KR20200105555A - Drones equipped with air cleaning equipment for air pollutant removal for indoor air quality management - Google Patents

Abstract

The proper level maintenance and management of indoor air quality are important, but currently installed ventilation devices and air cleaners have limits. Accordingly, a flying air cleaner capable of finding air pollutants to fly everywhere and remove the air pollutants is needed. The present invention takes care of most payloads by the buoyancy of a helium balloon and takes care of approximately 5% of lift by a propeller to operate a drone equipped with an air cleaning means for approximately two hours. Flying is difficult outdoors due to the effect of wind, but direction changes and vertical movements are possible if operated indoors by approximately 5% of propeller power. A balloon is fixed on the lower end of one drone or propellers (or drone modules) are installed on the circumference of the balloon to be constructed as a quadcopter, a hexacopter, and an octocopter. In this case, flight time can be theoretically extended by 20-fold in comparison to an ordinary drone. Even if the drone (+ helium balloon + air cleaning device) falls due to an abnormal situation while flying, the drone is protected by the buffer effect (weight, colliding speed, and elasticity) of the helium balloon like an airbag, and people and facilities below on the ground are protected from the collision. If a docking station of the present invention is installed indoors, the air cleaning drone can automatically fly to maintain and manage indoor air quality within a regulation value.

Description

Drones equipped with air cleaning equipment for air pollutant removal for indoor air quality management

To live healthy, it is important to eat good food and drink good water and good air. Since 80% of the substances a person consumes per day is air and more than 80% of the time per day lives indoors, indoor air pollution can cause abnormal symptoms such as dry matter syndrome. Indoor space pollutants include fine dust (PM-10), carbon dioxide, formaldehyde, total airborne bacteria, carbon monoxide, nitrogen dioxide, radon, volatile organic compounds (VOC), asbestos, and ozone. PM-10 floating in the air, commonly called fine dust, is easily absorbed into the lungs and has a high probability of reaching the alveoli. Most of them are caused by air pollution, combustion of fuel, smoking, and friction. In multi-use facilities (underground shopping centers, kindergartens, medical institutions, performance halls, gymnasiums, etc.) used by an unspecified number of people, indoor air quality must be kept clean. In order to maintain the indoor air quality of facilities used by multiple users below the regulation level, and to prevent environmental hazards, the indoor air quality management law and enforcement rules were also established. The best way to keep the indoor air comfortable is to ventilate it regularly. However, there is a problem in that large facilities or facilities with high space cannot be sufficiently ventilated with the building's own ventilation system.

Drones use a plurality of relatively small propellers to obtain lift and adjust the lift generated from each propeller to move forward, backward, and change direction, so flight efficiency is not good when moving forward, backward, left and right. In other words, drones are significantly inferior in flight efficiency compared to helicopters, and it is difficult to install means (drone parachute) to protect the ground in case of a fall, making it difficult to develop as a means of transporting large payloads. However, drones are expected to develop into multifunctional means equipped with various mission equipment in the future, as drones can easily implement various flight modes by controlling the rotational speed of each rotor propeller and can easily fly automatically. In other words, it is a well-known future that drones will be developed in the direction of convenient and easy movement without distinguishing between land, water, and sky by boarding humans (PAV: Personal Air Vehicle). In order to increase the payload and flight time of drones, a lot of research will be conducted on ultra-light motors with high torque, high-efficiency electric energy storage and generation devices, and methods of securing additional lift (other than hybrid drones).

A ventilation system that must be installed basically and an air purifier are installed in large facilities, but these devices have limitations in removing pollutants, especially fine dust, from large indoor spaces as they rely on fan air intake and convection. . It is a well-known fact that when lights are illuminated in large factories, gymnasiums, movie theaters, etc., many suspended matters float in the air. An object of the present invention is to provide an active means of removing pollutants by flying and flying in a given space (especially a large indoor space) by combining a drone capable of hovering with an air cleaning device.

Indoor air purifiers (air purifiers) inhale contaminated air with a fan (FAN) and collect fine dust or bacteria up to about 0.01㎛ by a filter to deodorize body odor or cigarette odor. Filtration is a process of physically separating solid particles from a liquid or gas using the difference in particle size, and adsorption is the adhesion of particles of gas or solution to the surface of the solid. The size of the particles that can be removed varies depending on the type of filter, but it can be said that the more fine particles are filtered, the better the filter's ability. As the air passes through these filters, solid particles get caught in the filter and separate. When dust is removed by a filter method, a fiber filter is usually used. An electric dust collector that collects dust by charging dust by high-pressure discharge is also used. When a high voltage of thousands of volts is applied, electrons are generated in the electrode itself, or electrons are generated in the gas around the electrode, forming a plasma around the electrode. When electrons made in this way are attached to particles in the air, the particles are negatively charged, and the charged dust particles move to the dust collecting plate (+) with opposite charges by electrostatic attraction and are stuck and removed. Activated carbon filters are used to remove the causes of various odors. Activated carbon is a porous material with millions of extremely fine pores, and 1g of activated carbon has a surface area of 500㎡ or more, so that it effectively adsorbs gases or liquids.

With the development of drone-related technologies, drones are gradually becoming smaller. If you wear it on your wrist and spread it out, it is evolving to a use of taking a selfie function by connecting it with a smartphone and wireless LAN while flying within a certain radius. In addition to the control device that finely adjusts the plurality of propellers that generate lift using the information of the drone's inertial sensor, it is being developed to support high-difficulty flight as well as automatic collision avoidance by using a 2GHz class high-performance processor. However, there is a limit to the conventional motor efficiency and battery capacity (energy density) to increase the short drone flight time of around 20 minutes. With current technology, a medium-sized drone with a diameter of 100 cm or less is required to mount an air purifier weighing 2kg, and the flight time is limited to within 10 minutes due to the weight of the air purifier (+ battery power consumption). Aircraft generate lift (Bernoulli's theorem) by fluid flow around the wing and fuselage, and helicopters generate lift by rotating a rotor of several meters at high speed, but drones use propellers with a diameter of around 30 cm, so lift and efficiency are reduced. It is relatively low, and there is a limit to increasing the flight time. If the current battery capacity (lithium ion battery energy density 200W/kg) is increased, the battery weight also increases, so the flight time converges to around 30 minutes.

Mankind first realized their dream of flying through hot air balloons and airships. Hot air balloons use Charles' law, which states that as the temperature increases, the volume of the gas expands and the density decreases. Airships mainly apply a method of gaining buoyancy by filling gases less than air density, such as helium and hydrogen. Helium is the second most dense material we know, so the mass of 1 liter of helium is 0.1768 g when the air pressure is 1 atmosphere and the temperature is 0℃. On the other hand, the density of nitrogen and acid, which occupies most of the Earth's atmosphere, is 1.251g for 1 liter of nitrogen and 1.429g for oxygen. Therefore, a helium balloon placed in the atmosphere (air density 1.275g/ℓ) generates buoyancy, and a balloon with a radius of 30cm can lift 10g and a balloon with a radius of 100cm can lift 4.2kg. A 2m x 2m x 2m cuboid can lift 8kg, and a 4m x 4m x 2m cuboid helium device can lift 32kg. In the case of low-speed drones, there is no means to generate additional lift, but if a helium device is attached as an auxiliary, additional buoyancy can be secured, reducing the lift in charge of the propeller of the drone (lowering the number of propeller rotations) and reducing flight time. Can be increased.

The present invention is to provide a drone equipped with an air cleaning device for removing air pollutants to ensure indoor air quality management in a multi-use facility. Even with up to several kilograms of battery-operated air cleaning equipment installed, it should be possible to ensure flight time to remove airborne pollutants for several hours. In drones, the convergence of automatic docking station technology, buoyancy assist technology, battery technology, and air cleaning technology is required.

Drones are easy to take off and land vertically and hover, unlike classic means of flight such as airplanes. Unlike helicopters and airplanes, drones are very easy to control automatically, so that they use a smartphone as a drone remote control device. As fine dust emerges as a social issue, maintaining and managing an appropriate level of indoor air quality is very important, but currently there are limitations with ventilation systems and air purifiers. Therefore, it needs a flying drone-type air purifier that can fly away and remove air pollutants. However, in order to make a drone equipped with an air purification device for removing air pollutants for indoor air quality management, the following problems must be solved.

First, a drone equipped with an air purification device must be operated for several hours in order to remove air pollutants for wide indoor air quality management. As the weight (payload) carried by the drone increases, the flight time becomes shorter. For example, the Chinese DJI company's agricultural drone MG-15 (motor shaft distance 150cm) shortens flight time to 22 minutes for 13.7kg including batteries and 9 minutes for 23.8kg loaded with pesticides. The air purifier consumes additional power with an increase in weight, resulting in shorter flight times. It takes 2 to 3 hours to charge the battery. In order to purify the indoor air of a multi-use facility, there is a problem in that the flight time of a drone equipped with an air purification device must be significantly increased (20 minutes -> 2 hours or more).

Second, even when an abnormality occurs in a drone that purifies the indoor air of a multi-use facility and falls during flight, it should be configured so that there is no damage to the people, objects, and drones below. In the case of a general drone, there is a high possibility that the drone may be damaged or injured people on the ground by colliding with people and buildings on the ground when it falls. Some countries require a parachute that can be operated in case of a fall, but there is a problem that the weight increases due to a drone parachute. Indoor air cleaning drones fly at relatively low altitudes, so there are limits to parachuting that require some time to unfold. Therefore, a drone equipped with an air purification system needs additional means to protect it when colliding with the ground or with other flying objects.

Third, it is impossible for a person to manually control a drone equipped with air purification equipment for several hours to remove indoor air pollutants. After waiting at the docking station, when the surrounding air pollution becomes severe, it automatically moves to the contaminated area to operate the air purifier, and when the mission is finished, the process of charging and waiting by returning to the docking station should be performed automatically.

Fourth, household air purifiers of 100W or less are sometimes operated 24 hours a day. Since indoor air is polluted by various causes, technical problems must be solved so that a drone equipped with an air purification device can be provided to operate 24 hours a day.

The present invention proposes a payload sharing model that combines a drone with various types of balloons filled with a light gas such as helium as a basic means to solve the above problem. Helium is the second most dense material we know, so the mass of 1 liter of helium is 0.1768 g when the air pressure is 1 atmosphere and the temperature is 0℃. Therefore, a helium balloon placed in the atmosphere (air density 1.275g/ℓ) generates buoyancy, and it can lift 8kg with a balloon balloon with a radius of 4.2kg and a 2m x 2m x 2m rectangular parallelepiped. For example, the Chinese DJI company's agricultural drone MG-15 (motor shaft distance 150cm) is 22 minutes for 13.7kg with battery and 9 minutes for 23.8kg with pesticides, but if the weight is reduced to 5kg with a helium device Flight time may be extended to 50 minutes or more.

First, in order to operate a drone equipped with air purification equipment for several hours, it is configured to take charge of the payload most of the buoyancy of the helium balloon and generate about 5% of the lift by the propeller. In this case, the flight time can be extended by 20 times or so, so the flight time of 2 to 3 hours or more can be basically secured. In order to secure a lot of buoyancy, the size of the balloon balloon is increased, so the size of the buoyancy is determined in consideration of the size of the indoor space and flight time. It is difficult to fly outdoors due to the influence of the wind, but when operated indoors, there is no wind, so it is possible to change direction and move up and down with about 5% propeller power. A balloon can be fixed to one drone, or each propeller can be installed around the circumference of the balloon to form a quadropter, hexacopter, or octacopter.

Second, in order to prevent damage to people, objects, and drones even when an abnormality occurs in a drone that purifies the indoor air of a multi-use facility and falls during flight, a helium balloon device is configured to be used like an airbag. Even if a heavy battery is installed at the bottom of the helium balloon and it stops working, the part where the drone or propeller is installed is located on the upper surface (higher than the height of the person), and the part where the battery is installed is located downward so that the propeller impact is directly affected. Avoid being applied.

Third, in order to remove indoor air pollutants, it is necessary to automate the operation of a drone equipped with an air purification device for several hours. After waiting at the docking station, when the surrounding air pollution becomes severe, it automatically moves to the contaminated area to operate the air purifier, and when the mission is finished, the process of charging and waiting by returning to the docking station should be performed automatically. In indoor drones, the method of tracking the location of a docking station is to send an IR beam from the docking station and track the IR beam with the drone's camera. It is configured to automatically charge the battery when landing (connecting) to the docking station.

Fourth, household air purifiers of 100W or less are sometimes operated 24 hours a day. A method of installing a plurality of docking stations at a specific location on the ceiling of an indoor space may be proposed. While waiting to move to multiple docking stations (propeller operation is OFF), the air purifier is operated in the corresponding area for a certain period of time. In this case, since the drone propeller is operated only while moving between docking stations, it can be configured as a drone without a helium mechanism. You need the skills to land or dock correctly at the docking station.

The present invention is in charge of most payloads by buoyancy of the helium balloon device and propellers with a lift force of about 5% so that a drone equipped with an air purification device can be operated for about 2 hours to remove air pollutants indoors, especially in multi-use facilities. It was configured to be in charge of. It is difficult to fly outdoors due to the influence of the wind, but when operated indoors without wind, it is possible to change direction and move up and down with about 5% propeller power. A balloon device can be fixed at the bottom of one drone, or each propeller (or drone module) can be installed around the circumference of the balloon device to form a quadropter, hexacopter, or octacopter. In this case, the flight time can theoretically be extended by 20 times compared to general drones, and the following effects are expected.

First, in the case of securing auxiliary buoyancy by mounting a helium device on a drone, as in the present invention, even if a lift is generated with a relatively small propeller torque (diameter, rotational speed), it is possible to extend the flight time by reducing battery power consumption by a sufficient amount. By integrating a drone, a helium device, and an air purification device, there is an effect of securing sufficient flight time to fly away and remove pollutants from a large indoor space.

Second, the present invention protects the drone with the cushioning effect (weight, collision speed, collision time, elasticity) of the helium device like an airbag even if the drone (+ helium device + air purifier) falls due to an abnormal situation It has the effect of protecting people and facilities of

Third, if you shine a light in a theater or a large indoor space, you can see a lot of dust floating. There are limitations in purifying air with ventilation systems or air purifiers in large indoor facilities (including passageways) that rely on air convection and ventilation. The aerial cleaning drone is configured to fly, automatically dock, and charge the battery around the docking station. By installing a docking station indoors, the air cleaning drone can be configured to automatically fly and maintain indoor air quality within the regulated values. It has the effect of protecting people from contamination of indoor spaces.

Fourth, if a plurality of docking stations are installed in consideration of the flow of air in indoor facilities, and the drone moves between docking stations, the drone propeller is stopped after docking, and the air purifier is operated. As a system can also be provided, there is an effect that contributes to the improvement of indoor air quality.

Fig. 1 is an image diagram of a helium device made in various forms that realized mankind's first flying dream.
FIG. 2 is an image diagram of a Swiss AEROTAIN's advertising balloon drone'Skye' that can fly within 3 hours by attaching a drone propeller to a helium device.
Figure 3 is a table showing the air quality regulation values for each indoor facility specified in the Indoor Air Quality Management Act for Multi-Use Facilities.
4 is a diagram showing the configuration of a public cleaning drone equipped with a second buoyancy mechanism for generating buoyancy according to the present invention.
5 is a system configuration diagram of a aerial cleaning drone equipped with a second buoyancy mechanism for generating buoyancy according to the present invention.
6 is a block diagram of a public cleaning drone capable of operating 24 hours based on a plurality of docking stations of the present invention

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

In order to implement the aerial cleaning drone of the present invention, a payload sharing model that combines the drone with various types of balloons filled with light gas such as helium is proposed. When the air pressure is 1 atmosphere and the temperature is 0℃, the mass of 1 liter of helium is 0.1768g. Therefore, a helium balloon placed in the atmosphere (air density 1.275g/ℓ) generates buoyancy that floats upward, and a balloon with a radius of 100cm can lift 4.2kg. For example, the Chinese DJI company's agricultural drone MG-15 (motor shaft distance 150cm) is 22 minutes for 13.7kg with battery and 9 minutes for 23.8kg with pesticides, but if the weight is reduced to 5kg with a helium device Flight time may be extended to 50 minutes or more. In order to remove air pollutants, drones equipped with air cleaning devices must be able to operate for several hours. The helium balloon balloon is configured to take charge of most of the payload by buoyancy and generate about 5% of the lift by the propeller. In this case, the flight time can be extended by 20 times or so, so the flight time of 1 to 2 hours or more can be basically secured. In order to secure a lot of buoyancy, the size of the balloon balloon increases, so the size of the balloon (2~3m in diameter) is determined in consideration of the size of the indoor space to be cleaned in the air and the flight time. It is difficult to fly outdoors due to the influence of the wind, but if it is operated indoors, it is possible to change the incense direction and move up and down with about 5% propeller power. A balloon can be fixed to one drone, or each propeller can be installed around the circumference of the balloon to form a quadropter, hexacopter, or octacopter. In order to remove indoor air pollutants with air cleaning drones, it is necessary to automate the operation of drones equipped with air cleaning equipment for several hours. After waiting at the docking station, when the surrounding air pollution becomes severe, it automatically moves to the contaminated area to operate the air purifier, and when the mission is finished, the process of charging and waiting by returning to the docking station should be performed automatically.

Fig. 1 is an image diagram of a helium device made in various forms that realized mankind's first flying dream. Before the first successful flight by the Wright brothers along with the principle of generating lift by Bernoulli, humans used a balloon as a means of gaining buoyancy to fly in the sky.

FIG. 2 is an image diagram of a Swiss AEROTAIN's advertising balloon drone'Skye' that can fly within 3 hours by attaching a drone propeller to a helium device. A small airship is being used as a billboard, but Aerotian's announcement to use a balloon-type drone for advertising is'Skye'.'Skye' is a balloon filled with helium gas, which has a diameter of 3m and has a propeller around it and rotates in a specific direction. Or let it fly. Technically, it is known that it is not easy to make'Skye' fly. It can fly for about 3 hours on a single charge.

Figure 3 is a table showing the air quality regulation values for each indoor facility specified in the Indoor Air Quality Management Act for Multi-Use Facilities. The Indoor Air Quality Management Act is a law that stipulates matters to protect public health and prevent environmental harm by properly maintaining and managing indoor air quality in facilities and new apartments used by multiple people. In the case of management that does not meet the maintenance standards, an improvement order may be issued by a fixed period. Anyone who fails to comply with this will be punished by imprisonment for up to one year or a fine of up to 10 million won.

4 is a diagram showing the configuration of a public cleaning drone equipped with a second buoyancy mechanism for generating buoyancy according to the present invention. A drone flying in the air and removing air pollutants includes: a first lift control means (1) based on lift generated while a propeller of the drone rotor rotates; It comprises a second buoyancy means (2) in the form of a balloon filled with a gas that is lighter than air, and an air purification means (4) for air cleaning. Aerial cleaning drones have the advantage of flying by moving every corner in search of dust, but sufficient flight time must be secured for air cleaning. If the second buoyancy device is mainly filled with helium and takes up 95% of the total payload, it is possible to secure a flight time of about 20 times that of a propeller-type drone. Although it can be configured to attach the drone to the top of the second buoyancy device, it is also possible to install 4, 6, and 6 propeller rocker shafts along the circumference of the second buoyancy device, assuming the second buoyancy device is the drone body. That is, the second buoyancy means (9), the first lift force control means (1) by the lift generated while the propeller of the drone rotor rotates, and the first motor and propeller means (5) by the lift generated while the propeller rotates, Second motor and propeller means (6), third motor and propeller means (7); Means for installing a plurality of nth motors and propeller means (8); It is configured to include an air purification means 10 for public cleaning. The second buoyancy means 2 and 9 are configured to selectively fill hot air or gas lighter than air. The buoyancy of the second buoyancy means (2, 9) is configured to be lower than the total weight of the aerial cleaning drone, so that it does not rise unless the first lift control means (1) is operated. At the bottom of the second buoyancy means (2, 9) filled with hot air or gas that is lighter than air, a heavy center of gravity means (3) such as a battery is installed to move the center of gravity of the aerial cleaning drone in a downward direction. The center of gravity means (3) is directed toward the ground so that the rotating propeller does not touch people.

5 is a system configuration diagram of a aerial cleaning drone equipped with a second buoyancy mechanism for generating buoyancy according to the present invention. That is, control means 13 including an inertial sensor and a flight control computer; Fixing means 15 for installing the drone rotor motor 12 to the second buoyancy means 17; Air purification device (16) means fixed to the second buoyancy means (17); Optionally, indoor distance measuring sensor means 19 for indoor autonomous flight; Docking station location tracking means 18 for tracking the location of the docking station 20 with radio waves, light, or video for charging and docking; When docking, the battery charging terminal 14 and the battery connection terminal of the docking station 20 are contacted to charge the battery. At this time, the air cleaning drone equipped with the air purification device 16 is configured to dock with the docking station 20 installed on the ceiling by installing the upper docking mechanism 21 at the top.

6 is a block diagram of a public cleaning drone capable of operating 24 hours based on a plurality of docking stations of the present invention. In a drone flying in the air and removing air pollutants, a plurality of first docking stations 21, 2 docking stations 2, and n-th docking stations 23 are installed in an indoor space to clean the drone 27 , 26) can be configured to operate the air purifier while changing the docking station. The aerial cleaning drone 26 equipped with the air purification device 25 is configured to dock with the docking stations 21, 22, and 23 on the ceiling by installing an upper docking mechanism 24 at the top. An air cleaning drone 26 equipped with an air purification device 25; Means for docking with the docking station (21, 22, 23) of the ceiling by installing the upper docking mechanism (24) at the top; Means for stopping the motor rotation of the aerial cleaning drone 26; It consists of means for operating the air purification device (25).

1: first lift control means 2: second buoyancy means
3: center of gravity means 4: air purification means
5: first motor and propeller 6: second motor and propeller
7: third motor and propeller 8: nth motor and propeller
9: second buoyancy means 10: air purification means
11: propeller 12: drone rotor motor
13: control means 14: battery
15: fixing means 16: air purification device
17: second buoyancy means 18: docking station location tracking means
19: indoor distance measurement sensor 20: docking station
21: first docking station 22: second docking station
23: nth docking station 24: upper docking mechanism
25: air purification device 26: aerial cleaning drone
27: Helium device-based aerial cleaning drone

Claims (10)

In drones that fly in the air and remove air pollutants,
First lift control means (1) by lift generated while the propeller of the drone rotor rotates;
Including a second buoyancy means (2) in the form of a balloon filled with a gas lighter than air,
A drone for air cleaning equipped with a second buoyancy means, characterized in that it comprises an air cleaning means (4) for air cleaning
The method of claim 1,
As a first lift control means (1) by lift generated while the propeller of the drone rotor rotates;
A first motor and propeller means (5), a second motor and propeller means (6), a third motor and propeller means (7) as means for obtaining lift generated while the propeller rotates; Means for installing a plurality of nth motors and propeller means (8);
Including a second buoyancy means (9) in the form of a balloon capable of filling or filling a gas lighter than air,
A drone for air cleaning equipped with a second buoyancy means, characterized in that it comprises an air cleaning means (10) for air cleaning
The method of claim 1,
The second buoyancy means (2,9)
A drone for air cleaning equipped with a second buoyancy means, characterized in that it is configured to selectively fill hot air or gas lighter than air.
The method of claim 1,
The buoyancy of the second buoyancy means (2,9) is configured to be lower than the total weight of the aerial cleaning drone.
A drone for aerial cleaning equipped with a second buoyancy means, characterized in that it does not float unless the first lift control means (1) is operated
The method of claim 1,
At the bottom of the second buoyancy means (2, 9) filled with hot air or gas lighter than air,
A drone for aerial cleaning with a second buoyancy means, characterized in that the center of gravity of the drone for aerial cleaning is moved downward by installing a heavy center of gravity means (3) such as a battery
The method of claim 1,
Control means 13 including an inertial sensor and a flight control computer;
Fixing means 15 for installing the drone rotor motor 12 to the second buoyancy means 17;
Air purification device (16) means fixed to the second buoyancy means (17);
Optionally, indoor distance measuring sensor means 19 for indoor autonomous flight;
Docking station location tracking means 18 for tracking the location of the docking station 20 with radio waves, light, or video for charging and docking;
A drone for aerial cleaning equipped with a second buoyancy means, characterized in that it consists of a means for charging the battery by contacting the battery charging terminal 14 with the battery connection terminal of the docking station 20 during docking.
The method of claim 6,
The aerial cleaning drone equipped with the air purification device (16)
A drone for aerial cleaning with an upper docking mechanism, characterized in that the upper docking mechanism 21 is installed at the top to dock with the docking station 20 installed on the ceiling
In drones that fly in the air and remove air pollutants,
A plurality of first docking stations (21), second docking stations (2), and n-th docking stations (23) are installed in the indoor space to operate the air cleaning system while changing docking stations. A drone system for aerial cleaning based on multiple docking stations featuring Sikkim
The method of claim 7,
The aerial cleaning drone 26 equipped with the air purification device 25
A drone for aerial cleaning based on a plurality of docking stations, characterized in that it is configured to dock with the ceiling docking stations (21, 22, 23) by installing an upper docking mechanism (24) at the top.
The method of claim 7,
An air cleaning drone 26 equipped with an air purification device 25;
Means for docking with the docking station (21, 22, 23) of the ceiling by installing the upper docking mechanism (24) at the top;
After docking
Means for stopping the rotation of the motor propeller of the aerial cleaning drone 26;
A drone for aerial cleaning based on a plurality of docking stations, characterized in that it consists of a means for operating the air purification device 25

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