KR20190087246A - Method and system for air cleaning - Google Patents

Abstract

The present invention relates to an air purification method capable of circulating indoor air in consideration of the composition of outdoor air and a system thereof. According to one embodiment of the present invention, an air purification system comprises a first apparatus and a second apparatus. The first apparatus comprises a first measurement unit measuring the composition of outdoor air and a transmission unit transmitting the measured composition of the outdoor air to an indoor apparatus. The second apparatus comprises: a reception unit receiving the composition of the outdoor air; a second measurement unit measuring the composition of indoor air and a biometric signal within a preset radius; a control unit comparing the composition of the outdoor air with the composition of the indoor air to determine which composition is better; and a connection unit, a passage for supplying the outdoor air, generating plasma in the passage to sterilize the received indoor air. When the outdoor air is better than the indoor air, the control unit inducts, sterilizes, and supplies the outdoor air to an indoor space. Moreover, in parallel to composition comparison between the indoor air and outdoor air, the control unit estimates the number of persons within the preset radius based on the measured biometric signal, calculates a proper temperature corresponding to the estimated number of persons, and compares the proper temperature with the indoor temperature to maintain the proper indoor temperature.

Description

[0001] METHOD AND SYSTEM FOR AIR CLEANING [0002]

The present invention relates to an air cleaning method and system, and more particularly, to an air cleaning method and system that compares indoor and outdoor air components, measures a living body signal, compares a room temperature with a calculated temperature based on a measured living body signal, ≪ / RTI >

Recently, interest in air purifiers has been increasing due to the frequent occurrence of dust and fine dust. In the case of DSS, the number of dust dust alarms issued nationwide was 409 in 2015 and 295 in 2016, from the 7th of 2013 to the 16th of 2016.

Such harmful air pollutants such as dust and fine dust are known to threaten the health, and consumers are increasingly interested in it, and the necessity of air purification for maintaining a pleasant indoor environment is emphasized.

In addition, the International Agency for Research on Cancer (IARC) under the World Health Organization (WTO) in 2013 has designated fine dusts as Group 1 carcinogens identified as carcinogenic to humans.

Conventionally, an air purifier capable of cooling the filtered air by a regenerative evaporation method after sucking and filtering air from the outside, and changing the exhaust direction of moisture generated during cooling to a direction desired by the user has been disclosed .

KR 20-0428759 Y1

The present invention relates to a method of controlling a room temperature by measuring a living body signal in a noncontact manner, adjusting a room temperature according to a calculated temperature, circulating indoor air in consideration of indoor and outdoor air components, sterilizing air introduced through a plasma Air cleaning method and system for treating air.

According to an embodiment of the present invention, there is provided an air cleaning method comprising: measuring indoor and outdoor air components and measuring human body signals included in a predetermined radius of a room; Introducing the outdoor air into the room when it is determined that the outdoor air component is better than the indoor air component; Filtering the measured bio-signals in parallel with the inflow step to estimate the number of people included in the predetermined radius; And a step of calculating an appropriate temperature according to the estimated number of people and adjusting the room temperature to the calculated appropriate temperature.

The step of introducing may further include a step of comparing the values included in the measured indoor and outdoor air components to determine which one of the indoor air component and the outdoor air component is better .

Wherein the introducing comprises disinfecting the outdoor air by disinfection; And introducing the sterilized outdoor air into the room.

The disinfecting step may include disinfecting the inhaled outdoor air by exposing the inhaled outdoor air to a plasma.

Wherein the estimating step comprises: filtering the measured bio-signals and separating them according to frequency; And estimating the number of persons based on the number of the separated frequencies.

The step of separating by frequency includes: separating the bio-signals into a respiration signal and a pulse signal; And separating respiration signals and pulse signals having the same frequency band in the separated respiration signal and pulse signal, respectively.

The step of estimating the number of persons may include estimating the number of persons included in the predetermined radius by matching the number of the separated respiration signals and pulse signals.

The adjusting step may include calculating an appropriate temperature according to the estimated number of people based on the indoor area and the usage.

The measuring may include radiating the radar and measuring the human bio-signals through the reflected radar.

The predetermined radius may include a predetermined radius for measuring a living body's vital sign included in the room based on the indoor area and the usage.

According to another aspect of the present invention, there is provided an air cleaning system comprising: a first device for measuring and transmitting an outdoor air component; A receiving unit for receiving the outdoor air component; A second measuring unit for measuring a human body signal included in the indoor air component and the predetermined radius of the room; And comparing the received outdoor air component with the measured indoor air component to cause the outdoor air to flow into the room when the outdoor air component is better, And a control unit for estimating the number of people and adjusting the room temperature based on the estimated number of people.

The first apparatus may further include: a first measuring unit for measuring the outdoor air component; And a transmitter for transmitting the measured outdoor air component to the second device.

The controller may compare the measured indoor air component and the received outdoor air component to determine which one of the indoor air component and the outdoor air component is better.

The plasma display apparatus may further include a connection unit having a first end connected to the first device and a second end connected to the second device and configured to discharge plasma therein.

Wherein the control unit controls the connection unit to suck outdoor air when the outdoor air component is judged to be better than the indoor air component and exposes the sucked outdoor air to the plasma to sterilize the sterilized outdoor air Can be introduced into the room.

The controller may filter the measured bio-signals according to frequency, and estimate the number of persons included in the predetermined radius based on the number of the separated frequencies.

The controller may separate the respiration signal and the pulse signal into the respiration signal and the pulse signal, respectively, after filtering the measured bio-signals to separate the respiration signal and the pulse signal having the same frequency band.

The controller may estimate the number of persons included in the predetermined radius by matching the number of respiration signals and pulse signals having the same frequency band.

The control unit may calculate an appropriate temperature according to the estimated number of people based on the indoor area and the usage, and may adjust the indoor temperature based on the calculated appropriate temperature.

The second measuring unit may emit a radar and measure the human bio-signals through a radar that is reflected and returned.

According to the air cleaning method and system according to an embodiment of the present invention, indoor air can be circulated in consideration of indoor and outdoor air components by comparing indoor and outdoor air components.

In addition, the components of the air that can be measured can be changed according to the place of measurement and the purpose of measurement, thereby providing a customized air cleaning system for the measurement site and the measurement purpose.

There is also an advantage of not only comparing the components of indoor and outdoor air but also adjusting the room temperature by comparing the measured temperature with the measured temperature calculated according to the measured living body signal by measuring the living body signal.

In addition, since the bio-signal is measured based on the UWB (Ultra Wide Band) radar, there is an advantage that the bio-signal can be measured in a non-contact manner.

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the technical features of the invention.
1 is a flowchart briefly showing an air cleaning method according to an embodiment of the present invention.
2 is a block diagram briefly illustrating an air cleaning system in accordance with an embodiment of the present invention.

The terms first and / or second in this specification are used only for the purpose of distinguishing one element from another. That is, the components are not intended to be limited by the terms.

The components, features, and steps referred to in the specification as " comprising " in this specification are intended to mean that there are corresponding components, features, and steps, and do not preclude the presence of one or more other components, features, steps, and the like Is not.

Includes plural forms as long as it is not specified and specified in the singular form herein. That is, the components and the like referred to in this specification may mean the presence or addition of one or more other components or the like.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs to be.

That is, terms such as those defined in commonly used dictionaries should be construed as meaning consistent with meaning in the context of the related art, and unless otherwise expressly defined herein, interpreted in an ideal or overly formal sense It does not.

Hereinafter, an air cleaning method and system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart briefly showing an air cleaning method according to an embodiment of the present invention.

Referring to FIG. 1, step S101 of comparing the values of indoor and outdoor air components (S103), disinfection of the inhaled outdoor air (S105) (S107), estimating the number of people (S109), comparing the appropriate temperature with the room temperature (S111), and adjusting the room temperature (S113) can do.

The measuring step S101 is a step of measuring the biological signals included in the indoor and outdoor air components, the temperature, and the predetermined radius of the room.

For example, fine dust concentration, gas concentration or radon concentration in the indoor and outdoor air components can be measured. In addition, indoor and outdoor temperatures can be measured, and a living body signal included in a predetermined radius of the room can be measured.

The indoor and outdoor air components to be measured are not limited to fine dust, gas and radon but may be changed depending on the place of measurement and the purpose of measurement. For example, components that may be included in air such as carbon monoxide, carbon dioxide, sulfuric acid, ozone, and nitrogen can be measured.

Here, the predetermined radius is a radius that can be set by an arbitrary operation, and may be changed according to the size of the room. For example, in the case of a home, a predetermined radius may be set to 10 m.

The step of comparing the numerical values of the indoor and outdoor air components (S103) is a step of comparing the numerical values of the corresponding indoor and outdoor air components, respectively. For example, the indoor air and outdoor air concentration, Concentration and the like can be compared.

The step of disinfecting the sucked outdoor air (S105) is a step of introducing the outdoor air into the room when it is determined that the components of the outdoor air are better as a result of comparing the components of the indoor and outdoor air.

For example, among the indoor and outdoor air components, the concentration of gas and the concentration of radon are similar, but when the concentration of fine dust is higher than that of the room, the components of the outdoor air may be judged to be better than the components of the room air . In this case, outdoor air can be sucked in to enter the room.

That is, according to an embodiment of the present invention, a plurality of numerical values of indoor and outdoor air components are compared with each other, It is possible to judge whether or not the air component of the air is better.

Plasma is generated inside the pipe for sucking outdoor air, and the sucked outdoor air can be sterilized by plasma.

The step of introducing the sterilized outdoor air into the room (S107) is a step of introducing the sterilized outdoor air into the room while discharging the room air outdoors, and circulating the room air and the outdoor air.

Estimating the number of people (S109); comparing the components of the indoor and outdoor air in parallel; measuring the living body signal within a predetermined radius; And estimating the number of included persons.

For example, a bio-signal of respiration and pulse of a person included in a predetermined radius is collected through a UWB (Ultra Wide Band) radar, and the collected bio-signal is subjected to a filtering process to estimate the number of persons included in a predetermined radius .

That is, in the air cleaning method according to an embodiment of the present invention, a person's bio-signal included in a predetermined radius is measured in a non-contact manner using a UWB radar, and the number of people can be estimated based on the measured bio- have.

The step S111 of comparing the appropriate temperature with the room temperature is a step of calculating an appropriate temperature based on the estimated number of people and comparing the calculated appropriate temperature with the measured room temperature.

The proper temperature may be predetermined according to the number of people included in the room, and may be set in advance by further considering the indoor area and usage, carbon dioxide concentration, humidity, and the like.

For example, the optimum temperature during the summer of a typical home can be set at 26 to 28 degrees, and in the case of a museum, it can be set at 16 to 24 degrees.

The step of adjusting the room temperature (S113) is a step of adjusting the room temperature so that the room temperature is equal to the proper temperature.

For example, assuming that the measured room temperature is 20 degrees, the estimated number of people is 5, and the appropriate temperature is 19.5 degrees when five people are gathered, there is a difference between the measured room temperature and the calculated appropriate temperature, It is possible to increase the room temperature until the room temperature becomes the appropriate temperature of 24 degrees.

As another example, in a museum having an appropriate temperature of 16 to 24 degrees, if a large number of people are located in a specific space, and carbon dioxide and the room temperature are increased, the room temperature can be adjusted to a predetermined proper temperature.

That is, in the air cleaning method according to an embodiment of the present invention, an appropriate temperature is calculated based on the number of people estimated by measuring a biological signal, and the temperature can be automatically adjusted by adjusting the room temperature to an appropriate temperature It has the advantage of reducing energy waste.

2 is a block diagram briefly illustrating an air cleaning system in accordance with an embodiment of the present invention.

2, an air cleaning system according to an embodiment of the present invention includes a first device 100 and a second device 110, and the first device 100 includes a first measurement unit 101 and a second measurement unit 102. [ And the second device 110 may include a receiving unit 111, a second measuring unit 113, a control unit 115, and a connection unit 117. [

The first device 100 corresponds to, for example, an outdoor air conditioner installed outside the room. The first device 100 includes a first measuring unit 101 capable of measuring the composition of outdoor air, And a transmitter 103 that can transmit the component to the second device 110. [

The first measuring unit 101 can measure concentrations of outdoor air components such as fine dust, gas, radon, and the like, outdoor temperature, humidity, and the like, and data about outdoor air components measured by the first measuring unit 101 May be transmitted to the second device 110 through the transmission unit 103. [

The second device 110 may include a receiving unit 111, a second measuring unit 113, a control unit 115, and a connecting unit 117, for example, corresponding to an air conditioner installed in a room.

The receiving unit 111 may be connected to the transmitting unit 103 by wire or wirelessly, and may receive the component of the outdoor air measured by the first measuring unit 101.

For example, the receiving unit 111 and the transmitting unit 103 may be connected to perform data communication through a wireless communication technology such as Bluetooth or WiFi.

The second measuring unit 113 can measure the indoor air component corresponding to the outdoor air component measured by the first measuring unit 101. [

For example, the second measuring unit 113 can measure concentrations of fine dust, gas, radon, and the like, room temperature, humidity, and the like contained in the room air.

Also, the second measuring unit 113 can measure the living body signal included in the predetermined radius of the room in a non-contact manner using the UWB radar.

That is, the second measuring unit 113 emits the UWB radar by a predetermined radius, and measures the human bio-signals included in the predetermined radius through the reflected radar.

For example, the second measuring unit 113 may measure the respiration and the pulse of a person included in a predetermined radius using a UWB radar. Since the respiration and the pulse have a natural frequency for each person, the second measuring unit 113 can measure the living body signal to estimate the number of people included in the predetermined radius.

The control unit 115 compares the outdoor air component measured by the first measuring unit 101 and the indoor air component measured by the second measuring unit 113 to determine whether the indoor air or the outside air is better can do.

For example, the control unit 115 may determine that the outdoor air component is higher than the indoor air component when the indoor fine dust concentration is higher than the outdoor fine dust concentration and the concentration of the gas and the radon is similar to the indoor and outdoor concentrations.

If the control unit 115 determines that the outdoor air component is better than the indoor air component, the control unit 115 may operate the connection unit 117 to circulate the indoor air by introducing the outdoor air.

First, the control unit 115 operates the connection unit 117 to suck outdoor air, and operates the plasma apparatus included in the connection unit 117 to sterilize the sucked outdoor air.

The plasma apparatus generates active hydrogen and oxygen ions in a large amount, and exposes the inhaled outdoor air to the generated active hydrogen and oxygen ions, thereby removing viruses and allergenic substances contained in the inhaled outdoor air.

Thereafter, the control unit 115 can circulate the room air by introducing the sterilized outdoor air into the room through the pipe of the connection unit 117, and simultaneously discharging the indoor air to the outside.

That is, according to one embodiment of the present invention, indoor air can be circulated in consideration of indoor and outdoor air components by comparing indoor and outdoor air components.

In addition, the control unit 115 separates the biological signal measured by the second measuring unit 113 into a respiration signal and a pulse signal, and outputs a respiration signal and a pulse signal having the same frequency band in each of the separated respiration signal and pulse signal, Can be separated.

Thereafter, the control unit 115 can estimate the number of persons included in the predetermined radius by matching the number of the separated respiration signal and pulse signals.

That is, the controller 115 analyzes the measured bio-signals to estimate the number of people included in the predetermined radius, calculates an appropriate temperature according to the estimated number of people, and calculates the calculated appropriate temperature and the measured room temperature By comparison, the room temperature can be adjusted so that the room temperature is equal to the proper temperature.

That is, the control unit 115 calculates an appropriate temperature for the number of people estimated by analyzing the living body signal measured by the second measuring unit 113, can do.

After calculating the appropriate temperature, the control unit 115 compares the calculated room temperature with the calculated appropriate temperature, and adjusts the room temperature to the calculated temperature.

That is, the air cleaning system according to an embodiment of the present invention not only purifies indoor air by circulating air by comparing the components of air in indoor and outdoor air, but also compares an appropriate temperature and a room temperature based on bio- It is possible to reduce the energy waste by controlling the room temperature and to perform efficient air cleaning and temperature control.

The connection unit 117 may include a pipe for sucking outdoor air, disinfecting the outdoor air sucked through a plasma device provided therein, and introducing the sterilized outdoor air into the room.

The connection unit 117 may be operated by the control unit 117 when it is determined that the outdoor air component measured by the first measuring unit 101 is better than the indoor air component measured by the second measuring unit 111.

Although the description herein has been made in some illustrative aspects, various modifications and variations can be made from the categories defined by the following claims, and the technical scope of the invention is defined in the following claims It should be decided by.

100: First device
110: Second device

Claims (20)

Measuring indoor and outdoor air components and measuring human body signals included in a predetermined radius of the room;
Introducing the outdoor air into the room when it is determined that the outdoor air component is better than the indoor air component;
Filtering the measured bio-signals in parallel with the inflow step to estimate the number of people included in the predetermined radius; And
Calculating an appropriate temperature according to the estimated number of persons and adjusting the room temperature to the calculated appropriate temperature;
Air cleaning method. The method according to claim 1,
Wherein the step of introducing comprises:
Further comprising the step of comparing the values included in the measured indoor and outdoor air components to determine which one of the indoor air component and the outdoor air component is better,
Air cleaning method. The method according to claim 1,
Wherein the step of introducing comprises:
Disinfecting the outdoor air; And
And introducing the sterilized outdoor air into the room.
Air cleaning method. The method of claim 3,
Wherein the disinfecting step comprises:
And disinfecting the inhaled outdoor air by exposing the inhaled outdoor air to a plasma.
Air cleaning method. The method according to claim 1,
Wherein the estimating step comprises:
Filtering the measured bio-signals and separating them according to frequencies; And
And estimating the number of persons based on the number of the separated frequencies.
Air cleaning method. 6. The method of claim 5,
The step of separating the frequency-
Filtering the bio-signals to separate them into respiration signals and pulse signals; And
And separating respiration signals and pulse signals having the same frequency band in each of the separated respiration signal and pulse signal,
Air cleaning method. The method according to claim 6,
Estimating the number of persons comprises:
And estimating the number of persons included in the predetermined radius by matching the number of the separated respiration signals and pulse signals.
Air cleaning method. The method according to claim 1,
Wherein the adjusting comprises:
Calculating an appropriate temperature according to the estimated number of people based on the indoor area and the usage,
Air cleaning method. The method according to claim 1,
Wherein the measuring step comprises:
Radiating the radar, and measuring the human ' s biomedical signals through the reflected radar.
Air cleaning method. The method according to claim 1,
The predetermined radius may be,
Wherein the controller is configured to measure a living body signal of a person included in the room based on an area of the room and a usage of the living room,
Air cleaning method. A first device for measuring and transmitting the outdoor air component; And
A receiving unit for receiving the outdoor air component;
A second measuring unit for measuring a human body signal included in the indoor air component and the predetermined radius of the room; And
Compares the received outdoor air component with the measured indoor air component, and when the outdoor air component is better, the outdoor air is introduced into the room,
A second device including a controller for estimating the number of persons included in the predetermined radius based on the measured bio signal and adjusting the room temperature based on the estimated number of persons,
Air cleaning system. 12. The method of claim 11,
The first device comprises:
A first measuring unit for measuring the outdoor air component; And
And a transmitter for transmitting the measured outdoor air component to the second device.
Air cleaning system. 12. The method of claim 11,
Wherein,
And compares the measured indoor air component and the received outdoor air component with each other to determine which one of the indoor air component and the outdoor air component is better,
Air cleaning system. 12. The method of claim 11,
Further comprising a connection portion having a first end connected to the first device and a second end connected to the second device,
Air cleaning system. 15. The method of claim 14,
Wherein,
If it is determined that the outdoor air component is better than the indoor air component,
And a control unit for controlling the connection unit to suck outdoor air, exposing the sucked outdoor air to the plasma to sterilize the sterilized outdoor air,
Air cleaning system. 12. The method of claim 11,
Wherein,
Filtering the measured bio-signals according to frequencies and estimating the number of people included in the predetermined radius based on the number of separated frequencies,
Air cleaning system. 12. The method of claim 11,
Wherein,
The measured bio-signals are filtered and separated into a respiration signal and a pulse signal,
And separating respiration signals and pulse signals having the same frequency band in each of the separated respiration signal and pulse signal,
Air cleaning system. 18. The method of claim 17,
Wherein,
And estimating the number of persons included in the predetermined radius by matching the number of respiration signals and pulse signals having the same frequency band,
Air cleaning system. 12. The method of claim 11,
Wherein,
Calculating an appropriate temperature according to the estimated number of people based on the indoor area and the usage and adjusting the indoor temperature based on the calculated appropriate temperature,
Air cleaning system. 12. The method of claim 11,
Wherein the second measuring unit comprises:
Radiating the radar, and measuring the human living-body signals through a reflected radar,
Air cleaning system.

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