Chamber for ventilation apparatus with single sensor of measuring air quality

Abstract

The chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention is characterized by efficiently improving indoor air quality by analyzing the quality of multi-channel air based on a single sensor for measuring air quality to individually manage air quality within multiple spaces of multi-unit housing or commercial facilities, and by guiding air sequentially flowing in from multiple channels to the single sensor through an electronic valve based on a time division multiplexing method to sequentially measure the air quality of multiple independent spaces using a single sensor, thereby enabling quantitative separation and measurement of the indoor air quality corresponding to each channel.

Description

Technology Field

[0001] The present invention relates to a chamber for a ventilation device equipped with a single sensor for measuring air quality, and more specifically, to a chamber for a ventilation device equipped with a single sensor for measuring air quality that can efficiently improve indoor air quality by analyzing the quality of multi-channel air based on a single sensor for measuring air quality to individually manage air quality within multiple spaces of multi-unit housing or commercial facilities. Background Technology

[0003] Recently, interest in indoor air quality has increased due to not only fine dust but also various organic compounds, including formaldehyde that causes sick building syndrome, as well as harmful substances such as radon, carbon dioxide, and carbon monoxide.

[0004] As a result, we live in an era where air purifiers and indoor ventilation systems are commonly found not only in multi-use facilities such as buildings, subways, and underground shopping malls, but also in ordinary households.

[0005] In relation to registered patent No. 10-2045259, if you look at recently constructed apartments, most of them have ventilation openings in the ceilings of each room and an electric device for exhausting indoor air and inhaling outdoor air is installed in the ceiling of the balcony (utility room).

[0006] In particular, the installation of ventilation facilities in multi-unit housing was made mandatory when the 'mandatory application of ventilation equipment in multi-unit housing' was enacted into law in 2006.

[0007] Of course, it is not mandatory, but recently, its application to detached houses is becoming more common.

[0008] In the past, people usually ventilated their homes by directly opening windows or doors, but this method was difficult to open or close at the right time when no one was home, and it had problems such as reduced cooling and heating efficiency and the influx of airborne pollutants into the indoors.

[0009] Therefore, we live in an era where home ventilation systems are increasingly recognized as essential devices.

[0010] In this ventilation system, ducts and air intakes or exhausts are arranged in the ceilings of each room and living room, and these ducts are connected to a ventilation unit (blowing + filtration + heat exchange) installed on a balcony at the rear of the building.

[0011] In other words, the principle is simple: it circulates indoor air by continuously performing intake and exhaust using a duct that draws in indoor air and expels it outside, and a duct that draws in outside air and supplies it indoors.

[0012] However, typically, when supplying outside air, air purification is limited to filtering at the intake section, so there are no facilities or means within the fresh air supply duct itself to contribute to improving air quality.

[0013] Therefore, aside from simple ventilation, the air purification and cleaning functions are lacking, and it is time to supplement this.

[0014] In addition, conventional central air purification systems are structured to supply the same airflow and temperature to multiple indoor spaces through a single air purification device.

[0015] This method applies the same control conditions structurally despite varying temperature conditions in different indoor spaces, resulting in unnecessary energy waste and limitations in creating user-customized environments.

[0016] Accordingly, ventilation devices are used to exhaust contaminated indoor air from buildings such as offices, department stores, and large supermarkets to the outside and to supply fresh outside air into the indoor space.

[0017] In other words, a conventional ventilation system is a device that first exchanges heat between the outdoor air and the indoor air being discharged to the outside so that sudden cold and heat do not enter from the outside when ventilating indoor air. This maintains the indoor air in a comfortable state by exhausting volatile organic compounds generated indoors through exhaust and drawing in filtered fresh outdoor air into the indoors.

[0018] Accordingly, when exhausting air from the conditioned indoor space to the outside, the exhaust fan installed inside the ventilation device operates, and the contaminated air passes through the heat exchanger element using the static pressure at this time, and is discharged from the indoor space to the outside, and is operated simply on / off or at regular time intervals by user operation.

[0019] Since this operates regardless of indoor air quality, it runs excessively, causing an excessive influx of outside air into the room and resulting in significant energy loss.

[0020] To address these issues, air pollution sensors capable of measuring indoor air quality are installed at specific locations to operate ventilation systems based on the measured pollution levels; however, reliable air pollution sensors are expensive, resulting in excessive installation costs when installed in every room. Furthermore, as indoor and outdoor air quality continues to deteriorate and the demand for oxygen supply units increases, providing separate oxygen supply units incurs significant costs and occupies a large amount of space, while also presenting the inconvenience of having to install separate oxygen supply lines in each room.

[0021] In addition, measuring air quality in each room in an existing multi-room environment requires installing a sensor individually in each room, which results in high initial installation costs and difficulties in maintenance and calibration.

[0022] Therefore, in existing systems, precise control of the damper that regulates airflow is difficult, and thus there is a problem in that it is difficult to integrate with smart control or automatic control systems overall.

[0023] To solve these technical problems, there is a need for a system capable of measuring multi-channel air quality using a single sensor based on indoor temperature and environmental conditions. Prior art literature

[0025] Republic of Korea Patent Registration No. 10-1308886 Republic of Korea Patent Registration No. 10-1153398 Republic of Korea Patent Registration No. 10-1558141 Republic of Korea Utility Model Publication No. 20-2012-0000683 Republic of Korea Utility Model Registration No. 20-0241660 Republic of Korea Patent Registration No. 10-2045259 The problem to be solved

[0026] The present invention is intended to solve the problems of the past and has the following objectives.

[0027] The purpose of the present invention is to provide a chamber for a ventilation device equipped with a single sensor for measuring air quality, which analyzes the quality of multi-channel air based on a single sensor for measuring air quality to individually manage air quality within multiple spaces of multi-unit housing or commercial facilities, thereby efficiently improving indoor air quality.

[0028] In addition, another objective of the present invention is to provide a chamber for a ventilation device equipped with a single sensor that allows for the sequential measurement of air quality in multiple independent spaces using a single sensor, by guiding air sequentially introduced from multiple channels to a single sensor through an electronic valve based on time division multiplexing, thereby enabling quantitative separation and measurement of the indoor air quality corresponding to each channel.

[0029] In addition, another objective of the present invention is to provide a chamber for a ventilation device equipped with a single sensor, which enables multi-channel measurement with a single sensor, thereby drastically reducing overall system construction costs, maximizing operational efficiency by unifying maintenance and sensor calibration tasks, quantitatively separating and storing data by space for use in smart control and energy-saving operation, and offering excellent system scalability that allows for flexible application depending on the number of channels, as well as facilitating easy integration with various external systems such as BEMS, smart homes, and ventilation systems.

[0030] Meanwhile, the technical problems to be solved by the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which the present invention belongs from the description below. means of solving the problem

[0032] A chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention for achieving the above-mentioned purpose is a chamber directly connected to a ventilation device that drives to supply outdoor air to an indoor space and exhaust indoor air to the outside, comprising: a main body case having a plurality of detachable supply or exhaust dampers on one side; a fan unit located inside the main body case and rotating to draw outdoor air into the indoor space and discharge indoor air to the outside; and an opening / closing member for opening and closing the supply or exhaust dampers or adjusting the degree of opening to control the supply and exhaust volume of air, wherein an air channel is provided at the lower inner side of the main body case to which air for measuring air quality is introduced, and a single sensor consisting of a single sensor for measuring the air quality of the incoming air is provided inside the air channel, and an electronic shut-off valve capable of introducing or blocking air is provided at the upper part of the air channel, and between the electronic shut-off valve and the supply or exhaust damper, respectively, so as to easily introduce an air sample into the air channel It is accomplished by installing a tube.

[0033] The above ventilation device is further provided with a controller that is linked to the above ventilation device, controls a single sensor for measuring air quality, controls an electronic shut-off valve that opens and closes the inflow of air samples through a tube, and controls the air for each room to be regulated through the opening and closing member of a supply or exhaust damper based on the air quality measurement value measured by the single sensor.

[0034] Accordingly, the controller controls the sequential opening of each electronic shut-off valve at regular intervals to measure the air quality of the air introduced into the space of multiple air channels using a time division multiplexing method.

[0035] In addition, the controller recognizes a room as contaminated if, while a reference value for the air quality of each room is set, the measurement value obtained through a single sensor exceeds the set reference value, and controls the opening and closing member of the supply or exhaust damper to open only for that specific room.

[0036] In addition, the controller is linked with a cloud server or an external network to enable remote monitoring, and is equipped with a communication module or an interface module to enable communication linkage with a BEMS (Building Energy Management System), IoT, or smart home platform.

[0037] In addition, the controller analyzes measurements of the space in each room to generate air quality statistical data for each room, and is configured to optimize automatic learning and ventilation strategies through AI or algorithms based on the generated data.

[0038] In addition, the controller includes an algorithm for variable measurement control that analyzes pollution levels and usage patterns by space to variably adjust the measurement cycle for each air channel, and the controller includes an environment-adaptive algorithm that receives external fine dust concentration, weather information, and ventilation condition data, and determines whether to automatically ventilate by integrating and analyzing the received data with indoor air quality.

[0039] The above tube is made of a silicone hose with an inner diameter of 3 to 10 mm so that an air sample can be easily introduced, and the above single sensor is configured to measure air quality including fine dust (PM), carbon dioxide (CO₂), total volatile organic compounds (TVOC), and temperature and humidity, respectively, for the air introduced into the air channel.

[0040] In addition, the measurement data obtained through the single sensor is transmitted in real time to a mobile device via a wireless communication network, and is configured to provide the user with warnings, notifications, or guidance on switching to ventilation mode.

[0041] In addition, the single sensor is configured in the form of a composite sensor module, and the controller calculates the composite hazard index of indoor air using the measured values ​​obtained through the module-type composite sensor, enabling operation through redundancy to switch between automatic and forced operation of the ventilation device, allowing the user to detect it in advance.

[0042] Meanwhile, the measurement system according to the present invention is configured to sequentially measure the air quality of air introduced from multiple spaces using a time division method by utilizing a single sensor provided inside a chamber connected to a ventilation device, wherein the single sensor is located in an independent air channel and an electronically controlled electronic shut-off valve is connected to the air channel, and the controller opens the electronic shut-off valve according to a predetermined sequence to introduce air into the corresponding air channel, measures the air quality of the introduced air through the single sensor, collects data regarding the inflow stabilization time and sensor response time, and stores the collected measurement values ​​including air quality information corresponding to the air channel, timestamps, and channel identification information, and the data is transmitted to a management server through a communication module to enable smart ventilation control.

[0043] The opening and closing member of the above-mentioned supply or exhaust damper is electrically operated and capable of controlling the opening angle by a control signal from a controller, and the opening rate is adjusted according to the pollution level of each room. This allows for the precise control of the opening angle of the opening and closing member according to the indoor air quality of each room, thereby appropriately controlling the amount of supply or exhaust air. Effects of the invention

[0045] The present invention has the effect of efficiently improving indoor air quality by analyzing the quality of multi-channel air based on a single sensor that measures air quality, thereby enabling individual management of air quality within multiple spaces of multi-unit housing or commercial facilities.

[0046] In addition, the present invention has the effect of enabling the quantitative separation and measurement of indoor air quality corresponding to each channel by guiding air sequentially flowing in from multiple channels to a single sensor through an electronic valve based on time division multiplexing, so as to sequentially measure the air quality of multiple independent spaces using a single sensor.

[0047] Furthermore, the present invention enables the acquisition of room-specific air quality data for multiple spaces using a single air quality sensor through valve switching and time control methods, thereby reducing maintenance costs, ensuring scalability, and enabling accurate room-specific measurements. By resolving various technical limitations such as increased initial investment costs, maintenance burdens, and calibration deviations between sensors associated with installing individual sensors in each space, the invention minimizes the cost and installation of a system for measuring air quality in multi-room environments, allowing for precise measurement of air quality in multiple spaces based on a single sensor while simultaneously securing highly reliable data.

[0048] In addition, since the present invention enables multi-channel measurement with a single sensor, the overall system construction cost can be drastically reduced, and operational efficiency is maximized by unifying maintenance and sensor calibration tasks. Furthermore, data by space can be quantitatively separated and stored for use in smart control and energy-saving operation, and the system has excellent scalability, allowing for flexible application depending on the number of channels. It also has the effect of facilitating easy integration with various external systems such as BEMS, smart homes, and ventilation systems.

[0049] Meanwhile, the effects obtainable from the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present invention belongs from the description below. Brief explanation of the drawing

[0051] FIG. 1 is a conceptual diagram showing the state in which a ventilation device is operated in each indoor room to explain a chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention. FIG. 2 is an example diagram of the exterior configuration shown from one side of a chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention. FIG. 3 is an example diagram of the external configuration shown from the other side for a chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention. FIG. 4 is an exemplary configuration diagram for explaining the implementation state of a chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention. FIG. 5 is an example cross-sectional configuration diagram showing an embodiment of a chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention. FIG. 6 is an example cross-sectional configuration diagram for explaining the implementation state of a supply or exhaust damper provided in a chamber for a ventilation device according to the present invention. FIG. 7 is an example diagram showing the degree of opening for the opening / closing member of the supply or exhaust damper according to the present invention. Specific details for implementing the invention

[0052] Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

[0053] In the following description of the present invention, specific descriptions of related known functions or configurations will be omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Furthermore, the terms described below are established considering their functions in the present invention; these terms may vary depending on the intention or practice of the manufacturer producing the product, and their definitions should be based on the content throughout this specification.

[0054] First, the attached drawing Fig. 1 is a conceptual diagram showing the state in which a ventilation device is operated in each indoor room to explain a chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention.

[0055] That is, a ventilation device (10) that supplies outdoor air to an indoor space and exhausts indoor air to the outside, a chamber (100) that is directly connected to the ventilation device (10) and is equipped with a plurality of connecting pipes that connect an exhaust duct (20) and a supply duct (30) and controls the supply amount supplied to the indoor space and the exhaust amount discharged to the outside, an exhaust duct (20) and a supply duct (30) that are connected to the chamber (100) to exhaust and supply air, and a diffuser (40) that is in communication with the exhaust duct (20) and the supply duct (30), is installed on a wall or ceiling of the indoor space, and discharges incoming air into the indoor space or sucks in indoor air, thereby enabling the maintenance of a comfortable indoor environment.

[0056] Accordingly, as shown in the attached drawings Figs. 2 to 6, the chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention is configured such that the chamber (100) is directly connected to a ventilation device (10) that drives to supply outdoor air to an indoor space and exhaust indoor air to the outside.

[0057] That is, the chamber (100) is equipped with a plurality of supply air dampers or exhaust air dampers (150) that can be attached to one side of the main body case (110), and a fan unit (160) is located inside the main body case (110) so as to rotate to draw in outside air into the room and discharge indoor air to the outside. The supply air dampers or exhaust air dampers (150) are equipped with an opening / closing member (151) so as to be able to open and close the supply and exhaust of air, and at the same time, the amount of air supply and exhaust can be controlled by adjusting the degree of opening.

[0058] Additionally, an air channel (120) is provided at the inner bottom of the main body case (110), into which air for measuring air quality is introduced, and a single sensor (121) is provided inside the air channel (120) to measure the air quality of the air introduced into the air channel (120).

[0059] Additionally, an electronic shut-off valve (130) is provided at the upper end of the air channel (120), which can introduce or block air into the air channel (120), and a tube (140) is installed between the electronic shut-off valve (130) and the supply air damper or exhaust air damper (150) respectively so that air samples can be easily introduced into the air channel (120).

[0060] Here, the tube (140) is preferably made of a silicone hose with an inner diameter of 3 to 10 mm so that an air sample can be easily introduced.

[0061] In addition, a controller (not shown) for controlling the operation of the chamber (100) implemented according to the present invention is provided, which is linked to the ventilation device (10) and controls a single sensor (121) for measuring air quality and controls an electronic shut-off valve (130) that opens and closes the inflow of air samples through a tube (140), and controls the air for each room to be controlled through the opening and closing member (151) of the supply air damper or exhaust damper (150) based on the air quality measurement value measured through the single sensor (121), and controls the air quality of the air flowing into the space of the multiple air channels (120) by sequentially opening each electronic shut-off valve (130) at regular intervals to measure the air quality using a time division multiplexing method.

[0062] Accordingly, the controller recognizes a room as a contaminated space when the measurement value measured by a single sensor (121) exceeds the set standard value among the rooms while the standard value for the air quality of each room is set, and controls the opening / closing member (151) of the supply air damper or exhaust damper (150) to open only for the space of the room in question. In addition to controlling for remote monitoring by linking with a cloud server or an external network, the controller is equipped with a communication module or an interface module to enable communication linkage with a BEMS (Building Energy Management System), IoT, or smart home platform.

[0063] In addition, the controller analyzes measurement values ​​for each room to generate air quality statistical data for each room, and based on the generated data, can optimize automatic learning and ventilation strategies through AI or algorithms. Furthermore, an algorithm for variable measurement control is executed to variably adjust the measurement cycle for each air channel by analyzing pollution levels and usage patterns by space, and an environment-adaptive algorithm is executed to receive external fine dust concentration, weather information, and ventilation condition data, and to determine whether to automatically ventilate by integrating and analyzing the received data with indoor air quality.

[0064] That is, for example, six tubes (140) and electronic shut-off valves (130) are provided, each connected to six spaces (rooms 1 to 6), and each tube (140) is configured with an inner diameter of 3 to 10 mm and made of silicone hose. A single sensor (121) is driven by a control signal from the controller to measure fine dust (PM), carbon dioxide (CO₂), total volatile organic compounds (TVOC), and temperature and humidity contained in the air quality, respectively. The electronic shut-off valves (130) are sequentially controlled by a control signal from the controller, and data is stably collected with a time delay of 8 seconds for the inflow stabilization time and 5 seconds for the sensor response time. The collected measurement data is transmitted to a management server via MQTT in JSON format, and the management server can automatically adjust the airflow volume or ventilation time based on the measurement values ​​for each room.

[0065] In this way, the measurement data measured through the single sensor (121) is transmitted in real time to a mobile device via a wireless communication network, and can provide the user with a warning, notification, or guidance on switching the ventilation mode. The single sensor (121) is configured in the form of a composite sensor module, and the controller calculates the composite hazard index of the indoor air using the measurement value measured through the module-type composite sensor, thereby enabling redundancy so that the user can recognize it in advance or switch to operating the ventilation device (10) automatically or forcibly.

[0066] Meanwhile, the measurement system using a chamber for a ventilation device equipped with a single sensor for measuring air quality according to the present invention is configured to sequentially measure the air quality of air introduced from multiple spaces using a time division method by utilizing a single sensor (121) provided inside a chamber (100) connected to a ventilation device (10). The single sensor (121) is located in an independent air channel (120), and an electronically controlled electronic shut-off valve (130) is connected to the air channel (120). The controller opens the electronic shut-off valve (130) according to a predetermined sequence to introduce air into the corresponding air channel (120), measures the air quality of the introduced air through the single sensor (121), collects data regarding the inflow stabilization time and sensor response time, and stores the collected measurement values ​​including air quality information corresponding to the air channel, timestamps, and channel identification information. The data is transmitted to a management server via a communication module and is linked to enable smart ventilation control.

[0067] Figure 7 of the attached drawings is an example drawing showing the degree of opening of the opening angle of the opening / closing member according to the present invention. This controls the degree of opening of the opening / closing member (151) according to the indoor air quality so that the amount of air supplied or exhausted is appropriately supplied or exhausted. For example, the degree of opening of the opening / closing member (151) can be set to 0° to 90°, that is, it can be set to 0° to 30°, 30° to 60°, and 60° to 90°.

[0068] As described above, the present invention relates to an integrated ventilation management technology that utilizes a single sensor to collect air quality data generated in multiple spaces in stages and controls ventilation for each room based on this data. Conventional technologies are structured such that individual air quality sensors are installed in each room, which entails increased installation costs and difficulties in maintenance, as well as problems such as reduced reliability due to sensor calibration deviations. However, the present invention adopts a centralized single-sensor-based structure, thereby drastically reducing installation and maintenance costs while fundamentally eliminating data inconsistencies caused by deviations between sensors. Furthermore, the precision sample collection structure utilizing electronic shut-off valves and tubes minimizes interference between spaces and enables multi-channel measurement using a time-division method by sequentially introducing air from different rooms.

[0069] This can be expanded into a structure that minimizes energy consumption through the setting of ventilation priorities per room and selective opening control in the control algorithm, and since real-time optimization is possible when linked with an AI-based automatic learning module, it can be applied to various multi-room environments such as apartment buildings, offices, schools, hospitals, and hotels, and especially when linked with a Building Energy Management System (BEMS), it can achieve even higher efficiency and function as a core infrastructure for a smart ventilation system capable of not only measuring air quality but also real-time analysis, prediction, and control based on collected data.

[0070] In light of these technical features, the present invention is clearly differentiated from conventional technology and possesses both overall technical advancement and industrial applicability.

[0071] Specific embodiments of the present invention have been described above.

[0072] However, those skilled in the art will understand that the spirit and scope of the present invention are not specifically limited to these particular embodiments, and that various modifications and variations are possible within the scope of not altering the essence of the invention.

[0073] Accordingly, the aforementioned embodiments are provided to fully inform those skilled in the art of the scope of the invention and should be understood as illustrative in all respects and not restrictive, and the invention is defined only by the scope of the claims. Explanation of the symbols

[0075] 10: Ventilation device 20 : Exhaust duct 30 : Supply air duct 40 : Diffuser 100 : Chamber 110 : Main body case 120 : Air channel 121 : Single sensor 130 : Electronic shut-off valve 140 : Tube 150: Supply damper or exhaust damper 151 : Opening / closing member 160 : Fan unit

Claims

Claim 1 A chamber directly connected to a ventilation device that supplies outdoor air to an indoor space and exhausts indoor air to the outside, comprising: a main body case equipped with a plurality of detachable supply or exhaust dampers on one side; a fan unit located inside the main body case and rotating to draw outdoor air into the indoor space and discharge indoor air to the outside; and an opening / closing member that controls the supply and exhaust volume of air by opening and closing the supply or exhaust dampers or adjusting the degree of opening; wherein an air channel is provided at the lower inner side of the main body case to which air for measuring air quality is introduced, and a single sensor consisting of a single sensor for measuring the air quality of the incoming air is provided inside the air channel, and an electronic shut-off valve capable of introducing or blocking air is provided at the upper part of the air channel, and a tube is installed between the electronic shut-off valve and the supply or exhaust damper to facilitate the introduction of an air sample into the air channel, and the single sensor for measuring air quality is linked with the ventilation device. A chamber for a ventilation device equipped with a single sensor for measuring air quality, further comprising a controller that controls an electronic shut-off valve for opening and closing the inflow of an air sample through a tube, and controls the air for each room to be regulated through the opening and closing member of a supply or exhaust damper based on an air quality measurement value measured by the single sensor, wherein the controller recognizes a room space as contaminated if, while a reference value for the air quality of each room is set, the measurement value measured by the single sensor is greater than the set reference value among the rooms, and controls the opening and closing member of the supply or exhaust damper to be opened only for the corresponding room space. Claim 2 delete Claim 3 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 1, the controller sequentially opens each electronic shut-off valve at regular intervals to measure the air quality of air introduced into the space of multiple air channels using a time division multiplexing method. Claim 4 delete Claim 5 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 1, the controller controls to enable remote monitoring by linking with a cloud server or an external network, and is equipped with a communication module or an interface module to enable communication linkage with a BEMS (Building Energy Management System), IoT, or smart home platform. Claim 6 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 1, the controller analyzes measurement values ​​for the space of each room to generate air quality statistical data for each room, and is configured to optimize automatic learning and ventilation strategies through AI or algorithms based on the generated data. Claim 7 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 6, the controller includes an algorithm for variable measurement control to variably adjust the measurement cycle per air channel by analyzing the pollution level and usage pattern per space. Claim 8 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 6, the controller receives external fine dust concentration, weather information, and ventilation condition data, and includes an environment-adaptive algorithm to determine whether to automatically ventilate by integrating and analyzing the received data and indoor air quality. Claim 9 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 1, the tube has an inner diameter of 3 to 10 mm to allow easy inflow of an air sample and is made of a silicone hose. Claim 10 A chamber for a ventilation device equipped with a single sensor for measuring air quality, wherein, in claim 1, the single sensor is configured to measure air quality including fine dust (PM), carbon dioxide (CO₂), total volatile organic compounds (TVOC), and temperature and humidity, respectively, for air introduced into an air channel. Claim 11 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 1, the measurement data measured through the single sensor is transmitted in real time to a mobile device via a wireless communication network and is configured to provide a warning, notification, or guidance on switching the ventilation mode to the user. Claim 12 A chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that, in claim 1, the single sensor is configured in the form of a composite sensor module, and the controller calculates a composite hazard index of indoor air using the measured value obtained through the module-type composite sensor, and enables redundancy to switch between automatic and forced operation of the ventilation device, thereby allowing the user to recognize the value in advance. Claim 13 A measurement system using a chamber for a ventilation device equipped with a single sensor for measuring air quality, characterized in that the air quality of air introduced from multiple spaces is sequentially measured using a time division method by utilizing a single sensor provided inside a chamber connected to a ventilation device, said single sensor is located in an independent air channel, and an electronically controlled electronic shut-off valve is connected to said air channel, and the controller opens the electronic shut-off valve according to a predetermined sequence to introduce air into the corresponding air channel, measures the air quality of the introduced air through the single sensor, collects data regarding the inflow stabilization time and sensor response time, and stores the collected measurement values ​​including air quality information corresponding to the air channel, timestamps, and channel identification information, and said data is transmitted to a management server through a communication module to enable smart ventilation control.

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