Smart air disinfection ventilation system

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.

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  112 A 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  112 B 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  112 A 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  112 A 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  112 A so that intensity of plasma increases or decreases in prefixed steps according to a disinfection value P calculated by the following formula:
     P=[ 0.6670O 3 −4O 2 +6.3333O],
 
 where “O 3 ” represents ozone, “O 2 ” 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 L  and a safety value concerning hydrogen peroxide U H  calculated by the following formulae: 
       
         
           
             
               
                 
                   U 
                   L 
                 
                 = 
                 
                   [ 
                   
                     L 
                     
                       L 
                       s 
                     
                   
                   ] 
                 
               
               , 
             
           
         
         where “L” represents illuminance concerning the luminous source radiating ultraviolet rays, and “L s ” represents reference illuminance, and 
       
       
         
           
             
               
                 
                   U 
                   H 
                 
                 = 
                 
                   [ 
                   
                     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 
                     [ 
                     
                       
                         
                           
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                             ? 
                           
                         
                       
                     
                     ] 
                   
                 
                 , 
               
             
           
         
         
           
             
               
                 ? 
               
               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 
                   
                   = 
                   
                     [ 
                     
                       
                         
                           
                             ? 
                           
                         
                       
                       
                         
                           
                             ? 
                           
                         
                       
                     
                     ] 
                   
                 
                 , 
               
             
           
         
         
           
             
               
                 ? 
               
               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.