A type of drone for collecting video information during railway inspection

Abstract

This invention relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV for collecting video information during railway inspection. The UAV includes a fuselage, with arms fixedly mounted on both sides. Rotors are symmetrically arranged at the top of each arm, and landing gear is fixedly mounted at the bottom of each arm. Two connecting frames are symmetrically fixedly mounted on the bottom of the fuselage, and a camera body is fixedly mounted between the two connecting frames. An obstacle avoidance camera is fixedly mounted on one side of the camera body, and an inspection camera and a focusing camera are fixedly mounted on the side walls of the camera body, respectively. A fog removal mechanism first protects the obstacle avoidance camera, preventing fog from forming on the lens surface, and then removes any fog that does form on the lens, thereby enabling the obstacle avoidance camera to better and more clearly detect the environment near the railway.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicles (UAVs), and more particularly to a UAV for collecting video information during railway inspection. Background Technology

[0002] With its advantages of maneuverability, high-resolution aerial image acquisition, safety and efficiency, and ability to conduct surveys in areas difficult for humans to access, drones are also suitable for use in the railway sector for road maintenance, route selection, geological surveying, disaster early warning and emergency response.

[0003] Existing technologies disclose some invention patents for drones. For example, Chinese patent application number 202111336739.6 discloses a highway drone cruise information sharing device based on the Internet of Things (IoT), which includes an IoT module connected to a drone cruise information sharing module, an information receiving module connected to an information processing module, and an information processing module connected to an information receiving module.

[0004] In order to collect information about the area near railways, inspection drones are usually used to collect environmental information about the area. However, if the weather is humid, the camera lens of the drone may not capture clear images during the patrol, which will affect the progress of the work. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drone for collecting video information during railway inspections.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a railway inspection camera information collection drone, comprising a fuselage, with arms fixedly installed on both sides of the fuselage, rotors symmetrically arranged on the top of each of the two arms, landing gear fixedly installed on the bottom of each of the two arms, two connecting frames symmetrically fixedly installed on the bottom of the fuselage, a camera body fixedly installed between the two connecting frames, an obstacle avoidance camera fixedly installed on one side of the camera body, and an inspection camera and a focusing camera fixedly installed on the side walls of the camera body respectively;

[0007] The obstacle avoidance camera is used to detect obstacles during the cruise and to feed the obstacle information back to the drone for avoidance.

[0008] The inspection camera is used to conduct video inspections of the environment near the railway and to feed back the environmental information to the operator.

[0009] The focusing camera is used to focus on target information and zoom in or out on the image when an anomaly is detected during the patrol.

[0010] A connecting plate is fixed to the bottom of the camera body, and a fog-removing mechanism is provided between the connecting plate and the camera body. The fog-removing mechanism is used to prevent water fog from forming on the lens surface of the camera.

[0011] Preferably, the fog removal mechanism includes a protective box, which is fixed to the top of the connecting plate. A circular groove is formed on one side wall of the protective box. A first motor is fixedly installed on the top of the protective box. The output shaft of the first motor passes through the protective box and is fixed to a protective frame. The protective frame is embedded in the circular groove. A transparent lens adapted to the inspection camera is fixedly embedded inside the protective frame. A blower mechanism is provided on one side wall of the protective box. The blower mechanism is used to blow air onto the surface of the transparent lens. A cleaning mechanism is installed inside the protective frame. The cleaning mechanism is used to wipe the fog off the surface of the transparent lens.

[0012] Preferably, an absorbent body is fixedly installed on the inner wall of the circular groove, and the absorbent body is in contact with the outer wall of the protective frame.

[0013] Preferably, the blower mechanism includes an air storage box, which is fixed to one side wall of the protective box. Multiple blowers are fixedly connected in a linear array on the side of the air storage box away from the protective box, and multiple U-shaped air supply pipes are fixedly connected in a linear array on the side of the air storage box near the protective box. Air jets are fixedly connected to both ends of each U-shaped air supply pipe, and two air jets on the same U-shaped air supply pipe are located on the inner and outer sides of the lens, respectively.

[0014] Preferably, the cleaning mechanism includes a connecting seat, which is fixed to the inner top surface of the protective box. A groove is provided on the side of the connecting seat near the lens. A second motor is fixed on one side wall of the connecting seat. The output shaft of the second motor extends through the groove and is fixed with a threaded rod. A threaded seat is threaded to the outer wall of the threaded rod. A mist wiping mechanism is provided at the end of the threaded seat. After the lens rotates 180 degrees, the mist wiping mechanism is used to quickly wipe away the mist on the lens.

[0015] Preferably, the mist wiping mechanism includes a connecting rod, which is rotatably inserted into the top of the threaded seat. The bottom of the connecting rod passes through the bottom of the threaded seat. A retaining seat is fixed to the bottom of the connecting rod. The outer wall of the retaining seat has grooves arranged in a circumferential array. Multiple wiping cottons are vertically linearly connected inside all the grooves. A fixing rod is vertically slidably inserted between all the wiping cottons located inside the same groove. The top of all the wiping cottons is fixedly connected to the outer wall of the fixing rod.

[0016] Preferably, a gear is fixed to the top of the connecting rod, and a rack is fixed to the side of the connecting seat near the gear, with the gear meshing with the rack.

[0017] Preferably, the top of each of the topmost wiping cotton is fixed with a support plate, all of the support plates are vertically slidably connected to the inside of the groove, the top of all the support plates are fixed with a rotating disk, the top of the rotating disk is rotatably connected with a lower slide plate, a spring is fixed between the rotating disk and the card seat, the spring is sleeved on the outer wall of the connecting rod, and a reciprocating pushing mechanism is provided between the lower slide plate and the connecting seat. When the lower slide plate moves laterally, the reciprocating pushing mechanism is used to push the lower slide plate to move up and down reciprocally.

[0018] Preferably, the reciprocating pushing mechanism includes a trigger block and a trigger plate. The trigger block is fixed to the side wall of the connecting seat near the trigger plate, and the trigger plate is fixed to the side wall of the lower slide plate near the connecting seat. An elastic telescopic rod is fixed to the top of the trigger plate, and the telescopic end of the elastic telescopic rod is fixedly connected to the threaded seat.

[0019] Preferably, the card holder has an internal cavity, and the cavity has a circular array of through slots equal in number to the number of wiping cotton. All the through slots are connected to the cavity. Multiple electromagnets are fixed in a vertical linear array inside the cavity. An iron block is placed below each electromagnet and is slidably connected to the inner wall of the cavity. Multiple pushing blocks corresponding to the through slots are fixed in a circular array on the outer periphery of each iron block. All the pushing blocks pass through the through slots and are fixedly connected to the bottom of the adjacent wiping cotton. Two pressure sensors are fixed to the bottom of the rack, and the two pressure sensors are electrically connected to the two electromagnets.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention, through the setting of a fog removal mechanism, firstly protects the obstacle avoidance camera, preventing fog from forming on the surface of the camera lens, and then removes the fog generated on the fog removal mechanism, thereby enabling the obstacle avoidance camera to better detect the environment near the railway with clear images.

[0022] 2. The present invention, through the setting of the cleaning mechanism, helps to avoid the situation where water mist penetrates the cleaning mechanism when wiping the lens outside the protective frame, causing the cleaning mechanism to absorb moisture even when not in operation and affecting the wiping effect. It helps to remove water mist from the lens that rotates into the protective box, and helps to keep both sides of the lens clean, thereby enabling the patrol camera to better observe the situation near the railway.

[0023] 3. The present invention uses wiping cotton, which can be replaced with different wiping cotton, thereby facilitating better wiping and adsorption of the transparent lens and quickly removing water mist from the transparent lens. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram (partial view) of the second overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the camera body structure of the present invention;

[0027] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0028] Figure 5 This is a schematic diagram of the structure of the present invention after cross-section along the protective box;

[0029] Figure 6 This is a structural schematic diagram of the present invention from another perspective after being viewed in section along the protective box;

[0030] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0031] Figure 8 This is a schematic diagram of the connection between the first motor and the viewing lens of the present invention;

[0032] Figure 9 This is a schematic diagram of the connection between the protective box and the connecting seat of the present invention;

[0033] Figure 10 This is a schematic diagram of the structure of the protective box of the present invention;

[0034] Figure 11 This is a schematic diagram of the structure of the present invention along the cross-section of the protective box;

[0035] Figure 12 This is a schematic diagram of the connection between the connector and the second motor of the present invention;

[0036] Figure 13 For the present invention Figure 12 Enlarged structural diagram at point C;

[0037] Figure 14 For the present invention Figure 12 Enlarged structural diagram at point D;

[0038] Figure 15 This is a schematic diagram of the connection between the connector and the second motor from another perspective.

[0039] Figure 16 For the present invention Figure 15 Enlarged structural diagram at point E;

[0040] Figure 17 This is a schematic diagram of the structure of the present invention along the cross-section of the card holder.

[0041] In the diagram: 1. Fuselage; 2. Arm; 3. Landing feet; 4. Connecting frame; 5. Obstacle avoidance camera; 6. Inspection camera; 7. Focusing camera; 8. Connecting plate; 9. Protective box; 10. Circular groove; 11. First motor; 12. Protective frame; 13. Transparent lens; 14. Water intake body; 15. Air storage box; 16. Fan; 17. U-shaped air duct; 18. Jet nozzle; 19. Connecting seat; 20. Slide; 21. 22. Second motor; 23. Threaded rod; 24. Threaded seat; 25. Connecting rod; 26. Card holder; 27. Wiping cotton; 28. Fixing rod; 29. ​​Gear; 30. Spring; 31. Rack; 32. Support plate; 33. Lower slide plate; 34. Trigger block; 35. Trigger plate; 36. Rotor; 37. Camera body; 38. Rotary disk; 39. Elastic telescopic rod; 40. Electromagnet; 41. Pressure sensor; 42. Iron block. Detailed Implementation

[0042] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0043] like Figures 1 to 17 The image shows a railway inspection camera information collection drone, which includes a fuselage 1, with arms 2 fixedly installed on both sides of the fuselage 1. Rotors 35 are symmetrically arranged on the top of each arm 2, and landing gear 3 is fixedly installed on the bottom of each arm 2. Two connecting frames 4 are symmetrically fixedly installed on the bottom of the fuselage 1, and a camera body 36 is fixedly installed between the two connecting frames 4. An obstacle avoidance camera 5 is fixedly installed on one side of the camera body 36, and an inspection camera 6 and a focusing camera 7 are fixedly installed on the side walls of the camera body 36, respectively.

[0044] The obstacle avoidance camera 5 is used to detect obstacles during the cruise and feed the obstacle information back to the drone for avoidance.

[0045] The inspection camera 6 is used to conduct video inspections of the environment near the railway and to feed back the environmental information to the operator.

[0046] The focusing camera 7 is used to focus on target information and zoom in or out on the image when an anomaly is detected during patrol.

[0047] A connecting plate 8 is fixed to the bottom of the camera body 36. A fog-removing mechanism is provided between the connecting plate 8 and the camera body 36 to prevent water fog from forming on the lens of the camera. During operation, to collect information about the area near the railway, inspection drones are typically used. However, in humid weather, the camera lens may become blurry during drone patrols, affecting work progress. This invention solves these problems. Specifically, during inspection, if the obstacle avoidance camera 5 detects an obstacle on the flight path, it feeds this information back to the drone's control system, which then controls the drone to either increase or decrease altitude to avoid the obstacle. The control system in the drone will control the inspection camera 6 to adjust its own camera angle, thereby ensuring that the inspection range of the inspection camera 6 is within a suitable range. If an abnormality is detected during the patrol, the focusing camera 7 will focus on the target information and can choose to zoom in or out of the captured image, so that the target information can be presented to the operator more clearly. Through the division of labor and cooperation between different cameras, it is beneficial to better inspect the area near the railway. If the weather is humid during the inspection, the fog removal mechanism will first protect the obstacle avoidance camera 5 to prevent fog from forming on the surface of the lens of the obstacle avoidance camera 5, and will also remove the fog generated on the fog removal mechanism, so that the obstacle avoidance camera 5 can better detect the environment near the railway clearly.

[0048] In one embodiment of the present invention, the defogging mechanism includes a protective box 9, which is fixed to the top of a connecting plate 8. A circular groove 10 is provided on one side wall of the protective box 9. A first motor 11 is fixedly installed on the top of the protective box 9. The output shaft of the first motor 11 passes through the protective box 9 and is fixed to a protective frame 12. The protective frame 12 is embedded inside the circular groove 10. A viewing lens 13 adapted to the inspection camera 6 is fixedly embedded inside the protective frame 12. A blower mechanism is provided on one side wall of the protective box 9 for blowing air onto the surface of the viewing lens 13. A cleaning mechanism is installed inside the protective frame 12 for wiping the defogging on the surface of the viewing lens 13. During operation, the first motor 11 and the blower mechanism are started. The first motor 11 drives the protective frame 12 to rotate, and the protective frame 12 drives the viewing lens 13 to rotate, thereby causing the defogging mechanism to... The lens 13 with fog adhering to its outer surface rotates into the protective box 9 for defogging, causing the lens 13 without fog to rotate to the outside. This allows the fog adhering to the surface of the lens 13 to be wiped away after it is flipped into the protective box 12. This helps to avoid the situation where fog seeps into the cleaning mechanism when the cleaning mechanism is placed outside the protective box 12 to wipe the lens 13, causing the cleaning mechanism to absorb moisture even when it is not in operation, thus affecting the wiping effect. After the lens 13 is flipped, a blower mechanism simultaneously delivers cold air to both sides of the lens 13. One side of the protective box 9 has an air outlet through a one-way valve, which helps to remove the water fog on the lens 13 that has rotated into the protective box 9. This helps to keep both sides of the lens 13 clean, thus allowing the patrol camera to better observe the situation near the railway.

[0049] In one embodiment of the present invention, a water-absorbing body 14 is fixedly installed on the inner wall of the circular groove 10, and the water-absorbing body 14 is in contact with the outer wall of the protective frame 12. During operation, because the protective frame 12 can rotate, some moisture may flow from the gap between the circular groove and the outer wall of the protective frame 12 into the interior of the protective box 9, which will cause the interior of the protective box 9 to be damp, resulting in water fog on the inner wall of the lens 13. This embodiment of the present invention can solve the above problems. The specific implementation is as follows: a water-absorbing body 14 is provided on the outer wall of the protective frame 12. The water-absorbing body 14 is specifically water-absorbing cotton, so that when moisture passes through the gap, it will be absorbed by the water-absorbing body 14, which helps to maintain the dryness inside the protective box 9 and helps to avoid the fogging of the lens 13 inside the protective box 9.

[0050] In one embodiment of the present invention, the blower mechanism includes an air storage box 15, which is fixed to one side wall of the protective box 9. Multiple blowers 16 are fixedly connected in a linear array on the side of the air storage box 15 away from the protective box 9, and multiple U-shaped air ducts 17 are fixedly connected in a linear array on the side of the air storage box 15 closer to the protective box 9. Air jets 18 are fixedly connected to both ends of each U-shaped air duct 17, with two air jets 18 on the same U-shaped air duct 17 located on the inner and outer sides of the viewing lens 13, respectively. During operation, the blowers 16 are activated, supplying air into the air outlet box. Then, the air is sprayed out through the U-shaped air duct 17 and the jet nozzle 18. The cold air sprayed out by the two jet nozzles 18 will first dry the water vapor on the surface of the lens 13, and then form an air curtain on the lens 13, making it difficult for warm air to come into contact with the lens 13. On the one hand, this helps to reduce the recurrence of water fog on the lens 13 located outside the protective box 9, and on the other hand, it helps to eliminate water fog on the lens 13 located inside the protective box 9, so that both sides of the lens 13 remain clear, which is conducive to the rapid and clear collection of information near the railway by the patrol camera.

[0051] In one embodiment of the present invention, the cleaning mechanism includes a connecting seat 19, which is fixed to the inner top surface of the protective box 9. A groove 20 is provided on the side of the connecting seat 19 near the viewing lens 13. A second motor 21 is fixed to one side wall of the connecting seat 19. The output shaft of the second motor 21 extends through the groove 20 and is fixed with a threaded rod 22. A threaded seat 23 is threaded to the outer wall of the threaded rod 22. A mist wiping mechanism is provided at the end of the threaded seat 23. After the viewing lens 13 rotates 180 degrees, the mist wiping mechanism is used to quickly wipe away the mist on the viewing lens 13. During operation, after the viewing lens 13 with mist adhering to it rotates into the protective box 9, although cold air is delivered through the jet nozzle 18 to remove the mist adhering to it... While water mist can be eliminated, if the water mist on the lens 13 cannot be cleaned quickly, it will still affect the camera's acquisition effect. This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: After the lens 13 rotates 180 degrees, the second motor 21 is started. The second motor 21 drives the threaded rod 22 to rotate. Because the two side walls of the threaded seat 23 are limited by the inside of the slide groove 20, the rotation of the threaded rod 22 will drive the threaded seat 23 to move along the slide groove 20. The movement of the threaded seat 23 will drive the mist wiping mechanism to move, which will help the mist wiping mechanism to quickly wipe away the mist on the lens 13, thereby reducing the time that the mist stays on the lens 13 and reducing the interference of the mist on the camera's field of view.

[0052] In one embodiment of the present invention, the mist wiping mechanism includes a connecting rod 24, which is rotatably inserted into the top of a threaded seat 23. The bottom of the connecting rod 24 penetrates the bottom of the threaded seat 23. A retaining seat 25 is fixed to the bottom of the connecting rod 24. The outer wall of the retaining seat 25 has grooves arranged in a circumferential array. Multiple wiping cotton balls 26 are vertically linearly connected inside all the grooves. A fixing rod 27 is vertically slidably inserted between all the wiping cotton balls 26 located in the same groove. The top of all the wiping cotton balls 26 is connected to the fixing rod 27. The outer wall of rod 27 is fixedly connected; during operation, the movement of threaded seat 23 will drive the movement of connecting rod 24, the movement of connecting rod 24 will drive the movement of card seat 25, and card seat 25 will drive the movement of wiping cotton 26. Thus, wiping cotton 26 will wipe and absorb the water mist on the lens 13, so that some larger water molecules are absorbed by wiping cotton 26. Therefore, when the air jet head 18 blows air on the wiped lens 13, it will help accelerate the diffusion of water molecules to the surroundings, thus helping to quickly remove the water mist on the lens 13.

[0053] In one embodiment of the present invention, a gear 28 is fixed to the top of the connecting rod 24, and a rack 30 is fixed to the side of the connecting seat 19 near the gear 28. The gear 28 meshes with the rack 30. During operation, if only a wiping cotton 26 is used to wipe the lens 13, the lens 13 needs to be wiped from time to time during the cruise. As a result, after the wiping cotton 26 is saturated with water, the wiping effect may be poor, which will slow down the efficiency of removing water mist. This embodiment of the present invention can solve the above problems. The specific implementation is as follows: the connecting rod 24 moves, which drives the gear 28 to move. During the movement, the gear 28 meshes with the rack 30 and drives itself to rotate. The rotation of the gear 28 will drive the connecting rod 24 to rotate. The rotation of the connecting rod 24 will drive the card seat 25 to rotate. The rotation of the card seat 25 will drive the wiping cotton 26 to rotate. By changing between different wiping cotton 26, it is beneficial to better wipe and absorb the lens 13, and to quickly absorb the water mist on the lens 13.

[0054] In one embodiment of the present invention, the top of the topmost wiping cotton 26 is fixed with a support plate 31. All support plates 31 are vertically slidably connected to the inside of the groove. The top of all support plates 31 is fixed with a rotating disk 37. The top of the rotating disk 37 is rotatably connected with a lower slide plate 32. A spring 29 is fixed between the rotating disk 37 and the card seat 25. The spring 29 is sleeved on the outer wall of the connecting rod 24. A reciprocating pushing mechanism is provided between the lower slide plate 32 and the connecting seat 19. When the lower slide plate 32 moves laterally, the reciprocating pushing mechanism is used to push the lower slide plate 32 to move up and down reciprocally. During operation, because the side of the lens 13 with water mist adhering to it is initially located on the outside, when it rotates into the inside of the protective box 9, some dust and impurities may adhere to the water mist. If only the lens is rotated to clean it... Sweeping may not effectively remove some adhering dust, thus affecting the camera's shooting effect. The present invention can solve the above problems. The specific implementation method is as follows: the horizontal movement of the card holder 25 will drive the support plate 31 to move. The movement of the support plate 31 will drive the lower slide plate 32 to move via the rotating disk 37. During the horizontal movement of the lower slide plate 32, the reciprocating push mechanism will drive the rotating disk 37 to move up and down reciprocally via the lower slide plate 32. The rotating disk 37 will drive the support plate 31 to move back and forth. The support plate 31 will drive the wiping cotton 26 to move back and forth. The dust is cleaned by the friction generated between the up and down movement of the wiping cotton 26 and the perspective lens 13. In addition, by switching between different wiping cottons 26, it is easier to clean the dust adhering to the perspective lens 13.

[0055] In one embodiment of the present invention, the reciprocating pushing mechanism includes a trigger block 33 and a trigger plate 34. The trigger block 33 is fixed to the side wall of the connecting seat 19 near the trigger plate 34, and the trigger plate 34 is fixed to the side wall of the lower slide plate 32 near the connecting seat 19. An elastic telescopic rod 38 is fixed to the top of the trigger plate 34, and the telescopic end of the elastic telescopic rod 38 is fixedly connected to the threaded seat 23. During operation, the lower slide plate 32 moves, driving the trigger plate 34 to move. When the trigger plate 34 contacts the trigger block 33 during its lateral movement, the trigger block 33... Guided by the inclined surface, the trigger plate 34 and the lower slide plate 32 will move downwards, and the trigger plate 34 will drive the elastic telescopic rod 38 to extend and retract. The position of the trigger plate 34 and the lower slide plate 32 is restricted by the setting of the elastic telescopic rod 38. The downward movement of the lower slide plate 32 will drive the support plate 31 to move downwards and compress the spring 29. When the trigger plate 34 moves to the inclined surface on the other side of the trigger block 33, the spring 29 will release the spring force to push the lower slide plate 32 to return to its original position. The lower slide plate 32 will drive the trigger plate 34 to return to its original position, thereby realizing vertical reciprocating movement.

[0056] In one embodiment of the present invention, the card holder 25 has an internal cavity. Inside the cavity, a circular array of through slots, equal in number to the number of wiping cotton 26, is formed. All through slots communicate with the cavity. Multiple electromagnets 39 are fixed in a vertical linear array inside the cavity. Below each electromagnet 39, an iron block 41 is provided, slidably connected to the inner wall of the cavity. Multiple pushing blocks, corresponding to the through slots, are fixed in a circular array around the outer periphery of each iron block 41. All pushing blocks pass through the through slots and are fixedly connected to the bottom of adjacent wiping cotton 26. Two pressure sensors 40 are fixed to the bottom of the rack 30. 40 is electrically connected to two electromagnets 39; during operation, when the threaded seat 23 is in its initial position, it is in contact with the pressure sensor 40. When the pressure sensor 40 receives a pressure signal, it energizes the electromagnets 39 to generate a magnetic attraction force, causing the iron block 41 to move upward under the magnetic attraction force. The iron block 41 drives the push block to move upward, which in turn pushes the bottom of the wiping cotton 26 upward, thus folding and squeezing the wiping cotton 26. This facilitates the air ejected from the jet nozzle 18 to blow from the through groove onto the surface of the lens. Subsequently, the threaded seat 23 is driven to move towards the air outlet. After the pressure sensor 40 is disengaged, the electromagnet 39 loses its magnetic force and the iron block 41, under the action of gravity, will drive the wiping cotton 26 downward, thus tautning the wiping cotton 26, which is beneficial for wiping the surface of the lens 13 during the movement. When the threaded seat 23 moves to the predetermined position and contacts another pressure sensor 40, before the threaded seat 23 reaches the air outlet, the pressure sensor 40, upon receiving the pressure signal, will energize the electromagnet 39 again, thus folding and squeezing the wiping cotton 26 again. Since the fixing rod 27 is inserted inside the wiping cotton 26, the bottom of the wiping cotton 26... When the part is pushed upward, the wiping cotton 26 itself cannot bend due to the limitation of the fixing rod 27, which facilitates the overall compression and folding of the wiping cotton 26, squeezing out the water absorbed in the wiping cotton 26, which helps to expel the water. Then the threaded seat 23 continues to be driven to move towards the air outlet, so that the threaded seat 23 is disengaged from the pressure sensor 40 again, and the wiping cotton 26 is straightened again. The threaded seat 23 stops at the air outlet, because the air outlet will discharge the air source sprayed by the jet head 18 through the one-way valve, thereby using the air flow to dry the squeezed wiping cotton 26, which is beneficial for the next wiping.

[0057] Working principle of this invention: In practice, to collect information about the area near railways, inspection drones are typically used. However, in humid weather, the drone's camera lens may capture unclear images during its flight, affecting work progress. This invention solves these problems. Specifically, during inspection, if the obstacle avoidance camera 5 detects an obstacle in its flight path, it feeds this information back to the drone's control system. This system then controls the drone to either increase or decrease its altitude to avoid the obstacle. During this avoidance process, the drone's control system adjusts the camera lens 6. The angle is adjusted to ensure that the inspection range of the inspection camera 6 is within a suitable range. If an abnormality is found during the patrol, the focusing camera 7 will focus on the target information and can zoom in or out on the captured image, so that the target information can be presented to the operator more clearly. Through the division of labor and cooperation between different cameras, it is beneficial to better inspect the area near the railway. If the weather is humid during the inspection, the fog removal mechanism will first protect the obstacle avoidance camera 5 to prevent fog from forming on the surface of the lens of the obstacle avoidance camera 5, and will also remove the fog generated on the fog removal mechanism, so that the obstacle avoidance camera 5 can better detect the environment near the railway clearly.

[0058] 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 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 the claimed invention.

Claims

1. A railway inspection camera information collection unmanned aerial vehicle, comprising a fuselage (1), characterized in that, The both sides of the fuselage (1) are fixedly installed with machine arms (2), the top of the two machine arms (2) is symmetrically provided with rotors (35), the bottom of the two machine arms (2) is fixedly installed with landing legs (3), the bottom of the fuselage (1) is symmetrically fixedly installed with two connecting frames (4), two camera bodies (36) are fixedly installed between the two connecting frames (4), one side of the camera body (36) is fixedly installed with an obstacle avoidance camera (5), the two side walls of the camera body (36) are respectively fixedly installed with a patrol camera (6) and a focusing camera (7); The obstacle avoidance camera (5) is used for detecting obstacles in the cruising process and feeding back obstacle information to the unmanned aerial vehicle for avoidance; The patrol camera (6) is used for photographing and patrolling the environment near the railway and feeding back the environmental information to the operator; The focusing camera (7) is used for focusing on the target information while enlarging or reducing the picture when an abnormal situation is found in the cruising process; The bottom of the camera body (36) is fixedly installed with a connecting plate (8), a fog water eliminating mechanism is arranged between the connecting plate (8) and the camera body (36), and the fog water eliminating mechanism is used for avoiding water mist on the mirror surface of the camera; The fog water eliminating mechanism comprises a protection box (9), the protection box (9) is fixed to the top of the connecting plate (8), a circular groove (10) is formed in one side wall of the protection box (9), a first motor (11) is fixedly installed on the top of the protection box (9), a protection frame (12) is fixed to the output shaft end of the first motor (11) penetrating through the protection box (9), the protection frame (12) is embedded in the inside of the circular groove (10), a perspective lens (13) matched with the patrol camera (6) is fixedly embedded in the inside of the protection frame (12), a blowing mechanism is arranged on one side wall of the protection box (9), the blowing mechanism is used for blowing air on the surface of the perspective lens (13), and a cleaning mechanism is installed in the inside of the protection frame (12), the cleaning mechanism is used for wiping the fog water on the surface of the perspective lens (13).

2. The unmanned aerial vehicle for collecting image information for railway inspection according to claim 1, characterized in that, A water absorbing body (14) is fixedly installed on the inner wall of the circular groove (10) and is attached to the outer wall of the protection frame (12).

3. The unmanned aerial vehicle for collecting image information of railway inspection according to claim 1, characterized in that, The blowing mechanism comprises a wind storage box (15), the wind storage box (15) is fixed to one side wall of the protection box (9), a plurality of air fans (16) are fixedly and linearly communicated on the side of the wind storage box (15) away from the protection box (9), a plurality of U-shaped air conveying pipes (17) are fixedly and linearly communicated on the side of the wind storage box (15) close to the protection box (9), air jet heads (18) are fixedly communicated at both ends of the U-shaped air conveying pipe (17), and the two air jet heads (18) on the same U-shaped air conveying pipe (17) are respectively located on the inner and outer sides of the perspective lens (13).

4. The unmanned aerial vehicle for collecting video information for railway inspection according to claim 1, characterized in that, The cleaning mechanism comprises a connecting seat (19) fixed to the inner top surface of the protection box (9), a sliding groove (20) is formed on one side of the connecting seat (19) close to the perspective lens (13), a second motor (21) is fixed on one side wall of the connecting seat (19), the output shaft end of the second motor (21) extends through the sliding groove (20) and is fixed with a threaded rod (22), the outer wall of the threaded rod (22) is threadedly connected with a threaded seat (23), and a fog wiping mechanism is arranged at the end of the threaded seat (23). After the perspective lens (13) rotates by 180 degrees, the fog wiping mechanism is used for quickly wiping off the fog on the perspective lens (13).

5. The unmanned aerial vehicle for collecting video information for railway inspection according to claim 4, characterized in that, The fog wiping mechanism comprises a connecting rod (24) rotatably inserted into the top of the threaded seat (23), the bottom of the connecting rod (24) penetrates the bottom of the threaded seat (23), the bottom of the connecting rod (24) is fixed with a clamping seat (25), the outer wall of the clamping seat (25) is circumferentially arranged with grooves, a plurality of wiping cots (26) are vertically and linearly arranged in the grooves, and a fixing rod (27) is vertically and linearly arranged between the wiping cots (26) in the same groove.

6. The unmanned aerial vehicle for collecting video information for railway inspection according to claim 5, characterized in that, The top end of the connecting rod (24) is fixed with a gear (28), one side of the connecting seat (19) close to the gear (28) is fixed with a rack (30), and the gear (28) is engaged with the rack (30).

7. The unmanned aerial vehicle for collecting video information for railway inspection according to claim 5, characterized in that, The top of the wiping cotton (26) is fixed with a support plate (31), the support plate (31) is vertically and linearly arranged in the groove, and the top end of the support plate (31) is fixed with a rotating disc (37). The rotating disc (37) is rotatably connected with a lower sliding plate (32), a spring (29) is fixed between the rotating disc (37) and the clamping seat (25), the spring (29) is sleeved on the outer wall of the connecting rod (24), a reciprocating pushing mechanism is arranged between the lower sliding plate (32) and the connecting seat (19), and the reciprocating pushing mechanism is used for pushing the lower sliding plate (32) to reciprocate up and down when the lower sliding plate (32) moves horizontally.

8. The unmanned aerial vehicle for collecting video information for railway inspection according to claim 7, characterized in that, The reciprocating pushing mechanism comprises a trigger block (33) and a trigger plate (34), the trigger block (33) is fixed on one side wall of the connecting seat (19) close to the trigger plate (34), the trigger plate (34) is fixed on one side wall of the lower sliding plate (32) close to the connecting seat (19), the top of the trigger plate (34) is fixed with an elastic telescopic rod (38), and the telescopic end of the elastic telescopic rod (38) is fixedly connected with the threaded seat (23).

9. The unmanned aerial vehicle for collecting video information for railway inspection according to claim 6, characterized in that, The inside of the card seat (25) is provided with a cavity, the inside of the cavity is provided with a plurality of through grooves in a circumferential array and equal to the number of the wiping cotton (26), all the through grooves are communicated with the cavity, a plurality of electromagnets (39) are fixed in the cavity in a vertical linear array, the lower side of all the electromagnets (39) is provided with an iron block (41), the iron block (41) is in sliding connection with the inner wall of the cavity, the outer periphery of all the iron blocks (41) is circumferentially fixed with a plurality of push blocks corresponding to the through grooves, all the push blocks are fixedly connected with the bottom of the adjacent wiping cotton (26) after penetrating through the through grooves, the bottom of the rack (30) is fixed with two pressure sensors (40), and the two pressure sensors (40) are electrically connected with the two electromagnets (39).

Images