Automatic water sample collection device based on multi-rotor unmanned aerial vehicle

Abstract

The automatic water sampling device comprises the unmanned aerial vehicle, a sampling container and a water taking mechanical facility, a rope is arranged at the bottom of the unmanned aerial vehicle, the upper end of the rope is fixed to the unmanned aerial vehicle, and the sampling container is fixedly arranged at the lower end of the rope; each water taking point is provided with a water taking mechanical facility matched with the sampling container, the unmanned aerial vehicle drives the sampling container to autonomously fly to the water taking point through the rope, and the sampling container is matched with the water taking mechanical facility to carry out water taking operation. The water quality sampling device can be used for sampling water quality of a water taking point and each water quality monitoring station, and manual operation is replaced to a certain extent, so that the human input and the workload are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model discloses an automatic water sample collection device based on a multi-rotor unmanned aerial vehicle. Background Art

[0002] With the development of science and technology and the progress of society, drones have been widely used in agriculture, industry, and daily life. However, in the daily operations of water plants, drone applications are still rare. Water plants face two major challenges in their daily operations: First, regular water quality sampling is required at water intake points and water quality monitoring stations, a task currently largely performed manually. Second, water pipeline inspections and security work in and around the water plant require manpower. Both of these challenges present challenges of long distances and a heavy workload. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides an automated water sample collection device based on a multi-rotor drone with simple structure, low cost and high working efficiency.

[0004] The technical solution of the utility model to solve the above technical problems is: an automated water sample collection device based on a multi-rotor drone, including a drone, a sampling container, and a water-taking mechanical facility. A rope is set at the bottom of the drone, the upper end of the rope is fixed on the drone, and the sampling container is fixed at the lower end of the rope. Each water-taking point is provided with a water-taking mechanical facility that cooperates with the sampling container. The drone drives the sampling container to fly autonomously to the water-taking point through the rope, and the sampling container cooperates with the water-taking mechanical facility to perform water-taking operations.

[0005] The above-mentioned automated water sample collection device based on a multi-rotor drone, the sampling container includes an infusion bottle and a cone, each water collection point is provided with a cone, the tip of the cone is open and the tip is set downward, a number of support rods are arranged around the cone, the cone is installed on the ground through the support rods, the tip of the cone is open and is placed upside down in the cone, the lower end of the rope is fixedly connected to the cone, the infusion bottle is fixedly set at the bottom opening of the cone with the opening facing downward, and the opening of the infusion bottle is sealed with a rubber stopper.

[0006] The above-mentioned automated water sample collection device based on a multi-rotor drone, the sampling container also includes an electromagnetic lock, the electromagnetic lock includes an electromagnet, a fixing bracket and a magnet, two magnets are symmetrically arranged on the inner conical surface of the cone, and the magnet is fixed to the cone through a fixing bracket, and eight electromagnets are evenly distributed on the inner conical surface of the cone.

[0007] The above-mentioned automated water sample collection device based on a multi-rotor drone, the water collection mechanical facilities include a stepper motor, a water sampling container, and a three-way solenoid valve. The water sampling container includes a needle, a first water pipe, a second water pipe, and a hose connector. The water inlet end of the three-way solenoid valve is connected to the water source through the first water pipe, the first water outlet end of the three-way solenoid valve is connected to one end of the second water pipe, and the other end of the second water pipe is connected to the needle through a hose connector. The needle is aligned with the bottom of the cone and fixed on the clamp, the output shaft of the stepper motor is fixedly connected to the screw rod, the slider is threaded on the screw rod, the clamp is fixedly connected to the slider, and a limit rod for limiting the lateral movement of the slider is passed through the slider.

[0008] In the above-mentioned automated water sample collection device based on a multi-rotor drone, a conical nozzle is placed ten centimeters next to the needle, the conical nozzle is fixed on the mounting bracket, and the conical nozzle is connected to the second water outlet end of the three-way solenoid valve through a third water pipe.

[0009] The above-mentioned automated water sample collection device based on a multi-rotor drone, the connection position between the first water outlet end of the three-way solenoid valve and one end of the second water pipe, the connection position between the other end of the second water pipe and the hose connector, the connection position between the water inlet end of the three-way solenoid valve and the first water pipe, the connection position between the conical nozzle and the third water pipe, and the connection position between the third water pipe and the second water outlet end of the three-way solenoid valve are all fixed by clamps.

[0010] In the above-mentioned automated water sample collection device based on a multi-rotor drone, a micro switch is provided on the inner conical surface of the cone, and the micro switch is electrically connected to the three-way solenoid valve to control the on and off of the three-way solenoid valve.

[0011] The beneficial effect of the present invention is that the present invention can sample the water quality at water intake points and water quality monitoring stations, replacing manual operation to a certain extent, thereby reducing manpower input and workload and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a top view of the sampling container of the present utility model.

[0014] Figure 3 It is a side view of the sampling container of the present utility model.

[0015] Figure 4 It is a structural diagram of the electromagnetic lock of the utility model.

[0016] Figure 5 It is a schematic diagram of the installation position of the micro switch of the utility model.

[0017] Figure 6It is a structural diagram of the utility model water intake mechanical facility.

[0018] Figure 7 It is a structural schematic diagram of the water sampling container of the present utility model.

[0019] Figure 8 It is a structural diagram of the solenoid valve of the utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 、 Figure 2 As shown, an automated water sample collection device based on a multi-rotor drone includes a drone 1, a sampling container 7, and a water-taking mechanical facility 4. A rope 2 is set at the bottom of the drone 1, the upper end of the rope 2 is fixed on the drone 1, and the sampling container 7 is fixed at the lower end of the rope 2. Each water-taking point is provided with a water-taking mechanical facility 4 that cooperates with the sampling container 7. The drone 1 drives the sampling container 7 to fly autonomously to the water-taking point through the rope 2, and the sampling container 7 cooperates with the water-taking mechanical facility 4 to perform water-taking operations.

[0022] like Figure 3 As shown, the sampling container 7 includes an infusion bottle 6 and a cone 3. A cone 22 is provided at each water intake point. The cone 22 has an open tip and is facing downward. Several support rods 23 are arranged around the cone 22. The cone 22 is installed on the ground through the support rods 23. The cone 3 has an open tip and is placed upside down in the cone 22. The lower end of the rope 2 is fixedly connected to the cone 3. The infusion bottle 6 is fixedly set at the bottom opening of the cone 3 with its opening facing downward. The opening of the infusion bottle 6 is sealed with a rubber stopper.

[0023] The sampling container 7 also includes an electromagnetic lock 8, such as Figure 4 As shown, the electromagnetic lock 8 includes an electromagnet 11, a fixing bracket 10 and a magnet 9. Two magnets 9 are symmetrically arranged on the inner conical surface of the cone 22, and the magnet 9 is fixed to the cone 22 through the fixing bracket 10. Several electromagnets 11 are evenly distributed on the inner conical surface of the cone 3.

[0024] like Figure 6-Figure 8As shown, the water collection mechanism 4 includes a stepper motor 14, a water collection container, and a three-way solenoid valve 18. The water collection container includes a needle 12, a first water pipe 15, a second water pipe 25, and a hose connector 20. The water inlet of the three-way solenoid valve 18 is connected to a water source via the first water pipe. The first water outlet of the three-way solenoid valve 18 is connected to one end of the second water pipe 25. The other end of the second water pipe 25 is connected to the needle 12 via the hose connector 20. The needle 12 is aligned with the bottom of the cone 3 and fixed to the fixture 13. The output shaft of the stepper motor 14 is fixedly connected to a screw, and a slider 19 is threaded onto the screw. The fixture 13 is fixedly connected to the slider 19. A limit rod 24 is inserted into the slider 19 to limit its lateral movement. Driven by the stepper motor 14, the screw rotates. Due to the limiting action of the limit rod 24, the slider 19 can only move up and down, thereby driving the needle 12 up and down.

[0025] A conical nozzle 16 is placed ten centimeters away from the needle 12 . The conical nozzle 16 is fixed on a mounting bracket 17 . The conical nozzle 16 is connected to the second water outlet of the three-way solenoid valve 18 through a third water pipe 26 .

[0026] The connection position between the first water outlet end of the three-way solenoid valve 18 and one end of the second water pipe 25, the connection position between the other end of the second water pipe 25 and the hose connector 20, the connection position between the water inlet end of the three-way solenoid valve 18 and the first water pipe 15, the connection position between the conical nozzle 16 and the third water pipe 26, and the connection position between the third water pipe 26 and the second water outlet end of the three-way solenoid valve 18 are all fixed by a clamp 21.

[0027] like Figure 5 As shown, a micro switch 5 is provided on the inner conical surface of the conical cylinder 22 , and the micro switch 5 is electrically connected to the three-way solenoid valve 18 to control the on and off of the three-way solenoid valve 18 .

[0028] Due to the particularity of the tap water sampling task, the design of the sampling device in the sampling container 7 has the following requirements: (1) prevent water sample contamination; (2) facilitate the transfer of water samples; and (3) eliminate the need for cleaning. Therefore, a medical-grade disposable infusion bottle 6 is used as the inner liner of the sampling container 7. The mouth of the infusion bottle 6, which serves as the inner liner, is fixed downward at the bottom of the sampling container 7. The water collection mechanism 4 can insert the needle 12 into the infusion bottle 6 to complete the water filling. Due to the sealing performance of the rubber stopper at the mouth of the infusion bottle 6, the water sample in the infusion bottle 6 will not be lost after the needle 12 is removed.

[0029] The working process of the present invention is as follows: the drone 1 uses a rope 2 to suspend the sampling container 7 and hovers above the water collection point. Due to the limited hovering accuracy of the drone 1, a cone 3 with a radius of at least 1.5m is required to ensure that the drone 1 can correctly lower the sampling container 7 into the water collection point device when hovering. The projection of the drone 1 when hovering needs to be kept within this cone 3, and then the sampling container 7 is slowly lowered to the bottom of the cone 3 by a winch. There are two corresponding electromagnets 11 on the inner surface of the cone 3, which are close to the two magnets 9 on the inner surface of the cone 22, so that the sampling container 7 is fixed on the cone 22. At the same time, the outer side of the cone 3 is close to the micro switch 5 on the inner side of the cone 22, thereby triggering the micro switch 5, thereby activating the water collection mechanical facility 4 to complete water collection.

[0030] In the water-taking mechanical facility 4, in order to prevent contamination of the water collection container, the needle 12 in the water-taking mechanical facility 4 can be sprayed and cleaned through the conical nozzle 16, and then the stepper motor 14 drives the needle 12 to move upward, and the needle 12 is inserted into the infusion bottle 6. Water is injected by controlling the three-way solenoid valve 18. At the same time, the water injection amount is controlled by the timing device. After the timing ends, the three-way solenoid valve 18 is closed, the water collection container is separated, and water collection is completed.

Claims

1. An automated water sample collection device based on a multi-rotor drone, characterized by: It includes a drone, a sampling container, and a water-taking mechanical facility. A rope is set at the bottom of the drone, the upper end of the rope is fixed on the drone, and the sampling container is fixed at the lower end of the rope. Each water-taking point is equipped with a water-taking mechanical facility that cooperates with the sampling container. The drone drives the sampling container to fly autonomously to the water-taking point through the rope, and the sampling container cooperates with the water-taking mechanical facility to perform water-taking operations.

2. The automated water sample collection device based on a multi-rotor drone according to claim 1, characterized in that: The sampling container includes an infusion bottle and a cone. A cone is set at each water collection point. The tip of the cone is open and the tip is facing downward. Several support rods are set around the cone. The cone is installed on the ground through the support rods. The tip of the cone is open and is upside down in the cone. The lower end of the rope is fixedly connected to the cone. The infusion bottle is fixedly set at the bottom opening of the cone with the opening facing downward. The opening of the infusion bottle is sealed with a rubber stopper.

3. The automated water sample collection device based on a multi-rotor drone according to claim 2, characterized in that: The sampling container also includes an electromagnetic lock, which includes an electromagnet, a fixing bracket and a magnet. Two magnets are symmetrically arranged on the inner conical surface of the cone, and the magnets are fixed to the cone through the fixing bracket. Eight electromagnets are evenly distributed on the inner conical surface of the cone.

4. The automated water sample collection device based on a multi-rotor drone according to claim 2, characterized in that: The water intake mechanical facility includes a stepper motor, a water sampling container, and a three-way solenoid valve. The water sampling container includes a needle, a first water pipe, a second water pipe, and a hose connector. The water inlet end of the three-way solenoid valve is connected to the water source through the first water pipe, the first water outlet end of the three-way solenoid valve is connected to one end of the second water pipe, and the other end of the second water pipe is connected to the needle through the hose connector. The needle is aligned with the bottom of the cone and fixed on the clamp. The output shaft of the stepper motor is fixedly connected to the screw rod, the slider is threaded on the screw rod, the clamp is fixedly connected to the slider, and a limit rod for limiting the lateral movement of the slider is passed through the slider.

5. The automated water sample collection device based on a multi-rotor drone according to claim 4, characterized in that: A conical nozzle is placed ten centimeters away from the needle, fixed on a mounting bracket, and connected to the second water outlet end of the three-way electromagnetic valve through a third water pipe.

6. The automated water sample collection device based on a multi-rotor drone according to claim 4, characterized in that: The connection position between the first water outlet end of the three-way solenoid valve and one end of the second water pipe, the connection position between the other end of the second water pipe and the hose connector, the connection position between the water inlet end of the three-way solenoid valve and the first water pipe, the connection position between the conical nozzle and the third water pipe, and the connection position between the third water pipe and the second water outlet end of the three-way solenoid valve are all fixed by clamps.

7. The automated water sample collection device based on a multi-rotor drone according to claim 4, characterized in that: A micro switch is provided on the inner conical surface of the conical cylinder. The micro switch is electrically connected to the three-way solenoid valve to control the on and off of the three-way solenoid valve.

Images