System and method for verifying valid movement of a wand assembly in an ultraviolet (UV) light cleaning system

Abstract

To provide: a system and a method for verifying that motion of a wand assembly having a UV lamp is sufficient to sanitize a surface of a component; and a system and a method for ensuring that the correct dosage of UV light is delivered to a surface to effectively sanitize the surface.SOLUTION: A system 200 and a method include a wand assembly 102 including a sanitizing head 106 having an ultraviolet (UV) lamp configured to emit UV light to sanitize a surface of a component. The wand assembly further includes a first monitored member. The system also includes a second monitored member. A verification control unit 206 is in communication with the first monitored member 202 and the second monitored member 204. The verification control unit is configured to detect a speed of the wand assembly based on a comparison of the first monitored member to the second monitored member.SELECTED DRAWING: Figure 19

Description

[Technical Field]

[0001] Related Applications This application is related to and claims the benefit of priority to U.S. Provisional Patent Application No. 63 / 055,389, filed July 23, 2020, entitled "Systems and Methods of Verifying Effective Motion of a Wand Assembly of an Ultraviolet (UV) Light Sanitizing System."

[0002] FIELD OF THE INVENTION Embodiments of the subject disclosure herein relate generally to cleaning systems, and more particularly to systems and methods for verifying that movement of a wand assembly of a cleaning system is sufficient to clean a surface of a component. [Background technology]

[0003] Vehicles such as commercial aircraft are used to transport passengers between various locations. Systems are currently being developed to disinfect or otherwise clean surfaces within aircraft, for example, using ultraviolet (UV) light. In known UV light disinfection methods, broad-spectrum UVC light is emitted onto a structure to clean the surface of the structure.

[0004] Portable cleaning systems having wand assemblies for cleaning components are under development. The wand assemblies of portable cleaning systems include UV lamps configured to emit UV light. Typically, an operator moves the wand assembly toward a surface of a component to clean the surface. However, an individual operator typically does not know whether to move the wand assembly too quickly or too slowly to effectively and efficiently clean the surface.

[0005] Generally, the manual process for disinfecting surfaces using handheld devices is one that operates with varying degrees of consistency. Summary of the Invention

[0006] What is needed is a system and method for verifying that the movement of a wand assembly with a UV lamp is sufficient to clean the surface of a component. Additionally, what is needed is a system and method for ensuring that the correct dose of UV light is delivered to the surface to effectively clean the surface.

[0007] Addressing this need, certain embodiments of the subject disclosure herein provide a system including a wand assembly including a sanitizing head having an ultraviolet (UV) lamp configured to emit UV light to clean a surface of a component. The wand assembly further includes a first monitored member. The system further includes a second monitored member. A verification control unit communicates with one or both of the first monitored member and the second monitored member. The verification control unit is configured to detect a speed of the wand assembly based on a comparison of the first monitored member and the second monitored member.

[0008] In at least one example, the verification control unit determines whether the speed of the wand assembly is sufficient to clean the surface based on a comparison of the speed of the wand assembly with pacing data stored in memory. The verification control unit outputs a warning signal in response to the speed being outside a predetermined range defined by the pacing data. The verification control unit outputs an adequate speed signal in response to the speed being within a predetermined range defined by the pacing data.

[0009] In at least one embodiment, the wand assembly further includes an indicator configured to indicate the speed status of the wand assembly. For example, the indicator may include at least one light and / or a speaker. As another example, the indicator may include a screen that displays text related to the speed.

[0010] In at least one embodiment, the second monitored member is secured to a stationary structure within the interior cabin of the vehicle, and in at least one other embodiment, the second monitored member is secured to a portion of the backpack assembly that is coupled to the wand assembly.

[0011] In at least one embodiment, one of the wand assembly, the backpack assembly, or the case assembly includes the verification control unit.

[0012] In at least one embodiment, the verification control unit compares the speed of the wand assembly at a range from the surface with pace data stored in memory to determine whether the speed of the wand assembly is sufficient to clean the surface.

[0013] In at least one embodiment, one of the first monitored member and the second monitored member is a radio frequency (RF) receiver and the other of the first monitored member and the second monitored member is an RF emitter.

[0014] In at least one alternative embodiment, one of the first monitored member and the second monitored member is a camera, and the other of the first monitored member and the second monitored member is an optical target.

[0015] In at least one alternative embodiment, one of the first monitored member and the second monitored member is an infrared source, and the other of the first monitored member and the second monitored member is an infrared optical target.

[0016] In at least one alternative embodiment, one of the first monitored member and the second monitored member is a LIDAR detector, and the other of the first monitored member and the second monitored member is a LIDAR optical target.

[0017] In at least one alternative embodiment, the first monitored component is an accelerometer.

[0018] In at least one embodiment, the UV lamp is configured to emit UV light within the far UV spectrum, for example, the UV lamp is configured to emit UV light at a wavelength of 222 nm.

[0019] In at least one other embodiment, the UV lamp is configured to emit UV light within the UVC spectrum, for example, the UV lamp is configured to emit UV light at a wavelength of 254 nm.

[0020] Certain embodiments of the subject disclosure herein provide a method including using a wand assembly including a cleaning head having an ultraviolet (UV) lamp configured to emit UV light to clean a surface of a component, the wand assembly further including a first monitored member; communicatively coupling a verification control unit to the first monitored member and the second monitored member; and detecting, by the verification control unit, a speed of the wand assembly based on a comparison of the first monitored member and the second monitored member.

[0021] In at least one embodiment, the method further includes determining, by the verification control unit, whether the speed of the wand assembly is sufficient to clean the surface based on a comparison of the speed of the wand assembly to pace data stored in memory. In at least one embodiment, the method further includes outputting, by the verification control unit, a warning signal in response to the speed being outside a predetermined range defined by the pace data. In at least one embodiment, the method further includes outputting, by the verification control unit, an adequate speed signal in response to the speed being within a predetermined range defined by the pace data.

[0022] In at least one embodiment, the method further includes indicating the speed status of the wand assembly with an indicator on the wand assembly.

[0023] In at least one embodiment, the method further includes securing the second monitored member to a stationary structure within the interior cabin of the vehicle.

[0024] In at least one embodiment, the method further includes securing a second monitored member to a portion of the backpack assembly that is coupled to the wand assembly.

[0025] In at least one embodiment, the method further includes comparing, by the verification control unit, the speed of the wand assembly at a distance from the surface with pace data stored in the memory to determine whether the speed of the wand assembly is sufficient to clean the surface.

[0026] The features, functions, and advantages described above in the "Summary" may be realized alone in various embodiments or may be combined in yet other embodiments, further details of which can be seen with reference to the following description and drawings.

[0027] Certain embodiments of the subject disclosure herein provide a system including a first monitored element configured to be coupled to a wand assembly including a cleaning head having an ultraviolet (UV) lamp configured to emit UV light to clean a surface of a component. The system further includes a second monitored element. A verification control unit communicates with one or both of the first monitored element and the second monitored element. The verification control unit is configured to detect a speed of the wand assembly based on a comparison of the first monitored element and the second monitored element. [Brief explanation of the drawings]

[0028] [Figure 1] 1 illustrates a perspective view of a portable cleansing system worn by a care individual, according to one embodiment of the subject disclosure herein. [Figure 2] 1 shows a side top perspective view of a wand assembly according to one embodiment of the subject disclosure herein. [Figure 3] 3 shows a rear perspective view of the wand assembly of FIG. 2. [Figure 4] 3 shows a side perspective view of the wand assembly of FIG. 2. [Figure 5] 1 illustrates a perspective view of a portable cleansing system in a collapsed position, according to one embodiment of the subject disclosure herein. [Figure 6] 1 illustrates a perspective view of a portable cleaning system with a cleaning head in an extended position, according to one embodiment of the subject disclosure herein. [Figure 7] 1 shows a perspective view of a portable cleaning system with the cleaning head in an extended position and the handle in an extended position according to one embodiment of the subject disclosure herein. [Figure 8] 1 illustrates a perspective view of a portable cleaning system with the cleaning head rotated relative to the handle, according to one embodiment of the subject disclosure herein. [Figure 9] 1 illustrates a perspective end view of a UV lamp and reflector of a cleaning head according to one embodiment of the subject disclosure herein. [Figure 10]1 illustrates a perspective end view of a UV lamp and reflector of a cleaning head according to one embodiment of the subject disclosure herein. [Figure 11] 1 illustrates a perspective end view of a UV lamp and reflector of a cleaning head according to one embodiment of the subject disclosure herein. [Figure 12] FIG. 1 shows a top perspective view of the cleaning head. [Figure 13] FIG. 1 shows a bottom perspective view of the cleaning head. [Figure 14] 14 shows an axial cross-sectional view of the cleaning head taken along line 14-14 of FIG. 12. [Figure 15] 1 shows an end perspective view of a UV lamp secured to a mounting bracket according to one embodiment of the subject disclosure herein. [Figure 16] 1 shows an exploded perspective view of a backpack assembly according to one embodiment of the subject disclosure herein. [Figure 17] 1 illustrates a front perspective view of a harness coupled to a backpack assembly according to one embodiment of the subject disclosure herein. [Figure 18] The ultraviolet spectrum is shown. [Figure 19] 1 shows a schematic block diagram of a wand speed verification system according to one embodiment of the subject disclosure herein; [Figure 20] 1 illustrates a perspective view of a portable cleansing system worn by a care individual, according to one embodiment of the subject disclosure herein. [Figure 21] 1 illustrates a flow diagram of a method for one-speed verification, according to one embodiment of the subject disclosure herein. [Figure 22] 1 illustrates a front perspective view of an aircraft according to one embodiment of the subject disclosure herein. [Figure 23A] 1 illustrates a top view of an interior cabin of an aircraft, according to one embodiment of the subject disclosure herein. [Figure 23B] 1 illustrates a top view of an interior cabin of an aircraft, according to one embodiment of the subject disclosure herein. [Figure 24] 1 illustrates an interior perspective view of an interior cabin of an aircraft, according to one embodiment of the subject disclosure herein. [Figure 25] 1 shows an interior perspective view of a lavatory in an interior cabin of an aircraft. DETAILED DESCRIPTION OF THE INVENTION

[0029] The foregoing summary and the following detailed description of certain embodiments will be better understood when read in conjunction with the accompanying drawings. As used herein, it should be understood that the singular and the words "a" or "an" preceding an element or step do not necessarily exclude a plurality of such elements or steps. Furthermore, references to "one embodiment" are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, examples "comprising" or "having" one or more elements having certain conditions may include additional elements that do not have those conditions (unless expressly stated otherwise).

[0030] Certain embodiments of the subject disclosure herein provide sanitizing systems and methods that include an ultraviolet (UV) lamp (e.g., an excimer lamp) that emits UV light in the far-UV light spectrum (e.g., at a wavelength of 222 nanometers (nm)) that neutralizes (e.g., kills) pathogens (e.g., viruses and bacteria) but poses no risk to humans. In one example, the UV lamp may be used to detoxify and kill pathogens within an interior cabin. Embodiments of the subject disclosure herein provide safer and more effective sanitizing than certain known UV systems. The UV lamp may be used in a portable sanitizing system or a stationary sanitizing system. For example, operating the UV lamp to emit sanitizing UV light having a wavelength of 222 nm may be used in both portable and stationary systems. In at least one other embodiment, the UV lamp emits UV light having a wavelength other than that within the far-UV light spectrum. For example, the UV lamp may be configured to emit UV light within the UVC spectrum (eg, at a wavelength of 254 nm).

[0031] Certain embodiments of the subject disclosure herein provide a system for verifying the speed of a wand assembly to ensure the correct dose of cleansing light is delivered to a surface. The system includes a radio frequency (RF) receiver located at a fixed location (e.g., on the operator or at a fixed location in the environment, such as within the interior cabin of a vehicle). An RF emitter is located on the wand assembly (e.g., on the sanitizing head of the wand assembly). A verification control unit (e.g., one or more processors) is located in a backpack or in the case of the portable cleansing system. A memory communicates with or is part of the processor. The speed of the wand assembly is determined by integrating the location of the cleansing head relative to the fixed location. An indicator is activated to notify the operator of the actual wand speed, and activation of the indicator may include a pace light or an audio signal on the wand assembly.

[0032] Alternatively, the system may include a camera at a fixed location and an optical target on the wand. Alternatively, an infrared source may be at a fixed location and an infrared optical target may be located on the wand assembly. Alternatively, a light detection and ranging (LIDAR) detector may be at a fixed location and a LIDAR optical target may be on the wand assembly. Alternatively, an accelerometer may be located on the wand assembly.

[0033] In at least one embodiment, the speed at which the wand assembly is moved is determined by the distance of the wand to the surface for a certain lamp power: the operator selects a distance (e.g., 4 inches (10.16 cm) from the surface to be disinfected), and the system determines the speed required to achieve the correct dose of UV light.

[0034] In at least one embodiment, the predetermined dose of UV light is determined by the lamp power, the distance to the target, and the exposure time, with the speed of movement of the wand assembly determining the exposure time.

[0035] The location of the wand assembly relative to a fixed point (such as on the operator) may be determined using one or more of: RF emitter triangulation, using an RF emitter on the wand and a receiver located in the wand operator's backpack, chest harness, or other wearable device; RF emitter triangulation, using an RF emitter located in the wand operator's backpack, chest harness, or other wearable device and an RF receiver in the wand assembly; optical triangulation, using a camera located on the wand operator's chest harness (or other wearable device) and a visible optical target on the wand; optical triangulation, using a solid-state LIDAR located on the wand operator's chest harness (or other wearable device) and a visible LIDAR optical target on the wand assembly; and / or optical triangulation, using a solid-state infrared source located on the wand operator's chest harness (or other wearable device) and a visible infrared optical reflector on the wand.

[0036] The location of the cleaning head relative to a fixed point within the vehicle or building can be determined using RF emitter triangulation using an RF receiver in the wand assembly and an emitter at a fixed location within the vehicle or building. The speed of the cleaning head can be determined directly by integrating acceleration at the cleaning head using an accelerometer in the cleaning head.

[0037] The actual speed of the wand relative to the desired speed may be communicated to the operator using one or more of a pace light on the wand assembly, which lights up in different colors and flashing rates depending on whether the speed is correct, too fast, or too slow, and / or an audible beep, which sounds and beats at different rates depending on whether the speed is correct, too fast, or too slow.

[0038] 1 shows a perspective view of a portable cleansing system 100 worn by a caregiver individual 101, according to one embodiment of the subject disclosure herein. The portable cleansing system 100 includes a wand assembly 102 coupled to a backpack assembly 104 that is removably secured to the caregiver individual via a harness 105. The wand assembly 102 includes a cleansing head 106 coupled to a handle 108. In at least one embodiment, the cleansing head 106 is movably coupled to the handle 108 through a coupler 110.

[0039] In at least one alternative embodiment, the portable cleansing system 100 may not be worn by the personnel individual 101. For example, the portable cleansing system 100 may include a case assembly configured to open and close. The case assembly may store the wand assembly 102 (when not in use). The case assembly may be opened to allow the wand assembly 102 to be removed and operated.

[0040] 1, wand assembly 102 is in a stowed position, in which wand assembly 102 is removably secured to a portion of backpack assembly 104 (e.g., via one or more tracks, clips, latches, belts, lanyards, and / or the like).

[0041] In at least one alternative embodiment, the wand assembly 102 is housed in a case assembly in the storage position. For example, the wand assembly 102 is housed in a closed case assembly in the storage position. The case assembly can be opened to allow the wand assembly 102 to be removed and placed.

[0042] 2 shows a side, top perspective view of a wand assembly 102, according to one embodiment of the subject disclosure herein. The cleaning head 106 is coupled to a handle 108 through a coupler 110. The cleaning head 106 includes a shroud 112 having an outer cover 114 extending from a proximal end 116 to a distal end 118. The shroud 112 houses a UV lamp, as described herein.

[0043] Optionally, wand assembly 102 may include a cleaning head 106 connected to a stationary handle. Additionally, wand assembly 102 may be sized and shaped differently than shown.

[0044] A port 120 extends from the proximal end 116. The port 120 is coupled to a hose 122, which is coupled to the backpack assembly 104 (see FIG. 1). The hose 122 contains an electrical cord, cable, wiring, etc. that connects a power source or power supply (e.g., one or more batteries) within the backpack assembly 104 (see FIG. 1) to the UV lamp 140 within the shroud 112. Optionally, the electrical cord, cable, wiring, etc. may be external to the hose 122. In at least one embodiment, the hose 122 also contains an air supply conduit (e.g., an air tube) that fluidly connects the interior space of the shroud 112 with a blower, vacuum generator, air filter, and / or the like within the backpack assembly 104.

[0045] Coupler 110 is secured to an outer cover 114 of shroud 112, e.g., proximal to proximal end 116. Coupler 110 may include a fixed beam 124 secured to outer cover 114, e.g., via one or more fasteners, adhesives, and / or the like. An extension beam 126 extends outwardly from fixed beam 124, spacing handle 108 from shroud 112. A bearing assembly 128 extends from extension beam 126 on the opposite side of fixed beam 124. Bearing assembly 128 includes one or more bearings, raceways, and / or the like that allow handle 108 to translate linearly relative to coupler 110 in the direction of arrow A and / or pivot about a pivot axis in the direction of arc B. Optionally, the fixed beam 124 may include a bearing assembly in addition to or instead of the handle 108 coupled to the bearing assembly 128, which allows the cleansing head 106 to translate in the direction of arrow A and / or rotate (e.g., swivel) in the direction of arc B (e.g., the handle 108 may be fixed to the coupler 110).

[0046] In at least one alternative embodiment, wand assembly 102 does not include coupler 110. Instead, handle 108 may be secured to shroud 112, for example.

[0047] In at least one example, the handle 108 includes a rod, pole, beam, etc. 130 that may be longer than the shroud 112. Optionally, the rod 130 may be shorter than the shroud 112. One or more gripping portions 132 are secured to the rod 130. The gripping portion 132 is configured to be grasped and held by an individual. The gripping portion 132 may include ergonomic tactile features 134.

[0048] Optionally, wand assembly 102 may be sized and shaped differently than shown. For example, handle 108 may be fixed relative to shroud 112. Furthermore, handle 108 may not be configured to move relative to itself and / or shroud 112. For example, handle 108 and shroud 112 may be molded or formed as a single unit.

[0049] In at least one example, the wand assembly 102 is not coupled to a backpack assembly. For example, the wand assembly 102 is a stand-alone unit that has a power source (such as one or more batteries). In another example, the wand assembly 102 is coupled to a case assembly.

[0050] FIG. 3 illustrates a rear perspective view of the wand assembly 102 of FIG. 2. FIG. 4 illustrates a side perspective view of the wand assembly 102 of FIG. 2. With reference to FIGS. 3 and 4, the handle 108 may be pivotally coupled to the coupler 110 through a bearing 136 having a pivot shaft 138 that pivotally couples the handle 108 and the coupler 110. The handle 108 may be further configured to translate linearly in and out of the bearing 136. For example, the handle 108 may be configured to telescope in and out. Optionally or alternatively, in at least one embodiment, the handle 108 may include a retractable body that allows the handle 108 to extend outward and retract inward. In at least one other embodiment, the handle 108 may not be configured to translate, extend, shorten, or otherwise move relative to the shroud 112.

[0051] Figure 5 shows a perspective view of the portable cleaning system 100 in a collapsed position, according to one embodiment of the subject disclosure herein. The wand assembly 102 is removed from the backpack assembly 104 (see Figure 1) to provide the collapsed position shown in Figure 5. A hose 122 connects the wand assembly 102 and the backpack assembly 104. The cleaning head 106 is fully retracted relative to the handle 108 in the collapsed position.

[0052] FIG. 6 shows a perspective view of the portable cleaning system 100 with the cleaning head 106 in an extended position, according to one embodiment of the subject disclosure herein. To extend the cleaning head 106 relative to the handle 108, the cleaning head 106 slides outward relative to the handle 108 in the direction of arrow A' (or the handle 108 slides back relative to the cleaning head 106). As described above, the cleaning head 106 can translate linearly relative to the handle 108 in the direction of arrow A' via the coupler 110. Extending the cleaning head 106 outward as shown in FIG. 6 allows the portable cleaning system 100 to easily reach scattered areas. Alternatively, the cleaning head 106 may not translate linearly relative to the handle 108.

[0053] 7 shows a perspective view of the portable cleaning system 100 with the cleaning head 106 in an extended position and the handle 108 in an extended position, according to one embodiment of the subject disclosure herein. The handle 108 may be configured to translate linearly, for example with a retracted portion, to allow the cleaning head 106 to reach further. Alternatively, the handle 108 may not be configured to extend and retract.

[0054] In at least one embodiment, the handle 108 can include a lock 109. The lock 109 is configured to be selectively operated to secure the handle 108 in a desired extended (or retracted) position.

[0055] 8 shows a perspective view of the portable cleaning system 100 with the cleaning head 106 rotating relative to the handle 108, according to one embodiment of the subject disclosure herein. As described above, the cleaning head 106 is configured to rotate relative to the handle 108 via the coupler 110. Rotating the cleaning head 106 relative to the handle 108 allows the cleaning head 106 to be moved to a desired position, allowing the cleaning head 106 to sweep (or otherwise reach) areas that would be difficult to reach if the cleaning head 106 were rigidly fixed to the handle 108. Alternatively, the cleaning head 106 may not be rotatable relative to the handle 108.

[0056] 9 shows an end perspective view of the UV lamps 140 and reflector 142 of the cleaning head 106, according to one example of the subject disclosure herein. The UV lamps 140 and reflector 142 are secured within the shroud 112 (see, e.g., FIG. 2 ) of the cleaning head 106. In at least one embodiment, the reflector 142 is secured to the backside 141 of the shroud 112, for example, with one or more adhesives. As another example, the reflector 142 is an integral part of the shroud 112. For example, the reflector 142 may be or otherwise provide the backside 141 of the shroud 112. The reflector 142 provides a reflective surface 143 (e.g., formed of Teflon, a mirrored surface, and / or the like) configured to reflect UV light emitted by the UV lamps 140 outward. In at least one example, the shroud 112 may be or may include a shell formed of fiberglass, and the reflector 142 may be formed of Teflon, which provides 98% reflectivity. In at least one embodiment, the reflector 142 may be a multi-piece reflector.

[0057] The reflector 142 may extend along the entire length of the backside 141 of the shroud 112. Optionally, the reflector 142 may extend along less than the entire length of the backside 141 of the shroud 112.

[0058] The UV lamp 140 can extend along the entire length (or substantially the entire length, such as between ends 116 and 118). The UV lamp 140 is secured to the reflector 142 and / or shroud 112 by one or more mounts, such as, for example, brackets. The UV lamp 140 includes one or more UV light emitters, such as one or more light bulbs, light emitting elements (such as light emitting diodes), and / or the like. In at least one embodiment, the UV lamp 140 is configured to emit UV light in the far-UV spectrum (e.g., wavelengths 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 can be or can include a 300 W bulb configured to emit UV light having a wavelength of 222 nm. Alternatively, UV lamp 140 may be configured to emit UV light in other parts of the UV spectrum (eg, in the UVC spectrum, such as having a wavelength of 254 nm).

[0059] As shown, the reflector 142 includes flat, upstanding side walls 144 interconnected by a curved top wall 146. The curved top wall 146 may curve outward, away from the UV lamp 140. For example, the curved top wall 146 may have a parabolic cross section and / or profile.

[0060] It has been found that straight, linear sidewalls 144 provide desirable reflection and / or focusing of UV light emitted from UV lamps 140 toward and to desired locations. Alternatively, sidewalls 144 may not be straight and flat.

[0061] 10 shows an end perspective view of a UV lamp 140 and reflector 142 of a cleaning head, according to one embodiment of the subject disclosure herein. The reflector 142 shown in FIG. 10 is similar to the reflector 142 shown in FIG. 9, except that the side walls 144 may slope outward from a curved top wall 146.

[0062] 11 shows an end perspective view of a UV lamp 140 and reflector 142 of a cleaning head according to one embodiment of the subject disclosure herein. In this embodiment, the side walls 144 may be curved to follow the curvature of the curved top wall 146.

[0063] FIG. 12 shows a top perspective view of the cleaning head 106. FIG. 13 shows a bottom perspective view of the cleaning head 106. FIG. 14 shows an axial cross-sectional view of the cleaning head 106 taken along line 14-14 in FIG. 12. Referring to FIGS. 12-14, air 150 is configured to be drawn into the cleaning head 106 through one or more openings 152 (or simply an open chamber) in the shroud 112. The air 150 is drawn into the cleaning head 106 by, for example, a vacuum generator in the backpack assembly 104 (see FIG. 1). The air 150 is drawn into the shroud 112 and cools the UV lamps 140 as it passes over and around them. The air 150 is then directed into the port 120 and into the hose 122 (e.g., into an air tube in the hose 122). The air 150 not only cools the UV lamps 140 but also removes ozone within the shroud 112 that may be generated by the operation of the UV lamps 140. The air 150 may be drawn through an air filter (such as an activated carbon filter) within the backpack assembly 104.

[0064] In at least one embodiment, the portable sanitization system 100 may also include an alternative ozone reduction system. By way of example, the ozone reduction system may be located within the shroud 112 or in another portion of the system and may include, for example, an inert gas tank or a face inert gas system as in U.S. Pat. No. 10,232,954.

[0065] 13, bumpers 153 may be secured to the exposed lower peripheral edge 155 of the shroud 112. The bumpers 153 may be formed of a resilient material (e.g., rubber, another resilient material, open or closed cell foam, and / or the like). The bumpers 153 protect the cleaning head 106 from damage if the cleaning head 106 inadvertently comes into contact with a surface. The bumpers 153 also protect the surface from damage.

[0066] The openings 152 may be spaced along the periphery of the underside of the shroud 112 such that the UV lamps 140 are not directly visible from the openings 152. For example, the openings 152 may be located in a lower portion that is away from the UV lamps 140.

[0067] 14 , the cleaning head 106 may include a cover plate 154 below the UV lamp 140. The cover plate 154 may be formed of glass, for example, and may be configured to filter UV light emitted by the UV lamp 140. The UV lamp 140 may be secured within an interior space 156 defined between the reflector 142 and the cover plate 154. In at least one embodiment, the cover plate 154 is or includes 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. Thus, the UV light emitted from the cleaning head 106 may be emitted at a wavelength of 222 nm. In at least one other embodiment, the cover plate 154 may be a 254 nm bandpass filter that filters the UV light emitted by the UV lamp 140 to a wavelength of 254 nm. Therefore, the UV light emitted from the cleaning head may be emitted at a wavelength of 254 nm.

[0068] 13 and 14, a rim 157 (e.g., a 0.020" thick titanium rim) may connect the cover plate 154 to the shroud 112. The rim 157 may distribute impact loads through and / or around it.

[0069] In at least one embodiment, a ranging light emitting diode (LED) 159 can be located proximate the end of the UV lamp 140. The ranging LED 159 can be used, for example, to determine a desired distance to a structure to be cleaned. In at least one embodiment, the ranging LED 159 can be located on or within the rim 157 and / or cover plate 154. As another example, the cleaning head 106 can be configured for range guidance as described in U.S. Provisional Patent Application No. 63 / 027,869, filed May 20, 2020, which is incorporated by reference in its entirety.

[0070] FIG. 15 shows an end perspective view of a UV lamp 140 secured to a mounting bracket or clamp 160, according to one embodiment of the subject disclosure herein. Each end of the UV lamp 140 may be coupled to a mounting bracket or clamp 160, which secures the UV lamp 140 to the shroud 112 (see FIGS. 12-14). A buffer (e.g., a thin sheet of silicone having a thickness of 0.040 inches) may be placed between the end of the UV lamp 140 and the bracket 160. Optionally, the UV lamp 140 may be secured to the shroud 112 through a bracket or clamp of a different size and shape than that shown. As another example, the UV lamp 140 may be secured to the shroud 112 by adhesive, fasteners, and / or the like.

[0071] FIG. 16 shows an exploded perspective view of backpack assembly 104, according to one embodiment of the subject disclosure herein. Backpack assembly 104 includes a front wall 170 coupled to a rear housing 172, a base 174, and a top wall 176. An interior space 178 is defined between front wall 170, rear housing 172, base 174, and top wall 176. One or more batteries 180 (e.g., rechargeable lithium batteries) are housed within interior space 178. An air-generating subsystem 182 is also housed within interior space 178. Air-generating subsystem 182 is in fluid communication with an air tube within hose 122 (see, e.g., FIG. 2). Air-generating subsystem 182 may include an airflow device (e.g., a vacuum generator, a blower, and / or the like). The airflow device is configured to generate airflow for cooling the UV lamps, to draw air from the cleansing head 106 into the backpack assembly 104 and expel it through an exhaust port, to draw or otherwise remove generated ozone away from the shroud 112, and / or perform similar operations.

[0072] Within backpack assembly 104 are one or more air filters 183 (e.g., carbon filters). Air filters 183 communicate with air tubes or other such delivery ducts or pipes that route air through hoses 122 and into backpack assembly 104. Air filters 183 are configured to filter air drawn into backpack assembly 104 from shroud 112. For example, air filters 183 may be configured to remove, inert, or otherwise neutralize ozone.

[0073] A battery 180 and / or power supply within the backpack assembly 104 provides operating power for the UV lamps 140 of the cleansing head 106 (see, e.g., FIG. 2 ). A top wall 176 (e.g., a top cap) may be removably coupled to the front wall 170 and the rear housing 172. The top wall 176 may be removed, for example, to provide access to the battery 180 (e.g., to remove and / or recharge the battery). Additional space may be provided within the backpack assembly 104 for storing necessary items, additional batteries, additional components, and / or the like. In at least one embodiment, the front wall 170, the rear housing 172, the base 174, and the top wall 176 may be formed of fiberglass epoxy.

[0074] 17 shows a front perspective view of a harness 105 coupled to a backpack assembly 104, according to one embodiment of the subject disclosure herein. The harness 105 may include shoulder straps 190 and / or a waist or hip belt or strap 192 that allow the backpack assembly 104 to be worn comfortably by the individual.

[0075] 1-17 , during operation, a personnel individual may don the backpack assembly 104 and walk through an area. Once the personnel individual finds a structure to be cleaned, the personnel individual may grasp the handle 108 and position the cleaning head 106 as desired, for example, by extending and / or rotating the cleaning head 106 relative to the handle 108. The personnel individual may then use an activation button on the handle 108, for example, to activate the UV lamps 140 to emit sanitizing UV light onto the structure. When the UV lamps 140 are activated, air 150 is drawn into the shroud 112 to cool the UV lamps 140 and to force any generated ozone into the backpack assembly 104. The ozone is filtered within the backpack assembly 104 by an air filter 183.

[0076] The extendable wand assembly 102 allows the cleaning head 106 to reach areas away from the aisle within the interior cabin of a commercial aircraft (e.g., beyond all three seat pairs).

[0077] Figure 18 illustrates the ultraviolet light spectrum. Referring to Figures 1-18, in at least one embodiment, the cleaning head 106 is configured to emit sanitizing UV light (through operation of the UV lamps 140) within the far UV spectrum (e.g., between 200 nm and 230 nm) and / or within the UVC spectrum. In at least one embodiment, the cleaning head 106 emits sanitizing UV light having a wavelength of 222 nm. In at least one other embodiment, the cleaning head 106 emits sanitizing UV light having a wavelength of 254 nm.

[0078] 19 shows a schematic block diagram of a wand speed verification system 200, according to one embodiment of the subject disclosure herein. The wand speed verification system 200 includes a wand assembly 102 having a cleaning head 106. In at least one embodiment, a first monitored member 202 is part of or fixed to the wand assembly 102.

[0079] The second monitored member 204 is separate from the wand assembly 102. The second monitored member 204 may be fixed to a stationary structure, for example, within the interior cabin of the vehicle. The second monitored member 204 may also optionally be fixed to (e.g., on or within) the backpack assembly 104 (see FIG. 1 ), a case assembly, a wearable device worn by an operator, or the like.

[0080] The verification control unit 206 communicates with the memory 208, for example, through one or more wired or wireless connections. The memory 208 may be part of the verification control unit 206 or may be separate from the verification control unit 206. In at least one embodiment, the verification control unit 206 and the memory 208 are located within the backpack assembly 104, the case assembly, or the wand assembly 102. In at least one other embodiment, the verification control unit 206 and the memory 208 are located remotely from the backpack assembly 104, the case assembly, the wand assembly 102, etc. For example, the verification control unit 206 and the memory 208 may be located within a portion of the interior cabin of the vehicle.

[0081] The verification control unit 206 communicates with the first monitored member 202 and / or the second monitored member 204, for example, via one or more wired or wireless signals. The verification control unit 206 receives signals output from the first monitored member 202 and / or the second monitored member 204, for example, to determine the speed of movement of the cleaning head 106.

[0082] In at least one embodiment, the wand assembly 102 includes an indicator 210, for example, on a portion of the wand assembly 102 (e.g., on the cleansing head 106 or on a handle connected to the cleansing head 106). The indicator 210 includes one or more lights 212 and / or a speaker 214. As another example, the indicator 210 includes a screen that displays text, images, or video. As another example, the indicator 210 may be a vibrating device configured to provide feedback through vibrations.

[0083] During operation, the memory 208 stores pace data for the wand assembly 102. For example, this pace data includes pace speeds of movement of the cleaning head 106 at various distances from the surface to be cleaned, power of the UV lamp 140, the particular wavelength of UV light emitted, the time for effective dose, etc.

[0084] The wand assembly 102 is operated by moving the cleaning head 106 toward the surface to be disinfected. The distance of the cleaning head 106 from the surface is detected by one or more sensors, as disclosed in U.S. Provisional Patent Application No. 63 / 027,869. These sensors communicate with the verification control unit 206, which then determines the distance of the cleaning head 106 from the surface based on the signals output by the sensors.

[0085] As the cleaning head 106 is moved, the first monitored member 202 also moves relative to the second monitored member 204. The verification control unit 206 detects this movement from the signal(s) output by one or both of the first monitored member 202 and / or the second monitored member 204. The verification control unit 206 thus determines the speed of movement of the wand assembly 102 relative to the surface.

[0086] The verification control unit 206 then compares the detected speed of the wand assembly 102, the distance of the wand assembly 102 from the surface, the type of UV light emitted, and the power of the UV light emitted with pace data stored in memory 208. The pace data indicates the correct speed for proper cleaning of the surface at the detected distance for a particular UV light and UV light emission power. Based on the comparison of the detected speed with the pace data, the verification control unit 206 determines whether the actual speed of the wand assembly 102 detected from the signal(s) received from one or both of the first monitored member 202 and / or the second monitored member 204 is sufficient to clean the surface. If the actual speed of the wand assembly 102 is correct (e.g., determined to be equal to the correct speed or within an acceptable range corresponding to the correct speed), the verification control unit 206 outputs an indication signal to the wand assembly 102 indicating the correct speed. Indicator 210 may indicate correct speed through corresponding luminous energy (e.g., a green glow) emitted by light(s) 212 and / or an audible signal emitted through speaker 214. As another example, indicator 210 includes a screen that displays text, images, or video related to the speed of wand assembly 102.

[0087] However, if the actual speed of the wand assembly is too fast, resulting in inadequate cleaning (e.g., determined to be faster than the correct speed or not within an acceptable range corresponding to the correct speed), the verification control unit 206 outputs an indication signal to the wand assembly 102 indicating that the actual speed is too fast. The indicator 210 may indicate the high speed through corresponding luminous energy (e.g., a red glow) emitted by the light(s) 212 and / or an audio signal emitted through the speaker 214.

[0088] However, if the actual speed of the wand assembly is too slow, resulting in inefficient cleaning (e.g., determined to be slower than the correct speed or not within an acceptable range corresponding to the correct speed), the verification control unit 206 outputs an indication signal to the wand assembly 102 indicating that the actual speed is too slow. The indicator 210 may indicate the slow speed through corresponding luminous energy emitted by the light(s) 212 (e.g., a yellow glow) and / or an audio signal emitted through the speaker 214.

[0089] As described herein, the system 200 includes a wand assembly 102 including a cleaning head 106 having a UV lamp 140 configured to emit UV light to clean a surface of a component. The wand assembly further includes a first monitored member 202. The system 200 also includes a second monitored member 204. A verification control unit 206 is in communication with the first monitored member 202 and the second monitored member 204. The verification control unit 206 is configured to detect the speed of the wand assembly 102 based on a comparison of the first monitored member 202 and the second monitored member 204.

[0090] As an example, the verification control unit 206 determines whether the speed of the wand assembly 102 is sufficient to clean the surface based on a comparison of the speed of the wand assembly 102 with pace data stored in the memory 208. The verification control unit 206 outputs a warning signal in response to the speed being outside a predetermined range defined by the pace data. The verification control unit 206 outputs an adequate speed signal in response to the speed being within a predetermined range defined by the pace data.

[0091] In at least one embodiment, wand assembly 102 further includes an indicator 210 configured to indicate the speed status of wand assembly 102. For example, indicator 210 includes at least one light 212 and / or one speaker 214.

[0092] In at least one embodiment, the results of the cleaning process performed by wand assembly 102 may be recorded in memory 208. For example, if verification control unit 206 determines that the cleaning process was effective in cleaning one or more surfaces (e.g., as determined by pace speed over a particular distance), the effective cleaning process is stored in memory 208 and time-stamped within memory 208.

[0093] The wand speed verification system 100 verifies the speed of the wand assembly 102 to ensure that the correct dose of sanitizing light (e.g., 222 nm UV light or 254 nm UV light) is delivered to the surface. In at least one embodiment, the second monitored element 204 is a radio frequency (RF) receiver located at a fixed location (e.g., on the operator, such as on the backpack assembly 104, or in the environment, such as within the interior cabin of a vehicle). In this embodiment, the first monitored element 202 is an RF emitter located on the wand assembly 102 (e.g., on the sanitizing head 106). In at least one embodiment, the verification control unit 206 determines the speed of the wand assembly 102 by integrating the location of the sanitizing head 106 relative to the fixed location. An indicator is activated to notify the operator of the actual wand speed, and activation of the indicator may include a pace light or an audio beep on the wand assembly 102. Alternatively, the first monitored item 202 is an RF receiver and the second monitored item 204 is at a fixed location.

[0094] Alternatively, the second monitored member 204 is a camera at a fixed location and the first monitored member 202 is an optical target on the wand assembly 102 (e.g., on the cleaning head 106). Optionally, the second monitored member 204 is an optical target and the first monitored member 202 is a camera.

[0095] Alternatively, the second monitored member 204 is an infrared source at a fixed location and the first monitored member 202 is an infrared optical target located on the wand assembly 102. Optionally, the second monitored member 204 is an infrared optical target and the first monitored member 202 is an infrared source.

[0096] Alternatively, the first monitored member 202 or the second monitored member 204 is a light detection and ranging (LIDAR) detector, and the other of the first monitored member 202 or the second monitored member 204 is a LIDAR optical target.

[0097] Alternatively, the first monitored member 202 is an accelerometer on or within the wand assembly 102. In this embodiment, the second monitored member 204 may not be necessary. Instead, the verification control unit 206 detects the speed of the wand assembly 102 through one or more signals output by the accelerometer.

[0098] In at least one embodiment, the speed of the wand assembly 102 is determined by the distance of the wand to the surface for a certain lamp power. Once the operator selects a distance (e.g., 4 inches (10.16 cm) from the surface to be disinfected), the verification control unit 206 determines the speed required to achieve the correct dose of UV light, which is stored as pace data in memory 208.

[0099] In at least one embodiment, the predetermined dose of UV light is determined by the lamp power, the distance to the target, and the exposure time. The speed of the wand assembly 102 determines the exposure time.

[0100] As used herein, terms such as "control unit," "central processing unit," "CPU," "computer," and the like may include any processor-based or microprocessor-based system, including systems using microcontrollers, reduced instruction set computers (RISC), application specific integrated circuits (ASIC), logic circuits, and any other circuits or processors, including hardware, software, or a combination thereof, capable of performing the functions described herein. These are examples only and are not intended to limit in any way the definition and / or meaning of such terms. For example, verification control unit 206 may be or include one or more processors configured to control the operations described herein.

[0101] The verification control unit 206 is configured to execute a set of instructions stored in one or more data storage units or elements (e.g., one or more memories) to process data. For example, the verification control unit 206 may include one or more memories or be coupled to one or more memories. The data storage units may also store data or other information as desired or needed. The data storage units may be in the form of information sources or physical memory elements within a processing machine.

[0102] The set of instructions may include various commands that direct the verification control unit 206 as a processing machine to perform particular operations (e.g., the methods and processes of various embodiments of the subject matter described herein). The set of instructions may be in the form of a software program. The software may be in various forms, such as system software or application software. Furthermore, the software may be in the form of a collection of separate programs, a program subset within a larger program, or a portion of a program. The software may also include modular programming in the form of object-oriented programming. The processing of input data by the processing machine may be in response to user commands, results of previous processing, or a request made by another processing machine.

[0103] Diagrams of embodiments herein may depict one or more control or processing units (e.g., verification control unit 206). It should be understood that the processing or control unit may refer to circuitry, circuitry, or portions thereof, which may be implemented as hardware associated with instructions (e.g., software stored on a tangible, non-transitory computer-readable storage medium such as a computer hard drive, ROM, RAM, etc.) that perform the operations described herein. The hardware may include hardwired state machine circuitry to perform the functions described herein. Optionally, the hardware may include electronic circuitry including and / or connected to one or more logic-based devices such as a microprocessor, processor, controller, etc. Optionally, the verification control unit 206 may refer to processing circuitry such as one or more of a field programmable gate array (FPGA), an application-specific integrated circuit (ASIC), microprocessor(s), and / or the like. The circuitry in various embodiments may be configured to execute one or more algorithms to perform the functions described herein. Such algorithm(s) may include aspects of the embodiments disclosed herein (whether or not explicitly identified in a flow diagram or method).

[0104] As used herein, the terms "software" and "firmware" are used interchangeably and include any computer program executed by a computer that is stored in a data storage unit (e.g., one or more memories), including RAM memory, ROM memory, EPROM memory, EEPROM memory, and non-volatile RAM (NVRAM) memory. The types of data storage units listed above are exemplary only and are therefore not intended to impose any limitations on the types of memory that may be used for storage of computer programs.

[0105] 20 shows a perspective view of a portable cleansing system 100 worn by a caregiver individual 101, according to one embodiment of the subject disclosure herein. As shown, a first monitored member 202 is on the cleansing head 106 of the wand assembly 102. A second monitored member 204 may be within the backpack assembly 104 and / or a portion of the harness 105.

[0106] 21 shows a flow diagram of a wand speed verification method, according to one embodiment of the subject disclosure herein. Referring to FIGS. 19-21, the verification control unit 206 detects 250 the distance from the surface being cleaned to the UV lamps 140 of the cleaning head 106, for example, via one or more distance sensors in the cleaning head 106. The verification control unit 206 detects 252 the speed of movement of the cleaning head 106 by comparing the change in position of the first monitored member 202 to the position of the second monitored member 204 over time.

[0107] The verification control unit 206 compares the detected distance and speed of the cleaning head 106 with pace data stored in memory 208 at 254. The verification control unit 206 determines whether the detected distance and speed are within an acceptable range of pace data (e.g., within + / - 5%) at 256. If not, the method proceeds from 256 to 258, where the verification control unit 206 outputs a warning signal to the wand assembly 102. At 260, the warning signal is displayed on the indicator 210, indicating a corresponding speed that is either too fast or too slow.

[0108] However, if the verification control unit 206 determines that the detected distance and speed are within an acceptable range, the method proceeds from 256 to 262, where the verification control unit 206 outputs an appropriate speed signal to the wand assembly 102. At 264, the appropriate speed signal is displayed on the indicator 210, indicating that the corresponding speed is appropriate for cleaning.

[0109] 22 illustrates a front perspective view of an aircraft 310, according to one embodiment of the subject disclosure herein. The aircraft 310 includes a propulsion system 312 including, for example, engines 314. The propulsion system 312 may optionally include more engines 314 than shown. The engines 314 are supported on wings 316 of the aircraft 310. In other embodiments, the engines 314 may be supported on a fuselage 318 and / or a tail section 320. The tail section 320 may also support a horizontal stabilizer 322 and a vertical stabilizer 324.

[0110] The fuselage 318 of the aircraft 310 defines an interior cabin 330 that may include a flight deck or cockpit, one or more work areas (e.g., galleys, passenger carry-on baggage areas, etc.), one or more passenger areas (e.g., first class, business class, and economy areas), one or more lavatories, and / or the like. The interior cabin 330 may include one or more lavatory systems, lavatory units, or lavatories, as described herein.

[0111] Alternatively, instead of aircraft, embodiments of the subject disclosure herein may be used with a variety of other vehicles, such as automobiles, buses, locomotives and train cars, and ships. Additionally, embodiments of the subject disclosure herein may also be used in connection with stationary structures, such as commercial and residential buildings, such as theaters, concert venues, auditoriums, classrooms, stadiums, grocery stores, office buildings, and hospitals.

[0112] FIG. 23A illustrates a top view of an interior cabin 330 of an aircraft, according to one embodiment of the subject disclosure herein. The interior cabin 330 may be located within a fuselage 332 of the aircraft (e.g., fuselage 318 of FIG. 22 ). For example, one or more fuselage walls may define the interior cabin 330. The interior cabin 330 includes multiple zones, including a forward zone 333, a first class zone 334, a business class zone 336, a forward galley station 338, an extended economy (or coach) zone 340, a standard economy zone 342, and an aft zone 344, which may include multiple lavatories and galley stations. It will be understood that the interior cabin 330 may include more or fewer zones than shown. For example, the interior cabin 330 may not include a first class zone and may include more or fewer galley stations than shown. Each zone may be separated by a cabin transition area 346, which may include a class divider assembly between aisles 348.

[0113] 23A, the interior cabin 330 includes two aisles 350 and 352 that lead to the aft section 344. The interior cabin 330 may optionally have fewer or more aisles than shown. For example, the interior cabin 330 may include a single aisle that extends through the center of the interior cabin 330 and leads to the aft section 344.

[0114] The aisles 348, 350, and 352 extend to an exit path or doorway 360. Exit doors 362 are located at either end of the exit path 360. The exit path 360 may be perpendicular to the aisles 348, 350, and 352. The interior cabin 330 may include a greater number of exit paths 360 than shown, and in different locations than shown. The portable sanitizing system 100 shown and described in connection with FIGS. 1-21 may be used to sanitize various structures within the interior cabin 330, such as seats, monuments, storage assemblies, lavatory and interior lavatory components, galley equipment and components, and / or the like.

[0115] FIG. 23B illustrates a top view of an interior cabin 380 of an aircraft, according to one embodiment of the subject disclosure herein. Interior cabin 380 is an example of interior cabin 330 shown in FIG. 22. Interior cabin 380 may be inside a fuselage 381 of the aircraft. For example, one or more fuselage walls may define interior cabin 380. Interior cabin 380 includes multiple sections, including a main cabin 382 having seats 383 and an aft section 385 aft of main cabin 382. It will be understood that interior cabin 380 may include more or fewer sections than shown.

[0116] The interior cabin 380 may include a single passageway 384 that leads to the aft section 385. The single passageway 384 may extend through the center of the interior cabin 380 and lead to the aft section 385. For example, the single passageway 384 may be disposed coaxially with a central longitudinal plane of the interior cabin 380.

[0117] The passageway 384 extends to an exit path or doorway 390. Exit doors 392 are located at either end of the exit path 390. The exit path 390 may be perpendicular to the passageway 384. The interior cabin 380 may include a greater number of exit paths than shown. The portable cleaning system 100 shown and described in connection with Figures 1-21 may be used to clean various structures within the interior cabin 330, such as seats, fixtures, storage assemblies, lavatory and interior lavatory components, galley equipment and components, and / or the like.

[0118] FIG. 24 illustrates an interior perspective view of an aircraft interior cabin 400, in accordance with one embodiment of the subject disclosure herein. The interior cabin 400 includes a tip wall 402 connected to a ceiling 404. A window 406 may be formed in the tip wall 402. A floor 408 supports rows of seats 410. As shown in FIG. 24 , a row 412 may include two seats 410 on each side of an aisle 413. However, the row 412 may include more or fewer seats 410 than shown. Additionally, the interior cabin 400 may include more aisles than shown.

[0119] Passenger service units (PSUs) 414 are secured between the tip walls 402 and the ceiling 404 on either side of the aisle 413. The PSUs 414 extend between the forward and aft ends of the interior cabin 400. Each PSU 414 may be located, for example, above each of the seats 410 in the row 412. Each PSU 414 may generally include a housing 416 that houses air vents, reading lights, an oxygen bag drop panel, a crew call button, and other such controls for each of the seats 410 (or groups of seats) in the row 412.

[0120] Overhead stowage assemblies 418 are secured to the ceiling 404 and / or tip-side walls 402 above and inboard of the PSUs 414 on either side of the aisle 413. The overhead stowage assemblies 418 are secured above the seats 410. The overhead stowage assemblies 418 extend between the forward and aft ends of the interior cabin 400. Each stowage assemblies 418 may include a pivoting bin or container 420 pivotally secured to a strongback (not visible in FIG. 24 ). The overhead stowage assemblies 418 may be located above the underside of the PSUs 414 and inboard of the PSUs 414. The overhead stowage assemblies 418 are configured to pivot open, for example, to receive passenger carry-on baggage or personal belongings.

[0121] As used herein, the term "outboard" refers to a location that is further from the central longitudinal plane 422 of the interior cabin 400 than another component. The term "inboard" refers to a location that is closer to the central longitudinal plane 422 of the interior cabin 400 than another component. For example, the underside of the PSU 414 may be wingtip-directed relative to the stowage assembly 418.

[0122] The portable cleaning system 100 shown and described in connection with FIGS. 1-21 may be used to clean a variety of structures shown within the interior cabin 400.

[0123] When not in use, the portable cleaning system 100 may be stored, for example, in a storage bin within the interior cabin of the vehicle, in a galley cart bin, or in a galley cart.

[0124] FIG. 25 illustrates an interior perspective view of a restroom 430 within the interior cabin of a vehicle (e.g., any of the interior cabins described herein). The restroom 430 is an example of an enclosed space, installation, or area, such as within the interior cabin of a vehicle. The restroom 430 may be located onboard an aircraft, as described above. The restroom 430 may optionally be located onboard various other vehicles. In other embodiments, the restroom 430 may be located within a stationary structure (e.g., a commercial or residential building). The restroom 430 includes a base floor 431 that supports a toilet 432, a cabinet 434, and a sink 436 or basin. The restroom 430 may be arranged differently than shown. The restroom 430 may include more or fewer components than shown. The portable cleaning system 100 illustrated and described in connection with FIGS. 1-21 may be used to clean various structures, components, and surfaces within the restroom 430.

[0125] The portable cleaning system 100 described herein can be used to safely and effectively clean high-touch surfaces within the flight deck and interior cabin in a timely and cost-effective manner. UV disinfection allows the interior cabin to be disinfected quickly and effectively (e.g., between flights). In at least one embodiment, the portable cleaning system 100 can be used to complement the cleaning process (e.g., after manual cleaning).

[0126] As described herein, embodiments of the subject disclosure herein provide systems and methods for efficiently sterilizing surfaces, components, structures, and / or the like within the interior cabin of a vehicle. Additionally, embodiments of the subject disclosure herein provide compact, easy-to-use, and safe systems and methods for sterilizing surfaces within the interior cabin using UV light.

[0127] Additionally, certain embodiments of the subject disclosure herein provide systems and methods for verifying that movement of a wand assembly with a UV lamp is sufficient to clean a surface of a component, and further ensure that the correct dose of UV light is delivered to the surface to effectively clean the surface.

[0128] Furthermore, the present disclosure includes embodiments according to the following clauses:

[0129] Clause 1. A system comprising: a wand assembly including a cleaning head having an ultraviolet (UV) lamp configured to emit UV light to clean a surface of the component, the wand assembly further comprising: a first monitored member; a second monitored member; A system including a verification control unit in communication with one or both of the first monitored member and the second monitored member, the verification control unit configured to detect the speed of the wand assembly based on a comparison of the first monitored member and the second monitored member.

[0130] Clause 2. The system described in clause 1, wherein the verification control unit determines whether the speed of the wand assembly is sufficient to clean the surface based on a comparison of the speed of the wand assembly with pace data stored in the memory.

[0131] Clause 3. A system as described in clause 1 or 2, wherein the verification control unit outputs a warning signal in response to the speed being outside a predetermined range defined by the pace data.

[0132] Clause 4. A system described in any one of clauses 1 to 3, wherein the verification control unit outputs an appropriate speed signal in response to the speed being within a predetermined range defined by the pace data.

[0133] Clause 5. A system as described in any one of clauses 1 to 4, wherein the wand assembly further comprises an indicator configured to indicate a speed status of the wand assembly.

[0134] Clause 6. The system of clause 5, wherein the indicator includes at least one of a display, a light, a vibration motor, or a speaker.

[0135] Clause 7. A system as described in any one of clauses 1 to 6, wherein the second monitored member is fixed to a stationary structure within the interior cabin of the vehicle.

[0136] Clause 8. A system as described in any one of clauses 1 to 7, wherein the second monitored member is fixed to a portion of the backpack assembly that is coupled to the wand assembly.

[0137] Clause 9. The system of clause 8, wherein one of the wand assembly, the backpack assembly, or the case assembly includes a verification control unit.

[0138] Clause 10. A system described in any one of clauses 1 to 9, wherein the verification control unit compares the speed of the wand assembly at a distance from the surface with pace data stored in memory to determine whether the speed of the wand assembly is sufficient to clean the surface.

[0139] Clause 11. A system described in any one of clauses 1 to 10, wherein one of the first monitored member and the second monitored member is a radio frequency (RF) receiver and the other of the first monitored member and the second monitored member is an RF emitter.

[0140] Clause 12. A system described in any one of clauses 1 to 7, 10 and 11, wherein one of the first monitored member and the second monitored member is a camera and the other of the first monitored member and the second monitored member is an optical target.

[0141] Clause 13. A system described in any one of clauses 1 to 7, 10 and 11, wherein one of the first monitored member and the second monitored member is an infrared source and the other of the first monitored member and the second monitored member is an infrared optical target.

[0142] Clause 14. A system described in any one of clauses 1 to 7, 10 and 11, wherein one of the first monitored member and the second monitored member is a LIDAR detector and the other of the first monitored member and the second monitored member is a LIDAR optical target.

[0143] Clause 15. A system according to any one of clauses 1 to 7, 10 and 11, wherein the first monitored component is an accelerometer.

[0144] Clause 16. A system described in any one of clauses 1 to 15, wherein the UV lamp is configured to emit UV light at a wavelength of 222 nm.

[0145] Clause 17. A system described in any one of clauses 1 to 15, wherein the UV lamp is configured to emit UV light within the far UV spectrum.

[0146] Clause 18. A system described in any one of clauses 1 to 15, wherein the UV lamp is configured to emit UV light at a wavelength of 254 nm.

[0147] Clause 19. A system described in any one of clauses 1 to 15, wherein the UV lamp is configured to emit UV light within the UVC spectrum.

[0148] Clause 20. A method comprising: using a wand assembly including a cleaning head having an ultraviolet (UV) lamp configured to emit UV light to clean a surface of a component, the wand assembly further including a first monitored member; communicatively coupling a verification control unit to one or both of the first monitored member and the second monitored member; and detecting, by the verification control unit, a speed of the wand assembly based on a comparison of the first monitored member and the second monitored member.

[0149] Clause 21. The method of clause 20, further comprising determining, by the verification control unit, whether the speed of the wand assembly is sufficient to clean the surface based on a comparison of the speed of the wand assembly with pace data stored in the memory.

[0150] Clause 22. The method of clause 21, further comprising outputting, by the validation control unit, a warning signal in response to the speed being outside a predetermined range defined by the pace data.

[0151] Clause 23. The method of any one of clauses 20 to 22, further comprising outputting, by the verification control unit, an adequate speed signal in response to the speed being within a predetermined range defined by the pace data.

[0152] Clause 24. The method of any one of clauses 20 to 23, further comprising indicating the state of the speed of the wand assembly by an indicator on the wand assembly.

[0153] Clause 25. The method of any one of clauses 20 to 24, further comprising fixing the second monitored member to a stationary structure within the interior cabin of the vehicle.

[0154] Clause 26. The method of any one of clauses 20 to 25, further comprising securing a second monitored member to a portion of the backpack assembly or case assembly coupled to the wand assembly.

[0155] Clause 27. The method of any one of clauses 20 to 26, further comprising comparing, by the verification control unit, the speed of the wand assembly at a distance from the surface with pace data stored in memory to determine whether the speed of the wand assembly is sufficient to clean the surface.

[0156] Clause 28. A system comprising: a first monitored member configured to be coupled to a wand assembly including a cleaning head having an ultraviolet (UV) lamp configured to emit UV light to clean a surface of the component; a second monitored member; A system comprising: a verification control unit in communication with one or both of the first monitored member and the second monitored member, the verification control unit configured to detect the speed of the wand assembly based on a comparison of the first monitored member and the second monitored member.

[0157] Various spatial and directional terms, such as top, bottom, lower, mid, lateral, horizontal, vertical, front, etc., may be used to describe embodiments of the subject disclosure herein, but it is understood that such terms are used only with reference to the orientation shown in the drawings. These orientations may be flipped, rotated, or otherwise changed, such as top becoming bottom or vice versa, horizontal becoming vertical, etc.

[0158] As used herein, a structure, limitation, or element that is "configured to" perform a task or operation is structurally shaped, constructed, or adapted specifically to correspond to such task or operation. For clarity and avoidance of doubt, as used herein, an object that is only capable of performing a task or operation when modified is not "configured to" perform such task or operation.

[0159] It should be understood that the above description is illustrative and not limiting. For example, the above-described embodiments (and / or aspects thereof) may be used in combination with each other. In addition, many modifications can be made to the teachings of various embodiments of the present disclosure to adapt to particular situations or materials without departing from its scope. While the dimensions and types of materials described herein are intended to define the parameters of various embodiments of the present disclosure, these embodiments are by no means limiting, but rather exemplary. Many other embodiments will be apparent to those skilled in the art upon review of the above description. Accordingly, the scope of the various embodiments of the present disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims and this Detailed Description, the words "including" and "containing" are used as plain English equivalents of the word "comprising," and the word "in which" is used as the plain English equivalent of the word "wherein." Furthermore, the terms "first," "second," "third," etc., are used merely as labels and are not intended to impose numerical requirements on their objects. Moreover, the limitations of the following claims are not written in means-plus-function format and are not intended to be construed under 35 U.S.C. §112(f) unless the phrase "means for" followed by a recitation of the functional void of further structure is expressly used in such claim limitations.

[0160] Examples are used herein to disclose various embodiments of the present disclosure, including the best mode, and also to enable any person skilled in the art to practice various embodiments of the present disclosure, including making and using any device or system and performing any embodied methods. The patentable scope of the various embodiments of the present disclosure is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if the examples have structural elements that do not differ from the literal language of the claims, or if the examples include equivalent structural elements that have only minor differences from the literal language of the claims.

Claims

1. A system (200), comprising: a wand assembly (102) including a cleaning head (106) having an ultraviolet (UV) lamp (140) configured to emit UV light to clean a surface of a component, and a first monitored member (202); a second monitored member (204) separate from the wand assembly (102); and A system (200) comprising a verification control unit (206) in communication with both the first monitored member (202) and the second monitored member (204), the verification control unit (206) being configured to detect the speed of the wand assembly (102) based on changes in the position of the first monitored member (202) relative to the position of the second monitored member (204) over time.

2. 2. The system of claim 1, wherein the verification control unit determines whether the speed of the wand assembly is sufficient to clean the surface based on a comparison of the speed of the wand assembly with pace data stored in a memory.

3. 3. The system of claim 2, wherein the verification control unit outputs at least one of a warning signal in response to the speed of the wand assembly being outside a predetermined range defined by the pace data, or an appropriate speed signal in response to the speed of the wand assembly being within the predetermined range defined by the pace data.

4. 4. The system (200) of claim 1, wherein the wand assembly (102) further comprises an indicator (210) configured to indicate a speed status of the wand assembly (102).

5. The system (200) of claim 4, wherein the indicator (210) comprises at least one of a display, a light, a vibration motor, or a speaker.

6. 6. The system (200) of claim 1, wherein the second monitored member (204) is configured to be fixed to one of a stationary structure within the interior cabin of a vehicle or a portion of a backpack assembly (104) connected to the wand assembly (102).

7. The system (200) of any one of claims 1 to 6, wherein one of the wand assembly (102), backpack assembly (104), or case assembly comprises the verification control unit (206).

8. 8. The system (200) of claim 1, wherein the verification control unit (206) compares the speed of the wand assembly (102) at a distance from the surface with pace data stored in a memory (208) to determine whether the speed of the wand assembly (102) is sufficient to clean the surface.

9. 9. The system (200) of claim 1, wherein one of the first monitored member (202) or the second monitored member (204) is a radio frequency (RF) receiver, and the other of the first monitored member (202) or the second monitored member (204) is an RF emitter.

10. Either the first monitored member (202) or the second monitored member (204) is a camera, and the other of the first monitored member (202) or the second monitored member (204) is an optical target; or one of the first monitored member (202) or the second monitored member (204) is an infrared source and the other of the first monitored member (202) or the second monitored member (204) is an infrared optical target; 9. The system (200) of claim 1, wherein one of the first monitored element (202) or the second monitored element (204) is a LIDAR detector, and the other of the first monitored element (202) or the second monitored element (204) is a LIDAR optical target.

11. A system (200) as described in any one of claims 1 to 10, wherein the UV lamp (140) is configured to emit UV light of at least one spectrum or wavelength of: UV light with a wavelength of 222 nm, UV light with a wavelength of 254 nm, UV light within the far UV spectrum, or UV light within the UVC spectrum.

12. 1. A method comprising: cleaning a surface of a component using a wand assembly (102) comprising a cleaning head (106) having an ultraviolet (UV) lamp (140) configured to emit UV light to clean the surface of the component, the wand assembly (102) further comprising a first monitored member (202); communicatively coupling a verification control unit (206) to both the first monitored member (202) and a second monitored member (204) separate from the wand assembly (102); and detecting, by the verification control unit (206), a speed of the wand assembly (102) based on a change over time in the position of the first monitored member (202) relative to the position of the second monitored member (204).

13. determining, by the verification control unit (206), whether the speed of the wand assembly (102) is sufficient to clean the surface based on a comparison of the speed of the wand assembly (102) with pace data stored in a memory (208); outputting, by the verification control unit (206), a warning signal in response to the speed of the wand assembly (102) being outside a predetermined range defined by pace data; outputting, by the verification control unit (206), an adequate speed signal in response to the speed of the wand assembly (102) being within a predetermined range defined by pace data; The method of claim 12, further comprising indicating a speed status of the wand assembly (102) with an indicator (210) of the wand assembly (102).

14. 14. The method of claim 12 or 13, further comprising securing the second monitored member (204) to one of a stationary structure within an interior cabin of a vehicle or within a building, a portion of a backpack assembly (104) coupled to the wand assembly (102), or a portion of a case assembly coupled to the wand assembly (102).

15. 15. The method of claim 12, further comprising comparing, by the verification control unit (206), the speed of the wand assembly (102) at a distance from the surface with pace data stored in a memory (208) to determine whether the speed of the wand assembly (102) is sufficient to clean the surface.

16. A method according to any one of claims 12 to 15, wherein the UV lamp (140) is configured to emit UV light of at least one spectrum or wavelength of: UV light of a wavelength of 222 nm, UV light of a wavelength of 254 nm, UV light within the far UV spectrum, or UV light within the UVC spectrum.

17. A method described in any one of claims 12 to 16, wherein one of the first monitored member (202) or the second monitored member (204) is a radio frequency (RF) receiver, and the other of the first monitored member (202) or the second monitored member (204) is an RF emitter.

18. One of the first monitored member (202) or the second monitored member (204) is a camera and the other of the first monitored member (202) or the second monitored member (204) is an optical target; or one of the first monitored member (202) or the second monitored member (204) is an infrared source and the other of the first monitored member (202) or the second monitored member (204) is an infrared optical target; 17. The method of any one of claims 12 to 16, wherein one of the first monitored element (202) or the second monitored element (204) is a LIDAR detector, and the other of the first monitored element (202) or the second monitored element (204) is a LIDAR optical target.

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