Multispectral image extraction device

Abstract

The utility model provides a multispectral image extraction device which comprises an unmanned aerial vehicle, two cross rods are arranged at the bottom of the unmanned aerial vehicle, two connecting rods are fixedly connected to the upper portions of the outer surfaces of the cross rods, a carrier plate is arranged on the lower side of the unmanned aerial vehicle, the carrier plate is fixedly connected with the cross rods through connecting pieces, a rectangular opening is formed in the upper surface of the carrier plate, and the cross rods are fixedly connected with the rectangular opening. The upper side of the rectangular opening is provided with a multispectral camera, the surface of the multispectral camera is fixedly connected with two connecting plates attached to the carrier plate, the upper surface of each connecting plate is provided with two small holes, the area, covered by the connecting plates, of the carrier plate is provided with two round holes aligned with the small holes, and the lower surface of the carrier plate is symmetrically and fixedly provided with two L-shaped plates; two through holes aligned with the round holes are formed in the upper surface of the horizontal portion of the L-shaped plate, bolts are inserted into the small holes, and one end of each bolt sequentially penetrates through the corresponding round hole and the corresponding through hole and is in threaded connection with a nut.

Description

Technical Field

[0001] This invention relates to a multispectral image extraction device, belonging to the field of image extraction technology. Background Technology

[0002] Remote sensing imagery typically involves extracting initial images using a multispectral camera, which is then used in conjunction with a drone to extract images from different locations. Two remote sensing images of the same area, taken from different angles, can reveal important regions, and under certain conditions, a stereoscopic image can be seen using specialized instruments or even with the naked eye. The multispectral camera is mounted on the bottom of the drone, allowing it to extract images at high altitudes during flight. Multispectral cameras are usually bolted to the drone, and these bolts are generally exposed. When the bolts become corroded or cannot be disassembled using conventional tools, it can affect the complete separation of the multispectral camera from the drone; in other words, removing corroded bolts can damage either the drone or the multispectral camera. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multispectral image extraction device to solve the problems mentioned in the background technology. This utility model facilitates the complete separation of the multispectral camera and the UAV.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multispectral image extraction device, comprising a drone, with two crossbars at the bottom of the drone, two connecting rods fixedly connected to the upper part of the outer surface of the crossbars, the connecting rods being fixedly connected to the drone, a carrier plate on the lower side of the drone, the carrier plate being fixedly connected to the crossbars via connectors, a rectangular opening on the upper surface of the carrier plate, a multispectral camera on the upper side of the rectangular opening, two connecting plates fixedly connected to the surface of the multispectral camera and fitting against the carrier plate, two small holes on the upper surface of the connecting plates, two circular holes aligned with the small holes on the area of ​​the carrier plate covered by the connecting plates, two L-shaped plates symmetrically fixed on the lower surface of the carrier plate, two through holes aligned with the circular holes on the upper surface of the horizontal part of the L-shaped plates, bolts inserted into the small holes, one end of the bolts passing through the circular holes and the through holes and threadedly connected to a nut, the nut being located on the lower side of the horizontal part of the L-shaped plates, a gap existing between the horizontal part of the L-shaped plates and the carrier plate, and a clamping component installed between the multispectral camera and the drone.

[0005] Furthermore, the connector includes a sleeve, and each of the two crossbars is fitted with a sleeve that is connected and fixed to the crossbar. A support rod is connected and fixed to the outer surface of the sleeve, and the upper end of the support rod is connected and fixed to the carrier plate.

[0006] Furthermore, the pressing component includes a straight cylinder, which is installed at the middle of the upper surface of the multispectral camera. The lower end of the straight cylinder is open, and a guide hole is provided at the middle of the upper surface of the straight cylinder. A push rod is inserted into the guide hole, and the upper end of the push rod is inserted into a blind hole. The bottom of the UAV is concave upward to form a blind hole. A pressure plate is connected and fixed to the lower end of the push rod. The pressure plate is slidably installed in the straight cylinder, and a vertically arranged spring is provided on the lower side of the pressure plate.

[0007] Furthermore, a connecting ring is fitted onto the lower end of the straight cylinder and fixed to the straight cylinder. The connecting ring is fixed to the multispectral camera by multiple screws.

[0008] Furthermore, a frustum is fixedly connected to the middle of the upper surface of the multispectral camera. The diameter of the frustum is the same as the outer diameter of the connecting ring, and the screw passes through the connecting ring and is threadedly connected to the frustum.

[0009] Furthermore, both ends of the crossbar are fitted with rubber sleeves, one end of which is closed.

[0010] The beneficial effects of this utility model are:

[0011] 1. When mounting the multispectral camera on the carrier plate using bolts and nuts, pass one end of the bolt through the small hole, round hole, and through hole in sequence, and then tighten the nut to complete the assembly of the multispectral camera and the carrier plate. At this time, the bolt is exposed in the part between the carrier plate and the horizontal part of the L-shaped plate. When the bolt and nut cannot be separated normally due to rust, use the gap between the L-shaped plate and the carrier plate to cut the bolt, so that the multispectral camera and the UAV can be separated without damage.

[0012] 2. After the multispectral camera and the drone are assembled, the upper end of the push rod is inserted into the blind hole at the bottom of the drone. At this time, the spring is in a compressed state. Under the action of the spring's rebound force, the drone and the multispectral camera tend to move in opposite directions. When the nut and bolt separate, it plays a role in limiting the relative position of the multispectral camera, the carrier plate and the drone, and preventing the multispectral camera from falling off if the nut falls off. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a multispectral image extraction device according to the present invention;

[0015] Figure 2 This is an enlarged view of point A in the multispectral image extraction device of this utility model;

[0016] Figure 3This is a three-dimensional view of the carrier plate in the multispectral image extraction device of this utility model;

[0017] Figure 4 This is an assembly diagram of the L-shaped plate, bolts, nuts and carrier plate in a multispectral image extraction device of this utility model;

[0018] Figure 5 This is an assembly diagram of the top rod, straight cylinder, spring and multispectral camera in a multispectral image extraction device of this utility model;

[0019] In the diagram: 1-UAV, 2-Multispectral camera, 3-Carrier plate, 4-Crossbar, 5-Connecting rod, 6-Rubber sleeve, 7-Connecting plate, 8-Bolt, 9-Support rod, 10-Tube sleeve, 11-Round hole, 12-Rectangular opening, 13-L-shaped plate, 14-Through hole, 15-Nut, 16-Frustum, 17-Screw, 18-Spring, 19-Pressure plate, 20-Top rod, 21-Straight cylinder, 22-Connecting ring. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figure 1 This utility model provides a technical solution: a multispectral image extraction device, including a drone 1. The drone 1 has two crossbars 4 at its bottom. Two connecting rods 5 are fixedly connected to the upper part of the outer surface of the crossbars 4. The connecting rods 5 are fixedly connected to the drone 1. The structure formed by the crossbars 4 and the connecting rods 5 provides support for the drone 1. Both ends of the crossbars 4 are fitted with rubber sleeves 6. One end of the rubber sleeve 6 is closed. The rubber sleeve 6 serves to protect the crossbars 4.

[0022] See Figure 1 , Figure 2 and Figure 3 The UAV 1 has a carrier plate 3 on its lower side. Each of the two crossbars 4 is fitted with a sleeve 10 that is connected and fixed to the crossbar 4. A support rod 9 is connected and fixed to the outer surface of the sleeve 10. The upper end of the support rod 9 is connected and fixed to the carrier plate 3. The support rod 9 and the sleeve 10 connect the carrier plate 3 and the crossbar 4, so that the position of the carrier plate 3 remains unchanged. A rectangular opening 12 is opened on the upper surface of the carrier plate 3, so that the lens of the multispectral camera 2 faces the rectangular opening 12, thus not affecting the use of the multispectral camera 2.

[0023] See Figure 1 , Figure 3 and Figure 4A multispectral camera 2 is mounted on the upper side of the rectangular opening 12. Two connecting plates 7, which are in contact with the carrier plate 3, are fixedly connected to the surface of the multispectral camera 2. Two small holes are opened on the upper surface of the connecting plates 7. Two circular holes 11, which are aligned with the small holes, are opened in the area of ​​the carrier plate 3 covered by the connecting plates 7. Two L-shaped plates 13 are symmetrically fixed on the lower surface of the carrier plate 3. Two through holes 14, which are aligned with the circular holes 11, are opened on the upper surface of the horizontal part of the L-shaped plates 13. Bolts 8 are inserted into the small holes. One end of the bolts 8 passes through the circular holes 11 and the through holes 14 in sequence and is threaded to a nut 15. The nut 15 is located on the lower side of the horizontal part of the L-shaped plates 13. There is a gap between the horizontal part of the L-shaped plate 13 and the carrier plate 3. When the multispectral camera 2 is installed on the carrier plate 3 by using the bolt 8 and nut 15, one end of the bolt 8 passes through the small hole, the round hole 11 and the through hole 14 in sequence and then the nut 15 is screwed on to complete the assembly of the multispectral camera 2 and the carrier plate 3. At this time, the part of the bolt 8 between the carrier plate 3 and the horizontal part of the L-shaped plate 13 is exposed. When the bolt 8 and nut 15 cannot be separated normally due to corrosion, the bolt 8 is cut off by using the gap between the L-shaped plate 13 and the carrier plate 3, so that the multispectral camera 2 and the drone 1 can be separated without damage.

[0024] See Figure 1 and Figure 5 A straight cylinder 21 is installed in the middle of the upper surface of the multispectral camera 2. The lower end of the straight cylinder 21 is open. A guide hole is opened in the middle of the upper surface of the straight cylinder 21. A push rod 20 is inserted in the guide hole. The upper end of the push rod 20 is inserted into a blind hole. The bottom of the drone 1 is concave upward to form a blind hole. The lower end of the push rod 20 is connected to and fixed to a pressure plate 19. The pressure plate 19 is slidably installed in the straight cylinder 21. A vertically arranged spring 18 is provided on the lower side of the pressure plate 19. After the multispectral camera 2 and the drone 1 are assembled, the upper end of the push rod 20 is inserted into the blind hole at the bottom of the drone 1. At this time, the spring 18 is in a compressed state. Under the action of the spring 18, the drone 1 and the multispectral camera 2 tend to move in opposite directions. When the nut 15 is separated from the bolt 8, it plays a role in restricting the relative position of the multispectral camera 2, the carrier plate 3 and the drone 1, and preventing the multispectral camera 2 from falling when the nut 15 falls off.

[0025] See Figure 5 The lower end of the straight cylinder 21 is fitted with a connecting ring 22 that is fixed to the straight cylinder 21. A frustum 16 is fixed to the middle of the upper surface of the multispectral camera 2. The diameter of the frustum 16 is the same as the outer diameter of the connecting ring 22. The screw 17 passes through the connecting ring 22 and is threaded to the frustum 16. The design of the frustum 16 increases the thickness of the part where the screw 17 is mounted on the multispectral camera 2.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multispectral imagery extraction device comprising a drone (1), characterized in that: The drone (1) has two crossbars (4) at its bottom. Two connecting rods (5) are fixedly connected to the upper part of the outer surface of the crossbars (4). The connecting rods (5) are fixedly connected to the drone (1). The drone (1) has a carrier plate (3) on its lower side. The carrier plate (3) is fixedly connected to the crossbars (4) through connectors. The upper surface of the carrier plate (3) has a rectangular opening (12). A multispectral camera (2) is provided on the upper side of the rectangular opening (12). The surface of the multispectral camera (2) is fixedly connected to two connecting plates (7) that fit against the carrier plate (3). The upper surface of the connecting plates (7) has two small holes. The carrier plate (3) is supported by the connecting plates (7). 7) Two round holes (11) aligned with the small holes are opened in the covered area. Two L-shaped plates (13) are symmetrically fixed on the lower surface of the carrier plate (3). Two through holes (14) aligned with the round holes (11) are opened on the upper surface of the horizontal part of the L-shaped plate (13). A bolt (8) is inserted in the small hole. One end of the bolt (8) passes through the round hole (11) and the through hole (14) in sequence and is threaded to a nut (15). The nut (15) is set on the lower side of the horizontal part of the L-shaped plate (13). There is a gap between the horizontal part of the L-shaped plate (13) and the carrier plate (3). A pressure member is installed between the multispectral camera (2) and the UAV (1).

2. The multispectral image extraction device of claim 1, wherein: The connector includes a sleeve (10), and each of the two crossbars (4) is fitted with a sleeve (10) that is connected and fixed to the crossbar (4). A support rod (9) is connected and fixed to the outer surface of the sleeve (10), and the upper end of the support rod (9) is connected and fixed to the carrier plate (3).

3. The multispectral image extraction device of claim 1, wherein: The holding component includes a straight cylinder (21). The straight cylinder (21) is installed at the middle position of the upper surface of the multispectral camera (2). The lower end of the straight cylinder (21) is open. A guide hole is opened at the middle position of the upper surface of the straight cylinder (21). A top rod (20) is inserted into the guide hole. The upper end of the top rod (20) is inserted into a blind hole. The bottom of the drone (1) is recessed upward to form a blind hole. A pressure plate (19) is connected and fixed at the lower end of the top rod (20). The pressure plate (19) is slidably installed in the straight cylinder (21). A vertically arranged spring (18) is provided on the lower side of the pressure plate (19).

4. The multispectral image extraction device of claim 3, wherein: The lower end of the straight cylinder (21) is fitted with a connecting ring (22) that is fixed to the straight cylinder (21). The connecting ring (22) is fixed to the multispectral camera (2) by multiple screws (17).

5. The multispectral image extraction device according to claim 4, characterized in that: A frustum (16) is fixedly connected to the middle of the upper surface of the multispectral camera (2). The diameter of the frustum (16) is the same as the outer diameter of the connecting ring (22). The screw (17) passes through the connecting ring (22) and is threadedly connected to the frustum (16).

6. The multispectral image extraction device of claim 1, wherein: Both ends of the crossbar (4) are fitted with rubber sleeves (6), and one end of the rubber sleeve (6) is closed.

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