KR20230116465A - Smart UV Sterilizer - Google Patents

Abstract

The present invention relates to a smart ultraviolet sterilization device capable of improving sterilization efficiency by making the amount of ultraviolet radiation reaching a floor and a wall of a room uniform.
The smart ultraviolet sterilization device according to an embodiment of the present invention,
a chamber having an ultraviolet light source formed therein and radiating ultraviolet rays emitted from the ultraviolet light source into an indoor space; It is formed on at least one side of the chamber and rotationally drives the chamber so that ultraviolet rays are repeatedly irradiated to the floor and wall surfaces, the distance from the ultraviolet light source to the floor surface and wall surface of the indoor space is measured, and the measured distance is and a drive unit for adjusting the rotational speed of the chamber or the intensity of the ultraviolet light source so that the irradiation amount of ultraviolet light is uniform on the bottom surface and the wall surface.

Description

Smart UV Sterilizer {Smart UV Sterilizer}

The present invention relates to an apparatus for sterilizing an indoor space with ultraviolet rays, and more specifically, by making the amount of ultraviolet irradiation reaching the floor and walls of the room as uniform as possible, thereby satisfying the minimum amount of ultraviolet irradiation required for a specific microorganism to be removed. It relates to a smart ultraviolet sterilization device that can improve sterilization efficiency at the same time as sterilization.

SARS in 2003, avian flu in 2005 (AVIAN H5N1 INFLUENZA VIRUS), swine flu in 2009 (SWINE FLU H1N1), Ebola virus in 2014, Middle East Respiratory Syndrome (MERS) in 2015, and COVID-19 in 2020. At intervals of 24 hours, the world began to recognize the problems of personal hygiene management and disinfection and quarantine with pathogens that host humans.

For quarantine, disinfection must be carried out manually with approved disinfectants and personnel, but there is a limitation that prior training must be conducted for quarantine workers for proper use of equipment in order to maintain a disinfection effect above a certain level.

Although the use of a disinfectant such as ethanol is accurate to effectively disinfect these pathogens, it has limitations due to the use of manpower to disinfect a wide area, and also has a problem of experiencing discomfort due to the smell caused by the use of the disinfectant. Ultraviolet disinfection has the disinfection principle of the sun as it is, and although it is a nature-friendly disinfection technology, it has a problem that there is no residual to disinfection. In addition, the U.S. EPA stipulates that 200 to 300 nm is the most effective in the UV range to effectively kill pathogens. These wavelengths of 200 to 300 nm are effective against pathogens, but are harmful to the human body and can cause skin cancer or blindness.

Korean Patent Laid-open Publication No. 10-2014-0051219 entitled "Ultraviolet discharge lamp device having one or more reflectors and system for determining operation parameters and disinfection schedule of sterilization device as a technology for use in hospitals and other places where professional quarantine is required. " etc.

In order to prevent human exposure to ultraviolet rays, the system is installed in an unoccupied space, and then a person comes out and operates the system in an empty indoor space to carry out disinfection work. It is a product that applies robot technology, and has the disadvantage of being expensive equipment that can only be used in specialized medical institutions.

Unlike the Middle East Respiratory Syndrome in 2015, the COVID-19 infectious disease in 2020 is not transmitted in a hospital, but infection in the workplace or infection through the use of multi-use facilities is also a problem.

Republic of Korea Patent Publication No. 10-2014-0051219

An object of the present invention is to provide a smart ultraviolet sterilization device capable of improving sterilization efficiency by making the amount of ultraviolet radiation reaching the floor and wall of the room uniform.

The smart ultraviolet sterilization device according to an embodiment of the present invention,

a chamber having an ultraviolet light source formed therein and radiating ultraviolet rays emitted from the ultraviolet light source into an indoor space; It is formed on at least one side of the chamber and rotationally drives the chamber so that ultraviolet rays are repeatedly irradiated to the floor and wall surfaces, the distance from the ultraviolet light source to the floor surface and wall surface of the indoor space is measured, and the measured distance is Based on the base, a driving unit for adjusting the rotational speed of the chamber or the intensity of the ultraviolet light source is included so that the ultraviolet irradiation amount is uniform on the bottom surface and the wall surface.

In the smart ultraviolet sterilization device according to an embodiment of the present invention, the driving unit includes a driving motor for rotating the chamber, a vertical distance from the ultraviolet light source to the floor of the indoor space and a distance from the ultraviolet light source to the indoor space. A sensor module that measures the horizontal distance to a wall, and a trigonometric function is applied to the vertical and horizontal distances to calculate a distal point, which is a point in the indoor space farthest from the ultraviolet light source. It includes a control module that

In the smart ultraviolet sterilizer according to an embodiment of the present invention, the control module controls the driving motor so that the rotational speed of the chamber is reduced in a section in which the distance the ultraviolet rays reach from the ultraviolet light source increases, The drive motor may be controlled to increase the rotational speed of the chamber in a section in which the distance to which the UV rays reach from the UV light source decreases.

In the smart ultraviolet sterilization device according to an embodiment of the present invention, the driving unit further includes a power control module for adjusting the intensity of the ultraviolet light source by controlling power applied to the ultraviolet light source, and the control module comprises the The power control module is controlled to increase the intensity of the ultraviolet light source in a section where the distance the ultraviolet rays reach from the ultraviolet light source increases, and the intensity of the ultraviolet light source in a section where the distance the ultraviolet rays reach from the ultraviolet light source decreases. The power control module may be controlled so that

The smart ultraviolet sterilization device according to an embodiment of the present invention further includes a communication module that performs wireless communication with an external management server, wherein the management server updates the amount of ultraviolet light irradiation required for sterilization according to a prevalent pathogen, The information is transmitted to the communication module, and the control module may adjust the rotational speed of the chamber or the intensity of the ultraviolet light source based on the updated ultraviolet radiation amount information.

In the smart ultraviolet sterilization device according to an embodiment of the present invention, the control module calculates the corrected ultraviolet radiation amount by reflecting the change in ultraviolet light intensity according to the use time of the ultraviolet light source, and rotates the chamber based on the corrected ultraviolet radiation amount. The speed or intensity of the ultraviolet light source may be adjusted.

The smart ultraviolet sterilization device according to an embodiment of the present invention may further include a bracket part for fastening and fixing the chamber and the driving part, and a movable part connected to the bracket part and movable.

In the smart ultraviolet sterilization device according to an embodiment of the present invention, when it is detected that a person or living creature is present by the occupancy sensor, the chamber faces upward to sterilize the upper part of the room, and the occupancy sensor When it is detected that no organisms exist, the chamber may be sterilized while rotating by the driving unit.

Other specific details of implementations according to various aspects of the present invention are included in the detailed description below.

According to an embodiment of the present invention, the sterilization efficiency can be improved by making the amount of UV irradiation reaching the floor and the wall of the room uniform.

1 is a side view showing a smart ultraviolet sterilization device according to an embodiment of the present invention.
2 is a perspective view showing a smart ultraviolet sterilization device according to an embodiment of the present invention.
3 is a plan view showing a smart ultraviolet sterilization device according to an embodiment of the present invention.
4 and 5 are diagrams showing the operation process of the smart ultraviolet sterilization device according to an embodiment of the present invention.
6 is a block diagram showing a drive unit of a smart ultraviolet sterilizer according to an embodiment of the present invention.
7 is a graph showing changes in UV intensity according to distance.
8 is a schematic diagram for explaining a process of calculating a distal point, which is a point in an indoor space farthest from an ultraviolet light source.
9 is a graph showing the rotational speed for each angle for explaining the control of the rotational speed of the chamber by the driving unit.
FIG. 10 is a graph illustrating the intensity of ultraviolet light for each angle for explaining the adjustment of the intensity of the ultraviolet light source in the driving unit.
11 is a diagram for explaining a process of calculating an ultraviolet irradiation intensity on a corresponding inclined surface when ultraviolet rays are irradiated onto the inclined surface.
12 is a graph showing changes in ultraviolet light intensity according to lamp usage time.
13 is a diagram illustrating a computing device according to an embodiment of the present invention.

Since the present invention can apply various transformations and have various embodiments, specific embodiments will be exemplified and described in detail in the detailed description. However, it should be understood that this is not intended to limit the present invention to specific embodiments, and includes all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as 'include' or 'having' are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

The reason why the effectiveness of ultraviolet rays in existing air sterilization devices is low is due to the problem of the amount of ultraviolet rays. Since “ultraviolet irradiation amount = ultraviolet light intensity Х contact time”, sufficient contact time or sufficient ultraviolet intensity must be secured in order to secure an appropriate amount of ultraviolet irradiation.

On the other hand, the wavelength involved in sterilization is a short wavelength of UV-C, and the UV-C wavelength range is about 100 to 280 nm, and it is known that the sterilization power is the strongest when it is about 255 to 265 nm. More than 95% of the UV-C wavelength of 254 nm is absorbed by most materials, such as glass windows, mirrors, wood, paint, vinyl wallpaper, ceramic tiles, natural or synthetic fibers, and plastic materials.

The present invention is an indoor sterilization device using ultraviolet rays that can be installed in operating rooms, hospital rooms, offices, homes, multi-use facilities, etc. In order to irradiate ultraviolet rays to a large volume of air, the air in the upper part of the room or adjacent to the wall is sterilized so that the human body is not exposed to ultraviolet rays while the person is in the room, and after the person leaves the room, the air in the adjacent space is sterilized. Sterilize the entire indoor space, such as the floor, walls, surfaces and air of objects located indoors. do.

Hereinafter, a smart ultraviolet sterilization device according to an embodiment of the present invention will be described with reference to the drawings.

Figure 1 is a side view showing a smart ultraviolet sterilization device according to an embodiment of the present invention, Figure 2 is a perspective view showing a smart ultraviolet sterilization device according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention A plan view showing a smart ultraviolet sterilizer according to the example.

1 to 3, the smart ultraviolet sterilization device according to an embodiment of the present invention includes a chamber 100, a driving unit 200, and a bracket unit 300. And, optionally, a moving unit 400 may be further included.

The chamber 100 radiates ultraviolet light emitted from an ultraviolet light source into an indoor space. The chamber 100 is rotated and driven at a predetermined angle by the driving unit 200 so that ultraviolet rays are repeatedly irradiated to the floor and walls of the indoor space.

A drive unit 200 is formed on one side of the chamber 100, and the chamber 100 and the drive unit 200 are fastened to the bracket body 310. The bracket body 310 is installed and fixed on the wall of an indoor space, or is moved from one indoor space to another indoor space by being fastened to the movable part 400 through the bracket support part 320 and the height adjusting part 330, etc. It can be.

The chamber 100 may include an ultraviolet light source 110 , a balanced light forming lens 120 , an opening 130 , and a scattered light absorbing member 140 .

The ultraviolet light source 110 may be installed inside a quartz tube that transmits ultraviolet rays. The ultraviolet light emitted from the ultraviolet light source 110 in a radial direction is converted into parallel light ultraviolet light by the balanced light forming lens 120 and irradiated through the opening 130 formed on one side of the chamber 100 . An irradiation direction of ultraviolet rays emitted from the chamber 100 may be turned by a driving motor 230 provided in a driving unit 200 formed on at least one side of the chamber 100 .

The balanced light forming lens 120 is formed in a direction toward the opening of the ultraviolet light source 110 (hereinafter, also referred to as 'front'). The balanced light forming lens 120 may have a predetermined curvature and at least one of one surface and the other surface may be a convex lens.

According to the refractive index of the balanced light forming lens 120, some of the ultraviolet light emitted forward from the ultraviolet light source 110 and passing through the balanced light forming lens 120 is converted into parallel light ultraviolet light and the remaining part is converted into non-balanced light ultraviolet light. do.

The balanced light ultraviolet light is radiated into the room through the opening 130 , and the non-balanced light ultraviolet light is absorbed by the scattered light absorbing member 140 .

The driving unit 200 is formed on at least one side of the chamber 100 and rotationally drives the chamber 100 so that ultraviolet rays are repeatedly irradiated to the floor and walls of the indoor space. In addition, the driving unit 200 measures the distance from the UV light source to the floor and the wall of the indoor space, and based on the measured distance, the rotation speed of the chamber 100 or the ultraviolet ray so that the UV irradiation amount is uniform on the floor and the wall. The intensity of the light source 110 is adjusted. The driving unit 200 will be described later with reference to FIGS. 6 to 11 .

The bracket unit 300 includes a bracket body 310 . The bracket body 310 fastens and fixes the chamber 100 and the driving unit 200 . The bracket body 310 may be a fixed type that can be installed on a wall surface of an indoor space by a fastening means such as a bolt.

Alternatively, the bracket unit 300 may further include a bracket support unit 320 and a height adjustment unit 330, and the bracket body 310 is a moving unit through the bracket support unit 320 and the height adjustment unit 330. It may be a movable type that can move by being fastened to (400).

The bracket support portion 320 is formed of a plate member formed to a predetermined length and is connected to the bracket body 310 .

The height adjusting unit 330 is formed in a structure capable of sliding up and down on the rear surface of the bracket support unit 320, and its lower end is fixed to the base 410 of the moving unit 400. Wheels 420 are formed on the base 410 so that the smart ultraviolet sterilization device of the present invention can be moved.

4 and 5 are views showing the operation process of the smart ultraviolet sterilization device according to an embodiment of the present invention.

인 경우이다.Referring to FIG. 4 , the smart ultraviolet sterilization apparatus directs the chamber 100 upward to sterilize the upper part of the room when it is detected by the occupancy sensor that a person or living creature is present. The sterilized upper air moves to the lower indoor area through convection of the indoor air, and the lower indoor air moves to the upper indoor area and is sterilized. Here, “upper part” means a case above the horizontal distance line of the chamber 100 (in FIG. 8, the line at θ = 90°). That is, the irradiation direction of the ultraviolet light source 110 is 90 ° <

is the case

Referring to FIG. 5, in the smart ultraviolet sterilizer, when it is detected that no human or living organism is present by the occupancy sensor, the driving motor 230 operates and the chamber 100 rotates in a predetermined angular range by the driving motor. Disinfect indoor air evenly.

Next, the driving unit 200 will be described with reference to FIGS. 6 to 11 .

6 is a block diagram showing a driving unit of a smart ultraviolet sterilization device according to an embodiment of the present invention, FIG. 7 is a graph showing a change in ultraviolet intensity according to distance, and FIG. 8 is an indoor space farthest from an ultraviolet light source. It is a schematic diagram for explaining the process of calculating the distal point, which is a point of , and FIG. 9 is a graph showing the rotation speed for each angle for explaining the control of the rotation speed of the chamber by the driving unit, and FIG. 10 is a graph showing the rotation speed of the driving unit It is a graph showing the intensity of ultraviolet rays for each angle to explain adjusting the intensity of a light source, and FIG. 11 is a diagram for explaining the calculation of the intensity of ultraviolet radiation on the inclined surface when ultraviolet rays are irradiated on the inclined surface.

The driving unit 200 is formed on at least one side of the chamber 100 and rotates the chamber 100 so that ultraviolet rays are repeatedly irradiated to the floor and wall surfaces, but from the ultraviolet light source 110 to the floor and wall surfaces of the indoor space. The distance is measured, and based on the measured distance, the rotation speed of the chamber 100 or the intensity of the UV light source 110 is adjusted so that the UV irradiation amount is uniform on the floor and the wall.

To this end, as shown in FIG. 6 , the driving unit 200 may include a sensor module 210, a control module 220, a driving motor 230, a power control module 240, a communication module 250, and the like. can

The sensor module 210 includes a distance measuring sensor. The distance measuring sensor may be an ultrasonic sensor using ultrasonic waves or an infrared sensor using infrared rays. Of course, it is not limited thereto. The distance measurement sensor measures the vertical distance from the ultraviolet light source 110 to the floor of the indoor space (see y in FIG. 8) and the horizontal distance from the ultraviolet light source 110 to the wall of the indoor space (see x in FIG. 8) do.

Also, the sensor module 210 may further include an occupancy sensor. For example, the occupancy sensor may be at least one of a PIR sensor, a microwave sensor, an ultrasonic sensor, and a sound sensor. The occupancy sensor can urgently turn off the UV light source 110 so that there is no damage to the human body or living organism through detection of heat, motion or entry of a person or living organism using the sensor.

Meanwhile, as shown in FIG. 7 , the intensity of ultraviolet light irradiated from the ultraviolet light source 110 decreases as the distance from the ultraviolet light source 110 increases due to ultraviolet scattering or the like.

Therefore, even in the same indoor space, since the amount of UV irradiation reached varies depending on the distance from the UV light source 110, uniform sterilization treatment cannot be performed. That is, even when the intensity of the UV light source 110 is set to sterilize specific pathogens (bacteria, viruses, etc.), an area far from the UV light source 110 may not be sterilized. In addition, as the area to which the ultraviolet rays are irradiated varies according to the incident angle of the ultraviolet rays, the density of the ultraviolet rays also varies, so that the amount of ultraviolet irradiation may vary.

In order to solve this problem, the control module 220 adjusts the rotational speed of the chamber 100 or the intensity of the UV light source 110 so that the UV irradiation amount is uniform on the bottom surface and the wall surface.

In detail, the control module 220 applies a trigonometric function to the vertical distance (y) and the horizontal distance (x) to apply a trigonometric function to the farthest point in the indoor space from the UV light source 110 (distal point). point, see DP in FIG. 8) is calculated.

Referring to FIG. 8 , the irradiation direction (θ), the vertical distance (y), and the horizontal distance (x) of the ultraviolet light source 110 have a relationship as shown in Equation (1) below.

Equation (1): x tan(90- θ) = y/x

If equation (1) is rearranged for θ, θ = 90° - tan ^-1 (y/x). And, the distance from the ultraviolet light source 110 to the distal point DP is 1 _D = (x ² + y ² ) ^½ .

Accordingly, the control module 220 can calculate the irradiation direction θ _D and the irradiation distance to the distal point DP.

On the other hand, since the UV irradiation amount is calculated by multiplying the UV intensity by the contact time (ie, "UV irradiation amount = UV intensity Х contact time"), when the intensity of the UV light source 110 is constant, the distance from the UV light source 110 is close The surface contact time can be made small, and if the distance is long, the contact time can be increased to make the UV irradiation amount uniform.

Alternatively, when the rotational speed of the chamber 100 is constant, the intensity of the light source may be reduced when the distance from the ultraviolet light source 110 is short, and the intensity of the light source may be increased when the distance is long, so that the amount of ultraviolet light irradiation is uniform.

That is, the control module 220 adjusts the rotational speed of the chamber 100 having the UV light source 110 therein or the intensity of the UV light source 110 according to the distance from the UV light source 110 so that the UV irradiation amount is uniform. can make it

Here, "uniform" means that the amount of ultraviolet radiation irradiated to the floor, wall surface, etc. of the indoor space is within a certain range capable of sterilizing, and does not necessarily mean that the amount of irradiation is specific.

The driving motor 230 is formed on at least one side of the chamber 100 and rotates the chamber 100 in a circumferential direction at a predetermined angle according to a control command of the control module 220 . The driving motor may be, for example, a synchronous motor capable of low-speed driving, a worm gear motor, an encoder motor capable of recognizing an angle, a stepping motor, or a servo motor, but is not necessarily limited thereto.

Referring to FIGS. 8 and 9 , the control of the rotational speed of the chamber 100 by the driving unit 200 will be described. In this case, the intensity of the ultraviolet light source 110 is constant.

Referring to FIG. 8, the smart ultraviolet sterilization device of the present invention is disposed close to any one wall in an indoor space. In FIG. 8, the smart ultraviolet sterilization device is shown replacing the ultraviolet light source 110.

The shortest distance from the ultraviolet light source 110 to the floor is the vertical distance y, and the shortest distance to the wall is the horizontal distance x. The vertical distance and the horizontal distance are distances when the ultraviolet light source 110 is perpendicularly incident to the incident surface. (i.e. the angle of incidence is 0°)

The normal line of the bottom surface on which the UV light source 110 is vertically incident is used as the reference line for rotation of the UV light source 110 . That is, the irradiation direction (rotation angle) θ at this time is 0°. In addition, the irradiation direction when the ultraviolet light source 110 faces the distal point DP is θ _D. The incident angle at this time is the maximum incident angle.

While the UV light source 110 rotates counterclockwise and the irradiation direction increases from θ = 0 ° to θ = θ _D , the distance l ₁ from the UV light source 110 to the bottom surface gradually increases, and accordingly, the ultraviolet intensity gradually decreases. The control module 220 reduces the rotational speed of the chamber 100 as shown in FIG. 9 to increase the contact time between the ultraviolet rays and the bottom surface. That is, during the C1 section in which the distance increases, the control module 220 controls the operation of the driving motor 230 such that the rotational speed of the chamber 100 becomes ω _max -> ω _min .

Subsequently, while the irradiation direction of the ultraviolet light source 110 increases from θ = θ _D to θ = 90 °, the distance l ₂ from the ultraviolet light source 110 to the wall surface gradually decreases, and accordingly, the ultraviolet light intensity gradually increases. will do The control module 220 increases the rotational speed of the chamber 100 in order to reduce the contact time between the ultraviolet rays and the wall surface. That is, during section C2 in which the distance decreases, the control module 220 controls the operation of the driving motor 230 such that the rotational speed of the chamber 100 becomes ω _min -> ω ₁ . (ω _min < ω _{1 <} ω _max )

Thereafter, the control module 220 switches the rotation direction of the chamber 100 in the opposite direction (clockwise direction), and irradiates ultraviolet rays from θ = 90 ° to θ = 0 °. At this time, the control module 220 controls the operation of the driving motor 230 contrary to the above process. That is, since section C2 is a distance increasing section and section C1 is a distance decreasing section, the control module 220 causes the rotation speed of the chamber 100 to decrease during section C2 and the rotation speed of the chamber 100 decreases during section C1. The operation of the driving motor 230 is controlled to increase.

The power control module 240 controls the power applied to the ultraviolet light source 110 according to the control command of the control module 220 to adjust the intensity of the ultraviolet light source 110 . Power applied to the ultraviolet light source 110 may be voltage or current.

Referring to FIG. 10 , controlling the intensity of the ultraviolet light source 110 in the driving unit 200 will be described. In this case, the rotational speed of the chamber 100 is constant.

While the UV light source 110 rotates counterclockwise and the irradiation direction increases from θ = 0 ° to θ = θ _D , the distance l ₁ from the UV light source 110 to the bottom surface gradually increases, and accordingly, the ultraviolet intensity gradually decreases. Accordingly, the control module 220 controls the power control module 240 as shown in FIG. 10 so that the intensity of the ultraviolet light source 110 is increased. That is, during the C1 section in which the distance increases, the control module 220 controls the operation of the power control module 240 so that the applied power (voltage or current) becomes P _min -> P _max .

Subsequently, while the irradiation direction of the ultraviolet light source 110 increases from θ = θ _D to θ = 90 °, the distance l ₂ from the ultraviolet light source 110 to the wall surface gradually decreases, and accordingly, the ultraviolet light intensity gradually increases. will do Accordingly, the control module 220 controls the power control module 240 to decrease the intensity of the ultraviolet light source 110 . That is, during section C2 in which the distance decreases, the control module 220 controls the operation of the power control module 240 so that the applied power becomes P _max -> P ₁ . (P _min < P ₁ < P _max )

Thereafter, the control module 220 switches the rotation direction of the chamber 100 in the opposite direction (clockwise direction), and irradiates ultraviolet rays from θ = 90 ° to θ = 0 °. At this time, the control module 220 controls the operation of the power control module 240 contrary to the above process. That is, since section C2 is a distance increasing section and section C1 is a distance decreasing section, the control module 220 increases the intensity of the ultraviolet light source 110 during section C2 and increases the intensity of the ultraviolet light source 110 during section C1. The operation of the power control module 240 is controlled to decrease.

Next, with reference to FIG. 11, when ultraviolet rays are irradiated on the inclined surface, a process of calculating the intensity of ultraviolet irradiation on the inclined surface will be described.

As shown in FIG. 11, even if the distance is the same, the irradiation area is changed by the tilted angle. As a result, even if the same amount of UV energy arrives, the UV intensity (mW/cm^2) changes.

In Fig. 11, θ = θ', and the irradiation area A1 = A/cosθ. In this way, even if it is not the floor surface wall surface, it is possible to calculate the ultraviolet irradiation intensity (mW/cm^2) for each point in the indoor space, and derive a function based on this and mount it in the control module 220, thereby targeting microorganisms. It is possible to maintain the minimum amount of UV irradiation for death.

The communication module 250 includes a wireless communication chip such as a mobile communication network, Wifi, BLE, Z-Wave, or Zigbee. The smart ultraviolet sterilizer of the present invention can communicate with an external remote controller through the communication module 250, set the amount of ultraviolet radiation by remote control through the remote controller, turn on/off the ultraviolet light source 110 or the driving motor 230 Off control is possible. The remote controller may be installed in the form of an application on a desktop computer, a laptop computer, or a mobile terminal possessed by a user. In addition, the remote controller may be a management server on the seller's side that manufactures and sells the smart ultraviolet sterilizer of the present invention.

Depending on the pathogen, the amount of UV irradiation required varies. For example, for 90% removal, Agrobacterium tumefaciens requires 4.2 mJ/cm ² , Bacillus anthracis 4.5 mJ/cm ² , Proteus vulgaris 3.0 mJ/cm ² , and Influenza 3.4 mJ/cm ² . .

The management server updates the amount of ultraviolet irradiation required for sterilization according to the prevalent pathogen and transmits it to the communication module 250 of the smart ultraviolet sterilizer. The communication module 250 transmits the updated information on the amount of ultraviolet radiation to the control module 240, and the control module 240 determines the intensity of the light source 110 and the amount of light emitted from the light source 110 based on the information about the amount of ultraviolet radiation. The rotational speed of the chamber 100 or the change in intensity of the ultraviolet light source 110 according to the distance is controlled.

12 is a graph showing changes in ultraviolet light intensity according to lamp usage time.

Referring to FIG. 12 , it can be seen that even when the same power is applied, the output value gradually decreases according to the usage time of the lamp. In the example of FIG. 12 , when used for 10000 hours, it can be seen that the output of the lamp is reduced by approximately 0.1 (ie, 10%) compared to the first use.

The control module 220 calculates the corrected UV irradiation amount by reflecting the UV intensity variation (output reduction value) according to the lamp use time, and adjusts the rotation speed of the chamber or the intensity of the UV light source based on the corrected UV irradiation amount. .

13 is a diagram illustrating a computing device according to an embodiment of the present invention. The computing device TN100 of FIG. 13 may be a hardware configuration of the driving unit 200 of the smart ultraviolet sterilizer described herein.

In the embodiment of FIG. 13 , the computing device TN100 may include at least one processor TN110, a transceiver TN120, and a memory TN130. In addition, the computing device TN100 may further include a storage device TN140, an input interface device TN150, and an output interface device TN160. Elements included in the computing device TN100 may communicate with each other by being connected by a bus TN170.

The processor TN110 may execute program commands stored in at least one of the memory TN130 and the storage device TN140. The processor TN110 may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed. Processor TN110 may be configured to implement procedures, functions, methods, and the like described in relation to embodiments of the present invention. The processor TN110 may control each component of the computing device TN100.

Each of the memory TN130 and the storage device TN140 may store various information related to the operation of the processor TN110. Each of the memory TN130 and the storage device TN140 may include at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory TN130 may include at least one of read only memory (ROM) and random access memory (RAM).

The transmitting/receiving device TN120 may transmit or receive a wired signal or a wireless signal. The transmitting/receiving device TN120 may perform communication by being connected to a network.

Meanwhile, the present invention may be implemented as a computer program. The present invention can be combined with hardware and implemented as a computer program stored in a computer-readable recording medium.

Methods according to embodiments of the present invention may be implemented in the form of programs readable by various computer means and recorded on computer-readable recording media. Here, the recording medium may include program commands, data files, data structures, etc. alone or in combination.

Program instructions recorded on the recording medium may be those specially designed and configured for the present invention, or those known and usable to those skilled in computer software.

For example, recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CDROMs and DVDs, and magneto-optical media such as floptical disks. optical media), and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.

Examples of the program command may include a high-level language that can be executed by a computer using an interpreter, as well as a machine language generated by a compiler.

These hardware devices may be configured to act as one or more software modules to perform the operations of the present invention, and vice versa.

In the above, one embodiment of the present invention has been described, but those skilled in the art can add, change, delete, or add components within the scope not departing from the spirit of the present invention described in the claims. The present invention can be variously modified and changed by the like, and this will also be said to be included within the scope of the present invention.

100: chamber
110: ultraviolet light source 120: balanced light forming lens
130: opening 140: scattered light absorbing member
200: driving unit
210: sensor module 220: control module
230: drive motor 240: power control module
250: communication module
300: bracket part
400: moving part

Claims (8)

a chamber having an ultraviolet light source formed therein and radiating ultraviolet rays emitted from the ultraviolet light source into an indoor space;
It is formed on at least one side of the chamber and rotationally drives the chamber so that ultraviolet rays are repeatedly irradiated to the floor and wall surfaces, the distance from the ultraviolet light source to the floor surface and wall surface of the indoor space is measured, and the measured distance is a driving unit for adjusting the rotational speed of the chamber or the intensity of the ultraviolet light source so that the irradiation amount of ultraviolet light is uniform on the bottom surface and the wall surface based on the base;
Containing, smart ultraviolet sterilizer.
The method according to claim 1, wherein the driving unit,
a drive motor for rotating the chamber;
A sensor module for measuring a vertical distance from the UV light source to a floor surface of the indoor space and a horizontal distance from the UV light source to a wall surface of the indoor space;
A control module calculating a distal point, which is a point in the indoor space farthest from the UV light source, by applying a trigonometric function to the vertical distance and the horizontal distance.
Containing, smart ultraviolet sterilizer.
The method according to claim 2, wherein the control module,
Controlling the driving motor so that the rotational speed of the chamber is reduced in a section in which the distance at which the ultraviolet rays reach from the ultraviolet light source increases;
Controlling the driving motor so that the rotational speed of the chamber increases in a section in which the distance the ultraviolet rays reach from the ultraviolet light source decreases.
Smart UV Sterilizer.
The method according to claim 2, wherein the driving unit,
Further comprising a power control module for controlling the intensity of the ultraviolet light source by controlling the power applied to the ultraviolet light source,
The control module,
The power control module is controlled to increase the intensity of the ultraviolet light source in a section where the distance the ultraviolet rays reach from the ultraviolet light source increases, and in a section where the distance the ultraviolet rays reach from the ultraviolet light source decreases, the intensity of the ultraviolet light source increases. A smart ultraviolet sterilizer for controlling the power control module to decrease the intensity.
The method of claim 2,
Further comprising a communication module for performing wireless communication with an external management server,
The management server updates the amount of UV irradiation required for sterilization according to the prevalent pathogen and transmits it to the communication module;
The control module adjusts the rotation speed of the chamber or the intensity of the ultraviolet light source based on the updated ultraviolet radiation amount information, smart ultraviolet sterilization device.
The method of claim 2,
The control module calculates the corrected UV irradiation amount by reflecting the UV intensity change according to the UV light source use time, and adjusts the rotation speed of the chamber or the intensity of the UV light source based on the corrected UV irradiation amount, smart ultraviolet sterilization. Device.
The method of claim 1,
A bracket part fastening and fixing the chamber and the driving part;
A smart ultraviolet sterilization device that is formed in connection with the bracket and further includes a movable moving part.
According to any one of claims 1 to 7,
When the presence of a person or living creature is detected by the occupancy sensor, the chamber faces upward to sterilize the upper part of the room,
When it is detected that no human or living creature is present by the occupancy sensor, the chamber rotates and sterilizes by the drive unit.
Smart UV Sterilizer.

Images