Ultraviolet Sterilization Pacing System and Method

Abstract

To provide a system and a method for efficiently sterilizing surfaces within an internal cabin of a vehicle, such as a commercial aircraft.SOLUTION: An ultraviolet (UV) light pacing system includes a wand assembly including a UV lamp that is configured to emit UV light. A user device 502 is configured to allow a user to select an item to be disinfected with the UV light. A pacing control unit 510 is in communication with the user device. The pacing control unit is configured to output a pacing signal to the user device. The pacing signal includes pacing information regarding an operation of the wand assembly to disinfect the item.SELECTED DRAWING: Figure 24

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to a sterilization system for use in sterilizing structures and areas within a vehicle, and more particularly to a system and method for pacing the movement of such a system.

[0002] This application is related to and claims the benefit of priority of U.S. Provisional Patent Application No. 63 / 037,630, filed on June 11, 2020, entitled "Ultraviolet Sterilization Pacing System and Method".

Background Art

[0003] Vehicles such as commercial aircraft are used to transport passengers between various locations. Currently, systems for disinfecting or sterilizing the surfaces within an aircraft using, for example, ultraviolet (UV) light are being developed. In known UV light sterilization methods, a broad-spectrum UVC light is emitted onto the surface of a structure to sterilize the surface.

[0004] Furthermore, known UV light sterilization systems are generally large and bulky and often require a fixed stationary infrastructure.

Summary of the Invention

[0005] There is a need for a system and method for efficiently sterilizing the surfaces within the interior cabin of a vehicle. There is also a need for a mobile, small, easy-to-use and safe system and method for sterilizing the surfaces within the interior cabin using UV light.

[0006] With these needs in mind, in some embodiments of the present disclosure, an ultraviolet (UV) light pacing system is provided. The system includes a wand assembly comprising a UV lamp configured to emit UV light. The user device is configured to enable a user to select an item to be disinfected with UV light. The pacing control unit communicates with the user device. The pacing control unit is configured to output a pacing signal to the user device. The pacing signal includes pacing information regarding the operation of the wand assembly for disinfecting the item.

[0007] In at least one embodiment, the pacing information includes instructions for operating the wand assembly to disinfect the item. The instructions are displayed on a display of the user device.

[0008] In at least one embodiment, the pacing information includes one or more audio cues for pacing the movement of the wand assembly during the disinfection of the item. The one or more audio cues are output by a speaker of the user device.

[0009] In at least one embodiment, the user device is a portable device. The user device may include the pacing control unit.

[0010] In at least one embodiment, the UV light pacing system also includes a pacing database for storing pacing data regarding the item. The pacing control unit communicates with the pacing database. The pacing control unit is configured to identify the pacing information from the pacing data. The user device may include the pacing database.

[0011] In at least one embodiment, the user device includes a display. The paging control unit is configured to display a paging menu screen on the display. The paging menu screen may include one or more training options.

[0012] In at least one embodiment, the paging information includes a wand movement speed.

[0013] Examples of the items include passenger seats, interior fixtures, luggage rack assemblies, components in the lavatory, components in the galley, or components in the flight deck.

[0014] In at least one embodiment, the UV lamp is configured to emit UV light having a wavelength between 200 nm and 230 nm. For example, the UV lamp is configured to emit UV light having a wavelength of 222 nm.

[0015] In at least one other embodiment, the UV lamp is configured to emit UV light having a wavelength of 230 nm to 280 nm. For example, the UV lamp is configured to emit UV light having a wavelength of 254 nm.

[0016] In some embodiments of the present disclosure, an ultraviolet (UV) light paging method is provided. The method includes using a wand assembly including a UV lamp for emitting ultraviolet (UV) light, selecting an item to be disinfected with the UV light by a user device, and outputting a paging signal to the user device from a paging control unit communicating with the user device. The paging signal includes paging information regarding an operation of the wand assembly for disinfecting the item.

[0017] In at least one embodiment, the pacing information includes instructions for operating the wand assembly to disinfect the item. The method further includes displaying the instructions on a display of the user device.

[0018] In at least one embodiment, the pacing information includes one or more audio cues for pacing the movement of the wand assembly during disinfection of the item. The method further includes outputting the one or more audio cues by a speaker of the user device.

[0019] In at least one embodiment, the UV light pacing method further includes storing pacing data regarding the item in a pacing database, communicatively connecting the pacing control unit and the pacing database, and identifying the pacing information from the pacing data by the pacing control unit.

Brief Description of the Drawings

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Mode for Carrying Out the Invention

[0021] The above summary of the invention and the detailed description of the following embodiments will be more clearly understood by referring to the accompanying drawings. In this specification, an element or step described in the singular does not necessarily exclude a plurality of elements or steps. Also, referring to "one embodiment" is not intended to exclude the existence of another embodiment incorporating the features described in that embodiment. Furthermore, unless otherwise specified, an embodiment "comprising" or "having" one element or a plurality of elements with a specific property may additionally include another element without that property.

[0022] In some embodiments of the present disclosure, a portable sterilization system for disinfecting surfaces in the interior cabin of a vehicle or the like is provided. The portable sterilization system includes a wand assembly and a backpack assembly. The wand assembly includes a housing, a UV lamp, a reflector, a mount for fixing the UV lamp to the housing, an air inlet for feeding air into the UV lamp, and a telescopic handle configured to extend the reach of the wand assembly. The backpack assembly includes a body or housing, a power source, one or more batteries (e.g., rechargeable batteries), a plug for charging the backpack, a blower, a carbon filter, an exhaust port, and a harness for allowing an operator to wear the portable sterilization system.

[0023] The effectiveness of a UV sterilization system is determined by the dose (e.g., expressed in mJ / cm 2 required to kill the target pathogen). The dose is a function of the optical power (in watts) of the UV light and the exposure time. In some embodiments of the present disclosure, a training pacing voice system is provided that provides a user with a mark (e.g., an audio cue) to indicate an appropriate time to expose to the sterilizing UV light. According to an embodiment of the present disclosure, the user can pace the movement of the wand assembly during sterilization to emit an appropriate amount of UV light for disinfection. Embodiments of the present disclosure can guide the user according to the required dose of irradiation and / or specific items to be sterilized.

[0024] In some embodiments of the present disclosure, a method for pacing the UV disinfection of a predetermined surface is provided. The method includes calculating the speed of the wand and loading the speed into a computer program. The program can provide an audio cue regarding the speed at which the wand is to be moved and can provide feedback to allow the user to maintain the speed.

[0025] The voice queue may be a series of voice files for providing voice instructions and pace distribution regarding the area to be cleaned, and may include sounds such as a metronome sound or a cymbal sound indicating the end of the sweep period. The voice files may be loaded into a computer program such as a mobile app and function as a voice coach to instruct the user on how long to hold the UV wand in the area to be disinfected. The computer program may include a mobile app or other computer programs for managing the voice files.

[0026] To calculate the time required for surface disinfection, the speed of the wand is calculated by inputting known parameters such as the distance to the surface, the irradiance of the wand, the disinfection energy required for surface sterilization, the wand length, and the wand width.

[0027] FIG. 1 shows a perspective view of a portable sterilization system 100 worn by an operator 101 according to an embodiment of the present disclosure. The portable sterilization system 100 includes a wand assembly 102 connected to a backpack assembly 104, and the backpack assembly is detachably fixed to the operator via a harness 105. The wand assembly 102 includes a sterilization head 106 connected to a handle 108. In at least one embodiment, the sterilization head 106 is movably connected to the handle 108 via a coupler 110.

[0028] As shown in FIG. 1, the wand assembly 102 is in a storage position. The wand assembly 102 is detachably fixed to a part of the backpack assembly 104 via one or more rails, clips, latches, belts, ties, etc. in the storage position.

[0029] FIG. 2 shows a perspective side top view of a wand assembly 102 according to an embodiment of the present disclosure. The sterilization head 106 is connected to the handle 108 via a coupler 110. The sterilization head 106 includes a shroud 112 having an outer cover 114 that extends from a proximal end 116 to a distal end 118. As described herein, the shroud 112 includes a UV lamp.

[0030] The port 120 extends from the proximal end 116. The port 120 is connected to a hose 122, which is connected to the backpack assembly 104 (shown in FIG. 1). The hose 122 includes an electrical cord, cable, wire, or the like that connects a power source or power supply (e.g., one or more batteries) within the backpack assembly 104 (shown in FIG. 1) to the UV lamp 140 within the shroud 112. Optionally, the electrical cord, cable, wire, or the like may be outside of the hose 122. The hose 122 also includes a blower line (e.g., an air tube) that fluidly connects the internal chamber of the shroud 112 to a blower, vacuum generator, air filter, or the like within the backpack assembly 104.

[0031] The coupler 110 is fixed, for example, to the outer cover 114 of the shroud 112 near the proximal end 116. The coupler 110 may include a fixed beam 124 fixed to the outer cover 114 via one or more fasteners, adhesives, etc. An extension beam 126 extends outward from the fixed beam 124, whereby the handle 108 is spaced apart from the shroud 112. A bearing assembly 128 extends from the extension beam 126 on the side opposite to the fixed beam 124. The bearing assembly 128 includes one or more bearings, rails, etc., by which the handle 108 can linearly translate in the direction of arrow A with respect to the coupler 110 or pivot in the direction of arc B about a pivot axis. Optionally, in addition to or instead of the handle 108 being connected to the bearing assembly 128 (for example, the handle 108 may be fixed to the coupler 110), the fixed beam 124 may include a bearing assembly that translates the sterilization head 106 in the direction of arrow A or rotates (for example, pivots) it in the direction of arc B.

[0032] In at least one embodiment, the handle 108 may include a rod, pole, beam, or similar element 130, which may be longer than the shroud 112. Optionally, the rod 130 may be shorter than the shroud 112. One or more grips 132 are fixed to the rod 130. The grips 132 are configured to be gripped and held by an operator. The grips 132 may include an ergonomic tactile portion 134.

[0033] Optionally, the size and shape of the wand assembly 102 may be different from those shown. For example, in at least one embodiment, the handle 108 may be fixed to the shroud 112. Further, the handle 108 may be configured to move with respect to itself and / or the shroud 112, or may not be so configured. For example, the handle 108 and the shroud 112 may be integrally formed and formed as a single unit.

[0034] In at least one embodiment, the wand assembly 102 is not connected to the backpack assembly. For example, the wand assembly 102 is a stand-alone unit having a power source such as one or more batteries. In other examples, the wand assembly 102 is connected to the case assembly.

[0035] FIG. 3 shows a perspective rear view of the wand assembly 102 shown in FIG. 2. FIG. 4 shows a perspective side view of the wand assembly 102 shown in FIG. 2. Referring to FIGS. 3 and 4, the handle 108 is pivotally connected to the coupler 110 via a bearing 136, which has a pivot axis 138 that pivotally connects the handle 108 and the coupler 110. The handle 108 may further be configured to translate linearly inside and outside the bearing 136. For example, the handle 108 may be configured to telescopically extend and contract inside and outside. Optionally or alternatively, in at least one embodiment, the handle 108 may include a telescoping body that allows the handle 108 to extend outwardly or contract inwardly.

[0036] FIG. 5 shows a perspective view of the portable sterilization system 100 in a compact deployed state according to one embodiment of the present disclosure. As shown in FIG. 5, the wand assembly 102 is removed from the backpack assembly 104 (shown in FIG. 1) and is in a compact deployed state. The wand assembly 102 is connected to the backpack assembly 104 by a hose 122. In the compact deployed state, the sterilization head 106 is fully retracted relative to the handle 108.

[0037] FIG. 6 shows a perspective view of a portable sterilization system 100 with a sterilization head 106 in an extended state according to an embodiment of the present disclosure. To extend the sterilization head 106 relative to the handle 108, the sterilization head 106 is slid outwardly relative to the handle 108 in the direction of arrow A' (alternatively, the handle 108 is slid backward relative to the sterilization head 106). As described above, the sterilization head 106 can translate linearly in the direction of arrow A' relative to the handle 108 via a coupler 110. By extending the sterilization head 106 outwardly as shown in FIG. 6, the portable sterilization system 100 can be easily reached to a distant location. Alternatively, the sterilization head 106 does not have to translate linearly relative to the handle 108.

[0038] FIG. 7 shows a perspective view of a portable sterilization system 100 with a sterilization head 106 in an extended state and also with a handle 108 in an extended state according to an embodiment of the present disclosure. To reach even further, the handle 108 is configured to translate linearly via a telescoping portion or the like, whereby the sterilization head 106 can reach even further out. Alternatively, the handle 108 does not have to be configured to be telescoping.

[0039] In at least one embodiment, the handle 108 may include a lock 109. The lock 109 is selectively operable to fix the handle 108 in a desired extended (or retracted) position.

[0040] FIG. 8 shows a perspective view of a portable sterilization system 100 in a state where a sterilization head 106 is rotating with respect to a handle 108 according to an embodiment of the present disclosure. As described above, the sterilization head 106 is configured to rotate with respect to the handle 108 via a coupler 110. By rotating the sterilization head 106 with respect to the handle 108, the sterilization head 106 can be moved to a desired position and swept, or can reach a place that is difficult to reach when the sterilization head 106 is firmly fixed to the handle 108. Alternatively, the sterilization head 106 may not be rotatable with respect to the handle 108.

[0041] FIG. 9 shows a perspective end view of a UV lamp 140 and a reflector 142 of a sterilization head 106 according to an embodiment of the present disclosure. The UV lamp 140 and the reflector 142 are fixed within a shroud 112 (e.g., shown in FIG. 2) of the sterilization head 106. In at least one embodiment, the reflector 142 is fixed to the lower surface 141 of the shroud 112 by one or more adhesives or the like. As another example, the reflector 142 is a component integrated with the shroud 112. For example, the reflector 142 may be or form the lower surface 141 of the shroud 112. The reflector 142 forms a reflecting surface 143 (such as a surface formed of Teflon or a mirror surface) configured to reflect the UV light emitted by the UV lamp 140 outward. In at least one example, the shroud 112 may include a shell formed of glass fiber, or the reflector 142 may be formed of Teflon having a reflectivity of 98%.

[0042] The reflector 142 may extend along the entire length of the lower surface 141 of the shroud 112. Optionally, the reflector 142 may extend along a length shorter than the entire length of the lower surface 141 of the shroud 112.

[0043] The UV lamp 140 may extend along its entire length (or substantially along its entire length, such as between the end 116 and the end 118). The UV lamp 140 is fixed to the reflector 142 and / or the shroud 112 via, for example, one or more brackets. The UV lamp 140 includes one or more UV emitters such as one or more bulbs or light-emitting elements (e.g., light-emitting diodes). In at least one embodiment, the UV lamp 140 is configured to emit UV light in the far UV spectrum, such as a wavelength between 200 nm and 230 nm. In at least one embodiment, the UV lamp 140 is configured to emit UV light having a wavelength of 222 nm. For example, the UV lamp 140 may include a 300 W bulb configured to emit UV light having a wavelength of 222 nm.

[0044] As shown, the reflector 142 includes flat upright sidewalls 144 connected to each other via an upper curved wall 146. The upper curved wall 146 may curve outward away from the UV lamp 140. For example, the upper curved wall 146 may have a parabolic cross-section and / or profile.

[0045] The straight sidewalls 144 can reflect the UV light emitted from the UV lamp 140 as desired or condense it at a desired position. Alternatively, the sidewalls 144 may not be straight and flat.

[0046] FIG. 10 shows a perspective end view of the UV lamp 140 and the reflector 142 of the sterilization head according to an embodiment of the present disclosure. The reflector 142 shown in FIG. 10 is similar to the reflector 142 shown in FIG. 9, except that the sidewall 144 is inclined outward from the upper curved wall 146.

[0047] FIG. 11 shows a perspective end view of the UV lamp 140 and the reflector 142 of the sterilization head according to an embodiment of the present disclosure. In this embodiment, the sidewall 144 may curve according to the curvature of the upper curved wall 146.

[0048] FIG. 12 shows a perspective top view of the sterilization head 106. FIG. 13 shows a perspective bottom view of the sterilization head 106. FIG. 14 shows an axial cross-sectional view of the sterilization head 106 taken along line 14-14 of FIG. 12. Referring to FIGS. 12-14, air 150 is drawn into the sterilization head 106 through one or more openings 152 (or simply open chambers) of the shroud 112. The air 150 is drawn into the sterilization head 106 through, for example, a vacuum generator in the backpack assembly 104 (shown in FIG. 1). The air 150 is drawn into the shroud 112 and cools the UV lamp 140 while passing over and around the UV lamp 140. The air 150 enters the port 120 and passes through the hose 122, for example, through the air tube of the hose 122. The air 150 not only cools the UV lamp 140, but also removes ozone that may be generated by the operation of the UV lamp 140 within the shroud 112. The air 150 may be drawn into an air filter, such as an activated carbon filter, within the backpack assembly 104.

[0049] In at least one embodiment, the portable sterilization system 100 may also include an alternative ozone mitigation system. As an example, the ozone mitigation system can be disposed on the shroud 112 or other parts of the system and may include an inert gas tank or a face inert gas system as disclosed in U.S. Patent No. 10,232,954.

[0050] In particular, referring to FIG. 13, a bumper 153 may be fixed to the exposed lower peripheral edge 155 of the shroud 112. The bumper 153 can be formed of an elastic material such as rubber, other elastomeric materials, open-cell foam materials or closed-cell foam materials. The bumper 153 can protect the sterilization head 106 from damage when the sterilization head 106 comes into unintended contact with a surface. The bumper 153 can also protect the surface from damage.

[0051] The plurality of openings 152 may be arranged at intervals around the lower surface of the shroud 112 so as not to directly view the UV lamp 140. For example, the openings 152 may be arranged in a lower portion spaced apart from the UV lamp 140.

[0052] In particular, referring to FIG. 14, the sterilization head 106 may include a cover plate 154 below the UV lamp 140. The cover plate 154 may be formed of, for example, glass and may be configured to filter the UV light emitted by the UV lamp 140. The UV lamp 140 may be fixed to an internal chamber 156 formed between the reflector 142 and the cover plate 154. In at least one embodiment, the cover plate 154 may include a far-UV bandpass filter. For example, the cover plate 154 may be a 222 nm bandpass filter that filters the UV light emitted by the UV lamp 140 to a wavelength of 222 nm. In this way, the UV light emitted from the sterilization head 106 can be emitted at a wavelength of 222 nm.

[0053] Referring to FIGS. 13 and 14, the cover plate 154 can be connected to the shroud 112 by a peripheral portion 157 (such as a peripheral portion made of titanium with a thickness of 0.020 inches). The peripheral portion 157 can disperse the impact load on itself and around it.

[0054] In at least one embodiment, a distance measuring light emitting diode (LED) 159 (an example of a distance measuring light source) is arranged close to the end of the UV lamp 140. The distance measuring LED 159 can be used, for example, to specify a desired distance to the structure to be sterilized. In at least one embodiment, the distance measuring LED 159 may be provided on the surface or inside of the peripheral portion 157 and / or the cover plate 154.

[0055] FIG. 15 shows a perspective end view of a UV lamp 140 fixed to a mounting bracket or clamp 160 according to an embodiment of the present disclosure. Each end of the UV lamp 140 may be connected to a mounting bracket or clamp 160 that secures the UV lamp 140 to a shroud 112 (shown in FIGS. 12 - 14). A cushioning material such as a thin (e.g., 0.040 - inch) sheet of silicon may be disposed between the end of the UV lamp 140 and the bracket 160. Optionally, the UV lamp 140 may be fixed to the shroud 112 via brackets or clamps of different sizes and shapes than those shown. As another example, the UV lamp 140 may be fixed to the shroud 112 via an adhesive or fastener, etc.

[0056] FIG. 16 shows an exploded perspective view of a backpack assembly 104 according to an embodiment of the present disclosure. The backpack assembly 104 includes a front wall 170 that connects to a rear shell 172, a base 174, and an upper lid (upper wall) 176. An internal chamber 178 is formed between the front wall 170, the rear shell 172, the base 174, and the upper wall 176. One or more batteries 180, such as rechargeable lithium batteries, are housed in the internal chamber 178. The internal chamber 178 further houses an air generation subsystem 182. The air generation subsystem 182 is in fluid communication with an air tube within a hose 122 (e.g., shown in FIG. 2). The air generation subsystem 182 may include an air flow device such as a vacuum generator or a blower. The air flow device is configured to, for example, generate an air flow for cooling the UV lamp, draw air into the backpack assembly 104 from the sterilization head 106, discharge air through an exhaust pipe, or draw out and remove the generated ozone from the shroud 112.

[0057] Within the backpack assembly 104, one or more air filters 183, such as a carbon filter, are disposed. The air filter 183 communicates with an air tube or a similar air duct or air line that sends air into the backpack assembly 104 via the hose 122. The air filter 183 is configured to filter the air drawn into the backpack assembly 104 from the shroud 112. For example, the air filter 183 is configured to remove, inactivate, or neutralize ozone.

[0058] The battery 180 and / or the power supply unit within the backpack assembly 104 supplies the operating power for the UV lamp 140 of the sterilization head 106 (e.g., shown in FIG. 2). The upper wall 176 may be removably connected to the front wall 170 and the rear shell 172. For example, by removing the upper wall 176, the battery 180 can be accessed (for battery removal and / or recharging, etc.). Additional space for storing supplies, additional batteries, additional components, etc. may be provided within the backpack assembly 104. In at least one embodiment, the front wall 170, the rear shell 172, the base 174, and the upper wall 176 may be formed of glass fiber epoxy.

[0059] FIG. 17 shows a perspective front view of a harness 105 connected to the backpack assembly 104 according to an embodiment of the present disclosure. The harness 105 may include shoulder straps 190 for the operator to comfortably wear the backpack assembly 104, and / or a waist or hip belt or strap 192.

[0060] Referring to FIGS. 1-17, during operation, an operator can walk through the area while wearing the backpack assembly 104. When the operator finds the structure to be sterilized, the operator grasps the handle 108 and arranges the sterilization head 106 as desired, such as by extending and / or rotating the sterilization head 106 relative to the handle 108. Next, the operator drives the UV lamp 140, for example, by pressing an activation button provided on the handle 108, to emit sterilizing UV light onto the structure. When the UV lamp 140 operates, air 150 is drawn into the shroud 112 to cool the UV lamp 140 and to vent the generated ozone into the backpack assembly 104. The vented ozone is filtered by the air filter 183.

[0061] With the extendable wand assembly 102, the sterilization head 106 can reach remote areas, such as the entire set of three passenger seats, from any row in the interior cabin of a commercial aircraft.

[0062] FIG. 18 shows the ultraviolet light spectrum. Referring to FIGS. 1-18, in at least one embodiment, the sterilization head 106 is configured to emit sterilizing UV light within a far UV spectrum, such as between 200 nm and 230 nm (by operating the UV lamp 140). In at least one embodiment, the sterilization head 106 emits sterilizing UV light having a wavelength of 222 nm.

[0063] FIG. 19 shows a perspective front view of an aircraft 210 according to one embodiment of the present disclosure. The aircraft 210 includes a propulsion system 212 having, for example, engines 214. Optionally, the propulsion system 212 may include a greater number of engines 14 than shown in the illustrated example. The engines 214 are mounted on the wings 216 of the aircraft 210. In other embodiments, the engines 214 may be mounted on the fuselage 218 and / or the tail 220. The tail 220 can also support a horizontal stabilizer 222 and a vertical stabilizer 224.

[0064] The fuselage 218 of the aircraft 210 defines an internal cabin 230, which includes a flight deck or cockpit, one or more work sections (e.g., a galley and a carry-on baggage area), one or more passenger sections (e.g., a first-class section, a business-class section, and a coach section), one or more lavatories, etc. The internal cabin 230 includes one or more lavatory systems, lavatory units, or lavatories as described herein.

[0065] Instead of an aircraft, embodiments of the present disclosure can be used with various other vehicles such as automobiles, buses, locomotives, trains, ships, etc. Further, embodiments of the present disclosure may be used with respect to fixed structures such as commercial or residential buildings.

[0066] FIG. 20A shows a top view of the internal cabin 230 of an aircraft according to an embodiment of the present disclosure. The internal cabin 230 may be provided inside the fuselage 232 of the aircraft, such as the fuselage 218 shown in FIG. 19. For example, the internal cabin 230 is defined by one or more fuselage walls. The internal cabin 230 includes a plurality of sections such as a front section 233, a first-class section 234, a business-class section 236, a forward galley station 238, an extended economy or coach section 240, a standard economy or coach section 242, and a rear section 244, which may include a plurality of lavatories and galley stations. Note that the internal cabin 230 may include more or fewer sections than shown in the illustrated example. For example, the internal cabin 230 may not include a first-class section and may include more or fewer galley stations than shown in the illustrated example. Each of these sections is separated by a cabin partition area 246, which may include a class partition assembly between aisles 248.

[0067] As shown in FIG. 20A, the internal cabin 230 includes two passages 250 and 252 that connect to the rear section 244. Optionally, the internal cabin 230 may include fewer or more passages than shown in the illustrated example. For example, the internal cabin 230 may include a single passage that connects to the rear section 244 through the center of the internal cabin 230.

[0068] Passages 248, 250, and 252 extend to an exit path or door passage 260. Exit doors 262 are disposed at both ends of the exit path 260. The exit path 260 may be orthogonal to passages 248, 250, and 252. The internal cabin 230 may include more than one exit path 260 at a plurality of positions different from those shown. The portable sterilization system 100 described with reference to FIGS. 1-18 can be used to sterilize various structures within the internal cabin 230, such as passenger seats, monuments, luggage rack assemblies, components in lavatories, galley equipment and components, etc.

[0069] FIG. 20B shows a top view of an aircraft internal cabin 280 according to an embodiment of the present disclosure. The internal cabin 280 is an example of the internal cabin 230 shown in FIG. 19. The internal cabin 280 may be provided inside the fuselage 281 of the aircraft. For example, the internal cabin 280 is defined by one or more fuselage walls. The internal cabin 280 includes a plurality of sections such as a main cabin 282 having passenger seats 283 and a rear section 285 located behind the main cabin 282. Note that the internal cabin 280 may include more or fewer sections than shown in the illustrated example.

[0070] The internal cabin 280 may include a single passage 284 that connects to the rear section 285. This single passage 284, for example, connects to the rear section 285 through the center of the internal cabin 280. For example, this single passage 284 is arranged coaxially with the central longitudinal plane of the internal cabin 280.

[0071] Passageway 284 extends to the exit route or door passageway 290. Exit doors 292 are disposed at both ends of the exit route 290. The exit route 290 may be orthogonal to the passageway 284. The interior cabin 280 may include more exit routes than shown in the illustrated example. The portable sterilization system 100 described with reference to FIGS. 1 - 18 can be used to sterilize various structures within the interior cabin 230, such as passenger seats, interior fixtures, luggage rack assemblies, components in the lavatory, galley facilities and components, etc.

[0072] FIG. 21 shows a perspective interior view of an aircraft interior cabin 300 according to an embodiment of the present disclosure. The interior cabin 300 includes an outer wall 302 connected to a ceiling 304. A window 306 is formed in the outer wall 302. The floor 308 supports rows of seats 310. As shown in FIG. 21, row 312 can include two seats 310 on each side of the passageway 313. Note that row 312 may include more or fewer seats 310 than shown in the illustrated example. In addition to this, the interior cabin 300 may include more passageways than shown in the illustrated example.

[0073] On both sides of the passageway 313, between the outer wall 302 and the ceiling 304, a passenger service unit (PSU) 314 is fixed. The PSU 314 is scattered between the front end and the rear end of the interior cabin 300. For example, one PSU 314 may be provided above each seat 310 in row 312. Each PSU 314 includes a housing 316 above each seat 310 (or seat group) in row 312, and the housing generally includes a vent, a reading light, an oxygen mask drop panel, a crew call button, and other similar controls.

[0074] The overhead luggage rack assembly 318 is fixed to the ceiling 304 and / or the outer wall 302 above and inside the PSU 314 on both sides of the aisle 313. The overhead luggage rack assembly 318 is fixed above the seat 310. The overhead luggage rack assembly 318 extends between the front end and the rear end of the interior cabin 300. Each luggage rack assembly 318 may include a pivotable container / box 320 pivotally fixed to a strongback (hidden from view in FIG. 21). The overhead luggage rack assembly 318 may be provided above and inside the lower surface of the PSU 314. The overhead luggage rack assembly 318 is configured to pivot open, for example, to receive passengers' carry-on luggage and personal items.

[0075] As used herein, the term "outboard" means a position farther from the central longitudinal plane 322 of the interior cabin 300 compared to other components. Also, the term "inboard" means a position closer to the central longitudinal plane 322 of the interior cabin 300 compared to other components. For example, the lower surface of the PSU 314 is disposed outboard of the luggage rack assembly 318.

[0076] The portable sterilization system 100 described with reference to FIGS. 1 - 18 can be used to sterilize various structures within the interior cabin 300.

[0077] When not in use, the portable sterilization system 100 may be stored in a closet, a galley cart bay, or a galley cart within the interior cabin of a vehicle, for example.

[0078] FIG. 22 shows a perspective interior view of a dressing room 330 in a vehicle interior cabin, such as the interior cabin described herein. The dressing room 330 is an example of an enclosed space, interior furnishings, or room in a vehicle interior cabin or the like. As described above, the dressing room 330 may be provided inside an aircraft. Optionally, the dressing room 330 may be provided in various other vehicles. In other embodiments, the dressing room 330 may be disposed within a fixed structure such as a commercial or residential building. The dressing room 330 includes a toilet 332, a cabinet 334, and a base floor 331 that supports a sink 336 or washbasin. The dressing room 330 may have an arrangement different from that shown. The dressing room 330 may include a greater or lesser number of components than the illustrated example. The portable sterilization system 100 described with reference to FIGS. 1-18 can be used to sterilize various structures, components, and surfaces within the dressing room 330.

[0079] FIG. 23 shows a flowchart of a portable sterilization method according to an embodiment of the present disclosure. The method includes emitting UV light having a wavelength between 200 nm and 230 nm from a sterilization head including an ultraviolet (UV) lamp onto a surface (400), and disinfecting the surface by the emitting (402). In at least one embodiment, the emitting (400) includes emitting UV light having a wavelength of 222 nm.

[0080] In at least one embodiment, the portable sterilization method further includes movably coupling a handle to the sterilization head. For example, the movably coupling includes one or both of a linear translation or a swivel of the sterilization head with respect to the handle.

[0081] In at least one embodiment, the portable sterilization method includes coupling a backpack assembly to the sterilization head via a hose.

[0082] Referring to FIGS. 1 to 23, by using the portable sterilization system 100, surfaces that are frequently touched in the flight deck and the interior cabin can be safely and effectively sterilized in a timely and cost-effective manner. Through UV disinfection, the interior cabin can be quickly and effectively disinfected during breaks in the flight, etc. In at least one embodiment, by using the portable sterilization system 100, the cleaning process can be supplemented, such as after manual cleaning.

[0083] FIG. 24 shows a schematic block diagram of a UV light pacing system 500 according to an embodiment of the present disclosure. The UV light pacing system 500 includes a wand assembly 102 that is part of, for example, the UV sterilization system 100 (shown in FIG. 1). The wand assembly 102 includes a sterilization head as described herein. The sterilization head includes a UV lamp configured to emit sterilizing UV light having a wavelength between 220 nm and 230 nm, etc. The wand assembly 102 may include a handle, and the sterilization head may be movable relative to the handle. Optionally, the wand assembly 102 may include a relatively fixed sterilization head and handle.

[0084] The UV light pacing system 500 also includes a user device 502. In at least one embodiment, the user device 502 is a portable terminal such as a smartphone or a smart tablet. As another example, the user device 502 may be a computer such as a desktop computer or a laptop computer.

[0085] The user device 502 includes a user interface 504, a display 506, and a speaker 508, and includes, for example, a speaker formed or connected to the user device 502, and headphones connected to the user device 502 via a wired or wireless connection. The user interface 504 includes input devices such as a keyboard and a mouse. The display 506 includes a monitor or a screen. In at least one embodiment, the user interface 504 and the display 506 are integrated as a touch screen interface.

[0086] The paging control unit 510 communicates with the user device 502 via one or more wired or wireless connections, etc. For example, the paging control unit 510 can communicate with the user device 502 via Bluetooth, WiFi, and / or an Internet connection. The paging control unit 510 may be provided separately from the user device 502. In at least one other embodiment, the user device 502 may include the paging control unit 510. For example, the paging control unit 510 may be housed in the housing of the user device 502.

[0087] The paging control unit 510 also communicates with a paging database 512 that stores paging data 514 via one or more wired or wireless connections, etc. For example, the paging control unit 510 can communicate with the paging database 512 via Bluetooth, WiFi, and / or an Internet connection. The paging control unit 510 may be provided separately from the paging database 512. In at least one other embodiment, the paging control unit 510 may be provided in the same location as the paging database 512. For example, the paging control unit 510 and the paging database 512 may be included in a common computer workstation. As another example, the paging control unit 510 and the paging database 512 may be included in the user device 502.

[0088] The pacing database 512 stores pacing data 514 regarding one or more items to be disinfected. The pacing information regarding the item selected for disinfection is identified from the pacing data 514. For example, the pacing data 514 includes pacing information regarding many items to be disinfected. The items to be disinfected are selected via the user device 502. The pacing control unit 510 analyzes the pacing data 514 for the selected item to identify the pacing information of the item stored in the pacing data 514.

[0089] The pacing data 514 may include information related to ultraviolet (UV) disinfection information for various items (such as surfaces and components, etc.) and / or pathogens. For example, the pacing data 514 includes the UV disinfection irradiation dose for a specific item related to the pathogen to be inactivated.

[0090] In operation, the user communicates with the pacing control unit 510 via the user device 502. The user can select an item to be disinfected. The pacing control unit 510 analyzes the item to be disinfected by examining the pacing data 514 stored in the pacing database 512. Next, the pacing control unit 510 outputs a pacing signal 516 including pacing information for disinfecting the item to the user device 502. At least a part of the pacing information may be displayed on the display. The pacing information may include the distance to the surface of the item, the disinfection time, and the speed at which the wand assembly 102 is swept or moved relative to the item. The pacing information may also include a pacing audio signal output via the speaker 508. The pacing audio signal output by the speaker 508 is an audio cue that enables the user to synchronize the pace at which the wand assembly 102 is swept or moved. In this way, the pacing control unit 510 enables the user to disinfect the item effectively and efficiently.

[0091] As described herein, the UV light pacing system 500 includes a wand assembly 102 with a UV lamp configured to emit UV light. The user device 502 is configured to enable a user to select an item to be disinfected with UV light. The pacing control unit 510 communicates with the user device 502. The pacing control unit 510 is configured to output a pacing signal 516 to the user device 502. The pacing signal 516 includes pacing information regarding the operation of the wand assembly 102 for disinfecting the item. For example, the pacing information includes instructions (displayed on the display 506) for operating the wand assembly 102 to disinfect the item. As another example, the pacing information includes one or more audio cues (output from the speaker 508) for pacing the movement of the wand assembly 102 during the disinfection of the item. In at least one embodiment, the pacing information includes instructions displayed on the display 506 and audio cues output from the speaker 508.

[0092] In at least one embodiment, paging data 514 including paging information is stored in a paging database 512. The paging control unit 510 is configured to analyze the stored paging data 514. Further, the paging data 514 can be shared with others at any time. For example, the paging data 514 can be stored in relation to maintenance records and histories of completed UV exposure. By considering the paging data 514, the area to be preferentially disinfected may be determined. In at least one embodiment, the paging data 514 can be stored simultaneously or later together with sensor data regarding feedback on the performance of a robot or a human. The sensor data may be basic and simple data for reducing data storage requirements, or may be complex data such as video data indicating a cleaning process. Thus, the paging data 514 may indicate feedback information regarding the surface being cleaned, the effect of the cleaning, and the surface requiring cleaning.

[0093] As used herein, elements represented by terms such as "control unit", "central processing unit", "CPU", "computer", etc. may include a processor-based or microprocessor-based system. Such a system may include a microcontroller, a reduced instruction set computer (RISC), an application specific integrated circuit (ASIC), a logic circuit, and other circuits or processors having hardware, software, or a combination thereof capable of performing the functions described herein. These are merely examples and do not limit the definition and / or meaning of the terms. For example, the paging control unit 510 may include one or more processors configured to control operations as described herein.

[0094] The pacing control unit 510 is configured to execute a set of instructions stored in one or more data storage units or elements (e.g., one or more memories) in order to process data. For example, the pacing control unit 510 may include or be connected to one or more memories. The data storage unit may further store data or other information as desired or necessary. The data storage unit may be in the form of an information source or a physical memory element within the processing machine.

[0095] The set of instructions may include various commands that instruct the pacing control unit 510 as a processing machine to perform specific operations such as methods and processes in various embodiments of the components described herein. The set of instructions may be in the form of a software program. The software may take various forms such as system software or application software. Further, the software may be in the form of a collection of individual programs, a subset of programs within a larger program, or a part of a program. The software may further include modular programming in the form of object-oriented programming. The processing of input data by the processing machine may be performed in response to a user command, in response to the previous processing result, or in response to a request from another processing machine.

[0096] The drawings of the embodiments in this specification show one or more control units or processing units, such as a pacing control unit 510. The processing unit or control unit represents a circuit, circuitry, or a part thereof, which can be realized as hardware having associated instructions (e.g., software stored in a tangible non-transitory computer-readable storage medium such as a computer hard drive, ROM, RAM, etc.) and performing the operations described herein. The hardware can include hardwired state machine circuitry that is wired to perform the functions described herein. Optionally, the hardware may contain and / or be connected to one or more logic-based devices such as a microprocessor, a processor, a controller, etc. Optionally, the pacing control unit 510 may represent a processing circuitry composed of one or more of, for example, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a microprocessor, etc. The circuits in various embodiments can be configured to execute one or more algorithms for performing the functions described herein. One or more algorithms can include aspects of the embodiments of the present disclosure, whether or not explicitly shown in a flowchart or method.

[0097] As used herein, the terms "software" and "firmware" are synonymous and include any computer program stored in a data storage unit (e.g., one or more memories) for execution by a computer. Such memories include RAM memory, ROM memory, EPROM memory, EEPROM memory, and non-volatile RAM (NVRAM) memory. The types of data storage units described above are merely examples and do not limit the types of memories that can be used for storing computer programs.

[0098] FIG. 25 shows a front view of a user device 502 according to an embodiment of the present disclosure. As shown, the user device 502 is a portable smart device (e.g., a smartphone or a smart tablet) including a touch screen interface 520 integrating a user interface 504 and a display 508.

[0099] Referring to FIGS. 24 and 25, the paging control unit 510 displays a paging menu screen 522 on the user device 502. The paging menu screen 522 enables the user to select a specific paging mode. For example, the paging menu screen 522 displays a first training option 524 such as for the cabin of a specific type of aircraft, and a disinfection paging option 526 for the cabin. The paging menu screen 522 can also display a second training option 528 such as for different areas inside the aircraft, and a disinfection paging option 530 for the area.

[0100] The paging control unit 510 provides training options and disinfection paging options. These are for giving the user an audio cue indicating the time suitable for irradiating areas inside the aircraft with the disinfection UV light emitted by the wand assembly 102. In this way, the user can pace the movement of the wand assembly 102 during disinfection by, for example, an audio signal output from the paging control unit 510 via the speaker 508 to ensure an accurate disinfection irradiation dose of the UV light in units of mJ / cm 2 and thus ensure an accurate disinfection irradiation dose of the UV light in units of mJ / cm.

[0101] The pacing information included in the pacing signal 516 output by the pacing control unit 510 to the user device (and also displayed on the display 506 and / or output via the speaker 508) includes the distance of the wand assembly 102 from the surface to be disinfected, the time of UV irradiation of the surface, and the sweep speed of the wand assembly 102 (e.g., the speed at which the wand assembly 102 is swept back and forth across the surface). In at least one embodiment, the sweep speed is guided by an audio signal output via the speaker 508.

[0102] The training option can include an audio file about the speed at which the wand assembly 102 is swept or moved, and detailed instructions for effectively and efficiently sterilizing items. By listening to such an audio file, the user can know the appropriate sweep speed of the wand assembly 102 for a specific item. The disinfection pacing option may include an audio file about the speed at which the wand assembly 102 is swept or moved without detailed instructions.

[0103] FIG. 26 shows a perspective view of the wand assembly 102 with respect to the control device 531 in the flight deck 532 according to an embodiment of the present disclosure. The control device 531 is an example of an item to be disinfected by UV light. Other examples include seats, luggage rack assemblies, walls, ceilings, galley carts, counters, cabinets, toilets, sinks, floors, etc. The wand assembly 102 is arranged at a specific distance indicated by the pacing information from the control device 531 and is swept in various directions such as the direction of arrow A with respect to the control device 531.

[0104] Referring to FIGS. 24 to 26, the user selects an item to be disinfected via the user device 502. The pacing control unit 510 obtains pacing data 514 regarding the selected item from the pacing database 512. Next, the pacing control unit 510 outputs a pacing signal 516 including pacing information about the item (e.g., the control device 531) to the user device 502. The pacing information displayed on the display 506 and / or output via the speaker 508 assists the user in sweeping the wand assembly 102 over the item to effectively and efficiently sterilize and disinfect the item.

[0105] FIG. 27 shows a spreadsheet 540 of pacing information 542 according to an embodiment of the present disclosure. The pacing signal 516 (shown in FIG. 24) output to the user device 502 by the pacing control unit 510 includes the pacing information 542. The pacing information 542 shown in FIG. 27 is merely exemplary.

[0106] The pacing information 542 includes a wand movement speed 546. Referring to FIGS. 24 and 27, the pacing control unit 510 can output an audio signal (e.g., a repeating beat) set to a pace suitable for disinfection as indicated by the wand movement speed 546. With an audio signal output via the speaker 508, the user can move the wand assembly 102 at an appropriate pace to effectively perform item disinfection.

[0107] Referring to FIGS. 24 to 27, the user device 502 may include an application (an "app") related to surface disinfection stored in the memory. This app can be displayed on the display 506. As described herein, the pacing control unit 510 may operate the app. The app can output an audio file regarding the selected item to be disinfected.

[0108] As an example, the pacing control unit 520 outputs a pacing signal 516 that includes instructions and pacing for the center flight control console on the flight deck. The pacing signal 516 is received by the user device 502. The pacing signal 516 includes an audio file that provides guidance to the user to sweep or move the wand assembly 102. The total sweep time is the time intended to supply a specific dose to the entire central console in order to disinfect the central console effectively and efficiently. For example, the instruction can indicate (in text or voice signal) to "start from the rear of the central console, sweep forward at a constant pace, and take 10 seconds to reach the front end of the console". Next, the instruction may perform a countdown by indicating "Start: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1. End of console." by voice output. Next, the instruction may indicate "Move the wand to the armrest of the right seat...". A metronome-type beat may be played every second, and an effect sound such as a cymbal strike or other appropriate sound may be played at the end of the sweep period.

[0109] Continuing to refer to FIGS. 24-27, in some embodiments of the present disclosure, a method for pacing the UV disinfection of a predetermined surface is provided. This method includes calculating a wand speed. The wand speed is calculated by the user selecting an item to be disinfected via the user device and the pacing control unit 510 obtaining pacing data 514 for the selected item from the pacing database 512. The pacing data 514 includes the wand speed. The pacing data 514 output by the pacing control unit 512 provides an audio cue (output via the speaker 508) regarding the speed at which to move the wand assembly 102, and may further provide feedback (e.g., an audio instruction regarding the sweep time) so that the user can maintain this speed.

[0110] In at least one embodiment, the voice queue may include a series of voice files that provide voice instructions and pacing for the area to be cleaned, or may include tones such as a metronome sound or a cymbal sound that indicates the end of the sweep period. The voice files may be loaded into a computer program such as a mobile app and function as a voice coach to instruct the user on the time to hold the UV wand over the area to disinfect the area to be cleaned. The computer program may include a mobile app or other computer program for managing the voice files.

[0111] In at least one embodiment, the speed of the wand is calculated by inputting known parameters such as the distance to the surface, the irradiance of the wand, the disinfection energy required to sterilize the surface, the wand length, and the wand width in order to calculate the time required to disinfect the surface.

[0112] FIG. 28 shows a flowchart of a UV pacing method according to an embodiment of the present disclosure. Referring to FIGS. 24 and 28, at 600, the operator selects an item to be disinfected with UV light on the user device 504. At 602, the pacing control unit 510 obtains pacing data 514 regarding the item to be disinfected from the pacing database 512. At 604, the pacing control unit 510 outputs a pacing signal 516 including pacing information regarding the item to be disinfected and one or more voice queues to the user device 502. At 606, the user device 502 displays the pacing information and / or outputs one or more voice queues to assist the user in moving the wand assembly 102 to effectively and efficiently disinfect the item.

[0113] As described herein, in embodiments of the present disclosure, for example, a system and method for efficiently sterilizing surfaces, components, structures, etc. in the interior cabin of a vehicle are provided. Further, in embodiments of the present disclosure, a small, easy-to-use, and safe system and method for sterilizing surfaces in the interior cabin using UV light are provided.

[0114] Furthermore, the present disclosure includes embodiments according to the following appendices.

[0115] Appendix 1. A wand assembly comprising a UV lamp configured to emit ultraviolet (UV) light, a user device configured such that a user can select an item to be disinfected with the UV light, and a pacing control unit in communication with the user device, the pacing control unit being configured to output a pacing signal to the user device, the pacing signal including pacing information regarding the operation of the wand assembly for disinfecting the item, a UV light pacing system.

[0116] Appendix 2. The pacing information includes an instruction regarding the operation of the wand assembly for disinfecting the item, the instruction being displayed on a display of the user device, the UV light pacing system according to Appendix 1.

[0117] Appendix 3. The pacing information includes one or more audio cues for pacing the movement of the wand assembly during the disinfection of the item, the one or more audio cues being output by a speaker of the user device, the UV light pacing system according to Appendix 1 or 2.

[0118] Appendix 4. The user device is a portable device, the UV light pacing system according to any one of Appendices 1 to 3.

[0119] Appendix 5. The user device is the UV light pacing system according to any one of Appendices 1 to 4, including the pacing control unit.

[0120] Appendix 6. The UV light pacing system according to any one of Appendices 1 to 5, further including a pacing database for storing pacing data related to the item, wherein the pacing control unit communicates with the pacing database, and the pacing control unit is configured to identify the pacing information from the pacing data.

[0121] Appendix 7. The UV light pacing system according to any one of Appendices 1 to 6, wherein the user device includes the pacing database.

[0122] Appendix 8. The UV light pacing system according to any one of Appendices 1 to 7, wherein the user device includes a display, and the pacing control unit is configured to display a pacing menu screen on the display.

[0123] Appendix 9. The UV light pacing system according to Appendix 8, wherein the pacing menu screen includes one or more training options.

[0124] Appendix 10. The UV light pacing system according to any one of Appendices 1 to 9, wherein the pacing information includes a wand movement speed.

[0125] Appendix 11. The UV light pacing system according to any one of Appendices 1 to 10, wherein the item includes a passenger seat, interior equipment, a luggage rack assembly, components in a lavatory, components in a galley, or components in a flight deck.

[0126] Appendix 12. The UV light pacing system according to any one of Appendices 1 to 11, wherein the UV lamp is configured to emit UV light having a wavelength between 200 nm and 230 nm.

[0127] Supplementary Note 13. The UV light pacing system according to any one of Supplementary Notes 1 to 11, wherein the UV lamp is configured to emit UV light having a wavelength of 222 nm.

[0128] Supplementary Note 14. The UV light pacing system according to any one of Supplementary Notes 1 to 11, wherein the UV lamp is configured to emit UV light having a wavelength in the range of 230 nm to 280 nm.

[0129] Supplementary Note 15. The UV light pacing system according to any one of Supplementary Notes 1 to 11, wherein the UV lamp is configured to emit UV light having a wavelength of 254 nm.

[0130] Supplementary Note 16. A UV light pacing method comprising: using a wand assembly comprising a UV lamp for emitting ultraviolet (UV) light; selecting, by a user device, an item to be disinfected with the UV light; outputting, by a pacing control unit communicating with the user device, a pacing signal to the user device, the pacing signal including pacing information regarding an operation of the wand assembly for disinfecting the item.

[0131] Supplementary Note 17. The UV light pacing method according to Supplementary Note 16, wherein the pacing information includes an instruction regarding an operation of the wand assembly for disinfecting the item, and the method further includes displaying the instruction on a display of the user device.

[0132] Supplementary Note 18. The UV light pacing method according to Supplementary Note 16 or 17, wherein the pacing information includes one or more audio cues for pacing the movement of the wand assembly during disinfection of the item, and the method further includes outputting the one or more audio cues by a speaker of the user device.

[0133] Supplementary Note 19. Saving pacing data regarding the item in a pacing database; Communicably connecting the pacing control unit and the pacing database; The UV light pacing method according to any one of Appendices 16 to 18, further comprising specifying the pacing information from the pacing data by the pacing control unit.

[0134] Appendix 20. The UV light pacing method according to any one of Appendices 16 to 19, further comprising displaying a pacing menu screen on the display by the pacing control unit.

[0135] Appendix 21. The UV light pacing method according to Appendix 20, wherein the display includes displaying one or more training options.

[0136] Appendix 22. The UV light pacing method according to any one of Appendices 16 to 21, wherein the use includes operating the UV lamp to emit UV light having a wavelength between 200 nm and 230 nm.

[0137] Appendix 23. The UV light pacing method according to any one of Appendices 16 to 21, wherein the use includes operating the UV lamp to emit UV light having a wavelength of 222 nm.

[0138] Appendix 24. The UV light pacing method according to any one of Appendices 16 to 21, wherein the use includes operating the UV lamp to emit UV light having a wavelength between 230 nm and 280 nm.

[0139] Appendix 25. The UV light pacing method according to any one of Appendices 16 to 21, wherein the use includes operating the UV lamp to emit UV light having a wavelength of 254 nm.

[0140] Appendix 26. A wand assembly comprising a UV lamp configured to emit ultraviolet (UV) light; A user device configured to allow a user to select an item to be disinfected with the UV light and comprising a display and a speaker. A pacing database for storing pacing data related to the item, A pacing control unit that communicates with the user device and the pacing database, the pacing control unit is configured to identify the pacing information from the pacing data, the pacing control unit is configured to output a pacing signal to the user device, the pacing signal includes pacing information related to the operation of the wand assembly for disinfecting the item, and the pacing information is Instructions displayed on the display of the user device for operating the wand assembly to disinfect the item, One or more voice cues for pacing the movement of the wand assembly during the disinfection of the item, the one or more voice cues are output by the speaker of the user device, a UV light pacing system.

[0141] To describe embodiments of the present disclosure, terms related to various spaces and directions such as up, bottom, down, center, side, horizontal, vertical, front, etc. have been used, but these terms are used only with respect to the directions shown in the drawings. These directions can be reversed, rotated, or changed in other ways, in which case the upper part becomes the lower part, or vice versa, or the horizontal direction becomes the vertical direction.

[0142] In this specification, a structure, limitation, or element "configured to" perform a certain process or operation is one that has been specifically formed, configured, or adapted structurally to correspond to the process or operation. For the sake of clarity and to avoid doubt, it should be added that what can merely be modified to perform the process or operation does not fall within what is referred to here as "configured to" perform the process or operation.

[0143] Note that the above description is illustrative and not intended to be limiting. For example, the above embodiments (and / or aspects thereof) can be used in combination with each other. In addition, many modifications are possible without departing from the scope of the various embodiments of the present disclosure, adapting these teachings to specific situations and materials. The dimensions and types of materials described herein are for clarifying the parameters in the various embodiments of the present disclosure, and these embodiments are not limiting and are merely exemplary embodiments. Many other embodiments will be apparent to those skilled in the art upon consideration of the above description. Therefore, the scope of the various embodiments of the present disclosure should be determined with reference to the appended claims and also to the full scope of equivalents recognized in these claims. The terms "comprising" and "being" used in the appended claims and the detailed description herein are used as plain English expressions having the same meaning as "including" and "in" respectively. Also, terms such as "first", "second", "third", etc. are used as mere labels for distinction and do not impose numerical requirements on the objects referred to thereby.

[0144] The description herein discloses various embodiments including a best mode using examples, and makes the various embodiments of the present disclosure practicable for those skilled in the art, including the fabrication and use of any device or system and the execution of incorporated methods. The patentable scope of the various embodiments of the present disclosure is defined by the claims, and may include other examples that those skilled in the art can envision. Such other examples should be considered to be encompassed by the claims if they have components that do not differ from the literal language of the claims or include equivalent components that have only non-essential differences from the literal language of the claims.

Claims

1. A wand assembly comprising a UV lamp configured to emit ultraviolet (UV) light; A backpack assembly removably coupled to the wand assembly; A user device configured to allow a user to select an item to be disinfected with the UV light; A pacing control unit in communication with the user device, the pacing control unit being configured to output a pacing signal to the user device, the pacing signal including pacing information regarding the operation of the wand assembly for disinfecting the item, a UV light pacing system, The wand assembly includes an elongated disinfection head having the UV lamp and an elongated handle coupled to the disinfection head via a coupling means; The coupling means is configured to selectively pivot the handle between a first position and a second position relative to the disinfection head. In the first position, the handle is pivoted in a direction approaching the disinfection head to fold the wand assembly for attachment to the backpack assembly, and in the second position, the handle is pivoted in a direction away from the disinfection head to extend the length of the wand assembly for disinfection operation, a UV light pacing system.

2. The pacing information includes an instruction regarding the operation of the wand assembly for disinfecting the item, the instruction being displayed on a display of the user device, the UV light pacing system according to claim 1.

3. The pacing information includes one or more audio cues for pacing the movement of the wand assembly during disinfection of the item, the one or more audio cues being output by a speaker of the user device, the UV light pacing system according to claim 1 or 2.

4. The UV light pacing system according to claim 1, 2, or 3, wherein the user device is a portable device.

5. The UV light pacing system according to any one of claims 1 to 4, wherein the user device includes the pacing control unit.

6. The UV light pacing system according to any one of claims 1 to 5, further including a pacing database for storing pacing data related to the item, wherein the pacing control unit communicates with the pacing database, and the pacing control unit is configured to identify the pacing information from the pacing data.

7. The UV light pacing system according to claim 6, wherein the user device includes the pacing database.

8. The UV light pacing system according to any one of claims 1 to 7, wherein the user device includes a display, and the pacing control unit is configured to display a pacing menu screen on the display.

9. The UV light pacing system according to claim 8, wherein the pacing menu screen includes one or more training options.

10. The UV light pacing system according to any one of claims 1 to 9, wherein the pacing information includes a wand movement speed.

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