Dynamic pesticide spraying device based on remote sensing crop disease and insect pest stress degree identification technology

Abstract

The invention provides a dynamic pesticide spraying device based on a remote sensing crop pest stress degree identification technology, which comprises an unmanned aerial vehicle body, and the bottom end of the unmanned aerial vehicle body is provided with a pesticide liquid packaging assembly; a base is arranged at the bottom end of the liquid medicine containing assembly, and an atomizing nozzle is arranged on the side portion of the base. The atomizing nozzle is communicated with the liquid medicine packaging assembly; a remote sensing acquisition module is arranged on the other side of the base; the remote sensing acquisition module comprises a multispectral sensor, a hyperspectral sensor, a thermal infrared sensor and an NDVI vegetation index camera; the multispectral sensor, the hyperspectral sensor and the thermal infrared sensor are connected with the central processing unit, the NDVI vegetation index camera is connected to the image processing module through the wireless transmission module, and the wireless transmission module is connected with the central processing unit; the central processing unit is connected to the atomizing nozzle; the central processing unit adjusts the flow of the atomization nozzle according to data collected by the remote sensing collection module. The pesticide spraying amount is automatically controlled according to pest and disease damage and growth conditions, and dynamic regulation and control are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide spraying, in particular to a dynamic pesticide spraying device based on remote sensing crop pest and disease stress degree recognition technology. Background Art

[0002] Crops refer to plants grown in farmland or under specific environmental conditions for human food, fiber, oil, medicinal materials or other economic value. Crops may be disturbed by diseases and pests during planting. In order to ensure the normal growth of crops, chemical or biological agents are needed to prevent and control diseases and pests of crops, that is, spraying crops with pesticides.

[0003] Existing spraying devices are generally drones, which spray crops by setting a predetermined spraying flow rate. However, the degree of interference from crop pests and diseases in different locations is different, and there are certain limitations in using a uniform flow rate for pesticide spraying. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a dynamic spraying device based on remote sensing crop pest and disease stress level identification technology, which can solve the existing problems.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows:

[0006] The present invention is realized through the following technical scheme: a dynamic spraying device based on remote sensing crop pest and disease stress degree identification technology comprises an unmanned aerial vehicle body, the bottom end of the unmanned aerial vehicle body is detachably connected to a medicine container assembly through a connecting assembly; a base is fixed to the bottom end of the medicine container assembly, and an atomizing nozzle is arranged on the side of the base; the atomizing nozzle is connected to the medicine container assembly; a sampling assembly is arranged on the other side of the base, and the sampling assembly comprises a remote sensing acquisition module; the remote sensing acquisition module comprises a multispectral sensor, a hyperspectral sensor, a thermal infrared sensor and an NDVI vegetation index camera; the multispectral sensor, the hyperspectral sensor and the thermal infrared sensor are connected to a central processing unit, the NDVI vegetation index camera is connected to an image processing module through a wireless transmission module, and the image processing module is connected to the central processing unit through a wireless transmission module; the central processing unit is connected to the atomizing nozzle; the central processing unit adjusts the flow rate of the atomizing nozzle according to the data collected by the remote sensing acquisition module.

[0007] Furthermore, the central processing unit is also connected to the RS remote sensing module, the Beidou positioning module and the GIS geographic information module.

[0008] Furthermore, the sampling assembly also includes a hydraulic rod, an inner rod, a retaining ring, a folding assembly and a folding plate, the hydraulic rod is fixed to the top of the base, and the inner rod is inserted into and slidably connected to the side of the base; the inner rod and the folding plate are connected through the folding assembly, and the piston rod part of the hydraulic rod is connected to the folding assembly; the hydraulic rod is telescopic to drive the inner rod to telescope in the base and drive the folding plate to flip; a remote sensing acquisition module is fixed to the side of the folding plate; a retaining ring is fixed at the extension of the base, and the inner rod and the piston rod of the hydraulic rod pass through the retaining ring.

[0009] Furthermore, the folding assembly includes a first connecting plate, a first spring, a first connecting piece, a second connecting piece and a second connecting plate; two second connecting plates are fixed to the end of the inner insert rod, and the sides of the two second connecting plates are rotatably connected to the second connecting plates; each of the second connecting plates is rotatably connected to the first connecting plate, and each of the first connecting plates is rotatably connected to the first connecting plate; the first connecting plate and the second connecting plate are rotatably connected, and the first connecting plate and the second connecting plate are connected by a first spring; the side of the second connecting plate is grooved, and the piston rod of the hydraulic rod is rotatably and slidably connected to the groove.

[0010] Furthermore, the connecting assembly includes a nut, a fixing frame, a screw, a support plate and an insert plate; baffles are fixed on both sides of the top surface of the drone body, and the surface of the drone body passes through the screw; the bottom end of the screw passes through a support plate, and the medicine container assembly is placed on the surface of the support plate; the top end of the screw cooperates with the connecting nut; the baffle cooperates with the connecting fixing frame, and the fixing frame cooperates with the connecting bolt; a clamping ring is fixed on the bottom end of the drone body, and an insert plate is fixed on the top end of the medicine container assembly; the insert plate cooperates with the connecting clamping ring.

[0011] Furthermore, the base includes a first cross bar, a connecting rod and a second cross bar; the first cross bar and the second cross bar are fixed to the bottom end of the support plate, and a connecting rod is fixed between the first cross bar and the second cross bar; an inner rod is slidably connected in the connecting rod.

[0012] Furthermore, a fan is installed at the bottom end of the support plate, and air outlets are opened on the sides of the first cross bar and the second cross bar; the fan is connected to the air outlets.

[0013] Furthermore, the medicine container assembly includes a motor, a rotating shaft, a water pump, a stirring rod, a medicine box, a medicine inlet and a sealing cover; the medicine box is rotatably connected to the inside with a rotating shaft, and the bottom end of the rotating shaft is connected to the motor; a stirring rod is fixed to the side of the rotating shaft, and a water pump is installed inside the medicine box; the output end of the water pump is connected to an atomizing nozzle; a medicine inlet is provided at the top of the medicine box; the top of the medicine inlet is threadedly connected to a sealing cover; a plurality of inclined atomizing nozzles are installed at the bottom end of the second cross bar, and a valve is installed in the atomizing nozzle; the valve and the water pump are connected to a central processing unit.

[0014] Furthermore, a support assembly is provided at the bottom end of the base, and the support assembly includes a sponge ring, a shock-absorbing assembly and a landing rod; the shock-absorbing assembly is fixed to the bottom end of the base, and the bottom end of the shock-absorbing assembly is fixed with a landing rod; the outside of the landing rod is covered with a sponge ring.

[0015] Furthermore, the shock-absorbing assembly includes a movable rod, a second spring, a limit plate and an outer cover; movable rods are fixed to the bottom ends of the first cross bar and the second cross bar, and each of the movable rods is inserted into the outer cover; a limit plate is fixed to the side of the movable rod, and the second springs are sleeved on both sides of the movable rod.

[0016] Compared with the prior art, the beneficial effects of the present invention include:

[0017] The dynamic spraying device based on remote sensing crop pest and disease stress level identification technology of the present invention uses remote sensing technology to identify the degree of damage of pests and diseases and the growth status of crops, and automatically controls the amount of pesticide spraying according to the pests and diseases and the growth status, thereby realizing dynamic regulation and control, ensuring that the leaf surface with more pests and diseases obtains more liquid medicine to achieve thorough pest and disease control, and can save liquid medicine for areas with fewer pests and diseases, so as to achieve a more economical and higher level of pest and disease control effect overall;

[0018] The drone body and the medicine container assembly of the present invention can be disassembled, which is convenient for mobile transportation and local maintenance and replacement;

[0019] The remote sensing collection module of the present invention is assembled on the folding plate, which can be rotated and extended when pesticide spraying is needed, and folded and stored when not needed, thereby reducing the occupied area and avoiding collision of the remote sensing assembly module when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0021] Figure 1It is a schematic diagram of the overall structure of the dynamic spraying device based on the remote sensing crop pest and disease stress degree recognition technology of the present invention;

[0022] Figure 2 This is a side structural diagram of the connection between the medicine container assembly and the drone body in the embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the medicine container assembly of the embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a shock absorbing component in an embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a sampling assembly for an implementation case of the present invention;

[0026] Figure 6 This is a system block diagram of an implementation case of the present invention.

[0027] Notes in the figure: 1. UAV body; 11. Baffle; 12. Snap ring; 2. Connecting assembly; 21. Nut; 22. Fixing frame; 221. Bolt; 23. Screw; 24. Support plate; 25. Insert plate; 3. Medicine container assembly; 31. Motor; 32. Rotating shaft; 33. Water pump; 34. Stirring rod; 35. Medicine box; 36. Medicine inlet; 37. Sealing cover; 4. Fan; 5. Atomizing nozzle; 6. Base; 61. First crossbar; 62. Connecting rod; 63. Second crossbar; 64. 31. Air outlet; 7. Sampling assembly; 71. Hydraulic rod; 72. Insert rod; 73. Retaining ring; 74. Folding assembly; 741. First connecting plate; 742. First spring; 743. First connecting piece; 744. Second connecting piece; 745. Second connecting plate; 75. Folding plate; 76. Remote sensing acquisition module; 8. Support assembly; 81. Sponge ring; 82. Shock-absorbing assembly; 821. Movable rod; 822. Second spring; 823. Limiting plate; 824. Outer cover; 83. Landing rod. DETAILED DESCRIPTION

[0028] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0029] Dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology, such as Figure 1As shown, it includes a drone body 1, and the bottom end of the drone body 1 is detachably connected to a medicine container assembly 3 through a connecting assembly 2; the detachable connection between the drone body 1 and the medicine container assembly 3 is convenient for mobile transportation, and is also convenient for local maintenance and replacement; the connecting assembly 2 includes a nut 21, a fixing frame 22, a screw 23, a support plate 24 and a plug plate 25; Figure 1 and Figure 2 As shown, baffles 11 are fixed on both sides of the top surface of the drone body 1, and the baffles 11 are connected to the fixing frame 22; there are two fixing frames 22, and the bottom end of the fixing frame 22 is provided with an opening, and the opening at the bottom end of the fixing frame 22 is connected to the bolt 221; the surface of the drone body 1 passes through the screw rod 23; the bottom end of the screw rod 23 passes through the support plate 24, and the medicine container assembly 3 is placed on the surface of the support plate 24; the top end of the screw rod 23 is connected to the nut 21; the bottom end of the drone body 1 is fixed with a snap ring 12, and the top end of the medicine container assembly 3 is fixed with a plug plate 25; the plug plate 25 is connected to the snap ring 12.

[0030] When installing the medicine container assembly 3 at the bottom end of the drone body 1, place the medicine container assembly 3 on the surface of the support plate 24, and then align the plug plate 25 with the clamping ring 12 from the side and insert it to achieve the initial connection between the medicine container assembly 3 and the drone body 1; then pass the screw 23 through the support plate 24 and the drone body 1, and lock it with the nut 21; finally, put the fixing frame 22 between the drone body 1 and the support plate 24, and lock it with the bolt 221, and triple fix it to complete the fixed connection between the drone body 1 and the medicine container assembly 3.

[0031] A base 6 is fixed to the bottom end of the medicine container assembly 3, and an atomizing nozzle 5 is provided on the side of the base 6; the atomizing nozzle 5 is connected to the medicine container assembly 3; a sampling assembly 7 is provided on the other side of the base 6, wherein the sampling assembly 7 is provided with one or more groups; the sampling assembly 7 includes a remote sensing acquisition module 76; the remote sensing acquisition module 76 includes a multispectral sensor, a hyperspectral sensor, a thermal infrared sensor and an NDVI vegetation index camera; the multispectral sensor, the hyperspectral sensor and the thermal infrared sensor are connected to a central processing unit, the NDVI vegetation index camera is connected to a wireless transmission module, and the wireless transmission module is connected to an image processing module, and the image processing module is connected to a central processing unit via the wireless transmission module; the image processing module mainly performs operations including but not limited to the following: receiving data from the NDVI vegetation index camera The original image data includes data from near-infrared and visible light bands; color correction is performed on red and near-infrared data to ensure that the data from each band is converted accurately; the data from the two bands are merged into one image to form an NDVI image, and the NDVI value of each pixel is calculated through an algorithm; the difference between vegetation and non-vegetation areas is made more obvious by adjusting parameters such as image contrast and brightness; filtering algorithms (such as median filtering and Gaussian filtering) are applied to reduce image noise and enhance details; threshold or machine learning techniques are used to automatically identify and separate vegetation areas (areas with higher NDVI values) and non-vegetation areas; NDVI images are merged with geographic information, such as superimposed on satellite images, to provide richer geographic background information; statistical indicators (such as average values, trend analysis, etc.) are calculated to evaluate vegetation growth conditions, change trends, and health status. After the image processing module processes and evaluates the image, the evaluated conditions are transmitted to the central processor through the wireless transmission module;

[0032] The central processor is connected to the atomizing nozzle 5; the central processor adjusts the flow rate of the atomizing nozzle 5 according to the data collected by the remote sensing acquisition module 76. Figure 6As shown, the central processor is also connected to the wireless transmission module, RS remote sensing module, Beidou positioning module and GIS geographic information module; the central processor can also transmit various data through the wireless transmission module for remote viewing. Among them, the RS remote sensing module (Remote Sensing Module) is a technology for drones to collect ground information from the air; it includes sensors such as visible light, infrared, radar, etc., which are used to obtain electromagnetic wave data of the surface and atmosphere. These data can be used for various applications, such as vegetation monitoring, land use change analysis, climate change research, etc. The key components of the RS remote sensing module may include data acquisition equipment, image processing software, etc. The Beidou positioning module is a device that uses the BeiDou Navigation Satellite System (BDS) to obtain location, time, speed and other related information. By receiving signals from at least four or more Beidou navigation satellites, the receiver's precise latitude and longitude, altitude and time information are calculated, with an accuracy of centimeters to meters, or even higher (depending on the receiving device and algorithm). GIS geographic information module (Geographic Information System Module): is a technology for collecting, managing, analyzing and displaying geographic spatial information. It integrates multiple sources such as map data, remote sensing data, GPS data, etc., and can perform spatial analysis, query, mapping and other operations through various geographic information system software. The GIS geographic information module usually includes a geographic database, a graphical user interface, data processing tools and a data analysis module to support decision support systems and geographic decision analysis. The wireless transmission module, central processing unit, RS remote sensing module, Beidou positioning module and GIS geographic information module are all installed on the drone body 1.

[0033] The multispectral sensors in the present invention, such as near infrared, red, green, blue and ultraviolet spectra, can detect crop growth, health and pest symptoms, and evaluate crop needs and problems by comparing spectra of different bands; Hyperspectral sensors: provide richer spectral information, can more finely identify crop varieties, nutritional status and pest types, and provide a basis for precise spraying. Thermal infrared sensors: used for observation at night or on cloudy days, can detect temperature differences in crops, and help identify growth stages and pest hotspots.

[0034] The remote sensing acquisition module 76 is used to collect the status of crop diseases and insect pests. The remote sensing acquisition module 76 is in a relative position to the atomizing nozzle 5. When the UAV is flying, the remote sensing acquisition module 76 is at the front end to collect relevant information of crop diseases and insect pests. According to this information, the central processing module controls the spraying module to adjust the spraying flow rate of the spraying module according to the status of the diseases and insect pests. In order to fold and retract the remote sensing acquisition module 76 when not in use, the sampling component 7 also includes a hydraulic rod 71, an inner rod 72, a retaining ring 73, a folding component 74 and a folding plate 75. Figure 1 and Figure 5 As shown, the hydraulic rod 71 is fixed to the top of the base 6, and the side of the base 6 is inserted and slidably connected with an inner rod 72; the inner rod 72 is connected to the folding plate 75 through a folding assembly 74, and the piston rod part of the hydraulic rod 71 is connected to the folding assembly 74; the hydraulic rod 71 is telescopic to drive the inner rod 72 to telescope in the base 6 and drive the folding plate 75 to flip; a remote sensing acquisition module 76 is fixed to the side of the folding plate 75; a retaining ring 73 is fixed at the extension of the base 6, and the inner rod 72 and the piston rod of the hydraulic rod 71 pass through the retaining ring 73. The folding assembly 74 includes a first connecting plate 741, a first spring 742, a first connecting piece 743, a second connecting piece 744 and a second connecting plate 745; two second connecting plates 745 are fixed to the end of the inner rod 72, and the sides of the two second connecting plates 745 are rotatably connected to the second connecting pieces 744; each of the second connecting pieces 744 is rotatably connected to the first connecting piece 743, and each of the first connecting pieces 743 is rotatably connected to the first connecting plate 741; the first connecting plate 741 and the second connecting plate 745 are rotatably connected, and the first connecting plate 741 and the second connecting plate 745 are connected by the first spring 742; the side of the second connecting piece 744 is grooved, and the piston rod of the hydraulic rod 71 is rotatably and slidably connected to the groove.

[0035] When the remote sensing acquisition module 76 is not in use, even if the folding plate 75 is rotated and retracted, specifically by retracting the hydraulic rod 71, the inner rod 72 is driven to move to the right (such as Figure 5 When the locking cam 73 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 73 is locked. When the locking cam 73 is locked, the locking cam 73 is unlocked, and the locking cam 73 is locked.

[0036] When the remote sensing acquisition module 76 is needed, the folding plate 75 is rotated and extended, and the hydraulic rod 71 is started. The inner rod 72 and the folding plate 75 are moved to the left at the same time through the hydraulic rod 71. After the folding plate 75 moves to the initial position, the hydraulic rod 71 continues to move to the left to push the second connecting piece 744, so that the second connecting piece 744 rotates, and drives the first connecting piece 743 to rotate, which can push the folding plate 75 to rotate and open, and the folding plate 75 can be used.

[0037] The base 6 includes a first cross bar 61, a connecting rod 62 and a second cross bar 63; the first cross bar 61 and the second cross bar 63 are fixed to the bottom end of the support plate 24, and the connecting rod 62 is fixed between the first cross bar 61 and the second cross bar 63; an inner rod 72 is slidably connected inside the connecting rod 62.

[0038] In order to ensure that the pesticide is sprayed more evenly and comprehensively, a fan 4 is installed at the bottom end of the support plate 24, and air outlets 631 are opened on the sides of the first cross bar 61 and the second cross bar 63; the fan 4 is connected to the air outlet 631; the air outlet 631 is inclined downward, and the wind from the air outlet 631 can make the crops tilt to one side, so as to facilitate more comprehensive spraying of the pesticide.

[0039] The medicine container assembly 3 includes a motor 31, a rotating shaft 32, a water pump 33, a stirring rod 34, a medicine box 35, a medicine inlet 36 and a sealing cover 37. Figure 3 As shown, the medicine box 35 is internally rotatably connected with a rotating shaft 32, and the bottom end of the rotating shaft 32 is connected to a motor 31; the motor 31 is located outside the bottom of the medicine box 35, and a groove for accommodating the motor 31 is provided on the support plate 24, a stirring rod 34 is fixed to the side of the rotating shaft 32, and a water pump 33 is installed inside the medicine box 35; the output end of the water pump 33 is connected to an atomizing nozzle 5; a medicine inlet 36 is provided at the top of the medicine box 35; the top of the medicine inlet 36 is threadedly connected to a sealing cover 37; a plurality of inclined atomizing nozzles 5 are installed at the bottom end of the second cross bar 63, and a valve is installed in the atomizing nozzle 5; the valve and the water pump 33 are connected to a central processing unit; the spraying flow of the pesticide can be controlled by the valve and the water pump 33, and the stirring rod 34 adopts a coil structure, and the stirring rod 34 is used to stir the pesticide to make it mix evenly.

[0040] The bottom end of the base 6 is provided with a support assembly 8, and the support assembly 8 includes a sponge ring 81, a shock absorbing assembly 82 and a landing rod 83; the shock absorbing assembly 82 is fixed to the bottom end of the base 6, and the landing rod 83 is fixed to the bottom end of the shock absorbing assembly 82; the outside of the landing rod is covered with a sponge ring 81. The shock absorbing assembly 82 includes a movable rod 821, a second spring 822, a limit plate 823 and an outer cover 824; the bottom ends of the first cross bar 61 and the second cross bar 63 are both fixed with movable rods 821, and each of the movable rods 821 is inserted into the outer cover 824; the side of the movable rod 821 is fixed with a limit plate 823, and the two sides of the movable rod 821 are sleeved with second springs 822. The support assembly 8 is used to buffer the vibration of the drone during take-off and landing.

[0041] When the present invention is used, firstly, the medicine is placed in the medicine box 35 and stirred evenly; then, the medicine container assembly 3 is installed with the drone body 1, and the medicine container assembly 3 is placed on the surface of the support plate 24, and then the plug plate 25 is aligned with the clamp ring 12 from the side and inserted to realize the preliminary connection between the medicine container assembly 3 and the drone body 1; then, the screw rod 23 is passed through the support plate 24 and the drone body 1, and is locked by the nut 21; finally, the fixing frame 22 is put between the drone body 1 and the support plate 24, and is locked by the bolt 221; then, the remote sensing acquisition module 76 is extended to be in the working state, and the hydraulic rod 71 is started, and the inner plug rod 72 and the folding plate 75 are simultaneously connected by the hydraulic rod 71. When the folding plate 75 moves to the initial position, the hydraulic rod 71 continues to move to the left to push the second connecting piece 744, so that the second connecting piece 744 rotates, and drives the first connecting piece 743 to rotate, so as to push the folding plate 75 to rotate and open, and then the folding plate 75 can be extended to put the remote sensing acquisition module 76 in use state, start the UAV to reach the area where pesticides need to be sprayed, use multi-spectral sensors, hyperspectral sensors, thermal infrared sensors and NDVI vegetation index cameras to identify the status of crop diseases and insect pests, and control the spraying module (water pump 33 and atomizing nozzle 5) through the central processor according to the identified status to spray pesticides with a suitable flow rate, so as to realize dynamic regulation based on diseases and insect pests.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0045] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology, characterized by: The invention comprises an unmanned aerial vehicle (UAV) body (1), the bottom end of which is detachably connected to a medicine container assembly (3) via a connecting assembly (2); a base (6) is fixed to the bottom end of the medicine container assembly (3), and a side portion of the base (6) is provided with an atomizing nozzle (5); the atomizing nozzle (5) is connected to the medicine container assembly (3); a sampling assembly (7) is provided on the other side of the base (6), and the sampling assembly (7) comprises a remote sensing acquisition module (76); the remote sensing acquisition module (76) comprises a multispectral sensor, a hyperspectral sensor, a thermal infrared sensor and an NDVI vegetation index camera; the multispectral sensor, the hyperspectral sensor and the thermal infrared sensor are connected to a central processing unit, the NDVI vegetation index camera is connected to an image processing module via a wireless transmission module, and the image processing module is connected to the central processing unit via a wireless transmission module; the central processing unit is connected to the atomizing nozzle (5); and the central processing unit adjusts the flow rate of the atomizing nozzle (5) according to the data collected by the remote sensing acquisition module (76).

2. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 1 is characterized in that: The central processing unit is also connected to the RS remote sensing module, the Beidou positioning module and the GIS geographic information module.

3. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 1 is characterized in that: The sampling assembly (7) further comprises a hydraulic rod (71), an inner rod (72), a retaining ring (73), a folding assembly (74) and a folding plate (75), wherein the hydraulic rod (71) is fixed to the top end of the base (6), and the inner rod (72) is inserted into and slidably connected to the side of the base (6); the inner rod (72) and the folding plate (75) are connected via the folding assembly (74), and the piston rod portion of the hydraulic rod (71) is connected to the folding assembly (74); the hydraulic rod (71) is telescopic to drive the inner rod (72) to telescope in the base (6) and drive the folding plate (75) to flip; a remote sensing acquisition module (76) is fixed to the side of the folding plate (75); a retaining ring (73) is fixed to the extension of the base (6), and the inner rod (72) and the piston rod of the hydraulic rod (71) penetrate the retaining ring (73).

4. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 3 is characterized by: The folding assembly (74) includes a first connecting plate (741), a first spring (742), a first connecting piece (743), a second connecting piece (744) and a second connecting plate (745); two second connecting plates (745) are fixed to the end of the inner rod (72), and the sides of the two second connecting plates (745) are rotatably connected to the second connecting plates (744); each of the second connecting plates (744) is rotatably connected to the first connecting plate (743), and each of the first connecting plates (743) is rotatably connected to the first connecting plate (741); the first connecting plate (741) and the second connecting plate (745) are rotatably connected, and the first connecting plate (741) and the second connecting plate (745) are connected by the first spring (742); the side of the second connecting plate (744) is grooved, and the piston rod of the hydraulic rod (71) is rotatably and slidably connected to the groove.

5. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 4 is characterized in that: The connecting assembly (2) comprises a nut (21), a fixing frame (22), a screw (23), a support plate (24) and an insert plate (25); baffles (11) are fixed on both sides of the top surface of the drone body (1), and the surface of the drone body (1) passes through the screw (23); the bottom end of the screw (23) passes through the support plate (24), and the medicine container assembly (3) is placed on the surface of the support plate (24); the top end of the screw (23) cooperates with the connecting nut (21); the baffle (11) cooperates with the connecting frame (22), and the fixing frame (22) cooperates with the connecting bolt (221); the bottom end of the drone body (1) is fixed with a snap ring (12), and the top end of the medicine container assembly (3) is fixed with an insert plate (25); the insert plate (25) cooperates with the connecting snap ring (12).

6. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 5 is characterized by: The base (6) comprises a first cross bar (61), a connecting rod (62) and a second cross bar (63); the first cross bar (61) and the second cross bar (63) are fixed to the bottom end of the support plate (24), and a connecting rod (62) is fixed between the first cross bar (61) and the second cross bar (63); an inner rod (72) is slidably connected inside the connecting rod (62).

7. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 6 is characterized by: A fan (4) is installed at the bottom end of the support plate (24), and air outlets (631) are provided on the sides of the first crossbar (61) and the second crossbar (63); the fan (4) is connected to the air outlet (631).

8. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 7 is characterized by: The medicine liquid container assembly (3) comprises a motor (31), a rotating shaft (32), a water pump (33), a stirring rod (34), a medicine box (35), a medicine inlet (36) and a sealing cover (37); the medicine box (35) is rotatably connected to the rotating shaft (32) inside, and the bottom end of the rotating shaft (32) is connected to the motor (31); the stirring rod (34) is fixed to the side of the rotating shaft (32), and the water pump (33) is installed inside the medicine box (35); the output end of the water pump (33) is connected to the atomizing nozzle (5); the top of the medicine box (35) is provided with a medicine inlet (36); the top of the medicine inlet (36) is threadedly connected to the sealing cover (37); a plurality of inclined atomizing nozzles (5) are installed at the bottom end of the second cross bar (63), and a valve is installed inside the atomizing nozzle (5); the valve and the water pump (33) are connected to a central processing unit.

9. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 6 is characterized by: A support assembly (8) is provided at the bottom end of the base (6), and the support assembly (8) comprises a sponge ring (81), a shock absorbing assembly (82) and a landing rod (83); the shock absorbing assembly (82) is fixed to the bottom end of the base (6), and the landing rod (83) is fixed to the bottom end of the shock absorbing assembly (82); the outside of the landing rod (83) is covered with a sponge ring (81).

10. The dynamic spraying device based on remote sensing crop pest and disease stress level recognition technology according to claim 9, characterized in that: The shock absorbing assembly (82) comprises a movable rod (821), a second spring (822), a limit plate (823) and an outer cover (824); the bottom ends of the first cross bar (61) and the second cross bar (63) are both fixed with a movable rod (821), and each movable rod (821) is inserted into the outer cover (824); the side of the movable rod (821) is fixed with a limit plate (823), and the two sides of the movable rod (821) are sleeved with the second spring (822).

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