Efficient water sample collection device carried by unmanned aerial vehicle

Abstract

The efficient water sample collecting device comprises an upper layer, a middle layer and a lower layer, the lower layer is provided with a detachable sampling rotating disc, and a magnetic connecting piece, a sample bottle, a mark calibration sample bottle, a drainage channel and a main power source are arranged in the sampling rotating disc. The sample bottles, the mark calibration sample bottles and the drainage channels are circularly arranged and distributed at intervals, the mark calibration sample bottles are provided with magnetic labels, and meanwhile, the device is provided with a special remote controller. The unmanned aerial vehicle water sampling device is mounted on an unmanned aerial vehicle as an independent module for use, has remote control and manual control functions, can record the water depth and geographic position information of each sampling point, is provided with a plurality of sample bottles, can be quickly disassembled, is integrated with an unmanned aerial vehicle power supply battery, and can realize high-efficiency water sampling.

Description

Technical Field

[0001] The utility model relates to a high-efficiency water sample collection device carried by an unmanned aerial vehicle (UAV), belonging to the field of water sample collection. Background Art

[0002] Water samplers are tools used to collect water samples and are widely used in fields such as environmental monitoring, water resource management, ecological research, and aquaculture. Among the existing technologies, Chinese utility model patent CN219551972U discloses a drone-based fixed-depth water sample collection device. This device collects water samples at different depths through the drone itself, a water collection tank, and a hose retraction mechanism. However, this technical solution can only collect one water sample and lacks online detection capabilities. Chinese invention patent CN107462445B discloses a sliding water sample collector and collection method that can collect large amounts of water at once. However, the overall structure is relatively bulky and is suitable for fixed-type water sampling. Chinese utility model patent CN219495740U discloses a water sample collection device equipped with a hull mechanism and a collection mechanism. This device can collect multiple water samples at once, but it is difficult to ensure that different water samples are not contaminated during water sampling. Chinese utility model patent CN219495740U discloses a river and lake water sampling device. This device, mounted on a boat, is inefficient and requires human intervention during the sampling process, making it inconvenient to operate. Current water sampling devices are often directly attached to a platform, resulting in poor adaptability, limited sample collection, and the potential for contamination. Utility Model Content

[0003] Purpose of the utility model: In order to solve the above-mentioned technical problems, the utility model aims to provide a high-efficiency water sample collection device carried by a drone, which solves the technical problems of traditional water sample collection devices such as being greatly affected by environmental factors, low collection efficiency, time-consuming and labor-intensive, easy contamination of water samples, low intelligence level and the need for manual intervention.

[0004] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides an efficient water sample collection device carried by a drone, comprising an upper layer, a middle layer and a lower layer. The lower layer is provided with a detachable sampling turntable. The sampling turntable is provided with a magnetic connector, a sample bottle, a marked calibration sample bottle, a drainage channel, and a main power supply. The sample bottles, marked calibration sample bottles and drainage channels are arranged in a circular pattern and spaced apart. The marked calibration sample bottles are provided with magnetic labels for automatically calibrating the initial position. The device is also equipped with a dedicated remote control.

[0005] Furthermore, the upper layer of the collection device includes a drone connecting frame, a module connecting piece, and a ring landing gear. The drone connecting frame is connected to the ring landing gear, and the ring landing gear is connected to the device body through the module connecting piece.

[0006] Furthermore, the middle layer of the acquisition device includes a module housing, a stepper motor, a power interface, a data interface, an ABS contact sensor, an Arduino UNO R3 development board, an encoder, a connecting shaft, an auxiliary power supply, a power-off type electromagnet, a relay, a water pump, a water inlet, a motor bracket, a motor, a hose winch, a winch bracket, a latex water pipe, a water depth sensor, and a conical filter.

[0007] Furthermore, the left side of the module housing is provided with a power interface, a data interface, and an ABS contact sensing sensor from top to bottom, and the right side is provided with a motor bracket, a motor, a hose winch, a winch bracket, and a latex water pipe.

[0008] Furthermore, the data interface is connected to the drone equipment to transmit data, and the ABS contact sensing sensor is used to calibrate the initial position of the sampling turntable.

[0009] Furthermore, the stepper motor is connected to a power-off type electromagnet via a connecting shaft, and the power-off type electromagnet is provided with a positive pole, an insulating layer, and a negative pole in sequence from the outside to the inside.

[0010] Furthermore, the water depth sensor is arranged at the water suction end of the latex water pipe, the latex water pipe is connected to the conical filter (23), and the water outlet end of the latex water pipe is connected to the water pump.

[0011] Furthermore, the interior of the magnetic connector is provided with a positive electrode, an insulating layer, and a negative electrode in sequence from the outside to the inside.

[0012] Furthermore, a silicone ring and a water suction port are provided on the outside of the sample bottle body, and a catheter is provided on the inside, which is connected to the bottom of the bottle.

[0013] Furthermore, the main power supply in the sampling turntable will power the drone through the power interface, and will also power the encoder, stepper motor, water pump, motor, and supplement the auxiliary power supply.

[0014] Furthermore, the utility model is also provided with a special remote controller which can control the device step by step in manual mode. The remote controller is composed of an antenna, a 3-stage channel, a 2-stage channel, a power switch, a joystick, and a display screen.

[0015] This utility model configures the water sample collector as a separate module that can be mounted on various drone models, efficiently collecting water samples and collecting multiple water samples at a time. Different models and specifications can be customized according to needs, allowing drones to perform continuous sampling operations. Combined with the built-in water depth sensor and the drone's RTK module, it can accurately collect geographic location information and water depth data for each data collection, providing effective auxiliary information for later analysis.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0017] (1) The utility model can be customized to different specifications according to needs and carried on different types of drones to achieve high-efficiency, large-area water sample collection; the ABS contact sensing sensor and the magnetic label on the sample bottle can realize automatic calibration of the initial position and sample mark; the circular sampling turntable is mounted with multiple sampling bottles, and the collection and storage of different water samples are completed by rotating the sample turntable, which greatly increases the number of single samples; at the same time, the sampling turntable can realize rapid assembly and disassembly of the sampling turntable through the cooperation of electromagnets and magnetic connectors, which is more convenient and quick.

[0018] (2) The sampling turntable of the utility model has a built-in large-capacity lithium battery that can directly power the drone. When the sampling turntable is replaced, the drone's power is replenished at the same time, which greatly improves the operation efficiency and is simpler and more convenient.

[0019] (3) The utility model is equipped with a manual control mode and an automatic control mode. Water sample collection and monitoring can be completed remotely through the APP, and short-distance sampling can be achieved through the remote control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the main distribution diagram of the device;

[0021] Figure 2 This is the overall distribution diagram of the device;

[0022] Figure 3 It is a top view of the device bracket;

[0023] Figure 4 This is a top view of the sampling turntable of the device;

[0024] Figure 5 A top-down cross-sectional view of the sampling turntable of the device

[0025] Figure 6 This is a front view of the sampling turntable of the device;

[0026] Figure 7 This is a top view of the main components of the middle layer of the device;

[0027] Figure 8 This is a front view cross-section of the main components of the middle layer of the device;

[0028] Figure 9 This is a structural diagram of the connection of the sampling module of the device;

[0029] Figure 10 This is a structural analysis diagram of the sample bottle of the device;

[0030] Figure 11 An anatomy diagram of the calibration sample bottle structure for device labeling;

[0031] Figure 12 This is a diagram of the device-specific remote control. DETAILED DESCRIPTION

[0032] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0033] Example 1

[0034] like Figure 1-8 As shown, the efficient water sample collection device carried by the drone of the present invention includes an upper layer, a middle layer and a lower layer. The upper layer of the device is provided with a drone connecting frame 1, a module connecting member 2, and a circular landing gear 3. The drone connecting frame 1 is connected to the circular landing gear 3, and has 3 M3 screw holes on it for using screws to stably connect it to the drone frame. The module connecting member 2 connects the device body to the circular landing gear 3. The circular landing gear 3 can make the drone take off and land more stably and can play a certain role as a protective device.

[0035] The middle layer of the device is provided with a module housing 4, a stepper motor 5, a power interface 6, a data interface 7, an ABS contact sensor 8, an Arduino UNO R3 development board 9, an encoder 10, a connecting shaft 11, an auxiliary power supply 12, a power-off type electromagnet 13, a relay 14, a water pump 15, a water inlet 16, a motor bracket 17, a motor 18, a hose winch 19, a winch bracket 20, a latex water pipe 21, a water depth sensor 22, and a cone filter 23. The left side of the module housing 4 is provided with a power interface 6, a data interface 7, and an ABS contact sensor 8 from top to bottom. The data interface 7 is connected to the drone equipment for data transmission. The ABS contact sensor 8 is used to calibrate the initial position of the sampling turntable 24. The stepper motor 5 is connected to the power-off type electromagnet 13 via the connecting shaft 11. Figure 9-11As shown, the interior of the de-energized electromagnet 13 is composed of a positive pole 29-1, an insulating layer 29-2, and a negative pole 29-3 from the outside to the inside. The outer periphery of the magnetic connector 25 is made of magnetic material, and the interior is composed of a positive pole 29-1, an insulating layer 29-2, and a negative pole 29-3 from the outside to the inside. After the de-energized electromagnet 13 and the magnetic connector 25 on the sampling turntable 24 are precisely connected by magnetic force, the positive poles 29-1 and the negative poles 29-3 of the two are in contact with each other. After sampling turntable 24 is tightly connected to the module body via de-energized electromagnet 13, Arduino UNO R3 development board 9 uses encoder 10 to precisely rotate stepper motor 5. The connection between connecting shaft 11, de-energized electromagnet 13, and magnetic connector 25 then enables rotation of sampling turntable 24. Sampling turntable 24 rotates accordingly and enters calibration mode. To separate sampling turntable 24 from magnetic connector 25, power is turned on, the electromagnet loses its magnetism, and sampling turntable 24 falls off. When ABS contact sensor 8 senses magnetic label 27-4 on labeled calibration sampling bottle 27, calibration is complete, and the pump outlet is precisely aligned with the water inlet 16 of labeled calibration sample bottle 27. The right side of the module housing 4 is provided with a motor bracket 17 and a winch bracket 20 to fix the hose winch 19 and the motor 18. A latex water pipe 21 is wound on the winch bracket 20, and the latex water pipe 21 has a built-in data cable; a water depth sensor 22 is installed side by side at the water suction end of the latex water pipe 21 to obtain the current water depth data of the latex water pipe 21; the latex water pipe 21 is connected to a conical filter 23, and the conical filter 23 is conical, with a stainless steel cone at the bottom, which improves the stability of the latex water pipe 21 and the conical filter 23 when they are lowered, and the upper part is a perforated stainless steel mesh, which plays a role in filtering debris in the water body, and the water outlet end of the latex water pipe 21 is connected to the water pump 15.

[0036] The lower layer is provided with a detachable sampling turntable 24 , which mainly includes a magnetic connector 25 , a sample bottle 26 , a marked calibration sample bottle 27 , a drainage channel 28 , and a main power supply 29 . The drainage channels 28 of the sample bottles 26 and the marking and calibration sample bottles 27 are arranged in a circular pattern and spaced apart on the sampling turntable 24; above the sample bottles 26 is a water inlet 16 for directional water injection by the water pump 15; a silicone ring 26-1 and a water suction port 26-2 are provided on the outside of the sample bottle body of the sample bottle 26, and a conduit 26-3 is provided on the inside; the silicone ring 26-1 can effectively provide a certain degree of airtightness during water sample extraction and sample bottle 26 cleaning; the conduit 26-3 is connected to the bottom of the bottle, facilitating water sample extraction and sample bottle cleaning; one of the sample bottles 26 is set as a marking and calibration sample bottle 27, and a silicone ring 27-1 and a water suction port 27-2 are provided on the outside of the marking and calibration sampling bottle 27, and a conduit 27-3 is provided on the inside; the difference between the marking and calibration sampling bottle 27 and the sample bottle 26 is that a magnetic label 27-4 is provided below the water suction port 27-2 on the outside of the marking and calibration sampling bottle 27, which can be used in conjunction with the ABS contact sensing sensor 8 to realize the initialization calibration and marking of the sampling turntable 24. The sample bottles 26 and drainage channels 28 are arranged in a circular pattern and spaced apart on the sampling turntable 24. After completing the collection of a target water sample, the drone navigates to the second collection point. The sampling turntable 24 is driven by the stepper motor 5 to precisely align the water pump outlet with the drainage channel 28. The water pump begins to extract the water sample from the second sampling point and discharges the error water sample through the drainage channel to achieve the purpose of flushing the latex water pipe 21 and the water pump 15, eliminating the interference of the residual water sample from the first sampling point. After a period of discharge, the stepper motor 5 is again driven to precisely align the water pump 15 outlet with the water inlet 16 of the second sample bottle, and the water sample is collected from the second sampling point.

[0037] At the same time, a large-capacity lithium battery is embedded in the sampling turntable 24 as the main power supply 29 of the device. When the sampling turntable 24 is connected to the module body, the main power supply 29 in the sampling turntable 24 will power the drone through the power interface 6, and will also power high-power devices such as the encoder 10, stepper motor 5, water pump 15, motor 18, and will also replenish power to the auxiliary power supply 12. The auxiliary power supply 12 is used for the normal drive of the Arduino UNO R3 development board 9, relay 14, and power-off electromagnet 13.

[0038] Example 2

[0039] When the utility model is mounted on a medium or large drone, it needs to be used with a dedicated APP or manually controlled by a remote controller. The following takes a 12-group sample bottle device mounted on a drone as an implementation example, and uses the APP to introduce the main working process of the utility model:

[0040] (1) The original landing gear of the UAV is removed and the high-efficiency water sample collection device (hereinafter referred to as the collection device) is installed on the UAV through the UAV connecting frame. The UAV power supply interface is connected to the power interface 6 of the collection device. A USB type-C line is led out from the UAV and connected to the data interface 7 of the collection device. The sampling turntable magnetic connector 25 is brought close to the sampling device. After the sampling turntable 24 is automatically adsorbed on the sampling device, the sampling device is powered on and the sampling device automatically rotates the sampling turntable 24. When the ABS contact sensing device 8 detects the magnetic label 27-4, it stops rotating, completing the automatic position calibration of the sampling turntable.

[0041] (2) After the calibration is completed, the sampling device will power on the drone and start data transmission through the data interface 7; the collection device will obtain the current position information through the drone and send the collection device's own status information through the drone's Internet network; open the APP on the terminal, and after the APP obtains the signal of the collection device, the current position, water depth, and the number of water samples collected will be displayed on the APP interface, and the collection device can be controlled.

[0042] (3) When collecting water samples for the first time, when the drone reaches the designated sampling water area, the drone hovers; at this time, the command "release tube" is issued on the APP, and the winch motor 20 starts to drive the winch to release the latex water tube 21. When the water depth sensor 22 contacts the water surface, the water depth information and geographical location information are fed back to the APP interface, and the data is recorded and associated in "water sample 1". After reaching the predetermined water depth, the "stop" command is issued on the APP, and the winch motor 20 stops working; at this time, the command "sample" is issued on the APP, the water pump starts, and the water sample passes through the water pump along the suction pipe. During the first sampling, the water pump outlet injects the extracted water sample into the first sample bottle 26. After continuous extraction for 10 seconds, the water pump stops working. The APP end records the number of sampling as 1.

[0043] (4) Send the "retract tube" command on the APP, and the winch motor 20 drives the tube reel winch 19 to retract the water suction tube. When the winch motor 20 drives the winch to retract all the absorption tubes, the APP displays "You can continue to collect water samples."

[0044] (5) When collecting water samples for the second time, when the drone reaches the designated sampling water area, the drone hovers; at this time, the command "release pipe" is issued on the APP, the winch motor 20 starts to drive the hose winch 19 to release the water suction pipe, and when the water depth sensor 22 contacts the water surface, the water depth information and geographical location information are fed back to the APP interface, and the data is recorded and associated in "Water Sample 2". After reaching the predetermined water depth, the "stop" command is issued on the APP, and the winch motor 20 stops working; at this time, the command "sample" is issued on the APP, and the sample is taken. The sample turntable 24 rotates 15° clockwise, aligning the pump outlet with the drainage channel 28. After 3 seconds, the pump starts, and the water sample flows along the suction pipe through the pump 15, draining the water through the drainage channel 28. After 15 seconds of continuous extraction, the pump stops, and the sampling turntable rotates 15° clockwise, aligning the pump outlet with the inlet of the second sample bottle 26. After 3 seconds, the pump starts again, and the liquid flows through the pump into the second sampling bottle. After 10 seconds, the pump stops, completing the second sampling. The app records the number of samplings as 2. Send the "retract pipe" command on the app, and the capstan motor 20 drives the reel capstan 19 to retract the suction pipe.

[0045] (6) The subsequent 3-12 sampling processes are the same as step (5). After completing 12 samplings, the APP interface will no longer be able to perform the "release" and "close" operations.

[0046] (7) When the sampling device completes the collection of 12 water samples, it sends a return command to the drone. After returning to the transfer point, click "Save Data" on the app. At this time, the "Replace Sampling Disc" button on the app becomes bright. Click "Replace". At this time, the power-off electromagnet is powered on for 3 seconds, the magnetism disappears, and the sampling disc automatically falls off. After falling off for 3 seconds, the staff will bring an unused sampling disc 24 close to the sampling device. The sampling disc 24 will automatically be adsorbed on the sampling device. Repeat step (1) to immediately start the next round of sampling.

[0047] Example 3

[0048] The use process of Example 2 is adopted, except that step (6) is controlled in manual mode, which is controlled by a dedicated remote controller 30 of the distributed control device (such as Figure 12The remote control is composed of an antenna 30-1, a three-segment channel 30-2, a two-segment channel 30-3, a power switch 30-4, a joystick 30-5, and a display screen 30-6. The "release tube," "stop," and "close tube" commands are controlled by the three-segment channel, and the "sampling" command is controlled by the two-segment channel. Other processes remain unchanged. The main advantage of using manual control is that when staff need to collect water samples from multiple water layers at the same location and the app cannot perform specific water sampling, staff can use manual control to collect water samples. Secondly, short-distance sampling can also be achieved through the remote control.

Claims

1. An efficient water sample collection device carried by a drone, comprising an upper layer, a middle layer and a lower layer, characterized in that: The lower layer is provided with a detachable sampling turntable (24), and the sampling turntable (24) is provided with a magnetic connector (25), a sample bottle (26), a marking calibration sample bottle (27), a drainage channel (28), and a main power supply (29). The sample bottle (26), the marking calibration sample bottle (27), and the drainage channel (28) are arranged in a circular manner and spaced apart. The marking calibration sample bottle (27) is provided with a magnetic label (27-4) for automatically calibrating the initial position. At the same time, the device is equipped with a dedicated remote control (30).

2. The high-efficiency water sample collection device carried by a drone according to claim 1, characterized in that: The upper layer of the acquisition device comprises a drone connecting frame (1), a module connecting piece (2), and a circular landing gear (3); the drone connecting frame (1) is connected to the circular landing gear (3); and the circular landing gear (3) is connected to the device body via the module connecting piece (2).

3. The high-efficiency water sample collection device carried by a drone according to claim 1, characterized in that: The middle layer of the acquisition device comprises a module housing (4), a stepper motor (5), a power interface (6), a data interface (7), an ABS contact induction sensor (8), an Arduino UNO R3 development board (9), an encoder (10), a connecting shaft (11), an auxiliary power supply (12), a power-off type electromagnet (13), a relay (14), a water pump (15), a water inlet (16), a motor bracket (17), a motor (18), a pipe reel (19), a capstan bracket (20), a latex water pipe (21), a water depth sensor (22), and a cone filter (23).

4. The high-efficiency water sample collection device carried by a drone according to claim 3, characterized in that: The left side of the module housing (4) is provided with a power interface (6), a data interface (7), and an ABS contact induction sensor (8) from top to bottom, and the right side is provided with a motor bracket (17), a motor (18), a pipe reel winch (19), a winch bracket (20), and a latex water pipe (21).

5. The high-efficiency water sample collection device carried by a drone according to claim 4, characterized in that: The data interface (7) is connected to the drone equipment to perform data transmission, and the ABS contact induction sensor (8) is used to calibrate the initial position of the sampling turntable (24).

6. The high-efficiency water sample collection device carried by a drone according to claim 3, characterized in that: The stepper motor (5) is connected to a power-off type electromagnet (13) via a connecting shaft (11); the power-off type electromagnet (13) is provided with a positive pole (29-1), an insulating layer (29-2), and a negative pole (29-3) in sequence from the outside to the inside.

7. The high-efficiency water sampling device carried by a drone according to claim 3, characterized in that: The water depth sensor (22) is arranged at the water suction end of the latex water pipe (21), the latex water pipe (21) is connected to the conical filter (23), and the water outlet end of the latex water pipe (21) is connected to the water pump (15).

8. The high-efficiency water sampling device carried by a drone according to claim 1, characterized in that: The interior of the magnetic connector (25) is provided with a positive electrode (29-1), an insulating layer (29-2), and a negative electrode (29-3) in sequence from the outside to the inside.

9. The high-efficiency water sample collection device carried by a drone according to claim 1, characterized in that: The sample bottle (26) is provided with a silicone ring (26-1) and a water suction port (26-2) on the outside of the bottle body, and a conduit (26-3) is provided on the inside thereof, which is connected to the bottom of the bottle.

10. The high-efficiency water sample collection device carried by a drone according to claim 1, characterized in that: The main power supply (29) in the sampling turntable (24) will supply power to the drone through the power interface (6), and will also supply power to the encoder (10), the stepper motor (5), the water pump (15), the motor (18), and supplement the power to the auxiliary power supply (12).

Images