A multi-spectral remote sensing device for ocean water quality

Abstract

The present invention discloses a multi-spectral remote sensing device for ocean water quality, which relates to the technical field of ocean water quality detection, including a drone, wherein a hyperspectral camera is arranged on the front side of the drone; both sides of the drone are connected to supporting transverse cylinders; the interiors of the two supporting transverse cylinders are rotatably connected to inflatable rotary tubes, and inflatable floating beds are wound on the two inflatable rotary tubes. When the drone equipped with a hyperspectral camera of the present invention is conducting water quality detection and analysis in an ocean area, if it encounters strong winds or other reasons that make it impossible to fly back safely in time, the air pump and the power motor at the bottom of the drone can be controlled to start at the same time, so that the inflatable floating beds in the supporting transverse cylinders on both sides are drawn out, and at the same time, the air pump relies on the pipeline to inflate the drawn inflatable floating beds, so that they expand and expand, so as to facilitate floating on the water surface, and avoid the entire device from falling into the water due to the inability to fly back in time or other reasons, causing equipment damage and data loss.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean water quality detection, and in particular to an ocean water quality multi-spectral remote sensing device. Background Art

[0002] Multispectral remote sensing technology is a technology that obtains many very narrow spectral continuous image data within the visible light, near-infrared, mid-infrared and thermal infrared bands of the electromagnetic spectrum. Its imaging spectrometer can collect information on hundreds of very narrow spectral bands. Currently, remote sensing technology has been widely used in agriculture, forestry, geology, ocean, meteorology, hydrology, military, environmental protection and other fields for detection.

[0003] A Chinese patent with authorization announcement number CN105823735B discloses a water quality remote sensing measurement device, including a hull, on which an intelligent control device, a human-machine interaction interface, a drone and a sampling device are arranged, and on which a flight control system, a hyperspectral image measurement system and an information transceiver are arranged. The solution relies on the hull to sail into the corresponding waters, and then the drone on the hull is made to fly to a high place. The drone relies on the equipped spectral camera to take pictures, and then uses the hyperspectral image measurement system to analyze the water quality.

[0004] The shortcomings of the above-mentioned existing technical solutions are: the above-mentioned solutions mainly rely on the combination of hull equipment and drones, and can be applied to water quality analysis and detection in general waters. However, the ocean waters are generally vast, and strong winds or other special weather conditions are prone to occur on the sea surface. At this time, the drone may not be able to return to the hull in time after flying out, and due to the vast ocean waters and the influence of some weather conditions, the drone can hardly find other footholds to stop, and the drone equipped with spectral cameras in the existing technology cannot float on the water surface and operate. Once it falls into the water, it is easily damaged and cannot be recovered, and some detection data is lost, that is, when conducting water quality detection in an ocean environment, once an accident occurs, it is easy to be damaged and cannot be recovered. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-spectral remote sensing device for ocean water quality, so as to solve the technical problem that in the prior art, unmanned aerial vehicles equipped with multi-spectral remote sensing shooting technology are easily damaged and cannot be recovered when performing water quality detection in an ocean environment in the event of an accident.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A multi-spectral remote sensing device for ocean water quality, comprising a drone, wherein a hyperspectral camera is arranged on the front side of the drone; both sides of the drone are connected to supporting horizontal cylinders;

[0008] The insides of the two supporting transverse cylinders are both rotatably connected with an inflatable rotating tube, and a first coil spring is connected between the rotating end of the inflatable rotating tube and the corresponding supporting transverse cylinder, and an inflatable floating bed is wound on the two inflatable rotating tubes, and a one-way air intake valve is connected between one end of the inflatable floating bed and the corresponding inflatable rotating tube, and the other end of the inflatable floating bed passes through the corresponding side wall of the supporting transverse cylinder; a winding assembly is provided at the bottom of the drone, and a splicing assembly connected to the winding assembly is provided at the ends of the two inflatable floating beds;

[0009] An air pump is also provided at the bottom of the drone, and an air pipeline connected to the air pump assembly is provided at the rear ends of the two supporting horizontal cylinders;

[0010] A propeller assembly is arranged at the bottom of the supporting horizontal cylinder; and a sampling assembly is also arranged on the UAV.

[0011] As a further solution of the present invention: the propeller assembly includes a steering motor and a drive motor, the steering motor is connected to the bottom of the supporting cross cylinder, the drive motor is connected to the main shaft end of the steering motor, and the main shaft end of the drive motor is connected to a drive blade.

[0012] As a further solution of the present invention: the winding assembly includes a winding column and a first traction rope, the winding column is rotatably arranged at the bottom of the drone, and the bottom of the drone is also fixedly provided with a power motor for driving the winding column to rotate, and two groups of the first traction ropes are arranged and distributed on both sides of the winding column, and the ends of each group of the first traction ropes are connected to the corresponding inflatable floating bed through a splicing assembly.

[0013] As a further solution of the present invention: the two splicing components each include a connecting cross plate and a sealing plug, the connecting cross plate is connected to one end of the inflatable floating bed close to the winding assembly, and the connecting cross plate is connected to the end of the corresponding first traction rope, the sealing plug is connected to one end of the connecting cross plate, and a conical guide hole is provided at the end of the connecting cross plate away from the sealing plug, and an exhaust pipe connected to the interior of the inflatable floating bed is provided on the side of the conical guide hole close to the corresponding inflatable floating bed, and the exhaust pipe cooperates with the sealing plug.

[0014] As a further solution of the present invention: a fixed pulley matched with the first traction rope is also arranged under the drone.

[0015] As a further solution of the present invention: the inflation pipeline includes a main pipeline and a transition pipe head, the transition pipe head passes through the rear end of the supporting cross cylinder and is fixedly connected to the supporting cross cylinder, one end of the transition pipe head is rotatably connected to the corresponding inflation rotating pipe; the main pipeline is connected to the inflation end of the air pump, and a temporary elastic air storage bag is connected between the end of the main pipeline away from the air pump and the transition pipe head, an opening and closing valve assembly is provided at the end of the transition pipe head close to the temporary elastic air storage bag, and the opening and closing valve assembly is connected to the winding column.

[0016] As a further solution of the present invention: the opening and closing valve assembly includes a valve plate and a second traction rope, the valve plate is slidably inserted in the transition pipe head, a limiting spring is connected between the valve plate and the transition pipe head, one end of the valve plate located on the outside of the transition pipe head is rotatably connected to a connecting column, and a second disc spring is connected between the rotating end of the connecting column and the valve plate, the second traction rope is wound around the connecting column, and the end of the second traction rope is connected to the winding column.

[0017] As a further solution of the present invention: the sampling component includes a water storage box and a water pump, the water pump is arranged at the front end of the supporting horizontal cylinder, the water pumping end of the water pump is provided with a water pumping hose, the water storage box is arranged on the top of the drone, and a delivery pipe is connected between the drainage end of the water pump and the water storage box.

[0018] Beneficial effects of the present invention:

[0019] 1. The drone of the present invention is equipped with a hyperspectral camera to fly to the high altitude of the corresponding ocean area for shooting, and conducts water quality analysis through spectral remote sensing technology. When it suddenly encounters strong wind weather or other reasons that make it impossible to fly back safely in time, the air pump and power motor at the bottom of the drone can be controlled to start at the same time, and the power motor drives the winding column to wind the first traction rope on both sides, so that the inflatable floating beds in the supporting horizontal cylinders on both sides are drawn out, and the ends of the two inflatable floating beds are connected by the plugging plugs and exhaust pipes distributed on the connecting horizontal plate to achieve splicing. At the same time, the air pump relies on the pipeline to inflate the drawn inflatable floating beds to expand and expand them. In this way, the two inflatable floating beds are propped up at the bottom of the drone and float on the water surface, and can also rely on the propeller assembly to move on the water surface, that is, switch to the water surface movement mode, to avoid the entire device from falling into the water due to failure to fly back in time or other reasons, causing equipment damage and data loss.

[0020] 2. The air pump of the present invention does not need to be started later and can be started synchronously with the power motor. When the air pump is in the starting state, the transition pipe head is blocked by the valve plate, which can prevent the inflated floating bed from getting stuck during the process of being pulled out of the supporting cross cylinder, affecting its deployment and use. The air pump temporarily accumulates and pressurizes the air in the temporary elastic air storage bag. When the inflatable floating bed is fully deployed, the valve plate is opened due to the action of the second traction rope, which makes it convenient for the air in the temporary elastic air storage bag to be quickly filled into the inflatable floating bed, causing it to expand and prop up quickly, ensuring that the entire inflatable floating bed is effectively pulled out and can also be inflated and propped up in time.

[0021] 3. When the inflatable floating bed needs to be stored, the present invention only needs to control the power motor to drive the winding column to reverse. During this process, the inflatable rotating tube pulls back the inflatable floating bed under the action of the rebound force of the first coil spring, and the spliced ​​ends of the two inflatable floating beds are separated, thereby causing the corresponding exhaust pipes to open and realize automatic exhaust, so as to facilitate the restoration of the deflated state, and then wind it into the inside of the supporting cross tube, that is, it is convenient to restore to the flight mode, avoiding the increase of flight resistance of the unfolded inflatable floating bed in the flight mode, and the operation is convenient and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 It is a schematic diagram of a top view cross-sectional structure of the main pipeline, the inflatable floating bed and the supporting horizontal cylinder in the present invention;

[0026] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 5 It is a schematic structural diagram of the valve plate and the connecting rotating column in the present invention;

[0028] Figure 6 It is a schematic diagram of the local structure of the joint between two inflatable floating beds in the present invention;

[0029] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0030] Figure 8 It is a right view structural schematic diagram of the driving blade and the supporting cross cylinder in the present invention.

[0031] In the figure: 1. UAV; 2. Support cross cylinder; 3. Water pump; 4. Water pump hose; 5. Water storage box; 6. Hyperspectral camera; 7. Air pump; 8. Connecting cross plate; 9. Inflatable floating bed; 10. Main pipeline; 11. Driving blades; 12. First traction rope; 13. Winding column; 14. Power motor; 15. Fixed pulley; 16. Inflatable rotating pipe; 17. One-way air inlet valve; 18. Transition pipe head; 19. Temporary elastic air storage bag; 20. Valve plate; 21. Limit spring; 22. Connecting rotating column; 23. Second traction rope; 24. Sealing plug; 25. Conical guide hole; 26. Exhaust pipe; 27. Driving motor; 28. Steering motor; 29. ​​Second coil spring; 30. First coil spring; 31. Delivery pipe. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figure 1-Figure 8 As shown, a multi-spectral remote sensing device for ocean water quality is used to identify the ocean water quality based on multi-spectral remote sensing technology. Multi-spectral remote sensing technology is a technology that obtains many very narrow spectral continuous image data within the visible light, near infrared, mid-infrared and thermal infrared bands of the electromagnetic spectrum. Its imaging spectrometer can collect hundreds of very narrow spectral band information; and this device is used for marine area environment;

[0034] The device includes a drone 1, which can be remotely controlled to fly at high altitude. A hyperspectral camera 6 is arranged on the front side of the drone 1. When the drone 1 flies at a certain height above the ocean level, the hyperspectral camera 6 is used to photograph a large range of ocean areas. The hyperspectral camera 6 collects and analyzes the hyperspectral information of water quality through a hyperspectral image measurement system to quickly obtain water quality measurement results. In addition, the drone 1 is equipped with a data transmission device to facilitate the transmission of corresponding data to a control terminal.

[0035] Both sides of the drone 1 are connected to a supporting horizontal cylinder 2 through a bracket, and supporting convex feet are provided on the lower sides of both ends of the supporting horizontal cylinder 2; a propeller assembly for the device to move in water is provided at the bottom of the supporting horizontal cylinder 2, and the bottom of the supporting convex foot is lower than the position of the propeller assembly, ensuring that the entire device relies on the supporting convex foot as a support point when it is placed normally;

[0036] The propeller assembly includes a steering motor 28 and a drive motor 27. The steering motor 28 is connected to the bottom of the supporting cross tube 2. The main shaft of the steering motor 28 is vertically downward. The drive motor 27 is connected to the main shaft end of the steering motor 28, and the main shaft of the drive motor 27 is in a horizontal position. The main shaft end of the drive motor 27 is connected to the drive blade 11. When the device needs to move in the water, the drive motor 27 is started, and the drive motor 27 drives the drive blade 11 to rotate, thereby generating thrust. When steering is required, the steering motor 28 is controlled to drive the drive motor 27 and the drive blade 11 to deflect in the direction; it should be noted that the steering motor 28 and the drive motor 27 are both waterproof motors, and are controlled based on the remote control technology of the drone 1;

[0037] The insides of the two supporting transverse cylinders 2 are both rotatably connected with an inflatable rotating tube 16, and a first coil spring 30 is connected between the rotating end of the inflatable rotating tube 16 and the corresponding supporting transverse cylinder 2. The two inflatable rotating tubes 16 are both wound with an inflatable floating bed 9. The inflatable floating bed 9 is in a deflated state before being inflated and is wound on the inflatable rotating tube 16. A one-way air inlet valve 17 is connected between one end of the inflatable floating bed 9 and the corresponding inflatable rotating tube 16. The one-way air inlet valve 17 can be fixedly arranged on the inner wall of the inflatable rotating tube 16, and then After that, it is connected with the inflatable floating bed 9 through a hose, that is, a one-way air inlet valve 17 is connected with the inflatable rotating pipe 16 and the inflatable floating bed 9, and the one-way air inlet valve 17 only allows air to enter the inflatable floating bed 9 from the inflatable rotating pipe 16, and cannot flow back. The other end of the inflatable floating bed 9 penetrates the corresponding side wall of the supporting horizontal cylinder 2; a winding assembly is provided at the bottom of the drone 1, and the ends of the two inflatable floating beds 9 are provided with splicing assemblies that cooperate with the winding assembly. The splicing assembly facilitates the splicing of the ends of the inflatable floating beds 9 on both sides together;

[0038] The winding assembly includes a winding column 13 and a first traction rope 12. The winding column 13 is rotatably arranged at the bottom of the drone 1, and a power motor 14 for driving the winding column 13 to rotate is also fixedly arranged at the bottom of the drone 1. The power motor 14 can be controlled to start and stop based on the remote control technology of the drone 1. Two groups of first traction ropes 12 are arranged and distributed on both sides of the winding column 13. The ends of each group of first traction ropes 12 are connected to the corresponding inflatable floating bed 9 through a splicing assembly.

[0039] The two splicing components are symmetrically distributed in the center, and both splicing components include a connecting cross plate 8 and a blocking plug 24. The connecting cross plate 8 is connected to one end of the inflatable floating bed 9 close to the winding component, and the connecting cross plate 8 is connected to the end of the corresponding first traction rope 12. A fixed pulley 15 that cooperates with the first traction rope 12 is also provided under the drone 1. The fixed pulley 15 plays a steering role, so that the first traction rope 12 is pulled laterally; the blocking plug 24 is connected to one end of the connecting cross plate 8, and a conical guide hole 25 is provided at the end of the connecting cross plate 8 away from the blocking plug 24. An exhaust pipe 26 that is connected to the inside of the inflatable floating bed 9 is provided on the side of the conical guide hole 25 close to the corresponding inflatable floating bed 9. The end of the exhaust pipe 26 close to the inside of the inflatable floating bed 9 has been subjected to a shrinking treatment, and the exhaust pipe 26 cooperates with the blocking plug 24. The blocking plugs 24 and the exhaust pipes 26 on the connecting cross plates 8 on both sides are distributed as shown in the figure. Figure 6 As shown;

[0040] When the power motor 14 drives the winding column 13 to rotate, the winding column 13 winds up the first traction ropes 12 on both sides, so that the first traction ropes 12 on both sides respectively pull the corresponding deflated inflatable floating bed 9 out of the supporting cross cylinder 2. During this process, the inflatable floating bed 9 is gradually pulled out from the inflatable rotating tube 16, and the inflatable rotating tube 16 rotates, causing the first coil spring 30 to tighten and generate a rebound force. Finally, the connecting cross plates 8 at the ends of the inflatable floating beds 9 on both sides are close together, and the blocking plug 24 on one of the connecting cross plates 8 is close to the bottom of the inflatable floating bed 9. Guided by the tapered guide hole 25 on the other connecting horizontal plate 8, the plug 24 is inserted into the corresponding exhaust pipe 26 to block the exhaust pipe 26. Since the end of the exhaust pipe 26 close to the inside of the inflatable floating bed 9 has been processed by shrinking, it is convenient for the plug 24 to be effectively pressed against the exhaust pipe 26, so that the inflatable floating beds 9 on both sides can be inflated. It should be noted that the function of the tapered guide hole 25 is mainly to guide the plug 24 to be inserted into the corresponding exhaust pipe 26 for blocking, so as to prevent the two from being misaligned and affecting the docking.

[0041] An air pump 7 is also provided at the bottom of the drone 1, and the air pump 7 can be started and stopped based on the remote control technology of the drone 1; the rear ends of the two supporting horizontal cylinders 2 are both provided with an air pipeline connected to the air pump 7 assembly;

[0042] The inflation pipeline includes a main pipeline 10 and a transition pipe head 18. The transition pipe head 18 passes through the rear end of the supporting transverse cylinder 2 and is fixedly connected to the supporting transverse cylinder 2. One end of the transition pipe head 18 is rotatably connected to the corresponding inflation rotating pipe 16, that is, the inflation rotating pipe 16 can rotate relative to the transition pipe head 18, and can also be connected to the inside of the inflation rotating pipe 16; the main pipeline 10 is connected to the inflation end of the inflation pump 7, and a temporary elastic air storage bag 19 is connected between the end of the main pipeline 10 away from the inflation pump 7 and the transition pipe head 18, and an opening and closing valve assembly is provided at the end of the transition pipe head 18 close to the temporary elastic air storage bag 19, and the opening and closing valve assembly is connected to the winding column 13;

[0043] The opening and closing valve assembly includes a valve plate 20 and a second traction rope 23. The valve plate 20 is slidably inserted in the transition pipe head 18. The valve plate 20 controls the on-off state of the transition pipe head 18 by sliding. A limit spring 21 is connected between the valve plate 20 and the transition pipe head 18. One end of the valve plate 20 located outside the transition pipe head 18 is rotatably connected to a connecting column 22, and a second coil spring 29 is connected between the rotating end of the connecting column 22 and the valve plate 20. The second traction rope 23 is wound and connected to the connecting column 22, and the end of the second traction rope 23 is connected to the winding column 13.

[0044] When the drone 1 needs to switch to the underwater mode for movement, the air pump 7 and the power motor 14 are started at the same time. The power motor 14 then winds up the first traction rope 12 and the second traction rope 23 on both sides. The first traction rope 12 on both sides pulls out the rolled-up inflatable floating bed 9 to be spliced ​​together. At the same time, the second traction ropes 23 on both sides are first pulled and unfolded from the corresponding connecting rotating column 22 due to the traction effect. During this process, only the connecting rotating column 22 rotates, and the valve plate 20 maintains the position of the closed transition pipe head 18, thereby preventing the inflatable floating bed 9 from being inflated and stuck during the pulling and unfolding process, affecting the unfolding. The airflow generated by the air pump 7 is first filled into the temporary elastic air storage bag 19 through the main pipeline 10 to accumulate and increase the pressure. The temporary elastic air storage bag 19 can expand elastically. When the first traction ropes 12 on both sides are about to completely pull out the corresponding inflatable floating bed 9, the end of the second traction rope 23 close to the connecting rotating column 22 has been completely unfolded. At this time, the winding column 13 continues to wind. The second traction ropes 23 on both sides pull the corresponding valve plates 20 to slide relative to the transition pipe head 18, causing the transition pipe head 18 to be ventilated. At the same time, the first traction ropes 12 on both sides make the inflatable floating bed 9 fully stretched and spliced ​​together. Since the transition pipe head 18 is ventilated, the high-pressure air accumulated in the temporary elastic air storage bag 19 is instantly released and quickly enters the inflatable rotating pipe 16, and then is filled into the corresponding inflatable floating bed 9 through the one-way air inlet valve 17, so that the inflatable floating bed 9 is easily inflated. In addition, since the connecting transverse plates 8 connected to the inflatable floating beds 9 on both sides are close to each other, and the blocking plug 24 on one of the connecting transverse plates 8 is in contact with the exhaust pipe 26 on the other connecting transverse plate 8, when the inflatable floating beds 9 on both sides are inflated, the expansion effect can be relied on to further ensure that the blocking plug 24 effectively blocks and tightens the corresponding exhaust pipe 26; and in this process, the air pump 7 does not need to wait for the inflatable floating bed 9 to be completely pulled out of the supporting transverse tube 2 and then inflated.

[0045] It should be noted that an air pressure sensor can be installed inside the inflatable floating bed 9 to detect whether the internal air pressure reaches a set value, and the data is remotely transmitted to the control terminal, and the control personnel stop the air pump 7 in time according to the value;

[0046] The drone 1 is also provided with a sampling component, which includes a water storage box 5 and a water pump 3. The water pump 3 is arranged at the front end of the supporting horizontal cylinder 2. The water pumping end of the water pump 3 is provided with a water pumping hose 4, and the water pumping hose 4 faces downward. The water storage box 5 is arranged on the top of the drone 1. The water storage box 5 is equipped with a detachable box cover. A delivery pipe 31 is connected between the drainage end of the water pump 3 and the water storage box 5. When the drone 1 falls on the water surface and needs to extract ocean water as a sample, since the water pumping hose 4 is at the bottom and is immersed in the water at this time, the water pump 3 is started, and the water pump 3 relies on the water pumping hose 4 to extract seawater, and then transports it to the water storage box 5 through the delivery pipe 31 for temporary storage, so that it can be taken back by the drone 1 for testing and analysis.

[0047] The working principle of the present invention is as follows: first, the drone 1 is controlled to fly at a high altitude position corresponding to the ocean area, and then the large-scale ocean area is photographed by the hyperspectral camera 6; the hyperspectral camera 6 collects the hyperspectral information of the water quality through the hyperspectral image measurement system and performs data analysis to quickly obtain the water quality measurement results; and the drone 1 is equipped with a data transmission device to facilitate the transmission of the corresponding data to the control terminal;

[0048] When the drone 1 encounters strong winds during flight or needs to take seawater from the corresponding sea area as a water quality detection sample, the power motor 14 and the air pump 7 on the drone 1 can be remotely controlled to operate simultaneously, and the power motor 14 drives the winding column 13 to rotate, and the winding column 13 simultaneously winds up the first traction rope 12 and the second traction rope 23, and the first traction ropes 12 on both sides respectively pull the corresponding deflated inflatable floating bed 9 out of the supporting horizontal cylinder 2, and during this process, the inflatable floating bed 9 is gradually pulled out from the inflatable rotating tube 16, and the inflatable rotating tube 16 rotates, causing the first coil spring 30 to tighten and generate a rebound force, and finally the connecting horizontal plates 8 at the ends of the inflatable floating beds 9 on both sides are close together, and the blocking plug 24 on one of the connecting horizontal plates 8 is guided by the tapered guide hole 25 on the other connecting horizontal plate 8 and inserted into the corresponding exhaust pipe 26, and the exhaust pipe 26 is blocked;

[0049] The second traction ropes 23 on both sides are first pulled up and unfolded from the corresponding connecting rotating column 22 during the winding process. During this process, only the connecting rotating column 22 rotates. The second coil spring 29 is tightened due to the rotation of the connecting rotating column 22 to generate a rebound force, and the valve plate 20 keeps the position of the closed transition pipe head 18, thereby preventing the inflatable floating bed 9 from being inflated and stuck before it is completely pulled out of the supporting cross cylinder 2, affecting the unfolding. The airflow generated by the air pump 7 is first filled into the temporary elastic air storage bag 19 through the main pipeline 10 to accumulate and increase the pressure. The temporary elastic air storage bag 19 can expand elastically, and when the first traction ropes 12 on both sides are about to completely pull out the corresponding inflatable floating bed 9, the end of the second traction rope 23 close to the connecting rotating column 22 has been fully unfolded. At this time, the winding column 13 continues to wind, so that the second traction ropes 23 on both sides pull the corresponding valve plates 20 to slide relative to the transition pipe head 18, causing the transition pipe head 18 to be ventilated, and the limit springs are The spring 21 is stretched to produce a rebound force, and at this time, the inflatable floating beds 9 on both sides have been fully stretched and spliced ​​together. Since the transition pipe head 18 is ventilated, the high-pressure air accumulated in the temporary elastic air storage bag 19 is instantly released, quickly enters the inflatable rotating pipe 16, and then is filled into the corresponding inflatable floating bed 9 through the one-way air inlet valve 17, so as to facilitate the inflatable floating bed 9 to expand. Moreover, since the connecting transverse plates 8 connected to the inflatable floating beds 9 on both sides are close to each other, and the blocking plug 24 on one of the connecting transverse plates 8 abuts against the exhaust pipe 26 on the other connecting transverse plate 8, when the inflatable floating beds 9 on both sides expand, the expansion effect can be relied on to further ensure that the blocking plug 24 effectively blocks and tightens the corresponding exhaust pipe 26, and then the drone 1 can float on the water surface by relying on the inflated inflatable floating beds 9. Moreover, since the inflatable floating beds 9 exist in pairs and are spliced ​​together, the stability of the entire device floating on the water surface is improved.

[0050] At this time, the driving blades 11 at the bottom of the supporting horizontal cylinders 2 on both sides are immersed in the water, and the driving blades 11 can be driven to rotate by the driving motor 27 to generate thrust, and when steering is required, the steering motor 28 is controlled to drive the driving motor 27 and the driving blades 11 to deflect in the direction, so as to facilitate the control of the drone 1 to swim on the water surface, and the water pump 3 can be started, and the water pump 3 relies on the water hose 4 to pump seawater, and then transports it to the water storage box 5 through the delivery pipe 31 for temporary storage, so that it can be taken back by the drone 1 for testing;

[0051] When it is necessary to retract the inflatable floating bed 9 for normal flight, the power motor 14 is controlled to drive the winding column 13 to reverse, thereby releasing the reeled first traction rope 12 and the second traction rope 23. At this time, the inflatable rotary tube 16 rotates by relying on the resilience of the first coil spring 30. During the rotation process, the inflatable floating bed 9 in an expanded state is first squeezed at one end close to the supporting cross tube 2, causing the internal air flow to flow toward the end where the exhaust pipe 26 is located. At the same time, the connecting cross plate 8 at the spliced ​​end of the two inflatable floating beds 9 tends to separate. It should be noted that the end of the inflatable floating bed 9 connected to the inflatable rotary tube 16 adopts a soft belt connection, that is, after the inflatable floating bed 9 is completely pulled out from the inflatable rotary tube 16, the connected soft belt part is also pulled out from the supporting cross tube 2. The inflatable floating bed 9 is pulled out from the cylinder 2. After the inflatable floating bed 9 is filled and expanded, one end of the inflatable floating bed 9 close to the supporting horizontal cylinder 2 has a certain movable space, which is convenient for the inflatable rotating tube 16 to rotate so that the inflated inflatable floating bed 9 is pulled back a short distance. This distance is just enough to separate the blocking plug 24 at the other end from the corresponding exhaust pipe 26. The gas in the inflated inflatable floating bed 9 is discharged, so that the inflatable floating bed 9 is deflated, and then it is re-rolled into the supporting horizontal cylinder 2 for storage. At the same time, the valve plate 20 is reset by the rebound force of the limit spring 21, and the connecting rotating column 22 is rotated by the rebound force of the second coil spring 29 to rewind the second traction rope 23 released by the winding column 13. Finally, all parts are reset and the UAV 1 can take off normally.

[0052] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A multispectral remote sensing device for ocean water quality, comprising an unmanned aerial vehicle (1), wherein a hyperspectral camera (6) is arranged on the front side of the unmanned aerial vehicle (1); both sides of the unmanned aerial vehicle (1) are connected to supporting horizontal cylinders (2); the device is characterized in that: The insides of the two supporting transverse cylinders (2) are both rotatably connected with an inflatable rotating tube (16), and a first coil spring (30) is connected between the rotating end of the inflatable rotating tube (16) and the corresponding supporting transverse cylinder (2). An inflatable floating bed (9) is wound on the two inflatable rotating tubes (16), and a one-way air inlet valve (17) is connected between one end of the inflatable floating bed (9) and the corresponding inflatable rotating tube (16), and the other end of the inflatable floating bed (9) passes through the side wall of the corresponding supporting transverse cylinder (2); a winding assembly is arranged at the bottom of the drone (1), and a splicing assembly that cooperates with the winding assembly is arranged at the ends of the two inflatable floating beds (9); An air pump (7) is also provided at the bottom of the drone (1), and an air pipeline connected to the air pump (7) component is provided at the rear ends of the two supporting cross cylinders (2); A propeller assembly is provided at the bottom of the supporting horizontal cylinder (2); and a sampling assembly is also provided on the drone (1); The winding assembly comprises a winding column (13) and a first traction rope (12); the winding column (13) is rotatably arranged at the bottom of the drone (1); and a power motor (14) for driving the winding column (13) to rotate is also fixedly arranged at the bottom of the drone (1); two groups of the first traction rope (12) are arranged and distributed on both sides of the winding column (13); and the ends of each group of the first traction rope (12) are connected to the corresponding inflatable floating bed (9) through a splicing assembly; A fixed pulley (15) matching with the first traction rope (12) is also provided below the drone (1).

2. The multi-spectral remote sensing device for ocean water quality according to claim 1, characterized in that: The propeller assembly comprises a steering motor (28) and a drive motor (27); the steering motor (28) is connected to the bottom of the supporting cross cylinder (2); the drive motor (27) is connected to the main shaft end of the steering motor (28); and the main shaft end of the drive motor (27) is connected to a drive blade (11).

3. The multi-spectral remote sensing device for ocean water quality according to claim 1, characterized in that: The two splicing components each comprise a connecting transverse plate (8) and a plugging plug (24); the connecting transverse plate (8) is connected to one end of the inflatable floating bed (9) close to the winding assembly, and the connecting transverse plate (8) is connected to the end of the corresponding first traction rope (12); the plugging plug (24) is connected to one end of the connecting transverse plate (8); a conical guide hole (25) is provided at one end of the connecting transverse plate (8) away from the plugging plug (24); an exhaust pipe (26) connected to the inside of the inflatable floating bed (9) is provided on one side of the conical guide hole (25) close to the corresponding inflatable floating bed (9), and the exhaust pipe (26) cooperates with the plugging plug (24).

4. The multi-spectral remote sensing device for ocean water quality according to claim 1, characterized in that: The inflation pipeline comprises a main pipeline (10) and a transition pipe head (18); the transition pipe head (18) penetrates the rear end of the supporting transverse cylinder (2) and is fixedly connected to the supporting transverse cylinder (2); one end of the transition pipe head (18) is rotatably connected to the corresponding inflation rotating pipe (16); the main pipeline (10) is connected to the inflation end of the inflation pump (7); a temporary elastic air storage bag (19) is connected between the end of the main pipeline (10) away from the inflation pump (7) and the transition pipe head (18); an opening and closing valve assembly is provided at the end of the transition pipe head (18) close to the temporary elastic air storage bag (19); and the opening and closing valve assembly is connected to the winding column (13).

5. The multi-spectral remote sensing device for ocean water quality according to claim 4, characterized in that: The opening and closing valve assembly comprises a valve plate (20) and a second traction rope (23); the valve plate (20) is slidably inserted into the transition pipe head (18); a limit spring (21) is connected between the valve plate (20) and the transition pipe head (18); one end of the valve plate (20) located outside the transition pipe head (18) is rotatably connected to a connecting column (22); a second coil spring (29) is connected between the rotating end of the connecting column (22) and the valve plate (20); the second traction rope (23) is wound around the connecting column (22), and the end of the second traction rope (23) is connected to a winding column (13).

6. The multi-spectral remote sensing device for ocean water quality according to claim 1, characterized in that: The sampling assembly comprises a water storage box (5) and a water pump (3); the water pump (3) is arranged at the front end of the supporting horizontal cylinder (2); a water pumping hose (4) is arranged at the water pumping end of the water pump (3); the water storage box (5) is arranged on the top of the drone (1); a delivery pipe (31) is connected between the water discharge end of the water pump (3) and the water storage box (5).

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