A multi-angle aerial survey device based on an aerial survey UAV

Abstract

The present invention discloses a multi-angle aerial survey device based on an aerial survey UAV. The aerial survey device includes a fuselage, on which a gravity sensor is provided. Straight rods are fixedly connected to the four corners of the outer side wall of the fuselage. Working fans are provided at the ends of the upper surfaces of the straight rods far from the fuselage. An outer side protection mechanism is provided on the lower surface of the straight rod. The outer side protection mechanism includes a pop-up motor and a protection storage frame, a protection support cylinder, and a storage connection pipe that are slidably connected to each other. A rubber block is fixedly connected to the end of the storage connection pipe far from the fuselage. A photography mechanism is provided at the lower end of the fuselage. A bracket driving motor is fixedly connected to the upper surface of the fuselage. The bracket driving motor controls the up and down movement of the main rods supported on the outer side walls on the left and right sides of the fuselage through an adjusting lead screw. In the process of landing or falling, the present invention ensures that the device first contacts the ground when landing through the cooperation of the outer side protection mechanism and the upper and lower adjusting lead screws, avoiding the direct contact of the important components of the device with the ground and causing damage to the device.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a multi-angle aerial survey device based on an aerial survey unmanned aerial vehicle. Background Art

[0002] Unmanned aerial vehicle (UAV) aerial survey is a powerful supplement to traditional aerial photogrammetry means, with characteristics such as being flexible, efficient, fast, precise, having a low operation cost, wide application range, and short production cycle. It has obvious advantages in quickly obtaining high-resolution images in small areas and areas with difficult flight conditions. With the development of UAV and digital camera technologies, the digital aerial photography technology based on the UAV platform has shown its unique advantages. Now, for aerial survey photography, the acquisition of images not only meets vertical photography but also requires the acquisition of images at other angles to meet the analysis of comprehensive data. Currently, common UAV devices usually lack a structure for protecting the device. When landing or accidentally falling, they usually make hard contact with the ground, lacking a buffering effect, which easily causes the camera structure to be greatly vibrated and affects subsequent use. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-angle aerial survey device based on an aerial survey unmanned aerial vehicle. The device protects the UAV device through multiple protection mechanisms, avoiding hard contact with the ground when landing or accidentally falling, which may cause damage to the device and affect subsequent use.

[0004] To achieve the above purpose, the present invention provides a multi-angle aerial survey device based on an aerial survey unmanned aerial vehicle. The aerial survey device includes a fuselage. Four corners of the outer side wall of the fuselage are fixedly connected with straight rods. At the ends of the upper surfaces of the straight rods far from the fuselage, working fans are provided. An outer protection mechanism is arranged on the lower surface of the straight rods. A bracket driving motor is fixedly connected to the top of the fuselage. The output end of the bracket driving motor is fixedly connected with an upper adjusting screw rod. A moving plate is threadedly connected to the upper adjusting screw rod. The front and rear ends of the left and right outer walls of the fuselage are slidably connected with main support rods through limit sliding grooves. The upper end of the main support rod is fixedly connected with a connecting rod. The end of the connecting rod far from the main support rod is fixedly connected to the outer side wall of the moving plate.

[0005] A gravity sensor is provided on the body. The outer protection mechanism includes a protection storage frame and a pop-up motor. Both the protection storage frame and the pop-up motor are fixed on the lower surface of the straight rod. The pop-up motor is close to the body, and its output shaft extends into the protection storage frame. The inner side wall of the protection storage frame is slidably connected with a protection support cylinder through a limit chute. An accommodation connecting pipe is arranged inside the protection support cylinder. One end of the accommodation connecting pipe far from the body penetrates through the side wall of the protection support cylinder far from the body and is fixedly connected with a rubber block. The accommodation connecting pipe is slidably connected with the side wall of the protection support cylinder. The signal output end of the gravity sensor is connected to the control end of the pop-up motor. When the gravity sensor senses the weightlessness of the body, the pop-up motor controls the accommodation connecting pipe and the protection support cylinder to pop out. After the accommodation connecting pipe and the protection support cylinder pop out, all four working fans are located inside the plane formed by the four rubber blocks and the upper end of the upper adjustment screw rod.

[0006] A photography mechanism is provided at the bottom of the body. The photography mechanism includes a pan-tilt head. The pan-tilt head is arranged on the lower surface of the body, and several cameras are evenly distributed on the outer side of the pan-tilt head.

[0007] A preferred technical solution of the present invention: One end of the protection support cylinder far from the pop-up motor extends out of the protection storage frame and is provided with a top plate. A first spring is sleeved on the part of the protection support cylinder extending out of the protection storage frame. One end of the first spring is fixedly connected with the top plate, and the other end is connected with the protection storage frame. An annular baffle is fixedly arranged at the end of the accommodation connecting pipe located inside the protection support cylinder. The outer edge of the baffle is slidably connected with the inner wall of the protection support cylinder through a limit chute. A second spring is arranged between the baffle and the end face of the protection support cylinder close to the pop-up motor. One end of the second spring is connected with the end face of the baffle close to the pop-up motor, and the other end is connected with the inner wall of the protection support cylinder. The output end of the pop-up motor is fixedly connected with a pop-up screw rod. The pop-up screw rod passes through the protection storage frame and the protection support cylinder and extends into the accommodation connecting pipe, and is threadedly connected with the inner wall of the accommodation connecting pipe. When the pop-up motor drives the pop-up screw rod to rotate and separate from the accommodation connecting pipe, the accommodation connecting pipe pops out of the protection support cylinder under the action of the second spring, and the protection support cylinder pops out of the protection storage frame under the action of the first spring.

[0008] A preferred technical solution of the present invention: A photovoltaic panel is arranged on the outer side wall of the body. A storage battery and a controller are arranged inside the body. The photovoltaic panel charges the storage battery, and the storage battery provides power for the controller. The signal output end of the gravity sensor can be connected to the signal input end inside the controller. The signal output end of the controller is respectively connected to the control ends inside the pop-up motor and the bracket drive motor.

[0009] A preferred technical solution of the present invention: A support bottom rod is provided at one end of the support main rod away from the body. A limit groove is opened on the outer side wall of the support main rod away from the body. One end of the support bottom rod close to the body extends into the limit groove and is slidably connected to the limit groove. A buffer spring is provided in the limit groove. The upper end of the buffer spring is fixedly connected to the upper inner wall of the limit groove, and the lower end is fixedly connected to the part of the support bottom rod extending into the limit groove. One end of the support bottom rod away from the body inclines downward to the lower side of the support main rod.

[0010] A preferred technical solution of the present invention: An adjustment motor is fixedly connected to the lower end of the pan-tilt. The output end of the adjustment motor is fixedly connected with a lower adjustment lead screw. A moving cylinder is threadedly connected to the lower adjustment lead screw. Each camera is connected to the pan-tilt through a hinge member. Its camera lens faces away from the pan-tilt, and an adjustment rod is provided between each camera and the moving cylinder.

[0011] A preferred technical solution of the present invention: Damping hinges are provided between the moving cylinder and the adjustment rod, between the adjustment rod and the camera, and between the camera and the pan-tilt. One end of the outer side wall of the moving cylinder is hinged to one end of the adjustment rod through a damping hinge. The other end of the adjustment rod is hinged to the side wall of the camera close to the lower adjustment lead screw through a damping hinge. The upper end of the camera is hinged to the outer side wall of the pan-tilt through a damping hinge.

[0012] A preferred technical solution of the present invention: A contact spring is fixedly connected to the upper end of the moving cylinder. The contact spring is sleeved on the lower adjustment lead screw. The upper end of the contact spring is fixedly connected to the lower outer wall of the adjustment motor.

[0013] Compared with the related technology, the present invention has the following beneficial effects:

[0014] 1. The multi-angle aerial survey device in the present invention is provided with a plurality of cameras. Through multi-angle photography, the accuracy of the device is improved. At the same time, the adjustment motor is used to drive the lower adjustment lead screw to rotate, and the angle of the camera is adjusted through the adjustment rod, which improves the practicability of the device. At the same time, damping hinges are provided between the camera and the pan-tilt, between the adjustment rod and the camera, and between the moving cylinder and the adjustment rod to replace the traditional hinges. A contact spring is provided between the moving cylinder and the adjustment motor to avoid the shaking caused by the gaps between the traditional hinges and the thread gaps during the process of adjusting the camera, making the camera adjustment process smoother and not affecting the camera image.

[0015] 2. In the present invention, a bracket driving motor is provided above the body. After the UAV takes off, the bracket driving motor drives the upper adjusting screw rod to rotate, and then drives the supporting main rod to move upward through the connecting rod, so as to retract the supporting bottom rod upward, avoiding the influence of the supporting bottom rod and the supporting main rod on the normal operation of the camera. When the body lands, the bracket driving motor drives the adjusting screw rod to rotate to lower the bracket to support the entire device, and each bracket is provided with a buffer spring, which can play a buffering role to avoid hard contact between the body and the ground.

[0016] 3. In the present invention, an outer protection mechanism is provided below the straight rod. When the gravity sensor detects that the device is in a weightless state for a long time, the control system in the device controls the ejection motor to drive the ejection screw rod to rotate. When the ejection screw rod completely moves out of the storage connecting pipe, the protective support cylinder and the storage connecting pipe are ejected under the action of the first spring and the second spring respectively, and cooperate with the upper adjusting screw rod and the lower adjusting screw rod to ensure that the device touches the ground first when landing, avoiding direct contact between the important components of the device and the ground and causing damage to the device. At the same time, all four working fans are located inside the plane formed by the four rubber blocks and the upper end of the upper adjusting screw rod, ensuring that when the device lands obliquely, the working fans are avoided from contacting the ground through the cooperation of the storage connecting pipe and the upper adjusting screw rod, thus playing a protective role for the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 is a three-dimensional structural schematic diagram of another angle of the present invention;

[0019] Figure 3 is a partial three-dimensional structural schematic diagram of the position of the supporting main rod of the present invention;

[0020] Figure 4 is Figure 3 the partial enlarged view at A in

[0021] Figure 5 is a three-dimensional structural schematic diagram of the photographing mechanism of the present invention;

[0022] Figure 6 is a sectional three-dimensional structural schematic diagram of the outer protection mechanism of the present invention;

[0023] Figure 7 is Figure 6 the partial enlarged view at B in

[0024] Figure 8 is Figure 6 the partial enlarged view at C in

[0025] Figure 9 is a sectional three-dimensional structural schematic diagram of the outer protection mechanism of the present invention after being ejected.

[0026] In the figure: 1, body; 2, straight rod; 3, gravity sensor; 4, photography mechanism; 5, bracket drive motor; 6, upper adjustment lead screw; 7, moving plate; 8, connecting rod; 9, main support rod; 10, outer protection mechanism; 11, limit groove; 12, support bottom rod; 13, buffer spring; 14, working fan; 15, pan-tilt; 16, hinge member; 17, camera; 18, adjustment rod; 19, adjustment motor; 20, lower adjustment lead screw; 21, moving cylinder; 22, abutting spring; 23, protective storage frame; 24, protective support cylinder; 25, top plate; 26, first spring; 27, storage connecting pipe; 28, rubber block; 29, ejection motor; 30, ejection screw; 31, baffle; 32, second spring. Specific embodiments

[0027] 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 the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present invention is usually placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, terms such as "set" and "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The embodiment provides a multi-angle aerial survey device based on an aerial survey UAV, as Figures 1 to 4As shown in the figure, it includes a body 1. A bracket driving motor 5 is fixedly connected to the top of the body 1. The output end of the bracket driving motor 5 is fixedly connected to an upper adjusting lead screw 6. A moving plate 7 is threadedly connected to the upper adjusting lead screw 6. The front and rear ends of the outer walls on the left and right sides of the body 1 are slidably connected to main support rods 9 through limit chutes. The upper end of the main support rod 9 is fixedly connected to a connecting rod 8. One end of the connecting rod 8 far from the main support rod 9 is fixedly connected to the outer wall of the moving plate 7. A support bottom rod 12 is provided at the end of the main support rod 9 far from the body 1. A limit groove 11 is formed on the outer wall of the main support rod 9 far from the body 1. One end of the support bottom rod 12 close to the body 1 extends into the limit groove 11 and is slidably connected to the limit groove 11. A buffer spring 13 is arranged in the limit groove 11. The upper end of the buffer spring 13 is fixedly connected to the upper inner wall of the limit groove 11, and the lower end is fixedly connected to the part of the support bottom rod 12 extending into the limit groove 11. The end of the support bottom rod 12 far from the body 1 inclines downward to the lower side of the main support rod 9. When the UAV lands normally, the buffer spring 13 is used to change the traditional rigid contact into elastic collision, playing a certain buffering role. At the same time, the UAV landing support device adopts four support bottom rods 12 to ensure that the device can adapt to roads in different situations and avoid the problem of unstable landing caused by uneven ground of existing equipment. After the UAV takes off, the bracket driving motor 5 is used to drive the upper adjusting lead screw 6 to rotate, and then the main support rod 9 is driven to move upward through the connecting rod 8, so as to retract the support bottom rod 12 upward and prevent the support bottom rod 12 and the main support rod 9 from affecting the normal operation of the camera 17;

[0031] The embodiment provides a multi-angle aerial survey device based on an aerial survey UAV, as Figure 1 、 Figure 2 and Figure 5As shown, a photography mechanism 4 is provided at the bottom of the body 1. The photography mechanism 4 includes a pan-tilt head 15. The pan-tilt head 15 is arranged on the lower surface of the body 1. A number of cameras 17 are evenly distributed on the outer side of the pan-tilt head 15. The lower end of the pan-tilt head 15 is fixedly connected with an adjustment motor 19. The output end of the adjustment motor 19 is fixedly connected with a lower adjustment lead screw 20. A moving cylinder 21 is threadedly connected to the lower adjustment lead screw 20. Each camera 17 is connected to the pan-tilt head 15 through a hinge member 16. Its camera lens faces away from the pan-tilt head 15. An adjustment rod 18 is arranged between each camera 17 and the moving cylinder 21. Damping hinges are arranged between the moving cylinder 21 and the adjustment rod 18, between the adjustment rod 18 and the camera 17, and between the camera 17 and the pan-tilt head 15. One end of the outer side wall of the moving cylinder 21 is hinged to one end of the adjustment rod 18 through a damping hinge. The other end of the adjustment rod 18 is hinged to the side wall of the camera 17 close to the lower adjustment lead screw 20 through a damping hinge. The upper end of the camera 17 is hinged to the outer side wall of the pan-tilt head 15 through a damping hinge. The upper end of the moving cylinder 21 is fixedly connected with an abutting spring 22. The abutting spring 22 is sleeved on the lower adjustment lead screw 20. The upper end of the abutting spring 22 is fixedly connected with the lower outer wall of the adjustment motor 19. The camera 17 is located inside the plane formed by four rubber blocks 28 and the lower end of the lower adjustment lead screw 20. When the device lands in case of an abnormal situation, the rubber blocks 28 and the lower end of the lower adjustment lead screw 20 are used to contact the ground first to protect the camera 17. At the same time, a number of cameras 17 are used to realize multi-angle photography to improve the accuracy of the device. At the same time, the adjustment motor 19 is used to drive the lower adjustment lead screw 20 to rotate, and the angle of the camera 17 is adjusted through the adjustment rod 18 to improve the practicability of the device. At the same time, damping hinges are arranged between the camera 17 and the pan-tilt head 15, between the adjustment rod 18 and the camera 17, and between the moving cylinder 21 and the adjustment rod 18 to replace traditional hinges. An abutting spring 22 is arranged between the moving cylinder 21 and the adjustment motor 19 to avoid the shaking caused by the gaps between traditional hinges and the thread gaps during the process of adjusting the camera 17, making the adjustment process of the camera 17 smoother and not affecting the photography picture.

[0032] The embodiment provides a multi-angle aerial survey device based on an aerial survey UAV, as Figure 1 、 Figure 2As shown in the figure, straight rods 2 are fixedly connected to the four corners of the outer side wall of the machine body 1. Working fans 14 are arranged at the ends of the upper surfaces of the straight rods 2 away from the machine body 1. An outer side protection mechanism 10 is arranged on the lower surface of the straight rod 2. A gravity sensor 3 is arranged on the machine body 1. The outer side protection mechanism 10 includes a protection storage frame 23 and a pop-up motor 29. The protection storage frame 23 and the pop-up motor 29 are both fixed on the lower surface of the straight rod 2. The pop-up motor 29 is close to the machine body 1, and its output shaft extends into the protection storage frame 23. The inner side wall of the protection storage frame 23 is slidably connected with a protection support cylinder 24 through a limit sliding groove. A storage connecting pipe 27 is arranged inside the protection support cylinder 24. One end of the storage connecting pipe 27 away from the machine body 1 penetrates through the side wall of the protection support cylinder 24 away from the machine body 1 and is fixedly connected with a rubber block 28. The storage connecting pipe 27 is slidably connected with the side wall of the protection support cylinder 24; Figures 6 to 9 As shown in the figure, one end of the protection support cylinder 24 away from the pop-up motor 29 extends out of the protection storage frame 23 and is provided with a top plate 25. A first spring 26 is sleeved on the part of the protection support cylinder 24 extending out of the protection storage frame 23. One end of the first spring 26 is fixedly connected with the top plate 25, and the other end is connected with the protection storage frame 23; A ring-shaped baffle 31 is fixedly arranged at the end of the storage connecting pipe 27 located inside the protection support cylinder 24. The outer edge of the baffle 31 is slidably connected with the inner wall of the protection support cylinder 24 through a limit sliding groove. A second spring 32 is arranged between the baffle 31 and the end face of the protection support cylinder 24 close to the pop-up motor 29. One end of the second spring 32 is connected with the end face of the baffle 31 close to the pop-up motor 29, and the other end is connected with the inner wall of the protection support cylinder 24; The output end of the pop-up motor 29 is fixedly connected with a pop-up screw 30. The pop-up screw 30 passes through the protection storage frame 23 and the protection support cylinder 24 and extends into the storage connecting pipe 27, and is threadedly connected with the inner wall of the storage connecting pipe 27; When the pop-up motor 29 drives the pop-up screw 30 to rotate and separate from the storage connecting pipe 27, the storage connecting pipe 27 pops out of the protection support cylinder 24 under the action of the second spring 32, and the protection support cylinder 24 pops out of the protection storage frame 23 under the action of the first spring 26.

[0033] The embodiment provides a multi-angle aerial survey device based on an aerial survey UAV, as Figure 1 and Figure 2As shown in the figure, a gravity sensor 3 is provided on the body 1, a photovoltaic panel is provided on the outer wall of the body 1, and a storage battery and a controller are provided inside the body 1. The photovoltaic panel charges the storage battery, and the storage battery provides power for the controller; the charging of the photovoltaic panel is the same as that of the existing photovoltaic power generation system. The signal output end of the gravity sensor 3 is internally connected to the signal input end of the controller, and the signal output end of the controller is respectively internally connected to the control ends of the ejection motor 29 and the bracket driving motor 5. When the gravity sensor 3 detects that the device is in a weightless state for a long time, the ejection motor 29 is driven to rotate by the control system inside the device. When the ejection screw 30 is completely removed from the storage connection pipe 27, the protective support cylinder 24 and the storage connection pipe 27 are ejected respectively under the action of the first spring 26 and the second spring 32, and cooperate with the upper adjustment screw rod 6 and the lower adjustment screw rod 20 to ensure that the device touches the ground first when landing, avoiding direct contact between the important components of the device and the ground and causing damage to the device. At the same time, all four working fans 14 are located inside the plane formed by the four rubber blocks 28 and the upper end of the upper adjustment screw rod 6, ensuring that when the device lands obliquely, the cooperation between the storage connection pipe 27 and the upper adjustment screw rod 6 avoids the working fans 14 from contacting the ground, thereby playing a protective role for the device.

[0034] Working process of the present invention: An outer protection mechanism 10 is provided below the straight rod 2 of the present invention. When the gravity sensor 3 detects that the device is in a weightless state for a long time, the control system in the device controls the pop-up motor 29 to drive the pop-up screw 30 to rotate. When the pop-up screw 30 completely moves out of the storage connection pipe 27, the protection support cylinder 24 and the storage connection pipe 27 are respectively popped out under the action of the first spring 26 and the second spring 32, and cooperate with the upper adjusting screw rod 6 and the lower adjusting screw rod 20 to ensure that the device touches the ground first when landing, avoiding direct contact between the important components of the device and the ground and causing damage to the device. At the same time, all four working fans 14 are located inside the plane formed by the four rubber blocks 28 and the upper end of the upper adjusting screw rod 6, ensuring that when the device lands obliquely, the working fans 14 are prevented from contacting the ground through the cooperation of the storage connection pipe 27 and the upper adjusting screw rod 6, thereby playing a protective role for the device. A bracket driving motor 5 is provided above the body 1. After the drone takes off, the bracket driving motor 5 is used to drive the upper adjusting screw rod 6 to rotate, and then the support main rod 9 is driven to move upward through the connecting rod 8, and the support bottom rod 12 is retracted upward to avoid the support bottom rod 12 and the support main rod 9 affecting the normal operation of the camera 17. A number of cameras 17 are provided in this device. Through multi-angle photography, the accuracy of the device is improved. At the same time, the adjusting motor 19 is used to drive the lower adjusting screw rod 20 to rotate, and the angle of the camera 17 is adjusted through the adjusting rod 18 to improve the practicability of the device. At the same time, damping hinges 16 are provided between the camera 17 and the cloud platform 15, between the adjusting rod 18 and the camera 17, and between the moving cylinder 21 and the adjusting rod 18 to replace the traditional hinge, and a butting spring 22 is provided between the moving cylinder 21 and the adjusting motor 19 to avoid the shaking caused by the gaps between the traditional hinges and the thread gaps during the process of adjusting the camera 17 by the device, making the adjustment process of the camera 17 smoother and not affecting the camera image.

[0035] The above is only one embodiment of the present invention, and its description is relatively specific and detailed, but it should not be understood as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An aerial survey device with multiple angles based on an aerial survey UAV, comprising a fuselage (1), characterized in that: At the four corners of the outer side wall of the body (1), there are straight rods (2) fixedly connected. At one end of the upper surface of the straight rod (2) far from the body (1), there are working fans (14). On the lower surface of the straight rod (2), there is an outer protective mechanism (10). At the top of the body (1), there is a support driving motor (5) fixedly connected. The output end of the support driving motor (5) is fixedly connected with an upper adjusting lead screw (6). A moving plate (7) is threadedly connected to the upper adjusting lead screw (6). At the front and rear ends of the outer side walls on the left and right sides of the body (1), there are support main rods (9) slidably connected through limit sliding grooves. The upper end of the support main rod (9) is fixedly connected with a connecting rod (8). One end of the connecting rod (8) far from the support main rod (9) is fixedly connected with the outer side wall of the moving plate (7). On the body (1), there is a gravity sensor (3). The outer protective mechanism (10) includes a protective storage frame (23) and a pop-up motor (29). The protective storage frame (23) and the pop-up motor (29) are both fixed on the lower surface of the straight rod (2). The pop-up motor (29) is close to the body (1), and its output shaft extends into the protective storage frame (23). The inner side wall of the protective storage frame (23) is slidably connected with a protective support cylinder (24) through a limit sliding groove. Inside the protective support cylinder (24), there is a storage connecting pipe (27). One end of the storage connecting pipe (27) far from the body (1) penetrates through the side wall of the protective support cylinder (24) far from the body (1) and is fixedly connected with a rubber block (28). The storage connecting pipe (27) is slidably connected with the side wall of the protective support cylinder (24). The signal output end of the gravity sensor (3) is connected to the control end of the pop-up motor (29). When the gravity sensor (3) senses that the body is weightless, the pop-up motor (29) controls the storage connecting pipe (27) and the protective support cylinder (24) to pop out. After the storage connecting pipe (27) and the protective support cylinder (24) pop out, the four working fans (14) are all located inside the plane formed by the four rubber blocks (28) and the upper end of the upper adjusting lead screw (6). At the bottom of the body (1), there is a photography mechanism (4). The photography mechanism (4) includes a pan-tilt head (15). The pan-tilt head (15) is arranged on the lower surface of the body (1). A number of cameras (17) are evenly distributed on the outside of the pan-tilt head (15).

2. The aerial survey device with multiple angles based on an aerial survey UAV according to claim 1, characterized in that: One end of the protective support cylinder (24) away from the ejection motor (29) extends out of the protective storage frame (23), and is provided with a top plate (25). A first spring (26) is sleeved on the part of the protective support cylinder (24) extending out of the protective storage frame (23). One end of the first spring (26) is fixedly connected to the top plate (25), and the other end is connected to the protective storage frame (23); an annular baffle (31) is fixedly provided at the end of the storage connection pipe (27) located inside the protective support cylinder (24). The outer edge of the baffle (31) is slidably connected to the inner wall of the protective support cylinder (24) through a limiting chute. A second spring (32) is provided between the baffle (31) and the end face of the protective support cylinder (24) close to the ejection motor (29). One end of the second spring (32) is connected to the end face of the baffle (31) close to the ejection motor (29), and the other end is connected to the inner wall of the protective support cylinder (24); the output end of the ejection motor (29) is fixedly connected to an ejection screw rod (30). The ejection screw rod (30) passes through the protective storage frame (23) and the protective support cylinder (24) and extends into the storage connection pipe (27), and is threadedly connected to the inner wall of the storage connection pipe (27); when the ejection motor (29) drives the ejection screw rod (30) to rotate and separate from the storage connection pipe (27), the storage connection pipe (27) pops out of the protective support cylinder (24) under the action of the second spring (32), and the protective support cylinder (24) pops out of the protective storage frame (23) under the action of the first spring (26).

3. The aerial survey device with multiple angles based on an aerial survey UAV according to claim 1 or 2, characterized in that: A photovoltaic panel is provided on the outer side wall of the body (1). A storage battery and a controller are provided inside the body (1). The photovoltaic panel charges the storage battery, and the storage battery provides power for the controller; the signal output end of the gravity sensor (3) can be internally connected to the signal input end of the controller, and the signal output end of the controller is respectively internally connected to the control ends of the ejection motor (29) and the bracket drive motor (5).

4. The aerial survey device with multiple angles based on an aerial survey UAV according to claim 1 or 2, characterized in that: One end of the main support rod (9) away from the body (1) is provided with a support bottom rod (12). A limiting groove (11) is opened on the outer side wall of the main support rod (9) away from the body (1). One end of the support bottom rod (12) close to the body (1) extends into the limiting groove (11) and is slidably connected to the limiting groove (11). A buffer spring (13) is provided in the limiting groove (11). The upper end of the buffer spring (13) is fixedly connected to the upper inner wall of the limiting groove (11), and the lower end is fixedly connected to the part of the support bottom rod (12) extending into the limiting groove (11). One end of the support bottom rod (12) away from the body (1) inclines downward to the lower side of the main support rod (9).

5. The aerial survey device with multiple angles based on an aerial survey UAV according to claim 1 or 2, characterized in that: The lower end of the pan-tilt (15) is fixedly connected to an adjustment motor (19). The output end of the adjustment motor (19) is fixedly connected to a lower adjustment lead screw (20). A moving cylinder (21) is threadedly connected to the lower adjustment lead screw (20). Each camera (17) is connected to the pan-tilt (15) through a hinge member (16), and its camera is oriented towards the side away from the pan-tilt (15), and an adjustment rod (18) is provided between each camera (17) and the moving cylinder (21).

6. The aerial survey device with multiple angles based on an aerial survey UAV according to claim 5, characterized in that: Damping hinges are provided between the moving cylinder (21) and the adjusting rod (18), between the adjusting rod (18) and the camera (17), and between the camera (17) and the pan-tilt head (15). One end of the outer side wall of the moving cylinder (21) is hinged to one end of the adjusting rod (18) through a damping hinge, the other end of the adjusting rod (18) is hinged to one side wall of the camera (17) close to the lower adjusting screw rod (20) through a damping hinge (16), and the upper end of the camera (17) is hinged to the outer side wall of the pan-tilt head (15) through a damping hinge.

7. The aerial survey device with multiple angles based on an aerial survey UAV according to claim 5, characterized in that: An abutting spring (22) is fixedly connected to the upper end of the moving cylinder (21). The abutting spring (22) is sleeved on the lower adjusting screw rod (20), and the upper end of the abutting spring (22) is fixedly connected to the lower outer wall of the adjusting motor (19).

Images