Patent Description:
Vehicles such as commercial aircraft are used to transport passengers between various locations. Systems are currently being developed to disinfect or otherwise sanitize surfaces within aircraft, for example, that use ultraviolet (UV) light.

In order to sanitize a surface of a structure, a known UV light sterilization method emits a broad spectrum UVC light onto the structure. However, UVC light typically takes a significant amount of time (for example, three minutes) to kill various microbes. Further, various microbes may not be vulnerable to UVC light. That is, such microbes may be able to withstand exposure to UVC light.

Also, certain types of microbes may develop a resistance to UVC light. For example, while UVC light may initially kill certain types of microbes, with continued exposure to UVC light over time, the particular species of microbe may develop a resistance to UVC light and able to withstand UVC light exposure.

Further, certain known manual surface treatment devices rely on an operator to perform with high degrees of repeatability to produce a high quality disinfection treatment. However, manual processes tend to vary, and may be difficult to simultaneously maintain a high degree of quality control and efficiency.

<CIT>, in accordance with its abstract, states an ultraviolet irradiation device that includes: a light source unit that includes at least one ultraviolet LED; a driver that supplies a drive current to the ultraviolet LED; and a controller that controls an operation of the driver. The controller calculates a drive current value of the ultraviolet LED based on information indicating spectral intensity characteristics of the ultraviolet LED and information indicating spectral action characteristics of a target of irradiation irradiated by light from the light source unit, and the driver supplies a drive current of a value calculated by the controller to the ultraviolet LED.

<CIT>, in accordance with its abstract, states a system for controlling growth of microorganisms, comprising a first light source for radiating a blue light at a first wavelength that ranges between <NUM> to <NUM> nanometers to control growth of microorganisms; a second light source for radiating an ultra-violet light at a second wavelength that ranges between <NUM> to <NUM> nanometers to kill microorganisms; a light sensor for detecting an intensity of a light; a motion sensor for detecting a moving object; and a microcontroller, communicatively connected to the first light source, the second light source, the light sensor and the motion sensor, configured to modify an intensity of the blue light based on the light sensor data; and control an intensity of the ultra-violet light based on detection of a moving object by the motion sensor.

<CIT>, in accordance with its abstract, states a sterilization system that includes a self-propelled robotic mobile platform for locating and eradicating infectious bacterial and virus strains on floors (and objects thereon), walls, cabinets, angled structures, etc., using one or more ultraviolet light sources. A controller allows the system to adjust the quantity of ultraviolet light received by a surface by, for example, changing the intensity of energy input to an ultraviolet light source, changing a distance between an ultraviolet light source and a surface being irradiated, changing the speed/movement of the mobile platform to affect time of exposure, and/or by returning to contaminated areas for additional passes. The mobile platform may include a sensor capable of detecting fluorescence of biological contaminants irradiated with ultraviolet light to locate contaminated areas.

A need exists for a system and a method for efficiently sterilizing surfaces within an internal cabin of a vehicle. Further, a need exists for a mobile, compact, easy-to-use, consistent, reliable, and safe system and method for using UV light to sterilize surfaces within an internal cabin.

With those needs in mind, certain embodiments of the present disclosure provide an ultraviolet (UV) light system for pace control of an assembly, as defined in claim <NUM>.

In at least one embodiment, the one or more range light sources may be secured to the assembly.

As an example, the ranging light may be further configured to alter one or more of duration of emission of the ranging light, frequency of emission of the ranging light, color of the ranging light, or intensity of ranging light.

The UV lamp may be configured to emit the UV light having a wavelength between <NUM> - <NUM>. For example, the UV light may be emitted at wavelength of <NUM>.

In at least one other embodiment, the UV lamp may be configured to emit the UV light having a wavelength within the UVC spectrum, such as between <NUM> - <NUM>. For example, the UV light may be emitted at a wavelength of <NUM>.

In at least one embodiment, a pacing control unit may be in communication with the one or more range light sources. The pacing control unit may be configured to operate the one or more range light sources to alter the at least one aspect of the ranging light. The assembly may include the pacing control unit.

In at least one embodiment, a pacing database may be in communication with the pacing control unit. The pacing database may store surface disinfection data for one or more surfaces of one or more components.

In at least one embodiment, the pacing control unit may show surface disinfection information regarding the surface disinfection data for the component on a display of a user device.

In at least one embodiment, the pacing database may further store map data regarding at least one map of an environment. The at least one map may divide at least a portion of the environment into a plurality of zones. Each of the plurality of zones may be associated with respective surface disinfection data.

In at least one embodiment, the UV light pacing system may also include a user device including a display and a selector. For example, the selector may be configured to allow selection of a time period for at least a portion of the visual cue. The assembly may include the user device.

In at least one embodiment, a navigation sub-system may be configured to track a location of the assembly within an environment. As an example, the pacing control unit may be in communication with the assembly and the navigation sub-system. As a further example, the pacing control unit, based on the location of the assembly in relation to the component within the environment, may automatically determine surface disinfection data for the surface of the component.

In at least one embodiment, an augmented reality sub-system may be in communication with the assembly and the pacing control unit. As an example, the pacing control unit may automatically show one or both of surface disinfection data regarding the surface of the component or one or more visual indications for moving the assembly to disinfect various surfaces on a portion of the augmented reality sub-system as an operator moves through an environment.

In at least one embodiment, the assembly may further include a cover that covers the UV lamp. The cover may be one of a wire mesh screen or a stamped or laser cut metal sheet with formed apertures.

Certain non-claimed embodiments of the present disclosure may provide an ultraviolet (UV) light pacing method, including emitting ranging light from one or more range light sources of an assembly having a UV lamp configured to emit UV light to disinfect a component; and altering at least one aspect of the ranging light to provide a visual cue for guiding motion of the assembly to disinfect the component.

Certain non-claimed embodiments of the present disclosure may provide an ultraviolet (UV) light pacing system that includes an assembly including a UV lamp configured to emit UV light to disinfect a component. A cover is over, under, around, or the like (that is, covers) the UV lamp. The cover is one of a wire mesh screen or a stamped or laser cut metal sheet with formed apertures.

The foregoing summary, as well as the following detailed description of certain embodiments will be better understood when read in conjunction with the appended drawings. Further, references to "one embodiment" are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments "comprising" or "having" an element or a plurality of elements having a particular condition can include additional elements not having that condition.

Certain embodiments of the present disclosure provide a sanitizing system and method that includes an ultraviolet (UV) lamp (such as an excimer lamp having one or more light emitting devices, such as light emitting diodes, bulbs, and/or the like) that emits UV light in a far UV light spectrum, such as at a wavelength of <NUM>, which neutralizes (such as kills) microbes (for example, viruses and bacteria), while posing no risk to humans. Optionally, the UV lamp emits the UV light in the UVC spectrum, such as at a wavelength of <NUM>. The UV lamp may be used within an internal cabin to decontaminate and kill pathogens. The UV lamp may be used in a portable sanitizing system or a fixed sanitizing system. For example, operating the UV lamp to emit sanitizing UV light having a wavelength within the far UV spectrum or UV spectrum may be used with a portable system or a fixed system.

The effectiveness of a UV sanitation system is determined by a dose (such as in mJ/cm2) required to kill a targeted pathogen. The dose is a function of an optical power of the UV light (in watts) and the time of exposure. Certain embodiments of the present disclosure provide a pacing guidance system that provides a user with a cue (such as a visual cue, such as via altered ranging lighting) allowing them to provide a correct amount of time for sanitizing UV light exposure. Embodiments of the present disclosure allow a user to pace movement of a wand assembly during sanitation to ensure that a correct dose of UV light for disinfecting has been delivered. Embodiments of the present disclosure guide the user according to a required irradiation dose and/or a specific item or items being sanitized.

Certain embodiments of the present disclosure provide a method of pacing UV disinfection of a predetermined surface. The method includes calculating a wand speed, and loading the speed into a computer program. The program provides visual cues (such as altered ranging lighting) regarding a rate at which to move the wand, and may provide feedback so that the user can maintain said rate.

In at least one embodiment, the visual cues are altered light emitted from range light sources. For example, the range light sources emit ranging light onto a surface of a component that is being sanitized. The ranging light can be alternately deactivated and activated to provide a visual cue as to pacing of the wand assembly over the surface of the component. For example, the ranging light can blink at predetermined intervals to provide a timing cue for moving the wand assembly in relation to the surface of the component. As another example, the color of the ranging light can be changed at predetermined intervals to provide the timing cue. As another example, the intensity of the ranging light can be changed at predetermined intervals to provide the timing cue.

The wand speed is calculated by entering known parameters such as range to surface, irradiance of wand, disinfection energy required to sanitize the surface, wand length, and wand width to conduct calculations for time required to disinfect surfaces.

The speed of the UV wand movement determines the time of exposure, and typically determines whether or not the correct dose required to disinfect a surface is achieved. For example, a surface of a component may not be effectively sanitized if the UV wand is moved too quickly in relation to the surface. Certain embodiments of the present disclosure provide a UV light pacing system that allows a user to pace the movement of a UV wand assembly via light pulses from the ranging lights (such as LED range light sources).

In at least one embodiment, the UV light pacing system guides UV disinfection of an area being sanitized by dividing the area into subzones that are sanitized (for example, disinfected) through a series of time distinct passes (such as three, four, five, or six second passes) with the UV wand assembly, regardless of length. The pace of the UV wand movement is guided by a pulse frequency of the range light sources.

Certain embodiments of the present disclosure provide a system for pacing UV disinfection on a predetermined surface, including a UV wand assembly having range light sources that emit ranging light onto a surface of a component. The range light sources are controlled to emit the ranging light to pulse at a particular frequency, such as at predetermined intervals, to provide visual cues to pace the UV cleaning speed. A pacing control unit, such as an integrated circuit, controls the pulse time. In at least one embodiment, an area to be disinfected is divided into predefined zones based on known dimensions, such that each subzone is disinfected with one or more set time passes, such as one or more three second passes, of the UV wand assembly, regardless of length.

Certain embodiments of the present disclosure provide a method for disinfecting a surface of a component, including selecting a subzone to be disinfected, determining a number of set time passes required to disinfect the subzone, selecting an appropriate time period on a selector, sweeping a UV wand assembly across the subzone based on pulsating range light sources, and repeating the sweeping motion for a number of determined passes.

Certain embodiments of the present disclosure provide a system and a method for pacing disinfection of a surface using a portable UV wand assembly to ensure a correct UV irradiation dose has been delivered thereto. The system and method work in conjunction with range light sources to provide a visual cue to a user to provide the correct amount of time for sweeping the UV wand assembly across a predetermined subzone.

<FIG> illustrates a schematic block diagram of a UV light pacing system <NUM>, according to an embodiment of the present disclosure. The UV light pacing system <NUM> includes an assembly, such as a wand assembly <NUM> having one or more range light sources <NUM> and a UV lamp <NUM>. Alternatively, the range light sources <NUM> may be separate from the wand assembly <NUM>, such as on a separate housing that is used in conjunction with the wand assembly <NUM>. The range light sources <NUM> are configured to emit ranging light <NUM>, such as onto a surface <NUM> of a component <NUM> to be disinfected. The UV lamp <NUM> is configured to emit UV light <NUM> onto the surface <NUM> to disinfect the surface <NUM>. Optionally, the assembly may be other than a wand assembly. For example, the assembly may be a part of a system having an arm, boom, disc, shield, or the like including the UV lamp <NUM>.

As described herein, the UV light pacing system <NUM> includes the wand assembly <NUM> including the UV lamp <NUM>, which is configured to emit UV light <NUM> to disinfect the surface <NUM> of the component <NUM>. One or more range light sources <NUM> are configured to emit ranging light <NUM>. At least one aspect (for example, duration and/or frequency of emission, color of light, intensity of light, or the like) of the ranging light <NUM> is altered to provide a visual cue for guiding motion of the wand assembly <NUM> to disinfect the surface <NUM> of the component <NUM>. In at least one embodiment, the range light sources <NUM> are secured to the wand assembly <NUM>.

Further, as described herein, a UV light pacing method includes emitting ranging light from the one or more range light sources <NUM> of the wand assembly <NUM>, which has the UV lamp <NUM> that is configured to emit UV light <NUM> to disinfect the surface <NUM> of the component <NUM>. The method also includes altering at least one aspect (for example, duration and/or frequency of emission, color of light, intensity of light, or the like) of the ranging light <NUM> to provide a visual cue for guiding motion of the wand assembly <NUM> to disinfect the surface <NUM> of the component <NUM>.

In at least one embodiment, the range light sources <NUM> can be light emitting diodes (LEDs). The range light sources <NUM> emit the ranging light <NUM> to provide a visual indication of a proper distance (that is, a range) between the wand assembly <NUM> and the surface <NUM> to effectively disinfect the surface <NUM>. In at least one embodiment, the wand assembly <NUM> includes multiple range light sources <NUM>. For example, the wand assembly <NUM> includes at least one pair of associated range light sources <NUM>. In at least one other embodiment, the wand assembly <NUM> includes a single range light source <NUM>.

The UV lamp <NUM> emits the UV light <NUM> at a predetermined wavelength. For example, the UV lamp <NUM> emits the UV light <NUM> within a far UV spectrum. For example, the UV lamp <NUM> emits the UV light <NUM> at a wavelength of <NUM>. As another example, the UV lamp <NUM> emits the UV light <NUM> within the UVC spectrum.

A pacing control unit <NUM> is in communication with the range light sources <NUM>, such as through one or more wired or wireless connections. In at least one embodiment, the pacing control unit <NUM> is within the wand assembly <NUM>. That is, the wand assembly <NUM> includes the pacing control unit <NUM>. In at least one other embodiment, the pacing control unit <NUM> is remote from the wand assembly <NUM>, such as within a computing device, such as a desktop or laptop computer, a handheld smart device (such as a smart phone or tablet), or the like.

The pacing control unit <NUM> is configured to operate the one or more range light sources <NUM> to alter the at least one aspect of the ranging light <NUM>. In order to pace or otherwise guide motion of the wand assembly <NUM> in relation to the component <NUM> to properly and effectively disinfect the surface <NUM>, the pacing control unit <NUM> controls the range light sources <NUM> to alter the ranging light <NUM>. The altered light provides a visual cue that guides a pacing speed of motion of the wand assembly <NUM> in relation to the component <NUM>. For example, the pacing control unit <NUM> can selectively deactivate the range light sources <NUM> at predetermined times for a predetermined time period to provide a blinking and/or pulsing effect of the ranging light <NUM>. As an example, when the wand assembly <NUM> is activated so that the UV lamp <NUM> emits the UV light <NUM>, the pacing control unit <NUM> provides a timer that initially deactivates the ranging light <NUM> at an initial time, thereby providing an initial blink or deactivation, reactivates the ranging light for a set period (such as <NUM> or <NUM> seconds), after which the pacing control unit <NUM> again deactivates the ranging light, and so on. In this manner, the pacing control unit <NUM> operates the range light sources <NUM> to provide a series of light pulses at regular, predetermined intervals (such as emitted onto the surface) that provides a visual timing cue to an operator of the wand assembly <NUM>. For example, if the time interval between a first deactivation of the range light sources <NUM> (for example, a first blink) and a second deactivation of the range light sources <NUM> is one second, the operator is able to determine that each blink represents a second. As such, if an effective time for moving the wand assembly <NUM> in relation to the surface <NUM> to disinfect the surface is <NUM> seconds over a length of the surface <NUM>, the operator determines that the wand assembly <NUM> is to be moved over the length of the surface <NUM> for at least three additional deactivations after the initial deactivation (totaling three pulses of ranging light <NUM> on the surface <NUM>. Optionally, the time for each pulse of ranging light <NUM> (that is, the time of activation of the ranging light <NUM> between deactivations (for example, blinks) may be greater or less than <NUM> second. For example, the time for each pulse can be <NUM> seconds. As another example, the time for each pulse can be <NUM> seconds. As another example, the time for each pulse can be <NUM> seconds.

In at least one embodiment, the operator can select the time (for example, <NUM> second interval, <NUM> second interval, <NUM> second interval, <NUM> second interval, or the like) for each pulse via a selector <NUM> of a user device <NUM>. That is, the selector <NUM> is configured to allow selection of a time period for at least a portion of the visual cue, such as a time period for a pulse of the ranging light <NUM>. The user device <NUM> includes a user interface <NUM> that includes the display <NUM> and the selector <NUM>. In at least one embodiment, the display <NUM> and the selector <NUM> are part of a touchscreen interface. The selector <NUM> can be a virtual button, slide, switch, dial, and/or the like. Optionally, the selector <NUM> can be a physical button, slide, switch, dial, and/or the like.

In at least one embodiment, the user device <NUM> is a computing device, such as a personal or laptop computer, a handheld smart device (such as a smart phone or smart tablet), or the like. In at least one other embodiment, the wand assembly <NUM> includes the user device <NUM>. For example, the wand assembly <NUM> can include a handle having the user device <NUM>. Alternatively, the UV light pacing system <NUM> does not include the user device <NUM>.

Optionally, instead of the visual cues being light pulses, the color of the ranging light can be changed at predetermined intervals to provide the timing cues. As another example, the intensity of the ranging light can be changed at predetermined intervals to provide the timing cue.

In at least one embodiment, the UV light pacing system <NUM> includes a pacing database <NUM> in communication with the pacing control unit <NUM> and/or the user device <NUM>, such as through one or more wired or wireless connections. In at least one embodiment, the pacing database <NUM> is within the wand assembly <NUM>. For example, the wand assembly <NUM> may include the pacing database <NUM>. In at least one other embodiment, the pacing database <NUM> is remote from the wand assembly <NUM>.

The pacing database <NUM> stores surface disinfection data <NUM> for one or more surfaces of one or more components. The surface disinfection data <NUM> includes information regarding a dosage of UV light, a distance (including range between the wand assembly <NUM> and the surface <NUM>, and/or the length of the surface <NUM>), and a time for disinfection via the UV light <NUM>. For example, the surface disinfection data <NUM> includes dosage data <NUM> regarding the dosage of UV light to disinfect the surface <NUM>, distance data <NUM> regarding the distance in relation to the wand assembly <NUM> and the surface <NUM> to disinfect the surface <NUM>, and time data <NUM> regarding the time for disinfection via the UV light <NUM> emitted by the UV lamp <NUM>. The pacing database <NUM> may store surface disinfection data <NUM> for a plurality of surfaces <NUM> for a plurality of components <NUM>. For example, the surfaces <NUM> may be one or more zones or sub-zones within an internal cabin of a vehicle, such as a commercial aircraft.

In at least one embodiment, the surface disinfection data <NUM> may also differ for different pathogens to be killed, eliminated, neutralized, or the like during a disinfection process. For example, the surface disinfection data <NUM> for Covid-<NUM> may have a particular dosage data <NUM>, distance data <NUM>, and time data <NUM> for a particular surface <NUM> that differs from a dosage data <NUM>, distance data <NUM>, and time data <NUM> for a different pathogen, such as influenza, salmonella, MERS, or the like.

During operation, an operator of the wand assembly <NUM> consults the surface disinfection data <NUM> for a particular surface <NUM> to be sanitized to determine proper pacing of the wand assembly <NUM> in relation to the surface <NUM>. The surface disinfection data <NUM> can be shown in a guidebook. As another example, the operator can select a particular surface to be disinfected through the selector <NUM> of the user interface <NUM>, and the surface disinfection data <NUM> can be shown on the display <NUM>. For example, the operator can select a particular surface of a component via the user interface <NUM> to show the surface disinfection data <NUM> for that particular surface.

In at least one other embodiment, the UV light pacing system <NUM> includes a navigation sub-system <NUM> that is configured to track the location of the wand assembly <NUM> within an environment, such as within an internal cabin of a vehicle. The navigation sub-system <NUM> can be a global position system (GPS) sub-system, a localized three dimensional tracking sub-system, or the like. The navigation sub-system <NUM> is in communication with the pacing control unit <NUM> through one or more wired or wireless connections. As the wand assembly <NUM> is moved through the environment, the navigation sub-system <NUM> tracks the location of the wand assembly <NUM> in relation to various components <NUM> within the environment. The pacing control unit <NUM> monitors the location of the wand assembly <NUM> within the environment, via signals received from the navigation sub-system <NUM>. Based on the position of the wand assembly <NUM> in relation to the various components <NUM> within the environment, the pacing control unit <NUM> may automatically determine and selectively show the surface disinfection data <NUM> for the components <NUM> proximate to the wand assembly <NUM>. In this manner, the pacing control unit <NUM> may automatically show surface disinfection data <NUM> for different components <NUM> via the user interface <NUM> as the wand assembly <NUM> moves proximate (such as within <NUM> feet or less) the various components. Alternatively, the UV light pacing system <NUM> may not include the navigation sub-system <NUM>.

In at least one embodiment, the UV light pacing system <NUM> includes a an augmented reality sub-system <NUM>. The augmented reality sub-system <NUM> can include an augmented reality article, such as headset, glasses, or the like) in communication with an augmented reality control unit. The augmented reality sub-system <NUM> is in communication with the wand assembly <NUM> and the pacing control unit <NUM>, such as through one or more wired or wireless connections.

In operation, the operator wears the augmented reality article, and a map of the environment may be shown thereon and registered to and/or superimposed onto the actual environment. As the operator moves through the environment, the pacing control unit <NUM> may show surface disinfection data <NUM> for particular components on the augmented reality article. For example, the pacing control unit <NUM> may match actual components to those of a stored map of the environment. As such, the pacing control unit <NUM> may automatically show the surface disinfection data <NUM> and/or visual indications for moving the wand assembly <NUM> to disinfect various surfaces as the operator moves through the environment. Alternatively, the UV light pacing system <NUM> may not include the augmented reality sub-system <NUM>.

As used herein, the term "control unit," "central processing unit," "CPU," "computer," or the like may include any processor-based or microprocessor-based system including systems using microcontrollers, reduced instruction set computers (RISC), application specific integrated circuits (ASICs), logic circuits, and any other circuit or processor including hardware, software, or a combination thereof capable of executing the functions described herein. Such are exemplary only, and are thus not intended to limit in any way the definition and/or meaning of such terms. For example, the pacing control unit <NUM> may be or include one or more processors that are configured to control operation, as described herein.

The pacing control unit <NUM> is configured to execute a set of instructions that are stored in one or more data storage units or elements (such as one or more memories), in order to process data. For example, the pacing control unit <NUM> may include 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 an information source or a physical memory element within a processing machine.

The set of instructions may include various commands that instruct the pacing control unit <NUM> as a processing machine to perform specific operations such as the methods and processes of the 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. Further, 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, or in response to results of previous processing, or in response to a request made by another processing machine.

The diagrams of embodiments herein may illustrate one or more control or processing units, such as the pacing control unit <NUM>. It is to be understood that the processing or control units may represent circuits, circuitry, or portions thereof that may be implemented as hardware with associated instructions (e.g., software stored on a tangible and non-transitory computer readable storage medium, such as a computer hard drive, ROM, RAM, or the like) that perform the operations described herein. The hardware may include state machine circuitry hardwired to perform the functions described herein. Optionally, the hardware may include electronic circuits that include and/or are connected to one or more logicbased devices, such as microprocessors, processors, controllers, or the like. Optionally, the pacing control unit <NUM> may represent processing circuitry such as one or more of a field programmable gate array (FPGA), application specific integrated circuit (ASIC), microprocessor(s), and/or the like. The circuits in various embodiments may be configured to execute one or more algorithms to perform functions described herein. The one or more algorithms may include aspects of embodiments disclosed herein, whether or not expressly identified in a flowchart or a method.

<FIG> illustrates a perspective view of the wand assembly <NUM> in relation to the surface <NUM> of the component <NUM>, according to an embodiment of the present disclosure. <FIG> illustrates a perspective bottom view of the wand assembly <NUM>. <FIG> illustrates a front view of the surface <NUM> of the component <NUM> when the wand assembly <NUM> is outside of a disinfection range, according to an embodiment of the present disclosure. <FIG> illustrates a front view of the surface <NUM> of the component <NUM> when the wand assembly <NUM> is at the disinfection range, according to an embodiment of the present disclosure.

Referring to <FIG>, a range light source 130a emits the ranging light 131a, such as a first light marker, at a first color, and the range light source 130b emits the ranging light 131b, such as a second light marker, at a second color. The ranging light 131a and the ranging light 131b converge at a predetermined disinfection range <NUM>. For example, the disinfection range <NUM> may be <NUM> inches or less between the bottom <NUM> of the wand assembly <NUM> and the surface <NUM>. The ranging light 131a and 130b diverge at a distance <NUM> outside of the disinfection range <NUM>.

On the surface <NUM>, the ranging lights 130a and 130b provide visual cues as to the correct distance for disinfection. For example, as shown in <FIG>, the ranging lights 130a and 130b are separated from one another, thereby indicating that the wand assembly <NUM> is outside of the disinfection range <NUM>. In contrast, as shown in <FIG>, the ranging lights 130a and 130b are at an overlapping convergence 130c, thereby indicating that the wand assembly <NUM> is at or otherwise within the disinfection range <NUM>.

Referring to <FIG>, the range light sources <NUM> provide visual cues for the disinfection range <NUM>, as well as timing for movement (for example, pacing) of the wand assembly <NUM> to disinfect the surface <NUM>. For example, the pacing control unit <NUM> alters one or more aspects of the ranging light <NUM>, such as selective deactivation/activation, color, intensity, and/or the like.

<FIG> illustrates a perspective bottom view of the wand assembly <NUM>, according to an embodiment of the present disclosure. In at least one embodiment, the wand assembly <NUM> includes a cover <NUM> on a bottom end. The cover <NUM> is below the UV lamp <NUM> (shown in <FIG>), and is configured to allow UV light emitted from the UV lamp <NUM> to pass therethrough.

As shown, the cover <NUM> can be a mesh screen <NUM> including a plurality of longitudinal beams <NUM> that intersect a plurality of cross beams <NUM>, thereby forming a plurality of light passages <NUM> therebetween. The mesh screen <NUM> may be a wire mesh that covers the UV lamp <NUM> within the wand assembly <NUM>.

In at least one embodiment, the cover <NUM> is a stamped or laser cut stainless steel sheet with formed apertures (that is, the light passages <NUM>). The apertures may be rectangular or square shaped as shown in <FIG>.

It has been found that the cover <NUM> formed as a metal mesh screen or stamped sheet of metal, as described herein, provides shielding from electromagnetic interference (EMI). For example, the cover <NUM> protects the UV lamp <NUM> from EMI that may be generated outside of the wand assembly <NUM>. Further, the cover <NUM> eliminates, minimizes, or otherwise reduces a potential of EMI generated within the wand assembly <NUM> from passing out of the wand assembly <NUM>.

The cover <NUM> shown and described with respect to <FIG> can be used with any of the wand assemblies shown and described herein.

<FIG> illustrates an exemplary circuit diagram of the range light sources <NUM> of the wand assembly <NUM> (shown in <FIG>, for example), according to an embodiment of the present disclosure. Referring to <FIG> and <FIG>, the pacing control unit <NUM> outputs a timer start signal <NUM> to initiate the selective deactivation and activation of the range light sources <NUM> to provide the distinct pulses of ranging light <NUM> to provide a visual cue to an operator for timing a speed of motion of the wand assembly <NUM> in relation to the surface <NUM>. The circuit shown in <FIG> is merely exemplary. The range light sources <NUM> may include or be part of different circuits.

<FIG> illustrates a map <NUM> of an interior <NUM> of a flight deck <NUM> of an aircraft, according to an embodiment of the present disclosure. <FIG> illustrates a map <NUM> of an exterior <NUM> of the flight deck <NUM> of the aircraft, according to an embodiment of the present disclosure. Referring to <FIG>, the flight deck <NUM> is an example of an environment that is to be disinfected by the wand assembly <NUM> (shown in <FIG>). In at least one embodiment, the maps <NUM> and <NUM> are stored as map data within the pacing database <NUM> (shown in <FIG>), for example.

The maps <NUM> and <NUM> divide the flight deck <NUM> into a plurality of zones and/or subzones. Each of the zones and/or subzones is associated with particular surface disinfection data <NUM> (shown in <FIG>) that provided information for disinfecting each zone and/or subzone.

As examples, the zones include overhead lining 1a and 1b, overhead panel <NUM>, windows 3a, 3b, 3c, and 3d, glareshield panel <NUM>, instruments panels 5a and 5b, center instrument panel <NUM>, steering columns 7a and 7b, sidewall liners 8a and 8b, electronic panel <NUM>, seats 10a and 10b, control stand <NUM>, electronic panel <NUM>, overhead panel <NUM> and flight compartment door <NUM>. Each of the zones can be further divided into subzones.

The zones and environment shown in <FIG> are merely exemplary. The maps <NUM> and <NUM> can be associated with various different environments having different zones and subzones than shown. For example, the maps <NUM> and/or <NUM> may be associated with an internal cabin of a different vehicle, an interior space within a building, or the like.

Referring to <FIG>, <FIG>, in at least one embodiment, a method for disinfecting various surfaces within the aircraft includes selecting a surface associated with one of the zones to be disinfected, such as through the user device <NUM>. Next, the pacing control unit <NUM> retrieves the surface disinfection data <NUM> for the selected zone from the pacing database <NUM>. The surface disinfection data <NUM> provides instructions for disinfecting the selected zone, such as with respect to a number of sweeps by the wand assembly <NUM> of the surface <NUM> and a time for each sweep, as guided by the visual cues from the range light sources <NUM>. The instructions may be shown on the display <NUM>, for example. The wand assembly <NUM> is then operated and moved according to the instructions.

In at least one embodiment, each of the zones may be based on known dimensions. One or more of the zones may be further divided into subzones. In at least one embodiment, each subzone may be disinfected by one or more <NUM> second passes of the wand assembly <NUM>, regardless of length. The number of passes may be determined by the size of the subzone. Additionally, other areas of the aircraft may be divided into similar subzones.

<FIG> illustrates a front view of a disinfecting instruction <NUM> for a surface associated with a zone of a map, according to an embodiment of the present disclosure. Referring to <FIG> and <FIG>, in at least one embodiment, surface disinfection information, which represents the surface disinfection data <NUM>, includes the disinfecting instruction <NUM> for the surface <NUM> to be disinfected. The surface <NUM> of the component <NUM> is associated with the zone. Optionally, the disinfecting instruction may be for the surface, whether or not associated with a zone of a map.

The disinfecting instruction <NUM> may be shown on the display <NUM> of the user device <NUM>, for example. As another example, the disinfecting instruction <NUM> may be shown on the augmented reality article of the augmented reality sub-system <NUM>. As another example, the disinfecting instruction <NUM> may be shown on a disinfecting guidebook.

As shown, the disinfecting instruction <NUM> includes a direction <NUM> of sweep of the wand assembly in relation to the surface, a time <NUM> of the sweep over a length of the surface, and a number <NUM> of sweeps. As shown in <FIG>, the disinfecting instruction <NUM> indicates a sweep from left to right for three seconds to be performed twice. The disinfecting instruction <NUM> shown in <FIG> is merely exemplary. The disinfecting instruction <NUM> may include a different direction, a different time, and a different number of sweeps that shown. The timing of the sweep is guided by the visual cues as provided by the pacing control unit <NUM> altering one or more aspects of the range light sources <NUM> (such as, for example, selective deactivation/activation to provide pulses of light, color changes of the light, intensity changes of the light, and/or the like).

<FIG> illustrates a front view of a disinfecting instruction <NUM> for a surface associated with a zone of a map, according to an embodiment of the present disclosure. The disinfecting instruction <NUM> shown in <FIG> is merely exemplary. As shown in <FIG>, the disinfecting instruction <NUM> indicates a sweep from left to right for three seconds to be performed four times.

Referring to <FIG>, each of the zones of the maps <NUM> and <NUM> is associated with surface disinfection data <NUM>, represented, at least in part, by a disinfecting instruction <NUM>. The surface disinfection data <NUM> for at least two of the zones may differ. As each zone is selected for disinfecting, such as via the user device <NUM>, the disinfecting instruction <NUM> for the selected zone may be shown on the display <NUM>. Optionally, the disinfecting instructions <NUM> may be audio signals broadcast through a speaker of the user device <NUM>.

<FIG> illustrates a flow chart of a UV light pacing method, according to an embodiment of the present disclosure. The UV light pacing method includes emitting, at <NUM>, ranging light from one or more range light sources of a wand assembly having a UV lamp configured to emit UV light to disinfect a surface of a component; and altering, at <NUM>, at least one aspect of the ranging light to provide a visual cue for guiding motion of the wand assembly to disinfect the surface of the component.

<FIG> illustrates a perspective view of a portable sanitizing system <NUM> worn by an individual <NUM>, according to an embodiment of the present disclosure. The portable sanitizing system <NUM> includes a wand assembly <NUM> coupled to a backpack assembly <NUM> that is removably secured to the individual through a harness <NUM>. The wand assembly <NUM> includes a sanitizing head <NUM> coupled to a handle <NUM>. In at least one embodiment, the sanitizing head <NUM> is moveably coupled to the handle <NUM> through a coupler <NUM>.

The wand assembly <NUM> is an example of the wand assembly <NUM> shown and described with respect to <FIG>, for example. In at least one embodiment, the wand assembly <NUM> includes range light sources and is configured to guide pacing motion and timing through visual cues from ranging light output by the range light sources.

As shown in <FIG>, the wand assembly <NUM> is in a stowed position. In the stowed position, the wand assembly <NUM> is removably secured to a portion of the backpack assembly <NUM>, such as through one or more tracks, clips, latches, belts, ties, and/or the like.

<FIG> illustrates a perspective lateral top view of the wand assembly <NUM>, according to an embodiment of the present disclosure. The sanitizing head <NUM> couples to the handle <NUM> through the coupler <NUM>. The sanitizing head <NUM> includes a shroud <NUM> having an outer cover <NUM> that extends from a proximal end <NUM> to a distal end <NUM>. As described herein, the shroud <NUM> contains a UV lamp.

A port <NUM> extends from the proximal end <NUM>. The port <NUM> couples to a hose <NUM>, which, in turn, couples to the backpack assembly <NUM> (shown in <FIG>). The hose <NUM> contains electrical cords, cables, wiring, or the like that couples a power source or supply (such as one or more batteries) within the backpack assembly <NUM> (shown in <FIG>) to a UV lamp <NUM> within the shroud <NUM>. Optionally, the electrical cords, cables, wiring, or the like may be outside of the hose <NUM>. The hose <NUM> also contains an air delivery line, such as an air tube) that fluidly couples an internal chamber of the shroud <NUM> to an air blower, vacuum generator, air filters, and/or the like within the backpack assembly <NUM>.

The coupler <NUM> is secured to the outer cover <NUM> of the shroud <NUM>, such as proximate to the proximal end <NUM>. The coupler <NUM> may include a securing beam <NUM> secured to the outer cover <NUM>, such as through one or more fasteners, adhesives, and/or the like. An extension beam <NUM> outwardly extends from the securing beam <NUM>, thereby spacing the handle <NUM> from the shroud <NUM>. A bearing assembly <NUM> extends from the extension beam <NUM> opposite from the securing beam <NUM>. The bearing assembly <NUM> includes one or more bearings, tracks, and/or the like, which allow the handle <NUM> to linearly translate relative to the coupler <NUM> in the directions of arrows A, and/or pivot about a pivot axle in the directions of arc B. Optionally, the securing beam <NUM> may include a bearing assembly that allows the sanitizing head <NUM> to translate in the directions of arrows A, and/or rotate (for example, swivel) in the directions of arc B in addition to, or in place of, the handle <NUM> being coupled to the bearing assembly <NUM> (for example, the handle <NUM> may be fixed to the coupler <NUM>).

In at least one embodiment, the handle <NUM> includes a rod, pole, beam, or the like <NUM>, which may be longer than the shroud <NUM>. Optionally, the rod <NUM> may be shorter than the shroud <NUM>. One or more grips <NUM> are secured to the rod <NUM>. The grips <NUM> are configured to be grasped and held by an individual. The grips <NUM> may include ergonomic tactile features <NUM>.

Optionally, the wand assembly <NUM> may be sized and shaped differently than shown. For example, in at least one embodiment, the handle <NUM> may be fixed in relation to the shroud <NUM>. Further, the handle <NUM> may or may not be configured to move relative to itself and/or the shroud <NUM>. For example, the handle <NUM> and the shroud <NUM> may be integrally molded and formed as a single unit.

In at least one embodiment, the wand assembly <NUM> is not coupled to a backpack assembly. For example, the wand assembly <NUM> is a standalone unit having a power source, such as one or more batteries. As another example, the wand assembly <NUM> is coupled to a case assembly. In at least one other embodiment, the wand assembly <NUM> is coupled to a UV light sanitizing cart.

<FIG> illustrates a perspective rear view of the wand assembly <NUM> of <FIG>. <FIG> illustrates a perspective lateral view of the wand assembly <NUM> of <FIG>. Referring to <FIG>, the handle <NUM> may pivotally couple to the coupler <NUM> through a bearing <NUM> having a pivot axle <NUM> that pivotally couples the handle <NUM> to the coupler <NUM>. The handle <NUM> may further be configured to linearly translate into and out of the bearing <NUM>. For example, the handle <NUM> may be configured to telescope in and out. Optionally, or alternatively, in at least one embodiment, the handle <NUM> may include a telescoping body that allows the handle <NUM> to outwardly extend and inwardly recede.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> in a compact deployed position, according to an embodiment of the present disclosure. The wand assembly <NUM> is removed from the backpack assembly <NUM> (as shown in <FIG>) into the compact deployed position, as shown in <FIG>. The hose <NUM> connects the wand assembly <NUM> to the backpack assembly <NUM>. In the compact deployed position, the sanitizing head <NUM> is fully retracted in relation to the handle <NUM>.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> having the sanitizing head <NUM> in an extended position, according to an embodiment of the present disclosure. In order to extend the sanitizing head <NUM> relative to the handle <NUM>, the sanitizing head <NUM> is outwardly slid relative to the handle <NUM> in the direction of arrow A' (or the handle <NUM> is rearwardly slid relative to the sanitizing head <NUM>). As noted, the sanitizing head <NUM> is able to linearly translate in the direction of arrow A' relative to the handle <NUM> via the coupler <NUM>. The outward extension of the sanitizing head <NUM>, as shown in <FIG>, allows for the portable sanitizing system <NUM> to easily reach distant areas. Alternatively, the sanitizing head <NUM> may not linearly translate relative to the handle <NUM>.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> having the sanitizing head <NUM> in an extended position and the handle <NUM> in an extended position, according to an embodiment of the present disclosure. To reach even further, the handle <NUM> may be configured to linearly translate, such as through a telescoping portion, to allow the sanitizing head <NUM> to reach further outwardly. Alternatively, the handle <NUM> may not be configured to extend and retract.

In at least one embodiment, the handle <NUM> may include a lock <NUM>. The lock <NUM> is configured to be selectively operated to secure the handle <NUM> into a desired extended (or retracted) position.

<FIG> illustrates a perspective view of the portable sanitizing system <NUM> having the sanitizing head <NUM> rotated in relation to the handle <NUM>, according to an embodiment of the present disclosure. As noted, the sanitizing head <NUM> is configured to rotate relative to the handle <NUM> via the coupler <NUM>. Rotating the sanitizing head <NUM> relative to the handle <NUM> allows the sanitizing head <NUM> to be moved to a desired position, and sweep or otherwise reach into areas that would otherwise be difficult to reach if the sanitizing head <NUM> was rigidly fixed to the handle <NUM>. Alternatively, the sanitizing head <NUM> may not be rotatable relative to the handle <NUM>.

<FIG> illustrates a perspective end view of a UV lamp <NUM> and a reflector <NUM> of the sanitizing head <NUM>, according to an embodiment of the present disclosure. The UV lamp <NUM> and the reflector <NUM> are secured within the shroud <NUM> (shown in <FIG>, for example) of the sanitizing head <NUM>. In at least one embodiment, the reflector <NUM> is secured to an underside <NUM> of the shroud <NUM>, such as through one or more adhesives. As another example, the reflector <NUM> is an integral part of the shroud <NUM>. For example, the reflector <NUM> may be or otherwise provide the underside <NUM> of the shroud <NUM>. The reflector <NUM> provides a reflective surface <NUM> (such as formed of Teflon, a mirrored surface, and/or the like) that is configured to outwardly reflect UV light emitted by the UV lamp <NUM>. In at least one example, shroud <NUM> may be or include a shell formed of fiberglass, and the reflector <NUM> may be formed of Teflon that provides a <NUM>% reflectivity.

The reflector <NUM> may extend along an entire length of the underside <NUM> of the shroud <NUM>. Optionally, the reflector <NUM> may extend along less than an entire length of the underside <NUM> of the shroud <NUM>.

The UV lamp <NUM> may extend along an entire length (or along substantially the entire length, such as between the ends <NUM> and <NUM>). The UV lamp <NUM> is secured to the reflector <NUM> and/or the shroud <NUM> through one or more brackets, for example. The UV lamp <NUM> includes one or more UV light emitters, such as one more bulbs, light emitting elements (such as light emitting diodes), and/or the like. In at least one embodiment, the UV lamp <NUM> is configured to emit UV light in the far UV spectrum, such as at a wavelength between <NUM> - <NUM>. In at least one embodiment, the UV lamp <NUM> is configured to emit UV light having a wavelength of <NUM>. For example, the UV lamp <NUM> may be or include a <NUM> W bulb that is configured to emit UV light having a wavelength of <NUM>. Optionally, the UV lamp <NUM> may emit UV light having a different wavelength, such as within the UVC spectrum.

In at least one other embodiment, the UV lamp <NUM> is configured to emit UV light in the UVC spectrum, such as at a wavelength between <NUM> - <NUM>. In at least one embodiment, the UV lamp <NUM> is configured to emit UV light having a wavelength of <NUM>.

As shown, the reflector <NUM> includes flat, upright side walls <NUM> connected together through an upper curved wall <NUM>. The upper curved wall <NUM> may be bowed outwardly away from the UV lamp <NUM>. For example, the upper curved wall <NUM> may have a parabolic cross-section and/or profile.

It has been found that the straight, linear side walls <NUM> provide desired reflection and/or focusing of UV light emitted from the UV lamp <NUM> toward and onto a desired location. Alternatively, the side walls <NUM> may not be linear and flat.

<FIG> illustrates a perspective end view of the UV lamp <NUM> and a reflector <NUM> of the sanitizing head <NUM>, according to an embodiment of the present disclosure. The reflector <NUM> shown in <FIG> is similar to the reflector <NUM> shown in <FIG>, except that the side walls <NUM> may outwardly cant from the upper curved wall <NUM>.

<FIG> illustrates a perspective end view of the UV lamp <NUM> and the reflector <NUM> of the sanitizing head, according to an embodiment of the present disclosure. In this embodiment, the side walls <NUM> may be curved according to the curvature of the upper curved wall <NUM>.

<FIG> illustrates a perspective top view of the sanitizing head <NUM>. <FIG> illustrates a perspective bottom view of the sanitizing head <NUM>. <FIG> illustrates an axial cross-sectional view of the sanitizing head <NUM> through line <NUM>-<NUM> of <FIG>. Referring to <FIG>, air <NUM> is configured to be drawn into the sanitizing head <NUM> through one or more openings <NUM> (or simply an open chamber) of the shroud <NUM>. The air <NUM> is drawn into the sanitizing head <NUM>, such as via a vacuum generator within the backpack assembly <NUM> (shown in <FIG>). The air <NUM> is drawn into the shroud <NUM>, and cools the UV lamp <NUM> as it passes over and around the UV lamp <NUM>. The air <NUM> passes into the port <NUM> and into the hose <NUM>, such as within an air tube within the hose <NUM>. The air <NUM> not only cools the UV lamp <NUM>, but also removes ozone, which may be generated by operation of the UV lamp <NUM>, within the shroud <NUM>. The air <NUM> may be drawn to an air filter, such as an activated carbon filter, within the backpack assembly <NUM>.

In at least one embodiment, the portable sanitizing system <NUM> may also include an alternative ozone mitigation system. As an example, the ozone mitigation system may be disposed in the shroud <NUM> or another portion of the system, and may include an inert gas bath, or a face inert gas system, such as in <CIT>.

Referring to <FIG>, in particular, a bumper <NUM> may be secured to an exposed lower circumferential edge <NUM> of the shroud <NUM>. The bumper <NUM> may be formed of a resilient material, such as rubber, another elastomeric material, open or closed cell foam, and/or the like. The bumper <NUM> protects the sanitizing head <NUM> from damage in case the sanitizing head <NUM> inadvertently contacts a surface. The bumper <NUM> also protects the surface from damage.

The openings <NUM> may be spaced around the lower surface of the shroud <NUM> such that they do not provide a direct view of the UV lamp <NUM>. For example, the openings <NUM> may be positioned underneath portions that are spaced apart from the UV lamp <NUM>.

Referring to <FIG>, in particular, the sanitizing head <NUM> may include a cover plate <NUM> below the UV lamp <NUM>. The cover plate <NUM> may be formed of glass, for example, and may be configured to filter UV light emitted by the UV lamp <NUM>. The UV lamp <NUM> may be secured within an interior chamber <NUM> defined between the reflector <NUM> and the cover plate <NUM>. In at least one embodiment, the cover plate <NUM> is or otherwise includes a far UV band pass filter. For example, the cover plate <NUM> may be a <NUM> band pass filter that filters UV light emitted by the UV lamp <NUM> to a <NUM> wavelength. As such, UV light that is emitted from the sanitizing head <NUM> may be emitted at a wavelength of <NUM>.

Referring to <FIG>, a rim <NUM> (such as a <NUM> thick Titanium rim) may connect the cover plate <NUM> to the shroud <NUM>. The rim <NUM> may distribute impact loads therethrough and/or therearound.

In at least one embodiment, ranging light emitting diodes (LEDs) <NUM> (which are examples of the range light sources) may be disposed proximate to ends of the UV lamp <NUM>. The ranging LEDs <NUM> may be used to determine a desired range to a structure that is to be sanitized, for example. In at least one embodiment, the ranging LEDs <NUM> may be disposed on or within the rim <NUM> and/or the cover plate <NUM>.

<FIG> illustrates a perspective end view of the UV lamp <NUM> secured to a mounting bracket or clamp <NUM>, according to an embodiment of the present disclosure. Each end of the UV lamp <NUM> may be coupled to a mounting bracket or clamp <NUM>, which secures the UV lamp <NUM> to the shroud <NUM> (shown in <FIG>). A buffer, such as a thin (for example, <NUM>) sheet of silicon may be disposed between the end of the UV lamp <NUM> and the bracket <NUM>. Optionally, the UV lamp <NUM> may be secured to the shroud <NUM> through brackets or clamps that differ in size and shape than shown. As another example, the UV lamp <NUM> may be secured to the shroud <NUM> through adhesives, fasteners, and/or the like.

<FIG> illustrates a perspective exploded view of the backpack assembly <NUM>, according to an embodiment of the present disclosure. The backpack assembly <NUM> includes a front wall <NUM> that couples to a rear shell <NUM>, a base <NUM>, and a top cap <NUM>. An internal chamber <NUM> is defined between the front wall <NUM>, the rear shell <NUM>, the base <NUM>, and the top cap <NUM>. One or more batteries <NUM>, such as rechargeable Lithium batteries, are contained within the internal chamber <NUM>. An air generation sub-system <NUM> is also contained within the internal chamber <NUM>. The air generation sub-system <NUM> is in fluid communication with an air tube within the hose <NUM> (shown in <FIG>, for example). The air generation sub-system <NUM> may include an airflow device, such as a vacuum generator, an air blower, and/or the like. The airflow device is configured to generate airflow to cool the UV lamp, draw air from the sanitizing head <NUM> into the backpack assembly <NUM> and out through an exhaust, draw or otherwise remove generated ozone away from the shroud <NUM>, and/or the like.

One or more air filters <NUM>, such as carbon filters, are within the backpack assembly <NUM>. The air filters <NUM> are in communication with the air tube or other such delivery duct or line that routes air through the hose <NUM> and into the backpack assembly <NUM>. The air filters <NUM> are configured to filter the air that is drawn into the backpack assembly <NUM> from the shroud <NUM>. For example, the air filters <NUM> may be configured to remove, deactivate, or otherwise neutralize ozone.

The batteries <NUM> and/or a power supply within the backpack assembly <NUM> provides operating power for the UV lamp <NUM> of the sanitizing head <NUM> (shown in <FIG>, for example). The top wall <NUM> may be removably coupled to the front wall <NUM> and the rear shell <NUM>. The top wall <NUM> may be removed to provide access to the batteries <NUM> (such as to remove and/or recharge the batteries), for example. Additional space may be provided within the backpack assembly <NUM> for storage of supplies, additional batteries, additional components, and/or the like. In at least one embodiment, the front wall <NUM>, the rear shell <NUM>, the base <NUM>, and the top cap <NUM> may be formed of fiberglass epoxy.

<FIG> illustrates a perspective front view of the harness <NUM> coupled to the backpack assembly <NUM>, according to an embodiment of the present disclosure. The harness <NUM> may include shoulder straps <NUM> and/or a waist or hip belt or strap <NUM>, which allow the individual to comfortably wear the backpack assembly <NUM>.

Referring to <FIG>, in operation, the individual may walk through an area wearing the backpack assembly <NUM>. When a structure to be sanitized is found, the individual may position grasp the handle <NUM> and position the sanitizing head <NUM> as desired, such as by extending and/or rotating the sanitizing head <NUM> relative to the handle <NUM>. The individual may then engage an activation button on the handle <NUM>, for example, to activate the UV lamp <NUM> to emit sanitizing UV light onto the structure. As the UV lamp <NUM> is activated, air <NUM> is drawn into the shroud <NUM> to cool the UV lamp <NUM>, and divert any generated ozone into the backpack assembly <NUM>, where it is filtered by the air filters <NUM>.

The extendable wand assembly <NUM> allows the sanitizing head <NUM> to reach distant areas, such as over an entire set of three passenger seats, from a row within an internal cabin of a commercial aircraft.

<FIG> illustrates an ultraviolet light spectrum. Referring to <FIG>, in at least one embodiment, the sanitizing head <NUM> is configured to emit sanitizing UV light (through operation of the UV lamp <NUM>) within a far UV spectrum, such as between <NUM> to <NUM>. In at least one embodiment, the sanitizing head <NUM> emits sanitizing UV light having a wavelength of <NUM>.

In at least one other embodiment, the sanitizing head <NUM> is configured to emit sanitizing UV light within the UVC spectrum, such as between <NUM> - <NUM>. In at least one embodiment, the sanitizing head <NUM> emits sanitizing UV light having a wavelength of <NUM>.

<FIG> illustrates a perspective front view of an aircraft <NUM>, according to an embodiment of the present disclosure. The aircraft <NUM> includes a propulsion system <NUM> that includes engines <NUM>, for example. Optionally, the propulsion system <NUM> may include more engines <NUM> than shown. The engines <NUM> are carried by wings <NUM> of the aircraft <NUM>. In other embodiments, the engines <NUM> may be carried by a fuselage <NUM> and/or an empennage <NUM>. The empennage <NUM> may also support horizontal stabilizers <NUM> and a vertical stabilizer <NUM>.

The fuselage <NUM> of the aircraft <NUM> defines an internal cabin <NUM>, which includes a flight deck or cockpit, one or more work sections (for example, galleys, personnel carry-on baggage areas, and the like), one or more passenger sections (for example, first class, business class, and coach sections), one or more lavatories, and/or the like. The internal cabin <NUM> includes one or more lavatory systems, lavatory units, or lavatories, as described herein.

Embodiments of the present disclosure are used to disinfect various components within the internal cabin <NUM>. Alternatively, instead of an aircraft, embodiments of the present disclosure may be used with various other vehicles, such as automobiles, buses, locomotives and train cars, watercraft, and the like. Further, embodiments of the present disclosure may be used with respect to fixed structures, such as commercial and residential buildings.

<FIG> illustrates a top plan view of an internal cabin <NUM> of an aircraft, according to an embodiment of the present disclosure. The internal cabin <NUM> may be within the fuselage <NUM> of the aircraft, such as the fuselage <NUM> of <FIG>. For example, one or more fuselage walls may define the internal cabin <NUM>. The internal cabin <NUM> includes multiple sections, including a front section <NUM>, a first class section <NUM>, a business class section <NUM>, a front galley station <NUM>, an expanded economy or coach section <NUM>, a standard economy of coach section <NUM>, and an aft section <NUM>, which may include multiple lavatories and galley stations. It is to be understood that the internal cabin <NUM> may include more or less sections than shown. For example, the internal cabin <NUM> may not include a first class section, and may include more or less galley stations than shown. Each of the sections may be separated by a cabin transition area <NUM>, which may include class divider assemblies between aisles <NUM>.

The aisles <NUM>, <NUM>, and <NUM> extend to egress paths or door passageways <NUM>. Exit doors <NUM> are located at ends of the egress paths <NUM>. The egress paths <NUM> may be perpendicular to the aisles <NUM>, <NUM>, and <NUM>. The internal cabin <NUM> may include more egress paths <NUM> at different locations than shown. The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize various structures within the internal cabin <NUM>, such as passenger seats, monuments, stowage bin assemblies, components on and within lavatories, galley equipment and components, and/or the like.

<FIG> illustrates a top plan view of an internal cabin <NUM> of an aircraft, according to an embodiment of the present disclosure. The internal cabin <NUM> is an example of the internal cabin <NUM> shown in <FIG>. The internal cabin <NUM> may be within a fuselage <NUM> of the aircraft. For example, one or more fuselage walls may define the internal cabin <NUM>. The internal cabin <NUM> includes multiple sections, including a main cabin <NUM> having passenger seats <NUM>, and an aft section <NUM> behind the main cabin <NUM>. It is to be understood that the internal cabin <NUM> may include more or less sections than shown.

The aisle <NUM> extends to an egress path or door passageway <NUM>. Exit doors <NUM> are located at ends of the egress path <NUM>. The egress path <NUM> may be perpendicular to the aisle <NUM>. The internal cabin <NUM> may include more egress paths than shown. The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize various structures within the internal cabin <NUM>, such as passenger seats, monuments, stowage bin assemblies, components on and within lavatories, galley equipment and components, and/or the like.

<FIG> illustrates a perspective interior view of an internal cabin <NUM> of an aircraft, according to an embodiment of the present disclosure. The internal cabin <NUM> includes outboard walls <NUM> connected to a ceiling <NUM>. Windows <NUM> may be formed within the outboard walls <NUM>. A floor <NUM> supports rows of seats <NUM>. As shown in <FIG>, a row <NUM> may include two seats <NUM> on either side of an aisle <NUM>. However, the row <NUM> may include more or less seats <NUM> than shown. Additionally, the internal cabin <NUM> may include more aisles than shown.

Overhead stowage bin assemblies <NUM> are secured to the ceiling <NUM> and/or the outboard wall <NUM> above and inboard from the PSU <NUM> on either side of the aisle <NUM>. The overhead stowage bin assemblies <NUM> are secured over the seats <NUM>. The overhead stowage bin assemblies <NUM> extend between the front and rear end of the internal cabin <NUM>. Each stowage bin assembly <NUM> may include a pivot bin or bucket <NUM> pivotally secured to a strongback (hidden from view in <FIG>). The overhead stowage bin assemblies <NUM> may be positioned above and inboard from lower surfaces of the PSUs <NUM>. The overhead stowage bin assemblies <NUM> are configured to be pivoted open in order to receive passenger carry-on baggage and personal items, for example.

The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize various structures shown within the internal cabin <NUM>.

When not in use, the portable sanitizing system <NUM> may be stored within a closet, galley cart bay, or galley cart, such as within the internal cabin of the vehicle.

<FIG> illustrates a perspective internal view of a lavatory <NUM> within an internal cabin of a vehicle, such as any of the internal cabins described herein. The lavatory <NUM> is an example of an enclosed space, monument or chamber, such as within the internal cabin a vehicle. The lavatory <NUM> may be onboard an aircraft, as described above. Optionally, the lavatory <NUM> may be onboard various other vehicles. In other embodiments, the lavatory <NUM> may be within a fixed structure, such as a commercial or residential building. The lavatory <NUM> includes a base floor <NUM> that supports a toilet <NUM>, cabinets <NUM>, and a sink <NUM> or wash basin. The lavatory <NUM> may be arranged differently than shown. The lavatory <NUM> may include more or less components than shown. The portable sanitizing system <NUM> shown and described with respect to <FIG> may be used to sanitize the various structures, components, and surfaces within the lavatory <NUM>.

<FIG> illustrates a flow chart of a portable sanitizing method, according to an embodiment of the present disclosure. The method includes emitting (<NUM>), from a sanitizing head including an ultraviolet (UV) lamp, UV light having a wavelength between <NUM> - <NUM> onto a surface; and disinfecting (<NUM>) the surface by said emitting (<NUM>). In at least one embodiment, said emitting (<NUM>) includes emitting the UV light having a wavelength of <NUM>.

Optionally, the method include emitting UV light having a wavelength between <NUM> - <NUM>. In at least one embodiment, said emitting include emitting the UV light having a wavelength of <NUM>.

Referring to <FIG>, the portable sanitizing system <NUM> can be used to safely and effectively sanitize high-touch surfaces in the flight deck and internal cabin in a timely and cost-effective manner. UV disinfection allows the internal cabin to be quickly and effectively disinfected, such as between flights. In at least one embodiment, the portable sanitizing system <NUM> is used to augment a cleaning process, such as after manual cleaning.

<FIG> illustrates a schematic block diagram of a UV light pacing system <NUM>, according to an embodiment of the present disclosure. The UV light pacing system <NUM> includes the wand assembly <NUM>, such as part of the UV sanitizing system <NUM> (shown in <FIG>). The wand assembly <NUM> includes a sanitizing head, as described herein. The sanitizing head includes a UV lamp that is configured to emit sanitizing UV light, such as having a wavelength between <NUM>-<NUM> or between <NUM> - <NUM>. The wand assembly <NUM> may include a handle that allows the sanitizing head to move relative to the handle. Optionally, the wand assembly <NUM> may include a sanitizing head and handle that are fixed in relation to one another.

The UV light pacing system <NUM> also includes a user device <NUM>. The user <NUM> is an example of the user device <NUM> shown in <FIG>. In at least one embodiment, the user device <NUM> is a handheld device, such as a smart phone or smart tablet. As another example, the user device <NUM> may be a computer, such as a desktop or laptop computer.

The user device <NUM> includes a user interface <NUM>, a display <NUM>, and a speaker <NUM>, such as a speaker formed on or in, or otherwise coupled to the user device <NUM>, or a headphone(s) coupled to the user device <NUM> via a wired or wireless connection. The user interface <NUM> includes an input device, such as a keyboard, mouse, or the like. The display <NUM> includes a monitor or screen. In at least one embodiment, the user interface <NUM> and the display <NUM> are integrated as a touchscreen interface.

A pacing control unit <NUM> is in communication with the user device <NUM>, such as through one or more wired or wireless connections. The pacing control unit <NUM> shown and described with respect to <FIG> may include the pacing control unit <NUM>, or vice versa. The pacing control unit <NUM> may be in communication with the user device <NUM> through Bluetooth, WiFi, and/or Int0ernet connectivity. The pacing control unit <NUM> may be remotely located from the user device <NUM>. In at least one other embodiment, the user device <NUM> may include the pacing control unit <NUM>. For example, the pacing control unit <NUM> may be contained within a housing of the user device <NUM>.

The pacing control unit <NUM> is also in communication with a pacing database <NUM>, which stores pacing data <NUM>, such as through one or more wired or wireless connections. The pacing database <NUM> shown and described with respect to <FIG> may include the pacing database <NUM>, or vice versa. The pacing control unit <NUM> may be in communication with the pacing database <NUM> through Bluetooth, WiFi, and/or Internet connectivity. The pacing control unit <NUM> may be remotely located from the pacing database <NUM>. In at least one other embodiment, the pacing control unit <NUM> may be co-located with the pacing database <NUM>. For example, the pacing control unit <NUM> and the pacing database <NUM> may be contained within a common computer workstation. As another example, the pacing control unit <NUM> and the pacing database <NUM> may be contained within the user device <NUM>.

The pacing database <NUM> stores pacing data <NUM> regarding one or more items to be disinfected. Pacing information regarding a selected item for disinfection is determined from the pacing data <NUM>. For example, the pacing data <NUM> includes pacing information regarding numerous items to be disinfected. The pacing data <NUM> may include the surface disinfection data <NUM> shown and described with respect to <FIG>, or vice versa. An item to be disinfected is selected through the user device <NUM>, and the pacing control unit <NUM> analyzes the pacing data <NUM> to determine the pacing information for the item, as stored within the pacing data <NUM>.

The pacing data <NUM> may include information regarding ultraviolet (UV) disinfecting information for various items (such as surfaces, components, and the like) and/or pathogens. For example, the pacing data <NUM> includes UV disinfecting dosage for a particular item in relation to a particular pathogen to neutralize.

In operation, a user communicates with the pacing control unit <NUM> through the user device <NUM>. The user may select an item to be disinfected. The pacing control unit <NUM> analyzes the item for disinfection by reviewing the pacing data <NUM> stored in the pacing database <NUM>. The pacing control unit <NUM> then outputs a pacing signal <NUM> that includes pacing information for disinfecting the item to the user device <NUM>. At least a portion of the pacing information may be shown on the display. The pacing information may include a distance to a surface of the item, time for disinfecting, and a rate at which the wand assembly <NUM> should be swept over or otherwise moved in relation to the item. The pacing information may also include a pacing audio signal that is broadcast through the speaker <NUM>. The pacing audio signal, as broadcast by the speaker <NUM>, is an audio cue that allows the user to synchronize the pace of sweeping or otherwise moving the wand assembly <NUM>. In this manner, the pacing control unit <NUM> allows the user to effectively and efficiently disinfect the item.

As described herein, the UV light pacing system <NUM> includes the wand assembly <NUM> including a UV lamp that is configured to emit UV light. The user device <NUM> is configured to allow a user to select an item to be disinfected with the UV light. The pacing control unit <NUM> is in communication with the user device <NUM>. The pacing control unit <NUM> is configured to output the pacing signal <NUM> to the user device <NUM>. The pacing signal <NUM> includes pacing information regarding operation of the wand assembly <NUM> to disinfect the item. For example, the pacing information includes instructions (which are shown on the display <NUM>) for operating the wand assembly <NUM> to disinfect the item. As another example, the pacing information includes one or more audio cues (which are broadcast by the speaker <NUM>) for pacing motion of the wand assembly <NUM> during a disinfection process of the item. In at least one embodiment, the pacing information includes both the instructions, as shown on the display <NUM>, and the audio cues, as broadcast by the speaker <NUM>.

In at least one embodiment, the pacing data <NUM>, which includes the pacing information, is saved in the pacing database <NUM>. The pacing control unit <NUM> is configured to analyze the stored pacing data <NUM>. Further, the pacing data <NUM> can be shared with others at any time. For example, the pacing data <NUM> can be saved with respect to a complete maintenance record and history of UV exposure. The pacing data <NUM> can be reviewed to determine which areas to prioritize for disinfecting. In at least one embodiment, the pacing data <NUM> can be saved along with sensor data for robot or human performance feedback contemporaneously or later. The sensor data can be basic, simple data to reduce data storage requirements, or as complex, such as video data showing a cleaning process. In this manner, the pacing data <NUM> may provide feedback information regarding surfaces that have been cleaned, the effectiveness of such cleaning, and surfaces that need to be cleaned.

<FIG> illustrates a front view of the user device <NUM>, according to an embodiment of the present disclosure. As shown, the user device <NUM> is a handheld smart device (such as a smart phone or smart tablet) that includes a touchscreen interface <NUM> that integrates the user interface <NUM> and the display <NUM>.

Referring to <FIG>, the pacing control unit <NUM> shows a pacing menu screen <NUM> on the user device <NUM>. The pacing menu screen <NUM> allows a user to select a particular pacing mode. For example, the pacing menu screen <NUM> shows a first training option <NUM>, such as for a cabin of a particular type of aircraft, and a disinfecting pacing option <NUM> for the cabin. The pacing menu screen <NUM> may also show a second training option <NUM>, such as for a different area within the aircraft, and a disinfecting pacing option <NUM> for the different area.

The pacing control unit <NUM> provides the training options and disinfecting pacing options to provide the user audio cures to provide a correct of amount of time for exposure of areas within the aircraft to disinfecting UV light, as emitted by the wand assembly <NUM>. As such, the user may pace movement of the wand assembly <NUM> during sanitation, such as via the audio signals broadcast by the pacing control unit <NUM> through the speaker <NUM>, to ensure a correct disinfecting dose of UV light in mJ/cm2.

The pacing information, as included in the pacing signal <NUM> output by the pacing control unit <NUM> to the user device (and as show on the display <NUM> and/or broadcast through the speaker <NUM>) includes a range of the wand assembly <NUM> to a surface to be disinfected, a time of UV illumination of the surface, and a rate of sweep of the wand assembly <NUM> (such as a rate for sweeping the wand assembly <NUM> back and forth over the surface). In at least one embodiment, the rate of sweep is guided by an audio signal broadcast through the speaker <NUM> and/or through visual cues as provided by alterations of the ranging light <NUM> (shown in <FIG>).

The training options may include audio files for a pace of sweeping or otherwise moving the wand assembly <NUM> and detailed instructions to ensure effective and efficient sanitation of items. A user can listen to such audio files to learn the proper sweep rate of the wand assembly <NUM> for a particular item or items. The disinfecting pacing options may include audio files for a pace of sweeping or otherwise moving the wand assembly <NUM> without detailed instructions.

<FIG> illustrates a perspective view of the wand assembly <NUM> in relation to controls <NUM> within a flight deck <NUM>, according to an embodiment of the present disclosure. The controls <NUM> are one example of items to be disinfected by UV light. Other examples include seats, stowage bin assemblies, walls, ceilings, galley carts, counters, cabinets, toilets, sinks, floors, and/or the like. The wand assembly <NUM> is spaced apart from the controls <NUM> a particular range, as noted in the pacing information, and swept in various directions in relation to the controls <NUM>, such as in the directions of arrows A.

Referring to <FIG>, a user selects the item(s) that is to be disinfected via the user device <NUM>. The pacing control unit <NUM> retrieves the pacing data <NUM> regarding the selected item(s) from the pacing database <NUM>. The pacing control unit <NUM> then outputs the pacing signal <NUM> that includes the pacing information for the item(s) (such as the controls <NUM>) to the user device <NUM>. The pacing information, as shown on the display <NUM> and/or broadcast through the speaker <NUM>, assists the user with sweeping the wand assembly <NUM> in relation to the item(s) to effectively and efficiently sanitize and disinfect the item(s).

<FIG> depicts another embodiment of a portable sanitizing system <NUM> worn by an individual or user <NUM>. In the illustrated embodiment, the wand assembly <NUM> lacks a handle coupled to the sanitizing head <NUM>. The wand assembly <NUM> is an example of the wand assembly <NUM> shown in <FIG>. The sanitizing head <NUM> has a handle <NUM> that is an integral feature of the housing <NUM>. For example, the handle <NUM> may be fixed to a rear <NUM> of the shroud <NUM>. The other components of the portable sanitizing system <NUM> shown in <FIG> may be the same or similar as described above. In <FIG>, the cover plate and the bumper are omitted for descriptive purposes.

The range light sources <NUM> are disposed on the housing <NUM> and used to help the user <NUM> maintain a desired range to the target surface of the structure being sanitized. The range light sources <NUM> are examples of the range light sources <NUM> shown and described with respect to <FIG>, for example. The range light sources <NUM> may be light emitting diodes (LEDs). In the illustrated embodiment, the range light sources <NUM> are mounted to the shroud <NUM> at or proximate to the exposed perimeter edge <NUM>. For example, the range light sources <NUM> may contact the interior surface <NUM> of the shroud <NUM>. Alternatively, the range light sources <NUM> may be mounted to other parts of the housing <NUM>, such as the rim and/or the cover plate.

The exposed perimeter edge <NUM> of the shroud <NUM> has a rectangular shape that includes two longer segments <NUM> and two shorter segments <NUM>. As the names imply, the longer segments <NUM> have greater lengths than the shorter segments <NUM>. The longer segments <NUM> extend along both sides of the UV lamp <NUM> such that the UV lamp <NUM> is between the two longer segments <NUM>. A length axis of the UV lamp <NUM> is parallel to the longer segments <NUM>. In the illustrated embodiment, the range light sources <NUM> are located on both of the longer segments <NUM> of the exposed perimeter edge <NUM> and are not located on the shorter segments <NUM>. The multiple range light sources <NUM> are disposed on each longer segment <NUM> to define two parallel lines or rows <NUM> (shown in <FIG>) of light sources <NUM>. In one or more other embodiments, the range light sources <NUM> are also mounted to the shorter segments <NUM> and/or may be mounted at corners between the shorter and longer segments <NUM>, <NUM>.

<FIG> is a front perspective view of the shroud <NUM> and the range light sources <NUM> according to an embodiment. <FIG> is a side perspective view of a portion of the shroud <NUM> and the range light sources <NUM> shown in <FIG>. The shroud <NUM> may be at least partially translucent such that light emitted from the range light sources <NUM> located inside the shroud <NUM> is visible through the thickness of the shroud <NUM>, as shown in <FIG> and <FIG>.

Referring to <FIG>, the range light sources <NUM> are spaced apart from each other along the two parallel rows <NUM>. The range light sources <NUM> may be light emitting diodes (LEDs). The conductive wires and other hardware may be routed along the interior surface <NUM> of the shroud <NUM> and exit through the port <NUM> into the hose <NUM> (shown in <FIG>) to connect to an electrical power source, such as a battery in the backpack assembly. The LEDs may be narrow divergence LEDs that have a divergence no greater than <NUM> degrees. As shown in <FIG>, each range light source <NUM> emits respective light or light beam forward of the shroud <NUM> that illuminates a nearby structure <NUM> to form a respective light marker <NUM> (for example, ranging light <NUM>) on the target surface <NUM> of the structure <NUM>. The light markers <NUM> in <FIG> are approximately circular or ellipsoidal in shape.

Referring to <FIG>, the range light sources <NUM> are arranged in one or more pairs <NUM>. In the illustrated embodiment, there are multiple pairs <NUM>, but only a single pair <NUM> of range light sources <NUM> may be utilized in a basic embodiment. The range light sources <NUM> in each pair <NUM> are oriented relative to each other to emit respective light beams that converge at a predetermined distance in front of the UV lamp <NUM> (shown in <FIG>). For example, the two range light sources <NUM> in each pair <NUM> may be angled towards each other such that an aiming axis <NUM> of the first range light source <NUM> and an aiming axis <NUM> of the second range light source <NUM> in the pair <NUM> intersect at the predetermined distance. The light beams are emitted generally along the respective aiming axes <NUM>, <NUM>. The range light sources <NUM> in the pair <NUM> may be oriented relative to each other at an angle <NUM> (defined between the axes <NUM>, <NUM>) that is in a range between <NUM> degrees and <NUM> degrees. The angle <NUM> may be between <NUM> degrees and <NUM> degrees. The angle <NUM> is determined based on the intended sanitizing application and the known characteristics of the UV light that is emitted. More specifically, the angle <NUM> is determined such that the convergence occurs at a designated distance in front of the UV lamp that corresponds to a desired proximity of the UV lamp to the target surface which yields effective disinfection.

The two range light sources <NUM> in each pair <NUM> may emit different colored light in order to visually distinguish between the light emitted from the different light sources <NUM>. For example, the light marker <NUM> in <FIG> emitted by a first range light source 2130A of a pair <NUM> may be a difference color than the light marker <NUM> emitted by a second range light source 2130B of the pair <NUM>. In an example, the first range light source 2130A may emit blue or green light, and the second range light source 2130B may emit amber, yellow, orange, or red light.

As shown in <FIG> and <FIG>, the two range light sources <NUM> in each pair <NUM> are adjacent to each other and located on a common segment <NUM> of the shroud <NUM>. The two light sources <NUM> in each pair <NUM> may be separated by a discrete spacing distance, such as <NUM> inch, <NUM> inches, <NUM> inches, <NUM> inches, or the like. The spacing distance also affects the relative angle <NUM> at which the light sources <NUM> are oriented in order to provide converging light at a designated distance in front of the UV lamp <NUM>. In the illustrated embodiment, the shroud <NUM> includes three discrete pair <NUM> of range light sources <NUM> on each of the two longer segments <NUM>, for a total of twelve range light sources <NUM>. The number and arrangement of the range light sources <NUM> may be based on the dimensions of the shroud <NUM> such that more or fewer light sources <NUM> can be used in other embodiments. Optionally, the shroud <NUM> may include molded bulges <NUM> along the exterior surface <NUM> of the shroud <NUM> at the locations of the range light sources <NUM>. The bulges <NUM> protrude outward to provide individual spaces for the range light sources <NUM> within the shroud <NUM>.

<FIG> depicts five images <NUM>-<NUM> showing the light markers <NUM> emitted by a pair <NUM> of range light sources <NUM> from different distances relative to a target surface <NUM>. <FIG> shows how the relative positioning of the light markers <NUM> can provide guidance to a user concerning whether the sanitizing head <NUM> is located at a desired distance from the target surface <NUM> to provide effective disinfection. For example, the first image <NUM> shows the light markers <NUM> at a distance of <NUM> inch from the surface <NUM>. The second image <NUM> shows the light markers <NUM> at a distance of <NUM> from the surface <NUM>. The third image <NUM> shows the light markers <NUM> at a distance of <NUM> from the surface <NUM>. The fourth image <NUM> shows the light markers <NUM> at a distance of <NUM> from the surface <NUM>, and the fifth image <NUM> shows the light markers <NUM> at a distance of <NUM> from the surface <NUM>. The distances may be refer to the distance between the UV lamp <NUM> and the area of the target surface <NUM> that is illuminated by the UV light emitted by the UV lamp <NUM>. The light markers <NUM> include a first light marker 2176A and a second light marker 2176B that have different colors and are emitted by different range light sources <NUM> in a single pair <NUM>. For example, the first light marker 2176A may be amber, and the second light marker 2176B may be blue.

In the illustrated embodiment, the two range light sources <NUM> in the pair <NUM> are intentionally oriented for the light beams emitted from the light sources to converge at a distance of <NUM> That convergence distance may be determined based on characteristics of the UV light and/or disinfecting properties. For example, the convergence distance may represent a distance in which the UV light provides desirable sanitization to kill or neutralize pathogens. When the sanitizing head <NUM> is held too close to the target surface <NUM>, such as at <NUM> as shown in image <NUM>, the first and second markers 2176A, 2176B are generally discrete with little or no overlap. The lack of overlap is visible to the user which indicates that the sanitizing head is not in correct position. The user moves the sanitizing head <NUM> closer or farther from the surface <NUM> to cause the markers 2176A, 2176B to move together. In this case, moving the sanitizing head <NUM> farther away to <NUM> as shown in image <NUM> causes the markers 2176A, 2176B to partially converge and define an overlap region <NUM>. The overlap region <NUM> is the area that is concurrently illuminated by both of the range image sources <NUM> in the pair <NUM>. The overlap region <NUM> may have a different color than the individual markers 2176A, 2176B, such as a lighter or whiter color. As the sanitizing head <NUM> is moved even farther away from the surface <NUM>, the size of the overlap region <NUM> increases until the distance reaches <NUM> as shown in image <NUM>. In image <NUM>, the two markers 2176A, 2176B almost completely overlap such that there is essentially only one light marker now instead of two. This large overlap region <NUM> (e.g., and the singular marker) indicate to the user that the sanitizing head <NUM> is positioned at a desirable height or distance from the target surface <NUM> to provide effective disinfecting.

Additional movement of the sanitizing head <NUM> away from the target surface <NUM> causes the overlap region <NUM> to shrink as the discrete amber and blue light markers 2176A, 2176B become visible and move apart from each other, which is shown in images <NUM> and <NUM>. Although the visual cues shown in images <NUM> and <NUM> look similar, the user can quickly determine if the sanitizing head <NUM> should be moved closer or farther from the target surface <NUM> to achieve the desired positioning by moving the sanitizing head <NUM> closer or farther from the surface <NUM> and observing whether the individual markers 2176A, 2176B move closer together or farther away. If the markers 2176A, 2176B diverge even more, then that indicates that the sanitizing head <NUM> should be moved in the opposite direction.

<FIG> is an end view of the sanitizing head <NUM> showing the light markers <NUM> on the target surface <NUM> that is being sanitized. <FIG> is a side perspective view showing the sanitizing head <NUM> used to sanitize and disinfect an instrument panel <NUM>. The light markers <NUM> illuminate the target surface <NUM> in two parallel rows <NUM>, <NUM>. The two rows <NUM>, <NUM> can provide a visual indication to the user of the area that is being disinfected. For example, the intervening area <NUM> between the two rows <NUM>, <NUM> is illuminated with UV light from the UV lamp <NUM>. In addition to provided range guidance in the depth dimension, by bordering or framing the UV illuminated area <NUM>, the range light sources <NUM> help the user determine which section of the target surface <NUM> is receiving a dose of UV radiation (e.g., is being disinfected) at any given time. The user may not be able to see the UV light itself.

<FIG> is a diagram showing multiple relative angles between the two range light sources <NUM> in a pair <NUM> according to an embodiment. The LEDs used for the range light sources <NUM> may have a narrow divergence of <NUM> to <NUM> degrees. The relative angle 2184A, 2184B in the housing <NUM> is predetermined based on the type of UV lamp <NUM> used and the intended use of the disinfecting system. For example, when disinfecting flat surfaces, such as a cabin area within a vehicle, a desirable distance between the <NUM> UV lamp <NUM> and the target surface may be between <NUM> and <NUM> inches, inclusive of the end points. In an embodiment, the desirable distance may be approximately <NUM> inches. Based on a predetermined separation distance between each other, the range light sources <NUM> in the pair <NUM> may be set at an angle of approximately <NUM> degrees from one another. At this angle, the light beams emitted from the two light sources <NUM> will converge at a distance in front of the sanitizing head <NUM> that matches the desired distance, such as <NUM>. Therefore, when the markers converge at the overlap region as shown in image <NUM> of <FIG>, that indicates to the user that the sanitizing head <NUM> is at the correct distance <NUM> from the target surface for the intended application.

When disinfecting surfaces with protrusions, such as a flight deck of an aircraft, a desirable distance between the <NUM> UV lamp <NUM> and the target surface may be between <NUM> and <NUM>, inclusive of the end points. The desirable distance <NUM> may be approximately <NUM> (e.g., within <NUM>%, <NUM>%, or <NUM>% of <NUM> inches). At the same predetermined separation distance, the range light sources <NUM> in the pair <NUM> may be set at an angle of approximately <NUM> degrees from one another. At this angle, the light beams emitted from the two light sources <NUM> will converge at a distance in front of the sanitizing head <NUM> that matches the desired distance, such as <NUM> inches. Therefore, when the markers converge at the overlap region as shown in image <NUM> of <FIG>, that indicates to the user that the sanitizing head <NUM> is at the correct distance <NUM> from the target surface for the intended application.

<FIG> is a diagram showing three range light sources <NUM> according to an alternative embodiment. The sanitizing head <NUM> may include at least one pair of range light sources <NUM> arranged in a first subset <NUM> and at least one pair of range light sources <NUM> arranged in a second subset <NUM>. Each of the subsets2 <NUM>, <NUM> may include one pair or multiple pairs of range light sources <NUM>. The pairs in the first subset <NUM> are oriented at a different relative angle than the pairs in the second subset <NUM>. For example, the pairs in the first subset <NUM> may have a first relative angle 2184A that is approximately <NUM> degrees, and the pairs in the second subset <NUM> may have a second relative angle 2184B that is approximately <NUM> degrees. The range light sources <NUM> may be selectively controlled via the user or an automated control system to operate the first subset <NUM> without the second subset <NUM> for a first intended application and to operate the second subset <NUM> without the first subset <NUM> for a second intended application. The first intended application could be to clean a cabin area within a vehicle, and the second intended application could be to clean a flight deck of an aircraft.

Optionally, at least one range light source <NUM> can define part of two different pairs. For example, the illustrated diagram shows a first range light source 2130A, a second range light source 2130B, and a third range light source 2130C. The second and third range light sources 2130B, 2130C may emit the same colored light, such as blue light. The first range light source 2130A defines a pair in the first subset <NUM> with the second range light source 2130B. The first range light source 2130A defines a pair in the second subset <NUM> with the third range light source 2130C. The third range light source 2130C represents one of an alternate set of LEDs along one side of the housing <NUM>. The second and third range light sources 2130B, 2130C are disposed on the same side of the housing <NUM> but set at different angles to allow the user to switch the optimum disinfecting distance based on the intended use. A switch can be installed to change the focus from <NUM> inches to <NUM> inches depending upon the desired range (switching from blue LED1 to blue LED2) without changing the red LED 2130A.

As described herein, embodiments of the present disclosure provide systems and methods for efficiently sterilizing surfaces, such as within an internal cabin of a vehicle. Further, embodiments of the present disclosure provide mobile, compact, easy-to-use, consistent, reliable, and safe systems and methods for using UV light to sterilize surfaces within an internal cabin.

Also provided are the following illustrative, non-exhaustive examples of further non-claimed embodiments that are compatible with the claimed subject matter:
The claimed system may further comprise a navigation sub-system configured to track a location of the assembly within an environment. The system may further comprise a pacing control unit in communication with the assembly and the navigation sub-system, wherein the pacing control unit, based on the location of the assembly in relation to the component within the environment, automatically determines surface disinfection data for the component. The system may further comprise an augmented reality sub-system in communication with the assembly and a pacing control unit, wherein the pacing control unit automatically shows one or both of surface disinfection data regarding the component or one or more visual indications for moving the assembly to disinfect various surfaces on a portion of the augmented reality sub-system as an operator moves through an environment.

The assembly may further comprise a cover that covers the UV lamp, wherein the cover is one of a wire mesh screen or a stamped or laser cut metal sheet with formed apertures.

While various spatial and directional terms, such as top, bottom, lower, mid, lateral, horizontal, vertical, front and the like can be used to describe embodiments of the present disclosure, it is understood that such terms are merely used with respect to the orientations shown in the drawings.

Claim 1:
An ultraviolet (UV) light system for pace control of an assembly, comprising:
said assembly including a UV lamp (<NUM>) configured to emit UV light (<NUM>) to disinfect a component (<NUM>); and
one or more range light sources (<NUM>) configured to emit ranging light (<NUM>) onto a surface of the component (<NUM>), such that the one or more range light sources (<NUM>) are configured to emit the ranging light (<NUM>) to pulse at a particular frequency to provide a visual cue for a user to guide a pace speed motion of the assembly in relation to the component (<NUM>).