Autonomous mobile system and method for safely removing pathogens

Abstract

A system for eliminating pathogens employs a mobile unit including a lamp. In one embodiment, the lamp emits far ultraviolet-C (far UVC) light, ultraviolet-C light, or light capable of inactivating pathogens to generate an irradiated zone. A processor is coupled to the mobile unit. The processor navigates the mobile unit within a predetermined area while the lamp eliminates airborne and surface pathogens within the predetermined area.

Description

Technical Field

[0001] (Prior Application) This application claims priority to U.S. Provisional Patent Application No. 62 / 706,072, filed Jul. 30, 2020, entitled "Far-UVC Light Emitting Device on Mobile Unit", the entire disclosure of which is hereby incorporated by reference in its entirety.

[0002] (Technical Field) This application generally relates to systems and methods for safely removing pathogens from a target area. More specifically, this application relates to devices, systems, and methods that can use far-ultraviolet-C (far-UVC) light to remove pathogens, monitor a target area, and control the exposure of the target area to far-UVC light to remove pathogens.

Background Art

[0003] With the rapid spread of biological pathogens, it is becoming increasingly important to find new ways to remove pathogens in a manner that is safe for human exposure. Chemicals are increasingly being used for disinfecting surfaces in public places. However, the increasing use of chemicals is causing health effects that are just beginning to manifest. In response to the growing need for the removal of biological pathogens, various forms of ultraviolet light have been developed to sterilize aerosol pathogens and surface pathogens.

[0004] The use of ultraviolet light has proven particularly effective in eliminating pathogens when ultraviolet-C (UVC) light is incorporated into the irradiation device. The emission range of UVC light is between approximately 100 nm and 280 nm. While UVC light has proven highly effective in eliminating pathogens, it is known to exhibit dangerous properties when exposed to human epidermis or eye tissue. Conventional UVC light has been proven to cause skin cancer and cataracts. Therefore, the use of UVC light is limited to situations where human exposure does not occur, and substantial precautions are required to prevent human exposure. A subset of UVC light, commonly called far-UVC light, has recently attracted some attention due to its ability to safely eliminate pathogens while potentially being safe for limited human exposure. The emission range of far-UVC light is between approximately 200 nm and 230 nm. However, if unfiltered, far-UVC light can transmit ultraviolet light above 230 nm, which is thought to adversely affect human epidermis by causing DNA damage. Whether filtered or not, far-UVC light has an irradiation peak at 222 nm.

[0005] While far-UVC light shows promise for pathogen removal, its proposed applications are ceiling-mounted systems within buildings for removing aerosol pathogens, slowly removing them from a distance of 30 minutes or more. This slow surface removal using ceiling-mounted devices is problematic in high-traffic or frequently used areas where the surface cannot be left untouched for 30 minutes or more while waiting for sterilization. If the lamp emitting far-UVC light is placed close to the surface to be sterilized, pathogens may be removed more rapidly, potentially significantly lowering the human exposure limit. Therefore, there is a need for a device that can optimize far-UVC irradiation time and rapidly remove pathogens over a wide area while limiting exposure to regulatory thresholds. [Overview of the Initiative] [Means for solving the problem]

[0006] A system for removing pathogens employs a mobile unit including a lamp. Here, removal includes any process of removing some or all of the pathogens by irradiation with UVC light. Removal includes inactivating the pathogens. In one embodiment, the lamp emits far ultraviolet-C (far UVC) light to create an irradiation zone. Alternatively, the lamp emits UVC light or any ultraviolet light that removes pathogens. A processor is connected to the mobile unit. The processor navigates the mobile unit within a given area while the lamp removes pathogens from the air and surfaces within that area.

[0007] Several solutions have been implemented to eliminate pathogens, all of which provide a cleaner and safer environment for human habitation. However, none of these have been able to provide a unified solution. The system of the present invention provides a solution for reaching vast areas where even overhead or portable systems may not be able to achieve rapid or thorough inactivation of pathogens. Continuous inactivation tailored to specific needs can be implemented by providing lamps that emit light to inactivate pathogens to mobile units, such as drones. For example, short-range inactivation of pathogens can be achieved in the seating area of ​​a stadium or venue, but ceiling-mounted systems cannot achieve timely reduction of pathogens. Inactivation of pathogens can also be achieved using the mobile unit of the present invention in smaller areas such as hospital rooms, cafeterias, and classrooms. If the lamps emit far-UVC light and that far-UVC light is filtered through a bandpass filter to limit harmful light, the system of the present invention can also be used in living spaces. [Brief explanation of the drawing]

[0008] Other advantages of the present invention will be readily apparent, as they will be better understood by referring to the following detailed description, which is taken into consideration in conjunction with the accompanying drawings.

[0009] [Figure 1A] This is a surface view of one embodiment of the apparatus of the present invention. [Figure 1B] This is a rear perspective view of the apparatus in Figure 1A. [Figure 2] This is a cross-sectional view along the centerline of the apparatus in Figure 1A. [Figure 3] Figure 1A is an exploded view of the device. [Figure 4] This is a cross-sectional view of the device shown in Figure 1A with the distance measuring device activated. [Figure 5] This is a cross-sectional view of the apparatus shown in Figure 1A, with other distance measuring devices activated. [Figure 6] This is a partial perspective view of the apparatus in Figure 1A, showing an identifier light source activated to identify the irradiation zone. [Figure 7] This is an enlarged view of the device shown in Figure 1A with the housing separated. [Figure 8] This figure shows a second embodiment of the system of the present invention implemented in a vehicle. [Figure 9] Figure 8 is a perspective view of the headliner system from the vehicle shown. [Figure 10] Figure 1A is a flowchart illustrating the operation of the device. [Figure 11] Figure 8 is a flowchart illustrating the operation of the pathogen removal system inside the vehicle. [Figure 12] This is a perspective view of a mobile unit according to the present invention that moves around the environment and sterilizes a surface or space by emitting far-UVC light. [Figure 13] Figure 12 is a bottom view of the mobile unit. [Figure 14] This is a perspective view of the mobile unit in Figure 12 returning to the docking station. [Figure 15] This is a side elevation view of a second embodiment of a mobile unit, in which at least one UV light source is positioned at the end of an articulated arm. [Figure 16] This is a side elevation view of a mobile unit according to a third embodiment, in which multiple UV light sources are arranged at the ends of each jointed arm. [Figure 17] This is a schematic diagram of the mobile pathogen removal system according to the present invention. [Figure 18]Figure 17 is a flowchart illustrating the operation of the mobile unit in the pathogen removal system shown. [Modes for carrying out the invention]

[0010] Referring to Figure 1A, the portable light assembly of the present invention is generally shown as 10. Assembly 10 includes a housing 12 defining a lamp aperture 14, as will be further described below. A secondary light aperture 16 is defined by the housing 12 adjacent to the lamp aperture 14. Both apertures 14, 16 are defined by the surface 18 of the housing 12. The purpose of the lamp aperture 14 in the secondary light aperture 16 will be further described below.

[0011] This type of device is described in the following international patent applications: PCT / US2021 / 025411, titled "SYSTEM AND METHOD FOR SAFELY IRRADICATING PATHOGENS"; US patent application filed on December 11, 2020, with application number 17 / 119,440, titled "HANDLHELD FAR-UVC DEVICE WITH LIDAR MEASUREMENT AND CLOSED LOOP FEEDBACK"; US patent application filed on March 6, 2020, with application number 16 / 811,522, titled "PORTABLE AND DISPOSABLE FAR-UVC DEVICE"; and PORTABLE AND DISPOSABLE FAR-UVC DEVICE filed on March 5, 2020, with application number 16 / 809,976. A US patent application titled "PORTABLE AND DISPOSABLE UV DEVICE" was filed on January 21, 2020, with application number 62 / 963,682, and the title of the invention is "PORTABLE AND DISPOSABLE FAR-UVC DEVICE" A US patent application filed on February 19, 2019, with application number 16 / 279,253, and the title of the invention is "PORTABLE AND DISPOSABLE FAR-UVC DEVICE" A US patent application filed on July 6, 2018, with application number 62 / 694,482, and the title of the invention is "PORTABLE AND DISPOSABLE FAR-UVC DEVICE" A US patent application filed on February 20, 2018, with application number 62 / 632,716, and the title of the invention is "PORTABLE AND DISPOSABLE FAR-UVC This is contemplated in the U.S. Patent Application “DEVICE” and in the U.S. Patent Application No. 63 / 003,560, filed on April 1, 2020, the contents of which are incorporated herein by reference.

[0012] As best shown in FIG. 1B, the housing 12 includes a rear portion 20 that defines an indicator opening 22. A removable grip 21 is removably held by complementary abutment surfaces 23, 25 (FIG. 3) each defining a convex shape that receives the rear portion 20 of the housing 12 and provides an interference retention system. The removable grip 21 is washable by irradiation using the assembly 10 or otherwise as desired, as will become further apparent below. When mated, the surface 18 and the rear portion 20 define a stand 19 such that, if desired, the lamp 14 can be vertically oriented and the assembly 10 can stand upright.

[0013] An indicator 24 surrounds the indicator opening 22. The indicator circuit 24 signals an operator whether the distance between the lamp 26 (FIG. 4) and the irradiated surface is within a predetermined distance to the pathogen to provide optimal removal energy. For example, a first tail 28 signals the operator if the distance exceeds (or in some cases is not far enough away from) the predetermined distance. In one embodiment, the tail lights up red or another color and signals the operator if the lamp is too far or too close. The indicator 24 generates a second signal by a second tail 30 indicating when the lamp is close to a position at a predetermined distance from the irradiated surface.A second tail lights up yellow to signal that the lamp 26 is close to a position at a predetermined distance from the irradiated surface 60 (FIG. 4). When the lamp 26 is at a predetermined distance from the irradiated surface, a third tail 32 lights up green to signal to the operator that the lamp is operating at optimal efficiency at the predetermined distance. Each tail 28, 30, 32 is illuminated by a corresponding light 29, 31, 33 (FIG. 3), in this embodiment corresponding light-emitting diodes.

[0014] Those skilled in the art will understand that different tails or indicators may be used to signal to the operator whether the assembly 10 is being used at an appropriate distance from the surface to be sterilized. These may include blinking lights, audible or audible feedback cues, vibrations, or any indicator that may be sufficient to signal to the operator that the lamp 26 is positioned at an appropriate distance to achieve optimal removal of pathogens from the irradiated surface, but are not limited thereto. As will be described in more detail below, these cues can be used to provide the user with additional information, including but not limited to, markings of exposure limits, presence or removal of pathogens, and the like.

[0015] Although the term "surface" is used throughout this application, it should be understood that the present invention is capable of rapidly removing pathogens not only on inanimate objects but also on the epidermis, including an individual's hands, feet, arms, and even face. As will be further described below, it has become possible to rapidly sterilize the skin without the need for the use of soap or chemicals. With the portable assembly 10 of the present invention, an individual's hand can be sterilized within seconds. Also, abrasions and wounds can be safely and rapidly sterilized while waiting for the administered antibiotic to take effect. When the lamp 26 is positioned at a close distance, such as 1 inch, to the epidermis, the filtered far-UVC light rapidly removes a wide range of pathogens in seconds, while not penetrating the epidermis, despite the very high irradiation energy.

[0016] Referring here to Figure 3, the lamp 26 (Figure 2) is activated by pressing a switch 35 that partially extends through an opening 37a defined by the rear 20 of the housing 12 and an opening 37b defined by the removable grip 21, respectively, when the removable grip 21 is positioned in place on the housing 12. A switch cover 39 is positioned between the switch 35 and the rear 20 of the housing and, when pressed, conceals the switch 35 so that the operator does not touch the switch 35 but can touch the switch cover 39. Further embodiments include a protective barrier 41 (Figure 1B) that is permanently or temporarily attached to the removable grip 21 above the grip opening 37b to prevent the switch cover 39 from being contaminated. This allows the barrier 41 to also be sterilized together with the grip 21 when the grip 21 is removed from the housing 12. In one embodiment, if the assembly 10 is supported vertically by the stand 19, the switch 35 may optionally activate the processor 68 to power the lamp 26 for a predetermined time so that the user can sterilize, for example, their own hands, the removable grip 21, or any other object without having to continue pressing the switch 35 or even having to hold the device 10. The lamp 26 can be illuminated in a vertical position without requiring the use of a safety device, as the irradiation wavelength of the lamp 26 is filtered and the transmitted wavelength is limited to less than 230 nm and is not harmful to the eyes and skin. Alternatively, since activating or stopping the device 10 could contaminate the device 10 through human contact, the device 10 may optionally be activated / deactivated via face / eye recognition (as seen in some mobile devices) and / or via voice activation (similar to the voice assistants in mobile devices). The device 10 may or may not be activated / deactivated via specific movements (i.e., shaking it, moving it in a specific motion, etc.).

[0017] Referring here to Figure 2, a cross-sectional view is shown through line 2-2 in Figure 1A. The lamp 26 is positioned with a lamp frame 27 covering the lamp opening 14 to generate irradiation onto the target surface 60 through the lamp opening 14. The lamp 26 is adapted for use with various lighting technologies, including krypton chloride tubes, light-emitting diodes, or any other lighting system capable of transmitting light with a peak wavelength of 222 nm. In one embodiment, the lamp 26 is filtered to remove light having wavelengths greater than about 230 nm. Thus, germicidal light is transmitted at wavelengths between about 200 nm and 230 nm. In one embodiment, a fused silica protective cover 34 or equivalent is placed over the lamp opening 14 to protect the lamp during use. The fused silica protective cover 34 is considered durable enough to withstand the energy generated by far-UVC light irradiation without significant degradation, while allowing light transmission without significantly reducing the irradiation power of the lamp 26. However, other cover material compositions, including but not limited to quartz or any other material capable of enabling the transmission of far-UVC light without significant degradation, are also within the scope of the present invention. It should also be understood that, although interchangeable throughout this specification, "lens" and "cover" refer to elements 36 positioned between the lamp 26 or a tube contained within the lamp and the irradiated surface 60, respectively, so that far-UVC light passes through the lens 36. Furthermore, a filter (not shown) that filters the far-UVC light to remove or significantly reduce wavelengths above 230 nm may be part of the lens 36. It should also be understood that other far-UVC light sources, including light-emitting diodes or other sources that do not transmit light above approximately 230 nm but provide a peak irradiation of approximately 222 nm that is substantially safe for humans while still being able to eliminate pathogens, are also within the scope of the present invention.

[0018] The lamp 26 is powered via a power pack 36. The power pack 36 is rechargeable via a plug-in charging port 38. In one embodiment, the power pack 36 includes two lithium-ion 18650 PMI cells (not shown) each supplying about 3.6 volts. Thus, when charged, the power pack 36 supplies about 7.2 volts. Alternatively, the lamp 26 is powered by a current supplied via the charging port 36. The power pack 38 is supported by a power pack support 40, which secures the power pack 36 to screw bosses located on the inner surface of the surface 18 of the housing 12 via fasteners (not shown) in a known manner. The fasteners are received through support openings 44 defined by support legs 46 (Figure 7).

[0019] The support legs 46 allow the power pack support 40 to straddle the inverter 48, which is also fixed to the surface 18 of the housing 12. The inverter 48 receives a current of 7.2 volts from the power pack 36 and shapes the wavelength of the current in a known manner so that the lamp 26 can receive it. The inverter 48 is positioned on an inverter frame 50 which is fixed to the surface 18 of the housing 12 by fasteners received through an inverter frame opening 52.

[0020] The transformer 54 boosts the voltage from approximately 7.2 volts generated by the power pack 36 to approximately 4,000 volts, providing sufficient energy to power the lamp 26. In one embodiment, the inverter 48 is a Stratheo inverter. However, it should be understood that any inverter / transformer combination capable of shaping the current wavelength and boosting the voltage to approximately 4,000 volts is sufficient. The transformer 54 is also mounted on an inverter frame 50 to reduce the overall size of the inverter 48 and transformer 54 combination.

[0021] Referring here to Figures 4 and 5, the distance measuring device 56 is fixed to a lamp frame 58, which also fixes the lamp 26 to the surface 18 of the housing 12. The lamp frame 58 is oriented such that the lamp 26 is positioned horizontally to the surface to be sterilized 60 when the assembly 10 is in use, as is best shown in Figure 4. The distance measuring device 56 is offset from the lamp 26 and positioned at an angle to the lamp 26. In one embodiment, the distance measuring device 56 transmits a signal to the center 62 of the irradiation zone 64 on the surface 60 defined by the lamp 26. The distance measuring device 56 includes a sensor 66 that receives reflected feedback of the signal from the center 62. The sensor 66 supplies feedback data to a processor 68 to calculate the vertical distance from the lamp 26 to the center 62 of the irradiation zone 64. Thus, despite being offset from the lamp 26, the distance measuring device 56 measures the precise vertical distance between the lamp 26 and the surface to be irradiated 60 at the position with the highest energy level, the purpose of which will become clearer as described below.

[0022] In one embodiment, the distance measuring device 56 is a lidar system that transmits a laser beam 63 to the central part 62 of the illumination zone 64. The laser beam 63 is either visible or invisible. If visible, the laser beam provides user feedback to the central part 62 of the illumination zone 64. In another embodiment, the distance measuring device 56 takes the form of infrared light transmitted to the central part 62 of the illumination zone 64, and the sensor 66 is an infrared sensor that detects reflected light from the central part 62 to signal a processor to calculate the vertical distance from the central part 62 to the lamp 14. Other types of distance measuring devices, including radar, photogrammetry, etc., are within the scope of the present invention as long as they can detect the central part 62 of the illumination zone 64. It should also be understood that time-of-flight measurement between the light (or other signal) and the reflecting sensor 66 provided sufficient accuracy for the processor 68 to calculate the vertical distance between the central part 62 or optionally a point and the lamp 26.

[0023] As described above, the processor 68 signals the indicator 24 to indicate whether the lamp 26 is located at a predetermined distance from the center 62 of the irradiation zone. In one embodiment, the indicator 24 signals that an appropriate distance for rapid removal of pathogens is maintained if the lamp 26 is positioned within a distance range, for example, between 1 inch and 2 inches. Thus, the user is provided with feedback that the lamp 26 is kept within the appropriate range, even when a three-dimensional surface is being irradiated to remove pathogens. It has been found that distance is inversely proportional to the rate of energy reaching the surface 60. The smaller the distance from the lamp 14 to the irradiated surface 60, the higher the ultraviolet energy transfer rate to the surface 60, and the more rapidly pathogens on the surface are removed.

[0024] To determine the amount of energy required to eliminate pathogens, the lamp 14 was tested at various distances, both with and without the fused silica protective lens 34. The results showed that the reduction in far-UVC light energy was minimal when the fused silica lens 34 was used. The results were measured in μW units, as shown in Table 1.

[0025] [Table 1]

[0026] At a distance of approximately 1 inch from the irradiated surface 60, the lamp 14 achieves an energy transfer rate of 3030 μW. Alternatively, at a distance of approximately 6 inches from the irradiated surface 60, the lamp 14 achieves an ultraviolet energy transfer of 330 μW. The amount of energy transferred is converted into the time required to eliminate a specific pathogen. The fused silica protective cover (or lens) 34 reduces the amount of irradiation energy at the irradiated surface 60 to some extent. Surprisingly, the reduction in irradiation energy at the surface 60 due to the fused silica lens 34 decreases with increasing distance. Therefore, the reduction in irradiation energy due to the protective fused silica lens 34 is inversely proportional to the distance between the lamp 26 and the surface.

[0027] Furthermore, the irradiation energy when the lamp 14 is located about 1 inch away from the irradiated surface is about 1.8 to 1.83 times (about 2 times) greater than when the distance between the lamp 14 and the irradiated surface 60 is about 2 inches from the lamp 14. The lamp 14 supplies about 4.67 to 4.77 times (about 5 times) more surface energy when it is located about 1 inch from the irradiated surface 60 than when it is located about 4 inches from the irradiated surface. The lamp 14 supplies about 9.07 to 9.18 times (about 10 times) more surface energy when it is located about 1 inch from the irradiated surface 60 than when it is located about 6 inches from the irradiated surface 60.

[0028] The test results show that when lamp 14 is positioned at a distance of approximately 1 inch from the irradiated surface 60, Covid-19 is eliminated by achieving a 3-log reduction (99.9% elimination) of the pathogen in approximately 1 second. Alternatively, Covid-19 can be eliminated to a 3-log reduction in approximately 9.5 seconds when lamp 14 is positioned at a distance of approximately 6 inches from the irradiated surface 60. Those skilled in the art will understand that different pathogens require different irradiation doses for complete elimination or a 3-log reduction on any given surface. When lamp 14 is positioned at a distance of 1 inch from the irradiated surface 60, a virus may require only 1 second of irradiation, while bacteria or spores may require several seconds of irradiation at the same distance. Also, a 2-log reduction, which achieves 99% elimination of Covid-19, is achieved in approximately 0.1 seconds when lamp 26 is approximately 1 inch from the irradiated surface 60. Similarly, if the lamp 14 is positioned at a distance of approximately 6 inches from the irradiated surface 60, Covid-19 can be eliminated to a 2-log reduction in approximately 0.95 seconds. It will be clear that measuring the precise distance of the lamp 26 from the irradiated surface 60 is necessary when determining the level of pathogen elimination achieved.

[0029] Figure 5 shows another configuration in which the distance measuring device 56 transmits secondary light onto a measurement area 72 that intersects with the illumination zone 64 on the surface 64. In this embodiment, at least a portion of the measurement area 72 intersects with the central portion 62 of the illumination zone 64. The sensor 66 detects reflected light, radar, etc., from the illumination zone 64 to send a signal to the processor 68 to calculate the vertical distance between the lamp 26 and at least the central portion 62 of the illumination zone 64.

[0030] It should also be understood that the distance measuring device 56 includes a transmitter 74 that transmits a signal to the surface 60 illuminated by the lamp 26. The transmitter 74 is intended to project one of the following: an invisible laser beam, a visible laser beam, infrared light, radar, etc., so that the processor 68 can calculate the vertical distance between the lamp 26 and at least the central part 62 of the illumination zone 64, and so that the sensor 66 can detect the reflected signal from the illuminated surface 60.

[0031] The transmitted far-UVC light is mostly contained within the invisible spectrum. Therefore, it is difficult for the user to fully identify the surface area where the lamp 14 provides optimal irradiation. Furthermore, the lamp is effective as far-UVC light irradiation on the surface spreads radially outward from the central part 62 (or region) of the irradiation zone 64. However, energy transfer to the surface 60 decreases beyond the irradiation zone 64 on the surface 60. The second irradiation zone 76, located generally radially outward from the first irradiation zone 64, is still effective but requires additional time to eliminate pathogens. To assist the operator in identifying at least the irradiation zone 64, and, if desired, the second irradiation zone 76 as well, the identifier light source 70 projects a first ring 78 or equivalent around the first irradiation zone 64 and a second ring 80 or equivalent around the second irradiation zone 76, as shown in Figure 6. The identifier light source 70 is a separate light source from the secondary light, which is part of the distance measuring device 56.

[0032] In one embodiment, illumination by the identifier light source 70 is adjusted by an identifier light source lens 82 that focuses light from the identifier light source 70 to concentrate light such that a first ring 78 is positioned on the surface 60 immediately adjacent to the widest spatial boundary of the first illumination zone 64, and a second ring 80 is positioned immediately adjacent to the widest spatial boundary of the second illumination zone 76. The diameters of the first ring 78 and the second ring 80 increase by an amount equal to the widest spatial boundary of the first illumination zone 64 and the second illumination zone 76, in proportion to the vertical distance between the lamp 26 and the central part 62 of the illumination zone. Thus, the identifier light source lens 82 is configured to correlate so that the angular displacement of the refracted light generates rings 78,80 whose diameters increase by the same rate as the increase in far-UVC light in the first illumination zone 64 and the second illumination zone 76, respectively. The rings 78,80 are also transmitted onto a three-dimensional surface, enabling the identification of planar objects within the illumination zones 64,76. The combination of rings 64, 76 and distance measuring device 56 that provides user feedback via indicator 24 allows the user to verify the feasibility of pathogen removal, which can be achieved, for example, when used on inanimate objects and even on the hand or other parts of the human body.

[0033] In further embodiments, the device 10 may emit visible light in various formats and / or shapes. For example, the format and / or shape may include a name (or any other word), initials, symbols and / or shapes (e.g., a bat signal, a star, a flag, etc.) and / or photographs, depending on the choice made by the particular application or user. Optionally, the user may upload one or more images to the device 10 for use for the emitted visible light (the uploaded images are backlit by the light source so that the images are projected onto a surface). Optionally, when the device 10 is at an appropriate height, the customized visible light or projected image or icon may be focused so that the user knows where the device 10 is aiming and that the device 10 is at an appropriate effective height or distance for removing pathogens. In other examples, the device 10 may emit visible light in the shape of an icon that the user targets or aims at the surface to be irradiated. If the device 10 has operated for the time necessary for it to be effective, the visible light may be turned off and / or attenuated and / or the device 10 may disable the visible light and / or the device 10 may need to be recharged and / or (for example, if the absence of visible light indicates that the far-UVC device 10 is no longer removing pathogens) the user may be informed that the entire far-UVC unit must be replaced.

[0034] In yet another embodiment, the device 10 may emit sound instead of, or in addition to, visible light. For example, whether for a visually impaired person or simply as an alternative means of targeting an area over a set period of time, the device 10 may use sound or acoustic messaging to communicate the length of time to the user. In this embodiment, the processor 68 also includes an audio transistor for generating sound output. The device 10 emits sound indicating an appropriate distance from a surface to remove pathogens over a given period of time, so as to inform the user that the device 10 is at an appropriate or optimal distance from the surface to be irradiated. For example, in addition to, or alternative to, emitting visible light, the device 10 may include a sound activation configuration that is activated when the user is at an appropriate and / or incorrect distance to remove pathogens. The processor may also provide audible user feedback via the sound transistor if the device 10 is moving too fast over the surface 60 and cannot achieve sufficient removal of pathogens, as can be identified by an accelerometer and / or surface distance measurement.

[0035] In a further embodiment, the device 10 emits a sound (e.g., using an ultrasonic sensor, lidar, or other distance detection system) to indicate when the device 10 is too close to or too far from the target surface. Such a sound may be permanent and / or customizable (similar to a mobile phone ringtone). Once the device 10 has operated for the time necessary to be effective (e.g., to remove pathogens), the sound may turn off and / or decay, and / or the device 10 may communicate to the user that the device 10 needs to be recharged and / or (e.g., if the absence of sound indicates that the far-UVC device 10 is no longer removing pathogens because the lamp has exceeded its usage limit,) that the entire far-UVC unit needs to be replaced. Optionally, the sound may be customizable to the user's preference (similar to how mobile phone ringtones and notification sounds are customizable).

[0036] In yet another embodiment, the device 10 emits a fragrance instead of, or in addition to, emitting visible light for stationary use. Whether for the visually impaired or the hearing impaired, the device 10 emits a fragrance to indicate that the device 10 is in use or that the device 10 needs to be replaced or recharged. Instead of, or in combination with, visible light, the device 10 emits a fragrance that is emitted when the device 10 is activated by an attachable fragrance unit that provides user feedback regarding the operational actions of the device 10, as disclosed throughout this application.

[0037] In some cases, human exposure may be limited by regulations or standards based on UVC or far-UVC light energy for a predetermined period of time, such as 8 hours or more, or 24 hours or more. Therefore, the apparatus 10 of the present invention includes a biosensor 90 capable of determining the presence of human epidermis. Referring again to Figures 1-3, the biosensor 90 is represented graphically on the portable light assembly 10, which also includes a biosensor 90 for detecting and identifying individuals in the irradiation zone 64. For example, the biosensor 90 detects the presence of human epidermis by identifying heart rate, body temperature, and skin recognition. Furthermore, the biosensor 90 detects the presence of skin and / or eyes, for example, through heat or skin recognition using backscattering or blue LED technology. Various types of biosensors, including but not limited to cardiac rhythm, vein patterns, fingerprints, hand shape, DNA, voice patterns, iris patterns, and face detection, are within the scope of the present invention. Adaptive biosensing is also within the scope of the present invention. For example, the biosensor 10 and processor 68 are programmed to distinguish a user, or more importantly, an individual exposed to far-UVC light, from other individuals, using heart rate, vein recognition, etc. As will be further explained below, the device 10 automatically terminates irradiation when an individual is exposed to far-UVC light up to a predetermined threshold or limit. The biosensor 90 distinguishes between multiple users and allows the device 10 to stop when any user reaches the limit, but to start up for other users who have not yet reached the limit. The biosensor 90 identifies whether multiple users are within the irradiation zone of the device 10 and signals the processor 68 to aggregate the length of time each user has been in the irradiation zone and thereby terminate irradiation by the device 10. It should be understood that the processor 68 is programmed to correlate the distance from the device 10 to the epidermis with the amount of far-UVC light energy transmitted to the epidermis, for the purpose of identifying whether a predetermined limit has been met. Therefore, epidermis closer to the device 10 is allowed a shorter exposure time than epidermis further away from the device 10.

[0038] In some cases, it is desirable to include the ability to detect pathogens that are aerosols or present on a surface. Therefore, in other embodiments, the device 10 includes a pathogen sensor 91 for detecting and identifying any pathogens within the irradiation zone 64. Microbial sensors and equivalents provided by Nuwave Sensors can be used for rapid detection of airborne microorganisms. When detecting the presence of surface pathogens, long-range surface plasmon-enhanced fluorescence spectroscopy is considered to achieve rapid detection. Surface plasmon resonance sensors are optical platforms that enable highly sensitive and detailed real-time measurements of biomolecular interactions, providing rapid user feedback on whether surface pathogens have been removed. If pathogens are detected within the irradiation zone 64, the processor 68 continues irradiation to ensure that the pathogens are removed. For example, the processor 68 continues irradiation with the lamp 26 until no more pathogens are detected, or until a 2-log, 3-log, or other removal level is achieved. In a hospital setting, even a 3-log or 4-log reduction of pathogens may be required, while in personal or other commercial applications, only a 2-log reduction may be necessary. The processor 68 is programmable to adapt the device 10 to any of these desired removal results. In yet another embodiment, an audible or visual signal is generated to notify the operator that no further pathogens have been detected, so that the operator can stop the device 10 at their discretion.

[0039] For example, further use of pathogen removal is desirable in enclosed spaces such as passenger cars and airplanes. Figures 8 to 10 illustrate further embodiments of the system 100 for safely removing pathogens, implemented in a vehicle 102. Although a passenger car is shown, it should be understood that the present invention can be implemented in any passenger vehicle, including but not limited to buses, taxis, rideshare vehicles, fully autonomous vehicles, and even airplanes. The vehicle 102 includes a far-UVC lamp 104 incorporated into the headliner 106 of the vehicle 102, which can also be removed from the headliner 106 for portable use, operating similarly to the portable assembly 10 described above. Although the headliner is referred to throughout this specification, it should be understood that the lamp 104 may be integrated with any interior trim component, including but not limited to seats, pillar covers, speaker grilles, door panels, steering wheel and column, instrument panel, etc. The lamp 104 not only removes pathogens from the vehicle seats 108 and other interior surfaces, but also removes pathogens from the ambient air inside the vehicle 102, along with any occupants 110 seated inside the vehicle 102, as will be further described below. The lamp 104 is controlled by a processor 112 via an electrical cable 114, both of which are integrated into the headliner 106. Alternatively, the processor 112 can be located anywhere in the vehicle 102, integrated with the main vehicle processor, and even communicate wirelessly with the lamp 104. The processor 112 is programmed in a similar manner to the processor 68 located in the portable device 10. In this embodiment, the system 110 also includes a fan or air circulation device 116 integrated into the headliner 106 in close proximity to the lamp 104, or integrated with the lamp 104. Fan 116 assists the vehicle HVAC system by circulating the air from which pathogens have been removed by lamp 104, and by directing the air along the path of lamp 104's irradiation zone, as indicated by the dashed line in Figure 8, to increase the probability that aerosol pathogens will be guided into the irradiation zone of lamp 104.

[0040] The vehicle-mounted system 100 further includes a biosensor 118 for detecting the presence of occupants 110 in the vehicle 102. Similar to the biosensor 90 included in the portable device 10, the biosensor 118 may include a heart rate monitor or a fingerprint detector, or it may detect the presence of skin and / or eyes through thermal or skin recognition, for example, using backscatter or blue LED technology, as described above in the earlier embodiments herein. The system may also include an HVAC far-UVC lamp 120 within the vehicle 102's HVAC system to remove air circulating into the vehicle 102 from the ventilation system. As best illustrated in Figure 8, the far-UVC lamp 120 may also be located above or inside the instrument panel 121 adjacent to the HVAC vents used to guide air throughout the vehicle's cabin. This removes aerosolized pathogens before the air circulates throughout the cabin.

[0041] It is within the scope of the present invention that, as a further safety measure, the system 100 and apparatus 10 of the previous embodiment communicate via wireless transmission or over the Internet so that multiple devices notify of any user's exposure. Furthermore, the multiple devices are provided with wireless communication via Bluetooth or a mobile phone service to notify of a predetermined user's exposure, even when integrated with a mobile phone application.

[0042] Furthermore, the vehicle-based system 100 optionally includes a pathogen sensor 119 for detecting aerosols or surface pathogens in a manner similar to that described above in the earlier embodiments herein. The system provides user or occupant input whether or not pathogens are detected. An occupant entering the vehicle is scanned for pathogens by the pathogen sensor 119, and if pathogens are detected, the system 100 activates a lamp 120. Alternatively, if pathogens are detected, the doors of the vehicle 102 remain locked to prevent the occupant from entering.

[0043] Fragrances that indicate the absence of pathogens or their absence and function like air fresheners can also be circulated within the vehicle 110 (instead of or in addition to visible light). The fragrances may be customizable to the user's preference. System 100 may indicate that the fragrance needs to be replaced and / or the device needs to be recharged when the fragrance has faded and / or that the entire far-UVC 100 needs to be replaced (for example, if the absence of fragrance indicates that the far-UVC lamp 120 is no longer removing pathogens from the air inside the vehicle's interior). Alternatively, for stationary use only, for example when portablely mounted in a passenger car air vent, System 100 may emit a fragrance and indicate when the lamp 120 has been activated or when the lamp 120 needs to be replaced or recharged. For example, System 100 may include a fragrance generating attachment that is mounted inside or in close proximity to the interior of a passenger car ventilation system.

[0044] Figures 10A and 10B show an exemplary method for operating the portable optical device 10. Once the device 10 is activated (step 130), the sensor 90 determines whether an individual is inside the irradiation zone 64 (step 132). If the sensor 90 determines that an individual has entered the irradiation zone 64, the sensor 90 identifies this particular individual in order to track the amount of far-UVC light exposure that this individual receives from the device 10 (step 132). Tracking the amount of far-UVC light exposure each individual receives is important because regulations managed by various non-governmental organizations limit the maximum duration of exposure to far-UVC light that a person may receive within a given exposure period. For example, under current regulations, individuals must limit the amount of exposure they receive to far-UVC light to a predetermined limit. To ensure that a particular individual inside the irradiation zone 64 does not exceed the recommended limit, the processor 68 tracks the length of time that the particular individual is exposed to far-UVC light by implementing a timer or counter. If the device 10 is still running (step 134), the processor 68 determines whether a particular individual may be exposed to far-UVC light from the device 10 (step 136). In other words, the processor 68 determines whether a particular individual has already reached their own maximum duration under the regulations. If the processor 68 determines that a particular individual has met the limit for exposure to far-UVC light from the device 10, the processor 68 remains in the loop until the person leaves the irradiation zone 64 in step 132 or the device is shut down in step 134 (steps 132, 134, and 136). Since the regulations are updated periodically, the present invention updates the maximum duration an individual may be exposed to far-UVC light from the device 10 via a website or via mobile pairing with the device 10 for updating the software and / or code.

[0045] In step 136, if the processor 68 determines that a particular individual is permitted to be exposed to far-UVC light from the device 10, the processor 68 turns on the lamp 26 and starts a timer for that individual to track the length of time that individual is exposed to far-UVC light from the device 10 (step 138). The sensor 90 continues to monitor whether the particular individual remains within the irradiation zone 64 (step 140), and the processor 68 monitors the time the individual remains within the irradiation zone 64 to ensure that the individual does not exceed the maximum duration while the device 10 is still running (step 144) (step 142). In step 142, if the processor 68 determines that the particular individual has reached their maximum duration and is no longer permitted to be exposed to far-UVC light from the device 10, the processor 68 turns off the lamp 26 (step 146), turns off the timer for that individual, and records that time as the individual's last exposure to far-UVC light (step 148). The system then returns to loops 132, 134, and 136, waiting for the individual to leave irradiation zone 64.

[0046] In step 144, if the processor 68 determines that the device 10 is no longer in an active state, the processor 68 turns off the lamp 26, turns off the timer for that individual, and records the end time as the individual's last exposure to far-UVC light (step 150). The limit is based on a period of 8 hours or 24 hours, after which the processor 68 resets the timer for each individual to allow additional exposure.

[0047] In step 132, if the sensor 90 does not detect an individual in the irradiation zone 64, the processor 68 turns on the lamp 26 (step 152). The sensor 90 continues to monitor whether an individual has entered the irradiation zone 64 (step 154). If the sensor 90 determines that an individual has entered the irradiation zone 64, the processor 68 proceeds to step 142 to determine whether the specific individual may be exposed to far-UVC light from the device 10. In step 154, if the sensor does not detect an individual in the irradiation zone 64, the processor 68 remains in loops 154 and 156 until it determines that the device 10 has been stopped (step 156), at which point the processor 68 turns off the lamp 26 (step 158). In step 140, if the specific individual has left the irradiation zone 64, the processor 68 turns off the timer for that individual and records the end time as the individual's last exposure to far-UVC light (step 160). The method then returns to step 154. As long as the device 10 is activated (step 156), the lamp 26 remains lit until another individual is detected within the irradiation zone 64 (step 154). The use of a biosensor to identify an individual when they are exposed to far-UVC light provides fail-safe capability for using the device 10 while ensuring that limits are not exceeded.

[0048] Figures 11A and 11B illustrate an exemplary method for operating the removal system 100 inside the passenger compartment and on the passenger seat 108 within the vehicle 102 shown in Figure 8. Once the system 100 is activated (step 162), the processor 112 turns on the lamp 104 (step 164) and starts a timer to control the duration for which the lamp 104 remains activated (step 166). A biosensor 118 determines whether or not an occupant 110 is inside the vehicle seat 108 (step 168). If the biosensor 118 does not detect an occupant 110 inside the vehicle seat 108, the processor confirms that the system is still activated (step 170). If the system is still activated, the processor 112 determines whether or not a first threshold time has been reached (step 172). The first threshold time is the length of time for which the lamp 104 is activated when no occupant 110 is detected inside the vehicle seat 108. When the first threshold is reached, the processor turns off the lamp 104 (step 174) and turns off the timer (step 176). At this point, the pathogen has been removed from the vehicle seat 108 and other surfaces, and the system 100 waits for the occupant to enter (step 178). After the occupant 110 enters, the processor 112 turns on the lamp 104 (step 180) and starts the timer (step 182). The processor 112 determines that the timer has reached a second threshold, which is the maximum amount of time the occupant can be safely exposed to far-UVC light, i.e., that enough time has passed and the pathogen has been removed.

[0049] If the second threshold has not been reached, the system 110 continues to illuminate the occupant 110 in the vehicle seat 108 until the second time threshold is reached (step 184) or the occupant 110 leaves the vehicle (step 186). If the processor determines that the second time threshold has been reached, the processor 112 turns off the lamp 104 (step 188) and turns off the timer (step 190).

[0050] If the driver wishes to remove any pathogens from themselves, the driver can activate the lamp 104 located above the driver's seat. This process would follow steps 182-190 provided in Figure 11B. Alternatively, the process may follow steps 140-150 provided for device 10.

[0051] The device 10 and / or system 100 may also include a pathogen detection sensor for targeting the time and intensity of far-UVC light irradiated to target a specific pathogen.

[0052] Figures 12–17 illustrate further embodiments of the mobile system 200 for safely removing pathogens in enclosed spaces (e.g., classrooms, office buildings, hotel rooms, or gyms) or open spaces (e.g., stadiums, arenas, or event venues). Each positional configuration includes one or more mobile units 202 (e.g., drones) traversing the area to be removed. While the application illustrates and refers to the mobile units 202 as drones, it should be understood that the present invention can be implemented in any manned or unmanned, piloted or autonomous mobile units 202, including wheeled electric vehicles. The mobile units 202 can traverse at surface level (e.g., along the floor) or in the air at various heights and distances from surface or airborne targets.

[0053] The mobile unit 202 includes a body 204 and one or more steering devices or rotors 206 for steering the unit over, above, and / or along a surface, for example, generating lift to keep the mobile unit 200 above the ground. The mobile unit 202 includes one or more far-UVC lamps 208 operating in a similar manner to the mobile assembly 10 described above. The lamps 208 can emit far-UVC light in any direction to irradiate surfaces and aerosolized pathogens. For example, the light can be emitted from the top, bottom, or sides of the mobile unit 202. The light can be emitted from all sides of the mobile unit 202 (i.e., 360° around the mobile unit) to simultaneously irradiate and emit visible light to nearby surrounding surfaces / space from many angles. Optionally, the lights can be adjustably positioned on the mobile unit 202 and directed upward or downward to direct the light in a specific direction.

[0054] The mobile unit 202 also includes a biosensor 210 for detecting the presence of a person within or near the irradiation zone. Similar to the biosensor 90 included in the portable device 10 and the biosensor 118 included in the vehicle 102, the biosensor 210 may include a heart rate monitor or may detect the presence of skin and / or eyes through thermal or skin recognition, for example, using backscatter or blue LED technology as described above in the earlier embodiments herein. The mobile unit 202 also includes a pathogen sensor 212 for detecting aerosols or surface pathogens in a manner similar to that described above in the earlier embodiments herein. The mobile unit 202 also includes sensors 214 for identifying surrounding objects to avoid collisions with objects while traversing space. These sensors 214 include radar, lidar, cameras, GPS, and other systems that provide environmental information to the mobile unit 202. The sensors 214 optionally work with a computer-aided design that provides a pre-programmed or predetermined travel path for the mobile unit 202. The mobile unit 202 also includes a processor 216. Referring to Figure 14, the mobile unit 202 returns to the docking station 220 after irradiating a certain area.

[0055] Referring to Figures 15-16, the mobile unit 202 may optionally include one or more robotic arms 218 extending from the main body 204, with the far-UVC lamps 208 located at or near the ends of the robotic arms 218. The robotic arms 218 may consist of articulated arms that can be controlled and / or articulated to direct the emitted ultraviolet light towards a specific and / or target surface or space. For example, the mobile unit 202 may maneuver the robotic arms 218 to direct the emitted ultraviolet light towards a surface where a detected pathogen is present. Some or all of the robotic arms 218 may include far-UVC lamps 208 so that the mobile unit 202 can simultaneously target multiple areas and / or combine the emitted ultraviolet light from multiple far-UVC lamps 208 to increase the intensity of ultraviolet light in a specific location configuration or area that would otherwise be shielded from, for example, a ceiling-mounted UV light source. The robotic arms 218 may enable irradiation of ultraviolet light in areas that would otherwise be difficult to reach. For example, the mobile unit 202 could target the seating arrangement in a stadium where it would be difficult to irradiate with ultraviolet light.

[0056] Referring to Figure 17, the mobile system 200 includes multiple mobile units 202 in multiple location configurations, communicating with a central control unit 222. The central control unit 222 monitors the activity of the mobile units 202 in each location configuration. The central control unit 222 includes a processor 224 and memory 226 for processing and storing pathogen information from each mobile unit 202. The central control unit 222 also communicates with the mobile units 202 in the system 200 to ensure that the mobile units 202 in a given location configuration cooperate with each other to effectively eliminate pathogens in that location configuration. The central control unit 222 may also communicate with various local, regional, national, or global health organizations, such as the Centers for Disease Control and Prevention ("CDC") 230 or the World Health Organization ("WHO") 232, or with the irradiated site 233, via a wide area network ("WAN") such as the Internet, and provide them with the collected information to help these organizations conduct contact tracing and / or enable them to take appropriate precautions.

[0057] Figure 18 shows an exemplary method for operating the mobile system 200. The mobile unit 202 waits until it receives a signal to deploy and irradiate an area (step 234). The signal to deploy may be an automatic signal instructing the mobile unit 202 to irradiate an area at regular intervals, or it may be a manual signal to irradiate an area as needed. After receiving the signal, the processor 216 deploys the mobile unit 202 and navigates the mobile unit 202 within the area while the lamp 208 emits far-UVC light to create an irradiation zone and eliminate pathogens within the area (step 236). The processor 216 may maneuver the mobile unit 202 around the environment based on a pre-configured navigation plan. The user may program (e.g., via a user device such as a mobile phone, laptop, desktop, or tablet) the boundaries of a space / room within which the mobile unit 202 will operate and select a location configuration to be sterilized. While within the defined space, the processor 216 may use the sensor 214 to autonomously navigate the mobile unit 202 to avoid objects present in the room while disinfecting the surface / space indicated by the selected surface / space.

[0058] The mobile unit 202 may fly at any height above the ground and below the ceiling to ensure both sufficient sterilization and object clearance (e.g., to avoid objects located on the ground, walls, and ceiling). For example, the user may specify the amount of distance (i.e., margin) from objects that the mobile unit 202 should maintain. The user may also specify the sterilization distance (i.e., the distance from the surface and / or space to be sterilized in which the mobile unit 202 should be located). For example, the mobile unit 202 may remain within 12 inches or 8 inches of the surface to be sterilized to ensure that sufficient intensity ultraviolet light is applied to the surface. The mobile unit 202 may ensure that the surface / space to be sterilized is irradiated for a threshold time before sterilizing other areas and / or before returning to the docking station 220. The threshold time may ensure that the surface / space is sufficiently sterilized by the ultraviolet light.

[0059] If, while the area is being irradiated, the pathogen sensor 212 on the mobile unit 202 detects and identifies any pathogens in the area surrounding the mobile unit 202 (step 238), the transmitter 217 in the mobile unit 202 transmits pathogen information (including the type of pathogen and the amount of pathogen detected) to the central control unit 222 (step 240), and the information is stored in the memory 226 of the central control unit. Preferably, the processor 216 uses the pathogen information to determine the time and efficiency required to remove the pathogen (step 242). Alternatively, the central control unit 222 may determine the time and efficiency required to remove the pathogen (step 242) and transmit that information to the mobile unit 202. The mobile unit 202 can be adjusted manually or automatically to increase the efficiency and / or timing and / or intensity of the light emission in order to remove the pathogen. The processor 216 (or central control unit 222) determines whether additional drones are needed to help contain and remove the area (for example, if a specific pathogen and / or high viral load is detected) (step 244). For example, if a high viral load of influenza is detected in a particular section of a stadium, multiple mobile units 202 can be sent to help contain and remove the area. Furthermore, if a specific viral load of a pathogen is detected, the sensitivity can also be set. If additional drones are needed, additional drones are requested to assist in the removal of the pathogen (step 246). If the biosensor 210 detects an individual in the area while the mobile unit 202 is illuminating the area, the processor 216 may adjust the timing and / or intensity of light emission from the lamp 208 in consideration of the presence of the individual, as described in the earlier embodiments herein.

[0060] After the mobile system 200 has completed the removal of pathogens (step 248), the mobile unit 202 returns to the docking station 220 (step 250) and awaits a signal for the next deployment (step 234). If the mobile unit 202 does not detect any pathogens in step 238, the mobile unit 202 performs standard irradiation of the area (step 252) before returning to the docking station (step 250) and awaiting a signal for the next deployment (step 234).

[0061] The mobile unit 202 may dock for recharging. Optionally, the mobile unit 202 may move continuously within a designated area and return to the designated area only after returning to the docking station 220 for recharging. The mobile unit 202 may also move within a designated area and / or disinfect over a set period of time. The unit may remain active while docked. For example, the docking station 220 may be positioned above an entrance, and the mobile unit 202 may monitor the activity at the entrance and determine whether / when disinfection is necessary. Alternatively, the docking station 220 may be positioned near an air vent to disinfect the air as it is pushed out, so as to effectively function as an upper chamber sterilizer when the mobile unit 202 is not positioned in mobile mode.

[0062] After the central control unit 222 receives pathogen information from each mobile unit 202 in step 240, the central control unit 222 stores the information in memory 226 and determines whether the level of pathogen detected in a given location configuration exceeds a threshold. If the pathogen level exceeds the threshold, the central control unit 222 sends a notification to the location configuration 233 to take precautionary measures. For example, if the location configuration is a school and the central control unit 222 detects a high level of a given pathogen in a particular classroom, the central control unit 222 may send a notification to the school so that the school can contact the parents of students in the target classroom. Preferably, the central control unit 222 interfaces with the school's control unit so that notifications are automatically sent to the students' parents.

[0063] Since the central control unit 222 stores pathogen information from multiple location configurations, it can also determine whether higher levels of a particular pathogen are present in multiple location configurations. For example, the central control unit 222 may determine that unexpected levels of H1N1 have been detected in a local grocery store, a post office, and a street-side office building. The central control unit 222 may transmit this information to one or more health agencies to assist them in conducting contact tracing and determining whether precautionary measures (such as news coverage, mandatory mask-wearing, stay-at-home orders, and isolation) need to be implemented.

[0064] The present invention is described illustratively, and in view of the above teachings, many modifications and variations of the invention are possible, including the removal of toxins from fluids. Therefore, it should be understood that reference numerals herein are for convenience only and are not limiting in any sense, and the invention can be carried out in ways other than those specifically described. Accordingly, the invention can be carried out in ways other than those specifically described within the scope of the claims described following this first disclosed embodiment.

[0065] (Note) (Note 1) Mobile unit and A lamp connected to the aforementioned mobile unit, which emits far ultraviolet-C (far UVC) light and thereby generates an irradiation zone, A processor connected to the mobile unit, which navigates the mobile unit within the predetermined area while the lamp is removing pathogens within the predetermined area; Equipped with, A system for removing pathogens.

[0066] (Note 2) The aforementioned mobile unit is the system described in Appendix 1, which consists of a drone.

[0067] (Note 3) The system according to Appendix 1, further comprising a robotic arm extending from the mobile unit, wherein the ramp is located at or near the end of the robotic arm.

[0068] (Note 4) The system according to Appendix 1, further comprising a pathogen sensor connected to the mobile unit, wherein the pathogen sensor detects and identifies pathogens in an area surrounding the mobile unit, the processor uses the identification of the pathogens to determine the time required to remove the pathogens, and the lamp illuminates the area surrounding the mobile unit for the time.

[0069] (Note 5) Central control unit and A transmitter connected to the aforementioned mobile unit, Furthermore, The transmitter transmits the identification of the pathogen to the central control unit. The central control unit is the system described in Appendix 4, which stores the identification of the pathogen in memory.

[0070] (Note 6) The system as described in Appendix 5, wherein the processor determines whether an additional mobile unit is needed to remove the pathogen, and if the processor determines that an additional mobile unit is needed, the processor sends a request to the central control unit to send the additional mobile unit to the area surrounding the mobile unit.

[0071] (Note 7) The system described in Appendix 4, wherein the pathogen sensor comprises a microbial sensor for detecting aerosol pathogens or a surface plasmon resonance sensor for detecting surface pathogens.

[0072] (Note 8) The system according to Appendix 4, wherein the processor determines an optimal light intensity and / or time for removing the pathogen, and the lamp irradiates the area using the optimal light intensity.

[0073] (Note 9) The system according to Appendix 4, further comprising a biosensor for detecting the presence of an individual in the irradiation zone, wherein the processor adjusts the light intensity and / or time when the biosensor detects the presence of the individual.

[0074] (Note 10) The system according to Appendix 9, wherein the biosensor is configured to determine whether or not an individual is in the illumination zone by detecting at least one of the individual's skin, eyes, heart rhythm, vein pattern, fingerprint, hand shape, DNA, voice pattern, iris pattern, and face detection.

[0075] (Note 11) Mobile unit and A pathogen sensor connected to the mobile unit, which detects and identifies pathogens in the area surrounding the mobile unit, A lamp connected to the aforementioned mobile unit, which emits ultraviolet-C (UVC) light and thereby generates an irradiation zone, A processor connected to the mobile unit, which determines the time required to remove the pathogen using the identification of the pathogen, Equipped with, The lamp illuminates the area around the moving unit for the duration of time. A system for removing pathogens.

[0076] (Note 12) The aforementioned mobile unit is a system described in Appendix 11, comprising a drone.

[0077] (Note 13) The system according to Appendix 11, further comprising a robotic arm extending from the mobile unit, wherein the ramp is located at or near the end of the robotic arm.

[0078] (Note 14) Central control unit and A transmitter connected to the aforementioned mobile unit, Furthermore, The transmitter transmits the identification of the pathogen to the central control unit. The central control unit is the system described in Appendix 11, which stores the identification of the pathogen in memory.

[0079] (Note 15) The system as described in Appendix 14, wherein the processor determines whether an additional mobile unit is needed to remove the pathogen, and if the processor determines that an additional mobile unit is needed, the processor sends a request to the central control unit to send the additional mobile unit to the area.

[0080] (Note 16) The system as described in Appendix 11, wherein the pathogen sensor comprises a microbial sensor for detecting aerosol pathogens or a surface plasmon resonance sensor for detecting surface pathogens.

[0081] (Note 17) The system according to Appendix 11, wherein the processor determines an optimal light intensity and / or time for removing the pathogen, and the lamp irradiates the area using the optimal light intensity.

[0082] (Note 18) The system according to Appendix 11, further comprising a biosensor for detecting the presence of an individual in the irradiation zone, wherein the processor adjusts the light intensity and / or time when the biosensor detects the presence of the individual.

[0083] (Note 19) The system according to Appendix 18, wherein the biosensor is configured to determine whether or not an individual is in the illumination zone by detecting at least one of the individual's skin, eyes, heart rhythm, vein pattern, fingerprint, hand shape, DNA, voice pattern, iris pattern, and face detection.

[0084] (Note 20) The system as described in Appendix 18, wherein the lamp emits far ultraviolet-C (far UVC) light, thereby creating an irradiation zone.

Claims

1. Mobile unit and A lamp connected to the aforementioned mobile unit, which emits far ultraviolet-C (far UVC) light with a wavelength limited to the range between 200 nm and 230 nm toward a space occupied by an individual, thereby creating an irradiation zone; A processor connected to the mobile unit, which navigates the mobile unit within the predetermined area while the lamp is removing pathogens within the predetermined area; Equipped with, A system for removing pathogens.

2. A mobile unit, A lamp connected to the aforementioned mobile unit, which emits far ultraviolet-C (far UVC) light and thereby generates an irradiation zone, A processor connected to the mobile unit, which navigates the mobile unit within the predetermined area while the lamp is removing pathogens within the predetermined area; Equipped with, The mobile unit further comprises a pathogen sensor connected thereto, the pathogen sensor detects and identifies pathogens in the area surrounding the mobile unit, the processor uses the identification of the pathogens to determine the time required to remove the pathogens, and the lamp illuminates the area surrounding the mobile unit for the time. Central control unit and A transmitter connected to the aforementioned mobile unit, Furthermore, The transmitter transmits the identification of the pathogen to the central control unit. The central control unit stores the identification of the pathogen in memory. A system for removing pathogens, wherein the processor determines whether an additional mobile unit is needed to remove the pathogen, and if the processor determines that an additional mobile unit is needed, the processor sends a request to the central control unit to send the additional mobile unit to the area surrounding the mobile unit.

3. The system according to claim 1 or 2, wherein the mobile unit is comprised of a drone.

4. The system according to claim 1 or 2, further comprising a robotic arm extending from the mobile unit, wherein the ramp is located at or near the end of the robotic arm.

5. The system according to claim 1, further comprising a pathogen sensor connected to the mobile unit, the pathogen sensor detecting and identifying pathogens in an area surrounding the mobile unit, the processor using the identification of the pathogens to determine the time required to remove the pathogens, and the lamp illuminating the area surrounding the mobile unit for the time.

6. Central control unit and A transmitter connected to the aforementioned mobile unit, Furthermore, The transmitter transmits the identification of the pathogen to the central control unit. The system according to claim 5, wherein the central control unit stores the identification of the pathogen in memory.

7. The system according to claim 2 or 5, wherein the pathogen sensor comprises a microbial sensor for detecting aerosol pathogens or a surface plasmon resonance sensor for detecting surface pathogens.

8. The system according to claim 2 or 5, wherein the processor determines an optimal light intensity and / or time for removing the pathogen, and the lamp irradiates the area using the optimal light intensity.

9. The system according to claim 8, further comprising a biosensor for detecting the presence of an individual in the irradiation zone, wherein the processor adjusts the light intensity and / or time when the biosensor detects the presence of the individual.

10. The system according to claim 9, wherein the biosensor is configured to determine whether or not an individual is in the irradiation zone by detecting at least one of the individual's skin, eyes, heart rhythm, vein pattern, fingerprint, hand shape, DNA, voice pattern, iris pattern, and face detection.

11. Mobile unit and A pathogen sensor connected to the mobile unit, which detects and identifies pathogens in the area surrounding the mobile unit, A lamp connected to the aforementioned mobile unit, which emits ultraviolet-C (UVC) light with a wavelength limited to the range between 200 nm and 230 nm toward a space occupied by an individual, thereby creating an irradiation zone; A processor connected to the mobile unit, which determines the time required to remove the pathogen using the identification of the pathogen, Equipped with, The lamp illuminates the area around the moving unit for the duration of time. A system for removing pathogens.

12. A mobile unit, A pathogen sensor connected to the mobile unit, which detects and identifies pathogens in the area surrounding the mobile unit, A lamp connected to the aforementioned mobile unit, which emits ultraviolet-C (UVC) light and thereby generates an irradiation zone, A processor connected to the mobile unit, which determines the time required to remove the pathogen using the identification of the pathogen, Equipped with, The lamp illuminates the area around the moving unit for the duration of time. Central control unit and A transmitter connected to the aforementioned mobile unit, Furthermore, The transmitter transmits the identification of the pathogen to the central control unit. The central control unit stores the identification of the pathogen in memory. A system for removing pathogens, wherein the processor determines whether an additional mobile unit is needed to remove the pathogen, and if the processor determines that an additional mobile unit is needed, the processor sends a request to the central control unit to send the additional mobile unit to the area.

13. The system according to claim 11 or 12, wherein the mobile unit is comprised of a drone.

14. The system according to claim 11 or 12, further comprising a robotic arm extending from the mobile unit, wherein the ramp is located at or near the end of the robotic arm.

15. Central control unit and A transmitter connected to the aforementioned mobile unit, Furthermore, The transmitter transmits the identification of the pathogen to the central control unit. The system according to claim 11, wherein the central control unit stores the identification of the pathogen in memory.

16. The system according to claim 11 or 12, wherein the pathogen sensor comprises a microbial sensor for detecting aerosol pathogens or a surface plasmon resonance sensor for detecting surface pathogens.

17. The system according to claim 11 or 12, wherein the processor determines an optimal light intensity and / or time for removing the pathogen, and the lamp irradiates the area using the optimal light intensity.

18. The system according to claim 17, further comprising a biosensor for detecting the presence of an individual in the irradiation zone, wherein the processor adjusts the light intensity and / or time when the biosensor detects the presence of the individual.

19. The system according to claim 18, wherein the biosensor is configured to determine whether or not an individual is in the irradiation zone by detecting at least one of the individual's skin, eyes, heart rhythm, vein pattern, fingerprint, hand shape, DNA, voice pattern, iris pattern, and face detection.

20. The system according to claim 18, wherein the lamp emits far ultraviolet-C (far UVC) light and thereby generates an irradiation zone.

Images