A small drone-based infrared image acquisition device for fixed-point orbiting.

By designing a small drone-based infrared image acquisition device that orbits at a fixed point, and using an infrared image acquisition device and a photometric sensor to inspect aerospace composite material products, the problem of difficult-to-detect structural defects has been solved, and safe inspection and equipment protection have been achieved.

CN116788539BActive Publication Date: 2025-10-31CIVIL AVIATION FLIGHT UNIV OF CHINA
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Patent Information

Application Number
CN202310995036.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-08
Publication Date
2025-10-31
Estimated Expiration
2043-08-08

AI Technical Summary

Technical Problem

Existing aerospace composite material products have structural defects that are difficult to detect, leading to safety hazards.

Method used

Design a small UAV for fixed-point orbiting infrared image acquisition device, including a main structure, a buffer structure, an installation structure, a protective structure and an acquisition structure. Utilize an infrared image acquisition device for non-destructive testing, and combine photometric sensing and supplementary illumination to detect structural defects in the aircraft.

Benefits of technology

It enables non-destructive testing of aerospace composite materials products, timely detection of structural defects, prevention of safety accidents, and protection of equipment by a dustproof base plate during landing.

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Abstract

This invention discloses a small unmanned aerial vehicle (UAV) for fixed-point orbiting infrared image acquisition, relating to the field of UAV technology. The invention includes a main structure, a buffer structure, a first mounting structure, a second mounting structure, a protective structure, and an acquisition structure. The main structure includes a driver and wings, with one end of each wing connected to the outer surface of the driver. The buffer structure includes an upper fixed support rod and a lower fixed support rod. The upper surface of the upper fixed support rod is connected to the lower surface of the driver, and the lower fixed support rod is positioned below the upper fixed support rod. This invention utilizes the driver to drive the propeller, causing the device to rise. The UAV then orbits the aircraft to be inspected, while an infrared image acquisition device collects and captures the inspection information of the aircraft. Subsequently, information fusion and image enhancement processing are performed on the infrared imaging data to detect structural defects in the aircraft, ensuring flight safety.
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Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) technology, and in particular relates to an infrared image acquisition device for fixed-point orbiting of a small UAV. Background Technology

[0002] With the rapid development of my country's aviation industry and the ever-advancing science and technology, the superior performance of new high-performance composite materials has been fully verified and widely recognized, playing an increasingly important role in the aviation field. However, due to the special characteristics of aviation composite materials and their structures and products, the existence of any quality defects or hidden dangers will lead to a corresponding increase in maintenance costs.

[0003] Therefore, it is particularly important to explore and find various methods and technologies to conduct non-destructive testing on materials, processes and structural damage related to the design, manufacturing and service of aerospace composite materials and structures. This is crucial for preventing accidents and ensuring the safe operation of civil aircraft. To this end, we propose a small UAV-based fixed-point orbiting infrared image acquisition device. Summary of the Invention

[0004] The purpose of this invention is to provide a small unmanned aerial vehicle (UAV) for fixed-point orbiting infrared image acquisition, which solves the problem that existing aerospace composite material products have structural defects that are difficult to detect, thus leading to safety hazards.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a small unmanned aerial vehicle (UAV) for fixed-point orbiting infrared image acquisition, comprising a main structure, a buffer structure, a first mounting structure, a second mounting structure, a protective structure, and an acquisition structure. The main structure includes a driver and wings, with one end of each wing connected to the outer surface of the driver. The buffer structure includes an upper fixed frame and a lower fixed frame. The upper surface of the upper fixed frame is connected to the lower surface of the driver, and the lower fixed frame is positioned below the upper fixed frame. The first mounting structure includes a humidity sensor, with one side of the humidity sensor connected to one side of the upper fixed frame. The second mounting structure includes an energized rod and a photometric sensor. Both ends of the energized rod are connected to the two sides of the lower fixed frame, and one side of the photometric sensor is connected to one side of the energized rod. The protective structure includes a grooved rod, with its upper surface connected to the lower surface of the lower fixed frame. The acquisition structure includes an infrared image collector and a fixed shaft. The infrared image collector is located inside the lower fixed frame, and one end of the fixed shaft is connected to one side of the infrared image collector.

[0007] Preferably, the main structure further includes a propeller, the outer surface of which is connected to the other end of the wing.

[0008] Preferably, the buffer structure further includes buffer springs, one end of each of the buffer springs is connected to the lower surface of the upper fixed frame rod, and the other end of each of the buffer springs is connected to the upper surface of the lower fixed frame rod.

[0009] Preferably, the first mounting structure further includes a fixing plate, a cylinder, and a baffle. One side surface of the fixing plate is connected to one side surface of the upper fixing rod, and one end of each of the cylinders is connected to the other side surface of the fixing plate. One end of each cylinder is provided with a cylinder shaft, and one side surface of the baffle is connected to one end of the cylinder shaft.

[0010] Preferably, the second mounting structure further includes a power block, connecting wires, and lighting tubes. One surface of the power block is connected to one surface of the power-on pole, one end of each of the lighting tubes is connected to one surface of the power-on pole, and both ends of the connecting wire are connected to one surface of the power block and one surface of the power-on pole, respectively.

[0011] Preferably, the protective structure further includes a T-shaped rod and a dustproof base plate. One side surface of the rod is provided with a T-shaped groove, one end of the T-shaped rod passes through the T-shaped groove and slides with the rod, and the upper surface of the dustproof base plate is connected to the lower surface of the T-shaped rod.

[0012] Preferably, the acquisition structure further includes an adapter cylinder, a motor, and a connecting shaft. One surface of the adapter cylinder is connected to one inner surface of the lower fixed frame rod, and the other surface of the adapter cylinder has an opening. One end of the fixed shaft passes through the opening and is rotatably engaged with the adapter cylinder. One end of the motor is connected to one surface of the lower fixed frame rod, and one surface of the lower fixed frame rod has a through hole. One end of the motor has a main shaft, which passes through the through hole and is connected to one end of the connecting shaft. The other end of the connecting shaft is connected to one surface of the infrared image acquisition device.

[0013] The present invention has the following beneficial effects:

[0014] 1. This invention utilizes a driver to drive a propeller to raise the device, and then uses a drone to circle the aircraft to be inspected. At this time, an infrared image acquisition device is used to collect and capture the inspection information of the aircraft to be inspected. Then, by performing information fusion and image enhancement on the infrared imaging data, the structural defects of the aircraft can be detected, and the aircraft malfunctions can be detected in a timely manner to prevent problems before they occur.

[0015] 2. After the UAV completes data collection, the UAV lands on the ground. The rotating propellers will stir up dust. By utilizing the property that one end of the T-shaped rod passes through the T-shaped slot and slides with the slotted rod, it is easy to install the dustproof base plate, and thus the dustproof base plate can be used to prevent dust.

[0016] 3. This invention protects the infrared image acquisition device when the drone lands on the ground by setting a buffer spring.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the external overall structure of a small unmanned aerial vehicle (UAV) infrared image acquisition device for fixed-point orbiting according to the present invention.

[0020] Figure 2 This is a first-view structural diagram of a small unmanned aerial vehicle (UAV) fixed-point orbiting infrared image acquisition device according to the present invention.

[0021] Figure 3 This is a second-view structural diagram of a small unmanned aerial vehicle (UAV) fixed-point orbiting infrared image acquisition device according to the present invention.

[0022] Figure 4 This is a third-view structural diagram of a small unmanned aerial vehicle (UAV) fixed-point orbiting infrared image acquisition device according to the present invention.

[0023] Figure 5 This is a schematic diagram of the buffer structure and the first mounting structure of a small unmanned aerial vehicle (UAV) fixed-point orbiting infrared image acquisition device according to the present invention.

[0024] Figure 6 For the present invention Figure 3 Enlarged view of a portion of point A in the middle;

[0025] Figure 7 For the present invention Figure 4 Enlarged view of a section at point B in the middle;

[0026] Figure 8 For the present invention Figure 4 Enlarged view of a section at point C.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 100. Main structure; 110. Driver; 120. Wing; 130. Propeller; 200. Buffer structure; 210. Upper fixed frame rod; 220. Lower fixed frame rod; 230. Buffer spring; 300. First mounting structure; 310. Humidity sensor; 320. Fixing plate; 330. Cylinder; 340. Baffle; 400. Second mounting structure; 410. Power rod; 420. Photometric sensor; 430. Power supply block; 440. Connecting wire; 450. Lighting tube; 500. Protective structure; 510. Groove rod; 520. T-shaped rod; 530. Dustproof base plate; 600. Acquisition structure; 610. Infrared image acquisition device; 620. Fixed shaft; 630. Adaptor shaft sleeve; 640. Motor; 650. Connecting shaft. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0031] Please see Figure 1-8This invention relates to a small unmanned aerial vehicle (UAV) for fixed-point orbiting infrared image acquisition, comprising a main structure 100, a buffer structure 200, a first mounting structure 300, a second mounting structure 400, a protective structure 500, and an acquisition structure 600. The main structure 100 includes a driver 110 and wings 120, with one end of each wing 120 connected to the outer surface of the driver 110. The buffer structure 200 includes an upper fixed support rod 210 and a lower fixed support rod 220. The upper surface of the upper fixed support rod 210 is connected to the lower surface of the driver 110, and the lower fixed support rod 220 is positioned below the upper fixed support rod 210. The first mounting structure 300 includes a humidity sensor 310. One side surface of the sensing device 310 is connected to one side surface of the upper fixed bracket 210. The second mounting structure 400 includes a power-conducting rod 410 and a photometric sensing device 420. Both ends of the power-conducting rod 410 are connected to the two sides of the lower fixed bracket 220, and one side surface of the photometric sensing device 420 is connected to one side surface of the power-conducting rod 410. The protective structure 500 includes a grooved rod 510. The upper surface of the grooved rod 510 is connected to the lower surface of the lower fixed bracket 220. The acquisition structure 600 includes an infrared image acquisition device 610 and a fixed shaft 620. The infrared image acquisition device 610 is disposed inside the lower fixed bracket 220, and one end of the fixed shaft 620 is connected to one side surface of the infrared image acquisition device 610.

[0032] Furthermore, the main structure 100 also includes a propeller 130, the outer surface of which is connected to the other end of the wing 120.

[0033] Furthermore, the buffer structure 200 also includes buffer springs 230, one end of each of the buffer springs 230 is connected to the lower surface of the upper fixed frame rod 210, and the other end of each of the buffer springs 230 is connected to the upper surface of the lower fixed frame rod 220.

[0034] Furthermore, the first mounting structure 300 also includes a fixing plate 320, a cylinder 330, and a baffle 340. One side surface of the fixing plate 320 is connected to one side surface of the upper fixing rod 210. One end of each of the cylinders 330 is connected to the other side surface of the fixing plate 320. One end of the cylinder 330 is provided with a cylinder shaft, and one side surface of the baffle 340 is connected to one end of the cylinder shaft.

[0035] Furthermore, the second mounting structure 400 also includes a power supply block 430, a connecting wire 440, and a lighting tube 450. One side surface of the power supply block 430 is connected to one side surface of the power supply rod 410, one end of each of the lighting tubes 450 is connected to one side surface of the power supply rod 410, and both ends of the connecting wire 440 are connected to one side surface of the power supply block 430 and one side surface of the power supply rod 410, respectively.

[0036] Furthermore, the protective structure 500 also includes a T-shaped rod 520 and a dustproof base plate 530. A T-shaped groove is provided on one side surface of the groove rod 510. One end of the T-shaped rod 520 passes through the T-shaped groove and slides in cooperation with the groove rod 510. The upper surface of the dustproof base plate 530 is connected to the lower surface of the T-shaped rod 520.

[0037] Furthermore, the acquisition structure 600 also includes an adapter cylinder 630, a motor 640, and a connecting shaft 650. One side surface of the adapter cylinder 630 is connected to one side surface inside the lower fixed support rod 220. The other side surface of the adapter cylinder 630 is provided with an opening. One end of the fixed shaft 620 passes through the opening and rotates with the adapter cylinder 630. One end of the motor 640 is connected to one side surface of the lower fixed support rod 220. One side surface of the lower fixed support rod 220 is provided with a through hole. One end of the motor 640 is provided with a spindle. One end of the spindle passes through the through hole and connects to one end of the connecting shaft 650. The other end of the connecting shaft 650 is connected to one side surface of the infrared image acquisition device 610.

[0038] The working principle of this invention is as follows:

[0039] Please see Figure 1-8 This invention relates to a small-scale unmanned aerial vehicle (UAV) for fixed-point orbiting infrared image acquisition. Its usage is as follows: During operation, the driver 110 drives the propeller 130 to ascend the device, which then orbits the aircraft to be inspected. During this time, the infrared image acquisition unit 610 collects and captures the detection information of the aircraft. Subsequently, information fusion and image enhancement are performed on the infrared imaging data to detect structural defects in the aircraft. During the image acquisition process using the infrared image acquisition unit 610, the light intensity sensor 420 further analyzes the light levels. Analysis shows that when the light is poor, the photometric sensor 420 sends a command to the power supply block 430, which then supplies power to the lighting tube 450 via the connecting cable 440. The lighting tube 450 is then used to provide supplementary lighting. After the UAV has finished collecting data, it lands on the ground, and the propeller 130 rotates, stirring up dust. The T-shaped rod 520, with one end passing through the T-shaped slot and slidingly engaging with the slotted rod 510, facilitates the installation of the dustproof base plate 530, which then serves as a dustproof device.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A small unmanned aerial vehicle (UAV) for fixed-point orbiting infrared image acquisition, characterized in that: The system includes a main structure (100), a buffer structure (200), a first mounting structure (300), a second mounting structure (400), a protective structure (500), and a data acquisition structure (600). The main structure (100) includes a driver (110) and wings (120), with one end of each wing (120) connected to the outer surface of the driver (110). The buffer structure (200) includes an upper fixed support rod (210) and a lower fixed support rod (220). The upper surface of the upper fixed support rod (210) is connected to the lower surface of the driver (110), and the lower fixed support rod (220) is located below the upper fixed support rod (210). The first mounting structure (300) includes a humidity sensor (310), with one side surface of the humidity sensor (310) connected to the lower surface of the driver (110). The upper fixed support rod (210) is connected to one side surface. The second mounting structure (400) includes an energized rod (410) and a photometric sensor (420). The two ends of the energized rod (410) are respectively connected to the two sides of the lower fixed support rod (220). One side surface of the photometric sensor (420) is connected to one side surface of the energized rod (410). The protective structure (500) includes a grooved rod (510). The upper surface of the grooved rod (510) is connected to the lower surface of the lower fixed support rod (220). The acquisition structure (600) includes an infrared image acquisition device (610) and a fixed shaft (620). The infrared image acquisition device (610) is disposed inside the lower fixed support rod (220). One end of the fixed shaft (620) is connected to one side surface of the infrared image acquisition device (610). The buffer structure (200) also includes buffer springs (230), one end of each of the buffer springs (230) is connected to the lower surface of the upper fixed frame rod (210), and the other end of each of the buffer springs (230) is connected to the upper surface of the lower fixed frame rod (220); The first mounting structure (300) further includes a fixing plate (320), a cylinder (330) and a baffle (340). One side surface of the fixing plate (320) is connected to one side surface of the upper fixing rod (210). One end of each of the cylinders (330) is connected to the other side surface of the fixing plate (320). One end of each cylinder (330) is provided with a cylinder shaft. One side surface of the baffle (340) is connected to one end of the cylinder shaft. The second mounting structure (400) also includes a power block (430), a connecting wire (440), and a lighting tube (450). One side surface of the power block (430) is connected to one side surface of the power supply rod (410), one end of each of the lighting tubes (450) is connected to one side surface of the power supply rod (410), and both ends of the connecting wire (440) are connected to one side surface of the power block (430) and one side surface of the power supply rod (410), respectively. The protective structure (500) also includes a T-shaped rod (520) and a dustproof base plate (530). A T-shaped groove is provided on one side surface of the groove rod (510). One end of the T-shaped rod (520) passes through the T-shaped groove and slides with the groove rod (510). The upper surface of the dustproof base plate (530) is connected to the lower surface of the T-shaped rod (520). The acquisition structure (600) also includes an adapter cylinder (630), a motor (640), and a connecting shaft (650). One side surface of the adapter cylinder (630) is connected to one side surface of the lower fixed frame rod (220). The other side surface of the adapter cylinder (630) is provided with an opening. One end of the fixed shaft (620) passes through the opening and rotates with the adapter cylinder (630). One end of the motor (640) is connected to one side surface of the lower fixed frame rod (220). One side surface of the lower fixed frame rod (220) is provided with a through hole. One end of the motor (640) is provided with a main shaft. One end of the main shaft passes through the through hole and is connected to one end of the connecting shaft (650). The other end of the connecting shaft (650) is connected to one side surface of the infrared image acquisition device (610).

2. The infrared image acquisition device for fixed-point orbiting of a small unmanned aerial vehicle according to claim 1, characterized in that: The main structure (100) also includes a propeller (130), the outer surface of which is connected to the other end of the wing (120).

Citation Information

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