WO2021174679A1

WO2021174679A1 - Unmanned vehicle and air purification method

Info

Publication number: WO2021174679A1
Application number: PCT/CN2020/091162
Authority: WO
Inventors: 王华凯
Original assignee: 新石器慧通（北京）科技有限公司
Priority date: 2020-03-03
Filing date: 2020-05-20
Publication date: 2021-09-10
Also published as: CN111251840A

Abstract

An unmanned vehicle, comprising a vehicle body (110), an air inlet device (120), an air treatment device (130), and an air discharging device (140). The air inlet device (120), the air treatment device (130), and the air discharging device (140) are all provided on the vehicle body (110). The air inlet device (120) is communicated with the exterior of the unmanned vehicle and used for sucking air outside the unmanned vehicle. The air treatment device (130) is communicated with the air inlet device (120) and used for filtering suspended particles and bacteria and viruses in the air provided by the air inlet device (120); the air discharging device (140) is communicated with the air treatment device (130) and used for discharging air provided by the air treatment device (130). Also provided is an air purification method.

Description

Unmanned vehicles and air purification methods

This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office with an application number of 202010139341.2 on March 3, 2020, and the entire content of the above application is incorporated into this disclosure by reference.

Technical field

The embodiments of the present application relate to the field of unmanned driving technology, for example, to an unmanned vehicle and an air purification method.

Background technique

With the spread of the new type of coronavirus, the epidemic of new type of coronavirus pneumonia is currently very severe, entering the outbreak stage in February 2020. For relatively closed spaces with polluted air, there are a large number of suspended particles or suspended bacteria and viruses in the air, which can cause respiratory diseases, and even accelerate the prevalence of aerosol infectious diseases in severe cases. For temporarily renovated hospitals, the inability to install ventilation and disinfection systems in time will also lead to respiratory diseases, and even accelerate the prevalence of aerosol infectious diseases in severe cases.

Summary of the invention

The present application provides an unmanned vehicle and an air purification method, so as to filter suspended particles and bacteria and viruses in the air on the basis of avoiding the infection of diseases by bacteria and viruses in the air, thereby improving air quality.

In the first aspect, an embodiment of the present application provides an unmanned vehicle, including a vehicle body, an air intake device, an air treatment device, and an exhaust device; the intake device, the air treatment device, and the exhaust device are all Set on the vehicle body;

The air intake device communicates with the outside of the unmanned vehicle, and the air intake device is configured to suck in air from the outside of the unmanned vehicle; the air processing device is connected through the air intake device, and the air The processing device is configured to filter suspended particles and bacterial viruses on the air provided by the air intake device; the exhaust device is in a through connection with the air processing device, and the exhaust device is configured to exhaust the air processing device. Air provided by the device.

In the second aspect, an embodiment of the present application also provides an air purification method, which is implemented using the unmanned vehicle provided in any embodiment of the present application, and is characterized in that it includes:

The air intake device sucks in air outside the unmanned vehicle;

The air processing device filters the air sucked by the air intake device for suspended particles and bacteria and viruses;

The exhaust device exhausts the air filtered by the air treatment device to the outside of the unmanned vehicle.

Description of the drawings

FIG. 1 is a schematic structural diagram of an unmanned vehicle provided by an embodiment of the application;

Figure 2 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application;

FIG. 3 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application;

FIG. 4 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application;

FIG. 5 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application;

FIG. 6 is a schematic flowchart of an air purification method provided by an embodiment of the application.

Detailed ways

The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the application, but not to limit the application. In addition, it should be noted that, for ease of description, the drawings only show a part of the structure related to the present application instead of all of the structure.

Fig. 1 is a schematic structural diagram of an unmanned vehicle provided by an embodiment of the application. As shown in Figure 1, the unmanned vehicle includes a vehicle body 110, an air intake device 120, an air treatment device 130, and an exhaust device 140; the intake device 120, the air treatment device 130 and the exhaust device 140 are all arranged on the vehicle body 110 ; The air intake device 120 is connected to the exterior of the unmanned vehicle for inhaling the air outside the unmanned vehicle; the air processing device 130 is connected through the air intake device 120 for suspending particles and bacteria in the air provided by the air intake device 120 Filtering of viruses; the exhaust device 140 is in a through connection with the air treatment device 130 for exhausting the air provided by the air treatment device 130.

In some embodiments, the vehicle body 110 may include a traveling structure, such as tires, so that the unmanned vehicle can travel. The unmanned vehicle has an automatic driving mode, which can realize automatic driving. The intake device 120, the air treatment device 130 and the exhaust device 140 are arranged on the vehicle body 110, and their relative positions will not change. Therefore, the intake device 120, the air treatment device 130 and the exhaust device 140 can be used in the vicinity of the unmanned vehicle. The air is filtered. When the unmanned vehicle is running, the air intake device 120, the air treatment device 130, and the exhaust device 140 can move with the unmanned vehicle to filter air in different spaces.

The air intake device 120 may have an air inlet for communicating with the outside of the unmanned vehicle. During the operation of the unmanned vehicle, the air intake device 120 can draw in air outside the unmanned vehicle through the air inlet. Exemplarily, the air intake device 120 may include a first fan and a first drive structure, and the first drive structure may drive the first fan to work so that the pressure in the area where the air intake device 120 is located is less than the atmospheric pressure, so that the air intake device 120 The air intake actively sucks in the air outside the unmanned vehicle. For example, the first driving structure may be a motor. The air intake device 120 and the air treatment device 130 can be connected through a pipeline or other methods. After the air intake device 120 sucks in air from the unmanned vehicle, the air can enter the air treatment device 130 through the pipeline. The air processing device 130 can filter the inhaled air by suspended particles and bacteria and viruses, so that the air output by the air processing device 130 is relatively clean and healthy. The air treatment device 130 and the exhaust device 140 may also be connected through a pipeline or the like. The filtered air is output to the exhaust device 140 through the pipeline. The exhaust device 140 may include an exhaust port, and may also include a second fan and a second driving structure. In the same way, the exhaust port can be connected to the exterior of the unmanned vehicle. The second driving structure can drive the second fan to work, blow the filtered air through the second fan, and discharge it to the outside of the unmanned vehicle through the exhaust port. For example, the second driving structure may be a motor. Unmanned vehicles can realize unmanned driving in the process of autonomous driving. Therefore, on the basis of avoiding artificial infection of bacteria and viruses in the air, the air outside the unmanned vehicle is filtered by suspended particles and bacteria and viruses to improve air quality , Thereby reducing the risk of infection due to the presence of bacteria and viruses in the air.

Fig. 2 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application. As shown in Figure 2, the air treatment device 130 includes a suspended particle filter unit 131 and a bacterial virus filter unit 132; the suspended particle filter unit 131 is connected to the air intake device 120, and the bacterial virus filter unit 132 is connected to the suspended particle filter unit 131 and the exhaust unit respectively. The air device 140 is connected through; the suspended particle filter unit 131 is used to filter suspended particles in the air provided by the air intake device, and the bacterial virus filter unit 132 is used to filter bacterial viruses in the air provided by the suspended particle filter unit.

In some embodiments, suspended particles in the air include particles with relatively large diameters such as dust, pollen, and bacteria-carrying particles, as well as PM2.5. PM2.5 refers to particulate matter in the atmosphere with an aerodynamic equivalent diameter of less than or equal to 2.5 microns, also known as lung particulate matter. PM2.5 has a small particle size, is rich in a large amount of toxic and harmful substances, and has a long residence time in the atmosphere and a long transportation distance, so it has a relatively large impact on human health and atmospheric environmental quality. The suspended particle filtering unit 131 performs suspended particle filtering on the air provided by the air intake device 120 to preliminarily purify the air provided by the air intake device 120. In some embodiments, the suspended particle filter unit 131 can also purify harmful gases in the air to further purify the air. For example, the suspended particle filtering unit 131 can filter harmful gases such as formaldehyde, acetaldehyde, alkaline malodorous substances, ammonia, amines, benzene, toluene, and xylene in the air, thereby improving air quality.

The preliminary purified air is input to the bacterial virus filtering unit 132, which can sterilize and disinfect the preliminary purified air, thereby further purifying the air and further improving the air quality.

Fig. 3 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application. As shown in FIG. 3, the difference from FIG. 2 is that the bacterial virus filter unit 132 is connected to the air intake device 120, and the suspended particle filter unit 131 is connected to the bacterial virus filter unit 132 and the exhaust device 140 respectively. At this time, the bacteria and virus filtering unit 132 sterilizes the air provided by the air intake device 120 to achieve filtering of bacteria and viruses, and then through the suspended particle filtering unit 131 to filter the sterilized air with suspended particles to further purify the air , Improve air quality.

Exemplarily, the suspended particle filter unit includes a filter mesh, and the bacterial virus filter unit includes at least one of an ultraviolet generating structure and a HEPA filter mesh greater than or equal to H13.

In some embodiments, when air passes through the filter screen, the filter screen can block suspended particles with a diameter larger than the pore size of the filter screen, thereby achieving filtration of the suspended particles. Optionally, the filter screen can have multiple layers to enhance the filtering effect of the filter screen and fully filter the suspended particles in the air.

It should be noted that the suspended particle filtering unit including the filtering net is only an example. The suspended particle filtering unit may also include other suspended particle filtering structures, such as an anion generating device, which generates an ion current that can absorb positively charged suspended particles in the air, so that the suspended particles continue to accumulate and become heavier, causing them to leave the gas-soluble state. Settling, so as to achieve the effect of filtering suspended particles.

The bacterial virus filtering unit may include an ultraviolet generating structure, which can generate ultraviolet rays. When the ultraviolet rays are irradiated into the air, the ultraviolet rays can kill the bacteria and viruses in the air, thereby achieving the effect of bacterial virus filtering. Bacterial virus filtration unit can include HEPA filter of H13 or higher. HEPA filter includes five materials: PP filter paper, glass fiber, composite PP PET filter paper, meltblown polyester non-woven fabric and meltblown glass fiber, which can filter specific particles. Diameter particles. When the level of the HEPA filter is greater than or equal to H13, the HEPA filter can also filter bacteria and microorganisms, thereby achieving the function of filtering bacteria and viruses. In some embodiments, the bacterial virus filter unit may also include both an ultraviolet generating structure and a HEPA filter greater than or equal to H13, and at the same time filter bacterial viruses in the air, further increasing the effect of the bacterial virus filter unit in filtering bacterial viruses , Purify the air and improve the air quality.

In other embodiments, the bacterial virus filtering unit may further include a photocatalytic structure. _{The TiO 2} single crystal electrode in the photocatalytic structure can decompose water. When air and water pass through the photocatalyst material, a large amount of hydroxide ions OH-, peroxy hydroxy radical HO2, peroxide ions O2-, Hydroperoxide H2O2, etc., these ions are permeated in the air, by destroying the cell membrane of the bacteria in the air, coagulating the protein of the virus, decomposing various organic compounds and some inorganic substances, and removing harmful gases and odors, thereby realizing bacteria and viruses The filtration purifies the air and improves the air quality. The bacterial virus filtration unit may also include an active oxygen generation structure. The active oxygen generation structure can produce quantitative active oxygen, and the strong oxidizing property of quantitative active oxygen enables it to quickly and completely inactivate bacteria, thereby achieving the effect of sterilization and disinfection. In addition, the strong oxidizing properties of quantitative active oxygen make it possible to react with carbonyl (carbon oxygen) and hydrocarbyl (hydrocarbon) compounds such as formaldehyde (HCHO) and benzene (C6H6) to form CO ₂ , H ₂ O, O2, etc. Further purify the toxic gases in the air.

It should be noted that the structure of the bacterial virus filtration unit described above is only an example. The bacterial virus filtration unit of the embodiment of the present application may also include other structures for sterilization and disinfection. In addition, the air treatment device may also include a gas air treatment structure, for example, it may include activated carbon for adsorbing suspended particles and harmful substances in the air. The air treatment device can also include a grafted polymer structure, which adsorbs suspended particles and harmful substances in the air to its own carrier, and generates a chemical reaction. By changing the molecular structure of suspended particles and harmful substances in the air, the suspended particles and harmful substances can be decomposed. Material, so as to achieve the purpose of powerful and rapid air purification.

Fig. 4 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application. As shown in FIG. 4, the vehicle body 110 includes a vehicle compartment 111; the air intake device 120 and the exhaust device 140 are respectively arranged on different side walls of the vehicle compartment 111.

In some embodiments, when the air intake device 120 and the exhaust device 140 are respectively arranged on different side walls of the compartment 111, the air taken in by the air intake device 120 outside the unmanned vehicle and the purified air discharged by the exhaust device 140 can be reduced. The degree of air mixing reduces the probability of unmanned vehicles purifying the purified air again and increases the efficiency of unmanned vehicles to purify air. In addition, the air intake device 120 and the exhaust device 140 are respectively arranged on different side walls of the compartment 111, which can also increase the space range of the unmanned vehicle to purify air, and further increase the efficiency of the unmanned vehicle to purify air.

In some embodiments, the first side wall of the compartment 111 where the air intake device 120 is located is opposite to the second side wall of the compartment 111 where the exhaust device 140 is located. At this time, the degree of mixing of the air outside the unmanned vehicle sucked by the air intake device 120 and the purified air discharged from the exhaust device 140 can be minimized, and the probability of the unmanned vehicle purifying the purified air again is minimized. Increased the efficiency of unmanned vehicles to purify the air.

In some embodiments, when the air intake device 120 and the exhaust device 140 are on different side walls, the air intake device 120 and the exhaust device 140 may also be arranged at different heights of the side walls, and the air intake device 120 sucks in air at this time. The density of the air is different from the density of the air discharged by the exhaust device 140, which is more conducive to reducing the mixing of the air sucked in by the air intake device 120 and the purified air discharged from the exhaust device 140, which further reduces the unmanned vehicle purifying the purified air again. The probability of increasing the efficiency of unmanned vehicles to purify the air.

It should be noted that FIG. 4 only exemplarily shows that the first side wall of the compartment 111 where the air intake device 120 is located is opposite to the second side wall of the compartment 111 where the exhaust device 140 is located. In other implementations In an example, the first side wall of the compartment 111 where the air intake device 120 is located and the second side wall of the compartment 111 where the exhaust device 140 is located may also face each other back and forth or up and down, which will not be repeated this time.

FIG. 5 is a schematic structural diagram of another unmanned vehicle provided by an embodiment of the application. As shown in Figure 5, the unmanned vehicle also includes an air quality detection device 150 and a control device 160; the air quality detection device 150 and the control device 160 are arranged on the vehicle body 110; the control device 160 is respectively connected to the air quality detection device 150 and the air treatment device. The device 130 is connected; the air quality detection device 150 is used to detect the air quality outside the unmanned vehicle and output the detection signal generated by the air quality detection device 150 to the control device 160, and the control device 160 is used to generate a time control signal according to the detection signal , Control the working time of the air handling device 130.

In some embodiments, when the air quality outside the unmanned vehicle is different, the time required to purify the air so that the air quality reaches a certain standard is different. The worse the air quality, the longer it takes to purify the air. The air quality detection device 150 is installed on the outside of the vehicle body 110 to detect the air quality outside the unmanned vehicle, and generate a detection signal and output the detection signal to the control device 160. The control device 160 can determine the air quality according to the detection signal, and The time control signal is generated according to the air quality, and the time control signal is output to the air treatment device 130. The air treatment device 130 sets the corresponding time for air purification according to the time control signal, so as to achieve different air purification time according to different air quality, and guarantee The air quality is not the same as the air quality after unmanned vehicle purification.

Optionally, the air quality detection device 150 includes an air quality detector. The air quality detector can detect air quality, so as to provide the control device 160 with a detection signal of air quality.

Continuing to refer to FIG. 5, the unmanned vehicle also includes a remote communication device 170, which is connected to the control device 160. The remote communication device 170 is used to obtain remote control instructions through the server and output the remote control instructions to the control device 160 to control The device 160 is used to control the unmanned vehicle according to remote control instructions.

In some embodiments, the remote communication device 170 may be in communication connection with a server, and the server may be in communication connection with a mobile terminal. For example, the mobile terminal may be a mobile phone APP or the like. The mobile terminal sends a remote control instruction to the server and transmits it to the remote communication device 170 through the server. The remote communication device 170 outputs the remote control instruction to the control device 160, and the control device 160 controls the unmanned vehicle according to the remote control instruction. For example, the mobile terminal can output remote control instructions to control the unmanned vehicle to drive to a specific area for air purification, or it can also output remote control instructions to control the unmanned vehicle to perform different air purification times in specific areas during the air purification process. Standard air purification.

5, the vehicle body 110 further includes a driving device 112; the driving device 112 is connected to the control device 160, and the control device 160 is used to control the driving device 112 to drive the unmanned vehicle to travel.

In some embodiments, the unmanned vehicle may also include an automatic driving system. The automatic driving system may include a driving device 112 and a control device 160. The driving device 112 may include a power mechanism and a transmission mechanism for controlling the driving of the unmanned vehicle. Provide power and control the driving of unmanned vehicles. For example, the driving device 112 may include a motor. The state of the driving device 112 is controlled by the control device 160 to realize the automatic driving of the unmanned vehicle.

In some embodiments, the unmanned vehicle may also include a navigation and positioning system and a power supply system. The navigation and positioning system can provide driving routes for unmanned vehicles and provide the safety of autonomous driving of unmanned vehicles. The power supply system includes batteries to provide power for unmanned vehicles.

The technical solution of the embodiment of the present application is to inhale the air outside the unmanned vehicle through the air intake device of the unmanned vehicle, and then filter the suspended particles and bacteria and viruses on the inhaled air through the air processing device, and then discharge the filtered air through the exhaust device. Air to the outside of the unmanned vehicle. Unmanned vehicles can realize unmanned driving in the process of autonomous driving. Therefore, on the basis of avoiding the infection of diseases caused by bacteria and viruses in the air, the air outside the unmanned vehicle can be filtered by suspended particles and bacteria and viruses. Air quality, thereby reducing the risk of infection due to the presence of bacteria and viruses in the air.

The embodiment of the present application also provides an air purification method, which is implemented by the unmanned vehicle provided in any embodiment of the present application. FIG. 6 is a schematic flowchart of an air purification method provided by the embodiment of the present application. As shown in Figure 6, the method includes:

S10. The air intake device of the unmanned vehicle sucks in the air outside the unmanned vehicle;

S11. The air treatment device of the unmanned vehicle filters the inhaled air for suspended particles and bacteria and viruses;

S12. The exhaust device of the unmanned vehicle exhausts the filtered air to the outside of the unmanned vehicle.

In the technical solution of this embodiment, the air outside the unmanned vehicle is sucked in through the air intake device of the unmanned vehicle, and then the inhaled air is filtered by the air processing device for suspended particles and bacteria and viruses, and then the filtered air is discharged through the exhaust device. Air to the outside of the unmanned vehicle. Unmanned vehicles can realize unmanned driving in the process of autonomous driving. Therefore, on the basis of avoiding the infection of diseases caused by bacteria and viruses in the air, the air outside the unmanned vehicle can be filtered by suspended particles and bacteria and viruses. Air quality, thereby reducing the risk of infection due to the presence of bacteria and viruses in the air.

On the basis of the above technical solution, before the inhaled air is filtered by the air treatment device of the unmanned vehicle for suspended particles and bacteria and viruses, the method further includes:

The air quality detection device of the unmanned vehicle detects the external air quality of the unmanned vehicle;

The control device of the unmanned vehicle sets the time for the inhaled air to filter suspended particles and bacteria and viruses according to the external air quality of the unmanned vehicle.

The air quality detection device detects the air quality outside the unmanned vehicle, and sets the filtering time of suspended particles and bacteria and viruses in the air according to the air quality, so that the air purification time can be different according to the air quality, and the air quality can be guaranteed. At the same time, the clean air quality of unmanned vehicles.

Claims

An unmanned vehicle, comprising a vehicle body, an air intake device, an air processing device and an exhaust device; the air intake device, the air processing device and the exhaust device are all arranged on the vehicle body;

The air intake device communicates with the outside of the unmanned vehicle, and the air intake device is configured to suck in air from the outside of the unmanned vehicle; the air processing device is connected through the air intake device, and the air The processing device is configured to filter suspended particles and bacterial viruses on the air provided by the air intake device; the exhaust device is in a through connection with the air processing device, and the exhaust device is configured to exhaust the air processing device. Air provided by the device.
The unmanned vehicle according to claim 1, wherein the air treatment device includes a suspended particle filtering unit and a bacterial virus filtering unit;

The suspended particle filter unit is in a through connection with the air intake device, and the bacterial virus filter unit is in a through connection with the suspended particle filter unit and the exhaust device, respectively;

The suspended particle filtering unit is configured to filter suspended particles in the air provided by the air intake device, and the bacterial virus filtering unit is configured to filter bacterial viruses in the air provided by the suspended particle filtering unit.
The unmanned vehicle according to claim 1, wherein the air treatment device includes a suspended particle filtering unit and a bacterial virus filtering unit;

The bacterial virus filtering unit is in a through connection with the air intake device, and the suspended particle filtering unit is respectively connected to the bacteria and virus filtering unit and the exhaust device in a through connection;

The bacterial virus filtering unit is configured to filter bacterial viruses in the air provided by the air intake device, and the suspended particle filtering unit is configured to filter suspended particles in the air provided by the bacterial virus filtering unit.
The unmanned vehicle according to claim 2 or 3, wherein the suspended particle filter unit includes a filter, and the bacterial virus filter unit includes at least one of an ultraviolet generating structure and a HEPA filter greater than or equal to H13 .
The unmanned vehicle according to claim 4, wherein the HEPA filter includes PP filter paper, glass fiber, composite PP PET filter paper, meltblown polyester non-woven fabric, and meltblown glass fiber.
The unmanned vehicle according to claim 2 or 3, wherein the suspended particle filtering unit includes a negative ion generating device configured to generate a stream of negative ions so that the positively charged suspended particles in the air are taken away by the negative ion generating device. The negative ion current adsorption.
The unmanned vehicle according to claim 1, wherein the vehicle body includes a vehicle compartment; the air intake device and the exhaust device are respectively arranged on different side walls of the vehicle compartment.
The unmanned vehicle according to claim 7, wherein the first side wall of the compartment where the air intake device is located is opposite to the second side wall of the compartment where the exhaust device is located.
The unmanned vehicle according to any one of claims 1-8, further comprising an air quality detection device and a control device; the air quality detection device and the control device are arranged on the vehicle body; the control devices are respectively Connected with the air quality detection device and the air processing device;

The air quality detection device is configured to detect the air quality outside the unmanned vehicle and output the detection signal generated by the air quality detection device to the control device, and the control device is configured to detect the air quality according to the The detection signal generates a time control signal to control the working time of the air treatment device.
The unmanned vehicle according to claim 9, further comprising a remote communication device connected to the control device, and the remote communication device is configured to obtain a remote control instruction through a server, and to control the remote control The instruction is output to the control device, and the control device is configured to control the unmanned vehicle according to the remote control instruction.
The unmanned vehicle according to claim 9 or 10, wherein the vehicle body further comprises a driving device; the driving device is connected to the control device, and the control device is configured to control the driving device to drive the Driving by unmanned vehicles.
The unmanned vehicle according to claim 1, wherein the air intake device has an air inlet, and the air intake device includes a first fan and a first driving structure;

The first driving structure is configured to drive the first fan to work, so that the air intake port sucks in air outside the unmanned vehicle.
The unmanned vehicle according to claim 1, wherein the exhaust device has an exhaust port, and the exhaust device includes a second fan and a second driving structure;

The second driving structure is configured to drive the second fan to work to discharge air to the outside of the unmanned vehicle through the exhaust port.
An air purification method, implemented by the unmanned vehicle according to any one of claims 1-13, comprising:

The air intake device sucks in air outside the unmanned vehicle;

The air processing device filters the air sucked by the air intake device for suspended particles and bacteria and viruses;

The exhaust device exhausts the air filtered by the air treatment device to the outside of the unmanned vehicle.
The air purification method according to claim 14, before the air processing device filters the air sucked by the air intake device for suspended particles and bacteria and viruses, the method further comprises:

The air quality detection device of the unmanned vehicle detects the external air quality of the unmanned vehicle;

The control device of the unmanned vehicle sets the time for filtering the inhaled air for suspended particles and bacteria and viruses according to the external air quality of the unmanned vehicle.