US20240068683A1

US20240068683A1 - Smart air disinfection ventilation system

Info

Publication number: US20240068683A1
Application number: US17/980,198
Authority: US
Inventors: Kyung Won Kim
Original assignee: Seoul Institute
Current assignee: Seoul Institute
Priority date: 2022-08-25
Filing date: 2022-11-03
Publication date: 2024-02-29
Also published as: KR102501859B1

Abstract

Provided is a smart air disinfection ventilation system and method that can perform sterilization of floating bacteria and a floating virus in indoor air intended for minimizing harmfulness to the human body, and can minimize the consumption of energy.

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to Korean Patent Application No. 10-2022-0107050, filed on Aug. 25, 2022, in the Korean Intellectual Property Office, the entire contents of which is hereby incorporated by reference.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a smart air disinfection ventilation system, and, more particularly, to a smart air disinfection ventilation system which is capable of performing sterilization of floating bacteria and a floating virus in indoor air intended for minimizing harmfulness to the human body, and minimizing the consumption of energy.

Description of the Related Arts

In general, a ventilating device functions to make air in the inside or in the outside come in or go out forcibly, and to thereby send the air to the outside or the inside, and the ventilating device is used for ventilation of publicly used facilities, like schools, hospitals, cuisines, office buildings, subway stations, underground shopping areas, station waiting rooms, airport facilities, libraries, museums, bathhouses, internet cafes, efficiency apartments, which are mainly used by many people together, and is formed to make fresh air come in after filtering off impurities from outdoor air in conditioning equipment or a clean room, and so on.
General control techniques applied to ventilating devices include manual driving, time-scheduled driving, and an automatic operation by sensing of CO2.
A conventional structure of the ventilating device is generally configured in such a manner that an outdoor air inlet and an indoor air outlet are formed at one side end of a casing, an outdoor air outlet and an indoor air inlet are formed at another side end, each of a supplying fan and an exhausting fan is installed in an inner side of the casing, and a total enthalpy heat exchange part, a filter, and so on are installed in the center of the inner sides.
As a disease caused by a virus, like coronavirus COVID-19, has recently raged, the World Health Organization has recognized the Corona-19 virus to be infectious through spread in the air, so it has been required to develop techniques of reducing hosts, like bacteria, a droplet, aerosol, and so on, as well as a virus which causes infection by spread of the virus in indoor air.
Although a droplet and aerosol can be reduced using an air purifier according to a conventional art, it is problematic in that most of techniques of reducing floating bacteria and a floating virus which are floating in the air are harmful to the human body because methods using ozone are used.
Furthermore, in case of publicly used facilities, since there is no disinfection and ventilation system which can be applied to large-sized ventilation facilities having a duct and a small-sized ventilating device without a duct, it has been required to develop intelligent air disinfection ventilation systems capable of reducing floating bacteria and a floating virus in indoor air, and economically performing ventilation and sterilization.

SUMMARY OF THE INVENTION

In order to solve these problems, an object of the present invention is to provide a smart air disinfection ventilation system which is capable of performing sterilization of floating bacteria and a floating virus in indoor air intended for minimizing harmfulness to the human body, and minimizing the consumption of energy.
In order to achieve the object, according to one exemplary embodiment of the present invention, a smart air disinfection ventilation system may comprise: a disinfection ventilation unit configured to remove a droplet and aerosol from outdoor air passing through an outside opening and indoor air passing through a ventilating opening using one or more filters, to perform a collection and sterilization of a floating virus and floating bacteria, to perform the decomposition of ozone, which occurs during the inducement of plasma for sterilization of the floating virus and the floating bacteria, based on ultraviolet rays and hydrogen peroxide, to perform a heat exchange between the outdoor air and the indoor air, to perform the control of air volume intended for supplying the outdoor air and exhausting the indoor air, and to measure one or more concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air; a control unit configured to monitor an operation state of the disinfection ventilation unit, and to control an operation of the disinfection ventilation unit based on a result of monitoring through algorithm learned; and a display unit configured to display the operation state of the disinfection ventilation unit according to control of the control unit.
Furthermore, according to the exemplary embodiment, the disinfection ventilation unit may comprise: an air disinfection part configured to remove a droplet and aerosol from the outdoor air passing through the outside opening and the indoor air passing through the ventilating opening using one or more filters, to perform a collection and sterilization of a floating virus and floating bacteria, and to cause ozone occurring during the inducement of plasma for sterilization of the floating virus and the floating bacteria to convert into radical by a reaction to the radiation of ultraviolet rays, and evaporated hydrogen peroxide; a heat exchange part configured to perform a heat exchange between the outdoor air and the indoor air; an air blower part configured to perform a ventilating operation so that outdoor air is supplied into the inside, and indoor air is exhausted to the outside, and to perform the control of air volume according to ventilation; and an air quality perception part configured to measure one or more concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air.
Furthermore, according to the exemplary embodiment, the air disinfection part may comprise: a first decrease part having one or more filters intended for removing a droplet included in the air, and aerosol; a second decrease part having a plasma induction part intended for sterilizing a floating virus and floating bacteria in the air passing through the first decrease part using plasma, and a high efficient particulate air (HEPA) filter intended for collecting the floating virus and the floating bacteria; and a third decrease part having a luminous source outputting ultraviolet-C (UV-C) light and an evaporator for hydrogen peroxide, configured to cause the floating virus and floating bacteria collected in the second decrease part to be sterilized by radiation of ultraviolet-C (UV-C) light to the second decrease part, and evaporated hydrogen peroxide, and to cause ozone occurring during the inducement of plasma through the plasma induction part to convert into radical by a reaction to the ultraviolet-C (UV-C) light and the evaporated hydrogen peroxide.
Furthermore, according to the exemplary embodiment, the control unit may comprise: an intelligent control part configured to monitor an operation state of the disinfection ventilation unit, and to output operation control signals of a collection part, a disinfection part, a safety part, and a ventilation part according to a signal for replacement of the filters intended for removing the droplet and aerosol, and algorithm learned from concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air; the collection part installed at the filters intended for removing the droplet and the aerosol, and configured to output a replacement alarm signal according to light transmissivity of the filters; the disinfection part configured to adjust the intensity of plasma generated according to an operation of the plasma induction part for sterilization of the floating virus and the floating bacteria; the safety part configured to sense whether a luminous source radiating the ultraviolet rays operates normally or not, and whether the hydrogen peroxide lacks or not on the basis of information sensed from an illuminance sensor, and a humidity sensor; the ventilation part configured to perform the control of air volume intended for supplying the outdoor air and exhausting the indoor air; and a sensing part configured to sense concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air through a plurality of sensors, and to thereby measure whether or not the concentrations exceed prefixed reference concentrations.
Furthermore, according to the exemplary embodiment, the intelligent control part may output a replacement alarm signal classified into any one of “abnormality in power”, “normal”, “replacement” according to light transmissivity sensed from the collection part, and a power supply state.
Furthermore, according to the exemplary embodiment, the intelligent control part may control an operation of the plasma induction part so that the intensity of plasma increases or decreases in prefixed steps according to a disinfection value P calculated by the following formula: P=[0.6667O³−4O²+6.3333O], where “O³” represents ozone, “O²” represents oxygen, and “O” represents oxygen radical.
Furthermore, according to the exemplary embodiment, the intelligent control part may judge whether the luminous source radiating ultraviolet rays operates normally or not, and whether the hydrogen peroxide lacks or not according to a safety value concerning ozone U_Land a safety value concerning hydrogen peroxide U_Hcalculated by the following formulae:
$U_{L} = [\frac{L}{L_{s}}],$
where “L” represents intensity of illumination concerning the luminous source radiating ultraviolet rays, and “L_s” represents reference intensity of illumination, and
$U_{H} ? [\begin{matrix} H \\ ? \end{matrix}],$ $? indicates text missing or illegible when filed$
where “H” represents humidity concerning an evaporation of hydrogen peroxide, and “H_s” represents reference humidity.
Furthermore, according to the exemplary embodiment, the intelligent control part may control an operation of the air blower part so that air volume increases or decreases in prefixed steps according to a ventilation value V calculated by the following formula: V=C+1, where “C” represents a sensing value based on a concentration of carbon dioxide measured with respect to a reference concentration of indoor air quality concerning carbon dioxide.
Furthermore, according to the exemplary embodiment, the intelligent control part may calculate a sensing value concerning ozone O and a sensing value concerning carbon dioxide C by the following formulae:
$O 3 [\frac{?}{?}],$ $? indicates text missing or illegible when filed$
where “C_O ₃” represents a concentration of ozone measured, and “C_O ₂, s” represents a reference concentration of indoor air quality concerning ozone, and
$C = 3 [\begin{matrix} ? \\ ? \end{matrix}],$ $? indicates text missing or illegible when filed$
where “C_CO ₂” represents a concentration of carbon dioxide measured, and “C_CO ₂, s” represents a reference concentration of indoor air quality concerning carbon dioxide.
The present invention is advantageous in that sterilization of floating bacteria and a floating virus in indoor air intended for minimizing harmfulness to the human body can be realized, and the consumption of energy can be minimized.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing a smart air disinfection ventilation system according to one exemplary embodiment of the present invention.

FIG. 2 is a block diagram showing the constitution of a disinfection ventilation unit of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 .

FIG. 3 is an exemplary view showing a structure of the disinfection ventilation unit according to the exemplary embodiment shown in FIG. 2 .

FIG. 4 is an exemplary view showing the constitution of an air disinfection part of the disinfection ventilation unit according to the exemplary embodiment shown in FIG. 2 .

FIG. 5 is a block diagram showing the constitution of a control unit of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 .

FIG. 6 is a block diagram showing the constitution of a display unit of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 .

FIG. 7 is a flow chart intended for explaining an operating process of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 .

DETAILED DESCRIPTION OF THE INVENTION

Hereinafter, the present invention will be described in detail with reference to preferable
exemplary embodiments of the present invention and the accompanying drawings, wherein it is described on the assumption that the same reference numerals shown in the drawings designate the same constituent elements.
Before the description of the detailed contents for embodying the present invention, it is to be noted that the detailed description of constitutions directly unrelated with the technical gist of the present invention will be omitted within the scope which does not make the technical gist of the present invention unclear.
Furthermore, the terms and words used in the present specification and claims should be construed as having meanings and concepts which are coincident with the technical idea of the invention based on the principle that an inventor can define the concepts of appropriate terms for describing his or her invention in the best mode.
The expression used in the present specification, what something “comprises” and/or “comprising” a constituent element(s), means further comprising other constituent elements, not excluding the existence or addition of the other constituent elements.
Furthermore, each of the terms “˜part”, “˜module”, and so on means a unit of handling at least one function or operation, which can be embodied in the form of hardware or software, or a combination of the hardware and the software.
Furthermore, the term “at least one” is defined as a term including a singular form and a plural form, and although there is no term like at least one, it will be apparent that each constituent element may be in all the singular forms and the plural forms, and may have singular or plural meanings.
Furthermore, the fact that each constituent element is furnished in a singular form or a plural form can be changed according to each exemplary embodiment.
Hereinafter, preferable exemplary embodiments of a smart air disinfection ventilation system and method according to one exemplary embodiment of the present invention are described in detail with reference to the accompanying drawings.
FIG. 1 is a block diagram showing a smart air disinfection ventilation system according to one exemplary embodiment of the present invention, FIG. 2 is a block diagram showing the constitution of a disinfection ventilation unit of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 , FIG. 3 is an exemplary view showing a structure of the disinfection ventilation unit according to the exemplary embodiment shown in FIG. 2 , FIG. 4 is an exemplary view showing the constitution of an air disinfection part of the disinfection ventilation unit according to the exemplary embodiment shown in FIG. 2 , FIG. 5 is a block diagram showing the constitution of a control unit of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 , FIG. 6 is a block diagram showing the constitution of a display unit of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 , and FIG. 7 is a flow chart intended for explaining an operating process of the smart air disinfection ventilation system according to the exemplary embodiment shown in FIG. 1 .
Referring to FIG. 1 to FIG. 7 , the smart air disinfection ventilation system according to one exemplary embodiment of the present invention may comprise: a disinfection ventilation unit 100; a control unit 200; and a display unit 300 so as to sterilize floating bacteria and a floating virus for minimizing harmfulness to the human body, and to minimize the consumption of energy.
The disinfection ventilation unit 100 may remove a droplet and aerosol from outdoor air passing through an outside opening 400 and indoor air passing through a ventilating opening 600 using one or more filters, and may collect and sterilize a floating virus and floating bacteria.
Furthermore, the disinfection ventilation unit 100 decomposes ozone occurring during the inducement of plasma for sterilization of a floating virus and floating bacteria through an oxidation process based on ultraviolet rays and hydrogen peroxide so that a decrease in ozone can be realized.
Furthermore, the disinfection ventilation unit 100 may make a heat exchange between the outdoor air and the indoor air occur.
Also, the disinfection ventilation unit 100 may carry out the control of air volume intended for supplying the outdoor air and exhausting the indoor air.
Furthermore, the disinfection and ventilation unit 100 may measure and provide one or more concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air, and to do so, the disinfection and ventilation unit may comprise: an air disinfection part 110; a heat exchange part 120; an air blower part 130; and an air quality perception part 140.
The air disinfection part 110 may remove a droplet and aerosol from the outdoor air passing through the outside opening 400 and the indoor air passing through the ventilating opening 600 using one or more filters, may collect and sterilize a floating virus and floating bacteria, and the air disinfection part, which is a constitution intended for causing ozone occurring during the inducement of plasma for sterilization of the floating virus and the floating bacteria to convert into radical through a reaction to radiation of ultraviolet rays, and evaporated hydrogen peroxide, may comprise: a first decrease part 111; a second decrease part 112; and a third decrease part 113.
The first decrease part 111 may be furnished with one or more filters configured to remove a droplet included in the air, and aerosol.
That is, the first decrease part 111 may consist of a pre-filter 111A and a medium filter 111B configured to remove a droplet, and aerosol including fine dust, and so on.
The pre-filter 111A may cause a life span of the medium filter 111B to be lengthened by removing floating matter, foreign substance, and so on having a diameter of 3 μm or more, and may configured in such a manner as to mix a non-woven fabric, a synthetic fiber or a wood fiber having 80% or more filtering efficiency by a gravimetric method (AFI).
The medium filter 111B may remove a particle having a diameter of 1 μm to 3 μm, and aerosol, and may be composed of a biosynthetic material.
Furthermore, the medium filter 111B may configured in such a manner that the measurement of light transmissivity of the control unit 200 resulting from accumulated droplets and aerosol can be realized using a colorimetric method.
The second decrease part 112, which is a constitution intended for collecting a floating virus and floating bacteria from the air passing through the first decrease part 111, and sterilizing the collected floating virus and floating bacteria, may comprise a plasma induction part 112A configured to sterilize the floating virus and the floating bacteria using plasma, and a HEPA filter 112B configured to collect the floating virus and the floating bacteria.
The plasma induction part 112A may consist of a high temperature or dielectric plasma induction device, and may make part of the floating virus and floating bacteria sterilized by ozone occurring during the inducement of plasma, and radical.
The HEPA filter 112B may remove a particle having a diameter of 0.1 μm to 0.3 μm.
The third decrease part 113 may have a luminous source outputting ultraviolet C (UV-C) light, and an evaporator for hydrogen peroxide.
The UV-C, which is ultraviolet light on the basis of 265 nm of a wavelength, may consist of one or more luminous sources including a UV-C LED, or a UV-C lamp.
The evaporator for hydrogen peroxide (H2O2) causes hydrogen peroxide to convert from a liquid state to a gaseous state at the normal temperature, and to be radiated.
Furthermore, the third decrease part 113 may operate in such a manner that the floating virus and the floating bacteria collected into the second decrease part 112 are sterilized as the ultraviolet C (UV-C) light and the evaporated hydrogen peroxide are radiated by the HEPA filter 112B of the second decrease part 112.
Furthermore, the third decrease part 113 causes ozone, which is a by-product occurring during the inducement of plasma from the plasma induction part 112A of the second decrease part 112, to convert into radical by a reaction to radiation of the ultraviolet C (UV-C) light and evaporated hydrogen peroxide.
That is, the third decrease part 113 may cause hydroxyl radical (OH·) and superoxide anion radical (·O₂—), ozone (O₃), and so on to occur by plasma generated from the plasma induction part 112A of the second decrease part 112, and may perform an advanced oxidation process of decomposing the generated ozone (O₃) into hydroxyl radical (OH·) through photosynthesis with hydrogen peroxide (H₂O₂) and photodecomposition by a combination with ultraviolet rays.
The heat exchange part 120 may carry out a heat exchange between the outdoor air passing through the outside opening 400, and the indoor air passing through the ventilating opening 600.
Furthermore, the heat exchange part 120 may be configured in a flat plate-like form in which outdoor air from the outside (OA) and return air from the inside (RA) aren't mixed, or in a mixed form in which outdoor air from the outside (OA) and return air from the inside (RA) are mixed, and the mixed form may be produced in such a manner that air leakage (a leakage ratio) reaches 0%, and thus the heat exchange part may be installed at ventilation facilities connected to a duct, or ventilation facilities to which no duct is attached.
Furthermore, the heat exchange part 120 may be configured in a complete exhaust (100% outdoor air) form in which changing indoor air is performed in such a manner as to make the indoor air completely exhausted to the outside so that consumed power can be reduced, and an indoor temperature and humidity can be in harmony.
The air blower part 130 may supply outdoor air to the inside, and carry out a ventilating operation of exhausting indoor air to the outside, and the air blower part may control air volume resulting from ventilating according to the quality of air based on concentrations of ozone (O₃) and carbon dioxide (CO₂).
The air quality perception part 140, which is a constitution intended for measuring one or more concentrations of ozone (O₃) and carbon dioxide (CO₂) included in the outdoor air and the indoor air, may consist of an ozone perception sensor, and a carbon dioxide-perception sensor, and may be installed at the ventilating opening 600 and a supplying unit 700.
The control unit 200, which is a constitution intended for monitoring an operation state of the disinfection ventilation unit 100, and controlling an operation of the disinfection ventilation unit 100 based on a result of monitoring through algorism learned, may comprise: an intelligent control part 210; a collection part 220; a disinfection part 230; a safety part 240; a ventilating part 250; and a sensing part 260.
The intelligent control part 210 may monitor the operation state of the disinfection ventilation unit 100, may output the following control signal through pre-learned algorithm (program) with respect to operation conditions of the collection part 220, the disinfection part 230, the safety part 240, and the ventilating part 250 according to a signal for replacement of the filters configured to remove a droplet and aerosol, and the algorithm learned from the concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air.
When the intelligent control part 210 receives information about light transmissivity sensed from the collection part 220, and a power supply state, on the basis of the received information, the intelligent control part may output a collection part value F based on the control signal classified into “0” in case of “abnormality in power”, “1” in case of “normal”, and “2” in case that replacement of the filters is required.
Furthermore, the intelligent control part 210 may calculate a disinfection value P based on a concentration of ozone (O₃) sensed from the ozone perception sensor of the sensing part 260 using algorithm so that the disinfection part 230 can adjust the intensity of plasma occurring according to an operation of the plasma induction part 112A of the second decrease part 112 intended for sterilization of the floating virus and the floating bacteria.
The disinfection value P may be calculated by the following formula:
P=[0.6667O³−4O²+6.3333O], where, “O₃” represents ozone, “O₂” represents oxygen, and “O” represents oxygen radical.
That is, the intelligent control part may cause the operation of the plasma induction part 112A to stop when the calculated disinfection value P is “0”, and the intelligent control part may output an operation control signal of the plasma induction part 112A so that intensity of the plasma can increase or reduce according to each step when the disinfection value P is “1” to “3”.
Furthermore, the intelligent control part 210 may calculate a safe value concerning ultraviolet rays U_Lbased on illuminance of a luminous source radiating ultraviolet rays sensed from a illuminance sensor using the algorithm so that the safety part 240 can judge an incorrect operation of the luminous source of the third decrease part 113 which radiates ultraviolet rays, and whether hydrogen peroxide of the evaporator for hydrogen peroxide lacks or not.
The safety value concerning ultraviolet rays U_Lmay be calculated by the following formula:
$U_{L} = [\frac{L}{L_{s}}],$
where “L” represents illuminance concerning a luminous source radiating ultraviolet rays, and “L_s” represents reference illuminance.
That is, the intelligent control part 210 may output a control signal for preventing an incorrect operation of the luminous source which radiates ultraviolet rays according to the safety value concerning ultraviolet rays U_Lcalculated.
Furthermore, the intelligent control part 210 may calculate a safety value concerning hydrogen peroxide UH based on an evaporation of hydrogen peroxide sensed from a humidity sensor using the algorithm so that the safety part 240 can judge an incorrect operation of the luminous source of the third decrease part 113 which radiates ultraviolet rays, and whether hydrogen peroxide of the evaporator for hydrogen peroxide lacks or not.
The safety value concerning hydrogen peroxide UH may be calculated by the following formula:
$U_{H} = [\frac{H}{H_{s}}],$
where “L” represents humidity concerning an evaporation of hydrogen peroxide, and “H_s” represents reference humidity.
That is, the intelligent control part 210 may output a control signal for preventing an incorrect operation of the evaporator for hydrogen peroxide which evaporates hydrogen peroxide according to the safe value concerning hydrogen peroxide UH calculated.
Furthermore, the intelligent control part 210 may calculate a ventilation value V based on a value concerning carbon dioxide sensed from a carbon dioxide-perception sensor of the sensing part 260 using the algorithm so that the ventilation part 250 can cause the air blower part 130 to perform the control of air volume intended for supplying outdoor air and exhausting indoor air.
The ventilation value V may be calculated by the following formula:
V=C+1, where “C” represents a sensing value based on a concentration of carbon dioxide measured with respect to a reference concentration of indoor air quality concerning carbon dioxide.
That is, intelligent control part 210 may cause an operation of the air blower part 130 to stop when the ventilation value V calculated is “0”, and the intelligent control part may output an operation control signal of the air blower part 130 so that air volume can increase and decrease according to each step when the ventilation value V is “1” to “3”.
Furthermore, the intelligent control part 210 may calculate a sensing value concerning ozone O, and a sensing value concerning carbon dioxide C so that the sensing part 260 can sense concentrations of ozone and carbon dioxide include in the outdoor air and the indoor air through the ozone perception sensor, and the carbon dioxide-perception sensor, and can measure whether or not the concentrations of ozone and carbon hydrogen sensed exceed prefixed reference concentrations.
The sensing value concerning ozone O may be calculated by the following formula:
$O 3 [\begin{matrix} ? \\ ? \end{matrix}],$ $? indicates text missing or illegible when filed$
where “C_O ₃” represents a concentration of ozone measured, “C_O ₃, s” represents a reference concentration of indoor air quality concerning ozone, and [ ] represents a gaussian constant.
Furthermore, a sensing value concerning carbon dioxide C may be calculated by the following formula:
$C ? 3 [\begin{matrix} ? \\ ? \end{matrix}],$ $? indicates text missing or illegible when filed$
where “C_CO ₂” represents a concentration of carbon dioxide measured, “C_CO ₂, s” represents a reference concentration of indoor air quality concerning carbon dioxide, and [ ] represents a gaussian constant.
The collection part 220 may be installed at the medium filter 111B of the first decrease part 111 intended for removing a droplet and aerosol, and may output a replacement alarm signal by measuring light transmissivity of the medium filter 111B using a colorimetric method.
Furthermore, the collection part 220 may transmit information about a power supply state by measuring the power supply state.
The disinfection part 230 may control the intensity of plasma generated according to an operation of the plasma induction part 112A of the second perception part 112 intended for sterilization of a floating virus and floating bacteria according to the control signal of the intelligent control part 210.
The safety part 240 may have a illuminance sensor and a humidity sensor, and may sense an incorrect operation of the luminous source of the third decrease part 113 which radiates ultraviolet rays based on information sensed from the illuminance sensor and the humidity sensor, and whether hydrogen peroxide of the evaporator for hydrogen peroxide lacks or not.
The ventilation part 250 may carry out the control of air volume of the air blower part 130 intended for supplying outdoor air and exhausting indoor air according to the control signal of the intelligent control part 210.
The sensing part 260 may sense concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air through the ozone perception sensor and the carbon dioxide-perception sensor, and may measure whether or not the concentrations of ozone and carbon dioxide sensed exceed prefixed reference concentrations.
The display unit 300, which is a constitution intended for displaying an operation state of the disinfection ventilation unit 100 according to control of the control unit 200, may comprise; a collection display part 310; a disinfection display part 320; a safety display part 330; and a ventilation display part 340.
The collection display part 310, which is a constitution intended for displaying whether the first decrease part 111 operates normally or not, causes an operation state to be classified and displayed into “abnormality in power”, “normal”, “replacement” according to a control signal of the collection part outputted by the intelligent control part 210 according to a replacement alarm signal rendered by the collection part 220.
The disinfection display part 320, which is a constitution intended for displaying generation intensity of plasma, causes the generation intensity of plasma to be displayed according to a control signal of the disinfection part outputted from the intelligent control part 210.
The safety display part 330, which is a constitution intended for displaying whether the third decrease part 113 operates normally or not, is configured in such a manner that when an operation state is “0” according to the control signal of the safety part outputted from the intelligent control part 210, the state “replacement” is displayed, and when an operation state is “1”, the state “normal” is displayed.
The ventilation display part 340, which is a constitution intended for displaying whether the air blower part 130 operates normally or not, and air volume of the air blower part 130, is configured in such a manner that when an operation state is “0” according to a control signal of the ventilation part outputted from the intelligent control part 210, air volume “stop” is displayed, and when an operation state is “1” to “3”, air volume of the air blower part “1” to “3” is displayed.
Hereinafter, the operation of the intelligent control part 210 according to the other exemplary embodiment of the present invention is described.
The intelligent control part 210 may confirm whether power supply is normal or not according to an operation of pre-learned algorithm when power is supplied S100, and may output its result through the display unit 300.
Furthermore, the intelligent control part 210 may judge an operation state by receiving information about light transmissivity sensed from the collection part 220, and a power supply state S200, and may output any one of “0”, “1”, or “2” into a collection part value F according to a result of judgement.
That is, in step S200, when the collection part value is “0”, the intelligent control part 210 confirms whether power supply of the filter exchange alarm device is normal or not S210, and the intelligent control part causes the power supply state to be displayed into “abnormality in power” through the display unit 300 S211.
Furthermore, in step S200, when the collection part value F is “2”, the intelligent control part 210 sets up the safety value, which includes the disinfection value P, the safety value concerning ozone U_L, and the safety value concerning hydrogen peroxide U_H, into “0” S220, and the intelligent control part causes the state “replacement” to be displayed on the display unit 300 so that each filter of the first decrease part 111 can be replaced with a new one S221.
Also, in step S200, when the collection part value F is “1”, the intelligent control part 210 may judge that the operation state is “normal”, thereby calculating the sensing value concerning ozone O, and the intelligent control part may judge whether the sensing value concerning ozone O calculated is “0”, or “O>0” S300.
As a result of judgement in step S300, when the sensing value concerning ozone O is “0”, the intelligent control part 210 confirms that power supply of the ozone perception sensor is abnormal 5310, and causes the state “abnormal” to be displayed on the display unit 300 S311.
Furthermore, in step S300, when the sensing value concerning ozone O is “O>0”, the intensity of plasma is set up into the disinfection value P S 320, and the fixed disinfection value P is displayed on the display unit 300 S321.
Continuously, the intelligent control part 210 may calculate a sensing value concerning carbon dioxide C, and may judge whether the sensing value concerning carbon dioxide C calculated is “0”, or “C>0” S400.
As a result of judgement in step S400, when the sensing value concerning carbon dioxide C is “0”, the intelligent control part 210 confirms that power supply of the carbon dioxide-perception sensor is abnormal S410, and causes the state “abnormal” to be displayed on the display unit 300 S411.
Furthermore, in step S400, when the sensing value concerning carbon dioxide C is “C>0”, intensity of the air blower part 130 is set up so as to reach a ventilation value V S 420, and the ventilation value V fixed is displayed on the display unit 300 S421.
Furthermore, the intelligent control part 210 may calculate the safety value U including the safety value concerning ozone UL, and the safety value concerning hydrogen peroxide UH, and may judge whether the calculated safety value U is “0”, or “U>0” S500.
As a result of judgement in step S500, when the safety value U is “0”, the intelligent control part 210 judges that a safety state is abnormal, thereby setting up the disinfection value P into “0” S510, and the intelligent control part causes the state “abnormal” to be displayed on the display unit 300 S511.
Furthermore, in step S500, when the safety value U is “U>0”, the state “normal” is displayed on the display unit 300 S601.
Furthermore, in step S500, when any one of the safety value concerning ozone UL and the safety value concerning hydrogen peroxide UH is “0”, the safety value U may be judged to be “0”.
Accordingly, sterilization of the floating bacteria and the floating virus in indoor air intended for minimizing harmfulness to the human body can be realized, and the consumption of energy can be minimized.
As previously described, although the present invention has been described with reference to the preferable exemplary embodiments of the present invention, it is to be understood that various modifications and variations can be made by those having ordinary skill in the relevant technical field without deviating from the idea and the scope of the present invention.
The reference numerals of the drawings described in the claims of the present invention are only described for clarity and convenience in description, and should not be construed as limiting the present invention, and the thicknesses of each line or the sizes of each constituent element, and so on illustrated in the drawings may be exaggeratedly drawn for clarity and convenience in description in the process for describing the exemplary embodiments.
Furthermore, with respect to the aforesaid terms, which are terms defined in consideration of their respective functions in the present invention, since their meanings may become different according to an intention or a usual practice of a user and an operator, these terms should be construed based on the contents throughout the present specification.
Furthermore, although it is not clearly illustrated or described, it will be apparent that modifications in various forms including the technical idea of the present invention can be made by those having ordinary skill in the technical field to which the present invention pertains on the basis of the described matters of the present invention, and these modifications still belong to the scope of a right of the present invention.
Furthermore, the aforesaid exemplary embodiments described with reference to the accompanying drawings are intended for describing the present invention, and the scope of the right of the present invention isn't limited to these exemplary embodiments.

Claims

What is claimed is:

1. A smart air disinfection ventilation system, comprising:

a disinfection ventilation unit 100 configured to remove a droplet and aerosol from outdoor air passing through an outside opening 400 and indoor air passing through a ventilating opening 600 using one or more filters, to perform a collection and sterilization of a floating virus and floating bacteria, to perform the decomposition of ozone, which occurs during the inducement of plasma for sterilization of the floating virus and the floating bacteria, based on ultraviolet rays and hydrogen peroxide, to perform a heat exchange between the outdoor air and the indoor air, to perform the control of air volume intended for supplying the outdoor air and exhausting the indoor air, and to measure one or more concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air;

a control unit 200 configured to monitor an operation state of the disinfection ventilation unit 100, and to control an operation of the disinfection ventilation unit 100 based on a result of monitoring through algorithm learned; and

a display unit 300 configured to display the operation state of the disinfection ventilation unit 100 according to control of the control unit 200.

2. The system of claim 1, wherein the disinfection ventilation unit 100 comprises:

an air disinfection part 110 configured to remove a droplet and aerosol from outdoor air passing through the outside opening 400 and indoor air passing through the ventilating opening 600 using one or more filters, to perform a collection and sterilization of a floating virus and floating bacteria, and to cause ozone occurring during the inducement of plasma for sterilization of the floating virus and the floating bacteria to convert into radical by a reaction to the radiation of ultraviolet rays, and evaporated hydrogen peroxide;

a heat exchange part 120 configured to perform a heat exchange between the outdoor air and the indoor air; an air blower part 130 configured to perform a ventilating operation so that outdoor air is supplied into the inside, and indoor air is exhausted to the outside, and to perform the control of air volume according to ventilation; and

an air quality perception part 140 configured to measure one or more concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air.

3. The system of claim 2, wherein the air disinfection part 110 comprises:

a first decrease part 111 having one or more filters intended for removing a droplet included in the air, and aerosol;

a second decrease part 112 having a plasma induction part 112A intended for sterilizing a floating virus and floating bacteria in the air passing through the first decrease part 111 using plasma, and a high efficient particulate air (HEPA) filter 112B intended for collecting the floating virus and the floating bacteria; and

a third decrease part 113 having a luminous source outputting ultraviolet-C (UV-C) light and an evaporator for hydrogen peroxide, configured to cause the floating virus and floating bacteria collected in the second decrease part 112 to be sterilized by radiation of ultraviolet-C (UV-C) light to the second decrease part 112, and evaporated hydrogen peroxide, and to cause ozone occurring during the inducement of plasma through the plasma induction part 112A to convert into radical by a reaction to the ultraviolet-C (UV-C) light and the evaporated hydrogen peroxide.

4. The system of claim 1, wherein the control unit 200 comprises:

an intelligent control part 210 configured to monitor an operation state of the disinfection ventilation unit 100, and to output operation control signals of a collection part 220, a disinfection part 230, a safety part 240, and a ventilation part 250 according to a signal for replacement of a filter intended for removing a droplet and aerosol, and algorithm learned from concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air;

the collection part 220 installed at the filters intended for removing the droplet and the aerosol, and configured to output a replacement alarm signal according to light transmissivity of the filters;

the disinfection part 230 configured to adjust the intensity of plasma generated according to an operation of the plasma induction part 112A for sterilization of the floating virus and the floating bacteria;

the safety part 240 configured to sense whether a luminous source radiating the ultraviolet rays operates normally or not, and the hydrogen peroxide lacks or not on the basis of information sensed from an illuminance sensor, and a humidity sensor;

the ventilation part 250 configured to perform the control of air volume intended for supplying the outdoor air and exhausting the indoor air; and

a sensing part 260 configured to sense concentrations of ozone and carbon dioxide included in the outdoor air and the indoor air through a plurality of sensors, and to thereby measure whether or not the concentrations exceed prefixed reference concentrations.

5. The system of claim 4, wherein the intelligent control part 210 outputs a replacement alarm signal classified into any one of “abnormality of power”, “normal”, “replacement” according to light transmissivity sensed from the collection part 220, and a power supply state.

6. The system of claim 4, wherein the intelligent control part 210 controls an operation of the plasma induction part 112A so that intensity of plasma increases or decreases in prefixed steps according to a disinfection value P calculated by the following formula:

P=[0.6670O³−4O²+6.3333O],

where “O³” represents ozone, “O²” represents oxygen, “O” represents oxygen radical.

7. The system of claim 4, wherein the intelligent control part 210 judges whether a luminous source radiating ultraviolet rays operates normally or not, and whether the hydrogen peroxide lacks or not according to a safety value concerning ozone U_Land a safety value concerning hydrogen peroxide U_Hcalculated by the following formulae:

U_{L} = [\frac{L}{L_{s}}],

where “L” represents illuminance concerning the luminous source radiating ultraviolet rays, and “L_s” represents reference illuminance, and

U_{H} = [\frac{H}{H_{s}}],

where “H” represents humidity concerning an evaporation of hydrogen peroxide, and “H_s” represents reference humidity.

8. The system of claim 4, wherein the intelligent control part 210 controls an operation of the air blower part 130 so that air volume increases or decreases in prefixed steps according to a ventilation value V calculated by the following formula:

V=C+1,

where “C” represents a sensing value based on a concentration of carbon dioxide measured with respect to a reference concentration of indoor air quality concerning carbon dioxide.

9. The system of claim 4, wherein the intelligent control part 210 calculates a sensing value concerning ozone O and a sensing value concerning carbon dioxide C by the following formulae:

O = 3 [\begin{matrix} ? \\ ? \end{matrix}],

? indicates text missing or illegible when filed

where “C_O ₃” represents a concentration of ozone measured, and “C_O ₃, s” represents a concentration of indoor air quality concerning ozone, and

C 3 = [\begin{matrix} ? \\ ? \end{matrix}],

? indicates text missing or illegible when filed

where “C_CO ₂” represents a concentration of carbon dioxide measured, and “C_CO ₂, s” represents a reference concentration of indoor air quality concerning carbon dioxide.