Forest land carbon reserve monitoring device based on unmanned aerial vehicle carrying

Abstract

The invention belongs to the technical field of measurement, and particularly relates to a forest land carbon reserve monitoring device carried by an unmanned aerial vehicle, which comprises a top connecting block, and flexible columns are fixedly connected to the corners of the periphery of the lower surface of the top connecting block. Flexible columns are arranged at the corners of the periphery of the joint of the top connecting block and the monitoring bin, springs are arranged in the flexible columns, a telescopic machine in the center of the lower surface is matched, a fixing structure dynamically adapting to external weather is formed, and in a daily windless environment, the flexible columns and the springs can buffer slight vibration during flight of the unmanned aerial vehicle through elasticity of the flexible columns and the springs; when a strong wind weather occurs, the telescopic machine is started, the telescopic column stretches into the fixing ring at the top of the monitoring bin, pushing of strong wind to the monitoring bin is counteracted, and equipment deviation is avoided. Through cooperative work of multiple structures, the monitoring reliability of the device under complex meteorological conditions can be improved, and accurate acquisition of data is ensured.

Description

Technical Field

[0001] This invention relates to the field of measurement technology, and in particular to a forest carbon storage monitoring device based on a drone. Background Technology

[0002] Against the backdrop of global climate change, forests, as the largest organic carbon sink in terrestrial ecosystems, require dynamic monitoring of their carbon storage as a crucial step in assessing ecosystem carbon sink functions and supporting scientific decision-making. Traditional forest carbon storage monitoring primarily relies on manual surveys of sample plots and transects, as well as model inversion. The former requires periodic felling of trees to measure biomass, which is time-consuming, labor-intensive, and ecologically damaging. The latter is limited by model assumptions and the accuracy of input parameters, making continuous, high-resolution dynamic monitoring difficult. In recent years, with the development of remote sensing technologies (such as satellite optical / radar remote sensing and UAV multispectral imaging) and IoT sensor networks, carbon storage monitoring devices based on in-situ observation and remote sensing collaboration have gradually emerged. By deploying equipment such as soil respiration sensors, canopy photosynthesis monitors, and trunk radial growth recorders, combined with meteorological station data, real-time estimation of forest carbon flux and carbon storage can be achieved.

[0003] Existing forest carbon storage monitoring devices mostly rely on electronic sensors and wireless communication modules. In complex forest environments, they are easily affected by external factors such as strong winds, leading to sensor drift, signal attenuation, or data loss, which directly affects the accuracy of carbon storage inversion results. Summary of the Invention

[0004] Based on the technical problems existing in the prior art, this invention proposes a forest carbon storage monitoring device based on UAV.

[0005] This invention proposes a UAV-based forest carbon storage monitoring device, comprising a top connecting block, with flexible columns fixedly connected to the four corners of the lower surface of the top connecting block. Flexible column springs are installed inside the flexible columns. An inclined fixing block is fixedly connected to the lower end of the flexible columns, and a rubber pad is installed on the inclined surface of the lower end of the inclined fixing block. A bottom monitoring chamber is installed at the lower end of the rubber pad. A top telescopic mechanism is installed through the center of the lower surface of the top connecting block, and a telescopic column is connected to the lower end of the top telescopic mechanism. A fixing ring is positioned at the center of the upper surface of the bottom monitoring chamber relative to the telescopic column, and an inner groove is formed inside the fixing ring. The device is used in forest areas monitored by the UAV. In the carbon storage monitoring device, flexible columns with internal springs are installed at the four corners of the connection between the top connecting block and the monitoring chamber. Together with the telescopic mechanism at the center of the lower surface, they form a fixed structure that dynamically adapts to external weather conditions. In normal windless conditions, the flexible columns and springs can buffer the slight vibrations of the drone during flight through their own elasticity, reducing the shaking of the monitoring chamber caused by airflow disturbances and ensuring the stability of sensor data. In windy weather, the telescopic mechanism is activated, and the telescopic columns are inserted into the fixing ring at the top of the monitoring chamber to counteract the pushing of the strong wind on the monitoring chamber and prevent the equipment from shifting. Through the coordinated work of multiple structures, the monitoring reliability of the device under complex weather conditions can be improved, ensuring accurate data collection.

[0006] Preferably, a fixing plate is installed on the upper surface of the top connecting block near the left and right edges. A protrusion is fixedly connected to the lower end of the fixing plate. A rubber ring is provided on the inner surface of the upper surface of the top connecting block relative to the position of the protrusion. The fixing plate and the rubber ring on the upper surface of the top connecting block in the device can fit and fix the device to the landing gear at the bottom of the UAV, increasing the contact area and distributing the weight of the monitoring cabin more evenly. At the same time, the rubber ring can form an elastic buffer layer between the fixing plate and the UAV's landing gear. The impact generated during flight or take-off and landing will be absorbed by the rubber ring. The fixing plate strengthens the rigidity of the connection, and the elasticity of the rubber ring also provides flexible shock absorption, so that the connection between the monitoring cabin and the UAV remains stable throughout the flight, improving the reliability of the equipment in complex operating environments.

[0007] Preferably, the front and rear surfaces of the bottom monitoring chamber are provided with honeycomb-shaped ventilation nets. The honeycomb structure and the distribution of holes in the honeycomb structure can ensure smooth airflow and, to a certain extent, intercept suspended particles in the air, reducing dust from entering the chamber and adhering to the surface of electronic components, thus avoiding dust accumulation that could affect the sensitivity of the equipment. During flight, the external airflow passes through the natural flow path formed by the front and rear ventilation nets, ensuring that the heat inside the monitoring chamber can be dissipated, alleviating the overheating problem of the equipment, and maintaining the stable state of key components.

[0008] Preferably, the bottom monitoring chamber has legs fixedly connected to the four corners of its lower surface. Leg springs are installed inside the legs, and a connecting plate is fixedly connected to the lower end of each leg spring. A pressure column extends from the center of the lower surface of the connecting plate to the lower end of the leg, and a foot is installed at the lower end of the pressure column. These legs, with springs inside, act as a support structure, lifting the monitoring chamber a certain height off the ground when the drone lands or temporarily stops. This prevents precision components such as sensors from directly contacting rocks, tree roots, or soft, wet soil, reducing the risk of scratches and compression. The springs inside the legs absorb impact energy through compression or rebound, reducing the transmission of vibration into the monitoring chamber and preventing data acquisition interruptions or parameter deviations caused by severe vibrations. This enhances the device's adaptability to uneven ground, protects the long-term reliability of core equipment through vibration reduction, and improves the stability of monitoring operations and the equipment's lifespan.

[0009] Preferably, the lower surface of the support leg is provided with a rubber block. Rubber blocks are provided on the lower surface of the support legs located at the four corners of the lower surface of the monitoring chamber. This improves the landing stability and protective performance of the equipment in complex forest environments. The elastic material of the rubber can absorb the impact energy at the moment of contact with the ground, alleviate the vertical vibration during landing, and avoid damage to the equipment inside the chamber from violent collisions. At the same time, the frictional properties of the rubber surface can increase the adhesion between the device and the ground, and prevent the device from sliding and deviating in wet and slippery environments.

[0010] Preferably, a magnetic block is installed at the center of the lower surface of the bottom monitoring chamber, and a transparent cover is provided at the lower end of the magnetic block. An openable transparent cover is provided outside the monitoring head and connected by a magnet. When the transparent cover covers the outside of the monitoring head, it can effectively block dust, fallen leaves and other debris in the air from adhering, avoiding these contaminants from obscuring the sensor lens and reducing data errors caused by lens blur. The magnetic connection ensures that the device can be easily pulled off when in use without additional tools, and can be magnetically fixed when not in use, which is both stable and prevents loss, extending the service life of precision components.

[0011] Preferably, a bottom telescopic mechanism is installed inside the transparent cover at the center of the lower surface of the bottom monitoring chamber. A telescopic probe is installed at the lower end of the bottom telescopic mechanism, and a monitoring head is installed at the lower end of the telescopic probe. By placing the monitoring head at the center of the lower surface of the monitoring chamber and installing the telescopic mechanism on its upper end, the vertical distance between the monitoring head and the vegetation below is kept consistent, avoiding observation angle deviations caused by drone flight deviations or terrain undulations. The upper telescopic mechanism can improve the dynamic adjustment capability of the monitoring head, flexibly adjusting the height of the monitoring head through telescopic movements. This avoids the sensor being blocked by dense vegetation and allows for closer proximity to the target vegetation layer to obtain clearer signals, ensuring that the relative position of the monitoring head and the monitoring surface remains stable, thereby improving the reliability and data quality of carbon storage monitoring.

[0012] Preferably, the outer side surface of the inclined fixing block is provided with an inclined fixing block screw, and the interior of the inclined fixing block is provided with an inclined fixing block screw hole corresponding to the position of the inclined fixing block screw. The connection between the top connecting block and the monitoring compartment is made by screw connection. During flight, it can resist the risk of loosening caused by airflow disturbance and vibration, ensure the connection reliability between the monitoring compartment and the main body of the UAV, and avoid sensor offset or data error caused by unstable connection. At the same time, when replacing the two parts of the device, the screw can be rotated to quickly complete the disassembly and reassembly, which is more practical in complex field operation environment.

[0013] Preferably, a flexible ring is installed at the lower circumferential edge of the telescopic column. Setting a flexible ring at the lower circumferential edge of the telescopic column can ensure that when the top connecting block and the bottom monitoring chamber are connected through the telescopic column, the collision during rigid contact is reduced, the wear between components is reduced, and the service life of the overall device is extended.

[0014] Preferably, the upper left and right sides of the bottom monitoring chamber have corresponding oblique fixing block screw positions on the oblique surfaces, and the oblique surfaces of the bottom monitoring chamber have corresponding screw holes for the fixing block screws, which facilitates the operator to quickly connect and install the two parts of the structure and improves the convenience of the device during use.

[0015] Compared with existing technologies, the present invention provides a forest carbon storage monitoring device based on a drone, which has the following beneficial effects: 1. In the forest carbon storage monitoring device carried by the UAV, flexible columns with springs installed at the four corners of the connection between the top connecting block and the monitoring chamber, together with the telescopic mechanism at the center of the lower surface, form a fixed structure that dynamically adapts to external weather conditions. In normal windless conditions, the flexible columns and springs can buffer the slight vibrations of the UAV during flight through their own elasticity, reduce the shaking of the monitoring chamber caused by airflow disturbances, and ensure the stability of sensor data. In windy weather, the telescopic mechanism is activated and the telescopic columns are inserted into the fixing ring at the top of the monitoring chamber to counteract the pushing of the strong wind on the monitoring chamber and prevent the equipment from shifting. Through the coordinated work of multiple structures, the monitoring reliability of the device under complex weather conditions can be improved, ensuring accurate data collection.

[0016] 2. A honeycomb ventilation mesh is installed on the front and rear surfaces of the monitoring chamber. The distribution of holes in the honeycomb structure can ensure smooth airflow and, to a certain extent, intercept suspended particles in the air, reducing dust from entering the chamber and adhering to the surface of electronic components, thus preventing dust accumulation from affecting the sensitivity of the equipment. During flight, the external airflow passes through the natural flow path formed by the front and rear ventilation mesh, ensuring that the heat inside the monitoring chamber can be dissipated, alleviating the equipment overheating problem, and maintaining the stable state of key components.

[0017] 3. A fixing plate and a rubber ring are used on the upper surface of the top connecting block in the device. The fixing plate can fit and fix the device to the landing gear at the bottom of the UAV, increasing the contact area and distributing the weight of the monitoring cabin more evenly. At the same time, the rubber ring can form an elastic buffer layer between the fixing plate and the UAV's landing gear. The impact generated during flight or take-off and landing will be absorbed by the rubber ring. The fixing plate strengthens the rigidity of the connection, and the elasticity of the rubber ring also provides flexible shock absorption, so that the connection between the monitoring cabin and the UAV remains stable throughout the flight, improving the reliability of the equipment in complex operating environments.

[0018] 4. A monitoring head is installed at the center of the lower surface of the monitoring chamber, and a telescopic mechanism is installed on its upper end. Placing the monitoring head in the center position ensures that its vertical distance from the vegetation below remains consistent, avoiding observation angle deviations caused by drone flight deviations or terrain undulations. The telescopic mechanism at the upper end can improve the dynamic adjustment capability of the monitoring head. By flexibly adjusting the height of the monitoring head through telescopic movement, it can avoid the sensor being blocked by dense vegetation, and can get closer to the target vegetation layer to obtain clearer signals. This ensures that the relative position of the monitoring head and the monitoring surface remains stable, improving the reliability and data quality of carbon storage monitoring.

[0019] 5. A switchable transparent cover is installed on the outside of the monitoring head and connected by a magnet. When the transparent cover covers the outside of the monitoring head, it can effectively block dust, fallen leaves and other debris in the air from adhering, preventing these contaminants from obscuring the sensor lens and reducing data errors caused by lens blur. The magnetic connection ensures that the device can be easily pulled off when in use without additional tools, and can be magnetically fixed when not in use, which is both secure and prevents loss, extending the service life of precision components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the forest carbon storage monitoring device based on a drone proposed in this invention. Figure 2 This is a top view of the overall structure of the forest carbon storage monitoring device based on an unmanned aerial vehicle (UAV) proposed in this invention. Figure 3 This is a schematic diagram of the transparent cover structure of the forest carbon storage monitoring device based on a drone proposed in this invention; Figure 4 This is an enlarged view of the internal structure of the flexible column of the forest carbon storage monitoring device based on a drone proposed in this invention; Figure 5 This is a schematic diagram of the support leg structure of the forest carbon storage monitoring device based on a drone proposed in this invention; Figure 6 This is a top view of the bottom monitoring chamber of the forest carbon storage monitoring device based on an unmanned aerial vehicle (UAV) proposed in this invention; Figure 7This is a top view of the top connecting block of the forest carbon storage monitoring device based on a drone proposed in this invention.

[0021] In the diagram: 1. Top connecting block; 2. Slanted fixing block; 3. Rubber pad; 4. Bottom monitoring chamber; 5. Honeycomb ventilation net; 6. Support leg; 7. Rubber ring; 8. Protrusion; 9. Fixing plate; 10. Transparent cover; 11. Slanted fixing block screw; 12. Flexible column; 13. Magnetic block; 14. Telescopic probe; 15. Bottom telescopic mechanism; 16. Monitoring head; 17. Flexible column spring; 18. Support leg spring; 19. Connecting plate; 20. Support foot; 21. Rubber block; 22. Pressure column; 23. Fixing ring; 24. Inner groove of ring; 25. Fixing screw hole of monitoring chamber; 26. Top telescopic mechanism; 27. Telescopic column; 28. Flexible ring; 29. ​​Slanted fixing block screw hole. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Reference Figure 1-7The forest carbon storage monitoring device based on a drone includes a top connecting block 1. Flexible columns 12 are fixedly connected to the four corners of the lower surface of the top connecting block 1. Flexible column springs 17 are installed inside the flexible columns 12. An inclined fixing block 2 is fixedly connected to the lower end of the flexible column 12. A rubber pad 3 is installed on the inclined surface of the lower end of the inclined fixing block 2. A bottom monitoring chamber 4 is installed at the lower end of the rubber pad 3. A top telescopic mechanism 26 is installed through the center of the lower surface of the top connecting block 1. A telescopic column 27 is connected to the lower end of the top telescopic mechanism 26. A fixing ring 23 is set at the center of the upper surface of the bottom monitoring chamber 4 relative to the telescopic column 27. An inner groove 24 is opened inside the fixing ring 23. The device is used by the drone... The forest carbon storage monitoring device features flexible columns at the four corners of the connection between the top connecting block and the monitoring chamber, with springs inside. Together with the telescopic mechanism at the center of the lower surface, these columns form a fixed structure that dynamically adapts to external weather conditions. In calm weather, the flexible columns and springs cushion the slight vibrations during drone flight, reducing the swaying of the monitoring chamber caused by airflow disturbances and ensuring the stability of sensor data. In windy weather, the telescopic mechanism activates, extending the telescopic columns into the fixing ring at the top of the monitoring chamber to counteract the strong winds pushing the chamber and prevent equipment displacement. Through the coordinated work of these multiple structures, the device's monitoring reliability under complex weather conditions is improved, ensuring accurate data collection.

[0025] Furthermore, a fixing plate 9 is installed on the upper surface of the top connecting block 1 near the left and right edges. A protrusion 8 is fixedly connected to the lower end of the fixing plate 9. A rubber ring 7 is set inside the upper surface of the top connecting block 1 relative to the position of the protrusion 8. The fixing plate and rubber ring are used on the upper surface of the top connecting block in the device. The fixing plate can fit and fix the device to the landing gear at the bottom of the UAV, increasing the contact area and distributing the weight of the monitoring cabin more evenly. At the same time, the rubber ring can form an elastic buffer layer between the fixing plate and the UAV's landing gear. The impact generated during flight or take-off and landing will be absorbed by the rubber ring. The fixing plate strengthens the rigidity of the connection, and the elasticity of the rubber ring also provides flexible shock absorption, so that the connection between the monitoring cabin and the UAV remains stable throughout the flight, improving the reliability of the equipment in complex operating environments.

[0026] Furthermore, the front and rear surfaces of the bottom monitoring chamber 4 are provided with honeycomb-shaped ventilation nets 5. The honeycomb structure and the distribution of holes in the honeycomb structure can ensure smooth airflow and, to a certain extent, intercept suspended particles in the air, reducing dust from entering the chamber and adhering to the surface of electronic components, thus avoiding dust accumulation that could affect the sensitivity of the equipment. During flight, the external airflow passes through the natural flow path formed by the front and rear ventilation nets, ensuring that the heat inside the monitoring chamber can be dissipated, alleviating the overheating problem of the equipment, and maintaining the stable state of key components.

[0027] In one embodiment, support legs 6 are fixedly connected to the four corners of the lower surface of the bottom monitoring chamber 4. Support legs 6 are installed inside the support legs 6. Support legs 18 are fixedly connected to the lower end of the support legs 18. A connecting plate 19 is fixedly connected to the lower end of the lower surface of the connecting plate 19 through the center to the lower end of the support legs 6. A pressure column 22 is connected to the lower end of the pressure column 22. Support feet 20 are installed at the lower end of the pressure column 22. The support legs set at the four corners of the lower surface of the monitoring chamber and the springs installed inside them serve as a support structure. When the UAV lands or temporarily stops, the support legs can lift the monitoring chamber off the ground to a certain height, avoiding direct contact between the sensors and other precision components and the rocks, tree roots or wet mud on the ground, reducing the risk of scratches and squeezing. The springs inside the support legs can absorb impact energy through compression or rebound, reducing the transmission of vibration to the monitoring chamber, preventing the sensors from interrupting data acquisition or causing parameter deviations due to severe vibration, enhancing the adaptability of the device on uneven ground, protecting the long-term reliability of the core equipment through shock absorption, and improving the stability of monitoring operations and the service life of the equipment.

[0028] In one embodiment, rubber blocks 21 are provided on the lower surface of the support legs 20. Rubber blocks are provided on the lower surface of the support legs located at the four corners of the lower surface of the monitoring chamber to improve the landing stability and protection performance of the equipment in complex forest environments. The elastic material of the rubber can absorb the impact energy at the moment of contact with the ground, alleviate the vertical vibration during landing, and avoid damage to the equipment inside the chamber from violent collisions. At the same time, the frictional properties of the rubber surface can increase the adhesion between the device and the ground, and prevent the device from sliding and deviating in wet and slippery environments.

[0029] In another embodiment, a magnetic block 13 is installed at the center of the lower surface of the bottom monitoring chamber 4. A transparent cover 10 is provided at the lower end of the magnetic block 13. An openable transparent cover is provided outside the monitoring head and connected by a magnet. When the transparent cover covers the outside of the monitoring head, it can effectively block dust, fallen leaves and other debris in the air from adhering, avoid these contaminants from obscuring the sensor lens, and reduce data errors caused by lens blur. The magnetic connection ensures that the device can be easily removed by pulling when in use without additional tools. When not in use, it can be magnetically fixed, which is both stable and prevents loss, thus extending the service life of precision components.

[0030] Furthermore, a bottom telescopic mechanism 15 is installed inside the transparent cover 10 at the center of the lower surface of the bottom monitoring chamber 4. A telescopic probe 14 is installed at the lower end of the bottom telescopic mechanism 15, and a monitoring head 16 is installed at the lower end of the telescopic probe 14. By placing the monitoring head at the center of the lower surface of the monitoring chamber and installing the telescopic mechanism on its upper end, the vertical distance between the monitoring head and the vegetation below can be kept consistent, avoiding the deviation of the observation angle caused by the flight deviation of the UAV or the undulation of the terrain. The telescopic mechanism at the upper end can improve the dynamic adjustment capability of the monitoring head. The height of the monitoring head can be flexibly adjusted by telescopic movement, which can avoid the sensor being blocked by dense vegetation, and can get a clearer signal by getting close to the target vegetation layer. This ensures that the relative position of the monitoring head and the monitoring surface remains stable, improving the reliability and data quality of carbon storage monitoring.

[0031] In another embodiment, the outer side surface of the inclined fixing block 2 is provided with an inclined fixing block screw 11, and the interior of the inclined fixing block 2 is provided with an inclined fixing block screw hole 29 corresponding to the position of the inclined fixing block screw 11. The connection between the top connecting block and the monitoring compartment is made by screw connection, which can resist the risk of loosening caused by airflow disturbance and vibration during flight, ensure the reliability of the connection between the monitoring compartment and the main body of the UAV, and avoid sensor offset or data error caused by unstable connection. At the same time, when replacing the two parts of the device, the screw can be rotated to quickly complete the disassembly and reassembly, which is more practical in complex field operation environment.

[0032] In one embodiment, a flexible ring 28 is installed at the lower circumferential edge of the telescopic column 27. The flexible ring at the lower circumferential edge of the telescopic column can ensure that when the top connecting block and the bottom monitoring chamber are connected by the telescopic column, the collision during rigid contact is reduced, the wear between components is reduced, and the service life of the overall device is extended.

[0033] In another embodiment, the upper left and right sides of the bottom monitoring chamber 4 are provided with monitoring chamber fixing screw holes 25 corresponding to the positions of the inclined fixing block screws 11. The screw holes corresponding to the fixing block screws are provided on the inclined surface of the bottom monitoring chamber, which facilitates the operator to quickly connect and install the two parts of the structure and improves the convenience of the device during use.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A forest carbon storage monitoring device based on a UAV, comprising a top connecting block (1), characterized in that, The lower surface of the top connecting block (1) is fixedly connected with flexible columns (12) at the corners of the periphery, the inside of the flexible columns (12) is provided with flexible column springs (17), the lower end of the flexible columns (12) is fixedly connected with inclined fixing blocks (2), the lower end of the inclined fixing blocks (2) is provided with rubber pads (3) on the inclined surface, the lower end of the rubber pads (3) is provided with a bottom monitoring bin (4), the center of the lower surface of the top connecting block (1) is provided with a top telescopic machine (26), the lower end of the top telescopic machine (26) is connected with a telescopic column (27), the upper surface of the bottom monitoring bin (4) is provided with a fixed ring (23) at the center position relative to the position of the telescopic column (27), and the inside of the fixed ring (23) is provided with a ring inner groove (24). 2.The unmanned aerial vehicle (UAV) -borne forest carbon stock monitoring device according to claim 1, wherein, The upper surface of the top connecting block (1) is provided with a fixed plate (9) near the edges of the left and right ends, the lower end of the fixed plate (9) is fixedly connected with a protruding block (8), and the upper surface of the top connecting block (1) is provided with a rubber ring (7) at the position opposite to the protruding block (8). 3.The UAV-mounted forest carbon stock monitoring device according to claim 1, wherein, The front and rear surfaces of the bottom monitoring bin (4) are provided with honeycomb wind nets (5). 4.The UAV-mounted forest carbon stock monitoring device according to claim 1, wherein, The lower surface of the bottom monitoring bin (4) is fixedly connected with supporting legs (6) at the corners of the periphery, the inside of the supporting legs (6) is provided with supporting leg springs (18), the lower end of the supporting leg springs (18) is fixedly connected with a connecting plate (19), the center of the lower surface of the connecting plate (19) is provided with a pressure column (22) penetrating to the outside lower end of the supporting leg (6), and the lower end of the pressure column (22) is provided with supporting feet (20). 5.The UAV-mounted forest carbon stock monitoring device according to claim 4, wherein, The lower surface of the supporting feet (20) is provided with rubber blocks (21). 6.The UAV-mounted forest carbon stock monitoring device according to claim 1, wherein, The center of the lower surface of the bottom monitoring bin (4) is provided with a magnetic block (13), and the lower end of the magnetic block (13) is provided with a transparent cover (10).

7. The UAV-mounted forest carbon stock monitoring device of claim 6, wherein, The inside of the transparent cover (10) is provided with a bottom telescopic machine (15) at the center of the lower surface of the bottom monitoring bin (4), the lower end of the bottom telescopic machine (15) is provided with a telescopic probe rod (14), and the lower end of the telescopic probe rod (14) is provided with a monitoring head (16). 8.The UAV-mounted forest carbon stock monitoring device according to claim 1, wherein, The outer side surface of the inclined fixing block (2) is provided with an inclined fixing block screw (11), and the inside of the inclined fixing block (2) is provided with an inclined fixing block screw hole (29) corresponding to the position of the inclined fixing block screw (11). 9.The UAV-mounted forest carbon stock monitoring device according to claim 1, wherein, The lower end of the telescopic column (27) is provided with a flexible ring (28) at the circumferential edge. 10.The UAV-mounted forest carbon stock monitoring device according to claim 1, wherein, The upper end of the bottom monitoring bin (4) is provided with monitoring bin fixed screw holes (25) on the inclined surfaces of the left and right sides corresponding to the positions of the inclined fixing block screws (11).

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