An unmanned aerial vehicle based vegetation diversity detection device

Abstract

The present application relates to a kind of unmanned aerial vehicle-based vegetation diversity detection device.The detection device includes unmanned aerial vehicle body;Camera arranged on unmanned aerial vehicle body, for detecting vegetation;Driving motor arranged on unmanned aerial vehicle body;The center of circle is connected with the output shaft of driving motor rotary disc, the axis of rotary disc coincides with the center line of unmanned aerial vehicle body;No.1 cutting assembly and no.2 cutting assembly arranged on rotary disc, no.1 cutting assembly and no.2 cutting assembly are used to support and cut the plant on the moving path of unmanned aerial vehicle body in the process of rotation for unmanned aerial vehicle body landing;The present application increases rotating cutting assembly on unmanned aerial vehicle, and the barrier on the path of unmanned aerial vehicle is rotated and cut, so as to create a gap for unmanned aerial vehicle to pass through, so that unmanned aerial vehicle detection equipment can fly close to ground, ensure the accuracy and flexibility of unmanned aerial vehicle detection.

Description

Technical Field

[0001] The present invention belongs to the technical field of vegetation detection, and in particular relates to a vegetation diversity detection device based on an unmanned aerial vehicle (UAV). Background Art

[0002] Vegetation refers to the plant communities covering a specific area of ​​the Earth's surface. Depending on the type of plant community, it can be divided into meadow vegetation, forest vegetation, and other categories. It is closely related to natural environmental factors such as climate, soil, topography, animal kingdom, and water conditions. Globally, it can be divided into two major categories: marine vegetation and terrestrial vegetation. However, due to the wide variation in terrestrial environments, a variety of vegetation types have emerged, which can be divided into multiple levels of classification, such as vegetation type, plant community, and clump. It can also be divided into natural vegetation and artificial vegetation. Artificial vegetation includes farmland, orchards, grasslands, artificial forests, and urban green spaces. Natural vegetation includes primary vegetation and secondary vegetation.

[0003] In the process of detecting vegetation diversity, manual field detection, as well as drone and remote sensing detection can be used. Among them, drone detection has the characteristics of high flexibility and high accuracy. However, for forests with dense trees, the leaves block the movement path of the drone, making it difficult for the drone to enter the forest, making it impossible to detect low vegetation in the forest, thus hindering the progress of detection work. Summary of the Invention

[0004] The purpose of the present invention is to provide a vegetation diversity detection device based on a drone in order to solve the problems raised in the above background technology.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A vegetation diversity detection device based on a drone, comprising:

[0007] The drone itself;

[0008] The camera installed on the drone body is used to detect vegetation;

[0009] A drive motor provided on the drone body;

[0010] A turntable whose center is connected to the output shaft of the drive motor, and whose axis coincides with the centerline of the drone body;

[0011] The No. 1 cutting assembly and the No. 2 cutting assembly are arranged on the turntable, and the No. 1 cutting assembly and the No. 2 cutting assembly are used to support the landing of the drone body and cut the plants on the moving path of the drone body during the rotation process.

[0012] Preferably, the No. 1 cutting assembly includes two No. 1 cutting blades symmetrically distributed along the center of the turntable, and the No. 2 cutting assembly includes two No. 2 cutting blades symmetrically distributed along the center of the turntable. A return spring is provided between the No. 1 cutting blade and the No. 2 cutting blade and the turntable. The return spring is used to drive the No. 1 cutting blade and the No. 2 cutting blade to move to the set position and provide a buffer for the landing of the drone body.

[0013] Preferably, the distance between the second cutting edge and the center of the turntable is smaller than the distance between the first cutting edge and the center of the turntable.

[0014] Preferably, the drone body adopts a four-rotor drone, including four brackets and four propellers. The drone body is provided with four conveying mechanisms corresponding to the brackets for driving the movement of tree branches. Power connection mechanisms are respectively provided between the conveying mechanisms and the drive motors. The conveying direction of the four conveying mechanisms is to simultaneously drive the tree branches to move in a direction away from the drone body.

[0015] Preferably, the conveying mechanism includes a frame, a plurality of tensioning wheels and a conveyor belt arranged on the tensioning wheels.

[0016] Preferably, the power connection mechanism includes a driving wheel provided on the conveying mechanism for rotating the conveyor belt, the driving wheel is connected to a reducer via a synchronous belt, and the reducer is connected to the output shaft of the driving motor via a belt.

[0017] Preferably, the conveyor belt is provided with a plurality of blocks to prevent branches from sliding.

[0018] The beneficial effects of the present invention are:

[0019] The present invention adds a rotary cutting component to the drone to rotary cut the obstructions on the drone's path, thereby creating a gap for the drone to pass through, allowing the drone detection equipment to fly close to the ground, ensuring the accuracy and flexibility of drone detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the second viewing angle of the present invention;

[0022] Figure 3 This is a schematic diagram of the positional relationship between the second cutting edge and the first cutting edge after the second cutting edge is rotated 90 degrees in the present invention;

[0023] Figure 4 It is a schematic cross-sectional structural diagram of the conveying mechanism in the present invention.

[0024] In the figure: 1. UAV body; 2. Drive motor; 3. Turntable; 4. Cutting blade No. 1; 5. Cutting blade No. 2; 6. Return spring; 7. Bracket; 8. Conveying mechanism; 81. Frame; 82. Tensioning pulley; 83. Conveyor belt; 9. Driving pulley; 10. Reducer; 11. Stop block. DETAILED DESCRIPTION

[0025] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content. Example 1

[0026] like Figures 1-4 As shown, a vegetation diversity detection device based on a drone includes:

[0027] UAV body 1;

[0028] The camera provided on the drone body 1 is used to detect vegetation;

[0029] A drive motor 2 provided on the drone body 1;

[0030] A turntable 3 whose center is connected to the output shaft of the drive motor 2, and whose axis coincides with the center line of the drone body 1;

[0031] The No. 1 cutting assembly and the No. 2 cutting assembly are arranged on the turntable 3. The No. 1 cutting assembly and the No. 2 cutting assembly are used to support the landing of the drone body 1 and cut the plants on the moving path of the drone body 1 during the rotation process.

[0032] As a further solution of the present invention, the No. 1 cutting component includes two No. 1 cutting blades 4 symmetrically distributed along the center of the turntable 3, and the No. 2 cutting component includes two No. 2 cutting blades 5 symmetrically distributed along the center of the turntable 3. A return spring 6 is provided between the No. 1 cutting blade 4 and the No. 2 cutting blade 5 and the turntable 3. The return spring 6 is used to drive the No. 1 cutting blade 4 and the No. 2 cutting blade 5 to move to the set position and provide a buffer for the landing of the drone body 1.

[0033] In the above embodiment, during flight, the drone body 1 encounters a foliage obstacle below, preventing it from descending. At this point, the drive motor 2 on the drone body 1 is remotely controlled and activated, driving the turntable 3. This causes the first and second cutting blades 4 and 5 on the turntable 3 to rotate synchronously. During this rotation, the first and second cutting blades 4 and 5 rotate due to centrifugal force, causing them to rotate away from the turntable 3, shifting from a vertical position to a horizontal position. As the drone body 1 descends, the rotating first and second cutting blades 4 and 5 contact leaves or plants below the drone body 1, blocking them and creating a gap in the landing path for the drone body 1. After passing through the gap, the drone body 1 moves to the ground, enabling it to detect low vegetation. To depart, the drone body 1 flies upward through the gap.

[0034] Among them, the drone body 1 will apply pressure to the No. 1 cutting edge 4 and the No. 2 cutting edge 5 when landing, so that the return spring 6 on the No. 1 cutting edge 4 and the No. 2 cutting edge 5 will generate force. The return spring 6 can cushion the contact and collision between the drone body 1 and the ground during the landing process, so that the drone body 1 can land more smoothly.

[0035] As a further solution of the present invention, the distance between the second cutting edge 5 and the center of the turntable 3 is smaller than the distance between the first cutting edge 4 and the center of the turntable 3 .

[0036] In the above embodiment, the No. 2 cutting edge 5 and the No. 1 cutting edge 4 will be in a horizontal or nearly horizontal state when rotating. At this time, the cutting range of the No. 2 cutting edge 5 close to the center of the turntable 3 and the No. 1 cutting edge 4 far away from the center of the turntable 3 form an intersection and overlap, so that the situation where the long cutting edge of the overlapping length of the No. 1 cutting edge 4 and the No. 2 cutting edge 5 is originally required to ensure that the drone body 1 passes through is changed to only two short No. 1 cutting edges 4 and No. 2 cutting edges 5 to open a sufficiently large gap, which not only reduces the manufacturing cost of the material, but also reduces the counterweight of the drone, making the drone's endurance longer.

[0037] As a further solution of the present invention, the drone body 1 adopts a four-rotor drone, including four brackets 7 and four propellers. The drone body 1 is provided with four conveying mechanisms 8 corresponding to the brackets 7 for driving the movement of tree branches. A power connection mechanism is respectively provided between the conveying mechanism 8 and the drive motor 2. The conveying direction of the four conveying mechanisms 8 is to simultaneously drive the tree branches to move in a direction away from the drone body 1.

[0038] As a further solution of the present invention, the conveying mechanism 8 includes a frame 81 , a plurality of tensioning wheels 82 , and a conveying belt 83 provided on the tensioning wheels 82 .

[0039] As a further solution of the present invention, the power connection mechanism includes a driving wheel 9 provided on the conveying mechanism 8 for rotating the conveyor belt 83. The driving wheel 9 is connected to a reducer 10 through a synchronous belt, and the reducer 10 is connected to the output shaft of the drive motor 2 through a belt.

[0040] In the above embodiment, if the leaves contain hard objects such as thick branches, the first and second cutting blades 4 and 5 are unable to break them, and the drone body 1 is still unable to complete its downward movement. At this point, the drive motor 2 is stopped, and the first and second cutting blades 4 and 5, under the action of the return spring 6, move toward the axis of the turntable 3, controlling the downward movement of the drone body 1 so that the first and second cutting blades 4 and 5 are inserted into the side of the branch or the gap between multiple branches. The drive motor 2 is then activated. The drive motor 2 rotates the first and second cutting blades 4 and 5, gradually turning them to a horizontal position. As the first and second cutting blades 4 and 5 rotate, they move the branch upward to the conveyor mechanism 8. Simultaneously, the drive motor 2 activates the reducer 10 via a belt. The reducer 10 drives the drive pulley 9 through the drive pulley 9, causing the conveyor mechanism 8 to rotate at a low speed. As the conveyor belt 83 in the conveyor mechanism 8 rotates, it drives the branch away from the drone body 1 until it passes over the drone body 1.

[0041] When returning upward, the driving motor 2 is reversed, causing the conveying mechanism 8 to also reverse, pushing the branches from the middle to both sides, thereby re-exposing the gap for the drone body 1 to pass through.

[0042] The frame 81 is a hard structure, which is divided into two pieces. A plurality of tensioning wheels 82 are provided between the two frames 81 , and a conveyor belt 83 is provided between the plurality of tensioning wheels 82 .

[0043] As a further solution of the present invention, the conveyor belt 83 is provided with a plurality of stoppers 11 to prevent branches from sliding.

[0044] In the above embodiment, by providing the stopper 11, the branches are stuck at the stopper 11 during the rotation of the conveyor belt 83, preventing the branches from slipping on the conveyor belt 83 due to insufficient friction, thereby ensuring the normal passage of the branches.

[0045] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A vegetation diversity detection device based on drone, characterized in that: include: UAV body (1); A camera provided on the drone body (1) is used to detect vegetation; A drive motor (2) provided on the drone body (1); A turntable (3) whose center is connected to the output shaft of the drive motor (2), and whose axis coincides with the center line of the drone body (1); A No. 1 cutting assembly and a No. 2 cutting assembly are provided on the turntable (3), and the No. 1 cutting assembly and the No. 2 cutting assembly are used to support the landing of the drone body (1) and cut plants on the moving path of the drone body (1) during the rotation process; The drone body (1) is a quad-rotor drone, comprising four brackets (7) and four propellers. The drone body (1) is provided with four conveying mechanisms (8) corresponding to the brackets (7) and used to drive the branches to move. A power connection mechanism is provided between the conveying mechanism (8) and the drive motor (2). The conveying direction of the four conveying mechanisms (8) is to simultaneously drive the branches to move in a direction away from the drone body (1). The conveying mechanism (8) comprises a frame (81), a plurality of tensioning wheels (82), and a conveying belt (83) arranged on the tensioning wheels (82).

2. The vegetation diversity detection device based on a drone according to claim 1, characterized in that: The No. 1 cutting assembly comprises two No. 1 cutting blades (4) symmetrically distributed along the center of the turntable (3), and the No. 2 cutting assembly comprises two No. 2 cutting blades (5) symmetrically distributed along the center of the turntable (3). A return spring (6) is provided between the No. 1 cutting blade (4) and the No. 2 cutting blade (5) and the turntable (3). The return spring (6) is used to drive the No. 1 cutting blade (4) and the No. 2 cutting blade (5) to move to a set position and provide a buffer for the landing of the UAV body (1).

3. The vegetation diversity detection device based on a drone according to claim 2, characterized in that: The distance between the second cutting edge (5) and the center of the turntable (3) is smaller than the distance between the first cutting edge (4) and the center of the turntable (3).

4. The vegetation diversity detection device based on a drone according to claim 1, characterized in that: The power connection mechanism includes a driving wheel (9) provided on the conveying mechanism (8) for rotating the conveying belt (83), the driving wheel (9) being connected to a reducer (10) via a synchronous belt, and the reducer (10) being connected to an output shaft of the driving motor (2) via a belt.

5. The vegetation diversity detection device based on a drone according to claim 4, characterized in that: The conveyor belt (83) is provided with a plurality of stoppers (11) for preventing branches from sliding.

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