Unmanned aerial vehicle multispectral data acquisition device

Abstract

The utility model discloses unmanned aerial vehicle multispectral data acquisition device, include: acquisition unmanned aerial vehicle is used for carrying integral device movement, fixed upper tube is installed in the bottom end of acquisition unmanned aerial vehicle, and the bottom end fixed mounting has fixed lower tube, the bottom end fixed mounting of fixed lower tube has stable frame, and the top fixed connection of stable frame has rubber pad layer, the installation shell body that installation upper shell and installation lower shell constitute, and the outer wall fixed sleeve of installation shell body has flexible rubber cover. The utility model discloses through multilayer shock attenuation design reduces flight vibration influence: the shock attenuation pad of installation disc bottom directly buffers unmanned aerial vehicle flight vibration, and the flexible rubber cover in fixed lower tube and hard rubber cover double -deck shock attenuation structure, further absorb high frequency / low frequency vibration, cooperate stable frame, rubber pad layer and stable connecting rod + stable spring's combination, all -round restraint flight and in the mechanical shaking of collection process, the accuracy of spectral data acquisition and equipment durability are improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of spectral data acquisition technology, and in particular to a multispectral data acquisition device for unmanned aerial vehicles. Background Technology

[0002] In existing technologies, spectral data acquisition is the process of obtaining the spectral characteristics of a substance by measuring its interaction with electromagnetic waves (absorption, emission, scattering, etc.), and it is widely used in fields such as chemistry, environment, astronomy, and materials science. Multispectral remote sensing is a remote sensing technology that divides the electromagnetic waves radiated by ground objects into several narrower spectral bands and obtains information about the same target in different bands at the same time through photography or scanning.

[0003] A search revealed a Chinese patent application with patent number 202122903323.X, which discloses a UAV multispectral remote sensing image acquisition device. This device features a mounting frame inside the image acquisition box, on which several different types of filters are mounted. The filters can be replaced simply by rotating the mounting frame, eliminating the need for manual replacement by the user. Shock-absorbing components are incorporated into the mounting frame and image acquisition box to reduce vibration, protecting the mounting frame and minimizing relative displacement between the filters, the multispectral sensor, and the lens, thereby improving the quality of the acquired images.

[0004] In actual use, the image acquisition box is directly installed under the drone. The vibration generated during the drone's flight will directly affect the image acquisition box. Although the shock-absorbing blocks and springs can reduce the impact of vibration on the filter, they will still affect the quality of the spectral data. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multispectral data acquisition device for unmanned aerial vehicles (UAVs).

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The UAV multispectral data acquisition device includes:

[0008] A data collection drone, used to carry the entire device on a mobile basis;

[0009] A fixed upper cylinder is installed at the bottom of the data collection drone, and a fixed lower cylinder is fixedly installed at the bottom of the lower cylinder. A stabilizing frame is fixedly installed at the bottom of the lower cylinder, and a rubber pad layer is fixedly connected to the top of the stabilizing frame.

[0010] The mounting housing consists of an upper shell and a lower shell. A flexible rubber sleeve is fixedly fitted onto the outer wall of the mounting housing. A rigid rubber sleeve is fixedly fitted onto the outer wall of the flexible rubber sleeve. The rigid rubber sleeve is fixedly installed inside the lower cylinder.

[0011] A multispectral sensor has a servo motor on one side. An adjustment turntable is fixedly installed at the bottom of the output shaft of the servo motor. Multiple filters are fixedly installed at equal intervals on the top of the adjustment turntable, and multiple reflectors corresponding to the filters are fixedly installed at equal intervals on the outer wall of the adjustment turntable. The thickness of the multiple reflectors increases sequentially. An infrared positioning sensor that cooperates with the reflectors is fixedly installed at the top of the mounting shell for positioning the adjustment turntable.

[0012] As a further improvement of this utility model: a main controller and a battery module are fixedly installed on the top of the mounting shell, and the main controller is connected to a multispectral sensor and a servo motor through wires.

[0013] As a further embodiment of this utility model: a connecting bearing is fixedly installed on the top of the inner cavity of the fixed upper cylinder, and an installation swivel ring is fixedly installed on the inner wall of the inner ring of the connecting bearing.

[0014] As a further improvement of this utility model: multiple stabilizing links are equidistantly arranged at the bottom end of the mounting ring, and a stabilizing pressure ring is fixedly connected to the bottom end of each stabilizing link.

[0015] As a further improvement of this utility model: a stabilizing spring is sleeved on the outer wall of the stabilizing link, and a rotating ring is installed through the top of the stabilizing link and extends upward, with a limit ring fixedly installed at the top of its extended end.

[0016] As a further embodiment of this utility model: multiple connecting rod clamps are fixedly connected at equal intervals to the top of the fixed upper cylinder, and a fixed connecting rod is fixedly installed inside the connecting rod clamp.

[0017] As a further improvement of this utility model: a mounting plate is fixedly connected to the top of the plurality of fixed connecting rods, and a shock-absorbing pad is fixedly connected to the upper surface of the mounting plate.

[0018] As a further improvement of this utility model: the top of the mounting shell is provided with an assembly and installation groove, and the bottom wall of the assembly and installation groove is provided with a light-transmitting hole.

[0019] Compared with the prior art, this utility model provides a multispectral data acquisition device for unmanned aerial vehicles (UAVs), which has the following beneficial effects:

[0020] 1. This UAV multispectral data acquisition device reduces the impact of flight vibration through a multi-layer shock absorption design: the shock-absorbing pad at the bottom of the mounting plate directly buffers the UAV's flight vibration; the double-layer shock absorption structure of the flexible rubber sleeve and hard rubber sleeve inside the fixed lower cylinder further absorbs high-frequency / low-frequency vibrations; combined with the combination of a stable frame, rubber pad layer, and stable linkage + stable spring, it comprehensively suppresses mechanical shaking during flight and acquisition, significantly improving the accuracy of spectral data acquisition and equipment durability.

[0021] 2. This UAV multispectral data acquisition device uses the FUV-408 full-spectrum sensor to achieve all-round water body detection, covering a wide range of water quality indicators; the servo motor-driven adjustment dial can quickly switch between different filters, accurately detecting specific water quality parameters (such as chlorophyll, suspended solids, etc.) to meet diverse monitoring needs; the coordinated design of reflectors, infrared positioning sensors, and light-absorbing coatings ensures the positioning accuracy of the filters (identifying reflectors through reflection time difference, and eliminating interference with the light-absorbing coating), improving switching efficiency and reliability.

[0022] 3. The UAV's multispectral data acquisition device adopts an IP68 waterproof design to prevent water intrusion and damage to precision components; the stable frame, rubber pads and other structures enhance impact resistance and adapt to complex aquatic environments; the modular design facilitates assembly and maintenance, reducing operating costs.

[0023] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model;

[0025] Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model.

[0026] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0027] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0028] In the diagram: 1. Data acquisition drone; 2. Shock-absorbing pad; 3. Mounting plate; 4. Fixed connecting rod; 5. Connecting rod retainer; 6. Fixed upper cylinder; 7. Fixed lower cylinder; 8. Stabilizing frame; 9. Connecting bearing; 10. Mounting swivel; 11. Stabilizing connecting rod; 12. Stabilizing spring; 13. Stabilizing pressure ring; 14. Limiting retainer; 15. Hard rubber sleeve; 16. Flexible rubber sleeve; 17. Mounting upper shell; 18. Mounting lower shell; 19. Main controller; 20. Battery module; 21. Multispectral sensor; 22. Servo motor; 23. Adjustment turntable; 24. Light-absorbing coating; 25. Filter; 26. Reflector; 27. Assembly mounting slot; 28. Infrared positioning sensor; 29. ​​Light-transmitting hole; 30. Rubber pad layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] UAV multispectral data acquisition devices, such as Figures 1 to 4 As shown, it includes: a data acquisition drone 1 for carrying the entire device and a spectral data acquisition component set at the bottom of the data acquisition drone 1. The spectral data acquisition component, carried by the data acquisition drone 1, collects spectral data on the water quality of the river and lake basin, which facilitates the rapid assessment of the water quality status of the river and lake basin.

[0031] The main body of the photovoltaic data acquisition component is configured as a fixed upper cylinder 6 and a fixed lower cylinder 7 installed at the top and bottom. Multiple connecting rod clips 5 are fixedly connected at equal intervals to the top of the fixed upper cylinder 6. Fixed connecting rods 4 are fixedly installed inside the connecting rod clips 5. Mounting plates 3 are fixedly connected to the top of the multiple fixed connecting rods 4. Shock-absorbing pads 2 are fixedly connected to the upper surface of the mounting plates 3. The shock-absorbing pads 2 are in contact with the acquisition drone 1. The mounting plates 3 are fixed to the acquisition drone 1. The shock-absorbing pads 2 reduce the vibration generated by the acquisition drone 1 during flight and reduce the adverse effects of vibration on the photovoltaic data acquisition component.

[0032] The lower cylinder 7 is fixedly installed with an upper housing 17 and a lower housing 18. A flexible rubber sleeve 16 is fixedly fitted onto the outer wall of the housing, and a rigid rubber sleeve 15 is fixedly fitted onto the outer wall of the flexible rubber sleeve 16. The rigid rubber sleeve 15 fits against the inner wall of the lower cylinder 7. The two layers of flexible rubber sleeve 16 and rigid rubber sleeve 15 provide shock absorption, further reducing the impact of vibration on the photovoltaic data acquisition module.

[0033] A stabilizing frame 8 is fixedly installed at the bottom of the fixed lower cylinder 7, and a rubber pad 30 is fixedly connected to the top of the stabilizing frame 8. The rubber pad 30 is attached to the bottom of the fixed lower cylinder 7.

[0034] A connecting bearing 9 is fixedly installed at the top of the inner cavity of the fixed upper cylinder 6. An installation rotating ring 10 is fixedly installed on the inner wall of the inner ring of the connecting bearing 9. Multiple stabilizing connecting rods 11 are equidistantly arranged at the bottom end of the installation rotating ring 10. A stabilizing pressure ring 13 is fixedly connected to the bottom end of the stabilizing connecting rod 11.

[0035] A stabilizing spring 12 is sleeved on the outer wall of the stabilizing link 11, and a rotating ring 10 is installed through the top of the stabilizing link 11 and extends upward. A limit ring 14 is fixedly installed at the top of its extended end.

[0036] The stabilizing ring 13 presses against the top of the rigid rubber sleeve 15, and cooperates with the rubber pad 30 and the stabilizing frame 8 to ensure the stability of the housing during flight and data acquisition.

[0037] The top of the housing 17 has multiple mounting slots, which are used to fix the main controller 19, battery module 20, multispectral sensor 21 and servo motor 22, respectively. The battery module 20 provides power to the whole device.

[0038] The multispectral sensor 21 uses the FUV-408 full-spectrum sensor, which facilitates comprehensive data detection of the water body; the main controller 19 is used to receive the detection data from the multispectral sensor 21.

[0039] An adjustment turntable 23 is fixedly installed at the bottom of the output shaft of the servo motor 22. Multiple filters 25 are fixedly installed at equal intervals on the top of the adjustment turntable 23. The filters 25 are used to filter the light emitted by the multispectral sensor 21. The detection of specified indicators by the multispectral sensor 21 can be quickly adjusted according to actual needs.

[0040] Multiple reflectors 26 corresponding to filters 25 are fixedly installed at equal intervals on the outer wall of the adjustment turntable 23. The thickness of the multiple reflectors 26 increases sequentially. An infrared positioning sensor 28 that cooperates with the reflectors 26 is fixedly installed on the top of the mounting shell 18. The distance between the infrared positioning sensor 28 and the adjustment turntable 23 is fixed. The reflectors 26 reflect the infrared rays emitted by the infrared positioning sensor 28 back. Since the thickness of different reflectors 26 is different, the infrared laser reflection rebound time is also different. Based on the different times, the filter 25 corresponding to the reflector 26 is determined, which facilitates the quick positioning of the adjustment turntable 23.

[0041] The outer wall of the adjustment turntable 23 is coated with a light-absorbing coating 24 that does not cover the reflector 26 and does not reflect the infrared laser emitted by the infrared positioning sensor 28. When the reflective surface of the reflector 26 is completely perpendicular to the laser emission path of the infrared positioning sensor 28, the infrared positioning sensor 28 sends a feedback signal to the main controller 19. The main controller 19 controls the start and stop of the servo motor 22 according to the feedback signal.

[0042] The top of the mounting shell 18 is provided with an assembly and mounting groove 27. The infrared positioning sensor 28 and the adjustment turntable 23 are both located inside the assembly and mounting groove 27. The bottom wall of the assembly and mounting groove 27 is provided with a light-transmitting hole 29, which is used for the light from the multispectral sensor 21 to be emitted.

[0043] Working principle:

[0044] Reference Figures 1 to 4 Assemble the device as shown in the figure;

[0045] When in use, this device is controlled remotely to fly the data acquisition drone 1 along a planned path at a designated altitude over the river and lake basin, and then hover at a designated location. It then sends instructions to the main controller 19 via wireless signal (e.g., 5G signal). The main controller 19, based on these instructions, controls the multispectral sensor 21 to acquire spectral data from the water body. If more precise spectral data acquisition is required for specific data, the servo motor 22 is further controlled to adjust the filter 25, positioning it below the multispectral sensor 21. If water quality testing in deep water areas is required, the data acquisition drone 1 is controlled to descend, allowing the fixed lower cylinder 7 to enter the water body. Before the entire device operates, the spectral data acquisition components must be designed with IP68 waterproof rating and avoid landing in areas with algae accumulation. Furthermore, a controllable electric telescopic rod can be installed between the mounting plate 3 and the data acquisition drone 1, allowing the drone 1 to freely adjust the water depth of the multispectral sensor 21 while hovering, ensuring the comprehensiveness and accuracy of the spectral data acquisition.

[0046] 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. An unmanned aerial vehicle multispectral data acquisition device, characterized in that, include: A data collection drone (1) is used to carry the entire device for movement; The upper cylinder (6) is fixed and installed at the bottom of the collection drone (1), and the lower cylinder (7) is fixedly installed at the bottom. The lower cylinder (7) is fixedly installed at the bottom and a stabilizing frame (8) is fixedly installed at the bottom. The top of the stabilizing frame (8) is fixedly connected to a rubber pad (30). The mounting housing is composed of an upper shell (17) and a lower shell (18). A flexible rubber sleeve (16) is fixedly sleeved on the outer wall of the mounting housing. A hard rubber sleeve (15) is fixedly sleeved on the outer wall of the flexible rubber sleeve (16). The hard rubber sleeve (15) is fixedly installed inside the lower cylinder (7). A multispectral sensor (21) is provided with a servo motor (22) on one side. An adjustment turntable (23) is fixedly installed at the bottom of the output shaft of the servo motor (22). Multiple filters (25) are fixedly installed at equal intervals on the top of the adjustment turntable (23). Multiple reflectors (26) corresponding to the filters (25) are fixedly installed at equal intervals on the outer wall of the adjustment turntable (23). The thickness of the multiple reflectors (26) increases sequentially. An infrared positioning sensor (28) that cooperates with the reflectors (26) is fixedly installed on the top of the mounting shell (18) for positioning the adjustment turntable (23).

2. The unmanned aerial vehicle multispectral data acquisition apparatus of claim 1, wherein: The top of the mounting shell (17) is fixedly mounted with a main controller (19) and a battery module (20). The main controller (19) is connected to a multispectral sensor (21) and a servo motor (22) via wires.

3. The unmanned aerial vehicle multispectral data acquisition device of claim 1, wherein: A connecting bearing (9) is fixedly installed at the top of the inner cavity of the fixed upper cylinder (6), and an installation swivel ring (10) is fixedly installed on the inner wall of the inner ring of the connecting bearing (9).

4. The unmanned aerial vehicle multispectral data acquisition device of claim 3, wherein: The bottom end of the mounting ring (10) is provided with a plurality of stabilizing links (11) at equal intervals, and the bottom end of the stabilizing link (11) is fixedly connected to a stabilizing pressure ring (13).

5. The unmanned aerial vehicle multispectral data acquisition device of claim 4, wherein: The outer wall of the stabilizing link (11) is fitted with a stabilizing spring (12), and the top end of the stabilizing link (11) is fitted with a rotating ring (10) and extends upward. A limit ring (14) is fixedly installed at the top of its extended end.

6. The unmanned aerial vehicle multispectral data acquisition device of claim 1, wherein: The top of the fixed upper cylinder (6) is fixedly connected with multiple connecting rod sleeves (5) at equal intervals, and a fixed connecting rod (4) is fixedly installed inside the connecting rod sleeve (5).

7. The unmanned aerial vehicle multispectral data acquisition device of claim 6, wherein: The top ends of the plurality of fixed connecting rods (4) are fixedly connected to mounting plates (3), and the upper surface of the mounting plates (3) is fixedly connected to shock-absorbing pads (2).

8. The unmanned aerial vehicle multispectral data acquisition device of claim 1, wherein: The top of the mounting shell (18) is provided with an assembly and installation groove (27), and the bottom wall of the assembly and installation groove (27) is provided with a light-transmitting hole (29).

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