KR20200085482A - Apparatus for air quality information providing according to changes in indoor environment - Google Patents

Abstract

The present invention relates to a device for providing air quality information according to a major change in an internal environment and, more specifically, to provide a device for providing air quality information according to a major change in an internal environment to calculate human hazard evaluation index data for each major indoor air environment based on indoor air quality data generated from an indoor air quality measurement sensor module, which is divided in internal space, capable of measuring different types of air quality information and indoor air quality data according to an indoor measurement space situation generated from an internal situation judgement processing module capable of grasping a change in indoor measurement space and providing an indoor comfort index and warning signal to a user.

Description

Apparatus for air quality information providing according to changes in indoor environment}

The present invention relates to a device for providing air quality information according to a major indoor environment change.

Recently, as problems such as heat waves, cold waves, and fine dust due to weather and environmental changes have emerged, the government has designated maintenance standards for each environmental hazard, and has provided outdoor air quality measurement information and air quality levels to the public.

The outdoor air quality measurement information may include various air quality environmental data measured from temperature and humidity sensors for measuring the temperature and humidity of the outdoor space, carbon dioxide sensors for measuring various pollutants present in the outdoor space, and dust sensors. .

As a result of the outdoor air quality measurement information, the public can grasp the level and risk level of fine dust concentration, temperature and humidity in the outdoor environment through a medium such as a smartphone, television, or the Internet, but not in an outdoor home. In indoor environments such as offices and schools, accurate air quality measurement information was inevitable.

For this reason, an air environment measurement system is installed indoors to measure data about the indoor environment. However, the air environment measurement system developed in the related art only displays numerical values for current air quality measurement information, and information of outdoor air quality measurement There was a problem in that the system that displays the current level of air quality or warns the user of the danger by reflecting it cannot be provided to the user.

In addition, the indoor atmospheric environment has a problem in that the concentration of the atmospheric environment varies greatly depending on the situation of the measurement space, and the sensitivity to this is not analyzed even though the human factors are different for each environmental element.

In this background, the object of the present invention is an indoor air quality data generated from an indoor air quality measurement sensor module capable of measuring different types of air quality information partitioned indoors, and an indoor situation determination processing module capable of grasping changes in the indoor measurement space Based on the indoor air quality data according to the indoor measurement space conditions generated from the system, it calculates the human body hazard assessment index data for each major indoor air environment, and provides the indoor air quality information according to the major indoor environment changes that provide the user with an indoor comfort index and warning signals. The purpose is to provide.

In order to achieve the above object, in one aspect, the present invention is installed at a predetermined point in the room to measure the air quality around a predetermined point at regular intervals to generate indoor air quality data, and detects the opening of personnel and windows through sensors installed in the room Determines the indoor situation data, calculates the air quality index and the human hazard index according to the indoor situation based on the generated indoor air quality data and the indoor situation data, transmits the harmful code of the calculated human hazard index data to the user terminal, , Provides a device for providing air quality information according to major indoor environmental changes that generate alerts and alarms according to the human hazard index.

As described above, according to the present invention, according to the indoor measurement space, it is possible to grasp information of air quality, such as temperature, humidity, fine dust, and carbon dioxide, and calculate the hazard evaluation index based on indoor air quality measurement information. It is possible to provide reliable information to the user.

1 is a diagram briefly showing the configuration of an air quality information providing system according to a major indoor environment change according to an embodiment of the present invention;
Figure 2 is a block diagram schematically showing the configuration of the environmental information measurement control apparatus in the air quality information providing system according to the main environmental changes in the interior of the present invention,
3 is a block diagram schematically showing the configuration of a main server in a system for providing air quality information according to a major indoor environment change according to an embodiment of the present invention;
Figure 4 is a flow chart showing a process for providing an air quality information providing system according to the main environmental changes in the room according to an embodiment of the present invention,
FIG. 5 is a diagram exemplarily showing a screen of a user terminal using an air quality information providing system according to a major indoor environment change according to an embodiment of the present invention.

The present invention can be applied to various changes and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

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. In this application, terms such as “include” or “have” are intended to indicate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and that one or more other features are present. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as having meanings that are inconsistent with meanings in the context of the related art, and should be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not work.

In addition, it is to be understood that all detailed descriptions that list the principles, aspects and embodiments of the invention as well as specific embodiments are intended to include structural and functional equivalents of these matters. It should also be understood that these equivalents include all currently invented equivalents as well as equivalents to be developed in the future, ie, all devices invented to perform the same function regardless of structure.

Thus, for example, it should be understood that the block diagrams herein represent conceptual views of exemplary circuits embodying the principles of the invention. Similarly, all flow diagrams, state transition diagrams, pseudo-codes, etc., can represent a variety of processes performed by a computer or processor, whether or not the computer or processor is explicitly shown in a substantially readable form on a computer-readable medium. It should be understood as indicating.

In addition, the term'terminal' used in the present invention is a term used for convenience of description, and may be expressed as'device' or'server' and is replaceable.

Also, the clear use of terms presented in terms of processors, controls, or similar concepts should not be interpreted exclusively by reference to hardware capable of executing software, and without limitation, digital signal processor (DSP) hardware, ROM for storing software. It should be understood to implicitly include (ROM), RAM and non-volatile memory. Other hardware for governors may also be included.

The above objects, features, and advantages will become more apparent through the following detailed description in connection with the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains can easily implement the technical spirit of the present invention. There will be. In addition, in the description of 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.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram briefly showing the configuration of a system for providing air quality information according to a major indoor environment change according to the present invention.

The system for providing air quality information according to major indoor environment changes according to an embodiment of the present invention includes at least an environmental information measurement control device 100, a terminal 200, and a main server 300, and the environmental information measurement control device 100 ), the terminal 200 and the main server 300 may be provided with a communication module for each of the data transmission and reception.

The communication module may be composed of a short-range communication module or a communication module using a mobile communication network, and the short-range communication module may include all communication modules using communication methods such as NFC, Bluetooth, Zigbee, and Beacon.

The environmental information measurement control device 100 is installed at a predetermined indoor location to measure air quality near a predetermined location, and generates indoor air quality data. In addition, the environmental information measurement control device 100 grasps indoor situation information such as the number of people present in the room and window opening detection, and generates indoor situation data therefor.

The terminal 200 is a terminal of a user using an air quality information providing system according to a major environmental change in the room, and mainly receives air quality information and a hazard notification according to the environmental change and may display the terminal on the terminal as shown in FIG. 5.

The terminal 200 may be a smart phone, a tablet PC, a desktop computer or a laptop capable of Internet communication.

The main server 300 can communicate with the environmental information measurement control device 100 and the terminal 200, receives indoor air quality data from the environmental information measurement control device 100, and sends it to the main server 300. The air quality index can be calculated and summed in comparison with the stored standard of the human harmfulness to calculate the total air quality index, and based on this, a function of providing a hazard notification to the user's terminal 200 may be performed.

At this time, depending on the design, the configuration and function of the main server 300 may be applied to all of the environmental information measurement control device 100 and function integrally.

2 is a block diagram schematically showing the configuration of an environmental information measurement control device according to an embodiment of the present invention.

The environmental information measurement control apparatus 100 according to FIG. 2 may include an environmental information measurement unit 110, a situation determination processing unit 120, a communication unit 130, and a control unit 140.

The environmental information measurement unit 110 includes a temperature measurement sensor 111, a humidity measurement sensor 112, a fine dust measurement sensor 113, and a carbon dioxide measurement sensor 114.

The temperature measurement sensor 111 is a sensor that responds to a change in temperature, detects a change in temperature, measures room temperature, and dataizes the measured temperature.

The humidity measurement sensor 112 can electrically detect indoor humidity and data the measured humidity by using the property that the dielectric constant of the resistance value of the organic polymer or ceramic changes due to water vapor in the atmosphere.

The fine dust measurement sensor 113 may indirectly measure the indoor fine dust concentration by using the physical properties of radiation or light, and data the measured fine dust concentration.

The carbon dioxide measurement sensor 114 is an infrared gas sensor or a chemical gas sensor, and measures indoor carbon dioxide concentration and can measure the measured carbon dioxide concentration.

The situation determination processing unit 120 includes a person counter sensor 121, a window opening detection sensor 122, a hazard notification sensor 123, and an alarm sensor 124.

The person counter sensor 121 is a count sensor that uses infrared rays. Two pairs of IN and OUT sensors are installed on both sides of the entrance to calculate the number of incoming and outgoing persons in the order recognized by the time difference, and the number of persons remaining in the room. It can function to be able to grasp.

The window opening detection sensor 122 may install a pair of opening/closing detection sensors capable of determining the opening/closing of the window on the window frame, and recognize whether the distance between the pair of sensors is more than a certain distance to determine whether the window or door is opened. It can function as possible.

The hazard notification sensor 123 can change and control the LED color or sound of the environmental information measurement control device 100 based on the human hazard index data received from the main server 300 so that the user can grasp the hazard of indoor air quality. To make.

Here, the LED color may be designed to be displayed in red, for example, as the human hazard index is higher, and the sound "Please open the window." Or "Please close the window and operate the air cleaner because the concentration of fine dust is too high." It can be designed to output the back.

The human hazard index data may be designed to be transmitted to the user's terminal 200 as well.

The alarm sensor 124 may be designed to generate an alarm notification when the harmfulness data received from the main server 300 is fatal to the human body.

The communication unit 130 is a means for mediating data transmission to the terminal 200 and mediating data reception from the main server 300, a wireless LAN network, a wideband code division multiple access (WCDMA) network, and a high speed downlink packet access (HSDPA) Networks, LTE (Long Term Evolution) networks, and LTEA (LTE Advanced) networks.

3 is a block diagram schematically showing a configuration of a main server in a system for providing air quality information according to a major indoor environment change according to an embodiment of the present invention.

The main server 300 may include a data receiving unit 310, an indoor air quality index calculating unit 320, a human body hazard index calculating unit 330, and a data transmitting unit 340.

The data receiving unit 310 performs a function of receiving and storing indoor air quality data and indoor situation data from the environmental information measurement and control device 100, and also performs a function of receiving and storing the standard range data of human hazards from an external server. Can.

The indoor air quality index calculation unit 320 for each indoor situation is based on the indoor situation data received through the data receiving unit 310 (for example, the number of people present in the room or whether the windows are opened or closed) and the standard range data for human hazards. It can perform the function of generating comprehensive air quality index data for each situation.

At this time, the comprehensive air quality index data for each situation can be expected to increase the amount of carbon dioxide generated when the number of people entering the indoor space gradually increases.In order to measure the more sensitive pollution level, the reflection weight for the pollutant (carbon dioxide) is increased step by step. Comprehensive air quality index data can be generated.

The overall index calculation method can be calculated by the following equation.

(I _S : Indoor air quality index

W _D : Weight of reflecting the composite index of fine dust, I _D : Pollution degree index of fine dust (score),

W _C : Weight of reflecting the composite index of carbon dioxide, I _C : Pollution degree index of carbon dioxide (score)

W _T : Weight reflecting the composite index of temperature, I _T : Pollution degree index of temperature (score)

W _H : Weight of reflecting the overall index of humidity, I _H : Pollution degree index of humidity (score))

W _D + W _C + W _T + W _H = 1.0

At this time, depending on how the weight of each pollutant is adjusted, the reflectivity for a specific pollutant can be increased or decreased, and through this, it is possible to provide an appropriate air quality level according to a change in a specific space.

As a basic weight control method, if all N pollutants exist, the weight of major pollutants in each situation is increased from the initial weight (1/N) to 0.2*(N-1) level in stages and the rest of the pollutants Decrease the weight for by equal to 0.2.

In addition, the increase/decrease step uses a measurement element suitable for the characteristics of each pollutant, and the value of the measurement element for each step is designed to be adjustable according to the space situation.

For example, the comprehensive air quality index data can be divided into 1 to 4 stages from the initial stage as shown in the table below.In the initial stage, there are less than 10 people in the room, and in the first stage, 10 to 19 people in the room. The number of persons may be divided into 20 to 29 persons in the second phase, 30 to 39 persons in the third phase, and 40 or more persons in the fourth phase, which may be set and changed under the control of the administrator.

step W _D W _C W _T W _H Early Less than 10 0.25 0.25 0.25 0.25 Level 1 10 ~ 19 people 0.23 0.31 0.23 0.23 Stage 2 20-29 people 0.21 0.37 0.21 0.21 Stage 3 30 ~ 39 people 0.19 0.43 0.19 0.19 Stage 4 40 or more 0.17 0.49 0.17 0.17

In addition, the comprehensive air quality index data for each situation can be expected to increase the amount of fine dust flowing from the outside when a window is opened in the indoor space, and the weight of reflection for the pollutant for more sensitive pollution measurement (fine dust) Can be increased step by step to generate comprehensive air quality index data.

For example, the comprehensive air quality index data can be divided into 1 to 4 stages from the initial stage as shown below, the initial stage is 0 indoor fine dust, 1 stage is 1, 2 stages are 2, and 3 stages are The three and four levels can be divided into four, which can be set and changed under the control of the administrator.

step W _D W _C W _T W _H Early 0 0.25 0.25 0.25 0.25 Level 1 One 0.31 0.23 0.23 0.23 Stage 2 2 0.37 0.21 0.21 0.21 Stage 3 Three 0.43 0.19 0.19 0.19 Stage 4 4 0.49 0.17 0.17 0.17

The human body hazard index calculation unit 330 may perform a function of generating the human body hazard index data based on the indoor air quality data received through the data receiving unit 310 and the standard range of human hazard data.

At this time, the human hazard index data can be classified according to the harmful codes in the following table through a three-dimensional matrix composed of pollutants, pollution levels, and human hazards, and the human hazard index data is transmitted to the environmental information measurement control device 100 It may function to display a harmful code on the user's mobile communication terminal.

At this time, the harmful code may be set to include an effect on the human body.

Main items Effects on the human body Harmful code Temperature and humidity In the case of infants and the elderly with weak immunity, the influence of the external temperature is large, and there may be a rapid change in body temperature. A1 When the temperature and humidity increase, the discomfort index increases, which affects the condition during indoor living A2 High temperature causes fatigue, and low humidity causes eye fatigue A3 fine dust Need attention when having lung/heart disease such as infants/children and asthma B1 Possible respiratory diseases such as inflammation in the bronchus B2 High blood pressure and stroke may occur in patients with heart disease and circulatory disease during long-term exposure B3 carbon dioxide ·Induces headaches when living indoors C1 ·Flushing and difficulty breathing during long-term C2 High concentrations of long-lasting effects on brain development, and severe cases of vomiting C3 carbon monoxide Increases allergies, rhinitis and atopic dermatitis D1 Chronic lung disease, increased airway resistance, central nervous system effects, tissue suffocation, circulatory disorders, hemocytosis, multiple symptoms, proteinuria D2 VOC ・It affects the condition, such as a stinging eye or irritation to the nose and throat E1 Hematopoietic organ disorders, neurological disorders, skin disorders, fatigue, carcinogenic potential E2

At this time, for example, the matrix related to the human harmfulness of the fine dust and carbon dioxide may be defined as Table 4 and Table 5 below.

)Standard range(

) Exponential formula Calculation index evaluation
result harmfulness
code

good -

usually B1

Bad B2

Extremely
Bad B3

Reference range (ppm) Exponential formula Calculation index evaluation
result harmfulness
code

good -

usually C1

Bad C2

Very bad C3

The data transmission unit 340 measures the indoor air quality index data and the human body hazard index data generated by the indoor situation by the air quality index calculation unit 320 and the human body hazard index calculation unit 330, and the environmental information measurement control device 100 To perform the function of transmitting.

4 is a flowchart illustrating a process of providing an air quality information providing system according to a major indoor environment change according to an embodiment of the present invention.

First, after the environmental information measurement unit 110 of the environmental information measurement control device 100 measures indoor air quality at a predetermined point and generates indoor air quality data, the situation determination processing unit 120 determines the detection of the indoor person and window opening The indoor situation data is generated and transmitted to the main server 300 (S510, S520).

The main server 300 calculates the air quality index and the human hazard index for each indoor situation based on the received data, and transmits the harmful code of the calculated human hazard index data back to the environmental information measurement control device 100 (S530, S540).

Thereafter, the environmental information measurement control device 100 transmits a harmful code to the user terminal 200 and generates an alarm notification when the human harmful data is fatal to the human body (S550).

FIG. 5 is a diagram exemplarily showing a screen of a user terminal using an air quality information providing system according to a major indoor environment change according to an embodiment of the present invention.

5(a) and 5(b) are exemplary air quality index steps and air quality index step warning signals provided by the user terminal provided by the air quality information providing system according to changes in major indoor environments according to an embodiment of the present invention. It is shown in the figure.

In the above, even if all the components constituting the embodiments of the present invention are described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, if it is within the scope of the present invention, all of the components may be selectively combined and operated. The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

Claims (4)

It is installed at a certain point inside the room and measures the air quality near a certain point every time to generate indoor air quality data, and by detecting sensors and window opening detection through the sensor installed in the room, it generates indoor situation data, and the generated indoor air quality data And calculates the air quality index and human hazard index for each indoor situation based on the indoor situation data, transmits the harmful code of the calculated human hazard index data to the user terminal, and generates a notification and alarm according to the human hazard index
Air quality information provision device according to major indoor environment changes.
According to claim 1,
The indoor air quality data includes indoor air quality temperature data, humidity data, fine dust data, and carbon dioxide data,
The indoor situation data is characterized in that it comprises the indoor personnel data measured through a counter sensor, the indoor window opening and closing data detected through the open sensor.
Air quality information provision device according to major indoor environment changes.
According to claim 1,
The human hazard index is characterized by being classified by hazard codes through a three-dimensional matrix composed of pollutants, pollution levels, and human hazards.
Air quality information provision device according to major indoor environment changes.
According to claim 1,
The hazard notification is characterized in that provided through the LED color or sound
Air quality information provision device according to major indoor environment changes.

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