KR102101130B1 - Drone injection system using mixed fluids - Google Patents

Abstract

The present invention relates to a drone injection system using a mixed fluid, to reduce the constraint of the movement of the drone by reducing the weight of the fluid by using the synergistic force of the gas contained in the mixed fluid.
To this end, the present invention is mounted on a vehicle for high-pressure sprinkling or quarantine or firefighting, and is provided with a first fluid pump and a pneumatic pump and a mixer to pressurize and mix the fluid and gas and connect a hose to the output terminal of the mixer to mix the fluid and gas. The supplied mixed fluid is supplied to the upper part through the hose, so that the upward force of the gas inside the hose acts on the mixed fluid moving inside the hose, which is mounted on the ground supply unit, the drone, which counteracts the drone movement restriction due to the load of the hose. It is equipped with a hose attachment and detachment section at which the end of the hose of the supply section is detached, and a separate storage tank for separating and storing fluid and gas is supplied through the hose to receive the mixed fluid supplied from the ground supply section, separating and storing the fluid and gas, respectively. Including the drone supply for injecting each fluid and gas through the injection nozzle, Reduces the movement of the drone jeyakseong by and to separate the fluid mixture into the air with the fluid to be supplied to the injection nozzle enables a fine spray using a fluid nozzle.

Description

Drone injection system using mixed fluids

The present invention relates to a drone injection system using a mixed fluid, and more specifically, by supplying the mixed fluid mixed by pressing the fluid and gas to the upper drone through the hose, the synergistic force of the gas in the mixed fluid is the hose and the inside. Mixing to enable fine spraying using air-fluid nozzles by allowing the fluid to act on the mixed fluid to reduce drone movement limitations due to the weight of the fluid and to separate the mixed fluid into air and fluid to supply it to the spray nozzle. It relates to a drone injection system using a fluid.

Generally, unmanned aerial vehicles (Drones) have been used for military missions such as aerial photography or air strikes, such as manual flight by remote control of a ground control system or autonomous flight using a satellite navigation system (GPS). As the drone spread is expanding, control technology using a mobile communication terminal such as a smartphone is gradually being developed, and quarantine for high-resolution video and photo shooting and delivery, weather information collection, pesticide spray for pest control, decontamination, and prevention of spread of infectious diseases It is used in various fields such as work.

On the other hand, in the recent pest control, decontamination, and quarantine operations in the wide area, equipment such as robots, helicopters, and drones has been introduced due to a decrease in agricultural population due to aging of the population and human damage caused by drug exposure. The rate of control is increasing.

However, when using a drone to control, there is a limit to the weight of the drone because it must fly while storing the drug inside the drone. Therefore, in the case of controlling the drone, the drug in a form similar to the stock solution to increase efficiency There was a problem in that the damage caused by the drug caused by spraying the drug and plant damage were often caused.

In this regard, in the Republic of Korea Patent Registration No. 10-1662255 (2016.09.27. Registration; hereinafter, referred to as 'patent document 1'), a technique for supplying a pesticide spraying drone and cartridge type pesticide is known.

According to Patent Literature 1, the pesticide supply canister mounted on the drone is combined by the cartridge method, making it easy to use, minimizing the time required to install and replace the pesticide supply canister, and minimizing the size of the overall drone to consume it when driving the drone. It was made possible to minimize the power.

In addition, Korean Patent Publication No. 10-2017-026274 (published on November 17, 2017; hereinafter referred to as 'patent document 2') discloses a technique for drones capable of spraying pesticides while flying over agricultural land.

According to Patent Document 2, flight stability and operation are easy, pesticides can be sprayed with a uniform component, and it is possible to prevent clogging of the nozzle.

However, in this conventional technique, in order to store a large amount of medicine, the size of the drone needs to be increased as a whole, so a large power is required to drive the drone, and it is impossible to fill the storage container with medicine due to the overflow of the medicine by the movement of the drone. Therefore, the amount of use per one time is very limited. Therefore, there is a disadvantage in that it is inconvenient to use and requires a lot of work time because the medicine must be frequently supplemented and the storage container must be cleaned periodically or whenever the type of the medicine is changed.

In addition, in the case of the conventional drone for spraying pesticides as described above, problems such as corrosion or destruction of the diaphragm (isolation membrane) by the chemical mixture may occur, chemical liquid container, diaphragm (isolation membrane), centrifugation Since the pump, piping, and nozzle are always filled with the chemical mixture, there are many inconveniences, such as malfunctions and clogging of the piping or nozzle clogging. In addition, since a battery is used to support the drone, the flight time is shortened.

Therefore, there is a need for a quarantine or injection system that can efficiently work for a long time using a drone.

KR 10-1662 255 B1 2016.09.27. Enrollment KR 10-2017-0126274 A 2017.11.17. open

Therefore, the present invention is to solve the above problems, and the technical problem to be solved by the present invention is to mix the fluid and the gas and supply it to the drone at the top through the hose from the ground, by the synergistic force of the gas contained in the fluid. By allowing the fluid inside the hose to act synergistically, the constraint of the drone movement due to the weight of the fluid can be reduced, and the mixed fluid and gas are separated into air and fluid by a separate storage tank mounted on the drone, and then spray nozzle. It is intended to provide a drone injection system using a mixed fluid that enables fine injection using an air nozzle by allowing it to be supplied to.

One embodiment of the present invention for achieving the above object is mounted on a vehicle for high-pressure sprinkling or quarantine or firefighting, and equipped with a fluid pump and a pneumatic pump and a mixer to pressurize and mix the fluid and gas, and connect a hose to the output terminal of the mixer The ground that connects and supplies the mixed fluid in which the fluid and gas are mixed to the upper part through the hose, so that the upward force of the gas in the hose acts on the mixed fluid that moves inside the hose, thereby compensating for the drone movement constraint due to the load of the hose. It is mounted on a supply unit and a drone, and has a hose detachable part to which the end of the hose of the ground supply part is detached, and a separate storage tank for separating and storing fluid and gas is supplied with a mixed fluid supplied from the ground supply part through the hose to receive fluid and gas respectively. A drone ball that stores separately and stores each fluid and gas in a separate reservoir through an injection nozzle. It is a drone injection system using a mixed fluid, including the supply.

According to the drone injection system using the mixed fluid of the present invention, by supplying the mixed fluid in which the fluid and gas are mixed through the hose from the ground to the upper drone, the upward force of the gas contained in the fluid can act on the fluid inside the hose. , It provides the advantage of reducing the movement restriction of the drone through the weight reduction of the fluid, and also the present invention can be supplied to the injection nozzle after separating the mixed fluid into air and fluid by a separate storage tank mounted on the drone By doing so, it is possible to provide an advantage of enabling fine jetting using a dual nozzle.

1 is a schematic diagram illustrating the overall configuration of a drone injection system using a mixed fluid according to the present invention.
FIG. 2 is a detailed view of the drone supply unit of FIG. 1.
FIG. 3 is a detailed view of the ground supply unit of FIG. 1.
Figure 4 is a reference picture illustrating the mixing state of the fluid and the air inside the hose in the drone injection system using a mixed fluid according to the present invention.

Hereinafter, the configuration and operation of the drone injection system using a mixed fluid according to a preferred embodiment of the present invention and the effect of the action will be described in detail with reference to the accompanying drawings.

The terms or words used in the specification and claims are not to be construed as being limited to ordinary or lexical meanings, and the inventor is based on the principle that the concept of terms can be properly defined in order to best describe his or her invention. It should be interpreted in a sense and concept consistent with the technical idea of the present invention. Therefore, since the embodiments illustrated in the present specification and the configuration illustrated in the drawings are only the most preferred embodiments of the present invention, it is understood that there may be various equivalents and modifications that can replace them at the time of application. shall.

1 is a schematic diagram illustrating the overall configuration of a drone injection system using a mixed fluid according to the present invention, FIGS. 2 and 3 are detailed views of the ground supply unit 100 and the drone supply unit 200 of FIG. 1, respectively. 4 is a reference picture illustrating the mixed state of the fluid and air inside the hose, the drone injection system using a mixed fluid according to the present invention, as illustrated in Figure 1, the ground supply unit 100 installed on the ground, the drone It may be configured as a drone supply unit 200 mounted on.

The ground supply unit 100 is mounted on a vehicle such as high-pressure sprinkling or quarantine or fire-fighting to supply fluid at high pressure while carrying and moving fluids such as water for firefighting or water supply, chemicals for pest control, pesticides, and emulsifiers. It is possible to press and mix the fluid and gas using the fluid pump 110 and the pneumatic pump 120 and the mixer 130, and supply the mixed fluid to the upper part through the hose 140 to the inside of the hose 140 It is configured to make the lift force of the gas act on the mixed fluid inside the hose to counteract the movement restriction of the drone through the load reduction of the hose.

To this end, the ground supply unit 100, as illustrated in Figures 1 and 3, the fluid pump 110 and the pneumatic pump 120 are connected in parallel to the mixer 130 through each pipe, the mixer 130 The hose 140 is connected to the rear end of the fluid pump 110 and the mixer 130 and the pneumatic pump 120 and the first opening and closing valve (v1) and the second opening and closing valve on each pipe between the mixer 130 (v2), the first check valve (cv1) and the second check valve (cv2), the first pressure sensor (pc1) and the second pressure sensor (pc2) is installed, including the ground control 150, the user's operation And the control of the ground control unit 150 according to the detection signal of each sensor controls the operation of each pump and each on-off valve as a whole to supply the mixed fluid in which the fluid and gas are pressurized and mixed through the hose 140 to the upper portion.

The fluid pump 110 is connected to the mixer 130 through a first pipe (p1), is driven by a first motor (M1) whose operation is controlled by the ground control unit 150, the fluid reservoir (not shown in the figure) Pressure) to discharge the fluid to the first pipe (p1).

The pneumatic pump 120 is connected to the mixer 130 through the second pipe (p2), is driven by a second motor (M2) whose operation is controlled by the ground control unit 150, the gas (for example, air) Is pressed and discharged into the second pipe (p2).

Mixer 130 is connected to the fluid pump 110 and the pneumatic pump 120 through piping (p1, p2), respectively, mixing the pressurized fluid and gas discharged from each pump (110,120) at a constant rate to mix fluid To output through the hose 140.

One end of the hose 140 is connected to the output end of the mixer 130 and the other end is formed as a free end, and is automatically detachably connected to the hose detachable part 210 of the drone supply part 200 through this free end. Or separate. In addition, the hose 140 is installed to be automatically wound or unwound by a winding roll 141 mounted on a vehicle or the like. In this case, a position sensing sensor (not shown in the drawing) that senses the position of the drone and transmits it to the ground control unit 150 may be attached to the upper portion of the winding roll 141, and such a ground control unit 150 may be positioned. It may be configured to calculate the separation distance between the ground supply unit 100 and the drone supply unit 200 according to the output of the rotating roll 141 in the forward or reverse direction. When configured as described above, when the drone 20 leads the hose 140 connected to the hose attaching and detaching portion 210 and moves farther away, when the distance between the ground supplying part 100 and the drone supplying part 200 increases, the hose from the winding roll 141 When the 140 is automatically released and, on the contrary, the distance between the ground supply unit 100 and the drone supply unit 200 approaches, the hose 140 can be automatically wound around the winding roll 141.

The first opening / closing valve (v1) is installed on the first pipe (p1) between the fluid pump (110) and the mixer (130) and is opened and closed by the ground control unit (150) between the fluid pump (110) and the mixer (130). Adjusting the flow rate or interrupting the flow of the fluid, the second opening / closing valve (v2) is installed on the second pipe (p2) between the pneumatic pump 120 and the mixer 130 and opened and closed by the ground control unit 150 Becomes a gas between the pneumatic pump 120 and the mixer 130, that is, to regulate the amount of air or to regulate the flow of air.

The first check valve (cv1) is installed on the first pipe (p1) between the first opening and closing valve (v1) and the fluid pump 110, the fluid flow from the first opening and closing valve (v1) to the fluid pump (110) side Cut off, the second check valve (cv2) is installed on the second pipe (p2) between the second opening and closing valve (v2) and the pneumatic pump (120) pneumatic pump (120) at the second opening and closing valve (v2) Blocks gas flow to the side.

The first pressure sensor (pc1) and the second pressure sensor (pc2) is installed in the first pipe (p1) between the first check valve (cv1) and the first opening and closing valve (v1), respectively different pipe pressure values (for example For example, a pipe pressure value (LP) lower than a preset first reference value and a pipe pressure value (HP) higher than a preset second reference value may be checked and the check result is transmitted to the ground control unit 150.

The ground control unit 150 is connected to the drone control unit 240 of the drone supply unit 200 through a communication line 170 to enable wired or wireless communication and power supply to supply power or exchange control signals and data, and directly control It is provided with a control panel 151 for remote control and a remote controller 152 for remote control, the fluid pump 110 according to the user's manipulation through the control panel 151 or the remote controller 152 and the detection signal of each sensor. And a pneumatic pump 120 and the first and second opening and closing valves (v1, v2) and the drone control unit 240 to control the operation of the position detection sensor for detecting the position of the drone and the first and second pressure sensors (pc1) , pc2). Here, the ground control unit 150 may be configured to control opening and closing of the first opening / closing valve v1 and starting of the fluid pump 110 according to the check result of the first and second pressure sensors pc1 and pc2. It may be configured to calculate the separation distance between the ground supply unit 100 and the drone supply unit 200 according to the output of the sensor to rotate the winding roll 141 in the forward or reverse direction. Also, the communication line 170 is preferably installed along the hose in a state supported by the hose 140 connecting the ground supply unit 100 and the drone supply unit 200.

In addition, the ground supply unit 100 is formed by branching the bypass pipe 161 in the first pipe p1 in which the first opening / closing valve v1 and the first check valve cv1 are installed, and this bypass pipe 161 ), A fourth opening / closing valve (v4) for opening and closing of the bypass pipe is installed, and a second fluid storage tank (162) is provided at the end of the bypass pipe (161) to provide overpressure or drone supply (200) of the pipe. When the quick coupler 212 is released by the solenoid valve 211 in the hose detachable part 210, the fourth opening / closing valve (v4) is opened to recover the fluid inside the hose to the second fluid tank 162. Organized to be able to.

The drone supply unit 200 constitutes a separate body housing 201 and is attached to a lower portion of the housing body 21 of the drone 20 or mounted on the housing body 21 of the drone 20, and the ground supply unit 100 ) Is provided on the lower side of the body housing 201 is provided with a hose detachable portion 210, the end portion of the hose 140 is detachable, and provided with a separate storage tank 220 for separating and storing fluid and gas hose (140) It receives the mixed fluid pressurized from the ground supply unit 100 and stores it separately by fluid and gas, and stores each fluid and gas in the separate storage tank 220 for each of the third pipe (p3) and the fourth pipe (p4). Each is supplied to the injection nozzle 230, and is configured to simultaneously spray and mix fluid and gas.

To this end, the drone supply unit 200 includes a hose attachment / detachment unit 210, a separate storage tank 220, an injection nozzle 230, a third check valve (cv3), and a third open / close valve (as illustrated in FIGS. 1 and 2). v3), and equipped with a drone control unit 240, receives the mixed fluid pressurized from the ground supply unit 100 through the hose 140 to separately store and store the fluid and gas, and separate the fluid and gas from the separate storage tank 220. It is supplied to the injection nozzle 230 through each pipe (p3) (p4), respectively to finely spray the fluid and gas at the same time. In addition, the drone supply unit 200 may further include a lighting device 260 that displays a flight position of the drone 20 or generates a lighting effect using diffuse reflection of a fluid that is finely sprayed while performing an operation such as a performance. .

The hose detachable part 210 is installed under the body housing 201 of the drone supply part 200, and includes a quick coupler 212 and a quick coupler 212 that are quickly and directly coupled to the free end of the hose 140. It consists of a solenoid valve 211 that couples or separates the free end of the hose 140 with the quick coupler 212 by pulling or pushing. The quick coupler 212 is detachably coupled to the end of the hose 140, and the solenoid valve 211 is installed to push the quick coupler 212. An inner pipe 213 for receiving a mixed fluid through a hose 140 is installed inside the hose detachable portion 210 so as to be communicatively connected to the separation storage tank 220 through the inner pipe 213. The hose attachment / detachment part 210 is driven by a drone control unit 240, solenoid valve 211 is driven, and accordingly, the end of the hose 140 of the ground supply part 100 is connected to or disconnected from the quick coupler 212, and the hose The mixed fluid is supplied from the 140 through the internal pipe 213 and transferred to the separation storage tank 220.

The separation reservoir 220 is installed inside the body housing 201 of the drone supply unit 200, and the inside is separated into a fluid reservoir 221 and a gas reservoir 222 to separate fluid and gas into the fluid reservoir 221 and the gas. Separately stored in the storage tank 222, and provided with a plurality of water level sensors (LC, MC, HC) inside the storage tank, the low water level (LC), the medium water level (MC), and the high water level at a predetermined height in the separate storage tank 220. Each of (HC) is checked and the result is transmitted to the drone control unit 240.

In this separation storage tank 220, a fluid storage tank 221 is installed at a lower end, and a gas storage tank 222 is installed at an upper end. The fluid storage tank 221 and the gas storage tank 222 in the separation storage tank 220 having such a structure serve to separate the mixed fluid mixed in the mixer 130 by density, in particular, the gas storage tank 222 is a fluid pump (110) When used alone, it serves to prevent water hammering caused by air. Here, in the separation storage tank 220, a water hammer prevention unit 223 for preventing water hammering caused by a sudden pressure change inside the storage tank during injection of fluid and gas from the injection nozzle 230 may be further installed on the upper portion. .

In addition, a drone pump 250 for pressurizing and discharging the fluid supplied to the injection nozzle 230 is provided on the third pipe p3 connected from the fluid storage tank 221 of the separation storage tank 220 to the injection nozzle 230. . When the drone pump 250 is installed, it is preferable to apply it when the altitude is high and a large capacity is required, and it is very easy to supply pressure alone to the injection nozzle 230 at high pressure. The synergistic effect of the drone by water pressure Provides

The drone pump 250 includes a third motor M3, an electric valve 251, and a flow switch 252, and a reference value of a fluid supplied by the fluid pump 110 of the ground supply unit 100 is preset. If it falls further, it can be operated to form a constant injection pressure. At this time, the check result of the flow switch 252 is transmitted to the drone control unit 240, and the drone control unit 240 drives the third motor M3 according to the check result of the flow switch 252 to operate the motorized valve 251. It may be programmed to automatically control the opening and closing operation and pressurize the fluid by starting the drone pump 250 to supply it to the injection nozzle 230. In this case, it is possible to supply a constant pressure when decompression occurs due to the rise of the drone. Here, the electric valve 251 is controlled to be opened and closed by the drone control unit 240 and is normally opened, and when the pressure drops, the discharge pressure can be controlled.

The injection nozzle 230 is connected to the ends of the third pipe (p3) and the fourth pipe (p4), the fluid storage tank (221) of the separation storage tank 220 through the third pipe (p3) and the fourth pipe (p4) ) And the gas storage tank 222 are respectively connected to the fluid storage tank 221 and the gas storage tank 222 through the respective pipes (p3, p4), respectively, to be finely injected. To this end, the injection nozzle 230 is preferably composed of a two-fluid nozzle that receives fluid and gas, respectively, and atomizes and fine-sprays the fluid by mixing and dispersion due to their collision.

In addition, a lighting device 260 may be further attached to one side of the injection nozzle 230.

The lighting device 260 is mounted on the drone 20, or mounted on one side of the injection nozzle 230, is operated by the drone control unit 240, receives fluid and gas respectively, and is used for mixing and dispersion due to their collision. It can be attached to the air atomizing nozzle which atomizes and finely sprays the fluid. The lighting device 260 performs an operation such as a position display or performance of the drone 20, and can use the lighting effect largely by using diffuse reflection of a finely sprayed fluid.

The third check valve cv3 is installed on the inner pipe 213 between the hose detachable portion 210 and the separate storage tank 220 to block the fluid flow from the separate storage tank 220 to the hose detachable portion 210 side. .

The third opening / closing valve (v3) is installed on the fourth pipe (p4) between the gas storage tank (222) of the separation storage tank (220) and the injection nozzle (230), and is opened and closed by the drone control unit (240) for the gas storage tank ( 222) and the injection nozzle 230, that is, to regulate the amount of air, or to regulate the flow of air.

The drone control unit 240 is connected to the ground control unit 150 of the ground supply unit 100 through a communication line 170 to enable wired or wireless communication and power supply to receive power or exchange control signals and data. Solenoid valve 211, drone pump 250, and third opening and closing of the hose detachable part 210 according to the user's manipulation through the control panel 151 of the 150 or the remote controller 152 and the detection signals of each sensor The operation of the valve v3 is entirely controlled, and check results of the first to third water level sensors LC, MC, and HC and the flow switch 252 are collected.

The drone control unit 240 uses the wireless communication using the remote controller 152 of the ground control unit 150 or the communication line 170 to check the low water level (LC), medium water level (MC), and high water level (HC) check results. The ground control unit 150 is notified through wired communication. Accordingly, when the low water level LC is checked, the ground control unit 150 starts the fluid pump 110 and opens the first opening / closing valve v1 to increase the water level of the fluid storage tank 221 of the separation storage tank 220, and the heavy water. When the upper MC is checked, normal operation is performed, and when the high water level HC is checked, the fluid pump 110 is decelerated, and the first opening / closing valve v1 is closed to block fluid flow.

The lighting device 260 may be mounted on the housing body 21 of the drone 20, or may be installed on one side of the injection nozzle 230, and FIG. 2 illustrates a case where it is installed on one side of the injection nozzle 230, have. The lighting device 260 is controlled by the drone control unit 240 to control the lighting or flashing operation to display the flight position of the drone 20, or to be finely jetted from the injection nozzle 230 while performing an operation such as a performance. Through the diffuse reflection of the fluid, it is possible to exert the lighting effect when performing a drone.

When explaining the operation of the drone injection system using a mixed fluid according to the present invention configured as described above and the effect of the operation as follows.

First, the ground supply unit 100 is mounted on a vehicle such as high-pressure sprinkling or quarantine or fire-fighting, which supplies fluid at high pressure while moving and carrying fluids such as water for firefighting or water supply, chemicals for pest control, pesticides, and emulsifiers. , The drone supply unit 200 attaches a separate body housing 201 to the lower portion of the housing body 21 of the drone 20 or mounts it on the housing body 21 of the drone 20 and then supplies the ground supply unit 100. The free end of the hose 140 is connected to the quick coupler 212 of the hose attachment / detachment 210 of the drone supply 20.

The operation of the drone 20 is started according to the user's operation in the connected state as described above, the drone 20 leads the hose 140 connected to the hose attaching and detaching part 210 and goes farther to the ground supply part 100 and the drone supply part ( When the distance between 200) increases, the ground control unit 150 calculates the separation distance between the ground supply unit 100 and the drone supply unit 200 according to the output of the position detection sensor, and then rolls the winding roll 141 in the direction in which the hose is released. Since it can be rotated, the hose 140 is automatically released from the winding roll 141. Conversely, when the distance between the ground supply unit 100 and the drone supply unit 200 approaches, the ground control unit 150 calculates the separation distance between the ground supply unit 100 and the drone supply unit 200 according to the output of the position detection sensor, and the hose Since the winding roll 141 can be rotated in the winding direction, the hose 140 is automatically wound around the winding roll 141.

In the drone flight state, when there is a user manipulation for injection of a drug or the like using the control panel 151 or the remote controller 152 of the ground control unit 150, the ground control unit 150 uses the fluid pump 110. And the pneumatic pump 120 at the same time as opening the first opening and closing valve (v1) and the second opening and closing valve (v2) to the mixer 130 side through the first pipe (p1) and the second pipe (p2) and the fluid Each gas can be supplied by being pressurized. At this time, the first pressure sensor (pc1) and the second pressure sensor (pc2) is the first pipe (p1) between the first check valve (cv1) and the first opening and closing valve (v1), for example, than the preset first reference value Different pipe pressure values, such as a low pipe pressure value and a pipe pressure value higher than a preset second reference value, are detected and transmitted to the ground control unit 150.

Subsequently, the mixer 130 pressurizes and mixes the fluid and gas to supply the mixed fluid to the upper portion through the hose 140. Therefore, in the hose 140, as shown in the reference picture of FIG. 4, the upward force of the pressurized gas 2 mixed with the fluid 1 pressurized by the fluid pump 110 acts as the upward force for the mixed fluid inside the hose. Since it is possible to quickly increase the fluid in the hose and reduce the load on the drone through the load reduction of the hose, it is possible to offset the constraint of the drone movement due to the load on the hose.

On the other hand, when there is a user manipulation for injection of a drug or the like using the control panel 151 or the remote controller 152 of the ground control unit 150, the control signal by the ground control unit 150 is connected to the communication line 170. Through this, it can be transmitted to the drone control unit 240 of the drone supply unit 200.

Therefore, the drone supply unit 200 receives the mixed fluid delivered from the ground supply unit 100 through the hose 140 through the internal pipe 213 of the hose detachable unit 210, and the fluid storage tank 221 of the separation storage tank 220 ) And the gas storage tank 222 separately stored as fluid and gas, and the fluid and gas separately stored in the fluid storage tank 221 and the gas storage tank 222 of the separate storage tank 220, respectively, each third pipe ( P3) and the fourth pipe (p4) through the supply to the injection nozzle 230, respectively, it is possible to simultaneously mix the fluid and gas injection. At this time, since the separate storage tank 220 is provided with a fluid storage tank 221 at the lower end and a gas storage tank 222 at the upper end, the fluid storage tank 221 and the gas storage tank 222 in the separation storage tank 220 having such a configuration are installed. In the mixer 130, the mixed fluid mixed in the mixer 130 can be separated by density. In particular, when the gas pump 222 is used alone, the water tank 110 prevents water hammering due to a sudden pressure change inside the reservoir. It is possible to perform the function of the preventer.

In addition, at this time, a plurality of water level sensors (LC, MC, HC) inside the separate storage tank 220, the low water level (LC), the medium water level (MC), and the high water level (HC) at a predetermined height in the separate storage tank 220, respectively By checking it, the result can be delivered to the drone control unit 240.

Therefore, the drone control unit 240, the low water level (LC), the medium water level (MC), and the high water level (HC) check results of the ground control unit 150, the remote controller 152 wireless communication or wired communication using the communication line 170 Via the ground control unit 150. Accordingly, when the low water level LC is checked, the ground control unit 150 starts the fluid pump 110 and opens the first opening / closing valve v1 to increase the level of the fluid storage tank 221 of the separation storage tank 220. do. On the other hand, the drone control unit 240 performs normal operation when the medium water level MC is checked, and when the high water level HC is checked, decelerates the fluid pump 110 and closes the first opening / closing valve v1 to close the flow of fluid. Will be blocked.

On the other hand, in the present invention, the drone pump 250 and the electric valve to pressurize and discharge the fluid supplied to the injection nozzle 230 on the third pipe p3 connected from the fluid storage tank 221 to the injection nozzle 230 ( 251) and the flow switch 252 is installed, when the pressure of the fluid supplied by the fluid pump 110 of the ground supply unit 100 falls, the flow switch 252 flows the fluid in the third pipe (p3) It is checked and delivered to the drone control unit 240, and accordingly, the drone control unit 240 starts the drone pump 250 to pressurize the fluid and supply it to the injection nozzle 230. As a result, the injection nozzle 230 is supplied with a fluid and a gas as a two-fluid nozzle, so that the fluid can be atomized and finely sprayed by mixing and dispersion due to their collision. In addition, when the drone pump 250 is installed, it is preferable to apply it when a high altitude is required and a large capacity is required, and it is very easy to supply pressure alone to the injection nozzle 230 at high pressure. This provides a synergistic effect of the drone by water pressure.

In addition, the ground supply unit 100 according to the present invention is formed by branching the bypass pipe 161 in the first pipe p1 in which the first opening / closing valve v1 and the first check valve cv1 are installed. After installing the fourth opening / closing valve (v4) for opening and closing the bypass pipe on the pipe 161, the second fluid storage tank 162 is provided at the end of the bypass pipe 161, so that the overpressure or drone of the pipe When the quick coupler 212 is disengaged by the solenoid valve 211 in the hose attachment / detachment part 210 of the supply part 200, the fourth opening / closing valve v4 is opened to quickly recover the fluid inside the hose. do.

Thereafter, when power is applied from the drone control unit 240 to the solenoid valve 211 of the hose detachable part 210, the solenoid valve 211 operates to push out the quick coupler 212, whereby the hose detachable part As the hose 140 is removed from the quick coupler 212 of 210, the connection between the hose 140 of the ground supply unit 100 and the hose attachment and detachment unit 210 of the drone supply unit 200 may be released. Such an operation may be used when the movement of the drone 20 is impossible due to the weight of the hose 140 or other object while performing an operation such as evolution or quarantine or disaster prevention.

On the other hand, in the drone injection system according to the present invention for driving the lighting device 260 using the control panel 151 or the remote controller 152 of the ground control unit 150 as necessary during flight or performance of the drone 20. When there is a user manipulation, the ground control unit 150 transmits a control signal for driving the lighting device to the drone control unit 240 through the communication line 170 or wirelessly, so that the drone control unit 240 may use the drone 20 ) By lighting or flashing the lighting device 260 installed on the body or the injection nozzle 23, when mounted on the drone 20, the flight position of the drone 20 can be displayed in real time, and the injection nozzle 230 When installed in, it is possible to exert a lighting effect through diffuse reflection of a fluid that is finely sprayed when performing a performance.

According to the present invention, the fluid and gas are mixed and supplied from the ground to the upper drone through the hose, so that the upward force of the pressurized gas contained in the mixed fluid can act on the fluid inside the hose, thereby reducing the weight of the fluid. It is possible to reduce the movement restriction of the drone, and also, the present invention is to separate the mixed fluid into air and fluid by a separate storage tank mounted on the drone, and then pressurize the spray nozzle to supply each, so fine spraying using a dual nozzle It is possible to provide the advantage of enabling.

As described above, although the present invention has been described by a limited embodiment and drawings, the present invention is not limited to the above embodiments, and is not limited to using a single or separate supply pipe, which is the field to which the present invention pertains. Those skilled in the art can make various modifications and variations from these descriptions. Accordingly, the spirit of the present invention should be understood only by the scope of the claims set forth below, and all equivalents or equivalent modifications thereof will be said to fall within the scope of the spirit of the present invention.

1: Fluid 2: Gas
20: drone 21: housing body
100: ground supply unit 110: fluid pump
120: pneumatic pump 130: mixer
140: hose 141: winding roll
150: ground control unit 151: control panel
152: remote control 161: bypass piping
162: Second fluid storage tank 170: Communication line
200: drone supply unit 201: body housing
210: hose attachment and detachment part 211: solenoid valve
212: quick coupler 213: internal piping
220: separating reservoir 221: fluid reservoir
222: gas storage tank 223: water hammer prevention unit
230: spray nozzle 240: drone control
250: drone pump 251: electric valve
252: flow switch 260: lighting device
v1-v4: Open / close valve cv1-cv3: Check valve
pc1, pc2: Pressure sensor M1-M3: Motor
LC: Low water level sensor MC: Medium water level sensor
HC: High water level sensor

Claims (11)

It is mounted on a vehicle for high-pressure sprinkling or quarantine or firefighting, and is provided with a fluid pump 110, a pneumatic pump 120, and a mixer 130 to pressurize and mix the fluid and gas, and then connect a hose to the output terminal of the mixer 130. By connecting 140), the mixed fluid in which the fluid and gas are mixed is supplied to the upper part through the hose 140 so that the upward force of the gas in the hose 140 acts on the mixed fluid moving inside the hose to load the hose. Ground supply unit 100 to offset the constraints of movement of the drone by the reduction;
It is mounted on the drone 20, the end of the hose 140 of the ground supply unit 100 is provided with a hose detachable portion 210 is detachable, provided with a separate storage tank 220 for separating and storing fluid and gas 220 The mixed fluid supplied from the above ground supply unit 100 is supplied through a hose 140 to separate and store the fluid and gas separately, and each fluid and gas in the separation storage tank 220 is simultaneously fine through the injection nozzle 230 Drone injection system using a mixed fluid, characterized in that comprises a; drone supply unit 200 for injection. The method of claim 1, wherein the ground supply unit 100,
A fluid pump 110 that pressurizes the fluid and discharges it into a pipe;
A pneumatic pump 120 that pressurizes the gas and discharges it into a pipe;
A mixer 130 connected to the fluid pump 110 and the pneumatic pump 120 through piping, and mixing fluid and gas discharged from each pump at a constant rate;
A hose 140 having one end connected to the output terminal of the mixer 130 and the other end detachably connected to or detached from the hose detachable portion 210 of the drone supply unit 200;
It is installed on the pipe between the fluid pump 110 and the mixer 130, and between the pneumatic pump 120 and the mixer 130, the operation is controlled by the ground control unit 150, the fluid pump 110 A first opening / closing valve (v1) and a second opening / closing valve (v2) for intermittently controlling the fluid flow between the and the mixer (130) and the gas flow between the pneumatic pump (120) and the mixer (130);
It is installed on the pipe between the first opening and closing valve (v1) and the fluid pump 110, and between the second opening and closing valve (v2) and the pneumatic pump 120, respectively, the fluid pump (1) in the first opening and closing valve (v1) 110) a first check valve (cv1) and a second check valve (cv2) to block the fluid flow to the side and the gas flow from the second opening / closing valve (v2) to the pneumatic pump (120), respectively;
The first pressure sensor (pc1) and the second pressure sensor (pc2) to detect the different pressure values in the pipe between the first check valve (cv1) and the first opening and closing valve (v1) to the ground control unit 150 ;
The communication line 170 is connected to the drone control unit 240 of the drone supply unit 200 so as to be able to communicate and supply power, a control panel 151 for direct control of the user, and a remote controller for remote control of the user ( The ground control unit 150 is provided to control the operation of each of the pump, each on-off valve and the drone control unit in accordance with the user's manipulation through the control panel 151 or the remote controller 152 and the detection signals of each sensor. Including,
Under the control of the ground control unit 150 according to the user's operation and the detection signal of each sensor, the operation of each pump and each on-off valve is controlled as a whole to supply the mixed fluid in which the fluid and gas are mixed to the upper part through the hose 140. Drone injection system using a mixed fluid, characterized in that configured to be. According to claim 1, The drone supply unit 200,
A hose detachable portion 210 to which a terminal end of the hose 140 of the ground supply portion 100 is detached;
The fluid and gas are separately stored in the fluid storage tank 221 and the gas storage tank 222, and a plurality of water level sensors are provided to check the low water level (LC), the medium water level (MC), and the high water level (HC) in the storage tank, respectively, and drone. Separate storage tank 220 to deliver to the control unit 240;
An injection nozzle (230) for finely spraying the fluid and gas supplied through the pipes in the separate storage tank (220);
A third check valve (cv3) installed on a pipe between the hose detachable part 210 and the separating reservoir 220 to block fluid flow from the separating reservoir 220 to the hose detachable part 210 side;
It is installed on the pipe between the gas storage tank 222 and the injection nozzle 230 of the separation storage tank 220, the operation is controlled by the drone control unit 240 between the gas storage tank 222 and the injection nozzle 230 It includes; a third opening and closing valve (v3) to regulate the flow of air or gas;
The separate storage tank 220,
A drone pump 250 for pressurizing and discharging the fluid supplied to the injection nozzle 230 is connected to a pipe connected from the fluid storage tank 221 to the injection nozzle 230,
It is connected to the ground control unit 150 of the ground supply unit 100 through communication line 170 to enable communication and power supply, and the user through the control panel 151 or remote controller 152 of the ground control unit 150. With a drone control unit 240 for controlling the operation of the drone pump 250 and the third opening and closing valve (v3) in accordance with the operation and the detection signal of each sensor;
It is configured to receive the mixed fluid supplied from the ground supply unit 100 through the hose 140 to separately store and store the fluid and gas, and to supply the fluid and gas of the separation storage tank 220 to the injection nozzle 230, respectively. Drone injection system using a mixed fluid, characterized in that. The method of claim 2, wherein the ground supply unit 100,
The first opening / closing valve (v1) and the first check valve (cv1) form a bypass pipe (161) that branches off from the installed pipe, and a second fluid storage tank (162) at the end of the bypass pipe (161) Equipped,
The ground control unit 150 controls to immediately open the first opening / closing valve v1 when the hose 140 is detached from the drone supply unit 200,
It is characterized in that the fluid in the piping is supplied to the second fluid storage tank 162 through the bypass piping 161 to prevent external leakage of the fluid and to reduce the weight of the hose so that the hose is easily wound around the winding roll. Drone injection system using mixed fluid. The method of claim 2, wherein the hose 140,
Drone injection system using a mixed fluid, characterized in that installed to be automatically wound or unwound by the winding roll (141). According to claim 3, The hose detachable portion 210,
A quick coupler 212 that is quickly and directly coupled to the hose 140;
Drone injection system using a mixed fluid, characterized in that comprises a; solenoid valve 211 driven by the drone control unit 240 to push the quick coupler (212). The method of claim 3, wherein the separation reservoir 220,
The fluid storage tank 221 is installed at the lower end and the gas storage tank 222 is installed at the upper end, so that the gas storage tank 222 installed at the upper end is configured to prevent water hammering in the separation storage tank 220. Drone injection system used. delete The method of claim 3, wherein the separation reservoir 220,
A drone injection system using a mixed fluid, characterized in that a water hammer prevention unit (223) for preventing water hammering due to a sudden pressure change inside the storage tank during the injection of fluid and gas from the injection nozzle (230) is installed at the top. According to claim 3, The injection nozzle 230,
Drone injection system using a mixed fluid, characterized in that it consists of a dual-fluid nozzle that atomizes and finely atomizes the fluid by mixing and dispersing due to their collisions. According to claim 3, The drone supply unit 200,
It is installed on one side of the housing body 21 or the injection nozzle 230 of the drone 20, and is lit or flashed by the drone control unit 240 to indicate the flight position of the drone 20 or fine from the injection nozzle 230 Drone injection system using a mixed fluid, characterized in that further comprises; illumination device 260 for generating a diffuse reflection of the fluid by irradiating the injected fluid with illumination.

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