Ocean water quality unmanned aerial vehicle sampling and multi-parameter detection station air-ground combined device

Abstract

The invention discloses an ocean water quality unmanned aerial vehicle sampling and multi-parameter detection site air-ground combined device, which comprises an unmanned aerial vehicle and a base, the base comprises a supporting seat, a first charging metal contact, a first storage battery, a fixing ring and a multi-parameter water quality detection device, and the first charging metal contact is embedded and fixed at the top end of the supporting seat. A second motor drives a winding shaft to rotate, so that a steel wire rope is loosened, a sampling bin moves downwards under the action of gravity until the sampling bin goes deep into a marine sampling point, and then a second electromagnetic valve is opened, so that seawater is poured into the sampling bin through the second electromagnetic valve; after sampling, the unmanned aerial vehicle rises, ocean spectrum data are collected through a multispectral imaging camera, then the unmanned aerial vehicle resets and moves to the top end of a supporting seat, a second charging metal contact makes contact with a first charging metal contact to charge the unmanned aerial vehicle, meanwhile, a first electromagnetic valve is opened, and sampled seawater flows into a fixing ring; and the seawater quality can be detected through the multi-parameter water quality detection equipment.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicle sampling, and in particular to an air-ground combined device for unmanned aerial vehicle sampling and multi-parameter detection sites for ocean water quality. Background Art

[0002] Traditional offshore marine water quality testing includes fixed testing at sea (such as offshore buoys, offshore platforms, integrated monitoring sensors in the sea, which can detect nutrients, Ph, dissolved oxygen, etc.), aerial surveys (water samples can be collected in a variety of ways), aerial testing (drone hyperspectral image collection, remote sensing collection can detect chlorophyll a concentration, transparency, etc. of marine water bodies), shore station testing (through automatic water sampling to land, and then multi-parameter testing), manual water sampling testing, etc.

[0003] Existing detection methods have obvious limitations: methods that can detect multiple parameters are often difficult to perform fixed-point sampling at specific locations; and methods that can achieve fixed-point sampling at specific locations either cannot achieve multi-parameter detection or are very expensive. Therefore, it is urgent to develop a new device to effectively solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an air-ground combined device for ocean water quality drone sampling and multi-parameter detection sites to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an air-ground joint device for an ocean water quality UAV sampling and multi-parameter detection site, comprising a UAV and a base, the base comprising a support base, a first charging metal contact, a first battery, a fixing ring and a multi-parameter water quality detection device, the first charging metal contact is embedded and fixed at the top position of the support base, the first battery is fixed at one side of the support base, the fixing ring is fixed at the top position of the support base, and the multi-parameter water quality detection device is embedded and fixed at the lower end position of the support base.

[0006] Preferably, the UAV includes a support frame, a controller, a second battery, a propeller, a first motor, a second charging metal contact, a multispectral imaging camera and a sampling mechanism, wherein the second charging metal contact is embedded and fixed at the lower end of the support frame, the controller is embedded and fixed at the center of the support frame, the second battery is fixed at the top of the controller, and the multispectral imaging camera is fixed at the center of the lower end of the controller. The image data collected by the multispectral imaging camera on the ocean surface can calculate the chlorophyll a content by analyzing the reflectivity of specific bands in the hyperspectral image, and obtain information such as seawater transparency and turbidity based on the relationship model between hyperspectral data and seawater transparency. The sampling mechanism is arranged at the lower end of the support frame, the first motor is embedded and fixed inside the support frame, and the propeller is installed at the output end of the first motor.

[0007] Preferably, the sampling mechanism includes a cavity, a second motor, a winding shaft, a hollow cylinder, a wire rope, a sampling chamber, a first solenoid valve and a second solenoid valve, the cavity is opened at the lower end of the controller, the second motor is fixed on one side of the controller, the winding shaft is fixed at the output end of the second motor, the winding shaft movably penetrates into the cavity, the hollow cylinder is fixed at the lower end of the controller, the wire rope is wound and fixed on the outside of the winding shaft, the sampling chamber is fixed at the lower end of the wire rope, the first solenoid valve is embedded and fixed at the center position of the lower end of the sampling chamber, and the second solenoid valve is embedded and fixed at the center position of the top of the sampling chamber. When in use, the drone is controlled to fly to a specified position and then sampling is performed. When sampling, the height of the drone can be controlled to control the depth of water sample collection. At the same time, the second motor is started, and the second motor drives the winding shaft to rotate, so that the wire rope is loosened. Under the action of force, the sampling chamber moves downward until it reaches the ocean sampling point, and then the second solenoid valve is opened to allow seawater to flow into the sampling chamber through the second solenoid valve. After the ocean water sample is collected, the drone is raised and the multispectral imaging camera is started. The multispectral imaging camera collects image data from the ocean surface and calculates the chlorophyll a content by analyzing the reflectivity of specific bands in the hyperspectral image. Based on the relationship model between hyperspectral data and seawater transparency, information such as seawater transparency and turbidity is obtained, and the information is transmitted to the control terminal. After that, the drone is reset and moves to the top of the support seat, and the second charging metal contact contacts the first charging metal contact to charge the drone. At the same time, the first solenoid valve is opened, and the sampled seawater flows into the fixed ring. The seawater quality can be detected by the multi-parameter water quality detection equipment. The drone is convenient for fixed-point sampling, which facilitates the detection work.

[0008] Preferably, the detection head of the multi-parameter water quality detection equipment extends to an internal position of the fixing ring.

[0009] Preferably, the number of the second charging metal contacts is the same as the number of the first charging metal contacts.

[0010] Preferably, the controller further includes an inertial navigation module, a positioning module and a wireless transceiver module, and the controller is wirelessly connected to a control terminal.

[0011] Preferably, two hollow cylinders are provided and symmetrically fixed at both sides of the lower end of the controller.

[0012] Preferably, the lower end of the steel wire rope movably extends to the outside of the cavity and penetrates into the interior of the hollow cylinder.

[0013] Preferably, the first solenoid valve and the second solenoid valve have the same specifications.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When in use, the present invention controls the drone to fly to a designated position, and then performs sampling. During sampling, the detection height can be controlled by controlling the drone, and at the same time, the second motor is started, and the second motor drives the winding shaft to rotate, so that the wire rope is loosened. Under the action of gravity, the sampling chamber moves downward until the sampling chamber penetrates into the ocean sampling point position, and then the second solenoid valve is opened, so that seawater is poured into the sampling chamber through the second solenoid valve, and then the multi-spectral imaging camera is started. The multi-spectral imaging camera can calculate the content of chlorophyll a by analyzing the reflectivity of a specific band in the hyperspectral image of the image data collected from the ocean surface, and obtain information such as seawater transparency and turbidity based on the relationship model between the hyperspectral data and the transparency of seawater, and transmit the information to the control terminal. After that, the drone is reset and moved to the top of the support seat, and the second charging metal contact contacts the first charging metal contact to charge the drone. At the same time, the first solenoid valve is opened, and the sampled seawater flows into the interior of the fixed ring. The seawater quality can be detected by the multi-parameter water quality detection equipment, and the drone is convenient for fixed-point sampling, which facilitates the detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an air-ground combined device for ocean water quality drone sampling and multi-parameter detection stations of the present invention;

[0017] Figure 2 This is a cross-sectional view of an air-ground combined device for an ocean water quality drone sampling and multi-parameter detection station of the present invention;

[0018] Figure 3 It is an enlarged schematic diagram of an air-ground combined device A for an ocean water quality drone sampling and multi-parameter detection site of the present invention;

[0019] Figure 4 This is a flow chart of an air-ground combined device for an ocean water quality drone sampling and multi-parameter detection site of the present invention.

[0020] In the figure: 1. support base; 2. first battery; 3. drone; 4. first charging metal contact; 5. support frame; 6. controller; 7. propeller; 8. first motor; 9. second charging metal contact; 10. second battery; 11. multi-parameter water quality detection equipment; 12. fixing ring; 13. second motor; 14. hollow cylinder; 15. cavity; 16. winding shaft; 17. wire rope; 18. sampling chamber; 19. first solenoid valve; 20. second solenoid valve; 21. base; 22. multi-spectral imaging camera. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-3 The present invention provides a technical solution: an air-ground joint device for an ocean water quality drone sampling and multi-parameter detection site, comprising a drone 3 and a base 21, wherein the base 21 comprises a support seat 1, a first charging metal contact 4, a first storage battery 2, a fixing ring 12 and a multi-parameter water quality detection device 11, wherein the first charging metal contact 4 is embedded and fixed at the top position of the support seat 1, the first storage battery 2 is fixed to one side of the support seat 1 through a mounting frame, the fixing ring 12 is welded and fixed at the top position of the support seat 1, the multi-parameter water quality detection device 11 is embedded and fixed at the lower end position of the support seat 1, and the detection head of the multi-parameter water quality detection device 11 extends to the internal position of the fixing ring 12.

[0023] The drone 3 includes a support frame 5, a controller 6, a second battery 10, a propeller 7, a first motor 8, a second charging metal contact 9, a multispectral imaging camera 22 and a sampling mechanism. The second charging metal contact 9 is embedded and fixed at the lower end of the support frame 5. The number of the second charging metal contact 9 is the same as that of the first charging metal contact 4. The controller 6 is embedded and fixed at the center of the support frame 5. The second battery 10 is fixed to the top of the controller 6 by bolts. The multispectral imaging camera 22 is fixed to the center of the lower end of the controller 6 by bolts. The image data collected by the multispectral imaging camera 22 on the ocean surface can calculate the content of chlorophyll a by analyzing the reflectivity of a specific band in the hyperspectral image, and obtain information such as seawater transparency and turbidity based on the relationship model between hyperspectral data and seawater transparency. The sampling mechanism is arranged at the lower end of the support frame 5, the first motor 8 is embedded and fixed inside the support frame 5, the propeller 7 is installed at the output end of the first motor 8, the controller 6 also includes an inertial navigation module, a positioning module and a wireless transceiver module, and the controller 6 is wirelessly connected to the control terminal.

[0024] The sampling mechanism includes a cavity 15, a second motor 13, a winding shaft 16, a hollow cylinder 14, a wire rope 17, a sampling chamber 18, a first solenoid valve 19 and a second solenoid valve 20. The cavity 15 is opened at the lower end of the controller 6. The second motor 13 is fixed to one side of the controller 6 through a mounting frame. The winding shaft 16 is fixed to the output end of the second motor 13 through a coupling. The winding shaft 16 movably penetrates into the cavity 15. The hollow cylinder 14 is welded and fixed to the lower end of the controller 6. The hollow cylinder 14 is provided with Two, symmetrically fixed at both sides of the lower end of the controller 6, the wire rope 17 is wound and fixed on the outside of the winding shaft 16, the lower end of the wire rope 17 is movably extended to the outside of the cavity 15, and penetrates into the hollow cylinder 14, the sampling chamber 18 is welded and fixed at the lower end of the wire rope 17, the first solenoid valve 19 is embedded and fixed at the center of the lower end of the sampling chamber 18, and the second solenoid valve 20 is embedded and fixed at the top center of the sampling chamber 18. When in use, the drone 3 is controlled to fly to the specified position, and then sampling is performed. The sampling height can be controlled by controlling the drone 3 at the same time, and then the multispectral imaging camera 22 is started. The multispectral imaging camera 22 collects image data of the ocean surface. The content of chlorophyll a can be calculated by analyzing the reflectivity of a specific band in the hyperspectral image. The information such as seawater transparency and turbidity is obtained based on the relationship model between the hyperspectral data and the seawater transparency, and the information is transmitted to the control terminal. At the same time, the second motor 13 is started, and the second motor 13 drives the winding shaft 16 to rotate, so that the wire rope 17 is loosened, and the sampling chamber 18 moves downward under the action of gravity until the sampling chamber 18 penetrates into the ocean sampling point position, and then the second solenoid valve 20 is opened, so that seawater is poured into the sampling chamber 18 through the second solenoid valve 20, and then the drone 3 is reset and moved to the top of the support seat 1, and the second charging metal contact 9 contacts the first charging metal contact 4 to charge the drone 3. At the same time, the first solenoid valve 19 is opened, and the sampled seawater flows into the fixed ring 12. The seawater quality can be detected by the multi-parameter water quality detection equipment 11, and the fixed-point sampling is convenient through the drone 3, which facilitates the detection work.

[0025] Working principle: when in use, the drone 3 is controlled to fly to the designated location, and then sampling is performed. When sampling, the drone 3 can be controlled to control the detection height, and at the same time, the second motor 13 is started, and the second motor 13 drives the winding shaft 16 to rotate, so that the wire rope 17 is loosened, and the sampling chamber 18 moves downward under the action of gravity until the sampling chamber 18 penetrates into the ocean sampling point, and then the second solenoid valve 20 is opened, so that seawater is poured into the sampling chamber 18 through the second solenoid valve 20, and then the multispectral imaging camera 22 is started, and the image data collected by the multispectral imaging camera 22 on the ocean surface is transmitted. The chlorophyll a content can be calculated by analyzing the reflectivity of a specific band in the hyperspectral image, and the seawater transparency, turbidity and other information can be obtained based on the relationship model between the hyperspectral data and the seawater transparency, and the information is transmitted to the control terminal. After that, the drone 3 is reset and moved to the top of the support seat 1, and the second charging metal contact 9 contacts the first charging metal contact 4 to charge the drone 3. At the same time, the first solenoid valve 19 is opened, and the sampled seawater flows into the fixed ring 12. The seawater quality can be detected by the multi-parameter water quality detection equipment 11. The drone 3 facilitates fixed-point sampling and facilitates the detection work.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air-ground joint device for unmanned aerial vehicle sampling and multi-parameter detection of marine water quality, comprising an unmanned aerial vehicle (3) and a base (21), characterized in that: The base (21) comprises a support base (1), a first charging metal contact (4), a first storage battery (2), a fixing ring (12) and a multi-parameter water quality detection device (11); the first charging metal contact (4) is embedded and fixed at the top end of the support base (1); the first storage battery (2) is fixed at one side of the support base (1); the fixing ring (12) is fixed at the top end of the support base (1); and the multi-parameter water quality detection device (11) is embedded and fixed at the bottom end of the support base (1).

2. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 1 is characterized by: The unmanned aerial vehicle (3) comprises a support frame (5), a controller (6), a second storage battery (10), a propeller (7), a first motor (8), a second charging metal contact (9), a multi-spectral imaging camera (22) and a sampling mechanism, wherein the second charging metal contact (9) is embedded and fixed at the lower end position of the support frame (5), the controller (6) is embedded and fixed at the center position of the support frame (5), the second storage battery (10) is fixed at the top of the controller (6), the multi-spectral imaging camera (22) is fixed at the lower center position of the controller (6), the sampling mechanism is arranged at the lower end position of the support frame (5), the first motor (8) is embedded and fixed inside the support frame (5), and the propeller (7) is installed at the output end position of the first motor (8).

3. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 2 is characterized by: The sampling mechanism comprises a cavity (15), a second motor (13), a winding shaft (16), a hollow cylinder (14), a steel wire rope (17), a sampling chamber (18), a first electromagnetic valve (19) and a second electromagnetic valve (20); the cavity (15) is opened at the lower end of the controller (6); the second motor (13) is fixed on one side of the controller (6); the winding shaft (16) is fixed at the output end of the second motor (13); the winding shaft (16) movably penetrates into the cavity (15); the hollow cylinder (14) is fixed at the lower end of the controller (6); the steel wire rope (17) is wound and fixed on the outside of the winding shaft (16); the sampling chamber (18) is fixed at the lower end of the steel wire rope (17); the first electromagnetic valve (19) is embedded and fixed at the center of the lower end of the sampling chamber (18); and the second electromagnetic valve (20) is embedded and fixed at the center of the top end of the sampling chamber (18).

4. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 3 is characterized by: The detection head of the multi-parameter water quality detection device (11) extends to a position inside the fixing ring (12).

5. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 4 is characterized by: The number of the second charging metal contacts (9) is the same as the number of the first charging metal contacts (4).

6. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 5 is characterized by: The controller (6) also includes an inertial navigation module, a positioning module and a wireless transceiver module, and the controller (6) is wirelessly connected to a control terminal.

7. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 6 is characterized by: Two hollow cylinders (14) are provided and symmetrically fixed at two sides of the lower end of the controller (6).

8. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 7 is characterized by: The lower end of the steel wire rope (17) movably extends to the outside of the cavity (15) and penetrates into the interior of the hollow cylinder (14).

9. The air-ground combined device for ocean water quality drone sampling and multi-parameter detection site according to claim 8 is characterized by: The first solenoid valve (19) and the second solenoid valve (20) have the same specifications.

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