Remote sensing monitoring unmanned aerial vehicle along loess plateau road

Abstract

The invention discloses a remote sensing monitoring unmanned aerial vehicle along a loess plateau road, and relates to the technical field of unmanned aerial vehicles. The remote sensing monitoring unmanned aerial vehicle comprises a fuselage, a camera is carried at the bottom, and a power part for driving the fuselage to fly is arranged on the side; the fixing table is arranged in the machine body, a containing cavity is formed in the fixing table, a piston assembly is arranged in the containing cavity, and the piston assembly at least comprises an air cylinder part with an air inlet / outlet port, a sliding plug part capable of sliding in the axial direction of the air cylinder part in a reciprocating mode and a driving part connected with the power component to drive the sliding plug part to move in a reciprocating mode; the sliding plug part continuously supplies air to the air outlet port in the reciprocating sliding process; and an annular air cavity is formed in the air blowing ring, and the air blowing ring is arranged on the front side of the camera. Aiming at the characteristic of heavy wind and sand in loess plateau areas, the camera is protected by forming the blowing air curtain, sand and dust are effectively prevented from being attached to a lens, erosion of the sand and sand to the lens is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicles, and in particular to a remote sensing monitoring unmanned aerial vehicle along a road in the Loess Plateau. Background Art

[0002] Due to the special topography and geological conditions of the Loess Plateau, road construction and maintenance face many challenges, such as road slope collapse caused by soil erosion and road surface damage caused by rain erosion. Timely and accurate monitoring of roads along the Loess Plateau is crucial to ensuring road safety and extending road service life.

[0003] Traditional manual road monitoring methods face many difficulties in the Loess Plateau, such as complex terrain, inconvenient transportation, low monitoring efficiency and certain safety risks. Most of the existing remote sensing monitoring methods use general drones and are not optimized for the characteristics of the Loess Plateau. The climate in the Loess Plateau is dry and the wind and sand are strong. The protection performance of ordinary drones is insufficient. On the one hand, sand and dust will adhere to the lens of the camera equipment, resulting in blurred pictures, reducing image quality and affecting the accurate judgment of road conditions; on the other hand, long-term wind and sand erosion will damage the lens of the camera equipment, making the camera equipment unable to work normally and shortening the overall service life of the equipment.

[0004] In view of this, this application is hereby filed. Summary of the invention

[0005] The purpose of the present invention is to provide a remote sensing monitoring drone along the roads of the Loess Plateau to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides a remote sensing monitoring drone along the Loess Plateau road, comprising a fuselage, a camera mounted on the bottom, and a power component for driving the fuselage to fly arranged on the side; characterized in that it also includes:

[0007] A fixed platform is arranged in the fuselage, and has a receiving cavity inside thereof, wherein a piston assembly is arranged in the receiving cavity, wherein the piston assembly at least comprises a cylinder portion having an air inlet / air outlet port, and a movable portion that can reciprocate along the axial direction of the cylinder portion, wherein the movable portion is connected to a driving end of a power component, and is used for the movable portion to continuously supply air to the air outlet port during the reciprocating sliding process;

[0008] A blowing ring has an annular air cavity inside, the blowing ring is arranged on the front side of the camera, and the ring mouth is at least covered on the outside of the lens of the camera, and the end face of the blowing ring is provided with multiple air outlets connected to the air outlet port, which are used to transport the gas from the air outlet port to the air outlet on the blowing ring to form an air curtain.

[0009] Further:

[0010] The activity section includes:

[0011] The sliding plug part includes a piston plate, which is located in the cylinder part and can slide along the inner wall of the cylinder part. One side of the piston plate is connected to and extends out of the cylinder part. The piston rod is provided with a return spring whose two ends are respectively connected to the piston plate and the inner wall of the cylinder part.

[0012] A driving gear is connected to the driving end of the power component, and a driven gear meshing with the driving gear is also rotatably installed in the fuselage;

[0013] A rotating disk is coaxially arranged above the driven gear, a pin groove is provided on the top surface of the rotating disk, a pin rod which can slide along the inner wall of the pin groove is provided inside the pin groove, and one end of the piston rod extending outside the cylinder body is connected to the pin rod;

[0014] The pin groove is composed of two symmetrically arranged and connected grooves, and the distance between the inner wall of the groove and the axis of the driven gear increases or decreases in the rotation direction.

[0015] Further:

[0016] An annular cavity is provided inside the fixing platform, an air jet ring is provided in the annular cavity and rotates around its axis, and an air supply port for connecting the annular cavity with the outside is provided on the outer wall of the fixing platform, and the air supply port is connected with the air outlet port of the air cylinder;

[0017] A plurality of gas delivery pipelines are arranged on the top surface of the fixed platform, one end of the gas delivery pipeline is connected to the annular cavity, and the other end is connected to a blowing pipe; the other end of the blowing pipe is connected to the annular air cavity inside the blowing ring;

[0018] Wherein, the blowing pipe comprises an air inlet portion, an air delivery portion and a pressurizing portion which are connected in sequence.

[0019] Further:

[0020] The booster unit comprises:

[0021] The box body is connected between the air inlet part and the air delivery part, has an open top and a gas compression chamber inside, and a box cover is provided on the top surface of the box body to seal the open opening; an air inlet hole connected to the air inlet part is provided at one end, and an air outlet hole connected to the air delivery part is provided at the other end;

[0022] A first partition is arranged along the length direction of the bottom wall of the box body, one end of which is connected to the inner side wall of the box body, and the other end is connected to a second partition arranged along the width direction of the bottom wall of the box body. The gas compression chamber is divided into a first chamber, a second chamber and a third chamber by the first partition and the second partition, and the first chamber and the second chamber are bilaterally symmetrical;

[0023] The valve groove is arranged on the inner bottom wall of the box cover. Two injection holes are arranged inside the box cover. One end of the injection hole is connected with the valve groove, and the other end is connected with the third chamber. A blocking member for alternately blocking the injection holes is also arranged inside the valve groove.

[0024] Further:

[0025] The blocking member comprises:

[0026] Two limiting rods are symmetrically arranged on the side wall of the second partition, one of which extends to the inside of the first partition, and the other limiting rod extends to the inside of the second chamber;

[0027] The first valve plate is an arc-shaped plate structure, located inside the first chamber, with an outer wall in contact with the valve slot and movable in the valve slot;

[0028] The second valve plate is an arc-shaped plate structure, located inside the second chamber, with its outer wall in contact with the valve slot and movable inside the valve slot;

[0029] Wherein, valve holes are provided on the first valve plate and the second valve plate, and the first valve plate and the second valve plate are movably sleeved on the limit rod through the valve holes.

[0030] Further:

[0031] A plurality of injection air channels distributed along the circumference of the injection ring are arranged on the outer wall surface of the injection ring, one end of the injection air channel is connected with the annular cavity, and the other end of the injection air channel extends radially along the side wall of the injection ring and passes through the bottom surface of the injection ring.

[0032] Further:

[0033] The outer wall surface of the jet ring is provided with a plurality of fan plates distributed along its circumference. The fan plates are extended along the radial direction of the jet ring, one side of the fan plates is fixed to the wall surface of the jet ring, and the other side walls are in contact with the inner wall of the annular cavity.

[0034] Further:

[0035] The fixing platform is provided with an inclined groove, a rotating ring is rotatably installed inside the inclined groove, a plurality of inclined holes connected with the injection air duct are arranged on the outer wall of the jet ring extending to the lower part of the fuselage, a dust cleaning pipe is installed inside the inclined hole, and a dust cleaning hole arranged toward the camera is arranged on the end surface of the dust cleaning pipe extending to the outside, a valve pipe is arranged inside the dust cleaning pipe for sealing and sliding along its length direction, one end of the valve pipe is connected with a supporting spring, the supporting spring extends into the inclined groove and is fixed to the outer wall of the rotating ring, the other end of the valve pipe is connected with a permanent magnetic ring, an electromagnetic ring is arranged on the inner wall of the dust cleaning pipe, and the electromagnetic ring and the permanent magnetic ring are magnetically repelled when power is turned on;

[0036] Among them, the valve pipe is provided with a through hole and a guide channel which are connected to the injection airway. The through hole is opened through the valve pipe, and the guide channel includes a vertical part opened along the radial direction of the valve pipe and a conducting part opened along the axial direction of the valve pipe. One end of the conducting part is connected to the vertical part, and the other end is connected to the cleaning pipe.

[0037] Further:

[0038] A mounting seat is arranged on the bottom surface of the fixing platform, a sealed cavity is formed on the top surface of the mounting seat, an adjustment seat is arranged and installed on the bottom surface of the mounting seat, and the video camera is connected to the fixing platform via the adjustment seat; the bottom end of the gas pipeline extends into the sealed cavity, and the end of the air inlet portion away from the box body extends into the sealed cavity.

[0039] Further:

[0040] The power component includes:

[0041] A cantilever arm is connected to the side wall of the fuselage and extends radially along the fuselage, and its end away from one end of the fuselage is rotatably connected to a propeller;

[0042] The dual-shaft motor is installed inside the cantilever and has two driving ends, one of which is connected to the propeller; the driving gear is connected to the other driving end of the dual-shaft motor.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. In the present invention, the gas generating assembly supplies gas to the annular cavity inside the fixed platform through the gas supply port. The gas enters the jet ring in the annular cavity and is then transported to the blowing pipe through the gas pipeline. After being processed by various parts of the blowing pipe, the gas is finally ejected from the blowing ring to form a protective airflow outside the camera lens to prevent dust from adhering. The gas is used to form an air curtain to protect the camera lens, preventing dust from adhering to the lens and affecting the quality of the captured image. At the same time, it can also reduce the erosion of the lens by wind and sand, thereby extending the service life of the equipment.

[0045] 2. In the present invention, the gas enters the air inlet hole of the box body from the air inlet part, and enters the first chamber. The first valve plate and the second valve plate move in the valve slot under the restriction of the limit rod, and alternately block the injection hole, so that the gas passes through the first chamber, the valve slot, and the injection hole in sequence to enter the third chamber, and then enters the gas delivery part from the air outlet. In this process, the gas compression chamber is separated by the first partition plate and the second partition plate, and the first valve plate and the second valve plate are alternately blocked to achieve gas pressurization; the gas can be effectively pressurized, so that the gas ejected from the blowing ring has a stronger pressure, better resists the invasion of sand and dust on the camera lens, and improves the protection capability of the lens.

[0046] 3. In the present invention, gas enters the annular cavity inside the fixed platform, and the gas in the annular cavity enters the blowing airway and is ejected from the blowing airway to form an air curtain that is arranged around the periphery of the camera and ejected vertically downward. The air curtain is arranged around the periphery of the camera and can protect the camera in all directions. The gas entering the annular cavity will push the fan plate to rotate inside it, and the rotating fan plate will drive the jet ring to rotate in the annular cavity, pushing the gas to flow in the annular cavity and assisting the gas to enter the blowing airway. The presence of the fan plate helps to enhance the fluidity of the gas in the annular cavity, so that the gas can enter the blowing airway more smoothly. At the same time, the jet ring is in a rotating state, which further ensures the uniformity and stability of the air curtain, so that the gas is evenly distributed in the cavity, thereby ensuring that the airflow ejected from the blowing airway is relatively stable.

[0047] When the electromagnetic ring is powered on, it will magnetically repel the permanent magnet ring, and the permanent magnet ring will drive the valve tube to move toward the inside of the inclined groove and compress the supporting spring to make the valve tube slide in the cleaning tube. At this time, the guide channel on the valve tube coincides with the blowing air channel, and the gas enters the inside of the cleaning tube through the guide channel and is sprayed out from the cleaning hole to clean the camera. When the electromagnetic ring is powered off, the supporting spring will reset, the valve tube will move, the guide channel will be disconnected from the blowing air channel, cleaning will stop, and the through hole will reset. This structure realizes the active cleaning function of the camera, can use the formed air curtain for cleaning, and flexibly control the cleaning operation according to needs, further improving the protection effect of the camera, and ensuring that it can continue to take clear pictures in a dusty environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a front view structural schematic diagram of the present invention;

[0049] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0050] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0051] Figure 4 For along Figure 3 Structural diagram of the middle section line AA;

[0052] Figure 5 It is a front structural schematic diagram of the present invention;

[0053] Figure 6 For along Figure 5 Schematic diagram of the structure of the middle section line BB;

[0054] Figure 7It is a schematic diagram of the structure of the gas generating assembly in the present invention;

[0055] Figure 8 It is a schematic diagram of the structure of the jet ring in the present invention;

[0056] Fig. 9 It is a schematic diagram of the cross-sectional front view structure of the jet ring in the present invention;

[0057] Fig.10 It is a structural schematic diagram of the dust cleaning pipe in the present invention;

[0058] Fig.11 It is a structural schematic diagram of the video camera in the present invention;

[0059] Fig.12 It is a schematic diagram of the structure of the blowing pipe in the present invention;

[0060] Fig.13 It is a schematic diagram of the explosion structure of the booster part in the present invention in the front view direction;

[0061] Fig.14 It is a schematic diagram of the explosion structure of the booster part in the present invention when viewed from above.

[0062] In the figure: 1, fuselage; 2, cantilever; 3, propeller; 4, landing gear; 5, camera; 6, dual-axis motor; 7, cylinder; 71, cylinder; 72, one-way air outlet pipe; 73, one-way air inlet pipe; 8, sliding plug; 81, piston plate; 82, piston rod; 83, return spring; 9, driving part; 91, driving gear; 92, driven gear; 93, turntable; 94, pin groove; 95, pin rod; 10, fixed platform; 11, annular cavity; 12, jet ring; 13, jet air duct; 14, fan plate; 15, gas pipeline; 16, mounting seat; 17, sealing cavity; 18, adjustment seat; 19, inclined groove; 20, permanent magnet ring; 2 1. Cleaning pipe; 22. Rotating ring; 23. Support spring; 24. Valve pipe; 25. Cleaning hole; 26. Through hole; 27. Guide channel; 28. Electromagnetic ring; 29. ​​Blowing pipe; 291. Air inlet; 292. Air delivery; 293. Box body; 294. Box cover; 295. Air inlet; 296. Air outlet; 297. Limit rod; 298. First valve plate; 299. Valve hole; 2910. First partition; 2911. Second partition; 2912. First chamber; 2913. Second chamber; 2914. Third chamber; 2915. Valve slot; 2916. Injection hole; 2917. Second valve plate; 30. Blowing ring. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] Embodiment 1:

[0065] See also Figure 1-Figure 14 The present invention provides a technical solution: a remote sensing monitoring drone along the Loess Plateau road, comprising a fuselage 1, with a storage space inside, a camera 5 mounted on the bottom, and a power component for driving the fuselage 1 to fly arranged on the side; and further comprising:

[0066] A fixed platform 10 is arranged in the accommodation space, an annular cavity 11 is opened inside the fixed platform 10, an air injection ring 12 rotating along its axis is arranged in the annular cavity 11, a gas supply port for connecting the annular cavity 11 with the outside is arranged on the outer wall of the fixed platform 10, and a gas generating component is connected to the gas supply port;

[0067] A plurality of gas delivery pipes 15, one end of which is connected to the annular cavity 11, and the other end of which is connected to the blowing pipe 29; the other end of the blowing pipe 29 is connected to a blowing ring 30, and the blowing ring 30 is covered outside the lens of the camera 5;

[0068] The blowing pipe 29 includes an air inlet portion 291, an air delivery portion 292 and a pressurizing portion which are connected in sequence.

[0069] Specifically, the gas generating assembly supplies gas to the annular cavity 11 inside the fixing platform 10 through the gas supply port, the gas enters the jet ring 12 in the annular cavity 11, and then is transported to the blow pipe 29 through the gas pipeline 15, and after being processed by various parts of the blow pipe 29, it is finally ejected from the blow ring 30, forming a protective airflow outside the lens of the camera 5 to prevent sand and dust from adhering;

[0070] The design is based on the characteristics of strong wind and sand on the Loess Plateau. Through the structures such as the jet ring 12, the gas pipeline 15 and the blowing ring 30, gas is used to form an air curtain to protect the lens of the camera 5, so as to prevent sand and dust from adhering to the lens and affecting the quality of the captured image. At the same time, it can also reduce the erosion of the lens by wind and sand and extend the service life of the equipment. The jet pipe 29 is provided with an air inlet part 291, an air delivery part 292 and a pressurizing part, which can effectively process and pressurize the gas ejected by the blowing ring 30 to ensure the stability and protection effect of the air curtain.

[0071] It should be noted that, in actual use, the interior of the fuselage 1 may also be equipped with a remote sensing monitoring system, which is mainly equipped with a high-resolution optical camera, a thermal infrared imager and a laser radar, and is equipped with a data fusion module for integrating the data of each sensor;

[0072] It also uses a dual-frequency GPS / Beidou dual-mode positioning module and an adaptive communication antenna. The adaptive communication antenna can automatically adjust the antenna direction according to the signal strength, and the communication system has anti-interference capabilities.

[0073] A landing gear 4 is provided at the bottom of the fuselage 1 and is made of elastic material. A plurality of wind direction sensors and attitude sensors are provided on the fuselage 1 and are connected to a flight control system.

[0074] See also Fig.11 , Fig.12 , Fig.13 and Fig.14 , the booster section includes,

[0075] The box body 293 is connected between the air inlet part 291 and the air delivery part 292, has an open top and a gas compression chamber inside, and a box cover 294 is provided on the top surface of the box body 293 to seal the open opening; an air inlet hole 295 communicating with the air inlet part 291 is provided at one end, and an air outlet hole 296 communicating with the air delivery part 292 is provided at the other end;

[0076] The first partition plate 2910 is arranged along the length direction of the inner bottom wall of the box body 293, one end of which is connected to the inner side wall of the box body 293, and the other end is connected to the second partition plate 2911 arranged along the width direction of the inner bottom wall of the box body 293. The gas compression chamber is divided into a first chamber 2912, a second chamber 2913 and a third chamber 2914 by the first partition plate 2910 and the second partition plate 2911. The first chamber 2912 and the second chamber 2913 are bilaterally symmetrical.

[0077] The valve groove 2915 is opened on the inner bottom wall of the box cover 294. Two injection holes 2916 are also opened inside the box cover 294. One end of the injection hole 2916 is connected to the valve groove 2915, and the other end is connected to the third chamber 2914. A sealing member for alternately sealing the injection hole 2916 is also arranged inside the valve groove 2915.

[0078] Specifically, the gas enters the air inlet 295 of the box body 293 from the air inlet portion 291, and enters the first chamber 2912. The first valve plate 298 and the second valve plate 2917 move in the valve slot 2915 under the restriction of the limit rod 297, and alternately block the injection hole 2916, so that the gas passes through the first chamber 2912, the valve slot 2915, and the injection hole 2916 in sequence to enter the third chamber 2914, and then enters the gas delivery portion 292 from the air outlet 296. In this process, the gas compression chamber is separated by the first partition plate 2910 and the second partition plate 2911, and the first valve plate 298 and the second valve plate 2917 are alternately blocked to achieve gas pressurization; the gas can be effectively pressurized, so that the gas ejected from the blowing ring 30 has a stronger pressure, better resists the invasion of sand and dust on the lens of the camera 5, and improves the protection capability of the lens.

[0079] See also Fig.12 , Fig.13 and Fig.14 , the blocking parts include,

[0080] Two limiting rods 297 are symmetrically arranged on the side wall of the second partition 2911, one of which extends to the inside of the first partition 2910, and the other limiting rod 297 extends to the inside of the second chamber 2913;

[0081] The first valve plate 298 is an arc-shaped plate structure, located inside the first chamber 2912, with its outer wall in contact with the valve slot 2915 and movable inside the valve slot 2915;

[0082] The second valve plate 2917 is an arc-shaped plate structure, located inside the second chamber 2913, with its outer wall in contact with the valve slot 2915 and movable inside the valve slot 2915;

[0083] The first valve plate 298 and the second valve plate 2917 are both provided with valve holes 299 , and the first valve plate 298 and the second valve plate 2917 are movably sleeved on the limit rod 297 through the valve holes 299 .

[0084] Specifically, the first valve plate 298 and the second valve plate 2917 slide in the valve slot 2915. Due to the restriction of the limit rod 297, the first valve plate 298 and the second valve plate 2917 can only move in a specific direction, thereby alternately blocking the injection hole 2916 and controlling the flow path of the gas.

[0085] The design of this sealing member is simple and ingenious in structure, and can accurately control the flow direction and timing of the gas in the pressurization part, ensuring the stability and efficiency of the pressurization process, thereby ensuring the protective effect of the air curtain on the camera 5 lens.

[0086] See also Figure 4 and Fig.11A mounting seat 16 is provided on the bottom surface of the fixed platform 10, a sealed cavity 17 is provided on the top surface of the mounting seat 16, an adjustment seat 18 is provided on the bottom surface of the mounting seat 16, and the camera 5 is connected to the fixed platform 10 via the adjustment seat 18; the bottom end of the air supply pipeline 15 extends to the inside of the sealed cavity 17, and the end of the air inlet part 291 away from the box body 293 extends to the inside of the sealed cavity 17.

[0087] Specifically, the gas enters the sealed cavity 17 from the gas pipeline 15, and is then evenly distributed from the sealed cavity 17 to the inside of the air inlet 291. This design makes the gas more stable during transmission and reduces the possibility of gas leakage. The camera 5 is connected to the fixed platform 10 via the adjustment seat 18, which facilitates the adjustment of the angle of the camera 5.

[0088] Embodiment 2:

[0089] See also Figure 2 , Figure 4 , Figure 6 , Figure 8 and Fig. 9 A plurality of injection air channels 13 are arranged on the outer wall surface of the injection ring 12 and distributed along its circumference. One end of the injection air channel 13 is connected to the annular cavity 11, and the other end of the injection air channel 13 extends radially along the side wall of the injection ring 12 and passes through the bottom surface of the injection ring 12.

[0090] Specifically, the gas transmission and distribution under the condition of less wind and sand: the gas enters the annular cavity 11 inside the fixed platform 10, the gas in the annular cavity 11 will enter the blowing air duct 13, and will be ejected from the blowing air duct 13 to form an air curtain that surrounds the periphery of the camera 5 and ejects vertically downward. The air curtain surrounds the periphery of the camera 5 and can protect the camera in all directions.

[0091] See also Figure 4 , Figure 6 , Figure 8 , Fig. 9 A plurality of fan plates 14 distributed along the circumference are arranged on the outer wall surface of the jet ring 12 . The fan plates 14 are arranged to extend radially along the jet ring 12 , one side of which is fixed to the wall surface of the jet ring 12 , and the other side walls are in contact with the inner wall of the annular cavity 11 .

[0092] Specifically, the gas entering the annular cavity 11 will push the fan plate 14 to rotate inside it, and the rotating fan plate 14 will drive the jet ring 12 to rotate in the annular cavity 11, pushing the gas to flow in the annular cavity 11, and assisting the gas to enter the injection airway 13; the presence of the fan plate 14 helps to enhance the fluidity of the gas in the annular cavity 11, so that the gas can enter the injection airway 13 more smoothly. At the same time, the jet ring 12 is in a rotating state, which further ensures the uniformity and stability of the air curtain, so that the gas is evenly distributed in the cavity, thereby ensuring that the airflow ejected from the injection airway 13 is relatively stable.

[0093] See also Figure 4 , Figure 8 , Fig. 9 and Fig.10 , an inclined groove 19 is provided on the fixed platform 10, a rotating ring 22 is rotatably installed inside the inclined groove 19, a plurality of inclined holes connected with the blowing air duct 13 are provided on the outer wall of the jet ring 12 extending to the lower part of the fuselage 1, a dust cleaning pipe 21 is installed inside the inclined hole, and a dust cleaning hole 25 arranged toward the camera 5 is provided on the end surface of the dust cleaning pipe 21 extending outward, a valve pipe 24 sealingly sliding along its length direction is provided inside the dust cleaning pipe 21, one end of the valve pipe 24 is connected to a support spring 23, the support spring 23 extends into the inclined groove 19 and is fixed to the outer wall of the rotating ring 22, the other end of the valve pipe 24 is connected to a permanent magnetic ring 20, an electromagnetic ring 28 is provided on the inner wall of the dust cleaning pipe 21, and the electromagnetic ring 28 repel magnetically from the permanent magnetic ring 20 when power is turned on;

[0094] Among them, the valve tube 24 is provided with a through hole 26 and a guide channel 27 which are connected to the injection air duct 13. The through hole 26 is opened through the valve tube 24. The guide channel 27 includes a vertical portion opened along the radial direction of the valve tube 24 and a conducting portion opened along the axial direction of the valve tube 24. One end of the conducting portion is connected to the vertical portion, and the other end is connected to the cleaning pipe 21.

[0095] Specifically, the through hole 26 is connected and overlapped with the injection air passage 13. Under normal conditions, the gas entering the injection air passage 13 can be blown out through the through hole 26, so that the valve tube 24 does not affect the normal blowing of the injection air passage 13. When it is necessary to clean the lens of the camera 5, the electromagnetic ring 28 is energized. When the electromagnetic ring 28 is energized, it magnetically repels the permanent magnet ring 20. The permanent magnet ring 20 drives the valve tube 24 to move toward the inside of the inclined groove 19 and compresses the support spring 23, so that the valve tube 24 slides in the cleaning pipe 21. At this time, the guide channel 27 on the valve tube 24 coincides with the injection air passage 13, and the gas enters the inside of the cleaning pipe 21 through the guide channel 27 and is ejected from the cleaning hole 25 to clean the camera 5. When the electromagnetic ring 28 is de-energized, the support spring 23 is reset, the valve tube 24 moves, the guide channel 27 is disconnected from the injection air passage 13, the cleaning is stopped, and the through hole 26 is reset;

[0096] This structure realizes the active dust cleaning function of the camera 5, can use the formed air curtain to perform dust cleaning, and flexibly control the dust cleaning operation according to needs, further improving the protection effect of the camera 5 and ensuring that it can continue to take clear pictures in a dusty environment.

[0097] Embodiment three:

[0098] See also Figure 4 , Figure 6 and Figure 7 There are multiple air supply ports, and the outside of each air supply port is connected to a gas generating assembly. The gas generating assembly includes a cylinder portion 7 with an air inlet / outlet port, a sliding plug portion 8 that slides along the inside of the cylinder portion 7 to generate negative pressure inside the cylinder portion 7, and a driving portion 9 that is connected to a power component to drive the sliding plug portion 8 to move back and forth.

[0099] Specifically, the power component drives the driving part 9 to operate, and the driving part 9 drives the sliding plug part 8 to slide back and forth in the cylinder part 7, so that negative pressure is generated inside the cylinder part 7, and air is sucked in and exhausted through the air inlet / outlet port to provide gas for the annular cavity 11. Multiple air supply ports and gas generating components can increase the air supply efficiency and stability. The setting of this gas generating component utilizes the drive of the power component to provide a stable air source for the protective air curtain of the drone, and the multiple air supply ports and gas generating components work together to better meet the requirements for the strength and stability of the air curtain in different environments, thereby enhancing the protection effect on the video camera 5.

[0100] See also Figure 1-Figure 6 , the power components include,

[0101] A cantilever 2 is connected to the side wall of the fuselage 1 and extends radially along the fuselage 1, and an end thereof away from one end of the fuselage 1 is rotatably connected to a propeller 3;

[0102] The dual-shaft motor 6 is installed inside the cantilever 2 and has two driving ends, one of which is connected to the propeller 3 ; the gas generating assembly is located inside the cantilever 2 .

[0103] Specifically, one driving end of the dual-axis motor 6 drives the propeller 3 to rotate, providing flight power for the UAV, and the other driving end drives the driving gear 91 to rotate, the driving gear 91 drives the driven gear 92 to rotate, and the driven gear 92 drives the turntable 93 to rotate, and the pin groove 94 on the turntable 93 cooperates with the pin rod 95 to drive the piston rod 82 to reciprocate in the cylinder 71, thereby realizing the reciprocating sliding of the sliding plug part 8 in the cylinder part 7, thereby generating gas; the dual-axis motor 6 is cleverly used to combine the flight power of the UAV with the power source of the gas generating component, saving the internal space of the UAV and improving the energy utilization efficiency. At the same time, it ensures the stable operation of the gas generating component and provides a reliable gas source for the protection of the video camera 5.

[0104] See also Figure 4 , Figure 6 and Figure 7 , the cylinder portion 7 includes,

[0105] The cylinder 71 is a cylindrical structure with a smooth inner wall. The air inlet port is located on the lower side wall of the cylinder 71, and the air outlet port is located on the front side wall of the cylinder 71. A one-way air inlet pipe 73 is installed inside the air inlet port, and the other end of the one-way air inlet pipe 73 extends to the outside of the fuselage 1. A one-way air outlet pipe 72 is installed inside the air outlet port, and the other end of the one-way air outlet pipe 72 is connected to the air inlet port opened on the fixing platform 10.

[0106] The slide plug portion 8 includes:

[0107] The piston plate 81 is located in the cylinder 71 and can slide along the inner wall of the cylinder 71. One side of the piston plate 81 is connected to and extends out of the cylinder 71. The piston rod 82 is provided with a return spring 83 whose two ends are respectively connected to the piston plate 81 and the inner wall of the cylinder 71;

[0108] The driving unit 9 includes:

[0109] A driving gear 91 is connected to the other driving end of the dual-axis motor 6, and a driven gear 92 meshing with the driving gear 91 is rotatably mounted inside the cantilever 2;

[0110] The rotating disk 93 is coaxially arranged above the driven gear 92. A pin groove 94 is provided on the top surface of the rotating disk 93. A pin rod 95 is provided inside the pin groove 94 and can slide along the inner wall thereof. One end of the piston rod 82 extending to the outside of the cylinder 71 is connected to the pin rod 95.

[0111] The pin groove 94 is composed of two symmetrically arranged and connected grooves, and the distance between the inner wall of the groove and the axis of the driven gear 92 in the rotation direction increases or decreases successively.

[0112] Specifically, the piston plate 81 slides in the cylinder 71. When the piston plate 81 slides away from the air inlet port, negative pressure is generated in the cylinder 71, and the outside air enters the cylinder 71 through the one-way air inlet pipe 73; when the piston plate 81 slides toward the air inlet port, the gas is transported to the air inlet port of the fixed platform 10 through the one-way air outlet pipe 72. The special shape of the pin groove 94 enables the piston rod 82 to reciprocate when the turntable 93 rotates.

[0113] The specific structural design of the cylinder part 7, the sliding plug part 8 and the driving part 9 ensures the efficient and stable operation of the gas generating assembly, ensures the one-way flow of gas through the one-way air inlet pipe 73 and the one-way air outlet pipe 72, improves the stability and reliability of gas delivery, and provides a continuous and stable airflow for the protection of the video camera 5.

[0114] Working principle: This remote sensing monitoring drone along the Loess Plateau road is designed to solve the problem that camera equipment is easily affected by sand and dust when monitoring in the area. Its working process revolves around providing protective airflow for the camera 5:

[0115] Gas generation: The dual-axis motor 6 in the power component has one driving end driving the propeller 3 to make the drone fly, and the other driving end is connected to the driving gear 91. The driving gear 91 is meshed with the driven gear 92 to drive the turntable 93 to rotate. The pin groove 94 on the turntable 93 cooperates with the pin rod 95 to drive the piston rod 82 to reciprocate in the cylinder 71, so that the piston plate 81 slides in the cylinder 71, thereby generating negative pressure inside the cylinder part 7. The outside air enters the cylinder 71 through the one-way air inlet pipe 73, and then the gas is transported to the air supply port of the fixed platform 10 through the one-way air outlet pipe 72. Multiple air supply ports are connected to multiple gas generating components, which can increase the efficiency and stability of air supply;

[0116] Gas transmission and distribution in the case of strong wind and sand: the gas enters the annular cavity 11 inside the fixed platform 10, and in the annular cavity 11, the gas is transported to the gas pipeline 15, and the gas pipeline 15 then transports the gas to the blowing pipe 29, and then blows it out by the blowing ring 30, and the blown gas forms an air curtain at the front end of the camera 5; at this time, the formed air curtain can rotate and adjust synchronously with the camera 5, and at the same time, the air curtain is concentrated at the front end of the camera 5, mainly for protecting the lens of the camera 5, and can form a direct barrier in front of the sand and dust approaching the lens of the camera 5, and use the impact force of the airflow to change the movement trajectory of the sand and dust, making it difficult for it to contact the lens, ensuring clear shooting pictures and ensuring accurate judgment of road conditions;

[0117] Due to the strong wind and sand, the ejected air curtain may be disturbed by the wind and sand, destroying the protective effect. In this application, the air inlet 291 of the blowing pipe 29 receives the gas and enters the box body 293 of the pressurization part. The gas flows between the first chamber 2912, the valve slot 2915, the injection hole 2916 and the third chamber 2914. The injection hole 2916 is alternately blocked under the restriction of the first valve plate 298 and the second valve plate 2917 and the limit rod 297 to achieve gas pressurization. After that, the gas enters the gas delivery part 292 from the air outlet 296; the pressurized gas reaches the blowing ring 30 through the gas delivery part 292, and forms an air curtain outside the lens of the camera 5 to prevent sand and dust from adhering;

[0118] The specific pressurization process is as follows: the gas in the gas pipeline 15 enters the first chamber 2912 and the second chamber 2913 through the air inlet 295 through the air inlet portion 291, and the gas is compressed into high-pressure gas in the first chamber 2912 and the second chamber 2913. Then, the high-pressure gas in the first chamber 2912 acts on the end surface of the first valve plate 298 located in the first chamber 2912, so that the high-pressure gas overcomes the friction force and the gas pressure of the second chamber 2913, and pushes the first valve plate 298 to rotate in the direction of the second chamber 2913, so that the second valve plate 2917 is subjected to the same force. The valve plate 298 rotates step by step. At this time, one end of the valve hole 299 on the first valve plate 298 hits the limit rod 297, so that the first valve plate 298 and the second valve plate 2917 stop rotating. At this time, the valve hole 299 on the first valve plate 298 coincides with the injection hole 2916 located above the first chamber 2912, so that the high-pressure gas in the first chamber 2912 enters the third chamber 2914 through the injection hole 2916 above the first chamber 2912, and then enters the inside of the gas outlet 296 from the third chamber 2914, and then enters the inside of the gas transmission part 292 from the gas outlet 296, and The gas is ejected through the blowing ring 30, so that the ejected airflow has the effect of enhancing the air pressure. At the same time, the gas in the second chamber 2913 is still being compressed. When the first chamber 2912 ejects high-pressure airflow and the pressure is continuously reduced, the air pressure in the second chamber 2913 is continuously increased, so that the high-pressure environment of the second chamber 2913 squeezes the second valve plate 2917 connected thereto, so that the second valve plate 2917 rotates and resets toward the first valve plate 298, and the first valve plate 298 rotates and resets synchronously, until the other end of the valve hole 299 on the first valve plate 298 hits the limit again. The rod 297 stops rotating, and the valve hole 299 on the second valve plate 2917 coincides with the injection hole 2916 located above the second chamber 2913, so that the high-pressure gas in the second chamber 2913 enters the third chamber 2914 through the injection hole 2916 above the second chamber 2913, and then enters the inside of the air outlet 296 from the third chamber 2914, and then enters the inside of the gas delivery part 292 from the air outlet 296. At the same time, the gas in the first chamber 2912 is still being compressed, and this reciprocating process causes the blowing ring 30 to continuously eject high-pressure airflow.

[0119] Gas transmission and distribution in the case of less wind and sand: the gas enters the annular cavity 11 inside the fixed platform 10, and the gas in the annular cavity 11 enters the blowing air channel 13 and is ejected from the blowing air channel 13 to form an air curtain that surrounds the periphery of the camera 5 and is ejected vertically downward. The air curtain surrounds the periphery of the camera 5 and can protect the camera in all directions. Even in the case of less wind and sand, there may still be some floating sand and dust particles. This surrounding air curtain can form a continuous barrier around the camera, effectively blocking sand and dust coming from all directions and preventing it from contacting the camera lens, ensuring that the clarity of the captured image is not affected by the sand and dust. The air curtain ejected vertically downward can use the dual effects of gravity and airflow to accelerate the downward movement of sand and dust, so that it moves away from the camera lens faster. At the same time, the vertically downward airflow can form a relatively low-pressure area below the camera lens, which helps to guide the surrounding air with sand and dust to flow downward, further reducing the possibility of sand and dust accumulation around the camera;

[0120] The gas entering the annular cavity 11 will push the fan plate 14 to rotate inside it, and the rotating fan plate 14 will drive the jet ring 12 to rotate in the annular cavity 11, pushing the gas to flow in the annular cavity 11, and assisting the gas to enter the injection airway 13; the presence of the fan plate 14 helps to enhance the fluidity of the gas in the annular cavity 11, so that the gas can enter the injection airway 13 more smoothly. At the same time, the jet ring 12 is in a rotating state, which further ensures the uniformity and stability of the air curtain, so that the gas is evenly distributed in the cavity, thereby ensuring that the airflow ejected from the injection airway 13 is relatively stable.

Claims

1. A remote sensing monitoring drone along the Loess Plateau road, comprising a fuselage (1), a camera (5) mounted on the bottom, and a power component for driving the fuselage (1) to fly arranged on the side; characterized in that: Also includes: A fixed platform (10) is arranged in the body (1) and has a receiving cavity therein, wherein a piston assembly is arranged in the receiving cavity, wherein the piston assembly at least comprises a cylinder portion (7) having an air inlet / air outlet port, and a movable portion that can reciprocate along the axial direction of the cylinder portion (7), wherein the movable portion is connected to a driving end of a power component, and is used for the movable portion to continuously supply air to the air outlet port during the reciprocating sliding process; An air blowing ring (30) has an annular air cavity inside. The air blowing ring (30) is arranged on the front side of a video camera (5), and the ring opening is at least covered outside the lens of the video camera (5). The end surface of the air blowing ring (30) is provided with a plurality of air outlets connected to the air outlet ports, which are used to form an air curtain at the air outlets on the air blowing ring (30) when the gas from the air outlet ports is transported to the air outlets.

2. A remote sensing monitoring drone along the Loess Plateau road as claimed in claim 1, characterized in that: The activity section includes: A sliding plug portion (8), the sliding plug portion (8) comprising a piston plate (81), which is located in the cylinder portion (7) and can slide along the inner wall of the cylinder portion (7), one side of which is connected to and extends out of the cylinder portion (7) from a piston rod (82), and a return spring (83) is provided on the piston rod (82), the two ends of which are respectively connected to the piston plate (81) and the inner wall of the cylinder portion (7); A driving gear (91) is connected to the driving end of the power component, and a driven gear (92) meshing with the driving gear (91) is rotatably mounted in the body (1); A rotating disk (93) is coaxially arranged above the driven gear (92), a pin groove (94) is provided on the top surface of the rotating disk (93), a pin rod (95) is provided inside the pin groove (94) and can slide along the inner wall thereof, and one end of the piston rod (82) extending to the outside of the cylinder (71) is connected to the pin rod (95); The pin groove (94) is composed of two symmetrically arranged and connected grooves, and the distance between the inner wall of the groove and the axis of the driven gear (92) in the rotation direction increases or decreases in sequence.

3. A remote sensing monitoring drone along the Loess Plateau road as claimed in claim 2, characterized in that: An annular cavity (11) is provided inside the fixing platform (10), an air injection ring (12) is provided in the annular cavity (11) and rotates around its central axis, and an air supply port for connecting the annular cavity (11) with the outside is provided on the outer wall of the fixing platform (10), and the air supply port is connected to the air outlet port of the air cylinder part (7); A plurality of gas delivery pipelines (15) are arranged on the top surface of the fixed platform (10), one end of the gas delivery pipeline (15) is connected to the annular cavity (11), and the other end is connected to a blowing pipe (29); the other end of the blowing pipe (29) is connected to the annular air cavity inside the blowing ring (30); The blowing pipe (29) comprises an air intake portion (291), an air delivery portion (292) and a pressurizing portion which are connected in sequence.

4. A remote sensing monitoring drone along the Loess Plateau road as described in any one of claims 1 to 3, characterized in that: The booster unit comprises: The box body (293) is connected between the air inlet portion (291) and the air delivery portion (292), has an open top and a gas compression chamber inside, and a box cover (294) is provided on the top surface of the box body (293) to seal the open top; an air inlet hole (295) communicating with the air inlet portion (291) is provided at one end, and an air outlet hole (296) communicating with the air delivery portion (292) is provided at the other end; A first partition (2910) is arranged along the length direction of the inner bottom wall of the box body (293), one end of which is connected to the inner side wall of the box body (293), and the other end is connected to a second partition (2911) arranged along the width direction of the inner bottom wall of the box body (293); the gas compression chamber is divided into a first chamber (2912), a second chamber (2913) and a third chamber (2914) by the first partition (2910) and the second partition (2911); the first chamber (2912) and the second chamber (2913) are bilaterally symmetrical; The valve groove (2915) is provided on the inner bottom wall of the box cover (294), and two injection holes (2916) are also provided inside the box cover (294). One end of the injection hole (2916) is connected to the valve groove (2915), and the other end is connected to the third chamber (2914). A blocking member for alternately blocking the injection holes (2916) is also provided inside the valve groove (2915).

5. A remote sensing monitoring drone along the Loess Plateau roads as claimed in claim 4, characterized in that: The blocking member comprises: Two limiting rods (297) are symmetrically arranged on the side wall of the second partition (2911), one of which extends into the interior of the first partition (2910), and the other limiting rod (297) extends into the interior of the second chamber (2913); The first valve plate (298) is an arc-shaped plate structure, located inside the first chamber (2912), with its outer wall in contact with the valve groove (2915) and movable inside the valve groove (2915); The second valve plate (2917) is an arc-shaped plate structure, located inside the second chamber (2913), with its outer wall in contact with the valve groove (2915) and movable inside the valve groove (2915); Wherein, the first valve plate (298) and the second valve plate (2917) are both provided with valve holes (299), and the first valve plate (298) and the second valve plate (2917) are movably connected to the limit rod (297) through the valve holes (299).

6. The remote sensing monitoring drone along the Loess Plateau road as claimed in claim 3, characterized in that: A plurality of blowing air channels (13) are arranged on the outer wall surface of the jet ring (12) and distributed along its circumference; one end of the jet air channel (13) is connected to the annular cavity (11); the other end of the jet air channel (13) extends radially along the side wall of the jet ring (12) and penetrates the bottom surface of the jet ring (12).

7. The remote sensing monitoring drone along the Loess Plateau road as claimed in claim 3, characterized in that: The outer wall surface of the jet ring (12) is provided with a plurality of fan plates (14) distributed along its circumference. The fan plates (14) are extended along the radial direction of the jet ring (12), one side of the fan plates is fixed to the wall surface of the jet ring (12), and the other side walls are in contact with the inner wall of the annular cavity (11).

8. The remote sensing monitoring drone along the Loess Plateau road as claimed in claim 6, characterized in that: The fixing platform (10) is provided with an inclined groove (19), a rotating ring (22) is rotatably mounted inside the inclined groove (19), a plurality of inclined holes communicating with the injection air passage (13) are arranged on the outer wall of the jet ring (12) extending to the lower part of the fuselage (1), a dust cleaning pipe (21) is installed inside the inclined hole, a dust cleaning hole (25) arranged toward the camera (5) is arranged on the end surface of the dust cleaning pipe (21) extending outward, and the dust cleaning pipe (21) A valve tube (24) is provided inside and is sealed and slidable along its length direction. One end of the valve tube (24) is connected to a support spring (23). The support spring (23) extends into the interior of the inclined groove (19) and is fixed to the outer wall of the rotating ring (22). The other end of the valve tube (24) is connected to a permanent magnet ring (20). An electromagnetic ring (28) is provided on the inner wall of the dust cleaning pipe (21). When power is turned on, the electromagnetic ring (28) and the permanent magnet ring (20) are magnetically repelled. The valve tube (24) is provided with a through hole (26) and a guide channel (27) which are connected to the injection air duct (13); the through hole (26) is provided through the valve tube (24); the guide channel (27) includes a vertical portion provided along the radial direction of the valve tube (24) and a conducting portion provided along the axial direction of the valve tube (24); one end of the conducting portion is connected to the vertical portion, and the other end is connected to the cleaning tube (21).

9. The remote sensing monitoring drone along the Loess Plateau road as claimed in claim 3, characterized in that: The bottom surface of the fixed platform (10) is provided with a mounting seat (16), the top surface of the mounting seat (16) is provided with a sealed cavity (17), the bottom surface of the mounting seat (16) is provided with an adjustment seat (18), and the video camera (5) is connected to the fixed platform (10) via the adjustment seat (18); the bottom end of the air delivery pipeline (15) extends into the sealed cavity (17), and one end of the air inlet portion (291) away from the box body (293) extends into the sealed cavity (17).

10. The remote sensing monitoring drone along the Loess Plateau road as claimed in claim 2, characterized in that: The power component includes: A cantilever (2) is connected to a side wall of the fuselage (1) and extends radially along the fuselage (1), and an end of the cantilever (2) away from one end of the fuselage (1) is rotatably connected to a propeller (3); The dual-shaft motor (6) is installed inside the cantilever (2) and has two driving ends, one of which is connected to the propeller (3); the driving gear (91) is connected to the other driving end of the dual-shaft motor (6).

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