Ultraviolet detection unmanned aerial vehicle image recognition device

Abstract

This utility model discloses an image recognition device for ultraviolet (UV) detection of unmanned aerial vehicles (UAVs), relating to the field of UAV detection technology. It includes a UAV body and a UV imaging device fixedly installed at the bottom of the UAV body. The UV imaging device includes a housing, a protective frame movably disposed within the housing, an imager fixedly disposed within the protective frame, and a mounting plate fixedly connected to the top surface of the protective frame. The upper surface of the mounting plate is movably connected to the inner top wall of the housing via an adjustment component. A locking arm for fixing the protective frame is rotatably disposed within the housing. This utility model utilizes a steel protective frame and magnets to form a magnetic damping stabilization structure. When the UAV generates high-frequency vibrations, the magnets can effectively slow down the swing speed of the protective frame, helping the imager quickly return to a stable state, significantly reducing the impact of vibration on image clarity, and solving the technical pain point of inaccurate imaging in existing devices.

Description

Technical Field

[0001] This utility model relates to the field of drone detection technology, specifically to an image recognition device for ultraviolet detection drones. Background Technology

[0002] With its natural anti-interference characteristics in the solar-blind ultraviolet band, ultraviolet detection technology has become a core tool in fields such as partial discharge detection of power equipment and early warning of pipeline leaks. In particular, when combined with drones, it can overcome the terrain limitations and safety risks of manual inspections, and a single drone can complete the efficient inspection of several kilometers of lines.

[0003] However, existing image recognition devices for ultraviolet (UV) inspection drones still have some drawbacks in practical use: the high-frequency vibrations generated during multi-rotor drone flight are directly transmitted to the imager, causing severe shaking of the imaging device and resulting in blurred and distorted images. Although some devices are equipped with angle adjustment mechanisms, they lack effective vibration buffering and attitude stabilization mechanisms, making it impossible to maintain the stability of the imager when the drone's attitude changes slightly. This results in insufficient image clarity acquired by the UV optical imaging module, severely affecting the accuracy of subsequent identification of features such as partial discharge and corona discharge, and even causing missed or false defects. In addition, the stabilization structure of traditional devices often relies on complex motor-driven gimbals, which not only increases the weight and energy consumption of the equipment but also suffers from lag in adjustment response, making it difficult to meet the stringent requirements of high-altitude inspection.

[0004] To address these issues, we designed an image recognition device for ultraviolet detection drones. Utility Model Content

[0005] The purpose of this invention is to provide an image recognition device for ultraviolet detection drones to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides an image recognition device for an ultraviolet detection drone, comprising a drone body and an ultraviolet imaging device fixedly installed at the bottom of the drone body. The ultraviolet imaging device includes a housing, a protective frame movably disposed within the housing, an imager fixedly disposed within the protective frame, a mounting plate fixedly connected to the top surface of the protective frame, and the upper surface of the mounting plate being movably connected to the inner top wall of the housing via an adjustment component. A locking arm for fixing the protective frame is rotatably disposed within the housing.

[0007] Furthermore, the protective frame is made of steel, and a magnet is fixedly connected to the inner bottom wall of the cover.

[0008] Furthermore, the adjustment assembly includes a fixing frame, which is rotatably mounted on the inner top wall of the cover. A sleeve is fixedly connected to the bottom end of the fixing frame, and a rotating shaft is fixedly sleeved inside the sleeve. Two supporting side plates are symmetrically fixedly connected to the top surface of the mounting plate, and the rotating shaft is rotatably disposed between the two supporting side plates.

[0009] Furthermore, the locking arm includes two support arms, a connecting plate is fixedly disposed between the two support arms, a first limiting block is fixedly disposed on the opposite side of each of the two support arms, and a second limiting block is fixedly connected to the top of the connecting plate on the side near the protective frame.

[0010] Furthermore, a connecting rod is fixedly connected between the two support arms, and the two ends of the connecting rod are respectively rotatably mounted on the inner side wall of the cover.

[0011] Furthermore, a drive motor is provided on one side of the connecting rod, and the drive end of the drive motor is fixedly connected to the connecting rod.

[0012] Furthermore, the support arm is L-shaped.

[0013] Furthermore, a through hole is provided on one side wall of the housing near the imager, and the through hole is adapted to the position and size of the ultraviolet optical imaging module on the imager.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, a magnetic damping stabilization structure is formed by the combination of a steel protective frame and a magnet. When the drone generates high-frequency vibration, the magnet can effectively slow down the swing speed of the protective frame, help the imager quickly return to a stable state, significantly reduce the impact of vibration on image clarity, and solve the technical pain point of inaccurate imaging in existing devices.

[0016] 2. In this utility model, the adjustment component adopts a dual-axis movable connection design, which enables the imager to swing freely in two dimensions. With the constraint of the limit block, it can not only adapt to the slight changes in the attitude of the UAV to achieve adaptive stability, but also control the locking arm to fix the frame through the drive motor to meet the needs of active angle adjustment, thus balancing stability and flexibility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the ultraviolet imaging device of this utility model;

[0019] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the locking arm structure of this utility model.

[0021] In the diagram: 1. UAV body; 2. Ultraviolet imaging device; 3. Housing; 4. Protective frame; 5. Imager; 6. Mounting plate; 7. Adjustment component; 8. Locking arm; 9. Magnet; 10. Fixing frame; 11. Sleeve; 12. Rotating shaft; 13. Support side plate; 14. Support arm; 15. Connecting plate; 16. First limiting block; 17. Second limiting block; 18. Connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution: an image recognition device for an ultraviolet detection drone, including a drone body 1 and an ultraviolet imaging device 2 fixedly installed at the bottom of the drone body 1. The ultraviolet imaging device 2 includes a housing 3, a protective frame 4 movably disposed inside the housing 3, an imager 5 fixedly disposed inside the protective frame 4, a mounting plate 6 fixedly connected to the top surface of the protective frame 4, and the upper surface of the mounting plate 6 being movably connected to the inner top wall of the housing 3 through an adjustment component 7. A locking arm 8 for fixing the protective frame 4 is rotatably disposed inside the housing 3. The protective frame 4 is made of steel, and a magnet 9 is fixedly connected to the inner bottom wall of the housing 3.

[0024] The adjustment assembly 7 includes a fixing frame 10, which is rotatably mounted on the inner top wall of the cover 3. A sleeve 11 is fixedly connected to the bottom end of the fixing frame 10. A rotating shaft 12 is fixedly sleeved inside the sleeve 11. Two supporting side plates 13 are symmetrically fixedly connected to the top surface of the mounting plate 6. The rotating shaft 12 is rotatably positioned between the two supporting side plates 13.

[0025] In practice, the UAV body 1 carries the device and takes off to perform the detection task. When the UAV changes its attitude slightly due to airflow or rotor vibration, the protective frame 4 can swing freely on both axes through the rotation axis 12 of the adjustment component 7 and the fixed frame 10. At this time, the magnet 9 at the bottom of the cover 3 generates gravitational damping on the steel protective frame 4, which reduces its swing amplitude and accelerates stability, ensuring that the ultraviolet optical imaging module of the imager 5 always maintains a relatively horizontal state and avoids image shaking and blurring.

[0026] See Figure 2 and Figure 4The locking arm 8 includes two support arms 14, a connecting plate 15 is fixedly disposed between the two support arms 14, a first limiting block 16 is fixedly disposed on the opposite side of each of the two support arms 14, a second limiting block 17 is fixedly connected to the top of the side of the connecting plate 15 near the protective frame 4, a connecting rod 18 is fixedly connected between the two support arms 14, the two ends of the connecting rod 18 are respectively rotatably mounted on the inner side wall of the cover 3, a drive motor is disposed on one side of the connecting rod 18, the drive end of the drive motor is fixedly connected to the connecting rod 18, and the support arm 14 is L-shaped.

[0027] In practice, when it is necessary to actively adjust the detection field of view of the imager 5, the drive motor on one side of the support side plate 13 is activated. The drive end of the motor drives the connecting rod 18 to rotate, causing the locking arm 8 to rotate around the connecting rod 18. This lowers the locking arm 8 and tightly fits it against the protective frame 4, fixing it inside the housing 3. At this time, the ground operator can adjust the attitude of the UAV body 1 to change the pitch angle of the ultraviolet imaging device 2, thereby achieving precise adjustment of the imaging field of view.

[0028] See Figure 1 and Figure 2 The cover 3 has a through hole on one side wall near the imager 5. The through hole is sized and corresponds to the position of the ultraviolet optical imaging module on the imager 5. The through hole of the cover 3 is precisely aligned with the ultraviolet optical imaging module of the imager 5 to ensure that ultraviolet light enters the imaging system efficiently. With the stable imaging posture, the recognition accuracy of features such as partial discharge is greatly improved, providing reliable image data support for scenarios such as power inspection.

[0029] Working principle:

[0030] The imager 5 installed inside the protective frame 4 can swing freely on two axes through the adjustment component 7. When the drone's attitude changes slightly, the imager 5 tilts in either direction. The protective frame 4 is made of steel, and the magnet 9 located directly below the protective frame 4 can slow down the movement of the protective frame 4 and help it stabilize quickly. It automatically maintains the stability of the imager 5 within a certain angle, avoiding the shaking of the imaging device when the drone, especially the multi-rotor, generates high-frequency vibrations, which would affect the image clarity and make subsequent identification difficult.

[0031] When it is necessary to adjust the angle of the imager 5, the drive motor is started, which drives the connecting rod 18 to rotate, causing the locking arm 8 to rotate around the connecting rod 18, thereby lowering the locking arm 8 to protect the frame 4. At this time, the protective frame 4 is fixed inside the housing 3 and no longer swings freely. Ground operators can remotely adjust the pitch angle of the ultraviolet imaging device 2 by adjusting the attitude of the UAV body 1, thereby adjusting the angle of the imager 5 according to the detection needs and adjusting the field of view.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An image recognition device for unmanned aerial vehicle (UAV) ultraviolet detection, comprising an UAV body (1) and an ultraviolet imaging device (2) fixedly installed at the bottom of the UAV body (1), characterized in that, The ultraviolet imaging device (2) includes a housing (3), a protective frame (4) is movably disposed inside the housing (3), an imager (5) is fixedly disposed inside the protective frame (4), a mounting plate (6) is fixedly connected to the top surface of the protective frame (4), the upper surface of the mounting plate (6) is movably connected to the inner top wall of the housing (3) through an adjustment component (7), and a locking arm (8) for fixing the protective frame (4) is rotatably disposed inside the housing (3).

2. The image recognition device for an ultraviolet detection UAV as described in claim 1, characterized in that, The protective frame (4) is made of steel, and a magnet (9) is fixedly connected to the inner bottom wall of the cover (3).

3. The image recognition device for an ultraviolet detection UAV as described in claim 2, characterized in that, The adjustment assembly (7) includes a fixing frame (10), which is rotatably mounted on the inner top wall of the cover (3). A sleeve (11) is fixedly connected to the bottom end of the fixing frame (10), and a rotating shaft (12) is fixedly sleeved inside the sleeve (11). Two supporting side plates (13) are symmetrically fixedly connected to the top surface of the mounting plate (6), and the rotating shaft (12) is rotatably disposed between the two supporting side plates (13).

4. The image recognition device for an ultraviolet detection UAV as described in claim 3, characterized in that, The locking arm (8) includes two support arms (14), a connecting plate (15) is fixedly provided between the two support arms (14), a first limiting block (16) is fixedly provided on the opposite side of the two support arms (14), and a second limiting block (17) is fixedly connected to the top of the connecting plate (15) near the protective frame (4).

5. The image recognition device for an ultraviolet detection UAV as described in claim 4, characterized in that, A connecting rod (18) is fixedly connected between the two support arms (14), and the two ends of the connecting rod (18) are respectively rotatably mounted on the inner side wall of the cover (3).

6. The image recognition device for an ultraviolet detection UAV as described in claim 5, characterized in that, A drive motor is provided on one side of the connecting rod (18), and the drive end of the drive motor is fixedly connected to the connecting rod (18).

7. The image recognition device for an ultraviolet detection UAV as described in claim 6, characterized in that, The support arm (14) is L-shaped.

8. The image recognition device for an ultraviolet detection UAV as described in claim 7, characterized in that, The cover (3) has a through hole on one side wall near the imager (5), and the through hole is of a size that corresponds to the position of the ultraviolet optical imaging module on the imager (5).

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