An unmanned aerial vehicle data link electromagnetic interference situation prediction method and device

Abstract

The application relates to the technical field of unmanned aerial vehicle data link electromagnetic interference situation monitoring, in particular to an unmanned aerial vehicle data link electromagnetic interference situation prediction method and device, which comprises an unmanned aerial vehicle body, a magnetic protection ring, a magnetic protection cover and a magnetic induction module. Resistance wires or graphene heating films are embedded in the propeller root and the wing leading edge and the like easy icing areas, the wing blade is improved, and a heating assembly is added, so that the anti-interference and anti-freezing capacity of the rotor is improved, the spherical protection measure is adopted, the adhesion area of rain, snow or ice and the anti-electromagnetic interference performance of the unmanned aerial vehicle itself are reduced, through the use of the elastic skin, the rain, snow or ice residues are actively reduced, and the ice layer in the solidified state is broken from the inside to the outside through the passive local expansion effect, so that the removal operation of the ice and snow on the surface of the unmanned aerial vehicle is further realized.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic interference situation monitoring technology for UAV data links, specifically a method and device for predicting electromagnetic interference situation of UAV data links. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or aircraft operated autonomously, either fully or intermittently, by onboard computers. Compared to manned aircraft, UAVs are often better suited for tasks that are too "dull, dirty, or dangerous."

[0003] Drones can be categorized into military and civilian applications. In the military sector, drones are divided into reconnaissance drones and target drones. In the civilian sector, the real demand for drones lies in industry-specific applications; their use in aerial photography, agriculture, plant protection, miniature selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying, news reporting, power line inspection, disaster relief, film and television production, and even creating romantic scenes, greatly expands the applications of drones.

[0004] High-voltage line inspection is a crucial step in ensuring the safe operation of the power grid. Traditional manual inspection methods are inefficient, costly, and pose safety hazards, especially in winter when line icing is severe, making manual de-icing difficult and risky. In recent years, drone technology has been increasingly applied to power line inspection, and its high efficiency, safety, and flexibility have significantly improved inspection efficiency. However, drones still face the following technical challenges in high-voltage line inspection:

[0005] Rain and snow freezing issues: In winter rain and snow, the drone's fuselage and sensors are prone to icing, which leads to a decrease in flight performance and may even cause crashes, limiting its application in harsh environments. In addition, when drones are inspecting high-voltage power transmission lines, they are often in a slow flight or hovering state, which undoubtedly increases the accumulation and adhesion of rain, snow or ice.

[0006] Electromagnetic interference: Strong electromagnetic fields exist around high-voltage lines, which may interfere with the drone's navigation system and communication links, leading to flight loss or data loss and affecting the completion of inspection tasks.

[0007] To address the aforementioned issues, existing technologies lack systematic solutions and cannot fully leverage the advantages of drones in high-voltage line inspection and winter de-icing. Therefore, there is an urgent need for drone technology capable of effectively coping with electromagnetic interference and snow / rain freezing to achieve efficient and safe inspection and de-icing operations for high-voltage lines.

[0008] In view of this, the present invention proposes a method and device for predicting electromagnetic interference situation of UAV data links, which solves the above-mentioned technical problems. Summary of the Invention

[0009] The purpose of this invention is to provide a method and apparatus for predicting electromagnetic interference situations in UAV data links, thereby solving the problems existing in the prior art.

[0010] The technical solution adopted by the present invention to solve its technical problem is an electromagnetic interference situation prediction device for UAV data link, including UAV body, magnetic protective ring, magnetic protective cover and magnetic induction module. The UAV body is provided with wing rods for mounting rotors around its perimeter, and the magnetic protective ring is fixedly mounted on the wing rods.

[0011] The magnetic protective cover is fixedly installed above the magnetic protective ring, and the control module of the UAV body is located inside the magnetic protective cover. A copper braided mesh is pre-installed inside the magnetic protective cover.

[0012] The magnetic induction module is fixedly installed on the upper inner side of the magnetic protective cover.

[0013] Furthermore, this invention also provides a method for predicting electromagnetic interference situations in UAV data links, the method comprising the following steps:

[0014] S1. Operational Check: During the flight of the UAV, the data link status changes continuously and dynamically, and the working signal power received by the airborne antenna changes constantly. At this time, the magnetic induction module monitors and senses the surrounding magnetic induction status to determine the electromagnetic interference situation of the UAV data link.

[0015] S2. Active shielding: Actively reduces or isolates the negative impact of external electromagnetic interference on the UAV flight data link through the electromagnetic shielding effect of magnetic shielding covers and magnetic shielding plates.

[0016] S3. Environmental Adaptation: In specific natural environments, the micro motor and winding device are activated to rotate the bonding wires onto the outer curved surface of the magnetic shield, causing the magnetic shield to flip and operate. This reduces or eliminates the problem of increased flight drag and decreased electromagnetic interference resistance caused by the constraints of the natural environment on the UAV body.

[0017] The beneficial effects of this invention are:

[0018] (1) The present invention embeds resistance wires or graphene heating films in areas prone to icing, such as the root of the propeller and the leading edge of the wing, and heats them periodically by means of battery power. It adopts a tilted blade and smooth curved surface design. By improving the blades and adding heating components, the anti-interference and anti-freezing capabilities of the rotor are improved, thereby enhancing the flight performance of the UAV.

[0019] (2) The present invention adopts spherical protective measures to reduce the adhesion area and adhesion strength of rain, snow or ice. By using elastic skin, while actively reducing the adhesion of rain, snow or ice residue, it can also break the ice layer in the solidified state from the inside out through its passive local expansion effect, thereby further realizing the removal of ice and snow on the surface of the UAV.

[0020] (3) The present invention forms a complete magnetic interference shielding shield for the UAV fuselage and its internal data link transmission components by means of a magnetic shielding shield, a magnetic shielding ring and a transition ring. A dynamically foldable magnetic shielding plate is set at the bottom to achieve dynamic shielding protection when the direction of magnetic interference changes during the flight of the UAV, thereby further enhancing the anti-magnetic interference capability of the UAV. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the first flight state of the UAV in this invention; Figure 2 for Figure 1 The main view; Figure 3 This is a schematic diagram of the second flight state of the UAV in this invention; Figure 4 for Figure 3 The main view in the middle; Figure 5 This is a schematic diagram showing the positional relationship between the magnetic protective shield and the drone fuselage in this invention; Figure 6 for Figure 5 Enlarged diagram of point A in the diagram; Figure 7 for Figure 5 Enlarged diagram of point B in the image; Figure 8 for Figure 5 Enlarged diagram of point C in the diagram; Figure 9 This is a schematic diagram showing the positional relationship between the magnetic protection ring and the transition ring in this invention; Figure 10 for Figure 9 Enlarged diagram of point D in the diagram; In the picture: 1. Unmanned Aerial Vehicle (UAV); 2. Magnetic Protective Ring; 3. Magnetic Protective Cover; 31. Copper Braided Mesh; 4. Magnetic Induction Module; 5. Rotor; 51. Heating Film; 6. Landing Gear; 61. Folding Wing; 62. Torsion Spring; 63. Magnetic Protective Plate; 64. Tension Spring; 65. Metal Mesh; 66. Carbon Brush; 7. Suspension Part; 71. Rod-shaped Body; 8. Winder; 81. Winding Belt; 611. Outer Column; 612. Notched Ring; 9. Transition Ring; 32. Top Cover; 33. Tension Column; 91. Adhesive Wire; 92. Meshing Gear; 21. Micro Motor; 22. Gear; 34. Skin; 35. Airbag; 36. Air Chamber; 37. Pressure Block. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 10 As shown, a preferred embodiment of the present invention proposes an electromagnetic interference situation prediction device for a UAV data link, including a UAV body, a magnetic protective ring 2, a magnetic protective cover 3, and a magnetic induction module 4. The UAV body is provided with wing rods for mounting rotors 5 around its perimeter. The magnetic protective ring 2 is fixedly mounted on the wing rods. Sensors such as cameras and LiDAR are provided below the UAV 1. Combined with GPS, inertial navigation IMU, visual positioning optical flow camera, and LiDAR, it ensures stable positioning even when GPS is interfered with.

[0025] Both the magnetic protective ring 2 and the magnetic protective cover 3 are detachable structures.

[0026] like Figure 5 and Figure 6 As shown, the magnetic shield 3 is fixedly installed above the magnetic shield ring 2, and the control module of the UAV 1 is located inside the magnetic shield 3. A copper braided mesh 31 is pre-installed inside the magnetic shield 3. The metal material is used to form a multi-directional magnetic interference shield to reduce the interference of the data link of the UAV 1 during flight. The copper braided mesh 31 inside forms a Faraday cage effect to shield the electromagnetic field from interference to the internal circuit.

[0027] like Figure 5 and Figure 6 As shown, the top of the hemispherical cavity of the magnetic shield 3 is provided with a cylindrical cavity that is recessed inward. The magnetic induction module 4 is fixedly installed in the cylindrical cavity. The top of the cylindrical cavity is fixedly installed with a top cover 32 that smoothly transitions with the outer contour of the magnetic shield 3. The magnetic induction module 4 is responsible for acquiring the electromagnetic parameters and environmental interference data of the UAV 1 body and determining the electromagnetic interference situation of the UAV 1 body data link.

[0028] External loads such as electromagnetic detection equipment and infrared cameras are designed as independent shielded modules and connected to the host via quick-release interfaces to avoid interference from external circuits.

[0029] like Figure 1 and Figure 3 As shown, the rotor 5 includes a brushless motor and blades. The brushless motor is equipped with an annular permalloy shield to suppress electromagnetic noise. The blades are made of non-metallic materials, such as glass fiber or carbon fiber, to avoid the eddy current effect generated by metallic materials in a strong magnetic field, which would cause additional drag or heat generation.

[0030] like Figure 1 , Figure 3 , Figure 7 and Figure 8 As shown, the UAV 1 has landing gear 6 arranged in a figure-eight pattern symmetrically below its body. A folding wing 61 is rotatably mounted in the middle of the landing gear 6. A torsion spring 62 connects the folding wing 61 and the landing gear 6. A magnetic protective plate 63 is slidably mounted on the folding wing 61, and a tension spring 64 connects the folding wing 61 and the magnetic protective plate 63. A winder 8 is fixedly mounted on the lower part of the magnetic protective ring 2. A winding strip 81 extends outward from the winder 8. The free end of the winding strip 81 is fixedly connected to the magnetic protective plate 63.

[0031] When UAV 1 approaches the high-voltage power line for maintenance, the winder 8 pulls the winding tape 81 into a winding state. At this time, the magnetic shielding plate 63 is placed at an angle parallel to the landing gear 6 on both sides. The magnetic shielding plate 63 is also located on both sides below the magnetic shielding ring 2. At this time, the magnetic shielding plate 63, the magnetic shielding ring 2, and the magnetic shielding cover 3 together form a magnetic interference shielding protection for UAV 1 in the top, left, and right directions. A reserved space is set below UAV 1 for the installation and operation of the camera and payload. When UAV 1 flies to the work area, positioning itself above the high-voltage power line, the winder 8 is then activated to slowly release the winding tape 81 using its winding and unwinding capabilities. Subsequently, the torsion spring 62 resets and drives the folding wing 61 to deflect, which in turn drives the magnetic shielding plate 63 to deflect, changing the magnetic shielding plate 63 from an inclined posture to a horizontal posture. At this time, the magnetic shielding plate 63 is located below the UAV 1 and is smoothly unfolded. Then, under the further release of the winding belt 81, the tension spring 64 resets and causes relative sliding between the magnetic shielding plate 63 and the folding wing 61. At this time, the two magnetic shielding plates 63, which are set opposite each other, move closer to each other and finally fit together to form an integral planar structure. The UAV 1 is positioned above the planar structure spliced ​​with magnetic shielding plates 63, and the magnetic shielding plate 63 provides shielding protection against magnetic interference from the direction of the high-voltage transmission line.

[0032] like Figure 5 and Figure 9As shown, both ends of the magnetic protective plate 63 are fixedly provided with honeycomb metal mesh 65. The metal mesh 65 is reliably grounded with the conductive frame of the UAV 1 body to form a shield. The landing gear 6 ends are fixedly installed with conductive carbon brushes 66 for frictional discharge with air.

[0033] The magnetic shield 63 uses a carbon fiber composite frame to reduce weight, and the metal mesh 65 adopts a honeycomb structure, which can effectively reduce the weight of the magnetic shield 63. While achieving magnetic interference protection, it increases the operating and load time of the UAV 1. Carbon brushes 66 are installed on the landing gear 6 to release the static charge accumulated when approaching high-voltage power lines and avoid electrostatic discharge interference with equipment. The carbon brushes 66 are connected to the metal frame of the UAV 1 through wires to ensure rapid charge discharge. In addition, the carbon brushes 66 are made of high-temperature resistant materials to adapt to the high-speed flight environment.

[0034] The metal mesh 65 is made of aluminum or copper, and the mesh size is preset according to the following formula: ;

[0035] Where λ is the electromagnetic wave wavelength, d is the mesh spacing, and the mesh size is optimized for the target interference frequency band, with d < λ / 4; Metal mesh 65 is preferably made of aluminum-magnesium alloy, which has low density and good conductivity, or silver-plated nylon mesh, which is flexible and corrosion-resistant, with a thickness of 0.1-0.5 mm. In addition, surface coating treatments, such as nickel plating or copper plating, can enhance oxidation resistance and conductivity continuity.

[0036] Metal mesh 65 has a good shielding effect on high-frequency interference such as MHz-level noise generated by corona discharge of transmission lines. The shielding effect is significant when the mesh spacing d < λ / 4.

[0037] like Figure 2 and Figure 4 As shown, the metal mesh 65 is distributed on both sides of the landing gear 6. The metal mesh 65 avoids sensors such as cameras and lidar below, and reserves space for the landing gear 6 and payload compartment of the UAV 1. Metal Mesh 65 uses a hexagonal honeycomb structure to enhance its resistance to deformation.

[0038] like Figures 1 to 4 As shown, a suspension part 7 is fixedly installed on the lower part of the fuselage of the UAV 1. The suspension part 7 passes through the reserved space in the middle of the magnetic protective plate 63, and an insulating rod-shaped body 71 is fixedly installed below the suspension part 7. During the inspection of high-voltage transmission lines by the UAV 1, line de-icing operations are required according to usage needs. At this time, the rod-shaped body 71 is installed below the suspension part 7 in advance. During operation, the impact of the rod-shaped body 71 on the high-voltage transmission line causes the ice layer attached to the transmission line to break and fall off.

[0039] like Figure 5 and Figure 8 As shown, an outer column 611 is provided in the middle of the folding wing 61, and a notched ring 612 is provided on the landing gear 6 to limit the circumferential rotation angle of the outer column 611. When the magnetic protective plate 63 is in a horizontal position, one end of the outer column 611 is in contact with the notched ring 612. The angle limiting effect between the notch ring 612 and the outer column 611 enables the control and adjustment of the unfolding posture of the magnetic protective plate 63 during the position adjustment process.

[0040] like Figures 1 to 4 As shown, a transition ring 9 is rotatably installed between the magnetic protective cover 3 and the magnetic protective ring 2. The magnetic protective cover 3 has a hemispherical structure, and the outer diameters of the magnetic protective cover 3, the magnetic protective ring 2, and the transition ring 9 are the same.

[0041] The magnetic shield 3, magnetic shield 2 and transition ring 9 form a complete magnetic interference shield for the fuselage of UAV 1 and its internal data link transmission components. A dynamic folding magnetic shield 63 is set at the bottom to achieve dynamic shielding protection when the direction of magnetic interference on UAV 1 changes during flight, further enhancing the anti-magnetic interference capability of UAV 1.

[0042] like Figure 3 and Figure 5 As shown, a flexible graphene heating film 51 is pre-embedded in the middle of the blade, and a slip ring for power supply is provided at the root of the rotor 5. Resistance wires or graphene heating films 51 are embedded in areas prone to icing, such as the root of the propeller and the leading edge of the wing. The heating is periodically powered by a battery. The blades are designed with tilted blades and smooth curved surfaces to avoid snow accumulation. When the UAV 1 is performing high-voltage line maintenance, it is often in a slow flight or hovering state. In order to reduce the negative interference caused by freezing rain or snow accumulation on the UAV 1, a hemispherical magnetic shield 3 is used to reduce the snow residue on the UAV 1 fuselage. By improving the blades and adding heating components, the anti-interference and anti-freezing capabilities of the rotor 5 are improved, thereby improving the flight performance of the UAV 1.

[0043] like Figure 6 , Figure 9 and Figure 10As shown, a tension column 33 of elastic material is fixedly installed in the middle of the top cover 32. Adhesive wires 91 are evenly installed around the perimeter of the transition ring 9. The adhesive wires 91 adhere to the hemispherical outer curved surface of the magnetic protective cover 3, and the other end of the adhesive wires 91 is fixedly connected to the tension column 33. The inner curved surface of the transition ring 9 is provided with meshing teeth 92. A micro motor 21 is fixedly installed on the inner side of the magnetic protective ring 2. A gear 22 is fixedly installed on the output shaft of the micro motor 21, and the gear 22... 2 engages with meshing teeth 92. An elastic skin 34 is attached to the hemispherical surface of the magnetic protective cover 3. Several micro airbags 35 are embedded in the hemispherical surface of the magnetic protective cover 3. The airbags 35 are located inside the skin 34. When inflated, they expand the skin 34. Elastic air chambers 36 are evenly installed at the contact surface between the magnetic protective cover 3 and the transition ring 9. The air chambers 36 and the airbags 35 are connected by air passages. A pressure block 37 for squeezing the air chambers 36 is fixedly installed on the transition ring 9.

[0044] To further enhance the anti-electromagnetic interference and anti-freeze capabilities of UAV 1, and increase its single-maintenance runtime, when UAV 1 is in slow flight or hovering, the micro motor 21 is activated to perform periodic reciprocating operation. The micro motor 21 drives the gear 22 to rotate, and the meshing action between the gear 22 and the meshing teeth 92 drives the transition ring 9 to rotate at a certain angle. At this time, the rotation of the transition ring 9 drives the pressure block 37 to rotate synchronously. During the rotation, the pressure block 37 compresses the air chamber 36, causing it to contract. The high-pressure gas then enters through the air passage. The micro airbag 35 is inserted and inflated. When the micro airbag 35 inflates, it expands the skin 34, causing a change in the shape of the surface contour of the skin 34. At this time, if there is ice or snow on the surface of the skin 34, it can be shaken off by the active expansion of the skin 34. In addition, with the rotation of the transition ring 9, it drives the bonding wire 91 to rotate. At this time, the bonding wire 91 slides against the magnetic protective cover 3 and the surface of the skin 34, further realizing the removal of accumulated ice and snow, thereby improving the anti-interference capability of the UAV 1 and improving its flight performance and operating time.

[0045] Furthermore, this invention also provides a method for predicting electromagnetic interference situations in UAV data links, the method comprising the following steps: S1. Operational Inspection: First, the anti-interference and de-icing performance of UAV 1 is verified in the artificial climate chamber to simulate freezing rain and strong electromagnetic environment. During the subsequent flight of UAV 1, the data link status changes continuously and the working signal power received by the airborne antenna changes constantly. At this time, the magnetic induction module 4 monitors and senses the surrounding magnetic induction status to determine the electromagnetic interference situation of the UAV data link.

[0046] S2. Active shielding: The electromagnetic shielding effect of the magnetic shielding cover 3 and the magnetic shielding plate 63 actively reduces or isolates the negative impact of external electromagnetic interference on the flight data link of the UAV 1.

[0047] S3. Environmental Adaptation: In a specific natural environment, the micro motor 21 and the winder 8 are started to operate, so that the bonding wire 91 is attached to the outer curved surface of the magnetic protective cover 3 and rotates, causing the magnetic protective plate 63 to flip and operate, thereby reducing or eliminating the problem of increased flight drag and decreased anti-electromagnetic interference ability caused by the natural environment on the body of the UAV 1.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for predicting electromagnetic interference situation of a UAV data link, comprising a UAV (1) body, characterized in that, include: Magnetic protective ring (2), the UAV (1) has wing rods around its body for mounting rotors (5), and the magnetic protective ring (2) is fixedly mounted on the wing rods; A magnetic protective shield (3) is a hemispherical structure. The magnetic protective shield (3) is fixedly installed above the magnetic protective ring (2), and the control module of the UAV (1) body is located inside the magnetic protective shield (3). A copper braided mesh (31) is pre-installed inside the magnetic protective shield (3). An elastic skin (34) is attached to the hemispherical surface of the magnetic protective shield (3). Several micro airbags (35) are pre-embedded on the hemispherical surface of the magnetic protective shield (3). The airbags (35) are located inside the skin (34) and expand when inflated. The magnetic protective shield (3) and the magnetic protective ring (2) are fixedly installed above the magnetic protective ring (2). A transition ring (9) is rotatably installed between the protective rings (2). The inner curved surface of the transition ring (9) is provided with meshing teeth (92). A micro motor (21) is fixedly installed on the inner side of the magnetic protective ring (2). A gear (22) is fixedly installed on the output shaft of the micro motor (21), and the gear (22) meshes with the meshing teeth (92). Elastic air chambers (36) are evenly installed at the contact surface between the magnetic protective cover (3) and the transition ring (9). The air chambers (36) and the air bags (35) are connected through an air passage. A pressure block (37) for squeezing the air chambers (36) is fixedly installed on the transition ring (9). The top of the hemispherical compartment of the magnetic shield (3) is provided with a cylindrical cavity that is recessed inward. The top of the cylindrical cavity is fixedly installed with a top cover (32) that smoothly transitions with the outer contour of the magnetic shield (3). A tension column (33) of elastic material is fixedly installed in the middle of the top cover (32). Adhesive wires (91) are evenly installed around the transition ring (9). The adhesive wires (91) are attached to the hemispherical outer curved surface of the magnetic shield (3), and the other end of the adhesive wires (91) is fixedly connected to the tension column (33). Magnetic induction module (4), which is fixedly installed on the upper inner side of the magnetic protective cover (3); The UAV (1) has landing gear (6) symmetrically arranged below the body. A folding wing (61) is rotatably installed in the middle of the landing gear (6). A magnetic protective plate (63) is slidably installed on the folding wing (61), and a tension spring (64) is connected between the folding wing (61) and the magnetic protective plate (63). A honeycomb metal mesh (65) is fixedly installed at both ends of the magnetic protective plate (63). The metal mesh (65) is reliably grounded to the conductive frame of the UAV (1) body to form a shield. A conductive carbon brush (66) for frictional discharge with air is fixedly installed at the end of the landing gear (6).

2. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: The rotor (5) includes a brushless motor and blades. The brushless motor is equipped with an annular permalloy shield to suppress electromagnetic noise. The blades are made of non-metallic materials, such as glass fiber or carbon fiber.

3. The UAV data link electromagnetic interference situation prediction device according to claim 2, characterized in that: A flexible graphene heating film (51) is pre-embedded in the middle of the blade, and a slip ring for power supply is provided at the root of the rotor (5).

4. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: A torsion spring (62) is connected between the folding wing (61) and the landing gear (6).

5. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: The metal mesh (65) is distributed on both sides of the landing gear (6). The metal mesh (65) avoids sensors such as cameras and lidar below, and reserves space for the landing gear (6) and the payload compartment.

6. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: The lower part of the fuselage of the unmanned aerial vehicle (1) is fixedly equipped with a suspension unit (7).

7. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: A winder (8) is fixedly installed at the lower part of the magnetic protective ring (2). The winder (8) extends outward with a winding strip (81). The free end of the winding strip (81) is fixedly connected to the magnetic protective plate (63).

8. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: The folding wing (61) has an outer column (611) in the middle, and the landing gear (6) has a notch ring (612) for limiting the circumferential rotation angle of the outer column (611).

9. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: The magnetic shield (3), magnetic shield (2), and transition ring (9) have the same outer diameter.

10. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: The metal mesh (65) is made of aluminum or copper.

11. The UAV data link electromagnetic interference situation prediction device according to claim 1, characterized in that: The magnetic induction module (4) is responsible for acquiring the electromagnetic parameters and environmental interference data of the UAV (1) body and determining the electromagnetic interference situation of the UAV (1) body data link.

12. A UAV data link electromagnetic interference situation prediction device according to any one of claims 1 to 11, characterized in that: The specific prediction and processing methods using the aforementioned UAV data link electromagnetic interference situation prediction device include the following steps: Operational checks: During the flight of the UAV (1), the data link status changes continuously and dynamically, and the working signal power received by the airborne antenna changes constantly. At this time, the magnetic induction module (4) monitors and senses the surrounding magnetic induction status to determine the electromagnetic interference situation of the UAV data link. Active shielding: The electromagnetic shielding effect of the magnetic shield (3) and the magnetic shield (63) actively reduces or isolates the negative impact of external electromagnetic interference on the flight data link of the UAV (1); Environmental adaptation: In a specific natural environment, the micro motor (21) and the winder (8) are started to run, so that the bonding wire (91) is attached to the outer curved surface of the magnetic shield (3) and rotates, so that the magnetic shield (63) is flipped, thereby reducing or eliminating the problem of increased flight resistance and decreased anti-electromagnetic interference ability caused by the natural environment on the body of the UAV (1).

13. The UAV data link electromagnetic interference situation prediction device according to claim 4, characterized in that: The magnetic induction module (4) is fixedly installed inside the cylindrical empty chamber.

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