KR101957986B1 - Radon detection and removal system using baseboard exhaust device - Google Patents

Abstract

The present invention relates to a system for detecting radon and removing the detected radon through a baseboard exhaust device, including: a plurality of radon detection sensors installed in a room to detect the radon in indoor air; a ventilation device installed in a baseboard in the room to discharge the indoor air toward an outdoor side according to a detection result of the radon detection sensor; and a microcomputer for controlling driving of the radon detection sensor and the ventilation device, wherein the microcomputer allow the ventilation device to perform a normal rotation or a reverse rotation according to the detection result of the radon detection sensor so as to ventilate the indoor air. Accordingly, when the radon is detected by the radon detection sensor, the ventilation device is driven to perform the normal rotation or the reverse rotation such that ventilation is performed from an indoor side to the outdoor side or from the outdoor side to the indoor side, so that the radon contained in the indoor air is automatically discharged to the outdoor side to prevent the radon from being inhaled in a living space.

Description

TECHNICAL FIELD [0001] The present invention relates to a radon detection system and a radon detection system,

The present invention relates to a radon detection system for detecting radon in an indoor air of a building and removing radon through a ventilation system, and a system for removing the radon by using a radon exhaust system.

Radon (Rn) is a naturally occurring, colorless, odorless, tasteless, water soluble radioactive gas with an atomic mass of 219, 220 and 222, which are radioactive decay products of U-235, Th-232 and U- Since there is a large mobility and heavier weight than air, it is likely to be easily absorbed by people.

In other words, radon disappears naturally when a certain period of time (for example, 3 days) elapses in the atmosphere, but when it is indoors, it becomes a cause of second lung cancer following smoking, , There is a serious problem in that the radon can be damaged by the radiation generation and the radon can be constantly introduced into the indoor space by the soil gas, building material, ground water, etc., and distributed in any space on the earth.

However, even though the problem of radon radioactivity is serious, it is rarely recognized by the general public in Korea, and regulatory measures by the government are also insufficient, so that many people inhabit health by inhaling radon without knowing themselves in ordinary indoor space .

Japanese Patent Laid-Open Publication No. 10-2018-0059642 (published on June 28, 2018)

An object of embodiments of the present invention to remedy the above-mentioned problems is to provide an air conditioner which is capable of performing forward rotation or reverse rotation of the ventilator so that ventilation is performed from the indoor side to the outdoor side or from the outdoor side to the indoor side when the radon is detected by the radon detection sensor So that the radon contained in the air on the indoor side can be automatically discharged to the outdoor side to prevent the radon from being sucked in the living space, and to provide a removal system using the detected radon mop base exhaust device.

It is another object of embodiments of the present invention to provide a radon detection system for detecting the normal operation of the ventilator device according to the radon detection, thereby improving the efficiency of radon removal while preventing operation errors of the radon removal, And to provide a removal system through a receiver exhaust system.

In order to achieve the above object, according to an embodiment of the present invention, a radon detection system and a radon detaching system using the apparatus for exhausting a radon can include a plurality of radon detection sensors installed in a room for detecting radon in indoor air; A ventilating device installed in a rack base in the room for discharging the indoor air toward the outdoor side according to the detection result of the radon detecting sensor; And a micom for controlling driving of the radon detection sensor and the ventilator. The micom can ventilate the indoor air by forward or reverse rotation of the ventilator according to the detection result of the radon detection sensor.

The ventilating apparatus may include an inlet fan or a discharge fan for sucking air, and a filter device including a pre-filter, a deodorizing filter, and a hepar filter may be further provided on a front surface or a rear surface of the inlet fan or the discharge fan.

The radon detection system and the system for removing radon detected by the radome are further provided with an oxygen sensor installed in the room for sensing the amount of oxygen in the room air, And the ventilator can be rotated forward or backward only when the radon detection amount and the oxygen amount are outside the reference range as a result of detection by the radon detection sensor and the oxygen detection sensor.

Wherein the microcomputer is connected to an external terminal through a wireless communication network and is controlled by a user input through a status monitoring application of the external terminal, wherein the external terminal transmits and receives data to and from the microcomputer in a resource block allocated to a wireless uplink time slot, If the sum of the transmission rate to the microcomputer and the transmission rate to the base station is greater than the transmission rate to the predetermined maximum base station, the transmission to the microcomputer and the transmission / And controls the transmission power to the microcomputer and the transmission power of the base station so as to increase the total transmission speed which is a sum of the transmission speed with the microcomputer and the transmission speed with the base station, And a value obtained by adding the transmission rate to the maximum base station Is less than the transmission speed may be to perform a transmission and a transmission with the base station with the microcomputer in different resource blocks.

The radon detection and detection system according to an embodiment of the present invention can detect the radon from the indoor side to the outdoor side or from the outdoor side to the indoor side when the radon is detected by the radon detection sensor The radar contained in the air on the indoor side can be automatically discharged to the outdoor side, thereby preventing the radon from being sucked in the living space.

In addition, an embodiment of the present invention is configured to detect whether the ventilator is normally driven according to the radon detection, thereby improving the efficiency of radon removal while preventing operation errors of the radon removal.

FIG. 1 is a block diagram schematically illustrating a radon detection system and a removal system using the detected radon mop base exhaust system according to an embodiment of the present invention. Referring to FIG.
FIG. 2 is a block diagram showing a ventilation system in a system for removing radon and detecting a radon according to an embodiment of the present invention.
FIG. 3 is a view illustrating an installation configuration of a radon detection system and a removal system using the detected radon mop base exhaust apparatus according to an embodiment of the present invention.
4 is a flowchart illustrating a radio communication method between a microcomputer, a user terminal, and a base station in a removal system using radon detection and radon mopping apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed to mean, or be interpreted in an excessively reduced sense. In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms can be understood by those skilled in the art. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Furthermore, the singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as "comprising" or "comprising" and the like should not be construed as encompassing various elements or various steps of the invention, Or may further include additional components or steps.

Furthermore, terms including ordinals such as first, second, etc. used in the present invention can be used to describe elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

FIG. 1 is a block diagram schematically showing a radon detection system and a system for removing radon through a mop base exhausting apparatus according to an embodiment of the present invention. FIG. 2 is a schematic view of a radon detection and detection system according to an embodiment of the present invention. FIG. 3 is a block diagram illustrating an installation of a radon detaching system according to an embodiment of the present invention. FIG. FIG. 4 is a flowchart illustrating a radio communication method between a microcomputer, a user terminal, and a base station of a radon detection system and a removal system using the detected radon mopping apparatus according to an embodiment of the present invention.

As shown in FIGS. 1 and 3, the radon detection and detection system according to an embodiment of the present invention includes a radon detection sensor 10, an air vent 40, a microcomputer 30 and an external terminal 50.

The radon detecting sensor 10 is installed in a plurality of buildings in the building, and detects the radon in the room air and then transmits detection information thereof to the microcomputer 30.

The radon detecting sensor 10 senses the radon concentration present in the room in real time. The radon detecting sensor 10 sends a signal to the microcomputer 30 when the radon concentration in the room exceeds a reference value.

Meanwhile, at least one or more radon detecting sensors 10 may be installed in a lower region of a room, but the installation position and the number of the radon detecting sensors 10 may be appropriately adjusted as needed.

In one embodiment, although not shown, the radon detection sensor 10 is a module that detects radon gas present in a room through periodical communication during a measurement set time according to a command from the microcomputer 30 A parameter setting unit for preliminarily setting a measurement time interval and a final measurement time to be actually measured and inputting a radon content value of the room through an indoor air radon meter; A radon content calculating unit for calculating the radon content present in the room by matching the data detected from the radon gas detecting unit with the initial radon content value of the parameter setting unit and matching the preset value with the initial radon content value of the parameter setting unit, (Or the reference content value), the set measurement time interval and the final measurement time, and the radon content calculation unit A memory for storing operation programs of the indoor air radon meter and a user input application program (Man Machine Interface: MMI) for storing the radon content data, and a microcomputer 30 for storing the radon content data stored in the memory, And the like.

The radon detecting sensor 10 may be connected to the micom 30 through a wired network or a wireless network and may be communicatively connected through a wireless network. For this purpose, a radon detecting sensor 10 A module for communicating with the microcomputer 30 is configured.

In one embodiment, the radon detection sensor 10 may be connected to the microcomputer 30 through a LoRa (Long Range) network when the radon 10 is distributed in a wide indoor area. This LoRa (Long Range) is one of the low power long distance communication technologies, which means IoT dedicated network technology with wide coverage, low bandwidth, long battery life and low power.

Here, the LoRa communication network can be composed of various Internet relay devices such as a LoRa base station and a LoRa gateway. The method of compressing sensed data may include extracting position information of a first data value from a first data value occupying the largest portion of the sensing data received from an end device, 1 < / RTI > data value.

Due to the nature of LoRa communication, only Hex ASCII values ('0 ~ 9', 'A ~ F') can be accepted as data to be transmitted and received. Therefore, the value of '0' or 'F' occupies a large portion of the sensed data. Accordingly, in this embodiment, the '0' value, that is, the null data value or the 'F' data value is removed from the sensed data, and the position of the removed '0' or 'F' ('1 to 9', 'A to F') and second data ('0' or 'F' value position information excluding the null data value or F value) So that the sensed data can be compressed.

For example, when the first data value is applied as the null data value, when the detection data of '44000F00 ..' is compressed, the second data value of '44F' and the null data position information of '00111011 ..' By providing sensing data, it is possible to provide compressed data.

When data is compressed and transmitted according to the compression method according to the present embodiment, information to be transmitted is the same as before compression, and the amount of data is reduced, so that the amount of power for communication is reduced and the life of the battery can be prolonged.

In the data compression method according to the present embodiment, the bit value used most often in normal data processing can be set as the first data value instead of being fixed only to the first data null value or the F value.

On the other hand, a radon barrier coating layer (not shown) is formed on the inner surfaces of the side wall W and the bottom B of the room, respectively, and radon present in the lower part of the floor B of the room can be blocked from entering the room . Such a radon barrier coating layer uses a radon blocking component such as diatomaceous earth, carbonized wood, charcoal, and lacquer.

The ventilating device 40 is installed in the baseboard 2 at the lower end of the wall 1 of the room and is configured to ventilate the room air by forward rotation or reverse rotation of the ventilating device in accordance with the detection result of the radon detection sensor 10 And is configured to drive forward rotation according to a control operation of the microcomputer 40 so as to discharge the radon to the outdoor side when the radon is detected by the radon detection sensor 10 on the indoor side.

2, the ventilator 40 includes an operation switch 440 for driving the ventilator, and a microcomputer 30 connected to the microcomputer 30. The ventilator 40 includes detection result information of the radon detection sensor 10, A rotation detection module 420 connected to the operation switch 440 by wired / wireless connection to detect whether the ventilation device is rotating; a control module 440 connected to the operation switch 440 by wire / And an operation control module 430 for turning the operation switch 440 on and off by a signal.

The ventilating apparatus 40 is installed on the side of the exhaust port on a rack base 2 provided at the lower end of the wall 1 of the room and has a structure in which the lid 41 is opened and closed through the hinge 42. For reference, FIG. 3A shows a case where the lid 41 is closed, and FIG. 3B shows a case where the lid 41 is open.

In addition, the ventilator 40 includes an inlet fan or a discharge fan for sucking air, and a filter device (not shown) including a pre-filter, a deodorizing filter, and a HEPA filter on the front surface or the rear surface of the inlet- May be further included.

The pre-filter is composed of a very fine dead cell, which removes harmful substances in the air, and can remove molds or a part of bacteria by antibacterial treatment. The pre-filter is used by washing with water.

The deodorization filter is a filter capable of removing malodorous and harmful gas and is made of activated carbon and is used in replacement.

The further constituted HEPA filter is a precise filter capable of removing 85 to 99.9% of fine dust of 0.0003 cm and capable of removing yellow sand, mites and mold. The HEPA filter is antimicrobial, and in case of an antiviral HEPA filter, it is possible to remove viruses and allergic harmful substances.

The microcomputer 30 controls the driving of the radon detection sensor 10 and the ventilator 40. The microcomputer 30 performs the forward rotation or the reverse rotation of the ventilator 40 according to the detection result of the radon detection sensor 10, Air can be ventilated. The microcomputer 30 is equipped with a control program for outputting a control signal for rotating the ventilator 40 forward or backward when detecting the radon on the indoor side by the radon detection sensor 10. For this purpose, And the communication module 410 of the ventilation device 40 is connected to the communication module 410. [

The communication unit may be a wired communication module provided in the communication module 410 and the micom 30 of the ventilation unit 40 and connected to the wired communication network or may be a communication module 410 and a microcomputer 30, respectively, and are connected to a wireless communication network.

As described above, the radon detection and removal system according to the embodiment of the present invention detects whether the radon exists on the indoor side through the radon detection sensor 10 installed in the building, as shown in FIGS. 1 to 4 The detection information is output to the microcomputer 30 and the microcomputer 30 controls the ventilator 40 through the communication unit to detect the radon The control program that rotates or rotates the control program is operated. Of course, when the radon concentration is lower than the reference value, the microcomputer 30 controls the ventilator 40 to return to its original position and operate.

The microcomputer 30 may be connected to the external terminal 50 through a wireless communication network and may be controlled by a user input through a status monitoring application of the external terminal 50. [

In addition, the system for removing radon by radon and detecting the radon by a mop base exhaust apparatus may further include an oxygen sensor 20 installed in the room for sensing the amount of oxygen in the room air.

At this time, the microcomputer 30 is connected to the radon detection sensor 10 and the oxygen detection sensor 20 via the LoRA communication network to transmit and receive data, and the radon detection sensor 10 and the oxygen detection sensor 20 detect radon The ventilation device 40 can be controlled to rotate forward or reverse only when the detected amount and the oxygen amount are outside the reference range, respectively.

Accordingly, the radon present on the indoor side from the forward rotation or the reverse rotation of the air ventilation device 40 is purified or discharged to the outdoor side, and is naturally extinguished in the atmosphere, and the indoor radon can be prevented from being inhaled on the indoor side.

The microcomputer 30 is connected to an oxygen generator for extracting oxygen in the air, so that the concentration of oxygen is included in the introduced air at a ratio of 20 to 25%. The microcomputer 30 generates oxygen in the oxygen generator to enter the room if the oxygen is lower than the reference value as a result of the detection by the oxygen sensor 20. At this time, when the oxygen content of the air introduced through the ventilator 40 is more than 30%, it is possible to cause oxygenosis in a person located in the room, so that oxygen of 30% or more is not mixed.

In the present invention, when the radon detection is performed by the radon detection sensor 10, the forward rotation or the reverse rotation operation of the ventilation device 40 may be configured to be performed automatically during the time set by the timer (not shown) have.

That is, when the radon is detected by the radon detection sensor 10, the microcomputer 30 rotates the ventilator 40 for a predetermined period of time according to the time set by the timer, The radon can be quickly discharged to the outdoor side.

In the control panel, the radon content detected by the radon detection sensor 10 and the forward rotation speed of the ventilator 40 are detected by the microcomputer 30 in the control panel (not shown) (Not shown) for displaying a reverse rotation state.

That is, the display unit may be turned on or off according to a control program of the microcomputer 30, so that the operation state of the ventilation device 40 can be easily checked from the outside through the lighting or blinking operation of the display unit.

When the radon is detected by the radon detection sensor 10, the ventilator 40 should be normally rotated in the forward or reverse direction. If the forward rotation of the ventilator 40 is performed, Or when the reverse rotation drive is not normally performed, the radon is introduced into the room side or the radon present in the room side can not be forcibly discharged to the outdoor side. Thus, the user in the building can not only detect the radon through the display portion, So that it can easily confirm whether or not it is discharged.

The data analyzed by the microcomputer 30 is provided to a state monitoring application which can be driven by the external terminal 50. The ventilation device 40 can be controlled based on a user input signal applied to the state monitoring application, And provides an interface function for allowing the user to check the status of the data and the ventilator 40 in the status monitoring application and provides an interface function for allowing the administrator to check the data storage status and the abnormality of the system, The system can identify each user, authorize each identified user, and provide management functions for the administrator to manage the system.

The user or the control center at the remote site can detect the radon detection information detected by the radon detection sensor 10 as well as the driving information of the ventilation device 40 and the detection information of the oxygen detection sensor 20, And can be configured to be able to perform remote control through the monitoring.

4, the external terminal 50 (i.e., the remote user terminal) simultaneously transmits and receives data to and from the microcomputer 30 in the resource blocks allocated to the wireless uplink time slots If the value obtained by adding the transmission rate to the microcomputer 30 and the transmission rate to the base station is greater than the predetermined maximum transmission rate to the base station, transmission to the microcomputer 30 and transmission to the base station are simultaneously performed And controls the transmission power to the microcomputer 30 and the transmission power of the base station to increase the total transmission speed which is a sum of the transmission speed with the microcomputer 30 and the transmission speed with the base station, The transmission with the microcomputer 30 and the transmission with the base station can be performed in different resource blocks if the sum of the transmission rate of the base station and the transmission rate of the base station is smaller than the transmission rate with the maximum base station.

More specifically, as shown in FIG. 4, the following wireless communication method can be performed between the microcomputer 30, the external terminal 50, and the base station.

In step S81, the external terminal 50 can determine whether to perform transmission to and from the communication unit of the microcomputer 30 in the resource block allocated to the radio or base station uplink time slot at the same time. If the value obtained by adding the uplink transmission rate to the base station to the transmission rate to the communication unit is greater than or equal to the predetermined maximum base station uplink transmission rate, in step S82, the external terminal 50 transmits both the communication with the communication unit and the base station . Therefore, the external terminal 50 quickly transmits to the communication unit regardless of the transmission state with the base station.

In step S83, the external terminal 50 appropriately adjusts / distributes the transmission power with the communication unit and the transmission power with the base station, and increases the total transmission speed, which is a value obtained by adding the transmission speed with the communication unit to the uplink transmission speed with the base station .

In this manner, the present invention allows the external terminal 50 to share a resource block between transmission with the communication unit and transmission with the base station. That is, the same radio resource block can be used so that the external terminal 50 can perform uplink transmission with the base station and transmission with the communication unit at the same transmission time interval. Since the base station uplink communication is allocated more resources than the communication with the communication unit, the external terminal 50 in the base station uplink transmission performs the transmission with the communication unit differently at the same time, The data rate between the external terminal 50 and the communication unit described above is improved, and the stable operation of the ventilation device 40 becomes possible.

Of course, if the base station uplink transmission and the communication section simultaneous transmission are performed as described above, the power allocation between the uplink transmission to the base station and the transmission to the communication can be optimized based on the overall data rate or a function of these rates.

If the sum of the transmission rate with the communication unit and the transmission rate with the base station is smaller than the transmission rate with the maximum base station, the transmission to the communication unit and the transmission to the base station are performed in different resource blocks in step S84.

For example, the first resource block may be allocated for the inter-device communication link between the external terminal 50 and the communication unit. The second resource block may be allocated for the uplink base station link between the base station and the external terminal 50. [ The third resource block in the uplink base station spectrum may be assigned to simultaneous inter-device communication and base station communication. Here, the data rate can be considered to determine whether to perform base station uplink dedicated transmission or to perform simultaneous transmission with the base station uplink and communication section. More particularly, the determination will optimize the function of the data rate if the entire data rate criterion can be employed. Also, more particularly, if the sum of the rates of base station uplink and communication unit transmissions, or the function of the base station uplink and communication unit speed is better than the achievable data rate of the base station uplink dedicated transmission, or a function of the achievable data rate, Simultaneous transmission of the base station uplink and the communication part is most preferable.

In this manner, the inter-device transmission from the external terminal 50 and simultaneous transmission of the base station uplink are allowed, so that the calculation is simplified and the system overhead can be avoided compared with the conventional method. Further, the interference from the base station uplink signal to the inter-device communication can be eliminated, thereby improving the period communication performance. Since inter-device communication generally consumes less power, inter-device communication signals do not cause interference to the base station uplink signal. In addition, the base station uplink and inter-device simultaneous transmission mode selection and power allocation optimizes and improves the performance of the individual external terminals 50, which improves the performance of the entire network with an appropriate scheduling algorithm.

Meanwhile, the radon detecting sensor 10 or the oxygen detecting sensor 20 may be fixed to a mounting hole (not shown) formed on a wall surface of a room. In order to improve a mounting force, have. Wherein 70 mol% of terephthalic acid and 30 mol% of phthalic anhydride are dicarboxylic acid components and 75 mol% of the diol component is ethylene glycol and 25 mol% of the diol component based on the mole of the dicarboxylic acid unit constituting the copolymer polyester Diethylene glycol, and the mixture is condensed with a trimellitic acid component in an amount of 40 to 400 ppm based on the weight of the polyester. The dicarboxylic acid component constituting the copolymer polyester of the present invention is a mixture of terephthalic acid and phthalic anhydride and an ester-forming derivative thereof, wherein 70 mol% of the dicarboxylic acid component is a terephthalic acid component and 30 mol% is a phthalic anhydride component . When the content of phthalic anhydride is less than 30 mol% in the present invention, crystals are formed in the produced copolymerized polyester, and when the content of phthalic anhydride is less than 30 mol% If the content of phthalic anhydride exceeds 30 mol%, the effect of lowering the softening temperature becomes insignificant, resulting in a decrease in the physical properties of the copolymer polyester. In the present invention, the composition ratio of the diol component is such that 75 mol%, based on the mole of the dicarboxylic acid unit, is an ethylene glycol component and 25 mol% is a diethylene glycol component. The reason why the composition ratio of ethylene glycol and diethylene glycol is limited within this range is to satisfy the softening temperature, adhesion performance and processability of the resulting polymer. If the content of diethylene glycol is less than 25 mol%, the desired performance can not be exhibited. If the content of the diethylene glycol exceeds 25 mol%, the softening start temperature of the copolyester is too low to be lower than 60 캜. The reason why the addition amount of the trimellitic acid multifunctional component is limited to the above range is that the polymerization temperature of the mounting filler according to the present invention is lowered and the reaction time is shortened to improve color defects, In order to improve workability. If the addition amount of the trimellitic acid multifunctional component is less than 40 ppm, the desired crosslinking agent is not sufficient. If the addition amount of the multifunctional component exceeds 400 ppm, on the other hand, when the addition amount of the trimellitic acid multifunctional component is less than 40 ppm, It causes problems.

In addition, the anti-fouling coating layer made of the anti-fouling coating composition may be applied to the outer surface of the microcomputer 30 so as to effectively prevent and remove the adhesion of the contaminants.

The composition for anti-fouling coating contains alkaline polyglucoside and aminoalkyllaurobetain in a molar ratio of 1: 0.01 to 1: 2, and the total content of the alkylate polyglucoside and aminoalkyllaurobetain is 1 to 10 Weight%.

The molar ratio of the alkylate polyglucoside and the aminoalkyl sucrose is preferably in the range of 1: 0.01 to 1: 2. If the molar ratio is out of the above range, the coating property of the substrate may be lowered or the adsorption of water on the surface may increase, .

The alkaline polyglycoside and the aminoalkylsulbate are preferably used in an amount of 1 to 10% by weight based on the total weight of the composition. When the content is less than 1% by weight, the applicability of the base material is deteriorated. When the content is more than 10% by weight, The crystal precipitation is likely to occur.

On the other hand, as a method of applying the present anti-fouling coating composition onto a substrate, it is preferable to coat it by a spray method. The thickness of the final coated film on the substrate is preferably 500 to 2000 angstroms, more preferably 1000 to 2000 angstroms. If the thickness of the coating film is less than 500 angstroms, there is a problem of deterioration in the case of a high-temperature heat treatment. On the other hand, when the thickness of the coating film is more than 2000 angstroms,

The anti-contamination coating composition may also be prepared by adding 0.1 mol of an alkylate polyglucoside and 0.05 mol of aminoalkylsorbate to 1000 mL of distilled water and stirring.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. However, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention. .

10: radon detection sensor 20: oxygen detection sensor
30: Microcomputer 40: Ventilation device
50: external terminal 410: communication module
420: rotation detection module 430: operation control module
440: Operation switch

Claims (4)

A plurality of radon detecting sensors installed in the room for detecting radon in the room air;
A ventilating device installed in a rack base in the room for discharging the indoor air toward the outdoor side according to the detection result of the radon detecting sensor; And
And a microcomputer for controlling driving of the radon detecting sensor and the ventilator,
The microcomputer ventilates the indoor air by forwardly or reversely rotating the ventilator in accordance with the detection result of the radon detection sensor,
Wherein the microcomputer is connected to an external terminal through a wireless communication network and is controlled by a user input through a status monitoring application of the external terminal,
Wherein the external terminal determines whether to perform transmission to the microcomputer and transmission to the base station simultaneously in a resource block allocated to a wireless uplink time slot,
When a value obtained by adding the transmission rate to the microcomputer and the transmission rate to the base station is greater than a predetermined transmission rate to the base station, the transmission to the microcomputer and the transmission to the base station are simultaneously performed,
The transmission power to the microcomputer and the transmission power to the base station are adjusted so that the total transmission speed, which is a value obtained by adding the transmission speed to the microcomputer and the transmission speed to the base station,
The transmission with the microcomputer and the transmission with the base station are performed in different resource blocks if the sum of the transmission rate with the microcomputer and the transmission rate with the base station is smaller than the transmission rate with the maximum base station And a system for removing the detected radon by means of a base pan exhausting apparatus.
The method according to claim 1,
The ventilation device
And a filter device including a pre-filter, a deodorization filter, and a hepafi filter on the front or rear surface of the inflow fan or the discharge fan, wherein the inflow fan or the discharge fan for sucking air is further provided. Removal system through radon exhaust system.
The method according to claim 1,
An oxygen detecting sensor installed in the room for sensing the amount of oxygen in the room air,
The microcomputer transmits and receives data through the LoRA communication network with the radon detection sensor and the oxygen detection sensor, and only when the radon detection amount and the oxygen amount are outside the respective reference ranges as a result of detection by the radon detection sensor and the oxygen detection sensor, Wherein the radon detector detects the radon and rotates the rotor in the forward or reverse direction.
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