KR102101711B1 - Ventilation system for predicting indoor radon - Google Patents

Abstract

The present invention relates to a variable air volume ventilation system for reducing radon, capable of simultaneously managing radon and energy efficiency while monitoring outdoor atmosphere environments and indoor environments at the same time, and a method thereof. According to the present invention, the variable air volume ventilation system for reducing radon comprises: a soil environment measurement module configured to measure environmental information data on the soil around a specific indoor space; an indoor environment measurement module configured to measure environmental information data on the specific indoor space; an indoor radon measurement module configured to measure radon concentration data on the specific indoor space; a meteorological office management server; and an indoor radon management server.

Description

VENTILATION SYSTEM FOR PREDICTING INDOOR RADON}

The present invention relates to a variable air volume ventilation system and method for reducing radon.

In general, radon (Rn) is a kind of natural radioactive gas that causes alpha decay with a half-life of 3.8 days, and has colorless, odorless, and inert properties, and mainly cracks in buildings from the ground of the building. It is introduced into the room through, but it is also generated from cement and soil used for building construction, and uranium decay products contained in other interior and exterior materials to enter the room.

When these radons enter the lungs through the respiratory tract, they kill cells in the lungs and cause cancer, so the World Health Organization (WHO) and the US Environmental Protection Agency (USEPA) smoke radon into lung cancer after smoking. It is recommended to control the concentration of radon in the indoor air, and it is defined as the main causative agent that causes. Radon is also present in outdoor air or groundwater, but exposure through indoor air accounts for about 95% of the total.

In other words, since radon has the heaviest gaseous properties on the planet, once it enters the room, it accumulates without escaping well, and through human breath, radon enters the lungs and collapses, releasing alpha radiation. It is an atomic nucleus (He2 +) that has weaker permeability than beta or gamma rays, but has a relatively large mass, causing destruction of lung cells.

On the other hand, in order to reduce the radon gas flowing into the room, periodic ventilation is mainly required by residents, but in the case of cold winter or at night, ventilation is not properly performed, so residents are exposed to radon gas and suffer serious damage. .

In particular, in the case of classrooms where students live in groups, radon gas is not systematically managed, which is a concern for students' health. In order to maintain the radon gas of 148 Bq / m 3 or less, radon is measured and a facility that reduces radon gas is mandatory.

As a conventional technique for managing indoor radon gas, there is an 'indoor radon removal device having an air purifier' announced in Korean Patent Office Registration No. 10-1569270 of Korean Intellectual Property Office (B1). This technology installs an air supply pipe that can supply fresh air to an indoor ceiling in a classroom or the like, and installs an air discharge pipe that sucks and discharges contaminated air to the floor, so that the air supplied through the air supply pipe passes through the air purifier. It is to supply air to the room.

In addition, the 'Radon Reduction Facility Integrated Control System' announced in Registration No. 10-1650436 is classified into a large category in which a plurality of radon reduction facilities are classified into a plurality of categories, a middle classification in which each category of a large classification is divided into a plurality of places, and a middle classification. A database is constructed by hierarchically classifying places into sub-classifications classified into a plurality of radon-influence factors, sequentially at least one place at a large classification level, at least one place at a medium classification level, and at least one radon influencer at a small classification level By selecting and consolidating and controlling multiple radon reduction facilities sequentially in each category unit, each place unit, and each radon impact factor unit, there are many scattered everywhere considering the characteristics of each place for radon exposure damage. It is to systematically manage and control radon reduction facilities.

In addition, 'Automatic ventilation facility for reducing radon concentration and a building having the same' disclosed in Publication No. 10-2016-0024076 in Patent Publication (A) includes a radon concentration measurement unit that measures a radon concentration value existing in an indoor space. , It is to provide an automatic ventilation facility for reducing radon concentration, including a ventilation unit to ventilate the indoor space so that the measured radon concentration value is a preset reference concentration value or a reference concentration increase rate.

In general, a radon gas reduction system installs a radon gas detection sensor for detecting radon gas in each room or classroom (or collectively referred to as measurement, hereinafter referred to as detection), and then ventilates each room or classroom according to the detected radon gas concentration. It is to control the back so that the concentration of radon gas in each room or classroom is maintained below a prescribed value.

However, since the radon gas detection sensor for detecting radon gas is usually expensive, when a radon gas detection sensor is installed in each room or classroom, there is a problem in that the overall cost of the radon gas reduction system is rapidly increased.

On the other hand, radon generated indoors is released in a certain pattern and is affected by environmental factors such as external weather. Due to these problems, the operation method of the ventilation system according to the indoor radon concentration has a very important effect on the reduction of radon.

In order to continuously reduce the emission of radon into the room continuously for 24 hours, it is necessary to quickly remove the radon accumulated in the room and apply ventilation in a way that pressurizes the room to prevent radon gas from entering the room.

However, if too high pressure is applied, the door does not close when the front door is opened, so ventilation of the simple positive pressure method should be careful because it causes secondary problems such as security problems.

In the case of domestic apartments or detached houses that are being built today, the sealing rate is very high at 90%, and it is legally required to install compulsory ventilation.

This ventilation system is designed to be equipped with a static pressure ventilation fan, which is minimally affected by the number of floors and the external environment, and is able to concentrate only on indoor and outdoor air ventilation. So, in the process of installing the product, there are many cases where the indoor sound pressure is formed in some products due to the internal piping installation problem.

Rather, these generations often find generations of more radon released in the room. The highest concentration of radon at home is from 10 pm to 5 am. This time is the peak of radon at home.

In this time period, indoor ventilation must be continuously provided, but there is a problem in that it is exposed to radon as it is because ventilation is not actively performed due to heating and cooling problems.

Of course, on the market, there is a total heat exchanger that increases energy efficiency by exchanging exhaust heat in the room through an exhaust fan with an air supply duct, but due to the characteristics of a ready-made product, the supply and exhaust volume of the total heat exchanger are specified, so there is a limit to precisely reduce radon. .

Domestic published patent No. 10-2016-0024076 Domestic registered patent No. 10-1650436 Domestic registered patent No. 10-1569270 B1

The present invention has been devised to solve the above-mentioned problems, and the object of the present invention is to simultaneously monitor the outdoor air environment and the indoor environment while simultaneously controlling radon and energy efficiency. And to provide a method.

In order to achieve the above object, the first aspect of the present invention is installed in the surrounding soil of a specific indoor space, a soil environment measurement module for measuring environmental information data of temperature and humidity for the surrounding soil of the specific indoor space; An indoor environment measurement module installed in a specific indoor space and measuring environmental information data of temperature and humidity for the specific indoor space; An indoor radon measurement module installed in a specific indoor space and measuring radon concentration data of the specific indoor space; A meteorological office management server that stores and manages big data information about the weather conditions around a specific indoor space in a database (DB); And receiving radon concentration data of the specific indoor space measured for a certain period from the indoor radon measurement module, based on this, generating a standard graph of radon average concentration by time for the specific indoor space, and radon average by the generated time zone. Concentration Annual standard graph reflects big data information about the surrounding weather conditions in the specific indoor space managed by the Meteorological Administration management server and environmental information data measured from the soil environment measurement module and the indoor environment measurement module, respectively. Estimated radon measurement values are calculated by applying a correction index for each set of environmental factors, and radon concentration prediction graphs for each time zone, day, month, and year are generated and databased based on the estimated radon measurements. Including indoor radon management server to store and manage,

The indoor radon management server provides a management service to operate a ventilation facility suitable for the radon deviation for each indoor space according to the radon concentration prediction graph for each time zone, day, month, and year of the generated specific indoor space, It analyzes the indoor scale and radon concentration pattern to calculate the optimal ventilation, and analyzes the information on the outdoor environment change and the indoor radon change to identify the indoor ventilation point and provides a management service to operate the ventilation facility. It is to provide a variable air volume ventilation system for reducing radon.

Here, the indoor radon management server controls the air supply amount to be higher than the exhaust amount to suppress the radon to be introduced into the indoor space, thereby suppressing the radon flowing into the room through positive pressure. It is desirable to suppress a little positive pressure and to prevent radon from entering the room.

Preferably, the indoor radon management server can provide a service that operates the ventilation facility while continuously changing the difference between the supply amount and the exhaust amount according to the change in the indoor radon according to the external environment and internal lifestyle. have.

Preferably, the indoor radon management server may provide a service that creates a pleasant indoor environment while reducing indoor radon by increasing both air supply and exhaust in the evening.

Preferably, the indoor radon management server minimizes air supply during sleep and minimizes supply disturbance through noise reduction by operating in a state where the exhaust is stopped, and the indoor inflow of radon through positive indoor pressure provided by variable ventilation. We can provide services that are minimal.

Preferably, the indoor radon management server may provide a service for removing and suppressing indoor radon by converting the air supply amount and the exhaust amount according to a pattern in which the radon is changed, rather than a simple operation of the predetermined ventilation amount.

The second aspect of the present invention is a variable air volume ventilation method for reducing radon using a system including a soil environment measurement module, an indoor environment measurement module, an indoor radon measurement module, and an indoor radon management server, (a) the soil Measuring environmental information data of temperature and humidity of the surrounding soil in a specific indoor space through the environmental measurement module; (b) measuring environmental information data of temperature and humidity for a specific indoor space through the indoor environment measurement module; (c) measuring radon concentration data of a specific indoor space through the indoor radon measurement module; (d) generating an annual standard graph of radon average concentration for each time zone of the specific indoor space based on radon concentration data of the specific indoor space measured for a period of time in the step (c) through the indoor radon management server; (e) The radon average concentration for each time zone generated in the step (d) through the indoor radon management server is displayed in the annual standard graph, and the big data information about the weather conditions around the specific indoor space managed by an external weather station management server and the Calculating estimated radon measurement values by reflecting environmental information data measured in steps (a) and (b) and applying a correction index for each environmental element; (f) Radon concentration prediction graph for each time zone, day, month, and year of the specific indoor space is generated based on the estimated radon measurement value calculated in step (e) through the indoor radon management server, and then it is databased. Storing and managing; (g) Through the indoor radon management server, according to the time zone, daily, monthly, and yearly radon concentration prediction graph of the specific indoor space generated in step (f), operate a ventilation facility suitable for the radon deviation for each indoor space. Providing management services to enable; And (h) analyzing the indoor scale and radon concentration pattern through the indoor radon management server to calculate the optimal ventilation amount, and analyzing the information on the outdoor environment change and the indoor radon change to identify the indoor ventilation time to determine the ventilation facility. It provides a variable air volume ventilation method for reducing radon, characterized in that it comprises the step of providing a management service to operate.

According to the air volume variable ventilation system and method for reducing radon of the present invention as described above, there is an advantage that can simultaneously manage the radon and energy efficiency while simultaneously monitoring the outdoor air environment and the indoor environment.

1 is an overall block configuration diagram for explaining an airflow variable ventilation system for reducing radon according to an embodiment of the present invention.
2 is a block diagram for specifically describing a soil environment measurement module applied to an embodiment of the present invention.
3 is a block diagram illustrating in detail the indoor environment measurement module applied to an embodiment of the present invention.
4 is a block diagram illustrating in detail the indoor radon measurement module applied to an embodiment of the present invention.
5 and 6 are overall flow diagrams for explaining a method of variable air volume ventilation for reducing radon according to an embodiment of the present invention.

The above-described objects, features, and advantages will be described in detail below with reference to the accompanying drawings, and accordingly, a person skilled in the art to which the present invention pertains can easily implement the technical spirit of the present invention. In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component. The terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

The terminology used in the present invention was selected from the general terms that are currently widely used while considering the functions in the present invention, but this may vary according to the intention or precedent of a person skilled in the art or the appearance of new technologies. In addition, in certain cases, some terms are arbitrarily selected by the applicant, and in this case, their meanings will be described in detail in the description of the applicable invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents of the present invention, not simply the names of the terms.

When a part of the specification "includes" a certain component, this means that other components may be further included instead of excluding other components unless specifically stated otherwise. In addition, terms such as “... unit” and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments of the present invention exemplified below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art.

Combinations of each block in the accompanying block diagrams and steps in the flow charts may be performed by computer program instructions (execution engines), which are executed by a general purpose computer, special purpose computer, or other programmable data processing equipment processor. Since it can be mounted, the instructions executed through a processor of a computer or other programmable data processing equipment create a means to perform the functions described in each block of the block diagram or in each step of the flowchart. These computer program instructions can also be stored in computer readable or computer readable memory that can be oriented to a computer or other programmable data processing equipment to implement functionality in a particular way, so that computer readable or computer readable memory The instructions stored in it are also possible to produce an article of manufacture containing instructions means for performing the functions described in each block of the block diagram or in each step of the flowchart.

In addition, since computer program instructions may be mounted on a computer or other programmable data processing equipment, a series of operation steps are performed on the computer or other programmable data processing equipment to create a process executed by the computer to generate a computer or other program. It is also possible for instructions to perform possible data processing equipment to provide steps for performing the functions described in each block of the block diagram and in each step of the flowchart.

In addition, each block or each step can represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical functions, and in some alternative embodiments referred to in blocks or steps It should be noted that it is possible for functions to occur out of sequence. For example, two blocks or steps shown in succession may in fact be performed substantially simultaneously, and it is also possible that the blocks or steps are performed in the reverse order of the corresponding function as necessary.

1 is an overall block configuration diagram for explaining a variable air volume ventilation system for reducing radon according to an embodiment of the present invention, and FIG. 2 is a detailed description of a soil environment measurement module applied to an embodiment of the present invention. Block configuration diagram, Figure 3 is a block diagram for specifically explaining the indoor environment measurement module applied to an embodiment of the present invention, Figure 4 is a detailed description of the indoor radon measurement module applied to an embodiment of the present invention It is a block diagram for doing this.

1 to 4, the air volume variable ventilation system for reducing radon according to an embodiment of the present invention, the soil environment measurement module 100, indoor environment measurement module 200, indoor radon measurement module 300 ), Meteorological Agency management server 400, and indoor radon management server 500, and the like. In addition, the air volume variable ventilation system for reducing radon according to an embodiment of the present invention may further include a manager terminal 20. On the other hand, since the components shown in FIG. 1 are not essential, the airflow variable ventilation system for reducing radon according to an embodiment of the present invention may have more components or less components.

Hereinafter, the components of the airflow variable ventilation system for reducing radon according to an embodiment of the present invention will be described in detail.

The soil environment measurement module 100 is installed in the surrounding soil of a specific indoor space (eg, a house, a building, or a school), and measures environmental information data such as temperature and humidity of the surrounding soil in the specific indoor space Perform a function.

As shown in FIG. 2, the soil environment measurement module 100 largely includes a soil environment measurement sensor unit 110, a wireless communication unit 120, a soil environment measurement control unit 130, and a power supply unit 140. Is done by In addition, the soil environment measurement module 100 applied to an embodiment of the present invention may further include a display unit 150, a storage unit 160, and the like. On the other hand, since the components shown in FIG. 2 are not essential, the soil environment measurement module 100 according to an embodiment of the present invention may have more components or fewer components.

Hereinafter, the components of the soil environment measurement module 100 applied to an embodiment of the present invention will be described in detail.

The soil environment measurement sensor unit 110 is installed in the surrounding soil of a specific indoor space, and performs a function of measuring environmental information data, such as temperature and humidity, about the surrounding soil of the specific indoor space.

The soil environment measurement sensor unit 110 is preferable to measure environmental information data such as temperature and humidity of the surrounding soil in the specific indoor space, but is not limited thereto, for example, air pressure, solar radiation, wind speed, wind direction, soil Environmental information such as moisture, soil salinity, or atmospheric fine dust can also be measured.

That is, the soil environment measurement sensor unit 110, for example, temperature measurement sensor, humidity measurement sensor, air pressure measurement sensor, solar radiation measurement sensor, wind speed measurement sensor, wind direction measurement sensor, soil moisture measurement sensor, soil salinity measurement sensor, fine dust measurement Equipped with sensors, etc., it is possible to collect and process environmental information on the surrounding soil in the specific indoor space.

In this case, the temperature measurement sensor is a sensor for measuring the temperature of the measurement object such as air, water or soil, and a thermistor element whose internal resistance value changes according to a change in ambient temperature may be used. The thermistor element may be a negative characteristic thermistor (NTC thermister), a positive characteristic thermistor (PTC thermistor), or a critical characteristic thermistor (CRT).

The temperature measurement sensor is preferably configured as a contact temperature sensor using a thermistor element, but is not limited thereto, and may be, for example, a thermocouple sensor, a bimetal, an IC temperature sensor, and a non-contact infrared sensor.

The humidity measurement sensor is a sensor for measuring humidity of an object to be measured, such as air or soil, and usually measures humidity using a change in electrical properties of a moisture-sensitive material due to moisture.

These humidity measurement sensors can be largely divided into resistance-type humidity sensors and capacitive-type humidity sensors, and are widely applied to make home and mobile devices, as well as automobiles and medical devices, air purification systems, and automatic heating and cooling systems in optimal conditions. Is becoming.

The resistance-type humidity sensor measures humidity using a change in resistance changed by humidity. This resistive humidity sensor has been used a lot because it has a relatively competitive price compared to a capacitive humidity sensor.

However, in recent years, as the capacitive humidity sensor can be manufactured in the form of a one chip on a semiconductor substrate, it is possible to secure a price competitive advantage over the resistive humidity sensor, and thus the usage is increasing. In particular, the capacitive humidity sensor has the advantage of being superior in reliability compared to the resistive humidity sensor, but having a linear sensor characteristic and little influence of temperature.

Such a capacitive humidity sensor is a sensor using a principle in which the capacitance changes according to the molecular weight of water adsorbed on a moisture absorbing film, and absorbs moisture such as polyimide or ceramic, whose dielectric constant changes when moisture is absorbed. It operates in the form of a capacitor made of dielectric material. That is, there is a moisture-sensitive layer that detects humidity, and it is a principle that detects that the dielectric constant changes and the capacitance changes accordingly as moisture enters through the moisture-sensitive layer.

The atmospheric pressure measurement sensor is a sensor for measuring atmospheric pressure, and is typically composed of a device in which resistance, current, or voltage changes according to atmospheric pressure, such as a piezoelectric element (Piezo), and outputs an atmospheric pressure measurement value as an appropriate voltage value.

The insolation measurement sensor is a sensor for measuring insolation in the air, and it is possible to measure the amount of light by detecting the amount of electricity generated by varying the charge value according to the amount of light, and in the form of a solar radiation sensor, about 0 to 1800 W / It is measured in the range of m ² and has an accuracy of about 5%.

The wind speed and wind direction measurement sensor is a sensor for measuring wind speed and wind direction in the air, and it is preferable to use a method of measuring wind speed and wind direction by measuring the cooling effect by wind as a temperature change using RTD (Resistive Temperature Detector). However, the present invention is not limited thereto, and a plurality of piezo sensors may be used to measure wind speed according to the degree to which the piezo sensor vibrates by the wind, as well as to determine the wind direction in vector.

The soil moisture measurement sensor is a sensor for measuring the moisture state information of the soil, such as moisture content of the soil, and the like. With a dielectric constant soil moisture measurement sensor that calculates each capacitance value according to the difference in dielectric constant and measures the frequency or period of the high frequency signal according to the calculated capacitance value to measure the moisture content in the soil through a predetermined formula. Although preferably made, it is not limited thereto, and may be, for example, a measurement sensor using an electrical resistance of an electrode in a gypsum block, a measurement sensor using neutron scattering, or the like. The moisture condition information of the soil measured by the soil moisture measurement sensor may be a pF value, a percentage (%), or a pressure unit.

The salinity measurement sensor is a sensor for measuring salinity (salt concentration) of a measurement object, and uses a principle in which electrical conductivity varies according to the amount of salinity, that is, the current flowing through the sample is inversely proportional to the resistance and proportional to the electrical conductivity. It can be implemented by converting the measured electrical conductivity to a concentration of salt.

The wireless communication unit 120 wirelessly transmits environmental information data, such as temperature and humidity, to the surrounding soil in the specific indoor space measured by the soil environment measurement sensor unit 110.

The wireless communication unit 120 includes, for example, a wireless LAN (WLAN) (Wi-Fi), a wireless broadband (Wibro), a world interoperability for microwave access (Wimax), a high speed downlink packet access (HSDPA), and a low-power wireless communication (Wireless Personal). Area network, WPAN (wireless Internet) communication method or the like, for example, Beacon (Beacon), ZigBee (ZigBee), Bluetooth (Bluetooth), UWB (Ultra Wideband), RFID (Radio Frequency Identification), infrared (IR) communication, etc. It can be implemented using a short-range wireless communication method.

The soil environment measurement control unit 130 controls the overall operation of the soil environment measurement module 100, performs various functions for the soil environment measurement module 100, and is stored in the storage unit 160 to process data. Various software programs and / or sets of instructions may be executed or executed. That is, the soil environment measurement control unit 130 may process various signals based on the information stored in the storage unit 160.

Also, the soil environment measurement control unit 130 may transmit and receive various signals from the wireless communication unit 120. That is, the soil environment measurement and control unit 130 may perform various calculations based on various signals transmitted and received from the wireless communication unit 120.

That is, the soil environment measurement control unit 130 controls the operation of the soil environment measurement sensor unit 110, the wireless communication unit 120, the display unit 150, and the storage unit 160, particularly the soil environment measurement sensor Controls the operation of the wireless communication unit 120 to receive environmental information data such as temperature and humidity for the surrounding soil of the specific indoor space measured in real time in real time and transmit it wirelessly to the indoor radon management server 500 To perform the function.

The power supply unit 140 supplies power required for each unit, that is, the soil environment measurement sensor unit 110, the wireless communication unit 120, the soil environment measurement control unit 130, the display unit 150, and the storage unit 160. As it performs a function, it is preferable to implement commercial AC (AC) power (eg, AC 220V) to be converted to DC (DC) and / or AC (AC) power for continuous power supply, but is not limited thereto. It can also be implemented with solar power supply or with a conventional portable battery.

The display unit 150 monitors the environment information data such as temperature and humidity of the surrounding soil in the specific indoor space measured by the soil environment measurement sensor unit 110 in real time under the control of the soil environment measurement control unit 130 in real time. It performs the function of displaying on the display screen for monitoring.

The display unit 150 includes, for example, a liquid crystal display (LCD), a light emitting diode display (LED), a thin film transistor liquid crystal display (Thin Film Transistor-Liquid Crystal Display, TFT LCD), an organic light emitting diode (Organic Light Emitting Diode, OLED), Flexible Display, Plasma Display Panel (PDP), Surface Alternating Lighting (ALiS), Digital Light Source Processing (DLP), Silicon Liquid Crystal (LCoS), Surface Conduction Type electron-emitting device display (SED), field emission display (FED), laser TV (quantum dot laser, liquid crystal laser), photoelectric liquid display (FLD), interferometric modulator display (iMoD), thick film dielectric electricity (TDEL), Quantum dot display (QD-LED), telescopic pixel display (TPD), organic light emitting transistor (OLET), laser fluorescent display (LPD), three-dimensional display (3D display) It may include at least one, but is not limited thereto, and any number can be included as long as it can display numbers or letters.

The storage 160 may include a program memory and a data memory. The program memory stores programs that control the general operation of the soil environment measurement module 100. At this time, the program memory may store a program for measuring environmental information data, such as temperature and humidity, for the surrounding soil in the specific indoor space through the soil environment measurement module 100.

In addition, the program memory is a program for driving the soil environment measurement sensor unit 110, the wireless communication unit 120, the display unit 150, and the storage unit 160 under the control of the soil environment measurement control unit 130. Can be saved. The data memory stores data generated while executing programs in the soil environment measurement module 100. Device data, channel information, frequency information, or network information may be stored in the data memory. In addition, unique module identification information of the soil environment measurement module 100 may be stored in the data memory of the storage unit 160.

In addition, the storage unit 160 may store environmental information data such as temperature and humidity of the surrounding soil in the specific indoor space measured by the soil environment measurement sensor unit 110 under the control of the soil environment measurement control unit 130. have.

That is, the storage unit 160 may store and maintain at least one program code executed through the soil environment measurement control unit 130 and at least one data set in which the program code is used.

The storage unit 160 includes, for example, a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (for example, SD or XD memory) Etc.), RAM (Random Access Memory, RAM), SRAM (Static Random Access Memory), ROM (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), And a readable storage medium of at least one type of magnetic memory, magnetic disk, and optical disk.

The indoor environment measurement module 200 is installed in a specific indoor space, and performs a function of measuring environmental information data such as temperature and humidity for the specific indoor space.

3, the indoor environment measurement module 200 largely includes an indoor environment measurement sensor unit 210, a wireless communication unit 220, an indoor environment measurement control unit 230, and a power supply unit 240. Is done by In addition, the indoor environment measurement module 200 applied to an embodiment of the present invention may further include a display unit 250, a storage unit 260, and the like. On the other hand, since the components shown in FIG. 3 are not essential, the indoor environment measurement module 200 applied to an embodiment of the present invention may have more components or less components.

Hereinafter, the components of the indoor environment measurement module 200 applied to an embodiment of the present invention will be described in detail.

The indoor environment measurement sensor unit 210 is installed in a specific indoor space and performs a function of measuring environmental information data such as temperature and humidity for the specific indoor space.

The indoor environment measurement sensor unit 210 preferably measures environmental information data, such as temperature and humidity, for the specific indoor space, but is not limited thereto. For example, the indoor environment measurement sensor unit 210 may also measure environmental information such as air pressure and fine dust. have.

That is, the indoor environment measurement sensor unit 210 may include, for example, a temperature measurement sensor, a humidity measurement sensor, an air pressure measurement sensor, a fine dust measurement sensor, and the like, and collect and process environmental information for a specific indoor space.

The wireless communication unit 220 wirelessly transmits environmental information data, such as temperature and humidity, for the specific indoor space measured by the indoor environment measurement sensor unit 210.

The indoor environment measurement control unit 230 controls the overall operation of the indoor environment measurement module 200, performs various functions for the indoor environment measurement module 200, and is stored in the storage unit 260 to process data. Various software programs and / or sets of instructions may be executed or executed. That is, the indoor environment measurement control unit 230 may process various signals based on the information stored in the storage unit 260.

Also, the indoor environment measurement control unit 230 may transmit and receive various signals from the wireless communication unit 220. That is, the indoor environment measurement control unit 230 may perform various calculations based on various signals transmitted and received from the wireless communication unit 220.

That is, the indoor environment measurement control unit 230 controls the operation of the indoor environment measurement sensor unit 210, the wireless communication unit 220, the display unit 250, and the storage unit 260, particularly, the indoor environment measurement sensor A function of controlling the operation of the wireless communication unit 220 to receive environmental information data, such as temperature and humidity for the specific indoor space, measured in real time from the unit 210 in real time and transmit it wirelessly to the indoor radon management server 500 Perform.

The power supply unit 240 supplies power required for each unit, that is, the indoor environment measurement sensor unit 210, the wireless communication unit 220, the indoor environment measurement control unit 230, the display unit 250, and the storage unit 260. As it performs a function, it is preferable to implement commercial AC (AC) power (eg, AC 220V) to be converted to DC (DC) and / or AC (AC) power for continuous power supply, but is not limited thereto. It can also be implemented with solar power supply or with a conventional portable battery.

The display unit 250 monitors the environment information data such as temperature and humidity for a specific indoor space measured by the indoor environment measurement sensor unit 210 under the control of the indoor environment measurement control unit 230 in real time. It performs the function of displaying on the display screen so that it can be done.

The storage unit 260 may include a program memory and a data memory. The program memory stores programs that control the general operation of the indoor environment measurement module 200. In this case, the program memory may store a program for measuring environmental information data such as temperature and humidity for a specific indoor space through the indoor environment measurement module 200.

The program memory is a program for driving the indoor environment measurement sensor unit 210, the wireless communication unit 220, the display unit 250, and the storage unit 260 under the control of the indoor environment measurement control unit 230. Can be saved. The data memory stores data generated while executing programs in the indoor environment measurement module 200. In this data memory, for example, module information, channel information, frequency information, or network information may be stored. In addition, unique module identification information of the indoor environment measurement module 200 may be stored in the data memory of the storage unit 260.

In addition, the storage unit 260 may store environmental information data such as temperature and humidity for a specific indoor space measured by the indoor environment measurement sensor unit 210 under the control of the indoor environment measurement control unit 230.

That is, the storage unit 260 may store and maintain at least one program code executed through the indoor environment measurement control unit 230 and at least one data set in which the program code is used.

The indoor radon measurement module 300 is installed in a specific indoor space and performs a function of measuring radon concentration data of the specific indoor space.

As shown in FIG. 4, the indoor radon measurement module 300 largely includes an indoor radon measurement sensor unit 310, a wireless communication unit 320, an indoor radon measurement control unit 330, and a power supply unit 340. Is done by In addition, the indoor radon measurement module 300 applied to an embodiment of the present invention may further include a display unit 350, a storage unit 360, and the like. On the other hand, since the components shown in FIG. 4 are not essential, the indoor radon measurement module 300 according to an embodiment of the present invention may have more components or less components.

Hereinafter, the components of the indoor radon measurement module 300 applied to an embodiment of the present invention will be described in detail.

The indoor radon measurement sensor unit 310 is installed in a specific indoor space and performs a function of measuring radon concentration data of the specific indoor space.

The indoor radon measurement sensor unit 310 is preferably made of, for example, an ionization chamber type radon measurement sensor, but is not limited thereto, for example, as a device for detecting alpha particles, a surface barrier type (Surface barrier type), high purity A type semiconductor detector (pure Ge), scintillation (scintillation) detector, solid state junction counter (solid state junction counter), or the like may be applied.

That is, the radon measurement sensor of the ionized chamber (pulsed ionization chamber) is a structure in which a probe-shaped electrode is installed in the center inside a cylindrical box made of metal and a bias voltage is applied between the metal cylinder and the inner probe to form an electric field.

When the alpha decay occurs inside the ionization chamber and the alpha particles are released, the alpha particles are extinguished due to collision with the air, but the ion charge is generated. The sensor itself is composed of a metal cylinder and a probe, so it is very inexpensive, durable, and irrelevant to light, so it has the advantage of good ventilation.

Looking at the surface barrier type detector, the surface of the semiconductor is formed with a depletion layer such as a p-n junction due to a surface level or an oxide film, so that the vicinity of the surface is an obstacle to charge transfer. As a practical example, gold is deposited on the surface of the n-type si at about 100 µm / cm 2 to make it one electrode, and radiation is incident on the back surface. Here, the thickness of the depletion layer is about 50 to 500 μm, and there are various types, and since energy loss on the surface is small, it is mainly used for detection of charged particles generated by alpha radiation and has good energy resolution.

The high purity semiconductor detector is also generally referred to as a pure Ge detector. It is a high-purity Ge crystal with very little impurity concentration or defects. It has a very high electrical resistance at low temperatures and a high bias voltage. The difference from Ge (Li) is that it can be stored at room temperature and cooled down with liquid nitrogen only for measurement, so it is easy to maintain, and its energy resolution is comparable to Ge (Li).

Looking at the scintillation detector, the phenomenon that the charged particles emit light when they hit a certain material has been known for a long time, but the emission by alpha radiation of zinc emulsion (ZnS) or NaI coating is particularly strong, and detection and counting are possible with a magnifying glass in the dark.

Such luminescence is called scintillation, and a substance exhibiting this phenomenon is called scintillator. The combination of a photomultiplier tube with a scintillator is called a scintillation detector, but a method used for counting as a pulse output is called a scintillation counter.

On the other hand, the method that reads the output in direct current is mainly used for dosimetry and uses a scintillator, so it is called a scintillation dosimeter, and any solid, liquid, or gas is used for the scintillator, and if a liquid is used, it is a liquid scintillation counting device. It says.

The solid junction counter is a solid reverse-biased p-n junction semiconductor that can be manufactured in a compact and mobile form with a counter designed to collect ionic charges from alpha particles passing through a depletion layer.

The wireless communication unit 320 performs a function of wirelessly transmitting radon concentration data of the specific indoor space measured by the indoor radon measurement sensor unit 310.

The indoor radon measurement control unit 330 controls the overall operation of the indoor radon measurement module 300, performs various functions for the indoor radon measurement module 300, and is stored in the storage unit 360 to process data. Various software programs and / or sets of instructions may be executed or executed. That is, the indoor radon measurement control unit 330 may process various signals based on information stored in the storage unit 360.

Also, the indoor radon measurement control unit 330 may transmit and receive various signals from the wireless communication unit 320. That is, the indoor radon measurement control unit 330 may perform various calculations based on various signals transmitted and received from the wireless communication unit 320.

That is, the indoor radon measurement control unit 330 controls the operation of the indoor radon measurement sensor unit 310, the wireless communication unit 320, the display unit 350, and the storage unit 360, in particular, the indoor radon measurement sensor The radon concentration data of the specific indoor space measured by the unit 310 is provided in real time to control the operation of the wireless communication unit 320 to be wirelessly transmitted to the indoor radon management server 500.

In addition, the indoor radon measurement control unit 330, the radon of the indoor radon measurement sensor unit 310 when measuring radon, the filter for separating the radon's autonuclides (not shown) according to the following equation 1 It can perform the function of calculating the amount of fine dust in the indoor space.

(Equation 1)

Total radon amount = pure radon amount + Radon nuclides attached to fine dust

Here, the amount of pure radon is the amount of radon from which radon nuclides, which are substances when radon collapse, is measured by attaching to fine dust using a filter for separating radon's autonuclides during radon measurement.

That is, the ionization chamber type radon meter measures the alpha ray emitted from radon gas in the indoor space. When measuring radon, separate the total amount of radon from the amount of pure radon. The total amount of radon is calculated from both the alpha ray emitted from radon gas and the alpha ray emitted from radon nuclides generated after the radon gas collapses.

Basically, the ionization chamber type radon measuring instrument measures all alpha rays, so when radon is measured, a radon filter is used to separate the radon's autonuclides. Measure the amount of radon.

Using these characteristics of radon, it is possible to determine the amount of radon progeny by comparing the filter to a radon meter with a radon meter equipped with a variable or filter filter and a radon meter without a filter.

Through the above equation 1, the amount of fine dust in the indoor space can be measured. On the other hand, the existing fine dust measurement method distinguishes the total amount of dust and the amount of fine dust by classifying the amount and size of dust by the light scattering method, but it is difficult to use as a long-term monitoring sensor because it is difficult to maintain and maintain the optical sensor. There was.

In order to solve this problem, it is difficult to distinguish the type of dust when indoor dust prediction using a radon measurement sensor is used, but it can be used as a stable and durable fine dust meter, and with radon measurement sensor, radon measurement and fine dust prediction can be performed simultaneously. It is very effective.

The power supply unit 340 supplies power required for each unit, that is, the indoor radon measurement sensor unit 310, the wireless communication unit 320, the indoor environment measurement control unit 330, the display unit 350, and the storage unit 360. As it performs a function, it is preferable to implement commercial AC (AC) power (eg, AC 220V) to be converted to DC (DC) and / or AC (AC) power for continuous power supply, but is not limited thereto. It can also be implemented with solar power supply or with a conventional portable battery.

The display unit 350 is displayed on a display screen so that an administrator can monitor in real time the radon concentration data of the specific indoor space measured by the indoor environment measurement sensor unit 310 under the control of the indoor environment measurement control unit 330. Display function.

The storage unit 360 may include a program memory and a data memory. The program memory stores programs that control the general operation of the indoor radon measurement module 300. In this case, the program memory may store a program for measuring radon concentration data of a specific indoor space through the indoor radon measurement module 300.

In addition, the program memory is a program for driving the indoor radon measurement sensor unit 310, the wireless communication unit 320, the display unit 350, and the storage unit 360 under the control of the indoor radon measurement control unit 330. Can be saved. The data memory stores data generated while executing programs in the indoor radon measurement module 300. In this data memory, for example, module information, channel information, frequency information, or network information may be stored. In addition, unique module identification information of the indoor radon measurement module 300 may be stored in the data memory of the storage unit 360.

In addition, the storage unit 360 may store radon concentration data of a specific indoor space measured by the indoor radon measurement sensor unit 310 under the control of the indoor radon measurement control unit 330.

That is, at least one program code executed through the indoor radon measurement control unit 330 and at least one data set in which the program code is used may be stored and stored in the storage unit 360.

The meteorological office management server 400 performs a function of storing and managing Big Data information on a surrounding indoor weather in a specific indoor space as a database (DB).

In addition, the big data information about the surrounding weather conditions of a specific indoor space stored and managed by the meteorological office management server 400 includes, for example, at least one of temperature, humidity, air pressure, fine dust, precipitation, or snowfall. desirable.

In addition, the indoor radon management server 500 receives radon concentration data of a specific indoor space measured for a certain period from the indoor radon measurement module 210, and based on this, the average radon concentration for each time zone of the specific indoor space is a standard graph for a year It performs the function of generating.

In addition, the indoor radon management server 500 generates big data information and soil environment measurement module for surrounding weather conditions in a specific indoor space managed by the meteorological agency management server 400 in the annual standard graph of radon average concentration for each time zone generated ( 100) and reflects the environmental information data measured from the indoor environment measurement module 200, and also performs a function of calculating the estimated radon measurement value by applying a preset correction factor for each environmental element.

In addition, the indoor radon management server 500 generates a radon concentration prediction graph for each time zone, day, month, and / or year of the specific indoor space based on the calculated estimated radon measurement value and stores it in a database (DB) And performs a management function.

In addition, the indoor radon management server 500 operates a ventilation facility (not shown) corresponding to the radon deviation for each indoor space according to the radon concentration prediction graph for each time zone, day, month, and / or year of the generated specific indoor space. It can perform the function of providing management services.

At this time, the ventilation facility drives any one or more selected ones among at least one ventilation unit provided by a specific control signal output from the indoor radon management server 500. In addition, the ventilation facility is connected to the outside of one side of the residential space, the first external ventilation unit (not shown), which is a ventilator facility that discharges indoor air to the outside or introduces fresh air into the room, and the outside of the other side of the residential space. A second external ventilation unit (not shown), which is a ventilator facility that is connected to and discharges indoor air to the outside or introduces fresh air into the room, and is installed indoors to discharge internal air to the outside or fresh air outside After the filtering process, an indoor ventilation unit (not shown), which is a ventilation facility, may be included.

In addition, the indoor radon management server 500 may calculate the estimated radon measurement value by Equation 2 below.

(Equation 2)

Estimated Radon Measurement = Standard Radon Concentration Measurement × Corrected Environment Index

Here, the standard radon concentration measurement value is a value obtained by standardizing a calibrated radon concentration measurement value of 48 hours or more on a 24-hour basis, and the calibrated radon concentration measurement value is calculated as "radon concentration measurement × environmental index", and the radon concentration The measured value is calculated as “number of alpha lines × radon concentration conversion index”, and the environmental index is calculated as “temperature deviation index + humidity deviation index + fine dust deviation index + air pressure deviation index + precipitation index + snowfall index”, and the temperature The deviation index is calculated as "(indoor temperature-outdoor temperature) × temperature deviation weight", and the humidity deviation index is calculated as "outdoor humidity × humidity weight + (indoor humidity-outdoor humidity) × humidity deviation weight", and the fine The dust deviation index is calculated as "indoor fine dust × fine dust weight + (outdoor fine dust-indoor fine dust) × fine dust deviation weight (indoor fine dust <in case of fine particulate matter)", the atmospheric pressure deviation index It is calculated as "(outdoor air pressure-indoor air pressure) x atmospheric pressure deviation weight", and the precipitation index is calculated as "precipitation amount × radon impact index × precipitation weight", and the snowfall index is "snowfall × radon impact index × snowfall weight" The calculated environmental index is calculated as "(1-current environmental index / standard environmental index) × environmental weight".

At this time, in the calculation of the fine dust deviation index, in the case of indoor fine dust> indoor fine dust, it is preferable that it is calculated as "indoor fine dust × fine dust weight".

On the other hand, the aforementioned radon concentration conversion index, temperature deviation weight, humidity weight, humidity deviation weight, fine dust weight, fine dust deviation weight, air pressure deviation weight, precipitation weight, snowfall weight, and environmental weight are applied environmental changes (e.g. , Indoor or outdoor, etc., and preferably has a value between 0 and 1, but is not limited thereto.

That is, the weights described in this embodiment are temperature deviation index, humidity deviation index, and fine dust deviation index for calculating the environmental index according to the environment (eg, temperature, humidity, fine dust, air pressure, precipitation, snowfall, etc.). , Barometric Deviation Index, Precipitation Index, Snowfall Index, etc., which are set by the user to determine the measured value for each environment and the indoor / outdoor deviation value (e.g., indoor / outdoor temperature deviation value, outdoor humidity measurement value, indoor / Outdoor humidity deviation value, indoor fine dust measurement value, indoor / outdoor fine dust deviation value, indoor / outdoor air pressure deviation value, precipitation measurement value, snowfall measurement value, etc. Can be applied. The environmental weights can be determined to be optimal values through simulation.

In addition, the radon concentration conversion index is a value set by a user to calculate and determine a radon concentration measurement value (unit: pCi / l (Bq / m ³ )) as a numerical value, and the specific gravity of a predetermined value to the number of measured alpha rays The radon concentration conversion index can be applied by multiplying. Such, the radon concentration conversion index can be determined as the optimal value through simulation.

Also, the indoor radon management server 500 compares and analyzes the calculated estimated radon measurement value and the actual radon measurement value measured by the indoor radon measurement sensor unit 310 provided in the indoor radon measurement module 300, and sets a predetermined criterion. Provides a management service to notify the administrator terminal 20, which is set in the indoor radon measurement module 300, of the indoor radon measurement sensor unit 300, through the communication network 10, with a regular calibration diagnosis time. Can perform the function.

At this time, the communication network 10 is a communication network that is a high-speed period network of a large communication network capable of large-capacity, long-distance voice and data services, and is provided with Wi-Fi, WiGig, for providing the Internet or high-speed multimedia services. It may be a next-generation wireless communication network including WiBro (Wireless Broadband Internet, Wibro), WiMax (World Interoperability for Microwave Access, Wimax), and the like.

The Internet is a TCP / IP protocol and various services existing in the upper layer, namely, HTTP (Hyper Text Transfer Protocol), Telnet, File Transfer Protocol (FTP), Domain Name System (DNS), Simple Mail Transfer Protocol (SMTP), Refers to a global open computer network structure that provides Simple Network Management Protocol (SNMP), Network File Service (NFS), Network Information Service (NIS), etc., and the administrator terminal 20 accesses the indoor radon management server 500 It provides an environment that makes it possible. Meanwhile, the Internet may be a wired or wireless Internet, or may be a core network integrated with a wired public network, a wireless mobile communication network, or a portable Internet.

If the communication network 10 is a mobile communication network, it may be a synchronous mobile communication network or an asynchronous mobile communication network. An example of the asynchronous mobile communication network is a wideband code division multiple access (WCDMA) communication network. In this case, although not shown in the drawings, the mobile communication network may include, for example, a radio network controller (RNC). Meanwhile, although the WCDMA network is taken as an example, it may be a next-generation communication network such as a cellular-based 3G network, an LTE network, a 4G network, a 5G network, or an IP network based on other IPs. The communication network 10 serves to transfer signals and data between the manager terminal 20 and the indoor radon management server 500.

In addition, the indoor radon management server 500 may perform a function of analyzing the indoor scale and radon concentration pattern to find the optimal ventilation amount.

In addition, the indoor radon management server 500 may perform a function of analyzing the indoor environment change and indoor radon change information to determine the indoor ventilation point.

In addition, the indoor radon management server 500 may perform a function of performing ventilation for discharging radon accumulated in the existing room.

In addition, the indoor radon management server 500 may perform a function of suppressing radon flowing into the room through positive pressure by adjusting the air supply amount higher than the displacement in order to suppress the radon flowing into the indoor space. That is, when the amount of air supplied to the room is greater than the displacement, the room is slightly positively pressured, which has the effect of suppressing the introduction of radon into the room.

In addition, since the indoor radon change varies according to the external environment and the internal lifestyle, the indoor radon management server 500 performs a function of operating the ventilation facility while continuously varying the difference between the air supply amount and the exhaust amount. can do.

In addition, the indoor radon management server 500 may perform a function of increasing the air supply amount and the exhaust amount in the evening hours to reduce the indoor radon while creating a comfortable indoor environment.

In addition, the indoor radon management server 500 minimizes air supply during sleep and operates in a state where the exhaust is stopped to minimize sleep disturbance through noise reduction, and the indoor inflow of radon through positive indoor pressure provided by variable ventilation. You can perform the function that minimizes it.

That is, the indoor radon management server 500 may perform a function of removing and suppressing the indoor radon by converting the supply amount and the exhaust amount according to a pattern in which the radon is changed, rather than simply operating the predetermined ventilation amount.

In addition, a sensor (not shown) that checks the opening and closing of the front door and the bottom door is installed to prevent the sliding of the front door and the auxiliary door, which is a problem when the ventilation system using the indoor positive pressure method is operated. By increasing the displacement rather than the supply air for ~ 5 minutes, the room can be turned into a negative pressure for a while to help open and close the door to minimize the door sliding problem.

On the other hand, the manager terminal 20 applied to an embodiment of the present invention is at least one of a smart phone (Smart Phone), smart pad (Smart Pad) or smart note (Smart Note) to communicate through the wireless Internet or the mobile Internet It is preferably made of a mobile terminal device, in addition to a personal PC, notebook PC, Palm (PC), mobile game machine (Mobile play-station), DMB (Digital Multimedia Broadcasting) phone with a communication function, tablet PC, iPad (iPad ), Etc. may refer to all wired and wireless home appliances / communication devices having a user interface for access to the indoor radon prediction management server 500.

Hereinafter, a method of variable air volume ventilation for reducing radon according to an embodiment of the present invention will be described in detail.

5 and 6 is an overall flow chart for explaining a method of variable air volume ventilation for radon reduction according to an embodiment of the present invention.

Referring to Figures 1 to 6, the air volume variable ventilation method for reducing radon according to an embodiment of the present invention, first, through the soil environment measurement module 100, temperature and humidity, etc. for the surrounding soil in a specific indoor space Measure the environmental information data of (S100).

Subsequently, environmental information data such as temperature and humidity for a specific indoor space is measured through the indoor environment measurement module 200 (S200).

Then, the radon concentration data of a specific indoor space is measured through the indoor radon measurement module 300 (S300).

Next, through the indoor radon management server 500, based on the radon concentration data of the specific indoor space measured for a certain period in step S300, a standard graph of radon average concentration for each specific indoor space is generated annually (S400). ).

Subsequently, the radon average concentration for each time zone generated in the step S400 through the indoor radon management server 500 is big data on the weather conditions around the specific indoor space managed by the external weather station management server 400 in the annual standard graph. In addition to reflecting the information and environmental information data measured in steps S100 and S200, the estimated radon measurement value is calculated by applying a predetermined correction factor for each environmental element (S500).

At this time, in step S500, the indoor radon management server 500 may calculate the estimated radon measurement value by Equation 3 below.

(Equation 3)

Estimated Radon Measurement = Standard Radon Concentration Measurement × Corrected Environment Index

Here, the standard radon concentration measurement value is a value obtained by standardizing a calibrated radon concentration measurement value of 48 hours or more on a 24-hour basis, and the calibrated radon concentration measurement value is calculated as "radon concentration measurement × environmental index", and the radon concentration The measured value is calculated as “number of alpha lines × radon concentration conversion index”, and the environmental index is calculated as “temperature deviation index + humidity deviation index + fine dust deviation index + air pressure deviation index + precipitation index + snowfall index”, and the temperature The deviation index is calculated as "(indoor temperature-outdoor temperature) × temperature deviation weight", and the humidity deviation index is calculated as "outdoor humidity × humidity weight + (indoor humidity-outdoor humidity) × humidity deviation weight", and the fine The dust deviation index is calculated as "indoor fine dust × fine dust weight + (outdoor fine dust-indoor fine dust) × fine dust deviation weight (indoor fine dust <in case of fine particulate matter)", the atmospheric pressure deviation index It is calculated as "(outdoor air pressure-indoor air pressure) x atmospheric pressure deviation weight", and the precipitation index is calculated as "precipitation amount × radon impact index × precipitation weight", and the snowfall index is "snowfall × radon impact index × snowfall weight" The calculated environmental index is calculated as "(1-current environmental index / standard environmental index) × environmental weight".

At this time, in the calculation of the fine dust deviation index, in the case of indoor fine dust> indoor fine dust, it is preferable that it is calculated as "indoor fine dust × fine dust weight".

On the other hand, in step S500, the big data information about the surrounding weather conditions of a specific indoor space stored and managed by the external weather station management server 400 is, for example, at least one of temperature, humidity, air pressure, fine dust, precipitation, or snowfall. It is desirable to include one piece of information.

Then, based on the estimated radon measurement value calculated in step S500 through the indoor radon management server 500, the radon concentration prediction graph for the time zone, day, month, and / or year of the specific indoor space is generated and then the database is generated. (DB) to save and manage (S600).

Next, through the indoor radon management server 500 to operate a ventilation facility that fits the radon deviation for each room space according to the radon concentration prediction graph for each time zone, day, month, and year of the specific room space generated in step S600. To provide management services (S700).

Subsequently, the indoor radon management server 500 analyzes the indoor scale and radon concentration pattern to calculate the optimal ventilation amount, and analyzes information on the outdoor environment change and the indoor radon change to identify the indoor ventilation time to identify the ventilation point. It provides a management service to operate the equipment (S800).

Additionally, although not shown in the drawings, after the step S500, the indoor radon measurement sensor unit provided in the indoor radon measurement module 300 and the estimated radon measurement value calculated in the step S500 through the indoor radon management server 500 ( If the actual radon measurement value measured from 310) is greater than a preset reference deviation value, the administrator terminal for the periodic calibration diagnosis of the indoor radon measurement sensor unit 310 provided in the indoor radon measurement module 300 is preset. It may further include the step of providing a management service to notify (20).

Moreover, after the step S700 or the step S800, by controlling the air supply amount higher than the displacement to suppress the radon to be introduced into the indoor space through the indoor radon management server 500, the radon flowing into the room is suppressed through positive pressure. When the amount of air supplied to the room is greater than the displacement, the room may be subjected to a slight positive pressure, and may further include a step of suppressing radon from entering the room.

In addition, after the step S700 or the step S800, through the indoor radon management server 500, ventilation while continuously changing the difference between the supply amount and the exhaust amount according to the change of the indoor radon according to the external environment and internal lifestyle It may further include the step of providing a service for operating the equipment.

In addition, after the step S700 or the step S800, through the indoor radon management server 500 further increases the air supply and exhaust in the evening time to reduce the indoor radon while providing a service that provides a comfortable indoor environment. It may include.

In addition, after the step S700 or the step S800, the indoor radon management server 500 minimizes air supply during sleep and operates in a state in which exhaust is stopped to minimize sleep disturbance through noise reduction and variable ventilation. It may further include the step of providing a service that minimizes the indoor inflow of radon through positive indoor pressure.

In addition, after the step S700 or the step S800, the ventilation amount determined through the indoor radon management server 500 is not simply operated, but the air supply amount and displacement are changed according to the changing pattern of radon to remove indoor radon. And providing a restraining service.

Although the preferred embodiment of the air volume variable ventilation system and method for reducing radon according to the present invention described above has been described, the present invention is not limited to this, and is within the scope of the claims and detailed description of the invention and the accompanying drawings. It is possible to carry out modifications in various ways, and this also belongs to the present invention.

100: soil environment measurement module,
200: indoor environment measurement module,
300: indoor radon measurement module,
400: Meteorological Agency management server,
500: indoor radon management server

Claims (15)

An indoor radon measurement module installed in a specific indoor space and measuring radon concentration data of the specific indoor space; And
The radon concentration data of the specific indoor space measured for a certain period of time is provided from the indoor radon measurement module, and based on this, a standard graph of radon average concentration for each specific indoor space is generated annually and stored in database to store and manage it. Includes a radon management server,
The indoor radon management server analyzes the indoor scale and radon concentration pattern to calculate the optimal ventilation amount, and analyzes information on the outdoor environment change and the indoor radon change to identify the indoor ventilation point and manage the ventilation facilities to operate. Provides service, minimizes air supply during sleep and operates while the exhaust is stopped to minimize sleep disturbance through noise reduction, and provides a service that minimizes indoor inflow of radon through positive indoor pressure provided by variable ventilation. Provides a service that removes and suppresses radon in the room by converting air supply and exhaust according to the pattern of changing radon, rather than simply operating a predetermined amount of ventilation.
The ventilation facility drives any one or more selected ones of at least one ventilation unit by a specific control signal output from the indoor radon management server, and is connected to one outside of the residential space to outside the indoor air. And a first external ventilation unit that discharges fresh air from the outside into the room, and a second external ventilation unit that is connected to the outside of the living space to discharge the indoor air to the outside or introduces fresh fresh air into the room. , It is installed in the room, the air volume variable ventilation system for reducing radon, characterized in that it comprises an indoor ventilation unit that discharges the inside air to the outside or flows the fresh air outside after filtering.
delete delete delete According to claim 1,
The indoor radon measurement module,
An indoor radon measurement sensor unit installed in a specific indoor space and measuring radon concentration data of the specific indoor space;
A wireless communication unit wirelessly transmitting radon concentration data of the specific indoor space measured from the indoor radon measurement sensor unit; And
It includes an indoor radon measurement and control unit for controlling the operation of the wireless communication unit to receive the radon concentration data of the specific indoor space measured in real time from the indoor radon measurement sensor unit and wirelessly transmit it to the indoor radon management server,
The indoor radon measurement sensor unit, air volume variable ventilation system for reducing radon, characterized in that consisting of a radon measurement sensor of the ionization chamber method.
delete According to claim 1,
The indoor radon management server compares and analyzes the calculated estimated radon measurement value and the actual radon measurement value measured from the indoor radon measurement sensor unit provided in the indoor radon measurement module, and when the indoor radon is greater than a predetermined reference deviation value, the indoor radon The air volume variable ventilation system for reducing radon, characterized in that it provides a management service to inform the administrator terminal of the periodic calibration diagnosis of the indoor radon measurement sensor unit provided in the measurement module.
According to claim 1,
The indoor radon management server controls the air supply amount to be higher than the exhaust amount to suppress radon to be introduced into the indoor space, thereby suppressing the radon flowing into the room through positive pressure. Air pressure variable ventilation system for reducing radon, characterized in that to suppress the positive pressure of the radon is introduced into the room.
According to claim 1,
The indoor radon management server is characterized in that it provides a service for operating the ventilation facility while continuously varying the difference between the supply amount and the exhaust amount according to the radon change in the room according to the external environment and internal lifestyle. Variable air volume ventilation system to reduce radon.
According to claim 1,
The indoor radon management server, air volume variable ventilation system for reducing radon, characterized in that to provide a service that creates a pleasant indoor environment while reducing the indoor radon by increasing both air supply and exhaust in the evening.
delete delete delete delete delete

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