformation quantity and other data of the aerial fog flow direction and the rectification mesh enclosure, the sensors are respectively electrically connected with the control unit, one end of the telescopic main rib is connected into the sleeve, the other end of the telescopic main rib is connected with the center of the rectification mesh enclosure, the telescopic supporting rods are uniformly distributed on the outer side surface of the telescopic main rib and can rotate and lift up and down along the telescopic main rib, one ends of the telescopic supporting rods are respectively connected with the telescopic main rib, the other end of the telescopic main rib is respectively connected with the outer side of the rectification mesh, the sleeve, the telescopic main rib and the telescopic supporting rods are respectively electrically connected with the actuator, and the actuator is used for controlling the overturning of the, Lifting and rotating, and the power supply respectively supplies power to the control unit, the actuator, the telescopic main framework, the telescopic supporting rod and the rectification mesh enclosure. The telescopic main ribs and the telescopic supporting rods are driven to stretch, rotate and lift, so that the opening and closing of the rectifier mesh enclosure are adjusted.
Further, the rectifier mesh enclosure is composed of a plurality of sections of circumferential cables and a plurality of sections of radial cables, one ends of the plurality of sections of radial cables are respectively connected with each other to serve as the center of the rectifier mesh enclosure, the other ends of the plurality of sections of radial cables are respectively diffused outwards, the plurality of sections of circumferential cables are respectively connected with the plurality of sections of radial cables from inside to outside to form a plurality of grids, and thermistors are arranged at the joints of the circumferential cables and the radial cables.
Furthermore, the rectification net cover is made of elastic thermosensitive materials, and the surface of the rectification net cover is smooth. The temperature-sensitive material is adopted, the viscous resistance is small, the filter screen is electrified to generate a magnetic field, the turbulent airflow flowing through is decomposed into uniform and relatively parallel airflow, such as a small vortex street structure, the vertical penetration capacity of fog drops is enhanced, the deformation and heat dissipation conditions of the fog drops can represent the information of an aerosol flow field, and the posture of the rectification screen cover is further adjusted.
Further, plant protection unmanned aerial vehicle's net formula aerial fog fairing still includes linking up bracing piece and buckle, the buckle is connected with unmanned aerial vehicle's foot rest, links up the one end and the buckle connection of bracing piece, the other end and bracket connection.
Further, the length of the linking supporting rod is adjustable, and the buckle is a universal buckle.
Furthermore, the electric control box is made of waterproof and dustproof materials.
Furthermore, the telescopic main ribs and the telescopic supporting rods complete the telescopic operation through a stepping motor. The telescopic amount of the telescopic main ribs and the telescopic supporting rods can be quantitatively controlled through the stepping motor.
Further, the control unit comprises an input circuit, an A/D converter, an intelligent chip and an output circuit, the operation data collected by the sensor is transmitted to the intelligent chip, the operation data is analyzed and processed by the intelligent chip, an action instruction is output to the actuator, and the actuator regulates and controls the aerosol rectification mechanism according to the instruction.
The other technical scheme of the invention is as follows: the operation method of the net type aerial fog rectifying device of the plant protection unmanned aerial vehicle comprises the following steps:
step S1: switching on a power supply, connecting an electric control system of the unmanned aerial vehicle with a computer, checking the working states of the electric control system and a sensor, and presetting operation parameters such as the flying height and the spray width of the unmanned aerial vehicle;
step S2: mounting the bracket to a foot rest of the unmanned aerial vehicle, adjusting the sleeve to be parallel to the bracket, and accommodating the telescopic main framework, the telescopic supporting rod and the fairing net cover in the sleeve;
step S3: when the unmanned aerial vehicle rises to a certain height, the unmanned aerial vehicle remotely outputs an instruction to the control unit through the computer, the control unit outputs a signal to the actuator, the actuator drives the sleeve to rotate to be vertical to the ground, and the actuator further drives the telescopic main framework to extend, so that the rectifying net is stably opened in the air to perform spraying operation;
step S4: the rectification screen cover is electrified to generate a magnetic field, the turbulent airflow flowing through is decomposed into uniform and relatively parallel airflow, a sensor on the rectification screen cover collects the data such as the flow velocity of the aerosol, the flow direction of the aerosol and the deformation amount of the rectification screen cover and transmits the data to the control unit, the control unit outputs a signal to the actuator, the actuator further drives the telescopic support rod to stretch and lift, and the telescopic support rod stretches and lifts to further adjust the stretching radius of the rectification screen cover and the density and size of the grids, so that the flow direction of the rectified airflow is changed;
step S5: after the spraying operation is completed, the unmanned aerial vehicle is controlled to hover and send an instruction to the control unit, the control unit outputs a signal to the actuator, the actuator drives the telescopic supporting rod to contract firstly, then drives the telescopic main framework to contract, the rectification mesh enclosure is retracted into the sleeve, and finally the sleeve is rotated to enable the rectification mesh enclosure to be parallel to the bracket, and then the unmanned aerial vehicle is controlled to land.
Compared with the prior art, the invention has the following beneficial effects:
the bracket disclosed by the invention is quickly and conveniently installed on any plant protection unmanned aerial vehicle through the buckle to complete one-time installation, if the mechanical connecting piece has no fault, the bracket can be continuously and repeatedly used, the fairing net cover can be cleaned in a flowing water washing mode without being detached, and the bracket has the advantages of strong applicability and convenience.
The rectification mesh enclosure rectifies the lower wind field of the unmanned aerial vehicle with disordered original airflow into relatively parallel and uniform airflow, so that fog drops are accurately deposited in a target spraying area, the fog drop loss is reduced, the spraying operation effect of the plant protection unmanned aerial vehicle is improved, the spraying operation efficiency of the plant protection unmanned aerial vehicle is improved, the excessive condensation effect of transverse wind on the particle size of the fog drops can be effectively reduced during high-wind-speed operation of the plant protection unmanned aerial vehicle, the spraying uniformity is maintained, the effective deposition amount of the fog drops is improved, the rectification mesh enclosure has the rectification effect, and the lower washing airflow generated during low-altitude operation of the plant protection unmanned aerial vehicle can be softened, and the damage to crop canopies is relieved.
Drawings
Figure 1 is a front view of a mesh aerosol fairing of the present invention.
Fig. 2 is a top view of the mesh aerosol fairing of the present invention.
Fig. 3 is a perspective view of the mesh type gas mist rectifier device of the present invention.
FIG. 4 is a top view of the bracket and the upper structure of the bracket of the present invention.
Fig. 5 is a schematic structural view of the rectification mesh enclosure accommodated in the sleeve according to the present invention.
Bracket 1, bracing piece 2, buckle 3, unmanned aerial vehicle 4, foot rest 5, automatically controlled box 6, gyroscope 7, executor 8, sleeve 9, flexible main bone 10, flexible branch 11, rectifier mesh enclosure 12, hoop cable 13, radial cable 14.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples
As shown in fig. 1 and fig. 3, the present embodiment provides a net type aerial fog fairing of plant protection unmanned aerial vehicle, including bracket 1, linking support rod 2, buckle 3, electrical control system and aerial fog fairing mechanism.
As shown in fig. 3 and 4, unmanned aerial vehicle 4 carries with spraying equipment, and the bracket is square platform, and it is adjustable to link up the length of bracing piece, and the buckle is universal buckle, and the buckle is connected with unmanned aerial vehicle's foot rest 5, and the one end and the buckle that link up the bracing piece are connected, the other end and bracket connection.
As shown in fig. 3 and 4, electrical system includes the power, automatically controlled box 6, the control unit, a plurality of gyroscopes 7 and executor 8, automatically controlled box is installed in the top surface of bracket, automatically controlled box adopts waterproof dustproof material to make, power and control unit locate in automatically controlled box, the executor is installed in the bottom surface of bracket, the control unit and executor electric connection, a plurality of gyroscopes use the symmetric center of unmanned aerial vehicle rotor to install to the bracket as central symmetry, a plurality of gyroscopes and control unit electric connection, the gyroscope, automatically controlled box, bracket and executor constitute cloud platform mechanism, be used for judging real-time flight gesture, reduce the influence of inertial force and external wind field to fog rectification mechanism.
As shown in fig. 1 and 2, the aerosol rectification mechanism includes a sleeve 9, a main telescopic rod 10, a plurality of telescopic struts 11, a plurality of sensors and a rectification mesh enclosure 12, the sleeve is connected with the actuator, the plurality of sensors are distributed on the rectification mesh enclosure, the plurality of sensors are used for collecting data such as aerosol flow rate, aerosol flow direction and deformation of the rectification mesh enclosure, the plurality of sensors are respectively electrically connected with the control unit, the sleeve, the main telescopic rod and the telescopic struts are respectively electrically connected with the actuator, the control unit includes an input circuit, an a/D converter, an intelligent chip, an output circuit and the like, operation data collected by the sensors are transmitted to the intelligent chip, the operation data are analyzed and processed by the intelligent chip, an action instruction is output to the actuator, the actuator regulates and controls the aerosol rectification mechanism according to the instruction, the regulated and controlled parts are respectively the planar rotation of the sleeve, the main telescopic skeleton and the telescopic skeleton of the main skeleton and, Rotating and lifting up and down.
As shown in fig. 1 and 3, one end of the telescopic main rib is connected to the sleeve, the other end of the telescopic main rib is connected with the center of the rectifier mesh enclosure, the plurality of telescopic supporting rods are uniformly distributed on the outer side surface of the telescopic main rib, the plurality of telescopic supporting rods can rotate along the telescopic main rib and ascend and descend, one ends of the plurality of telescopic supporting rods are respectively connected with the telescopic main rib, the other ends of the plurality of telescopic supporting rods are respectively connected with the outer side of the rectifier mesh enclosure, the power supply is respectively a control unit, an actuator, the telescopic main rib, the telescopic supporting rods and the rectifier mesh enclosure for supplying power, and the telescopic main rib and. The telescopic amount of the telescopic main ribs and the telescopic supporting rods can be quantitatively controlled through the stepping motor. The telescopic main ribs and the telescopic supporting rods are driven to stretch, rotate and lift, so that the opening and closing of the rectifier mesh enclosure are adjusted.
As shown in fig. 1, 2 and 3, the rectifier mesh enclosure is composed of a plurality of sections of circumferential cables 13 and a plurality of sections of radial cables 14, one ends of the plurality of sections of radial cables are respectively connected with each other to serve as the center of the rectifier mesh enclosure, the other ends of the plurality of sections of radial cables are respectively diffused outwards, the plurality of sections of circumferential cables are respectively connected with the plurality of sections of radial cables from inside to outside to form a plurality of grids, thermistors are arranged at the joints of the circumferential cables and the radial cables, the rectifier mesh enclosure is made of elastic thermosensitive materials, and the surface of the rectifier mesh enclosure. The temperature-sensitive material is adopted, the viscous resistance is small, the filter screen is electrified to generate a magnetic field, the turbulent airflow flowing through is decomposed into uniform and relatively parallel airflow, such as a small vortex street structure, the vertical penetration capacity of fog drops is enhanced, the deformation and heat dissipation conditions of the fog drops can represent the information of an aerosol flow field, and the posture of the rectification screen cover is further adjusted.
The rectification mesh enclosure rectifies the lower wind field of the unmanned aerial vehicle with disordered original airflow into relatively parallel and uniform airflow, so that fog drops are accurately deposited in a target spraying area, the fog drop loss is reduced, the spraying operation effect of the plant protection unmanned aerial vehicle is improved, the spraying operation efficiency of the plant protection unmanned aerial vehicle is improved, the excessive condensation effect of transverse wind on the particle size of the fog drops can be effectively reduced during high-wind-speed operation of the plant protection unmanned aerial vehicle, the spraying uniformity is maintained, the effective deposition amount of the fog drops is improved, the rectification mesh enclosure has the rectification effect, and the lower washing airflow generated during low-altitude operation of the plant protection unmanned aerial vehicle can be softened, and the damage to crop canopies is relieved.
The operation method of the net type aerial fog rectifying device of the plant protection unmanned aerial vehicle comprises the following steps:
step S1: switching on a power supply, connecting an electric control system of the unmanned aerial vehicle with a computer, checking the working states of the electric control system and a sensor, and presetting operation parameters such as the flying height and the spray width of the unmanned aerial vehicle;
step S2: mounting the bracket to a foot rest of the unmanned aerial vehicle, adjusting the sleeve to be parallel to the bracket, and accommodating the telescopic main ribs, the telescopic supporting rods and the fairing net cover in the sleeve (as shown in fig. 5);
step S3: when the unmanned aerial vehicle rises to a certain height, the unmanned aerial vehicle remotely outputs an instruction to the control unit through the computer, the control unit outputs a signal to the actuator, the actuator drives the sleeve to rotate to be vertical to the ground, and the actuator further drives the telescopic main framework to extend, so that the rectifying net is stably opened in the air to perform spraying operation;
step S4: the rectification screen cover is electrified to generate a magnetic field, the turbulent airflow flowing through is decomposed into uniform and relatively parallel airflow, a sensor on the rectification screen cover collects the data such as the flow velocity of the aerosol, the flow direction of the aerosol and the deformation amount of the rectification screen cover and transmits the data to the control unit, the control unit outputs a signal to the actuator, the actuator further drives the telescopic support rod to stretch and lift, and the telescopic support rod stretches and lifts to further adjust the stretching radius of the rectification screen cover and the density and size of the grids, so that the flow direction of the rectified airflow is changed;
step S5: after the spraying operation is completed, the unmanned aerial vehicle is controlled to hover and send an instruction to the control unit, the control unit outputs a signal to the actuator, the actuator drives the telescopic supporting rod to contract firstly, then drives the telescopic main framework to contract, the rectification mesh enclosure is retracted into the sleeve, and finally the sleeve is rotated to enable the rectification mesh enclosure to be parallel to the bracket, and then the unmanned aerial vehicle is controlled to land.
As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.
Claims (9)
1. A net type aerial fog rectifying device of a plant protection unmanned aerial vehicle is characterized by comprising a bracket, an electric control system and an aerial fog rectifying mechanism;
the unmanned aerial vehicle is provided with spraying equipment, the bracket is connected with a foot rest of the unmanned aerial vehicle, the electric control system comprises a power supply, an electric control box, a control unit, a plurality of gyroscopes and actuators, the electric control box is installed on the top surface of the bracket, the power supply and the control unit are arranged in the electric control box, the actuators are installed on the bottom surface of the bracket, the control unit is electrically connected with the actuators, the plurality of gyroscopes are symmetrically installed on the bracket by taking the symmetric center of a rotor wing of the unmanned aerial vehicle as the center, and the plurality of gyroscopes are electrically connected with the control;
the aerial fog rectification mechanism comprises a sleeve, a telescopic main rib, a plurality of telescopic supporting rods, a plurality of sensors and a rectification mesh enclosure, the sleeve is connected with the actuator, the sensors are distributed on the rectification mesh enclosure and used for collecting aerial fog flow rate, deformation quantity and other data of the aerial fog flow direction and the rectification mesh enclosure, the sensors are respectively electrically connected with the control unit, one end of the telescopic main rib is connected into the sleeve, the other end of the telescopic main rib is connected with the center of the rectification mesh enclosure, the telescopic supporting rods are uniformly distributed on the outer side surface of the telescopic main rib and can rotate and lift up and down along the telescopic main rib, one ends of the telescopic supporting rods are respectively connected with the telescopic main rib, the other end of the telescopic main rib is respectively connected with the outer side of the rectification mesh, the sleeve, the telescopic main rib and the telescopic supporting rods are respectively electrically connected with the actuator, and the actuator is used for controlling the overturning of the, Lifting and rotating, and the power supply respectively supplies power to the control unit, the actuator, the telescopic main framework, the telescopic supporting rod and the rectification mesh enclosure.
2. The mesh type aerial fog rectification device of the plant protection unmanned aerial vehicle as claimed in claim 1, wherein the rectification mesh enclosure is composed of a plurality of segments of circumferential cables and a plurality of segments of radial cables, one ends of the radial cables are respectively connected with each other to serve as the center of the rectification mesh enclosure, the other ends of the radial cables are respectively diverged outwards, and the circumferential cables are respectively connected with the radial cables from inside to outside to form a plurality of meshes.
3. The mesh type aerial fog fairing of the plant protection unmanned aerial vehicle as claimed in claim 1, wherein the fairing mesh enclosure is made of elastic heat sensitive material, and the surface of the fairing mesh enclosure is smooth.
4. The net type aerial fog rectifying device of the plant protection unmanned aerial vehicle as claimed in claim 1, further comprising a joint support rod and a buckle, wherein the buckle is connected with a foot stool of the unmanned aerial vehicle, one end of the joint support rod is connected with the buckle, and the other end of the joint support rod is connected with the bracket.
5. The mesh type aerial fog fairing of the plant protection unmanned aerial vehicle as claimed in claim 4, wherein the length of the engagement support rod is adjustable, and the buckle is a universal buckle.
6. The mesh type aerial fog fairing of the plant protection unmanned aerial vehicle as claimed in claim 1, wherein the electric control box is made of waterproof and dustproof material.
7. The mesh type aerial fog rectification device of the plant protection unmanned aerial vehicle as claimed in claim 1, wherein the telescopic main frame and the telescopic strut are telescopic by a stepping motor.
8. The net type aerial fog rectifying device of the plant protection unmanned aerial vehicle as claimed in claim 1, wherein the control unit comprises an input circuit, an A/D converter, an intelligent chip and an output circuit, the operation data collected by the sensor is transmitted to the intelligent chip, the operation data is analyzed and processed by the intelligent chip, then an action command is output to the actuator, and the actuator regulates and controls the aerial fog rectifying mechanism according to the command.
9. A method for operating a mesh type aerial fog rectification device of a plant protection unmanned aerial vehicle as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
step S1: switching on a power supply, connecting an electric control system of the unmanned aerial vehicle with a computer, checking the working states of the electric control system and a sensor, and presetting operation parameters such as the flying height and the spray width of the unmanned aerial vehicle;
step S2: mounting the bracket to a foot rest of the unmanned aerial vehicle, adjusting the sleeve to be parallel to the bracket, and accommodating the telescopic main framework, the telescopic supporting rod and the fairing net cover in the sleeve;
step S3: when the unmanned aerial vehicle rises to a certain height, the unmanned aerial vehicle remotely outputs an instruction to the control unit through the computer, the control unit outputs a signal to the actuator, the actuator drives the sleeve to rotate to be vertical to the ground, and the actuator further drives the telescopic main framework to extend, so that the rectifying net is stably opened in the air to perform spraying operation;
step S4: the rectification screen cover is electrified to generate a magnetic field, the turbulent airflow flowing through is decomposed into uniform and relatively parallel airflow, a sensor on the rectification screen cover collects the data such as the flow velocity of the aerosol, the flow direction of the aerosol and the deformation amount of the rectification screen cover and transmits the data to the control unit, the control unit outputs a signal to the actuator, the actuator further drives the telescopic support rod to stretch and lift, and the telescopic support rod stretches and lifts to further adjust the stretching radius of the rectification screen cover and the density and size of the grids, so that the flow direction of the rectified airflow is changed;
step S5: after the spraying operation is completed, the unmanned aerial vehicle is controlled to hover and send an instruction to the control unit, the control unit outputs a signal to the actuator, the actuator drives the telescopic supporting rod to contract firstly, then drives the telescopic main framework to contract, the rectification mesh enclosure is retracted into the sleeve, and finally the sleeve is rotated to enable the rectification mesh enclosure to be parallel to the bracket, and then the unmanned aerial vehicle is controlled to land.
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| CN202010595669.5A CN111762323B (en) | 2020-06-28 | 2020-06-28 | Net type aerial fog rectifying device of plant protection unmanned aerial vehicle and operation method thereof |
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| CN202010595669.5A CN111762323B (en) | 2020-06-28 | 2020-06-28 | Net type aerial fog rectifying device of plant protection unmanned aerial vehicle and operation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407283A (en) * | 2020-11-24 | 2021-02-26 | 广东技术师范大学 | Unmanned aerial vehicle spraying operation method and device based on multi-level cooperation |
| CN112763248A (en) * | 2020-12-29 | 2021-05-07 | 华南农业大学 | Detection device and method for directly measuring spraying physical and chemical characteristics of plant protection aircraft |
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