Sampling device for tree detection based on unmanned aerial vehicle

Abstract

The utility model provides a sampling device for tree detection based on an unmanned aerial vehicle, and relates to the technical field of tree sampling based on the unmanned aerial vehicle. A mounting plate is fixedly mounted on an unmanned aerial vehicle entity, a sampling mechanism is arranged on the mounting plate and is responsible for acquiring samples from trees, a positioning device and a sampling device connected with the positioning device are arranged on the sampling mechanism, a first motor drives a lead screw and drives a sliding plate, so that the sampling device is driven to move to a designated position, and a second motor of the sampling device drives a rotating shaft. A drill bit device is fixedly arranged at the extending end of the sampling mechanism and used for drilling tree samples, and the collecting mechanism is located below the sampling mechanism, so that tree sample drilling and sampling are completed; the positioning device is matched with the sampling device, so that the control accuracy of the sampling position and depth is improved, the whole process is automatically realized, workers are prevented from being in direct contact with trees, the safety risk is reduced, and the personal safety is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tree sampling by drones, and in particular to a sampling device for tree detection based on drones. Background Technology

[0002] With the continuous development of agricultural and forestry technologies, tree health monitoring and disease detection have gradually become important aspects of forestry management. Traditional tree detection methods usually rely on manual inspections or ground-based auxiliary equipment. These methods suffer from problems such as high labor intensity, low efficiency, and poor safety, especially in large forest areas or areas with complex terrain, where traditional detection methods are difficult to meet the needs for efficient and accurate detection.

[0003] Currently, the detection of diseases inside trees mainly relies on manual drilling to collect samples, which are then sent to a laboratory for analysis. However, this method has several limitations, such as low detection efficiency, the need to climb trees or use high-altitude work equipment, which increases the operation time and difficulty. In addition, working at heights also poses certain safety risks.

[0004] To address the aforementioned problems, this invention proposes a sampling device for tree inspection based on a drone. This device integrates a drilling sampling mechanism onto the drone, enabling precise sampling of diseased areas inside trees. The drone can fly to the target location and use the drilling device to collect samples, reducing the complexity of manual operation and lowering the safety risks of traditional high-altitude work. Utility Model Content

[0005] The main purpose of this utility model is to provide a sampling device for tree detection based on unmanned aerial vehicles (UAVs), which solves the technical problems of high labor intensity, low efficiency and poor safety in tree sampling in the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sampling device for tree detection based on a drone, comprising: a drone entity, an installation plate fixedly installed on the front of the drone entity, a sampling mechanism provided on the upper surface of the installation plate, and a collection mechanism located below the sampling mechanism on the bottom surface of the installation plate;

[0007] The sampling mechanism includes a square box fixedly mounted on the upper surface of the mounting plate. The square box is equipped with a positioning device and a sampling device connected thereto, wherein:

[0008] The positioning device includes a first motor that is fixedly connected to one side of the square box, and a rotatable lead screw is fixedly installed at the output end of the first motor. A sliding plate is threaded onto the outer surface of the lead screw.

[0009] The sampling device is fixedly connected to the positioning device in parallel via a sliding plate that can slide along the inner wall of the box. A second motor is fixedly installed on the side of the sliding plate that is close to the first motor. A rotating shaft is fixedly installed at the output end of the second motor. The rotating shaft can rotatably pass through the other side of the box. A drill bit device is fixedly installed at the protruding end of the rotating shaft.

[0010] When the drone moves to the location of the tree trunk to be sampled, the positioning device is activated to drive the sampling device. After approaching the location of the tree trunk, it drills a hole to collect the sample, which then falls into the collection mechanism.

[0011] In a preferred embodiment, the drill bit device includes: a mounting cylinder fixedly installed at the end of the rotating shaft away from the second motor cover, wherein a sampling drill bit is placed inside the mounting cylinder and fastened with screws.

[0012] In a preferred embodiment, a plug is snapped onto the mounting cylinder to waterproof and dustproof the screws.

[0013] In the preferred embodiment, the mounting plate is provided with structural support, which includes a reinforcing frame fixedly connected to the mounting plate to maintain the stability of the sampling device during flight.

[0014] The reinforced frame is made of aluminum alloy or carbon fiber.

[0015] In the preferred embodiment, the sampling mechanism further includes a first motor cover that houses the first motor and a second motor cover that houses the second motor.

[0016] Both the first motor protective cover and the second motor cover have ventilation openings at their bottoms for heat dissipation of the motor.

[0017] In a preferred embodiment, the collection mechanism includes a U-shaped frame and a J-shaped frame fixedly connected to the bottom surface of the mounting plate. A cloth receiving device is fixedly installed on the inner side of the U-shaped frame, and a collection box is slidably connected inside the J-shaped frame. A handle is fixedly connected to the side of the collection box near the limiting mechanism.

[0018] In the preferred embodiment, the receiving cloth is made of neoprene rubber, and its upper surface is provided with an anti-stick treatment to prevent the sample from sticking to the receiving cloth. At the same time, the angle of the receiving cloth is set to an inclined state between 30° and 60°, so as to facilitate the sample to slide into the collection box.

[0019] In a preferred embodiment, a limiting mechanism is also included below the collecting mechanism. The limiting mechanism includes a spring fixedly connected to the bottom surface of the J-shaped frame, a pull member fixedly connected to the end of the spring away from the J-shaped frame, and a limiting rod sleeved inside the spring fixedly connected to the other end of the pull member.

[0020] The end of the limiting rod away from the pull piece is inserted into the limiting hole, which is located at the bottom of the collection box and is a blind hole, serving to limit movement.

[0021] The bottom of the J-shaped frame has a through hole, and the limiting rod is slidably connected to the inside of the hole.

[0022] This utility model provides a sampling device for tree detection based on a drone. A mounting plate is fixedly installed on the drone body 1, and a sampling mechanism is set on the mounting plate to collect samples from the trees. The sampling mechanism is equipped with a positioning device and a sampling device connected to it. A first motor drives a lead screw, which in turn moves a sliding plate, thereby moving the sampling device to a designated position. A second motor drives a rotating shaft, and a drill bit is fixedly installed at its extended end for drilling tree samples. A collection mechanism is located below the sampling mechanism, thus completing the drilling and sampling of tree samples. This improves work efficiency. The positioning device and the sampling device work together to improve the accuracy of sampling position and depth control. The entire process is automated, avoiding direct contact between personnel and trees, reducing safety risks, and improving personal safety. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the first motor protective cover and the second motor cover of this utility model;

[0026] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a three-dimensional structural diagram of the sampling mechanism and the collection mechanism of this utility model;

[0028] Figure 5 This is a utility model Figure 4 Enlarged view of point B in the middle;

[0029] Figure 6 This is a three-dimensional structural diagram of the limiting mechanism of this utility model, cut and viewed.

[0030] In the diagram: 1. Unmanned Aerial Vehicle (UAV); 2. Mounting Plate; 3. Sampling Mechanism; 301. Square Box; 302. First Motor Cover; 303. Lead Screw; 304. Slide Plate; 305. Second Motor Cover; 306. Sampling Drill Bit; 307. First Motor; 308. Second Motor; 309. Shaft; 310. Plug; 311. Mounting Cylinder; 312. Screw; 4. Collection Mechanism; 401. U-Shaped Frame; 402. Cloth Connection; 403. J-Shaped Frame; 404. Collection Box; 405. Handle; 5. Limiting Mechanism; 501. Spring; 502. Pull Component; 503. Limiting Rod; 504. Round Hole; 505. Detailed Implementation

[0031] Example 1

[0032] like Figure 1-6 As shown, a sampling device for tree detection based on a drone includes a drone body 1, a mounting plate 2 fixedly mounted on the front of the drone body 1, a sampling mechanism 3 provided on the upper surface of the mounting plate 2, and a collection mechanism 4 located below the sampling mechanism 3 provided on the bottom surface of the mounting plate 2.

[0033] Sampling mechanism 3 includes a square box 301 fixedly installed on the upper surface of mounting plate 2. The square box 301 is equipped with a positioning device and a sampling device connected thereto, wherein:

[0034] The positioning device includes a first motor 307 that is fixedly connected to one side of the square box 301. A rotatable lead screw 303 is fixedly installed at the output end of the first motor 307. A sliding plate 304 is threadedly connected to the outer surface of the lead screw 303.

[0035] The sampling device is fixedly connected to the positioning device in parallel via a sliding plate 304 that can slide along the inner wall of the box 301. A second motor 308 is fixedly installed on the side of the sliding plate 304 near the first motor 307. A rotating shaft 309 is fixedly installed at the output end of the second motor 308. The rotating shaft 309 rotatably passes through the other side of the box 301. A drill bit device is fixedly installed at the protruding end of the rotating shaft 309.

[0036] When the drone entity 1 moves to the location of the tree trunk to be sampled, the positioning device is activated to drive the sampling device. After approaching the location of the tree trunk to be sampled, the drone performs drilling and sampling, and the sample falls into the collection mechanism 4.

[0037] In this embodiment, a mounting plate 2 is fixedly installed on the drone entity 1. A sampling mechanism 3 is set on the mounting plate 2, which is responsible for obtaining samples from trees. The sampling mechanism 3 is equipped with a positioning device and a sampling device connected to it. A first motor 307 drives a lead screw 303, which drives a sliding plate 304, thereby moving the sampling device to a designated position. A second motor 308 of the sampling device drives a rotating shaft 309, and a drill bit is fixedly installed at its extended end for drilling tree samples. A collection mechanism 4 is located below the sampling mechanism 3, thereby completing the drilling and sampling of tree samples. This improves work efficiency. The positioning device and the sampling device work together to improve the control accuracy of the sampling position and depth. The entire process is automated, avoiding direct contact between personnel and trees, reducing safety risks, and improving personal safety.

[0038] In the preferred embodiment, the drill bit device includes: an installation cylinder 311 fixedly installed at the end of the rotating shaft 309 away from the second motor cover 305, and a sampling drill bit 306 placed inside the installation cylinder 311 and fastened by screws 312.

[0039] In the preferred embodiment, a plug 310 is snapped onto the mounting cylinder 311 to provide waterproofing and dustproofing for the screw 312.

[0040] In this embodiment, the main function of the plug 310 is to provide waterproof and dustproof protection, protecting the screw 312 from external environmental corrosion, thereby extending its service life and maintaining its fastening effect.

[0041] The sampling drill bit 306 is secured inside the mounting cylinder 311 by screw 312, while the plug 310 protects the screw 312, thus improving the stability and reliability of the entire device during the drilling process.

[0042] In the preferred embodiment, the mounting plate 2 is provided with structural supports to maintain the stability of the sampling device during flight;

[0043] The structural support includes a reinforced frame fixedly connected to the mounting plate to maintain the stability of the sampling device during flight;

[0044] The reinforced frame is made of aluminum alloy or carbon fiber.

[0045] Furthermore, structural supports can also utilize existing support arms and shock absorbers, fixed shafts and support rods, and other reinforcement components.

[0046] In the preferred embodiment, the sampling mechanism 3 further includes a first motor cover 302 that houses the first motor 307 and a second motor cover 305 that houses the second motor 308.

[0047] Ventilation openings are provided at the bottom of both the first motor protective cover 302 and the second motor cover 305 for heat dissipation of the motor.

[0048] In this embodiment, a protective cover and ventilation openings are provided for the motor to protect it, thereby extending its service life, improving economy, and enhancing stability and reliability.

[0049] In the preferred embodiment, the collection mechanism 4 includes a U-shaped frame 401 and a J-shaped frame 403 fixedly connected to the bottom surface of the mounting plate 2. A cloth receiving 402 is fixedly installed on the inner side of the U-shaped frame 401, and a collection box 404 is slidably connected inside the J-shaped frame 403. A handle 405 is fixedly connected to the side of the collection box 404 near the limiting mechanism 5.

[0050] In this embodiment, a collection box 404 is slidably connected inside the J-shaped frame 403. The collection box 404 is a movable container used to collect and store the material received from the receiving cloth 402, thereby realizing the collection function.

[0051] The collection box 404 is also equipped with a handle 405, which enables the collection box 404 to be lifted and moved.

[0052] In the preferred embodiment, the material of the receiving cloth 402 is neoprene rubber, and its upper surface is provided with an anti-stick treatment to prevent the sample from sticking to the receiving cloth 402. At the same time, the angle of the receiving cloth 402 is set to a tilt of 30-60 degrees, so as to facilitate the sample to slide into the collection box 404.

[0053] In this embodiment, the material of the splice 402 is selected based on the principles of heat resistance, aging resistance, and acid and alkali resistance, and can be adapted to specific circumstances.

[0054] In this embodiment, the angle of the receiving cloth 402 is set between 30° and 60°, with 40° being optimal, so that it is in an inclined state, which facilitates the sample to slide from the receiving cloth 402 into the collection box 404. When the sample falls on the receiving cloth 402, it will slide down along the inclined receiving cloth due to gravity and eventually fall into the collection box 404, which improves the efficiency of sample collection and reduces manual cleaning of the receiving cloth, saving manpower.

[0055] In a preferred embodiment, a limiting mechanism 5 is also included below the collecting mechanism 4. The limiting mechanism 5 includes a spring 501 fixedly connected to the bottom surface of the J-shaped frame 403. A pull member 502 is fixedly connected to one end of the spring 501 away from the J-shaped frame 403, and a limiting rod 503 sleeved inside the spring 501 is fixedly connected to one end of the pull member 502.

[0056] The end of the limiting rod 503 away from the pull member 502 is inserted into the limiting hole 505, which is located at the bottom of the collection box 404; and the limiting hole 505 is a blind hole, which is used for limiting.

[0057] The bottom of the J-shaped frame 403 is provided with a through circular hole 504, and the limiting rod 503 is slidably connected to the inside of the circular hole 504.

[0058] Working principle: First, under the control of the operating system, the drone entity 1 accurately locates the target tree based on the disease detection location using installed sensors or an external navigation system. After the drone flies to the target area, the structural support on the mounting plate 2 maintains the stability of the sampling device during flight, ensuring the accuracy of subsequent sampling operations. During sampling, the drone entity 1 first moves the splice cloth 402 close to the bottom of the diseased area on the trunk to prevent the sample brought out during drilling from falling into the gap between the trunk and the splice cloth 402. Then, the first motor 307 is started, driving the lead screw 303 to rotate. The outer surface of the lead screw 303 is threadedly connected to the slide plate 304. Through threaded transmission, the slide plate 304 moves along the inner wall of the square box 301, gradually bringing the sampling drill bit 306 on the mounting cylinder 311 closer to the target position.

[0059] The second motor 308 starts, driving the rotating shaft 309 to rotate, which in turn drives the sampling drill bit 306 in the mounting cylinder 311 to rotate at high speed, realizing the drilling operation on the target tree. The sample generated during the drilling process, such as wood chips, will fall onto the receiving cloth 402. The receiving cloth 402 is treated with anti-sticking to prevent the sample from sticking. The sample naturally slides into the collection box 404 under the action of the receiving cloth 402 tilting at an angle of 40°.

[0060] The collection box 404 is fixed inside the J-shaped frame 403 by a sliding connection, which facilitates the rapid classification and storage of samples. A handle 405 is provided at one end near the limiting mechanism 5, which makes it convenient for operators to take out or replace the collection box 404.

[0061] After the collection box 404 is placed inside the J-shaped frame 403, the round hole 504 and the limiting hole 505 are aligned, so that the limiting rod 503 can limit the collection box 404 and prevent it from loosening and slipping. The limiting hole 505 is a blind hole and its function is to limit. The round hole 504 is a through hole and its function is to allow the limiting rod 503 to slide stably within the round hole 504.

[0062] The limiting mechanism 5 consists of a spring 501, a limiting rod 503, a circular hole 504, and a limiting hole 505. The spring 501 connects the pull member 502 to the limiting rod 503. The end of the limiting rod 503 inserts into the limiting hole 505 on the collection box 404, thereby locking the collection box 404 during flight or operation to prevent the sample from slipping due to vibration or gravity. When it is necessary to remove the sample, the operator pulls the pull member 502 to disengage the limiting rod 503 from the limiting hole 505, allowing the collection box 404 to slide out of the J-shaped frame 403.

[0063] Ventilation openings are provided at the bottom of both the first motor protective cover 302 and the second motor cover 305 to ensure effective heat dissipation of the first motor 307 and the second motor 308 during long-term operation, and to prevent the motor performance from deteriorating or being damaged due to overheating.

[0064] After sampling is completed, the first motor 307 rotates in the opposite direction, driving the slide plate 304 to retract along the lead screw 303. The mounting cylinder 311 and the sampling drill bit 306 are reset to their initial positions. The above operation is repeated after the drone flies to the next target point. Through the above steps, this device realizes a complete process from drone positioning and drilling sampling to sample collection and protection.

[0065] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A sampling device for tree detection based on unmanned aerial vehicles (UAVs), characterized in that, include: The drone entity (1) has a mounting plate (2) fixedly installed on its front side. A sampling mechanism (3) is provided on the upper surface of the mounting plate (2), and a collection mechanism (4) is provided on the bottom surface of the mounting plate (2) below the sampling mechanism (3). The sampling mechanism (3) includes a square box (301) fixedly installed on the upper surface of the mounting plate (2). The square box (301) is provided with a positioning device and a sampling device connected thereto, wherein: The positioning device includes a first motor (307) that is fixedly connected to one side of the square box (301). A rotatable lead screw (303) is fixedly installed at the output end of the first motor (307). A sliding plate (304) is threaded onto the outer surface of the lead screw (303). The sampling device is fixedly connected to the positioning device in parallel via a sliding plate (304) that can slide along the inner wall of the box (301). A second motor (308) is fixedly installed on the side of the sliding plate (304) near the first motor (307). A rotating shaft (309) is fixedly installed at the output end of the second motor (308). The rotating shaft (309) can rotatably pass through the other side of the box (301). A drill bit device is fixedly installed at the protruding end of the rotating shaft (309). When the drone entity (1) moves to the location of the tree trunk to be sampled, the positioning device is activated to drive the sampling device. After approaching the location of the tree trunk to be sampled, drilling is performed and the sample to be tested falls into the collection mechanism (4).

2. The sampling device for tree detection based on unmanned aerial vehicles according to claim 1, characterized in that, The drill bit device includes: an installation cylinder (311) fixedly installed at one end of the rotating shaft (309) away from the second motor cover (305), and a sampling drill bit (306) is placed inside the installation cylinder (311) and fastened by screws (312).

3. The sampling device for tree detection based on unmanned aerial vehicles according to claim 2, characterized in that, A plug (310) is snapped onto the mounting cylinder (311) to waterproof and dustproof the screw (312).

4. The sampling device for tree detection based on unmanned aerial vehicles according to claim 1, characterized in that, The mounting plate (2) is provided with structural support, which includes a reinforced frame fixedly connected to the mounting plate to maintain the stability of the sampling device in flight; The reinforcing frame is made of aluminum alloy or carbon fiber.

5. The sampling device for tree detection based on unmanned aerial vehicles according to claim 1, characterized in that, The sampling mechanism (3) also includes a first motor cover (302) that houses the first motor (307) and a second motor cover (305) that houses the second motor (308). Ventilation openings are provided at the bottom of both the first motor cover (302) and the second motor cover (305) for heat dissipation of the motor.

6. The sampling device for tree detection based on unmanned aerial vehicles according to claim 1, characterized in that, The collection mechanism (4) includes a U-shaped frame (401) and a J-shaped frame (403) fixedly connected to the bottom surface of the mounting plate (2). A cloth receiving device (402) is fixedly installed on the inner side of the U-shaped frame (401). A collection box (404) is slidably connected inside the J-shaped frame (403). A handle (405) is fixedly connected to the side of the collection box (404) near the limiting mechanism (5).

7. The sampling device for tree detection based on unmanned aerial vehicles according to claim 6, characterized in that, The receiving cloth (402) is made of neoprene rubber, and its upper surface is provided with an anti-stick treatment to prevent the sample from sticking to the receiving cloth (402). At the same time, the angle of the receiving cloth (402) is set to an inclined state between 30° and 60°, so as to facilitate the sample to slide into the collection box (404).

8. The sampling device for tree detection based on unmanned aerial vehicles according to claim 6, characterized in that, It also includes a limiting mechanism (5) set below the collecting mechanism (4). The limiting mechanism (5) includes a spring (501) fixedly connected to the bottom surface of the J-shaped frame (403). A pull member (502) is fixedly connected to one end of the spring (501) away from the J-shaped frame (403). A limiting rod (503) sleeved in the spring (501) is fixedly connected to one end of the pull member (502). The end of the limiting rod (503) away from the pull piece (502) is inserted into the limiting hole (505). The limiting hole (505) is opened at the bottom of the collection box (404) and is a blind hole. Its function is to limit movement. The bottom of the J-shaped frame (403) is provided with a through round hole (504), and the limiting rod (503) is slidably connected to the inside of the round hole (504).

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