KR20210083592A - Indoor air quality monitoring system for multi-use facilities - Google Patents

Abstract

The present invention provides an indoor air quality monitoring system for a multi-use facility that can effectively manage the air quality of a target space in consideration of not only the indoor air quality of the target space but also external factors. According to the present invention, the indoor air quality monitoring system for a multi-use facility comprises: at least one individual device installed in a target space; at least one measuring device installed in the target space and measuring air quality in the target space; and a monitoring unit for controlling the operation of the individual device by using the result measured by the measuring device and providing it to a user device.

Description

INDOOR AIR QUALITY MONITORING SYSTEM FOR MULTI-USE FACILITIES

The following description is to provide an indoor air quality monitoring system for a multi-use facility including a hospital.

As the industry develops, the environment is polluted, and as the quality of life increases, the desire to improve it is increasing. However, the scientific and systematic method of improving air quality is still insufficient.

For example, the indoor air quality in which most people live, for example, is only a degree to which the indoor air is simply ventilated only through the operation of manually or automatically opening and closing the window through a conventional window, so especially if there are no occupants or If the window is completely closed to prevent crime when sleeping at night, ventilation or removal of various harmful substances generated indoors is impossible, and various pollutants are present in the room as they are, causing various problems.

Of course, some air purifiers have been used as a way to improve indoor air quality in the prior art, but in terms of their function, there is a natural limit to improving indoor air quality. In addition, it was difficult for occupants to check the amount of pollutants numerically because there was no sensor to measure the numerical value, making it impossible to effectively manage air quality improvement. In addition, it can be said that partial air quality improvement is being performed depending on the senses, such as environmental improvement is not being made in connection with other control or cleanliness. In particular, when the air purifier is turned on for a long time, the amount of ozone (25%) emitted along with negative ions (about 75%) continues to increase, resulting in occupants inhaling the excessively supplied organic compounds.

However, with the development of industry and the improvement of the cultural level, interest in health has recently been on the rise due to the richness of life, and moreover, health is the most precious and important element in human life. It would be an undeniable fact. However, in our living space, numerous polluting substances emitted from vehicles and industrial facilities, and harmful substances generated from household products such as construction materials, furniture, and electronics made of petroleum and chemical-related materials are threatening human health. , the reality is that the severity is increasing day by day.

In particular, humans live in a limited indoor space for more than about 80% of 24 hours a day, and in this process, polluted air is continuously generated, and the pollutant concentration in the room is inevitably increased by the generated polluted air. At this time, if the indoor pollutant concentration is not properly controlled or improved, humans have no choice but to unconsciously breathe polluted air while living, and live without knowing it, harming their health.

There are about 250 kinds of substances polluting indoor air, including very small substances. Among them, in relation to housing, it contains various volatile organic compounds (VOCs) such as formaldehyde (HCHO), radon, toluene, benzene, and acetone, which are carcinogenic substances generated from various indoor building materials, nitrogen dioxide generated from asbestos, etc. There is this. In addition, in terms of human activity, carbon dioxide (CO2), dust, cigarette smoke, foot odor and microbial substances ( coli, Pseudomonas aeruginosa, 0-157, salmonella) and volatile organic pollutants, and other odors, noise, and radiation. It is well known that these various harmful substances cause various adverse effects on the human body, such as skin allergy, respiratory disease, and headache.

Here, the pollutants generated from various building materials may naturally disappear to a level of indoor pollution below the allowable standard in about 1 to 5 years. Even in this case, the improvement of air quality until it falls below the standard concentration (1000ppm or less based on CO2) suggested by the Public Sanitation Control Act and the Building Act is a problem. In addition, harmful substances such as various carbon dioxide generated from human activities cannot be eliminated. They are also indispensable materials in terms of ecological and environmental aspects.

Therefore, above all, various harmful substances generated from human activities set the appropriate standard value and, when generated above this allowable standard, immediately lower the indoor air quality to below the allowable standard, even with the presence of occupants or with the window or door closed. It will be very important to improve it. This is because carbon dioxide generated from human activities is not properly designed for natural circulation of indoor air due to the structure of our houses, so if the natural circulation of harmful air is not achieved, eventually the occupant will breathe more carbon dioxide than the appropriate amount of oxygen through breathing. will inhale In severe cases, there is a problem that causes breathing difficulties or serious impairment in brain movement.

However, the domestic housing construction industry has not found a way to improve air quality in relation to housing, and public interest in the environment is increasing recently. In the end, as the "Indoor Air Quality Management Act" was enacted into law in 2004.06, it was expanded to multi-use facilities such as underground stations, underground shopping malls, passenger terminals, libraries, general hospitals, and new apartment houses. In the case of new apartment houses, air quality is measured before residents move in. The government is taking strong measures such as making public announcements to manage indoor air quality and improve the living environment.

However, the reality does not keep up with these human needs. In the case of various products having sterilization, deodorization, and air cleaning functions, which are conventionally used to improve various air quality, the sensor simply detects the sensed air quality as a numerical value. It is not checked and managed. Above all, because the occupants cannot see and feel the level of indoor air quality with their own eyes, it is impossible to effectively manage indoor air quality.

In order to propose such a comprehensive environmental improvement method, it is urgent to develop a methodology for comprehensive improvement work, starting with an index for sensor values or evaluation values.

The content described as the above background art is possessed or acquired by the inventor in the process of derivation of the present invention, and cannot necessarily be acknowledged as a known art disclosed to the general public prior to the filing of the present invention.

An object of the embodiment is to provide an indoor air quality monitoring system for a multi-use facility that can effectively manage the air quality of a target space in consideration of not only the indoor air quality of the target space but also external factors.

The problems to be solved in the embodiments are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to the embodiments of the present invention for achieving the object of the present invention, the indoor air quality monitoring system for a multi-use facility includes at least one or more individual devices installed in the target space, installed in the target space and the target space It is configured to include at least one or more measuring devices for measuring air quality from the inside, and a monitoring unit that controls the operation of the individual devices using the results measured by the measuring devices and provides them to a user device.

According to one side, the individual device may include at least one of an air purifier, a ventilation device, a humidifier, and a dehumidifier.

According to one side, the measuring device may include a detection unit including a plurality of sensors for measuring indoor air quality, and a communication unit for communication with the outside. The detector measures radon (Rn), fine dust (PM10), total organic volatile compounds (TVOC), formaldehyde (HCHO), nitrogen dioxide (NO2), methane (CH4), carbon dioxide (CO2), temperature, and humidity. It may include any one or more sensors among a plurality of sensors. The communication unit may use any one or more selected from a local area network (LAN) including CDMA, Bluetooth, and WiFi, an infrared sensor, RFID, and NFC. In addition, the monitoring unit may provide the value measured by the detection unit as an individual value or as an integrated value.

According to one side, weight information for the target space is further stored in the monitoring unit, and the weight information further includes spatial information about the target space, occupant information, and external pollution information, and the monitoring unit includes the weight information. An operation of at least one or more individual devices installed in the target space may be differentially controlled using the information. The occupant information may include the number of occupants of the target space and sensitive layer information. The sensitive layer information may include information provided from an external organization. The external pollution information may include external weather, yellow sand or fine dust concentration in the atmosphere.

As seen above, according to the present embodiment, it is possible to more effectively measure the air quality in a multi-use facility including a hospital.

The effect of the indoor air quality monitoring system for a multi-use facility according to an embodiment is not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 and 2 are schematic diagrams of an indoor air quality monitoring system for a multi-use facility.
3 is a block diagram of a measuring device in an indoor air quality monitoring system according to an exemplary embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in the description of the embodiment, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the component from other components, and the essence, order, or order of the component is not limited by the term. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. It will be understood that may also be "connected", "coupled" or "connected".

Components included in one embodiment and components having a common function will be described using the same names in other embodiments. Unless otherwise stated, a description described in one embodiment may be applied to another embodiment, and a detailed description in the overlapping range will be omitted.

Hereinafter, an indoor air quality monitoring system 100 for a multi-use facility according to embodiments will be described with reference to FIGS. 1 to 3 . For reference, FIGS. 1 and 2 are schematic diagrams of an indoor air quality monitoring system 100 for a multi-use facility according to an embodiment, and FIG. 3 is a measurement device ( 120) is a block diagram.

Referring to the drawings, the indoor air quality monitoring system 100 for a multi-use facility is installed in a target space 10 that is a multi-use facility including a home, a school or daycare center, a facility for infants such as a kindergarten, and a medical facility such as a hospital. It is a system that monitors indoor air quality and manages and improves indoor air quality based on the results.

Here, 'air quality' refers to a numerical value according to the presence or concentration of various pollutants in the air including fine dust in the target space 10 .

The target space 10 includes not only homes, but also medical facilities such as infant facilities such as schools, daycare centers, kindergartens, or hospitals, and is a space where sensitive groups such as infants, children, or patients are the main targets, It is a space where many people use and live. As such, the sensitive class is the main target, so it is difficult to manage indoor air quality, and it is necessary to manage indoor air quality in a more detailed and high level of cleanliness.

Here, the target space 10 may be controlled as a single space, and the interior thereof may be divided into a plurality of control areas R1, R2, ... and monitored. However, the size and number of control regions partitioning the target space 10 may be set substantially variously. In addition, in the target space 10 , the control area may be divided and partitioned into regular sizes and partitioned and partitioned with irregular sizes. For example, the target space 10 may appropriately set the size of the control area according to the type of space, such as a location where a lot of pollutants are generated, such as a restaurant.

The indoor air quality monitoring system 100 includes an individual device 110 , a measuring device 120 , and a monitoring unit 130 .

The individual device 110 is installed in the target space 10 to circulate, ventilate, and purify the air inside the target space 10 . For example, the individual device 110 may include various devices such as an air purifier, a ventilation device, a humidifier, and a dehumidifier. Also, the individual device 110 may be an air conditioning system installed in the target space 10 . In addition, the individual device 110 may include devices such as a filter for filtering air and a heating and cooling device to enable heating and cooling.

Referring to FIG. 3 , the measuring device 120 is configured to measure representative polluting factors for indoor air quality, and a plurality of sensors for detecting the polluting factors are modularly configured as one device. In addition, the measurement device 120 includes a detection unit 121 in which a plurality of sensors are modularized by one interface, a communication unit 122 for communication with the monitoring unit 130 , and a sensor for controlling the operation of the measurement device 120 . A control unit 123 may be included.

The measuring device 120 is modularized by implementing the detection unit 121 , the communication unit 122 , and the sensor control unit 123 in one device. Here, “modularized” means that the detection unit 121 , the communication unit 122 , and the sensor control unit 123 are mounted on a housing or frame forming the exterior of the measurement device 120 to be configured as a single device.

Here, in the indoor air, various volatile organic compounds (VOCs) such as formaldehyde (HCHO), radon, toluene, benzene, and acetone, which are carcinogenic substances generated from various indoor building materials, nitrogen dioxide (NO2) generated from asbestos, etc. of pollutants, carbon dioxide (CO2), dust, cigarette smoke, odors, and microbial substances (E. coli, E. coli, Pseudomonas aeruginosa, 0-157, salmonella), volatile organic pollutants, and other odors, noise, and radiation are pollutants that pollute air quality.

Among the various polluting factors, the measuring device 120 measures total organic volatile compounds (TVOC), formaldehyde (HCHO), fine dust (PM10), nitrogen dioxide (NO2), carbon dioxide (CO2), and methane, which are representative indoor air polluting factors. (CH4), radon (Rn), and various sensors for measuring temperature and humidity (hereinafter, referred to as a 'detector unit 121') may be included. That is, the detection unit 121 is a total organic volatile compound (TVOC) sensor, formaldehyde (HCHO) sensor, fine dust (PM10) sensor, nitrogen dioxide (NO2) sensor, carbon dioxide (CO2) sensor, methane (CH4) sensor, radon ( Rn) may include a sensor, and may also include a temperature sensor and a humidity sensor.

However, this is only an example, and the type and number of sensors measured by the detector 121 may be substantially changed.

For example, the total organic volatile compound (TVOC) sensor may be a PID gas sensor. The formaldehyde (HCHO) sensor may be an electrochemical gas sensor. The fine dust (PM10) sensor may be an optical particle sensor. The nitrogen dioxide (NO2) sensor may be a miniature MEMS sensor. The carbon dioxide (CO2) sensor may be a Non-Dispersive Infrared Absorption (NDIR) sensor. The methane (CH4) sensor may be an NDIR type sensor. A radon (Rn) sensor may also be a sensor with high precision.

The communication unit 122 may be configured to communicate with the monitoring unit 130 by wire or wirelessly. In addition, the measuring device 120 may also transmit location information of the measuring device 120 that communicates with the sensor measurement value to the monitoring unit 130 .

The measuring device 120 is installed at a plurality of positions inside the target space 10 , and may be installed to be fixed or moveable. However, the location and number of the measuring devices 120 may be substantially variously changed.

In this embodiment, the indoor air quality monitoring system 100 monitors the air quality for each zone in the target space 10 and manages the air quality by operating the individual devices 110 using the values measured in the target space 10 . can

The monitoring unit 130 collects sensor measurement values measured in the target space 10 and weight information on the target space 10 , and provides the information to the user device. Also, the monitoring unit 130 controls the individual devices 110 by using the results measured by the measuring device 120 . The monitoring unit 130 is integrated for control of a server 131 in which sensor measurement values and weight information are stored, and a national disease integrated management system 132 that provides information on sensitive layers and individual devices 110 . It may include a control center 133 .

Here, the sensor measurement value is a value measured by the measurement device 120 , and includes measurement values for a plurality of contaminants measured by the measurement device 120 . In addition, the sensor measurement values may be calculated as not only each measured value but also the measured values as a single integrated value. For example, the sensor measurement value 131 may be displayed by dividing the measured value from “very bad” to “very good” into a plurality of stages and scoring the measured value. However, this is only an example, and the sensor measurement value may be set in various ways.

The weight information includes various information such as a degree of congestion for the target space 10 , information by an external environment, and spatial information. In addition, the weight information includes information on the sensitive layer residing and residing in the target space 10 .

For example, the weight information is information for reflecting the degree of congestion due to the number of people, such as floating population and resident population, and includes information on measured values of carbon dioxide (CO2) and fine dust in the target space 10 . In addition, the congestion level is information to reflect an environmental situation in which a large amount of pollutants are rapidly generated, such as a fire, and information on whether or not the measured values of volatile organic compounds (VOCs), nitrogen dioxide (NO2), and fine dust increase rapidly. can

In addition, the weight information may also include information about the type of space for the target space 10 . For example, information about the size and location of the target space 10 , the type of the target space 10 (eg, information on a restaurant, an office space, a lounge, etc.) may be used as weight information.

In addition, the weight information is information for reflecting external pollution information of the target space 10 , and includes external environment information of the target space 10 .

In addition, the external environmental information includes information on the concentration of yellow dust or fine dust in the atmosphere, for example, external environmental information is measured by the measuring device 120, or the National Air Pollution Information Management System (NAMIS), air It may include data provided by external organizations including Korea, the Korea Meteorological Administration, and local governments.

Here, the National Air Pollution Information Management System (NAMIS) is an institution that collects and manages air pollution level data such as sulfur dioxide, carbon monoxide, nitrogen dioxide, ozone, and fine dust from measuring stations located across the country. and the provided air pollution measurement network-related infrastructure. In addition, Air Korea provides real-time information to the public by expressing measurement data of five atmospheric environmental standards measured in urban atmospheric measurement network, roadside atmospheric measurement network, national background measurement network, and suburban atmospheric measurement network installed in cities/guns across the country in various formats. do. In addition, data such as yellow dust warning system operated by the Korea Meteorological Administration, fine dust warning system, and ozone warning system operated by local governments can be used.

The national disease integrated management system 132 is a system that provides information on environmental diseases based on health information data, and is a system that provides information related to a sensitive class residing in the target space 10 .

The control center 133 recognizes the situation for the target space 10 using the information collected from the measurement device 120 and controls the operation of the individual device 110 using a control scenario according to the recognized situation. .

The monitoring unit 130 uses the collected information for the target space 10 , and the situation for the target space 10 using sensor measurement values and weight information (ie, air quality determination for the target space 10 ). become aware of

Here, in the embodiment, the situation is recognized using the sensor measurement value and weight information, but this is only an example, and the weight information may consider various factors in addition to the external environment.

In addition, the monitoring unit 130 operates the individual device 110 by determining whether the operation of the air purifier is necessary, ventilation, humidity control, etc., in order to purify the indoor air. In addition, the monitoring unit 130 may guide the replacement cycle of the filter in the target space 10 as necessary, and may monitor the energy consumption.

In addition, the indoor air quality monitoring system 100 may include a user device (not shown) that allows the administrator to manipulate the operation of the individual device 110 . The user device not only controls the individual device 110 through the monitoring unit 130 , but also allows viewing of various information stored in the monitoring unit 130 . For example, the user device may include various terminals that an administrator can carry. In addition, the user device may also include a program that allows the user to manipulate and browse.

According to the embodiment, the indoor air quality monitoring system 100 uses the measurement device 120 capable of measuring various pollutants in the air, and the sensor value measured in the target space 10 and information on the target space 10 . And it is possible to operate the individual device 110 by using various information such as the degree of external contamination. In addition, by individually operating the individual device 110 for each target space 10 , it is possible to efficiently and economically control ventilation and cleanliness of the target space 10 .

According to the present embodiments, for a multi-use facility, it is possible to differentially manage the air quality of the target space 10 , and information such as external pollution as well as a sensor value measured by the measuring device 120 can be managed. Since the individual device 110 is controlled by using the system, it is possible to efficiently operate the individual device 110 . In addition, the indoor air quality monitoring system 100 can properly operate the individual device 110 according to the situation and space, thereby improving the operating efficiency of the individual device 110 and reducing the electricity cost. It can be said to be effective in terms of maintenance of

As described above, although the embodiments have been described with reference to the limited drawings, various modifications and variations are possible from the above description by those of ordinary skill in the art. For example, the described techniques are performed in an order different from the described method, and/or the described components of structures, devices, etc. are combined or combined in a different form than the described method, or other components or equivalents are used. Appropriate results can be achieved even if substituted or substituted by

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

10: target space
100: Indoor air quality monitoring system for multi-use facilities
110: individual device
120: measuring device
121: detection unit
122: communication department
123: sensor control unit
130: monitoring unit
131: server
132: national disease integrated management system
133: control center

Claims (10)

at least one or more individual devices installed in the target space;
at least one measuring device installed in the target space and measuring air quality in the target space; and
a monitoring unit for controlling the operation of the individual device by using the result measured by the measuring device and providing it to the user device;
Indoor air quality monitoring system for multi-use facilities, including
According to claim 1,
The individual device is
An indoor air quality monitoring system for a multi-use facility comprising at least one of an air purifier, a ventilation device, a humidifier, and a dehumidifier.
According to claim 1,
The measuring device is
a detection unit including a plurality of sensors for measuring indoor air quality; and
a communication unit for communication with the outside;
Indoor air quality monitoring system for multi-use facilities, including
4. The method of claim 3,
The detector measures radon (Rn), fine dust (PM10), total organic volatile compounds (TVOC), formaldehyde (HCHO), nitrogen dioxide (NO2), methane (CH4), carbon dioxide (CO2), temperature, and humidity. An indoor air quality monitoring system for a multi-use facility comprising one or more sensors among a plurality of sensors.
4. The method of claim 3,
The communication unit is an indoor air quality monitoring system for a multi-use facility using at least one selected from a local area network (LAN) including CDMA, Bluetooth, and WiFi, an infrared sensor, RFID, and NFC.
4. The method of claim 3,
The monitoring unit provides the value measured by the detection unit as an individual value or as an integrated value, an indoor air quality monitoring system for a multi-use facility.
According to claim 1,
Weight information for the target space is further stored in the monitoring unit,
The weight information further includes spatial information about the target space, occupant information, and external pollution information,
The monitoring unit is an indoor air quality monitoring system for a multi-use facility that differentially controls the operation of at least one or more individual devices installed in the target space by using the weight information.
8. The method of claim 7,
The occupant information is an indoor air quality monitoring system for a multi-use facility including the number of occupants of the target space and sensitive layer information.
9. The method of claim 8,
The sensitive layer information is an indoor air quality monitoring system for a multi-use facility including information provided from an external organization.
8. The method of claim 7,
The external pollution information is an indoor air quality monitoring system for a multi-use facility including external weather, yellow sand or fine dust concentration in the atmosphere.

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