Unmanned aerial vehicle for farmland surveying and mapping

Abstract

The unmanned aerial vehicle for farmland surveying and mapping comprises an unmanned aerial vehicle main body, a fixer, a driving device and a limiting device, an undercarriage is arranged at the lower part of the unmanned aerial vehicle main body; a cavity is formed in the undercarriage; the fixer comprises a limiting block and a fixing column; the fixing column is arranged at the bottom of the limiting block and penetrates through and is arranged at the bottom of the undercarriage in a sliding mode. The driving device is used for driving the limiting block to move; the limiting device comprises a limiting rod and a trigger; the limiting rod is arranged on one side of the fixer; the limiting block can be fixed to the top of the limiting rod. The trigger is arranged at the bottom of the limiting rod and used for releasing fixation of the limiting block and the limiting rod. The problem that the surveying and mapping unmanned aerial vehicle is difficult to land and stop at any time due to complex and changeable farmland terrains is solved.

Description

Technical Field

[0001] The utility model relates to the field of agriculture, and particularly to an unmanned aerial vehicle for farmland mapping. Background Art

[0002] With the rapid development of modern agricultural technology, unmanned aerial vehicles are increasingly widely used in fields such as farmland mapping, crop monitoring, and precision agriculture. Unmanned aerial vehicles, with their characteristics of high efficiency, flexibility, and precision, have greatly improved the intelligent level of agricultural production. However, during the farmland mapping process, unmanned aerial vehicles face many challenges, and one of them is how to achieve stable docking in a complex and changeable field environment.

[0003] When traditional unmanned aerial vehicles operate in the field, they often rely on precise control by the operator to find a suitable landing point and manually control their landing. However, the farmland terrain is complex and changeable, including uneven ground, dense crop areas, water channels, and ridges, etc., which pose great challenges to the safe landing of unmanned aerial vehicles. Once the landing point is selected improperly or the landing process is interfered by the outside world, the unmanned aerial vehicle is extremely likely to tip over or be damaged, which not only affects the smooth progress of the mapping task but may also cause irreversible damage to the unmanned aerial vehicle itself. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an unmanned aerial vehicle for farmland mapping, which solves the problem that it is difficult for the mapping unmanned aerial vehicle to land and dock at any time due to the complex and changeable farmland terrain.

[0005] The embodiments of the utility model are realized through the following technical solutions:

[0006] An unmanned aerial vehicle for farmland mapping, comprising:

[0007] An unmanned aerial vehicle body, with a landing gear provided at the lower part of the unmanned aerial vehicle body; a cavity is provided inside the landing gear;

[0008] A fixator, including a limit block, a fixing column, and an elastic member; the fixing column is provided at the bottom of the limit block, passes through and slides on the bottom of the landing gear; the elastic member is provided on the limit block, and in its initial state, the fixing column extends out of the bottom of the landing gear;

[0009] A driving device for driving the limit block to move and compressing or stretching the elastic member;

[0010] A limiting device, including a limiting rod and a trigger; the limiting rod is rotatably provided inside the cavity; in the initial state, the limit block is located at the top of the limiting rod; the trigger slides on one side of the bottom of the limiting rod, and in the working state, the trigger slides and collides with the limiting rod to rotate, for separating the limit block from the limiting rod.

[0011] The bottom of the cavity is provided with a second through hole, a first through hole and a rotating groove.

[0012] The elastic member is a first spring; the fixing column passes through the first through hole; the first spring surrounds the fixing column, with one end connected to the bottom of the limiting block and the other end connected to the edge of the first through hole.

[0013] The driving device includes a motor, a lead screw and a sliding block; the motor is arranged at the top of the cavity; one end of the lead screw is connected to the motor, and the motor is used to drive the lead screw to rotate, and the other end is rotatably arranged in the rotating groove; the sliding block is provided with a threaded through hole and is fitted on the lead screw; one side of the limiting block is provided with a sliding through hole, and the lead screw passes through the sliding through hole; the sliding block is located below the limiting block.

[0014] The limiting rod is rotatably arranged in the cavity, and bumps are further provided at both ends thereof; the trigger is arranged at the bottom of the cavity, slidably arranged in the second through hole and extending downward; the bump at the upper end thereof is located on one side close to the fixer, and the bump at the lower end thereof is located on one side of the trigger.

[0015] The trigger includes a sliding column, a contact head and a second spring; the sliding column is slidably arranged in the second through hole and extends outward; the contact head is arranged at one end of the sliding column located in the cavity; the second spring surrounds the sliding column, with one end connected to the contact head and the other end connected to the edge of the second through hole.

[0016] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0017] An unmanned aerial vehicle for farmland surveying and mapping according to the present invention, through a uniquely designed fixer and limiting device, when the unmanned aerial vehicle conducts surveying and mapping in the field, a fixing column that can be automatically triggered and popped out is used for position fixing, so that it can be stably docked in the field at any time, realizing the automatic fixing function during landing in the field. This design not only improves the stability of the unmanned aerial vehicle in complex terrains, but also reduces manual intervention, improves the operation efficiency and safety, and provides strong support for the intelligent development of modern agriculture. Description of the Drawings

[0018] Figure 1 is the overall schematic diagram of the present invention;

[0019] Figure 2 is the Figure 1 partial cross-sectional view at A in the attachment.

[0020] In the figure, 1 is the UAV body, 2 is the landing gear, 201 is the cavity, 202 is the second through hole, 203 is the first through hole, 204 is the rotating groove, 3 is the camera, 401 is the limiting block, 402 is the fixing column, 403 is the first spring, 501 is the motor, 502 is the lead screw, 503 is the sliding block, 601 is the limiting rod, 602 is the rotating column, 603 is the convex block, 604 is the sliding column, and 606 is the second spring. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figure 1 and 2 shown, a UAV for farmland mapping includes a UAV body 1, a fixator, a driving device, a limiting device and a camera 3; a landing gear 2 is provided at the lower part of the UAV body 1, and a camera 3 is provided at its bottom for farmland mapping; a cavity 201 is provided inside the supporting feet of the landing gear 2; a second through hole 202, a first through hole 203 and a rotating groove 204 are provided at the bottom of the cavity 201; it should be noted that the UAV body 1 and the camera 3 are prior arts and not the improvements of this embodiment, so details thereof will not be described here.

[0024] The driving device includes a motor 501, a lead screw 502 and a sliding block 503; the motor 501 is provided at the top of the cavity 201; one end of the lead screw 502 is connected to the motor 501, and the motor 501 is used to drive the lead screw 502 to rotate, and the other end is rotatably provided in the rotating groove 204; a threaded through hole is provided on the sliding block 503, and the sliding block 503 is cooperatively provided on the lead screw 502. The side surface of the sliding block 503 is in contact with the side wall of the cavity 201 to limit its offset, so that the sliding block 503 can move up and down when the lead screw 502 rotates.

[0025] The fixator includes a limit block 401, a fixing column 402, and a first spring 403; the limit block 401 is placed horizontally, and a sliding through-hole is provided on one side thereof. The lead screw 502 passes through the sliding through-hole, enabling the limit block 401 to move up and down along the lead screw 502; one end of the fixing column 402 is connected to the bottom of the limit block 401, beside the sliding through-hole; the other end of the fixing column 402 is provided with a tip and can extend outwards through the first through-hole 203; the first spring 403 surrounds the fixing column 402, with one end connected to the bottom of the limit block 401 and the other end connected to the edge of the first through-hole 203;

[0026] Specifically, the sliding block 503 is located below the limit block 401 and is used to lift the limit block 401;

[0027] The limiting device is arranged beside the fixator and includes a limiting rod 601 and a trigger; a rotating column 602 is provided on the side wall of the cavity 201, beside the fixator; the middle of the limiting rod 601 is hinged to the rotating column 602, and a torsion spring is provided at the hinged part for the limiting rod 601 to reset after rotation; the trigger is arranged at the bottom of the cavity 201, beside the limiting rod 601; the trigger includes a sliding column 604, a contact head 605, and a second spring 606; the sliding column 604 slides in the second through-hole 202 and extends outwards; the contact head 605 is arranged at one end of the sliding column 604 located in the cavity 201; the second spring 606 surrounds the sliding column 604, with one end connected to the contact head 605 and the other end connected to the edge of the second through-hole 202 for the sliding column 604 to reset after moving along the second through-hole 202; bumps 603 are also provided at both ends of the limiting rod 601; the bump 603 at the upper end of the limiting rod 601 is located on the side close to the fixator, and its shape is triangular, with the top surface being a horizontal plane for placing the limit block 401, and the side surface being an inclined plane for the limit block 401 to pass through; the bump 603 at the lower end of the limiting rod 601 is located on the side of the trigger, and its shape is triangular, with the side surface being an inclined plane for the sliding column 604 to push against the bump 603 and rotate the limiting rod 601 when moving;

[0028] Specifically, when the sliding column 604 does not contact the lower bump 603 and the limit block 401 is placed on the upper bump 603, the limiting rod 601 is in an inclined state, and the top surface of the upper bump 603 remains horizontal; when the sliding column 604 pushes against the bump 603 and moves, the limiting rod 601 is in a vertical state and does not interfere with the up and down movement of the limit block 401.

[0029] The working principle of this embodiment is:

[0030] An unmanned aerial vehicle for farmland surveying and mapping according to the present utility model. Under the action of a torsion spring, one side of the limiting rod 601 is flush with the side surface of the limiting block 401. The limiting block 401 can be driven by the sliding block 503 to move above the convex block 603 at the upper end of the limiting rod 601, so that its position is fixed and the first spring is in a stretched state. Then the sliding block 503 returns to the bottom end, and this state is the initial state. When the unmanned aerial vehicle lands, the bottom of the sliding column 604 contacts the farmland. At this time, the device is in a working state. After it moves along the second through hole 202, the contact head 605 at its upper end contacts the convex block 603 at the lower end of the limiting rod 601 and causes it to rotate, thereby driving the upper end of the limiting rod 601 to rotate and causing the limiting block 401 to be released from fixation. Then, under the action of the first spring 403, the fixing column 402 quickly slides out along the first through hole 203 and inserts into the farmland, so that the whole unmanned aerial vehicle is fixed, avoiding tipping over due to uneven ground. When the fixing column 402 needs to be retracted, the sliding block 503 rises, driving the limiting block 401 to move above the convex block 603 at the upper end of the limiting rod 601 to fix its position.

[0031] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A drone for farmland surveying and mapping, characterized in that: include: A drone body, wherein a landing gear is provided at the lower part of the drone body; a cavity is provided inside the landing gear; The fixer comprises a limit block, a fixing column and an elastic member; the fixing column is arranged at the bottom of the limit block, passes through and is slidably arranged at the bottom of the landing gear; the elastic member is arranged on the limit block, and its initial state makes the fixing column extend out of the bottom of the landing gear; A driving device, used for driving the limit block to move and compress or stretch the elastic member; The limiting device comprises a limiting rod and a trigger; the limiting rod is rotatably arranged inside the cavity; in the initial state, the limiting block is located at the top of the limiting rod; the trigger is slidably arranged on one side of the bottom of the limiting rod, and in the working state, the trigger slides and collides with the limiting rod to rotate, so as to separate the limiting block from the limiting rod.

2. The drone for farmland surveying and mapping according to claim 1, characterized in that: The bottom of the cavity is provided with a second through hole, a first through hole and a rotation groove.

3. The drone for farmland surveying and mapping according to claim 2, characterized in that: The elastic member is a first spring; the fixing column passes through the first through hole; the first spring surrounds the fixing column, one end of the first spring is connected to the bottom of the limit block, and the other end is connected to the edge of the first through hole.

4. The drone for farmland surveying and mapping according to claim 3, characterized in that: The driving device includes a motor, a screw rod and a sliding block; the motor is arranged at the top of the cavity; one end of the screw rod is connected to the motor, and the motor is used to drive the screw rod to rotate, and the other end of the screw rod is rotatably arranged in the rotating groove; a threaded through hole is provided on the sliding block, and is matched with the screw rod; a sliding through hole is provided on one side of the limit block, and the screw rod passes through the sliding through hole; the sliding block is located below the limit block.

5. The drone for farmland surveying and mapping according to claim 2, characterized in that: The limit rod is rotatably arranged in the cavity, and protrusions are provided at both ends thereof; the trigger is arranged at the bottom of the cavity, slidably arranged in the second through hole, and extends downward; the protrusion at its upper end is located on the side close to the fixer, and the protrusion at its lower end is located on one side of the trigger.

6. The drone for farmland surveying and mapping according to claim 5, characterized in that: The trigger includes a sliding column, a contact head and a second spring; the sliding column is slidably arranged in the second through hole and extends outward; the contact head is arranged on the sliding column at one end of the cavity; the second spring surrounds the sliding column, one end of which is connected to the contact head, and the other end is connected to the edge of the second through hole.

Images