An unmanned aerial vehicle photography, aerial survey and mapping device

Abstract

The present invention discloses a drone photography, aerial photography and aerial survey device, which relates to the technical field of drone aerial survey. It includes a drone body, fixed boxes arranged on both sides of the front and rear ends of the top of the drone body, and a storage box embedded in the middle of the bottom surface of the drone body. Aerial survey cameras are arranged directly below the storage box. Suspension rods are arranged on both sides of the bottom of the lifting plate. Stabilizing tubes are fixedly connected to both sides inside the storage box. A protection mechanism is arranged inside the protection box; a slow descent mechanism is arranged inside the fixed box; through the cooperation of the protection mechanism, the slow descent mechanism and the gravity self-starting component, it is convenient to play a good role in slowly descending the drone that flips and falls and protecting the aerial survey camera in a wrapped manner. It can change the drone that flips and quickly falls into a state of horizontal slow descent. Through helium, not only can the impact force during the falling impact of the device be reduced, but also it can play a role in flame retardancy and buffering, greatly improving the protection effect of the drone on the aerial survey camera after falling.

Description

Technical Field

[0001] The present invention relates to the technical field of UAV aerial surveying, and particularly relates to a UAV photography, aerial photography and aerial surveying device. Background Art

[0002] With the rapid development of the economy and the ever-changing development of information technology, UAVs have also been updated. A large number of UAVs are used for photography and taking pictures, such as surveying and extracting 3D models of cities. During the aerial survey process, the aerial surveying devices installed on the UAVs play a huge role. When the UAV is performing aerial surveying operations, it often needs to fly to a certain height to facilitate shooting the ground. Due to considerations of the take-off weight, the protective devices or anti-fall devices often pursue lightweight designs, which results in ineffective protection during collisions.

[0003] However, when the UAV is flying at a relatively high altitude, if the UAV loses signal, power, or encounters strong convective air, for example, when the UAV suddenly loses lift and power in the air, the UAV in flight will fall. Moreover, the falling speed of the UAV will become faster and faster. At the same time, the falling UAV does not fall in a horizontal state, and there is less protection for the aerial surveying camera during the fall of the UAV. This may lead to the aerial surveying camera of the falling UAV directly hitting an object, resulting in the complete damage of the aerial surveying data. This shows that the UAV cannot provide effective protection during collisions. Due to the above reasons, the UAV is often severely damaged. Therefore, the above problems need to be improved. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and propose a UAV photography, aerial photography and aerial surveying device.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A UAV photography, aerial photography and aerial surveying device, including a UAV body, fixed boxes arranged on both sides of the front and rear ends of the top of the UAV body, and a storage box embedded in the middle of the bottom surface of the UAV body. Aerial surveying camera is provided directly below the storage box. The opening of the storage box faces downward. A lifting plate is horizontally arranged inside the storage box. Vertical suspension rods are arranged on both sides of the bottom of the lifting plate. The bottom ends of the suspension rods extend out of the opening of the storage box. The aerial surveying camera is fixed to the bottom ends of the suspension rods. Stabilizing tubes that vertically penetrate the lifting plate are fixedly connected to both sides inside the storage box. A protection box is fixedly connected to the front ends of the two suspension rods. A protection mechanism for wrapping when the aerial surveying camera falls is arranged inside the protection box. A slow descent mechanism for protecting the UAV body from falling is arranged inside the fixed box. A driving component for lifting and lowering the lifting plate is arranged inside the stabilizing tube.

[0006] A buffer cavity is internally formed in the middle of the lifting plate. A suspension plate is horizontally movably arranged inside the buffer cavity. A rectangular opening is formed in the middle of the inner bottom surface of the buffer cavity. The top end of the suspension rod extends into the buffer cavity from the rectangular opening and is fixedly connected to the suspension plate. A plurality of stabilizing springs are evenly arranged on the top surface of the suspension plate. A touch switch is arranged in the middle of the inner top surface of the buffer cavity.

[0007] Preferably, the driving assembly includes a lead screw vertically rotatably arranged inside the stabilizing tube, a threaded tube movably sleeved on the lead screw, and a motor arranged inside the top of the stabilizing tube. The driving shaft of the motor is coaxially and fixedly connected to the top end of the lead screw. Connecting plates are horizontally and fixedly connected to both sides of the threaded tube. Strip-shaped openings are vertically formed on the outer walls of both sides of the stabilizing tube. The outer ends of the connecting plates extend out from the strip-shaped openings and are fixedly connected to the lifting plate.

[0008] Preferably, the protection mechanism includes a helium gas tank arranged on the top of the protection box, top outlets formed on both sides of the protection box, thin sealing plates adhesively bonded to the outer ends inside the top outlets, movable sealing plates vertically arranged on both sides inside the middle of the protection box, and inflatable protection covers arranged on the outer side surfaces of the movable sealing plates. The air inlet pipe of the inflatable protection cover penetrates to the outer side of the inner side surface of the movable sealing plate. A GPS locator is arranged in the middle of the inner bottom surface of the protection box. An independent power supply is arranged at the bottom of the GPS locator. The air outlet pipe of the helium gas tank is communicated with the middle of the inner top of the protection box. An electronic valve is arranged on the air outlet pipe of the helium gas tank. The electronic valve is electrically connected to the touch switch. A one-way intake valve is arranged on the air inlet pipe of the inflatable protection cover.

[0009] Preferably, the slow descent mechanism includes cover plates hinged to both sides inside the opening at the top of the fixed box, magnet sheets longitudinally fixedly connected to the inner end surfaces of the cover plates, a partition plate horizontally fixedly connected to the middle inside the fixed box, a parachute box horizontally arranged in the middle of the top surface of the partition plate, a parachute arranged inside the parachute box, and a telescopic ejector arranged in the middle of the inner bottom surface of the fixed box. A gravity self-starting component for starting the telescopic ejector is arranged at the outer end inside the fixed box.

[0010] Preferably, the positive electrode of the telescopic ejector is electrically connected to the storage battery inside the UAV body through a wire, and the negative electrode of the telescopic ejector is connected to the gravity self-starting component through a wire.

[0011] Preferably, the gravity self - starting component includes a pair of separated fixed plates arranged at the upper end inside the outer side of the fixed box, an insulating rod vertically and movably penetrating through the outer end of the top surface of the partition plate, an iron ball fixedly connected to the bottom end of the insulating rod, and a conductive carbon plate horizontally and fixedly connected to the top end of the insulating rod. One end of the wire at the negative extreme of the telescopic ejector penetrates out to the bottom surface outside one of the fixed plates, and a series wire electrically connected to the internal battery of the UAV body is arranged on the other fixed plate; a magnet seat is fixedly connected to one side of the bottom surface of the partition plate, the insulating rod movably penetrates through the middle of the magnet seat, and a magnetic suction groove matched with the iron ball is formed on the bottom surface of the magnet seat.

[0012] Preferably, a plurality of air inlet strip openings are equidistantly arranged on the front and rear end faces of the parachute box.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of the protection mechanism, the slow - descent mechanism and the gravity self - starting component, the present invention is convenient for playing a good role in slowly descending the UAV that flips and falls and protecting the aerial survey camera in a wrapped manner. It can not only change the UAV that flips and quickly falls into a state of horizontal slow - descent, but also automatically start the protection mechanism to wrap the aerial survey camera when the shock force of the legs in contact with the ground when the UAV falls. At the same time, by filling helium gas into the inflatable protective cover, since helium gas is an inert gas and has a light mass, helium gas can not only reduce the impact force when the device falls and hits, but also play a role in flame retardancy and buffering, greatly improving the protection effect of the aerial survey camera on the UAV after it falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0015] Figure 1 is the front - view structural schematic diagram of the present invention;

[0016] Figure 2 is the front - view partial structural cross - sectional view of the present invention;

[0017] Figure 3 is the front - view protection - state structural schematic diagram of the present invention;

[0018] Figure 4 is the cross - sectional view of the aerial survey camera storage state structure of the present invention;

[0019] Figure 5 is the cross - sectional view of the non - inflated state structure of the inflatable protective cover of the present invention;

[0020] Figure 6 is the cross - sectional view of the inflated and deployed state structure of the inflatable protective cover of the present invention;

[0021] Figure 7 Cross-sectional view of the fixed box of the present invention in the unopened state;

[0022] Figure 8 Cross-sectional view of the fixed box of the present invention in the opened state.

[0023] Reference numerals: 1, UAV body; 2, fixed box; 3, storage box; 4, aerial survey camera; 5, lifting plate; 6, suspension rod; 7, protection box; 8, stabilizing tube; 9, lead screw; 10, motor; 11, thin sealing plate; 12, helium gas cylinder; 13, moving sealing plate; 14, inflatable protection cover; 15, suspension plate; 16, stabilizing spring; 17, touch switch; 18, GPS locator; 19, cover plate; 20, partition plate; 21, parachute box; 22, telescopic ejector; 23, fixing plate; 24, insulating rod; 25, iron ball; 26, conductive carbon plate; 27, magnet seat. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Embodiment: Refer to Figures 1 to 8, an unmanned aerial vehicle (UAV) photography, aerial survey and mapping device, comprising a UAV body 1, fixed boxes 2 provided on both sides of the front and rear ends of the top of the UAV body 1, and a storage box 3 embedded in the middle of the bottom surface of the UAV body 1. A surveying and mapping camera 4 is provided directly below the storage box 3. The opening of the storage box 3 faces downward. A lifting plate 5 is horizontally provided inside the storage box 3. Vertical suspension rods 6 are provided on both sides of the bottom of the lifting plate 5. The bottom ends of the suspension rods 6 extend out from the opening of the storage box 3. The surveying and mapping camera 4 is fixed to the bottom ends of the suspension rods 6. Stabilizing tubes 8 that vertically penetrate the lifting plate 5 are fixedly connected to both sides inside the storage box 3. A protective box 7 is fixedly connected to the front ends of the two suspension rods 6. A protective mechanism for wrapping when the surveying and mapping camera 4 falls is provided inside the protective box 7; a descent control mechanism for protecting the UAV body 1 from falling is provided inside the fixed box 2; a drive assembly for lifting and lowering the lifting plate 5 is provided inside the stabilizing tube 8; a buffer cavity is formed in the middle of the lifting plate 5. A suspension plate 15 is horizontally movably provided inside the buffer cavity. A rectangular opening is formed in the middle of the inner bottom surface of the buffer cavity. The top ends of the suspension rods 6 extend into the buffer cavity from the rectangular opening and are fixedly connected to the suspension plate 15; a plurality of stabilizing springs 16 are evenly provided on the top surface of the suspension plate 15. A touch switch 17 is provided in the middle of the inner top surface of the buffer cavity; through the cooperation of the protective mechanism, the descent control mechanism and the gravity-activated self-starting component, it is convenient to play a good role in slowly descending the UAV that flips and falls and wrapping and protecting the surveying and mapping camera 4. It can not only change the UAV that flips and falls quickly into a state of slowly descending horizontally, but also automatically start the protective mechanism to wrap the surveying and mapping camera 4 by the anti-seismic force of the legs in contact with the ground when the UAV falls. At the same time, by filling helium gas into the inflatable protective cover 14, since helium gas is an inert gas and has a light mass, helium gas can not only reduce the impact force when the device falls and impacts, but also play a role in flame retardancy and buffering, greatly improving the protection effect of the UAV on the surveying and mapping camera 4 after falling.

[0026] In the present invention, the drive assembly includes a lead screw 9 vertically rotatably provided inside the stabilizing tube 8, a threaded tube movably sleeved on the lead screw 9, and a motor 10 provided inside the top of the stabilizing tube 8. The drive shaft of the motor 10 is coaxially fixedly connected to the top end of the lead screw 9. Connecting plates are horizontally fixedly connected to both sides of the threaded tube. Strip-shaped openings are vertically formed on the outer walls of both sides of the stabilizing tube 8. The outer ends of the connecting plates extend out from the strip-shaped openings and are fixedly connected to the lifting plate 5. Through the drive assembly, the lifting plate 5 can be adjusted for lifting and lowering, thereby playing a role in storing and protecting the surveying and mapping camera 4.

[0027] In the present invention, the protection mechanism includes a helium gas cylinder 12 provided on the top of the protection box 7, top outlets opened on both sides of the protection box 7, thin sealing plates 11 adhesively bonded to the outer ends inside the top outlets, movable sealing plates 13 vertically provided on both inner sides of the middle of the protection box 7, and an inflatable protection cover 14 provided on the outer side surfaces of the movable sealing plates 13. The intake pipe of the inflatable protection cover 14 penetrates through to the outer side of the inner side surface of the movable sealing plate 13. In the middle of the inner bottom surface of the protection box 7, a GPS locator 18 is provided, and an independent power supply is provided at the bottom of the GPS locator 18. The outlet pipe of the helium gas cylinder 12 communicates with the middle end of the inner top of the protection box 7. An electronic valve is provided on the outlet pipe of the helium gas cylinder 12, and the electronic valve is electrically connected to a touch switch 17. A one-way intake valve is provided on the intake pipe of the inflatable protection cover 14.

[0028] In the present invention, the descent speed reduction mechanism includes cover plates 19 hinged to both inner sides of the top opening of the fixed box 2, magnet sheets longitudinally fixed to the inner end surfaces of the cover plates 19, a partition plate 20 horizontally fixed to the middle of the fixed box 2, a parachute box 21 horizontally provided in the middle of the top surface of the partition plate 20, a parachute provided inside the parachute box 21, and a telescopic ejector 22 provided in the middle of the inner bottom surface of the fixed box 2. A plurality of air inlet slits are equally spaced and opened on the front and rear end surfaces of the parachute box 21. A gravity self-activation component for starting the telescopic ejector 22 is provided at the outer end of the inside of the fixed box 2. The positive electrode of the telescopic ejector 22 is electrically connected to the storage battery inside the drone body 1 through a wire, and the negative electrode of the telescopic ejector 22 is connected to the gravity self-activation component through a wire, facilitating the reduction of the descent speed of the drone body 1. The automatically opened parachute facilitates the horizontal landing of the overturned and descending drone body 1, and at the same time can reduce the speed of the drone body 1 when it falls, avoiding the situation that the drone body 1 is severely impacted due to no speed reduction during the fall.

[0029] In the present invention, the gravity self-activation component includes a pair of separated fixing plates 23 provided at the upper end of the inner side of the outer side of the fixed box 2, an insulating rod 24 vertically and movably penetrating through the outer end of the top surface of the partition plate 20, an iron ball 25 fixed to the bottom end of the insulating rod 24, and a conductive carbon plate 26 horizontally fixed to the top end of the insulating rod 24. One end of the wire at the negative extreme of the telescopic ejector 22 passes out to the outside of the bottom surface of one of the fixing plates 23, and a series wire electrically connected to the storage battery inside the drone body 1 is provided on the other fixing plate 23. A magnet seat 27 is fixedly connected to one side of the bottom surface of the partition plate 20. The insulating rod 24 movably penetrates through the middle of the magnet seat 27, and a magnetic suction groove cooperating with the iron ball 25 is opened on the bottom surface of the magnet seat 27, facilitating the opening of the parachute when the drone flips and falls.

[0030] Working principle: In this embodiment, the present invention also proposes a method for using a drone photography, aerial photography, and aerial survey device, including the following steps:

[0031] Step 1: First, fixedly embed the storage box 3 in the bottom slot of the UAV body 1, and electrically connect the motor 10, the aerial survey camera 4, and the electronic valve to the control end of the UAV body 1 through wires respectively. Then, after starting the UAV body 1 to take off, start the driving component to drive the lifting plate 5 to descend. The descending lifting plate 5 facilitates the extension of the aerial survey camera 4 installed at the bottom of the boom 6 from the storage box 3. Then, the aerial survey camera 4 that has descended outside the storage box 3 can be used for aerial survey operations on the landform;

[0032] Step 2: When the UAV body 1 encounters emergencies such as power failure, signal loss, and strong convective air, the UAV body 1 will flip and fall. When the UAV body 1 is falling with the aerial survey camera 4, if it is possible to start the driving component to retract the aerial survey camera 4 into the storage box 3, first retract the aerial survey camera 4 into the storage box 3;

[0033] Step 3: During the process of the UAV body 1 flipping and falling, the iron ball 25 inside the fixed box 2 will push the conductive carbon plate 26 at the top of the insulating rod 24 to contact the wire of the series wire and the negative terminal of the telescopic ejector 22 under the action of gravity, so that the telescopic ejector 22 can be powered on. Then, the telescopic ejector 22 after being powered on quickly jacks up the parachute box 21, and the two cover plates 19 are pushed open by the jacked-up parachute box 21. Then, the parachute inside the parachute box 21 is quickly opened. Then, the flipping and falling UAV body 1 can be made to land horizontally through the automatically opened parachute, and at the same time, the falling speed of the UAV body 1 can be reduced, avoiding the situation that the UAV body 1 is severely impacted due to no speed reduction during falling;

[0034] Step 4: If the signal is interrupted and the aerial survey camera 4 cannot be retracted into the storage box 3, when the leg of the falling UAV body 1 hits an object for the first time, due to the impact force, at this time, the aerial survey camera 4 will press the touch switch 17 through the suspension plate 15 under the action of the vibration force fluctuation. Then, the touch switch 17 immediately activates the electronic valve, so that the helium gas inside the helium gas tank 12 is quickly injected into the protection box 7. After the helium gas is injected into the protection box 7, the helium gas quickly fills the inflatable protection cover 14. The inflated inflatable protection cover 14 facilitates the pushing open of the thin sealing plate 11 on the side wall of the protection box 7 and the outward movement of the movable sealing plate 13, so that the inflatable protection cover 14 automatically extends out of the protection box 7. At this time, the inflated inflatable protection cover 14 is in a hemispherical shape and covers the aerial survey camera 4. The two fully expanded inflatable protection covers 14 can completely cover and wrap the aerial survey camera 4, avoiding the situation that the aerial survey camera 4 hits the ground after the UAV body 1 is broken by impact, and facilitating the wrapping protection of the outside of the aerial survey camera 4.

[0035] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An unmanned aerial vehicle photography, aerial surveying and mapping device, comprising an unmanned aerial vehicle body (1), fixed boxes (2) arranged on both sides of the front and rear ends of the top of the unmanned aerial vehicle body (1), and a storage box (3) embedded in the middle of the bottom surface of the unmanned aerial vehicle body (1), characterized in that: Aerial survey cameras (4) are provided directly below the storage box (3). The opening of the storage box (3) faces downward. A lifting plate (5) is horizontally arranged inside the storage box (3). Suspension rods (6) are vertically arranged on both sides of the bottom of the lifting plate (5). The bottom ends of the suspension rods (6) extend out from the opening of the storage box (3). The aerial survey cameras (4) are fixed to the bottom ends of the suspension rods (6). Stabilizing tubes (8) that vertically penetrate the lifting plate (5) are fixedly connected to both sides inside the storage box (3). A protection box (7) is fixedly connected to the front ends of the two suspension rods (6). A protection mechanism for wrapping when the aerial survey cameras (4) fall is arranged inside the protection box (7); A buffer mechanism for protecting the UAV body (1) from falling is arranged inside the fixed box (2); A driving component for lifting and lowering the lifting plate (5) is arranged inside the stabilizing tube (8); A buffer cavity is formed in the middle of the lifting plate (5). A suspension plate (15) is horizontally and movably arranged inside the buffer cavity. A rectangular opening is formed in the middle of the inner bottom surface of the buffer cavity. The top ends of the suspension rods (6) extend into the buffer cavity from the rectangular opening and are fixedly connected to the suspension plate (15); A plurality of stabilizing springs (16) are evenly arranged on the top surface of the suspension plate (15). A touch switch (17) is arranged in the middle of the inner top surface of the buffer cavity; The driving component includes a lead screw (9) vertically and rotatably arranged inside the stabilizing tube (8), a threaded tube movably sleeved on the lead screw (9), and a motor (10) arranged inside the top of the stabilizing tube (8). The driving shaft of the motor (10) is coaxially and fixedly connected to the top end of the lead screw (9). Connecting plates are horizontally and fixedly connected to both sides of the threaded tube. Strip-shaped openings are vertically formed on the outer walls of both sides of the stabilizing tube (8). The outer ends of the connecting plates extend out from the strip-shaped openings and are fixedly connected to the lifting plate (5); The protection mechanism includes a helium gas tank (12) arranged on the top of the protection box (7), top outlets formed on both sides of the protection box (7), thin sealing plates (11) adhesively bonded to the outer ends inside the top outlets, movable sealing plates (13) vertically arranged on both sides inside the middle of the protection box (7), and an inflatable protection cover (14) arranged on the outer side surfaces of the movable sealing plates (13). The air inlet pipe of the inflatable protection cover (14) penetrates to the outer side of the inner side surface of the movable sealing plate (13). A GPS locator (18) is arranged in the middle of the inner bottom surface of the protection box (7). An independent power supply is arranged at the bottom of the GPS locator (18); The air outlet pipe of the helium gas tank (12) is communicated with the middle of the inner top of the protection box (7). An electronic valve is arranged on the air outlet pipe of the helium gas tank (12). The electronic valve is electrically connected to the touch switch (17). A one-way intake valve is arranged on the air inlet pipe of the inflatable protection cover (14); The descent mechanism includes cover plates (19) hinged to both sides of the top opening of the fixed box (2), magnet sheets longitudinally fixed to the inner end faces of the cover plates (19), a partition plate (20) horizontally fixed in the middle of the fixed box (2), a parachute box (21) horizontally arranged in the middle of the top surface of the partition plate (20), a parachute arranged inside the parachute box (21), and a telescopic ejector (22) fixed in the middle of the inner bottom surface of the fixed box (2). A gravity self-starting component for starting the telescopic ejector (22) is arranged at the outer end inside the fixed box (2).

2. The UAV photography, aerial photography and aerial survey device according to claim 1, characterized in that: The positive electrode of the telescopic ejector (22) is electrically connected to the storage battery inside the UAV body (1) through a wire, and the negative electrode of the telescopic ejector (22) is connected to the gravity self-starting component through a wire.

3. The drone photography, aerial photography and aerial survey device according to claim 2, characterized in that: The gravity self-starting component includes a pair of separated fixed plates (23) arranged at the upper end inside the outer side of the fixed box (2), an insulating rod (24) vertically and movably penetrating through the outer end of the top surface of the partition plate (20), an iron ball (25) fixed to the bottom end of the insulating rod (24), and a conductive carbon plate (26) horizontally fixed to the top end of the insulating rod (24). One end of the wire at the negative extreme of the telescopic ejector (22) passes out to the bottom end face outside one of the fixed plates (23), and a series wire electrically connected to the storage battery inside the UAV body (1) is arranged on the other fixed plate (23); a magnet seat (27) is fixed to one side of the bottom surface of the partition plate (20), the insulating rod (24) movably penetrates through the middle of the magnet seat (27), and a magnetic suction groove matching the iron ball (25) is formed in the bottom surface of the magnet seat (27).

4. The UAV photography, aerial photography and aerial survey device according to claim 3, characterized in that: A plurality of air inlet strip openings are evenly arranged at equal intervals on the front and rear end faces of the parachute box (21).

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