KR101817100B1 - Apparatus for evaluating indoor air quality and air purifying system having the same - Google Patents

Apparatus for evaluating indoor air quality and air purifying system having the same Download PDF

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KR101817100B1
KR101817100B1 KR1020150137698A KR20150137698A KR101817100B1 KR 101817100 B1 KR101817100 B1 KR 101817100B1 KR 1020150137698 A KR1020150137698 A KR 1020150137698A KR 20150137698 A KR20150137698 A KR 20150137698A KR 101817100 B1 KR101817100 B1 KR 101817100B1
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index
concentration
gas
temperature
humidity
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KR20170038389A (en
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김종철
이병혁
이경환
김태현
강상현
김호현
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코웨이 주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
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    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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    • G01—MEASURING; TESTING
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/004—CO or CO2
    • G—PHYSICS
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    • G01W—METEOROLOGY
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Abstract

The air quality evaluation apparatus according to an embodiment of the present invention includes a pollution degree measuring unit for measuring the pollution degree of the surrounding air, a temperature and humidity measuring unit for measuring the temperature and humidity of the ambient air, the pollution degree measurement data measured by the pollution degree measuring unit, And an air quality index calculating unit for calculating an air quality index based on the temperature and humidity measurement data measured by the measuring unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an air quality evaluation apparatus,

The present invention relates to an air quality evaluation apparatus and an air cleaning system having the same.

The air purifier is a device that purifies pollutants contained in the air and converts them into fresh air.

Generally, the air purifier is configured to measure the air pollution degree through various sensors for measuring indoor air quality, and to perform the air purifying function based on the measured air pollution degree.

Conventional air cleaners merely operate air cleaning and the like by judging the air quality according to the amount of dust in the air or the amount of carbon dioxide and can not comprehensively consider various factors for comforting indoor air, And it is difficult to effectively improve the air quality according to the discomfort index.

The present invention has been made to solve the above problems of the prior art and it is an object of the present invention to provide an air conditioner capable of calculating an air quality index according to an unpleasantness index determined according to various types of air pollution such as indoor dust concentration, And an air cleaning system having the same.

The air quality evaluation apparatus according to an embodiment of the present invention includes a pollution degree measuring unit for measuring the pollution degree of the surrounding air, a temperature and humidity measuring unit for measuring the temperature and humidity of the ambient air, the pollution degree measurement data measured by the pollution degree measuring unit, And an air quality index calculating unit for calculating an air quality index based on the temperature and humidity measurement data measured by the measuring unit.

In one embodiment, the air quality index calculating unit may calculate the pollution index using the pollution degree measurement data, calculate the pollution index using the temperature and humidity measurement data, and calculate the pollution index and the discomfort index The air quality index can be calculated.

In one embodiment, the air quality index calculating unit may calculate the air quality index by applying a first weight to the pollution index and applying a second weight to the unpleasantness index.

In one embodiment, the contamination level measuring unit may include a dust sensor for measuring the concentration of dust in the air, a gas sensor for measuring the concentration of the gas in the air, and a CO2 sensor for measuring the concentration of carbon dioxide in the air.

In one embodiment, the air quality index calculating unit may calculate the fine dust index using the dust concentration measurement data measured by the dust sensor, and calculate the gas index using the gas concentration measurement data measured by the gas sensor The carbon dioxide index can be calculated using the carbon dioxide concentration measurement data measured by the CO2 sensor, and the contamination index can be calculated by summing up the fine dust index, the gas index, and the carbon dioxide index.

In one embodiment, the fine dust index may have a plurality of intervals according to a predetermined size range, and the plurality of intervals of the fine dust index may have a dust concentration interval according to a predetermined size range, The fine dust index for the dust concentration value measured by the dust sensor can be calculated by the following equation (1).

Equation 1

Figure 112015094578058-pat00001

Here, Y PM10 is fine dust index, γ PM10 is fine dust index calculation coefficient, [PM 10] is dust concentration, [PM 10] min is the dust concentration minimum, Y PM10, min is minute dust index in the dust concentration zone May be the minimum value of the fine dust index in the interval.

In one embodiment, the fine dust count calculation coefficient can be calculated by the following equation (2).

(2)

Figure 112015094578058-pat00002

Here, γ PM10 is the fine dust index calculation coefficient, d Y is the size of the fine dust index section, and d [PM 10 ] may be the size of the dust concentration section.

In one embodiment, the gas exponent may have a plurality of intervals according to a predetermined size range, and the plurality of intervals of the gas exponent may each have a gas concentration interval according to a predetermined size range, The gas index for the gas concentration value measured by the sensor can be calculated by the following equation (3).

(3)

Figure 112015094578058-pat00003

[VCOs] min is the gas concentration minimum in the gas concentration section, Y VCOs , min is the gas concentration index in the gas index section, Y VCOs is the gas index, y VCOs is the gas index calculation coefficient, May be a minimum value.

In one embodiment, the gas index calculation coefficient can be calculated by the following equation (4).

Equation 4.

Figure 112015094578058-pat00004

Here, γ is a gas VCOs index calculation coefficient, Y d, the size, d [VCOs] of the gas index interval may be, the size of the gas concentration range.

In one embodiment, the carbon dioxide index may have a plurality of intervals according to a predetermined size range, and the plurality of intervals of the carbon dioxide index may have a carbon dioxide concentration interval according to a predetermined size range, The carbon dioxide index for the carbon dioxide concentration value measured by the sensor can be calculated by the following equation (5).

Equation (5)

Figure 112015094578058-pat00005

Here, Y CO2 is carbon dioxide index, γ CO2 is carbon dioxide index calculation coefficient, [CO 2] is the carbon dioxide concentration, [CO 2] min is in the carbon dioxide concentration minimum, Y CO2, min is carbon dioxide index interval in the carbon dioxide concentration range It may be the minimum carbon dioxide index.

In one embodiment, the carbon dioxide index calculation coefficient can be calculated by the following equation (6).

≪ / RTI >

Figure 112015094578058-pat00006

Here, γ CO2 is the carbon dioxide index calculation coefficient, dY is the size of the carbon dioxide exponent interval, and d [CO 2 ] may be the size of the carbon dioxide concentration interval.

In one embodiment, the air quality index calculator may apply a third weight to the fine dust index, apply a fourth weight to the gas index, and apply a fifth weight to the carbon dioxide index So that the contamination index can be calculated.

In one embodiment, the temperature and humidity measuring unit may include a temperature sensor for measuring the temperature in the air and a humidity sensor for measuring the humidity in the air.

In one embodiment, the air quality index calculating unit may calculate the temperature index using the temperature measurement data measured by the temperature sensor, calculate the humidity index using the humidity measurement data measured by the humidity sensor, , The comfort index can be calculated by summing the temperature index and the humidity index.

In one embodiment, the temperature index can be calculated by the following equation (7) when the temperature value measured by the temperature sensor is equal to or higher than the first temperature value and equal to or lower than the second temperature value.

Equation (7)

Figure 112015094578058-pat00007

Here, Y T may be a temperature index, T 1 may be a first temperature, T 2 may be a second temperature, and T 3 may be a temperature measured by a temperature sensor.

In one embodiment, the air quality index calculating unit may calculate the temperature index as 100 when the temperature value measured by the temperature sensor is lower than or equal to the first temperature value.

In one embodiment, the humidity index can be calculated by the following equation (8) when the humidity value measured by the humidity sensor is equal to or higher than the first humidity value and equal to or lower than the second humidity value.

Equation (8)

Figure 112015094578058-pat00008

Here, Y H is the humidity index, H 1 is the first humidity, H 2 is the second humidity, and H 3 is the humidity measured in the humidity sensor.

In one embodiment, the air quality index calculating unit may calculate the humidity index as 100 when the humidity value measured by the humidity sensor is equal to or lower than the first humidity value or equal to or higher than the second humidity value.

In one embodiment, the air quality index calculating unit may apply a sixth weight to the temperature index, and calculate the pollution index by applying a seventh weight to the humidity index.

According to an embodiment of the present invention, there may be an air cleaning system including the air quality evaluation apparatus and the air cleaning apparatus performing the air cleaning function according to the calculated air quality index.

According to the embodiment of the present invention, it is possible to calculate the air quality index according to the air pollution degree such as indoor dust concentration, gas concentration carbon dioxide concentration, and the unpleasantness index determined according to temperature and humidity, The air quality can be effectively improved because various factors for comforting the indoor air can be comprehensively considered.

1 is a block diagram illustrating an air cleaning system according to an embodiment of the present invention.
2 is a block diagram for explaining an air quality evaluation apparatus according to an embodiment of the present invention.
FIG. 3 is a block diagram for explaining an embodiment of the pollution degree measuring unit and the temperature / humidity measuring unit of FIG. 2;
4 is a graph for explaining the temperature index according to the temperature value measured by the temperature sensor.
5 is a graph for explaining the humidity index according to the humidity value measured by the humidity sensor.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art.

In the drawings referred to in the present invention, elements having substantially the same configuration and function will be denoted by the same reference numerals, and the shapes and sizes of the elements and the like in the drawings may be exaggerated for clarity.

1 is a block diagram illustrating an air cleaning system according to an embodiment of the present invention.

Referring to FIG. 1, an air cleaning system 1 according to an embodiment of the present invention may include an air quality evaluation apparatus 10 and an air cleaning apparatus 20.

The air quality evaluation apparatus 10 can calculate the pollution index by measuring the pollution degree of the surrounding air and can calculate the unpleasantness index by measuring the temperature and the humidity and calculates the air pollution index using the pollution index and the unpleasantness index . The air quality evaluation apparatus 10 can output the calculated air quality index to the air cleaning apparatus.

Such an air quality evaluation apparatus 10 will be described in more detail below with reference to FIG. 2 to FIG.

The air cleaning apparatus 20 can perform an air cleaning operation based on the air quality index inputted from the air quality evaluation apparatus 10. [

FIG. 2 is a block diagram for explaining an air quality evaluation apparatus according to an embodiment of the present invention, and FIG. 3 is a diagram for explaining an embodiment of the pollution degree measuring unit and the temperature / humidity measuring unit of FIG.

Referring to FIG. 2, the air quality evaluation apparatus 10 according to an embodiment of the present invention may include a pollution level measuring unit 100, a temperature / humidity measurement unit 200, and an air quality index calculating unit 300.

The pollution degree measuring unit 100 may measure pollution degree of the surrounding air to generate pollution degree measurement data, and may output the pollution degree measurement data to the air quality index calculating unit 300. In one embodiment, the contamination level measurement section 100 may include a dust sensor 110, a gas sensor 120, and a CO 2 sensor 130, as in FIG.

The dust sensor 110 can measure dust concentration in the air to generate dust concentration measurement data, and can output it to the air quality index calculating unit 300. The dust sensor can be any known dust sensor as long as it can measure the concentration of dust in the air.

The gas sensor 120 may measure gas concentration in the air to generate gas concentration measurement data and output it to the air quality index calculating unit 300. In one embodiment, the gas sensor 120 may be a VOCs sensor capable of measuring the concentration of volatile organic compounds in the air. The gas sensor 120 can be any known gas sensor as long as it can measure the gas concentration in the air.

The CO 2 sensor 130 can measure carbon dioxide in the air to generate carbon dioxide concentration measurement data and output it to the air quality index calculating unit 300. The CO 2 sensor can be any known CO 2 sensor as long as it can measure the concentration of carbon dioxide in the air.

The temperature and humidity measurement unit 200 may generate temperature and humidity measurement data by measuring the temperature and humidity of ambient air, and may output the data to the air quality index calculating unit 300.

In one embodiment, the temperature and humidity measurement unit 200 may include a temperature sensor 210 and a humidity sensor 220, as shown in FIG. In another embodiment, the temperature / humidity measuring unit 200 may include a temperature / humidity sensor.

The temperature sensor 210 and the humidity sensor 220 may measure temperature and humidity in the air to generate temperature measurement data and humidity measurement data and output the data to the air quality index calculating unit 300. The temperature sensor 210 and the humidity sensor 220 may be any known temperature sensor or humidity sensor capable of measuring temperature and humidity.

The air quality index calculating unit 300 may calculate the air quality index using the pollution degree measurement data measured by the pollution degree measuring unit 100 and the temperature and humidity measurement data measured by the temperature and humidity measuring unit 200. [ In one embodiment, the air quality index calculating unit 300 may be implemented by a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit (ASIC), a field programmable gate array Processor.

In one embodiment, the air quality index calculating unit 300 may calculate the pollution index using the pollution degree measurement data generated by the pollution degree measuring unit 100, and may use the temperature / humidity measurement data generated by the temperature / So that the discomfort index can be calculated. The air quality index calculating unit 300 may calculate the air quality index by summing the pollution index and the unpleasantness index. Here, the air quality index calculating unit 300 may calculate the air pollution index and the unpleasantness index The air quality index can be calculated.

Here, the pollution index is an index indicating the degree of contamination of air by pollutants such as dust, living gas or carbon dioxide, and may have a value between 0 and 100 depending on the degree of pollution (for example, the concentration of pollutants in the air) . Also, the unpleasantness index is an index indicating the degree of unpleasantness of a person depending on the humidity and temperature of the air, and may have a value between 0 and 100 depending on temperature and humidity.

In one embodiment, the air quality index calculating unit 300 may calculate the air quality index by applying a first weight to the pollution index and applying a second weight to the unpleasantness index. Here, the sum of the first weight and the second weight may be one. In one embodiment, the first weight may be 0.8 and the second weight may be 0.2.

In one embodiment, the air quality index calculating unit 300 may calculate the fine dust index using the dust concentration measurement data measured by the dust sensor 110, and may calculate the gas concentration measurement data measured by the gas sensor 120 It can be used to calculate the gas index can be calculated by using a carbon dioxide index for the carbon dioxide concentration measurement data measured by the CO 2 sensor.

The air quality index calculating unit 300 may calculate the pollution index by summing up the fine dust index, the gas index, and the carbon dioxide index.

Here, the air quality index calculating unit 300 can apply the third weight to the fine dust index, apply the fourth weight to the gas index, and apply the fifth weight to the carbon dioxide index.

Here, the fine dust index, the gas index, and the carbon dioxide index can have values ranging from 0 to 100 depending on the dust concentration, the gas concentration, or the carbon dioxide concentration in the air, respectively.

In one embodiment, the fine dust index, the gas index, and the carbon dioxide index may have a plurality of intervals according to a predetermined size range, respectively, as shown in Table 1 below, and each of the intervals may have a predetermined range of concentration .

Indices
density 0-25 25-50 50-75 75-100 Dust concentration (PM 10 )
(/ / M 3 ) 0-30 30-80 80-150 15-500 Gas concentration
(Standardized value) 0-55 55-78 78-87 87-100 Carbon dioxide concentration
(ppm) 0-450 450-1000 1000-3000 3000-5000

Here, the fine dust index can be calculated by the following equation (1).

Figure 112015094578058-pat00009

Here, Y PM10 is a fine dust index, γ PM10 is a fine dust index calculation coefficient, [PM 10] is dust concentration, [PM 10] min is the dust concentration minimum, Y PM10 in the dust concentration range, min is the fine Means the minimum value of the fine dust index in the dust index section.

Here, the fine dust index calculation coefficient may be determined according to the magnitude of the dust concentration interval including the dust concentration measured by the dust sensor 110 and the size of the fine dust exponent interval corresponding to the concentration interval. Specifically, the fine dust index calculation coefficient is inversely proportional to the magnitude of the dust concentration zone, and is proportional to the size of the fine dust zone.

In one embodiment, the fine dust index calculation coefficient may be calculated by the following equation (2).

Figure 112015094578058-pat00010

Here, γ PM10 is the fine dust index calculation coefficient, d Y is the size of the fine dust index section, and d [PM 10 ] is the size of the dust concentration section. In one embodiment, the magnitude of the dust concentration interval may be proportional to the concentration value of the dust concentration interval.

In other words, the air quality index calculating unit 300 can set the size of the dust density zone to be larger as the dust density value increases.

For example, in the dust density measured by the dust sensor (110) 50 ㎍ / m 3 in the case, the size of the dust concentration range that includes the said dust content of 50 (of 30 to 80 and the minimum maximum value of the interval And the size of the fine dust-index section corresponding to the dust density section is 25 (the difference between the maximum value 50 of the fine dust-index period and the minimum value 25). Therefore, in this case, the fine dust index calculation coefficient may be 25/50, i.e., 0.5.

Further, when the dust concentrations measured by the dust sensor 110, the 50 ㎍ / m 3, by substituting the fine dust by the calculation coefficient calculation on the equation (1) calculate the fine dust index.

Referring to Table 1, when the dust concentration measured by the dust sensor 110 is 50 / / m 3 , the minimum dust concentration value in the dust concentration interval including the dust concentration is 30 / / m 3 , The minimum value of the fine dust index in the fine dust index section corresponding to the concentration section is 25.

Substituting this in Equation 1, Y PM10 = 0.5 * ( 50-30) , so the + 25, the dust density measured by the dust sensor 110 in the case where the fine dust index 50 ㎍ / m 3 is the 35 do.

In one embodiment, the gas index can be calculated by the following equation (3).

Figure 112015094578058-pat00011

Here, Y VCOs is a gas index, γ VCOs gas index calculation coefficient, [VCOs] is the gas concentration, [VCOs] min is the gas concentration minimum value in the gas concentration section, Y VCOs, min is in the gas index interval Gas index minimum value.

Here, the gas index calculation coefficient may be determined according to the size of the gas concentration section including the gas concentration measured by the gas sensor 120 and the size of the gas exponent section corresponding to the concentration section.

In one embodiment, the gas index calculation coefficient can be calculated by the following equation (4).

Figure 112015094578058-pat00012

Here, γ VCOs is the gas index calculation coefficient, d Y is the size of the gas exponent interval, and d [VCOs] is the size of the gas concentration interval. In one embodiment, the magnitude of the gas concentration section may be inversely proportional to the concentration value of the gas concentration section.

For example, when the gas concentration measured by the gas sensor 120 is 65, the size of the gas concentration section including the gas concentration is 23 (the difference between the maximum value of 78 and the minimum value of 55) , And the size of the gas exponent section corresponding to the gas concentration section is 25 (the difference between the maximum value of the gas exponent section of 50 and the minimum value of 25). Therefore, in this case, the gas index calculation coefficient may be 25/23.

Further, when the gas concentration measured by the gas sensor 120 is 65, the calculated gas index calculation coefficient is substituted into the above equation (3) to calculate the gas index.

Referring to Table 1, when the gas concentration measured by the gas sensor 120 is 65, the minimum value of the dust concentration in the gas concentration section including the gas concentration is 55, and the gas index section corresponding to the gas concentration section The minimum gas index value is 25.

When the gas concentration measured by the gas sensor 120 is 65, the gas index is 36 because Y VCOs = 25/23 * (65-55) +25.

In one embodiment, the carbon dioxide index can be calculated by the following equation (5).

Figure 112015094578058-pat00013

Here, where Y CO2 is carbon dioxide index, γ CO2 is carbon dioxide index calculation coefficient, [CO 2] is the carbon dioxide concentration, [CO 2] min is the carbon dioxide concentration minimum, Y CO2, min is carbon dioxide index interval in the carbon dioxide concentration range The minimum value of the carbon dioxide index.

Here, the carbon dioxide index calculation coefficient may be determined according to the size of the carbon dioxide concentration interval including the carbon dioxide concentration measured by the CO 2 sensor 130 and the size of the carbon dioxide index interval corresponding to the concentration interval.

In one embodiment, the carbon dioxide index calculation coefficient can be calculated by the following equation (6).

Figure 112015094578058-pat00014

Here, γ CO2 is the CO2 index calculation coefficient, dY is the size of the carbon dioxide exponent interval, and d [CO 2 ] is the size of the carbon dioxide concentration interval. In one embodiment, the size of the carbon dioxide concentration interval may be proportional to the concentration value of the carbon dioxide concentration interval.

For example, when the carbon dioxide concentration measured by the CO 2 sensor 130 is 550, the size of the carbon dioxide concentration range including the carbon dioxide concentration is 550 (the difference between the maximum value 1000 and the minimum value 450) And the size of the carbon dioxide exponent interval corresponding to the carbon dioxide concentration interval is 25 (the difference between the maximum value of the gas exponent interval of 50 and the minimum value of 25). Therefore, in this case, the carbon dioxide index calculation coefficient may be 25/550.

Further, when the carbon dioxide concentration measured by the CO 2 sensor 130 is 550, the carbon dioxide index is calculated by substituting the calculated carbon dioxide index calculation coefficient into the above equation (5).

Referring to Table 1, when the carbon dioxide concentration measured by the CO 2 sensor 130 is 550, the minimum carbon dioxide concentration in the carbon dioxide concentration interval including the carbon dioxide concentration is 450, and the carbon dioxide concentration corresponding to the carbon dioxide concentration interval The minimum carbon dioxide index in the section is 25.

If the gas concentration measured by the gas sensor 120 is 65, the gas index is 30 because Y CO 2 = 25/550 * (550-450) +25.

The air quality index calculating unit 300 can calculate the pollution index by summing up the indexes of fine dust, gas and carbon dioxide.

Here, the air quality index calculating unit 300 can apply the third weight to the fine dust index, apply the fourth weight to the gas index, and apply the fifth weight to the carbon dioxide index.

The weight may be a weight of each index on the pollution index, and the sum of the third weight, the fourth weight, and the fifth weight may be one.

In one embodiment, the third weight may be 0.8, the fourth weight 0.15, and the fifth weight 0.05.

The air quality index calculating unit 300 may calculate the unpleasantness index using the temperature and humidity measurement data measured by the temperature / humidity measuring unit 200.

Specifically, the air quality index calculating unit 300 may calculate the temperature index using the temperature measurement data measured by the temperature sensor 210, and calculate the humidity index using the humidity measurement data measured by the humidity sensor 220 And the discomfort index can be calculated by summing the temperature index and the humidity index.

In one embodiment, the air quality index calculating unit 300 may calculate the unpleasantness index by adding the sixth and seventh weights to the temperature index and the humidity index. Here, the sixth weight and the seventh weight may be 0.5, respectively. In addition, the temperature index and the humidity index can have a value between 0 and 100 depending on temperature or humidity.

FIG. 4 is a graph for explaining a temperature index according to a temperature value measured by a temperature sensor, and FIG. 5 is a graph for explaining a humidity index according to a humidity value measured by the humidity sensor.

Referring to FIG. 4, the temperature index according to an embodiment of the present invention is measured by a temperature sensor (for example, a temperature sensor) centering on a preset center temperature Tc, a temperature at which a person can feel the most comfortable in the indoor space 210 may become larger or lower as the temperature Tc is increased. That is, the temperature index can be proportional to the temperature distance from the center temperature.

Here, the temperature (the first temperature T 1 and the second temperature T 2 ) at which the temperature index becomes the maximum value can be set and the temperature value measured by the temperature sensor 210 can be set at the first temperature T 1 ) and the second temperature (T 2 ), the temperature index can be calculated by the following equation (7).

Figure 112015094578058-pat00015

Here, Y T is a temperature index, T 1 is a first temperature, T 2 is a second temperature, and T 3 is a temperature measured by a temperature sensor.

Alternatively, if the temperature value measured by the temperature sensor 210 is less than the first temperature T 1 or greater than the second temperature T 2 , the temperature index may be 100.

For example, when T 1 is 17 ° C, T 2 is 29 ° C, Tc is 23 ° C, and the temperature value measured from the temperature sensor 210 is 20 ° C (T 3 ) Upon substitution, the temperature index (Y T ) is calculated as 50.

5, the first humidity (H 1 ), the second humidity (H 2 ), and the center humidity (Hc) value can be set in the same manner as the temperature index, and the humidity sensor 220 If the measured humidity value is a value between the first humidity (H 1 ) and the second humidity (H 2 ), it can be calculated by the following equation (8).

Figure 112015094578058-pat00016

Here, Y H is the humidity index, H 1 is the first humidity, H 2 is the second humidity, and H 3 is the humidity measured by the humidity sensor.

Alternatively, if the humidity value measured by the humidity sensor 220 is less than the first humidity H 1 or greater than the second humidity H 2 , the humidity index may be 100.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the particular forms disclosed. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: Air quality evaluation device
20: Air purifier
100: Pollution degree measuring unit
110: Dust sensor
120: Gas sensor
130: CO 2 sensor
200: Temperature and humidity measuring unit
210: Temperature sensor
220: Humidity sensor
300: Air Quality Index Calculation Unit

Claims (33)

delete delete delete delete delete delete delete A pollution degree measuring unit for measuring the pollution degree of the surrounding air;
A temperature and humidity measuring unit for measuring temperature and humidity of the ambient air; And
Calculating a pollution index by using the pollution degree measurement data measured by the pollution degree measurement unit, calculating an unpleasantness index by using the temperature and humidity measurement data measured by the temperature and humidity measurement unit, adding the pollution index and the unpleasantness index And an air quality index calculating unit for calculating an air quality index,
The pollution degree measuring unit may measure,
A dust sensor for measuring the concentration of dust in the air;
A gas sensor for measuring the gas concentration in the air; And
A CO2 sensor for measuring the concentration of carbon dioxide in the air;
/ RTI >
The air-quality-
Calculating a fine dust index using the dust concentration measurement data measured by the dust sensor,
Calculating a gas index using the gas concentration measurement data measured by the gas sensor,
The carbon dioxide index is calculated using the carbon dioxide concentration measurement data measured by the CO2 sensor,
The pollution index is calculated by summing up the fine dust index, the gas index and the carbon dioxide index,
Wherein the fine dust index has a plurality of intervals according to a predetermined size range,
Wherein the plurality of sections of the fine dust indexes each have a dust concentration section corresponding to a predetermined size range,
Wherein the fine dust index with respect to the dust concentration value measured by the dust sensor is calculated by the following equation (1).

Equation 1
Figure 112017069165302-pat00017


(Wherein, Y PM10 is fine dust index, γ PM10 was calculated fine dust index coefficient, [PM 10] is dust concentration, [PM 10] min is the dust concentration minimum, Y PM10, min in the dust concentration interval fine dust The minimum dust particle index in the exponential section)
The method according to claim 8, wherein the fine dust-
Is inversely proportional to the size of the dust concentration section corresponding to the fine dust factor calculation coefficient.
[10] The method of claim 9,
And is proportional to the concentration value of the dust concentration section.
The method according to claim 8, wherein the fine dust-
The air quality evaluation device being calculated by the following equation (2).

(2)
Figure 112015094578058-pat00018


Here, γ PM10 is the fine dust index calculation coefficient, d Y is the size of the fine dust index section, d [PM 10 ] is the size of the dust concentration section,
A pollution degree measuring unit for measuring the pollution degree of the surrounding air;
A temperature and humidity measuring unit for measuring temperature and humidity of the ambient air; And
Calculating a pollution index by using the pollution degree measurement data measured by the pollution degree measurement unit, calculating an unpleasantness index by using the temperature and humidity measurement data measured by the temperature and humidity measurement unit, adding the pollution index and the unpleasantness index And an air quality index calculating unit for calculating an air quality index,
The pollution degree measuring unit may measure,
A dust sensor for measuring the concentration of dust in the air;
A gas sensor for measuring the gas concentration in the air; And
A CO2 sensor for measuring the concentration of carbon dioxide in the air;
/ RTI >
The air-quality-
Calculating a fine dust index using the dust concentration measurement data measured by the dust sensor,
Calculating a gas index using the gas concentration measurement data measured by the gas sensor,
The carbon dioxide index is calculated using the carbon dioxide concentration measurement data measured by the CO2 sensor,
The pollution index is calculated by summing up the fine dust index, the gas index and the carbon dioxide index,
The gas index has a plurality of intervals according to a predetermined size range,
Wherein the plurality of sections of the gas index each have a gas concentration section according to a predetermined size range,
Wherein the gas index for the gas concentration value measured by the gas sensor is calculated by the following equation (3).

(3)
Figure 112017069165302-pat00019


(Wherein, Y VCOs are gas index, γ VCOs gas index calculation coefficient, [VCOs] is the gas concentration, [VCOs] min is the gas concentration minimum, Y VCOs, min in the gas concentration section is the gas in the gas index interval Exponent minimum value)
The gas-fuel-ratio calculation method according to claim 12,
Is inversely proportional to the magnitude of the gas concentration section corresponding to the gas index calculation coefficient.
14. The method according to claim 13,
Wherein the concentration value of the gas concentration section is inversely proportional to the concentration value of the gas concentration section.
The gas-fuel-ratio calculation method according to claim 12,
The air-quality evaluation device as claimed in claim 4,

Equation 4.
Figure 112015094578058-pat00020


Where y VCOs is the gas index calculation coefficient, d Y is the size of the gas exponent interval, and d [VCOs] is the size of the gas concentration interval)
A pollution degree measuring unit for measuring the pollution degree of the surrounding air;
A temperature and humidity measuring unit for measuring temperature and humidity of the ambient air; And
Calculating a pollution index by using the pollution degree measurement data measured by the pollution degree measurement unit, calculating an unpleasantness index by using the temperature and humidity measurement data measured by the temperature and humidity measurement unit, adding the pollution index and the unpleasantness index And an air quality index calculating unit for calculating an air quality index,
The pollution degree measuring unit may measure,
A dust sensor for measuring the concentration of dust in the air;
A gas sensor for measuring the gas concentration in the air; And
A CO2 sensor for measuring the concentration of carbon dioxide in the air;
/ RTI >
The air-quality-
Calculating a fine dust index using the dust concentration measurement data measured by the dust sensor,
Calculating a gas index using the gas concentration measurement data measured by the gas sensor,
The carbon dioxide index is calculated using the carbon dioxide concentration measurement data measured by the CO2 sensor,
The pollution index is calculated by summing up the fine dust index, the gas index and the carbon dioxide index,
The carbon dioxide index has a plurality of intervals according to a predetermined size range,
Wherein the plurality of sections of the carbon dioxide index each have a carbon dioxide concentration interval according to a predetermined size range,
And the carbon dioxide index for the carbon dioxide concentration value measured by the CO2 sensor is calculated by the following equation (5).

Equation (5)
Figure 112017069165302-pat00021


(Wherein, Y CO2 is carbon dioxide index, γ CO2 is carbon dioxide index calculation coefficient, [CO 2] is the carbon dioxide concentration, [CO 2] min is the carbon dioxide concentration minimum value in the carbon dioxide concentration range, Y CO2, min is in the carbon dioxide index interval Minimum carbon dioxide index)
The method according to claim 16, wherein the carbon dioxide index calculation coefficient
Wherein the air-fuel ratio is proportional to the size of the carbon dioxide concentration interval corresponding to the carbon dioxide index calculation coefficient.
18. The method of claim 17, wherein the size of the carbon dioxide concentration interval
And the concentration value of the carbon dioxide concentration section is proportional to the concentration value of the carbon dioxide concentration section.
The method according to claim 16, wherein the carbon dioxide index calculation coefficient
The air-quality evaluation device is calculated by the following equation (6).

≪ / RTI >
Figure 112017069165302-pat00022


(Where y CO2 is the CO2 index calculation coefficient, d Y is the size of the carbon dioxide index section, d [CO 2 ] is the size of the carbon dioxide concentration section)
The air-conditioning system according to any one of claims 8, 12, and 16,
Wherein a third weight is applied to the fine dust index, a fourth weight is applied to the gas index, and a fifth weight is applied to the carbon dioxide index to calculate the pollution index.
21. The method of claim 20,
Wherein the sum of the third weight, the fourth weight, and the fifth weight is one.
21. The method of claim 20,
And the third weight is 0.8.
21. The method of claim 20,
And the fourth weight is 0.15.
21. The method of claim 20,
And the fifth weight is 0.05.
The apparatus according to any one of claims 8, 12 and 16, wherein the temperature /
A temperature sensor for measuring the temperature in the air; And
And a humidity sensor for measuring the humidity in the air.
26. The air-conditioning system according to claim 25,
Calculating a temperature index using the temperature measurement data measured by the temperature sensor,
A humidity index is calculated using the humidity measurement data measured by the humidity sensor,
And calculates a comfort index by summing the temperature index and the humidity index.
27. The method of claim 26,
And when the temperature value measured by the temperature sensor is equal to or higher than the first temperature value and equal to or lower than the second temperature value,

Equation (7)
Figure 112015094578058-pat00023


(Where Y T is a temperature index, T 1 is a first temperature, T 2 is a second temperature, and T 3 is a temperature measured by a temperature sensor)
27. The air conditioning system according to claim 26,
And the temperature index is calculated as 100 when the temperature value measured by the temperature sensor is lower than or equal to the first temperature value or higher than the second temperature value.
27. The method of claim 26,
And the humidity value measured by the humidity sensor is equal to or higher than the first humidity value and equal to or lower than the second humidity value.

Equation (8)
Figure 112015094578058-pat00024


(Where H H is the humidity index, H 1 is the first humidity, H 2 is the second humidity, and H 3 is the humidity measured in the humidity sensor)
27. The air conditioning system according to claim 26,
Wherein the humidity index is calculated as 100 when the humidity value measured by the humidity sensor is equal to or lower than the first humidity value or equal to or higher than the second humidity value.
27. The air conditioning system according to claim 26,
Wherein the sixth index is applied to the temperature index and the seventh weight is applied to the humidity index to calculate the contamination index.
32. The method of claim 31,
And the sum of the sixth weight and the seventh weight is 1.
The method according to any one of claims 8, 12 and 16,
The air quality evaluation device; And an air cleaning device that performs an air cleaning function according to the calculated air quality index.
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KR101997112B1 (en) * 2018-11-21 2019-07-05 김정호 Method and apparatus for automatically controlling illumination of a space based on IoT
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