A multi-camera spliced low-altitude unmanned aerial vehicle early warning device

Abstract

The utility model discloses a kind of low altitude unmanned aerial vehicle early warning devices of multi-path camera splicing, it includes: wide-angle camera and the fixing seat for its installation, the top of fixing seat one end is provided with two risers of symmetrical distribution, limiting frame is rotatably arranged between two risers, wide-angle camera is embedded in the inside monitoring unmanned aerial vehicle of limiting frame, and, the upper end surface of fixing seat is provided with for supporting the lifting plate of limiting frame, lifting plate is spliced and is composed of fixed plate and extension plate, wherein, fixed plate is rotatably installed in the upper end surface of fixing seat, extension plate is arranged in the inner chamber of fixed plate. The low altitude unmanned aerial vehicle early warning device presented in the application can directly install wide-angle camera in limiting frame, drive limiting frame to overturn by lifting plate, change the inclination angle of wide-angle camera, realize the adjustment of wide-angle camera shooting angle, avoid the trouble of needing repeatedly disassembling and adjusting the angle of fixed support, save time and effort, improve installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drone early warning auxiliary equipment technology, specifically to a low-altitude drone early warning device that uses multiple cameras spliced ​​together. Background Technology

[0002] Multi-camera low-altitude drone early warning technology involves installing wide-angle or fisheye cameras on key locations such as building tops and towers to form an intersecting field of view, collecting video streams over a wide range of low-altitude areas. The images are then subjected to distortion correction, perspective transformation, and multi-video frame stitching to generate a seamless panoramic monitoring image, eliminating blind spots in the field of view of a single camera. At the same time, the stitched video is analyzed in real time to automatically identify drone targets and determine the threat level by combining information such as their movement trajectory and speed. Finally, an early warning is issued through a cloud platform.

[0003] However, existing cameras are typically installed using fixed brackets on building rooftops or towers. The camera's shooting angle is changed by adjusting the bracket's angle. However, this method requires repeated disassembly and adjustment of the bracket to achieve the desired angle, wasting considerable time and impacting installation efficiency. Therefore, there is an urgent need for a low-altitude drone early warning device that uses multi-channel camera stitching. Utility Model Content

[0004] To overcome the aforementioned deficiencies in the prior art, this application provides a low-altitude UAV early warning device with multi-channel camera splicing. A wide-angle camera can be directly installed in a limiting frame. By driving the limiting frame to rotate through a lifting plate, the tilt angle of the wide-angle camera can be changed, thereby adjusting the shooting angle of the wide-angle camera. This avoids the trouble of repeatedly disassembling and adjusting the angle of the fixed bracket, saving time and effort, improving installation efficiency, and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A low-altitude drone early warning device with multiple cameras spliced ​​together includes: a wide-angle camera and a mounting base for mounting it. The top end of the mounting base is provided with two symmetrically distributed upright plates. A limit frame is rotatably set between the two upright plates. The wide-angle camera is embedded inside the limit frame to monitor the drone. The upper surface of the mounting base is provided with a support plate for supporting the limit frame. The support plate is composed of a fixed plate and an extension plate spliced ​​together. The fixed plate is rotatably mounted on the upper surface of the mounting base. The extension plate is located in the inner cavity of the fixed plate. The extension plate can extend out of the fixed plate in a movable manner to drive the limit frame to rotate.

[0007] Preferably, the top of the limiting frame has a slot, the fixing seat is embedded in the slot, and the end of the limiting frame away from the upright plate has an opening that communicates with the slot, through which the lens of the fixing seat monitors the drone.

[0008] Preferably, the fixed plate has a slot inside, the extension plate is inserted into the slot, and the outer walls of the fixed plate have through holes on both sides that communicate with the slot. The outer walls of the through holes are provided with locking bolts, which pass through the through holes and are threaded into the extension plate.

[0009] Preferably, the outer walls of both sides of the limiting frame are provided with a first rotating shaft, the other end of the first rotating shaft is rotatably installed on the side wall of the upright plate, and the limiting frame rotates between the two upright plates through the first rotating shaft.

[0010] Preferably, the outer walls on both sides of the extension plate are evenly provided with a number of threaded grooves, and the locking bolts are threadedly installed inside the threaded grooves.

[0011] Preferably, the upper end face of the fixed base and the lower end face of the limiting frame are respectively provided with two sets of symmetrical internal support plates and support ears. The outer walls of the fixed plate and the extension plate are each provided with a second rotating shaft at the ends that are far apart from each other. The fixed plate and the extension plate are rotatably installed between the two support plates and the two support ears through the second rotating shaft.

[0012] Preferably, each of the four bottom corners of the mounting base is provided with a vertical plate, and each of the vertical plates is provided with a fixing bolt on its outer side. The fixing bolt passes through the vertical plate and is threaded onto the tower.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] By setting a limiting frame on the fixed base, the wide-angle camera can be installed in the limiting frame. By adjusting the length of the lifting plate, the lifting plate can push or pull the limiting frame to flip and tilt on the fixed base, changing the tilt angle of the wide-angle camera and realizing the adjustment of the shooting angle of the wide-angle camera. This avoids the trouble of repeatedly disassembling and adjusting the angle of the fixed bracket, saving time and effort and improving installation efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of a low-altitude unmanned aerial vehicle (UAV) early warning device according to an embodiment of the present invention;

[0017] Figure 2 This is a perspective view of a limiting frame according to an embodiment of the present invention;

[0018] Figure 3 This is a split view of the support plate according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram showing the connection between the fixing plate and the extension plate according to an embodiment of the present invention.

[0020] In the diagram: 1. Wide-angle camera; 2. Mounting base; 21. Vertical plate; 22. Support plate; 23. Vertical plate; 24. Fixing bolt; 3. Limiting frame; 301. Hollow slot; 302. Through opening; 31. Support lug; 32. First pivot; 4. Lifting plate; 41. Fixing plate; 411. Slot; 412. Through hole; 42. Extension plate; 421. Threaded groove; 43. Locking bolt; 44. Second pivot. Detailed Implementation

[0021] Combination Figures 1-4 As shown in this embodiment, a low-altitude drone early warning device with multiple cameras spliced ​​together includes: a wide-angle camera 1 and a mounting base 2 for mounting it. The top end of the mounting base 2 is provided with two symmetrically distributed upright plates 21. A limiting frame 3 is rotatably provided between the two upright plates 21. The wide-angle camera 1 is embedded inside the limiting frame 3 to monitor the drone. The wide-angle camera 1 can be installed in the limiting frame 3. By flipping the limiting frame 3 between the two upright plates 21, the tilt angle of the limiting frame 3 can be changed, thereby adjusting the shooting angle of the wide-angle camera 1.

[0022] In this embodiment, the upper end face of the fixed base 2 is provided with a lifting plate 4 for supporting the limiting frame 3. The lifting plate 4 is composed of a fixed plate 41 and an extension plate 42 spliced ​​together. The fixed plate 41 is rotatably installed on the upper end face of the fixed base 2, and the extension plate 42 is disposed in the inner cavity of the fixed plate 41. The extension plate 42 can extend out of the fixed plate 41 in a movable manner to drive the limiting frame 3 to flip. By sliding the extension plate 42, the length of the extension plate 42 moving out of the fixed plate 41 is adjusted, thereby changing the length of the lifting plate 4. The lifting plate 4 after the length adjustment pushes or pulls one end of the limiting frame 3 to move, so that the other end of the limiting frame 3 flips between the two upright plates 21, thereby realizing the adjustment of the tilt angle of the limiting frame 3. At the same time, the lifting plate 4 is used to support the limiting frame 3 to prevent the limiting frame 3 from shifting after the angle adjustment, thus ensuring the stability of the limiting frame 3 after the angle adjustment.

[0023] In this embodiment, the top of the limiting frame 3 is provided with a slot 301, the fixing seat 2 is embedded in the slot 301, and the end of the limiting frame 3 away from the upright plate 21 is provided with a through-hole 302 that communicates with the slot 301; the wide-angle camera 1 is installed in the slot 301, so that the shooting lens of the wide-angle camera 1 can shoot the surrounding environment from the through-hole 302, which satisfies the acquisition of low-altitude area video.

[0024] In this embodiment, the fixed plate 41 has a slot 411 inside, and the extension plate 42 is inserted into the slot 411. Furthermore, both sides of the outer wall of the fixed plate 41 have through holes 412 that communicate with the slot 411. The outer wall of the through hole 412 is provided with a locking bolt 43, which passes through the through hole 412 and is threaded inside the extension plate 42. By sliding the extension plate 42 in the slot 411, the length of the extension plate 42 extending out of the fixed plate 41 is adjusted, thereby changing the length of the lifting plate 4 and realizing the length adjustment of the lifting plate 4. At the same time, the locking bolt 43 is installed from the through hole 412 and inserted into the threaded groove 421 on the surface of the extension plate 42 to limit the position of the extension plate 42 and ensure the stability of the lifting plate 4 after the length adjustment.

[0025] In this embodiment, the outer walls of both sides of the limiting frame 3 are provided with a first rotating shaft 32. The other end of the first rotating shaft 32 is rotatably installed on the side wall of the upright plate 21, and the limiting frame 3 rotates between the two upright plates 21 through the first rotating shaft 32. The limiting frame 3 is installed between the two upright plates 21 through the first rotating shaft 32 to meet the tilt angle adjustment requirements of the limiting frame 3.

[0026] In this embodiment, the upper end face of the fixed base 2 and the lower end face of the limiting frame 3 are respectively provided with two sets of symmetrical internal support plates 22 and support ears 31. The outer walls of the fixed plate 41 and the extension plate 42 are each provided with a second rotating shaft 44 at the ends that are far apart from each other. The fixed plate 41 and the extension plate 42 are rotatably installed between the two support plates 22 and the two support ears 31 through the second rotating shaft 44, so as to prevent the fixed plate 41 and the extension plate 42 from interfering with the fixed base 2 and the limiting frame 3, and to ensure the operation of the flipping of the limiting frame 3.

[0027] In this embodiment, vertical plates 23 are provided at the four bottom corners of the mounting base 2, and fixing bolts 24 are provided on the outer side of each vertical plate 23. The fixing bolts 24 are threaded through the vertical plates 23 and installed on the tower. The vertical plates 23 are fixed to the tower support by fixing bolts 24, thus realizing the installation of the mounting base 2. There is no need to adjust the installation angle of the mounting base 2, avoiding the trouble of repeatedly disassembling and adjusting the angle of the fixing bracket to meet the shooting angle adjustment.

[0028] The working principle of this utility model is as follows: The low-altitude UAV early warning device with multi-channel camera splicing proposed in this application can install a wide-angle camera 1 in the slot 301 by setting a fixed base 2 and a limiting frame 3, so that the shooting lens of the wide-angle camera 1 can shoot the surrounding environment from the opening 302, which meets the requirements of low-altitude area video acquisition. Then, the extension plate 42 is slid and the length of the extension plate 42 extending out of the fixed plate 41 is adjusted, and the length of the lifting plate 4 is changed. The lifting plate 4 after the length adjustment pushes or pulls one end of the limiting frame 3 to move, so that the other end of the limiting frame 3 flips and tilts between the two upright plates 21, changing the tilt angle of the wide-angle camera 1, realizing the adjustment of the shooting angle of the wide-angle camera 1. This avoids the trouble of repeatedly disassembling and adjusting the angle of the fixed bracket, saving time and effort and improving installation efficiency.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-altitude unmanned aerial vehicle (UAV) early warning device using multi-channel camera stitching, comprising: A wide-angle camera (1) and a mounting base (2) for mounting thereon are characterized in that two upright plates (21) are symmetrically distributed at one top end of the mounting base (2), and a limiting frame (3) is rotatably arranged between the two upright plates (21). The wide-angle camera (1) is embedded in the limiting frame (3) to monitor a drone. Furthermore, a lifting plate (4) for supporting the limiting frame (3) is provided on the upper surface of the mounting base (2). The lifting plate (4) is composed of a fixed plate (41) and an extension plate (42) spliced ​​together. The fixed plate (41) is rotatably mounted on the upper surface of the mounting base (2), and the extension plate (42) is disposed in the inner cavity of the fixed plate (41). Moreover, the extension plate (42) can extend out of the fixed plate (41) in a movable manner to drive the limiting frame (3) to flip.

2. The low-altitude UAV early warning device based on multi-channel camera stitching according to claim 1, characterized in that, The top of the limiting frame (3) is provided with a slot (301), the fixing seat (2) is embedded in the slot (301), and the end of the limiting frame (3) away from the upright plate (21) is provided with a through (302) that communicates with the slot (301). The lens of the fixing seat (2) monitors the drone through the through (302).

3. The low-altitude UAV early warning device with multi-channel camera stitching according to claim 1, characterized in that, The fixed plate (41) has a slot (411) inside, and the extension plate (42) is inserted into the slot (411). The fixed plate (41) has through holes (412) on both sides of its outer wall that communicate with the slot (411). The outer wall of the through hole (412) is provided with a locking bolt (43), which passes through the through hole (412) and is threaded into the extension plate (42).

4. A low-altitude unmanned aerial vehicle (UAV) early warning device based on multi-channel camera stitching according to claim 1, characterized in that, The limiting frame (3) is provided with a first rotating shaft (32) on both outer walls. The other end of the first rotating shaft (32) is rotatably installed on the side wall of the upright plate (21), and the limiting frame (3) rotates between the two upright plates (21) through the first rotating shaft (32).

5. A low-altitude unmanned aerial vehicle (UAV) early warning device with multi-channel camera stitching according to claim 3, characterized in that, The outer walls of both sides of the extension plate (42) are evenly provided with a number of threaded grooves (421), and the locking bolt (43) is threadedly installed inside the threaded grooves (421).

6. A low-altitude unmanned aerial vehicle (UAV) early warning device with multi-channel camera stitching according to claim 1, characterized in that, The upper end face of the fixed base (2) and the lower end face of the limiting frame (3) are respectively provided with two sets of symmetrical internal support plates (22) and support ears (31). The outer walls of the fixed plate (41) and the extension plate (42) are each provided with a second rotating shaft (44) at the ends that are far apart from each other. The fixed plate (41) and the extension plate (42) are respectively rotatably installed between the two support plates (22) and the two support ears (31) through the second rotating shaft (44).

7. A low-altitude unmanned aerial vehicle (UAV) early warning device based on multi-channel camera stitching according to claim 1, characterized in that, The bottom four corners of the fixed base (2) are provided with vertical plates (23), and the outer side of the vertical plates (23) is provided with fixing bolts (24). The fixing bolts (24) are threaded through the vertical plates (23) and installed on the tower.

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