Satellite positioning intelligent control non-equidistant seeding system

Abstract

The embodiment of the invention relates to the technical field of agricultural seeding, and particularly provides a satellite positioning intelligent control unequal-distance seeding system which comprises an unmanned aerial vehicle and a remote control module, and the unmanned aerial vehicle is used for performing seed fixed-point throwing under positioning of a satellite positioning system; the remote control module is used for a worker to remotely control the seeding module within a certain range; the unmanned aerial vehicle comprises a satellite navigation module used for a satellite positioning system to obtain the position of a seeding module; the communication module is used for communicating with a satellite positioning system and a remote control module; the path planning module is used for presetting a flight path of the unmanned aerial vehicle and a sowing point location; the flight control module is used for controlling the flight attitude, height, speed and other parameters of the unmanned aerial vehicle, and the seeding module is used for fixed-point seeding. According to the seeding device, seeds can be launched without damaging seed coatings, so that unequal-distance fixed-point seeding of the seeds is realized, meanwhile, the risk of seed coating fragmentation can be reduced, and the seeding effect is improved.

Description

Technical Field

[0001] One or more embodiments of the present specification relate to the field of agricultural sowing technology, and in particular, to an unequal-distance sowing system with satellite positioning intelligent control. Background Art

[0002] Agriculture is an important cornerstone for ensuring food security. my country is a major agricultural country. In recent years, with the continuous development of industrial technology, agricultural sowing methods have gradually become mechanized and intelligent. Using satellite positioning to plan the sowing path according to the terrain and realize intelligent sowing can improve the sowing effect and save labor.

[0003] In some mountainous and hilly areas, plots with uneven soil fertility, and when different crops are mixed, the sowing spacing needs to be adjusted according to the actual situation, that is, unequal sowing. The Chinese invention patent with application number 2020116152368 discloses a friction wheel material acceleration device with adaptive spacing adjustment. By installing two friction wheels on both sides of the acceleration tube, the friction wheels are connected by springs. While maintaining the friction between the seeds, it can adapt to seeds of different sizes.

[0004] However, the applicant has found that the prior art has at least the following problems: The comparative document can only accelerate the falling of seeds, thereby reducing the impact of wind. It cannot be achieved when unequal sowing is required. In addition, the friction wheel exerts different pressures on seeds of different diameters. For seeds with larger diameters, their coatings are easily squeezed and ruptured, resulting in a low sowing survival rate. Summary of the invention

[0005] In view of this, the purpose of one or more embodiments of this specification is to propose an unequal distance sowing system with satellite positioning intelligent control to solve the problem of intelligent sowing and improve the sowing survival rate.

[0006] Based on the above purpose, one or more embodiments of this specification provide a satellite positioning intelligently controlled unequal distance seeding system, including: a drone and a remote control module, the drone is used to perform fixed-point seed delivery under the positioning of a satellite positioning system, and the remote control module is used for staff to remotely control the seeding module within a certain range; Drones include: Satellite navigation module, used for satellite positioning system to obtain the location of seeding module; Inertial navigation module, used to maintain positioning and attitude stability by relying on the acceleration and angular velocity information provided by the inertial measurement unit when the satellite signal is interfered with or temporarily lost; A communication module, used for communicating with a satellite positioning system and a remote control module; Path planning module, used to preset the flight path of the drone and the seeding points; Flight control module, used to control the flight attitude, altitude, speed and other parameters of the drone; The sowing module is used for the fixed-point delivery of seeds, comprising: a machine body, a storage cavity is provided on the machine body, a top cover is provided on the top of the storage cavity, a support frame and a spiral frame are also installed around the machine body, a feeding pipe is connected to the bottom of the machine body, the feeding pipe is connected to a dividing assembly for classifying seeds, a plurality of launching assemblies are connected below the dividing assembly, the launching assembly comprises a launching tube, mounting openings are provided on both sides of the launching tube, friction wheels are installed in the mounting openings, the friction wheels are connected to a rotating shaft, the rotating shaft is connected to a swing arm, the swing arm is connected to a connecting sleeve, the connecting sleeve is connected to a driving shaft, the driving shaft is connected to a mounting plate, the mounting plate is fixedly installed on the launching tube, and the swing arm is also connected to a pneumatic assembly for keeping the extrusion pressure between the two sets of friction wheels and the seeds in an appropriate range.

[0007] Optionally, the pneumatic assembly includes an air pressure box fixedly mounted on the launch tube, two groups of arc-shaped air cylinders are connected to the bottom of the air pressure box, an arc-shaped piston cavity is opened in the arc-shaped air cylinder, a piston arc plate is adapted to be installed in the piston cavity, the piston arc plate is connected to a swing arm, and the two groups of swing arms are arranged in parallel in an initial state, the air pressure box is connected to an air pressure pump, and the air pressure pump is connected to an air pressure setting unit, which is used to set the initial air pressure of the air pressure box according to the seed coating diameter and the seed coating tolerance pressure.

[0008] Optionally, the air pressure setting unit, used to set the initial air pressure of the air pressure box according to the seed diameter, comprises: Used to read the seed coating diameter and the tolerable pressure of the seed coating; Calculate the swing angle of the swing arm according to the seed diameter; Calculate the squeezed volume of the piston chamber according to the swing angle of the swing arm; The pressure on the end face of the piston arc plate is calculated based on the tolerable pressure of the seed coating; According to the pressure on the end surface of the piston arc plate and the area of ​​the top surface of the piston arc plate, the critical pressure of the air pressure box after the piston cavity is squeezed is calculated; The initial air pressure of the air pressure box is calculated based on the critical pressure after the piston chamber is squeezed and the volume of the piston chamber squeezed.

[0009] Optionally, the material dividing component includes a material dividing ring, a material dividing bin is opened in the material dividing ring, a plurality of material dividing ports are arranged on the bottom surface of the material dividing bin, a feeding port is connected to the bottom of the material dividing port, an outlet is opened on the side wall of the feeding port, a hose is connected to the outlet, the hose is arc-shaped, and the hose is connected to a launching tube, a movable plate which can move up and down is arranged in the feeding port, the movable plate is used to control the distance between the movable plate and the material dividing port, so that the feeding port between the material dividing port and the movable plate can only accommodate one seed, the material dividing component is also connected to a flight control module, which is used to control the UAV to shake the fuselage, and drive the seeds to move along the material dividing bin and fall into the feeding port under the action of gravity.

[0010] Optionally, a push rod is connected to the bottom of the movable plate, a push tube is sleeved on the outside of the push rod, the push tube is integrally formed with the air pressure box, a return spring is connected between the push rod and the inside of the air pressure box, and the air pressure setting unit is used to control the internal air pressure of the air pressure box, thereby adjusting the position of the movable plate in the feed port.

[0011] Optionally, the air pressure setting unit is used to control the air pressure box to classify and load the mixed seeds, including: According to the diameter of a certain type of seeds and the launching tube, the air pressure of the air pressure box is controlled, the position of the movable plate in the feed port connected to the launching tube is adjusted, and other launching tubes are closed; Adjust the position of the movable plate in the feeding port to allow the seeds to enter the launching tube; Drive the movable plate in the feeding port to close the material distribution port; Repeat the above steps to classify and load other types of seeds.

[0012] Optionally, limiting protrusions are provided on both sides of the feed opening, and the limiting protrusions are used to limit the stacking of seeds in the feed opening.

[0013] Optionally, the bottom of the body is connected to a main body bracket, the main body bracket is connected to multiple groups of rotating joints, the ends of the rotating joints are connected to rotating sleeves, a rotating shaft is provided inside the rotating sleeve, both ends of the rotating shaft are connected to fixed seats, the fixed seats are fixedly connected to the launch tube, and the rotating shaft is also powered by a rotating motor.

[0014] Optionally, a friction airbag is provided on the outer periphery of the friction wheel.

[0015] Optionally, a shut-off valve is provided in the feed pipe, and the shut-off valve is electrically connected to a gravimeter, which is installed in the storage cavity and is used to monitor changes in seed weight in the storage cavity.

[0016] From the above description, it can be seen that a satellite positioning intelligently controlled unequal-distance sowing system provided in multiple embodiments of the present specification works by a drone under the positioning of a satellite positioning system, plans the flight path of the drone through a path planning module, and plans the sowing points in advance. When the drone arrives at the designated point, the sowing module sows the seeds, and the seeds are stored in a storage cavity. When different seeds are sown separately, their coating diameters are different. By changing the initial air pressure of the pneumatic component, the extrusion force between the two sets of friction wheels and the seeds can be controlled, so that the extrusion force between the seeds and the friction wheels is at an appropriate size, which can both launch the seeds and not damage the seed coating, thereby realizing unequal-distance fixed-point sowing of seeds, and at the same time reducing the risk of seed coating breakage, thereby improving the sowing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate one or more embodiments of the present specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a module schematic diagram of a satellite positioning intelligently controlled unequal-distance seeding system according to one or more embodiments of this specification; Figure 2 This is a schematic diagram of the structure of a satellite positioning intelligently controlled unequal-distance seeding system according to one or more embodiments of this specification; Figure 3 This is a schematic diagram of the structure of a satellite positioning intelligently controlled unequal distance seeding system in one or more embodiments of this specification. Figure 1 ; Figure 4 An exploded schematic diagram of a satellite-positioned intelligently controlled unequal-distance seeding system according to one or more embodiments of this specification; Figure 5 This is a partial schematic diagram of a satellite positioning intelligently controlled unequal distance seeding system according to one or more embodiments of this specification. Figure 1 ; Figure 6 This is a partial schematic diagram of a satellite positioning intelligently controlled unequal distance seeding system according to one or more embodiments of this specification. Figure 2 ; Figure 7 A schematic diagram of a transmitting device of a satellite positioning intelligently controlled unequal distance seeding system according to one or more embodiments of the present specification Figure 1 ; Figure 8A schematic diagram of a transmitting device of a satellite positioning intelligently controlled unequal distance seeding system according to one or more embodiments of the present specification Figure 2 ; Fig. 9 A schematic diagram of a transmitting device of a satellite positioning intelligently controlled unequal distance seeding system according to one or more embodiments of the present specification Figure 3 ; Fig.10 This is a schematic diagram of the working status of a launch device of a satellite positioning intelligently controlled unequal-distance seeding system according to one or more embodiments of this specification.

[0019] in: 101. Machine body; 102. Top cover; 103. Support frame; 104. Screw frame; 105. Storage chamber; 106. Feeding pipe; 107. Main frame; 201. Distributing ring; 202. Distributing bin; 203. Distributing port; 204. Limiting protrusion; 301. Launching assembly; 302. Feeding port; 303. Hose; 304. Launching tube; 305. Connecting sleeve; 306. Mounting plate; 307. Driving shaft; 308. Swing arm; 309. Friction wheel; 310. Piston arc plate; 311. Arc cylinder; 312. Piston chamber; 313. Air pressure box; 314. Rotating shaft; 315. Push rod; 316. Movable plate; 317. Fixed seat; 318. Rotating shaft; 319. Rotating sleeve; 320. Rotating joint. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should be understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] One or more embodiments of this specification provide a satellite positioning intelligent control unequal distance seeding system, such as Figures 1 to 10As shown, it includes a drone and a remote control module. The drone is used to place seeds at a fixed point under the positioning of a satellite positioning system, and the remote control module is used by staff to remotely control the sowing module within a certain range; Drones include: Satellite navigation module, used for satellite positioning system to obtain the location of seeding module; Inertial navigation module, used to maintain positioning and attitude stability by relying on the acceleration and angular velocity information provided by the inertial measurement unit when the satellite signal is interfered with or temporarily lost; A communication module, used for communicating with a satellite positioning system and a remote control module; Path planning module, used to preset the flight path of the drone and the seeding points; Flight control module, used to control the flight attitude, altitude, speed and other parameters of the drone; The sowing module is used for fixed-point delivery of seeds, including: a body 101, a storage chamber 105 is opened on the body 101, a top cover 102 is arranged on the top of the storage chamber 105, a support frame 103 and a spiral frame 104 are also installed on the side of the body 101, a feeding pipe 106 is connected to the bottom of the body 101, and a material distribution component for classifying seeds is connected to the feeding pipe 106, and a plurality of launching components 301 are connected below the material distribution component, and the launching component 301 includes a launching tube 304, and the launching tube Installation openings are provided on both sides of 304, and friction wheels 309 are installed in the installation openings. The friction wheels 309 are connected to the rotating shaft 314, the rotating shaft 314 is connected to the swing arm 308, the swing arm 308 is connected to the connecting sleeve 305, the connecting sleeve 305 is connected to the driving shaft 307, the driving shaft 307 is connected to the mounting plate 306, the mounting plate 306 is fixedly installed on the launching tube 304, and the swing arm 308 is also connected to the air pressure component for keeping the extrusion pressure between the two sets of friction wheels 309 and the seeds in an appropriate range.

[0023] When sowing seeds, the drone works under the positioning of the satellite positioning system, and the flight path of the drone is planned by the path planning module, and the sowing points are planned in advance. When the drone arrives at the designated point, the sowing module sows seeds, and the seeds are stored in the storage chamber 105. When different seeds are sown separately, their coating diameters are different. By changing the initial air pressure of the pneumatic component, the extrusion force between the two sets of friction wheels 309 and the seeds can be controlled, so that the extrusion force between the seeds and the friction wheels 309 is at an appropriate size, which can both launch the seeds and not damage the seed coating, thereby realizing unequally spaced fixed-point sowing of seeds, and at the same time reducing the risk of seed coating breakage, thereby improving the sowing effect.

[0024] In some optional specific embodiments, such as Figures 7 to 10As shown, the pneumatic assembly includes an air pressure box 313 fixedly mounted on the launch tube 304, two groups of arc-shaped air cylinders 311 are connected to the bottom of the air pressure box 313, an arc-shaped piston chamber 312 is opened in the arc-shaped air cylinder 311, a piston arc plate 310 is adapted to be installed in the piston chamber 312, the piston arc plate 310 is connected to the swing arm 308, the two groups of swing arms 308 are arranged in parallel in the initial state, the air pressure box 313 is connected to an air pressure pump, and the air pressure pump is connected to an air pressure setting unit for setting the initial air pressure of the air pressure box 313 according to the seed coating diameter and the seed coating tolerance pressure.

[0025] In some optional specific embodiments, the air pressure setting unit, for setting the initial air pressure of the air pressure box 313 according to the seed diameter, comprises: Used to read the seed coating diameter and the tolerable pressure of the seed coating; Calculate the swing angle of the swing arm 308 according to the seed diameter; The squeezed volume of the piston chamber 312 is calculated according to the swing angle of the swing arm 308; The pressure on the end surface of the piston arc plate 310 is calculated according to the tolerable pressure of the seed coating; According to the pressure on the end surface of the piston arc plate 310 and the area of ​​the top surface of the piston arc plate 310, the critical pressure of the air pressure box 313 after the piston cavity 312 is squeezed is calculated; The initial air pressure of the air pressure box 313 is calculated according to the critical pressure after the piston chamber 312 is squeezed and the squeezed volume of the piston chamber 312 .

[0026] When launching seeds, the diameter of the seed coating and the pressure resistance of the seed coating are input, and the air pressure setting unit can automatically set the initial pressure in the air pressure box 313, so that the seed coating can be launched with maximum friction while reducing the risk of seed coating breaking.

[0027] In some optional specific embodiments, such as Figures 4 to 10As shown, the material distribution component includes a material distribution ring 201, a material distribution bin 202 is opened in the material distribution ring 201, and a plurality of material distribution ports 203 are arranged on the bottom surface of the material distribution bin 202. The bottom of the material distribution port 203 is connected to a feed port 302, and an outlet is opened on the side wall of the feed port 302. The outlet is connected to a hose 303, and the hose 303 is arc-shaped. The hose 303 is connected to a launch tube 304. A movable plate 316 that can move up and down is provided in the feed port 302. The movable plate 316 is used to control the distance between the movable plate 316 and the material distribution port 203, so that the feed port 302 between the material distribution port 203 and the movable plate 316 can only accommodate one seed. The material distribution component is also connected to a flight control module, which is used to control the drone to shake the fuselage, and drive the seeds to move along the material distribution bin 202 under the action of gravity and fall into the feed port 302. When in use, a certain amount of seeds are contained in the dividing ring 201, and the seeds are not piled up. When dividing the materials, the flight control module is used to control the drone to shake the fuselage. The seeds roll along the annular dividing bin 202 under the action of gravity, and enter the feed port 302 during the rolling process. Since the movable plate 316 makes it possible for only one seed to be contained in the feed port 302 between the dividing port 203 and the movable plate 316, after the seeds are filled in the dividing port 203, other seeds will roll over it until all the feed ports 302 are filled, and then the movable plate 316 moves downward, and the seeds enter the hose 303 from the outlet and finally enter the launch tube 304.

[0028] In some optional specific embodiments, such as Figures 6 to 10 As shown, the bottom of the movable plate 316 is connected to a push rod 315, the outside of the push rod 315 is provided with a push tube, the push tube and the air pressure box 313 are integrally formed, and a return spring is connected between the push rod 315 and the inside of the air pressure box 313, and the air pressure setting unit is used to control the internal air pressure of the air pressure box 313, thereby adjusting the position of the movable plate 316 in the feed port 302.

[0029] In some optional specific embodiments, the air pressure setting unit is used to control the air pressure box 313 to classify and load the mixed seeds, including: According to the diameter of a certain type of seeds and the launching tube 304, the air pressure of the air pressure box 313 is controlled, the position of the movable plate 316 in the feed port 302 connected to the launching tube 304 is adjusted, and other launching tubes 304 are closed; Adjust the position of the movable plate 316 in the loaded feed port 302 to allow the seeds to enter the launch tube 304; The movable plate 316 in the material feeding port 302 is driven to close the material distributing port 203; Repeat the above steps to classify and load other types of seeds.

[0030] When sowing at unequal intervals, mixed seeds often occur. At this time, the air pressure of the air pressure box 313 corresponding to the launching tube 304 is changed in turn through the air pressure setting unit to control the closing and opening of the feed port 203, so that different types of seeds are loaded into different launching tubes 304, thereby improving the accuracy of mixed seeds and improving the sowing effect.

[0031] In some optional specific embodiments, such as Figure 5 As shown, limiting protrusions 204 are provided on both sides of the feed opening 203 , and the limiting protrusions 204 are used to limit the stacking of seeds in the feed opening 302 .

[0032] In some optional specific embodiments, such as Figures 2 to 8 As shown, the bottom of the body 101 is connected to a main frame 107, the main frame 107 is connected to multiple sets of rotating joints 320, the ends of the rotating joints 320 are connected to rotating sleeves 319, the rotating sleeves 319 are sleeved with rotating shafts 318, the two ends of the rotating shafts 318 are connected to fixed seats 317, the fixed seats 317 are fixedly connected to the launch tube 304, and the rotating shafts 318 are also powered by a rotating motor to control the launch direction of the launch tube 304.

[0033] In some optional specific embodiments, such as Figures 2 to 10 As shown, the outer periphery of the friction wheel 309 is provided with a friction air bag, which further protects the seeds and improves the friction force.

[0034] In some optional specific embodiments, a shutoff valve is provided in the feed pipe 106, and the shutoff valve is electrically connected to a gravimeter installed in the storage chamber 105 for monitoring the weight change of the seeds in the storage chamber 105. The weight change of the seeds in the storage chamber 105 is monitored by the gravimeter, so as to control the shutoff valve to close the feed pipe 106, thereby preventing the materials from piling up in the sub-bin 202.

[0035] The working principle of the present invention is as follows: when sowing seeds, the drone works under the positioning of the satellite positioning system, the flight path of the drone is planned by the path planning module, and the sowing points are planned in advance. When the drone arrives at the designated point, the sowing module sows seeds, and the seeds are stored in the storage chamber 105. When different seeds are sown separately, their coating diameters are different. By changing the initial air pressure of the pneumatic component, the extrusion force between the two sets of friction wheels 309 and the seeds can be controlled, so that the extrusion force between the seeds and the friction wheels 309 is at an appropriate size, which can both launch the seeds and not damage the seed coating, thereby realizing unequally spaced fixed-point sowing of seeds, and at the same time reducing the risk of seed coating breakage, thereby improving the sowing effect.

[0036] When sowing at unequal intervals, mixed seeds often occur. At this time, the air pressure of the air pressure box 313 corresponding to the launching tube 304 is changed in turn through the air pressure setting unit to control the closing and opening of the feed port 203, so that different types of seeds are loaded into different launching tubes 304, thereby improving the accuracy of mixed seeds and improving the sowing effect.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure is limited to these examples. Under the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present specification as described above, which are not provided in detail for the sake of simplicity.

[0038] In addition, to simplify the description and discussion, and in order not to obscure one or more embodiments of the present specification, known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided figures. In addition, devices may be shown in the form of block diagrams to avoid obscuring one or more embodiments of the present specification, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of the present specification are to be implemented (i.e., these details should be fully within the scope of understanding of those skilled in the art). Where specific details (e.g., circuits) are set forth to describe exemplary embodiments of the present disclosure, it is apparent to those skilled in the art that one or more embodiments of the present specification may be implemented without these specific details or with variations in these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0039] One or more embodiments of this specification are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification should be included in the scope of protection of this disclosure.

Claims

1. A satellite positioning intelligently controlled unequal distance seeding system, characterized in that: include: UAV and remote control module. The UAV is used to place seeds at a fixed point under the positioning of the satellite positioning system. The remote control module is used by the staff to remotely control the seeding module within a certain range. Drones include: Satellite navigation module, used for satellite positioning system to obtain the location of seeding module; Inertial navigation module, used to maintain positioning and attitude stability by relying on the acceleration and angular velocity information provided by the inertial measurement unit when the satellite signal is interfered with or temporarily lost; A communication module, used for communicating with a satellite positioning system and a remote control module; Path planning module, used to preset the flight path of the drone and the seeding points; Flight control module, used to control the flight attitude, altitude, speed and other parameters of the drone; A sowing module, used for fixed-point seed placement, comprises: a machine body (101), a storage chamber (105) is provided on the machine body (101), a top cover (102) is provided on the top of the storage chamber (105), a support frame (103) and a spiral frame (104) are also installed around the machine body (101), a feeding pipe (106) is connected to the bottom of the machine body (101), a material distribution component for classifying seeds is connected to the feeding pipe (106), and a plurality of launch components (301) are connected below the material distribution component, and the launch component (301) comprises a launch tube (304), the launch tube (304) 04) are provided with mounting openings on both sides, and friction wheels (309) are installed in the mounting openings. The friction wheels (309) are connected to a rotating shaft (314), and the rotating shaft (314) is connected to a swing arm (308). The swing arm (308) is connected to a connecting sleeve (305), and the connecting sleeve (305) is connected to a driving shaft (307). The driving shaft (307) is connected to a mounting plate (306), and the mounting plate (306) is fixedly installed on the launching tube (304). The swing arm (308) is also connected to a pneumatic component for maintaining the extrusion pressure between the two sets of friction wheels (309) and the seeds in an appropriate range.

2. According to claim 1, a satellite positioning intelligently controlled unequal distance seeding system is characterized in that: The air pressure assembly comprises an air pressure box (313) fixedly mounted on the launch tube (304); two groups of arc-shaped air cylinders (311) are connected to the bottom of the air pressure box (313); an arc-shaped piston cavity (312) is provided in the arc-shaped air cylinder (311); a piston arc plate (310) is adapted to be installed in the piston cavity (312); the piston arc plate (310) is connected to a swing arm (308); the two groups of swing arms (308) are arranged in parallel in an initial state; the air pressure box (313) is connected to an air pressure pump; the air pressure pump is connected to an air pressure setting unit for setting the initial air pressure of the air pressure box (313) according to the seed coating diameter and the seed coating tolerance pressure.

3. The satellite positioning intelligently controlled unequal distance seeding system according to claim 2 is characterized in that: The air pressure setting unit, used for setting the initial air pressure of the air pressure box (313) according to the seed diameter, comprises: Used to read the seed coating diameter and the tolerable pressure of the seed coating; Calculating the swing angle of the swing arm (308) according to the seed diameter; Calculating the squeezed volume of the piston chamber (312) according to the swing angle of the swing arm (308); The pressure borne by the end surface of the piston arc plate (310) is calculated according to the tolerable pressure of the seed coating; The critical pressure of the air pressure box (313) after the piston cavity (312) is squeezed is calculated based on the pressure borne by the end surface of the piston arc plate (310) and the area of ​​the top surface of the piston arc plate (310); The initial air pressure of the air pressure box (313) is calculated based on the critical pressure after the piston chamber (312) is squeezed and the volume of the piston chamber (312) squeezed.

4. The satellite positioning intelligently controlled unequal distance seeding system according to claim 2, characterized in that: The material distribution component comprises a material distribution ring (201), a material distribution bin (202) is provided in the material distribution ring (201), a plurality of material distribution openings (203) are provided on the bottom surface of the material distribution bin (202), a material feed opening (302) is connected to the bottom of the material distribution opening (203), an outlet is provided on the side wall of the material feed opening (302), a hose (303) is connected to the outlet, the hose (303) is arc-shaped, the hose (303) is connected to the launch tube (304), and the material feed opening (302) is connected to the launch tube (304). ) is provided with a movable plate (316) that can move up and down, and the movable plate (316) is used to control the distance between the movable plate (316) and the distribution port (203), so that the feed port (302) between the distribution port (203) and the movable plate (316) can only accommodate one seed, and the distribution component is also connected to a flight control module, which is used to control the UAV to shake the fuselage, so as to drive the seeds to move along the distribution bin (202) under the action of gravity and fall into the feed port (302).

5. The satellite positioning intelligently controlled unequal distance seeding system according to claim 4, characterized in that: The bottom of the movable plate (316) is connected to a push rod (315), the outside of the push rod (315) is provided with a push tube, the push tube and the air pressure box (313) are integrally formed, a return spring is connected between the push rod (315) and the inside of the air pressure box (313), and the air pressure setting unit is used to control the internal air pressure of the air pressure box (313), thereby adjusting the position of the movable plate (316) in the feed port (302).

6. The satellite positioning intelligently controlled unequal distance seeding system according to claim 5, characterized in that: The air pressure setting unit is used to control the air pressure box (313) to classify and load the mixed seeds, including: According to the diameter of a certain type of seed and the launching tube (304) from which the seed is emitted, the air pressure of the air pressure box (313) is controlled, the position of the movable plate (316) in the feed port (302) connected to the launching tube (304) is adjusted, and the other launching tubes (304) are closed; Adjusting the position of the movable plate (316) in the loaded material inlet (302) to allow the seeds to enter the launching tube (304); Driving the movable plate (316) in the loaded material inlet (302) to close the material distribution opening (203); Repeat the above steps to classify and load other types of seeds.

7. The satellite positioning intelligently controlled unequal distance seeding system according to claim 4, characterized in that: Limiting protrusions (204) are provided on both sides of the material distribution opening (203), and the limiting protrusions (204) are used to limit the stacking of seeds in the material feeding opening (302).

8. The satellite positioning intelligently controlled unequal distance seeding system according to claim 1, characterized in that: The bottom of the machine body (101) is connected to a main frame (107), the main frame (107) is connected to a plurality of sets of rotating joints (320), the ends of the rotating joints (320) are connected to rotating sleeves (319), a rotating shaft (318) is sleeved inside the rotating sleeve (319), both ends of the rotating shaft (318) are connected to fixed seats (317), the fixed seat (317) is fixedly connected to the launch tube (304), and the rotating shaft (318) is also poweredly connected to a rotating motor.

9. The satellite positioning intelligently controlled unequal distance seeding system according to claim 1, characterized in that: The outer periphery of the friction wheel (309) is provided with a friction airbag.

10. The satellite positioning intelligently controlled unequal distance seeding system according to claim 1, characterized in that: The feed pipe (106) is provided with a shutoff valve, the shutoff valve is electrically connected to a gravimeter, and the gravimeter is installed in the storage cavity (105) and is used to monitor changes in the weight of the seeds in the storage cavity (105).

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