KR20210048754A - System for simultaneous air cleaning at multi points - Google Patents

Abstract

An embodiment of the present invention provides an air cleaning system provided with air cleaners disposed one by one in a plurality of regions in a room respectively and an air cleaning control device for controlling each of the air cleaners, wherein each of the air cleaners includes: an air quality measurement sensor provided with at least one among a radon sensor, an ultrafine dust sensor, and a carbon monoxide sensor; an environment measurement sensor provided with at least one among an atmospheric pressure sensor, a temperature sensor, and a humidity sensor; at least one filter for removing or reducing radon and/or ultrafine dust in the air; and a driving fan configured to generate an air flow passing through the filter, and wherein the air cleaning control device includes: a data storage unit storing measurement data of the air quality measurement sensor and the environment measurement sensor received from each of the air cleaners; and a control unit controlling the operation of each of the air cleaners based on the data stored by the data storage unit. The present invention can integrally control a plurality of the air cleaners by one air cleaning control device to extend the region for air cleaning without great expense.

Description

Indoor multi-point simultaneous air cleaning system {System for simultaneous air cleaning at multi points}

The present invention relates to an air cleaning system, and more particularly, to an air cleaning system capable of integrated control of a plurality of air purifiers each installed in a plurality of areas of the room by a single air cleaning control device.

In general, pollutant gases such as nitrogen dioxide and carbon monoxide generated from smoking and combustion gases are generated in an indoor environment, and radon gas may also be generated from building materials or indoor interior materials. In addition, in recent years, due to the increase of ultrafine dust, interest in indoor air quality is increasing further.

Various gas sensors or measuring equipment for measuring harmful substances in the indoor air are being developed, and many types of air purifier products are being sold. However, although the core of the air purifier is a filter, it is not positive in terms of space, cost, and management to install an air purifier in each area of the room (for example, in each room or living room) despite the widespread use of general-purpose filters. In other words, first, the price of air purifiers is expensive, and the price is increasing depending on the function of the filter. Second, once an air purifier is purchased, the air purifier needs to be replaced with the development of other harmful air quality detection technology and filter technology. There is a cost loss of having to purchase the product again.

Patent Document 1: Korean Patent Registration No. 10-1686587 (registered on December 8, 2016) Patent Document 2: Korean Patent Registration No. 10-1152595 (registered on May 17, 2012)

The present invention was conceived to solve the above problems, and an object of the present invention is to provide an air cleaning system in which a single air cleaning control device can control a plurality of air purifiers respectively installed in a plurality of areas of the room. .

According to an embodiment of the present invention, an air cleaning system including an air purifier disposed one for each area of a plurality of areas of the room and an air cleaning control device for controlling each air purifier, each of the air purifiers, comprises a radon sensor. , An air quality measurement sensor having at least one of an ultrafine dust sensor, and a carbon monoxide sensor; An environment measuring sensor having at least one of an atmospheric pressure sensor, a temperature sensor, and a humidity sensor; At least one filter for removing or reducing radon and/or ultrafine dust in the air; And a driving fan configured to generate an air flow passing through the filter, wherein the air cleaning control device includes: a data storage unit for storing measurement data of the air quality measurement sensor and the environment measurement sensor received from each air purifier; And a control unit for controlling the operation of each air purifier based on the data stored in the data storage unit, wherein the air cleaning control device is configured to wirelessly communicate with each of all air purifiers and control each air purifier. It provides an air cleaning system.

According to an embodiment of the present invention, an air purifier installed in each area of the room (each room or living room, etc.) can be manufactured with a simple structure, and a plurality of air purifiers thus manufactured can be integrated and controlled with a single air cleaning control device. It is possible to expand the area for air cleaning without a large cost burden.

For example, an air cleaning control device can be installed in the living room and integrated and controlled, and an air purifier can be provided in each room. In this case, an additional air purifier can be introduced at about 1/3 of the price of an existing air purifier based on the same area. In addition, for example, an air purifier according to the present invention may be installed in each classroom of a school, and an air purification control device may be installed in a school office or an administrative office, so that the air purifier of each class can be integrated and controlled with a single air cleaning control device according to the degree of risk.

In addition, in the case of conventional air purifiers, there is a problem of having to purchase the air purifier again when there is a required air purifying condition, that is, a newly developed filter. In addition, since the setting or updating of the control algorithm accordingly needs only for one air cleaning control device, replacement or update of parts can be easily performed and cost can be saved.

1 is a diagram illustrating an air cleaning system according to an embodiment of the present invention;
2 is a block diagram of an air purifier according to an embodiment;
3 is a block diagram of an air cleaning control device according to an embodiment;
4 and 5 are flowcharts illustrating the operation of the air cleaning control apparatus according to an embodiment.

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the drawings of the present specification, values such as length, thickness, and width of components may be exaggerated and displayed for effective description of technical content.

In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprise" and/or "comprising" does not exclude the presence or addition of one or more other components.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, a number of specific contents have been prepared to explain the invention in more detail and to aid understanding. However, a reader who has knowledge in this field enough to understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not significantly related to the invention are not described in order to avoid confusion in describing the invention.

1 shows an air cleaning system according to an embodiment of the present invention. Referring to the drawings, the air cleaning system according to an exemplary embodiment may include a plurality of air purifiers 100 installed indoors and one air cleaning control device 200 for integrated control thereof.

As shown, when the room is divided into several areas (eg, a plurality of rooms), each of the plurality of air purifiers 100 may be disposed in each area (that is, each room), and the air cleaning control device 200 It can be installed in any place indoors (for example, a living room).

The plurality of air purifiers 100 and the air cleaning control device 200 may communicate wirelessly. For example, each air purifier 100 and the air cleaning control device 200 are configured to communicate by one of wireless communication methods such as LoRa, Bluetooth, ZigBee, and Wi-Fi.

Each air purifier 100 includes at least one measuring device (sensor) for measuring the concentration of radon, ultrafine dust, and carbon monoxide, a filter device for purifying indoor air, and a communication unit for wireless communication with the air cleaning control device 200. Equipped. The air cleaning control device 200 receives measurement data from each air purifier 100 at a predetermined period of time or every occurrence of a predetermined event, and when at least one of radon, ultrafine dust, and carbon monoxide is at a dangerous concentration, the air purifier 100 ), or a ventilation device that ventilates the indoor area in which the air purifier 100 is placed, and notifies the user with a warning or alarm about the concentration of radon, ultrafine dust, and/or carbon monoxide with a display or sound. Can be configured to

According to such an embodiment of the present invention, since one air cleaning control device 200 can control a plurality of air purifiers 100 distributed in various indoor areas, respectively, the configuration of each individual air purifier 100 Manufacturing cost can be lowered. That is, since each air purifier 100 does not require a complex control algorithm or display for detecting harmful substances such as radon, ultrafine dust, and carbon monoxide, the manufacturing cost per unit of air purifier can be reduced. Can be used.

In addition, when a sensor for detecting various harmful substances such as ozone, nitrogen oxide, and volatile organic compounds (VOC) as well as radon, ultrafine dust, and carbon monoxide is added to each air purifier 100 as necessary, the air cleaning control device 200 ), only the control algorithm needs to be updated, so it is easy to expand the hazardous substance detection system.

2 is a block diagram of each air purifier 100 according to an embodiment. Referring to the drawings, each air purifier 100 includes a display unit 110, a transmission/reception unit 120, a filter device 130, and a plurality of measurement sensors 140 and 150.

The plurality of measurement sensors may be divided into an air quality measurement sensor 140 and an environment measurement sensor 150. The air quality measurement sensor 140 includes, for example, a radon sensor 141, an ultrafine dust sensor 142, and a carbon monoxide sensor 143, and measures the concentration of radon, ultrafine dust, and carbon monoxide, respectively, and transmits and receives measurement data. It can be transmitted to the air cleaning control device 200 through the unit 120. In addition, in an alternative embodiment, the air quality measurement sensor 140 may also include a sensor that detects other harmful substances such as ozone, nitrogen oxide, and volatile organic compounds (VOC).

The environmental measurement sensor 150 may include, for example, an atmospheric pressure sensor 151, a temperature sensor 152, and a humidity sensor 153, and these sensors measure atmospheric pressure, temperature, and humidity, respectively, and transmit and receive measurement data. It can be transmitted to the air cleaning control device 200 through (120).

The transmission/reception unit 120 is a functional unit for transmitting and receiving a control signal and a data signal between the air purifier 100 and the air cleaning control device 200. The transmission/reception unit 120 is configured to wirelessly communicate with the air cleaning control device 200 by one of wireless communication methods such as LoRa, Bluetooth, Zigbee, and Wi-Fi.

The filter device 130 is a device for purifying air in an indoor area in which the air purifier 100 is installed, and may include, for example, one or more filters and a driving fan. The filter consists of at least one filter that removes or reduces, for example, radon and/or ultrafine dust in the air. The drive fan is placed upstream or downstream of the filter to create airflow through this filter. In a preferred embodiment, the on/off operation of the driving fan is performed by the control of the air cleaning control device 200. That is, when the air cleaning control device 200 determines that air purification in the indoor area in which the air purifier 100 is installed is necessary based on the measured data of the air quality measurement sensor 140, the driving fan of the air purifier 100 is driven. So you can purify the air.

The display unit 110 is a device that displays the operation status of the air purifier 100 to the user, and may be implemented by known means such as a flashing lamp, LCD, LED, or in an alternative implementation, to the user. It can also be implemented as a speaker that notifies you of warnings or notifications by sound.

3 is a block diagram of an air cleaning control apparatus 200 according to an exemplary embodiment. Referring to the drawings, the air cleaning control device 200 according to an embodiment includes a control unit 210, a display 220, a transmission/reception unit 230, an air quality measurement sensor 240, an environment measurement sensor 250, and a filter device ( 260), and a data storage unit 270.

The display 220 may be implemented by known means such as LCD, LED, and touch screen, and may display the operating state of each air purifier 100 or measurement data of each indoor area to the user. When the display 220 is implemented as, for example, a touch screen, a user may input various user commands through the display 220 and transmit a user command accordingly to the controller 210.

The transmission/reception unit 230 is a functional unit for wireless communication with each air purifier 100 and may receive measurement data of each air purifier 100 and transmit a control signal to each air purifier 100.

The data storage unit 270 may be implemented as a storage medium such as a flash memory or a hard disk drive, and stores measurement data received from each air purifier 100. In addition, the data storage unit 270 may store a control algorithm for controlling each air purifier 100 and various set data required therefor.

The control unit 210 controls the operation of each air purifier 100 based on data stored in the data storage unit 270. In one embodiment, the control unit 210 may be implemented in hardware and/or software such as a processor and a memory. For example, a control algorithm for controlling the air purifier 100 is stored in the data storage unit 270. The controller 210 can operate by being loaded into the memory and executed by the processor.

In this way, the air cleaning control device 200 communicates with each of the plurality of air purifiers 100 and can perform a function of controlling each air purifier 100, but in addition to this, an indoor area in which the air cleaning control device 200 is installed. In this case, the air purification control device 200 may further include an air quality measurement sensor 240, an environment measurement sensor 250, and a filter device 260. The air quality measurement sensor 240 includes, for example, a radon sensor 241, an ultrafine dust sensor 242, and a carbon monoxide sensor 243, and the environment measurement sensor 250 is, for example, an atmospheric pressure sensor 251, a temperature sensor 252 ), and a humidity sensor 253. Since the operation of the filter device 260 based on the various sensors 240 and 250 and the measured data measured by the sensors is the same or similar to the operation of the air purifier 100 described with reference to FIG. 2, the description will be omitted. do.

In addition, the air purification control device 200 may be configured to communicate wirelessly or wiredly with a ventilation device installed in each indoor area in which each air purifier 100 is installed, and accordingly, the ventilation device in each indoor area is controlled. It can purify the indoor air.

4 and 5 are flowcharts illustrating the operation of the air cleaning control apparatus 200 according to an embodiment, in which the control unit 210 shows an indoor area in which the air purifier is installed based on measurement data of the air purifier 100. An exemplary method of purifying air is shown. In the illustrated embodiment, it is assumed that the air cleaning control device 200 communicates with any one of the plurality of air purifiers 100 to purify the air in an indoor area in which the air purifier is installed.

Referring to the drawings, in step S10, the air cleaning control apparatus 200 receives measurement data from the air purifier 100. At this time, the measurement data is, for example, radon concentration, ultrafine dust concentration, and carbon monoxide concentration data measured by the radon sensor 141, the ultrafine dust sensor 142, and the carbon monoxide sensor 143, respectively, and the atmospheric pressure sensor 151 ), the temperature sensor 152, and the humidity sensor 153 may include atmospheric pressure, temperature, and humidity data measured, respectively. In an exemplary embodiment, the air purifier 100 may measure such data at a predetermined time period and transmit it to the air cleaning control device 200 or whenever a specific event occurs.

Then, in step (S11), the control unit 210 of the air cleaning control device 200 calculates the difference (deviation) between the average atmospheric pressure and the measured atmospheric pressure, and in steps (S12, S13, S14) this deviation is calculated as a predetermined reference deviation. Compare. Here, the'average atmospheric pressure' means the average atmospheric pressure in the indoor area in which the air purifier 100 is installed, for example, for a predetermined time (for example, 24 hours or one week) while the radon concentration is within the normal range. It can be set as the average value of the measured atmospheric pressure. In general, the higher the radon concentration, the higher the atmospheric pressure. Therefore, if the measured atmospheric pressure at a certain point is compared with the average atmospheric pressure and the measured atmospheric pressure is greater than the average atmospheric pressure by a predetermined deviation or more, it can be assumed that the radon concentration is high.

Therefore, in the present invention, first, this deviation value is compared with a predetermined first reference deviation RP1 (step S12), and if it is greater than the first reference deviation RP1, it is determined that the radon concentration is above the normal range, and the corresponding air purifier 100 To ventilate the room by operating the filter device 130 of or controlling the ventilation device in the room in which the air purifier is installed (step S21 or S22).

At this time, for example, if the deviation value is greater than the first reference deviation (RP1) and less than the second reference deviation (RP2), the display unit 110 of the air purifier 100 turns on a lamp to notify, for example,'caution' and ventilate/filter. The operation is performed (steps S13 and S21), and when the deviation value is greater than the second reference deviation RP2, a lamp indicating'danger' of the display unit 110 may be turned on and a ventilation/filter operation may be performed (step S14. And S22).

If the deviation value in step S12 is less than or equal to the first reference deviation RP1, the process proceeds to step S15 to read the radon concentration measurement data R1. At this time, the radon concentration measurement data may be data included in the measurement data received from the air purifier 100 in step S10, or alternatively may be received from the air purifier 100 when executing step S15. .

Thereafter, if the radon measurement data R1 is smaller than the first reference concentration RR1 in step S16, it is determined that the radon concentration is in the normal range, and the lamp or ventilation/filter operation of the air purifier 100 is stopped (S20). ). For example, the first reference concentration RR1 may be set to 100 Bq/m 3. If the radon measurement data R1 is greater than the first reference concentration RR1 and less than the second reference concentration RR2, the radon concentration is in the normal range, but it is determined that it is a degree that requires attention, and the display unit of the air purifier 100 ( 110) can be turned on and the ventilation/filter operation can be performed (steps S17 and S21), and if the radon measurement data R1 is greater than the second reference concentration RR2, 'It is possible to turn on the lamp and perform a ventilation/filter operation (steps S18 and S22). The second reference concentration RR2 may be set to an arbitrary value, and since the current allowable standard value of radon in the air in daily life is 148 Bq/m 3, in an embodiment, the second reference concentration RR2 may be set to this value.

Meanwhile, in some cases, since the radon concentration measured value may be affected by the indoor temperature or humidity, the step of determining whether the temperature and/or humidity is within a preset reference value in an alternative embodiment (S19) may be further included. have. In the case of including this step (S19), as shown, when the radon measurement data R1 is less than or equal to the first reference concentration RR1, it is determined whether the temperature and/or humidity is less than or equal to the reference value (step S19), and if it is less than the reference value, air When the operation of the purifier 100 or the ventilation device is stopped and the value is greater than the reference value, it may be configured to perform a ventilation/filter operation with the attention lamp lighting (S21).

As described above, according to an embodiment of the present invention, the steps (S12, S13, S14) of comparing the average atmospheric pressure and the measured atmospheric pressure are first performed using the principle that the measured atmospheric pressure increases according to the radon concentration, and the air purifier according to the result. B. Because the ventilation system is operated, there is an advantage of responding by reacting more quickly to an increase in radon concentration compared to the case of using only a radon sensor.

Thereafter, as shown in FIG. 5, the process proceeds to step S30 to compare the humidity measurement data and the reference humidity RH. At this time, the humidity measurement data may be data included in the measurement data received from the air purifier 100 in step S10, or alternatively may be data to be received from the air purifier 100 when executing step S30. . In general, ultrafine dust is highly affected by humidity, and if the humidity measurement data is higher than the standard humidity (RH), accurate ultrafine dust measurement is not possible. I can. Such a message may be displayed by, for example, a lamp of the display unit 110 of the air purifier 100 or notified to the user through a speaker. In addition, in an exemplary embodiment, the air cleaning control device 200 may operate an indoor ventilation device or a dehumidifying device in which the air purifier 100 is installed together with a message display (step S32).

If the humidity measurement data is less than the reference humidity (RH), the ultrafine dust measurement data D1 is received (step S33), and the ultrafine dust measurement data D3 calculated based on the measurement data D1 and the reference concentration ( RD) is compared (step S35). Here, the measurement data D1 may be data included in the measurement data received from the air purifier 100 in step S10, or alternatively, data to be received from the air purifier 100 when executing step S33. have. The measurement data D3 may have the same value as the measurement data D1, or a value obtained by measuring the measurement data D1 for a predetermined time (eg, 24 hours) and an average. As a result of the comparison in step S33, if the ultrafine dust measurement data D3 is greater than or equal to the reference concentration RD, the'Dangerous' lamp of the air purifier 100 is turned on and the driving fan is driven, or ventilation of the area where the air purifier is installed. The device is driven (step S36).

Meanwhile, if necessary, the ultrafine dust may be counted by particle size and used to improve the performance of the filter, and in an alternative embodiment, a step (S34) of counting the ultrafine dust by particle size may be added for this purpose. In the case of including this step (S34), as shown in Fig. 5, the ultrafine dust is, for example, the number of particles of PM0.5 or less (Count1), the number of particles of PM1.0 or less (Count2), and particles of PM2.5 or less. It can be counted by dividing each by the number (Count3), and the total number of particles (D2 = Count1 + Count2 + Count3) can be calculated.

Next, in step S40 of FIG. 5, the carbon monoxide measurement data C1 is taken, and the measurement data C1 is compared with the reference concentration RC of carbon monoxide (step S41). At this time, the carbon monoxide measurement data C1 may be data included in the measurement data received from the air purifier 100 in step S10, or alternatively, data to be received from the air purifier 100 when executing step S40. May be. As a result of the comparison in step S41, if the carbon monoxide measurement data C1 is greater than or equal to the reference concentration RC, the ventilation device in the area where the air purifier 100 is installed may be driven for a predetermined time (step S42).

After that, when the entire step is completed, all measurement data, such as radon measurement data (R1), ultrafine dust measurement data (D1, D2, D3), ultrafine dust count values for each particle size (Count1, Count2, Count3), and carbon monoxide measurement Data such as data C1 is stored in the data storage unit 270, and the above-described steps of FIGS. 4 and 5 may be repeated for air purifiers other than the air purifier.

As described above, those of ordinary skill in the field to which the present invention pertains can understand that various modifications and variations are possible from the description of this specification. Therefore, the scope of the present invention is limited to the described embodiments and should not be defined, and should be defined by the claims to be described later, as well as those equivalent to the claims.

100: air purifier
110: display
120, 230: transmitting and receiving unit
130, 260: filter device
140, 240: air quality measurement sensor
150, 250: environmental sensor
200: air cleaning control device
220: display
270: data storage unit

Claims (8)

An air cleaning system comprising an air purifier 100 disposed one for each area of a plurality of indoor areas and an air cleaning control device 200 for controlling each air purifier,
Each air purifier 100,
An air quality measurement sensor 140 having at least one of a radon sensor, an ultrafine dust sensor, and a carbon monoxide sensor;
An environmental measurement sensor 150 having at least one of an atmospheric pressure sensor, a temperature sensor, and a humidity sensor;
At least one filter for removing or reducing radon and/or ultrafine dust in the air; And
Includes; a driving fan configured to generate an air flow through the filter,
The air cleaning control device 200,
A data storage unit 270 for storing measurement data of the air quality measurement sensor and the environment measurement sensor received from each air purifier; And
Includes; a control unit 210 for controlling the operation of each air purifier based on the data stored in the data storage unit,
And the air cleaning control device is configured to wirelessly communicate with each of all air purifiers and to control each air purifier. The method of claim 1,
The air quality measurement sensor includes a radon sensor, an ultrafine dust sensor, and a carbon monoxide sensor,
The air cleaning system, characterized in that the environmental measurement sensor comprises an atmospheric pressure sensor, a temperature sensor, and a humidity sensor. The method of claim 2,
For each air purifier, the control unit of the air purifier control unit, when the difference between the measured atmospheric pressure and the average atmospheric pressure in the measured data exceeds a predetermined reference deviation (RP1), drives the driving fan of the air purifier or An air cleaning system, characterized in that controlling to drive a ventilation device in an area where an air purifier is installed. The method of claim 3,
If the difference is less than or equal to the reference deviation, the control unit of the air cleaning control device drives the driving fan of the air purifier or drives the air purifier when the measured value of the radon concentration exceeds a predetermined reference concentration RR1. The air cleaning system, characterized in that for controlling to drive the ventilation device and controlling to stop the operation of the driving fan or the ventilation device when the reference concentration RR1 is not exceeded. The method of claim 4,
The predetermined average atmospheric pressure is an average value of atmospheric pressure measured for a predetermined time in the region while the radon concentration in the installation region of the air purifier is less than or equal to the reference concentration RR1. The method of claim 4,
The control unit of the air purifier control unit, if the humidity measurement value of the measurement data of the air purifier is less than or equal to a predetermined reference humidity (RH) and the measurement value of ultrafine dust (D3) is higher than or equal to a predetermined reference concentration (RD), An air cleaning system comprising controlling to drive a driving fan or to drive a ventilation device in an area in which the air purifier is installed. The method of claim 6,
The ultrafine dust measurement value (D3) is an air cleaning system, characterized in that the 24-hour average value of the measurement value measured by the ultrafine dust sensor. The method of claim 6,
The air cleaning system, characterized in that the control unit of the air purifier control unit controls to drive the ventilation unit in the area where the air purifier is installed when the carbon monoxide measurement value of the measurement data of the air purifier is higher than a predetermined reference concentration (RC). .

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