CN210533734U - Plant protection unmanned aerial vehicle fog distribution uniformity on-line measuring system - Google Patents
Plant protection unmanned aerial vehicle fog distribution uniformity on-line measuring system Download PDFInfo
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- CN210533734U CN210533734U CN201921947760.8U CN201921947760U CN210533734U CN 210533734 U CN210533734 U CN 210533734U CN 201921947760 U CN201921947760 U CN 201921947760U CN 210533734 U CN210533734 U CN 210533734U
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Abstract
The utility model discloses an on-line detection system for the fog distribution uniformity of a plant protection unmanned aerial vehicle, which comprises a fog distribution scanning system, a hydraulic lifting system, a wireless data transmission processing system and a water supply system; the fog amount distribution scanning system comprises a power device, a walking device, a three-section type fog droplet collecting device and a controller; the three-section type fog drop collecting device comprises a middle fog collecting groove, two expansion fog collecting grooves and a fog drop collector, wherein a liquid leakage port is formed in the bottom end of the middle fog collecting groove and communicated with the fog drop collector; the fog drop collector is provided with an automatic liquid drainage valve, an upper liquid level detection electrode and a lower liquid level detection electrode, the automatic liquid drainage valve is used for opening and closing the fog drop collector, and the upper liquid level detection electrode and the lower liquid level detection electrode are used for monitoring the volume of fog drops stored in the fog drop collector. The utility model discloses can measure plant protection unmanned aerial vehicle fog volume distribution uniformity fast accurately, and safe and reliable.
Description
Technical Field
The invention relates to the technical field of agricultural aviation, in particular to an on-line detection system for fog distribution uniformity of a plant protection unmanned aerial vehicle.
Background
At present, the spraying equipment matched with agricultural aviation pesticide application equipment in China has poor performance, the sprayed fog drops have wide spectrum and poor targeting property, the investment needs to be increased, and the specialized development of agricultural aviation plant protection is promoted. The mist distribution uniformity is an important index for measuring the spraying performance, the existing plant protection unmanned aircraft is simply spliced by a flight platform and spraying equipment, the spraying performance parameters and the flight parameters are not organically combined, orthogonal tests of various combinations are required to be carried out, the plant protection unmanned aircraft belongs to low-altitude low-volume pesticide application, different from the traditional spraying equipment, the precision required by the test is different, special test equipment is required to be developed, and the requirements of scientific research and test of the plant protection unmanned aircraft are met.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an online detection system for the fog distribution uniformity of a plant protection unmanned aerial vehicle, aiming at overcoming the defects of the prior art, the online detection system can quickly and accurately measure the fog distribution uniformity of the plant protection unmanned aerial vehicle, solve the problems of complexity and inaccuracy of the previous test method and meet the actual use requirements.
The technical scheme is as follows: the invention relates to an online detection system for fog distribution uniformity of a plant protection unmanned aerial vehicle, which comprises a fog distribution scanning system, a hydraulic lifting system, a wireless data transmission processing system and a water supply system; the hydraulic lifting system is used for fixing the plant protection unmanned aerial vehicle, the water supply system is communicated with a pesticide box of the plant protection unmanned aerial vehicle, the fog amount distribution scanning system is arranged below the plant protection unmanned aerial vehicle, and the wireless data transmission processing system is connected with a data output port of the fog amount distribution scanning system;
the fog amount distribution scanning system comprises a power device, a walking device, a three-section type fog droplet collecting device and a controller; the three-section type fog droplet collecting device comprises a middle fog collecting groove, expansion fog collecting grooves arranged on two sides of the middle fog collecting groove and a fog droplet collector arranged at the bottom of the middle fog collecting groove, wherein the expansion fog collecting grooves on the two sides are in butt joint communication with the middle fog collecting groove to form an inverted trapezoid, and the middle fog collecting groove is provided with a liquid leakage port communicated with the fog droplet collector; an automatic liquid drainage valve, an upper liquid level detection electrode and a lower liquid level detection electrode are arranged in the fog drop collector, the automatic liquid drainage valve is used for opening and closing the fog drop collector, and the upper liquid level detection electrode and the lower liquid level detection electrode are used for monitoring the fog amount collected in the fog drop collector; the walking device is connected with the bottom of the three-section type fog drop collecting device and is arranged in parallel with the narrower side edge of the three-section type fog drop collecting device, and the power device drives the three-section type fog drop collecting device to move to the other end along one end of the walking device;
the controller is connected with the power device, the automatic liquid discharge valve and the wireless data transmission processing system.
As an improvement of the technical scheme, the walking device consists of two parallel cylindrical guide rails and a sliding block, and the sliding block is connected with the bottom of the middle fog collecting groove through a bolt; the power device comprises a stepping motor, a coupler, a fixed seat, a ball screw and a nut seat, wherein an output shaft of the stepping motor, the coupler and the roller screw are sequentially connected; the ball screw is arranged between the two cylindrical guide rails in parallel, a fixing seat and a nut seat are arranged on the ball screw, the fixing seat is used for installing and fixing the power device, and the nut seat is connected with the bottom of the middle mist collecting groove through a bolt.
As an improvement of the technical scheme, the middle mist collecting groove and the two expansion mist collecting grooves are respectively provided with 8 transverse notches, liquid leakage holes are respectively formed below each notch of the middle mist collecting groove, and the mist collector is arranged corresponding to each liquid leakage hole.
As an improvement of the technical scheme, the installation angle between the expansion mist collecting groove and the middle mist collecting groove is larger than 15 degrees.
As an improvement of the technical scheme, the outer end of the expansion mist collecting groove is provided with a supporting leg, and the bottom of the supporting leg is provided with a pulley.
As an improvement of the technical scheme, the hydraulic lifting system comprises a plant protection unmanned aerial vehicle placing cross frame and movable hydraulic lifting platforms supported at two ends of the plant protection unmanned aerial vehicle placing cross frame.
As the improvement of above-mentioned technical scheme, plant protection unmanned aerial vehicle places the crossbearer and manages with two removals side by two fixed side, fixed side manages and is parallel to each other and the installation is fixed in mesa on the hydraulic lifting platform, two removals side manage and pass through the spout fixed and removal on the fixed side pipe.
As an improvement of the technical scheme, the wireless data transmission processing system comprises a wireless data transmission module, a wireless data receiving module and PC data processing software.
As an improvement of the technical scheme, the water supply system comprises a water tank, a water pump and a water pipe, wherein a water outlet of the water tank is communicated with a water inlet of the plant protection unmanned aerial vehicle through one end of the water pipe and the other end of the water pipe which are connected with the water pump.
The online detection method for the mist quantity distribution uniformity of the plant protection unmanned aerial vehicle is characterized by comprising the following steps:
s1: adjusting the distance of a moving square tube of a transverse frame for placing the plant protection unmanned aerial vehicle, placing the plant protection unmanned aerial vehicle on the transverse frame, and adjusting the position of the plant protection unmanned aerial vehicle to enable the spray amplitude direction of the plant protection unmanned aerial vehicle to be parallel to the moving direction of the three-section type fog droplet collecting device;
s2: lifting the plant protection unmanned aerial vehicle to a corresponding height by using the movable hydraulic lifting platform according to the detection requirement;
s3: the method comprises the steps that clean water is injected into a pesticide box of the plant protection unmanned aerial vehicle at regular time by using a water supply system, and the clean water in the pesticide box is ensured to be more than 1/3 of the capacity of the pesticide box;
s4: opening a spraying system of the plant protection unmanned aerial vehicle, and adjusting the spraying system to a corresponding spraying amount;
s5: opening PC data processing software, setting the required operation length of the three-section type fog droplet collecting device, controlling a stepping motor to drive the three-section type fog droplet collecting device to the boundary of the spray amplitude fog droplets, clicking to start testing, and simultaneously closing an automatic liquid discharge valve below each fog droplet collector;
s6: when the liquid levels of the fogdrops collected by the 8 fogdrops collectors all contact the upper liquid level detection electrode, the 8 automatic liquid discharge valves are opened simultaneously to empty the liquid in the fogdrops collectors, then the stepping motor drives the three-section fogdrops collecting device to move forward by 0.8m, and the liquid discharge valves below the fogdrops collectors are closed simultaneously;
s7: the whole system repeats the step S6, when the automatic liquid discharge valve is opened when the three-section type fog droplet collecting device runs to the last position, the PC data processing software finishes the test, the spraying system of the plant protection unmanned aerial vehicle is closed, and the hydraulic lifting platform is adjusted to put down the plant protection unmanned aerial vehicle;
s8: and post-processing the test data in PC data processing software, calculating the variation coefficient CV of the mist quantity distribution uniformity of the plant protection unmanned aircraft in the whole spraying amplitude direction, and completing result analysis.
Has the advantages that: compared with the prior art, the invention has the advantages that: the rapid test system for the mist distribution uniformity of the plant protection unmanned aerial vehicle provided by the invention changes the existing test method, the designed three-section type mist droplet collecting device is convenient to expand, the measurement range is adjustable and the range is large, and the rapid test system can adapt to the mist coverage range of various plant protection unmanned aerial vehicles; the three-section type fogdrop collecting device is provided with 8 fogdrop collectors, the measuring range is adjusted by changing the fogdrop collectors, the method of calculating the liquid loading time by adopting the rated capacity is adopted, the distribution uniformity of the fogdrop of the plant protection unmanned aerial vehicle can be quickly and accurately measured, and the three-section type fogdrop collecting device is safe and reliable. In addition, the test equipment disclosed by the invention is simple in structure, safe, reliable, strong in applicability and high in test accuracy.
Drawings
FIG. 1 is a perspective view of an on-line detection system for the mist quantity distribution uniformity of the plant protection unmanned aerial vehicle.
FIG. 2 is a front view of the system for on-line detection of mist quantity distribution uniformity of the plant protection unmanned aerial vehicle.
FIG. 3 is a top view of the system for on-line detection of mist quantity distribution uniformity of the plant protection unmanned aerial vehicle.
FIG. 4 is a schematic structural diagram of a power device and a traveling device according to the present invention.
Fig. 5 is a front view of the three-stage mist droplet collecting device of the present invention.
Fig. 6 is a top view of the three-stage mist collector of the present invention.
In the figure: 10. a fog amount distribution scanning system, 20, a hydraulic lifting system, 30, a wireless data transmission processing system, 40, a water supply system, 101, a power device, 102, a walking device, 103, a three-section fog drop collecting device, 104, a controller, 105, a power supply, a 201 movable hydraulic lifting platform, 202, a plant protection unmanned aerial vehicle placing cross frame, 301, a wireless data transmission module, 302, a wireless data receiving module, 401, a water tank, 402, a water pump, 403, a water pipe, 1011, a stepping motor, 1012, a coupler, 1013, a fixed seat, 1014, a ball screw, 1015, a nut seat, 1021, a cylindrical guide rail, 1022, a slide block, 1031, a middle fog collecting groove, 1032, an expansion fog collecting groove, 1033, a fog drop collector, 1034, a liquid leakage hole, 1035, an automatic liquid leakage valve, 1036, an upper liquid level detection electrode, 1037, a lower liquid level detection electrode, 1038, a pulley, 1039, a supporting leg, 2021, a fixed square pipe, 2022, a fixed square pipe, And moving the square tube.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1: the system for detecting the mist distribution uniformity of the plant protection unmanned aerial vehicle shown in fig. 1 to 6 comprises a mist distribution scanning system 10, a hydraulic lifting system 20, a wireless data transmission processing system 30 and a water supply system 40. The hydraulic lifting system 20 consists of two movable hydraulic lifting platforms 201 and a plant protection unmanned aerial vehicle placing transverse frame 202; the wireless data transmission processing system 30 is composed of a wireless data transmission module 301, a wireless data receiving module, PC data processing software and the like; the water supply system 40 is composed of a water tank 401, a water pump 402, a water pipe 403, and the like.
The plant protection unmanned aerial vehicle placing transverse frame 202 consists of two fixed square tubes 2021 and two moving square tubes 2022, wherein the fixed square tubes 2021 are parallel to each other and are installed and fixed on the upper table top of the hydraulic lifting platform 201; the two moving square tubes 2022 can move and be fixed on the fixed square tube 2021 through the sliding grooves. Two portable hydraulic lifting platform 201 sets up and place crossbearer 202 both sides at plant protection unmanned aerial vehicle and support it, and plant protection unmanned aerial vehicle installs and places the crossbearer 202 on plant protection unmanned aerial vehicle, and the delivery port of water tank 401 is connected with water pipe 403 one end, water pipe 403 other end and plant protection unmanned aerial vehicle's water inlet intercommunication through water pump 402.
The fog amount distribution scanning system 10 is arranged below the plant protection unmanned aerial vehicle and comprises a power device 101, a walking device 102, a three-section type fog droplet collecting device 103, a controller 104 and a power supply 105. The three-section mist collecting device 103 comprises a middle mist collecting groove 1031, two expansion mist collecting grooves 1032 and a mist collector 1033; the middle mist collecting groove 1031 and the two expansion mist collecting grooves 1032 are respectively provided with 8 transversely arranged notches, the two expansion mist collecting grooves 1032 are fixed at two ends of the middle mist collecting groove 1031 through bolts so that the notches are mutually communicated, the installation angle is more than 15 degrees, so that liquid in the two expansion mist collecting grooves 1032 at two ends can conveniently circulate to the middle mist collecting groove 1031, and the outer side of each expansion mist collecting groove 1032 is provided with a pulley 1038 and a supporting leg 2021 for keeping the installation angle; the middle mist collecting groove 1031 is provided with a liquid leakage hole 1034 below each notch, each corresponding liquid leakage hole 1034 is communicated with a mist collector 1033, and the mist can smoothly enter the mist collector 1033.
The mist collector 1033 is provided with an automatic liquid drainage valve 1035, an upper liquid level detection electrode 1036 and a lower liquid level detection electrode 1037, the automatic liquid drainage valve 1035 is used for opening and closing the mist collector 1033, the upper liquid level detection electrode 1036 and the lower liquid level detection electrode 1037 are used for monitoring the volume of mist droplets stored in the mist collector 1033, the volume between the upper liquid level detection electrode 1037 and the lower liquid level detection electrode 1037 of each mist droplet collector 1033 is equal to be set to be V, the time taken by each mist droplet collector 1033 to collect mist droplets with the volume V is ti (i =1, 2, 3, 4, 5, 6, 7, 8), and the flow rate qi is = V/ti.
The power device 101 comprises a stepping motor 1011, a coupling 1012, a fixing seat 1013, a ball screw 1014 and a nut seat 1015, wherein an output shaft of the stepping motor 1011, the coupling 1012 and the ball screw 1014 are sequentially connected, the ball screw 1014 is provided with the fixing seat 1013 and the nut seat 1015, the fixing seat 1013 is used for mounting and fixing the power device 101, and the nut seat 1015 is connected with the middle mist collecting groove 1031 through a bolt to convert the circular motion of the screw 1014 into the linear motion of the three-stage mist collecting device 103. The walking device 102 is composed of two parallel cylindrical guide rails 1021 and a slide block 1022, and the bottom of the middle mist collecting tank 1031 is connected with the slide block 1022 through a bolt.
The controller 104 is connected with the power device 101, the automatic liquid discharge valve 1035 and the wireless data transmission processing system 30. The controller transmits the acquired data to the wireless data receiving module through the wireless data transmission module 301, and the wireless data receiving module transmits the data to the PC data processing software.
The online detection method for the mist quantity distribution uniformity of the plant protection unmanned aerial vehicle comprises the following steps:
s1: adjusting the distance of the moving square tube 2022 of the plant protection unmanned aerial vehicle placing cross frame 202, placing the plant protection unmanned aerial vehicle on the cross frame, and adjusting the position of the plant protection unmanned aerial vehicle to enable the spray amplitude direction to be parallel to the moving direction of the three-section type fog droplet collecting device 103;
s2: lifting the plant protection unmanned aerial vehicle to a corresponding height by using the movable hydraulic lifting platform 201 according to the detection requirement;
s3: injecting clean water with rated quality into a pesticide box of the plant protection unmanned aerial vehicle by using a water supply system 40;
s4: opening a spraying system of the plant protection unmanned aerial vehicle, and adjusting the spraying system to a corresponding spraying amount;
s5: opening PC data processing software, setting the required operation length of the three-section type fog droplet collecting device 103, controlling a stepping motor 1011 to drive the three-section type fog droplet collecting device 103 to the boundary of spray amplitude fog droplets, clicking to start testing, and simultaneously closing an automatic liquid discharge valve 1035 below each fog droplet collector 1033;
s6: when the liquid level of the mist droplets collected by the 8 mist droplet collectors 1033 all contact the upper liquid level detection electrode 1036, the 8 automatic liquid discharge valves 1035 are opened at the same time, the liquid in the mist droplet collectors 1033 is emptied, then the three-section type mist droplet collecting device 103 is driven by the stepping motor 1011 to advance by 0.8m, and the automatic liquid discharge valves 1035 below the mist droplet collectors 1033 are closed at the same time;
s7: the whole system repeats the step S6, when the three-section type fog droplet collecting device 103 runs to the last position and the liquid discharge valve 1035 is opened, the PC data processing software finishes the test, the spraying system of the plant protection unmanned aerial vehicle is closed, and the hydraulic lifting platform 201 is adjusted to put down the plant protection unmanned aerial vehicle;
s8: and post-processing the test data in PC data processing software, calculating the variation coefficient CV of the mist quantity distribution uniformity of the plant protection unmanned aircraft in the whole spraying amplitude direction, and completing result analysis.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a plant protection unmanned aerial vehicle fog volume distribution uniformity on-line measuring system which characterized in that: the system comprises a fog amount distribution scanning system, a hydraulic lifting system, a wireless data transmission processing system and a water supply system; the hydraulic lifting system is used for supporting the plant protection unmanned aerial vehicle in a hanging mode, the water supply system is communicated with a pesticide box of the plant protection unmanned aerial vehicle, the fog amount distribution scanning system is arranged below the plant protection unmanned aerial vehicle, and the wireless data transmission processing system is connected with a data output port of the fog amount distribution scanning system;
the fog amount distribution scanning system comprises a power device, a walking device, a three-section type fog droplet collecting device and a controller; the three-section type fog droplet collecting device comprises a middle fog collecting groove, expansion fog collecting grooves arranged on two sides of the middle fog collecting groove and a fog droplet collector arranged at the bottom of the middle fog collecting groove, wherein the expansion fog collecting grooves on the two sides are in butt joint communication with the middle fog collecting groove to form an inverted trapezoid, and the middle fog collecting groove is provided with a liquid leakage port communicated with the fog droplet collector; an automatic liquid drainage valve, an upper liquid level detection electrode and a lower liquid level detection electrode are arranged in the fog drop collector, the automatic liquid drainage valve is used for opening and closing the fog drop collector, and the upper liquid level detection electrode and the lower liquid level detection electrode are used for monitoring the fog amount collected in the fog drop collector; the walking device is connected with the bottom of the three-section type fog drop collecting device and is arranged in parallel with the narrower side edge of the three-section type fog drop collecting device, and the power device drives the three-section type fog drop collecting device to move to the other end along one end of the walking device;
the controller is connected with the power device, the automatic liquid discharge valve and the wireless data transmission processing system.
2. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 1, characterized in that: the walking device consists of two cylindrical guide rails and a sliding block which are arranged in parallel, and the sliding block is connected with the bottom of the middle mist collecting groove through a bolt; the power device comprises a stepping motor, a coupler, a fixed seat, a ball screw and a nut seat, wherein an output shaft of the stepping motor, the coupler and the roller screw are sequentially connected; the ball screw is arranged between the two cylindrical guide rails in parallel, a fixing seat and a nut seat are arranged on the ball screw, the fixing seat is used for installing and fixing the power device, and the nut seat is connected with the bottom of the middle mist collecting groove through a bolt.
3. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 2, characterized in that: the middle mist collecting groove and the two expansion mist collecting grooves are provided with 8 transverse notches, liquid leakage holes are formed below each notch of the middle mist collecting groove, and the mist collector is arranged corresponding to each liquid leakage hole.
4. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 1, characterized in that: the installation angle between the expansion mist collecting groove and the middle mist collecting groove is larger than 15 degrees.
5. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 1, characterized in that: the landing leg is installed to extension collection fog groove outer end, and the landing leg bottom is equipped with the pulley.
6. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 3, characterized in that: the hydraulic lifting system comprises a plant protection unmanned aerial vehicle placing cross frame and a movable hydraulic lifting platform supported at two ends of the plant protection unmanned aerial vehicle placing cross frame.
7. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 6, characterized in that: plant protection unmanned aerial vehicle places the crossbearer and manages with two removal side by two fixed side, fixed side manages parallel to each other and the installation is fixed in mesa on the hydraulic lifting platform, two removal side manage and be in through the spout fixed and removal on the fixed side pipe.
8. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 7, characterized in that: the wireless data transmission processing system comprises a wireless data transmission module, a wireless data receiving module and PC data processing software.
9. The plant protection unmanned aerial vehicle fog distribution uniformity on-line detection system of claim 1, characterized in that: the water supply system comprises a water tank, a water pump and a water pipe, wherein a water outlet of the water tank is communicated with a water inlet of the plant protection unmanned aerial vehicle through one end of the water pipe and the other end of the water pipe which are connected with the water pump.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702448A (en) * | 2019-11-12 | 2020-01-17 | 农业农村部南京农业机械化研究所 | Plant protection unmanned aerial vehicle fog distribution uniformity online detection system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702448A (en) * | 2019-11-12 | 2020-01-17 | 农业农村部南京农业机械化研究所 | Plant protection unmanned aerial vehicle fog distribution uniformity online detection system and method |
| CN110702448B (en) * | 2019-11-12 | 2024-04-12 | 农业农村部南京农业机械化研究所 | Online detection system and method for mist distribution uniformity of plant protection unmanned aerial vehicle |
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