KR20210090037A - Air purification system having air cleaners and control apparatus and method thereof - Google Patents

Abstract

The present invention relates to an air purification system having a plurality of air purifiers and a monitoring device, and a control method thereof. The monitoring device issues an alarm for radon when an absolute difference (|ΔP|) between second atmospheric pressure measured by a second air purifier and first atmospheric pressure measured by a first air purifier among the plurality of air purifiers is at least a preset first reference difference value (_p1), and an air purification function of the first air purifier can be operated when the alarm is issued.

Description

An air cleaning system having a plurality of air cleaners and a control device, and a control method therefor {AIR PURIFICATION SYSTEM HAVING AIR CLEANERS AND CONTROL APPARATUS AND METHOD THEREOF}

The present invention relates to an air cleaning system including a plurality of air cleaners and a control device and a control method therefor, and more particularly, to a control device communicating with the plurality of air cleaners and a control method thereof.

Although air purifiers are widely available, it is difficult to install them in every room in terms of space, cost, and management. This is because the price of air purifiers is expensive, and the price gradually increases according to the function of the filter. In addition, once an air purifier is purchased, it may be costly to purchase again even though it has to be replaced due to the development of other harmful air quality detection technology and filter technology. For specific air purification that occurs in a specific place, another air purifier must be purchased and installed. Even for air purification in a place that is not affected by the installed product, you must purchase and install an additional or move the purchased air purifier from room to room to operate it.

In addition, it takes a long time to measure the concentration of radon gas, and various errors occur in the measurement depending on the surrounding environment.

US 10-1665385 B1 US 10-2019-0048475 A US 10-2017-0014266 A

The present invention connects an air purifier equipped with a control device and an air purifier without a control device into one network, so that the air purifier can be placed in various places at low cost, and parts can be easily replaced, and the expansion of the purification filter is facilitated. The purpose of this is to provide an air cleaning system with improved management convenience.

In addition, another object of the present invention is to increase the reliability in measuring the radon gas concentration.

According to an embodiment of the present invention, there is provided an air cleaning control method of a control device communicating with the plurality of air cleaners provided in an air cleaning system including a plurality of air cleaners disposed for each division in the same area, the plurality of air cleaners. Receiving a first environmental variable having a first atmospheric pressure (P1), a first temperature (T1), and a first humidity (H1) measured by the first air purifier of the; The magnitude of the pre-stored average annual atmospheric pressure or the absolute difference (|ΔP|) between the second atmospheric pressure measured by the second air purifier among the plurality of air purifiers and the first atmospheric pressure and the preset first reference difference value (_p1) comparing; issuing an alarm for radon when the absolute difference (|ΔP|) is greater than or equal to the first reference difference value (_p1); and enabling at least an air cleaning function of the first air purifier to operate when the alarm is issued.

In addition, when the absolute difference (|ΔP|) is smaller than the first reference difference value (_p1), receiving the first radon concentration (R1) measured from the first air purifier; and issuing the radon alarm when the first radon concentration R1 is greater than or equal to a preset first reference radon concentration value _r1.

In addition, when the first radon concentration (R1) is less than the first reference radon concentration value (_r1), comparing the size of the first humidity (H1) and a preset first reference humidity value (_h1); and when the first humidity (H1) is equal to or greater than the first reference humidity value (_h1), issuing a caution alert informing of caution about radon;

The method may further include stopping the operation of the first air purifier when the first humidity H1 is less than the first reference humidity value _h1.

In addition, the step of issuing a radon alert may include issuing a caution alert informing of caution about radon when the absolute difference (|ΔP|) is smaller than a preset second reference difference value (_p2); and when the absolute difference (|ΔP|) is greater than or equal to the second reference difference value (_p2), issuing a hazard warning notifying a risk to radon; provided, wherein the second reference difference value (_p2) is Preferably, it is larger than the first reference difference value _p1.

In addition, the step of issuing a radon alert may include: issuing a caution alert to notify caution about radon when the first radon concentration (R1) is smaller than a preset second reference radon concentration value (_r2); and when the first radon concentration (R1) is equal to or greater than the second reference radon concentration value (_r2), issuing a danger alert informing of a danger to radon.

In addition, when the first humidity H1 is greater than or equal to a preset second reference humidity value _h2, the method may further include a step of guiding to lower the humidity.

In addition, receiving the first ultrafine dust concentration (D1) and the first carbon monoxide concentration (C1) measured from the first air purifier; issuing an alert for ultrafine dust when the first ultrafine dust concentration D1 is greater than or equal to a preset first reference dust concentration _d1; and when the first carbon monoxide concentration (C1) is equal to or greater than a preset first reference carbon monoxide concentration (_c1), issuing an alarm informing of a danger to carbon monoxide.

A control device communicating with the plurality of air cleaners provided in an air cleaning system having a plurality of air cleaners arranged for each division in the same area according to an embodiment of the present invention may include a first air cleaner among the plurality of air cleaners. a communication unit for receiving a first environmental variable having a first atmospheric pressure, a first temperature, and a first humidity measured in; and an absolute difference (|ΔP|) between the previously received average atmospheric pressure or the second atmospheric pressure measured by a second air purifier among the plurality of air purifiers and the first atmospheric pressure is greater than or equal to a preset first reference difference value (_p1) a control unit that issues an alarm for radon and activates the air cleaning function of the first air purifier when the alarm is issued.

The present invention can reduce the burden of adding or replacing an air purifier by integrating the control air purifier with other air purifiers, and can select and apply a necessary filter according to the purpose of air purifying.

In addition, it is possible to improve the reliability of the measurement value and shorten the measurement result time so that the cleaning function is operated as quickly and accurately as possible.

1 is a block diagram of an air cleaning system according to an embodiment of the present invention;
Figure 2 is a block diagram of the air purifier of Figure 1,
Figure 3 is a block diagram of the control device of Figure 1,
4 to 6 are flowcharts of an air cleaning control method of a control device of an air cleaning system according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Also, when the first component and the second component on the network are connected or connected, it means that data can be exchanged between the first component and the second component by wire or wirelessly.

In addition, the suffixes "module" and "part" for the components used in the following description are given simply in consideration of the ease of writing the present specification, and do not give a particularly important meaning or role by themselves. Accordingly, the terms “module” and “unit” may be used interchangeably.

When these components are implemented in an actual application, two or more components may be combined into one component, or one component may be subdivided into two or more components as needed. The same reference numerals are assigned to the same or similar components throughout the drawings, and detailed descriptions of the components having the same reference numerals may be omitted instead of being replaced with the descriptions of the above-described components.

Furthermore, the invention encompasses all possible combinations of the embodiments indicated herein. Various embodiments of the present invention are different, but not mutually exclusive. One embodiment of a particular shape, structure, function, and characteristic described herein may be embodied in another embodiment. For example, components mentioned in the first and second embodiments may perform all functions of the first and second embodiments.

1 is a block diagram of an air cleaning system according to an embodiment of the present invention, FIG. 2 is a block diagram of the air cleaner of FIG. 1, and FIG. 3 is a block diagram of the control device of FIG. to be. Referring to the respective drawings, from the viewpoint of the components according to the function of each device, it is as follows.

Referring to FIG. 1 , the air cleaning system according to the present embodiment may include a control device 10 and a plurality of air cleaners 20 , 22 , ... .

The control device 10 may receive measurement data from a plurality of air purifiers 20 , 22 , ... and transmit a control command based on the measurement data.

The plurality of air purifiers 20, 22, ... may be respectively disposed in the same area, such as a house, an office, a school, or the like, for each compartment. For example, it may be arranged in each room in the case of a house and in each classroom in the case of a school.

The air purifier 20 may purify or ventilate the air. The air purifier 20 may be operated by a control command received from the control device 10 or a user operation.

Referring to FIG. 2 , the air purifier 20 includes a cleaning unit 270 , an air quality measurement unit 280 , an environment measurement unit 290 , a local communication unit 220 , a local operation unit 230 , and a local output unit 250 . , a local storage unit 260 , and a local control unit 210 .

The purifier 270 may purify air, such as air purification, radon removal, and/or ventilation.

The purifier 270 may inhale the surrounding air to filter out harmful air (fine dust, bacteria, etc.) and discharge the cleaned air to the outside of the device. The dust filtering method of the air purifier 20 includes a method of adsorbing dust to water like a wet mop, a method of filtering dust while passing through a filter, and a method of collecting and removing dust using electrical properties (charged negative ion particles). Either way, it doesn't matter.

Radon, a radioactive substance that is always present in nature, is present. Therefore, it is preferable to remove it. Accordingly, the cleaning unit 270 may adsorb radon using activated carbon.

Carbon monoxide, which is fatal to the human body, is frequently generated as one cause of asphyxiation, and it is desirable to remove it. Accordingly, it is preferable that the cleaning unit 270 has a ventilation function for introducing external air into the interior.

The cleaning unit 270 may perform any one function of air purification, radon removal, and ventilation, or may perform all functions at the same time. In addition, the cleaning unit 270 may selectively perform functions such as filter replacement according to the user's need among air purification, radon removal, and ventilation functions.

The air quality measurement unit 280 may include a radon measurement module 281 , a dust measurement module 283 , and a carbon monoxide measurement module 285 .

The radon measurement module 281 may measure radon in the area where the air purifier 20 is disposed. The dust measuring module 283 may measure fine dust or ultra-fine dust in the area where the air purifier 20 is disposed. The carbon monoxide measurement module 285 may measure carbon monoxide in the area where the air purifier 20 is disposed.

The radon concentration (R), the dust concentration (D), and the carbon monoxide concentration (C) measured by the air quality measurement unit 280 may be transmitted to the control device 10 through the local communication unit 220 .

The environment measurement unit 290 may measure environmental variables (atmospheric pressure (P), humidity (H), and temperature (T)). To this end, the environment measurement unit 290 may include an atmospheric pressure measurement module 291 , a humidity measurement module 293 , and a temperature measurement module 295 .

The atmospheric pressure measurement module 291, the humidity measurement module 293, and the temperature measurement module 295 each measure the atmospheric pressure (P), humidity (H), and temperature (T) of the area in which the air purifier 20 is disposed. each can be measured.

The air quality measurement unit 280 and the environment measurement unit 290 may omit some of the aforementioned elements or measure additional elements, and may measure only necessary elements.

The air purifier 20 may be used by replacing only the filter necessary for cleaning of the purifying unit 270 and the air quality measuring unit 280/environment measuring unit 290 and a detection element required for measurement. That is, the air purifier 20 can be expanded according to the development of a filter for purifying harmful substances or the need for measurement for sensing harmful substances.

The local communication unit 220 may send and receive data to and from the control device 10 . The local communication unit 220 may use wired/wireless communication technology. Various technologies may be applied to the wireless communication technology.

The local communication unit 220 may use a short-distance communication technology such as Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), or ZigBee. The local communication unit 220 may apply a wireless Internet technology and/or a mobile communication technology using a mobile communication network.

The local communication unit 220 may receive a control command for controlling the operation of the air purifier 20 from the control device 10 . The local communication unit 220 may transmit various measurement data, which will be described later, to the control device 10 .

The local operation unit 230 may simultaneously or individually operate or turn off various cleaning functions of the cleaning unit 270 based on a user input.

The local manipulation unit 230 generates input data input by the user to control the operation of the air purifier 20 . The local manipulation unit 230 may include a keypad, a dome switch, a touch pad (static pressure/capacitance), and the like, through which a command or information can be input by a user's push or touch manipulation. In addition, the local manipulation unit 230 may be configured as a jog wheel or a jog method for rotating a key, a method for manipulating like a joystick, or a finger mouse. In particular, when the touch pad forms a layer structure with the local display module 251 to be described later, it may be referred to as a touch screen. The local manipulation unit 230 may receive an image command such as a user's voice command or a gesture through an input means such as a camera or a microphone, and may control an operation based on the received image command.

The local output unit 250 may output an audio signal, a video signal, or an alarm signal. The local output unit 250 may include a local display module 251 and a local sound output module 253 to display a video signal or output an audio signal.

As described above, when the local display module 251 and the touchpad form a layered structure to form a touch screen, the local display module 251 is an input device capable of inputting information by a user's touch in addition to an output device. can also be used.

The local storage unit 260 may store a program for processing and control of the local control unit 210 , and may perform a function for temporarily storing input or output data (signals).

The local storage unit 260 may include a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (eg, SD or XD memory). , RAM, and ROM may include at least one type of storage medium.

The local control unit 210 may control the overall operation of the air purifier 20 by generally controlling the operation of the respective parts of the air purifier 20 .

Referring to FIG. 3 , the control device 10 may include a control unit 110 , a communication unit 120 , a manipulation unit 130 , an interface unit 140 , an output unit 150 , and a storage unit 160 . .

The communication unit 120 may exchange data with the air purifier 20 . For details of the communication unit 120 , refer to the description of the local communication unit 220 of FIG. 2 .

The manipulation unit 130 generates input data input by the user to control the operation of the control device 10 . For details of the manipulation unit 130 , refer to the description of the local manipulation unit 230 .

The output unit 150 may output an audio signal, a video signal, or an alarm signal. For details of the output unit 150 , refer to the description of the local output unit 250 .

The storage unit 160 may store a program for processing and control of the control unit 110 , and may perform a function for temporarily storing input or output data (signals). For details of the storage unit 160 , refer to the description of the local storage unit 260 .

The interface unit 140 may function as an interface with all external devices connected to the control device 10 . Examples of the external device connected to the control device 10 include an external power source, a wired/wireless data port, a memory card, a SIM (Subscriber Identification Module) card, a card socket such as a UIM (User Identity Module) card, There are audio I/O (Input/Output) terminals, video I/O (Input/Output) terminals, and earphones. The interface unit 140 may receive data or receive power from such an external device and transmit it to each component inside the control device 10 , and may allow the data inside the control device 10 to be transmitted to the external device. .

The control unit 110 may control the overall operation of the control device 10 by generally controlling the operation of the respective units.

The control unit 110 transmits a first environmental variable including the first atmospheric pressure P1, the first temperature T1, and the first humidity H1 measured by the first air purifier among the plurality of air purifiers to the communication unit 120 , and the first environment variable may be stored in the storage unit 160 .

The control unit 110 is configured to control an absolute difference (|ΔP|) between the pre-stored average annual atmospheric pressure or a second atmospheric pressure measured by a second air purifier among the plurality of air purifiers and the first atmospheric pressure and a preset first reference difference value _p1 ) or a predetermined second reference difference value _p2 may be compared.

The controller 110 may compare the magnitude of the first radon concentration R1 with a first preset reference radon concentration value _r1 or a second preset reference radon concentration value _r2.

The controller 110 may compare the first humidity H1 with a first preset reference humidity value _h1 or a second preset reference humidity value _h2.

The control unit 110 may issue an alert of a caution level or a danger level for radon according to the determination result. The issued alert may be notified by voice or screen through the output unit of the control device 10 . The control unit 110 may notify the alarm to a previously registered mobile communication terminal of a user or an administrator through the communication unit 120 , in particular, a mobile communication module. The controller 110 may output an alarm from at least the first air purifier 20 among the plurality of air purifiers.

Referring to FIG. 3 , the control device 10 may further include a cleaning unit 270 , an air quality measurement unit 280 , and an environment measurement unit 290 . For details on the purifying unit 270, the air quality measuring unit 280, and the environment measuring unit 290 of the control device 10, the purifying unit 270 of the air purifier 20, the air quality measuring unit 280, and the description of the environment measurement unit 290 .

In the present embodiment, it is preferable that the measurement data measured by the air quality measurement unit 280 and the environment measurement unit 290 of the control device 10 are directly transmitted to the control unit 110 without going through the communication unit 120 .

Although the air purifier is a filter at its core, it includes various control methods for air cleaning or the ability to manipulate various measurement data to operate the air cleaning function, so it is expensive to deploy in various compartments in the same area. . In addition, in the case of purchasing and disposing air purifiers independent of each other, data measured in different sections in the same area may not be used by collecting data. Accordingly, the present control device 10 has the function of the air purifier 20 and may be advantageous in terms of cost and management, and it is possible to use data collected from various sections to predict when an accurate air cleaning function is required.

The control device 10 is preferably mounted on any one of a plurality of air purifiers rather than being implemented as a separate terminal, server, or computer. It may be understood that the control device is equipped with the function of an air purifier, or may be understood as an air purifier for control in which the function of the control device is mounted on the air purifier.

That is, the air cleaning system has at least one function of a radon and fine dust air purifier capable of multi-point simultaneous control and a control air purifier (control device 10) with a carbon monoxide alarm function and an air purification/radon removal/ventilation function. It can be interpreted as including a plurality of air purifiers having an environmental measurement function and lowering the unit price.

4 to 6 are flowcharts of an air cleaning control method of a control device of an air cleaning system according to an embodiment of the present invention. Reference is made to FIGS. 1 to 3 .

For convenience of explanation in this embodiment, the control device 10 will be described for a control method during communication with the first air purifier 20, which is one of the plurality of air purifiers 20, 22, ... do.

4 and 5 , the control device 10 includes a first atmospheric pressure P1, a first temperature T1, and a first humidity H1 measured by the first air purifier 20. 1 It is possible to receive an environment variable (S310). The control device 10 may receive these environmental variables not only from the first air purifier 20 but also from other air purifiers.

The control device 10 may store the average average atmospheric pressure or atmospheric pressure measured by an air purifier other than the first air purifier 20 among the plurality of air purifiers in the storage unit 160 .

The average annual atmospheric pressure is sufficient as the average annual atmospheric pressure in the administrative district that includes the area. The average annual atmospheric pressure may be set by an administrator or received and stored from an external server such as the Meteorological Administration.

The control device 10 may set and store the average atmospheric pressure of atmospheric pressures measured by other air purifiers as the second atmospheric pressure P2. The second atmospheric pressure P2 may be an atmospheric pressure measured by any second air purifier 22 .

The control device 10 provides a first absolute difference (|ΔP1|) between the first atmospheric pressure (P1) and the pre-stored annual average atmospheric pressure and a second absolute difference ((|) between the first atmospheric pressure (P1) and the second atmospheric pressure (P2) ΔP2|)), the larger of the first and second absolute differences |ΔP1| and |ΔP2|) may be stored as the absolute difference (|ΔP|).

The control device 10 may compare the magnitude of the absolute difference |ΔP| with the preset first reference difference value _p1 ( S320 ).

When the absolute difference (|ΔP|) is greater than or equal to the first reference difference value _p1, the control device 10 may issue an alert for radon (S400). The alarm may be notified by voice/screen, or the like, and an alarm may be generated in any one or more of the control device 10 and the plurality of air purifiers.

The existing radon measurement and display method is installed in an arbitrary location, and the first average measured value is reflected after 24 to 48 hours, and the average value is displayed at an interval of 1 hour thereafter. However, this method cannot be an accurate measurement method for radon, which has the property of increasing atmospheric pressure by itself while being affected by temperature, humidity, and atmospheric pressure.

If the measured atmospheric pressure is high, it can be determined that the radon concentration in the area is high. This method can reduce the time required for the initial measurement of radon gas, predict a region or place where the concentration of radon gas is high, and increase prediction accuracy.

It is preferable that at least the air cleaning function of the first air purifier 20 is activated when an alarm is issued. In this case, the air cleaning function may be activated when all alarms to be described later are issued.

In particular, in this embodiment, it is more preferable that the radon removal function of the air cleaning function is necessarily operated. The absolute difference (|ΔP|) is due to the difference between the first and second atmospheric pressures (P1, P2), the second atmospheric pressure (P2) is the measured (including correction) value of the second air purifier 22, and the second When the two atmospheric pressure (P2) is greater than the first atmospheric pressure (P1), it is preferable that the air cleaning function of the second air purifier 22 is operated.

When an alert is issued according to the atmospheric pressure difference (S400, A), the control device 10 may determine whether the absolute difference |ΔP| is smaller than a preset second reference difference value _p2 (S410). The second reference difference value _p2 is set to be greater than the first reference difference value _p1. The first and second reference values _p1 and _p2 may be values obtained through experiments or tests. The first reference difference value _p1 may be any one of 4 to 6 hPa, and is preferably 5 hPa. The second reference difference value _p2 may be 9 to 11 hPa, preferably 10 hPa.

When the absolute difference (|ΔP|) is smaller than the preset second reference difference value _p2, the control device 10 may issue a caution warning of the degree of attention to radon (S430). When the absolute difference (|ΔP|) is greater than or equal to the second reference difference value _p2, a danger warning of a degree of danger that is more dangerous than caution about radon may be issued (S440). It is desirable to set the alarm level differently because the larger the atmospheric pressure difference, the more radon gas is being generated. An alert may be notified to an administrator or a user through the output unit 150 of the control device 10 . The alert may be notified to an administrator or a user's mobile terminal through the communication unit 120 , in particular, a mobile communication module.

When the absolute difference (|ΔP|) is smaller than the first reference difference value _p1 , the control device 10 receives the first radon concentration R1 measured by the first air purifier 20 from the air purifier 20 . can be received (S330).

The first air purifier 20 may compare the size of the first radon concentration R1 with the preset first reference radon concentration value _r1 ( S340 ).

When the first radon concentration R1 is equal to or greater than the first reference radon concentration value _r1, the first air purifier 20 may issue an alert for radon (S400).

When an alarm is issued according to the radon concentration (S400, B), the control device 10 may compare the size of the first radon concentration R1 and the preset second reference radon concentration value _r2 (S420). The second reference radon concentration value _r1 should be greater than the second reference radon concentration value _r1. The first and second reference radon concentration values _r1 and _r2 may notify an alarm by varying the degree of danger as follows. The first reference radon concentration value (_r1) may be 90 to 110 becquerels (Bq/m3), preferably 100 becquerels. The second reference radon concentration value _r2 may be 138 to 158 becquerels, preferably 148 becquerels.

When the first radon concentration (R1) is smaller than the second reference radon concentration value (_r2), the control device 10 may issue a caution alert indicating caution about radon (S430).

When the first radon concentration (R1) is equal to or greater than the second reference radon concentration value (_r2), the control device 10 may issue a danger alert informing of the danger of radon (S440).

When the first radon concentration R1 is smaller than the first reference radon concentration value _r1, the control device 10 may compare the size of the first humidity H1 with the preset first reference humidity value _h1. (S350).

When the first humidity (H1) is equal to or greater than the first reference humidity value (_h1), the control device 10 may issue a caution alert indicating caution about radon (S400, C, and S430). Since accurate measurement of radon concentration cannot be made when humidity is high, it is possible to prevent possible radon risk by notifying the user of a warning level of caution.

When the first humidity H1 is less than the first reference humidity value _h1, the control device 10 may stop the first air purifier 20 from operating the first air purifier (S360). In the case of low atmospheric pressure difference / radon concentration / humidity, since the measured radon concentration is reliable, the air cleaning function of the first air purifier 20, in particular, the radon absorption function can be stopped to reduce unnecessary energy and filter consumption. .

Referring to FIG. 6 , the control device 10 may compare the sizes of the first humidity H1 and the preset second reference humidity value _h2 ( S510 ).

When the first humidity H1 is equal to or greater than the second reference humidity value _h2, the control device 10 may guide to lower the humidity (S520). By lowering the humidity, a reliable radon concentration value and/or fine dust concentration can be measured in the next cycle.

The control device 10 may receive the first ultrafine dust concentration D1 measured from the first air purifier 20 ( S530 ). The control device 10 may determine whether the first ultrafine dust concentration D1 is equal to or greater than a preset first reference dust concentration _d1 ( S540 ). When the first ultrafine dust concentration D1 is equal to or greater than the first reference dust concentration _d1, the control device 10 may issue an alert for the ultrafine dust (S550).

The control device 10 may receive the first carbon monoxide concentration C1 from the first air purifier 20 (S560). The control device 10 may determine whether the first carbon monoxide concentration C1 is equal to or greater than a preset first reference carbon monoxide concentration _c1 ( S570 ). When the first carbon monoxide concentration (C1) is equal to or greater than the first reference carbon monoxide concentration (_c1), the control device 10 may issue an alarm informing of a danger to carbon monoxide. The determination of this carbon monoxide can be made with the highest priority in all the steps described above. This is because carbon monoxide is the most dangerous.

The present invention may be implemented in hardware or software. Implementation The present invention can also be implemented as computer-readable codes on a computer-readable recording medium. That is, it may be implemented in the form of a recording medium including instructions executable by a computer. The computer readable medium includes any type of medium in which data that can be read by a computer system is stored. Computer-readable media may include computer storage media and communication storage media. Computer storage media includes all storable media implemented as any method or technology for information storage, such as computer readable instructions, data structures, program modules, and other data, and includes volatile/nonvolatile/hybrid memory. Whether or not, it is not limited to whether it is a detachable/non-separable type. Communication storage media includes a modulated data signal or transmission mechanism, such as a carrier wave, any information delivery media, and the like. And functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the technical field to which the present invention pertains.

In addition, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the claims In addition, various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

10: control device 20: air purifier
110: control control unit 120: communication unit
130: operation unit 140: interface unit
150: output unit 151: display module
153: sound output module 160: storage unit
210: local control unit 220: local communication unit
230: local operation unit 240: local interface unit
250: local output 251: local display module
253: local sound output module 260: local storage
270: purifying unit 280: air quality measurement unit
281: radon measurement module 283: dust measurement module
285: carbon monoxide measurement module 290: environmental measurement unit
291: atmospheric pressure measurement module 293: humidity measurement module
295: temperature measurement module

Claims (1)

A control device communicating with the plurality of air cleaners provided in an air cleaning system including a plurality of air cleaners disposed in the same area for each compartment,
a communication unit configured to receive a first environmental variable having a first atmospheric pressure, a first temperature, and a first humidity measured by a first air cleaner among the plurality of air cleaners; and
When the absolute difference (|ΔP|) between the second atmospheric pressure and the first atmospheric pressure measured by the second air purifier among the plurality of air purifiers is greater than or equal to the preset first reference difference value (_p1), an alarm for radon is issued. A control unit that issues; including, a control device.

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