Anti-overturning device for multi-rotor unmanned aerial vehicle ship landing and use method

Abstract

This invention discloses an anti-tipping device and its method for landing multi-rotor unmanned aerial vehicles (UAVs) on a ship, relating to the field of platform landing technology. In the device, a rope-pulling mechanism mounted on the hull is connected to multiple elastic ropes and kept taut by the rope-pulling mechanism. A release mechanism includes a guide post that can switch between an upright and tilted state. When upright, the guide post abuts against the elastic ropes and redirects their direction, allowing the elastic ropes to avoid the landing area for the multi-rotor UAV. When tilted, the guide post releases the redirection constraint, and the elastic ropes, under tension, return to a straight path spanning the landing area and intersect to form a mesh structure. Through this invention, the vertical displacement of the UAV landing gear relative to the hull is restricted by the mesh structure after the UAV landing gear enters the landing area, adapting to hull sway and reducing the risk of deviation, instability, and capsizing during UAV landing. Furthermore, it does not require alteration of the original hull structure, and the device is simple in structure and reliable in operation.

Description

Technical Field

[0001] This invention relates to the field of platform landing technology, and more particularly to an anti-tipping device for landing on a multi-rotor unmanned aerial vehicle (UAV) and a method of using the anti-tipping device for landing on a multi-rotor UAV. Background Technology

[0002] Multi-rotor drones have vertical takeoff and landing capabilities and can be mounted on ships to perform operations such as surface inspection, surveying, and rescue. During landing on a ship, the ship's hull is susceptible to the effects of waves, wind, and its own motion, causing roll, pitch, or heave, which alters the attitude and altitude of the landing area. When a multi-rotor drone descends onto the ship's deck, its landing gear may not be able to make stable contact with the deck simultaneously, leading to uneven support, lateral slippage, or tilting of the drone.

[0003] Current shipboard drone landing methods typically rely primarily on the contact support between the landing gear and the deck or landing platform, lacking effective restraint structures to hold the landing gear in place. When the ship rolls or tilts, the landed drone may experience vertical bouncing, lifting, or capsizing relative to the hull. Pre-installing fixed mesh structures or other restraints above the landing area could hinder the drone's descent and the landing gear's entry into the landing area, or even interfere with the drone itself, making it difficult to simultaneously address obstacle avoidance during landing and anti-capsulation restraints after landing.

[0004] Therefore, it is necessary to provide an anti-overturning device for multi-rotor UAVs landing on ships, which allows the limiting structure to avoid the landing area during the UAV landing phase, and forms a mesh limiting structure above the landing gear after the landing gear enters the landing area, so as to limit the vertical displacement of the landing gear relative to the ship hull and reduce the risk of the UAV overturning under the hull swaying conditions. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an anti-tipping device and method for landing multi-rotor unmanned aerial vehicles (UAVs) on a ship. By installing a rope-pulling mechanism, a release mechanism, and multiple elastic ropes on the hull, and utilizing a guide post that can switch between an upright and tilted state to alter the extension path of the elastic ropes, the device ensures that when the guide post is upright, the elastic ropes, under tension, avoid the landing area. When the guide post tilts, the redirection constraint is released, and the elastic ropes, relying on their tension, return to a straight path spanning the landing area and intersect to form a mesh structure above the landing gear. This solves the problems of limiting structures easily interfering with landing gear entry during multi-rotor UAV landing and failing to promptly restrict vertical displacement after landing. It achieves a balance between avoiding obstacles during landing and limiting vertical displacement after landing, reducing the risk of slippage, lifting, and capsizing of the UAV during hull swaying, tilting, or heave, and improving the stability and safety of the UAV after landing on the ship.

[0006] To achieve the above objectives, the present invention provides an anti-tipping device for landing on a multi-rotor unmanned aerial vehicle (UAV) ship, comprising a rope pulling mechanism, a release mechanism, and multiple elastic ropes mounted on the hull. Each of the elastic ropes is connected to the rope-pulling mechanism and is kept taut by the rope-pulling mechanism; The release mechanism includes a wire stop that can be switched from an upright state to a tilted state, the wire stop being used to change the extension path of the elastic rope; When the guide post is in the upright state, the guide post abuts against the elastic rope and causes the elastic rope to change direction so that the elastic rope avoids the landing area for the multi-rotor UAV to land. After the guide post switches from the upright state to the tilted state, the guide post releases the redirection constraint on the elastic rope, allowing each elastic rope to return from the redirection path that avoids the landing area to a straight path that crosses the landing area under tension. Multiple elastic ropes are arranged in a crisscross pattern within the landing area to form a mesh structure. When the landing gear of the multi-rotor UAV is located within the landing area, the mesh structure is positioned above the landing gear to limit the vertical displacement of the landing gear relative to the hull.

[0007] In the above technical solution, preferably, there are four elastic ropes; when the guide post is in the vertical state, the four elastic ropes together form the landing area under tension.

[0008] In the above technical solution, preferably, the positions of the rope pulling mechanism and the release mechanism on the hull are adjustable to accommodate multi-rotor drones of different specifications.

[0009] In the above technical solution, preferably, the anti-tipping device for landing on a multi-rotor UAV ship also includes a controller and a signal line, the controller being disposed on the hull, and the signal line connecting the controller and the release mechanism.

[0010] In the above technical solution, preferably, the controller has an infrared ranging function, which is used to detect the distance change between the multi-rotor drone and the controller during the landing of the multi-rotor drone, and when it is determined that the multi-rotor drone is about to complete the landing based on the distance change, it sends a release signal to the release mechanism through the signal line.

[0011] In the above technical solution, preferably, the release mechanism is used to switch the wire-blocking post from the upright state to the tilted state in response to the release signal.

[0012] The present invention also proposes a method for using an anti-tipping device for landing on a multi-rotor unmanned aerial vehicle (UAV) ship, comprising: Before the multi-rotor UAV lands, multiple elastic ropes are kept taut by a rope pulling mechanism, and the line-blocking posts are kept upright so that the multiple elastic ropes avoid the landing area. During the landing of the multi-rotor UAV, the release mechanism switches the guide post from the upright state to the tilted state to release the guide post's constraint on the elastic rope. The multiple elastic ropes, under tension, are restored from a redirected path that avoids the landing area to a straight path that crosses the landing area, and are arranged in a cross pattern within the landing area to form a mesh structure; when the landing gear of the multi-rotor UAV is located within the landing area, the mesh structure is located above the landing gear to limit the vertical displacement of the landing gear relative to the hull.

[0013] In the above technical solution, preferably, before the multi-rotor UAV lands, four elastic ropes are installed on the rope pulling mechanism and the four elastic ropes are tensioned to form the landing area.

[0014] In the above technical solution, preferably, before the multi-rotor UAV lands, the positions of the rope pulling mechanism and the release mechanism on the hull are adjusted according to the specifications of the multi-rotor UAV.

[0015] In the above technical solution, preferably, switching the wire-blocking post from the upright state to the tilted state includes: During the landing of the multi-rotor UAV, the distance change between the multi-rotor UAV and the controller is detected by the infrared ranging function of the controller; When the controller determines that the multi-rotor UAV is about to complete its landing based on the distance change, the controller sends a release signal to the release mechanism via a signal line, so that the line-blocking post switches from the upright state to the tilted state.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By setting up a rope pulling mechanism, a release mechanism and multiple elastic ropes on the hull, and switching the line-blocking post between the upright state and the tilted state, the rope path is changed by the contact and release of the tensioned elastic rope by the line-blocking post, so that the elastic rope avoids the landing area during the landing phase of the multi-rotor UAV, and restores the straight path across the landing area after the line-blocking post tilts down. This solves the problem that the fixed limiting structure can easily hinder the descent of the UAV and the entry of the landing gear, and realizes the conversion of landing passage avoidance and post-landing limiting function.

[0017] (2) Multiple elastic ropes intersect in the landing area after restoring a straight path to form a mesh structure, and the mesh structure is placed above the landing gear to create multiple overhead obstructions for the landing gear, limiting the vertical displacement of the landing gear relative to the hull. When the hull sways, tilts, or heaves, it can reduce the lifting and disengagement of the landing gear, thereby reducing the risk of the multi-rotor UAV slipping or overturning.

[0018] (3) In the scheme of using four elastic ropes, the four elastic ropes together form a landing area when the guide post is erected. After the guide post is tilted, they cross to form a mesh structure, so that the boundary of the landing area is connected with the limiting range after landing, which makes it easier for the UAV to enter the predetermined landing area and improves the coverage of the limiting structure.

[0019] (4) By making the positions of the rope pulling mechanism and the release mechanism on the hull adjustable, the landing area and rope layout can be adjusted according to different specifications of multi-rotor UAVs, so that the landing gear entry position can be adapted to the mesh limiting structure, thus expanding the applicability of the device.

[0020] (5) The infrared ranging function of the controller detects the distance change between the multi-rotor UAV and the controller, and sends a release signal to the release mechanism via the signal line when it is judged that the UAV is about to complete the landing. This causes the line blocking column to switch from the vertical state to the tilted state in time, thereby realizing the linkage between the release action and the landing state of the UAV, reducing the reliance on manual judgment, and improving the timeliness and stability of the device. Attached Figure Description

[0021] Figure 1 This is a three-view drawing of an anti-tipping device for shipboard landing of a multi-rotor unmanned aerial vehicle, as disclosed in an embodiment of the present invention. Figure 2 This is a top view schematic diagram of the tension state of an elastic rope disclosed in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the before and after states of the release mechanism releasing the elastic rope, as disclosed in an embodiment of the present invention.

[0022] The correspondence between the components and the reference numerals in the diagram is as follows: 1. Hull; 2. Rope pulling mechanism; 3. Release mechanism; 4. Line blocking post; 5. Elastic rope; 6. Controller; 7. Signal line; 8. Multi-rotor UAV. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings: like Figure 1 and Figure 2 As shown, an anti-overturning device for landing on a multi-rotor unmanned aerial vehicle (UAV) ship according to the present invention includes a rope pulling mechanism 2, a release mechanism 3 and multiple elastic ropes 5 disposed on the hull 1. Each elastic rope 5 is connected to the rope-pulling mechanism 2, which applies tension to the elastic rope 5 to keep it taut. The elastic rope 5 has a certain amount of elastic deformation under tension, allowing it to return to its original extended state after the redirection constraint is released.

[0025] The release mechanism 3 includes a guide post 4, which can be switched from an upright state to a tilted state. When the guide post 4 is in the upright state, it abuts against the elastic rope 5, causing the elastic rope 5 to change its extension direction and avoid the landing area for the multi-rotor UAV 8. During the descent of the UAV, it maintains a clearance state within the landing area, allowing the landing gear to enter the area without being obstructed by the elastic rope 5.

[0026] When the guide post 4 is in the upright position, the guide post 4 comes into contact with the elastic rope 5 and causes the elastic rope 5 to change direction so that the elastic rope 5 avoids the landing area for the multi-rotor UAV 8 to land. After the guide post 4 switches from the upright state to the tilted state, the guide post 4 releases the redirection constraint on the elastic rope 5, so that each elastic rope 5, under tension, returns from the redirection path that avoids the landing area to the straight path that crosses the landing area. Multiple elastic ropes 5 are arranged in a cross pattern within the landing area to form a mesh structure. When the landing gear of the multi-rotor UAV 8 is located within the landing area, the mesh structure is located above the landing gear to limit the vertical displacement of the landing gear relative to the hull 1.

[0027] Through the above-mentioned setup, the same set of elastic ropes 5 can avoid the landing area during the drone's descent phase and form an upper limiting structure after landing, taking into account both the openness of the drone's landing channel and the anti-overturning requirements after landing. Since the device mainly consists of a rope-pulling mechanism 2, a release mechanism 3, and elastic ropes 5 installed on the hull 1, it can be directly arranged on the existing deck in one installation method, reducing the need to modify the main structure of the hull 1.

[0028] In this embodiment, the risk of multi-rotor UAVs slipping, lifting, and capsizing during hull swaying, tilting, or heave can be reduced, and the applicability and reliability of the device structure can be improved.

[0029] In the above embodiment, preferably, there are four elastic ropes 5; the four elastic ropes 5 are respectively connected to the rope pulling mechanism 2 and are tensioned. When the line blocking post 4 is in the vertical state, the four elastic ropes 5 are located on the periphery of the landing area under the reversing action of the line blocking post 4, and together form a landing area for the multi-rotor UAV 8 to enter.

[0030] In one specific arrangement, the four elastic ropes 5 can be arranged in pairs, each cooperating with the release mechanism 3. When the guide post 4 is erected, each elastic rope 5 is guided to a position that avoids the landing area; after the guide post 4 is tilted, the four elastic ropes 5 return to their path across the landing area under tension, and intersect within the area to form a mesh structure.

[0031] The tension of the four elastic ropes 5 acts on different positions, and after release, they tend to converge towards the center of the landing area. When the actual landing position of the UAV deviates from the predetermined position, the cross elastic ropes 5 can provide a certain central constraint on the landing gear and form multiple limiting points above the landing gear.

[0032] In this embodiment, the four elastic ropes 5 can clearly define the landing area and form a well-covering mesh structure after release, which can limit the landing gear from multiple directions and adapt to a certain degree of landing position deviation.

[0033] In the above embodiments, preferably, the positions of the rope pulling mechanism 2 and the release mechanism 3 on the hull 1 are adjustable. In use, the arrangement positions of the rope pulling mechanism 2 and the release mechanism 3 on the hull 1 can be changed according to the body size of the multi-rotor UAV 8 to be landed, the landing gear spacing and the expected landing position.

[0034] After adjustment, the rope-pulling mechanism 2 applies appropriate tension to the elastic rope 5, and the guide post 4 in the release mechanism 3 is positioned where the elastic rope 5 needs to be redirected. When the guide post 4 is upright, the elastic rope 5 avoids the adjusted landing area; after the guide post 4 is tilted, the elastic rope 5 recovers and crosses within the adjusted landing area to form a mesh structure, adapting the mesh structure to the landing gear position of the corresponding UAV.

[0035] In this embodiment, the landing area and cable layout can be adjusted for multi-rotor drones of different specifications, avoiding interference between the cable and the drone due to differences in drone size or landing gear position, thus improving the versatility of the device.

[0036] In the above embodiments, preferably, the anti-overturning device for landing on a multi-rotor UAV ship also includes a controller 6 and a signal line 7. The controller 6 is disposed on the hull 1, and one end of the signal line 7 is connected to the controller 6 and the other end is connected to the release mechanism 3, thereby establishing a signal transmission channel between the controller 6 and the release mechanism 3.

[0037] The controller 6 can send control information to the release mechanism 3 via the signal line 7, and the release mechanism 3 executes the corresponding release action according to the received control information. The signal line 7 can be arranged along the hull 1, so that the controller 6 can control the release mechanism 3 without direct contact with it. The rope pulling mechanism 2 and the elastic rope 5 continue to perform the mechanical actions of tensioning, reversing and restoring the rope path.

[0038] In this embodiment, the remote control of the release mechanism 3 can be achieved through the signal connection between the controller 6 and the release mechanism 3, making the rope path conversion process easier to operate and reducing the need for manual operation of the deck release mechanism 3.

[0039] In the above embodiment, preferably, the controller 6 has an infrared ranging function, used to detect the distance change between the multi-rotor drone 8 and the controller 6 during the landing process of the multi-rotor drone 8, and continuously obtain distance change information during the drone's descent. The controller 6 determines that the multi-rotor drone 8 is about to complete its landing based on the detected distance change. When the distance change indicates that the drone is close to completing its landing, the controller 6 sends a release signal to the release mechanism 3 via the signal line 7. The release signal triggers the release mechanism 3 to perform the release action of the elastic rope 5; the specific switching of the state of the guide post 4 is completed by the release mechanism 3.

[0040] In this embodiment, linking the release timing of the elastic rope 5 with the actual landing state of the multi-rotor drone 8 can reduce the situation where releasing too early causes obstruction of the landing area or releasing too late causes untimely limiting, thereby improving the accuracy of the release timing and the stability of the use process.

[0041] like Figure 3 As shown, in the above embodiment, preferably, the release mechanism 3 is used to switch the wire-blocking post 4 from an upright state to a tilted state in response to a release signal.

[0042] When no release signal is received, the guide post 4 remains upright and abuts against the elastic rope 5, causing the elastic rope 5 to extend along the redirection path of the avoidance landing area. When the release mechanism 3 receives the release signal, it releases the upright position of the guide post 4, causing the guide post 4 to tilt, and the elastic rope 5 is no longer constrained by the redirection of the guide post 4.

[0043] After the guide post 4 tilts, the elastic rope 5, under tension, returns to a straight path spanning the landing area and intersects within the landing area to form a mesh structure. This mesh structure is located above the landing gear entering the landing area and is used to limit the vertical displacement of the landing gear relative to the ship's hull.

[0044] In this embodiment, a reliable conversion between the control signal and the mechanical state of the guide post is achieved, enabling the elastic rope to promptly return to the mesh-like limit state after receiving the release signal, thereby improving the responsiveness of the anti-tipping device.

[0045] The present invention also proposes a method for using an anti-tipping device for landing on a multi-rotor unmanned aerial vehicle (UAV) ship, comprising: Before the multi-rotor drone 8 lands, the rope pulling mechanism 2 keeps multiple elastic ropes 5 in a taut state and keeps the line-blocking post 4 in an upright state. The line-blocking post 4 abuts against the elastic ropes 5, causing the elastic ropes 5 to extend along the redirection path of the landing area, thereby keeping the landing area open and preventing the elastic ropes 5 from crossing the drone's predetermined descent channel.

[0046] During the landing of the multi-rotor UAV 8, the release mechanism 3 switches the guide post 4 from an upright state to a tilted state. After the guide post 4 tilts, the redirection constraint on the elastic rope 5 is released, and the elastic rope 5, under tension, returns from the redirection path that avoids the landing area to a straight path that crosses the landing area.

[0047] The restored elastic ropes are arranged in a crisscross pattern within the landing area, forming a mesh structure. When the landing gear of the multi-rotor UAV is within the landing area, the mesh structure is positioned above the landing gear. When the hull 1 sways or heaves, the mesh structure acts as an overhead obstruction for the landing gear, limiting its vertical displacement relative to the hull and preventing the UAV from lifting or capsizing due to unstable landing gear support.

[0048] In this embodiment, through a series of steps including pre-landing avoidance, landing release, and post-landing mesh restraint, the UAV can smoothly enter the landing area and achieve anti-capsulation maintenance after landing while the hull is in motion.

[0049] In the above embodiment, preferably, before the multi-rotor UAV 8 lands, four elastic ropes 5 are installed on the rope pulling mechanism 2, and the rope pulling mechanism 2 applies tension to the four elastic ropes 5 respectively, so that the four elastic ropes 5 are in a taut state.

[0050] In one specific operation, the four elastic ropes 5 can be arranged in pairs to cooperate with the release mechanism 3. When the guide post 4 is in the upright position, the four elastic ropes 5, after being redirected, are located outside the landing area, together forming the landing area. At this time, the landing area has space for the multi-rotor UAV to descend and for the landing gear to enter.

[0051] When the guide post 4 is tilted, the four elastic ropes 5 return to a straight path across the landing area under tension, and intersect to form a mesh structure within the landing area, thus limiting the landing gear located below them.

[0052] In this embodiment, by pre-installing and tensioning four elastic ropes 5, a clear landing area can be formed before landing, and a multi-point cross-limiting structure can be quickly formed after release, thereby improving the stability of landing preparation and anti-overturning limit.

[0053] In the above embodiments, preferably, before the multi-rotor drone 8 lands, the positions of the rope pulling mechanism 2 and the release mechanism 3 on the hull 1 are adjusted according to the specifications of the multi-rotor drone 8.

[0054] During adjustment, the arrangement relationship between the rope pulling mechanism 2 and the release mechanism 3 can be determined according to the size of the UAV, the distance between the landing gears and the predetermined landing position, so that when the guide post 4 is erected, the elastic rope 5 can avoid the corresponding landing area, and when the guide post 4 is tilted, the elastic rope 5 can cross the landing area.

[0055] After the position adjustment is completed, following the above steps, the elastic rope 5 is tensioned by the rope pulling mechanism 2 and the line-blocking post 4 is kept in an upright state; during the landing of the UAV, the line-blocking post 4 is tilted by the release mechanism 3, so that the elastic rope is restored and forms a mesh structure above the landing gear.

[0056] In this embodiment, the device and the UAV specifications can be matched before the landing operation, so that the landing area, the elastic rope redirection path and the post-landing limit position can be adapted to multi-rotor UAVs of different specifications, thereby improving the device's on-site adaptability.

[0057] In the above embodiment, preferably, during the landing of the multi-rotor drone 8, the controller 6 detects the distance change between the multi-rotor drone 8 and the controller 6 through infrared ranging. The controller 6 determines whether the multi-rotor drone 8 is about to complete its landing based on the continuously detected distance changes.

[0058] When the controller 6 determines that the drone is about to complete its landing, it sends a release signal to the release mechanism 3 via the signal line 7. In response to the release signal, the release mechanism 3 switches the guide post 4 from an upright state to a tilted state, releasing the guide post 4 from its directional constraint on the elastic rope 5.

[0059] After the guide post 4 tilts, the multiple elastic ropes 5, under tension, return to a straight path spanning the landing area and intersect within the landing area to form a mesh structure. When the landing gear is within the landing area, the mesh structure is positioned above the landing gear to limit the vertical displacement of the landing gear relative to the hull.

[0060] By linking infrared ranging, landing completion judgment, signal transmission, and the switching of the line-stopping post status, the release process of the elastic rope is automatically triggered, enabling the mesh limiting structure to form at the appropriate time, reducing human judgment errors, and improving the timeliness and safety of landing operations on board.

[0061] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An anti-tipping device for shipboard landing of a multi-rotor unmanned aerial vehicle, characterized in that, This includes a rope-pulling mechanism, a release mechanism, and multiple elastic ropes mounted on the hull; Each of the elastic ropes is connected to the rope-pulling mechanism and is kept taut by the rope-pulling mechanism; The release mechanism includes a wire stop that can be switched from an upright state to a tilted state, the wire stop being used to change the extension path of the elastic rope; When the guide post is in the upright state, the guide post abuts against the elastic rope and causes the elastic rope to change direction so that the elastic rope avoids the landing area for the multi-rotor UAV to land. After the guide post switches from the upright state to the tilted state, the guide post releases the redirection constraint on the elastic rope, allowing each elastic rope to return from the redirection path that avoids the landing area to a straight path that crosses the landing area under tension. Multiple elastic ropes are arranged in a crisscross pattern within the landing area to form a mesh structure. When the landing gear of the multi-rotor UAV is located within the landing area, the mesh structure is positioned above the landing gear to limit the vertical displacement of the landing gear relative to the hull.

2. The anti-tipping device for shipboard landing of a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, There are four elastic ropes; when the guide post is in the vertical position, the four elastic ropes together form the landing area under tension.

3. The anti-tipping device for shipboard landing of a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, Both the rope-pulling mechanism and the release mechanism are adjustable in position on the hull to accommodate multi-rotor drones of different specifications.

4. The anti-tipping device for shipboard landing of a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, It also includes a controller and a signal line, the controller being mounted on the hull and the signal line connecting the controller and the release mechanism.

5. The anti-tipping device for shipboard landing of a multi-rotor unmanned aerial vehicle according to claim 4, characterized in that, The controller has an infrared ranging function, which is used to detect the distance change between the multi-rotor UAV and the controller during the landing of the multi-rotor UAV, and when it is determined that the multi-rotor UAV is about to complete the landing based on the distance change, it sends a release signal to the release mechanism via the signal line.

6. The anti-tipping device for shipboard landing of a multi-rotor unmanned aerial vehicle according to claim 5, characterized in that, The release mechanism is used to switch the wire-blocking post from the upright state to the tilted state in response to the release signal.

7. A method of using an anti-tipping device for landing on a multi-rotor unmanned aerial vehicle (UAV), characterized in that, include: Before the multi-rotor UAV lands, multiple elastic ropes are kept taut by a rope pulling mechanism, and the line-blocking posts are kept upright so that the multiple elastic ropes avoid the landing area. During the landing of the multi-rotor UAV, the release mechanism switches the guide post from the upright state to the tilted state to release the guide post's constraint on the elastic rope. The multiple elastic ropes, under tension, are restored from a redirected path that avoids the landing area to a straight path that crosses the landing area, and are arranged in a cross pattern within the landing area to form a mesh structure. When the landing gear of the multi-rotor UAV is located within the landing area, the mesh structure is positioned above the landing gear to limit the vertical displacement of the landing gear relative to the hull.

8. The method of use according to claim 7, characterized in that, Before the multi-rotor UAV lands, four elastic ropes are installed on the rope pulling mechanism and tensioned to form the landing area.

9. The method of use according to claim 7, characterized in that, Before the multi-rotor drone lands, the positions of the rope-pulling mechanism and the release mechanism on the hull are adjusted according to the specifications of the multi-rotor drone.

10. The method of use according to claim 7, characterized in that, The process of switching the wire-blocking post from the upright state to the tilted state includes: During the landing of the multi-rotor UAV, the distance change between the multi-rotor UAV and the controller is detected by the infrared ranging function of the controller; When the controller determines that the multi-rotor UAV is about to complete its landing based on the distance change, the controller sends a release signal to the release mechanism via a signal line, so that the line-blocking post switches from the upright state to the tilted state.

Images