KR20170089048A - Ventilating system using radon sensor and control method thereof - Google Patents

Ventilating system using radon sensor and control method thereof Download PDF

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Publication number
KR20170089048A
KR20170089048A KR1020150187888A KR20150187888A KR20170089048A KR 20170089048 A KR20170089048 A KR 20170089048A KR 1020150187888 A KR1020150187888 A KR 1020150187888A KR 20150187888 A KR20150187888 A KR 20150187888A KR 20170089048 A KR20170089048 A KR 20170089048A
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South Korea
Prior art keywords
indoor space
unit
air
ventilation
user
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KR1020150187888A
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Korean (ko)
Inventor
전찬혁
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주식회사 세스코
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Priority to KR1020150187888A priority Critical patent/KR20170089048A/en
Publication of KR20170089048A publication Critical patent/KR20170089048A/en

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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
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F11/0017—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • 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
    • F24F2003/1696—
    • F24F2011/003—

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

According to one embodiment, a ventilation system comprises: a ventilation unit ventilating an indoor space; a contamination sensing unit having a radon sensor to sense radon concentration of the indoor space; a user sensing unit sensing whether or not a user exists in the indoor space; and a control unit controlling operation of the ventilation unit through data obtained by the radon sensor and the user sensing unit. The present invention reduces unnecessary energy consumption.

Description

TECHNICAL FIELD [0001] The present invention relates to a ventilation system using a radon sensor,

The following description relates to a ventilation system and its control method for efficiently extracting energy and improving the indoor environment by grasping the radon concentration in the indoor space and whether or not the user enters or exits the room.

Radon is a naturally occurring radioactive gas, which can be naturally occurring in the soil or bedrock and naturally occurring from uranium.

Radon is a colorless, odorless inert gas that is the heaviest gas in nature and does not chemically react with other substances, but can be physically unstable because it has the property of emitting radiation. And, when it comes to fine particles such as dust, it drifts away from you, and if you breathe, you can enter the lungs through the respiratory system.

Natural radiation is a part of the living environment of mankind, and about half of the natural radiation exposure dose of human beings may be the exposures due to the respiratory exposure of natural radon and its offspring nuclides.

For example, Korean Patent Laid-Open No. 2001-0103440 discloses an on-line radon concentration measurement system capable of measuring and evaluating the behavior of radon particles by continuously measuring, monitoring and analyzing the radon concentration.

An object according to an embodiment is to control the operation of the ventilation unit or the air cleaning unit according to the contamination state of indoor air, in particular, the indoor radon concentration, and by controlling the operation of the ventilation unit or the air cleaning unit depending on whether there is a user in the room And to provide a ventilation system and a control method thereof that reduce unnecessary energy consumption.

A ventilation system according to an embodiment of the present invention includes a ventilation unit for ventilating an indoor space, a pollution detection unit including a radon detection sensor for detecting a radon concentration in the indoor space, a user detection unit for detecting presence or absence of a user in the indoor space, And a control unit for controlling the operation of the ventilation unit through data obtained from the contamination detection unit and the user detection unit

In one embodiment, the user sensing unit may include a carbon dioxide sensing sensor for sensing a concentration of carbon dioxide in the indoor space, or a thermal sensing sensor for measuring a temperature of the indoor space.

In one aspect, the user detection unit may detect whether the user is present in the indoor space by sensing whether the user is in or out of the room.

On one side, the control unit may drive the ventilation unit or control the output of the ventilation unit to be strengthened when the user is present in the indoor space.

On one side, the control unit may stop the ventilation unit or control the output of the ventilation unit to be reduced when the user is absent from the indoor space.

Wherein the controller compares the radon concentration of the indoor space sensed by the radon sensor with a predetermined reference to control the output of the ventilation unit to be varied when the radon concentration of the indoor space deviates from a reference value, can do.

In one aspect, the ventilation unit may discharge the air in the indoor space to the outside and supply the outdoor air to the room.

In one aspect, the ventilation unit can supply outdoor air to the indoor space in a state in which the air in the indoor space is not discharged to the outside.

The ventilation system according to an embodiment is communicably connected to a management server that performs a management service based on a home network, receives information sensed by the pollution sensing unit or the user sensing unit, To the communication unit.

The communication unit receives control information of the ventilation unit from the management server and transfers the control information to the control unit, and the control unit controls the ventilation unit through the received control information have.

According to an embodiment of the present invention, there is provided an air clean ventilation system including a ventilation unit for ventilating an indoor space, an air purifying unit for purifying air in the indoor space, a pollution sensing unit including a radon sensing sensor for sensing a radon concentration in the indoor space, A user sensing unit that senses whether or not a user enters an indoor space, and a controller that controls operation of the ventilation unit through data obtained from the contamination sensing unit and the user sensing unit.

Wherein the controller sets a first set value and a second set value higher than the first set value according to the radon concentration in the indoor space, and if the radon concentration in the indoor space is equal to or greater than the first set value, And controls the air cleaning unit and the ventilation unit to operate when the radon concentration in the indoor space is equal to or higher than the second set value.

The control unit may stop the operation of the ventilation unit and the air cleaning unit and wait if the radon concentration of the indoor space is less than the first set value.

The control unit controls the air cleaning unit to purify the indoor air in a state in which the ventilation unit does not discharge the air in the indoor space to the outside or supply the outdoor air to the indoor space have.

A first mode in which the ventilation unit discharges the air in the indoor space to the outside and supplies the outdoor air to the indoor space based on the radon concentration in the indoor space; A second mode in which the outdoor air is supplied to the indoor space in a state in which the air in the indoor space is not discharged to the outside, or the second mode in which the ventilation unit discharges the air in the indoor space to the outside, The air cleaning unit can be controlled to operate in the third mode in which the air in the indoor space is cleaned by operating the air cleaning unit in a state in which the air cleaning unit is not being supplied.

A control method of a ventilation system according to an embodiment includes a step of providing a ventilation system for an indoor space provided with a contamination detection unit including a radon sensor, a step of measuring the radon concentration of the indoor space by the radon sensor, Detecting whether a user is present, and controlling operation of the ventilation system according to the radon concentration and the presence of the user.

According to the ventilation system and the control method thereof, the operation of the air cleaning unit or the ventilation unit can be controlled according to the concentration of pollutants in the indoor air, in particular, the concentration of radon, The operation of the unit or the ventilation unit can be switched so that fresh air can always be supplied to the indoor space and the radon concentration can be kept below the reference value. In addition, when there is no occupation based on the information obtained through the user detection unit, unnecessary operation is prevented, so that power consumption can be reduced and energy efficiency can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be construed as limited.
1 is a control block diagram of a ventilation system according to one embodiment.
2 is a control flow diagram for a ventilation system according to one embodiment.
3 is a control flow diagram for an air clean ventilation system according to an embodiment.
4 is a graph for explaining the control flow chart shown in Fig.
5 is a flowchart showing an operation mode of the control unit of the ventilation system according to one embodiment.

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

1 is a control block diagram of a ventilation system according to one embodiment.

1, a ventilation system 1 according to an embodiment includes a ventilation unit 110 for ventilating an indoor space, a control unit 120 for controlling the ventilation unit 110, And a user detection unit 140 for determining whether a user exists in the indoor space.

The ventilation unit 110 may include an air supply fan 111 for introducing outdoor air into the room and an exhaust fan 112 for discharging indoor air to the outside.

The ventilation unit 110 can reduce the concentration of contaminants in the indoor space by discharging the air in the indoor space having a high concentration of contaminants to the outside, or by introducing the air outside the room to pressurize the room. In this case, the contaminant in the indoor space may be radon.

Then, the ventilation unit 110 can discharge the air in the indoor space to the outside, and can also supply the outdoor air to the room.

Alternatively, the ventilation unit 110 can supply outdoor air to the indoor space without discharging the air in the indoor space to the outside.

For example, when the operation of the exhaust fan 112 for discharging the air in the indoor space to the outside is interrupted, the pipe in which the room air flows into the ventilation unit 110, or the pipe through which the air is discharged from the ventilation unit to the outside So that air in the indoor space is not discharged to the outside. In this state, the ventilation unit 110 can supply outdoor air to the indoor space.

With such a configuration, the ventilation unit 110 can increase the indoor pressure to lower the concentration of contaminants in the indoor space, and can reduce the indoor inflow of contaminants generated in the space by applying positive pressure in the indoor space. In this case, the contaminant may be radon. The contamination detection unit 130 may include one or more sensors for detecting contaminants. For example, the sensor may be a radon sensor 131 for sensing the indoor radon concentration.

For example, the pollution sensing unit 130 may additionally include various kinds of volatile organic compounds (such as formaldehyde (HCHO), toluene, benzene, and acetone), such as sulfuric acid gas, carbon monoxide, nitrogen dioxide, ozone, VOCs), as well as nitrogen dioxide (CO2), dust, tobacco smoke, odors and microbial substances (Escherichia coli, Pseudomonas aeruginosa, 0-157, Salmonella) and volatile organic pollutants , And other odors, noise, and radiation.

The user detection unit 140 may include one or more user detection sensors for determining whether a user exists in the room. For example, the sensing unit 140 may be a carbon dioxide sensing sensor 141 or a heat sensing sensor 142. [

In this case, the carbon dioxide sensing sensor 141 can detect the change of the indoor carbon dioxide concentration due to the carbon dioxide emitted from the user who entered the room, and determine whether there is an indoor user.

In addition, the heat sensing sensor 142 senses the temperature change of the indoor heat source through the body temperature of the user who entered the room, and can detect whether the user exists in the room.

In addition, the user sensing unit 140 may detect whether a user is present in the room by various methods such as a motion sensing sensor for sensing the movement of the user, an infrared sensing sensor for sensing the presence of the user, a microwave sensor, Sensing sensor.

The control unit 120 minimizes or stops the output of the ventilation unit 110 to reduce energy consumption when the user is absent from the room based on the access information for the user obtained from the user sensing unit 140, The output of the ventilation unit 110 can be increased to provide a pleasant indoor environment.

The control unit 120 sets the reference concentration of the pollutants in advance and controls the output of the ventilation unit 110 to be variable when the concentration of the indoor pollutants detected through the pollution detection sensor 130 exceeds the reference concentration So that the concentration of the indoor pollutants can be controlled to be lower than the reference concentration.

For example, the reference concentration of a predetermined contaminant may be a radon concentration. The reference concentration of the indoor pollutant is the concentration of the fine dust in the space and various kinds of volatile organic compounds (VOCs) such as sulfur dioxide, carbon monoxide, nitrogen dioxide, ozone and the carcinogenic substances such as formaldehyde (HCHO), toluene, benzene, (CO2, dust, cigarette smoke, odor and microbial substances (Escherichia coli, Pseudomonas aeruginosa, 0-157, Salmonella) and volatile organic pollutants in various household goods and other odor, Noise, radiation, and the like.

Further, the ventilation system 1 further includes an air cleaning unit 150 that purifies the indoor air. In this case, the air cleaning unit 150 may include a blowing fan 151 that adjusts the amount of room air to be cleaned, and the output of the blowing fan 151 may be controlled by the control unit 120.

The control unit 120 of the ventilation system 1 can selectively operate the ventilation unit 110 or the air cleaning unit 150 based on the concentration of indoor pollutants. In this case, the concentration of the pollutant may be a radon concentration.

For example, a reference value for determining the operation of the ventilation unit 110 or the air cleaning unit 150 may be set in the control unit 120. [ If the measured radon concentration is equal to or higher than the reference value, the ventilation unit 110 is operated. If the measured radon concentration is lower than the reference value, the air cleaning unit 150 can be operated.

Alternatively, the ventilation unit 110 or the air cleaning unit 150 may all be operated depending on the reference value of the set radon concentration. In this case, the ventilation unit 110 or the air cleaning unit 150 can be operated in consideration of the concentration of contaminants other than the radon concentration.

For example, if the indoor radon concentration has become sufficiently low, the control unit 120 can control the operation of the ventilation unit 110 to be stopped and only the air cleaning unit 150 to operate.

That is, the control unit 120 operates the air cleaning unit 150 to purify the indoor air in a state in which the ventilation unit 110 does not discharge the air in the indoor space to the outside or supply the outdoor air to the indoor space Can be controlled.

At this time, the reference concentration of the indoor pollutants is the concentration of the fine dust of the space, various volatile organic compounds (VOCs) such as sulfur dioxide, carbon monoxide, nitrogen dioxide, ozone and the carcinogenic substances such as formaldehyde (HCHO), toluene, benzene, (CO2), dust, tobacco smoke, odor and microbial substances (Escherichia coli, Pseudomonas aeruginosa, 0-157, Salmonella) and volatile organic pollutants in various household products, etc. Odor, noise, radiation, and the like.

The ventilation system 1 may further include a communication unit 160 connected to the control unit 120 and transmitting indoor information to an external management server.

At this time, the communication unit 160 receives from the control unit 120 information on whether or not the user has entered the control unit 120 and information on the pollutants, and transmits the information to the external management server 200, Lt; / RTI >

Also, the communication unit can transmit the control information of the indoor ventilation system received from the external management server 200 to the controller 120. In this case, the transmission method of the communication unit 160 may be wired or wireless. The ventilation system according to one embodiment having the above-described configuration will be described with reference to the accompanying drawings.

2 is a view for explaining a process of the ventilation system performing the corresponding operation mode.

Referring to FIG. 2, in the initializing operation step (S100), the initializing operation of the ventilation system (1) can be performed. The initializing operation may mean that the ventilation unit 110 is operated in the initial state.

In the user detection step (S110), the presence of the user in the room can be detected through the user detection unit (140).

Next, in the user existence determination step S120, it is possible to determine whether there is a user in the room based on the information obtained from the user detection unit 140. [

In this case, if it is determined that the user in the room is absent, the flow proceeds to the ventilation output reducing step S130 and the output of the ventilation unit 110 can be reduced.

On the other hand, if it is determined that there is a user in the room, the step of measuring the radon concentration (S140) for measuring the indoor radon concentration may be performed. In the radon concentration measuring step (S140), the radon concentration in the room can be measured from the radon detecting sensor 131 included in the pollution detecting unit 130.

In the radon concentration determination step (S150), the reference value of the preset radon concentration and the radon concentration of the room measured in the measurement step of the radon concentration (S140) can be compared. In this case, if the indoor radon concentration is equal to or higher than the reference value, the process proceeds to the ventilation output enhancing step (S160) to enhance the output of the ventilation unit.

On the other hand, if the radon concentration in the indoor radon concentration determination step S150 is less than the reference value, the ventilation stop step S170 may be performed to reduce or stop the output of the ventilation unit 110. [

The steps described above can be repeated periodically and can be configured to return to the initial state and detect the user again after the ventilation operation is stopped.

The reference value of the preset radon concentration can be determined through a number of tests. The radon concentration in the radon concentration measuring step (S140) and the radon concentration determining step (S150) may be replaced with the concentration of other pollutants such as carbon monoxide, VOCs, and formaldehyde.

FIG. 3 is a view for explaining the operation of the air clean ventilation system in the corresponding operation mode, and FIG. 4 is a graph for explaining the operation mode of the air clean ventilation system of FIG.

3 and 4, the pollution sensing unit 130 including the radon sensor 131 senses the radon concentration V in the indoor space, and the controller 120 controls the sensed radon concentration V to be preset The output of the air cleaning unit 150 or the ventilation unit 110 can be controlled by comparing the first set value V1 and the second set value V2. Here, the second set value V2 has a radon concentration higher than the first set value V1, and the first set value V1 and the second set value V2 can be set through a plurality of tests.

Hereinafter, the control flow in the air clean ventilation unit will be described in detail. In the indoor radon concentration measuring step S200, the contamination detecting unit 130 including the radon sensor 131 can measure the radon concentration V in the indoor space.

 Thereafter, in the first measured value comparison step S210, the controller 120 compares the measured radon concentration V of the indoor space measured from the indoor radon concentration measuring step S200 with a predetermined first measured value V1 Can be performed.

In this case, when the radon concentration V in the indoor space compared in the first measured value comparison step S220 is less than the first measured value V1, the control unit 120 controls the air cleaning unit 150 and the ventilation unit 110 (Step S250).

On the other hand, when the radon concentration V of the indoor space compared in the first measured value comparison step S210 is equal to or greater than the first measured value V1, the control unit 120 controls the air purifying unit The control unit 150 may be operated.

If the measured indoor radon concentration V is equal to or greater than the first measured value V1, the control unit 120 compares the measured indoor indoor radon concentration V1 with the indoor indoor temperature measured in step S200 And comparing the measured radon concentration (V) of the space with a predetermined second measured value (V2).

In this case, when the radon concentration V in the indoor space compared in the second measured value comparison step S230 is equal to or greater than the second measured value V2, the control unit 120 controls the ventilation unit 110) may be operated.

 On the other hand, when the radon concentration V in the indoor space compared in the second measured value comparison step S230 is less than the second measured value V2, the operation for maintaining the current operation mode for operating the air cleaning unit 150 And a mode holding step (S260) may be performed.

The radon sensor 131 for detecting the indoor radon concentration is employed as the detection sensor of the indoor pollution sensing unit 130. However, the present invention is not limited to this, and the concentration of fine dust in the space, (VOCs) such as carbon monoxide, nitrogen dioxide, ozone, and carcinogenic substances such as formaldehyde (HCHO), toluene, benzene and acetone, nitrogen dioxide generated from asbestos, And a contamination detection sensor for detecting indoor pollutants such as tobacco smoke, smell and microbial substances (Escherichia coli, Pseudomonas aeruginosa, 0-157, Salmonella) and volatile organic pollutants and other odors, noise and radiation in various household goods can do. It will be readily understood by those skilled in the art without any specific explanation.

5 is a flowchart showing an operation mode of the ventilation system control unit according to an embodiment.

Referring to FIG. 5, the control unit 120 of the ventilation system 1 may provide a plurality of operating modes based on the radon concentration of the measured indoor space. And each operation mode can be controlled based on whether the user sensed by the user detection unit 140 is in or out of the room.

In the first mode, the air in the indoor space can be discharged outdoors and the air outside the room can be supplied to the indoor space. The ventilation unit 110 can operate both the air supply fan 111 for introducing the outdoor air into the indoor space and the exhaust fan 112 for discharging the air in the indoor space to the outdoor space to vent air.

For example, the first mode may have a higher air radon concentration in the indoor space than outdoor air, and may be provided when indoor air inflow of outdoor air is required. A heat exchange type ventilator may be used as the ventilation unit 110, and the degree of ventilation can be controlled according to the concentrations of various pollutants such as the radon concentration and the carbon dioxide concentration in the indoor space.

Also, the first mode may be provided depending on whether or not the user is indoors.

The control unit 140 of the ventilation system 1 may be connected to the ventilation unit 110 and the air cleaning unit 150. The ventilation unit 110 may be connected to the air cleaning unit 150. For example, when the user is indoors, May be operated in the first mode to reduce the concentration of the indoor pollutants.

In the second mode, outdoor air can be supplied to the room without discharging the air in the indoor space to the outside. The ventilation unit 110 can stop the operation of the air supply fan 111 for introducing air into the indoor space and operate the exhaust fan 112 for discharging the air to the outside.

For example, in the second mode, the indoor air pressure is increased by supplying outdoor air to the indoor space, so that the radon concentration can be lowered. Then, positive pressure is applied to the room to prevent the radon generated in the gap from being introduced into the indoor space. The degree of outdoor air supply can be controlled according to the concentrations of various pollutants such as the indoor radon concentration and the carbon dioxide concentration.

In addition, the second mode may be provided depending on whether the user is indoors.

For example, when the indoor user is detected but the user's entrance is not detected, or if the number of the users existing in the indoor space is less than a predetermined reference value, the controller 140 activates the second mode, The concentration can be lowered.

In the third mode, air flow in and out of the indoor space and the outdoor air is blocked, and air in the indoor space can be circulated. The control unit 140 can stop the operation of the air supply fan 111 and the exhaust fan 112 of the ventilation unit 110 and control the ventilation unit 110 to block the inflow and outflow of indoor and outdoor air.

For example, the third mode may be provided when the radon concentration in the interior space is sufficiently low. In the third mode, the operation of the ventilation unit 110 is stopped, air flow in and out of the indoor space and the outdoor space is blocked, and air in the indoor space can be circulated.

The control unit 140 may control the operation of the air cleaning unit 150 so as to purify air in the indoor space. The degree of operation of the air cleaning unit 150 can be controlled according to the concentrations of various pollutants such as the radon concentration and the carbon dioxide concentration in the indoor space.

That is, the control unit 140 operates the air cleaning unit 150 to purify the indoor air in a state in which the ventilation unit 110 does not discharge the air in the indoor space to the outside or supply the outdoor air to the indoor space .

Also, the third mode may be provided depending on whether the user exists in the room.

For example, when the user is not present in the room or when the exit of the user is sensed, the control unit 140 operates the ventilation unit 110 and the air cleaning unit 150 in the third mode, Can be maintained.

The operation modes described above are exemplary, and the ventilation system 1 may include additional modes, or may operate only some of the illustrated modes.

The control unit 140 can set the operation mode of the ventilation unit 110 and the air cleaning unit 150 according to a reference value according to the presence or absence of a user who has set in advance.

That is, by operating the ventilation unit 110 and the air cleaning unit 150 in different modes depending on whether the user is entering or leaving the room, air and air can be actively actuated.

In the above-described embodiment, the control unit 140 adopts the radon concentration as the pollutant concentration to control the ventilation unit 110 and the air cleaning unit 150 according to the plurality of operation modes. However, the present invention is not limited thereto, (VOCs) such as formaldehyde (HCHO), toluene, benzene, and acetone, nitrogen dioxide generated from asbestos, and the like, as well as the concentration of fine dusts in the air, the sulfur dioxide, the carbon monoxide, the nitrogen dioxide, , Indoor air pollutants such as carbon dioxide (CO2), dust, tobacco smoke, odors and microbial substances (Escherichia coli, Pseudomonas aeruginosa, 0-157, Salmonella) and volatile organic pollutants and other odors, A plurality of operation modes can be controlled based on the concentration. It will be readily understood by those skilled in the art without any specific explanation.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. For example, it is contemplated that the techniques described may be performed in a different order than the described methods, and / or that components of the described structures, devices, and the like may be combined or combined in other ways than the described methods, Appropriate results can be achieved even if they are replaced or replaced.

Therefore, other implementations, other embodiments and equivalents to the claims are within the scope of the following claims.

110 Ventilation unit 111 Supply fan
112 exhaust fan 120 control unit
130 Pollution detection unit 131 Radon sensor
140 User Detection Unit 141 Carbon Dioxide Sensor
142 Thermal sensor 150 Air cleaning unit
151 blower fan 160 communication unit
200 management server

Claims (16)

A ventilation unit for ventilating the indoor space;
A contamination detection unit including a radon detection sensor for detecting a radon concentration in the indoor space;
A user detection unit for detecting whether a user exists in the indoor space; And
And a control unit for controlling operation of the ventilation unit through data obtained from the contamination detection unit and the user detection unit.
The method according to claim 1,
Wherein the user detection unit comprises:
A carbon dioxide sensor for sensing a concentration of carbon dioxide in the indoor space; and a thermal sensor for measuring a temperature of the indoor space.
3. The method of claim 2,
Wherein the user sensing unit senses whether the user is present in the indoor space by sensing whether the user is in or out of the room.
3. The method of claim 2,
Wherein,
And when the user is present in the indoor space, drives the ventilation unit or controls the output of the ventilation unit to be strengthened.
3. The method of claim 2,
Wherein,
And stops the ventilation unit when the user is absent in the indoor space or controls the output of the ventilation unit to be reduced.
The method according to claim 1,
The control unit compares the radon concentration of the indoor space detected through the radon sensor with a predetermined reference,
Wherein the control unit variably controls the output of the ventilation unit when the radon concentration in the indoor space exceeds a reference value.
The method according to claim 1,
Wherein the ventilation unit discharges air in the indoor space to the outside and supplies the outdoor air to the indoor space.
The method according to claim 1,
Wherein the ventilation unit supplies outdoor air to the indoor space in a state in which the air in the indoor space is not discharged outdoors.
The method according to claim 1,
Further comprising a communication unit communicably connected to a management server performing a management service based on a home network and receiving the information detected from the contamination detection unit or the user detection unit and transmitting the information to the management server Ventilation system.
10. The method of claim 9,
Wherein the communication unit receives control information of the ventilation unit from the management server, transfers the control information to the control unit,
And the control unit controls the ventilation unit through the received control information.
A ventilation unit for ventilating the indoor space;
An air purifying unit for purifying air in the indoor space;
A contamination detection unit including a radon detection sensor for detecting a radon concentration in the indoor space;
A user detection unit for detecting whether or not the user enters or exits the indoor space; And
And a control unit for controlling operation of the ventilation unit through data obtained from the pollution detection unit and the user detection unit.
12. The method of claim 11,
Wherein,
The control unit sets the first set value and the second set value higher than the first set value according to the radon concentration in the indoor space and controls the air purifying unit to operate when the radon concentration in the indoor space is equal to or greater than the first set value And controls both the air cleaning unit and the ventilation unit to operate when the radon concentration in the indoor space is equal to or higher than the second set value.
12. The method of claim 11,
Wherein the control unit stops the operation of the ventilation unit and the air cleaning unit and waits if the radon concentration in the indoor space is less than the first set value.
12. The method of claim 11,
Wherein,
Wherein the ventilation unit controls the indoor air to be purified by operating the air cleaning unit in a state in which the ventilation unit discharges the air in the indoor space to the outside or does not supply outdoor air to the indoor space.
12. The method of claim 11,
Wherein the control unit controls, based on the radon concentration in the indoor space,
A first mode in which the ventilation unit discharges the air in the indoor space to the outside and supplies the outdoor air to the indoor space;
A second mode for supplying outdoor air to the indoor space in a state in which the ventilation unit does not discharge the air in the indoor space to the outside; or
And a third mode for purifying the air in the indoor space by operating the air cleaning unit in a state in which the ventilation unit does not discharge the air in the indoor space to the outside or supply the outdoor air to the indoor space,
Wherein the ventilation unit or the air cleaning unit can be controlled.
Providing a ventilation system for an indoor space provided with a contamination detection unit including a radon sensor;
Measuring the radon concentration of the indoor space by the radon sensor;
Detecting whether a user exists in the indoor space;
And controlling operation of the ventilation system according to the concentration of the radon and the presence of the user.
KR1020150187888A 2015-12-28 2015-12-28 Ventilating system using radon sensor and control method thereof KR20170089048A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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KR101980451B1 (en) 2017-11-22 2019-08-28 연세대학교 원주산학협력단 Appliance for education
KR102193222B1 (en) * 2020-05-08 2020-12-21 이수한 A system for automatically controlling the building
KR102249820B1 (en) * 2019-12-09 2021-05-10 전남대학교병원 Air conditioner system
KR102323036B1 (en) * 2020-08-24 2021-11-05 중앙대학교 산학협력단 Air cleaning method considering the floating characteristics of particulate matter
KR102554559B1 (en) * 2022-08-12 2023-07-13 주식회사 베터라이프 Smart radon measurement apparatus with radon measurement environmental analysis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101980451B1 (en) 2017-11-22 2019-08-28 연세대학교 원주산학협력단 Appliance for education
KR102249820B1 (en) * 2019-12-09 2021-05-10 전남대학교병원 Air conditioner system
KR102193222B1 (en) * 2020-05-08 2020-12-21 이수한 A system for automatically controlling the building
KR102323036B1 (en) * 2020-08-24 2021-11-05 중앙대학교 산학협력단 Air cleaning method considering the floating characteristics of particulate matter
KR102554559B1 (en) * 2022-08-12 2023-07-13 주식회사 베터라이프 Smart radon measurement apparatus with radon measurement environmental analysis

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