Portable unmanned aerial vehicle ground target device

Abstract

The portable unmanned aerial vehicle ground target device comprises a capsule mechanism and a launching mechanism, the capsule mechanism comprises a capsule body, a supporting rod, a high-pressure gas cylinder and a pulling rope, the top end of the supporting rod is connected with the bottom end of the capsule body, the high-pressure gas cylinder is arranged in the capsule body, and an exhaust port of the high-pressure gas cylinder communicates with an inner cavity of the capsule body; identification pigment is arranged in a cavity in the capsule body, and one end of the traction rope is connected with an exhaust switch of the high-pressure gas cylinder; the launching mechanism comprises a crossbow arm, a crossbow, a bowstring and a triggering mechanism, the crossbow is installed on the crossbow arm, the two ends of the bowstring are connected with the two ends of the crossbow respectively, and a guide groove is formed in the crossbow arm in the length direction of the crossbow arm. The method has the advantages that unmanned aerial vehicle aerial photography and aerial survey canopy targets can be formed on tree crowns to serve as ground phase control points for unmanned aerial vehicle recognition, and clear recognition marks can be formed in images; the whole device is compact in structure, suitable for being carried and used in dense forest areas, low in use cost, easy to operate and easy to popularize.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle (UAV) aerial surveying, and in particular to a portable UAV ground target device. Background Art

[0002] Phase control points are an extremely important requirement in drone aerial photography and surveying. Reasonable and effective phase control points are the basis for photogrammetry control encryption and mapping, and directly affect the accuracy and reliability of drone aerial photography results and subsequent products. Phase control points are usually arranged in unobstructed areas.

[0003] The phased-control points currently used in China are divided into two types: target phased-control points and spray phased-control points. The target phased-control points are printed 60cm×60cm phased-control plates. They need to be placed in an unobstructed and unshadowed area during use. They are easy to be moved during use and need to be recovered in time after use. Spray phased-control points are fixed in position and have a longer shelf life. However, when spraying, they also need to be placed in an open, unobstructed, unshadowed near-ground area. Right-angle mold control is also required for on-site spraying or painting.

[0004] Existing ground targets for drones need to be placed in an unobstructed and shadowless area during use, and are easily moved during use and need to be recovered in time after use, so they cannot be used in large areas of forest. Therefore, a new target device needs to be designed to solve the above technical problems. Summary of the invention

[0005] To this end, the present invention provides a portable unmanned aerial vehicle ground target device to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] According to a first aspect of the present invention, a portable unmanned aerial vehicle ground target device comprises a capsule mechanism and a launching mechanism, wherein the capsule mechanism comprises a capsule body, a support rod, a high-pressure gas cylinder and a traction rope, wherein the top end of the support rod is connected to the bottom end of the capsule body, the high-pressure gas cylinder is arranged in the capsule body, the exhaust port of the high-pressure gas cylinder is communicated with the internal cavity of the capsule body, the internal cavity of the capsule body is provided with a marking pigment, and one end of the traction rope is connected to the exhaust switch of the high-pressure gas cylinder;

[0008] The launching mechanism comprises a crossbow arm, a crossbow, a bowstring and a trigger mechanism, wherein the crossbow is mounted on the crossbow arm, two ends of the bowstring are respectively connected to two ends of the crossbow, the crossbow arm is provided with a guide groove along its length direction, the guide groove is used to accommodate the support rod, the trigger mechanism is arranged on the crossbow arm, and the end of the traction rope facing away from the high-pressure gas cylinder is connected to the crossbow arm.

[0009] Furthermore, the capsule body comprises a guide end and a main tube, the guide end is conical, the bottom end of the guide end is connected to the top end of the main tube, and the marking pigment is arranged in the main tube.

[0010] Furthermore, a blasting guide line is provided at the connection between the guide end and the main tube, and the capsule body can blast along the blasting guide line and spray out the marking pigment after being inflated.

[0011] Furthermore, the support rod is threadedly connected to the capsule body.

[0012] Furthermore, the interior of the support rod is hollow, and a section of the traction rope close to the high-pressure gas cylinder is arranged along the hollow channel inside the support rod.

[0013] Furthermore, a tail wing is provided at the bottom end of the support rod.

[0014] Furthermore, the launching mechanism also includes a tripod, and the tripod is arranged at the bottom end of the crossbow arm.

[0015] Furthermore, the launching mechanism also includes a level, and the level is arranged on the crossbow arm.

[0016] Furthermore, the launching mechanism also includes a sight, and the sight is arranged on the crossbow arm.

[0017] Furthermore, it also includes a buckle, which is arranged on the crossbow arm and is used to fix the end of the traction rope away from the high-pressure gas cylinder.

[0018] The present invention has the following advantages: during use, the capsule mechanism can be launched to above the forest canopy by a launching mechanism, and the specific height that the capsule mechanism can reach is controlled by the length of the traction rope. After the capsule mechanism reaches the highest point, the traction rope is dragged to open the exhaust port of the high-pressure gas cylinder under the action of inertia, so that the capsule body is inflated and explodes to spray out the marking pigment. After the marking pigment is deposited on the canopy, a marking area of ​​a certain area is formed as a canopy target for drone aerial photography and aerial survey. The canopy target can be used as a ground phased control point for drone identification, and a clear identification mark can be formed in the image; by measuring the coordinate information of the target, the precise coordinates of the position marked by the target can be obtained, providing precise position correspondence information for later image stitching and registration; the entire device has a compact structure, is suitable for carrying and use in dense forests, has a low cost of use, is simple to operate, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 A schematic diagram of the overall structure of a portable UAV ground target device provided for some embodiments of the present invention.

[0022] Figure 2 A schematic diagram of the overall structure of a capsule mechanism of a portable UAV ground target device provided in some embodiments of the present invention.

[0023] In the figure: 1. capsule body, 2. high-pressure gas cylinder, 3. guide end, 4. blasting guide line, 5. main barrel, 6. support rod, 7. crossbow arm, 8. guide groove, 9. traction rope, 10. trigger mechanism, 11. tripod, 12. crossbow, 13. bowstring, 14. sight, 15. level, 16. buckle, 17. tail fin. DETAILED DESCRIPTION

[0024] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1 and Figure 2As shown, a portable UAV ground target device in an embodiment of the first aspect of the present invention includes a capsule mechanism and a launching mechanism, the capsule mechanism includes a capsule body 1, a support rod 6, a high-pressure gas cylinder 2 and a traction rope 9, the top of the support rod 6 is connected to the bottom of the capsule body 1, the high-pressure gas cylinder 2 is arranged in the capsule body 1, the exhaust port of the high-pressure gas cylinder 2 is communicated with the internal cavity of the capsule body 1, the internal cavity of the capsule body 1 is provided with a marking pigment, specifically, a marking pigment containing cavity is provided in the capsule body 1, the marking pigment is arranged in the marking pigment containing cavity, the high-pressure gas cylinder 2 is arranged at the bottom of the capsule body 1, the bottom of the capsule body 1 is provided with a containing cavity, the high-pressure gas cylinder 2 is arranged in the containing cavity, and the exhaust port of the high-pressure gas cylinder 2 is communicated with the marking pigment containing cavity;

[0027] One end of the traction rope 9 is connected to the exhaust switch of the high-pressure gas cylinder 2. The specific structure of the high-pressure gas cylinder 2 is the same as the gas cylinder structure used in the automatic inflatable life jacket in the prior art, and its specific structure is not repeated here. The exhaust switch of the high-pressure gas cylinder 2 can be opened by dragging the traction rope 9, and the high-pressure gas cylinder 2 fills the high-pressure gas into the marking pigment containing cavity, so that the capsule explodes and sprays out the marking pigment;

[0028] The launching mechanism can be designed with reference to the existing crossbow structure. Specifically, the launching mechanism includes a crossbow arm 7, a crossbow 12, a bowstring 13 and a trigger mechanism 10. The crossbow 12 is installed on the crossbow arm 7, and the two ends of the bowstring 13 are respectively connected to the two ends of the crossbow 12. The crossbow arm 7 is provided with a guide groove 8 along its length direction, and the guide groove 8 is used to accommodate the support rod 6. The trigger mechanism 10 is arranged on the crossbow arm 7. The trigger mechanism 10 can adopt the crossbow structure of the existing middle bow crossbow. The trigger mechanism 10 can also adopt the form of a motor-driven lever rotation. When the motor drive method is adopted, it can be controlled by remote remote control to prevent the marking pigment of the capsule body 1 from being spilled on the operator. The end of the traction rope 9 away from the high-pressure gas cylinder 2 is connected to the crossbow arm 7.

[0029] In this embodiment, it should be noted that the marking pigment uses a degradable pigment, and the marking pigment is mixed with foliar fertilizer. The marking pigment is pink or magenta. The difference between these two colors of pigment and the green grayscale of the vegetation canopy in the image grayscale is the largest, and the difference is also obvious when the visible light is recognized. Foliar fertilizer and pigment not only do not destroy the forest canopy, but also help the growth of leaves because of the nutrients they contain;

[0030] The capsule mechanism adopts a disposable product design and does not need to be recycled after launch. The capsule body 1, the support rod 6 and the traction rope 9 are all made of degradable materials;

[0031] The high-pressure gas cylinder 2 is filled with inert gas. During use, the capsule body 1 is exploded by the high-pressure gas. There is no risk of causing forest fires during the explosion of the capsule body 1, which is safer and more reliable.

[0032] The traction rope 9 can be folded and bent for many times, and has a rough ruler (such as meter level) to facilitate setting the height of the capsule body 1 before use. Generally, the length of the wire is controlled within 30 meters, which can cover the height of most dense forests.

[0033] Furthermore, the specific usage of the entire device is as follows. During use, the capsule mechanism can be launched to above the forest canopy through the launching mechanism. The specific height that the capsule mechanism can reach is controlled by the length of the traction rope 9. Usually, the launching height of the capsule mechanism is above three meters at the canopy height. After reaching the specified height, the capsule mechanism still has a tendency to move upward, but it will be restricted by the length of the traction rope 9 and cannot move. The traction rope 9 will drag and open the exhaust port of the high-pressure gas cylinder 2, so that the capsule body 1 will explode after inflation and spray out the marking pigment to form a circle with a diameter of 3m to 5m. After the marking pigment is deposited on the canopy, a certain area of ​​the marking area is formed as a canopy target for drone aerial photography and aerial survey. The canopy target can be used as a ground phased control point for drone identification. After use, cut off the traction rope 9 and discard the entire capsule mechanism. The capsule mechanism is disposable and does not need to be recycled, and the entire launching mechanism is reusable. During use, you only need to carry one launching mechanism and multiple capsule mechanisms to complete target operations in multiple positions.

[0034] The technical effects achieved by this embodiment are: canopy targets for drone aerial photography and aerial survey canopy can be formed in the tree canopy as ground phased control points for drone identification, and can form clear identification marks in the image; by measuring the coordinate information of the target, the precise coordinates of the position marked by the target can be obtained, providing accurate position correspondence information for later image stitching and registration; the entire device has a compact structure and is suitable for carrying and use in dense forests, with low cost, simple operation, and easy promotion. It overcomes the dependence of drone aerial survey phased control points on open, unobstructed, and unshadowed sites, solves the problem of reasonable layout of phased control points in dense forests, and greatly reduces the workload of ground phased control point layout personnel.

[0035] Example 2

[0036] like Figure 1 and Figure 2 As shown, another portable UAV ground target device provided in this embodiment has a structure including all the contents of Embodiment 1, and only the different parts are described below.

[0037] In this embodiment, the capsule body 1 includes a guide end 3 and a main tube 5, the guide end 3 is conical, the bottom end of the guide end 3 is connected to the top end of the main tube 5, and the marking pigment is arranged in the main tube 5. Specifically, the guide end 3 is conical, and the main tube 5 is cylindrical;

[0038] An explosion guide line 4 is provided at the connection between the guide end 3 and the main tube 5. The explosion guide line 4 serves as a weak area of ​​the capsule body 1. After the capsule body 1 is inflated, it can be exploded along the explosion guide line 4 and spray out the marking pigment.

[0039] In this embodiment, it should be noted that the support rod 6 is threadedly connected to the capsule body 1. Specifically, the top of the support rod 6 is provided with an external thread, and the bottom of the capsule body 1 is provided with a threaded hole. The top of the support rod 6 is threadedly connected to the threaded hole at the bottom of the capsule body 1.

[0040] Furthermore, the interior of the support rod 6 is hollow, and a section of the traction rope 9 close to the high-pressure gas cylinder 2 is arranged along the hollow channel inside the support rod 6; a tail 17 is provided at the bottom end of the support rod 6, and the tail 17 is used to maintain the stability of the flight direction after launch.

[0041] The technical effect achieved by this embodiment is as follows: the capsule body 1 includes a guide end 3 and a main tube 5, the guide end 3 is conical, which is convenient for directional launch and not easy to deviate; the support rod 6 is threadedly connected to the capsule body 1, which is convenient for disassembly and assembly and easy to carry.

[0042] Example 3

[0043] like Figure 1 and Figure 2 As shown, another portable UAV ground target device provided in this embodiment has a structure including all the contents of Embodiment 1, and only the different parts are described below.

[0044] In this embodiment, the launching mechanism further includes a tripod 11, which is disposed at the bottom end of the crossbow arm 7. The tripod 11 is retractable and foldable, and each leg of the tripod 11 is provided with a pointed end at the bottom end for easy insertion into the ground for fixation.

[0045] In the present embodiment, it should be noted that a buckle 16 is further included. The buckle 16 is arranged on the crossbow arm 7 , and the buckle 16 is used to fix the end of the traction rope 9 away from the high-pressure gas cylinder 2 .

[0046] The technical effect achieved by this embodiment is as follows: by providing the tripod 11, the entire device can be erected on the ground for use; by providing the buckle 16, the traction rope 9 can be quickly fixed, which is convenient for on-site assembly and launching.

[0047] Example 4

[0048] like Figure 1 and Figure 2 As shown, another portable UAV ground target device provided in this embodiment has a structure including all the contents of Embodiment 1, and only the different parts are described below.

[0049] In this embodiment, the launching mechanism further includes a sight 14, which is disposed on the crossbow arm 7 and is a laser sight.

[0050] In this embodiment, it should be noted that the launching mechanism further includes a level 15 , which is disposed on the crossbow arm 7 and is a bubble level.

[0051] The technical effect achieved by this embodiment is: by setting the aimer 14, it is convenient to aim at the target (such as the edge of a small forest window) and avoid branches, thereby ensuring that the capsule body 1 is successfully launched above the tree crown; by setting the level 15, it is convenient to launch directly below the target, which can increase the accuracy of the launch.

[0052] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

[0053] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A portable UAV ground target device, characterized in that: The invention comprises a capsule mechanism and a launching mechanism, wherein the capsule mechanism comprises a capsule body (1), a support rod (6), a high-pressure gas cylinder (2) and a traction rope (9), wherein the top end of the support rod (6) is connected to the bottom end of the capsule body (1), the high-pressure gas cylinder (2) is arranged in the capsule body (1), the exhaust port of the high-pressure gas cylinder (2) is communicated with the internal cavity of the capsule body (1), the internal cavity of the capsule body (1) is provided with a marking pigment, and one end of the traction rope (9) is connected to the exhaust switch of the high-pressure gas cylinder (2); The launching mechanism comprises a crossbow arm (7), a crossbow (12), a bowstring (13) and a trigger mechanism (10); the crossbow (12) is mounted on the crossbow arm (7); two ends of the bowstring (13) are respectively connected to two ends of the crossbow (12); the crossbow arm (7) is provided with a guide groove (8) along its length direction; the guide groove (8) is used to accommodate the support rod (6); the trigger mechanism (10) is arranged on the crossbow arm (7); and one end of the traction rope (9) facing away from the high-pressure gas cylinder (2) is connected to the crossbow arm (7).

2. A portable UAV ground target device according to claim 1, characterized in that: The capsule body (1) comprises a guide end (3) and a main tube (5); the guide end (3) is conical, the bottom end of the guide end (3) is connected to the top end of the main tube (5), and the marking pigment is arranged in the main tube (5).

3. A portable UAV ground target device according to claim 2, characterized in that: An explosion guide line (4) is provided at the connection between the guide end (3) and the main tube (5), and after the capsule body (1) is inflated, it can explode along the explosion guide line (4) and spray out the marking pigment.

4. A portable UAV ground target device according to claim 1, characterized in that: The support rod (6) is threadedly connected to the capsule body (1).

5. A portable UAV ground target device according to claim 4, characterized in that: The support rod (6) is hollow inside, and a section of the traction rope (9) close to the high-pressure gas cylinder (2) is arranged along the hollow channel inside the support rod (6).

6. A portable UAV ground target device according to claim 1, characterized in that: A tail wing (17) is provided at the bottom end of the support rod (6).

7. A portable UAV ground target device according to claim 1, characterized in that: The launching mechanism further comprises a tripod (11), and the tripod (11) is arranged at the bottom end of the crossbow arm (7).

8. A portable UAV ground target device according to claim 7, characterized in that: The launching mechanism further comprises a level (15), and the level (15) is arranged on the crossbow arm (7).

9. A portable UAV ground target device according to claim 1, characterized in that: The launching mechanism further comprises a sight (14), and the sight (14) is arranged on the crossbow arm (7).

10. A portable UAV ground target device according to claim 1, characterized in that: It also comprises a buckle (16), wherein the buckle (16) is arranged on the crossbow arm (7), and the buckle (16) is used to fix the end of the traction rope (9) away from the high-pressure gas cylinder (2).

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