An adaptive UAV geographic information mapping device

Abstract

The present invention provides an adaptive UAV geographic information surveying and mapping device applied to the field of UAV surveying and mapping. Through the cooperation of a deformable bracket, when the UAV lands normally on a flat and solid ground, the deformable bracket does not undergo deformation treatment, and shock absorption and buffering can be achieved through shock-absorbing components. When the landing ground of the UAV is a slope terrain such as a grass slope, the deformable support rod bends inward, and the sliding of the deformable support rod that fits the slope can be utilized to assist the UAV to achieve a sliding landing effect, avoiding the direct fall of the UAV on the surface of the slope terrain and causing rollover, thereby ensuring the safety of the UAV. When the deformable support rod bends, the air ring strips can quickly extend and be strung into a circle to strengthen the connection stability between the deformable support rods. During this process, the traction cable drives the arc-shaped rocker to deflect, forming a fan-shaped structure, increasing the buoyancy support area when the UAV lands on the liquid surface and increasing the stability when the UAV lands on the liquid surface.

Description

Technical Field

[0001] This application relates to the field of UAV mapping, and particularly to an adaptive UAV geographic information mapping device. Background Art

[0002] In recent years, the rapidly developing UAV technology combined with photography technology has opened a new door for rapid data acquisition in mapping. It is not only less restricted by airspace, with a short time-consuming process from planning to implementation, but also because of its low flight altitude, the UAV can perform oblique photography in the air to provide different photos of the same ground object from multiple angles, which can effectively eliminate dead angles in aerial surveys, reduce or completely eliminate ground fieldwork re-survey work, and greatly improve the mapping environment and mapping quality.

[0003] In the prior art, in order to protect the safety of the UAV during landing, shock-absorbing devices are usually installed at the bottom of the UAV's frame to ensure that the impact force received when the UAV lands is small and will not damage the camera equipment carried on the surface of the fuselage. However, the environment is relatively complex and changeable when the UAV is shooting outdoors, so the landing point of the UAV will also change accordingly. Therefore, a single shock-absorbing device is difficult to meet the needs of the UAV for safe landing.

[0004] For this reason, we propose an adaptive UAV geographic information mapping device. By deforming the UAV bracket to adapt to different landing point environments, the UAV can have stable support and protection when landing in different environments, thereby ensuring the safety of the mapping UAV and its surface equipment. Summary of the Invention

[0005] The purpose of this application is to use the deformation treatment of the UAV bracket to enable the UAV to provide a stable landing environment for different landing points in different environments during outdoor work, thereby ensuring the landing safety of the UAV. Compared with the prior art, an adaptive UAV geographic information mapping device is provided, including a UAV frame and a deformable bracket. The inside of the UAV frame is hollow-designed. A camera is installed inside the UAV frame. A detection antenna is installed on the top of the UAV frame. UAV wings are installed on the surface of the UAV frame. A deformable bracket is installed at the bottom of the UAV frame. The deformable bracket includes a fixed support rod and a deformable support rod. Fixed support rods are fixedly installed at the four corners of the bottom of the UAV frame. A rotating shaft member is connected to the tail end of the fixed support rod. The tail end of the fixed support rod is movably connected to the deformable support rod through the rotating shaft member. A shock-absorbing member is embedded at the tail end of the fixed support rod.

[0006] Further, the shock-absorbing member includes an electromagnetic disk, a spring shock-absorbing telescopic column, and an iron sheet. Electromagnetic disks symmetrically arranged with respect to the rotating shaft member are inlaid at the tail end of the fixed support rod. The surface of the electromagnetic disk is connected to the spring shock-absorbing telescopic column. The tail end of the spring shock-absorbing telescopic column is connected to the iron sheet. A depression matching the iron sheet is provided on the surface of the end of the deformable support rod close to the fixed support rod.

[0007] Further, the inner surface of the tail end of the fixed strut is connected to the inner surface of the top end of the deformable strut by a spring strip, and the spring strip is in a stretched state when the fixed strut and the deformable strut are on the same axis.

[0008] Further, a through circular groove is provided inside the tail end of the deformable strut, magnetic attraction blocks that attract each other are installed inside the circular groove, an air ring strip is connected between the two groups of magnetic attraction blocks, and the air ring strip is in a squeezed and contracted state.

[0009] Further, the magnetic attraction force between the magnetic attraction blocks at the inner ends of every two adjacent groups of circular grooves is F1, the magnetic attraction force between the two magnetic attraction blocks inside each group of circular grooves is F2, and F1 is greater than F2.

[0010] Further, an arc-shaped groove is provided inside the deformable strut, and the tail end of the arc-shaped groove is connected to the circular groove in a penetrating manner. The inner wall of the top end of the arc-shaped groove is connected to two stacked arc-shaped flippers by a shaft rod. The tail end of each arc-shaped flipper is connected to a traction cable, and the two traction cables are arranged oppositely. The tail ends of the two traction cables are respectively connected to the surfaces of the two magnetic attraction blocks.

[0011] Further, compression springs symmetrically arranged with respect to the arc-shaped flippers are installed on the inner wall of the arc-shaped groove, and the installation planes of the two compression springs are flush with the two arc-shaped flippers respectively. The tail end of each compression spring has a distance of 1-3 cm from the side surface of each arc-shaped flipper.

[0012] Further, both the deformable strut and the arc-shaped flipper are made of lightweight and high-strength materials, and the tail end of the deformable strut is designed to be inwardly warped.

[0013] Further, the air ring strip is made of an elastic and wear-resistant composite material, and symmetrically arranged annular magnetic attraction grooves are provided on the inner wall of the circular groove, and there is a magnetic attraction effect between the annular magnetic attraction grooves and the magnetic attraction blocks.

[0014] Further, the tail end of the fixed strut is lower than the bottom end of the drone wing, and the fixed strut is made of stainless steel material.

[0015] Compared with the prior art, the advantages of the present application are as follows:

[0016] (1) When the drone normally lands on a flat and solid ground, the deformable bracket does not undergo deformation treatment, and the corresponding shock absorption and buffering treatment can be achieved through the shock absorption member. When the ground where the drone lands is a slope terrain such as a grass slope, the deformable strut bends inward, reducing the overall center of gravity of the drone, and can slide on the slope with the deformable strut that fits the slope, assisting the drone to achieve a sliding landing effect, avoiding the drone from directly falling on the slope terrain surface and causing rollover, thereby ensuring the safety of the drone.

[0017] (2) The spring strip is in a stretched state in its initial state. Therefore, when the fixed support rod and the deformable support rod lose their corresponding limiting functions, the deformable support rod bends inward under the action of the spring strip, thereby realizing the deformation treatment of the deformable bracket.

[0018] (3) When the deformable support rod bends, the circular through grooves that were originally far apart approach each other. At this time, the magnetic attraction blocks inside the adjacent two groups of circular through grooves that approach each other attract each other, thereby enabling the air ring strips connected thereto to quickly extend and be strung into a circle, strengthening the connection stability between the four deformable support rods, and enabling the drone to have a more stable supporting effect when landing.

[0019] (4) After the magnetic attraction block pops out of the circular through groove, it drives the arc-shaped flap to deflect under the action of the traction cable, thereby forming a fan-shaped structure, increasing the buoyancy support area when the drone lands on the liquid surface, and increasing the stability when the drone lands on the liquid surface.

[0020] (5) The inwardly curved design at the tail end of the deformable support rod enables the tail end of the deformable support rod to maintain a distance from the landing surface after bending, thereby preventing the tail end of the deformable support rod from directly contacting the slope when the drone slides along the slope, affecting the sliding of the drone and then causing the drone to roll over on the slope, and thus ensuring the safety of the drone when sliding and landing on the slope. Description of the Drawings

[0021] Figure 1 Schematic installation diagram of the drone frame, camera, detection antenna, drone wing and deformable bracket of the present application;

[0022] Figure 2 Assembly drawing of the deformable bracket of the present application;

[0023] Figure 3 Installation drawing of the deformable bracket, rotating shaft member and shock absorber of the present application;

[0024] Figure 4 Schematic assembly diagram of the rotating shaft member of the present application;

[0025] Figure 5 Internal schematic diagram of the deformable support rod and circular through groove of the present application;

[0026] Figure 6 Limiting and buffering state diagram of the shock absorber when the landing ground of the present application is a flat and solid ground;

[0027] Figure 7 Schematic diagram of the state where the deformable support rod is bent and the air ring strips are strung into a circle of the present application;

[0028] Figure 8 Schematic diagram of the state where the drone slides on the slope of the present application;

[0029] Figure 9Internal schematic diagram of the deformable strut of the present application;

[0030] Figure 10 Schematic diagram of the traction and pulling-out state of the arc-shaped rocker of the present application.

[0031] Explanation of the reference numerals in the figure:

[0032] 1. UAV frame; 2. Camera; 3. Detection antenna; 4. UAV wing; 5. Deformable bracket; 51. Fixed strut; 52. Deformable strut; 53. Rotating shaft member; 54. Shock absorber; 55. Circular through groove; 521. Compression spring; 522. Arc-shaped rocker; 523. Traction cable; 541. Electromagnetic disk; 542. Spring shock-absorbing telescopic column; 543. Iron sheet; 551. Magnetic attraction block; 552. Air ring strip. Specific implementation mode

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0034] Embodiment 1:

[0035] The present invention provides an adaptive UAV geographic information surveying and mapping device. Please refer to Figure 1-3 , Figure 6 and Figure 8 , which includes a UAV frame 1 and a deformable bracket 5. The inside of the UAV frame 1 is designed to be hollow. A camera 2 is installed inside the UAV frame 1. A detection antenna 3 is installed on the top of the UAV frame 1. A UAV wing 4 is installed on the surface of the UAV frame 1. A deformable bracket 5 is installed at the bottom of the UAV frame 1. The deformable bracket 5 includes a fixed strut 51 and a deformable strut 52. Fixed struts 51 are fixedly installed at the four corners of the bottom of the UAV frame 1. The tail end of the fixed strut 51 is connected to a rotating shaft member 53. The tail end of the fixed strut 51 is movably connected to a deformable strut 52 through the rotating shaft member 53. A shock absorber 54 is embedded at the tail end of the fixed strut 51.

[0036] Specifically, the detection antenna 3 is equipped with a GPS system inside, which can assist the UAV to achieve corresponding terrain judgment;

[0037] When the drone lands normally on a flat and solid ground, the deformation bracket 5 does not undergo corresponding deformation treatment, and the corresponding shock absorption and buffering treatment can be achieved through the shock absorber 54. When the landing ground of the drone is a slope terrain such as a grass slope, after the terrain trend is detected by the detection antenna 3, the electromagnetic disk 541 in the shock absorber 54 is activated, so that the shock absorber 54 shortens and loses the constraint on the deformation rod 52. Then, the deformation rod 52 buckles and bends inward, reducing the overall center of gravity of the drone, and can slide on the slope with the deformation rod 52 attached to the slope, assisting the drone to achieve the effect of sliding landing, avoiding the drone from directly falling on the slope terrain surface and causing rollover, thereby ensuring the safety of the drone.

[0038] Please refer to Figure 4 , the shock absorber 54 includes an electromagnetic disk 541, a spring shock absorption telescopic column 542 and an iron sheet 543. The tail end of the fixed rod 51 is inlaid and installed with electromagnetic disks 541 symmetrically arranged about the rotating shaft member 53. The surface of the electromagnetic disk 541 is connected with a spring shock absorption telescopic column 542, and the tail end of the spring shock absorption telescopic column 542 is connected with an iron sheet 543. A depression matching the iron sheet 543 is provided on the surface of the end of the deformation rod 52 close to the fixed rod 51.

[0039] Specifically, when the electromagnetic disk 541 is activated, the iron sheet 543 is adsorbed and close to the electromagnetic disk 541, so that the spring shock absorption telescopic column 542 is compressed, enabling the originally limited and constrained fixed rod 51 and deformation rod 52 to achieve deformation activities under the cooperation of the rotating shaft member 53, and further enabling the deformation bracket 5 to assist the drone to achieve adaptive switching processing for different terrains during landing.

[0040] The inner surface of the tail end of the fixed rod 51 and the inner surface of the top end of the deformation rod 52 are connected by a spring strip, and the spring strip is in a stretched state when the fixed rod 51 and the deformation rod 52 are on the same axis.

[0041] Specifically, the spring strip is in a stretched state in the initial state. Therefore, when the fixed rod 51 and the deformation rod 52 lose the corresponding limiting effect, the deformation rod 52 bends inward under the action of the spring strip, thereby realizing the deformation treatment of the deformation bracket 5.

[0042] Please refer to Figure 5 , a through circular groove 55 is provided inside the tail end of the deformation rod 52. A magnetic attraction block 551 is installed inside the circular groove 55, and an air ring strip 552 is connected between the two groups of magnetic attraction blocks 551, and the air ring strip 552 is in a compressed and contracted state.

[0043] Specifically, when the deformable strut 52 is bent, the originally relatively distant circular through slots 55 approach each other. At this time, the magnetic attraction blocks 551 inside the adjacent two groups of circular through slots 55 that approach each other attract each other, so that the air ring strips 552 connected thereto can be quickly extended and strung into a ring, strengthening the connection stability between the four deformable struts 52 and enabling the drone to have a more stable supporting effect when landing.

[0044] The magnetic attraction force between the magnetic attraction blocks 551 at the inner ends of every two adjacent groups of circular through slots 55 is F1, and the magnetic attraction force between the two magnetic attraction blocks 551 inside each group of circular through slots 55 is F2, and F1 is greater than F2.

[0045] Specifically, in view of F1 being greater than F2, when the deformable strut 52 is bent, the magnetic attraction blocks 551 inside the adjacent two groups of circular through slots 55 that approach each other can successfully overcome the magnetic attraction between the magnetic attraction blocks 551 inside the same group of circular through slots 55, and then attract each other to assist in realizing the stringing and forming of the air ring strip 552.

[0046] Please refer to Figure 9-10 , an arc-shaped groove is provided inside the deformable strut 52, and the tail end of the arc-shaped groove is connected to the circular through slot 55 in a penetrating manner. Two stacked arc-shaped rocker plates 522 are connected to the inner wall at the top of the arc-shaped groove through a shaft rod. The tail end of each arc-shaped rocker plate 522 is connected to a traction cable 523, and the two traction cables 523 are arranged oppositely. The tail ends of the two traction cables 523 are respectively connected to the surfaces of the two magnetic attraction blocks 551.

[0047] Specifically, after the magnetic attraction block 551 rushes out of the circular through slot 55, under the action of the traction cable 523, the arc-shaped rocker plate 522 is driven to deflect, and then a fan-shaped structure is formed, increasing the buoyancy support area when the drone lands on the liquid surface and increasing the stability when the drone lands on the liquid surface. If the landing surface is a slope, the sliding area is effectively increased, improving the deceleration landing effect.

[0048] Compression springs 521 symmetrically arranged with respect to the arc-shaped rocker plate 522 are installed on the inner wall of the arc-shaped groove, and the installation planes of the two compression springs 521 are flush with the two arc-shaped rocker plates 522 respectively. The tail end of each compression spring 521 is 3 cm away from the side surface of each arc-shaped rocker plate 522.

[0049] Specifically, after the arc-shaped rocker plate 552 is pulled and pulled by the magnetic attraction block 551, it deflects accordingly and simultaneously compresses the compression spring 521. After the air ring strip 552 is received, the arc-shaped rocker plate 522 can be reset by means of the elastic action of the compression spring 521.

[0050] The deformable strut 52 and the arc-shaped rocker plate 522 are both made of lightweight and high-strength materials, and the tail end of the deformable strut 52 is designed with an inward warp.

[0051] Specifically, the density of the lightweight and high-strength material is less than that of water. Therefore, when the arc-shaped rocker 522 is pulled open, it can cooperate with the air ring strips 552 connected in a circle to enhance the buoyancy support of the drone itself. Moreover, the inward-curving design at the tail end makes the tail end of the deformable strut 52 keep a distance from the landing surface after bending, so as to prevent the tail end of the deformable strut 52 from directly contacting the slope when the drone slides along the slope, which affects the sliding of the drone and then causes the drone to roll over on the slope, thus ensuring the safety of the drone during the landing slide on the slope.

[0052] The air ring strips 552 are made of an elastic and wear-resistant composite material, and symmetrically arranged annular magnetic attraction grooves are provided on the inner wall of the circular through groove 55, and there is a magnetic attraction effect between the annular magnetic attraction grooves and the magnetic attraction blocks 551.

[0053] Specifically, the air ring strips 522 have wear resistance, which can protect the integrity of the gas inside the air ring strips 552, and thus ensure the buoyancy support of the air ring strips 552 when the drone lands on the surfaces of environments such as water, swamps, and wetlands. When the air ring strips 552 need to be stored, the magnetic attraction blocks 551 adsorbed together are peeled off, and then the magnetic attraction blocks 551 are put into the annular magnetic attraction grooves in the circular through groove 55, and the corresponding storage process of the magnetic attraction blocks 551 and the air ring strips 552 can be realized.

[0054] Please refer to Figure 7 , the tail end of the fixed strut 51 is lower than the bottom end of the drone wing 4, and the fixed strut 51 is made of stainless steel.

[0055] Specifically, since the bottom end of the drone wing 4 is located above the tail end of the fixed strut 51, even when the deformable strut 52 is bent, the drone wing 4 will not contact the landing surface, thus preventing the drone wing 4 from having a collision accident. In addition, the fixed strut 51 is made of steel structure and has a certain self-weight, which can make the gravity distribution of this drone more balanced, avoid the upper part being too heavy and the lower part being too light, reduce the occurrence of rollover accidents, and thus ensure the safety of the drone during the landing process.

[0056] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution of the present application and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present application.

Claims

1. An adaptive UAV geographic information mapping device, comprising a UAV frame (1) and a deformable bracket (5), characterized in that, The interior of the drone frame (1) is designed to be hollow. A camera (2) is installed inside the drone frame (1). A detection antenna (3) is installed on the top of the drone frame (1). Drone wings (4) are installed on the surface of the drone frame (1). A deformation bracket (5) is installed at the bottom of the drone frame (1). The deformation bracket (5) includes a fixed support rod (51) and a deformable support rod (52). Fixed support rods (51) are fixedly installed at the four corners of the bottom of the drone frame (1). A rotating shaft member (53) is connected to the tail end of the fixed support rod (51). The tail end of the fixed support rod (51) is movably connected to the deformable support rod (52) through the rotating shaft member (53). A shock absorber (54) is embedded at the tail end of the fixed support rod (51); The shock absorber (54) includes an electromagnetic disk (541), a spring shock-absorbing telescopic column (542), and an iron sheet (543). Electromagnetic disks (541) symmetrically arranged with respect to the rotating shaft member (53) are inlaid at the tail end of the fixed support rod (51). A spring shock-absorbing telescopic column (542) is connected to the surface of the electromagnetic disk (541). An iron sheet (543) is connected to the tail end of the spring shock-absorbing telescopic column (542). A depression matching the iron sheet (543) is provided on the surface of the end of the deformable support rod (52) close to the fixed support rod (51); A through circular through groove (55) is provided inside the tail end of the deformable support rod (52). Magnet attracting blocks (551) that attract each other are installed inside the circular through groove (55). An air ring strip (552) is connected between the two groups of magnet attracting blocks (551), and the air ring strip (552) is in a compressed and contracted state.

2. An adaptive UAV geographic information mapping device according to claim 1, characterized in that, The inner surface of the tail end of the fixed support rod (51) and the inner surface of the top end of the deformable support rod (52) are connected by a spring strip, and the spring strip is in a stretched state when the fixed support rod (51) and the deformable support rod (52) are on the same axis.

3. An adaptive UAV geographic information mapping device according to claim 1, characterized in that, The magnetic attraction force between the magnet attracting blocks (551) at the inner ends of every two adjacent circular through grooves (55) is F1, and the magnetic attraction force between the two magnet attracting blocks (551) inside each circular through groove (55) is F2, and F1 is greater than F2.

4. An adaptive UAV geographic information mapping device according to claim 1, characterized in that, An arc-shaped groove is provided inside the deformable support rod (52), and the tail end of the arc-shaped groove is connected to the circular through groove (55) in a penetrating manner. Two stacked arc-shaped rocker plates (522) are connected to the inner wall of the top end of the arc-shaped groove through a shaft rod. A traction cable (523) is connected to the tail end of each group of arc-shaped rocker plates (522), and the two traction cables (523) are arranged oppositely. The tail ends of the two traction cables (523) are respectively connected to the surfaces of the two magnet attracting blocks (551).

5. An adaptive UAV geographic information mapping device according to claim 4, characterized in that, Compression springs (521) symmetrically arranged with respect to the arc-shaped rocker plates (522) are installed on the inner wall of the arc-shaped groove, and the installation planes of the two compression springs (521) are flush with the two arc-shaped rocker plates (522) respectively. The tail end of each compression spring (521) has a distance of 1 - 3 cm from the side surface of each arc-shaped rocker plate (522).

6. The adaptive UAV geographic information mapping device according to claim 5, wherein, The deformable support rod (52) and the arc-shaped rocker plate (522) are both made of lightweight and high-strength materials, and the tail end of the deformable support rod (52) is designed to be inwardly warped.

7. An adaptive UAV geographic information mapping device according to claim 1, characterized in that, The air ring strip (552) is made of an elastic and wear-resistant composite material, and symmetrically arranged annular magnetic attraction grooves are provided on the inner wall of the circular through groove (55), and there is a magnetic attraction effect between the annular magnetic attraction grooves and the magnetic attraction blocks (551).

8. An adaptive UAV geographic information mapping device according to claim 1, characterized in that, The tail end of the fixed support rod (51) is lower than the bottom end of the drone wing (4), and the fixed support rod (51) is made of stainless steel.

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