Intelligent image recognition device based on unmanned aerial vehicle and use method thereof

Abstract

The invention relates to the field of unmanned aerial vehicles, and discloses an intelligent image recognition device based on an unmanned aerial vehicle and a use method thereof.The intelligent image recognition device comprises an unmanned aerial vehicle body, vehicle arms arranged on the periphery of the unmanned aerial vehicle body and rotor wings arranged at the ends of the vehicle arms; stretching assemblies used for protecting the rotor wings in the landing state are arranged at the ends of the vehicle arms, each stretching assembly comprises a sliding rod movably connected to the inner side of the corresponding vehicle arm, and one end of each sliding rod extends to the exterior of the corresponding vehicle arm and is provided with a second protection plate. According to the intelligent image recognition device based on the unmanned aerial vehicle, the arranged extension assembly is matched with the telescopic rod and the pressure sensor which are arranged on the undercarriage, the telescopic rod can be contracted through self gravity when the device falls to the ground, then the pressure sensor is pressed, the driving mechanism is triggered to operate, and therefore the extension assembly is opened; the safety during take-off and landing is improved, the stretching assembly is retracted and hidden after take-off, the size is reduced, and the influence on airflow is reduced.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicles, and in particular, to an intelligent recognition device based on unmanned aerial vehicle images and a usage method thereof. Background Art

[0002] Currently, in order to cope with the collision risk in complex operation environments, some inspection unmanned aerial vehicles will add fixed protection structures (such as annular guard rings or mesh covers) outside the rotors. Such designs reduce the probability of direct contact between the rotors and obstacles through physical isolation, and at the same time improve the safety of personnel's close-range operation. However, the introduction of the protection structure will significantly increase the overall size and weight of the unmanned aerial vehicle, resulting in a decrease in aerodynamic efficiency, a shortening of the flight time, and a limitation of its maneuverability in narrow spaces (such as the gaps between photovoltaic panels and the equipment areas of booster stations). Therefore, another type of unmanned aerial vehicle chooses to cancel the rotor protection and optimize the flight performance through lightweight and compact design, but this also sacrifices the active protection ability of the rotors.

[0003] For unmanned aerial vehicles without rotor protection structures, when the rotors continue to rotate due to inertia after landing, the high-speed rotating exposed blades are likely to cause accidental injuries to personnel or surrounding equipment. Even when the rotors are stationary, the vulnerable blades exposed outside may still be damaged due to scraping, falling, or foreign object collision in complex terrains, affecting the execution of subsequent tasks. In addition, there are also safety hazards during the rotor acceleration process at the takeoff stage.

[0004] Therefore, there is an urgent need to develop an inspection unmanned aerial vehicle with dynamic protection capabilities, which can automatically deploy the rotor protection device during takeoff and landing, and retract it during flight to eliminate interference with aerodynamic efficiency, so as to achieve a dynamic balance between safety protection and flight performance. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects existing in the prior art. The present invention provides an intelligent recognition device based on unmanned aerial vehicle images and a usage method thereof, which solves the problems existing in the prior art in the background art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: An intelligent recognition device based on UAV images, including a UAV main body, arms arranged around the UAV main body, and rotors arranged at the ends of the arms; an extension component for protecting the rotors in the landing state is arranged at the end of the arm. The extension component includes a sliding rod movably connected to the inner side of the arm. One end of the sliding rod extends to the outside of the arm and is provided with a second protection plate. First protection plates are symmetrically and rotatably arranged at both ends of the second protection plate. A support rod is rotatably arranged at one end of the first protection plate away from the second protection plate. A sliding rack is movably arranged on the side wall of the sliding rod. A fixed rack corresponding to the sliding rack is arranged on the inner wall of the arm. A gear that is located between the sliding rack and the fixed rack and meshes with the sliding rack and the fixed rack is rotatably arranged on the side wall of the sliding rod. A connecting seat extending to the outside of the arm is arranged on the side wall of the sliding rack. One end of the support rod away from the first protection plate is rotatably connected to the connecting seat. A driving mechanism for driving the displacement of the sliding rod is arranged at the bottom of the UAV main body; a landing gear is arranged on the side of the UAV main body. An expansion rod is arranged between the upper end of the landing gear and the side of the UAV main body. A pressure sensor electrically connected to the driving mechanism is arranged at the upper end of the landing gear.

[0007] Preferably, the driving mechanism includes a bottom shell arranged at the bottom of the UAV main body. A turntable is rotatably arranged inside the bottom shell. A driving source for driving the rotation of the turntable is arranged on one side of the bottom shell. Second guide grooves that are arc-shaped and correspond to the arms one by one are uniformly arranged around the periphery of the turntable. A traction arm is movably connected to the outside of the bottom shell along the radial direction of the bottom shell. One end of the traction arm is provided with a second guide block that is movably matched with the second guide groove, and the other end extends to the inside of the arm and is connected to one end of the sliding rod.

[0008] Preferably, the driving source is a motor, and the motor is electrically connected to the pressure sensor.

[0009] Preferably, the first protection plate is of a hollow structure, and an opening is arranged at the upper end of the first protection plate. A secondary protection component is arranged inside the first protection plate. The secondary protection component includes a third protection plate vertically and movably connected to the inside of the first protection plate. An inclined first guide groove is arranged on the side wall of the third protection plate. A driving arm is movably connected to one end of the first protection plate. One end of the driving arm is provided with a first guide block for movably guiding and cooperating with the first guide groove. One side of the end of the second protection plate is provided with an extrusion piece corresponding to the end of the first protection plate. One end of the driving arm away from the first guide block extends to the outside of the first protection plate and corresponds to the extrusion piece.

[0010] Preferably, guide columns with a "T" cross-section are vertically arranged at both ends inside the first protection plate. The end of the third protection plate is movably sleeved outside the guide columns, and a first elastic member is arranged at the upper end of the guide columns.

[0011] Preferably, a roller for rolling cooperation with the side wall of the extrusion sheet is rotatably provided at one end of the driving arm away from the first guide block.

[0012] Preferably, a rotor motor for driving the rotation of the rotor is installed inside the end of the machine arm. A motor shaft is provided on the rotor motor, and both ends of the motor shaft protrude from the end of the rotor motor. The rotor is installed at the upper end of the motor shaft.

[0013] Preferably, a braking assembly is provided at one end of the sliding rod. The braking assembly includes a braking groove provided at one end of the sliding rod and corresponding to the motor shaft. The lower end of the motor shaft extends into the inner side of the braking groove. A recess is provided on the side wall of the inner cavity of the braking groove. A braking strip is movably connected to the recess. A second elastic member is provided between one side of the braking strip and the inner wall of the recess. A slope is provided at one end of the braking strip close to the second protective plate.

[0014] Preferably, the telescopic rod is a damping rod, and a buffer spring is sleeved outside the damping rod.

[0015] There is also an embodiment, specifically a usage method of an intelligent recognition device based on UAV images. It is implemented by using the intelligent recognition device based on UAV images and includes the following steps: S1: When the UAV body is in the air, the telescopic rod is in the extended state, the distance between the landing gear and the UAV body is the farthest, there is a gap between the pressure sensor and the side of the landing gear. At this time, the driving mechanism controls the extension assembly to hide on the side wall of the machine arm; S2: When the UAV body lands on the ground, the landing gear contacts the ground first and is pressed, so that the telescopic rod contracts, the pressure sensor contacts the side of the UAV body, the pressure sensor transmits a signal to the driving mechanism, and then the driving mechanism controls the extension assembly to extend and open to protect the rotor.

[0016] Compared with the prior art, the beneficial effects of the present invention include: For this intelligent recognition device based on UAV images, through the arranged extension assembly cooperating with the telescopic rod and the pressure sensor arranged on the landing gear, when it lands on the ground, the telescopic rod can be contracted by its own gravity, and then the pressure sensor is pressed and triggers the operation of the driving mechanism, so as to realize the opening of the extension assembly, increasing the safety during takeoff and landing. After takeoff, the extension assembly is retracted and hidden, reducing the volume and the influence on the airflow, being convenient to use. The setting of the secondary protection assembly can automatically rise when the extension assembly extends and opens, thus further enhancing the protection effect on the periphery of the rotor.

[0017] For this intelligent recognition device based on UAV images, through the arranged braking assembly, when the extension assembly extends and opens, pressure can be applied to the motor shaft, thereby increasing its resistance, and then accelerating the stop of the rotor. It is linked with the extension assembly, with a compact and ingenious structure, increasing the practicality. Description of the Drawings

[0018] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 Schematically shows a schematic structural diagram of the present invention; Figure 2 Schematically shows a schematic structural diagram of the bottom view of the present invention; Figure 3 Schematically shows a schematic structural diagram of the present invention in the deployed state of the first protective plate and the second protective plate; Figure 4 Schematically shows a schematic structural diagram of the present invention in the retracted and hidden state of the first protective plate and the second protective plate; Figure 5 Schematically shows a schematic top cross-sectional structural diagram of the arm of the present invention; Figure 6 Schematically shows the present invention Figure 5 Enlarged view at A; Figure 7 Schematically shows a schematic structural diagram of the present invention in the disassembled state of the first protective plate, the second protective plate and the third protective plate; Figure 8 Schematically shows a schematic structural diagram of the present invention in the separated state of the sliding rod and the rotor motor; Figure 9 Schematically shows the present invention Figure 8 Schematic structural diagram of the bottom view on the basis; Figure 10 Schematically shows a schematic top cross-sectional structural diagram of one end of the sliding rod of the present invention; Figure 11 Schematically shows a schematic structural diagram of the driving mechanism of the present invention in the disassembled state; Figure 12 Schematically shows a schematic structural diagram of the landing gear of the present invention.

[0019] Reference numerals in the figure: 1, UAV body; 2, landing gear; 3, arm; 4, rotor; 5, first protective plate; 6, second protective plate; 7, intelligent camera device; 8, bottom case; 9, support rod; 10, sliding rod; 11, rotor motor; 12, traction arm; 13, guide rail; 14, connecting seat; 15, sliding rack; 16, gear; 17, fixed rack; 18, driving arm; 19, first guide block; 20, first guide groove; 21, guide post; 22, first elastic member; 23, roller; 24, extrusion sheet; 25, braking groove; 26, motor shaft; 27, depression; 28, braking strip; 29, second elastic member; 30, inclined surface; 31, driving source; 32, second guide block; 33, second guide groove; 34, telescopic rod; 35, pressure sensor; 36, buffer spring; 37, turntable; 38, third protective plate. Detailed implementation manners

[0020] It is easily understandable that, according to the technical solution of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation manners without changing the essential spirit of the present invention. Therefore, the following specific embodiments and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0021] Combined with an embodiment of the present invention Figures 1 - 12 shown.

[0022] Such as Figures 1 - 6 、 Figures 11 - 12As shown in the figure, an intelligent recognition device based on UAV images includes a UAV main body 1, armrests 3 arranged around the UAV main body 1, and rotors 4 arranged at the ends of the armrests 3. One end of the bottom of the UAV main body 1 is provided with an intelligent camera device 7. The inner side of the end of the armrest 3 is installed with a rotor motor 11 for driving the rotation of the rotor 4. The rotor motor 11 is provided with a motor shaft 26, and the rotor 4 is installed at the upper end of the motor shaft 26. The side of the UAV main body 1 is provided with a landing gear 2. Different from the prior art, an extension assembly is provided at the end of the armrest 3 for protecting the rotor 4 in the landing state. As a preferred embodiment, the extension assembly includes a sliding rod 10 movably connected to the inner side of the lower end of the armrest 3. The sliding rod 10 is located at the bottom of the rotor motor 11. One end of the sliding rod 10 extends to the outside of the armrest 3 and is provided with a second protection plate 6 whose shape matches the end of the armrest 3. Arc-shaped first protection plates 5 are symmetrically rotatably arranged at both ends of the second protection plate 6. A support rod 9 is rotatably arranged at one end of the first protection plate 5 away from the second protection plate 6. The rotational connection can be achieved through pins, rotating shafts, etc. A sliding rack 15 is movably arranged on the side wall of the sliding rod 10. Specifically, a guide rail 13 is arranged on the side wall of the sliding rod 10, and the sliding rack 15 is slidably connected to the guide rail 13. A fixed rack 17 corresponding to the sliding rack 15 is installed on the inner wall of the armrest 3. A gear 16 meshing with the sliding rack 15 and the fixed rack 17 is rotatably arranged on the side wall of the sliding rod 10 between the sliding rack 15 and the fixed rack 17. A connecting seat 14 extending to the outside of the armrest 3 is arranged on the side wall of the sliding rack 15. One end of the support rod 9 away from the first protection plate 5 is rotatably connected to the connecting seat 14. The rotational connection can be achieved through pins, rotating shafts, etc. A driving mechanism for driving the displacement of the sliding rod 10 is arranged at the bottom of the UAV main body 1. As a preferred embodiment, the driving mechanism includes a bottom shell 8 arranged at the bottom of the UAV main body 1. A turntable 37 is rotatably arranged inside the bottom shell 8. A driving source 31 for driving the rotation of the turntable 37 is arranged on one side of the bottom shell 8. The driving source 31 is preferably a motor. Arc-shaped second guide grooves 33 corresponding to the armrests 3 one by one are evenly arranged around the periphery of the turntable 37. A traction arm 12 is movably connected to the outside of the bottom shell 8 along the radial direction of the bottom shell 8. One end of the traction arm 12 is provided with a second guide block 32 movably cooperating with the second guide groove 33, and the other end extends to the inside of the armrest 3 and is connected to one end of the sliding rod 10. Other driving devices capable of driving the displacement of the traction arm 12 can also be used for driving. In order to automatically trigger the protection mechanism when landing, a telescopic rod 34 is arranged between the upper end of the landing gear 2 and the side of the UAV main body 1. A pressure sensor 35 electrically connected to the driving mechanism is arranged at the upper end of the landing gear 2. When the pressure sensor 35 is pressed, it can transmit a signal to the driving source 31, and then the driving source 31 drives the turntable 37 to rotate.

[0023] Further, as Figure 3 、 Figure 7As shown in the figure, in order to enhance the protection effect, the first protection plate 5 is configured as a hollow structure, and an opening is provided at the upper end of the first protection plate 5. A third protection plate 38 is vertically movably connected to the inner side of the first protection plate 5. An inclined first guide groove 20 is provided on the side wall of the third protection plate 38. One end of the first protection plate 5 is movably connected to a driving arm 18. A first guide block 19 for movably guiding and cooperating with the first guide groove 20 is rotatably provided at one end of the driving arm 18. When the driving arm 18 displaces towards the inside of the first protection plate 5, the first guide block 19 can push the third protection plate 38 to rise through the first guide groove 20. On one side of the end of the second protection plate 6, there is an extrusion piece 24 corresponding to the end of the first protection plate 5. One end of the driving arm 18 away from the first guide block 19 extends to the outside of the first protection plate 5 and corresponds to the extrusion piece 24, and is configured such that when the first protection plate 5 is flipped open, one end of the driving arm 18 comes into contact with the extrusion piece 24. And in order to reduce the friction between the driving arm 18 and the extrusion piece 24, a roller 23 for rolling cooperation with the side wall of the extrusion piece 24 is rotatably provided at one end of the driving arm 18 away from the first guide block 19. In order to facilitate the falling and resetting of the third protection plate 38, guide posts 21 with a "T" - shaped cross - section are vertically provided at both ends of the inner side of the first protection plate 5. The end of the third protection plate 38 is movably sleeved outside the guide posts 21, and a first elastic member 22 is provided at the upper end of the guide posts 21. The first elastic member 22 is preferably a spring and is also sleeved outside the upper end of the guide posts 21, and is configured such that the first elastic member 22 can be compressed when the third protection plate 38 rises.

[0024] As Figures 8 - 10 shown, in order to accelerate the stopping of the rotor 4 when landing, the lower end of the motor shaft 26 is also set to protrude from the end of the rotor motor 11. A braking groove 25 corresponding to the motor shaft 26 is provided at one end of the sliding rod 10. The lower end of the motor shaft 26 extends into the inner side of the braking groove 25. A recess 27 is provided on the side wall of the inner cavity of the braking groove 25. A braking strip 28 is movably connected to the recess 27. One side of the braking strip 28 is used to come into contact with the motor shaft 26, thereby increasing the resistance of the motor shaft 26. A second elastic member 29 is provided between one side of the braking strip 28 and the inner wall of the recess 27. The second elastic member 29 is preferably a spring. A slope 30 is provided at one end of the braking strip 28 close to the second protection plate 6. The setting of the slope 30 facilitates the entry of the motor shaft 26 into the side of the braking strip 28.

[0025] As Figure 12 shown, as an embodiment of the present application, the telescopic rod 34 is set as a damping rod, and a buffer spring 36 is sleeved outside the damping rod. It can buffer the damage caused by rigid impact when landing, and the damping rod and the buffer spring 36 are configured such that when the rotor 4 completely stops, one end of the pressure sensor 35 is in contact with the side of the UAV body 1.

[0026] The present application also includes an embodiment, specifically a usage method of an intelligent recognition device based on UAV images, including the following steps: Step 1: When the UAV main body 1 is in the air, the telescopic rod 34 is in the extended state, the distance between the landing gear 2 and the UAV main body 1 is the farthest, and there is a gap between the pressure sensor 35 and the side of the landing gear 2. At this time, the driving mechanism controls the extension assembly to hide in the side wall of the arm 3; Step 2: When the UAV main body 1 lands back on the ground, the landing gear 2 contacts the ground first and is pressurized, so that the telescopic rod 34 contracts, and the pressure sensor 35 contacts the side of the UAV main body 1. The pressure sensor 35 transmits a signal to the driving mechanism, and then the driving mechanism controls the extension assembly to extend and open to protect the rotor 4.

[0027] The detailed working principle of the optimal embodiment of this application is as follows: When the UAV body 1 is in the air, under the action of the self-weight of the landing gear 2 and the reverse force of the buffer spring 36, the telescopic rod 34 is in the extended state. At this time, the distance between the landing gear 2 and the UAV body 1 is the largest, and the pressure sensor 35 is separated from the side of the UAV body 1. At this time, the third protection plate 38 is hidden in the first protection plate 5, and the first protection plate 5 and the second protection plate 6 are both attached and hidden on the side of the arm 3. When landing, the landing gear 2 contacts the ground first, and then the landing gear 2 is compressed. The telescopic rod 34 contracts, and the buffer spring 36 is compressed, which can play a buffering role and reduce the damage and vibration caused by rigid contact during landing. The distance between one end of the pressure sensor 35 and the side of the UAV body 1 decreases until contact occurs. Then, the pressure sensor 35 transmits a signal to the drive source 31, and the drive source 31 drives the turntable 37 to rotate. The turntable 37 drives the traction arm 12 to displace and extend outward through the cooperation of the second guide groove 33 and the second guide block 32. Then, the traction arm 12 drives the sliding rod 10 to displace outward, and the sliding rod 10 drives the sliding rack 15 and the gear 16 to displace synchronously. And because one side of the gear 16 meshes with the fixed rack 17, when the sliding rod 10 displaces, the sliding rack 15 will drive the connecting seat 14 to have a relative displacement with the sliding rod 10. Then, while the sliding rod 10 pushes the second protection plate 6 to move outward, the connecting seat 14 drives the first protection plate 5 to gradually unfold through the support rod 9 until the first protection plate 5 and the second protection plate 6 are displaced to the periphery of the rotor 4; when the sliding rod 10 displaces, the motor shaft 26 will gradually enter the side of the brake strip 28 through the inclined surface 30. The brake strip 28 compresses the second elastic member 29 under pressure, so that the brake strip 28 generates resistance to the motor shaft 26, thereby accelerating the stop of the motor shaft 26; in addition, when the first protection plate 5 gradually unfolds and opens, the roller 23 at one end of the driving arm 18 will contact the extrusion piece 24. As the first protection plate 5 flips and opens, the driving arm 18 displaces. The driving arm 18 drives the third protection plate 38 to rise through the cooperation of the first guide block 19 and the first guide groove 20, and the first elastic member 22 contracts. The third protection plate 38 rises above the rotor 4, thereby further increasing the protection effect and safety; when taking off again, the landing gear 2 gradually separates from the ground. It can actively control the operation of the drive source 31 through the terminal, or use the signal when the pressure sensor 35 is separated from the side of the UAV body 1 to automatically realize the operation of the drive source 31. Then, under the operation of the drive source 31, the traction arm 12 drives the sliding rod 10 to retract, the sliding rod 10 drives the second protection plate 6 to retract, the sliding rack 15 resets, and under the action of the first elastic member 22, the third protection plate 38 falls into the first protection plate 5 and is hidden. Subsequently, the first protection plate 5, the second protection plate 6, and the support rod 9 gradually retract and are hidden on the side of the arm 3. Then, the intelligent camera device 7 is used for inspection and camera operation.

[0028] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications shall fall within the protection scope of the present invention.

Claims

1. An intelligent recognition device based on UAV images, characterized in that, It includes a drone body, arms arranged around the drone body, and rotors arranged at the ends of the arms; an extension assembly for protecting the rotors in the landing state is arranged at the end of the arm. The extension assembly includes a sliding rod movably connected to the inner side of the arm. One end of the sliding rod extends to the outside of the arm and is provided with a second protection plate. First protection plates are symmetrically and rotatably arranged at both ends of the second protection plate. A support rod is rotatably arranged at one end of the first protection plate away from the second protection plate. A sliding rack is movably arranged on the side wall of the sliding rod. A fixed rack corresponding to the sliding rack is arranged on the inner wall of the arm. A gear that is located between the sliding rack and the fixed rack and meshes with the sliding rack and the fixed rack is rotatably arranged on the side wall of the sliding rod. A connecting seat extending to the outside of the arm is arranged on the side wall of the sliding rack. One end of the support rod away from the first protection plate is rotatably connected to the connecting seat. A driving mechanism for driving the displacement of the sliding rod is arranged at the bottom of the drone body; a landing gear is arranged on the side of the drone body. An expansion rod is arranged between the upper end of the landing gear and the side of the drone body. A pressure sensor electrically connected to the driving mechanism is arranged at the upper end of the landing gear.

2. The intelligent recognition device based on UAV images according to claim 1, wherein: The driving mechanism includes a bottom shell arranged at the bottom of the drone body. A turntable is rotatably arranged inside the bottom shell. A driving source for driving the rotation of the turntable is arranged on one side of the bottom shell. Second guide grooves that are arc-shaped and correspond to the arms one by one are evenly arranged around the periphery of the turntable. A traction arm is movably connected to the outside of the bottom shell along the radial direction of the bottom shell. One end of the traction arm is provided with a second guide block that movably cooperates with the second guide groove, and the other end extends to the inside of the arm and is connected to one end of the sliding rod.

3. The intelligent recognition device based on UAV images according to claim 2, wherein: The driving source is a motor, and the motor is electrically connected to the pressure sensor.

4. The intelligent recognition device based on UAV images according to claim 2, characterized in that: The first protection plate is of a hollow structure, and an opening is arranged at the upper end of the first protection plate. A secondary protection assembly is arranged inside the first protection plate. The secondary protection assembly includes a third protection plate vertically and movably connected to the inside of the first protection plate. An inclined first guide groove is arranged on the side wall of the third protection plate. A driving arm is movably connected to one end of the first protection plate. One end of the driving arm is provided with a first guide block for movably guiding and cooperating with the first guide groove. A pressing piece corresponding to the end of the first protection plate is arranged on one side of the end of the second protection plate. One end of the driving arm away from the first guide block extends to the outside of the first protection plate and corresponds to the pressing piece.

5. The intelligent recognition device based on UAV images according to claim 4, wherein: Guide columns with a "T" cross-section are vertically arranged at both ends inside the first protection plate. The end of the third protection plate is movably sleeved outside the guide columns, and a first elastic member is arranged at the upper end of the guide columns.

6. The intelligent recognition device based on UAV images according to claim 5, wherein: A roller for rolling cooperation with the side wall of the pressing piece is rotatably arranged at one end of the driving arm away from the first guide block.

7. The intelligent recognition device based on UAV images according to claim 1, characterized in that: A rotor motor for driving the rotation of the rotor is installed inside the end of the arm. A motor shaft is arranged on the rotor motor, and both ends of the motor shaft protrude from the end of the rotor motor. The rotor is installed at the upper end of the motor shaft.

8. An intelligent recognition device based on UAV images according to claim 7, characterized in that: One end of the sliding rod is provided with a braking assembly. The braking assembly includes a braking groove provided at one end of the sliding rod and corresponding to the motor shaft. The lower end of the motor shaft extends to the inside of the braking groove. A recess is provided on the side wall of the inner cavity of the braking groove. The recess is movably connected with a braking strip. A second elastic member is provided between one side of the braking strip and the inner wall of the recess. One end of the braking strip close to the second protective plate is provided with an inclined surface.

9. The intelligent recognition device based on UAV images according to claim 1, wherein: The telescopic rod is a damping rod, and a buffer spring is sleeved outside the damping rod.

10. A method of using an intelligent recognition device based on UAV images, implemented by using the intelligent recognition device based on UAV images according to any one of claims 1-9, characterized in that, It includes the following steps: S1: When the drone body is in the air, the telescopic rod is in the extended state, the distance between the landing gear and the drone body is the farthest, and there is a gap between the pressure sensor and the side of the landing gear. At this time, the driving mechanism controls the extension assembly to hide on the side wall of the arm; S2: When the drone body returns to the ground, the landing gear contacts the ground first and is pressed, so that the telescopic rod contracts, the pressure sensor contacts the side of the drone body, the pressure sensor transmits a signal to the driving mechanism, and then the driving mechanism controls the extension assembly to extend and open to protect the rotor.

Images